JP2650565B2 - How to attach the edge protector to the motherboard for seed plate production - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a seed plate for use in electrolytic refining of copper or the like, which is used to smoothly attach an edge protector for protecting the edge of the mother plate to the mother plate. The present invention relates to a method of attaching an edge protector to a motherboard for producing a seed plate.

[0002]

2. Description of the Related Art Generally, when copper is electrolytically refined, a thin plate of pure copper (hereinafter referred to as a seed plate) having a thickness of 0.5 to 1.0 mm is used as a cathode.
Is used. As shown in FIGS. 5 and 6, this seed plate is used for carrying out electrolysis by using an anode made of crude copper 1 or the like and a base plate 2 made of stainless steel or the like as a cathode and performing electrolysis. And then peeling it off from the mother plate 2. At this time, it is prevented that the seed plates electrodeposited on both sides of the mother plate 2 are connected at the edge of the mother plate 2, and the seed plate is easily separated from the mother plate 2 so that the negative and positive electrodes do not come into contact with each other. Therefore, an insulating edge protector 3 is attached to the periphery of the mother plate 2.

[0003]

By the way, as the above-mentioned edge protective body, one having a shape as shown in FIG. 7 (for bottom) and FIG. 8 (for side) is considered. That is, the mounting groove 12 for mounting the mother plate 2 on one side surface 11 of the rod 10.
Is formed along the longitudinal direction of the rod 10, and a fitting recess 15 for mounting a fastening rod 14 is formed on the other side surface 13 of the rod 10 along the longitudinal direction of the rod 10. It is. Then, the base plate 2 is
When mounting the base plate 2 in the mounting groove 12, the fastening rod 14 having a larger diameter than the fitting recess 15 is inserted into the fitting recess 15. The mounting groove 12 is narrowed by being pushed in from a direction orthogonal to the longitudinal direction, so that the mounting groove 12 is further pressed against the mother plate 2. However, when the tightening rod 14 having a larger diameter than the fitting recess 15 is forcibly pushed into the opening from the opening smaller than the inner diameter of the fitting recess 15 as described above, Tightening rod 1
In addition, there is a problem that it is difficult to mount the edge protector 4 and that an excessive force is easily applied to the fitting recess 15, which adversely affects the life of the edge protection body.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to enable a fastener to be easily mounted in a fitting recess and to provide an edge protector on a base plate. It is an object of the present invention to provide a method of attaching an edge protector to a motherboard for producing a seed plate, which can be smoothly and reliably attached, and which can be used in a healthy state for a long period of time.

[0005]

In order to achieve the above object, the present invention is directed to a rod-like body, wherein a mounting groove for mounting a mother plate is formed along one side of the rod-like body along a longitudinal direction of the rod-like body. On the other side, a fitting recess for mounting a fastener is formed along the longitudinal direction of the rod-shaped body. A method for mounting an edge protector, comprising: after mounting the mother plate in the mounting groove, inserting a fastener formed to be smaller than the size of the fitting recess into the fitting recess; By heating and expanding the edge protector and the fastener by immersing the edge protector, the fastener is mounted in the fitting recess of the edge protector.

[0006]

