Membrane surface cooling device for lithium battery diaphragm production

Abstract

The invention relates to the technical field of lithium battery diaphragm cooling processing, in particular to a diaphragm surface cooling device for lithium battery diaphragm production, which is characterized in that a cooling mechanism is arranged in a cooling cabinet, communicated air boxes are arranged on the upper side and the lower side of a cold air blowing port, and conical pipe nozzles are arranged on the communicated air boxes; the cold air sprayed from the conical pipe nozzle cools the upper film surface and the lower film surface of the film product, and also has a cleaning effect on dust and other impurities adhered to the film surfaces; when the film product is subjected to air blowing cooling work, in order to prevent impurities adhered to the film surface from influencing the cooling work of the film product, a cooling auxiliary assembly is further arranged on the communicating air box to assist the cooling work of the film product, that is, when the film product passes through a cold air blowing opening in the cooling cabinet, the cooling work is carried out, and meanwhile the cooling work is carried out. A cleaning assembly in the cooling auxiliary assembly provides a cleaning effect on the upper face and the lower face of the film, that is, cleaning work is achieved through a soft bristle cleaning scraping strip arranged at the end of a bearing plate.

Description

Technical Field

[0001] The invention relates to the technical field of lithium battery diaphragm cooling processing, and in particular to a membrane surface cooling device for lithium battery diaphragm production. Background Art

[0002] The battery separator refers to a layer of separator material between the positive and negative electrodes of the battery. It is a very critical part of the battery and has a direct impact on the safety and cost of the battery. Its main function is to isolate the positive and negative electrodes and prevent the electrons in the battery from passing freely, while allowing the ions in the electrolyte to pass freely between the positive and negative electrodes. When the battery separator is produced, it needs to be cooled by a cooling device.

[0003] The Chinese patent document with the authorization announcement number CN213955769U discloses a cooling device for battery diaphragm production, such as Figure 1 As shown, the scheme includes a fixed seat, the top outer wall of the fixed seat is fixedly connected to a support plate, and one side outer wall of the support plate is fixedly connected to a support block, the top outer wall of the support block and the bottom outer wall of the support plate are fixedly connected to a cooling fan, one side of the top outer wall of the fixed seat is connected to a support frame through a hinge, and the two opposite outer walls of the support frame are rotatably connected to support rollers, and a second spring is fixedly connected between the support frame and the fixed seat. The scheme can prevent the diaphragm from folding together, which causes the device to reduce the cooling range of the battery diaphragm and affect the cooling efficiency of the battery diaphragm, and can speed up the cooling efficiency of the battery diaphragm by the device, and can prevent the phenomenon of the battery diaphragm sagging due to the gravity of the battery diaphragm from affecting the winding of the battery diaphragm. However, when the scheme is cooling the diaphragm, when the diaphragm passes through the cooling fan, only one side of the diaphragm is effectively cooled, and the corresponding back cooling effect is not good, which cannot meet the cooling requirements in the diaphragm production process.

[0004] To this end, the present invention proposes a membrane surface cooling device for lithium battery diaphragm production to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a membrane surface cooling device for lithium battery diaphragm production to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a membrane surface cooling device for lithium battery diaphragm production, comprising a cooling cabinet and a conveying support frame, wherein the cooling cabinet is provided with a cold air blowing port, and the conveying support frame is provided with an unwinding drum and a guide roller; The cooling cabinet is provided with a cooling mechanism, and the bottom end of the cooling cabinet is provided with a supporting base, the supporting base is provided with an auxiliary guide roller, and the auxiliary guide roller is arranged at a front port position close to the cold air blowing port.

[0007] Preferably, the cooling mechanism includes a conveying pipe body, a cold air input pipe, a connecting pipe fitting, a connecting air box, a conical tube nozzle and a cooling auxiliary component; the conveying pipe body is arranged on both sides of the cooling cabinet, and the conveying pipe body is connected to the cold air input pipe, a connecting pipe fitting is arranged in the middle position of the conveying pipe body, one end of the connecting pipe fitting is connected to the connecting air box, the connecting air box is symmetrically provided with two groups on the upper and lower sides of the cold air blowing port, and a conical tube nozzle is arranged on the connecting air box.

