A foil rolling mill and its application method for cleaning the surface of battery aluminum foil by blowing away rolling oil.

Abstract

This invention discloses a foil rolling mill and its method for cleaning the rolling oil film on the surface of battery aluminum foil, relating to the field of foil rolling mill technology. The mill includes an installation frame and a rinsing assembly. The installation frame has an outlet pipe fixed inside the drain port on the left side, with a solenoid valve mounted on the circumferential surface of the outlet pipe. Two corresponding guide rod oil separators are rotatably connected to the left side of the installation frame, with their outlets connected to the outlet pipe. A winding assembly is installed on the right side of the installation frame, and a wiping assembly is installed on the right side of the installation frame. A drying assembly is installed on the front side of the installation frame, connected to the wiping assembly. A rolling assembly is installed in the middle of the installation frame, and a reset assembly and a pressing assembly are also installed inside the installation frame. This method can thoroughly clean the rolling oil film from the surface of the aluminum foil.

Description

Technical Field

[0001] This invention relates to the field of foil rolling mill technology, specifically to a foil rolling mill and its method for cleaning the surface of battery aluminum foil by blowing away rolling oil. Background Technology

[0002] High-precision ultra-thin aluminum foil for new energy batteries, as a key current collector material for lithium and sodium-ion batteries, has strict requirements for flatness, mechanical properties, and edge quality. The aluminum foil rolling mill, as the core processing equipment, achieves precise forming of the aluminum foil through a multi-pass rolling process. During the rolling process, rolling oil, as a process lubricant, is widely applied to the aluminum foil surface to ensure the stability of the rolling process and surface quality.

[0003] Currently, after aluminum foil rolling, the residual rolling oil film on the surface of the aluminum foil is difficult to remove effectively, directly affecting the surface cleanliness of the finished aluminum foil roll. Traditional processing methods cannot completely remove the oil film while ensuring the mechanical properties of the aluminum foil, making it difficult to improve the product qualification rate. In addition, residual rolling oil may affect the subsequent coating process of battery electrodes, reducing the consistency of battery performance. This problem has become a key bottleneck restricting the improvement of aluminum foil quality for new energy batteries. To address this issue, we propose a foil rolling mill and its application method for cleaning rolling oil from the surface of battery aluminum foil. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the existing defects and provide a foil rolling mill and its method for cleaning the rolling oil film on the surface of battery aluminum foil, which can completely remove the rolling oil film on the surface of aluminum foil and effectively solve the problems in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a foil rolling mill for cleaning the surface of battery aluminum foil by blowing away rolling oil, comprising an installation frame and a flushing assembly;

[0006] Mounting Frame: A drain pipe is fixed inside the drain port on the left side, and a solenoid valve is installed on the circumference of the drain pipe. An oil separator is installed at the lower left end of the mounting frame. Two corresponding guide rods are rotatably connected to the left side of the mounting frame. The drain port of the oil separator is connected to the drain pipe. A winding assembly is installed on the right side of the mounting frame. A wiping assembly is installed on the right side of the mounting frame. A drying assembly is installed on the front side of the mounting frame and is connected to the wiping assembly. A rolling assembly is installed in the middle of the mounting frame. A reset assembly and an extrusion assembly are installed inside the mounting frame and are connected to each other.

[0007] The rinsing assembly includes a first connecting tank, a connecting hose, a connecting frame, and an atomizing nozzle. The front side of the mounting frame has two corresponding fixing holes, and the connecting tank is fixed inside the fixing holes. The first connecting tank has evenly distributed liquid outlets on its circumferential surface, and the connecting hose is fixed inside the liquid outlets. The connecting frame is fixed on the end face of the connecting hose away from the first connecting tank, and the atomizing nozzle is installed inside the connecting frame. The reset assembly is connected to all the connecting frames. The aluminum foil is rinsed by setting up the rinsing assembly.

[0008] Wherein: the input terminals of the oil separator and the solenoid valve are both electrically connected to the output terminals of an external control switch group.

