Surface-coated battery aluminum foil integrated coating machine and use method thereof

Abstract

The invention relates to the technical field of coating machines, in particular to a surface-coated battery aluminum foil integrated coating machine and a using method thereof.The surface-coated battery aluminum foil integrated coating machine comprises a controller and a workbench assembly, the workbench assembly is fixedly connected to one side of the controller, a frame assembly is fixedly connected to the upper end of the workbench assembly, and a discharging assembly is fixedly connected to the inner side of the frame assembly; a material control assembly is fixedly connected to the inner side of the frame assembly, an impurity removing assembly is fixedly connected to the inner side of the frame assembly, a drying assembly is fixedly connected to the inner side of the frame assembly, the material control assembly comprises a material flowing assembly, the material flowing assembly comprises a protection frame shell, a feeding port is formed in the inner side of the upper end of the protection frame shell, and a rubber half cylinder is fixedly connected to one side of the feeding port. And a bottom ring is fixedly connected to the bottom end of the protection frame shell, and a fan-shaped rubber sheet is fixedly connected to the inner side of the bottom ring. According to the device, precise control over the discharging amount and speed of the nano graphene coating is achieved, the phenomenon that coating discharging is not uniform is avoided, and the uniformity of a coating is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of coating machines, and particularly to an integrated coating machine for surface-coated battery aluminum foil and its usage method. Background Art

[0002] An integrated coating machine for surface-coated battery aluminum foil is a device specifically used for coating conductive materials on the surface of battery aluminum foil. This conductive material is usually a carbon-based material, such as nano-conductive graphite and carbon-coated particles. By evenly and finely coating the conductive coating on the aluminum foil, the device can significantly improve the conductive performance of the battery, reduce the internal contact resistance of the battery, and increase the adhesive adhesion between the active material and the current collector. In addition, the coating technology can improve the energy density of the battery, inhibit battery polarization, and increase the battery cycle life. It is a breakthrough technological innovation. The application of this coating machine is of great significance for improving the overall performance of lithium batteries, especially for improving the consistency of battery packs, extending the life of battery packs, and reducing the cost of battery packs. Battery aluminum foil is a key material in lithium-ion batteries, mainly used as the positive current collector. It has the characteristics of high electrical conductivity, high stability, strong adhesion, low cost, flexibility, and thinness, and is an important part of the lithium battery electrode structure. Nano-graphene coating usually refers to a coating formed by dispersing nano-scale graphene materials in a liquid medium. This coating has the characteristics of a liquid and can be coated on various substrates to form a uniform coating. During the coating process of nano-graphene coating on battery aluminum foil, if the feeding amount and speed are not strictly controlled, it may lead to the problem of uneven coating. Specifically, the moisture or other solvents contained in the coating, if not accurately measured and controlled, will cause unevenness during the coating process. This not only affects the appearance quality of the battery aluminum foil, but more importantly, it will affect the overall performance of the battery, such as internal resistance, charge and discharge performance, and cycle stability. Therefore, an integrated coating machine for surface-coated battery aluminum foil and its usage method are proposed to solve the above problems. Summary of the Invention

[0003] The purpose of the present invention is to provide an integrated coating machine for surface-coated battery aluminum foil and its usage method to solve the problem that if the feeding amount and speed are not strictly controlled during the coating process of nano-graphene coating on battery aluminum foil, it may lead to the problem of uneven coating.

[0004] To achieve the above purpose, the present invention provides the following technical solutions: An integrally coated battery aluminum foil surface coating machine and its usage method, including a controller and a workbench component. One side of the controller is fixedly connected with the workbench component. The upper end of the workbench component is fixedly connected with a frame component. Inside the frame component, a blanking component is fixedly connected, a material control component is fixedly connected, a impurity removal component is fixedly connected, and a drying component is fixedly connected. The material control component includes a material flow component. The material flow component includes a protective frame housing. Inside the upper end of the protective frame housing, a material inlet is opened. One side of the material inlet is fixedly connected with a rubber semi-cylinder. The bottom end of the protective frame housing is fixedly connected with a bottom ring. Inside the bottom ring, a sector-shaped rubber sheet is fixedly connected. The top end of the material flow component is fixedly connected with a metal through pipe. The top end of the metal through pipe is fixedly connected with a flexible pipe. The rear end of the material flow component is fixedly connected with a folding fixing plate. One side of the lower end of the material flow component is fixedly connected with a limiting baffle. Inside the lower end of the material flow component, a first spring fixing shaft is rotatably connected through a bearing. Outside the first spring fixing shaft, a first hairspring is fixedly connected. One side of the first hairspring is fixedly connected with a scraper. Inside the material flow component, a rotating material control mechanism is installed. The rotating material control mechanism includes a first servo motor. The end of the main shaft of the first servo motor is fixedly connected with a first shaft column rotating rod. Outside the first shaft column rotating rod, an inner hole support plate is rotatably connected. Outside the first shaft column rotating rod, a conveying rotating roller is fixedly connected. Outside the conveying rotating roller, a conveyor belt is sleeved. One side of the conveyor belt is fixedly connected with a limiting ear seat. Inside the limiting ear seat, a metal bone column is rotatably connected. Outside the metal bone column, a rubber sleeve is fixedly connected. Inside the material flow component, a second shaft column rotating rod is rotatably connected.

[0005] As a further optimized content of the present invention, wherein: the impurity removal component includes a dust storage shell. The bottom end of the dust storage shell is fixedly connected with an inverted folding plate. Inside the inverted folding plate, a second hairspring is rotatably connected. Outside the second hairspring, a second spring fixing shaft is fixedly connected. One side of the second spring fixing shaft is fixedly connected with a rotating arm. Inside the rotating arm, an outer rubber shaft column is rotatably connected. Inside the upper end of the dust storage shell, a filter plate is fixedly connected. Inside the lower end of the inverted folding plate, a cleaning driving component is installed. One side of the dust storage shell is fixedly connected with a impurity passing pipe. The cleaning driving component includes a fourth servo motor. The end of the main shaft of the fourth servo motor is fixedly connected with a hollow impurity collecting shell. Outside the hollow impurity collecting shell, a nylon strip is fixedly connected. Inside the hollow impurity collecting shell, an impurity passing port is opened. The left end of the hollow impurity collecting shell is rotatably connected through a bearing with a second hollow shaft cylinder. One side of the second hollow shaft cylinder is fixedly connected with a second servo motor.

