Roller cleaning device and pole piece roller press

Abstract

The invention discloses a roller cleaning device and a pole piece roller press, and relates to the field of battery production equipment. The roller cleaning device comprises a liquid adding mechanism, a soaking mechanism, a liquid scraping mechanism and a liquid receiving tank. The liquid adding mechanism is used for applying cleaning liquid to the rolling surface cloth of the roller; the soaking mechanism comprises a water absorption part and is used for pressing the water absorption part on the rolling surface, and the water absorption part is used for absorbing the cleaning liquid and soaking materials on the rolling surface; the liquid scraping mechanism comprises a liquid scraping piece, and the liquid scraping piece is used for scraping liquid on the rolling surface; the liquid receiving tank is arranged below the liquid scraping piece and is used for containing the liquid scraped by the liquid scraping piece; wherein in the rotating direction of the roller, the liquid adding mechanism, the soaking mechanism and the liquid scraping mechanism are sequentially arranged from upstream to downstream. According to the roller cleaning device disclosed by the embodiment of the invention, the roller surface slurry can be efficiently cleaned, and meanwhile, the cleanness of a pole piece production environment and the effective control of cost are ensured.

Description

Technical Field

[0001] The invention relates to the field of battery production, and in particular to a roller cleaning device and a roller press for pole pieces. Background Art

[0002] In the production process of batteries, pole sheet rolling is a key step. The roller surface is prone to adhesion of slurry during the rolling process, which will cause the slurry to accumulate and adhere more firmly to the roller surface during the rolling process, and then contaminate the new pole sheet in the subsequent rolling process, showing defects such as foil leakage and black spots, and seriously damaging the quality of the pole sheet.

[0003] In order to solve this problem, some existing technologies have adopted the method of circulating oil-impregnated non-woven fabric to wipe the roller. However, this method faces the problem of difficult to accurately control the amount of silicone oil in practical applications. When the amount of silicone oil is insufficient, the cleaning effect of the non-woven fabric is greatly reduced, and it is unable to effectively remove the sticky material on the roller surface; while excessive silicone oil may reversely contaminate the roller surface, causing the silicone oil to be contaminated on the electrode, which also causes quality problems. In addition, the continued use of this method also consumes a large amount of silicone oil and non-woven fabric resources, increasing the production cost of battery electrodes, which is not conducive to improving production efficiency and economic benefits.

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

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the first aspect of the present invention aims to provide a roller cleaning device, which can efficiently remove roller surface slurry while ensuring the cleanliness of the pole piece production environment and effective cost control.

[0006] The second aspect of the present invention aims to provide a roller press for pole pieces.

[0007] According to the first aspect of the present invention, the roller cleaning device comprises a liquid adding mechanism, a soaking mechanism, a liquid scraping mechanism and a liquid receiving tank. The liquid adding mechanism is used to apply cleaning liquid to the roller surface of the roller; the soaking mechanism comprises a water absorbing member, the soaking mechanism is used to press the water absorbing member onto the roller surface, the water absorbing member is used to absorb the cleaning liquid and soak the material on the roller surface; the liquid scraping mechanism comprises a liquid scraping member, the liquid scraping member is used to scrape off the liquid on the roller surface; the liquid receiving tank is arranged below the liquid scraping member to receive the liquid scraped off by the liquid scraping member; wherein, in the rotation direction of the roller, the liquid adding mechanism, the soaking mechanism and the liquid scraping mechanism are arranged in sequence from upstream to downstream.

[0008] According to the roller cleaning device of the embodiment of the present invention, a liquid adding mechanism is provided to ensure that an appropriate amount of cleaning liquid can cover the roller surface. A soaking mechanism is provided to promote full contact and penetration between the cleaning liquid and the roller surface, which helps to break down the dirt on the roller surface. Finally, the liquid scraping mechanism removes the dirt on the roller surface and the excess cleaning liquid, ensuring that the roller surface is cleaned.

[0009] In the present application, liquid is first added to the rolling surface to wet the oil stain, and then the water-absorbing component is pressed on the rolling surface. The water-absorbing component itself can absorb the cleaning liquid on the rolling surface, so that the water-absorbing component has adsorption after absorbing the liquid and can better fit the rolling surface, which is conducive to a more uniform distribution of the cleaning liquid on the rolling surface, and can absorb excess cleaning liquid, so that the water-absorbing component can apply excess cleaning liquid on the rolling surface when insufficient liquid is added, thereby improving the sufficiency and uniformity of liquid distribution and reducing waste. In addition, pressing the water-absorbing component is conducive to wiping off stubborn stains on the rolling surface, or forcing the cleaning liquid to immerse in the stubborn stains, so that the subsequent scraping component can scrape the rolling surface more cleanly. The scraped cleaning liquid is collected by the liquid receiving tank to reduce sewage pollution.

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

[0011] According to some embodiments of the roller cleaning device of the present invention, the drying device includes: an air knife, the air knife is suitable for blowing air toward the rolling surface; and a fan connected to the air knife to transport gas.

[0012] According to the roller cleaning device of some embodiments of the present invention, the drying device further comprises: a heater disposed between the wind knife and the fan.

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

[0014] According to some embodiments of the roller cleaning device of the present invention, the scraping mechanism also includes: a blade seat; a blade shaft, the blade shaft is rotatably connected to the blade seat, the scraping element is arranged on the blade shaft, the blade shaft is rotatable between a first angle and a second angle, the blade shaft is configured so that when rotating toward the first angle, the distance between the scraping element and the rolling surface decreases; a positioning fastener, the positioning fastener is movably arranged on the blade seat, and the positioning fastener fixes the angle of the blade shaft when cooperating with the blade shaft.

[0015] In some optional embodiments, the scraping mechanism further includes: an elastic member, wherein two ends of the elastic member are respectively connected to the blade seat and the blade shaft to pull the blade shaft to the second angle.

