JPS6224932B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a washer feeding method and apparatus for a block type electrolytic capacitor, and in particular, it improves production efficiency by automatically conveying a washer attached to a lead plate of a block type electrolytic capacitor to a jig. The present invention relates to a washer feeding device for a block type electrolytic capacitor which is designed to improve the performance of the block type electrolytic capacitor.

Conventionally, the washers attached to the lead plates of block-type electrolytic capacitors were placed on a jig by hand, which required a considerable amount of assembly man-hours. In addition, there were cases in which workers were careless and forgot to place the washers on the jig, resulting in defective products.

The present invention has been made in order to eliminate the drawbacks of the prior art as described above, and its purpose is to provide a block type electrolytic capacitor in which a washer attached to a lead plate of an electrolytic capacitor element is mounted on a jig. It is an object of the present invention to provide a washer feeding method and device for block type electrolytic capacitors that can automate the conveying work, and to greatly improve the efficiency of assembly work of block type electrolytic capacitors. Another objective is to have an extremely rational configuration of the automatic assembly mechanism that enables highly accurate automatic assembly, thereby preventing the occurrence of defective products, reducing assembly man-hours, and producing high-quality block molds with high assembly accuracy. An object of the present invention is to provide a washer feeding method and device for electrolytic capacitors.

In short, the method of the present invention involves conveying washers of a block electrolytic capacitor in close contact with each other continuously by a parts feeder, aligning and inserting the washers into two rows of washers feeding grooves formed in a guide section, and inserting the washers into the washer feed grooves formed in the guide section. It is stopped in a fixed position by the front row stopper device and moved in the longitudinal direction and vertical direction with respect to the machine frame by the drive device. A feed rod, which is constantly urged downward by a compression spring, is inserted into the washer that is stopped at the fixed position by the downward movement of the base plate, the washer is held by the feed rod, and the base plate is moved forward. As a result of the movement, the feed rod with the washer inserted and held therein is moved to a position facing two ejector pins that are vertically slidably fitted into the jig, and the base plate is further lowered to allow the feed rod to be inserted and held by the sleeve. The washer is pushed down along the feed rod, and the washer is transferred to an ejecting pin of the jig and fixed on the jig. a parts feeder that continuously conveys the washer in close contact with each other; a guide section having a washer feed groove into which the washers are aligned and inserted in two rows; and a stopper for stopping the washers in the front row at a fixed position. A device, a link device that slides two sliding shafts supported on a machine frame in the front and back direction, and a link device that slides the support shaft supported on a support fixed to the tip of the sliding shaft in the vertical direction. a drive device consisting of an actuating device; a base plate having one end fixed to the support shaft; two sleeves fixed to the other end of the base plate; The jig has two built-in feed rods that are constantly biased downward by compression springs and two ejector pins that are arranged so that they can face the feed rods when they move to the frontmost part. It is characterized by having the following ingredients.

The present invention will be explained below based on embodiments shown in the drawings. The device according to the present invention includes a parts feeder 1, a guide section 2, a stopper device 3, a drive device 4, a base plate 5,
The main components are a sleeve 6, a feed rod 7, and a jig 8.

The parts feeder 1 is formed in a spiral shape,
The washer 11 is continuously and closely conveyed by a vibrator (not shown).
The guide part 2 is arranged continuously with the parts feeder 1, and has two washer feeding grooves 2a having a depth slightly larger than the thickness of the washers 11 arranged in two rows and inserted therein. In addition, the guide portion 2 has a cover plate 12 that covers the washer feed groove 2a.
is fixed thereto, and a plurality of long grooves 12a formed in the cover plate are arranged directly above the washer feed groove 2a. Further, a long groove 2b having a width substantially the same as the diameter of the hole 11a of the washer 11 is formed to penetrate the bottom surface of the washer feed groove 2a, which faces the long groove 12a.

The stopper device 3 is a pivot 1 fixed to the machine frame 13.
It consists of a pair of swinging members 15, 16 pivotally connected to the switch 4, and a micro switch 17 that engages with the swinging members. The swinging members 15 and 16 are urged by a torsion spring 18 wound around the pivot shaft 14 to rotate in the directions of arrows A and B, respectively, as shown in FIG. The swinging members 15 and 16 are regulated by a stopper 19 fixed to the swing member 13, and the tip portions 15a and 16a of the swinging members 15 and 16 come into contact with the washer 11 disposed at the front row to stop the washer at a fixed position. It's summery. The actuator 17a of the microswitch 17 is engaged with the swinging members 15 and 16.

