Rolling device

Abstract

The embodiment of the present application provides a kind of roller press device, and roller press device includes press roller and cleaning mechanism, press roller is used to roll workpiece.Cleaning mechanism includes scraping component and wiping component, scraping component and wiping component are arranged along the circumference of press roller, scraping component is spaced apart from press roller, and scraping component is used to scrape particle on the outer peripheral wall of press roller, wiping component is attached to press roller, and wiping component is used to wipe the outer peripheral wall of press roller.Through setting scraping component and wiping component in the circumference of press roller, scraping component can scrape particle attached to the outer peripheral wall of press roller, and wiping component can wipe the outer peripheral wall of press roller, so as to realize the removal of particle with larger particle size and powder material with smaller particle size on the outer peripheral wall of press roller, improve the cleaning effect of press roller, reduce the influence of residue (particle with larger particle size and powder material with smaller particle size) on the outer peripheral wall of press roller on workpiece during the process that press roller rolls workpiece, and improve the production quality of workpiece.

Description

Technical Field

[0001] This application relates to the field of roller pressing equipment technology, and more particularly to a roller pressing device. Background Technology

[0002] In roll forming technology, workpieces can be molded into the desired shape, surface flatness, and density through roll forming. During roll forming, the outer peripheral wall of the roller presses against the workpiece, easily causing material that detaches from the workpiece to adhere, thus affecting the flatness of the roller and consequently the flatness of the workpiece, ultimately impacting the production quality. Taking an electrode as an example, the electrode is rolled along its thickness direction to compact the active material layers on both sides of the current collector. However, during the roll forming process, the active material layer detached from the electrode easily forms large particles and small powder particles on the outer peripheral wall of the roller. Large particles are difficult to wipe away, and small powder particles are difficult to scrape off, affecting the production quality of the electrode. Utility Model Content

[0003] This application provides a roller pressing device designed to improve the production quality of workpieces.

[0004] This application provides a roller pressing device, including a pressure roller and a cleaning mechanism; the pressure roller is used to press workpieces; the cleaning mechanism includes a scraping component and a wiping component, which are arranged circumferentially along the pressure roller. The scraping component is spaced apart from the pressure roller, and the scraping component is used to scrape off particles on the outer peripheral wall of the pressure roller. The wiping component is attached to the pressure roller and is used to wipe the outer peripheral wall of the pressure roller.

[0005] In the above technical solution, by circumferentially arranging a scraping component and a wiping component on the pressure roller, the scraping component can scrape off particles adhering to the outer peripheral wall of the pressure roller, and the wiping component can wipe the outer peripheral wall of the pressure roller, thereby achieving the removal of large particles and small powder materials on the outer peripheral wall of the pressure roller, improving the cleaning effect of the pressure roller, reducing the impact of residues (large particles and small powder materials) on the workpiece during the pressure roller pressing process, and improving the production quality of the workpiece.

[0006] In some embodiments, the scraping assembly includes a first collection box, a scraper, and a first negative pressure tube. The first collection box has a first collection chamber inside, and a first collection port communicating with the first collection chamber is formed at one end of the first collection box near the pressure roller. The scraper is disposed at the first collection port and spaced apart from the pressure roller. The first collection chamber is used to collect particles scraped off the pressure roller by the scraper. The first negative pressure tube is connected to the first collection box, and its lumen communicates with the first collection chamber. By providing the first collection chamber and placing the scraper at the first collection port of the first collection chamber, particles scraped off the pressure roller by the scraper can enter the first collection chamber through the first collection port, thereby collecting the particles detached from the pressure roller in the first collection box and reducing the risk of contaminating the workpiece with the detached particles. By providing the lumen of the first negative pressure tube communicating with the first collection chamber, the first negative pressure tube can create a negative pressure within the first collection chamber, allowing particles in the first collection chamber to be discharged through the first negative pressure tube, reducing the risk of the first collection chamber becoming clogged due to excessive particle accumulation.

[0007] In some embodiments, the scraping assembly includes a second collection box and a second negative pressure tube. The second collection box has a second collection chamber inside, and a second collection port communicating with the second collection chamber is formed on the top of the second collection box, located below the scraper. The second negative pressure tube is connected to the second collection box, and its lumen communicates with the second collection chamber. By positioning the second collection port of the second collection box below the scraper, some particles scraped off by the scraper can fall into the second collection chamber through the second collection port, thereby further reducing the risk of particulate matter contaminating the workpiece. By configuring the lumen of the second negative pressure tube to communicate with the second collection chamber, the second negative pressure tube can create a negative pressure within the second collection chamber, allowing particles in the second collection chamber to be discharged through the second negative pressure tube, reducing the risk of the second collection chamber becoming clogged due to excessive particle accumulation.

