JP2607784Y2 - Can sea turret vertical shaft fixing device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixing device for a can turret upper and lower shaft for winding a can and a can lid.

[0002]

2. Description of the Related Art Referring to FIGS. 4 and 5, the prior art will be described. FIG. 4 is a side sectional view of a conventional can sea turret vertical shaft fixing device, and FIG. .
7 and 5, the can sea turret vertical shaft fixing device includes a sleeve 30, a sliding hub 31, a key 33, a cap 32, a cap tightening bolt 35, and the like. The sleeve 30 has a shaft diameter φd ₁ and the sliding hub 3
1 has an inner diameter φD ₁ , and a key 33 having a width w for transmitting the rotation of the sleeve 30 to the sliding hub 31 is provided between the sleeve 30 and the sliding hub 31. Further, a cap 32 is provided to fix the vertical axis of the sleeve 30 and the sliding hub 31.

In FIG. 4, reference numeral 36 denotes a P.C. C. A lower turret rotated at D (pitch circle diameter), and an upper turret 37 rotates a seaming roll (not shown) for winding the can similarly. In the vertical shaft fixing device, the turret height is changed by changing the can type or the like by changing the height H between the lower turret 36 and the upper turret 37. The lower turret 36 and the sleeve 30 are fixed at the same height, and the sliding hub 31 moves up and down between the shaft diameter φd _{1 of the} sleeve 30 and the inner diameter φD ₁ of the sliding hub 31.
As a result, the height of the upper turret 37 connected to the sliding hub 31 changes.

The fixing between the sleeve 30 and the sliding hub 31 is performed as follows.
A frictional force is generated between the sleeve 32 by tightening the cap 32 of a part of the sliding hub 31 having a notch to a screw 34 provided on the sliding hub 31 side. Let me do it. Thereby, the sleeve 30
And the sliding hub 31 can be fixed in the height direction. Further, the rotation of the sleeve 30 can be transmitted to the sliding hub 31 by a key 33 arranged in a key groove provided between the sleeve 30 and the sliding hub 31.

[0005]

By the way, in the fixing device in the height direction of the sleeve 30 and the sliding hub 31 as shown in FIG. 4, the shaft diameter φd _{1 of the} sleeve 30 and the sliding hub 3
1 key 3 for sliding gap and rotation transmission of inner diameter φD ₁
3 of the key width w and the sleeve 30 key groove width w _2, because the sliding gap such as a combination clearance key groove width w ₁ of the sliding hub 31 is present, the bolts 3 fastening the cap 32 to the sliding hub 31
When tightened by 5, will be sliding gap of the sliding gap and key key groove of the sleeve 30 and the sliding hub 31 is closer to the one direction, [delta] sliding hub 31 with respect to the center of the sleeve 30 ₁ Will be produced. Accordingly, the mounting surface of the sliding hub 31 and the upper turret 37 is also δ.
₂ occurs, and as a result, the sliding hub 31
However, as shown in FIG. 8, a rotational position shift of δ ₃ occurs at the plane position. These misalignments result in poor parallelism between the lower turret 36 and the upper turret 37; C. D is caused, and the lower turret 36 and the upper turret 37 are displaced in a plane rotation position, so that a state is exerted on the can-tightening performance of the can and the can lid.

Therefore, in the conventional apparatus, in order to increase the parallelism between the lower turret 36 and the upper turret 37, a shim is provided on the mounting surface between the sliding hub 31 and the upper turret 37, or the flat surface between the upper turret 37 and the lower turret 36 is formed. It is necessary to adjust the amount of displacement of the upper turret 37 in the rotational direction with respect to the amount of planar displacement in a state in which the cap 32 is tightened in order to perform a proper alignment. It takes time to adjust.

Therefore, in the present invention, an elastic ring 24 is provided at a contact portion between the sliding hub 22 and the sleeve 21, and the elastic ring 24 is deformed toward the sleeve 21 by tightening the elastic ring 24 with a bolt 25. Between the sleeve 21 and the sliding hub 22 in which the frictional force is generated so that the height direction between the sleeve 21 and the sliding hub 22 is fixed.
An object of the present invention is to solve the drawbacks of the above-described prior art sleeve and sliding hub upper and lower shaft fixing devices.

[0008]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a turret vertical shaft sliding portion of a can seamer, which is a device for winding a can and a can lid, by fitting a sliding hub to the outside of a sleeve and sliding the hub. A hole is formed in the contact portion of the moving hub with the sleeve, and a comb-shaped elastic ring is fitted into the hole,
With the comb teeth facing the sleeve, a bolt is screwed in from the outside of the sliding hub, and screwed into the comb teeth of the elastic ring. The deformed portion is pressed against the sleeve to generate a frictional force between the sliding hub and the sleeve, which is a means for solving the problem.

