Automatic stable foil connecting device for electrode foil production

Abstract

The invention relates to the technical field of electrode foil production and processing, and particularly discloses an automatic stable foil connecting device for electrode foil production, which comprises a base, a coil unloading mechanism and a guide roller are respectively arranged at two ends of the base, a foil connecting mechanism is arranged in the middle of the base, and the foil connecting mechanism comprises a platen fixed in the base. A row of riveting nails are arranged in each set of nail penetrating holes, the bottoms of the row of riveting nails are jointly connected with an extrusion roller base, extrusion rollers are rotationally arranged in the extrusion roller base, and an inclined end extrusion block and a driving mechanism are arranged in the machine base; the two ends of the platen extend outwards to form protruding plates, and the protruding plates are connected with inclined face correcting clamping strips through guiding protruding columns and second springs. According to the invention, a specially designed foil connecting mechanism is adopted, so that the problem of poor connecting stability caused by deviation between the two riveted parts is solved, meanwhile, the surface quality problem of local bumps caused by the fact that the conventional riveting parts are directly and completely pressed on the surface of the aluminum foil at one time is effectively avoided, and the surface quality and stability after connection are improved.

Description

Technical Field

[0001] The invention relates to the technical field of electrode foil production and processing, and in particular discloses an automatic stable foil splicing device for electrode foil production. Background Art

[0002] During the production and processing of electrode foil, the raw material aluminum foil roll needs to be unloaded and pulled, and it needs to be processed through cleaning, drying, coating, trimming and other processes. After the aluminum foil roll is unloaded, it needs to be connected to the end of the new aluminum foil roll to ensure the continuity of the entire electrode foil production process.

[0003] Traditionally, aluminum foil is connected by experienced operators using foil hammers to hammer the overlap of the new and old aluminum foils, thereby forming a riveting point between the overlapped parts to achieve connection. However, the manual hammering method is not only time-consuming and labor-intensive, but also has low operating efficiency, and the stability of the aluminum foil connection cannot be effectively guaranteed. At present, some manufacturers in the industry also use corresponding foil splicing devices to connect the new and old aluminum foils, but there are still some shortcomings.

[0004] For example, the invention patent with application number 201410624607.7 discloses a foil splicing machine, including a frame, on which an input roller, a riveting structure, and an output roller are arranged. The electrode foil is introduced into the riveting structure through the input roller and riveted, and then led out through the output roller. The riveting structure includes an upper foil splicing plate with small holes, a lower foil splicing plate with small holes arranged parallel to the upper foil splicing plate, a flat plate with ejector pins arranged under the lower foil splicing plate, and a lifting cylinder connected to the flat plate, and the position of the ejector pins matches the small holes on the upper foil splicing plate and the lower foil splicing plate. Another example is the invention patent with application number 202210522363.6, which discloses a foil splicing device for producing chemically formed foil, including a riveting mechanism located above the foil splicing platform, a first roller group located on the left side of the foil splicing platform, a roller located on the left side of the first roller group, and a third walking mechanism that drives the roller to move up and down; the riveting mechanism includes a plurality of riveting parts and a riveting cylinder that drives the riveting parts; the first roller group includes a first active roller and a first driven roller that are transmission-connected, and there is a gap between the first active roller and the first driven roller for the passage of aluminum foil. Although the above two technical solutions for electrode foil splicing devices realize the connection between the head and tail of the new and old aluminum foils, there are still shortcomings such as unstable connection after splicing, bulging at the foil splicing location, and the need to manually pull the new coil to the foil splicing station for auxiliary operations. The reason is that, on the one hand, the ends are not accurately aligned during the foil splicing process, and there is a deviation at the joint, which is easy to break during the subsequent traction process; on the other hand, the riveting parts in the existing foil splicing mechanism are directly pressed together on the stacked aluminum foil, resulting in the aluminum foil between the four riveting points being unable to be flattened and stretched, which in turn produces bulges, affecting the riveting quality and stability. Therefore, in view of the above-mentioned shortcomings of the existing foil splicing machine, this application proposes an automatic stable foil splicing device for electrode foil production that can effectively solve the above-mentioned technical problems. Summary of the invention

[0005] The present invention aims to provide an automatic stable foil splicing device for electrode foil production to solve the problems of unstable connection after foil splicing, bulging at the foil splicing position and the need to manually pull the new coil to the foil splicing station for auxiliary operations in the existing foil splicing machines.

