Material belt cutting device and battery cell winding equipment

Abstract

The utility model relates to a material belt cutting device and battery cell winding equipment, including cutter mechanism and dust collection mechanism, cutter mechanism includes first cutter and second cutter, first cutter and second cutter are respectively provided at the both sides of material cut, dust collection mechanism includes a plurality of dust collection parts, each dust collection part is all molded integrally, and the dust collection part is equipped with the dust collection mechanism. Each dust collection component is provided with a first dust collection hole, and the multiple first dust collection holes are formed around the material notch. According to the material belt cutting device and the battery cell winding equipment, the plurality of first dust collection holes are formed to surround the material notch, and when cutting is carried out, dust and chippings generated when the material belt is cut are adsorbed through the first dust collection holes; due to the fact that the multiple first dust removal holes surround the material notch, dust and chippings generated in the cutting process of the cutter and the material belt can be absorbed by the corresponding first dust collection holes; and dust and scraps can be effectively prevented from polluting the working environment, the service life of equipment is prolonged, the dust removal effect is good, and the product yield is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery automation equipment, in particular to a material strip cutting device and a battery core winding device. Background Art

[0002] The cell of a lithium battery includes a separator, an anode sheet and a cathode sheet. In the production process of lithium-ion cells, taking a wound cell as an example, the pole sheets and separators are stacked in a certain order to form a strip through a winding device, and the strip is wound to a fixed length and affixed with a stop glue to obtain a finished cell.

[0003] During the fixed-length winding process, the material tape needs to be cut to ensure the length of the wound material tape. Therefore, a material tape cutting device for cutting the material tape will be provided on the winding equipment. Taking a conventional material tape cutting device as an example, it is provided with two oppositely arranged cutters, the blades of the two cutters are arranged facing each other, and the material tape passes between the two cutters. When the length of the passed material tape reaches a certain value, the two cutters move relatively close to each other to cut the material tape. During the cutting process of the material tape, dust and debris will be generated when the material tape is cut. The presence of dust and debris can easily contaminate the winding equipment and the material tape, and there are problems such as polluting the working environment, reducing the service life of the equipment, and affecting the product yield.

[0004] In the prior art, dust removal components are usually used for dust removal. However, most of the dust removal components in the prior art are made of metal splicing, and dust and debris are easily accumulated inside the spliced ​​dust removal components, which affects the dust removal effect. Summary of the invention

[0005] To this end, the technical problem to be solved by the utility model is to overcome the problem that dust and debris generated in the existing material strip cutting process are easy to pollute the working environment, reduce the service life of the equipment, have poor dust removal effect, and affect the product yield. A material strip cutting device and a battery cell winding device are provided, which have good dust removal effect, avoid dust and debris from polluting the working environment, extend the service life of the equipment, and improve the product yield.

[0006] The utility model provides a material strip cutting device, comprising a cutting mechanism, the cutting mechanism comprising a first cutting knife and a second cutting knife, the first cutting knife and the second cutting knife are respectively arranged on both sides of a material incision; a dust suction mechanism, the dust suction mechanism comprising a plurality of dust suction components, each of the dust suction components is integrally formed, each of the dust suction components is provided with a first dust suction hole, and the plurality of the first dust suction holes are arranged around the material incision.

[0007] In one embodiment of the present invention, a plurality of the first dust suction holes are arranged in sequence along the extending direction of the blade of the first cutter.

[0008] In one embodiment of the utility model, a negative pressure hole is provided on the dust suction component, and the negative pressure hole is connected to the first dust suction hole, wherein the aperture of the first dust suction hole gradually decreases from the end of the dust suction component away from the negative pressure hole to the negative pressure hole.

[0009] In one embodiment of the present invention, the dust suction component is configured as a transparent dust suction component.

[0010] In one embodiment of the utility model, the dust suction component includes a first dust suction component, a second dust suction component and a third dust suction component, the first dust suction component and the second dust suction component are respectively arranged on both sides of the first cutter perpendicular to the extension direction of its own blade, and the third dust suction component is arranged on the side of the second cutter close to the second dust suction component.

[0011] In one embodiment of the present invention, a second dust suction hole is formed on the second dust suction component and / or the third dust suction component, and the second dust suction hole is arranged on a side of the first dust suction hole relatively away from the cutter mechanism.

