Winding needle mechanism of new energy lithium battery winding machine

Abstract

The utility model relates to the technical field of new energy lithium battery winding machine components, and discloses a winding needle mechanism of a new energy lithium battery winding machine, which comprises a rotating mechanism, a winding needle main body is mounted on the outer side of the rotating mechanism, the rotating mechanism comprises a rotating seat, and a through groove is formed in the middle of the rotating seat. Two gears are symmetrically and rotationally installed at the front end in the through groove, and the two sides of the outer side walls of the upper end and the lower end of the rotating base are each provided with a sliding groove. The manual auxiliary dismounting mechanism is arranged at the front end of the rotating seat, that is, the through groove is formed in the middle of the rotating seat, the two gears are symmetrically and rotationally installed at the front end in the through groove, the winding needle bodies are assembled on the two sides of the rotating seat in a sliding mode, and the tooth-shaped grooves are formed in the opposite ends of the two winding needle bodies. And the winding needle main bodies are in meshed connection with the gears on the corresponding sides, so that when the two winding needle main bodies are disassembled, the winding needle main bodies on the two sides can be conveniently disassembled only by manually rotating the two gears, and the labor intensity is further reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of new energy lithium battery winding machine components, specifically a winding needle mechanism for a new energy lithium battery winding machine. Background Technology

[0002] The winding needle mechanism of a new energy lithium battery winding machine is the core component for winding electrodes and separators. It typically comes in various shapes and sizes to accommodate the production of lithium battery cells of different specifications. For example, cylindrical winding needles are used to produce cylindrical lithium battery cells, while square winding needles are used for square lithium battery cells. Some winding needle mechanisms employ adjustable needle bodies, allowing adjustment of the needle's diameter or shape via mechanical structures or hydraulic devices to meet different product requirements.

[0003] The existing needle winding mechanism of new energy lithium battery winding machine still has the following problems when in use: When using the needle winding mechanism, the needle body needs to be disassembled and assembled on the rotating seat. Since the needle body is often slidably fitted on the rotating seat, it is not convenient to manually pull it off the rotating seat. After such frequent disassembly and assembly of the needle body, the labor intensity is high and the production efficiency is low. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a winding needle mechanism for a new energy lithium battery winding machine, which solves the problems mentioned in the background technology.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a winding needle mechanism for a new energy lithium battery winding machine, comprising a rotating mechanism, a winding needle body mounted on the outer side of the rotating mechanism, the rotating mechanism including a rotating seat, a through groove in the middle of the rotating seat, two gears symmetrically mounted at the front end of the through groove, a sliding groove on each side of the outer wall at both ends of the rotating seat, the winding needle body including a needle body slidably connected to the openings at both ends of the through groove, the two needle bodies being symmetrically arranged, and a toothed groove for meshing with the gears on their corresponding sides being opened at one end of the two needle bodies, a groove for the two gears to be exposed at the middle position of the front end of the rotating seat, a central shaft being fixedly mounted in the central hole of the gear, and mating holes for the central shaft to be rotatably assembled at both ends of the inner wall of the through groove.

[0008] As a further embodiment of this utility model: the upper and lower end faces of the two needle bodies on opposite sides are inclined, and a set of protruding blocks are fixedly connected to the outer surface of the end faces. The set of protruding blocks consists of multiple blocks and is arranged at equal intervals from front to back.

[0009] As a further embodiment of this utility model: a slit groove is provided in the middle of one end of two needle bodies, and a limiting seat is fixedly connected to each of the upper and lower ends of the needle body. The two limiting seats on the same side are arranged symmetrically, and the limiting seats are slidably connected in the groove on their corresponding side.

[0010] As a further embodiment of this utility model: a fixed seat is fixedly connected to the rear end of the rotating seat, the rear end of the coiling needle body slides against the front end of the fixed seat, and a connecting seat is fixedly connected to the center position of the rear end of the fixed seat.

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

[0012] 1. In this utility model, a manual auxiliary disassembly mechanism is provided at the front end of the rotating seat. Specifically, a through groove is provided in the middle of the rotating seat, and two gears are symmetrically mounted at the front end of the through groove. The two needle coil bodies are slidably assembled on both sides of the rotating seat. Each of the two needle coil bodies has a toothed groove at one end facing each other, and the needle coil body is meshed with the gear on its corresponding side. When disassembling the two needle coil bodies, only the two gears need to be manually rotated to achieve convenient disassembly of the needle coil bodies on both sides, thereby reducing labor intensity.

