A cathode roller conductive device and its installation and heat dissipation method

Abstract

This invention provides a cathode roller conductive device and its installation and heat dissipation method, relating to the technical field of foil production equipment. It includes a heat-conducting mesh, an oil guide groove, a protective cover, and a cooling fan. The heat-conducting mesh comprises an arc-shaped copper tube, a straight copper tube, a supporting copper tube, and a spring assembly. The oil guide groove includes a conductive copper base, an oil delivery interface, a copper busbar, electrodes, and a mounting bracket. The conductive ring on the cathode roller is in direct contact with the electrodes and the heat-conducting mesh. This invention achieves efficient heat dissipation of the cathode roller by delivering coolant from the oil delivery interface to the heat-conducting mesh, and through the contact between the heat-conducting mesh and the conductive ring, effectively solving the heat dissipation problem of the cathode roller conductive ring, reducing wear between the electrodes and the conductive ring. Simultaneously, the heat-conducting mesh is made of red copper alloy, which conducts electricity in contact with the conductive ring, thereby increasing the conductivity of the cathode roller and improving the production efficiency of the foil production machine.

Description

Technical Field

[0001] This invention relates to the field of foil production equipment technology, and more specifically to a cathode roller conductive device and its installation and heat dissipation method. Background Technology

[0002] The copper foil production machine mainly consists of an anode tank, a cathode roller, a cathode roller drive unit, a cathode roller conductive device, and a winding device. It is primarily used for copper foil production. The working principle of the copper foil production machine is as follows: The cathode roller and the production machine form a production unit. The anode tank is connected to the positive terminal of the power supply, and the cathode roller is connected to the negative terminal. When the copper sulfate electrolyte enters the anode tank, an electric field is formed between the positive and negative electrodes. Under the action of the electric field, copper ions migrate to and deposit on the surface of the cathode roller. The deposited copper is very thin and is peeled off from the cathode roller and wound onto another roller. This continuous circulation of the electrolyte ensures the continuous production of copper foil. Copper ions are continuously deposited on the cathode roller under the action of the electric field, continuously peeled off, and wound onto the winding shaft. The remaining devices are necessary to ensure the quality requirements of the copper foil and the reliability of continuous production.

[0003] The cathode roller conductive device includes electrodes, oil guide grooves, oil supply pipes, and mounting brackets. It contacts the conductive ring of the cathode roller to realize the cathode circuit of the cathode roller. However, during the operation of the foil making machine, the conductive ring of the cathode roller is in long-term contact and friction with the conductive electrode, which generates a lot of heat and can easily affect the conductivity of the conductive ring. At the same time, it will accelerate the wear of the electrode. Traditional conductive devices cool the conductive ring by introducing coolant into the oil guide groove, but the heat dissipation efficiency is not ideal. A new heat dissipation method and a corresponding conductive device are needed to solve the above problems.

[0004] There are some reports on cathode roller conductive devices in the prior art. For example, application number CN201610729438.2 discloses a conductive electrode for a foil-making machine and its manufacturing method. The conductive electrode includes two electrode bases and two tungsten-copper alloy plates. A corner of the upper surface of each electrode base is machined into a bevel, and the bevels on each electrode base correspond to each other. Sheet-shaped tungsten-copper alloy plates are fixed to the bevels on the upper surfaces of each electrode base to form the conductive electrode. The surface of the tungsten-copper alloy plate of the conductive electrode is in line contact with the outer circumferential surface of the conductive copper ring. However, the above technology does not consider the heat dissipation problem of the conductive ring, and the contact area between the electrode and the conductive ring is too small, resulting in unstable conductivity.

[0005] For example, patent application CN201811627278.6 discloses a cathode roller mill, including a headstock; an upper roller is mounted on the headstock, and an adjusting component is provided between the upper roller and the headstock, the adjusting component driving the upper roller to move; two lower rollers are mounted on the headstock, and the two lower rollers and the upper roller are arranged in a triangular configuration; a carbon brush assembly is correspondingly mounted to the lower rollers; the carbon brush assembly includes a lower roller shaft, the middle part of which is mounted on the headstock via a bearing, and the lower roller is fixedly mounted at one end of the lower roller shaft; a conductive slip ring is fixedly mounted at the other end of the lower roller shaft; and a conductive copper busbar is supported on the headstock. However, the above technology does not significantly improve the thermal conductivity of the cathode roller, and the conductivity is difficult to meet the production requirements of copper foil. Summary of the Invention

[0006] In view of the shortcomings of the prior art, the purpose of this invention is to provide a cathode roller conductive device and its installation and heat dissipation method.