[0012] In one embodiment of the utility model, the dust suction mechanism also includes a connecting component, the two ends of which are respectively connected to the first cutter and the first dust suction component, and the connecting component is used to drive the first dust suction component to press the material belt before the first cutter contacts the second cutter.

[0013] In one embodiment of the utility model, a mounting seat assembly is further included, wherein the mounting seat assembly includes a mounting seat body, a first guide column, a second guide column and a cutter seat, and the cutter seat is slidably connected to the mounting seat body via the first guide column and the second guide column.

[0014] In one embodiment of the utility model, the mounting seat body is a rectangular structure and is provided with a mounting portion that penetrates the body. The first guide column and the cutter seat are both arranged on the mounting portion. Both ends of the first guide column abut against the mounting seat body and penetrate the cutter seat. One end of the second guide column is connected to the cutter seat, and the other end extends out of the mounting seat body and is connected to a connecting piece.

[0015] The utility model also provides a battery core winding device, comprising any one of the above-mentioned material strip cutting devices.

[0016] The above technical solution of the utility model has the following advantages compared with the prior art:

[0017] The material strip cutting device described in the utility model is provided with a plurality of first dust suction holes surrounding the material cutout. When cutting, the dust and debris generated when cutting the material strip are absorbed by the first dust suction holes. Since the plurality of first dust removal holes surround the material cutout, the dust and debris generated by the cutting knife and the material strip during the cutting process can be absorbed by the corresponding first dust suction holes. It can effectively prevent dust and debris from polluting the working environment, extend the service life of the equipment, and improve the yield of the product. The dust suction component is integrally formed, which effectively avoids the problem of dust and debris accumulation caused by the splicing structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to the specific embodiments of the utility model in combination with the accompanying drawings, wherein:

[0019] Figure 1 This is a schematic structural diagram of a material strip cutting device from a first perspective in a preferred embodiment of the utility model;

[0020] Figure 2 This is one of the cross-sectional structural schematic diagrams of the material strip cutting device in the preferred embodiment of the utility model;

[0021] Figure 3 This is the second schematic cross-sectional structure diagram of the material strip cutting device in the preferred embodiment of the utility model;

[0022] Figure 4 This is a schematic structural diagram of the material strip cutting device from a second viewing angle in a preferred embodiment of the utility model;

[0023] Figure 5 This is one of the partial structural schematic diagrams of the material strip cutting device in the preferred embodiment of the utility model;

[0024] Figure 6 This is a schematic structural diagram of the second dust collecting component in a preferred embodiment of the utility model;

[0025] Figure 7 This is the second partial structural diagram of the material strip cutting device in the preferred embodiment of the utility model;

[0026] Figure 8 This is the third schematic cross-sectional structure diagram of the material strip cutting device in the preferred embodiment of the utility model;

[0027] Fig. 9 This is the fourth schematic cross-sectional structure diagram of the material strip cutting device in the preferred embodiment of the utility model.

[0028] Explanation of the reference numerals in the specification: 11. first cutter; 111. first end; 112. second end; 12. second cutter; 13. blade; 14. material incision; 21. first dust suction component; 22. second dust suction component; 23. third dust suction component; 24. first dust suction hole; 25. negative pressure hole; 26. second dust suction hole; 27. connecting assembly; 31. mounting seat body; 311. mounting portion; 312. avoidance hole; 313. second guide portion; 32. first guide column; 33. second guide column; 331. connecting piece; 34. cutter seat; 341. hollow portion; 342. first guide portion; 35. guide component; 351. overlapping portion; 36. wear-resistant component. DETAILED DESCRIPTION

[0029] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0030] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the utility model discloses a material strip cutting device, comprising a cutting mechanism and a dust collecting mechanism.

