Energy-saving gold plating jig

Abstract

This invention relates to the field of electroplating technology, and more particularly to an energy-saving gold plating fixture, comprising: a mounting frame, a plating head mounted on the mounting frame, a connecting pipe fixedly connected to and connected to the plating head, a suction module connected to the plating head mounted on the mounting frame, the suction module being used to remove excess gold liquid from the plating head, a liquid storage shell fixedly connected to the upper side of the connecting pipe, an inlet pipe fixedly connected to and connected to the upper side of the liquid storage shell, a drain pipe fixedly connected to and connected to the liquid storage shell, the drain pipe being used to discharge excess gold liquid from the liquid storage shell to maintain a stable liquid level in the liquid storage shell, and an adjusting screw threaded through the liquid storage shell connected to the connecting pipe. This invention maintains a constant water level by overflow, solving the problem of pulsating liquid supply by pumping, maintaining stable supply pressure, thereby ensuring a stable liquid content in the plating head, maintaining uniform plating thickness on the workpiece, saving gold liquid consumption, and reducing production costs.

Description

Technical Field

[0001] This invention relates to the field of electroplating technology, and in particular to an energy-saving gold plating fixture. Background Technology

[0002] Brush plating is a special form of electroplating that does not require a plating tank. Instead, a plating head immersed in a special plating solution moves relative to the workpiece, forming a plating layer under electrolytic action. During operation, the workpiece acts as the cathode connected to the negative terminal of the power supply, while the plating head acts as the anode connected to the positive terminal. The anode, which is wrapped with plating solution, repeatedly rubs against the surface of the workpiece, causing the metal ions in the solution to undergo an electrochemical reduction reaction in the anode area in contact with the workpiece, gradually depositing as a plating layer. In brush plating for gold, the gold solution is usually pumped to the plating head. However, because the pumped gold solution is pulsating and intermittent, the gold solution content inside the plating head fluctuates continuously, making it difficult to maintain stability. This not only easily leads to uneven plating thickness and reduced quality, but also increases the ineffective loss of precious metals due to the unstable gold solution supply. Furthermore, the unstable supply of solution increases the amount of waste plating solution, increasing the burden on the plating solution treatment process, resulting in high energy consumption and increased production costs. Summary of the Invention

[0003] This invention provides an energy-saving gold plating fixture to overcome the disadvantages of uneven plating thickness and high production cost caused by using a pump-supply method in brush gold plating processes.

[0004] Technical Solution: An energy-saving gold plating fixture includes: a mounting frame, on which a plating head is mounted, the plating head being fixedly connected to and connected to a connecting pipe; a suction module connected to the plating head is mounted on the mounting frame, the suction module being used to remove excess gold liquid from the plating head; a liquid storage shell is fixedly connected to the upper side of the connecting pipe, an inlet pipe is fixedly connected to and connected to the upper side of the liquid storage shell, and a drain pipe is fixedly connected to and connected to the liquid storage shell, the drain pipe being used to discharge excess gold liquid from the liquid storage shell to maintain a stable liquid level in the liquid storage shell; an adjusting screw threaded through the liquid storage shell is connected to the connecting pipe; an adjusting component is provided inside the connecting pipe; a main connecting hole communicating with the liquid storage shell is provided on the connecting pipe; a secondary connecting hole and an adjusting hole are provided near the main connecting hole on the adjusting screw; the secondary connecting hole is connected to the main connecting hole through the connecting pipe; and the adjusting component is used to control the flow area of ​​the adjusting hole.

[0005] Furthermore, two symmetrically distributed sliding disks are provided in the middle of the liquid storage shell, the liquid inlet pipe is located between the two sliding disks, and micropores are provided at the lower part of the sliding disks.

[0006] Furthermore, the sliding disk slides in a sealed manner within the liquid storage shell, an elastic cylinder is fixedly connected between the two sliding disks, an injection pipe is fixedly connected to the liquid storage shell, the injection pipe communicates with the elastic cylinder, and the micropore is not connected with the elastic cylinder.

[0007] Furthermore, a ring-shaped, uniformly distributed elastic rope is fixed between the two sliding discs.

[0008] Furthermore, the elastic coefficient of the elastic rope is greater than that of the elastic cylinder.

[0009] Furthermore, the main connecting hole is located in the lower part of the liquid storage shell.

[0010] Furthermore, the adjusting member is fixedly connected to a connecting frame, the connecting frame passes through the adjusting screw and is fixedly connected to a floating ring, the adjusting member is frustum-shaped, and the diameter of the adjusting member gradually increases from top to bottom.

