Metal product surface electroplating processing equipment

Abstract

The invention relates to the technical field of metal product processing, and discloses metal product surface electroplating processing equipment which is characterized in that a rotating gear is rotatably mounted on one side of the outer surface of a placement frame, an upper meshing gear and a lower meshing gear are rotatably mounted on the two sides of the inner wall of an acid soaking pool, and meshing chains are meshed with the outer surfaces of the upper meshing gear and the lower meshing gear; on the basis of lifting meshing of the rotating gear and the meshing chain, the lower meshing gear is driven to rotate, the connecting rod synchronously rotates along with the lower meshing gear through the sliding block, and by means of swinging of the ball shaft and the directional sliding effect of the guide rail and the second sliding block, the lower meshing gear is driven to rotate, so that the lower meshing gear is driven to rotate. And the stirring plate is effectively driven to do front-back translational motion in the acid soaking pool, the effect of swinging acid water in the acid soaking pool is achieved, it is guaranteed that after the containing frame descends into the acid soaking pool, on the premise that the metal product rotates, the acid water keeps active, and the acid removing effect on the surface of the metal product is improved.

Description

Technical Field

[0001] This invention relates to the field of metal product processing technology, specifically to an electroplating processing equipment for metal product surfaces. Background Technology

[0002] Electroplating is the process of depositing a thin layer of another metal or alloy onto the surface of certain metals using the principle of electrolysis. It is a process that uses electrolysis to attach a metal film to the surface of metal or other material parts, thereby preventing metal oxidation, improving wear resistance, conductivity, reflectivity and corrosion resistance, and enhancing aesthetics. The outer layer of many coins is also electroplated. In the production process of metal products, it is usually necessary to perform electroplating processing on the surface of the produced metal products.

[0003] In existing technologies, the acid soaking treatment of metal products before electroplating is usually carried out according to the process of pretreatment-hanging and sinking-static immersion-posttreatment: First, the oil stains on the surface of the workpiece are initially removed by alkaline degreasing, hot water washing and cold water washing. Then, the metal products are vertically sunk from top to bottom into a static acid tank made of acid-resistant material (such as PP, steel lined with rubber) at fixed intervals using rigid hangers (such as stainless steel hooks or frames). The acid solution is mostly hydrochloric acid, sulfuric acid or mixed acid system (concentration 5%–20%), and a small amount of corrosion inhibitor is often added to prevent corrosion. To inhibit over-corrosion, the immersion temperature is controlled at 40–60℃ and the time is 10–30 minutes. The workpiece and acid solution remain stationary throughout the process. During this period, the surface oxide scale and rust are dissolved and removed by the natural chemical reaction between the acid solution and the oxide scale. The hydrogen gas generated by the reaction naturally floats to the top and dissipates. The oxide scale, sludge and impurities deposited at the bottom of the tank cannot be disturbed. After the pickling meets the standards, the workpiece is lifted out of the rack by a crane. Then, it undergoes multiple stages of water washing, alkaline neutralization (such as sodium carbonate solution) and drying to complete the acid soaking process and enter the subsequent electroplating process.

[0004] However, current acid pickling treatments for metal products typically involve directly immersing the metal products in an acid bath from top to bottom by hanging them up. During the acid pickling process, both the metal products and the acid water are in a static state, which can easily lead to insufficient acid penetration, resulting in oxide scale and under-pickling. At the same time, the acid concentration and temperature in the static acid water are prone to stratification, and the sediment at the bottom of the tank cannot be disturbed, which can easily cause over-pickling at the contact points with the workpiece, resulting in a rough surface. This is especially true for thin metal parts, which are prone to corrosion perforation and reduced strength. In addition, the hydrogen gas produced by the reaction cannot dissipate quickly, and a large number of bubbles adhere to the surface of the workpiece, forming a physical isolation layer. This not only hinders the continued pickling reaction but also exacerbates the penetration of hydrogen atoms into the metal matrix, leading to an increased risk of hydrogen embrittlement and an increased probability of brittle fracture in high-strength steel, spring parts, and other components.

[0005] Therefore, this invention proposes a metal product surface electroplating processing equipment to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide an electroplating processing device for metal products to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a metal product surface electroplating processing equipment, including a base and an acid soaking tank, wherein the acid soaking tank is fixedly installed at the center of the top of the base.

