A thermal composite mechanism for lithium battery substrates

Abstract

The present invention discloses a thermal composite mechanism for lithium battery substrates, which relates to the field of lithium battery substrates and includes a pressing mechanism and a conveying mechanism arranged outside the pressing mechanism; a cam sheet feeding mechanism is arranged at one end of the conveying mechanism away from the pressing mechanism, and a pole piece and a diaphragm are arranged inside the conveying mechanism, and the cam sheet feeding mechanism is located at the lower end of the pole piece. In this thermal composite mechanism for lithium battery substrates, by providing an anti-sticking coating on the surfaces of the pressing rubber roller and the positioning steel roller, the phenomenon of ceramic powder sticking to the roller when the ceramic surface of the diaphragm faces the above-mentioned roller can be avoided, and a second dust suction mechanism and a blowing mechanism are arranged outside the pressing rubber roller, which can prevent dust and foreign objects from entering again. By changing the vertical conveying of the pole piece to horizontal conveying, the influence of debris during the cutting process of the pole piece on the pressing of the pole piece and the diaphragm can be reduced. At the same time, a first dust suction mechanism is arranged at the position of the cutting knife mechanism, which can effectively avoid further reducing the influence of debris and ensure the pressing effect of the pole piece and the diaphragm.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery substrates, and specifically to a thermal composite mechanism for lithium battery substrates. Background Art

[0002] In order to improve the energy density of the battery, improve the internal resistance of the battery, increase mechanical stability, optimize thermal management, improve manufacturing efficiency, and increase safety, the separator and the positive and negative electrode sheets of the wound battery are thermally compounded. The layout adopted is that the tape enters the thermal compounding vertically. During the process of processing the lithium battery substrate, it is necessary to compound and wind the separator and the electrode sheet, and it is necessary to cut the wound separator and electrode sheet according to specifications to facilitate the production of lithium batteries of different specifications. During the cutting process of the separator and the electrode sheet, a special cutting tool mechanism is required for cutting to ensure the integrity of the cutting position of the separator and the electrode sheet, and it is necessary to avoid the influence of dust during the compounding process;

[0003] During the process of winding and processing the separator and the electrode sheet, it is necessary to squeeze the vertically moving separator and electrode sheet through two sets of rotating rollers. The cutting tool mechanism is arranged at the upper ends of the two sets of rotating rollers. During the process of compounding the electrode sheet and the separator by the two sets of rotating rollers, the electrode sheet and the separator will move downward, and during the compounding process, the electrode sheet and the separator are directly exposed. However, there are still certain defects in the use of the existing thermal composite mechanism;

[0004] When compounding the electrode sheet and the separator only through two sets of rotating rollers, it is easy to have the situation that the thermally compounded separator wrinkles. And with the vertical layout of the straight tape, carbon powder will appear when the electrode sheet is cut off, and the downward scattering of the carbon powder is likely to cause it to be compounded in the interlayer of the separator and the electrode sheet; and during the thermal compounding process, it is easy for the separator to be overheated to form closed pores (the honeycomb pores are adhesively closed), which is likely to affect the normal compounding between the electrode sheet and the separator.

[0005] In view of the above problems, it is urgent to innovate and design on the basis of the original thermal composite structure. Summary of the Invention

[0006] The purpose of the present invention is to provide a thermal composite mechanism for lithium battery substrates to solve the problems proposed in the above background art, that is, when compounding the electrode sheet and the separator only through two sets of rotating rollers, it is easy to have the situation that the thermally compounded separator wrinkles, and with the vertical layout of the straight tape, carbon powder will appear when the electrode sheet is cut off, and the downward scattering of the carbon powder is likely to cause it to be compounded in the interlayer of the separator and the electrode sheet; and during the thermal compounding process, it is easy for the separator to be overheated to form closed pores, which is likely to affect the normal compounding between the electrode sheet and the separator.

