Gold electroplating equipment

Abstract

The invention provides gold electroplating equipment. According to the gold electroplating equipment provided by the invention, the conductive panel is directly connected with the turnover assembly and the conductive column, so that the problems of short circuit and poor contact caused by impact between different plates and conductive tiles due to the fact that the conductive plates are arranged in a plurality of blocks and are electrically connected through rotation are solved. And when the body is turned out of the electroplating pool by the turnover mechanism, the ratchet wheel is clamped on the ratchet to fix the body and the turnover assembly, so that metal to be electroplated in the body is turned over. And in the process that the turnover mechanism immerses the body into the electroplating liquid, the ratchet wheel and the ratchets rotate freely, so that the at least two conductive columns are located at the lower half part of the body. Therefore, short circuit can be prevented, the electroplating effect of the bottom-sinking metal can be guaranteed, it can be guaranteed that electroplating liquid residues on the surface of other metal are minimum when the other metal is fished out, and the cleaning cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of precious metal processing, in particular to a gold electroplating equipment. BACKGROUND

[0002] In the field of precious metal processing, such as the processing and manufacturing of gold, compared with solid gold, electroplating gold on the outer layer of other metals has obvious price advantages. It can not only achieve mass production, but also be applied to the surfaces of metals of different materials, thereby improving the decorative and functional properties of the articles.

[0003] The existing gold electroplating principle generally involves placing other metals in an electroplating solution containing gold cyanide or gold thiocyanate, and reducing gold ions to the surface of other metals through the action of an electrode to complete the electroplating of gold. In the electroplating process of other metals, other metals are generally loaded into a drum and the drum loaded with other metals is placed in the electroplating solution for electroplating. Due to the weight of the other metals, they generally sink to the bottom of the drum. If the entire drum is electrolyzed, the gold ions will be free in the entire drum space, thereby affecting the effect of gold electroplating. Based on this problem, patent application file CN119307999B proposes a drum conductive device for neodymium iron boron electroplating. The conductive plate is arranged as a plurality of plate-shaped structures arranged at intervals, and a conductive tile is arranged at the bottom of the outer side. The conductive tile is electrified and the conductive plate is rotated to ensure that the conductive tile is always in communication with the bottommost conductive plate, thereby electroplating the metal at the bottom of the drum.

[0004] The prior art document generates an electroplating effect at the bottom by rotating the conductive plate and making the bottommost conductive plate contact the conductive tile. Since the on-off of the conductive plate during rotation is completed by the collision contact between the conductive plate and the conductive tile, when the conductive plate collides with the conductive tile for a long time, the conductive plate and the conductive tile may not contact well, thereby causing poor electroplating effect. Moreover, the above-mentioned drum cannot be turned over, so that a large amount of other metals sink to the bottom of the drum and a large amount of electroplating solution is brought out during fishing, thereby increasing the cleaning cost of subsequent electroplating. SUMMARY

[0005] Therefore, it is necessary to provide a gold electroplating equipment that can prevent short circuit and ensure the electroplating effect of the metal at the bottom when other metals sink to the bottom, and can reduce the cleaning cost when the other metals are fished out, to solve the above problems.

[0006] Embodiments of the present application provide a gold electroplating equipment, comprising:

[0007] a machine table, an electroplating tank arranged on the machine table, and a turnover mechanism;

[0008] The drum comprises a body, a turnover assembly, a locking assembly and a conductive assembly, one end of the turnover assembly is arranged on the turnover mechanism, the other end is arranged on the opposite ends of the body and is connected with an external power supply; the locking assembly comprises a ratchet wheel and a ratchet, the ratchet wheel and the ratchet are embedded in the turnover assembly; the conductive assembly comprises a conductive panel electrically connected with the turnover assembly and at least two conductive columns, one end of the at least two conductive columns is arranged on the conductive panel, and the other end is arranged on the body.

[0009] The ratchet wheel is fixed on the turnover assembly to rotate with the turnover assembly, the ratchet is fixed on the conductive panel, a locking groove is formed in the circumferential wall of the ratchet wheel from the electroplating tank to the surrounding direction of the turnover mechanism, when the turnover mechanism turns the body out of the electroplating tank, the ratchet wheel is clamped on the ratchet to fix the body and the turnover assembly, so as to turn the metal to be electroplated in the body; and when the turnover mechanism immerses the body into the electroplating solution, the ratchet wheel and the ratchet rotate freely to make the at least two conductive columns located below the half of the body.

