Anode movable jig in plating bath for electroplating

Abstract

The utility model discloses a kind of movable jigs in plating bath anode for electroplating, including two oppositely arranged anode copper bars, L-shaped sliding baseplate is symmetrically arranged on the outer side of anode copper bar two ends, L-shaped sliding baseplate is connected L-shaped slidable copper bar, left anode and right anode are respectively hung on the copper bar connected with left and right two groups of L-shaped slidable copper bar, and two anode copper bars are reinforced by U-shaped belt rubber-coated support;L-shaped slidable copper bar is provided with waist groove, and anode copper bar outer wall is provided with 1mm interval scale line.The utility model can accurately adjust the distance from anode to product through waist groove and scale line, adapt to different specifications products, improve plating layer accumulation, film thickness uneven problem;Adopt module combination design, dismounting and maintenance are convenient, U-shaped belt rubber-coated support guarantees structure firm and power safety, can improve electroplating quality and production efficiency, applicable to various electroplating scenes.

Description

Technical Field

[0001] This utility model belongs to the field of electroplating technology, specifically relating to a movable anode fixture for electroplating tanks. Background Technology

[0002] Chromium plating is a process that deposits a chromium layer on a metal surface through an electrochemical reaction. It is primarily used to improve the conductivity, corrosion resistance, and wear resistance of metals, while also imparting a luster. The chromium plating process mainly relies on the electrochemical reaction of chromium ions. In the electrolyte, the charge carried by the chromium ions causes them to deposit on the cathode surface, forming a dense chromium layer. The electroplating process requires a high degree of uniformity of discharge on the product surface, and this uniformity is greatly influenced by the distance between the anode plate and the product surface.

[0003] In existing processes, the two anode plates in the plating tank are fixed to the energized copper busbars and cannot be moved. However, the products being electroplated are diverse, including pin-shaped, flat, square-cavity, and cylindrical cavities. With the anode plates fixed, uneven current density occurs during electroplating, leading to plating defects such as plating buildup in corners, uneven film thickness, uneven gloss, and failure to plating within the grooves, thus affecting product quality.

[0004] Furthermore, with the rapid development of compression molds, the size of products is gradually increasing. The original fixed anode plates can no longer meet the coating thickness technical requirements of large and complex cavity products. Adjustable distance between the anode plate and the product would be a good direction for improvement. Summary of the Invention

[0005] The purpose of this invention is to provide a movable anode fixture for electroplating tanks to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a movable anode fixture in an electroplating tank, comprising two oppositely arranged anode copper bars, and L-shaped sliding base plates symmetrically arranged on the outer sides of both ends of the two anode copper bars as horizontal moving base plates for the sliding mechanism;

[0007] Each of the L-shaped sliding substrates is connected to an L-shaped sliding copper busbar, and the two ends of the L-shaped sliding copper busbar are respectively located on the inner and outer sides of the anode copper busbar;

[0008] A left anode and a right anode are suspended between the two sets of L-shaped sliding copper busbars on the same side, respectively;

[0009] The two anode copper busbars are reinforced together by a bracket;

[0010] The L-shaped sliding substrate has at least two fixing through holes on both its horizontal and vertical sections. The through holes in the vertical section are used to connect and fix the anode copper busbar with studs, and the through holes in the horizontal section are used to connect the L-shaped sliding copper busbar.

[0011] Preferably, the L-shaped sliding copper busbar is provided with a waist groove, which is a long strip-shaped through groove with its length direction perpendicular to the length direction of the anode copper busbar, and the inner wall of the waist groove is provided with anti-slip texture; the L-shaped sliding copper busbar is connected to the L-shaped sliding base plate by fastening bolts passing through the waist groove, and the position can be adjusted along the waist groove by loosening the bolts.

[0012] Preferably, the bracket is a U-shaped bracket with rubber coating, and the outer surface of the horizontal section of the bracket is wrapped with an insulating rubber layer with a thickness of 1-3mm.

[0013] Preferably, the upward surface of the L-shaped sliding copper busbar is provided with scale lines, which are evenly distributed inward along the length direction starting from the outer end face of the L-shaped sliding copper busbar, with an interval of 1mm between adjacent scale lines. This is used to assist in determining the adjustment distance of the L-shaped sliding copper busbar.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] 1. This utility model is applicable to the processing of electroplating products of different specifications, types and technical requirements. It can be used in common in actual production, eliminating the limitations of the original fixed anode.

[0016] 2. This utility model can more rationally and accurately control the distance between the anode plate and the product, set a more optimized electroplating process, and improve quality.

[0017] 3. Improves plating buildup at product corners during electroplating, avoids uneven discharge leading to higher plating edges at product corners, and makes film thickness more uniform.

[0018] 4. The L-shaped movable copper busbar that slides left and right is equipped with a waist-shaped groove, which can slide left and right according to the electroplating technical requirements to effectively and flexibly adjust the anode plate.