[0016] In some optional embodiments, the elastic member is a coil spring disposed in the knife seat, the end of the knife shaft is located in the knife seat, and the inner end of the coil spring is connected to the knife shaft.

[0017] In some optional embodiments, the outer peripheral surface of the blade shaft is provided with a toggle portion; the scraping mechanism further includes: a push piece, one end of which abuts against the toggle portion, and the push piece is suitable for being arranged on a side of the toggle portion away from the rolling surface; the push piece is movably arranged on the blade seat, and pushes the blade shaft to rotate toward the first angle when moving toward the rolling surface.

[0018] According to some embodiments of the roller cleaning device of the present invention, the wetting mechanism includes: a cloth pressing member, at least a portion of the water absorbing member is arranged on a side of the cloth pressing member facing the rolling surface; and a driving member, an output end of the driving member is connected to the cloth pressing member, and the driving member drives the cloth pressing member to approach and move away from the rolling surface.

[0019] In some optional embodiments, the cloth pressing member includes a cloth pressing plate, and a plate surface of the cloth pressing plate facing the rolling surface forms an arc surface consistent with the shape of the rolling surface.

[0020] In some optional embodiments, the cloth pressing member includes: a cloth pressing plate and a hanging shaft, in the rotation direction of the roller, the hanging shaft is located upstream of the cloth pressing plate; the water absorbent member is a cloth piece, the cloth piece is hung on the hanging shaft, and the parts of the cloth piece located on both sides of the hanging shaft are located on the side of the cloth pressing plate facing the rolling surface.

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

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

[0023] In some optional embodiments, there are multiple nozzles, which are arranged at intervals along the axial direction of the roller.

[0024] According to some embodiments of the roller cleaning device of the present invention, the liquid adding mechanism also includes: a linear motion mechanism, the linear motion mechanism includes a slider, the slider slides along the axial direction of the roller; a nozzle, the nozzle is installed on the slider; and a water pump, the water pump is connected to the nozzle through a water pipe.

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

[0026] The pole piece roller press according to the second aspect of the present invention comprises: two rollers, which are arranged in parallel and spaced apart and rotate in opposite directions, and the gap between the two rollers is used for passing the pole piece; at least one roller cleaning device, which is the roller cleaning device according to the first aspect of the present invention, and each roller cleaning device is arranged corresponding to the rolling surface of one roller.

[0027] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0029] Figure 1 It is a structural schematic diagram of a roller cleaning device in some embodiments of the present invention;

[0030] Figure 2 It is a structural schematic diagram of the liquid adding mechanism of some embodiments of the present invention;

[0031] Figure 3 It is a schematic diagram of the structure of the wetting mechanism of some embodiments of the present invention;

[0032] Figure 4 A side view of a cloth pressing member according to some embodiments of the present invention;

[0033] Figure 5 It is a schematic diagram of the structure of the liquid scraping mechanism of some embodiments of the present invention;

[0034] Figure 6 A side view of a liquid scraping mechanism according to some embodiments of the present invention;

[0035] Figure 7 It is a schematic diagram of the structure of the drying device of some embodiments of the present invention;

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

[0037] Reference numerals:

[0038] Roller press 100,

[0039] Roller 10, frame 20, pole piece 30,

[0040] Roller cleaning device 40,

[0041] Liquid adding mechanism 50, nozzle 51, linear motion mechanism 52, drag chain 53, water pump 54, water pipe 55, water tank 56, soaking mechanism 60, water absorbing member 61, cloth pressing member 62, cloth pressing plate 621, rotating shaft 6211, hanging shaft 622, driving member 63, output end 631,

[0042] The scraping mechanism 70, the scraping member 71, the knife seat 72, the knife shaft 73, the toggle portion 731, the elastic member 74, the positioning fastener 75, the ejection member 76,

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

[0044] Liquid receiving tank 90. DETAILED DESCRIPTION

[0045] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0046] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation and be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0047] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] Reference below Figure 1 - Figure 7 A roller cleaning device 40 according to an embodiment of the first aspect of the present invention will be described.

[0049] It is worth mentioning that the application field of the roller cleaning device 40 is not limited to the production of pole pieces 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. It can effectively improve the roller surface cleaning effect and enhance product quality and production efficiency.

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

[0051] The liquid adding mechanism 50 is used to apply the cleaning liquid to the rolling surface of the roller 10. The liquid adding mechanism 50 applies the cleaning liquid to the rolling surface in any manner. The liquid adding mechanism 50 may spray the cleaning liquid on the rolling surface, or the liquid adding mechanism 50 may pour the cleaning liquid on the rolling surface. The following description will be made by taking the example of the liquid adding mechanism 50 spraying the cleaning liquid on the rolling surface.

[0052] Combination Figure 1 - Figure 2 As the starting point of the cleaning process, the liquid adding mechanism 50 can add cleaning liquid to the roller cleaning device 40. When the roller 10 starts to rotate, the liquid adding mechanism 50 will evenly spray an appropriate amount of cleaning liquid onto the rolling surface of the roller 10. These cleaning liquids can not only effectively soften and loosen the materials adhering to the roller surface, but also provide the necessary wet environment for the subsequent cleaning steps.

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

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

[0055] like Figure 1 , Figure 3 As shown, the soaking mechanism 60 includes a water absorbing member 61. The soaking mechanism 60 is used to press the water absorbing member 61 onto the rolling surface. The water absorbing member 61 is used to absorb the cleaning liquid and soak the material on the rolling surface.

[0056] The wetting mechanism 60 includes a water absorbing member 61, which is used to deeply clean the roller surface. The water absorbing member 61 is gently pressed on the roller surface, and uses its moisture absorption capacity to quickly absorb and wet the cleaning liquid and adhered materials on the roller surface. This step not only further softens the adhered materials, but also makes the subsequent scraping operation smoother.

