A notched forming apparatus for strip material based on battery slab manufacturing

Abstract

This utility model discloses a notch punching forming device for a strip material used in the manufacture of battery square shells, comprising: a feeding track for conveying a strip material so that the strip material moves in a specified direction on the feeding track; two punching devices, wherein the strip material is partially inside the punching devices as it moves on the feeding track, and the punching devices punch notches on both sides of the strip material; a traction device, disposed on the feeding track, driving the strip material to move along the feeding track; the traction device is located on one side of the punching device; the punching device includes: a first mounting frame, fixed to both sides of the feeding track; a first electric cylinder, disposed on the first mounting frame; and a punching die, including an upper die and a lower die, the lower die being fixed to the first mounting frame, and the upper die being connected to the piston rod of the first electric cylinder; wherein the strip material moves intermittently on the feeding track driven by the traction device, and the top surface of the lower die is on the same horizontal plane as the top surface of the feeding track; this application can effectively improve processing efficiency and ensure punching accuracy.

Description

Technical Field

[0001] This utility model belongs to the field of battery casing manufacturing technology, and in particular relates to a strip notch punching forming device based on battery square casing manufacturing. Background Technology

[0002] Notch punching is a crucial step in the manufacturing process of battery prismatic cells. By punching notches of specific shapes into the raw material strip for the battery prismatic cells, precise positioning and structural adaptation are provided for subsequent processes such as strip bending, forming, and cutting. This directly affects the forming accuracy and assembly consistency of the battery prismatic cells. This process is widely used in the mass production of prismatic cells for new energy vehicle power batteries and energy storage batteries. The core requirements are "synchronous punching of notches on both sides, high punching accuracy, stable strip conveying, and adaptation to intermittent production cycles" to meet the high-precision and high-efficiency manufacturing requirements of battery prismatic cells.

[0003] Existing strip punching and forming equipment for battery prismatic shell manufacturing has significant structural design flaws, making it difficult to meet the high precision and high efficiency requirements of large-scale production. Specific problems are as follows:

[0004] Firstly, existing punching devices mostly adopt a single-sided single-punching layout, requiring the punching of a notch on one side of the strip first, and then flipping or moving the strip to punch the other side. This method not only increases the number of process steps, leading to low production efficiency, but is also prone to problems such as asymmetrical notches and misalignment due to secondary positioning deviations of the strip, affecting the forming accuracy and assembly compatibility of the subsequent battery slab, and significantly increasing the product scrap rate.

[0005] Secondly, some blanking devices use continuous feeding, where the material strip is constantly moving during the blanking process. This makes it prone to deviations in the positional accuracy of the blanking notch due to factors such as fluctuations in feeding speed and stretching deformation of the material strip. Furthermore, continuous feeding cannot be precisely matched with subsequent intermittent forming processes, requiring additional positioning and calibration mechanisms, which increases equipment complexity and the risk of failure. In addition, some intermittent feeding devices lack effective limiters on their feeding tracks, making the material strip prone to deviation and shaking during movement, further exacerbating blanking positioning errors. Utility Model Content

[0006] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0007] In order to overcome the problem that existing punching equipment is difficult to adapt to the high precision and high efficiency requirements of large-scale production, this utility model provides a strip notch punching forming device based on battery square shell manufacturing.

[0008] To achieve the above objectives, this utility model adopts the following technical solution: a strip notch punching and forming device based on battery square shell manufacturing, comprising:

[0009] Feeding track is used to convey the material belt so that the material belt moves in a specified direction on the feeding track;

[0010] Two blanking devices are located on both sides of the feeding track. When the material strip moves on the feeding track, part of it is inside the blanking device, and the blanking device blanks notches on both sides of the material strip.

[0011] The traction device is located on the feeding track and drives the material belt to move along the feeding track; the traction device is located on one side of the punching equipment.

[0012] The blanking equipment includes:

[0013] The first mounting bracket is fixed to both sides of the feeding track;

[0014] The first electric cylinder is mounted on the first mounting bracket;

[0015] The blanking die includes an upper die and a lower die, the lower die being fixedly connected to a first mounting bracket, and the upper die being connected to the piston rod of a first electric cylinder;

[0016] The material strip moves intermittently on the feeding track via a traction device, and the top surface of the lower die is on the same horizontal plane as the top surface of the feeding track.

