A copper foil surface cleaning apparatus and method

Abstract

The present application relates to copper foil production technical field, especially in kind of copper foil surface cleaning equipment and method, including base, base is equipped with feeding roller, first horizontal feeding roller, pretreatment assembly, surface polishing assembly, water group component, second horizontal feeding roller, drying assembly and receiving roller in copper foil conveying direction in proper order, the present application can effectively clean the impurities on the surface of copper foil which does not participate in chemical reaction by chemical cleaning and polishing polishing cleaning of surface polishing assembly, greatly improves the quality of copper foil.

Description

Technical Field

[0001] This invention relates to the field of copper foil production technology, and in particular to a copper foil surface cleaning device and method. Background Technology

[0002] Copper foil is a cathodic electrolytic material, a thin, continuous metal foil deposited on the substrate layer of a circuit board. It can serve as a conductor in a PCB, easily adheres to an insulating layer, accepts printed protective layers, and forms circuit patterns after etching.

[0003] During the copper foil processing and production process, residual impurities may remain on the surface of the copper foil. Currently, copper foil cleaning equipment uses chemical cleaning and water rinsing to clean the surface of the copper foil. However, chemical treatment can only remove impurities that are soluble in chemical solvents, and cannot remove impurities on the surface of the copper foil that do not participate in the chemical reaction, resulting in a reduction in the quality of the copper foil. Therefore, there is an urgent need for a copper foil surface cleaning equipment and method to solve this problem. Summary of the Invention

[0004] The purpose of this invention is to provide a copper foil surface cleaning device and method to solve the above-mentioned problems.

[0005] To achieve the above objectives, the present invention provides the following solution:

[0006] A copper foil surface cleaning device includes a base. Along the copper foil conveying direction, the base is sequentially equipped with a feeding roller, a first horizontal feeding roller, a pretreatment component, a surface polishing component, a water rinsing component, a second horizontal feeding roller, a drying component, and a receiving roller. The surface polishing component includes a first housing. A tensioning component is disposed within the first housing. A polishing and blowing section is disposed directly above the tensioning component. The top of the polishing and blowing section is fixedly connected to the inner wall of the top of the first housing. The polishing and blowing section is connected to a blowing component. The bottom of the blowing component is fixedly connected to the top of the first housing. The first housing is connected to the blowing component.

[0007] Preferably, the pretreatment component includes a pretreatment tank, with second feeding rollers rotatably connected to the top of the left and right side walls of the pretreatment tank, and a third feeding roller rotatably connected to the bottom of the pretreatment tank. The third feeding roller is located between the two second feeding rollers. The pretreatment tank is filled with chemical washing solution, and the third feeding roller is immersed in the chemical washing solution.

[0008] Preferably, the tensioning assembly includes a support plate located directly below the polishing and blowing section. Support rollers are rotatably connected to both ends of the support plate, with the edges of the support rollers tangent to the top surface of the support plate. Slide rods are symmetrically fixed to the bottom of the support plate and are vertically slidably connected to the base. A spring is sleeved on the slide rod, with one end of the spring abutting against the bottom of the support plate and the other end abutting against the top of the base. A pressing assembly is provided on the outer side of the support plate.

[0009] Preferably, the clamping assembly includes a sliding plate slidably connected to the base, and clamping rollers symmetrically rotatably connected to both sides of the top of the sliding plate. The two clamping rollers are located on both sides of the support plate, and there is a gap between the clamping rollers and the support rollers. The two support rollers are located between the two clamping rollers. A vertically arranged rack is fixedly connected to the center of the bottom of the sliding plate. The rack is slidably connected to the base, and the rack meshes with a gear. The gear is rotatably connected to the bottom of the base.

