Rolling equipment and pole piece processing system

Abstract

The invention relates to the technical field of pole piece processing equipment, in particular to rolling equipment and a pole piece processing system. The rolling equipment comprises a rack, a compression roller device and an adjusting device. The pressing roller device comprises a first pressing roller, a second pressing roller and a moving assembly. The moving assembly is used for driving the second pressing roller to move in the direction close to or away from the second pressing roller in the first direction. The adjusting device is arranged between the first pressing roller and the second pressing roller; the adjusting device comprises a moving part, a contact part and an adjusting driving assembly, the moving part is movably connected to the rack through the adjusting driving assembly, the adjusting driving assembly is used for driving the moving part to move in the second direction forming an included angle with the first direction, and the contact part is connected to the pressing roller device and used for making contact with the moving part; wherein the moving piece and / or the contact piece are / is provided with an inclined plane, and an included angle is formed between the inclined plane and the second direction. According to the rolling equipment, through cooperation of the adjusting device and the moving assembly, the precision and uniformity in the rolling process are remarkably improved.

Description

Technical Field

[0001] The present application relates to the technical field of pole piece processing equipment, and in particular to a rolling device and a pole piece processing system. Background Art

[0002] In the current battery industry, the roller-pressing mechanism of battery cell winding equipment is a crucial component in forming battery pole sheets. Conventional roller-pressing control relies primarily on direct drive, such as by pneumatic or hydraulic cylinders. This approach suffers from insufficient control precision in practice and can easily lead to uneven pole sheet thickness, compromising the integrity and stability of the battery cell.

[0003] More importantly, defects in existing roller-pressing equipment have numerous negative impacts on battery performance. For example, uneven rolling can reduce the surface smoothness of the electrode sheet, which in turn affects the battery's energy density and cycle life. Adhesion issues lead to poor contact between the active material and conductive agent particles, severely reducing the battery's conductivity and bonding strength. This, in turn, exacerbates powder loss over long-term use, significantly reducing the battery's cycle life and safety. Summary of the Invention

[0004] In view of this, the present application provides a rolling device and a pole piece processing system, which are used to solve the problem that the rolling accuracy of the existing rolling mechanism is limited, affecting the pole piece processing quality.

[0005] A first aspect of the present application provides a rolling device, comprising:

[0006] frame;

[0007] A pressing roller device, comprising a first pressing roller, a second pressing roller and a moving assembly, wherein the first pressing roller is rotatably connected to the frame, the second pressing roller is spaced apart from the first pressing roller device and is used to press the electrode sheet, and the second pressing roller is movably connected to the frame via the moving assembly, and the moving assembly is used to drive the second pressing roller to move along a first direction toward or away from the second pressing roller; and

[0008] An adjusting device is arranged between the first pressing roller and the second pressing roller; the adjusting device includes a moving part, a contact part and an adjusting drive assembly, the moving part is movably connected to the frame through the adjusting drive assembly, and the adjusting drive assembly is used to drive the moving part to move along a second direction set at an angle to the first direction, the contact part is connected to the pressing roller device and is used to contact the moving part; wherein, the moving part and / or the contact part is provided with an inclined surface, and the inclined surface is set at an angle to the second direction.

[0009] In one possible implementation, the movable member is provided with a first inclined surface, the contact member is provided with a second inclined surface, the second inclined surface is arranged opposite to the first inclined surface and is used to slide relative to the first inclined surface; and / or the contact member is arranged between the first pressure roller and the movable member.

[0010] In one possible implementation, the adjustment drive assembly includes an adjustment drive member and an adjustment moving mechanism, the adjustment drive member is arranged on the frame, and the adjustment moving mechanism is transmission-connected to the adjustment drive member and the moving member and is used to drive the moving member to move along the second direction.

[0011] In one possible implementation, the adjustment moving mechanism includes an adjustment screw and an adjustment slider, the adjustment screw is connected to the output end of the adjustment drive, and the adjustment screw extends along the second direction, and the adjustment drive is used to drive the adjustment screw to rotate; the adjustment slider is transmission-connected to the adjustment screw and connected to the moving member.

[0012] In one possible implementation, the moving assembly includes a moving drive, a moving frame and a pressure sensor, the moving frame is slidingly connected to the frame, the moving drive is respectively connected to the frame, and the first pressure roller is rotatably connected to the moving frame, and the pressure sensor is respectively connected to the output end of the moving drive and the moving frame.

[0013] In one possible implementation, the rolling device also includes a dust-free cloth device, which includes a conveying component and a spraying component. The conveying component is used to convey the dust-free cloth, and the spraying component is used to spray the cleaning liquid toward the dust-free cloth. The conveying component and the spraying component are arranged on the side of the pressure roller device and correspond to the outer peripheral wall of the pressure roller device; the conveying component includes a unwinding mechanism and a rewinding mechanism, and the unwinding mechanism and the rewinding mechanism are respectively arranged on opposite sides of the spraying component.

[0014] In one possible implementation, the dust-free cloth device further includes a cleaning assembly, the cleaning assembly including a water absorbing member, a water absorbing mounting frame, and a water absorbing pressing member, the water absorbing member being detachably connected to the water absorbing mounting frame, the water absorbing pressing member being respectively connected to the frame and the water absorbing mounting frame, and the water absorbing pressing member being used to drive the water absorbing member to adhere to the outer peripheral wall of the pressure roller device and to contact the outer peripheral wall of the pressure roller device;

[0015] And / or the conveying assembly also includes a unwinding roller, which is arranged between the spraying assembly and the winding mechanism, and the unwinding roller is used to support the dust-free cloth; and / or the conveying assembly also includes a winding roller, which is arranged between the spraying assembly and the winding mechanism, and the winding roller is used to support the dust-free cloth.

[0016] In one possible implementation, the spray assembly includes a spray nozzle, a spray roller, a spray fixing frame and a spray moving mechanism, the spray moving mechanism is connected to the frame, the spray nozzle and the spray roller are connected to the spray moving mechanism, and the spray moving mechanism is used to drive the spray nozzle and the spray roller to move toward or away from the dust-free cloth of the pressure roller device, and the spray roller is used to support the dust-free cloth between the unwinding mechanism and the winding mechanism.

[0017] In one possible implementation, the rolling equipment also includes a scraper device, the scraper device includes a scraper, a scraper mounting frame and a scraper dust suction groove, the scraper mounting frame is connected to the frame, the scraper is detachably connected to the scraper mounting frame, and the scraper is used to scrape impurities on the outer wall of the pressure roller device, the scraper dust suction groove is arranged downstream of the scraper and is used to collect the impurities; and / or the number of the moving components is multiple groups, wherein at least two groups of the moving components are arranged at intervals; and / or the number of the adjusting devices is multiple groups, wherein at least two groups of the adjusting devices are arranged in parallel.

