Electroplating device and process for anti-corrosion coating on metal surface
By designing an integrated electroplating device, integrating functions such as loading, pretreatment, decontamination, rust removal, electroplating, passivation and drying, the inefficiency problem caused by the separation of existing electroplating devices is solved, and an efficient and integrated anti-corrosion coating process for metal surfaces is achieved.
Patent Information
- Application Number
- CN202510132004.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-06
- Publication Date
- 2025-03-07
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In the existing electroplating device, the steps such as passivation, water washing and drying are carried out separately, resulting in low integrity and coordination, which in turn reduces the electroplating efficiency of metal workpieces.
An integrated electroplating device is designed, including feeding, pretreatment, decontamination, rust removal, electroplating, passivation and drying functions. Through the coordinated work of the robot arm and the conveyor belt, multiple processes are realized simultaneously.
It improves the electroplating efficiency of metal workpieces, enhances the integrity and coordination of the device, and ensures the high quality and corrosion resistance of the plating.
Smart Images
Figure CN119571425A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of electroplating technology, and specifically to an electroplating device and process for an anti-corrosion coating on a metal surface. Background Art
[0002] Electroplating is a surface treatment process that uses the principle of electrolysis to deposit a metal coating on the surface of metal or other materials. First, the workpiece is pre-treated by surface leveling to remove burrs, scratches, etc., and the workpiece surface is cleaned by degreasing, pickling and rust removal. Then it is placed in an electroplating tank filled with a specific electroplating solution, with the workpiece as the cathode and a DC power supply connected. The metal ions in the electroplating solution move to the cathode under the action of the electric field, and after obtaining electrons, they are reduced to metal atoms and uniformly deposited on the surface of the workpiece to form a coating. Finally, after post-plating treatment such as water washing, passivation, and drying, the corrosion resistance of the coating is improved. It can enhance the appearance, corrosion resistance, wear resistance and other properties of the material, and is widely used in many industries.
[0003] However, current electroplating devices usually perform the passivation, water washing and drying steps separately, and the pre-plating treatment of metal workpieces is usually also performed separately, and the processes of taking, loading and unloading metal workpieces are usually also separated, resulting in low integrity and coordination of the device, resulting in low electroplating efficiency of metal workpieces. Summary of the invention
[0004] In response to the shortcomings of the prior art, the present application provides an electroplating device and process for anti-corrosion coating on a metal surface, which solves the problem that current electroplating devices usually perform passivation, water washing and drying steps separately, and separate the processes of taking, loading and unloading metal workpieces, resulting in low electroplating efficiency for metal workpieces.
[0005] To achieve the above objectives, the present application is implemented through the following technical solutions: an electroplating device for an anti-corrosion coating on a metal surface, comprising: A pedestal, a storage box is arranged on the top side of the pedestal, a fixing column is arranged on the left side of the pedestal, and a loading assembly for loading metal plates is arranged on the top side of the fixing column; A base, wherein two discs are rotatably connected to the top side of the base, a guide rail is fixedly connected to the top side of the outer wall of the base, the two discs are connected by a chain, a conveyor belt is fixedly connected to the outer wall of the chain, a plurality of conveying blocks for conveying metal plates are fixedly connected to the outer wall of the conveyor belt, the conveying blocks are located on the top side of the guide rail, and a pretreatment component for deburring the metal plate is arranged on the top side of the base; A water tank, wherein a pillar is fixedly connected to the middle end of the interior of the water tank, a turntable is rotatably connected to the top end of the pillar, a drying pool for drying metal plates is fixedly connected to the middle end of the outer wall of the pillar, a processing component for sequentially processing the metal plates is arranged on the outer wall of the water tank, and a cleaning component for cleaning the metal plates is fixedly connected to the interior of the water tank.
[0006] Preferably, the loading assembly includes a rotating column rotatably connected to the top of the fixed column, a rotating plate is fixedly connected to the outer wall of the rotating column, a first connecting rod is fixedly connected to the top side of the rotating column, a first round rod is fixedly connected to the bottom side of the left end of the first connecting rod, and the bottom end of the first round rod is fixedly connected to the top side of the disc on the left side.
