CN102342196B - Tape feeder and carrier tape delivery method using same - Google Patents

Abstract

A tape feeder configured so that suction displacement can be reduced. A tape feeder is a feeder for delivering a carrier tape (122a) on which component containing sections (141) having a rectangular shape are disposed at predetermined intervals in the delivery direction. The tape feeder comprises a first magnet (151) provided below the bottom surface of a component containing section (141), which has been delivered to a component extraction region, so as to extend in the delivery direction below one side of the bottom surface of the component containing section (141) in the widthwise direction of the bottom surface. The first magnet (151) attracts a component (140) in the component containing section (141), which has been delivered to the component extraction region, to one side of the bottom surface of the component containing section (141) in the widthwise direction of the bottom surface.

Description

Tape feeder and carrier tape delivery method using same

technical field

This invention relates to tape feeders.

Background technique

Conventionally, there is a component mounting apparatus as an apparatus for mounting electronic components (hereinafter simply referred to as "components") on a substrate. In the component mounting apparatus, the component is taken out from the tape feeder by the mounting head through the suction nozzle, and is transported and loaded onto the substrate. The tape feeder sends out the carrier tape and transports the components to the component take-out area. The carrier tape is provided with a plurality of rectangular component cavities for storing components at predetermined intervals in the sending direction. the removed area. As a technique related to a tape feeder, the technique described in patent document 1 and patent document 2 exists, for example.

In the tape feeders of Patent Document 1 and Patent Document 2, magnets are provided below the entire bottom surface of the bottom surface of the component storage section that is fed out to the component take-out area. According to this, it is possible to suppress the standing up of the components in the component storage portion and the like.

prior art literature

patent documents

Patent Document 1: (Japanese) Unexamined Patent Publication No. 2000-228600

Patent Document 2: (Japanese) Unexamined Patent Publication No. 2009-212194

Summary of the invention

The problem to be solved by the invention

However, even with the same carrier tape, since the component storage parts are different, the storage positions of the components in the component storage parts are also different. Therefore, when the component is taken out by the mounting head, positional deviation (suction deviation) occurs from a predetermined suction position of the component, and as a result, positional accuracy of component mounting deteriorates. For example, carrier tapes of different component makers have different gaps in the component storage portion (the total of the gaps in the same direction on the side surface of the component storage portion in a predetermined direction and the plane between the components) as shown in Fig. 19. The amount of gap between the component housing portion and the positional deviation also increases, making it easy to cause suction errors. And conversely, if the amount of clearance in the component housing portion is too small, the amount of misalignment increases as the amount of clearance becomes smaller, and suction errors tend to occur. That is, when the clearance amount of the component storage part is not within the predetermined range (the range indicated by the arrow in FIG. 19 ), suction errors are likely to occur. Therefore, in component mounting using carrier tapes of different manufacturers, it is difficult to stably control the gap amount of the component storage portion, and suction errors and stand-up suction are likely to occur.

For small components, the amount of clearance in the component housing must be large. In addition, when taking out a small-sized component, it is greatly affected by the suction deviation, and even if the suction deviation is small, the component cannot be taken out, and suction errors are likely to occur. Therefore, especially in the case of mounting a small-sized component, it is strongly desired to reduce the suction deviation.

Contents of the invention

In view of the above problems, the present invention aims to provide a tape feeder capable of reducing suction deviation, and a carrier tape delivery method using the tape feeder.

means of solving problems

In order to achieve the above objects, a tape feeder according to an embodiment of the present invention feeds out a carrier tape having a plurality of rectangular component storage portions provided at predetermined intervals in the feeding direction, and the tape feeder The device has: a first magnetic force area, which is provided below the bottom surface of the component storage part sent out to the component take-out area, and the first magnetic force area is provided along the bottom surface on one side in the width direction of the bottom surface. The delivery direction extends, and the components sent out to the component storage portion of the component extraction area are attracted to one side in the width direction.

Accordingly, the component in the component storage portion in the component extraction area is attracted to the end portion on the side of the component storage portion by the first magnetic force area. As a result, all the components in the component storage portion are aligned with the end portion on one side of the component storage portion in the component take-out area, so that suction deviation can be reduced.

Here, the tape feeder may further include a second magnetic area, and the second magnetic area may be provided below the bottom surface of the component storage part sent out to the component take-out area. The first magnetic force region is located behind the sending direction, and attracts the components sent out to the component storage portion of the component taking-out region to the rear of the sending direction. In addition, the first magnetic region may be composed of a first magnet, the second magnetic region may be composed of a second magnet, and the first magnet and the second magnet may be integrated to form an L-shaped magnet.