[0018] A second aspect of the present application provides a pole piece processing system, comprising:

[0019] Pole piece processing equipment, used for processing pole pieces; and

[0020] The rolling equipment as described in any one of the above items is used to perform a rolling operation on the pole piece.

[0021] The implementation of the embodiments of the present application has the following beneficial effects:

[0022] The roller pressing equipment of this embodiment significantly improves the precision and uniformity of the pressing process by integrating an adjustment device and a moving assembly. Specifically, the moving assembly drives the second pressing roller to a first position, ensuring contact with the contact member. The adjustment drive assembly then drives the moving member to slide relative to the contact member, transforming the moving member's movement into an adjustment function along the first direction via the inclined surface. This inclined surface drive design not only improves the precision of the pressing process but also addresses the limited control accuracy of conventional roller pressing techniques.

[0023] The combination of an adjustment device and a moving assembly employed in the roller-pressing equipment of this embodiment effectively eliminates unevenness in electrode thickness, thereby improving the quality of the battery electrode formation and enhancing the battery's integration and stability. By precisely controlling the roller-pressing process, the risk of degradation of the electrode surface smoothness is significantly reduced, thereby increasing the battery's energy density and cycle life. Furthermore, the equipment of this embodiment effectively improves the contact quality between the active material and the conductive agent particles, significantly increasing the battery's conductivity and bonding strength, and reducing the cycle life reduction and safety risks associated with powder loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] To more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0025] Figure 1 Shows a perspective view of a rolling device in an embodiment of the present invention;

[0026] Figure 2 A schematic diagram of a partial structure of a rolling device in an embodiment of the present invention is shown;

[0027] Figure 3 A partial structural diagram of an adjusting device in an embodiment of the present invention is shown;

[0028] Figure 4 A schematic diagram of the local structure of a mobile assembly in an embodiment of the present invention is shown;

[0029] Figure 5 A schematic diagram of the partial structure of a dust-free cloth device according to an embodiment of the present invention is shown;

[0030] Figure 6 A partial structural schematic diagram of a dust-free cloth device according to an embodiment of the present invention is shown;

[0031] Figure 7 A schematic diagram showing the principle of a dust-free cloth device in an embodiment of the present invention is shown;

[0032] Reference numerals:

[0033] 10. Roller pressing equipment;

[0034] 100, rack;

[0035] 200, pressure roller device; 210, first pressure roller; 211, first driving member; 212, first roller body; 220, second pressure roller; 221, second driving member; 222, second roller body; 230, moving assembly; 231, moving driving member; 232, moving frame; 233, pressure sensor;

[0036] 300, adjustment device; 310, moving member; 311, first inclined surface; 320, contact member; 321, second inclined surface; 330, adjustment drive assembly; 331, adjustment drive member; 332, adjustment moving mechanism; 3321, adjustment screw rod; 3322, adjustment slider;

[0037] 400, dust-free cloth device; 410, conveying assembly; 411, unwinding mechanism; 4111, unwinding shaft; 4112, unwinding drive member; 412, rewinding mechanism; 4121, rewinding shaft; 4122, rewinding drive member; 413, unwinding roller; 414, rewinding roller; 420, spraying assembly; 421, spraying nozzle; 422, spraying roller; 423, spraying moving mechanism; 4231, spraying mounting frame; 4232, spraying adjustment member; 430, cleaning assembly; 431, water absorbing member; 432, water absorbing mounting frame; 433, water absorbing pressing member;

[0038] 500, scraper device; 510, scraper; 520, scraper mounting frame; 530, scraper dust suction groove. DETAILED DESCRIPTION

[0039] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are 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.

[0040] In the current battery industry, the roller-pressing mechanism of battery cell winding equipment is a crucial component in forming battery pole sheets. Conventional roller-pressing control relies primarily on direct drive, such as by pneumatic or hydraulic cylinders. This approach suffers from insufficient control precision in practice and can easily lead to uneven pole sheet thickness, compromising the integrity and stability of the battery cell.

[0041] More importantly, defects in existing roller-pressing equipment have numerous negative impacts on battery performance. For example, uneven rolling can reduce the surface smoothness of the electrode sheet, which in turn affects the battery's energy density and cycle life. Adhesion issues lead to poor contact between the active material and conductive agent particles, severely reducing the battery's conductivity and bonding strength. This, in turn, exacerbates powder loss over long-term use, significantly reducing the battery's cycle life and safety.

[0042] Based on this, see Figures 1 to 7 As shown, an embodiment of the present invention provides a rolling device 10, which includes a frame 100, a roller device 200 and an adjusting device 300; the roller device 200 includes a first roller 210, a second roller 220 and a moving assembly 230, the first roller 210 is rotatably connected to the frame 100, the second roller 220 is spaced apart from the first roller 210, and is used for rolling the electrode sheet, and the second roller 220 is movably connected to the frame 100 through the moving assembly 230, and the moving assembly 230 is used to drive the second roller 220 to move along the first direction toward or away from the second roller 220. The adjusting device 300 is arranged between the first pressing roller 210 and the second pressing roller 220; the adjusting device 300 includes a moving member 310, a contact member 320 and an adjusting drive assembly 330, the moving member 310 is movably connected to the frame 100 through the adjusting drive assembly 330, and the adjusting drive assembly 330 is used to drive the moving member 310 to move in a second direction set at an angle to the first direction, the contact member 320 is connected to the pressing roller device 200 and is used to contact the moving member 310; wherein, the moving member 310 and / or the contact member 320 is provided with an inclined surface, and the inclined surface is set at an angle to the second direction.

[0043] The roller pressing apparatus 10 of this embodiment significantly improves the precision and uniformity of the rolling process by providing a coordinated arrangement of the adjustment device 300 and the movable assembly 230. Specifically, the movable assembly 230 drives the second roller 220 to first move to the first position, ensuring contact with the contact member 320. The adjustment drive assembly 330 then drives the movable member 310 to slide relative to the contact member 320, thereby converting the movement of the movable member 310 into an adjustment function along the first direction via the provided inclined surface. The use of an inclined surface drive design not only improves the precision of the rolling process but also addresses the problem of insufficient control precision in conventional rolling processes.

[0044] The combination of the adjustment device 300 and the moving component 230 used in the rolling equipment 10 of this embodiment can effectively eliminate the unevenness of the electrode thickness, thereby improving the molding quality of the battery electrode and enhancing the integration and stability of the battery. By precisely controlling the rolling process, it greatly reduces the risk of reduced surface smoothness of the electrode, and improves the energy density and cycle life of the battery. In addition, the equipment of this embodiment also effectively improves the contact quality between the active material and the conductive agent particles, significantly improves the conductivity and bonding strength of the battery, and reduces the cycle life reduction and safety hazards caused by powder loss. It should be noted that in this embodiment, the first direction can be Figure 1 The X direction in the second direction can be Figure 1 The X and Y directions are perpendicular to each other. This orientation allows the system to achieve precise spatial configuration and motion control when adjusting.

