Local deplating device
By designing a local stripping device, an overflow is generated at the stripping location on the workpiece using an electrochemical method, which solves the problems of bath solution pollution and high consumption in traditional local stripping methods, and achieves the effects of precise control and cost reduction.
Patent Information
- Application Number
- CN202422999244.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-05
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-12-05
AI Technical Summary
Traditional partial stripping methods make it difficult to precisely control the local contact of the workpiece with the plating solution, resulting in plating solution contamination, high consumption, and high post-processing costs.
A local stripping device is designed. By combining a horizontal substrate, a stripping block, an anode plate, and a cathode plate, an overflow is formed at the stripping location on the workpiece using an electrochemical method to achieve local stripping, thereby reducing chemical consumption and pollution.
It achieves precise control of localized stripping, reduces chemical consumption and pollution, meets the requirements of localized stripping, and reduces post-processing costs.
Smart Images
Figure CN223510034U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metal coating stripping technology, and in particular to a local stripping device. Background Technology
[0002] In some special processing situations, it is necessary to remove the plating from specific areas of the workpiece. The traditional method involves placing the workpiece on a fixture, immersing the fixture in a plating bath, and removing the surface plating through the interaction of the anode and cathode. However, controlling the contact between specific areas of the workpiece and the plating bath is difficult when dealing with localized removal. Furthermore, the plating bath becomes contaminated after removal, and the process suffers from high water consumption and high post-processing costs. Utility Model Content
[0003] The purpose of this invention is to provide a partial stripping device to solve the problems in the background art, realize the partial stripping function, and reduce the pollution and consumption of the bath solution.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A partial stripping apparatus includes a horizontal substrate, a stripping block, an anode plate, and a cathode plate, wherein:
[0006] A positioning element is provided on the horizontal substrate. The positioning element is used to limit the workpiece to be deplated and to make the workpiece horizontally suspended above the horizontal substrate. The workpiece has a cavity to be deplated and a connecting pin extending into the cavity is provided on the workpiece. A through hole corresponding to the cavity on the workpiece is opened on the horizontal substrate.
[0007] The stripping block is set on the upper surface of the horizontal substrate and extends into the cavity. A gap is left between the side surface of the stripping block and the side wall of the cavity. A vertically penetrating fluid channel is opened in the stripping block. The fluid channel is connected to the through hole. The electric needle extends into the fluid channel from the top of the stripping block.
[0008] The anode plate is mounted on the outer surface of the stripping block and extends into the gap to contact the electrode needle for conduction.
[0009] The cathode plate is disposed on the lower surface of the horizontal substrate. A water outlet is provided on the cathode plate corresponding to each through hole. The stripping solution flowing out from the water outlet fills the fluid channel through the through hole and overflows at the top of the stripping block.
[0010] As an alternative, multiple stripping stations are formed on the horizontal substrate to strip multiple workpieces simultaneously. The horizontal substrate is provided with multiple through holes corresponding to the cavities of the multiple workpieces. A bottom tank is provided below the horizontal substrate, and the inner cavity of the bottom tank is connected to each through hole. A water inlet pipe is provided on the bottom tank, and the stripping solution flowing out from the water inlet pipe fills the inner cavity of the bottom tank and flows to each through hole.
[0011] As an alternative, the opening of the bottom tank is sealed to the cathode plate, and the cathode plate has an exposed portion for external electrical connection.
[0012] As an alternative, the diameter of the outlet hole is smaller than that of the through hole, and the diameter of the through hole is the same as that of the fluid channel.
[0013] As an alternative, a baffle is provided on the outer surface of the stripping block and below the mounting position of the anode plate. The baffle is used to prevent the stripping solution overflowing from the gap from flowing to the horizontal substrate.
[0014] As an alternative, the top of the stripping block is provided with a clearance groove corresponding to the position of the electrical contact pin.
[0015] As an alternative, the workpiece has two recesses to be stripped of plating, and two stripping blocks are provided on the horizontal substrate corresponding to the two recesses. The two stripping blocks are connected by a C-shaped anode plate.
[0016] As an alternative, the workpiece is placed on a transport tray with positioning holes at both ends. The positioning element stands upright on a horizontal base plate, and the top of the positioning element has a positioning post that mates with the positioning hole.
[0017] The beneficial effects of this utility model are:
[0018] This local stripping device guides the stripping solution to the workpiece to be stripped using a stripping block, creating an overflow. It then uses an electrochemical method to strip the workpiece at the stripping location. This process reduces the consumption of stripping solution, minimizes pollution, and meets the requirements for local stripping. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of the partial stripping device provided in this embodiment of the utility model;
[0020] Figure 2 This is a schematic diagram showing the cooperation between the stripping block, the anode plate, and the workpiece in the partial stripping device provided in this embodiment of the utility model.
