Automatic ultra-filtration membrane slit coating device

Abstract

The invention belongs to the technical field of ultrafiltration membrane slit coating devices, and particularly relates to an automatic ultrafiltration membrane slit coating device which comprises a rack, a feeding assembly is arranged on the side, away from a receiving mother roll, of the rack, and a coating assembly is arranged at the position, located between the receiving mother roll and the feeding assembly, of the surface of one side of a control box. When the non-woven fabric is conveyed to the surface of the conveying roller, the scraping plate can scrape the polysulfone coating on the surface of the non-woven fabric, so that cracks in the surface of the non-woven fabric can be uniformly coated with the polysulfone coating, meanwhile, the redundant polysulfone coating can be scraped off, the scraped polysulfone coating can slide to the surface of the guide plate, and the non-woven fabric is uniformly coated with the polysulfone coating. One end of the guide plate can scrape away polysulfone paint adhered to the surface of the coating roller, and when the closing plate moves to the surface of the guide plate, the closing plate is pushed to rotate so as to expose the storage groove, so that the outer wall of the storage groove can scrape the surface of the guide plate, and the polysulfone paint on the surface of the guide plate is scraped into the storage groove.

Description

Technical Field

[0001] The invention belongs to the technical field of ultrafiltration membrane slit coating devices, in particular to an automated ultrafiltration membrane slit coating device. Background Art

[0002] Ultrafiltration membrane is an artificial permeable membrane used in the ultrafiltration process, usually made of polymer materials such as cellulose acetate, cellulose acetate esters, polyethylene, polysulfone and polyamide. Generally, various types of membrane components such as tubular, plate, roll, capillary, etc. are pre-made, and then multiple components are assembled together for use to increase the filtration area and facilitate maintenance. Existing ultrafiltration membranes use non-woven fabric supports to filter water, but because the non-woven fabric supports have not been processed, the wettability and permeability of the non-woven fabric supports are poor.

[0003] After searching, the patent with publication number CN218590989U discloses an ultrafiltration membrane slit coating device, which uses a corona generating device inside the slit coating frame, a combination of corona and ultraviolet light to modify the non-woven fabric support, effectively improving the wettability and permeability of the non-woven fabric support, and thus improving the uniformity and firmness of the combination of the non-woven fabric support and the coating material. However, the ultrafiltration membrane slit coating device cannot evenly apply the polysulfone coating to the non-woven surface, resulting in uneven thickness of the non-woven fabric after coating, thereby affecting the working efficiency of the non-woven fabric support. Summary of the invention

[0004] The object of the present invention is to provide an automated ultrafiltration membrane slit coating device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automated ultrafiltration membrane slit coating device, comprising a frame and a control box installed on one side surface of the frame and a plurality of guide rollers arranged between the control box and the frame, a receiving mother roll is installed on the outer wall of one end of the frame, and one end of the receiving mother roll is connected to the control box, a loading assembly is arranged on the side direction of the frame away from the receiving mother roll, a coating assembly is arranged on the one side surface of the control box at a position between the receiving mother roll and the loading assembly, and two groups of coating assemblies are arranged, the coating assembly comprises a coating roller and an injection shaft arranged inside the coating roller, the outer wall of the injection shaft is rotatably connected to the inner wall of the coating roller, and the end of the injection shaft away from the control box extends out of the surface of the coating roller and is fixedly connected to the frame, the end of the injection shaft extending out of the coating roller is connected to a loading pipe, and a plurality of discharge holes are arranged in the circumferential direction of the outer edge of the coating roller.

[0006] Furthermore, the loading assembly includes a transmission disc, which is rotatably connected to the inside of the frame, and a connecting plate is fixedly connected to the side of the transmission disc close to the receiving mother roll, and one end of the connecting plate extends out of the surface of the frame, and the end of the connecting plate extending out of the frame is rotatably connected to a connecting roller made of glass, and a plurality of groups of ultraviolet lamps are axially arranged inside the connecting roller, and a corona generating device is installed inside the connecting roller.

[0007] The top of the frame is provided with a limiter, and the top of the frame is provided with a limiter, and the surface of the limiter is rotatably connected to the bottom of the frame, and a connecting rod is slidably connected to the inner wall of the frame, and the connecting rod is slidably connected to the inner wall of the frame.

