Normalizing device and die cutting equipment

By designing a straightening device, and using a multi-directional straightening mechanism and flexible components to align the electrode sheets, the problem of irregular electrode sheet cutting was solved, which improved the quality and efficiency of the battery cells and reduced the defect rate and the risk of damage.

CN223454922UActive Publication Date: 2025-10-21宜春清陶能源科技有限公司
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Patent Information

Application Number
CN202422686831.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-05
Publication Date
2025-10-21
Estimated Expiration
2034-11-05

AI Technical Summary

Technical Problem

Irregularity occurs after die-cutting of the pole piece, resulting in a large deviation in positioning and correction in the next process, affecting the stacking efficiency and poor cell coating. The existing die-cutting equipment relies on rough alignment by robots, which causes damage to the pole piece.

Method used

Design a straightening device including two first straightening mechanisms and two second straightening mechanisms, which precisely straighten the electrode sheets by moving in different directions, combined with adjustable positions to adapt to different size specifications, and employs flexible components to prevent damage to the electrode sheets.

Benefits of technology

It improves electrode alignment, reduces cell coating defect rate, ensures electrode alignment accuracy, has a compact structure, good versatility, and reduces costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of battery production, in particular to a normalizing device and die cutting equipment. The normalizing device comprises a rack, two first normalizing mechanisms and two second normalizing mechanisms, the two first normalizing mechanisms are installed on the rack and oppositely arranged in the first direction, the output ends of the two first normalizing mechanisms can be close to or away from each other in the first direction, and the position of at least one first normalizing mechanism in the first direction is adjustable; the two second neatening mechanisms are oppositely arranged in the second direction, the two ends, in the first direction, of each second neatening mechanism are installed on the two first neatening mechanisms correspondingly, the output ends of the two second neatening mechanisms can get close to or get away from each other in the second direction, and the positions, in the first direction and the second direction, of the second neatening mechanisms are adjustable; the regularizing effect of the pole piece is improved, the universality is good, and the reject ratio of battery cell coating is reduced. According to the die cutting equipment, by applying the normalizing device, the cell coating reject ratio is reduced, and the overall quality of cells is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to battery production technical field especially relates to a regular device and die cutting equipment. BACKGROUND

[0002] In the manufacturing process of the battery pole piece, the die cutting equipment is usually needed to cut the continuously coated pole piece according to the size of the produced battery.

[0003] After the pole piece is cut, the pole piece appears irregular phenomenon when discharging, so that the positioning deviation range of the next process (the laminating process) is large, the laminating efficiency is affected, and the battery cell coating is easily caused to be poor and the like. Therefore, the pole piece needs to be uniformly regular, and the pole piece is kept neat.

[0004] In the existing die cutting equipment, the discharging process of the pole piece mainly depends on the mechanical hand to roughly align, and the pole piece is easily irregular, so that the positioning deviation range of the next process (the laminating process) is large, the laminating efficiency is affected, and the battery cell coating is easily caused to be poor and the like, which restricts the improvement of the overall quality of the battery cell.

[0005] Therefore, an urgent need exists for a regular device and die cutting equipment to solve the above problems. SUMMARY

[0006] The utility model discloses a regular device and die cutting equipment, ensure the alignment precision of the pole piece in the regular process, improve the regular effect of the pole piece, can simultaneously regular different size specifications of pole piece, good universality, reduce the battery cell coating bad rate, improve the overall quality of the battery cell.

[0007] To achieve the above object, the following technical scheme is provided:

[0008] The regular device comprises:

[0009] A rack;

[0010] Two first regular mechanisms are installed on the rack and oppositely arranged along a first direction, the output ends of the two first regular mechanisms can approach or move away from each other along the first direction, and the position of at least one first regular mechanism along the first direction is adjustable;

[0011] Two second regular mechanisms are oppositely arranged along a second direction, and the two ends of each second regular mechanism along the first direction are respectively installed on the two first regular mechanisms, the output ends of the two second regular mechanisms can approach or move away from each other along the second direction, and the position of the second regular mechanism along the first direction and the position along the second direction are adjustable.

[0012] As an option, the rack comprises two mounting supports, the two mounting supports are arranged at intervals along the second direction, and a first slot hole extending along the first direction is arranged on the mounting supports;

[0013] The first regulating mechanism comprises:

[0014] a first mounting member;

[0015] a first driving member arranged on the first mounting member;

[0016] a first regulating member arranged at an output end of the first driving member, and the first driving member is capable of driving the first regulating member to move along the first direction;

[0017] a first fixing member, the first fixing member is arranged through the first slot hole and connected with the first mounting member, and the first fixing member is adjustable in position of the first slot hole.