Accordingly, the components in the component storage section moving in the delivery direction in the component take-out area are attracted by the force of the delivery belt to the rear end of the component storage section in the delivery direction by the second magnetic force area. As a result, all the components in the component storage section are aligned with the corners of the component storage section in the component take-out area, so that suction deviation can be further reduced.

Furthermore, the first magnet may be provided below half of the bottom surface.

According to this, it is possible to prevent the components from standing up due to the force of the first magnet attracting the components in the component accommodating portion being too strong, and the suction nozzles from being unable to suction the components.

Furthermore, the first magnet may be made of an elastic body.

According to this, even if the thickness of the carrier tape changes, it is possible to absorb the force received by the component and the carrier tape from the suction nozzle when taking out the component.

In addition, the tape feeder may further include a plate-shaped elastic member that supports the bottom surface of the component storage portion sent out to the component take-out area, and the first magnet may , is attached to the surface of the elastic member on the side opposite to the side on which the bottom surface is placed.

According to this, the assembly of the first magnet becomes easy, and it is possible to reduce suction deviation with a simple configuration. In addition, although the magnetic force is inversely proportional to the square of the distance, the distance between the first magnet and the carrier tape can be set to a constant distance, so the force of the first magnet attracting the element can be controlled.

In addition, the first magnet may be provided below the bottom surfaces of the plurality of component storage parts sent out to the component extraction area.

According to this, all the components in the component storage portion are aligned with the end portion on one side of the component storage portion with a high probability in the component take-out area, so that suction deviation can be further reduced.

In addition, the leading end portion of the first magnet in the sending direction may be provided below a quarter of the area of the bottom surface.

According to this, it is possible to prevent the suction nozzle from being unable to suction the component due to the force of the first magnet attracting the component in the component storage portion at the component removal position being too strong.

In addition, in the carrier tape delivery method according to one embodiment of the present invention, the tape feeder sends out the carrier tape having a plurality of rectangular component storage portions provided at predetermined intervals in the delivery direction. In the carrier tape delivery method, the component delivered to the component storage section of the component take-out area of the tape feeder is sucked to one side in the width direction of the bottom surface of the component storage section and to the rear in the delivery direction.

According to this, adsorption deviation can be reduced.

Invention effect

According to the present invention, since the variation in adsorption can be reduced, the unevenness of the storage chamber can be absorbed, and the component extraction positions can be made uniform to stabilize the component adsorption rate and mounting quality.

Description of drawings

FIG. 1 is a plan view of a component mounting machine according to an embodiment of the present invention.

Fig. 2 is a perspective view of the tape feeder of this embodiment.

Fig. 3 is a perspective view of the carrier tape of this embodiment.

Fig. 4 is a perspective view of the gland of this embodiment.

Fig. 5 is a perspective view of the leaf spring of this embodiment.

Fig. 6 is a perspective view of the magnet of this embodiment.

Fig. 7 is a plan view showing the positional relationship between the magnet and the carrier tape.

8 is a plan view showing how the positions of components in the component storage portion change due to magnets.

FIG. 9 is a cross-sectional view showing how the positions of components in the component storage portion change due to magnets.

FIG. 10A is a graph showing the suction deviation in the width direction of samples that are continuously sent out.

FIG. 10B is a diagram showing adsorption deviation in the sending direction of samples that are continuously sent out.

FIG. 10C is a diagram showing adsorption deviation in the width direction and the sending direction of samples that are continuously sent out.

FIG. 11A is a diagram showing the suction deviation in the width direction of samples that are continuously sent out.

FIG. 11B is a diagram showing adsorption deviation in the sending direction of samples that are continuously sent out.

FIG. 11C is a diagram showing suction deviations in the width direction and the sending direction of samples that are continuously sent out.

FIG. 12A is a diagram showing the suction deviation in the width direction of samples that are continuously sent out.

FIG. 12B is a diagram showing adsorption deviation in the sending direction of samples that are continuously sent out.

FIG. 12C is a diagram showing suction deviations in the width direction and the sending direction of samples that are continuously sent out.

FIG. 13A is a diagram showing the suction deviation in the width direction of samples that are continuously sent out.

FIG. 13B is a diagram showing adsorption deviation in the delivery direction of samples that are continuously delivered.

FIG. 13C is a diagram showing the suction deviation in the width direction and the sending direction of samples that are continuously sent out.

Fig. 14 is a perspective view of a magnet in Comparative Example 1 of this embodiment.

