Scrubbing device for stainless steel passivation
By setting up fixed components and wiping components, combined with automated parts, the problem that the wiping device for stainless steel passivation cannot fully cover the surface of the workpiece is solved, realizing comprehensive wiping of the workpiece and efficient automated operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2026-03-20
AI Technical Summary
Existing stainless steel passivation cleaning devices cannot fully cover the workpiece surface, leaving cleaning dead zones that affect the passivation effect.
By employing fixed and wiping components, combined with an electric telescopic rod, servo motor, and drive motor, the system enables automatic clamping, movement, and wiping of workpieces, ensuring comprehensive cleaning of the workpiece's outer circumference and avoiding blind spots.
It achieves comprehensive cleaning of the workpiece surface, improves the cleaning effect, reduces manual operation, increases work efficiency, and has a compact structure and complete functions.
Smart Images

Figure CN224010573U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stainless steel passivation technology, and in particular to a cleaning device for stainless steel passivation. Background Technology
[0002] Stainless steel is widely used in chemical, food processing, medical device, and building decoration industries due to its excellent corrosion resistance, high strength, and good aesthetics. However, during processing, stainless steel is prone to forming an oxide layer or other contaminants on its surface, affecting its corrosion resistance and appearance. To improve the corrosion resistance of stainless steel, passivation treatment is usually required. Passivation treatment forms a dense oxide film on the surface of stainless steel through chemical or electrochemical methods to enhance its corrosion resistance. Surface cleaning is a crucial step in the stainless steel passivation process. If oil, rust, or other impurities are present on the surface, it will affect the formation of the passivation film and reduce the passivation effect. Therefore, the workpiece surface must be thoroughly cleaned and wiped before stainless steel passivation.
[0003] A search revealed Chinese patent application number 202420668235.7, which discloses a cleaning device for stainless steel passivation. The device includes a workbench, a movable plate slidably connected to the right side of the top surface of the workbench, a fixed plate welded to the left side of the top surface of the workbench, and placement plates welded to the sides of both the fixed plate and the movable plate that are close to each other. A movable seat is slidably connected to the top surface of the workbench, and a hollow ring is fixedly installed on the right side of the top surface of the movable seat. Multiple sets of water spray heads are evenly installed on the right side of the hollow ring, and a scraper is installed on the inner wall of the hollow ring. An installation ring is fixedly installed on the left side of the top surface of the movable seat, and a wiping sponge is installed on the inner wall of the installation ring.
[0004] The stainless steel passivation cleaning device in the above patent has the following shortcomings: the device can only clean a fixed position of the workpiece and cannot fully cover the entire surface of the workpiece. The two ends of the workpiece and the contact positions with the placement plate and the moving plate are easy to become cleaning dead corners, and the cleaning effect cannot be guaranteed. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a cleaning device for stainless steel passivation.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A stainless steel passivation cleaning device includes a collection box. Two sets of fixing components for limiting workpiece positioning are installed on the top outer wall of the collection box. A wiping component for cleaning the workpiece is also installed on the top of the collection box. The fixing components include an electric telescopic rod and vertical plates. The vertical plates are fixed to the top outer wall of the collection box, and the two vertical plates are fixed together by guide rods. The electric telescopic rod is fixed to one side of the outer wall of the vertical plate, and a support plate is fixed to the output end of the electric telescopic rod by a pin. A side plate is welded to one side of the outer wall of the support plate, and a limiting rod is fixed to one side of the outer wall of multiple side plates. A sliding block is movably connected to the outer wall of the limiting rod, and a clamping head is welded to one side of the outer wall of the sliding block. Multiple sliding blocks are driven by a driving mechanism.
[0008] As a further embodiment of this utility model: the driving mechanism includes a movable frame and a guide post. The guide post is fixed to the outer wall of one side of the support plate, and the movable frame is movably connected to the outer wall of the guide post. A bracket is welded to the outer wall of one side of the movable frame, and a bracket is welded to the outer wall of one side of the sliding block. A swing arm is movably connected between the bracket and the bracket.
