Extraction and liquid scraping device for lithium battery diaphragm

Abstract

The utility model relates to the field of lithium batteries, in particular to an extraction liquid scraping device for a lithium battery diaphragm. The utility model provides an extracting and liquid scraping device for a lithium battery diaphragm. The extracting and liquid scraping device comprises a conveying roller, an extracting roller, a mounting frame, a liquid scraping roller, a first motor and the like, a conveying roller is rotationally arranged in the extraction tank, an extraction roller is rotationally mounted in the extraction tank, mounting frames are symmetrically mounted on the extraction tank in a sliding manner, liquid scraping rollers are symmetrically and rotationally arranged in the two mounting frames, and a first motor is mounted on the side surface of each mounting frame. After a lithium battery diaphragm passes through the extraction roller, the lithium battery diaphragm adhered with an extraction liquid passes through the two liquid scraping rollers, the first motor drives the liquid scraping rollers to rotate, the liquid scraping rollers scrape the adhered extraction liquid, the extraction liquid flows onto the filter cloth and passes through the filter cloth, solid impurities in the extraction liquid are removed through the filter cloth, and then the extraction liquid passes through the activated carbon plate, so that the extraction liquid is purified. And the activated carbon plate is used for removing other impurities in the extract liquor, so that the effect of cleaning the scraped extract liquor is achieved.

Description

Technical Field

[0001] The utility model relates to the field of lithium batteries, in particular to an extraction and scraping device for lithium battery diaphragms. Background Art

[0002] Extraction is one of the essential processes in the production of lithium battery separators. In order to enhance the use effect of lithium battery separators, after extraction, the separators coming out of the extraction tank will carry a lot of extract liquid. For the later effect, the extract liquid on the separator needs to be scraped off before entering the subsequent process.

[0003] The Chinese utility model patent with patent publication number CN206947424U discloses an extraction and scraping device for lithium battery diaphragms, including a bracket and a scraping roller, the scraping roller is movably arranged on the bracket, the extraction and scraping device also includes at least one adjustment mechanism for adjusting the position of the scraping roller, the adjustment mechanism includes a screw rotatable around its own axis on the bracket, a handle for operation arranged at one end of the screw, the other end of the screw is connected to the scraping roller, and the screw and the bracket are connected by threads.

[0004] In the above patent, the scraped extract falls into the extraction tank below and continues to be used. Because impurities such as dust in the surrounding air may adhere to the extract when it sticks to the lithium battery separator and is scraped from the surface of the lithium battery separator, after scraping it off, the extract flows back into the extraction tank and is fixed on the lithium battery separator in later use, which reduces the quality of the lithium battery separator and affects the later use effect.

[0005] Therefore, in order to solve the above problems, it is urgent to design an extraction and scraping device for lithium battery separators. Utility Model Content

[0006] In order to overcome the disadvantage that impurities such as dust in the surrounding air may adhere to the extraction liquid, and after being scraped off, flow back into the extraction tank along with the extraction liquid, the technical problem is: to provide an extraction scraping device for lithium battery separators.

[0007] The technical solution is: an extraction and scraping device for lithium battery diaphragms, including a conveying roller, an extraction roller, a mounting frame, a scraping roller, a first motor, a gear set, a transmission assembly, a filter frame, a filter cloth and an activated carbon plate. A conveying roller is rotatably arranged in an extraction tank, an extraction roller is rotatably installed in the extraction tank, a mounting frame is symmetrically and slidingly installed on the extraction tank, scraping rollers are symmetrically and rotatably arranged in two mounting frames, a first motor is installed on the side of the mounting frame, the output shaft of the first motor is connected to a gear set through a coupling, one gear in the gear set is connected to a scraping roller, another gear in the gear set is connected to a transmission assembly, the transmission assembly is connected to another scraping roller, a filter frame is arranged in the extraction tank, a filter cloth is arranged in the filter frame, and an activated carbon plate is arranged at the bottom of the filter frame.

[0008] Furthermore, a collecting tank is installed between the two mounting frames. The collecting tanks are respectively located below the scraping rollers. A discharge port is provided at the bottom of the collecting tank, and the discharge port is located above the filter frame.

