A cutting device and method for battery pole pieces

Abstract

The present invention relates to the technical field of battery pole piece manufacturing, and in particular to a slitting device and method for battery pole pieces. In view of the problems that existing equipment is not conducive to installation and maintenance and has poor adjustment flexibility, a slitting device for battery pole pieces is provided, including an operating table, side supports are respectively provided on both sides of the upper end of the bottom plate, a rotatable transmission roller is provided on the inner side of the two side supports, a lifting and lowering horizontal knife holder is provided on the upper end of the two side supports, a plurality of detachable mounting seats are provided on the horizontal knife holder, a rotatable slitting knife is provided at the front end of the mounting seat, and an adjusting device is also provided at the front end of the mounting seat, the adjusting device includes a rotatable second threaded rod, and when the second threaded rod is rotated, a structure can be formed in which the slitting knife moves to the left or right; the transmission structure can be independently disassembled, which is convenient for installation and later maintenance, and the knife holder and the slitting knife can be adjusted with multiple degrees of freedom.

Description

Technical Field

[0001] The present invention relates to the technical field of battery pole piece manufacturing, and in particular to a slitting device and method for battery pole pieces. Background Art

[0002] Battery pole pieces are an important core part of the battery, which are divided into positive pole pieces and negative pole pieces. During production, the lithium battery foil needs to be pre-cut into the required shape. Pre-cutting is mainly used for pre-cutting of long-endurance, large-width lithium battery foil. After the coating process product is rolled and stretched, the large area of ​​material is cut into the required shape. Currently, the existing pre-slitting machines still have many defects, such as: 1. The existing transmission structure is wide and not conducive to installation and maintenance; 2. The knife holder adjustment is relatively simple and the adjustment flexibility is not high; 3. During the use of the existing slitting knife, the upper and lower knives are fixed as a whole and cannot be adjusted; for this reason, a slitting device for battery pole pieces is designed to solve the above-mentioned problems. Summary of the invention

[0003] In view of the problems that existing equipment is not conducive to installation and maintenance and has poor adjustment flexibility, the present invention provides a slitting device for battery pole pieces, which can independently split each transmission structure to facilitate installation and later maintenance, and can adjust the tool holder and slitting knife with multiple degrees of freedom, effectively solving the problems mentioned in the above background technology.

[0004] In order to solve the above problems, the technical solution adopted by the present invention is:

[0005] A slitting device for battery pole pieces, comprising a bottom plate, side supports are respectively arranged on both sides of the upper end of the bottom plate, a rotatable transmission roller is arranged inside the two side supports, a lifting and lowering cross-knife frame is arranged on the upper end of the two side supports, a plurality of detachable mounting seats are arranged on the cross-knife frame, a rotatable slitting knife is arranged at the front end of the mounting seat, and an adjusting device is also arranged at the front end of the mounting seat, the adjusting device comprises a rotatable second threaded rod, and when the second threaded rod rotates, a structure can be formed in which the slitting knife moves leftward or rightward

[0006] The left and right sides of the upper end surface of the side support are respectively fixed with side frames, the cross-blade holder is slidably connected to the inner walls of the two side frames, the rear end surfaces of the side frames are also respectively fixed with second motors, the output ends of the second motors are respectively fixed with first threaded rods, and the cross-blade holder is threadedly connected to the outer surfaces of the two first threaded rods.

[0007] The front end surface of the mounting seat is fixedly connected to the third motor, the second threaded rod is fixedly connected to the corresponding output end of the third motor, the front end of the mounting seat is provided with a sleeve box, the lower end of the sleeve box is provided with a drive box, the slitting knife is installed on one side of the drive box, and the front and rear sides of the upper end of the sleeve box are provided with incomplete threaded seats matching the second threaded rod.

[0008] The front and rear sides of the upper end surface of the sleeve box are respectively fixed with spring seats, the inner end surfaces of the two spring seats are respectively fixed with first springs, the incomplete threaded seats are respectively fixed to the corresponding inner ends of the first springs, and the incomplete threaded seats are respectively slidably connected to the upper end surface of the sleeve box.

[0009] The upper ends of the driving boxes are respectively provided with extension seats, which are slidably connected to the inner walls of the sleeve boxes, and horizontal sliders are fixedly connected to one side end surfaces of the extension seats, and the front end surfaces of the mounting seats are respectively slidably connected to horizontal rails, and the horizontal sliders are respectively slidably connected to the corresponding horizontal rails, and the upper end surfaces of the horizontal rails are respectively fixedly connected to vertical plates, and the mounting seats are also respectively provided with centrifugal devices that match the vertical plates, and the centrifugal devices are respectively connected to the second threaded rods, and when the second threaded rods rotate, a structure can be formed in which the centrifugal device works to move the vertical plates and the slitting knife upwards.

