JPH06204692A - Transfer feeder - Google Patents

Abstract

PURPOSE:To efficiently transfer and mount chip components at a plurality of mounting units from one transfer feeder. CONSTITUTION:The transfer feeder comprises a tray container 5, a component transfer head unit 6, and component conveying means for conveying a chip component along a component conveying line. Particularly, a plurality of rows of component conveying lines 7, 8 are formed over a component sending position and a plurality of mounting units 1, 2, and component conveying means 9, 10 are so provided at the lines as to be movable in both directions.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a feeding feeder adapted to take out a chip component such as an IC from a tray of a tray accommodating portion and feed it to a mounting apparatus by a component conveying means.

[0002]

2. Description of the Related Art Conventionally, a chip component (electronic component) supplied by a component supply device is sucked by a mounting head having a suction nozzle, and this head is moved onto a printed board to mount the chip component. The mounting device described above is generally known. And, in the mounting device, normally,
A relatively compact component feeder such as a tape feeder is provided. However, among the chip parts, there are cases where it is difficult to store comparatively large chip parts or special shape parts in a tape feeder or the like.

Therefore, as a component supply device used in such a case, as shown in, for example, Japanese Unexamined Patent Publication No. Sho 64-30298, a tray in which a plurality of upper and lower trays in which chip components are arranged is accommodated in and out freely. An accommodating portion, a component conveying means provided from a predetermined position on the side of the tray accommodating portion to a component suction position of the mounting device, and adsorbing chip components on the tray drawn out from the tray accommodating portion. There is known a feeding feeder including a component transfer head portion that is transferred to the component transfer means.

[0004]

The conventional feeding feeder as described above is designed to feed the components to one mounting apparatus. When it is necessary to supply chip components to a plurality of mounting devices, such as when mounting devices are provided and the mounting of the components on the printed circuit board is performed by each mounting device, However, if the feeding feeders are individually provided, the size and cost of the entire device increase. Further, when the components are to be supplied to each mounting device by one feeding feeder, there remains a problem that the efficiency of component supply and mounting work is reduced.

In view of such circumstances, the present invention provides a feeding feeder capable of supplying chip components to a plurality of mounting devices with one feeding feeder and improving work efficiency. The purpose is to

[0006]

In order to achieve the above object, the present invention has a tray storage portion in which a plurality of upper and lower trays in which chip components are arranged are accommodated so that they can be drawn out, and a suction portion for the chip components. And a component transfer head unit that is movable between a position corresponding to the tray storage portion and a predetermined component delivery position, and a mounting device that mounts the chip components on the component delivery position and the printed circuit board. A component feeder for carrying chip components along a component transport line between the component transport lines, wherein the component transport lines are provided in a plurality of rows, and each component transport line is provided with a plurality of component delivery positions and a plurality of component delivery positions. It is formed so as to extend over a mounting device arranged at a location, and each of the component transfer lines is provided with a component transfer means so as to be movable in both directions.

[0007]

According to the above construction, the chip component on the tray of the tray storage portion is taken out by the component transfer head unit and transferred to the component transfer means of the component transfer line.
Then, the plurality of component transfer lines and the component transfer means provided in each of them are utilized to efficiently transfer the chip components to the mounting devices at a plurality of locations.

[0008]

Embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic view of a part including a feeding feeder and a part of a mounting device according to an embodiment of the present invention. In this figure, reference numerals 1 and 2 denote a mounting device, 3 denotes a board conveying line including a conveyor, and 4 denotes a chip component feeding feeder.
Although the mounting devices 1 and 2 are conventionally known, a detailed structure thereof is not shown. However, while holding the printed circuit board sent by the substrate transfer line 3 at a predetermined mounting work position, a suction nozzle is provided. After the chip component is adsorbed by the mounted mounting head, the mounting head is moved onto the printed board to mount the chip component on the printed board. A component feeder such as a tape feeder is also provided inside the mounting devices 1 and 2, and small chip components are supplied from this component feeder.