[0031] The cutting mechanism includes a first cutter 11 and a second cutter 12. The first cutter 11 and the second cutter 12 are both prior arts, and those skilled in the art can set the specific structure, driving mode, etc. of the first cutter 11 and the second cutter 12 according to actual needs to achieve cutting of the material strip. The first cutter 11 and the second cutter 12 are arranged on both sides of the material incision 14. It should be noted that the material incision 14 is defined as a part of the area between the blades 13 of the first cutter 11 and the second cutter 12. At the material incision 14, the cutting of the material strip is achieved by the blades 13 of the first cutter 11 and the second cutter 12. Specifically, during the production process, when cutting is not required, the material strip passes through the material incision 14 and is wound with the winding needle; when cutting is required, the first cutter 11 and / or the second cutter 12 are relatively close to the material incision 14 to achieve cutting of the material strip.

[0032] Since the material strip is prone to generate dust and debris during the cutting process, a dust suction mechanism is provided to clean and vacuum the dust and debris. Specifically, the dust suction mechanism includes a plurality of dust suction components, each of which is provided with a first dust suction hole 24, and a plurality of first dust suction holes 24 are arranged around the material cutout 14. During cutting, the dust and debris generated when the material strip is cut are adsorbed through the first dust suction hole 24. Since it surrounds the material cutout 14, the dust and debris generated by the cutting knife and the material strip during the cutting process can be absorbed by the corresponding first dust suction hole 24. It can effectively prevent dust and debris from polluting the working environment, extend the service life of the equipment, and improve the yield of the product. Each dust suction component is integrally formed, which effectively avoids the problem of dust and debris accumulation caused by the splicing structure. Preferably, each dust suction component is produced based on 3D printing technology to ensure that its interior is smooth and round, to avoid the accumulation of dust and debris, and the production cost is low.

[0033] It should be noted that the specific dust suction principle of the dust suction mechanism is a prior art and will not be described in detail. Those skilled in the art can set an external negative pressure component according to actual needs, or set the negative pressure component as an integral part. Those skilled in the art can set the specific manner in which the first dust suction hole 24 surrounds the material incision 14 according to actual needs. For example, the first dust suction hole 24 is only set on both sides of the material incision 14 parallel to the conveying direction of the material belt, or the first dust suction hole 24 is set on both sides of the material incision 14 parallel to the conveying direction of the material belt, and the first dust suction hole 24 is set on both sides perpendicular to the conveying direction of the material belt, and so on. Those skilled in the art can set the shape, size, quantity, etc. of the first dust suction hole 24 according to actual needs, and will not be described in detail.

[0034] The material strip cutting device described in the utility model is provided with a plurality of first dust suction holes 24 around the material cutout 14. When cutting, the dust and debris generated when cutting the material strip are absorbed by the first dust suction holes 24. Since the plurality of first dust removal holes surround the material cutout 14, the dust and debris generated by the cutter and the material strip during the cutting process can be absorbed by the corresponding first dust suction holes 24 regardless of the angle. It can effectively prevent dust and debris from polluting the working environment, extend the service life of the equipment, and improve the yield of the product. The dust suction component is integrally formed, which effectively avoids the problem of dust and debris accumulation caused by the splicing structure.

[0035] Reference Figure 5 and Figure 6 As shown, in some embodiments of the material strip cutting device of the present invention, each dust suction component is provided with a plurality of first dust suction holes 24, and the plurality of first dust suction holes 24 are sequentially arranged along the extension direction of the blade 13 of the first cutter 11. Providing a plurality of first dust suction holes 24 on the same dust suction component can effectively prevent the material strip from entering the first dust suction holes 24 during the conveying process, thereby effectively improving the reliability of the device during the production process.

[0036] Further, see Figure 1 , Figure 5 and Figure 6 As shown, in some embodiments of the material strip cutting device described in the utility model, a negative pressure hole 25 is provided on the dust suction component, and the negative pressure hole 25 is connected to the first dust suction hole 24, wherein the aperture of the first dust suction hole 24 gradually decreases from the end of the dust suction component away from the negative pressure hole 25 to the negative pressure hole 25. Through the arrangement of this structure, it is effectively ensured that the suction force of each first dust suction hole 24 is equal, and uniform adsorption is achieved. Preferably, the negative pressure hole 25 is arranged at one end of the dust suction component parallel to the extension direction of the blade 13 of the first cutter 11, so as to facilitate communication with an external negative pressure component.

