Cutting device and pole piece coating equipment

Abstract

The utility model provides a cutting device and pole piece coating equipment, the cutting device is arranged below a roller and used for cutting a to-be-cut film on the roller, and the cutting device comprises a mounting frame, a cutter assembly and a lifting driving structure; the cutter assembly is arranged on the mounting frame; the lifting driving structure is connected with the mounting frame and used for driving the mounting frame to move in the vertical direction so as to adjust the distance between the cutter assembly and the to-be-cut film, the distance between the cutter assembly and the to-be-cut film can be adjusted according to the actual situation, the relative position of the cutter assembly and the to-be-cut film is kept at a proper cutting point, and the cutting efficiency of the to-be-cut film is improved. According to the cutting device, the pole piece can be cut off, damage caused by contact with the roller is avoided, the cutting accuracy and safety are ensured, the distance between the cutter assembly and the to-be-cut film is accurately adjusted by controlling the vertical movement of the mounting frame through the lifting driving structure, and the roller is effectively prevented from being damaged by the cutter.

Description

Technical Field

[0001] The present application relates to the field of battery production technology, and in particular to a cutting device and electrode coating equipment. Background Art

[0002] In the battery production process, electrode dry coating is an extremely critical link. In the common dry coating process, after the electrode is formed into a film on the heated roller, before it is combined with the composite foil, a cutting device is needed to cut the irregular parts in the width direction of the electrode. However, the diameter of the roller will change after heating, and the gap of the roller will also be adjusted according to the process requirements, making it difficult to accurately control the cutting device and ensure that the cutting device can cut the electrode without damaging the roller, which is easy to damage the roller. Utility Model Content

[0003] The present application discloses a cutting device and a pole piece coating device, which can avoid damaging the roller during the cutting process as much as possible.

[0004] In order to achieve the above-mentioned purpose, the present application discloses a cutting device, which is arranged below the roller and is used to cut the film to be cut on the roller. The cutting device includes:

[0005] Mounting rack;

[0006] a cutter assembly, the cutter assembly being arranged on the mounting frame;

[0007] A lifting drive structure is connected to the mounting frame, and is used to drive the mounting frame to move in a vertical direction to adjust the distance between the cutter assembly and the film to be cut.

[0008] Optionally, the cutter assembly includes a mounting part, a cutter and an angle adjustment structure, the mounting part is arranged on the mounting frame, the cutter and the mounting part are rotatably connected via the angle adjustment structure, and the angle adjustment structure is used to adjust the inclination angle of the cutter blade so that the cutter blade fits with the film to be cut on the surface of the roller.

[0009] Optionally, the angle adjustment structure includes:

[0010] a cutter seat, on which the cutter is arranged;

[0011] a spring sheet, the spring sheet comprising a horizontal extension portion and a vertical extension portion connected to each other, the vertical extension portion being connected to the mounting member, and the cutter seat being fixed relative to the horizontal extension portion;

[0012] a wedge-shaped member movably mounted on the mounting member along a first horizontal direction and located between the mounting member and the horizontal extension portion in the vertical direction, the wedge-shaped member comprising a guide slope, and the guide slope increases in height along the first horizontal direction, the first horizontal direction being perpendicular to the axis of the roller;

[0013] An adjusting member is fixed relative to the horizontal extension portion and is located between the guiding inclined surface and the horizontal extension portion in a vertical direction.

[0014] Optionally, the adjusting member is cylindrical, and the outer peripheral surface of the adjusting member abuts against the horizontal extension portion and the guiding inclined surface respectively.

[0015] Optionally, the spring sheet, the wedge-shaped member and the adjusting member are fixedly connected by threaded fasteners.

[0016] Optionally, the cutting device further comprises a rolling support rotatably arranged on the mounting frame, the rotation axis of the rolling support being parallel to the axis of the roller, and the outer peripheral surface of the rolling support being used to abut against the roller during the cutting process of the cutting device.

[0017] Optionally, the mounting frame includes a connecting member and a support base, one end of the connecting member is connected to the lifting drive structure, and the other end is connected to the support base, and the cutter assembly and the rolling support member are mounted on the support base;

[0018] The cutting device further comprises an adaptive structure, which is arranged between the support base and the connecting member, and is used to make the outer peripheral surface of the rolling support member close to the roller.

[0019] Optionally, the adaptive structure includes an elastic member, one end of the elastic member is connected to the connecting member, and the other end of the elastic member is connected to the support base, so that a floating connection is formed between the connecting member and the support base.

[0020] Optionally, the adaptive structure further includes a rotation shaft, which is fixedly disposed on the connecting member, and an extension direction of the rotation shaft is parallel to the rotation axis of the rolling support member, and the support base is rotatably disposed on the rotation shaft.

