Battery cell tab folding device

By designing a flipping and flattening mechanism for the battery cell tab folding device, the problem of tab warping was solved, and the tabs were flattened and their orientation adjusted, which facilitates subsequent processing of the battery cell.

CN223629258UActive Publication Date: 2025-12-05HUNAN HAPPY TIMES NEW ENERGY CO LTD
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Patent Information

Application Number
CN202423240796.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-27
Publication Date
2025-12-05
Estimated Expiration
2034-12-27

AI Technical Summary

Technical Problem

In the existing technology, during the folding process of the battery cell, the tabs are prone to warping, and the existing flattening method causes defects at the warped edges.

Method used

A battery cell tab folding device was designed, comprising a third transport mechanism, a tab folding mechanism, a flipping mechanism, a flattening mechanism, and a rotating mechanism. The device flips, flattens, and rotates the battery cell through mechanical clamping and a control system to ensure that the tab shape meets the requirements of subsequent processing.

Benefits of technology

This achieves flattening of the electrode tabs, avoids warping, meets the directional requirements of subsequent processes, and facilitates the collection of battery cells and processing in the next step.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of battery cells, and discloses a battery cell tab folding device which comprises a third conveying mechanism for conveying the battery cells, a tab folding mechanism for folding tabs of the battery cells, an overturning mechanism for pressing and overturning the battery cells after the tabs are folded, and a flattening mechanism for flattening the tabs of the overturned battery cells, the rotating mechanism is used for rotating the flattened battery cell; the discharging conveying belt is used for discharging the rotated battery cell; the third conveying mechanism is used for conveying the battery cells from the feeding area to the processing positions of all procedures; the tab folding mechanism is used for folding tabs on the battery cells to ensure that the shapes of the tabs meet the subsequent processing requirements; the turnover mechanism is used for carrying out turnover operation on the folded battery cell so as to facilitate the subsequent tab flattening process; the flattening mechanism is used for flattening the turned battery cell tabs to ensure that the surfaces of the tabs are flat and have no warping phenomenon; and the rotating mechanism is used for rotating and adjusting the flattened battery cell so as to meet the direction requirements of subsequent blanking and other working procedures.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric core, and the utility model discloses a kind of electric core earfolding device. BACKGROUND

[0002] Electric core earfolding device is a kind of equipment specially used in lithium battery manufacturing process, which folds the conductive metal part of the positive and negative electrode of the electric core ear;Its main function is to fold and shape the ear of the electric core according to the process requirements through mechanical structure and control system, to meet the needs of subsequent assembly or welding of the electric core;

[0003] The current market has the following problems: the current electric core earfolding device is prone to edge lifting after earfolding, so it needs to be flattened, but the existing flattening is generally direct flattening, which can cause defects at the edge lifting position.

[0004] The technical problem solved by the utility model is to provide an electric core earfolding device that flattens the electric core after turning it over. UTILITY MODEL CONTENTS

[0005] The technical problem solved by the utility model is to provide an electric core earfolding device that flattens the electric core after turning it over;The third conveying mechanism is used to convey the electric core from the loading area to the processing position of each process;The earfolding mechanism folds the ear on the electric core to ensure that the shape of the ear meets the subsequent processing requirements;The turning mechanism turns the folded electric core to facilitate the subsequent ear flattening process;The flattening mechanism flattens the ear of the turned electric core to ensure that the surface of the ear is flat without warping;The rotating mechanism adjusts the rotation of the flattened electric core to meet the direction requirements of subsequent unloading and other processes;The unloading conveyor belt conveys the electric core after rotation adjustment to the unloading area for collection or entering the next process.

[0006] An electric core earfolding device includes a third conveying mechanism for conveying the electric core, an earfolding mechanism for earfolding the electric core, a turning mechanism for flattening the electric core after earfolding, a flattening mechanism for flattening the ear of the turned electric core, a rotating mechanism for rotating the flattened electric core, and an unloading conveyor belt for unloading the rotated electric core.