[0011] Furthermore, both the upper and lower ends of the adjusting member are fixedly connected to sealing plates, which are used to seal the adjusting hole.

[0012] Furthermore, a positioning ball is fixedly connected to the connecting frame, and a positioning ring is provided inside the adjusting screw near the positioning ball, with the positioning ring in contact with the positioning ball.

[0013] Furthermore, the center of gravity of the entire adjusting member, the connecting frame, and the floating ring is located below the positioning ball.

[0014] The advantages and positive effects of this invention compared with the prior art are: This invention maintains a constant water level by overflow, solves the problem of pulsating liquid supply by pumping, maintains stable liquid supply pressure, thereby ensuring stable liquid content in the plating head, maintaining uniform plating thickness on the workpiece, saving gold solution consumption, reducing the volume of waste plating solution, reducing the burden of plating solution treatment process, saving energy consumption, and reducing production costs.

[0015] By using a sliding plate to isolate the interior of the liquid storage tank into three spaces, the probability of fluctuations in the overall liquid level of the gold liquid in the liquid storage tank caused by the impact of the inlet fluid at the inlet pipe is reduced, thus maintaining the stability of the gold liquid levels on both sides of the liquid storage tank and maintaining the stability of the hydraulic pressure supplied to the plating head.

[0016] The system relies on a floating ring to sense the liquid level inside the storage tank. When the liquid level inside the storage tank changes due to adjustments in the inlet or outlet flow, the system automatically adjusts the gap between the adjusting component and the adjusting hole to maintain a stable liquid supply flow rate inside the plating head. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the plating head and liquid storage shell of the present invention; Figure 3 This is a three-dimensional structural diagram of the plating head and connecting tube of the present invention; Figure 4 This is a three-dimensional structural diagram of the adjusting screw and sliding disk of the present invention; Figure 5 This is a three-dimensional structural cross-sectional view of the connecting pipe and adjusting screw of the present invention; Figure 6 This is a three-dimensional structural cross-sectional view of the adjusting component and the floating ring of the present invention.

[0019] In the diagram: 1. Mounting bracket, 2. Plating head, 3. Connecting pipe, 301. Main connecting hole, 4. Suction module, 5. Liquid storage shell, 6. Liquid inlet pipe, 7. Liquid outlet pipe, 8. Adjusting screw, 801. Secondary connecting hole, 802. Adjusting hole, 9. Adjusting component, 901. Sealing plate, 10. Sliding disc, 101. Micro-hole, 11. Elastic cylinder, 12. Liquid injection pipe, 13. Elastic rope, 14. Connecting bracket, 15. Floating ring, 16. Positioning ball, 161. Positioning ring. Detailed Implementation

[0020] To make the above features and advantages of the present invention more readily understood, specific embodiments are described below in conjunction with the accompanying drawings, but the present invention is not limited thereto.

[0021] Example 1 This embodiment discloses an energy-saving gold plating fixture to solve the problems of uneven plating thickness and high production costs in the brush plating process when using a pump-supply method.

[0022] See Figures 1 to 6 An energy-saving gold plating fixture includes: a mounting frame 1, on which a plating head 2 is mounted (see...). Figure 3The plating head 2 is made of thin glass fiber as a "brush" that directly contacts the workpiece. The glass fiber is clamped and locked by an anode plate and a glass fiber plate at a 45° angle. When the gold solution enters the plating head 2, it overflows into the glass fiber. The plating head 2 is fixedly connected to and connected to a connecting pipe 3. There can be multiple connecting pipes 3, which are used to provide the plating head 2 with gold solution evenly distributed in the left and right directions. Here, there are two connecting pipes 3 symmetrically distributed on the left and right sides. The mounting frame 1 is equipped with a suction module 4 that is connected to the plating head 2. The suction module 4 is used to remove excess gold solution from the plating head 2. The gold solution is extracted and transported to a gold solution storage tank. The suction module 4 can freely adjust the suction force to control the amount of gold solution in the glass fiber of the plating head 2, achieving a uniform and gold-saving plating method. A liquid storage shell 5 is fixedly connected to the upper side of both connecting pipes 3. The liquid storage shell 5 is cylindrical, and an inlet pipe 6 is fixedly connected and connected to the middle of the upper side of the liquid storage shell 5. The inlet pipe 6 is connected to an external liquid supply pump, which is used to transport the gold solution from the storage tank to the inlet pipe 6. Drain pipes 7 are fixedly connected and connected to the upper parts of both ends of the liquid storage shell 5. The external gold liquid storage tank is connected, and the drain pipe 7 is used to drain excess gold liquid from the storage shell 5 into the storage tank to maintain a stable liquid level in the storage shell 5. An adjusting screw 8 is threaded onto the upper part of the connecting pipe 3. The adjusting screw 8 passes through the upper side of the storage shell 5, with its upper part protruding out of the storage shell 5 for easy rotation by the user. An adjusting element 9 is installed inside the connecting pipe 3. The adjusting element 9 is frustoconical, and its diameter gradually increases from top to bottom. The upper part of the connecting pipe 3 is equipped with... The liquid storage shell 5 is connected to the main connecting hole 301. The adjusting screw 8 is provided with a secondary connecting hole 801 and an adjusting hole 802 near the main connecting hole 301. The adjusting screw 8 is provided with a reduced diameter part near the secondary connecting hole 801, so that an annular space is formed between the position of the adjusting screw 8 near the secondary connecting hole 801 and the connecting pipe 3. This annular space is connected to the main connecting hole 301. The secondary connecting hole 801 is connected to the main connecting hole 301 through the above-mentioned annular space. The adjusting member 9 is used to control the flow area of ​​the adjusting hole 802.

