CN216514191U

CN216514191U - Device for restoring conductive performance of cathode roller for electrolytic copper foil

Info

Publication number: CN216514191U
Application number: CN202123048596.7U
Authority: CN
Inventors: 冷新宇; 何桂青
Original assignee: Tongling Huachuang New Material Co ltd
Current assignee: Anhui Huachuang New Material Co ltd
Priority date: 2021-12-07
Filing date: 2021-12-07
Publication date: 2022-05-13
Anticipated expiration: 2031-12-07

Abstract

The utility model discloses a device for repairing conductive performance of a cathode roller for electrolytic copper foil, which comprises: electrically conductive main shaft (2), cup joint bushing (1), a titanium section of thick bamboo (9) outside electrically conductive main shaft and be located end plate (5) at a titanium section of thick bamboo both ends, the rigid coupling has interior conducting ring (3) on the electrically conductive main shaft in a titanium section of thick bamboo, it has outer conducting ring (8) to correspond the rigid coupling on the titanium section of thick bamboo inner wall, interior conducting ring passes through copper bar (7) with outer conducting ring and connects, end plate inner wall rigid coupling has with interior conducting ring and outer conducting ring figure unanimous connecting plate (6), the connecting plate passes through metal connecting wire (4) and is connected with the interior conducting ring that corresponds. The utility model has the beneficial effects that the conductive quantity of the end plate of the cathode roller is enhanced by adding the metal connecting wire, so that the uniformity of the current on the surface of the cathode roller is improved, and the quality of the electrolytic copper foil is improved.

Description

Device for restoring conductive performance of cathode roller for electrolytic copper foil

Technical Field

The utility model relates to the technical field of electrolytic copper foil production equipment, in particular to a cathode roller for an electrolytic copper foil.

Background

The cathode roll is a core device in the production of the electrolytic copper foil, and plays a very important role in the production of the electrolytic copper foil. The cathode roller is a device with large volume phi 1500 xL 1400, heavy weight of 5 tons and large passing current, and has very firm structure and very high requirement on electric conductivity. In the using process, the phenomena of reduced conductivity, local heating of the roll surface, heating of the shaft end, mottling of the copper foil and the like of a part of cathode rolls are discovered, the quality of the copper foil is seriously influenced, and the maintenance is needed. Through many times of current actual measurement inspection, the highest only can reach 30kA, the serious phenomenon of generating heat appears promptly, unpack apart the cathode roll and discover that each inner circular arc department conductive copper bar connects well, the negative pole roller still appears locally generating heat after the equipment, the axle head generates heat, the phenomenon such as variegated appears in the copper foil, can not normal operating, detect conducting ring contact surface, spindle nose connection and spindle nose and end plate hookup department through further detecting a flaw, the main reason that the discovery arouses the reduction of cathode roll both sides end plate electric quantity is: the end plates on the two sides of the cathode roller are in poor contact with the conductive shaft of the cathode roller due to the use environment, poor contact of conductive parts is caused by acid corrosion, high temperature, oxidation and the like, and the contact resistance is increased, so that the conductivity of the end plates is influenced. But the maintenance work amount of the problem is large, the risk is high, and the cathode roller is easy to damage or even scrap.

The Chinese patent publication No. CN101462218B discloses a method for repairing an electrolytic copper foil cathode roller, wherein a titanium cylinder connected with a titanium plate at two sides of the cathode roller needs to be disassembled, and a circular ring connected with the root of the titanium cylinder also needs to be disassembled. Obviously, the maintenance work volume is large and the risk is high.

Still like chinese utility model patent publication No. CN210796661U discloses a novel inside electrically conductive device for cathode roll, including cathode roll core, titanium end plate and a titanium section of thick bamboo, the cathode roll core runs through the titanium end plate setting, and the titanium end plate is fixed at titanium bobbin tip, is equipped with first copper sheathing and second copper sheathing on the cathode roll core, is equipped with the electrically conductive copper curb plate of first electrically conductive copper curb plate and second in the titanium end plate, and first copper sheathing is connected with the electrically conductive copper curb plate of first electrically conductive, and the second copper sheathing is connected with the electrically conductive copper curb plate of second, be equipped with the copper wire ring in the titanium section of thick bamboo, copper wire ring one end and first electrically conductive copper plate fixed connection, the copper wire ring other end is connected with the electrically conductive copper of second, still includes the copper line, the copper line is equipped with a plurality ofly, and the one end of a plurality of copper lines sets up respectively on first electrically conductive copper ring and the electrically conductive copper wire ring of second, and other end welded fastening is to the copper wire ring. The utility model discloses a through with negative pole roller both sides copper foil department induced electricity to negative pole roller center, prevent that the negative pole roller when the production copper foil, middle electric current weakens and can lead to the middle part copper foil to be thin partially, influences product quality. The problem of the decrease in the conductive performance of the cathode roll is not considered.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problems that the conductivity of the cathode roller of the conventional electrolytic copper foil cathode roller is reduced, the roller surface generates heat locally, the shaft end generates heat, the copper foil generates mottling and the like, and provides a device for repairing the conductivity of the cathode roller for the electrolytic copper foil, which can solve the problems.

The technical scheme of the utility model is as follows: an apparatus for repairing conductive properties of a cathode roll for electrolytic copper foil, comprising: the utility model discloses a titanium section of thick bamboo, including a titanium section of thick bamboo, electrically conductive main shaft, cup joint bush, a titanium section of thick bamboo outside electrically conductive main shaft and the end plate that is located a titanium section of thick bamboo both ends, the rigid coupling has interior conducting ring on the electrically conductive main shaft in a titanium section of thick bamboo, it has outer conducting ring to correspond the rigid coupling on the titanium section of thick bamboo inner wall, interior conducting ring and outer conducting ring pass through the copper bar and connect, end plate inner wall rigid coupling has the connecting plate unanimous with interior conducting ring and outer conducting ring figure, the connecting plate passes through the metal connecting wire and is connected with the interior conducting ring that corresponds.

