JP5728514B2 - Substrate conveyor - Google Patents

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a substrate conveyor that is provided in various anti-substrate working machines that perform operations on circuit boards, such as electronic circuit component mounting machines and screen printing machines, and that transports circuit boards and stops them at predetermined positions. It is.

This type of substrate conveyor is widely used, and a substrate support device included therein includes, for example, a plurality of support members and a lifting device that lifts and lowers the support members as described in Patent Document 1 below. The supporting member is raised by the lifting device and brought into contact with the lower surface of the circuit board, and is supported from below.
JP-A-11-195899

  However, there is still a point to be improved in the substrate conveyor provided with this kind of substrate holding device. The present invention has been made in the background of the above circumstances, and an object of the present invention is to provide a substrate conveyor provided with a substrate support device that can hold a circuit board satisfactorily.

In order to solve the above problems, the substrate conveyor of the present invention is
A conveyor belt that circulates along a closed curve including a horizontal straight section;
A guide rail provided with a guide surface for guiding a side edge of a circuit board supported and transported by a transport portion which is a portion corresponding to the linear portion of the conveyor belt;
A push-up member that supports the lower surface of the side edge of the circuit board supported by the transport unit and floats up from the transport unit;
A receiving member that extends in parallel with the conveying portion above the conveying portion, receives a side edge portion of the circuit board that is pushed up by the push-up member, and sandwiches the side edge portion of the circuit board together with the raising member;
A board support member for supporting the circuit board from below;
An elevating device for elevating and lowering the push-up member and the substrate support member;
A substrate conveyor for conveying a circuit board in a conveyance direction,
The lifting device is
An elevating member for pushing up the push-up member;
A first elevating part for elevating the elevating member;
A second elevating unit held by the elevating member and relatively elevating the substrate support member with respect to the elevating member;
A lifting control unit for controlling the first lifting unit and the second lifting unit;
Including
When the board conveyor supports a circuit board having an electronic circuit component already mounted on the lower surface, the substrate support member is elastically deformed by contacting the electronic circuit component mounted on the lower surface, and the circuit board. When you move
The elevation controller is
The electronic circuit component having the highest height among the electronic circuit components on which the board support member is already mounted after the push-up member is raised to a position where the circuit board is sandwiched together with the receiving member by the first elevating part. The first elevating part and the first elevating part so that the substrate supporting member starts to rise by the second elevating part in the middle of the raising of the push-up member by the first elevating part at the timing of contacting the lower surface of the circuit component The second elevating part is controlled.

When the board conveyor supports a circuit board having an electronic circuit component already mounted on the lower surface , the board support member has already been placed before the push-up member sandwiches the side edge of the circuit board in cooperation with the receiving member. There is a risk of shifting the circuit board if it contacts the lower surface of the mounted electronic circuit component , but the circuit board is supported by the board support member with the circuit board sandwiched between the push-up member and the receiving member. By doing so, the circuit board can be supported without being displaced.

In a desirable mode of the present invention, in a substrate conveyor comprising (a) a conveyor belt, (b) a guide rail, (c) a push-up member, (d) a receiving member, (e) a substrate support member, and (f) a lifting device. A through-hole penetrating in the vertical direction is formed in the substrate support member, and the detector is disposed in the through-hole so as to be movable between a projecting position projecting from the substrate support surface of the substrate support member and a non-projecting retracted position. In addition, when the detector is biased to the protruding position by the detector biasing device and the substrate support member is raised by the lifting device, the substrate support member is detected by detecting that the detector has moved from the protruding position to the retracted position. A contact detection unit is provided for detecting that the contact with the back surface of the circuit board.
In another desirable mode, the substrate conveyor includes the (a) conveyor belt, (b) guide rail, (c) push-up member, (d) receiving member, (e) substrate support member, and (f) lifting device. The portion of the substrate support member that contacts the back surface of the circuit board is made of a soft elastic material, and the portion that contacts the electronic circuit component that is already mounted on the back surface of the circuit substrate is elastically deformed. The portion is allowed to come into contact with the back surface of the circuit board to support the circuit board.

Aspects of the Invention

  In the following, the invention that is claimed to be claimable in the present application (hereinafter referred to as “claimable invention”. The claimable invention is at least the “present invention” to the invention described in the claims. Some aspects of the present invention, including subordinate concept inventions of the present invention, superordinate concepts of the present invention, or inventions of different concepts) will be illustrated and described. As with the claims, each aspect is divided into sections, each section is numbered, and is described in a form that cites the numbers of other sections as necessary. This is for the purpose of facilitating the understanding of the claimable invention, and is not intended to limit the combinations of the constituent elements constituting the claimable invention to those described in the following sections. In other words, the claimable invention should be construed in consideration of the description accompanying each section, the description of the embodiments, the prior art, and the like. The added aspect and the aspect in which the constituent elements are deleted from the aspect of each item can be an aspect of the claimable invention.

(1) a support member that supports the lower surface of the brittle substrate on the upper support surface;
A detector that can move to a protruding position that protrudes above a support plane including the support surface of the support member, and a retracted position that is below the support plane; and
A detector urging device that urges the detector in a direction from the retracted position toward the protruding position;
An elevating device that raises and lowers the support member, the detector, and the detector urging device to a support position for supporting the brittle substrate and a retracted position below the support position;
A protrusion detector for detecting movement of the detector to the protruding position;
A crack determination unit that determines that the brittle substrate is cracked when the protrusion detector detects the protrusion of the brittle substrate to the protruding position by the support detector in a state in which the brittle substrate is supported by the support member;
A substrate support apparatus comprising:
(2) The substrate support device according to (1), wherein a plurality of sets of the detector, the detector urging device, and the protrusion detector are provided at a distance in the horizontal direction.
The crack of a brittle board | substrate can be detected in several places, and the reliability of crack detection improves.
(3) Furthermore,
A receiving member that contacts the upper surface of the brittle substrate and receives the brittle substrate;
A pressing member that is raised by the lifting device and presses a side edge of the brittle substrate against the receiving member;
And the plurality of sets of detectors, detector urging devices, and protrusion detectors include two or more sets provided at a distance in a direction perpendicular to the side edge portion. Substrate support device.
If the substrate support device includes two sets of detectors, detector urging devices, and protrusion detectors, the two sets of detectors and the like are provided at a distance in the direction perpendicular to the side edge and include three or more sets. In this case, all of the three or more sets of detectors, etc. may be provided at a distance in a direction perpendicular to the side edge, or two or more sets of detectors, etc. less than the total number of sets. May be provided at a distance in a direction perpendicular to the side edge, and the rest may be provided at the same position as any of two or more sets of detectors in the direction perpendicular to the side edge.
When the side edge of the brittle substrate is sandwiched and held between the receiving member and the pressing member, the brittle substrate easily breaks at a crack substantially parallel to the side edge, and two or more pairs of detectors are perpendicular to the side edge. By providing a distance in a proper direction, the reliability of crack detection is increased.
(4) The substrate support according to any one of (1) to (3), wherein the support member includes a soft support member made of a foam material and supporting the brittle substrate in surface contact with the lower surface of the brittle substrate. apparatus.
There may be one or more soft support members. Contact area of soft support member to bottom surface of brittle substrate
(When there is one soft support member, the contact area of the one soft support member, and when there are a plurality of soft support members, the total contact area of the plurality of soft support members) is the area of the lower surface of the brittle substrate. It may be 20% or more, and is preferably 40% or more and 60% or more.
The brittle substrate is less likely to crack when the support member contacts the brittle substrate, and the impact applied when the work head is applied to the brittle substrate is absorbed by the soft support member, and the brittle substrate is difficult to break. Or the vibration of a brittle board | substrate is suppressed favorably.
(5) The substrate support apparatus according to (4), wherein the detector is disposed in a through hole formed so as to penetrate the soft support member in the thickness direction so as to be relatively movable in the vertical direction.
The detector can be arranged at a location supported by the soft support member of the brittle substrate, and the crack of the substrate can be detected.
(6) a lifting member that is lifted and lowered by the lifting device;
A receiving member that contacts the upper surface of the brittle substrate and receives the brittle substrate;
A pressing member that is provided so as to be capable of moving up and down relatively with respect to the lifting member, is raised based on the lifting of the lifting member, and presses the brittle substrate against the receiving member;
A pressing member biasing device for biasing the pressing member in the upward direction relative to the lifting member;
The substrate support apparatus according to any one of (1) to (5), including:
The elevating member is further raised from the state where the pressing member presses the brittle substrate against the member. This rise is allowed when the elevating member rises with respect to the pressing member by the action of the pressing member urging device. The pressing member presses the brittle substrate against the receiving member by the biasing force of the pressing member biasing device generated based on the relative movement between the lifting member and the pressing member. This biasing force is applied by the lifting member via the pressing member biasing device. Therefore, when the pressing member is directly raised and pressed against the brittle substrate against the member, it is smaller than the force acting on the brittle substrate, and can be reliably held while avoiding cracking of the brittle substrate.
(7) The substrate support according to (6), including a rising limit defining portion that defines a rising limit of the lifting member.
apparatus.
The rising limit defining part may be configured to prevent the lifting member itself from rising, or may be configured to stop the lifting member from being lifted by the lifting device. In any case, since the upper limit of the lifting member is defined, the allowable movement of the lifting member and the pressing member by the pressing member urging device reaches the limit, and the lifting member and the pressing member rise integrally. It is avoided that an excessive pressing force acts on the brittle substrate in a state. Alternatively, when the pressing member biasing device generates a biasing force based on the elastic force of the elastic member, the elastic member is excessively deformed and the elastic force is excessive, and the pressing member is excessively pressed. Applying force to the brittle substrate is avoided.
(11) a conveyor belt that circulates along a closed curve including a horizontal straight portion;
A guide rail provided with a guide surface for guiding a side edge of a circuit board supported and transported by a transport portion which is a portion corresponding to the linear portion of the conveyor belt;
A push-up member that supports the lower surface of the side edge of the circuit board supported by the transport unit and floats up from the transport unit;
A receiving member that extends in parallel with the conveying portion above the conveying portion, receives a side edge portion of the circuit board that is pushed up by the lifting member, and sandwiches the side edge portion of the circuit board together with the lifting member;
In a substrate conveyor that conveys a circuit board in the conveyance direction,
The receiving member is provided with a hanging portion that hangs downward from a free end edge (tip edge) of the receiving member, and the guide rail has an operation position where the hanging portion faces the push-up member, and an operation position thereof. The suspending portion is movably held at the retracted retracted position, and at least one notch that crosses the hanging portion at a right angle is provided in at least the hanging portion of the receiving member, thereby making the hanging portion a plurality of partially hanging portions, 2. A substrate conveyor according to claim 1, wherein an accommodation recess is formed on at least the guide surface of the guide rail to accommodate each of the plurality of partial hanging portions when the receiving member is moved to the retracted position.
In a state where the receiving member is located at the operating position, the circuit board is received by the hanging portion and is received below the free end edge of the receiving member. Therefore, the circuit board has a step on the upper surface, and the work surface on which the work is performed is positioned above the receiving surface received by the receiving member.
In the case where the work is to be performed, the work surface can be placed at a predetermined position below the lower surface of the free end edge of the receiving member.
Further, in a state where the receiving member is located at the retracted position, the partial hanging portion is housed in the housing recess and is retracted from the guide surface, so that the circuit board is not received by the receiving member and the upper surface of the side edge portion is opened. The work can be performed as a part of the work surface. In this case, the circuit board is pushed upward by the push-up member from the lower end of the partial hanging part, but the partial hanging part is positioned at an interval in the transport direction, and there is a guide surface between the partial hanging parts, so that the circuit The substrate is moved up and down while being guided by the guide surface. The hanging part is not provided with a notch and can be long in the conveying direction. In this case, however, there is no guide surface above the lower edge of the hanging part, and the circuit board is guided by the guiding surface. If the hanging part is a plurality of partially hanging parts, the guide surface can be changed. It is possible to leave and lift the circuit board satisfactorily while guiding the circuit board on the guide surface.
(12) A plurality of elongated holes extending in a direction perpendicular to the conveying direction are formed at a plurality of locations separated in a direction parallel to the conveying direction of the receiving member, while a male screw member having a head includes the plurality of The receiving member is screwed into a female screw hole formed in the upper surface of the guide rail through each of the elongated holes, and the receiving member is moved to the working position and the retracted position by the head and the upper surface of the guide rail. The substrate conveyor as set forth in (11), which is sandwiched in a state that allows movement to and from.
In a state where the male screw member is firmly tightened in the female screw hole, a gap defining portion is provided that keeps the gap between the head of the male screw member and the upper surface of the guide rail slightly larger than the thickness of the peripheral portion of the elongated hole of the receiving member. It is desirable. For example, the male screw member is a stepped screw having a large diameter portion slightly longer than the thickness of the peripheral portion of the long hole of the receiving member, or the sleeve is slightly longer than the thickness of the peripheral portion of the long hole of the receiving member. The purpose can be achieved by fitting the two, and the large diameter portion and the sleeve constitute the gap defining portion.
Regardless of the simple structure, the lifting of the receiving member from the guide rail is restricted at a plurality of locations separated in the direction parallel to the conveying direction, and the side edge of the circuit board is received at an accurate height at the operating position. Can do.
(13) An engaging protrusion that is elastically biased in a protruding direction is provided on one of the guide rail and the receiving member, and the engaging protrusion is provided on the other of the guide rail and the receiving member. The substrate conveyor according to (11) or (12), wherein two engaging recesses are provided to engage and position the receiving member at the operating position and the retracted position, respectively.
The receiving member can be selectively kept at the operating position and the retracted position. It is desirable that the position holding portions formed by the combination of the engaging protrusion and the two engaging concave portions are provided at two or more locations separated in the longitudinal direction of the receiving member.
(14) The substrate conveyor as set forth in the item (13), wherein the engagement protrusion is configured by a ball plunger ball.
(15) With the receiving member positioned at the operating position, the push-up member is raised to a first ascending position that contacts the receiving member via the circuit board, and the receiving member is positioned at the retracted position. The substrate conveyor according to any one of (11) to (14), further including an elevating device that raises the push-up member to a second ascending position that is higher than the first ascending position.
In the state where the receiving member is located at the operating position, the rising end of the circuit board is determined by the hanging part. However, in the state where the receiving member is located at the retracted position, there is nothing to receive the circuit board. Can be raised to a higher position.