[0021] Optionally, a limiting member is provided on the connecting member, and the limiting member is used to limit the rotation angle of the supporting base.

[0022] Optionally, the cutter assembly is slidably disposed on the mounting frame along a second horizontal direction, and the second horizontal direction is parallel to the extension direction of the roller.

[0023] Optionally, the cutter assemblies include at least two, at least two of the cutter assemblies are arranged at intervals along the horizontal direction, and a spacer is provided between the two adjacent cutter assemblies. One end of the spacer along the first horizontal direction is connected to one of the cutter assemblies, and the other end is connected to the other cutter assembly, so that the two adjacent cutter assemblies maintain a preset distance.

[0024] Optionally, the cutter assembly is further provided with a cleaning piece, which is used to clean the waste edges on the film to be cut after being cut by the cutter assembly.

[0025] The present application also discloses a pole piece coating device, which includes the above-mentioned cutting device.

[0026] Compared with the prior art, the present invention has the following advantages:

[0027] By connecting the lifting drive structure with the mounting frame, the mounting frame can be driven to move in the vertical direction, and the distance between the cutter assembly and the film to be cut can be adjusted according to actual conditions. For example, when the diameter of the roller increases after heating, the height of the mounting frame can be lowered by the lifting drive structure, so that the relative position of the cutter assembly and the film to be cut is maintained at the appropriate cutting point, which can cut off the electrode without contacting the roller and causing damage. For example, when the roller gap changes due to process adjustment, the lifting drive structure can also respond in time and change the height of the cutter assembly accordingly to ensure the accuracy and safety of cutting. The vertical movement of the mounting frame is controlled by the lifting drive structure, so that the distance between the cutter assembly and the film to be cut can be accurately adjusted, which effectively avoids the cutter damaging the roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 is a schematic diagram of a cutting device provided in an embodiment of the present application;

[0030] Figure 2 A schematic diagram of the angle adjustment structure provided in an embodiment of the present application;

[0031] Figure 3 yes Figure 1 A side view of the middle cutter assembly;

[0032] Figure 4 is a schematic diagram of another cutting device provided in an embodiment of the present application;

[0033] Figure 5 It is a schematic diagram of the adaptive structure provided in an embodiment of the present application.

[0034] Description of main reference numerals

[0035] 1- cutting device;

[0036] 100-mounting frame; 110-connecting piece; 120-support base; 130-guide rail; 140-locking structure;

[0037] 200 - Cutter assembly; 210 - Mounting member; 2101 - Scale; 220 - Cutter; 230 - Angle adjustment structure; 2301 - Cutter seat; 2302 - Spring leaf; 23021 - Horizontal extension; 23022 - Vertical extension; 2303 - Wedge; 23031 - Guide ramp; 2304 - Adjustment member; 2305 - Fixing plate; 23051 - Threaded through hole; 240 - Guide slider;

[0038] 300-lifting drive structure;

[0039] 400-rolling support;

[0040] 500-adaptive structure; 510-elastic member; 520-rotating axis; 530-limiting member; 540-bearing; 5401-bearing seat;

[0041] 600-spacer;

[0042] 700-cleaning pieces. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0044] In this application, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe this application and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0045] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0046] Furthermore, the terms "installed," "disposed," "provided with," "connected," and "connected" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections, indirect connections through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0047] Furthermore, the terms "first," "second," and the like are primarily used to distinguish between different devices, elements, or components, which may or may not have the same specific type and configuration, and are not intended to indicate or imply the relative importance or quantity of the devices, elements, or components indicated. Unless otherwise specified, "plurality" means two or more.

[0048] As mentioned in the background technology, the diameter of the roller will change after heating, and the gap of the roller will also be adjusted according to the process requirements, making it difficult to accurately control the cutting device and ensure that the cutting device can cut off the electrode without damaging the roller, which is easy to damage the roller.

[0049] In order to solve the above problems, the present application provides a cutting device and an electrode coating device. The cutting device is arranged under the roller and is used to cut the film to be cut on the roller. The vertical movement of the mounting frame is controlled by the lifting drive structure to achieve precise adjustment of the distance between the cutter assembly and the film to be cut, thereby effectively avoiding the cutter damaging the roller.

[0050] The technical solutions of the cutting device and the electrode coating equipment of the present application will be further described below in conjunction with specific embodiments and drawings.