[0006] As a further optimized content of the present invention, wherein: the drying component includes a stable metal frame, a pressurizing mechanism is installed inside the stable metal frame, a third servo motor is fixedly connected to one side of the stable metal frame, the end of the main shaft of the third servo motor is fixedly connected to an aluminum alloy sleeve, a hot air outlet is provided inside the aluminum alloy sleeve, a heating wire is fixedly connected inside the aluminum alloy sleeve, the left end of the aluminum alloy sleeve is rotatably connected to a first hollow shaft cylinder through a bearing, and a first fan is fixedly connected to one side of the first hollow shaft cylinder.

[0007] As a further optimized content of the present invention, wherein: the workbench component includes a machine table, a conveying device is installed inside the upper end of the machine table, a battery aluminum foil body is installed on the upper end of the machine table, and a stabilizing frame is fixedly connected to the top of the machine table.

[0008] As a further optimized content of the present invention, wherein: the frame component includes a hollow shell, an electric telescopic rod is fixedly connected to one side of the hollow shell, a connecting block plate is fixedly connected to the bottom end of the electric telescopic rod, a limiting telescopic rod is fixedly connected inside the hollow shell, an internal connecting plate is fixedly connected inside the hollow shell, a spring telescopic rod is fixedly connected to one side of the internal connecting plate, and a fixed machine frame is fixedly connected to the bottom end of the limiting telescopic rod.

[0009] As a further optimized content of the present invention, wherein: the blanking component includes a material box, a stepping motor is fixedly connected to one side of the material box, a shaft column connecting rod is fixedly connected to the end of the main shaft of the stepping motor, a stirring column is fixedly connected to the outside of the shaft column connecting rod, a blanking port hole is provided inside the bottom end of the material box, and a vibrator is fixedly connected to the front end of the material box.

[0010] As a further optimized content of the present invention, wherein: the inside of the upper end of the machine table is hollow, a bracket is installed on the top of the machine table, a roller is rotatably connected to the bracket at the upper end of the machine table, the bottom end of the battery aluminum foil body is attached to the top end of the conveying device, and one side of the stabilizing frame is fixedly connected to the outside of the hollow shell.

[0011] As a further optimized content of the present invention, wherein: the inside of the hollow shell is hollow, one side of the spring telescopic rod is fixedly connected to the outside of the material box, the bottom end of the connecting block plate is fixedly connected to the right side of the fixed machine frame, the inside of the fixed machine frame is fixedly connected to the outside of the material flow component through a bracket, the inside of the fixed machine frame is fixedly connected to the outside of the dust storage shell through a bracket, and the inside of the fixed machine frame is fixedly connected to the outside of the stable metal frame through a bracket.

[0012] As a further optimized content of the present invention, wherein: the top end of the soft pipeline is fixedly connected to the material box near the lower end of the blanking port hole, the number of the blanking port holes corresponds to the number of the soft pipelines one by one, the inner side of the material box is hollow, the inner side of the material box, the blanking port hole, the inner side of the soft pipeline, the inner side of the metal through pipe and the feeding port are communicated, the feeding port is communicated with the inner side of the rubber half cylinder, the shape of the sector rubber sheet is a sector body, the sector rubber sheets are attached to each other, one side of the first servo motor is fixedly connected to one side of the material flow component, and the outer side of the rubber sleeve is attached to the outer side of the rubber half cylinder.