[0021] In the attached image:
[0022] 1. Horizontal substrate; 11. Through hole; 2. Stripping block; 21. Fluid channel; 22. Baffle; 23. Clearance groove; 3. Anode plate; 4. Cathode plate; 41. Water outlet hole; 42. Exposed part; 5. Positioning component; 51. Positioning post; 6. Workpiece; 61. Cavity; 62. Electrode pin; 7. Gap; 8. Bottom tank; 81. Water inlet pipe; 9. Transport tray. Detailed Implementation
[0023] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.
[0024] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0025] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0026] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0027] Furthermore, the terms "first" and "second" are merely used to distinguish between different terms in description and do not have any special meaning.
[0028] Please see Figure 1 and Figure 2 As shown, this embodiment provides a partial stripping device, including a horizontal substrate 1, a stripping block 2, an anode plate 3, and a cathode plate 4, wherein:
[0029] A positioning member 5 is provided on the horizontal substrate 1. The positioning member 5 is used to limit the workpiece 6 to be deplated and to make the workpiece 6 horizontally suspended above the horizontal substrate 1. The workpiece 6 has a cavity 61 to be deplated and a power-connecting pin 62 extending into the cavity 61. A through hole 11 corresponding to the cavity 61 on the workpiece 6 is provided on the horizontal substrate 1.
[0030] The stripping block 2 is disposed on the upper surface of the horizontal substrate 1 and extends into the cavity 61 on the workpiece 6. A gap 7 is left between the side surface of the stripping block 2 and the side wall of the cavity 61. A vertically penetrating fluid channel 21 is provided in the stripping block 2. The fluid channel 21 is connected to the through hole 11. The electric needle 62 extends into the fluid channel 21 from the top of the stripping block 2.
[0031] The anode plate 3 is mounted on the outer surface of the stripping block 2 and extends into the gap 7 to contact and conduct electricity with the contact pin 62;
[0032] The cathode plate 4 is disposed on the lower surface of the horizontal substrate 1. A water outlet 41 is provided on the cathode plate 4 corresponding to each through hole 11. The stripping solution flowing out from the water outlet 41 fills the fluid channel 21 through the through hole 11 and overflows at the top of the stripping block 2.
[0033] Therefore, the stripping solution is diverted to the stripping position of the workpiece 6 through the stripping block 2 and overflows, and the stripping is carried out on the stripping position of the workpiece 6 by electrochemical method. The consumption of stripping solution is reduced, pollution is reduced, and the requirements for local stripping are met.
[0034] Optionally, a plurality of stripping stations are formed on the horizontal substrate 1 to strip multiple workpieces 6 simultaneously. The horizontal substrate 1 is provided with a plurality of through holes 11 corresponding to the cavities 61 of the multiple workpieces 6. A bottom groove 8 is provided below the horizontal substrate 1. The inner cavity of the bottom groove 8 is connected to each through hole 11. A water inlet pipe 81 is provided on the bottom groove 8. Stripping solution flowing out from the water inlet pipe 81 fills the inner cavity of the bottom groove 8 and flows to each through hole 11.
[0035] This allows for the simultaneous supply of stripping solutions to multiple stripping stations, and this supply method does not contaminate the stripping solutions in the bottom tank 8.
[0036] Furthermore, the groove opening of the bottom groove 8 is sealed and fitted to the cathode plate 4, and the cathode plate 4 has an exposed portion 42 for connecting to the outside, which facilitates the connection of electricity from the side.
[0037] Optionally, the diameter of the outlet hole 41 is smaller than the diameter of the through hole 11, and the diameter of the through hole 11 is the same as the diameter of the fluid channel 21.
[0038] Therefore, the stripping solution slows down after passing through the small-diameter water outlet 41, gradually filling the fluid channel 21 and causing overflow. The overflowing stripping solution flows into the cavity 61 and flows away through the gap 7 between the stripping block 2 and the cavity 61, but it is necessary to maintain an appropriate amount of stripping solution. In addition, this structure is less affected by horizontal movement, so that there will be no situation where some overflow occurs and some do not overflow.
[0039] This overflow silver plating solution supply method achieves two advantages: firstly, it enables the cathode plate 4 and anode plate 3 to conduct, allowing the metal plating layer on the workpiece 6 connected to the anode plate 3 to gradually dissolve into the stripping solution under the action of direct current; secondly, it greatly reduces the consumption of stripping solution and lowers the stripping cost.
