Nicking device and nicking equipment

Abstract

The utility model discloses a nicking device and nicking equipment, the nicking device comprises a support body, the support body is provided with a mounting cavity, and at least one side of the mounting cavity in the width direction is open to form an opening; and the nicking brush is movably arranged in the mounting cavity in the width direction of the mounting cavity, and sawteeth are arranged on the side, facing the opening, of the nicking brush. According to the nicking device, the mounting cavity is formed in the supporting body, the nicking brush is movably arranged in the mounting cavity in the width direction of the mounting cavity, and the saw teeth are arranged on the side, facing the opening, of the nicking brush, so that the nicking brush can move relative to the supporting body, and the distance between the saw teeth and the workpiece to be machined can be adjusted; according to the nicking device, the nicking depth can be adjusted and controlled, the machining requirements of to-be-machined workpieces of different shapes and sizes or the requirements of different machining depths are met, the nicking operation is more flexible and accurate, the situation that the nicking device is overall adjusted can be avoided, and the machining efficiency can be improved.

Description

Technical Field

[0001] This utility model relates to the field of production equipment technology, and more specifically, to a scoring device and a scoring equipment. Background Technology

[0002] In related technologies, when a scoring device processes a workpiece, it can only meet one scoring requirement, making the scoring process inflexible. Utility Model Content

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one objective of the present invention is to provide a scoring device that can control the scoring depth and is easy to adjust.

[0004] Another objective of this invention is to provide a marking device having the above-mentioned marking apparatus.

[0005] A scoring device according to an embodiment of the present invention includes: a support body having a mounting cavity, at least one side of the mounting cavity being open in the width direction to form an opening; and a scoring brush movably disposed within the mounting cavity along the width direction of the mounting cavity, the scoring brush having serrations on the side facing the opening.

[0006] According to the present invention, the scoring device has a mounting cavity on the support body, and the scoring brush is movably disposed in the mounting cavity along the width direction of the mounting cavity. The scoring brush has serrations on the side facing the open opening, so that the scoring brush can move relative to the support body, thereby adjusting the distance between the serrations and the workpiece to be processed, realizing the control of the scoring depth, meeting the processing needs of various workpieces with different shapes and sizes or different processing depths, making the scoring operation more flexible and precise, and avoiding the need to adjust the scoring device as a whole, which is conducive to improving processing efficiency.

[0007] In addition, the scoring device according to the above embodiments of the present invention may also have the following additional technical features:

[0008] According to some embodiments of the present invention, the scoring device has a first gear portion on one side of the cavity wall in the thickness direction of the mounting cavity, and a second gear portion on one side in the length direction of the scoring brush. The first gear portion and the second gear portion are opposite to each other along the thickness direction of the mounting cavity. The scoring device further includes a gear component that meshes with the first gear portion and the second gear portion.

[0009] According to some embodiments of the present invention, the gear component includes: a gear body, the gear body being located between and meshing with the first gear portion and the second gear portion; and an extension portion, the extension portion being connected to one side of the gear body and passing through the support body.

[0010] According to some embodiments of the present invention, the support body includes: a support frame; a mounting part, the mounting part being rotatably connected to the support frame, and the mounting cavity being disposed in the mounting part.

[0011] According to some embodiments of the present invention, the support frame is provided with two first connecting shafts spaced apart along the length direction of the support frame. The first connecting shaft has a threaded hole extending through the first connecting shaft in the extending direction. The mounting part is provided with a second connecting shaft. The second connecting shaft has a through hole extending through the second connecting shaft in the extending direction. The mounting part is located between the two first connecting shafts. The through hole is coaxial with the two threaded holes. Fasteners are inserted through the two threaded holes and the through hole.

[0012] According to some embodiments of the present invention, the serrations are a plurality of teeth spaced apart along the length direction of the scoring brush.

[0013] The marking device according to an embodiment of the present invention includes the marking apparatus described in the embodiment of the present invention.