[0009] As a further embodiment of this utility model: the driving mechanism further includes a servo motor and a threaded column. The servo motor is fixed to the outer wall of one side of the support plate, and the threaded column is connected to the output end of the servo motor through a coupling. The threaded column and the moving frame are threadedly connected.
[0010] As a further embodiment of this utility model: the wiping assembly includes a mounting plate and a toothed ring, the mounting plate is fixed to the outer wall of the top of the collection box, and the toothed ring is movably connected to the inner wall of the through hole opened on the surface of the mounting plate.
[0011] As a further embodiment of this utility model: T-shaped rods are movably connected to the through holes at both ends of the gear ring, and a fixing plate is welded to one end of the T-shaped rod, and sponge is adhered to the surface of the fixing plate. A spring is sleeved on the outer wall of the T-shaped rod, and the two ends of the spring are respectively fixed to the inner wall of one side of the T-shaped rod and the outer wall of the gear ring.
[0012] As a further improvement of this utility model: a support frame is fixed to the top outer wall of the collection box, and a drive motor is fixed to one side of the outer wall of the support frame, and a gear that meshes with a gear ring is fixed to the output end of the drive motor by a pin.
[0013] As a further embodiment of this utility model: an L-shaped plate is fixed to the top outer wall of the mounting plate, and a nozzle is fixed to the through hole at the top of the L-shaped plate by an embedding method, and a hose is connected to the top of the nozzle by a connector.
[0014] As a further improvement of this utility model, a drain valve is fixed to one side of the outer wall of the collection box.
[0015] As a further improvement of this utility model, a controller is installed on one side of the outer wall of the collection box.
[0016] Compared with the prior art, the present invention provides a cleaning device for stainless steel passivation, which has the following advantages:
[0017] 1. By setting two sets of fixed components and a movable wiping component, the workpiece can be fixed at both ends alternately during the wiping process, ensuring that every part of the outer circumference of the workpiece can be wiped, avoiding the problem of wiping dead corners that may exist in traditional wiping devices. At the same time, the sponge in the wiping component is kept in close contact with the workpiece by springs, further improving the wiping effect.
[0018] 2. The device uses automated components such as electric telescopic rods, servo motors, and drive motors, which can realize automatic clamping, movement, and cleaning of workpieces, reducing manual operation and improving work efficiency.
[0019] 3. The device integrates functions such as fixing, wiping, water spraying and waste liquid collection. It has a compact structure and complete functions. The nozzle is used in conjunction with the sponge. The design of the collection box and drain valve facilitates the centralized treatment of waste liquid and keeps the working environment clean.
[0020] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of a stainless steel passivation cleaning device proposed in this utility model;
[0022] Figure 2 This is a schematic diagram of the overall structure of the fixing component of a stainless steel passivation cleaning device proposed in this utility model;
[0023] Figure 3 This is a partial structural diagram of the fixing component of a stainless steel passivation cleaning device proposed in this utility model;
[0024] Figure 4 This is a schematic diagram of the overall structure of the scrubbing component of a scrubbing device for stainless steel passivation proposed in this utility model;
[0025] Figure 5 This is a side view structural diagram of the cleaning component of a stainless steel passivation cleaning device proposed in this utility model.
