Lithium battery diaphragm winding device
By designing a lithium battery separator rewinding device that includes a cylinder, a pressure roller and an electrostatic roller, the problem of the separator being easily wrinkled and affected by dust during rewinding is solved, achieving efficient rewinding and dust cleaning of the separator, and improving the performance of the separator. quality.
Patent Information
- Application Number
- CN202421224707.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-05-30
AI Technical Summary
The existing lithium battery separators are prone to wrinkles when coiled, causing the separator to deform and damage, and the particle dust is easily squeezed to the separator during tensioning, affecting the quality of the separator.
A lithium battery separator rewinding device is designed, including a rewinding box, a driving rod, a rewinding roller, an electrostatic roller, a cylinder, a support frame, a pressure roller and a guide roller. The tensioning of the separator is achieved through the cylinder and pressure roller, and the tensioning of the separator is achieved through the cylinder and pressure roller. The electrostatic roller and dust removal mechanism clean the dust on the diaphragm surface.
It effectively avoids wrinkles and deformation of the diaphragm during the rewinding process, improves the rewinding quality of the diaphragm, and cleans dust through the dust removal mechanism to protect the integrity of the diaphragm.
Smart Images
Figure CN222373961U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lithium battery diaphragm winding, and more specifically, to a lithium battery diaphragm winding device. Background Art
[0002] The main parts of the battery are composed of five parts: positive electrode, negative electrode, electrolyte, separator and shell. Among them, the lithium battery separator, as an important component of the lithium-ion battery, plays the role of separating the positive and negative electrodes, preventing internal short circuit of the battery, allowing electrolyte ions to pass freely, and completing the electrochemical charge and discharge process. Its performance determines the interface structure and internal resistance of the battery, and directly affects the battery's capacity, cycle performance, safety performance and other characteristics.
[0003] When the existing lithium battery separator is rolled up, in order to avoid wrinkles during the rolling of the lithium battery separator, the lithium battery separator needs to be tensioned. During the tensioning, the dust particles on the lithium battery separator are pressed by pressure, which can easily cause the lithium battery separator to deform and damage. Utility Model Content
[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a lithium battery separator winding device.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lithium battery diaphragm winding device, comprising a winding box and a diaphragm, an active rod is rotatably installed at one end of the winding box, a winding roller is installed on the outside of the active rod, a motor is installed on one side of the winding box, the output end of the motor is fixedly connected to one side of the active rod, two driven rods are rotatably installed at the other end of the winding box, an electrostatic roller is installed on the outside of the driven rod, the electrostatic roller and one side of the active rod are transmission-connected through a connecting assembly, and a dust removal mechanism is provided on one side of the electrostatic roller;
[0006] The dust removal mechanism includes a ventilation cylinder, a fixed box is installed on one side of the ventilation cylinder, an opening is opened on the top of the fixed box, a scraper is also installed on the top of the fixed box, a filter frame is placed inside the fixed box, and a fan is installed inside the ventilation cylinder.
[0007] Furthermore, a cylinder is installed at the middle end of the top of the winding box, a support frame is installed at the output end of the cylinder, a pressure roller is rotatably installed on the inner side of the support frame, and two guide rollers are also rotatably installed inside the winding box, and the guide rollers are located at both ends of the pressure roller.
[0008] Furthermore, a through hole adapted to the size of the diaphragm is opened at one end of the winding box, the bottom of the pressure roller is rollingly connected to the top of the diaphragm, the two electrostatic rollers are rollingly connected to the top and bottom of the diaphragm, and the sides of the two guide rollers close to each other are rollingly connected to the bottom of the diaphragm.
[0009] Furthermore, the connecting assembly includes a rotating rod, which is rotatably installed on one side of the winding box, one side of the rotating rod is transmission-connected to one side of the active rod through a belt transmission assembly 1, one side of the two driven rods is transmission-connected through a belt transmission assembly 2, and a driving gear is also installed on one side of the rotating rod, a driven gear is meshed on the top of the driving gear, and the driven gear is installed on one side of the bottom driven rod.
