An electrode sheet cutting device for lithium battery production

Abstract

The present invention relates to the technical field of lithium battery production, and more specifically, to an electrode sheet slitting device for lithium battery production, which includes a fixed frame, support frames fixed on both sides of one end of the fixed frame, a loading roller detachably mounted between the two support frames, an electrode foil wrapped around the outside of the loading roller, a cutting roller rotatably connected to the top middle position of the inner side of the fixed frame, a slitting assembly provided at the top of the cutting roller for slitting the electrode foil, and a tensioning assembly provided between the loading roller and the cutting roller for tensioning and transmitting the electrode foil. The structural design of the slitting assembly allows for adjustment of the cutting width according to actual use requirements without the need for manual disassembly of the device, and the cutting width can be adjusted through the slitting assembly, thereby effectively improving the efficiency of slitting while reducing the labor intensity of workers.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery production, and in particular to an electrode sheet slitting device for lithium battery production. Background Art

[0002] Lithium battery is a battery that uses lithium metal or lithium alloy as the negative electrode material and a non-aqueous electrolyte solution. It has the characteristics of high energy, long life, low consumption, pollution-free, and no memory effect. The electrode sheet is an important component of the lithium battery.

[0003] At present, in the production and processing of lithium batteries, positive electrode sheets and negative electrode sheets need to be prepared first. The specific process is: corresponding positive electrode ingredients and negative electrode ingredients are prepared, and then the positive electrode ingredients and negative electrode ingredients are coated on the corresponding metal electrode foils on the electrode coating machine to prepare positive electrode sheets and negative electrode sheets; after the electrode sheets are prepared, they need to be cut into the required strips on the slitting device.

[0004] In actual use, the existing technology mostly uses a slitting knife installed on a rotating shaft to cut the electrode sheet. However, when it is necessary to cut electrode sheets of different widths, the rotating shaft must be disassembled to adjust the distance between the slitting knives. However, this method is inefficient, affects production efficiency, and increases labor intensity.

[0005] Based on this, the present invention discloses an electrode sheet slitting device for lithium battery production. Summary of the Invention

[0006] In order to solve the problem raised in the background technology, in actual use, the existing technology mostly uses a slitting knife installed on a rotating shaft to cut the electrode sheet. However, when it is necessary to cut electrode sheets of different widths, the rotating shaft must be disassembled to adjust the distance between the slitting knives. However, this method is inefficient, affects production efficiency, and increases labor intensity. The present invention provides an electrode sheet slitting device for lithium battery production, which includes a fixed frame, support frames are fixed on both sides of one end of the fixed frame, a loading roller is detachably installed at a position between the two support frames, an electrode foil is wound around the outside of the loading roller, a cutting roller is rotatably connected at the top middle position of the inner side of the fixed frame, a slitting assembly is provided at the top of the cutting roller for slitting the electrode foil, a tensioning assembly is provided between the loading roller and the cutting roller for tensioning and transmitting the electrode foil, and a winding assembly is provided at an end of the fixed frame away from the loading roller and at a position corresponding to the cutting roller for winding the cut electrode foil.

[0007] As a further improvement of the present technical solution, the tensioning assembly includes two material guide rollers, which are symmetrically arranged on the inner side of the fixed frame and close to one end of the loading roller. The material guide rollers are rotatably connected to the fixed frame, and the upper and lower ends of the electrode foil are respectively fitted with the upper and lower ends of the two material guide rollers. A first tensioning roller is rotatably connected to the inner side of the fixed frame and close to the cutting roller, and the top of the electrode foil is fitted with the lower end face of the first tensioning roller. A second tensioning roller is rotatably connected to the end of the fixed frame away from the loading roller and close to the cutting roller, and the lower end face of the second tensioning roller is fitted with the top of the electrode foil after cutting.

[0008] As a further improvement of the present technical solution, the slitting assembly includes a guide rod, which is fixed at the inner top end of the fixed frame and located above the cutting roller. The outer side of the guide rod is evenly slidably connected to multiple fixed seats, a fixed rod is fixed at the top end of the fixed seat, a connecting seat is provided at the lower end of the fixed seat, a cutting motor is fixed to one side of the connecting seat, a cutting knife is fixed to the output end of the cutting motor, the output end of the cutting motor is rotatably connected to the connecting seat, and an adjustment assembly is provided above the fixed seat.

