A centrifugal plating basket for efficiently exchanging plating solution

Abstract

The present invention relates to the technical field of electroplating devices, and more specifically, it relates to a centrifugal plating basket for efficiently exchanging plating liquid, comprising a basket body, wherein a top cover and a bottom cover are respectively arranged on the top and bottom of the basket body, wherein the top cover is provided with an upper exchange hole, and the bottom cover is provided with a lower exchange hole, wherein filter screens are arranged in the upper exchange hole and the lower exchange hole; and further comprising a guide plate, wherein the guide plate comprises an upper guide plate and a lower guide plate, wherein the upper guide plate is used to force the plating liquid to be poured into the basket body through the upper exchange hole during forward rotation, and the lower guide plate is used to force the plating liquid to be poured into the basket body through the lower exchange hole during reverse rotation. The centrifugal plating basket for efficiently exchanging plating liquid of the present invention solves the problem that a small-mesh filter screen will reduce the exchange efficiency of the plating liquid, thereby affecting the electroplating effect.

Description

Technical Field

[0001] The invention relates to the technical field of electroplating devices, in particular to a centrifugal plating basket for efficiently exchanging plating liquid. Background Art

[0002] Electroplating is a surface treatment technology that deposits a thin film of metal or other materials on the surface of an object by electrolysis to achieve the purpose of corrosion protection, improved conductivity, and aesthetics. The electroplating process includes: preparation, cleaning the surface of the object to be plated to remove dirt, grease and oxides to ensure that the electroplating layer can adhere evenly; electrolytic cell, placing the cleaned object in the electroplating solution, which usually contains a metal salt solution to be plated, such as nickel plating, zinc plating, chromium plating, etc.; power on, powering the electrolytic cell through a power supply to generate current between the object to be plated (cathode) and the anode. At this time, the metal ions in the electroplating solution will move toward the cathode and be reduced to a metal state on its surface, thereby forming a thin film; post-processing, after the electroplating is completed, subsequent steps such as cleaning and drying are required to improve the adhesion and durability of the coating.

[0003] In the prior art, a bucket-type centrifugal electroplating basket can be used for electroplating. For example, a bucket-type centrifugal electroplating basket disclosed in a Chinese patent with patent publication number CN116288628B includes a plating rack, a centrifugal electroplating basket body, a first box body and a second box body. The top of the centrifugal electroplating basket body is connected to a vertically arranged rotating mechanism, which drives the centrifugal electroplating basket to rotate at high speed through a stainless steel transmission shaft, and conducts electricity to the internal cathode ring through this stainless steel transmission shaft. The bottom and top of the centrifugal electroplating basket body are both provided with a filter screen for exchanging the electroplating solution. In this centrifugal electroplating basket, there is no need to add steel balls to the electroplating basket for conduction, which solves the problem of material waste caused by the formation of a coating on the surface of the steel balls; the plating solution in the centrifugal electroplating basket body is continuously exchanged with the outside world to avoid the reduction of metal ions in the plating solution and the deterioration of the electroplating effect; by setting a servo motor that can rotate forward and reverse to drive the centrifugal electroplating basket body to rotate and turn the product over, the problem of thin objects being difficult to turn over during the electroplating process is solved.

[0004] In the above-mentioned electroplating process, the plating liquid inside and outside the centrifugal plating basket needs to be fully exchanged to achieve a good electroplating effect. Therefore, the top and bottom surfaces of the centrifugal plating basket are respectively designed with liquid inlet and outlet holes. Furthermore, in order to prevent the plated product from leaking out, a filter needs to be provided at the liquid inlet and outlet holes. With the continuous development of electronic component production technology, the size of products produced now is getting smaller and smaller. If miniature-sized products need to be electroplated, a tighter filter needs to be replaced, otherwise there is a risk of product leakage. However, a filter with a very small mesh size will make it difficult for the plating liquid to enter and exit the centrifugal plating basket, reducing the exchange efficiency of the plating liquid, thereby affecting the electroplating effect. Summary of the invention

[0005] In order to solve the problem that a small-mesh filter will reduce the exchange efficiency of the electroplating solution, thereby affecting the electroplating effect, the present application provides a centrifugal plating basket for efficiently exchanging the plating solution.