[0018] As an option, the mounting support further comprises a mounting slot extending along the first direction, the mounting slot is communicated with the first slot hole, and an end of the first mounting member is inserted into the mounting slot.

[0019] As an option, the first regulating mechanism further comprises:

[0020] a first flexible member arranged on a side of the first regulating member facing another first regulating mechanism.

[0021] As an option, a mounting hole group is arranged on the first mounting member, and the mounting hole group comprises a plurality of mounting holes arranged at intervals along the second direction;

[0022] The second regulating mechanism comprises:

[0023] a second mounting member;

[0024] a second driving member arranged on the second mounting member;

[0025] a second regulating member arranged at an output end of the second driving member, and the second driving member is capable of driving the second regulating member to move along the second direction;

[0026] a second fixing member, the second fixing member is arranged through the second mounting member and is capable of being connected into any mounting hole.

[0027] As an option, the mounting hole group is arranged in at least two groups, and the at least two groups of mounting hole groups are arranged at intervals along the second direction.

[0028] As an option, the second mounting member is provided with a second strip-shaped hole extending along the first direction, the second fixing member is threaded through the second strip-shaped hole and connected to any one of the mounting holes, and the second fixing member is adjustable in position in the second strip-shaped hole.

[0029] As an option, the number of the second strip-shaped holes is at least two, and the at least two second strip-shaped holes are arranged at intervals along the second direction, and each of the second strip-shaped holes is provided with the second fixing member correspondingly.

[0030] As an option, the second regularizing mechanism further comprises:

[0031] A second flexible member is arranged on the side of the second regularizing member facing the other second regularizing mechanism.

[0032] The die-cutting device comprises a die-cutting device and the above-mentioned regularizing device, and the regularizing device is used for regularizing the pole piece cut by the die-cutting device.

[0033] Compared with the prior art, the die-cutting device has the following beneficial effects:

[0034] The regularizing device provided by the utility model realizes the regularizing of the pole piece in the first direction and the second direction through the two first regularizing mechanisms and the two second regularizing mechanisms, ensures the alignment accuracy of the pole piece in the regularizing process, improves the regularizing effect of the pole piece, and reduces the poor rate of the battery cell coating, the two first regularizing mechanisms are arranged on the two first regularizing mechanisms respectively through the two ends of each second regularizing mechanism in the first direction, no additional mounting structure needs to be arranged on the second regularizing mechanism, the use cost is low, the space of the regularizing device is saved, the regularizing device is compact in structure and reasonable in layout, the position of at least one first regularizing mechanism in the first direction is adjustable, and the position of the second regularizing mechanism in the first direction and the position of the second regularizing mechanism in the second direction are adjustable, so that the regularizing device can meet the demand of regularizing pole pieces of different sizes, and the versatility is good.

[0035] The die-cutting device provided by the utility model realizes the regularizing of the pole piece in the first direction and the second direction through the two first regularizing mechanisms and the two second regularizing mechanisms, ensures the alignment accuracy of the pole piece in the regularizing process, improves the regularizing effect of the pole piece, and reduces the poor rate of the battery cell coating, the use cost is low, the space of the regularizing device is saved, the regularizing device is compact in structure and reasonable in layout, the position of at least one first regularizing mechanism in the first direction is adjustable, and the position of the second regularizing mechanism in the first direction and the position of the second regularizing mechanism in the second direction are adjustable, so that the regularizing device can meet the demand of regularizing pole pieces of different sizes, and the versatility is good. BRIEF DESCRIPTION OF DRAWINGS

[0036] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed to be used in the following description of the embodiments of the utility model will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to the contents of the embodiments of the utility model and these drawings by those skilled in the art without creating labor.

[0037] Figure 1 A structure schematic view of the shaping device is provided for the embodiments of the present application.

[0038] Reference signs:

[0039] 100, shaping device;

[0040] 10, first shaping mechanism; 11, first mounting piece; 111, mounting hole; 12, first driving piece; 13, first shaping piece; 14, first fixing piece;

[0041] 20, second shaping mechanism; 21, second mounting piece; 211, second slot-shaped hole; 22, second driving piece; 23, second shaping piece; 24, second fixing piece;

[0042] 30, mounting bracket; 31, first slot-shaped hole; 32, mounting groove. DETAILED DESCRIPTION

[0043] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of ways other than those described herein, and by persons skilled in the art without departing from the scope of the present application, and therefore the present application is not limited to the specific embodiments disclosed below.