[0007] To achieve the above object, the present invention provides the following technical solution: a thermal composite mechanism for lithium battery substrates, including a pressing mechanism and a conveying mechanism arranged outside the pressing mechanism; one end of the conveying mechanism away from the pressing mechanism is provided with a cam sheet feeding mechanism, and the inside of the conveying mechanism is provided with pole pieces and diaphragms, and the cam sheet feeding mechanism is located at the lower end of the pole pieces. The inside of the pressing mechanism is provided with a pressing rubber roller and a positioning steel roller, and a lifting frame is arranged outside the pressing rubber roller, and a transverse motor and a vertical motor are arranged outside the lifting frame;

[0008] The inside of the conveying mechanism is provided with a sheet feeding clamp and a cutting mechanism, and the inside of the conveying mechanism is provided with a dust suction mechanism I, and the dust suction mechanism I is located at the upper and lower ends of the pole pieces.

[0009] Preferably, the inside of the pressing mechanism is provided with a dust suction mechanism II and a blowing mechanism, and the dust suction mechanism II and the blowing mechanism are respectively arranged outside the pressing rubber roller, and the inside of the pressing mechanism is provided with a coding roller, and the coding roller is located at the lower end of the pole piece away from the conveying mechanism.

[0010] Preferably, the inside of the pressing mechanism is provided with a pressure sensor, and the pressure sensor is located at the upper end of the pressing rubber roller. The inside of the conveying mechanism is provided with an identification sensor, and the identification sensor is located at the upper end of the pole piece.

[0011] Preferably, an exhaust frame, a fan mechanism and a dust collection frame are arranged at the upper end of the pressing mechanism, and the fan mechanism is respectively communicated with the exhaust frame and the dust collection frame through an air conveying pipe, and a dust collection port is installed at one end of the dust collection frame away from the fan mechanism, and the dust collection port is located on one side of the upper end of the pressing mechanism close to the conveying mechanism.

[0012] Preferably, a sealing cover is snap-fitted and installed at the upper end of the dust collection frame, and a handle is fixedly installed at the upper end of the sealing cover. A connecting rod is fixedly installed at the lower end of the sealing cover, and a receiving plate is fixedly installed at the lower end of the connecting rod, and the receiving plate is located inside the lower end of the dust collection frame.

[0013] Preferably, a partition plate is snap-fitted and installed inside the dust collection frame, and the partition plate is located at one end of the receiving plate close to the exhaust frame, and the partition plate is located between the dust collection frame and the receiving plate.

[0014] Preferably, a support plate is fixedly installed at one end of the connecting rod close to the partition plate, and a clamping member is fixedly installed at the upper end of the support plate, and a cleaning brush is snap-fitted and installed inside the clamping member, and the cleaning brush is in close contact with the partition plate.

[0015] Preferably, a positioning plate is fixedly installed on the lower end of the support plate, and a cleaning plate is slidably installed inside the positioning plate, and the end of the cleaning plate away from the positioning plate is in close contact with the isolation plate, the end of the cleaning plate close to the isolation plate is arranged in an inclined structure, and a support spring is fixedly installed on the end of the cleaning plate close to the positioning plate, and the support spring is located inside the positioning plate.

[0016] Preferably, a fixed block is fixedly installed on the lower end of the sealing cover, and a docking block is slidably installed on the end of the fixed block close to the dust collecting frame, and the end of the docking block away from the fixed block is in an inverted "V" shape, and a return spring is fixedly installed on the end of the fixed block close to the docking block, and a docking groove is opened inside the dust collecting frame, and the docking groove is snap-connected with the fixed block.

[0017] Preferably, a front diaphragm guide roller is disposed inside the lamination mechanism, and a deviation-correcting driving roller is disposed inside the conveying mechanism. The front diaphragm guide roller and the deviation-correcting driving roller are respectively located at the upper and lower ends of the diaphragm.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. By changing the pole piece from being transported vertically to being transported horizontally, it is possible to reduce the situation where debris automatically falls into the space between the pole piece and the diaphragm due to gravity during the pole piece cutting process, thereby reducing the impact of debris on the pressing of the pole piece and the diaphragm. At the same time, a dust collection mechanism is provided at the position of the cutter mechanism, which can effectively avoid further reducing the impact of debris and dust and ensure the pressing effect of the pole piece and the diaphragm;

