Pouch battery tab cutting device

Abstract

The utility model discloses a kind of soft package battery tab cutting device, including at least one cutting mechanism, the cutting mechanism includes upper die cutter and lower die cutter, the upper die cutter includes protruding part, the lower die cutter is provided with recessed position corresponding the position of protruding part, the cutting device has first direction, when the upper die cutter moves to the lower die cutter along the first direction, the protruding part is inserted into the recessed position, and tab is cut into preset shape by the cooperation of protruding part and recessed position. The utility model can accurately cut the tab of required shape, improve the stability and accuracy of cutting.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a device for cutting tabs of soft-pack batteries. Background Technology

[0002] In the production process of power batteries, the tab cutting process is crucial. The ease, speed, accuracy, and consistency of the cutting have a significant impact on subsequent production stages and the final performance of the battery. Utility Model Content

[0003] Currently, battery tabs are mostly cut using scissors in a Z-shaped pattern. This method cannot guarantee dimensional accuracy and production efficiency, affecting product consistency and assembly efficiency, and fails to meet the demands of mass production of new products. Therefore, a new cutting device is needed to optimize and improve the process. In view of this, the purpose of this invention is to provide a soft-pack battery tab cutting device to solve the above problems, enabling precise cutting of tabs to the required shape and improving cutting stability and accuracy.

[0004] A device for cutting tabs of a soft-pack battery includes at least one cutting mechanism. The cutting mechanism includes an upper die cutter and a lower die cutter. The upper die cutter includes a protrusion, and the lower die cutter has a recess corresponding to the position of the protrusion. The cutting device has a first direction. When the upper die cutter moves towards the lower die cutter along the first direction, the protrusion is inserted into the recess, and the tab is cut into a preset shape through the cooperation of the protrusion and the recess.

[0005] In one embodiment, the protrusion and the recess cooperate to cut the tab into a Z-shaped structure.

[0006] In one embodiment, the cutting device has a second direction perpendicular to the first direction, the recessed portion penetrates the lower die cutter along the first direction near the upper die cutter and along the second direction, and the protrusion is provided corresponding to the recessed portion.

[0007] In one embodiment, the cutting device has a second direction perpendicular to the first direction; the upper die cutter is provided with a first adjustment structure for adjusting the position of the upper die cutter in the second direction, and / or the lower die cutter is provided with a second adjustment structure for adjusting the position of the lower die cutter in the second direction.

[0008] In one embodiment, the upper die cutter has a limiting rod extending in the first direction at the end near the lower die cutter and away from the protrusion, and the lower die cutter has a limiting groove adapted to the limiting rod.

[0009] In one embodiment, the cutting device further includes a support, a movable plate, and a base plate. The upper die cutter is mounted on the movable plate, and the movable plate is slidably connected to the support so that the movable plate drives the upper die cutter to slide in the first direction. The lower die cutter is mounted on the base plate.

[0010] In one embodiment, the base plate is provided with a battery tray for placing batteries to be cut; the base plate and the battery tray are slidably connected; the cutting device has a second direction perpendicular to the first direction and a third direction perpendicular to both the first and second directions; the battery tray can move along the third direction toward or away from the lower die cutter.

[0011] In one embodiment, the upper die cutter further includes an upper cutting blade, and the protrusion is fixed on the upper cutting blade; the cutting device has a second direction perpendicular to the first direction, the upper die cutter is provided with a first adjustment structure, the first adjustment structure includes a first waist-shaped hole and a first fixing bolt, the upper cutting blade is provided with the first waist-shaped hole extending along the second direction, and the upper cutting blade is locked and fixed to the movable plate through the first fixing bolt passing through the first waist-shaped hole.

[0012] In one embodiment, the lower die tool includes a lower cutting blade, a lower die base, and a lower pad. The recess is disposed on the lower cutting blade, the lower pad is fixed to the base plate, and the lower cutting blade is fixedly connected to the lower die base, with both disposed on the lower pad.

[0013] In one embodiment, the cutting device has a second direction perpendicular to the first direction, the lower die cutter is provided with a second adjustment structure, the second adjustment structure includes a second oblong hole and a second fixing bolt, the lower die base is provided with a second oblong hole extending along the second direction, and the lower die base is locked and fixed to the lower pad by the second fixing bolt passing through the second oblong hole.