(21) a conveyor belt that circulates along a closed curve including a horizontal straight portion;
A guide rail provided with a guide surface for guiding a side edge of a circuit board supported and transported by a transport portion which is a portion corresponding to the linear portion of the conveyor belt;
A push-up member that supports the lower surface of the side edge of the circuit board supported by the transport unit and floats up from the transport unit;
A receiving member that extends in parallel with the conveying portion above the conveying portion, receives a side edge portion of the circuit board that is pushed up by the push-up member, and sandwiches the side edge portion of the circuit board together with the raising member;
A board support member for supporting the circuit board from below;
An elevating device for elevating and lowering the push-up member and the substrate support member;
A substrate conveyor for conveying a circuit board in a conveyance direction,
The lifting device is
An elevating member for pushing up the push-up member;
A first elevating part for elevating the elevating member;
A second elevating unit held by the elevating member and relatively elevating the substrate support member with respect to the elevating member;
After the push-up member is raised to a position where the circuit board is sandwiched in cooperation with the receiving member by the first elevating part, the board support member is moved to a position where the second elevating part comes into contact with the lower surface of the circuit board. An elevating control unit for controlling the first elevating unit and the second elevating unit so as to be raised;
Including substrate conveyor.
If the board support member comes into contact with the lower surface of the circuit board before the push-up member cooperates with the receiving member to sandwich the side edge of the circuit board, the circuit board may be displaced. The circuit board can be supported by the board support member while being sandwiched between the member and the receiving member, and the circuit board is supported without being displaced.
(22) The board support member includes a soft support member that elastically deforms when contacting the electronic circuit component mounted on the back surface of the circuit board and supports the circuit board while allowing the electronic circuit part to exist. The substrate conveyor according to item (21).
The board support member may be a member that contacts and supports the lower surface of the circuit board while allowing the presence of the electronic circuit component, and does not contact the lower surface of the circuit board and supports the circuit board via the electronic circuit component. You may do it. The latter substrate support member is formed of, for example, an elastic member or has a cushion function, and stops if there is an electronic circuit component in the middle of ascending to a position in contact with the lower surface of the circuit board. Due to elastic deformation and cushioning action, the substrate support member that does not contact the electronic circuit component is allowed to contact the lower surface of the circuit board.
According to the invention of this section, even if the electronic circuit component is already mounted on the back surface of the circuit board, the board support member can support the circuit board together with the electronic circuit component, and the board depends on the state of the back surface of the circuit board. It is not necessary to change the arrangement of the supporting member, and it can be used for supporting a plurality of types of circuit boards.
The invention according to the item (21) is effective even when the substrate support member supports only the lower surface of the circuit board. However, as in this item, the substrate support member is an electronic circuit component due to its own elastic deformation. This is particularly effective when it is allowed to exist.
(23) The elevating control unit causes the second elevating unit to start raising the substrate support member in response to the elevating member being raised to a set height by the first elevating unit (21 ) Or substrate conveyor as described in (22).
The set height is set to a height at which the second elevating unit is actuated at a timing when the board support member comes into contact with the lower surface of the circuit board after the push-up member sandwiches the circuit board together with the receiving member.
(31) Each of a plurality of electronic circuits arranged adjacent to each other, each including a substrate support device for supporting a circuit board and a mounting device for mounting an electronic circuit component on the circuit board supported by the substrate support device A component mounting machine;
A board conveyor that is provided through the plurality of electronic circuit component mounting machines, and that carries circuit boards into and out of them.
An electronic circuit component mounting system comprising:
Each of the substrate support devices includes a lifting member that can be lifted and lowered by lift devices independent of each other, and the electronic circuit component mounting system includes:
A common support base that is arranged across the plurality of electronic circuit component mounting machines, supports the circuit board carried into each electronic circuit component mounting machine by the substrate conveyor, and floats from the substrate conveyor;
While fixing the common support base to one of the plurality of lifting members, other than the one lifting member
A common support base mounting device for supporting the common support base via an elastic member on the lifting member
Electronic circuit component mounting system including.
For example, a circuit board having a length extending over a plurality of electronic circuit component mounting machines can be supported on a common support base, and electronic circuit components can be mounted together with a plurality of mounting devices.
If the common support base is lifted and lowered by a plurality of lifting devices, the rising speed is reduced and it is not supported by the lifting member of the common support base that is long in the transport direction as in the case of lifting and lowering by the single lifting device. Although the portion does not hang down, it is not easy to lift and lower the plurality of lifting devices in perfect synchronization, and there is a risk that the guide will be twisted and become inoperable. If the guide portion is lengthened, the occurrence of twisting can be avoided, but the size of the lifting device cannot be avoided. On the other hand, if the common support base is supported by the lifting members other than the one lifting member via the elastic member, it is possible to avoid a large twisting force. For example, when the common support base is raised, a push-up force is also applied to the portion of the common support base that is supported via the elastic member, and the common support base is raised. In addition, because of the elastic deformation of the elastic member, a slight shift in the lifting and lowering of the lifting member to which the common support base is fixed and the other lifting members is allowed, so that a large twisting force is not generated and a plurality of lifting and lowering members are not generated. The device can operate without problems. For example, if the operating speed of any of the plurality of lifting devices is large when ascending, the load on the lifting device increases and the operating speed decreases, while the load on other lifting devices decreases and the operating speed increases. It will rise at almost the same speed.
It is desirable that the elastic member be in a state where it is elastically deformed to a size that supports the common support table horizontally, with the plurality of elevating members raised to the rising end position. The effect of the present invention is particularly effective when the lifting device is inexpensive, such as an air cylinder, but it is difficult to accurately control the operating speed.
(32) A spring retainer provided so as to be movable up and down within a set range on any one of the lifting members other than the one lifting member and the portion of the common support table facing the lifting member;
A spring disposed between the spring retainer and the one, and biasing the spring retainer toward the other of the elevating member and the common support;
The electronic circuit component mounting system according to item (31), wherein the spring functions as the elastic member.
(33) The substrate conveyor is capable of transporting a substrate carrier having a length straddling the plurality of electronic circuit component mounting machines, and the common support is positioned on the substrate carrier and can be relatively raised. The electronic circuit component mounting system according to item (31) or (32), further comprising a plurality of substrate support protrusions for supporting each of the plurality of circuit substrates held on the substrate from below and floating from the substrate carrier.
The plurality of circuit boards may be directly supported by the transport unit and transported, but a shift is likely to occur between the stop positions of the plurality of circuit boards. On the other hand, if the substrate carrier is positioned and transported, and the substrate carrier is stopped at a predetermined position, the plurality of circuit boards can be stopped without mutual displacement.
In addition, the conveyance of the circuit board by using the substrate carrier is the above (11) to (15), (21) to (23) and (41), (51), (61), (71), which will be described below. It can also be applied to the substrate conveyors described in (72), (81), (91), (101), and (111). The substrate carrier includes a positioning device for positioning the circuit board, is positioned and supported by the circuit board and is conveyed by the substrate conveyor, and the stop position of the circuit board is determined by stopping the substrate carrier at a predetermined position.
(41) (a) Two processes that can be rotated around a horizontal axis of rotation, separated from each other in the horizontal direction.
And (b) a conveyor belt wound around the pulleys, the conveyor bell
A circuit board conveyor that supports and conveys the circuit board by means of a conveying section that extends linearly between the two pulleys of the conveyor belt,
A support roller that is rotatably disposed around a rotation axis perpendicular to the transport unit and supports the transport unit, and extends along the transport unit, and supports the transport unit from below. A substrate conveyor comprising both support rails.
The transport unit is easily moved by the rotation of the support roller, and the movement is moderately suppressed by the friction with the support rail. For example, the transport unit can be supported only by the support rail, but if the circuit board is heavy, the frictional resistance between the transport unit and the support rail becomes excessive, preventing smooth transport of the circuit board. . On the other hand, if it is supported only by the support roller, the transport unit can be moved lightly, but the transport unit and the circuit board stop quickly even if one of the two pulleys is prevented from rotating to stop the circuit board. Without moving. When the transport unit is stopped, the circuit board tries to continue to move due to the inertial force, but this movement is blocked by the frictional force between the transport unit and the circuit board. The frictional force is mainly generated between the portion of the transport unit supported by the support roller and the circuit board. However, since the contact area is small, it is difficult to obtain a sufficient frictional force. Further, since the support roller hardly applies a resistance force to the transport unit, the transport unit itself is difficult to stop. For this reason, the transport unit and the circuit board are moved excessively. On the other hand, if a part of the transport unit is supported by the support rail, an appropriate frictional force is generated between the transport unit and the support rail, and the contact area between the transport unit and the circuit board is increased, resulting in friction between the two. The force also becomes an appropriate magnitude, and eventually, the transfer unit and the circuit board are stopped at appropriate positions.
It is possible to provide one support rail at the center and arrange at least one support roller on each side of the support rail, or at least one support roller between the two support rails. is there. However, it is often desirable to provide a plurality of support rollers and support rails.
(51) (a) Two processes that can be rotated about a horizontal axis of rotation, spaced horizontally from each other.
And (b) a conveyor belt wound around the pulleys, the conveyor bell
A substrate conveyor row in which a plurality of substrate conveyors are arranged in series by supporting a circuit board by a conveyance portion extending linearly between the two pulleys of the conveyor belt by the rotation of the conveyor belt,
Although the conveyor belts are adjacent to each other but are respectively disposed between the portions wound around the pulleys, the upper end is located on a tangential plane that is substantially a plane in contact with the conveying unit, and is conveyed to the conveyor belts. Board conveyor row including an additional support member for supporting the circuit board to be formed from below.
For example, when the length of the transported part of the circuit board in the transport direction is shorter than the distance between the transport parts of two adjacent board conveyors, the circuit board is supported by the transport part of the circuit board transported by one transport part. If the front end portion that is not supported is longer than the rear end portion, the front end portion is lowered below the tangential plane. This tip is usually supported by the part of the conveyor belt on the downstream side and is raised to the tangential plane again, but the circuit board is not smoothly transferred between the conveyor belts. It will be.
On the other hand, in the board conveyor row of this section, the tip of the circuit board is prevented from falling by being supported by the additional support member. In addition, when the transported part of the circuit board is longer than the distance between the transport parts of two adjacent board conveyors, the upper end of the additional support member is not located above the transported surface of the circuit board. Does not interfere with the transport.
(61) a conveyor belt that circulates along a closed curve including a horizontal straight portion;
A guide rail provided with a guide surface for guiding a side edge of a circuit board supported and transported by a transport portion which is a portion corresponding to the linear portion of the conveyor belt;
A push-up member that supports the lower surface of the side edge of the circuit board supported by the transport unit and floats up from the transport unit;
A lifting device that lifts and lowers the push-up member;
A receiving member that extends in parallel with the conveying portion above the conveying portion, receives a side edge portion of the circuit board that is pushed up by the lifting member, and sandwiches the side edge portion of the circuit board together with the lifting member;
A substrate conveyor for conveying a circuit board in a conveyance direction,
The receiving member is divided into a plurality of partial receiving members in the transport direction, and at least one of the plurality of partial receiving members sandwiches a side edge portion of the circuit board with the guide rail in cooperation with the push-up member. And at least one other of the plurality of partial receiving members
The substrate conveyor is attached to the guide rail so as to be movable between the operating position and a retracted position that does not face the push-up member from the operating position.
When the movable part receiving member, which is a movable part receiving member, is located at the operating position, the side edge of the circuit board is sandwiched and held between the push-up member and the movable part receiving member. Can be applied. Further, in a state where the movable part receiving member is located at the retracted position, the upper surface of the side edge portion of the circuit board is opened, and work can be performed. By providing one partial receiving member so as to be movable between the operating position and the retracted position, the work can be performed on the circuit board in two modes, and the working mode is easier than when the receiving member is replaced. Can be changed.
The rising end of the circuit board is determined by the side edge portion being received by the movable part receiving member when the movable part receiving member is in the operating position, and when the movable part receiving member is in the retracted position, The push-up member abuts on a fixed part receiving member, which is a fixed part receiving member in FIG.
(71) a conveyor belt that circulates along a closed curve including a horizontal straight portion;
A guide rail having a guide surface for guiding a side edge of a circuit board supported and transported by a transporting portion which is a portion corresponding to the linear portion of the conveyor belt;
A substrate conveyor for conveying a circuit board in a conveyance direction,
The conveyor belt has a guide surface that is provided opposite to an upstream end portion in the transport direction of the transport unit and is inclined in a direction asymptotic to the transport unit from the upstream side to the downstream side in the transport direction. A board conveyor characterized in that when the side edge portion of the circuit board is lifted from the transport portion, a guide portion is provided for guiding the side edge portion to a position in contact with or close to the transport portion.
The raised side edge of the circuit board is guided by the guide unit and brought into contact with or close to the transport unit, so that a state of being substantially parallel to the transport unit before and after the guide unit in the transport direction is obtained.
(72) The conveyor belt, the guide rail, and the guide portion are provided in two sets with a distance in a direction perpendicular to the transport direction and the guide surfaces facing each other, and the guide portion in the transport direction. A light-emitting part and a light-receiving part facing each other, and one of the light-emitting part and the light-receiving part is located above the circuit board carried by the carrying part, and the light-emitting part and the light-receiving part The substrate conveyor as set forth in (71), wherein a transmissive substrate detector is provided, the other of which is located below the circuit board.
By providing the light emitting part and the light receiving part above and below the circuit board, the light emitted from the light emitting part toward the light receiving part obliquely crosses the circuit board, and the detection area of the board detector moves up and down. Widen in direction. In addition, since the floating of the side edge of the circuit board is suppressed before and after the guide part, the upstream end (front end) and the downstream end (rear end) in the circuit board transport direction are surely within the detection region. Thus, the loading or unloading of the circuit board is accurately detected. Since the floating of the side edge portion of the circuit board is suppressed at a portion closer to the guide portion in the transport direction, the board detector is provided in a range in which the suppression effect by the guide portion can be obtained in the transport direction.
(81) a conveyor belt that circulates along a closed curve including a horizontal straight portion;
A guide rail provided with a guide surface for guiding a side edge of a circuit board supported and transported by a transport portion which is a portion corresponding to the linear portion of the conveyor belt;
A push-up member that supports the lower surface of the side edge of the circuit board supported by the transport unit and floats up from the transport unit;
A lifting device that lifts and lowers the push-up member;
A receiving member that extends in parallel with the conveying portion above the conveying portion, receives a side edge portion of the circuit board that is pushed up by the lifting member by a receiving surface, and sandwiches the side edge portion of the circuit board together with the lifting member;
A board fixing detecting device for detecting that a side edge portion of the circuit board is sandwiched and fixed between the push-up member and the receiving member;
A substrate conveyor for conveying a circuit board in a conveyance direction, wherein the substrate fixing detection device is
The contactor and the detected part are integrally provided and can be rotated around a rotation axis, and the lower end of the contactor is always located below the receiving surface of the receiving member, and the side edge of the circuit board. A detection member that is moved to the position of the receiving surface by a side edge as the portion is pushed up by the push-up member;
A sensor unit that does not detect the detected portion when the contact is positioned below the receiving surface, and detects the detected portion when the contact is moved to the position of the receiving surface;
A substrate conveyor characterized by comprising:
The contact is moved by the circuit board, and the contact is moved to the position of the receiving surface while the circuit board is just brought into contact with the receiving surface and sandwiched between the push-up member and the receiving member, and the circuit board is held. Is detected. Since the detection member is rotated on the circuit board and the detected part is detected by the sensor unit, the fixed detection of the circuit board is detected as compared with the case where the lifting device detects the holding of the circuit board based on the amount by which the lifting member is raised. The reliability will be higher.
(91) a conveyor belt that circulates along a closed curve including a horizontal straight portion;
A guide rail provided with a guide surface for guiding a side edge of a circuit board supported and transported by a transport portion which is a portion corresponding to the linear portion of the conveyor belt;
A push-up member that pushes up a side edge portion of the circuit board from below and floats up from the transport portion of the conveyor belt;
The base end is held by the guide rail, the tip extends in a cantilevered manner above the transport unit, receives the upper surface of the side edge of the circuit board by the receiving surface which is the lower surface of the tip, A receiving member that sandwiches the side edge jointly with the push-up member;
In the substrate conveyor including
The base end portion of the receiving member is retracted by retracting the guide rail to the guide rail, the working position where the receiving surface of the tip portion is located above the push-up member, and a direction perpendicular to the guide surface from the working position. The substrate conveyor is characterized in that the receiving surface is inclined so as to rise from the distal end side to the proximal end side of the receiving member.
Since the receiving member provided so as to be movable in the direction orthogonal to the transport direction has a gap between the guide member that guides the movement, the tip end portion is pressed when the side edge of the circuit board is pressed by the pressing member. As the side is lifted, the orientation of the receiving surface changes, and is no longer perpendicular to the guide surface, and the circuit board warps along the orientation of the receiving surface. On the other hand, if the receiving surface is inclined in advance, the inclination of the receiving surface with respect to the guide surface due to the rising of the tip of the receiving member is reduced, and the warping of the circuit board is reduced by being close to a right angle or at a right angle. Work on the circuit board is performed with high accuracy.
The receiving surface of the receiving member has a direction in which the distal end side floats relatively to the base end side held by the guide rail when the push-up member presses the side edge portion of the circuit board against the receiving surface. It is desirable to be tilted by an angle that is just perpendicular to the guide surface (usually horizontal) in the rotated state, but if it is a small angle, the angle is smaller than the angle that is just perpendicular to the guide surface. It may be tilted or tilted at a large angle. In the former case, the warping of the circuit board is reduced as compared with the case where it is not inclined, and in the latter case, the receiving surface is lowered forward from the horizontal state (the tip side) when the receiving member is rotated. The circuit board is tilted downward and the upper warp is removed.
The inclination angle of the receiving surface may be 0.4 degrees or more, and is preferably 1 degree or more and 1.5 degrees or more.
(101) a conveyor belt that circulates along a closed curve including a horizontal straight portion;
A guide rail having a guide surface for guiding a side edge of a circuit board supported and transported by a transporting portion which is a portion corresponding to the linear portion of the conveyor belt;
A substrate conveyor for conveying a circuit board in a conveyance direction,
The conveyor belt is provided in contact with a support surface that supports the side edge of the circuit board, and
A substrate conveyor comprising a cleaning brush for cleaning the support surface along with the rotation of the yabelt.
As the conveyor belt circulates, the cleaning brush moves relative to the conveyor belt and wipes off dust and dirt adhering to the support surface of the conveyor belt. Thereby, a decrease in the friction coefficient of the support surface due to the contamination of the support surface is suppressed, and the circuit board transfer function of the board conveyor is improved. The invention according to this section is particularly effective in a substrate conveyor of a type in which a circuit board is stopped and positioned by frictional force by stopping the conveyor belt.
(111) a conveyor belt that circulates along a closed curve including a horizontal straight portion;
A guide rail provided with a guide surface for guiding a side edge of a circuit board supported and transported by a transport portion which is a portion corresponding to the linear portion of the conveyor belt;
A push-up member that supports the lower surface of the side edge of the circuit board supported by the transport unit and floats up from the transport unit;
A receiving member that extends in parallel with the conveying portion above the conveying portion, receives a side edge portion of the circuit board that is pushed up by the lifting member, and sandwiches the side edge portion of the circuit board together with the lifting member;
In a substrate conveyor that conveys a circuit board in the conveyance direction,
A substrate conveyor, wherein an ionizer for injecting a gas containing ions that neutralizes a charged charge of a circuit board is disposed on a lifting member that is moved up and down to raise and lower the push-up member.
Static electricity on the circuit board is removed, and adverse effects of static electricity are eliminated. For example, when the electronic circuit component mounted on the circuit board is prevented from being damaged due to charging, and the board conveyor is for transferring the circuit board to an electronic circuit component mounting machine for mounting the electronic circuit component on the circuit board, The normal mounting of electronic circuit components is prevented from being disturbed by static electricity.

