JPH07102397A - Anodic electrode exchanging device for electroplating device - Google Patents

Abstract

PURPOSE:To facilitate the exchange of an anodic electrode and to improve the productivity. CONSTITUTION:An opening cover 26 is removed to open the opening part 21a of a plating bath 21, the eye plate 34 of a truck 31 and the eye plate 9 of an outlet side ass'y 10 are connected, the outlet side ass'y 10 is moved onto the truck 31 via rollers 24 by a hydraulic cylinder 33, the exchange of the outlet side ass'y 10 is easily executed as the upper member of the plating bath 21 is mounted, and the exchange of an anodic electrode is made easy to improve the productivity.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for replacing an anode electrode in a plating bath liquid jet continuous plating device for a metal strip.

[0002]

2. Description of the Related Art An example of a conventional continuous electrolytic plating apparatus for strip steel will be described with reference to FIGS. FIG. 4 is a vertical cross section showing the concept of the conventional continuous plating apparatus, FIG. 5 is an enlarged view of the soluble anode in FIG. 4, and FIG. 6 is VI-VI in FIG.
A line-arrow view is shown. The soluble anode refers to one in which the anode is electrolyzed and dissolved in the plating bath solution by energizing an electric circuit for plating.

As shown in FIG. 4, the plating tank 52 is provided with a pair of conductor rolls 54, brush rolls 60 and deflector rolls 55, and the deflector rolls 55 are arranged in a plating bath solution 53. The strip steel 51 is guided by the conductor roll 54 and the deflector roll 55 and passes through the plating bath solution 53 in the plating tank 52. A pair of soluble anodes 56 facing each other on both sides of the strip steel 51 are provided on the inlet side and the outlet side of the deflector roll 55, respectively, and the metal dissolved in the plating bath solution 53 from the soluble anode 56 causes the metal in the plating bath solution 53 to pass through. The strip steel 51 passing through is plated.
Since the soluble anode 56 is consumed according to the amount of electricity supplied, it is replaced with a new one when the consumption becomes remarkable.

As shown in FIGS. 5 and 6, the soluble anode 56
Is a metal plate having a predetermined height and having a width substantially the same as the width of the steel strip 51. The upper end of the soluble anode 56 is formed in a hook shape and is suspended by a bus bar 57 fixed to a bridge 58. Further, the lower end of the soluble anode 56 is inserted into a guide 59 fixedly installed in the plating bath 52.

When the soluble anode 56 is replaced, the plating bath 5
2 of the upper cover 52a and the conductor roll 54, the brush roll 60, and other upper members are removed, and the bridge 58 is suspended by a crane or the like to guide the lower end of the soluble anode 56 to the guide 5
9 and the anode electrode assembly 50 including the soluble anode 56, the bus bar 57 and the bridge 58 is taken out of the plating bath 52. After taking out the anode electrode assembly 50, the anode electrode assemblies 50 each having a new soluble anode 56 mounted therein are mounted in the plating bath 52 one by one, and upper members such as the upper cover 52a, the conductor roll 54 and the brush roll 60 are mounted.

[0006]

When replacing the above-mentioned anode electrode assembly 50, since the upper member of the plating tank 52 is removed, a great deal of time and labor is required for its attachment / detachment, and downtime of the continuous plating line is reduced. Will be increased. Therefore, the productivity of the plating work is reduced. Further, when the disassembled conductor roll 54 and brush roll 60 are restored, the roll core adjustment steel strip 51, etc.
This work was not easy because it required attention and consideration to prevent meandering.

In particular, in the case of a continuous electrolytic plating apparatus operated under special plating conditions such as the use of molten salt as a plating bath liquid (generation of high temperature harmful gas, need to shut off from the atmosphere, etc.), the upper cover 52a is provided. Opening had problems in terms of workability, safety, influence on plating conditions, and the like.

[0008]

The structure of the present invention for solving the above-mentioned problems is to provide an anode electrode facing a metal strip running vertically in a plating tank, and to provide an anode electrode in a plating bath solution. In the electroplating apparatus for energizing the metal strip with the metal strip as the cathode and for plating the component of the electrolysis-soluble metal on the metal strip as the cathode, the opening covered with the opening cover is provided in the plating tank in one of the widthwise directions of the metal strip. Outside tank moving means provided on the side part and provided with inside tank moving means for movably supporting the anode electrode horizontally in the plating tank and connected to the anode electrode side and moving the anode electrode from the opening to the outside of the plating tank Is provided.

[0009]

[Function] When replacing the anode electrode, the opening cover is removed to open the opening of the plating tank, the inside-bath moving means and the outside-bath moving means are connected, and the anode electrode is moved from the opening to the outside-bath moving means. Pull it out and transport it to the designated place. A new anode electrode is conveyed to the outside-bath moving means, and a new anode electrode is drawn into the inside-bath moving means in the reverse order of the above procedure and loaded into a predetermined position of the plating tank.

