Pouch battery tab cutting device
Patent Information
- Application Number
- CN202522203231.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-17
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-10-17
AI Technical Summary
Existing pouch battery tab cutting devices suffer from problems such as inflexible cutting length adjustment, poor adaptability, low cutting accuracy, and non-compact device layout, which affect production efficiency and product quality.
The lateral movement mechanism drives the cutting mechanism to move laterally, and the H-shaped guide structure of the upper and lower cutting components enables precise positioning and cutting. It is equipped with a battery detection sensor and an air blowing component to ensure cutting accuracy and stability.
It enables flexible cutting of the tabs of pouch batteries, improves cutting accuracy and consistency, reduces equipment space occupation, and is suitable for integration into automated production lines.
Smart Images
Figure CN224927088U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of battery processing technology, specifically to a device for cutting tabs of pouch batteries. Background Technology
[0002] As an important type of lithium-ion battery, pouch cells are widely used in new energy vehicles and other fields due to their advantages such as high energy density, good safety, and flexible design. During the assembly of pouch cells into battery modules, the battery tabs need to be precisely cut to meet different specification requirements.
[0003] Most current electrode cutting devices suffer from one or more of the following drawbacks: inflexible cutting length adjustment, unable to quickly adapt to different battery specifications and process requirements, resulting in poor adaptability; the need to transfer batteries to a dedicated cutting station, and then to the next process station after cutting, making the process cumbersome and affecting production cycle time; the C-shaped design of the tool fixing structure, which is prone to vibration and displacement during cutting, leading to decreased cutting accuracy and affecting product quality; and the overall layout of the device is not compact enough, occupying a large space, making it difficult to effectively install and integrate in space-constrained automated production lines. Utility Model Content
[0004] In view of this, the purpose of this application is to provide a device for cutting tabs of pouch batteries to solve at least one of the above-mentioned technical problems.
[0005] This application provides a device for cutting tabs of a pouch battery, including a lateral moving mechanism and a cutting mechanism mounted on the lateral moving mechanism. The lateral moving mechanism is used to drive the cutting mechanism to move laterally. The cutting mechanism includes a frame and an upper cutting assembly and a lower cutting assembly mounted on the frame. The upper cutting assembly and the lower cutting assembly are used to cooperate to cut the tabs. The upper cutting assembly includes a first drive cylinder and an upper cutter. The first drive cylinder is used to drive the upper cutter to move downward. The upper cutter includes an upper cutter body and two first guide portions disposed at both ends of the upper cutter body. The lower cutting assembly includes a second drive cylinder and a lower cutter. The second drive cylinder is used to drive the lower cutter to move upward. The lower cutter includes a lower cutter body and two second guide portions disposed at both ends of the lower cutter body. The two second guide portions are columnar extending in the vertical direction and are respectively guided and cooperated with the two first guide portions, so that the upper cutter and the lower cutter can slide relative to each other in the vertical direction.
[0006] In some alternative embodiments, the first guide portion is protruding, and the second guide portion has a matching groove extending in the vertical direction; or, the first guide portion is a groove extending in the vertical direction, and the second guide portion has a matching protrusion extending in the vertical direction.
[0007] In some alternative embodiments, the traversing mechanism includes a linear module, a motor, a linear guide rail, a slider, and a traversing platform. The linear module is driven by the motor, the linear guide rail is arranged parallel to the side of the linear module, the slider is mounted on the linear guide rail, the traversing platform is mounted on the slider, and the traversing platform is connected to the output end of the linear module; the cutting mechanism is mounted on the traversing platform.
[0008] In some alternative implementations, the traversing mechanism also includes a position sensor for detecting the position of the traversing platform and feeding back the signal to the motor control system.
[0009] In some alternative implementations, the end of the transverse platform furthest from the motor is provided with a notch and connected to a discharge pipe, the upper end of which is connected to a discharge port provided at the bottom of the cutting mechanism.
