Electrolyte corrosion resistant electrode aluminum foil formation processing device

Abstract

The application discloses an electrolyte corrosion-resistant electrode aluminum foil formation treatment device, and belongs to the technical field of aluminum foil formation. The device comprises a bottom plate, a formation tank arranged on the top of the bottom plate, a pay-off rack arranged on one side of the bottom plate, an upper guide roller, a first side roller and a second side roller arranged along an aluminum foil conveying path in sequence, and a horizontal plate fixed horizontally between the side of the pay-off rack and the formation tank. A U-shaped mounting seat for limiting and guiding the aluminum foil is slidably arranged on the top of the horizontal plate along the length direction of the horizontal plate. The U-shaped mounting seat is slidably arranged on the top of the horizontal plate along the length direction, and the aluminum foil can stably slide in the U-shaped mounting seat during conveying, thereby forming effective limiting and avoiding the offset of the aluminum foil from affecting the formation treatment. During the aluminum foil connecting stage, the device does not need to be stopped, and only needs to cover the new foil on the top of the old foil, and cooperates with a positioning roller pressing mechanism to complete the connection. Meanwhile, the aluminum foil can drive the U-shaped mounting seat to move synchronously with the conveying, thereby completely eliminating the efficiency loss of the traditional stoppage and connection of the aluminum foil.

Description

Technical Field

[0001] This invention relates to an aluminum foil formation processing apparatus, and more particularly to an electrode aluminum foil formation processing apparatus resistant to electrolyte corrosion, belonging to the field of aluminum foil formation technology. Background Technology

[0002] As a core current collector substrate for electronic devices such as lithium batteries and supercapacitors, the continuity and stability of the surface formation treatment of anti-electrolyte corrosion electrode aluminum foil directly determine the key performance characteristics of the devices, such as corrosion resistance and cycle life. To meet the needs of large-scale production, anti-electrolyte corrosion electrode aluminum foil formation treatment equipment generally adopts a continuous production mode. Through the coordinated operation of the unwinding frame, formation tank, and winding unit, continuous electrochemical oxidation treatment of aluminum foil is achieved to generate a dense and stable Al2O3 anti-corrosion film. During the continuous production process, when the aluminum foil rollers on the unwinding frame are about to run out, a foil splicing operation is required to connect the end of the old aluminum foil with the beginning of the new aluminum foil to maintain production continuity.

[0003] Currently, the mainstream foil splicing methods in the industry are mainly divided into two categories: manual foil splicing during shutdown and automatic foil splicing by roller pressing. When performing manual foil splicing, the entire operation of the formation process unit must be suspended. Operators complete the overlapping and fixing of new and old aluminum foils by cutting, aligning, bonding or welding. This method not only reduces production efficiency, but also causes fluctuations in the temperature and concentration of the electrolyte in the formation tank, which in turn affects the uniformity of the thickness and the consistency of corrosion resistance of the subsequent aluminum foil formation film.

[0004] However, the automatic foil splicing operation lacks an automatic end cutting function. After the foil splicing is completed, it cannot automatically and accurately cut off the excess foil at the end according to the actual foil splicing position. This can easily lead to redundant structures at the interface, affecting the flatness of the subsequent aluminum foil operation. In addition, during the roll forming process, only a single roll forming operation can be achieved. The roll forming pressure and contact time are difficult to accurately match the electrode aluminum foil of different thicknesses, reducing the stability of the connection. Furthermore, the foil splicing length depends on manual preset control, which can easily lead to overpressure problems caused by excessive overlap length, thereby affecting the surface condition of the aluminum foil and the formation treatment effect.

[0005] To address this issue, an anti-electrolyte corrosion electrode aluminum foil formation treatment device was designed. Summary of the Invention

[0006] The main objective of this invention is to provide an anti-electrolyte corrosion electrode aluminum foil formation treatment device. By sliding a U-shaped mounting base along the length of the top of the horizontal plate, the aluminum foil can slide stably inside during transport, forming an effective limit and preventing foil misalignment from affecting the formation process. No machine stoppage is required during the foil splicing stage; simply cover the top of the old foil with the new foil, and the connection is completed with the positioning roller pressing mechanism. Simultaneously, the aluminum foil drives the U-shaped mounting base to move synchronously with the transport, completely eliminating the efficiency loss associated with traditional stoppage foil splicing. Furthermore, after foil splicing, the aluminum foil passes under the new foil cutter. A gap equal to the thickness of the aluminum foil exists between the new foil cutter and the individual aluminum foil pieces, allowing the unspliced ​​new foil to be lifted upwards and its ends to be cut off at the connection point as it moves. As the new and old foils continue to move, a pneumatic nozzle blows air upwards to adhere the unconnected ends of the old foil to the old foil cutter. As the aluminum foil continues to move, the old foil cutter slides against the aluminum foil surface, cutting off the ends of the old foil at the connection point, improving efficiency. To ensure the functionality of the device and guarantee the smooth conveying of aluminum foil, a positioning and rolling mechanism consisting of a U-shaped frame at the top of the U-shaped mounting base, a cylinder, a U-shaped plate, a groove, a positioning plate, a second spring, a strip channel, a slider, a third spring, a second sliding rod, and rollers is used. The cylinder controls the downward movement of the U-shaped plate, first positioning the new and old aluminum foil together with the U-shaped mounting base via the positioning plate. As the U-shaped plate continues to move downward, the rollers are then controlled to adhere to the aluminum foil surface, and guided by the strip channel, the foil is conveyed along the aluminum... The rolling mechanism moves along the length of the foil to join the old and new aluminum foils. Simultaneously, during cylinder reset, the rollers, under the reset action of spring three, can also return to their original position along the strip groove, passing over the aluminum foil surface again for secondary rolling, improving the joining effect. Furthermore, the fixed length of the strip groove allows for controllable roller travel, effectively preventing surface damage caused by excessive rolling and preserving the original surface condition of the aluminum foil. A reset mechanism composed of a guide rail, a fixed block, spring one, and a sliding rod compresses spring one as the U-shaped mounting base moves with the aluminum foil, creating elastic energy storage. After joining, no manual adjustment is required; the reset action of spring one quickly prepares the U-shaped mounting base for the next joining operation, reducing operator workload, ensuring timely and continuous joining operations, and improving the overall ease of use of the device.

