Hot-pressing shaping device and method for soft package lithium ion battery cell

Abstract

The invention discloses a hot-pressing shaping device and method for a soft package lithium ion battery cell in the technical field of lithium battery processing, the hot-pressing shaping device comprises a workbench, a fixing box, a first fixing groove, a second fixing groove and a conveying assembly, a plurality of processing grooves are formed in the first fixing groove and the second fixing groove, and a shaping mechanism, a material bearing seat and a moving assembly are arranged in each processing groove; according to the machining device, the material bearing bases in the first fixing groove and the second fixing groove are made to move in the opposite directions through the driving assembly and the moving assembly, and therefore when the multiple machining grooves in one side conduct feeding and shaping, the multiple machining grooves in the other side conduct returning and discharging; the discharging groove is formed in the bottom of the machining groove, and the movable cylindrical limiting seat is arranged at the discharging groove, so that limiting of the cylindrical limiting seat to the material bearing seat is omitted during discharging, the material bearing seat can rotate for discharging, discharging of the lithium battery cells is quicker and more convenient, and the lithium battery cells are conveyed and transferred through the conveying assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery production, and in particular to a hot pressing and shaping device and method for a soft-pack lithium-ion battery cell. Background Art

[0002] In the production process of lithium-ion batteries, after the electrode production is completed, the positive and negative electrode sheets and the separator are generally assembled by winding or stacking to form a basic battery cell. After the winding operation is completed, the two sides of the lithium battery cell are in an arc or semicircular shape, which affects the subsequent processing, packaging and use, and needs to be hot-pressed and shaped.

[0003] The patent publication number is CN209071508U, which is a device for rounding the corners of lithium battery square cells. Its structure mainly includes a hot pressing component and a shaping component. The hot pressing component includes a lower hot pressing plate fixed on the work station and an upper hot pressing plate located above the lower hot pressing plate and connected to a first driving mechanism. The shaping component includes a first U-shaped push plate and a second U-shaped push plate that are relatively arranged and located on both sides of the lower hot pressing plate, and the first U-shaped push plate and the second U-shaped push plate are respectively connected to the second driving mechanism and the third driving mechanism; the rounded corners of the battery cell after hot pressing are shaped by the lower hot pressing plate, the upper hot pressing plate and the first U-shaped push plate and the second U-shaped push plate, so that the rounded corners on both sides of the battery cell after shaping form a plane, which is convenient for the subsequent installation of the lithium battery cell into the shell.

[0004] However, when the above device is working, corresponding structures are provided around the lower hot pressing plate, which results in that the space at the lower hot pressing plate is restricted, making it inconvenient to load materials, causing troubles in loading and unloading operations and affecting processing efficiency.

[0005] Based on this, the present invention designs a hot pressing and shaping device and method for soft-pack lithium-ion battery cells to solve the above problems. Summary of the Invention

[0006] The object of the present invention is to provide a device and method for hot pressing and shaping soft-pack lithium-ion battery cells to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A hot pressing and shaping device for soft-pack lithium-ion battery cells includes a workbench, a fixed box is provided in the middle of the top of the workbench, a driving assembly is provided in the fixed box, and a conveying assembly is provided in the middle below the workbench. A first fixed groove and a second fixed groove are respectively provided on both sides of the top of the workbench corresponding to the fixed box, and a plurality of processing grooves are evenly arranged in the first fixed groove and the second fixed groove;

[0009] A moving assembly is provided in the processing tank, and a material receiving seat is rotatably connected to the moving assembly. A torsion spring is provided at the rotating connection, and a vertical baffle is fixed on the top of the material receiving seat close to the fixed box. A shaping mechanism is provided on the side of the processing tank away from the fixed box.

