Support body and tab die-cutting apparatus
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CONTEMPORARY AMPEREX TECHNOLOGY CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-08-07
AI Technical Summary
[0003]本申请的主要目的是提出一种支撑体和极耳模切设备，旨在改善目前极耳模切设备的切割质量较差的问题
[0007]本申请提供的技术方案，支撑体具有支撑端面，将支撑体应用到极耳模切设备中，支撑体可以相对激光切割头设置在极片料带的另一侧，并通过其支撑端面对极片料带提供支撑，削弱了极片料带受到的环境因素的影响，在激光切割头朝向支撑端面切割极片料带的过程中，极片料带发生抖动的问题得到明显的改善，激光切割头不容易出现离焦的现象，从而保证了切割精度与切割质量。
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Figure CN224600766U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of battery processing technology, and in particular to a support and tab die-cutting equipment. Background Technology
[0002] In the field of new energy, the reliability of battery cells has always been a major concern for users. The production process of battery cells usually involves multiple steps, including the tab die-cutting process. The tab die-cutting process requires tab die-cutting equipment, which uses a laser cutting head to cut the exposed edge of the electrode strip into conductive tabs with a specific contour. The cutting quality of the laser cutting head directly affects the internal resistance and current carrying capacity of the battery cell, that is, it affects the reliability of the battery cell. However, the cutting quality of the current tab die-cutting equipment is still poor and does not meet production expectations. Utility Model Content
[0003] The main purpose of this application is to propose a support body and electrode die-cutting equipment, which aims to improve the problem of poor cutting quality of current electrode die-cutting equipment.
[0004] In a first aspect, the support body proposed in this application is used in a tab die-cutting device with a laser cutting head. The support body has a support end face in a first direction, the support end face is used to support the electrode strip, and the support end face is formed with a relief recess, the relief recess is used to match the reciprocating cutting path of the laser cutting head.
[0005] The clearance recess has two first clearance segments and two second clearance segments in its extending direction. The middle of the two first clearance segments is intersected. One of the second clearance segments is connected to the first end of the two first clearance segments, and the other second clearance segment is connected to the second end of the two first clearance segments.
[0006] The two first clearance segments are respectively used to correspond to the two electrode side cutting paths in the reciprocating cutting path, and the two second clearance segments are respectively used to correspond to the electrode head cutting path and the electrode root cutting path in the reciprocating cutting path.
[0007] The technical solution provided in this application has a support end face. When the support is applied to the electrode tab die-cutting equipment, the support can be set on the other side of the electrode strip relative to the laser cutting head, and the support end face provides support to the electrode strip, which reduces the influence of environmental factors on the electrode strip. During the process of the laser cutting head cutting the electrode strip towards the support end face, the problem of the electrode strip shaking is significantly improved, and the laser cutting head is less likely to defocus, thereby ensuring cutting accuracy and cutting quality.
[0008] Based on this, the support end face of the support body also has a relief recess. This relief recess matches the reciprocating cutting path of the laser cutting head, so that the focal point of the laser cutting head always corresponds to the relief recess. Under the relief effect of the relief recess, the laser beam of the laser cutting head acts on the support body at a position deviating from its focal point. The support body is not easily damaged by the laser cutting and will not generate impurities and dust, which can improve the problem of the electrode strip being contaminated.
[0009] Furthermore, the two first avoidance sections of the avoidance recess correspond to the two tab side cutting paths in the reciprocating cutting path of the laser cutting head. Since the two first avoidance sections are intersected in the middle, it means that the laser cutting head has a longer cutting stroke when cutting the two tab sides. The longer cutting stroke is beneficial to controlling the cutting accuracy of the laser cutting head.
[0010] In some embodiments, a dust collection chamber is formed inside the support;
[0011] The bottom of the avoidance recess is connected to the dust collection chamber.
[0012] In the above technical solution, a dust collection chamber is formed inside the support body, and the bottom of the avoidance recess is connected to the dust collection chamber, so that the metal dust generated after long-term cutting of the electrode strip can be collected by falling into the dust collection chamber through the avoidance recess, which is conducive to maintaining the cleanliness of the production environment.
[0013] In some embodiments, the support includes:
[0014] A supporting body, wherein the dust collection chamber is formed in the supporting body, the supporting body has the supporting end face, and the supporting end face has a clearance opening communicating with the dust collection chamber; and,
[0015] A support portion is at least partially disposed in the clearance opening, and there is a gap between the support portion and the sidewall of the clearance opening to define the clearance recess. The support portion is used to support the electrode strip.