[0014] According to the present invention, the scoring device has a mounting cavity on the support body, and the scoring brush is movably disposed in the mounting cavity along the width direction of the mounting cavity. The scoring brush has serrations on the side facing the open opening, so that the scoring brush can move relative to the support body, thereby adjusting the distance between the serrations and the workpiece to be processed, realizing the control of the scoring depth, meeting the processing needs of various workpieces with different shapes and sizes or different processing depths, making the scoring operation more flexible and precise, and avoiding the need to adjust the scoring device as a whole, which is conducive to improving processing efficiency.

[0015] According to some embodiments of the present invention, the scoring device further includes: a conveying device for conveying a workpiece to be processed; a coating die for spraying coating onto the workpiece to be processed; and a scoring device connected to the coating die, located downstream of the coating die along the moving direction of the workpiece to be processed.

[0016] According to some embodiments of the present invention, the marking device further includes: rollers, wherein there are two rollers, the two rollers are respectively located on opposite sides of the workpiece in the thickness direction, and along the moving direction of the workpiece, the two rollers are located downstream of the marking device, and at least one of the two rollers has a protrusion on its outer peripheral wall, the protrusion extending along the circumferential direction of the roller, and the protrusion and the saw teeth are opposite to each other in the moving direction of the workpiece.

[0017] According to some embodiments of the present invention, the marking device further includes a drying device located downstream of the marking device along the moving direction of the workpiece to be processed, and the workpiece to be processed passing through the drying device.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0020] Figure 1 This is a schematic diagram of the scoring device according to an embodiment of the present utility model;

[0021] Figure 2 This is a schematic diagram of the scoring device according to an embodiment of the present utility model;

[0022] Figure 3 This is a partial structural schematic diagram of the scoring device according to an embodiment of the present utility model;

[0023] Figure 4 This is an exploded view of the scoring device according to an embodiment of the present utility model;

[0024] Figure 5 yes Figure 4 The center circle shows an enlarged structural diagram at point A.

[0025] Figure 6 This is a structural schematic diagram of the mounting portion from one angle according to an embodiment of the present utility model;

[0026] Figure 7 yes Figure 6 The enlarged structural diagram at point B is shown in the middle circle.

[0027] Figure 8 This is a structural schematic diagram of the mounting portion according to another angle of an embodiment of the present utility model;

[0028] Figure 9This is a structural schematic diagram of the support frame according to an embodiment of the present utility model;

[0029] Figure 10 This is a schematic diagram of the coating die head according to an embodiment of the present utility model.

[0030] Figure label:

[0031] 100. Scoring device; 200. Scoring equipment; 300. Workpiece to be processed;

[0032] 10. Support body; 11. Mounting cavity; 12. Riveting part; 101. Support frame; 102. Mounting part; 111. Opening; 112. First gear part;

[0033] 20. Scoring brush; 21. Serrated edge; 22. Second gear section;

[0034] 30. Gear component; 31. Gear body; 32. Extension;

[0035] 41. First connecting shaft; 42. Second connecting shaft; 411. Threaded hole; 421. Through hole;

[0036] 50. Conveying device;

[0037] 60. Coating die head; 61. Riveting groove;

[0038] 70. Roller body; 71. Protrusion;

[0039] 80. Drying device. Detailed Implementation

[0040] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0041] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model.

[0042] In the description of this utility model, "first feature" and "second feature" may include one or more of the features, "multiple" means two or more, "first feature above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them, and "first feature above", "above" and "over" the second feature may include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0043] The scoring device 100 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0044] Reference Figures 2-4 As shown, the scoring device 100 according to an embodiment of the present invention may include: a support body 10 and a scoring brush 20.

[0045] Specifically, the support body 10 is provided with a mounting cavity 11, and the mounting cavity 11 is located in the width direction (e.g. Figure 3 At least one side of the marked brush 20 (in the left-right direction shown in the diagram) is open, forming an opening 111. The marked brush 20 is disposed within the mounting cavity 11. The opening 111 facilitates the installation of the marked brush 20 within the mounting cavity 11, meeting the installation requirements of the marked brush 20 and making installation convenient, thus improving assembly efficiency. The side of the marked brush 20 facing the opening 111 (e.g., the side facing the opening 111) Figure 3 The right side shown in the figure has serrations 21, which can be used to score the workpiece 300 to meet the required processing needs. For example, the serrations 21 can contact the coating area to generate positive scoring.

