Polyimide lithium ion battery diaphragm production winding mechanism

Abstract

The utility model discloses a polyimide lithium ion battery diaphragm production winding mechanism which comprises a main shaft, two sides of the main shaft are respectively provided with an installation plate, the outer side of the main shaft is sleeved with a group of winding drums used for winding a diaphragm, and the inner side of the group of winding drums is provided with an extending mechanism used for extending the specification of the winding drums. A supporting plate is arranged between every two adjacent winding drums, an adjusting mechanism for adjusting the angle of the winding drums is arranged between each supporting plate and the main shaft, and limiting plates are arranged on the inner walls, located on the outer sides of the winding drums, of the mounting plates. The specification of the winding drum is properly changed, so that it is guaranteed that a diaphragm can be stably wound on the winding drum, the situation that the winding film deviates or folds is avoided, meanwhile, the specification of the winding drum can be limited through the supporting plates on the two sides, the specification of the winding drum is kept stable, and the winding drum is prevented from shaking in the winding process.

Description

Technical Field

[0001] The utility model relates to the technical field related to battery diaphragm winding, in particular to a polyimide lithium ion battery diaphragm production and winding mechanism. Background Art

[0002] In the structure of lithium batteries, the diaphragm is one of the key inner components. The performance of the diaphragm determines the interface structure, internal resistance, etc. of the battery, and directly affects the battery's capacity, cycle, safety performance and other characteristics. A diaphragm with excellent performance plays an important role in improving the comprehensive performance of the battery, and the diaphragm needs to be rolled up during the processing; when the diaphragm is processed and rolled up, the entire diaphragm needs to be cut into the required size and then rolled up separately, but the existing winding mechanism has a simple structure, and the roll specifications cannot be changed according to the actual size of the roll film during winding, which may cause the diaphragm to be unable to be stably rolled up on the roll, resulting in the diaphragm position being offset and affecting subsequent use.

[0003] To this end, we propose a polyimide lithium-ion battery separator production winding mechanism to solve the above problems. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a polyimide lithium ion battery separator production winding mechanism.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A polyimide lithium-ion battery diaphragm production winding mechanism comprises a main shaft, mounting plates are respectively arranged on both sides of the main shaft, a group of reels for winding the diaphragm are sleeved on the outer side of the main shaft, an extension mechanism for extending the size of the reels is arranged on the inner side of a group of reels, a support plate is arranged between adjacent reels, an adjustment mechanism for adjusting the angle of the reels is arranged between the support plate and the main shaft, and a limit plate is arranged on the inner wall of the mounting plate located on the outer side of the reel.

[0007] Preferably, the mounting plate is connected to the side wall of the spindle via threads, and a group of mounting holes are provided on the side wall of the mounting plate.

[0008] Preferably, a guide groove is provided on the side wall of the main shaft, a guide block is connected to the inner wall of the reel, and the guide block extends into the guide groove to cooperate with the guide groove.

[0009] Preferably, the reel is of two-stage design, and the extension mechanism includes a slot opened on the side wall of the reel on one side, and an extension plate is connected to the side wall of the reel on the other side, and the extension plate extends into the slot, and an extension spring is connected between the extension plate and the inner wall of the slot.

[0010] Preferably, one end of the support plate close to the reel is rotatably connected to the reel.

[0011] Preferably, the adjustment mechanism includes an adjustment screw connected to the side wall of the main shaft, an adjustment plate is arranged outside the adjustment screw, the support plate is rotationally connected to the adjustment plate, and an adjustment nut is threadedly arranged on the part of the adjustment screw located outside the adjustment plate.

[0012] Preferably, a slide groove is provided on the inner wall of the mounting plate, two ends of the limiting plate extend into the slide groove, and bolts are rotatably provided on the side walls of the slide groove.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] When the utility model is in use, the device is installed on the external winding equipment through the mounting plate and the mounting hole. At the same time, through the design of multiple rolls, the diaphragms after cutting can be rolled up separately; and through the cooperation of the extension plate and the extension spring, the internal size of the roll can be adjusted, and then the size of the roll can be appropriately changed according to the actual size of the cut diaphragm, so as to ensure that the diaphragm can be stably wound on the roll, thereby avoiding the deviation or wrinkling of the roll film. At the same time, the support plates on both sides can limit the size of the roll, so that the size of the roll remains stable and the roll is prevented from shaking during the winding process. The adjusting screw and the adjusting nut are screwed together, and the angle and outward extension length of the support plate can be adjusted, so as to adapt it according to the size of the roll. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the explosion structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the reel and its accessory structure of the utility model;

[0018] Figure 4 For this utility model Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0019] In the figure: 1-spindle, 2-mounting plate, 201-mounting hole, 3-reel, 301-guide groove, 302-guide block, 4-extension mechanism, 401-slot, 402-extension plate, 403-extension spring, 5-support plate, 6-adjustment mechanism, 601-adjustment screw, 602-adjustment plate, 603-adjustment nut, 7-limiting plate, 701-slide groove, 702-bolt. DETAILED DESCRIPTION

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] In the description of the present invention, "plurality" means two or more than two, unless otherwise clearly and specifically defined.