[0009] As a further improvement of the present technical solution, the adjustment assembly includes an adjustment plate, which is arranged at a position above the guide rod, and fixed plates are fixed at both ends of the adjustment plate. A plurality of adjustment slots are evenly opened on the inner side of the adjustment plate, and the plurality of fixed rods are respectively slidably connected to the adjustment plate through the corresponding adjustment slots. A limiting plate is fixed to the top end of the fixed rod, and a driving assembly is provided on both sides of the fixed frame and at positions corresponding to the fixed plate.

[0010] As a further improvement of the present technical solution, the driving assembly includes a movable seat, which is arranged at the inner position on both sides of the fixed frame, the movable seat is slidably connected to the fixed frame, the movable seat is fixedly connected to the fixed plate, and an adjusting motor is fixed at the inner side of both sides of the fixed frame and at a position corresponding to the movable seat, an adjusting screw is fixed to the output end of the adjusting motor, the adjusting screw is threadedly connected to the movable seat, the inner side of the top end of the movable seat is slidably connected to a limiting screw, and the limiting screw is fixedly connected to the fixed frame.

[0011] As a further improvement of the present technical solution, a plug-in block is fixed to the top of the connecting seat, and a connecting groove is provided at the lower end of the fixing seat and at a position corresponding to the plug-in block. The plug-in block is plug-connected to the fixing seat through the connecting groove, and a connecting bolt is provided at a position between the plug-in block and the fixing seat, and the plug-in block and the fixing seat are fixedly connected by the connecting bolt.

[0012] As a further improvement of the present technical solution, the winding assembly includes a second winding roller, which is arranged at the top end of the fixed frame away from the loading roller, and the second winding roller is rotatably connected to the fixed frame. A plurality of partition plates are evenly arranged on the outside of the second winding roller, and the partition plates are slidingly connected to the second winding roller. A first winding roller is arranged below the second winding roller and close to the cutting roller, and the first winding roller is rotatably connected to the fixed frame.

[0013] As a further improvement of the present technical solution, a connecting rod is fixed to the top of the limiting plate, a positioning frame is fixed to the end of the connecting rod away from the limiting plate, positioning rods are fixed on the inner sides of both sides of the positioning frame, and positioning rollers are fixed to the ends of the two positioning rods close to each other, and the positioning rollers are rollingly connected to the partition plate.

[0014] As a further improvement of the present technical solution, a fixed slide rod is fixed to the top of the end of the fixed frame away from the loading roller, and a moving block is slidably connected to the outer side of the fixed slide rod. Two connecting frames are rotatably connected to both sides of the lower end of the moving block, and a torsion spring is provided at the position where the connecting frame is connected to the moving block. A pressure roller is provided at the position between the two connecting frames away from the moving block, and the pressure roller is rotatably connected to the connecting frame.

[0015] As a further improvement of the present technical solution, a spring telescopic rod is fixed on the side of the moving block close to the connecting rod, and the telescopic ends of both ends of the spring telescopic rod are fixed with fixing rings, which are sleeved on the outside of the connecting rod and fixedly connected to the connecting rod.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In this electrode sheet slitting equipment for lithium battery production, the structural design of the slitting assembly makes it possible to adjust the cutting width according to actual usage requirements without manually disassembling the device. The cutting width can be adjusted through the slitting assembly, thereby effectively improving the slitting work efficiency and reducing the labor intensity of workers.

[0018] 2. In this electrode sheet slitting equipment for lithium battery production, the structural design of the winding component enables the electrode sheet with adjusted width to be wound in real time after cutting in conjunction with the slitting component, thus avoiding uneven winding during the winding process and affecting subsequent processing steps. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a structural schematic diagram of the guide roller and the first tensioning roller of the present invention;

[0021] Figure 3 It is a structural schematic diagram of the winding assembly of the present invention;

[0022] Figure 4 It is a structural schematic diagram of the slitting assembly of the present invention;

[0023] Figure 5 It is a structural schematic diagram of the connecting bolt and the plug-in block of the present invention;

[0024] Figure 6 It is a structural schematic diagram of the adjustment plate of the present invention;

[0025] Figure 7 Schematic diagram of the structure of the partition plate of the present invention;

[0026] Figure 8 For the present invention Figure 7 Enlarged view of point A in the middle;

[0027] Figure 9 It is a structural schematic diagram of the fixed sliding rod and the moving block of the present invention;

[0028] Figure 10 It is a structural schematic diagram of the pressing roller and the spring telescopic rod of the present invention.