[0007] The objective of this invention can be achieved by adopting the following technical solution: An anti-electrolyte corrosion electrode aluminum foil formation treatment device includes a base plate, a formation tank disposed on the top of the base plate, an unwinding frame installed on one side of the base plate, and an upper guide roller, a first side roller, and a second side roller arranged sequentially along the aluminum foil conveying path. A horizontal plate is fixed between the side of the unwinding frame and the forming tank. A U-shaped mounting seat for limiting and guiding the aluminum foil is slidably provided on the top of the horizontal plate along its own length. The top of the U-shaped mounting base is equipped with a positioning roller pressing mechanism for connecting new and old aluminum foils. The U-shaped mounting base is in contact with and limited by the positioning roller pressing mechanism and moves together with the aluminum foil. A reset mechanism is provided at the top of the horizontal plate near the formation tank. The reset mechanism is connected to the U-shaped mounting base and is used to reset the slid-out U-shaped mounting base toward the unwinding frame. Support rods are fixed on both sides of the top of the horizontal plate near the forming tank. A new foil cutter is inclined between the two sets of support rods. The distance between the bottom of the new foil cutter and the outer surface of the aluminum foil is equal to the thickness of a single aluminum foil. An old foil cutter is installed on the side of the forming tank and between the first and second side rollers, at an angle downwards. The bottom end of the old foil cutter is attached to the outer surface of the aluminum foil. An air pressure nozzle is installed at the bottom of the old foil cutter, and the exhaust port of the air pressure nozzle is set to face obliquely upwards.

[0008] Preferably, the unwinding frame includes a U-shaped plate, mounting blocks, pressure plates, adjusting screws, guide grooves, a winding shaft, and bearings. The U-shaped plate is fixed to the top of the base plate. Mounting blocks are symmetrically fixed to the top of the U-shaped plate. Each mounting block has a pressure plate on its top. Adjusting screws are rotatably mounted on each pressure plate and are threadedly connected to the mounting blocks. A winding shaft for mounting aluminum foil rollers is provided between the tops of the U-shaped plates. Bearings are installed at both ends of the winding shaft. A guide groove that mates with the bearings is opened along the length direction of the top of the U-shaped plate. The bearings are limited between the pressure plates and the guide grooves.

[0009] Preferably, the top of the adjusting screw is provided with an adjusting wheel, and the bottom of the pressure plate is provided with an arc-shaped groove that mates with the bearing.

[0010] Preferably, the reset mechanism includes a guide rail, a fixing block, a spring, and a slide rod. The guide rail is arranged on both sides of the top of the horizontal plate along the length direction. The U-shaped mounting seat slides between the two sets of guide rails. Fixing blocks are fixed at both ends of the guide rail. A spring is provided between the side of the U-shaped mounting seat near the forming tank and the fixing block. A slide rod is fixed between the fixing blocks at both ends of the guide rail. The slide rod passes through the inside of the spring and is slidably connected to the U-shaped mounting seat.

[0011] Preferably, the positioning roller pressing mechanism includes a U-shaped frame, a cylinder, a U-shaped plate, a positioning component, and a roller pressing component. The U-shaped frame is fixed to the top of the U-shaped mounting base. A cylinder is vertically mounted on the top of the U-shaped frame. The output end of the cylinder extends to the bottom of the U-shaped frame, and a U-shaped plate is horizontally mounted on the output end of the cylinder. A positioning component for pressing two aluminum foils together is provided at the bottom of the U-shaped plate, and a roller pressing component for joining the two aluminum foils is provided between the two sides of the U-shaped plate.

[0012] Preferably, the positioning component includes a groove, a positioning plate, and a second spring. The groove is formed at the bottom of the U-shaped plate, and the positioning plate is vertically slidably arranged inside the groove. The second spring is provided between the top of the positioning plate and the inner top of the groove.