[0008] Preferably, a cooling auxiliary component is also provided on the connected air box, and the cooling auxiliary component includes a bearing seat, a loading groove, a loading body, a fixing plate, a fastening threaded column, an auxiliary handle, a movable support body, a connecting spring, a connecting cover plate, a support plate and a cleaning component; the bearing seat is fixedly arranged on the connected air box, and a loading groove is arranged in the bearing seat, the bottom end of the loading body is adapted to be snap-fitted with the loading groove, and fixing plates are symmetrically fixedly arranged at both ends of the loading body, the fixing plate is fixedly connected to the bearing seat by a fastening threaded column, and an auxiliary handle is fixedly arranged at one end of the fastening threaded column.

[0009] Preferably, a movable support body is movably inserted in the loading body, and openings are provided at both ends of the loading body. Connecting springs are equidistantly fixedly provided on one side of the movable support body, and the other end of the connecting spring is fixedly provided on a connecting cover plate. The connecting cover plate is fixedly connected to one end of the loading body by screws, and a support plate is symmetrically fixedly provided on the other side of the movable support body.

[0010] Preferably, the support plate is connected to the cleaning component, and the cleaning component includes a support shaft, a limit plate, a accommodating cavity, a connecting circle, a positioning slot, a connecting column, a load-bearing shaft, a load-bearing plate, a soft-bristle cleaning scraper and a positioning structure; the support shaft is plugged into the support plate, and a limit plate is fixedly provided at one end of the support shaft, and a accommodating cavity is provided at the other end of the support shaft, the limit plate is fixedly connected to the support plate by screws, the connecting circle is adapted to be placed in the accommodating cavity, and positioning slots are equidistantly provided on the outer side wall of the connecting circle, the connecting circle is fixedly provided at one end of the connecting column, and a load-bearing shaft is fixedly provided at the other end of the connecting column.

[0011] Preferably, the positioning slot is configured as a spherical groove, and the positioning slot and the supporting plate are configured at corresponding positions and have the same number of groups.

[0012] Preferably, a bearing plate is fixedly provided at equal intervals on the outer side wall of the bearing shaft, a soft-bristle cleaning scraper is provided at the end of the bearing plate, the connecting circle is positioned by a positioning structure, and the positioning structure is connected to the support shaft.

[0013] Preferably, the positioning structure includes a cylindrical pull head, a positioning card shaft, an auxiliary spring and a spherical head; the positioning card shaft is movably inserted in the support shaft, and one end of the positioning card shaft is fixedly provided with a cylindrical pull head, the other end of the positioning card shaft extends into the accommodating cavity, and the end is provided with a spherical head, the cylindrical pull head is fixedly provided with an auxiliary spring at the end connected to the positioning card shaft, the other end of the auxiliary spring is fixedly provided on the outer wall of the support shaft, and the positioning card shaft corresponds to the positioning card groove setting position of the outer wall of the connecting round block.

[0014] Preferably, the guide roller is provided with a cooling auxiliary limit accessory, and the cooling auxiliary limit accessory includes a limit regulating groove, a regulating slider, a connector, a positioning threaded column, a knob head, a limit support body, a bearing plate, a limit column, a fixed shaft, a connecting screw groove, a limit pressure cylinder, an auxiliary ball, a limit screw disk and a connecting accessory; the limit regulating groove is arranged on the outer side wall of the guide roller, and a regulating slider is slidably arranged in the limit regulating groove, the regulating slider is fixedly connected to the connector, a cylindrical threaded groove is arranged in the connector, and the cylindrical threaded groove extends to the regulating slider, and the positioning threaded column and the cylindrical thread The groove is adapted to be threadedly connected, one end of the positioning threaded column is fixedly provided with a knob head, the limiting support body is fixedly provided at the side position of the connecting body, and one end of the limiting support body is fixedly provided with a bearing plate, one side of the bearing plate is fixedly provided with a limiting column, one end of the limiting column is fixedly provided with a fixed shaft, one end of the fixed shaft is provided with a connecting screw groove, a limiting pressure cylinder is sleeved on the fixed shaft, and auxiliary balls are equidistantly embedded and movably provided on the inner side wall of the limiting pressure cylinder, the limiting screw disk is threadedly connected to the connecting screw groove, and the bearing plate is also connected to the connecting accessory.