[0008] Support columns are fixedly installed on both sides of the top of the base. A hydraulic cylinder is fixedly installed at the center of the top of the support columns. Fixed plates are fixedly installed on both sides of the top of the support columns. An installation plate is fixedly installed at the bottom of the fixed plates. A hydraulic telescopic rod is fixedly installed at the bottom of the installation plate. A placement frame is fixedly installed at the bottom of the hydraulic telescopic rod. A rotating cylinder is rotatably installed on one side inside the placement frame. Contact blocks are fixedly installed around the outer surface of the rotating cylinder. Metal products are movably fitted onto the surface of the contact blocks. The contact blocks are evenly distributed around the outer surface of the rotating cylinder and contact and engage with the inner wall of the metal products. This provides stable support and positioning for the metal products, preventing them from shaking or falling off during movement or processing, and ensuring the normal deacidification treatment of the metal products.

[0009] A rotating gear is rotatably mounted on one side of the outer surface of the placement rack, and an upper meshing gear and a lower meshing gear are rotatably mounted on both sides of the inner wall of the acid soaking tank. The outer surfaces of the upper and lower meshing gears are meshed with meshing chains. The surface of the meshing chain engages with the surface of the rotating gear, allowing the outer wall of the metal product to come into full and uniform contact with the acid solution in the acid soaking tank, thus completing a thorough acid soaking pretreatment. After the acid soaking process is completed, the hydraulic telescopic rod retracts, causing the placement rack to rise. The rotating gear then engages with the meshing chain again, driving the rotating cylinder to rotate in the opposite direction. This not only helps to drain the acid solution from the surface of the metal product but also prepares it for the subsequent electroplating process.

[0010] Preferably, a groove is formed around the surface of the lower meshing gear, a slider is slidably mounted on the surface of the groove, a connecting rod is fixedly mounted on one side of the surface of the slider, and a ball shaft is fixedly mounted on one side of the surface of the connecting rod.

[0011] Preferably, a toggle plate is fixedly installed on one side of the ball shaft surface, a guide rail is fixedly installed at the bottom of the meshing chain, positioning rods are fixedly installed on both sides of the guide rail surface, a slider two is slidably sleeved on the surface of the positioning rod, a toggle plate is fixedly installed on one side of the surface of the slider two, and a return spring is fixedly sleeved on one side of the surface of the positioning rod. When the acid soaking process is completed, when the placement frame drives the rotating gear to rise and disengage from the meshing chain, the compressed return spring will release its elastic potential energy, pushing the slider two to return to its original position along the positioning rod, and then driving the ball shaft to return to its original position through the toggle plate, so that the rotating gear and the meshing chain can be smoothly separated, ensuring that the entire lifting and transmission linkage process is smooth and without jamming.

[0012] Preferably, the slider rotates via the lower meshing gear, rotates on the surface of the groove with the lower meshing gear, and synchronously drives the connecting rod to swing, and drives the actuating plate to swing via the ball shaft.

[0013] Preferably, the actuating plate swings via a ball shaft, slides on the guide rail surface via slider two and positioning rod, and slides in contact with the surface of the return spring. The spherical connection characteristic of the ball shaft can alleviate the motion interference between the swing of the connecting rod and the linear sliding of the actuating plate and slider two, allowing the two different trajectories to work together smoothly. In addition, during the process of the return spring pushing slider two to reset, the ball shaft can also buffer the force of the component during reset through its own rotation and fine adjustment, ensuring the stability and continuity of the entire auxiliary transmission structure.

[0014] Preferably, a sleeve is slidably fitted onto one side of the rotating cylinder surface, a positioning sleeve is fixedly installed on one side of the sleeve surface, and a transmission rod is rotatably installed on one side of the placement rack surface. The transmission rod can effectively connect the rotating cylinders on both sides with the rotating cylinder in the middle, ensuring the comprehensive deacidification of the metal products clamped inside the three sets of placement racks.

[0015] Preferably, the placement rack is raised and lowered at the top of the acid soaking tank by a hydraulic cylinder and a hydraulic telescopic rod, which causes the metal products clamped inside the placement rack to be immersed in the acid soaking tank.

[0016] Preferably, the rotating gear and the meshing chain are arranged in a staggered parallel pattern. When the placement frame descends into the acid soaking tank, it drives the rotating gear to mesh with the surface of the meshing chain.