[0023] The above settings can maintain a constant water level by overflow, solve the problem of pulsating liquid supply by pumping, maintain stable liquid supply pressure, thereby ensuring the stability of the liquid content in the plating head 2, maintaining uniform plating thickness on the workpiece, saving gold solution consumption, reducing the volume of waste plating solution, reducing the burden on the plating solution treatment process, saving energy consumption, and reducing production costs.

[0024] It should be noted that in this embodiment, the relationship between the adjusting member 9 and the connecting pipe 3 can be regarded as a fixed connection; the maximum diameter of the adjusting member 9 is not less than the diameter of the adjusting hole 802, and the adjusting member 9 completely blocks the adjusting hole 802 when no gold liquid is stored in the liquid storage shell 5.

[0025] Brush plating process: The gold solution in the storage tank is transported to the storage tank 5 through the supply pump and the inlet pipe 6, so that the liquid level in the storage tank 5 gradually rises until the liquid level is higher than the lowest point where the drain pipe 7 connects to the storage tank 5. At this point, part of the gold solution is discharged through the two drain pipes 7 and flows back into the storage tank, while the other part of the gold solution remains in the storage tank 5 and keeps the liquid level in the storage tank 5 stable.

[0026] Rotate the adjusting screw 8 to change the relative position of the adjusting hole 802 and the adjusting component 9, controlling the gold content in the plating head 2. At this time, part of the gold solution in the storage tank 5 is discharged through the drain pipe 7, and another part of the gold solution passes through the main connecting hole 301 and the secondary connecting hole 801, then through the gap between the adjusting hole 802 and the adjusting component 9, and finally enters the plating head 2 along the connecting pipe 3, so that the glass fiber in the plating head 2 is wetted by the gold solution. The remaining gold solution in the storage tank 5 remains in the storage tank 5. Turn on the suction module 4, and the suction module 4 uses suction to remove the excess gold solution in the plating head 2 and transport it back to the storage tank. The preparation work is now complete, and the gold plating begins.

[0027] During the gold plating process, excess gold solution in the storage tank 5 is continuously discharged through the drain pipe 7 to maintain the stability of the liquid level in the storage tank 5; after the gold plating is completed, the supply of liquid to the storage tank 5 is stopped, and the accumulated liquid in the storage tank 5 is extracted.

[0028] Example 2 This embodiment is a further optimization based on embodiment 1, in order to reduce the probability of fluctuations in the liquid level inside the liquid storage tank 5 caused by the impact of the incoming fluid on the gold liquid inside the liquid storage tank 5.

[0029] See Figure 4 and Figure 5 Two symmetrically distributed sliding disks 10 are provided in the middle of the liquid storage shell 5, and the liquid inlet pipe 6 is located between the two sliding disks 10. Micropores 101 are provided at the lower part of the sliding disks 10.

[0030] The above setup can isolate the interior of the liquid storage shell 5 into three spaces using the sliding plate 10, reducing the probability of fluctuations in the overall liquid surface of the gold liquid in the liquid storage shell 5 due to the impact of the inlet fluid at the inlet pipe 6, maintaining the stability of the gold liquid surface on both sides inside the liquid storage shell 5, and thus maintaining the stability of the hydraulic pressure supplied to the plating head 2.

[0031] It should be noted that in this embodiment, the sliding disk 10 and the liquid storage shell 5 can be considered as a fixed connection.