[0010] The centrifugal devices respectively include an extension shaft fixedly connected to the second threaded rod, a connecting pad that can move left and right is respectively sleeved on the outer surface of the extension shaft, a connecting seat slidably connected to the mounting seat is rotatably connected to the outer surface of the connecting pad, a connecting rod is respectively fixedly connected to the end surface of one side of the connecting seat, a first sliding pin is respectively fixedly connected to the inner wall of the connecting rod, and a track groove matching the first sliding pin is respectively opened on the vertical plate.

[0011] The outer surface of the extension shaft is respectively sleeved with a first tension spring that matches the connecting pad, and the left end surface of the connecting pad is respectively hinged with a plurality of evenly distributed long connecting rods. The outer surface of the extension shaft is also respectively fixed with a centrifugal disk, and the inner wall of the centrifugal disk is respectively slidably connected with a plurality of evenly distributed sliding seats, and the long connecting rods are respectively hinged on the corresponding sliding seats, and the right end of the sliding seat is respectively fixed with a centrifugal ball.

[0012] The front end surface of the mounting seat is also fixedly connected to a tension spring seat, one side end surface of the tension spring seat is fixedly connected to a second tension spring, the other end of the second tension spring is fixedly connected to the corresponding sleeve box, the upper end of the incomplete threaded seat is provided with a long pin, the front side of the upper end surface of the horizontal knife holder is provided with two movable linkage frames, and the linkage frames are respectively provided with long grooves matching the long pins.

[0013] A first motor is fixedly connected to the middle part of the upper end surface of the base plate, a disc is fixedly connected to the output end of the first motor, a short pin is fixedly connected to the non-center part of the upper end surface of the disc, a box is fixedly connected to the inner walls of the two side supports, a scraper matching with the transmission roller is fixedly connected to the inner wall of the box, a material guide plate matching with the box is slidably connected to the upper end surface of the base plate, a long key plate matching with the short pin is fixedly connected to the middle part of the lower end surface of the material guide plate, and collection boxes matching with the material guide plate are respectively placed on the left and right sides of the upper end surface of the base plate.

[0014] A method for using a cutting device for a battery electrode sheet comprises the following steps:

[0015] S1, placing the lithium foil to be cut between the transmission roller and the cutting knife, and when the transmission roller and the cutting knife rotate, the lithium foil can be cut;

[0016] S2. When the slitting width needs to be changed, the slitting knife can be moved to the left or right to a specified position through the rotatable second threaded rod, and the required slitting width can be obtained when the slitting knife continues to rotate.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] When the cross-knife frame is raised and lowered, the upper and lower coordinate positions of the slitting knife can be adjusted. The mounting seat is fixed to the cross-knife frame by bolts, and the mounting seat, the slitting knife, etc. can be independently disassembled, which is convenient for installation and maintenance, reduces space occupation, reduces energy consumption, shortens the time for changing models, and improves production efficiency. Through the provided adjustment device, the left and right coordinate positions of the slitting knife can be adjusted, that is, it can be adjusted according to the pre-slitting requirements, and the left and right process width dimensions can be adjusted independently. The slitting knife can rotate, and a plurality of knife grooves matching the slitting knife are provided on the outer surface of the transmission roller. By passing the lithium battery foil between the slitting knife and the transmission roller, the lithium battery foil can be slid under the cooperation of the slitting knife and the knife groove. The device has a reduced structural space, is convenient for installation and maintenance, has a simple structure, saves materials and reduces energy consumption, solves the problem that the wide-width pre-slitting integrated machine of the foil is difficult to adjust, can be independently disassembled for fast knife and mold change, shortens the time for changing models, and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a first isometric view of a slitting device for battery pole pieces according to the present invention.

[0020] Figure 2 This is a second isometric view of a slitting device for battery pole pieces according to the present invention.

[0021] Figure 3 The present invention is a schematic diagram of the installation of a drive roller of a slitting device for battery pole pieces.

[0022] Figure 4 The present invention is a schematic diagram of the installation of a guide plate of a slitting device for battery pole pieces.

[0023] Figure 5 The present invention is a schematic diagram of the installation of a disc of a slitting device for battery pole pieces.

[0024] Figure 6 The present invention is a schematic diagram of the installation of a linkage frame of a cutting device for battery pole pieces.

[0025] Figure 7 The present invention is a schematic diagram of the installation of a horizontal blade holder of a battery electrode cutting device.

[0026] Figure 8 It is a schematic diagram of the installation of the second threaded rod of a slitting device for battery pole pieces of the present invention.