[0013] Preferably, the roller pressing assembly includes a strip groove, a slider, three springs, and a roller. The strip groove is inclined on both sides of the C-shaped plate, and the bottom end of the strip groove is inclined towards the aluminum foil conveying direction. A slider is slidably installed inside the strip groove. A three spring is provided between the side of the slider and the top of the strip groove. A roller is rotatably installed between the two sets of sliders. The top of the U-shaped mounting base has a groove that cooperates with the roller.

[0014] Preferably, a second sliding rod is fixed between the upper and lower ends of the strip-shaped through groove, the second sliding rod is slidably connected to the slider, and the second sliding rod passes through the inside of the third spring.

[0015] Preferably, the bottom of the positioning plate is parallel to the horizontal plane, and the bottom of the positioning plate is provided with an anti-slip rubber pad.

[0016] Preferably, the bottom of the inner side of the U-shaped mounting base is provided with a wear-resistant ceramic layer, and the opening width of the bottom of the U-shaped mounting base is adapted to the width of the aluminum foil.

[0017] The beneficial effects of this invention are as follows: This invention provides an anti-electrolyte corrosion electrode aluminum foil formation treatment device. By sliding a U-shaped mounting seat along the length of the top of the horizontal plate, the aluminum foil can slide stably inside during conveying, forming an effective limit and preventing aluminum foil deviation from affecting the formation process. There is no need to stop the machine during the foil splicing stage. The new foil is simply covered on top of the old foil, and the connection is completed with the positioning roller pressing mechanism. At the same time, the aluminum foil can drive the U-shaped mounting seat to move synchronously with the conveying, completely eliminating the efficiency loss of traditional foil splicing with machine stop. In addition, after foil splicing, the aluminum foil passes through the bottom of the new foil cutter. There is a gap between the new foil cutter and the single aluminum foil with the same thickness as the aluminum foil. Therefore, the unspliced ​​new foil can be lifted upwards, and its end is cut off from the connection point as the new foil moves. As the new foil and the old foil continue to move, the unconnected end of the old foil can be blown upwards and adhered to the old foil cutter by the air pressure nozzle. As the aluminum foil continues to move, the old foil cutter slides against the aluminum foil surface and can cut off the end of the old foil from the connection point. This improves the functionality of the device and ensures the flat conveying of the aluminum foil in the future. The positioning and rolling mechanism, consisting of a U-shaped frame at the top of the U-shaped mounting base, a cylinder, a U-shaped plate, a groove, a positioning plate, a second spring, a strip groove, a slider, a third spring, a second slide rod, and a roller, uses a cylinder to control the downward movement of the U-shaped plate. First, the positioning plate positions and connects the new and old aluminum foils to the U-shaped mounting base. As the U-shaped plate continues to move downward, the roller is controlled to adhere to the aluminum foil surface. Guided by the strip groove, it moves and rolls along the length of the aluminum foil, joining the new and old foils. Simultaneously, when the cylinder resets, the roller, under the reset action of the third spring, can also reset along the strip groove, passing over the aluminum foil surface again for secondary rolling, improving the joining effect. Furthermore, the fixed length of the strip groove allows for controllable roller travel, effectively preventing surface damage caused by excessive rolling and preserving the original surface condition of the aluminum foil. The reset mechanism, consisting of a guide rail, a fixed block, a spring, and a slide rod, compresses the spring as the U-shaped mounting base moves with the aluminum foil, creating elastic energy storage. After foil splicing is completed, no manual adjustment is required. The reset action of the spring allows the U-shaped mounting base to be reset quickly, preparing it for the next foil splicing operation. This reduces the labor intensity of operators, ensures the timeliness and continuity of subsequent foil splicing operations, and improves the overall ease of use of the device. Attached Figure Description

[0018] Figure 1 This is a diagram showing the initial state during foil connection in a preferred embodiment of the electrode aluminum foil formation treatment device for resisting electrolyte corrosion according to the present invention. Figure 2 This is a diagram showing the cutting state of the new foil end after foil bonding in a preferred embodiment of the electrolyte corrosion resistant electrode aluminum foil formation treatment device of the present invention; Figure 3 This is a diagram showing the cutting state of the old foil end after foil connection in a preferred embodiment of the electrode aluminum foil formation treatment device for resisting electrolyte corrosion according to the present invention; Figure 4 This is a diagram showing the initial state of the top of the horizontal plate in a preferred embodiment of the electrode aluminum foil formation treatment device for resisting electrolyte corrosion according to the present invention. Figure 5 This is a diagram showing the cutting state of the new foil end at the top of the horizontal plate in a preferred embodiment of the electrode aluminum foil formation treatment device for resisting electrolyte corrosion according to the present invention; Figure 6 This is a diagram showing the cutting state of the old foil end on the side of the forming tank in a preferred embodiment of the electrolyte corrosion resistant electrode aluminum foil forming treatment device of the present invention; Figure 7 This is a front view of the C-shaped plate in a preferred embodiment of the electrolyte corrosion resistant electrode aluminum foil formation treatment device of the present invention; Figure 8This is a cross-sectional view of an inverted plate in a preferred embodiment of an anti-electrolyte corrosion electrode aluminum foil formation treatment device of the present invention; Figure 9 This is a structural diagram of an unwinding frame in a preferred embodiment of an anti-electrolyte corrosion electrode aluminum foil formation treatment device of the present invention; Figure 10 This is a U-shaped mounting base diagram of a preferred embodiment of an anti-electrolyte corrosion electrode aluminum foil formation treatment device of the present invention.