[0009] Furthermore, it also includes a second motor, a threaded rod and a guide rod. The second motor is installed on the side of the extraction tank. The threaded rod is threadedly connected to the bottom of one mounting frame. The output shaft of the second motor is connected to the threaded rod through a coupling. The guide rod is slidably installed on the bottom of another mounting frame.

[0010] Furthermore, a scraper is also included, and each collecting tank is provided with a scraper.

[0011] Furthermore, a pipeline is included, and the two collecting tanks are connected with a pipeline.

[0012] Furthermore, there is no bottom plate at the bottom of the filter frame, and the extract can flow.

[0013] The beneficial effect is: after the lithium battery diaphragm passes through the extraction roller, the lithium battery diaphragm with the extract sticky passes through two scraping rollers, the first motor drives the scraping roller to rotate, the scraping roller scrapes off the sticky extract, the extract flows onto the filter cloth, passes through the filter cloth, the filter cloth removes the solid impurities in the extract, and then passes through the activated carbon plate, the activated carbon plate removes other impurities in the extract, thereby achieving the effect of cleaning the scraped extract. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the mounting frame, scraper roller and other parts of the utility model.

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the collecting trough, scraper and other parts of the utility model.

[0017] Figure 4It is a three-dimensional structural schematic diagram of the pipeline, filter frame and other components of the utility model.

[0018] Figure 5 It is a three-dimensional structural schematic diagram of the filter cloth, activated carbon plate and other components of the utility model.

[0019] Figure 6 It is a three-dimensional structural schematic diagram of the second motor, threaded rod and other components of the utility model.

[0020] The names and serial numbers of the parts in the figure are: 1_extraction tank, 2_conveying roller, 3_extraction roller, 4_mounting frame, 5_scraping roller, 6_first motor, 7_gear set, 8_transmission assembly, 9_collecting tank, 10_scraper, 11_pipeline, 12_filter frame, 13_filter cloth, 14_activated carbon plate, 15_second motor, 16_threaded rod, 17_guide rod. DETAILED DESCRIPTION

[0021] The technical solution of the utility model is further described below in conjunction with the accompanying drawings.

[0022] Example 1

[0023] A liquid extraction and scraping device for lithium battery diaphragm, such as Figure 1-Figure 6 As shown, it includes a conveying roller 2, an extraction roller 3, a mounting frame 4, a scraping roller 5, a first motor 6, a gear set 7, a transmission assembly 8, a filter frame 12, a filter cloth 13 and an activated carbon plate 14. The conveying roller 2 is rotatably arranged on the front side of the extraction tank 1, and the extraction roller 3 is rotatably arranged in the extraction tank 1. The extraction roller 3 presses the lithium battery diaphragm into the extraction liquid so that the extraction liquid adheres to the surface of the lithium battery diaphragm. The mounting frames 4 are symmetrically slidably installed on the extraction tank 1, and the scraping rollers 5 are symmetrically rotatably arranged in the two mounting frames 4. The first motor 6 is installed on the left side of the mounting frame 4. The output shaft of the machine 6 is connected to the gear set 7 through a coupling, one gear in the gear set 7 is connected to a scraper roller 5, and the two scraper rollers 5 scrape off the excess extract on the surface of the lithium battery diaphragm. Another gear in the gear set 7 is connected to a transmission assembly 8, and the transmission assembly 8 is connected to another scraper roller 5. The first motor 6 drives the lithium battery diaphragm to move. A filter frame 12 is provided in the extraction tank 1, and a filter cloth 13 is provided in the filter frame 12. An activated carbon plate 14 is provided at the bottom of the filter frame 12. The filter cloth 13 and the activated carbon plate 14 clean the impurities in the scraped extract.

[0024] The lithium battery diaphragm passes through the extraction roller 3 from the conveying roller 2, and the extract adheres to the surface of the lithium battery diaphragm. The lithium battery diaphragm carries the extract through the two scraping rollers 5, and the first motor 6 works to drive the gear set 7 to rotate. The gear set 7 drives the scraping roller 5 connected thereto to rotate, and the transmission component 8 rotates at the same time. The transmission component 8 drives another scraping roller 5 to rotate, and the scraping roller 5 drives the lithium battery diaphragm to move. The extract is scraped off by the scraping roller 5 and falls into the collecting tank 9 below. The extract in the top collecting tank 9 flows downward through the pipeline 11 and flows into the collecting tank 9 at the bottom, and flows to the filter cloth 13 in the filter frame 12 through the discharge port, and flows downward after passing through the filter cloth 13 and flows to the activated carbon plate 14. Impurities stay on the filter cloth 13 or the activated carbon plate 14, and the clean extraction flows into the extraction tank 1.