[0010] Preferably, the polishing and blowing unit includes a platform, a polishing roller is rotatably connected to the bottom center of the platform, the polishing roller is located directly above the support plate, air knives are symmetrically arranged on both sides of the polishing roller, the middle of the air knife is rotatably connected to the platform, one end of the air knife away from the polishing roller is rotatably connected to one end of the second telescopic rod, the other end of the second telescopic rod is rotatably connected to the platform, the air knife is connected to the air outlet of the blowing assembly, one end of the first telescopic rod is fixedly connected to the top center of the platform, and the other end of the first telescopic rod is fixedly connected to the inner side of the top of the first housing.

[0011] Preferably, the blower assembly includes a powder collection chamber, the bottom of which is fixedly connected to the top of the first housing, both ends of which are respectively connected to the interior of the first housing, and both ends of which are detachably connected to a filter screen, the bottom of which is connected to the top of the first housing, and a rotating cover plate is provided directly above the filter screen, the rotating cover plate being rotatably connected to the top of the powder collection chamber.

[0012] A fan is fixedly connected to the middle of the powder collection chamber. The air inlets at both ends of the fan are connected to the two filters respectively. One end of a partition is symmetrically fixed to both sides of the air outlet of the fan. The other end of the partition is fixedly connected to the inner wall of the powder collection chamber. The air outlet of the fan, the two partitions and the inner wall of the powder collection chamber form a closed cavity that is connected to the middle of the two air knives through a ventilation pipe.

[0013] Preferably, the water flushing assembly includes a cleaning tank, a fourth feeding roller is rotatably connected to the feed end at the top of the cleaning tank, two symmetrically arranged fifth feeding rollers are rotatably connected to the bottom of the cleaning tank, a sixth feeding roller is rotatably connected to the discharge end at the top of the cleaning tank, a water pump is fixedly connected in the middle of the cleaning tank, the water pump is located between the fourth feeding roller and the two fifth feeding rollers, and the water outlet of the water pump is located on the side closer to the fourth feeding roller.

[0014] Preferably, the drying assembly includes a drying chamber, with two symmetrically arranged eighth feeding rollers rotatably connected to the bottom of the drying chamber, and two symmetrically arranged ninth feeding rollers rotatably connected to the middle of the inner side of the drying chamber. The two ninth feeding rollers are located between the two eighth feeding rollers. A cold air gun is provided on the top of the two ninth feeding rollers, and the cold air gun is rotatably connected to the inner wall of the top of the drying chamber. A heating wire is provided at the bottom of the two ninth feeding rollers, and the heating wire is fixedly connected to the inner wall of the drying chamber.

[0015] A method for cleaning copper foil surfaces, based on a copper foil surface cleaning device, includes the following steps:

[0016] S1. The produced copper foil is sequentially wound around the upper surface of the feed roller and the lower surface of the first horizontal feed roller, and enters the pretreatment assembly through the first horizontal feed roller to chemically clean the surface of the copper foil.

[0017] S2. The copper foil, after being chemically cleaned by the pretreatment component, enters the surface polishing component horizontally to polish the surface of the copper foil.

[0018] S3. The copper foil processed by the surface polishing assembly enters the water rinsing assembly for cleaning;

[0019] S4. The copper foil cleaned by the water rinsing component enters the drying component horizontally under the action of the second horizontal feed roller and is dried. The dried copper foil is then wound around the take-up roller.

[0020] The present invention has the following technical effects: In use, the produced copper foil is first wound sequentially around the upper surface of the feed roller and the lower surface of the first horizontal feed roller. The copper foil is then horizontally fed into the pretreatment component by the first horizontal feed roller. The pretreatment component performs chemical cleaning on the surface of the copper foil, performing preliminary cleaning. Subsequently, the copper foil after chemical cleaning enters the surface polishing component, where the surface of the copper foil is polished and ground, thereby effectively removing stubborn impurities from the surface of the copper foil and making the surface of the copper foil smoother. After being treated by the surface polishing component, the copper foil enters the water rinsing component for cleaning. Then, under the action of the second horizontal feed roller, the copper foil enters the drying component for drying. The dried copper foil is wound on the take-up roller. Through chemical cleaning and polishing and grinding by the surface polishing component, impurities on the surface of the copper foil that do not participate in the chemical reaction can be effectively cleaned, greatly improving the quality of the copper foil. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 For the present invention Figure 1 Enlarged view of a portion of point A in the middle;