[0006] The present invention is achieved through the following technical solutions: An automatic stable foil splicing device for electrode foil production comprises a machine base, two ends of the machine base are respectively provided with a roll unloading mechanism and a guide roller, a foil splicing mechanism is provided in the middle of the machine base, the foil splicing mechanism comprises a table plate fixed in the machine base, a plurality of groups of nail holes are provided on the table plate, a U-shaped plate is connected to the lower end of the table plate, a guide hole aligned with the nail holes is provided on the U-shaped plate, a row of rivet nails is provided in each group of the nail holes, and a squeezing roller seat is commonly connected to the bottom of a row of rivet nails, a first spring is connected between the squeezing roller seat and the U-shaped plate, squeezing rollers are rotatably provided in the squeezing roller seats, an oblique end squeezing block acting on the squeezing roller and a driving mechanism for driving the oblique end squeezing block to move horizontally are provided in the machine base; Convex plates extend outwardly at both ends of the table, and bevel correction strips are connected to the convex plates through guide bosses and a second spring, and the ends of the two bevel correction strips that are close to each other are vertical surfaces and are arranged above the upper surface of the table, and the upper ends of the bevel correction strips are arranged in a smooth bevel. A pressure plate and a downward pressing device for driving the pressure plate to move up and down are arranged directly above the table, and a through hole aligned with the nail hole is opened on the pressure plate, and bevel pressure strips facing downward and acting on the bevel correction strips are arranged at both ends of the pressure plate.

[0007] The automatic stable foil splicing device for electrode foil production disclosed in the present invention has a special design of a foil splicing mechanism. During the connection process of the new and old aluminum foils, the head and tail ends of the new and old aluminum foils are superimposed on the upper surface of the table, and then the pressing device pushes the pressing plate downward. During the downward movement of the pressing plate, the two inclined pressure strips will first contact the two inclined correction clamps, and under the pressure of the inclined surfaces of the two, the two inclined correction clamps will overcome the force of the first spring and move closer to each other. Since the two inclined correction clamps are close to each other, one side is a vertical surface and is higher than the table by a certain distance, so that the new and old aluminum foils can be centered and corrected by the two inclined correction clamps close to each other until the pressing plate is pressed against the upper surface of the table.

[0008] Then the riveting action is started again, and the driving mechanism drives the oblique end extrusion block to move horizontally. During the horizontal movement of the oblique end extrusion block, the inclined surface of its side end will contact the extrusion roller, and then push the extrusion roller upward for a certain distance until the upper horizontal surface of the oblique end extrusion block contacts the extrusion roller. The entire horizontal movement process of the oblique end extrusion block can push multiple extrusion rollers upward successively, so that multiple rows of rivet nails can pass through the corresponding nail holes in sequence, and the overlapped aluminum foils are pressed into the through holes to form, so that the head and tail aluminum foils can be riveted together, and the existing riveting parts are directly pressed on the surface of the aluminum foil at one time to cause the surface quality problem of local bulging, thereby improving the surface quality and stability after connection.

[0009] As a further configuration of the above scheme, a rectangular groove is provided on the upper surface of the pressure plate, a rectangular plate is connected to the rectangular groove through a third spring, a flattening column aligned with each through hole is provided on the lower surface of the rectangular plate, the diameter of the flattening column is equal to the aperture of the through hole, and the aperture of the through hole is larger than the aperture of the nail hole, and a pressing mechanism for pressing the rectangular plate downward is provided on the pressure plate.

[0010] As a further configuration of the above scheme, the pressing mechanism includes bearing seats arranged at both ends of the pressure plate, a rotating shaft is rotatably arranged in the bearing seat, a cam block that acts on the rectangular plate is arranged on the rotating shaft, and a second motor is connected to the end of the rotating shaft.