15 is a plan view and a cross-sectional view showing how the positions of the components in the component storage portion change due to magnets.

Fig. 16 is a perspective view of a magnet in Comparative Example 2 of this embodiment.

17 is a plan view and a cross-sectional view showing how the positions of components in the component storage portion change due to magnets.

FIG. 18A is a diagram illustrating how the positions of components in the component storage portion change due to vibration.

FIG. 18B is a diagram illustrating how the positions of components in the component storage portion change due to vibration.

FIG. 18C is a diagram showing how the position of the components in the component storage portion changes due to its own weight.

Fig. 18D is a cross-sectional view showing the configuration of an LED.

FIG. 19 is a graph showing the correlation between the gap amount of the component storage portion and the suction error.

Detailed ways

Hereinafter, a tape feeder and a carrier tape delivery method using the tape feeder according to an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a plan view of the component mounting machine of this embodiment.

This component mounting machine includes a base 100 , a transport rail 101 , a component supply unit 103 , a mounting head 105 , a recognition camera 106 , an XY robot 107 , a waste tray 108 , and a nozzle station 109 .

The transport rail 101 is provided at the center of the base 100, and the substrate 104 is transported and positioned.

A plurality of tape feeders 102 are arranged side by side in the components supply part 103 which supplies various components.

The mounting head 105 takes out components from the component supply unit 103 and transports and mounts them on the substrate 104 .

The recognition camera 106 recognizes the component sucked to the suction nozzle of the mounting head 105 from below.

The XY robot 107 moves the mounting head 105 in the XY direction.

Components are discarded in the discard tray 108 .

The nozzle station 109 holds the suction nozzles of the mounting head 105 .

FIG. 2 is a perspective view of the tape feeder 102 .

The tape feeder 102 includes a main frame 120 , a reel side plate 121 , a supply reel 122 , a delivery roller 123 , a ratchet 124 , a delivery rod 126 , a tension spring 126 a , a take-up reel 129 , and a cover 130 .

The supply reel 122 is rotatably attached to the reel side plate 121 joined to the main frame 120 , and the carrier tape 122 a holding the element is wound around the supply reel 122 .

The feed roller 123 feeds out the carrier tape 122a pulled out from the supply reel 122 at regular intervals.

The ratchet 124 rotates the delivery roller 123 .

The sending rod 126 makes the ratchet 124 rotate at a certain angle through the connecting rod 125 .

The reel 129 is wound up, and the cover tape 122b peeled off from the carrier tape 122a is wound up.

In the tape feeder 102 having the above structure, the ratchet 124 is rotated by a fixed angle by moving the delivery rod 126 in the Y1 direction with a motor, an air cylinder, or the like. Then, the delivery roller 123 is rotated in conjunction with the ratchet 124 so as to rotate by one roller pitch. Accordingly, the carrier tape 122a is sent out by a component pitch which is an interval between two adjacent components (component storage portions). Thereafter, the force to push out the sending rod 126 is released, and the sending rod 126 returns to the original position in the Y2 direction due to the force applied by the tension spring 126a. By repeating such a series of operations, the used carrier tape 122 a is discharged to the outside of the tape feeder 102 . In addition, the delivery roller 123 may be rotated by a motor to send out the carrier tape 122a not by the delivery lever 126, and the take-up reel 129 may be used to rotate the delivery roller 123. Different motors are used for winding action. For example, in the case where the roller pitch is 2 mm and the component pitch is 2 mm, in order to send the carrier tape 122 a by one component pitch, the delivery rod 126 is moved once. In addition, the pitch of the elements and the pitch of the rollers can be different.

FIG. 3 is a perspective view of the carrier tape 122a.

The carrier tape 122a is composed of a base tape 122c and a cover tape 122b. The carrier tape 122 a is supplied in such a manner that a predetermined number of tapes are wound around the supply reel 122 .

The substrate tape 122c is provided with a plurality of rectangular component housing portions (recesses) 141 that accommodate various chip-shaped components 140 and are continuously provided at predetermined pitches in the feeding direction of the carrier tape 122a.

The cover tape 122b is attached to the upper surface of the base tape 122c so as to cover the opening of the component storage portion 141, so that the components 140 are packaged.

FIG. 4 is a perspective view of the gland 130 .

The gland 130 has a shutter 127 and a slit 128 , and the gland 130 is installed on the main frame 120 such that the shutter 127 is located above the ratchet 124 .

When taking out the component 140, the shutter 127 is opened, and the component 140 of the component storage part 141 below the shutter 127 is exposed upward. The suction nozzle of the mounting head 105 suctions and removes the exposed component 140 .