[0057] Optionally, the water absorbing member 61 is a non-woven fabric or other materials with water absorption, air permeability and softness. When the water absorbing member 61 is a non-woven fabric, the porous structure of the non-woven fabric can be used to quickly absorb and evenly distribute the cleaning liquid, effectively soaking the material on the roller surface, and laying a good foundation for the subsequent scraping operation.

[0058] In addition to non-woven fabrics, other materials with water absorption, air permeability and softness can also be selected as the absorbent member 61. For example, cloth made of polyester staple fibers. This polyester staple fiber cloth has a three-dimensional spatial structure, and the three-dimensional spatial structure is conducive to the rapid absorption and locking of water; or the absorbent member 61 is a fabric made of ultrafine fibers. Since the fiber fineness of ultrafine fibers is extremely fine, the rigidity of the fibers can be reduced, and this fabric is relatively soft and has better water absorption. It is not easy to produce lint during the wiping process, and it has a strong absorption capacity for cleaning liquid, and is easy to remove dirt and easy to clean; or, the absorbent member 61 is a water-absorbing sponge.

[0059] In some optional embodiments, the water absorbent member 61 is multi-layered. By configuring the water absorbent member 61 to be multi-layered, not only can its water absorption capacity be enhanced, but also the overall durability and adaptability are improved.

[0060] In some embodiments, the materials of each layer of the water-absorbing member 61 can be optimized and combined according to the functions they need to perform. For example, the surface water-absorbing layer may be made of highly absorbent, soft and skin-friendly materials, such as ultrafine fibers or specially treated natural fibers, to ensure good contact with the roller surface and rapid water absorption. The middle 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 it from penetrating. The bottom support layer pays more attention to wear resistance, stability and durability, and may be made of materials such as polyester fiber or reinforced mesh cloth.

[0061] Alternatively, in some embodiments, the thickness and density of each layer of the multi-layer water-absorbing member 61 can be adjusted as required. For example, increasing the thickness of the surface water-absorbing layer can increase its water absorption capacity; while adjusting the density of the middle water-locking layer helps to better control the diffusion and locking of water. This flexibility allows the multi-layer water-absorbing member 61 to adapt to the cleaning needs of different roller surfaces and reduce waste while ensuring the cleaning effect.

[0062] In order to improve the use efficiency and convenience of the water absorbing member 61, in some embodiments, the water absorbing member 61 is configured as a replaceable structure. That is, when the surface water absorbing layer loses its water absorbing performance due to long-term use, the water absorbing member 61 can be replaced. This design can ensure the cleaning effect of the roller 10.

[0063] like Figure 1 , Figure 5 - Figure 6 As shown, the scraping mechanism 70 includes a scraping member 71, which is used to scrape off the liquid on the roller surface. Optionally, the scraping member 71 is a scraper or a scraping brush, etc. The material of the scraping member 71 is not limited.

[0064] The scraper 71 is inclined at a certain angle so that it can be closely attached to the roller surface and slide along with the rotation of the roller 10. This angle can be adjusted according to factors such as the material of the roller surface, the properties of the liquid, and the scraping requirements. Avoiding too small an angle may result in incomplete scraping, while avoiding too large an angle may increase the friction between the scraper 71 and the roller surface, accelerating wear.

[0065] Combination Figure 1 The liquid receiving tank 90 is disposed below the liquid scraping member 71 to receive the liquid scraped by the liquid scraping member 71 .

[0066] The shape and length of the liquid receiving groove 90 are suitable for matching the working range of the liquid scraping member 71. The width of the liquid receiving groove 90 is suitable for ensuring that all liquid scraped by the liquid scraping member 71 is contained to avoid overflow. Optionally, the liquid receiving groove 90 is a rectangular container. The capacity of the liquid receiving groove 90 is suitable for containing all liquid scraped by the liquid scraping member 71.

[0067] In some optional embodiments, a guide hole is provided below the liquid receiving tank 90, and the guide hole connects the inside and outside of the liquid receiving tank 90. ​​The 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 from overflowing and keeping the liquid receiving tank 90 and its surrounding environment dry and clean.

[0068] Among them, in the rotation direction of the roller 10, combined with Figure 1 The liquid adding mechanism 50, the wetting mechanism 60 and the liquid scraping mechanism 70 are arranged in sequence from upstream to downstream.

[0069] This arrangement enables sequential processing between the mechanisms, wherein each mechanism has a specific task to ensure that the surface of the roller 10 can be cleaned evenly and effectively.

[0070] First, the liquid adding mechanism 50 is located at the uppermost end of the entire treatment process, that is, the starting end of cleaning. The liquid adding mechanism 50 is responsible for adding the required liquid to the surface of the roller 10 quantitatively and evenly, such as clean water, detergent, etc.

[0071] Then, the wetting mechanism 60 is located in the midstream area of ​​the treatment process. The wetting mechanism 60 can ensure that the liquid on the water absorbing member 61 can fully wet the material on the rolling surface.

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

[0073] Through the cooperation of the above-mentioned multiple mechanisms in the cleaning process of the roller 10, it is ensured that the surface of the roller 10 is fully and effectively treated, and at the same time, the excess cleaning liquid on the surface of the roller 10 can be removed to achieve the removal of dirt and cleaning liquid on the surface of the roller 10.

[0074] like Figure 8 As shown, the roller cleaning device 40 according to some embodiments of the present invention further includes: a drying device 80, which is used to dry the roller 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] The drying device 80 is provided to further improve the integrity and efficiency of the cleaning process of the roller 10. The drying device 80 is mainly used to dry the roller surface after being treated by the scraping mechanism 70 to ensure that there is no residual water or cleaning liquid on the surface of the roller 10.