[0045] Specifically, the first pressing roller 210 includes a first driving member 211 and a first roller body 212. The first driving member 211 is fixedly connected to the frame 100, and its output end is connected to the first roller body 212, ensuring the repeated rotation of the roller body. Driven by the first driving member 211, the first roller body 212 can operate at a stable rotation speed, thereby achieving an efficient rolling process. The second pressing roller 220 includes a second driving member 221 and a second roller body 222, and the second driving member 221 is also fixed to the frame 100. Similarly, the second roller body 222 is connected to the output end of the second driving member 221 and rotated by the driving member. This similar structural design effectively maintains the design consistency and operational simplicity of the entire rolling system.

[0046] Through the cooperation of the first driving member 211 and the second driving member 221, the rotation of the first roller 212 and the second roller 222 can be flexibly driven to form an effective pressing mechanism to accurately roll the electrode located between the two. The advantage of this design is that it can ensure uniform pressing force during the rolling process, so that the consistency of the electrode thickness can be improved, thereby significantly improving the overall performance of the battery. In a preferred embodiment, the rolling equipment 10 can be suitable for secondary rolling processing. At this time, by further processing the formed electrode, its processing quality can be improved to ensure that the final battery output specifications meet higher standards. This secondary rolling process is particularly suitable for use in the production of high-energy-density batteries to ensure the excellent characteristics of the electrode.

[0047] In a specific implementation, the first drive member 211 and the second drive member 221 can be selected as drive motors to improve the overall performance of the rolling equipment. When selecting drive motors, the efficiency and effectiveness of the rolling equipment can be significantly improved by rationally selecting different types of motors. For example, the use of servo motors can enable the drive members to achieve higher control accuracy and a wider speed adjustment range. This high-precision control capability ensures that the pressure applied to the pole piece can be evenly distributed during the pole piece rolling process, thereby effectively reducing the risk of unstable product performance due to speed fluctuations. In some embodiments, the first drive member 211 and the second drive member 221 can be connected to the roller body via a reduction gear. This design not only effectively reduces the load on the drive member, but also improves the overall reliability of the rolling device 200. The use of a reduction gear can achieve a higher torque output without increasing the power of the drive motor, thereby reducing energy consumption and the overall weight of the equipment. In addition, the provision of a reduction gear also helps to improve transmission efficiency, thereby reducing energy loss during power transmission.

[0048] In one embodiment, the movable member 310 is provided with a first inclined surface 311, and the contact member 320 is provided with a second inclined surface 321, the second inclined surface 321 is arranged opposite to the first inclined surface 311 and is used to slide relative to the first inclined surface 311; and / or the contact member 320 is arranged between the first pressure roller 210 and the movable member 310.

[0049] By arranging the first inclined surface 311 and the second inclined surface 321 in coordination, the adjustment device 300 can precisely control the gap between the first and second pressure rollers 210 and 220. Specifically, when the second pressure roller 220 is first driven to the first position by the moving assembly 230, it comes into contact with the adjustment device 300 and participates in the dynamic adjustment of the gap. Subsequently, as the second pressure roller 220 moves, driven by the moving assembly 230, the adjustment device 300 utilizes an inclined sliding adjustment method, achieving very precise distance adjustment.

[0050] In one embodiment, the inclination angle of the movable member 310 can be set to 1:100. At this ratio, when the movable member 310 moves horizontally by 1 mm, the gap between the first and second rollers 210 and 220 changes by only 0.01 mm. This micron-level adjustability makes adjustments during the rolling process more sensitive and precise, effectively improving rolling quality and ensuring application in high-precision working environments.

[0051] Specifically, the angle R between the first inclined surface 311 and the second direction can be set in the range of 0° to 2°. This design choice provides the adjustment system with a very small inclined surface inclination, allowing for a more precise adjustment effect during the fine-tuning process.

[0052] Setting the inclination angle of the first inclined surface 311 between 0° and 2° means that when the movable member 310 moves in the second direction (Y direction), the inclined surface can guide it to produce a slight displacement change, utilizing the geometric properties of the inclined surface to convert the movement in the second direction into an adjustment in the first direction (X direction). This small angle setting makes the adjustment more delicate, meeting the requirements of high-precision machining. Through extremely small displacement changes, it is possible to achieve fine adjustment of the pole piece thickness, ensuring that each adjustment corresponds to the required accuracy.

[0053] It should be noted that, although the angle between the first inclined surface 311 and the second direction is set to a range of 0° to 2°, the specific angle value can be fine-tuned according to actual application needs. Specifically, the angle R can be 0.5°, 1°, 1.5°, or 2°, which is not uniquely limited here. For example, if the angle is set to 0°, the movement of the movable member 310 in the second direction will not produce any lateral adjustment, and when the angle is set to close to 2°, the movement along the second direction will introduce a more obvious first direction displacement change. This flexibility enables the device to adapt to the adjustment requirements brought about by different process parameters and material properties.

[0054] In a preferred embodiment, the surfaces of the first bevel 311 and the second bevel 321 can be provided with a wear-resistant coating to improve the durability between the moving part 310 and the contact part 320. For example, the provision of a Teflon layer can provide self-lubricating properties, which not only reduces friction and improves transmission efficiency, but also its good wear resistance allows the bevel structure to maintain stable performance after multiple sliding. The design of this wear-resistant coating can extend the service life of the components, reduce the maintenance frequency, and thus improve the reliability of the overall equipment. It should be noted that the contact part 320 can be provided on the first pressing roller 210 or the second pressing roller 220, so that the position between the first pressing roller 210 and the second pressing roller 220 can be accurately adjusted by the adjustment device 300. In a specific implementation, the setting position of the contact part 320 directly affects the flexibility and accuracy of the overall gap adjustment during the rolling process.

[0055] In some embodiments, both the first pressing roller 210 and the second pressing roller 220 are provided with a contact member 320. This design has the advantage that, when the movable member 310 moves, both the first pressing roller 210 and the second pressing roller 220 can be adjusted simultaneously. This not only improves adjustment efficiency but also ensures a more consistent change in the gap between the two rollers, achieving a more stable rolling effect.

[0056] For example, in a specific embodiment, when the contact member 320 is provided on the first and second pressure rollers 210 and 220, the dynamic changes of the contact member 320 can force both rollers to adjust simultaneously, maintaining the angle between them at an optimal state, thus avoiding the deviation that may occur due to independent adjustment. This design enables the system to cope with uneven materials and changing working conditions during the production process, improving operational reliability and consistency, and is not intended to be exclusive here.

[0057] Specifically, the adjustment drive assembly 330 includes an adjustment drive member 331 and an adjustment moving mechanism 332. The adjustment drive member 331 is provided on the frame 100. The adjustment moving mechanism 332 is transmission-connected to the adjustment drive member 331 and the moving member 310 and is used to drive the moving member 310 to move along the second direction.

