Electroplating device for surface treatment of electrolytic copper foil

Abstract

The utility model provides a kind of electroplating device for electrolytic copper foil surface treatment, including electroplating box, the inside left and right ends of electroplating box are evenly provided with filter box, the inside of filter box is evenly placed with anode, the inside of filter box is evenly provided with several slide rods, slide rod is jointly connected with slide, the side wall of one end of slide near filter box is evenly provided with brush plate, brush plate is all in contact with filter box side wall, the rear end of electroplating box is provided with driving element for driving brush plate, through the electroplating device for electrolytic copper foil surface treatment of the utility model, by setting brush plate, slide drives brush plate to move, brush plate can scrape and brush filter box, can clean the impurities adhered on the side wall of filter box, improve the filtering efficiency of filter box.

Description

Technical Field

[0001] This utility model belongs to the technical field of electroplating equipment, and specifically relates to an electroplating device for surface treatment of electrolytic copper foil. Background Technology

[0002] Copper reacts rapidly with oxygen, moisture, and carbon dioxide in the air to form copper oxide, cuprous oxide, or basic copper carbonate, which leads to surface discoloration, decreased conductivity, and weakened adhesion to the negative electrode material. Electroplating a layer of a chemically more stable metal (such as zinc, nickel, or their alloys) acts as a physical barrier, isolating the copper substrate from contact with air. Even if the plating itself oxidizes slightly, it can protect the underlying copper from deep oxidation, thus keeping the copper foil bright and maintaining stable conductivity during storage, transportation, and use.

[0003] Most existing electroplating devices for surface treatment of electrolytic copper foil install anodes at both ends of an electrolytic cell, then transport the copper foil to be electrolyzed into the cell for electroplating. While this method can meet the requirements for electroplating copper foil, a significant amount of solid impurities are released from the anode during electrolysis. This necessitates the use of a filter box to filter the electrolyte. However, after prolonged filtration, impurities accumulate on the filter screen, reducing the effective filtration area and slowing down the electrolyte turnover rate in the electroplating cell. This leads to an increased ion concentration gradient, resulting in uneven mass transfer and a decrease in coating thickness and crystal quality. Utility Model Content

[0004] In view of this, this utility model addresses the shortcomings of the prior art by providing an electroplating device for surface treatment of electrolytic copper foil. By setting up a brush plate, a sliding plate drives the brush plate to move, and the brush plate can scrape the filter box, which can clean the impurities adhering to the side wall of the filter box and improve the filtration efficiency of the filter box.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an electroplating device for surface treatment of electrolytic copper foil, including an electroplating tank, filter boxes are provided at both the left and right ends of the electroplating tank, an anode is placed inside each filter box, several sliding rods are provided inside each filter box, a sliding plate is connected to the sliding rods, a brush plate is provided on the side wall of the sliding plate near the filter box, the brush plate abuts against the side wall of the filter box, and a driving component for driving the brush plate is provided at the rear end of the electroplating tank.

[0006] As a further improvement of this utility model, the driving component includes a telescopic push rod disposed at the rear end of the housing, and the telescopic end of the telescopic push rod is connected to the side wall of the slide plate.

[0007] As a further improvement of this utility model, the width of the brush plate at the bottom end is slightly shorter than the width of the brush plate at the side end and the top end.

[0008] As a further improvement of this utility model, the front end of the electroplating box is provided with a through hole that is compatible with the bottom brush plate, and a discharge box is provided at the front end of the through hole.

[0009] As a further improvement of this utility model, a valve is provided on the discharge box.

[0010] As a further improvement of this utility model, a rotating column is rotatably provided at the lower end of the electroplating box, and several connecting plates are symmetrically arranged at both ends of the rotating column. A rotating rod is connected between each pair of opposite connecting plates, and a rotating plate is provided on each rotating rod. A motor is provided at the rear end of the electroplating box, and the output end of the motor is connected to the rotating column through a coupling.

[0011] As a further improvement of this utility model, a feeding roller is rotatably arranged on the upper left side of the electroplating box, a receiving roller is rotatably arranged on the upper right side, and several tightening rollers are arranged inside the electroplating box.

[0012] As a further improvement of this utility model, several universal wheels are evenly arranged at the lower end of the electroplating box, and each universal wheel is equipped with a brake pad. Compared with the prior art, the beneficial effects of this utility model are as follows: Firstly, by setting up a brush plate, the telescopic end of the telescopic push rod drives the slide plate to move along the slide rod, and the slide plate drives the brush plate to move. The brush plate can scrape the filter box, which can clean the impurities adhering to the side wall of the filter box and improve the filtration efficiency of the filter box.