[0040] Optionally, a baffle 22 is provided on the outer surface of the stripping block 2 and below the mounting position of the anode plate 3. The baffle 22 is used to block the stripping solution overflowing from the gap 7 from flowing to the horizontal substrate 1, so as to prevent the anode plate 3 from short-circuiting with the cathode plate 4.
[0041] Optionally, a clearance groove 23 is provided on the top of the stripping block 2 corresponding to the position of the electrode 62. During stripping, the workpiece 6 is placed in the local stripping device, the stripping block 2 is embedded in the cavity 61, and the electrode 62 on the workpiece 6 is embedded in the clearance groove 23 and comes into contact with the anode plate 3.
[0042] Optionally, the workpiece 6 has two recesses 61 to be stripped, and two stripping blocks 2 are provided on the horizontal substrate 1 corresponding to the two recesses 61. The two stripping blocks 2 are connected by a C-shaped anode sheet 3.
[0043] Optionally, the workpiece 6 is placed on the transport tray 9, which has positioning holes at both ends. The positioning element 5 is erected on the horizontal base plate 1, and the top of the positioning element 5 is provided with a positioning post 51 that cooperates with the positioning hole to ensure the accurate position of the workpiece 6.
[0044] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A partial stripping device, characterized in that, It includes a horizontal substrate (1), a stripping block (2), an anode plate (3), and a cathode plate (4), wherein: A positioning member (5) is provided on the horizontal substrate (1). The positioning member (5) is used to limit the workpiece (6) to be deplated and to make the workpiece (6) horizontally suspended above the horizontal substrate (1). The workpiece (6) has a cavity (61) to be deplated and is provided with a power-connecting pin (62) extending into the cavity (61). The horizontal substrate (1) is provided with a through hole (11) corresponding to the cavity (61) on the workpiece (6). The plating stripping block (2) is disposed on the upper surface of the horizontal substrate (1) and extends into the cavity (61). A gap (7) is left between the side surface of the plating stripping block (2) and the side wall of the cavity (61). A vertically penetrating fluid channel (21) is provided in the plating stripping block (2). The fluid channel (21) is connected to the through hole (11). The electrical contact pin (62) extends from the top of the plating stripping block (2) into the fluid channel (21). The anode plate (3) is mounted on the outer surface of the stripping block (2) and extends into the gap (7) to contact and conduct electricity with the electrode pin (62); The cathode plate (4) is disposed on the lower surface of the horizontal substrate (1). A water outlet (41) is provided on the cathode plate (4) corresponding to each of the through holes (11). The stripping solution flowing out from the water outlet (41) fills the fluid channel (21) through the through hole (11) and overflows at the top of the stripping block (2).
2. The partial stripping device according to claim 1, characterized in that, The horizontal substrate (1) has multiple stripping stations for simultaneously stripping multiple workpieces (6). The horizontal substrate (1) has multiple through holes (11) corresponding to the cavities (61) of the multiple workpieces (6). A bottom groove (8) is provided below the horizontal substrate (1). The inner cavity of the bottom groove (8) is connected to each of the through holes (11). A water inlet pipe (81) is provided on the bottom groove (8). Stripping solution flowing out from the water inlet pipe (81) fills the inner cavity of the bottom groove (8) and flows to each of the through holes (11).
3. The partial stripping device according to claim 2, characterized in that, The groove of the bottom groove (8) is sealed and fitted to the cathode plate (4), and the cathode plate (4) has an exposed portion (42) for connecting to the outside.
4. The partial stripping device according to claim 1, characterized in that, The diameter of the outlet hole (41) is smaller than that of the through hole (11), and the diameter of the through hole (11) is the same as that of the fluid channel (21).
5. The partial stripping device according to claim 1, characterized in that, A baffle (22) is provided on the outer surface of the stripping block (2) and below the mounting position of the anode plate (3). The baffle (22) is used to block the stripping solution overflowing from the gap (7) from flowing to the horizontal substrate (1).
6. The partial stripping device according to claim 1, characterized in that, The top of the plating stripping block (2) is provided with a clearance groove (23) corresponding to the position of the electrical contact pin (62).
7. The partial stripping device according to claim 1, characterized in that, The workpiece (6) has two recesses (61) to be deplated, and two deplating blocks (2) are provided on the horizontal substrate (1) corresponding to the two recesses (61). The two deplating blocks (2) are connected by a C-shaped anode sheet (3).
8. The partial stripping device according to claim 1, characterized in that, The workpiece (6) is placed on the transport tray (9), and the two ends of the transport tray (9) are provided with positioning holes. The positioning component (5) is erected on the horizontal base plate (1), and the top of the positioning component (5) is provided with a positioning post (51) that cooperates with the positioning hole.