It is a perspective view which shows the external appearance of the electronic circuit component mounting system containing several mounting modules each provided with the board | substrate support apparatus which is an Example of claimable invention. It is a perspective view which expands and shows a part of said system, and removes a part. It is a perspective view which decomposes | disassembles and shows the head moving apparatus of the component mounting apparatus of the mounting module which comprises the said system. It is a front view which shows one side of a pair of side frame of the board | substrate conveyor of the said mounting module. It is a side view (partial cross section) which shows the said board | substrate conveyor with a board | substrate support apparatus raising / lowering apparatus. It is a top view which shows one side of a pair of side frame of the said board | substrate conveyor. It is a side view (part cross section) which shows the support rail and conveyor belt of the said board | substrate conveyor. It is a side view (partial cross section) which shows the support roller and conveyor belt of the said substrate conveyor. FIG. 9A is a perspective view showing a portion provided with a hanging portion and a receiving concave portion of the receiving member and the guide rail of the side frame of the substrate conveyor, FIG. 9A is a view showing the receiving member, and FIG. ) Is a view showing a guide rail, and FIG. 9C is a view showing a state in which the hanging portion is housed in the housing recess. It is side surface sectional drawing which shows the state in which the movable partial receiving member which comprises the said receiving member was attached to the guide rail so that a movement was possible by the external thread member. It is side surface sectional drawing which shows the ball plunger and the engagement recessed part which position the said movable partial receiving member. It is a side view (partial cross section) which shows the fixed partial receiving member which comprises the said receiving member. It is a figure which shows the circuit board with a heat sink conveyed by the said board | substrate conveyor, FIG. 13 (a) is a top view, FIG.13 (b) is a side view. It is side surface sectional drawing which shows the state by which the said circuit board with a heat sink was pinched | interposed by the raising member and the receiving member. FIG. 15A is a side sectional view showing a state in which the movable partial receiving member is positioned at a retracted position, and FIG. 15A is a view showing a state in which a circuit board is supported by a conveyor belt, and FIG. FIG. 4 is a view showing a state where a circuit board is pushed up by a push-up member. It is a front view which shows each light emission part of the board | substrate carrying-in detector and board | substrate carrying-out detector provided in the edge of each adjacent two board | substrate conveyor among the said some mounting modules. It is a side view which shows the said board | substrate carry-out detector. It is a front view which shows the support part provided in each guide of the said board | substrate carrying-in detector and a board | substrate carrying-out detector. It is a front view which shows the state by which the ionizer was provided in the outer side of the most upstream mounting module among the said several mounting modules. It is a perspective view which shows another receiving member provided in the side frame of a subordinate side among said pair of side frames. It is a figure which shows the state in which another receiving member was attached to each of a pair of said side frames, FIG.21 (a) is a side surface which shows the state by which the movable partial receiving member of the receiving member was moved to the action position. FIG. 21B is a cross-sectional side view showing a state in which it is moved to the retracted position. It is side surface sectional drawing which shows another aspect of the receiving member and guide rail of the said side frame, and is a figure which shows the state which a receiving member is located in an action position. It is side surface sectional drawing which shows the state which the receiving member shown in FIG. 22 is located in a retracted position. FIG. 23 is a front view schematically showing a receiving member and a guide rail shown in FIG. 22. It is a top view which shows the side frame provided with the function to detect holding | maintenance of the circuit board by a raising member and a receiving member. FIG. 26 is a side view (partially cross-sectional view) showing the cutout of the side frame shown in FIG. FIGS. 27A and 27B are diagrams for explaining detection of holding of the circuit board in the side frame shown in FIG. 25. FIG. 27A is a diagram showing a state where the detection member is located at a non-detection position, and FIG. It is a figure which shows the state located in. It is a side frame which is the side frame which comprises the said board | substrate conveyor, Comprising: It is a front view which shows the side frame by which the guide protrusion was provided in the receiving member. It is a side view (partial cross section) showing the side frame shown in FIG. FIG. 30 is a side sectional view showing the inclined guide surface of the receiving member of the side frame shown in FIG. 28, and FIG. 30 (a) is a view showing a state where the receiving member does not receive the circuit board, and FIG. ) Is a diagram showing a state in which the circuit board is received. It is a board | substrate support apparatus which supports a circuit board in the said mounting module, Comprising: It is a front view which shows the board | substrate support apparatus provided with the crack detection function of the circuit board. FIG. 32 is a plan view showing the substrate support apparatus shown in FIG. 31. It is front sectional drawing which shows the crack detection unit of the board | substrate support apparatus shown in FIG. It is a front view which shows the pressing member which presses the circuit board supported by the board | substrate support apparatus shown in FIG. 31 against a receiving member. It is a board | substrate support apparatus which supports a circuit board in the said mounting module, Comprising: It is a front view (partial cross section) which shows the board | substrate support apparatus which supports the circuit board by which the electronic circuit component was mounted | worn on the back surface. It is a side view which shows the board | substrate support apparatus shown in FIG. It is a front view which shows the board | substrate support apparatus which supports a circuit board across two mounting modules adjacent among several mounting modules which comprise the said electronic circuit component mounting system. It is a top view which shows the common support stand attached to the raising / lowering stand of the board | substrate support apparatus shown in FIG. It is front sectional drawing which shows the spring retainer and spring which were attached to the said common support stand. It is a top view which shows the board | substrate carrier supported by the said common support stand and conveying a circuit board. FIG. 41A is a side cross-sectional view illustrating a state in which the substrate carrier is supported by a conveyor belt, and FIG. It is side surface sectional drawing which shows the state in which the carrier and the circuit board were supported by the common support stand.