[0058] The adjustment drive element 331 can be implemented in a variety of forms, the most common of which is a drive motor. This motor has efficient energy conversion capabilities and can output mechanical energy to drive the adjustment moving mechanism 332, thereby achieving motion control of the moving element 310. Drive motors also typically have fast response speeds and excellent control accuracy, adapting to rapidly changing production environments and ensuring efficient and stable system operation.

[0059] In certain embodiments, the adjustment drive 331 may utilize a combination of a servo motor and a speed reducer. A servo motor can provide high-precision position control and good dynamic response performance, while its combination with a speed reducer allows the system to achieve greater output torque at lower speeds. This design has the advantage of effectively amplifying the motor's output torque through the speed reducer, meeting the requirements of higher load regulation. Furthermore, compared to using a direct motor, it can reduce friction and wear in some cases, extending its service life.

[0060] The design principle of the adjustable drive assembly 330 is to precisely control the position of the movable element 310 by converting electrical energy into mechanical energy through a motor and transmitting this mechanical motion through the adjustable moving mechanism 332. The stability and accuracy of this process directly affect the accuracy of the gap between the rollers, and thus the quality of the processed material. The efficiency and reliability of the adjustable drive assembly 330 provide strong support for the entire roller pressing system.

[0061] To further ensure system flexibility and adaptability, the adjustable drive element 331 can be adjusted and configured according to actual needs. In certain applications, depending on the required control accuracy and response speed, the adjustable drive element 331 may be a stepper motor, a DC motor, or other motor type. This allows for tailoring its operating mode to meet diverse production requirements. For example, a stepper motor excels in applications requiring higher control accuracy, while a DC motor is more suitable for applications requiring faster response, thereby optimizing system performance.

[0062] In one embodiment, the adjustment mechanism 332 includes an adjustment screw 3321 and an adjustment slider 3322. The adjustment screw 3321 is connected to the output end of the adjustment driver 331 and extends in the second direction. The adjustment driver 331 is used to drive the adjustment screw 3321 to rotate. The adjustment slider 3322 is transmission-connected to the adjustment screw 3321 and connected to the movable member 310. The design principle is to utilize the rotational motion of the screw to convert the rotation into linear motion of the slider, thereby achieving precise adjustment of the movable member 310.

[0063] Specifically, the rotational connection design between the adjustment screw 3321 and the frame 100 enables the screw to achieve smooth rotational motion when driven by the adjustment driver 331. Through this connection, the adjustment driver 331 can effectively transmit power when driving the adjustment screw 3321 to rotate, allowing the adjustment slider 3322 to move along the direction of the adjustment screw 3321, thereby driving the movable member 310 to adjust its corresponding position relative to the contact member 320. This structure not only ensures the stability of the movement process, but also improves the flexibility and accuracy of the adjustment, thereby being able to adapt to the processing requirements of different materials and working conditions.

[0064] In a preferred embodiment, the adjustment mechanism 332 may also be provided with a linear guide structure to further improve the smoothness and precision of the movement of the adjustment slider 3322. This linear guide structure, which can take the form of a roller guide rail, a linear slide rail, or the like, effectively reduces frictional resistance during the slider's movement, ensuring that the slider remains parallel to the axis of the adjustment screw 3321 during movement. Furthermore, the linear guide prevents the slider from tilting or rotating during movement, thereby fundamentally improving the stability and predictability of the adjustment process.

[0065] In specific implementations, the adjustment slider 3322 can be made of high-strength engineering plastics or metal alloys. By optimizing the slider's design and processing, system friction can be significantly reduced, energy loss can be minimized, and movement response speed and accuracy can be improved. For example, using a slider made of low-friction material can effectively prevent sticking, ensuring that the moving member 310 remains smooth and stagnant during adjustment, ensuring consistent and high-quality finished products.

[0066] Furthermore, the moving assembly 230 includes a moving drive 231, a moving frame 232, and a pressure sensor 233. The moving frame 232 is slidably connected to the frame 100. The moving drive 231 is connected to the frame 100, and the first pressure roller 210 is rotatably connected to the moving frame 232. The pressure sensor 233 is connected to the output end of the moving drive 231 and the moving frame 232. The design of the moving drive 231 can adopt various forms, such as an electric motor, a pneumatic cylinder, or a hydraulic cylinder, to adapt to different working environments and needs.

[0067] The sliding connection design of the movable frame 232 ensures that it can smoothly contact the frame 100 during the movement, thereby reducing friction and wear and improving the efficiency and stability of the overall system. The setting of the pressure sensor 233 in the movable component 230 plays a vital role. Through its design of being connected between the output end of the movable drive member 231 and the movable frame 232, it can monitor the pressure applied by the pressure roller in real time and feed it back to the control system. In this way, the system can adjust the output of the movable drive member 231 according to the detection results of the pressure sensor 233, and realize precise control of the pressure applied to the first pressure roller 210. This closed-loop control mechanism effectively improves the processing accuracy, avoids processing defects caused by uneven pressure, and thus improves the quality of the product.

[0068] In a specific implementation, the types of mobile drive components 231 may include stepper motors, servo motors or hydraulic drive devices, among others, wherein the combination of the servo motor and the servo control system can provide high-precision motion control for the mobile frame 232, which can not only quickly respond to control instructions but also achieve subtle adjustments. The advantage of this technical feature is that it can maintain high-precision pressure control on the basis of high speed, ensuring the rationality of various parameters during the processing. The pressure sensor 233 can be installed in different ways, such as embedded inside or outside the mobile frame 232, so as to accurately measure the pressure applied to the first pressure roller 210. In addition, in order to improve the reliability of the system, the pressure sensor 233 can be provided with a redundant design, such as using multiple pressure sensors for data comparison and verification, which can ensure that the system still maintains normal function in the event of a single point failure.

[0069] In a preferred embodiment, the mobile drive member 231 can utilize a gas-liquid booster cylinder as its primary drive device, leveraging its high efficiency to achieve the pressure application function on the second pressure roller 220. When air pressure first rapidly propels the second pressure roller 220 to a preset distance of 5 mm, the gas-liquid booster cylinder switches to a hydraulic pressurization phase, where the hydraulic system gradually applies pressure until the contact member 320 contacts the mobile member 310, ensuring uniform pressure between the rollers.

[0070] During this process, the adjusting drive member 331 plays a crucial role. As the contact member 320 presses against the moving member 310, the adjusting drive member 331, through its connected adjusting screw 3321 and adjusting slider 3322, further pushes the moving member 310 in the desired direction for fine adjustments. This precise fine-tuning mechanism enables precise control of the roller gap during actual production, optimizing the rolling effect and improving the quality of the finished product.