[0017] Furthermore, a connecting frame is provided on the side wall of the first mounting frame, and a connecting plate is provided on the connecting frame. A first positioning plate and a second positioning plate are provided on the connecting plate. The second positioning plate is located above the first positioning plate, and the top surface of the first positioning plate is on the same horizontal plane as the top surface of the feeding track. A gap is left between the first positioning plate and the second positioning plate, and the gap corresponds to the thickness of the material strip.

[0018] Furthermore, the strip notch punching and forming apparatus for manufacturing battery square shells also includes:

[0019] The discharge conveyor belt is located below the feeding track and the punching equipment;

[0020] The receiving trolley is located at one end of the discharge conveyor belt;

[0021] The guide plate is located below the discharge conveyor belt. The guide plate is inclined, and the receiving trolley is located below the bottom of the inclined surface of the guide plate.

[0022] Furthermore, the strip notch punching and forming apparatus for manufacturing battery square shells also includes:

[0023] The feeding device is located at one end of the feeding track and is used to place the rolled material strip;

[0024] The leveling equipment is located between the feeding equipment and the feeding track. One end of the material belt on the feeding equipment passes through the leveling equipment and is placed on the feeding track.

[0025] Furthermore, the feeding equipment includes:

[0026] Support rollers are used to hold the rolled strip of material.

[0027] The machine casing and support rollers are rotatably connected to the machine casing;

[0028] The first motor, mounted on the chassis, is used to drive the support rollers to rotate.

[0029] Furthermore, the support roller includes:

[0030] The spindle is rotatably connected to the chassis;

[0031] Several fixed plates are connected to the main shaft; the fixed plates have an arc-shaped structure.

[0032] The movable plate is sleeved on the main shaft and connected to one end of the fixed plate;

[0033] The main shaft is provided with a first connecting rod, the fixed plate is provided with a second connecting rod and a plurality of first connecting blocks, one end of the first connecting block is rotatably connected to the first connecting rod, and the other end is rotatably connected to the second connecting rod; one end of the fixed plate is provided with a second connecting block, and the movable plate is provided with a movable groove for the second connecting block to move.

[0034] Furthermore, the feeding equipment also includes:

[0035] The first track is partially located below the support rollers and connected to the machine housing;

[0036] The movable block is slidably connected to the first track;

[0037] The placement platform is set on the movable block and moves along the first track with the movable block;

[0038] The second electric cylinder, mounted on the movable block, is used to drive the placement platform to move up and down relative to the movable block.

[0039] Furthermore, the feeding equipment also includes:

[0040] The first support frame and the second support frame are respectively located on both sides of the first track;

[0041] The mounting rod is rotatably connected to the first support frame at one end;

[0042] Mounting base, located on the mounting rod;

[0043] A support base is provided on the mounting base, and the support base is located below one end of the support roller;

[0044] The support base is equipped with a threaded rod, and the mounting base is equipped with a nut that mates with the threaded rod. When the nut rotates, it mates with the threaded rod, which drives the threaded rod to move the support base up and down.

[0045] Furthermore, the traction equipment includes:

[0046] The second track is located below the feeding track;

[0047] The second mounting bracket is slidably connected to the second track;

[0048] The third electric cylinder is mounted on the second mounting bracket;

[0049] The first pressure block is located on the piston rod of the third electric cylinder;

[0050] After the third electric cylinder drives the first pressing block to press the material belt on the feeding track, the second mounting frame moves along the second track to drive the material belt to move on the feeding track.

[0051] The advantages of this utility model are:

[0052] The feeding track is symmetrically equipped with punching devices on both sides. After the material strip moves to the designated position, the two devices can complete the notch punching simultaneously, eliminating the need for sequential single-side processing. Compared with the traditional single-side punching method, the number of process steps is reduced by more than 50%, and the production efficiency is greatly improved. At the same time, it avoids the deviation caused by the secondary positioning of the material strip, ensuring that the notch positions on both sides are symmetrical and the shapes are consistent. It effectively solves the problem of misalignment and asymmetry of the notches on both sides in the existing device, improves the subsequent battery slab forming accuracy and assembly adaptability, and reduces the product scrap rate.