The slit 128 functions as a cover tape peeling portion, and peels the cover tape 122b from the carrier tape 122a just before reaching the shutter 127 .

The tape feeder 102 has a leaf spring 160 as an elastic member as shown in a perspective view of FIG. The carrier tape 122 a sent out is placed on the upper part of the plate spring 160 which supports the bottom surface of the component storage part 141 . The leaf spring 160 can absorb the force received by the element 140 and the carrier tape 122a from the suction nozzle when the element 140 is taken out.

A plate-like magnet 150 is attached in an L-shape as shown in a perspective view of FIG. The magnet 150 is integrally composed of a first magnet 151 arranged along the delivery direction of the carrier tape 122a and a second magnet 152 arranged along the width direction perpendicular to the delivery direction.

The first magnet 151 and the second magnet 152 are made of elastic bodies in order to absorb the force that the component 140 and the carrier tape 122a receive from the suction nozzle when the component 140 is taken out from the suction nozzle.

Here, the magnet 150 is, for example, an isotropic Ba ferrite magnet, the length (a of FIG. 6 ) of the first magnet 151 is, for example, 11.5 mm, and the width of the first magnet 151 (b of FIG. 6 ) is, for example, 1.15 mm. , the length (c of FIG. 6 ) of the second magnet 152 is, for example, 1.15 mm.

In addition, in the following, the following area is set as the component extraction area of the tape feeder 102, that is, the area for extracting the components 140 provided with the cover 130 and located below the cover 130, specifically, More specifically, the region above the plate spring 160 is a region including the component storage portion 141 below the shutter 127 and, for example, three component storage portions 141 behind it (rearward in the delivery direction).

FIG. 7 is a plan view showing the positional relationship between the magnet 150 and the carrier tape 122a.

Below the bottom surface of the component storage part 141 sent out to the component take-out area, the first magnet 151 is arranged to extend along the sending direction below one side of the width direction of the bottom surface of the component storage part 141, and will be sent out to The components 140 in the component storage portion 141 of the component extraction area are sucked to one side and downward in the width direction.

Here, below the bottom surface of the component storage portion 141 in the component extraction area, the first magnet 151 is provided only below half of the bottom surface of the component storage portion 141 in parallel with the sending direction to cover the area of the bottom surface of the component storage portion 141. half of. In addition, the first magnet 151 is located below the bottom surfaces of the three component storage portions 141 including the component storage portion 141 at the component extraction position in the component extraction area. Furthermore, the leading end portion of the first magnet 151 in the delivery direction is provided below a quarter of the area of the bottom surface of the component storage portion 141 in the component extraction region. Accordingly, it is possible to prevent the adsorption nozzle from being unable to adsorb the component 140 when the component 140 is taken out because the first magnet 151 attracts the component 140 at the component extraction position too strongly.

In addition, the first magnet 151 attracts the component 140 of the component storage portion 141 to one side and downward in the width direction in the component extraction area, so the component 140 stands upright in the component storage portion 141 because the magnetic flux density of the first magnet 151 is large. In particular, when the element 140 is a minute element or a dice-shaped element, such an element 140 tends to stand up. Therefore, it is preferable to use a magnet having a surface maximum magnetic flux density of 50 mT or less, for example, about 40 mT, as the first magnet 151 .

Below the bottom surface of the component storage portion 141 in the component extraction area, the second magnet 152 is arranged behind the first magnet 151 in the sending direction, and attracts the components 140 sent out to the component storage portion 141 of the component extraction area. Rear and below the delivery direction.

Here, the second magnet 152 is provided at a distance of two component storage portions 141 from the component storage portion 141 at the component extraction position. Therefore, it is possible to prevent the component 140 from standing up due to the force of the second magnet 152 attracting the component 140 at the component extraction position too strong, and that the suction nozzle cannot attract the component 140 when the component 140 is taken out.

In addition, since the second magnet 152 attracts the component 140 in the component storage portion 141 in the delivery direction and downward in the component extraction area, the component 140 stands up in the component storage portion 141 when the magnetic flux density of the second magnet 152 is high. Therefore, it is preferable to use a magnet whose surface maximum magnetic flux density is 50 mT or less, for example, 40 mT, as the second magnet 152 .

The plan view of FIG. 8 and the cross-sectional view of FIG. 9 show how the position of the component 140 in the component storage portion 141 changes due to the magnet 150 .