[0029] The meaning of each number in the figure is:

[0030] 1. Fixed frame; 2. Feeding roller; 3. Support frame; 4. Electrode foil; 5. Guide roller; 6. First tensioning roller; 7. Cutting roller; 8. First winding roller; 9. Second tensioning roller; 10. Second winding roller; 11. Adjustment plate; 12. Fixed plate; 13. Adjustment slot; 14. Fixed seat; 15. Connecting seat; 16. Cutting motor; 17. Cutting knife; 18. Guide rod; 19. Adjustment motor; 20. Moving seat; 21. Adjustment screw; 22. Limit screw; 23. Limit plate; 24. Connecting rod; 25. Fixed rod; 26. Plug-in block; 27. Connecting slot; 28. Connecting bolt; 29. Partition plate; 30. Positioning frame; 31. Positioning rod; 32. Positioning roller; 33. Fixed slide bar; 34. Moving block; 35. Spring telescopic rod; 36. Fixed ring; 37. Connecting frame; 38. Pressing roller. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] In actual use, the existing technology mostly uses a slitting knife installed on a rotating shaft to cut the electrode sheet. However, when it is necessary to cut electrode sheets of different widths, the rotating shaft must be disassembled to adjust the distance between the slitting knives. However, this method is inefficient, affects production efficiency, and increases labor intensity.

[0033] To this end, the present invention provides an electrode sheet cutting device for lithium battery production, see Figures 1-10 The cam 2 is provided with a plurality of support rollers 3, and the support rollers 3 are provided with a plurality of support rollers 3. The support rollers 3 are provided with a plurality of support rollers 3. The support rollers 3 are provided with a plurality of support rollers 3. The support rollers 3 are provided with a plurality of support rollers 3. The support rollers 3 are provided with a plurality of support rollers 3. The support rollers 3 are provided with a plurality of support rollers 3. The support rollers 3 are provided with a plurality of support rollers 3. The support rollers 3 are provided with a plurality of support rollers 3. The support rollers 3 are provided with a plurality of support rollers 3. Through the design of the two guide rollers 5, the electrode foil 4 can be positioned and pressed to prevent the electrode foil 4 from being offset, and at the same time, loading is facilitated. The two guide rollers 5 are symmetrically arranged on the inner side of the fixed frame 1 and close to one end of the loading roller 2. The guide roller 5 is rotatably connected to the fixed frame 1, and the upper and lower ends of the electrode foil 4 are respectively fitted with the upper and lower ends of the two guide rollers 5. The first tensioning roller 6 is rotatably connected to the inner side of the fixed frame 1 and close to the cutting roller 7. Through the structural design of the first tensioning roller 6, the electrode foil 4 can be tensioned, thereby preventing the electrode foil 4 from becoming loose during the loading process, resulting in uneven cutting. The top of the electrode foil 4 is fitted with the lower end surface of the first tensioning roller 6, and the fixed frame 1 is rotatably connected to the end away from the loading roller 2 and close to the cutting roller 7 with a second tensioning roller 9. The second tensioning roller 9 and the lower end surface are fitted with the top of the electrode foil 4 after cutting.

[0034] The slitting assembly includes a guide rod 18, which is fixed to the top inner side of the fixed frame 1 and is located above the cutting roller 7. The outer side of the guide rod 18 is evenly slidably connected with a plurality of fixed seats 14. The top of the fixed seat 14 is fixed with a fixing rod 25, and the lower end of the fixed seat 14 is provided with a connecting seat 15; the top of the connecting seat 15 is fixed with a plug-in block 26, and the lower end of the fixed seat 14 and the position corresponding to the plug-in block 26 are provided with a connecting groove 27, and the plug-in block 26 is plugged and connected to the fixed seat 14 through the connecting groove 27, and a connecting bolt 28 is provided at the position between the plug-in block 26 and the fixed seat 14, and the plug-in block 26 is fixedly connected to the fixed seat 14 by the connecting bolt 28; a cutting motor 16 is fixed to one side of the connecting seat 15, and a cutting knife 17 is fixed to the output end of the cutting motor 16. The output end of the cutting motor 16 is rotatably connected to the connecting seat 15, and a connecting groove 27 is provided above the fixed seat 14. There is an adjustment component, which makes it easy to connect the connecting seat 15 and the cutting motor 16 to the fixed seat 14 through the structural design of the plug-in block 26 and the connecting bolt 28, so that when the cutting motor 16 and the cutting knife 17 need to be replaced, they can be easily and quickly disassembled; the adjustment component includes an adjustment plate 11, which is arranged at a position above the guide rod 18, and a fixing plate 12 is fixed at both ends of the adjustment plate 11. A plurality of adjustment slots 13 are evenly opened on the inner side of the adjustment plate 11, and a plurality of fixing rods 25 are respectively slidably connected to the adjustment plate 11 through the corresponding adjustment slots 13. Through the structural design of the adjustment plate 11 and the adjustment slot 13, when the adjustment plate 11 moves, the fixing seat 14 can be driven to move by the fixing rod 25. The top of the fixing rod 25 is fixed with a limit plate 23, and a driving component is provided at the position corresponding to the fixing plate 12 on both sides of the fixed frame 1;