[0020] 2. By providing an anti-stick coating on the surface of the pressing rubber roller and the positioning steel roller, the phenomenon of ceramic powder sticking to the roller when the diaphragm ceramic faces the above rollers can be avoided, and a dust suction mechanism and an air blowing mechanism are provided on the outside of the pressing rubber roller to prevent dust and foreign matter from entering again;

[0021] 3. Furthermore, the force on the rubber roller is even, which can avoid wrinkling during thermal lamination and improve the bonding force of the composite. The diaphragm guide roller is placed in front, and the diaphragm, rubber roller and steel roller only contact on the lamination line, not on a large area. The heat conduction and pressure are only on the force line, which can avoid diaphragm closure.

[0022] 4. Furthermore, the cam feeding mechanism is synchronized and then cut to eliminate the influence of acceleration and deceleration, ensuring that the process is a stable compound at a constant linear speed. There is a pole piece cutter before the pole piece and the diaphragm are compounded, which can cut the pole piece into sections according to the process length for compounding. In the subsequent winding process, only the compounded diaphragm needs to be cut, and there is no possibility of the pole piece falling off and being rolled into the battery cell;

[0023] 5. Further, through the settings of the dust collection port and the exhaust frame, the dust at the upper end of the pole piece can be blown, and at the same time, the dust that the dust suction mechanism fails to blow can be collected. Moreover, through the movement of the sealing cover, the inside of the dust collection frame can be cleaned, ensuring the convenience of cleaning the dust by this composite mechanism. Description of the Drawings

[0024] Figure 1 Schematic three-dimensional structure diagram of the present invention;

[0025] Figure 2 Schematic three-dimensional structure diagram of the dust suction mechanism II of the present invention;

[0026] Figure 3 Front view structure diagram of the pressing rubber roller of the present invention;

[0027] Figure 4 Right view structure diagram of the positioning steel roller of the present invention;

[0028] Figure 5 Schematic three-dimensional structure diagram of the dust collection port of the present invention;

[0029] Figure 6 Schematic three-dimensional structure diagram of the dust collection frame of the present invention;

[0030] Figure 7 Schematic three-dimensional structure diagram of the fan mechanism of the present invention;

[0031] Figure 8 Schematic three-dimensional structure diagram of the connecting rod of the present invention;

[0032] Figure 9 Schematic three-dimensional structure diagram of the fixing block of the present invention;

[0033] Figure 10 Schematic three-dimensional structure diagram of the cleaning brush of the present invention;

[0034] Figure 11 Schematic three-dimensional structure diagram of the receiving plate of the present invention.

[0035] In the figure: 1. Laminating mechanism; 2. Conveying mechanism; 3. Cam feeding mechanism; 4. Pole piece; 5. Identification sensor; 6. Laminating rubber roller; 7. Positioning steel roller; 8. Lifting frame; 9. Horizontal motor; 10. Vertical motor; 11. Feeding clamp; 12. Cutter mechanism; 13. Dust suction mechanism 1; 14. Dust suction mechanism 2; 15. Blowing mechanism; 16. Encoding roller; 17. Pressure sensor; 18. Front diaphragm guide roller; 19. Exhaust frame; 2 0. Fan mechanism; 21. Dust collecting frame; 22. Dust collecting port; 23. Air pipe; 24. Sealing cover; 25. Handle; 26. Receiver plate; 27. Isolation plate; 28. Support plate; 29. Clamp; 30. Cleaning brush; 31. Positioning plate; 32. Cleaning plate; 33. Support spring; 34. Fixing block; 35. Docking block; 36. Reset spring; 37. Docking groove; 38. Diaphragm; 39. Connecting rod; 40. Deviation correction drive roller. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Embodiment 1: This embodiment Figures 1 - 4 As shown, in order to solve the problem that debris is easily wrapped inside the pole piece 4 and the diaphragm 38 during vertical conveying and cutting of the existing mechanism, the composite mechanism is disclosed to carry out horizontal conveying and cutting of the pole piece 4 and the diaphragm 38, and the composite mechanism can achieve the effect of stable cutting and winding of the pole piece 4 and the diaphragm 38, and the specific contents are as follows:

[0038] A laminating mechanism 1 and a conveying mechanism 2 arranged outside the laminating mechanism 1; a cam film feeding mechanism 3 is arranged at one end of the conveying mechanism 2 away from the laminating mechanism 1, and a pole piece 4 and a diaphragm 38 are arranged inside the conveying mechanism 2, and the cam film feeding mechanism 3 is located at the lower end of the pole piece 4, a laminating rubber roller 6 and a positioning steel roller 7 are arranged inside the laminating mechanism 1, and a lifting frame 8 is arranged outside the laminating rubber roller 6, and a horizontal motor 9 and a vertical motor 10 are arranged outside the lifting frame 8; a film feeding clamp 11 and a cutter mechanism 12 are arranged inside the conveying mechanism 2, a dust suction mechanism 1 13 is arranged inside the conveying mechanism 2, and the dust suction mechanism 1 13 is located at the upper and lower ends of the pole piece 4; a dust suction mechanism 2 14 and an air blowing mechanism 15 are arranged inside the laminating mechanism 1, and the dust suction mechanism 2 14 and the air blowing mechanism 15 are respectively located on the outer sides of the laminating rubber roller 6, and an encoding roller 16 is arranged inside the laminating mechanism 1, and the encoding roller 16 is located at the lower end of the side of the pole piece 4 away from the conveying mechanism 2.

[0039] When using the lithium battery substrate thermal composite mechanism, the composite mechanism is first installed at the position where the work needs to be performed, and then the composite mechanism can be used to perform composite cutting processing on the electrode 4 and the diaphragm 38. In this process, the electrode 4 needs to be horizontally conveyed by the conveying mechanism 2, and the two sets of diaphragms 38 will be pressed together at the upper and lower ends of the electrode 4 during the conveying process, and in the process of laminating the diaphragm 38 and the electrode 4, the lamination of the diaphragm 38 and the electrode 4 will be controlled by the front diaphragm guide roller 18 and the deviation correction drive roller 40 to avoid In the case of tilt, while the conveying mechanism 2 is conveying the electrode piece 4, the specification of the electrode piece 4 is controlled by the identification sensor 5, so that the electrode piece 4 is cut into different lengths by the cutter mechanism 12, and the electrode piece 4 is cut by the cutter mechanism 12 during horizontal conveying, which will cause the electrode piece 4 to produce debris, and the horizontally conveyed electrode piece 4 debris will be directly scattered downward to avoid being sandwiched between the diaphragm 38 and the electrode piece 4 with the electrode piece 4, and the blowing structure and the dust suction structure can reduce the dust from entering between the electrode piece 4 and the diaphragm 38;

[0040] The identification sensor 5 identifies the pole ear, mark or identification length, fixes the length of the pole piece 4 according to the process, determines the cutting position, matches the speed of the pole piece 4 with the speed of the feeding clamp 11, clamps the pole piece 4, and at the same time, according to the current speed, the cutting mechanism 12 accelerates and follows, cuts the pole piece 4 when the speed is synchronized, exposes a certain length of the feeding clamp 11, and feeds it into the correction driving roller 40 to clamp the pole piece 4. The correction driving roller 40 starts to rotate, and after keeping the same speed as the original pole piece 4, the feeding clamp 11 and the cutting mechanism 12 slow down to stop and release the pole piece 4. The correction driving roller 40 corrects the pole piece 4 according to the edge position of the current side diaphragm 38, and at the same time, maintains the original speed to feed the pole piece 4 into the front diaphragm guide roller 18 for upper and lower diaphragms. 38 converge, and the upper and lower diaphragms 38 are pressed together with the pole piece 4 through the counter pressure of the pressing rubber roller 6 and the positioning steel roller 7. During this period, the hot compounding roller starts to rotate, and the current speed is read out by the encoder behind the hot compounding roller. Closed-loop control is performed to keep the same forward speed as the pole piece 4 and the diaphragm 38, and compound at a constant speed; in order to maintain the pressure balance, the two ends of the pressing rubber roller 6 are pressed down synchronously by two powers, and the pressure is closed-loop controlled with the pressure sensor 17, so as to control the downward force applied by the vertical motor 10. After reaching the pressure required by the process, the constant linear speed is maintained for hot compounding; thereby ensuring the stable pressing between the pole piece 4 and the diaphragm 38 and improving the processing effect between the pole piece 4 and the diaphragm 38.