[0051] See also Figure 1 The present embodiment provides a cutting device 1, which is arranged under the roller and is used to cut the film to be cut on the roller. The cutting device 1 includes: a mounting frame 100, a cutter assembly 200 and a lifting drive structure 300; the cutter assembly 200 is arranged on the mounting frame 100; the lifting drive structure 300 is connected to the mounting frame 100, and the lifting drive structure 300 is used to drive the mounting frame 100 to move in the vertical direction to adjust the distance between the cutter assembly 200 and the film to be cut.

[0052] The vertical direction is Figure 1The direction indicated by the arrow Z.

[0053] By connecting the lifting drive structure 300 with the mounting frame 100, the mounting frame 100 can be driven to move in the vertical direction, and the distance between the cutter assembly 200 and the film to be cut can be adjusted according to actual conditions. For example, when the diameter of the roller increases after heating, the height of the mounting frame 100 can be lowered by the lifting drive structure 300, so that the relative position of the cutter assembly 200 and the film to be cut is maintained at the appropriate cutting point, which can cut off the electrode without contacting the roller and causing damage. For example, when the roller gap changes due to process adjustment, the lifting drive structure 300 can also respond in time and change the height of the cutter assembly 200 accordingly. To ensure the accuracy and safety of cutting, the vertical movement of the mounting frame 100 is controlled by the lifting drive structure 300 to achieve precise adjustment of the distance between the cutter assembly 200 and the film to be cut, effectively avoiding the cutter damaging the roller and ensuring the accurate cutting of the electrode. In addition, the cutter assembly 200 is arranged on the mounting frame 100. This integrated structural design ensures the position stability of the cutter assembly 200. When the lifting drive structure 300 is adjusted in height, the cutter assembly 200 can always remain relatively fixed with the mounting frame 100, thereby ensuring the consistency and reliability of the cutting action.

[0054] In one possible embodiment, see Figure 2 The cutter assembly 200 includes a mounting member 210, a cutter and an angle adjustment structure 230. The mounting member 210 is arranged on the mounting frame 100. The cutter and the mounting member 210 are rotatably connected through the angle adjustment structure 230. The angle adjustment structure 230 is used to adjust the inclination angle of the blade of the cutter 220 so that the blade of the cutter 220 fits with the film to be cut on the surface of the roller.

[0055] Since the cutter 220 is rotatably connected to the mounting member 210 via the angle adjustment structure 230, when the surface of the roller has a certain curvature or unevenness, by adjusting the inclination angle of the blade of the cutter 220, it can be ensured that the blade is closely fitted to the film to be cut, thereby improving the cutting accuracy and quality, and can also better cope with the irregular distribution or special shape of the film to be cut on the roller surface. If the direction of the film to be cut changes in certain parts, the angle adjustment can make the blade of the cutter 220 accurately follow the shape of the film for cutting, avoiding incomplete cutting or over-cutting. In addition, when the blade of the cutter 220 is When the blade fits tightly against the film to be cut, the resistance and deviation during the cutting process can be reduced, making the cutting action smoother, thereby improving production efficiency and ensuring the consistency and stability of each cutting. In addition, for rollers of different specifications and shapes and films to be cut, the best cutting effect can be achieved by adjusting the angle of the cutter, thereby improving the adaptability of the cutting device 1. For example, when processing a film to be cut with a complex curved shape, the angle adjustment structure 230 can make the cutter blade fit the curve perfectly to achieve precise cutting; and for rollers with slightly undulating surfaces, the effective operation of the cutter can also be ensured by adjusting the angle.

[0056] In one possible embodiment, see Figure 2 The angle adjustment structure 230 includes: a cutter seat 2301, a spring sheet 2302, a wedge 2303 and an adjusting member 2304, the cutter 220 is arranged on the cutter seat 2301; the spring sheet 2302 includes a horizontal extension portion 23021 and a vertical extension portion 23022 connected to each other, the vertical extension portion 23022 is connected to the mounting member 210, and the cutter seat 2301 is fixed relative to the horizontal extension portion 23021; ​​it is movably mounted on the mounting member 210 along a first horizontal direction, and is located between the mounting member 210 and the horizontal extension portion 23021 in the vertical direction, the wedge 2303 includes a guide slope 23031, and the height of the guide slope 23031 increases along the first horizontal direction, and the first horizontal direction is perpendicular to the axis of the rolling roller; the adjusting member 2304 is fixed relative to the horizontal extension portion 23021, and is located between the guide slope 23031 and the horizontal extension portion 23021 in the vertical direction.

[0057] Among them, the first horizontal movement is Figure 2 The direction indicated by the arrow X.

