Roller device and roll press for pole pieces

Abstract

The application discloses a roller cleaning device and a roller press for pole pieces, and relates to the field of battery production equipment. The roller cleaning device comprises a liquid adding mechanism, a wetting mechanism, a liquid scraping mechanism and a liquid receiving groove. The liquid adding mechanism is used for applying cleaning liquid to the roller pressing surface of the roller. The wetting mechanism comprises a water absorbing part, and is used for pressing the water absorbing part on the roller pressing surface. The water absorbing part is used for absorbing the cleaning liquid and wetting the material on the roller pressing surface. The liquid scraping mechanism comprises a liquid scraping part, which is used for scraping the liquid on the roller pressing surface. The liquid receiving groove is arranged below the liquid scraping part to receive the liquid scraped by the liquid scraping part. In the rotation direction of the roller, the liquid adding mechanism, the wetting mechanism and the liquid scraping mechanism are sequentially arranged from upstream to downstream. The roller cleaning device according to the embodiment of the application can efficiently remove the paste on the roller surface, and simultaneously ensure the cleanliness of the pole piece production environment and the effective control of the cost.

Description

Cleaning roller device and electrode roll press Technical Field

[0001] This invention relates to the field of battery manufacturing, and more particularly to a cleaning roller device and an electrode rolling mill. Background Technology

[0002] In the battery production process, electrode rolling is a critical step. During the rolling process, slurry easily adheres to the roller surface, which leads to slurry accumulation and more firmly adhering to the roller surface. This contaminates the new electrode in subsequent rolling processes, resulting in defects such as foil leakage and black spots, and in severe cases, it can damage the quality of the electrode.

[0003] To address this issue, some existing technologies attempt to solve it by using oil-impregnated nonwoven fabric to rub the rollers. However, this method faces the challenge of precisely controlling the amount of silicone oil used in practical applications. Insufficient silicone oil significantly reduces the cleaning effect of the nonwoven fabric, failing to effectively remove adhesive material from the roller surface; while excessive silicone oil may contaminate the roller surface, causing silicone oil to adhere to the electrode sheets, resulting in similar quality problems. Furthermore, continuous use of this method consumes a large amount of silicone oil and nonwoven fabric resources, increasing the production cost of battery electrodes and hindering improvements in production efficiency and economic benefits.

[0004] Therefore, there is room for improvement in the cleaning equipment for the roller surface. Summary of the Invention

[0005] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, the first aspect of the present invention aims to provide a roller cleaning device that can efficiently remove slurry from the roller surface while ensuring a clean electrode production environment and effective cost control.

[0006] The second aspect of this invention is to provide a roller press for electrode sheets.

[0007] According to a first aspect of the present invention, a cleaning roller device includes a liquid adding mechanism, a wetting mechanism, a scraping mechanism, and a liquid receiving tank. The liquid adding mechanism is used to apply cleaning liquid to the roller pressing surface of the roller; the wetting mechanism includes a water-absorbing element, which is used to press the water-absorbing element onto the roller pressing surface, and the water-absorbing element is used to absorb the cleaning liquid and wet the material on the roller pressing surface; the scraping mechanism includes a scraping element, which is used to scrape off the liquid on the roller pressing surface; the liquid receiving tank is disposed below the scraping element to collect the liquid scraped off by the scraping element; wherein, in the rotation direction of the roller, the liquid adding mechanism, the wetting mechanism, and the scraping mechanism are arranged sequentially from upstream to downstream.

[0008] According to an embodiment of the present invention, the cleaning roller device ensures that an appropriate amount of cleaning liquid covers the roller surface by providing a liquid addition mechanism. The wetting mechanism promotes sufficient contact and penetration between the cleaning liquid and the roller surface, which helps to break down dirt on the roller surface. Finally, the scraping mechanism removes dirt and excess cleaning liquid from the roller surface, ensuring thorough cleaning of the roller surface.

[0009] In this application, the oil stains are first moistened by adding liquid to the roller surface, and then a water-absorbing component is pressed onto the roller surface. The water-absorbing component itself can absorb the cleaning liquid on the roller surface, making it more absorbent and allowing it to better adhere to the roller surface. This facilitates a more even distribution of the cleaning liquid on the roller surface and absorbs excess cleaning liquid. In areas where the liquid addition is insufficient, the water-absorbing component can apply excess cleaning liquid to the roller surface, thereby improving the sufficiency and uniformity of liquid distribution and reducing waste. Furthermore, the pressing action of the water-absorbing component helps to remove stubborn stains on the roller surface or forces the cleaning liquid to penetrate into stubborn stains, allowing the subsequent scraping component to scrape the roller surface more thoroughly. The scraped cleaning liquid is collected in a receiving tank, reducing wastewater pollution.

[0010] According to some embodiments of the present invention, the cleaning roller device further includes: a drying device for drying the roller pressing surface, wherein the output end of the drying device is located downstream of the scraping mechanism in the rotation direction of the roller.

[0011] According to some embodiments of the present invention, the drying device includes: an air knife adapted to discharge air toward the roller pressing surface; and a fan connected to the air knife to deliver gas.

[0012] According to some embodiments of the present invention, the drying apparatus further includes a heater disposed between the air knife and the blower.

[0013] According to some embodiments of the cleaning roller device of the present invention, there are at least two scrapers, which are adapted to be arranged at intervals along the circumference of the roller; there is one liquid receiving groove, which is located below all the scrapers.

[0014] According to some embodiments of the cleaning roller device of the present invention, the scraping mechanism further includes: a blade holder; a blade shaft rotatably connected to the blade holder, the scraping element disposed on the blade shaft, the blade shaft being rotatable between a first angle and a second angle, the blade shaft being configured such that the distance between the scraping element and the roller pressing surface decreases when rotating towards the first angle; and a positioning fastener movably disposed on the blade holder, the positioning fastener fixing the angle of the blade shaft when cooperating with the blade shaft.

[0015] In some optional embodiments, the scraping mechanism further includes an elastic element, the two ends of which are respectively connected to the blade holder and the blade shaft, so as to pull the blade shaft to the second angle.

[0016] In some alternative embodiments, the elastic element is a coil spring disposed within the tool holder, the end of the tool shaft is located within the tool holder, and the inner end of the coil spring is connected to the tool shaft.

