JPS6135303Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is capable of forming a group in the peripheral wall near the opening of, for example, an anode can of a dry battery, and forming the peripheral wall in a tapered shape that widens from the position of the group to the opening. This invention relates to a grouping device.

Conventionally, as shown in FIG. 7, this type of grouping device fixedly supports the bottom part 20a of the anode can 20 by fitting it into a fixed pedestal 21, and frees the bottom part 20a of the anode can 20 along the outer circumferential surface near the opening of the anode can 20. It is known that the roller support shaft 24 is rotated, for example, in the direction of the arrow 6A while pressing the circumferential surface 23 of the roller 22 to form a group 25 on the circumferential wall 20b of the anode can 20.

However, in the conventional grouping device, the groups 25 are formed by simply pressing the circumferential surface 23 of the free roller 22 against the outer circumferential surface of the anode can 20 to push the circumferential wall 20b of the anode can 20 inward. Therefore, it is difficult to form the group 25 into a predetermined shape, which causes variations, and requires multiple steps, resulting in a long processing time and poor workability.Furthermore, the structure of the device is complicated. There are some drawbacks.

This idea was created in view of the above points, and aims to shorten processing time and improve work efficiency.
It enables the formation of groups without variation,
Moreover, it is an object of the present invention to provide a grouping device in which an opening is formed into a tapered shape that widens toward the end from the group position at the same time as group formation.

Embodiments of this invention will be described below with reference to the drawings.

1 and 2, reference numeral 1 denotes a revolution shaft rotatably supported by a frame 2 via radial bearings 1a, 1a and a thrust bearing 1b, and a driven wheel 3 such as a sprocket is attached to one end of the revolution shaft.

4 indicates a revolving member. This revolving member 4 is a drum 4a fixed to the revolving shaft 1 so as to be rotatable at the same time.
and annular arms 4b and 4c attached to both ends of the drum 4a.

Reference numeral 5 denotes a cradle, which is set at a predetermined interval on the same circumferential curvature of one of the annular arms 4b, and is fitted onto the bottom of the anode can to support the anode can, which will be described later. The arm 4b is rotatably supported by a thrust bearing 5a and a radial bearing 5b, and a fitting recess 5c is provided in the center of one end, and a fitting recess 5c is provided in the center of the fitting recess 5c. A knockout pin 5d is provided inside the body.

6 indicates the central axis. This center shaft 6 faces on the same axis as the same curvature on which the pedestal 5 is set, and rotates and axially moves by bearing members 7, 7 with respect to the other annular arm 4c of the revolving member 4. Possibly supported. A rotating group forming surface 6a is provided on the outer periphery of one end, that is, on the side opposite to the pedestal 5.
A tapered portion that widens toward the top from the rotating group forming surface 6a is provided, and the annular case 6
b is fitted and fixed on the outside, and a kick-out ring 6c and a spring 6d are housed in this case 6b.

8 indicates an axis moving mechanism. This shaft moving mechanism 8 is for reciprocating the center shaft 6 in the axial direction, and includes a guide groove 8a fixed to the inner surface of the frame 2, and a roller 8b that is fitted in the guide groove 8a and rolls. The connecting member 8c is attached to the center shaft 6 by being held between fixing members 9, 9 so that only the center shaft 6 can rotate. Further, the guide groove 8a has an open part A and a closed part B, which are displaced in the width direction of the guide groove 8a, as shown in FIG. 3, in order to reciprocate the center shaft 6 with a predetermined stroke.

The center shaft rotation mechanism 10 is connected to the other end of the center shaft 6, and as shown in FIG.
The frame 2 is made up of a gear 10b that meshes with the gear 10a, a gear 10c that is coaxial with the gear 10b, and a circular rack plate 10d that meshes with the gear 10c and is fixed to the frame 2, as shown in FIG.

A fixed member 11 is fixed to the frame 2 by a holder 11a, and has an arcuate group forming end face 11b at its inner end. The group forming end surface 11b is the rotation group forming surface 6 of the center shaft 6.
a is fitted into the opening 12a and is placed opposite to the orbit of the anode can 12 which rotates simultaneously with the center shaft 6,
It is adapted to come into sliding contact with the rotating group forming surface 6a of the central shaft 6 through the peripheral wall portion 12b of the anode can 12.

13 is one of the annular arms 4 corresponding to the receiving base 5
The anode can holding arm is set at b.

In the above configuration, as shown in position a in FIG. 5, the anode can 12 is fed and connected by an anode can feeding mechanism (not shown) with the opening 12a facing upward and the bottom 12c facing downward. It is held by a can holding arm 13. When the revolving member 4 revolves in the direction of the arrow 5A and the anode can 12 reaches the position b in FIG. 5, the roller 8b of the shaft moving mechanism 8 moves into the guide groove 8a.
, the center shaft 6 rotates on its own axis and moves in the direction of the pedestal 5 to fit the rotating group forming surface 6a into the opening 12a of the anode can 12, and the annular case 6b The open end of the anode can 12 is pushed down by the spring force of the spring 6d biased by the push-out ring 6c, and the bottom portion 12c is fitted into the fitting recess 5c of the pedestal 5. Therefore, the anode can 12 rotates simultaneously with the center shaft 6 and the pedestal 5.