[0017] Preferably, the rotating gear meshes with the meshing chain, synchronously driving the rotating cylinder and transmission rod to rotate. This causes the metal products fitted onto the surface of the rotating cylinder to rotate inside the acid soaking tank, converting the linear downward motion of the placement frame into the rotational motion of the rotating gear. This, in turn, drives the rotating cylinder inside the placement frame to rotate synchronously. The contact blocks on the outer surface of the rotating cylinder rotate along with the metal products they are fitted onto, ensuring that the outer wall of the metal products can fully contact the acid solution in the acid soaking tank from all directions without any blind spots. This avoids insufficient acid soaking in certain areas, ensuring that the oxide layer, oil stains, and other impurities on the surface of the metal products are uniformly removed, thus improving the quality of the acid soaking pretreatment.

[0018] Preferably, the contact blocks are evenly distributed around the outer surface of the rotating cylinder and engage with the inner wall of the metal product.

[0019] Compared with the prior art, the beneficial effects of the present invention are: By evenly distributing contact blocks on the outer surface of the rotating cylinder and engaging with the inner wall of the metal product, stable positioning of the metal product is achieved, preventing it from shaking and falling off during processing. The lifting and meshing design of the rotating gear and the meshing chain cleverly transforms the linear lifting motion of the placement frame into the rotational motion of the rotating cylinder, allowing the outer wall of the metal product to come into full and even contact with the acid solution in the acid soaking tank. This ensures the uniformity of the acid soaking treatment, improves the pretreatment effect of the metal product surface before electroplating, and lays a good foundation for the subsequent electroplating process.

[0020] Based on the lifting and lowering engagement of the rotating gear and the meshing chain, the lower meshing gear is driven to rotate, and the connecting rod rotates synchronously with the lower meshing gear through the slider. By utilizing the swing of the ball shaft and the directional sliding action of the guide rail and the second slider, the actuating plate is effectively driven to move back and forth inside the acid soaking tank. This creates a swinging effect on the acid water inside the acid soaking tank, ensuring that the acid water remains active even after the placement frame descends into the acid soaking tank and the metal products rotate, thereby improving the deacidification effect on the surface of the metal products.

[0021] The metal product surface electroplating processing equipment proposed in this invention achieves [the desired results]. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the connection structure of the base, acid soaking tank, support column and hydraulic cylinder of the present invention. Figure 2 This is a schematic diagram of the connection structure of the hydraulic telescopic rod, the placement frame, and the transmission rod of the present invention; Figure 3 for Figure 2 Enlarged structural diagram at point A; Figure 4 This is a schematic diagram of the connection structure between the placement frame and the rotating gear of the present invention; Figure 5 This is a schematic diagram of the connection structure of the upper meshing gear, lower meshing gear, meshing chain, and connecting rod of the present invention; Figure 6 This is a schematic diagram of the connection structure of the acid soaking tank, hydraulic telescopic rod, and placement frame of the present invention; Figure 7 for Figure 6 Enlarged structural diagram at point B; Figure 8 This is a schematic diagram of the rotating gear and meshing chain connection structure of the present invention.

[0023] In the diagram: 100, base; 101, acid soaking tank; 102, support column; 103, hydraulic cylinder; 104, fixing plate; 105, mounting plate; 106, hydraulic telescopic rod; 107, placement rack; 108, rotating cylinder; 109, contact block; 110, sleeve; 111, positioning sleeve; 112, transmission rod; 200. Rotating gear; 201. Upper meshing gear; 202. Lower meshing gear; 203. Meshing chain; 204. Slide groove; 205. Slider one; 206. Connecting rod; 207. Ball shaft; 208. Actuating plate; 209. Guide rail; 210. Positioning rod; 211. Slider two; 212. Return spring. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Please see Figures 1-3 A metal product surface electroplating processing equipment includes a base 100 and an acid soaking tank 101, wherein the acid soaking tank 101 is fixedly installed at the top center of the base 100.

[0026] Support columns 102 are fixedly installed on both sides of the top of the base 100. A hydraulic cylinder 103 is fixedly installed at the center of the top of the support column 102. Fixing plates 104 are fixedly installed on both sides of the top of the support column 102. Mounting plate 105 is fixedly installed at the bottom of the fixing plate 104. A hydraulic telescopic rod 106 is fixedly installed at the bottom of the mounting plate 105. A placement frame 107 is fixedly installed at the bottom of the hydraulic telescopic rod 106. A rotating cylinder 108 is rotatably installed on one side inside the placement frame 107. Contact blocks 109 are fixedly installed around the outer surface of the rotating cylinder 108. Metal products are movably sleeved on the surface of the contact blocks 109.

