Pole piece compounding machine

Abstract

The utility model relates to a kind of pole piece compounders, including feeding device, follow-up pressing device and composite device, feeding device carries upper pole piece and lower pole piece to follow-up pressing device, follow-up pressing device drives upper pole piece, lower pole piece accelerates to same speed with composite material belt, and upper pole piece and lower pole piece are respectively pressed and pasted in composite material belt both sides, and the composite material belt with upper pole piece and lower pole piece pressed and pasted is pressed into composite pole piece by composite device;Composite device includes respectively in pairs setting pre-composite press roll, primary composite roller and secondary composite roller, pre-composite press roll is close to primary composite roller setting, and cooperate with follow-up pressing device, pre-composite press roll is with the way of roll clamp upper pole piece, lower pole piece together with composite material belt is transported to primary composite roller, primary composite roller, secondary composite roller respectively first press, second press upper pole piece, lower pole piece with composite material belt.The utility model improves the production efficiency of pole piece compound and the consistency of pole piece compound.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery production technology, and in particular to an electrode composite machine. Background Technology

[0002] Driven by market demands for longer driving range and greater safety in new energy vehicle power batteries, automakers, battery manufacturers, and equipment manufacturers are all focusing on solid-state batteries, which are currently the most suitable choice given existing technology. The production process of solid-state batteries involves first producing composite electrodes, then stacking these electrodes without a separator to form a cell. This stacking process is more efficient, and the separator-free structure of solid-state batteries reduces the probability of short circuits, making them safer. However, existing electrode stacking machines, such as the thermally composited electrode stacking device disclosed in Chinese invention patent application number 202410222001.4, have limitations in the synchronicity of movement between the upper and lower electrodes during the electrode stacking process. Misalignment of the upper and lower electrodes is common, and the pressure during stacking is relatively low. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an electrode composite machine.

[0004] This utility model provides an electrode laminating machine, including a feeding device, a pressing device, and a laminating device. The feeding device transports the upper electrode and the lower electrode to the pressing device. The pressing device drives the upper electrode and the lower electrode to accelerate to the same speed as the composite strip and presses the upper electrode and the lower electrode onto both sides of the composite strip in the thickness direction. The composite strip with the upper electrode and the lower electrode pressed onto it is pressed into a composite electrode by the laminating device.

[0005] The composite device includes a pre-composite pressure roller, a primary composite roller, and a secondary composite roller arranged in pairs. The pre-composite pressure roller is positioned close to the primary composite roller and cooperates with the follow-up pressure device. The pre-composite pressure roller conveys the upper electrode sheet and the lower electrode sheet together with the composite material strip to the primary composite roller in a roller clamping manner. The primary composite roller and the secondary composite roller respectively perform a first pressing and a second pressing of the upper electrode sheet, the lower electrode sheet, and the composite material strip. The pressing force of the second pressing is greater than the pressing force of the first pressing.

[0006] In some embodiments, the pressing device includes an upper pressing suction cup and a lower pressing suction cup. The upper and lower pressing suction cups are driven by a set of driving structures, which include a horizontal rotation module and a driving module. The upper pressing suction cup rotates between the first loading position and the composite strip via the horizontal rotation module to move the upper electrode to the upper side of the composite strip. The lower pressing suction cup rotates between the second loading position and the composite strip via the horizontal rotation module to move the lower electrode to the lower side of the composite strip. The upper and lower pressing suction cups move along the conveyor path of the composite strip via the corresponding driving modules, and accelerate the upper and lower electrodes to the same speed as the composite strip to press the upper and lower electrodes onto both sides of the composite strip and move towards the pre-composite pressure roller.

[0007] In some embodiments, both the upper and lower pressure suction cups include a main adsorption zone and a secondary adsorption zone with independent driving air pressures. Two secondary adsorption zones are provided on both sides of the main adsorption zone. The main adsorption zone is used to adsorb the main body of the electrode sheet, and the secondary adsorption zone is used to adsorb the tabs of the electrode sheet. The width of the secondary adsorption zone is smaller than the width of the main adsorption zone.