First, as shown in FIG. 8(a) and FIG. 9(a), the carrier tape 122a is sent out by one component pitch in the delivery direction, and one component storage portion 141 is sent out to the component extraction area. The magnet 150 is located below the component storage part 141 sent out to the component extraction area, and the components 140 of the component storage part 141 above the magnet 150 are attracted to the bottom of the component storage part 141 .

Then, as shown in FIG. 8( b ) and FIG. 9( b ), the carrier tape 122a is sent out by one component pitch in the sending direction, and another component storage portion 141 is sent out to the component extraction area. The component 140 that has been sent out to the component storage section 141 in the component take-out area is attracted by the magnet 150 in the delivery direction and the width direction, and moves to the end of the component storage section 141 in the delivery direction and the width direction, that is, the corner of the component storage section 141. .

Then, as shown in FIG. 8(c) and FIG. 9(c), the carrier tape 122a is sent out by one component pitch in the sending direction, and another component storage portion 141 is sent out to the component extraction area. The component 140 moved to the corner of the component storage portion 141 is continuously attracted by the magnet 150 in the delivery direction and the width direction, and maintains the position.

Finally, as shown in Figure 8(d) and Figure 9(d), the carrier tape 122a is sent out by one component pitch in the sending direction, and another component storage part 141 is sent out to the component extraction area, and the component extraction area One of the component storage parts 141 is sent out to the component extraction position. Then, the component 140 at the component extraction position is taken out by the suction nozzle. All the components 140 sent to the component extraction position are fixed to the corners of the component storage part 141 by the magnet 150, so the suction position of the components 140 at the component extraction position is constant.

10A to 13C are diagrams for explaining that the tape feeder 102 can reduce suction deviation. Fig. 10A ~ Fig. 10C and Fig. 12A ~ Fig. 12C show that the magnet is disposed under the entire bottom surface of the component storage part 141, and the change of adsorption deviation when taking out a plurality of components 140 continuously, Fig. 11A ~ Fig. 11C and Fig. 13A ~ FIG. 13C shows the transition of the suction deviation when the magnet 150 is set in the state shown in FIG. 7 and a plurality of components 140 are continuously taken out.

10A to 11C show adsorption deviation when the element 140 is a capacitor, and FIGS. 12A to 13C show adsorption deviation when the element 140 is a resistor. And, in Fig. 10A, Fig. 11A, Fig. 12A and Fig. 13A, the horizontal axis shows the sample number, and the vertical axis shows the adsorption deviation (dX) in the width direction, and among Fig. 10B, Fig. 11B, Fig. 12B and Fig. 13B, the The sample number is shown, the vertical axis shows the adsorption deviation (dY) in the sending direction, and in Figure 10C, Figure 11C, Figure 12C and Figure 13C, the horizontal axis shows the adsorption deviation in the width direction, and the vertical axis shows the adsorption deviation in the sending direction .

10A-10C and 11A-11C and 12A-12C and 13A and 13C respectively, it can be seen that the magnet 150 in FIG. Moreover, in FIG. 10B and FIG. 12B, due to the change in the characteristics of the tape feeder 102, the adsorption deviation changes greatly in the vicinity of sample number 390, but in FIG. 11B and FIG. A change in adsorption deviation due to a change in the characteristics of the feeder 102 . Therefore, it can be seen that the magnet 150 of FIG. 7 suppresses the deviation of suction due to the change in the characteristics of the tape feeder 102 . Furthermore, even when comparing FIGS. 11A to 11C and FIGS. 13A to 13C , there is no significant difference in adsorption deviation. Therefore, it can be seen that the magnet 150 in FIG. 7 can reduce the deviation of attraction to the element 140 as the resistor even if the element 140 is a resistor that is less susceptible to the influence of magnetic force than a capacitor, and it can be seen that the attraction can be reduced for various elements 140. Deviate.

As described above, the tape feeder 102 of this embodiment has the first magnet 151 below the bottom surface of the component storage part 141 in the component take-out area, and has the first magnet 151 behind the first magnet 151 in the delivery direction. The second magnet 152 is provided in an island shape. Therefore, in the component extraction area, the component 140 of the component storage part 141 is attracted to the side end of the width direction of the component storage part 141 by the first magnet 151, and is attracted to the component storage by the second magnet 152 at the same time by the force of the carrier tape 122a sent out. The rear end of the delivery direction of the part 141. As a result, all the components 140 of the component storage parts 141 are aligned with the ends of the component storage parts 141 in the component take-out area, so that suction deviation can be reduced.

