Continuous winding needle structure for winding diaphragm

Abstract

The utility model discloses a continuous winding needle structure for winding a diaphragm, which relates to the technical field of lithium battery production equipment and comprises a winding needle body, a diaphragm cutter component, an adsorption mechanism and a pressing mechanism, a mounting groove is arranged on the side wall of the winding needle body, the pressing mechanism is movably mounted in the mounting groove, the diaphragm cutter component is arranged on the pressing mechanism in a liftable manner, and the adsorption mechanism is arranged on the diaphragm cutter component. An adsorption mechanism is arranged on one side of the mounting groove and used for adsorbing the diaphragm. According to the winding needle, the mounting groove is formed in the winding needle body, and the diaphragm cutter assembly, the adsorption mechanism and the pressing mechanism are all arranged in the mounting groove, so that the diaphragm cutter assembly, the adsorption mechanism and the pressing mechanism can synchronously rotate along with the winding needle body, a diaphragm can be cut from the interior of the winding needle body, and a cutting mechanism does not need to be additionally arranged outside; therefore, the winding needle body can cut off the diaphragm without reducing the speed or stopping working, and the working efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery production equipment, in particular to a continuous winding needle structure for a winding diaphragm. Background Art

[0002] In the production of power lithium batteries and energy storage lithium batteries, the winding process is an extremely important process; with the continuous development of the industry and the demand for cost reduction and efficiency improvement of lithium batteries, the efficiency requirements for winding equipment are getting higher and higher, and it is imperative to improve the efficiency of winding equipment.

[0003] In all current lithium battery production equipment, the diaphragm needs to be wound by a winding needle to form a winding core. After the winding core is formed, it is switched to the next winding needle for the start of winding. The existing winding needle switching process has the following ways to switch the diaphragm: 1. The winding needle in the waiting position extends out and clamps the diaphragm before rolling; 2. The diaphragm continuous cutting and switching is achieved through the air holes on the winding needle and the static electricity of the diaphragm; 3. After the diaphragm is cut by an external cutting mechanism, the winding needle clamps the diaphragm and starts rolling. However, the winding needle in the above three methods will slow down or stop to a certain extent, and cannot completely cut the diaphragm without slowing down, which affects the efficiency improvement. Utility Model Content

[0004] The utility model aims to provide a continuous needle winding structure for a wound diaphragm, so as to solve the above-mentioned technical problems.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A continuous winding needle structure for winding a diaphragm comprises a winding needle body, a diaphragm cutter assembly, an adsorption mechanism and a clamping mechanism. A mounting groove is provided on the side wall of the winding needle body, the clamping mechanism is movably installed in the mounting groove, the diaphragm cutter assembly is movably arranged on the clamping mechanism, and the adsorption mechanism is provided on one side of the mounting groove for adsorbing the diaphragm.

[0007] Preferably, the adsorption mechanism includes adsorption holes opened on the lower inner wall and one side inner wall of the installation groove.

[0008] Preferably, the clamping mechanism comprises a diaphragm pressing block, a slider and a slide rail, the slide rail is provided on the lower inner wall of the mounting groove, the slider is provided on the slide rail, and the diaphragm pressing block is connected to the slider.

[0009] As a further preference, it also includes a clamping motor, which is installed on the inner wall on the other side of the installation groove, and the output end of the clamping motor is connected to the diaphragm pressing block.

[0010] As a further preference, the diaphragm cutter assembly comprises a cutter and a base installed at the lower end of the cutter, and the base is liftably arranged at the upper end of the diaphragm pressing block.

[0011] As a further preference, it further comprises a guide column, the upper end of the diaphragm pressing block is provided with the guide column, the base is provided with a guide hole, and the guide column is arranged in the guide hole.

[0012] As a further preference, it further comprises a motor, a notch is provided on the diaphragm pressing block, the motor is arranged in the notch, and an output end of the motor is connected to the base.

[0013] As a further preference, a plurality of the adsorption holes are arranged along the axial direction of the winding needle body.

[0014] As a further preference, the base is overall L-shaped.

[0015] The above technical solution has the following advantages or beneficial effects:

[0016] In the utility model, a mounting groove is opened on the winding needle body, and the diaphragm cutter assembly, the adsorption mechanism and the clamping mechanism are all arranged in the mounting groove, so that the diaphragm cutter assembly, the adsorption mechanism and the clamping mechanism can rotate synchronously with the winding needle body, and the diaphragm can be cut from the inside of the winding needle body without setting up a cutting mechanism on the outside, so that the winding needle body can cut the diaphragm without slowing down or stopping working, thereby effectively improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the continuous needle winding structure of the wound diaphragm in the utility model;

[0018] Figure 2 This is a front view of the continuous needle winding structure of the wound diaphragm in the utility model;

[0019] Figure 3 It is a top view of the continuous winding needle structure of the winding diaphragm in the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the clamping mechanism and the diaphragm cutter assembly in the utility model. Figure 1 ;

[0021] Figure 5 This is a schematic diagram of the structure of the clamping mechanism and the diaphragm cutter assembly in the utility model. Figure 2 ;

[0022] Figure 6 This is a usage state diagram of the continuous needle winding structure of the wound diaphragm in the utility model.