[0006] The centrifugal plating basket for efficiently exchanging plating solution provided by the present invention adopts the following technical solution:

[0007] A centrifugal plating basket for efficiently exchanging plating liquid comprises a basket body, wherein a top cover and a bottom cover are respectively arranged on the top and bottom of the basket body, wherein the top cover is provided with an upper exchange hole, and the bottom cover is provided with a lower exchange hole, wherein filter screens are arranged in the upper exchange hole and the lower exchange hole; and further comprises a guide plate, wherein the guide plate comprises an upper guide plate and a lower guide plate, wherein the upper guide plate is used to force the plating liquid to be poured into the basket body through the upper exchange hole during forward rotation, and the lower guide plate is used to force the plating liquid to be poured into the basket body through the lower exchange hole during reverse rotation.

[0008] Preferably, the cross-section of the guide plate is fan-shaped, and the cross-section of the guide plate includes an inner arc edge, a first radial edge, an outer arc edge and a second radial edge connected end to end in sequence, the inner arc edge and the outer arc edge have the same axis, the inner arc edge is shorter than the outer arc edge, and the first radial edge and the second radial edge have the same length, the guide plate includes a top surface, a bottom surface, an inner arc surface, an outer arc surface, a first radial surface and a second radial surface, the guide plate is arranged on the top cover or the bottom cover with the bottom surface as the inner surface, an exchange channel is provided on the bottom surface of the guide plate, one end of the exchange channel passes through the first radial surface of the guide plate, when the guide plate is arranged at the upper exchange port as an upper guide plate, its first radial surface faces the forward rotation direction, and when the guide plate is arranged at the lower exchange port as a lower guide plate, its first radial surface faces the reverse rotation direction.

[0009] Preferably, the top surface of the guide plate is an inclined surface, and the top surface of the guide plate slopes downward from the first radial edge to the second radial edge.

[0010] Preferably, the top surface of the guide plate slopes downward from the outer arc-shaped edge toward the inner arc-shaped edge.

[0011] Preferably, four of the upper exchange holes and four of the lower exchange holes are provided, four of the upper guide plates are provided corresponding to the number of the upper exchange holes, and four of the lower guide plates are provided corresponding to the number of the lower exchange holes.

[0012] Preferably, the four upper guide plates and the four lower guide plates are staggered in the vertical direction, the downward projection surface of the upper guide plate is located between two adjacent lower guide plates, and the upward projection surface of the lower guide plate is located between two adjacent upper guide plates.

[0013] Preferably, the basket body is connected with a transmission shaft, and the transmission shaft is used for an external driving member.

[0014] Preferably, the guide plate is detachably arranged on the top cover or the bottom cover of the basket body by screws, and the guide plate is provided with a plurality of screw holes, wherein a part of the screw holes are distributed at intervals along the inner arc edge of the guide plate, and another part of the screw holes are distributed at intervals along the outer arc edge of the guide plate.

[0015] Preferably, the edges of the guide plates are chamfered.

[0016] Preferably, the outer arc surface of the upper guide plate is provided with marking arc surfaces at intervals.

[0017] The beneficial effects of the present invention are:

[0018] When the centrifugal plating basket rotates forward, the first radial surface of the upper guide plate serves as the rotating end surface, and the plating liquid will forcibly enter the exchange channel of the upper guide plate under the action of inertia, and finally be forcibly poured into the basket body through the upper exchange port and the filter screen, and the original plating liquid in the basket body will be discharged through the lower exchange port and the exchange channel of the lower guide plate, thereby realizing efficient exchange of the plating liquid; and when the centrifugal plating basket rotates reversely, the first radial surface of the lower guide plate serves as the rotating end surface, and the plating liquid will forcibly enter the exchange channel of the lower guide plate under the action of inertia, and finally be forcibly poured into the basket body through the lower exchange port and the filter screen, and the original plating liquid in the basket body will be discharged through the upper exchange port and the exchange channel of the upper guide plate, thereby realizing efficient exchange of the plating liquid, thereby solving the problem that the small-mesh filter screen will reduce the exchange efficiency of the plating liquid, thereby affecting the electroplating effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the top of the centrifugal plating basket in the embodiment of the present application;

[0020] Figure 2 It is a partial structural schematic diagram of the top of the centrifugal plating basket in an embodiment of the present application;

[0021] Figure 3 It is a schematic diagram of the overall structure of the bottom of the centrifugal plating basket in the embodiment of the present application;

[0022] Figure 4 It is a partial structural schematic diagram of the bottom of the centrifugal plating basket in an embodiment of the present application;

[0023] Figure 5 It is a schematic diagram of the structure of the guide plate in the embodiment of the present application.