[0027] Fig. 9 The present invention is a schematic diagram of the installation of an incomplete threaded seat of a slitting device for battery pole pieces.

[0028] Fig.10 The present invention is a schematic diagram of the installation of a vertical plate of a cutting device for battery pole pieces.

[0029] Fig.11 The present invention is a schematic diagram of the installation of a first sliding pin of a slitting device for battery pole pieces.

[0030] Fig.12 The invention is a schematic diagram of the installation of a centrifugal disk of a slitting device for battery pole pieces.

[0031] Numbers in the figure: 1-bottom plate, 2-side support, 3-drive roller, 4-enclosing box, 5-scraper, 6-guide plate, 7-limiting seat, 8-collection box, 9-first motor, 10-disc, 11-short pin, 12-long key plate, 13-side frame, 14-second motor, 15-first threaded rod, 16-horizontal knife holder, 17-mounting seat, 18-drive box, 19-protective cover, 20-slitting knife, 21-extension seat, 22-horizontal slider, 23-sleeve box, 24-spring seat, 25-first spring, 26-incomplete threaded seat, 27-third motor, 28-second threaded rod, 29-long pin, 30-telescopic rod, 31-linkage frame, 32-long groove, 33-knife groove, 34-cross rail, 35-vertical plate, 36-connecting rod, 37-first sliding pin, 38-cross groove, 39-oblique groove, 40-extension shaft, 41-first tension spring, 42-connecting pad, 43-connecting seat, 44-long connecting rod, 45-sliding seat, 46-centrifugal ball, 47-centrifugal disk, 48-second tension spring, 49-tension spring seat. DETAILED DESCRIPTION

[0032] The following are specific embodiments of the present invention, and the technical solutions of the present invention are further described in conjunction with the accompanying drawings, but the present invention is not limited to these embodiments.

[0033] like Figure 1-Figure 12As shown, the present invention provides a slitting device for battery electrodes, comprising a base plate 1, side supports 2 are respectively provided on both sides of the upper end of the base plate 1, a rotatable driving roller 3 is provided on the inner side of the two side supports 2, a lifting and lowering cross-blade holder 16 is provided on the upper end of the two side supports 2, a plurality of detachable mounting seats 17 are provided on the cross-blade holder 16, a rotatable slitting knife 20 is provided at the front end of the mounting seat 17, and an adjusting device is also provided at the front end of the mounting seat 17, the adjusting device comprises a rotatable second threaded rod 28, and when the second threaded rod 28 rotates, a structure can be formed for the slitting knife 20 to move left or right.

[0034] like Figure 1-Figure 8 As shown, the bottom plate 1 is used to support the entire device, and the side support 2 is fixedly connected to the upper end surface of the bottom plate 1. The side support 2 is used to support the limited transmission roller 3 so that it can only rotate. The inner wall of the side support 2 is provided with a driving motor, and the transmission roller 3 is fixedly connected to the output end of the driving motor. The driving motor provided can provide rotational force for the transmission roller 3. The motor is a prior art and is not described in detail; the cross-blade frame 16 is used to support and fix the mounting seat 17, the slitting knife 20, the adjustment device and other components. When the cross-blade frame 16 is raised and lowered, the upper and lower coordinate positions of the slitting knife 20 can be adjusted. The mounting seat 17 is fixed to the cross-blade frame 16 by bolts, and the mounting seat 17, the slitting knife 20, etc. can be independently disassembled, which is conducive to installation and maintenance, reduces space occupancy, reduces energy consumption, and shortens The changeover time is shortened and the production efficiency is improved. The left and right coordinate positions of the slitting knife 20 can be adjusted by the provided adjustment device, that is, adjusted according to the pre-slitting requirements, and the left and right process width dimensions can be adjusted independently. The slitting knife 20 can rotate, and a plurality of knife grooves 33 matching with the slitting knife 20 are provided on the outer surface of the driving roller 3. By passing the lithium foil between the slitting knife 20 and the driving roller 3, the lithium foil can be cut with the cooperation of the slitting knife 20 and the knife grooves 33. The device has a reduced structural space, is convenient for installation and maintenance, has a simple structure, saves materials and reduces energy consumption, solves the problem that the wide-width pre-slitting integrated machine of the foil is difficult to adjust, can be independently disassembled for fast knife change and change of shape, shortens the changeover time, and improves production efficiency.

[0035] The left and right sides of the upper end surface of the side support 2 are respectively fixed with side frames 13, and the cross-blade holder 16 is slidably connected to the inner walls of the two side frames 13. The rear end surfaces of the side frames 13 are also respectively fixed with second motors 14, and the output ends of the second motors 14 are respectively fixed with first threaded rods 15, and the cross-blade holder 16 is threadedly connected to the outer surfaces of the two first threaded rods 15.