[0010] In at least one embodiment of the present application, the drum further comprises an energizing member.

[0011] The energizing member is embedded in the turnover assembly and is electrically connected with the conductive panel, and an energizing port for connecting the external power supply is formed on the energizing member, and the current of the external power supply is introduced to the conductive panel through the energizing port.

[0012] In at least one embodiment of the present application, the energizing member is connected to the shell of the locking assembly, and the energizing member and the shell of the locking assembly are made of conductive material.

[0013] In at least one embodiment of the present application, the energizing member surrounds the locking assembly and is connected to the conductive panel, and the energizing member and the locking assembly have a gap for isolating current.

[0014] In at least one embodiment of the present application, the body is a cage structure with a regular hexagonal shape, and the body has a top surface and a bottom surface arranged opposite to each other.

[0015] The top surface is provided with an opening communicating with the inner cavity of the body, and other metals are placed in the inner cavity of the body through the opening.

[0016] The drum further comprises a load-bearing member arranged on the bottom surface, and when the body is immersed in the electroplating solution, the at least two conductive columns are located on both sides of the central axis of the load-bearing member in the vertical direction.

[0017] In at least one embodiment of the present application, the rotating shaft is arranged along the central axis of the body and extends through the body, and both ends of the rotating shaft are arranged on the turnover mechanism, and the drum gap-fitting sleeve is arranged on the rotating shaft.

[0018] In at least one embodiment of the present application, the line between the centers of the two conductive columns and the rotating shaft is an isosceles triangle when viewed along the side of the drum.

[0019] In at least one embodiment of the present application, the drum further comprises a first cover plate and a second cover plate.

[0020] The first cover plate and the second cover plate are fixed to the two ends of the body opposite to each other to block the inner cavity of the body.

[0021] In at least one embodiment of the present application, the first cover plate is provided with a plurality of conductive holes, and each conductive column extends into the inner cavity of the drum through one of the conductive holes.

[0022] The gold electroplating equipment provided above avoids the short circuit and poor contact caused by the impact of different plates on the conductive tile when the conductive plates are arranged in multiple blocks and connected by rotation. The ratchet wheel is fixed in the turnover assembly and rotates with the turnover assembly, the ratchet teeth are fixed on the conductive panel, and the locking groove is arranged on the peripheral wall from the turnover mechanism to the circumferential direction of the electroplating tank. When the turnover mechanism turns the body out of the electroplating tank, the ratchet wheel is clamped on the ratchet teeth to fix the body and the turnover assembly, so as to turn the metal to be electroplated in the body. During the process of immersing the body into the electroplating solution by the turnover mechanism, the ratchet wheel and the ratchet teeth rotate freely to make at least two conductive columns located in the lower half of the body. Therefore, short circuit can be prevented, the electroplating effect of the bottom metal can be ensured, and the residual electroplating solution on the surface of other metals can be minimized when they are taken out, thereby reducing the cleaning cost. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 FIG. 1 is a schematic view of the three-dimensional structure of the gold electroplating equipment according to an embodiment of the present application.

[0024] Figure 2 FIG. 2 is a schematic view of the three-dimensional structure of the drum shown in FIG. 1. Figure 1

[0025] Figure 3 Figure 2 ​​The first perspective view of the drum hidden body.

[0026] Figure 4 For Figure 2 The second perspective view of the drum hidden body.

[0027] Figure 5 For Figure 1 The cross-sectional view of the locking assembly.

[0028] Explanation of main element symbols

[0029] 100, gold plating equipment; 10, machine table; 20, plating bath; 30, turnover mechanism; 40, drum; 41, body; 41a, top surface; 41b, opening; 41c, bottom surface; 42, turnover assembly; 421, turnover rod; 422, clamping piece; 43, locking assembly; 431, ratchet; 431a, locking groove; 432, ratchet tooth; 433, shell; 44, conductive assembly; 441, conductive panel; 442, conductive column; 45, power supply; 45a, power supply port; 46, bearing; 47, rotating shaft; 48, first cover plate; 481, conductive hole; 49, second cover plate; F1, first direction; F2, second direction. DETAILED DESCRIPTION

[0030] The embodiments of the present application will be described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of, but not all of the embodiments of the present application.