[0046] Furthermore, the scoring brush 20 is movable along the width direction of the mounting cavity 11. By moving the scoring brush 20 relative to the support body 10, the distance between the saw teeth 21 and the workpiece 300 can be adjusted, thereby controlling the scoring depth. This meets the processing needs of various workpieces 300 with different shapes and sizes or different processing depths, making the scoring operation more flexible and precise. It also avoids the need to adjust the entire scoring device 100, making adjustment simple and improving processing efficiency.

[0047] It should be noted that, for ease of description, the directions such as "left and right" and "up and down" in this utility model are based on the orientation relationships shown in the accompanying drawings, and are not a limitation on the orientation in actual application.

[0048] In some embodiments, such as Figures 2-4As shown, the serration 21 can be shaped into a cone, pyramid, frustum, or prism, etc., to achieve different types of engraving and thus meet different processing requirements. For example, the cross-section of the engraving can be shaped into a trapezoid, semicircle, ellipse, or inverted triangle, etc., to meet different engraving requirements.

[0049] In some embodiments, the shape of the serration cross section can be formed according to the depth of the saw teeth 21 into the workpiece 300, which can meet different processing requirements and avoid structural modifications, thus helping to reduce production costs.

[0050] According to the present invention, the scoring device 100 has a mounting cavity 11 on the support body 10. The scoring brush 20 is movably disposed in the mounting cavity 11 along the width direction of the mounting cavity 11. The scoring brush 20 has serrations 21 on the side facing the open opening 111, so that the scoring brush 20 can move relative to the support body 10. This allows the distance between the serrations 21 and the workpiece 300 to be processed to be adjusted, thereby controlling the scoring depth. This meets the processing needs of various workpieces 300 with different shapes and sizes or different processing depths, making the scoring operation more flexible and precise. It also avoids the need to adjust the scoring device 100 as a whole, which is beneficial to improving processing efficiency.

[0051] In some embodiments of this utility model, such as Figures 3-7 As shown, the thickness direction of the mounting cavity 11 (e.g.) Figure 3 A first gear portion 112 is provided on one side of the cavity wall (shown in the vertical direction), and the scoring brush 20 is provided in the length direction (e.g., in the vertical direction). Figure 2 A second gear section 22 is provided on one side (in the front-back direction shown in the diagram). The first gear section 112 and the second gear section 22 are opposite each other along the thickness direction of the mounting cavity 11. The scoring device 100 also includes a gear component 30, which meshes with the first gear section 112 and the second gear section 22. This meshing and fixing of the gear component 30 with the scoring brush 20 and the support body 10 ensures that the scoring brush 20 is reliably fixed within the mounting cavity 11. Simultaneously, when the gear component 30 rotates, because the first gear section 112 is fixed, the gear component 30 can drive the second gear section 22 to move relative to the first gear section 112, thereby enabling the scoring brush 20 to move relative to the support body 10. This makes the adjustment more precise and reliable, and the structure is simple and easy to manufacture.

[0052] According to some embodiments of this utility model, such as Figure 5 As shown, the gear component 30 includes a gear body 31, which is located between the first gear section 112 and the second gear section 22. The gear body 31 meshes with the first gear section 112 and the second gear section 22, thereby fulfilling the requirements for fixing and meshing the gear component 30 with the first gear section 112 and the second gear section 22.

[0053] In addition, such as Figure 2 and Figure 5 As shown, the gear component 30 also includes an extension 32, which is connected to one side of the gear body 31 and passes through the support body 10, so that the gear body 31 can rotate externally through the extension 32, thereby facilitating the driving and movement of the scoring brush 20 to meet the required adjustment needs, making the adjustment more convenient. In addition, the gear component 30 has a simple structure, which can reduce production costs.