[0023] In the figure: 1. needle winding body; 101. mounting groove; 2. diaphragm cutter assembly; 201. cutter; 202. base; 203. guide column; 204. motor; 3. adsorption mechanism; 301. adsorption hole; 4. clamping mechanism; 401. diaphragm pressing block; 402. slide rail; 403. clamping motor; 404. notch; 5. diaphragm. DETAILED DESCRIPTION

[0024] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0025] In the description of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, if the terms "first", "second", "third" appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it 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 invention can be understood according to specific circumstances.

[0027] Figure 1 It is a structural schematic diagram of the continuous needle winding structure of the wound diaphragm in the utility model; Figure 2 This is a front view of the continuous needle winding structure of the wound diaphragm in the utility model; Figure 3 It is a top view of the continuous winding needle structure of the winding diaphragm in the utility model; Figure 4 This is a schematic diagram of the structure of the clamping mechanism and the diaphragm cutter assembly in the utility model. Figure 1 ; Figure 5 This is a schematic diagram of the structure of the clamping mechanism and the diaphragm cutter assembly in the utility model. Figure 2 ; Figure 6This is a diagram of the use status of the continuous winding needle structure of the winding diaphragm in the utility model, please refer to Figures 1 to 6 As shown, a preferred embodiment is shown, which shows a continuous winding needle structure for winding membrane, including a winding needle body 1, a membrane cutter assembly 2, an adsorption mechanism 3 and a clamping mechanism 4. A mounting groove 101 is provided on the side wall of the winding needle body 1, and the clamping mechanism 4 is movably installed in the mounting groove 101. The membrane cutter assembly 2 can be lifted and lowered on the clamping mechanism 4. An adsorption mechanism 3 is provided on one side of the mounting groove 101 for adsorbing the membrane 5. In this embodiment, see Figure 1 As shown, a mounting groove 101 is provided on one side of the winding needle body 1, and the diaphragm cutter assembly 2, the adsorption mechanism 3 and the pressing mechanism 4 are all arranged in the mounting groove 101, so that the diaphragm cutter assembly 2, the adsorption mechanism 3 and the pressing mechanism 4 are arranged inside, and the diaphragm 5 can be cut from the inside of the winding needle body 1, without the need to set up a cutting mechanism outside. Moreover, since the diaphragm cutter assembly 2, the adsorption mechanism 3 and the pressing mechanism 4 are all arranged in the mounting groove 101, they can rotate synchronously with the winding needle body 1, and the diaphragm 5 can be cut without stopping or slowing down the winding needle body 1. The diaphragm cutter assembly 2 is used to cut the diaphragm 5, and the adsorption mechanism 3 is used to adsorb the diaphragm 5, provide a force for the diaphragm 5 in the direction of the inside of the mounting groove 101, and cooperate with the diaphragm cutter assembly 2 to facilitate cutting of the diaphragm 5. The pressing mechanism 4 is used to press the diaphragm 5, so that after the diaphragm 5 is cut, one end of the diaphragm 5 can be clamped in the mounting groove 101, which is convenient for the winding needle body 1 to rotate and wind the diaphragm 5.

[0028] Further, as a preferred embodiment, the adsorption mechanism 3 includes an adsorption hole 301 opened on the lower inner wall and one inner wall of the mounting groove 101. In this embodiment, the interior of the winding needle body 1 can be hollow or an air flow channel can be provided inside the winding needle body 1 to communicate with the adsorption hole 301, and the air flow channel can be connected to an external vacuum pump to provide negative pressure to the adsorption hole 301, so as to facilitate the adsorption of the diaphragm 5. When the adsorption hole 301 generates negative pressure, a slight force can be provided for the diaphragm 5 to enter the mounting groove 101, so as to ensure that after the diaphragm 5 is cut off, one end of the diaphragm 5 can enter the mounting groove 101 and cover the adsorption hole 301.

[0029] Further, as a preferred embodiment, the clamping mechanism 4 includes a diaphragm block 401, a slider and a slide rail 402. The slide rail 402 is provided on the lower inner wall of the mounting groove 101, and the slider is provided on the slide rail 402. The diaphragm block 401 is connected to the slider. It also includes a clamping motor 403. The clamping motor 403 is installed on the inner wall of the other side of the mounting groove 101, and the output end of the clamping motor 403 is connected to the diaphragm block 401. The clamping motor 403 can drive the diaphragm block 401 to slide. The slider can be slidably arranged on the slide rail 402, and the diaphragm block 401 is provided at the upper end of the slider. The clamping motor 403 drives the diaphragm block 401 to move, which can squeeze the diaphragm 5, so that the diaphragm 5 is squeezed at the adsorption hole 301, and the vacuum pump can stop working at this time.