[0008] In some embodiments, the upper and lower pressure suction cups are provided with clearances on the side near the pre-composite pressure roller to allow the upper and lower electrode sheets to be partially exposed, and the pre-composite pressure roller clamps the upper and lower electrode sheets through the clearances.

[0009] In some embodiments, a follow-up clamping device is also included, which is disposed between the follow-up pressing device and the composite device. The follow-up clamping device includes a first follow-up clamping assembly and a second follow-up clamping assembly disposed on both sides of the composite strip width direction. The first follow-up clamping assembly and the second follow-up clamping assembly each include a movable seat and an upper clamping jaw, a lower clamping jaw, a drive motor, a drive shaft, and a cam assembly disposed on the movable seat. The movable seat moves along the conveyor path of the composite strip through a linear module. The upper clamping jaw and the lower clamping jaw are disposed on both sides of the composite strip. The drive motor drives the upper clamping jaw and the lower clamping jaw to move in an opening and closing manner through the drive shaft and the cam assembly, so as to clamp the upper electrode sheet and the lower electrode sheet pressed on both sides of the composite strip and move with the composite strip to the pre-composite pressure roller.

[0010] In some embodiments, the pressure-following device includes an upper pressure suction cup and a lower pressure suction cup. Both the upper and lower pressure suction cups include a main adsorption zone and a secondary adsorption zone with independent driving air pressures. Two secondary adsorption zones are provided on both sides of the main adsorption zone. A gap is formed between the secondary adsorption zone and the main adsorption zone. The upper and lower grippers clamp the electrode portion exposed through the gap.

[0011] In some embodiments, the positions of the upper and lower clamping jaws holding the electrode sheet are at a certain distance from the edge of the electrode sheet, so that the pre-composite pressure roller can clamp the edge of the electrode sheet in a rolling clamping manner without interfering with the upper and lower clamping jaws.

[0012] In some embodiments, the cam group is arranged on the same drive shaft, and the upper gripper includes a first upper gripper and a second upper gripper. The first upper gripper, the second upper gripper, and the lower gripper are each driven by a corresponding cam in the cam group and move along the corresponding vertical guide rails on the moving seat.

[0013] In some embodiments, the movable seat is provided with a plurality of buffer cylinders that are respectively connected to the first upper jaw, the second upper jaw, and the lower jaw.

[0014] Compared with existing technologies, the advantages of this utility model are as follows: Automatic feeding, positioning, and handling of electrode sheets are achieved through the coordinated operation of the feeding clip, the alignment table, and the robotic arm; the tracking and clamping devices can synchronously accelerate to the same speed as the composite strip, ensuring precise pressing of the upper and lower electrode sheets onto the composite strip, avoiding misalignment, and improving production cycle time and efficiency; the alignment table, combined with visual positioning, ensures accurate positioning of each electrode sheet; the tracking and clamping device, driven by a cam, synchronously opens and closes the upper and lower clamps, and accelerates to the same speed as the composite strip via a linear module, ensuring that the electrode sheets do not move relative to the composite strip, improving the composite yield rate, and solving problems such as positioning misalignment, electrode ear damage, and weak bonding in electrode bonding; the electrode sheets are initially fixed by the pre-composite pressure roller, and then pressed stepwise by the heatable primary and secondary composite rollers, improving the bonding strength and consistency between the composite strip and the electrode sheets, significantly improving production efficiency and product consistency. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the electrode composite machine according to an embodiment of this application.

[0016] Figure 2 This is a schematic diagram of the planar structure of the electrode composite machine according to an embodiment of this application.

[0017] Figure 3 This is a three-dimensional structural diagram of the pressing device, clamping device, and composite device according to embodiments of this application.

