Coating machine for lithium battery diaphragm production

By designing a cleaning mechanism and an air-drying mechanism on the coating machine for lithium battery separator production, the damage caused by the convexity of impurities during the drying and winding process is solved, and efficient cleaning and drying of the separator is achieved, and product quality is improved.

CN222789920UActive Publication Date: 2025-04-25HUIZHOU LISIEN TECH CO LTD
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Patent Information

Application Number
CN202421171117.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-27
Publication Date
2025-04-25
Estimated Expiration
2034-05-27

AI Technical Summary

Technical Problem

During the drying and winding process of lithium battery separators, the attached slurry particles and other debris are prone to protrude and be squeezed, causing the diaphragm to be dented or damaged, affecting product quality.

Method used

A coating machine for the production of lithium battery separators was designed, equipped with a cleaning mechanism and an air-drying mechanism. The cleaning mechanism cleans the impurities on the diaphragm through a scraper to prevent damage; the air-drying mechanism uses a hot air fan to dry the diaphragm and keeps the filter screen ventilated through a filter and a soft brush.

Benefits of technology

It effectively removes impurities on the surface of the diaphragm, prevents dents and damage, while maintaining the overall quality of the diaphragm, and ensures continuous ventilation of the equipment by cleaning the filter.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a coating machine for lithium battery diaphragm production, which relates to the technical field of coating machines, and comprises a coating machine body and a shell, a cleaning mechanism is arranged on the inner side of the coating machine body, an air drying mechanism is arranged on the inner side of the shell, the cleaning mechanism comprises a fixed block fixed on the inner wall of the coating machine body, and the fixed block is fixed on the inner wall of the coating machine body. A sliding groove is formed in the surface of the fixing block, a sliding block is slidably connected to the inner side of the sliding groove formed in the surface of the fixing block, and a spring is fixed to the side face of the sliding block. According to the coating machine for lithium battery diaphragm production, through the arranged cleaning mechanism, fine impurities on a diaphragm can be conveniently cleaned through a scraper blade, the situation that the surface of the diaphragm is damaged when the diaphragm is wound due to the fact that the impurities on the diaphragm protrude out is prevented, and meanwhile through the action of a sliding block and a spring, when the diaphragm is stored by a winding roller, the diaphragm is prevented from being damaged. And the scraping plate can be adjusted according to the rolling thickness of the diaphragm, so that the scraping plate is prevented from being damaged when the surface of the diaphragm is cleaned.
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Description

Technical Field

[0001] The utility model relates to the technical field of coating machines, in particular to a coating machine for producing lithium battery diaphragms. Background Art

[0002] A coating machine is a device used to coat or spray various coatings, paints, glues and other materials on the surface of an object. It is mainly used in the field of industrial production and can evenly coat coatings on different types of substrates such as paper, plastic film, metal sheet, wood, etc. to achieve the purpose of beauty, protection, functionality, etc.

[0003] When the lithium battery diaphragm is dried and rolled up, slurry particles and other debris will be attached to the diaphragm. If it is rolled up directly, the slurry particles attached to the diaphragm will protrude from the diaphragm roll and be squeezed layer by layer, causing dents or even damage to the diaphragm, affecting product quality. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a coating machine for producing lithium battery diaphragms, which solves the problems raised in the above-mentioned background technology.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: a coating machine for lithium battery diaphragm production, including a coating machine body and a shell, a cleaning mechanism is arranged on the inner side of the coating machine body, and a drying mechanism is arranged on the inner side of the shell, and the cleaning mechanism includes, through the provided cleaning mechanism, a scraper can effectively clean the impurities on the diaphragm to prevent the impurities on the diaphragm from protruding and damaging the surface of the diaphragm when winding.

[0008] A fixed block, wherein the inner wall of the coating machine body is fixed with a fixed block, a sliding groove is provided on the surface of the fixed block, and a sliding block is slidably connected to the inner side of the sliding groove provided on the surface of the fixed block;

[0009] A spring, wherein a spring is fixed on the side of the slider, and an end of the spring away from the slider is fixed on the side of a slide groove opened on the surface of the fixed block;

[0010] A strip block is fixed on the side of the slider, a scraper is fixed on the side of the strip block, and a collecting box is fixed on the inner wall of the coater body. Through the provided collecting box, when the scraper cleans the impurities on the surface of the diaphragm, the impurities fall into the inner side of the collecting box for collection, thereby preventing the impurities from falling into the inner side of the coater body.

