JPH09279399A - Divided insoluble electrode for electroplating - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a divided insoluble electrode for electroplating with which the secure mounting of electrode short pieces to an electrode base body is possible without using screws, etc., and the mounting and dismounting of the electrode short pieces are easy. SOLUTION: This divided insoluble electrode 10 for electroplating is formed by mounting the plural electrode short pieces 12 to the electrode base body 11. Both sides of the electrode short pieces 12 are provided with slopes 14, 15. Air tubes 13 which are fixed at the base ends to the electrode base body 11 and pressure the slopes 14, 15 of the electrode short pieces 12 to the electrode base body 11 side and partly projected from the surfaces of the electrode short pieces 12 are disposed at the intermediate of the adjacent electrode short pieces 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a split type insoluble electrode for electroplating used in a steel strip electroplating apparatus or the like.

[0002]

2. Description of the Related Art For example, a split type insoluble electrode for electroplating disclosed in Japanese Patent Publication No. 7-30690 has been proposed, and a split type insoluble electrode for electroplating 7 having the same structure as that of the split type insoluble electrode 7 is proposed.
0 is shown in FIGS. As shown in the figure, the electrode short piece 72 made of titanium was fixed to the surface of the electrode base body 71 made of titanium using the machine screw 73 made of titanium. Then, the insulator 74 is arranged in the middle of the electrode short piece 72 so as to project from the electrode short piece 72 by about 2 mm to prevent the insulator 74 from coming into contact with the electrode short piece 72 due to the flapping of the passing steel strip. Reference numeral 75 is a mounting screw arranged on the back surface side.

[0003]

However, the conventional split type insoluble electrode 70 for electroplating has the following problems. The machine screw 73 for attaching the electrode short piece 72 may be loosened, and when the machine screw 73 is loosened in the split type insoluble electrode 70 for electroplating arranged on the upper part of the steel strip, the machine screw 7
3. There is a risk that the electrode short piece 72 and the insulator 74 may fall off. Since the plurality of electrode short pieces 72 and the insulator 74 are attached to the electrode base body 71 by using many small screws 73, the work of attaching and replacing the electrode short pieces 72 and the insulator 74 is extremely troublesome. The present invention has been made in view of the above circumstances, and a split type insoluble electrode for electroplating that can firmly attach an electrode short piece to an electrode base without using a screw or the like and that is easy to attach and detach the electrode short piece. The purpose is to provide.

[0004]

According to the present invention, there is provided a semiconductor device comprising:
The split-type insoluble electrode for electroplating described is a split-type insoluble electrode for electroplating in which a plurality of electrode short pieces are attached to an electrode substrate, and the adjacent electrode short pieces are provided with inclined surfaces on both sides of the electrode short pieces. An air tube is provided in the middle of which the base end portion is fixed to the electrode base body, and when inflated, the inclined surface of the electrode short piece is pressed toward the electrode base body side, and a part of which protrudes from the surface of the electrode short piece. There is. The split type insoluble electrode for electroplating according to claim 2 is the split type insoluble electrode for electroplating according to claim 1, wherein the air tube is provided with a mounting flange at a base end portion,
The section of the portion that presses the inclined surface has an inverted trapezoidal shape. The split-type insoluble electrode for electroplating according to claim 3 is the split-type insoluble electrode for electroplating according to claim 1, wherein the air tube maintains an inverted trapezoidal shape even when the internal air becomes atmospheric pressure. Made of possible rubber material.

In the split type insoluble electrode for electroplating according to claims 1 to 3, when the air tube is expanded, the inclined surface of the electrode short piece is pressed to fix the electrode short piece to the electrode base. Then, since the air tube swells, it protrudes from the surface of the electrode short piece and plays a role of an insulator. When the short electrode piece is removed, the short air electrode can be compressed to remove the short electrode piece.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Next, referring to the attached drawings, an embodiment in which the present invention is embodied will be described to provide an understanding of the present invention. Here, FIG. 1 is an explanatory view of a split type insoluble electrode for electroplating according to an embodiment of the present invention, and FIG.
3 is an explanatory view of the same operation, and FIG. 3 is a partial sectional view of a split type insoluble electrode for electroplating according to another embodiment.

As shown in FIG. 1, a split type insoluble electrode 10 for electroplating according to an embodiment of the present invention comprises an electrode base 11 made of titanium, and an electrode short piece 12 arranged on the electrode base 11. , And an air tube 13 to which this is attached. These will be described in detail below.