[0018] Figure 4 This is a cross-sectional structural diagram of the pressing device, clamping device, and composite device according to embodiments of this application.

[0019] Figure 5 This is a three-dimensional structural diagram of the pressure-following device according to an embodiment of this application.

[0020] Figure 6 This is a three-dimensional structural diagram of the clamping device according to an embodiment of this application.

[0021] Figure 7 This is a three-dimensional structural diagram of the pre-composite pressure roller and the primary composite roller according to an embodiment of this application.

[0022] Reference numerals: 101, upper electrode; 102, lower electrode; 103, composite strip; 104, composite electrode; 1. Feeding device; 11. Feeding magazine; 12. Straightening table; 13. Wafer picking robot; 2. Pressure tracking device; 21. Upper pressure suction cup; 22. Lower pressure suction cup; 23. Horizontal rotation module; 24. Z-axis drive assembly; 25. Y-axis drive assembly; 26. X-axis drive assembly; 27. Counterweight cylinder; 3. Clamping device; 31. First clamping assembly; 32. Second clamping assembly; 4. Moving seat; 41. First upper gripper; 42. Second upper gripper; 43. Lower gripper; 44. Drive motor; 45. Drive shaft; 46. Cam assembly; 47. Linear module; 48. Vertical guide rail; 49. Buffer cylinder; 5. Composite device; 51. Pre-composite pressure roller; 52. Primary composite roller; 53. Secondary composite roller; 54. Pressure structure; 55. Rotary drive structure; 61. Main adsorption region; 62. Secondary adsorption region; 63. Notch. Detailed Implementation

[0023] The specific embodiments of this utility model are described with reference to the accompanying drawings.

[0024] refer to Figures 1 to 7An electrode laminating machine includes a feeding device 1, a pressing device 2, a clamping device 3, and a laminating device 5. The feeding device 1 transports upper electrode sheets 101 and lower electrode sheets 102 to the pressing device 2. The upper electrode sheets 101 and lower electrode sheets 102 are respectively fed on both sides of the laminating material belt 103 in the width direction through a feeding device 1. The feeding device 1 includes a feeding clip 11, a straightening table 12, and a picking robot 13. The feeding clip 11 has many electrode sheets stacked on it. The picking robot 13 is set in a direction perpendicular to the path of the laminating material belt 103. The lifting structure inside the feeding clip 11 pushes the electrode sheets upward. The lifting structure can be a cylinder, hydraulic cylinder, motor, or lead screw. The picking robot 13 picks up the uppermost electrode sheet and transports it to the straightening table 12 for further processing. The positioning and alignment stage 12 is equipped with a vision system. After taking a picture, the electrode is pushed towards the center by push rods on both sides, thereby adjusting the position and orientation of the electrode. The lower electrode 102, which has been adjusted and positioned, is transported to the lower pressing suction cup 22 of the pressing device 2 by the picking robot 13. The upper electrode 101, which has been adjusted and positioned, is directly picked up by the upper pressing suction cup 21. The pressing device 2 drives the upper electrode 101 and the lower electrode 102 to accelerate to the same speed as the composite strip 103, and presses the upper electrode 101 and the lower electrode 102 onto both sides of the composite strip 103 in the thickness direction. The composite strip 103 with the upper electrode 101 and the lower electrode 102 pressed on is pressed into a composite electrode 104 by the composite device 5.

[0025] It should be further explained that the electrode sheets are picked up from the loading magazine 11 by the picking robot 13 and transferred to the alignment table 12. The alignment table 12 uses a vision system and four-corner positioning to ensure the accurate positioning of each electrode sheet. The loading device 1 on the lower electrode sheet 102 side is equipped with two picking robots 13, which move between the loading magazine 11 and the alignment table 12 and between the alignment table 12 and the lower pressing suction cup 22 of the pressing device 2, respectively. The loading device 1 on the upper electrode sheet 101 side only uses one picking robot 13 to transport the electrode sheets to the alignment table 12. The upper pressing suction cup 21 picks up the upper electrode sheet 101 on the alignment table 12. After the lower electrode sheet 102 is transferred to the lower pressing suction cup 22 by the picking robot 13, the pressing device 2 drives the upper electrode sheet 101 and the lower electrode sheet 102 to accelerate to the same speed as the composite material strip 103 and press them onto the composite material strip 103.