[0016] In the above technical solution, a support part is provided in the dust collection chamber. The support part is at least partially located in the avoidance opening. The support part and the support end face have the same function and can both participate in supporting the electrode strip, ensuring that the support body has the largest possible support area and improving the support effect of the support body.
[0017] In some embodiments, the support portion extends along the first direction, and the support portion is integrally connected to the support body at one end of the dust collection chamber.
[0018] In the above technical solution, based on the support end face being in the first direction, the support part is extended along the first direction and integrally connected to the support body through one end of the support part located in the dust collection chamber. Its beneficial effect is that after the support body is installed on the electrode die-cutting equipment, the extension direction of the support part is the same as the light output direction of the laser cutting head, so that the support part can avoid the reciprocating cutting path of the laser cutting head, and the support part is less affected by the adverse effects of the laser cutting head.
[0019] In some embodiments, the inner wall of the dust collection chamber is provided with a light-absorbing surface layer.
[0020] In the above technical solution, a light-absorbing surface layer is provided on the inner wall of the dust collection chamber. The light-absorbing surface layer can absorb the laser beam that penetrates the electrode strip and enters the dust collection chamber through the avoidance recess, which can reduce the reflection effect of the laser beam and limit the degree of damage to the internal structure of the support body by the emitted laser beam, thereby improving the service life of the support body.
[0021] In some embodiments, the support body is provided with a negative pressure port, which is connected to the dust collection chamber.
[0022] In the above technical solution, a negative pressure interface connected to the dust collection chamber is provided in the support body, which can provide a negative pressure environment for the dust collection chamber. The avoidance recess is also connected to the dust collection chamber. Therefore, the metal dust generated by the laser cutting head cutting the electrode strip at the avoidance recess can spontaneously enter the dust collection chamber under the action of negative pressure, further improving the dust collection efficiency of the dust collection chamber.
[0023] In some embodiments, the support body is further provided with a fresh air inlet, which is connected to the dust collection chamber.
[0024] In the above technical solution, the setting of the fresh air inlet allows the negative pressure interface to be connected to the external environment, which helps to reduce the negative pressure at the avoidance recess, reduce the resistance of the dust suction effect of the support to the electrode strip, improve the problem that the electrode strip is prone to wear with the support, and the fresh air drawn in from the fresh air inlet can continuously carry away the metal dust in the dust collection chamber.
[0025] In conjunction with the above embodiment of forming a light-absorbing surface layer on the inner wall of the dust collection chamber, by setting a fresh air inlet and a negative pressure interface, the flowing air can also carry away the heat generated in the dust collection chamber due to laser absorption, thereby reducing the temperature of the support.
[0026] In some embodiments, the fresh air inlet is formed at one end of the support body away from the support end face.
[0027] In the above technical solution, the fresh air inlet is formed at the end of the support body away from the electrode material strip, that is, the air intake direction of the fresh air inlet is set away from the electrode material strip, which helps to reduce the impact of the environmental wind field generated by the air intake of the fresh air inlet on the electrode material strip.
[0028] In some embodiments, the negative pressure interface and the fresh air inlet are respectively located on both sides of the clearance recess along the second direction;
[0029] The first direction and the second direction are intersecting.
[0030] In the above technical solution, since the relief recess is formed on the support end face, and the support end face is in the first direction, the negative pressure interface and the fresh air inlet are respectively located on both sides of the relief recess along the second direction. This is intended to ensure that the air entering the dust collection chamber from the fresh air inlet can fully pass through the position of the relief recess, and then be discharged from the dust collection chamber through the negative pressure interface. This ensures that the airflow can fully flush the position of the relief recess, thereby improving the suction efficiency of the negative pressure interface for cutting dust.
[0031] Secondly, this application also proposes a tab die-cutting device, comprising:
[0032] The support body has a support end face for supporting the electrode strip;
[0033] A laser cutting head is disposed opposite to the support end face of the support body, the laser cutting head having a reciprocating cutting path that matches the extending direction of the avoidance recess of the support body; and...