[0031] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or can exist with a middle component. When a component is considered to be "provided on" another component, it can be directly provided on the other component or can exist with a middle component. The terms "top", "bottom", "upper", "lower", "left", "right", "front", "back", and the like used herein are for illustrative purposes only.

[0032] Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments and features in the embodiments can be combined with each other without conflict.

[0033] Please refer to Figures 1-5 The present application provides a gold plating equipment 100, comprising:

[0034] Machine table 10, plating bath 20 and turnover mechanism 30 provided on the machine table 10;

[0035] The roller 40 comprises a body 41, a turnover assembly 42, a locking assembly 43 and a conductive assembly 44. One end of the turnover assembly 42 is arranged on the turnover mechanism 30, and the other end is arranged on opposite ends of the body 41 and connected with an external power supply. The locking assembly 43 comprises a ratchet wheel 431 and a ratchet tooth 432, and the ratchet wheel 431 and the ratchet tooth 432 are embedded in the turnover assembly 42. The conductive assembly 44 comprises a conductive panel 441 electrically connected with the turnover assembly 42 and at least two conductive columns 442. One end of the at least two conductive columns 442 is arranged on the conductive panel 441, and the other end is arranged on the body 41.

[0036] The ratchet wheel 431 is fixed on the turnover assembly 42 to rotate with the turnover assembly 42. The ratchet tooth 432 is fixed on the conductive panel 441. The ratchet wheel 431 is provided with a locking groove 431a on the circumferential wall in the direction of surrounding the turnover mechanism 30 from the electroplating tank 20. When the turnover mechanism 30 flips the body 41 out of the electroplating tank 20, the ratchet wheel 431 is clamped on the ratchet tooth 432 to fix the body 41 and the turnover assembly 42, so as to flip the metal to be electroplated in the body 41. During the process of immersing the body 41 into the electroplating solution by the turnover mechanism 30, the ratchet wheel 431 and the ratchet tooth 432 rotate freely, so that the at least two conductive columns 442 are located in the lower half of the body 41.

[0037] In a specific embodiment, the machine table 10 is a desktop machine table 10, the electroplating tank 20 is a tank opened on the machine table 10 for containing electroplating solution, and the turnover mechanism 30 is a device for turnover, such as a mechanical hand. It should be noted that the shape of the machine table 10 is not limited to this, and the turnover mechanism 30 is also not limited to this. Any device or equipment that can be realized can be used. It can be understood that the mechanical hand is a computer program controlled mechanical hand, which can grasp, turn over and the like according to the specified path. It is a prior art, and will not be described in detail here.

[0038] Further, in order to achieve a specific display effect or a specific surface process in a precious metal processing factory or a jewelry store, etc., it is often necessary to electroplate a layer of gold on the outer surface of some other metal parts. Generally, in the electroplating process, other metals need to be placed in a gold cyanide or gold thiocyanate solution in the electroplating solution, and gold ions in the electroplating solution are reduced to the surface of other metals by electrification to form a gold plating film. Other metals in the electroplating process are often placed in the drum 40, and then the drum 40 is placed in the electroplating bath 20 filled with the electroplating solution for electrification electroplating. Due to the weight of other metals, when they are placed in the drum 40 for electroplating, other metals often accumulate and sink to the bottom, so that when electrification is applied to the drum 40, the electroplating solution in the part not connected to the other metals will also be reduced, resulting in dispersion of gold ions and affecting the electroplating effect of other metals. Therefore, the patent application file CN119307999B proposes a technical means to solve the above technical problems, that is, the conductive plate is set as a plurality of plate-shaped structures, and the conductive tile is set at the bottom of the outer side. The conductive plate is rotated to make the conductive plate at the bottom always in contact with the conductive tile to be electrified. In the above prior art, the conductive plate needs to be continuously rotated, and different conductive plates will continuously contact and impact the conductive tile, so that after a long time of contact and impact, wear will occur between the conductive plate and the conductive tile, causing short circuit problems and affecting the electroplating effect. Based on this problem, the present application sets the conductive assembly 44 as a combination of the conductive panel 441 and the conductive column 442. Preferably, the conductive panel 441 is a complete plate-shaped structure capable of conducting electricity, such as an iron plate, etc. The conductive column 442 is a column structure arranged on the conductive panel for conducting electricity.