[0017] In some optional embodiments, the outer peripheral surface of the cutter shaft is provided with a deflecting portion; the scraping mechanism further includes: a pusher, one end of which abuts against the deflecting portion, the pusher being adapted to be disposed on the side of the deflecting portion away from the roller pressing surface; the pusher is movably disposed on the cutter holder, and pushes the cutter shaft to rotate at the first angle when moving toward the roller pressing surface.

[0018] According to some embodiments of the present invention, the cleaning roller device includes: a pressing member, at least a portion of which is disposed on the side of the pressing member facing the roller pressing surface; and a driving member, the output end of which is connected to the pressing member, the driving member driving the pressing member to move closer to and away from the roller pressing surface.

[0019] In some alternative embodiments, the pressing member includes a pressing plate, and the plate surface of the pressing plate facing the roller pressing surface forms an arcuate surface that conforms to the shape of the roller pressing surface.

[0020] In some optional embodiments, the pressing element includes: a pressing plate and a hanging shaft, wherein the hanging shaft is located upstream of the pressing plate in the rotation direction of the roller; the absorbent element is a cloth sheet, the cloth sheet is hung on the hanging shaft, and the portion of the cloth sheet located on both sides of the hanging shaft is located on the side of the pressing plate facing the roller pressing surface.

[0021] According to some embodiments of the present invention, the cloth pressing plate is rotatably connected to the output end of the drive member; and the rotation axis of the cloth pressing plate is located at the end of the cloth pressing plate away from the hanging shaft.

[0022] According to some embodiments of the present invention, the cleaning roller device has a nozzle for spraying water onto the roller surface, and the cleaning liquid is deionized water.

[0023] In some alternative embodiments, there are multiple nozzles, which are spaced apart along the axial direction of the roller.

[0024] According to some embodiments of the present invention, the cleaning roller device further includes: a linear motion mechanism, the linear motion mechanism including a slider that slides along the axial direction of the roller; a nozzle mounted on the slider; and a water pump connected to the nozzle via a water pipe.

[0025] According to some embodiments of the present invention, the cleaning roller device further includes a liquid adding mechanism: a drag chain, one end of which is connected to the linear motion mechanism and the other end of which is connected to the nozzle, and a portion of the water pipe is disposed on the drag chain.

[0026] According to a second aspect of the present invention, a roller press for an electrode sheet includes: two rollers arranged in parallel and spaced apart and rotating in opposite directions, the gap between the two rollers being used for the passage of an electrode sheet; at least one cleaning roller device, the cleaning roller device being the cleaning roller device according to a first aspect of the present invention, each cleaning roller device being arranged corresponding to the rolling surface of one of the rollers.

[0027] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0028] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0029] Figure 1 is a schematic diagram of the cleaning roller device according to some embodiments of the present invention;

[0030] Figure 2 is a schematic diagram of the liquid addition mechanism according to some embodiments of the present invention;

[0031] Figure 3 is a schematic diagram of the wettation mechanism according to some embodiments of the present invention;

[0032] Figure 4 is a side view of the pressing component according to some embodiments of the present invention;

[0033] Figure 5 is a schematic diagram of the scraping mechanism according to some embodiments of the present invention;

[0034] Figure 6 is a side view of the scraping mechanism of some embodiments of the present invention;

[0035] Figure 7 is a schematic diagram of the structure of a drying apparatus according to some embodiments of the present invention;

[0036] Figure 8 is a schematic diagram of the structure of a roller press according to some embodiments of the present invention.

[0037] Figure label:

[0038] Roller press 100

[0039] Roller 10, frame 20, electrode 30

[0040] Cleaning roller device 40

[0041] Liquid addition mechanism 50, nozzle 51, linear motion mechanism 52, cable chain 53, water pump 54, water pipe 55, water tank 56, wetting mechanism 60, water suction component 61, cloth pressing component 62, cloth pressing plate 621, rotating shaft 6211, hanging shaft 622, drive component 63, output end 631.

[0042] Scraping mechanism 70, scraping component 71, blade holder 72, blade shaft 73, actuating part 731, elastic element 74, positioning fastener 75, pushing component 76.

[0043] Drying device 80, air knife 81, fan 82, heater 83

[0044] Liquid receiving tank 90. Detailed Implementation

[0045] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0046] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention 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 the invention. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0047] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0048] The cleaning roller apparatus 40 according to a first aspect of the present invention will now be described with reference to Figures 1-7.

[0049] It is worth noting that the application of the cleaning roller device 40 is not limited to the production of electrode sheets 30. It can also be widely used in various industries that require roller surface cleaning, such as papermaking, printing, plastic film processing and metal sheet rolling, effectively improving the roller surface cleaning effect and enhancing product quality and production efficiency.

[0050] As shown in Figure 1, the cleaning roller device 40 according to an embodiment of the present invention includes: a liquid adding mechanism 50, a wetting mechanism 60, a scraping mechanism 70, and a liquid receiving tank 90.

[0051] The liquid dispensing mechanism 50 is used to apply cleaning liquid to the roller pressing surface of the roller 10. The method by which the liquid dispensing mechanism 50 applies the cleaning liquid to the roller pressing surface is not limited; the liquid dispensing mechanism 50 can spray the cleaning liquid onto the roller pressing surface, or it can pour the cleaning liquid onto the roller pressing surface. The following description uses the example of the liquid dispensing mechanism 50 spraying cleaning liquid onto the roller pressing surface.

[0052] Referring to Figures 1 and 2, the liquid addition mechanism 50 serves as the starting point of the cleaning process, providing cleaning fluid to the cleaning roller device 40. When the roller 10 begins to rotate, the liquid addition mechanism 50 evenly sprays an appropriate amount of cleaning fluid onto the roller pressing surface of the roller 10. This cleaning fluid not only effectively softens and loosens the material adhering to the roller surface but also provides the necessary moist environment for subsequent cleaning steps.

[0053] Optionally, the liquid application mechanism 50 also includes one or more of a nozzle, a drip nozzle, and a brush. The cleaning liquid is applied to the surface of the roller 10 through the nozzle, the drip nozzle, or the brush.

[0054] The liquid dispensing mechanism 50 also includes a liquid flow controller for adjusting the liquid flow rate and / or a speed controller for adjusting the liquid flow velocity. This enables the liquid dispensing mechanism 50 to automatically adjust the liquid dispensing amount and dispensing speed according to the set flow rate and flow velocity, thereby improving the automation level of the cleaning roller device 40.