[0058] When the inclination angle of the cutter 220 needs to be adjusted, the wedge 2303 is moved along the first horizontal direction. The guide slope 23031 with increasing height acts on the adjusting member 2304. The movement of the wedge 2303 changes the contact position between the guide slope 23031 and the adjusting member 2304, thereby causing the adjusting member 2304 to change in the vertical position. The change in the vertical position of the adjusting member 2304 is transmitted to the horizontal extension 23021 connected thereto, so that the horizontal extension 23021 is moved relative to the vertical extension 23021. 2 has a slight tilt or bend, thereby changing the inclination angle of the cutter seat 2301 fixed relative to the horizontal extension portion 23021, thereby adjusting the cutter angle. This angle adjustment structure 230 is relatively simple, reducing the complexity caused by the simultaneous movement of multiple components. Moreover, since the adjustment member 2304 remains stationary in the first direction, adjustment is mainly achieved through the precise movement of the wedge-shaped member 2303, reducing the instability caused by the matching errors between multiple moving parts, thereby improving the reliability and consistency of the cutter angle adjustment.

[0059] Of course, the angle adjustment structure 230 is not limited to the above structure. For example, the angle adjustment structure 230 can also be a gear rack adjustment structure, which uses the meshing movement of the gear and the rack to drive the cutter seat 2301 to rotate, thereby changing the inclination angle of the blade; or a cam adjustment structure, which uses the change in the profile shape of the cam to push the cutter seat 2301 to move and achieve angle adjustment.

[0060] In one possible embodiment, see Figure 2 The angle adjustment structure 230 also includes a fixing plate 2305 and a threaded member fixedly arranged on the mounting frame 100. The fixing plate 2305 is provided with a threaded through hole 23051 extending along the first horizontal direction. One end of the threaded member is fixedly connected to the wedge member 2303, and the other end extends out of the threaded through hole 23051.

[0061] When the position of the wedge 2303 needs to be adjusted, the operator rotates the threaded member. Since one end of the threaded member is fixedly connected to the wedge 2303, and the other end passes through the threaded through hole 23051 extending along the first horizontal direction on the fixing plate 2305, when the threaded member rotates, under the action of the thread, the threaded member will be displaced along the axial direction (i.e., the first horizontal direction) of the threaded through hole 23051, and since the threaded member is fixed to the wedge 2303, the displacement of the threaded member will drive the wedge to move along the first horizontal direction. By controlling the rotation direction of the threaded member, the wedge 2303 can be moved forward or backward in the first horizontal direction. For example, if the threaded member is rotated clockwise, the threaded member will drive the wedge 2303 to move forward along the first horizontal direction; conversely, when the threaded member is rotated counterclockwise, the wedge 2303 will move backward along the first horizontal direction. This method of driving the wedge 2303 to move by rotating the threaded member can achieve more precise and smooth position adjustment, thereby achieving the purpose of adjusting the inclination angle of the blade.

[0062] In one possible embodiment, see Figure 2 The adjusting member 2304 is cylindrical, and the outer peripheral surface of the adjusting member 2304 abuts against the horizontal extension portion 23021 and the guide inclined surface 23031 respectively.

[0063] The cylindrical adjusting member 2304 has a larger contact area with the horizontal extension portion 23021 and the guide bevel 23031, which can disperse pressure and friction more evenly, which helps to reduce local wear and stress concentration, and extend the service life of the adjusting member 2304 and related components. In addition, the cylindrical shape enables the adjusting member 2304 to roll or slide more smoothly during the abutment process, reduces the movement resistance, and makes the movement of the wedge 2303 more stable and precise, thereby improving the accuracy and stability of the cutter angle adjustment. In addition, the larger contact area and cylindrical shape enable the adjusting member 2304 to better maintain its own position and posture when subjected to external force, reduces deviation and jitter during the adjustment process, and further ensures the accuracy of the cutter angle adjustment. For example, when the wedge 2303 moves rapidly, the cylindrical adjusting member 2304 can effectively buffer the impact force, avoid jamming or jumping, and ensure the continuity and stability of the adjustment process.

[0064] Of course, the adjustment member 2304 is not limited to a cylindrical shape. For example, the adjustment member 2304 can also be conical. The conical adjustment member 2304 can provide different contact areas and pressure distributions when contacting the wedge member 2303 and the horizontal extension portion 23021, thereby achieving a unique adjustment effect; or spherical. The spherical adjustment member 2304 can flexibly roll and rotate in multiple directions, adapt to forces and movements in different directions, and provide a more flexible adjustment method.

[0065] In a possible embodiment, the spring sheet 2302 , the wedge-shaped member 2303 , and the adjusting member 2304 are fixedly connected by threaded fasteners.