[0027] In this process, the present solution sets a hydraulic telescopic rod 106 and a placement frame 107 at the top of the acid soaking tank 101. The main purpose is to drive the extension and retraction of the hydraulic telescopic rod 106 through the hydraulic cylinder 103, control the placement frame 107 and the metal products on the frame to descend into the acid soaking tank 101 for acid soaking treatment, or to rise out of the acid soaking tank 101, thereby realizing the automated loading and unloading operation of the metal product acid soaking process and improving processing efficiency.

[0028] The contact blocks 109 are evenly distributed around the outer surface of the rotating cylinder 108 and engage with the inner wall of the metal product. This provides stable support and positioning for the metal product, preventing it from shaking or falling off during movement or processing, and ensuring the normal deacidification treatment of the metal product.

[0029] In addition, this solution includes a rotating cylinder 108 and a contact block 109 inside the placement rack 107. The function of the rotating cylinder 108 is to drive the metal product sleeved on the contact block 109 to rotate synchronously, so that the outer wall of the metal product can be evenly and fully contacted with the acid in the acid soaking tank 101, ensuring the uniformity of the acid soaking treatment, improving the pretreatment effect of the metal product surface before electroplating, and laying a good foundation for the subsequent electroplating process.

[0030] And combined with the appendix Figures 3-5 As shown, a rotating gear 200 is rotatably mounted on one side of the outer surface of the placement rack 107, and an upper meshing gear 201 and a lower meshing gear 202 are rotatably mounted on both sides of the inner wall of the acid soaking tank 101. A meshing chain 203 is meshed on the outer surfaces of the upper meshing gear 201 and the lower meshing gear 202, and the surface of the meshing chain 203 engages with the surface of the rotating gear 200 in a lifting and lowering manner.

[0031] During the acid soaking operation, the hydraulic cylinder 103 drives the hydraulic telescopic rod 106 to extend downward, which moves the placement rack 107 containing the metal products into the acid soaking tank 101. During this process, the rotating gear 200 on one side of the outer surface of the placement rack 107 will descend accordingly, and form a lifting and lowering meshing transmission with the meshing chain 203 meshed with the upper meshing gear 201 and the lower meshing gear 202 on both sides of the inner wall of the acid soaking tank 101.

[0032] The placement rack 107 is raised and lowered at the top of the acid soaking tank 101 by a hydraulic cylinder 103 and a hydraulic telescopic rod 106, which drives the metal products locked inside the placement rack 107 to be immersed in the acid soaking tank 101. The rotating gear 200 and the meshing chain 203 are distributed in a staggered parallel manner. When the placement rack 107 descends into the acid soaking tank 101, it drives the rotating gear 200 to mesh with the surface of the meshing chain 203.

[0033] As the placement rack 107 gradually moves downward, the rotating gear 200 rotates under the meshing action of the meshing chain 203, and synchronously drives the rotating cylinder 108 inside the placement rack 107 to rotate. The contact blocks 109 evenly distributed on the outer surface of the rotating cylinder 108 will rotate along with the metal products they are clamped, so that the outer wall of the metal products comes into full and uniform contact with the acid in the acid soaking tank 101, completing a thorough acid soaking pretreatment. After the acid soaking process is completed, the hydraulic telescopic rod 106 retracts and drives the placement rack 107 to rise. The rotating gear 200 meshes with the meshing chain 203 again, driving the rotating cylinder 108 to rotate in the opposite direction. This not only helps to drain the acid from the surface of the metal products, but also prepares them for the subsequent electroplating process.

[0034] As described above, when the placement rack 107 descends into the acid soaking tank 101 via the hydraulic telescopic rod 106, the rotating gear 200 engages with the surface of the meshing chain 203. This engagement transforms the linear descent of the placement rack 107 into rotational motion, thereby driving the rotating cylinder 108 inside the placement rack 107 to rotate synchronously. The contact block 109 on the outer surface of the rotating cylinder 108 rotates along with the metal product it is holding, allowing the metal product to... The wall can fully contact the acid in the acid soaking tank 101 in all directions without dead angles, avoiding insufficient local acid soaking and ensuring that the oxide layer, oil stains and other impurities on the surface of metal products are evenly removed, thus improving the quality of acid soaking pretreatment. At the same time, this design of driving rotation through descent does not require an additional drive motor. It cleverly utilizes the lifting power of the hydraulic telescopic rod 106, which simplifies the overall structure of the equipment, reduces the manufacturing cost and maintenance difficulty, and enables linkage between lifting and rotation, thereby improving the automation level and processing efficiency of the acid soaking process.