[0007] Preferably, the pretreatment component includes two supports arranged on the front side of the base, the left support and the top side of the base are rotatably connected to a reciprocating screw, and the right support and the top side of the base are fixedly connected to a limiting rod, the limiting rod and the reciprocating screw are connected by a scraper, and the reciprocating screw is connected to the left disc by a transmission assembly.
[0008] Preferably, the transmission assembly includes a pulley fixedly connected to the top end of the reciprocating screw, and the pulleys are connected by belts, a gear is fixedly connected to the top side of the outer wall of the reciprocating screw on the front side, a plurality of teeth are fixedly connected to the outer wall of the turntable, the teeth and the gears are meshed with each other, a second connecting rod is fixedly connected to the top side of the pulley on the rear side, a second round rod is fixedly connected to the bottom side of the left end of the second connecting rod, and the bottom end of the second round rod is fixedly connected to the top side of the disc on the left side.
[0009] Preferably, the processing component includes a decontamination tank for removing oil from the surface of the metal plate and a passivation tank for passivating the metal plate, which are arranged on the right side of the water tank. A rust removal tank for removing rust from the metal plate and an electroplating tank for electroplating the metal plate are arranged on the left side of the water tank. The decontamination tank, rust removal tank, electroplating tank and passivation tank are arranged in a clockwise direction.
[0010] Preferably, the cleaning assembly includes a nozzle fixedly connected to the top side of the inner wall of the water tank, the top side of the nozzle is fixedly connected to a water pipe, the water pipe is externally connected to a water delivery device, and the bottom side of the water tank is fixedly connected to a drain pipe.
[0011] Preferably, mechanical arms for clamping metal plates are installed on the bottom sides of the turntable and the rotating plate.
[0012] Preferably, a motor is installed on the inner top side of the pillar, and the driving end of the motor is fixedly connected to the bottom side of the turntable.
[0013] Preferably, two clamping plates for clamping the metal plate are fixedly connected to the top side of the conveying block, and the drying tank is provided with a through groove for allowing the metal plate to enter the interior of the drying tank.
[0014] The present application also proposes an electroplating process for a metal surface anti-corrosion coating, comprising the following steps: Step 1: First, the robotic arm located on the turntable and above the left side of the guide rail will clamp the metal plate on the conveying block located on the left side of the guide rail and below the robotic arm. At the same time, the robotic arms located in the decontamination tank, rust removal tank, electroplating tank, passivation tank and water tank will lift and pull the metal plate out. Then the motor drives the turntable to rotate, so that the robotic arm rotates to the decontamination tank. Then, each robotic arm will put the metal plate into the decontamination tank, rust removal tank, electroplating tank, passivation tank and water tank below each position to perform decontamination, rust removal, electroplating, passivation and cleaning respectively. In the last step, the metal plate pulled out from the passivation tank will be taken down by the staff for subsequent processing. The cleaning process needs to be carried out after the three processes of decontamination, rust removal and electroplating. When the metal plate is pulled out and the turntable drives the mechanical arm to rotate, the mechanical arm will be tilted at a certain angle, so that the metal plate enters the drying tank through the through slot during rotation, and then the metal plate is dried on both sides by the drying tank to prevent the water after cleaning from being retained on the surface of the metal plate and affecting the subsequent processing, so as to realize the operation of multiple mechanical arms on multiple metal plates in different processes; Step 2: Since the motor in step 1 drives the turntable to rotate, due to the teeth on the turntable meshing with the gear, the front reciprocating screw is driven to rotate while the turntable rotates. When the front reciprocating screw rotates, the rear reciprocating screw is driven to rotate through the pulley and belt, so that the two scrapers move up and down, thereby pre-processing the metal plate between the two scrapers to remove burrs; Step 3: Due to the rotation of the pulley in step 2, the second connecting rod will be driven to rotate around the center of the pulley, and then the second round rod will be driven to move, so that the left disc will be driven to rotate through the movement of the second round rod, and then the chain and the conveyor belt will be driven to rotate, so that the conveying block will gradually move on the guide rail, so that the conveying block will pass between the two scrapers and the mechanical arm on the upper left side of the guide rail in turn, and the conveying block that has been clamped by the metal plate will return to the right side of the guide rail, so that the conveying block completes a whole feeding process of the metal plate; Step 4. Since the disc on the right will rotate when the disc on the left drives the chain to rotate in step 3, when the disc on the right rotates, it will drive the first round rod to rotate around the center of the disc on the right, so that the first connecting rod moves to drive the rotating column to rotate, so that the rotating plate rotates, so that the mechanical arm on the left side of the rotating plate with the metal plate placed on it rotates to the right, and the mechanical arm on the right side that clamps the metal plate rotates to the left, so that the two mechanical arms respectively perform the process of picking up and loading materials.
