A heat setting device for lithium ion battery separator production

Abstract

The utility model discloses a kind of heat setting device for lithium ion battery diaphragm production, belong to diaphragm heat setting technical field, its technical scheme main points include workbench, the rear side of the top of workbench is fixedly connected with two groups of support column, the inside of the top of support column is rotatably connected with two heating rollers, the top of workbench is fixedly connected with cleaning mechanism, the front side of workbench top is fixedly connected with limiting mechanism, cleaning mechanism is driven top gear rotation by first motor, top gear and bottom gear are mutually engaged, so that two cleaning rollers reverse rotation, can wipe and clean diaphragm surface, remove dust and impurity, simultaneously, pressure pump extracts detergent from water storage tank and is sprayed to diaphragm by nozzle, further flush diaphragm surface, improve cleaning effect, avoid impurity in heat setting process influence diaphragm performance, limiting mechanism is slid in sliding groove by push rod, can push clamping rod moves in moving groove, compression reset spring, make clamping rod and membrane roll separation.

Description

Technical Field

[0001] This utility model relates to the field of membrane heat setting technology, and in particular to a heat setting device for lithium-ion battery membrane production. Background Technology

[0002] The main function of lithium-ion battery separators is to isolate the positive and negative electrodes, prevent short circuits, and allow lithium ions to pass through. In the production process of separators, heat setting is a crucial step. Heat setting can make the microporous structure of the separator more stable, improve the dimensional stability of the separator, and reduce its thermal shrinkage rate during battery use, thereby ensuring the normal operation of the battery.

[0003] To address the aforementioned issues, existing patents have provided solutions. However, existing heat-setting devices lack a structure for cleaning the diaphragm before heat-setting, which makes it easy for a large amount of dust, particulate matter, and other impurities to adhere to the diaphragm surface, resulting in an uneven diaphragm surface and affecting the adhesion between the diaphragm and the electrode.

[0004] To address this, a heat-setting device for lithium-ion battery separator production is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a heat-setting device for the production of lithium-ion battery separators, which can solve the problem that the existing separator heat-setting lacks a structure for cleaning the separator before heat-setting, resulting in a large amount of dust, particulate matter and other impurities easily adhering to the separator surface, making the separator surface uneven, and thus affecting the bonding effect between the separator and the electrode.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a heat setting device for lithium-ion battery separator production, comprising a worktable, two sets of support columns fixedly connected to the rear side of the top of the worktable, two heating rollers rotatably connected to the inner side of the top of the support columns, a cleaning mechanism fixedly connected to the top of the worktable, and a limit mechanism fixedly connected to the front side of the top of the worktable.

[0007] The cleaning mechanism includes a limiting post, a first motor, gears, a cleaning roller, a support rod, a connecting plate, a protective shell, a water tank, a pressurizing pump, and several nozzles. The limiting post is fixedly connected to both sides of the top of the workbench. The first motor is fixedly connected to the inner side of the top of the left limiting post. The top gear is fixedly connected to the output end of the right side of the first motor. The bottom gear is rotatably connected to the inner side of the limiting post. The top gear and the bottom gear mesh with each other. The left side of the cleaning roller is fixedly connected to the right side of the top gear and the bottom gear, respectively.

[0008] Preferably, the right side of the cleaning roller is rotatably connected to the left side of the right limiting post, the support rod is fixedly connected to the top of the front side of the limiting post, the connecting plate is fixedly connected to the bottom of the front side of the support rod, the protective shell is fixedly connected to the top of the workbench, the water tank is fixedly connected to the left side of the inner side of the protective shell, the pressure pump is fixedly connected to the right side of the inner side of the protective shell, the left side of the pressure pump is fixedly connected to the right side of the water tank, the right side of the pressure pump is fixedly connected to the top of the connecting plate, and the nozzle is fixedly connected to the bottom of the connecting plate.

[0009] Preferably, the limiting mechanism includes a column, a lifting groove, a sliding groove, a push rod, a locking rod, a moving groove, a return spring, a film-releasing roller, a connecting shaft, and a second motor, with the column fixedly connected to the front side of the top of the worktable.

