Electroplating uniformity auxiliary tool with shunting function

By designing electroplating uniformity auxiliary tooling with diversion function, the problem of uneven electroplating of rack-plated products is solved, the uniform distribution of electroplating liquid is achieved, the electroplating quality and efficiency are improved, and the production cost is reduced.

CN223373277UActive Publication Date: 2025-09-23ZHENJIANG JINXING SURFACE ENG TECH CO LTD
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Patent Information

Application Number
CN202422648248.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-31
Publication Date
2025-09-23
Estimated Expiration
2034-10-31

AI Technical Summary

Technical Problem

The gold plating thickness of the rack-plated product is relatively thick near the current input point, and relatively thin in the middle part, resulting in unevenness, affecting the product appearance and performance, and increasing production costs.

Method used

An electroplating uniformity auxiliary tooling with diversion function is designed, including a shielding plate and a hanger. The shielding plate surface is provided with a diversion area and through holes. The anode plate is located in the electroplating tank. The hanger is made of stainless steel to ensure uniform distribution of the electroplating solution.

Benefits of technology

Through the design of diversion areas and through-holes, the flow path of the plating solution is optimized, the uniformity and efficiency of electroplating are improved, the concentration or loss of local plating solution is reduced, and the quality and safety of electroplating are improved.

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Abstract

The electroplating uniformity auxiliary tool with the shunting function comprises a plurality of shielding plates and a hanging tool, a plurality of through holes are formed in the surfaces of the shielding plates, the shielding plates are placed in front of an anode plate, the anode plate is placed in an electroplating bath, electroplating liquid is arranged in the electroplating bath, the hanging tool is located in the electroplating liquid, and a plurality of through holes are formed in the surfaces of the shielding plates. A workpiece to be machined is hung on the hanging tool, a flow dividing area is arranged on the surface of the shielding plate, a square through hole is formed in the center of the flow dividing area, a plurality of round through holes are formed around the square through hole, the cross section of the square through hole is larger than that of the round through holes, the shielding plate is made of polypropylene, and the number of the anode plates is two. The two anode plates are respectively positioned in front of and behind the hanging tool, and the hanging tool is made of stainless steel.
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Description

Technical Field

[0001] The utility model relates to an electroplating uniformity auxiliary tool with a diversion function. Background Art

[0002] During the gold plating process, a common problem is that products at the edge of the rack, being closer to the current input point, become areas of high current density, resulting in thicker gold plating in these areas. Conversely, products in the center of the rack experience uneven current distribution, resulting in significantly thinner gold plating, affecting the uniformity of the overall coating.

[0003] This uneven distribution of gold plating not only affects the product's appearance but can also lead to performance variations. To meet customers' stringent requirements for gold plating thickness, manufacturers are often forced to increase the overall gold plating thickness to ensure all products meet the specified standards. However, this practice undoubtedly increases production costs and results in unnecessary waste. Utility Model Content

[0004] The purpose of the utility model is to solve the above deficiencies in the prior art and to provide an electroplating uniformity auxiliary tool with a diversion function.

[0005] A plating uniformity auxiliary tool with a diversion function includes multiple shielding plates and hangers. The shielding plates are provided with multiple through holes on their surfaces. The shielding plates are placed in front of the anode plates. The anode plates are placed in the plating tank. The plating tank is provided with plating liquid. The hangers are located in the plating liquid, and the workpieces to be processed are hung on the hangers.

[0006] Furthermore, a diversion area is provided on the surface of the shielding plate, a square through hole is provided at the center of the diversion area, and a plurality of circular through holes are provided around the square through hole, and the cross section of the square through hole is larger than that of the circular through hole.

[0007] Furthermore, the shielding plate is made of polypropylene.

[0008] Furthermore, there are two anode plates, which are respectively located in front and at the rear of the hanger.

[0009] Furthermore, the hanger is made of stainless steel.

[0010] Furthermore, the hanger includes a frame with a hollow rectangular structure, the frame includes an upper rod, a lower rod, a left rod, and a right rod, a plurality of mounting rods are arranged in parallel between the left rod and the right rod, and a plurality of hooks are arranged on the mounting rods at intervals.