[0032] Example 3 This embodiment is a further optimization based on embodiment 2, so as to facilitate the effective utilization of the gold liquid stored in the liquid storage shell 5.

[0033] See Figure 4 and Figure 5The sliding disk 10 slides sealed within the liquid storage shell 5. An elastic cylinder 11 is fixed between the two sliding disks 10. The elastic cylinder 11 can be made of elastic rubber. An injection pipe 12 is fixed to the liquid storage shell 5. The injection pipe 12 is connected to the elastic cylinder 11 and is connected to an external liquid supply device for supplying liquid (non-metallic liquid) into the elastic cylinder 11, causing the elastic cylinder 11 to expand. The micropore 101 is not connected to the elastic cylinder 11.

[0034] The above setup enables the expansion of the elastic cylinder 11 to compress the internal space of the liquid storage shell 5 before the end of the brush plating process. Combined with the overflow method, the liquid level inside the liquid storage shell 5 can be kept stable without the need for liquid supply through the liquid inlet pipe 6. In this way, the liquid accumulated inside the liquid storage shell 5 is used for brush plating, which facilitates the discharge of the liquid accumulated inside the liquid storage shell 5.

[0035] See Figure 4 An annular, uniformly distributed elastic rope 13 is fixed between the two sliding disks 10. The elastic coefficient of the elastic rope 13 is greater than that of the elastic cylinder 11. During the process of the elastic cylinder 11 expanding and pushing the two sliding disks 10 away from each other, the elastic rope 13 provides resistance to the mutual movement of the two sliding disks 10, so that the elastic cylinder 11 can fully fill the gap between the two sliding disks 10 after expansion, thereby improving the effective utilization rate of the liquid in the liquid storage shell 5 (the effective utilization rate here refers to the ratio of the amount of liquid in the liquid storage shell 5 used for brush plating to the original amount of liquid in the liquid storage shell 5).

[0036] See Figure 5 The main connecting hole 301 is located in the lower part of the liquid storage shell 5, so that the liquid in the liquid storage shell 5 can fully submerge the main connecting hole 301, reducing the probability that the oxide layer on the surface of the gold liquid enters the plating head 2 through the main connecting hole 301, and maintaining the uniformity of the plating layer.

[0037] Example 4 This embodiment is a further optimization based on embodiment 3.

[0038] See Figures 4 to 6 The adjusting component 9 is fixedly connected to a connecting frame 14, which is an inverted "mountain" shape. The connecting frame 14 passes through the adjusting screw 8 and is fixedly connected to a float ring 15. The float ring 15 is used to sense the liquid level in the liquid storage shell 5. Both the upper and lower ends of the adjusting component 9 are fixedly connected to a sealing plate 901. The sealing plate 901 is used to seal the adjusting hole 802 after the liquid level in the liquid storage shell 5 exceeds the adaptable range of the adjusting component 9.

[0039] It should be noted that in this embodiment, when the liquid storage shell 5 is not filled with gold liquid, the lowest point of the float ring 15 is higher than the lowest point of the connection between the drain pipe 7 and the liquid storage shell 5. That is, after the liquid level in the liquid storage shell 5 is stable, the liquid level of the gold liquid in the liquid storage shell 5 is lower than the float ring 15. As the gold liquid gradually accumulates in the liquid storage shell 5, the gold liquid will not come into contact with the float ring 15, thereby maintaining the sealing state of the sealing plate 901 on the adjustment hole 802. When adjusting the flow area between the adjustment hole 802 and the adjustment component 9 in the future, it is only necessary to rotate the adjustment screw 8 to move the adjustment screw 8 down.

[0040] The above setup enables the floating ring 15 to sense the liquid level in the liquid storage tank 5. When the liquid level in the liquid storage tank 5 changes due to the adjustment of the liquid inlet or outlet, the gap between the adjusting component 9 and the adjusting hole 802 is automatically adjusted to maintain the stability of the liquid supply flow rate in the plating head 2.

[0041] When the power of the liquid supply pump changes or the power of the suction module 4 changes, the discharge flow rate of the gold liquid discharged from the storage tank 5 through the drain pipe 7 will change. This will cause the liquid level in the storage tank 5 to change. In this case, when the liquid level in the storage tank 5 rises, the liquid supply pressure at the regulating hole 802 increases, the float ring 15 moves upward, and drives the regulating component 9 to move upward through the connecting bracket 14, reducing the gap between the regulating hole 802 and the regulating component 9, thereby maintaining a stable liquid supply flow rate to the plating head 2. Conversely, when the liquid level in the storage tank 5 falls, the same principle applies.

