JP2783056B2 - Method of attaching edge protector to motherboard for producing seed plate and fastening tool used therefor - 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 and a fastener used for the method.

[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. 6 and 7, this seed plate is used for carrying out electrolysis by storing an anode made of crude copper 1 or the like and a mother plate 2 made of stainless steel or the like as a cathode in an electrolytic cell and forming pure copper on the surface of the mother plate 2. 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 edge protection body, one having a shape as shown in FIG. 8 (for bottom) and FIG. 9 (for side) has been 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 pressed against the mother plate 2 by being pushed in from a direction orthogonal to the longitudinal direction to narrow the mounting groove 12. However, as described above, the tightening rod 14 having a diameter larger than that of the fitting recess 15 is used.
5 is forcibly pushed into the inside from an opening smaller than the inner diameter of 5, the opening of the fitting recess 15 is once expanded by the outer diameter of the tightening rod 14, so that the fitting recess 15 is expanded more than necessary. However, there is a problem that an extra force is applied to the edge protection body, which adversely affects the edge protection body.

The present invention has been made in view of the above circumstances, and an object of the present invention is to prevent an unnecessary excessive force from being applied to an edge protection body, and furthermore, to prevent the edge of the mother plate from being bent. An object of the present invention is to provide a method of attaching an edge protector to a motherboard for producing a seed plate, which can smoothly and surely attach the partial protector, and a fastener used therefor.

[0005]

In order to achieve the above object, according to the mounting method of the present invention, a mounting groove for mounting a mother plate on one side surface of a rod is formed along a longitudinal direction of the rod.
Seed plate for attaching an edge protector formed on the other side surface of the rod-shaped body along the longitudinal direction of the rod-shaped arc-shaped fitting recess for mounting a fastener to both side edges or a lower edge of the mother plate A method of attaching an edge protector to a manufacturing motherboard, wherein after the motherboard is mounted in the mounting groove, a rod-shaped fastener body having an outer diameter larger than the inner diameter of the fitting recess is provided. The distal end is provided with a tapered tapered portion whose outer diameter is gradually reduced toward the distal end and whose outer diameter is smaller at the distal end than the inner diameter of the fitting recess. A fastening tool is attached to the fitting recess along the longitudinal direction from the distal end side. Further, the fastening according to claim 2
The tool has a tapered end formed at the end of a rod-shaped fastener body having an outer diameter larger than the inner diameter of the fitting recess.
Furthermore, the fastening tool according to claim 3 is a long fastening tool.
The width dimension in the direction orthogonal to the length direction of the
A narrower portion that is smaller than the width of the opening of the recess;
Larger wide section extends along the length of the fastener body
It is set so that it is displaced in the rotation direction about the axis.
It is specified . Furthermore, according to claim 4
When the fastener is provided with a support member protruding from the fastener body
Both tightening in the direction perpendicular to the direction of projection of the support member
The width dimension of the tool body is a narrow portion smaller than the opening of the fitting recess , and a wide portion larger than the inner diameter of the fitting recess ,
Rotation about the axis along the direction of projection of the support member
It is set so as to be displaced in the direction .

[0006]

According to the first aspect of the present invention, there is provided a method of attaching an edge protector to a mother board for producing a seed plate, wherein the inner diameter of the edge protector is larger than the inner diameter of the fitting recess.
At the tip of the rod-shaped fastener body with a large outer diameter,
The outer diameter is gradually reduced toward the tip side.
Outer diameter smaller than the inner diameter of the fitting recess at the forefront
With a tapered taper formed in the fastener
Into the fitting recess along the longitudinal direction from the tip side.
By inserting the fitting recess , the fitting recess is gradually expanded to a predetermined size, thereby preventing unnecessary force from being applied to the fitting recess. Further, in the fastener according to claim 2 of the present invention, by inserting a tapered portion formed at the end of the fastener body larger than the fitting recess from the end of the fitting recess,
Push the mating recess without difficulty. Further, according to the third aspect of the present invention, the narrow width portion smaller than the width of the opening of the fitting recess formed along the longitudinal direction of the long fastener body is opened. After inserting into the inside from the part, the long fastener body is rotated around its longitudinal direction, and a wider portion larger than the fitting recess is pressed against the fitting recess to form the fitting recess. Spread it out smoothly. Furthermore, according to claim 4 of the present invention, after inserting a narrow portion smaller than the width of the opening of the fitting recess formed in the fastener body from the opening of the fitting recess into the inside. By rotating the fastener body about the axis of the support member by the support member, a wide portion larger than the fitting recess is pressed against the fitting recess to smoothly spread the fitting recess.

