JPS6242528Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a supply device for capacitor elements in an electrolytic capacitor manufacturing process, and more specifically, in an automatic capacitor assembly machine, a single-lead type electrolytic capacitor element supplied from a parts feeder is This invention relates to a device that automatically guides and supplies capacitor lead wires to holes in a rubber bushing held in a head on a turntable of a capacitor assembly machine while regulating the direction of lead wires of the same polarity so that they are always in a fixed direction.

The lead wires of this type of capacitor are flexible and bend easily, so before supplying such capacitors to an automatic assembly machine, the lead wires must be straightened and shaped in advance, and the direction of the lead wires must be adjusted. need to be supplied.

However, in order to supply capacitor elements through a plurality of processes as described above, there is a problem that the entire supply apparatus including the capacitor transport mechanism, direction regulating mechanism, etc. becomes extremely large and complicated, making it uneconomical.

In particular, as a conventional means for aligning the lead wire polarity, the length of the two lead wires is determined in advance according to the polarity, and the polarity of the lead wires is electrically detected. There is a method of rotating the capacitor elements to align the polarities using attitude correction means controlled by this detection signal, but such means require an electrical polarity detection device, making the device complicated and expensive. , breakdowns are also likely to occur.

The purpose of this invention is to supply capacitor elements from a parts feeder to a capacitor assembly machine.
To provide a device with a small and simple structure that uses an extremely simple device to align lead wires of the same polarity so that they face a certain direction, and that also allows them to be inserted securely into a hole in a rubber bush held in the head on a turntable of an assembly machine. , to solve the problems mentioned above.

FIG. 1A is a perspective view schematically showing a supply device for a single-lead electrolytic capacitor element of the present invention.
As shown by the two-line arrows in this figure, the present invention first aligns and positions the capacitor elements on a horizontal feeder chute A so that the two lead wires are facing in a certain direction, and then at a angle approximately perpendicular to the direction in which the lead wires are aligned. It has individual chucks 1, 2, and 3 corresponding to each of the lead wire straightening device B, the lead wire expanding device C, and the polarization device D, which are lead wire straightening mechanisms lined up in the direction. Then, a transfer mechanism that moves horizontally picks up the capacitor elements on the horizontal feeder chute A and feeds them one after another to the above device, and finally, the polarity is aligned with the polarity alignment device D, and the capacitor elements are placed on the turntable T at head 8.
Two lead wires, long and short, are inserted into two holes in a rubber bush 120 held at 5. FIG. 1B shows a front view of the capacitor element W with the lead wires inserted into the rubber bushing 120 in this manner. The capacitor element W into which the lead wire has been inserted is sent to the next process on the turntable T, and is inserted into the case together with the rubber bush 120 and sealed. A heat-shrinkable tube with the lead wire polarity marked is then placed over the case and heated to seal it tightly.

Next, each part of the device of the present invention will be explained based on the illustrated embodiment.

Figures 2 to 4 show the capacitor element transfer device, with Figure 2 being a front view, Figure 3 being a right side view, and Figure 4 being a right side view.
The figure is a plan view. This device consists of chucks 1 and 1 mounted on a horizontal slide plate 6 at equal intervals.
It consists of a transfer mechanism that moves both chucks 2 and 3 vertically and horizontally, and a mechanism that opens and closes the three chucks.

Using protruding bearings 8, 8', 7, and 7' provided on the upper left and right sides (in the figure) of the main body 5, a hollow shaft 9 is attached to the left side so as to be slidable up and down.
A guide shaft 10 is fixed on the right side. A holding block 11 is fixed to the hollow shaft 9, and a slide plate 6 having chucks 1, 2, and 3 is attached to the holding block 11.
is held and is configured to move up and down together with the hollow shaft 9 while being guided by the guide shaft 10 on the right side. The slide plate 6 is horizontally slidably attached to the dovetail groove 12 of the holding block 11, and is pulled to the right by a coil spring 29 stretched between the left end of the slide plate 6 and the right end of the holding block 11. The drive lever 30 pushes the right end of the slide plate 6 to the left side against this tension, thereby being slid left and right. At the right end of the slide plate 6,
A cylinder 13 for opening and closing the chucks 1 and 2 is fixedly installed.

An inner shaft 14 is inserted into the hollow shaft 9 so as to be vertically slidable, and an opening/closing bar 21 is fixed to the inner shaft 14 through a notched window 15 formed in the middle of the hollow shaft 9. The opening/closing bars 20 and 19 of the chuck 3 are attached to the opening/closing bar 21.
The right end of the shaft 12 is guided by a guide shaft 10 and prevented from rotating.

