A strip cutting apparatus and control method

Abstract

The application discloses a material belt cutting device and a control method, and relates to the technical field of battery cell manufacturing devices. The material belt cutting device is provided with a transmission-in mechanism, a cutting mechanism, a conveying mechanism, a detection mechanism, a round corner die cutting mechanism and a transmission-out mechanism arranged in sequence along the conveying direction of the material belt, thereby constructing an automatic processing assembly line. The cutting mechanism is provided with a pressing member and a cutting member arranged in sequence, thereby ensuring the stability of the cutting process and reducing the risk of material belt deviation. The conveying mechanism realizes the alternate conveying of semi-finished pole pieces through the reciprocating switching of at least two conveying modules, thereby relieving the beat bottleneck caused by single-station serial operation and solving the problems of processing beat disorder and low production efficiency in the related art. In cooperation with the real-time position feedback of the detection mechanism and the accurate cutting of the round corner die cutting mechanism, the size precision of the pole piece is improved, the safety hidden danger caused by the sharp corners of the pole piece is reduced, and the industrial production requirements of new energy batteries, such as large batch, high efficiency and high safety, are better met.

Description

Technical Field

[0001] This application relates to the field of battery cell manufacturing equipment technology, and in particular to a strip cutting device and control method. Background Technology

[0002] With the continuous development of new energy vehicles, electrochemical energy storage, and other fields, the application scenarios of lithium-ion batteries are constantly expanding, and the market demand for battery production capacity is gradually increasing. Electrodes are a crucial component of lithium-ion batteries, and their processing condition directly impacts the overall battery production schedule.

[0003] In the production process of electrode sheets, it is generally necessary to perform processing steps such as die cutting and trimming on the continuously conveyed base material strip. After appropriate processing, battery electrode sheets that meet the specifications are obtained.

[0004] In related technologies, the workflow of strip cutting equipment is poorly connected, and the coordination of processes such as strip conveying, die cutting, and cutting is low. During the operation of strip cutting equipment, problems such as strip deviation, cutting jamming, and disordered processing rhythm are prone to occur, which greatly limits the processing speed of electrode sheets, resulting in low overall production efficiency of electrode sheets and failing to meet the needs of large-scale, high-efficiency industrial production of new energy batteries. Summary of the Invention

[0005] Based on this, this application provides a strip cutting device and control method to solve the problem of low production efficiency of strip cutting devices in related technologies.

[0006] In a first aspect, embodiments of this application provide a strip cutting device for cutting strips into finished electrode sheets, comprising the following components arranged sequentially along the strip conveying direction:

[0007] An infeed mechanism is used to transfer the material strip;

[0008] A cutting mechanism includes a clamping component and a cutting component. The clamping component is used to clamp the material strip, and the cutting component is used to cut the material strip into semi-finished electrode sheets. The clamping component and the cutting component are arranged sequentially along the conveying direction of the material strip.

[0009] The conveying mechanism includes at least two conveying modules, which are used to fix the semi-finished electrode sheet. Each conveying module can reciprocate between the inspection station and the die-cutting station to receive the semi-finished electrode sheet cut by the cutting part at the inspection station and convey the semi-finished electrode sheet from the inspection station to the die-cutting station.

[0010] The testing organization, set up corresponding to the testing station, is used to detect the position and status of the semi-finished electrode sheet;

[0011] A rounded corner die-cutting mechanism is provided corresponding to the die-cutting station. Its cutting position can be adjusted according to the position state detected by the detection mechanism to cut the sharp corners of the semi-finished electrode sheet to obtain the finished electrode sheet.

[0012] The conveying mechanism is used to convey the finished electrode sheet processed at the die-cutting station to the outside.

[0013] In some embodiments, the cutting mechanism further includes:

[0014] A support base is used to support the material strip, and the clamping member is disposed above the support base;

[0015] A driving component is used to drive the clamping component and the cutting component to move along the height direction;

[0016] Under the driving action of the driving member, the clamping member can switch between a clamping position close to the support seat to clamp the material strip and a loosening position away from the support seat to loosen the material strip;

[0017] Under the driving action of the driving member, the cutting member can switch between a cutting position close to the support seat to cut the strip and a avoiding position away from the support seat to avoid the strip.

[0018] In some embodiments, the incoming mechanism includes:

[0019] A linear motor is installed along the conveying direction of the material belt;

[0020] The gripper is used to clamp the material strip, and the gripper is installed at the output end of the linear motor.

[0021] In some embodiments, the linear motor, the gripper, and the clamping member are configured as follows:

[0022] When the clamping member presses the material strip, the gripper releases the material strip, and the linear motor drives the gripper to move a set distance away from the clamping member;

[0023] And / or, under the condition that the clamping member does not clamp the material strip, the gripper clamps the material strip, and the linear motor drives the gripper to move a set distance toward the clamping member;

[0024] And / or, after the clamping jaws release the material strip, the linear motor drives the clamping jaws to move a set distance away from the clamping member and re-clamp the material strip, the clamping member releases the material strip.

[0025] In some embodiments, the clamping member and the cutting member are configured as follows:

[0026] Under the condition that the clamping member clamps the material strip, the cutting member cuts the material strip; under the condition that the cutting member has completed the cutting and moves away from the material strip, the clamping member releases the material strip.

[0027] In some embodiments, the conveying mechanism includes:

[0028] The support frame has a guide groove, which has a first guide section, a second guide section and a third guide section that are connected in transition. The first guide section, the second guide section and the third guide section all extend along the conveying direction of the material belt, and the height of the second guide section is lower than that of the first guide section and the third guide section.

[0029] The first conveying module includes a power input component and a conveying assembly. The power input component is slidably connected to the support frame along the conveying direction of the material belt. The conveying assembly is used to fix the semi-finished electrode sheet and is slidably connected to the power input component along the height direction. At least a portion of the conveying assembly is located in the guide groove.

[0030] The second conveying module is slidably connected to the support frame along the conveying direction of the material belt and is used to fix the semi-finished electrode sheet;

[0031] A drive assembly is used to drive the power input component and the second conveying module to move synchronously in opposite directions;

[0032] Wherein, when at least a portion of the conveying component is located within the second guide section, the height of the conveying component is lower than that of the second conveying module.

[0033] In some embodiments, the delivery assembly includes:

[0034] Conveyor plate assembly, used to fix the semi-finished electrode sheet;

[0035] The guide rod is fixedly connected to the conveyor plate assembly and slidably connected to the power input component along the height direction;

[0036] The guide member is fixedly connected to the conveyor plate assembly and is at least partially located within the guide groove.

[0037] In some embodiments, the conveyor plate assembly includes:

[0038] The first support plate is fixedly connected to the guide rod and the guide member;

[0039] A first adsorption plate is disposed on the first support plate, and the first adsorption plate is provided with adsorption holes;

[0040] And / or, the second conveying module includes:

[0041] The second support plate is slidably connected to the support frame along the conveying direction of the material belt;

[0042] The second adsorption plate is disposed on the second support plate, and the second adsorption plate has adsorption holes.

[0043] In some embodiments, the driving component includes:

[0044] A synchronous belt has a first belt edge and a second belt edge that are arranged opposite to each other along the height direction. The power input component is fixedly connected to the first belt edge, and the second conveying module is fixedly connected to the second belt edge.

[0045] The drive component is used to drive the synchronous belt to reciprocate.

[0046] Secondly, embodiments of this application provide a control method, comprising the following steps:

[0047] The grippers of the feeding mechanism are controlled to clamp the material strip, and the linear motor is controlled to drive the grippers to move a set distance toward the cutting mechanism to feed the material strip.

[0048] The clamping component of the cutting mechanism is controlled to clamp the material strip, and the cutting component is controlled to move down to cut the material strip to obtain a semi-finished electrode sheet;

[0049] After the cutting is completed, the cutting part is controlled to reset and move away from the material strip, and after the gripper is controlled to re-clamp the material strip, the clamping part is controlled to release the material strip;

[0050] The conveying module of the control conveying mechanism receives the semi-finished electrode sheet at the detection station and controls the detection mechanism to detect the position status of the semi-finished electrode sheet.

[0051] The control conveyor module carries the semi-finished electrode sheet to the die-cutting station. The cutting position of the rounded corner die-cutting mechanism is adjusted according to the position status detected by the detection mechanism. The rounded corner die-cutting mechanism is controlled to cut the sharp corners of the semi-finished electrode sheet to obtain the finished electrode sheet.

