JPH0368798A - Electrolytical cleaning method and device for conductive wire bar - Google Patents

Abstract

PURPOSE:To miniaturize a device and to enhance cleaning efficiency so as to obviate the sparking in a power feed system by disposing a pair of electrodes to face a traveling conductive bar via an electrolyte and forming a closed loop, thereby effecting electrolysis. CONSTITUTION:The conductive bar 5 is fed in an electrolytic cell 2. A pair of the electrodes 6, 6..., 7, 7... are disposed in the electrolytic cell 2 by slightly opening the spacing therebetween so as to pinch the conductive bar 5. The positive electrode of a DC power source 8 is connected to the electrodes 6, 6... and the negative electrode to the electrodes 7, 7.... The electrolytic effect is executed by the closed loop consisting of a power source 8 - the positive electrode 6 - the electrolyte 3 - the conductive bar 5 - the negative electrode 7 - the power source 8, by which the conductive bar 5 is sufficiently cleaned. The spacings between the respective electrodes 6, 6..., 7, 7... and the conductive bar 5 are contactless and the sparking is obviated.

Description

DETAILED DESCRIPTION OF THE INVENTION The method and apparatus for electrolytic cleaning of conductive strips according to the present invention will be explained in detail according to the following items.

A. Industrial field of application B1 Overview of the invention C1 Prior art [Figures 7 and 8] D1 Problem to be solved by the invention [Figures 7 and 8] E. Means for solving problem 1 F. Example [Figs. 1 to 6] F-1. First example [Fig. , Fig. 4] a, Structure 9 Effect F-3, Third Embodiment [Fig. 5, Fig. 6] a, Structure 3 Effect G0 Effect of the invention (A, Industrial application field) The present invention relates to a novel method and apparatus for electrolytic cleaning of conductive strips. Specifically, the present invention aims to provide a novel method and device for electrolytic cleaning of conductive strips, which can be made compact, has high cleaning ability, and does not generate sparks in the power supply path.

(B. Summary of the Invention) The method and apparatus for electrolytic cleaning of a conductive strip according to the present invention includes a pair of electrodes facing each other via an electrolyte on a traveling conductive strip, a power supply, one electrode, an electrolyte, and a conductive strip. Since the surface of the conductive strip is cleaned by the electrolytic action formed by forming a closed loop of the conductive strip, the electrolyte, and the electrode on the other side and the power source, the device can be made compact, and the cleaning ability is high. No sparks occur in the power supply system.

(C, Prior Art) [FIGS. 7 and 8] A method and apparatus for electrolytic cleaning of a conductive strip using electrolytic action, particularly for degreasing, are known.

FIGS. 7 and 8 show an example of a conventional electrolytic cleaning apparatus for such a conductive strip.

A is an electrolytic cell in which an electrolytic solution is stored.

C is a conductive strip that enters the electrolytic cell a through one of the insertion holes d and d formed in both walls of the electrolytic cell a, and exits the electrolytic cell a from the other.

Reference characters e, e, . . . are electrodes arranged to sandwich the conductive strip C in the electrolytic cell a, and are connected to the positive electrode of the DC power source f.

6%g1... is a power supply roll, which is in contact with the conductive strip C outside the electrolytic cell a, and is connected to the negative electrode of the power source f.

Thus, the conductive strip C runs through the above-mentioned system, and electrolytic action is performed by forming a closed loop of power supply f, electrode e, electrolyte, conductive strip C, power supply roll g, and power supply f. , thereby cleaning the surface of the conductive strip C.

(D. Problem to be Solved by the Invention) [Figures 7 and 8] By the way, in the above-described conventional electrolytic cleaning method and apparatus for conductive strips, the conductive strips are removed outside the electrolytic cell a. Since the power supply rolls g, g, . In addition, since the electrolytic action can only be performed with the conductive strip C as the negative electrode, sufficient cleaning is not possible, and furthermore, at which contact point between the conductive strip C and the power supply rolls g, g, sparks are generated. There are problems such as the occurrence of

(E. Means for Solving the Problems) In order to solve the above-mentioned problems, the method and apparatus for electrolytic cleaning of conductive strips of the present invention attaches a pair of electrodes to the traveling conductive strips via an electrolyte. The surface of the conductive strip is cleaned by electrolytic action by facing each other and forming a closed loop of power source - one electrode - electrolyte - conductive strip - electrolyte - the other electrode - power supply. .

Therefore, according to the method and apparatus for electrolytic cleaning of conductive strips of the present invention, there is no need to provide a member for supplying power to the conductive strips, such as a power supply roll, outside the electrolytic cell, so the device can be made smaller. In addition, there is no generation of sparks, and since not only the electrolytic action using the conductive strip as the negative electrode but also the electrolytic action using the conductive strip as the positive electrode is performed, it has the advantage of high cleaning ability.

