Extraction and wrinkle removal device for lithium battery diaphragm production line

Abstract

The utility model discloses an extraction and wrinkle removal device for a lithium battery diaphragm production line, which comprises an extraction tank and a roller which is fixedly arranged in the extraction tank and allows diaphragms to pass through in sequence, a movable mechanism is arranged in the extraction tank, a wrinkle removal roller for improving wrinkles on the diaphragms is arranged on the movable mechanism, and the movable mechanism comprises an adjusting column. An air conveying cavity is formed in the end of the adjusting column, and the end of the air conveying cavity is movably connected with the rotating rod. The wrinkle removing device is simple in structure, the wrinkle removing roller is driven to rotate at different speeds according to the size of compressed air, wrinkles of the extraction diaphragm can be movably improved, the contact strength of the wrinkle removing roller and the diaphragm surface can be controlled under the action of the movable mechanism, diaphragm breakage and other conditions are prevented, and the production efficiency is improved. In addition, the roller body and the wheel bones with smooth surfaces are not easy to cause appearance defects such as scratch and the like on the diaphragm surface of the lithium battery diaphragm, and the equipment is relatively simple to operate, high in operability, relatively low in cost and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery separator preparation, in particular to a wrinkle extraction and removal device for a lithium battery separator production line. Background Technique

[0002] From the perspective of the current social development prospect, green and low-carbon is the general trend of the world's development. The development of the new energy vehicle industry is also increasing day by day, and the production demand for lithium battery separators is indispensable. In the wet production process of lithium battery separators, the extraction of white oil from the separator in the extraction process is a crucial step. However, during the process of the separator moving forward in the extraction tank, wrinkles are extremely likely to occur, resulting in the scrapping of the separator due to appearance defects. Therefore, aiming at the extraction wrinkle phenomenon, a wrinkle removal device for the extraction process of a lithium battery separator production line is proposed.

[0003] The patent number [CN211338158U] flattens the film edges on both sides of the outlet of the drying oven by adopting the upper and lower shearing rollers at both ends of the separator, improves the film surface wrinkles at the cutting knife of the traction roller, reduces the probability of waste edge tearing at the cutting knife, ensures the continuity of production, and improves the production efficiency of products; in the patent number [CN214773964U], the flattening roller shaft located between the two end worms is subjected to equal and large extrusion forces at both ends by adopting the upper and lower support plates and the pattern roller, so that it bends upward after being stressed, and continuously approaches the pattern roller until it abuts against the pattern roller, realizing a better effect of flattening the film.

[0004] The above two lithium battery separator flattening devices mainly focus on the flattening effect at the front end of the winding of the separator master roll; in the production process of wet lithium battery separators, the white oil in the pores of the separator needs to be extracted through an extraction tank. Among them, the separator travels through the liquid dichloromethane, and the tension and resistance received by the separator itself are relatively large. Moreover, the wrinkles generated at the front end of the extraction tank cannot be improved in the subsequent processes such as the pulling between the rollers of the dichloromethane tank and the drying and volatilization shrinkage in the drying section. Content of the Utility Model

[0005] The purpose of the utility model is to provide a wrinkle extraction and removal device for a lithium battery separator production line to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A wrinkle extraction and removal device for a lithium battery separator production line, including an extraction tank and rollers fixedly arranged in the extraction tank for the separator to pass through in sequence. An active mechanism is installed in the extraction tank, and a wrinkle removal roller for improving the wrinkles on the separator is arranged on the active mechanism. The active mechanism includes an adjustment column, an air delivery cavity is opened at the end of the adjustment column, the end of the air delivery cavity is movably connected with a rotating rod, and an air delivery pipe for delivering air into its interior is installed at the end of the air delivery cavity far from the rotating rod. The end of the rotating rod located in the air delivery cavity is installed with a pneumatic component that rotates when contacting the air entering the air delivery cavity.