The hollow shaft 9 and the inner shaft 14 are connected by a coil spring 16 stretched between the spring hook 17 on the opening/closing bar 21 side and the spring hook 18 of the hollow shaft 9, and fixed to the lower end of the inner shaft 14. The stopper 22 is pulled upward and is always in pressure contact with the lower end surface of the hollow shaft 9. A connecting rod 23 that drives the inner shaft 14 up and down is attached to the lower end of the inner shaft 14, and when the inner shaft 14 is lowered, the hollow shaft 9 is also lowered together with the holding block 11 and the slide plate. 6, each chuck 1, 2, and 3 descends and stops when the holding block 11 hits the stopper 24.
However, when the inner shaft 14 continues to descend, the opening/closing bar 21 is now lowered against the spring 16, and the right opening/closing bar 20 closes the claw of the chuck 3 via the opening/closing mechanism 4, and now the opening/closing bar 21 is lowered. Stop.

At the same time, the piston rod of the right-most cylinder 13 is retracted and separated from the pawl lever 26, so that the chucks 1 and 2 connected by the link plate 25 are also closed by their coil springs 27 and 28. At this time, the capacitor element is held between chucks 1, 2, and 3.

When the inner shaft 14 is raised, the opening/closing rod 20 leaves the opening/closing mechanism 4, which will be described in detail later, but the claws of the chuck 3 remain closed like the other chucks 1 and 2 even after the opening/closing rod 20 leaves the opening/closing mechanism 4, which will be described in detail later. When the rise stops, the right drive lever 3
0 rotates counterclockwise to push out the roller 31 attached to the right end of the slide plate 6 to the left against the coil spring 29, and when the chuck 3 at the left end comes directly under the left opening/closing rod 19, Stop. That is, each capacitor element is transferred to a position for the next process. When it stops, the hollow shaft 9 and the inner shaft 14 descend again as before, and this time the left opening/closing rod 1
At step 9, the claw of the chuck 3 is opened via the opening/closing mechanism 4.
At the same time, the rod of the cylinder 13 at the right end moves forward and the claws of chucks 1 and 2 also open, and at this time each capacitor element is attached to a device for the next process and released from the chuck.

After this, with chucks 1, 2, and 3 left open, the capacitor elements are returned to their original positions in the reverse order to the above, and the capacitor elements are again picked up from the previous process equipment and transferred to the next process, where they are installed.

FIG. 5 is a left side view of the opening/closing mechanism 4 and the chuck 3. The opening/closing mechanism 4 is provided with two pawls 48 and 41 that freely rotate around pins 47 and 40 on the upper side surface of a mounting plate 46 that is fixed to the left end surface of the slide plate 6 with a bolt 45. A protrusion of the left pawl 48 engages with the stepped notch 50 of the pawl 41, and this pawl 48 is pulled in the engagement direction by a coil spring 49.

The chuck 3 has a chuck claw mechanism 4 attached to a cylindrical block 43 fixed to the left end of the slide plate 6.
4 is supported by a bearing so as to be freely rotatable, and as shown in FIG. 2, an opening/closing pin 42 is inserted and supported in the center so as to be movable up and down. When the pin 42 is pushed down, the chuck claw opens, and when the pin 42 is released, it is closed by the coil spring 44'. As can be seen from the plan view of FIG. 4, the opening/closing rods 19 and 20 are also offset in the front and back direction. Now the second
When the chuck 3 is slid to the position directly below the opening/closing rod 19 on the left side of the figure, the opening/closing rod 19 descends and pushes down the pawl 41, which pushes down the opening/closing pin 42 and opens the chuck pawl. At this time, release the capacitor element. At the same time, the notch step 50 of the pawl 41 comes off from the protrusion of the other pawl 48, and the pawl 48 is rotated clockwise by the spring 49 and locks the right pawl 41, so the opening/closing rod 19 rises and the pawl 41 Even if I leave,
The claw 41 is held in a lowered state. Therefore,
The chuck claw remains open. Next, when closing the chuck pawl, when the chuck 3 is slid to the position directly below the opening/closing rod 20 on the right side in FIG. rotates counterclockwise. This releases the lock on the right pawl 41 and allows it to rise, so the opening/closing pin 42 is pushed up by the force of the closing spring 44', and at the same time the chuck 3 is closed and the capacitor element is clamped. When the opening/closing rod 20 rises, the protrusion of the left pawl 48 engages with the stepped notch of the right pawl 41 again as shown in the figure.

