JPS5942166Y2 - Beading press for seed plate - Google Patents

Description

[Detailed description of the invention] This invention relates to a beading press for seed plates.

For example, in the electrolytic refining of copper, the cand charged into the electrolytic tank is twisted, distorted, etc., and as the electrolysis progresses, short circuits occur, which not only causes a decrease in current efficiency but also reduces the quality of the product. Getting worse.

For this reason, before inserting the seed plate into the electrolytic cell, a pattern is applied to the seed plate using a seed plate beading press to correct twisting and distortion and to prevent bending due to electrolytic stress.

Patterning on the seed plate is done by pressing it with a constant pressure using a hydraulic cylinder, etc. However, at the same time as the pattern is applied to the seed plate, twisting or distortion may occur, or if the seed plate is twisted and has poor verticality. In addition, the press pressure must be adjusted every time the hardness or thickness of the seed plate changes.

In addition, the electrodeposited surface of a seed plate electrolytic cell is generally more uneven than the opposite side, so the surface of the mold that comes into direct contact with this electrodeposited surface is subject to severe wear, requiring a large amount of repair costs. was.

The object of this invention is to provide a beading press for seed plates that can eliminate the drawbacks of the conventional ones as described above.

This invention will be explained with reference to embodiments shown in the drawings.

After uniformly applying adhesive to the upper mold 2 of the seed plate beading press 1, a square rubber or resin inner sheet 3 smaller than the upper mold 2 is placed in a fixed position on the lower mold 5. A strip-shaped edge sheet 4 is set around the edge sheet 4 with a gap slightly apart from the middle sheet 3, pressure is applied as the upper mold 2 is lowered, and the sheet is crimped by leaving it for a certain period of time.

Note that the sheets should not be made into the middle sheet 3 and the edge sheet 4,
It may also be on the - side.

Further, the lower mold 5 does not need to be subjected to any special treatment, but a protective plate 6 (such as a thin iron plate) may be attached as described below.

That is, with a rubber-based or resin-based sheet attached to the upper mold 2, a predetermined protection plate 6 (such as a thin iron plate) made of a material that is wear-resistant and easily conforms to the mold is placed on the lower mold 5 in a fixed position. and apply pressure.

Frame it under pressure, then tighten it with screws 7.

In this state, the pressurized state is maintained at a constant pressure and for a certain period of time, and the lower mold 5 and the protective plate 6 (thin iron plate, etc.) are blended together, so that the same function as when used with the lower mold 5 itself is achieved. In addition, if the surface of the lower mold 50 is pressed so that it is in direct contact with the electrodeposited surface of the seed plate electrolytic cell, when the lower mold 5 becomes worn, only the protective plate 6 (thin iron plate, etc.) can be replaced. Therefore, the cost of repairing the lower mold 5 is significantly reduced.

This invention is constructed as described above, and the elastic sheet absorbs the twisting and distortion caused by the press when patterning the seed plate, and the seed plate has good verticality regardless of the quality of the seed plate. is obtained.

In addition, if a removable protection plate (such as a thin iron plate) is attached to the lower mold, it is even more effective because it can be removed in the event of wear and direct wear of the lower mold can be prevented.

Also, if the edge of the rubber or resin sheet bonded to the upper mold is likely to be damaged by the blister that occurs at the edge of the seed plate, divide it into two parts as described above, and replace only the edge sheet when it is worn out. This is very advantageous in terms of maintenance.

[Brief explanation of the drawing]

Figure 1 is a front view of the seed plate beading press, Figure 2 is a front view of the upper and lower molds, Figure 3 is a plan view of the upper mold,
Figure 4 is a cross-sectional view of Figure 3, Figure 5 is a partially enlarged view of Figure 4, Figure 6 is a plan view of the lower mold, Figure 7 is a cross-sectional view of Figure 6, and Figure 8 is a cross-sectional view of Figure 3. The figure is a partially enlarged view of FIG. 7. 1... Beading press for seed plate, 2... Beating mold, 3 Middle sheet, 4... Edge sheet, 5...
...Lower mold, 6...Protection plate (thin iron plate, etc.).

Claims (1)

[Scope of Claim for Utility Model Registration] l. A beading press for seed plates having a mold in which an elastic sheet is adhered to the surface of the upper mold or the lower mold that faces the lower mold or the upper mold. 2. The beading press for seed boards as defined in Claim 1 of the utility model registration, wherein the elastic sheet is a rubber-based or resin-based sheet. 3. A beading press for a seed plate in which the elastic sheet is comprised of an edge sheet and an inner sheet, as set forth in claim 1 of the utility model registration.