  Hereinafter, embodiments of the claimable invention will be described with reference to the drawings. In addition to the following examples, the claimable invention can be practiced in various modifications based on the knowledge of those skilled in the art, including the aspects described in the above [Aspect of the Invention] section. .

  FIG. 1 shows the appearance of an electronic circuit component mounting system (hereinafter, abbreviated as “system” unless otherwise specified) as an embodiment. The present system is configured by mounting modules 10 as a plurality of electronic circuit component mounting machines arranged and fixed in a row adjacent to each other on a common base 12.

The mounting module 10 is described in detail in, for example, Japanese Patent Application Laid-Open No. 2004-104075, and parts other than the part relating to the claimable invention will be briefly described.
As shown in FIG. 2, each mounting module 10 includes a module main body 18, a substrate transport device 20, a substrate support device 22, a component supply device 24, a component mounting device 26, and a reference mark imaging provided in the module main body 18. An apparatus (not shown), a component imaging device 28, and a control device 30 are provided.

  2 and 3, the component mounting device 26 includes a mounting head 34 as a work head, and the mounting head 34 in a mounting work area straddling the component supply unit of the component supply device 24 and the substrate transport device 20. And a head moving device 36 that can be moved to an arbitrary position. As shown in FIG. 3, the head moving device 36 includes a Y-axis moving device 40 and an X-axis moving device 42. The X-axis direction is a direction parallel to the direction in which the plurality of mounting modules 10 are arranged, and the Y-axis direction is a direction orthogonal to the X-axis direction in the horizontal plane.

The X-axis moving device 42 is provided on the Y-axis moving device 40, but is moved in the X-axis direction with respect to the Y-axis slide 44 and is relatively moved in the X-axis direction relative to each other. A mounting head 34 provided with shaft slides 46 and 48 and provided on the second X-axis slide 48.
Is movable in a range wider than the width of the module body 18 in the X-axis direction. Accordingly, the mounting work areas of the mounting modules 10 adjacent to each other overlap each other at the end in the X-axis direction.

  The mounting head 34 is held on the second X-axis slide 48 so as to be rotatable around a rotation axis parallel to the Z-axis. The Z axis is a direction parallel to the vertical direction. The mounting head 34 holds a plurality of nozzle holders parallel to the rotation axis on one circumference centered on the rotation axis, respectively, and detachably holds the suction nozzle 50 serving as a component holder. Is lifted and lowered by a lifting device (not shown) at a component suction mounting position set on a circle around the center, and an electronic circuit component is taken out from the component supply device 24 to the suction nozzle 50 and electronic to a circuit board. Have the circuit components installed.

The substrate transfer device 20 will be described.
As shown in FIG. 1, the substrate transport apparatus 20 includes two-lane substrate conveyors 100 and 102 and transports a circuit board in a direction parallel to the X-axis direction. At least one of the substrate conveyors 100 and 102 is used for transporting the circuit board, and the substrate conveyor used in each of the plurality of mounting modules 10 passes through the plurality of mounting modules 10 to the mounting module 10. A substrate conveyor or a substrate conveyor row is carried in and loaded out of the mounting module 10. Since the substrate conveyors 100 and 102 have the same configuration, the substrate conveyor 100 will be described as a representative.

  As shown in FIG. 5, the substrate conveyor 100 has a pair of side frames 110 and 112. These side frames 110 and 112 form a portal shape. On the other hand, here, the side frame 110 on the front side or the front side of the mounting module 10 and close to the component supply device 24 is fixed to the module body 18. The distant side frame 112 is provided so as to be movable in a direction parallel to the substrate transport width direction that is orthogonal to the substrate transport direction, and the distance between the side frames 110 and 112 is based on the position of the side frame 110. The length is adjusted according to the width of the circuit board. Hereinafter, the side frame 110 is referred to as a reference side frame 110 or a fixed side frame 110, and the side frame 112 is referred to as a subordinate side frame 112 or a movable side frame 112, depending on the case.

  The side frames 110 and 112 are configured in the same manner except that the side frame 110 is fixed and the side frame 112 is movable. As shown in FIGS. 4 and 5, the side frames 110 and 112 are provided in parallel with the conveyance direction, respectively. Side plates 116, guide rails 118 provided on the side plates 116, and receiving members 120 provided on the guide rails 118. A driving pulley 122 and a plurality of guide pulleys 124 are horizontally spaced apart from each other on inner surfaces of the side plates 116 of the side frames 110 and 112 that are opposed to each other in a horizontal direction, and are parallel and rotated in a direction perpendicular to the conveying direction. An endless conveyor belt 126 is wound around the pulleys 122 and 124 and is rotated around a closed curve defined by the pulleys 122 and 124. Of the closed curve, the portion between the guide pulleys 124 at both ends in the direction parallel to the transport direction forms a horizontal straight line parallel to the transport direction and corresponds to the straight portion of the conveyor belt 126. The portion with the outer surface facing upward constitutes the transport unit 128. As shown in FIG. 15, the driving pulley 122 is rotated by the belt rotating motor 132 to rotate the conveyor belt 126, and the support surface 131 constituted by the outer surfaces of the pair of conveyor belts 126, as shown in FIG. The side edge portions 130 of the substrate 129 that are parallel to each other are respectively supported and transported. The driving pulley 122, the guide pulley 124, and the belt rotating motor 132 constitute a belt rotating device 134.

Each side plate 116 of the side frames 110 and 112 is also provided with a plurality of support rollers 138 and a plurality of support rails 140 in the substrate conveyor 100, as shown in FIG. As shown in FIGS. 7 and 8, respectively, the conveyance unit 128 is supported from below. The two support rails 140 each extend along the transport unit 128 and are provided at a distance in a direction parallel to the transport direction. A plurality of support rollers 138 are parallel to the rotation axis of the pulleys 122 and 124, respectively, in a portion between the two support rails 140 of the side plate 116 and a portion adjacent to both ends of the row of the two support rails 140. , And is rotatably attached around a rotation axis perpendicular to the transport unit 128.

  Each side plate 116 of the pair of side frames 110 and 112 is provided with a cleaning brush 150, as shown in FIG. The cleaning brush 150 is provided on the lower side of one of the two guide pulleys 124 at both ends so as to contact the support surface 131 of the conveyor belt 126 and removes dust or the like attached to the support surface 131 as the conveyor belt 126 circulates. Dispel.

  Further, as shown in FIG. 5, a push-up member 160 is attached to the side plate 116 so as to be movable up and down. The push-up member 160 has a thin plate shape with a long shape, and the plate surface is provided vertically inside the conveyor belt 126 and in parallel with the transport unit 128, and extends from the carry-in end side to the carry-out end side of the substrate conveyor 100. In a state where a push-up portion 162 is provided and is biased downward by a spring (not shown) disposed between the push-up portion 162 and the lowering limit due to the bias of the spring is defined, The upper end is located slightly below the upper surface of the transport unit 128. In addition, the bolt 164 is screwed to the push-up member 160 so as to protrude downward to constitute a contact portion.

  As shown in FIG. 5, each guide rail 118 of the side frames 110 and 112 is detachably fixed on the side plate 116 so as to cover a part in the width direction of the transport unit 128 in the transport direction. As shown in FIG. 15, the vertical end surface perpendicular to the conveying portion 128 of the upward projecting portion constitutes a guide surface 180 that guides the side edge 178 of the circuit board 129, and the guide surface 180 of each guide rail 118. Are facing each other.

As shown in FIG. 5, the receiving members 120 of the side frames 110 and 112 are respectively provided on the guide rail 118 and provided above the transport unit 128. These receiving members 120 are similarly configured, and the receiving member 120 of the reference side frame 110 will be described as a representative.
As shown in FIG. 6, the receiving member 120 is divided into three partial receiving members 200, 202, and 204. Among these partial receiving members 200, 202, 204, the middle partial receiving member 202 is longer than the maximum length in the direction parallel to the conveying direction of all types of circuit boards on which electronic circuit components are scheduled to be mounted. A drooping portion 210 (see FIG. 5) is formed on the guide rail 118 in parallel with the transport unit 128 and hangs downward from the end edge on the conveyor belt 126 side which is a free end thereof. The movable receiving member is provided so as to be movable in a direction perpendicular to the conveying direction.

As shown in FIG. 5 and FIG. 9A, the partial receiving member 202 is provided with a plurality of notches 212 that cross the hanging portion 210 at right angles, and the partial receiving member 202 is provided at equal intervals. The hanging portion 210 is a plurality of partially hanging portions 214. 9B, the guide surface 180 of the guide rail 118 is opened to the upper surface of the guide rail 118 and the guide surface 180, and a plurality of housings for housing each of the plurality of partial hanging portions 214 are accommodated. As shown in FIG. 11, the concave portion 216 is formed, and the partial receiving member 202 acts as shown in FIGS. 9 (c) and 15 in which the partial hanging portion 214 opposes the push-up member 160. It retracts from the position and is moved to the retracted position accommodated in the accommodating recess 216. A set of downward surfaces facing the push-up member 160 of each of the plurality of partial hanging portions 214 constitutes a receiving surface 218.

  As shown in FIG. 6, elongated holes 220 extending in a direction perpendicular to the transport direction are formed at a plurality of locations separated in a direction parallel to the transport direction at the proximal end portion of the partial receiving member 202, and the male screw member 222. Passes through the long hole 220 and is screwed into a female screw hole 224 formed in the upper surface 223 of the guide rail 118. As shown in FIG. 10, the male screw member 222 is a stepped screw including a male screw portion 228, a shaft portion 230, and a head portion 232, and the long hole 220 has a stepped shape. The shaft part 230 has a larger diameter than the male screw part 228 and a length that is slightly longer than the depth of the small long hole part 234 of the long hole 230. Therefore, in a state where the male screw portion 228 is firmly tightened in the female screw hole 224, a gap slightly larger than the thickness of the peripheral portion of the small elongated hole portion 234 is secured between the head 232 and the upper surface 223, and the partial receiving member 202 is sandwiched between the head 232 and the upper surface 223 so as to allow movement to the operating position and the retracted position.

  As shown in FIGS. 6 and 11, the partial receiving member 202 is moved and retracted by a ball plunger 240 provided on the guide rail 118 and two engaging recesses 242 and 244 provided on the partial receiving member 202. Position. In the substrate conveyor 100, a plurality of position holding portions including the ball plunger 240 and the engagement concave portions 242 and 244 are provided at two locations separated in the transport direction or the longitudinal direction of the receiving member 200.

  As shown in FIG. 11, the ball plunger 240 is movably provided in the casing 246 and protrudes from the casing 246 and from the upper surface 223 of the guide rail 118. A spring (not shown) which is an elastic member which is a kind of biasing device biasing in the direction. The engaging recesses 242 and 244 have a conical shape and are provided at a distance in a direction perpendicular to the conveying direction, and the balls 248 are selectively fitted into the engaging recesses 242 and 244, whereby the partial receiving member 202. Are positioned at the operating position and the retracted position, respectively. The retracted position of the partial receiving member 202 is set to a position where the partial hanging portion 214 is slightly retracted from the guide surface 180 of the guide rail 118 into the accommodating recess 216 within an error range.

  As shown in FIG. 6, each of the partial receiving members 200 and 204 on both sides of the partial receiving member 202 is a fixed receiving member fixed to the guide rail 118 by a bolt 260 which is a kind of fixing device. . The partial receiving members 200 and 204 are not provided with a hanging portion, and as shown in FIG. 12, a downward surface that protrudes from the guide rail 118 onto the push-up member 160 and faces the push-up member 160 constitutes a receiving surface 262. doing.