[0026] In the diagram: 1. Collection box; 2. Electric telescopic rod; 3. Drain valve; 4. Controller; 5. Support frame; 6. Guide rod; 7. Hose; 8. Mounting plate; 9. Support plate; 10. Vertical plate; 11. Servo motor; 12. Threaded column; 13. Bracket 1; 14. Moving frame; 15. Guide column; 16. Clamping head; 17. Side plate; 18. Sliding block; 19. Limiting rod; 20. Bracket 2; 21. Swing arm; 22. L-shaped plate; 23. Gear ring; 24. Gear; 25. Drive motor; 26. Sponge; 27. Fixing plate; 28. T-shaped rod; 29. Spring; 30. Nozzle; 31. Workpiece. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0028] A scrubbing device for stainless steel passivation, such as Figures 1 to 5 As shown, the system includes a collection box 1. Two sets of fixing components for limiting the position of workpiece 31 are installed on the top outer wall of the collection box 1. A wiping component for cleaning the workpiece 31 is also installed on the top of the collection box 1. The fixing components include an electric telescopic rod 2 and a vertical plate 10. The vertical plate 10 is fixed to the top outer wall of the collection box 1 by bolts. The two vertical plates 10 are fixed together by a guide rod 6. The electric telescopic rod 2 is fixed to one side of the outer wall of the vertical plate 10 by bolts. A support plate 9 is fixed to the output end of the electric telescopic rod 2 by a pin. A side plate 17 is welded to one side of the outer wall of the support plate 9. Limiting rods 19 are fixed to one side of the outer wall of multiple side plates 17 by bolts. A sliding block 18 is slidably connected to the outer wall of the limiting rod 19. A clamping head 16 is welded to one side of the outer wall of the sliding block 18. Multiple sliding blocks 18 are driven by a driving mechanism.
[0029] Before cleaning, the workpiece 31 is placed in the gap between multiple clamping heads 16 of one set of fixing components. The multiple clamping heads 16 are driven to retract inward synchronously by the drive mechanism. When the clamping heads 16 move to fit against the outer circumference of the workpiece 31, the workpiece 31 is clamped and fixed by the clamping heads 16.
[0030] After the workpiece 31 is fixed, the support plate 9 is driven by the electric telescopic rod 2 to slide along the guide rod 6, thereby causing the workpiece 31 to move relative to the wiping assembly. During the movement of the workpiece 31, the wiping assembly wipes the outer circumference of the workpiece 31.
[0031] After one end of the workpiece 31 is cleaned, in order to avoid cleaning dead corners, when it is necessary to clean the position where the clamping head 16 and the workpiece 31 are in contact, another set of fixing components is used to fix one end of the workpiece 31 after it has been cleaned. The fixing component that originally fixed the workpiece 31 is detached from the workpiece 31 and moves away from the workpiece 31. After the other set of fixing components fixes the workpiece 31, it drives the workpiece 31 to move laterally in the same way, so that the wiping component can clean the other end of the workpiece 31 and ensure the cleaning effect.
[0032] The driving mechanism includes a movable frame 14 and a guide post 15. The guide post 15 is fixed to the outer wall of one side of the support plate 9 by bolts, and the movable frame 14 is slidably connected to the outer wall of the guide post 15. A bracket 13 is welded to the outer wall of one side of the movable frame 14, and a bracket 20 is welded to the outer wall of one side of the sliding block 18. A swing arm 21 is rotatably connected between the bracket 20 and the bracket 13. The driving mechanism also includes a servo motor 11 and a threaded column 12. The servo motor 11 is fixed to the outer wall of one side of the support plate 9 by bolts, and the threaded column 12 is connected to the output end of the servo motor 11 through a coupling. The threaded column 12 and the movable frame 14 are threadedly connected.
[0033] The servo motor 11 can drive the threaded column 12 to rotate. During the rotation of the threaded column 12, the moving frame 14 moves laterally under the guidance of the guide column 15. During the lateral movement of the moving frame 14, the swing arm 21 converts the lateral movement of the moving frame 14 into the movement of the sliding block 18 along the limit rod 19, thereby causing the clamping head 16 to retract inward to clamp and fix the workpiece 31.
[0034] The wiping assembly includes a mounting plate 8 and a toothed ring 23. The mounting plate 8 is fixed to the top outer wall of the collection box 1 by bolts, and the toothed ring 23 is rotatably connected to the inner wall of the through hole opened on the surface of the mounting plate 8. T-shaped rods 28 are slidably connected to the through holes opened at both ends of the toothed ring 23. A fixing plate 27 is welded to one end of the T-shaped rod 28, and a sponge 26 is adhered to the surface of the fixing plate 27. A spring 29 is sleeved on the outer wall of the T-shaped rod 28, and the two ends of the spring 29 are respectively fixed to the inner wall of one side of the T-shaped rod 28 and the outer circumference of the toothed ring 23.