[0024] Figure 3 For the present invention Figure 1 Enlarged view of a section at point B in the middle;

[0025] The components are as follows: 1. Base; 2. Pretreatment tank; 3. Rack; 4. Gear; 5. Sliding plate; 6. Pressing roller; 7. Slide rod; 8. Spring; 9. Support roller; 10. Support plate; 11. First box; 12. Powder collection bin; 13. Rotating cover; 14. Filter screen; 15. Anti-escape net; 16. Fan; 17. First telescopic rod; 18. Platform; 19. Polishing roller; 20. Air knife; 21. Second telescopic rod. 22. Washing tank; 23. Water pump; 24. Drying oven; 25. Heating wire; 26. Cold air gun; 27. Baffle; 28. Feed roller; 29. ​​First horizontal feed roller; 30. Second feed roller; 31. Third feed roller; 32. Fourth feed roller; 33. Fifth feed roller; 34. Sixth feed roller; 35. Second horizontal feed roller; 36. Eighth feed roller; 37. Ninth feed roller; 38. Take-up roller. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on 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.

[0027] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] refer to Figures 1 to 3 The present invention provides a copper foil surface cleaning device, including a base 1. The base 1 is provided with a feeding roller 28, a first horizontal feeding roller 29, a pretreatment component, a surface polishing component, a water rinsing component, a second horizontal feeding roller 35, a drying component, and a receiving roller 38 arranged sequentially along the copper foil conveying direction. The surface polishing component includes a first housing 11, a tensioning component is provided inside the first housing 11, a polishing and blowing section is provided directly above the tensioning component, the top of the polishing and blowing section is fixedly connected to the inner wall of the top of the first housing 11, the polishing and blowing section is connected to a blowing component, the bottom of the blowing component is fixedly connected to the top of the first housing 11, and the first housing 11 is connected to the blowing component.

[0029] In use, the produced copper foil is first wound sequentially around the upper surface of the feed roller 28 and the lower surface of the first horizontal feed roller 29. The copper foil is then horizontally fed into the pretreatment component by the first horizontal feed roller 29. The pretreatment component performs chemical cleaning on the surface of the copper foil for preliminary cleaning. After chemical cleaning, the copper foil horizontally enters the surface polishing component for polishing and grinding, which effectively removes stubborn impurities from the surface of the copper foil, making the surface of the copper foil smoother. After being treated by the surface polishing component, the copper foil enters the water rinsing component for cleaning. Then, under the action of the second horizontal feed roller 35, the copper foil horizontally enters the drying component for drying. The dried copper foil is wound around the take-up roller 38. Through chemical cleaning and polishing and grinding by the surface polishing component, impurities on the surface of the copper foil that do not participate in the chemical reaction can be effectively cleaned, greatly improving the quality of the copper foil.

[0030] The scheme is further optimized. The pretreatment component includes a pretreatment tank 2. The top of the left and right side walls of the pretreatment tank 2 are respectively rotatably connected to the second feeding rollers 30. The bottom of the pretreatment tank 2 is rotatably connected to the third feeding roller 31. The third feeding roller 31 is located between the two second feeding rollers 30. The pretreatment tank 2 is filled with chemical washing solution. The third feeding roller 31 is immersed in the chemical washing solution.

[0031] The copper foil is wound around the bottom of the first horizontal feed roller 29 to the top of the second feed roller 30 located on the side of the feeding direction, and then wound around to the bottom of the third feed roller 31. From the bottom of the third feed roller 31, it is wound around to the top of the second feed roller 30 located in the discharge direction, so that the copper foil can be immersed in the chemical cleaning solution in the pretreatment tank 2 when it passes through. The chemical cleaning solution is preferably a copper cleaning agent. The chemical cleaning solution is existing technology and will not be described in detail here.