[0024] Explanation of the accompanying drawings: 1. basket body; 2. top cover; 3. bottom cover; 4. upper exchange hole; 5. lower exchange hole; 6. upper guide plate; 7. lower guide plate; 8. inner arc edge; 9. first radial edge; 10. outer arc edge; 11. second radial edge; 12. exchange channel; 13. screw hole; 14. marking arc surface; 15. transmission shaft. DETAILED DESCRIPTION

[0025] The following will be combined with the attached Figure 1 -Attached Figure 5 The present invention is further illustrated by the following embodiments.

[0026] This embodiment discloses a centrifugal plating basket for efficiently exchanging plating solution.

[0027] Reference Figures 1 to 4 The centrifugal plating basket for efficiently exchanging plating solution comprises a basket body 1, which is a cylinder that passes through from top to bottom. The top and bottom of the basket body 1 are detachably provided with a top cover 2 and a bottom cover 3 by screws, respectively. A plating space for placing the plated object is formed between the inner sides of the basket body 1, the top cover 2 and the bottom cover 3. The basket body 1 is connected with a transmission shaft 15, which is used for externally connecting a driving member so that the driving member controls the forward or reverse rotation of the basket body 1. In this embodiment, the clockwise rotation of the basket body 1 in the normal use state is the forward rotation, and the counterclockwise rotation is the reverse rotation. Further, the top cover 2 is provided with an upper exchange hole 4, and the bottom cover 3 is provided with a lower exchange hole 5. When the basket body 1 rotates forward, reverses or is stationary, the upper exchange hole 4 and the lower exchange hole 5 are both used to allow the plating solution to enter and exit the basket body 1. In this embodiment, four upper exchange holes 4 and four lower exchange holes 5 are provided, and the four upper exchange holes 4 are evenly provided on the top cover 2 around the transmission shaft 15, and the four lower exchange holes 5 are evenly provided on the bottom cover 3 around the transmission shaft 15. Filters are arranged in the upper exchange hole 4 and the lower exchange hole 5 . The filter is selected according to the size of the plated object to prevent the plated object from leaking out of the upper exchange hole 4 or the lower exchange hole 5 .

[0028] Reference Figures 1 to 4 In the present invention, the centrifugal plating basket for efficiently exchanging the plating solution further includes a guide plate, which includes an upper guide plate 6 and a lower guide plate 7. Four upper guide plates 6 are provided corresponding to the number of upper exchange holes 4. The four upper guide plates 6 are respectively covered on the four upper exchange holes 4, and are used to force the plating solution to pass through the upper exchange holes 4 and be poured into the basket body 1 during the forward rotation process. Four lower guide plates 7 are also provided corresponding to the number of lower exchange holes 5. The four lower guide plates 7 are respectively covered on the four lower exchange holes 5, and are used to force the plating solution to pass through the lower exchange holes 5 and be poured into the basket body 1 during the reverse rotation process.

[0029] Reference Figures 1 to 5Specifically, the cross section of the guide plate is fan-shaped, and the cross section of the guide plate includes an inner arc edge 8, a first radial edge 9, an outer arc edge 10, and a second radial edge 11 connected end to end in sequence, wherein the inner arc edge 8 and the outer arc edge 10 have the same axis, the inner arc edge 8 is shorter than the outer arc edge 10, and the first radial edge 9 and the second radial edge 11 have the same length. Based on the fan-shaped structure of the guide plate, the guide plate includes a top surface, a bottom surface, an inner arc surface, an outer arc surface, a first radial surface, and a second radial surface, and the guide plate is arranged on the top cover 2 or the bottom cover 3 with the bottom surface as the inner side surface. Further, an exchange channel 12 is opened on the bottom surface of the guide plate, and one end of the exchange channel 12 passes through the first radial surface of the guide plate. When the guide plate is arranged at the upper exchange port as an upper guide plate 6, its first radial surface faces the forward direction, and when the guide plate is arranged at the lower exchange port as a lower guide plate 7, its first radial surface faces the reverse direction. With this arrangement, when the centrifugal plating basket rotates forward, the first radial surface of the upper guide plate 6 serves as a rotating end surface, and the plating liquid will forcibly enter the exchange channel 12 of the upper guide plate 6 under the action of inertia, and finally be forcibly poured into the basket body 1 through the upper exchange port and the filter screen, and the original plating liquid in the basket body 1 will be discharged through the lower exchange port and the exchange channel 12 of the lower guide plate 7, thereby realizing efficient exchange of the plating liquid; and when the centrifugal plating basket rotates reversely, the first radial surface of the lower guide plate 7 serves as a rotating end surface, and the plating liquid will forcibly enter the exchange channel 12 of the lower guide plate 7 under the action of inertia, and finally be forcibly poured into the basket body 1 through the lower exchange port and the filter screen, and the original plating liquid in the basket body 1 will be discharged through the upper exchange port and the exchange channel 12 of the upper guide plate 6, thereby realizing efficient exchange of the plating liquid, thereby solving the problem that the small-mesh filter screen reduces the exchange efficiency of the plating liquid, thereby affecting the electroplating effect.