[0054] In some embodiments of this utility model, such as Figures 2-4 , Figures 6-9 As shown, the support body 10 includes a support frame 101 and a mounting part 102. The mounting part 102 is rotatably connected to the support frame 101, and a mounting cavity 11 is provided in the mounting part 102. Therefore, by rotating the mounting part 102 relative to the support frame 101, the angle of the scoring brush 20 can be adjusted, thereby adjusting the angle between the tooth pitch and the workpiece 300. This allows for more diverse scoring requirements, making scoring operations more flexible and precise. Furthermore, it avoids the need to adjust the entire scoring device 100, simplifying adjustment and improving processing efficiency.

[0055] In some embodiments, the angle between the mounting part 102 and the support frame 101 can be adjusted between 90° and 180° to meet different usage and processing requirements, making the scoring device 100 more flexible in operation. For example, in some specific embodiments, the angle between the mounting part 102 and the support frame 101 can be 90°, 120°, 140°, 160°, 180°, etc.

[0056] According to some embodiments of this utility model, such as Figure 4 , Figure 5 and Figure 9 As shown, the support frame 101 is provided with two first connecting shafts 41, which are spaced apart along the length of the support frame 101. Each first connecting shaft 41 has a threaded hole 411 that extends through the first connecting shaft 41 along its extension direction. The mounting part 102 is provided with a second connecting shaft 42, which has a through hole 421 that extends through the second connecting shaft 42 along its extension direction. The mounting part 102 is located between the two first connecting shafts 41, and the through hole 421 is coaxial with the two threaded holes 411. Fasteners pass through the two threaded holes 411 and the through hole 421.

[0057] Therefore, during assembly, the angle of the scoring brush 20 can be adjusted by rotating the mounting part 102 relative to the support frame 101. Once the angle adjustment is complete, the angle is fixed by fasteners, thus achieving fixation between the support frame 101 and the mounting part 102, and simultaneously fixing the angle. This satisfies the required angle adjustment, making adjustment convenient and improving efficiency. Furthermore, the structure is simple and easy to manufacture. For example, the fasteners can be bolts.

[0058] In some embodiments of this utility model, such as Figure 2 and Figure 4 As shown, there are multiple saw teeth 21 (two or more). The multiple saw teeth 21 are spaced apart along the length direction of the scoring brush 20. The multiple saw teeth 21 can meet the needs of processing multiple scoring marks on the workpiece 300, and can meet different processing requirements.

[0059] The scoring device 200 according to an embodiment of the present invention includes a scoring apparatus 100 according to an embodiment of the present invention. Since the scoring apparatus 100 according to an embodiment of the present invention has the aforementioned beneficial technical effects, the scoring device 200 according to an embodiment of the present invention, by providing a mounting cavity 11 on a support body 10, has a scoring brush 20 movably disposed within the mounting cavity 11 along the width direction of the mounting cavity 11. The scoring brush 20 has serrations 21 on the side facing the open opening 111, allowing the scoring brush 20 to move relative to the support body 10. This allows adjustment of the distance between the serrations 21 and the workpiece 300 to be processed, thereby controlling the scoring depth. This meets the processing needs of various workpieces 300 with different shapes and sizes, or the need for different processing depths, making the scoring operation more flexible and precise. Furthermore, it avoids the need for overall adjustment of the scoring apparatus 100, which is beneficial for improving processing efficiency.

[0060] According to some embodiments of this utility model, such as Figure 1 As shown, the scoring device 200 also includes a conveying device 50 and a coating die 60. The conveying device 50 can convey the workpiece 300 to be processed, thus fulfilling the movement requirement of the workpiece 300. The coating die 60 can spray coating onto the workpiece 300 to fulfill the coating requirement of the workpiece 300.

[0061] In addition, such as Figure 1 As shown, the scoring device 100 is connected to the coating die head 60. Along the moving direction of the workpiece 300, the scoring device 100 is located downstream of the coating die head 60, which can fix the scoring device 100 and score the workpiece 300 after it is coated, thus meeting the required processing needs.

[0062] In some embodiments, such as Figures 2-4 , Figure 9 and Figure 10As shown, the coating die head 60 is provided with a riveting groove 61, and both ends of the riveting groove 61 in the length direction pass through the coating die head 60. The scoring device 100 is provided with a riveting part 12, which can slide into the riveting groove 61 through one end in the length direction of the riveting groove 61 and be riveted and fixed to ensure reliable fixation, thereby ensuring that the scoring device 100 and the coating die head 60 are reliably fixed.