[0032] Further optimization of the scheme: the tensioning assembly includes a support plate 10, which is located directly below the polishing and blowing section. Support rollers 9 are rotatably connected to both ends of the support plate 10. The edges of the support rollers 9 are tangent to the top surface of the support plate 10. Slide rods 7 are symmetrically fixed to the bottom of the support plate 10. The slide rods 7 are vertically slidably connected to the base 1. A spring 8 is sleeved on the slide rod 7. One end of the spring 8 abuts against the bottom of the support plate 10, and the other end of the spring 8 abuts against the top of the base 1. A pressing assembly is provided on the outer side of the support plate 10.

[0033] Further optimization of the scheme: the clamping assembly includes a sliding plate 5, which is slidably connected to the base 1. The top two sides of the sliding plate 5 are symmetrically rotatably connected to clamping rollers 6, which are located on both sides of the support plate 10. There is a gap between the clamping rollers 6 and the support rollers 9. The two support rollers 9 are located between the two clamping rollers 6. A vertically arranged rack 3 is fixedly connected to the bottom center of the sliding plate 5. The rack 3 is slidably connected to the base 1. The rack 3 is meshed with a gear 4, which is rotatably connected to the bottom of the base 1.

[0034] Further optimization of the scheme: the polishing and blowing section includes a platform 18, with a polishing roller 19 rotatably connected to the bottom center of the platform 18. The polishing roller 19 is located directly above the support plate 10. Air knives 20 are symmetrically arranged on both sides of the polishing roller 19. The middle of the air knife 20 is rotatably connected to the platform 18. One end of the air knife 20 away from the polishing roller 19 is rotatably connected to one end of the second telescopic rod 21. The other end of the second telescopic rod 21 is rotatably connected to the platform 18. The air knife 20 is connected to the air outlet of the blowing assembly. One end of the first telescopic rod 17 is fixedly connected to the top center of the platform 18. The other end of the first telescopic rod 17 is fixedly connected to the inner side of the top of the first housing 11.

[0035] Further optimization of the design: the blower assembly includes a powder collection chamber 12, the bottom of which is fixedly connected to the top of the first housing 11, and both ends of which are respectively connected to the interior of the first housing 11. Filter screens 14 are detachably connected to both ends of the powder collection chamber 12, the bottom of which is connected to the top of the first housing 11, and a rotating cover plate 13 is provided directly above the filter screen 14. The rotating cover plate 13 is rotatably connected to the top of the powder collection chamber 12.

[0036] A fan 16 is fixedly connected to the middle of the powder collection chamber 12. The air inlets at both ends of the fan 16 are connected to two filters 14 respectively. One end of a partition 27 is symmetrically fixed to both sides of the air outlet of the fan 16. The other end of the partition 27 is fixedly connected to the inner wall of the powder collection chamber 12. The air outlet of the fan 16, the two partitions 27 and the inner wall of the powder collection chamber 12 form a closed cavity that is connected to the middle of the two air knives 20 through a ventilation pipe.

[0037] The bottom of the first housing 11 is provided with an inlet and an outlet on both sides. The copper foil first enters through the inlet, passes through the bottom of the pressing roller 6 located on the side of the inlet, then wraps around the top of the support roller 9 located on the side of the inlet, and is laid on the top of the support plate 10. Then it wraps around the top of the support roller 9 located on the side of the outlet, and then wraps around the bottom of the pressing roller 6 located on the side of the outlet. Finally, it enters the water flushing assembly through the outlet.

[0038] Two pressing rollers 6 are rotatably connected to both ends of the sliding plate 5. The sliding plate 5 slides inside the base 1. Through the meshing of the gear 4 and the rack 3, when the gear 4 is driven to rotate by the motor, it will drive the rack 3 to move the sliding plate 5 inside the base 1, so that the two pressing rollers 6 can rise and fall in the vertical direction.