[0055] As shown in Figures 1 and 3, the wetting mechanism 60 includes a water-absorbing component 61. The wetting mechanism 60 is used to press the water-absorbing component 61 onto the roller pressing surface. The water-absorbing component 61 is used to absorb the cleaning liquid and wet the material on the roller pressing surface.

[0056] The wetting mechanism 60 includes a water-absorbing element 61, which is used to thoroughly clean the roller surface. The water-absorbing element 61 is gently pressed onto the roller surface, and its moisture-absorbing capacity quickly absorbs and wets the cleaning liquid and adhering materials on the roller surface. This step not only further softens the adhering materials, but also makes the subsequent scraping operation smoother.

[0057] Optionally, the absorbent 61 can be made of non-woven fabric or other materials that are absorbent, breathable, and soft. When the absorbent 61 is made of non-woven fabric, the porous structure of the non-woven fabric can quickly absorb and evenly distribute the cleaning liquid, effectively wetting the material on the roller surface and laying a good foundation for subsequent scraping operations.

[0058] Besides non-woven fabrics, other materials with absorbency, breathability, and softness can also be used as absorbent components 61. For example, fabrics made of polyester staple fibers. This type of polyester staple fiber fabric has a three-dimensional structure, which is conducive to the rapid absorption and locking of moisture; or absorbent component 61 can be made of microfiber. Because microfiber fibers are extremely fine, they can reduce the stiffness of the fibers, making the fabric softer and more absorbent. It is less likely to produce lint during wiping, and it has a strong ability to absorb cleaning liquid, making it easy to remove stains and wash; or, absorbent component 61 can be an absorbent sponge.

[0059] In some alternative embodiments, the absorbent element 61 is multi-layered. By making the absorbent element 61 multi-layered, not only is its absorbency enhanced, but its overall durability and adaptability are also improved.

[0060] In some embodiments, the materials of each layer of the absorbent element 61 can be optimized according to their required functions. For example, the surface absorbent layer may be made of highly absorbent, soft, and skin-friendly materials, such as microfiber or specially treated natural fibers, to ensure good contact with the roller surface and rapid water absorption. The intermediate water-locking layer may be made of highly absorbent resin or a fiber layer with a special woven structure to effectively lock in moisture and prevent its penetration. The bottom support layer focuses more on abrasion resistance, stability, and durability, and may be made of materials such as polyester fibers or reinforced mesh fabric.

[0061] Alternatively, in some embodiments, the thickness and density of each layer of the multi-layer absorbent 61 can be adjusted as needed. For example, increasing the thickness of the surface absorbent layer can improve its absorbency; while adjusting the density of the intermediate water-locking layer helps to better control the diffusion and locking of moisture. This flexibility allows the multi-layer absorbent 61 to adapt to the cleaning needs of different roller surfaces and reduce waste while ensuring cleaning effectiveness.

[0062] To improve the efficiency and convenience of the absorbent element 61, in some embodiments, the absorbent element 61 is configured as a replaceable structure. That is, when the surface absorbent layer loses its absorbency due to prolonged use, the absorbent element 61 can be replaced. This design ensures effective cleaning of the roller 10.

[0063] As shown in Figures 1 and 5-6, the scraping mechanism 70 includes a scraper 71, which is used to scrape off the liquid on the roller surface. Optionally, the scraper 71 can be a scraper or a brush, and the material of the scraper 71 is not limited.

[0064] The scraper 71 is tilted at a certain angle so that it can closely adhere to the roller surface and slide as the roller 10 rotates. This tilt angle can be adjusted according to factors such as the material of the roller surface, the nature of the liquid, and the scraping requirements. Too small an angle may result in incomplete scraping, while too large an angle may increase the friction between the scraper 71 and the roller surface, accelerating wear.

[0065] Referring to Figure 1, the liquid receiving tank 90 is located below the scraper 71 to collect the liquid scraped off by the scraper 71.

[0066] The shape and length of the drip tray 90 are adapted to match the working range of the scraper 71. The width of the drip tray 90 is suitable to ensure that all liquid scraped by the scraper 71 is contained without overflow. Optionally, the drip tray 90 is a rectangular container. The capacity of the drip tray 90 is suitable to hold all liquid scraped by the scraper 71.

[0067] In some optional embodiments, the liquid receiving tank 90 has a flow guide hole at its lower part, which connects the interior of the liquid receiving tank 90 to the exterior. The flow guide hole is used to safely and orderly guide the liquid accumulated in the liquid receiving tank 90 to an external processing system or container, thereby preventing liquid spillage and keeping the liquid receiving tank 90 and its surrounding environment dry and clean.

[0068] In the direction of rotation of roller 10, as shown in Figure 1, liquid addition mechanism 50, wetting mechanism 60 and scraping mechanism 70 are arranged sequentially from upstream to downstream.

[0069] This setup enables sequential processing between mechanisms. Each mechanism undertakes a specific task to ensure that the surface of roller 10 is cleaned evenly and effectively.

[0070] First, the liquid addition mechanism 50 is located at the very upstream end of the entire process, i.e., the starting point of cleaning. The liquid addition mechanism 50 is responsible for quantitatively and uniformly adding the required liquid, such as water or detergent, to the surface of the roller 10.

[0071] Then, the wetting mechanism 60 is located in the middle of the processing flow. The wetting mechanism 60 ensures that the liquid on the absorbent 61 can fully wet the material on the roller surface.

[0072] Finally, the scraping mechanism 70 is located downstream of the entire processing flow. It is used to remove excess liquid from the surface of the roller 10.

[0073] Through the collaborative efforts of the aforementioned multiple mechanisms in the roller 10 cleaning process, the surface of roller 10 is ensured to be thoroughly and effectively treated, while excess cleaning fluid is removed from the surface of roller 10, thereby achieving the removal of dirt and cleaning fluid from the surface of roller 10.

[0074] As shown in FIG8, the cleaning roller device 40 according to some embodiments of the present invention further includes: a drying device 80, which is used to dry the roller pressing surface. In the rotation direction of the roller 10, the output end of the drying device 80 is located downstream of the scraping mechanism 70.

[0075] By incorporating a drying device 80, the integrity and efficiency of the roller 10 cleaning process are further enhanced. The main function of the drying device 80 is to dry the roller surface after it has been processed by the scraping mechanism 70, ensuring that there is no residual moisture or cleaning solution on the surface of the roller 10.