[0013] A method for using an integrated coating machine for surface-coated battery aluminum foil S1: When coating the surface of the battery aluminum foil and accurately controlling the amount and speed of the nano-graphene coating material discharged to prevent the problem that the amount of the coating material affects the coating uniformity, place the raw material of the nano-graphene inside the material box. The material box drives the spring telescopic rods fixed at the front end and the rear end to expand and contract. The coating material enters the inside of the feeding port from the metal through pipe and gradually enters the inside of the rubber half cylinder from the feeding port. The rubber half cylinder deforms, and the part of the rubber half cylinder squeezed by the rubber sleeve is in close contact with one side of the protective frame at this time. At this time, the coating material does not flow from the part where the rubber sleeve squeezes the rubber half cylinder. The first shaft column rotating rod is rotatably connected to the inside of the inner hole support plate. One side of the inner hole support plate is fixedly connected to the front inner side of the material flow component. The lower inner hole support plate is rotatably connected to the second shaft column rotating rod. The rotation of the first shaft column rotating rod drives the transmission roller fixedly connected to the outside to rotate. The rotation of the transmission roller drives the conveyor belt sleeved on the outside to rotate around the two transmission rollers. When the conveyor belt rotates, it drives the limit ear seat fixed on one side to rotate along the rotation track of the conveyor belt. The limit ear seat drives the metal bone column rotatably connected to the inside to move. The metal bone column drives the rubber sleeve to move. When the rubber sleeve moves, the rubber sleeve close to the rubber half cylinder direction continuously moves from top to bottom. When the rubber sleeve moves, the coating material inside the rubber half cylinder will flow along with the movement of the rubber sleeve. When the coating material flows into the inside of the bottom ring, under the extrusion of the rubber sleeve, the coating material flows out between the sector rubber sheets; S2: When realizing uniform coating on the surface of the battery aluminum foil body, the battery aluminum foil body will continue to move in the direction of the first hairspring. A limit rotation hole is opened on the inner side of the lower end of the material flow component. The first fixed spring shaft rotates inside the limit rotation hole at the lower end of the material flow component. Under the torque of the first hairspring, the scraper is driven to rotate through the first fixed spring shaft, and the lower end of the scraper is in close contact with one side of the battery aluminum foil body; S3: When cleaning the impurities on the surface of the pre-coated battery aluminum foil body, the hollow impurity collection shell rotates to drive the nylon strip fixed on the outside to rotate. The nylon strip can stir the impurities on the surface of the battery aluminum foil body. The stirring direction of the nylon strip is forward. One end of the hollow impurity collection shell is rotatably connected to the second hollow shaft cylinder. One side of the second servo motor is fixedly connected to one side of the left end of the folding plate. At the same time, the second servo motor is started, and the second servo motor sucks air inside the second hollow shaft cylinder; S4: When quickly drying the coated battery aluminum foil body, the coated battery aluminum foil body will move to the lower end of the drying component. The aluminum alloy sleeve is heated, and at the same time, the air inside the aluminum alloy sleeve is heated. When the coated battery aluminum foil body passes through the aluminum alloy sleeve, the surface of the battery aluminum foil body is baked through the aluminum alloy sleeve, so that the moisture or solvent on the surface of the battery aluminum foil body quickly evaporates. The first fan conveys the external air through the first hollow shaft cylinder to the inside of the aluminum alloy sleeve and flows out through the hot air outlet; S5: When adjusting the height of the material control component according to the thickness of the battery aluminum foil body, the fixed frame fixedly connected to one side of the connecting block plate moves downward. The fixed frame drives the material control component, the impurity removal component and the drying component fixedly connected to the inside to move downward at the same time. When the fixed frame moves downward, it drives the limit telescopic rod fixedly connected to the top to contract. When the bottom end of the scraper is in close contact with one side of the battery aluminum foil body, at the same time, through the lifting of the fixed frame; S6: When stably conveying the battery aluminum foil body to ensure the stability during coating, when the fixed frame moves downward, it drives the impurity removal component and the drying component to move downward at the same time. When the outer rubber shaft column contacts the upper end of the battery aluminum foil body, at this time, the outer rubber shaft column drives the rotatably connected rotating arm and the second fixed spring shaft to twist. The second fixed spring shaft drives the second hairspring fixed on the outside to store elastic energy. The structure of the pressurizing mechanism is the same as that of the second hairspring, the second fixed spring shaft, the rotating arm and the outer rubber shaft column. One pressurizing mechanism is provided, and the pressurizing mechanism is arranged at the rear end of the battery aluminum foil body. The rear end of the battery aluminum foil body is sleeved and fixed on the outside of the winding roller, and the front end of the battery aluminum foil body is sleeved and fixed.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. In the present invention, through the arranged blanking component and material control component, the device realizes the precise control of the discharge amount and speed of the nano-graphene coating, avoids the phenomenon of uneven coating material feeding, ensures the uniformity of the coating, effectively prevents the coating quality problems caused by uneven coating material feeding, and ensures the quality and performance of the coating on the surface of the battery aluminum foil; 2. In the present invention, through the first clock spring, the scraper, and the material flow component provided, the device ensures the uniform distribution of the coating on the surface of the battery aluminum foil body through the rotation and limiting mechanism from the first clock spring to the scraper, avoids the instability during the coating process, and facilitates the control of the coating force on the battery aluminum foil body; 3. In the present invention, through the fourth servo motor and the second servo motor provided, the device effectively removes the impurities on the surface of the pre-coated battery aluminum foil body, prevents the influence of impurities on the coating quality, and improves the overall coating quality; 4. In the present invention, through the aluminum alloy sleeve and the first blower provided, the rapid drying of the battery aluminum foil body after coating is realized, the drying efficiency is improved, and the uniformity and curing of the coating are ensured at the same time; 5. In the present invention, through the electric telescopic rod, the fixed frame, and the limiting telescopic rod provided, the device can intelligently adjust the height of the material control component according to the thickness of the battery aluminum foil body, ensures the uniformity and consistency of the coating, and further improves the coating quality by leveling the coating with the scraper; 6. In the present invention, through the pressure mechanism, the second clock spring, the second spring fixing shaft, the rotating arm, and the outer rubber shaft column provided, the device ensures the stable transportation of the battery aluminum foil body during the coating process, enhances the stability during coating, makes the battery aluminum foil body remain flat during transportation, and reduces the bending or distortion of the material. Description of the Drawings

[0015] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the structure of the workbench component of the present invention; Figure 3 is a schematic diagram of the structure of the frame component of the present invention; Figure 4 is a schematic diagram of the structure of the blanking component of the present invention; Figure 5 is a schematic diagram of the structure of the fixed frame of the present invention; Figure 6 is a schematic diagram of the structure of the material flow component of the present invention; Figure 7 is a schematic diagram of the structure of the flexible pipe of the present invention; Figure 8 is a schematic diagram of the structure of the scraper of the present invention; Figure 9 is a schematic diagram of the structure of the metal through pipe of the present invention; Figure 10 is a schematic diagram of the structure of the rubber half cylinder of the present invention; Figure 11 is a schematic diagram of the structure of the first servo motor of the present invention; Figure 12 is a schematic diagram of the structure of the rubber sleeve of the present invention; Figure 13 Schematic diagram of the dust storage shell structure of the present invention; Figure 14 Schematic diagram of the outer rubber shaft column structure of the present invention; Figure 15 Schematic diagram of the cleaning drive assembly structure of the present invention; Figure 16 Schematic diagram of the aluminum alloy sleeve structure of the present invention.

[0016] In the figure: 1. Controller; 2. Workbench assembly; 21. Machine table; 22. Conveyor device; 23. Battery aluminum foil body; 24. Stabilizing frame; 3. Frame assembly; 31. Hollow shell; 32. Electric telescopic rod; 33. Connecting block plate; 34. Limit telescopic rod; 35. Built-in connecting plate; 36. Spring telescopic rod; 37. Fixed machine frame; 4. Feeding component; 41. Feed box; 42. Stepper motor; 43. Shaft column connecting rod; 44. Stirring column; 45. Feeding port hole; 46. Vibrator; 5. Material control component; 51. Flow material component; 511. Protection frame shell; 512. Feeding port; 513. Rubber half cylinder; 514. Bottom ring; 515. Sector rubber sheet; 52. Metal through pipe; 53. Soft pipe; 54. Folding fixing plate; 55. Limit retaining piece; 56. First fixed spring shaft; 57. First hairspring; 58. Scraper; 59. Rotary material control mechanism; 591. First servo motor; 592. First shaft column rotating rod; 593. Inner hole support plate; 594. Conveying roller; 595. Conveyor belt; 596. Limit ear seat; 597. Metal bone column; 598. Rubber sleeve; 599. Second shaft column rotating rod; 6. Impurity removal component; 61. Dust storage shell; 62. Inverted folding plate; 63. Second hairspring; 64. Second fixed spring shaft; 65. Rotating arm; 66. Outer rubber shaft column; 67. Filter plate; 68. Cleaning drive assembly; 681. Fourth servo motor; 682. Hollow impurity collection shell; 683. Nylon strip; 684. Impurity through port; 685. Second hollow shaft cylinder; 686. Second servo motor; 69. Impurity through pipe; 7. Drying component; 71. Stable metal frame; 72. Pressing mechanism; 73. Third servo motor; 74. Aluminum alloy sleeve; 75. Hot air outlet; 76. Heating wire; 77. First hollow shaft cylinder; 78. First fan. Detailed implementation manners