[0010] The workbench is provided with a material discharge trough near the fixed box. The material discharge trough is located below one side of the material receiving seat and above the conveying assembly. An inclined electric telescopic rod is fixed to the bottom of the workbench. One end of the electric telescopic rod is located in the material discharge trough and is fixed with a telescopic horizontal axis. A cylindrical limit seat is rotatably connected to the telescopic horizontal axis. A plurality of balls are evenly arranged on the circumferential surface of the cylindrical limit seat, and the cylindrical limit seat contacts the bottom surface of the material receiving seat through the balls.

[0011] Preferably, the shaping mechanism includes a fixing frame fixed to the top of the processing groove, a spring plate is provided above the fixing frame, the bottom of the spring plate is connected to the fixing frame through a plurality of springs evenly arranged, and vertical spring rods are symmetrically fixed on both sides of the bottom surface of the spring plate, the bottom ends of the two spring rods extend into the processing groove and are jointly fixed with an upper pressure seat;

[0012] Side pressure seats are respectively provided at the two sides of the processing groove corresponding to the upper pressure seat, and a side pressure groove is provided in the middle of the opposite surfaces of the two side pressure seats. First inclined surfaces are symmetrically provided at both ends of the upper pressure seat, and a second inclined surface is provided at the corresponding position of the top of the side pressure seat, and the upper part of the second inclined surface is slidingly connected to the lower part of the first inclined surface, and the bottom of the side pressure seat is slidingly connected to the bottom surface of the processing groove, and a moving block is fixed in the middle of the bottom of the side pressure seat, and a moving groove is provided at the position of the working table corresponding to the moving block, and the bottoms of the two moving blocks extend out of the moving groove and are jointly connected with an adjustment component.

[0013] Preferably, the adjustment assembly includes a fixed base fixed to the bottom of the workbench, the fixed base is located between the two moving blocks and is connected to the moving blocks via springs, guide rods are symmetrically fixed on both sides of the upper portion of the fixed base, and the ends of the guide rods pass through the corresponding moving blocks;

[0014] A spring groove is provided at the lower part of the fixed seat, and a horizontal movable plate is slidably connected in the spring groove. The two ends of the movable plate are symmetrically arranged and rotatably connected with a connecting rod, and the outer end of the connecting rod is rotatably connected to the bottom of the movable block on the corresponding side. The bottom of the movable plate is connected to the bottom end of the spring groove through a spring, and a vertical movable shaft is fixed in the middle of the bottom of the movable plate, and the bottom end of the movable shaft passes through the bottom end of the spring groove and extends out. A cam is provided on the top of the movable plate, which is rotatably connected to the side wall of the spring groove and is connected to a motor.

[0015] Preferably, a second worm gear is coaxially fixed on one side of the cam, a second worm is engaged with the bottom of the second worm gear, the second worm is rotatably connected to the bottom of the workbench, multiple second worms located on the same side are coaxially fixed, and one end of the second worm located at the side position is connected to a motor, and the motor is fixed to the bottom of the workbench.

[0016] Preferably, the moving assembly includes a threaded cylinder rotatably connected to the center of the material receiving seat, and a torsion spring is provided at the rotating connection. The end of the threaded cylinder away from the fixed box is fixed to the limit platform. Two limit sliding shafts are symmetrically slidably connected on both sides of the limit platform, and one end of the limit sliding shaft passes through the limit platform and is fixedly connected to the end of the processing groove away from the fixed box. A threaded shaft is threadedly connected in the threaded cylinder, and the end of the threaded shaft extends into the fixed box and is connected to the driving assembly, and the spiral rotation directions of the threaded shaft in the first fixed groove and the threaded shaft in the second fixed groove are opposite.

[0017] Preferably, the drive assembly includes a first worm gear fixed between two threaded shafts at opposite end positions, a first worm is engaged at the top of the first worm gear, multiple first worms are coaxially fixed, and one end of one of the first worms located at the side position is connected to a motor, and the motor is fixed in a fixed box.

[0018] Preferably, the positions of the two symmetrical limiting sliding shafts in the material receiving seat are both provided with limiting shaft grooves.