[0044] In the description of the present application, it should be understood that if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0045] In addition, if these terms "first", "second" appear, these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features referred to. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, if the term "multiple" appears, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0046] In the present application, unless specifically defined otherwise and limited, if there are terms such as "mount", "connect", "connect", "fix" and the like, these terms should be understood in a broad sense. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0047] In the present application, unless specifically defined otherwise and limited, if there are similar descriptions such as "first feature on" or "second feature", the meaning can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" of the second feature can be directly above or obliquely above the first feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature can be directly below or obliquely below the first feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0048] It should be noted that if an element is referred to as "fixed to" or "provided to" another element, it can be directly on another element or there can be a middle element. If an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are only for illustrative purposes and are not the only embodiment.

[0049] The embodiment provides a die cutting device, which comprises a die cutting device for die cutting a continuously coated pole piece according to the size of a produced battery.

[0050] After the pole piece is die cut, the pole piece appears irregular during discharging, resulting in a large positioning and correction range in the next process (a lamination process), affecting lamination efficiency, and easily causing poor battery core coating and the like. Therefore, the pole piece needs to be uniformly regularized to keep the pole piece placed in order.

[0051] In the existing die cutting device, the discharging process of the pole piece mainly depends on the rough alignment of the mechanical hand, and the pole piece is prone to irregularity, resulting in a large positioning and correction range in the next process (a lamination process), affecting lamination efficiency, and easily causing poor battery core coating and the like, which restricts the improvement of the overall quality of the battery core; and the mechanical hand directly contacts the pole piece, which is easy to cause damage to the pole piece.

[0052] To solve the above problems, the die cutting device provided by the embodiment further comprises a shaping device 100, as shown in the figure Figure 1 The shaping device 100 comprises a rack, two first shaping mechanisms 10 and two second shaping mechanisms 20. The two first shaping mechanisms 10 are installed on the rack and oppositely arranged along a first direction. The output ends of the two first shaping mechanisms 10 can approach or move away from each other along the first direction. The position of at least one first shaping mechanism 10 along the first direction is adjustable to shape the pole piece along the first direction. The two second shaping mechanisms 20 are oppositely arranged along a second direction. Each second shaping mechanism 20 is installed on the two first shaping mechanisms 10 along both ends of the first shaping mechanism 10 along the first direction. The output ends of the two second shaping mechanisms 20 can approach or move away from each other along the second direction to shape the pole piece along the second direction. The position of the second shaping mechanism 20 along the first direction and the position of the second shaping mechanism 20 along the second direction are adjustable.

[0053] The pole piece is shaped along the first direction by the two first shaping mechanisms 10 and shaped along the second direction by the two second shaping mechanisms 20, so as to shape the pole piece along the first direction and the second direction, ensure the alignment accuracy of the pole piece during shaping, improve the shaping effect of the pole piece, and reduce the cell coating failure rate. Each second shaping mechanism 20 is installed on the two first shaping mechanisms 10 along both ends of the first shaping mechanism 10 along the first direction, so that the second shaping mechanism 20 does not need to be additionally provided with a mounting structure, thereby saving the space of the shaping device 100, making the structure of the shaping device 100 compact, the layout reasonable, and the use cost low. The position of the first shaping mechanism 10 along the first direction is adjustable, and the position of the second shaping mechanism 20 along the first direction and the position of the second shaping mechanism 20 along the second direction are adjustable, so that the shaping device 100 can meet the demand of shaping pole pieces of different sizes and specifications, and has good versatility.

[0054] It should be noted that the die cutting device completes the shaping of one pole piece each time, and the shaping device 100 acts once, so that the stacked pole pieces have high alignment accuracy, the cell coating failure rate is reduced, and the overall quality of the cell is improved.

[0055] Optionally, the first shaping mechanism 10 comprises a first mounting member 11, a first driving member 12, and a first shaping member 13. The first driving member 12 is arranged on the first mounting member 11, and the first shaping member 13 is arranged on the output end of the first driving member 12. The first driving member 12 can drive the first shaping member 13 to move along the first direction to approach or move away from the pole piece. The first driving member 12 drives the first shaping member 13 to move along the first direction, so as to realize the automatic shaping of the pole piece along the first direction. The first driving member 12 can be a pneumatic cylinder, an electric push rod, or a linear motor.

