Hanging rack for improving electroplating uniformity

Abstract

The utility model relates to the technical field of electroplating processing, in particular to a hanger for improving electroplating uniformity. The hanging rack comprises a hanging rack body and a plurality of clamps arranged on the hanging rack body, conducting strips are arranged on the two sides of the hanging rack body, gaskets are arranged between the conducting strips and the hanging rack body, and a base plate is arranged in the middle of the hanging rack body; the hanger body comprises a fixing rod and a connecting rod, a conducting strip is arranged on the connecting rod, and a clamp is fixed on the fixing rod; the upper and lower ends of the conducting strip are provided with through holes, and the conducting strip and the connecting rod are fixedly connected through screws. According to the invention, the distribution of current in the hanger can be optimized, the problem of non-uniform current distribution is reduced, and the electroplating uniformity is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electroplating processing, in particular to a rack for improving electroplating uniformity. Background Art

[0002] In the precise and crucial manufacturing process of electroplating, the rack is not only an indispensable auxiliary equipment for carrying the workpiece to be plated, but also the cornerstone to ensure the efficient and high-quality completion of the electroplating process. The exquisiteness of its design is directly related to the electroplating efficiency and the quality of the coating, and is an important indicator to measure the advancement of electroplating technology.

[0003] The design of traditional racks is often limited by the technical cognition and the development level of materials science at that time, and there are many shortcomings. For example, the unreasonable design leads to the obstruction of the flow of the plating solution between the rack and the workpiece, making it difficult to form an ideal circulation and distribution, which not only affects the electroplating speed, but more importantly, causes the uneven distribution of the plating solution on the surface of the workpiece, which in turn causes the difference in current density. The uneven current distribution is the main source of uneven coating thickness and poor uniformity during the electroplating process. When the current is too concentrated in certain areas, the coating in that area will be too thick or even burnt; while in areas with sparse current, the coating may be too thin or even uncoated. This uneven coating not only seriously affects the appearance of the product and reduces its market competitiveness, but more importantly, it poses a potential threat to the durability, corrosion resistance and overall performance of the product. A Chinese patent with authorization announcement number CN211909317U discloses an electroplating device for high-frequency and high-density circuit board production, which can detect the circuit board falling on the hanger, but the above patent cannot effectively improve the uniformity of substrate electroplating, and therefore cannot better improve economic benefits in production. Utility Model Content

[0004] The technical problem to be solved by the utility model is: to overcome the shortcomings of the prior art and provide a rack for improving the uniformity of electroplating, which has a relatively simple structure and can improve the uniformity of electroplating of a substrate.

[0005] The technical solution of the utility model is:

[0006] A hanger for improving electroplating uniformity comprises a hanger body and a plurality of clips arranged on the hanger body, conductive sheets are arranged on both sides of the hanger body, a gasket is slidably arranged between the conductive sheet and the hanger body, and a base plate is arranged in the middle of the hanger body.

[0007] Preferably, the bracket body includes a fixed rod and a connecting rod, the connecting rod is provided with a sliding groove, the bottom of the sliding groove is provided with a fixed groove, a sliding block is slidably arranged in the sliding groove, one end of the sliding block is fixedly connected to the gasket, and the other end of the sliding block is fitted with the sliding groove.

[0008] Preferably, the sliding block is fixed to the connecting rod by a fastening screw, and the fastening screw passes through a fixing groove and is connected to the sliding block.

[0009] Preferably, through holes are provided at the upper and lower ends of the conductive sheet, and the conductive sheet and the connecting rod are fixedly connected by fastening screws.

[0010] Preferably, the bracket body is made of metal, and the outer periphery of the bracket body is wrapped with insulating glue.

[0011] Preferably, the rack body does not contact the substrate.

[0012] Preferably, the conductive sheet is not wrapped with insulating glue.

[0013] Preferably, conductors are provided on both sides of the bottom of the fixing rod, and the conductors are connected to the conductive sheet through wires.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] By setting the conductive sheet and the gasket, the distribution of current in the rack is optimized, the problem of uneven current distribution is reduced, and the uniformity of electroplating is improved; by setting the sliding groove and the sliding block, the position of the gasket is conveniently adjusted, so that conductive sheets of different sizes can be fixed for electroplating substrates of different specifications; the design of the rack body not contacting the substrate promotes the free flow of the electroplating solution and avoids uneven electroplating due to liquid accumulation; the use of insulating glue enhances the safety of the rack, and the exposed design of the conductive sheet ensures the electroplating efficiency; the rack has a simple structure, is easy to assemble and maintain, and reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] Figure 2 It is a structural schematic diagram of a connecting rod of the utility model.

[0019] Figure 3 It is a schematic diagram of the connection structure of the gasket of the utility model.

[0020] Figure 4 It is a structural schematic diagram of the conductive sheet of the utility model.

[0021] In the figure: 1. clip; 2. conductive sheet; 3. gasket; 4. fixing rod; 5. connecting rod; 6. through hole; 7. substrate; 8. sliding groove; 9. fixing groove; 10. conductor; 11. sliding block; 12. fastening screw. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0023] Example

[0024] like Figure 1-Figure 4 As shown, this embodiment provides a rack for improving electroplating uniformity, a rack body and a plurality of clips 1 arranged on the rack body, conductive sheets 2 are arranged on both sides of the rack body, and a gasket 3 is slidably arranged between the conductive sheet 2 and the rack body to optimize the current conduction path and reduce the contact resistance, and a substrate 7 is arranged in the middle of the rack body. The conductive sheet 2 is used to introduce current into the rack system, and the clip 1 on the fixing rod 4 is used to clamp the substrate 7 to ensure that the position of the substrate 7 is stable during the electroplating process.