[0041] Embodiment 2: This embodiment is as follows Figures 1 - 6 As shown, in order to solve the problem of dust easily appearing between the pole piece 4 and the diaphragm 38, the process of removing dust by the composite mechanism is disclosed, and the dust-free effect between the pole piece 4 and the diaphragm 38 is achieved, and the specific contents are as follows:

[0042] Inside the laminating mechanism 1, a pressure sensor 17 is provided, and the pressure sensor 17 is located at the upper end of the laminating rubber roller 6. Inside the conveying mechanism 2, an identification sensor 5 is provided, and the identification sensor 5 is located at the upper end of the pole piece 4. At the upper end of the laminating mechanism 1, an exhaust frame 19, a fan mechanism 20, and a dust collection frame 21 are provided. The fan mechanism 20 is respectively communicated with the exhaust frame 19 and the dust collection frame 21 through an air delivery pipe 23. One end of the dust collection frame 21 away from the fan mechanism 20 is provided with a dust collection port 22. At the same time, the dust collection port 22 is located on one side of the upper end of the laminating mechanism 1 close to the conveying mechanism 2. A sealing cover 24 is snap-fitted and installed at the upper end of the dust collection frame 21. A handle 25 is fixedly installed at the upper end of the sealing cover 24. A connecting rod 39 is fixedly installed at the lower end of the sealing cover 24. A bearing plate 26 is fixedly installed at the lower end of the connecting rod 39. And the bearing plate 26 is located inside the lower end of the dust collection frame 21. A partition plate 27 is snap-fitted and installed inside the dust collection frame 21. The partition plate 27 is located at one end of the bearing plate 26 close to the exhaust frame 19. And the partition plate 27 is located between the dust collection frame 21 and the bearing plate 26.

[0043] When using this lithium battery substrate thermal composite mechanism, the up and down movement of the lifting frame 8 is required to drive the up and down movement of the laminating rubber roller 6. The vertical movement of the laminating rubber roller 6 needs to be controlled by a vertical motor 10. And the rotation of the laminating rubber roller 6 and the positioning steel roller 7 is controlled by a horizontal motor 9. An anti-sticking coating is applied on the outer sides of the laminating rubber roller 6 and the positioning steel roller 7, which can reduce the dust adhered to the outer sides of the laminating rubber roller 6 and the positioning steel roller 7. And a dust suction mechanism II 14 and a blowing mechanism 15 are arranged on the outer side of the laminating rubber roller 6, which can reduce the contact between the dust in the air and the laminating rubber roller 6. And a dust suction mechanism I 13 is arranged inside the conveying mechanism 2, which can reduce the contact between the dust and the pole piece 4 during conveying.

[0044] At the same time, the exhaust frame 19 and the dust collection port 22 are arranged at the upper end of the laminating rubber roller 6, which can absorb the dust at the upper end in the direction of the conveying mechanism 2 into the dust collection frame 21 through the fan mechanism 20. And the exhaust frame 19 can blow the dust at the upper end of the coding roller 16 to avoid the dust from falling between the upper ends of the pole piece 4 and the diaphragm 38. The air outlet position of the exhaust frame 19 at the upper end position of the blowing mechanism 15 is in a sealed state to avoid affecting the normal operation of the blowing mechanism 15. Thus, the influence of the dust on the pole piece 4 and the diaphragm 38 can be effectively reduced.