[0019] Preferably, the conveying assembly includes a conveying wheel rotatably connected to the bottom of the workbench, one end of the conveying wheel is connected to a motor, and a conveyor belt is provided on the conveying wheel, and multiple discharge troughs are located above the conveyor belt.

[0020] In addition, the present invention also provides a method for hot-pressing and shaping soft-pack lithium-ion battery cells using the hot-pressing and shaping device for the soft-pack lithium-ion battery cells, comprising the following steps:

[0021] S1, placing the lithium battery cells to be processed on the multiple receiving seats in the first fixing groove;

[0022] S2, the driving assembly drives the moving assembly to drive the material receiving seat and the lithium battery cell to move toward the shaping mechanism, and at the same time, the multiple material receiving seats in the second fixed groove are moved from the shaping mechanism position toward the fixed box under the action of the moving assembly;

[0023] S3, the material receiving seat and the lithium battery cell in the first fixed groove are moved to the shaping mechanism, and the lithium battery cell is subjected to hot pressing and shaping processing. At the same time, the material receiving seat in the second fixed groove returns to the unloading groove to load the lithium battery cell;

[0024] S4, the material receiving seat and the lithium battery cell in the first fixed groove are returned to the unloading groove under the action of the moving assembly to unload the lithium battery cell, and at the same time, the material receiving seat and the lithium battery cell in the second fixed groove are moved to the shaping mechanism under the action of the moving assembly for hot pressing shaping;

[0025] S5, the first fixed trough and the second fixed trough perform loading and shaping and return and unloading in turn until the corresponding number of lithium battery cells are shaped and processed, and the unloaded lithium battery cells are transported and transferred by the conveying assembly.

[0026] Compared with the prior art, the present invention has at least the following beneficial effects:

[0027] 1) The present invention provides a first fixed groove and a second fixed groove on the processing table, and provides multiple processing grooves therein, and provides a shaping mechanism in the processing grooves, thereby increasing the number of lithium battery cells processed and improving the working efficiency of the shaping process.

[0028] 2) The present invention uses a driving component and a moving component to move the material receiving seats in the first fixed groove and the second fixed groove in opposite directions, so that when the multiple processing grooves on one side are loading and shaping, the multiple processing grooves on the other side are returning to unload, further improving the processing efficiency.

[0029] 3) The present invention sets a material discharge chute at the bottom of the processing chute and sets a movable cylindrical limit seat at the material discharge chute, so that the cylindrical limit seat can cancel the limitation of the material receiving seat during material discharge, so that the material receiving seat can rotate to discharge the material, making the discharge of the lithium battery cell faster and more convenient, and the lithium battery cell is transported and transferred through the conveying assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 It is a schematic diagram of the structure of the present invention;

[0032] Figure 2 for Figure 1 Schematic diagram of the structure at A in the middle;

[0033] Figure 3 It is a structural schematic diagram of the upper pressure seat and the side pressure seat of the present invention;

[0034] Figure 4 It is a structural schematic diagram of the material receiving seat of the present invention;

[0035] Figure 5 It is a structural schematic diagram of the feeding chute of the present invention;

[0036] Figure 6 Schematic diagram of the structure of the first worm gear of the present invention;

[0037] Figure 7 Schematic diagram of the structure of the second worm gear of the present invention.

[0038] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0039] 100- workbench, 101- conveyor belt, 102- fixed box, 103- first fixed slot, 104- second fixed slot, 105- processing slot, 106- unloading slot, 107- electric telescopic rod, 108- telescopic horizontal axis, 109- cylindrical limit seat;

[0040] 200-fixed frame, 201-spring plate, 202-spring rod, 203-upper pressure seat, 204-first inclined surface, 205-side pressure seat, 206-side pressure groove, 207-second inclined surface, 208-moving block;

[0041] 300-material receiving seat, 301-baffle, 302-threaded shaft, 303-limiting sliding shaft, 304-threaded cylinder, 305-limiting platform, 306-limiting shaft groove, 307-first worm wheel, 308-first worm;