[0071] When the roller gap detected by pressure sensor 233 deviates from the preset value, the system quickly feeds this data back to the adjustment driver 331, which automatically adjusts the gap to achieve closed-loop control. This closed-loop control mechanism is crucial in production environments, improving the equipment's response speed and adjustment accuracy while also effectively preventing production issues caused by improper gap control.

[0072] Specifically, when the pressure roller device 200 is working, the pressure sensor 233 will continuously monitor the changes in the gap and record the current working status in real time. The preset value is the target gap set according to the actual production process requirements. When it is detected that the error between the actual gap and the preset value exceeds the allowable range, the pressure sensor 233 will send the deviation information to the adjustment drive 331, start the adjustment mechanism, and fine-tune the moving part 310 by adjusting the coordinated work of the screw rod 3321 and the slider 3322 to ensure the continuous optimization of the gap between the pressure rollers. The advantage of this closed-loop control system is that it can be dynamically adjusted during the production process to ensure that the equipment is always maintained in the optimal working state and to minimize material defects caused by improper gaps.

[0073] In a preferred embodiment, the number of movable assemblies 230 is set to multiple groups, and at least two groups of movable assemblies 230 are spaced apart. This design provides multiple driving points, which can more evenly and efficiently drive the second pressure roller 220, thereby significantly improving the overall driving effect of the pressure roller device 200.

[0074] Specifically, when multiple moving assemblies 230 operate simultaneously, the various groups of assemblies coordinate with each other to jointly apply pressure to the second pressing roller 220. This arrangement not only enables the pressing roller to maintain a more uniform pressure during the pressing process, effectively reducing local loads and wear, but also achieves a better force transmission effect within the working range of the pressing roller, thereby improving the overall quality of the pressing.

[0075] This arrangement of multiple moving components significantly enhances system stability. The independent operation of each moving component 230 enables pressure adjustment in multiple directions, increasing the system's flexibility in responding to material variations and process path adjustments. For example, when processing electrodes of varying thickness or material properties, the system can rapidly adjust and respond in real time to maintain the desired operating state.

[0076] Furthermore, multiple sets of moving assemblies 230 drive the second pressure roller 220 in a distributed manner, effectively reducing the risk of overloading a single component and improving the reliability of the equipment. If a single moving assembly fails, the remaining assemblies can still ensure normal operation of the equipment, avoiding system downtime and thus improving production efficiency. Furthermore, the parallel configuration of multiple assemblies can disperse the heat generated by the equipment during long-term operation, reducing mechanical deformation caused by thermal expansion and contraction, thereby extending the overall service life of the equipment.

[0077] In one embodiment, the roller pressing apparatus 10 further includes a dust-free cloth device 400 to automatically clean the roller assembly 200. The dust-free cloth device 400 includes a conveying assembly 410 and a spraying assembly 420. The coordinated operation of the dust-free cloth device 400 effectively keeps the roller clean, maintaining its optimal working condition, and thereby ensuring product quality during the roller pressing process.

[0078] The conveyor assembly 410 is primarily responsible for conveying the cleanroom wipes and comprises a rewinding mechanism 411 and a rewinding mechanism 412. The rewinding mechanism 411 unwinds a new cleanroom wipe from the reel, while the rewinding mechanism 412 rewinds the used wipe. This design offers the advantage of continuous conveyance of the wipes, enabling real-time replacement and handling during the production process, effectively reducing the accumulation of dirt and particulate matter caused by prolonged use.

[0079] The spray assembly 420 is designed to spray a cleaning liquid, such as high-purity cleaning liquid like deionized water, onto the dust-free cloth conveyed by the conveyor assembly 410. The spray assembly 420 is located on the side of the pressure roller assembly 200, aligned with the outer wall of the pressure roller assembly 200. This layout ensures that the cleaning liquid fully covers the surface of the dust-free cloth before it is conveyed to the pressure roller, achieving a better cleaning effect.

[0080] When using the roller pressing device 10 of this embodiment, the entire dust-free cloth device 400 operates as follows: First, the dust-free cloth is unwound by the unwinding mechanism 411. Then, as the dust-free cloth passes through the spraying assembly 420, the spraying assembly begins to spray cleaning liquid onto it. This spraying of cleaning liquid can occur while the dust-free cloth is being conveyed, effectively ensuring that the dust-free cloth is activated and capable of cleaning before reaching the pressing roller.

[0081] When the dust-free cloth reaches the roller assembly 200, it adheres to the roller surface and comes into contact with it, removing any remaining particles and dirt. This cleaning process not only helps extend the roller's lifespan but also effectively prevents material quality issues caused by contamination, such as uneven electrode surfaces or poor adhesion.

[0082] After cleaning, the dust-free cloth is conveyed to the reeling mechanism 412, which collects and rolls up the used dust-free cloth for subsequent disposal and replacement. This smooth automatic cleaning mechanism ensures that the roller press equipment can maintain efficient cleaning during long production processes, thereby improving equipment reliability and production stability.

[0083] Specifically, the unwinding mechanism 411 in the dust-free cloth device 400 includes an unwinding shaft 4111 and an unwinding driver 4112. The unwinding driver 4112 is fixedly connected to the frame 100 and is responsible for providing power to the entire unwinding mechanism 411. The unwinding shaft 4111 is connected to the output end of the unwinding driver 4112, and the power of the driver is used to drive the unwinding shaft 4111 to rotate, thereby unwinding the dust-free cloth. This design ensures that the dust-free cloth can be discharged smoothly and continuously, providing the necessary raw materials for the subsequent cleaning process.

[0084] The rewinding mechanism 412 includes a rewinding shaft 4121 and a rewinding drive 4122. Similar to the unwinding mechanism, the rewinding drive 4122 is also connected to the frame 100 and is responsible for controlling the rotation of the rewinding shaft 4121. The rotation of the rewinding shaft 4121 smoothly retracts the used cleanroom wipes, maintaining a continuous conveyance of the cleanroom wipes.

[0085] In a preferred embodiment, to enhance the securement of the dust-free cloth roll, both the unwinding shaft 4111 and the rewinding shaft 4121 are equipped with a tensioning structure. This tensioning structure is designed to ensure that the dust-free cloth maintains appropriate tension during the unwinding and rewinding processes, ensuring reliable transport of the dust-free cloth during operation. Proper tension effectively prevents loosening of the dust-free cloth, leading to tearing or wrinkling, thereby ensuring optimal cleaning performance during roller cleaning.

[0086] Furthermore, the dust-free cloth device 400 also includes a cleaning assembly 430, which comprises a water absorber 431, a water absorber mounting bracket 432, and a water absorber pressing member 433. The water absorber 431 is detachably fixed to the water absorber mounting bracket 432. This structural design allows the user to easily disassemble and assemble the water absorber 431 when it needs to be replaced or cleaned, facilitating daily maintenance and upkeep.