[0026] The follow-up clamping device 3 is located between the follow-up pressing device 2 and the composite device 5. The follow-up clamping device 3 includes a first follow-up clamping assembly 31 and a second follow-up clamping assembly 32 located on both sides of the composite material strip 103 in the width direction. The first follow-up clamping assembly 31 and the second follow-up clamping assembly 32 both include a movable seat 4 and an upper clamping jaw 43, a lower clamping jaw 43, a drive motor 44, a drive shaft 45 and a cam group 46 located on the movable seat 4. The movable seat 4 moves along the conveyor path of the composite material strip 103 through the linear module 47. The upper clamping jaw and the lower clamping jaw 43 are located on both sides of the composite material strip 103. The drive motor 44 drives the upper clamping jaw and the lower clamping jaw 43 to move in an opening and closing manner through the drive shaft 45 and the cam group 46, so as to clamp the upper electrode 101 and the lower electrode 102 pressed on both sides of the composite material strip 103 and move them with the composite material strip 103 to the pre-composite pressure roller 51. The pressure-following device 2 includes an upper pressure suction cup 21 and a lower pressure suction cup 22. Both the upper pressure suction cup 21 and the lower pressure suction cup 22 include a main adsorption zone 61 and a secondary adsorption zone 62 with independent driving air pressures. Two secondary adsorption zones 62 are provided on both sides of the main adsorption zone 61. A notch 63 is formed between the secondary adsorption zone 62 and the main adsorption zone 61. The upper gripper and the lower gripper 43 clamp the electrode portion exposed in the notch 63.

[0027] The upper and lower clamping jaws 43 are positioned at a certain distance from the edge of the electrode sheet, allowing the pre-composite pressure roller 51 to clamp the edge of the electrode sheet in a rolling manner without interfering with the upper and lower clamping jaws 43. The cam group 46 is mounted on the same drive shaft 45. The upper clamping jaws include a first upper clamping jaw 41 and a second upper clamping jaw 42. The first upper clamping jaw 41, the second upper clamping jaw 42, and the lower clamping jaw 43 are driven by a corresponding cam in the cam group 46 and move along the corresponding vertical guide rails 48 on the movable seat 4. The movable seat 4 is equipped with multiple buffer cylinders 49 that are respectively connected to the first upper clamping jaw 41, the second upper clamping jaw 42, and the lower clamping jaw 43.

[0028] Understandably, the moving seats 4 of the first clamping assembly 31 and the second clamping assembly 32 are both driven by the linear module 47 that moves laterally along the X-axis. The opening and closing of the upper and lower clamps 43 are driven by cams. The upper and lower clamps 43 open and close synchronously. The upper and lower clamps 43 are equipped with buffer cylinders 49 to buffer the opening and closing pressure, ensuring that the upper and lower clamps 43 do not damage the electrode when pressing the electrode. The pressure of the buffer cylinder 49 can be controlled by an electric proportional valve.

[0029] refer to Figure 1The composite device 5 includes a pre-composite pressure roller 51, a primary composite roller 52, and a secondary composite roller 53 arranged in pairs. The pre-composite pressure roller 51 is arranged close to the primary composite roller 52 and cooperates with the follow-up pressure device 2. The pre-composite pressure roller 51 conveys the upper electrode 101 and the lower electrode 102 together with the composite material belt 103 to the primary composite roller 52 in a roller clamping manner. The primary composite roller 52 and the secondary composite roller 53 respectively perform the first pressing and the second pressing of the upper electrode 101 and the lower electrode 102 with the composite material belt 103. The pressing force of the second pressing is greater than the pressing force of the first pressing.

