JPH05110288A - Feeder for electronic part - Google Patents

Abstract

PURPOSE:To pick up an electronic part positively by a shifting head by bringing into contact and separating a suction with and from, a suction port in conformity with the pitch-feed of a tape and holding the electronic part through a notched hole when picking up. CONSTITUTION:When a sprocket 4 is rotated and a tape 2 is pitch-fed, a cover tape 2a is peeled from the tape 2 by a peeling pawl 5, and a notched hole 7 is opened to a bottom tape 2b by a cutter section 6 so as to be able to vacuum-chuck a chip P in a pocket 2c. The electronic part P is forwarded to the position Q of pickup, and held by the nozzle 51 of a shifting head 50 and picked up. When a cam 11 is turned by driving a motor 13, on the other hand, an suction section 9 is lifted and lowered being synchronized with the pitch-feed of the tape 2, and holds the electronic part p at the position Q of pickup by driving a suction apparatus 10. Accordingly, the electronic part can be picked up reliably by the shifting head.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for supplying electronic parts, and more particularly, to a device for preventing vibration at the time of picking up an electronic part to eliminate an error in picking up an electronic part by a transfer head.

[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. 2 is a side 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 the cover tape 103a attached to the upper surface of the tape 103 by the peeling member 106. At the pick-up position Q, the electronic component P stored in the pocket 104 of the tape 103 is adsorbed by the nozzle 105 of the transfer head 106, picked up, and transferred and mounted on the substrate.

[0004]

By the way, in recent years, the mounting speed of the electronic component P by the electronic component mounting apparatus has been increasing more and more, and in order to cope with this, the sprocket 10 is mounted.
The pitch feeding speed of the tape 103 by 2 is also increasing. Therefore, the electronic component P that has reached the pickup position Q by the pitch feed vibrates due to the aftershock of the pitch feed even after the feed is stopped, and thus the electronic component P stands up in the pocket 104 or jumps out. There was a problem that pick-up errors of the transfer head were likely to occur frequently.

Therefore, it is an object of the present invention to provide an electronic component supply apparatus capable of preventing vibration at the time of picking up an electronic component and eliminating a mistake in picking up the electronic component by a transfer head.

[0006]

To this end, the present invention provides a cutter portion provided on a guide member of a tape for opening a notch hole in a bottom tape attached to the lower surface of the tape, and a pickup for the guide member. A suction passage having an electronic component suction port formed at a position and a suction port formed on the lower surface of the guide member; a suction unit contacting with and separating from the suction port; a suction device connected to the suction unit; The suction port is provided with a contacting / separating unit for contacting / separating the suction unit, and by contacting / separating the suction unit with the suction port in accordance with the pitch feed of the tape, the electronic component has the cutout hole at the time of pickup. This electronic component is adsorbed via this to make the electronic component stand still.

[0007]

According to the above construction, the notch hole is opened in the bottom tape by the cutter portion before the pick-up position of the electronic component, and when the electronic component reaches the pick-up position, the suction portion becomes the suction port of the suction path. The electronic components are brought into contact with each other and are sucked through the cutout holes by driving the suction device. Thus, the vibration of the electronic component due to the aftershock of the pitch feeding by the pitch feeding means can be prevented, and the electronic head can be reliably picked up by the transfer head while the electronic component is completely stationary.

[0008]

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

FIG. 1 is a side view of essential parts of an electronic component supply apparatus according to the present invention. A is a tape feeder, 1 is a long plate-shaped guide member, and a sprocket 4 as a pitch feeding means for the tape 2 is provided in the front portion thereof. The driving means of the sprocket 4 includes a ratchet wheel 19, a feed pawl 20, and a link 21 connected to the feed pawl 20.
When the head 22a of the link 22 is pressed by the pressing portion 23, the feed pawl 20 swings around the pin 24 and the ratchet wheel 19 and the sprocket 4 rotate by pitch. When the sprocket 4 rotates by the pitch, the tape 2 is guided by the upper surface of the guide member 1 and pitch-fed.

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, and the cover tape 2a attached to the upper surface of the tape 2 by its leading edge.
Is peeled back and taken up by a take-up reel (not shown).

Reference numeral 6 denotes a knife-shaped cutter portion, which is provided in front of the pickup position Q of the guide member 1 and slits in the bottom tape 2b adhered to the lower surface of the tape 2 when the tape 2 is pitch-fed. The notched hole 7 is opened.
The cutout hole 7 is cut out by a suction device 10 (described later) for vacuum suction and fixing of the chip P in the pocket 2c of the tape 2. A suction port 8a is formed on the upper surface of the guide member 1, and is formed in a narrow groove shape from the pickup position Q to a position Q1 one pitch before. The suction port 8a communicates with the suction passage 8 penetrating the guide member 1, and the suction port 8b is formed on the lower surface of the guide member 1.

