Winding needle diaphragm surface cutting mechanism

Abstract

The utility model discloses a winding needle diaphragm surface cut-off mechanism which comprises a winding needle assembly and a cut-off assembly arranged on one side of the winding needle assembly, a diaphragm is arranged between the winding needle assembly and the cut-off assembly, the winding needle assembly comprises a movable outer needle, a fixed outer needle is arranged above the movable outer needle, and the fixed outer needle is arranged above the fixed outer needle. A movable inner needle is arranged at the bottom end of the interior of the fixed outer needle, a spring pressing plate facing the cutting assembly is arranged at the top end of the movable outer needle, and one end of the movable outer needle and one end of the fixed outer needle are jointly connected with a fixed seat; the cutting assembly comprises a base, a vertical plate is arranged on the side, facing the winding needle assembly, of the base, and a telescopic air cylinder is arranged at the top end of the vertical plate; according to the winding needle mechanism, during winding, the winding needle does not need to stretch out from the returning position, the time of the working rhythm is shortened, the winding working efficiency of the winding needle mechanism is improved, the diaphragm is close to the winding needle mechanism, and the stability of needle threading cannot be affected.

Description

Technical Field

[0001] This utility model relates to the field of cutting mechanism technology, specifically a needle coil diaphragm surface cutting mechanism. Background Technology

[0002] In the lithium battery manufacturing process, the separator is a critical component, and its quality and processing precision directly affect the battery's performance and safety. After the separator is wound on a needle to form a cell, it needs to be precisely cut to ensure that the ends of the separator are neat and burr-free, avoiding any impact on subsequent battery assembly processes, such as preventing separator burrs from puncturing the positive and negative electrode plates and causing short circuits or other safety issues.

[0003] During the cell winding process, the empty winding needle rotates to the winding station and extends from the retracted position. The diaphragm passes through the winding needle and is clamped. After the diaphragm is cut, the winding needle begins to wind. This prolongs the equipment's working cycle and reduces the winding efficiency of the film winding mechanism. Utility Model Content

[0004] The purpose of this invention is to provide a cutting mechanism for the surface of a diaphragm, which has the advantage of shortening the working cycle of the needle winding mechanism and solves the problem that the current film winding mechanism has a long working cycle, resulting in reduced work efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a needle winding diaphragm surface cutting mechanism, comprising a needle winding assembly and a cutting assembly disposed on one side of the needle winding assembly, wherein a diaphragm is disposed between the needle winding assembly and the cutting assembly, the needle winding assembly includes a movable outer needle, a fixed outer needle is disposed above the movable outer needle, a movable inner needle is disposed at the bottom of the fixed outer needle, a spring pressure plate is disposed at the top of the movable outer needle facing the cutting assembly, and a fixed seat is connected to one end of the movable outer needle and the fixed outer needle, and the cutting assembly includes a base, wherein a vertical plate is disposed on the side of the base facing the needle winding assembly.

[0006] Preferably, a telescopic cylinder is provided at the top of the vertical plate, and a cutter is provided on the side of the vertical plate facing the needle winding assembly, with the lower end face of the cutter flush with the upper end face of the movable outer needle.

[0007] Preferably, four support rods are symmetrically arranged on the side of the vertical plate, and two suction plates are connected to each of the four support rods. The two suction plates are respectively placed at the upper and lower ends of the vertical plate.

[0008] Preferably, both ends of the two suction plates extend beyond the two sides of the diaphragm, and the two suction plates are respectively facing the sides of the movable outer needle and the fixed outer needle.

[0009] Preferably, the output end of the telescopic cylinder is provided with a connecting plate, and the bottom end of the connecting plate facing the needle coiling assembly is provided with several push plates, which are placed between the movable outer needle and the fixed outer needle and above the spring pressure plate.

[0010] Preferably, the connecting plate and the push plate together constitute a diaphragm pusher, which is W-shaped.

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

[0012] This invention comprises a movable outer needle, a fixed outer needle, a spring pressure plate, a suction plate, a telescopic cylinder, a connecting plate, a push plate, and a cutter. The telescopic cylinder drives the connecting plate to move, and the push plate at the bottom of the connecting plate pushes the diaphragm between the movable and fixed outer needles, where it is initially fixed by the spring pressure plate. The cutter cuts the diaphragm by adhering to the upper surface of the movable outer needle. During winding, the needle does not need to extend from the retracted position, shortening the working cycle time and improving the winding efficiency of the needle winding mechanism. Furthermore, the diaphragm is close to the needle winding mechanism, so it does not affect the stability of needle threading. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0014] Figure 2 This utility model Figure 1 A schematic diagram of the vertical cross-sectional structure of the coil needle assembly;

[0015] Figure 3 This utility model Figure 1 Schematic diagram of the middle cutting component;

[0016] Figure 4 This utility model Figure 1 A schematic diagram of the structure of the diaphragm pusher.