[0039] Further, in order to let other metals in the drum 40 during the electroplating process, at least two conductive columns 442 are located in the lower half of the body 41 to electroplate the other metals at the bottom of the drum 40, please refer to Figure 2 and Figure 5, the locking assembly 43 is set as a ratchet wheel 431 and a ratchet 432. Specifically, the ratchet wheel 431 is fixed on the turnover assembly 42 to rotate with the turnover assembly 42, the ratchet 432 is fixed on the conductive panel 441, and the ratchet wheel 431 and the ratchet 432 are embedded in the turnover assembly 42 and located in the same vertical space at the same time. When the turnover assembly 42 drives the roller 40 to overturn out of the electroplating solution, the turnover assembly 42 can drive the roller 40 to overturn out of the electroplating solution relative to the static state, thereby overturning other metals at the bottom of the roller 40, avoiding the cleaning problem caused by the accumulation of other metals and the residual electroplating solution between the other metals. During the process of the turnover assembly 42 driving the roller 40 to immerse in the electroplating solution, the turnover assembly 42 overturns without affecting the specific movement of the roller 40, the roller 40 always remains in the original position, and due to the gravity of the roller 40 and other metals, the conductive column 442 always locates in the lower half of the body 41, thereby achieving a better electroplating effect.

[0040] Further, in a specific embodiment, the body 41 is a cage structure with a regular hexagonal shape, the body 41 has a top surface 41a and a bottom surface 41c arranged opposite to each other; the top surface 41a is provided with an opening 41b communicating with the inner cavity of the body 41, and other metals are placed in the inner cavity of the body 41 through the opening 41b; the roller 40 further comprises a load-bearing member 46, the load-bearing member 46 is arranged on the bottom surface 41c, and at least two conductive columns 442 are located on both sides of the vertical central axis of the load-bearing member 46 when the body 41 is immersed in the electroplating solution.

[0041] It can be understood that during the process of the turnover assembly 42 driving the roller 40 to overturn to immerse in the electroplating bath 20, the roller 40 always remains in the original state because the ratchet wheel 431 and the ratchet 432 do not engage with each other, that is, the rotation of the turnover assembly 42 does not affect the overturning of the roller 40. In order to prevent the problem that the roller 40 overturns due to the resistance of the electroplating solution during the process of entering the electroplating solution, which causes the conductive column 442 to be located in the upper part of the body 41 and causes poor electroplating effect, the application sets the load-bearing member 46 on the bottom surface 41c to resist the resistance of the electroplating solution, thereby keeping the roller 40 always in the original state. In a specific embodiment, the load-bearing member 46 is an object with high density, such as iron, to generate greater gravity in a smaller volume. Preferably, at least two conductive columns 442 are arranged on both sides of the vertical central axis of the load-bearing member 46, so that the conductive columns 442 can conduct electricity to the electroplating solution on both sides of the bottom of the roller 40 at the same time during the electroplating process, thereby avoiding the electroplating problem caused by one-sided conduction.

[0042] Further, in order to ensure that the turnover assembly 42 and the rolling cylinder 40 can independently maintain their running track and shape during the process of the rolling cylinder 40 being immersed into the plating solution, in an embodiment, the rolling cylinder 40 further comprises a rotating shaft 47, which penetrates the body 41 along the central axis of the body 41 and has two ends respectively arranged on the turnover mechanism 30, and the rolling cylinder 40 is sleeved on the rotating shaft 47 in a clearance fit. Please refer to Figure 5 It can be understood that, when the turnover assembly 42 drives the rolling cylinder 40 to be immersed into the plating solution, i.e. when the turnover assembly 42 drives the ratchet wheel 431 to be turned in the second direction F2, since there is no mutual stop and force between the ratchet wheel 431 and the ratchet teeth 432, the turnover assembly 42 is turned while the rolling cylinder 40 remains in the original position during the turning of the turnover assembly 42. And during the process of being immersed into the plating solution, the power supply is continuously powered on, so as to ensure that the other metal on the bottom of the rolling cylinder 40 can be continuously plated.

