JP3116951B1 - Method and apparatus for producing seed plate for metal electrolysis - Google Patents

Abstract

Kind Code: A1 Abstract: The present invention provides a method and an apparatus for manufacturing a seed plate for metal electrolysis, which effectively removes distortion of a seed plate and bending caused by the distortion, and secures a seed plate with high flatness. The seed plate for metal electrolysis that has been peeled off by electrodeposition is passed through a roller leveler that is arranged with multiple work rolls staggered up and down, and then the sheet surface of the seed plate sent from the roller leveler is bent. A method for producing a seed plate for metal electrolysis in which a stamping bar to be prevented is pressed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a manufacturing method for correcting distortion of a seed plate used as a cathode plate in metal electrolysis, and an apparatus therefor.

[0002]

2. Description of the Related Art In metal electrolysis such as electrolysis refining and electrowinning of metal, a cathode plate called a seed plate and an anode plate called an anode are alternately arranged and suspended in an electrolytic cell to operate. From the viewpoint, the narrower the distance between the seed plate (cathode) and the anode (anode), the better. However, FIG.
As shown in (b), the seed plate used in the metal electrolysis is a thin metal plate C obtained by electrodepositing a target metal on a mother plate A made of stainless steel or the like and peeling off the metal itself. Above, the electrodeposition distortion and the distortion generated when peeled off from the base plate A make it difficult to avoid bending. Therefore, when the seed plate peeled off from the mother plate is directly suspended in the electrolytic cell, there is a possibility that the two plates may be in contact with each other due to the bending of the seed plate and short-circuited. It is difficult to perform the electrolytic operation by setting the interval of the electrodes to be narrow. For this reason,
Pressing stamping streaks on the seed plate peeled off from the mother plate to prevent bending, or using a roller leveler to repeatedly bend the seed plate to eliminate internal stress in the traveling direction Efforts have been made in the past to correct the distortion and improve the flatness.

[0003] However, in the method of embossing a stamping line by press working, it is difficult to remove the deformation stress when the seed plate is peeled off, and the entire seed plate is twisted due to a springback phenomenon. It has been pointed out that it has not yet been possible to satisfactorily correct the distortion of the seed plate and secure sufficient flatness. Further, it has been pointed out that if the press treatment is performed continuously, the mold is worn by repulsion of the seed plate, which leads to a decrease in straightening accuracy and a decrease in work efficiency.

[0004] In the method using a roller leveler, although the deformation stress when the seed plate is peeled can be removed, the roller leveler is not used because the peeled seed plate does not have a uniform thickness. It is extremely difficult to adjust the interval between the upper and lower work rolls, and the expected correction effect has not been realized. In particular, it has been pointed out that when the thickness of the seed plate varies greatly, the pressing force of the work roll against the plate surface becomes non-uniform, and rather, the seed plate is distorted and causes bending.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has been made in order to solve the problems. It is an object of the present invention to effectively reduce distortion of a seed plate and bending caused by the distortion. It is another object of the present invention to provide a method and an apparatus for manufacturing a seed plate for metal electrolysis, in which a seed plate having a high flatness is secured by removing the seed plate.

[0006]