[0066] Therefore, the threaded fasteners provide a reliable connection method, which can ensure that the connection between the spring sheet 2302, the wedge piece 2303 and the adjustment piece 2304 is firm and stable. During the adjustment of the cutter angle, the adjustment accuracy will not be reduced or failure will occur due to looseness between the components, thereby improving the working reliability of the entire device. In addition, the threaded connection has a certain degree of detachability, which makes it easy to disassemble and replace the components when they are damaged or need repair, reducing maintenance costs and repair difficulties. In addition, the threaded fasteners can achieve precise tightening force control, so that the tightening degree can be adjusted according to actual needs, which can ensure that the components are tightly connected without causing deformation or damage to the components due to excessive tightening.

[0067] Of course, the spring piece 2302, the wedge-shaped piece 2303 and the adjusting piece 2304 are not limited to being fixedly connected by threaded fasteners. For example, they can also be fixedly connected by welding, riveting, etc.

[0068] In one possible embodiment, see Figure 2 A scale 2101 is provided on the mounting member 210, and a plurality of scales are marked on the scale 2101 for indicating the movement distance of the wedge member 2303 in the first horizontal direction.

[0069] In one possible embodiment, see Figure 1 The cutting device 1 also includes a rolling support member 400 rotatably arranged on the mounting frame 100, the rotation axis of the rolling support member 400 is parallel to the axis of the roller, and the outer peripheral surface of the rolling support member 400 is used to abut against the roller during the cutting process of the cutting device 1.

[0070] As a result, the outer peripheral surface of the rolling support 400 abuts against the roller, which can effectively limit the change in the distance between the mounting frame 100 and the roller. During the cutting process, the mounting frame 100 may be displaced or tilted due to various factors, but the existence of the rolling support 400 plays a role in positioning and restraining, ensuring that the distance between the cutter 220 and the roller is always maintained in a relatively stable range. In addition, the rotation characteristics of the rolling support 400 make its contact with the roller smoother and continuous. Even if there is a slight axial runout or radial runout of the roller during rotation, the rolling support 400 can adapt to these changes through its own rotation, thereby reducing the impact on the position of the mounting frame 100, and then stabilizing the distance between the cutter and the roller, effectively ensuring the stability and accuracy of the distance between the cutter and the roller, and helping to improve the quality and accuracy of cutting.

[0071] In one possible embodiment, see Figure 2 and Figure 3 Along the first horizontal direction, there are two rolling support members 400 spaced apart, and the two rolling support members 400 are in contact with the roller during the cutting process of the cutting device 1.

[0072] In one possible embodiment, see Figure 4 and Figure 5 The mounting frame 100 includes a connecting member 110 and a support base 120. One end of the connecting member 110 is connected to the lifting drive structure 300 and the other end is connected to the support base 120. The cutter assembly 200 and the rolling support member 400 are installed on the support base 120; the cutting device 1 also includes an adaptive structure 500. The adaptive structure 500 is arranged between the support base 120 and the connecting member 110. The adaptive structure 500 is used to make the outer peripheral surface of the rolling support member 400 close to the roller.

[0073] By arranging the adaptive structure 500 between the support base 120 and the connecting member 110, even if there is a certain degree of unevenness on the surface of the roller or a slight shape change occurs during operation, the adaptive structure 500 can automatically adjust the posture of the support base 120 so that the rolling support 400 always maintains close contact with the roller, thereby stabilizing the relative position between the cutter 220 and the roller, ensuring cutting accuracy, and enabling the rolling support 400 to better withstand the pressure from the roller, evenly distribute the load, and extend the service life of the rolling support 400 and related components. For example, during the actual cutting process, if a slight bulge appears locally on the roller, the adaptive structure 500 can respond quickly and adjust the support base 120 so that the rolling support 400 remains close to the roller, avoiding sudden changes in the distance between the cutter and the roller, and ensuring consistency in cutting quality.

[0074] In one possible embodiment, see Figure 4 and Figure 5 , see that the adaptive structure 500 includes an elastic member 510 , one end of the elastic member 510 is connected to the connecting member 110 , and the other end is connected to the supporting base 120 , so that a floating connection is formed between the connecting member 110 and the supporting base 120 .

[0075] The floating connection formed by the elastic member 510 enables the support base 120 to have a certain adaptive adjustment capability. When there are local unevenness or shape changes on the surface of the roller, the elastic member 510 can expand and contract, allowing the support base 120 to move and adjust its position within a certain range, ensuring that the outer peripheral surface of the rolling support member 400 is always in close contact with the roller. In addition, this floating connection helps to balance the force distribution. When the rolling support member 400 contacts the roller, the pressure generated can be dispersed and balanced to a certain extent through the elastic deformation of the elastic member 510, avoiding local excessive force and damage to components.