[0015] Preferably, the connecting accessories include a positioning piece, a support bar, an auxiliary bearing body and a limiting ring body; the positioning piece is fixedly arranged at one end of the support bar, and the other end of the support bar is sleeved with an auxiliary bearing body, the positioning piece is fixedly connected to the supporting plate by screws, and the auxiliary bearing body is embedded in the limiting ring body.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The membrane surface cooling device for lithium battery diaphragm production designed by the present invention is provided with a cooling mechanism in a cooling cabinet, and a supporting base is provided at the bottom end of the cooling cabinet, an auxiliary guide roller is provided on the supporting base, and the auxiliary guide roller is arranged at a front port position close to the cold air blowing port, wherein a connecting air box is provided at the upper and lower sides of the cold air blowing port, and a conical tube nozzle is provided on the connecting air box, and the cooling air is input from the cold air input pipe, and then enters the connecting air box through the conveying pipe body and the connecting pipe fitting, and finally is ejected from the conical tube nozzle, so as to blow and cool the upper and lower membrane surfaces of the membrane product, and also has a cleaning effect on impurities such as dust adhering to the membrane surface; when the membrane product is blown and cooled, in order to avoid the impurities adhering to the membrane surface from affecting its cooling work, the present scheme also provides a cooling auxiliary component on the connecting air box to assist its cooling work, that is, when the membrane product passes through the cold air blowing port in the cooling cabinet, while the cooling work is being carried out, the cleaning component in the cooling auxiliary component provides a cleaning effect on the upper and lower surfaces of the membrane, that is, the cleaning work is achieved by the soft-bristled cleaning scraper provided at the end of the bearing plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the right side of the structure connection of the lithium battery diaphragm cooling device of the present invention; Figure 2 for Figure 1 A magnified schematic diagram of the structural connection at center A; Figure 3 It is a schematic diagram of the left side of the structure connection of the lithium battery diaphragm cooling device of the present invention; Figure 4 It is a schematic diagram of the cooling mechanism structure connection of the present invention; Figure 5 for Figure 4 A magnified schematic diagram of the structural connection at B in the middle; Figure 6 This is a schematic diagram of the structural connection of the cooling auxiliary component of the present invention; Figure 7 for Figure 6 A magnified schematic diagram of the structural connection at C in the middle; Figure 8 This is a schematic diagram of the connection between the carrier and the movable support structure of the present invention; Fig. 9 for Figure 8 The enlarged schematic diagram of the structural connection at D in the middle; Fig.10 The left side schematic diagram of the partial connection between the cleaning component and the positioning structure of the present invention; Fig.11 for Fig.10 The enlarged schematic diagram of the structural connection at E in the middle; Fig.12 The right side schematic diagram of the partial connection between the cleaning component and the positioning structure of the present invention; Fig.13 for Fig.12 The enlarged schematic diagram of the structural connection at F in the middle; Fig.14 This is a schematic diagram of the front side of the cooling auxiliary limiting accessory structure connection of the present invention; Fig.15 This is a schematic diagram of the rear side of the cooling auxiliary limiting accessory structure of the present invention; Fig.16 It is a schematic diagram of the right side of the cooling auxiliary limiting accessory structure connection of the present invention; Fig.17 for Fig.16 Enlarged schematic diagram of the structural connection at G in the middle.

[0018] In the figure: cooling cabinet 1, cold air blowing port 12, supporting base 13, auxiliary guide roller 14, conveying support frame 2, unwinding drum 21, guide roller 22, conveying pipe body 301, cold air input pipe 302, connecting pipe 303, connecting air box 304, conical pipe nozzle 305, bearing seat 401, loading groove 402, loading carrier 403, fixing plate 404, fastening threaded column 405, auxiliary handle 406, movable support body 407, connecting spring 408, connecting cover plate 409, supporting plate 410, supporting shaft 501, limiting plate 502, accommodating cavity 503, connecting round block 504, positioning card slot 50 5. Connecting column 506, bearing shaft 507, bearing plate 508, soft-bristle cleaning scraper 509, cylindrical pull head 601, positioning card shaft 602, auxiliary spring 603, spherical head 604, limit regulating groove 701, regulating slider 702, connecting body 703, positioning threaded column 704, knob head 705, limit support body 706, bearing plate 707, limit column 708, fixed shaft 709, connecting screw groove 710, limit pressure cylinder 711, auxiliary ball 712, limit screw disk 713, positioning sheet 801, support bar 802, auxiliary bearing body 803, limit ring body 804. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention are described clearly and completely below. The embodiments of the present invention and all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0020] Example 1: Please refer to Figure 1-Figure 17A film surface cooling device for lithium battery diaphragm production includes a cooling cabinet 1 and a conveying support frame 2, wherein the cooling cabinet 1 is provided with a cold air blowing port 12, and the conveying support frame 2 is provided with a reel 21 and a guide roller 22; wherein a cooling mechanism is provided in the cooling cabinet 1, and a supporting base 13 is provided at the bottom end of the cooling cabinet 1, and an auxiliary guide roller 14 is provided on the supporting base 13, and the auxiliary guide roller 14 is provided at a front port position close to the cold air blowing port 12, and the film product on the reel 21 passes through the cold air blowing port 12 in the cooling cabinet 1, and then is cooled by the cooling mechanism in the cooling cabinet 1, and the cooling mechanism cools the film surfaces on the upper and lower sides of the film product.