[0010] Preferably, the lifting groove is located on the inner side of the top of the column, the sliding groove is located on the inner side of the bottom of the left lifting groove, the push rod is slidably connected to the inner side of the sliding groove, the locking rod is slidably connected to the left side of the film feeding roller, the moving groove is located on the inner side of the left side of the film feeding roller, the return spring is fixedly connected to the inner side of the moving groove, and the left side of the return spring is in contact with the right side of the locking rod.

[0011] Preferably, the left side of the film-dispensing roller is movably connected to the inner side of the slide groove, the right side of the film-dispensing roller is snapped into the inner side of the connecting shaft, the connecting shaft is rotatably connected to the inner side of the right lifting groove, the second motor is fixedly connected to the right side of the right column, and the output end of the left side of the second motor passes through the column and is fixedly connected to the left side of the connecting shaft.

[0012] Preferably, a third motor is fixedly connected to the inner side of the bottom of the left column, a limit plate is fixedly connected to the front side of the top of the workbench, a fixing block is fixedly connected to the inner side of the limit plate, a rotating shaft is rotatably connected to the inner side of the fixing block, lead screws are fixedly connected to both sides of the rotating shaft, the two lead screws have opposite thread directions, a slider is threaded to the surface of the lead screw, a connecting rod is fixedly connected to the top of the slider, a retaining ring is fixedly connected to the top of the connecting rod, and the output end of the third motor on the right side is fixedly connected to the left side of the left lead screw through the limit plate.

[0013] Preferably, a collection tray is fixedly connected to the top of the protective shell, and the front side of the bottom of the collection tray is fixedly connected to the top of the workbench.

[0014] Preferably, a reinforcing ring is fixedly connected to the bottom of the support rod, and the side of the reinforcing ring away from the support rod is fixedly connected to the top of the connecting plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The cleaning mechanism of this application uses a first motor to drive the top gear to rotate. The top gear and the bottom gear mesh with each other, causing the two cleaning rollers to rotate in opposite directions. This can wipe and clean the diaphragm surface, removing dust and impurities. At the same time, the pressure pump draws cleaning agent from the water tank and sprays it onto the diaphragm through the nozzle to further rinse the diaphragm surface, improve the cleaning effect, and prevent impurities from affecting the diaphragm performance during the heat setting process.

[0017] 2. The limiting mechanism of this application slides within the slide groove via a push rod, which in turn pushes the locking rod to move within the moving groove, compressing the return spring and separating the locking rod from the film-dispensing roller. This facilitates the disassembly and installation of the film-dispensing roller, making it easier to replace film-dispensing rollers of different specifications or those that have been used up, thereby improving production efficiency. The film-dispensing roller is driven to rotate by a second motor, ensuring its stability during rotation and allowing the diaphragm to be dispensed evenly and smoothly, which is beneficial for subsequent heat setting. A third motor drives the lead screw to rotate. Since the threads of the two lead screws are in opposite directions, the slider moves towards or away from each other on the lead screw. Through the connecting rod, the retaining ring moves, which limits the position of the diaphragm, ensuring that the diaphragm is in the correct position when entering the heat setting stage, thus improving the quality and consistency of heat setting. Attached Figure Description

[0018] Figure 1 This is an overall structural diagram of the heat setting device for lithium-ion battery separator production according to the present invention.

[0019] Figure 2 This is a schematic diagram of the structure of the pressure pump of this utility model;

[0020] Figure 3 This is a schematic diagram of the nozzle structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the film-releasing roller of this utility model;

[0022] Figure 5 This utility model Figure 4 Enlarged view of point A in the middle;

[0023] Figure 6 This utility model Figure 4 Enlarged view of point B in the middle;

[0024] Figure 7 This is a schematic diagram of the rotating shaft of this utility model.