[0035] The spring force of the spring 29 keeps the sponge 26 and the outer circumference of the workpiece 31 in contact. When the clamping head 16 on the fixing assembly clamps and fixes the workpiece 31, the electric telescopic rod 2 drives the workpiece 31 to move laterally, causing the workpiece 31 to slide along the surface of the sponge 26, so that the sponge 26 can wipe the workpiece 31.
[0036] The top outer wall of the collection box 1 is fixed with a support frame 5 by bolts, and a drive motor 25 is fixed with bolts on one side of the outer wall of the support frame 5. The output end of the drive motor 25 is fixed with a gear 24 that meshes with the gear ring 23 by a pin.
[0037] The drive motor 25 can drive the gear 24 to rotate. The gear 24 meshes with the gear ring 23, causing the gear ring 23 to rotate during the rotation of the gear 24. This allows the sponge 26 to wipe different positions of the workpiece 31 in the circumferential direction during the rotation, avoiding the appearance of wiping dead corners in the circumferential direction.
[0038] The top outer wall of the mounting plate 8 is fixed with an L-shaped plate 22 by bolts, and the nozzle 30 is fixed in the through hole at the top of the L-shaped plate 22 by embedding, and the nozzle 30 is connected to a hose 7 by a connector at the top.
[0039] In actual operation, the hose 7 is connected to the water pump. The water pump delivers water through the nozzle 30 and sprays it onto the outer circumference of the workpiece 31, so that the sponge 26 can work with the water to clean the workpiece 31.
[0040] A drain valve 3 is fixed to one side of the outer wall of the collection box 1 by bolts;
[0041] Collection box 1 collects the waste liquid after wiping, and the drain valve 3 can be opened to discharge the waste liquid.
[0042] A controller 4 is installed on one outer wall of the collection box 1;
[0043] The controller 4 can control the fixing component and the wiping component to wipe the workpiece 31.
[0044] Working principle: The workpiece 31 to be cleaned is placed in one of the fixed components. The servo motor 11 is started to drive the threaded column 12 to rotate. Since the threaded column 12 is threadedly connected to the moving frame 14, the moving frame 14 begins to move laterally under the guidance of the guide column 15. The lateral movement of the moving frame 14 is converted into the movement of the sliding block 18 along the limit rod 19 through the swing arm 21, so that the clamping head 16 synchronously retracts inward until it is tightly attached to the outer circumference of the workpiece 31, thereby achieving clamping and fixing of the workpiece. After the workpiece is fixed, the electric telescopic rod 2 is started to drive the support plate 9 and the workpiece 31 to slide along the guide rod 6. During the movement of the workpiece, the elastic force of the spring 29 keeps the sponge 26 in contact with the outer circumference of the workpiece 31, thereby achieving the cleaning of the workpiece. At the same time, the drive motor 25 is started to drive the gear 24 to rotate. Since the gear 24 meshes with the gear ring 23, the gear ring 23 rotates accordingly, driving the sponge 26 to rotate. While the sponge 26 rotates, it wipes the workpiece, avoiding dead corners in the circumferential direction. The hose 7 is connected to the water pump, which pumps water and sprays it onto the outer circumference of the workpiece 31 through the nozzle 30, so that the sponge 26 can wipe the workpiece with water. After one end of the workpiece is wiped, in order to wipe the clamping contact position between the clamping head 16 and the workpiece 31, the fixing component that originally fixed the workpiece is released, and another set of fixing components clamps and fixes the workpiece. Then, the workpiece is driven to move laterally in the same way, so that the wiping component wipes the other end of the workpiece. The waste liquid generated during the wiping process is collected in the collection tank 1. When it is necessary to discharge the waste liquid, the drain valve 3 is opened, and the waste liquid can be discharged from the collection tank. The entire wiping process can be controlled by the controller 4, including the clamping and releasing of the fixing components, the extension and retraction of the electric telescopic rod 2, the rotation of the drive motor 25, and the opening and closing of the water pump.