[0007] As a further solution of the present utility model: the wrinkle removal roller includes a roller body connected to a rotating rod, and a plurality of wheel bones are provided on the outer peripheral surface of the roller body.

[0008] As a further solution of the present utility model: the moving mechanism includes a driving component and a moving component. The driving component includes a main frame fixed in the extraction tank. A sliding groove communicating with its inner cavity is opened on the bottom surface of the main frame. A threaded rod is installed in the inner cavity of the main frame, and a rotating shaft rotatably connected to the main frame is installed at the end of the threaded rod.

[0009] As a further solution of the present utility model: the moving component includes an adjusting part threadedly sleeved on the outer peripheral surface of the threaded rod. An adjusting sleeve movably connected to the adjusting column is installed at the end of the adjusting part, and a bolt for changing the length between the adjusting sleeve and the adjusting column by rotation is provided on the surface of the adjusting sleeve.

[0010] As a further solution of the present utility model: a bearing is fixedly provided on the outer peripheral surface of the rotating rod. First and second notches communicating with the outside are respectively opened at both ends of the air delivery cavity. The inner diameter of the first notch is adapted to the outer diameter of the air delivery pipe, the inner diameter of the second notch is adapted to the outer diameter of the bearing, and the outer peripheral surface of the bearing is fixedly connected to the inner wall of the second notch.

[0011] Compared with the prior art, the beneficial effects of the present utility model are:

[0012] In this application, the wrinkle removal roller is driven to rotate at different speeds by the magnitude of compressed air, which can not only improve the wrinkles of the extraction diaphragm in a mobile manner, but also, under the action of the moving mechanism, not only control the contact force between the wrinkle removal roller and the membrane surface to prevent situations such as film breakage and film rupture, and the smooth roller body and wheel bones are not likely to cause appearance defects such as scratches on the surface of the lithium battery diaphragm. The operation of this device is relatively simple, with strong operability, low cost, and high practicability. Description of the Drawings

[0013] Figure 1 Schematic diagram of the wrinkle removal device of the present utility model;

[0014] Figure 2 Schematic diagram of the moving mechanism of the present utility model;

[0015] Figure 3 Schematic diagram of the roller body of the present utility model;

[0016] Figure 4 Schematic diagram of the inside of the air delivery cavity of the present utility model;

[0017] In the figure: 1. Extraction tank; 2. Roller; 3. Diaphragm; 4. Main frame; 5. Sliding groove; 6. Threaded rod; 7. Rotating shaft; 8. Adjusting part; 9. Bearing; 10. Adjusting sleeve; 11. Adjusting column; 12. Bolt; 13. Air delivery pipe; 14. Rotating rod; 15. Air delivery cavity; 16. Pneumatic part; 17. Roller body; 18. Wheel bone. Detailed implementation manners

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1-4 , in the embodiment of the present invention, an extraction and wrinkle removal device for a lithium battery diaphragm production line includes an extraction tank 1 and a roller 2 fixedly arranged in the extraction tank 1 for the diaphragm 3 to pass through in sequence. An activity mechanism is installed in the extraction tank 1, and a wrinkle removal roller for improving the wrinkles on the diaphragm 3 is arranged on the activity mechanism. The activity mechanism includes an adjusting column 11. An air delivery cavity 15 is opened at the end of the adjusting column 11. The end of the air delivery cavity 15 is movably connected to a rotating rod 14. And an air delivery pipe 13 for delivering air into its interior is installed at the end of the air delivery cavity 15 far from the rotating rod 14. A pneumatic part 16 that rotates when contacting the air entering the air delivery cavity 15 is installed at the end of the rotating rod 14 located in the air delivery cavity 15. The pneumatic part 16 is composed of a columnar rod and a plurality of blades.