[0011] The present invention further improves the design of the foil docking mechanism. After the rivet nail rivets the aluminum foil together, it is first withdrawn from the through hole in the nail hole, and then the pressing mechanism is started so that the rectangular plate is pressed into the bottom of the rectangular groove under the action of the cam block. Then the flattening column moves downward from the upper end of the through hole and flattens the riveting protrusions around the top of the nail hole, so that the surface of the aluminum foil after riveting is automatically flattened, and the connection stability of the two aluminum foils is further improved. At the same time, the aluminum foil at the riveted joint will not be affected in any way during the subsequent traction process.

[0012] As a further configuration of the above scheme, an automatic folding mechanism before riveting is arranged in the machine base, and the automatic folding mechanism before riveting includes a horizontal track fixed on the side wall of the machine base and a movable frame moving along the horizontal track, and a walking mechanism for driving the movable frame to move is arranged in the machine base, and a lifting device is arranged on the movable frame, and a suction cup assembly is connected to the lower end of the lifting device.

[0013] As a further configuration of the above scheme, the walking mechanism includes transmission wheels arranged at both ends below the horizontal track, and a third motor is connected to the end of one of the transmission wheels, a transmission belt is arranged between the two transmission wheels, and the transmission belt is fixedly connected to the moving frame.

[0014] As a further configuration of the above scheme, a support plate is arranged in the machine base near the unloading mechanism, and a shovel plate whose end acts on the surface of the aluminum foil roll is rotatably arranged at one end of the support plate near the unloading mechanism, and a telescopic rod for driving the shovel plate to rotate is arranged in the machine base.

[0015] The present invention further improves the design of the entire device. During the foil splicing process, the shovel plate first scoops up the end of the new aluminum foil roll and transports it to the upper surface of the support plate, and then the walking mechanism moves the mobile frame horizontally to just above the support plate. Then, the lifting device and the suction cup assembly grab the new aluminum foil and place it on the upper surface of the table so that it is overlapped with the tail of the old aluminum foil, and finally the foil splicing is performed, so that the entire foil splicing process is basically fully automated, without the need for manual assistance, and the foil splicing efficiency is improved.

[0016] As a further arrangement of the above scheme, the two ends of the oblique-end extrusion block are inclined and the middle is horizontally arranged. The driving mechanism includes a screw rod and a horizontal sliding rod parallel to each other arranged in the machine base. One end of the screw rod is connected to a first motor. The oblique-end extrusion block is provided with a screw nut block and a sliding hole block which respectively act on the screw rod and the horizontal sliding rod.

[0017] As a further configuration of the above scheme, the plurality of groups of nail holes are arranged perpendicular to the pulling direction of the aluminum foil, and two adjacent groups of nail holes are arranged staggered in the pulling direction of the aluminum foil. The arrangement design of the nail holes can make the riveting points of the aluminum foil staggered along the pulling direction after riveting, thereby improving the riveting stability between the first and last aluminum foils.

[0018] As a further configuration of the above scheme, a top frame is provided at the upper end of the machine base, the downward pushing device is provided on the top frame, the pressure plate is connected to the lower end of the downward pushing device, and a vertical sliding rod penetrating the upper surface of the top frame is provided on the pressure plate.

[0019] Compared with the prior art, the present invention has the following beneficial effects: The foil splicing device disclosed in the present invention adopts a specially designed foil splicing mechanism, so that in the process of connecting the ends of the aluminum foil, the ends of the stacked aluminum foil can be first centered and then riveted, thereby avoiding the problem of poor connection stability in the subsequent traction process due to offset between the two after riveting.

[0020] The foil connecting mechanism in the present invention changes the existing fixed connection mode of the riveted parts with the same pressing plate, and movably connects the riveted parts in rows. During the riveting forming process, the multiple rows of riveted parts are pressed on the surface of the aluminum foil in succession by the movement of the oblique end extrusion block for riveting connection, which effectively avoids the surface quality problem of local bulging caused by the existing riveted parts being directly pressed on the surface of the aluminum foil all at once, and improves the surface quality and stability after connection.

