JPS6213810B2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Technical Field of the Invention The present invention relates to a method for collecting and supplying a connecting piece for connecting a plurality of strips cut to a regular length into a long length, and in particular to a method for collecting and supplying a connecting piece that connects a plurality of strips cut to a regular length. The present invention relates to a method for collecting a connecting piece from the middle part of a used regular length strip and supplying it for connection to a new regular length strip.

(b) Background of the technology Figure 1 is a front view of a solid electrolytic capacitor with its resin exterior cut away. In the capacitor 1, an anode wire 3 led out from the anode body of a capacitor element 2 is connected to an anode lead 4, and the element 2 is connected to the anode lead 4. One end of a cathode lead 5 is connected with solder 6 to the cathode attached to the surface of the cathode, and then a resin sheath 7 is attached to the parts of the leads 4 and 5 except for a part.

As a means of mass production, such a capacitor 1 is produced by pressing a hoop material to form a strip in which the lead-out ends of the leads 4 and 5 are extended and connected to a connecting member, and each anode lead 4 is connected to the lead-out ends of the anode body. There is a method in which after welding the anode wire 3, each required layer of the element 2 is formed and solder 6 and sheath 7 for connecting the element 2 and the lead 5 are applied. At that time, a strip member in which a large number of leads 4 and 5 are connected to the connecting member is formed over the entire length of the long hoop material, but the element 2
The formation of the required layers and the application of the solder 6 and the sheath 7 are carried out in batches, that is, in groups of a plurality (for example, 20 pieces) of strips cut into regular lengths (for example, 160 mm).

(c) Prior Art and Problems Therefore, after the batch processing, steps such as printing symbols etc. on the surface of the outer package 7 and checking the characteristics by cutting the connecting portions of the cathode leads 5 are also carried out on a group-by-group basis. However, the second step is to automate them.
As shown in the figure, it is desirable to lengthen the strips by cutting them into regular lengths and having feeding holes 13 formed therein, and connecting them with connection pieces 12.

However, since the conventional connection piece 12 is collected from a new strip 11 to which the element 2 is not connected or manually collected from a used strip 11, the former increases the consumption of indirect materials. However, in the latter case, it was difficult to integrate the extraction of the connection piece 12 and the connection of the strips 11.

(d) Purpose of the Invention The purpose of the present invention is to eliminate the above-mentioned problems and provide a method for automatically collecting and supplying connecting pieces from used connected strips.

(e) Structure of the Invention The above object is a method for collecting and supplying a connecting piece from a strip for collecting a connecting piece having an unusable intermediate part at regular intervals, which includes a protruding first cutting edge and a first cutting edge. The stroke of the punch, which has a second cutting edge that protrudes in the same direction with a smaller protrusion amount than the blade and faces the first cutting edge and is spaced apart from the unnecessary intermediate portion by a larger distance than the unnecessary intermediate portion, is controlled by inserting and removing the stopper, etc. At least two strokes, a first stroke in which the cutting blade cuts the connecting piece collection strip material, and a second stroke in which the first and second cutting blades cut the outside of the unnecessary intermediate part.
A fixed-length strip connection characterized in that the connection piece is sent out in a direction in which the connection piece collection strip runs in a stepwise manner, and the unnecessary intermediate portion is cut off in a direction perpendicular to the running direction. This is achieved by the method of collecting and supplying connection pieces for use.

(f) Embodiment of the Invention An embodiment in which the method of the present invention is applied to a device for connecting strips 11 shown in FIG. 2 with connecting pieces 12 will be described below with reference to the drawings.

Fig. 3 is a perspective view showing the main structure of the device, Fig. 4 is a plan view schematically showing the connection piece collecting section of the device, and Fig. 5 is for explaining the operation of the collecting section collecting and supplying the connection piece. FIG. 6 is a plan view for explaining the operation in which the collecting section cuts off an unnecessary intermediate portion of the connecting piece collecting strip.

In FIG. 3, the device 21 is a connecting piece collecting section 22.
It consists of a connecting piece welded part, a connecting strip traveling mechanism, etc., and a long used strip (stripe for collecting connecting pieces) 2
3 is guided by a sprocket 24 and rollers 25 and sent to a collecting section 22.

The sampling section 22 includes a feeding claw 26 for appropriately moving the strip 23 along a guide groove (not shown), a punch 27 having a pair of cutting blades 28 and 29, and a punch 27.
7 is equipped with a die 30 for cutting the strip material 23. The feed claw 26 is a sliding rod 3 that is T-shaped in plan view.
1 through a shaft 32 so as to be able to swing in one direction, and the sliding rod 31 can be slid in the running direction of the strip 23 by driving an air cylinder 33, and its sliding stroke can be moved up and down. It is controlled by a fixed stopper 34 or a fixed stopper 35 which also serves as a guide for the rod 31. The punch 27, which is slidable along a pair of protrusions protruding from the upper surface of the die 30, has a swinging rod 37 on its rear end surface due to the compression force of the compression coil spring 36.
An air cylinder 40 is connected to the lower part of the rod 37 through a U-shaped metal fitting 39, with the upper part of the rod 37 always in contact with the rod 37, which is supported by a shaft 54 and is swingable. The stroke of the punch 27, which slides due to the drive of the air cylinder 40, is controlled by the vicinity of the lower end of the rod 38 coming into contact with a stopper 42 or a fixed stopper 43, which can be moved left and right by the air cylinder 41.

The welding part of the connection piece has a pair of fixed electrodes 4 for welding.
A pair of movable electrodes 45 and a plurality of pilot pins 46 are installed for positioning the connecting portions at both ends of the strip 11, respectively, and the fixed electrode 4 faces the fixed electrode 4.
4. The slider 47 is slidable toward the 4th position.