[0035] From the appendix Figures 6-7 As shown, a toggle plate 208 is fixedly installed on one side of the ball shaft 207, a guide rail 209 is fixedly installed at the bottom of the meshing chain 203, positioning rods 210 are fixedly installed on both sides of the guide rail 209, a slider 211 is slidably sleeved on the surface of the positioning rod 210, a return spring 212 is fixedly sleeved on one side of the toggle plate 208, and a return spring 212 is fixedly sleeved on one side of the positioning rod 210.

[0036] The use of the actuating plate 208, in conjunction with the auxiliary structure consisting of the ball shaft 207, guide rail 209, positioning rod 210, slider 211, and return spring 212, ensures the stability and accuracy of the meshing transmission between the rotating gear 200 and the meshing chain 203, while also enabling flexible switching of the transmission state. When the placement frame 107 drives the rotating gear 200 to descend and engage with the meshing chain 203, the ball shaft 207 drives the actuating plate 208 to move down synchronously. The actuating plate 208 pushes the slider 211 to slide on the positioning rod 210 of the guide rail 209 and compresses the return spring 212. This process can buffer the impact force at the moment of engagement between the rotating gear 200 and the meshing chain 203, avoiding tooth surface wear or meshing misalignment due to hard contact. When the acid soaking process is completed, when the placement frame 107 drives the rotating gear 200 to rise and disengage from the meshing chain 203, the compressed return spring 212 will release its elastic potential energy, pushing the slider 211 to return to its original position along the positioning rod 210. Then, the actuating plate 208 drives the ball shaft 207 to return to its original position, allowing the rotating gear 200 to smoothly separate from the meshing chain 203, ensuring that the entire lifting and transmission linkage process is smooth and without jamming.

[0037] Combined with the appendix Figure 8 As shown, the lower meshing gear 202 has a sliding groove 204 around its surface. A slider 205 is slidably mounted on the surface of the sliding groove 204. A connecting rod 206 is fixedly mounted on one side of the surface of the slider 205. A ball shaft 207 is fixedly mounted on one side of the surface of the connecting rod 206.

[0038] The slider 205 rotates through the lower meshing gear 202, and rotates on the surface of the slide groove 204 along with the lower meshing gear 202, and synchronously drives the connecting rod 206 to swing, and drives the actuating plate 208 to swing through the ball shaft 207.

[0039] The actuating plate 208 swings via the ball shaft 207, slides on the surface of the guide rail 209 via the slider 211 and the positioning rod 210, and slides in contact with the surface of the return spring 212.

[0040] The function of the ball shaft 207 is that when the meshing gear 202 rotates, the slider 205 in the groove 204 on its surface will move accordingly and drive the connecting rod 206 to swing. The ball shaft 207 connects the connecting rod 206 and the actuating plate 208, smoothly transmitting the swinging motion of the connecting rod 206 to the actuating plate 208. At the same time, since the actuating plate 208 is also connected to the slider 211, and the slider 211 needs to slide linearly along the positioning rod 210 on the guide rail 209, the spherical connection characteristic of the ball shaft 207 can alleviate the motion interference between the swinging of the connecting rod 206 and the linear sliding of the actuating plate 208 and the slider 211, allowing the two different trajectories to be smoothly coordinated. In addition, during the process of the return spring 212 pushing the slider 211 to reset, the ball shaft 207 can also buffer the force of the component during reset through its own rotation and fine adjustment, ensuring the stability and continuity of the entire auxiliary transmission structure.

[0041] Finally, combined with the appendix Figure 2 As shown, a sleeve 110 is slidably sleeved on one side of the surface of the rotating cylinder 108, a positioning sleeve 111 is fixedly installed on one side of the surface of the sleeve 110, and a transmission rod 112 is rotatably installed on one side of the surface of the placement frame 107.

[0042] Since there are three sets of placement racks 107, the two outer sets of placement racks 107 can rotate the inner rotating cylinders 108 by meshing with the rotating gears 200 and the meshing chain 203. This allows the metal products clamped on the surface of the rotating cylinders 108 to rotate and be deacidified inside the acid soaking tank 101. However, the placement rack 107 in the middle position does not have a transmission structure, which means that the metal products clamped inside cannot make active contact with the acid water inside the acid soaking tank 101, thus reducing the deacidification process of the metal products. Therefore, by using the transmission rod 112, the rotating cylinders 108 on both sides can be connected in series with the rotating cylinder 108 in the middle, ensuring the comprehensive deacidification of the metal products clamped inside the three sets of placement racks 107.