[0013] Secondly, by setting up a discharge box, which serves as a dedicated impurity collection container, all scraped-off dirt is collected and stored in a concentrated manner. The operation is simple, fast, and clean, greatly reducing maintenance difficulty and time.

[0014] Thirdly, by installing casters, electroplating boxes, which are usually large and heavy, are extremely difficult to move using traditional fixed installation methods. With casters, the entire electroplating box can be easily pushed into or moved out of the production line by forklift or manpower, which can greatly reduce the difficulty and cost of equipment installation and disassembly. Fourth, by setting up a rotating plate, the electrolyte can be stirred. In a static or slow-flowing electrolyte, metal ions are consumed quickly and replenished slowly near the cathode, forming a concentration gradient (boundary layer thickening). Stirring accelerates the liquid flow, breaks the boundary layer, and allows the metal ions dissolved at the anode to diffuse quickly and evenly throughout the entire tank, especially on the cathode (copper foil) surface, avoiding localized electrolyte deficiency and ensuring consistent plating thickness. Attached Figure Description

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0016] Figure 1This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of this utility model; Figure 3 This is a schematic diagram of the brush plate, slide plate, and slide bar structure of this utility model; Figure 4 This is a top view of the structure of this utility model.

[0017] In the diagram: 101, electroplating box; 102, filter box; 103, anode; 104, slide bar; 105, slide plate; 106, brush plate; 107, telescopic push rod; 201, discharge box; 202, valve; 203, rotating column; 204, connecting plate; 205, rotating rod; 206, rotating plate; 207, motor; 301, feeding roller; 302, tightening roller; 303, receiving roller; 304, caster wheel. Detailed Implementation

[0018] To better understand this utility model, the following embodiments further illustrate its content, but the scope of protection of this utility model is not limited to the embodiments described below. Numerous specific details are set forth in the following description to provide a more thorough understanding of this utility model. However, it will be apparent to those skilled in the art that this utility model can be practiced without one or more of these details.

[0019] like Figure 1 , 2 As shown in Figure 3, an electroplating apparatus for surface treatment of electrolytic copper foil includes an electroplating tank 101. Filter boxes 102 are provided at both the left and right ends of the electroplating tank 101. An anode 103 is placed inside each filter box 102. Several slide rods 104 are provided inside each filter box 102. A slide plate 105 is connected to each slide rod 104. A brush plate 106 is provided on the side wall of the slide plate 105 near the filter box 102. The brush plate 106 abuts against the side wall of the filter box 102. A driving component for driving the brush plate 106 is provided at the rear end of the electroplating tank 101.

[0020] like Figure 4As shown, the driving component includes a telescopic push rod 107 located at the rear end of the housing. The telescopic end of the telescopic push rod 107 is connected to the side wall of the slide plate 105. The width of the brush plate 106 located at the bottom end is slightly shorter than the width of the brush plates 106 located at the side and top ends. When the telescopic push rod 107 is activated, the telescopic end of the telescopic push rod 107 drives the slide plate 105 to move along the slide rod 104. The slide plate 105 drives the brush plate 106 to move. The brush plate 106 can scrape and brush the filter box 102, cleaning the impurities adhering to the side wall of the filter box 102. The width of the brush plate 106 located at the top and side ends first covers the top and side of the filter box 102. The side walls are cleaned, and solid impurities fall onto the lower side wall of the filter box 102. The brush plate 106 at the lower end can clean the solid material on the lower side wall of the filter box 102, thereby allowing the top brush plate 106 to clean the top inner wall of the filter box 102, preventing impurities from accumulating and forming a crust. The side brush plate 106 moves along the height direction to scrape off the filter cake and particles attached to the entire side wall surface. The lower brush plate 106 is specifically responsible for cleaning the solid material scraped off by the upper brush plate 106 and accumulated at the bottom, thus achieving three-dimensional cleaning from top to bottom and from side to bottom, ensuring that the inside of the filter box 102 is thoroughly cleaned.

