Plating bath device capable of improving deep plating capacity

Abstract

The utility model discloses a plating bath device for improving deep plating ability, which comprises a plating bath body, guide rail assemblies, an anode assembly, a cathode assembly and a bath solution circulating device, the guide rail assemblies are fixedly connected to the edges of the two sides of the upper end of the plating bath body respectively, and an adjusting assembly is fixedly mounted between the two guide rail assemblies. The adjusting assembly is slidably connected in the plating tank body, an anode assembly is fixedly connected to the adjusting assembly, the anode assembly is composed of a plurality of anode plates, a cathode assembly is arranged on the inner wall, opposite to the anode assembly, of the plating tank body, and tank liquid circulating devices are connected to the two sides of the plating tank body. The utility model aims to provide the electroplating bath device which is good in electroplating effect, high in working efficiency and strong in applicability.

Description

Technical Field

[0001] The utility model relates to the technical field of workpiece electroplating process equipment, in particular to an electroplating tank device for improving deep plating capability. Background Art

[0002] Electroplating is a technique for coating a metal or other conductive material with a layer of metal. This is usually accomplished by immersing the object in a solution (plating bath) containing ions of the desired metal and applying an electric current through the solution. The current causes the metal ions to reduce and deposit on the surface of the object, forming a uniform metal layer. Electroplating is widely used in the manufacturing industry to improve the corrosion resistance, wear resistance, aesthetics, and in some cases, to change the electrical properties of a product.

[0003] Although electroplating technology has made significant progress, existing electroplating tank equipment faces many challenges when processing deep holes, blind holes or complex-shaped workpieces. Conventional electroplating tanks often have difficulty in achieving uniform electroplating of deep structures due to uneven current distribution, which causes significant differences in the thickness of the electroplated layer at different parts of the workpiece. This unevenness may lead to insufficient adhesion of the electroplated layer at depth, or even the inability to plate, affecting the overall quality and performance of the product.

[0004] In addition, with the advancement of industrial technology, the requirements for the precision and quality of electroplated parts are getting higher and higher, especially in high-tech fields such as aerospace, precision electronics and medical devices. These applications often require that the electroplating layer must be formed evenly on tiny or complex geometric structures. Therefore, the limitations of traditional electroplating technology have become a major bottleneck.

[0005] In view of this, it is necessary to develop a new type of electroplating tank device, which can improve the distribution of current in the electroplating tank, improve the deep plating ability, and ensure that a uniform electroplating layer with good adhesion can be obtained even in deep holes or workpieces with complex structures. The purpose of the utility model is to provide such an improved electroplating tank device, which will achieve a more optimized current density distribution by improving the tank structure or adding auxiliary electrodes, so as to meet the high standards of electroplating quality in modern industry. Utility Model Content

[0006] In view of the above-mentioned deficiencies existing in the prior art, the utility model aims to provide an electroplating tank device with good electroplating effect, high working efficiency and strong applicability.

[0007] The utility model adopts the following technical scheme to achieve the above-mentioned purpose: an electroplating tank device for improving deep plating ability, comprising a plating tank body, a guide rail assembly, an anode assembly, a cathode assembly, and a tank liquid circulation device. The plating tank body is made of corrosion-resistant materials, such as stainless steel or plastic, etc., to carry various chemical solutions used in electroplating. The edges of the upper end and both sides of the plating tank body are respectively fixedly connected with the guide rail assemblies. An adjustment assembly is fixedly installed between two groups of the guide rail assemblies. The adjustment assembly can slide relatively along the guide rail assembly. The adjustment assembly is slidably connected in the plating tank body. An anode assembly is fixedly connected to the adjustment assembly. The anode assembly can move up and down through the adjustment assembly. The insertion depth of the anode can be adjusted according to the depth of the workpiece to achieve uniform distribution of current density. The anode assembly is composed of a plurality of anode plates. A cathode assembly is arranged on the inner wall of the plating tank body opposite to the anode assembly. Both sides of the plating tank body are connected with tank liquid circulation devices. The tank liquid circulation devices are responsible for the circulation and filtration of the electroplating solution to ensure the uniformity and cleanliness of the tank liquid and improve the quality of electroplating.