[0014] The beneficial effects of this utility model are as follows: by using the cooperation of the protruding part and the recessed part for cutting, compared with the traditional straight cutting, the required shape of the electrode tab can be accurately obtained, which meets the requirements of the existing battery process for the shape of the electrode tab, provides convenience for the installation of the busbar in the subsequent process, ensures normal production, and improves the stability and accuracy of cutting. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the cutting device structure of this utility model.

[0017] Figure 2 yes Figure 1 The diagram shows a shaded movable panel.

[0018] Figure 3 This is a schematic diagram of the structure of the protrusion of the upper die tool to be inserted into the lower die tool.

[0019] Figure 4 for Figure 3 A schematic diagram of the back structure of the upper die tool.

[0020] Figure 5 for Figure 3 A schematic diagram of the back structure of the lower die tool.

[0021] Figure 6 yes Figure 1 Rear view.

[0022] Figure 7 This is the battery after the tabs have been cut off (the dotted lines represent the cut-off tabs).

[0023] In the diagram: 1. Bracket; 11. First sliding connection structure; 111. First slide rail; 112. First slider; 2. Movable plate; 21. Positioning plate; 22. Connecting rod; 3. Base plate; 31. Second sliding connection structure; 311. Second slide rail; 312. Second slider; 32. Pushing mechanism; 321. Limiting plate; 322. Connecting plate; 323. Threaded rod; 4. Drive mechanism; 5. Upper die cutter; 51. Protrusion; 52. Upper cutting blade; 521. Limiting rod; 53. First adjusting structure 531, First oblong hole; 6, Lower die cutter; 61, Lower cutting blade; 611, Recessed position; 62, Lower die base; 63, Lower pad; 631, Third oblong hole; 64, Second adjustment structure; 641, Second oblong hole; 65, Limiting block; 66, Limiting groove; 7, Battery tray; 71, Battery limiting block; 711, First battery limiting block; 7111, Fourth oblong hole; 712, Second battery limiting block; 7121, Fifth oblong hole; 8, Protective cover; 9, Battery; 91, Tab. Detailed Implementation

[0024] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of this utility model. Based on the description of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0025] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0026] The terms “upper,” “lower,” “left,” “right,” “front,” “back,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of description and simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] The terms “first,” “second,” “third,” etc., are used merely to distinguish elements with similar properties, not to indicate or imply relative importance or a specific order.

[0028] The terms “include,” “comprising,” or any other variation thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.

[0029] like Figures 1 to 7 As shown, this utility model provides a device for cutting tabs of a soft-pack battery, including at least one cutting mechanism. The cutting mechanism includes an upper die cutter 5 and a lower die cutter 6. The upper die cutter 5 includes a protrusion 51, and the lower die cutter 6 has a recess 611 corresponding to the position of the protrusion 51. The cutting device has a first direction X. When the upper die cutter 5 moves to the lower die cutter 6 along the first direction X, the protrusion 51 can be inserted into the recess 611. The tab 91 is cut into a preset shape by the cooperation of the protrusion 51 and the recess 611.

[0030] In this embodiment, by using the cooperation of the protrusion 51 and the recess 611 for cutting, compared with traditional straight cutting, the required shape of the tab 91 can be accurately obtained, which meets the requirements of the existing battery 9 process for the shape of the tab 91, provides convenience for the installation of the busbar in the subsequent process, ensures normal production, and improves the stability and accuracy of cutting.

[0031] The protruding edge 51 matches the edge contour of the recessed position 611. The upper die cutter 5 and lower die cutter 6, each with a corresponding protruding edge 51 and recessed position 611, can be replaced according to the preset shape of different tabs 91 to meet various tab 91 cutting requirements. The tabs 91 of the battery 9 to be cut are laid flat on the surface of the lower die cutter 6 near the surface of the upper die cutter 5. A flexible buffer layer can be provided on the surface of the lower die cutter 6 near the upper die cutter 5 to prevent the tabs 91 from being damaged by hard contact during placement. For further understanding, the first direction X in this application can be defined as the vertical direction, with the upper die cutter 5 positioned directly above the lower die cutter 6. The second direction Y and the third direction Z described below are both perpendicular to the first direction X, where the second direction Y is the left-right direction and the third direction Z is the front-back direction. Further, the cutting device includes two cutting mechanisms symmetrically spaced along the second direction Y, each corresponding to one of the two tabs 91 of the battery 9 to be cut.