[0008] Furthermore, the coating assembly includes an injection hole axially arranged along the inner wall of the injection shaft and a plurality of feeding holes arranged along the circumferential direction inside the coating roller, a injection groove adapted to the injection hole is arranged on one side of the injection shaft close to the bottom end of the frame, and a plurality of storage grooves adapted to the feeding holes are arranged on the inner circumferential direction of the coating roller, a second return spring is fixedly connected to the inner wall of the storage groove, and a limiting block is fixedly connected to one end of the second return spring close to the storage groove.

[0009] Furthermore, the coating assembly also includes a pressing roller installed on the surface of the control box and adapted to the coating roller, and a plurality of groups of grooves arranged in a circumferential direction on the outer surface of the coating roller, a first return spring is fixedly connected to the inner wall of the groove, a piston plate adapted to the groove is arranged at the top of the first return spring, a plurality of ventilation grooves adapted to the grooves are arranged on the inner wall of the coating roller, and one end of the ventilation groove is connected to the material storage groove, a push rod is slidably connected to the inner wall of one end of the ventilation groove close to the material storage groove, a push rod is fixedly connected to one end of the push rod close to the material storage groove, an extrusion plate adapted to the material storage groove is arranged on the surface of the top block, and the extrusion plate is slidably connected to the top block, the surface of the extrusion plate is provided with a through hole adapted to the limit block, and a discharge hole adapted to the material storage groove is arranged on the outer surface of the coating roller along the circumferential direction.

[0010] Furthermore, the coating assembly also includes a conveying roller installed on the surface of the control box and adapted to the coating roller, and a closing plate arranged on the surface of the coating roller and adapted to the material storage tank, and the closing plate is rotatably connected to the coating roller, a first torsion spring adapted to the closing plate is arranged on the inner wall of the material storage tank, a connecting shaft is fixedly connected to the surface of the control box, a scraper adapted to the conveying roller is arranged on the outer wall of the connecting shaft, a guide plate adapted to the closing plate is arranged on the outer wall of the connecting shaft, an elastic cloth strip is arranged between the guide plate and the scraper in the direction close to the coating roller, and a second torsion spring adapted to the guide plate is arranged on the inner wall of the connecting shaft.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] The present invention can coat both sides of the non-woven fabric through the cooperation of the guide roller and the coating assembly, and at the same time, the pressing roller squeezes the piston plate, which will push the top block and the squeezing plate to extrude the polysulfone coating inside the storage tank onto the surface of the coating roller, and coat the surface of the non-woven fabric. When the non-woven fabric is conveyed to the surface of the conveying roller, the scraper will scrape the polysulfone coating on the surface of the non-woven fabric, so that the polysulfone coating can be evenly coated in the gap on the surface of the non-woven fabric, and at the same time, the excess polysulfone coating can be scraped off, and the scraped polysulfone coating will slide along the surface of the scraper and through the elastic cloth strip to the surface of the guide plate, and at the same time, one end of the guide plate can scrape off the polysulfone coating adhered to the surface of the coating roller, and when the closing plate moves to the surface of the guide plate, it will push the closing plate to rotate to expose the storage tank, and then the coating roller continues to rotate, so that the outer wall of the storage tank can scrape the surface of the guide plate, and scrape the polysulfone coating on the surface of the guide plate into the interior of the storage tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0014] Figure 2 It is a schematic diagram of the working state of the present invention;

[0015] Figure 3 It is a schematic diagram of the three-dimensional structure of the transmission disc and the connecting plate cooperating with each other in the present invention;

[0016] Figure 4 It is a schematic diagram of the three-dimensional structure of the ultraviolet lamp and the corona generating device of the present invention cooperating with each other;

[0017] Figure 5 It is a schematic diagram of the three-dimensional structure of the coating roller and the injection shaft cooperating with each other in the present invention;

[0018] Figure 6 It is a schematic diagram of the three-dimensional structure of the top block and the extrusion plate cooperating with each other in the present invention;

[0019] Figure 7It is a schematic diagram of the three-dimensional structure of the second return spring and the limit block cooperating with each other in the present invention;

[0020] Figure 8 It is a schematic diagram of the three-dimensional structure of the closing plate and the guide plate cooperating with each other in the present invention;

[0021] Fig. 9 It is a schematic diagram of the three-dimensional structure of the guide plate and the second torsion spring cooperating with each other in the present invention;

[0022] Fig.10 For the present invention Figure 3 A schematic diagram of the enlarged structure at A in the middle;

[0023] Fig.11 For the present invention Figure 3 Schematic diagram of the enlarged structure at point B in the middle.