[0034] The drive assembly is configured to drive the electrode strip through the support in a third direction. Attached Figure Description
[0035] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0036] Figure 1 A schematic diagram of a structure of an embodiment of the electrode die-cutting equipment provided in this application;
[0037] Figure 2 for Figure 1 A front view structural diagram of the middle electrode die-cutting equipment;
[0038] Figure 3 for Figure 2 A magnified structural diagram of part A in the middle;
[0039] Figure 4 for Figure 1 A three-dimensional structural diagram of the central support structure;
[0040] Figure 5 for Figure 4 A front view of the central support structure;
[0041] Figure 6 for Figure 5 A schematic diagram of the shape of the recessed part in the middle;
[0042] Figure 7 for Figure 4 Schematic diagram of the main supporting structure;
[0043] Figure 8 for Figure 4 A side view of the central support structure;
[0044] Figure 9 for Figure 8 A schematic diagram of the structure of the mid-section BB.
[0045] Explanation of icon numbers:
[0046] 1000. Electrode die-cutting equipment;
[0047] 100. Support structure;
[0048] 1. Support body; 11. Dust collection chamber; 111. Light-absorbing surface; 12. Support end face; 13. Avoidance opening; 14. Avoidance recess; 141. First avoidance section; 142. Second avoidance section; 15. Negative pressure interface; 16. Fresh air inlet; 2. Support part; 21. Support end;
[0049] 200. Laser cutting head; 210. Reciprocating cutting path; 211. Electrode head cutting path; 212. Electrode root cutting path; 213. Electrode side cutting path;
[0050] 300. Drive assembly; 310. Transmission roller;
[0051] 400. Electrode strip; 410. Electrode lug; 411. Electrode lug head; 412. Electrode lug root; 413. Electrode lug side; 420. Electrode waste;
[0052] X, the first direction; Y, the second direction.
[0053] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0054] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.
[0055] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.
[0056] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.
[0057] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0058] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).
[0059] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.
[0060] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" 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. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.
[0061] To facilitate understanding of the tab die-cutting equipment provided in this application, the following description is provided in conjunction with the accompanying drawings. Figure 1 A schematic diagram of a structure of an embodiment of the electrode die-cutting equipment provided in this application; Figure 2 for Figure 1 A front view structural diagram of the middle electrode die-cutting equipment; Figure 3 for Figure 2 A magnified structural diagram of part A in the middle.
[0062] Please see Figure 1 and Figure 2 The electrode die-cutting equipment 1000 mainly consists of a laser cutting head 200 and a drive assembly 300. Under the drive of the drive assembly 300, the electrode strip 400 can move at a constant speed V. The laser cutting head 200 is set corresponding to the exposed edge of the electrode strip 400 and has a preset reciprocating cutting path 210. During the movement of the electrode strip 400, the laser cutting head 200 moves along the reciprocating cutting path 210 at a corresponding speed, thereby cutting out an electrode tab 410 with a specific contour. The specific contour of the electrode tab 410 is usually composed of an electrode tab head 411, an electrode tab root 412, and two electrode tab sides 413, such as... Figure 3 As shown, for a single tab 410, the laser cutting head 200 can sequentially cut the tab root 412, one tab side 413, tab head 411, another tab side 413, and tab root 412 in its reciprocating cutting path 210. This cycle repeats, allowing multiple tabs 410 to be continuously cut from the exposed edge of the electrode strip 400, generating electrode waste 420. There are many specific structural types of the drive assembly 300, the most common of which consists of two drive rollers 310, such as... Figure 1 and Figure 2 As shown, the two drive rollers 310 are used to wind the electrode strip 400 to ensure that the electrode strip 400 passes through the laser cutting head 200 at a uniform speed. The driving force of the drive assembly 300 can come from the drive rollers 310 or the electrode winding equipment or electrode stacking equipment downstream of the electrode tab die-cutting equipment 1000. This embodiment does not limit this.
[0063] In the new energy field, the reliability of battery cells has always been a major concern for users. The production process of battery cells typically involves multiple steps, each of which affects the reliability of the battery cell to varying degrees. These steps include tab die-cutting, winding or stacking, welding, and electrolyte injection. The tab die-cutting process requires tab cutting equipment, which uses a laser cutting head to continuously cut tabs from the exposed edges of the electrode strip. After the electrode strip is subsequently processed into electrode assemblies through winding or stacking, the tabs are used to enable energy transfer between the electrode assembly and the external circuitry. The cutting quality of the laser cutting head directly affects the internal resistance and current carrying capacity of the battery cell, thus impacting its reliability.