[0021] Wherein, connecting air boxes 304 are arranged on the upper and lower sides of the cold air blowing port 12, and a conical tube nozzle 305 is arranged on the connecting air box 304. The cooling air is input from the cold air input pipe 302, and then enters the connecting air box 304 through the conveying pipe body 301 and the connecting pipe fitting 303, and finally is ejected from the conical tube nozzle 305, so as to blow and cool the upper and lower membrane surfaces of the membrane product, and also has a cleaning effect on impurities such as dust adhering to the membrane surface, that is, the conveying pipe body 301 in the cooling mechanism is arranged on both sides of the cooling cabinet 1, and the conveying pipe body 301 is connected to the cold air input pipe 302, and a connecting pipe fitting 303 is arranged in the middle position of the conveying pipe body 301, and one end of the connecting pipe fitting 303 is connected to the connecting air box 304, and two groups of connecting air boxes 304 are symmetrically arranged on the upper and lower sides of the cold air blowing port 12, and a conical tube nozzle 305 is arranged on the connecting air box 304.

[0022] When the film product is blown to cool, in order to prevent the impurities adhering to the film surface from affecting its cooling work, the present solution is further provided with a cooling auxiliary component on the connecting air box 304 to assist its cooling work, that is, when the film product passes through the cold air blowing port 12 in the cooling cabinet 1, while the cooling work is being carried out, the cleaning component in the cooling auxiliary component provides a cleaning effect on the upper and lower surfaces of the film, that is, the cleaning work is achieved by the soft-bristled cleaning scraper 509 arranged at the end of the bearing plate 508, that is, the connecting air box 304 is also provided with a cooling auxiliary component, and the cooling auxiliary component includes a bearing seat 401, a loading groove 402, a carrier 403, a fixing plate 404, and a fastening screw The support member 401 is fixedly arranged on the communication box 304, and a loading groove 402 is arranged in the support member 401, the bottom end of the loading member 403 is adapted to be snapped with the loading groove 402, and the two ends of the loading member 403 are symmetrically fixed with fixed plates 404, the fixed plates 404 are fixedly connected with the support member 401 through the fastening threaded column 405, and an auxiliary handle 406 is fixedly arranged at one end of the fastening threaded column 405; a movable support member 407 is movably inserted in the loading member 403, and the loading member 40 3 are provided with openings at both ends, one side of the movable support body 407 is equidistantly fixed with a connecting spring 408, the other end of the connecting spring 408 is fixedly set on a connecting cover plate 409, the connecting cover plate 409 is fixedly connected to one end of the carrier 403 by screws, and the other side of the movable support body 407 is symmetrically fixed with a supporting plate 410; the supporting plate 410 is connected to the cleaning component, and the cleaning component includes a supporting shaft 501, a limiting plate 502, a accommodating cavity 503, a connecting round block 504, a positioning slot 505, a connecting column 506, a bearing shaft body 507, a bearing plate 508, a soft-bristled cleaning scraper 509 and a positioning structure; the supporting shaft 50 1 is inserted and arranged in the support plate 410, and a limit plate 502 is fixedly arranged at one end of the support shaft 501, and a receiving cavity 503 is arranged at the other end of the support shaft 501. The limit plate 502 is fixedly connected to the support plate 410 by screws, and the connecting round block 504 is adapted to be placed in the receiving cavity 503, and the outer side wall of the connecting round block 504 is equidistantly arranged with positioning grooves 505, and the connecting round block 504 is fixedly arranged at one end of the connecting column 506, and a bearing shaft 507 is fixedly arranged at the other end of the connecting column 506; the positioning groove 505 is arranged as a spherical groove, and the positioning groove 505 and the bearing plate 508 are arranged at corresponding positions and the number of groups is the same.