[0015] The present application provides an electroplating device and process for anti-corrosion coating on metal surface, which has the following beneficial effects: 1. The present application combines the steps of taking, loading and delivering metal plates so that several steps can be performed simultaneously, making the overall process of the device more compact and orderly, and improving the integrity and coordination of the device in transporting metal plates.
[0016] 2. The present application adopts a decontamination tank, a rust removal tank, an electroplating tank and a passivation tank arranged clockwise, and sets a water tank between adjacent tanks, so that cleaning can be performed after each step to prevent affecting the subsequent process. At the same time, multiple robotic arms are used to allow multiple metal plates to undergo different processes at the same time, thereby improving the electroplating efficiency of the metal plates.
[0017] 3. The present application provides two scrapers and transports the metal plate between the two scrapers through a conveying block, so that the scrapers can scrape off burrs on the surface of the metal plate, thereby improving the quality of the electroplated metal plate. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 A three-dimensional diagram of an electroplating device for an anti-corrosion coating on a metal surface according to the present application; Figure 2 A schematic diagram of a turntable in an electroplating device for an anti-corrosion coating on a metal surface according to the present application; Figure 3 This is a bottom view of a turntable in an electroplating device for an anti-corrosion coating on a metal surface according to the present application; Figure 4 This is a schematic diagram of the internal structure of a support in an electroplating device for anti-corrosion coating on a metal surface according to the present application; Figure 5 A top view of a water tank in an electroplating device for an anti-corrosion coating on a metal surface according to the present application; Figure 6 This is a schematic structural diagram of a base in an electroplating device for anti-corrosion coating on a metal surface according to the present application; Figure 7 A top view of a base in an electroplating device for anti-corrosion coating of a metal surface according to the present application; Figure 8This is a schematic structural diagram of a support column in an electroplating device for an anti-corrosion coating on a metal surface according to the present application.
[0019] Among them, 1. turntable; 2. teeth; 3. rust removal tank; 4. drain pipe; 5. water tank; 6. water pipe; 7. reciprocating screw; 8. base; 9. guide rail; 10. support; 11. fixed column; 12. pedestal; 13. storage box; 14. rotating plate; 15. first connecting rod; 16. first round rod; 17. limit rod; 18. scraper; 19. pulley; 20. second connecting rod; 21. second round rod; 22. gear; 23. mechanical arm; 24. drying tank; 25. decontamination tank; 26. pillar; 27. motor; 28. electroplating tank; 29. passivation tank; 30. disc; 31. conveying block; 32. chain; 33. conveyor belt; 34. rotating column; 35. nozzle. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0021] Example: As one aspect of this application, please see the attached Figure 1 , Attachment Figure 6 and attached Figure 7 The embodiment of the present application provides an electroplating device for anti-corrosion coating on a metal surface, comprising a pedestal 12, a storage box 13 is arranged on the top side of the pedestal 12, and the metal plates to be electroplated are stored in the storage box 13, and a fixed column 11 is arranged on the left side of the pedestal 12; a base 8, the top side of the base 8 is rotatably connected to two discs 30, the top side of the outer wall of the base 8 is fixedly connected to a guide rail 9, the two discs 30 are connected by a chain 32, the outer wall of the chain 32 is fixedly connected to a conveyor belt 33, and the outer wall of the conveyor belt 33 is fixedly connected to a plurality of conveying blocks 31 for conveying metal plates, the conveyor belt 33 is driven to rotate by the chain 32, and the conveyor belt 33 drives the conveying blocks 31 to move on the guide rail 9, thereby completing the feeding process, and the conveying blocks 31 are located on the top side of the guide rail 9; a water tank 5, the inner middle end of the water tank 5 is fixedly connected to a pillar 26, and the top end of the pillar 26 is rotatably connected to a turntable 1, please refer to the attached Figure 2 , Attachment Figure 3 and attached Figure 5A drying tank 24 for drying the metal plate is fixedly connected to the middle end of the outer wall of the support 26. The drying tank 24 is used to dry the metal plate after washing. A decontamination tank 25 for removing oil from the surface of the metal plate and a