[0064] However, the quality of electrodes cut by current electrode die-cutting equipment remains unsatisfactory. This is because, even in a relatively enclosed, dust-free workshop, the equipment is still affected by ambient airflow, causing the electrode strip to vibrate during cutting. This vibration can directly lead to defocusing of the laser cutting head, compromising cutting accuracy and affecting the electrode's flow capacity. Given that environmental factors are difficult to avoid, supporting the electrode strip can be considered to counteract potential vibrations.
[0065] In view of this, this application provides a support body, which is applied to an electrode die-cutting equipment, and the support body is positioned on the other side of the electrode strip corresponding to the laser cutting head, and provides support for the electrode strip, which can at least improve the problem of poor cutting quality of the current electrode die-cutting equipment.
[0066] To facilitate understanding of the support provided in this application, the following description is provided in conjunction with the accompanying drawings. Figure 4 for Figure 1 A three-dimensional structural diagram of the central support structure; Figure 5 for Figure 4 A front view of the central support structure; Figure 6 for Figure 5 A schematic diagram of the shape of the recessed part in the middle; Figure 7 for Figure 4 Schematic diagram of the main supporting structure; Figure 8 for Figure 4 A side view of the central support structure; Figure 9 for Figure 8 A schematic diagram of the structure of the mid-section BB.
[0067] Please see Figures 4 to 6In one embodiment of this application, the support body 100 is used in a tab die-cutting device with a laser cutting head 200. The support body 100 has a support end face 12 in a first direction X, which supports the electrode strip 400. The support end face 12 is formed with a relief recess 14, which is used to match the reciprocating cutting path 210 of the laser cutting head 200. The relief recess 14 has two first relief segments 141 and two second relief segments 142 in its extending direction. The middle of segment 141 is intersected, with one second avoidance segment 142 connecting to the first end of the two first avoidance segments 141, and the other second avoidance segment 142 connecting to the second end of the two first avoidance segments 141; wherein, the two first avoidance segments 141 are respectively used to correspond to the two electrode side cutting paths 213 in the reciprocating cutting path 210, and the two second avoidance segments 142 are respectively used to correspond to the electrode head cutting path 211 and the electrode root cutting path 212 in the reciprocating cutting path 210.
[0068] To facilitate understanding of the correspondence between the avoidance section of the avoidance recess 14 and the reciprocating cutting path 210 of the laser cutting head 200, the following is combined with... Figure 6 To explain, in Figure 6 In the diagram, the dashed line represents the reciprocating cutting path 210 of the laser cutting head 200, and the dashed arrow indicates the cyclic direction of the reciprocating cutting path 210. The laser cutting head 200 starts at point C, moves along one of the first avoidance segments 141 of the avoidance recess 14 to point D (corresponding to the cutting path 213 on the side of one electrode tab), then moves along one of the second avoidance segments 142 of the avoidance recess 14 to point E (corresponding to the cutting path 211 at the head of the electrode tab), then moves along another first avoidance segment 141 of the avoidance recess 14 to point F (corresponding to the cutting path 213 on the side of another electrode tab), and finally returns to point E along another second avoidance segment 142 of the avoidance recess 14 (corresponding to the cutting path 212 at the root of the electrode tab). This completes one electrode tab cutting cycle; the extension direction of the avoidance recess 14 is also... Figure 6 The direction indicated by the dotted line in the diagram; where "the first end of the two first avoidance segments 141" is also... Figure 6 The end where points C and F are located, "the second end of the two first avoidance segments 141", that is Figure 6 Points E and D are located at one end.
[0069] Then combine Figure 3 The outline of the middle electrode is explained. As the electrode strip 400 moves at a constant speed V from top to bottom in the diagram, the movement of the laser cutting head 200 from point C to point D corresponds to... Figure 3 The electrode side 413 is located on the lower side; the laser cutting head 200 moves from point D to point E, corresponding to... Figure 3The electrode head 411 is located on the right side; the laser cutting head 200 moves from point E to point F, corresponding to... Figure 3 The upper side of the electrode 413; the laser cutting head 200 moves from point F to point C, corresponding to... Figure 3 The middle part is located at the root of the upper ear 412.
[0070] The main function of the "avoidance recess 14" is to avoid the focal point of the laser cutting head 200. Therefore, the avoidance recess 14 has a certain depth at least in the orientation of the supporting end face 12. Specifically, the avoidance recess 14 can be an avoidance groove or a hollow area with a certain contour. This hollow area can also have other parts besides the first avoidance section 141 and the second avoidance section 142, for example... Figure 7 As shown, the clearance recess 14 can be a clearance opening 13. The outline of the clearance opening 13 is composed of two first clearance segments 141 and two second clearance segments 142. This embodiment does not limit this. The two first clearance segments 141 and the two second clearance segments 142 can extend along a straight line, or they can have a certain curvature. This embodiment does not limit this.