[0045] Example 3: As shown in this example Figures 1 - 3 and Figures 7 - 11 shown, in order to solve the problem that it is difficult to collect dust in the existing composite structure, the process of collecting and cleaning dust by this composite structure is disclosed, and the effect of collecting and cleaning dust by this composite mechanism is realized. The specific content is as follows:

[0046] One end of the connecting rod 39 close to the isolation plate 27 is fixedly installed with a support plate 28, and the upper end of the support plate 28 is fixedly installed with a clamping member 29. A cleaning brush 30 is clamped and installed inside the clamping member 29. At the same time, the cleaning brush 30 is in close contact with the isolation plate 27. The lower end of the support plate 28 is fixedly installed with a positioning plate 31. A cleaning plate 32 is slidably installed inside the positioning plate 31. One end of the cleaning plate 32 away from the positioning plate 31 is in close contact with the isolation plate 27. One end of the cleaning plate 32 close to the isolation plate 27 is arranged in an inclined structure. One end of the cleaning plate 32 close to the positioning plate 31 is fixedly installed with a support spring 33, and the support spring 33 is located inside the positioning plate 31. The lower end of the sealing cover 24 is fixedly installed with a fixed block 34. One end of the fixed block 34 close to the dust collection frame 21 is slidably installed with a docking block 35. One end of the docking block 35 away from the fixed block 34 is in an inverted "V" shape. One end of the fixed block 34 close to the docking block 35 is fixedly installed with a return spring 36. A docking groove 37 is opened inside the dust collection frame 21, and the docking groove 37 is engaged with the fixed block 34. A pre-stage diaphragm guide roller 18 is arranged inside the pressing mechanism 1, and a deviation rectifying drive roller 40 is arranged inside the conveying mechanism 2. The pre-stage diaphragm guide roller 18 and the deviation rectifying drive roller 40 are respectively located at the upper and lower ends of the diaphragm 38.

[0047] When using this lithium battery substrate thermal composite mechanism, it is necessary to suck the dust into the dust collection port 22 and the inside of the dust collection frame 21 through the operation of the fan mechanism 20, and the air will be discharged from the exhaust frame 19 and blow away the dust outside. During this process, the isolation plate 27 inside the dust collection frame 21 will separate the dust entering the dust collection port 22 from the air. At this time, the dust will fall inside the receiving plate 26 or adhere to the surface of the isolation plate 27. Therefore, after the composite mechanism is used for a period of time, it is necessary to clean the dust inside the receiving plate 26.

[0048] During this process, it is necessary to pull two groups of handles 25 to move the sealing cover 24 upward. When the sealing cover 24 moves upward, it will pull the receiving plate 26 upward through the connecting rod 39. When the sealing cover 24 moves upward, the fixed block 34 will move upward synchronously. The upward movement of the fixed block 34 will drive the docking block 35 upward and cause the docking block 35 to be squeezed by the docking groove 37. At this time, the docking block 35 will move into the interior of the fixed block 34 and squeeze the return spring 36. After being squeezed, the return spring 36 will contract. During this process, the docking block 35 will move away from the docking groove 37. The upward movement of the connecting rod 39 will drive the cleaning brush 30 upward through the support plate 28, so that the cleaning brush 30 can clean the dust adhering to the surface of the partition plate 27. And the cleaning plate 32 will move upward following the positioning plate 31 and clean the partition plate 27 again, so as to ensure the cleanliness of the partition plate 27. At the same time, the elasticity of the support spring 33 can make the cleaning plate 32 always in close contact with the partition plate 27. After the docking block 35 is separated from the docking groove 37, the receiving plate 26 can be taken out and the dust inside the receiving plate 26 can be cleaned. Similarly, after the cleaning is completed, by operating the above process in reverse, the receiving plate 26 can be installed back to the initial position, thus ensuring the convenience of the composite mechanism for dust collection and cleaning and increasing the overall practicality.

[0049] The content not detailed in this specification belongs to the prior art well-known to those skilled in the art.