[0007] Preferably, the folding tab mechanism comprises a horizontally arranged folding tab rack; a plurality of second battery cell bearing seats for bearing the battery cell are arranged on the folding tab rack; two folding tab air cylinders are arranged above the folding tab rack; the piston rods of the folding tab air cylinders are connected with pressing block mounting seats; a plurality of folding tab pressing blocks for folding the tab are arranged on the bottom of the pressing block mounting seat; the second battery cell mounting seat is formed with pressing block grooves corresponding to the folding tab pressing blocks; the folding tab air cylinders drive the folding tab pressing blocks to press down into the pressing block grooves, so as to fold the tabs of the battery cell.

[0008] Preferably, the two sides of the second battery cell bearing seat are provided with downwardly inclined pressing-down guide blocks; the two sides of the folding tab pressing block are provided with pressing-down rollers; when the folding tab air cylinders drive the pressing block mounting seat to press down, the pressing-down rollers slide downward along the pressing-down guide blocks for guidance.

[0009] Preferably, the turnover mechanism comprises a horizontally arranged turnover rack; the two sides of the turnover rack are respectively provided with a first turnover side frame and a second turnover side frame; a plurality of third battery cell bearing seats for bearing the battery cell are arranged on the turnover rack; fourth battery cell bearing seats are arranged between adjacent third battery cell bearing seats; the third battery cell bearing seats and the fourth battery cell bearing seats are reversely arranged.

[0010] The first turnover side frame and the second turnover side frame are both provided with seventh lifting air cylinders with piston rods arranged upward; the piston rods of the seventh lifting air cylinders are connected with turnover mounting plates; a plurality of third rotary air cylinders are arranged on the turnover mounting plates; the third rotary air cylinders are connected with clamping air cylinders; the third rotary air cylinders drive the clamping air cylinders to clamp and turn the battery cell.

[0011] Preferably, an eighth lifting air cylinder is fixedly arranged on the bottom of the turnover rack; the piston rod of the eighth lifting air cylinder is connected with the bottom of the turnover rack; the eighth lifting air cylinder drives the turnover rack to reciprocate up and down.

[0012] Preferably, the leveling mechanism comprises a horizontally arranged leveling rack; a plurality of positioning seats for positioning the battery cell are arranged on the top of the leveling rack; the tabs at both ends of the battery cell are arranged on the two sides of the positioning seat; two leveling air cylinders are arranged above the leveling rack; the piston rods of the leveling air cylinders are connected with leveling mounting plates; a plurality of leveling pressing blocks are arranged on the bottom of the leveling mounting plate; the leveling air cylinders drive the leveling pressing blocks to press down and flatten the tabs at both ends of the battery cell.

[0013] Preferably, the third conveying mechanism comprises a horizontal conveying rack; a fourth guide rail is horizontally arranged on the conveying rack; a fourth linear module is arranged on the side of the conveying rack; a second connecting plate is slidably arranged on the fourth guide rail; the second connecting plate is fixedly connected with the slider of the fourth linear module, so that the fourth linear module drives the second connecting plate to reciprocate; a plurality of sixth adsorption plates are arranged on the second connecting plate at intervals; and the sixth adsorption plates extend above the battery cell, so that the battery cell can be adsorbed and conveyed.

[0014] Preferably, the rotating mechanism comprises a third connecting plate arranged on the second connecting plate; a fourth rotating air cylinder is arranged at the bottom of the third connecting plate; and a seventh adsorption plate is connected with the fourth rotating air cylinder; the fourth rotating air cylinder drives the seventh adsorption plate to rotate, so that the battery cell is rotated after being adsorbed by the seventh adsorption plate.

[0015] Compared with the prior art, the battery cell tab folding device has the beneficial effects that: the third conveying mechanism is used for conveying the battery cell from the feeding area to the processing position of each process; the tab folding mechanism folds the tabs on the battery cell to ensure that the tab shape meets the subsequent processing requirements; the turnover mechanism turns over the folded battery cell to facilitate the subsequent tab flattening process; the flattening mechanism flattens the tabs of the turned-over battery cell to ensure that the tab surface is flat and free of warping; the rotating mechanism adjusts the rotation of the flattened battery cell to meet the direction requirements of the subsequent discharging and other processes; and the discharging conveyor belt conveys the battery cell after rotation adjustment to the discharging area for collection or entering the next process.