[0025] In the diagram, 1. Workbench; 2. Support column; 3. Heating roller; 4. Cleaning mechanism; 401. Limiting column; 402. First motor; 403. Gear; 404. Cleaning roller; 405. Support rod; 406. Connecting plate; 407. Protective shell; 408. Water tank; 409. Pressure pump; 410. Nozzle; 5. Limiting mechanism; 501. Column; 502. Lifting groove; 503. Slide groove; 504. Push rod; 505. Clamping rod; 506. Moving groove; 507. Return spring; 508. Film feeding roller; 509. Connecting shaft; 510. Second motor; 6. Third motor; 7. Limiting plate; 8. Fixing block; 9. Rotating shaft; 10. Lead screw; 11. Slider; 12. Connecting rod; 13. Snap ring; 14. Collection tray; 15. Reinforcing ring. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-7 The present invention provides the following technical solution:

[0028] A heat setting device for lithium-ion battery separator production includes a worktable 1, two sets of support columns 2 are fixedly connected to the rear side of the top of the worktable 1, two heating rollers 3 are rotatably connected to the inner side of the top of the support columns 2, a cleaning mechanism 4 is fixedly connected to the top of the worktable 1, and a limit mechanism 5 is fixedly connected to the front side of the top of the worktable 1.

[0029] The cleaning mechanism 4 includes a limiting post 401, a first motor 402, a gear 403, a cleaning roller 404, a support rod 405, a connecting plate 406, a protective shell 407, a water tank 408, a pressurizing pump 409, and several nozzles 410. The limiting post 401 is fixedly connected to both sides of the top of the workbench 1. The first motor 402 is fixedly connected to the inner side of the top of the left limiting post 401. The top gear 403 is fixedly connected to the output end on the right side of the first motor 402. The bottom gear 403 is rotatably connected to the inner side of the limiting post 401. The top gear 403 and the bottom gear 403 mesh with each other. The left side of the cleaning roller 404 is fixedly connected to the right side of the top gear 403 and the bottom gear 403, respectively.

[0030] In this embodiment: the workbench 1 supports and limits the two sets of support columns 2, the cleaning mechanism 4, and the limiting mechanism 5. The support columns 2 support and limit the heating roller 3. The heating roller 3 heats the lithium-ion battery separator, achieving thermal shaping of the separator and making the microporous structure of the separator more stable. The limiting column 401 supports and limits the first motor 402, the gear 403, and the support rod 405. The first motor 402 drives the top gear 403 to rotate, which in turn drives the bottom gear meshing with it. Gear 403 rotates in reverse, causing the two cleaning rollers 404 to rotate in opposite directions, effectively wiping and cleaning the diaphragm surface. The top gear 403 and bottom gear 403 mesh with each other, transmitting power from the first motor 402 to the cleaning rollers 404, enabling them to effectively wipe and clean the diaphragm surface. Driven by the first motor 402 and gear 403, the cleaning rollers 404 rotate directly in contact with the diaphragm surface, wiping away dust, impurities, and other contaminants, preventing these impurities from affecting the heat setting of the diaphragm. Regarding effectiveness and subsequent performance, the support rod 405 supports and limits the connecting plate 406, which distributes and guides the cleaning agent to each nozzle and also supports and limits the nozzle. The protective shell 407 protects the water tank 408 and the pressure pump 409. The water tank 408 stores the cleaning agent to provide cleaning agent for diaphragm flushing, ensuring continuous cleaning. A filling pipe is fixedly connected to the top left side of the water tank 408, with the top of the filling pipe penetrating the protective shell 407. It extends to the outside of the protective shell 407, and a plug is snapped into the inside of the top of the filling tube to facilitate the user to add cleaning fluid to the inside of the water storage tank 408. The pressure pump 409 draws out and pressurizes the water in the water storage tank 408, and delivers it to the nozzle 410 through the connecting plate 406, so that the nozzle 410 can spray water at a certain pressure, enhance the rinsing effect on the diaphragm surface, and remove impurities more effectively. The nozzle 410 sprays the pressurized water onto the diaphragm surface in a suitable manner, and works with the cleaning roller 404 to achieve all-round cleaning of the diaphragm.