[0043] Further, in order to ensure the plating effect in the rolling cylinder 40, in an embodiment, as viewed along the side surface of the rolling cylinder 40, the line connecting the centers of the two conductive columns 442 and the center of the rotating shaft 47 is an isosceles triangle. That is, the two conductive columns 442 are symmetrically arranged along the vertical direction of the rotating shaft 47, so as to simultaneously plate the plating solution on both sides.

[0044] In order to facilitate the understanding of the turning out and immersion process of the present application, the specific operation is as follows:

[0045] Please refer to Figure 2 and Figure 5 When the other metal needs to be plated, the other metal is placed into the inner cavity of the rolling cylinder 40 through the opening 41b, and then the turnover mechanism 30 is turned. At this time, the turnover mechanism 30 drives the ratchet wheel 431 to rotate in the second direction F2, and at this time, the ratchet teeth 432 do not stop the ratchet wheel 431, so that the turnover mechanism 30 drives the rolling cylinder 40 to be immersed into the plating solution, and the rolling cylinder 40 always remains in the original state under the action of the gravity of the bearing member 46. During the process of being immersed, the power supply is powered on to the conductive panel 441, the conductive panel 441 transmits the current to the conductive column 442, and the conductive column 442 conducts electricity to the part in contact with the conductive column 442. Since the conductive column 442 is arranged in the lower half of the body 41, when the conductive column 442 is electrified, the conductive column 442 electrolyzes the plating solution on the bottom of the rolling cylinder 40, so as to reduce the gold ions on the surface of the other metal on the bottom of the rolling cylinder 40.

[0046] After a certain time of plating is completed, the turnover mechanism 30 is turned in the first direction F1, so as to drive the ratchet wheel 431 to rotate in the first direction F1, and Figure 5When the ratchet wheel 431 rotates in the first direction F1, the ratchet wheel 431 abuts against the ratchet tooth 432 and pushes the ratchet tooth 432 to flip. The ratchet tooth 432 is fixed to the conductive panel 441, and the conductive panel 441 is fixed to the conductive column 442 and the roller 40. When the ratchet wheel 431 flips in the first direction F1, the flipping mechanism 30 drives the roller 40 to flip out of the electroplating solution relative to the static state. When the roller 40 flips out of the electroplating solution along with the flipping mechanism 30 in the first direction F1, the roller 40 tilts. At this time, other metals at the bottom of the roller 40 roll under the action of gravity, so that the other metals move relative to each other when the flipping mechanism 30 flips the roller 40 as a whole, and the electroplating solution remaining between the other metals is discharged, avoiding the cumbersome cleaning work after subsequent electroplating.

[0047] Please refer to Figures 2-4 , in order to ensure normal power supply to the bottom of the roller 40, the roller 40 further comprises a power supply part 45. The power supply part 45 is embedded into the flipping assembly 42 and electrically connected with the conductive panel 441. The power supply part 45 is provided with a power supply opening 45a for connecting an external power supply. The current of the external power supply is introduced into the conductive panel 441 through the power supply opening 45a.

[0048] It should be noted that the power supply part 45 embedded into the flipping assembly 42 is separately provided to connect the external power supply to the power supply part 45, so as to ensure the continuous power supply of the power supply in the roller 40. Further, the power supply part 45 is partially embedded into the flipping assembly 42 and partially extends out of the flipping assembly 42. The external power supply line is connected to the power supply opening 45a outside the power supply part 45, so as to avoid the problem that the external power supply lead wire is damaged when the roller 40 flips.

[0049] In the first embodiment, the power supply part 45 is connected to the shell 433 of the locking assembly 43, and the power supply part 45 and the shell 433 of the locking assembly 43 are both made of conductive material. Please refer to Figure 5 , in Figure 5 , the shell 433 of the locking assembly 43 wraps outside the ratchet wheel 431 and the ratchet tooth 432. In this embodiment, the power supply part 45 is embedded into the flipping assembly 42 and connected to the shell 433 of the locking assembly 43, so that the current on the power supply part 45 is transmitted to the conductive panel 441 through the shell 433 of the locking assembly 43. Since the shell 433 of the locking assembly does not contact the ratchet wheel 431 and the ratchet tooth 432, the normal operation of the ratchet wheel 431 and the ratchet tooth 432 is not affected during power supply. In a specific embodiment, the power supply part 45 is a block structure made of copper.