[0071] The technical solution provided in this application includes a support body 100 with a support end face 12. When the support body 100 is applied to an electrode tab die-cutting equipment, the support body 100 can be positioned on the other side of the electrode strip 400 relative to the laser cutting head 200, and provides support for the electrode strip 400 through its support end face 12. This reduces the influence of environmental factors on the electrode strip 400. During the process of the laser cutting head 200 cutting the electrode strip 400 toward the support end face 12, the problem of the electrode strip 400 shaking is significantly improved, and the laser cutting head 200 is less likely to defocus, thereby ensuring cutting accuracy and cutting quality.
[0072] Based on this, the support end face 12 of the support body 100 is also formed with a relief recess 14. The relief recess 14 is matched with the reciprocating cutting path 210 of the laser cutting head 200, so that the focal point of the laser cutting head 200 always corresponds to the relief recess 14. Under the relief action of the relief recess 14, the position of the laser beam of the laser cutting head 200 acting on the support body 100 is deviated from its focal point. The support body 100 is not easily damaged by the laser cutting and generates impurities and dust, which can improve the problem of the electrode strip 400 being contaminated.
[0073] Furthermore, the two first avoidance segments 141 of the avoidance recess 14 correspond to the two tab side cutting paths 213 in the reciprocating cutting path 210 of the laser cutting head 200. Since the two first avoidance segments 141 are intersected in the middle, it means that the laser cutting head 200 has a longer cutting stroke when cutting the two tab sides 413. The longer cutting stroke is beneficial to controlling the cutting accuracy of the laser cutting head 200.
[0074] Please see Figure 8 and Figure 9 In some embodiments, a dust collection chamber 11 is formed inside the support 100; the bottom of the avoidance recess 14 is connected to the dust collection chamber 11.
[0075] Since the supporting end face 12 is located in the first direction X, the opening of the avoidance recess 14 also faces the first direction X. The bottom of the avoidance recess 14 should correspond to its opening in the first direction X. That is, the bottom of the avoidance recess 14 is connected to the dust collection chamber 11 along the first direction X. In other words, the avoidance recess 14 and the dust collection chamber 11 coincide in the first direction X. Compared with the avoidance recess 14, the "dust collection chamber 11" should have a larger internal space. Therefore, the dust collection chamber 11 also has the function of collecting dust generated during the cutting process. In order to realize the collection of cutting dust by the dust collection chamber 11, it is possible to consider setting the supporting end face 12 upward. In this way, the dust generated during the cutting process can fall into the dust collection chamber 11 spontaneously under the action of gravity. Of course, other means can also be used to assist the dust collection chamber 11 in collecting dust. This embodiment does not limit this.
[0076] In the above technical solution, a dust collection chamber 11 is formed inside the support 100, and the bottom of the avoidance recess 14 is connected to the dust collection chamber 11, so that the metal dust generated after the electrode strip 400 is cut for a long time can fall into the dust collection chamber 11 through the avoidance recess 14 and be collected, which is conducive to maintaining the cleanliness of the production environment.
[0077] Please see Figure 4 , Figure 5 and Figure 7 In some embodiments, the support body 100 includes a support body 1 and a support portion 2. A dust collection chamber 11 is formed in the support body 1. The support body 1 has a support end face 12. The support end face 12 has an avoidance opening 13 communicating with the dust collection chamber 11. The support portion 2 is at least partially disposed in the avoidance opening 13. There is a gap between the support portion 2 and the sidewall of the avoidance opening 13 to define an avoidance recess 14. The support portion 2 is used to support the electrode strip 400.
[0078] It should be noted that "the support part 2 is at least partially disposed in the clearance opening 13" includes situations where the support part 2 is completely located in the clearance opening 13 and is connected to the support body 1 by means of other connecting structures to obtain fixation, or where only a part of the support part 2 is located in the clearance opening 13 and the other part of the structure extends into the dust collection chamber 11 to obtain fixation. This embodiment does not limit this. It should also be noted that there is a gap between the support part 2 and the side wall of the clearance opening 13 to define the clearance recess 14. This means that the outline of the clearance opening 13 in the projection of the first direction X participates in the formation of the clearance recess 14. Since the clearance recess 14 has two intersecting first clearance segments 141, it means that the part of the support part 2 that is at least located in the clearance opening 13 needs to be divided into two support parts by the two first clearance segments 141, such as... Figures 4 to 6 As shown.