[0016] The additional aspects and advantages of the present application will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0018] Figure 1 is a schematic view of the overall structure of the present application.

[0019] Figure 2 is another angle structure schematic view of the present application Figure 1 .

[0020] Figure 3 is a schematic view of the third conveying mechanism structure of the present application.

[0021] Figure 4 is another angle structure schematic view of the utility model Figure 3 .

[0022] Figure 5 is the folding tab mechanism structure schematic view of the utility model

[0023] Figure 6 is another angle structure schematic view of the utility model Figure 5 .

[0024] Figure 7 is the C place amplification structure schematic view of the utility model Figure 6 .

[0025] Figure 8 is the straightening mechanism structure schematic view of the utility model

[0026] Figure 9 is the turnover mechanism structure schematic view of the utility model

[0027] In the drawing: E1, folding tab rack;E2, second electric core bearing seat;E3, folding tab cylinder;E4, briquetting mounting seat;E5, folding tab briquetting;E6, briquetting recess;E7, down-pressing guide block;E8, down-pressing roller;E9, turnover rack;E10, first turnover side frame;E11, second turnover side frame;E12, third electric core bearing seat;E13, fourth electric core bearing seat;E14, seventh lifting cylinder;E15, turnover mounting plate;E16, third rotary cylinder;E17, clamping cylinder;E18, eighth lifting cylinder;E19, third connecting plate;E20, fourth rotary cylinder;E21, seventh adsorption plate;D6, straightening rack;D7, positioning seat;D8, straightening cylinder;D9, straightening mounting plate;D10, straightening briquetting;D14, transport rack;D15, fourth guide rail;D16, fourth linear module;D17, second connecting plate. DETAILED DESCRIPTION

[0028] The technical scheme in the embodiments of the utility model will be described clearly and completely below, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative efforts belong to the scope of protection of the utility model.

[0029] It should be noted that the terms "first", "second", and the like in the present utility model are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the disclosure described herein can be implemented in an order other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure.

[0030] Please refer to Figures 1-9 In the embodiments of the present utility model, an electric core ear folding device comprises a third conveying mechanism for conveying electric cores, an ear folding mechanism for folding the ears of the electric cores, a turnover mechanism for turning over the electric cores after ear folding, a flattening mechanism for flattening the ears of the electric cores after turnover, a rotating mechanism for rotating the electric cores after flattening, and a discharging conveyor belt for discharging the electric cores after rotation.

[0031] Specifically, the third conveying mechanism is used to convey the electric cores from the feeding area to the processing positions of each process; the conveying belt or linear guide rail system is used to ensure the stable transmission of the electric cores; the ear folding mechanism is used to fold the ears of the electric cores to ensure that the shape of the ears meets the subsequent processing requirements; the mechanical clamp or servo-driven bending structure is used to realize precise control; the turnover mechanism is used to turn over the folded electric cores to facilitate the subsequent ear flattening process; the mechanical arm, rotary table or special clamp can be used for turnover; the flattening mechanism is used to flatten the ears of the turned-over electric cores to ensure that the surface of the ears is flat without warping; the cylinder or servo motor driven pressure head is used in combination with the constant temperature hot press plate to improve the flattening effect; the rotating mechanism is used to rotate and adjust the flattened electric cores to meet the direction requirements of the subsequent discharging and other processes; the servo motor or rotary cylinder driven rotating platform is used to ensure the rotation accuracy; the discharging conveyor belt is used to convey the electric cores after rotation and adjustment to the discharging area for easy collection or entering the next process; the photoelectric sensing device can be provided on the conveyor belt to realize precise positioning and automatic counting.

[0032] Further, the ear folding mechanism comprises a horizontally arranged ear folding rack E1; a plurality of second electric core bearing seats E2 for bearing the electric cores are arranged at intervals on the ear folding rack E1; two ear folding cylinders E3 are arranged at intervals above the ear folding rack E1; the piston rods of the ear folding cylinders E3 are each connected with a pressure block mounting seat E4; a plurality of ear folding pressure blocks E5 for ear folding are arranged at the bottom of the pressure block mounting seat E4; the second electric core mounting seat is formed with pressure block grooves E6 corresponding to the ear folding pressure blocks E5; the ear folding pressure blocks E5 are pressed down into the pressure block grooves E6 by the ear folding cylinders E3, so as to bend the ears of the electric cores.