[0025] Example 2

[0026] On the basis of Example 1, Figure 1 , Figure 4 and Figure 6 As shown, a collecting tank 9, a scraper 10, a pipeline 11, a second motor 15, a threaded rod 16 and a guide rod 17 are installed between the two mounting frames 4. The collecting tanks 9 are respectively located below the scraping roller 5. The bottom collecting tank 9 is provided with a discharge port, which is located above the filter frame 12. Scrapers 10 are arranged in the collecting tanks 9, and the scrapers 10 scrape the extract in the collecting tank 9. A pipeline 11 is connected between the two collecting tanks 9. A second motor 15 is installed on the side of the extraction tank 1. A threaded rod 16 is threadedly connected to the bottom of one mounting frame 4, and the output shaft of the second motor 15 is connected to the threaded rod 16 through a coupling. A guide rod 17 is slidably installed at the bottom of the other mounting frame 4. There is no bottom plate at the bottom of the filter frame 12, and the extract can circulate. The second motor 15 drives the threaded rod 16 to rotate, and the threaded rod 16 drives the scraping roller 5 and the lithium battery diaphragm to move.

[0027] After the lithium battery diaphragm passes through the conveying roller 2, it passes through the extraction roller 3 and the scraping roller 5. Sometimes the lithium battery diaphragm is not in close contact with the scraping roller 5. In order to better scrape off the extraction liquid, the second motor 15 works to drive the threaded rod 16 to rotate. The threaded rod 16 threadably pushes the mounting frame 4 to move, and the mounting frame 4 drives the scraping roller 5 to move, which plays a tightening role.

[0028] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An extraction and scraping device for lithium battery separators, comprising a conveying roller (2), wherein the conveying roller (2) is rotatably arranged in an extraction tank (1), characterized in that: The invention also comprises an extraction roller (3), a mounting frame (4), a scraping roller (5), a first motor (6), a gear set (7), a transmission assembly (8), a filter frame (12), a filter cloth (13) and an activated carbon plate (14). The extraction roller (3) is rotatably mounted in the extraction tank (1). The mounting frame (4) is symmetrically slidably mounted on the extraction tank (1). The scraping rollers (5) are symmetrically rotatably arranged in the two mounting frames (4). The first motor (6) is mounted on the side of the mounting frame (4). The output shaft of the first motor (6) is connected to the gear set (7) via a coupling. One gear in the gear set (7) is connected to a scraping roller (5). Another gear in the gear set (7) is connected to the transmission assembly (8). The transmission assembly (8) is connected to another scraping roller (5). The extraction tank (1) is provided with a filter frame (12). The filter cloth (13) is arranged in the filter frame (12). The activated carbon plate (14) is arranged at the bottom of the filter frame (12).

2. The extraction and scraping device for lithium battery separator according to claim 1, characterized in that: A collecting trough (9) is installed between the two mounting frames (4), and the collecting troughs (9) are respectively located below the scraping rollers (5). A discharge port is provided at the bottom of the collecting trough (9), and the discharge port is located above the filter frame (12).

3. The extraction and scraping device for lithium battery separator according to claim 2, characterized in that: The invention also comprises a second motor (15), a threaded rod (16) and a guide rod (17); the second motor (15) is installed on the side of the extraction tank (1); the threaded rod (16) is threadedly connected to the bottom of one mounting frame (4); the output shaft of the second motor (15) is connected to the threaded rod (16) via a coupling; and the guide rod (17) is slidably installed on the bottom of another mounting frame (4).

4. The extraction and scraping device for lithium battery separator according to claim 3, characterized in that: It also includes a scraper (10), and each collecting tank (9) is provided with a scraper (10).

5. The extraction and scraping device for lithium battery separator according to claim 4, characterized in that: It also includes a pipeline (11), and the pipeline (11) is connected between the two collecting tanks (9).

6. The extraction and scraping device for lithium battery separator according to claim 5, characterized in that: There is no bottom plate at the bottom of the filter frame (12), so the extract can flow.

Images