Full-automatic winding device for lithium battery production
By designing multi-arc close-fitting rollers and a thread adjustment mechanism on the lithium battery winding machine, the problem of loose cores was solved, ensuring tight contact of the cores and high-quality winding.
Patent Information
- Application Number
- CN202422865400.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2034-11-25
AI Technical Summary
When producing elliptical battery cells, existing lithium battery winding machines cannot achieve tight contact between the core surface and the curved component, resulting in a loose core.
The design incorporates multiple arc-shaped elements on the surface of the contact roller. Each arc surface contacts half of the outer arc surface of the core on the winding plate, and the sliding plate is supported by springs to ensure that the core and the contact roller surface are always in close contact. At the same time, the adjustment mechanism and the contact mechanism are moved downward by the threaded shaft to avoid affecting the rotation of the winding plate.
This achieves stable extrusion of the core, ensures close contact of the core, and improves winding quality.
Smart Images
Figure CN223828456U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to lithium battery production technical field, concretely is a full -automatic winding device for lithium battery production. BACKGROUND
[0002] Lithium battery winding is an important procedure in battery production, mainly placing the positive and negative electrode sheets and other materials of polymer battery on the winding machine to combine various materials according to certain rules by winding, and the existing lithium battery winding machine can realize winding core action when making oval battery core by fixing negative electrode sheet, diaphragm and positive electrode sheet through winding plate and high-speed rotating, needs to be cut after winding, since a certain length of positive and negative electrode sheet and diaphragm are reserved, subsequent winding is needed, the prior art is through an arc member contacting the winding core outside to ensure that the winding core is tight, since the winding core surface is arc-shaped, the surface cannot be in close contact with the arc member outside at all times when rotating, and the winding core is not tight, therefore, aiming at the above problems, a full -automatic winding device for lithium battery production is provided. SUMMARY
[0003] The utility model aims at providing a full -automatic winding device for lithium battery production to solve the problems in the above background.
[0004] To achieve the above object, the utility model provides the following technical scheme: a full -automatic winding device for lithium battery production, including winding machine, carousel and winding plate,
[0005] The inside of winding machine is installed carousel, the inside of carousel is installed the winding plate that is symmetrically arranged, the outside of winding plate on one side is provided with winding core, and the one side of winding core is provided with negative electrode sheet, diaphragm and positive electrode sheet,
[0006] The lower portion of winding plate on the other side is provided with lifting mechanism, and the outside of lifting mechanism is fixedly connected with winding machine, the top of lifting mechanism is fixedly connected with adjusting mechanism, and the inside of adjusting mechanism is fixedly connected with close -fitting mechanism,
[0007] The close -fitting mechanism includes fixed plate, first motor and pivot, the bottom of fixed plate is fixedly connected with adjusting mechanism, the rear side of fixed plate on the rear side is fixedly connected with first motor, and the main shaft end of first motor is fixedly connected with pivot, the other end of pivot is rotatably connected with fixed plate, and the outside of pivot is fixedly connected with close -fitting roller.
[0008] Further, the outside of close -fitting roller is provided with multiple arc surfaces.
[0009] The prior lithium battery winding machine is used for manufacturing an elliptical battery core, and the negative pole piece, the diaphragm and the positive pole piece are fixed by a winding plate, and then the winding core is rotated at high speed to realize the winding core action, and the winding core needs to be cut after winding, and a certain length of the positive pole piece, the negative pole piece and the diaphragm are reserved for subsequent winding, and the prior art is contacted with the outer side of the winding core through an arc-shaped part to ensure that the winding core is tightly contacted, and the surface of the winding core is in arc shape, and the surface cannot be contacted with the arc-shaped part at all times when rotating, and the winding core is not tightly contacted, and the surface of the close-rolling roller is provided in multiple arc shapes, and each arc surface is contacted with the 1 / 2 arc surface of the winding core on the outer side of the winding plate, so that the purpose of stable extrusion is realized, and the spring can support the movement of the sliding plate, the sliding plate drives the movement of the fixed plate, so that the close-rolling roller can move up and down to a certain extent, the winding core is contacted with the surface of the close-rolling roller at all times, and the winding quality of the winding core is ensured.
[0010] Further, the adjusting mechanism comprises a moving frame, a sliding plate and a spring, the bottom of the moving frame is fixedly connected with the lifting mechanism, the sliding plate is slidably connected in the moving frame, the top of the sliding plate is fixedly connected with the fixed plate, the bottom of the sliding plate is fixedly connected with the spring, and the bottom of the spring is fixedly connected with the moving frame.
[0011] Further, the lifting mechanism comprises a fixed frame, a second motor and a threaded shaft, the outer side of the fixed frame is fixedly connected with the winding machine, the second motor is fixedly connected in the fixed frame, the main shaft of the second motor is fixedly connected with the threaded shaft, the outer side of the threaded shaft is spirally connected with a threaded sleeve, and the top of the threaded sleeve is fixedly connected with the adjusting mechanism.