[0076] In the rotation direction of the roller 10, the drying device 80 is positioned downstream of the scraping mechanism 70. This means that after the surface of the roller 10 has been effectively treated by the scraping mechanism 70, it immediately enters the working area of ​​the drying device 80. The output end of the drying device 80 is directly aligned with and covers the rotation path of the roller 10, ensuring that the surface of the roller 10 can be dried evenly and quickly.

[0077] In some optional embodiments, the drying device 80 includes, but is not limited to, devices that can effectively remove moisture from the surface of the roller 10 and achieve rapid drying, such as hot air drying, hot air circulation, infrared radiation heating, and vacuum drying.

[0078] Optionally, the drying device 80 includes an air knife 81 and a fan 82, the air knife 81 being adapted to discharge air toward the rolling surface. The fan 82 is connected to the air knife 81 to deliver gas.

[0079] It is known that the air knife 81 is an air knife, whose unique shape and structure enable it to generate high-speed, uniform and flat airflow.

[0080] This airflow characteristic is suitable for drying the roller surface because it can adhere closely to the surface of the roller 10. Furthermore, the air knife 81 can cover the entire width of the roller 10, thereby ensuring that every corner of the roller 10 surface is fully dried.

[0081] Optionally, the air outlet direction of the air knife 81 is opposite to the movement direction of the roller pressing surface. This can improve drying efficiency.

[0082] The blower 82, as the power source for the air knife 81, is responsible for drawing in air, pressurizing it, and then delivering it to the air knife 81. Optionally, the blower 82's wind speed, air volume, and air pressure parameters can be adjusted according to requirements to meet the needs of different production environments.

[0083] Specifically, when the air knife 81 and the fan 82 work together, the fan 82 delivers pressurized gas to the air knife 81, which then blows this gas onto the roller surface in a high-speed, uniform airflow. When the airflow comes into contact with the surface of the roller 10, it carries away the moisture and residual cleaning liquid, thereby achieving rapid drying of the roller surface.

[0084] According to some embodiments of the present invention, the cleaning roller device 40 and the drying device 80 further include a heater 83 disposed between the air knife 81 and the blower 82.

[0085] This configuration allows the blower 82 to draw in air and first deliver it to the heater 83, where the heater 83 uses electric heating, gas heating, or other heating methods to rapidly raise the air temperature. The heated gas then enters the air knife 81 and is blown onto the roll face in the form of a high-speed, high-temperature airflow through the nozzle of the air knife 81.

[0086] When this high-temperature airflow comes into contact with the surface of roller 10, it not only quickly removes moisture and residual cleaning fluid, but also raises the surface temperature of roller 10 to a certain level through heat conduction and convection, thereby accelerating the evaporation process. Compared to unheated drying airflow, high-temperature airflow has stronger drying capacity and faster drying speed, and can more thoroughly remove moisture and residues from the surface of roller 10.

[0087] Optionally, the heater 83 also includes a temperature control device. The temperature control device ensures that the temperature inside the heater 83 is always kept within a set range, thereby achieving precise control of the temperature of the drying airflow, which in turn ensures that the roller surface is thoroughly dried, and also avoids adverse effects on the surface of the roller 10 caused by excessively high or low temperatures, such as deformation, cracking, or residual moisture.

[0088] According to some embodiments of the present invention, the cleaning roller device 40, referring to FIG. 1, has at least two scraper elements 71, which are adapted to be arranged at intervals along the circumference of the roller 10. There is one liquid receiving trough 90, located below all the scraper elements 71.

[0089] Multiple wipers 71 can scrape the surface of the roller 10 from different angles and positions, thereby more effectively removing residues or cleaning fluid adhering to the roller 10. By being arranged at intervals along the circumference of the roller 10, each wiper 71 can contact the surface of the roller 10 to achieve cleaning and avoid omissions.

[0090] In some optional embodiments, there are two wipers 71; in the rotation direction of the roller 10, the upstream wiper 71 is a hard wiper 71, and the downstream wiper 71 is a soft wiper 71. This combination of wipers 71 made of different materials can effectively remove different types of residues from the surface of the roller 10.

[0091] Specifically, the scraper 71 located upstream in the rotation direction of roller 10 is a hard scraper 71. This hard scraper 71 is made of a hard material. For example, the hard scraper 71 can be stainless steel, hard alloy, etc. It has high hardness and wear resistance. The main function of the hard scraper 71 is to scrape off stubborn and hard residues on the roller surface. Since these stains are often difficult to remove by simple washing or wiping, the hard scraper 71 needs to provide sufficient scraping force and wear resistance to ensure cleaning effect.

[0092] The scraper 71 located downstream of the roller 10 in the direction of rotation is a soft scraper 71. This soft scraper 71 is made of a soft material. For example, the soft scraper 71 can be made of rubber, silicone, etc. The main function of this soft scraper 71 is to scrape away moisture and residual light stains on the roller surface. Because the soft scraper 71 has good flexibility and conformability, it can better adapt to the shape and changes of the roller 10 surface, thereby ensuring the uniformity and consistency of the scraping effect.

[0093] As shown in Figures 5-6, the cleaning roller device 40 according to some embodiments of the present invention includes a scraping mechanism 70 further comprising: a blade holder 72, a blade shaft 73, and a positioning fastener 75. The blade shaft 73 is rotatably connected to the blade holder 72, and a scraper 71 is disposed on the blade shaft 73. The blade shaft 73 is rotatable between a first angle and a second angle. The blade shaft 73 is configured such that the distance between the scraper 71 and the roller pressing surface decreases when rotating towards the first angle. The positioning fastener 75 is movably disposed on the blade holder 72, and when the positioning fastener 75 cooperates with the blade shaft 73, it fixes the angle of the blade shaft 73.

[0094] The blade holder 72 serves as the basic support structure for the scraping mechanism 70, and is securely mounted on the cleaning roller device 40, providing a base for the rotation of the blade shaft 73. Referring to Figure 5, there are two blade holders 72, spaced apart along both ends of the scraping member 71. The two ends of the blade shaft 73 are respectively located at the two blade holders 72.

[0095] The cutter shaft 73 is rotatably connected to the cutter holder 72, and the cutter shaft 73 can be adjusted within a certain range of angles around its axis. The scraper 71 is fixedly mounted on the cutter shaft 73 and moves as the cutter shaft 73 rotates. The cutter shaft 73 can rotate freely between a first angle and a second angle, which correspond to different distances between the scraper 71 and the roller surface, respectively.