[0037] In some embodiments of the material strip cutting device of the utility model, the dust collecting component is set as a transparent dust collecting component. Preferably, the dust collecting component is made of transparent plastic material, and the transparency can facilitate the staff to observe the inside thereof, so as to clean the dust and debris in time. The light weight of plastic can effectively reduce the overall weight and reduce the driving energy consumption.

[0038] Reference Figure 3 and Figure 4 As shown, in some embodiments of the material strip cutting device of the utility model, the dust suction component includes a first dust suction component 21, a second dust suction component 22 and a third dust suction component 23. The first dust suction component 21 and the second dust suction component 22 are respectively arranged on both sides of the first cutter 11 perpendicular to the extension direction of its own blade 13, and the third dust suction component 23 is arranged on the side of the second cutter 12 close to the second dust suction component 22. During production, the material strip is conveyed from the side of the first dust suction component 21 to the side of the second dust suction component 22. Considering the influence of subsequent incoming material factors, the first dust suction component 21 and the second dust suction component 22 are respectively arranged on both sides of the first cutter 11 perpendicular to the extension direction of its own blade 13, that is, on both sides of the first cutter 11 along the material strip conveying direction, and the third dust suction component 23 is arranged on the side of the second cutter 12 close to the second dust suction component 22, so as to form a surrounding for the material cut 14. It can reduce energy consumption while ensuring the cleaning effect of dust and debris.

[0039] Further, see Figure 6As shown, in some embodiments of the material strip cutting device described in the utility model, a second dust suction hole 26 is provided on the second dust suction component 22 or / and the third dust suction component 23, and the second dust suction hole 26 is arranged on the side of the first dust suction hole 24 relatively far away from the cutting mechanism. Considering that in actual use, the entire device is usually arranged above the winding needle, and under the influence of gravity, dust and debris tend to move downward. Therefore, by further providing a second dust suction hole 26 in the movement direction of the dust and debris, the cleaning effect can be further improved. According to actual needs, the second dust suction hole 26 can be provided only on the second dust suction component 22, or only on the third dust suction component 23. Preferably, the second dust suction hole 26 is provided on both the second dust suction component 22 and the third dust suction component 23. The specific shape, size, and number of the second dust suction hole 26 are similar to those of the first dust suction hole 24, and will not be repeated.

[0040] Further, see Figure 2 As shown, in the material strip cutting device of the utility model, in some embodiments, the dust suction mechanism further includes a connecting component 27, the two ends of the connecting component 27 are respectively connected to the first cutter 11 and the first dust suction component 21, and the connecting component 27 is used to drive the first dust suction component 21 to press the material strip before the first cutter 11 contacts the second cutter 12. Through the setting of the connecting component 27, the cutting effect of the material strip is effectively ensured. Preferably, the connecting component 27 is set as a combination of a guide column and a spring to effectively ensure the pressing effect while avoiding damage to the material strip.

[0041] Reference Figure 7 and Figure 8 As shown, the material strip cutting device described in the utility model, in some embodiments, further includes a mounting seat assembly, and the mounting seat assembly includes a mounting seat body 31, a first guide column 32, a second guide column 33 and a cutter seat 34. The second cutter 12 is connected to the mounting seat body 31 so that the second cutter 12 is used as a fixed knife to achieve cutting. The first guide column 32 is connected to the mounting seat body 31 to increase the stability of the cutter during movement. The second guide column 33 is movably connected to the mounting seat body 31, and the second guide column 33 is used to realize the transmission of the cutter seat 34 and the driving member. The cutter seat 34 is movably connected to the first guide column 32, and the cutter seat 34 is respectively connected to the second guide column 33 and the first cutter 11. This structure enhances the stability of the overall structure. It effectively avoids the shaking problem of the first cutter 11 caused by high tracking cutting frequency and large impact force when only the second guide column 33 is set for transmission, and can ensure that the entire device can achieve relative movement of the first cutter 11 more stably under the premise of meeting the operating requirements of high tracking cutting frequency and large impact force. The device can be used to extend its service life, reduce maintenance costs, improve equipment utilization, and improve product yield. Preferably, the first dust suction component 21 is mounted on the cutter seat 34 through the connecting assembly 27, the second dust suction component 22 is mounted on the cutter seat 34, and the third dust suction component 23 is mounted on the mounting seat body 31.