[0031] Specifically, such as Figure 2 , Figure 3 As shown, the right side of the cleaning roller 404 is rotatably connected to the left side of the right limit post 401, the support rod 405 is fixedly connected to the top of the front side of the limit post 401, the connecting plate 406 is fixedly connected to the bottom of the front side of the support rod 405, the protective shell 407 is fixedly connected to the top of the workbench 1, the water tank 408 is fixedly connected to the left side of the inner side of the protective shell 407, the pressure pump 409 is fixedly connected to the right side of the inner side of the protective shell 407, the left side of the pressure pump 409 is fixedly connected to the right side of the water tank 408, the right side of the pressure pump 409 is fixedly connected to the top of the connecting plate 406, and the nozzle 410 is fixedly connected to the bottom of the connecting plate 406.

[0032] Specifically, such as Figure 4 , Figure 5 , Figure 6 As shown, the limiting mechanism 5 includes a column 501, a lifting groove 502, a sliding groove 503, a push rod 504, a locking rod 505, a moving groove 506, a return spring 507, a film feeding roller 508, a connecting shaft 509, and a second motor 510. The column 501 is fixedly connected to the front side of the top of the workbench 1.

[0033] Specifically, such as Figure 4 , Figure 5 , Figure 6 As shown, the lifting groove 502 is opened on the inner side of the top of the column 501, the sliding groove 503 is opened on the inner side of the bottom of the left lifting groove 502, the push rod 504 is slidably connected to the inner side of the sliding groove 503, the locking rod 505 is slidably connected to the left side of the film feeding roller 508, the moving groove 506 is opened on the inner side of the left side of the film feeding roller 508, and the return spring 507 is fixedly connected to the inner side of the moving groove 506. The left side of the return spring 507 contacts the right side of the locking rod 505.

[0034] In this embodiment: the column 501 supports and limits the lifting groove 502, the sliding groove 503, the connecting shaft 509, and the second motor 510. The lifting groove 502 provides space for the installation and rotation of the connecting shaft 509, and also provides operating space for the snap-fit ​​and disassembly of the right side of the film feeding roller 508, facilitating the replacement and maintenance of the film feeding roller 508. The sliding groove 503 is located on the inner bottom of the left lifting groove 502, providing space for the movable connection between the push rod 504 and the left side of the film feeding roller 508, allowing the push rod 504 to move within the sliding groove 502. The push rod 504 slides within the slide groove 503, pushing the clamping rod 505 to move within the moving groove 506, compressing the return spring 507, thus separating the film-dispensing roller 508 from the clamping rod 505. This facilitates the disassembly and replacement of the film-dispensing roller 508, improving production efficiency. The clamping rod 505 is slidably connected to the left side of the film-dispensing roller 508 and, under the action of the return spring 507, tightly engages with the film-dispensing roller 508, fixing the film-dispensing roller 508 in a suitable position, ensuring that the film-dispensing roller 508... To ensure stability during operation, the moving groove 506 provides space for the movement of the clamping rod 505, allowing it to slide within the groove under the action of the push rod 504. This enables the installation and removal of the film-feeding roller 508. When the push rod 504 pushes the clamping rod 505, the return spring 507 is compressed. When the push rod 504 retracts, the spring force of the return spring 507 resets the clamping rod 505, ensuring a tight connection between the clamping rod 505 and the film-feeding roller 508, and guaranteeing the stable installation of the film-feeding roller 508. 508 is used to place the lithium-ion battery separator roll. It rotates under the drive of the second motor 510 and the connecting shaft 509 to evenly release the separator, providing continuous separator material for subsequent cleaning and heat setting. The connecting shaft 509 is rotatably connected to the inside of the right lifting groove 502 and is engaged with the right side of the film-releasing roller 508. It transmits the power of the second motor 510 to the film-releasing roller 508, enabling the film-releasing roller 508 to rotate stably and ensuring the normal release of the separator. The second motor 510 provides power for the rotation of the connecting shaft 509 and the film-releasing roller 508.

[0035] Specifically, such as Figure 4 , Figure 5 , Figure 6 As shown, the left side of the film feeding roller 508 is movably connected to the inner side of the slide groove 503, and the right side of the film feeding roller 508 is snapped into the inner side of the connecting shaft 509. The connecting shaft 509 is rotatably connected to the inner side of the right lifting groove 502. The second motor 510 is fixedly connected to the right side of the right column 501, and the output end of the left side of the second motor 510 passes through the column 501 and is fixedly connected to the left side of the connecting shaft 509.