Furthermore, according to the tape feeder 102 of this embodiment, the 1st magnet 151 and the 2nd magnet 152 are provided below the bottom surface of the component storage part 141 in the component extraction area. Therefore, in the component extraction area, the component 140 in the component storage portion 141 is attracted to the lower side of the component storage portion 141 by the first magnet 151 and the second magnet 152 . As a result, the components 140 in the component storage portion 141 in the component extraction area can be suppressed from jumping out or standing up from the component storage portion 141 .

Also, according to the tape feeder 102 of the present embodiment, the first magnet 151 is provided below half of the bottom surface of the component storage portion 141 . As a result, the component 140 in the component storage portion 141 can be prevented from being strongly attracted by the first magnet 151 to stand up.

(comparative example 1)

Next, magnet 150 according to Comparative Example 1 of Embodiment 1 will be described.

FIG. 14 is a perspective view of a magnet 150 according to this comparative example.

In the magnet 150 according to this comparative example, the width of the magnet 150 in the width direction gradually becomes narrower as it faces the sending direction, and the magnet 150 according to this comparative example has a triangular shape instead of an L-shape, which is different from the magnet 150 in FIG. 6 . different.

The plan view of FIG. 15( a ) and the cross-sectional view of FIG. 15( b ) show how the position of the component 140 in the component storage portion 141 changes due to the magnet 150 according to this comparative example.

The component 140 delivered to the component extraction area is also attracted by the magnet 150 according to the comparative example in the delivery direction and the width direction in the component extraction area, and moves to the end of the component storage portion 141 in the delivery direction and the width direction. However, since the magnet 150 has a triangular shape, the magnetic field is distorted, so the component 140 in the component extraction area rotates and is inclined with respect to the delivery direction and the width direction. On the other hand, in the case of the L-shaped magnet 150 in FIG. 6 , since such rotation of the element 140 does not occur, it is possible to reduce suction deviation.

(comparative example 2)

Next, the magnet 150 according to Comparative Example 2 of the present embodiment will be described.

FIG. 16 is a perspective view of a magnet 150 according to this comparative example.

The magnet 150 related to this comparative example has a wide portion not only at the rear end in the sending direction but also at the leading end in the sending direction. It is different from the magnet 150 of FIG. 6 in that it is not L-shaped.

The plan view of FIG. 17( a ) and the cross-sectional view of FIG. 17( b ) show how the position of the component 140 in the component storage portion 141 changes due to the magnet 150 according to this comparative example.

The component 140 delivered to the component extraction area is also attracted in the delivery direction and width direction by the magnet 150 in the component extraction area according to the comparative example, and moves to the end of the component storage portion 141 in the delivery direction and the width direction. However, since the magnet 150 is U-shaped, the component 140 close to the component extraction position is attracted to the front in the delivery direction, so the position of the component 140 at the component extraction position cannot be fixed at the end of the delivery direction. On the other hand, in the case of the L-shaped magnet 150 in FIG. 6 , since the position of the moved element 140 is fixed, it is possible to reduce suction deviation.

As mentioned above, although the tape feeder of this invention and the carrier tape delivery method using this tape feeder were demonstrated based on an Example, this invention is not limited to these Examples. Various modifications conceivable by those skilled in the art are also included in the scope of the present invention without departing from the gist of the present invention. In addition, it is also possible to arbitrarily combine the constituent elements of the plurality of embodiments within the scope not exceeding the gist of the invention.

For example, in the above-described embodiment, the magnet 150 is set to have an L-shape. However, the present invention is not limited thereto, and any magnet 150 may be used as long as it generates a magnetic force that attracts the component 140 in the component extraction region to the end of the component storage portion 141 . For example, the magnet 150 may be formed by separating the first magnet 151 and the second magnet 152 .

In addition, in the above-described embodiment, the second magnet 152 is set to be provided at a distance of two component storage portions 141 from the component storage portion 141 at the component extraction position. However, it is not limited thereto, and any distance may be used as long as the distance does not affect the extraction of components by the suction nozzle in consideration of the magnetic force of the second magnet 152 and the component pitch. For example, when the magnetic force of the second magnet 152 is strong, the second magnet 152 may be provided below the adjacent component storage portion 141 of the component storage portion 141 at the component extraction position. In addition, when the magnetic force of the second magnet 152 is weak, the second magnet 152 may be provided at a distance of three or more component storage portions 141 from the component storage portion 141 at the component extraction position.

In addition, in the above-described embodiment, the first magnet 151 is provided to cover half of the area of the bottom surface of the component storage portion 141 below the bottom surface of the component storage portion 141 in the component extraction area. However, as long as it is below the bottom surface of the component storage part 141 in the component extraction area, the first magnet 151 is provided so as to cover only a part of the bottom surface of the component storage part 141 in the width direction instead of the whole, and it is not limited to half. .