[0033] Specifically, the support frame of the folding tab rack E1 is horizontally arranged to carry and fix other components; the structure is stable to ensure no vibration or deviation during operation; the second battery cell carrier E2 is arranged on the folding tab rack E1 and is spaced to place the battery cell to be processed; it has positioning function to ensure the stability of the battery cell during folding tab process; the carrier seat is designed with a groove or clamp matching the size of the battery cell to prevent movement; the folding tab cylinder E3 is vertically installed above the folding tab rack E1 and is arranged in two or more along the rack; the piston rod is driven by air pressure to move up and down to provide the required pressure for folding tab; each cylinder is independently controlled to adapt to different process requirements; the pressing block mounting seat E4 is fixed at the end of the piston rod of the folding tab cylinder E3 to install the folding tab pressing block E5; the structure is precise to ensure the verticality and stability of the pressing block during pressing; the folding tab pressing block E5 is installed at the bottom of the pressing block mounting seat E4 and corresponds to the position of the tab of the battery cell; it is designed as a flat surface or a specific arc shape according to the folding requirement of the tab to ensure consistent folding angle; the material is high-hardness and wear-resistant metal or composite material to prolong the service life; the pressing block groove E6 is a groove formed on the second battery cell carrier E2 and matches the shape of the folding tab pressing block E5; it provides space for pressing during folding tab process to ensure folding accuracy.

[0034] Further, the second battery cell carrier E2 is provided with downwardly inclined pressing guide blocks E7 on both sides; the folding tab pressing block E5 is provided with pressing rollers E8 on both sides; and when the folding tab cylinder E3 drives the pressing block mounting seat E4 to press down, the pressing rollers E8 slide downward along the pressing guide blocks E7 for guidance.

[0035] Specifically, the pressing guide blocks E7 are arranged on both sides of the second battery cell carrier E2 and are arranged at a certain angle downwardly; they provide a guide path to ensure that the folding tab pressing block E5 moves stably and accurately during pressing; the pressing rollers E8 are symmetrically installed on both sides of the folding tab pressing block E5 and cooperate with the pressing guide blocks E7; when the folding tab cylinder E3 drives pressing, they slide along the pressing guide blocks E7 to play a guiding and supporting role to prevent the folding tab pressing block E5 from deviating laterally; the rollers are made of wear-resistant rubber or metal structure with bearings to achieve smooth sliding.

[0036] Further, the turnover mechanism includes a horizontally arranged turnover rack E9; the first turnover side frame E10 and the second turnover side frame E11 are arranged on both sides of the turnover rack E9; the third battery cell carrier E12 for carrying the battery cell is arranged on the turnover rack E9; the fourth battery cell carrier E13 is arranged between adjacent third battery cell carriers E12; and the third battery cell carrier E12 and the fourth battery cell carrier E13 are arranged in opposite directions.

[0037] And the first turnover side frame E10 and the second turnover side frame E11 are both provided with the seventh lifting cylinder E14 with the piston rod arranged upwards; and the piston rod of the seventh lifting cylinder E14 is connected with the turnover mounting plate E15; and the turnover mounting plate E15 is provided with a plurality of third rotary cylinders E16 at intervals; and the third rotary cylinder E16 is connected with the clamping cylinder E17; the third rotary cylinder E16 drives the clamping cylinder E17 to clamp and turn the battery cell.