[0009] Furthermore, the reset assembly includes a support frame, a pressing plate, a guide strip, and a reset spring. Two corresponding guide strips are fixed inside the mounting frame. The support frame is slidably connected to the side of the guide strip. The pressing plate is fixed to the side of the support frame. Two corresponding reset springs are sleeved on the side of the guide strip. One adjacent end of the two reset springs is fixed to the front and rear sides of the support frame, respectively. The other ends of the two reset springs are fixed to the front and rear sides inside the mounting frame, respectively. The reset assembly drives the rack to reset.

[0010] Furthermore, the extrusion assembly includes a fixed plate, a second motor, a turntable, and a toggle plate. Two corresponding fixed plates are fixed inside the mounting frame. The second motor is installed on the right side of the fixed plate. A turntable is fixed on the output shaft of the second motor. Three corresponding toggle plates are fixed on the circumference of the turntable. The turntable corresponds to the extrusion plate. The input end of the second motor is electrically connected to the output end of an external control switch group. The extrusion assembly is used to extrude the extrusion plate.

[0011] Furthermore, the rotating assembly includes a first fixing strip, a gear, and a rack. Two corresponding first fixing strips are fixed inside the mounting frame. The left side of the first fixing strip has evenly distributed rotating holes. The gear is rotatably connected inside the rotating holes. The gear is fixed on the side of the corresponding connecting frame. A rack is fixed on the side of the support frame away from the extrusion plate. The two racks mesh with the gear. By setting the rotating assembly, all connecting frames are driven to swing.

[0012] Furthermore, the drying assembly includes a heater, an air injection tee, a second connecting barrel, and an air outlet box. The heater is installed at the right end of the front side of the mounting frame. An air injection tee is fixed inside the air outlet of the heater. Two corresponding second connecting barrels are connected to the two ends of the air injection tee away from the heater. An air outlet box is fixed on the end face of the second connecting barrel. The inner cavity of the second connecting barrel is connected to the inner cavity of the air outlet box. The input end of the heater is electrically connected to the output end of an external control switch group. The aluminum foil is dried by setting up the drying assembly.

[0013] Furthermore, the wiping assembly includes a connecting plate and a wiping sponge strip. Two corresponding connecting plates are fixed inside the right side of the mounting frame. A wiping sponge strip is fixed on the side of the connecting plate. An opening is provided on the side of the connecting plate. The air outlet box is fixed inside the corresponding opening. The wiping assembly is used to wipe the cleaned aluminum foil.

[0014] Furthermore, the rolling assembly includes a first motor, a rolling roll, and a gear ring. Two corresponding connecting holes are opened in the middle of the front side of the mounting frame. The rolling roll is rotatably connected inside the connecting holes. A gear ring is fixed to the front end of the surface of the rolling roll, and the two gear rings mesh with each other. The first motor is installed on the rear side of the mounting frame. The output shaft of the first motor is fixed to the rear end of the upper rolling roll. The input end of the first motor is electrically connected to the output end of an external control switch group. The aluminum foil is rolled by setting up the rolling assembly.

[0015] Furthermore, the winding assembly includes a second fixing bar, a third motor, and a winding shaft. The second fixing bar is fixed to the right side of the mounting frame, and the third motor is mounted on the front side of the second fixing bar. The winding shaft is fixed on the output shaft of the third motor. The input end of the third motor is electrically connected to the output end of an external control switch group. The aluminum foil is wound up by setting the winding assembly.

[0016] Furthermore, a water inlet tee is fixed to the rear end of the two first connecting tanks. A connecting flange ring is fixed to the surface of the water inlet tee at the end away from the two first connecting tanks. The heated hot water is injected into the interior of the two first connecting tanks through the water inlet tee.

[0017] A method for using a foil rolling mill for cleaning the surface of battery aluminum foil by blowing away rolling oil includes the following steps:

[0018] S1: First, connect one end of the aluminum foil to the winding shaft. After connection, start the third motor to make the winding shaft rotate and drive the aluminum foil to move to the right. At this time, the first motor, under the action of two meshing gear rings, drives two rolling rollers to rotate and precisely roll the aluminum foil. During the rolling process, rolling oil is continuously supplied to form a lubricating film.