[0076] In the rotation direction of the roller 10, the drying device 80 is arranged at the downstream position of the scraping mechanism 70. This means that after the surface of the roller 10 is effectively treated by the scraping mechanism 70, it will immediately enter 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 hot air drying, hot air circulation, infrared radiation heating, vacuum drying, etc., which can effectively remove moisture from the surface of the roller 10 and achieve rapid drying.

[0078] Optionally, the drying device 80 includes: an air knife 81 and a fan 82, wherein the air knife 81 is adapted to blow air toward the rolling surface, and the fan 82 is connected to the air knife 81 to transport gas.

[0079] It can be known that the wind 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 rolled surface because it can be close to the surface of the roller 10. In addition, the air knife 81 can also cover the entire width of the roller 10, thereby ensuring that every corner of the surface of the roller 10 can be fully dried.

[0081] Optionally, the air outlet direction of the air knife 81 is opposite to the moving direction of the rolling surface, which can improve the drying efficiency.

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

[0083] Specifically, when the wind knife 81 and the fan 82 work together, the fan 82 delivers pressurized gas to the wind knife 81, and the wind knife 81 blows the gas toward the rolling surface in the form of high-speed and uniform airflow. When the airflow contacts the surface of the roller 10, it will take away the moisture and residual cleaning liquid thereon, thereby achieving rapid drying of the rolling surface.

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

[0085] In this arrangement, the fan 82 can suck in air and first deliver it to the heater 83, and the heater 83 will use electric heating, gas heating or other heating methods to quickly increase the temperature of the air. The heated gas then enters the wind knife 81 and is blown toward the rolling surface through the nozzle of the wind knife 81 in the form of high-speed, high-temperature airflow.

[0086] When this high-temperature airflow contacts the surface of the roller 10, it can not only quickly remove the moisture and residual cleaning liquid thereon, but also increase the temperature of the surface of the roller 10 to a certain extent through heat conduction and convection, thereby accelerating the evaporation process of the moisture. Compared with the unheated dry airflow, the high-temperature airflow has a stronger drying ability and a faster drying speed, and can more thoroughly remove the moisture and residue on the surface of the roller 10.

[0087] Optionally, the heater 83 further includes a temperature control unit. The temperature control unit can ensure that the temperature inside the heater 83 is always maintained within a set range, thereby achieving accurate control of the temperature of the drying airflow, thereby ensuring that the rolling surface is thoroughly dried, and can also avoid 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 roller cleaning device 40 is combined with Figure 1 There are at least two liquid scraping members 71 , which are arranged at intervals along the circumference of the roller 10 . There is one liquid receiving tank 90 , which is arranged below all the liquid scraping members 71 .

[0089] The plurality of scraping members 71 can scrape the surface of the roller 10 from different angles and positions, thereby more effectively removing the residue or cleaning liquid attached to the roller 10. By being arranged at intervals along the circumference of the roller 10, each scraping member 71 can contact the surface of the roller 10 to achieve cleaning and avoid omission.

[0090] In some optional embodiments, there are two scraping members 71; in the rotation direction of the roller 10, the scraping member 71 located upstream is a hard scraping member 71, and the scraping member 71 located downstream is a soft scraping member 71. In this way, different types of residues on the surface of the roller 10 can be effectively removed by combining scraping members 71 of different materials.

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

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

[0093] According to some embodiments of the present invention, the roller cleaning device 40, such as Figure 5 - Figure 6 As shown, the scraping mechanism 70 further includes: a knife seat 72, a knife shaft 73 and a positioning fastener 75. The knife shaft 73 is rotatably connected to the knife seat 72, and the scraping member 71 is arranged on the knife shaft 73. The knife shaft 73 can rotate between a first angle and a second angle. The knife shaft 73 is configured so that when the scraping member 71 rotates toward the first angle, the distance between the scraping member 71 and the rolling surface decreases. The positioning fastener 75 is movably arranged on the knife seat 72, and the positioning fastener 75 and the knife shaft 73 are matched to fix the angle of the knife shaft 73.

[0094] The blade holder 72 is a basic supporting structure of the scraping mechanism 70, which is firmly mounted on the roller cleaning device 40 and provides a rotation basis for the blade shaft 73. Figure 5 There are two knife seats 72, which are arranged at intervals along the two ends of the scraper 71. The two ends of the knife shaft 73 are respectively arranged at the two knife seats 72.

[0095] The blade shaft 73 is rotatably connected to the blade seat 72, and the blade shaft 73 can be adjusted around its axis within a certain range. The scraper 71 is fixedly arranged on the blade shaft 73 and moves with the rotation of the blade shaft 73. The blade shaft 73 can rotate freely between a first angle and a second angle, and the two angles correspond to different distances between the scraper 71 and the rolling surface.

[0096] When the blade shaft 73 rotates to the first angle, the distance between the scraper 71 and the rolling surface gradually decreases until the optimal cleaning position is reached. At this time, the scraper 71 can fit the rolling surface tightly and effectively remove the residue on the surface. When the blade shaft 73 rotates to the second angle, the scraper 71 gradually moves away from the rolling surface, making room for subsequent maintenance or replacement work.

[0097] The angle of the knife shaft 73 can be adjusted manually by an operator, or by rotation adjustment through the elastic member 74 .

[0098] The scraping mechanism 70 further includes a positioning fastener 75. The positioning fastener 75 is movably disposed on the blade seat 72 and is used to fix the position of the blade shaft 73 at a specific angle. For example, when the blade shaft 73 rotates to a first angle, by adjusting the matching relationship between the positioning fastener 75 and the blade shaft 73, the angle of the blade shaft 73 can be firmly locked to prevent it from accidentally rotating during operation.