[0024] In the figure: 1, frame; 2, control box; 3, feeding assembly; 301, non-woven fabric mother roll; 302, positioning ring; 303, pressing block; 304, limiting groove; 305, positioning column; 306, connecting block; 307, slide groove; 308, connecting rod; 309, connecting spring; 310, connecting column; 311, tooth block; 312, driving disc; 313, tooth groove; 314, connecting plate; 315, connecting roller; 316, ultraviolet lamp; 317, corona generating device; 4, coating assembly; 401, coating roller; 402, pressing roller; 403, conveying roller; 404, injection shaft; 405. Injection hole; 406. Injection slot; 407. Feeding pipe; 408. Feeding hole; 409. Storage slot; 410. Groove; 411. First return spring; 412. Piston plate; 413. Vent slot; 414. Ejector rod; 415. Ejector block; 416. Extrusion plate; 417. Through hole; 418. Second return spring; 419. Limiting block; 420. Closing plate; 421. First torsion spring; 422. Discharge hole; 423. Connecting shaft; 424. Scraper; 425. Guide plate; 426. Elastic cloth strip; 427. Second torsion spring; 5. Guide roller; 6. Receiving mother roll. DETAILED DESCRIPTION

[0025] 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.

[0026] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] Embodiment 1

[0028] See also Figure 1-Figure 11 The present invention provides a technical solution: an automated ultrafiltration membrane slit coating device, comprising a frame 1 and a control box 2 installed on one side surface of the frame 1 and a plurality of guide rollers 5 arranged between the control box 2 and the frame 1, a receiving mother roll 6 is installed on the outer wall of one end of the frame 1, and one end of the receiving mother roll 6 is connected to the control box 2, a feeding component 3 is arranged on the side of the frame 1 away from the receiving mother roll 6, and a coating component 5 is arranged on the surface of one side of the control box 2 between the receiving mother roll 6 and the feeding component 3 Component 4, and the coating component 4 is provided with two groups, the coating component 4 includes a coating roller 401 and an injection shaft 404 arranged inside the coating roller 401, the outer wall of the injection shaft 404 is rotatably connected to the inner wall of the coating roller 401, and the end of the injection shaft 404 away from the control box 2 extends out of the surface of the coating roller 401 and is fixedly connected to the frame 1, the end of the injection shaft 404 extending out of the coating roller 401 is connected to the feeding pipe 407, and a plurality of discharge holes 422 are provided in the circumferential direction of the outer edge of the coating roller 401.

[0029] When in use, first fix the non-woven fabric mother roll 301 on one end of the frame 1, then stretch one end of the non-woven fabric to the surface of the first group of coating rollers 401, so that one side of the non-woven fabric is in contact with the surface of the coating roller 401, continue to pull one end of the non-woven fabric so that it is in contact with the surface of the multiple groups of guide rollers 5 and transported to the surface of the second group of coating rollers 401, change the conveying direction of the non-woven fabric by the multiple groups of guide rollers 5, so that the other side of the non-woven fabric is in contact with the surface of the coating roller 401, and fix one end of the non-woven fabric on the surface of the receiving mother roll 6, then inject the polysulfone coating into the interior of the injection shaft 404 through the feeding pipe 407, so that the polysulfone coating is filled into the interior of the coating roller 401 and flows out to the surface of the coating roller 401 through the discharge hole 422, and at the same time, the control box 2 drives the coating roller 401 and the receiving mother roll 6 to rotate, so that the receiving mother roll 6 winds up the non-woven fabric, and when the non-woven fabric passes through the surfaces of the two groups of coating rollers 401, the coating of the non-woven fabric can be achieved.