[0011] Furthermore, a connecting piece for hanging is provided above the upper rod, and the connecting piece includes a first connecting rod and a second connecting rod, one end of the first connecting rod and the second connecting rod is connected to the outer side surface of the upper rod, and the other end of the first connecting rod and the second connecting rod is provided with a hook, and a cross bar is provided between the rod bodies of the first connecting rod and the second connecting rod.

[0012] Beneficial effects: Compared with the prior art, the utility model has the following advantages:

[0013] By setting up the shielding plate and the through holes on its surface, especially the design of the diversion area (including square through holes and several circular through holes), the flow path of the electroplating solution can be optimized, so that the electroplating solution is more evenly distributed on the surface of the workpiece to be processed, thereby improving the uniformity of electroplating.

[0014] The setting of the diversion area enables the electroplating liquid to be effectively dispersed when passing through the shielding plate, avoiding the problem of excessive concentration or lack of electroplating liquid in local areas, and further improving the quality and efficiency of electroplating.

[0015] The shielding plate is made of polypropylene, which has good corrosion resistance and insulation properties. It can ensure that the electroplating effect will not be affected by chemical reactions with the electroplating solution during the electroplating process, while ensuring the safety of the operators.

[0016] Arranging two anode plates, one at the front and the other at the rear of the rack, can form a more uniform electric field distribution of the electroplating solution in the electroplating tank, thereby further improving the uniformity and efficiency of electroplating.

[0017] The stainless steel hanger offers excellent corrosion resistance and load-bearing capacity, meeting the requirements for supporting and securing workpieces during the electroplating process. The hanger's structural design (including the frame, mounting rods, and hooks) allows for convenient hanging and securing of workpieces, and the adjustable hook spacing accommodates workpieces of varying sizes and shapes.

[0018] The connecting parts (including the first connecting rod, the second connecting rod and the hanging buckle) arranged above the hanger enable the entire hanger to be conveniently hung above the electroplating tank or moved to other locations, which is convenient for operation and management. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the shielding plate;

[0020] Figure 2 It is a schematic diagram of the hanger;

[0021] In the figure, 1, square through hole, 2, circular through hole, 3, frame, 4, mounting rod, 5, hook, 6, first connecting rod, 7, second connecting rod, 8, cross bar, 9, hanging buckle. DETAILED DESCRIPTION

[0022] In order to deepen the understanding of the present invention, the present invention will be further described in detail below with reference to embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0023] like Figure 1-2 As shown, square through hole 1, circular through hole 2, frame 3, mounting rod 4, hook 5, first connecting rod 6, 7, second connecting rod 7, cross bar 8, hanging buckle 9;

[0024] A plating uniformity auxiliary tool with a diversion function includes multiple shielding plates and hangers. The shielding plates are provided with multiple through holes on their surfaces. The shielding plates are placed in front of the anode plates. The anode plates are placed in the plating tank. The plating tank is provided with plating liquid. The hangers are located in the plating liquid, and the workpieces to be processed are hung on the hangers.

[0025] In this embodiment, a diversion area is provided on the surface of the shielding plate. A square through hole 1 is provided at the center of the diversion area. A plurality of circular through holes 2 are provided around the square through hole 1. The cross section of the square through hole 1 is larger than that of the circular through hole 2.

[0026] In this embodiment, the shielding plate is made of polypropylene.

[0027] In this embodiment, there are two anode plates, which are located at the front and rear of the rack respectively.

[0028] In this embodiment, the hanger is made of stainless steel.

[0029] In this example, the hanger includes a frame 3 with a hollow rectangular structure, and the frame 3 includes an upper rod, a lower rod, a left rod, and a right rod. A plurality of mounting rods 4 are arranged in parallel and spaced apart between the left rod and the right rod, and a plurality of hooks 5 are arranged on the mounting rods 4 at intervals.