[0036] Specifically, such as Figure 1 , Figure 4 , Figure 7As shown, a third motor 6 is fixedly connected to the inner side of the bottom of the left column 501. A limit plate 7 is fixedly connected to the front side of the top of the workbench 1. A fixing block 8 is fixedly connected to the inner side of the limit plate 7. A rotating shaft 9 is rotatably connected to the inner side of the fixing block 8. Lead screws 10 are fixedly connected to both sides of the rotating shaft 9. The two lead screws 10 have opposite thread directions. A slider 11 is threadedly connected to the surface of the lead screw 10. A connecting rod 12 is fixedly connected to the top of the slider 11. A retaining ring 13 is fixedly connected to the top of the connecting rod 12. The output end of the third motor 6 on the right side passes through the limit plate 7 and is fixedly connected to the left side of the left lead screw 10.

[0037] In this embodiment: A third motor 6 drives the lead screw 10 to rotate, providing power for adjusting the diaphragm position. A limiting plate 7 supports and limits the fixed block 8 and the lead screw 10. The fixed block 8 provides support and a base for the rotating shaft 9, enabling it to rotate stably and thus drive the lead screw 10 to rotate. The rotating shaft 9 allows the left lead screw 10 to rotate synchronously with the right lead screw 10. The lead screws 10 are fixedly connected to both sides of the rotating shaft 9, with opposite thread directions. When the lead screw 10 rotates, the slider 11 can move towards or away from the lead screw 10, thereby achieving the adjustment of the diaphragm position. The position of the retaining ring 13 is adjusted by setting a slider 11, which is threadedly connected to the surface of the lead screw 10. When the lead screw 10 rotates, the slider 11 moves along the lead screw 10 and is connected to the retaining ring 13 through the connecting rod 12, which drives the retaining ring 13 to move synchronously. The connecting rod 12 connects the slider 11 and the retaining ring 13, and transmits the movement of the slider 11 to the retaining ring 13, so that the retaining ring 13 can move with the movement of the slider 11. The retaining ring 13 consists of an upper retaining ring 13 and a lower retaining ring 13. The lower retaining ring 13 is fixedly connected to the top of the connecting rod 12, and the upper retaining ring 13 is rotatably connected to the top of the lower retaining ring 13. By rotating the upper retaining ring 13, the upper and lower retaining rings 13 can be opened and closed.

[0038] Specifically, such as Figure 1 As shown, a collection tray 14 is fixedly connected to the top of the protective shell 407, and the front side of the bottom of the collection tray 14 is fixedly connected to the top of the workbench 1.

[0039] Specifically, such as Figure 2 As shown, a reinforcing ring 15 is fixedly connected to the bottom of the support rod 405, and the side of the reinforcing ring 15 away from the support rod 405 is fixedly connected to the top of the connecting plate 406.

[0040] In this embodiment: By setting up a collection tray 14, wastewater will be generated during the process of cleaning the diaphragm by spraying water through the nozzle 410 of the cleaning mechanism 4. The collection tray 14 is fixed to the top of the protective shell 407 and connected to the workbench 1 at the bottom front side, which can effectively collect this wastewater, prevent the wastewater from flowing onto the workbench 1 at will, keep the workbench 1 and the surrounding environment clean, and reduce the risk of corrosion to the equipment that may be caused by the accumulation of wastewater. By setting up a reinforcing ring 15, the reinforcing ring 15 is fixed between the bottom of the support rod 405 and the top of the connecting plate 406, which plays the role of reinforcing the connection between the support rod 405 and the connecting plate 406.