[0010] Furthermore, the top of the scraper is provided with an inclined surface inclined toward the opening, the interior of the fixed box is provided with a mounting hole slidably connected to the limit block, the top of the limit block is installed with a connecting rod, the top of the connecting rod located at the top of the fixed box is installed with a pressure plate, a spring is elastically connected between the top of the limit block and the mounting hole, and the top of the filter frame is provided with a positioning groove slidably connected to the limit block.
[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: a cylinder, a support frame, a pressure roller and a guide roller are provided to squeeze the lithium battery diaphragm during winding, so that the lithium battery diaphragm is in a tensioned state, thereby increasing the winding effect of the lithium battery diaphragm; a dust removal mechanism is added to the front end of the guide roller, and in conjunction with the connecting assembly, the electrostatic roller can realize the dust removal operation on the top and bottom of the lithium battery diaphragm during tensioning, and the particulate dust on the surface of the lithium battery diaphragm can be cleaned and collected into the filter frame for storage, which can prevent the particulate dust from affecting the quality of the lithium battery diaphragm during subsequent tensioning and improve the winding quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0013] Figure 2 This is a rear view of the connection assembly of the utility model;
[0014] Figure 3 This is a schematic diagram of the internal structure of the winding box of the utility model;
[0015] Figure 4 It is a schematic diagram of the dust removal mechanism of the utility model;
[0016] Figure 5 This is a schematic diagram of the internal structure of the fixing box of the utility model;
[0017] Figure 6 For the utility model Figure 5 A magnified view of the structure in the middle.
[0018] In the figure:
[0019] 1. Winding box; 2. Diaphragm; 3. Active rod; 4. Winding roller; 5. Motor; 6. Rotating rod; 7. Belt transmission component one; 8. Active gear; 9. Driven rod; 10. Belt transmission component two; 11. Driven gear; 12. Electrostatic roller; 13. Ventilation duct; 1301. Fixed box; 1302. Scraper; 1303. Filter frame; 1304. Fan; 14. Guide roller; 15. Cylinder; 16. Support frame; 17. Pressing roller; 18. Limiting block; 19. Connecting rod; 20. Pressing plate; 21. Spring. DETAILED DESCRIPTION
[0020] 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.
[0021] See also Figure 1-5 The utility model provides the following technical solutions: a lithium battery diaphragm winding device, including a winding box 1 and a diaphragm 2, an active rod 3 is rotatably installed at one end of the winding box 1, a winding roller 4 is installed on the outside of the active rod 3, a motor 5 is installed on one side of the winding box 1, the output end of the motor 5 is fixedly connected to one side of the active rod 3, the active rod 3 and the winding roller 4 are driven by the motor 5 to rotate, and the lithium battery diaphragm is wound by the rotation of the winding roller 4, and two driven rods 9 are rotatably installed at the other end of the winding box 1, an electrostatic roller 12 is installed on the outside of the driven rod 9, and the electrostatic roller 12 and one side of the active rod 3 are connected by a connecting assembly. The connecting assembly includes a rotating rod 6, which is rotatably installed on one side of the winding box 1. One side of the rod 6 is connected to one side of the active rod 3 through a belt transmission component 17, and one side of the two driven rods 9 is connected through a belt transmission component 2 10. A driving gear 8 is also installed on one side of the rotating rod 6, and a driven gear 11 is meshed on the top of the driving gear 8. The driven gear 11 is installed on one side of the bottom driven rod 9. The belt transmission component 1 7 and the belt transmission component 2 10 have the same structure. In order to distinguish them, they are crowned with one and two and given different numbers. The belt transmission component 1 7 and the belt transmission component 2 10 are both composed of two tensioning belts on the outer sides of two pulleys. The active rod 3 drives the rotating rod 6 to transmit the transmission through the belt transmission component 1 7, and the transmission of the two driven rods 9 is realized through the belt transmission component 2 10.