[0036] like Figure 6-Figure 7As shown, the side frame 13 limits the position of the cross-blade frame 16, so that the cross-blade frame 16 can only move up and down; the upper ends of the outer surfaces of the first threaded rod 15 are rotatably connected to bearing seats, and the bottom ends of the bearing seats are respectively fixed to the end faces of one side of the side frame 13, and the first threaded rod 15 can be limited to rotate by the bearing seats. The function of the second motor 14 is to provide rotational force for the first threaded rod 15. The motor is of prior art and will not be described in detail; when the second motor 14 is started, it can drive the first threaded rod 15 to rotate, and when the first threaded rod 15 rotates, it will drive the cross-blade frame 16 to move upward or downward, thereby adjusting the upper and lower coordinates of the cross-blade frame 16 and the slitting knife 20, and the threaded connection between the first threaded rod 15 and the cross-blade frame 16 has a self-locking function, that is, when the first threaded rod 15 does not rotate, the corresponding position of the cross-blade frame 16 is in a fixed state.

[0037] The front end surface of the mounting seat 17 is fixedly connected to the third motor 27, and the second threaded rod 28 is fixedly connected to the corresponding output end of the third motor 27. The front end of the mounting seat 17 is provided with a sleeve box 23, and the lower end of the sleeve box 23 is provided with a driving box 18. The slitting knife 20 is installed on one side of the driving box 18, and the front and rear sides of the upper end of the sleeve box 23 are provided with an incomplete threaded seat 26 that matches the second threaded rod 28.

[0038] like Figure 5-Figure 7 As shown, the third motor 27 can provide rotational force for the second threaded rod 28. One side of the outer surface of the second threaded rod 28 is rotatably connected with a bearing seat, and the bottom end of the bearing seat is fixedly connected to the mounting seat 17. The second threaded rod 28 can only rotate through the bearing seat limit support; the sleeve box 23 is used to support the drive box 18, the slitting knife 20 and other components. The inner wall of the drive box 18 is provided with a motor, and the slitting knife 20 is installed at the output end of the motor. The motor provides rotational force for the slitting knife 20. A protective cover 19 that cooperates with the slitting knife 20 is also provided on one side of the drive box 18 to prevent the slitting knife 20 from being damaged and collapsed; when the third motor 27 is started, it can drive the second threaded rod 28 to rotate. When the second threaded rod 28 rotates, it will cause the sleeve box 23, the drive box 18, the slitting knife 20, etc. to move left or right through the threaded connection with the incomplete threaded seat 26, thereby adjusting the position of the slitting knife 20.

[0039] The front and rear sides of the upper end surface of the sleeve box 23 are respectively fixed with spring seats 24, the inner end surfaces of the two spring seats 24 are respectively fixed with first springs 25, and the incomplete thread seats 26 are respectively fixed to the corresponding inner ends of the first springs 25, and the incomplete thread seats 26 are respectively slidably connected to the upper end surface of the sleeve box 23.

[0040] like Figure 8As shown, the incomplete threaded seat 26 can slide back and forth on the upper surface of the sleeve 23. When the two incomplete threaded seats 26 move to the innermost end, they can engage with the second threaded rod 28 threadably. When the two incomplete threaded seats 26 move outward, they can disengage from the second threaded rod 28, and are no longer threadedly connected to the second threaded rod 28. The function of the spring seat 24 is to support and fix the first spring 25. The function of the first spring 25 is to drive the two incomplete threaded seats 26 to have an inward driving force, so that the incomplete threaded seats 26 are at the innermost end under normal conditions, that is, they are stably engaged with the second threaded rod 28.

[0041] The upper ends of the driving box 18 are respectively provided with extension seats 21, which are slidably connected to the inner walls of the sleeve box 23, and horizontal sliders 22 are respectively fixedly connected to the end surfaces of one side of the extension seats 21. The front end surfaces of the mounting seats 17 are respectively slidably connected to horizontal rails 34, and the horizontal sliders 22 are respectively slidably connected to the corresponding horizontal rails 34. The upper end surfaces of the horizontal rails 34 are respectively fixedly connected to vertical plates 35. The mounting seats 17 are also respectively provided with centrifugal devices that cooperate with the vertical plates 35. The centrifugal devices are respectively connected to the second threaded rods 28. When the second threaded rods 28 rotate, the centrifugal devices can form a structure in which the vertical plates 35 and the slitting knife 20 move upward.