[0011] Preferably, the air-drying mechanism includes a fixing frame, the fixing frame is fixed to the inner wall of the shell, and a cross is fixed to the inner wall of the fixing frame. By setting the cross, the air dryer can be conveniently supported without preventing the filter from being ventilated.

[0012] Preferably, a winding roller is rotatably mounted on the inner wall of the coating machine body, and the partition can be conveniently wound up by the winding roller, and the surface of the membrane can be conveniently cleaned by a cleaning mechanism while winding up.

[0013] Preferably, a unwinding roller is rotatably mounted on the inner wall of the coating machine body.

[0014] Preferably, a hot air blower is rotatably installed at the bottom of the cross, a rotating rod is fixed on the top of the hot air blower, the rotating rod passes through the cross, and a soft brush is fixed on the end of the rotating rod away from the hot air blower. The soft brush can prevent the filter from being blocked by external debris for a long time, and the filter can be cleaned to keep it ventilated.

[0015] Preferably, an air outlet is provided at the top of the shell, and a filter is fixed inside the air outlet provided at the top of the shell.

[0016] (III) Beneficial effects

[0017] The utility model provides a coating machine for producing lithium battery diaphragms. It has the following beneficial effects:

[0018] (1) The coating machine for producing lithium battery diaphragms can easily clean fine impurities on the diaphragm by means of a cleaning mechanism, using a scraper to prevent the impurities on the diaphragm from protruding and damaging the surface of the diaphragm when it is rolled up. At the same time, through the action of the slider and the spring, when the winding roller is winding the diaphragm, the scraper can be adjusted according to the thickness of the wound diaphragm, preventing the scraper from causing damage when cleaning the surface of the diaphragm.

[0019] (2) The coating machine for producing lithium battery diaphragms uses a hot air blower to dry the diaphragms that need to be dried through the air drying mechanism. During the drying process, the filter can intercept the particles inhaled from the outside air. The filter can be cleaned by driving a soft brush to prevent the filter from being blocked over time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the front structure of the utility model;

[0021] Figure 2 It is a right side structural schematic diagram of the utility model;

[0022] Figure 3 It is a schematic diagram of the local structure of the utility model;

[0023] Figure 4 It is a schematic diagram of the cross-sectional structure of the shell of the utility model.

[0024] In the figure: 1. coating machine body; 2. cleaning mechanism; 3. air drying mechanism; 4. shell; 5. winding roller; 6. unwinding roller; 201. fixed block; 202. slider; 203. spring; 204. strip block; 205. scraper; 206. collecting box; 301. fixed frame; 302. cross; 303. hot air blower; 304. rotating rod; 305. filter screen; 306. soft brush. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-4 The utility model provides a technical solution: a coating machine for lithium battery diaphragm production, including a coating machine body 1 and a shell 4, a cleaning mechanism 2 is arranged on the inner side of the coating machine body 1, and an air drying mechanism 3 is arranged on the inner side of the shell 4, and the cleaning mechanism 2 includes: a fixed block 201, a slider 202, a spring 203, a strip block 204, a scraper 205, and a collection box 206.

[0027] A fixed block 201 is fixed to the inner wall of the coater body 1, and a slide groove is provided on the surface of the fixed block 201. A slider 202 is slidably connected to the inner side of the slide groove provided on the surface of the fixed block 201, and a spring 203 is fixed to the side of the slider 202. The end of the spring 203 away from the slider 202 is fixed to the side of the slide groove provided on the surface of the fixed block 201. When the winding roller 5 is winding the diaphragm, the angle of the scraper 205 can be conveniently adjusted through the slider 202 and the spring 203. A strip block 204 is fixed to the side of the slider 202, and a scraper 205 is fixed to the side of the strip block 204. A collecting box 206 is fixed to the inner wall of the coater body 1.

[0028] The air-drying mechanism 3 comprises a fixing frame 301 . The fixing frame 301 is fixed to the inner wall of the shell 4 . A cross 302 is fixed to the inner wall of the fixing frame 301 .