[0052] The control transmission mechanism conveys the finished electrode sheet outward.

[0053] This application has at least the following beneficial effects:

[0054] The strip cutting equipment provided in this application embodiment constructs a collaborative automated processing line by sequentially arranging an input mechanism, a cutting mechanism, a conveying mechanism, a detection mechanism, a rounded corner die-cutting mechanism, and an output mechanism along the strip conveying direction. The cutting mechanism, through the sequential arrangement of clamping and cutting components, helps ensure the stability of the cutting process and reduces the risk of strip deviation. The conveying mechanism, through the reciprocating switching of at least two conveying modules, realizes the alternating conveying of semi-finished electrode sheets, alleviating the cycle time bottleneck caused by single-station serial operation and helping to solve the problems of disordered processing cycle time and low production efficiency in related technologies. Combined with the real-time position feedback of the detection mechanism and the precise cutting of the rounded corner die-cutting mechanism, it not only improves the dimensional accuracy of the electrode sheets but also reduces the safety hazards caused by sharp corners of the electrode sheets, effectively meeting the industrial production needs of large-scale, high-efficiency, and high-safety new energy batteries. Attached Figure Description

[0055] 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 some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0056] Figure 1 This is a front view of a strip cutting device in one or more embodiments of this application.

[0057] Figure 2 This is a top view of a strip cutting device in one or more embodiments of this application.

[0058] Figure 3 This is a schematic diagram of the conveying mechanism of the strip cutting equipment in one or more embodiments of this application.

[0059] Figure 4 This is an exploded view of the conveying mechanism of the strip cutting equipment in one or more embodiments of this application.

[0060] Figure 5 This is a schematic diagram of the structure of the first conveying module of the strip cutting equipment in one or more embodiments of this application.

[0061] Figure 6 This is a schematic diagram of the structure of the second conveying module of the strip cutting equipment in one or more embodiments of this application.

[0062] Figure 7 This is a schematic diagram of the drive assembly of the strip cutting device in one or more embodiments of this application.

[0063] Explanation of reference numerals in the attached figures:

[0064] 100-Strip cutting equipment, 110-Feeding mechanism, 111-Linear motor, 112-Gripper, 120-Cutting mechanism, 121-Clamping component, 122-Cutting component, 123-Support base, 124-Drive component, 130-Conveying mechanism, 131-Conveying module, 132-First conveying module, 1321-Power input component, 1322-Conveying assembly, 1323-Conveying plate assembly, 1324-First support plate, 1325-First suction plate, 1326-Guide rod, 1327-Guide component, 133-Second conveying module, 1331-Second support plate, 1332 - Second adsorption plate, 134- Support frame, 134a- Guide groove, 134a1- First guide section, 134a2- Second guide section, 134a3- Third guide section, 135- Drive assembly, 1351- Synchronous belt, 1351a- First belt edge, 1351b- Second belt edge, 1352- Drive component, 140- Detection mechanism, 150- Rounded corner die-cutting mechanism, 160- Transmission mechanism, 200- Material strip, 210- Semi-finished electrode sheet, 220- Finished electrode sheet, A- Detection station, B- Die-cutting station, X- Material strip conveying direction, Y- Material strip width direction, Z- Height direction. Detailed Implementation

[0065] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, of the embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application. The embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0066] In related technologies, the workflow of strip cutting equipment is poorly connected, and the coordination of processes such as strip conveying, die cutting, and cutting is low. During the operation of strip cutting equipment, problems such as strip deviation, cutting jamming, and disordered processing rhythm are prone to occur, which greatly limits the processing speed of electrode sheets, resulting in low overall production efficiency of electrode sheets and failing to meet the needs of large-scale, high-efficiency industrial production of new energy batteries.

[0067] In view of this, the present application provides a strip cutting device and control method. The strip cutting device and control method provided in the present application will be described in detail below with reference to the accompanying drawings.

[0068] In the attached diagram, X represents the conveying direction of the material belt, Y represents the width direction of the material belt, and Z represents the height direction. The conveying direction X, the width direction Y, and the height direction Z are perpendicular to each other.

[0069] like Figure 1 and Figure 2 As shown, this application embodiment provides a strip cutting device 100 for cutting strip 200 into finished electrode sheets 220, including: an input mechanism 110, a cutting mechanism 120, a conveying mechanism 130, a detection mechanism 140, a rounded corner die-cutting mechanism 150 and an output mechanism 160 arranged sequentially along the strip conveying direction X.

[0070] The feeding mechanism 110 is used to transport the material strip 200, providing a continuous and stable material supply for subsequent cutting processes. The structure of the feeding mechanism 110 varies. In some embodiments, the feeding mechanism 110 may include components such as an unwinding device, a tension control roller group, a correction device, and guide rollers. The continuous transport of the material strip 200 is achieved through roller friction or tension control. The unwinding device is used to release the wound material strip 200. The tension control roller group maintains a constant tension of the material strip 200 during transport through a magnetic powder brake or servo motor to prevent the material strip 200 from loosening or breaking. The correction device (such as an EPC / LPC correction system) is used to detect and correct the offset of the material strip 200 in the width direction Y in real time, ensuring that the material strip 200 accurately enters the cutting mechanism 120 along the material conveying direction X. In other embodiments, the feeding mechanism 110 may include a gripper assembly and a linear drive module (such as a linear motor or servo screw module). The gripper assembly clamps the material strip 200, and the linear drive module drives the gripper assembly to move a set distance along the material strip conveying direction X, thereby achieving fixed-length step feeding of the material strip 200. It should be noted that the specific configuration, transmission method, and control strategy of the feeding mechanism 110 are not limited in the embodiments of this application, as long as they can achieve smooth and accurate transmission of the material strip 200.

[0071] The cutting mechanism 120 includes a clamping member 121 and a cutting member 122. The clamping member 121 is used to clamp the material strip 200, and the cutting member 122 is used to cut the material strip 200 into semi-finished electrode sheets 210. The clamping member 121 and the cutting member 122 are arranged sequentially along the material strip conveying direction X. That is, on the travel path of the material strip 200, the clamping member 121 is located upstream of the cutting member 122. By setting the clamping member 121, it can be ensured that the material strip 200 is firmly fixed by the clamping member 121 when the cutting member 122 is cutting, effectively avoiding the material strip 200 from springing back, wrinkling or positional displacement caused by cutting stress, and ensuring the accuracy of the cutting dimensions of the semi-finished electrode sheets 210. Furthermore, since the clamping member 121 is located upstream of the cutting member 122 along the conveying direction X of the material belt, after the cutting member 122 completes the cutting action of the current material belt 200, the remaining material belt 200 to be cut upstream of the cutting member 122 remains clamped by the clamping member 121. This structural layout can continuously provide clamping and positioning for the remaining material belt 200 during the gap between the reset of the cutting member 122 and the subsequent feeding mechanism 110 re-pulling the material belt 200, preventing the remaining material belt 200 from regressing, loosening, or deviating due to the instantaneous loss of front-end traction, thereby ensuring the initial positional accuracy of the next feeding and cutting.

[0072] Specifically, the clamping component 121 can be a pressure plate driven by a cylinder, electric cylinder, or hydraulic cylinder. The lower surface of the pressure plate can be covered with an elastic buffer pad such as polyurethane or rubber to increase friction and prevent damage to the coating on the surface of the strip 200. The cutting component 122 can be a mechanical punching die (such as a punch press structure with upper and lower dies), a guillotine cutter, or a flying shear mechanism. It can be driven by components such as a servo motor or cylinder to cut the strip 200 laterally according to the preset length of the finished electrode sheet 220. It should be noted that the specific structural form, driving method, and material of the clamping component 121 and the cutting component 122 are not limited in this embodiment of the application. They can be adapted to the material and thickness of the strip 200, as long as reliable clamping and cutting functions can be achieved.

[0073] The conveying mechanism 130 includes at least two conveying modules 131, which are used to fix the semi-finished electrode sheet 210. Each conveying module 131 can reciprocate between the inspection station A and the die-cutting station B, so as to receive the semi-finished electrode sheet 210 cut by the cutting part 122 at the inspection station A and convey the semi-finished electrode sheet 210 from the inspection station A to the die-cutting station B.

