Surface polishing apparatus for copper plated steel strip
By introducing a combination of scraper and brush plate structure into the copper-plated steel strip surface polishing equipment, the problem of debris accumulation in the production of copper-plated steel strip has been solved, achieving efficient cleaning and improving product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU HUASHENG-PONTE COPPER PLATING STEEL-STRIP CO LTD
- Filing Date
- 2025-08-14
- Publication Date
- 2026-08-04
AI Technical Summary
During the production of copper-plated steel strip, copper and steel debris generated during double-sided synchronous polishing accumulates on the top of the steel strip due to gravity, affecting subsequent electroplating processes and causing "mottling" or "over-etching" on the copper layer surface, thus affecting production quality.
A copper-plated steel strip surface polishing device was designed, which adopts a combination structure of scraper and brush. The scraper is driven by a reciprocating screw to move inside the device to scrape off large pieces of debris, while the brush achieves flexible cleaning through the cooperation of guide shaft and spring. Combined with the guide of the discharge plate, it ensures effective removal of debris.
This effectively prevents the accumulation of debris on the steel strip surface, improves the production quality of copper-plated steel strips, ensures a smooth copper layer surface, and enhances the conductivity and appearance quality of the product.
Smart Images
Figure CN224587740U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of polishing equipment technology, specifically to a polishing equipment for copper-plated steel strip surfaces. Background Technology
[0002] Copper-plated steel strip is a composite material with a steel strip as the base and a copper layer deposited on the surface through electroplating or chemical plating processes. It combines the mechanical strength of steel with the conductivity and corrosion resistance of copper, and is widely used in current collectors for new energy batteries, shielding layers for power cables, high-frequency electronic components and electromagnetic compatibility (EMC) fields.
[0003] A search revealed a patent, CN221364310U, for a steel strip polishing dust removal device. This device includes a recovery cavity and two through grooves located on either side of the recovery cavity. A multi-angle grinding roller I and a multi-angle grinding roller II are fixedly connected to the upper part of the recovery cavity. Bearing seats are fixedly connected to both ends of the recovery cavity, and contact rollers are rotatably connected to each bearing seat. Extrusion slide plates are slidably connected to both ends of the recovery cavity, and transverse screws are rotatably connected to both ends of the recovery cavity. The two transverse screws are respectively connected to the two extrusion slide plates via threaded transmission. A shielding cover is slidably connected to the recovery cavity. Its beneficial effect is to recover and process the debris and dust generated during the polishing of the steel strip, preventing dust from floating into the air and affecting air quality.
[0004] In the production and processing of copper-plated steel strip, surface polishing is a key process to ensure the product's conductivity and appearance quality. Currently, mainstream polishing equipment uses polishing rollers arranged symmetrically to simultaneously polish the steel strip on both sides. During this simultaneous polishing process, the simultaneous action of the upper and lower polishing rollers generates a large amount of mixed copper and steel debris. Due to gravity, this debris naturally accumulates on the top surface of the horizontally running steel strip. In the subsequent electroplating process, it dissolves in the electrolyte, resulting in "mottling" or "over-etching" on the copper layer surface, thus affecting the production quality of the copper-plated steel strip. Utility Model Content
[0005] The purpose of this invention is to provide a surface polishing device for copper-plated steel strips to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a copper-plated steel strip surface polishing device, including a device housing, a top cover installed on the top of the device housing, contact rollers provided on both sides of the device housing, a feed inlet opened on both sides of the device housing, and two polishing rollers rotatably installed inside the device housing;
[0007] The device housing has two scrapers slidably installed inside. Each scraper has a reciprocating screw threadedly connected to one end. The two reciprocating screws are connected by a pulley system. One end of one of the reciprocating screws is equipped with a motor.
[0008] As a further preferred embodiment of this technical solution, a brush plate is provided at the bottom of the scraper, and a slider is fixedly connected to the top of the brush plate. The slider is embedded inside the scraper, and a limit rod is slidably connected to the inner wall of the slider. The limit rod is fixedly installed on the inner wall of the scraper.
[0009] As a further preferred embodiment of this technical solution, a spring is provided on one side of the slider, a guide shaft is fixedly connected to one end of the brush plate, a guide plate is slidably connected to one end of the guide shaft, and the guide plate is fixedly installed on the inner wall of the equipment housing.
[0010] As a further preferred embodiment of this technical solution, a discharge plate is provided at the end of the scraper away from the reciprocating lead screw.
[0011] As a further preferred embodiment of this technical solution, a rotating shaft is fixedly installed on the inner wall of the discharge plate, the rotating shaft is rotatably installed inside the scraper, and a deflector plate is provided on both sides of the discharge plate, the deflector plate being fixedly installed on the inner wall of the equipment housing.
[0012] As a further preferred embodiment of this technical solution, a limiting plate is fixedly connected to the outer wall of the rotating shaft, and the limiting plate is slidably installed on the inner wall of the limiting groove, which is located inside the scraper.
[0013] As a further preferred embodiment of this technical solution, magnetic blocks are fixedly connected to both sides of the limiting groove, and the magnetic blocks are magnetically connected to the limiting plate.
[0014] This utility model provides a surface polishing device for copper-plated steel strips, which has the following beneficial effects:
[0015] This invention utilizes a scraper that reciprocates within the equipment housing. During operation, a motor drives one reciprocating lead screw to rotate. This rotation, via a pulley system, drives the other reciprocating lead screw to rotate synchronously. The rotation of the lead screws causes the scraper to reciprocate within the equipment housing, scraping off debris from the surface of the copper-plated steel strip. This avoids the problem of large amounts of mixed copper and steel debris being generated when the upper and lower polishing rollers work simultaneously. Due to gravity, these debris would naturally accumulate on the top surface of the horizontally running steel strip, dissolving in the electrolyte during subsequent electroplating processes, leading to "mottling" or "over-etching" on the copper layer surface, thus affecting the production quality of the copper-plated steel strip. Scraping off the debris accumulated on the surface of the copper-plated steel strip helps improve the production quality of the copper-plated steel strip.
[0016] This invention utilizes a brush plate that moves laterally and reciprocates as the scraper moves. During operation, the movement of the scraper drives the movement of the brush plate, which in turn drives the guide shaft to slide on one side of the guide plate. The brush plate moves laterally due to the concave and convex guidance of the guide plate, and the elasticity of the spring causes the brush plate to reciprocate, further improving the cleaning effect on the surface debris of copper-plated steel strips. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model;
[0019] Figure 3 For the present utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle;
[0020] Figure 4 For the present utility model Figure 2 Enlarged schematic diagram of the structure at point B.
[0021] In the diagram: 1. Equipment casing; 2. Top cover; 3. Contact roller; 4. Feed inlet; 5. Polishing roller; 6. Scraper; 7. Reciprocating screw; 8. Pulley assembly; 9. Motor; 10. Brush plate; 11. Guide shaft; 12. Guide plate; 13. Slider; 14. Limiting rod; 15. Spring; 16. Discharge plate; 17. Rotating shaft; 18. Limiting plate; 19. Limiting groove; 20. Magnetic block; 21. Turning plate. Detailed Implementation
[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0023] This utility model provides a technical solution: such as Figures 1 to 4 As shown, in this embodiment, the copper-plated steel strip surface polishing equipment includes an equipment shell 1, a top cover 2 installed on the top of the equipment shell 1, contact rollers 3 on both sides of the equipment shell 1, a feed inlet 4 on both sides of the equipment shell 1, and two polishing rollers 5 rotatably installed inside the equipment shell 1.
[0024] Scraper 6 is slidably installed inside the equipment housing 1. There are two scraper 6 symmetrically arranged. One end of each scraper 6 is threaded with a reciprocating screw 7. The two reciprocating screws 7 are connected by a belt pulley group 8. One end of one of the reciprocating screws 7 is equipped with a motor 9.
[0025] The existing patent CN221364310U discloses a steel strip polishing dust removal device. This patent discloses the equipment housing 1, top cover 2, contact roller 3, feed inlet 4 and polishing roller 5 proposed in this application. The technical means will not be described in detail here.
[0026] Scraper 6 is a flexible scraper (such as polyurethane, silicone or Teflon material), which absorbs contact pressure through elastic deformation to achieve "soft contact" and avoid damage to hard materials;
[0027] With the scraper 6 reciprocating within the equipment housing 1, during operation, the starting motor 9 drives one of the reciprocating lead screws 7 to rotate. As the reciprocating lead screw 7 rotates, it drives the other reciprocating lead screw 7 to rotate synchronously via the pulley group 8. The rotation of the reciprocating lead screw 7 causes the scraper 6 to reciprocate within the equipment housing 1, scraping off the debris from the surface of the copper-plated steel strip. This avoids the problem of a large amount of mixed copper and steel debris being generated when the upper and lower polishing rollers 5 work simultaneously. Due to gravity, these debris would naturally accumulate on the top surface of the horizontally running steel strip. In subsequent electroplating processes, these debris would dissolve in the electrolyte, causing "mottling" or "over-etching" on the copper layer surface, thus affecting the production quality of the copper-plated steel strip. Scraping off the debris accumulated on the surface of the copper-plated steel strip helps improve the production quality of the copper-plated steel strip.
[0028] like Figures 1 to 3 As shown, a brush plate 10 is provided at the bottom of the scraper 6, and a slider 13 is fixedly connected to the top of the brush plate 10. The slider 13 is embedded inside the scraper 6, and a limit rod 14 is slidably connected to the inner wall of the slider 13. The limit rod 14 is fixedly installed on the inner wall of the scraper 6.
[0029] The brush plate 10 is located on the side away from the scraper 6 and away from the polishing roller 5;
[0030] During operation, the scraper 6 first contacts the surface of the copper-plated steel strip to scrape off large pieces of debris, and then the brush bristles at the bottom of the brush plate 10 contact the surface of the copper-plated steel strip to penetrate into the micropores of the steel strip surface and remove residual tiny particles, achieving graded cleaning of "coarse first and fine later". The combination of rigid scraping and flexible sweeping improves the debris removal rate.
[0031] like Figure 3 As shown, a spring 15 is provided on one side of the slider 13, a guide shaft 11 is fixedly connected to one end of the brush plate 10, a guide plate 12 is slidably connected to one end of the guide shaft 11, and the guide plate 12 is fixedly installed on the inner wall of the equipment housing 1.
[0032] As the scraper 6 moves, the brush plate 10 moves laterally back and forth. During operation, the movement of the scraper 6 drives the movement of the brush plate 10. When the brush plate 10 moves, it drives the guide shaft 11 to slide on one side of the guide plate 12. The brush plate 10 moves laterally due to the concave and convex guidance of the guide plate 12, and the elasticity of the spring 15 causes the brush plate 10 to move back and forth, further improving the cleaning effect on the surface debris of the copper-plated steel strip.
[0033] like Figure 2 and Figure 4 As shown, a discharge plate 16 is provided at the end of the scraper 6 away from the reciprocating screw 7.
[0034] The discharge plate 16 is tilted to one side of the direction of travel, so that the frictional force is decomposed into a component force along the direction of travel, which pushes the debris to move.
[0035] like Figure 4 As shown, a rotating shaft 17 is fixedly installed on the inner wall of the discharge plate 16. The rotating shaft 17 is rotatably installed inside the scraper 6. A turning plate 21 is provided on both sides of the discharge plate 16. The turning plate 21 is fixedly installed on the inner wall of the equipment housing 1.
[0036] When the discharge plate 16 moves to both sides of the inner wall of the equipment housing 1, the discharge plate 16 contacts the steering plate 21 and rotates under the guidance of the steering plate 21, so that the discharge plate 16 is always tilted towards the direction of travel.
[0037] like Figure 4 As shown, a limiting plate 18 is fixedly connected to the outer wall of the rotating shaft 17, and the limiting plate 18 is slidably installed on the inner wall of the limiting groove 19, which is opened inside the scraper 6.
[0038] The sliding range of the limiting plate 18 is limited by the limiting groove 19, thereby limiting the rotation angle of the discharge plate 16.
[0039] like Figure 4 As shown, magnetic blocks 20 are fixedly connected to both sides of the limiting groove 19, and the magnetic blocks 20 are magnetically connected to the limiting plate 18.
[0040] When the discharge plate 16 rotates, the limiting plate 18 rotates to one side of the inner wall of the limiting groove 19 and is magnetically connected to the limiting plate 18 through the magnetic block 20, ensuring that the discharge plate 16 remains tilted during movement and improving the stability during chip discharge.
[0041] This utility model provides a surface polishing device for copper-plated steel strips, the specific working principle of which is as follows:
[0042] During operation, the steel strip is first placed on top of the contact roller 3, so that it passes through the feed inlet 4 into the equipment housing 1 and passes between the two polishing rollers 5. The upper and lower surfaces of the steel strip are polished by the polishing rollers 5.
[0043] At the same time, the motor 9 is started to drive one of the reciprocating screws 7 to rotate. When the reciprocating screw 7 rotates, it drives the other reciprocating screw 7 to rotate synchronously through the belt pulley group 8. The rotation of the reciprocating screw 7 drives the scraper 6 to move back and forth inside the equipment shell 1 to scrape off the debris on the surface of the copper-plated steel strip.
[0044] At the same time, the movement of the scraper 6 drives the movement of the brush 10. When the brush 10 moves, it drives the guide shaft 11 to slide on one side of the guide plate 12. The brush 10 moves laterally due to the concave and convex guidance of the guide plate 12, and the brush 10 moves back and forth due to the elasticity of the spring 15, which further improves the cleaning effect on the surface debris of the copper-plated steel strip.
[0045] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A copper plated steel strip surface polishing apparatus comprising an apparatus housing (1) characterised in that: The top of the equipment housing (1) is equipped with a top cover (2), and both sides of the equipment housing (1) are provided with contact rollers (3). Both sides of the equipment housing (1) are provided with feed inlets (4). Two polishing rollers (5) are rotatably installed inside the equipment housing (1). The device housing (1) has a scraper (6) slidably installed inside. There are two scrapers (6) symmetrically arranged. One end of each scraper (6) is threaded with a reciprocating screw (7). The two reciprocating screws (7) are connected by a pulley group (8). One end of one of the reciprocating screws (7) is equipped with a motor (9).
2. The copper plated steel strip surface polishing apparatus according to claim 1, characterized in that: The bottom of the scraper (6) is provided with a brush plate (10), and the top of the brush plate (10) is fixedly connected with a slider (13). The slider (13) is embedded in the inside of the scraper (6), and the inner wall of the slider (13) is slidably connected with a limit rod (14). The limit rod (14) is fixedly installed on the inner wall of the scraper (6).
3. The copper plated steel strip surface polishing apparatus according to claim 2, characterized in that: A spring (15) is provided on one side of the slider (13), a guide shaft (11) is fixedly connected to one end of the brush plate (10), a guide plate (12) is slidably connected to one end of the guide shaft (11), and the guide plate (12) is fixedly installed on the inner wall of the equipment housing (1).
4. The copper plated steel strip surface polishing apparatus of claim 1, wherein: The scraper (6) is provided with a discharge plate (16) at the end away from the reciprocating screw (7).
5. The copper plated steel strip surface polishing apparatus according to claim 4, wherein: A rotating shaft (17) is fixedly installed on the inner wall of the discharge plate (16). The rotating shaft (17) is rotatably installed inside the scraper (6). A turning plate (21) is provided on both sides of the discharge plate (16). The turning plate (21) is fixedly installed on the inner wall of the equipment shell (1).
6. The copper plated steel strip surface polishing apparatus according to claim 5, wherein: The outer wall of the rotating shaft (17) is fixedly connected to a limiting plate (18), which is slidably installed on the inner wall of the limiting groove (19), which is located inside the scraper (6).
7. The copper plated steel strip surface polishing apparatus according to claim 6, wherein: Both sides of the limiting groove (19) are fixedly connected to magnetic blocks (20), and the magnetic blocks (20) are magnetically connected to the limiting plate (18).