JPH05152786A - Tape feeder - Google Patents

Abstract

PURPOSE:To provide a tape feeder equipped with a shutter means which can surely prevent the springing out of electronic parts sent to their picking-up positions from pockets. CONSTITUTION:This tape feeder is constituted of a shutter plate which opens or closes a pocket 2a at a picking-up position Q by rotating a shutter means 12 which prevents the springing out of parts P around a rotating shaft and a sliding member 13 which rotates the shutter plate when the member 13 is driven to make reciprocating motions by means of a pitch-feeding means 4.

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 prevent electronic components sent to a pickup position from jumping out of a pocket.

[0002]

2. Description of the Related Art In recent years, electronic components such as resistor chips, capacitor chips, ICs, and LSIs have become smaller and smaller, and the mounting speed has also increased in order to cope with higher density and higher integration of substrates. As means for mounting such an electronic component on a board,
Tape feeders are often used.

FIG. 5 is a perspective view of a main part of a tape feeder according to a conventional means, and FIG. 6 is a sectional view of the same. A shutter means 101 prevents the electronic component P from jumping out of the pocket 103 of the tape 102 when the electronic component P is pitch-fed to the pickup position Q of the transfer head 107. Reference numeral 104 is a cover plate that covers the tape 102 from above, 105 is a slide groove formed in the cover plate 104, 106 is a plate that reciprocates on the cover plate 104, and 106a is an electron projecting from the plate 106 and pitch-fed. A claw portion that presses the component P from above, is bent downward, and is slidably inserted into the slide groove 105.

When the plate 106 reciprocates in the direction of the arrow in conjunction with the pitch feed of the electronic component P, the claw portion 1 is accompanied by the pitch feed of the electronic component P to the pickup position Q.
06a slides the slide groove 105 toward the pickup position Q while pressing the electronic component P from above, and after the end of the pitch feed, the claw portion 106a moves the slide groove 10a.
5, the electronic component P is returned to its original position and the upper side of the electronic component P is opened, and the nozzle 108 of the head 107 picks up the electronic component P there.

[0005]

By the way, the electronic component P
In response to the recent high density and high integration of substrates, the size is becoming smaller and the mounting speed thereof is extremely high. As the electronic components P are downsized and mounted at high speeds in this manner, the pitch feed speed of the electronic components P is further increased, and thus the vibration associated with the pitch feed is also increased, so that the electronic components P are removed from the slide groove 105. May jump out to.

As a measure against this, in the conventional means, the slide groove 105 of the cover plate 104 is made as narrow as possible, and the upper surface of the electronic component P is linearly pressed by the lower surface of the claw portion 106a.
However, in this case, the claw portion 106a sliding in the slide groove 105 is inevitably thin, and if the electronic component P is displaced from the center position of the pocket 103 as shown by the chain line in FIG. Therefore, the claw portion 106a cannot press the center of the upper surface of the electronic component P, and the pressing of the electronic component P by the claw portion 106a becomes unstable.
The claw portion 10 for preventing the electronic component P from protruding from the inside
There was a problem that the original function of 6a could not be fully fulfilled.

The size of the electronic component P mounted on the board varies, and the width of the slide groove 105 and the claw portion 106a.
If the thickness of the electronic component P is changed according to the size of the electronic component P used, the electronic component P can be more reliably prevented from protruding from the pocket 103 or the slide groove 105. However, in the conventional tape feeder, according to the size of the electronic component P,
It is necessary to prepare tape feeders having different widths of the slide groove 105 and the thickness of the claw portions 106a, which increases the types of tape feeders, resulting in cost increase, and management of the tape feeder is troublesome. ..

Therefore, the present invention provides a tape feeder which can reliably prevent the electronic parts sent to the pickup position from jumping out of the pocket and can be applied to various electronic parts of various sizes. To aim.

[0009]

To this end, the present invention provides a shutter plate that opens and closes a pocket at a pickup position by rotating shutter means for preventing electronic parts from popping out of the pocket at a pickup position. And a sliding member that rotates the shutter plate by being reciprocated by being driven by the pitch feeding means.