The drive device 4 is connected to a seat plate 22 fixed to two sliding shafts 21 supported on the machine frame 13, and has a link device 23 that slides the sliding shafts 21 in the front and back direction.
and a wire device 26, which is an example of an actuating device for vertically sliding a support shaft 25 supported by a U-shaped support 24 fixed to the tip of the sliding shaft 21. The return spring 27 is biased to return the sliding shaft 21 rearward.

One end of the base plate 5 is fixed to the support shaft 25,
Two sleeves 6 are fixed to the other end of the base plate 5. The feed rod 7 is fitted into the sleeve 6 and is constantly biased downward by a compression spring 28 built into the sleeve.
When the feed rod is located at the rearmost portion, the feed rod faces directly above the washer 11 disposed at the front row portion.

The jig 8 is attached at regular intervals to a conveyor (not shown) that is driven intermittently, and
and lead plate guide 31 are the main components.
The die 30 is formed with two counterbore portions 30a in which the washer 11 is fixed, and two ejector pins 32 that can be slid in the vertical direction are inserted into the center of the counterbore portions. The ejector pin is arranged at a position such that it can face the feed rod 7 when it advances to the forefront, and the diameter of the ejector pin is formed to be the same as the diameter of the feed rod 7. The lead plate guide 31 is designed to be able to slide vertically, and two grooves 31a are formed on the upper surface of the lead plate guide in which a lead plate (not shown) of a block type electrolytic capacitor can be placed. There is.

As shown in FIG. 4, the guide section 2 is provided with a photoelectric washer detection device 33 inclined at an angle of about 30 degrees with respect to the guide section 2 in this embodiment. The main components of the photoelectric washer detection device 33 are a light source 34 and a light receiving element 35, and a light beam 36 emitted from the light source 34 disposed above the guide portion 2 is transmitted to the long groove 12a of the cover plate 12 and the washer feed groove 2a. It is designed so that it can pass through the long groove 2b and reach the light receiving element 35 arranged below the guide part 2.

The present invention is configured as described above, and its operation will be explained below. The washer 11 is conveyed through the parts feeder 1 by a vibrator, but since the washer 11 is punched out with a press, it may have burrs and may get stuck in the washer feed groove 2a of the guide section 2 on the way. It may stop for a while. Like this, Washia 1
If the washers 11 are not conveyed in close contact with each other, that is, if there are gaps between the washers 11, it is necessary to temporarily stop the automatic assembly machine and take out the defective washers 11. The presence or absence of a gap between the washers 2 is detected by a photoelectric washer detection device 33. To explain the operation of this photoelectric washer detection device 33, the light beam 36 emitted from the light source 34 of the photoelectric washer detection device 33 is transmitted to the cover plate 1.
When the washer 11 is continuously conveyed in close contact with the washer 11, the light beam 36 is obstructed in its progress by the washer 11, and as a result, the light receiving element 3
Since the light beam 36 does not reach 5, no pulse signal is generated and the automatic assembly machine continues to operate normally. If there is a gap between the washers 11, the light beam 36 passes through the long groove 2b of the washer feed groove 2a and reaches the light receiving element 35, and as a result, a pulse signal is generated and the automatic assembly machine is stopped. In this way, when the presence or absence of the washer 11 is detected by the photoelectric washer detection device 33 and the normal feeding of the washer 11 is confirmed, the washer 1
1 advances until it comes into contact with the tips of the swinging members 15 and 16 of the stopper device 3. The support shaft 25 is then moved by the wire device 26 actuated by the cam device.
As the machine moves downward, the base plate 5 and the feed rod 7 also fall, and the feed rod moves into the hole 11 of the washer 11 in the front row.
It is inserted and held in a. The sliding shaft 21 is then moved forward by a linkage 23 actuated by a cam arrangement.

Here, the stopper device 3 detects whether the washer 11 is inserted into the feed rod 7 or not. That is, when the washer 11 is inserted and held in the feed rod 7, when the feed rod 7 moves forward, the swinging member 1
5 and 16 are torsion springs 18 by washers 11.
The actuator 1 of the micro switch 17 swings about the pivot shaft 14 in the directions of arrows C and D as shown in FIG.
7a moves a certain distance. Then, the micro switch 17 is turned on and the automatic assembly machine continues normal operation. If the washer 11 is not inserted and held in the feed rod 7, the swing members 15 and 16 will be pressed only by the feed rod 7, and the swing angle of the swing members 15 and 16 will be 7 is smaller than when the washer 11 is inserted into the holder 7, the movement of the actuator 17a is also small, the micro switch 17 remains OFF, and the automatic assembly machine stops.