[0009]

When the tightening bolt attached to the lower portion of the elastic ring of the sliding hub is tightened, the elastic ring is moved in the direction indicated by arrows 28 and 2.
9, the frictional force can be generated between the sleeve and the sleeve, and the sleeve and the sliding hub can be fixed. In the present invention, since the elastic ring portion is in contact with the entire circumference of the sleeve, the frictional force can be uniformly generated on the entire circumference by uniform bolt tightening, and the sleeve can be uniformly tightened. As a result, the inclination of the sliding hub with respect to the center of the sleeve and the inclination of the mounting surface between the sliding hub and the upper turret can be prevented.

[0010]

1 to 3 show an embodiment of the present invention. In the drawings, reference numeral 21 denotes a sleeve, 22 denotes a sliding hub, 23 denotes a transmission key, and 24 denotes a transmission key. An elastic ring, 25 is an elastic ring tightening bolt, 26 is a lower turret, 27 is an upper turret, 28 and 29 are elastic ring deformation directions, L is the width of the elastic ring, φd ₃ is the shaft diameter of the sleeve, _and φD ₃ is sliding. Hub inner diameter. The vertical shaft fixing device of this embodiment includes an elastic ring 24 provided at a contact portion between the sliding hub 22 and the sleeve 21 and a bolt 25 for tightening and deforming the elastic ring. Therefore, the elastic ring 24 is generated by tightening the tightening bolt 25 attached to the lower portion of the elastic ring 24 of the sliding hub 22. The sleeve 21 and the sliding hub 22 are fixed by the frictional force at this time.

The elastic ring 24 is provided with a tightening bolt 25.
2 as long as it has a strength to maintain the frictional force at the time of fixing, and neither the width nor the length is specified. The material is not particularly limited, but alloy steel and spring steel are suitable in consideration of strength and the like. Further, the number of the elastic ring tightening bolts 25 is not particularly defined because it depends on the circumference and strength of the elastic ring. This embodiment shows a case where the tightening is performed at four places. In addition, tightening bolt 25
Is not particularly specified because it varies depending on the strength due to the width L of the elastic ring. In this embodiment, a structure is shown in which the tightening bolts 25 are individually tightened from the lower surface of the sliding hub 22 to deform the elastic ring. It may be a structure that fits.

[0012]

As described above in detail, according to the present invention, the elastic ring is deformed in the directions of arrows 28 and 29 by tightening the tightening bolt attached to the lower portion of the elastic ring of the sliding hub, and the sleeve is turned. Between the sleeve and the sliding hub.
In the present invention, since the elastic ring portion is in contact with the entire circumference of the sleeve, the frictional force can be uniformly generated on the entire circumference by uniform bolt tightening, and the sleeve can be uniformly tightened. As a result, the inclination of the sliding hub with respect to the center of the sleeve and the inclination of the mounting surface between the sliding hub and the upper turret can be prevented.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a turret vertical shaft fixing device according to an embodiment of the present invention.

FIG. 2 is a detailed view of a portion D in FIG. 1;

FIG. 3 is a sectional view taken along line CC of FIG. 1;

FIG. 4 is a longitudinal sectional view of a conventional turret vertical shaft fixing device.

FIG. 5 is a sectional view taken along the line EE of FIG. 4;

[Explanation of symbols]

Reference Signs List 21 sleeve 22 sliding hub 23 transmission key 24 elastic ring 25 elastic ring tightening bolt 26 lower turret 27 upper turret 28, 29 elastic ring deformation direction φd ₃ fixed rotating shaft shaft diameter φD ₃ sliding hub inner diameter L elastic ring width

Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B21D 51/30-51/32

Claims (1)

(57) [Scope of request for utility model registration] In a turret vertical shaft sliding portion of a can seamer which is a device for winding a can and a can lid, a sliding hub is fitted on the outside of a sleeve and a hole is formed in a contact portion of the sliding hub with the sleeve. Is formed, a comb-shaped elastic ring is fitted into the hole, the comb-shaped portion is opposed to the sleeve, a bolt is screwed from outside the sliding hub, and the comb-shaped of the elastic ring is formed. It is characterized in that the toothed portion of the elastic ring is deformed by screwing into the portion and pressed against the sleeve to generate a frictional force between the sliding hub and the sleeve. Can sea turret vertical shaft fixing device.