In the figure, the mounting devices 1 and 2 are provided at two positions with an appropriate interval in the direction of the board transport line 3, so that, for example, one mounting device 1 allows a chip component to be mounted on a part of a printed circuit board. After the mounting, the printed circuit board is transferred to the other mounting device 2 so that the chip components are mounted on the remaining part, so that both mounting devices can be used properly. Note that the usage of both the mounting devices 1 and 2 is not limited to this example, and for example, the mounting devices 1 and 2 may individually mount the chip components on the printed circuit board.

The feeding feeder 4 is installed on the side of the substrate transfer line 3 between the mounting devices 1 and 2.

As shown in FIG. 2, the feeding feeder 4 includes a tray housing portion 5 and a component transfer head unit 6.
And a plurality of rows of component transfer lines 7 and 8, and component transfer means 9 and 10 provided on each of the component transfer lines 7 and 8. The component transfer lines 7 and 8 are adjacent to the substrate transfer line 3. And it is arranged in parallel with this.

The tray accommodating portion 5 is arranged at a position spaced apart from the parts conveying lines 7, 8 with its front surface facing the parts conveying lines 7, 8. In this tray storage section 5, trays 11 on which chip parts are arranged are stored in a large number of rows in the vertical direction (see FIG. 3). Each tray 11 can be pulled out forward with respect to the tray storage section 5,
On the front surface, a gripped portion 12 to be gripped by a clamp described later is provided.
Are projected (see FIG. 4). A tray withdrawing device 15 for withdrawing a desired tray 11 is provided in front of the tray housing section 5.

As shown in FIG. 2 and FIG. 3, the tray pull-out device 15 includes a support frame 16 for supporting both side portions of the tray 11, a tray pull-out clamp 17, and this clamp 17. A guide 1 that supports the movable part in the X direction (direction orthogonal to the component transfer lines 7 and 8).
8 and a mechanism for moving the clamp 17. The clamp 17 has a pair of hook-shaped gripping portions 17a and 17b that can approach and separate from each other so that the gripped portion 12 can be gripped from both sides, and the gripping portion 17a can be driven by a driving means such as a cylinder. , 17b are activated. The mechanism for moving the clamp 17 includes a feed belt 1 arranged along the guide 18.
9 and a motor 20 for operating the feed belt 19, and the clamp 17 is coupled to the feed belt 19 so that the clamp 17 moves in the X direction according to the operation of the feed belt 19 by the motor 20. It has become.

Further, the tray pull-out device 15 is provided on the column 2 of the main body frame 21 of the feeding feeder 4.
2 is attached so that it can move up and down
The main body frame 21 is provided with a ball screw shaft 23 that extends vertically in parallel with and a servo motor 25 that rotates the belt screw shaft 23 via a belt 24, while a nut portion (not shown) screwed onto the ball screw shaft 23. Is provided in the tray withdrawing device 15, so that the tray withdrawing device 15 moves up and down as the ball screw shaft 23 is driven by the servomotor 25 and rotates.

The component transfer head unit 6 is also provided.
Is provided at a fixed height position between the tray storage section 5 and the component transfer lines 7, 8 above the rising end position of the tray drawer 15, and in the X direction and the Y direction (component transfer lines 7, 8). It is possible to move in a direction parallel to). That is, the head unit support member 30 extending in the Y direction is supported by the guide rails 31 so as to be movable in the X direction and is coupled to the X direction feed belt 32, and the head unit 6 is attached to the head unit support member 30 in the Y direction. Both the feed belts 31, 33 are movably supported and are coupled to a Y-direction feed belt 33 provided on the head unit support member 30.
Are driven by an X-axis servo motor 34 and a Y-axis servo motor 35, respectively.

The head unit 6 is provided with a head 36 for picking up components, and two heads 36 are provided in parallel in the figure. Each head 36 has a nozzle 37 at its lower end, and can be moved up and down by a constant stroke by an air cylinder 38 (see FIG. 5). Further, the head 36 is connected to a negative pressure supply source via a switching valve (not shown).