[0042] like Figure 9-10 As shown, the extension seat 21 can be slidably connected to the inner wall of the sleeve box 23 up and down, the horizontal slider 22 can be slidably connected to the inner wall of the horizontal rail 34 left and right, and the horizontal rail 34 can be slidably connected to the front end surface of the mounting seat 17 up and down. Through the installation limit of the horizontal rail 34, the horizontal slider 22, and the extension seat 21, the drive box 18 can move up and down and left and right; through the cooperation of the set centrifugal device and the vertical plate 35, the centrifugal device can be driven to work when the second threaded rod 28 rotates, and the centrifugal device will drive the vertical plate 35 when it works. 5. The cross rail 34, the cross slide block 22, the extension seat 21, the drive box 18, the slitting knife 20 and the like move upward synchronously. At the same time, when the second threaded rod 28 rotates, the threaded connection between the incomplete threaded seat 26 and the second threaded rod 28 can drive the slitting knife 20 to move left or right. When the slitting knife 20 moves upward, it can stay away from the transmission roller 3. When the slitting knife 20 is controlled to move, it is prevented from contacting the transmission roller 3, thereby reducing the friction between the slitting knife 20 and the transmission roller 3, thereby protecting the slitting knife 20 and the transmission roller 3.

[0043] The centrifugal devices respectively include an extension shaft 40 fixedly connected to the second threaded rod 28, and a connecting pad 42 that can move left and right is respectively sleeved on the outer surface of the extension shaft 40, and a connecting seat 43 slidably connected to the mounting seat 17 is rotatably connected to the outer surface of the connecting pad 42, and a connecting rod 36 is respectively fixedly connected to the end surface of one side of the connecting seat 43, and a first sliding pin 37 is respectively fixedly connected to the inner wall of the connecting rod 36, and a track groove matching the first sliding pin 37 is respectively opened on the vertical plate 35.

[0044] like Figure 10-12 As shown, the connecting seat 43 can be slidably connected to the front end surface of the mounting seat 17, the extension shaft 40 is fixedly connected to the end surface of one side of the second threaded rod 28, and the outer surface of the extension shaft 40 is rotatably connected with a bearing seat fixed to the mounting seat 17, and the bearing seat is used to limit the extension shaft 40 to only rotate; the connecting pad 42 and the extension shaft 40 are spline-connected, and the connecting pad 42 can move left and right on the outer surface of the extension shaft 40, and when the extension shaft 40 rotates, it will drive the connecting pad 42 to rotate; the installation and shape of the vertical plate 35, the first sliding pin 37, and the track groove are as shown in the figure. Fig.11 As shown, the track groove includes a transverse groove 38 and an inclined groove 39. When the first sliding pin 37 is engaged with the transverse groove 38, the vertical plate 35 and the horizontal rail 34 can be limited to move up and down, that is, the height of the slitting knife 20 is limited and fixed, even if the slitting knife 20 is working at a specified height, that is, the height position of the slitting knife 20 is locked; when the connecting pad 42, the connecting seat 43, the connecting rod 36, the first sliding pin 37, etc. move to the right synchronously, at this time, the first sliding pin 37 will not make the vertical plate 35 and the horizontal rail 34 move up and down under the engagement of the transverse groove 38. When the first sliding pin 37 moves to the right and enters the inner wall of the inclined groove 39, the first sliding pin 37 continues to move to the right, and in engagement with the inclined groove 39, it drives the vertical plate 35, the horizontal rail 34, the slitting knife 20, etc. to move upward synchronously, that is, when the second threaded rod 28 rotates, it drives the slitting knife 20 to move left or right and the vertical plate 35 to move upward. When the vertical plate 35 moves upward, it drives the slitting knife 20 to move upward, so that the slitting knife 20 is out of contact with the driving roller 3 when moving left or right.

[0045] The outer surface of the extension shaft 40 is respectively sleeved with a first tension spring 41 that matches the connecting pad 42, and the left end surface of the connecting pad 42 is respectively hinged with a plurality of evenly distributed long connecting rods 44. The outer surface of the extension shaft 40 is also respectively fixed with a centrifugal disk 47, and the inner wall of the centrifugal disk 47 is respectively slidably connected with a plurality of evenly distributed sliding seats 45. The long connecting rods 44 are respectively hinged on the corresponding sliding seats 45, and the right end of the sliding seats 45 is respectively fixed with a centrifugal ball 46.