[0096] When the cutter shaft 73 rotates to the first angle, the distance between the scraper 71 and the roller surface gradually decreases until the optimal cleaning position is reached. At this time, the scraper 71 can closely adhere to the roller surface, effectively removing surface residues. When the cutter shaft 73 rotates to the second angle, the scraper 71 gradually moves away from the roller surface, making room for subsequent maintenance or replacement work.

[0097] The angle of the cutter shaft 73 can be adjusted manually by the operator or by rotating the elastic element 74.

[0098] The scraping mechanism 70 also includes a positioning fastener 75. This positioning fastener 75 is movably mounted on the cutter holder 72 and is used to fix the position of the cutter shaft 73 at a specific angle. For example, when the cutter shaft 73 rotates to a first angle, by adjusting the engagement between the positioning fastener 75 and the cutter shaft 73, the angle of the cutter shaft 73 can be securely locked to prevent accidental rotation during operation.

[0099] In some optional embodiments, the cutter shaft 73 is provided with a cutter groove extending axially along the cutter shaft 73. The cutter groove is used to mount the scraper 71. Therefore, the shape and size of the cutter groove are adapted to the scraper 71 to ensure that the scraper 71 can be securely mounted on the cutter shaft 73. At least a portion of the scraper 71 is embedded in the cutter groove, while another portion extends toward the roller surface, allowing the scraper 71 to contact the roller surface for effective cleaning. Optionally, the cutter groove and the scraper 71 are interference-fitted.

[0100] In some optional embodiments, referring to FIG6, the scraping mechanism 70 further includes an elastic element 74, the two ends of which are respectively connected to the blade holder 72 and the blade shaft 73, so as to pull the blade shaft 73 to the second angle.

[0101] The elastic element 74 is used to connect the tool holder 72 and the tool shaft 73. The elastic element 74 also provides the tool shaft 73 with an automatic reset function. Specifically, the two ends of the elastic element 74 are connected to the tool shaft 73 and the tool holder 72 respectively, forming an elastic connection mechanism.

[0102] When the positioning fastener 75 is loosened, the elastic element 74 uses its own elastic force to pull the cutter shaft 73 in the second angle direction. During this process, the cutter shaft 73 gradually moves away from the roller surface, and a spacious maintenance space is formed between the scraper 71 and the roller surface.

[0103] With the automatic reset of the elastic element 74, the operator can easily obtain enough space to maintain or replace the scraper 71 without manually adjusting the position of the cutter shaft 73, thus improving the automation level of the cleaning roller device 40.

[0104] In some alternative embodiments, the elastic element 74 is a coil spring disposed within the tool holder 72, the end of the tool shaft 73 is located within the tool holder 72, and the inner end of the coil spring is connected to the tool shaft 73.

[0105] The coil spring utilizes the internal space of the tool holder 72 and is housed within it, ensuring both the compactness of the overall structure after installation and preventing interference from the external environment. The axial direction of the coil spring is parallel to the axial direction of the tool shaft 73, and the spring force can drive the tool shaft 73 to twist. Specifically, when the coil spring is in a stored state, its elastic force accumulates along the axial direction; when it is necessary to reset the tool shaft 73, this elastic force is converted into the power to push or pull the tool shaft 73 to twist, enabling the tool shaft 73 to move smoothly along the preset trajectory.

[0106] In some embodiments shown in FIG6, the outer peripheral surface of the cutter shaft 73 is provided with a actuating portion 731. The scraping mechanism 70 further includes a pusher 76, one end of which abuts against the actuating portion 731. The pusher 76 is adapted to be disposed on the side of the actuating portion 731 away from the roller pressing surface. The pusher 76 is movably disposed on the cutter holder 72 and pushes the cutter shaft 73 to rotate to a first angle when moving toward the roller pressing surface.

[0107] The actuating part 731 is used to interact with the pusher 76. The shape and position of the actuating part 731 are adapted to make accurate and stable contact with the pusher 76.

[0108] One end of the pusher 76 directly abuts against the actuating part 731 of the cutter shaft 73. The other end or main body of the pusher 76 is mounted on the cutter holder 72, allowing it to move within a certain range. The pusher 76 is positioned on the side of the actuating part 731 away from the roller surface to ensure that it does not directly interfere with the normal working clearance between the cutter shaft 73 and the roller surface when pushing the cutter shaft 73 to rotate.

[0109] When the angle of the cutter shaft 73 needs to be adjusted, the pusher 76 begins to function. The pusher 76 is driven by external force (such as manual, pneumatic, or electric) to move towards the roller surface. As the pusher 76 pushes, the force it exerts against the actuating part 731 is converted into a torque that causes the cutter shaft 73 to rotate about its axis. This torque causes the cutter shaft 73 to rotate along a preset trajectory (typically towards a first angle direction, i.e., closer to or further away from the roller surface).

[0110] Therefore, by providing a toggle part 731 on the cutter shaft 73 and combining it with the pusher 76, the scraping mechanism 70 achieves flexible adjustment of the angle of the cutter shaft 73, thereby improving the adaptability and efficiency of the scraping operation.

[0111] According to some embodiments of the present invention, the cleaning roller device 40, as shown in Figures 3-4, includes a wetting mechanism 60 comprising a pressing member 62 and a driving member 63. At least a portion of the water-absorbing member 61 is disposed on the side of the pressing member 62 facing the roller pressing surface. The output end 631 of the driving member 63 is connected to the pressing member 62, and the driving member 63 drives the pressing member 62 to move closer to and away from the roller pressing surface.

[0112] The absorbent element 61 is disposed on the side of the pressing element 62 facing the roller pressing surface. When the pressing element 62 is close to the roller pressing surface, the absorbent element 61 can directly adhere to the roller surface and absorb the cleaning liquid and other substances on the roller surface using its own water absorption properties.

[0113] The drive unit 63 serves as the power source for the wetting mechanism 60, and its output end 631 is tightly connected to the pressing unit 62. The drive unit 63 can drive the pressing unit 62 toward or away from the roller pressing surface. This dynamic adjustment capability ensures that the contact pressure between the pressing unit 62 and the roller pressing surface is optimal at different cleaning stages.

[0114] When the driving component 63 drives the pressing component 62 closer to the roller surface, the absorbent component 61 presses against the roller surface, increasing the contact pressure with the roller surface. Due to the pressure applied by the pressing component 62, the frictional pressure between the absorbent component 61 and the roller surface is also increased, which helps to clean stubborn stains and residues on the roller surface more thoroughly.