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0018] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0019] Please refer to Figure 1-16 , the present invention provides a technical solution: An integrally coated battery aluminum foil with surface coating and its usage method, including a controller 1 and a workbench assembly 2. One side of the controller 1 is fixedly connected to the workbench assembly 2. The upper end of the workbench assembly 2 is fixedly connected to a frame assembly 3. Inside the frame assembly 3, a blanking assembly 4 is fixedly connected. Inside the frame assembly 3, a material control assembly 5 is fixedly connected. Inside the frame assembly 3, a impurity removal assembly 6 is fixedly connected. Inside the frame assembly 3, a drying assembly 7 is fixedly connected. The material control assembly 5 includes a material flow assembly 51. The material flow assembly 51 includes a protective frame housing 511. Inside the upper end of the protective frame housing 511, a material inlet 512 is opened. One side of the material inlet 512 is fixedly connected to a rubber half cylinder 513. The bottom end of the protective frame housing 511 is fixedly connected to a bottom ring 514. Inside the bottom ring 514, a sector-shaped rubber sheet 515 is fixedly connected. The top end of the material flow assembly 51 is fixedly connected to a metal through pipe 52. The top end of the metal through pipe 52 is fixedly connected to a flexible pipe 53. The rear end of the material flow assembly 51 is fixedly connected to a folding fixing plate 54. One side of the lower end of the material flow assembly 51 is fixedly connected to a limiting baffle 55. Inside the lower end of the material flow assembly 51, a first spring fixing shaft 56 is rotatably connected through a bearing. Outside the first spring fixing shaft 56, a first hairspring 57 is fixedly connected. One side of the first hairspring 57 is fixedly connected to a scraping plate 58. Inside the material flow assembly 51, a rotating material control mechanism 59 is installed. The rotating material control mechanism 59 includes a first servo motor 591. The end of the main shaft of the first servo motor 591 is fixedly connected to a first shaft column rotating rod 592. Outside the first shaft column rotating rod 592, an inner hole support plate 593 is rotatably connected. Outside the first shaft column rotating rod 592, a conveying rotating roller 594 is fixedly connected. Outside the conveying rotating roller 594, a conveyor belt 595 is sleeved. One side of the conveyor belt 595 is fixedly connected to a limiting ear seat 596. Inside the limiting ear seat 596, a metal bone column 597 is rotatably connected. Outside the metal bone column 597, a rubber sleeve 598 is fixedly connected. Inside the material flow assembly 51, a second shaft column rotating rod 599 is rotatably connected.

[0020] As a further implementation of this solution, the impurity removal component 6 includes a dust storage shell 61. A folded plate 62 is fixedly connected to the bottom end of the dust storage shell 61. A second clock spring 63 is rotatably connected to the inner side of the folded plate 62. A second fixed spring shaft 64 is fixedly connected to the outer side of the second clock spring 63. A rotating arm 65 is fixedly connected to one side of the second fixed spring shaft 64. An outer rubber shaft column 66 is rotatably connected to the inner side of the rotating arm 65. A filter plate 67 is fixedly connected to the inner side of the upper end of the dust storage shell 61. A cleaning drive component 68 is installed on the inner side of the lower end of the folded plate 62. A miscellaneous passage pipe 69 is fixedly connected to one side of the dust storage shell 61. The cleaning drive component 68 includes a fourth servo motor 681. A hollow impurity collection shell 682 is fixedly connected to the end of the main shaft of the fourth servo motor 681. A nylon strip 683 is fixedly connected to the outer side of the hollow impurity collection shell 682. An impurity passage opening 684 is formed in the inner side of the hollow impurity collection shell 682. The left end of the hollow impurity collection shell 682 is rotatably connected to a second hollow shaft cylinder 685 through a bearing. A second servo motor 686 is fixedly connected to one side of the second hollow shaft cylinder 685. It realizes the effective removal of impurities on the surface of the battery aluminum foil body 23, prevents the influence of impurities on the coating quality, and improves the overall quality of the coating; As a further implementation of this solution, the drying component 7 includes a stable metal frame 71. A pressurizing mechanism 72 is installed inside the stable metal frame 71. A third servo motor 73 is fixedly connected to one side of the stable metal frame 71. A main shaft end of the third servo motor 73 is fixedly connected to an aluminum alloy sleeve 74. A hot air outlet 75 is formed in the inner side of the aluminum alloy sleeve 74. A heating wire 76 is fixedly connected to the inner side of the aluminum alloy sleeve 74. The left end of the aluminum alloy sleeve 74 is rotatably connected to a first hollow shaft cylinder 77 through a bearing. A first blower 78 is fixedly connected to one side of the first hollow shaft cylinder 77. It realizes the rapid drying of the battery aluminum foil body 23 after coating, improves the drying efficiency, and at the same time ensures the uniformity and curing of the coating, and speeds up the production process; As a further implementation of this solution, the workbench component 2 includes a machine table 21. A conveying device 22 is installed inside the upper end of the machine table 21. A battery aluminum foil body 23 is installed on the upper end of the machine table 21. A stable frame 24 is fixedly connected to the top end of the machine table 21. At the same time, it facilitates the close contact between the battery aluminum foil body 23 and the conveying device 22, and plays an effect of supporting the frame component 3; As a further implementation of this solution, the frame component 3 includes a hollow shell 31. An electric telescopic rod 32 is fixedly connected to one side of the hollow shell 31. A connecting block plate 33 is fixedly connected to the bottom end of the electric telescopic rod 32. A limiting telescopic rod 34 is fixedly connected to the inner side of the hollow shell 31. An internal connecting plate 35 is fixedly connected to the inner side of the hollow shell 31. A spring telescopic rod 36 is fixedly connected to one side of the internal connecting plate 35. A fixed machine frame 37 is fixedly connected to the bottom end of the limiting telescopic rod 34. By controlling the lifting of the fixed machine frame 37, the force for grinding the paint on the battery aluminum foil body 23 by the scraping plate 58 is controlled, ensuring the consistency of the coating thickness; As a further implementation of this solution, the blanking component 4 includes a material box 41. One side of the material box 41 is fixedly connected with a stepping motor 42. The end of the main shaft of the stepping motor 42 is fixedly connected with a shaft column connecting rod 43. The outer side of the shaft column connecting rod 43 is fixedly connected with a stirring column 44. An opening hole 45 for blanking is arranged inside the bottom end of the material box 41. A vibrator 46 is fixedly connected to the front end of the material box 41, ensuring the continuity of the coating flow path and improving the coating conveying efficiency; As a further implementation of this solution, the inner side of the upper end of the machine table 21 is hollow. A bracket is installed at the top end of the machine table 21. A roller is rotatably connected to the bracket at the upper end of the machine table 21. The bottom end of the battery aluminum foil body 23 is attached to the top end of the conveying device 22. One side of the stabilizing frame 24 is fixedly connected to the outer side of the hollow shell 31, effectively preventing friction between the conveying device 22 and the battery aluminum foil body 23 and protecting the surface quality of the battery aluminum foil body 23; As a further implementation of this solution, the inner side of the hollow shell 31 is hollow. One side of the spring telescopic rod 36 is fixedly connected to the outer side of the material box 41. The bottom end of the connecting block plate 33 is fixedly connected to the right side of the fixed machine frame 37. The inner side of the fixed machine frame 37 is fixedly connected to the outer side of the material flow component 51 through a bracket. The inner side of the fixed machine frame 37 is fixedly connected to the outer side of the dust storage shell 61 through a bracket. The inner side of the fixed machine frame 37 is fixedly connected to the outer side of the stable metal frame 71 through a bracket, playing a role in supporting the material control component 5, the impurity removal component 6, and the drying component 7; As a further implementation of this solution, the top end of the flexible pipe 53 is fixedly connected to the material box 41 near the lower end of the blanking opening hole 45. The number of the blanking opening holes 45 corresponds to the number of the flexible pipes 53 one by one. The inner side of the material box 41 is hollow. The inside of the material box 41, the blanking opening hole 45, the inside of the flexible pipe 53, the inside of the metal through pipe 52, and the feeding port 512 are communicated. The feeding port 512 is communicated with the inside of the rubber semi-cylinder 513. The shape of the sector-shaped rubber sheet 515 is a sector body. The sector-shaped rubber sheets 515 are attached to each other. One side of the first servo motor 591 is fixedly connected to one side of the material flow component 51. The outer side of the rubber sleeve 598 is attached to the outer side of the rubber semi-cylinder 513, ensuring the uniform distribution of the coating on the surface of the battery aluminum foil body 23. At the same time, the limiting effect of the first fixed spring shaft 56 ensures the stability during the coating process and improves the uniformity and quality of the coating.