Further, the component transfer lines 7 and 8 are arranged in parallel with each other in two rows, each of which is composed of a monorail-shaped guide rail. It is formed so as to linearly extend from the position to both sides and reach both mounting devices 1 and 2. The component transporting means 9 and 10 provided on the component transporting lines 7 and 8 integrally have a component supporting portion 41 and a mounting portion 42 to the component transporting lines 7 and 8, and the mounting portion 42 is a component. It is movably engaged with the transfer lines 7 and 8. In the illustrated example, the component support portion 41 can simultaneously support five chip components.

Further, as a mechanism for moving the above-mentioned respective component conveying means 9 and 10 in each of the component conveying lines 7 and 8, a feed belt 43 arranged along the convey lines 7 and 8 and the feed belt 43 are driven. And a servo motor 44 for driving the parts, and the component conveying means 9 and 10 are coupled to the feed belt 43 (see FIG. 6).

The operation of the feeding feeder of this embodiment as described above will be described below.

When supplying a specific chip component among various chip components arranged in the tray 11 in the tray housing section 5 to the mounting apparatuses 1 and 2, first, the tray 11 on which the chip component is placed is selected. Then, the servo motor 25 is driven accordingly, and the height position of the tray pull-out device 15 is adjusted to correspond to the selected tray 11. Then, as shown in FIG. 4, the clamp 17 is operated and the tray 11 is pulled out, that is, as shown in FIG.
When the clamp 17 is actuated toward the tray 11 as indicated by arrow a in (a) and the clamp 17 reaches the front surface of the tray 11, a pair of gripping portions 17a, as indicated by arrow b in FIG.
17b are actuated in a direction in which they approach each other, and thereby the gripped portion 12 on the front surface of the tray 11 is gripped, and then the clamp 17 is actuated in the pull-out direction as shown by arrow C in FIG. 4 (c).

After the tray is withdrawn, the tray withdrawal device 15
Rises to a substantially raised end position, and in this state, the head units 6 are moved above the tray 11 by being driven by the servomotors 34 and 35, and then the head 36 is moved up and down by a constant stroke as shown in FIG. The chip component 50 on the tray 11 is sucked. In this case, the height from the upper surface of the tray 11 to the upper surface of the chip component 50 is equal to the height of the chip component 5
Although it depends on the type of 0, by finely adjusting the height position of the tray pull-out device 15, the upper surface of the chip component 50 can be set to a constant level H corresponding to the position of the nozzle 37 when the head is lowered. It is desirable for proper suction operation. Further, since the head unit 6 is provided with the two heads 36, the two chip components can be sucked by operating these heads, respectively.

After the parts are picked up, the head unit 6 moves to the parts conveying lines 7 and 8. Then, the component transfer means 9 and 10 at the component delivery position of the component transfer lines 7 and 8.
By lowering the head 36 and cutting the negative pressure supplied to the head 36 on the component support portion 41 of
The chip component is transferred to the component support portion 41.

By repeating the operation of the tray pull-out device 15 and the head unit 6 as described above, a specified number of chips can be supported within the number (five in the illustrated example) that can be supported on the component supporting portion 41. Parts have been transferred,
If necessary, after the chip component is transferred to one of the component transfer means 9, the chip component is transferred to the other component transfer means 10.

When the transfer of the component onto the component support portion 41 is completed, the feed belt 43 is driven by the servo motor 44 to specify the component conveying means 9 or 10 as shown in FIG. It moves toward the mounting device 1 or 2. Then, when it reaches a predetermined component supply position in the mounting apparatus, the component transfer means is stopped, and the chip head on the component support portion 41 is sucked by the mounting head in the mounting apparatus. When the component suction work is completed, the component transfer means 9 or 10 returns to the original component delivery position.

In this way, the chip components are fed, but in particular, two rows of component transport lines 7 and 8 are arranged, and both component transport lines 7 and 8 are arranged so as to extend over two mounting devices 1 and 2. 8 is formed, and the component transfer means 9 and 10 are provided so as to be movable in both directions. Therefore, by properly using these component transfer lines 7 and 8 and the component transfer means 9 and 10, The feeding efficiency of chip parts can be improved.