[0074] By setting at least two conveying modules 131, the strip cutting equipment 100 can achieve alternating parallel operation of multiple stations. For example, when the first conveying module 132 receives a newly cut semi-finished electrode sheet 210 at the inspection station A, the second conveying module 133 is carrying the semi-finished electrode sheet 210 at the die-cutting station B to cooperate with the rounded corner die-cutting operation; then the two move synchronously or alternately, so that the receiving and die-cutting processes are seamlessly connected, eliminating the waiting time (i.e., idle stroke time) caused by the reciprocating movement of a single module, and greatly improving the processing cycle.

[0075] The conveying module 131 can be driven by a linear motor, a servo motor with a ball screw, or a synchronous belt drive mechanism to achieve high-speed, high-precision linear reciprocating motion. To securely fix the semi-finished electrode sheet 210, the conveying module 131 can be equipped with a vacuum adsorption platform, mechanical grippers, or electrostatic adsorption devices. In some embodiments, a vacuum adsorption platform is used, with multiple micropores on its surface and an internal negative pressure source. The negative pressure adsorption force secures the semi-finished electrode sheet 210 flatly onto the conveying module 131, preventing slippage or warping during high-speed movement. It should be noted that the specific number, driving method, and fixing method of the conveying modules 131 are not limited in this embodiment, as long as they can reciprocate and reliably fix the semi-finished electrode sheet 210 between the inspection station A and the die-cutting station B.

[0076] The detection mechanism 140 is set up corresponding to detection station A and is used to detect the position status of the semi-finished electrode sheet 210. The position status specifically refers to the actual placement posture and coordinate information of the semi-finished electrode sheet 210 on the conveying module 131, including but not limited to the offset of the semi-finished electrode sheet 210 in the Y direction of the strip width, the offset in the X direction of the strip conveying, and the deflection angle of the central axis of the semi-finished electrode sheet 210 relative to the moving trajectory of the conveying module 131. The detection mechanism 140 may include a CCD (Charge Coupled Device) vision camera, a laser displacement sensor, or a photoelectric sensor, as well as a matching light source system. When the conveying module 131 carries the semi-finished electrode sheet 210 to detection station A, the detection mechanism 140 photographs or scans the edge contour, tab position, or positioning marker points of the semi-finished electrode sheet 210 to obtain the aforementioned position status. This application does not limit the specific detection principle and hardware selection of the detection mechanism 140, as long as it can obtain the position status of the semi-finished electrode sheet 210.

[0077] In some embodiments, the strip cutting equipment 100 further includes a controller, which is electrically connected to components such as the input mechanism 110, the cutting mechanism 120, the conveying mechanism 130, the detection mechanism 140, the rounded corner die-cutting mechanism 150, and the output mechanism 160. Based on the position status detected by the detection mechanism 140, the controller can determine whether the cutting quality of the cutting mechanism 120 is acceptable, such as whether there are defects like dimensional deviations or missing corners. Furthermore, it can feed back this position status to the subsequent rounded corner die-cutting mechanism 150, enabling the rounded corner die-cutting mechanism 150 to perform real-time position compensation based on the position status obtained from the detection mechanism 140 (e.g., fine-tuning the punching coordinates of the rounded corner die-cutting mechanism 150), ensuring the accuracy of subsequent rounded corner die-cutting.

[0078] The rounded corner die-cutting mechanism 150 is set up corresponding to the die-cutting station B. Its cutting position can be adjusted according to the position state detected by the detection mechanism 140 to cut the sharp corners of the semi-finished electrode sheet 210 to obtain the final finished electrode sheet 220. In battery manufacturing, after the cutting mechanism 120 laterally cuts the material strip 200, the corners of the resulting semi-finished electrode sheet 210 are usually right angles or sharp corners. These sharp corners are prone to piercing the separator during subsequent stacking or winding, causing internal short circuits in the battery and posing a safety hazard. Therefore, the rounded corner die-cutting mechanism 150 is needed to cut the sharp corners into rounded corners (such as R-corners) to ensure the safety of the battery cell.

[0079] Furthermore, after the semi-finished electrode sheet 210 is processed by the cutting mechanism 120, it is precisely received by the conveying module 131 at the inspection station, inevitably resulting in slight positional offsets or orientation deviations. If the rounded corner die-cutting mechanism 150 uses fixed punching coordinates, it is easy to cause rounded corner miscuts, overcutting (damaging the effective area of ​​the electrode sheet), or undercutting (leaving sharp corners). To address this, the rounded corner die-cutting mechanism 150 in this embodiment can receive position status data from the controller and adjust its cutting position in real time (e.g., through built-in fine-tuning drive components to perform coordinate compensation in the Y-direction of the strip width and / or the X-direction of the strip conveying direction), so that the cutting edge of the punching die can be accurately aligned with the actual sharp corner position of the semi-finished electrode sheet 210. This dynamic position compensation mechanism helps to reduce the impact of front-end conveying errors on die-cutting accuracy and ensures the dimensional consistency and yield of the final contour of the finished electrode sheet 220.

[0080] Specifically, the rounded corner die-cutting mechanism 150 may include a stamping die (such as a punching assembly including an upper die and a lower die), a position fine-tuning assembly (such as a cross slide or a linear motor module), and a main drive source (such as a servo press or a pneumatic-hydraulic booster cylinder). The position fine-tuning assembly is used to move and / or rotate the stamping die in the horizontal plane to achieve dynamic adjustment of the cutting position; the cutting edge shape of the upper die and the lower die matches the required rounded corner contour of the electrode sheet. After the conveying module 131 conveys the semi-finished electrode sheet 210 to the die-cutting station B and positions it, the rounded corner die-cutting mechanism 150 first completes position compensation through the position fine-tuning assembly, and then the main drive source drives the upper die to press down to punch the four corners (or specified corners) of the semi-finished electrode sheet 210. The cut rounded corner scrap can fall into the scrap collection box through the scrap leakage hole below. It should be noted that the specific structure of the rounded corner die-cutting mechanism 150, the implementation method of position compensation, the mold design and the waste discharge method are not limited in this application embodiment, as long as the sharp corner of the electrode sheet can be accurately cut off according to the position state.

[0081] The conveying mechanism 160 is used to transport the finished electrode sheet 220 processed at die-cutting station B outwards for the next process. The conveying mechanism 160 can be a synchronous belt conveyor, a vacuum suction conveyor, a robotic gripper mechanism, or a lifting platform, etc. For example, after the rounded corner die-cutting is completed, the conveying module 131 releases the fixing of the finished electrode sheet 220, and the robotic arm or conveyor belt of the conveying mechanism 160 removes the finished electrode sheet 220 and transfers it to a material box or the next piece of equipment. This application does not limit the specific structural form of the conveying mechanism 160, as long as it can achieve the smooth removal of the finished electrode sheet 220.

[0082] The working principle of the strip cutting device 100 provided in the embodiments of this application is described below:

[0083] In a single strip cutting operation, the feeding mechanism 110 is first controlled to drive the strip 200 to move a set distance toward the cutting mechanism 120 to complete the fixed-length feeding of the strip 200; after the feeding is in place, the feeding mechanism 110 stops the transmission.

[0084] Subsequently, the clamping member 121 of the cutting mechanism 120 is controlled to move down to clamp the material strip 200, and then the cutting member 122 is controlled to move down to cut the material strip 200, thus obtaining the semi-finished electrode sheet 210.

[0085] After the cutting is completed, the cut piece 122 is controlled to return to a position away from the material strip 200; after the feeding mechanism 110 re-establishes the traction or clamping state of the remaining material strip 200, the clamping piece 121 is controlled to release the material strip 200 to prepare for the next feeding.

[0086] Before the cutting of the cutting part 122 is completed, one of the conveying modules 131 of the control conveying mechanism 130 moves to the inspection station A to wait for receiving the material; after the cutting is completed, the semi-finished electrode 210 is received and the position status of the semi-finished electrode 210 is detected by the inspection mechanism 140.

[0087] Next, the conveying module 131 carries the semi-finished electrode sheet 210 to the die-cutting station B. During this process, the controller can adaptively switch the die-cutting position of the rounded corner die-cutting mechanism 150 according to the position status detected by the detection mechanism 140, so as to compensate for the position deviation of the semi-finished electrode sheet 210.

[0088] After position compensation is completed, the sharp corners of the semi-finished electrode 210 are cut by the rounded corner die-cutting mechanism 150 to obtain the finished electrode 220.

[0089] Finally, the control output mechanism 160 conveys the finished electrode sheet 220 outward.