[0008] In some embodiments, the first collection box is provided with a first communication channel communicating with the first collection chamber, and the second collection box is provided with a second communication channel communicating with the second collection chamber. The first communication channel and the second communication channel are connected. By providing the first communication channel and the second communication channel, particulate matter in the first collection chamber can enter the second collection chamber through the first communication channel and the second communication channel, and be discharged through the second negative pressure pipe, which can reduce the amount of piping and lower the installation cost of the scraping assembly.

[0009] In some embodiments, the wiping assembly includes a first roller, a second roller, and a first cleaning belt. The first roller and the second roller are spaced apart circumferentially along the pressure roller. The first cleaning belt is wound around the first roller and the second roller, with the portion of the first cleaning belt between the first roller and the second roller abutting against the outer peripheral wall of the pressure roller. The rotation direction of the first roller, the rotation direction of the second roller, and the rotation direction of the pressure roller are the same. By setting the portion of the first cleaning belt between the first roller and the second roller to abut against the outer peripheral wall of the pressure roller, on the one hand, the risk of damage caused by direct contact between the first roller and the second roller and the pressure roller can be reduced; on the other hand, the contact area of ​​the first cleaning belt against the outer peripheral wall of the pressure roller can be increased, thereby improving the cleaning effect of the first cleaning belt on the outer peripheral wall of the pressure roller. When the first roller, the second roller, and the pressure roller all rotate, the first cleaning belt can move towards the outer peripheral wall of the pressure roller that is in contact with it, thereby improving the cleaning effect of the first cleaning belt on wiping the outer peripheral wall of the pressure roller.

[0010] In some embodiments, the wiping assembly includes a spray member having a spray nozzle for spraying cleaning agent onto a first cleaning belt, the spray nozzle being disposed toward the portion of the first cleaning belt located between a first roller and a second roller. By distributing the spray nozzle toward the portion of the first cleaning belt located between the first roller and the second roller, the spray nozzle can spray cleaning agent onto the portion of the first cleaning belt located between the first roller and the second roller, thus wiping the pressure rollers of the first cleaning belt with the sprayed cleaning agent, thereby improving the cleaning effect of the first cleaning belt on the pressure rollers.

[0011] In some embodiments, the wiping assembly includes a mounting frame, on which a first roller and / or a second roller are mounted, and a spray element is movably disposed on the mounting frame along the axial direction of the pressure roller. This makes the position of the spray element relative to the first and second rollers more stable, and allows the spray element to spray cleaning agent onto the first cleaning belt during its axial reciprocating movement along the pressure roller, enabling different areas of the first cleaning belt to be immersed in the cleaning agent, thereby improving the cleaning effect of the first cleaning belt on the outer peripheral wall of the pressure roller.

[0012] In some embodiments, the cleaning mechanism includes a cleaning component, a scraping component, and a wiping component arranged circumferentially along the pressure roller. The cleaning component is attached to the pressure roller and is used to clean the cleaning agent on the outer peripheral wall of the pressure roller. By cleaning the cleaning agent on the outer peripheral wall of the pressure roller with the cleaning component, the risk of residual cleaning agent on the outer peripheral wall of the pressure roller contaminating the workpiece can be reduced, and the cleaning effect of the cleaning mechanism on the outer peripheral wall of the pressure roller can be improved.

[0013] In some embodiments, the cleaning assembly includes a third roller, a fourth roller, and a second cleaning belt. The third and fourth rollers are spaced apart circumferentially along the pressure roller. The second cleaning belt is wound around the third and fourth rollers, with the portion of the second cleaning belt between the third and fourth rollers abutting against the outer peripheral wall of the pressure roller. The rotation directions of the third roller, the fourth roller, and the pressure roller are the same. By setting the portion of the second cleaning belt between the third and fourth rollers to abut against the outer peripheral wall of the pressure roller, the risk of damage from direct contact between the third and fourth rollers and the pressure roller can be reduced. Furthermore, the contact area of ​​the second cleaning belt against the outer peripheral wall of the pressure roller can be increased, thereby improving the cleaning effect of the second cleaning belt on the outer peripheral wall of the pressure roller. When the third roller, the fourth roller, and the pressure roller all rotate, the second cleaning belt can move towards the outer peripheral wall of the pressure roller in contact with it, thereby improving the cleaning effect of the cleaning agent on the outer peripheral wall of the pressure roller.