In the scheme, the inner conducting rings and the outer conducting rings are respectively and uniformly distributed in the axial direction of the conducting main shaft and the titanium cylinder at intervals, and the inner conducting rings correspond to the outer conducting rings one to one.

In the scheme, the metal connecting wire is a copper flexible connecting wire.

In the scheme, the connecting plates are uniformly distributed on the end plate.

In the scheme, the end plate is divided into a left end plate and a right end plate, and the connecting plate on the left end plate and the connecting plate on the right end plate are symmetrically distributed.

The utility model has the beneficial effects that the conductive quantity of the end plate of the cathode roller is enhanced by increasing the metal connecting wire, so that the uniformity of the current on the surface of the cathode roller is improved, and the quality of the electrolytic copper foil is improved.

Drawings

FIG. 1 is a schematic of the present invention;

FIG. 2 is an enlarged partial schematic view of FIG. 1;

in the figure, the device comprises a bushing 1, a bushing 2, a conductive spindle 3, an inner conductive ring 4, a metal connecting wire 5, an end plate 6, a connecting plate 7, a copper bar 8, an outer conductive ring 9 and a titanium cylinder.

Detailed Description

The technical scheme in the embodiment of the utility model is clearly and completely described below with reference to the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments based on the embodiments in the present invention, without any inventive work, will be apparent to those skilled in the art from the following description.

An apparatus for repairing conductive properties of a cathode roll for electrolytic copper foil, comprising: electrically conductive main shaft 2, cup joint bush 1, a titanium section of thick bamboo 9 outside electrically conductive main shaft and the end plate 5 that is located a titanium section of thick bamboo both ends, the rigid coupling has interior conducting ring 3 on the electrically conductive main shaft in a titanium section of thick bamboo, it has outer conducting ring 8 to correspond the rigid coupling on the titanium section of thick bamboo inner wall, interior conducting ring passes through copper bar 7 with outer conducting ring and connects, end plate inner wall rigid coupling has the connecting plate 6 unanimous with interior conducting ring and outer conducting ring figure, the connecting plate passes through metal connecting wire 4 and is connected with the interior conducting ring that corresponds.

As shown in fig. 1-2, the number of the inner conducting rings is 4, the inner conducting rings are uniformly distributed on the conducting spindle at axial intervals, the number of the outer conducting rings is 4, the inner conducting rings are uniformly distributed on the inner wall of the titanium cylinder at axial intervals, the inner conducting rings correspond to the outer conducting rings in a one-to-one manner, and the metal connecting wires are preferably copper flexible connecting wires.

The cathode roller has 2 main channels in an internal conducting mode, wherein the internal conducting ring 3 and the external conducting ring 8 are connected through a copper bar 7, and the current is uniformly transmitted to the roller surface of the cathode roller through end plates 5 at two sides of the cathode roller. Because the cathode roller is in a severe use environment, the connecting part of the bushing 1 and the conductive main shaft 2 is in poor contact due to acid corrosion, high temperature, oxidation and the like, and the conductive resistance is increased, so that the current quantity transmitted from the end plate 5 to the roller surface is reduced, the current distribution on the roller surface of the cathode roller is uneven, and the quality of the copper foil is influenced. According to the utility model, a plurality of connecting plates 6 are welded on the inner side of the cathode roll end plate 5 according to actual requirements, and then the copper flexible connection 4 is connected with the inner conducting ring 3 to improve the conducting quantity of the cathode roll end plate, so that the current distribution of the surface of the cathode roll is reasonable and uniform.

Claims

1. An apparatus for repairing conductive properties of a cathode roll for electrolytic copper foil, comprising: electrically conductive main shaft (2), cup joint in electrically conductive outer bush (1) of main shaft, a titanium section of thick bamboo (9) and be located end plate (5) at a titanium section of thick bamboo both ends, characterized by: the utility model discloses a titanium section of thick bamboo, including titanium section of thick bamboo, electrically conductive main shaft is gone up to the rigid coupling has interior conducting ring (3), it has outer conducting ring (8) to correspond the rigid coupling on the titanium section of thick bamboo inner wall, interior conducting ring and outer conducting ring pass through copper bar (7) and connect, end plate inner wall rigid coupling has connecting plate (6) unanimous with interior conducting ring and outer conducting ring figure, the connecting plate passes through metal connecting wire (4) and is connected with the interior conducting ring that corresponds.

2. The apparatus for repairing conductive properties of an electrolytic copper foil using a cathode roll according to claim 1, wherein: the inner conducting rings and the outer conducting rings are respectively and uniformly distributed in the axial direction of the conducting main shaft and the titanium cylinder at intervals, and the inner conducting rings correspond to the outer conducting rings one to one.

3. The apparatus for repairing conductive properties of an electrolytic copper foil using a cathode roll according to claim 1, wherein: the metal connecting wire is a copper flexible connecting wire.

4. The apparatus for repairing conductive properties of an electrolytic copper foil using a cathode roll according to claim 1, wherein: the connecting plates are uniformly distributed on the end plates.

5. The apparatus for repairing conductive properties of an electrolytic copper foil using a cathode roll according to claim 1, wherein: the end plate is divided into a left end plate and a right end plate, and the connecting plate on the left end plate and the connecting plate on the right end plate are symmetrically distributed.