[0021] Workflow: When coating the surface of battery aluminum foil and precisely controlling the quantity and speed of the nano-graphene coating material to prevent the problem that the quantity of the coating material affects the uniformity of the coating, place the raw material of nano-graphene inside the material box 41. Start the stepper motor 42 to drive the shaft column connecting rod 43 to rotate. The shaft column connecting rod 43 drives the stirring column 44 fixedly connected to the outside to rotate. The stirring column 44 can mix the raw materials inside the material box 41. Start the vibrator 46 to generate vibration, thereby driving the material box 41 to rotate. The material box 41 drives the spring telescopic rods 36 fixed at the front end and the rear end to expand and contract, which can accelerate the flow efficiency of the raw materials inside the material box 41 from the blanking port hole 45 into the soft pipeline 53 and the metal through pipe 52. The coating material enters the feeding port 512 from the metal through pipe 52 and gradually enters the inside of the rubber half-cylinder 513. At this time, under the extrusion of the rubber sleeve 598, the rubber half-cylinder 513 deforms, and the inner side of the rubber half-cylinder 513 at the part extruded by the rubber sleeve 598 is in close contact with one side of the protective frame 511. At this time, the coating material does not flow from the part where the rubber sleeve 598 extrudes the rubber half-cylinder 513. Start the first servo motor 591 to drive the first shaft column rotating rod 592 to rotate. The first shaft column rotating rod 592 is rotatably connected to the inside of the inner hole support plate 593, which can improve the stability of the first shaft column rotating rod 592 when rotating. One side of the inner hole support plate 593 is fixedly connected to the front inner side of the material flow component 51. The inner hole support plate 593 plays a role in supporting the first shaft column rotating rod 592. At the same time, the lower inner hole support plate 593 plays a role in supporting the second shaft column rotating rod 599. The lower inner hole support plate 593 is rotatably connected to the second shaft column rotating rod 599. The rotation of the first shaft column rotating rod 592 drives the conveyor roller 594 fixedly connected to the outside to rotate. The rotation of the conveyor roller 594 drives the conveyor belt 595 sleeved on the outside to rotate around the two conveyor rollers 594. When the conveyor belt 595 rotates, it drives the limit ear seat 596 fixed on one side to rotate along the rotation track of the conveyor belt 595. The limit ear seat 596 drives the metal bone column 597 rotatably connected to the inside to move. The metal bone column 597 drives the rubber sleeve 598 to move. When the rubber sleeve 598 moves, the rubber sleeve 598 in the direction close to the rubber half-cylinder 513 continuously moves from top to bottom. When the rubber sleeve 598 moves, the coating material inside the rubber half-cylinder 513 will flow along with the movement of the rubber sleeve 598. When the coating material flows into the inside of the bottom ring 514, under the extrusion of the rubber sleeve 598, the pressure inside the bottom ring 514 expands at this time, and gaps appear between the fan-shaped rubber sheets 515. The coating material flows out from between the fan-shaped rubber sheets 515 and thus drops onto the battery aluminum foil body 23, realizing the work of precisely controlling the quantity and flow rate of the coating material and avoiding the phenomenon of uneven coating material feeding; When realizing uniform coating on the surface of the battery aluminum foil body 23, by the same principle as above, after the coating material drops onto the battery aluminum foil body 23, the battery aluminum foil body 23 will continue to move in the direction of the first winding spring 57. Under the action of the torsion force of the first winding spring 57, it drives the first winding spring 57 to keep rotating inside the lower end of the material flow component 51. A limiting rotation hole is opened inside the lower end of the material flow component 51. The first fixed spring shaft 56 rotates inside the limiting rotation hole at the lower end of the material flow component 51, playing a role in limiting the rotation direction of the first fixed spring shaft 56. The limiting retaining piece 55 plays an effect of blocking the scraping plate 58 to prevent the scraping plate 58 from rotating too large an angle. Under the action of the torsion force of the first winding spring 57, the scraping plate 58 is driven to keep rotating through the first fixed spring shaft 56. The lower end of the scraping plate 58 is in close contact with one side of the battery aluminum foil body 23. Under the torsion force of the first winding spring 57, the scraping plate 58 and the battery aluminum foil body 23 can be kept in close contact, and the work of coating the surface of the nano-graphene coating material is realized through the scraping plate 58; When realizing the work of removing impurities on the surface of the pre-coated battery aluminum foil body 23, start the fourth servo motor 681 to drive the hollow impurity collection shell 682 to rotate. The rotation of the hollow impurity collection shell 682 drives the nylon strip 683 fixed on the outside to rotate. The nylon strip 683 can stir the impurities on the surface of the battery aluminum foil body 23. The stirring direction of the nylon strip 683 is forward to prevent the impurities from directly falling below the material control component 5. One end of the hollow impurity collection shell 682 is rotatably connected to the second hollow shaft cylinder 685. One side of the second servo motor 686 is fixedly connected to one side of the left end of the inverted folding plate 62, which can improve the stability when the hollow impurity collection shell 682 rotates. At the same time, start the second servo motor 686. The second servo motor 686 sucks air inside the second hollow shaft cylinder 685. External impurities will enter the inside of the impurity through-hole 684 along with the wind, enter the inside of the hollow impurity collection shell 682 and the second hollow shaft cylinder 685 from the impurity through-hole 684, and are discharged to the outside along with the second servo motor 686, preventing the surface of the pre-coated battery aluminum foil body 23 from being contaminated with impurities and affecting the coating quality; When quickly drying the coated battery aluminum foil body 23, the coated battery aluminum foil body 23 will move to the lower end of the drying assembly 7. Before this, the heating wire 76 is started. The heating wire 76 heats the aluminum alloy sleeve 74 and at the same time heats the air inside the aluminum alloy sleeve 74. When the coated battery aluminum foil body 23 passes through the aluminum alloy sleeve 74, the aluminum alloy sleeve 74 bakes the surface of the battery aluminum foil body 23, causing the moisture or solvent on the surface of the battery aluminum foil body 23 to evaporate quickly. At the same time, the first blower 78 and the third servo motor 73 are started. The third servo motor 73 drives the aluminum alloy sleeve 74 to rotate. The aluminum alloy sleeve 74 is rotatably connected to the outside of the first hollow shaft cylinder 77 to improve the stability of the aluminum alloy sleeve 74 when rotating. When the first blower 78 is started, the first blower 78 conveys the external air through the first hollow shaft cylinder 77 into the interior of the aluminum alloy sleeve 74 and flows out through the hot air outlet 75. The air flowing out of the hot air outlet 75 is slow, and the heat inside the aluminum alloy sleeve 74 can be slowly blown towards the surface of the battery aluminum foil body 23 to further improve the drying efficiency of the battery aluminum foil body 23. The rotation of the aluminum alloy sleeve 74 can improve the uniformity of blowing air on the battery aluminum foil body 23; When adjusting the height of the material control component 5 according to the thickness of the battery aluminum foil body 23, the electric telescopic rod 32 is started to drive the connecting block plate 33 to move downward. The fixed frame 37 fixedly connected to one side of the connecting block plate 33 moves downward. The fixed frame 37 drives the material control component 5, the impurity removal component 6 and the drying component 7 fixedly connected to the inside to move downward at the same time. When the fixed frame 37 moves downward, it drives the limit telescopic rod 34 fixedly connected to the top to contract. The limit telescopic rod 34 can improve the stability of the fixed frame 37 when moving. When the bottom end of the scraper 58 is in close contact with one side of the battery aluminum foil body 23, the effect of coating height adjustment is completed. At the same time, through the lifting of the fixed frame 37, the force of the scraper 58 to level the paint on the battery aluminum foil body 23 can be controlled; To achieve stable conveyance of the battery aluminum foil body 23 and ensure stability during coating, following the above principle, when the fixed frame 37 moves downward, it drives the impurity removal component 6 and the drying component 7 to move downward simultaneously. When the outer rubber shaft column 66 contacts the upper end of the battery aluminum foil body 23, at this time, the outer rubber shaft column 66 drives the rotationally connected swing arm 65 and the second fixed spring shaft 64 to twist. The second fixed spring shaft 64 drives the second clockwork spring 63 fixed on the outside to store elastic energy. Under the action of the elastic torque of the second clockwork spring 63, the fit between the outer rubber shaft column 66 and the battery aluminum foil body 23 can be improved. The outer rubber shaft column 66 is made of rubber material, and two outer rubber shaft columns 66 are provided. At the same time, with the cooperation of the pressing mechanism 72, the lower end of the battery aluminum foil body 23 can be closely attached to the top of the conveying device 22. The structure of the pressing mechanism 72 is the same as that of the second clockwork spring 63, the second fixed spring shaft 64, the swing arm 65, and the outer rubber shaft column 66. One pressing mechanism 72 is provided, and the pressing mechanism 72 is arranged at the rear end of the battery aluminum foil body 23. The rear end of the battery aluminum foil body 23 is sleeved and fixed on the outside of the winding roller. The front end of the battery aluminum foil body 23 is sleeved and fixed on the outside of the unwinding roller. By starting the conveying device 22, friction between the conveying device 22 and the battery aluminum foil body 23 can be prevented. By starting the motor of the rear winding roller, the function of winding the battery aluminum foil body 23 can be achieved.