[0019] S2: During the rolling process, hot water heated in the external water tank is injected into the two first connecting barrels through the inlet tee pipe, and then delivered to the atomizing nozzles installed in all the connecting frames through evenly distributed connecting hoses to form high-pressure atomized spray, which is sprayed onto the upper and lower sides of the aluminum foil. At the same time, the second motor drives the turntable to drive the actuating plate to periodically push the extrusion plate, causing the support frame to move back and forth along the guide bar. Through the meshing transmission of rack and gear, the atomizing nozzles are oscillating and spraying, completing the dynamic cleaning of the aluminum foil on both sides.

[0020] S3: The waste liquid of mixed rolling oil is guided by the guide rod to the oil separator for oil-water separation. The separated rolling oil is recovered through the liquid outlet pipe controlled by the solenoid valve, and the purified water flows back into the internal water tank for heating and circulation.

[0021] S4: After cleaning, the aluminum foil is moved to the right between the two wiping sponge strips and wiped by the two wiping sponge strips to remove the residual oil film on the surface. Then, the heater is turned on to deliver hot air to the air outlet box through the air injection tee to dry the aluminum foil with hot air on both sides.

[0022] S5: The dried aluminum foil is wound up at a constant speed to the right by the winding shaft, completing the cleaning process.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows: The foil rolling mill and its method for cleaning the surface of aluminum foil by blowing away rolling oil have the following advantages:

[0024] 1. By driving the atomizing nozzle to swing and spray through the reset component and the extrusion component, the cleaning liquid dynamically covers the aluminum foil surface at multiple angles, breaking through the limitations of traditional static rinsing, realizing efficient cleaning of both sides of the aluminum foil, significantly improving the oil film peeling effect, and ensuring that the surface cleanliness meets the requirements of subsequent processes.

[0025] 2. By using the coordinated control of an oil separator and a solenoid valve, the rolling oil and cleaning water can be effectively separated and recycled, forming a resource recycling system. This reduces production costs and wastewater discharge, meeting the requirements of green production.

[0026] 3. Through a three-stage process of high-pressure atomized rinsing, mechanical wiping and hot air drying, residual oil film on the surface of aluminum foil is removed layer by layer, solving the problem of insufficient effect of single cleaning methods and significantly improving the surface quality and process stability of finished products. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the front structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the rolling assembly structure of the present invention;

[0029] Figure 3 This is a schematic diagram of the flushing assembly structure of the present invention;

[0030] Figure 4 This is a schematic diagram of the reset component structure of the present invention;

[0031] Figure 5 This is a schematic diagram of the wiping component structure of the present invention.

[0032] In the diagram: 1. Mounting frame; 2. Rolling assembly; 21. First motor; 22. Rolling roll; 23. Gear ring; 3. Flushing assembly; 31. First connecting barrel; 32. Connecting hose; 33. Connecting frame; 34. Atomizing nozzle; 4. Reset assembly; 41. Support frame; 42. Extrusion plate; 43. Guide strip; 44. Reset spring; 5. Extrusion assembly; 51. Fixing plate; 52. Second motor; 53. Turntable; 54. Actuating plate; 6. Rotating assembly; 61. First fixing strip; 62. Gear; 63. Rack; 7. Drying assembly; 71. Warm air blower; 72. Air injection tee; 73. Second connecting barrel; 74. Air outlet box; 8. Rewinding assembly; 81. Second fixing strip; 82. Third motor; 83. Rewinding shaft; 9. Wiping assembly; 91. Connecting plate; 92. Wiping sponge strip; 10. Guide rod; 11. Liquid outlet pipe; 12. Solenoid valve; 13. Water inlet tee; 14. Connecting flange ring; 15. Oil separator. Detailed Implementation

[0033] 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.