[0115] The wetting mechanism 60 not only achieves effective wetting and preliminary cleaning of the roller pressing surface, but also improves the cleaning effect of the cleaning roller device 40 by increasing the friction pressure. By shortening the cleaning cycle, it improves the continuous, efficient and stable operation of the production line.

[0116] In some alternative embodiments, the pressing member 62 includes a pressing plate 621, and the plate surface of the pressing plate 621 facing the roller pressing surface forms an arcuate surface that conforms to the shape of the roller pressing surface.

[0117] Since the roller pressing surface is cylindrical, its surface is curved. Constructing the surface of the pressing plate 621 to be curved ensures that the contact area between the pressing part 62 and the roller pressing surface is maximized when they come into contact, while reducing gaps or voids caused by shape mismatch.

[0118] When the absorbent component 61 is made of a flexible material, it is often difficult to fully conform to the curved shape of the roller surface without external force. Especially when the roller surface is rotating, the flexible absorbent component 61 may reduce its cleaning effect due to insufficient tightness. When the pressure plate 621 is in close contact with the roller surface, its curved surface adapts to the shape of the roller surface, providing a stable and well-fitting support platform for the absorbent component 61. The absorbent component 61 adheres to the curved surface of the pressure plate 621, ensuring that it maintains close contact with the roller surface even when the roller 10 is rotating. Thus, even though the absorbent component 61 itself has a certain degree of flexibility, it can achieve efficient adhesion and cleaning of the roller surface with the assistance of the pressure plate 621.

[0119] In the above technical solution, on the one hand, the arc-shaped surface design ensures the maximum contact area between the absorbent component 61 and the roller pressing surface, thereby improving cleaning efficiency; on the other hand, the stable support of the pressure plate 621 reduces the vibration and displacement of the absorbent component 61 during the cleaning process, ensuring the stability and consistency of cleaning quality. Furthermore, because the absorbent component 61 can fit more closely to the roller pressing surface, it can more effectively absorb and remove residues from the roller surface, further enhancing the cleaning effect.

[0120] In some optional embodiments, referring to FIG4, the pressing element 62 includes a pressing plate 621 and a hanging shaft 622, with the hanging shaft 622 located upstream of the pressing plate 621 in the rotation direction of the roller 10. The absorbent element 61 is a cloth sheet, which is hung on the hanging shaft 622, and the portions of the cloth sheet located on both sides of the hanging shaft 622 are located on the side of the pressing plate 621 facing the roller pressing surface.

[0121] In the above technical solution, the absorbent element 61 takes the form of a cloth sheet, which is suspended on a hanging shaft 622. The hanging shaft 622 is positioned upstream in the rotation direction of the roller 10, so that the cloth sheet is already in a ready state before entering the roller pressing area. The cloth sheet hangs down from the hanging shaft 622, and its length and width are suitable to be equal to or slightly larger than the size of the pressure plate 621, to ensure that the hanging part can pass exactly through the pressure plate 621 and adhere tightly to the roller pressing surface.

[0122] This suspension method facilitates replacement and prevents the fabric from easily falling off. Specifically, since the fabric is hung on the hanging shaft 622, when the fabric needs to be replaced or cleaned, the operator can easily remove it from the hanging shaft 622 and replace it with a new fabric without a complicated disassembly process, thus improving maintenance efficiency.

[0123] Meanwhile, the pressure plate 621 serves to fix the fabric sheet between the fabric sheet and the roller surface. When the fabric sheet hangs down and contacts the roller surface, the pressure plate 621 presses it firmly against the roller surface, ensuring a tight fit between the fabric sheet and the roller surface. This design not only improves the cleaning effect but also prevents the fabric sheet from falling off due to compression or vibration during the roller pressing process. Even on the high-speed roller press 100, the fabric sheet remains stable, ensuring the continuity and reliability of the cleaning operation.

[0124] According to some embodiments of the present invention, in the cleaning roller device 40, the pressure plate 621 is rotatably connected to the output end 631 of the drive member 63; and the rotation shaft 6211 of the pressure plate 621 is located at the end of the pressure plate 621 away from the hanging shaft 622.

[0125] When the drive unit 63 is activated, its output end 631 extends and pushes the pressure plate 621, allowing the pressure plate 621 to rotate along the rotation shaft 6211 toward the roller pressing surface, thereby causing the fabric sheet on the hanging shaft 622 to be tightly pressed against the roller pressing surface. This pressing mechanism ensures the stability and reliability of the fabric sheet during the processing.

[0126] When the output end 631 of the drive component 63 shortens, it releases the pressure on the pressure plate 621, allowing the pressure plate 621 to rotate freely outward. In this way, when it is not necessary to press the fabric, the pressure plate 621 can move away from the roller surface, releasing the fabric. The operator can easily remove the fabric from the hanging shaft 622, greatly improving the convenience and efficiency of operation.

[0127] According to some embodiments of the present invention, the cleaning roller device 40 has a liquid adding mechanism 50 having a nozzle 51 for spraying water onto the roller pressing surface, and the cleaning liquid is deionized water.

[0128] It is worth noting that deionized water, by removing ions and most organic matter from the water, has high purity and low surface tension. This allows it to penetrate more effectively into the tiny gaps and contaminants on the roller surface, thoroughly removing impurities such as grease and dust, and helping to maintain the smoothness of the roller surface.

[0129] Meanwhile, deionized water leaves no harmful residues during the cleaning process and does not corrode or damage the materials of the rolling surface (such as steel and rubber). This ensures the long-term stability and service life of the rolling surface, while avoiding adverse effects on subsequent electrode rolling processes caused by cleaning agent residue.

[0130] In addition, deionized water, as a cleaning solution, reduces the emission of harmful substances, lowers environmental pollution, and aligns with the environmental protection principles of modern industry.

[0131] In some embodiments not shown in the figures, there are multiple nozzles 51, which are spaced apart along the axial direction of the roller 10.

[0132] By arranging multiple nozzles 51 at intervals in the axial direction of the roller 10, it can be ensured that the cleaning fluid (such as deionized water) can be sprayed evenly on the axial direction of the roller surface, thus ensuring the consistency of spraying. This consistency helps to reduce cleaning blind spots or overlapping areas caused by uneven spraying, thereby improving the efficiency and quality of roller cleaning.