[0039] When the two pressing rollers 6 descend, they press on the upper surface of the copper foil. At the same time, two symmetrically arranged sliding rods 7 are fixed to the bottom of the support plate 10. The sliding rods 7 slide within the base 1. Springs 8 are sleeved on the sliding rods 7. The springs 8 are in a compressed state, so that the support plate 10 always has an upward momentum under the action of the springs 8, while the two pressing rollers 6 move vertically downward. The two cooperate with each other to achieve the tensioning of the copper foil.

[0040] After being tensioned, the copper foil is laid flat on the upper surface of the support plate 10. At this time, the first telescopic rod 17 rises and falls, driving the platform 18 to rise and fall, which in turn drives the polishing roller 19 to rise and fall, so that the polishing roller 19 presses on the surface of the copper foil. The polishing roller 19 is driven to rotate actively by the motor. While the polishing roller 19 is rotating and polishing, the air knives 20 on both sides of the polishing roller 19 are adjusted to spray angles by the second telescopic rod 21, so that the high-pressure gas blown out by the air knives 20 acts on the surface of the copper foil, and the copper powder produced by the polishing roller 19 is filled into the first box 11 under the action of wind.

[0041] Meanwhile, the air knife 20 is connected to the air outlet of the blower 16, the two partitions 27, and the sealed cavity formed by the inner wall of the powder collection bin 12 through a ventilation pipe. The air inlets on both sides of the blower 16 are connected to two filters 14 respectively. The bottom of the filters 14 is connected to the inside of the first housing 11. The feed inlet and discharge outlet of the first housing 11 are connected to the outside, so that the first housing 11 can be replenished with air through the feed inlet and discharge outlet. The air in the first housing 11 enters the blower 16 through the filters 14, and then enters the air knife 20 through the air outlet of the blower 16 and is sprayed onto the surface of the copper foil, blowing up the copper powder. The copper powder enters the filters 14 with the airflow, and due to the filtering effect of the filters 14, the copper powder cannot enter the blower 16. An anti-escape net 15 is also provided at the connection between the filters 14 and the first housing 11. Figure 2 As shown, the top cross-section of the anti-escape mesh 15 is a symmetrical C-shaped structure. The opening of the C-shaped structure faces downward, so that the copper powder is blocked by the anti-escape mesh 15 after entering and stays in the filter screen 14.

[0042] Once a certain amount of copper powder has been collected in the filter screen 14, the filter screen 14 can be removed by opening the rotating cover 13 on the top of the powder collection chamber 12 and then replaced with a new filter screen 14.

[0043] The filter 14 is slidably positioned inside the powder collection chamber 12.

[0044] Further optimization of the scheme: the water flushing assembly includes a cleaning tank 22, a fourth feeding roller 32 is rotatably connected to the feed end at the top of the cleaning tank 22, two symmetrically arranged fifth feeding rollers 33 are rotatably connected to the bottom of the cleaning tank 22, a sixth feeding roller 34 is rotatably connected to the discharge end at the top of the cleaning tank 22, and a water pump 23 is fixedly connected in the middle of the cleaning tank 22. The water pump 23 is located between the fourth feeding roller 32 and the two fifth feeding rollers 33, and the water outlet of the water pump 23 is located on the side closer to the fourth feeding roller 32.

[0045] The cleaning tank 22 is filled with clean water. After the copper foil is fed out by the surface polishing assembly, it is wound around the upper surface of the fourth feeding roller 32, and then around the lower surface of the fifth feeding roller 33 located on the feeding side, so that the copper foil is in a vertical state. The upper surface of the vertical section of the copper foil faces the water outlet of the water pump 23. The water pump 23 draws in water and pumps it out from the water outlet with a certain water pressure. The water with a certain force washes the upper surface of the vertical section of the copper foil, removing the impurities still adsorbed on the upper surface of the copper foil. Then the copper foil is wound around the lower surface of the fifth feeding roller 33 located on the discharge end side of the cleaning tank 22, and then around the upper surface of the sixth feeding roller 34 located on the discharge end side of the cleaning tank 22, and then around the lower surface of the second horizontal feeding roller 35. Under the action of the second horizontal feeding roller 35, the copper foil enters the drying assembly horizontally.