[0076] In one possible embodiment, see Figure 4 and Figure 5 The adaptive structure 500 also includes a rotating shaft 520 , which is fixedly disposed on the connecting member 110 , and an extending direction of the rotating shaft 520 is parallel to the rotation axis of the rolling support member 400 , and the support base 120 is rotatably disposed on the rotating shaft 520 .

[0077] During the operation of the cutting device 1, for example, when a local bulge appears on the surface of the roller, the rolling support 400 is first subjected to a thrust from the roller. Since the support base 120 is rotatably arranged on the rotation axis 520, this thrust will cause the support base 120 to rotate around the rotation axis 520 by a certain angle. At the same time, the elastic member 510 is compressed and stores potential energy. When the bulge on the surface of the roller passes, the elastic member 510 releases the stored potential energy, pushing the support base 120 to rotate around the rotation axis 520 and return to the initial position or close to the initial position, so that the rolling support 400 continues to be close to the surface of the roller. On the contrary, when encountering a local depression on the surface of the roller, the rolling support 400 drives the support base 120 to rotate under the action of the roller. The rotating shaft 520 rotates a certain angle, and the elastic member 510 is stretched. After the depression is passed, the elastic member 510 contracts, pulling the support base 120 to rotate upward around the rotating shaft 520, so that the rolling support member 400 is closely fitted to the roller again. During the whole process, the rotating shaft 520 serves as the axis of rotation of the support base 120, ensuring smooth and accurate rotation; the elastic member 510 provides a restoring force to help the support base 120 quickly adapt to changes in the surface of the roller; and the rotation of the support base 120 around the rotating shaft 520 and the expansion and contraction of the elastic member 510 work together to enable the rolling support member 400 to always be in close contact with the surface of the roller, thereby ensuring the stability of the relative position between the cutter 220 and the roller, and achieving accurate cutting.

[0078] Of course, the adaptive structure 500 is not limited to the above-mentioned structures. For example, the adaptive structure 500 may also be a hydraulic adaptive structure 500, which uses the cylinder and piston in the hydraulic system to achieve adaptive adjustment of the support base 120. The pressure of the hydraulic oil can be automatically adjusted according to changes in external conditions, thereby driving the support base 120 to move or rotate to adapt to the state of the roller. Alternatively, the adaptive structure 500 may be an electromagnetic adaptive structure 500, which uses electromagnetic force to achieve adaptive adjustment. For example, the magnetic force generated by the electromagnetic coil attracts or repels related components, thereby changing the position or angle of the support base 120. Alternatively, the adaptive structure 500 may be a slider guide mechanism, which is provided between the connector 110 and the support base 120, and is combined with an elastic element or other driving device to enable the support base 120 to slide along a specific trajectory, thereby achieving adaptive adjustment.

[0079] In one possible embodiment, see Figure 5 A bearing 540 is sleeved on the rotating shaft 520 , and a bearing seat 5401 of the bearing 540 is fixedly connected to the support base 120 .

[0080] Therefore, the setting of the bearing 540 greatly reduces the friction resistance between the rotating shaft 520 and the support base 120, enabling the support base 120 to rotate more smoothly around the rotating shaft 520, effectively reducing the wear of the rotating shaft 520 and the support base 120, and also improving the rotation accuracy and stability. The bearing can ensure that the rotation of the support base 120 is smoother, reducing shaking and jumping, so that the rolling support 400 can adapt to the changes of the roller more accurately, ensuring the accuracy and stability of the relative position between the cutter 220 and the roller.

[0081] In one possible embodiment, see Figure 4 A limiting member 530 is provided on the connecting member 110 , and the limiting member 530 is used to limit the rotation angle of the supporting base 120 .

[0082] By limiting the rotation angle of the support base 120 through the limiter 530, it can be prevented from excessive rotation, which may cause excessive deviation in the relative position between the cutter 220 and the roller, thereby avoiding affecting the cutting accuracy and quality, and even avoiding possible equipment damage or safety accidents. In addition, excessive rotation may cause excessive stress and fatigue damage to components such as the elastic member 510 and the rotating shaft 520. The presence of the limiter 530 can avoid this situation and extend the service life of these components. In addition, the rotation angle range of the support base 120 is limited, so that the movement of the support base 120 during each operation is within a controllable range, thereby ensuring the consistency and predictability of each cutting process. For example, if there is no limiter 530, in extreme cases, the support base 120 may excessively rotate due to excessive external force, resulting in the inability to perform subsequent cutting work normally.

[0083] In one possible embodiment, see Figure 2 and Figure 4 The cutter assembly 200 is slidably mounted on the mounting frame 100 along a second horizontal direction, and the second horizontal direction is parallel to the extending direction of the roller.