[0099] In some optional embodiments, a knife groove is provided on the knife shaft 73, and the knife groove is extended along the axial direction of the knife shaft 73. The knife groove is used to install the scraper 71. Therefore, the shape and size of the knife groove are adapted to the scraper 71 to ensure that the scraper 71 can be firmly installed on the knife shaft 73. At least part of the scraper 71 is embedded in the knife groove, and the other part is extended toward the rolling surface, so that the scraper 71 can contact the rolling surface and perform effective cleaning. Optionally, the knife groove and the scraper 71 are interference fit.

[0100] In some optional embodiments, combined with Figure 6 The scraping mechanism 70 further includes an elastic member 74, wherein two ends of the elastic member 74 are respectively connected to the knife seat 72 and the knife shaft 73 to pull the knife shaft 73 toward the second angle.

[0101] The elastic member 74 is used to connect the knife seat 72 and the knife shaft 73. The elastic member 74 also gives the knife shaft 73 an automatic reset function. Specifically, the two ends of the elastic member 74 are respectively connected to the knife shaft 73 and the knife seat 72, forming a kind of elastic connection mechanism.

[0102] When the positioning fastener 75 is loosened, the elastic member 74 utilizes its own elastic force to pull the cutter shaft 73 toward the second angle direction. In this process, the cutter shaft 73 gradually moves away from the rolling surface, and a spacious maintenance space is formed between the scraping member 71 and the rolling surface.

[0103] Through the automatic resetting of the elastic member 74 , the operator can easily obtain enough space to maintain or replace the scraper member 71 without manually adjusting the position of the knife shaft 73 , thereby improving the automation level of the roller cleaning device 40 .

[0104] In some optional embodiments, the elastic member 74 is a coil spring disposed in the knife seat 72 , the end of the knife shaft 73 is located in the knife seat 72 , and the inner end of the coil spring is connected to the knife shaft 73 .

[0105] The coil spring utilizes the space inside the knife seat 72 and is arranged inside the knife seat 72, which not only ensures the compactness of the overall structure after installation, but also avoids interference from the external environment. The axial direction of the coil spring is parallel to the axial direction of the knife shaft 73, and the elastic force of the coil spring can drive the knife shaft 73 to twist. Specifically, when the coil spring is in a power storage state, its elastic force accumulates along the axial direction; and when the knife shaft 73 needs to be reset, this elastic force will be converted into a power to push or pull the knife shaft 73 to twist, so that the knife shaft 73 can move smoothly along the preset trajectory.

[0106] In some Figure 6 In the illustrated embodiment, the outer peripheral surface of the blade shaft 73 is provided with a toggle portion 731. The scraping mechanism 70 further includes: a push member 76, one end of which abuts against the toggle portion 731, and the push member 76 is suitable for being arranged on a side of the toggle portion 731 away from the rolling surface; the push member 76 is movably arranged on the blade seat 72, and pushes the blade shaft 73 to rotate toward the first angle when moving toward the rolling surface.

[0107] The toggle portion 731 is used to interact with the ejection member 76. The shape and position of the toggle portion 731 are suitable for accurately and stably contacting the ejection member 76.

[0108] One end of the push member 76 directly abuts against the toggle portion 731 of the knife shaft 73. The other end or main body of the push member 76 is mounted on the knife seat 72 so that it can move within a certain range. The push member 76 is arranged on the side of the toggle portion 731 away from the rolling surface to ensure that when the knife shaft 73 is driven to rotate, it will not directly interfere with the normal working gap between the knife shaft 73 and the rolling surface.

[0109] When the angle of the blade shaft 73 needs to be adjusted, the push member 76 starts to work. The push member 76 is driven by an external force (such as manual, pneumatic, electric, etc.) to move in the direction toward the rolling surface. As the push member 76 pushes, the force it abuts against the toggle portion 731 is converted into a torque that causes the blade shaft 73 to rotate around its axis. This torque causes the blade shaft 73 to rotate along a preset trajectory (usually in the direction of the first angle, that is, the direction closer to or farther away from the rolling surface).

[0110] Therefore, by providing the toggle portion 731 on the blade shaft 73 and combining it with the push-out member 76, the scraping mechanism 70 can flexibly adjust the angle of the blade shaft 73, thereby improving the adaptability and efficiency of the scraping operation.

[0111] According to some embodiments of the present invention, the roller cleaning device 40, such as Figure 3 - Figure 4 As shown, the soaking mechanism 60 includes: a cloth pressing member 62 and a driving member 63. At least part of the water absorbing member 61 is arranged on the side of the cloth pressing member 62 facing the rolling surface. The output end 631 of the driving member 63 is connected to the cloth pressing member 62, and the driving member 63 drives the cloth pressing member 62 to approach and move away from the rolling surface.

[0112] The water absorbing member 61 is arranged on the side of the cloth pressing member 62 facing the rolling surface. When the cloth pressing member 62 is close to the rolling surface, the water absorbing member 61 can directly cling to the roller surface and absorb the cleaning liquid on the roller surface by its own water absorbing performance.

[0113] The driving member 63 is a power source of the soaking mechanism 60, and its output end 631 is closely connected to the cloth pressing member 62. The driving member 63 can drive the cloth pressing member 62 to move closer to or away from the rolling surface. This dynamic adjustment capability ensures that the contact pressure between the cloth pressing member 62 and the rolling surface can reach an optimal state at different cleaning stages.

[0114] When the driving member 63 drives the cloth pressing member 62 to approach the roller surface, the water absorbing member 61 is then closely attached to the roller surface, increasing the contact pressure with the roller surface. Due to the pressure of the cloth pressing member 62, the friction pressure between the water absorbing member 61 and the roller surface is also increased, which helps to clean the stubborn stains and residues on the roller surface more deeply.