[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A metal product surface electroplating processing equipment, comprising a base (100) and an acid soaking tank (101), wherein the acid soaking tank (101) is fixedly installed at the center of the top of the base (100); Its features are: Support columns (102) are fixedly installed on both sides of the top of the base (100). A hydraulic cylinder (103) is fixedly installed at the center of the top of the support column (102). Fixing plates (104) are fixedly installed on both sides of the top of the support column (102). An installation plate (105) is fixedly installed at the bottom of the fixing plate (104). A hydraulic telescopic rod (106) is fixedly installed at the bottom of the installation plate (105). A placement frame (107) is fixedly installed at the bottom of the hydraulic telescopic rod (106). A rotating cylinder (108) is rotatably installed on one side inside the placement frame (107). Contact blocks (109) are fixedly installed around the outer surface of the rotating cylinder (108). Metal products are movably sleeved on the surface of the contact blocks (109). A rotating gear (200) is rotatably mounted on one side of the outer surface of the placement rack (107). An upper meshing gear (201) and a lower meshing gear (202) are rotatably mounted on both sides of the inner wall of the acid soaking tank (101). A meshing chain (203) is meshed on the outer surfaces of the upper meshing gear (201) and the lower meshing gear (202). The surface of the meshing chain (203) is vertically meshed with the surface of the rotating gear (200).

2. The metal product surface electroplating processing equipment according to claim 1, characterized in that: The lower meshing gear (202) has a sliding groove (204) around its surface. A slider (205) is slidably mounted on the surface of the sliding groove (204). A connecting rod (206) is fixedly mounted on one side of the surface of the slider (205). A ball shaft (207) is fixedly mounted on one side of the surface of the connecting rod (206).

3. The metal product surface electroplating equipment according to claim 2, characterized in that: A toggle plate (208) is fixedly installed on one side of the ball shaft (207). A guide rail (209) is fixedly installed at the bottom of the meshing chain (203). A positioning rod (210) is fixedly installed on both sides of the guide rail (209). A slider (211) is slidably sleeved on the surface of the positioning rod (210). A return spring (212) is fixedly sleeved on one side of the surface of the toggle plate (208).

4. The metal product surface electroplating equipment according to claim 3, characterized in that: The slider (205) rotates through the lower meshing gear (202), rotates on the surface of the groove (204) with the lower meshing gear (202), and synchronously drives the connecting rod (206) to swing, and drives the actuating plate (208) to swing through the ball shaft (207).

5. The metal product surface electroplating equipment according to claim 4, characterized in that: The actuating plate (208) swings via the ball shaft (207), slides on the surface of the guide rail (209) via the slider (211) and the positioning rod (210), and slides in contact with the surface of the reset spring (212).

6. The metal product surface electroplating equipment according to claim 1, characterized in that: A sleeve (110) is slidably sleeved on one side of the surface of the rotating cylinder (108), a positioning sleeve (111) is fixedly installed on one side of the surface of the sleeve (110), and a transmission rod (112) is rotatably installed on one side of the surface of the placement rack (107).

7. The metal product surface electroplating processing equipment according to claim 1, characterized in that: The placement rack (107) is raised and lowered at the top of the acid soaking tank (101) by a hydraulic cylinder (103) and a hydraulic telescopic rod (106), which causes the metal products locked inside the placement rack (107) to be immersed in the acid soaking tank (101).

8. The metal product surface electroplating processing equipment according to claim 7, characterized in that: The rotating gear (200) and the meshing chain (203) are arranged in a staggered parallel pattern. When the placement frame (107) descends into the acid soaking tank (101), it drives the rotating gear (200) to mesh with the surface of the meshing chain (203).

9. The metal product surface electroplating processing equipment according to claim 8, characterized in that: The rotating gear (200) rotates by meshing with the meshing chain (203), which synchronously drives the rotating cylinder (108) and the transmission rod (112) to rotate, so that the metal products sleeved on the surface of the rotating cylinder (108) rotate inside the acid soaking tank (101).

10. The metal product surface electroplating processing equipment according to claim 9, characterized in that: The contact blocks (109) are evenly distributed around the outer surface of the rotating cylinder (108) and are engaged with the inner wall of the metal product.

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