[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. Further, as shown in FIG. 3, the fastening rod 40 having a slightly larger diameter than the fitting recesses 25A and 25B has a tapered portion 41 formed at an end thereof.

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 mounting the mother plate in a state where the sealing member 30 is adhered in the mounting grooves 22A and 22B, the tightening rod 40 is longitudinally inserted from the tapered portion 41 into the fitting recesses 25A and 25B. The mother plate is firmly clamped in each of the mounting grooves 22A and 22B by inserting along the direction, and the seal member 30 is attached to each of the mounting grooves 22A and 22B.
22B and the mother plate are securely adhered to each other, and sufficient sealing performance is ensured. In this case, since the tightening rod 40 is inserted from the tapered portion 41 into each of the fitting recesses 25A and 25B along the longitudinal direction thereof, the fastening rod 40 is smoothly mounted on each of the fitting recesses 25A and 25B. And, each fitting recess 25A, 25B is pushed and expanded without difficulty.

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
It is set slightly larger than the inner diameter of 5A. The width of the opening 28A is smaller than the inner diameter of the fitting recess 25A. In the fastening rod 42 configured as described above, as shown in FIG. 4, the circumferential surface of the fastening rod 42 is connected to the opening 28 of the fitting recess 25A.
A, the fastening rod 42 is inserted into the fitting recess 25.
A, after being inserted into the shaft A, the tightening rod 42 is rotated by a predetermined angle around the axis of the tightening rod 42.
Are securely mounted in the fitting recesses 25A, and the fitting recesses 25A are smoothly pushed out by a force within an appropriate range, so that the mother plate is firmly fixed in the mounting groove 22A. In addition,
An elliptical shape may be used instead of the cross-sectional shape shown in FIG. Further, FIG. 5 shows that a pair of flat surfaces 47 parallel to each other is formed on a sphere 46 having a diameter slightly larger than the inner diameter of the fitting recess 25A, and a support member 48 having an axis parallel to the flat surface 47 is provided. , Attached to the spherical body 46. An interval (narrow portion) 49 between the flat surfaces 47 of the sphere 46 is set smaller than the width of the opening 28A of the fitting recess 25A, and the outer diameter (wide portion) of the sphere 46 is set. 50 is set slightly larger than the inner diameter of the fitting recess 25A. The fastening tool 51 thus configured
After fitting each sphere 46 into the fitting recess 25A along the opening 28A of the fitting recess 25A with the flat surfaces 47 of the plurality of fasteners 51 facing, By rotating each support member 48 by a predetermined angle around its axis, the sphere 46 smoothly spreads the fitting recess 25A and is securely mounted in the fitting recess 25A. 4 and 5
In the above, the edge protection body for the bottom is described, but it goes without saying that the invention can be applied to the edge protection body for the side. In each of the above embodiments, the sealing member 3
Although the description has been made using a rubber elastic body such as silicon rubber as 0, the present invention is not limited to this, and the rod-shaped bodies 20A and 20B may be integrated when molded by extrusion using a synthetic resin such as soft PVC. Alternatively, a rubber material such as neoprene rubber may be adhered to the distal ends of the mounting grooves 22A and 22B.

