JP2964773B2 - Tape feeder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tape feeder,
More specifically, the present invention relates to a tape feeder provided with a peeling claw for peeling a cover tape adhered to a tape containing electronic components.

[0002]

2. Description of the Related Art Resistor chips, capacitor chips, ICs,
2. Description of the Related Art In an electronic component mounting apparatus that automatically mounts an electronic component such as an LSI on a substrate, a tape feeder is frequently used as a supply form of the electronic component.

FIG. 8 shows a conventional tape feeder, 101 is a base, and 102 is a sprocket provided at the front of the base 101. The tape 103 led out from a supply reel (not shown) travels along the upper surface of the base 101 while being pitch-fed by the sprocket 102, and folds back the cover tape 103a adhered to the upper surface of the tape 103 by the peeling claw 112. By peeling off, the electronic components housed in a pocket (described later) of the tape 103 are exposed, and at the pickup position, the tape 103 is removed.
The electronic component P stored in the pocket of the transfer head 10
The nozzle 105 is sucked and picked up. The peeled cover tape 103a is taken up by the take-up reel 115.
It is wound up.

[0004] In this case, if the tape 103 rattles, a pick-up error occurs. Therefore, the base 101 is provided with two opening / closing covers 106 and 107 as means for holding the tape 103. One cover body 10
6 is axially mounted on the pin 108 and is pressed against the upper surface of the base 101 by the spring force of the wire spring 109. The other cover body 107 is pivotally mounted on a pin 110,
Due to the spring force of the leaf spring 111, it is pressed against the upper surface of the base 101.

FIG. 9 is an enlarged cross-sectional view showing the vicinity of the pickup position, in which an opening 113 is opened in the cover body 107. To enter the,
The electronic component P in the pocket 114 is picked up by the nozzle 105 from the opening 113. The peeling claw 112 is fixed to the tip of the opening / closing cover body 106 with a screw 116.

[0006]

By the way, the cover 1
If the distance G between the sheet 07 and the peeling claw 112 is too small, the cover tape 103a is sandwiched between the both 107 and 112 and cannot be wound on the take-up reel 115. If the interval G is too large, the minute electronic component P jumps out of the interval G or stands up in the pocket 114, so that the pickup error by the transfer head 104 frequently occurs. In particular, in recent years, the number of ultrafine electronic components has increased, and there has been a tendency for troubles such as jumping out and standing up to occur frequently.

In order to solve the above-mentioned trouble, the interval G must be properly set. Conventionally, this interval G
When the peeling claw 112 is fixed to the cover body 106 with the screw 116, it is set appropriately by visual observation. Therefore, the interval G varies, and there is a problem that the above-described trouble is likely to occur.

Accordingly, it is an object of the present invention to provide means for easily setting a separation claw and a cover at an appropriate distance.

[0009]

SUMMARY OF THE INVENTION According to the present invention, a passage portion through which a cover tape that has been peeled back from a peeling claw passes through a pressing portion where the tip of a peeling claw is pressed against an end surface of a cover body. A notch was formed, and the peeling claw was slidably disposed on the base, and fixing means for pressing the distal end surface of the peeling claw against the end surface of the cover body to fix the peeling claw on the base was provided. Things.

[0010]

In the above construction, the peeling claw is fixed on the base by a fixing means such as a screw after pressing its tip against the end face of the cover body. In this case, the size of the interval through which the cover tape peeled off by the peeling nail passes is determined by the depth of the passage opening. Therefore, if the notch forming accuracy of the passage opening is correctly determined, the passage opening at an appropriate interval can be easily secured between the peeling claw and the cover body.

[0011]

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view of a tape feeder. 1
Is a long plate-shaped base, at the rear of which a supply reel 3 for the tape 2 is provided, and at the front thereof, a tape 2 is provided.
A sprocket 4 is provided as a pitch feed means. When the sprocket 4 rotates, the tape 2 becomes the base 1
Of the transfer head 50 toward the pickup position Q by the nozzle 51 of the transfer head 50.

Reference numeral 5 denotes a peeling claw of the cover tape 2a provided on the upper surface of a substantially central portion of the base 1 (see also FIG. 2). The peeling claw 5 is attached to the tip of the opening / closing cover 6. The opening / closing cover 6 is mounted on a pin 7 and is repelled downward by a linear spring member 8.

In FIG. 1, reference numeral 9 denotes a bracket mounted on the side wall surface of the base 1, and a claw-shaped engaging element 11 is pivotally mounted on the bracket 9 by a pin 12 as shown in FIG. Reference numeral 13 denotes a spring material for urging the engaging element 11. The engaging element 11 is provided with an engaging portion 1 opened at a rear portion of the opening / closing cover 6.
4 so as to freely engage and disengage.

With the claw portion 11a of the engaging element 11 disengaged from the engaging portion 14, the opening / closing cover 6 is urged downward by the spring force of the spring member 8, and the peeling claw 5 is placed on the upper surface of the tape 2. The tape 2 is pressed by its leading edge 5a.
The cover tape 2a stuck on the upper surface of the cover is peeled off and wound around the take-up reel 10 (see FIG. 1).

For exchanging the tape 2 or the like, the peeling claw 5
To open the cover, as shown in FIG.
Is pressed downward with a fingertip. Then, the claw portion 11a of the engaging element 11 is engaged with the engaging portion 14, and the opening / closing cover 6 and the peeling claw 5 are kept open (see the chain line in FIG. 5). Thus, by holding the opening / closing cover 6 and the peeling claw 5 in the open state, the tape 2 can be removed from the upper surface of the base 1,
Exchange of the tape 2 such as insertion into the upper surface of the base 1 can be easily performed.