[0090] In summary, the strip cutting equipment 100 provided in this application embodiment constructs a collaborative automated processing line by sequentially arranging an input mechanism 110, a cutting mechanism 120, a conveying mechanism 130, a detection mechanism 140, a rounded corner die-cutting mechanism 150, and an output mechanism 160 along the strip conveying direction. Specifically, the cutting mechanism 120, through the sequential arrangement of clamping components 121 and cutting components 122, helps ensure the stability of the cutting process and reduces the risk of strip deviation. The conveying mechanism 130, through the reciprocating switching of at least two conveying modules 131, realizes the alternating conveying of semi-finished electrode sheets 210, alleviating the cycle time bottleneck caused by single-station serial operation, and helping to solve the problems of disordered processing cycle time and low production efficiency in related technologies. Combined with the real-time position feedback of the detection mechanism 140 and the precise cutting of the rounded corner die-cutting mechanism 150, it not only improves the dimensional accuracy of the electrode sheets but also reduces the safety hazards caused by sharp corners of the electrode sheets, effectively meeting the industrial production needs of large-scale, high-efficiency, and high-safety new energy batteries.

[0091] In some embodiments, the cutting mechanism 120 further includes a support base 123 and a drive member 124. The support base 123 supports the strip 200, and the clamping member 121 is disposed above the support base 123; the drive member 124 drives the clamping member 121 and the cutting member 122 to move along the height direction Z; under the driving action of the drive member 124, the clamping member 121 can switch between a clamping position close to the support base 123 to clamp the strip 200 and a releasing position away from the support base 123 to release the strip 200; under the driving action of the drive member 124, the cutting member 122 can switch between a cutting position close to the support base 123 to cut the strip 200 and a avoiding position away from the support base 123 to avoid the strip 200.

[0092] The support seat 123 is mainly used to provide a flat and stable bottom support for the strip 200, ensuring that the strip 200 is subjected to uniform force when the cutting part 122 is pressed down, and preventing the cutting surface from tilting or wrinkling due to local suspension.

[0093] The upper surface of the support base 123 may be provided with a deflection groove or deflection hole that is adapted to the shape of the cutting edge of the cutting element 122, so as to allow the cutting element 122 to continue to extend downward for a certain stroke (i.e. overcutting amount) after cutting the strip 200, thereby facilitating the complete cutting of the strip 200 and reducing the risk of edge burrs or burrs.

[0094] The support base 123 can be made of high-hardness, wear-resistant metal materials, such as hardened steel or cemented carbide, or its upper surface can be coated with a wear-resistant coating to resist the wear caused by long-term impact and friction of the cut piece 122.

[0095] The driving component 124 is used to drive the clamping component 121 and the cutting component 122 to move along the height direction Z, and its structure can be varied. In some embodiments, the driving component 124 includes a first driving source and a second driving source, which are independently connected to the clamping component 121 and the cutting component 122 respectively to control their respective action sequence. The first driving source and the second driving source can be a cylinder, an electric cylinder, or a linear motor, etc. In other embodiments, the driving component 124 includes a main driving source and a transmission assembly, with the main driving source connected to the clamping component 121 and the cutting component 122 respectively through the transmission assembly. The transmission assembly can include a cam mechanism or a linkage mechanism, etc. Through the differential design of the transmission assembly, the main driving source can drive the clamping component 121 and the cutting component 122 to generate a stroke difference under a single power input, thereby enabling the clamping component 121 to contact the material strip 200 before the cutting component 122.

[0096] During operation, when the feeding mechanism 110 drives the material belt 200 to feed, the clamping member 121 is in the released position, and the cutting member 122 is in the clearance position to avoid interfering with the transmission of the material belt 200 or scratching the coating on the surface of the material belt 200. After the material belt 200 is fed into position, the driving member 124 drives the clamping member 121 to descend to the clamping position to fix the material belt 200, and then drives the cutting member 122 to descend to the cutting position to cut the material belt 200. After cutting is completed, the driving member 124 drives the cutting member 122 to rise to the clearance position, and then drives the clamping member 121 to rise to the released position so that the feeding mechanism 110 can perform the next feeding.

[0097] It should be noted that the specific shape of the support base 123, the size design of the cutting groove, and the specific selection, quantity and transmission method of the drive component 124 are not limited in this application embodiment. They can be adapted according to the thickness and material of the strip 200 and the overall spatial layout of the equipment, as long as the pressing component 121 and the cutting component 122 can be reliably switched between their respective positions.

[0098] In some embodiments, the feeding mechanism 110 includes a linear motor 111 and a gripper 112. The linear motor 111 is arranged along the conveying direction X of the material belt; the gripper 112 is used to clamp the material belt 200 and is mounted on the output end of the linear motor 111.

[0099] Specifically, the gripper 112 can be a pneumatic gripper, an electric gripper, or a hydraulic gripper, and it typically includes two opposing gripping arms. To reduce the risk of damaging the surface coating of the strip 200 when clamping it, flexible anti-slip pads such as polyurethane, silicone, or Teflon can be attached to the gripping surfaces where the gripping arms contact the strip 200.

[0100] The linear motor 111 can be a U-groove linear motor or a flat linear motor, etc., which directly drives the gripper 112 to perform linear motion via electromagnetic force, eliminating the need for an intermediate mechanical conversion mechanism. This direct drive method helps reduce energy loss and response delay caused by the transmission chain, enabling the gripper 112 to achieve higher moving speeds and accelerations, thus better adapting to the cycle time requirements of the high-speed stepping feeding of the material belt 200. Simultaneously, the linear motor 111 can achieve high positioning accuracy (e.g., micron-level positioning), ensuring good consistency in the set distance of each movement of the gripper 112, further improving the dimensional accuracy of the fixed-length feeding of the material belt 200. Furthermore, the linear motor 111 has a relatively simple mechanical structure with fewer physical contact and friction wear parts during movement, which helps reduce the daily maintenance costs of the equipment and improves the long-term stability and reliability of the input mechanism 110. In addition, compared with traditional friction roller feeding, the linear motor 111 drives the gripper 112 for fixed-length feeding, which eliminates the slippage caused by insufficient friction or roller wear between the roller and the material belt 200, and improves the feeding accuracy of the material belt 200 and the dimensional consistency of the semi-finished electrode sheet 210.

[0101] It should be noted that the specific model of the linear motor 111 in the input mechanism 110, the driving method of the gripper 112, and the material of the clamping surface are not limited in this application embodiment. They can be adapted to the width, thickness, and surface coating characteristics of the material strip 200, as long as high-precision fixed-length step conveying of the material strip 200 can be achieved.

[0102] In some embodiments, the linear motor 111, gripper 112, and clamping member 121 are configured such that: when the clamping member 121 clamps the material strip 200, the gripper 112 releases the material strip 200, and the linear motor 111 drives the gripper 112 to move away from the clamping member 121 by a set distance; and / or, when the clamping member 121 does not clamp the material strip 200, the gripper 112 clamps the material strip 200, and the linear motor 111 drives the gripper 112 to move toward the clamping member 121 by a set distance.

[0103] "Set distance" specifically refers to the feeding step distance required in a single cutting operation of the material strip 200. This distance is usually preset according to the length of the semi-finished electrode sheet 210 to be processed in the material strip conveying direction X, and is not limited in the embodiments of this application.

[0104] With the above configuration, the gripper 112 of the input mechanism 110 and the clamping member 121 of the cutting mechanism 120 form an alternating clamping step feeding mechanism. During operation, when feeding is required, the clamping member 121 is in the loosened state, the gripper 112 closes to clamp the material strip 200, and the linear motor 111 drives the gripper 112 to move forward a set distance to complete the fixed-length feeding; after feeding to the desired position, the clamping member 121 presses down to fix the material strip 200, at which point the gripper 112 opens to release the material strip 200, and under the drive of the linear motor 111, it retracts a set distance to prepare for the next gripping and feeding.

[0105] With this alternating clamping feeding method, the strip 200 is fixed by the gripper 112 during the feeding stage and by the clamping member 121 during the cutting stage, ensuring that the strip 200 is always reliably clamped throughout the entire processing cycle, effectively preventing the strip 200 from retracting, loosening or experiencing tension fluctuations at the moment of process switching.

[0106] In some embodiments, the linear motor 111, the gripper 112, and the clamping member 121 are configured such that after the gripper 112 releases the material strip 200, the linear motor 111 drives the gripper 112 to move a set distance away from the clamping member 121 and re-clamp the material strip 200, the clamping member 121 releases the material strip 200.