[0019] In the diagram: 1. Base plate; 2. Formation tank; 3. Unwinding frame; 301. U-shaped plate; 302. Mounting block; 303. Pressure plate; 304. Adjusting screw; 305. Guide groove; 306. Reel; 307. Bearing; 4. Upper guide roller; 5. First side roller; 6. Second side roller; 7. Horizontal plate; 8. U-shaped mounting base; 9. Reset mechanism; 901. Guide rail; 902. Fixing block; 903. Spring 1; 904. Slide rod 1; 10. Positioning roller pressing mechanism; 1001. U-shaped frame; 1002. Cylinder; 1003. Cham-shaped plate; 1004. Groove; 1005. Positioning plate; 1006. Spring 2; 1007. Strip groove; 1008. Slider; 1009. Spring 3; 1010. Slide rod 2; 1011. Roller; 11. Support rod; 12. New foil cutter; 13. Old foil cutter; 14. Air pressure nozzle. Detailed Implementation

[0020] To enable those skilled in the art to more clearly understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0021] Example 1 like Figures 1-10 As shown, this embodiment provides an anti-electrolyte corrosion electrode aluminum foil formation treatment device, including a base plate 1, a formation tank 2 disposed on the top of the base plate 1, an unwinding frame 3 installed on one side of the base plate 1, and an upper guide roller 4, a first side roller 5, and a second side roller 6 arranged sequentially along the aluminum foil conveying path. A horizontal plate 7 is fixed between the side of the unwinding frame 3 and the forming tank 2. A U-shaped mounting seat 8 for limiting and guiding the aluminum foil is slidably provided on the top of the horizontal plate 7 along its own length. The top of the U-shaped mounting base 8 is provided with a positioning roller pressing mechanism 10 for connecting new and old aluminum foils, and the U-shaped mounting base 8 is fixed to the aluminum foil by the positioning roller pressing mechanism 10 and moves together with the aluminum foil. A reset mechanism 9 is provided at the top of the horizontal plate 7 near the formation tank 2. The reset mechanism 9 is connected to the U-shaped mounting base 8 and is used to reset the slid-out U-shaped mounting base 8 toward the unwinding frame 3. Support rods 11 are fixed on both sides of the top of the horizontal plate 7 near the end of the forming tank 2. A new foil cutter 12 is inclinedly mounted between the two sets of support rods 11. The distance between the bottom end of the new foil cutter 12 and the outer surface of the aluminum foil is equal to the thickness of a single aluminum foil. A used foil cutter 13 is inclined downward on the side of the forming tank 2 and located between the first side roller 5 and the second side roller 6. The bottom end of the used foil cutter 13 is attached to the outer surface of the aluminum foil. A pneumatic nozzle 14 is installed at the bottom of the used foil cutter 13, and the exhaust port of the pneumatic nozzle 14 is set to face obliquely upward.

[0022] Overall working principle: Unwinding and conveying stage: The unwinding frame 3 releases the aluminum foil, which slides and is conveyed along the inside of the U-shaped mounting seat 8 above the horizontal plate 7. The U-shaped mounting seat 8 prevents the aluminum foil from deviating through limiting guidance. Subsequently, the aluminum foil passes through the second side roller 6, the first side roller 5, and the upper guide roller 4 in sequence and enters the formation tank 2. After electrochemical oxidation treatment, an Al2O3 anti-corrosion film layer is generated, and finally it is discharged through the upper guide roller 4.

[0023] Foil connection stage: When the old aluminum foil on the unwinding frame 3 is about to run out, there is no need to stop the machine. The new aluminum foil is placed on top of the old aluminum foil and together they are placed in the U-shaped mounting base 8. The positioning roller pressing mechanism 10 is started to complete the connection of the new and old aluminum foil. During the connection process, the aluminum foil drives the U-shaped mounting base 8 to slide along the guide rail 901 of the horizontal plate 7 towards the formation tank 2. The spring 903 of the compression reset mechanism 9 realizes elastic energy storage.

[0024] Cutting and flattening stage: After foil splicing, the aluminum foil continues to be conveyed. The bottom end of the new foil cutter 12 is adapted to the thickness of a single aluminum foil, allowing only double-layered aluminum foil to pass through. The unspliced ​​ends of the new foil are lifted and cut off. At the same time, the air pressure nozzle 14 blows air obliquely upwards to the unspliced ​​ends of the old aluminum foil, making it adhere to the old foil cutter 13. As the aluminum foil moves, the old foil cutter 13 cuts off the excess ends of the old foil, ensuring that the aluminum foil is conveyed flat.