[0034] Please see Figure 1-5 This embodiment provides a technical solution: a foil rolling mill for cleaning the surface of battery aluminum foil by blowing away rolling oil, including a mounting frame 1 and a flushing assembly 3;

[0035] Mounting frame 1: A drain pipe 11 is fixed inside the drain outlet on the left side. A solenoid valve 12 is installed on the circumference of the drain pipe 11. An oil separator 15 is installed at the lower left end inside the mounting frame 1. Two corresponding guide rods 10 are rotatably connected to the left side inside the mounting frame 1. The outlet of the oil separator 15 is connected to the drain pipe 11. A winding assembly 8 is installed on the right side of the mounting frame 1. A wiping assembly 9 is installed on the right side inside the mounting frame 1. A drying assembly 7 is installed on the front side of the mounting frame 1 and is connected to the wiping assembly 9. A rolling assembly 2 is installed in the middle inside the mounting frame 1. A reset assembly 4 and an extrusion assembly 5 are installed inside the mounting frame 1. The reset assembly 4 and the extrusion assembly 5 are connected. The reset assembly 4 includes a support frame 4. 1. The mounting frame 1 includes a pressing plate 42, guide bars 43, and return springs 44. Two corresponding guide bars 43 are fixed inside the mounting frame 1. A support frame 41 is slidably connected to the side of the guide bars 43. A pressing plate 42 is fixed to the side of the support frame 41. Two corresponding return springs 44 are sleeved on the side of the guide bars 43. One adjacent end of the two return springs 44 is fixed to the front and rear sides of the support frame 41, respectively. The other ends of the two return springs 44 are fixed to the front and rear sides inside the mounting frame 1, respectively. The pressing assembly 5 includes a fixing plate 51, a second motor 52, a turntable 53, and a toggle plate 54. Two corresponding fixing plates 51 are fixed inside the mounting frame 1. A second motor 52 is mounted on the right side of the fixing plate 51. The output shaft of the second motor 52 is fixed with... There is a turntable 53, and three corresponding actuating plates 54 are fixed on the circumference of the turntable 53. The turntable 53 corresponds to the extrusion plate 42. The input end of the second motor 52 is electrically connected to the output end of the external control switch group. The rotating assembly 6 includes a first fixing strip 61, a gear 62 and a rack 63. Two corresponding first fixing strips 61 are fixed inside the mounting frame 1. The left side of the first fixing strip 61 has evenly distributed rotating holes. The gear 62 is rotatably connected inside the rotating holes. The gear 62 is fixed on the side of the corresponding connecting frame 33. A rack 63 is fixed on the side of the support frame 41 away from the extrusion plate 42. The two racks 63 mesh with all the upper and lower gears 62 respectively. The drying assembly 7 includes a warm air blower 71, an air injection three-way pipe 72, and a second connecting... The mounting frame 1 includes a heat exchanger 71 and an air outlet box 74. A heat exchanger 71 is mounted on the right side of the front side of the mounting frame 1. An air injection tee pipe 72 is fixed inside the air outlet of the heat exchanger 71. Two corresponding second connecting barrels 73 are connected to the ends of the air injection tee pipe 72 furthest from the heat exchanger 71. An air outlet box 74 is fixed to the end face of each second connecting barrel 73, and the inner cavity of the second connecting barrel 73 communicates with the inner cavity of the air outlet box 74. The input end of the heat exchanger 71 is electrically connected to the output end of an external control switch group. The wiping assembly 9 includes a connecting plate 91 and a wiping sponge strip 92. Two corresponding connecting plates 91 are fixed to the right side of the mounting frame 1. A wiping sponge strip 92 is fixed to the side of each connecting plate 91. An opening is provided on the side of each connecting plate 91, and the air outlet box 74 is fixed inside the corresponding opening.The rolling assembly 2 includes a first motor 21, a rolling roll 22, and a gear ring 23. Two corresponding connecting holes are opened in the middle of the front side of the mounting frame 1. The rolling roll 22 is rotatably connected inside the connecting holes. A gear ring 23 is fixed to the front end of the surface of the rolling roll 22, and the two gear rings 23 mesh. The first motor 21 is mounted on the rear side of the mounting frame 1. The output shaft of the first motor 21 is fixed to the rear end of the upper rolling roll 22. The input end of the first motor 21 is electrically connected to the output end of an external control switch group. The winding assembly 8 includes a second fixing bar 81, a third motor 82, and a winding shaft 83. A second fixing bar 81 is fixed to the right side of the mounting frame 1. A fixing bar 81 is used. A third motor 82 is mounted on the front side of the second fixing bar 81. A winding shaft 83 is fixed on the output shaft of the third motor 82. The input end of the third motor 82 is electrically connected to the output end of an external control switch group. The aluminum foil is wound up by the winding assembly 8, rolled by the rolling assembly 2, wiped by the wiping assembly 9, dried by the drying assembly 7, and all connecting frames 33 are oscillated by the rotating assembly 6. The two extrusion plates 42 are extruded by the extrusion assembly 5, and the rack 62 is reset by the reset assembly 4.