[0010] In some optional embodiments, the upper cutting assembly further includes an upper template, an upper pad, an upper clamping plate, a lower pad, a guide post fixing plate, a lower template, a first guide post, and a first guide sleeve. A first drive cylinder is installed on the top of the frame, with its output end facing downward and connected to the upper template. The upper template, upper pad, and upper clamping plate are connected sequentially from top to bottom. An upper cutter is installed on the upper clamping plate via a connecting block. The lower pad, guide post fixing plate, and lower template are connected sequentially from top to bottom and positioned below the upper clamping plate. The first guide post passes through the upper clamping plate and the lower pad, with its lower end installed on the guide post fixing plate. Both the upper template and the upper pad have holes through which the first guide post can pass. A first guide sleeve is installed on the upper clamping plate, and the first guide sleeve guides and engages with the first guide post.
[0011] In some alternative embodiments, the lower cutting assembly further includes a connecting plate, a pull rod, and a lower clamping plate. The second drive cylinder is mounted on the top of the frame, and the output end of the second drive cylinder is downward and connected to the connecting plate located above the upper template. The connecting plate is connected to the lower clamping plate located above the lower pad through the pull rod. A lower cutter is mounted on the lower clamping plate.
[0012] In some optional embodiments, the cutting mechanism further includes a pressure assembly, which includes a pressure plate, a second guide post, and a second guide sleeve. The pressure plate is connected to the lower part of the upper clamping plate by a limiting screw. The upper cutter passes through the pressure plate. The second guide post passes through the pressure plate and the lower pad, and the upper end of the second guide post is mounted on the upper clamping plate. The guide post fixing plate and the lower template are both provided with holes through which the second guide post can pass. The second guide sleeve is installed on the pressure plate and guides the second guide post.
[0013] In some alternative implementations, the cutting mechanism also includes a battery detection sensor, which detects whether the pouch battery has reached a preset position of the cutting mechanism and feeds back the signal to the control system of the cutting mechanism.
[0014] In some alternative implementations, an air blowing assembly is also included, which is directed toward the downward cutter to blow air into the downward cutter area to prevent the cut waste from sticking to the tab.
[0015] Based on the above technical solution, the pouch battery tab cutting device provided in this application has the following beneficial effects: the lateral movement mechanism can drive the cutting mechanism to move laterally, which can meet the cutting requirements of different lengths of pouch battery tabs, and is particularly suitable for processing scenarios where a group of pouch batteries that make up a battery module need to be cut into tabs of different lengths; there is no need to transfer the pouch batteries, and the tabs can be cut directly; the cooperation structure of the upper and lower cutters is more stable than the traditional C-shaped cooperation structure, which can effectively prevent the cutter from vibrating and deflecting during the cutting process, and improve the cutting accuracy and consistency; the whole device has a compact structure and is suitable for placement in a limited space. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of a device for cutting tabs of a soft-pack battery, provided in an embodiment of this application.
[0018] Figure 2 This is a schematic diagram of a transverse movement mechanism provided in an embodiment of this application.
[0019] Figure 3 This is a schematic diagram of a cutting mechanism provided in an embodiment of this application.
[0020] Figure 4 This is a schematic diagram of a frame, an upper cutting assembly, and a pressing assembly provided in an embodiment of this application.
[0021] Figure 5 This is a schematic diagram of the structure of a cutting component provided in an embodiment of this application.
[0022] Figure 6 This is a schematic diagram of an upper cutter and a lower cutter provided in an embodiment of this application.
[0023] Reference numerals: 100, Soft-pack battery tab cutting device; 10, Transverse mechanism; 11, Linear module; 12, Motor; 13, Linear guide rail; 14, Slider; 15, Transverse platform; 151, Detection bracket; 16, Position sensor; 17, Drop tube; 20, Cutting mechanism; 21, Frame; 211, Column; 212, Top plate; 22, Upper cutting assembly; 221, First drive cylinder; 222, Upper template; 223, Upper pad; 224, Upper clamping plate; 225, Upper cutter; 2251, Upper cutter body; 2252, First guide part; 226, Lower pad; 227 228. Guide post fixing plate; 229. Lower template; 220. First guide post; 2210. First guide sleeve; 2211. Anti-fall limit block; 23. Pressing assembly; 231. Pressing plate; 232. Second guide post; 233. Second guide sleeve; 24. Lower cutting assembly; 241. Second drive cylinder; 242. Connecting plate; 243. Pull rod; 244. Lower clamping plate; 245. Lower cutter; 2451. Lower cutter body; 2452. Second guide part; 25. Battery detection sensor; 30. Tank chain; 40. Pipeline adapter; 50. Air blowing assembly; 51. Air blowing pipe; 52. Fixing block. Detailed Implementation
[0024] The specific embodiments of this application will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely a part of the embodiments of this application, and not all of them. Based on the description of this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.