[0030] Further, as a preferred embodiment, the diaphragm cutter assembly 2 includes a cutter 201 and a base 202 installed at the lower end of the cutter 201, and the base 202 is arranged on the upper end of the diaphragm pressing block 401 in a liftable manner. The diaphragm cutter assembly 2 also includes a guide column 203 and a motor 204. The upper end of the diaphragm pressing block 401 is provided with a guide column 203, the base 202 is provided with a guide hole, and the guide column 203 is arranged in the guide hole. The diaphragm pressing block 401 is provided with a slot 404, and the slot 404 is provided with a motor 204, and the output end of the motor 204 is connected to the base 202. Among them, the motor 204 is fixed in the slot 404, see Figure 4 As shown, the motor 204 is a linear motor 204, which is used to drive the diaphragm pressing block 401 to move up and down. When the diaphragm pressing block 401 moves upward, it can drive the cutter 201 to move upward to achieve cutting of the diaphragm 5.

[0031] Further, as a preferred embodiment, a plurality of adsorption holes 301 are arranged along the axial direction of the winding needle body 1. Figure 3 As shown, a plurality of adsorption holes 301 are provided to generate negative pressure to adsorb the diaphragm 5 .

[0032] Further, as a preferred embodiment, the base 202 is configured in an L-shape as a whole. Figure 2 As shown, the base 202 is in an L-shaped structure, a guide hole is provided on one side of the base 202, a cutter 201 is provided on the other side of the base 202, and a guide column 203 is provided to extend into the guide hole to guide the up and down movement of the base 202, wherein a limiting protrusion may be provided on the upper end of the guide column 203 to prevent the base 202 from detaching from the guide column 203.

[0033] See also Figure 2As shown, the position of the diaphragm pressing block 401 facing the adsorption hole 301 adopts an arc transition, and the connection between the inner wall of one side of the installation groove 101 and the lower inner wall of the installation groove 101 adopts an arc transition to avoid wear of the diaphragm 5 when the diaphragm pressing block 401 squeezes the diaphragm 5.

[0034] During use, when the first winding core is completed, the adsorption mechanism 3 in the other winding needle body 1 starts to work, and the air intake of the adsorption hole 301 generates negative pressure, and then the motor 204 drives the base 202 to drive the cutter 201 to move upward to cut off the diaphragm 5. At this time, one end of the diaphragm 5 will enter the installation groove 101 under the adsorption of the adsorption hole 301 and fit on the surface of the adsorption hole 301, and the clamping motor 403 will drive the diaphragm pressing block 401 to move until it is against the inner wall of one side of the installation groove 101 to clamp the diaphragm 5, and then drive the winding needle body 1 to rotate, and wind the diaphragm 5 on the winding needle body 1 to form a winding core. After the winding is completed, repeat the above operation to complete the production of multiple winding cores.

[0035] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A continuous needle winding structure for a wound diaphragm, characterized in that: It includes a winding needle body, a diaphragm cutter assembly, an adsorption mechanism and a clamping mechanism. A mounting groove is provided on the side wall of the winding needle body. The clamping mechanism is movably installed in the mounting groove. The diaphragm cutter assembly can be raised and lowered on the clamping mechanism. The adsorption mechanism is provided on one side of the mounting groove for adsorbing the diaphragm.

2. The continuous needle winding structure of the wound diaphragm according to claim 1, characterized in that: The adsorption mechanism comprises adsorption holes which are arranged on the lower inner wall and one inner wall of the installation groove.

3. The continuous winding needle structure of the wound diaphragm according to claim 1, characterized in that: The clamping mechanism comprises a diaphragm pressing block, a sliding block and a sliding rail. The sliding rail is arranged on the lower inner wall of the mounting groove, the sliding block is arranged on the sliding rail, and the diaphragm pressing block is connected to the sliding block.

4. The continuous winding needle structure of the wound diaphragm according to claim 3, characterized in that: It also includes a clamping motor, which is installed on the inner wall of the other side of the installation groove, and the output end of the clamping motor is connected to the diaphragm pressing block.

5. The continuous winding needle structure of the wound diaphragm according to claim 3, characterized in that: The diaphragm cutter assembly comprises a cutter and a base installed at the lower end of the cutter, and the base is liftably arranged at the upper end of the diaphragm pressing block.

6. The wound diaphragm continuous winding needle structure according to claim 5, characterized in that: It also includes a guide column, the upper end of the diaphragm pressing block is provided with the guide column, the base is provided with a guide hole, and the guide column is arranged in the guide hole.

7. The continuous needle winding structure of the wound diaphragm according to claim 5, characterized in that: It also includes a motor. A notch is provided on the diaphragm pressing block. The motor is arranged in the notch. The output end of the motor is connected to the base.

8. The continuous winding needle structure of the wound diaphragm according to claim 2, characterized in that: A plurality of adsorption holes are arranged along the axial direction of the winding needle body.

9. The continuous winding needle structure of the wound diaphragm according to claim 5, characterized in that: The base is configured in an L shape as a whole.

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