[0042] 400-fixed seat, 401-guide rod, 402-spring slot, 403-moving plate, 404-moving shaft, 405-connecting rod, 406-cam, 407-second worm gear, 408-second worm. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0044] Example 1

[0045] Referring to the accompanying drawings, the present invention provides a hot pressing and shaping device for soft-pack lithium-ion batteries, comprising a workbench 100, a fixing box 102 disposed in the middle of the top of the workbench 100, a drive assembly disposed in the fixing box 102, and a conveying assembly disposed in the middle of the bottom of the workbench 100. A first fixing groove 103 and a second fixing groove 104 are disposed on the top of the workbench 100, corresponding to both sides of the fixing box 102. A plurality of processing grooves 105 are evenly distributed in each of the first fixing groove 103 and the second fixing groove 104.

[0046] A moving assembly is provided in the processing tank 105, and a material receiving seat 300 is rotatably connected to the moving assembly. A torsion spring is provided at the rotating connection, and a vertical baffle 301 is fixed to the top of the material receiving seat 300 close to the side of the fixed box 102. A shaping mechanism is provided on the side of the processing tank 105 away from the fixed box 102;

[0047] The workbench 100 is provided with a material discharge trough 106 near the fixed box 102. The material discharge trough 106 is located below one side of the material receiving seat 300 and above the conveying assembly. An inclined electric telescopic rod 107 is fixed to the bottom of the workbench 100. One end of the electric telescopic rod 107 is located in the material discharge trough 106 and is fixed with a telescopic horizontal axis 108. A cylindrical limit seat 109 is rotatably connected to the telescopic horizontal axis 108. A plurality of balls are evenly arranged on the circumferential surface of the cylindrical limit seat 109, and the cylindrical limit seat 109 contacts the bottom surface of the material receiving seat 300 through the balls.

[0048] When hot pressing and shaping the lithium battery cells, materials are loaded into the multiple processing grooves 105 in the first fixed groove 103, and the lithium battery cells are placed on the material receiving seat 300. The material receiving seat 300 is driven by the moving assembly to move the lithium battery cells to the shaping mechanism, and the lithium battery cells are hot pressed and shaped.

[0049] Then the moving assembly drives the material receiving seat 300 to return to its position and locates at the material discharge trough 106. The material receiving seat 300 is supported by the cylindrical limit seat 109 to maintain a horizontal state. When unloading, the electric telescopic rod 107 contracts, driving the telescopic horizontal axis 108 and the cylindrical limit seat 109 to move and disengage from the bottom of the material receiving seat 300, so that the material receiving seat 300 is rotated and tilted toward the material discharge trough 106 under the action of the torsion spring, so that the lithium battery cell moves down along the inclined material receiving seat 300 and falls onto the conveying assembly, so that the shaped lithium battery cell can be unloaded and conveyed.

[0050] When the driving component drives the moving components on both sides to move, the multiple material receiving seats 300 in the first fixed groove 103 complete the shaping processing and return to their positions, and the multiple material receiving seats 300 in the second fixed groove 104 complete the loading and move toward the shaping mechanism under the action of the moving component, so that when the multiple processing grooves 105 on one side return to unload, the multiple processing grooves 105 on the other side are loaded and shaped, thereby improving the processing efficiency, and through the rotatable material receiving seat 300, the unloading of lithium battery cells is faster and more convenient.

[0051] The shaping mechanism includes a fixing frame 200 fixed to the top of the processing groove 105. A spring plate 201 is provided above the fixing frame 200. The bottom of the spring plate 201 is connected to the fixing frame 200 by multiple springs evenly arranged. Vertical spring rods 202 are symmetrically fixed on both sides of the bottom surface of the spring plate 201. The bottom ends of the two spring rods 202 extend into the processing groove 105 and are jointly fixed to an upper pressure seat 203.