[0022] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A battery aluminum foil integrated coating machine for surface coating, comprising a controller (1) and a workbench assembly (2), characterized in that: A workbench assembly (2) is fixedly connected to one side of the controller (1); a frame assembly (3) is fixedly connected to the upper end of the workbench assembly (2); a material discharge assembly (4) is fixedly connected to the inner side of the frame assembly (3); a material control assembly (5) is fixedly connected to the inner side of the frame assembly (3); a de-impurity assembly (6) is fixedly connected to the inner side of the frame assembly (3); and a drying assembly (7) is fixedly connected to the inner side of the frame assembly (3); The material control component (5) comprises a material flow component (51), the material flow component (51) comprises a protective frame shell (511), an inlet (512) is provided on the inner side of the upper end of the protective frame shell (511), a rubber half-tube (513) is fixedly connected to one side of the inlet (512), a bottom ring (514) is fixedly connected to the bottom end of the protective frame shell (511), a fan-shaped rubber sheet (515) is fixedly connected to the inner side of the bottom ring (514), a metal through-tube (52) is fixedly connected to the top end of the material flow component (51), a soft pipe (53) is fixedly connected to the top end of the metal through-tube (52), a folding plate (54) is fixedly connected to the rear end of the material flow component (51), a limited stopper (55) is fixedly connected to one side of the lower end of the material flow component (51), a first fixed spring shaft (56) is rotatably connected to the inner side of the lower end of the material flow component (51) via a bearing, and a first spring shaft (56) is fixedly connected to the outer side of the first fixed spring shaft (56). (57), a scraper (58) is fixedly connected to one side of the first spring spring (57), a rotating material control mechanism (59) is installed inside the flow assembly (51), the rotating material control mechanism (59) comprises a first servo motor (591), a first shaft column rotating rod (592) is fixedly connected to the end of the main shaft of the first servo motor (591), an inner hole support plate (593) is rotatably connected to the outer side of the first shaft column rotating rod (592), a transmission roller (594) is fixedly connected to the outer side of the first shaft column rotating rod (592), a conveying belt (595) is sleeved on the outer side of the conveying roller (594), one side of the conveying belt (595) is fixedly connected to a limiting ear seat (596), a metal bone column (597) is rotatably connected to the inner side of the limiting ear seat (596), a rubber sleeve (598) is fixedly connected to the outer side of the metal bone column (597), and a second shaft column rotating rod (599) is rotatably connected to the inner side of the flow assembly (51).