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

[0116] In some optional embodiments, the cloth pressing member 62 includes a cloth pressing plate 621, and the plate surface of the cloth pressing plate 621 facing the rolling surface forms an arc surface consistent with the shape of the rolling surface.

[0117] Since the rolling surface is cylindrical, its surface is arc-shaped. Constructing the plate surface of the cloth pressing plate 621 into an arc-shaped surface can ensure that when the cloth pressing member 62 contacts the rolling surface, the contact area between the two is maximized, while reducing the gap or space caused by shape mismatch.

[0118] For the water-absorbing member 61, when the material itself is flexible, it is often difficult to completely fit the arc shape of the rolling surface without the assistance of external force. In particular, when the rolling surface is rotating, the flexible water-absorbing member 61 may reduce the cleaning effect because it cannot fit tightly. When the cloth pressing plate 621 is in close contact with the rolling surface, its arc surface can adapt to the shape of the rolling surface, providing a stable and fitting support platform for the water-absorbing member 61. The water-absorbing member 61 is attached to the arc surface of the cloth pressing plate 621, and even if the roller 10 is rotating, the cloth pressing member 62 can always maintain close contact with the rolling surface. In this way, even if the water-absorbing member 61 itself has a certain flexibility, it can achieve efficient fitting and cleaning with the rolling surface with the assistance of the cloth pressing plate 621.

[0119] In the above technical solution, on the one hand, the design of the arc surface ensures the maximum contact area between the water absorbing member 61 and the rolling surface, thereby improving the cleaning efficiency; on the other hand, the stable support of the cloth pressing plate 621 reduces the vibration and deviation of the water absorbing member 61 during the cleaning process, ensuring the stability and consistency of the cleaning quality. In addition, since the water absorbing member 61 can fit the rolling surface more closely, it can more effectively absorb and remove the residue on the roller surface, further improving the cleaning effect.

[0120] In some optional embodiments, combined with Figure 4 The cloth pressing member 62 includes: a cloth 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 cloth pressing plate 621. The water absorbing member 61 is a cloth sheet, which is hung on the hanging shaft 622, and the parts of the cloth sheet located on both sides of the hanging shaft 622 are located on the side of the cloth pressing plate 621 facing the rolling surface.

[0121] In the above technical solution, the water-absorbing member 61 is in the form of a cloth sheet, which is suspended on a hanging shaft 622. The hanging shaft 622 is arranged at an upstream position in the rotation direction of the roller 10, so that the cloth sheet is already in a standby state before entering the rolling area. The cloth sheet is suspended from the hanging shaft 622, and its length and width are suitable to be equal to the size of the cloth pressing plate 621, or slightly larger than the size of the cloth pressing plate 621, so as to ensure that the suspended part can just pass through the cloth pressing plate 621 and be closely attached to the rolling surface.

[0122] This hanging method is easy to replace and the cloth is not easy to fall off. Specifically, since the cloth is hung on the hanging shaft 622, when the cloth needs to be replaced or cleaned, the operator can easily remove it from the hanging shaft 622 and replace it with a new one without going through a complicated disassembly process, thereby improving maintenance efficiency.

[0123] At the same time, the cloth pressing plate 621 plays a fixing role between the cloth piece and the rolling surface. When the cloth piece hangs down and contacts the rolling surface, the cloth pressing plate 621 will press it tightly against the rolling surface to ensure that the cloth piece and the rolling surface are tightly fitted. This design not only improves the cleaning effect, but also prevents the risk of the cloth piece falling off due to squeezing or vibration during the rolling process. Even on the high-speed rolling machine 100, the cloth piece can remain stable, ensuring the continuity and reliability of the cleaning operation.

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

[0125] When the driving member 63 is started, its output end 631 extends and pushes the cloth pressing plate 621, so that the cloth pressing plate 621 can rotate along the rotating shaft 6211 toward the rolling surface, thereby making the cloth pieces on the hanging shaft 622 tightly attached to the rolling surface. This pressing mechanism ensures the stability and reliability of the cloth pieces during the processing.

[0126] When the output end 631 of the driving member 63 is shortened, the pressure on the cloth pressing plate 621 is released, so that the cloth pressing plate 621 can rotate freely outward. In this way, when there is no need to press the cloth, the cloth pressing plate 621 can be away from the roller surface, releasing the cloth, and the operator can easily remove the cloth from the hanging shaft 622, which greatly improves the convenience and efficiency of the operation.

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

[0128] It is worth mentioning that deionized water has higher purity and low surface tension by removing ions and most organic matter in the water, which enables it to more effectively penetrate into the tiny gaps and contaminants on the rolled surface, completely removing impurities such as grease and dust, and helping to maintain the smoothness of the rolled surface.

[0129] At the same time, deionized water will not leave any harmful residues during the cleaning process, nor will it corrode or damage the materials of the rolling surface (such as steel, rubber, etc.). This can ensure the long-term stability and service life of the rolling surface, while avoiding the adverse effects of the cleaning agent residue on the subsequent pole piece 30 rolling process.

[0130] In addition, using deionized water as a cleaning fluid reduces the emission of harmful substances, reduces environmental pollution, and is in line with the environmental protection concept of modern industry.

[0131] In some embodiments not shown in the figures, there are multiple nozzles 51 , which are arranged at intervals 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 liquid (such as deionized water) can be evenly sprayed on the axial direction of the rolling surface, ensuring the consistency of the 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] According to some embodiments of the present invention, the roller cleaning device 40, such as Figure 2 As shown, the liquid adding mechanism 50 further includes: a linear motion mechanism 52, a nozzle 51 and a water pump 54. The linear motion mechanism 52 includes a slider, which 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 through a water pipe 55.