  The electronic circuit component is mounted on the circuit board. The upper surface of the circuit board is located at a predetermined reference height, the upper surface reference is based on the component mounting surface, and the circuit board push-up member. The lower surface pushed up by 160 is positioned at the reference height, and is performed in one of two types of modes: a lower surface reference with the lower surface as a reference. In the mounting module 10, the reference height is a height of a plane including the upper surface 223 of the guide rail 118. The lower surface of the portion where the hanging portion 210 of the partial receiving member 202 is not suspended and the receiving surfaces 262 of the partial receiving members 200 and 204 are positioned at the reference height.

The hanging portion 210 of the partial receiving member 202 has a step on the upper surface, like the circuit board 264 with a heat sink illustrated in FIGS. 13A and 13B, and the component mounting surface 266 is a conveying portion of the conveyor belt 126. 128 is provided on the upper surface of the side edge portion 268 that is a transported portion supported by 128 and is higher than the receiving surface 270 received by the receiving member 120 for mounting electronic circuit components on the upper surface basis. Yes. The circuit board 264 with a heat sink includes a heat sink 272 and a board 274 provided on the heat sink 272, and the side edge 268 of the heat sink 272 is supported by the transport unit 128. What is attached to the circuit board such as the heat sink 272 is also regarded as a part of the circuit board. Accordingly, although the heat sink 272 is directly supported by the transport unit 128, the support is the support of the circuit board. Since the circuit board 264 with a heat sink supported by the transport unit 128 has the component mounting surface 266 located above the receiving surface 270, the receiving surface 270 is required to position the component mounting surface 266 at the reference height. It is necessary to be received by the receiving member 120 below the reference height, and for that purpose, a hanging portion 210 is provided, and the hanging length of the hanging portion 210 (the protruding length from the lower surface of the partial receiving member 202) is component mounting. The length is equal to the height difference between the surface 266 and the receiving surface 270. In addition, as shown in FIG. 13A, the circuit board 264 with a heat sink has a length in a direction parallel to the transport direction of the supported part 276 supported by the transport unit 128 as compared with the length of the entire circuit board 264 with a heat sink. Short, shorter than the distance between the conveying portions 128 of the substrate conveyors 100 of the two adjacent mounting modules 10, the side edge portion 268 is provided with supported portions 276 at two locations separated in the conveying direction.

  As shown for each of the substrate conveyors 100 of the two mounting modules 10 adjacent to FIG. 16, a substrate carry-in detector 280 is attached to the end surface on the carry-in side of the substrate conveyor 100, and the substrate is placed on the end surface on the carry-out side. A carry-out detector 282 is attached. Each of these detectors 280 and 282 is configured by a transmissive sensor as a photoelectric sensor which is a kind of non-contact type sensor. As shown in FIG. 17, the substrate carry-out detector 282 is provided on each of the side frames 110 and 112. A light emitting unit 284 and a light receiving unit 286 provided opposite to each other are provided, and the circuit board is detected by preventing the light receiving unit 286 from receiving light.

  As shown in FIG. 17, the board carry-out detector 282 is provided such that the light emitting part 284 is located above the circuit board carried by the carrying part 128 and the light receiving part 286 is located below the circuit board. Yes. In the substrate carry-in detector 280, the light emitting unit 284 is disposed on the same side as the light emitting unit 284 of the substrate carry-out detector 282 in the direction perpendicular to the substrate carrying direction, but the light receiving unit 286 emits light. The light receiving unit 286 is provided above the circuit board, and the light emitting unit 284 is provided below the circuit board. Therefore, the substrate detection range by the detectors 280 and 282 is widened compared with the case where the light emitting unit 284 and the light receiving unit 286 are provided at the same height, and the detection accuracy of the circuit board is improved. Further, the detectors provided in the two adjacent mounting modules 10 are respectively opposite to each other in the vertical direction in the substrate carry-in detector 280 and the substrate carry-out detector 282, and the light receiving unit 286 is adjacent. It is avoided that the light emitted from the light emitting unit is erroneously received. The light-emitting part of the substrate carry-in detector and the light-emitting part of the substrate carry-out detector are provided on different sides in the direction perpendicular to the substrate carrying direction, and both are located above the light receiving part and above the circuit board. They may be provided at the positions below the light receiving portion and below the circuit board.

  The light emitting units 284 and the light receiving units 286 of the detectors 280 and 282 are protected by guides 300 and 302, respectively. As shown for each light emitting portion 284 of the detectors 280 and 282 in FIG. 16, the guide 300 is located on the end face of the side frames 110 and 112, outside the light emitting portion 284 (on the opposite side to the side frames 110 and 112). As shown in FIG. 17, both end portions in the direction orthogonal to the conveyance direction are inclined toward the side frames 110 and 112 as they are separated from each other, as shown in FIG. , 306 are provided. The same applies to the guide 302. Therefore, when the mounting module 10 is moved relative to another member in a direction orthogonal to the transport direction, the member is guided by the guide portions 304 and 306 and moves outside the guides 300 and 302, and the detectors 280 and 282 are detected. Interfering with is avoided.

As shown in FIGS. 16 and 17, the guides 300 and 302 are opposed to the conveyor belt 126 in the horizontal direction and the vertical direction orthogonal to the conveyance direction, and are in contact with the conveyance unit 128 (see FIG. 16). The support portion 310 is provided so as to extend to a position 0.5 mm below, and the guides 300 and 302 function as additional support members that support the circuit board conveyed by the conveyor belt 126 from below. ing. The upper end of the additional support member is positioned at a position below the tangential plane and does not hinder the conveyance of the circuit board, and is located at a position close to the tangential plane to support the circuit board in substantially the same manner as the conveyance unit to prevent the fall. What is necessary is just to be located below the distance of 1 mm or less of a tangent plane. As shown in FIG. 18, the upper end surface of the support portion 310 is rounded 312 at the upstream end portion and the downstream end portion in the transport direction, and guides the side end portion of the circuit board. Part. The guide portion may be configured by chamfering. The guide part should just be provided in the edge part of the upstream in the conveyance direction at least of a support part. Note that the additional support member may have an operation state in which the circuit board can be supported from below and a non-operation state in which the circuit board cannot be supported from below. The additional support member may be lowered from the operating position to be in a non-operating state, or may be removed to be in a non-operating state. The additional support member may be lowered manually or automatically by a moving device.

The substrate support device 22 will be described.
As shown in FIG. 15, the substrate support device 22 includes a support base 320 and at least one support member 322 that is detachably mounted on the support base 320, and is lifted and lowered by a substrate support device lifting device 324. The support base 320 has a size that can be used to support a plurality of types of circuit boards having different sizes. There are various types of support members that support the circuit board, but the support member 322 is a holding-type support member that sucks and holds the circuit board by negative pressure.

  The support member 322 includes a pedestal 326, a support pin 328 erected on the pedestal 326, and a rubber vacuum cup 332 provided so as to surround the substrate support surface 330 constituted by the upper end surface of the support pin 328. The vacuum cup 332 adsorbs the circuit board by the negative pressure supplied to the substrate support surface 330 and supports it on the substrate support surface 330. The pedestal 326 is detachably fixed to the support base 320 when the bolt 334 is screwed into one of a plurality of female screw holes (not shown) formed in the support base 320, and the substrate support surface 330 is fixed. It fixes in the state located in the position corresponding to the to-be-supported location of the back surface of a circuit board.

  As shown in FIG. 15, the substrate support apparatus elevating apparatus 324 includes an elevating base 350 serving as an elevating member and an air cylinder 352 serving as an elevating member driving apparatus. It is moved up and down while being guided by. The air cylinder is a fluid pressure cylinder that is a kind of drive source and a kind of fluid pressure actuator. The lifting platform 350 has a plate shape, the support table 320 is detachably fixed thereon, and the substrate support device 22 is set.

  The support base 320 of the substrate support device 22 is not provided with support members 322 at both ends separated in the transport direction, and is vacant, and each is provided with an ionizer 370 (see FIG. 5, one of which is shown in FIG. 5). Only the ionizer 370 is shown). The ionizer 370 performs high-frequency AC discharge, and the nozzle 372 alternately discharges air containing positive ions and air containing negative ions at a high speed. The angle of the nozzle 372 can be adjusted, and air containing ions is ejected from below toward the circuit board. As shown in FIG. 19, an ionizer 374 is also attached to the outer surface of the module body 18 of the mounting module 10 that is the most upstream in the transport direction among the plurality of mounting modules 10. The ionizer 374 is configured in the same manner as the ionizer 370, is provided above the substrate conveyors 100 and 102, and injects air containing ions from above the circuit board toward the circuit board. An ionizer may be attached to the outer surface of the mounting module 10 on the most downstream side in the transport direction.

The control device 30 is mainly composed of a computer and controls various devices constituting the mounting module 10. Of these devices, the electric motor constituting many of the drive sources is constituted by a servo motor with an encoder, and the position control accuracy of the movable member is high. The computers of the control devices 30 of the plurality of mounting modules 10 are connected to each other via a communication cable so as to exchange data.

  A case will be described in which an electronic circuit component is mounted on the circuit board 264 with a heat sink (hereinafter abbreviated as a circuit board 264), for example, by the system configured as described above. In addition, one of the two substrate conveyors 100 and 102, for example, only the substrate conveyor 100 is used. In the substrate conveyor 100, the partial receiving member 202 is positioned at the operating position in each receiving member 120 of the pair of side frames 110 and 112. Further, since the circuit board 264 is thick and has no fear of bending, support from below is unnecessary, and the support member 322 is not attached to the support base 320.

  As shown in FIG. 5, the circuit board 264 has two supported portions 276 on the both side edge portions thereof supported by the conveying portions 128 of the pair of conveyor belts 126, and is conveyed by the circulation of the conveyor belt 126. The When the circuit board 264 is carried into the mounting module 10 on the most upstream side, the ionizer 374 jets air containing ions from above onto the circuit board 264, and static electricity on the circuit board 264 is removed.

  The conveyance of the circuit board 264 is stopped in a state where the circuit board 264 is moved by a predetermined distance after the board carry-in detector 280 detects the passage of the upstream edge in the conveyance direction of the circuit board 264. The conveyor belt 126 is supported by the support roller 138 and the support rail 140 and circulates to obtain an appropriate frictional force between the transport unit 128 and the support rail 140 and between the circuit board 264 and the transport unit 128. The stop is accurately performed at the set stop position, and air containing ions is jetted from below by the ionizer 370, and static electricity on the circuit board 264 is removed. After the stop, the support base 320 is raised by the substrate support device lifting / lowering device 324 and comes into contact with the bolt 164 of the push-up member 160 to raise the push-up member 160. In a state where the support base 320 is fixed to the lift base 350, it constitutes a lift member together with the lift base 350, and the substrate support apparatus lift device 324 raises the push-up member 160. The push-up member 160 supports the lower surface of the supported portion 276 of the circuit board 264 supported by the conveying portion 128 and floats up from the conveying portion 128, and the supported portion 276 is part of the partial receiving member 202 as shown in FIG. It is raised to a position where it is pressed against the drooping portion 214. The lifting member 160 can also be considered as a pressing member. The partial receiving member 202 receives the supported portion 276 of the circuit board 264 and sandwiches the supported portion 276 in cooperation with the push-up member 160. In this state, the component mounting surface 266 of the circuit board 264 is positioned at the reference height, and the elevation of the nozzle holder is controlled so that the electronic circuit component is mounted on the component mounting surface 266. The mounting of electronic circuit components onto a circuit board by the mounting head 34 is known from Japanese Patent Application Laid-Open No. 2004-104075 and the like, and the description thereof is omitted.

  After the mounting of the electronic circuit components on the circuit board 264 is completed, the support base 320 is lowered, the push-up member 160 is lowered by the bias of the spring, and the supported part 276 of the circuit board 264 is placed on the transport unit 128. Then, the circuit board 264 is carried out. Although the dimension of the supported part 276 in the direction parallel to the conveying direction is short, the supported part 276 is supported from below by the two support parts 310 provided between the substrate conveyors 100 of the adjacent mounting modules 10. Therefore, the circuit board 264 can move between the adjacent conveyance sections 128 without lowering the tip end (the end on the downstream side in the conveyance direction). At this time, the supported portion 276 is guided onto the support portion 310 by the rounding 312 and the lowering of the front end portion of the circuit board is more reliably prevented. When it is necessary to remove the circuit board from the mounting module 10 for some reason after the start of the electronic circuit component mounting work on the circuit board, the operator moves the partial receiving member 202 of the reference side frame 110 to the retracted position. The circuit board 264 can be taken out by retracting and releasing the clamp of the circuit board 264.