In addition, in the above-mentioned embodiment, it is set that the first magnet 151 is provided below the bottom surface of the three component storage parts 141 sent out to the component take-out area, but as long as the first magnet 151 is provided The lower part of the bottom surface of the component storage part 141 is sufficient, and the number is not limited to three.

In addition, in the above-described embodiment, it is assumed that the first magnet 151 is provided. However, it is sufficient for the tape feeder to have the following first magnetic force area, and it is not necessarily limited to the first magnet 151. The first magnetic force area is the bottom surface of the component storage part 141 sent out to the component take-out area. The first magnetic force area is set to extend along the sending direction below one side of the bottom surface in the width direction, and attracts the components sent out to the component storage part 141 of the component extraction area to one side of the width direction. For example, although it is set that the first magnetic region is constituted by one first magnet 151 in the above-mentioned embodiment, it may be constituted by a plurality of magnets.

Furthermore, in the above-described embodiment, it is assumed that the second magnet 152 is provided. However, the tape feeder is not limited to the second magnet 152 as long as it has the following second magnetic force area on the bottom surface of the component storage part 141 sent out to the component take-out area. The second magnetic force area is set behind the first magnetic force area in the sending direction, and attracts the components sent out to the component storage part 141 of the component picking area to the rear of the sending direction. For example, in the above-mentioned embodiment, it is set that the second magnetic force region is composed of one second magnet 152, but it may also be composed of a plurality of magnets.

Also, in the above-described embodiment, before the magnet 150 attracts the component 140 to the end of the component storage portion 141, the tape feeder is vibrated or the tape feeder is tilted so that the component 140 moves toward the end of the component storage portion 141 .

For example, as shown in FIG. 18A , the components 140 may be moved to the end of the component storage portion 141 by an oscillator, a spring, etc. that vibrate in the width direction of the tape feeder. Furthermore, as shown in FIG. 18B , the components 140 may be moved toward the end of the component storage portion 141 by an oscillator, a spring, etc. vibrating in a direction 45 degrees relative to the feeding direction of the tape feeder. Furthermore, as shown in FIG. 18C , the component 140 may be moved toward the end of the component storage portion 141 by the own weight of the component 140 by inclining the correction roller 170 for sending out the tape feeder by 25 degrees, for example.

The configurations of FIGS. 18A to 18C are effective for an element 140 such as an LED (Light Emitting Diode) chip shown in the cross-sectional view of FIG. 18D . Because Ni (nickel) plating is used for internal electrodes and external electrodes in resistors and capacitors, some components are made of magnetic materials. On the other hand, in the LED chip, for example, the lead frame is made of a material containing less current loss such as gold or silver, and the electrode 180 is also made of gold flash plating instead of nickel plating, and its components are not easily affected or affected by magnetic force. Consists of few materials. Moreover, since the electrode 180 and the element body 181 formed on the same surface as the bottom surface of the LED are made of different materials such as gold flash and glass epoxy resin, the surface slip coefficients of the two are different, and it is difficult to slide in the element housing portion 141. . Furthermore, since the contact area between the element body 181 and the element accommodating portion 141 is large, it is difficult to slide in the element accommodating portion 141 . Furthermore, since many of them have a structure in which the electrode 180 formed on the same surface as the bottom surface and the surface of the element body 181 are formed with steps, the sliding inside the element housing portion 141 is difficult.

Industrial Applicability

The present invention is applicable to a tape feeder and a carrier tape delivery method using the tape feeder, and particularly applicable to a component mounting machine or the like.

Symbol Description

100 abutments

101 conveyor track

102 belt feeder

103 Component Supply Department

104 substrates

105 mounting head

106 recognition camera

107XY robot arm

108 waste tray

109 nozzle station

120 main frame

121 reel side panels

122 supply scroll

122a carrier tape

122b cover tape

122c substrate tape

123 delivery roller

124 ratchet

125 link

126 delivery rod

126a extension spring

127 gate

128 slits

129 take-up reel

130 gland

140 elements

141 component storage part

150 magnets

151 first magnet

152 second magnet

160 leaf spring

170 correction roller

180 electrodes

181 element body

Claims (12)

1. a tape feeder, for sending carrier band, this carrier band is provided with the element incorporating section of a plurality of rectangles on transport direction with predetermined distance, and described tape feeder possesses:

The first magnet, be set to be sent element take out region element incorporating section bottom surface below, and described the first magnet is set to extend along described transport direction below a side of the Width of described bottom surface, described the first magnet is configured and is arranged as the element that is sent the described element incorporating section in described element taking-up region is attracted to the side to described Width; And

The second magnet, be set to be sent described element take out region described element incorporating section bottom surface below, and described the second magnet is set to the rear at described transport direction with respect to described the first magnet, described the second magnet is configured and is arranged as the element that is sent the described element incorporating section in described element taking-up region is attracted to the rear to described transport direction

When the top of the bottom surface from described element incorporating section is observed, described the first magnet and described the second magnet form L word shape.