[0022] A cylinder 15 is installed at the middle end of the top of the winding box 1, and a support frame 16 is installed at the output end of the cylinder 15. A pressure roller 17 is rotatably installed on the inner side of the support frame 16. Two guide rollers 14 are also rotatably installed inside the winding box 1. The guide rollers 14 are located at both ends of the pressure roller 17. A through hole adapted to the size of the diaphragm 2 is opened at one end of the winding box 1. The bottom of the pressure roller 17 is rollingly connected to the top of the diaphragm 2. The diaphragm 2 is squeezed by the pressure roller 17 so that the diaphragm 2 is in a tensioned state. The two electrostatic rollers 12 are rollingly connected to the top and bottom of the diaphragm 2. The active rod 3, the driven rod 9 and one side of the guide roller 14 are rotatably connected. The sides of the two guide rollers 14 that are close to each other are rollingly connected to the bottom of the diaphragm 2. The gap between the two electrostatic rollers 12 is flush with the top of the guide roller 14 and the top of the winding roller 4.
[0023] A dust removal mechanism is provided on one side of the electrostatic roller 12, and the dust removal mechanism includes a ventilator 13, a fixed box 1301 is installed on one side of the ventilator 13, an opening is provided on the top of the fixed box 1301, a scraper 1302 is also installed on the top of the fixed box 1301, a filter frame 1303 is placed inside the fixed box 1301, a fan 1304 is installed inside the ventilator 13, the top of the scraper 1302 is rotatably connected to the outer side of the electrostatic roller 12, and the top of the scraper 1302 is provided with an opening inclined toward the opening. The inclined surface of the electrostatic roller 12, during the rotation of the electrostatic roller 12, the dust on the outside of the electrostatic roller 12 is blocked by the scraper 1302 and falls from the outside of the electrostatic roller 12. The design of the inclined surface on the top of the scraper 1302 allows the dust to fall to the top opening of the fixed box 1301 better. One end of the fixed box 1301 is provided with a socket that is slidably connected to the filter frame 1303. The top of the filter frame 1303 is provided with an opening that is conductive to the top opening of the fixed box 1301. One end of the filter frame 1303 extends out of the socket part, which is convenient for Subsequently, the filter frame 1303 is pulled out from the jack of the fixed box 1301. The interior of the fixed box 1301 is provided with a mounting hole that is slidably connected to the limit block 18. A connecting rod 19 is installed on the top of the limit block 18. A connecting hole that is slidably connected to the connecting rod 19 is opened on the top of the fixed box 1301. A pressing plate 20 is installed on the top of the connecting rod 19 located at the top of the fixed box 1301. A spring 21 is elastically connected between the top of the limit block 18 and the mounting hole. The limit block 18 is limited by the spring 21. In the sliding position, a positioning groove is provided on the top of the filter frame 1303 which is slidably connected to the limit block 18, and the friction resistance between the limit block 18 and the filter frame 1303 is increased by the positioning groove. An air outlet connected to the ventilation duct 13 is provided on one side of the fixed box 1301, and a filter hole connected to the air outlet is provided on one side of the filter frame 1303. A glass door is rotatably installed on the other side of the winding box 1, and a fixing hole connected to the ventilation duct 13 is provided on one side of the glass door, and a filter net is embedded in the fixing hole.