[0041] Working principle: First, the operator moves the workbench 1 to the desired working position. Then, the operator separates the cap from the filling tube and adds cleaning agent into the water tank 408. After the cleaning agent is added, the cap is securely reattached to the filling tube. Next, the operator rotates the upper retaining ring 13 to open it. Then, the operator pushes the push rod 504 towards the film feeding roller 508. When the push rod 504 contacts the retaining rod 505, it pushes the retaining rod 505 into the moving groove 506. During the process of the retaining rod 505 entering the moving groove 506, it compresses the return spring 507, causing the return spring 507 to store elastic potential energy. When the left side of the retaining rod 505 is completely in contact with the groove... After separation of 503, the operator can easily separate the right side of the film-dispensing roller 508 from the connecting shaft 509 and remove the film-dispensing roller 508 along the lifting groove 502. At this time, the operator places the lithium-ion battery separator that needs to be heat-set on the surface of the film-dispensing roller 508, and then pushes the locking rod 505 into the moving groove 506 again. Next, the film-dispensing roller 508 is moved downward along the lifting groove 502. When the film-dispensing roller 508 moves to the bottom of the lifting groove 502, the operator first locks the right side of the film-dispensing roller 508 with the connecting shaft 509, and after the locking rod 505 on the left side of the film-dispensing roller 508 is aligned with the slide groove 503, the return spring 507 releases its elastic potential energy due to no longer being under pressure, driving the locking rod 505 into the slide groove 503. The film-laying roller 508 is now installed after the part moves and completes the locking action. Next, the operator rotates the upper retaining ring 13 to close it with the lower retaining ring 13. Then, the operator powers on and starts the third motor 6. The third motor 6 then drives the left lead screw 10 to rotate. Since the left lead screw 10 is connected to the rotating shaft 9, its rotation synchronously drives the right lead screw 10 to rotate. At this time, the slider 11 moves along the surface of the lead screw 10 under the rotation of the lead screw 10. During this movement, the slider 11 drives the connecting rod 12 and the retaining ring 13 to move synchronously towards or away from each other. When the retaining ring 13 contacts both sides of the lithium-ion battery separator, it can limit the separator, keeping the lithium-ion battery separator in place. After adjusting the diaphragm position, the operator turns off the third motor 6. Next, the operator pulls one end of the lithium-ion battery diaphragm, smoothly passing it through the middle area of ​​the two cleaning rollers 404, and continues moving it backward until it passes through the middle position of the two sets of heating rollers 3. At this point, the operator powers on and starts the pressure pump 409, which extracts the cleaning agent from the water tank 408, pressurizes it, and delivers it to the connecting plate 406. The connecting plate 406 distributes the cleaning agent to each nozzle, which then sprays the cleaning agent onto the surface of the lithium-ion battery diaphragm. Simultaneously, the operator powers on and starts the second motor 510 and the first motor 402. The second motor 510 drives the connecting shaft 509 to rotate.The connecting shaft 509 drives the film-releasing roller 508 to rotate, releasing the lithium-ion battery separator at a uniform speed. The first motor 402 drives the top gear 403 to rotate. Because the top gear 403 meshes with the bottom gear 403, the two gears 403 synchronously drive the upper and lower cleaning rollers 404 to rotate, meticulously cleaning the surface of the lithium-ion battery separator. When the cleaned lithium-ion battery separator enters the two sets of heating rollers 3, the operator powers on and starts the two sets of heating rollers 3. The two sets of heating rollers 3 then begin to work, performing efficient heat-setting treatment on the surface of the lithium-ion battery separator. Finally, the operator properly stores the heat-set lithium-ion battery separator.

[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heat-setting apparatus for the production of lithium-ion battery separators, comprising a worktable (1), characterized in that: Two sets of support columns (2) are fixedly connected to the rear side of the top of the workbench (1). Two heating rollers (3) are rotatably connected to the inner side of the top of the support columns (2). A cleaning mechanism (4) is fixedly connected to the top of the workbench (1). A limit mechanism (5) is fixedly connected to the front side of the top of the workbench (1). The cleaning mechanism (4) includes a limiting post (401), a first motor (402), a gear (403), a cleaning roller (404), a support rod (405), a connecting plate (406), a protective shell (407), a water tank (408), a pressurizing pump (409), and several nozzles (410). The limiting post (401) is fixedly connected to both sides of the top of the workbench (1). The first motor (402) is fixedly connected to the inner side of the top of the left limiting post (401). The top gear (403) is fixedly connected to the output end on the right side of the first motor (402). The bottom gear (403) is rotatably connected to the inner side of the limiting post (401). The top gear (403) and the bottom gear (403) mesh with each other. The left side of the cleaning roller (404) is fixedly connected to the right side of the top gear (403) and the bottom gear (403), respectively.