[0021] The present invention further improves the design of the foil docking mechanism. After the aluminum foil is riveted and connected by the rivet nail, the flattening column can be pressed into the bottom of the through hole through the pressing mechanism, so that the riveted protrusion is flattened around the top of the nail hole, so that the surface of the aluminum foil after riveting is automatically flattened, and the connection stability of the two aluminum foils is further improved, so that the aluminum foil at the riveted joint will not be affected in any way during the subsequent traction process.

[0022] The present invention further provides an automatic overlapping mechanism before riveting in the machine base, and cooperates with the shovel plate to guide the unloading of the aluminum foil roll, so that in the foil splicing process, the new aluminum foil can be automatically grabbed and placed on the tail end of the old aluminum foil to complete the automatic overlapping effect, and cooperates with the foil splicing mechanism to realize the full automation of foil splicing in electrode foil production, effectively improving its foil splicing speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure from a first angle of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure from a second angle of the present invention; Figure 3 It is a schematic diagram of the main internal plane structure of the present invention; Figure 4 It is a schematic diagram of the internal three-dimensional structure of the present invention; Figure 5 It is a three-dimensional structural schematic diagram of the foil splicing mechanism in the present invention when in operation; Figure 6 It is a schematic diagram of the three-dimensional assembly structure of the foil splicing mechanism in the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the table plate, squeezing roller, bevel correction clamping strip, etc. in the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the downward pressing and pushing device, the pressing plate, etc. in the present invention; Fig. 9 It is a three-dimensional structural schematic diagram of the automatic folding mechanism before riveting in the present invention; Fig.10 It is a schematic diagram of the three-dimensional structure of the machine base, shovel plate, telescopic rod, etc. in the present invention. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0026] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. Figures 1 to 10 , and describes the application in detail with reference to embodiments. Example 1

[0027] Example 1 discloses an automatic stable foil splicing device for electrode foil production, see the attached Figures 1 to 4 The main body of the device includes a machine base 1, a roll unloading mechanism 2 is arranged at the right end of the machine base 1, a foil splicing mechanism 3 is arranged at the middle position of the machine base 1, and a plurality of guide rollers 4 are arranged at the left end of the machine base 1. A new aluminum foil roll 5 is unloaded by the roll unloading mechanism 2, and is riveted to the tail end of the previous roll of aluminum foil at the foil splicing mechanism 3, and then pulled by traction, and enters the downstream process after being guided by the guide roller 4. In addition, a control box 6 for controlling the operation of the entire foil splicing device is also arranged on the front side of the machine base 1.

[0028] Reference Figures 5 to 8 The foil joining mechanism 3 includes a table 301 fixed across the inside of the machine base 1, and multiple groups of nail holes 302 are set perpendicular to the pulling direction of the aluminum foil on the table 301, and each adjacent group of nail holes 302 are staggered in the pulling direction of the aluminum foil, so that the riveting points of the aluminum foil are staggered along the pulling direction after riveting, thereby improving the riveting stability between the first and last aluminum foils. A U-shaped plate 303 is fixedly connected to the lower surface of the table 301, and a guide hole aligned with each nail hole 302 is opened on the U-shaped plate 303. A row of rivet nails 304 is set in each group of nail holes 302, and then a squeeze roller seat 305 is connected to the bottom of the same row of rivet nails 304, and a first spring 306 is connected between the squeeze roller seat 305 and the bottom wall of the U-shaped plate 303, and finally a squeeze roller 307 is rotatably set in each squeeze roller seat 305.