2. The surface-coated battery aluminum foil integrated coating machine according to claim 1, characterized in that: The impurity removal component (6) comprises a dust storage shell (61), the bottom end of the dust storage shell (61) is fixedly connected to an inverted folding plate (62), the inner side of the inverted folding plate (62) is rotatably connected to a second spring spring (63), the outer side of the second spring spring (63) is fixedly connected to a second spring fixed shaft (64), one side of the second spring fixed shaft (64) is fixedly connected to a rotating arm (65), the inner side of the rotating arm (65) is rotatably connected to an outer rubber shaft column (66), the inner side of the upper end of the dust storage shell (61) is fixedly connected to a filter plate (67), the inner side of the lower end of the inverted folding plate (62) is installed with a cleaning drive component (68), and the dust storage shell (61) is fixedly connected to an inner side of a filter plate (67), and the inner side of the lower end of the inverted folding plate (62) is installed with a cleaning drive component (68). A debris pipe (69) is fixedly connected to one side of the dust storage shell (61); the cleaning drive assembly (68) comprises a fourth servo motor (681); a hollow debris collection shell (682) is fixedly connected to the end of the main shaft of the fourth servo motor (681); a nylon strip (683) is fixedly connected to the outside of the hollow debris collection shell (682); a debris passage opening (684) is provided on the inside of the hollow debris collection shell (682); a second hollow shaft cylinder (685) is rotatably connected to the left end of the hollow debris collection shell (682) via a bearing; and a second servo motor (686) is fixedly connected to one side of the second hollow shaft cylinder (685).

3. The surface-coated battery aluminum foil integrated coating machine according to claim 1, characterized in that: The drying assembly (7) comprises a stable metal frame (71), a pressurizing mechanism (72) is installed inside the stable metal frame (71), a third servo motor (73) is fixedly connected to one side of the stable metal frame (71), an aluminum alloy sleeve (74) is fixedly connected to the end of the main shaft of the third servo motor (73), a hot air outlet (75) is provided inside the aluminum alloy sleeve (74), a heating wire (76) is fixedly connected to the inside of the aluminum alloy sleeve (74), a first hollow shaft cylinder (77) is rotatably connected to the left end of the aluminum alloy sleeve (74) via a bearing, and a first fan (78) is fixedly connected to one side of the first hollow shaft cylinder (77).

4. The surface-coated battery aluminum foil integrated coating machine according to claim 1, characterized in that: The workbench assembly (2) comprises a machine platform (21), a conveying device (22) is installed on the inner side of the upper end of the machine platform (21), a battery aluminum foil body (23) is installed on the upper end of the machine platform (21), and a stabilizing frame (24) is fixedly connected to the top end of the machine platform (21).

5. The surface-coated battery aluminum foil integrated coating machine according to claim 1, characterized in that: The frame assembly (3) comprises a hollow shell (31), one side of the hollow shell (31) is fixedly connected to an electric telescopic rod (32), the bottom end of the electric telescopic rod (32) is fixedly connected to a connecting block plate (33), the inner side of the hollow shell (31) is fixedly connected to a limited telescopic rod (34), the inner side of the hollow shell (31) is fixedly connected to an internal connecting plate (35), one side of the internal connecting plate (35) is fixedly connected to a spring telescopic rod (36), and the bottom end of the limited telescopic rod (34) is fixedly connected to a fixed frame (37).

6. The surface-coated battery aluminum foil integrated coating machine according to claim 1, characterized in that: The material unloading component (4) comprises a material box (41), one side of the material box (41) is fixedly connected to a stepper motor (42), the end of the main shaft of the stepper motor (42) is fixedly connected to a shaft column connecting rod (43), the outer side of the shaft column connecting rod (43) is fixedly connected to a stirring column (44), the inner side of the bottom end of the material box (41) is provided with a material unloading hole (45), and the front end of the material box (41) is fixedly connected to a vibrator (46).

7. The integrated coating machine for surface-coated battery aluminum foil according to any one of claims 4 and 5, characterized in that: The inner side of the upper end of the machine platform (21) is hollow, a bracket is installed at the top end of the machine platform (21), the bracket at the upper end of the machine platform (21) is rotatably connected to a roller, the bottom end of the battery aluminum foil body (23) is in contact with the top end of the conveying device (22), and one side of the stabilizing frame (24) is fixedly connected to the outer side of the hollow shell (31).

8. A battery aluminum foil integrated coating machine for surface coating according to any one of claims 1, 2, 3, and 5, characterized in that: The inner side of the hollow shell (31) is hollow, one side of the spring telescopic rod (36) is fixedly connected to the outer side of the material box (41), the bottom end of the connecting block plate (33) is fixedly connected to the right side of the fixed frame (37), the inner side of the fixed frame (37) is fixedly connected to the outer side of the material flow assembly (51) via a bracket, the inner side of the fixed frame (37) is fixedly connected to the outer side of the dust storage shell (61) via a bracket, and the inner side of the fixed frame (37) is fixedly connected to the outer side of the stable metal frame (71) via a bracket.

