JP6709897B2 - Tape feeder - Google Patents

Description

The present invention relates to a tape feeder for feeding a component to a component feeding position by running a carrier tape holding the component.

Conventionally, a tape feeder is known as one of typical component supply devices in a component mounting device. The component mounting device is a device that sucks a component by a suction nozzle and mounts it on a substrate, and the tape feeder is a suction position of the component by the suction nozzle by running a carrier tape holding the component by a tape running mechanism. The component is positioned at the component supply position (for example, Patent Document 1 below). The tape running surface has a portion that guides the carrier tape in an arc shape due to the design restrictions of the tape feeder, and the carrier tape runs on the tape running surface while being bent in an arc shape at a plurality of locations.

JP, 2005-141910, A

However, as described above, in the portion where the carrier tape is guided in an arc shape, the friction received from the tape running surface is larger than that in the portion where the carrier tape is guided in a straight line, and the carrying load is high. This carrying load may cause a decrease in the carrying speed when the carrier tape is pitch-fed, a delay in the operation timing of the carrier tape with respect to the pitch drive, and further a jamming or a decrease in the positioning accuracy of the component with respect to the component supply position. There was a fear.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a tape feeder that can reduce the carrying load when the carrier tape runs on the tape running surface and can realize a stable feeding operation of the carrier tape.

The tape feeder of the present invention comprises: a main body having a tape running surface on which a carrier tape holding parts runs; and the carrier held on the carrier tape by running the carrier tape on the tape running surface. The tape traveling mechanism positions the component at the component supply position, and the roller member that is provided in the main body and supports the portion where the carrier tape guided by the tape traveling surface has an arc shape.

Another aspect of the tape feeder of the present invention is that the carrier tape is formed on a main body portion having a tape running surface on which a carrier tape holding a component runs, and the carrier tape is run on the tape running surface, A tape running mechanism for locating the part held at the part in a part feeding position, and an arc-shaped part sliding contact for sliding contact with a part of the main body part where the carrier tape guided by the tape running surface has an arc shape. A member, and the arcuate portion sliding contact member has a friction coefficient smaller than that of the material forming the tape running surface.

According to the present invention, the carrying load when the carrier tape is run on the tape running surface is reduced, and a stable feeding operation of the carrier tape can be realized.

Side view of a component mounting apparatus including a tape feeder according to an embodiment of the present invention 1 is a perspective view of a tape feeder according to an embodiment of the present invention. The perspective view which shows the carrier tape run by the tape feeder in one embodiment of this invention with some tape feeders. Side view of a tape feeder according to an embodiment of the present invention 1 is a perspective view of a part of a tape feeder according to an embodiment of the present invention. Side view of a tape feeder according to a modification of the embodiment of the present invention

Hereinafter, embodiments of the present invention will be described with reference to the drawings. A component mounting apparatus 1 shown in FIG. 1 is an apparatus for mounting a component 3 on a board 2, and includes a board transport section 12 and a component mounting section 13 on a base 11. A feeder base 15 that is moved by a carriage 14 is connected to the base 11, and a tape feeder 16 is attached to the feeder base 15 (FIG. 2).

In FIG. 1, the substrate transfer unit 12 is provided with a pair of conveyors 12a arranged in the Y-axis direction (front-back direction viewed from the operator OP), and the substrate 2 is moved in the X-axis direction (left-right direction viewed from the operator OP). ) To. The component mounting unit 13 is composed of a mounting head 13b having a suction nozzle 13a and a head moving mechanism 13c for moving the mounting head 13b in the horizontal direction. The mounting head 13b can move the suction nozzle 13a in the Z-axis direction (vertical direction) and can rotate the suction nozzle 13a around the Z-axis.

A plurality of tape feeders 16 are attached to the feeder base 15 side by side in the X-axis direction. As shown in FIG. 1, a carrier tape 18 drawn from a reel 17 held by a carriage 14 is introduced into each tape feeder 16 (see also FIG. 2), and each tape feeder 16 receives the carrier tape 18. By the pitch feed, the component 3 held on the carrier tape 18 is intermittently supplied to the component supply position 16K which is the suction position of the component 3 by the suction nozzle 13a.

As shown in FIG. 3, the carrier tape 18 has a structure in which a transparent cover tape 22 is attached to the upper surface of a base tape 21. The base tape 21 is provided with a plurality of component storage portions 23 arranged in a line, and the component 3 is stored in each component storage portion 23. The cover tape 22 covers each component storage portion 23 from above, and prevents the component 3 from falling out of the component storage portion 23. The feed holes 24 are provided in a line in a position parallel to the row of the component storage portions 23 of the base tape 21.