[0029] In order to push the multiple rows of rivet nails 304 into the nail holes 302 one after another, an oblique end extrusion block 308 is arranged below the extrusion roller 307. The two ends of the oblique end extrusion block 308 are inclined and the middle is horizontal. A driving mechanism for driving the oblique end extrusion block 308 to move horizontally is arranged in the machine base 1. The driving mechanism in this embodiment 1 includes a screw rod 309 arranged along the aluminum foil pulling direction, one end of the screw rod 309 is connected to a first motor 310, and a horizontal sliding rod 311 parallel to the screw rod 309 is also arranged in the machine base 1. Then, a screw nut block and a sliding hole block are arranged on the lower surface of the oblique end extrusion block 308, which respectively act on the screw 309 and the horizontal slide bar 311, so that during the operation of the first motor 310, the oblique end extrusion block 308 can move horizontally left and right through the transmission action between the screw 309 and the screw nut block and the guiding action between the horizontal slide bar 311 and the sliding hole block, and during the movement, the oblique end extrusion block 308 can operate on different extrusion rollers 307 in succession, thereby lifting them up one by one.

[0030] A convex plate 312 is extended outward from the lower end of both the front and rear sides of the table 301, and a bevel correction clamp 313 is arranged on the upper surface of the convex plate 312. The ends of the two bevel correction clamps 313 that are close to each other are both vertical surfaces and are a certain distance higher than the upper surface of the table 301, and the upper ends of the bevel correction clamps 313 are arranged in a smooth bevel. A guide boss 3141 and a second spring 314 are arranged on the front and rear end surfaces of the table 301. The second spring 314 is connected to the bevel correction clamp 313, and a sliding hole that matches the guide boss 3141 is opened on the bevel correction clamp 313.

[0031] A top frame 101 located directly above the table 301 is fixedly arranged at the upper end of the base 1, and a downward pressing device 315 is arranged on the upper surface of the top frame 101. The downward pressing device 315 can be a cylinder or a hydraulic cylinder, and a pressing plate 316 is arranged at the lower end of the downward pressing device 315, and a vertical slide bar 317 penetrating the upper surface of the top frame 101 is arranged on the upper surface of the pressing plate 316, so that under the action of the downward pressing device 315, the pressing plate 316 can stably move downward and press on the upper surface of the table 301. A through hole 318 aligned with the nail hole 302 is opened on the pressing plate 316, so that the rivet nail 304 can pass through the nail hole 302 to press the overlapped aluminum foil into the through hole 318 to form, so that the head and tail aluminum foils can be riveted together. Finally, a downward inclined pressure strip 319 that interacts with the inclined correction clamp 313 is integrally formed at the front and rear ends of the pressure plate 316. When the pressure plate 316 moves downward, the inclined pressure strip 319 can first contact the inclined correction clamp 313 and exert a squeezing force on it, so that the two inclined correction clamps 313 overcome the action of the second spring 314 and move closer to each other, so that the two aluminum foils at the head and tail are centered and corrected before riveting through the vertical surfaces on the two inclined correction clamps 313, ensuring that the two can be accurately overlapped. Example 2

[0032] Example 2 discloses an automatic stable foil splicing device for electrode foil production that is improved based on the technical solution in Example 1. The similarities between the device and Example 1 are not described again.

[0033] Reference Figure 5 and attached Figure 6 In this embodiment 2, a rectangular groove 320 covering all the through holes 318 is opened in the center of the upper surface of the pressure plate 316, and a rectangular plate 321 is connected to the bottom wall of the rectangular groove 320 through a third spring 3201. A flattening column 322 aligned with each through hole 318 is fixedly connected to the lower surface of the rectangular plate 321, and the diameter of the flattening column 322 is equal to the inner diameter of the through hole 318. At the same time, the inner diameter of the through hole 318 is set larger than the inner diameter of the nail hole 302.

[0034] In addition, bearing seats 323 are fixedly provided at both ends of the upper surface of the pressure plate 316, a rotating shaft 324 is rotatably provided between the two bearing seats 323, a second motor 325 is connected to one end of the rotating shaft 324, and a cam block 326 in contact with the rectangular plate 321 is provided in the middle of the rotating shaft 324.