Reference numeral 9 is a pipe-shaped suction pipe, and 10 is a suction device connected to the suction pipe 9. Reference numeral 11 is a cam, 12 is a cam follower provided in the lower portion of the suction tube 9,
Reference numeral 13 is a motor for rotating the cam 11. These constituent parts 11 to 13 constitute a contacting / separating means for contacting / separating the upper end portion 9a of the suction pipe 9 with the suction port 8b.

When the cam 11 is rotated by the driving of the motor 13, the suction portion 9 moves up and down, and the upper end portion 9a thereof comes into contact with and separates from the suction port 8b. When the suction device 10 is driven with the suction portion 9 in contact with the suction port 8b, the pickup position Q
Then, the electronic component P that has reached the position Q1 one pitch before it is adsorbed to the lower surface of the pocket 2c of the tape 2 through the notch hole 7. As a result, it is possible to prevent the electronic component P from vibrating due to the aftershocks of pitch feed by the sprocket 4 and to make the electronic component P stand still, and to prevent the transfer head 50 from picking up the electronic component P.

Reference numeral 30 is a rail in the X direction provided on the base 31, 32 is a slider, and 33 is a table on which a large number of tape feeders A are placed. Reference numeral 34 is a nut provided on the lower surface of the table 33, 35 is a ball screw screwed to the nut 34, and 36 is a motor for rotating the ball screw 35. When the motor 36 is driven, the rail 3
The table 33 moves in the X direction along 0, and stops the tape feeder A having the desired type of electronic components at the pickup position Q.

The present apparatus has the above-mentioned structure, and its operation will be described below. Rotate sprocket 4 to tape 2
When the pitch feed is performed, first, the cover tape 2a is peeled from the tape 2 by the peeling claw 5, and the notch hole 7 is opened in the bottom tape 2b by the cutter portion 6 so that the chip P in the pocket 2c can be vacuum-sucked. Next, the electronic component P is sent to the pickup position Q, and the transfer head 5
It is adsorbed by the nozzle 51 of 0 and picked up.

On the other hand, when the cam 11 is rotated by driving the motor 13, the suction portion 9 moves up and down in synchronization with the pitch feed of the tape 2, and the suction device 10 is driven to suck the electronic component P at the pickup position Q. Therefore, the electronic component P
Will be picked up by the transfer head 50 in a completely stationary state, and a pickup error due to an aftershock of the tape 2 can be eliminated.

The present invention is not limited to the above-mentioned embodiment. For example, instead of the above-mentioned knife type cutter portion 6,
It is also possible to apply a rotary type cutter part having a cutting edge protruding on the peripheral surface of the roller.

[0018]

As described above, according to the present invention, a cutter portion provided in a guide member for opening a notch hole in a bottom tape attached to the lower surface of the tape, and an electronic component at the pickup position of the guide member. Suction port having a suction port formed on the lower surface of the guide member, a suction unit that comes into contact with and separates from the suction port, a suction device connected to the suction unit, and the suction port. And a suction / separation means for contacting / separating the suction part. The suction part is contacted / separated with the suction port in accordance with the pitch feed of the tape so that the electronic component is sucked through the notch hole during pickup. Therefore, it is possible to prevent the electronic components from vibrating due to the aftershock of the tape pitch feeding by the pitch feeding means, make the electronic components completely stationary, and reliably pick up the electronic components by the transfer head. Kill.

[Brief description of drawings]

FIG. 1 is a side view of a main part of an electronic component supply device according to the present invention.

FIG. 2 is a side view of a main part of a tape feeder according to a conventional means.

[Explanation of symbols]

 1 Guide member 2 Tape 2c Pocket 2b Bottom tape 4 Pitch feed means 6 Cutter part 7 Notch hole 8 Suction path 8a Suction port 8b Suction port 9 Suction part 10 Suction device 11 Contact / separation means 12 Contact / separation means 13 Contact / separation means P Electronic parts Q pickup position

Claims (1)

[Claims] 1. A guide member for guiding a tape in which an electronic component is housed in a pocket, and a pitch feeding means provided at a front portion of the guide member for feeding the tape along the upper surface of the guide member. And a bottom tape provided on the guide member and attached to the lower surface of the tape, in an electronic component supply device in which a transfer head picks up the electronic component at a pickup position of the electronic component. A cutter part that opens a notch hole in
A suction port for forming an electronic component is formed at the pickup position of the guide member and a suction port is formed on the lower surface of the guide member, a suction unit that comes into contact with and separates from the suction port, and is connected to the suction unit. A suction device and a contacting / separating means for contacting / separating the suction part to / from the suction port. By contacting / separating the suction part to / from the suction port in accordance with the pitch feed of the tape, the electronic component is picked up at the time of pickup. An electronic component supply device, characterized in that the electronic component is held stationary by suction through the cutout hole.