Lithium battery diaphragm edge oil removal mechanism

Abstract

The utility model discloses a lithium battery diaphragm edge oil removing mechanism, which comprises a support and a liquid scraping mechanism, the liquid scraping mechanism is arranged on the support, the liquid scraping mechanism comprises a pair of liquid scraping components which are distributed at intervals along the width direction of a diaphragm, each liquid scraping component comprises two scrapers, and the scrapers are arranged on the support. The two scrapers are arranged in a vertically staggered manner in the moving direction of the diaphragm across the diaphragm. According to the lithium battery diaphragm edge oil removal mechanism provided by the utility model, white oil remained at the edge of the lithium battery diaphragm can be removed, the influence on the traction effect on the diaphragm due to the fact that the white oil is attached to the traction roller is avoided, and the diaphragm hole blockage caused by the fact that the white oil at the edge is not completely extracted subsequently can be prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of lithium battery diaphragm preparation, specifically relates to lithium battery diaphragm edge oil removal mechanism. BACKGROUND

[0002] After the lithium battery diaphragm is manufactured, it is sent into an extraction tank for extraction through a traction system. However, before extraction, a large amount of white oil is left on the surface of the diaphragm, especially in the part close to the two side edges, and the amount of the attached white oil is more. This makes the white oil of the diaphragm edge easily adhere to the traction roller of the traction mechanism, so that the traction roller is difficult to clean at the position close to the diaphragm edge, causing the diaphragm to slip during traction, thereby affecting the traction effect. In addition, the residual white oil that is not cleaned in time will also affect the effect of the subsequent white oil removal process. SUMMARY

[0003] In view of the above technical problems, the purpose of the utility model is to provide a lithium battery diaphragm edge oil removal mechanism for automatically removing the white oil left on the lithium battery diaphragm edge during the movement of the diaphragm.

[0004] The above technical purpose of the utility model is realized by the following technical scheme:

[0005] A lithium battery diaphragm edge oil removal mechanism, comprising a support and a liquid scraping mechanism, the liquid scraping mechanism is installed on the support, the liquid scraping mechanism comprises a pair of liquid scraping assemblies distributed in the width direction of the diaphragm, each liquid scraping assembly comprises two scrapers, and the two scrapers are arranged above and below the diaphragm in the moving direction of the diaphragm.

[0006] In some embodiments, the scraper is in the shape of "L", the scraper comprises two scraping plates, and the connecting part of the two scraping plates is rounded to form a liquid scraping part for contacting the surface of the diaphragm.

[0007] In some embodiments, the distance between the two scrapers is 10-20mm.

[0008] In some embodiments, the support comprises a mounting seat and a shaft, the two ends of the shaft are installed on the support, and the two liquid scraping assemblies are installed on the shaft.

[0009] In some embodiments, the shaft adopts a telescopic sleeve structure.

[0010] In some embodiments, the liquid scraping assembly further comprises a moving seat, the moving seat is slidingly connected to the shaft, and the two scrapers are installed on the moving seat.

[0011] In some embodiments, the moving seat comprises a moving part and a rotating part, the moving part is slidingly connected to the shaft, and the rotating part is rotatably connected to the moving part, and the two scrapers are installed on the rotating part.

[0012] In some embodiments, at least one scraper is slidingly connected to the rotating part, and the sliding direction of the scraper is directed along the vertical direction.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The lithium battery diaphragm edge oil removing mechanism can remove white oil remaining on the lithium battery diaphragm edge, avoid affecting the traction effect on the diaphragm due to the attachment of white oil on the traction roller, and prevent the diaphragm from being blocked due to the incomplete extraction of the edge white oil. BRIEF DESCRIPTION OF DRAWINGS

[0015] The above characteristics, technical features, advantages and implementation modes of the utility model will be further described in a clear and understandable manner in combination with the preferred embodiments and the drawings.

[0016] Figure 1 is the structure schematic view of the lithium battery diaphragm edge oil removing mechanism of the utility model.

[0017] Figure 2 is the structure schematic view of the liquid scraping mechanism of the lithium battery diaphragm edge oil removing mechanism of the utility model.

[0018] BRIEF DESCRIPTION OF DRAWINGS

[0019] 1. mounting seat; 2. shaft; 3. moving part; 4. rotating part; 5. scraper; 51. first scraper; 52. second scraper; 6. sliding block. DETAILED DESCRIPTION

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the specific implementation modes of the utility model will be described below with reference to the drawings. Obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor, and other embodiments can also be obtained.

[0021] As Figure 1 and Figure 2The utility model discloses a lithium battery diaphragm edge oil removing mechanism, including support and install the liquid scraping mechanism of support. In an embodiment, the support includes mounting seat 1 and shaft piece 2, and the shaft piece 2 is generally tubular structure, and the shaft piece 2 extends along the diaphragm width direction, and the both ends of shaft piece 2 are connected to mounting seat 1 respectively. The liquid scraping mechanism includes two liquid scraping assemblies, and two liquid scraping assemblies are configured on the both sides of diaphragm width direction, and the white oil on the both sides of diaphragm can be scraped respectively. In the embodiment, the structure of two liquid scraping assemblies can be same or different, and preferably, two liquid scraping assemblies are set to be same completely, and the installation and maintenance are convenient. It needs to be explained that the width direction refers to the direction perpendicular to the diaphragm moving direction.