[0030] In this example, a connecting piece for hanging is provided above the upper rod, and the connecting piece includes a first connecting rod 6 and a second connecting rod 7. One end of the first connecting rod 6 and the second connecting rod 7 is connected to the outer side surface of the upper rod, and the other end of the first connecting rod 6 and the second connecting rod 7 is provided with a hook 9, and a cross bar 8 is provided between the rod bodies of the first connecting rod 6 and the second connecting rod 7.

[0031] Instructions: Ensure the plating tank is properly filled with plating solution. Place the shielding plate in front of the anode plate. The shielding plate is designed with a diversion area, consisting of a central square hole and several surrounding circular holes, to divert and evenly distribute the plating solution. Install the anode plate in the designated position within the plating tank. In this example, two anode plates are located in front and behind the rack to ensure uniform plating.

[0032] Hang the workpiece on the hanger. Made of stainless steel, the hanger is corrosion-resistant and stable. It's designed as a hollow rectangular frame consisting of an upper rod, a lower rod, a left rod, and a right rod. Multiple mounting rods are spaced parallel to each other between the left and right rods, and multiple hooks are spaced on the mounting rods to facilitate hanging the workpiece.

[0033] If necessary, the entire rack can be attached to a support structure above or on the side of the plating tank using the connector on the top of the rack. The connector includes a first connecting rod and a second connecting rod, one end of which is connected to the outer side of the upper rod and the other end is equipped with a hook. A crossbar is installed between the rods to increase stability.

[0034] The hanger holding the workpiece is completely immersed in the plating solution within the plating tank. The plating system is turned on, and the plating solution forms a current loop between the anode plate and the workpiece, beginning the plating process. The diversion area on the shield plate helps evenly distribute the plating solution in front of the anode plate, reducing unevenness during the plating process. The combination of square and circular through-holes allows for more effective plating solution diversion and uniform plating.

[0035] After plating is complete, shut down the plating equipment. Remove the rack from the plating bath and carefully remove the workpiece from the rack. Rinse and dry the workpiece before further processing or inspection.

[0036] Clean the plating tank and shielding plate to remove plating solution residue and impurities. Check the condition of the hangers and connectors to ensure they are intact and ready for the next use.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An electroplating uniformity auxiliary tool with a diversion function, characterized in that: It includes multiple shielding plates and hangers. The surface of the shielding plates is provided with multiple through holes. The shielding plates are placed in front of the anode plates. The anode plates are placed in the electroplating tank. The electroplating tank is provided with electroplating liquid. The hangers are located in the electroplating liquid, and the workpieces to be processed are hung on the hangers.

2. The electroplating uniformity auxiliary tool with diversion function according to claim 1, characterized in that: A diversion area is provided on the surface of the shielding plate. A square through hole is provided at the center of the diversion area. A plurality of circular through holes are provided around the square through hole. The cross section of the square through hole is larger than that of the circular through hole.

3. The electroplating uniformity auxiliary tool with diversion function according to claim 1, characterized in that: The shielding plate is made of polypropylene.

4. The electroplating uniformity auxiliary tool with diversion function according to claim 1, characterized in that: There are two anode plates, which are respectively located in front and rear of the hanger.

5. The electroplating uniformity auxiliary tool with diversion function according to claim 1, characterized in that: The hanger is made of stainless steel.

6. The electroplating uniformity auxiliary tool with diversion function according to claim 1, characterized in that: The hanger includes a frame with a hollow rectangular structure, the frame includes an upper rod, a lower rod, a left rod, and a right rod. A plurality of mounting rods are arranged in parallel between the left rod and the right rod, and a plurality of hooks are arranged on the mounting rods.

7. The electroplating uniformity auxiliary tool with diversion function according to claim 6, characterized in that: A connecting piece for hanging is provided above the upper rod, and the connecting piece includes a first connecting rod and a second connecting rod. One end of the first connecting rod and the second connecting rod is connected to the outer side surface of the upper rod, and the other end of the first connecting rod and the second connecting rod is provided with a hook, and a cross bar is provided between the rod bodies of the first connecting rod and the second connecting rod.