Then, the strips 11 connected by the connecting pieces 12
is guided by a sprocket 48, a roller 49, and a guide groove (not shown), and is run by a predetermined distance by a claw metal fitting 50 of a connecting strip running mechanism. However, the claw metal fitting 50 is connected to an air cylinder 52 via a slidable sliding rod 51, and is operated by driving the air cylinder 52.

Further, above the fixed electrode 44, a magazine 53 of strips 11 is installed, in which a plurality of capacitors 1 that have undergone the process up to exterior coating are connected, and one strip 11 is inserted from the front of the magazine 53. The strip material 2 is supplied in front of the fixed electrode 44 and connected sequentially.
The new tip of the strip 23 from which the connecting portion (unnecessary intermediate portion) 23' and the connecting piece 12 are separated from 3 is moved into the right groove 56 of the die 27 by the vertically movable guide 55.
(Fig. 4).

In the device 21 configured in this manner, the punch 27 is retracted backward (upward in the figure) from the strip 23, as shown in FIG. The strip 23 sent by the forward movement (to the right in the figure) of the die 26 protrudes to the right of the die 30 by a predetermined amount. However, the strip 23 is a leftover material left uncut from the capacitor 1 after all processes have been completed by connecting the strip 11 with the connecting piece 12.
The forward movement of 6 stops when the left end of the sliding rod 31 comes into contact with the left end surface of the stopper 35, and the length l of the strip from the right inner wall surface of the die 30 to the tip of the strip is equal to the length of the connecting piece 12. It is now set to

In FIG. 5, when the air cylinder 40 is operated after the guide 55 is removed from the strip traveling path, the drive shaft 40' of the air cylinder 40 rises, and the shaft 54
The left end of the swinging rod 38 supported by the stopper 42
The right end of the rod 38 swings until it touches the punch 2.
Press down on 7. As a result, the cutting blade 29, which protrudes more than the cutting blade 28, cuts the intermediate portion of the strip 23, and the connecting piece 12 is separated from the strip 23. However, prior to the separation, the left end of the connected strip 11 is welded to the tip of the strip 23, and the sliding rod 3
1 has been moved (retracted) to the left so that its right end comes into contact with the stopper 34.

In FIG. 6, when the stopper 42 is moved out of the swinging range of the swinging rod 38 and the air cylinder 40 is operated, the drive shaft 40' rises and the swinging rod 38 moves until the left end comes into contact with the stopper 43. Swinging, rod 38
The punch 27 pressed down to the right end of the cutting edge 28 and 2
9 cuts the outside of the strip connecting portion 23'.

As a result, the connecting piece 12 is separated from the strip 23 and can be sent out to the side of the die 30, and the connecting portion 23' falls below the punch 27. However, prior to the cutting, the left end of the strip 11 to be connected is welded to the tip of the strip 3, and the strip 23 is fed longer by the length of the connecting portion 23' than that shown in FIG. The necessary sliding rod 31 is moved to the left (backward) by moving the stopper 34 out of its sliding area until it abuts against the stopper 35.

Therefore, the device 21 separates the connecting piece 12 from the strip 23 with each stroke of the punch 27 and releases the connecting piece 12 from the die 30.
At the same time, the connecting portion 23' of the strip 23 to which the connecting piece 12 is welded is discharged below the punch 27.

(g) Effects of the Invention As explained above, according to the present invention, connecting pieces can be collected while eliminating unnecessary parts of the strip for collecting connecting pieces.
This has the effect of making it possible to automate the supply work and making it easier to utilize the strip material, which was conventionally treated as waste material.

[Brief explanation of the drawing]

Fig. 1 is a front view of a solid electrolytic capacitor with the resin exterior broken, Fig. 2 is a front view of a solid electrolytic capacitor in which strips of a fixed length are connected with connecting pieces as a means for mass producing the capacitor, and Fig. 3 is a front view of a solid electrolytic capacitor according to the present invention. A perspective view showing the main structure of a standard length strip connecting device including a connection piece collection section according to an embodiment, FIG. 4 is a plan view schematically showing the collection section, and FIG. FIG. 6 is a diagram for explaining the operation of collecting and supplying the connecting piece, and FIG. 6 is a diagram for explaining the operation of the collecting section cutting off the unnecessary middle part of the strip for collecting the connecting piece. In addition, in the figure, 11 is a strip material made into a standard length,
12 is a connecting piece, 22 is a connecting piece collecting part, 23 is a strip for collecting the connecting piece, 23' is a connecting part of the strip 23, 27
is a punch, 28 and 29 are cutting blades, 30 is a die, 42
43 indicates a movable stopper and a fixed stopper.

Claims (1)

[Claims] 1. This is a method of collecting and supplying connecting pieces from a connecting piece collection strip that has an unnecessary intermediate part that cannot be used at regular intervals because it connects multiple strips cut to a regular length into a long length, and the connecting pieces are protruded. A punch having a first cutting edge and a second cutting edge that protrudes in the same direction with a smaller protrusion amount than the first cutting edge and faces the first cutting edge with a distance greater than the unnecessary intermediate portion. The stroke is divided into a first stroke in which the first cutting blade cuts the connecting piece collection strip material by insertion and removal of the stopper, and a second stroke in which the first and second cutting blades cut the outside of the unnecessary intermediate portion. The method is characterized in that the connecting piece is sent out in the direction in which the connecting piece collection strip runs in at least two stages, and the unnecessary intermediate portion is cut off in a direction perpendicular to the traveling direction. A method for collecting and supplying connecting pieces for connecting regular length strips.