[0053] The material strip adopts an intermittent movement mode and is stationary at the moment of punching, which completely avoids the positioning deviation caused by speed fluctuations and material strip stretching in continuous feeding. Combined with the limiting and guiding effect of the feeding track on the material strip, it can effectively prevent the material strip from deviating or shaking during the movement, ensuring the precise position of the material strip during each punching. The dimensional and positional accuracy of the notch is significantly improved, meeting the core requirements of high-precision manufacturing of battery square shells.

[0054] The intermittent feeding start-stop rhythm can be precisely coordinated with the blanking action. After the material strip is in place, it comes to a stable stop. After the blanking equipment completes the notch blanking and resets, the material strip continues to move to the next station, avoiding the situation of "not blanking in place" or "feeding before blanking is completed". It effectively reduces blanking defects such as incomplete notches, excessive edge burrs, and material strip tearing. It is especially suitable for blanking easily deformable materials such as thin material strips and high-strength alloy material strips, ensuring the processing quality of the material strip and laying a good foundation for subsequent bending and forming processes. Attached Figure Description

[0055] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0056] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0057] In the attached diagram:

[0058] Figure 1 This is a schematic diagram of the material strip notch punching forming device based on battery square shell manufacturing in one embodiment of the present invention.

[0059] Figure 2 for Figure 1 A schematic diagram of the punching and traction equipment of the strip notch punching forming apparatus for manufacturing battery square shells in the illustrated embodiment.

[0060] Figure 3 for Figure 2 Enlarged view of point A in the image.

[0061] Figure 4 for Figure 2 Enlarged view of point B in the image.

[0062] Figure 5 for Figure 1 A schematic diagram of the feeding device of the strip notch punching forming device based on battery square shell manufacturing in the embodiment shown.

[0063] Figure 6 for Figure 5 Enlarged view of point C in the image.

[0064] Figure 7 for Figure 5 Enlarged view of point D in the image.

[0065] Figure 8 for Figure 1 A cross-sectional view of the feeding device of the strip notch punching forming apparatus for battery square shell manufacturing in the embodiment shown.

[0066] Figure 9 for Figure 8 Enlarged view of point E in the image.

[0067] Figure 10 for Figure 1 A schematic diagram of the leveling equipment of the strip notch punching forming device based on battery square shell manufacturing in the embodiment shown.

[0068] The meanings of the reference numerals in the figure are as follows:

[0069] 100. Feeding track; 200. Blanking equipment; 201. First mounting frame; 202. First electric cylinder; 203. Blanking die; 2031. Upper die; 2032. Lower die; 204. Connecting frame; 205. Connecting plate; 206. First positioning plate; 207. Second positioning plate; 300. Unloading equipment; 301. Chassis; 302. Support roller; 3021. Main shaft; 3022. Fixed plate; 3023. First connecting rod; 3024. Second connecting rod; 3025. First connecting block; 3026. Movable plate; 30261. Movable groove; 3027. Second connecting block; 3028. First connecting roller; 3029. Second connecting roller; 303. Movable block; 3 04. Placement platform; 305. First track; 306. First support rod; 307. Second support rod; 308. Mounting rod; 309. Roller; 310. Mounting seat; 311. Support seat; 312. Threaded rod; 313. Handwheel; 314. Second electric cylinder; 400. Leveling equipment; 500. Traction equipment; 501. Second mounting frame; 502. Third electric cylinder; 503. Fourth electric cylinder; 504. First pressure block; 505. Second pressure block; 506. First guide rail; 507. Second guide rail; 508. Second track; 600. Placement frame; 601. Stop block; 602. Ball bearing; 700. Receiving trolley; 800. Guide plate; 900. Discharge conveyor belt. Detailed Implementation

[0070] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0071] It should also be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0072] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0073] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0074] The names of messages or information exchanged between multiple devices in the embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of such messages or information.

[0075] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0076] like Figure 1-10 As shown, a strip punching and forming device for manufacturing battery square shells includes a feeding track 100, a punching device 200, a discharge conveyor belt 900, a receiving trolley 700, a guide plate 800, a feeding device 300, a leveling device 400, and a traction device 500.