[0022] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Reference Figure 1-4 A polyimide lithium-ion battery diaphragm production and winding mechanism comprises a main shaft 1, mounting plates 2 are respectively arranged on both sides of the main shaft 1, the mounting plates 2 are connected to the side walls of the main shaft 1 by threads, the mounting plates 2 can be quickly disassembled to adjust the number of internal reels, a group of mounting holes 201 are opened on the side walls of the mounting plates 2, a group of reels 3 for winding the diaphragm are sleeved on the outside of the main shaft 1, a guide groove 301 is opened on the side wall of the main shaft 1, a guide block 302 is connected to the inner wall of the reel 3, the guide block 302 extends into the guide groove 301 to cooperate with it, and the position of the reel 3 is restricted to prevent the reel 3 from rotating.

[0025] An extension mechanism 4 for extending the size of a group of reels 3 is arranged on the inner side. The reel 3 is a two-stage design. The extension mechanism 4 includes a slot 401 opened on the side wall of the reel 3 on one side, and an extension plate 402 is connected to the side wall of the reel 3 on the other side. The extension plate 402 extends into the slot 401. An extension spring 403 is connected between the extension plate 402 and the inner wall of the slot 401. Through the cooperation of the extension plate 402 and the extension spring 403, the internal size of the reel 3 can be adjusted, and then the size of the reel 3 can be appropriately changed according to the actual size of the cutting diaphragm.

[0026] A support plate 5 is arranged between adjacent reels 3, and one end of the support plate 5 close to the reel 3 is rotatably connected to the reel 3. The support plate 5 can limit the size of the reel 3 so that the size of the reel 3 remains stable. An adjustment mechanism 6 for adjusting the angle is arranged between the support plate 5 and the main shaft 1. The adjustment mechanism 6 includes an adjustment screw 601 connected to the side wall of the main shaft 1, and an adjustment plate 602 is arranged on the outer side of the adjustment screw 601. The support plate 5 is rotatably connected to the adjustment plate 602, and the part of the adjustment screw 601 located on the outer side of the adjustment plate 602 is threadedly provided with an adjustment nut 603. The adjustment screw 601 and the adjustment nut 603 are threadedly matched, so that the angle and outward extension length of the support plate can be adjusted.

[0027] A limiting plate 7 is provided on the inner wall of the mounting plate 2 located on the outer side of the reel 3. A sliding groove 701 is opened on the inner wall of the mounting plate 2. Both ends of the limiting plate 7 extend into the sliding groove 701. Bolts 702 are rotatably provided on the side wall of the sliding groove 701. The position of the limiting plate 7 is adjusted to limit the amount of the reel 3 that is wound up with the diaphragm, so as to prevent the diaphragm from being wound up too much and causing subsequent deviation from the range of action of the reel 3.

[0028] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principle of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

[0029] In the description of the present invention, it is necessary to understand that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

Claims

1. A polyimide lithium-ion battery separator production winding mechanism, comprising a main shaft (1), characterized in that: Mounting plates (2) are respectively arranged on both sides of the main shaft (1); a group of reels (3) for winding up the diaphragm are sleeved on the outer side of the main shaft (1); an extension mechanism (4) for extending the size of the reels (3) is arranged on the inner side of the reels (3); a support plate (5) is arranged between adjacent reels (3); an adjustment mechanism (6) for adjusting the angle of the support plate (5) and the main shaft (1) is arranged; a limit plate (7) is arranged on the inner wall of the mounting plate (2) located on the outer side of the reel (3).

2. A polyimide lithium-ion battery separator production winding mechanism according to claim 1, characterized in that: The mounting plate (2) is connected to the side wall of the main shaft (1) via threads, and a group of mounting holes (201) are provided on the side wall of the mounting plate (2).

3. A polyimide lithium-ion battery separator production winding mechanism according to claim 1, characterized in that: A guide groove (301) is provided on the side wall of the main shaft (1), and a guide block (302) is connected to the inner wall of the reel (3), and the guide block (302) extends into the guide groove (301) to cooperate therewith.

4. A polyimide lithium-ion battery separator production winding mechanism according to claim 1, characterized in that: The reel (3) is of two-stage design, the extension mechanism (4) comprises a slot (401) formed on a side wall of the reel (3) on one side, an extension plate (402) connected to the side wall of the reel (3) on the other side, the extension plate (402) extending into the slot (401), and an extension spring (403) connected between the extension plate (402) and the inner wall of the slot (401).

5. A polyimide lithium-ion battery separator production winding mechanism according to claim 1, characterized in that: One end of the support plate (5) close to the reel (3) is rotatably connected to the reel (3).

6. A polyimide lithium-ion battery separator production winding mechanism according to claim 1, characterized in that: The adjusting mechanism (6) comprises an adjusting screw (601) connected to the side wall of the main shaft (1); an adjusting plate (602) is arranged outside the adjusting screw (601); the supporting plate (5) is rotatably connected to the adjusting plate (602); and an adjusting nut (603) is threadedly arranged on the portion of the adjusting screw (601) located outside the adjusting plate (602).

7. A polyimide lithium-ion battery separator production winding mechanism according to claim 1, characterized in that: A sliding groove (701) is provided on the inner wall of the mounting plate (2), two ends of the limiting plate (7) extend into the sliding groove (701), and bolts (702) are rotatably provided on the side wall of the sliding groove (701).

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