  When mounting electronic circuit components on a circuit board having no step on the upper surface, such as the circuit board 129 shown in FIG. 15, the changeover is performed, and the partial receiving member 202 is retracted to the retracted position so that the partial hanging part is lowered. 214 is housed in the housing recess 216, and the support member 322 is attached to the support base 320. When the circuit board 129 is carried in by the board conveyor 100 and stopped at a predetermined position, the support base 320 is raised, the push-up member 160 is raised, and the circuit board 129 is pushed up from the transport unit 128. The raising of the push-up member 160 is defined by contacting the receiving surfaces 262 of the partial receiving members 200 and 204, and is raised to a higher position than when the circuit board 264 is pushed up. The receiving surface 262 is positioned at the reference height, and the lower surface of the circuit board 129 is positioned at the reference height. Further, the substrate support surface 330 of the support member 322 is positioned at the reference height, and the circuit board 129 is adsorbed by the vacuum cup 332 by the negative pressure supplied to the substrate support surface 330 and pressed against the substrate support surface 330. The lower surface is kept at the reference height. When the mounting head 34 mounts an electronic circuit component on the circuit board 129, the lifting and lowering of the nozzle holder is controlled in consideration of the fact that the component mounting surface 412 is positioned above the reference height by the thickness of the circuit board 129. The electronic circuit component can be mounted by the nozzle 50 without any trouble. The electronic circuit component can be mounted on the circuit board in two ways by the single receiving member 120.

  After completion of the mounting of the electronic circuit components on the circuit board 129, the support base 320 is lowered, the push-up member 160 is lowered, and the circuit board 129 is lowered. The circuit board 129 is guided from the beginning of the descent by the portion positioned between the plurality of partial hanging portions 214 of the guide surface 180, and is caught in the gap between the receiving surface 218 of the partial hanging portion 214 and the bottom surface of the receiving recess 216. Without being lowered. After the circuit board 129 is positioned below the reference height, the negative pressure supply to the support member 322 is interrupted and the circuit board 129 is opened before being placed on the transport unit 128. , And are carried out by being supported by the transport unit 128.

  As the receiving member of the circuit board 264, a member having a long hanging part 432 extending in the transport direction without a notch can be used as in the receiving member 430 shown in FIG. When the electronic circuit component is mounted on the upper surface, the receiving member 430 has one of the pair of side frames 110, 112, for example, the guide rail 118 of the dependent side frame 112, and the hanging portion 432 is pushed up. It is fixed in a state of facing. When mounting electronic circuit components on the basis of the lower surface, the receiving member 430 is replaced with a receiving member that does not have a hanging portion. The receiving member is divided into three parts, for example, and the partial receiving members at both ends are fixed to the guide rail 118 in a state of facing the push-up member 160, and the upper limit of the push-up member 160 is defined. The receiving member is fixed to the guide rail 118 in a state where a vertical end surface parallel to the conveyance direction is located in the same plane as the guide surface 180, and allows the circuit board to be raised and lowered. By providing the receiving member 120 on the side of the reference side frame 110, the circuit board can be taken out by retracting the partial receiving member 202 to the retracted position as necessary during mounting of the electronic circuit component with respect to the upper surface.

If the receiving member 450 shown in FIG. 21 is used, the heights of the component mounting surface and the receiving surface are the same in the state of being supported by the conveyor belt 126, and depending on the type of circuit boards located in the same plane, Thus, the electronic circuit component can be mounted in either one of the two modes of the upper surface reference and the lower surface reference. The receiving member 450 is divided into three parts like the receiving member 120, and the middle partial receiving member 452 of the three partial receiving members is arranged on the guide rail 118 like the partial receiving member 202 of the receiving member 120. As shown in FIG. 21 (a), the circuit board 460, which is mounted so as to be movable in the direction perpendicular to the conveying direction and on which the electronic circuit components are mounted, is combined with the push-up member 160 as shown in FIG. With respect to the circuit board 462 that is positioned at the working position that sandwiches the side edge portion of the 460, and on which the electronic circuit components are mounted on the lower surface, as shown in FIG. Are retracted to a retracted position where the side edge portions of the two are not sandwiched. Although the partial receiving members at both ends are not shown, they are fixed at the operation positions.

  The guide rail 470 and the receiving member 472 shown in FIGS. 22 to 24 can also be used. The guide rail 470 is provided such that the upper surfaces of both end portions 474 and 476 in the direction parallel to the conveying direction are positioned at the reference height, and the upper surface of the center portion 478 is positioned at a position higher than the reference height. A plurality of receiving recesses 482 that open to the guide surface 480 and the upper surface and have a depth that is lower than the reference height are provided in the 478 at a distance in the transport direction. The receiving member 472 is divided into three parts, and among the three partial receiving members 486, 488, 490, the partial receiving members 486, 490 on both sides face the push-up member 160 on both end portions 474, 476 of the receiving member 472. The central partial receiving member 488 is provided on the central portion 478 so as to be movable in a direction perpendicular to the conveying direction, and a hanging portion 492 hanging downward from its free edge is provided. 494 is formed, and a plurality of partially suspended portions 496 are formed.

  When receiving the circuit board 264 with the heat sink, the receiving member 472 is positioned at the working position as shown in FIG. 22, and when receiving the circuit board 129, the receiving member 472 is positioned at the retracted position as shown in FIG. 496 is received in the receiving recess 482. Since the central portion 478 of the guide rail 470 is made higher than the reference height and the guide surface 480 is above the reference height, the circuit board 129 is always guided by the guide surface 480 as schematically shown in FIG. Deviation in the direction perpendicular to the angle is more reliably prevented. As shown in FIG. 21, for the receiving member that receives the circuit board at the reference height when the electronic circuit component is mounted on the upper surface, similarly, there is a guide surface above the reference height for a part of the guide rail, It is good also as what has an accommodation recessed part and can move a part of receiving member to an action position and a retracted position by having a partial hanging part.

  As shown in FIGS. 25 to 27, the movement of the circuit board is guided by the guide / receiving member 500 having a function of detecting that the side edge of the circuit board is fixed, and the side edge is held. You can also. 25 and 27, the guide / receiving member 500 includes a guide rail portion 504 provided with a vertical guide surface 502, and a receiving portion 506 projected from the guide rail portion 504 onto the push-up member 160. And is detachably fixed to the side plate 116 of the dependent side frame 112.

  25 and 26, a detection member 510 is attached to the guide / receiving member 500 by a shaft 512 so as to be rotatable about an axis parallel to the transport direction. The detection member 510 is accommodated in a recess 514 provided in the guide / receiving member 500, and at least one of the detection members 510 is provided with a plurality of contacts 516 at a distance in the conveyance direction, and the receiving portion 506. In the present detection member 510, at least a part of the detection member 510 is disposed in a notch 518 formed so as to penetrate in a direction perpendicular to the conveyance direction. The bottom surface 520 of the notch 518 is located below the receiving surface 522 of the receiving portion 506 as shown in FIG.

As shown in FIG. 27, the detection member 510 is provided with a lever 530 in a direction opposite to the contact 516 and extending to the outside of the side frame 112, and a dog 532 is provided at the lower end thereof. The plurality of contacts 516 can be integrally rotated. The dog 532 constitutes a detected portion, and the distance from the rotation axis to the dog 532 is larger than the distance from the rotation axis of the detection member 510 to the lower end of the tip of the contact 516, and the contact The rotation of 516 is enlarged and obtained in the dog 532. The detection member 510 has a direction in which the tip of the contact 516 is directed downward and toward the push-up member 160 by a spring 534 as an elastic member which is a kind of urging device disposed between the lever 530 and the side plate 116. Is being energized. The rotation of the detection member 510 due to the bias of the spring 534 is as shown in FIG.
The contact 516 is defined by contacting the bottom surface 520 of the notch 518, and in that state,
The lower end of the tip of the contact 516 is positioned below the receiving surface 522, and the dog 532 is detached from the sensor 536 attached to the side plate 116. The sensor 536 is, for example, a reflective photoelectric sensor which is a kind of non-contact type sensor, and constitutes a sensor unit. As shown in FIGS. 26 and 27B, the lower end of the contact 516 is a receiving surface 522. , The dog 532 is detected by the sensor 536. Although not shown, the reference side frame 110 is provided with the receiving member 450, for example.

In a state where the guide / receiving member 500 and the push-up member 160 do not hold the circuit board 540, the detection member 510 has the lower end of the contact 516 positioned below the receiving surface 522 as shown in FIG. As the side edge portion of the circuit board 540 is pushed up by the push-up member 160, the detection member 510 is rotated against the biasing force of the spring 534 by the side edge portion. As shown in FIG. 27 (b), the contact 5
The lower end of 16 is rotated to the position of the receiving surface 522. In this state, the detection member 510 reaches the detection position, the dog 532 is detected by the sensor 536, and it is detected that the side edge portion of the circuit board 540 is sandwiched between the push-up member 160 and the receiving portion 506. The lift of the lifting platform of the substrate support lifting device is stopped. The detection member 510, the sensor 536, and the spring 534 constitute a substrate fixing detection device 542. Since the contactor 516 and the receiving surface 522 are located at a plurality of positions separated in the transport direction, any of a plurality of types of circuit boards having different dimensions in the direction parallel to the transport direction is received by the receiving surface 522 and the contactor 516. The detection member 510 can be rotated in contact with the contact, and the fixation by the receiving portion 506 and the push-up member 160 is detected.

  As shown in FIGS. 28 to 30, a receiving member 570 having a function of correcting the warp of the circuit board can be attached to each of the pair of guide rails 118 to receive the circuit board. The receiving member 570 does not have a hanging portion, for example, is divided into three partial receiving members 572, 574, and 576 similarly to the receiving member 450, and the partial receiving members 572 and 576 on both sides are fixed to the guide rail 118, The middle partial receiving member 574 is held by the guide rail 118 so as to be movable between the operating position and the retracted position. As shown in FIG. 28, the upstream portion receiving member 572 in the conveying direction is provided with a guide protrusion 580 at a portion facing the upstream end of the conveying portion 128 of the conveyor belt 126, and the downstream portion. The receiving member 580 is provided with a guide protrusion 582 at a portion facing the downstream end of the transport unit 128, and the guide protrusions 580 and 582 constitute a guide part. Each of the guide protrusions 580 and 582 includes a guide surface 584 that is inclined in a direction asymptotically linearly approaching the transport unit 128 from the upstream side to the downstream side in the transport direction, and the transport unit 128 from the downstream side to the upstream side. And a guide surface 586 that is inclined in a direction asymptotic to a straight line. Further, the protruding end portions of the guide protrusions 580 and 582 are partially spherical rounded portions 588 as shown in FIG. As described above, the substrate carry-in detector 280 and the substrate carry-out detector 282 provided on both sides in the carrying direction of the substrate conveyor 100 are located at positions adjacent to the guide protrusions 580 and 582 in the carrying direction.

In the state where the middle partial receiving member 574 is located, it extends from the guide rail 118 in a cantilevered manner above the conveying portion 128, and is constituted by a front end portion or a lower surface of the extending portion 590 that receives the side edge portion of the circuit board. As shown in FIG. 30 (a), the receiving surface 592 is raised from the distal end portion or free end portion side of the partial receiving member 574 toward the proximal end portion held by the guide rail 118. It is tilted. This inclination angle is set to 2 degrees in the partial receiving member 574.

When the circuit board is warped and the side edge portion is lifted from the transport unit 128, the guide projections 580 and 582 and the transport unit 128 are guided by the guide surface 584 when passing through the guide projections 580 and 582 during transport. As shown in FIG. 29, it is brought close to the transport unit 128. The circuit board may be brought into contact with the transport unit 128, and the side edge of the circuit board is substantially parallel to the transport unit 128 before and after the guide protrusions 580 and 582 in the transport direction. In addition, the detection areas of the detectors 280 and 282 are wide in the vertical direction, and the stop position of the circuit board is accurately controlled based on the detection of the upstream end in the circuit board transport direction by the board carry-in detector 280. Then, the circuit board unloading detector 282 reliably detects the circuit board unloading based on the detection of the downstream end of the circuit board. The positions of the guide protrusions 580 and 582 with respect to the detectors 280 and 282 in the conveying direction are set to positions where the side edges of the circuit board pass through the detection region in a state as horizontal as possible. Since the guide protrusions 580 and 582 have guide surfaces 584 and 586 on both sides in the circuit board transport direction, respectively, the side edges of the guide protrusions 580 and 582 can be moved in either the forward or reverse direction. Can lead to between. Alternatively, the guide rail 118 can be shared by the pair of side frames 110 and 112. Only the guide surface 584 may be provided on the guide protrusions 580 and 582.