[0025] In the description of this application, unless otherwise expressly specified and limited, the terms "connection," "setup," "installation," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0026] The terms “upper,” “lower,” “left,” “right,” “front,” “back,” “center,” “top,” “bottom,” “inner,” “outer,” “vertical,” “horizontal,” “clockwise,” “counterclockwise,” “axial,” “radial,” and “circumferential” 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 application.
[0027] The terms “first,” “second,” “third,” etc., are used only to distinguish elements with similar properties, and do not indicate or imply relative importance or a specific order, unless otherwise explicitly stated or limited.
[0028] The terms “comprising,” “including,” “having,” or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase “comprising one…” does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.
[0029] The term "multiple" means two or more (including two).
[0030] The term "and / or" describes the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three cases: A exists alone, A and B exist simultaneously, and B exists alone.
[0031] The terms "an embodiment," "as an example," and "in one implementation" refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which may be included in at least one embodiment or example of this application. These illustrative expressions do not necessarily refer to the same embodiment, nor are they independent or alternative embodiments mutually exclusive with other embodiments. Where there is no conflict, the embodiments and features described in these embodiments can be combined in a suitable manner.
[0032] Figure 1 This is a schematic diagram of the structure of a soft-pack battery tab cutting device 100 provided in an embodiment of this application, as shown below. Figure 1 As shown in the figure, this application provides a pouch battery tab cutting device 100, including a transverse mechanism 10 and a cutting mechanism 20 mounted on the transverse mechanism 10. The various mechanisms are described in detail below.
[0033] The lateral movement mechanism 10 is used to drive the cutting mechanism 20 to move laterally, so as to meet the cutting requirements of different lengths of the tabs of the soft-pack battery according to the cutting process parameters. It is especially suitable for processing scenarios where a group of soft-pack batteries that make up a battery module need to be cut into tabs of different lengths.
[0034] As an example, such as Figure 2As shown, the transverse mechanism 10 is mounted on the base and includes a linear module 11, a motor 12, linear guide rails 13, sliders 14, and a transverse platform 15. The linear module 11 is arranged transversely and driven by the motor 12. The linear module 11 can be a conventional linear module such as a ball screw module, a synchronous belt module, or a linear motor module. The motor 12 is preferably a servo motor, which features high-precision position control, fast response, and stable operation. The linear guide rails 13 are arranged parallel to the sides of the linear module 11 and are significantly longer than the length of the linear module 11. The illustration shows two linear guide rails 13, arranged on opposite sides of the linear module 11. Each linear guide rail 13 is equipped with two sliders 14. The transverse platform 15 is mounted on the sliders 14 of each linear guide rail 13, forming a stable support structure, and is connected to the output end of the linear module 11. During operation, motor 12 drives linear module 11, and the output of linear module 11 drives transverse platform 15 to move smoothly along linear guide rail 13. This structural design gives transverse mechanism 10 good rigidity and guiding accuracy, ensuring the positioning accuracy of cutting mechanism 20 during transverse movement and meeting the precise positioning and cutting requirements of battery tabs at different positions.
[0035] The transverse mechanism 10 also includes a position sensor 16, which is used to detect the position of the transverse platform 15 and provide a precise position feedback signal to the control system of the motor 12 to achieve precise positioning control of the transverse platform 15. The position sensor 16 can be a contact or non-contact sensor.
[0036] As an example, the position sensors 16 employ slotted photoelectric switches, and there are multiple position sensors 16 arranged in a row at intervals and parallel to each other on the side of the linear guide rail 13. A detection bracket 151 is connected to the side of the transverse platform 15 for these position sensors 16 to detect. As the transverse platform 15 moves, when the detection bracket 151 blocks the optical path of a slotted photoelectric switch, the slotted photoelectric switch generates a signal change, which is fed back to the control system of the motor 12. This control system can then determine the position of the transverse platform 15 and drive the linear module 11 via the motor 12 to achieve precise positioning control of the transverse platform 15.