[0036] The rinsing assembly 3 includes a first connecting tank 31, a connecting hose 32, a connecting frame 33, and an atomizing nozzle 34. The front side of the mounting frame 1 has two corresponding fixing holes. The first connecting tank 31 is fixed inside the fixing holes. The circumferential surface of the first connecting tank 31 has evenly distributed liquid outlets. The connecting hose 32 is fixed inside the liquid outlets. The connecting frame 33 is fixed on the end face of the connecting hose 32 away from the first connecting tank 31. The atomizing nozzle 34 is installed inside the connecting frame 33. The reset assembly 4 is connected to all the connecting frames 33. The aluminum foil is rinsed by setting the rinsing assembly 3.

[0037] The input terminals of the oil separator 15 and the solenoid valve 12 are both electrically connected to the output terminals of an external control switch assembly.

[0038] Wherein: a water inlet tee pipe 13 is fixed at the rear end inside the two first connecting tanks 31, and a connecting flange ring is fixed on the surface of the end of the water inlet tee pipe 13 away from the two first connecting tanks 31. The heated hot water is injected into the interior of the two first connecting tanks 31 through the water inlet tee pipe 13.

[0039] A method for using a foil rolling mill for cleaning the surface of battery aluminum foil by blowing away rolling oil includes the following steps:

[0040] S1: First, connect one end of the aluminum foil to the take-up shaft 83. After connection, start the third motor 82 to make the take-up shaft 83 rotate and drive the aluminum foil to move to the right. At this time, the first motor 21, under the action of two meshing gear rings 23, drives the two rolling rollers 22 to rotate and precisely roll the aluminum foil. During the rolling process, rolling oil is continuously supplied to form a lubricating film.

[0041] S2: During the rolling process, hot water heated in the external water storage tank is injected into the interior of the two first connecting barrels 31 through the water inlet tee pipe 13, and then transported to the interior of the atomizing nozzles 34 installed in all the connecting frames 33 through the evenly distributed connecting hoses 32, forming a high-pressure atomized spray, which is sprayed onto the upper and lower sides of the aluminum foil. At the same time, the second motor 52 drives the turntable 53 to drive the actuating plate 54 to periodically push the extrusion plate 42, so that the support frame 41 moves back and forth along the guide bar 43. Through the meshing transmission of the rack 63 and the gear 62, the atomizing nozzles 34 swing and spray, completing the dynamic cleaning of the aluminum foil on both sides.

[0042] S3: The waste liquid of mixed rolling oil is guided by the guide rod 10 to the oil separator 15 for oil-water separation. The separated rolling oil is recovered through the outlet pipe 11 controlled by the solenoid valve 12, and the purified water flows back into the interior of the external water tank for heating and circulation.

[0043] S4: After cleaning, the aluminum foil moves to the right between the two wiping sponge strips 92 and is wiped by the two wiping sponge strips 92 to remove the residual oil film on the surface. Then, the heater 71 is started to deliver hot air through the air injection three-way pipe 72 to the air outlet box 74 to dry the aluminum foil with hot air on both sides.

[0044] S5: The dried aluminum foil is wound up at a constant speed to the right by the take-up shaft 83, completing the cleaning process.

[0045] It is worth noting that the external control switch group disclosed in the above embodiments is equipped with buttons that correspond one-to-one with the first motor 21, the second motor 52, the third motor 82, the solenoid valve 12 and the heater 71. The first motor 21, the second motor 52, the third motor 82, the solenoid valve 12 and the heater 71 can be freely configured according to the actual application scenario.

