Lithium battery equipment single roll needle

Abstract

The utility model discloses a kind of single winding winding needle of lithium battery equipment, comprising: winding needle main body, by first winding body, second winding body and support, first winding body and second winding body are oppositely arranged and rear end part is connected with support, first winding body and second winding body between have the clearance for pole piece insertion, the front end of first winding body is equipped with first accommodating cavity with front end opening and clearance communication, first accommodating cavity is connected with first fixed shaft, the front end of second winding body is equipped with second accommodating cavity with front end opening and clearance communication, second accommodating cavity is connected with second fixed shaft;Rotary hook, one end of rotary hook is rotatably connected on second fixed shaft, the other end of rotary hook is equipped with with first fixed shaft corresponding hook groove;Transmission assembly, movably set in second winding body and with rotary hook transmission connection;Driving device, set in support and its driving end is connected with transmission assembly.The utility model can realize the quick clamping and loosening of pole piece, and support stability.

Description

Technical Field

[0001] This utility model relates to the technical field of lithium battery winding equipment, specifically to a single-winding needle for lithium battery equipment. Background Technology

[0002] Battery cells are an important component of lithium batteries. They are often processed by winding machines, and winding needles are the core components of the winding machines.

[0003] Existing winding needles typically include a support, a winding body, and an air-filled inflation assembly. Two winding bodies are configured, each connected to the support, with a gap between them. An air-filled inflation assembly is located on the side of each winding body that is close to the other. During winding, the electrode sheet extends into the gap between the two winding bodies, and the air-filled inflation assembly inflates to clamp the electrode sheet. After winding is complete, the air-filled inflation assembly deflates, restoring its deformation and releasing the electrode sheet.

[0004] During the process of clamping the electrode sheet with the airbag expansion assembly, the airbag expansion assembly needs to be inflated. During the process of releasing the electrode sheet, the airbag expansion assembly needs to be deflated. The inflation and deflation process takes a relatively long time, resulting in a slow response speed of the airbag expansion assembly, which affects the production capacity of the battery cell and has the disadvantage of unstable support. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a single-roller needle for lithium battery equipment, which can quickly clamp and release the electrode sheets and provide stable support.

[0006] The technical solution of this utility model is as follows:

[0007] A single roll of winding needle for a lithium battery device, comprising:

[0008] The main body of the coiling needle consists of a first coil, a second coil, and a support. The first and second coils are arranged vertically opposite each other and their rear ends are connected to the support. There is a gap between the first and second coils for inserting electrode sheets. The front end of the first coil is provided with a first receiving cavity with a front opening and communicating with the gap. A first fixed shaft is connected in the first receiving cavity. The front end of the second coil is provided with a second receiving cavity with a front opening and communicating with the gap. A second fixed shaft is connected in the second receiving cavity.

[0009] A rotating hook, one end of which is rotatably connected to the second fixed shaft, and the other end of which has a hook groove corresponding to the first fixed shaft;

[0010] A transmission assembly, which is movably disposed in the second roll body and is connected in a transmission manner to the rotating hook;

[0011] A drive unit is disposed in the support and its drive end is connected to the transmission assembly.

[0012] Furthermore, one end of the rotating hook is provided with gear teeth, and the transmission component engages with the rotating hook through a rack for transmission.

[0013] Furthermore, the transmission assembly includes a first connecting rod, a second connecting rod, and a rack. One end of the first connecting rod is connected to the drive end of the drive device, and the other end of the first connecting rod is connected to one end of the second connecting rod via a position adjusting bolt. The other end of the second connecting rod is connected to the rack.

[0014] Furthermore, a waist-shaped groove is provided in the middle of the rack, and guide shafts are provided in the second roll body at the positions corresponding to the waist-shaped groove. The rack is movably mounted on the guide shaft through the waist-shaped groove.

[0015] Furthermore, the driving device is a cylinder, which is equipped with a straight head and an elbow, and the support is equipped with an air hole for connecting an air pipe.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a first receiving cavity at the front end of the first roll body, in which a first fixed shaft is connected; a second receiving cavity at the front end of the second roll body, in which a second fixed shaft is connected; a rotating hook is rotatably connected to the second fixed shaft; the other end of the rotating hook is provided with a hook groove corresponding to the first fixed shaft; a transmission component is provided in the second roll body; and a driving device is provided in the support. The driving device drives the rotating hook to rotate and hook onto or release the first fixed shaft through the transmission component, thereby achieving rapid clamping and releasing of the electrode sheet, and providing stable support. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a single-roller needle for a lithium battery device provided by this utility model. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] To illustrate the technical solution described in this utility model, specific embodiments are described below.

[0021] Example

[0022] Please see Figure 1 This embodiment provides a single-coil winding needle for a lithium battery device, including a winding needle body 1, a rotating hook 2, a transmission component 3, and a driving device 4.

[0023] in:

[0024] The main body 1 of the needle winding consists of a first winding body 11, a second winding body 12 and a support 13. The first winding body 11 and the second winding body 12 are arranged opposite each other and their rear ends are connected to the support 13. There is a gap between the first winding body 11 and the second winding body 12 for inserting the electrode sheet.