To explain this effect, FIG.
(B) shows a specific example of the relationship between the operation of both mounting devices and the operation of the feeding feeder 4. In this figure, of the operation times of the mounting apparatuses 1 and 2, A is the time required for movement to the suction point and suction operation when picking up a chip component from the component supply unit included in the mounting apparatus itself. , B is the time required to correct the position of the component and move to the mounting point, C is the time required to perform the mounting operation, and D is the movement to the suction point and the suction operation when sucking the chip component sent from the feeding feeder 4. Is the time it takes. In each operation time of the feeding feeder 4, E is a time required for component transportation to the mounting apparatus side and a component supply operation in the mounting apparatus, and F is a component feeding preparation operation (tray drawing device 15, Parts transfer head unit 6
It is the time required for (operations such as.

In FIG. 7A, the respective operation times of E and F in the feeding feeder 4 are substantially constant and the respective operations are periodically performed.
Optimizing as a whole by adjusting the control timing and time distribution so that the time D corresponds to the time E and the other times A, B, and C correspond to the time F of the preparatory operation in the feeding feeder 4. Cycle time can be obtained. Further, for example, the one mounting device 1 using the feeding feeder 4
If the parts are fed to the mounting device 2 on the other side and the parts are fed to the mounting device 2 on the other side, and the relationship between the control timings of the mounting devices 1 and 2 is adjusted accordingly, one feeding feeder 4
Thus, the parts can be efficiently fed to both the mounting devices 1 and 2.

The parts may be fed by both parts conveying lines at the same time as shown in FIG. 7 (a).
As shown in (b), operation of component transfer and component supply in either one of both component transfer lines 7 and 8 (time E)
In the meantime, a part of the preparatory operation (time F) for the other may be performed so that the operation of each of the transfer lines 7 and 8 is deviated in time.

In the above embodiment, there are two parts transfer lines.
Although the number of rows is one, three or more rows may be provided. Further, the mounting devices may be arranged at three or more places, and the component transfer line may be provided over them. Besides this, the concrete structure of each part is
Design changes may be made without departing from the scope of the present invention.

[0030]

As described above, the feeding feeder according to the present invention is provided with the tray accommodating portion, the component transfer head unit, and the component transporting means for transporting the chip components along the component transporting line. Since a plurality of rows of component transfer lines are formed over the component delivery positions and the mounting devices at a plurality of locations, and the component transfer means are provided in each of the above-mentioned component transfer lines so as to be movable in both directions, a plurality of components can be fed by one feeding feeder. It is possible to supply the chip components to the mounting device and improve the work efficiency of the component feeding and mounting work by properly using each of the transfer lines.

[Brief description of drawings]

FIG. 1 is a plan view showing a feeding feeder according to an embodiment of the present invention together with a part of a mounting apparatus.

FIG. 2 is an enlarged plan view of the feeding feeder.

FIG. 3 is a front view of a tray storage unit and a tray drawer.

4A, 4B, and 4C are operation explanatory views sequentially showing the tray withdrawing operation.

FIG. 5 is an operation explanatory view showing a suction operation of a chip component on a tray by a head.

FIG. 6 is an operation explanatory view showing a carrying operation by a parts carrying means.

7 (a) and 7 (b) are time charts showing the temporal relationship between the operation of the feeding feeder and the operation of each mounting apparatus.

[Explanation of symbols]

 1, 2 Mounting device 4 Feeding feeder 5 Tray storage unit 7, 8 Component transfer line 9, 10 Component transfer means

Claims (1)

[Claims] 1. A tray accommodating portion for accommodating a plurality of upper and lower trays in which chip components are arranged so as to be able to be drawn out, and a suction portion for chip components, and a position corresponding to the tray accommodating portion and a predetermined component feeding position Component transfer head unit that can be moved over and between the component delivery position and the mounting device that mounts the chip component on the printed circuit board. And a plurality of rows of the component transport lines, and each component transport line is formed over the component delivery position and a mounting device arranged at a plurality of locations, and each of the component transport lines is provided. A feeding feeder, characterized in that each of the parts is provided with a parts conveying means so as to be movable in both directions.