Means for Solving the Problems The present invention has the following constitution in order to solve this problem and achieve the object. The invention according to claim 1 is a method for metal electrolysis which is electrodeposited on a mother plate and peeled off.
The seed plate is shifted multiple work rolls up and down in a zigzag pattern.
In the roller leveler arranged, the bending direction of the seed plate and
Feed from orthogonal direction, and then feed from roller leveler
Extends in the direction parallel to the bending direction on the protruded seed plate
The embossing press is applied to the entire surface of the seed plate with the punching bars of various patterns.
Characterized by engineering. Like this, roller leveler
-Primary correction by press work and secondary correction by press working
By successively and successively applying, the primary
It also fulfills the function of adjusting positive correction conditions,
Corrective effects beyond the sum of the effects of each secondary correction alone
And to improve it. Here, the bending direction
Primary correction by roller leveler for seed plate
The direction of the secondary correction by the machine and the press machine, the correction effect
The goal is to increase In addition, bending of the seed plate
Various types of punching streaks effective for stopping all over the board surface at the same time
It is intended to improve the correction effect by embossing. According to the second aspect of the present invention, a metal which is electrodeposited on a mother plate and peeled off is provided.
Gold that improves the flatness by correcting the distortion of the electrolysis seed plate
Apparatus for producing a seed plate for genus electrolysis, wherein the seed plate is bent.
A plurality of workpieces through which the seed plate is passed in a direction orthogonal to
Rollers are arranged in a staggered manner
It is installed at the subsequent stage of the roller leveler and the roller, and each
The launch line of the seed pattern is parallel to the bending direction of the seed plate
Embossing press on the entire surface of the seed plate so that
And a press machine for processing. like this
By transporting the seed plate to the roller leveler
Of primary straightening and seed plate that repeatedly bends through
Press stamping punches of various patterns to prevent bending on the surface
Secondary correction is performed continuously. This allows
It also has the function of adjusting the correction conditions of the secondary correction to the primary correction
And the total effect of the primary and secondary corrections alone
The aim is to improve and improve the correction effect beyond the sum. This
Here, a roller leveler is applied to a seed plate with a bending direction.
Direction of the second-order correction by the first-order correction and the flop-less machine by over
In order to enhance the correction effect. Further
In addition, a punch line of various patterns effective to prevent the bending of the seed plate
To improve the correction effect by simultaneously stamping the entire surface of the board
Is what you do.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a schematic configuration of an apparatus according to the embodiment, and FIG. 2 illustrates a method and an apparatus. As shown in FIGS. 1 and 2, the apparatus according to the present embodiment has both a roller leveler R and a press machine P, and a press machine P is connected to a rear stage of the roller leveler R, and a front stage of the roller leveler R and Transfer devices T1 and T2 for feeding the seed plate C are provided between the roller leveler R and the press P, and the primary correction by the roller leveler R and the second correction by the press P are performed on the transferred seed plate C. The next correction is performed continuously. Here, the roller leveler R moves the plurality of work rolls 1 in a direction orthogonal to the longitudinal direction , as shown in FIG.
In order, and staggered up and down ,
It is a multi-stage type in which the outside is supported by a plurality of backup rolls 2, and passes between the upper and lower work rolls 1 through a seed plate C to perform primary distortion correction.
A pusher 3 and a feed roller 4 for feeding the seed plate C are provided at a front stage of the roller leveler R, and a roller conveyor 5 for transporting the seed plate C sent from the roller leveler R is provided at a rear stage. ing. The press machine P has a punch C1 for preventing bending in the seed plate C which has been subjected to the primary straightening by the roller leveler R and sent out.
To perform a second correction. In the present embodiment, the embossing press machine P is used to form a punching pattern suitable for preventing bending by embossing press working. In this embodiment, the crossbar and the hanging hand mounting device H are interposed between the roller leveler R and the embossing press machine P, and the crossbar 6 and the hanging hand 7 are mounted on the seed plate C. The cross bar 6 and the lifting hand 7 are for transporting the corrected seed plate C in a suspended state.

Next, the method according to the present embodiment is as shown in FIG. 2 and will be described below. First, the seed plate C peeled from the mother plate is transferred to the front of the roller leveler R by the transfer device T1, and is sent to the roller leveler R. As described above, the seed plate C sent to the roller leveler R is meandered while passing between the plurality of work rolls 1 arranged in a staggered manner vertically, and repeatedly bent during the pressing. And perform a primary correction. The seed plate C, which has been subjected to the primary correction by the roller leveler R and sent to the traveling end thereof, is sent to the crossbar and the hanging device H by the transfer device T2. 7 is mounted and sent to an embossing press machine P, and the embossing press is performed to emboss a punching line C1 in a pattern suitable for preventing bending to perform a second straightening.

In this embodiment, the seed plate C is shown in FIG.
Is transported in a direction perpendicular to the bending direction indicated by the broken line and is fed into the roller leveler R, and the punch C1 in the direction parallel to the bending direction is embossed on the seed plate C sent from the roller leveler R by embossing. I have. This means that the seed plate C having a bending direction is subjected to primary correction by the roller leveler R in the direction orthogonal to the bending direction in the primary correction, and the secondary correction by the press machine P in the direction parallel to the bending direction. The correction is performed, and the correction is performed in two orthogonal directions to improve the correction effect.