[0046] like Fig.12 As shown, one end of the first tension spring 41 is fixedly connected to the right end surface of the second threaded rod 28, and the other end of the first tension spring 41 is fixedly connected to the connecting pad 42. The first tension spring 41 always exerts a leftward pulling force on the connecting pad 42, so that the connecting pad 42 and the first sliding pin 37 are at the leftmost position under normal conditions, that is, the first sliding pin 37 is engaged with the transverse groove 38 under normal conditions, and the slitting knife 20 is limited and fixed; the installation and shape of the connecting pad 42, the long connecting rod 44, the centrifugal disc 47, the sliding seat 45, and the centrifugal ball 46 are as shown Fig.12As shown, the slide 45 can slide inward or outward on the inner wall of the centrifugal disk 47; when the extension shaft 40 and the centrifugal disk 47 rotate, the corresponding slide 45 and the centrifugal ball 46 will be driven to move in a circular motion. When the centrifugal ball 46 moves in a circular motion, it will drive the corresponding slide 45 to move outward synchronously under the action of centrifugal force. When the slide 45 moves outward synchronously, it will drive one end of the long connecting rod 44 to move outward. The other end of the long connecting rod 44 will pull the corresponding connecting pad 42 to move rightward. When the connecting pad 42 moves to the right, it will lengthen the first tension spring 41 and drive The first sliding pin 37 is driven to move rightward, thereby moving the slitting knife 20 upward. When the extension shaft 40 stops rotating, the corresponding centrifugal ball 46, the connecting pad 42, the first sliding pin 37, etc. can be reset under the tension of the first tension spring 41. Through the provided centrifugal device, no matter whether the second threaded rod 28 and the extension shaft 40 rotate forward or reverse, the first sliding pin 37 will be moved to the right, that is, the vertical plate 35 and the slitting knife 20 will move upward, that is, no matter whether the slitting knife 20 moves to the left or right, the slitting knife 20 will move upward for a short distance and disengage from the transmission roller 3.

[0047] The front end surface of the mounting seat 17 is also fixedly connected with a tension spring seat 49, and one side end surface of the tension spring seat 49 is fixedly connected with a second tension spring 48, and the other end of the second tension spring 48 is fixedly connected to the corresponding sleeve box 23. A long pin 29 is provided on the upper end of the incomplete threaded seat 26, and two movable linkage frames 31 are provided on the front side of the upper end surface of the horizontal knife holder 16, and long grooves 32 matching the long pin 29 are respectively opened on the linkage frames 31.

[0048] like Fig. 9 or Fig.12 As shown, two telescopic rods 30 are respectively provided on the front sides of the left and right ends of the upper end surface of the horizontal blade frame 16, and the linkage frame 31 is respectively fixed to the telescopic ends of the two telescopic rods 30, and the linkage frame 31 can be slidably connected to the upper end surface of the horizontal blade frame 16. When the telescopic rod 30 works, it can drive the linkage frame 31 to move inward or outward. The telescopic rod 30 is a prior art and will not be described in detail; through the cooperation of the long pin 29 and the long slot 32, the long pin 29 can move up and down or left and right on the inner wall of the long slot 32 , and when the linkage frame 31 moves inward or outward, the long pin 29 and the incomplete thread seat 26 are driven to move inward or outward through the engagement of the long slot 32 and the long pin 29; the upper end surface of the incomplete thread seat 26 is respectively provided with a plug hole, and the long pin 29 is respectively inserted into the inner wall of the plug hole by interference fit, and the long pin 29 can be disassembled, which is convenient for disassembly of the mounting seat 17, the driving box 18, the slitting knife 20, etc.; the installation and shape of the tension spring seat 49 and the second tension spring 48 are as follows Fig. 9As shown, the second tension spring 48 always exerts a leftward pulling force on the sleeve box 23, even if the sleeve box 23 can be quickly reset; when the device is idle or after use, the second motor 14 is started to move the cross knife frame 16 upward for a distance, even if all the slitting knives 20 are out of contact with the transmission roller 3, at this time, the two linkage frames 31 are moved outward by starting the telescopic rod 30, even if the two incomplete threaded seats 26 move outward and disengage from the second threaded rod 28, after disengaging from the second threaded rod 28, the sleeve box 23, the slitting knife 20, etc. can be quickly moved to the left and reset under the pulling force of the second tension spring 48.

[0049] A first motor 9 is fixedly connected to the middle part of the upper end surface of the base plate 1, a disc 10 is fixedly connected to the output end of the first motor 9, a short pin 11 is fixedly connected to the non-center part of the upper end surface of the disc 10, a surrounding box 4 is fixedly connected to the inner wall of the two side supports 2, a scraper 5 matched with the transmission roller 3 is fixedly connected to the inner wall of the surrounding box 4, a material guide plate 6 matched with the surrounding box 4 is slidably connected to the upper end surface of the base plate 1, a long key plate 12 matched with the short pin 11 is fixedly connected to the middle part of the lower end surface of the material guide plate 6, and collecting boxes 8 matched with the material guide plate 6 are respectively placed on the left and right sides of the upper end surface of the base plate 1.