[0134] In the above technical solution, the slider slides freely in the axial direction of the roller 10 along the preset track or guide rail. With this design, the slider will not produce excessive vibration or deviation during the sliding process. Optionally, the sliding of the slider can be driven by various means such as electric, pneumatic or hydraulic. The driving system controls the spraying position of the cleaning liquid in the axial direction of the roller 10 by controlling the moving speed and acceleration of the slider.

[0135] The nozzle 51 is mounted on the slider and moves with the movement of the slider, so that the nozzle 51 can cover the entire axial length of the roller 10 and evenly spray the cleaning liquid on the wider rolling surface without setting multiple nozzles 51 at fixed positions, thereby reducing costs.

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

[0137] In some optional embodiments, the water tank 56 further includes a water level sensor. The water level sensor is connected to the control system, and an alarm is issued when the water level is lower than a preset value. The alarm mode includes but is not limited to: sound alarm, light alarm or sending information to the operator through the control system, so that measures can be taken in time to replenish the cleaning liquid to ensure the continuous operation of the roller cleaning device 40.

[0138] According to some embodiments of the present invention, the roller cleaning device 40, such as Figure 2 As shown, the liquid adding mechanism 50 further includes a drag chain 53 . One end of the drag chain 53 is connected to the linear motion mechanism 52 and the other end is connected to the spray head 51 . Part of the water pipe 55 is arranged on the drag chain 53 .

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

[0140] Part of the water pipe 55 is arranged on the drag chain 53, so that the water pipe 55 can move flexibly together with the nozzle 51, avoiding friction between the water pipe 55 and other components in the liquid adding mechanism 50, and avoiding knotting of the water pipe 55.

[0141] The roller press 100 for the pole piece 30 according to the second embodiment of the present invention comprises: two rollers 10 and at least one roller cleaning device 40. The two rollers 10 are arranged in parallel and spaced apart and rotate in opposite directions, and the gap between the two rollers 10 is used to pass the pole piece 30. The roller cleaning device 40 is the roller cleaning device 40 according to the first embodiment of the present invention.

[0142] In some Figure 8 In the illustrated embodiment, there are two rollers 10 and two roller cleaning devices 40 , and each roller cleaning device 40 is disposed corresponding to the rolling surface of a roller 10 .

[0143] In the above technical solution, two rollers 10 are mounted on the frame 20, and a certain gap is maintained between them, which is reserved for the pole piece 30 to ensure that the pole piece 30 can pass smoothly and be rolled evenly. The two rollers 10 rotate in opposite directions, and this design helps to better pull and compress the pole piece 30.

[0144] By setting the roller cleaning device 40 of the first embodiment of the present invention on the rolling surface of the roller 10, the roller surface slurry can be efficiently removed by using the above-mentioned roller cleaning device 40, while ensuring the cleanliness of the production environment of the pole piece 30 and effective control of costs.

[0145] Reference below Figure 1 - Figure 7 The roller cleaning device 40 according to the embodiment of the present invention is described in detail with a specific embodiment. It is worth noting that the following description is only an exemplary description and is not a specific limitation of the present invention.

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

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

[0148] The liquid adding mechanism 50 is used to add cleaning liquid to the rolling surface cloth of the roller 10 .

[0149] Reference Figure 2The liquid adding mechanism 50 includes: a nozzle 51, a linear motion mechanism 52, a drag 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 arranged on the drag chain 53 .

[0151] The water pump 54 and the nozzle 51 , as well as the water pump 54 and the water tank 56 are connected via water pipes 55 .

[0152] Reference Figure 3 - Figure 4 The soaking mechanism 60 includes: a water absorbing member 61, a cloth pressing member 62 and a driving member 63. The soaking mechanism 60 is used to press the water absorbing member 61 onto the rolling surface. The water absorbing member 61 is used to absorb the cleaning liquid and soak the material on the rolling surface.

[0153] The cloth pressing member 62 comprises a cloth 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 cloth pressing plate 621.

[0154] The plate surface of the cloth pressing plate 621 facing the rolling surface forms an arc surface consistent with the shape of the rolling surface.

[0155] The water absorbing member 61 is a cloth sheet, which is hung on the hanging shaft 622 , and the parts of the cloth sheet located on both sides of the hanging shaft 622 are located on the side of the cloth pressing plate 621 facing the rolling surface.

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

[0157] Reference Figure 5 - Figure 6 The scraping mechanism 70 includes a scraping member 71, a knife seat 72, a knife shaft 73, an elastic member 74, a positioning fastener 75 and a push member 76. The scraping member 71 is used to scrape the liquid on the roller surface.

[0158] The end of the knife shaft 73 is located in the knife seat 72 , and the knife shaft 73 and the knife seat 72 are connected by an elastic member 74 .

[0159] The scraper 71 is disposed on the blade shaft 73 .

[0160] The blade shaft 73 includes a toggle portion 731. The blade shaft 73 is rotatable between a first angle and a second angle, and the blade shaft 73 is configured such that the distance between the scraper 71 and the rolling surface is reduced when the blade shaft 73 is rotated toward the first angle. The positioning fastener 75 is movably disposed on the blade seat 72, and the positioning fastener 75 fixes the angle of the blade shaft 73 when it cooperates with the blade shaft 73.

[0161] The ejector 76 is movably disposed on the knife seat 72 , and is located on a side of the toggle portion 731 away from the rolling surface.

[0162] One end of the push member 76 abuts against the toggle portion 731. When the push member 76 moves toward the rolling surface, it is suitable for pushing the knife shaft 73 to rotate toward the first angle.

[0163] The elastic member 74 is a coil spring to pull the knife shaft 73 toward the second angle.

[0164] There are two wipers 71 , which are arranged at intervals along the circumference of the roller 10 .

[0165] Reference Figure 1 There is one liquid receiving tank 90 , and it is disposed below all the scraping members 71 to receive the liquid scraped by the scraping members 71 .

[0166] The drying device 80 is used to dry the rolled noodles.