[0077] The feeding track 100 is used to convey the material belt, allowing it to move intermittently along the designated direction under the guidance of the traction device 500. Two sets of punching devices 200 are provided, one on each side of the feeding track 100. As the material belt moves along the feeding track 100, part of it is inside the punching device 200, which punches notches on both sides of the material belt. By setting one set of punching devices 200 on each side of the feeding track 100, the punching devices 200 on both sides can simultaneously punch notches on both edges of the material belt after it moves to the punching station. This eliminates the need to punch one side of the material belt first and then adjust its position or flip it to punch the other side, effectively reducing process flow time and significantly improving overall processing efficiency. Meanwhile, simultaneous blanking on both sides can maximize the relative positional accuracy of the notches on both sides of the strip, avoiding problems such as asymmetry and misalignment of the notches on both sides caused by the positioning deviation of the strip during the step-by-step blanking process. This ensures the accurate execution of subsequent battery slab bending, forming and other processes, and reduces the product scrap rate caused by insufficient notch positional accuracy.

[0078] Specifically, such as Figure 2-4As shown, the blanking equipment 200 includes a first mounting frame 201, a first electric cylinder 202, and a blanking die 203. The first mounting frame 201 is fixedly connected to both sides of the feeding track 100; the first electric cylinder 202 is mounted on the first mounting frame 201; the blanking die 203 includes an upper die 2031 and a lower die 2032. The lower die 2032 is fixedly connected to the first mounting frame 201, and the upper die 2031 is connected to the piston rod of the first electric cylinder 202; the top surface of the lower die 2032 is on the same horizontal plane as the top surface of the feeding track 100. By setting the top surface of the lower die 2032 and the top surface of the feeding track 100 to the same horizontal plane, it is ensured that the strip can smoothly transition when entering the blanking area, avoiding the strip jumping or deforming at the moment of blanking due to height difference, thereby ensuring the clarity of the blanking notch outline and dimensional accuracy. When the first electric cylinder 202 drives the upper die 2031 to move downward, the upper die 2031 and the lower die 2032 precisely close, and the die cutting edge is used to shear the strip material to complete the notch punching. The first electric cylinder 202 provides a stable driving force, and its stroke and speed can be precisely controlled, which can adapt to the punching requirements of strips of different thicknesses and materials, ensuring the stability and reliability of the punching process.

[0079] A placement rack 600 is provided on the side wall of the first mounting frame 201. The placement rack 600 is fixed to the side wall of the first mounting frame 201 by bolts. The placement rack 600 is located on one side of the punching die 203. The punching die 203 is connected to the piston rod of the first mounting frame 201 and the first electric cylinder 202 by bolts. By using the bolt connection method, the die can be easily and quickly removed from the piston rod of the first mounting frame 201 and the first electric cylinder 202, so as to change the die according to the notch shape and size requirements of different battery square shell material strips. This improves the adaptability of the device to diverse products and reduces the time cost of changeover adjustment.

[0080] The placement rack 600 is equipped with a stop 601 and multiple balls 602. The balls 602 are connected to the placement rack 600 via mounting posts. The stop 601 is located at the end of the placement rack 600 furthest from the blanking die 203. After the blanking die 203 to be replaced is removed, it moves along the placement rack 600 to the side of the stop 601, where the stop 601 blocks the blanking die 203. The balls 602 reduce the friction between the die and the placement rack 600, making it easier to push the die from the first mounting frame 201 onto the placement rack 600, facilitating handling and storage by operators. In addition, the placement rack 600 provides a temporary support platform for die replacement, preventing the die from being placed directly on the ground and causing damage, while also making the die replacement process more orderly and efficient.

[0081] Furthermore, a connecting frame 204 is provided on the side wall of the first mounting bracket 201, and a connecting plate 205 is provided on the connecting frame 204. A first positioning plate 206 and a second positioning plate 207 are provided on the connecting plate 205. The second positioning plate 207 is located above the first positioning plate 206, and the top surface of the first positioning plate 206 is on the same horizontal plane as the top surface of the feeding track 100. A gap is left between the first positioning plate 206 and the second positioning plate 207, and this gap corresponds to the thickness of the strip. This gap is designed to match the thickness of the strip, so that the strip can be clamped and limited by the first positioning plate 206 and the second positioning plate 207 before entering the punching die 203. The first positioning plate 206 supports the strip from below, ensuring that the bottom surface of the strip is flush with the top surface of the feeding track 100 and the lower die 2032, preventing the strip from sagging due to its own weight or slight vibrations during feeding. The second positioning plate 207 applies pressure to the strip from above, preventing it from shifting or warping horizontally. This dual positioning structure precisely corrects and stabilizes the strip's posture before it enters the punching area, effectively eliminating lateral and longitudinal shifts and vertical jumps that may occur during strip transport. This provides a preliminary guarantee for the precise cutting of the subsequent punching die 203, further improving the positional accuracy and consistency of the punching notch.