[0007] The technical solution adopted by this invention to solve the technical problem is: a cathode roller conductive device, the conductive device including a heat-conducting mesh, a conductive ring, a cathode roller main shaft, an oil guide groove, and a protective cover, wherein the heat-conducting mesh is disposed close to the outer surface of the conductive ring; the heat-conducting mesh is connected to the oil guide groove, and coolant flows in both the heat-conducting mesh and the oil guide groove; the protective cover is disposed outside the heat-conducting mesh; the heat-conducting mesh includes an arc-shaped copper tube, a straight copper tube, a supporting copper tube, and a spring assembly; the oil guide groove includes a conductive copper base, an oil delivery interface, a copper busbar, an electrode, and a mounting bracket; the copper busbar is connected to a power source to form a cathode circuit of the cathode roller; the electrode is in tangential contact with the conductive ring to connect the cathode circuit of the cathode roller.

[0008] Furthermore, the upper part of the heat-conducting mesh is formed by the alternating arrangement of the arc-shaped copper pipe and the straight copper pipe. The arc-shaped copper pipe is connected to the oil delivery interface on the oil guide groove through the mounting bracket. The arc-shaped copper pipe and the straight copper pipe are interconnected for the flow of coolant.

[0009] Furthermore, the lower part of the heat-conducting mesh is composed of the supporting copper tube and the spring assembly. The supporting copper tube is used to connect the heat-conducting mesh and the oil guide groove. The spring assembly uses spring force to keep the heat-conducting mesh tightly attached to the outer surface of the conductive ring.

[0010] Furthermore, the heat-conducting mesh is made of a copper alloy with excellent thermal and electrical conductivity; the electrode is made of a copper alloy with high strength and high electrical conductivity.

[0011] Furthermore, the conductive device also includes a cooling fan, which is distributed on both sides of the heat-conducting mesh and consists of multiple fan blades; the cooling fan can be installed on the cathode roller main shaft and accommodated in the protective cover.

[0012] Furthermore, the coolant in the oil guide groove has cooling and lubrication effects. The coolant is input into the oil guide groove through the oil delivery interface and kept flowing. The oil delivery interface is connected to the foil production machine oil pump for continuous input and output of coolant.

[0013] A method for installing a cathode roller conductive device, the method comprising the following steps:

[0014] Step 1: Install the oil guide groove, connect the oil delivery interface to the oil pump, and connect the copper busbar to the power supply of the foil production machine;

[0015] Step 2: Install the cathode roller by placing the conductive ring in the oil guide groove;

[0016] Step 3: Install the heat-conducting mesh and adjust the spring assembly to ensure that the conductive ring remains in contact with the heat-conducting mesh and the electrode;

[0017] Step 4: Install the cooling fan onto the cathode roller main shaft and install the protective cover;

[0018] Step 5: Start the oil pump to allow coolant to flow into the heat-conducting mesh and oil guide groove through the oil inlet;

[0019] Step Six: Connect the power supply and start the foil-making machine to enter the working state. The conductive device will begin to dissipate heat on its own.

[0020] A heat dissipation method for a cathode roller conductive device is disclosed. During the operation of a foil-making machine, under the force of the spring assembly, the conductive ring contacts and rubs against the electrode and the heat-conducting mesh, generating a large amount of heat. The coolant in the heat-conducting mesh is transported to most of the outer surface of the conductive ring, and the heat generated by the conductive ring is carried away by the coolant flowing in the heat-conducting mesh. The cooling fans on both sides of the heat-conducting mesh rotate together with the main shaft of the cathode roller, accelerating air circulation, thereby achieving efficient cooling.

[0021] The beneficial effects of the present invention are as follows: Compared with the prior art, the cathode roller conductive device and its installation and heat dissipation method provided by the present invention have the following advantages:

[0022] 1) This invention introduces coolant into the heat-conducting mesh through the oil inlet and adjusts the spring assembly to ensure continuous contact between the heat-conducting mesh and the conductive ring. The heat-conducting mesh can cover most of the conductive ring of the cathode roller, and the heat-conducting mesh made of red copper alloy has excellent thermal conductivity, thereby achieving heat dissipation and cooling of the conductive ring. In addition, this invention also utilizes the characteristic that the conductive ring rotates around the main shaft when the cathode roller is working. The cooling fans on both sides will rotate together with the main shaft of the cathode roller, accelerating air circulation, which is more efficient than traditional cooling methods.

[0023] 2) Because the heat-conducting mesh made of red copper alloy has excellent electrical conductivity, it increases the contact area between the conductive ring and the conductive device during the contact process, thereby improving the conductivity efficiency and increasing the production efficiency of the foil production machine.