[0025] Reset preparation stage: After the cutting is completed, the spring 903 of the reset mechanism 9 releases elastic potential energy, which drives the U-shaped mounting base 8 to reset along the slide rod 904 towards the unwinding frame 3, quickly preparing for the next foil connection, avoiding fluctuations in electrolyte temperature and concentration throughout the process, and ensuring the consistency of film formation quality.

[0026] Example 2 The solution in Example 1 will be further described below with reference to its specific working method. In this embodiment, the unwinding frame 3 includes a U-shaped plate 301, a mounting block 302, a pressure plate 303, an adjusting screw 304, a guide groove 305, a winding shaft 306, and a bearing 307. The U-shaped plate 301 is fixed to the top of the base plate 1. The mounting blocks 302 are symmetrically fixed to the top of the U-shaped plate 301. Each mounting block 302 has a pressure plate 303 on its top. Each pressure plate 303 has an adjusting screw 304 rotatably mounted on it, and the adjusting screw 304 is threadedly connected to the mounting block 302. A winding shaft 306 for mounting aluminum foil rollers is provided between the tops of the U-shaped plates 301. Bearings 307 are installed at both ends of the winding shaft 306. A guide groove 305 that cooperates with the bearing 307 is opened along the length direction on the top of the U-shaped plate 301. The bearing 307 is limited between the pressure plate 303 and the guide groove 305.

[0027] Partial working principle: The aluminum foil roller is fitted onto the reel 306, and the bearings 307 at both ends of the reel 306 are placed into the guide grooves 305 of the U-shaped plate 301. The adjusting wheel at the top of the adjusting screw 304 is rotated, so that the adjusting screw 304 is screwed downward along the mounting block 302, which drives the pressure plate 303 to move downward until the arc groove at the bottom of the pressure plate 303 is tightly fitted with the bearing 307, thereby fixing the aluminum foil roller. When the aluminum foil is conveyed, the reel 306 rotates in the guide groove 305 through the bearing 307 to ensure smooth unwinding without jamming.

[0028] In this embodiment, the top of the adjusting screw 304 is provided with an adjusting wheel, and the bottom of the pressure plate 303 is provided with an arc-shaped groove that cooperates with the bearing 307.

[0029] Local working principle: The adjusting wheel provides the operator with a convenient point of force application, making it easy to rotate the adjusting screw 304; the arc groove at the bottom of the pressure plate 303 is precisely matched with the outer circle of the bearing 307, increasing the contact area, improving the fixing stability of the bearing 307, and preventing the roll 306 from shifting or shaking when unwinding.

[0030] In this embodiment, the reset mechanism 9 includes a guide rail 901, a fixing block 902, a spring 903, and a slide rod 904. The guide rail 901 is arranged on both sides of the top of the horizontal plate 7 along the length direction. The U-shaped mounting seat 8 slides between the two sets of guide rails 901. The two ends of the guide rail 901 are fixed with fixing blocks 902. The side of the U-shaped mounting seat 8 near the formation tank 2 is provided with a spring 903 between it and the fixing block 902. The slide rod 904 is fixed between the fixing blocks 902 at both ends of the guide rail 901. The slide rod 904 passes through the inside of the spring 903 and is slidably connected to the U-shaped mounting seat 8.

[0031] Local working principle: The U-shaped mounting base 8 slides along the guide rail 901 at the top of the horizontal plate 7. When the U-shaped mounting base 8 moves with the aluminum foil towards the forming tank 2, it compresses the spring 903 to store energy between the fixed block 902 and the U-shaped mounting base 8. After the foil is connected, the aluminum foil separates from the U-shaped mounting base 8, and the spring 903 releases its elastic potential energy, pushing the U-shaped mounting base 8 to automatically reset along the guide rail 901 and the slide rod 904 towards the unwinding frame 3 without manual intervention. The slide rod 904 limits the spring 903 when it is compressed to prevent the spring 903 from twisting and deforming when it extends and retracts.

[0032] In this embodiment, the positioning roller pressing mechanism 10 includes a U-shaped frame 1001, a cylinder 1002, a U-shaped plate 1003, a positioning component, and a roller pressing component. The U-shaped frame 1001 is fixed to the top of the U-shaped mounting base 8. The cylinder 1002 is vertically mounted on the top of the U-shaped frame 1001. The output end of the cylinder 1002 extends to the bottom of the U-shaped frame 1001, and the U-shaped plate 1003 is horizontally mounted on the output end of the cylinder 1002. The bottom of the U-shaped plate 1003 is provided with a positioning component for pressing and bonding two aluminum foils together. A roller pressing component for joining two aluminum foils is provided between the two sides of the U-shaped plate 1003.

[0033] Local working principle: When joining foils, cylinder 1002 is activated, which pushes the shaped plate 1003 downward. First, the positioning component positions and adheres the new and old aluminum foils, and then the roller pressing component completes the connection. When cylinder 1002 is reset, the roller pressing component slides in the opposite direction to achieve secondary roller pressing, thereby improving the connection strength.

[0034] In this embodiment, the positioning component includes a groove 1004, a positioning plate 1005, and a second spring 1006. The groove 1004 is formed at the bottom of the U-shaped plate 1003. The positioning plate 1005 is vertically slidably disposed inside the groove 1004. The second spring 1006 is disposed between the top of the positioning plate 1005 and the inner top of the groove 1004.