[0035] In the present embodiment 2, through the above improved design, after the nail hole 302 calenders the overlapped aluminum foil into the through hole 318 and rivets it into shape, the oblique end extrusion block 308 is first moved and reset by the driving mechanism, and the nail hole 302 is retracted and reset under the action of the first spring 306. Then, the second motor 325 is started to control the rotating shaft 324 to rotate one circle, and then the rectangular plate 321 is quickly pushed downward under the action of the cam block 326, so that the flattening column 322 enters the through hole 318 and flattens the riveting protrusion around the top of the nail hole 302, so that the surface of the riveted aluminum foil is automatically flattened, and the connection stability of the two aluminum foils is further improved, and at the same time, the aluminum foil at the riveted joint will not be affected in the subsequent traction process. Example 3

[0036] Example 3 discloses an automatic stable foil splicing device for electrode foil production that is improved based on the technical solution in Example 2. The similarities between the device and Example 2 are not described again.

[0037] In this embodiment 3, an automatic folding mechanism 7 before riveting is also provided in the machine base 1. Figure 3 , Attachment Figure 4 , Attachment Fig. 9 and attached Fig.10 The automatic folding mechanism 7 before riveting includes a moving frame 701 arranged in the machine base 1 and a horizontal track 702 fixed on the front and rear side walls of the machine base 1. A row of rollers 703 acting on the horizontal track 702 are arranged at both the front and rear ends of the moving frame 701, and a lifting device 704 is arranged in the middle of the moving frame 701. The lifting device 704 can also be a cylinder or a hydraulic cylinder, and a strip plate 705 is connected to the lower end of the lifting device 704, and then a row of suction cups 706 arranged along the width direction of the aluminum foil are arranged on the strip plate 705. At the same time, transmission wheels 707 are rotatably connected to both ends of the side wall of the base 1 below the horizontal track 702 on one side, and a third motor 708 is connected to the end of one of the transmission wheels 707, and then a transmission belt 709 is arranged between the two transmission wheels 707, and the transmission belt 709 and the movable frame 701 are fixedly connected by a connecting block 710, so that under the drive of the third motor 708, the movable frame 701 can move left and right along the horizontal track 702 and smoothly pass through the channel between the table plate 301 and the pressure plate 316.

[0038] In addition, a support plate 102 flush with the table 301 is fixedly arranged in the machine base 1 near the unloading mechanism 2, and a shovel plate 103 is rotatably arranged at one end of the support plate 102 near the unloading mechanism 2. The movable end of the shovel plate 103 is arranged as a thin blade end that fits the surface of the aluminum foil roll. During the rotation of the aluminum foil roll, the end of the aluminum foil roll can be shoveled up by the shovel plate 103, and then stretched along the shovel plate 103 to the surface of the support plate 102 and spread out flat, so as to facilitate the automatic folding mechanism 7 before riveting to grab it. Finally, in order to facilitate the control and adjustment of the shovel plate 103, a telescopic rod 104 is rotatably arranged in the machine base 1 below the shovel plate 103, and the movable end of the telescopic rod 104 is connected to the lower surface of the shovel plate 103.

[0039] According to the above design, when the new and old aluminum foils need to be connected, the traction is stopped when the tail end of the old aluminum foil is pulled to the position close to the foil connection mechanism 3, and then the third motor 708 is started to move the mobile frame 701 horizontally to the top of the support plate 102. After that, after the new aluminum foil coil is replaced, the end of the shovel plate 103 is attached to the surface of the aluminum foil coil by the telescopic rod 104, and then the aluminum foil coil is rotated to unload, and the end of the aluminum foil is shoveled up by the shovel plate 103, and the shovel plate 103 is extended to the surface of the support plate 102 and spread out. Next, the lifting device 704 is started to press down the suction cup 706 to grab the end of the new aluminum foil, and after grabbing, it moves back and passes through the channel between the table 301 and the pressure plate 316, and then the aluminum foil is put down to overlap with the tail of the old aluminum foil roll, and finally the foil connection mechanism 3 is started to rivet it first, and then it can be pulled normally after leveling.