[0107] After a single cutting operation is completed, the strip 200 is clamped by the clamping member 121. The linear motor 111 drives the gripper 112 to retract (i.e., move away from the clamping member 121) a set distance and re-clamp the strip 200. Only after the gripper 112 re-clamps the strip 200 does the clamping member 121 perform an upward movement to release the strip 200. Subsequently, the linear motor 111 can drive the gripper 112 to move the strip 200 forward for the next fixed-length feeding. During this process, the timing of the gripper 112 retracting is flexible. For example, it can be done simultaneously with the cutting member 122 cutting the strip 200, or it can be done after the cutting is completed. This application does not strictly limit this.

[0108] Through the above logical design, it is ensured that the strip 200 is reliably fixed by at least one of the clamping element 121 or the gripper 112 throughout the entire processing cycle, avoiding phenomena such as retraction, slackness, or sudden tension changes in the strip 200 due to loss of clamping constraint during mechanism switching. This not only effectively maintains the flatness of the strip 200, but also prevents subsequent feeding starting point errors and cutting dimension deviations caused by the positional drift of the strip 200, further improving the operational stability of the strip cutting equipment 100 and the processing yield of the finished electrode sheet 220.

[0109] It should be noted that the specific triggering timing for the clamping element 121 to release the material strip 200 can be achieved through closed-loop control by receiving the clamping position signal of the gripper 112 (such as the magnetic switch signal of the pneumatic gripper or the torque / position feedback signal of the electric gripper), or by setting a fixed delay time in the control program. This application does not limit the specific control logic and signal triggering method of the action sequence of the clamping element 121 and the gripper 112, as long as it can be ensured that the two do not release simultaneously when handing over the material strip 200.

[0110] In some embodiments, the clamping member 121 and the cutting member 122 are configured such that: the cutting member 122 cuts the material strip 200 while the clamping member 121 clamps the material strip 200; and the clamping member 121 releases the material strip 200 after the cutting member 122 has completed cutting and moved away from the material strip 200.

[0111] During operation, after the feeding mechanism 110 delivers the material strip 200 to its position, the clamping member 121 first descends to the clamping position to fix the material strip 200. Subsequently, the cutting member 122 descends to the cutting position to cut the material strip 200, thus obtaining the semi-finished electrode sheet 210. After cutting, the cutting member 122 first rises back to its original position and moves away from the material strip 200. At this time, the clamping member 121 still maintains the clamping state on the material strip 200. Only after the cutting member 122 is completely detached from the material strip 200 does the clamping member 121 rise back to its original position to release the material strip 200.

[0112] Through the above timing configuration, on the one hand, the material strip 200 is firmly fixed by the clamping member 121 before the cutting part 122 cuts, which can effectively overcome the cutting stress and prevent the material strip 200 from shifting, wrinkling or springing at the moment of cutting, thereby ensuring the cutting dimensional accuracy and cross-sectional quality of the semi-finished electrode sheet 210. On the other hand, after the cutting is completed, the cutting part 122 is required to move away from the material strip 200 first, and the clamping member 121 is released afterward, which can effectively prevent the material strip 200 or the semi-finished electrode sheet 210 from being pulled upward during the rising and resetting process due to friction or material adhesion. The continuous clamping action of the clamping member 121 ensures that the cutting edge of the cutting part 122 can smoothly and completely separate from the material strip 200, maintaining the positional stability of the remaining material strip 200 and the semi-finished electrode sheet 210 after cutting, and providing a reliable guarantee for the accurate receiving of the subsequent conveying module 131 and the next feeding of the input mechanism 110.

[0113] It should be noted that the timing of the actions of the clamping member 121 and the cutting member 122 can be precisely controlled by the program logic of the controller, or it can be structurally achieved by the mechanical transmission components (such as cam mechanism or linkage mechanism) in the aforementioned drive member 124. This application does not limit the specific control method or mechanical structure for achieving this timing, as long as the action logic of "clamping first and then cutting, and the cutting member 122 resetting first and then the clamping member 121 releasing" can be guaranteed.

[0114] like Figures 3 to 5 As shown, in some embodiments, the conveying mechanism 130 includes: a support frame 134, a first conveying module 132, a second conveying module 133, and a drive assembly 135. The support frame 134 has a guide groove 134a, which has a first guide section 134a1, a second guide section 134a2, and a third guide section 134a3 that are connected in a transitional manner. The first guide section 134a1, the second guide section 134a2, and the third guide section 134a3 all extend along the conveying direction X of the material belt, and the height of the second guide section 134a2 is lower than that of the first guide section 134a1 and the third guide section 134a3. The first conveying module 132 includes a power input component 1321 and a conveying assembly 1322. The power input component 1321 is slidably connected to the support frame 134 along the conveying direction X of the material belt. The conveying assembly 1322 is used to fix the semi-finished electrode 210 and is slidably connected to the power input component 1321 along the height direction Z. At least a portion of the conveying assembly 1322 is located in the guide groove 134a. The second conveying module 133 is slidably connected to the support frame 134 along the material conveying direction X and is used to fix the semi-finished electrode 210. The driving assembly 135 is used to drive the power input component 1321 and the second conveying module 133 to move synchronously in opposite directions. When at least a portion of the conveying assembly 1322 is located in the second guide section 134a2, the height of the conveying assembly 1322 is lower than that of the second conveying module 133.

[0115] Specifically, the support frame 134 serves as the mounting base for the conveying mechanism 130, providing guidance and support for the first conveying module 132 and the second conveying module 133.

[0116] The guide groove 134a is opened on the support frame 134. Its first guide section 134a1 and third guide section 134a3 correspond to the detection station A and the die-cutting station B respectively. They are in a relatively high position so that the conveying component 1322 can smoothly receive the cut semi-finished electrode sheet 210, or cooperate with the rounded corner die-cutting mechanism 150 for processing.

[0117] The second guide section 134a2 is located between the first guide section 134a1 and the third guide section 134a3, forming a downward clearance zone. The first guide section 134a1 and the second guide section 134a2, and the second guide section 134a2 and the third guide section 134a3 are connected by smooth inclined or arc surfaces to ensure the stability of the conveying assembly 1322 during the lifting process and avoid severe vibration or jamming.

[0118] The first conveying module 132 includes a power input component 1321 and a conveying assembly 1322. The power input component 1321 is slidably connected to the support frame 134 along the conveying direction X of the material belt, for example, by cooperating with the support frame 134 via a linear guide rail. The conveying assembly 1322 is used to carry and fix the semi-finished electrode sheet 210 (such as by using the aforementioned vacuum adsorption platform or mechanical gripper), and it is slidably connected to the power input component 1321 along the height direction Z. Specifically, a vertical guide rail or guide column may be provided between the conveying assembly 1322 and the power input component 1321, so that the conveying assembly 1322 can move up and down on the power input component 1321. At least a portion of the conveying assembly 1322 (e.g., guide pins, rollers, or cam bearings provided on its side or bottom) extends into and slidably engages with the guide groove 134a of the support frame 134.

[0119] The second conveying module 133 is slidably connected to the support frame 134 along the conveying direction X of the material belt, and is also used to fix the semi-finished electrode sheet 210. Unlike the first conveying module 132, the second conveying module 133 does not need to move up and down in the height direction Z to avoid obstacles during horizontal movement. It can slide at a fixed height, or its overall height can be set higher than the first guide slide section 134a1 and the third guide slide section 134a3 to ensure that when the two meet, the second conveying module 133 is always above the conveying component 1322 of the first conveying module 132.

[0120] The drive assembly 135 is used to drive the power input component 1321 and the second conveying module 133 to move synchronously in opposite directions. The specific structure of the drive assembly 135 can vary and is not limited in the embodiments of this application. In some embodiments, the drive assembly 135 includes a dual-output shaft motor or two synchronously counter-rotating servo motors, coupled with two sets of synchronous belts or rack and pinion mechanisms, respectively connecting the power input component 1321 and the second conveying module 133. In other embodiments, the drive assembly 135 may include a main drive source and a reversing transmission mechanism to convert unidirectional rotational motion into counter-linear motion at the two output ends. Through this reverse synchronous drive, the first conveying module 132 and the second conveying module 133 can move towards or away from each other, ensuring seamless alternation of workstations.