According to the method of attaching the edge protector to the mother plate for producing a seed plate according to the present invention, the fastening member formed to be smaller than the size of the fitting recess is easily tightened into the fitting recess. The fastener is inserted, and the fitting recess of the edge protection body and the fastener are heated and expanded in the electrolytic cell, and the fastener is firmly mounted in the fitting recess of the edge protection body.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is a side view showing an example of an edge protection body for a bottom portion, and FIG. 2 is a side view showing an example of an edge protection body for a side portion. In these figures, reference numerals 20A and 20B denote rod-like bodies made of synthetic resin (for example, those containing polyphenylene ether and high-impact polystyrene resin as main components, commercial products manufactured by Mitsubishi Gas Chemical Co., Ltd., trade name Iupiace, etc.). The rods 20A and 20B are formed by extrusion. On one side surface 21 of each of the rods 20A and 20B, mounting grooves 22A and 22B for mounting a mother plate are formed along the longitudinal direction of the rods 20A and 20B. ,
On the other side surface 23 of the rod-shaped body 20B, arc-shaped fitting recesses 25A and 25B for mounting the fastening rod 40 are provided.
A, 20B are formed along the longitudinal direction. Also,
The mounting grooves 22A, 22B and the fitting recesses 25A, 25
B on both side surfaces 2 of rod-shaped bodies 20A and 20B respectively formed
Between the pair of outer surfaces 26A, 26B connected to the mounting recesses 25A, 25B, the mounting grooves 22A, 22B are formed.
The outer surface 26A, 26B is provided with an arc-shaped concave streak 27A at an intermediate portion between the outer surfaces 26A, 26B.
Alternatively, the flat inclined surface 27B is formed by the rod-shaped members 20A, 2A.
OB are formed along the longitudinal direction. Further, a rubber elastic body such as silicon rubber is attached as a seal member 30 in the mounting grooves 22A and 22B by bonding or the like. Furthermore, the outer diameter of the tightening rod 40 is set to be equal to or less than the inner diameter of each of the fitting recesses 25A and 25B, and the material of the tightening rod 40 is excellent in corrosion resistance and has a large coefficient of thermal expansion. For example, synthetic resins such as low-density polyethylene, polypropylene, and silicone resin can be used.

In the edge protector constructed as described above, first, the rods 20A and 20B are formed by extrusion. In this case, a pair of outer surfaces 26A, 26B set so as to narrow from the fitting recesses 25A, 25B toward the mounting grooves 22A, 22B, and an intermediate portion between the outer surfaces 26A, 26B. Arcuate concave stripe 2
By reducing the thickness of the thick portion as much as possible with the 7A or the flat inclined surface 27B, the heat radiation characteristics in extrusion molding can be improved, and the thermal stress remaining inside can be reduced, and therefore, the product life can be reduced. Can be extended significantly. Then, after the mother plate is mounted in a state where the sealing member 30 is attached in the mounting grooves 22A and 22B, the fastening rod 40 is inserted into the fitting recesses 25A and 25B along the longitudinal direction. insert. In this case, since the outer diameter of the tightening rod 40 is set to be equal to or less than the inner diameter of each of the fitting recesses 25A and 25B, the fastening rod 40 is smoothly mounted on each of the fitting recesses 25A and 25B. In this state, when the mother plate is immersed in the electrolytic cell together with the edge protector, the fitting recesses 25A and 25B and the tightening rod 40 are both heated by the temperature of the electrolytic solution (60 to 70 ° C.). As a result, the mother plate is firmly clamped in each of the mounting grooves 22A and 22B in order to expand.
The sealing member 30 is securely adhered between the mounting grooves 22A and 22B and the mother plate, and a sufficient sealing property is secured.
Although the tightening rod 40 is inserted into each of the fitting recesses 25A and 25B along the longitudinal direction, it may be inserted from a direction perpendicular to the longitudinal direction.
Also in this case, as compared with the conventional example using the tightening rod 14 having a diameter larger than the inner diameter of each of the fitting recesses 15, the mounting becomes easier as the outer diameter of the tightening rod 40 is reduced. Also, as the outer diameter of the tightening rod 40 is reduced, the possibility that the tightening rod 40 will be detached from each of the fitting recesses 25A and 25B at normal temperature increases.
As shown in the figure, both ends of the bottom edge protector (rod 20A) are located below the lower end of the side edge protector (rod 20B), and the side edge protector (rod 20A) is positioned. Body (rod 2
It is preferable to prevent the fastening rod 40 from dropping from the lower end of OB). Further, when the bottom edge protector (bar-shaped body 20A) is not attached to the mother plate (a mother plate with a groove), the upper end of the tightening rod 40 and the upper end of each of the bar-shaped bodies 20A and 20B are provided. It is preferable to provide a locking flange portion. Furthermore, the tightening rod 40
May be formed by coating a body made of a shape memory alloy with a synthetic resin which is stretchable and has excellent corrosion resistance.