[0024] 3) By setting a heat-conducting mesh on the upper half of the cathode roller conductive ring, the present invention makes the cathode roller conductive ring more uniformly stressed during operation, reduces the occurrence of local wear, improves the service life of the foil production machine, and enhances the production quality of copper foil. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the conductive device provided by the present invention;

[0026] Figure 2 This is a schematic diagram of the heat-conducting mesh component in the conductive device provided by the present invention;

[0027] Figure 3 This is a schematic diagram of the oil guide groove component in the conductive device provided by the present invention;

[0028] Figure 4 A schematic diagram illustrating the method of using the conductive device provided by the present invention;

[0029] Figure 5 This is a partial schematic diagram of the spring assembly in the conductive device provided by the present invention;

[0030] Among them: 1-heat conduction mesh, 2-oil guide groove, 3-protective cover, 4-cooling fan, 5-conductive ring, 6-cathode roller main shaft, 11-arc copper tube, 12-straight copper tube, 13-supporting copper tube, 14-spring assembly, 21-conductive copper base, 22-oil delivery interface, 23-copper busbar, 24-electrode, 25-mounting bracket. Detailed Implementation

[0031] The present invention will be further illustrated below with specific embodiments. However, these examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0032] Example

[0033] This embodiment provides a novel cathode roller conductive device. Please refer to [link / reference]. Figure 1It includes a heat-conducting mesh 1, an oil-guiding groove 2, a protective cover 3, and a cooling fan 4. The heat-conducting mesh 1 includes an arc-shaped copper pipe 11, a straight copper pipe 12, a supporting copper pipe 13, and a spring assembly 14. The oil-guiding groove 2 includes a conductive copper base 21, an oil delivery interface 22, a copper busbar 23, an electrode 24, and a mounting bracket 25.

[0034] In this embodiment, please refer to Figure 2 , Figure 4 The upper part of the heat-conducting mesh 1 is composed of alternating arc-shaped copper tubes 11 and straight copper tubes 12, connected by welding followed by annealing. The arc-shaped copper tubes 11 are connected to the oil inlet 22 on the oil channel 2 via the mounting bracket 25, and the arc-shaped copper tubes 11 and the straight copper tubes 12 are interconnected for the flow of coolant. The lower part of the heat-conducting mesh 1 consists of a supporting copper tube 13 and a spring assembly 14. The supporting copper tube 13 connects the heat-conducting mesh 1 to the oil channel 2, and the spring assembly 14 uses spring force to keep the heat-conducting mesh 1 tightly attached to the outer surface of the conductive ring 5. The heat-conducting mesh 1 is made of a red copper alloy with excellent thermal and electrical conductivity.

[0035] In this embodiment, please refer to Figure 3 The oil guide groove 2 contains coolant with cooling and lubricating effects, which is introduced into the oil guide groove 2 through the oil inlet 22 and kept flowing. The oil inlet 22 is connected to the foil production machine oil pump for continuous input and output of coolant, keeping the coolant flowing in the oil guide groove 2 and the heat-conducting mesh 1. The copper busbar 23 is connected to the power supply and is used to form the cathode circuit of the cathode roller. The electrode 24 is made of high-strength, high-conductivity red copper alloy and is in tangential contact with the conductive ring 5 to connect the cathode circuit of the cathode roller.

[0036] In this embodiment, please refer to Figure 2 , Figure 5 The protective cover 3 covers the heat-conducting mesh 1. The heat dissipation fan 4 is distributed on both sides of the heat-conducting mesh 1, and is composed of multiple fan blades. It can be installed on the cathode roller main shaft 6 and can be accommodated in the protective cover 3.

[0037] This embodiment provides an installation method for a cathode roller conductive device, including the following steps:

[0038] Step 1: Install the oil guide groove 2, and connect the oil delivery interface 22 to the oil pump and the copper busbar 23 to the power supply of the foil production machine.

[0039] Step 2: Install the cathode roller and place the conductive ring 5 in the oil guide groove 2.

[0040] Step 3: Install the heat-conducting mesh 1 and adjust the spring assembly 14 to keep the conductive ring 5 in contact with the heat-conducting mesh 1 and the electrode 24.

[0041] Step 4: Install the cooling fan 4 onto the cathode roller main shaft 6 and install the protective cover 3.

[0042] Step 5: Start the oil pump to allow the coolant to flow into the heat-conducting mesh 1 and the oil guide groove 2 through the oil inlet 22.

[0043] Step Six: Connect the power supply and start the foil-making machine to enter the working state. The conductive device will begin to dissipate heat on its own.