When it is confirmed by the stopper device 3 that the washer 11 is inserted and held in the feed rod 7 in this way, the sliding shaft 21 is moved forward by the link device 23 operated by the cam device, and the feed rod 7 comes to face the ejecting pin 32 of the jig 8.
Then, the sliding shaft 21 is lowered by the wire device 26, and the feed rod 7 is moved downward by the ejecting pin 32.
The washer 11 is pushed downward along the feed rod 7 by the sleeve 6, and the washer is transferred to the ejector pin 32.

When the washer 11 is inserted and held by the ejector pin 32, the base plate 5 and the feed rod 7 rise again and further retreat rearward due to the cooperative action of the link device 23 and the return spring 27. Thereafter, the jig 8 with the washer 11 placed on the counterbore 30a is intermittently advanced one pitch at a time by a conveyor, and a lead board supply device, a lead board straightening device, a lead board detection device (not shown), etc. The attachment of the cap to the lead plate of the block type electrolytic capacitor element is completed through the lead plate cutting, the lead plate and washer connection device, the cap mounting device, and the cap crimping device. Thereafter, the jig 8 is moved in an empty state by the conveyor and returns to the position of the washer feeder, and the above-described operation is repeated.

Since the present invention is constructed and operates as described above, in a block type electrolytic capacitor, the work of transporting the washers to be attached to the lead plate to the jig can be automated, so that the assembly of the block type electrolytic capacitor can be automated. The effect of significantly improving work efficiency can be obtained. Furthermore, since the automatic assembly mechanism is extremely rationally constructed, highly accurate automatic assembly is possible, the occurrence of defective products can be prevented, and the number of assembly steps can be reduced. Furthermore, it is possible to provide a high quality block type electrolytic capacitor with high assembly accuracy.

[Brief explanation of the drawing]

Fig. 1 is a side view showing the main parts of the present invention, Fig. 2 is a plan view of Fig. 1, Fig. 3 is a plan view showing the relationship between the parts feeder and the washer, and Fig. 4 is the main part of the device of the present invention. FIG. 5 is a perspective view showing V in FIG.
- V-arrow longitudinal cross-sectional view; FIG. 6 is a vertical cross-sectional view of the sleeve and die. 1 is a parts feeder, 2 is a guide section, 2a is a washer feed groove, 3 is a stopper device, 4 is a drive device,
5 is a base plate, 6 is a sleeve, 7 is a feed rod, 8 is a jig, 11 is a washer, 13 is a machine frame, 21 is a sliding shaft, 23 is a link device, 24 is a support body, 25 is a support shaft, 26 is a wire device, 28 is a compression spring, 32
is an ejector pin.

Claims (1)

[Scope of Claims] 1. Washers of block type electrolytic capacitors are continuously conveyed in close contact with each other by a parts feeder,
The washers are aligned in two rows and fitted into the washer feed grooves formed in the guide section, the front row portion of the washers is stopped at a fixed position by a stopper device, and the washer is stopped against the machine frame by a drive device. The feed rod, which is fitted into a sleeve fixed to a base plate that moves in the front-rear and vertical directions and is constantly biased downward by a compression spring built into the sleeve, is moved to the fixed position by the downward movement of the base plate. The washer is inserted into the washer stopped at , the washer is held on the feed rod, and the feed rod with the washer inserted and held is inserted into the jig so as to be slidable in the vertical direction by the forward movement of the base plate. Then, the base plate is lowered and the washer is pushed down along the feed rod by the sleeve, and the washer is transferred to the ejector pins of the jig. A washer feeding method for a block type electrolytic capacitor, characterized in that the block type electrolytic capacitor is fixedly placed on a jig. 2. A parts feeder for conveying washers in close contact with each other; a guide section having washers feeding grooves into which the washers are aligned and inserted in two rows; and a guide section for stopping the washers in the front row at a fixed position. a stopper device, a link device that slides the two sliding shafts supported on the machine frame in the front-back direction, and a link device that slides the support shaft supported on a support fixed to the tip of the sliding shaft in the vertical direction. a drive device consisting of an actuating device for moving; a base plate having one end fixed to the support shaft; two sleeves fixed to the other end of the base plate; Built-in two feed rods that are constantly biased downward by compression springs and two ejector pins that are arranged so that they can face the feed rods when they move to the frontmost part. A washer feeding device for a block type electrolytic capacitor, characterized in that it is equipped with a jig.