(F. Example) [Figures 1 to 6] Details of the method and apparatus for electrolytic cleaning of a conductive strip according to the present invention will be described below according to the illustrated examples.

(F-1, First Embodiment) [Figures 1 and 2] Figures 1 and 2 show the first embodiment 1 of the electrolytic cleaning apparatus for conductive strips of the present invention. .

(a, Structure) Reference numeral 2 denotes an electrolytic cell, in which an electrolytic solution 3 of, for example, a soda carbonate type is accommodated.

Insertion holes 4 are provided in the front and rear end walls 2a and 2b of the electrolytic cell 2, respectively.
a, 4b are formed, and liquid leakage is prevented from these through holes 4a, 4b by a sealing means (not shown).

Reference numeral 5 denotes a conductive strip, such as a material to be plated that is subjected to a continuous plating process after cleaning. The conductive strip 5 is inserted through the front insertion hole 4a by a retraction mechanism (not shown), and electrolysis 4'! 2, is inserted through the rear insertion hole 4b, and electrolysis 4'! It is sent to exit from 2.

6.6, . . . and 7.7, .
7.7, . . . are arranged so as to sandwich the conductive strip 5 from both sides with a phase spacing at a position closer to a, and 7.7, . It is arranged so that it can be opened and sandwiched between the two.

8 is a DC power source, the positive electrode of which is connected to the electrodes 6.6, . . . and the negative electrode of which is connected to the electrodes 7.7, .

(b, Action) Therefore, while the conductive strip 5 is being transported in the electrolytic cell 2, the same part of the conductive strip 5 undergoes an electrolytic action in which it acts as a negative electrode between itself and the electrodes 6, 6, . . . is carried out, and an electrolytic action is carried out with the power supply 7, 7, . . . using itself as a positive electrode, thereby achieving sufficient cleaning.

Moreover, since there is no contact between each power source 6.6, . . .\7.7, .

(F-2, Second Embodiment) [Figures 3 and 4] Figures 3 and 4 show the second embodiment IA of the method and apparatus for electrolytic cleaning of conductive strips of the present invention. It is.

(a, Structure) Reference numeral 9.10 denotes electrolytic cells, which are arranged one after the other on the regression path of the conductive strips 5, and the electrolytic solution 3 is accommodated therein.

Insertion holes 11 are provided in the front and back end walls of each electrolytic cell 9 and 10, respectively.
．． 11, . . . are formed, and the conductive strip 5 is inserted through these insertion holes 11.11, .
10 are sent sequentially.

12.12, . . . are electrodes arranged to sandwich the conductive strip 5 from both sides with a phase interval in the electrolytic PI 3, and 13.13, . . . are the conductive strips in the electrolytic cell 10. The electrodes 12, 12, . . . are the positive electrodes of the DC power source 8, and the electrodes 13, 13, . . . are the negative electrodes of the power source 8. and,
each connected.

(b. Effect) Even in this electrolytic cleaning device IA for conductive strips, the same portion of the conductive strips 5 serves as a negative electrode while passing through the electrolytic bath 9. Cleaned by electrolytic action,
Next, while passing through electrolysis #110, it is cleaned by electrolytic action using the conductive strip 5 as a positive electrode.

(F-3, Third Embodiment) [Figures 5 and 6] Figures 5 and 6 show the third embodiment IB of the electrolytic cleaning apparatus for conductive strips of the present invention. .

(a, Structure) Reference numeral 14.15 denotes a tank body, and these tank bodies 14.15 are arranged in front and back, and have openings 14a on mutually opposing end surfaces.
f5aLz space 14b115b, and opening 1
Insertion holes 14c and 15c are formed in the end surface opposite to the end surface where the holes 4a and 15a are formed.

Reference numeral 16 denotes an insulating block made of an insulating material, and a passage 17 passing through this block in the front and rear directions and an electrolyte injection nozzle 18, 18 communicating with the passage 17 are provided.

The tank body 1 is provided on both front and rear end surfaces of the insulating block 16.
4.15 are connected separately, and the space 14b, the passage 17, and the space 15b are connected in series to form the electrolysis [19].

20.20, . . . are electrodes arranged on both upper and lower surfaces of the space 14b of the tank body 14, 21.21, . . . are electrodes arranged on both upper and lower surfaces of the space 15b of the tank body 15,
．． 20,... becomes the positive electrode, and the electrodes 8i21.21,...
The DC power supply 8 is connected so that the negative electrode is the negative electrode.

Then, the conductive strip 5 enters the electrolytic cell 19 through the insertion hole 14c of the tank body 14, and exits from the electrolysis pH9 through the insertion hole 15c of the tank body 15.