[0013] 2. In this utility model, a protruding block mechanism is provided at the upper and lower end faces of the needle body of the needle winding body. That is, a set of protruding blocks is fixedly connected to each of the upper and lower inclined end faces of the needle body. There are multiple protruding blocks in a set and they are arranged at equal distances from front to back. When the needle winding structure winds the diaphragm, it can reduce the contact area between the needle winding structure and the diaphragm, thereby making it easier to remove the needle body and reducing the probability of the wound diaphragm being brought out when removing the needle body. Attached Figure Description

[0014] Figure 1 The overall three-dimensional structure of this utility model Figure 1 ;

[0015] Figure 2 The overall three-dimensional structure of this utility model Figure 2 ;

[0016] Figure 3 This is a perspective view of the rotating mechanism of this utility model;

[0017] Figure 4 This is a three-dimensional view of the main body of the coiling needle of this utility model.

[0018] In the diagram: 1. Rotating mechanism; 2. Needle coiling body; 11. Fixed seat; 12. Connecting seat; 13. Rotating seat; 14. Slide groove; 15. Groove; 16. Mating hole; 17. Gear; 21. Needle body; 22. Gap groove; 23. Protruding block; 24. Limiting seat. Detailed Implementation

[0019] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0020] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Please see Figures 1-4In this embodiment of the present invention, a winding needle mechanism of a new energy lithium battery winding machine includes a rotating mechanism 1, a winding needle body 2 mounted on the outside of the rotating mechanism 1, the rotating mechanism 1 including a rotating seat 13, a through groove in the middle of the rotating seat 13, two gears 17 symmetrically mounted at the front end of the through groove, a sliding groove 14 on each side of the outer side wall at the upper and lower ends of the rotating seat 13, the winding needle body 2 including a needle body 21 slidably connected to the openings at both ends of the through groove, the two needle bodies 21 being symmetrically arranged, and each needle body 21 having a toothed groove at one end facing each other for meshing with the gear 17 on its corresponding side, and a recessed area at the middle of the front end of the rotating seat 13 for the two gears 17 to be exposed. A central shaft is fixedly installed in the central hole of the slot 15 and gear 17. The upper and lower ends of the inner side wall of the slot are provided with mating holes 16 for the central shaft to rotate and assemble. The entire assembly is provided with a manual auxiliary disassembly mechanism at the front end of the rotating seat 13. That is, a through slot is provided in the middle of the rotating seat 13, and two gears 17 are symmetrically rotatably installed in the front end of the through slot. The two needle coil bodies 2 are slidably assembled on both sides of the rotating seat 13. Each of the two needle coil bodies 2 has a toothed groove at one end facing each other, and the needle coil body 2 is meshed with the gear 17 on its corresponding side. When disassembling the two needle coil bodies 2, only the two gears 17 need to be manually rotated to achieve convenient disassembly of the two needle coil bodies 2, thereby reducing the labor intensity.

[0023] The upper and lower end faces of the two needle bodies 21 on opposite sides are inclined. A set of protruding blocks 23 are fixedly connected to the outer surface of the end faces. There are multiple protruding blocks 23 arranged at equal distances from front to back. The upper and lower end faces of the needle body 21 of the needle body 2 are provided with a protruding block 23 mechanism. That is, each of the upper and lower inclined end faces of the needle body 21 is fixedly connected with a set of protruding blocks 23. There are multiple protruding blocks 23 arranged at equal distances from front to back. When the needle body 21 is wound around the diaphragm, it can reduce the contact area between the needle body 21 and the diaphragm, thereby making it easier to remove the needle body 21 and reducing the probability of the wound diaphragm being brought out when removing the needle body 21.

[0024] Two needle bodies 21 are separated by a slot 22 at one end. Each of the upper and lower ends of the needle body 21 is fixedly connected to a limiting seat 24. The two limiting seats 24 on the same side are arranged symmetrically, and the limiting seats 24 are slidably connected in the corresponding groove 14. The limiting seats 24 play a limiting role in the installation of the needle coil body 2, thereby improving the installation stability of the needle coil body 2 on the rotating seat 13.