[0010]

According to the above construction, when the sliding member is driven by the pitch feeding means to reciprocate, the shutter plate rotates about the rotation axis to open and close the pocket at the pickup position. The electronic component sent to the pickup position by the means can be pressed against the lower surface of the shutter plate to prevent the electronic component from jumping out of the pocket. Moreover, since the electronic components are pressed against the surface by the shutter plate, they can be applied to electronic components of large and small dimensions and have high versatility.

[0011]

Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 is a perspective view of a main part of a tape feeder according to the present invention. Reference numeral 1 is a long plate-shaped guide member, and a sprocket 4 and a ratchet wheel 9 as pitch feed means for pitch-feeding the tape 2 are provided on the front portion thereof. 5a,
5b is a lever connected to the rotary shaft 4a of the sprocket 4, 6 is a rocking plate having one end of the lever 5b rotatably mounted, 7 is a pin provided on the rocking plate 6, and 8 is Pressing part that can move up and down to press this pin, 3
Reference numeral 0 is a coil spring for returning the position of the plate 6. When the pressing portion 8 moves up and down, the pressing portion 8 presses the pin 7 to swing the plate 6, and the levers 5a and 5b also swing to rotate the sprocket 4 by a pitch. As a result, the tape 2 moves along the upper surface of the guide member 1 and the nozzle 1 of the transfer head 10
The pitch is fed toward the pickup position Q by 1.

In FIGS. 1 and 2, reference numeral 50 denotes a cover plate provided on the upper surface of the guide member 1, and at a pickup position Q of this cover plate 50, a through hole 51 for picking up an electronic component P is provided. This through hole 5
1, a pin escape slit hole 52 for the sprocket 4 is formed in the vicinity of 1.

A shutter means 12 is provided behind the pickup position Q, and reciprocates in the feeding direction of the tape 2 so that the electronic component P sent to the pickup position Q of the transfer head 10 jumps out of the pocket 2a. Prevent. Next, the shutter means 12 will be described in detail.

In FIGS. 1 and 2, reference numeral 13 denotes a plate-shaped sliding member which is bent in a hook shape and is reciprocally movable in the feeding direction of the tape 2 on the side edge portion of the cover plate 50. It is provided. A guide groove 14 extends in the feeding direction of the tape 2 and is formed on the side surface of the sliding member 13. Reference numeral 15 denotes a pair of guide pins which are provided on the side surface of the guide member 1 so as to be slidably fitted in the guide grooves 14. Reference numeral 16 is a groove extending in the vertical direction, which is cut out at the side end of the sliding member 13. Reference numeral 17 is a drive pin projectingly provided on the side surface of the ratchet wheel 9 and slidably fitted in the groove portion 16, and 18 is a projecting piece portion provided on the upper surface of the sliding member 13, at the tip portion thereof, The fitting groove 19 is cut out. When the plate 6 swings and the ratchet wheel 9 rotates by a pitch, the drive pin 17 reciprocally rotates by one pitch, which causes the drive pin 17 to rotate.
Is pressed against the side surface of the groove portion 16, and the sliding member 13 reciprocates in the feeding direction of the tape 2.

1 and 2, reference numeral 20 denotes a rotary shutter plate that opens and closes the pocket 2a at the pickup position Q and is rotatably provided on the lower surface side of the cover plate 50 near the pickup position Q. 20
Reference numeral a denotes a cutout portion formed in the shutter plate 20, and reference numeral 21 denotes a rotary shaft projectingly provided on the central portion of the shutter plate 20, which is loosely inserted in a shaft hole 53 bored in the cover plate 50.

Reference numeral 22 denotes a semicircular base plate, which has a pin hole 23 formed in the center thereof and a rotary shaft 21 protruding from a shaft hole 53.
The shutter plate 20 and the base plate 22 are rotatably integrated by being fitted. The shutter plate 20 and the base plate 22 have an end surface 22a of the base plate 22 as shown in FIG.
Then, the through hole 51 is fitted so as to be completely exposed from the notch portion 20a in a state where the inner side surface 20a 'of the notch portion 20a is parallel. In this state, the pocket 2a of the tape 2 is provided.
The electronic component P inside can be picked up by the nozzle 11.