[0035] Local working principle: When the U-shaped plate 1003 moves down, the positioning plate 1005 first contacts the new and old aluminum foils. The spring 1006 is compressed to generate elastic pressure, which tightly fits the new and old aluminum foils into the U-shaped mounting base 8 to prevent misalignment during rolling.

[0036] In this embodiment, the rolling assembly includes a strip groove 1007, a slider 1008, a spring 1009, and a roller 1011. The strip groove 1007 is inclinedly opened on both sides of the U-shaped plate 1003, and the bottom end of the strip groove 1007 is inclined towards the aluminum foil conveying direction. The slider 1008 is slidably arranged inside the strip groove 1007. A spring 1009 is provided between the side of the slider 1008 and the top of the strip groove 1007. The roller 1011 is rotatably installed between the two sets of sliders 1008. The top of the U-shaped mounting base 8 is provided with a groove that cooperates with the roller 1011.

[0037] Local working principle: After the shaped plate 1003 continues to move downward, the roller 1011 is in contact with the surface of the aluminum foil. Under the pushing force of the cylinder 1002 and the guiding action of the strip groove 1007, the slider 1008 slides in the opposite direction of the aluminum foil conveying along the second slider 1010. The roller 1011 rolls on the surface of the aluminum foil, and the third spring 1009 is compressed, completing the first rolling. When the cylinder 1002 resets, the third spring 1009 resets and pushes the slider 1008 to slide in the opposite direction. The roller 1011 resets and rolls laterally towards the aluminum foil conveying, realizing the second rolling.

[0038] In this embodiment, a second sliding rod 1010 is fixed between the upper and lower ends of the strip groove 1007. The second sliding rod 1010 is slidably connected to the slider 1008, and the second sliding rod 1010 passes through the inside of the third spring 1009.

[0039] Local working principle: Slide rod 2 1010 passes through slider 1008 and is fixed at both ends of the strip groove 1007, providing precise sliding guidance for slider 1008, ensuring its stable movement along the inclined direction of the strip groove 1007, and preventing spring 3 1009 from twisting and deforming when it extends and retracts.

[0040] In this embodiment, the bottom of the positioning plate 1005 is parallel to the horizontal plane, and the bottom of the positioning plate 1005 is provided with an anti-slip rubber pad.

[0041] Local working principle: The anti-slip rubber pad is made of soft material with a high coefficient of friction. When it comes into contact with the aluminum foil, it increases the friction to prevent positioning slippage and avoids damage to the aluminum foil surface caused by direct contact with the rigid positioning plate 1005, thus ensuring the original state of the aluminum foil.

[0042] In this embodiment, the bottom of the inner side of the U-shaped mounting base 8 is provided with a wear-resistant ceramic layer, and the opening width of the bottom of the U-shaped mounting base 8 is adapted to the width of the aluminum foil.

[0043] Local working principle: The wear-resistant ceramic layer on the inner bottom of the U-shaped mounting base 8 has high hardness and strong wear resistance, which reduces friction loss when the aluminum foil slides and extends the service life of the U-shaped mounting base 8; its bottom opening width is adapted to the width of the aluminum foil, ensuring no left or right deviation when the aluminum foil is conveyed, and ensuring the stability of the chemical formation process.

[0044] Example 3 The solutions in Embodiment 1 and Embodiment 2 will be further described below with reference to their specific working methods. Aluminum foil roller installation and fixing: Place the aluminum foil roller to be processed onto the roll 306 of the unwinding frame 3, and place the bearings 307 at both ends of the roll 306 into the guide grooves 305 of the U-shaped plate 301; rotate the adjusting wheel of the adjusting screw 304 so that the adjusting screw 304 is rotated downward along the mounting block 302, driving the pressure plate 303 to move downward until the arc groove at the bottom of the pressure plate 303 is tightly fitted with the bearing 307, thus completing the firm fixing of the aluminum foil roller and preparing for subsequent unwinding.

[0045] Continuous formation conveying: After the aluminum foil is released from the roll 306, it enters the U-shaped mounting seat 8 above the horizontal plate 7. The wear-resistant ceramic layer on the bottom inner side of the U-shaped mounting seat 8 reduces sliding friction, and the opening width is adapted to the width of the aluminum foil to achieve precise positioning and guidance, avoiding left and right deviation during aluminum foil conveying. After being guided by the U-shaped mounting seat 8, the aluminum foil passes through the second side roller 6, the first side roller 5, and the upper guide roller 4 in sequence, and enters the formation tank 2 for electrochemical oxidation treatment to generate a dense and stable Al2O3 anti-corrosion film layer. The treated aluminum foil is then discharged through the upper guide roller 4 and enters the subsequent process to realize continuous formation operation.