[0025] The rear end of the rotating seat 13 is fixedly connected to the fixed seat 11. The rear end of the winding needle body 2 slides against the front end of the fixed seat 11. The center of the rear end of the fixed seat 11 is fixedly connected to the connecting seat 12, which can be connected to the drive shaft of the new energy lithium battery winding machine to drive the entire winding needle mechanism to rotate.

[0026] The working principle of this utility model is as follows: It can be connected to the drive shaft of the new energy lithium battery winding machine via the connecting seat 12, driving the overall winding needle mechanism to rotate and perform the winding needle mechanism work. The positive and negative electrode sheets are fed into the corresponding clamping groove 22 of the winding needle at a certain speed under the clamping of the electrode sheet feeding mechanism. The winding needle mechanism needs to match the speed and angle with the electrode sheet feeding mechanism and the separator unwinding mechanism to ensure that the electrode sheet and separator can be accurately wound on the winding needle. After the pre-winding is completed, the electrode sheet is tightly wrapped by the separator, and the winding needle starts to rotate continuously to realize the continuous winding of the electrode sheet and separator. During this process, the winding needle mechanism needs to maintain a stable rotation speed and tension control. By detecting the tension of the material roll, the feeding speed of the electrode sheet unwinding motor is adjusted to keep the tension of the material roll constant during the winding process. After the winding is completed, the winding needle needs to be pulled out from the wound cell. The winding needle mechanism uses a specific control method, such as motor reversal or reverse movement of mechanical device, to make the winding needle smoothly pulled out from the cell to avoid damage to the cell.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A new energy lithium battery winding machine's winding needle mechanism, comprising a rotating mechanism (1), the rotating mechanism (1) outside is installed with winding needle body (2); characterized in that The rotating mechanism (1) comprises a rotating seat (13), a through slot is formed in the middle part of the rotating seat (13), two gears (17) are symmetrically rotatably installed in the front end of the through slot, and a sliding slot (14) is formed on the outer side wall of the upper and lower ends of the rotating seat (13). Two sides. The winding needle body (2) comprises a needle body (21) slidably connected to the opening of the through slot at both ends, two needle bodies (21) are symmetrically arranged, and tooth-shaped grooves are formed in the facing end of the two needle bodies (21) for meshing connection with the corresponding one side gear (17). The upper and lower end faces of the two needle bodies (21) away from each other are arranged in an inclined manner, and a group of protruding blocks (23) are fixedly connected to the outer surface of the end face.

2. The winding needle mechanism of the new energy lithium battery winding machine according to claim 1, characterized in that: Two needle bodies (21) are symmetrically arranged on the same side, and a group of protruding blocks (23) are arranged at equal distances from front to back.

3. The winding needle mechanism of the new energy lithium battery winding machine according to claim 1, characterized in that: The middle part of the end of the two needle bodies (21) away from each other is provided with a clamping slot (22).

4. The winding needle mechanism of the new energy lithium battery winding machine according to claim 3, characterized in that: The upper and lower ends of the needle body (21) are each fixedly connected with a limiting clamp seat (24).

5. The winding needle mechanism of the new energy lithium battery winding machine according to claim 1, characterized in that: The two limiting clamp seats (24) on the same side are arranged in an upper and lower symmetrical manner, and the limiting clamp seat (24) is slidably connected in the sliding slot (14) on the corresponding side.

6. The winding needle mechanism of the new energy lithium battery winding machine according to claim 1, characterized in that: The front end of the rotating seat (13) is provided with a recess (15) for exposing the two gears (17).

7. The winding needle mechanism of the new energy lithium battery winding machine according to claim 1, characterized in that: The center hole of the gear (17) is fixedly sleeved with a center shaft, and the inner side wall of the through slot is provided with a matching hole (16) at the upper and lower ends for rotating assembly of the center shaft. The rear end of the rotating seat (13) is fixedly connected with a fixed seat (11), the rear end of the winding needle body (2) is slidably attached to the front end of the fixed seat (11), and the rear end of the fixed seat (11) is fixedly connected with a connecting seat (12).

Images