[0021] like Figure 1 , 4 As shown, the electroplating tank 101 has a through hole at the front end that matches the bottom brush plate 106. A discharge box 201 is provided at the front end of the through hole. Impurities brushed off by the brush plate 106 can be pushed to the discharge box 201 through the through hole for collection. The through hole provides a precise outlet channel for the brushing path of the brush plate 106. When the brush plate 106 reciprocates, it forcefully pushes the impurities attached to the filter plate or the bottom of the tank and sends them directly into the discharge box 201 through the through hole. This prevents impurities from splashing, scattering, or causing secondary contamination of the electrolyte inside the tank. The discharge box 201 serves as a dedicated impurity collection container, which collects all the scraped dirt. The operation is simple, fast, and clean, greatly reducing maintenance difficulty and time.

[0022] like Figure 1 As shown, a valve 202 is installed on the discharge box 201. The valve 202 can control the time of impurity discharge. As a switch, the valve 202 can be opened at a specific time to discharge the accumulated impurities in a concentrated manner, eliminating the need for cleaning after each scraping, thereby reducing the frequency of operation, improving maintenance efficiency, and avoiding the risk of wear and leakage of seals caused by frequent opening and closing.

[0023] like Figure 2 , 3As shown, a rotating column 203 is rotatably mounted at the lower end of the electroplating tank 101. Several connecting plates 204 are symmetrically arranged at both ends of the rotating column 203. A rotating rod 205 is connected between every two opposing connecting plates 204. A rotating plate 206 is mounted on each rotating rod 205. A motor 207 is located at the rear end of the electroplating tank 101. The output end of the motor 207 is connected to the rotating column 203 via a coupling. When the motor 207 is started, its output end drives the rotating column 203 to rotate, and the rotating column 203 drives the connecting plates 206 to rotate. When plate 204 rotates, connecting plate 204 drives rotating rod 205 to rotate. Rotating rod 205 rotates with rotating plate 206, thereby stirring the electrolyte. In a static or slowly flowing electrolyte, metal ions are consumed quickly and replenished slowly near the cathode, forming a concentration gradient (boundary layer thickening). Stirring accelerates the liquid flow, breaks the boundary layer, and allows the metal ions dissolved in anode 103 to diffuse quickly and evenly throughout the entire tank, especially the cathode (copper foil) surface, avoiding localized electrolyte deficiency and ensuring consistent plating thickness.

[0024] like Figure 1 , 2 As shown, a feeding roller 301 is rotatably mounted on the upper left side of the electroplating tank 101, and a receiving roller 303 is rotatably mounted on the upper right side. Several tightening rollers 302 are installed inside the electroplating tank 101. The tightening rollers 302 can tighten the copper foil to prevent wrinkles from forming during the electroplating process. If the copper foil is loose, it will easily produce transverse or longitudinal wrinkles after entering the electroplating tank due to the impact of the liquid flow or the friction of the guide rollers. The tension applied by the tightening rollers 302 keeps the copper foil straight and flat. Even at high speed, it can effectively smooth out small waves, thereby making the surface of the copper foil smooth and flat, laying the foundation for subsequent uniform electroplating.

[0025] like Figure 1 As shown, the lower end of the electroplating box 101 is evenly provided with several casters 304. The electroplating box 101 is usually large in size and heavy in weight, and it is extremely difficult to move it by the traditional fixed installation method. With the casters 304, the entire electroplating box 101 can be easily pushed into or moved out of the production line by forklift or manpower, which can greatly reduce the difficulty and cost of equipment installation and disassembly. In use, the copper foil to be electroplated is installed on the feeding roller 301, the copper foil is pulled out and passed through the tension roller, and fixed on the receiving roller 303. Electroplating solution is poured into the electroplating tank 101, and rotating the receiving roller 303 can move the copper foil, thereby performing electroplating on the copper foil. During the electroplating process, when the anode 103 dissolves, insoluble residues, oxides, and nodule debris will be generated. These impurities adhere to the surface of the copper foil, forming fatal defects such as pits, bumps, and pinholes. Therefore, it is necessary to use the filter box 102 to filter the electrolyte.

[0026] After prolonged filtration, impurities accumulate on the filter screen surface in filter box 102, reducing the effective filtration area and slowing down the electrolyte turnover rate in the electroplating tank. At this point, the telescopic push rod 107 is activated. The telescopic end of the push rod 107 moves the sliding plate 105 along the sliding rod 104. The sliding plate 105 then moves the brush plate 106, which scrapes and cleans the impurities adhering to the side walls of filter box 102. The brush plates 106 located at the top and sides first clean the top and side walls of filter box 102, removing solid impurities. The solid material falls onto the lower side wall of the filter box 102. The brush plate 106 at the lower end can clean the solid material on the lower side wall of the filter box 102, thereby allowing the top brush plate 106 to clean the inner top wall of the filter box 102, preventing impurities from accumulating and forming a crust. The side brush plate 106 moves along the height direction to scrape off the filter cake and particles attached to the entire side wall surface. The lower brush plate 106 is specifically responsible for cleaning the solid material scraped off by the upper brush plate 106 and accumulated at the bottom, thus achieving three-dimensional cleaning from top to bottom and from side to bottom, ensuring that the inside of the filter box 102 is thoroughly cleaned.