[0063] In some embodiments, the extension direction of the groove is parallel to the length direction of the workpiece 300, which can meet the required processing requirements.

[0064] In the context of achieving "carbon peak" and "carbon neutrality", the new energy vehicle industry is developing rapidly. Higher driving range and lower manufacturing costs have become common pursuits in the automotive industry. This has led to a gradual increase in the energy density required for power batteries. The improvement in energy density is achieved through high areal density and high compaction of the positive electrode. However, high areal density and high compaction of the positive electrode have problems such as poor wetting, coating cracking and large cycle expansion.

[0065] In this invention, the positive electrode sheet is scored by the scoring device 200, which provides additional electrolyte wetting paths and space, thereby improving the problems of poor wetting and large cyclic expansion of high surface density positive electrodes to a certain extent. Compared with porous positive electrodes, the scored positive electrodes have higher mechanical properties and avoid the problem of hole cracking. Compared with laser scoring, the scoring device 200 does not require electricity to maintain, which can reduce costs.

[0066] In some embodiments, the positive electrode includes a current collector and an active material. The active material is coated on both sides of the current collector in the thickness direction. Scorees are formed on the active material. These scorees improve electrolyte wetting and delay the expansion of the active material, and also mitigate the adverse effects of thick coating. The scored positive electrode, due to its improved wettability and cycle expansion, can employ a higher areal density design, for example, an areal density in the range of 15 mg / cm³. 2 -26mg / cm 2 Or it can reach 30mg / cm 2 This increases the energy density of power batteries. Under the same energy density design, the required positive and negative current collectors can be reduced, thus lowering production costs. The positive electrode is suitable for lithium iron phosphate (LiFePO4, LFP) and ternary lithium battery main material formulations.

[0067] In some embodiments, the current collector can be a plain aluminum foil, a carbon-coated aluminum foil, or a composite current collector, all of which have conductivity, good stability, and high safety, and can meet the required usage requirements.

[0068] In some embodiments, the active material includes lithium iron phosphate, lithium manganese iron phosphate, or nickel cobalt manganese, which can ensure good stability, high safety, long service life, and meet the required usage requirements.

[0069] In some embodiments, the positive electrode coating process involves coating active material onto both sides of the positive electrode current collector in the thickness direction. The side coated first is called side A, and the side coated later is called side B. The active material is sprayed onto the current collector through the coating die 60, and the active material coating comes into contact with the serrations 21 to create grooves. The grooves are divided into three categories depending on the surface on which they are set: the first category is that grooves are set on side A and side B is coated normally; the second category is that side A is coated normally and side B is set with grooves; and the third category is that both side A and side B are set with grooves. All of these can meet the required setup requirements.

[0070] In some embodiments, when both surface A and surface B are provided with grooves, the grooves on surface A and surface B need to be staggered. If the grooves on surface A and surface B are aligned, the shape of the serration 21 used to create the grooves is a non-sharp-angle design to avoid mechanical performance problems of the electrode caused by material shortage on both sides, such as cracking and wrinkling. If a sharp-angle design is required, the ratio of the length of the material-in-place area of ​​the sharp corner of the serration 21 to the thickness of the active material on the same side is 0.1-0.8, which can avoid mechanical performance problems of the electrode caused by material shortage on both sides, such as cracking and wrinkling, and ensure reliable processing. For example, in some specific embodiments, the ratio of the length of the material-in-place area of ​​the sharp corner of the serration 21 to the thickness of the active material on the same side can be 0.1, 0.3, 0.5, 0.7, 0.8, etc.

[0071] In some embodiments, the thickness of the positive electrode can be 60um-200um, so that the positive electrode can meet the required usage requirements. For example, in some specific embodiments, the thickness of the positive electrode can be 60um, 80um, 100um, 150um, 200um, etc.

[0072] In some embodiments, the thickness of the positive electrode can be 60um-200um, so that the positive electrode can meet the required usage requirements. For example, in some specific embodiments, the thickness of the positive electrode can be 60um, 80um, 100um, 150um, 200um, etc.