passivation tank 29 for passivating the metal plate are arranged on the right side of the water tank 5. A rust removal tank 3 for rust removal of the metal plate and an electroplating tank 28 for electroplating the metal plate are arranged on the left side of the water tank 5. The decontamination tank 25 is filled with sodium hydroxide solution to saponify the oil on the surface of the metal plate to remove oil. The rust removal tank 3 is filled with hydrochloric acid solution to remove rust and other impurities such as oxides on the surface of the metal plate. The electroplating tank 28 is filled with electroplating solution to electroplate the metal plate. The passivation tank 29 is filled with passivation solution to form a passivation film on the coating surface of the electroplated metal plate to further improve the corrosion resistance of the coating. The decontamination tank 25 and the rust removal tank 3. The electroplating tank 28 and the passivation tank 29 are arranged clockwise. Since the decontamination tank 25, the rust removal tank 3, the electroplating tank 28 and the passivation tank 29 are arranged clockwise, the metal plate can be decontaminated, rusted, electroplated and passivated in sequence in a clockwise direction, making the process of the device more concise and convenient. A nozzle 35 is fixedly connected to the top side of the inner wall of the water tank 5, and a water pipe 6 is fixedly connected to the top side of the nozzle 35. The water pipe 6 is connected to an external water supply device. Clean water is transported to the nozzle 35 through the water supply device and the water pipe 6, and then water is sprayed onto the surface of the metal plate through the nozzle 35, so that the liquid contaminated on the surface of the metal plate through various processes is cleaned to prevent the subsequent processes from being affected. A drain pipe 4 is fixedly connected to the bottom side of the water tank 5, and the waste water generated by cleaning is discharged through the drain pipe 4. A mechanical arm 23 for clamping the metal plate is installed on the bottom side of the turntable 1 and the rotating plate 14.
[0022] Please see attached Figure 1 and attached Figure 8 The top of the fixed column 11 is rotatably connected to a rotating column 34, the outer wall of the rotating column 34 is fixedly connected to a rotating plate 14, the top side of the rotating column 34 is fixedly connected to a first connecting rod 15, the left bottom side of the first connecting rod 15 is fixedly connected to a first round rod 16, the bottom end of the first round rod 16 is fixedly connected to the top side of the left disk 30, the left disk 30 drives the first round rod 16 to rotate around the center of the left disk 30, and then drives the first connecting rod 15 to move, so that the first connecting rod 15 drives the rotating column 34 to rotate, so that the rotating plate 14 rotates with the mechanical arms 23 on the left and right sides, please refer to the attached Figure 1 , Attachment Figure 6 and attached Figure 7Two supports 10 are provided on the front side of the base 8. The left support 10 and the top side of the base 8 are rotatably connected with the reciprocating screw 7. The right support 10 and the top side of the base 8 are fixedly connected with the limit rod 17. One end of the scraper 18 is threadedly connected to the outer wall of the reciprocating screw 7, and the other end of the scraper 18 is slidably connected to the outer wall of the limit rod 17. The scraper 18 is driven up and down by the reciprocating screw 7, so that the scraper 18 removes burrs from the metal plate. The top of the reciprocating screw 7 is fixedly connected with a pulley 19, and the pulleys 19 are connected by belts. The two pulleys 19 connected by the belts make the reciprocating screw 7 on the front side rotate and drive the reciprocating screw 7 on the rear side to rotate. The top side of the outer wall of the front reciprocating screw 7 A gear 22 is fixedly connected, and a plurality of teeth 2 are fixedly connected to the outer wall of the turntable 1, and the teeth 2 and the gear 22 are meshed with each other. The meshing teeth 2 and the gear 22 make the reciprocating screw 7 on the front side rotate when the turntable 1 rotates, and a second connecting rod 20 is fixedly connected to the top side of the rear pulley 19, and a second round rod 21 is fixedly connected to the bottom side of the left end of the second connecting rod 20, and the bottom end of the second round rod 21 is fixedly connected to the top side of the left disk 30, and the second connecting rod 20 is rotated around the center of the rear pulley 19 through the rear pulley 19, so that the second round rod 21 drives the left disk 30 to rotate, thereby rotating the chain 32 and the conveyor belt 33, so that the conveying block 31 moves step by step on the guide rail 9.