[0084] The second horizontal direction is Figure 4 The direction indicated by arrow Y.

[0085] By sliding the cutter assembly 200 along the second direction on the mounting frame 100, the cutter assembly 200 can be adjusted horizontally with increased flexibility, so that the position of the cutter assembly 200 can be accurately adjusted along the extension direction of the roller according to the actual distribution of the film to be cut on the roller, ensuring that the required part can be accurately cut. It is also beneficial to adapt to films to be cut of different widths. When producing products of different specifications and the width of the film to be cut changes, the sliding cutter assembly 200 can be quickly and conveniently adjusted to a suitable position, thereby improving the versatility and production efficiency of the equipment.

[0086] In one possible embodiment, see Figure 2 The mounting frame 100 is provided with a guide rail 130 extending along the second direction, and the cutter assembly is provided with a guide slider 240 that slides with the guide rail 130, so that the cutter assembly 200 is guided in the second direction through the cooperation between the guide rail 130 and the guide slider 240.

[0087] In one possible embodiment, see Figure 5 A locking structure 140 is also provided on the mounting frame, and the locking structure 140 is used to lock the cutter assembly 200 at a preset position in the second horizontal direction.

[0088] Here, the "preset position" refers to a specific position that is pre-set and can meet specific cutting needs or process requirements during the sliding of the cutter assembly along the second horizontal direction. This preset position is determined according to the specific specifications and dimensions of the film to be cut.

[0089] It should be noted that the locking structure 500 can be a bolt locking, in which the bolt is tightened to press against the cutter assembly, thereby fixing it in a preset position; a pin locking, in which corresponding holes are set on the mounting frame and the cutter assembly, and the pin is inserted to achieve locking; an electromagnetic locking, in which the components are attracted or repelled by electromagnetic force to achieve locking, which is not limited here.

[0090] In one possible embodiment, see Figure 4 The cutter assembly 200 includes at least two, at least two cutter assemblies 200 are arranged at intervals along the horizontal direction, and a spacer 600 is provided between the two adjacent cutter assemblies 200. One end of the spacer 600 along the first horizontal direction is connected to one of the cutter assemblies 200, and the other end is connected to the other cutter assembly 200, so that the two adjacent cutter assemblies 200 maintain a preset distance.

[0091] As a result, multiple cutter assemblies 200 can operate simultaneously, completing cutting at multiple locations at once, significantly shortening cutting time and thereby improving the efficiency of the entire production process. Furthermore, the provision of spacers 600 between adjacent cutter assemblies 200 and maintaining a preset spacing help ensure cutting accuracy and consistency. Each cutter assembly 200 can cut at a relatively independent and stable spacing, avoiding mutual interference, thereby ensuring a neat and smooth cut edge. Furthermore, this spacing arrangement enhances the device's adaptability to films of varying sizes and shapes. The number and spacing of the cutter assemblies 200 can be adjusted as needed to meet various specific cutting requirements.

[0092] For example, see Figure 4 The cutter assembly 200 has four cutters to cut out two pole pieces at the same time.

[0093] In one possible embodiment, see Figure 3 and Figure 4 The cutter assembly 200 is also provided with a cleaning member 700, which is used to clean the waste edge on the film to be cut after being cut by the cutter assembly 200.

[0094] The cleaning member 700 may be a scraper, or a brush, an electrostatic adsorption device, or any other cleaning member 700 , which is not limited here.

[0095] Therefore, there is no need to arrange a separate cleaning process, and the waste edge cleaning can be completed while cutting, saving time and labor costs. For example, in continuous production, the cleaning part 700 can remove the waste edge in real time, making the production process smoother and reducing the downtime for cleaning caused by the accumulation of waste edges.

[0096] The embodiment of the present application further provides a pole piece coating device, which includes the above-mentioned cutting device 1.

[0097] Among them, the cutting device 1 in the embodiment of the present application can have the same structure as the cutting device 1 in the above embodiment, and can bring the same or similar beneficial effects. For details, please refer to the description in the above embodiment, and the embodiment of the present application will not be repeated here.

[0098] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the cutting device and electrode coating equipment of the present application, rather than to limit them. Although the cutting device and electrode coating equipment of the present application are described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A cutting device (1), which is arranged below a roller and is used to cut a film to be cut on the roller, and is characterized in that: The cutting device (1) comprises: Mounting frame (100); a cutter assembly (200), the cutter assembly (200) being arranged on the mounting frame (100); A lifting drive structure (300) is connected to the mounting frame (100), and the lifting drive structure (300) is used to drive the mounting frame (100) to move in a vertical direction to adjust the distance between the cutter assembly (200) and the film to be cut.