The electrode short piece 12 is made of a titanium plate as in the conventional case, and inclined surfaces 14 and 15 having an inclination angle θ of 10 to 45 degrees are provided on both sides to narrow the surface side, that is, the discharge surface side. . On the back surface side of the electrode short piece 12, a protruding electrode portion 16 that facilitates electrical contact with the electrode base body 11 is provided. On the surface side of the electrode base body 11, there is provided an electrode mounting portion 17 into which the electrode short piece 12 is fitted with a certain gap, and a fitting groove 18 into which the protruding electrode portion 16 of each electrode short piece 12 is fitted and abutted. I have it. Here, the height of the protruding electrode portion 16 is higher than the depth of the fitting groove 18, so that the short electrode piece 12 electrically and reliably contacts the electrode base body 11.

The air tube 13 is shown in FIG.
As shown in (B), a mounting flange 19 is provided on the base end side, and a dovetail groove 20 into which the mounting flange 19 is fitted is also provided on the electrode base 11 side. This mounting flange 19
The pressing portion 21 connected to is an inverted trapezoid and has a cavity 22 inside, and an air inlet (not shown) for filling the cavity 22 with high pressure air is provided. The cross-sectional size of the air tube 13 is such that, when compressed air is put into the air tube 13 to expand it, it projects from the surface of the electrode short piece 12 by 2 to 5 mm. Further, the material is made of artificial or natural rubber or flexible plastic so that the pressing portion 21 maintains the inverted trapezoidal shape even when the air inside is evacuated.

Therefore, in the split type insoluble electrode 10 for electroplating, when the electrode short piece 12 is attached,
The air in the air tube 13 is evacuated, the electrode short piece 12 is attached to the electrode base 11, and then the air tube 13 is filled with air. Since the pressing portion 21 of the air tube 13 that is filled with air presses the inclined surfaces 14 and 15 of the electrode short piece 12, the electrode short piece 12 does not come off. The positioning of the short electrode piece 12 is performed by the protruding electrode portion 16 and the fitting groove 18. When the air tube 13 is filled with air, as shown in FIG.
As shown in Fig. 3, it swells upward by several mm, which means that it acts as an insulator.
Prevents direct contact with.

FIG. 3 shows a split type insoluble electrode for electroplating according to another embodiment. As shown in the figure, one side of the electrode short piece 12 is supported by an insulator 23 made of hard plastic, ceramics or the like. The other is supported by the air tube 13 described above. The insulator 23 has a flange 24 on the base end side, and a portion contacting the electrode short piece 12 has an inverted trapezoidal shape. Therefore, when removing the electrode short piece 12, it is possible to remove the air from the air tube 13 to some extent, so that the electrode short piece 12 can be removed. When inserting the electrode short piece 12, the same reverse procedure should be performed. You can

[0012]

As is apparent from the above description, the split type insoluble electrode for electroplating according to claims 1 to 3 has the electrode short piece fixed by the air tube. Significantly reduced. Further, like the conventional split type insoluble electrode for electroplating, it is possible to prevent a failure of the plating apparatus caused by loosening of screws, forgetting to fasten screws, or the like. Further, since the air tube plays both a role of fixing the electrode short piece and an insulator, there is an advantage that the number of parts is smaller than that of the conventional split type insoluble electrode for electroplating. Particularly, in the split type insoluble electrode for electroplating according to claim 2, since the air tube is fixed through the mounting flange, the air tube can be prevented from falling off, and the pressing portion of the air tube has an inverted trapezoidal shape. Therefore, the inclined surface of the electrode short piece can be efficiently pressed.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a split type insoluble electrode for electroplating according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram of the same operation.

FIG. 3 is a partial cross-sectional view of a split type insoluble electrode for electroplating according to another embodiment.

FIG. 4 is a plan view of a split type insoluble electrode for electroplating according to a conventional example.

FIG. 5 is a partial sectional view of the same.

[Explanation of symbols]

10 split type insoluble electrode for electroplating 11 electrode substrate 12 electrode short piece 13 air tube 14 inclined surface 15 inclined surface 16 protruding electrode portion 17 electrode mounting portion 18 fitting groove 19 mounting flange 20 dovetail groove 21 cavity 23 insulator 24 flange

Claims (3)

[Claims] 1. A split type insoluble electrode for electroplating, wherein a plurality of electrode short pieces are attached to an electrode substrate, wherein inclined surfaces are provided on both sides of the electrode short pieces, and a base end is provided between the adjacent electrode short pieces. The portion is fixed to the electrode base body, and when expanded, the inclined surface of the electrode short piece is pressed toward the electrode base body side, and an air tube is provided, a part of which protrudes from the surface of the electrode short piece. Split type insoluble electrode for plating. 2. The split type insoluble electrode for electroplating according to claim 1, wherein the air tube has a mounting flange at a base end, and a cross section of a portion pressing the inclined surface has an inverted trapezoidal shape. 3. The split type insoluble electrode for electroplating according to claim 2, wherein the air tube is made of a rubber material capable of maintaining an inverted trapezoidal shape even when the internal air has an atmospheric pressure.