[0008] In one of the embodiments, the guide rail assembly includes a sliding guide rail, a sliding guide block, a bending plate, a driving screw, and a driving motor. Side guide blocks are respectively arranged on both sides of the upper end of the plating tank body. The side guide blocks are fixedly connected to the bending plates by bolts. The sliding guide rail is fixedly connected to the bending plates. A sliding rail groove is provided on the opposite side of the sliding guide rail. A driving screw is rotatably connected in the sliding rail groove. One end of the driving screw is fixedly connected to a linkage gear after passing through the sliding guide rail. The linkage gears are connected to each other through a chain belt. One group of driving screws is connected to the driving motor with the other end passing through the sliding guide rail. The driving motor is fixedly connected to the sliding guide rail on the opposite side. A sliding guide block is slidably connected in the sliding rail groove. The sliding guide block is threadedly connected to the driving screw.

[0009] In one of the embodiments, the adjustment component includes a connecting piece, a movable plate, a hydraulic telescopic rod, and a lifting plate. The upper ends of the movable plate are fixedly connected with connecting pieces on both sides, and the connecting pieces are respectively fixedly connected to the sliding guide blocks on the opposite sides. The movable plate is movably connected in the plating tank body, and the movable plate is embedded with a hydraulic telescopic rod, and the top rod end of the hydraulic telescopic rod is fixedly connected with a fixed frame, and the other end of the fixed frame is connected to the lifting plate. The lifting plate is movably connected to one side of the movable plate, and one side of the lifting plate is fixedly connected with two groups of symmetrical sliding rails, a sliding groove has been opened on the movable plate, and the sliding rail is slidably connected in the sliding groove, and a plurality of anode plates are fixedly connected to the other side of the lifting plate.

[0010] In one of the embodiments, the cathode assembly includes a mounting plate, a cathode plate, and hooks, a plurality of hooks are fixedly connected to the upper end of the mounting plate, a limiting groove is provided on one side of the upper end of the plating tank body, and the hooks are respectively hooked and connected to the limiting grooves, one side of the mounting plate is in contact with the inner wall of the plating tank body, and a plurality of cathode plates are fixedly connected to the other side of the mounting plate. In a specific embodiment of the present utility model, a workpiece hanger is fixedly connected to the cathode plate.

[0011] In one embodiment, the tank liquid circulation device includes a liquid outlet box, a reflux box, an infusion tube, a reflux tube, a purification box, an activated carbon filter, and a circulating water pump. A liquid outlet box is fixedly connected to one side of the plating tank body, and a plurality of liquid outlet tubes connected to the plating tank body are fixedly connected to the liquid outlet box. A liquid infusion tube is arranged on one side of the liquid outlet box, and a plurality of first conduits are connected between the liquid infusion tube and the liquid outlet box, and one end of the liquid infusion tube is connected to one side of the purification box.

[0012] A reflux box is fixedly connected to the other side of the plating tank body, and a plurality of liquid inlet pipes connected to the interior of the plating tank body are fixedly connected to the reflux box. A reflux pipe is provided on one side of the reflux box, and a plurality of second conduits are connected between the reflux pipe and the reflux box. One end of the reflux pipe is connected to a circulating water pump, and the circulating water pump is fixedly connected to one side of the purification box, and an activated carbon filter is fixedly connected to the middle of the purification box.

[0013] Beneficial effects of the utility model:

[0014] Improved deep plating capability: By optimizing the design of the electroplating tank, such as adjusting the tank structure, adding auxiliary electrodes of special shapes, or adopting an efficient current distribution strategy, the utility model can effectively improve the uniformity of current distribution in the deep holes or blind holes of the workpiece, so that the electroplating layer can also be formed evenly on the deep structure, ensuring the overall consistency and adhesion of the plating layer;

[0015] Improve electroplating quality: Uniform electroplating layer not only improves the appearance quality of the workpiece, but also enhances its corrosion resistance and wear resistance, extending the service life of the product, which is especially important for products requiring high durability, such as in aerospace, automotive manufacturing and precision engineering.