As shown in FIG. 30B, when the circuit board 594 is pushed up by the push-up member 160 and is sandwiched between the receiving surface 592 of the partial receiving member 574 located at the operating position, the partial receiving member 574 is movable. Since it is provided and there is a gap between it and the guide rail 118, it is pushed by the push-up member 160 to slightly rotate the extension portion 590, and is lifted with respect to the base end portion so that it is not horizontal. However, since the receiving surface 592 is an inclined surface, the receiving surface 592 is horizontal in a state in which the extended portion 590 is lifted, the side edge of the circuit board 594 is pressed horizontally, and the circuit board 594 is in a horizontal posture. Held in.

  When the circuit board on which the electronic circuit component is mounted is a brittle board such as a ceramic circuit board, the circuit board breakage is detected by using the board support device 600 shown in FIGS. be able to. As shown in FIG. 31, the substrate support device 600 includes a support base 602, a support member 604 that can be moved up and down on the support base 602, and a lift device 606 that lifts and lowers the support member 604 on the support base 602. In addition, the support base 602 is attached to the lift base 350 of the substrate support apparatus lift 324.

  The support member 604 is a soft support member made of sponge, which is a kind of foam material, and has substantially the same size as the circuit board to be supported, the lower end surface side is held by the back plate 610, and the upper end surface is the support surface 612. Is configured. The lifting device 606 is composed of an air cylinder 614, and the support member 604 is lifted and lowered while being guided by the guide device 620 including the guide rod 618 by the expansion and contraction of the piston rod 616. The air pressure supplied to the air cylinder 614 is controlled by a regulator (not shown) as a pressure control device, and the support force of the circuit board by the support member 604 is changed. 32 and 33, the support member 604 is provided with a plurality of, for example, three or more crack detection units 630 for detecting cracks in the circuit board, and three in the substrate support apparatus 600. As shown in FIG. 33, the unit main body 632 of the crack detection unit 630 is detachably fixed to the lower surface of the back plate 610, and the holder 636 is fitted in a bottomed hole 634 formed to open on the upper surface. At the same time, a pin 638 as a detector is fitted in the holder 636, and is detachably fixed by a screw 640. When the pin 638 is worn, it can be replaced with a pin 638 having no wear.

As shown in FIG. 33, the pin 638 is fitted into a through-hole 642 formed through the support member 604 and the back plate 610 in the thickness direction so as to be relatively movable in the vertical direction. The holder 636 is urged in a direction in which the pin 638 protrudes upward from the support plane including the support surface 612 by a spring 644 which is a detector urging device disposed between the bottom surface of the bottomed hole 634. In the state where the rise of the holder 636 due to the bias of the spring 644 is defined by the shoulder surface 646 coming into contact with the back plate 610, the pin 638 protrudes upward from the support plane at the tip or upper end. Located in the protruding position. Further, as indicated by a two-dot chain line, the pin 638 descends against the urging force of the spring 644 via the holder 636, and the tip or upper end of the pin 638 is retracted into the through hole 642 and includes a support surface 612. It is possible to move to the retracting position located at the following position. The pin 638 is biased by the spring 644 in the direction from the retracted position to the protruding position.

  As shown in FIG. 33, a sensor 650 as a protrusion detector is attached to the unit main body 634 in a direction perpendicular to the axis of the pin 638. In the substrate support apparatus 600, the sensor 650 is a proximity sensor that is a kind of non-contact type sensor. The holder 636 is provided with an annular groove 652 that is opened on the outer peripheral surface thereof to constitute a detected portion. When the pin 638 is located at the protruding position, the groove 652 is formed as shown by a solid line in FIG. When the pin 638 is positioned at the retracted position when facing the sensor 650, the portion where the groove 652 is detached from the sensor 650 and the groove 652 of the holder 636 is not formed is aligned with the sensor 650 as indicated by a two-dot chain line. In each state, the sensor 650 outputs a different signal to the computer of the control device 30. As shown in FIG. 32, the three crack detection units 630 are each mounted with a circuit board electronic circuit component supported by the board support device 600 in a direction parallel to and perpendicular to the transport direction which is the horizontal direction. In the component mounting surface which is a work surface, the respective positions in the direction perpendicular to the side edge portion are provided at three positions different from each other.

  Also, as shown in FIG. 34, the pressing member 660 is divided into three parts in a direction parallel to the conveying direction. Of the divided pressing members 662, 664, 666, the divided pressing members 662, 666 on both sides are connected by a connecting member 668. The middle divided pressing member 664 is connected to the connecting member 668 so as to be movable up and down. The divided pressing member 664 is biased upward with respect to the connecting member 668 by a spring 670 that is a pressing member biasing device disposed between the split pressing member 664 and the connecting member 668. The divided pressing member 664 is fitted between the elongated hole 672 provided in the vertical direction in the connecting member 668 and constituting the engaging recess, and the screw member 674 provided horizontally in the divided pressing member 664 and constituting the engaging protrusion. Accordingly, the connecting member 668 is held so as to be relatively movable in the vertical direction, and the engagement of the screw member 674 with the upper end surface of the elongated hole 672 defines the movement of the divided pressing member 664 by the bias of the spring 670. In the state where the movement is defined, the upper ends of the divided pressing members 662, 664 and 666 are positioned at the same height. In addition, a bolt 676 is screwed downward at a position corresponding to each of the divided pressing members 662 and 666 to the connecting member 668 to constitute a contact portion. Further, the receiving member 680 is configured in the same manner as the receiving member 450, and the partial receiving members 682 and 684 on both sides are fixed to the guide rail 118 so as to face the divided pressing members 662 and 666, and the partial receiving member 686 in the middle. Is provided on the guide rail 118 so as to be movable in a direction perpendicular to the conveying direction, and is moved between the operating position and the retracted position.

  The support base 602 and the like are raised from the retracted position by the substrate support device lifting device 324 after the ceramic brittle substrate 688 (see FIG. 33) is carried in. When rising, the support base 602 contacts the bolt 676 and raises the connecting member 668 to raise the pressing members 662, 664 and 666, and lifts the brittle substrate 688 from the conveyor belt 126. The pressing members 662, 664, and 666 are also lifting members. The support base 602 is further raised from a state in which the receiving surface 690 of the partial receiving member 686 is in contact with the upper surface of the brittle substrate 688, receives the side edge of the brittle substrate 688, and sandwiches the brittle substrate 688 together with the partial pressing member 664. The connecting member 668 moves upward relative to the partial pressing member 664 while compressing the spring 670. The connecting member 668 is raised until the partial pressing members 662 and 666 abut on the partial receiving members 682 and 684. In this state, the pin 638 is positioned below the back surface of the brittle substrate 688, and after the pressing member 660 is lifted, the support member 604 is lifted by the lifting device 606. At this time, first, as shown by a solid line in FIG. 33, the pin 638 comes into contact with the brittle substrate 688 to stop the rise, and then the support member 604 further rises with respect to the pin 638 while compressing the spring 644, The pin 638 is pushed by the brittle substrate 688 to be in the retracted position as indicated by a two-dot chain line, and the support surface 612 is located at the support position above the retracted position and is in surface contact with the lower surface of the brittle substrate 688, A brittle substrate 688 is supported.

The elevating device 606 operates based on the pin 638 positioned at the retracted position, disengaged from the groove 634 of the holder 636, and the detection signal of the sensor 650 changing from the protruding position detection signal to the retracted position detection signal. If the supporting member 604 is stopped and supports the brittle substrate 688 with a predetermined pressure, but the brittle substrate 688 may be broken by an impact when being pressed against the partial receiving member 684 by the pressing member 660, the pin 638 is It is not pushed by 688 and remains in the protruding position, and the signal does not change. Therefore, for example, the time from when the support member 604 starts to rise is measured, and even if the set time has elapsed and the time for the support member 604 to support the brittle substrate 688 has elapsed, the protruding position detection signal is output. If it is, it is determined that the brittle substrate 688 is cracked. Even when the brittle substrate 688 is supported by the support member 604 without being cracked and the pin 638 is in the retracted position, if the brittle substrate is cracked during mounting of the electronic circuit component, the pin 638 is caused by the brittle substrate 688. Since it is not pushed and moves to the protruding position by the bias of the spring 644, the groove 634 of the holder 636 faces the sensor 650, and the output signal of the sensor 650 changes from the retracted position detection signal to the protruding position detection signal, so that it is brittle It is determined that the substrate 688 is cracked. Based on the determination of the crack of the brittle substrate 688, for example, the mounting operation of the electronic circuit component by the mounting head 34 is stopped, and the suction nozzle 50 is prevented from being caught by the cracked circuit substrate and being damaged.
The substrate support device elevating device 324 and the elevating device 606 constitute an elevating device, the connecting member 668 constitutes the elevating member, and the portion for determining the crack of the brittle substrate 688 based on the output signal of the sensor 650 of the computer is a crack determining unit. The part which stops the operation | movement of the mounting head 34 comprises an operation stop part, and the partial receiving members 682 and 684 comprise the raise limit prescription | regulation part.
In this substrate support apparatus 600, the support member 604 is moved up and down in two stages by the two lift apparatuses 324 and 606, but the lift apparatus 606 may be omitted.

  The pins constituting the detector may have a structure that is attached to and detached from the holder without using a tool. For example, the end of the portion of the pin that is fitted to the holder, and the lower end is a large diameter portion whose diameter is slightly larger than the inner diameter of the pin fitting hole of the holder, and the pin A portion adjacent to the upper end side, which is the tip, is a small diameter portion whose diameter is slightly smaller than the inner diameter of the pin fitting hole, and a slit that penetrates a part of the small diameter portion and the large diameter portion in the diameter direction is formed. It has a bifurcated shape, and an engagement leg portion as a pair of engagement portions is provided at the lower portion of the pin. In addition, a guide surface that forms part of a tapered surface whose diameter decreases toward the tip (lower end) side is provided on the outer surface of the free end portion (lower end portion) of the engaging leg portion. When the pins are fitted into the pin fitting holes of the holder, the pair of engaging legs are guided by the guide surfaces, and are fitted into the holder while being elastically deformed in directions approaching each other. In the state of being fitted to contact with the bottom surface, the pair of engaging legs are engaged with the inner peripheral surface of the pin fitting hole by the elastic restoring force, and the pin is kept in the state of being fitted to the holder. When removing the pin from the holder, force is applied to the pin, the pin is moved upward while overcoming the frictional force between the pair of engaging leg portions and the inner peripheral surface of the pin fitting hole, and is removed from the holder. .

By using the substrate support device 700 shown in FIGS. 35 and 36, it is possible to support the circuit board on which the electronic circuit components are already mounted on the back surface or the bottom surface from the lower side together with the electronic circuit components.
The substrate support device 700 includes a support table 702 and a support pin unit 704 attached to the support table 702, and the support table 702 is on the lifting table 350 (not shown) of the substrate support device lifting device 324 of the substrate conveyor 100. Removably fixed to. A unit body 706 detachably fixed to the support base 702 of the support pin unit 704 is provided with a support pin group 708 so as to be movable up and down. The support pin group 708 includes a plurality of support pins 712 that are soft support members made of sponge and projecting on the base 710. A piston 716 protrudes from the lower surface of the center of the base 710 and is fitted into a cylinder bore 718 formed in the unit main body 706 so as to be airtight and slidable in the axial direction to constitute an air cylinder 720. The supply of air from the air source 722 to the air chamber 724 is controlled by an electromagnetic direction switching valve 726 serving as a control valve.

  The raising and lowering of the support pin group 708 is guided by a guide device 732 including a plurality of guide rods 730 projecting from the base 710 and fitted to the unit main body 706 so as to be movable up and down. It is biased downward by a spring 734 disposed between the guide rod 730 and the unit main body 706. The rising end of the support pin group 708 with respect to the unit main body 706 is defined by the contact portion 740 provided on the base 710 contacting the stopper 742 provided on the unit main body 706. Further, a dog 750 is provided on the support base 702, and a limit switch 752 which is a kind of contact type sensor is switched during the ascent of the support base 702. A number of support pin units 704 are attached to the support base 702 according to the size of the circuit board. The substrate conveyor 100 including the substrate support apparatus 700 includes a push-up member 160 and a receiving member 450, for example.