2. The cutting device (1) according to claim 1, characterized in that The cutter assembly (200) comprises a mounting member (210), a cutter (220) and an angle adjustment structure (230); the mounting member (210) is arranged on the mounting frame (100); the cutter (220) and the mounting member (210) are rotatably connected via the angle adjustment structure (230); the angle adjustment structure (230) is used to adjust the inclination angle of the blade of the cutter (220) so that the blade of the cutter (220) is in contact with the film to be cut on the surface of the roller.

3. The cutting device (1) according to claim 2, characterized in that The angle adjustment structure (230) includes: A cutter seat (2301), wherein the cutter (220) is arranged on the cutter seat (2301); a spring sheet (2302), the spring sheet (2302) comprising a horizontal extension portion (23021) and a vertical extension portion (23022) connected to each other, the vertical extension portion (23022) being connected to the mounting member (210), and the cutter seat (2301) being fixed relative to the horizontal extension portion (23021); a wedge-shaped member (2303) movably mounted on the mounting member (210) along a first horizontal direction and located between the mounting member (210) and the horizontal extension portion (23021) in the vertical direction; the wedge-shaped member (2303) includes a guide slope (23031), and the height of the guide slope (23031) increases gradually along the first horizontal direction, wherein the first horizontal direction is perpendicular to the axis of the roller; An adjusting member (2304), wherein the adjusting member (2304) is fixed relative to the horizontal extension portion (23021) and is located between the guide inclined surface (23031) and the horizontal extension portion (23021) in the vertical direction.

4. The cutting device (1) according to claim 3, characterized in that The adjusting member (2304) is cylindrical, and the outer peripheral surface of the adjusting member (2304) is respectively in contact with the horizontal extension portion (23021) and the guiding inclined surface (23031).

5. The cutting device (1) according to claim 3, characterized in that The spring sheet (2302), the wedge-shaped member (2303) and the adjusting member (2304) are fixedly connected by threaded fasteners.

6. The cutting device (1) according to any one of claims 1 to 3, characterized in that: The cutting device (1) further comprises a rolling support member (400) rotatably arranged on the mounting frame (100), wherein the rotation axis of the rolling support member (400) is parallel to the axis of the roller, and the outer peripheral surface of the rolling support member (400) is used to abut against the roller during the cutting process of the cutting device (1).

7. The cutting device (1) according to claim 6, characterized in that The mounting frame (100) comprises a connecting member (110) and a supporting base (120); one end of the connecting member (110) is connected to the lifting drive structure (300), and the other end is connected to the supporting base (120); the cutter assembly (200) and the rolling support member (400) are mounted on the supporting base (120); The cutting device (1) further comprises an adaptive structure (500), wherein the adaptive structure (500) is arranged between the support base (120) and the connecting member (110), and the adaptive structure (500) is used to make the outer peripheral surface of the rolling support member (400) closely contact the roller.

8. The cutting device (1) according to claim 7, characterized in that The adaptive structure (500) comprises an elastic member (510), one end of the elastic member (510) being connected to the connecting member (110) and the other end being connected to the supporting base (120), so as to form a floating connection between the connecting member (110) and the supporting base (120).

9. The cutting device (1) according to claim 8, characterized in that The adaptive structure (500) further includes a rotating shaft (520), which is fixedly arranged on the connecting member (110), and the extending direction of the rotating shaft (520) is parallel to the rotation axis of the rolling support member (400), and the supporting base (120) is rotatably arranged on the rotating shaft (520).

10. The cutting device (1) according to claim 9, characterized in that A limiting member (530) is provided on the connecting member (110), and the limiting member (530) is used to limit the rotation angle of the supporting base (120).

11. The cutting device (1) according to claim 1, characterized in that The cutter assembly (200) is slidably mounted on the mounting frame (100) along a second horizontal direction, the second horizontal direction being parallel to the extension direction of the roller.

12. The cutting device (1) according to claim 11, characterized in that The cutter assemblies (200) include at least two, and at least two of the cutter assemblies (200) are spaced apart along the second horizontal direction. A spacer (600) is provided between two adjacent cutter assemblies (200). One end of the spacer (600) along the first horizontal direction is connected to one of the cutter assemblies (200), and the other end is connected to the other cutter assembly (200), so that the two adjacent cutter assemblies (200) maintain a preset distance.

13. The cutting device (1) according to claim 1, characterized in that The cutter assembly (200) is also provided with a cleaning piece (700), and the cleaning piece (700) is used to clean the waste edge on the film to be cut after being cut by the cutter assembly (200).

14. A pole piece coating device, characterized in that: The pole piece coating equipment comprises the cutting device (1) according to any one of claims 1 to 13.

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