[0030] See also Figure 3 and Figure 4 The loading assembly 3 includes a transmission disc 312, which is rotatably connected to the inside of the frame 1. A connecting plate 314 is fixedly connected to the side of the transmission disc 312 close to the receiving mother roll 6, and one end of the connecting plate 314 extends out of the surface of the frame 1. The end of the connecting plate 314 extending out of the frame 1 is rotatably connected to a connecting roller 315 made of glass. A plurality of groups of ultraviolet lamps 316 are axially arranged inside the connecting roller 315, and a corona generating device 317 is installed inside the connecting roller 315.

[0031] When in use, after one end of the non-woven fabric is fixed to one end of the material receiving mother roll 6, the non-woven fabric is wound up by the material receiving mother roll 6 so that the non-woven fabric mother roll 301 rotates on the surface of the frame 1 and releases the limit on the transmission disc 312. At this time, the connecting roller 315 drives the transmission disc 312 to rotate through the connecting plate 314 under the action of gravity, so that the connecting roller 315 presses the surface of the non-woven fabric, thereby ensuring the tension of the non-woven fabric during the coating process. At the same time, the connecting roller 315 is made of glass, and an ultraviolet lamp 316 is arranged inside the connecting roller 315. The ultraviolet light emitted by the ultraviolet lamp 316 when working can pass through the connecting roller 315 and irradiate the side wall of the non-woven fabric, and cooperate with the corona generating device 317 inside the connecting roller 315 to modify the non-woven fabric by combining corona and ultraviolet light, thereby effectively improving the hydrophilicity and permeability of the non-woven fabric, thereby improving the uniformity and firmness of the combination of the non-woven fabric and the coating material.

[0032] In order to ensure that the rotation of the nonwoven fabric mother roll 301 can release the limit of the driving disc 312, please refer to Figure 3 , Fig.10 and Fig.11 The feeding assembly 3 also includes a non-woven fabric mother roll 301 arranged at the top of the frame 1, and the two ends of the non-woven fabric mother roll 301 are fixedly connected with positioning rings 302, and the outer surface of the positioning ring 302 is fixedly connected with a pressing block 303. The top of the frame 1 is provided with a limiting groove 304 adapted to the positioning ring 302, and the top of the frame 1 is fixedly connected with a positioning column 305. The surface of the positioning column 305 is rotatably connected with a connecting block 306 adapted to the pressing block 303, and the end of the connecting block 306 away from the pressing block 303 is provided with a slide groove 307, and the slide groove 304 is provided with a positioning column 305. A connecting rod 308 is slidably connected to the inner wall of 07, and the connecting rod 308 can only slide in the direction perpendicular to the transmission disc 312 through the rotation cooperation between the connecting block 306 and the pressing block 303. The end of the connecting rod 308 away from the slide groove 307 is fixedly connected to a connecting spring 309, and one end of the connecting spring 309 is fixedly connected to a connecting column 310, and the end of the connecting column 310 close to the transmission disc 312 is fixedly connected to a tooth block 311, and a plurality of groups of tooth grooves 313 adapted to the tooth blocks 311 are arranged on the outer circumferential surface of the transmission disc 312 in the circumferential direction.

[0033] During use, when the non-woven fabric mother roll 301 is installed on the top of the frame 1, the positioning rings 302 at both ends of the non-woven fabric mother roll 301 are inserted into the inside of the limiting groove 304, and then the positioning rings 302 are driven to rotate inside the limiting groove 304 through the rotation of the non-woven fabric mother roll 301, so that the pressing block 303 presses one end of the connecting block 306. When the connecting block 306 is pressed, it will rotate around the positioning column 305 as the center, so that one end of the slide groove 307 will tilt upward. At this time, one end of the connecting rod 308 will slide inside the slide groove 307 and move upward. When the connecting rod 308 moves upward, the connecting spring 309 pulls the connecting rod 308 to move upward. The column 310 moves upward, separating the tooth block 311 from the tooth groove 313, thereby releasing the limit on the transmission disc 312; when it is necessary to lift the connecting roller 315 upward, pull the connecting roller 315, and drive the transmission disc 312 to rotate through the connecting plate 314, so that the tooth groove 313 squeezes the tooth block 311, thereby pushing the tooth block 311 and the connecting column 310 to move upward and squeeze the connecting spring 309. When the connecting roller 315 is lifted to a certain angle, the connecting spring 309 is forced to push the connecting column 310 and the tooth block 311 downward, so that the tooth block 311 engages with the tooth groove 313 and limits the transmission disc 312.