[0046] No-stop foil connection: When the old aluminum foil on the unwinding frame 3 is about to run out, there is no need to stop the operation of the device. The operator fixes the new aluminum foil roller on the unwinding frame 3 in the above installation method, covers the top of the old aluminum foil with the beginning end of the new aluminum foil, and places them together in the U-shaped mounting seat 8. The cylinder 1002 of the positioning roller pressing mechanism 10 is activated. The cylinder 1002 pushes the U-shaped plate 1003 to move downward. First, the positioning plate 1005 contacts the new and old aluminum foils. The spring 1006 is compressed to generate elastic pressure. With the help of the anti-slip rubber pad, the new and old aluminum foils are tightly attached and positioned, and integrated with the U-shaped mounting base 8. As the shaped plate 1003 continues to move downward, the roller 1011 comes into contact with the surface of the aluminum foil. Under the pushing force of the cylinder 1002 and the guiding action of the strip groove 1007, the slider 1008 slides in the opposite direction of the aluminum foil conveying along the second slide rod 1010, the third spring 1009 is compressed, and the roller 1011 performs the first roll forming connection between the new and old aluminum foil. When the cylinder 1002 resets and drives the shaped plate 1003 to move upward, the spring 1009 resets and pushes the slider 1008 to slide in the opposite direction. The roller 1011 resets along the strip groove 1007 and performs secondary roller pressing on the joint to improve the connection stability. The fixed length of the strip groove 1007 limits the travel of the roller 1011, effectively avoiding damage to the aluminum foil surface caused by excessive roller pressing.

[0047] U-shaped mounting base 8 slides and stores energy: During the foil connection process, the aluminum foil is continuously conveyed towards the formation tank 2, which drives the U-shaped mounting base 8, which is fixed thereto, to slide synchronously along the guide rail 901 at the top of the horizontal plate 7; when the U-shaped mounting base 8 moves, it squeezes the spring 903 of the reset mechanism 9, so that the spring 903 is compressed and stores energy between the fixed block 902 and the U-shaped mounting base 8, and the slide rod 904 provides precise sliding guidance for the U-shaped mounting base 8 to avoid deviation.

[0048] Excess ends of new and old foils are cut off: After the foil splicing is completed, the aluminum foil continues to be fed and enters the cutting stage. When the new foil is cut, when the stacked new and old aluminum foils pass the bottom of the new foil cutter 12, the distance between the bottom of the new foil cutter 12 and the thickness of a single aluminum foil is only enough to allow the double-layered aluminum foil to pass through. The ends of the new foils that are not connected with the old foils are lifted up by the new foil cutter 12. As the aluminum foil continues to be fed, the new foil cutter 12 cuts off the excess ends of the new foils from the splicing point. When the old foil is being cut, as the aluminum foil passes between the first side roller 5 and the second side roller 6, the air pressure nozzle 14 sprays air obliquely upwards, blowing the unconnected ends of the old aluminum foil upwards and attaching them to the blade of the old foil cutter 13. As the aluminum foil is conveyed towards the second side roller 6, the old foil cutter 13 slides along the surface of the aluminum foil, cutting off the excess ends of the old foil, ensuring that the subsequent aluminum foil conveying is flat and free from redundant structural interference.

[0049] Automatic reset of U-shaped mounting base 8: After the new and old foils are cut, the positioning force between the aluminum foil and the U-shaped mounting base 8 disappears. The spring 903 of the reset mechanism 9 releases elastic potential energy, pushing the U-shaped mounting base 8 to slide quickly along the guide rail 901 and the slide rod 904 towards the unwinding frame 3 to reset to the initial position. No manual adjustment is required, which can prepare for the foil splicing operation when the aluminum foil is exhausted, ensuring production continuity.

[0050] The above description is merely a further embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope disclosed in the present invention, based on the technical solution and concept of the present invention, shall fall within the scope of protection of the present invention.

Claims

1. An electrode aluminum foil formation treatment device resistant to electrolyte corrosion, comprising a base plate (1), a formation tank (2) disposed on the top of the base plate (1), an unwinding frame (3) installed on one side of the base plate (1), and an upper guide roller (4), a first side roller (5), and a second side roller (6) arranged sequentially along the aluminum foil conveying path. Its features are: A horizontal plate (7) is fixed between the side of the unwinding frame (3) and the forming tank (2). A U-shaped mounting seat (8) for limiting and guiding the aluminum foil is slidably provided on the top of the horizontal plate (7) along its own length direction. The top of the U-shaped mounting base (8) is provided with a positioning roller pressing mechanism (10) for connecting new and old aluminum foils, and the U-shaped mounting base (8) is in contact with the aluminum foil and moves together with the aluminum foil through the positioning roller pressing mechanism (10). A reset mechanism (9) is provided at the top of the horizontal plate (7) near the formation tank (2). The reset mechanism (9) is connected to the U-shaped mounting base (8) and is used to reset the slid-out U-shaped mounting base (8) toward the unwinding frame (3). The top of the horizontal plate (7) is fixed with support rods (11) on both sides near the end of the forming tank (2). A new foil cutter (12) is inclined between the two sets of support rods (11). The distance between the bottom of the new foil cutter (12) and the outer surface of the aluminum foil is equal to the thickness of a single piece of aluminum foil. An old foil cutter (13) is inclined downward on the side of the forming tank (2) and between the first side roller (5) and the second side roller (6). The bottom end of the old foil cutter (13) is attached to the outer surface of the aluminum foil. An air pressure nozzle (14) is installed at the bottom of the old foil cutter (13), and the exhaust port of the air pressure nozzle (14) is set to face obliquely upward.