(b. Effect) Therefore, the conductive strip 5 is electrolyzed P! 19,
Electrolyte 3 is fed into electrolytic cell 19 from injection nozzle 18.18.

The conductive strips 5 are cleaned in the tank body 14 by electrolytic action with the conductive strips 5 as a negative electrode, and in the tank body 15 by electrolytic action with the conductive strips 5 as a positive electrode. become.

(G. Effects of the Invention) As is clear from the above description, the method and apparatus for electrolytic cleaning of a conductive strip according to the present invention includes a pair of electrodes facing each other through an electrolytic solution on a traveling conductive strip, The surface of the conductive strip is cleaned by electrolysis by forming a closed loop of power source, one electrode, electrolyte, conductive strip, electrolyte, the other electrode, and power source.

Therefore, according to the method and apparatus for electrolytic cleaning of conductive strips of the present invention, there is no need to provide a member for supplying power to the conductive strips, such as a power supply roll, outside the electrolytic cell, so the device can be made smaller. In addition, there is no generation of sparks, and since not only the electrolytic action using the conductive strip as the negative electrode but also the electrolytic action using the conductive strip as the positive electrode is performed, it has the advantage of high cleaning ability.

[Brief explanation of drawings]

1 and 2 show a first embodiment of the electrolytic cleaning apparatus for conductive strips according to the present invention, and FIG. 1 is a schematic perspective view, and FIG.
The figure is a schematic plan view, and Figures 3 and 4 show a second embodiment of the apparatus for electrolytic cleaning of conductive strips according to the present invention. Figure 3 is a schematic perspective view, and Figure 4 is a schematic plan view. , FIG. 5 and FIG. 6 show a third embodiment of the electrolytic cleaning apparatus for conductive strips according to the present invention, in which FIG. 5 is a schematic perspective view, FIG. 6 is a schematic vertical sectional view, and FIG.
7 and 8 show an example of a conventional electrolytic cleaning apparatus for conductive stripes, with FIG. 7 being a schematic perspective view and FIG. 8 being a schematic plan view. Explanation of symbols 1... Electrolytic cleaning device for conductive strips, 2... Electrolytic bath, 3... Electrolyte, 5... Conductive strips, 6... Positive electrode, 7...
・ I A ・ ・ 9 ・ ・ ・ 12 ・ ・ I B ・ ・ 14 ・ ・ 14 b. 15b ・ 17 ・ ・ 19 ・ ・ 21 ・ ・ Negative electrode, 8... Power supply, - Electrolytic cleaning device for conductive strips, electrolytic cell, 10... Electrolytic cell, - Positive electrode, 13... Negative electrode , - Electrolytic cleaning device for conductive strips, - Tank body, 15... Tank body 1 1. Internal space, ...Internal space, 16...Insulating part, - Passage of the insulating part, - Electrolytic cell, 20... Positive electrode, - Negative electrode ('I rOLnco l+-cQ' (Oe%I (I) P+l'Q Ll+1- 〇-voice r False "IIf"'-rOLn cD v-%- Weight (04 Figure 7 Exploration plan view (conventional example) Figure 8

Claims (1)

[Claims] (1) A conductive strip is run through an electrolytic cell containing an electrolytic solution, and a pair of positive and negative electrodes are placed opposite the conductive strip with the electrolyte in between, and the power source - positive electrode - electrolytic solution is formed. - A method for electrolytic cleaning of a conductive strip, characterized in that the surface of the conductive strip is cleaned by performing an electrolytic action in a closed loop consisting of the conductive strip, the negative electrode, and the power source (2) An electrolytic solution is contained. an electrolytic cell, a pair of positive and negative electrodes disposed in the electrolytic cell, a power source that supplies current to the pair of electrodes, and an electrolytic cell that faces the electrodes and the electrolytic solution in the electrolytic cell. Electrolytic cleaning device for a conductive strip characterized by comprising a running conductive strip (3) A first electrolytic cell containing an electrolyte and provided with a positive electrode; a second electrolytic cell that is housed and provided with a negative electrode; a power supply that supplies current to the electrode; (4) An electrolytic cleaning device for a conductive strip, characterized in that the two bath bodies are connected via an insulating part, and a passage provided in the insulating part is used to clean the conductive strip. The internal spaces of the two tank bodies are communicated to form an electrolytic cell, an electrolytic solution is housed in the electrolytic cell, an electrode is arranged in each tank body, and the electrode in one tank body is used as a positive electrode, and the other A power supply is connected so that the electrode in the tank body serves as a negative electrode, and a conductive strip is fed through the electrolytic tank with an electrolyte interposed between each electrode. Electrolytic cleaning equipment for conductive strips