JPS61114592A - Chip tape cassette with trigger for automatic chip mounting apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention ■)...Industrial Application Field The present invention relates to a tinoptape used for automatic chip mounting for automatically mounting chips (various chip-shaped electronic components) onto a printed circuit board. This relates to the configuration of the case note.

The chip mount cassette sets several lθ to several 100 cassettes per automatic chip mounter, and a high-speed moving head chucks the chips one by one, and before mounting the printed circuit board cassette, the chips are Peel off the top tape of the Chinobu tape taped to expose the chip, and send it out in a state where the head can easily chuck it, usually one chip at a time.
Each cassette is provided in a cassette type that is detachable and replaceable with respect to the automatic chip mounting device, so that continuous supply of chips can be performed simply by replacing the cassette without stopping loading.

Therefore, the tip tape case with a trigger of the present invention has an intermittent pitch sending action and a top tape of the tip tape to be sent out to expose the chips. This invention relates to an improvement in the invention in which a mechanism for performing the action is made to perform the action accurately with an extremely simple structure. It is characterized by the formation of corresponding recessed portions, thereby making it possible to exhibit excellent functions and effects as described below.

■)...Configuration: 1. To explain the configuration of the trigger-equipped tinoptape case of the present invention with reference to an embodiment, a fan-shaped tape with a narrow opening angle is mounted on a base 3 on which a reel 2 on which a tip tape l is wound is suspended. The main part of the plate ψ is pivoted with a pivot S so that it can rotate freely in an arc, and the upper part of the sector plate ψ and the base 3
A spring 6 is stretched between them to urge the fan-shaped plate ψ to the right, and a driving force transmission point 7 is set at the approximate center of the plate ψ, and a lever t with a protruding claw t at the tip is connected to the fan-shaped plate ψ. A pivot 10 is pivotally attached to the upper part of the lever 7, and a spring 11 is stretched between the rear end of the lever 7 and the fan-shaped plate ψ to urge the claw 1 upward, and the guide rail 2 is pulled out from the reel 2. 2. Insert the above lever 9 into the pitch hole /a of the chip tape L inserted between 12'
At the same time, the peeled top tape /b is wound around the top tape winding reel 13 with a one-way clutch mounted on the upper part of the base 3, and the reel 13 and For example, a stripe 11 ring/lA is stretched between the upper extension ends φa of the fan-shaped plate φ to bias the reel 13 in the winding direction of the top tape/b, and the spring/<
In the chip tape cassette, which is appropriately connected by fitting an outer cylinder/3 of a set length to the base 3, a recess 16^ is provided at the upper position of the drive transmission point 7 of the fan-shaped plate φ, and the fan-shaped plate φ in the base 3 is connected to the chip tape cassette. A trigger 17 in the form of a rectangular plate is attached to the front position so as to be movable up and down and rotatable by a set dimension by means of a support shaft /q that is inserted into the elongated hole /1 in the approximate center and screwed onto the base 3. The part O faces the recess 16 of the fan-shaped plate ψ, and the upper end faces the guide rail 12.
protruding upwards.

A spring 3 is stretched between the pin 21 fixed to the trigger 77 and the stopper pin 22 fixed to the base 3, and its elastic contraction force constantly urges the trigger 7 upward and presses it against the stopper pin 22. It is something that

■)...Function In the above configuration, the trigger-equipped chinobutape casenote of the present invention is first positioned at the raised position of the trigger 17, that is, at the normal position (support shaft/,
? is pressed against the lower end of the elongated hole lr with a tin 11 ringer), when the lower end of the trigger 17, for example, the roller 2tA pivotally supported at the core, is pushed by the press bar 2s driven by an air cylinder or the like, the trigger 17 is pressed against the support shaft. 19, but the protrusion O enters into the recess 16 of the fan-shaped plate ψ, so the fan-shaped plate ψ does not rotate.