[0023] In addition, in the present solution, multiple groups of bearing plates 508 are arranged on the bearing shaft body 507, that is, multiple groups of soft-bristle cleaning scrapers 509 are arranged. When cleaning the membrane surface, only one group of soft-bristle cleaning scrapers 509 can be used. After working for a long time, the soft-bristle cleaning scrapers 509 for cleaning work need to be replaced with new ones. In the present solution, the position of the soft-bristle cleaning scraper 509 that needs to be replaced can be adjusted without disassembly, that is, the soft-bristle cleaning scraper 509 in the adjacent position can be adjusted to the cleaning working position, that is, the bearing shaft is directly rotated. The bearing shaft body 507 is simply positioned by the clamping connection of the positioning clamping shaft 602 and the positioning clamping groove 505 at the side of the connecting round block 504, and a spherical head 604 is arranged at the clamping end of the positioning clamping shaft 602, and the spherical head 604 is adapted and fitted with the positioning clamping groove 505. The outer wall of the bearing shaft body 507 is equidistantly fixed with a bearing plate 508, and the end of the bearing plate 508 is provided with a soft-bristled cleaning scraper 509. The connecting round block 504 is positioned by the provided positioning structure, and the positioning structure and The support shaft 501 is connected and set; the positioning card shaft 602 in the positioning structure is movably inserted and set in the support shaft 501, and one end of the positioning card shaft 602 is fixedly provided with a cylindrical pull head 601, and the other end of the positioning card shaft 602 extends into the accommodating cavity 503, and the end is provided with a spherical head 604, and the cylindrical pull head 601 is fixedly provided with an auxiliary spring 603 at the end connected to the positioning card shaft 602, and the other end of the auxiliary spring 603 is fixedly provided on the outer wall of the support shaft 501, and the positioning card shaft 602 is connected with the connecting round block 504. The positioning slot 505 on the outer wall is set in a corresponding position; that is, in the absence of external force, it can provide a simple positioning function. When the position of the soft-bristle cleaning scraper 509 needs to be adjusted, the bearing shaft 507 can be directly rotated by hand; when all the soft-bristle cleaning scrapers 509 need to be cleaned or replaced, the carrier 403 can be directly removed, and the carrier 403 is fixed to the bearing seat 401 by tightening the threaded column 405, that is, the carrier 403 is detachably arranged, which is convenient for subsequent maintenance work and easy to operate.