In the above state, the anode can 12 is further revolved and placed at a position corresponding to the fixed member 11, as shown in FIG. 5c.
As a result, the peripheral wall portion 12b of the anode can 12, which revolves while rotating, touches the rotating group forming surface 6a of the center shaft 6 and the group forming end surface 11b of the fixed mold member 11, as shown in FIG. It is then pressed and bent to form a group X having a predetermined shape.

The anode can 12 in which a predetermined group
When the center shaft 6 is released from the fixed member 11 and reaches the position d in FIG. is the opening 1 of the anode can 12
2a, the open end of the anode can 12 is pushed down by the kick-out ring 6c which is biased by the spring force of the spring 6d, and the center shaft 6
The anode can 12 is separated from the anode can, and at the same time, the bottom part 12 is pushed out from the fitting recess 5c of the pedestal 5 by the operation of the knock-out pin 5d, and is taken out and stored outside the machine by an unillustrated take-out mechanism. .

The above operations are sequentially performed on the anode cans 12 that are continuously supplied from the anode can feeding mechanism on the axis of the pedestal 5 and the center shaft 6, and grooving is performed continuously.

As explained above, in this invention, the group forming surface 6a of the center shaft 6 is fitted into the opening 12a of the anode can 12, and the anode can 12 is rotated on its own axis and revolved by the rotation of the revolution axis 1. The peripheral part 12
b is pressed against the group-forming end surface 11b of the fixed mold member 11 and brought into sliding contact, and the peripheral part 12b is pressed and bent to form the group X. Therefore, the group X can be formed in a short time, and the work is easy. performance is greatly improved. Moreover, the peripheral wall portion 1 of the anode can 12
Since the group forming end surface 11b of the stationary member 11 is brought into sliding contact with the group forming surface 6a of the center shaft 6 via 2b, the circumferential wall portion 12b prevents the narrow pressure of both the rotating group forming surface 6a and the group forming end surface 11b. They will be pushed and bent. Therefore, there is no variation in the group X that is formed. Further, although the anode can 12 is required to have the peripheral wall portion 12b tapered from the position of the group The portion 12b can be easily formed into a tapered shape.

In the above embodiment, a device is described in which grooving is performed by making the anode can 12 revolve at a predetermined curvature and simultaneously rotate, but this invention is not limited to the above embodiment.
Even if the anode can 12 is configured to rotate while moving linearly, the same effects as in the above embodiment can be obtained.

[Brief explanation of the drawing]

Figure 1 is a half-cut sectional view showing an embodiment of this invention, Figure 2 is a schematic plan view of the same, Figure 3 is an exploded front view showing the guide groove of the shaft moving mechanism, and Figure 4 is the center shaft rotation mechanism. FIG. 5 is an explanatory view showing the procedure for group formation, FIG. 6 is a sectional view showing the correspondence between the anode can and the group forming member, and FIG. 7 is an explanatory view of a conventional example. 1...revolution axis, 4...revolution member, 5... pedestal,
6...Central shaft, 6a...Rotation group forming surface, 8...
...Axis moving mechanism, 10... Middle axis rotation mechanism, 11...
Fixed member, 11b...Group forming end surface, 12
...anode can, 12a...opening, 12b...periphery, 12c...bottom.

Claims (1)

[Scope of utility model registration request] The anode can 1 is fitted onto the bottom 12C of the anode can 12.
2, and a pedestal 5 supported by the revolving member 4 so as to be rotatable at the same time as the revolving member 4; A central shaft 6 is provided with a rotating group forming surface 6a on the outer peripheral surface of one end and a tapered portion extending from the rotating group forming surface 6a to the upper part, and is connected to the central shaft 6 to support the rotating group forming surface 6a on a pedestal 5. The opening 12 of the anode can 12 held in
Shaft moving mechanism 8 for fitting into and separating from a
, a center shaft rotation mechanism 10 connected to the other end of the center shaft 6, and a revolution shaft 1 to which the revolution member 4 is attached.
The rotating group forming surface 6a of the center shaft 6 is fitted into the anode can 12, and the anode can 12 is disposed opposite to the orbit of the anode can 12, which rotates simultaneously with the center shaft 6 and revolves simultaneously with the revolving member 4. A grouping device comprising a fixed member 11 provided with a group forming end surface 11b that comes into sliding contact with the rotating group forming surface 6a through a circumferential wall portion 12b.