[0014] In some embodiments, the rolling device includes two pressure rollers spaced apart, which cooperate to roll and press the workpiece. Each pressure roller is provided with at least one cleaning mechanism. In this way, both pressure rollers can be cleaned by the cleaning mechanism, thereby improving the self-cleaning capability of the rolling device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the roller pressing device provided in some embodiments of this application; Figure 2 Schematic diagram of the structure of the roller pressing device provided in some embodiments of this application; Figure 3 This is a schematic diagram of the structure of the scraping assembly provided in some embodiments of this application; Figure 4 This is a schematic diagram of the structure of a scraping component provided in some embodiments of this application; Figure 5 This is a schematic diagram of the structure of the scraping component provided in some embodiments of this application; Figure 6 This is a schematic diagram of the structure of the wiping assembly provided in some embodiments of this application; Figure 7 This is a schematic diagram of the structure of a wiping assembly provided in some embodiments of this application; Figure 8 This is a schematic diagram of the structure of the roller pressing device provided in some embodiments of this application; Figure 9 This is a schematic diagram of the structure of a roller pressing device provided in some other embodiments of this application.

[0016] Explanation of reference numerals in the attached figures: 1-Pressure roller; 11-Outer peripheral wall; 2-Cleaning mechanism; 21-Scraping assembly; 211-First collection box; 2111-First collection chamber; 2112-First collection port; 2113-First connecting channel; 212-Scraper; 213-First negative pressure pipe; 214-Second collection box; 2141-Second collection chamber; 2142-Second collection port; 2143-Second connecting channel; 215-Second negative pressure pipe; 22-Wiping assembly; 221-First roller; 222-Second roller; 223-First cleaning belt; 224-Spraying component; 225-Mounting bracket; 226-Slide bar; 23-Cleaning assembly; 231-Third roller; 232-Fourth roller; 233-Second cleaning belt; 10-Roller pressing device; 20-Electrode sheet; X-Transmission direction of electrode sheet; R-Rotation direction of pressure roller. Detailed Implementation

[0017] To make the technical problems, technical solutions, and beneficial effects solved by this application clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0018] In roll forming technology, workpieces can be rolled to achieve the desired shape and density. Workpieces can be metal sheets, battery cells, etc. The metal sheets can be steel plates, aluminum plates, aluminum alloy plates, copper plates, copper alloy plates, etc.

[0019] Taking the workpiece as an electrode as an example, the electrode includes a current collector and two layers of surface-active material disposed on the current collector along its thickness direction. By pressing the active material layers with a pressure roller along the thickness direction of the electrode, the active material layers can be compacted onto the current collector.

[0020] During the rolling process of electrode sheets, some active material particles easily adhere to the outer peripheral wall of the pressure roller. These particles protrude from the outer peripheral wall and adhere tightly, making them difficult to remove by wiping. The outer peripheral wall of the pressure roller also easily picks up small powder materials such as carbon powder during the rolling of the active material layer. These powder materials adhere to the surface of the outer peripheral wall of the pressure roller and are difficult to clean by scraping. Therefore, the particles and powder materials on the pressure roller are difficult to remove using a single cleaning method, increasing the cleaning difficulty of the pressure roller and affecting the cleaning effect.

[0021] Therefore, to improve the cleaning effect of the pressure roller, this application provides a roller pressing device, including a pressure roller and a cleaning mechanism. The pressure roller is used to press workpieces. The cleaning mechanism includes a scraping component and a wiping component, which are arranged circumferentially along the pressure roller. The scraping component is spaced apart from the pressure roller and is used to scrape off particles on the outer peripheral wall of the pressure roller. The wiping component is attached to the pressure roller and is used to wipe the outer peripheral wall of the pressure roller. Such a roller pressing device can reduce the impact of residues (large particles and small powder materials) on the workpiece during the pressing process, thereby improving the production quality of the workpiece.

[0022] The following description uses the workpiece as an example and refers to the attached diagram to explain the roller pressing device.

[0023] Please refer to Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of the roller pressing device 10 provided in some embodiments of this application; Figure 2 This is a schematic diagram of the structure of a roller pressing device 10 provided in some embodiments of this application. Embodiments of this application provide a roller pressing device 10, including a pressure roller 1 and a cleaning mechanism 2. The pressure roller 1 is used to press electrode sheets 20. The cleaning mechanism 2 includes a scraping component 21 and a wiping component 22, which are arranged circumferentially along the pressure roller 1. The scraping component 21 is spaced apart from the pressure roller 1. The scraping component 21 is used to scrape off particles on the outer peripheral wall 11 of the pressure roller 1, and the wiping component 22 is attached to the pressure roller 1 and used to wipe the outer peripheral wall 11 of the pressure roller 1.