[0082] The discharge conveyor belt 900 is located below the feeding track 100 and the punching equipment 200; the receiving trolley 700 is located at one end of the discharge conveyor belt 900; the guide plate 800 is located below the discharge conveyor belt 900, and the guide plate 800 is inclined, with the receiving trolley 700 positioned below the bottom of the inclined surface of the guide plate 800. Waste material generated during the punching process (such as notched waste material) falls from the gap between the feeding track 100 and the punching equipment 200 onto the discharge conveyor belt 900 below under the influence of gravity. After the discharge conveyor belt 900 starts, it transports the waste material collected on its surface to one end. When the waste material is transported to the end of the discharge conveyor belt 900, it slides off the edge of the conveyor belt onto the guide plate 800 below. Because the guide plate 800 is set at an angle, the waste material will slide down the slope of the guide plate 800 under its own gravity and finally fall accurately into the receiving trolley 700 located at the bottom of the slope of the guide plate 800. This realizes the automated collection and centralized processing of punching waste, avoids the accumulation of waste around the equipment, keeps the production environment clean, reduces the cleaning burden on operators, and improves the continuity and efficiency of overall production.

[0083] The feeding device 300 is located at one end of the feeding track 100 and is used to place the rolled strip. The leveling device 400 is located between the feeding device 300 and the feeding track 100. One end of the strip on the feeding device 300 passes through the leveling device 400 and is placed on the feeding track 100. The traction device 500 is located on the feeding track 100 and drives the strip to move along the feeding track 100. The traction device 500 is located on one side of the punching device 200. The feeding device 300 is used to carry the rolled strip and gradually releases the strip under the traction of the traction device 500, providing a stable supply of raw materials for the subsequent leveling and punching processes. The leveling equipment 400 performs leveling treatment on the strip released from the unloading equipment 300. Since the rolled strip is prone to bending, wrinkling, and other deformations during long-term storage and release, the leveling equipment 400 uses multiple sets of leveling rollers arranged vertically to continuously roll and press the strip, eliminating bending stress and restoring it to a flat state. This ensures the strip maintains good flatness after entering the feeding track 100, preventing problems such as jamming, offset, or uneven force during punching caused by uneven strips, thus guaranteeing the quality of the punched notch. The traction equipment 500, as the core power component driving the strip movement, is located on the feeding track 100 and to one side of the punching equipment 200. It drives the strip to move intermittently along the feeding track 100 through friction or clamping force with the strip. Specifically, after the strip completes a set of notch punching at the punching station, the traction device 500 is activated, moving the strip forward a preset distance to deliver the next section of strip to be punched into the punching device 200. Then, the traction device 500 releases the strip or stops moving, keeping the strip stationary during punching. This intermittent feeding method ensures the positional accuracy of the strip during each punching and avoids the cumulative errors that may occur during continuous feeding.

[0084] Furthermore, such as Figure 5-9 As shown, the feeding device 300 includes a support roller 302, a housing 301, and a first motor. The support roller 302 is used to hold the rolled material strip; the support roller 302 is rotatably connected to the housing 301; the first motor is mounted on the housing 301 and is used to drive the support roller 302 to rotate, thereby releasing the rolled material strip. The output shaft of the first motor is connected to one end of the support roller 302 via a coupling, and the output speed can be adjusted according to the traction speed of the traction device 500 to achieve precise matching between the material strip release speed and the traction speed, preventing the material strip from being stretched and deformed due to excessive tension or from piling up due to insufficient tension during the conveying process.

[0085] The support roller 302 includes a main shaft 3021, several fixed plates 3022, and a movable plate 3026. The main shaft 3021 is rotatably connected to the housing 301. The fixed plates 3022 have an arc-shaped structure. The movable plate 3026 is sleeved on the main shaft 3021 and connected to one end of the fixed plate 3022. The main shaft 3021 is provided with a first connecting rod 3023, and the fixed plates 3022 are provided with a second connecting rod 3024 and several first connecting blocks 3025. One end of the first connecting block 3025 is rotatably connected to the first connecting rod 3023, and the other end... The end is rotatably connected to the second connecting rod 3024; one end of the fixed plate 3022 is provided with a second connecting block 3027, and the movable plate 3026 is provided with a movable groove 30261 for the second connecting block 3027 to move. The second connecting block 3027 is provided with a first connecting roller 3028 and a second connecting roller 3029. The movable plate 3026 is clamped between the first connecting roller 3028 and the second connecting roller 3029, so that the second connecting block 3027 can move along the movable groove 30261 but cannot be dislodged from the movable groove 30261.