After carrying in and stopping the circuit board, the substrate support device 700 is raised by the substrate support device lifting device 324. Along with this rise, the support base 702 raises the push-up member 160, and the push-up member 160 pushes up the circuit board from the transport unit 128 and sandwiches it between the partial receiving member 452 located at the operating position. The dog 750 switches the limit switch 752 while the support base 702 is raised, and the output signal changes from the OFF signal to the ON signal. Based on this, the electromagnetic direction switching valve 726 is switched, and air is supplied to the air cylinder 720 for support. The pin group 708 is raised, and the support pins 712 support the circuit board. The dog 750 and limit switch 752 have the highest height among the electronic circuit components mounted on the back surface of the circuit board after the push-up member 160 sandwiches the circuit board between the push-up member 160 and the partial receiving member 452. Is provided so that air is supplied to the air cylinder 720 at a timing when it contacts the lower surface of the electronic circuit component having a high height, and the support pin group 708 is raised. Therefore, the support pins 712 can be supported without moving the circuit board. The support pin 712 is a soft support member. If the circuit board is in contact with the electronic circuit component without being sandwiched between the push-up member 160 and the partial receiving member 452, the support pin 712 is elastically deformed in a direction perpendicular to the axis line. If the electronic circuit component is pushed by the reaction force generated by being lifted while avoiding the circuit component and the circuit board is displaced, the circuit board is held by the push-up member 160 and the partial receiving member 452. There is an electronic circuit component, the support pin 712 contacts the electronic circuit component in an asymmetric state due to elastic deformation, and the circuit board is not moved even if the reaction force of the elastic deformation acts on the electronic circuit component. 712 can contact the lower surface of the circuit board and can be supported from below while allowing the presence of electronic circuit components by elastic deformation. The support pin group 708 is raised to the rising end position where the contact portion 740 contacts the stopper 742.
The support base 702 constitutes an elevating member, the substrate support apparatus elevating device 324 constitutes a first elevating part, and the air cylinder 720 constitutes a second elevating part. In addition, the limit switch 752 constitutes a detector, controls the substrate support device lifting device 324 and the air cylinder 720 of the control device 30, and is electromagnetic based on detection of the rise of the support base 702 to the set height by the limit switch 752. A lift control unit is configured together with a portion that switches the direction switching valve 726 and allows the supply of air to the air cylinder 720 and the electromagnetic direction switching valve 726.

  By using the substrate support apparatus 800 shown in FIG. 37, it is possible to dispose a circuit board across a plurality of mounting modules 10, for example, two adjacent mounting modules 10, and to mount electronic circuit components. The substrate support device 800 includes a common support base 802 and a common support base mounting device 804. One end of the common support base 802 has a spacer 806 on one of the two mounting modules 10, for example, the lifting base 350 of the substrate supporting apparatus lifting device 324 of the mounting module 10 on the downstream side in the transport direction indicated by the arrow. And are detachably fixed by a plurality of bolts 808 which are a kind of fixing device.

As shown in FIG. 37, the common support base 802 is extended from the downstream lift base 350 onto the lift base 350 of the substrate support device lift 324 of the upstream mounting module 10, and a portion on the free end side thereof. A spring retainer 81 is provided at a portion facing the upstream lifting platform 350.
0 is provided so as to be movable up and down, and is urged toward the upstream lifting platform 350 by a spring 812 as an elastic member disposed between the common supporting platform 802. The spring retainer 810 includes a headed bolt 816 having a head 814 and two nuts 818 and 820 as shown in FIG. The bolt 816 is slidably fitted in a vertical through hole 824 formed in the common support base 802 in a state where the head 814 faces the lifting base 350, and is attached to the male screw portion 826 protruding from the through hole 824. Nuts 818 and 820 are screwed together. The spring 812 is disposed between the head 814 and the common support base 802, and the position of the head 814 can be adjusted by adjusting the screwing position of the two nuts 818 and 820 to the male screw portion 826. As shown in FIG. 38, bolts 828 are screwed into the common support base 802 at two locations corresponding to the two lift bases 350, respectively, thereby constituting a positioning portion.

  As shown in FIGS. 37 and 38, the common support base 802 is provided with a plurality of substrate suction protrusions 840 as a plurality of substrate support portions. Each of the substrate suction protrusions 840 is provided with a negative pressure chamber 844 having a plurality of annular grooves concentrically formed by opening on a suction surface 842 that is a support surface constituted by an upper end surface that is a surface thereof. Negative pressure is supplied to the negative pressure chamber 844 from a negative pressure source (not shown) through negative pressure passages 846 and 848 (see FIGS. 37 and 38). In addition, guide portions 854 are provided at both ends of the common support base 802 separated from each other in the transport direction. Each of these guide portions 854 has a plate shape, and after rising from the common support base 802 at a right angle, the guide portions 854 are inclined so as to be separated from each other toward the upper side.

  The circuit board 868 is placed on the board carrier 870 shown in FIG. The substrate carrier 870 has a plate shape having a length straddling the substrate support device lifting / lowering devices 324 of the two adjacent mounting modules 10, and a plurality of openings 872 into which the plurality of substrate suction protrusions 840 can be respectively fitted. And a plurality of pins 874 as positioning protrusions, which are a kind of positioning members, are provided upright to constitute a positioning device, abut against the side surface of the circuit board 868, and allow the substrate carrier 870 to move up and down. Positioning is performed in a direction parallel to the transport direction and in a direction perpendicular to the transport direction in a horizontal plane that is a plane parallel to the component mounting surface of the circuit board placed on the substrate carrier 870. FIG. 40 shows an example in which two circuit boards 868 that are long in the transport direction are arranged side by side in a direction perpendicular to the transport direction.

Substrate carrier 870 is mounted on each conveying section 128 of a pair of conveyor belts 126 of substrate conveyor 100, as is the case when the circuit board is directly conveyed by substrate conveyor 100, with both longitudinal edges thereof. The circuit board 868 is moved by the circumference of the conveyor belt 126 and transported. The movement of the substrate carrier 870 is guided by the guide rails 118 of the pair of side frames 110 and 112. As shown in FIGS. 37 and 41 (a), the substrate carrier 870 is stopped on the common support base 802, and the lift base 350 of each substrate support apparatus lift 324 of the two mounting modules 10 is raised. The common support base 802 is raised. The common support base 802 is raised integrally with the lifting platform 350 of the downstream mounting module 10, but the lifting platform 350 of the upstream mounting module 12 lifts the common support base 802 via the spring retainer 810. . The spring 812 is arranged in a pre-compressed manner, and the pre-compression and the adjustment of the position of the head 814 of the bolt 816 are performed with the head 814 in the state where the two elevators 350 are at the same height. The common support base 802 is placed in a horizontal posture with the nuts 818 and 820 slightly separated from the common support base 802. Therefore, if there is a deviation in the ascent of the two lifting platforms 350, the lifting platform 350 that supports the free end side of the common support platform 802 compresses the spring 812 or moves away from the bolt 816 to move the lifting platform 350 up and down. The load acting on the air cylinder 352 to be changed is changed, and the two lifting platforms 350 are raised at substantially the same speed, and the common support table 802 is raised.

In the middle of the raising of the common support base 802, as shown in FIG. 41 (b), the board suction protrusion 840 is fitted into the opening 872 of the board carrier 870, and the circuit board 868 is raised with respect to the pins 874, Lift from carrier 870. Even if there is a deviation in the transport direction between the common support 802 and the substrate carrier 870, the substrate carrier 870 is moved by being guided by the guide portion 854, the deviation is corrected, and the substrate suction protrusion 840 is fitted into the opening 872. Combined. Then, a portion around the substrate suction protrusion 840 of the common support base 802 comes into contact with the substrate carrier 870 and is lifted from the transport unit 128. The height of the board suction protrusion 840 and the height of the pin 874 are set to a size that supports the circuit board without detaching from the pin 874. The rising end positions of the two lifting platforms 350 are defined by the bolts 828 coming into contact with the side plates 116 of the board conveyor 100, and the component mounting surface of the circuit board 868 is positioned at the reference height. By determining the rising end of the common support base 802, the rising end positions of the two lifting bases 350 are determined. By setting the pre-compression amount of the spring 812 and adjusting the position of the head 814 of the bolt 816, two lifting positions A state is obtained in which the rising end positions of the base 350 are equal and the posture of the common support base 802 is horizontal.

  After the lift 350 is lifted, negative pressure is supplied to the negative pressure chamber 844 and the circuit board 868 is sucked to the suction surface 842. Then, the mounting heads 34 of the two mounting modules 10 are moved to mount the electronic circuit component on the circuit board 868. The mounting areas of these mounting heads 34 overlap, and an electronic circuit component is also mounted on the portion of the circuit board 868 between the two mounting modules 10. After the mounting of the electronic circuit components is completed, the supply of negative pressure to the negative pressure chamber 844 is interrupted, the circuit board 868 is opened, the two lifting platforms 350 are simultaneously lowered, and the common support platform 802 is lowered. However, even during this lowering, the two lifting platforms 350 are lowered at substantially the same speed due to the separation from the head 814 of the lifting platform 350 on the free end side or the compression of the spring 812. Then, the substrate carrier 870 is placed on the transport unit 128, the substrate suction protrusion 840 is pulled out from the opening 872, and the circuit board 868 is supported by the substrate carrier 870. The bolt 808, the spring retainer 810, and the spring 812 constitute a common support mounting device 804, the lifting platform 350 constitutes a lifting member, and the air cylinder 352 constitutes a lifting device.

The circuit board may be positioned and transported to each of the plurality of openings formed in the substrate carrier. In this case, a pin is erected for each of the plurality of openings so that the circuit boards are positioned in a direction parallel to and perpendicular to the transport direction, and the plurality of circuit boards are sucked by the board suction protrusions one by one. Is done. The number may be smaller than the number of openings in the transport direction, and one circuit board may be positioned and transported for a plurality of openings. An electronic circuit component can be mounted by positioning a circuit board in a portion between adjacent electronic circuit component mounting machines.
Further, positioning members such as pins may be provided so as to position the circuit board only in a direction perpendicular to the transport direction.

  Further, the substrate conveyor according to the claimable invention can be provided on various substrate working machines such as a screen printing machine and a highly viscous fluid coating machine in addition to the electronic circuit component mounting machine. Moreover, the substrate conveyor row | line | column which concerns on a claimable invention can be provided in the board | substrate work system comprised by arrange | positioning a several board | substrate working machine in series.

  10: Mounting module 20: Substrate transport device 22: Substrate support device 100, 102: Substrate conveyor 118: Guide rail 120: Receiving member 126: Conveyor belt 128: Transport section 138: Support roller 140: Support rail 150: Cleaning brush 160: Push-up member 180: Guide surface 210: Hanging portion 212: Notch 214: Partial hanging portion 216: Housing recess 280: Substrate carry-in detector 282: Substrate carry-out detector 310: Support unit 320: Support base 322: Support member 324: Substrate support Device elevating device 350: Elevating platform 370, 374: Ionizer 430: Receiving member 432: Hanging member 450: Receiving member 470: Guide rail 472: Receiving member 492: Hanging member 494: Notch 496: Partial hanging portion 00: Guide / receiving member 510: Detection member 516: Contact 536: Sensor 542: Substrate fixing detection device 570: Reception member 580, 582: Guide protrusion 588: Round portion 600: Substrate support device 602: Support base 604: Support Member 606: Lifting device 630: Crack detection unit 638: Pin 650: Sensor 660: Pressing member 680: Receiving member 688: Brittle substrate 700: Substrate support device 702: Support base 704: Support pin unit 712: Support pin 800: Substrate support Device 802: Common support 804: Common support mounting device 810: Spring retainer 812: Spring 870: Substrate carrier

Claims (3)

A conveyor belt that circulates along a closed curve including a horizontal straight section;
A guide rail provided with a guide surface for guiding a side edge of a circuit board supported and transported by a transport portion which is a portion corresponding to the linear portion of the conveyor belt;
A push-up member that supports the lower surface of the side edge of the circuit board supported by the transport unit and floats up from the transport unit;
A receiving member that extends in parallel with the conveying portion above the conveying portion, receives a side edge portion of the circuit board that is pushed up by the push-up member, and sandwiches the side edge portion of the circuit board together with the raising member;
A board support member for supporting the circuit board from below;
A lifting / lowering device that lifts and lowers the push-up member and the substrate support member;
The lifting device is
An elevating member for pushing up the push-up member;
A first elevating part for elevating the elevating member;
A second elevating unit held by the elevating member and relatively elevating the substrate support member with respect to the elevating member;
A lifting control unit for controlling the first lifting unit and the second lifting unit;
Including
When the board conveyor supports a circuit board having an electronic circuit component already mounted on the lower surface, the substrate support member is elastically deformed by contacting the electronic circuit component mounted on the lower surface, and the circuit board. When you move
The elevation controller is
After the push-up member is raised to a position sandwiching the circuit board in cooperation with the receiving member by the first lifting part, the highest height among the electronic circuit component which the substrate support member is mounted on the already The first elevating part and the first elevating part so that the substrate supporting member starts to rise by the second elevating part in the middle of the raising of the push-up member by the first elevating part at the timing of contacting the lower surface of the electronic circuit component substrate conveyor, wherein the benzalkonium control the said second lifting unit. The lift control unit, in response to the lifting member is raised to set the height by the first lifting part, according to claim 1 is intended to initiate an increase in the substrate support member to said second lifting part Substrate conveyor. The substrate conveyor includes a sensor that detects that the elevating member is raised to the set height by the first elevating unit,
The substrate conveyor according to claim 2 , wherein the elevating control unit causes the second elevating unit to start raising the substrate support member based on detection by the sensor.

Images