[0046] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A foil rolling mill for cleaning the surface of battery aluminum foil by blowing away rolling oil, characterized in that: Includes the mounting frame (1) and the flushing assembly (3); Mounting frame (1): The drain port on the left side is fixed with a drain pipe (11). A solenoid valve (12) is installed on the circumferential surface of the drain pipe (11). An oil separator (15) is installed on the lower left side of the mounting frame (1). Two corresponding guide rods (10) are rotatably connected to the left side of the mounting frame (1). The outlet of the oil separator (15) is connected to the drain pipe (11). A winding assembly (8) is installed on the right side of the mounting frame (1). A wiping assembly (9) is installed on the right side of the mounting frame (1). A drying assembly (7) is installed on the front side of the mounting frame (1). The drying assembly (7) is connected to the wiping assembly (9). A rolling assembly (2) is installed in the middle of the mounting frame (1). A reset assembly (4) and an extrusion assembly (5) are installed inside the mounting frame (1). The reset assembly (4) and the extrusion assembly (5) are connected. The rinsing assembly (3) includes a first connecting barrel (31), a connecting hose (32), a connecting frame (33), and an atomizing nozzle (34). The front side of the mounting frame (1) has two corresponding fixing holes. The first connecting barrel (31) is fixed inside the fixing holes. The circumferential surface of the first connecting barrel (31) has evenly distributed liquid outlets. The connecting hose (32) is fixed inside the liquid outlets. The connecting frame (33) is fixed on the end face of the connecting hose (32) away from the first connecting barrel (31). The atomizing nozzle (34) is installed inside the connecting frame (33). The reset assembly (4) is connected to all the connecting frames (33). Wherein: the input ends of the oil separator (15) and the solenoid valve (12) are electrically connected to the output ends of the external control switch group; the reset assembly (4) includes a support frame (41), a pressing plate (42), a guide strip (43), and a reset spring (44); two corresponding guide strips (43) are fixed inside the mounting frame (1); the support frame (41) is slidably connected to the side of the guide strip (43); the pressing plate (42) is fixed to the side of the support frame (41); two corresponding reset springs (44) are sleeved on the side of the guide strip (43); one end of the two reset springs (44) adjacent to each other is fixed to the front and rear sides of the support frame (41), and the other ends of the two reset springs (44) are respectively fixed to the front and rear sides of the support frame (41). The extrusion assembly (5) is fixed on the front and rear sides inside the mounting frame (1). The extrusion assembly (5) includes a fixed plate (51), a second motor (52), a turntable (53), and a toggle plate (54). There are two corresponding fixed plates (51) fixed inside the mounting frame (1). The second motor (52) is installed on the right side of the fixed plate (51). The turntable (53) is fixed on the output shaft of the second motor (52). Three corresponding toggle plates (54) are fixed on the circumferential surface of the turntable (53). The turntable (53) corresponds to the extrusion plate (42). The input end of the second motor (52) is electrically connected to the output end of the external control switch group. The extrusion assembly (5) is used to extrude the extrusion plate (42).It also includes a rotating assembly (6), which includes a first fixing strip (61), a gear (62) and a rack (63). The mounting frame (1) has two corresponding first fixing strips (61) fixed inside. The left side of the first fixing strip (61) is provided with evenly distributed rotating holes. The gear (62) is rotatably connected inside the rotating holes. The gear (62) is fixed on the side of the corresponding connecting frame (33). The rack (63) is fixed on the side of the support frame (41) away from the extrusion plate (42). The two racks (63) mesh with the gear (62). The drying assembly (7) includes a heater (71), an air injection three-way pipe (72), a second connecting barrel (73) and an air outlet box (74). The heater (71) is installed on the right side of the front side of the mounting frame (1). An air injection tee (72) is fixed inside the air outlet of the heater (71). Two corresponding second connecting barrels (73) are connected to the ends of the air injection tee (72) furthest from the heater (71). An air outlet box (74) is fixed to the end face of the second connecting barrel (73). The inner cavity of the second connecting barrel (73) communicates with the inner cavity of the air outlet box (74). The input end of the heater (71) is electrically connected to the output end of an external control switch group. The wiping assembly (9) includes a connecting plate (91) and a wiping sponge strip (92). Two corresponding connecting plates (91) are fixed to the right side inside the mounting frame (1). A wiping sponge strip (92) is fixed to the side of the connecting plate (91). An opening is provided on the side of the connecting plate (91), and the air outlet box (74) is fixed inside the corresponding opening.