[0022] Each liquid scraping assembly includes two scrapers 5, and the two scrapers 5 are configured to be staggered up and down in the diaphragm moving direction across the diaphragm, and the distance of the up and down stagger is preferably 10-20mm, which can prevent the diaphragm from being damaged due to excessive pressure. The two scrapers 5 form a gap allowing the diaphragm edge to pass through, and the two surfaces of the diaphragm edge are in contact with the two scrapers 5 when the diaphragm moves. In order to facilitate understanding, the two surfaces of the diaphragm are defined as the front surface and the back surface respectively, and the two scrapers 5 are defined as the first scraper 51 and the second scraper 52 respectively, the first scraper 51 is close to the front surface of the diaphragm, and is used for removing the white oil on the front surface of the diaphragm edge, and the second scraper 52 is close to the back surface of the diaphragm, and is used for removing the white oil on the back surface of the diaphragm edge.

[0023] In the embodiment, the length of the scraper 5 is determined by the width of the diaphragm edge, and cannot be shorter than the width of the diaphragm edge. The material of the scraper 5 can be reasonably set according to the characteristics of the diaphragm, such as stainless steel with wear resistance or resin, ceramic coated with wear-resistant coating, etc. The shape of the scraper 5 can be arc, "L" type, etc. As an example, the scraper 5 has an "L" type cross section, specifically, the scraper 5 includes two scraper plates, and the connecting part of the two scraper plates is rounded to form a scraping part, which can be in contact with the surface of the diaphragm, and at least the material of the scraping part is selected from stainless steel with wear resistance or resin coated with wear-resistant coating, ceramic, etc.

[0024] In the embodiment, the distance between the two liquid scraping assemblies can be adjusted, and the liquid scraping treatment can be suitable for the membranes with different widths. Therefore, the shaft 2 can be designed as a telescopic structure, or the liquid scraping assemblies can be designed as movable along the shaft 2. As an example, the shaft 2 is a telescopic structure (not shown). Specifically, the shaft 2 includes a first support pipe and a second support pipe, the second support pipe is inserted into the first support pipe and is in sliding connection with the first support pipe, the two liquid scraping assemblies are mounted on the first support pipe and the second support pipe respectively, and a plurality of adjusting holes for mounting adjusting bolts are formed in the first support pipe. By arranging the first support pipe and the second support pipe, the length of the telescopic support sleeve can be adjusted, so that the distance between the two liquid scraping assemblies can be adjusted.

[0025] In the embodiment, the contact angle between the liquid scraping assembly and the membrane can be adjusted, and the scraped white oil can be directly guided to a specified position, so that the white oil can be conveniently collected. Therefore, the moving seat includes a moving piece 3 and a rotating piece 4, the moving piece 3 is in sliding connection with the shaft 2, the rotating piece 4 is in rotating connection with the moving piece 3, the first scraper 51 for removing the front surface of the membrane and the second scraper 52 for removing the back surface of the membrane are both mounted on the rotating piece 4, and the moving piece 3 and the shaft 2 and the rotating piece 4 and the moving piece 3 can be fixed by adjusting bolts.

[0026] In the embodiment, the distance between the two scrapers 5 on the mounting seat 1 can be adjusted, and the liquid scraping treatment can be suitable for the membranes with different thicknesses. Therefore, the first scraper 51 can slide along the mounting seat 1, or the second scraper 52 can slide along the mounting seat 1. The embodiment is not particularly limited. As an example, the first scraper 51 can slide along the mounting seat 1. Specifically, the mounting seat 1 is provided with a sliding groove, a sliding block 6 is in sliding connection in the sliding groove, the first scraper 51 is mounted on the sliding block 6, and the sliding block 6 and the mounting seat 1 can be fixed by adjusting bolts.

[0027] The lithium battery membrane edge oil removing mechanism can remove the white oil remaining on the lithium battery membrane edge, avoid affecting the traction effect of the membrane due to the attachment of the white oil on the traction roller, and prevent the membrane from being blocked due to the incomplete extraction of the white oil on the edge.

[0028] It should be noted that the above embodiments can be freely combined as needed. The above are only preferred embodiments of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, can make a number of improvements and refinements, these improvements and refinements should also be considered within the scope of the present application.

Claims

1. A lithium battery separator edge oil removal mechanism characterized by, The device comprises a support and a liquid scraping mechanism mounted on the support, the liquid scraping mechanism comprises a pair of liquid scraping assemblies distributed along the width direction of the diaphragm, each liquid scraping assembly comprises two scrapers arranged above and below the diaphragm in the moving direction of the diaphragm.

2. The lithium battery separator edge oil removal mechanism of claim 1, wherein, The scraper is in the shape of "L", the scraper comprises two scraping plates, and the joint of the two scraping plates is rounded to form a liquid scraping part for contacting the surface of the diaphragm.

3. The lithium battery separator edge oil removal mechanism of claim 1, wherein, The distance between the two scrapers is 10-20 mm.

4. The lithium battery separator edge oil removal mechanism of claim 1, wherein, The support comprises a mounting seat and a shaft, the two ends of the shaft are mounted on the support, and the two liquid scraping assemblies are mounted on the shaft.

5. The lithium battery separator edge oil removal mechanism of claim 4, wherein, The shaft adopts a telescopic sleeve structure.

6. The lithium battery separator edge oil removal mechanism of claim 4, wherein, The liquid scraping assembly further comprises a moving seat, the moving seat is slidingly connected to the shaft, and the two scrapers are mounted on the moving seat.

7. The lithium battery separator edge oil removal mechanism of claim 6, wherein, The moving seat comprises a moving part and a rotating part, the moving part is slidingly connected to the shaft, the rotating part is rotationally connected to the moving part, and the two scrapers are mounted on the rotating part.

8. The lithium battery separator edge oil removal mechanism of claim 7, wherein, At least one scraper is slidingly connected to the rotating part, and the sliding direction of the scraper is vertically directed.

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