[0056] Optionally, the rack comprises two mounting supports 30, the two mounting supports 30 are arranged at intervals along the second direction, and the mounting support 30 is provided with a first strip-shaped hole 31 extending along the first direction; the first sizing mechanism 10 comprises a first fixing piece 14, the first fixing piece 14 is arranged through the first strip-shaped hole 31 and connected with the first mounting piece 11, the position of the first fixing piece 14 in the first strip-shaped hole 31 is adjustable, and by adjusting the position of the first fixing piece 14 in the first strip-shaped hole 31, the interval between the two first sizing mechanisms 10 along the first direction is adjusted, so as to realize the sizing of the pole piece of different sizes in the first direction, improve the size range of the pole piece sized by the sizing device 100 along the first direction, and improve the versatility of the sizing device 100.

[0057] Optionally, the first fixing piece 14 is threadedly connected with the first mounting piece 11, facilitating quick disassembly and assembly of the first fixing piece 14 and the first mounting piece 11, so as to improve the mounting efficiency of the first fixing piece 14 and the first mounting piece 11.

[0058] Optionally, the mounting support 30 further comprises a mounting groove 32 extending along the first direction, the mounting groove 32 is communicated with the first strip-shaped hole 31, and the end of the first mounting piece 11 is inserted into the mounting groove 32, the mounting groove 32 realizes the limiting effect on the end of the first mounting piece 11, and improves the stability of the connection between the first mounting piece 11 and the mounting support 30.

[0059] Optionally, the first sizing mechanism 10 further comprises a first flexible piece, the first flexible piece is arranged on the side of the first sizing piece 13 facing the other first sizing mechanism 10, and the first flexible piece is used for flexibly abutting against the pole piece, so as to prevent the first sizing piece 13 from directly impacting the pole piece and causing the pole piece to be scratched.

[0060] Optionally, the first flexible piece is made of soft plastic, silica gel or rubber, etc. For example, the first flexible piece is made of EVA (Ethylene Vinyl Acetate Copolymer) soft foam material, and the above-mentioned material has the advantages of light weight, softness, wear resistance, corrosion resistance, etc.

[0061] Optionally, the second sizing mechanism 20 comprises a second mounting piece 21, a second driving piece 22 and a second sizing piece 23, the second mounting piece 21 is arranged on the first mounting piece 11; the second driving piece 22 is arranged on the second mounting piece 21, and the second sizing piece 23 is arranged on the output end of the second driving piece 22, the second driving piece 22 can drive the second sizing piece 23 to move along the second direction to approach or move away from the pole piece, and by driving the second sizing piece 23 to move along the second direction through the second driving piece 22, the automatic sizing of the pole piece along the second direction is realized. The second driving piece 22 can be a pneumatic cylinder, an electric push rod or a linear motor, etc.

[0062] Optionally, the first mounting member 11 is provided with a mounting hole group, the mounting hole group comprises a plurality of mounting holes 111 arranged at intervals along the second direction; the second sizing mechanism 20 further comprises a second fixing member 24, the second fixing member 24 is arranged through the second mounting member 21 and can be connected in any mounting hole 111, by adjusting the connection between the second fixing member 24 and any mounting hole 111, and then adjusting the interval between the two second sizing mechanisms 20 along the second direction, the sizing of the pole piece of different sizes in the second direction is realized, the size range of the pole piece sized by the sizing device 100 along the second direction is improved, and the versatility of the sizing device 100 is further improved.

[0063] Optionally, the mounting hole group is provided with at least two groups, and the at least two groups of mounting hole groups are arranged at intervals along the second direction, so as to improve the adjustable range of the second fixing member 24 along the first direction and improve the adaptability.

[0064] Optionally, the second mounting member 21 is provided with a second slot hole 211 extending along the first direction; the second fixing member 24 is arranged through the second slot hole 211 and connected to any mounting hole 111, and the position of the second fixing member 24 in the second slot hole 211 is adjustable; when the two first mounting members 11 are adjusted in position along the first direction, the second fixing member 24 can be adaptively adjusted in the second slot hole 211, so as to facilitate the better docking of the second fixing member 24 with the mounting hole 111, and further improve the adjustable range of the second fixing member 24 along the first direction.

[0065] Optionally, the number of the second slot holes 211 is at least two, and the at least two second slot holes 211 are arranged at intervals along the second direction, and each second slot hole 211 is correspondingly provided with a second fixing member 24, which helps to improve the stability of the connection between the second mounting member 21 and the first mounting member 11.