[0034] See also Figure 5 , Figure 7 and Figure 8 The coating assembly 4 includes an injection hole 405 axially arranged along the inner wall of the injection shaft 404 and a plurality of feeding holes 408 arranged along the circumferential direction inside the coating roller 401. A filling groove 406 adapted to the injection hole 405 is arranged on one side of the injection shaft 404 close to the bottom end of the frame 1. A plurality of storage grooves 409 adapted to the feeding holes 408 are arranged on the inner circumferential surface of the coating roller 401 along the circumferential direction. A second return spring 418 is fixedly connected to the inner wall of the storage groove 409. The second return spring 418 is fixedly connected to a limiting block 419 at one end close to the storage groove 409.

[0035] When in use, the polysulfone coating is injected into the interior of the injection hole 405 through the feeding tube 407, and the polysulfone coating will flow into the interior of the injection groove 406. When the feeding hole 408 rotates to the bottom of the injection groove 406 with the coating roller 401, the polysulfone coating will flow into the interior of the feeding hole 408. The pressure of the polysulfone coating inside the injection groove 406 will push the limit block 419 upward and pull the second return spring 418 to extend outward, so that the limit block 419 is separated from the through hole 417, so that the polysulfone coating can be injected into the interior of the storage groove 409 through the feeding hole 408. After that, the coating roller 401 continues to rotate to make the feeding hole 408 separate from the bottom of the injection groove 406. At this time, the feeding shaft 404 will limit the feeding hole 408 to prevent the polysulfone coating from entering the interior of the feeding hole 408. The force of the second return spring 418 pulls the limit block 419 to reset and blocks the through hole 417.

[0036] In order to squeeze the polysulfone coating inside the storage tank 409 from the surface of the coating roller 401, refer to Figure 5-Figure 7 The coating assembly 4 also includes a pressing roller 402 mounted on the surface of the control box 2 and adapted to the coating roller 401, and a plurality of grooves 410 arranged in a circumferential direction on the outer surface of the coating roller 401, a first return spring 411 is fixedly connected to the inner wall of the groove 410, a piston plate 412 adapted to the groove 410 is arranged on the top of the first return spring 411, and a plurality of ventilation grooves 413 adapted to the grooves 410 are arranged on the inner wall of the coating roller 401, and one end of the ventilation groove 413 is connected to the storage tank 409. A push rod 414 is slidably connected to the inner wall of one end of the ventilation groove 413 near the material storage groove 409, and a push block 415 is fixedly connected to one end of the push rod 414 near the material storage groove 409. The surface of the push block 415 is provided with an extrusion plate 416 adapted to the material storage groove 409, and the extrusion plate 416 is slidably connected to the top block 415, and the surface of the extrusion plate 416 is provided with a through hole 417 adapted to the limit block 419, and the outer peripheral surface of the coating roller 401 is provided with a discharge hole 422 adapted to the material storage groove 409 along the circumferential direction.

[0037] When in use, the control box 2 drives the coating roller 401 to rotate, so that the piston plate 412 moves to the surface of the pressing roller 402. At this time, the coating roller 401 continues to rotate, so that the pressing roller 402 squeezes the piston plate 412, thereby pushing the piston plate 412 to slide into the inside of the groove 410 and squeeze the first return spring 411. When the piston plate 412 slides into the inside of the groove 410, it squeezes the air inside the groove 410 into the inside of the ventilation groove 413. At this time, the air inside the ventilation groove 413 will push the ejector rod 414 upward, thereby pushing the ejector block 415 to the inside of the material storage groove 409. When the top block 415 slides inside, it will push the extrusion plate 416 to move synchronously when it slides outward. At the same time, the top block 415 will slide on the surface of the extrusion plate 416, so that the top block 415 and the extrusion plate 416 always slide in contact with the inner wall of the storage tank 409, and the extrusion plate 416 will drive the limit block 419 to move synchronously through the card block when sliding, so that the limit block 419 can limit the through hole 417, ensuring that the top block 415 and the extrusion plate 416 can slide inside the storage tank 409. The polysulfone coating inside the storage tank 409 can be squeezed out through the discharge hole 422 and coated on the surface of the non-woven fabric.