[0087] The water-absorbing and pressing member 433 is connected to the frame 100 and the water-absorbing mounting frame 432, respectively, and is used to drive the water-absorbing member 431 to closely adhere to the outer peripheral wall of the pressure roller assembly 200 and ensure good contact with the outer peripheral wall of the pressure roller assembly 200. This design is intended to effectively adhere the water-absorbing member 431 to the surface of the pressure roller through the pressing action, thereby enhancing the water absorption effect and cleaning efficiency, thereby ensuring that the surface of the pressure roller is dry.

[0088] In this embodiment, the cleaning assembly 430 is positioned downstream of the conveying assembly 410 in the direction of rotation of the pressure roller assembly 200. Specifically, after the pressure roller in the pressure roller assembly 200 is wiped with a dust-free cloth, the cleaning assembly 430 can contact the surface of the pressure roller using the absorbent element 431 to further clean it and ensure that the surface remains dry. This process also assists in the conveyance of the dust-free cloth, providing additional secondary cleaning and preventing surface dirt from affecting the rolling operation of the pressure roller assembly 200.

[0089] The detachable connection design allows users to easily install and replace the absorbent element 431, specifically through the combination of a pressure plate and screws. Users can simply remove and install the pressure plate to replace the absorbent element 431, improving maintenance convenience and flexibility. This not only helps reduce equipment downtime, but also keeps the equipment clean and operating efficiently.

[0090] The water-absorbing pressure member 433 adjusts the torque to drive the water-absorbing mounting frame 432 to press against the surface of the pressure roller, ensuring that the water-absorbing member 431 maintains good contact, thereby optimizing the water absorption effect. If the water-absorbing member 431 does not make good contact with the pressure roller surface, it may result in insufficient cleaning effect, so ensuring tight and stable contact is very important.

[0091] In some embodiments, the absorbent element 431 can be made of a flexible material with good water absorption properties, such as a dust-free cloth. This material has the advantage of excellent water absorption and a certain degree of flexibility, effectively preventing damage to the roller surface during the cleaning process. This design concept is intended to ensure that maintenance on the roller surface does not affect its original structure and performance.

[0092] Specifically, the water absorbing and pressing member 433 may use a cylinder or a spring as a driving mechanism to achieve an effective pressing function on the water absorbing member 431. In these two solutions, each has its own unique advantages and can adapt to the needs of different application scenarios.

[0093] If a pneumatic cylinder is used as the water-absorbing and pressing member 433, the structural design of the cylinder system provides high adjustment precision and responsiveness. By controlling the air pressure, the cylinder can quickly and evenly apply force, ensuring close contact between the water-absorbing member 431 and the surface of the pressing roller assembly 200. This design allows users to easily adjust the pressing force and duration according to specific needs, adapting to different cleaning conditions. Furthermore, the use of a pneumatic cylinder facilitates automated control during the cleaning process, further improving the system's operational efficiency and intelligence.

[0094] If a spring is chosen as the water-absorbing pressure member 433, the spring has a simple design and a certain degree of adaptability. The spring can provide continuous and uniform pressure, ensuring that the water-absorbing member 431 always adheres to the surface of the pressure roller. The advantages of spring compression are its simple structure, low cost, and ease of maintenance and replacement. In some cases, the use of a spring can enable the equipment to maintain stable contact pressure under different operating conditions. Especially in environments requiring continuous operation, the spring can effectively reduce the risk of wear caused by unstable pressure.

[0095] Whether using a cylinder or a spring, the design of the water-absorbing and pressing element 433 should take into account the material properties of the pressure roller surface and the water-absorbing element 431 to avoid unnecessary damage during the pressing process. Maintaining appropriate contact pressure is also crucial for effective cleaning, ensuring that the water-absorbing element can effectively absorb and remove moisture, dirt, and impurities from the pressure roller surface during operation.

[0096] In one embodiment, the conveyor assembly 410 further includes an unwinding roller 413 and a rewinding roller 414. The unwinding roller 413 is positioned between the spray assembly 420 and the rewinding mechanism 412. Its primary function is to support the dust-free cloth and provide proper guidance and support during its conveyance. This design ensures that the dust-free cloth discharged from the unwinding mechanism 411 can smoothly pass through the spray assembly 420 along a predetermined path, effectively spraying the cleaning liquid and achieving a good cleaning effect.

[0097] The provision of unwinding rollers 413 allows for smoother transport of the dust-free cloth, reducing the effects of friction and distortion. Furthermore, the roller design provides appropriate tension, ensuring that the dust-free cloth is less likely to fall or wrinkle as it passes through the spray assembly 420, thereby ensuring that the cleaning liquid is evenly sprayed onto the surface of the dust-free cloth. This guiding effect helps improve the efficiency of dust-free cloth transport and ensures high-quality cleaning.

[0098] Similarly, the installation of the rewinding roller 414 also plays a key role in the overall conveying process. Positioned between the spray assembly 420 and the rewinding mechanism 412, the rewinding roller 414 is primarily used to support the cleaned dust-free cloth and ensure it is smoothly guided to the rewinding mechanism 412. During this process, the rewinding roller 414 effectively prevents the dust-free cloth from slipping or becoming unstable during conveyance, while also reducing the risk of damage due to improper operation.

[0099] By simultaneously installing unwinding rollers 413 and rewinding rollers 414, the stability of the entire conveyor assembly 410 is significantly improved. The use of these rollers allows the system to maintain smooth conveying when handling dust-free cloths of varying lengths and thicknesses, without the operational complications caused by changes in the cloth material. The rational design of the entire conveying path not only improves the stability of the dust-free cloth during transportation, but also further enhances the efficiency of the cleaning device and the quality of the finished product.

[0100] In actual applications, the material and structural design of the unwinding roller 413 and the winding roller 414 can be further optimized. For example, the roller surface can be made of a wear-resistant material to reduce wear caused by friction and extend its service life. In addition, the position of the unwinding roller 413 and the winding roller 414 can be fine-tuned according to actual production requirements to accommodate the use of different types of dust-free cloths.

[0101] Specifically, the spray assembly 420 comprises a spray nozzle 421, a spray roller 422, a spray mounting bracket, and a spray mechanism 423. The spray mechanism 423 is connected to the frame 100 and is responsible for driving the spray nozzle 421 and spray roller 422 toward or away from the dust-free cloth pressing roller assembly 200. Since the spray nozzle 421 sprays the cleaning liquid, while the spray roller 422 supports the dust-free cloth between the unwinding mechanism 411 and the rewinding mechanism 412, this configuration effectively integrates cleaning and conveying functions.

[0102] The spraying mechanism 423 flexibly drives the spray nozzle 421 and the spray roller 422 to move relative to each other, allowing precise control of the distance between the dust-free cloth and the pressure roller. By adjusting this distance, the spray nozzle 421 ensures that the cleaning liquid evenly covers the surface of the dust-free cloth during spraying, thereby enhancing the cleaning effect. Furthermore, the appropriate distance setting helps prevent liquid from splashing directly onto the pressure roller during spraying, thereby keeping the pressure roller dry and operating normally.