[0012] Further, the outer side of the threaded sleeve is provided with a sliding groove, and the threaded sleeve is slidably connected with a sliding block through the sliding groove.
[0013] When the rotating disc rotates, the second motor is started to drive the threaded shaft to rotate, the threaded shaft drives the threaded sleeve to move downward, at this time, the threaded sleeve drives the adjusting mechanism and the close-rolling mechanism to move downward, so as to avoid the influence of the close-rolling mechanism on the rotation of the winding plate, and ensure that the winding plate can be normally used, and the sliding block can ensure that the threaded sleeve moves downward stably.
[0014] Compared with the prior art, the beneficial effects of the present application are:
[0015] 1. In use, the surface of the pressing roller is arranged in multiple arc shapes, and each arc surface contacts 1 / 2 arc surface of the core on the outer side of the winding plate, thereby achieving stable extrusion. At the same time, the spring can support the movement of the sliding plate, and the sliding plate drives the fixed plate to move, thereby ensuring that the pressing roller can move up and down to a certain extent, ensuring that the core and the surface of the pressing roller are always in close contact, and ensuring the winding quality of the core.
[0016] 2. When the turntable rotates, it drives the threaded shaft to rotate by starting the second motor. The threaded shaft drives the threaded sleeve to move down. At this time, the threaded sleeve drives the adjustment mechanism and the clamping mechanism to move down, so as to avoid the clamping mechanism affecting the rotation of the winding plate and ensure that it can be used normally. The slider is set to ensure that the threaded sleeve moves down stably. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the tight-fitting mechanism of this utility model;
[0019] Figure 3 This is a schematic diagram of the adjustment mechanism of this utility model.
[0020] In the diagram: 1. Winding machine; 2. Turntable; 3. Winding plate; 4. Core; 5. Pressing mechanism; 501. Fixing plate; 502. First motor; 503. Rotating shaft; 504. Pressing roller; 6. Adjusting mechanism; 601. Moving frame; 602. Sliding plate; 603. Spring; 7. Lifting mechanism; 701. Fixing frame; 702. Second motor; 703. Threaded shaft; 704. Threaded sleeve; 705. Slider; 8. Negative electrode sheet; 9. Diaphragm; 10. Positive electrode sheet. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Example 1: Please refer to Figure 1 and Figure 2 This utility model provides a technical solution:
[0023] A fully automated winding device for lithium battery production includes a winding machine 1, a turntable 2, and a winding plate 3;
[0024] The inside of the winding machine 1 is internally provided with a rotating disc 2, the inside of the rotating disc 2 is internally provided with winding plates 3 arranged symmetrically, the outside of the winding plate 3 on one side is provided with a winding core 4, and the winding core 4 on one side is provided with a negative electrode tab 8, a diaphragm 9 and a positive electrode tab 10;
[0025] The lower part of the winding plate 3 on the other side is provided with a lifting mechanism 7, and the outside of the lifting mechanism 7 is fixedly connected with the winding machine 1, the top of the lifting mechanism 7 is fixedly connected with an adjusting mechanism 6, and the inside of the adjusting mechanism 6 is fixedly connected with a close contact mechanism 5;
[0026] The close contact mechanism 5 comprises a fixed plate 501, a first motor 502 and a rotating shaft 503, the bottom of the fixed plate 501 is fixedly connected with the adjusting mechanism 6, the rear side of the fixed plate 501 on the rear side is fixedly connected with the first motor 502, and the main shaft end of the first motor 502 is fixedly connected with the rotating shaft 503, the other end of the rotating shaft 503 is rotatably connected with the fixed plate 501, and the outside of the rotating shaft 503 is fixedly connected with a close contact roller 504.
[0027] The outside of the close contact roller 504 is provided with a plurality of arc surfaces.
[0028] The adjusting mechanism 6 comprises a moving frame 601, a sliding plate 602 and a spring 603, the bottom of the moving frame 601 is fixedly connected with the lifting mechanism 7, the inside of the moving frame 601 is slidably connected with the sliding plate 602, the top of the sliding plate 602 is fixedly connected with the fixed plate 501, the bottom of the sliding plate 602 is fixedly connected with the spring 603, and the bottom of the spring 603 is fixedly connected with the moving frame 601.
[0029] The prior art winding machine for lithium battery is used for making an oval battery core, the negative electrode tab, the diaphragm and the positive electrode tab are fixed by the winding plate, then the winding core is rotated at high speed, the cutting is needed after the winding is completed, a certain length of the positive and negative electrode tabs and the diaphragm are reserved, and subsequent continuous winding is needed, the prior art is that an arc-shaped part is in contact with the outside of the winding core to ensure that the winding core is tightly contacted, since the surface of the winding core is arc-shaped, the surface cannot be in contact with the arc-shaped part on the outside at all times when rotating, and the problem of loose winding core exists, when the power supply is connected in use, the surface of the close contact roller 504 is provided with a plurality of arc surfaces, and each arc surface is in contact with 1 / 2 arc surface of the winding core 4 on the outside of the winding plate 3, so that the purpose of stable extrusion is achieved, and the spring 603 can support the movement of the sliding plate 602, the sliding plate 602 drives the fixed plate 501 to move, so that the close contact roller 504 can move up and down to a certain extent, the winding core 4 is always in close contact with the surface of the close contact roller 504, and the winding quality of the winding core 4 is ensured;
[0030] In this embodiment, when the length of the positive and negative plates and the diaphragm reserved for cutting is continuously wound, the winding plate 3 is rotated, the first motor 502 drives the rotating shaft 503 to rotate, the rotating shaft 503 drives the close-rolling roller 504 to rotate, the arc surface on the outer side of the close-rolling roller 504 is in close contact with the winding core 4 on the outer side of the winding plate 3, and at this time, the material of the winding core 4 is prevented from being loose.