[0010]

EXAMPLE FIG. 1 is a vertical cross-sectional view in which a central portion in the width direction of a strip steel of a plating bath jet type continuous plating apparatus equipped with an anode electrode exchanging device according to an embodiment of the present invention is broken. II-II
The operation is shown in FIG.

As shown in FIGS. 1 and 2, the plating tank 21 is provided with a pair of conductor rolls 28, a brush roll 28a and a deflector roll 29, and a steel strip 40 as a metal strip material is a conductor roll 28 and a brush roll. 28a
And it is guided by the deflector roll 29 and passes through the plating tank 21. One side in the width direction of the steel strip 40 (left side in FIG. 2)
An opening 21 a is formed in the plating tank 21 in the above, and the opening 21 a is covered with an opening cover 26. An inlet side basket anode electrode assembly (inlet side assembly) 20 and an outlet side basket anode electrode assembly (outlet side assembly) 1 are provided on the inlet side and the outlet side of the deflector roll 29.
1 is provided. The inlet side assembly 20 and the outlet side assembly 10 are supported in the plating tank 21 by rollers 24 rotatably attached to the beams 22 and 23.

A pair of basket anode electrodes (anode electrodes) 1 are incorporated in the electrode box 3 of the outlet side assembly 10, and the anode electrodes 1 face both sides of the steel strip 40, respectively. A large number of elution holes are formed on the surface of the anode electrode 1 facing the steel strip 40, and the soluble metal pellets 2 are formed on the anode electrode 1.
Is filled. A bus bar 4 is erected on the electrode box 3 via an insulating plate 5, and the bus bar 4 is connected to the anode electrode 1 via a conduction band 6. The end portion (right side in FIG. 2) of the bus bar 4 penetrates the plating tank 21, and the penetration portion of the bus bar 4 is fastened to the side surface of the plating tank 21 via the insulating plate 25. A jet nozzle 7 for jetting the plating bath solution 42 is fixedly installed in the electrode box 3 above the electrode box 3, and an end portion (left side in FIG. 2) of the jet nozzle 7 penetrates the opening cover 26. A half-split ring-shaped mounting plate 27 is provided in the penetrating portion of the opening cover 26, and the end of the jet nozzle 7 is fastened to the mounting plate 27 via the flange 8. An eye plate 9 is fixedly provided on the side surface of the electrode box 3.

Below the electrode box 3 of the inlet side assembly 20, a jet nozzle 7 for injecting a plating bath solution 42 into the electrode box 3 is provided.
Is provided. The inlet side assembly 20 is similar to the outlet side assembly 10 in that the anode electrode 1, the pellet 2, the electrode box 3, the bus bar 4, the insulating plate 5, the conduction band 6, the jet nozzle 7,
The inlet side assembly 20 is constituted by the flange 8 and the eye plate 9, and is supported in the plating tank 21 via the beams 22 and 23 and the roller 24. Further, a pellet supply device 30 is provided above the inlet side assembly 20 and the outlet side assembly 10.

As shown in FIG. 2, a girder 35 is provided on the side of the opening 21a of the plating tank 21, and a rail 36 extending in the width direction of the steel strip 40 is laid on the girder 35. The carriage 36 is movably supported on the rails 36, and the upper surface of the carriage 31 is provided with two rows of rollers 32 for exit and entrance.
Is rotatably attached. The carriage 31 is provided with a hydraulic cylinder 33, and an eye plate 34 is attached to the tip of the rod portion of the hydraulic cylinder 33. The eye plate 34 can be connected to the eye plate 9 of the electrode box 3. That is, the girder 35, the rail 36, the carriage 31, the rollers 32,
The hydraulic cylinder 33 and the eye plate 34 constitute a tank outside movement means. Further, the above-described beams 22, 23 of the plating tank 21, the roller 24, and the eye plate 9 constitute an in-tank moving means.

Each anode electrode 1 of the output side assembly 10 and the input side assembly 20 from the bus bar 4 through the conduction band 6
The plating bath solution 42 is jetted from the jet nozzle 7 to flow the plating bath solution 42 into the electrode box 3. The plating bath liquid 42 is electrolyzed by the flow of the plating bath liquid 42
Then, the conductor roll 28 energizes the strip steel 40 as a cathode. Conductor roll 2 with strip steel 40
8, the brush roll 28a and the deflector roll 27 are guided to pass between the anode electrodes 1, and the steel strip 40 is plated with the metal component of the pellets 2. When the pellet 2 is exhausted, the pellet 2 is replenished from the pellet supply device 30.