[0017] The reference numerals and names in the figure are as follows:

[0018] 1. Needle coiling assembly; 11. Movable outer needle; 12. Fixed outer needle; 13. Movable inner needle; 14. Spring pressure plate; 15. Fixed base; 2. Cutting assembly; 21. Base; 22. Vertical plate; 23. Support rod; 24. Suction plate; 25. Telescopic cylinder; 26. Connecting plate; 27. Push plate; 28. Cutting knife; 3. Diaphragm. Detailed Implementation

[0019] 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.

[0020] In the description of the embodiments of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the embodiments of this utility model and simplifying the description. They 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0021] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0022] Please see Figures 1 to 4This utility model provides an embodiment of a needle winding diaphragm surface cutting mechanism, comprising a needle winding assembly 1 and a cutting assembly 2 disposed on one side of the needle winding assembly 1. A diaphragm 3 is disposed between the needle winding assembly 1 and the cutting assembly 2. The needle winding assembly 1 includes a movable outer needle 11, a fixed outer needle 12 disposed above the movable outer needle 11, a movable inner needle 13 disposed at the bottom of the fixed outer needle 12, and a spring pressure plate 14 disposed at the top of the movable outer needle 11 facing the cutting assembly 2. A fixed seat 15 is connected to one end of the movable outer needle 11 and the fixed outer needle 12. The cutting assembly 2 includes a base 21, a vertical plate 22 disposed on the side of the base 21 facing the needle winding assembly 1, a telescopic cylinder 25 disposed at the top of the vertical plate 22, and a cutter 28 disposed on the side of the vertical plate 22 facing the needle winding assembly 1. The lower end face of the cutter 28 is flush with the upper end face of the movable outer needle 11. Four symmetrically arranged blades are arranged on the side of the vertical plate 22. One support rod 23, four support rods 23 are connected in pairs to two suction plates 24. In specific implementation, the two suction plates 24 are respectively attached to the outer edge surfaces of the movable outer needle 11 and the fixed outer needle 12. When the suction plates 24 are attached to the outer edge surfaces of the movable outer needle 11 and the fixed outer needle 12, the cutter 28 is attached to the upper end surface of the movable outer needle 11 to complete the cutting of the diaphragm. The two suction plates 24 are respectively placed at the upper and lower ends of the vertical plate 22. Both ends of the two suction plates 24 extend out of the two sides of the diaphragm 3, and the two suction plates 24 are respectively facing the sides of the movable outer needle 11 and the fixed outer needle 12. The output end of the telescopic cylinder 25 is provided with a connecting plate 26. Several push plates 27 are provided at the bottom end of the side of the connecting plate 26 facing the needle winding assembly 1. The push plates 27 are placed between the movable outer needle 11 and the fixed outer needle 12 and above the spring pressure plate 14. The connecting plate 26 and the push plates 27 together constitute the diaphragm push plate. The diaphragm push plate is W-shaped.

[0023] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A needle septum surface cutting mechanism, comprising a needle assembly (1) and a cutting assembly (2) arranged on one side of the needle assembly (1), characterized in that: The diaphragm (3) is arranged between the winding needle assembly (1) and the cutting assembly (2), the winding needle assembly (1) comprises a movable outer needle (11), a fixed outer needle (12) is arranged above the movable outer needle (11), a movable inner needle (13) is arranged at the bottom of the fixed outer needle (12), a spring pressing plate (14) is arranged at the top of the movable outer needle (11) and faces the cutting assembly (2), a fixed seat (15) is connected to one end of the movable outer needle (11) and the fixed outer needle (12), the cutting assembly (2) comprises a base (21), and a vertical plate (22) is arranged on the side of the base (21) facing the winding needle assembly (1).

2. A wick septum surface cutoff mechanism according to claim 1, wherein: A telescopic air cylinder (25) is arranged at the top of the vertical plate (22), a cutter (28) is arranged on the side of the vertical plate (22) facing the winding needle assembly (1), and the lower end surface of the cutter (28) is flush with the upper end surface of the movable outer needle (11).

3. A needle septum surface severing mechanism according to claim 1 wherein: Four supporting rods (23) are symmetrically arranged on the side of the vertical plate (22), two suction plates (24) are connected to every two supporting rods (23), and the two suction plates (24) are arranged at the upper and lower ends of the vertical plate (22) respectively.

4. A needle septum surface severing mechanism according to claim 3, wherein: The two ends of the two suction plates (24) extend out of the two sides of the diaphragm (3), and the two suction plates (24) respectively face the side surfaces of the movable outer needle (11) and the fixed outer needle (12).

5. A wick septum surface cutoff mechanism as defined in claim 2, wherein: A connecting plate (26) is arranged at the output end of the telescopic air cylinder (25), a plurality of push plates (27) are arranged at the bottom of the side of the connecting plate (26) facing the winding needle assembly (1), the push plates (27) are arranged between the movable outer needle (11) and the fixed outer needle (12) and above the spring pressing plate (14).

6. A wick septum surface cut-off mechanism according to claim 5, wherein: The connecting plate (26) and the push plates (27) jointly form a diaphragm pushing piece, and the diaphragm pushing piece is in W shape.

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