JPS6310182Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a high-speed caulking device for caulking aluminum cases, etc. used in the manufacturing process of electrolytic capacitors.

In order to improve work efficiency and increase productivity, the caulking device for electrolytic capacitors, etc. mentioned above is designed to constantly rotate the support shaft for supporting the roller lever to which the caulking roller is attached. The product is rotated around the center of the position, and by opening and closing the roller lever, the caulking roller performs caulking.The article that has been caulked is removed from that position, and the article to be caulked next is supplied to the caulking position. I have decided to do so.

However, with the conventional crimping device, it was not possible to set a large opening/closing angle for the crimping lever, so the support shaft had to be moved up and down with respect to the capacitor case each time, making it impossible to speed up the crimping work.

That is, the conventional caulking device has a hollow support shaft b that is constantly rotated, as shown in FIG.
is rotatably attached to a main body a that can be raised and lowered, a pair of roller levers c having a caulking roller d rotatably attached to the tip thereof are pivotally attached to the support shaft, and an opening/closing shaft e is mounted in the support shaft. is provided to be movable up and down, and the lower end taper part f of its opening/closing shaft pushes the roller g at the other end of the roller lever c to close the roller lever, thereby pressing the caulking roller against the outer periphery of the capacitor case C to perform caulking. That's what I do. However, with this device, the roller lever cannot be opened sufficiently, so the crimping roller is kept rotating and the turntable h is rotated to supply the capacitor case to the crimping position or to remove the capacitor case from that position. In order to take out the material without interfering with the rotational movement of the caulking roller, it is necessary to move the main body 2 up and down with respect to the turntable each time it is supplied and taken out. (b) It is difficult to speed up the caulking work, (c) It is difficult to adjust the device, (d) It is difficult to maintain high accuracy in the caulking process, etc. There was a problem.

The present invention was developed in view of the problems with conventional crimping devices, and its purpose is to eliminate the need to move the main body up and down by widening the arm supporting the crimping roller. The purpose is to speed up caulking by eliminating this.

The high-speed caulking device according to the present invention has a hollow support shaft rotatably attached to the main body, which is held in place with respect to the workpiece at the caulking position, directly above the caulking position, and a caulking roller rotates at the lower end of the support shaft. A pair of freely attached roller arms are pivotally connected, an opening/closing shaft is provided within the support shaft so as to be movable in the axial direction with respect to the support shaft, and a regulation is provided in which the lower end of the opening/closing shaft engages with the outer surface of the roller arm. Attach the member, rotate the support shaft, raise the regulating member relative to the support shaft, expand the roller arm, set the workpiece at the crimping position, lower the regulating member, close the roller arm, and close the crimping roller. caulk the workpiece.

An embodiment of the high speed crimping device of the present invention will be described below with reference to the drawings.

2 and 3, a high-speed crimping device 1 according to this embodiment is shown. The high-speed crimping device 1 comprises a main body 2 which is adapted to be held fixed in position in a predetermined relationship with respect to a capacitor case C supplied to a crimping position. A bearing hole 21 is formed in the main body 2 directly above the caulking position and extends vertically through the bearing hole 21, and a hollow support shaft 3 is rotatably installed in the bearing hole 21 via a bearing 22.

Two pairs of brackets 31 are provided at the lower end of the support shaft 3 symmetrically about the axis, and the upper end of a roller arm 32 is pivotally attached to each pair of brackets by a pin 33. A caulking roller is rotatably attached to the lower end of each roller arm 32 via a shaft 34. A pulley 35 is fixed to the upper end of the support shaft 3.

An opening/closing shaft 5 is mounted within the hollow support shaft 3 so as to rotate together with the key 51 and to be movable in the axial direction with respect to the support shaft. At the lower end of the opening/closing shaft 5, there is a frame portion 52 extending outside and parallel to the bracket of the support shaft and approximately perpendicularly along the axis of the opening/closing shaft.
is formed to surround the roller arm 32. An opening/closing roller 53 that can engage with the outer surface of the roller arm is attached to the frame portion 52 by a pin 54.

A motor 6 is attached to the main body 2, and a pulley 61 and a pulley 35 are fixed to the rotating shaft of the motor.
A belt 62 is hung between the two. An elevating lever 7 is further attached to the main body, one end of which is engaged in an annular groove 56 at the upper end of the opening/closing shaft, and a connecting rod 71 is attached to the other end. It is designed to move up and down.

In the above configuration, initially, the connecting rod 71 is lowered, the opening/closing shaft 5 is in the raised position (upper position) shown by the two-dot chain line via the lifting lever 7, and the opening/closing roller 53 is raised to the upper position. During this time, the motor 6 constantly rotates the motor pulley 61 to rotate the support shaft 3 supporting the roller arm 32 via the belt 62 and pulley 35, and the key 51 simultaneously rotates the opening/closing shaft 5. At this time, if the opening/closing roller 53 is in the upper position, the roller arm 3
2 together with the caulking roller 4 to the position shown by the chain line.
Opened by 90° centrifugal force.

Next, when the connecting rod 71 is raised, the opening/closing shaft 5 is lowered via the lever 7, the opening/closing roller 53 is also lowered, and the opening/closing roller closes the roller arm 32, and the caulking roller 4 is at the position where the capacitor case is caulked. When crimping is completed, the connecting rod 71 is lowered and the opening/closing shaft 5 is raised via the lever 7 to bring the opening/closing roller 53 to the upper position.The roller arm 32 is opened by centrifugal force and the crimping roller is placed in the upper position. At this time, the caulking roller 4 is placed above the lead wire 1 of the capacitor, so the turntable 8 rotates and the capacitor case C, which is the workpiece, moves to the next process. During this process, the main body 2 is always in a fixed state.

According to the present invention, it is only necessary to hold the main body of the caulking device in a fixed position with respect to the workpiece at the caulking position and simply move the opening/closing shaft up and down, so unlike conventional caulking devices, the main body must also be moved up and down. Capacitor cases, etc. can be caulked at high speed and in a short time compared to conventional methods.

Furthermore, since the belt that provides rotational drive can always be kept in a constant position, there is little wear and tear on the belt. In addition, in conventional caulking devices, the lever was attached to the main body, so the movement of the connecting rod was large and complicated, but with this invention, the movement of the connecting rod is small and simple because the main body does not move up and down. I'm getting better.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a conventional crimping device, Fig. 2 is a sectional view of a crimping device according to the present invention, and Fig. 3 is a sectional view of a crimping device according to the present invention.
FIG. DESCRIPTION OF SYMBOLS 1... Crimping device, 2... Main body, 3... Support shaft, 4... Crimping roller, 5... Opening/closing shaft, 32...
...Roller arm, 51...Frame, 52...Opening/closing roller.

Claims (1)

[Scope of utility model registration request] A high-speed crimping device characterized in that a hollow support shaft is rotatably attached to a main body which is held in a fixed position with respect to a workpiece at the crimping position, directly above the crimping position, a pair of roller arms to which crimping rollers are rotatably attached are pivotally attached to the lower end of the support shaft, an opening/closing shaft is provided within the support shaft so as to be axially movable relative to the support shaft, a regulating member which engages with the outer surface of the roller arm is attached to the lower end of the opening/closing shaft, and the expansion of the roller arm is controlled by the regulating member.