[0052] Side pressure seats 205 are respectively provided at the two side positions corresponding to the upper pressure seat 203 in the processing groove 105, and a side pressure groove 206 is provided in the middle of the opposite surfaces of the two side pressure seats 205. First inclined surfaces 204 are symmetrically provided at both ends of the upper pressure seat 203, and a second inclined surface 207 is provided at the corresponding position of the top of the side pressure seat 205, and the upper part of the second inclined surface 207 is slidingly connected to the lower part of the first inclined surface 204, and the bottom of the side pressure seat 205 is slidingly connected to the bottom surface of the processing groove 105, and a moving block 208 is fixed in the middle of the bottom of the side pressure seat 205, and a moving groove is provided at the position of the working table 100 corresponding to the moving block 208, and the bottoms of the two moving blocks 208 extend out of the moving groove and are jointly connected to an adjustment component.

[0053] When the lithium battery cell moves to the bottom of the upper pressure seat 203, it is located between the two side pressure seats 205, and then the two moving blocks 208 are used to drive the two side pressure seats 205 to move toward the receiving seat 300 through the adjustment component. At the same time, the upper pressure seat 203 is moved down by the relative sliding of the second inclined surface 207 and the first inclined surface 204, so that the spring plate 201 compresses the spring and moves down with the upper pressure seat 203. When the end of the side pressure seat 205 contacts the side of the receiving seat 300, the bottom surface of the upper pressure seat 203 coincides with the top surface of the side pressure groove 206, and the upper pressure seat 203, the side pressure seat 205 and the receiving seat 300 are all provided with an electric heating structure, so that the lithium battery cell is hot-pressed and shaped by the receiving seat 300, the side pressure seat 205 and the upper pressure seat 203;

[0054] After the hot pressing shaping is completed, the adjusting component drives the side pressure seat 205 to move outward and return to its original position, and the upper pressure seat 203 moves upward accordingly under the action of the spring, thereby separating the side pressure seat 205 and the upper pressure seat 203 from the lithium battery cell, so that the material receiving seat 300 and the lithium battery cell can return to their original position.

[0055] Among them, the moving component includes a threaded barrel 304 rotatably connected to the center of the material receiving seat 300, and a torsion spring is provided at the rotating connection. The end of the threaded barrel 304 away from the fixed box 102 is fixed to the limit platform 305, and two limit sliding shafts 303 are symmetrically slidably connected on both sides of the limit platform 305, and one end of the limit sliding shaft 303 passes through the limit platform 305 and is fixedly connected to the end of the processing groove 105 away from the fixed box 102. A threaded shaft 302 is threadedly connected in the threaded barrel 304, and the end of the threaded shaft 302 extends into the fixed box 102 and is connected to the driving component, and the spiral rotation directions of the threaded shaft 302 in the first fixed groove 103 and the threaded shaft 302 in the second fixed groove 104 are opposite.

[0056] When the driving component drives the threaded shaft 302 to rotate, since the threads of the threaded shafts 302 on both sides rotate in opposite directions, the processing groove 105 on one side moves to load materials, while the processing groove 105 on the other side returns to unload materials; and when the threaded shaft 302 rotates, the threaded shaft 302 is limited and guided by the limiting sliding shaft 303 and the limiting platform 305, driving the material receiving seat 300 to move along the bottom surface of the processing groove 105, thereby realizing the loading and unloading movement of the lithium battery cell.

[0057] Among them, the driving assembly includes a first worm gear 307 fixed between two threaded shafts 302 at opposite end positions, a first worm 308 is engaged with the top of the first worm gear 307, multiple first worm gears 308 are coaxially fixed, and one end of the first worm gear 308 located at the side position is connected to a motor, the motor is fixed in the fixed box 102, and the first worm gear 308 is driven by the motor to make multiple first worm gears 307 rotate at the same time, thereby making multiple threaded shafts 302 in the first fixed groove 103 and the second fixed groove 104 rotate at the same time, and the material receiving seats 300 in the first fixed groove 103 and the second fixed groove 104 move in opposite directions, so that the processing groove 105 on one side is loaded and the processing groove 105 on the other side is returned to unload.