[0023] Please see attached Figure 1 , Attachment Figure 3 and attached Figure 4 A motor 27 is installed on the inner top side of the support 26, and the driving end of the motor 27 is fixedly connected to the bottom side of the turntable 1. The turntable 1 is driven to rotate by the motor 27. Two clamping plates for clamping the metal plate are fixedly connected to the top side of the conveying block 31, and the drying tank 24 is provided with a through groove for the metal plate to enter the drying tank 24.
[0024] As another aspect of the present application, the present application provides an electroplating process for an anti-corrosion coating on a metal surface, comprising the following steps: Step 1, first, the robot arm 23 located on the turntable 1 and on the upper left side of the guide rail 9 will clamp the metal plate on the conveying block 31 located on the left side of the guide rail 9 and below the robot arm 23, and at the same time, the robot arms 23 located in the decontamination tank 25, the rust removal tank 3, the electroplating tank 28, the passivation tank 29 and the water tank 5 will lift and pull the metal plate out, and then the motor 27 drives the turntable 1 to rotate, so that the robot arm 23 rotates to the decontamination tank 25, and then each robot arm 23 will put the metal plate into the decontamination tank 25, the rust removal tank 3, the electroplating tank 28, the passivation tank 29 and the water tank 5 below each position, and perform decontamination, rust removal, The metal plate is electroplated, passivated and cleaned, and the metal plate pulled out from the passivation tank 29 in the last step will be taken down by the staff for subsequent processing, wherein the cleaning process needs to be performed after the three processes of decontamination, rust removal and electroplating. When the metal plate is pulled out and the turntable 1 drives the mechanical arm 23 to rotate, the mechanical arm 23 will be tilted at a certain angle, so that the metal plate enters the drying tank 24 through the through slot when rotating, and then the metal plate is dried on both sides by the drying tank 24, so as to prevent the water after cleaning from being retained on the surface of the metal plate and affecting the subsequent processing, thereby realizing the operation of multiple mechanical arms 23 on multiple metal plates in different processes; Step 2: Since the motor 27 in step 1 drives the turntable 1 to rotate, due to the teeth 2 on the turntable 1 meshing with the gear 22, the front reciprocating screw 7 is driven to rotate while the turntable 1 rotates. When the front reciprocating screw 7 rotates, the rear reciprocating screw 7 is driven to rotate through the pulley 19 and the belt, so that the two scrapers 18 move up and down, thereby performing a pre-treatment of scraping off burrs on the metal plate between the two scrapers 18; Step 3: Due to the rotation of the pulley 19 in step 2, the second connecting rod 20 will be driven to rotate around the center of the pulley 19, thereby driving the second round rod 21 to move, so that the left disc 30 is driven to rotate through the movement of the second round rod 21, and then the chain 32 and the conveyor belt 33 are driven to rotate, so that the conveying block 31 is gradually moved on the guide rail 9, so that the conveying block 31 passes between the two scrapers 18 and the mechanical arm 23 on the upper left side of the guide rail 9 in turn, and the conveying block 31 that has been clamped by the metal plate returns to the right side of the guide rail 9, so that the conveying block 31 completes a whole feeding process for the metal plate; Step 4. Since the disk 30 on the left side drives the chain 32 to rotate in step 3, the disk 30 on the right side will rotate. When the disk 30 on the right side rotates, it will drive the first round rod 16 to rotate around the center of the disk 30 on the right side, so that the first connecting rod 15 moves to drive the rotating column 34 to rotate, so that the rotating plate 14 rotates, so that the mechanical arm 23 on the left side of the rotating plate 14 with the metal plate placed thereon rotates to the right, and the mechanical arm 23 on the right side that has clamped the metal plate rotates to the left, so that the two mechanical arms 23 respectively perform the process of taking and loading materials.