[0050] In the second embodiment, the energizing member 45 is wrapped around the locking assembly 43 and connected to the conductive panel 441, and there is a gap between the energizing member 45 and the locking assembly 43 for isolating the current. It can be understood that, unlike the first embodiment, in the second embodiment, the energizing member 45 is a structure similar to a hat, which is wrapped around the locking assembly 43 and connected to the conductive panel 441 to realize the conduction of current. Preferably, by providing a gap between the energizing member 45 and the locking assembly 43, the contact between the current and the ratchet wheel 431 and the ratchet teeth 432 in the locking assembly 43 is avoided, and the wear problem caused by long-time energization of the ratchet wheel 431 and the ratchet teeth 432 is avoided.

[0051] Please refer to Figures 2-4 In order to facilitate the driving of the roller 40 to be turned over, the turning assembly 42 includes a turning rod 421 and two clamping members 422 provided on the turning rod 421. The turning rod 421 is provided on the turning mechanism 30, and one end of each of the two clamping members 422 is provided on the turning rod 421, and the other end is fixed to the two ends of the body 41, respectively. The ratchet wheel 431 is embedded in the clamping member 422.

[0052] Specifically, the turning rod 421 is provided on the turning mechanism 30. It can be understood that the turning rod 421 is arranged on an externally provided mechanical hand, and the mechanical hand can drive the turning rod 421 to turn over. The turning manner can be to turn over up and down along the lateral direction of the electroplating tank 20, or to turn over up and down along the length direction of the electroplating tank 20, as long as the turning in and out of the roller 40 in the electroplating tank 20 can be realized.

[0053] In a specific embodiment, the clamping member 422 is a long block structure integrally formed with the turning rod 421, which is integrally formed with the turning rod 421. In this specific embodiment, there are two clamping members 422, which are respectively fixed to the turning rod 421, and the other end is connected to the rotating shaft 47 of the body 41. Further, the ratchet wheel 431 is fixedly arranged on the clamping member 422. When it is turned over along the first direction F1, the ratchet wheel 431 and the ratchet teeth 432 abut, and the turning mechanism 30 can drive the roller 40 to turn over together. When it is turned over along the second direction F2, the ratchet teeth 432 do not affect the rotation of the ratchet wheel 431, so as to keep the roller 40 stationary.

[0054] In order to facilitate the connection of the roller 40 and the two clamping members 422, in a specific embodiment, the roller 40 further includes a first cover plate 48 and a second cover plate 49. The first cover plate 48 and the second cover plate 49 are fixedly arranged at the two ends of the body 41 to block the inner cavity of the body 41.

[0055] It can be understood that the first cover plate 48 and the second cover plate 49 are part of the drum 40, the body 41 of the drum 40 is a mesh-shaped regular hexahedron structure, and the first cover plate 48 and the second cover plate 49 are plate-shaped structures at opposite ends of the drum 40 along the length direction and fixed to the body 41. Specifically, one end of the conductive column 442 is fixed to the conductive panel 441, and the other end is fixed to the first cover plate 48, so as to transmit the current of the external power supply to the first cover plate 48, and then transmit the current to the inner cavity of the drum 40 through the first cover plate 48, so that when the drum 40 is immersed in the electroplating solution, the conductive column 442 can transmit the current to the inner cavity of the drum 40 to electroplate the electroplating solution in the inner cavity of the drum 40.

[0056] Further, the first cover plate 48 is provided with a plurality of conductive holes 481, and each conductive column 442 extends into the inner cavity of the drum 40 through one of the conductive holes 481. It can be understood that by providing a plurality of conductive holes 481 in the first cover plate 48, each conductive column 442 is arranged in the inner cavity of the drum 40 through each conductive hole 481. When the drum 40 is immersed in the electroplating solution and the external power supply is started to supply power, the current of the external power supply is transmitted through the power transmission part 45-conductive panel 441-conductive column 442-inner cavity of the drum 40, so as to directly electrolyze the electroplating solution in the inner cavity of the drum 40. Preferably, by directly extending the conductive column 442 into the inner cavity of the drum 40 instead of transmitting the current through the first cover plate 48, the current is prevented from damaging the first cover plate 48 for a long time, and the current is prevented from being transmitted to the inner cavity of the drum 40 through the first cover plate 48, which has too large conductive area and affects the electroplating effect.