[0086] By moving the position of the movable plate 3026, the fixed plate 3022 can be moved, causing the first connecting block 3025 to rotate around the connection points at both ends, thereby changing the radial distance between the movable plate 3026 and the main shaft 3021. When placing material rolls with different inner diameters, rotating the first connecting block 3025 causes the fixed plate 3022 to drive the movable plate 3026 to move radially outward or inward along the main shaft 3021 until the outer surface of the movable plate 3026 is tightly fitted with the inner hole of the material roll. This achieves adaptive clamping for material rolls of different specifications, avoiding shaking or slippage of the material roll during the feeding process due to mismatched inner diameters, ensuring a uniform and stable material release speed, and providing a good raw material condition for subsequent leveling and feeding processes.

[0087] The feeding device 300 also includes a first track 305, a movable block 303, a placement platform 304, a second electric cylinder 314, a first support frame, a second support frame, a mounting rod 308, a mounting base 310, and a support base 311.

[0088] The first track 305 is located below the support roller 302 and connected to the housing 301; the movable block 303 is slidably connected to the first track 305; the placement platform 304 is located on the movable block 303 and moves together with the movable block 303 on the first track 305; the second electric cylinder 314 is located on the movable block 303 and is used to drive the placement platform 304 to move up and down relative to the movable block 303. The placement platform 304 is concave in the middle and convex on both sides to place the material belt and prevent the material belt from rolling off the placement platform 304; the movable block 303 is equipped with a second motor and a roller 309. The roller 309 is driven by the second motor and is engaged with the first track 305. When the second motor drives the roller 309 to rotate, it can drive the movable block 303 to move on the first track 305.

[0089] The first support frame and the second support frame are respectively located on both sides of the first track 305; one end of the mounting rod 308 is rotatably connected to the first support frame; the mounting seat 310 is located on the mounting rod 308; the support seat 311 is located on the mounting seat 310, and the support seat 311 is located below one end of the support roller 302; the support seat 311 is provided with a threaded rod 312, and the mounting seat 310 is provided with a nut that cooperates with the threaded rod 312. When the nut rotates, it cooperates with the threaded rod 312 to drive the threaded rod 312 to drive the support seat 311 to move up and down. The mounting seat 310 is also provided with a handwheel 313 that cooperates with the nut. The rotation of the handwheel 313 can drive the nut to rotate, thereby conveniently driving the support seat 311 to move up and down.

[0090] When it is necessary to replace the roll of material on the support roller 302, turn the handwheel 313 to drive the nut to rotate. The nut and the threaded rod 312 cooperate to drive the support seat 311 to descend, so that the support seat 311 disengages from one end of the support roller 302. Then, turn the mounting rod 308 so that one end of the mounting rod 308 is rotated away from the second support frame. The mounting rod 308 drives the mounting seat 310 to rotate to one side of the support roller 302. Place the roll of material to be replaced on the placement table 304. Then, operate the second electric cylinder 314 to raise the placement table 304. After the placement table 304 drives the material to rise to a position level with the support roller 302, the second motor drives the movable block 303 to move towards the support roller 302 to put the material onto the support roller 302. After the support roller 302 is mounted, the movable plate 3026 moves, driving the fixed plate 3022 to move. The fixed plate 3022 supports the inner wall of the material roll to fix the material roll. Then, the second electric cylinder 314 is operated to lower the placement platform 304. The second motor drives the movable block 303 to move back to reset. The mounting rod 308 is rotated back to move the support seat 311 back to below the support roller 302. The handwheel 313 is turned to drive the nut to rotate. The nut and the threaded rod 312 cooperate to drive the support seat 311 to rise until the top surface of the support seat 311 abuts against the bottom surface of one end of the support roller 302, providing additional bottom support for the support roller 302 and preventing the support roller 302 from bending and deforming due to one end being suspended when carrying a heavy material roll, thus ensuring the smooth rotation of the support roller 302.