[0032] As one implementation method, such as Figures 3 to 5 As shown, the protrusion 51 and the recess 611 cooperate to cut the tab 91 into a Z-shaped structure (as shown). Figure 7 (As shown). Specifically, the cutting device has a second direction Y perpendicular to the first direction X, and the recessed part 611 extends along the second direction Y to one end of the lower die cutter 6, forming an L-shaped structure with the body of the lower die cutter 6; compared with shear cutting to form Z-shaped tabs 91, the cutting dimensional accuracy of Z-shaped tabs 91 is greatly improved, ensuring product consistency, reducing welding risks, and improving production efficiency to meet the needs of mass production of new products.

[0033] As one implementation method, such as Figures 2 to 5 As shown, the upper die cutter 5 includes an upper cutting blade 52, a protrusion 51 fixed on the upper cutting blade 52, and a recess 611 formed on the surface of the lower die cutter 6 near the upper die cutter 5. The cutting device has a second direction Y perpendicular to the first direction X. The recess 611 penetrates the lower die cutter 6 along the side near the upper die cutter 5 along the first direction X and along the side along the second direction Y. Specifically, when the tab 91 is laid flat on the upper surface of the lower die cutter 6, the recess 611, which penetrates in the second direction Y, provides complete cutting space for the side of the tab 91, preventing the edge of the lower die cutter 6 from blocking the blade and ensuring that the extended edge is cut flat and without residual waste. The recess 611 penetrates at least the side of the lower die cutter 6 near the upper die cutter 5, that is, through the upper surface of the lower die cutter 6, so that the protrusion 51 can be smoothly inserted into the recess 611 along the first direction X. The protrusion 51 and the recess 611 cooperate to cut the tab 91 into a Z-shaped structure. Of course, as Figure 5 As shown, the recessed position 611 can be configured to penetrate both sides of the lower die cutter 6 along the first direction X, that is, to be configured to pass through in the first direction X.

[0034] As one implementation method, such as Figures 2 to 6 As shown, the upper die cutter 5 has a limiting rod 521 extending along the first direction X at its end near the lower die cutter 6 and away from the protrusion 51. The lower die cutter 6 has a limiting groove 66 that matches the limiting rod 521. The cooperation between the limiting rod 521 and the limiting groove 66 ensures precise alignment of the upper die cutter 5 and the lower die cutter 6 during the cutting process, avoids cutting errors caused by alignment deviations, improves the accuracy and consistency of the tab 91 cutting, and reduces the scrap rate. Specifically, the lower die cutter 6 includes an L-shaped limiting block 65, which is fixed to the side of the lower cutting blade 61 with a recessed position 611 by bolts. The limiting block 65 and the lower cutting blade 61 enclose and form the limiting groove 66. The limiting rod 521 and the upper cutting blade 52 are integrally formed.

[0035] As one implementation method, such as Figure 1 and Figure 2 As shown, the cutting device also includes a support 1, a movable plate 2, and a base plate 3. The upper die cutter 5 is mounted on the movable plate 2, and the movable plate 2 is slidably connected to the support 1 via a first sliding connection structure 11, allowing the movable plate 2 to drive the upper die cutter 5 to slide in the first direction X. The lower die cutter 6 is mounted on the base plate 3. Specifically, the first sliding connection structure 11 includes a first slide rail 111 and a first slider 112 that cooperate with each other. The support 1 has first slide rails 111 extending along the first direction X on both sides. The movable plate 2 has first sliders 112 fixed on both sides corresponding to the positions of the first slide rails 111. The first slide rails 111 and the first sliders 112 cooperate to allow the movable plate 2 to slide along the first direction X on the support 1 to adjust the distance between the upper die cutter 5 and the lower die cutter 6. The sliding connection structure between the movable plate 2 and the support 1 enables stable movement of the upper die cutter 5 along the first direction X, ensuring the smoothness of the cutting process and improving the cutting accuracy and reliability. Of course, the sliding connection structure can also use a combination of a groove and a slider. The base plate 3 provides a stable mounting platform for the lower die cutter 6, ensuring that the lower die cutter 6 does not shift during the cutting process. Furthermore, a protective cover 8 is also provided around the outer periphery of the bracket 1 to prevent dust and protect the internal components. The protective cover 8 can be made of acrylic material.

[0036] As one implementation method, such as Figure 1 and Figure 2As shown, a positioning plate 21 is provided on the movable plate 2 at the position where the lower die cutter 6 places the tab 91. The positioning plate 21 is fixed on the movable plate 2 by a connecting rod 22. A connecting hole (not shown) is opened on the surface of the positioning plate 21 near the bracket 1. One end of the connecting rod 22 is inserted into the connecting hole and connected to the positioning plate 21 through an elastic element. When the movable plate 2 moves down, the positioning plate 21 contacts and squeezes the tab 91, thereby fixing the tab 91. When the movable plate 2 continues to move down, the elastic element contracts, and the positioning plate 21 moves upward relative to the movable plate 2. The setting of the positioning plate 21 does not affect the subsequent cutting operation.