[0024] Working principle: when in use, open the glass door of the winding box 1, first pass the diaphragm 2 through the through hole at one end of the winding box 1, let the diaphragm 2 pass through the two electrostatic rollers 12, pass through the top of the guide roller 14, and wrap around the outside of the winding roller 4 from the bottom of the pressure roller 17, then close the glass door of the winding box 1, start the cylinder 15, drive the support frame 16 and the pressure roller 17 to move downward, the pressure roller 17 squeezes the diaphragm 2 downward to tighten the diaphragm 2, start the motor 5, the motor 5 drives the active rod 3 and the winding roller 4 to rotate, the active rod 3 drives the rotating rod 6 to rotate through the belt transmission component 1 7, the rotating rod 6 drives the active gear 8 to rotate, the active gear 8 is engaged with the driven gear 11, and drives the bottom driven rod 9 to rotate, the bottom driven rod 9 drives the top driven rod 9 to rotate through the belt transmission component 2 10, and drives The two electrostatic rollers 12 rotate, and the electrostatic rollers 12 rotate to absorb the dust on the surface of the diaphragm 2, and then the fan 1304 is started. The absorbed dust contacts the scraper 1302 after the electrostatic rollers 12 rotate, and the scraper 1302 scrapes the dust on the surface of the electrostatic roller 12. Affected by the wind force of the fan 1304, the dust falls through the opening at the top of the fixed box 1301 to the filter frame 1303 for centralized storage. At the same time, the winding roller 4 rotates to wind up the diaphragm 2 after cleaning the dust. When cleaning the filter frame 1303, slide the pressure plate 20 upwards, and drive the limit block 18 to slide through the connecting rod 19, so that the limit block 18 is disengaged from the positioning groove at the top of the filter frame 1303. At this time, slide the filter frame 1303 toward the end away from the winding roller 4 to take out the filter frame 1303.
[0025] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.
[0026] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.
Claims
1. A lithium battery diaphragm winding device, comprising a winding box (1) and a diaphragm (2), characterized in that: An active rod (3) is rotatably mounted on one end of the winding box (1), a winding roller (4) is mounted on the outside of the active rod (3), a motor (5) is mounted on one side of the winding box (1), an output end of the motor (5) is fixedly connected to one side of the active rod (3), two driven rods (9) are rotatably mounted on the other end of the winding box (1), an electrostatic roller (12) is mounted on the outside of the driven rod (9), the electrostatic roller (12) and one side of the active rod (3) are transmission-connected via a connecting assembly, and a dust removal mechanism is provided on one side of the electrostatic roller (12); The dust removal mechanism comprises a ventilation cylinder (13), a fixed box (1301) is installed on one side of the ventilation cylinder (13), an opening is provided on the top of the fixed box (1301), a scraper (1302) is also installed on the top of the fixed box (1301), a filter frame (1303) is placed inside the fixed box (1301), and a fan (1304) is installed inside the ventilation cylinder (13).
2. A lithium battery separator winding device according to claim 1, characterized in that: A cylinder (15) is installed at the middle end of the top of the winding box (1), a support frame (16) is installed at the output end of the cylinder (15), a pressure roller (17) is rotatably installed on the inner side of the support frame (16), and two guide rollers (14) are also rotatably installed inside the winding box (1), and the guide rollers (14) are located at both ends of the pressure roller (17).
3. A lithium battery separator winding device according to claim 2, characterized in that: One end of the winding box (1) is provided with a through hole adapted to the size of the diaphragm (2); the bottom of the pressure roller (17) is rollingly connected to the top of the diaphragm (2); the two electrostatic rollers (12) are rollingly connected to the top and bottom of the diaphragm (2); and the sides of the two guide rollers (14) that are close to each other are rollingly connected to the bottom of the diaphragm (2).
4. A lithium battery separator winding device according to claim 1, characterized in that: The connecting assembly comprises a rotating rod (6), the rotating rod (6) being rotatably mounted on one side of the winding box (1), one side of the rotating rod (6) being transmission-connected to one side of the active rod (3) via a belt transmission assembly 1 (7), one side of the two driven rods (9) being transmission-connected via a belt transmission assembly 2 (10), one side of the rotating rod (6) being further mounted with a driving gear (8), the top of the driving gear (8) being meshed with a driven gear (11), and the driven gear (11) being mounted on one side of the bottom driven rod (9).
5. A lithium battery separator winding device according to claim 1, characterized in that: The top of the scraper (1302) is provided with an inclined surface inclined toward the opening, the interior of the fixed box (1301) is provided with a mounting hole slidably connected to the limit block (18), the top of the limit block (18) is installed with a connecting rod (19), and the top of the connecting rod (19) located at the top of the fixed box (1301) is installed with a pressure plate (20), a spring (21) is elastically connected between the top of the limit block (18) and the mounting hole, and the top of the filter frame (1303) is provided with a positioning groove slidably connected to the limit block (18).