[0042] Further, see Figure 3 As shown, in some embodiments of the material strip cutting device of the present invention, a hollow portion 341 is provided on the cutter seat 34. The hollow portion 341 can effectively reduce the weight of the cutter seat 34, thereby reducing driving energy consumption and saving production costs.

[0043] Preferably, the mounting seat body 31 is set as a rectangular parallelepiped structure, and a mounting portion 311 penetrating the mounting seat body 31 is provided on the mounting seat body 31, and other components are arranged through the mounting portion 311 to increase space utilization. Preferably, two first guide pillars 32 are provided, and the two first guide pillars 32 are both arranged in the mounting portion 311, and the two first guide pillars 32 are respectively arranged near two oppositely arranged side walls of the mounting portion 311. Preferably, a mounting hole penetrating to the mounting portion 311 is provided on the mounting seat body 31, and the second guide pillar 33 is penetrated in the mounting hole, and the second guide pillar 33 can move along its own axial direction relative to the mounting seat body 31. Preferably, two second guide pillars 33 are provided, one end of the second guide pillar 33 is connected to the cutter seat 34, and the other end is connected to the connecting member 331, so as to be connected to the driving member through the connecting member 331, thereby realizing transmission. Preferably, the axial direction of the first guide pillar 32 is parallel to the axial direction of the second guide pillar 33. It should be noted that the specific shape and structure of the mounting seat body 31 can be set according to actual needs, the specific number, mounting position and mounting angle of the first guide pillars 32 can be set, and the specific number, mounting position and mounting angle of the second guide pillars 33 can be set.

[0044] Preferably, the cutter seat 34 is provided with a first guide portion 342 corresponding to the first guide column 32, and a hole is provided on the first guide portion 342. The first guide column 32 is inserted into the hole of the first guide portion 342 to ensure the stability of the cutter seat 34 during movement. Preferably, the mounting seat body 31 is provided with a second guide portion 313 corresponding to the second guide column 33. A hole is provided on the second guide portion 313, and the hole of the second guide portion 313 is coaxially arranged with the mounting hole. The second guide column 33 sequentially passes through the hole of the second guide portion 313 and the mounting hole to realize the connection transmission between the connecting member 331 and the cutter seat 34. The provision of the first guide portion 342 facilitates the increase of the stability of the second guide column 33 during axial movement.

[0045] Preferably, the first cutter 11 is detachably connected to the cutter seat 34; the second cutter 12 is detachably connected to the mounting seat body 31. By detachably setting the first cutter 11 and the cutter seat 34, and detachably setting the second cutter 12 and the mounting seat body 31, it is convenient to replace the cutter when the cutter is worn after a long period of operation to ensure the cutting quality. Preferably, the detachable connection between the first cutter 11 and the cutter seat 34, and the detachable connection between the second cutter 12 and the mounting seat body 31 are achieved by fasteners such as bolts.

[0046] Preferably, refer to Figure 8 and Fig. 9 As shown, the mounting seat assembly also includes a guide component 35, which is connected to the first cutter 11, and the guide component 35 extends toward one side of the second cutter 12 to form an overlap portion 351, and the overlap portion 351 is overlapped on the second cutter 12. By setting the guide component 35, it can be ensured that the first cutter 11 and the second cutter 12 can be reliably cut, and the cutters can be prevented from biting during the relative movement, thereby extending the service life of the cutters. Preferably, two guide components 35 are provided, and the two guide components 35 are respectively provided at the first end 111 and the second end 112 of the first cutter 11 to further improve the structural stability and avoid biting during the relative movement of the cutters. Preferably, a wear-resistant component 36 is provided on the overlap portion 351, so as to achieve overlap with the second cutter 12 through the wear-resistant component 36. Preferably, the wear-resistant component 36 is set to tungsten steel, which is cheap. The wear-resistant component 36 made of tungsten steel is used to achieve contact with the cutter, which can increase wear resistance and reduce maintenance frequency and cost. Preferably, the guide component 35 is integrally formed with the first cutter 11. By integrally arranging the guide component 35, the stability and strength of the structure can be further increased. It should be noted that the two can also be arranged separately, and when the first cutter 11 needs to be replaced, only the first cutter 11 can be replaced without replacing the entire cutter, which can effectively reduce production costs.