[0057] The above only describes the embodiments of the present application, and it should be pointed out that those skilled in the art can make improvements without departing from the creative concept of the present application, and these improvements are within the protection scope of the present application.

Claims

1. A gold plating apparatus characterized by comprising: The application relates to a rolling cylinder for electroplating. The rolling cylinder comprises a machine table, an electroplating tank arranged on the machine table and a turnover mechanism. The rolling cylinder comprises a body, a turnover assembly, a locking assembly and a conductive assembly, one end of the turnover assembly is arranged on the turnover mechanism, the other end of the turnover assembly is arranged on opposite ends of the body and is connected with an external power supply; the locking assembly comprises a ratchet wheel and a ratchet, the ratchet wheel and the ratchet are embedded into the turnover assembly; the conductive assembly comprises a conductive panel and at least two conductive columns, one end of the at least two conductive columns is arranged on the conductive panel, and the other end of the at least two conductive columns is arranged on the body. The ratchet wheel is fixed on the turnover assembly and rotates with the turnover assembly, the ratchet is fixed on the conductive panel, a locking groove is formed in the circumferential wall of the ratchet wheel from the electroplating tank to the turnover mechanism, when the turnover mechanism turns the body out of the electroplating tank, the ratchet wheel is clamped on the ratchet to fix the body and the turnover assembly, so that the metal to be electroplated in the body is turned over, and when the turnover mechanism immerses the body into the electroplating solution, the ratchet wheel and the ratchet rotate freely, so that the at least two conductive columns are located in the lower half of the body.

2. The gold electroplating apparatus of claim 1, wherein, The rolling cylinder further comprises an electrically conductive part. The electrically conductive part is embedded into the turnover assembly and is electrically connected with the conductive panel, and the electrically conductive part is provided with an electrically conductive opening for connecting the external power supply, and the current of the external power supply is introduced into the conductive panel through the electrically conductive opening.

3. The gold electroplating apparatus of claim 2, wherein, The electrically conductive part is connected to the shell of the locking assembly, and the electrically conductive part and the shell of the locking assembly are made of conductive material.

4. The gold electroplating apparatus of claim 2, wherein The electrically conductive part surrounds the locking assembly and is connected to the conductive panel, and the electrically conductive part and the locking assembly have a gap for isolating current.

5. The gold electroplating apparatus of claim 1, wherein The body is a cage structure with a regular hexagonal shape, and the body has a top surface and a bottom surface arranged opposite to each other. The top surface is provided with an opening communicating with the inner cavity of the body, and other metals are placed in the inner cavity of the body through the opening. The rolling cylinder further comprises a bearing part arranged on the bottom surface, and when the body is immersed into the electroplating solution, the at least two conductive columns are located on both sides of the central axis of the bearing part along the vertical direction of the bearing part.

6. The gold electroplating apparatus of claim 5, wherein, The rolling cylinder further comprises a rotating shaft penetrating through the body along the central axis of the body and having two ends arranged on the turnover mechanism, and the rolling cylinder is sleeved on the rotating shaft in a clearance fit mode.

7. The gold electroplating apparatus of claim 6, wherein When the rolling cylinder is observed along the side surface, the line connecting the centers of the two conductive columns and the center of the rotating shaft is an isosceles triangle.

8. The gold electroplating apparatus of claim 1, wherein, The turnover assembly comprises a turnover rod and two clamping parts arranged on the turnover rod, the turnover rod is arranged on the turnover mechanism, one end of each of the two clamping parts is arranged on the turnover rod, and the other end of each of the two clamping parts is fixed on the two ends of the body, and the ratchet wheel is embedded into the clamping parts.

9. The gold electroplating apparatus of claim 1, wherein, The rolling cylinder further comprises a first cover plate and a second cover plate. The first cover plate and the second cover plate are fixed on the two ends of the body opposite to each other to seal the inner cavity of the body.

10. The gold electroplating apparatus of claim 9, wherein, The first cover plate is provided with a plurality of conductive holes, and each conductive column extends into the inner cavity of the rolling cylinder through one of the conductive holes.

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