[0016] Strong adaptability: The electroplating tank device of the utility model can be adjusted according to different workpiece shapes and sizes, providing greater flexibility, which enables it to be applied to electroplating needs of various complexities, and is particularly suitable for special workpieces that are difficult to process with standard electroplating processes;

[0017] Improved production efficiency: Due to the improvement of the quality of the electroplated layer, the subsequent trimming and rework processes are reduced, thereby reducing production costs and improving production efficiency. At the same time, the improved electroplating tank device may also reduce the time required for electroplating, further improving production throughput;

[0018] In summary, the electroplating tank device of the utility model not only solves the shortcomings of traditional electroplating technology in processing workpieces of complex shapes, but also improves the overall quality of the electroplating layer and meets the needs of modern industry for precision and high-quality electroplating. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the disassembly and assembly structure of the guide rail assembly of the utility model;

[0021] Figure 3 This is a schematic diagram of the disassembly and assembly structure of the adjustment component of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the cathode assembly of the utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the tank liquid circulation device of the utility model.

[0024] In the figure: 1 plating tank body, 2 guide rail assembly, 3 anode plate, 4 cathode assembly, 5 tank liquid circulation device, 6 adjustment assembly, 101 sliding rail, 102 sliding guide block, 103 bending plate, 104 driving screw, 105 driving motor, 106 side guide block, 107 linkage gear, 201 connecting piece, 202 movable plate, 203 hydraulic telescopic rod, 204 lifting plate, 205 fixing frame, 206 sliding rail, 207 sliding tank, 301 mounting plate, 302 cathode plate, 303 hook, 401 liquid outlet box, 402 reflux box, 403 infusion tube, 404 reflux tube, 405 purification box, 406 activated carbon filter, 407 circulating water pump, 408 liquid outlet tube, 409 first conduit, 410 liquid inlet tube, 411 second conduit. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-5, an electroplating tank device for improving deep plating ability, comprising a plating tank body 1, a guide rail assembly 2, an anode assembly, a cathode assembly 4, and a tank liquid circulation device 5. The plating tank body 1 is made of corrosion-resistant materials, such as stainless steel or plastic, to carry various chemical solutions used in electroplating. The edges of the upper end of the plating tank body 1 are fixedly connected with the guide rail assemblies 2, and an adjustment assembly 6 is fixedly installed between the two groups of guide rail assemblies 2. The adjustment assembly 6 can slide relatively along the guide rail assembly 2. The adjustment assembly 6 is slidably connected in the plating tank body 1. The anode assembly is fixedly connected to the adjustment assembly 6. The anode assembly can move up and down through the adjustment assembly 6. The insertion depth of the anode can be adjusted according to the depth of the workpiece to achieve uniform distribution of current density. The anode assembly is composed of a plurality of anode plates 3. The cathode assembly 4 is arranged on the inner wall of the plating tank body 1 opposite to the anode assembly. The two sides of the plating tank body 1 are connected with tank liquid circulation devices 5. The tank liquid circulation devices 5 are responsible for the circulation and filtration of the electroplating solution to ensure the uniformity and cleanliness of the tank liquid and improve the quality of electroplating.

[0027] In one embodiment, the guide rail assembly 2 includes a sliding rail 101, a sliding guide block 102, a bending plate 103, a driving screw 104, and a driving motor 105. Side guide blocks 106 are respectively arranged on both sides of the upper end of the plating tank body 1. The side guide block 106 is fixedly connected to the bending plate 103 by bolts. The sliding rail 101 is fixedly connected to the bending plate 103. A sliding rail groove is opened on the opposite side of the sliding rail 101. The driving screw 104 is rotatably connected in the sliding rail groove. One end of the driving screw 104 passes through the sliding rail 101 and is fixedly connected to a linkage gear 107. The linkage gears 107 are mutually connected through a chain belt. The other end of a group of driving screw rods 104 passes through the sliding rail 101 and is connected to the driving motor 105. The driving motor 105 is fixedly connected to the sliding rail 101 on the opposite side. A sliding guide block 102 is slidably connected in the sliding rail groove. The sliding guide block 102 is threadedly connected to the driving screw rod 104. When in use, the driving motor 105 drives one group of driving screw rods 104 to rotate, and the driving screw rods 104 achieve synchronous rotation through the linkage gear 107. The driving screw rods 104 drive the sliding blocks to move forward and backward respectively, thereby driving the adjustment component 6 to move relative to each other through the sliding blocks, which is used to adjust the relative distance between the anode plate 3 and the cathode plate 302.