[0050] like Figure 3-Figure 5 As shown, the enclosure box 4 is sleeved on the outside of the driving roller 3 to play a protective and sealing role; the left and right sides of the lower end surface of the guide plate 6 are respectively fixed to the limit seat 7, and the limit seat 7 can be slidably connected to the upper end surface of the bottom plate 1; the installation and shape of the guide plate 6 are as shown Figure 4 As shown, the guide plate 6 is high in the middle and low at both ends, and can receive the chips after cutting, and can make the chips flow into the two collection boxes 8 when moving; after the slitting knife 20 cuts, it is inevitable that chips will be generated, and the chips will flow into the guide plate 6 under gravity. If some of the chips adhere to the transmission roller 3, the scraper 5 provided can scrape off the chips adhered to the outer surface of the transmission roller 3 when the transmission roller 3 rotates; the function of the first motor 9 is to provide a rotational force for the disc 10, and the installation and shape of the long key plate 12, the short pin 11, and the disc 10 are as shown in the figure. Figure 5 As shown, when the disc 10 rotates, it can drive the short pin 11 to rotate. When the short pin 11 rotates, it will engage with the long key plate 12, which will drive the long key plate 12 and the guide plate to oscillate back and forth, thereby allowing the debris on the upper end of the guide plate to flow into the collection box 8.

[0051] A method for using a cutting device for a battery electrode sheet comprises the following steps:

[0052] S1, placing the lithium foil to be cut between the driving roller 3 and the cutting knife 20, and when the driving roller 3 and the cutting knife 20 rotate, the lithium foil can be cut;

[0053] S2. When the slitting width needs to be changed, the slitting knife 20 can be moved to the left or right to a specified position through the rotatable second threaded rod 28, and the required slitting width can be obtained when the slitting knife 20 continues to rotate.

[0054] When the present invention is in use, the upper and lower coordinate positions of the slitting knife 20 can be adjusted when the cross-blade frame 16 is lifted up and down. The mounting seat 17 is fixed on the cross-blade frame 16 by bolts, and the mounting seat 17, the slitting knife 20, etc. can be independently disassembled, which is convenient for installation and maintenance, reduces space occupation, reduces energy consumption, shortens the time of changing models, and improves production efficiency. Through the provided adjustment device, the left and right coordinate positions of the slitting knife 20 can be adjusted, that is, it can be adjusted according to the pre-slitting requirements, and the left and right process width dimensions can be adjusted independently; the slitting knife 20 can rotate, and a plurality of knife grooves 33 matched with the slitting knife 20 are provided on the outer surface of the driving roller 3. By passing the lithium battery foil between the slitting knife 20 and the driving roller 3, the lithium battery foil can be cut under the cooperation of the slitting knife 20 and the knife grooves 33; the device has a reduced structural space, is convenient for installation and maintenance, has a simple structure, saves materials and reduces energy consumption, solves the problem that the wide-width pre-slitting integrated machine of the foil material is difficult to adjust, can be independently disassembled for fast knife change and changing models, shortens the time of changing models, and improves production efficiency.

[0055] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A cutting device for battery pole pieces, comprising a bottom plate (1), characterized in that: Side supports (2) are respectively provided on both sides of the upper end of the bottom plate (1), a rotatable transmission roller (3) is provided inside the two side supports (2), a lifting and lowering cross-knife holder (16) is provided on the upper ends of the two side supports (2), a plurality of detachable mounting seats (17) are provided on the cross-knife holder (16), a rotatable slitting knife (20) is provided at the front end of the mounting seat (17), and an adjusting device is also provided at the front end of the mounting seat (17), the adjusting device comprising a rotatable second threaded rod (28), and when the second threaded rod (28) is rotated, the slitting knife (20) can be moved leftward or rightward. The mounting seat (17) has a front end surface fixedly connected to a third motor (27), the second threaded rod (28) is fixedly connected to the corresponding output end of the third motor (27), the front end of the mounting seat (17) is provided with a sleeve box (23), the lower end of the sleeve box (23) is provided with a drive box (18), the slitting knife (20) is installed on one side of the drive box (18), and the front and rear sides of the upper end of the sleeve box (23) are respectively provided with an incomplete thread seat (26) matching with the second threaded rod (28); the upper end of the drive box (18) is provided with an extension seat (21), the extension seat (2 1) are respectively slidably connected to the inner wall of the sleeve box (23), a horizontal slider (22) is fixedly connected to one end surface of the extension seat (21), a horizontal rail (34) is slidably connected to the front end surface of the mounting seat (17), the horizontal slider (22) is slidably connected to the corresponding horizontal rail (34), and a vertical plate (35) is fixedly connected to the upper end surface of the horizontal rail (34), and the mounting seat (17) is also provided with a centrifugal device matched with the vertical plate (35), and the centrifugal device is respectively connected to the second threaded rod (28), and when the second threaded rod (28) rotates, the centrifugal device can be formed to work so that the vertical plate (35) ), and the slitting knife (20) moves upward; the centrifugal device comprises an extension shaft (40) fixedly connected to the second threaded rod (28), the outer surface of the extension shaft (40) is respectively covered with a connecting pad (42) that can move left and right, the outer surface of the connecting pad (42) is respectively rotatably connected to a connecting seat (43) that is slidably connected to the mounting seat (17), a connecting rod (36) is respectively fixedly connected to the end surface of one side of the connecting seat (43), the inner wall of the connecting rod (36) is respectively fixedly connected to the first sliding pin (37), and the vertical plate (35) is respectively provided with a track groove that matches the first sliding pin (37).