[0079] In the above technical solution, a support part 2 is provided in the dust collection chamber 11. The support part 2 is at least partially provided in the avoidance opening 13. The support part 2 and the support end face 12 have the same function and can both participate in supporting the electrode strip 400, ensuring that the support body 100 has the largest possible support area and improving the support effect of the support body 100.
[0080] Please see Figure 9 In some embodiments, the support portion 2 extends along the first direction X, and the support portion 2 is integrally connected to the support body 1 at one end of the dust collection chamber 11.
[0081] Since the support end face 12 faces the first direction X and is used to support the electrode strip 400, after the support body 100 is installed on the electrode die-cutting equipment, the support body 100 is usually opposite to the laser cutting head 200 in the first direction X, that is, the laser cutting head 200 emits a laser beam along the first direction X; the support part 2 extends along the first direction X, which means that only part of the structure of the support part 2 is in the clearance opening 13, and part of the structure extends into the dust collection chamber 11. For example, the support part 2 has a support end 21 and a connecting end opposite to each other in the first direction X. The support end 21 is in the clearance opening 13 and has a gap with the side wall of the clearance opening 13 to define the clearance recess 14. The connecting end is in the dust collection chamber 11 and is integrally connected to the support body 1. There are many ways to integrally connect the support part 2 and the support body 1. For example, they can be integrally connected by welding or by casting. Specifically, the support part 2 and the support body 1 are integrally formed by 3D printing.
[0082] In the above technical solution, based on the support end face 12 in the first direction X, the support part 2 is extended along the first direction X, and is integrally connected to the support body 1 through one end of the support part 2 in the dust collection cavity 11. Its beneficial effect is that after the support body 100 is installed on the electrode die-cutting equipment, the extension direction of the support part 2 is the same as the light output direction of the laser cutting head 200, so that the support part 2 can avoid the reciprocating cutting path 210 of the laser cutting head 200, and the support part 2 is less affected by the laser cutting head 200.
[0083] In some embodiments, the inner wall of the dust collection chamber 11 is provided with a light-absorbing surface layer 111.
[0084] "Light-absorbing surface 111" refers to a surface structure that has an absorption effect on laser light. The light-absorbing surface 111 can exhibit the light-absorbing effect in terms of material, which is usually a light-absorbing material. A light-absorbing material is a material that can effectively absorb incident light waves and convert them into other forms of energy, thereby minimizing the reflection of light. There are many types of such materials, such as matte coatings and blackened metals. The light-absorbing surface 111 can also exhibit the light-absorbing effect at the physical level. For example, the light-absorbing surface 111 can adopt a porous structure.
[0085] In the above technical solution, a light-absorbing surface layer 111 is provided on the inner wall of the dust collection chamber 11. The light-absorbing surface layer 111 can absorb the laser beam that penetrates the electrode strip 400 and avoids the recess 14 and enters the dust collection chamber 11, which can reduce the reflection effect of the laser beam and limit the degree of damage to the internal structure of the support 100 by the emitted laser beam, thereby improving the service life of the support 100.
[0086] Please see Figures 7 to 9 In some embodiments, the support body 100 is provided with a negative pressure interface 15, which is connected to the dust collection chamber 11.
[0087] The "negative pressure interface 15" is connected to the dust collection chamber 11. Its function is to connect with an external negative pressure generating device and continuously extract gas from the dust collection chamber 11 so that the air pressure in the dust collection chamber 11 is lower than the air pressure of the external environment.
[0088] In the above technical solution, a negative pressure interface 15 connected to the dust collection chamber 11 is provided in the support body 100, which can provide a negative pressure environment for the dust collection chamber 11. The avoidance recess 14 is also connected to the dust collection chamber 11. Therefore, the metal dust generated by the laser cutting head 200 cutting the electrode strip 400 at the avoidance recess 14 can spontaneously enter the dust collection chamber 11 under the action of negative pressure, further improving the dust collection efficiency of the dust collection chamber 11.
[0089] Please see Figure 8 and Figure 9In some embodiments, the support body 100 is also provided with a fresh air inlet 16, which is connected to the dust collection chamber 11.