[0045] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A scrubbing device for stainless steel passivation, comprising a collection box (1), characterized in that, The top outer wall of the collection box (1) is equipped with two sets of fixing components for limiting the workpiece (31), and the top of the collection box (1) is also equipped with a wiping component for wiping the workpiece (31). The fixing components include an electric telescopic rod (2) and a vertical plate (10). The vertical plate (10) is fixed to the top outer wall of the collection box (1). The two vertical plates (10) are fixed together by a guide rod (6). The electric telescopic rod (2) is fixed to one side outer wall of the vertical plate (10). The output end of the electric telescopic rod (2) is fixed to a support plate (9) by a pin. A side plate (17) is welded to one side outer wall of the support plate (9). A limiting rod (19) is fixed to one side outer wall of multiple side plates (17). A sliding block (18) is movably connected to the outer wall of the limiting rod (19). A clamping head (16) is welded to one side outer wall of the sliding block (18). Multiple sliding blocks (18) are driven by a driving mechanism.
2. The stainless steel passivation cleaning device according to claim 1, characterized in that, The driving mechanism includes a movable frame (14) and a guide post (15). The guide post (15) is fixed to the outer wall of one side of the support plate (9), and the movable frame (14) is movably connected to the outer wall of the guide post (15). A bracket (13) is welded to the outer wall of one side of the movable frame (14), and a bracket (20) is welded to the outer wall of one side of the sliding block (18). A swing arm (21) is movably connected between the bracket (20) and the bracket (13).
3. The stainless steel passivation cleaning device according to claim 2, characterized in that, The drive mechanism also includes a servo motor (11) and a threaded column (12). The servo motor (11) is fixed to the outer wall of one side of the support plate (9), and the threaded column (12) is connected to the output end of the servo motor (11) through a coupling. The threaded column (12) and the moving frame (14) are threadedly connected.
4. The stainless steel passivation cleaning device according to claim 3, characterized in that, The wiping assembly includes a mounting plate (8) and a toothed ring (23). The mounting plate (8) is fixed to the top outer wall of the collection box (1), and the toothed ring (23) is movably connected to the inner wall of the through hole opened on the surface of the mounting plate (8).
5. A cleaning device for stainless steel passivation according to claim 4, characterized in that, The through holes at both ends of the gear ring (23) are movably connected to T-shaped rods (28), and a fixing plate (27) is welded to one end of the T-shaped rod (28). A sponge (26) is adhered to the surface of the fixing plate (27). A spring (29) is sleeved on the outer wall of the T-shaped rod (28), and the two ends of the spring (29) are respectively fixed to the inner wall of one side of the T-shaped rod (28) and the outer circumference of the gear ring (23).
6. A cleaning device for stainless steel passivation according to claim 5, characterized in that, The top outer wall of the collection box (1) is fixed with a support frame (5), and a drive motor (25) is fixed on one side of the outer wall of the support frame (5). The output end of the drive motor (25) is fixed with a gear (24) that meshes with the gear ring (23) through a pin.
7. A cleaning device for stainless steel passivation according to claim 6, characterized in that, An L-shaped plate (22) is fixed to the top outer wall of the mounting plate (8), and a nozzle (30) is fixed to the through hole at the top of the L-shaped plate (22) by an embedding method, and a hose (7) is connected to the top of the nozzle (30) by a connector.
8. A cleaning device for stainless steel passivation according to claim 7, characterized in that, A drain valve (3) is fixed to one side of the outer wall of the collection box (1).
9. A cleaning device for stainless steel passivation according to claim 8, characterized in that, A controller (4) is installed on one side of the outer wall of the collection box (1).
Citation Information
Patent Citations
Scrubbing device for stainless steel passivation
CN222036014U