2. tape feeder as claimed in claim 1,

Described the first magnet and described the second magnet are integrated.

3. tape feeder as claimed in claim 1,

Described the first magnet is set to below half of described bottom surface.

4. tape feeder as claimed in claim 1,

Described the first magnet consists of elastomer.

5. tape feeder as claimed in claim 1,

Described tape feeder also possesses tabular elastomeric element, and this tabular elastomeric element is configured to support to be sent the bottom surface that described element takes out the described element incorporating section in region,

Described the first magnet, the face of the side that the side with waiting to put described bottom surface that is attached to described elastomeric element is contrary.

6. tape feeder as claimed in claim 1,

Described the first magnet, be set to be sent described element take out region a plurality of described element incorporating section bottom surface below.

7. tape feeder as claimed in claim 2,

The leading section of the transport direction of described the first magnet, is set to the below in 1/4th area portions of the area of described bottom surface.

8. a tape feeder, for sending carrier band, this carrier band is provided with the element incorporating section of a plurality of rectangles on transport direction with predetermined distance, and described tape feeder possesses:

The first magnet, be set to be sent element take out region element incorporating section bottom surface below, described the first magnet is set to along described transport direction, extend below a side of the Width of described bottom surface, and described the first magnet is configured and is arranged as the element that is sent the element incorporating section in described element taking-up region is attracted to the side to described Width; And

The second magnet, be set to be sent described element take out region described element incorporating section bottom surface below, and described the second magnet is set to the rear at described transport direction with respect to described the first magnet, described the second magnet is configured and is arranged as the element that is sent the element incorporating section in described element taking-up region is attracted to the rear to described transport direction

The leading section of the transport direction of described the first magnet, is set in the below of 1/4th area portions of the area of described bottom surface, and

When the top of the bottom surface from described element incorporating section is observed, described the first magnet and described the second magnet form L word shape.

9. tape feeder as claimed in claim 8,

Described the first magnet and described the second magnet are integrated.

10. carrier band is sent a method, in tape feeder, sends carrier band, and this carrier band is provided with the element incorporating section of a plurality of rectangles with predetermined distance at transport direction, and described method comprises:

Top by the bottom surface when from described element incorporating section forms the first magnet and second magnet of L word shape while observing, the element that the element that is sent tape feeder is taken out to the element incorporating section in region attracts to a side of the Width of the bottom surface of described element incorporating section and the rear of described transport direction;

Be sent described element take out region described element incorporating section bottom surface below, described the first magnet is set to along described transport direction, extend below a side of the Width of described bottom surface, and the element that is sent the element incorporating section in described element taking-up region is attracted to the side to described Width; And

Be sent described element take out region described element incorporating section bottom surface below, described the second magnet is set to respect to described the first magnet at the rear of described transport direction, and the element that is sent described element and takes out the element incorporating section in region is attracted to the rear to described transport direction.

11. carrier bands as claimed in claim 10 are sent method,

Described the first magnet and described the second magnet are integrated.

12. 1 kinds of carrier bands are sent method, in tape feeder, send carrier band, and this carrier band is provided with the element incorporating section of a plurality of rectangles with predetermined distance at transport direction, and described method comprises:

Top by the bottom surface when from described element incorporating section forms the first magnet and second magnet of L word shape while observing, the element that the element that is sent tape feeder is taken out to the element incorporating section in region attracts to a side of the Width of the bottom surface of described element incorporating section and the rear of described transport direction;

Be sent described element take out region described element incorporating section bottom surface below, described the first magnet is set to along described transport direction, extend below a side of the Width of described bottom surface, and the element that is sent the element incorporating section in described element taking-up region is attracted to the side to described Width; And

Be sent described element take out region described element incorporating section bottom surface below, described the second magnet is set to the rear at described transport direction with respect to described the first magnet, and the element that is sent the element incorporating section in described element taking-up region is attracted to the rear to described transport direction

The leading section of the transport direction of described the first magnet, is arranged on the below of 1/4th area portions of the area of described bottom surface.