[0058] Example 2

[0059] The structure of this embodiment is substantially the same as that of the first embodiment, except that the adjustment assembly includes a fixed base 400 fixed to the bottom of the workbench 100. The fixed base 400 is located between the two moving blocks 208 and is connected to the moving blocks 208 via springs. Guide rods 401 are symmetrically fixed to both sides of the upper portion of the fixed base 400. The ends of the guide rods 401 pass through the corresponding moving blocks 208.

[0060] A spring groove 402 is provided at the lower part of the fixed seat 400, and a horizontal movable plate 403 is slidably connected in the spring groove 402. The two ends of the movable plate 403 are symmetrically arranged and rotatably connected with a connecting rod 405, and the outer end of the connecting rod 405 is rotatably connected to the bottom of the movable block 208 on the corresponding side. The bottom of the movable plate 403 is connected to the bottom end of the spring groove 402 through a spring, and a vertical movable shaft 404 is fixed in the middle of the bottom of the movable plate 403. The bottom end of the movable shaft 404 passes through the bottom end of the spring groove 402 and extends out. A cam 406 is provided at the top of the movable plate 403, and the cam 406 is rotatably connected to the side wall of the spring groove 402 and is connected to a motor.

[0061] When the position of the two side pressure seats 205 needs to be adjusted, the cam 406 is driven by the motor to rotate, so that it moves the movable plate 403 downward, and when moving downward, the connecting rods 405 at both ends are used to pull the movable block 208 to move along the guide rod 401, thereby driving the two side pressure seats 205 to move, realizing the rolling forming processing of the lithium battery cell, and then the cam 406 rotates, and the movable plate 403, connecting rod 405 and movable block 208 and other structures return to their original positions under the action of the spring, so that the side pressure seat 205 returns to its original position and disengages from the lithium battery cell, making it easier to move the formed lithium battery cell.

[0062] Example 3

[0063] The structure of this embodiment is basically the same as that of the second embodiment, except that a second worm gear 407 is coaxially fixed to one side of the cam 406, a second worm 408 is engaged with the bottom of the second worm gear 407, and the second worm 408 is rotatably connected to the bottom of the workbench 100. Multiple second worm gears 408 located on the same side are coaxially fixed, and one end of the second worm gears 408 located at the side is connected to a motor, which is fixed to the bottom of the workbench 100. The second worm gear 408 is driven by the motor, so that the multiple second worm gears 407 on the same side rotate at the same time, and then the multiple cams 406 on the same side rotate at the same time, and the corresponding press forming processing is performed.

[0064] Example 4

[0065] The structure of this embodiment is basically the same as that of embodiment 1, except that the positions of the two symmetrical limiting slide shafts 303 in the material receiving seat 300 are both provided with limiting shaft grooves 306. When the material receiving seat 300 is loaded with material and moves toward the upper pressure seat 203 and the side pressure seat 205, the end of the limiting slide shaft 303 extends into the limiting shaft groove 306 to avoid obstruction of the relative movement between the limiting slide shaft 303 and the material receiving seat 300, and to enable the limiting slide shaft 303 to limit the material receiving seat 300 and the threaded cylinder 304 at the same time.

[0066] Example 5

[0067] The structure of this embodiment is basically the same as that of the first embodiment, except that the conveying assembly includes a conveying wheel rotatably connected to the bottom of the workbench 100, one end of the conveying wheel is connected to a motor, and a conveyor belt 101 is provided on the conveying wheel, and multiple discharge troughs 106 are all located above the conveyor belt 101. When the material receiving seat 300 rotates and tilts downward, the lithium battery cell moves down along the inclined material receiving seat 300 and falls onto the conveyor belt 101. The conveying wheel is driven by the motor, and the conveyor belt 101 is driven to move, thereby transporting and transferring the fallen lithium battery cell.