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

[0168] The wind knife 81 is suitable for blowing wind toward the rolling surface.

[0169] The fan 82 is connected to the wind knife 81 to transport gas.

[0170] The heater 83 is disposed between the wind knife 81 and the fan 82 .

[0171] Other components of the roller cleaning device 40 according to the embodiment of the present invention, such as the roller press 100 and the like, and operations thereof are known to those skilled in the art and will not be described in detail herein.

[0172] In the description of this specification, the description with reference to the terms "embodiment", "example", etc. 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 present invention. In this specification, the schematic representation of the above terms does 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.

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

Claims

1. A roller cleaning device, characterized in that: include: A liquid adding mechanism, the liquid adding mechanism is used to add cleaning liquid to the rolling surface cloth of the roller; A wetting mechanism, wherein the wetting mechanism comprises a water absorbing member, and the wetting mechanism is used to press the water absorbing member onto the rolling surface, and the water absorbing member is used to absorb the cleaning liquid and wet the material on the rolling surface; A liquid scraping mechanism, the liquid scraping mechanism comprising a liquid scraping member, the liquid scraping member being used to scrape off the liquid on the rolling surface; A liquid receiving tank, the liquid receiving tank is arranged below the liquid scraping member to receive the liquid scraped by the liquid scraping member; Wherein, in the rotation direction of the roller, the liquid adding mechanism, the wetting mechanism and the liquid scraping mechanism are arranged in sequence from upstream to downstream.

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

3. The roller cleaning device according to claim 2, characterized in that: The drying device comprises: An air knife, the air knife being adapted to discharge air toward the rolling surface; A fan is connected to the wind knife to transport gas.

4. The roller cleaning device according to claim 3, characterized in that: The drying device further comprises: a heater arranged between the wind knife and the fan.

5. The roller cleaning device according to claim 1, characterized in that: There are at least two wipers, which are arranged at intervals along the circumference of the roller; There is one liquid receiving tank, which is arranged below all the liquid scraping parts.

6. The roller cleaning device according to claim 1, characterized in that: The scraping mechanism also includes: Knife holder; a knife shaft, the knife shaft being rotatably connected to the knife seat, the scraper being arranged on the knife shaft, the knife shaft being rotatable between a first angle and a second angle, the knife shaft being configured such that the distance between the scraper and the rolling surface is reduced when the knife shaft is rotated toward the first angle; A positioning fastener is movably arranged on the knife seat, and fixes the angle of the knife shaft when the positioning fastener cooperates with the knife shaft.

7. The roller cleaning device according to claim 6, characterized in that: The scraping mechanism further includes an elastic member, wherein two ends of the elastic member are respectively connected to the knife seat and the knife shaft to pull the knife shaft toward the second angle.

8. The roller cleaning device according to claim 7, characterized in that: The elastic member is a coil spring arranged in the knife seat, the end of the knife shaft is located in the knife seat, and the inner end of the coil spring is connected to the knife shaft.

9. The roller cleaning device according to claim 7, characterized in that: The outer peripheral surface of the knife shaft is provided with a toggle portion; The scraping mechanism further comprises: a push-up member, one end of which abuts against the toggle portion, and the push-up member is suitable for being arranged on a side of the toggle portion away from the rolling surface; The ejector is movably disposed on the knife seat, and pushes the knife axis to rotate toward the first angle when moving toward the rolling surface.

10. The roller cleaning device according to any one of claims 1 to 9, characterized in that: The wetting mechanism comprises: A cloth pressing member, wherein at least a portion of the water absorbing member is disposed on a side of the cloth pressing member facing the rolling surface; A driving member, wherein the output end of the driving member is connected to the cloth pressing member, and the driving member drives the cloth pressing member to approach and move away from the rolling surface.

11. The roller cleaning device according to claim 10, characterized in that: The cloth pressing member comprises a cloth pressing plate, and a plate surface of the cloth pressing plate facing the rolling surface forms an arc surface consistent with the shape of the rolling surface.

12. The roller cleaning device according to claim 10, characterized in that: The cloth pressing member comprises: a cloth pressing plate and a hanging shaft, wherein in the rotation direction of the roller, the hanging shaft is located upstream of the cloth pressing plate; The water absorbing member is a cloth sheet, which is hung on the hanging shaft, and the parts of the cloth sheet located on both sides of the hanging shaft are located on the side of the cloth pressing plate facing the rolling surface.

13. The roller cleaning device according to claim 12, characterized in that: The cloth pressing plate is rotatably connected to the output end of the driving member; And the rotating shaft of the cloth pressing plate is located at an end of the cloth pressing plate away from the hanging shaft.

14. The roller cleaning device according to any one of claims 1 to 9, characterized in that: The liquid adding mechanism has a nozzle for spraying water toward the rolling surface, and the cleaning liquid is deionized water.

15. The roller cleaning device according to claim 14, characterized in that: There are multiple nozzles, which are arranged at intervals along the axial direction of the roller.

16. The roller cleaning device according to any one of claims 1 to 9, characterized in that: The liquid adding mechanism also includes: A linear motion mechanism, the linear motion mechanism comprising a slider, the slider sliding along the axial direction of the roller; A nozzle, the nozzle being mounted on the slider; A water pump is connected to the nozzle through a water pipe.

17. The roller cleaning device according to claim 16, characterized in that: The liquid adding mechanism further comprises: 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 part of the water pipe is arranged on the drag chain.

18. A roller press for pole pieces, characterized in that: include: Two rollers, the two rollers are arranged in parallel and spaced apart and rotate in opposite directions, and the gap between the two rollers is used for passing the pole piece; At least one of the roller cleaning devices is a roller cleaning device according to any one of claims 1 to 17, and each of the roller cleaning devices is arranged corresponding to the rolling surface of one of the rollers.

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