[0050] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A thermal composite mechanism for a lithium battery substrate, comprising a pressing mechanism (1) and a conveying mechanism (2) arranged outside the pressing mechanism (1); It is characterized in that: One end of the conveying mechanism (2) far from the pressing mechanism (1) is provided with a cam sheet feeding mechanism (3), and a pole piece (4) and a diaphragm (38) are arranged inside the conveying mechanism (2), and the cam sheet feeding mechanism (3) is located at the lower end of the pole piece (4). A pressing rubber roller (6) and a positioning steel roller (7) are arranged inside the pressing mechanism (1), a lifting frame (8) is arranged outside the pressing rubber roller (6), and a transverse motor (9) and a vertical motor (10) are arranged outside the lifting frame (8); A sheet feeding clamp (11) and a cutting mechanism (12) are arranged inside the conveying mechanism (2), a dust suction mechanism I (13) is arranged inside the conveying mechanism (2), and the dust suction mechanism I (13) is located at the upper and lower ends of the pole piece (4); An exhaust frame (19), a fan mechanism (20) and a dust collection frame (21) are arranged at the upper end of the pressing mechanism (1), and the fan mechanism (20) is communicated with the exhaust frame (19) and the dust collection frame (21) respectively through an air pipe (23). One end of the dust collection frame (21) far from the fan mechanism (20) is provided with a dust collection port (22), and the dust collection port (22) is located on one side of the upper end of the pressing mechanism (1) close to the conveying mechanism (2); A sealing cover (24) is snap-fitted and installed at the upper end of the dust collection frame (21), a handle (25) is fixedly installed at the upper end of the sealing cover (24), a connecting rod (39) is fixedly installed at the lower end of the sealing cover (24), a bearing plate (26) is fixedly installed at the lower end of the connecting rod (39), and the bearing plate (26) is located inside the lower end of the dust collection frame (21); An isolation plate (27) is snap-fitted and installed inside the dust collection frame (21), the isolation plate (27) is located at one end of the bearing plate (26) close to the exhaust frame (19), and the isolation plate (27) is located between the dust collection frame (21) and the bearing plate (26); A support plate (28) is fixedly installed at one end of the connecting rod (39) close to the isolation plate (27), a clamping part (29) is fixedly installed at the upper end of the support plate (28), a cleaning brush (30) is snap-fitted and installed inside the clamping part (29), and the cleaning brush (30) is in close fit with the isolation plate (27).

2. The thermal composite mechanism for a lithium battery substrate according to claim 1, wherein: A dust suction mechanism II (14) and a blowing mechanism (15) are arranged inside the pressing mechanism (1), the dust suction mechanism II (14) and the blowing mechanism (15) are respectively located outside the pressing rubber roller (6), a coding roller (16) is arranged inside the pressing mechanism (1), and the coding roller (16) is located at the lower end of the pole piece (4) far from the conveying mechanism (2). Both ends of the pressing rubber roller (6) are controlled by two groups of vertical motors (10).

3. The thermal composite mechanism for a lithium battery substrate according to claim 2, characterized in that: A pressure sensor (17) is arranged inside the pressing mechanism (1), and the pressure sensor (17) is located at the upper end of the pressing rubber roller (6). An identification sensor (5) is arranged inside the conveying mechanism (2), and the identification sensor (5) is located at the upper end of the pole piece (4). The pressure sensor (17) is used to detect the downward movement force of the vertical motor (10).

4. The thermal composite mechanism for a lithium battery substrate according to claim 3, characterized in that: A positioning plate (31) is fixedly installed at the lower end of the support plate (28). A cleaning plate (32) is slidably installed inside the positioning plate (31). One end of the cleaning plate (32) away from the positioning plate (31) is in close contact with the isolation plate (27). One end of the cleaning plate (32) close to the isolation plate (27) is arranged in an inclined structure. A support spring (33) is fixedly installed at one end of the cleaning plate (32) close to the positioning plate (31), and the support spring (33) is located inside the positioning plate (31).

5. The thermal composite mechanism for a lithium battery substrate according to claim 4, characterized in that: A fixed block (34) is fixedly installed at the lower end of the sealing cover (24). A docking block (35) is slidably installed at one end of the fixed block (34) close to the dust collection frame (21). One end of the docking block (35) away from the fixed block (34) is in an inverted "V" shape. A return spring (36) is fixedly installed at one end of the fixed block (34) close to the docking block (35). A docking groove (37) is opened inside the dust collection frame (21), and the docking groove (37) is engaged with the fixed block (34). A pre-diaphragm guide roller (18) is arranged inside the pressing mechanism (1). A deviation correction drive roller (40) is arranged inside the conveying mechanism (2). The pre-diaphragm guide roller (18) and the deviation correction drive roller (40) are respectively located at the upper and lower ends of the diaphragm (38).

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