[0037] As one implementation method, such as Figures 2 to 5 As shown, the cutting device has a second direction Y perpendicular to the first direction X; the upper die cutter 5 is provided with a first adjustment structure 53, which is used to adjust the position of the upper die cutter 5 in the second direction Y, and / or, the lower die cutter 6 is provided with a second adjustment structure 64, which is used to adjust the position of the lower die cutter 6 in the second direction Y. In this embodiment, by adjusting the positions of the upper die cutter 5 and the lower die cutter 6 in the second direction Y, the cutting requirements of different sized tabs 91 can be adapted, improving the versatility and flexibility of the device, eliminating the need to design separate cutting devices for tabs 91 of different sizes, and reducing production costs.

[0038] As one implementation method, such as Figure 3 and Figure 4 As shown, the first adjustment structure 53 includes a first oblong hole 531 and a first fixing bolt (not shown). The upper cutting blade 52 has a first oblong hole 531 extending along the second direction Y. The upper cutting blade 52 is locked and fixed to the movable plate 2 through the first fixing bolt passing through the first oblong hole 531. The cooperation between the first oblong hole 531 and the first fixing bolt allows the first adjustment structure 53 to adjust the position of the upper cutting blade 52 on the movable plate 2 along the second direction Y, thereby adjusting the position of the protrusion 51 in the second direction Y. The adjustment method is simple and reliable, and can ensure the positional accuracy after adjustment, improving the versatility and flexibility of the device.

[0039] As one implementation method, such as Figure 3 and Figure 5 As shown, the lower die cutter 6 includes a lower cutting blade 61, a lower die base 62, and a lower pad 63. A recessed position 611 is provided on the lower cutting blade 61, and the lower pad 63 is fixed on the base plate 3. The lower cutting blade 61 and the lower die base 62 are fixedly connected by bolts, and both are provided on the lower pad 63.

[0040] As one implementation method, such as Figure 3 and Figure 5As shown, the second adjustment structure 64 includes a second oblong hole 641 and a second fixing bolt (not shown). The lower mold base 62 has a second oblong hole 641 extending along the second direction Y. The lower mold base 62 is locked and fixed to the lower pad 63 by the second fixing bolt passing through the second oblong hole 641. Through the cooperation of the second oblong hole 641 and the second fixing bolt, the lower mold cutter 6 can be conveniently adjusted in the position of the second direction Y. In conjunction with the adjustment of the upper mold cutter 5, it can more accurately adapt to the cutting requirements of different sized tabs 91, further improving the versatility and cutting accuracy of the device. Furthermore, the lower pad 63 has a third oblong hole 631 extending along the third direction Z. Through the cooperation of the third fixing bolt (not shown) and the third oblong hole 631, the position of the lower mold cutter 6 in the third direction Z can be easily adjusted, along with the position of the lower mold base 62 and the lower cutting blade 61. After adjustment, it can adapt to different feeding positions of the battery tray 7 along the third direction Z.

[0041] As one implementation method, such as Figure 1 , Figure 2 and Figure 6 As shown, the cutting device also includes a drive mechanism 4 (such as a cylinder, hydraulic cylinder, or motor). The drive mechanism 4 is mounted on the bracket 1, and its output end is connected to the movable plate 2. When the drive mechanism 4 is working, it drives the movable plate 2 to move along the first direction X, thereby driving the upper die cutter 5 to move and complete the cutting action. The drive mechanism 4 provides power for the movement of the upper die cutter 5. Compared with manual operation, it realizes the automation of the cutting process, improves production efficiency, reduces manual labor intensity, and ensures the consistency of cutting force and speed, further improving the cutting quality.

[0042] As one implementation method, such as Figure 1 and Figure 2 As shown, a battery tray 7 is provided on the base plate 3, which is used to place the battery 9 to be cut. The base plate 3 and the battery tray 7 are slidably connected by a second sliding connection structure 31 (such as a second slide rail 311 and a second slider 312). The battery tray 7 can move towards or away from the lower die cutter 6 in the third direction Z. The battery tray 7 can move in the third direction Z, which facilitates the accurate delivery of the tabs 91 of the battery 9 to be cut to the cutting position, and the removal of the battery 9 after cutting, thus improving the convenience of operation. The second sliding connection structure 31 ensures the smoothness and accuracy of the movement of the battery tray 7, further improving the cutting efficiency and precision. Specifically, the second slide rail 311 is fixed to the upper surface of the base plate 3, and the second slider 312 is fixedly connected to the bottom surface of the battery tray 7. The second slide rail 311 and the second slider 312 cooperate to allow the battery tray 7 to slide on the base plate 3 in the third direction Z. Of course, the second sliding connection structure 31 can also be a slider and a groove.

