Electrolytic copper foil air-drying device

Abstract

The utility model discloses an electrolytic copper foil air drying device which comprises a cathode roller and a main air blowing pipe, the main air blowing pipe is located on the side edge of the cathode roller, a plurality of adjustable air nozzles are installed on the main air blowing pipe at equal intervals, and the ends of the adjustable air nozzles are connected with an air blower through air blowing hoses. According to the electrolytic copper foil air-drying device, the air volume of the adjustable tuyere in the middle position is minimum, the air volume of the adjustable tuyeres at the two ends is maximum, water on the surface of the copper foil can be effectively reduced, appearance abnormalities such as folding, oxidation and acid mist points caused by incomplete drying of the copper foil are reduced, the quality requirement of the electrolytic copper foil is guaranteed, the investment cost is low, and the income is large; and the design structure is simple, the installation cost is low, the use effect is remarkable, the quality problems of folding, oxidation, acid mist points and the like caused by incomplete drying of the copper foil can be reduced, and quality abnormity and scrapping are reduced.

Description

Technical Field

[0001] This utility model relates to the field of electrolytic copper foil production technology, specifically to an electrolytic copper foil drying device. Background Technology

[0002] Currently, in the electrolytic copper foil process, copper sulfate electrolyte is supplied between the anode plate and the cathode roller, and a voltage is applied between the anode plate and the cathode roller to electrolyze the copper sulfate electrolyte to form electrolytic copper foil on the surface of the cathode roller. After the electrolytic copper foil is peeled off from the cathode roller, it enters the subsequent dewatering process. During the winding process, it undergoes two dewatering processes to remove the residual copper sulfate electrolyte on the electrolytic copper foil.

[0003] During production, it was found that due to the weight and stress of the extrusion roller, and the fact that both the cathode roller and the extrusion roller are made of hard materials, some areas of the copper foil could not be squeezed dry, especially at the edges.

[0004] For example, in the electrolytic copper foil drying device disclosed in CN219347182U, the air nozzles are installed at both ends of one side of the air duct, and the other side of the air duct is connected to the blower through the air supply pipe. The air nozzles are either supported flexible hoses or universal heads with adjustable air blowing direction. The air nozzles face the oxidized edge of the copper foil, and the air nozzles have a "straight" opening.

[0005] The aforementioned electrolytic copper foil drying device is not very effective at removing residual copper sulfate electrolyte through its water-squeezing device. In actual production, if the copper foil is not completely dried, it will cause internal quality problems such as folding, oxidation, and acid fogging, resulting in abnormal quality, seriously affecting the quality of the copper foil and causing a large amount of scrap. Utility Model Content

[0006] The purpose of this invention is to provide an electrolytic copper foil drying device to solve the problems mentioned in the background art, such as folding, oxidation, and acid misting caused by the incomplete drying of copper foil by current drying devices on the market.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an electrolytic copper foil drying device, comprising a cathode roller and a main air pipe, the main air pipe being located on the side of the cathode roller, and multiple adjustable air nozzles being installed at equal intervals on the main air pipe, the ends of which are connected to a blower via flexible air hoses.

[0008] Preferably, an electrolytic copper foil body is deposited and reduced on the cathode roller. An acid spraying pipe is provided in front of the cathode roller in the driving direction. An acid squeezing roller is provided behind the acid spraying pipe. A water spraying pipe is provided behind the acid squeezing roller. A water squeezing roller is provided behind the water spraying pipe. A stripping roller is provided behind the water squeezing roller. A main air blowing pipe is provided between the water squeezing roller and the stripping roller. The electrolytic copper foil body is stripped at the stripping roller. A transition roller supporting the electrolytic copper foil body is provided behind the stripping roller. A winding roller is provided behind the transition roller.

[0009] Preferably, the cathode roller rotates counterclockwise.

[0010] Preferably, the adjustable nozzle has both angle and air pressure adjustment functions. The adjustable nozzle faces the electrolytic copper foil body, and the tilt angle of the adjustable nozzle is 45°.

[0011] Preferably, the end of the main air duct away from the blower is sealed.

[0012] Preferably, the adjustable nozzle has the largest air volume at both ends and the smallest air volume at the middle position.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model is equipped with adjustable nozzles. The adjustable nozzle in the middle position has the smallest air volume, while the adjustable nozzles at both ends have the largest air volume. This can effectively reduce the moisture on the surface of the copper foil, reduce appearance abnormalities such as creases, oxidation, and acid fog caused by incomplete drying of the copper foil, and ensure the quality requirements of electrolytic copper foil.

[0015] 2. This utility model application can significantly reduce the watermarks on the foil surface. The installation and modification of this device are simple and convenient, will not affect the normal operation of the equipment, have low investment costs, high returns, simple design structure, low installation cost, and significant use effect. It can reduce quality problems such as folding, oxidation, and acid fogging caused by incomplete drying of copper foil, and reduce quality abnormalities and scrap. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the electrolytic copper foil drying equipment of this utility model;

[0017] Figure 2 This is a schematic diagram of the main air duct of this utility model viewed from below.