[0028] In one embodiment, the adjustment component 6 includes a connecting piece 201, a movable plate 202, a hydraulic telescopic rod 203, and a lifting plate 204. The connecting pieces 201 are fixedly connected to both sides of the upper end of the movable plate 202. The connecting pieces 201 are respectively fixedly connected to the sliding guide blocks 102 on the opposite side. The movable plate 202 is movably connected in the plating tank body 1. The hydraulic telescopic rod 203 is embedded and connected to the movable plate 202. The end of the top rod of the hydraulic telescopic rod 203 is fixedly connected to a fixed frame 205. The other end of the fixed frame 205 is connected to the lifting plate 204. The lifting plate 204 is movably connected to one side of the movable plate 202. Two sets of symmetrical sliding rails 206 are fixedly connected to one side of the lifting plate 204. A sliding groove 206 is provided on the movable plate 202. 7. The sliding rail 206 is slidably connected in the sliding groove 207. A plurality of anode plates 3 are fixedly connected to the other side of the lifting plate 204. When in use, the connection between the movable plate 202 and the guide rail assembly 2 can be achieved through the connecting piece 201, and then the movable plate 202 is driven to move relatively in the plating tank body 1 through the guide rail assembly 2. The hydraulic telescopic rod 203 is fixed on the movable plate 202 and can be extended and retracted through hydraulic pressure, thereby pushing the fixed frame 205 fixed at the end of its top rod to realize the up and down movement of the lifting plate 204. A plurality of anode plates 3 are fixedly connected to the lifting plate 204. The anode plates 3 move with the movement of the lifting plate 204, so that the insertion depth of the anode plates 3 is adjusted according to the process requirements to achieve uniform distribution of current density.

[0029] In one of the embodiments, the cathode assembly 4 includes a mounting plate 301, a cathode plate 302, and a hook 303. A plurality of hooks 303 are fixedly connected to the upper end of the mounting plate 301. A limiting groove is provided on one side of the upper end of the plating tank body 1. The hooks 303 are respectively hooked and connected to the limiting grooves. One side of the mounting plate 301 is in contact with the inner wall of the plating tank body 1. A plurality of cathode plates 302 are fixedly connected to the other side of the mounting plate 301. The mounting plate 301 can be suspended and connected to one side of the inner wall of the plating tank body 1 through the hook 303 connected to the upper end. A plurality of cathode plates 302 are fixedly connected to one side of the mounting plate 301 to form a current path with the anode plate 3, so that an electroplating reaction occurs on the surface of the workpiece. A limiting groove is provided on one side of the upper end of the plating tank body 1 to accommodate and position the hook 303. The design of the limiting groove ensures that the hook 303 can be easily installed and disassembled, while keeping the hook 303 fixed during the electroplating process to prevent the cathode assembly 4 from moving or falling off.

[0030] In one embodiment, the tank liquid circulation device 5 includes a liquid outlet box 401, a reflux box 402, an infusion tube 403, a reflux tube 404, a purification box 405, an activated carbon filter 406, and a circulating water pump 407. The liquid outlet box 401 is fixedly connected to one side of the plating tank body 1, and a plurality of liquid outlet tubes 408 connected to the plating tank body 1 are fixedly connected to the liquid outlet box 401. A liquid infusion tube 403 is provided on one side of the liquid outlet box 401, and a liquid infusion tube 403 is connected to the liquid outlet box 401. A plurality of first conduits 409, one end of the infusion tube 403 is connected to one side of the purification box 405; a reflux box 402 is fixedly connected to the other side of the plating tank body 1, and a plurality of liquid inlet tubes 410 connected to the inside of the plating tank body 1 are fixedly connected to the reflux box 402, a reflux pipe 404 is arranged on one side of the reflux box 402, and a plurality of second conduits 411 are connected between the reflux pipe 404 and the reflux box 402, and one end of the reflux pipe 404 is connected to the circulating water pump 407, and the circulating water pump 407 It is fixedly connected to one side of the purification box 405, and an activated carbon filter 406 is fixedly connected to the middle of the purification box 405. When the electroplating process is carried out, the plating liquid in the purification box 405 can be introduced into the reflux pipe 404 through the circulating water pump 407, and then enters the reflux box 402 along the reflux pipe 404, and then flows back to the plating tank body 1 through the liquid inlet pipe 410. At the same time, the plating liquid in the plating tank body 1 enters the liquid outlet box 401 through the liquid outlet pipe 408, and then enters the purification box 405 along the infusion pipe 403 under the action of negative pressure. The plating liquid entering the purification box 405 absorbs organic matter and some heavy metals in the plating liquid when passing through the activated carbon filter 406, thereby improving the purity and quality of the plating liquid, and is finally extracted by the circulating water pump 407 to form a cycle in sequence. The circulation system can continuously purify and recycle the plating liquid, which not only improves the resource utilization efficiency, but also helps to maintain the quality and stability of the plating liquid, thereby ensuring the quality and consistency of metal deposition during the electroplating process.