[0043] As one implementation method, such as Figure 1and Figure 2 As shown, a pushing mechanism 32 is installed on the base plate 3. The pushing mechanism 32 is connected to the battery tray 7 to drive the battery tray 7 to slide. The pushing mechanism 32 can reduce the intensity of manual labor and ensure the consistency of the moving position of the battery tray 7, further improving the accuracy of cutting.

[0044] As one implementation method, such as Figure 2 As shown, the propulsion mechanism 32 includes a limiting plate 321, a connecting plate 322, and a threaded rod 323. The limiting plate 321 is fixed on the base plate 3, and the connecting plate 322 is fixed on the battery tray 7. Both the limiting plate 321 and the connecting plate 322 have threaded holes that match the threaded rod 323. The threaded rod 323 is threadedly connected to both the limiting plate 321 and the connecting plate 322. Rotating the threaded rod 323 can drive the connecting plate 322 and the battery tray 7 to move along the third direction Z. The propulsion mechanism 32 also includes a drive motor (not shown) installed at one end of the threaded rod 323. The output shaft of the drive motor is connected to the threaded rod 323 through a coupling. Rotating the drive motor drives the threaded rod 323 to rotate, thereby pushing the battery tray 7 to move. Of course, the drive motor can also be replaced with a handwheel to achieve manual rotation. This propulsion mechanism 32 has a simple structure and is easy to operate. Through threaded transmission, it can achieve precise movement and positioning of the battery tray 7, ensuring the positional accuracy of the battery 9 during the cutting process, improving cutting precision, and is low in cost and easy to maintain.

[0045] As one implementation method, such as Figure 1 and Figure 2 As shown, the battery tray 7 is provided with multiple battery limiting blocks 71 for limiting and fixing the batteries 9 to be cut placed on the battery tray 7. Specifically, a first battery limiting block 711 extending along the second direction Y is provided on the side of the battery tray 7 opposite to the lower die cutter 6. The first battery limiting block 711 has a fourth oblong hole 7111 extending along the third direction Z. The two sides of the battery tray 7 adjacent to the first battery limiting block 711 are provided with second battery limiting blocks 712 extending along the third direction Z. The second battery limiting block 712 has a fifth oblong hole 7121 extending along the second direction Y. The fourth oblong hole 7111 is configured to adjust the position of the first battery limiting block 711 in the third direction Z, and the fifth oblong hole 7121 is configured to adjust the position of the second battery limiting block 712 in the second direction Y. The adjustment of the positions of the first battery limiting block 711 and the second battery limiting block 712 is adapted to accommodate batteries 9 of different sizes.

[0046] The working process of this utility model is as follows: After placing the battery 9 to be cut on the battery tray 7, the pushing mechanism 32 pushes the battery tray 7 along the third direction Z towards the lower die cutter 6. When pushed into place, the tab 91 covers the upper surface of the lower die cutter 6. The drive mechanism 4 is activated, and the drive mechanism 4 drives the movable plate 2 to move the upper die cutter 5 along the first direction X towards the lower die cutter 6 until the limiting rod 521 of the upper die cutter 5 is inserted into the limiting groove 66 of the lower die cutter 6. At this time, the protrusion 51 is inserted into the recess 611, thus completing the cutting process. The drive mechanism 4 drives the movable plate 2 to move the upper die cutter 5 along the first direction X away from the lower die cutter 6. The pushing mechanism 32 pulls the battery tray 7 along the third direction Z away from the lower die cutter 6, and the cut battery 9 is removed. The next cutting process is then carried out, and this cycle is repeated. The cutting device also includes a control system. The drive motors of the drive mechanism 4 and the propulsion mechanism 32 are electrically connected to the control system, and the automatic control of the cutting device is realized through the control system. The drive mechanism 4 and the drive motor can realize the control of the movement stroke. This technology is existing technology and will not be explained further here.