[0029] A winding roller 5 is rotatably installed on the inner wall of the coating machine body 1. When the winding roller 5 winds up the diaphragm, the scraper 205 can remove impurities on the surface of the diaphragm to prevent the slurry particles on the diaphragm from protruding out of the diaphragm roll and being squeezed layer by layer to cause damage.

[0030] An unwinding roller 6 is rotatably mounted on the inner wall of the coating machine body 1 .

[0031] A hot air blower 303 is rotatably installed at the bottom of the cross 302, and a rotating rod 304 is fixed on the top of the hot air blower 303. The rotating rod 304 runs through the cross 302, and a soft brush 306 is fixed on the end of the rotating rod 304 away from the hot air blower 303. When the hot air blower 303 dries the diaphragm, it can effectively filter out external impurities through the filter net 305 to prevent external impurities from entering the inner side of the coating machine body 1, so as to prevent the subsequent use of the diaphragm from being affected by external factors during drying.

[0032] An air outlet is provided at the top of the shell 4 , and a filter 305 is fixed inside the air outlet provided at the top of the shell 4 .

[0033] Working principle: when the diaphragm is rolled up by the winding roller 5, the fine impurities on the surface of the diaphragm are cleaned by the scraper 205 to prevent the slurry particles on the diaphragm from protruding from the diaphragm roll and being squeezed layer by layer, causing dents or even damage to the diaphragm. When the winding roller 5 is rolling up the diaphragm, the scraper 205 can be adjusted in angle by the slider 202 and the spring 203 to prevent the diaphragm from being damaged by the scraper 205 when the winding roller 5 is rolling up the diaphragm due to the inability to adjust the angle. During cleaning, impurities will fall into the inside of the collection box 206 for easy collection. At the same time, when the diaphragm is air-dried by the hot air blower 303, the filter 305 can be used to effectively filter out external impurities to prevent the diaphragm from being damaged by external factors during drying, thereby affecting subsequent use. The rotating rod 304 fixed on the top of the hot air blower 303 drives the soft brush 306 to easily clean the filter 305, so that the filter 305 can always remain in a smooth state.

[0034] 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 coating machine for producing lithium battery separators, comprising a coating machine body (1) and a housing (4), characterized in that: A cleaning mechanism (2) is arranged on the inner side of the coating machine body (1), and an air drying mechanism (3) is arranged on the inner side of the shell (4). The cleaning mechanism (2) comprises: A fixed block (201), the inner wall of the coating machine body (1) is fixed with the fixed block (201), a sliding groove is provided on the surface of the fixed block (201), and a sliding block (202) is slidably connected to the inner side of the sliding groove provided on the surface of the fixed block (201); A spring (203), wherein the side of the slider (202) is fixed with the spring (203), and one end of the spring (203) away from the slider (202) is fixed to the side of a slide groove provided on the surface of the fixed block (201); A strip block (204), the side of the slider (202) is fixed with the strip block (204), the side of the strip block (204) is fixed with a scraper (205), and the inner wall of the coating machine body (1) is fixed with a collection box (206).

2. A coating machine for producing lithium battery separators according to claim 1, characterized in that: The air-drying mechanism (3) comprises a fixing frame (301), the fixing frame (301) is fixed on the inner wall of the housing (4), and a cross (302) is fixed on the inner wall of the fixing frame (301).

3. A coating machine for producing lithium battery separators according to claim 1, characterized in that: A winding roller (5) is rotatably mounted on the inner wall of the coating machine body (1).

4. A coating machine for producing lithium battery separators according to claim 1, characterized in that: An unwinding roller (6) is rotatably mounted on the inner wall of the coating machine body (1).

5. A coating machine for producing lithium battery separators according to claim 2, characterized in that: A hot air blower (303) is rotatably mounted at the bottom of the cross (302), a rotating rod (304) is fixed at the top of the hot air blower (303), the rotating rod (304) passes through the cross (302), and a soft brush (306) is fixed at one end of the rotating rod (304) away from the hot air blower (303).

6. A coating machine for producing lithium battery separators according to claim 1, characterized in that: An air outlet is provided at the top of the shell (4), and a filter screen (305) is fixed inside the air outlet provided at the top of the shell (4).

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