To return to the original position, the head of the engaging element 11 is pushed rightward in FIG. 5 with a fingertip. Then the claw 11
a is disengaged from the engaging portion 14, and by the spring force of the spring material 8,
The opening / closing cover 6 is resiliently swung clockwise, and the peeling claw 5 is pressed against the upper surface of the tape 2. According to this means as described above,
The opening and closing of the peeling claw 5 can be easily performed by one-touch operation of the fingertip.

1 and 2, reference numeral 21 denotes a frame mounted on the front end of the base 1. One end of a plate-shaped cover body 22 is rotatably mounted on the frame 21 by pins 23. Have been. The pin 23 is supported by a vertically long slot 24 formed in the frame 21.
The pin 23 is urged downward by a coil spring material 25. As shown in FIG. 1, the cover body 22 has a groove 26 into which the pin 4a of the sprocket 4 is fitted,
Pickup position Q of electronic components P stored in tape 2
A window portion 27 for exposing at is opened.

Reference numeral 31 denotes a lever-like engaging means rotatably mounted on a side wall surface of the base 1 by a pin 32. The engaging means 31 is urged clockwise by a coil spring material 33 and has an upper end portion which is detachably engageable with an engaging portion 28 formed by cutting out a free end of the cover body 22 at the free end. Is provided.

FIG. 3 shows a state in which the cover body 22 is closed. In this state, the cover body 22 is
The both ends are urged downward by the spring force of 3, so that the tape 2 on the base 1 can be firmly pressed down. By firmly pressing the tape 2 in this manner, it is possible to eliminate a pickup error of the electronic component P by the transfer head 50 (see FIG. 1).

In FIGS. 1 and 4, reference numeral 41 denotes a drive lever which is mounted on the side wall of the base 1. The arm part 41
A is provided with a roll-shaped pressed portion 42.

In FIG. 4, reference numeral 43 denotes a presser on the machine side. When the presser 43 descends and presses the pressed portion 42 downward, the drive lever 41 swings counterclockwise, and the sprocket 4 After the pitch rotation, the tape 2 is fed by the pitch. The pitch rotating means of the sprocket 4 is a known means. 44 is a stopper that regulates the rotation limit of the drive lever 41, and 45 is an elastic cushion member mounted on the stopper 44. This cushion member 4
5 prevents the chip P in the pocket of the tape 2 from rattling due to the impact when the drive lever 41 hits the stopper 44.

FIG. 6 is an exploded view of a main part. Two screw holes 49 are formed in the peeling claw 5, and two long holes 46 are formed in the front end of the cover 6. The peeling claw 5 is fixed to the cover 6 by a screw 29. In this case, the position of the peeling claw 5 can be adjusted by slightly sliding in the longitudinal direction N. In the end face 22a of the cover body 22, which is a pressing portion, a passage opening 47 for the cover tape 4a is partially notched so as to be extremely shallow.

FIG. 7 shows a method of assembling the peeling claw 5. As shown in FIG. 7A, the exfoliation claw 5 is slid so that the distal end surface thereof comes into contact with the end surface 22a of the cover body 22, and then the screw 29 is tightened as shown in FIG. 7B. Then, the peeling nail 5 is fixed to the cover 6. In this state, an interval G for allowing the cover tape 2a to pass is ensured between the peeling claw 5 and the cover body 22. The interval G is set to the passage opening 47 formed by cutting the cover body 22. Is determined by the depth (depth). Therefore, if the notch forming accuracy of the passage opening 47 is increased, the desired gap G can be easily secured. As described above, according to this means, the desired gap G can be easily and surely secured as long as the tip of the peeling claw 5 is pressed against the end face 22a of the cover body 22 and assembled. For example, in the case of an electronic component P having a width dimension of 0.5 mm, the interval (depth of the passage 47) G is about 0.2 mm.

[0025]

As described above, according to the present invention, a gap of a desired size can be easily secured between the peeling claw and the cover body by the simple assembly of the peeling claw, the cover tape cannot be cut off, and the electronic device can not be used. Troubles such as jumping out of the space between parts or standing up can be reliably prevented.

[Brief description of the drawings]

FIG. 1 is a perspective view of a tape feeder according to the present invention.

FIG. 2 is a partial side view of the tape feeder according to the present invention.

FIG. 3 is a partial side view of the tape feeder according to the present invention.

FIG. 4 is a partial side view of the tape feeder according to the present invention.

FIG. 5 is a partial side view of the tape feeder according to the present invention.

FIG. 6 is an exploded perspective view of a main part according to the present invention.

FIG. 7 is a sectional view of the peeling nail according to the present invention during assembly.

FIG. 8 is a partial side view of a conventional tape feeder.

FIG. 9 is a partial sectional view of a conventional tape feeder.

[Explanation of symbols]

 Reference Signs List 1 base 2 tape 2a cover tape 3 supply reel 4 pitch feeding means 5 peeling claw 22 cover body 22a end face 29 fixing means 46 fixing means 47 passage opening 49 fixing means G interval

Claims (1)

(57) [Claims] 1. A base for guiding a tape containing electronic components, a tape supply reel provided at a rear portion of the base, and a tape pitch feeding means provided at a front portion of the base. An openable and closable cover body that covers the tape that is pitch-fed along the upper surface of the base from above at the pickup position of the transfer head, and is adhered to the upper surface of the tape at an upstream side of the cover body. and a peeling claw for peeling the cover tape, the peeling claw on the end face of the cover body
In the pressing portion pressed against the distal end surface, a passage opening through which the cover tape peeled back and peeled off from the peeling claw is partially notched, and the peeling claw is slidably disposed on the base. And a fixing means for pressing the distal end surface of the peeling claw against the end surface of the cover body to fix the peeling claw on the base.