[0040] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic stable foil splicing device for electrode foil production, comprising a machine base, a coil unloading mechanism and a guide roller are respectively arranged at both ends of the machine base, and a foil splicing mechanism is arranged in the middle of the machine base, characterized in that: The foil splicing mechanism comprises a table fixed in a machine base, a plurality of groups of nail holes are provided on the table, a U-shaped plate is connected to the lower end of the table, a guide hole aligned with the nail holes is provided on the U-shaped plate, a row of rivet nails are provided in each group of the nail holes, and a squeezing roller seat is commonly connected to the bottom of a row of rivet nails, a first spring is connected between the squeezing roller seat and the U-shaped plate, squeezing rollers are rotatably provided in the squeezing roller seats, and an oblique end squeezing block acting on the squeezing roller and a driving mechanism for driving the oblique end squeezing block to move horizontally are provided in the machine base; Convex plates extend outwardly at both ends of the table, and bevel correction strips are connected to the convex plates through guide bosses and a second spring, and the ends of the two bevel correction strips that are close to each other are vertical surfaces and are arranged above the upper surface of the table, and the upper ends of the bevel correction strips are arranged in a smooth bevel. A pressure plate and a downward pressing device for driving the pressure plate to move up and down are arranged directly above the table, and a through hole aligned with the nail hole is opened on the pressure plate, and bevel pressure strips facing downward and acting on the bevel correction strips are arranged at both ends of the pressure plate.

2. The automatic stable foil splicing device for electrode foil production according to claim 1, characterized in that: A rectangular groove is provided on the upper surface of the pressure plate, a rectangular plate is connected to the rectangular groove via a third spring, a flattening column aligned with each through hole is provided on the lower surface of the rectangular plate, the diameter of the flattening column is equal to the aperture of the through hole, and the aperture of the through hole is larger than the aperture of the nail hole, and a pressing mechanism for pressing the rectangular plate downward is provided on the pressure plate.

3. The automatic stable foil splicing device for electrode foil production according to claim 2, characterized in that: The pressing mechanism comprises bearing seats arranged at both ends of the pressing plate, a rotating shaft is rotatably arranged in the bearing seat, a cam block acting with the rectangular plate is arranged on the rotating shaft, and a second motor is connected to the end of the rotating shaft.

4. The automatic stable foil splicing device for electrode foil production according to claim 1, characterized in that: The machine base is provided with an automatic folding mechanism before riveting, and the automatic folding mechanism before riveting includes a horizontal track fixed on the side wall of the machine base and a movable frame moving along the horizontal track. The machine base is provided with a walking mechanism for driving the movable frame to move, and a lifting device is provided on the movable frame, and a suction cup assembly is connected to the lower end of the lifting device.

5. The automatic stable foil splicing device for electrode foil production according to claim 4, characterized in that: The walking mechanism includes transmission wheels arranged at both ends below the horizontal track, and a third motor is connected to the end of one of the transmission wheels. A transmission belt is arranged between the two transmission wheels, and the transmission belt is fixedly connected to the moving frame.

6. The automatic stable foil splicing device for electrode foil production according to claim 4 or 5, characterized in that: A support plate is arranged in the machine base near the unloading mechanism, and a shovel plate whose end acts on the surface of the aluminum foil roll is rotatably arranged at one end of the support plate near the unloading mechanism, and a telescopic rod for driving the shovel plate to rotate is arranged in the machine base.

7. The automatic stable foil splicing device for electrode foil production according to claim 1, characterized in that: The two ends of the oblique-end extrusion block are inclined and the middle is horizontal. The driving mechanism includes a screw rod and a horizontal sliding rod parallel to each other arranged in the machine base. One end of the screw rod is connected to a first motor. The oblique-end extrusion block is provided with a screw nut block and a sliding hole block that respectively act on the screw rod and the horizontal sliding rod.

8. The automatic stable foil splicing device for electrode foil production according to claim 1, characterized in that: The plurality of groups of nail holes are all arranged perpendicular to the pulling direction of the aluminum foil, and two adjacent groups of nail holes are arranged in a staggered manner in the pulling direction of the aluminum foil.

9. The automatic stable foil splicing device for electrode foil production according to claim 1, characterized in that: A top frame is arranged at the upper end of the machine base, the downward pressing and pushing device is arranged on the top frame, the pressing plate is connected to the lower end of the downward pressing and pushing device, and a vertical sliding rod penetrating the upper surface of the top frame is arranged on the pressing plate.

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