[0025] Preferably, the rack body includes a fixed rod 4 and a connecting rod 5, a sliding groove 8 is provided on the connecting rod 5, a fixed groove 9 is provided at the bottom of the sliding groove 8, a sliding block 11 is slidably provided in the sliding groove 8, one end of the sliding block 11 is fixedly connected to the gasket 3, and the other end of the sliding block 11 is fitted with the sliding groove 8. By providing the sliding groove 8, when electroplating different substrates 7, the position of the gasket 3 can be further adjusted by adjusting the position of the sliding block 11, so as to facilitate the installation of matching conductive sheets 2 according to the electroplating needs of different substrates 7.

[0026] Preferably, the sliding block 11 is fixed to the connecting rod 5 by a fastening screw 12, and the fastening screw 12 passes through the fixing slot 9 and is connected to the sliding block 11. The nut size of the fastening screw 12 is larger than the width of the fixing slot 9. After the sliding block 11 is adjusted to a suitable position, the sliding block 11 can be fixed at a desired position by screwing the fastening screw 12, so that the electroplating work of substrates 7 of different specifications is convenient.

[0027] Preferably, the conductive sheet 2 is provided with through holes 6 at the upper and lower ends, and the conductive sheet 2 and the connecting rod 5 are fixedly connected by screws. The through holes 6 are provided to facilitate a firm and detachable fixed connection with the connecting rod 5 by screws, which is convenient for maintenance and replacement.

[0028] Preferably, the bracket body is made of metal, and the outer periphery of the bracket body is wrapped with insulating glue.

[0029] Preferably, the rack body does not contact the substrate 7. This design helps the free flow of the electroplating solution and reduces the uneven electroplating phenomenon caused by liquid accumulation.

[0030] Preferably, the conductive sheet 2 is not wrapped with insulating glue to ensure current conduction efficiency.

[0031] Preferably, conductors 10 are provided on both sides of the bottom of the fixing rod 4, and are connected to the conductive sheet 2 through wires. The conductors 10 are tightly connected to the conductive sheet 2 through wires to ensure that the current can be evenly and efficiently transmitted to the conductive sheet 2.

[0032] Working principle:

[0033] The bracket body serves as a supporting structure, and the clip 1 installed thereon is used to fix the substrate 7 to ensure that the substrate 7 is stably suspended in the electroplating solution; the conductive sheets 2 arranged on both sides of the bracket body are connected to the bracket body through the gasket 3, which optimizes the current path, reduces the contact resistance, and enables the current to be more evenly distributed to each workpiece; the conductive sheet 2 is detachably connected to the connecting rod 5 by screws, which is convenient for maintenance and replacement; the connecting rod 5 is provided with a sliding groove 8, and the sliding block 11 can adjust the position of the gasket 3 by sliding in the sliding groove 8, so as to facilitate the replacement of conductive sheets 2 of different sizes and facilitate the electroplating of substrates 7 of different specifications. The bracket body is made of metal material to ensure good conductivity and structural strength, while the insulating glue on the periphery effectively prevents current leakage and enhances safety. A certain gap is maintained between the bracket body and the substrate 7, which is conducive to the free flow of the electroplating solution and reduces the uneven electroplating caused by the accumulation of liquid. The surface of the conductive sheet 2 remains exposed to ensure that the current is smoothly transmitted to the workpiece, thereby ensuring the electroplating efficiency and quality. Through these designs, the rack can significantly improve the uniformity of electroplating and enhance the quality and reliability of electroplated products.

[0034] Although the utility model is described in detail by referring to the accompanying drawings and in combination with the preferred embodiments, the utility model is not limited thereto. Without departing from the spirit and essence of the utility model, ordinary technicians in the field can make various equivalent modifications or substitutions to the embodiments of the utility model, and these modifications or substitutions should be within the scope of the utility model / any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model shall be based on the protection scope described in the claims.

Claims

1. A rack for improving electroplating uniformity, characterized in that: It comprises a hanger body and a plurality of clips (1) arranged on the hanger body, conductive sheets (2) are arranged on both sides of the hanger body, a gasket (3) is slidably arranged between the conductive sheet (2) and the hanger body, and a base plate (7) is arranged in the middle of the hanger body.

2. A rack for improving electroplating uniformity as claimed in claim 1, characterized in that: The hanger body comprises a fixed rod (4) and a connecting rod (5), a sliding groove (8) is provided on the connecting rod (5), a fixed groove (9) is provided at the bottom of the sliding groove (8), a sliding block (11) is slidably arranged in the sliding groove (8), one end of the sliding block (11) is fixedly connected to the gasket (3), and the other end of the sliding block (11) is in contact with the sliding groove (8).

3. A rack for improving electroplating uniformity as claimed in claim 2, characterized in that: The sliding block (11) is fixed on the connecting rod (5) by means of a fastening screw (12), and the fastening screw (12) passes through the fixing groove (9) and is connected to the sliding block (11).

4. A rack for improving electroplating uniformity as claimed in claim 1, characterized in that: The conductive sheet (2) is provided with through holes (6) at the upper and lower ends, and the conductive sheet (2) and the connecting rod (5) are fixedly connected by means of fastening screws (12).

5. A rack for improving electroplating uniformity as claimed in claim 1, characterized in that: The hanger body is made of metal, and the outer periphery of the hanger body is wrapped with insulating glue.

6. A rack for improving electroplating uniformity as claimed in claim 1, characterized in that: The rack body does not contact the base plate (7).

7. A rack for improving electroplating uniformity as claimed in claim 1, characterized in that: The conductive sheet (2) is not wrapped with insulating glue.

8. A rack for improving electroplating uniformity as claimed in claim 2, characterized in that: Conductors (10) are provided on both sides of the bottom of the fixing rod (4), and the conductors (10) are connected to the conductive sheet (2) via a wire.

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