[0025] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. An electroplating device for anti-corrosion coating on metal surface, characterized in that: include: A pedestal (12), wherein a storage box (13) is arranged on the top side of the pedestal (12), a fixing column (11) is arranged on the left side of the pedestal (12), and a loading assembly for loading metal plates is arranged on the top side of the fixing column (11); A base (8), wherein two discs (30) are rotatably connected to the top side of the base (8), a guide rail (9) is fixedly connected to the top side of the outer wall of the base (8), the two discs (30) are connected via a chain (32), a conveyor belt (33) is fixedly connected to the outer wall of the chain (32), a plurality of conveyor blocks (31) for conveying metal plates are fixedly connected to the outer wall of the conveyor belt (33), the conveyor blocks (31) are located on the top side of the guide rail (9), and a pretreatment component for deburring the metal plates is arranged on the top side of the base (8); A water tank (5), wherein a support (26) is fixedly connected to the middle end of the interior of the water tank (5), a turntable (1) is rotatably connected to the top end of the support (26), a drying pool (24) for drying metal plates is fixedly connected to the middle end of the outer wall of the support (26), a processing assembly for sequentially processing the metal plates is provided on the outer wall of the water tank (5), and a cleaning assembly for cleaning the metal plates is fixedly connected to the interior of the water tank (5).
2. The electroplating device for metal surface anti-corrosion coating according to claim 1, characterized in that: The loading assembly comprises a rotating column (34) rotatably connected to the top of the fixed column (11); the outer wall of the rotating column (34) is fixedly connected to a rotating plate (14); the top side of the rotating column (34) is fixedly connected to a first connecting rod (15); the bottom side of the left end of the first connecting rod (15) is fixedly connected to a first round rod (16); the bottom end of the first round rod (16) is fixedly connected to the top side of the left disc (30).
3. The electroplating device for metal surface anti-corrosion coating according to claim 1, characterized in that: The pretreatment component comprises two supports (10) arranged on the front side of the base (8); the left support (10) and the top side of the base (8) are both rotatably connected to a reciprocating screw (7); the right support (10) and the top side of the base (8) are both fixedly connected to a limiting rod (17); the limiting rod (17) and the reciprocating screw (7) are connected via a scraper (18); and the reciprocating screw (7) and the left disc (30) are connected via a transmission component.
4. The electroplating device for metal surface anti-corrosion coating according to claim 3, characterized in that: The transmission assembly comprises a pulley (19) fixedly connected to the top end of the reciprocating screw (7), and the pulleys (19) are connected via a belt; a gear (22) is fixedly connected to the top side of the outer wall of the front reciprocating screw (7); a plurality of teeth (2) are fixedly connected to the outer wall of the rotating disk (1); the teeth (2) and the gear (22) are meshed with each other; a second connecting rod (20) is fixedly connected to the top side of the rear pulley (19); a second round rod (21) is fixedly connected to the bottom side of the left end of the second connecting rod (20); and the bottom end of the second round rod (21) is fixedly connected to the top side of the left disk (30).
5. The electroplating device for metal surface anti-corrosion coating according to claim 1, characterized in that: The processing assembly comprises a decontamination tank (25) for removing oil from the surface of the metal plate and a passivation tank (29) for passivating the metal plate, which are arranged on the right side of the water tank (5); a rust removal tank (3) for removing rust from the metal plate and an electroplating tank (28) for electroplating the metal plate are arranged on the left side of the water tank (5); the decontamination tank (25), the rust removal tank (3), the electroplating tank (28) and the passivation tank (29) are arranged in a clockwise direction.
6. The electroplating device for metal surface anti-corrosion coating according to claim 1, characterized in that: The cleaning assembly comprises a nozzle (35) fixedly connected to the top side of the inner wall of the water tank (5); a water pipe (6) is fixedly connected to the top side of the nozzle (35); the water pipe (6) is externally connected to water supply equipment; and a drainage pipe (4) is fixedly connected to the bottom side of the water tank (5).