[0047] Preferably, the first cutter 11 includes a first end 111 and a second end 112, and the length of the first cutter 11 gradually decreases from the first end 111 to the second end 112. By further defining the structure, it is ensured that when cutting the material strip, the first cutter 11 and the second cutter 12 can cut from the side of the material strip close to the first end 111 to the side close to the second end 112, which can ensure the cutting quality and improve the production efficiency.

[0048] Preferably, the mounting seat body 31 is provided with an escape hole 312 connected to the mounting portion 311, so that the first dust collecting member 21 can pass through the escape hole 312 and escape while being connected to the cutter seat 34. This can avoid mutual interference during the movement of the first cutter 11 and improve space utilization.

[0049] The utility model discloses a battery cell winding device, including the material strip cutting device described in any one of the above embodiments. Since the battery cell winding device described in the utility model includes the material strip cutting device described in the above embodiments, the advantages it has are also possessed by the battery cell winding device, and no further description is given.

[0050] Working principle:

[0051] When cutting is not required, the external drive member drives the first cutter 11 relatively away from the second cutter 12 via the second guide post 33 and the cutter seat 34. When cutting is required, the drive member drives the first cutter 11 relatively close to the second cutter 12 via the second guide post 33 and the cutter seat 34 to cut the material strip at the material cut 14.

[0052] While the first cutter 11 and the second cutter 12 are cutting the material strip, each dust collecting component absorbs dust and debris through the corresponding dust collecting holes to achieve cleaning, which can effectively prevent dust and debris from polluting the working environment, extend the service life of the equipment, and improve the yield of the product.

[0053] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. A strip cutting device, It is characterized in that include: A cutting mechanism, wherein the cutting mechanism comprises a first cutting knife and a second cutting knife, wherein the first cutting knife and the second cutting knife are respectively arranged on both sides of a material cutting opening; The dust suction mechanism comprises a plurality of dust suction components, each of which is integrally formed, each of which is provided with a first dust suction hole, and a plurality of the first dust suction holes are arranged around the material incision.

2. The strip cutting device according to claim 1, Features: The plurality of first dust suction holes are arranged in sequence along the extending direction of the blade of the first cutter.

3. The strip cutting device according to claim 2, Features: A negative pressure hole is provided on the dust suction component, and the negative pressure hole is connected with the first dust suction hole, wherein the aperture of the first dust suction hole gradually decreases from the end of the dust suction component away from the negative pressure hole to the negative pressure hole.

4. The strip cutting device according to claim 1, Features: The dust absorbing component is configured as a transparent dust absorbing component.

5. The strip cutting device according to any one of claims 1 to 4, Features: The dust suction component includes a first dust suction component, a second dust suction component and a third dust suction component. The first dust suction component and the second dust suction component are respectively arranged on both sides of the first cutter perpendicular to the extension direction of its own blade, and the third dust suction component is arranged on a side of the second cutter close to the second dust suction component.

6. The strip cutting device according to claim 5, Features: The second dust suction component and / or the third dust suction component is provided with a second dust suction hole, and the second dust suction hole is arranged on a side of the first dust suction hole relatively far away from the cutting mechanism.

7. The strip cutting device according to claim 5, Features: The dust suction mechanism also includes a connecting component, the two ends of which are respectively connected to the first cutter and the first dust suction component, and the connecting component is used to drive the first dust suction component to press the material strip before the first cutter contacts the second cutter.

8. The strip cutting device according to claim 1, It is characterized in that Also includes: The mounting seat assembly comprises a mounting seat body, a first guide post, a second guide post and a cutter seat, and the cutter seat is slidably connected to the mounting seat body through the first guide post and the second guide post.

9. The strip cutting device according to claim 8, Features: The mounting seat body is a rectangular structure and is provided with a mounting portion that passes through itself. The first guide column and the cutter seat are both arranged on the mounting portion. Both ends of the first guide column abut against the mounting seat body and pass through the cutter seat. One end of the second guide column is connected to the cutter seat, and the other end extends out of the mounting seat body and is connected to a connecting piece.

10. A battery cell winding device, It is characterized in that It comprises a material strip cutting device as claimed in any one of claims 1 to 9.

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