9. The battery aluminum foil integrated coating machine for surface coating according to any one of claims 1 and 6, characterized in that: The top end of the soft pipe (53) is fixedly connected to the material box (41) near the lower end of the feed opening hole (45), the number of the feed opening holes (45) corresponds to the number of the soft pipes (53), the inner side of the material box (41) is hollow, the inner side of the material box (41), the feed opening hole (45), the inner side of the soft pipe (53), the inner side of the metal through pipe (52) and the feed inlet (512) are connected, the feed inlet (512) is connected to the inner side of the rubber half cylinder (513), the fan-shaped rubber sheet (515) is in the shape of a fan-shaped body, the fan-shaped rubber sheets (515) are fitted together, one side of the first servo motor (591) is fixedly connected to one side of the material flow assembly (51), and the outer side of the rubber sleeve (598) is fitted to the outer side of the rubber half cylinder (513).

10. The method for using the surface-coated battery aluminum foil integrated coating machine according to any one of claims 1 to 9, characterized in that: S1: When coating the surface of battery aluminum foil, the amount and speed of the nanographene coating are precisely controlled to prevent the amount of coating from affecting the uniformity of the coating. The nanographene raw material is placed inside the material box (41). The material box (41) drives the spring telescopic rods (36) fixed at the front and rear ends to expand and contract. The coating enters the inside of the feed port (512) from the metal through tube (52), and gradually enters the inside of the rubber half cylinder (513) from the feed port (512). The rubber half cylinder (513) is shaped. The inner side of the rubber half cylinder (513) at the part squeezed by the rubber sleeve (598) is in close contact with one side of the protective frame shell (511). At this time, the paint flows from the part squeezed by the rubber sleeve (598) to the rubber half cylinder (513). The first shaft column rotating rod (592) is rotatably connected to the inner side of the inner hole support plate (593). One side of the inner hole support plate (593) is fixedly connected to the inner side of the front end of the flow material component (51). The inner hole support plate (593) at the lower end is connected to the second shaft column rotating rod (599). The first shaft column rotating rod (592) rotates to drive the transmission roller (594) fixedly connected on the outside to rotate. The transmission roller (594) rotates to drive the transmission belt (595) sleeved on the outside to rotate around the two transmission rollers (594). When the transmission belt (595) rotates, it drives the fixed limit ear seat (596) on one side to rotate along the rotation trajectory of the transmission belt (595). The limit ear seat (596) drives the metal bone column (597) connected on the inside to move. The metal bone column (597) 597) drives the rubber sleeve (598) to move. When the rubber sleeve (598) moves, the rubber sleeve (598) close to the rubber half-cylinder (513) continuously moves from top to bottom. When the rubber sleeve (598) moves, the paint inside the rubber half-cylinder (513) moves along with the movement of the rubber sleeve (598). When the paint flows to the inside of the bottom ring (514), the paint flows out from between the fan-shaped rubber sheets (515) under the squeezing action of the rubber sleeve (598); S2: When the surface of the battery aluminum foil body (23) is uniformly coated, the battery aluminum foil body (23) continues to move in the direction of the first spring (57), a limited rotation hole is provided on the inner side of the lower end of the flow assembly (51), and the first fixed spring shaft (56) rotates on the inner side of the limited rotation hole at the lower end of the flow assembly (51). Under the action of the torsion force of the first spring (57), the scraper (58) is driven by the first fixed spring shaft (56) to keep rotating, and the lower end of the scraper (58) is in close contact with one side of the battery aluminum foil body (23); S3: When the impurities on the surface of the pre-coated battery aluminum foil body (23) are removed, the hollow impurity collecting shell (682) rotates to drive the nylon strip (683) fixed on the outside to rotate, and the nylon strip (683) can move the impurities on the surface of the battery aluminum foil body (23). The moving direction of the nylon strip (683) is forward. One end of the hollow impurity collecting shell (682) is rotatably connected to the second hollow shaft cylinder (685), and one side of the second servo motor (686) is fixedly connected to one side of the left end of the inverted folding plate (62). At the same time, the second servo motor (686) is started, and the second servo motor (686) draws air from the inside of the second hollow shaft cylinder (685); S4: When the coated battery aluminum foil body (23) is quickly dried, the coated battery aluminum foil body (23) moves to the lower end of the drying assembly (7) to heat the aluminum alloy sleeve (74) and heat the air inside the aluminum alloy sleeve (74). After the coated battery aluminum foil body (23) passes through the aluminum alloy sleeve (74), the surface of the battery aluminum foil body (23) is baked by the aluminum alloy sleeve (74) to quickly evaporate the moisture or solvent on the surface of the battery aluminum foil body (23). The first fan (78) transports the external air to the inside of the aluminum alloy sleeve (74) through the first hollow shaft (77) and flows out through the hot air outlet (75); S5: When the height of the material control component (5) is adjusted according to the thickness of the battery aluminum foil body (23), the fixed frame (37) fixedly connected to the side of the connecting plate (33) moves downward, and the fixed frame (37) drives the material control component (5), the impurity removal component (6) and the drying component (7) fixedly connected to the inner side to move downward at the same time. When the fixed frame (37) moves downward, the limit telescopic rod (34) fixedly connected to the top is driven to shrink. When the bottom end of the scraper (58) is in close contact with one side of the battery aluminum foil body (23), the fixed frame (37) is raised and lowered at the same time. S6: To achieve stable conveying of the battery aluminum foil body (23) and ensure stability during coating, when the fixing frame (37) moves downward, the impurity removal component (6) and the drying component (7) are driven to move downward at the same time. When the outer rubber shaft column (66) contacts the upper end of the battery aluminum foil body (23), the outer rubber shaft column (66) drives the rotatably connected rotating arm (65) and the second fixed spring shaft (64) to twist, and the second fixed spring shaft (64) drives the second spring spring (63) fixed on the outside to elastically store force. The structure of the pressure mechanism (72) is the same as that of the second spring spring (63), the second fixed spring shaft (64), the rotating arm (65) and the outer rubber shaft column (66). One pressure mechanism (72) is provided. The pressure mechanism (72) is provided at the rear end of the battery aluminum foil body (23). The rear end of the battery aluminum foil body (23) is sleeved and fixed on the outer side of the winding roller, and the front end of the battery aluminum foil body (23) is sleeved and fixed.

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