[0037] The end of the transverse platform 15 furthest from the motor 12 is provided with a notch and connected to a discharge pipe 17. The upper end of the discharge pipe 17 is connected to the discharge port at the bottom of the cutting mechanism 20, and the lower end of the discharge port can be positioned above the waste collection box. The discharge pipe 17 is used to guide the waste generated during cutting to fall smoothly into the waste collection box and to prevent the waste from scattering below the transverse platform 15 and affecting its movement. The discharge pipe 17 shown in the figure is a square tube, but it can also be a round tube, an elliptical tube, or other tubes with conventional cross-sections. The inner wall can be smoothed to ensure that the waste falls smoothly.
[0038] The cutting mechanism 20 is used to cut the tabs of the pouch battery. For example... Figure 3 As shown, the cutting mechanism 20 includes a frame 21, an upper cutting assembly 22, a pressing assembly 23, and a lower cutting assembly 24. The upper cutting assembly 22 and the lower cutting assembly 24 are used to cut the electrode tabs by the cooperation of the upper cutting blade 225 and the lower cutting blade 245. The pressing assembly 23 is used to press the electrode tabs tightly during the cutting process to prevent the electrode tabs from shifting or deforming during the cutting process.
[0039] Regarding rack 21, as an example, such as Figure 4 As shown, the frame 21 includes four columns 211 and a top plate 212. The four columns 211 are installed on the transverse platform 15 of the transverse mechanism 10 in a rectangular arrangement at the four corners. The top plate 212 is installed on top of these columns 211. One column 211 is hidden in the figure.
[0040] Regarding the upper cutting component 22, as an example, such as Figure 4As shown, the upper cutting assembly 22 includes a first drive cylinder 221, an upper template 222, an upper pad 223, an upper clamping plate 224, an upper cutter 225, a lower pad 226, a guide post fixing plate 227, a lower template 228, multiple first guide posts 229, and multiple first guide sleeves 2210. The first drive cylinder 221 is mounted on the upper surface of the top plate 212. The output end of the first drive cylinder 221 passes downward through the top plate 212 and connects to the upper template 222. For example, the first drive cylinder 221 is a cylinder. The upper template 222, the upper pad 223, and the upper clamping plate 224 are connected sequentially from top to bottom, wherein the upper cutter 225 is mounted on the upper clamping plate 224 via a connecting block. The lower pad 226, guide post fixing plate 227, and lower template 228 are located below the upper clamping plate 224 and connected sequentially from top to bottom. The lower template 228 is installed on the transverse platform 15. The lower pad 226, guide post fixing plate 227, and lower template 228 are all provided with corresponding material discharge ports. Each first guide post 229 passes through the upper clamping plate 224 and the lower pad 226, and the lower end of the first guide post 229 is installed on the guide post fixing plate 227. The upper template 222 and the upper pad 223 are both provided with holes through which the first guide post 229 can pass. A first guide sleeve 2210 is installed on the upper clamping plate 224, and the first guide sleeve 2210 guides and engages with the first guide post 229. During operation, the first drive cylinder 221 drives the upper template 222, upper pad 223, and upper clamping plate 224 to descend along the first guide post 229, causing the upper cutter 225 to move downward. By cooperating with the lower cutter 245 of the lower cutting assembly 24, the tabs of the soft-pack battery are cut. After the tabs are cut, the first drive cylinder 221 drives the upper template 222, upper pad 223, upper clamping plate 224, and upper cutter 225 to reset.
[0041] The upper cutting assembly 22 also includes a fall-prevention limit block 2211. The fall-prevention limit block 2211 is installed on the side of the guide post fixing plate 227 and located beside the first guide post 229. The fall-prevention limit block 2211 is used to block the upper clamping plate 224 and limit the falling stroke of the upper template 222, the upper pad 223, and the upper clamping plate 224 when the first drive cylinder 221 fails or is accidentally depressurized, thereby preventing hard collisions between the corresponding components and protecting the safety of the cutting mechanism 20.