[0038] Specifically, the frame structure horizontally arranged on the turnover frame serves as the overall support of the turnover mechanism; it has high strength and high stability, ensuring no deformation or vibration during turnover; the first turnover side frame E10 and the second turnover side frame E11 are symmetrically arranged on both sides of the turnover frame E9, used for mounting the lifting and turnover assembly; it is designed as a modular structure, facilitating assembly and maintenance; the third battery cell bearing seat E12 is arranged on the turnover frame E9 at intervals, used for fixing the battery cell for turnover operation; it is arranged upwards along the horizontal plane, suitable for the initial state of turnover; the third rotary cylinder E16 on the first turnover side frame E10 turns the battery cell on the third battery cell bearing seat E12; the fourth battery cell bearing seat E13 is arranged staggered with the third battery cell bearing seat E12, and the third rotary cylinder E16 on the second turnover side frame E11 turns the battery cell on the fourth battery cell bearing seat E13; the seventh lifting cylinder E14 is respectively mounted on the first turnover side frame E10 and the second turnover side frame E11, with the piston rod arranged upwards; it drives the turnover mounting plate E15 to move vertically, adjusting the working height of the turnover assembly; the turnover mounting plate E15 is fixed on the piston rod of the seventh lifting cylinder E14, serving as a platform for mounting other turnover driving assemblies; the third rotary cylinder E16 is arranged on the turnover mounting plate E15 at intervals; it drives the battery cell to turn, providing precise rotary motion; the clamping cylinder E17 is connected to the output end of the third rotary cylinder E16, used for clamping the battery cell; it clamps the battery cell through the clamping jaw, ensuring that the battery cell is fixed during turnover.

[0039] Further, the bottom of the turnover frame E9 is fixedly provided with the eighth lifting cylinder E18; and the piston rod of the eighth lifting cylinder E18 is connected with the bottom of the turnover frame E9; the eighth lifting cylinder E18 drives the turnover frame E9 to move up and down reciprocally.

[0040] Specifically, the eighth lifting cylinder E18 is fixedly mounted on the base of the turnover mechanism, with the piston rod upwards and rigidly connected with the bottom of the turnover frame E9; it drives the turnover frame E9 to move up and down reciprocally, adjusting the overall working height of the turnover mechanism; the turnover frame E9 increases the overall lifting function on the basis of the original bearing turnover mechanism; the piston rod of the eighth lifting cylinder E18 is connected through the reinforced structural member, ensuring the stability and anti-deviation ability during lifting.

[0041] Further, the leveling mechanism includes a horizontally arranged leveling rack D6; and a plurality of positioning seats D7 for positioning the battery cell are arranged at the top of the leveling rack D6, and the two end tabs of the battery cell are arranged on the two sides of the positioning seat D7; and two leveling cylinders D8 are arranged above the leveling rack D6; and the piston rods of the leveling cylinders D8 are connected with leveling mounting plates D9; and a plurality of leveling pressing blocks D10 are arranged on the bottom of the leveling mounting plate D9; and the leveling pressing blocks D10 are driven downward by the leveling cylinders D8 to press the two end tabs of the battery cell.

[0042] Specifically, the leveling rack D6 provides support and fixing, ensuring that the battery cell can be stably positioned during the leveling process; the horizontal arrangement of the rack ensures the accuracy of the leveling action, so that the leveling pressing blocks D10 can uniformly act on the two end tabs of the battery cell; the positioning seats D7 are arranged at intervals, so that the battery cell can be accurately placed in a fixed position; the two end tabs of the battery cell are arranged on the two sides of the positioning seat D7, ensuring that the battery cell remains stable during the leveling process and does not shift or change position; the design of the positioning seat D7 ensures that each battery cell can achieve consistent leveling effect; the leveling cylinder D8 provides a vertical pushing force through its piston rod, controlling the up-down movement of the leveling mounting plate D9; the design of the leveling cylinder D8 ensures that the leveling pressing blocks D10 can be accurately pressed down, applying uniform pressure on the tabs of the battery cell to achieve tab flattening; the leveling mounting plate D9 is used to connect the piston rod of the leveling cylinder D8 and is driven by the cylinder to perform the actual leveling operation; the mounting plate ensures that the leveling pressing blocks D10 are uniformly distributed, providing stable pressure; the leveling pressing blocks D10 are the components that directly contact the tabs of the battery cell, and they are arranged in an array at the bottom of the leveling mounting plate D9; when the leveling cylinder D8 drives the leveling mounting plate D9 to move up and down, the leveling pressing blocks D10 will press down the tabs of the battery cell to flatten them; the pressing blocks ensure that uniform pressure is applied to the tabs of the battery cell, avoiding indentation or damage to the battery cell.