[0103] The design of the spray roller 422 further enhances the stability of the dust-free cloth during transport. By integrating the spray roller 422 into the spray assembly 420, it effectively disperses the tension between the unwinding mechanism 411 and the rewinding mechanism 412, providing adequate support for the dust-free cloth, preventing it from slipping or wrinkling during transport and ensuring smooth passage. This stability not only improves cleaning efficiency but also reduces the risk of failures caused by improper cloth movement.

[0104] In one embodiment, the spraying mechanism 423 includes a spraying mounting frame 4231 and a spraying adjustment member 4232. The spraying nozzle 421 is mounted on the spraying mounting frame 4231, while the spraying roller 422 is fixed to the spraying mounting frame 4231 via a rotational connection. This structure ensures effective coordination between the spraying nozzle 421 and the spraying roller 422, enabling simultaneous cleaning and support of the dust-free cloth.

[0105] The spray mounting frame 4231 is connected to the frame 100 via a spray adjustment member 4232. This design allows the spray adjustment member 4232 to transmit force to the spray mounting frame 4231, thereby enabling the spray mounting frame 4231 to move in a predetermined direction. The spray adjustment member 4232 provides the required dynamic adjustment capability for the spray movement mechanism 423 to adapt to changes in process parameters and material properties.

[0106] Specifically, the spray adjustment member 4232 can utilize a linear cylinder as its driving element. This provides precise and powerful drive, enabling accurate control of the distance between the spray nozzle 421 and the pressure roller assembly 200 during the spraying process. By adjusting the extension and contraction of the cylinder, the spray nozzle 421 can be quickly moved to the desired spraying position, ensuring even coverage of the cleaning liquid on the dust-free cloth surface for optimal cleaning results.

[0107] The use of linear cylinders not only improves operational flexibility but also enables rapid response to control system commands, enabling precise adjustment. For example, the cylinder's motion can be set to automatic control or manual adjustment, allowing operators to select the appropriate spray distance based on actual needs, thereby adapting to cleaning requirements under different working conditions.

[0108] Furthermore, the roller pressing device 10 also includes a scraper device 500. The scraper device 500 comprises a scraper 510, a scraper mounting frame 520, and a scraper dust collection chute 530. The scraper mounting frame 520 is fixedly connected to the frame 100, providing stable support and enabling the scraper 510 to be easily installed and removed. This design provides convenience for the operator, allowing for quick replacement or cleaning of the scraper 510 during the cleaning process, ensuring optimal cleaning results at all times.

[0109] The scraper 510's primary function is to scrape impurities from the surface of the roller assembly 200. During the rolling process, dirt, adhesions, and other impurities may accumulate on the roller surface, potentially impacting the quality of subsequent electrode sheets and product consistency. The scraper 510 quickly and effectively removes these impurities, keeping the roller clean and intact, thereby ensuring equipment production efficiency and final product quality.

[0110] The scraper dust collection trough 530 is located downstream of the scraper 510 and is primarily used to collect impurities removed by the scraper. The design of the dust collection trough 530 effectively concentrates and collects dirt generated on the roller surface, preventing it from spreading to other areas of the equipment during operation and causing contamination or wear. To further improve collection efficiency, the scraper dust collection trough 530 is connected to an external negative pressure system, allowing the negative pressure to quickly absorb scraped impurities during operation, thereby achieving efficient cleaning.

[0111] The design of connecting to external negative pressure allows the scraper suction trough 530 to quickly discharge collected dirt and impurities, reducing the frequency of manual cleaning, reducing the workload of operators, and improving overall work efficiency. This setting also ensures regular maintenance of the equipment and prevents the long-term accumulation of dirt from adversely affecting the scraper and pressure roller.

[0112] In a preferred embodiment, the number of adjustment devices 300 is set to multiple groups, of which at least two groups of adjustment devices 300 are arranged in parallel. This design is intended to enhance the driving stability and adjustment accuracy of the adjustment devices 300, ensuring that they can provide effective support and adjustment for the first pressing roller 210 and the second pressing roller 220 during the rolling process.

[0113] Specifically, two sets of adjustment devices 300 are spaced apart along the rotation axis of the pressure rollers, enabling multi-point support between the rollers. This multi-point support design allows for a more even pressure distribution on the rollers in practice, effectively reducing issues such as electrode thickness variations and surface roughness caused by localized pressure imbalances. The coordinated operation of multiple sets of adjustment devices 300 creates a more stable support system between the rollers, improving overall processing quality and production efficiency.

[0114] This parallel arrangement allows each group of regulating devices 300 to operate independently while simultaneously coordinating with each other, ensuring that the overall system can quickly adapt to changes in processing different materials and production conditions. If one group of regulating devices 300 malfunctions or requires maintenance, the other groups can continue to operate normally, avoiding overall equipment downtime and improving the reliability and flexibility of the production process.

[0115] In a preferred embodiment, two sets of dust-free cloth devices 400 and scraper devices 500 are provided, and these two sets of dust-free cloth devices 400 and scraper devices 500 are respectively configured one-to-one with the first pressure roller 210 and the second pressure roller 220. This design enables each pressure roller to be equipped with a dedicated cleaning system, which can effectively clean the first pressure roller 210 and the second pressure roller 220 in a targeted manner.

[0116] This layout design allows the first and second rollers 210 and 220 to remain clean during the rolling process, ensuring their surfaces are dust-free and free of impurities. This targeted cleaning significantly reduces quality issues caused by roller surface contamination during the electrode sheet rolling process, ensuring uniform electrode sheet thickness and surface smoothness, and improving the overall rolling quality of the rolling apparatus 10.

[0117] Specifically, the first set of dust-free cloth devices 400 and scraper devices 500 corresponds to the first pressure roller 210, while the second set of dust-free cloth devices 400 and scraper devices 500 cleans the second pressure roller 220. This dual-set configuration ensures that the equipment can flexibly respond to the cleaning needs of different pressure rollers during the production process, forming two independent cleaning paths, avoiding cross contamination and further improving product consistency and quality.

[0118] In addition, this design enhances the equipment's operational flexibility and maintenance convenience. The independent operation of each cleaning unit means that maintenance or replacement of dust-free cloths and scrapers will not affect the work of the other units, which can reduce downtime and achieve more efficient production.

[0119] The present invention also provides a pole piece processing system, which includes a pole piece processing device and a rolling device 10 in any of the above embodiments; the pole piece processing device is used to process the pole piece and can transport the pole piece toward the rolling device 10; the rolling device 10 is used to perform rolling operations on the pole piece.