Next, the trigger 17 is pressed down against the contractile force of the spring 23 by an appropriate means such as driving by a separate air cylinder, and in the operating position (the support shaft 19 is in pressure contact with the upper end of the elongated hole tr), the roller When 2tA is pushed, the trigger gun 7 rotates and collides with the driving force transmission point 7 of the fan-shaped plate t, so that the fan-shaped plate ψ extends the spring 6 and rotates in a set angle arc, and the claw of the lever 9 t is off the pitch hole/a of the chip tape l and the setting dimension (usually l pitch P feed 94
Q) It moves backward and engages the pitch hole /a at the retreated position, and also spring l by the rotation of the upper extension end '4a of the fan shaped plate
tA is pulled to rotate the reel 13 at a set angle, and the top tape/b is peeled off from the tinop tape l and wound up.

In addition, in the case of the upper side, the top tape /b by the reel 13
As described above, the winding rotation of is performed via the spring IJ ring lψ, so the elasticity of the spring IJ ring llA plays the role of tension adjustment to keep the peeling force constant. Even if the winding diameter of the top tape/b changes in size, the peeling force of the top tape/b does not change.

Next, when the suppression bar 25 retreats and the suppression of the roller 2φ is released, the fan-shaped plate ψ returns to its origin and rotates due to the restoring force of the spring B. Therefore, the lever 9 moves forward, and its pawl t causes the above-mentioned operation. The top tape /b has already been peeled off and the chip t has been exposed.
l Pitch feed 4) Send. That is, the exposed chip t is sent out to a predetermined size. Also, the upper extension end ψ of the sector plate φ
With the return rotation of a, the extended suffling l/ contracts, and at the same time, the outer cylinder /3 of the set length fitted around its outer circumference becomes ≠ a%.
The spring 13 acts as a tension between the connection points lφ and rotates the reel 13 back. At this time, since the reel 13 is installed on the one-sided clutch, it spins idly regardless of the top tape /b. Note that the above-mentioned connection structure between the upper extension end φa and the reel 13 is not limited to the upper side, and any connection structure may be used as long as it performs the same function.

In addition, as mentioned above, the claws return when the fan-shaped plate is moved forward,
The reel 13 rotates to peel off and wind up the top tape /b, and during the return movement, the tip tape l is sent out in pitch, and the reel 13 is provided so that it spins idly.According to this, it can be used for both cases. Since each action is performed individually, each action is reliably performed without being affected by the other action, and there is no need to use a very strong spring 6 which plays the role of the driving force for the action.

Further, in synchronization with the retreat of the press bar 2s, the downward pressure on the trigger 7 is released, and the trigger 17 returns to its original position by the contraction force of the sprinkler 3.

The chips exposed and delivered as described above are appropriately chucked by the head and transferred onto the printed circuit board.

■)...Effect (1)...Since the trigger is attached and a recess is formed in the fan-shaped plate, the fan-shaped plate rotates only when the trigger is suppressed and lowered by an appropriate means. The peeling and winding of the top tape by the movement and the feeding of the tip tape to a fixed size by the backward movement are performed separately.

This means that, for example, when several tens to hundreds of tinoptape cassettes of the present invention are installed in an automatic chip mounting device, all the operations required to rotate the fan-shaped plates of all the cassettes once are performed. - The rotation of the fan-shaped plate, that is, the peeling of the top tape, by depressing the trigger only for the desired cassette according to the program, by setting the trigger to be performed simultaneously (thus eliminating the need for a configuration that operates for each individual cassette); It has the advantage of winding up and feeding out the chip tape, and therefore has a structure that operates all the cassettes at the same time as described above, while also having a head that moves at high speed and chucks the chips according to the flocram at the position of each cassette. The following (
In combination with the effect of item 2), it is possible to significantly improve the precision and speed of chip mounting work.

(2)...In the present invention, the operation is as explained above.

(1) Forward movement of the fan-shaped plate (the top tape of the chips being pushed out by the suppression bar is peeled off and wound onto the reel. Note that the number of chips chucked by the head due to the previous peeling action is The top tape has already been peeled off, and this time the peeling is performed on the top tape on the subsequent chip as well.

