JPS6116685Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is designed to:
It relates to a device for temporarily tightening the opening of an aluminum case in which a capacitor element is inserted, and more specifically, a device for temporarily tightening is provided in a pre-process of forming an aluminum case of a single-lead electronic component having an aluminum case, such as an electrolytic capacitor. This invention relates to a temporary crimping device that prevents polarity deviation of lead wires and lifting of seal rubber that occurs during main molding.

Conventionally, in the capacitor assembly process, when tightening the body of the capacitor's aluminum case,
The external force from the crimping roller shifts the relative relationship between the aluminum case and the encapsulated rubber, and as a result, the direction of the lead wire of the element inserted into the encapsulated rubber also shifts. When coated on the outside of the aluminum case,
There was a problem in that the polarity indication printed on the tube and the position of the lead wires were misaligned, which caused inconvenience during use.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a temporary crimping device for a capacitor case that solves the above-mentioned problems and makes it possible to manufacture high-quality capacitors.

The feature of the temporary crimping device according to the present invention is that a pair of crimping levers are pivotally mounted on a support body, and the crimping levers can be opened and closed by an operating rod, and each of the crimping levers has crimping pins facing each other. A guide member having a pressing surface that can engage with the outer peripheral surface of the capacitor case and a guide groove for the crimping pin is pivotally attached to each of the crimping levers, and the guide member is attached to each of the pair of crimping levers. This is due to the fact that it is pressed against the capacitor case placed between the crimping levers.

Hereinafter, one embodiment of the temporary crimping device according to the present invention will be described with reference to the drawings.

1 to 3, the temporary crimping device according to this embodiment has a cylindrical bearing 2 inserted into a through hole 10 of a main body 1 and fixed with nuts 11 and 12. A groove 20 extending in the diametrical direction is formed at the lower end of the bearing 2. The upper ends of a pair of caulking levers 3 are inserted into the grooves 20, and are pivotally mounted by a support shaft 21 attached to the bearing 2.

An operating rod 4 is inserted into the bearing 2 so as to be movable up and down, and a conical surface 40 is formed at the lower end of the operating rod to engage with a roller to be described later to control the opening/closing operation of the crimping lever 3. There is. The upper end of the operating rod 4 is connected by a pin 50 to one end of an operating lever 5 which is pivotally attached to the upper part of the main body 1 by a support shaft 15, and is adapted to be moved up and down by operating the operating lever.

A roller 30 is rotatably attached to the upper end of each caulking lever 3 by a pin 31, and a screw hole 32 extending toward the axis of the bearing 2 is formed at the lower end thereof. A tapered caulking pin 6 is screwed into the screw hole 32, and cooperates with the nut 60 so that it can be positioned at a desired position.

Each caulking lever 3 is biased by a spring 7 stretched between it and the bearing so as to open downward (hereinafter simply referred to as open) as shown by the broken line in FIG. 1, and when the roller 30 is operated. Conical surface 4 of rod 4
0 and is pushed radially outward into a closed state as shown by the solid line.

A guide member 8 is pivotally attached to a bracket 33 formed at the center of each crimping lever 3 by a pin 34. This guide member has a shape as shown in FIG. 3, and has a projection 80 formed at its lower end that extends sideways, that is, toward the axis of the bearing, and the tip of the projection engages with the capacitor case. An arcuate pressing surface 81 is formed. A substantially semicircular guide groove 82 for receiving the tip of the caulking pin 6 is formed on the lower surface of the protrusion 80 . A spring 9 is provided between the caulking lever 3 and the guide member 8, and presses the lower end of the guide member toward the axis of the bearing.

In the temporary crimping device 100 having the above configuration, the capacitor case into which the capacitor element and the seal rubber are inserted is held by the holder b on the turret a and is intermittently stopped at the position of the temporary crimping device 100.

The operating shaft 4 of the temporary crimping device is initially lifted upward (in the figure) by the operating lever 5 as shown by the chain line, and therefore the pair of crimping levers 3 are opened downward as shown by the chain line. However, when the other end of the operating lever 5 is lowered by a known means as shown in FIG. can be closed. A guide member 8 is supported by the caulking lever 3 via a pin 34, and biased toward the capacitor case c by a spring 9. Therefore, the crimping lever 3
When they approach each other across the capacitor case, the pressing surface 81 of the guide member 8 engages with the outer periphery of the capacitor case c as shown in FIG. 2, thereby clamping the capacitor case c before the crimping lever 3 Then, the crimping pin 6 moves forward along the guide groove 82 to form a depression d in the capacitor case.
Since the capacitor case is held along the pressing surface 81 of the guide member, the capacitor case c does not deform. Since this recess d is provided corresponding to the position of the capacitor sealing rubber, the lead wire l of the capacitor will not be misaligned even during the final tightening by rollers r and r' in FIG. 4.

As described above, according to the present invention, by performing temporary caulking in the pre-main caulking process to reliably fix the capacitor case, the elements inside, and the seal rubber, the problem that would occur with only conventional caulking devices This effectively prevents the lead wire position from shifting and the seal rubber from lifting up.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of the capacitor temporary crimping device according to the present invention, Fig. 2 is a sectional view taken along the line - in Fig. 1, Fig. 3 is a perspective view of the guide member, and Fig. 4 is the main crimping device. FIG. 5, which is a diagram showing the process, is a cross-sectional view of the capacitor. DESCRIPTION OF SYMBOLS 1... Main body, 2... Support body, 3... Crimping lever, 4... Operation rod, 6... Crimping pin, 8...
...Guide member.

Claims (1)

[Scope of utility model registration request] A pair of crimping levers are pivotally mounted on the support body so that the crimping levers can be opened and closed by an operating rod, crimping pins are attached to each of the crimping levers so as to face each other, and each of the crimping levers is provided with a crimping pin facing each other. A guide member having a pressing surface that can be engaged with the outer peripheral surface of the capacitor case and a guide groove for the crimping pin is pivotally attached to the crimping lever, and the guide member is placed between the pair of crimping levers. Temporary tightening device for capacitor case that presses against the capacitor case.