[0133] As shown in FIG2, the cleaning roller device 40 according to some embodiments of the present invention includes a liquid adding mechanism 50 further comprising: a linear motion mechanism 52, a nozzle 51, and a water pump 54. The linear motion mechanism 52 includes a slider that slides along the axial direction of the roller 10. The nozzle 51 is mounted on the slider. The water pump 54 is connected to the nozzle 51 via a water pipe 55.

[0134] In the above technical solution, the slider slides freely along a preset track or guide rail in the axial direction of the roller 10. This design prevents excessive vibration or deviation during sliding. Optionally, the slider's sliding can be driven by various methods such as electric, pneumatic, or hydraulic power. The drive system controls the spraying position of the cleaning fluid in the axial direction of the roller 10 by controlling the slider's moving speed and acceleration.

[0135] The nozzle 51 is mounted on the slider and moves with the slider. This allows the nozzle 51 to cover the entire axial length of the roller 10, uniformly spraying the cleaning fluid onto a wider roller surface, without the need for multiple nozzles 51 in fixed positions, thus reducing costs.

[0136] The water pump 54 is the power source for the liquid dispensing mechanism 50. It is responsible for drawing the cleaning fluid from the water tank 56 and delivering it to the nozzle 51 through the water pipe 55. The water pump 54 can control the spray pressure and flow rate of the cleaning fluid, thereby achieving the best cleaning effect.

[0137] In some optional embodiments, the water tank 56 also includes a water level sensor. The water level sensor is connected to the control system and triggers an alarm when the water level falls below a preset value. Alarm methods include, but are not limited to, audible alarms, visual alarms, or sending information to the operator via the control system, so that timely measures can be taken to replenish the cleaning fluid and ensure the continuous operation of the cleaning roller device 40.

[0138] According to some embodiments of the present invention, the cleaning roller device 40, as shown in FIG2, further includes a liquid adding mechanism 50: a cable chain 53. One end of the cable chain 53 is connected to a linear motion mechanism 52 and the other end is connected to a nozzle 51, and a portion of a water pipe 55 is disposed on the cable chain 53.

[0139] When the linear motion mechanism 52 drives one end of the cable chain 53 to move, the nozzle 51 at the other end of the cable chain 53 can also move flexibly along with the movement of the cable chain 53.

[0140] Part of the water pipe 55 is mounted on the drag chain 53, which allows the water pipe 55 to move flexibly together with the nozzle 51, avoiding friction between the water pipe 55 and other components in the liquid filling mechanism 50, and preventing the water pipe 55 from getting tangled.

[0141] According to a second aspect embodiment of the present invention, a roller press 100 for an electrode 30 includes two rollers 10 and at least one cleaning roller device 40. The two rollers 10 are arranged in parallel and spaced apart and rotate in opposite directions, with the gap between the two rollers 10 for the electrode 30 to pass through. The cleaning roller device 40 is the same as the cleaning roller device 40 according to a first aspect embodiment of the present invention.

[0142] In some embodiments shown in Figure 8, there are two rollers 10 and two cleaning roller devices 40, with each cleaning roller device 40 corresponding to the rolling surface of one roller 10.

[0143] In the above technical solution, two rollers 10 are mounted on the frame 20 with a certain gap between them. This gap is specifically reserved for the electrode 30 to ensure that the electrode 30 can pass smoothly and be subjected to uniform roller pressure. The two rollers 10 rotate in opposite directions, a design that helps to better pull and compress the electrode 30.

[0144] By providing the cleaning device 40 of the first aspect of the present invention on the roller pressing surface of the roller 10, the cleaning device 40 can efficiently remove the slurry on the roller surface, while ensuring the cleanliness of the electrode 30 production environment and effective cost control.

[0145] The cleaning roller device 40 according to an embodiment of the present invention will now be described in detail with reference to Figures 1-7, using a specific example. It is to be understood that the following description is merely illustrative and not intended to limit the invention.

[0146] Referring to Figure 1, the cleaning roller device 40 includes: a liquid adding mechanism 50, a wetting mechanism 60, a scraping mechanism 70, a drying device 80, and a liquid receiving tank 90.

[0147] In the rotation direction of roller 10, liquid adding mechanism 50, wetting mechanism 60, scraping mechanism 70 and drying device 80 are arranged sequentially from upstream to downstream.

[0148] The liquid dispensing mechanism 50 is used to dispense cleaning liquid onto the roller 10's roller-pressed fabric.

[0149] Referring to Figure 2, the liquid dispensing mechanism 50 includes: a nozzle 51, a linear motion mechanism 52, a cable chain 53, a water pump 54, a water pipe 55, and a water tank 56.

[0150] One end of the drag chain 53 is connected to the linear motion mechanism 52 and the other end is connected to the nozzle 51. Part of the water pipe 55 is located on the drag chain 53.

[0151] The water pump 54 is connected to the nozzle 51 and the water tank 56 via water pipes 55.

[0152] Referring to Figures 3-4, the wetting mechanism 60 includes: a water-absorbing component 61, a cloth-pressing component 62, and a driving component 63. The wetting mechanism 60 is used to press the water-absorbing component 61 onto the roller pressing surface. The water-absorbing component 61 is used to absorb the cleaning liquid and wet the material on the roller pressing surface.

[0153] The pressing component 62 includes a pressing plate 621 and a hanging shaft 622. In the rotation direction of the roller 10, the hanging shaft 622 is located upstream of the pressing plate 621.

[0154] The surface of the pressing plate 621 facing the roller pressing surface forms an arc-shaped surface that matches the shape of the roller pressing surface.

[0155] The absorbent 61 is a piece of cloth, which is hung on the hanging shaft 622. The part of the cloth located on both sides of the hanging shaft 622 is located on the side of the pressing plate 621 facing the roller pressing surface.

[0156] The pressing plate 621 includes a rotating shaft 6211. The rotating shaft 6211 of the pressing plate 621 is located at the end of the pressing plate 621 away from the hanging shaft 622. The output end 631 of the drive member 63 is used to drive the pressing plate 621 to rotate about the rotating shaft 6211.

[0157] Referring to Figures 5-6, the scraping mechanism 70 includes: a scraper 71, a blade holder 72, a blade shaft 73, an elastic element 74, a positioning fastener 75, and a pusher 76. The scraper 71 is used to scrape the liquid off the roller surface.

[0158] The end of the cutter shaft 73 is located inside the tool holder 72, and the cutter shaft 73 and the tool holder 72 are connected by an elastic element 74.

[0159] The scraper 71 is mounted on the cutter shaft 73.