[0073] In some embodiments, the depth of the groove can be 0um-190um to meet different setting requirements. For example, in some specific embodiments, the depth of the groove can be 0um, 10um, 50um, 80um, 100um, 150um, 190um, etc.

[0074] In some embodiments, the ratio between the depth of the groove and the thickness of the positive electrode is 0-0.95, which allows the groove to improve electrolyte wetting and delay the expansion of the active material while avoiding any impact on capacity, thus meeting the required usage requirements. For example, in some specific embodiments, the ratio between the depth of the groove and the thickness of the positive electrode can be 0, 0.2, 0.5, 0.8, 0.9, 0.95, etc.

[0075] In some embodiments, the distance between the tip of the saw tooth 21 and the current collector is 10um-300um, which can meet different depth requirements, ensure reliable processing, and avoid damage to the current collector, thus ensuring reliable processing. For example, in some specific embodiments, the distance between the tip of the saw tooth 21 and the current collector can be 10um, 50um, 100um, 150um, 200um, 250um, 300um, etc.

[0076] In some embodiments, the width of the groove can be 0mm-3mm, which can avoid the adverse effect of excessively wide grooves on the performance of the battery cell and meet the required usage requirements. For example, in some specific embodiments, the width of the groove can be 0mm, 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, etc.

[0077] In some embodiments of this utility model, such as Figure 1 As shown, the scoring device 200 also includes two rollers 70, which are located on opposite sides of the workpiece 300 in the thickness direction. Along the moving direction of the workpiece 300, the two rollers 70 are located downstream of the scoring device 100. The two rollers 70 can roll and press the workpiece 300 to achieve compaction and meet the required processing needs.

[0078] In related technologies, one side of the workpiece in the thickness direction is the normal thickness material area, and the other side in the thickness direction is the etched area. During the rolling process, due to the lack of material in the etched area, the normal thickness material area is subjected to greater force, while the etched area is subjected to less force, resulting in uneven force distribution. This causes the normal thickness material area to migrate to the etched area, which easily leads to reduced compaction on the back side of the etched area and ineffective compaction.

[0079] For example, when the workpiece is a positive electrode sheet, because the material area on the back side of the notch is thicker, during normal rolling, the material area on the back side of the notch occupies space in the notch area to release excess stress. This causes the current collector in this area to bend towards the notch side, resulting in problems such as current collector wrinkles and local cracking of the active material area. In addition, when the current collector is subjected to sufficient force, the active material in the notch area is prone to separate from the current collector, which obstructs the electron transport path, increases the impedance of the cell, and thus affects the performance of the cell.

[0080] Therefore, in this utility model, such as Figure 1 As shown, at least one of the two rollers 70 has a protrusion 71 on its outer peripheral wall. The protrusion 71 extends along the circumferential direction of the roller 70, and the protrusion 71 and the sawtooth 21 are opposite to each other in the moving direction of the workpiece 300. Thus, when the workpiece 300 is rolled, the position of the protrusion 71 corresponds to the score, which facilitates the protrusion 71 to shape the score and fully compact the score area. The protrusion 71 can also fill the material shortage area, so that the two sides of the workpiece 300 are subjected to balanced force in the thickness direction. This ensures that the compaction density of the workpiece 300 is consistent throughout, avoiding problems such as uneven force and deformation caused by material shortage at the score during rolling. For example, when the workpiece 300 is a positive electrode sheet, it can effectively avoid problems such as reduced compaction on the back side of the score, wrinkling of the current collector, cracking of the active material, and peeling of the active material from the current collector.

[0081] In some embodiments, such as Figure 1 As shown, there are multiple scratches, and the protrusions 71 can be multiple ones that correspond one-to-one with the scratches. Multiple protrusions 71 can fill multiple scratches, ensuring that the workpiece 300 is reliably compacted at all points.

[0082] According to some embodiments of this utility model, such as Figure 1 As shown, the scoring device 200 also includes a drying device 80. Located downstream of the scoring device 100 along the moving direction of the workpiece 300, the drying device 80 passes through the drying device 80. The drying device 80 ensures that the coating sprayed onto the workpiece 300 by the coating die 60 dries quickly, improving production efficiency and preventing deformation or peeling during subsequent processing. For example, the scoring device 200 can be an oven.