2. The foil rolling mill for cleaning the surface of battery aluminum foil by rolling oil blowing according to claim 1, characterized in that: The rolling assembly (2) includes a first motor (21), a rolling roll (22) and a gear ring (23). Two corresponding connecting holes are opened in the middle of the front side of the mounting frame (1). The rolling roll (22) is rotatably connected inside the connecting holes. The front end of the surface of the rolling roll (22) is fixed with a gear ring (23). The two gear rings (23) mesh with each other. The first motor (21) is installed on the rear side of the mounting frame (1). The output shaft of the first motor (21) is fixed to the rear end of the upper rolling roll (22). The input end of the first motor (21) is electrically connected to the output end of an external control switch group.

3. The foil rolling mill for cleaning the surface of battery aluminum foil by rolling oil blowing according to claim 2, characterized in that: The winding assembly (8) includes a second fixing bar (81), a third motor (82) and a winding shaft (83). The second fixing bar (81) is fixed on the right side of the mounting frame (1). The third motor (82) is installed on the front side of the second fixing bar (81). The winding shaft (83) is fixed on the output shaft of the third motor (82). The input end of the third motor (82) is electrically connected to the output end of an external control switch group.

4. The foil rolling mill for cleaning the surface of battery aluminum foil by rolling oil blowing according to claim 3, characterized in that: The rear end of the two first connecting barrels (31) is fixed with a water inlet tee pipe (13), and a connecting flange ring is fixed on the surface of the water inlet tee pipe (13) away from the two first connecting barrels (31).

5. The method of using a foil rolling mill for cleaning the surface of battery aluminum foil by blowing away rolling oil according to claim 4, characterized in that: Includes the following steps: S1: First, connect one end of the aluminum foil to the winding shaft (83). After connection, start the third motor (82) to make the winding shaft (83) rotate and drive the aluminum foil to move to the right. At this time, the first motor (21) is started and drives the two rolling rollers (22) to rotate under the action of two meshing gear rings (23) to perform precision rolling on the aluminum foil. During the rolling process, rolling oil is continuously supplied to form a lubricating film. S2: During the rolling process, the hot water heated in the external water tank is injected into the interior of the two first connecting barrels (31) through the water inlet tee pipe (13), and then transported to the interior of the atomizing nozzles (34) installed in all the connecting frames (33) through the evenly distributed connecting hoses (32), forming a high-pressure atomizing spray, which is sprayed towards the upper and lower sides of the aluminum foil. At the same time, the second motor (52) drives the turntable (53) to drive the actuating plate (54) to periodically push the extrusion plate (42), so that the support frame (41) moves back and forth along the guide strip (43). Through the meshing transmission of the rack (63) and the gear (62), the atomizing nozzles (34) swing and spray, completing the dynamic cleaning of the aluminum foil on both sides. S3: The waste liquid of the mixed rolling oil is guided to the oil separator (15) by the guide rod (10) for oil-water separation. The separated rolling oil is recovered through the outlet pipe (11) controlled by the solenoid valve (12), and the purified water flows back to the interior of the external water tank for heating and circulation. S4: After cleaning, the aluminum foil is moved to the right between the two wiping sponge strips (92) and wiped by the two wiping sponge strips (92) to remove the residual oil film on the surface. Then, the heater (71) is started to deliver hot air to the air outlet box (74) through the air injection three-way pipe (72) to dry the aluminum foil with hot air on both sides. S5: The dried aluminum foil is wound up at a constant speed to the right by the winding shaft (83) to complete the cleaning.

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