[0031] The working principle of the utility model is as follows: when in use, at the beginning of the electroplating process, the workpiece to be electroplated is first hung on the cathode plate 302 of the cathode assembly 4, and then the circulating water pump 407 in the tank liquid circulation device 5 is started, so that the plating liquid is sent from the purification box 405 to the plating tank body 1 through the liquid infusion pipe 403, the liquid outlet box 401 and the liquid outlet pipe 408, and returns to the purification box 405 through the liquid inlet pipe 410, the reflux box 402 and the reflux pipe 404 inside the plating tank body 1, forming a closed circulation system. During the circulation process, the plating liquid will be continuously filtered through the activated carbon filter 406 to remove organic matter and some heavy metal impurities therein, so as to ensure the purity and quality of the plating liquid and maintain the uniformity and cleanliness of the solution;

[0032] At the same time, according to the specific size and electroplating requirements of the workpiece, the operator can control the rotation of the driving screw 104 through the driving motor 105, and the driving screw 104 realizes synchronous rotation through the linkage gear 107 and the chain belt, thereby driving the sliding guide block 102 to move forward and backward along the sliding guide rail 101. The movement of the sliding guide block 102 will directly drive the anode plate 3 fixed on the adjustment component 6, and then adjust the relative distance between the anode plate 3 and the cathode plate 302 to adapt to workpieces of different sizes and ensure uniform distribution of current density;

[0033] When the insertion depth of the anode plate 3 needs to be adjusted, the operator can control the hydraulic telescopic rod 203 connected to the adjustment component 6 to extend and retract. The hydraulic telescopic rod 203 pushes the lifting plate 204 to achieve the up and down movement of the anode plate 3. By accurately controlling the extension and retraction degree of the hydraulic telescopic rod 203, the position of the anode plate 3 can be adjusted according to the process requirements to ensure the uniformity and efficiency of the electroplating process.

[0034] During the electroplating process, the current will flow from the anode plate 3 through the electroplating solution to the workpiece on the cathode plate 302, causing an electroplating reaction on the surface of the workpiece, thereby depositing the required metal layer on the surface of the workpiece. During the electroplating process, the tank liquid circulation device 5 continues to work to ensure the stability and uniformity of the electroplating solution, thereby ensuring the quality and consistency of the electroplating layer;

[0035] Finally, when the electroplating process is completed, the circulating water pump 407 and the drive motor 105 are turned off, and the plated workpiece is removed from the cathode plate 302 for subsequent cleaning and processing. This electroplating tank device with improved deep plating capability achieves high efficiency and high quality of the electroplating process through precise adjustment of the position of the anode plate 3 and the electroplating solution circulation and filtration system, and is suitable for various complex electroplating processes that require precise control of current density and electroplating solution quality.