[0035] The driving assembly includes a moving seat 20, which is arranged at the inner position on both sides of the fixed frame 1, and the moving seat 20 is slidably connected to the fixed frame 1, and the moving seat 20 is fixedly connected to the fixed plate 12, so that when the moving seat 20 moves, the adjusting plate 11 can be driven to move by the fixed plate 12. An adjusting motor 19 is fixed at the inner side of both sides of the fixed frame 1 and at a position corresponding to the moving seat 20, and an adjusting screw 21 is fixed to the output end of the adjusting motor 19. In order to facilitate the movement of the moving seat 20 along the axial direction of the adjusting screw 21 when the adjusting motor 19 drives the adjusting screw 21 to rotate, the adjusting screw 21 is threadedly connected to the moving seat 20, and the inner side of the top of the moving seat 20 is slidably connected to the limiting screw 22, and the limiting screw 22 is fixedly connected to the fixed frame 1.

[0036] During operation, the electrode foil 4 wound on the outside of the feeding roller 2 is first passed through between the two guide rollers 5 and the lower side of the first tensioning roller 6 in sequence, and then passes through the top of the cutting roller 7. When slitting, the guide roller 5 and the cutting roller 7 are rotated by the external driving mechanism, so that the electrode foil 4 is fed and transported, and the cutting motor 16 is started at the same time, so that the cutting motor 16 drives the cutting knife 17 to rotate. When the cutting knife 17 rotates, the electrode foil 4 is cut, and the cut electrode foil 4 is wound through the winding device. When the distance between the two adjacent cutting knives 17 needs to be adjusted, the adjusting motor 19 is first started, so that the adjusting motor 19 drives the adjusting screw 21 to rotate. When the adjusting screw 21 rotates, it drives The movable seat 20 threadedly connected to it moves along the axial direction of the adjusting screw 21. When the adjusting screw 21 moves, the adjusting plate 11 is driven to move at the same time through the fixed plate 12. Because the fixed seat 14 is limited in the direction of the guide rod 18, when the adjusting plate 11 moves, the fixed rod 25 and the fixed seat 14 fixed to the fixed rod 25 are driven to move along the axial direction of the guide rod 18 through the adjusting slot 13. Therefore, when the fixed seat 14 moves, it can drive the cutting motor 16 and the cutting knife 17 to move simultaneously through the connecting seat 15, thereby completing the adjustment. When the cutting motor 16 and the cutting knife 17 need to be replaced, the cutting motor 16 and the cutting knife 17 can be disassembled by separating the connecting bolt 28 from the plug-in block 26 and the connecting seat 15.

[0037] For details, see Figure 3 、 Figure 7 and Figure 8 As shown, the winding assembly includes a second winding roller 10, which is arranged at the top position of one end of the fixed frame 1 away from the feeding roller 2. Through the structural design of the second winding roller 10, the electrode foil 4 required after cutting can be wound up, and the second winding roller 10 is rotatably connected to the fixed frame 1. A plurality of partition plates 29 are evenly arranged on the outside of the second winding roller 10, and the partition plates 29 are slidably connected to the second winding roller 10. Through the structural design of the partition plates 29, the cut electrode foil 4 can be limited to avoid deviation in winding and affecting subsequent processing. A first winding roller 8 is provided below the second winding roller 10 and near the cutting roller 7. The first winding roller 8 is rotatably connected to the fixed frame 1. Through the structural design of the first winding roller 8, the remaining electrode foil 4 after cutting can be wound up, which is convenient for subsequent use. During winding, the first winding roller 8 and the second winding roller 10 can be connected to an external motor so that the second winding roller 10 and the first winding roller 8 rotate to facilitate winding.