7. The electroplating device for metal surface anti-corrosion coating according to claim 2, characterized in that: Mechanical arms (23) for clamping metal plates are installed on the bottom sides of the turntable (1) and the rotating plate (14).
8. The electroplating device for metal surface anti-corrosion coating according to claim 1, characterized in that: A motor (27) is installed on the inner top side of the support (26), and a driving end of the motor (27) is fixedly connected to the bottom side of the turntable (1).
9. The electroplating device for metal surface anti-corrosion coating according to claim 1, characterized in that: Two clamping plates for clamping the metal plate are fixedly connected to the top side of the conveying block (31), and the drying tank (24) is provided with a through slot for allowing the metal plate to enter the drying tank (24).
10. An electroplating process for an anti-corrosion coating on a metal surface, used for an electroplating device for an anti-corrosion coating on a metal surface as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: First, the mechanical arm (23) located on the turntable (1) and above the left side of the guide rail (9) will clamp the metal plate on the conveying block (31) located on the left side of the guide rail (9) and below the mechanical arm (23). At the same time, the mechanical arms (23) located in the decontamination tank (25), the rust removal tank (3), the electroplating tank (28), the passivation tank (29) and the water tank (5) will lift and pull the metal plate out of them. Then, the motor (27) drives the turntable (1) to rotate, so that the mechanical arm (23) rotates to the decontamination tank (25). Then, each mechanical arm (23) will put the metal plate into the decontamination tank (25), the rust removal tank (3), the electroplating tank (28), the passivation tank (29) and the water tank at the bottom of each position. (5), decontamination, rust removal, electroplating, passivation and cleaning are performed respectively, and the metal plate pulled out from the passivation tank (29) in the last step will be taken down by the staff for subsequent processing, wherein the cleaning process needs to be performed after the three processes of decontamination, rust removal and electroplating. When the metal plate is pulled out and the turntable (1) drives the mechanical arm (23) to rotate, the mechanical arm (23) will be tilted at a certain angle, so that the metal plate enters the drying tank (24) through the through slot during rotation, and then the metal plate is dried on both sides by the drying tank (24), so as to prevent the water after cleaning from being retained on the surface of the metal plate and affecting the subsequent processing, thereby realizing that multiple mechanical arms (23) can perform different processes on multiple metal plates; Step 2: Since the motor (27) in step 1 drives the turntable (1) to rotate, due to the teeth (2) on the turntable (1) meshing with the gear (22), the front reciprocating screw (7) is driven to rotate while the turntable (1) rotates. When the front reciprocating screw (7) rotates, the rear reciprocating screw (7) is driven to rotate through the pulley (19) and the belt, thereby causing the two scrapers (18) to move up and down, thereby performing a pre-treatment of scraping off burrs on the metal plate between the two scrapers (18); Step 3: Due to the rotation of the pulley (19) in step 2, the second connecting rod (20) will be driven to rotate around the center of the pulley (19), thereby driving the second round rod (21) to move, so that the left disc (30) is driven to rotate through the movement of the second round rod (21), and then the chain (32) and the conveyor belt (33) are driven to rotate, so that the conveying block (31) moves gradually on the guide rail (9), so that the conveying block (31) passes between the two scrapers (18) and the mechanical arm (23) on the upper left side of the guide rail (9) in sequence, and the conveying block (31) that has been clamped by the metal plate returns to the right side of the guide rail (9), so that the conveying block (31) completes a whole feeding process for the metal plate; Step 4: Since the left disk (30) in step 3 drives the chain (32) to rotate, the right disk (30) will rotate. When the right disk (30) rotates, it will drive the first round rod (16) to rotate around the center of the right disk (30), so that the first connecting rod (15) moves to drive the rotating column (34) to rotate, so that the rotating plate (14) rotates, so that the mechanical arm (23) on the left side of the rotating plate (14) with the metal plate placed thereon rotates to the right, and the mechanical arm (23) on the right side that has clamped the metal plate rotates to the left, so that the two mechanical arms (23) respectively perform the process of taking and loading materials.