[0068] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0069] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A hot pressing and shaping device for a soft-pack lithium-ion battery cell, comprising a workbench (100), characterized in that: A fixed box (102) is provided in the middle of the top of the workbench (100), a driving assembly is provided in the fixed box (102), and a conveying assembly is provided in the middle of the bottom of the workbench (100); a first fixed groove (103) and a second fixed groove (104) are respectively provided on both sides of the top of the workbench (100) corresponding to the fixed box (102), and a plurality of processing grooves (105) are respectively and evenly provided in the first fixed groove (103) and the second fixed groove (104); A moving assembly is provided in the processing groove (105), a material receiving seat (300) is rotatably connected to the moving assembly, a torsion spring is provided at the rotatable connection, and a vertical baffle (301) is fixed on the top of the material receiving seat (300) close to the fixed box (102), and a shaping mechanism is provided on the side of the processing groove (105) away from the fixed box (102); The workbench (100) is provided with a material discharge chute (106) at a position close to the fixed box (102), the material discharge chute (106) is located below one side of the material receiving seat (300) and above the conveying assembly, an inclined electric telescopic rod (107) is fixed to the bottom of the workbench (100), one end of the electric telescopic rod (107) is located in the material discharge chute (106), and a telescopic horizontal axis (108) is fixed thereto, a cylindrical limit seat (109) is rotatably connected to the telescopic horizontal axis (108), a plurality of balls are evenly arranged on the circumferential surface of the cylindrical limit seat (109), and the cylindrical limit seat (109) contacts the bottom surface of the material receiving seat (300) through the balls.

2. The hot pressing and shaping device for soft-pack lithium-ion battery cells according to claim 1, characterized in that: The shaping mechanism comprises a fixing frame (200) fixed to the top of the processing groove (105), a spring plate (201) is arranged above the fixing frame (200), the bottom of the spring plate (201) is connected to the fixing frame (200) through a plurality of springs evenly arranged, and vertical spring rods (202) are symmetrically fixed on both sides of the bottom surface of the spring plate (201), the bottom ends of the two spring rods (202) extend into the processing groove (105), and are jointly fixed with an upper pressing seat (203); Side pressure seats (205) are respectively provided at the two side positions corresponding to the upper pressure seat (203) in the processing groove (105), and a side pressure groove (206) is provided in the middle of the opposite surfaces of the two side pressure seats (205). The first inclined surfaces (204) are symmetrically provided at both ends of the upper pressure seat (203), and a second inclined surface (207) is provided at the corresponding position of the top of the side pressure seat (205), and the upper part of the second inclined surface (207) is slidably connected to the lower part of the first inclined surface (204), the bottom of the side pressure seat (205) is slidably connected to the bottom surface of the processing groove (105), and a moving block (208) is fixed in the middle of the bottom of the side pressure seat (205), and the workbench (100) is provided with a moving groove at the position corresponding to the moving block (208), and the bottoms of the two moving blocks (208) extend out of the moving groove and are commonly connected to an adjustment component.

3. The hot pressing and shaping device for soft-pack lithium-ion battery cells according to claim 2, characterized in that: The adjustment assembly comprises a fixed seat (400) fixed to the bottom of the workbench (100), the fixed seat (400) is located between the two moving blocks (208) and is connected to the moving blocks (208) via springs, guide rods (401) are symmetrically fixed on both sides of the upper part of the fixed seat (400), and the ends of the guide rods (401) pass through the corresponding moving blocks (208); A spring groove (402) is provided at the lower part of the fixed seat (400), and a horizontal movable plate (403) is slidably connected in the spring groove (402). Connecting rods (405) are symmetrically arranged at both ends of the movable plate (403) and are rotatably connected, and the outer end of the connecting rod (405) is rotatably connected to the bottom of the movable block (208) on the corresponding side. The bottom of the movable plate (403) is connected to the bottom end of the spring groove (402) through a spring, and a vertical movable shaft (404) is fixed in the middle of the bottom of the movable plate (403), and the bottom end of the movable shaft (404) passes through the bottom end of the spring groove (402) and extends out. A cam (406) is provided at the top of the movable plate (403), and the cam (406) is rotatably connected to the side wall of the spring groove (402) and is connected to a motor.