[0030] refer to Figure 7 The pre-composite pressure roller 51 and the primary composite roller 52 are arranged adjacent to each other. Both the pre-composite pressure roller 51 and the primary composite roller 52 include a pressure structure 54 and a rotation drive structure 55. The primary composite roller 52 can be heated by hot oil or electromagnetic induction to ensure the composite effect. The secondary composite roller 53 does not have the pre-composite pressure roller 51 structure and can provide greater pressure. Its other principles are similar to those of the primary composite roller 52 and will not be illustrated here.

[0031] In this embodiment, reference Figure 6 The pressing device 2 includes an upper pressing suction cup 21 and a lower pressing suction cup 22. The upper pressing suction cup 21 and the lower pressing suction cup 22 are each driven by a set of driving structures. The driving structures include a horizontal rotation module 23 and a driving module. The upper pressing suction cup 21 rotates between the first loading position and the composite material strip 103 via the horizontal rotation module 23, thereby moving the upper electrode 101 to the upper side of the composite material strip 103. The lower pressing suction cup 22 rotates via the horizontal rotation module 23 at the second loading position... The material level rotates between the composite material belt 103 and the material level, thereby driving the lower electrode 102 to move to the lower side of the composite material belt 103. The upper pressure suction cup 21 and the lower pressure suction cup 22 move along the conveyor path of the composite material belt 103 through the corresponding drive module, and speed up the upper electrode 101 and the lower electrode 102 to the same speed as the composite material belt 103, so as to press the upper electrode 101 and the lower electrode 102 onto both sides of the composite material belt 103, and move towards the pre-composite pressure roller 51.

[0032] Among them, reference Figure 5The horizontal rotation module 23 and the drive module are arranged sequentially from top to bottom to ensure precise alignment of the electrode positions at each station. The drive module includes a Z-axis drive assembly 24, a Y-axis drive assembly 25, and an X-axis drive assembly 26 arranged sequentially from top to bottom. The horizontal rotation module 23 is set on the Z-axis drive assembly 24, thereby driving the upper pressing suction cup 21 to move between the first loading position and the composite material strip 103, and driving the lower pressing suction cup 22 to move between the second loading position and the composite material strip 103. This causes the upper pressing suction cup 21 and the lower pressing suction cup 22 to reach the same speed as the composite material strip 103, and causes the upper pressing suction cup 21 and the lower pressing suction cup 22 to press the upper electrode 101 and the lower electrode 102 onto the composite material strip 103. The horizontal rotation module 23 is also equipped with a counterweight cylinder 27 to ensure that the Z-axis drive assembly 24 can respond quickly and that the upper electrode 101 and the lower electrode 102 can be quickly pressed onto the composite strip 103.

[0033] In this embodiment, reference Figure 4 and Figure 6 Both the upper and lower pressure suction cups 21 and 22 include a main adsorption zone 61 and a secondary adsorption zone 62 with independent driving air pressures. Two secondary adsorption zones 62 are provided on both sides of the main adsorption zone 61. The main adsorption zone 61 is used to adsorb the main body of the electrode sheet, and the secondary adsorption zone 62 is used to adsorb the tabs of the electrode sheet. The width of the secondary adsorption zone 62 is smaller than the width of the main adsorption zone 61. It can be understood that when the clamping device 3 is not used, both the upper and lower pressure suction cups 21 and 22 are provided with a clearance (not shown in the figure) on the side near the pre-composite pressure roller 51 to allow the upper electrode sheet 101 and the lower electrode sheet 102 to be partially exposed. The pre-composite pressure roller 51 clamps the upper electrode sheet 101 and the lower electrode sheet 102 through the clearance.