[0121] During operation, after the cutting mechanism 120 completes the cutting, the drive component 135 drives the power input component 1321 and the second conveying module 133 to move towards each other in the horizontal direction. The power input component 1321 drives the conveying component 1322 to move horizontally synchronously. When the first conveying module 132 and the second conveying module 133 meet and intersect in the middle of the support frame 134 (i.e., between the inspection station A and the die-cutting station B), at least a portion of the conveying component 1322 just enters the second guide section 134a2 of the guide groove 134a. Under the guidance of the concave trajectory of the second guide section 134a2, the conveying component 1322 slides downward relative to the power input component 1321, thereby reducing the overall height. At this time, the height of the conveying component 1322 is lower than that of the second conveying module 133, and the two are misaligned in the height direction Z, thus achieving interference-free intersection. After the convergence is completed, the conveying component 1322 rises again along the transition section of the guide slide 134a to the third guide slide 134a3 (or the first guide slide 134a1) and returns to the working height.

[0122] Through the above structural design, when the first conveying module 132 and the second conveying module 133 move back and forth alternately on the support frame 134, they can form a three-dimensional intersecting motion trajectory. This not only simplifies the overall structure of the strip cutting equipment 100, reduces manufacturing costs and overall machine height, but also minimizes the distance between workstations, reduces the travel distance and idle time of the conveying module 131, and further improves the operating cycle and space utilization of the strip cutting equipment 100.

[0123] It should be noted that the specific tilt angle of the guide groove 134a, the curve shape of the transition section, the vertical sliding cooperation method between the conveying component 1322 and the power input component 1321, and the specific selection of the drive component 135 are not limited in this application embodiment. They can be adaptively designed according to the size, load and operating speed of the equipment, as long as they can drive the first conveying module 132 and the second conveying module 133 to move in opposite directions synchronously and achieve lifting and avoidance when they meet.

[0124] In some embodiments, the conveying assembly 1322 includes a conveying plate assembly 1323, a guide rod 1326, and a guide member 1327. The conveying plate assembly 1323 is used to fix the semi-finished electrode sheet 210; the guide rod 1326 is fixedly connected to the conveying plate assembly 1323 and slidably connected to the power input member 1321 in the height direction Z; the guide member 1327 is fixedly connected to the conveying plate assembly 1323 and is at least partially located within the guide groove 134a.

[0125] Specifically, the conveyor plate assembly 1323, as a component carrying the semi-finished electrode 210, can be designed according to the size and shape of the finished electrode 220. In some embodiments, the upper surface of the conveyor plate assembly 1323 has multiple adsorption micropores, and the interior has a vacuum chamber connected to a negative pressure source. The semi-finished electrode 210 is fixed on the conveyor plate assembly 1323 by vacuum adsorption. To reduce the risk of deformation or scratches to the surface coating of the semi-finished electrode 210 during adsorption, the upper surface of the conveyor plate assembly 1323 can be polished or coated with a wear-resistant and buffering coating such as Teflon or polyurethane. It should be noted that the conveyor plate assembly 1323 can also be fixed by mechanical grippers, electrostatic adsorption, or magnetic adsorption, etc., and this application does not limit this method.

[0126] Guide rod 1326 is used to enable relative sliding between conveyor plate assembly 1323 and power input component 1321 in the height direction Z. One end of guide rod 1326 is fixedly connected to conveyor plate assembly 1323, and the other end passes through guide hole on power input component 1321. To improve the smoothness of sliding and guiding accuracy, a linear bearing or self-lubricating bushing may be embedded in the guide hole. In addition, to reduce the risk of rotation or tilting of conveyor plate assembly 1323 during lifting or horizontal movement, the number of guide rods 1326 may be set to at least two, such as two, three or four, and they are distributed at intervals along the axis of symmetry or circumferentially of conveyor plate assembly 1323.

[0127] The guide member 1327 is a component that controls the lifting trajectory of the conveyor plate assembly 1323. The guide member 1327 is fixedly connected to the conveyor plate assembly 1323, and at least partially extends into the guide groove 134a of the support frame 134, engaging with the groove wall of the guide groove 134a. To reduce the frictional resistance of the guide member 1327 when moving within the guide groove 134a, improve the response speed of the lifting action, and reduce wear caused by long-term operation, a rolling bearing, roller, or guide pin with a self-lubricating coating can be installed on one side of the guide member 1327 within the guide groove 134a. When the power input member 1321 drives the conveyor assembly 1322 to move horizontally, the guide member 1327 smoothly transitions between the first guide section 134a1, the second guide section 134a2, and the third guide section 134a3, guiding the conveyor plate assembly 1323 along the guide rod 1326 under the guidance of the groove wall of the guide groove 134a.

[0128] Through the above structural coordination, the conveying assembly 1322 maintains good stability during the combined horizontal movement and vertical lifting motion. The guide rod 1326 helps maintain the verticality of the conveying plate assembly 1323 during the lifting process, reducing the risk of the finished electrode sheet 220 tilting or slipping; the cooperation between the guide member 1327 and the guide groove 134a helps reduce the jamming and abnormal noise that may be caused by sliding friction, and helps ensure the continuity of the first conveying module 132 and the second conveying module 133 during intersection and avoidance.

[0129] It should be noted that the specific shape of the conveyor plate assembly 1323, the number and layout of the guide rods 1326, and the specific structural form of the guide member 1327 are not limited in this application embodiment. They can be adapted to the weight and size of the semi-finished electrode sheet 210 and the operating speed of the equipment, as long as the conveyor plate assembly 1323 can be smoothly lifted and lowered on the power input member 1321 and smoothly guided in the guide groove 134a.

[0130] In some embodiments, the conveyor plate assembly 1323 includes a first support plate 1324 and a first adsorption plate 1325; the first support plate 1324 is fixedly connected to the guide rod 1326 and the guide member 1327; the first adsorption plate 1325 is disposed on the first support plate 1324, and the first adsorption plate 1325 is provided with adsorption holes.

[0131] The first support plate 1324 serves as a structural support and force transmission unit. Since the conveyor plate assembly 1323 generates inertial forces during its combined horizontal and vertical movement, the first support plate 1324 can be made of materials with high rigidity and strength (such as aluminum alloy, stainless steel, or carbon steel) to reduce the risk of deformation during high-speed start-stop operations, thereby helping to maintain the flatness of the semi-finished electrode sheet 210 during transport. The first support plate 1324 can be fixed to the guide rod 1326 and guide member 1327 by bolt connection, welding, or integral molding.

[0132] The first adsorption plate 1325 is fixedly mounted on the first support plate 1324 for direct contact with the semi-finished electrode 210 and to provide adsorption force. The adsorption holes on the first adsorption plate 1325 can be arranged in an array or interconnected through surface gas guide grooves. The first adsorption plate 1325 or the first support plate 1324 may have negative pressure channels and gas pipe connectors communicating with the adsorption holes for connecting to an external negative pressure source (such as a vacuum generator or vacuum pump). To reduce the risk of damage to the surface coating of the semi-finished electrode 210 during contact and adsorption, the first adsorption plate 1325 can be made of engineering plastics (such as PEEK, POM, etc.), anodized aluminum alloy, or have a flexible wear-resistant coating such as Teflon or polyurethane applied to its surface.

[0133] By setting the conveyor plate assembly 1323 as a separate structure of the first support plate 1324 and the first adsorption plate 1325, it is beneficial to balance the rigidity of the overall structure with the flexibility of the surface contact. On the other hand, since the first adsorption plate 1325 is a component that directly contacts the finished electrode sheet 220, if it wears out after long-term operation, only the first adsorption plate 1325 needs to be disassembled and replaced separately, without having to replace the entire conveyor plate assembly 1323. This helps to reduce the maintenance cost and downtime of the equipment.

[0134] It should be noted that the specific shape, thickness ratio, arrangement of adsorption holes, and connection method between the first support plate 1324 and the first adsorption plate 1325 are not limited in this application embodiment. They can be adapted to the size, weight, and adsorption force requirements of the semi-finished electrode 210, as long as they can achieve stable bearing and reliable fixation of the semi-finished electrode 210.

[0135] like Figure 6 As shown, in some embodiments, the second conveying module 133 includes a second support plate 1331 and a second adsorption plate 1332. Along the conveying direction X of the material belt, the second support plate 1331 is slidably connected to the support frame 134; the second adsorption plate 1332 is disposed on the second support plate 1331, and adsorption holes are formed on the second adsorption plate 1332.

[0136] The second support plate 1331 serves as the load-bearing base for the second conveying module 133 and is used to achieve a sliding fit with the support frame 134. The second support plate 1331 can be slidably connected to the support frame 134 via guide components such as sliders or linear guides to ensure its stability and straightness when moving along the conveying direction X of the material belt. To reduce the risk of deformation or vibration due to inertia during high-speed reciprocating motion, the second support plate 1331 can be made of metal materials with high rigidity, such as aluminum alloy or stainless steel.