[0024] When the film product is conveyed from the guide roller 22, in order to avoid the position of the film product from being shifted during the conveying process, that is, when passing through the cold air blowing port 12, to avoid the film body from shifting out of the cooling area and affecting its cooling work, the present scheme also provides a cooling auxiliary limiting accessory on the guide roller 22, and the guide roller 22 is provided with a cooling auxiliary limiting accessory, which includes a limiting regulating groove 701, a regulating slider 702, a connecting body 703, a positioning threaded column 704, a knob head 705, a limiting support body 706, a bearing plate 707, a limiting column 708, a fixed shaft 709, a connecting screw groove 710, a limiting pressure cylinder 711, an auxiliary ball 712, and a limiting screw plate 713. 13 and connecting accessories; the limit regulating groove 701 is arranged on the outer side wall of the guide roller 22, and a regulating slider 702 is slidably arranged in the limit regulating groove 701, the regulating slider 702 is fixedly connected with the connecting body 703, a cylindrical thread groove is arranged in the connecting body 703, and the cylindrical thread groove extends into the regulating slider 702, the positioning thread column 704 is threadedly connected with the cylindrical thread groove, and a knob head 705 is fixedly arranged at one end of the positioning thread column 704, a limit support body 706 is fixedly arranged at the side position of the connecting body 703, and a bearing plate 707 is fixedly arranged at one end of the limit support body 706, and a limit column 708 is fixedly arranged on one side of the bearing plate 707, and the limit column A fixed shaft 709 is fixedly provided at one end of the body 708, a connecting screw groove 710 is provided at one end of the fixed shaft 709, a limiting pressure cylinder 711 is sleeved on the fixed shaft 709, and an auxiliary ball 712 is movably provided on the inner side wall of the limiting pressure cylinder 711 at equal intervals, a limiting screw disk 713 is threadedly connected to the connecting screw groove 710, and the bearing plate 707 is also connected to the connecting accessories; the connecting accessories include a positioning piece 801, a support bar 802, an auxiliary bearing body 803 and a limiting ring body 804; the positioning piece 801 is fixedly provided at one end of the support bar 802, and the other end of the support bar 802 is sleeved with an auxiliary bearing body 803, and the positioning piece 801 is connected to the bearing body 803 by screws The carrier plate 707 is fixedly connected, and the auxiliary bearing body 803 is embedded in the limiting ring body 804; that is, according to the width of the membrane product, the position of the limiting support body 706 is adjusted, that is, the adjustment is carried out by sliding the adjusting slider 702 in the limiting adjustment groove 701. After reaching the appropriate position, the positioning threaded column 704 is tightened by the knob head 705 to position the limiting support body 706. The membrane product passes through the limiting support body 706 and is limited by the set limiting pressure cylinder 711. Furthermore, the side of the membrane product is limited by the set limiting ring body 804 to avoid position displacement of the membrane product during transportation, which has a corresponding auxiliary effect on its cooling work.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A membrane surface cooling device for lithium battery diaphragm production, comprising a cooling cabinet (1) and a conveying support frame (2), wherein the cooling cabinet (1) is provided with a cold air blowing port (12), and the conveying support frame (2) is provided with an unwinding drum (21) and a guide roller (22); Features: A cooling mechanism is provided in the cooling cabinet (1), and a support base (13) is provided at the bottom end of the cooling cabinet (1), an auxiliary guide roller (14) is provided on the support base (13), and the auxiliary guide roller (14) is arranged at a front port position close to the cold air blowing port (12); The cooling mechanism comprises a delivery pipe body (301), a cold air input pipe (302), a connecting pipe (303), a connecting air box (304), a conical pipe nozzle (305) and a cooling auxiliary component; the delivery pipe body (301) is arranged on both sides of the cooling cabinet (1), and the delivery pipe body (301) is connected to the cold air input pipe (302); a connecting pipe (303) is arranged in the middle of the delivery pipe body (301); one end of the connecting pipe (303) is connected to the connecting air box (304); two groups of connecting air boxes (304) are symmetrically arranged on the upper and lower sides of the cold air blowing port (12); and a conical pipe nozzle (305) is arranged on the connecting air box (304).

2. The membrane surface cooling device for lithium battery diaphragm production according to claim 1, characterized in that: The connected air box (304) is also provided with a cooling auxiliary component, which comprises a bearing seat (401), a loading groove (402), a loading body (403), a fixing plate (404), a fastening threaded column (405), an auxiliary handle (406), a movable support body (407), a connecting spring (408), a connecting cover plate (409), a supporting plate (410) and a cleaning component; the bearing seat (401) is fixedly arranged on the connected air box (304), and a loading groove (402) is arranged in the bearing seat (401), the bottom end of the loading body (403) is adapted to be snap-fitted with the loading groove (402), and fixing plates (404) are symmetrically fixedly arranged at both ends of the loading body (403), the fixing plates (404) are fixedly connected to the bearing seat (401) by means of a fastening threaded column (405), and an auxiliary handle (406) is fixedly arranged at one end of the fastening threaded column (405).

3. The membrane surface cooling device for lithium battery diaphragm production according to claim 2, characterized in that: A movable support body (407) is movably inserted in the loading body (403), and openings are provided at both ends of the loading body (403). A connecting spring (408) is equidistantly fixedly provided on one side of the movable support body (407), and the other end of the connecting spring (408) is fixedly provided on a connecting cover plate (409). The connecting cover plate (409) is fixedly connected to one end of the loading body (403) by means of screws, and a supporting plate (410) is symmetrically fixedly provided on the other side of the movable support body (407).