[0027] Impurities brushed off by the brush plate 106 can be pushed to the discharge box 201 through the through hole for collection. The through hole provides a precise outlet channel for the brush plate 106's scraping path. When the brush plate 106 reciprocates, it powerfully pushes the impurities attached to the filter plate or the bottom of the box and sends them directly into the discharge box 201 through the through hole. This prevents impurities from splashing, scattering, or causing secondary contamination of the electrolyte inside the box. The discharge box 201 serves as a dedicated impurity collection container, storing all the scraped dirt in a concentrated manner. The operation is simple, fast, and clean, greatly reducing maintenance difficulty and time.

[0028] The discharge box 201 is equipped with a valve 202, which can control the time of impurity discharge. As a switch, the valve 202 can be opened at a specific time to discharge the accumulated impurities in a concentrated manner, eliminating the need for cleaning after each scraping, thereby reducing the frequency of operation, improving maintenance efficiency, and avoiding the risk of wear and leakage of seals caused by frequent opening and closing.

[0029] According to another embodiment of the present invention, such as Figure 1 As shown, all 304 casters are equipped with brake pads. After the equipment is in place, the brake pads are depressed to completely lock the wheels, preventing minor displacement caused by vibration or fluid flow impact during operation, preventing accidental slippage of the equipment, causing personal injury or equipment collision, and improving equipment safety.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. An electroplating apparatus for surface treatment of electrolytic copper foil, comprising an electroplating tank (101), characterized in that: The electroplating tank (101) has filter boxes (102) at both its left and right ends. Anodes (103) are placed inside each filter box (102). Several slide rods (104) are provided inside each filter box (102). A slide plate (105) is connected to each slide rod (104). A brush plate (106) is provided on the side wall of the slide plate (105) near the filter box (102). The brush plate (106) abuts against the side wall of the filter box (102). A driving component for driving the brush plate (106) is provided at the rear end of the electroplating tank (101).

2. The electroplating apparatus for surface treatment of electrolytic copper foil as described in claim 1, characterized in that: The drive unit includes a telescopic push rod (107) located at the rear end of the housing, and the telescopic end of the telescopic push rod (107) is connected to the side wall of the slide plate (105).

3. The electroplating apparatus for surface treatment of electrolytic copper foil as described in claim 1, characterized in that: The width of the brush plate (106) at the bottom is slightly shorter than the width of the brush plates (106) at the sides and top.

4. The electroplating apparatus for surface treatment of electrolytic copper foil as described in claim 1, characterized in that: The electroplating box (101) has a through hole at the front end that is compatible with the bottom brush plate (106), and a discharge box (201) is provided at the front end of the through hole.

5. The electroplating apparatus for surface treatment of electrolytic copper foil as described in claim 4, characterized in that: A valve (202) is provided on the discharge box (201).

6. The electroplating apparatus for surface treatment of electrolytic copper foil as described in claim 1, characterized in that: The lower end of the electroplating tank (101) is rotatably equipped with a rotating column (203). Several connecting plates (204) are symmetrically arranged at both ends of the rotating column (203). A rotating rod (205) is connected between each pair of opposite connecting plates (204). A rotating plate (206) is arranged on each rotating rod (205). A motor (207) is arranged at the rear end of the electroplating tank (101). The output end of the motor (207) is connected to the rotating column (203) through a coupling.

7. The electroplating apparatus for surface treatment of electrolytic copper foil as described in claim 1, characterized in that: The electroplating box (101) has a feeding roller (301) rotatably mounted on the upper left side and a receiving roller (303) rotatably mounted on the upper right side. The electroplating box (101) also has several tightening rollers (302) inside.

8. The electroplating apparatus for surface treatment of electrolytic copper foil as described in claim 1, characterized in that: The lower end of the electroplating box (101) is evenly provided with several casters (304), and each caster (304) is provided with a brake pad.

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