[0042] Regarding the pressing assembly 23, as an example, such as Figure 4As shown, the pressure assembly 23 includes a pressure plate 231, multiple second guide posts 232, and multiple second guide sleeves 233. The pressure plate 231 is connected to the lower part of the upper clamping plate 224 by a limiting screw. The limiting screw is provided with a sleeve, which abuts against the pressure plate 231 and the upper clamping plate 224 to maintain a certain distance between the pressure plate 231 and the upper clamping plate 224. The upper cutter 225 is set through the pressure plate 231. Each second guide post 232 passes through the pressure plate 231 and the lower pad 226, and the upper end of the second guide post 232 is mounted on the upper clamping plate 224. The guide post fixing plate 227 and the lower template 228 are both provided with holes for the second guide post 232 to pass through. The second guide sleeve 233 is installed on the pressure plate 231, and the second guide sleeve 233 guides and second guide posts 232. During operation, the pressure plate 231 moves synchronously along the second guide post 232 under the drive of the upper clamping plate 224. During the process of cutting the soft-pack battery tabs with the cooperation of the upper cutter 225 and the lower cutter 245, the pressure plate 231 presses the tabs. After the tabs are cut, the pressure plate 231 resets along with the upper clamping plate 224.
[0043] Regarding the lower cut component 24, as an example, such as Figure 3 and Figure 5As shown, the lower cutting assembly 24 includes multiple second drive cylinders 241, a connecting plate 242, multiple pull rods 243, a lower clamping plate 244, and a lower cutter 245. The multiple second drive cylinders 241 are symmetrically distributed about the axis of the first drive cylinder 221. Each second drive cylinder 241 is mounted on the lower surface of the top plate 212. The output end of the second drive cylinder 241 faces downward and is connected to the connecting plate 242. For example, the first drive cylinder 221 is a cylinder and there are two of them. A connecting plate 242 is positioned above the upper template 222, and a lower clamping plate 244 is positioned above the lower pad 226. The connecting plate 242 and the lower clamping plate 244 are connected by multiple tie rods 243. The widths of both the connecting plate 242 and the lower clamping plate 244 are greater than the widths of the upper template 222, upper pad 223, upper clamping plate 224, and pressure plate 231 between them. This arrangement of the tie rods 243 on the sides of the upper template 222, upper pad 223, upper clamping plate 224, and pressure plate 231 prevents interference during movement. The lower clamping plate 244 has a discharge port corresponding to the lower pad 226. The lower clamping plate 244 is also penetrated by a first guide post 229, and a second guide sleeve 233 is installed on the lower clamping plate 244, providing a guiding fit with the second guide post 232. A lower cutter 245 is mounted on the lower clamping plate 244. During operation, the second drive cylinder 241 drives the connecting plate 242 to move upward along the second guide post 232. The connecting plate 242 drives the lower clamping plate 244 to move upward synchronously through the pull rod 243, so that the top surface of the lower cutter 245 abuts against the lower surface of the soft-pack battery tab. The lower cutter 245 cooperates with the downward-moving upper cutter 225 to cut the tab. After the tab is cut, the second drive cylinder 241 drives the connecting plate 242, pull rod 243, lower clamping plate 244 and lower cutter 245 to reset.
[0044] Regarding the mating structure of the upper cutting blade 225 and the lower cutting blade 245, as an example, such as... Figure 6As shown, the upper cutter 225 includes an upper cutter body 2251 and two first guide portions 2252. The upper cutter body 2251 is elongated and arranged horizontally. A cutting edge is provided on the bottom edge of the upper cutter body. The two first guide portions 2252 are respectively located at both ends of the upper cutter body 2251 along its length. The lower cutter 245 includes a lower cutter body 2451 and two second guide portions 2452. The lower cutter body 2451 is also elongated and arranged horizontally. A cutting edge is provided on the top edge of the lower cutter body 2451. The two second guide portions 2452 are columnar and are respectively located at both ends of the lower cutter body 2451 along its length. Each second guide portion 2452 extends vertically and its lower end connects to the lower cutter body 2451. The two second guide portions 2452 guide and cooperate with the two first guide portions 2252, allowing the upper cutter 225 and the lower cutter 245 to slide relative to each other in the vertical direction. During operation, the upper cutter 225 slides downward along the second guide portion 2452 of the lower cutter 245 via the first guide portion 2252, causing the cutting edge of the upper cutter 225 to contact the cutting edge of the lower cutter 245, thus cutting off the tabs of the pouch battery through shearing force. The overall mating structure of the upper cutter 225 and the lower cutter 245 is H-shaped, which provides more stable cutting compared to the traditional C-shaped mating structure. This effectively prevents vibration and deflection of the upper cutter 225 and the lower cutter 245 during the cutting process, improving cutting accuracy and consistency.