[0047] This utility model uses the cooperation of the protrusion 51 and the recess 611 for cutting, which can accurately obtain the required shape of the tab 91 compared with the traditional straight cutting. It meets the requirements of the existing battery 9 process for the shape of the tab 91, provides convenience for the installation of the busbar in the subsequent process, ensures normal production, and improves the stability and accuracy of cutting.

[0048] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A device for cutting tabs of a pouch battery, comprising at least one cutting mechanism, characterized in that, The cutting mechanism includes an upper die cutter (5) and a lower die cutter (6). The upper die cutter (5) includes a protrusion (51). The lower die cutter (6) has a recess (611) corresponding to the position of the protrusion (51). The cutting device has a first direction (X). When the upper die cutter (5) moves towards the lower die cutter (6) along the first direction (X), the protrusion (51) is inserted into the recess (611). The tab (91) is cut into a preset shape by the cooperation of the protrusion (51) and the recess (611).

2. The soft-pack battery tab cutting device as described in claim 1, characterized in that, The protrusion (51) and the recess (611) cooperate to cut the tab (91) into a Z-shaped structure.

3. The soft-pack battery tab cutting device as described in claim 2, characterized in that, The cutting device has a second direction (Y) perpendicular to the first direction (X), the recess (611) penetrates the lower die cutter (6) along the first direction (X) near the upper die cutter (5) and along the second direction (Y), and the protrusion (51) is provided corresponding to the recess (611).

4. The soft-pack battery tab cutting device as described in claim 1, characterized in that, The cutting device has a second direction (Y) perpendicular to the first direction (X); the upper die cutter (5) is provided with a first adjustment structure (53), the first adjustment structure (53) is used to adjust the position of the upper die cutter (5) in the second direction (Y), and / or, the lower die cutter (6) is provided with a second adjustment structure (64), the second adjustment structure (64) is used to adjust the position of the lower die cutter (6) in the second direction (Y).

5. The soft-pack battery tab cutting device as described in claim 1, characterized in that, The upper die cutter (5) is provided with a limiting rod (521) extending along the first direction (X) at the end near the lower die cutter (6) and away from the protrusion (51), and the lower die cutter (6) is provided with a limiting groove (66) adapted to the limiting rod (521).

6. The pouch battery tab cutting device according to any one of claims 1-5, characterized in that, The cutting device further includes a bracket (1), a movable plate (2) and a base plate (3). The upper die cutter (5) is mounted on the movable plate (2). The movable plate (2) is slidably connected to the bracket (1) so that the movable plate (2) drives the upper die cutter (5) to slide in the first direction (X). The lower die cutter (6) is mounted on the base plate (3).

7. The soft-pack battery tab cutting device as described in claim 6, characterized in that, The base plate (3) is provided with a battery tray (7), which is used to place the battery (9) to be cut; the base plate (3) and the battery tray (7) are slidably connected, and the cutting device has a second direction (Y) perpendicular to the first direction (X) and a third direction (Z) perpendicular to both the first direction (X) and the second direction (Y). The battery tray (7) can move towards or away from the lower die cutter (6) along the third direction (Z).

8. The soft-pack battery tab cutting device as described in claim 6, characterized in that, The upper die cutter (5) also includes an upper cutting blade (52), and the protrusion (51) is fixed on the upper cutting blade (52); the cutting device has a second direction (Y) perpendicular to the first direction (X), and the upper die cutter (5) is provided with a first adjustment structure (53). The first adjustment structure (53) includes a first waist-shaped hole (531) and a first fixing bolt. The upper cutting blade (52) is provided with the first waist-shaped hole (531) extending along the second direction (Y). The upper cutting blade (52) is locked and fixed to the movable plate (2) by passing through the first waist-shaped hole (531) with the first fixing bolt.

9. The soft-pack battery tab cutting device as described in claim 6, characterized in that, The lower die cutter (6) includes a lower cutting blade (61), a lower die base (62), and a lower pad (63). The recess (611) is provided on the lower cutting blade (61), and the lower pad (63) is fixed on the base plate (3). The lower cutting blade (61) is fixedly connected to the lower die base (62), and both are provided on the lower pad (63).

10. The soft-pack battery tab cutting device as described in claim 9, characterized in that, The cutting device has a second direction (Y) perpendicular to the first direction (X). The lower die cutter (6) is provided with a second adjustment structure (64). The second adjustment structure (64) includes a second waist-shaped hole (641) and a second fixing bolt. The lower die base (62) is provided with a second waist-shaped hole (641) extending along the second direction (Y). The lower die base (62) is locked and fixed to the lower pad (63) by the second fixing bolt passing through the second waist-shaped hole (641).

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