As shown in FIGS. 2 and 4, the tape feeder 16 includes a tape running mechanism 32, a tape pressing member 33, and a cover tape collecting mechanism 34 in a main body 31 that is detachably attached to the feeder base 15. A tape running surface 35 on which the carrier tape 18 runs is formed on the main body 31. In the present embodiment, the tape running surface 35 extends forward from the tape introducing port 31G (FIGS. 2 and 4) formed in the lower portion of the rear end of the main body 31 and then at the intermediate portion of the main body 31. It extends obliquely toward the upper front, and extends in front of the main body 31 while being exposed on the upper surface of the main body 31.

2 and 4, the tape running mechanism 32 includes a sprocket 41 provided at a position above and in front of the main body 31, and a drive motor 42 for intermittently rotating the sprocket 41 around the X axis. The sprocket 41 pitches the carrier tape 18 on the tape running surface 35 by engaging the outer peripheral teeth 41T (FIG. 3) with the feed hole 24 of the carrier tape 18 and rotating the carrier tape 18 (shown in FIGS. 2 and 4). Arrow A). As a result, the carrier tape 18 intermittently positions the component storage portion 23 (that is, the component 3) at the component supply position 16K.

2 and 4, the tape pressing member 33 is provided at a position above the front of the main body 31 and extends in the front-rear direction. The tape pressing member 33 covers a region near the portion of the carrier tape 18 traveling on the tape traveling surface 35, which engages with the outer peripheral teeth 41T of the sprocket 41 (that is, a region near the component supply position 16K). The carrier tape 18 is pressed from above. As shown in FIG. 5, in the tape pressing member 33, a component supply opening 33T provided to open the upper part of the component storage portion 23 located at the component supply position 16K, and the peeled cover tape 22 are drawn out. The groove 33M is provided to avoid interference between the slit 33S and the outer peripheral tooth 41T of the sprocket 41. The slit 33S is located behind the component supply opening 33T.

Here, the cover tape 22 is partially pulled out from the base tape 21 in advance by the operator OP and then pulled out rearward and upward from the slit 33S (FIGS. 2 and 5). Is guided to the cover tape collecting mechanism 34 provided above the intermediate portion of the. The cover tape collecting mechanism 34 intermittently pulls the cover tape 22 (arrow B shown in FIGS. 2, 4, and 5) in response to the tape feeding mechanism 32 feeding the carrier tape 18 by a pitch, and the main body portion 31. It is accommodated in a cover tape accommodating portion 36 formed at the rear part of the inside. Therefore, the cover tape 22 is peeled from the base tape 21 with the slit 33S as a peeling position, and when the component storage portion 23 reaches the component supply position 16K, the component storage portion 23 is in an exposed state not covered by the cover tape 22. .. Accordingly, the mounting head 13b can suck the component 3 located at the component supply position 16K by the suction nozzle 13a.

2 and 4, roller members 37 are provided at a plurality of locations (here, three locations) on the main body 31. Each of these roller members 37 is a cylindrical member that is rotatable around an axis parallel to the X-axis direction. Each of the plurality of roller members 37 supports the carrier tape 18 by coming into contact with the portion where the carrier tape 18 guided by the tape running surface 35 has an arc shape. These roller members 37 may be inserted into a shaft member provided in the main body 31 and rotated around the shaft member, or may be inserted in a cylindrical space having the main body 31 as a housing. It may be a rotating one.

In the present embodiment, as shown in FIGS. 2 and 4, rollers are provided on the rear end of the main body 31 (near the tape introduction port 31G), the lower center of the main body 31, and the upper front part of the main body 31. A member 37 is provided. The roller member 37 (denoted by 37a) provided at the rear end of the main body 31 is a carrier that advances toward the tape introducing port 31G in an arcuate path in the portion where the carrier tape 18 is introduced into the tape introducing port 31G. The lower surface of the tape 18 is supported. A roller member 37 (denoted by 37b) provided at the lower center of the main body 31 moves horizontally on the tape running surface 35 toward the front. The carrier tape 18 turns obliquely upward and moves on an arcuate path. In place, the upper surface of the carrier tape 18 is supported. The roller member 37 (reference numeral 37c) provided on the upper front portion of the main body portion 31 is provided at a position where the carrier tape 18 traveling obliquely upward on the tape running surface 35 turns to the horizontal front and travels in an arc orbit. , The lower surface of the carrier tape 18 is supported.