2 and 3, reference numeral 24 is a base plate 22.
Is a hole formed at one end of the pin, and a pin 25 is fitted therein. The pin 25 is slidably fitted in the fitting groove 19 formed in the notch in the protruding piece 18. When the sliding member 13 reciprocates in association with the pitch feed of the tape 2 driven by the sprocket 4, the pin 25 is pushed by the side surface of the fitting groove 19, and the shutter plate 20 together with the base plate 22 center on the rotary shaft 21. And the pocket 2a of the tape 2 is opened and closed at the pickup position Q (see FIGS. 4A to 4C).

Specifically, in FIG. 4A, when the sliding member 13 is moved forward by the driving of the sprocket 4 when the electronic component P is fed to the pickup position Q, the electronic component P is also fed. The shutter plate 20 rotates in the direction of the arrow in the figure. Next, when the electronic component P reaches the pickup position Q in FIG.
A rotates 90 degrees from the position shown by the solid line in FIG. 9A to the lateral position shown by the broken line in FIG. 9B, and the shutter plate 20 closes the pocket 2a.

As described above, the electronic component P includes the shutter plate 2
Since it is sent to the pickup position Q while being lightly pressed from above by the lower surface of 0, the electronic component P can be prevented from jumping out of the pocket 2a. In addition, since the electronic component P is pressed against the lower surface of the shutter plate 20 as described above, the electronic component P can be prevented from popping out of the pocket 2a even if the electronic component P is large or small. That is, this shutter plate 20
According to this, since the electronic parts P of various sizes can be prevented from popping out, the tape 2 accommodating the electronic parts P of various sizes can be set in this tape feeder, and the versatility with respect to the type of the electronic parts P can be improved. It will be extremely expensive.

Next, as shown in FIG. 4 (b), when the sliding member 13 moves rearward, the shutter plate 20 rotates in the direction of the arrow in the same figure, and the through hole 5 as shown in FIG. 4 (c).
1 matches the cutout portion 20a, and the pocket 2a is opened. Then, the transfer head 10 moves up and down, the nozzle 11 picks up the electronic component P in the pocket 2a,
The electronic component P is transferred and mounted on the substrate.

The present apparatus has the above-mentioned structure, and its operation will be described below. As shown in FIG. 1, when the pressing portion 8 moves up and down and the sprocket 4 rotates, the tape 2 is pitch-fed to the pickup position Q, and the sliding member 13 reciprocates in the tape 2 feeding direction in conjunction with this pitch feeding. By doing so, the shutter plate 20 rotates about the rotation shaft 21,
The pocket 2a is opened and closed at the pickup position Q. When the pocket 2a is opened, the transfer head 10 moves up and down to pick up the electronic component P by the nozzle 11, and then the electronic component P is transferred and mounted on the substrate.
By repeating the above operation, the electronic components P are sequentially mounted on the substrate.

[0022]

As described above, according to the present invention, by rotating the shutter means of the electronic component about the rotary shaft, the shutter plate for opening and closing the pocket at the pickup position and the pitch feeding means are driven to reciprocate. Since it is composed of a sliding member that rotates this shutter plate by moving it, the electronic parts sent to the pickup position are pressed by the lower surface of the shutter plate to prevent the electronic parts from popping out of the pocket. You can Moreover, since the electronic components are pressed against the lower surface of the shutter plate in this manner, it is possible to prevent the electronic components of various sizes from popping out. Therefore, this tape feeder is provided with a plurality of types of tapes for storing electronic components of different sizes. And the versatility of the tape feeder with respect to the type of electronic component becomes extremely high.

[Brief description of drawings]

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

FIG. 2 is an exploded perspective view of the same.

FIG. 3 is a sectional view of the same.

FIG. 4 is a plan view showing opening and closing of the pocket.

FIG. 5 is a perspective view of a main part of a tape feeder according to a conventional means.

FIG. 6 is a sectional view of the same.

[Explanation of symbols]

 1 Guide Member 2 Tape 2a Pocket 4 Pitch Feeding Means 12 Shutter Means 13 Sliding Member 20 Shutter Plate 21 Rotation Axis P Electronic Component 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 feed means provided at a front portion of the guide member for feeding the tape along the upper surface of the guide member. And a shutter means for preventing electronic components sent to the pickup position of the transfer head from jumping out of the pocket, and the shutter means rotates about a rotation axis to move the pocket at the pickup position. A tape feeder comprising: a shutter plate that opens and closes; and a sliding member that is driven by the pitch feeding means to reciprocate to rotate the shutter plate.