[0044] This embodiment provides a heat dissipation method for a cathode roller conductive device. During the operation of the foil-making machine, under the force of the spring assembly 14, the conductive ring 5 contacts and rubs against the electrode 24 and the heat-conducting mesh 1, generating a large amount of heat. Since the heat-conducting mesh 1 can transport the coolant to most of the outer surface of the conductive ring 5, the heat generated by the conductive ring 5 is carried away by the coolant flowing in the heat-conducting mesh 1. The cooling fans 4 on both sides of the heat-conducting mesh 1 rotate together with the cathode roller main shaft 6, accelerating air circulation and thus achieving efficient cooling. At the same time, the heat-conducting mesh 1 made of red copper alloy is connected to the conductive copper base 21, which can play a similar conductive role as the electrode 24, improving the conductivity of the equipment.

[0045] The above embodiments are only used to illustrate the present invention and are not intended to limit the present invention. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also fall within the scope of the present invention, and the patent protection scope of the present invention should be defined by the claims.

Claims

1. A cathode roller conductive device, characterized in that: The conductive device includes a heat-conducting mesh, a conductive ring, a cathode roller main shaft, an oil guide groove, a protective cover, and a cooling fan. The heat-conducting mesh is disposed close to the outer surface of the conductive ring. The heat-conducting mesh is connected to the oil guide groove, and coolant flows through both the heat-conducting mesh and the oil guide groove. The protective cover is disposed on the outside of the heat-conducting mesh. The cooling fans are distributed on both sides of the heat-conducting mesh. The heat-conducting mesh includes an arc-shaped copper tube, a straight copper tube, a supporting copper tube, and a spring assembly. The oil guide groove includes a conductive copper base, an oil delivery interface, a copper busbar, an electrode, and a mounting bracket. The copper busbar is connected to a power source to form the cathode circuit of the cathode roller. The electrode is in tangential contact with the conductive ring to connect the cathode circuit of the cathode roller.

2. The cathode roller conductive device as described in claim 1, characterized in that: The upper part of the heat-conducting mesh is formed by the alternating arrangement of the arc-shaped copper pipe and the straight copper pipe. The arc-shaped copper pipe is connected to the oil delivery interface on the oil guide groove through the mounting bracket. The arc-shaped copper pipe and the straight copper pipe are interconnected for the flow of coolant.

3. The cathode roller conductive device as described in claim 1, characterized in that: The lower part of the heat-conducting mesh is composed of the supporting copper tube and the spring assembly. The supporting copper tube is connected to the oil guide groove, and the spring assembly keeps the heat-conducting mesh tightly attached to the outer surface of the conductive ring by the spring force.

4. The cathode roller conductive device as described in claim 1, characterized in that: The heat-conducting mesh is made of copper alloy; the electrodes are made of copper alloy.

5. The cathode roller conductive device as described in claim 1, characterized in that: The cooling fan consists of multiple fan blades; the cooling fan is mounted on the cathode roller main shaft and housed within the protective cover.

6. The cathode roller conductive device as described in claim 1, characterized in that: The coolant in the oil guide groove has cooling and lubrication effects. The coolant is input into the oil guide groove through the oil inlet and kept flowing. The oil inlet is connected to the foil production machine oil pump for continuous input and output of coolant.

7. A method for installing the cathode roller conductive device as described in claim 1, characterized in that: The installation method includes the following steps: Step 1: Install the oil guide groove, connect the oil delivery interface to the oil pump, and connect the copper busbar to the power supply of the foil production machine; Step 2: Install the cathode roller by placing the conductive ring in the oil guide groove; Step 3: Install the heat-conducting mesh and adjust the spring assembly to ensure that the conductive ring remains in contact with the heat-conducting mesh and the electrode; Step 4: Install the cooling fan onto the cathode roller main shaft and install the protective cover; Step 5: Start the oil pump to allow coolant to flow into the heat-conducting mesh and oil guide groove through the oil inlet; Step Six: Connect the power supply and start the foil-making machine to enter the working state. The conductive device will begin to dissipate heat on its own.

8. A heat dissipation method for the cathode roller conductive device as described in claim 1, characterized in that: During the operation of the foil-making machine, under the force of the spring assembly, the conductive ring comes into contact with the electrode and the heat-conducting mesh, generating a large amount of heat. The coolant in the heat-conducting mesh is transported to most of the outer surface of the conductive ring, and the heat generated by the conductive ring is carried away by the coolant flowing in the heat-conducting mesh. The cooling fans on both sides of the heat-conducting mesh rotate together with the main shaft of the cathode roller, accelerating the air circulation, thereby achieving efficient cooling.

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