[0045] The first guide portion 2252 may be protruding, and the second guide portion 2452 may have a matching groove extending in the vertical direction. Alternatively, the first guide portion 2252 may be a groove extending in the vertical direction, and the second guide portion 2452 may have a matching protrusion extending in the vertical direction.
[0046] The cutting mechanism 20 also includes a battery detection sensor 25, which detects whether the pouch battery has reached a preset position of the cutting mechanism 20. When the pouch battery reaches the preset position, the battery detection sensor 25 provides a feedback signal to the control system of the cutting mechanism 20 indicating that the pouch battery is in position, and the control system controls the cutting mechanism 20 to perform the cutting operation. The battery detection sensor 25 can be a contact or non-contact sensor.
[0047] As an example, such as Figure 3 As shown, the battery detection sensor 25 is a diffuse reflection photoelectric sensor, mounted on the column 211 of the frame 21 by a bracket, with the detection end facing downwards. When the detection end of the battery detection sensor 25 detects the light beam reflected from the surface of the pouch battery, it indicates that the pouch battery has reached the preset position of the cutting mechanism 20. The battery detection sensor 25 sends a signal to the control system of the cutting mechanism 20, which then controls the cutting mechanism 20 to perform the cutting operation.
[0048] To better manage the cables of the transverse mechanism 10 and the conduits and cables of the cutting mechanism 20, the pouch battery tab cutting device 100 also includes a tank chain 30 and a conduit adapter 40.
[0049] As an example, such as Figure 1 and 2 As shown, the tank chain 30 is installed in the bracket next to the transverse mechanism 10. One end of the tank chain 30 is connected to the transverse platform 15 through the connecting bracket and moves with the transverse platform 15. The pipeline adapter 40 is installed on the transverse platform 15 and is used to connect the pipeline of the cutting mechanism 20 to the external power source to ensure the stability of the pipeline connection of the cutting mechanism 20 during the reciprocating motion of the transverse platform 15.
[0050] To prevent the cut waste from sticking to the tabs and affecting the waste discharge, the soft-pack battery tab cutting device 100 also includes an air blowing assembly 50.
[0051] As an example, such as Figure 3 and Figure 5 As shown, the air blowing assembly 50 includes an air blowing tube 51 and a fixing block 52. The air blowing tube 51 is mounted on the upper surface of the lower clamping plate 244 via the fixing block 52. One end of the air blowing tube 51 is flared and faces horizontally toward the lower cutter 245, while the other end is used to connect to an external air source via a pipeline. After cutting, the air blowing tube 51 blows air into the area of the lower cutter 245 to prevent the cut waste from sticking to the electrode tabs.
[0052] In summary, the pouch battery tab cutting device provided in this application has the following advantages: the lateral movement mechanism can drive the cutting mechanism to move laterally, which can meet the cutting requirements of different lengths of pouch battery tabs, and is particularly suitable for processing scenarios where a group of pouch batteries that make up a battery module need to be cut into tabs of different lengths; there is no need to transfer the pouch batteries, and the tabs can be cut directly; the cooperation structure of the upper and lower cutters is more stable than the traditional C-shaped cooperation structure, which can effectively prevent the cutter from vibrating and deflecting during the cutting process, and improve the cutting accuracy and consistency; the whole device has a compact structure and is suitable for placement in a limited space.
[0053] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application.