[0034] The secondary adsorption zone 62 corresponds to the tab of the adsorption electrode. The gas pressure and start / stop of the secondary adsorption zone 62 are independent of the main adsorption zone 61, ensuring that the tab of the electrode is not damaged and that the electrode can be adsorbed smoothly.

[0035] In this embodiment, the composite strip 103 is continuously and uniformly unwound via an unwinding structure. The upper electrode 101 and lower electrode 102 are transported from the loading clip 11 to the alignment table 12 by a robotic arm 13. After alignment by the alignment table 12, they are transferred onto the composite strip 103. Specifically, the upper electrode 101 is directly picked up from the alignment table 12 by the upper pressure suction cup 21, while the lower electrode 102 requires another robotic arm 13 to transport it from the alignment table 12 to the lower pressure suction cup 22. The upper pressure suction cup 21 and the lower pressure suction cup 22, which carries the lower electrode 102, are accelerated to the same speed as the composite strip 103 under the drive of the drive assembly. The drive assembly clamps the lower electrode 102, the upper electrode 101, and the composite strip 103 and feeds them into the pre-composite pressure roller 51. This process is repeated until a new composite electrode 104 strip is formed, in which the upper electrode 101 and the lower electrode 102 are compounded at equal intervals in the composite strip 103. The new composite electrode 104 strip is then wound into a roll by the winding structure. The unwinding and winding structures ensure the tension and stability of the entire composite strip 103.

[0036] The follow-up pressing device 2 and the follow-up clamping device 3 can be used together or separately depending on the process. They attach the upper electrode 101 and the lower electrode 102 onto the composite material strip 103 and deliver them to the pre-composite pressing roller 51. When the follow-up pressing device 2 is used alone, a portion of the electrode will be exposed by the upper pressing suction cup 21 and the lower pressing suction cup 22 so that the upper pressing suction cup 21 and the lower pressing suction cup 22 do not collide with the pre-composite pressing roller 51. When the following pressure device 2 and the following clamping device 3 are used together, the following pressure device 2 first accelerates to the same speed as the composite material belt 103, and the upper pressure suction cup 21 and the lower pressure suction cup 22 press together. At the same time, the following clamping device 3 also accelerates to the same speed as the composite material belt 103 and is at the same center position as the following pressure device 2 in the direction of electrode running. After the upper clamping claw and the lower clamping claw 43 of the following clamping device 3 clamp the four corners of the upper electrode 101 and the lower electrode 102, the upper pressure suction cup 21 and the lower pressure suction cup 22 of the following pressure device 2 open and retract. The following clamping device 3 then sends the upper electrode 101 and the lower electrode 102 together with the composite material belt 103 to the pre-composite pressure roller 51. The upper electrode 101 and the lower electrode 102 are initially bonded to the composite material belt 103 by the pre-composite pressure roller 51, and then can smoothly enter the first-stage composite roller 52 and the second-stage composite roller 53 along with the composite material belt 103 to form the composite electrode 104 through multi-stage composite.

[0037] The above does not limit the technical scope of this utility model. Any modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall still fall within the scope of the technical solution of this utility model.

Claims

1. An electrode composite machine, characterized in that, The device includes a feeding device, a pressing device, and a composite device. The feeding device transports the upper electrode and the lower electrode to the pressing device. The pressing device accelerates the upper electrode and the lower electrode to the same speed as the composite strip and presses the upper electrode and the lower electrode onto both sides of the composite strip in the thickness direction. The composite strip with the upper electrode and the lower electrode pressed onto it is pressed into a composite electrode by the composite device. The composite device includes a pre-composite pressure roller, a primary composite roller, and a secondary composite roller arranged in pairs. The pre-composite pressure roller is positioned close to the primary composite roller and cooperates with the follow-up pressure device. The pre-composite pressure roller conveys the upper electrode sheet and the lower electrode sheet together with the composite material strip to the primary composite roller in a roller clamping manner. The primary composite roller and the secondary composite roller respectively perform a first pressing and a second pressing of the upper electrode sheet, the lower electrode sheet, and the composite material strip. The pressing force of the second pressing is greater than the pressing force of the first pressing.