[0038] During operation, when winding, the second winding roller 10 and the first winding roller 8 are first connected to the external drive device, so that the first winding roller 8 and the second winding roller 10 rotate, and the cut electrode foil 4 will first be tensioned by the lower end of the second tensioning roller 9, and then wound through the top end of the second winding roller 10. The remaining electrode foil 4 will be directly wound to the outside of the first winding roller 8 after being cut.

[0039] For further information, see Figure 7 and Figure 8 As shown, a connecting rod 24 is fixed to the top of the limiting plate 23, and a positioning frame 30 is fixed to the end of the connecting rod 24 away from the limiting plate 23, so that when the fixing rod 25 moves, the connecting rod 24 and the positioning frame 30 can be driven to move through the limiting plate 23, and positioning rods 31 are fixed on the inner sides of both sides of the positioning frame 30, and positioning rollers 32 are fixed on the ends of the two positioning rods 31 close to each other. The positioning rollers 32 are rollingly connected to the partition plate 29, and then when the positioning frame 30 moves, it can drive the partition plate 29 to move along the axial direction of the second winding roller 10.

[0040] During operation, when the cutting knife 17 is adjusted, the adjustment plate 11 moves to drive the fixed rod 25 and the limit plate 23 to move at the same time. When the limit plate 23 moves, the positioning frame 30 is driven to move at the same time through the connecting rod 24. When the positioning frame 30 moves, the partition plate 29 is driven to slide along the outside of the second winding roller 10 under the action of the two positioning rods 31 and the positioning roller 32. Therefore, when the cutting knife 17 is adjusted, the partition plate 29 can be driven to move at the same time, so that the distance between the two partition plates 29 can be adjusted conveniently according to the width of the electrode foil 4 after cutting.

[0041] Among them, see Figure 9 and Figure 10As shown, a fixed slide bar 33 is fixed to the top of one end of the fixed frame 1 away from the feeding roller 2, and a moving block 34 is slidably connected to the outer side of the fixed slide bar 33. In order to facilitate the movement of the moving block 34 when the connecting rod 24 moves, the moving block 34 can be located in the middle of the two connecting rods 24. Both sides of the lower end of the moving block 34 are rotatably connected to two connecting frames 37. A torsion spring is provided at the position where the connecting frame 37 is connected to the moving block 34, thereby ensuring that the pressing roller 38 can continuously apply pressure to the second winding roller 10. In order to facilitate the winding of the electrode foil 4, the electrode foil 4 can be pressed tightly to avoid the problem of winding. To loosen, a clamping roller 38 is provided between the two connecting frames 37 at one end away from the moving block 34, and the clamping roller 38 is rotatably connected to the connecting frame 37; in order to facilitate the movement of the moving block 34 when the connecting rod 24 moves while ensuring that the moving block 34 is located between the two adjacent connecting rods 24, so as to facilitate the compression and winding of the electrode foil 4, a spring telescopic rod 35 is fixed on the side of the moving block 34 close to the connecting rod 24, and the telescopic ends of both ends of the spring telescopic rod 35 are fixed with fixed rings 36, which are sleeved on the outside of the connecting rod 24 and fixedly connected to the connecting rod 24.

[0042] During operation, when the connecting rod 24 moves, the telescopic end of the spring telescopic rod 35 will be extended through the fixed ring 36, and the spring inside the spring telescopic rod 35 can ensure that the spring telescopic rod 35 is located in the middle of the two connecting rods 24, thereby ensuring that the moving block 34, the connecting frame 37 and the clamping roller 38 can apply pressure to the middle position of the electrode foil 4, thereby ensuring the quality of winding.

[0043] In summary, the problem of the existing technology in actual use is effectively solved, because its cutting method is mostly to cut the electrode sheet through the slitting knife installed on the rotating shaft, but when electrode sheets of different widths need to be cut, the rotating shaft must be disassembled to adjust the distance between the slitting knives. However, this method is inefficient, affects production efficiency, and increases labor intensity.