In the component mounting apparatus 1 having the above-described configuration, the control device C (FIG. 1) included in the component mounting apparatus 1 performs operation control of the board transport unit 12, the component mounting unit 13, the tape feeder 16, and the like. The substrate transfer unit 12 controlled by the controller C first carries in the substrate 2 sent from the upstream process side and positions it at the work position. Then, the tape feeder 16 operates to supply the component 3 to the component supply position 16K, and the head moving mechanism 13c reciprocates the mounting head 13b between the tape feeder 16 and the substrate 2. The mounting head 13b picks up the component 3 positioned by the tape feeder 16 at the component supply position 16K by the suction nozzle 13a through the component supply opening 33T, and mounts the picked-up component 3 on the substrate 2. When the mounting head 13b mounts all the components 3 to be mounted on the board 2 onto the board 2, the board transport unit 12 carries out the board 2 to the downstream process side.

In the process of mounting the component 3 on the substrate 2 as described above, each tape feeder 16 causes the component 3 held by the carrier tape 18 to be a component by causing the carrier tape 18 to travel on the tape running surface 35 by the tape running mechanism 32. It is located at the supply position 16K. At this time, since the roller member 37 supports the arcuate portion of the carrier tape 18 in the arcuate portion of the carrier tape 18 guided by the tape running surface 35, compared with the case where the roller member 37 is not provided. As a result, the carrying load of the carrier tape 18 is greatly reduced.

FIG. 6 shows a modification of the tape feeder 16. In FIG. 6, instead of the roller member 37, the material that constitutes the tape running surface 35 (here, the main body portion 31 is configured is formed in the portion where the carrier tape 18 guided by the tape running surface 35 comes into sliding contact with the arcuate portion. This is an example of the case where the arcuate portion sliding contact member 38 having a friction coefficient smaller than that of the material) is provided. Even with the configuration of this modification, it is possible to obtain the same effect as when the roller member 37 supports the arcuate portion of the carrier tape 18 guided by the tape running surface 35.

The installation positions of the roller members 37 (or the arcuate portion sliding contact members 38) at the above-mentioned three locations are merely examples corresponding to the shape of the tape running surface 35 provided in the tape feeder 16 in the present embodiment. Even when the shape of the tape running surface 35 is different from that of the tape feeder 16 in the present embodiment, the roller member 37 (or the arc-shaped portion slide) is provided at all or a part of the location where the carrier tape 18 advances in an arc. By providing the contact member 38), the carrying load of the carrier tape 18 can be reduced.

As described above, in the tape feeder 16 according to the present embodiment, the arcuate portion of the carrier tape 18 guided by the tape running surface 35 has less friction than the roller member 37 or the material forming the tape running surface 35. Since it is supported by the arcuate portion sliding contact member 38 having a coefficient, the frictional force received from the tape feeder 16 side by the carrier tape 18 guided in an arcuate shape by the tape running surface 35 is extremely small. For this reason, the carrying load when the carrier tape 18 is run on the tape running surface 35 is reduced, and a stable feeding operation of the carrier tape 18 can be realized.

(EN) Provided is a tape feeder which can reduce a carrying load when a carrier tape is run on a tape running surface and can realize a stable feeding operation of the carrier tape.

3 parts 16 tape feeder 16K parts supply position 18 carrier tape 32 tape running mechanism 35 tape running surface 37 roller member 38 arcuate part sliding contact member

Claims (3)

A main body portion having a tape running surface on which a carrier tape holding parts travels,
A tape running mechanism that positions the component held by the carrier tape at a component supply position by running the carrier tape on the tape running surface;
A tape feeder comprising: a roller member that is provided in the main body portion and that supports a portion where the carrier tape guided by the tape running surface has an arc shape. 2. The tape feeder according to claim 1, wherein the roller member supports a lower surface of the carrier tape which is guided by the tape running surface and has an arc shape. A main body portion having a tape running surface on which a carrier tape holding parts travels,
A tape running mechanism that positions the component held by the carrier tape at a component supply position by running the carrier tape on the tape running surface;
An arc-shaped portion sliding contact member that is provided in the main body portion and that slides in contact with a portion where the carrier tape guided by the tape running surface has an arc shape;
The tape feeder, wherein the arcuate portion sliding contact member has a friction coefficient smaller than that of a material forming the tape running surface.

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