The cylindrical block 43 has a cylindrical shaft provided concentrically with the opening/closing pin 42 in the cylindrical block 43.
above the pin 5 as shown in Figures 2 and 3.
A block 53 on which a number 4 is implanted is fixedly installed so as to be able to rotate together with the chuck claw mechanism 44. The pin 54 is introduced into the V-shaped slit of the positioning plate 55 fixed to the holding block 11, and when the slide plate 6 slides to the left, the pin 54 escapes from the V-shaped slit. , chuck 3 can rotate freely.
Conversely, the slide plate slides to the right and pin 54
When the chuck 3 is introduced into the V-shaped slit as shown in the figure, no matter which direction the chuck 3 faces, its direction is regulated by the pin 54 and the V-shaped slit of the positioning plate 55.
The chuck pawls are symmetrical so that there is no problem even when the pin 54 is placed in the opposite position to that shown in the figure, that is, when it is reversed by 180 degrees.

Using the above-described apparatus, the capacitor element is picked up by a chuck, transferred to the next process, and mounted.

The transfer device transports the capacitor element in the order of horizontal feeder chute A → lead wire straining device B → lead wire spreading device C → polarity alignment device D, and tightens, spreads, and aligns the polarity of the lead wire in each process. Let's do it.

As shown in FIG. 1, the lead wire straining device B is designed to open and close clamping claws 101 and 102 using a cylinder 100 to clamp two lead wires of a capacitor. When the clamping claws 101 and 102 close, the wedge-shaped squeezing claw 103 enters between the two lead wires. The lead wire is squeezed by the squeezing claw 103 and straightened immediately. Then, it is sent to the next lead wire spreading device C.

The lead wire spreading device C is a wedge-shaped block 1.
10 has a V-shaped guide 111 as shown in Fig. 10, and the capacitor is lowered with chuck 2, and the two lead wires are stretched across the wedge-shaped block 110 to spread the lead wires. , to make the next polarity discrimination task easier.

FIG. 6 shows the polarization device D, in which A is a plan view, B is a front view, and C is a sectional view taken along the line H--H in FIG. This device aligns the polarity when the capacitor lead wires are inserted into the rubber bush 120 held by the head 85 on the turntable T as shown in FIG. The shaft 7 is attached to the base 70.
1.90 is inserted vertically and fixed, and the shaft 71
A frame 72 and a gear holding plate 76 are mounted so as to be movable up and down. The movable frame 72 can move up and down without rotating with respect to the shaft 90 due to the guide tube 91. Below the movable frame 72,
A gear 73 integrated with a gear holding plate 76 and gears 74 and 75 fixed to the lower ends of two rotating shafts 80 and 79 in the movable frame 72 are meshed with each other.

Therefore, when the gear holding plate 76 is reciprocally rotated by force in the direction of the arrow in FIG. A bearing 78 is attached to the base 70 at a lower position of the gear holding plate 76, while a bearing 78 is attached to the lower side of the gear holding plate 76.
6 has a protrusion 77 on the lower surface that contacts the bearing 78.
By providing this, when the gear holding plate 76 rotates and the convex strip 77 rides on the bearing 78, the movable frame 72 rises to some extent, and the guide arm 8
When the 2.83 is opened and closed, it is lifted up from the head 85 on the turntable, making it easier to operate.

When the guide arms 82 and 83 are put together, they form a funnel-shaped guide hole with a partition 86 in the middle, and two holes at the bottom into which the lead wires of the capacitor element are inserted. Then, the above two holes match the two holes of the rubber bushing held by the head 85 on the turntable, and the lead wire of the capacitor W' is inserted into the two holes of the guide arm and the rubber bushing at chuck 3. Then, the guide arms 82 and 83 open to release the capacitor element.

At the station in front of the polarization device, there is a device for checking whether the lead wire insertion holes of the rubber bushing 120 are aligned at predetermined positions. 7th
The figure is a rear view of this rubber button check device.

A cam 152 connected by a ring to a lower lever 150 pivotally supported on the frame is attached to an upper lever 151.
It is in contact with the roller 157 of. Upper lever 151
There is an operating bolt 155 on the left end of the holder, which operates the micro switch 153. The right turntable T has a head 85 as shown in Figure 8.
A rubber bushing housing hole 166 is formed in the center of the top end of the head, and a push-up pin 162 is inserted and held under this hole. A bolt 163 for pushing up a push-up pin 162 is provided at the right end of the lower lever 150.
On the other hand, the upper lever 151 is pulled clockwise by a coil spring 160, and on the right end of this lever is a bushing plate 1 that extends above the head 85.
It is equipped with 61. Above this presser plate 161, check pins 164, 164' and a holder 167 are held by a frame so as to be able to move up and down, and are normally pulled down by a coil spring 165, but when pushed up as described later, The operating bolt 156 at the top is the micro switch 154
come into contact with