2. A battery electrode cutting device as claimed in claim 1, characterized in that: The side support seat (2) is fixedly connected to side frames (13) on the left and right sides of the upper end surface, respectively; the cross-blade holder (16) is slidably connected to the inner walls of the two side frames (13); the rear end surfaces of the side frames (13) are also fixedly connected to second motors (14), the output ends of the second motors (14) are fixedly connected to first threaded rods (15), respectively; and the cross-blade holder (16) is threadedly connected to the outer surfaces of the two first threaded rods (15).

3. A battery electrode cutting device as claimed in claim 1, characterized in that: The upper end surface of the sleeve box (23) is fixedly connected to spring seats (24) on both front and rear sides, respectively; the inner end surfaces of the two spring seats (24) are fixedly connected to first springs (25) respectively; the incomplete thread seats (26) are fixedly connected to the corresponding inner ends of the first springs (25), and the incomplete thread seats (26) are slidably connected to the upper end surface of the sleeve box (23).

4. A battery electrode cutting device as claimed in claim 1, characterized in that: The outer surface of the extension shaft (40) is respectively sleeved with a first tension spring (41) matched with the connection pad (42), and the left end surface of the connection pad (42) is respectively hinged with a plurality of evenly distributed long connecting rods (44). The outer surface of the extension shaft (40) is also respectively fixedly connected with a centrifugal disk (47), and the inner wall of the centrifugal disk (47) is respectively slidably connected with a plurality of evenly distributed sliding seats (45), and the long connecting rods (44) are respectively hinged on the corresponding sliding seats (45), and the right ends of the sliding seats (45) are respectively fixedly connected with centrifugal balls (46).

5. A battery electrode cutting device as claimed in claim 1, characterized in that: The front end surface of the mounting seat (17) is also fixedly connected to a tension spring seat (49), one side end surface of the tension spring seat (49) is fixedly connected to a second tension spring (48), the other end of the second tension spring (48) is fixedly connected to the corresponding sleeve box (23), the upper end of the incomplete threaded seat (26) is provided with a long pin (29), the front side of the upper end surface of the horizontal knife holder (16) is provided with two movable linkage frames (31), and the linkage frames (31) are respectively provided with long grooves (32) matching with the long pin (29).

6. A battery electrode cutting device as claimed in claim 1, characterized in that: A first motor (9) is fixedly connected to the middle of the upper surface of the bottom plate (1), a disc (10) is fixedly connected to the output end of the first motor (9), a short pin (11) is fixedly connected to the non-center portion of the upper surface of the disc (10), a box (4) is fixedly connected to the inner wall of the two side supports (2), a scraper (5) matched with the transmission roller (3) is fixedly connected to the inner wall of the box (4), a guide plate (6) matched with the box (4) is slidably connected to the upper surface of the bottom plate (1), a long key plate (12) matched with the short pin (11) is fixedly connected to the middle of the lower surface of the guide plate (6), and a collection box (8) matched with the guide plate (6) is respectively placed on the left and right sides of the upper surface of the bottom plate (1).

7. The method for using the battery electrode cutting device according to claim 1, characterized in that: The steps include: S1. The lithium foil to be cut is placed between the driving roller (3) and the cutting knife (20), and the lithium foil can be cut when the driving roller (3) and the cutting knife (20) rotate. S2. When the cutting width needs to be changed, the cutting knife (20) can be moved to the left or right to a specified position by means of a rotatable second threaded rod (28), and the required cutting width can be obtained when the cutting knife (20) continues to rotate.

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