[0018] In the diagram: 1. Cathode roller; 2. Stripping roller; 3. Electrolytic copper foil body; 4. Transition roller; 5. Main air blower; 6. Water squeezing roller; 7. Water spray pipe; 8. Acid squeezing roller; 9. Acid spray pipe; 10. Adjustable air nozzle; 11. Blower. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-2 The present invention provides the following technical solution:

[0021] An electrolytic copper foil drying device includes a cathode roller 1 and a main air pipe 5. The main air pipe 5 is located on the side of the cathode roller 1. Multiple adjustable nozzles 10 are installed at equal intervals on the main air pipe 5. The ends of the adjustable nozzles 10 are connected to a blower 11 through a blower hose. The adjustable nozzles 10 have both angle and air pressure adjustment functions. The adjustable nozzles 10 face the electrolytic copper foil body 3. The tilt angle of the adjustable nozzles 10 is 45°. The air volume is the largest at both ends of the adjustable nozzles 10 and the smallest at the middle position of the adjustable nozzles 10.

[0022] After the electrolytic copper foil body 3 is extruded, the watermarks on the edges are particularly obvious, while the middle is slightly better. The air nozzle in the middle can be adjusted to the minimum air volume, while the air nozzles at both ends can be adjusted to the maximum air volume to reduce the watermarks on the copper foil surface. This can significantly reduce the watermarks on the foil surface. Moreover, the installation and modification of this device are simple and convenient, and will not affect the normal operation of the equipment. The investment cost is low, the return is high, the structure is simple, the installation cost is cheap, and the use effect is significant. It can reduce quality problems such as folding, oxidation, and acid mist points caused by incomplete drying of the electrolytic copper foil body 3, and reduce quality abnormalities and scrap.

[0023] Electrolytic copper foil body 3 is deposited and reduced on the cathode roller 1. An acid spray pipe 9 is provided on the front side of the cathode roller 1 in the transmission direction. An acid squeezing roller 8 is provided on the rear side of the acid spray pipe 9. A water spray pipe 7 is provided on the rear side of the acid squeezing roller 8. A water squeezing roller 6 is provided on the rear side of the water spray pipe 7. A stripping roller 2 is provided on the rear side of the water squeezing roller 6. A main air blowing pipe 5 is provided between the water squeezing roller 6 and the stripping roller 2. The electrolytic copper foil body 3 is stripped at the stripping roller 2. A transition roller 4 supporting the electrolytic copper foil body 3 is provided on the rear side of the stripping roller 2. A winding roller is provided on the rear side of the transition roller 4. The cathode roller 1 rotates counterclockwise.

[0024] As the cathode roller 1 rotates, the electrolytic copper foil body 3 is reduced and deposited on the surface of the cathode roller 1. After being acid-washed by the acid spray pipe 9, the electrolytic copper foil body 3 is squeezed dry by the acid squeezing roller 8. After being washed by the water spray pipe 7, it is squeezed dry by the water squeezing roller 6. Then, it passes through the main air blowing pipe 5 and is peeled off from the cathode roller 1 by the action of the peeling roller 2. It is then carried to the winding shaft by the transition roller 4.

[0025] The end of the main air duct 5 that is away from the blower 11 is sealed.

[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An air-drying device for electrolytic copper foil, comprising a cathode roll (1) and a main blow pipe (5) located at the side of the cathode roll (1), characterized in that, A plurality of adjustable tuyeres (10) are installed on the main blowing pipe (5) at equal intervals, and the end of the adjustable tuyere (10) is connected with the air blower (11) through the air blowing hose; The adjustable tuyere (10) has the functions of angle and air pressure adjustment, and the adjustable tuyere (10) is directed to the electrolytic copper foil body (3), and the inclination angle of the adjustable tuyere (10) is 45°. The air volume of the adjustable tuyere (10) is the largest at both ends and the smallest at the middle position.

2. The electrolytic copper foil air-drying device according to claim 1, characterized by: The cathode roller (1) is provided with an acid spraying pipe (9) on the front side of the transmission direction, an acid extruding roller (8) is arranged on the rear side of the acid spraying pipe (9), a water spraying pipe (7) is arranged on the rear side of the acid extruding roller (8), a water extruding roller (6) is arranged on the rear side of the water spraying pipe (7), a stripping roller (2) is arranged on the rear side of the water extruding roller (6), a main blowing pipe (5) is arranged between the water extruding roller (6) and the stripping roller (2), the electrolytic copper foil body (3) is stripped at the stripping roller (2), a transition roller (4) is arranged on the rear side of the stripping roller (2) to support the electrolytic copper foil body (3), and a winding roller is arranged on the rear side of the transition roller (4).

3. The electrolytic copper foil air-drying device according to claim 1, characterized in that: The rotation direction of the cathode roller (1) is counterclockwise rotation.

4. The electrolytic copper foil air-drying device according to claim 1, characterized in that: The end of the main blowing pipe (5) far from the air blower (11) is in a sealed state.

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