JPH0575294A - Tape feeder - Google Patents

Abstract

PURPOSE:To smoothly pitch-feed a tape even if an electronic component is erected in a pocket of the tape by providing a tunnel for passing the component erected in the pocket of the tape due to a pickup mistake of a transfer head at a cover plate. CONSTITUTION:When a sprocket 4 is rotated, a cover tape 2a is peeled from a tape 2 by a peeling pawl 5 on the way, the tape 2 is then pitch-fed to a pickup position Q, where a transfer head 50 is vertically moved up or down to pick up an electronic component P by a nozzle 51, and the component is fed forward along the sprocket 4. Even if the component P is stood in the pocket 2b of the tape 2, the part is not held between the pocket 2b and a cover plate 22, but passed through a tunnel 23, circulated through the sprocket 4, and cut. Thus, even if the head 50 erroneously picks up the component P, the tape 2 can be smoothly pitch-fed.

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 that can smoothly feed the pitch of a tape even when an electronic component stands up in a tape pocket due to a pickup error.

[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 electronic components such as LSI on a substrate, a tape feeder is often used as a supply form of electronic components.

FIG. 3 is a sectional view of a main part of a conventional tape feeder, in which 101 is a guide member and 102 is a guide member 1.
01 is a sprocket as a pitch feeding means provided in the front part. The tape 103 led out from the supply reel (not shown) travels along the upper surface of the guide member 101 while being pitch-fed by the sprocket 102, and at the pickup position Q, the electronic components housed in the pocket 104 of the tape 103. P is adsorbed by the nozzle 105 of the transfer head, picked up, and transferred and mounted on the substrate.

In this case, since the electronic component P jumps out of the pocket 104 and a pickup error occurs, a shutter 106 is provided in front of the pickup position Q. A cover plate 107 is provided on the sprocket 102 to prevent the tape 103 from being lifted up and separated from the sprocket 102.

[0005]

However, the electronic component P
Electronic component P is in pocket 1 due to a pickup error
There is a case where it is left inside the pocket 104 while standing up in 04. Tape 10 in this state
When 3 is pitch-fed, the electronic component P becomes pocket 104.
The tape 103 is sandwiched between the cover 103 and the cover plate 107.
There was a problem that the sending of the mail was obstructed.

Therefore, an object of the present invention is to provide a tape feeder which solves the problems of the above-mentioned conventional means.

[0007]

To this end, the present invention provides a guide member for guiding a tape in which electronic components are stored in a pocket, a tape supply reel provided at a rear portion of the guide member, and the guide. Pitch feed means provided on the front part of the member for pitch-feeding the tape along the upper surface of the guide member, and tape fed on the pitch-feed means above the pitch-feed means. In the tape feeder having a cover plate for preventing the floating of the tape, a tunnel portion is provided in the cover plate for passing an electronic component that has risen in the pocket of the tape due to a pickup error of the transfer head.

[0008]

According to the above construction, even if an electronic component stands up in the pocket of the tape due to a pickup error of the transfer head, the electronic component passes through the tunnel portion without being sandwiched between the pocket and the cover plate. Since the tape feeding is not hindered, the electronic components can be supplied to the transfer head while smoothly feeding the tape at the pitch.

[0009]

Embodiments of the present invention will now be described with reference to the drawings.

FIG. 1 is a perspective view of a tape feeder. 1
Is a long plate-shaped guide member, a supply reel 3 for the tape 2 is provided at the rear portion thereof, and a sprocket 4 as a pitch feeding means for the tape 2 is provided at the front portion thereof. When the sprocket 4 rotates by a pitch, the tape 2 is guided by the upper surface of the guide member 1 and the transfer head 5 is moved.
The pitch is fed toward the pickup position Q by the nozzle 51 of 0.

Reference numeral 5 denotes a peeling claw of the cover tape 2a provided on the upper surface of the substantially central portion of the guide member 1. The peeling claw 5 is pressed against the upper surface of the tape 2, and the tip edge 5 a of the peeling claw 5 causes the cover tape 2 a attached to the upper surface of the tape 2 to be folded back and peeled off, and taken up by the take-up reel 10.

In FIGS. 1 and 2, reference numeral 20 denotes a shutter provided behind the pickup position Q, which is reciprocated in the feeding direction of the tape 2 by means not shown to open and close the pickup position Q. The electronic component P is prevented from jumping out of the pocket 26. Reference numeral 21 denotes a frame attached to the front end portion of the guide member 1. In this frame 21, one end portion of the cover plate 22 is provided with a pin 24.
It is rotatably attached by a shaft. This cover plate 22 is urged downward by a spring (not shown), and the tape 2
Prevents the sprocket 4 from rising and coming off.

Reference numeral 23 denotes a tunnel portion formed in the cover plate 22, which is provided along the pitch feed path of the electronic component P. Even if the electronic component P stands up in the pocket 2b of the tape 2 due to a pickup error of the transfer head 50, the electronic component P is not sandwiched between the pocket 2b and the cover plate 22, and the tunnel portion 23
Since it passes through the tape, the feeding of the tape 2 is not hindered,
The pitch can be fed smoothly.

This apparatus has the above-mentioned structure, and its operation will be described below. When the sprocket 4 rotates as shown in FIG. 1, the tape 2 is peeled off the cover tape 2a by the peeling claw 5 and then pitch-fed to the pickup position Q. In FIG. Then, the electronic component P is picked up by the nozzle 51, then sent forward along the sprocket 4, and the tape 2 is cut and discarded by the cutter 30. Even if the electronic component P stands up in the pocket 2b of the tape 2 due to a pickup error of the transfer head 1 or the like, this portion passes through the tunnel portion 23 without being sandwiched between the pocket 2b and the cover plate 22. After being rotated around the sprocket 4, it is cut by the cutter 30. As described above, according to this means, even if the transfer head 50 makes a mistake in picking up the electronic component P, the electronic component P can be supplied to the transfer head 1 while the tape 2 is smoothly fed by the pitch.

[0015]

As described above, according to the present invention, the guide member for guiding the tape in which the electronic parts are housed in the pocket, the tape supply reel provided at the rear portion of the guide member, and the guide member are provided. Pitch feeding means provided on the front part for pitch feeding the tape along the upper surface of the guide member, and lifting of the tape fed above the pitch feeding means and fed along the pitch feeding means. In the tape feeder having a cover plate for preventing the transfer head, the cover plate is provided with a tunnel section for passing an electronic component that has risen in the tape pocket due to a pickup error of the transfer head. Due to a mistake, even if an electronic component stands up in the tape pocket, Without being sandwiched between the pocket and the cover plate, so go through the tunnel portion, the feed of the tape without being inhibited, can be carried out smoothly pitch feed.

[Brief description of drawings]

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

FIG. 2 is a sectional view of the same main part.

FIG. 3 is a cross-sectional view of a main part of a conventional tape feeder.

[Explanation of symbols]

 P electronic component 1 guide member 2 tape 2b pocket 3 supply reel 4 pitch feed means 22 cover plate 50 transfer head 23 tunnel section

Claims (1)

[Claims] 1. A guide member for guiding a tape in which electronic parts are stored in a pocket, a tape supply reel provided at a rear portion of the guide member, and a guide member provided at a front portion of the guide member. Pitch feed means for pitch-feeding the tape along the upper surface of the member, and a cover plate above the pitch feed means for preventing the tape fed along the pitch feed means from rising. In the tape feeder, the cover plate is provided with a tunnel portion for passing an electronic component that has risen in the pocket of the tape due to a pickup error of the transfer head.