2. The electrode aluminum foil formation treatment device for resisting electrolyte corrosion according to claim 1, characterized in that: The unwinding frame (3) includes a U-shaped plate (301), mounting blocks (302), pressure plates (303), adjusting screws (304), guide grooves (305), a winding shaft (306), and bearings (307). The U-shaped plate (301) is fixed to the top of the base plate (1). Mounting blocks (302) are symmetrically fixed to the top of the U-shaped plate (301). Each mounting block (302) has a pressure plate (303) on its top. Adjusting screws are rotatably mounted on each pressure plate (303). The adjusting screw (304) is threadedly connected to the mounting block (302). A roller (306) for mounting aluminum foil rollers is provided between the top of the U-shaped plate (301). Bearings (307) are installed at both ends of the roller (306). A guide groove (305) that cooperates with the bearing (307) is opened along the length direction at the top of the U-shaped plate (301). The bearing (307) is limited between the pressure plate (303) and the guide groove (305).

3. The electrode aluminum foil formation treatment device for resisting electrolyte corrosion according to claim 2, characterized in that: The top of the adjusting screw (304) is provided with an adjusting wheel, and the bottom of the pressure plate (303) is provided with an arc-shaped groove that cooperates with the bearing (307).

4. The electrode aluminum foil formation treatment device for resisting electrolyte corrosion according to claim 1, characterized in that: The reset mechanism (9) includes a guide rail (901), a fixing block (902), a spring (903), and a slide rod (904). The guide rail (901) is arranged on both sides of the top of the horizontal plate (7) along the length direction. The U-shaped mounting seat (8) slides between the two sets of guide rails (901). The two ends of the guide rail (901) are fixed with fixing blocks (902). The side of the U-shaped mounting seat (8) near the formation tank (2) is provided with a spring (903) between it and the fixing block (902). The slide rod (904) is fixed between the fixing blocks (902) at both ends of the guide rail (901). The slide rod (904) passes through the inside of the spring (903) and is slidably connected to the U-shaped mounting seat (8).

5. The electrode aluminum foil formation treatment device for resisting electrolyte corrosion according to claim 1, characterized in that: The positioning roller pressing mechanism (10) includes a U-shaped frame (1001), a cylinder (1002), a U-shaped plate (1003), a positioning component, and a roller pressing component. The U-shaped frame (1001) is fixed at the top of the U-shaped mounting base (8). The cylinder (1002) is vertically mounted on the top of the U-shaped frame (1001). The output end of the cylinder (1002) extends to the bottom of the U-shaped frame (1001), and the U-shaped plate (1003) is horizontally mounted on the output end of the cylinder (1002). The bottom of the U-shaped plate (1003) is provided with a positioning component for pressing and bonding two aluminum foils together. The two sides of the U-shaped plate (1003) are provided with a roller pressing component for joining the two aluminum foils.

6. The electrode aluminum foil formation treatment device for resisting electrolyte corrosion according to claim 5, characterized in that: The positioning component includes a groove (1004), a positioning plate (1005), and a second spring (1006). The groove (1004) is opened at the bottom of the U-shaped plate (1003). The positioning plate (1005) is vertically slidably arranged inside the groove (1004). The second spring (1006) is provided between the top of the positioning plate (1005) and the inner top of the groove (1004).

7. The electrode aluminum foil formation treatment device for resisting electrolyte corrosion according to claim 5 or 6, characterized in that: The rolling assembly includes a strip channel (1007), a slider (1008), a spring three (1009), and a roller (1011). The strip channel (1007) is inclined on both sides of the U-shaped plate (1003), and the bottom end of the strip channel (1007) is inclined towards the aluminum foil conveying direction. The slider (1008) is slidably arranged inside the strip channel (1007). A spring three (1009) is provided between the side of the slider (1008) and the top of the strip channel (1007). A roller (1011) is rotatably installed between the two sets of sliders (1008). The top of the U-shaped mounting base (8) is provided with a groove that cooperates with the roller (1011).

8. The electrode aluminum foil formation treatment device for resisting electrolyte corrosion according to claim 7, characterized in that: A slide rod 2 (1010) is fixed between the upper and lower ends of the strip groove (1007). The slide rod 2 (1010) is slidably connected to the slider (1008), and the slide rod 2 (1010) passes through the inside of the spring 3 (1009).

9. The electrode aluminum foil formation treatment device for resisting electrolyte corrosion according to claim 6, characterized in that: The bottom of the positioning plate (1005) is parallel to the horizontal plane, and the bottom of the positioning plate (1005) is provided with an anti-slip rubber pad.

10. The electrode aluminum foil formation treatment device for resisting electrolyte corrosion according to claim 1, characterized in that: The bottom of the inner side of the U-shaped mounting base (8) is provided with a wear-resistant ceramic layer, and the opening width of the bottom of the U-shaped mounting base (8) is adapted to the width of the aluminum foil.

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