[0042] When the liquid level in the storage tank 5 changes too much, the sealing plate 901 completely seals the adjustment hole 802, thereby reducing the probability of unstable liquid supply in the plating head 2 and ensuring the quality of the plating layer.

[0043] See Figure 6 The connecting frame 14 is fixedly connected to a positioning ball 16, the diameter of which is smaller than the inner diameter of the adjusting screw 8. A positioning ring 161 is provided inside the adjusting screw 8 near the positioning ball 16, and the positioning ring 161 contacts the positioning ball 16. The center of gravity of the adjusting component 9, the connecting frame 14, and the floating ring 15 is located below the positioning ball 16. By utilizing the contact between the positioning ball 16 and the positioning ring 161, the adjusting component 9 is adjusted to be located in the middle of the adjusting screw 8, thereby reducing the contact area between the adjusting component 9, the connecting frame 14, and the floating ring 15 and the adjusting screw 8, and reducing the influence of the friction between the adjusting component 9, the connecting frame 14, and the floating ring 15 and the adjusting screw 8 on the movement accuracy of the floating ring 15.

[0044] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An energy-saving gold-plating fixture, characterized in that, include: A mounting frame (1) is provided, on which a plating head (2) is mounted. The plating head (2) is fixedly connected to and connected to a connecting pipe (3). A suction module (4) connected to the plating head (2) is mounted on the mounting frame (1). The suction module (4) is used to remove excess gold liquid from the plating head (2). A liquid storage shell (5) is fixedly connected to the upper side of the connecting pipe (3). An inlet pipe (6) is fixedly connected to and connected to the upper side of the liquid storage shell (5). A drain pipe (7) is fixedly connected to and connected to the liquid storage shell (5). The drain pipe (7) is used to drain excess gold liquid from the liquid storage shell (5) to maintain the liquid storage. The liquid level inside the shell (5) is stable. The connecting pipe (3) is threadedly connected to an adjusting screw (8) that passes through the liquid storage shell (5). An adjusting component (9) is provided inside the connecting pipe (3). The connecting pipe (3) is provided with a main connecting hole (301) that communicates with the liquid storage shell (5). The adjusting screw (8) is provided with a secondary connecting hole (801) and an adjusting hole (802) near the main connecting hole (301). The secondary connecting hole (801) communicates with the main connecting hole (301) through the connecting pipe (3). The adjusting component (9) is used to control the flow area of ​​the adjusting hole (802).

2. The energy-saving gold-plating fixture according to claim 1, characterized in that, The liquid storage shell (5) has two symmetrically distributed sliding disks (10) in the middle, and the liquid inlet pipe (6) is located between the two sliding disks (10). The lower part of the sliding disks (10) is provided with micropores (101).

3. An energy-saving gold-plating fixture according to claim 2, characterized in that, The sliding disk (10) slides in a sealed manner within the liquid storage shell (5). An elastic cylinder (11) is fixedly connected between the two sliding disks (10). An injection pipe (12) is fixedly connected to the liquid storage shell (5). The injection pipe (12) is connected to the elastic cylinder (11). The micropore (101) is not connected to the elastic cylinder (11).

4. An energy-saving gold-plating fixture according to claim 3, characterized in that, An elastic rope (13) is fixedly connected between the two sliding discs (10) in a ring.

5. An energy-saving gold-plating fixture according to claim 4, characterized in that, The elastic coefficient of the elastic rope (13) is greater than that of the elastic cylinder (11).

6. An energy-saving gold-plating fixture according to claim 3, characterized in that, The main communication hole (301) is located in the lower part of the liquid storage shell (5).

7. An energy-saving gold-plating fixture according to claim 1, characterized in that, The adjusting member (9) is fixedly connected to a connecting frame (14), the connecting frame (14) passes through the adjusting screw (8) and is fixedly connected to a floating ring (15). The adjusting member (9) is frustum-shaped, and the diameter of the adjusting member (9) gradually increases from top to bottom.

8. An energy-saving gold-plating fixture according to claim 7, characterized in that, Both ends of the adjusting member (9) are fixed with sealing plates (901), which are used to seal the adjusting hole (802).

9. An energy-saving gold-plating fixture according to claim 7, characterized in that, The connecting frame (14) is fixedly connected to a positioning ball (16), and a positioning ring (161) is provided inside the adjusting screw (8) near the positioning ball (16), and the positioning ring (161) is in contact with the positioning ball (16).

10. An energy-saving gold-plating fixture according to claim 9, characterized in that, The center of gravity of the entire adjusting member (9), the connecting frame (14), and the floating ring (15) is located below the positioning ball (16).

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