[0120] In the electrode processing system of this embodiment, by effectively cooperating the rolling device 10 in any of the above embodiments with the electrode processing equipment, the overall quality of the electrode processing is significantly improved. The advanced design of the rolling device 10, including the cooperation of the adjustment device 300 and the moving component 230, greatly improves the accuracy and uniformity of the rolling process. Specifically, the moving component 230 drives the second pressure roller 220 to move to the first position first to ensure that it is in good contact with the contact member 320. Subsequently, by adjusting the drive of the drive component 330, the moving member 310 slides relative to the contact member 320, thereby converting the movement of the moving member 310 into a fine adjustment along the first direction. This method of using an inclined drive design not only improves the overall accuracy of rolling, but also solves the problem of insufficient control accuracy of traditional rolling in the prior art, thereby ensuring the efficiency and stability of the pressure roller in the electrode processing process.

[0121] The combination of the adjustment device 300 and the moving component 230 enables the rolling equipment 10 to effectively eliminate the unevenness of the electrode thickness, fundamentally improving the molding quality of the battery electrode. This ability to precisely control the rolling process greatly reduces the risk of reduced surface smoothness of the electrode, thereby improving the energy density and cycle life of the battery. In addition, the equipment of this embodiment also improves the contact quality between the active material and the conductive agent particles, significantly improving the conductivity and bonding strength of the battery, and reducing the cycle life reduction and safety hazards caused by powder loss. These technical advantages work together to effectively improve the overall processing quality of the electrode processing system.

[0122] In a preferred embodiment, when the rolling device 10 is used for secondary rolling, the processing quality of the electrode sheet can be further improved compared to traditional electrode sheet processing systems. The secondary rolling ensures further optimization of the electrode sheet based on the initial forming process, further improving its surface smoothness and thickness uniformity, and further enhancing the performance of the final battery electrode sheet.

[0123] In the description of the embodiments of the present application, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0124] In the description of the embodiments of this application, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of this application based on the specific circumstances.

[0125] In the embodiments of the present application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0126] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0127] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A rolling device, characterized in that: include: frame; A pressing roller device, comprising a first pressing roller, a second pressing roller and a moving assembly, wherein the first pressing roller is rotatably connected to the frame, the second pressing roller is spaced apart from the first pressing roller device and is used to press the electrode sheet, and the second pressing roller is movably connected to the frame via the moving assembly, and the moving assembly is used to drive the second pressing roller to move along a first direction toward or away from the second pressing roller; as well as An adjusting device is arranged between the first pressing roller and the second pressing roller; the adjusting device includes a moving part, a contact part and an adjusting drive assembly, the moving part is movably connected to the frame through the adjusting drive assembly, and the adjusting drive assembly is used to drive the moving part to move along a second direction set at an angle to the first direction, the contact part is connected to the pressing roller device and is used to contact the moving part; wherein, the moving part and / or the contact part is provided with an inclined surface, and the inclined surface is set at an angle to the second direction.

2. The rolling equipment according to claim 1, characterized in that The movable member is provided with a first inclined surface, the contact member is provided with a second inclined surface, the second inclined surface is arranged opposite to the first inclined surface and is used to slide relative to the first inclined surface; and / or the contact member is arranged between the first pressure roller and the movable member.

3. The rolling equipment according to claim 1, characterized in that The adjustment drive assembly includes an adjustment drive member and an adjustment moving mechanism. The adjustment drive member is arranged on the frame. The adjustment moving mechanism is transmission-connected to the adjustment drive member and the moving member and is used to drive the moving member to move along the second direction.

4. The rolling equipment according to claim 3, characterized in that The adjusting moving mechanism includes an adjusting screw and an adjusting slider. The adjusting screw is connected to the output end of the adjusting driving member and extends along the second direction. The adjusting driving member is used to drive the adjusting screw to rotate; the adjusting slider is transmission-connected to the adjusting screw and connected to the moving member.

5. The rolling equipment according to claim 1, characterized in that The moving assembly includes a moving drive, a moving frame and a pressure sensor. The moving frame is slidably connected to the frame, the moving drive is respectively connected to the frame, and the first pressure roller is rotatably connected to the moving frame. The pressure sensor is respectively connected to the output end of the moving drive and the moving frame.

6. The rolling device according to any one of claims 1 to 5, characterized in that: The rolling equipment also includes a dust-free cloth device, which includes a conveying component and a spraying component. The conveying component is used to convey the dust-free cloth, and the spraying component is used to spray the cleaning liquid toward the dust-free cloth. The conveying component and the spraying component are arranged on the side of the pressure roller device and correspond to the outer peripheral wall of the pressure roller device; the conveying component includes a unwinding mechanism and a rewinding mechanism, and the unwinding mechanism and the rewinding mechanism are respectively arranged on opposite sides of the spraying component.

7. The rolling device according to claim 6, characterized in that The dust-free cloth device further includes a cleaning assembly, the cleaning assembly including a water absorbing member, a water absorbing mounting frame, and a water absorbing pressing member, the water absorbing member being detachably connected to the water absorbing mounting frame, the water absorbing pressing member being respectively connected to the frame and the water absorbing mounting frame, and the water absorbing pressing member being used to drive the water absorbing member to adhere to the outer peripheral wall of the pressing roller device and to contact the outer peripheral wall of the pressing roller device; And / or the conveying assembly also includes a unwinding roller, which is arranged between the spraying assembly and the winding mechanism, and the unwinding roller is used to support the dust-free cloth; and / or the conveying assembly also includes a winding roller, which is arranged between the spraying assembly and the winding mechanism, and the winding roller is used to support the dust-free cloth.

8. The rolling device according to claim 6, characterized in that The spray assembly includes a spray nozzle, a spray roller, a spray fixing frame and a spray moving mechanism, the spray moving mechanism is connected to the frame, the spray nozzle and the spray roller are connected to the spray moving mechanism, and the spray moving mechanism is used to drive the spray nozzle and the spray roller to move toward or away from the pressure roller device, and the spray roller is used to support the dust-free cloth between the unwinding mechanism and the winding mechanism.

9. The rolling device according to any one of claims 1 to 5, characterized in that: The rolling equipment also includes a scraper device, which includes a scraper, a scraper mounting frame and a scraper dust suction groove, the scraper mounting frame is connected to the frame, the scraper is detachably connected to the scraper mounting frame, and the scraper is used to scrape impurities on the outer wall of the pressing roller device, and the scraper dust suction groove is arranged downstream of the scraper and is used to collect the impurities; and / or the number of the moving components is multiple groups, wherein at least two groups of the moving components are arranged at intervals; and / or the number of the adjusting devices is multiple groups, wherein at least two groups of the adjusting devices are arranged in parallel.

10. A pole piece processing system, characterized in that: include: Pole piece processing equipment, used for processing pole pieces; as well as The rolling equipment according to any one of claims 1 to 9, wherein the rolling equipment is used to perform a rolling operation on the pole piece.

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