[0091] The leveling equipment 400 has the same structure as existing leveling machines, so its specific construction will not be described in detail here. Its main function is to continuously roll the strip using multiple sets of adjustable-pressure leveling rollers to eliminate internal stress generated during rolling and storage, and to correct the flatness and straightness of the strip. The number, arrangement, and inter-roller pressure of the leveling rollers can be adjusted according to the material, thickness, and original flatness of the strip. For example, for thinner or lower-hardness strips, the pressure of the leveling rollers can be appropriately reduced to avoid excessive rolling that could cause strip stretching or surface damage. For thicker or hardened strips, the pressure can be increased and the number of leveling roller sets can be increased to ensure the leveling effect. After being processed by the leveling equipment 400, the strip has a smoother and flatter surface, and the longitudinal and transverse bending deformation is effectively controlled. This allows it to maintain a stable posture during subsequent feeding and punching processes, reducing positioning errors and punching defects caused by uneven strip surfaces.

[0092] The traction device 500 includes a second track 508, a second mounting frame 501, a third electric cylinder 502, a first pressure block 504, a fourth electric cylinder 503, and a second pressure block 505. The second track 508 is located below the feeding track 100; the second mounting frame 501 is slidably connected to the second track 508; the third electric cylinder 502 and the fourth electric cylinder 503 are located on the second mounting frame 501; the first pressure block 504 is located on the piston rod of the third electric cylinder 502; the second pressure block 505 is located on the piston rod of the fourth electric cylinder 503; the first pressure block 504 and the second pressure block 505 are arranged adjacent to each other, and the second mounting frame 501 is provided with a first guide rail 506 for guiding the first pressure block 504 and a second guide rail 507 for guiding the second pressure block 505.

[0093] When the traction device 500 needs to move the material belt, the fourth electric cylinder 503 first drives the second pressing block 505 to move downward. Under the guidance of the second guide rail 507, the second pressing block 505 presses down precisely and makes close contact with the material belt on the top surface of the feeding track 100, using friction to temporarily fix the material belt. Then, the third electric cylinder 502 drives the first pressing block 504 to move downward. The first pressing block 504 moves down along the first guide rail 506 and presses the material belt. Next, the second mounting frame 501 moves linearly along the second track 508. Since the first pressing block 504 and the second pressing block 505 have pressed the material belt, the movement of the second mounting frame 501 drives the material belt to move forward synchronously along the feeding track 100 to the preset punching position through friction. Once the strip reaches the target position, the first pressure block 504 is driven upwards by the third electric cylinder 502, releasing the strip. At this time, the second pressure block 505 remains pressed against the strip to prevent slight displacement of the strip due to external force or its own stress before punching. After the punching process is completed, the second pressure block 505 is driven upwards again by the fourth electric cylinder 503, completing one traction action. This step-by-step pressing method of "fixing first and then traction," combined with the precise linear motion control of the second mounting bracket 501, ensures that the strip does not slip or deviate during traction, and also achieves secondary positioning and reinforcement before punching through the continuous pressing of the second pressure block 505, further improving the feeding accuracy and meeting the stringent requirements of the battery prismatic strip for the notch punching position.

[0094] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in the embodiments of this disclosure is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A battery quad flat pack manufacturing based material tape notch blanking forming device, characterized in that: include: A feeding track (100) is used to convey a material belt so that the material belt moves in a specified direction on the feeding track (100); Two punching devices (200) are respectively located on both sides of the feeding track (100). When the material strip moves on the feeding track (100), part of it is inside the punching device (200). The punching device (200) punches notches on both sides of the material strip. A traction device (500) is mounted on the feeding track (100) to drive the material belt to move along the feeding track (100); the traction device (500) is located on one side of the punching device (200); The punching equipment (200) includes: The first mounting bracket (201) is fixedly connected to both sides of the feeding track (100); The first electric cylinder (202) is mounted on the first mounting bracket (201); The blanking die (203) includes an upper die (2031) and a lower die (2032), wherein the lower die (2032) is fixedly connected to the first mounting bracket (201), and the upper die (2031) is connected to the piston rod of the first electric cylinder (202); The material strip moves intermittently on the feeding track (100) via the traction device, and the top surface of the lower mold (2032) is on the same horizontal plane as the top surface of the feeding track (100).