The method and apparatus according to the present embodiment are as described above, and the seed plate C that is peeled off from the mother plate and has distortion and bending is provided.
, The first straightening by the roller leveler R and the second straightening by the press P are continuously performed. The primary correction by the roller leveler R is a so-called rough correction, and it is not possible to satisfactorily correct distortion and bending and secure sufficient flatness only by this. However, due to the primary correction, the deformation stress in the feed direction of the seed plate C is removed, and the torsion and bending are clearly reduced. In addition, there is an effect that uniformity of the spring back which is hindered in the press working is made uniform. As a result, the secondary straightening by the press machine P is functioning effectively, and the unevenness of the springback caused by the conventional press working has been significantly reduced. That is, the primary straightening by the roller leveler R does not stop at the same effect as the conventional one that has been carried out independently, but is performed by the press P
The basic conditions of the secondary straightening are prepared to make it easier to set the straightening conditions of the press machine, which eliminates or eliminates the factors that hindered and reduced the effect of press working when performed alone. Plays the function of
In other words, the effective correction effect of the press working by the press machine P in the present invention is ensured as long as the correction by the roller leveler R performed in the preceding stage is premised and depends on it. This point is an important feature of the present invention, and it is possible to improve the excellent straightening effect exceeding the sum of the straightening effect by the roller leveler and the straightening effect by the press machine, which has been conventionally performed alone. . In this embodiment, embossing press processing is adopted,
The fact that the punch C1 is simultaneously stamped on the entire surface of the seed plate C also greatly improves the correction effect.

The inventor of the present invention compared the flatness of a seed plate obtained by the method of the present invention with a seed plate obtained by performing only an embossing press which is conventionally considered to have a high straightening effect. Was. As a result, the seed plate according to the conventional example has the average strain amount x = 11.0 mm and the standard deviation σ = 1.3 mm, whereas the seed plate according to the present invention has the average strain amount x = 7.
The standard deviation σ was 0 mm = 0.5 mm, and a high correction effect was confirmed.

[0012]

The present invention is configured as described above.
The following effects are obtained. (1) According to the first aspect of the invention, a roller leveler
The primary correction by the press and the secondary correction by the press
If the primary correction is only its inherent effect
Also performs the function of adjusting the basic conditions of secondary correction.
Greatly improve the overall correction effect,
Skewers can be corrected satisfactorily and a seed plate with high flatness can be obtained.
Make it work. Here, primary correction by roller leveler
And the pressing direction of the secondary
As a result, the correction effect can be enhanced. Further
The bending of the seed plate by using embossing press processing
Simultaneous punching streaks of various patterns effective for prevention over the entire board surface
Can be stamped on. (2) According to the second aspect of the present invention, the seed plate is transported and
Primary straightening through roller leveler and second by press
Subsequent corrections can be made continuously. The primary correction is
A machine that prepares basic conditions for secondary correction as well as unique effects
It also plays an important role in improving the overall correction effect.
Seeds with high flatness
Allows you to get a board. Where the roller leveler
Of primary and secondary corrections by press machine
The direction is different, which can increase the corrective effect
it can. Furthermore, by using embossing press processing,
Various types of punching streaks effective for preventing the bending of the seed plate
Can be stamped simultaneously on the entire surface.

[Brief description of the drawings]

FIG. 1 is a side view showing a schematic configuration of an apparatus of the present invention according to an embodiment.

FIG. 2 is a plan view illustrating a method and an apparatus according to an embodiment of the present invention.

FIG. 3 is an explanatory diagram showing a main part of a roller leveler.

FIG. 4 is an explanatory diagram showing peeling of a seed plate from a mother plate.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Work roll 2 Backup roll 3 Pusher 4 Feed roller 5 Roller conveyor 6 Crossbar 7 Hanger A Mother plate B Electrolyzer C Seed plate C1 Emboss pattern H Crossbar and hanger mounting device M Resin masking P Emboss press machine R Roller leveler S Peeling blade T1, T2 Transfer device

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) C25C 7/02 B21D 1/02

Claims (2)

(57) [Claims] 1. Metal electrolysis which is electrodeposited on a mother plate and peeled off
Electrolytic treatment to improve the flatness by correcting the distortion of the seed plate
A method of manufacturing a seed plate, comprising: displacing a plurality of work rolls vertically in a staggered manner.
Bending direction of the seed plate to the roller leveler
Through from a direction perpendicular to, subsequently starting sheet fed from the roller leveler, songs
Punches of various patterns extending in the direction parallel to the cutting direction
And embossing the entire surface of the seed plate . 2. For metal electrolysis which is electrodeposited on a mother plate and peeled off.
Electrolytic treatment to improve the flatness by correcting the distortion of the seed plate
An apparatus for manufacturing a seed plate, wherein the seed plate is passed through in a direction orthogonal to a bending direction of the seed plate.
Multiple work rolls are staggered up and down
Roller leveler and a series of various patterns
Launching bar extends in a direction parallel to the bending direction of the seed plate
Press to emboss press the entire surface of the seed plate to form
An apparatus for producing a seed plate for metal electrolysis, comprising: