Battery cell turnover folding device

Abstract

The utility model discloses a core turns over and folds the device, including respectively the transmission assembly and first bearing seat of installing bottom plate both ends, still install the drive mechanism on the one end of bottom plate, respectively with transmission assembly and first bearing seat transmission connection are equipped with the core turns over mechanism, install the opposite push -tight mechanism on the bottom plate, respectively opposite sliding install first lug forming mechanism and second lug forming mechanism are equipped with on the opposite push -tight mechanism. The utility model realizes the folding of two electric cores of being connected to each other and the automatic bending of lug simultaneously, avoids the phenomenon that lug breaks or the uneven transition of bending, realizes the even bending of lug, and the quality of core turning over and folding is good, to solve the electric core superposition device on the market because of lacking the setting mechanism of lug bending in the process of turning over and superimposing two electric cores, the problem that the electric core superposition effect is poor and the electric core superposition quality is poor is caused by the breakage of lug or the uneven transition of lug bending.

Description

Technical Field

[0001] This utility model relates to the field of folding devices, and more particularly to a cell flipping folding device. Background Technology

[0002] Stacking multiple battery cells together increases battery capacity and energy density. A tandem battery is an energy storage device created by combining multiple independent battery cells using specific structural designs and processes. Its core structural features include a flat stack composed of serrated, layered positive and negative electrode sheets and separators, as well as a cup-shaped sealing design to enhance structural tightness. Compared to traditional wound batteries, it boasts higher volumetric energy density and output voltage, and employs a layered thermal management system to enhance safety.

[0003] Currently, battery stacking mainly involves two battery cells and the connecting tabs between them. To reduce the size of the two batteries, they are usually folded together and then assembled into an aluminum-plastic casing for encapsulation. Traditionally, battery folding is done manually, with the tabs bent by hand and one cell stacked onto the other. Due to the randomness of manual bending, the tabs are not uniform in shape and have poor flatness, which can easily cause misalignment when the two cells are stacked. To improve the folding efficiency of the batteries, cell stacking devices have appeared on the market. These devices mainly consist of two flipping structures that flip and stack the two cells. However, these cell stacking devices lack a shaping mechanism for bending the tabs, which can easily cause the tabs to break or the bending transition to be uneven during the flipping and stacking process, resulting in poor cell stacking effect and poor cell stacking quality. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a cell flipping and folding device.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The battery cell flipping and folding device includes a base plate, a drive mechanism, a transmission assembly, a battery cell flipping mechanism, a first tab forming mechanism, a second tab forming mechanism, a support base, a counter-pushing mechanism, and a first bearing seat. The transmission assembly and the first bearing seat are respectively installed on both ends of the base plate, the drive mechanism is installed on one end of the base plate, and the drive mechanism is connected to the transmission assembly. The battery cell flipping mechanism is connected to the transmission assembly and the first bearing seat and is used to flip and fold the two connected battery cells in opposite directions. The counter-pushing mechanism is installed on the base plate and located below the battery cell flipping mechanism. The first tab forming mechanism and the second tab forming mechanism are respectively slidably installed on the counter-pushing mechanism and are used to bend and shape the tabs. The support base is installed on the base plate and is located between the first tab forming mechanism and the second tab forming mechanism. The support base is used to support the tabs of the two battery cells.

[0006] Preferably, the drive mechanism includes a drive device mounting base, on which a first reducer is mounted. One end of the first reducer is connected to a pair of folding drive devices, and the other end of the first reducer is equipped with a first drive gear.

[0007] Specifically, the transmission assembly includes a second bearing housing, a first driven gear, and a second driven gear. The second bearing housing is mounted on a base plate, and the first driven gear and the second driven gear are rotatably mounted on the same side of the second bearing housing. The first driven gear meshes with the second driven gear for transmission, and the first driven gear meshes with the first driving gear for transmission.

[0008] Specifically, the cell flipping mechanism includes a first rotating component and a second rotating component respectively rotatably mounted on a first bearing seat and a second bearing seat, and the first rotating component and the second rotating component are arranged in opposite directions and side by side. A first cell positioning component and a second cell positioning component are respectively mounted on the first rotating component and the second rotating component. The first cell positioning component and the second cell positioning component are arranged in the same direction and side by side and are respectively located on both sides of the support base.

[0009] The first rotating assembly includes a rotating frame, a first rotating shaft, a second driving gear, and a second rotating shaft. The first rotating shaft is mounted on one end of the rotating frame, the second driving gear is coaxially arranged with the first rotating shaft and is located inside the rotating frame, and the second rotating shaft is mounted on the other end of the rotating frame. The rotating frame is rotatably mounted on the second bearing seat and the first bearing seat via the first rotating shaft and the second rotating shaft.

[0010] The structure of the second rotating assembly is the same as that of the first rotating assembly;

[0011] The first cell positioning component is mounted on the rotating frame of the first rotating component, and the second cell positioning component is mounted on the rotating frame of the second rotating component.

[0012] Specifically, the first rotating shaft of the first rotating assembly is rotatably mounted on the second bearing seat, and the first rotating shaft of the first rotating assembly is coaxially arranged with the first driven gear, and the second rotating shaft of the first rotating assembly is rotatably mounted on the first bearing seat;

[0013] The first rotating shaft of the second rotating assembly is rotatably mounted on the first bearing seat, and the second rotating shaft of the second rotating assembly is rotatably mounted on the second bearing seat. The second rotating shaft of the second rotating assembly is coaxially arranged with the second driven gear.

[0014] Specifically, the first cell positioning assembly includes a reference base, a support base, a limiting block, and a limiting block driving device. The reference base, the support base, and the limiting block driving device are arranged sequentially along the same straight line, and the limiting block is installed on the output end of the limiting block driving device.

[0015] The structure and principle of the second cell positioning assembly are the same as those of the first cell positioning assembly. The reference base, support base, and limit block driving device of the first cell positioning assembly are mounted on the rotating frame of the first rotating assembly, and the reference base, support base, and limit block driving device of the second cell positioning assembly are mounted on the rotating frame of the second rotating assembly.

[0016] Specifically, the opposing push-tightening mechanism includes a first linear guide rail, a second linear guide rail, a double-helix ball screw, a driving synchronous pulley, a synchronous belt, a driven synchronous pulley, a second reducer, and a screw rotation drive device. The first and second linear guide rails are mounted parallel to each other on the base plate. The double-helix ball screw is rotatably mounted on the base plate, and the double-helix ball screw is arranged parallel to the first and second linear guide rails respectively. The second reducer and the screw rotation drive device are mounted on the base plate. One end of the second reducer is connected to the screw rotation drive device. The driving synchronous pulley is connected to the other end of the second reducer. The driven synchronous pulley is connected to the double-helix ball screw. The driving synchronous pulley is connected to the driven synchronous pulley via a synchronous belt.

[0017] Specifically, the first tab forming mechanism includes a slide table, a third bearing seat, a third rotating shaft, a third driven gear, a third driving gear, a fourth bearing seat, a fourth driven gear, a fifth driven gear, a first needle winding assembly, a second needle winding assembly, a pressure plate translation drive device, and a pressure plate. The slide table is slidably mounted on the first and second linear guides and is rotatably connected to the double-helix ball screw. The third and fourth bearing seats are respectively mounted on the two ends of the slide table. The third rotating shaft is laterally rotatably mounted on the third bearing seat. The third driven gear and the third driving gear are respectively connected to the two ends of the third rotating shaft. The first and second needle winding assemblies are coaxially connected and mounted on one side of the top of the fourth bearing seat, respectively, and are arranged in parallel. The fourth and fifth driven gears are connected and mounted to the first and second needle winding assemblies, respectively, and are located on the other side of the top of the fourth bearing seat. The fourth and fifth driven gears mesh and drive each other. The third driving gear meshes and drives the fourth driven gear. The pressure plate translation drive device is mounted on the fourth bearing seat, and the pressure plate is mounted on the output end of the pressure plate translation drive device.

[0018] The first needle winding assembly includes a fourth rotating shaft, a needle winding seat, and a needle winding. The fourth rotating shaft is rotatably mounted on a fourth bearing seat, the needle winding seat is mounted on one end of the fourth rotating shaft, and the needle winding is laterally eccentrically mounted on the needle winding seat.

[0019] The structure of the second needle winding assembly is the same as that of the first needle winding assembly. The other end of the fourth rotating shaft of the first needle winding assembly is coaxially connected and installed with the fourth driven gear, and the fourth rotating shaft of the second needle winding assembly is coaxially connected and installed with the fifth driven gear.

[0020] The structure and working principle of the second electrode forming mechanism are the same as those of the first electrode forming mechanism.

[0021] Specifically, the third driven gear of the first tab forming mechanism meshes with the second driving gear of the first rotating component, and the third driven gear of the second tab forming mechanism meshes with the second driving gear of the second rotating component.

[0022] Specifically, buffers are provided below the rotating frames of the first and second rotating components, and the buffers are fixed to the base plate by buffer mounting seats.

[0023] The first rotating assembly and the second rotating assembly are respectively equipped with a first sensing plate and a second sensing plate on one end of their rotating frames. The first bearing seat is respectively equipped with a first photoelectric sensor, a second photoelectric sensor, a third photoelectric sensor and a fourth photoelectric sensor. The first photoelectric sensor and the fourth photoelectric sensor are respectively located on the two side surfaces of the first bearing seat, and the second photoelectric sensor and the third photoelectric sensor are located on the top surface of the first bearing seat. The first sensing plate is used in conjunction with the first photoelectric sensor and the second photoelectric sensor, and the second sensing plate is used in conjunction with the third photoelectric sensor and the fourth photoelectric sensor.

[0024] Preferably, a controller or control system is provided for signal control of the drive mechanism, transmission assembly, cell flipping mechanism, first tab forming mechanism, second tab forming mechanism and opposing push-tightening mechanism, etc. The controller is a PLC programmable logic controller. The PLC programmable logic controller can be a programmable logic controller of model XDS-40T-D, but is not limited thereto.

[0025] Compared with existing technologies, the beneficial effects of this utility model are as follows: 1. By designing the structures of the drive mechanism, transmission component, cell flipping mechanism and opposing push-tightening mechanism respectively, and using the drive mechanism, transmission component, cell flipping mechanism and opposing push-tightening mechanism in combination, it can automatically flip and fold two cells that are placed on the first cell positioning component and the second cell positioning component respectively, and has the advantages of good flipping and folding synchronization, good flipping and folding effect and high flipping and folding efficiency.

[0026] 2. By providing a first tab forming mechanism and a second tab forming mechanism on the opposing pressing mechanism, and designing the structures of the first tab forming mechanism and the second tab forming mechanism respectively, the pressure plates of the first tab forming mechanism and the second tab forming mechanism fix the shims, so that the tabs will not shift during the bending and shaping process. This ensures the consistency of the bent shape of the tabs and avoids the phenomenon of the tabs breaking or uneven bending transition. This ensures that the tabs are bent and shaped smoothly and the cell flipping and folding quality is good. Moreover, it can automatically complete the bending of the tabs while flipping and folding two connected cells. This effectively solves the problem that the existing cell stacking devices on the market are prone to tab breakage or uneven bending transition during the flipping and stacking of two cells due to the lack of a shaping mechanism for bending the tabs, resulting in poor cell stacking effect and poor cell stacking quality. Attached Figure Description

[0027] For ease of explanation, the present invention will be described in detail below with reference to the preferred embodiments and accompanying drawings.

[0028] Figure 1 A three-dimensional view of the battery cell flipping and folding device of this utility model, showing two battery cells.

[0029] Figure 2 This is a perspective view of the battery cell flipping and folding device of this utility model.

[0030] Figure 3 This is a perspective view of the drive device and the first tab forming mechanism of the cell flipping and folding device of this utility model.

[0031] Figure 4 This utility model relates to a battery cell flipping and folding device. Figure 3 3D images from different angles.

[0032] Figure 5 This is a perspective view of the opposing pushing mechanism of the battery cell flipping and folding device of this utility model. Detailed Implementation

[0033] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0035] Reference Figure 1 As shown, the battery cell flipping and folding device of this utility model includes a base plate 1, a drive mechanism 2, a transmission assembly 3, a battery cell flipping mechanism 4, a first tab forming mechanism 5, a second tab forming mechanism 6, a support seat 7, a counter-pushing mechanism 8, and a first bearing seat 9. The transmission assembly 3 and the first bearing seat 9 are respectively installed on both ends of the base plate 1. The drive mechanism 2 is installed on one end of the base plate 1 and is connected to the transmission assembly 3. The battery cell flipping mechanism 4 is connected to the transmission assembly 3 and the first bearing seat 9 and is used to flip and fold the two connected battery cells 18 in opposite directions. The counter-pushing mechanism 8 is installed on the base plate 1 and is located below the battery cell flipping mechanism 4. The first tab forming mechanism 5 and the second tab forming mechanism 6 are respectively slidably installed on the counter-pushing mechanism 8 and are used to bend and shape the tabs. The support seat 7 is installed on the base plate 1 and is located between the first tab forming mechanism 5 and the second tab forming mechanism 6. The support seat 7 is used to support the tabs of the two battery cells 18.

[0036] Reference Figures 2 to 4As shown, the drive mechanism 2 includes a drive device mounting base 21, on which a first reducer 22 is mounted. One end of the first reducer 22 is connected to a folding drive device 23, and the other end of the first reducer 22 is equipped with a first drive gear 24.

[0037] By adopting the above technical solution, the folding drive device 23 drives the first drive gear 24 to rotate through the first reducer 22.

[0038] In this embodiment, the folding drive device 23 is preferably a servo motor.

[0039] Reference Figure 2 and Figure 3 As shown, the transmission assembly 3 includes a second bearing seat 31, a first driven gear 32 and a second driven gear 33. The second bearing seat 31 is mounted on the base plate 1. The first driven gear 32 and the second driven gear 33 are rotatably mounted on the same side of the second bearing seat 31. The first driven gear 32 and the second driven gear 33 mesh and transmit power. The first driven gear 32 meshes and transmits power with the first driving gear 24.

[0040] By adopting the above technical solution, the folding drive device 23 drives the first drive gear 24 to rotate through the first reducer 22, and the first drive gear 24 drives the second driven gear 33 to rotate through the first driven gear 32.

[0041] Reference Figure 2 As shown, the cell flipping mechanism 4 includes a first rotating component 41 and a second rotating component 42 respectively rotatably mounted on the first bearing seat 9 and the second bearing seat 31, and the first rotating component 41 and the second rotating component 42 are arranged in opposite directions and side by side. The first rotating component 41 and the second rotating component 42 are respectively mounted on the first rotating component 41 and the second rotating component 42, and the first rotating component 43 and the second rotating component 44 are arranged in the same direction and side by side and are respectively located on both sides of the support seat 7.

[0042] Reference Figure 2As shown, the first rotating assembly 41 includes a rotating frame 410, a first rotating shaft 411, a second driving gear 412, and a second rotating shaft 413. The first rotating shaft 411 is mounted on one end of the rotating frame 410. The second driving gear 412 is coaxially arranged with the first rotating shaft 411 and is located inside the rotating frame 410. The second rotating shaft 413 is mounted on the other end of the rotating frame 410. The rotating frame 410 is rotatably mounted on the second bearing seat 31 and the first bearing seat 9 via the first rotating shaft 411 and the second rotating shaft 413. The structure of the second rotating assembly 42 is the same as that of the first rotating assembly 41. The first battery cell positioning assembly 43 is mounted on the rotating frame 410 of the first rotating assembly 41, and the second battery cell positioning assembly 44 is mounted on the rotating frame 410 of the second rotating assembly 42.

[0043] Reference Figure 2 As shown, the first rotating shaft 411 of the first rotating assembly 41 is rotatably mounted on the second bearing seat 31, and the first rotating shaft 411 of the first rotating assembly 41 is coaxially arranged with the first driven gear 32. The second rotating shaft 413 of the first rotating assembly 41 is rotatably mounted on the first bearing seat 9. The first rotating shaft of the second rotating assembly 42 is rotatably mounted on the first bearing seat 9, and the second rotating shaft of the second rotating assembly 42 is rotatably mounted on the second bearing seat 31, and the second rotating shaft of the second rotating assembly 42 is coaxially arranged with the second driven gear 33.

[0044] By adopting the above technical solution, the folding drive device 23 drives the first drive gear 24 to rotate through the first reducer 22. Since the first driven gear 32 and the second driven gear 33 mesh and transmit power, the first drive gear 24 drives the second driven gear 33 to rotate through the first driven gear 32. The first driven gear 32 and the second driven gear 33 drive the rotating frame 410 of the first rotating assembly 41 and the second rotating assembly 42 to flip upward and close with each other through the first rotating shaft 411 of the first rotating assembly 41 and the second rotating shaft of the second rotating assembly 42, respectively. This achieves good synchronization of the flipping and closing of the two rotating frames 410 and high flipping and closing efficiency.

[0045] Reference Figure 2As shown, the first cell positioning assembly 43 includes a reference base 431, a support base 432, a limiting block 433, and a limiting block driving device 434. The reference base 431, the support base 432, and the limiting block driving device 434 are arranged sequentially along the same straight line, and the limiting block 433 is mounted on the output end of the limiting block driving device 434. The structure and working principle of the second cell positioning assembly 44 are the same as those of the first cell positioning assembly 43. The reference base 431, the support base 432, and the limiting block driving device 434 of the first cell positioning assembly 43 are mounted on the rotating frame 410 of the first rotating assembly 41, and the reference base 431, the support base 432, and the limiting block driving device 434 of the second cell positioning assembly 44 are mounted on the rotating frame 410 of the second rotating assembly 42.

[0046] By adopting the above technical solution, a single battery cell is placed on the reference base 431 and the support base 432. The battery cell takes the reference base 431 as the reference, and the limiting block driving device 434 drives the limiting block 433 to push the battery cell tightly onto the reference base 431 for fixed positioning. Two connected battery cells are respectively placed on the first battery cell positioning component 43 and the second battery cell positioning component 44. The first rotating component 41 and the second rotating component 42 flip and close in opposite directions, thereby driving the first battery cell positioning component 43 and the second battery cell positioning component 44 to flip and close in opposite directions, realizing the flipping and folding of two adjacent battery cells. It automatically flips and folds two connected battery cells, and has the advantages of good flipping and folding synchronization and good flipping and folding effect.

[0047] In this embodiment, the limiting block driving device 434 is preferably a cylinder.

[0048] Reference Figure 5 As shown, the opposing pushing mechanism 8 includes a first linear guide rail 81, a second linear guide rail 82, a double helical ball screw 83, a driving synchronous pulley 84, a synchronous belt 85, a driven synchronous pulley 86, a second reducer 87, and a screw rotation drive device 88. The first linear guide rail 81 and the second linear guide rail 82 are mounted parallel to each other on the base plate 1. The double helical ball screw 83 is rotatably mounted on the base plate 1, and the double helical ball screw 83 is arranged parallel to the first linear guide rail 81 and the second linear guide rail 82, respectively. The second reducer 87 and the screw rotation drive device 88 are mounted on the base plate 1. One end of the second reducer 87 is connected to the screw rotation drive device 88. The driving synchronous pulley 84 is connected to the other end of the second reducer 87. The driven synchronous pulley 86 is connected to the double helical ball screw 83. The driving synchronous pulley 84 is connected to the driven synchronous pulley 86 through the synchronous belt 85.

[0049] By adopting the above technical solution, the screw rotation drive device 88 drives the double helical ball screw 83 to rotate through the second reducer 87, the driving synchronous pulley 84, the synchronous belt 85 and the driven synchronous pulley 86.

[0050] In this embodiment, the lead screw rotation drive device 88 is preferably a servo motor.

[0051] Reference Figure 3 and Figure 4 As shown, the first tab forming mechanism 5 includes a slide table 51, a third bearing seat 52, a third rotating shaft 53, a third driven gear 54, a third driving gear 55, a fourth bearing seat 56, a fourth driven gear 57, a fifth driven gear 58, a first needle winding assembly 59, a second needle winding assembly 50, a pressure plate translation drive device 501, and a pressure plate 502. The slide table 51 is slidably mounted on the first linear guide rail 81 and the second linear guide rail 82, and the slide table 51 is rotatably connected to the double helical ball screw 83. The third bearing seat 52 and the fourth bearing seat 56... 6 are respectively mounted on the two ends of the slide table 51. The third rotating shaft 53 is laterally rotatably mounted on the third bearing seat 52. The third driven gear 54 and the third driving gear 55 are coaxially connected to the two ends of the third rotating shaft 53, respectively. The first needle winding assembly 59 and the second needle winding assembly 50 are laterally rotatably mounted on one side of the top of the fourth bearing seat 56, and the first needle winding assembly 59 and the second needle winding assembly 50 are arranged in parallel. The fourth driven gear 57 and the fifth driven gear 58 are respectively connected to the first needle winding assembly 59 and the second needle winding assembly 50. The fourth driven gear 57 and the fifth driven gear 58 are located on the other side of the top of the fourth bearing housing 56, and the fourth driven gear 57 and the fifth driven gear 58 mesh and drive each other. The third driving gear 55 meshes and drives the fourth driven gear 57. The pressure plate translation drive device 501 is mounted on the fourth bearing housing 56, and the pressure plate 502 is mounted on the output end of the pressure plate translation drive device 501. The first needle winding assembly 59 includes a fourth rotating shaft 591, a needle winding seat 592, and a needle winding 593. The fourth rotating shaft 591 is rotatably mounted on the fourth bearing housing 56. On seat 56, needle holder 592 is mounted on one end of fourth rotating shaft 591, and needle 593 is eccentrically mounted on needle holder 592 laterally; the structure of the second needle assembly 50 is the same as that of the first needle assembly 59, the other end of the fourth rotating shaft 591 of the first needle assembly 59 is coaxially connected and installed with the fourth driven gear 57, and the fourth rotating shaft of the second needle assembly 50 is coaxially connected and installed with the fifth driven gear 58; the structure and working principle of the second tab forming mechanism 6 are the same as those of the first tab forming mechanism 5.

[0052] By adopting the above technical solution, the screw rotation drive device 88 drives the double helical ball screw 83 to rotate through the second reducer 87, the driving synchronous pulley 84, the synchronous belt 85, and the driven synchronous pulley 86, thereby driving the first tab forming mechanism 5 and the second tab forming mechanism 6 to move closer or further apart; the shim is placed on the upper surface of the tab as a mold for bending and shaping the tab, and the pressure plate translation drive device 501 drives the pressure plate 502 to extend above the shim to fix the shim; the third driven gear 54 drives the third driving gear 55 to rotate through the third rotating shaft 53, and the third driving gear 55 drives the fifth driven gear 58 to rotate through the fourth driven gear 57, and the fourth driven gear 58... The moving gear 57 drives the needle holder 592 of the first needle winding assembly 59 to rotate. The needle holder 592 drives the needle 593 to swing around the axis of the fourth rotating shaft 591 in a circular trajectory. The fourth driven gear 57 and the fifth driven gear 58 respectively drive the needle 593 of the first needle winding assembly 59 and the needle of the second needle winding assembly 50 to swing in a semi-circular trajectory towards each other. This causes the needle 593 of the first needle winding assembly 59 and the needle of the second needle winding assembly 50 to press upward on the same side of both ends of the electrode tab, bending it into a U-shape. This achieves automated bending of the electrode tab and has the advantages of flat electrode tab bending, good electrode tab bending effect, and high electrode tab bending efficiency.

[0053] In this embodiment, the pressure plate translation drive device 501 is preferably a cylinder.

[0054] Reference Figure 3 As shown, the third driven gear 54 of the first tab forming mechanism 5 meshes with the second driving gear 412 of the first rotating component 41, and the third driven gear 54 of the second tab forming mechanism 6 meshes with the second driving gear 412 of the second rotating component 42.

[0055] By adopting the above technical solution, the opposing pushing mechanism 8 drives the first tab forming mechanism 5 and the second tab forming mechanism 6 to move closer to each other; the third driven gear 54 of the first tab forming mechanism 5 engages with the second driving gear 412 of the first rotating assembly 41 in a staggered meshing transmission, and the third driven gear 54 of the second tab forming mechanism 6 engages with the second driving gear 412 of the second rotating assembly 42 in a staggered meshing transmission. When the first needle winding assembly 59 and the second needle winding assembly 50 of the first tab forming mechanism 5 are inserted below one side of the tab, and the first needle winding assembly 59 and the second needle winding assembly 50 of the second tab forming mechanism 6 are inserted below the other side of the tab, the first tab forming machine... The pressure plate translation drive device 501 of the first electrode forming mechanism 5 and the second electrode forming mechanism 6 respectively drives the corresponding pressure plate 502 to extend to the upper surface of the pad to fix the pad. The drive mechanism 2 drives the first rotating component 41 and the second rotating component 42 to flip in opposite directions, thereby driving the first battery cell positioning component 43 and the second battery cell positioning component 44 to flip in opposite directions. The two batteries achieve flipping and folding. At the same time, the first electrode forming mechanism 5 and the second electrode forming mechanism 6 simultaneously press the same side of both ends of the electrode to bend it into a U-shape around the pad. The pad is fixed by the pressure plate 502 of the first electrode forming mechanism 5 and the second electrode forming mechanism 6, so that the electrode will not shift during the bending and shaping process, thereby avoiding the phenomenon of the electrode breaking or uneven bending transition.

[0056] It employs a counter-pushing mechanism 8 to drive the first tab forming mechanism 5 and the second tab forming mechanism 6 to approach each other and synchronously advance the winding needles 593 on both sides of the tab, ensuring good synchronization of the advancement of the winding needles 593 on both sides of the tab. It also employs a driving mechanism 2 to drive the first cell positioning component 43 and the second cell positioning component 44 of the cell flipping mechanism 4 to synchronously flip and fold the two connected cells towards each other. At the same time, it drives the first tab forming mechanism 5 and the second tab forming mechanism 6 to synchronously press the same side of both ends of the tab to bend it into a U-shape around the pad. The synchronous flipping and folding of the two cells towards each other ensures good synchronization, achieves flat bending and shaping of the tab, and ensures good quality of cell flipping and folding. It solves the problem that the existing cell stacking devices on the market are prone to tab breakage or uneven bending transition during the flipping and stacking process due to the lack of a shaping mechanism for bending the tab, resulting in poor cell stacking effect and poor quality.

[0057] Reference Figure 2As shown, a buffer 10 is provided below the rotating frame 410 of the first rotating assembly 41 and the second rotating assembly 42, and the buffer 10 is fixedly installed on the base plate 1 by the buffer mounting seat 11; a first sensing plate 12 and a second sensing plate 13 are respectively installed on one end of the rotating frame 410 of the first rotating assembly 41 and the second rotating assembly 42; a first photoelectric sensor 14, a second photoelectric sensor 15, a third photoelectric sensor 16 and a fourth photoelectric sensor 17 are respectively installed on the first bearing seat 9; the first photoelectric sensor 14 and the fourth photoelectric sensor 17 are respectively located on the two sides of the first bearing seat 9; the second photoelectric sensor 15 and the third photoelectric sensor 16 are located on the top surface of the first bearing seat 9; the first sensing plate 12 is used in conjunction with the first photoelectric sensor 14 and the second photoelectric sensor 15; and the second sensing plate 13 is used in conjunction with the third photoelectric sensor 16 and the fourth photoelectric sensor 17.

[0058] By adopting the above technical solution, the buffer 10 buffers the reverse downward flipping reset of the rotating frame 410 of the first rotating assembly 41 and the second rotating assembly 42; the first photoelectric sensor 14 and the fourth photoelectric sensor 17 are used to detect the initial position of the rotating frame 410 of the first rotating assembly 41 and the second rotating assembly 42 before they flip towards each other; the second photoelectric sensor 15 and the third photoelectric sensor 16 are used to detect the position of the rotating frame 410 of the first rotating assembly 41 and the second rotating assembly 42 when they flip towards each other and close together. By detecting the beginning and end positions of the flipping of the rotating frame 410 of the first rotating assembly 41 and the second rotating assembly 42, the flipping stroke of the rotating frame 410 of the first rotating assembly 41 and the second rotating assembly 42 can be precisely controlled, thereby further ensuring good cell stacking effect and good cell stacking quality.

[0059] Reference Figure 5 As shown, in this embodiment, a sensor mounting base 18 is also installed on one end of the base plate 1, and the sensor mounting base 18 is located on one side of the end of the second linear guide rail 82. A third sensing plate 19 is installed on the same side of the slide table 51, and a fifth photoelectric sensor 181 is provided on the sensor mounting base 18 to cooperate with the third sensing plate 19.

[0060] The above embodiments are merely examples of this utility model and are not intended to limit the implementation and scope of this utility model. All technical solutions that are the same as or equivalent to the contents described in the claims of this utility model should be included within the protection scope of this utility model.

Claims

1. A cell flipping and folding device, including a base plate, characterized in that: It also includes a drive mechanism, a transmission assembly, a cell flipping mechanism, a first electrode forming mechanism, a second electrode forming mechanism, a support base, an opposing push-tightening mechanism, and a first bearing housing. The transmission assembly and the first bearing housing are respectively mounted on both ends of the base plate; The drive mechanism is mounted on one end of the base plate and is connected to the transmission assembly. The cell flipping mechanism is connected to the transmission assembly and the first bearing seat respectively and is used to flip and fold the two connected cells in opposite directions. The opposing push-tightening mechanism is mounted on the base plate and located below the cell flipping mechanism; The first electrode forming mechanism and the second electrode forming mechanism are respectively slidably mounted on the opposing pushing mechanism and are used to bend and shape the electrode. The support base is mounted on the base plate and is located between the first electrode forming mechanism and the second electrode forming mechanism. The support base is used to support the electrodes of the two battery cells.

2. The cell flipping and folding device according to claim 1, characterized in that: The drive mechanism includes a drive device mounting base, on which a first reducer is mounted. One end of the first reducer is connected to a pair of folding drive devices, and the other end of the first reducer is equipped with a first drive gear.

3. The cell flipping and folding device according to claim 2, characterized in that: The transmission assembly includes a second bearing housing, a first driven gear, and a second driven gear. The second bearing housing is mounted on a base plate, and the first driven gear and the second driven gear are rotatably mounted on the same side of the second bearing housing. The first driven gear meshes with the second driven gear for transmission, and the first driven gear meshes with the first driving gear for transmission.

4. The cell flipping and folding device according to claim 3, characterized in that: The cell flipping mechanism includes a first rotating component and a second rotating component respectively rotatably mounted on a first bearing seat and a second bearing seat, and the first rotating component and the second rotating component are arranged in opposite directions and side by side. A first cell positioning component and a second cell positioning component are respectively mounted on the first rotating component and the second rotating component. The first cell positioning component and the second cell positioning component are arranged in the same direction and side by side and are respectively located on both sides of the support seat. The first rotating assembly includes a rotating frame, a first rotating shaft, a second driving gear, and a second rotating shaft. The first rotating shaft is mounted on one end of the rotating frame, the second driving gear is coaxially arranged with the first rotating shaft and is located inside the rotating frame, and the second rotating shaft is mounted on the other end of the rotating frame. The rotating frame is rotatably mounted on the second bearing seat and the first bearing seat via the first rotating shaft and the second rotating shaft. The structure of the second rotating assembly is the same as that of the first rotating assembly; The first cell positioning component is mounted on the rotating frame of the first rotating component, and the second cell positioning component is mounted on the rotating frame of the second rotating component.

5. The cell flipping and folding device according to claim 4, characterized in that: The first rotating shaft of the first rotating assembly is rotatably mounted on the second bearing seat, and the first rotating shaft of the first rotating assembly is coaxially arranged with the first driven gear; the second rotating shaft of the first rotating assembly is rotatably mounted on the first bearing seat. The first rotating shaft of the second rotating assembly is rotatably mounted on the first bearing seat, and the second rotating shaft of the second rotating assembly is rotatably mounted on the second bearing seat. The second rotating shaft of the second rotating assembly is coaxially arranged with the second driven gear.

6. The cell flipping and folding device according to claim 5, characterized in that: The first cell positioning assembly includes a reference base, a support base, a limiting block, and a limiting block driving device. The reference base, the support base, and the limiting block driving device are arranged sequentially along the same straight line, and the limiting block is installed on the output end of the limiting block driving device. The structure and principle of the second cell positioning assembly are the same as those of the first cell positioning assembly. The reference base, support base, and limit block driving device of the first cell positioning assembly are mounted on the rotating frame of the first rotating assembly, and the reference base, support base, and limit block driving device of the second cell positioning assembly are mounted on the rotating frame of the second rotating assembly.

7. The cell flipping and folding device according to claim 6, characterized in that: The opposing push-tightening mechanism includes a first linear guide rail, a second linear guide rail, a double-helix ball screw, a driving synchronous pulley, a synchronous belt, a driven synchronous pulley, a second reducer, and a screw rotation drive device. The first and second linear guide rails are mounted parallel to each other on the base plate. The double-helix ball screw is rotatably mounted on the base plate, and the double-helix ball screw is arranged parallel to the first and second linear guide rails respectively. The second reducer and the screw rotation drive device are mounted on the base plate. One end of the second reducer is connected to the screw rotation drive device. The driving synchronous pulley is connected to the other end of the second reducer. The driven synchronous pulley is connected to the double-helix ball screw. The driving synchronous pulley is connected to the driven synchronous pulley via a synchronous belt.

8. The cell flipping and folding device according to claim 7, characterized in that: The first tab forming mechanism includes a slide table, a third bearing housing, a third rotating shaft, a third driven gear, a third driving gear, a fourth bearing housing, a fourth driven gear, a fifth driven gear, a first needle winding assembly, a second needle winding assembly, a pressure plate translation drive device, and a pressure plate. The slide table is slidably mounted on the first and second linear guides and is rotatably connected to a double-helix ball screw. The third and fourth bearing housings are respectively mounted on the two ends of the slide table. The third rotating shaft is laterally rotatably mounted on the third bearing housing. The third driven gear and the third driving gear are coaxial with the two ends of the third rotating shaft, respectively. The first and second needle winding assemblies are respectively rotatably mounted on one side of the top of the fourth bearing seat, and the first and second needle winding assemblies are arranged in parallel. The fourth and fifth driven gears are respectively connected and installed to the first and second needle winding assemblies, and the fourth and fifth driven gears are located on the other side of the top of the fourth bearing seat. The fourth and fifth driven gears mesh and drive each other. The third driving gear meshes and drives the fourth driven gear. The pressure plate translation drive device is mounted on the fourth bearing seat, and the pressure plate is mounted on the output end of the pressure plate translation drive device. The first needle winding assembly includes a fourth rotating shaft, a needle winding seat, and a needle winding. The fourth rotating shaft is rotatably mounted on a fourth bearing seat, the needle winding seat is mounted on one end of the fourth rotating shaft, and the needle winding is laterally eccentrically mounted on the needle winding seat. The structure of the second needle winding assembly is the same as that of the first needle winding assembly. The other end of the fourth rotating shaft of the first needle winding assembly is coaxially connected and installed with the fourth driven gear, and the fourth rotating shaft of the second needle winding assembly is coaxially connected and installed with the fifth driven gear. The structure and working principle of the second electrode forming mechanism are the same as those of the first electrode forming mechanism.

9. The cell flipping and folding device according to claim 8, characterized in that: The third driven gear of the first tab forming mechanism meshes with the second driving gear of the first rotating component, and the third driven gear of the second tab forming mechanism meshes with the second driving gear of the second rotating component.

10. The cell flipping and folding device according to claim 9, characterized in that: The first rotating assembly and the second rotating assembly are respectively provided with buffers below their rotating frames, and the buffers are fixed to the base plate by buffer mounting seats; The first rotating assembly and the second rotating assembly are respectively equipped with a first sensing plate and a second sensing plate on one end of their rotating frames. The first bearing seat is respectively equipped with a first photoelectric sensor, a second photoelectric sensor, a third photoelectric sensor and a fourth photoelectric sensor. The first photoelectric sensor and the fourth photoelectric sensor are respectively located on the two side surfaces of the first bearing seat, and the second photoelectric sensor and the third photoelectric sensor are located on the top surface of the first bearing seat. The first sensing plate is used in conjunction with the first photoelectric sensor and the second photoelectric sensor, and the second sensing plate is used in conjunction with the third photoelectric sensor and the fourth photoelectric sensor.

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