[0046] Further optimization of the scheme: the drying assembly includes a drying chamber 24, with two symmetrically arranged eighth feeding rollers 36 rotatably connected to the bottom of the drying chamber 24, and two symmetrically arranged ninth feeding rollers 37 rotatably connected to the middle of the inner side of the drying chamber 24. The two ninth feeding rollers 37 are located between the two eighth feeding rollers 36. A cold air gun 26 is provided on the top of the two ninth feeding rollers 37, and the cold air gun 26 is rotatably connected to the inner wall of the top of the drying chamber 24. A heating wire 25 is provided at the bottom of the two ninth feeding rollers 37, and the heating wire 25 is fixedly connected to the inner wall of the drying chamber 24.

[0047] Inside the drying chamber 24, two eighth feeding rollers 36 and two ninth feeding rollers 37 are arranged in an isosceles trapezoidal structure. The two ninth feeding rollers 37 are located above the two eighth feeding rollers 36. The copper foil fed in by the second horizontal feeding roller 35 is wound around the bottom of the eighth feeding roller 36 located at the feeding end, then wound around the top of the ninth feeding roller 37 located at the feeding end, then wound around the top of the other ninth feeding roller 37, then wound around the bottom of the eighth feeding roller 36 located at the discharging end, and then wound onto the take-up roller 38.

[0048] Two ninth feeding rollers 37 are set horizontally so that the copper foil is in a horizontal state. A cold air gun 26 is set above the two ninth feeding rollers 37. The cold air gun 26 is used to blow away the moisture on the surface of the copper foil. At the same time, the heating wire 25 located below the two ninth feeding rollers 37 is used to evaporate the moisture on the surface of the copper foil, thereby achieving the function of drying the copper foil.

[0049] A method for cleaning the surface of copper foil, based on the aforementioned copper foil surface cleaning equipment, includes the following steps:

[0050] S1. The produced copper foil is sequentially wound around the upper surface of the feed roller 28 and the lower surface of the first horizontal feed roller 29, and enters the pretreatment component through the first horizontal feed roller 29 to chemically clean the surface of the copper foil.

[0051] The produced copper foil is sequentially wound around the upper surface of the feed roller 28 and the lower surface of the first horizontal feed roller 29. Then, the copper foil is wound around the top of the second feed roller 30 located on the feed direction side, and then wound to the bottom of the third feed roller 31. From the bottom of the third feed roller 31, it is wound to the top of the second feed roller 30 located on the discharge direction, so that the copper foil can be immersed in the chemical washing solution in the pretreatment tank 2 when it passes through.

[0052] S2. After being chemically cleaned by the pretreatment component, the copper foil is horizontally introduced into the surface polishing component for polishing.

[0053] Copper foil enters through the feed inlet at the bottom of the first housing 11, passes through the bottom of the pressing roller 6 located on one side of the feed inlet, then wraps around the top of the support roller 9 located on the same side as the feed inlet, and is laid on the top of the support plate 10. It then wraps around the top of the support roller 9 located on the same side as the discharge outlet, and then around the bottom of the pressing roller 6 located on the same side as the discharge outlet. Finally, it wraps around the upper surface of the fourth feeding roller 32 through the discharge outlet. As the two pressing rollers 6 descend, they press against the upper surface of the copper foil. Simultaneously, under the action of the spring 8, the support plate 10 always has an upward momentum, while the two pressing rollers 6 move vertically downwards. The movement of the two components, working in tandem, achieves the tensioning of the copper foil. The tensioned copper foil lies flat on the upper surface of the support plate 10. At this time, the first telescopic rod 17 rises and falls, driving the platform 18, which in turn drives the polishing roller 19 to rise and fall, pressing the polishing roller 19 onto the surface of the copper foil. The polishing roller 19 is driven to rotate actively by a motor. While the polishing roller 19 is polishing, the air knives 20 on both sides of the polishing roller 19 are adjusted at their spray angles via the second telescopic rod 21, causing the high-pressure gas blown out by the air knives 20 to act on the surface of the copper foil. The copper powder generated by the polishing roller 19 is then dispersed into the first housing 11 by the airflow. The copper powder enters the filter screen 14 with the airflow, and the air filtered by the filter screen 14 is then sent into the air knives 20 by the fan 16.

[0054] S3. The copper foil after being processed by the surface polishing component enters the water flushing component for cleaning;

[0055] After the copper foil is fed out by the surface polishing assembly, it is wound around the upper surface of the fourth feeding roller 32, and then around the lower surface of the fifth feeding roller 33 located on the feeding side, so that the copper foil is in a vertical state. The upper surface of the vertical section of the copper foil faces the water outlet of the water pump 23. The water pump 23 draws in water and pumps it out from the water outlet with a certain water pressure. The water with a certain force washes the upper surface of the vertical section of the copper foil, removing the impurities still adsorbed on the upper surface of the copper foil. Then the copper foil is wound around the lower surface of the fifth feeding roller 33 located on the discharge end side of the cleaning tank 22, and then around the upper surface of the sixth feeding roller 34 located on the discharge end side of the cleaning tank 22, and then around the lower surface of the second horizontal feeding roller 35. Under the action of the second horizontal feeding roller 35, the copper foil enters the drying assembly horizontally.

[0056] S4. After being cleaned by the water rinsing component, the copper foil enters the drying component horizontally under the action of the second horizontal feed roller 35 and is dried. The dried copper foil is then wrapped around the take-up roller 38.

[0057] The cold air gun 26 blows away the moisture on the surface of the copper foil, while the heating wire 25 evaporates the moisture on the surface of the copper foil, thereby achieving the function of drying the copper foil.

[0058] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0059] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A copper foil surface cleaning device, characterized in that: The system includes a base (1), on which a feeding roller (28), a first horizontal feeding roller (29), a pretreatment component, a surface polishing component, a water flushing component, a second horizontal feeding roller (35), a drying component, and a receiving roller (38) are sequentially arranged along the copper foil conveying direction. The surface polishing component includes a first housing (11), inside which a tensioning component is provided. A polishing and blowing section is provided directly above the tensioning component. The top of the polishing and blowing section is fixedly connected to the inner wall of the top of the first housing (11). The polishing and blowing section is connected to a blowing component. The bottom of the blowing component is fixedly connected to the top of the first housing (11). The first housing (11) is connected to the blowing component. The pretreatment assembly includes a pretreatment tank (2), with second feeding rollers (30) rotatably connected to the top of the left and right side walls of the pretreatment tank (2), and a third feeding roller (31) rotatably connected to the bottom of the pretreatment tank (2). The third feeding roller (31) is located between the two second feeding rollers (30). The pretreatment tank (2) is filled with chemical washing liquid, and the third feeding roller (31) is immersed in the chemical washing liquid. The tensioning assembly includes a support plate (10), which is located directly below the polishing and blowing section. Support rollers (9) are rotatably connected to both ends of the support plate (10). The edge of the support roller (9) is tangent to the top surface of the support plate (10). Slide rods (7) are symmetrically fixed to the bottom of the support plate (10). The slide rods (7) are vertically slidably connected to the base (1). A spring (8) is sleeved on the slide rod (7). One end of the spring (8) abuts against the bottom of the support plate (10), and the other end of the spring (8) abuts against the top of the base (1). A pressing assembly is provided on the outer side of the support plate (10). The polishing and blowing unit includes a platform (18), a polishing roller (19) is rotatably connected to the bottom center of the platform (18), the polishing roller (19) is located directly above the support plate (10), and air knives (20) are symmetrically arranged on both sides of the polishing roller (19). The middle part of the air knife (20) is rotatably connected to the platform (18), and one end of the second telescopic rod (21) is rotatably connected to the end of the air knife (20) away from the polishing roller (19). The other end of the second telescopic rod (21) is rotatably connected to the platform (18). The air knife (20) is connected to the air outlet of the blowing assembly. One end of the first telescopic rod (17) is fixedly connected to the top center of the platform (18), and the other end of the first telescopic rod (17) is fixedly connected to the inner side of the top of the first box (11). The pressing assembly includes a sliding plate (5), which is slidably connected to the base (1). The top two sides of the sliding plate (5) are symmetrically connected to pressing rollers (6). The two pressing rollers (6) are located on both sides of the support plate (10). There is a gap between the pressing rollers (6) and the support rollers (9). The two support rollers (9) are located between the two pressing rollers (6). A vertically arranged rack (3) is fixed to the bottom center of the sliding plate (5). The rack (3) is slidably connected to the base (1). The rack (3) is meshed with a gear (4). The gear (4) is rotatably connected to the bottom of the base (1). It also includes the following steps: S1. The produced copper foil is sequentially wound around the upper surface of the feed roller (28) and the lower surface of the first horizontal feed roller (29), and enters the pretreatment assembly through the first horizontal feed roller (29) to chemically clean the surface of the copper foil. S2. The copper foil, after being chemically cleaned by the pretreatment component, enters the surface polishing component horizontally to polish the surface of the copper foil. S3. The copper foil processed by the surface polishing assembly enters the water rinsing assembly for cleaning; S4. The copper foil cleaned by the water rinsing component is horizontally fed into the drying component under the action of the second horizontal feed roller (35) and dried. The dried copper foil is then wrapped around the take-up roller (38).