FIG. 4 shows a cylindrical fastening rod 4.
2, a pair of flat surfaces 43 parallel to each other are formed. Then, both flat surfaces 4 of the tightening rod 42
The gap (small width portion) 44 between the holes 3 is set smaller than the width of the opening 28A of the fitting recess 25A, and the outer diameter (large width portion) 45 of the tightening rod 42 is Place 2
The inner diameter is set to 5A or less. In the fastening rod 42 configured as described above, FIG.
As shown in the figure, after the fastening rod 42 is inserted into the fitting recess 25A with the circumferential surface of the fastening rod 42 facing the opening 28A of the fitting recess 25A, the fastening rod 42 is moved along its axis. By rotating around the predetermined angle, the fastening rod 42 is smoothly mounted in the fitting recess 25A. In FIG. 4, the edge protection body for the bottom has been described. In each of the above embodiments, the rubber member such as silicone rubber is used as the seal member 30. However, the present invention is not limited to this, and the rod members 20A and 20B may be extruded using a synthetic resin such as soft PVC. It may be integrated at the time of molding by molding, and further, a rubber material such as neoprene rubber may be applied to the mounting groove 22.
A, 22B may be adhered to the tip. Further, the tightening rod 40 may be any of various types such as a columnar member shown in FIGS. 1 and 2, a columnar member having a pair of parallel flat surfaces shown in FIG. Can be used.

[0011]

As described above, according to the present invention, a mounting groove for mounting a mother plate on one side of a rod is formed along the longitudinal direction of the rod, and a fastening tool is provided on the other side of the rod. Attachment of the edge protector to the base plate for producing a seed plate, in which the edge protector having the fitting recess formed for mounting along the longitudinal direction of the rod is attached to both side edges or the lower edge of the mother plate. After the mother plate is mounted in the mounting groove, a fastener formed to have a dimension equal to or smaller than the size of the fitting recess is inserted into the fitting recess, and further immersed in an electrolytic cell to form the edge. By heating and expanding the part protection body and the fastening tool, the fastening tool is attached to the fitting recess of the edge protection body, so that the fastening tool formed to be equal to or smaller than the size of the fitting recess, A fastener can be easily inserted into the fitting recess,
Moreover, by heating and expanding the fitting recess and the fastener of the edge protection body in the electrolytic cell, the fastening tool can be smoothly and firmly mounted in the fitting recess of the edge protection body. Therefore, the mother plate can be reliably clamped in a state in which the mother plate is in close contact with the mounting groove, and the edge protector can be used in a healthy state for a long time.

[Brief description of the drawings]

FIG. 1 is a side view showing an example of an edge protection body for a bottom.

FIG. 2 is a side view showing an example of an edge protector for a side portion.

FIG. 3 is a front view of a mother plate to which the edge protection body of the present invention is attached.

FIG. 4 is a side view showing another example of the fastener.

FIG. 5 is a side view of an electrode for producing a seed plate.

FIG. 6 is a front view of a mother board to which a conventional edge protection body is attached.

FIG. 7 is a side view showing a conventional bottom edge protection body.

FIG. 8 is a side view showing a conventional edge protector for a side portion.

[Explanation of symbols]

 2 Base plate 20A / 20B Rod 21 One side 22A / 22B Mounting groove 23 Other side 25A / 25B Fitting recess 40/42 Tightening rod (fastening tool)

Claims (1)

(57) [Claims] 1. A mounting groove for mounting a mother plate is formed on one side of the rod along the longitudinal direction of the rod, and a fitting recess for mounting a fastener is formed on the other side of the rod. A method of attaching an edge protector to a seed plate manufacturing mother plate in which edge protectors formed along the longitudinal direction of the body are attached to both side edges or a lower edge of the mother plate, wherein the mother plate is After mounting in the mounting groove, insert the fastener formed below the size of the fitting recess into the fitting recess, and further immerse it in the electrolytic bath to heat and expand the edge protection body and the fastening tool. A method for attaching the edge protector to a motherboard for producing a seed plate, wherein a fastener is mounted in the fitting recess of the edge protector.