[0160] The cutter shaft 73 includes a actuating part 731. The cutter shaft 73 is rotatable between a first angle and a second angle. The cutter shaft 73 is configured such that when rotated towards the first angle, the distance between the scraper 71 and the roller surface decreases. A positioning fastener 75 is movably provided on the cutter holder 72. When the positioning fastener 75 cooperates with the cutter shaft 73, it fixes the angle of the cutter shaft 73.

[0161] The pusher 76 is movably mounted on the cutter holder 72, and the pusher 76 is located on the side of the actuating part 731 away from the roller pressing surface.

[0162] One end of the pusher 76 abuts against the actuating part 731. When the pusher 76 moves toward the roller pressing surface, it is adapted to push the cutter shaft 73 to rotate to a first angle.

[0163] The elastic element 74 is a coil spring, which pulls the cutter shaft 73 to the second angle.

[0164] There are two scraper components 71, which are suitable for being arranged at intervals along the circumference of the roller 10.

[0165] Referring to Figure 1, there is one liquid receiving tank 90, which is located below all the scraping parts 71 to collect the liquid scraped by the scraping parts 71.

[0166] The drying device 80 is used to dry the roller-pressed surface.

[0167] Referring to Figure 7, the drying device 80 includes: an air knife 81, a fan 82, and a heater 83.

[0168] The air knife 81 is suitable for discharging air towards the roller pressing surface.

[0169] The blower 82 is connected to the air knife 81 to transport gas.

[0170] The heater 83 is located between the air knife 81 and the fan 82.

[0171] Other components of the cleaning roller device 40 according to embodiments of the present invention, such as the roller press 100, and its operation are known to those skilled in the art and will not be described in detail here.

[0172] In the description of this specification, references to terms such as "embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0173] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A cleaning roller device, characterized in that, include: A liquid adding mechanism for adding cleaning liquid to the roller-pressed fabric; The system includes a wetting mechanism comprising a water-absorbing element that presses the water-absorbing element onto the roller surface, the water-absorbing element absorbing the cleaning liquid and wetting the material on the roller surface; a scraping mechanism comprising a scraper for scraping liquid off the roller surface; and a liquid receiving tank located below the scraper to collect the liquid scraped off by the scraper. The liquid adding mechanism, the wetting mechanism, and the scraping mechanism are arranged sequentially from upstream to downstream in the rotation direction of the roller. The scraping mechanism further includes a cutter holder and a cutter shaft rotatably connected to the cutter holder. The scraper is mounted on the cutter shaft, which is rotatable between a first angle and a second angle. The cutter shaft is configured such that the distance between the scraper and the roller surface decreases when rotating towards the first angle. The positioning fastener is movably disposed on the cutter holder and fixes the angle of the cutter shaft when it cooperates with the cutter shaft. The wetting mechanism includes: a pressing cloth component, at least a portion of which is disposed on the side of the pressing cloth component facing the roller pressing surface; a driving component, the output end of which is connected to the pressing cloth component and drives the pressing cloth component to move closer to and away from the roller pressing surface; the pressing cloth component includes a pressing cloth plate, and the plate surface of the pressing cloth plate facing the roller pressing surface forms an arc-shaped surface consistent with the shape of the roller pressing surface; the pressing cloth component includes: a pressing cloth plate and a hanging shaft, and the hanging shaft is located upstream of the pressing cloth plate in the rotation direction of the roller; the absorbent component is a cloth sheet, which is hung on the hanging shaft, and the portions of the cloth sheet located on both sides of the hanging shaft are located on the side of the pressing cloth plate facing the roller pressing surface.

2. The cleaning roller device according to claim 1, characterized in that, Also includes: A drying device for drying the roller surface, wherein the output end of the drying device is located downstream of the scraping mechanism in the rotation direction of the roller.

3. The cleaning roller device according to claim 2, characterized in that, The drying device includes: an air knife adapted to discharge air toward the roller surface; and a fan connected to the air knife to transport gas.

4. The cleaning roller device according to claim 3, characterized in that, The drying device further includes a heater disposed between the air knife and the fan.

5. The cleaning roller device according to claim 1, characterized in that, The scraper is at least two and is adapted to be arranged at intervals along the circumference of the roller; the liquid receiving groove is one and is located below all the scraper.

6. The cleaning roller device according to claim 1, characterized in that, The scraping mechanism further includes an elastic element, the two ends of which are respectively connected to the blade holder and the blade shaft, so as to pull the blade shaft to the second angle.

7. The cleaning roller device according to claim 6, characterized in that, The elastic element is a coil spring disposed within the tool holder, the end of the tool shaft is located within the tool holder, and the inner end of the coil spring is connected to the tool shaft.

8. The cleaning roller device according to claim 6, characterized in that, The outer circumferential surface of the cutter shaft is provided with a deflecting part; the scraping mechanism further includes: a pusher, one end of which abuts against the deflecting part, the pusher being adapted to be disposed on the side of the deflecting part away from the roller pressing surface; the pusher is movably disposed on the cutter holder, and pushes the cutter shaft to rotate at the first angle when moving toward the roller pressing surface.

9. The cleaning roller device according to claim 1, characterized in that, The pressing plate is rotatably connected to the output end of the drive unit; and the rotation axis of the pressing plate is located at the end of the pressing plate away from the hanging shaft.

10. The cleaning roller device according to any one of claims 1-8, characterized in that, The liquid adding mechanism has a nozzle that sprays water onto the roller pressing surface, and the cleaning liquid is deionized water.

11. The cleaning roller device according to claim 10, characterized in that, The nozzles are multiple and are arranged at intervals along the axial direction of the roller.

12. The cleaning roller device according to any one of claims 1-8, characterized in that, The liquid dispensing mechanism further includes: a linear motion mechanism, which includes a slider that slides along the axial direction of the roller; a nozzle mounted on the slider; and a water pump connected to the nozzle via a water pipe.

13. The cleaning roller device according to claim 12, characterized in that, The liquid filling mechanism further includes a cable chain, one end of which is connected to the linear motion mechanism and the other end of which is connected to the nozzle, and a portion of the water pipe is disposed on the cable chain.

14. A roller press for electrode sheets, characterized in that, include: Two rollers are arranged in parallel and spaced apart and rotate in opposite directions, with the gap between the two rollers used for the passage of electrode sheets; at least one cleaning roller device is a cleaning roller device according to any one of claims 1-13, and each cleaning roller device is arranged corresponding to the roller pressing surface of one of the rollers.

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