(11) The top tape is peeled off by the backward movement of the fan-shaped plate (pulled back by the contraction force of the spring), and the chip tape with exposed chips is sent to a fixed position.

(iii), that is, the peeling and winding of the top tape (forward) and the feeding (return) of the chip tape are performed separately;
Therefore, for example, if the trigger is pressed at the same time as the head reaches the target cassette, while the head is chucking the chip, the metronob tape at the rear position is peeled off and wound onto the reel.The head chucks the chip. At the same time, the chip tape from which the top 4 has been peeled off is fed to a fixed position.

Therefore, when the head chucks the chip, it is performed on the chip that is already exposed and in a fixed position, and the chip tape that is used to feed a new chip is sent out only after the head has moved. It is not necessary to perform the process at high speed. That is, it can be performed slowly and accurately. Furthermore, since there is no need for high-speed delivery and only one-way backward movement, a strong spring is not required to move the fan-shaped plate backward.

(iv) In this respect, all conventional tinoptape cases perform the two functions of peeling off the top tape and sending out the tip tape at extremely high speeds at the same time in time with the arrival of the head. In addition, the mechanism is complicated and the springs and other elements that act on it need to be strong. Due to the high-speed movement of the tip tape and the imaging generated by the mechanism, the extremely small and lightweight tip dances, flips over, etc. It has the disadvantage of jumping out of the hole.

In addition, no matter how fast the speed is increased, the chip delivery and peeling time +
The minimum amount of time required to chuck the chip with the head has been considered the limit for speeding up.

(■) In contrast to the above, the present invention allows the delivery of the chip tape to
It is best to do this slowly while the head is away, and
The mechanism is simple and does not use strong springs that can cause vibrations, so there is no risk of chips dancing, tipping over, or jumping out, making the head capable of accurately and quickly chucking chips. Do vine.

In addition, in the case of the present invention, while the head is chucking the chip, the top tape is peeled off, which is a separate action, and the chip is sent out while the head is not present. No matter what time the chip reaches the cassette, it can immediately chuck the chip, which has an excellent feature that allows the speed to be increased several times compared to the conventional method.

Figure t4x is a diagram schematically showing the structure of an embodiment of the trigger-equipped chig and cassette of the present invention.

Number, l...Chip tape, /a...Binotihole, /b
...Top tape, Core...Reel, 3...Base, Hiroshi...Sector plate, tAa...Top extension end, S...
Pivot, 6...Spring, 7...Rumble force transmission point, Za...Claw, q...Lever, IO...Pivot, ll...
·spring,! 2, /J'...Guide rail, /3
...Reel, l<4...Spring, /! f
... 4su ('mark 4, l 6...
Recessed part, l7...Trigger, hole, /q...Spindle, 20...Protrusion,! /・
...Pin, 22...Stonohahin, 23...Spring, Yuψ...Roller, 2S...Press bar.

Claims (1)

[Scope of Claims] 1) The main part of a fan-shaped plate is pivotally pivoted on a base on which a reel of chip tape is suspended, and a spring is stretched between the upper part of the fan-shaped plate and the base. to urge the fan-shaped plate to the right, and use the vicinity of the center of the plate as a driving force transmission point, and a lever with a protruding claw at the tip is swingably pivoted to the upper part of the fan-shaped plate. A spring is placed between the rear end of the lever and the fan-shaped plate to urge the claw upward, and the claw of the lever is removably engaged with the pitch hole of the tip tape drawn from the reel and inserted between the guide rails. In addition, in a chip tape cassette, the peeled top tape is wound around a reel equipped with a one-way clutch suspended above the base, and the reel and the upper extension end of the fan-shaped plate are connected by a spring or the like. A recess is formed at the upper position of the driving force transmission point of the fan-shaped plate, and a trigger is installed at the front position of the fan-shaped plate on the base so that it can be moved up and down by a set dimension and rotated by a set angle by a support shaft, etc. The lower end protrusion faces the recess, a spring is stretched between the trigger and the stopper on the base, and its elastic contraction force constantly urges the trigger upward and presses it against the stopper. Chip tape cassette with automatic mounting device trigger.