[0044] Working principle:

[0045] During operation, the electrode foil 4 wound on the outside of the feeding roller 2 is first passed through between the two guide rollers 5 and the lower side of the first tensioning roller 6 in sequence, and then passes through the top of the cutting roller 7. When slitting, the guide roller 5 and the cutting roller 7 are rotated by an external driving mechanism, so that the electrode foil 4 is fed and transported, and the cutting motor 16 is started at the same time, so that the cutting motor 16 drives the cutting knife 17 to rotate. When the cutting knife 17 rotates, the electrode foil 4 is cut, and the cut electrode foil 4 is wound through the winding device. When the distance between two adjacent cutting knives 17 needs to be adjusted, the adjusting motor 19 is first started, so that the adjusting motor 19 drives the adjusting screw 21 to rotate. When When the adjusting screw 21 rotates, it drives the movable seat 20 threadedly connected thereto to move along the axial direction of the adjusting screw 21. When the adjusting screw 21 moves, the adjusting plate 11 is driven to move at the same time through the fixing plate 12. Because the fixing seat 14 is limited in the direction of the guide rod 18, when the adjusting plate 11 moves, it drives the fixing rod 25 and the fixing seat 14 fixed to the fixing rod 25 to move along the axial direction of the guide rod 18 through the adjusting slot 13. Therefore, when the fixing seat 14 moves, it can drive the cutting motor 16 and the cutting knife 17 to move simultaneously through the connecting seat 15, thereby completing the adjustment. When the cutting motor 16 and the cutting knife 17 need to be replaced, the connecting bolt 28 can be separated from the plug-in block 26 and the connecting seat 15. When the electrode foil is cut, the electrode foil 4 is first tensioned by the lower end of the second tensioning roller 9 and then wound up by the top end of the second winding roller 10. The remaining electrode foil 4 is directly wound up to the outside of the first winding roller 8 after being cut. When the connecting rod 24 moves, the telescopic end of the spring telescopic rod 35 is extended through the fixing ring 36, and the spring inside the spring telescopic rod 35 can ensure that the spring telescopic rod 35 is located between the two connecting rods 24. , thereby ensuring that the moving block 34, the connecting frame 37 and the pressing roller 38 can apply pressure to the middle position of the electrode foil 4, thereby ensuring the quality of winding; when the cutting knife 17 is adjusted, the adjusting plate 11 moves to drive the fixed rod 25 and the limit plate 23 to move at the same time, and when the limit plate 23 moves, the positioning frame 30 is driven to move at the same time through the connecting rod 24, and when the positioning frame 30 moves, it drives the partition plate 29 to slide along the outer side of the second winding roller 10 under the action of the two positioning rods 31 and the positioning roller 32, so that when the cutting knife 17 is adjusted, the partition plate 29 can be driven to move at the same time, so that the distance between the two partition plates 29 can be adjusted according to the width of the electrode foil 4 after cutting.