[0020] Specifically, the wrinkle removal roller is driven by the activity mechanism to move horizontally, so as to realize wrinkle removal of the diaphragm 3. If the wrinkle removal roller cannot rotate by itself, during the process of pushing the wrinkle from the middle of the film to the edge of the film, the wrinkle may become very serious, breaking the film, or the wrinkle may not be brought over during the movement, and passing over the wrinkle without playing the role of moving the wrinkle. Secondly, the design of the air delivery cavity 15 can compress the air entering its interior. When the air entering the air delivery cavity 15 through the air delivery pipe 13 contacts the pneumatic part 16, a certain rotating force can be provided to the pneumatic part 16. The magnitude of the rotating force is controlled by the magnitude of the air volume entering. The larger the air volume, the faster the rotating speed. On the contrary, the smaller the air volume, the slower the rotating speed. The pneumatic part 16 drives the rotating rod 14 and drives the wrinkle removal roller to rotate by itself. After pressing, it rotates slowly, giving the film surface a loose and tight continuous state, which can ensure that the wrinkle is moved from the middle to the edge without damaging the film surface, thus playing a role in removing wrinkles without affecting normal production.

[0021] Please refer to Figure 2, in one embodiment, in this embodiment, preferably, the wrinkle-removing roller includes a roller body 17 connected to a rotating rod 14. A plurality of wheel bones 18 are provided on the outer peripheral surface of the roller body 17. The plurality of wheel bones 18 are equidistantly distributed on the outer peripheral surface of the roller body 17. The wheel bones 18 are smooth stainless steel semi-spheres, which can keep the film surface in a loose and tight continuous state to ensure that the film surface is not easily damaged.

[0022] Please refer to Figures 1-2 , in one embodiment, in this embodiment, preferably, the moving mechanism includes a driving component and a moving component. The driving component includes a main frame 4 fixedly arranged in the extraction tank 1. A sliding groove 5 communicating with its inner cavity is formed on the bottom surface of the main frame 4. A threaded rod 6 is installed in the inner cavity of the main frame 4, and a rotating shaft 7 rotatably connected to the main frame 4 is installed at the end of the threaded rod 6.

[0023] Specifically, a threaded rod 6 is horizontally installed in the inner cavity of the main frame 4, and one end of the threaded rod 6 is rotatably connected to the inner wall of the main frame 4. The other end of the threaded rod 6 is connected to the rotating shaft 7, and the end of the rotating shaft 7 far from the threaded rod 6 penetrates out of the inner cavity of the main frame 4. A manual driving member or an electric driving member for driving the rotating shaft 7 to rotate can be assembled on this end.

[0024] Please refer to Figure 2 , in one embodiment, in this embodiment, preferably, the moving component includes an adjusting member 8 threadedly sleeved on the outer peripheral surface of the threaded rod 6. An adjusting sleeve 10 movably connected to an adjusting column 11 is installed at the end of the adjusting member 8. A bolt 12 for changing the length between the adjusting sleeve 10 and the adjusting column 11 by rotation is provided on the surface of the adjusting sleeve 10. Further, the axial rotation of the adjusting member 8 is restricted by the sliding groove 5 and the range of its lateral movement is restricted. Under the action of the bolt 12, when the staff rotates clockwise or counterclockwise, it can adjust or fix the positions of the adjusting sleeve 10 and the adjusting column 11. When the end of the bolt 12 presses and contacts the surface of the adjusting column 11, the positions of the adjusting sleeve 10 and the adjusting column 11 can be fixed, and the contact position between the roller body 17 and the film surface of the diaphragm 3 can be reasonably adjusted.

[0025] Please refer to Figure 4 , in one embodiment, in this embodiment, preferably, first notches and second notches communicating with the outside are respectively formed at both ends of the air delivery cavity 15. The inner diameter of the first notch is adapted to the outer diameter of the air delivery pipe 13, and the inner diameter of the second notch is adapted to the outer diameter of the bearing 9. A bearing 9 is fixedly arranged on the outer peripheral surface of the rotating rod 14, and the outer peripheral surface of the bearing 9 is fixedly connected to the inner wall of the second notch, further ensuring the sealing performance of the air delivery cavity 15 and ensuring the stable delivery of air volume.