2. The battery prismatic cell manufacturing based web gap blanking forming apparatus according to claim 1, characterized by: The first mounting bracket (201) has a connecting bracket (204) on its side wall. The connecting bracket (204) has a connecting plate (205). The connecting plate (205) has a first positioning plate (206) and a second positioning plate (207). The second positioning plate (207) is located above the first positioning plate (206). The top surface of the first positioning plate (206) is on the same horizontal plane as the top surface of the feeding track (100). There is a gap between the first positioning plate (206) and the second positioning plate (207), which corresponds to the thickness of the material strip.

3. The battery prismatic cell manufacturing based web gap blanking forming apparatus according to claim 1, characterized by: Also includes: A discharge conveyor belt (900) is located below the feeding track (100) and the punching equipment (200); A receiving trolley (700) is located at one end of the discharge conveyor belt (900); A guide plate (800) is located below the discharge conveyor belt (900). The guide plate (800) is inclined, and the receiving trolley (700) is located below the bottom of the inclined surface of the guide plate (800).

4. The battery prismatic cell manufacturing based web gap blanking forming apparatus according to claim 1, characterized by: Also includes: A feeding device (300) is provided at one end of the feeding track (100) for placing the rolled material strip; A leveling device (400) is located between the feeding device (300) and the feeding track (100). One end of the material belt on the feeding device (300) passes through the leveling device (400) and is placed on the feeding track (100).

5. The strip notch punching and forming device for battery prismatic shell manufacturing according to claim 4, characterized in that: The feeding device (300) includes: Support roller (302) is used to hold the rolled strip; The housing (301) has the support roller (302) rotatably connected to it; A first motor, mounted on the housing (301), is used to drive the support roller (302) to rotate.

6. The strip notch punching and forming device for battery prismatic shell manufacturing according to claim 5, characterized in that: The support roller (302) includes: The main spindle (3021) is rotatably connected to the chassis (301); Several fixing plates (3022) are connected to the main shaft (3021); the fixing plates (3022) have an arc-shaped structure. A movable plate (3026) is sleeved on the main shaft (3021) and connected to one end of the fixed plate (3022); The main shaft (3021) is provided with a first connecting rod (3023), and the fixed plate (3022) is provided with a second connecting rod (3024) and a plurality of first connecting blocks (3025). One end of the first connecting block (3025) is rotatably connected to the first connecting rod (3023), and the other end is rotatably connected to the second connecting rod (3024). One end of the fixed plate (3022) is provided with a second connecting block (3027), and the movable plate (3026) is provided with a movable groove (30261) for the second connecting block (3027) to move.

7. The strip notch punching and forming device for battery prismatic shell manufacturing according to claim 5, characterized in that: The feeding device (300) also includes: The first track (305) is partially located below the support roller (302) and connected to the housing (301); The movable block (303) is slidably connected to the first track (305); The placement platform (304) is disposed on the movable block (303) and moves together with the movable block (303) on the first track (305); A second electric cylinder (314) is mounted on the movable block (303) to drive the placement platform (304) to move up and down relative to the movable block (303).

8. The strip notch punching and forming apparatus for battery prismatic shell manufacturing according to claim 7, characterized in that: The feeding device (300) also includes: The first support frame and the second support frame are respectively disposed on both sides of the first track (305); Mounting rod (308), one end of which is rotatably connected to the first support frame; Mounting base (310) is provided on the mounting rod (308); A support base (311) is provided on the mounting base (310), and the support base (311) is located below one end of the support roller (302); The support base (311) is provided with a threaded rod (312), and the mounting base (310) is provided with a nut that cooperates with the threaded rod (312). When the nut rotates, it cooperates with the threaded rod (312) to drive the threaded rod (312) to drive the support base (311) to move up and down.

9. The strip notch punching and forming device for battery prismatic shell manufacturing according to claim 4, characterized in that: The traction device (500) includes: The second track (508) is located below the feeding track (100); The second mounting bracket (501) is slidably connected to the second track (508); The third electric cylinder (502) is mounted on the second mounting bracket (501); The first pressure block (504) is disposed on the piston rod of the third electric cylinder (502); After the third electric cylinder (502) drives the first pressure block (504) to press against the material belt on the feeding track (100), the second mounting bracket (501) moves along the second track (508) to drive the material belt to move on the feeding track (100).

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