[0043] Further, the third transportation mechanism includes a horizontally arranged transportation rack D14; and a fourth guide rail D15 is arranged horizontally on the transportation rack D14; and a fourth linear module D16 is arranged on the side surface of the transportation rack D14; and the second connecting plate D17 is slidably connected with the fourth guide rail D15; and the second connecting plate D17 is fixedly connected with the slider of the fourth linear module D16, so that the fourth linear module D16 drives the second connecting plate D17 to reciprocate; and a plurality of sixth suction plates D18 are arranged at intervals on the second connecting plate D17; and the sixth suction plates D18 extend above the battery cell, so that the battery cell can be transported by suction.

[0044] Specifically, the transport frame D14 serves as a support frame, providing stability for the entire transport system; the fourth guide rail D15 and the fourth linear module D16 are fixed in place to ensure that the battery cells move smoothly and accurately during transport; the fourth guide rail D15 provides a sliding track for the second connecting plate D17, allowing it to move back and forth along the guide rail with precision; the design of the guide rail ensures smooth movement and avoids inaccurate positioning of the battery cells due to friction or other resistance; the fourth linear module D16 is the core component that drives the movement of the second connecting plate D17, and it provides precise reciprocating motion through the slider connected to the second connecting plate D17; the fourth linear module D16 is usually driven by a motor, enabling high-precision positioning and stable speed control; the second connecting plate D17 is an important component that connects the fourth guide rail D15 and the fourth linear module D16; it slides along the fourth guide rail D15 and moves back and forth under the drive of the fourth linear module D16; the second connecting plate D17 needs to have certain strength and stability to support multiple sixth suction plates D18 and bear the weight of the battery cells; the sixth suction plate D18 fixes the battery cells in the transport system through suction force, ensuring that the battery cells do not slide or fall during the entire transport process; the suction plate extends above the battery cells and usually uses pneumatic suction, magnetic suction, or vacuum suction to absorb the battery cells; the suction plate needs to ensure uniform suction force and be able to handle the size and weight of the battery cells.

[0045] Further, the rotating mechanism includes a third connecting plate E19 provided on the second connecting plate D17; the bottom of the third connecting plate E19 is provided with a fourth rotary air cylinder E20; and the fourth rotary air cylinder E20 is connected with a seventh suction plate E21; the seventh suction plate E21 is rotated by the fourth rotary air cylinder E20, thereby rotating the battery cell after the seventh suction plate E21 absorbs the battery cell.

[0046] Specifically, the third connecting plate E19 is fixed on the second connecting plate D17, serving as the mounting base plate of the fourth rotary air cylinder E20; it provides a stable mounting point for the rotating mechanism and transmits the movement of the second connecting plate; the fixed mode of the second connecting plate uses bolts or quick-release design, facilitating disassembly and maintenance; the fourth rotary air cylinder E20 is vertically installed at the bottom of the third connecting plate E19 and connected with the seventh suction plate E21; the seventh suction plate E21 provides rotary driving force to complete the rotation of the battery cell; the seventh suction plate E21 is connected to the output end of the fourth rotary air cylinder E20 and hangs below the rotating mechanism; it grabs the battery cell by suction and maintains stable clamping during rotation; the suction surface can be made of flexible materials such as silicone or polyurethane to avoid damaging the surface of the battery cell; the suction method can be vacuum suction.

[0047] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and not limiting, the scope of the present application being defined by the appended claims rather than by the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. An electrode tab folding apparatus, characterized by comprising: The third transport mechanism transports the battery cell, the tab folding mechanism folds the tab of the battery cell, the turnover mechanism turns over the battery cell after the tab is folded, the flattening mechanism flattens the tab of the battery cell after the turnover, the rotating mechanism rotates the battery cell after flattening, and the unloading conveyor belt unloads the battery cell after rotation.

2. The device of claim 1, wherein the device is configured to be used in a battery cell manufacturing process. The tab folding mechanism comprises a horizontally arranged tab folding rack (E1), a plurality of second battery cell bearing seats (E2) for bearing the battery cell are arranged at intervals on the tab folding rack (E1), two tab folding air cylinders (E3) are arranged at intervals above the tab folding rack (E1), a pressing block mounting seat (E4) is connected to the piston rod of each tab folding air cylinder (E3), a plurality of tab folding pressing blocks (E5) for folding the tab are arranged at the bottom of the pressing block mounting seat (E4), the second battery cell mounting seat is formed with a pressing block groove (E6) corresponding to the tab folding pressing block (E5), and the tab folding pressing block (E5) is pressed down to the pressing block groove (E6) by the tab folding air cylinder (E3), so that the tab of the battery cell is bent.