2. The heat setting device for lithium-ion battery separator production according to claim 1, characterized in that: The right side of the cleaning roller (404) is rotatably connected to the left side of the right limiting post (401). The support rod (405) is fixedly connected to the top of the front side of the limiting post (401). The connecting plate (406) is fixedly connected to the bottom of the front side of the support rod (405). The protective shell (407) is fixedly connected to the top of the workbench (1). The water tank (408) is fixedly connected to the left side of the inner side of the protective shell (407). The pressure pump (409) is fixedly connected to the right side of the inner side of the protective shell (407). The left side of the pressure pump (409) is fixedly connected to the right side of the water tank (408). The right side of the pressure pump (409) is fixedly connected to the top of the connecting plate (406). The nozzle (410) is fixedly connected to the bottom of the connecting plate (406).

3. The heat setting device for lithium-ion battery separator production according to claim 1, characterized in that: The limiting mechanism (5) includes a column (501), a lifting groove (502), a sliding groove (503), a push rod (504), a snap-fit ​​rod (505), a moving groove (506), a reset spring (507), a film-releasing roller (508), a connecting shaft (509), and a second motor (510). The column (501) is fixedly connected to the front side of the top of the workbench (1).

4. A heat-setting apparatus for lithium-ion battery separator production according to claim 3, characterized in that: The lifting groove (502) is located on the inner side of the top of the column (501), the sliding groove (503) is located on the inner side of the bottom of the left lifting groove (502), the push rod (504) is slidably connected to the inner side of the sliding groove (503), the locking rod (505) is slidably connected to the left side of the film feeding roller (508), the moving groove (506) is located on the inner side of the left side of the film feeding roller (508), the return spring (507) is fixedly connected to the inner side of the moving groove (506), and the left side of the return spring (507) is in contact with the right side of the locking rod (505).

5. A heat-setting apparatus for lithium-ion battery separator production according to claim 3, characterized in that: The left side of the film feeding roller (508) is movably connected to the inside of the slide groove (503), and the right side of the film feeding roller (508) is engaged with the inside of the connecting shaft (509). The connecting shaft (509) is rotatably connected to the inside of the right lifting groove (502). The second motor (510) is fixedly connected to the right side of the right column (501), and the output end of the left side of the second motor (510) passes through the column (501) and is fixedly connected to the left side of the connecting shaft (509).

6. A heat-setting apparatus for lithium-ion battery separator production according to claim 3, characterized in that: A third motor (6) is fixedly connected to the inner side of the bottom of the left column (501). A limiting plate (7) is fixedly connected to the front side of the top of the workbench (1). A fixing block (8) is fixedly connected to the inner side of the limiting plate (7). A rotating shaft (9) is rotatably connected to the inner side of the fixing block (8). A lead screw (10) is fixedly connected to both sides of the rotating shaft (9). The two lead screws (10) have opposite thread directions. A slider (11) is threadedly connected to the surface of the lead screw (10). A connecting rod (12) is fixedly connected to the top of the slider (11). A retaining ring (13) is fixedly connected to the top of the connecting rod (12). The output end of the third motor (6) on the right side passes through the limiting plate (7) and is fixedly connected to the left side of the left lead screw (10).

7. A heat-setting apparatus for lithium-ion battery separator production according to claim 1, characterized in that: The top of the protective shell (407) is fixedly connected to a collection tray (14), and the front side of the bottom of the collection tray (14) is fixedly connected to the top of the workbench (1).

8. A heat-setting apparatus for lithium-ion battery separator production according to claim 1, characterized in that: A reinforcing ring (15) is fixedly connected to the bottom of the support rod (405), and the side of the reinforcing ring (15) away from the support rod (405) is fixedly connected to the top of the connecting plate (406).

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