When the outlet side assembly 10 and the inlet side assembly 20 are replaced for maintenance, as shown in FIG. 3, the fastening of the bus bar 4 to the plating tank 21 is released and the mounting plate 27 and the opening cover 26 are removed. Then, the end of the carriage 31 is inserted into the plating tank 21 through the opening 21a to bring the roller 32 and the roller 24 in the plating tank 21 closer to a drawable distance. Eye plate 9 and hydraulic cylinder 3 of the outlet side assembly 10 and the inlet side assembly 20.
The eye plate 34 of 3 is connected by a pin 135,
The output side assembly 10 is driven by driving the hydraulic cylinder 33.
And, the inlet side assembly 20 is pulled out onto the roller 32 of the carriage 31 (shown by a two-dot chain line in the figure). Rail 3 in this state
The dolly 31 is moved along 6 (shown by a chain double-dashed line in the figure), the pin 135 is removed, and the dolly is conveyed to the maintenance site by a crane (not shown). Then, the maintenance of the outlet side assembly 10 and the inlet side assembly 20 are placed on the carriage 31 and inserted into the plating tank 21 in the reverse order of the above.

Therefore, the anode electrode 1 can be exchanged with the upper member of the plating tank 21 attached, and the opening 21a has the smallest area through which the outlet assembly 10 and the inlet assembly 20 can pass. Plating tank 21
Outflow of gas inside can be reduced.

In the above embodiment, the rollers 24 are axially attached to the beams 22 and 23, but the rollers 24 may be axially attached to the electrode box 3 and rails may be laid on the beams 22 and 23. It is also possible to configure a slide-type in-tank moving means and outside-tank moving means without using the carriage 31 and the rollers 24 and 32.

[0019]

In the anode electrode exchanging device of the present invention, the opening cover is removed to open the opening of the plating tank, and the moving means inside the tank and the moving means outside the tank are connected to each other to move inside the tank and outside the tank. By pulling out and loading the anode electrode from the opening by the moving means, the anode electrode can be easily replaced with the upper member of the plating tank still mounted. Therefore, the anode electrode can be easily replaced, the downtime of the line can be significantly reduced, and the productivity can be improved. Further, since the opening having the smallest area through which the anode electrode can pass is provided only on the side surface of the plating tank, the gas outflow in the plating tank can be reduced as compared with the case where the upper portion is opened.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a plating bath liquid jet continuous plating apparatus equipped with an anode electrode exchanging device according to an embodiment of the present invention.

FIG. 2 is a view taken along the line II-II in FIG.

FIG. 3 is an operation explanatory view of the anode electrode exchange device.

FIG. 4 is a vertical sectional view showing the concept of a conventional continuous plating apparatus.

5 is an enlarged view of the soluble anode in FIG.

6 is a view taken along the line VI-VI in FIG.

[Explanation of symbols]

1 Anode Electrode (Basket Anode Electrode) 2 Pellet 3 Electrode Box 4 Bus Bar 7 Jet Nozzle 9 Eye Plate 10 Outlet Assembly (Outgoing Basket Anode Electrode Assembly) 20 Inlet Assembly (Inlet Basket Anode Electrode Assembly) 21 Plating Tank 21a Opening Part 22, 23 Beam 24, 32 Roller 26 Opening cover 31 Carriage 33 Hydraulic cylinder 34 Eye plate 40 Strip steel

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Kenichi Unoki Kenichi Unoki 4-6-22 Kannon Shinmachi, Nishi-ku, Hiroshima City, Hiroshima Prefecture Mitsubishi Heavy Industries, Ltd. Hiroshima Plant (72) Inventor Yoshikiyo Tojo, Chuo-ku, Osaka Prefecture 4-5-3 Kitahama Sumitomo Metal Industries, Ltd. (72) Inventor Yasuhiro Yamamoto 4-53-3 Kitahama, Chuo-ku, Osaka-shi, Osaka Prefecture Sumitomo Metal Industries, Ltd. (72) Hirohisa Seto Osaka-shi, Osaka Prefecture 4-53-3 Kitahama, Chuo-ku, Sumitomo Metal Industries, Ltd. (72) Inventor Junichi Uchida 4-53-3, Kitahama, Kitahama, Chuo-ku, Osaka City, Osaka Prefecture Sumitomo Metal Industries, Ltd.

Claims (1)

[Claims] 1. A metal strip which is provided with an anode electrode facing a metal strip running vertically in a plating tank, energizes the anode electrode in a plating bath solution, and uses the metal strip as a cathode, thereby forming a cathode. In an electroplating device for plating components of electrolysis-soluble metal, an opening covered with an opening cover is provided at one side of the plating tank in the width direction of the metal strip, and the anode electrode can be moved horizontally in the plating tank. An anode electrode exchanging device for an electrolytic plating apparatus, characterized in that it is provided with an in-vessel moving means for supporting the anode electrode, and an outside-vessel moving means for moving the anode electrode from the opening to the outside of the plating tank while being connected to the anode electrode side.