[0031] Embodiment 2: This embodiment is an improvement on embodiment 1, please refer to Figure 3 , specifically, the lifting mechanism 7 comprises a fixed frame 701, a second motor 702 and a threaded shaft 703, the outer side of the fixed frame 701 is fixedly connected with the winding machine 1, the inside of the fixed frame 701 is fixedly connected with the second motor 702, the tail end of the main shaft of the second motor 702 is fixedly connected with the threaded shaft 703, the outer side of the threaded shaft 703 is spirally connected with a threaded sleeve 704, and the top of the threaded sleeve 704 is fixedly connected with the adjusting mechanism 6.
[0032] The outer side of the threaded sleeve 704 is provided with a sliding groove, and the threaded sleeve 704 is slidably connected with a sliding block 705 through the sliding groove, and the outer side of the sliding block 705 is fixedly connected with the fixed frame 701.
[0033] When the rotating disc 2 rotates, the second motor 702 is started to drive the threaded shaft 703 to rotate, the threaded shaft 703 drives the threaded sleeve 704 to move downward, at this time, the threaded sleeve 704 drives the adjusting mechanism 6 and the close-rolling mechanism 5 to move downward, avoiding the influence of the close-rolling mechanism 5 on the rotation of the winding plate 3, and ensuring that it can be used normally, and the sliding block 705 can ensure that the threaded sleeve 704 moves downward stably.
[0034] It should be noted that in this document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.
[0035] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A full-automatic winding device for lithium battery production, comprising a winding machine (1), a turntable (2) and winding plates (3); The winding machine (1) is internally provided with the turntable (2), the turntable (2) is internally provided with the winding plates (3) arranged in symmetry, the outer side of the winding plate (3) on one side is provided with a winding core (4), and the winding core (4) is provided with a negative electrode sheet (8), a diaphragm (9) and a positive electrode sheet (10) on one side; characterized in that The lower side of the winding plate (3) on the other side is provided with a lifting mechanism (7), the outer side of the lifting mechanism (7) is fixedly connected with the winding machine (1), the top of the lifting mechanism (7) is fixedly connected with an adjusting mechanism (6), and the inner side of the adjusting mechanism (6) is fixedly connected with a close contact mechanism (5); The close contact mechanism (5) comprises a fixed plate (501), a first motor (502) and a rotating shaft (503), the bottom of the fixed plate (501) is fixedly connected with the adjusting mechanism (6), the rear side of the fixed plate (501) is fixedly connected with the first motor (502), and the main shaft end of the first motor (502) is fixedly connected with the rotating shaft (503), the other end of the rotating shaft (503) is rotatably connected with the fixed plate (501), and the outer side of the rotating shaft (503) is fixedly connected with a close contact roller (504).
2. The full-automatic winding device for lithium battery production according to claim 1, characterized in that: The outer side of the close contact roller (504) is provided with a plurality of arc surfaces.
3. The full-automatic winding device for lithium battery production according to claim 1, characterized in that: The adjusting mechanism (6) comprises a moving frame (601), a sliding plate (602) and a spring (603), the bottom of the moving frame (601) is fixedly connected with the lifting mechanism (7), the inner side of the moving frame (601) is slidably connected with the sliding plate (602), the top of the sliding plate (602) is fixedly connected with the fixed plate (501), the bottom of the sliding plate (602) is fixedly connected with the spring (603), and the bottom of the spring (603) is fixedly connected with the moving frame (601).
4. The full-automatic winding device for lithium battery production according to claim 1, characterized in that: The lifting mechanism (7) comprises a fixed frame (701), a second motor (702) and a threaded shaft (703), the outer side of the fixed frame (701) is fixedly connected with the winding machine (1), the inner side of the fixed frame (701) is fixedly connected with the second motor (702), the main shaft end of the second motor (702) is fixedly connected with the threaded shaft (703), the outer side of the threaded shaft (703) is spirally connected with a threaded sleeve (704), and the top of the threaded sleeve (704) is fixedly connected with the adjusting mechanism (6).
5. The full-automatic winding device for lithium battery production according to claim 4, characterized in that: The outer side of the threaded sleeve (704) is provided with a sliding groove, and the threaded sleeve (704) is slidably connected with a sliding block (705) through the sliding groove, and the outer side of the sliding block (705) is fixedly connected with the fixed frame (701).