4. The hot pressing and shaping device for soft-pack lithium-ion battery cells according to claim 3, characterized in that: A second worm gear (407) is coaxially fixed to one side of the cam (406), a second worm (408) is meshed at the bottom of the second worm gear (407), and the second worm (408) is rotatably connected to the bottom of the workbench (100). Multiple second worm gears (408) located on the same side are coaxially fixed, and one end of one of the second worm gears (408) located at the side is connected to a motor, which is fixed to the bottom of the workbench (100).

5. The hot pressing and shaping device for soft-pack lithium-ion battery cells according to claim 1, characterized in that: The moving assembly includes a threaded barrel (304) rotatably connected to the center of the material receiving seat (300), and a torsion spring is provided at the rotation connection. The end of the threaded barrel (304) away from the fixed box (102) is fixed to the limit platform (305), and two limit sliding shafts (303) are symmetrically slidably connected on both sides of the limit platform (305), and one end of the limit sliding shaft (303) passes through the limit platform (305) and is fixedly connected to the end of the processing groove (105) away from the fixed box (102). A threaded shaft (302) is threadedly connected in the threaded barrel (304), and the end of the threaded shaft (302) extends into the fixed box (102) and is connected to the driving assembly, and the spiral rotation direction of the threaded shaft (302) in the first fixed groove (103) and the threaded shaft (302) in the second fixed groove (104) are opposite.

6. The hot pressing and shaping device for soft-pack lithium-ion battery cells according to claim 5, characterized in that: The drive assembly comprises a first worm wheel (307) fixed between two threaded shafts (302) at opposite end positions, a first worm (308) meshing at the top of the first worm wheel (307), a plurality of first worms (308) are coaxially fixed, and one end of one of the first worms (308) located at a side position is connected to a motor, and the motor is fixed in a fixed box (102).

7. The hot pressing and shaping device for soft-pack lithium-ion battery cells according to claim 5, characterized in that: The positions of the two symmetrical limiting sliding shafts (303) in the material receiving seat (300) are both provided with limiting shaft grooves (306).

8. The hot pressing and shaping device for soft-pack lithium-ion battery cells according to claim 1, characterized in that: The conveying assembly comprises a conveying wheel rotatably connected to the bottom of the workbench (100), one end of the conveying wheel is connected to a motor, and a conveying belt (101) is provided on the conveying wheel, and a plurality of material discharge troughs (106) are all located above the conveying belt (101).

9. A method for hot-pressing and shaping soft-package lithium-ion battery cells using the hot-pressing and shaping device for soft-package lithium-ion battery cells according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1, placing lithium battery cells to be processed on a plurality of material receiving seats (300) in a first fixing groove (103); S2, driving the moving assembly through the driving assembly, so that it drives the material receiving seat (300) and the lithium battery cell to move toward the shaping mechanism, and at the same time, the plurality of material receiving seats (300) in the second fixed groove (104) are moved from the shaping mechanism position toward the fixed box (102) under the action of the moving assembly; S3, the material receiving seat (300) and the lithium battery cell in the first fixed groove (103) are moved to the shaping mechanism, and the lithium battery cell is subjected to hot pressing shaping processing, while the material receiving seat (300) in the second fixed groove (104) returns to the unloading groove (106) to load the lithium battery cell; S4, the material receiving seat (300) and the lithium battery cell in the first fixed groove (103) are returned to the material unloading groove (106) under the action of the moving assembly to unload the lithium battery cell, and at the same time, the material receiving seat (300) and the lithium battery cell in the second fixed groove (104) are moved to the shaping mechanism under the action of the moving assembly to perform hot pressing shaping; S5, the first fixed groove (103) and the second fixed groove (104) perform loading and shaping and return and unloading in turn until a corresponding number of lithium battery cells are shaped and processed, and the unloaded lithium battery cells are transported and transferred by the conveying assembly.

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