[0030] Reference Figures 1 to 4 When the rotation direction of the centrifugal plating basket changes, the plated parts in the basket body 1 may be turned over due to inertia to achieve uniform electroplating, but there is still a possibility of turning over failure. By setting the guide plate, when the rotation direction of the centrifugal plating basket changes, the direction of the water flow in the basket body 1 changes at the same time. Since the water flow directly contacts the plated parts, the direction of the water flow will undoubtedly greatly increase the success rate of turning over the plated parts to ensure uniform electroplating.

[0031] Reference Figures 1 to 4Since the first radial surface of the upper guide plate 6 and the first radial surface of the lower guide plate 7 are in opposite directions, when the first radial surface of the upper guide plate 6 is used as a rotating end surface, the second radial surface of the lower guide plate 7 will also be used as a rotating end surface, and when the first radial surface of the lower guide plate 7 is used as a rotating end surface, the second radial surface of the upper guide plate 6 will also be used as a rotating end surface. However, the second radial surface is a closed surface, which results in that no matter whether the basket body 1 is in the process of forward rotation or reverse rotation, it will be subject to a larger rotation resistance brought by the second radial surface. In order to reduce the rotation resistance of the second radial surface of the guide plate, the present invention also makes the following improvements. Specifically, the top surface of the guide plate is a slope, which slopes downward from the first radial edge 9 to the second radial edge 11, and from the outer arc edge 10 to the inner arc edge 8, so that the connection between the first radial surface and the outer arc surface is the thickest and the connection between the second radial surface and the inner arc surface is the thinnest, which reduces the area of ​​the second radial surface, making it easier for the second radial surface to cut the water flow, and the closer to the rotation axis, the easier it is to cut the water flow, thereby reducing the rotation resistance brought by the second radial surface.

[0032] Reference Figures 1 to 4 The inclined design of the top surface of the guide plate has special effects other than drag reduction. Specifically, when the first radial surface of the guide plate is used as the rotating end surface, the downward inclination of the top surface of the guide plate will direct its wake to the first radial surface of the next guide plate, thereby introducing the wake into the exchange channel 12 of the next guide plate, thereby continuously improving the exchange efficiency of the electroplating solution.

[0033] Reference Figures 1 to 4 , the four upper guide plates 6 and the four lower guide plates 7 are staggered in the vertical direction, that is, the downward projection surface of the upper guide plate 6 is located between two adjacent lower guide plates 7, and the upward projection surface of the lower guide plate 7 is located between two adjacent upper guide plates 6. Such an arrangement can better maintain the position stability and structural stability of the basket body 1 during rotation. Taking the forward rotation of the basket body 1 as an example, on the top cover 2 of the basket body 1, the plating liquid is poured in from the first radial surface of the upper guide plate 6 to cause downward pressure. At the same time, on the bottom cover 3 of the basket body 1, the plating liquid will give pressure to the rear end of the lower guide plate 7 to cause upward force. Through the staggered arrangement, the first radial surface of the upper guide plate 6 is aligned with the rear end of the lower guide plate 7 in the vertical direction at this time, and the downward pressure and upward force are offset by the shortest path, which not only reduces the shaking of the basket body 1 during rotation, improves the position stability of the basket body 1, but also reduces the transmission of force on the structure of the basket body 1, and improves the structural stability of the basket body 1.

[0034] Reference Figures 1 to 5The guide plate is detachably arranged on the top cover 2 or the bottom cover 3 of the basket body 1 by screws. In order to realize the screw connection, the guide plate is provided with a plurality of screw holes 13. In this embodiment, the guide plate is provided with five screw holes 13, of which two screw holes 13 are spaced apart along the inner arc edge 8 of the guide plate, and the other three screw holes 13 are spaced apart along the outer arc edge 10 of the guide plate. In addition, multiple edges of the guide plate are provided with chamfers to further reduce the resistance generated during the rotation of the guide plate. The outer arc surface of the upper guide plate 6 is spaced apart with marking arc surfaces 14 to better distinguish the upper guide plate 6 from the lower guide plate 7.