Claims
1. A device for cutting tabs of a soft-pack battery, characterized in that, It includes a lateral movement mechanism and a cutting mechanism mounted on the lateral movement mechanism. The lateral movement mechanism is used to drive the cutting mechanism to move laterally. The cutting mechanism includes a frame and an upper cutting component and a lower cutting component mounted on the frame. The upper cutting component and the lower cutting component are used to cooperate to cut the electrode tabs. The upper cutting assembly includes a first drive cylinder and an upper cutter. The first drive cylinder drives the upper cutter to move downward. The upper cutter includes an upper cutter body and two first guide portions disposed at both ends of the upper cutter body. The lower cutting assembly includes a second drive cylinder and a lower cutter. The second drive cylinder drives the lower cutter to move upward. The lower cutter includes a lower cutter body and two second guide portions disposed at both ends of the lower cutter body. The two second guide portions are columnar extending in the vertical direction and respectively guide and cooperate with the two first guide portions, so that the upper cutter and the lower cutter can slide relative to each other in the vertical direction.
2. The soft-pack battery tab cutting device according to claim 1, characterized in that, The first guide portion is protruding, and the second guide portion has a matching groove extending vertically; or, The first guide portion is a groove extending in the vertical direction, and the second guide portion is provided with a matching protrusion extending in the vertical direction.
3. The soft-pack battery tab cutting device according to claim 1, characterized in that, The traversing mechanism includes a linear module, a motor, a linear guide rail, a slider, and a traversing platform. The linear module is driven by the motor. The linear guide rail is arranged parallel to the side of the linear module. The slider is mounted on the linear guide rail. The traversing platform is mounted on the slider and is connected to the output end of the linear module. The cutting mechanism is mounted on the traversing platform.
4. The soft-pack battery tab cutting device according to claim 3, characterized in that, The traversing mechanism also includes a position sensor, which is used to detect the position of the traversing platform and feed the signal back to the control system of the motor.
5. The soft-pack battery tab cutting device according to claim 3, characterized in that, The end of the transverse platform away from the motor has a notch and is connected to a material drop pipe. The upper end of the material drop pipe is connected to the material drop port at the bottom of the cutting mechanism.
6. The soft-pack battery tab cutting device according to claim 1, characterized in that, The upper cutting assembly further includes an upper template, an upper pad, an upper clamping plate, a lower pad, a guide post fixing plate, a lower template, a first guide post, and a first guide sleeve. The first drive cylinder is installed on the top of the frame, with its output end facing downward and connected to the upper template. The upper template, the upper pad, and the upper clamping plate are connected sequentially from top to bottom. The upper cutter is mounted on the upper clamping plate via a connecting block. The lower pad, the guide post fixing plate, and the lower template are connected sequentially from top to bottom and positioned below the upper clamping plate. The first guide post passes through the upper clamping plate and the lower pad, with its lower end mounted on the guide post fixing plate. Both the upper template and the upper pad have holes through which the first guide post can pass. The first guide sleeve is mounted on the upper clamping plate, and the first guide sleeve guides and cooperates with the first guide post.
7. The soft-pack battery tab cutting device according to claim 6, characterized in that, The lower cutting assembly also includes a connecting plate, a pull rod, and a lower clamping plate. The second drive cylinder is installed on the top of the frame. The output end of the second drive cylinder faces downward and is connected to the connecting plate located above the upper template. The connecting plate is connected to the lower clamping plate located on the lower pad through the pull rod. The lower cutter is installed on the lower clamping plate.
8. The soft-pack battery tab cutting device according to claim 6, characterized in that, The cutting mechanism further includes a pressing assembly, which includes a pressing plate, a second guide post, and a second guide sleeve. The pressing plate is connected to the lower part of the upper clamping plate by a limiting screw. The upper cutter passes through the pressing plate. The second guide post passes through the pressing plate and the lower pad, and the upper end of the second guide post is mounted on the upper clamping plate. The guide post fixing plate and the lower template are both provided with holes through which the second guide post can pass. The second guide sleeve is installed on the pressing plate and guides the second guide post.
9. The soft-pack battery tab cutting device according to claim 1, characterized in that, The cutting mechanism also includes a battery detection sensor, which is used to detect whether the pouch battery has reached the preset position of the cutting mechanism and feeds back the signal to the control system of the cutting mechanism.
10. The soft-pack battery tab cutting device according to claim 1, characterized in that, It also includes an air blowing assembly facing the lower cutter to blow air into the area of the lower cutter to prevent the cut waste from sticking to the tab.