[0046] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0047] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An electrode sheet slitting device for lithium battery production, characterized by: The invention comprises a fixed frame (1), support frames (3) are fixed on both sides of one end of the fixed frame (1), a feeding roller (2) is detachably mounted at a position between the two support frames (3), an electrode foil (4) is wound around the outer side of the feeding roller (2), a cutting roller (7) is rotatably connected at the top position of the middle inner side of the fixed frame (1), a slitting assembly is provided at the top end of the cutting roller (7) for slitting the electrode foil (4), a tensioning assembly is provided at a position between the feeding roller (2) and the cutting roller (7) for tensioning and transmitting the electrode foil (4), and a winding assembly is provided at a position of the fixed frame (1) away from the feeding roller (2) and corresponding to the cutting roller (7) for winding the cut electrode foil (4); The slitting assembly comprises a guide rod (18), the guide rod (18) being fixed to the inner top end of the fixed frame (1) and being located above the cutting roller (7), the outer side of the guide rod (18) being evenly slidably connected to a plurality of fixed seats (14), the top end of the fixed seat (14) being fixed with a fixed rod (25), the lower end of the fixed seat (14) being provided with a connecting seat (15), a cutting motor (16) being fixed to one side of the connecting seat (15), a cutting blade (17) being fixed to the output end of the cutting motor (16), and the output end of the cutting motor (16) being connected to the cutting blade (17). The connecting seat (15) is rotatably connected, an adjustment component is provided at an upper position of the fixing seat (14), a plug-in block (26) is fixed at the top of the connecting seat (15), a connecting groove (27) is provided at a lower end of the fixing seat (14) and at a position corresponding to the plug-in block (26), the plug-in block (26) is plug-connected to the fixing seat (14) through the connecting groove (27), a connecting bolt (28) is provided at a position between the plug-in block (26) and the fixing seat (14), and the plug-in block (26) and the fixing seat (14) are fixedly connected through the connecting bolt (28); The adjustment assembly includes an adjustment plate (11), the adjustment plate (11) is arranged at an upper position of the guide rod (18), fixed plates (12) are fixed at both ends of the adjustment plate (11), a plurality of adjustment slots (13) are evenly opened on the inner side of the adjustment plate (11), a plurality of fixed rods (25) are respectively slidably connected to the adjustment plate (11) through the corresponding adjustment slots (13), the top of the fixed rod (25) is fixed with a limit plate (23), and a driving assembly is provided on both sides of the fixed frame (1) and at positions corresponding to the fixed plates (12); The driving assembly comprises a moving seat (20), the moving seat (20) being arranged at inner positions on both sides of the fixed frame (1), the moving seat (20) being slidably connected to the fixed frame (1), the moving seat (20) being fixedly connected to the fixed plate (12), an adjusting motor (19) being fixed at positions corresponding to the moving seat (20) on the inner sides of both sides of the fixed frame (1), an adjusting screw (21) being fixed at the output end of the adjusting motor (19), the adjusting screw (21) being threadedly connected to the moving seat (20), and the moving seat (20) being fixedly connected to the fixed plate (12). The inner side of the top end of the movable seat (20) is slidably connected to a limiting screw (22), and the limiting screw (22) is fixedly connected to the fixed frame (1); the top end of the limiting plate (23) is fixed with a connecting rod (24), and the end of the connecting rod (24) away from the limiting plate (23) is fixed with a positioning frame (30), and the inner sides of both sides of the positioning frame (30) are fixed with positioning rods (31), and the ends of the two positioning rods (31) close to each other are fixed with positioning rollers (32), and the positioning rollers (32) are rollingly connected to the partition plate (29); The winding assembly includes a second winding roller (10), the second winding roller (10) is arranged at the top end of the fixed frame (1) away from the feeding roller (2), the second winding roller (10) is rotatably connected to the fixed frame (1), a plurality of partition plates (29) are evenly arranged on the outside of the second winding roller (10), the partition plates (29) are slidably connected to the second winding roller (10), a first winding roller (8) is arranged below the second winding roller (10) and near the cutting roller (7), the first winding roller (8) is rotatably connected to the fixed frame (1), a fixed slide bar (33) is fixed to the top end of the fixed frame (1) away from the feeding roller (2), the outside of the fixed slide bar (33) A moving block (34) is slidably connected, and two connecting frames (37) are rotatably connected on both sides of the lower end of the moving block (34). A torsion spring is provided at the position where the connecting frame (37) is connected to the moving block (34). A pressing roller (38) is provided at a position between the two ends of the connecting frames (37) away from the moving block (34). The pressing roller (38) is rotatably connected to the connecting frame (37). A spring telescopic rod (35) is fixed on the side of the moving block (34) close to the connecting rod (24). The telescopic ends of both ends of the spring telescopic rod (35) are fixed with fixed rings (36). The fixed ring (36) is sleeved on the outside of the connecting rod (24), and the fixed ring (36) is fixedly connected to the connecting rod (24).

2. The electrode sheet slitting equipment for lithium battery production according to claim 1, characterized in that: The tensioning assembly comprises two guide rollers (5), the two guide rollers (5) are symmetrically arranged on the inner side of the fixed frame (1) and at one end position close to the feeding roller (2), the guide rollers (5) are rotatably connected to the fixed frame (1), the upper and lower ends of the electrode foil (4) are respectively fitted with the upper and lower ends of the two guide rollers (5), the first tensioning roller (6) is rotatably connected to the inner side of the fixed frame (1) and at a position close to the cutting roller (7), the top end of the electrode foil (4) is fitted with the lower end surface of the first tensioning roller (6), the second tensioning roller (9) is rotatably connected to one end of the fixed frame (1) away from the feeding roller (2) and at a position close to the cutting roller (7), the lower end surface of the second tensioning roller (9) is fitted with the top end of the electrode foil (4) after cutting.

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