Now, when the head 85 holding the rubber bush on the turntable comes to the position of the rubber bush check device, the lower lever 150 is rotated counterclockwise, and the push-up bolt 163 moves the push-up pin 162 up to the thickness of the rubber bush. The two check pins 164 and 164' are inserted into the lead wire insertion holes of the rubber bushing 120.
At the same time, the rubber button pressing plate 161 is pressed against the spring 160.
The switch is pushed counterclockwise by that amount and rotates, and the operating bolt 155 at the left end moves away from the switch 153 to change the switch. Note that, prior to this, the cam 152 is rotated counterclockwise by the lower lever 150 and is separated from the roller 157, so that the upper lever 151 can freely rotate counterclockwise.

If rubber button 2 is not available, push up pin 1
Even if 62 is pushed up, the presser plate 161 is not pushed up, so the upper lever 151 does not rotate.
Therefore, as shown in the figure, the switch 153 and the opening/closing bolt 155 remain in contact with each other. In addition, even if there is a rubber bush 120, if the hole position is deviated from the normal position, check the check pin 16.
4.164' is not inserted, rubber button 1
20 is pushed up, the check pin holder 167 and the operating bolt 156 rise against the spring 165, and the operating bolt 156 closes the switch 154.
Switch. At this time, since the upper lever 151 is also rotated, the left switch 153 is also switched.

Even if the lower lever 150 rotates and pushes up the push-up pin 162, the upper lever 151 does not rotate and the left operating bolt 155 remains in contact with the switch 153 as shown in the figure, that is, when there is no rubber button. Then, the upper lever 151 rotates, the left operating bolt 155 is released from the switch 153, and the upper right operating bolt 156 is removed from the switch 15.
4, that is, when the hole position of the rubber button is misaligned, the cylinder 13 shown in FIG. 2 is operated by signals from the switches 153 and 154.
Run the feed with chucks 1 and 2 open.

Next, the operation of the entire device of the present invention will be explained. Push a large number of single-lead type electrolytic capacitor elements from the parts feeder into the groove of horizontal feeder chute A, align the guides in a line so that the lead wires are facing in a certain direction, and line them up in a direction almost perpendicular to the alignment direction of the capacitors. Connect the chuck 1 and
2 and 3, and finally, using the polarization device D as a guide, the lead wire is inserted into the rubber bush held by the head on the turntable T.

This series of operations begins with the slide plate 6 in Figure 2.
While the inner shaft 14 is sliding to the right as shown in the figure, the inner shaft 14 is lowered, and the slide plate 6 holding the chucks 1, 2, and 3 lowers together with the holding block 11 and stops when it hits the stopper 24. Next, the piston rod of the cylinder 13 retracts and the pawl lever 26
At this time, chuck 1 chucks one capacitor lined up on horizontal feeder chute A. Also, chuck 2 checks the capacitor on the lead wire straining device B, and chuck 3 checks the capacitor on the lead wire spreading device C. When the inner shaft 14 rises and stops while keeping the capacitor chucked, the drive lever 30 is activated to slide the slide plate 6 to the left and chucks 1, 2, etc.
3 to just above the lead wire squeezing device B, case expanding device C, and polarity aligning device D, respectively.
Then, the inner shaft 14 descends again. At this time, the capacitor lead wire of chuck 1 is held in the lead wire squeezing device B, the capacitor lead wire of chuck 2 is stretched over the lead wire spreading device C to spread the lead wire, and the capacitor lead wire of chuck 3 is polarized. Guide it with alignment device D and insert it into the rubber bushing. Finally, the rod of cylinder 13 advances,
After opening the chucks 1 and 2 to release each capacitor, the inner shaft 14 rises, the drive lever 30 rotates clockwise, and the claws 1, 2, and 3 of the slide plate return to their original positions. By repeating the above operations in this way, the capacitors on the horizontal feeder chute A are fed into the lead wire squeezing device B and then into the lead wire spreading device C.