[0035] The above are all preferred embodiments of the present invention, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A centrifugal plating basket for efficiently exchanging plating solution, characterized in that: The invention comprises a basket body (1), wherein the top and bottom of the basket body (1) are respectively provided with a top cover (2) and a bottom cover (3), wherein the top cover (2) is provided with an upper exchange hole (4), and the bottom cover (3) is provided with a lower exchange hole (5), and filter screens are provided in the upper exchange hole (4) and the lower exchange hole (5); and further comprises a guide plate, wherein the guide plate comprises an upper guide plate (6) and a lower guide plate (7), wherein the upper guide plate (6) is used to force the electroplating liquid to pass through the upper exchange hole (4) into the basket body (1) during forward rotation, and the lower guide plate (7) is used to force the electroplating liquid to pass through the lower exchange hole (5) into the basket body (1) during reverse rotation; The cross section of the guide plate is fan-shaped, and the cross section of the guide plate includes an inner arc edge (8), a first radial edge (9), an outer arc edge (10) and a second radial edge (11) which are connected end to end in sequence, the inner arc edge (8) and the outer arc edge (10) have the same axis, the inner arc edge (8) is shorter than the outer arc edge (10), the first radial edge (9) and the second radial edge (11) have the same length, and the guide plate includes a top surface, a bottom surface, an inner arc surface, an outer arc surface, a first radial surface and a second radial surface, the guide plate being arranged on the top cover (2) or the bottom cover (3) with the bottom surface as the inner side surface, the bottom surface of the guide plate being provided with an exchange channel (12), one end of the exchange channel (12) passing through the first radial surface of the guide plate, when the guide plate is arranged in the upper exchange hole (4) as an upper guide plate (6), its first radial surface faces the forward direction, and when the guide plate is arranged in the lower exchange hole (5) as a lower guide plate (7), its first radial surface faces the reverse direction.

2. The centrifugal plating basket for efficiently exchanging plating solution according to claim 1, characterized in that: The top surface of the guide plate is an inclined surface, and the top surface of the guide plate slopes downward from the first radial edge (9) to the second radial edge (11).

3. A centrifugal plating basket for efficiently exchanging plating solution according to claim 2, characterized in that: The top surface of the guide plate slopes downward from the outer arc-shaped edge (10) toward the inner arc-shaped edge (8).

4. The centrifugal plating basket for efficiently exchanging plating solution according to claim 3, characterized in that: Four of the upper exchange holes (4) and four of the lower exchange holes (5) are provided, four of the upper guide plates (6) are provided corresponding to the number of the upper exchange holes (4), and four of the lower guide plates (7) are provided corresponding to the number of the lower exchange holes (5).

5. The centrifugal plating basket for efficiently exchanging plating solution according to claim 4, characterized in that: The four upper guide plates (6) and the four lower guide plates (7) are staggered in the vertical direction; the downward projection surface of the upper guide plate (6) is located between two adjacent lower guide plates (7); and the upward projection surface of the lower guide plate (7) is located between two adjacent upper guide plates (6).

6. The centrifugal plating basket for efficiently exchanging plating solution according to claim 1, characterized in that: The basket body (1) is connected to a transmission shaft (15), and the transmission shaft (15) is used for an external driving member.

7. The centrifugal plating basket for efficiently exchanging plating solution according to claim 1, characterized in that: The guide plate is detachably arranged on the top cover (2) or the bottom cover (3) of the basket body (1) by means of screws, and the guide plate is provided with a plurality of screw holes (13), wherein a portion of the screw holes (13) are distributed at intervals along the inner arc-shaped edge (8) of the guide plate, and another portion of the screw holes (13) are distributed at intervals along the outer arc-shaped edge (10) of the guide plate.

8. The centrifugal plating basket for efficiently exchanging plating solution according to claim 1, characterized in that: The edges of the guide plates are all chamfered.

9. The centrifugal plating basket for efficiently exchanging plating solution according to claim 1, characterized in that: The outer arc-shaped surface of the upper guide plate (6) is provided with marking arc surfaces (14) at intervals.

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