2. The copper foil surface cleaning device according to claim 1, characterized in that: The blower assembly includes a powder collection chamber (12), the bottom of which is fixedly connected to the top of the first housing (11), and both ends of which are respectively connected to the interior of the first housing (11). Both ends of the powder collection chamber (12) are respectively detachably connected to a filter screen (14), the bottom of which is connected to the top of the first housing (11), and a rotating cover plate (13) is provided directly above the filter screen (14). The rotating cover plate (13) is rotatably connected to the top of the powder collection chamber (12). A fan (16) is fixedly connected to the middle of the powder collection chamber (12). The air inlets at both ends of the fan (16) are connected to the two filters (14) respectively. One end of a partition (27) is symmetrically fixed to both sides of the air outlet of the fan (16). The other end of the partition (27) is fixed to the inner wall of the powder collection chamber (12). The air outlet of the fan (16), the two partitions (27) and the inner wall of the powder collection chamber (12) form a closed cavity that is connected to the middle of the two air knives (20) through a ventilation pipe.

3. The copper foil surface cleaning device according to claim 1, characterized in that: The water flushing assembly includes a cleaning tank (22), a fourth feeding roller (32) is rotatably connected to the feed end at the top of the cleaning tank (22), two symmetrically arranged fifth feeding rollers (33) are rotatably connected to the bottom of the cleaning tank (22), a sixth feeding roller (34) is rotatably connected to the discharge end at the top of the cleaning tank (22), and a water pump (23) is fixedly connected in the middle of the cleaning tank (22). The water pump (23) is located between the fourth feeding roller (32) and the two fifth feeding rollers (33), and the water outlet of the water pump (23) is located on the side close to the fourth feeding roller (32).

4. The copper foil surface cleaning device according to claim 1, characterized in that: The drying assembly includes a drying chamber (24), with two symmetrically arranged eighth feeding rollers (36) rotatably connected to the bottom of the drying chamber (24), and two symmetrically arranged ninth feeding rollers (37) rotatably connected to the middle of the inner side of the drying chamber (24). The two ninth feeding rollers (37) are located between the two eighth feeding rollers (36). A cold air gun (26) is provided on the top of the two ninth feeding rollers (37), and the cold air gun (26) is rotatably connected to the inner wall of the top of the drying chamber (24). A heating wire (25) is provided at the bottom of the two ninth feeding rollers (37), and the heating wire (25) is fixedly connected to the inner wall of the drying chamber (24).

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