2. The electrode composite machine according to claim 1, characterized in that, The pressing device includes an upper pressing suction cup and a lower pressing suction cup. The upper and lower pressing suction cups are driven by a set of driving structures, which include a horizontal rotation module and a driving module. The upper pressing suction cup rotates between the first loading position and the composite material belt through the horizontal rotation module to move the upper electrode to the upper side of the composite material belt. The lower pressing suction cup rotates between the second loading position and the composite material belt through the horizontal rotation module to move the lower electrode to the lower side of the composite material belt. The upper and lower pressing suction cups move along the conveyor path of the composite material belt through the corresponding driving modules, and accelerate the upper and lower electrodes to the same speed as the composite material belt to press the upper and lower electrodes onto both sides of the composite material belt and move towards the pre-composite pressure roller.

3. The electrode composite machine according to claim 2, characterized in that, Both the upper and lower pressure suction cups include a main adsorption zone and a secondary adsorption zone with independent driving air pressure. Two secondary adsorption zones are provided on both sides of the main adsorption zone. The main adsorption zone is used to adsorb the main body of the electrode, and the secondary adsorption zone is used to adsorb the tabs of the electrode. The width of the secondary adsorption zone is smaller than the width of the main adsorption zone.

4. The electrode composite machine according to claim 2, characterized in that, Both the upper and lower pressure suction cups are provided with clearances on the side near the pre-composite pressure roller to allow the upper and lower electrode sheets to be partially exposed. The pre-composite pressure roller clamps the upper and lower electrode sheets through these clearances.

5. The electrode composite machine according to claim 1, characterized in that, It also includes a follow-up clamping device, which is disposed between the follow-up pressing device and the composite device. The follow-up clamping device includes a first follow-up clamping assembly and a second follow-up clamping assembly disposed on both sides of the composite material strip in the width direction. The first follow-up clamping assembly and the second follow-up clamping assembly each include a movable seat and an upper clamping jaw, a lower clamping jaw, a drive motor, a drive shaft and a cam assembly disposed on the movable seat. The movable seat moves along the conveyor path of the composite material strip through a linear module. The upper clamping jaw and the lower clamping jaw are disposed on both sides of the composite material strip. The drive motor drives the upper clamping jaw and the lower clamping jaw to move in an opening and closing manner through the drive shaft and the cam assembly, so as to clamp the upper electrode sheet and the lower electrode sheet pressed on both sides of the composite material strip and move with the composite material strip to the pre-composite pressure roller.

6. The electrode composite machine according to claim 5, characterized in that, The pressure-following device includes an upper pressure suction cup and a lower pressure suction cup. Both the upper and lower pressure suction cups include a main adsorption zone and a secondary adsorption zone with independent driving air pressures. Two secondary adsorption zones are provided on both sides of the main adsorption zone. A gap is formed between the secondary adsorption zone and the main adsorption zone. The upper and lower grippers hold the electrode portion exposed through the gap.

7. The electrode composite machine according to claim 5, characterized in that, The upper and lower clamping claws are positioned at a certain distance from the edge of the electrode sheet, so that the pre-composite pressure roller can clamp the edge of the electrode sheet by rolling without interfering with the upper and lower clamping claws.

8. The electrode composite machine according to claim 5, characterized in that, The cam group is mounted on the same drive shaft. The upper gripper includes a first upper gripper and a second upper gripper. The first upper gripper, the second upper gripper, and the lower gripper are each driven by a corresponding cam in the cam group and move along the corresponding vertical guide rails on the moving seat.

9. The electrode composite machine according to claim 8, characterized in that, The movable seat is equipped with multiple buffer cylinders that are respectively connected to the first upper gripper, the second upper gripper, and the lower gripper.

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