[0090] This embodiment does not limit the location or cross-sectional area of the fresh air inlet 16. It can be understood that as long as the fresh air inlet 16 exists, regardless of whether its cross-sectional area is large or small, it can contribute to the connection between the dust collection chamber 11 and the external environment. While reducing the pressure difference between the dust collection chamber 11 and the external environment, it can also continuously provide clean fresh air to the dust collection chamber 11.
[0091] In the above technical solution, the setting of the fresh air inlet 16 allows the negative pressure interface 15 to be connected to the external environment, which helps to reduce the negative pressure at the avoidance recess 14, reduce the resistance generated by the dust suction effect of the support body 100 on the electrode material strip 400, improve the problem that the electrode material strip 400 is prone to wear with the support body 100, and the fresh air drawn in from the fresh air inlet 16 can continuously carry away the metal dust in the dust collection chamber 11.
[0092] In conjunction with the above embodiment in which a light-absorbing surface layer 111 is formed on the inner wall of the dust collection chamber 11, by setting a fresh air inlet 16 and a negative pressure interface 15, the flowing airflow can also carry away the heat generated in the dust collection chamber 11 due to the absorption of laser light, thereby reducing the temperature of the support 100.
[0093] Please see Figure 8 and Figure 9 In some embodiments, the fresh air inlet 16 is formed at one end of the support body 100 away from the support end face 12.
[0094] Since the support end face 12 is used to support the electrode strip 400, "the end of the support body 100 away from the support end face 12" can also be understood as the end of the support body 100 that is far away from the electrode strip 400 during the laser cutting process.
[0095] In the above technical solution, the fresh air inlet 16 is formed at the end of the support body 100 away from the electrode material strip 400, that is, the air intake direction of the fresh air inlet 16 is set away from the electrode material strip 400, which helps to reduce the impact of the environmental wind field generated by the air intake of the fresh air inlet 16 on the electrode material strip 400.
[0096] In some embodiments, the negative pressure port 15 and the fresh air inlet 16 are respectively located on both sides of the avoidance recess 14 along the second direction Y; wherein the first direction X and the second direction Y are intersected.
[0097] It should be noted that the first direction X and the second direction Y mentioned in this embodiment are two intersecting directions. In principle, the included angle between the first direction X and the second direction Y can be any value between 0° and 180° (excluding 0° and 180°). However, under normal circumstances, the first direction X and the second direction Y are perpendicular to each other, that is, their included angle is 90°. At the same time, this embodiment only limits "the negative pressure interface 15 and the fresh air inlet 16 to be located on both sides of the avoidance recess 14 along the second direction Y", and does not limit the specific positions of the negative pressure interface 15 and the fresh air inlet 16 on the support body 100.
[0098] In the above technical solution, since the avoidance recess 14 is formed on the support end face 12, and the support end face 12 is located in the first direction X, the negative pressure interface 15 and the fresh air inlet 16 are respectively located on both sides of the avoidance recess 14 along the second direction Y. This is intended to ensure that the air entering the dust collection chamber 11 from the fresh air inlet 16 can fully pass through the position where the avoidance recess 14 is located, and then be discharged from the dust collection chamber 11 through the negative pressure interface 15, thereby ensuring that the airflow can fully flush the position where the avoidance recess 14 is located, thereby improving the suction efficiency of the negative pressure interface 15 for cutting dust.
[0099] Please see Figure 1 and Figure 2 This application also proposes an electrode die-cutting device, which includes a support body 100, a laser cutting head 200, and a drive assembly 300. The specific structure of the support body 100 is as described in the above embodiments. Since this electrode die-cutting device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here. The support end face 12 of the support body 100 is used to support the electrode strip 400. The laser cutting head 200 is disposed opposite to the support end face 12 of the support body 100. The laser cutting head 200 has a reciprocating cutting path 210, which matches the extension direction of the avoidance recess 14 of the support body 100. The drive assembly 300 is configured to drive the electrode strip 400 through the support body 100 in a third direction.
[0100] The drive assembly 300 is configured to drive the electrode strip 400 through the support 100 in a third direction. There are many specific structural types of the drive assembly 300, the most common of which consists of two drive rollers 310, such as... Figure 1 As shown, the two drive rollers 310 are used to wind the electrode strip 400 to ensure that the electrode strip 400 passes through the support body 100 at a uniform speed in the third direction. The driving force of the drive assembly 300 can come from the drive rollers 310 or the electrode winding equipment or electrode stacking equipment downstream of the electrode tab die-cutting equipment. This embodiment does not limit this.