[0019] 5. The modular design makes it easy to install, disassemble, and replace components, and facilitates maintenance; the maintenance cost of each part is low, which improves production efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] In the figure: anode copper busbar-1, L-shaped sliding substrate-2, L-shaped sliding copper busbar-3, left anode-4, right anode-5, bracket-6, waist groove-31. Detailed Implementation

[0022] 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.

[0023] like Figure 1 This invention illustrates a specific embodiment of a movable anode fixture for an electroplating tank according to the present invention:

[0024] Installation steps: First, attach the vertical section of the L-shaped sliding base plate 2 to the outer sides of both ends of the anode copper busbar 1, and fix it to the anode copper busbar 1 by passing studs through the through holes in the vertical section of the base plate; next, attach the L-shaped sliding copper busbar 3 to the horizontal section of the L-shaped sliding base plate 2, and initially fix it by passing fastening bolts through the waist groove 31 (do not tighten yet); then install the left anode 4 and the right anode 5 on the copper busbar between the L-shaped sliding copper busbars 3 on the same side, ensuring that the conductive pad 42 is in close contact with the copper busbar; finally, attach the U-shaped adhesive-coated bracket 6 to the anode copper busbar 1 and fix it by studs to complete the overall installation.

[0025] Adjustment steps: When electroplating products of different specifications, first loosen the fastening bolts on the L-shaped sliding copper busbar 3, and push the sliding copper busbar to move the anode to the target position according to the scale lines on the upper surface of the L-shaped sliding copper busbar 3 (for example, when electroplating PIN products with a diameter of 3mm, adjust the distance between the anode and the product to 10mm; when electroplating square cavity products with a side length of 100mm, adjust the distance to 15mm); after adjustment, tighten the fastening bolts to ensure that the sliding copper busbar is fixed, and then start the electroplating operation.

[0026] Maintenance steps: Regularly check the condition of each component. If electrolyte residue is found in the groove 31 of the L-shaped sliding copper busbar 3, it can be wiped clean with a dry cotton cloth. When there is obvious wear on the surface of the anode plate (such as a reduction in thickness of more than 1mm), the hook can be removed directly and a new anode can be replaced. If the rubber coating of the bracket 6 is damaged, the bracket should be replaced in time to avoid affecting the insulation performance.

[0027] The applicant further declares that while the above embodiments illustrate the implementation method and apparatus structure of this utility model, this utility model is not limited to the above-described embodiments, meaning that this utility model must rely on the above methods and structures to be implemented. Those skilled in the art should understand that any improvements to this utility model, equivalent substitutions for the selected implementation methods, additions of steps, and selection of specific methods all fall within the protection and disclosure scope of this utility model.

[0028] This utility model is not limited to the above-described embodiments. All methods that use similar structures and methods to achieve the purpose of this utility model are within the protection scope of this utility model.

Claims

1. A movable anode fixture for an electroplating tank, comprising two opposing copper anode bars (1), characterized in that: L-shaped sliding base plates (2) are symmetrically provided on the outer sides of both ends of the two anode copper busbars (1) as horizontal moving base plates of the sliding mechanism; Each of the L-shaped sliding substrates (2) is connected to an L-shaped sliding copper busbar (3), and the two ends of the L-shaped sliding copper busbar (3) are located on the inner and outer sides of the anode copper busbar (1), respectively. A left anode (4) and a right anode (5) are suspended between the two sets of L-shaped sliding copper busbars (3) on the same side. The two anode copper busbars (1) are reinforced together by a bracket (6); The L-shaped sliding substrate (2) is provided with at least two fixed through holes on both the horizontal and vertical sections. The through holes in the vertical section are used to connect and fix the anode copper busbar (1) with studs, and the through holes in the horizontal section are used to connect the L-shaped sliding copper busbar (3).

2. The movable anode fixture for an electroplating tank according to claim 1, characterized in that: A waist groove (31) is provided on the L-shaped sliding copper busbar (3). The waist groove (31) is a long strip through groove with its length direction perpendicular to the length direction of the anode copper busbar (1). The inner wall of the waist groove (31) is provided with anti-slip texture. The L-shaped sliding copper busbar (3) is connected to the L-shaped sliding base plate (2) by fastening bolts passing through the waist groove (31). The position can be adjusted along the waist groove (31) by loosening the bolts.

3. The movable anode fixture for an electroplating tank according to claim 1, characterized in that: The bracket (6) is a U-shaped bracket with rubber coating. The outer surface of the horizontal section of the bracket (6) is wrapped with an insulating rubber layer with a thickness of 1-3mm.

4. The movable anode fixture for an electroplating tank according to claim 1, characterized in that: The upward surface of the L-shaped sliding copper busbar (3) is provided with scale lines. The scale lines are evenly distributed inward along the length direction starting from the outer end face of the L-shaped sliding copper busbar (3), and the distance between adjacent scales is 1mm.

Images