[0025] The first roll body 11 has a first receiving cavity 111 with a front opening and a gap communicating with it. A first fixed shaft 5 is connected to the first receiving cavity 111. The second roll body 12 has a second receiving cavity 121 with a front opening and a gap communicating with it. A second fixed shaft 6 is connected to the second receiving cavity 121. One end of the rotating hook 2 is rotatably connected to the second fixed shaft 6 via a rotating washer 7. The other end of the rotating hook 2 has a hook groove 21 corresponding to the first fixed shaft 5. The rotating hook 2 can be adjusted in installation position and reduce rotational friction by rotating the washer 7. By hooking the first fixed shaft 5 through the hook groove 21, it can be ensured that the two ends of the winding needle will not be misaligned due to the tension generated by winding the battery core during operation.

[0026] The transmission assembly 3 is movably disposed in the second roll 12 and is connected to the rotating hook 2. Specifically, it includes a first connecting rod 31, a second connecting rod 32, and a rack 33. One end of the first connecting rod 31 is connected to the driving end of the driving device 4. The other end of the first connecting rod 31 is connected to one end of the second connecting rod 32 through a position adjusting bolt 8. The other end of the second connecting rod 32 is connected to the rack 33. A waist-shaped groove 331 is provided in the middle of the rack 33. Guide shafts 9 are provided in the second roll 12 at the positions corresponding to the waist-shaped groove 331. The rack 33 is movably disposed on the guide shaft 9 through the waist-shaped groove 331. One end of the rotating hook 2 is provided with gear teeth 22. The transmission assembly 3 is driven by meshing with the rotating hook 2 through the rack 33. The first connecting rod 31 and the second connecting rod 32 transmit power through the driving device 4; the second connecting rod 32 moves and is limited by the front and rear guide shafts 9 under the action of the waist-shaped groove 331, ensuring that the front and rear movement direction of the rack 33 does not deviate; the second connecting rod 32 can be adjusted in position by combining with the position adjusting bolt 8 to realize the working stroke limit of the rotating hook 2.

[0027] The drive device 4 is installed in the support 13 and its drive end is connected to the transmission assembly 3. In this embodiment, the drive device 4 is a cylinder. The cylinder is provided with a straight head 41 and a bent head 42. The support 13 is provided with an air hole 131 for connecting the air pipe.

[0028] Its working principle is as follows:

[0029] The single roll extends, causing the battery cell electrode to move to the corresponding position of the single roll assembly. Once in position, the cylinder vents air to transmit power, causing the rack 33 to move forward. The rack 33 drives the rotating hook 2 to rotate counterclockwise until the rotating hook 2 hooks the first fixed shaft 5, thus ensuring that the two ends of the winding needle will not be misaligned due to the tension generated by winding the battery cell. After completion, the winding needle begins to rotate and wind the battery cell. After winding is completed, the cylinder retracts, causing the rotating hook 2 to rotate clockwise to make room. Finally, the wound electrode is removed.

[0030] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A single-roll winding needle for a lithium battery device, characterized in that, include: The main body of the coiling needle consists of a first coil, a second coil, and a support. The first and second coils are arranged vertically opposite each other and their rear ends are connected to the support. There is a gap between the first and second coils for inserting electrode sheets. The front end of the first coil is provided with a first receiving cavity with a front opening and communicating with the gap. A first fixed shaft is connected in the first receiving cavity. The front end of the second coil is provided with a second receiving cavity with a front opening and communicating with the gap. A second fixed shaft is connected in the second receiving cavity. A rotating hook, one end of which is rotatably connected to the second fixed shaft, and the other end of which has a hook groove corresponding to the first fixed shaft; A transmission assembly, which is movably disposed in the second roll body and is connected in a transmission manner to the rotating hook; A drive unit is disposed in the support and its drive end is connected to the transmission assembly.

2. The single-roll winding needle for a lithium battery device according to claim 1, characterized in that: One end of the rotating hook is provided with gear teeth, and the transmission component engages with the rotating hook through a rack for transmission.

3. The single-roll winding needle for a lithium battery device according to claim 2, characterized in that: The transmission assembly includes a first connecting rod, a second connecting rod, and a rack. One end of the first connecting rod is connected to the drive end of the drive device, and the other end of the first connecting rod is connected to one end of the second connecting rod via a position adjusting bolt. The other end of the second connecting rod is connected to the rack.

4. A single-roll winding needle for a lithium battery device according to claim 3, characterized in that: The rack has a waist-shaped groove in the middle, and the second roll body has guide shafts arranged in front and behind the waist-shaped groove. The rack is movably mounted on the guide shaft through the waist-shaped groove.

5. A single-roll winding needle for a lithium battery device according to claim 1, characterized in that: The driving device is a cylinder, which is equipped with a straight head and an elbow, and the support is equipped with an air hole for connecting an air pipe.

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