The chuck 3 is opened and closed by the opening/closing pins 19 and 20 of the opening/closing bar 21 via the opening/closing mechanism 4. That is, when the chuck 3 picks up the capacitor element from the lead wire spreader C and moves up, and the slide plate 6 is pushed to the left by the drive lever 30, the pin 54 of the block 53 escapes from the V-shaped slit of the positioning plate 55. , the chuck 3 is in a state where it can freely rotate. As the slide plate moves further, the longer lead wire of the capacitor held in the chuck 3 hits the partition 86 of the guide arm, which causes the chuck 3 to rotate and the shorter lead wire to pass through the partition 86 of the polarization device. It stops moving when it passes over 86. Here, check 3 is
It starts to descend together with the other chucks 1 and 2, and the lead wire is inserted into the hole of the rubber bush 120, which is held by the head on the turntable and whose hole position has been checked, through the guide of the polarization device. Then, when it hits the stopper 24, the checks 1, 2,
3 stops descending, but only the inner shaft 14 continues to descend, so the opening/closing pin 19 of the opening/closing bar 21 touches the claw 4.
Press 1 to open the chuck and release the capacitor element. At this point, the descent is stopped, but when the lead wire is inserted into the hole in the rubber bushing, the guide arms 82 and 83 of the polarization device open to allow the turntable to move.

Meanwhile, the inner shaft 14 rises again, and then the slide plate 6 slides to the right and returns. At this time, the pin 54 of the block 53 is introduced into the V-shaped slit of the positioning plate 55, and the direction of the claw of the chuck 3 is regulated.

As described above, according to the present invention, a plurality of capacitor element holding chucks are mounted on a common slide plate at equal intervals, and the chuck at the end can be rotated in conjunction with the polarity alignment device. Despite its extremely simple structure, it is possible to stably and reliably supply capacitor elements to a capacitor assembly machine with correct direction. Also, when the longer lead wire comes into contact with the partition plate of the polarization device, the chuck rotates and the shorter lead wire crosses the partition plate, so the short lead wire always crosses the partition plate. The line is always guided to the next funnel-shaped hole in the partition plate. Therefore, the polarity of the lead wires can be reliably aligned with a simple configuration. Also, when the longer lead wire comes into contact with the partition plate of the polarization device, the chuck rotates and the shorter lead wire crosses the partition plate, so the shorter lead wire always passes through the funnel-shaped hole next to the partition plate. be guided by. Therefore, the polarity of the lead wires can be reliably aligned with a simple configuration.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention. Figure 1A is a perspective view schematically showing the single-lead type electrolytic capacitor element supply device of the present invention, and Figure 1B is a front view of the capacitor element with the lead wire inserted into the rubber bushing. FIGS. 1A and 1B are rear perspective views of the lead wire spreading device. Figures 2 to 4 show the capacitor element transfer device;
3 is a right side view, FIG. 4 is a plan view, and FIG. 5 is a left side view of the opening/closing mechanism and the chuck driven by it. Fig. 6 shows the polarity alignment device, in which Fig. A is a plan view, Fig. B is a front view, and Fig. C is a sectional view taken along the line H - H of Fig. 6. FIG. 7 is a rear view of the rubber bush checking device, and FIG. 8 is a longitudinal sectional view of the rubber bush holding head on the turntable. In the drawing, A is a horizontal feeder chute;
B is a lead wire squeezing device, C is a lead wire spreading device, D is a polarity alignment device, T is a turntable,
W・W′ are single lead type capacitor elements, 1, 2,
3 is a chuck, 4 is an opening/closing mechanism, 6 is a slide plate,
9 is a hollow shaft, 10 is a guide shaft, 11 is a holding block, 14 is an inner shaft, 21 is an opening/closing bar, 19, 20 are opening/closing bars, 73, 74, 75 are gears, 76 is a gear holding plate, 82, 83 are Guide arm, 85 is a head, 86 is a partition, 101 and 102 are clamping claws, 1
03 ladder claw, 110 wedge-shaped block, 1
20 is the rubber button, 150 is the lower lever, 15
1 is the upper lever, 153 and 154 are micro switches, 162 is the push-up pin, 164 and 164'
166 is a check pin, and 166 is a rubber bushing storage hole.

Claims (1)

[Claim for Utility Model Registration] In a device for feeding capacitor elements one by one from a parts feeder to a capacitor assembly machine, a plurality of capacitor element holding chucks are attached to a common slide plate at equal intervals, and the slide A capacitor lead straightening mechanism and a polarity alignment device are disposed along the plate corresponding to the chuck, and the polarization device includes two arms that open and close, and when both arms approach each other and close, the polarity alignment device opens and closes. It has a funnel-shaped guide hole divided into two by a partition formed perpendicular to the direction, and the bottom of the funnel-shaped hole has lead wire insertion holes on both sides of the partition. A capacitor element in a capacitor assembly machine, characterized in that the chuck attached to the terminal end is configured to be able to rotate around the capacitor element when the longer lead wire of the capacitor element comes into contact with the partition part. feeding device.