[0038] In order to evenly coat the polysulfone coating on the nonwoven surface, please refer to Figure 8-Figure 9The coating assembly 4 also includes a conveying roller 403 installed on the surface of the control box 2 and adapted to the coating roller 401, and a closing plate 420 arranged on the surface of the coating roller 401 and adapted to the material storage tank 409, and the closing plate 420 is rotatably connected to the coating roller 401, and a first torsion spring 421 adapted to the closing plate 420 is arranged on the inner wall of the material storage tank 409, a connecting shaft 423 is fixedly connected to the surface of the control box 2, a scraper 424 adapted to the conveying roller 403 is arranged on the outer wall of the connecting shaft 423, a guide plate 425 adapted to the closing plate 420 is arranged on the outer wall of the connecting shaft 423, an elastic cloth strip 426 is arranged between the guide plate 425 and the scraper 424 in the direction close to the coating roller 401, and a second torsion spring 427 adapted to the guide plate 425 is arranged on the inner wall of the connecting shaft 423.

[0039] When in use, when the coated non-woven fabric passes through the surface of the conveying roller 403, the scraper 424 connected to the connecting shaft 423 will scrape the polysulfone coating on the surface of the non-woven fabric, so that the polysulfone coating can be evenly coated in the gaps on the surface of the non-woven fabric, and at the same time, the excess polysulfone coating can be scraped off, and the scraped polysulfone coating will slide along the surface of the scraper 424 and through the elastic cloth strip 426 to the surface of the guide plate 425. At the same time, as the coating roller 401 rotates, one end of the guide plate 425 can scrape off the polysulfone coating adhering to the surface of the coating roller 401, and when the closing plate 420 moves to the surface of the guide plate 425, the second torsion spring 42 The force pushes the guide plate 425 to rotate on the surface of the connecting shaft 423 and squeeze the closing plate 420, thereby pushing the closing plate 420 to rotate and squeeze the first torsion spring 421, thereby exposing the material storage groove 409. Then, the coating roller 401 continues to rotate, so that the outer wall of the material storage groove 409 can scrape the surface of the guide plate 425 and scrape the polysulfone coating on the surface of the guide plate 425 into the interior of the material storage groove 409. Finally, the coating roller 401 continues to rotate, so that the closing plate 420 is separated from the guide plate 425. At this time, the force of the first torsion spring 421 pushes the closing plate 420 to reset and re-block the material storage groove 409.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automated ultrafiltration membrane slit coating device, comprising a frame (1), a control box (2) mounted on a side surface of the frame (1), and a plurality of guide rollers (5) arranged between the control box (2) and the frame (1), a receiving mother roll (6) being mounted on an outer wall at one end of the frame (1), and one end of the receiving mother roll (6) being connected to the control box (2), characterized in that: A loading assembly (3) is arranged on one side of the frame (1) away from the receiving mother roll (6), and a coating assembly (4) is arranged on a side surface of the control box (2) between the receiving mother roll (6) and the loading assembly (3), and two groups of coating assemblies (4) are arranged, wherein the coating assembly (4) comprises a coating roller (401) and an injection shaft (404) arranged inside the coating roller (401), the outer wall of the injection shaft (404) is rotatably connected to the inner wall of the coating roller (401), and the end of the injection shaft (404) away from the control box (2) extends out of the surface of the coating roller (401) and is fixedly connected to the frame (1), the end of the injection shaft (404) extending out of the coating roller (401) is connected to a loading pipe (407), and a plurality of groups of discharge holes (422) are arranged on the outer edge of the coating roller (401) in the circumferential direction.

2. The automated ultrafiltration membrane slit coating device according to claim 1, characterized in that: The loading assembly (3) comprises a transmission disc (312), wherein the transmission disc (312) is rotatably connected to the inside of the frame (1), and a connecting plate (314) is fixedly connected to one side of the transmission disc (312) close to the receiving mother roll (6), and one end of the connecting plate (314) extends out of the surface of the frame (1), and one end of the connecting plate (314) extending out of the frame (1) is rotatably connected to a connecting roller (315) made of glass, and a plurality of groups of ultraviolet lamps (316) are axially arranged inside the connecting roller (315), and a corona generating device (317) is installed inside the connecting roller (315).