[0026] Working principle and usage process of the utility model: When in use, the staff rotates the bolt 12 to adjust the positions of the adjusting sleeve 10 and the adjusting column 11, so as to adjust the contact position between the roller body 17 and the membrane surface of the diaphragm 3. Secondly, compressed air is conveyed into the interior of the air delivery cavity 15 through the air delivery pipe 13. Secondly, the pneumatic member 16 rotates after contacting the compressed air, and then drives the rotating rod 14 and the roller body 17 to rotate in sequence. At the same time, a manual driving member or an electric driving member is used to drive the rotating shaft 7 to rotate, so that the adjusting member 8 can move on the outer peripheral surface of the threaded rod 6, and then drive the roller body 17 to move horizontally. Through the overall horizontal movement and the rotation of the roller body 17, the wrinkles generated on the diaphragm 3 are pushed to the edge of the diaphragm 3 to improve the wrinkle situation.

[0027] Although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0028] Therefore, the above description is only a preferred embodiment of the present application, and is not used to limit the scope of implementation of the present application; that is, all equivalent transformations made according to the scope of the claims of the present application are within the protection scope of the claims of the present application.

Claims

1. An extraction and wrinkle removal device for a lithium battery separator production line, comprising an extraction tank (1) and a roller (2) fixedly arranged in the extraction tank (1) for the separator (3) to pass through in sequence, characterized in that, An active mechanism is installed in the extraction tank (1). A wrinkle-removing roller for improving the wrinkles on the diaphragm (3) is provided on the active mechanism. The active mechanism includes an adjusting column (11). An air delivery cavity (15) is formed at the end of the adjusting column (11). The end of the air delivery cavity (15) is movably connected to a rotating rod (14). An air delivery pipe (13) for delivering air into its interior is installed at the end of the air delivery cavity (15) away from the rotating rod (14). A pneumatic member (16) that rotates when contacting the air entering the air delivery cavity (15) is installed at the end of the rotating rod (14) located in the air delivery cavity (15).

2. The extraction and wrinkle removal device for the lithium battery separator production line according to claim 1, wherein The wrinkle-removing roller includes a roller body (17) connected to the rotating rod (14). A plurality of wheel skeletons (18) are provided on the outer peripheral surface of the roller body (17).

3. The extraction and wrinkle removal device for the lithium battery separator production line according to claim 2, characterized in that, The active mechanism includes a driving component and a moving component. The driving component includes a main frame (4) fixed in the extraction tank (1). A sliding groove (5) communicating with its inner cavity is formed on the bottom surface of the main frame (4). A threaded rod (6) is installed in the inner cavity of the main frame (4). A rotating shaft (7) rotatably connected to the main frame (4) is installed at the end of the threaded rod (6).

4. The extraction and wrinkle removal device for a lithium battery separator production line according to claim 3, characterized in that, The moving component includes an adjusting member (8) threadedly sleeved on the outer peripheral surface of the threaded rod (6). An adjusting sleeve (10) movably connected to the adjusting column (11) is installed at the end of the adjusting member (8). A bolt (12) for changing the length between the adjusting sleeve (10) and the adjusting column (11) by rotation is provided on the surface of the adjusting sleeve (10).

5. The extraction and wrinkle removal device for a lithium battery separator production line according to claim 1, wherein, A bearing (9) is fixedly provided on the outer peripheral surface of the rotating rod (14). A first notch and a second notch communicating with the outside are respectively formed at the two ends of the air delivery cavity (15). The inner diameter of the first notch is adapted to the outer diameter of the air delivery pipe (13). The inner diameter of the second notch is adapted to the outer diameter of the bearing (9). The outer peripheral surface of the bearing (9) is fixedly connected to the inner wall of the second notch.

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