[0137] The second adsorption plate 1332 is fixedly mounted on the second support plate 1331 and is used to directly receive and fix the semi-finished electrode 210. The adsorption holes on the second adsorption plate 1332 can be arranged in a matrix or distributed along a specific trajectory. A negative pressure air channel communicating with the adsorption holes can be provided inside the plate or in the second support plate 1331 to connect to an external vacuum source to generate adsorption force. To reduce the risk of scratching or crushing the surface active material coating of the semi-finished electrode 210 during receiving and transporting, the surface of the second adsorption plate 1332 can be smoothed or made of engineering plastics (such as PEEK, polyoxymethylene, etc.), or it can be coated or attached with flexible wear-resistant materials such as polyurethane or Teflon.

[0138] The second conveying module 133 is configured as a separate structure consisting of the second support plate 1331 and the second adsorption plate 1332. On the one hand, the second support plate 1331 ensures the structural rigidity of the overall movement; on the other hand, the second adsorption plate 1332 provides suitable surface characteristics for contact with the semi-finished electrode sheet 210. Furthermore, when the second adsorption plate 1332 experiences surface wear during long-term, high-frequency material receiving and unloading, it can be disassembled and replaced separately without scrapping the entire second conveying module 133. This helps reduce the later maintenance costs of the equipment and shortens downtime for maintenance.

[0139] It should be noted that the specific sliding fit between the second support plate 1331 and the support frame 134, the arrangement of the adsorption holes of the second adsorption plate 1332, the air path design, and the connection structure between the two are not limited in this application embodiment. They can be adapted to the actual processing cycle and the specifications of the finished electrode 220, as long as reliable adsorption and stable transportation of the semi-finished electrode 210 can be achieved.

[0140] like Figure 7 As shown, in some embodiments, the drive assembly 135 includes: a timing belt 1351 and a drive member 1352. The timing belt 1351 has a first belt edge 1351a and a second belt edge 1351b disposed opposite to each other. A power input member 1321 is fixedly installed on the first belt edge 1351a, and a second conveying module 133 is fixedly installed on the second belt edge 1351b. The drive member 1352 is used to drive the timing belt 1351 to reciprocate.

[0141] Specifically, the synchronous belt 1351 can be a polyurethane steel wire synchronous belt or a rubber synchronous belt, and its inner side may be provided with teeth that mesh with pulleys. The first belt edge 1351a and the second belt edge 1351b respectively refer to the upper and lower belt bodies of the annular synchronous belt 1351 during transmission. Since the first belt edge 1351a and the second belt edge 1351b have equal linear velocities and opposite directions of motion when the synchronous belt 1351 reciprocates, the power input component 1321 and the second conveying module 133 are fixed to these two opposite belt edges respectively. When the drive component 1352 drives the synchronous belt 1351 to rotate in both directions, the first conveying module 132 and the second conveying module 133 can be driven to move synchronously in opposite directions.

[0142] The drive component 1352 provides power for the reciprocating rotation of the synchronous belt 1351. In some embodiments, the drive component 1352 includes a drive motor (such as a servo motor or a stepper motor) and a drive pulley that is rotated by the drive motor, with the synchronous belt 1351 fitted onto the drive pulley. To maintain a preset tension on the synchronous belt 1351 and reduce the risk of tooth skipping during operation, the drive assembly 135 may further include a driven pulley and a tensioning mechanism. The driven pulley is disposed opposite to the drive pulley, and the tensioning mechanism is used to adjust the position of the driven pulley to tension the synchronous belt 1351.

[0143] By using a single annular synchronous belt 1351 and utilizing its opposite two sides to drive the two modules, it is beneficial to ensure the speed consistency and position synchronization of the first conveying module 132 and the second conveying module 133 when moving in opposite directions, reducing the risk of control errors or asynchronous cycle time that may occur when using two independent drive sources. On the other hand, this structure reuses one drive source and transmission belt, which helps to simplify the internal structure of the equipment, reduce manufacturing costs, and reduce the space occupied by the equipment.

[0144] It should be noted that the specific material and tooth profile of the synchronous belt 1351, the specific fixing method between the power input component 1321 and the second conveying module 133 and the synchronous belt 1351 (such as connection by pressure plate, screw or special clamp), as well as the specific selection of the drive component 1352 and the setting of the tensioning mechanism, are not limited in this application embodiment. They can be adaptively selected according to the load, stroke and running speed of the equipment, as long as they can drive the power input component 1321 and the second conveying module 133 to move synchronously in opposite directions.

[0145] This application embodiment also provides a control method for a strip cutting device 100, applied to the aforementioned strip cutting device 100, the control method including the following steps:

[0146] S100, control the gripper 112 of the input mechanism 110 to clamp the material strip 200, and control the linear motor 111 to drive the gripper 112 to move a set distance toward the cutting mechanism 120 to complete the feeding of the material strip 200.

[0147] Specifically, after receiving a feeding command, the controller controls the gripper 112 to close and clamp the material belt 200, and controls the linear motor 111 to drive the gripper 112 to move a set distance (i.e., single feeding step distance) along the material belt conveying direction X. After moving to the correct position, a position signal can be fed back to the controller through a position sensor or motor encoder to confirm that the feeding is complete.

[0148] S200, the clamping part 121 of the cutting mechanism 120 is controlled to clamp the material strip 200, and the cutting part 122 is controlled to move down to cut the material strip 200, so as to process the semi-finished electrode sheet 210.

[0149] Specifically, upon receiving the feeding signal, the controller controls the clamping member 121 to move down to the clamping position to fix the strip 200, and then controls the cutting member 122 to move down to the cutting position to cut the strip 200 laterally. This step, through the timing control of "clamping first, then cutting," helps to limit the displacement of the strip 200 at the moment of cutting, reduces the risk of wrinkling or displacement of the strip 200 caused by cutting stress, and ensures the dimensional accuracy of the semi-finished electrode sheet 210.

[0150] S300, after the cutting is completed, control the cutting part 122 to reset away from the material strip 200, and after the control gripper 112 re-clamps the material strip 200, control the clamping part 121 to release the material strip 200.

[0151] Specifically, after the cutting action is completed, the controller first controls the cutting component 122 to rise and reset to the clearance position. Then, after confirming that the gripper 112 has reliably clamped the strip 200, the controller controls the clamping component 121 to rise and reset to the release position. This handover logic helps ensure that the strip 200 remains clamped throughout the mechanism switching process, reducing the risk of the strip 200 retraction or sudden tension changes.

[0152] S400, the conveying module 131 of the control conveying mechanism 130 receives the semi-finished electrode 210 at the detection station A, and the position status of the semi-finished electrode 210 is detected by the detection mechanism 140.

[0153] Specifically, before the cutting part 122 completes the cutting, the controller controls the first conveying module 132 to move to the inspection station A to wait for material reception; after the cutting part 122 completes the cutting, the semi-finished electrode sheet 210 is fixed by vacuum adsorption or mechanical clamping. Subsequently, the inspection mechanism 140 (such as a vision camera) takes pictures or scans the semi-finished electrode sheet 210 to obtain its actual position status on the conveying module 131, and sends the position status data to the controller.

[0154] S500, the control conveyor module 131 carries the semi-finished electrode sheet 210 to the die-cutting station B, adjusts the cutting position of the rounded corner die-cutting mechanism 150 according to the position status detected by the detection mechanism 140, and controls the rounded corner die-cutting mechanism 150 to cut the sharp corner of the semi-finished electrode sheet 210 to obtain the finished electrode sheet 220.

[0155] Specifically, the controller controls the first conveying module 132, which receives the semi-finished electrode sheet 210, to move towards the die-cutting station B. During this process, based on the position status feedback from the detection mechanism 140, the controller controls the position fine-tuning component of the rounded corner die-cutting mechanism 150 to adjust the cutting position of the rounded corner die-cutting mechanism 150, thereby achieving real-time compensation for the positional deviation of the semi-finished electrode sheet 210. After the positional compensation is completed, the controller controls the rounded corner die-cutting mechanism 150 to work, punching the sharp corners of the semi-finished electrode sheet 210. At the same time, the controller can control the second conveying module 133 to move in the opposite direction to the detection station A to prepare to receive the next semi-finished electrode sheet 210, realizing alternating parallel operation of multiple stations.