[0101] This application discloses a support 100, which includes a support body 1 and a support portion 2. The support body 1 has a dust collection chamber 11 and a support end face 12 in a first direction X. The support end face 12 has a clearance opening 13 communicating with the dust collection chamber 11. A light-absorbing surface layer 111 is formed on the inner wall of the dust collection chamber 11 opposite to the clearance opening 13. The support portion 2 is disposed within the dust collection chamber 11 and extends along the first direction X. One end of the support portion 2 is integrally connected to the inner wall of the dust collection chamber 11, and the other end of the support portion 2 extends to the clearance opening 13, forming a support end 21. The surface of the support end 21 and the support end face 12 of the support body 1 are used to support the electrode strip 400. A gap exists between the support end 21 and the side wall of the clearance opening 13, defining a clearance recess 14. The clearance recess 14 has two first clearance segments 141 in its extending direction. The two second avoidance sections 142 and the two first avoidance sections 141 are intersected in the middle. One of the second avoidance sections 142 is connected to the first end of the two first avoidance sections 141, and the other second avoidance section 142 is connected to the second end of the two first avoidance sections 141. The two first avoidance sections 141 are respectively used to correspond to the two electrode side cutting paths 213 in the reciprocating cutting path 210, and the two second avoidance sections 142 are respectively used to correspond to the electrode head cutting path 211 and the electrode root cutting path 212 in the reciprocating cutting path 210. The support body 1 is provided with a negative pressure interface 15 and a fresh air inlet 16. The negative pressure interface 15 and the fresh air inlet 16 are respectively connected to the dust collection chamber 11 and are located on both sides of the avoidance recess 14 along the second direction Y. The first direction X and the second direction Y are intersected. The fresh air inlet 16 is located at the end of the support body 1 away from the support end face 12.
[0102] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A support body for a tab die-cutting device with a laser cutting head, characterized in that, The support body has a support end face in a first direction, the support end face is used to support the electrode strip, and the support end face is formed with a relief recess, the relief recess is used to match the reciprocating cutting path of the laser cutting head; The clearance recess has two first clearance segments and two second clearance segments in its extending direction. The middle of the two first clearance segments is intersected. One of the second clearance segments is connected to the first end of the two first clearance segments, and the other second clearance segment is connected to the second end of the two first clearance segments. The two first clearance segments are respectively used to correspond to the two electrode side cutting paths in the reciprocating cutting path, and the two second clearance segments are respectively used to correspond to the electrode head cutting path and the electrode root cutting path in the reciprocating cutting path.
2. The support as described in claim 1, characterized in that, The support body has a dust collection chamber inside; The bottom of the avoidance recess is connected to the dust collection chamber.
3. The support as described in claim 2, characterized in that, The support includes: A supporting body, wherein the dust collection chamber is formed in the supporting body, the supporting body has the supporting end face, and the supporting end face has a clearance opening communicating with the dust collection chamber; and, A support portion is at least partially disposed in the clearance opening, and there is a gap between the support portion and the sidewall of the clearance opening to define the clearance recess. The support portion is used to support the electrode strip.
4. The support as described in claim 3, characterized in that, The support portion extends along the first direction and is integrally connected to the support body at one end of the dust collection chamber.
5. The support body as described in claim 2, characterized in that, The inner wall of the dust collection chamber is provided with a light-absorbing surface layer.
6. The support body according to any one of claims 2 to 5, characterized in that, The support body is provided with a negative pressure interface, which is connected to the dust collection chamber.
7. The support as described in claim 6, characterized in that, The support body is also provided with a fresh air inlet, which is connected to the dust collection chamber.
8. The support as described in claim 7, characterized in that, The fresh air inlet is formed at one end of the support body away from the support end face.
9. The support as described in claim 7, characterized in that, The negative pressure interface and the fresh air inlet are respectively located on both sides of the relief recess along the second direction; The first direction and the second direction are intersecting.
10. A tab die-cutting device, characterized in that, include: The support body according to any one of claims 1 to 9, wherein the support end face of the support body is used to support the electrode strip; A laser cutting head is disposed opposite to the support end face of the support body. The laser cutting head has a reciprocating cutting path, and the reciprocating cutting path matches the extension direction of the avoidance recess of the support body. as well as, The drive assembly is configured to drive the electrode strip through the support in a third direction.