[0036] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0037] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An electroplating tank device for improving deep plating capability, comprising a plating tank body (1), a guide rail assembly (2), an anode assembly, a cathode assembly (4), and a tank liquid circulation device (5), characterized in that: The upper side edges of the plating tank body (1) are respectively fixedly connected with guide rail assemblies (2); an adjustment assembly (6) is fixedly installed between the two groups of guide rail assemblies (2); the adjustment assembly (6) is slidably connected in the plating tank body (1); an anode assembly is fixedly connected to the adjustment assembly (6); the anode assembly is composed of a plurality of anode plates (3); a cathode assembly (4) is arranged on the inner wall of the plating tank body (1) opposite to the anode assembly; and a tank liquid circulation device (5) is connected to the two sides of the plating tank body (1); The adjustment assembly (6) comprises a connecting piece (201), a movable plate (202), a hydraulic telescopic rod (203), and a lifting plate (204); the connecting pieces (201) are fixedly connected to both sides of the upper end of the movable plate (202); the connecting pieces (201) are respectively fixedly connected to the slide guide blocks (102) on the opposite sides; the movable plate (202) is movably connected in the plating tank body (1); the hydraulic telescopic rod (203) is embedded and fixedly connected to the movable plate (202); the top rod end of the hydraulic telescopic rod (203) A fixed frame (205) is fixedly connected, the other end of the fixed frame (205) is connected to a lifting plate (204), the lifting plate (204) is movably connected to one side of the movable plate (202), one side of the lifting plate (204) is fixedly connected to two sets of symmetrical sliding rails (206), the movable plate (202) is provided with a sliding groove (207), the sliding rail (206) is slidably connected in the sliding groove (207), and the other side of the lifting plate (204) is fixedly connected to a plurality of anode plates (3).

2. The electroplating tank device for improving the deep plating ability according to claim 1, characterized in that: The guide rail assembly (2) comprises a slide rail (101), a slide guide block (102), a bending plate (103), a driving screw (104), and a driving motor (105); side guide blocks (106) are respectively arranged on both sides of the upper end of the plating tank body (1); the bending plate (103) is fixedly connected to the side guide block (106) by bolts; the slide rail (101) is fixedly connected to the bending plate (103); a slide rail groove is provided on the opposite side of the slide rail (101); the driving screw (104) is rotatably connected in the slide rail groove One end of the driving screw rod (104) passes through the guide rail (101) and is fixedly connected to a linkage gear (107). The linkage gears (107) are connected to each other through a chain belt. The other end of one group of the driving screw rods (104) passes through the guide rail (101) and is connected to a driving motor (105). The driving motor (105) is fixedly connected to the guide rail (101) on the opposite side. A sliding guide block (102) is slidably connected in the guide rail groove. The sliding guide block (102) is threadedly connected to the driving screw rod (104).

3. The electroplating tank device for improving the deep plating ability according to claim 1, characterized in that: The cathode assembly (4) comprises a mounting plate (301), a cathode plate (302), and hooks (303); a plurality of hooks (303) are fixedly connected to the upper end of the mounting plate (301); a limiting groove is provided on one side of the upper end of the plating tank body (1); the hooks (303) are respectively hooked and connected to the limiting groove; one side of the mounting plate (301) is in contact with the inner wall of the plating tank body (1); and the other side of the mounting plate (301) is fixedly connected to the plurality of cathode plates (302).

4. The electroplating tank device for improving the deep plating ability according to claim 1, characterized in that: The tank liquid circulation device (5) comprises a liquid outlet box (401), a reflux box (402), a liquid infusion tube (403), a reflux tube (404), a purification box (405), an activated carbon filter (406), and a circulating water pump (407); one side of the plating tank body (1) is fixedly connected to the liquid outlet box (401); a plurality of liquid outlet tubes (408) in communication with the plating tank body (1) are fixedly connected to the liquid outlet box (401); a liquid infusion tube (403) is provided on one side of the liquid outlet box (401); a plurality of first conduits (409) are connected between the liquid infusion tube (403) and the liquid outlet box (401); one end of the liquid infusion tube (403) is connected to one side of the purification box (405); A reflux box (402) is fixedly connected to the other side of the plating tank body (1), and a plurality of liquid inlet pipes (410) that are in communication with the interior of the plating tank body (1) are fixedly connected to the reflux box (402). A reflux pipe (404) is provided on one side of the reflux box (402), and a plurality of second conduits (411) are connected between the reflux pipe (404) and the reflux box (402). One end of the reflux pipe (404) is connected to a circulating water pump (407), and the circulating water pump (407) is fixedly connected to one side of a purification box (405). An activated carbon filter (406) is fixedly connected to the middle of the purification box (405).

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