[0156] S600, the control transmission mechanism 160 conveys the finished electrode sheet 220 outward to complete a single cutting operation of the strip 200.

[0157] Specifically, after the rounded corner die-cutting is completed, the controller controls the first conveying module 132 to release the fixing of the finished electrode sheet 220, and controls the output mechanism 160 to take the finished electrode sheet 220 off the first conveying module 132 and transfer it to the next process or the collection box.

[0158] After step S600 is completed, steps S100 to S600 can be executed repeatedly until a stop signal is received. During the cyclic execution, the first conveying module 132 and the second conveying module 133 alternately switch between the detection station A and the die-cutting station B, so that the actions of feeding, cutting, detection, die-cutting and unloading overlap in sequence, which helps to shorten the waiting time of a single processing cycle and improve the overall production cycle of the strip cutting equipment 100.

[0159] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0160] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not 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 application.

[0161] The terms “first,” “second,” and “third” (if any) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0162] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or apparatus.

[0163] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended 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. Such 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.

Claims

1. A strip cutting device, characterized in that, For cutting the strip (200) into finished electrode sheets (220), including the following components arranged sequentially along the strip conveying direction (X): An infeed mechanism (110) is used to transfer the material strip (200). The cutting mechanism (120) includes a clamping member (121) and a cutting member (122). The clamping member (121) is used to clamp the material strip (200), and the cutting member (122) is used to cut the material strip (200) into semi-finished electrode sheets (210). The clamping member (121) and the cutting member (122) are arranged sequentially along the material strip conveying direction (X). The conveying mechanism (130) includes at least two conveying modules (131), which are used to fix the semi-finished electrode sheet (210). Each conveying module (131) can switch back and forth between the inspection station (A) and the die-cutting station (B) to receive the semi-finished electrode sheet (210) cut by the cutting part (122) at the inspection station (A) and convey the semi-finished electrode sheet (210) from the inspection station (A) to the die-cutting station (B). The testing mechanism (140) is set up corresponding to the testing station (A) and is used to detect the position status of the semi-finished electrode sheet (210); A rounded corner die-cutting mechanism (150) is set up corresponding to the die-cutting station (B). Its cutting position can be adjusted according to the position state detected by the detection mechanism (140) to cut the sharp corner of the semi-finished electrode sheet (210) to obtain the finished electrode sheet (220). The conveying mechanism (160) is used to convey the finished electrode sheet (220) processed by the die-cutting station (B) to the outside.

2. The strip cutting equipment according to claim 1, characterized in that, The cutting mechanism (120) further includes: A support base (123) is provided for supporting the material strip (200), and the clamping member (121) is disposed above the support base (123); A driving member (124) is used to drive the clamping member (121) and the cutting member (122) to move along the height direction (Z); Under the driving action of the driving member (124), the clamping member (121) can switch between a clamping position close to the support base (123) to clamp the material strip (200) and a releasing position away from the support base (123) to release the material strip (200). Under the driving action of the drive member (124), the cutting member (122) can switch between a cutting position close to the support (123) to cut the strip (200) and a avoidance position away from the support (123) to avoid the strip (200).

3. The strip cutting equipment according to claim 1, characterized in that, The input mechanism (110) includes: A linear motor (111) is provided along the conveying direction (X) of the material belt; A gripper (112) is used to clamp the material strip (200), and the gripper (112) is installed at the output end of the linear motor (111).

4. The strip cutting equipment according to claim 3, characterized in that, The linear motor (111), the gripper (112), and the clamping member (121) are configured as follows: Under the condition that the clamping member (121) clamps the material strip (200), the gripper (112) releases the material strip (200), and the linear motor (111) drives the gripper (112) to move away from the clamping member (121) by a set distance; And / or, under the condition that the clamping member (121) does not clamp the strip (200), the gripper (112) clamps the strip (200), and the linear motor (111) drives the gripper (112) to move a set distance toward the clamping member (121); And / or, after the gripper (112) releases the strip (200), the linear motor (111) drives the gripper (112) to move a set distance away from the clamping member (121) and re-clamp the strip (200), the clamping member (121) releases the strip (200).

5. The strip cutting equipment according to any one of claims 1-4, characterized in that, The clamping member (121) and the cutting member (122) are configured as follows: Under the condition that the clamping member (121) clamps the strip (200), the cutting member (122) cuts the strip (200); under the condition that the cutting member (122) has completed the cutting and moved away from the strip (200), the clamping member (121) releases the strip (200).

6. The strip cutting equipment according to any one of claims 1-4, characterized in that, The conveying mechanism (130) includes: The support frame (134) has a guide groove (134a) having a first guide section (134a1), a second guide section (134a2), and a third guide section (134a3) that are connected in transition. The first guide section (134a1), the second guide section (134a2), and the third guide section (134a3) all extend along the conveying direction (X) of the material belt, and the height of the second guide section (134a2) is lower than that of the first guide section (134a1) and the third guide section (134a3). The first conveying module (132) includes a power input component (1321) and a conveying assembly (1322). The power input component (1321) is slidably connected to the support frame (134) along the conveying direction (X) of the material belt. The conveying assembly (1322) is used to fix the semi-finished electrode sheet (210) and is slidably connected to the power input component (1321) along the height direction (Z). At least a portion of the conveying assembly (1322) is located in the guide groove (134a). The second conveying module (133) is slidably connected to the support frame (134) along the conveying direction (X) of the material belt, and is used to fix the semi-finished electrode sheet (210). A drive assembly (135) is used to drive the power input unit (1321) and the second conveying module (133) to move synchronously in opposite directions; Wherein, when at least a portion of the conveying assembly (1322) is located within the second guide section (134a2), the height of the conveying assembly (1322) is lower than that of the second conveying module (133).

7. The strip cutting equipment according to claim 6, characterized in that, The conveying assembly (1322) includes: Conveyor plate assembly (1323) is used to fix the semi-finished electrode sheet (210). The guide rod (1326) is fixedly connected to the conveyor plate assembly (1323) and slidably connected to the power input component (1321) along the height direction (Z); The guide member (1327) is fixedly connected to the conveyor plate assembly (1323) and is at least partially located within the guide groove (134a).

8. The strip cutting equipment according to claim 7, characterized in that, The conveyor plate assembly (1323) includes: The first support plate (1324) is fixedly connected to the guide rod (1326) and the guide member (1327). The first adsorption plate (1325) is disposed on the first support plate (1324), and the first adsorption plate (1325) is provided with adsorption holes; And / or, the second conveying module (133) includes: The second support plate (1331) is slidably connected to the support frame (134) along the conveying direction (X) of the material belt. The second adsorption plate (1332) is disposed on the second support plate (1331), and the second adsorption plate (1332) has adsorption holes.

9. The strip cutting equipment according to claim 6, characterized in that, The drive component (135) includes: The synchronous belt (1351) has a first belt edge (1351a) and a second belt edge (1351b) arranged opposite each other along the height direction (Z), the power input unit (1321) is fixedly connected to the first belt edge (1351a), and the second conveying module (133) is fixedly connected to the second belt edge (1351b). The drive component (1352) is used to drive the synchronous belt (1351) to reciprocate.

10. A control method for a strip cutting device according to any one of claims 2-9, characterized in that, Includes the following steps: The gripper (112) of the control input mechanism (110) clamps the material strip (200), and the linear motor (111) drives the gripper (112) to move a set distance toward the cutting mechanism (120) to feed the material strip (200); The clamping member (121) of the cutting mechanism (120) is controlled to clamp the strip (200), and the cutting member (122) is controlled to move down to cut the strip (200) to obtain a semi-finished electrode sheet (210). After the cutting is completed, the cutting part (122) is controlled to reset and move away from the strip (200), and after the clamping jaw (112) is controlled to re-clamp the strip (200), the pressing part (121) is controlled to release the strip (200). The conveying module (131) of the control conveying mechanism (130) receives the semi-finished electrode sheet (210) at the detection station (A) and controls the detection mechanism (140) to detect the position status of the semi-finished electrode sheet (210); The control conveying module (131) carries the semi-finished electrode sheet (210) to the die-cutting station (B). The cutting position of the rounded corner die-cutting mechanism (150) is adjusted according to the position status detected by the detection mechanism (140), and the rounded corner die-cutting mechanism (150) is controlled to cut the sharp corner of the semi-finished electrode sheet (210) to obtain the finished electrode sheet (220). The control output mechanism (160) conveys the finished electrode sheet (220) outward.

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