[0083] In some embodiments of the scoring device 200, including the roller body 70, such as Figure 1 As shown, the drying device 80 is located between the scoring device 100 and the roller 70, so that the workpiece 300 can be scored after spraying. The scored workpiece 300 is then baked to meet the required processing requirements. Since the paint on the workpiece 300 is in a wet film state when the scoring brush 20 makes the scoring, the paint has fluidity before drying after scoring the workpiece 300, which causes the scoring shape to be slightly deformed. The protrusion 71 can correct the scoring shape and achieve the shaping of the scoring, which helps to improve the pass rate.

[0084] In some embodiments, the processing flow of the workpiece 300 on the scoring device 200 is as follows: coating surface A of the workpiece 300 through the coating die head 60 - baking surface A through the drying device 80 - rolling up the workpiece 300 - coating surface B of the workpiece 300 through the coating die head 60 - baking surface B through the drying device 80 - rolling the workpiece 300 through two rollers 70 - die cutting, thereby completing the processing of the workpiece 300 on the scoring device 200 and meeting the required processing requirements.

[0085] Other configurations and operations of the scoring device 100 and scoring apparatus 200 according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0086] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0087] In the description of this specification, the references to terms such as "embodiment," "specific embodiment," and "example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0088] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A scoring device, characterized in that, include: A support body, wherein the support body is provided with a mounting cavity, and at least one side of the mounting cavity in the width direction is open to form an opening; A scoring brush is movably disposed within the mounting cavity along the width direction of the mounting cavity, and the scoring brush has serrations on the side facing the open opening.

2. The scoring device according to claim 1, characterized in that, A first gear portion is provided on the cavity wall on one side of the mounting cavity in the thickness direction, and a second gear portion is provided on one side of the scoring brush in the length direction. The first gear portion and the second gear portion are opposite to each other along the thickness direction of the mounting cavity. The scoring device further includes: A gear component that meshes with the first gear portion and the second gear portion.

3. The scoring device according to claim 2, characterized in that, The gear component includes: A gear body, which is located between the first gear portion and the second gear portion and meshes with the first gear portion and the second gear portion; An extension portion is connected to one side of the gear body and passes through the support body.

4. The scoring device according to claim 1, characterized in that, The supporting body includes: Support frame; The mounting part is rotatably connected to the support frame, and the mounting cavity is located in the mounting part.

5. The scoring device according to claim 4, characterized in that, The support frame is provided with two first connecting shafts spaced apart along the length of the support frame. The first connecting shaft has a threaded hole extending through the first connecting shaft in the extension direction. The mounting part is provided with a second connecting shaft. The second connecting shaft has a through hole extending through the second connecting shaft in the extension direction. The mounting part is located between the two first connecting shafts. The through hole is coaxial with the two threaded holes. Fasteners are inserted through the two threaded holes and the through hole.

6. The scoring device according to claim 1, characterized in that, The serrations are multiple serrations spaced apart along the length of the scoring brush.

7. A scoring device, characterized in that, Includes the scoring device according to any one of claims 1-6.

8. The scoring device according to claim 7, characterized in that, Also includes: A conveying device for conveying parts to be processed; A coating die head is used to spray coating onto the workpiece. A scoring device is connected to the coating die head and is located downstream of the coating die head along the moving direction of the workpiece.

9. The scoring device according to claim 8, characterized in that, Also includes: The rollers are two in number, and the two rollers are respectively located on opposite sides of the workpiece in the thickness direction. Along the moving direction of the workpiece, the two rollers are located downstream of the scoring device. At least one of the rollers has a protrusion on its outer peripheral wall. The protrusion extends along the circumferential direction of the roller and is opposite to the saw teeth in the moving direction of the workpiece.

10. The scoring device according to claim 8, characterized in that, Also includes: A drying device is located downstream of the scoring device along the direction of movement of the workpiece, and the workpiece is inserted through the drying device.

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