3. The automated ultrafiltration membrane slit coating device according to claim 2, characterized in that: The feeding assembly (3) further comprises a non-woven fabric mother roll (301) arranged at the top of the frame (1), the two ends of the non-woven fabric mother roll (301) are fixedly connected with positioning rings (302), the outer surface of the positioning ring (302) is fixedly connected with a pressing block (303), the top of the frame (1) is provided with a limiting groove (304) adapted for the positioning ring (302), the top of the frame (1) is fixedly connected with a positioning column (305), the surface of the positioning column (305) is rotatably connected with a connecting block (306) adapted for the pressing block (303), and the end of the connecting block (306) away from the pressing block (303) is provided with a sliding groove (307), A connecting rod (308) is slidably connected to the inner wall of the slide groove (307). The connecting rod (308) can only slide in a direction perpendicular to the transmission disc (312) through the rotational cooperation between the connecting block (306) and the pressing block (303). The end of the connecting rod (308) away from the slide groove (307) is fixedly connected to a connecting spring (309). One end of the connecting spring (309) is fixedly connected to a connecting column (310). The end of the connecting column (310) close to the transmission disc (312) is fixedly connected to a tooth block (311). The outer circumferential surface of the transmission disc (312) is provided with a plurality of tooth grooves (313) adapted to the tooth blocks (311) in a circumferential direction.

4. The automated ultrafiltration membrane slit coating device according to claim 1, characterized in that: The coating assembly (4) comprises an injection hole (405) axially arranged along the inner wall of the injection shaft (404) and a plurality of groups of feeding holes (408) arranged along the circumferential direction inside the coating roller (401); an injection groove (406) adapted to the injection hole (405) is arranged on one side of the injection shaft (404) close to the bottom end of the frame (1); a plurality of groups of material storage grooves (409) adapted to the material loading holes (408) are arranged on the inner circumferential surface of the coating roller (401) along the circumferential direction; a second return spring (418) is fixedly connected to the inner wall of the material storage groove (409); and a limiting block (419) is fixedly connected to one end of the second return spring (418) close to the material storage groove (409).

5. The automated ultrafiltration membrane slit coating device according to claim 4, characterized in that: The coating assembly (4) further comprises a pressing roller (402) mounted on the surface of the control box (2) and adapted to the coating roller (401), and a plurality of groups of grooves (410) arranged in a circumferential direction on the outer surface of the coating roller (401), a first return spring (411) being fixedly connected to the inner wall of the groove (410), a piston plate (412) adapted to the groove (410) being arranged at the top end of the first return spring (411), a ventilation groove (413) adapted to the plurality of groups of grooves (410) being arranged on the inner wall of the coating roller (401), and one end of the ventilation groove (413) being connected to the material storage tank (409), A push rod (414) is slidably connected to the inner wall of one end of the ventilation groove (413) close to the material storage groove (409), and a push block (415) is fixedly connected to one end of the push rod (414) close to the material storage groove (409). An extrusion plate (416) adapted to the material storage groove (409) is arranged on the surface of the push block (415), and the extrusion plate (416) is slidably connected to the push block (415). A through hole (417) adapted to the limit block (419) is arranged on the surface of the extrusion plate (416), and a discharge hole (422) adapted to the material storage groove (409) is arranged on the outer circumferential surface of the coating roller (401) along the circumferential direction.

6. The automated ultrafiltration membrane slit coating device according to claim 4, characterized in that: The coating assembly (4) further comprises a conveying roller (403) mounted on the surface of the control box (2) and adapted to the coating roller (401), and a closing plate (420) arranged on the surface of the coating roller (401) and adapted to the material storage tank (409), wherein the closing plate (420) is rotatably connected to the coating roller (401), a first torsion spring (421) adapted to the closing plate (420) is arranged on the inner wall of the material storage tank (409), and a connecting shaft (420) is fixedly connected to the surface of the control box (2). 23), a scraper (424) adapted to the conveying roller (403) is arranged on the outer wall of the connecting shaft (423), a guide plate (425) adapted to the closing plate (420) is arranged on the outer wall of the connecting shaft (423), an elastic cloth strip (426) is arranged between the guide plate (425) and the scraper (424) on the side close to the coating roller (401), and a second torsion spring (427) adapted to the guide plate (425) is arranged on the inner wall of the connecting shaft (423).

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