3. The device of claim 2, wherein the device is configured to be used in a battery manufacturing process. The two sides of the second battery cell bearing seat (E2) are provided with downwardly inclined downward pressing guide blocks (E7), the two sides of the tab folding pressing block (E5) are provided with downward pressing rollers (E8), and when the pressing block mounting seat (E4) is driven downward by the tab folding air cylinder (E3), the downward pressing rollers (E8) slide downward along the downward pressing guide blocks (E7) for guidance.

4. The device of claim 1, wherein the device is configured to be used in a battery cell. The turnover mechanism comprises a horizontally arranged turnover rack (E9), a first turnover side frame (E10) and a second turnover side frame (E11) are arranged at the two sides of the turnover rack (E9), a third battery cell bearing seat (E12) for bearing the battery cell is arranged at intervals on the turnover rack (E9), a fourth battery cell bearing seat (E13) is arranged between adjacent third battery cell bearing seats (E12), the third battery cell bearing seat (E12) and the fourth battery cell bearing seat (E13) are reversely arranged, The first turnover side frame (E10) and the second turnover side frame (E11) are provided with seventh lifting air cylinders (E14) with piston rods arranged upward, the piston rods of the seventh lifting air cylinders (E14) are connected with turnover mounting plates (E15), a plurality of third rotating air cylinders (E16) are arranged at intervals on the turnover mounting plate (E15), the third rotating air cylinders (E16) are connected with clamping air cylinders (E17), and the clamping air cylinders (E17) are driven by the third rotating air cylinders (E16) to clamp and turn over the battery cell.

5. A cell electrode folding device according to claim 4, characterized in that, An eighth lifting air cylinder (E18) is fixedly arranged at the bottom of the turnover rack (E9), the piston rod of the eighth lifting air cylinder (E18) is connected with the bottom of the turnover rack (E9), and the turnover rack (E9) is driven by the eighth lifting air cylinder (E18) to move up and down reciprocatingly.

6. The device of claim 1, wherein the device is configured to be used in a battery manufacturing process. The leveling mechanism comprises a horizontally arranged leveling rack (D6); the top of the leveling rack (D6) is provided with a plurality of positioning seats (D7) for positioning the battery cell, and the two end tabs of the battery cell are arranged on the two sides of the positioning seat (D7); the top of the leveling rack (D6) is provided with two leveling cylinders (D8); the piston rod of the leveling cylinder (D8) is connected with a leveling mounting plate (D9); the bottom of the leveling mounting plate (D9) is provided with a plurality of leveling pressing blocks (D10); the leveling pressing blocks (D10) are driven by the leveling cylinder (D8) to press the two end tabs of the battery cell.

7. The device of claim 1, wherein the device is configured to be used in a battery manufacturing process. The third conveying mechanism comprises a horizontally arranged conveying rack (D14); the conveying rack (D14) is horizontally provided with a fourth guide rail (D15); the side of the conveying rack (D14) is provided with a fourth linear module (D16); the fourth guide rail (D15) is provided with a second connecting plate (D17) in sliding fit with the fourth guide rail (D15); the second connecting plate (D17) is fixedly connected with the sliding block of the fourth linear module (D16), so that the fourth linear module (D16) drives the second connecting plate (D17) to reciprocate; the second connecting plate (D17) is provided with a plurality of sixth suction plates (D18) at intervals; the sixth suction plate (D18) extends above the battery cell, so that the battery cell can be suction conveyed.

8. A cell electrode folding device according to claim 7, characterized in that, The rotating mechanism comprises a third connecting plate (E19) arranged on the second connecting plate (D17); the bottom of the third connecting plate (E19) is provided with a fourth rotating cylinder (E20); the fourth rotating cylinder (E20) is connected with a seventh suction plate (E21); the seventh suction plate (E21) is driven by the fourth rotating cylinder (E20) to rotate, so that the battery cell is rotated after being suctioned by the seventh suction plate (E21).