[0066] Optionally, the second fixing member 24 is provided with an external thread, and the mounting hole 111 is provided with an internal thread, the second fixing member 24 is threadedly connected with the internal thread arranged in the mounting hole 111, so as to facilitate the quick disassembly and assembly of the second fixing member 24 and the second mounting member 21, and improve the mounting efficiency of the second fixing member 24 and the second mounting member 21.

[0067] Optionally, the second sizing mechanism 20 further comprises a second flexible member, the second flexible member is arranged on the side of the second sizing member 23 facing the other second sizing mechanism 20, and the first flexible member is used for flexibly abutting against the pole piece to prevent the second sizing member 23 from directly impacting the pole piece and causing the pole piece to be scratched.

[0068] Optionally, the second flexible member is made of soft plastic, silica gel or rubber, etc. For example, the second flexible member is made of EVA (Ethylene Vinyl Acetate Copolymer) soft foam material, which has the advantages of light weight, softness, wear resistance, corrosion resistance, etc.

[0069] Note that in the description of the present specification, the description referring to the terms "some embodiments", "other embodiments", and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described can be appropriately combined in any one or more embodiments or examples.

[0070] The above are only the preferred embodiments of the present application and the technical principles applied. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the scope of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments, and can include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the appended claims.

Claims

1. A sizing device characterized by, The utility model relates to a kind of first and second regular mechanism, comprising: Frame; Two first regular mechanisms (10) are mounted on the frame, and are oppositely arranged along a first direction, the output end of two the first regular mechanisms (10) can be close to or away from each other along the first direction, and the position of at least one the first regular mechanism (10) along the first direction is adjustable; Two second regular mechanisms (20) are oppositely arranged along a second direction, and each second regular mechanism (20) is mounted on two the first regular mechanisms (10) along two ends of the first direction respectively, the output end of two the second regular mechanisms (20) can be close to or away from each other along the second direction, and the position of the second regular mechanism (20) along the first direction and the position along the second direction are adjustable.

2. The sizing device of claim 1, wherein, The frame includes two mounting supports (30), and the two mounting supports (30) are spaced apart along the second direction, and the mounting support (30) is provided with a first slot (31) extending along the first direction; The first regular mechanism (10) includes: First mounting member (11); First drive member (12) is provided on the first mounting member (11); First regular member (13) is provided at the output end of the first drive member (12), and the first drive member (12) can drive the first regular member (13) to move along the first direction; First fixing member (14) is provided with the first slot (31) and connected with the first mounting member (11), and the position of the first fixing member (14) in the first slot (31) is adjustable.

3. The sizing device of claim 2, wherein, The mounting support (30) further includes a mounting groove (32) extending along the first direction, and the mounting groove (32) is communicated with the first slot (31), and the end of the first mounting member (11) is inserted into the mounting groove (32).

4. The sizing device of claim 2, wherein The first regular mechanism (10) further includes: First flexible member is provided on the side of the first regular member (13) towards another first regular mechanism (10).

5. The sizing device of claim 2, wherein The first mounting member (11) is provided with a mounting hole group, and the mounting hole group includes a plurality of mounting holes (111) arranged along the second direction at intervals; The second regular mechanism (20) includes: Second mounting member (21); Second drive member (22) is provided on the second mounting member (21); Second regular member (23) is provided at the output end of the second drive member (22), and the second drive member (22) can drive the second regular member (23) to move along the second direction; Second fixing member (24) is provided with the second mounting member (21) and can be connected into any mounting hole (111).

6. The sizing device of claim 5, wherein, The mounting hole group is provided with at least two groups, and at least two groups of the mounting hole group are spaced apart along the second direction.

7. The sizing device of claim 5, wherein, The second mounting member (21) is provided with a second strip-shaped hole (211) extending along the first direction, the second fixing member (24) is arranged through the second strip-shaped hole (211) and connected to any one of the mounting holes (111), and the second fixing member (24) is adjustable in position of the second strip-shaped hole (211).

8. The sizing device of claim 7, wherein, The number of the second strip-shaped holes (211) is at least two, and the at least two second strip-shaped holes (211) are arranged at intervals along the second direction, and each of the second strip-shaped holes (211) is correspondingly provided with the second fixing member (24).

9. The sizing device of claim 5, wherein, The second regularizing mechanism (20) further comprises: A second flexible member arranged on a side of the second regularizing member (23) facing the other second regularizing mechanism (20).

10. A die-cutting apparatus characterized by, The regularizing device according to any one of claims 1-9 is used for regularizing the pole piece cut by the die-cutting device.