4. The membrane surface cooling device for lithium battery diaphragm production according to claim 2, characterized in that: The support plate (410) is connected to the cleaning component, and the cleaning component comprises a support shaft (501), a limiting disk (502), a containing cavity (503), a connecting round block (504), a positioning slot (505), a connecting column (506), a bearing shaft (507), a bearing plate (508), a soft-bristled cleaning scraper (509) and a positioning structure; the support shaft (501) is plugged into the support plate (410), and one end of the support shaft (501) is fixedly provided with the limiting disk (502). 2), a receiving cavity (503) is provided at the other end of the support shaft (501), the limiting plate (502) is fixedly connected to the supporting plate (410) by means of screws, the connecting round block (504) is adapted to be placed in the receiving cavity (503), and the outer wall of the connecting round block (504) is equidistantly provided with positioning slots (505), the connecting round block (504) is fixedly provided at one end of the connecting column (506), and the other end of the connecting column (506) is fixedly provided with a bearing shaft (507).

5. The membrane surface cooling device for lithium battery diaphragm production according to claim 4, characterized in that: The positioning slot (505) is configured as a spherical groove, and the positioning slot (505) and the bearing plate (508) are configured at corresponding positions and have the same number of groups.

6. The membrane surface cooling device for lithium battery diaphragm production according to claim 4, characterized in that: The outer wall of the bearing shaft (507) is fixedly provided with bearing plates (508) at equal intervals, and the end of the bearing plate (508) is provided with a soft-bristled cleaning scraper (509). The connecting round block (504) is positioned by means of a positioning structure, and the positioning structure is connected to the support shaft (501).

7. The membrane surface cooling device for lithium battery diaphragm production according to claim 4, characterized in that: The positioning structure comprises a cylindrical pull head (601), a positioning clamping shaft (602), an auxiliary spring (603) and a spherical head (604); the positioning clamping shaft (602) is movably inserted in the support shaft (501), and one end of the positioning clamping shaft (602) is fixedly provided with a cylindrical pull head (601), the other end of the positioning clamping shaft (602) extends into the accommodating cavity (503), and the end is provided with a spherical head (604); the cylindrical pull head (601) is fixedly provided with an auxiliary spring (603) at the end connected to the positioning clamping shaft (602), and the other end of the auxiliary spring (603) is fixedly provided on the outer wall of the support shaft (501); the positioning clamping shaft (602) corresponds to the location of the positioning clamping groove (505) on the outer wall of the connecting round block (504).

8. The membrane surface cooling device for lithium battery diaphragm production according to claim 1, characterized in that: The guide roller (22) is provided with a cooling auxiliary limiting accessory, and the cooling auxiliary limiting accessory comprises a limiting regulating groove (701), a regulating slider (702), a connecting body (703), a positioning threaded column (704), a knob head (705), a limiting support body (706), a bearing plate (707), a limiting column (708), a fixed shaft (709), a connecting screw groove (710), a limiting pressure cylinder (711), an auxiliary ball (712), a limiting screw disk (713) and a connecting accessory; the limiting regulating groove (701) is provided on the outer side wall of the guide roller (22), and a regulating slider (702) is slidably provided in the limiting regulating groove (701), the regulating slider (702) is fixedly connected to the connecting body (703), a cylindrical threaded groove is provided in the connecting body (703), and the cylindrical threaded groove extends into the regulating slider (702), and the positioning threaded column (70 4) threadedly connected to the cylindrical thread groove, one end of the positioning thread column (704) is fixedly provided with a knob head (705), the limiting support body (706) is fixedly provided at the side position of the connecting body (703), and one end of the limiting support body (706) is fixedly provided with a bearing plate (707), one side of the bearing plate (707) is fixedly provided with a limiting column (708), one end of the limiting column (708) is fixedly provided with a fixed shaft (709), one end of the fixed shaft (709) is provided with a connecting screw groove (710), a limiting pressure cylinder (711) is sleeved on the fixed shaft (709), and the inner side wall of the limiting pressure cylinder (711) is equidistantly embedded and movably provided with auxiliary balls (712), the limiting screw disk (713) is threadedly connected to the connecting screw groove (710), and the bearing plate (707) is also connected to the connecting accessory.

9. The membrane surface cooling device for lithium battery diaphragm production according to claim 8, characterized in that: The connecting fitting comprises a positioning piece (801), a support bar (802), an auxiliary bearing body (803) and a limiting ring body (804); the positioning piece (801) is fixedly arranged at one end of the support bar (802), the other end of the support bar (802) is sleeved with the auxiliary bearing body (803), the positioning piece (801) is fixedly connected to the bearing plate (707) by means of screws, and the auxiliary bearing body (803) is embedded in the limiting ring body (804).

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