[0011]

As described above, the production of the seed plate of the present invention is as described above.
According to the method of attaching the edge protection body to the
Insert the body into the mating recess along its length from the tapered part
By doing so, the fitting recess gradually to a predetermined size
Since it is expanded, it is possible to prevent an excessive force from being applied to the fitting recess, and it is possible to attach the edge protection body to the mother plate smoothly and reliably. Further, clamp according to claim 2, wherein also the taper formed on the end portion of the fitting recess is larger than the fastener body, by inserting the end portion of the fitting recess, proper mating recess range It can be easily pushed out by the force inside. Claims
According to 3 clamp according, elongated fastener body
After inserted into the opening of the case recess fitting the narrow section, the clamp body of the long, by rotating about its longitudinal direction and a mating recess larger wide width portion The fitting recess can be pressed against the fitting recess so that the fitting recess can be smoothly pushed out, and no excessive force is applied to the fitting recess. Insert Furthermore, according to the fastener of claim 4, wherein, a small narrow portion than the width of the opening of the fitting recess formed in Tightening tool body, the inside from the opening of the fitting recess After that, by rotating the fastener body around the axis of the support member by the support member, a wide portion larger than the fitting recess is pressed against the fitting recess, and the fitting recess is smoothly made. Can be spread out.

[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 showing an example of the fastener of the present invention.

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

FIG. 5 is a front view showing another example of the fastener of the present invention.

FIG. 6 is a side view of an electrode for producing a seed plate.

FIG. 7 is a front view of a mother board to which a conventional edge protection body is attached.

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

FIG. 9 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 28A Opening 40/42 Tightening rod (clamp body) 41 Tapered portion 44 Spacing (narrow portion) 45 Outer diameter (wide part) 46 Spherical body (fastener body) 48 Support member 49 Interval (narrow part) 50 Outer diameter (wide part) 51 Fastener

Claims (4)

(57) [Claims] 1. A mounting groove for mounting a mother plate on one side surface of a rod-shaped body is formed along a longitudinal direction of the rod-shaped body, and an arc-shaped fitting recess for mounting a fastener is formed on the other side surface of the rod-shaped body. Is a method of attaching an edge protector to a motherboard for producing a seed plate, wherein the edge protector formed along the longitudinal direction of the rod-shaped body is attached to both side edges or a lower edge of the motherboard. After the plate is mounted in the mounting groove, the outer diameter of the rod-shaped fastener body having an outer diameter larger than the inner diameter of the fitting recess is gradually reduced toward the distal end. At the foremost end, a fastener having a tapered tapered portion formed to have an outer diameter smaller than the inner diameter of the fitting recess is inserted into the fitting recess along the longitudinal direction from the distal end side. A method of attaching an edge protector to a motherboard for producing a seed plate, wherein the edge protector is attached. 2. 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 is formed on the other side of the rod in a longitudinal direction of the rod. A fastening tool that is mounted in the fitting recess and tightens the mother plate in the mounting groove when attaching the edge protector formed along with the side edges or the lower edge of the mother plate; A fastener having a bar-shaped fastener body having an outer diameter larger than the inner diameter of the recess, the taper being formed at an end of a rod-shaped fastener body. 3. A mounting groove for mounting a mother plate on one side of the rod is formed along the longitudinal direction of the rod, and a fitting recess is formed on the other side of the rod in a longitudinal direction of the rod. A fastener that is attached to the fitting recess and tightens the mother plate in the mounting groove when attaching the edge protectors formed along the side edges or the lower edge of the mother plate, and The width dimension in the direction orthogonal to the length direction of the fastener main body is such that a narrow portion smaller than the width of the opening of the fitting recess and a wide portion larger than the fitting recess are formed of the fastener body. Length direction
Will be displaced in the direction of rotation about the axis along
A fastener characterized by being set as follows . 4. A mounting groove for mounting a mother plate is formed on one side surface of the rod along the longitudinal direction of the rod, and a fitting recess is formed on the other side of the rod in a longitudinal direction of the rod. upon an edge protector made of formed along attached to both side edges or the bottom edge of the mother plate, is attached to the fitting recess a clamp clamping the mother plate of the mounting groove, the clamping
In addition to projecting a support member on the tool body,
The width dimension of the fastener body in a direction perpendicular to the exit direction is a narrow width portion smaller than the opening of the fitting recess, and the fitting recess is
The wide portion that is larger than the inner diameter of
Will be displaced in the direction of rotation about the axis along
A fastener characterized by being set as follows .