[0024] There can be multiple pressure rollers 1, arranged in pairs, with each pair of pressure rollers 1 working in conjunction with the pressure electrode plate 20. It is possible that only one pressure roller 1 is equipped with a cleaning mechanism 2, or that multiple pressure rollers 1 are each equipped with a cleaning mechanism 2. Among the pressure rollers 1 equipped with cleaning mechanisms 2, the number of cleaning mechanisms 2 corresponding to each pressure roller 1 can be one or multiple.

[0025] A distance exists between the scraping component 21 and the pressure roller 1, and the scraping component 21 does not contact the outer peripheral wall 11 of the pressure roller 1, so that the scraping component 21 and the pressure roller 1 are spaced apart. A gap is formed between the scraping component 21 and the pressure roller 1, and the scraping component 21 does not contact the outer peripheral wall 11 of the pressure roller 1. Particles on the outer peripheral wall 11 of the pressure roller 1 are blocked by the scraping component 21 as they pass through the gap, thereby falling off the pressure roller 1 and achieving the scraping of particles. The positions of the scraping component 21 and the pressure roller 1 can be relatively fixed so that the width of the gap is fixed; or the position of the scraping component 21 relative to the pressure roller 1 can be adjusted to adjust the width of the gap. The scraping component 21 can include a protrusion that contacts the particles to achieve the scraping of particles; or the scraping component 21 can include a scraper 212 that contacts the particles to achieve the scraping of particles.

[0026] The wiping component 22 is attached to the outer peripheral wall 11 of the pressure roller 1. When the pressure roller 1 and the wiping component 22 rotate relative to each other, the wiping component 22 wipes the outer peripheral wall 11 of the pressure roller 1. The wiping component 22 can clean the pressure roller 1 by wiping the outer peripheral wall 11 with a wiping block, the wiping block being made of rubber; or the wiping component 22 can clean the pressure roller 1 by wiping the outer peripheral wall 11 with a wiping belt, the wiping belt being made of non-woven fabric.

[0027] In this embodiment, by circumferentially arranging a scraping component 21 and a wiping component 22 on the pressure roller 1, the scraping component 21 can scrape off particles attached to the outer peripheral wall 11 of the pressure roller 1, and the wiping component 22 can wipe the outer peripheral wall 11 of the pressure roller 1, thereby achieving the removal of large particles and small powder materials on the outer peripheral wall 11 of the pressure roller 1, improving the cleaning effect of the pressure roller 1, reducing the impact of residues (large particles and small powder materials) on the outer peripheral wall 11 of the pressure roller 1 on the electrode 20 during the pressing process of the pressure roller 1, and improving the production quality of the electrode 20.

[0028] In some embodiments, the roller pressing device 10 may further include a support, on which both the pressure roller 1 and the cleaning mechanism 2 are mounted.

[0029] In some embodiments, after the pressure roller 1 presses the electrode sheet 20, the scraping component 21 first scrapes off the particles on the outer peripheral wall 11 of the pressure roller 1, and then the wiping component 22 wipes the outer peripheral wall 11 of the pressure roller 1; alternatively, after the pressure roller 1 presses the electrode sheet 20, the wiping component 22 first wipes the outer peripheral wall 11 of the pressure roller 1, and then the scraping component 21 scrapes off the particles on the outer peripheral wall 11 of the pressure roller 1. For example, as... Figure 2As shown, the tangential direction of the electrode's transmission direction X and the rotation direction R of the pressure roller are the same. After the pressure roller 1 presses the electrode 20, the particles on the outer peripheral wall 11 of the pressure roller 1 are scraped off by the scraping component 21, and then the outer peripheral wall 11 of the pressure roller 1 is wiped off by the wiping component 22.

[0030] In some embodiments, please refer to Figure 3 , Figure 3 This is a schematic diagram of the structure of a scraping assembly 21 provided in some embodiments of this application. The scraping assembly 21 includes a first collection box 211 and a scraper 212. The first collection box 211 has a first collection cavity 2111 inside, and a first collection port 2112 communicating with the first collection cavity 2111 is formed at one end of the first collection box 2111 near the pressure roller 1. The scraper 212 is disposed at the first collection port 2112 and spaced apart from the pressure roller 1. The first collection cavity 2111 is used to collect the particles scraped off from the pressure roller 1 by the scraper 212.

[0031] The first collecting chamber 2111 is located inside the first collecting box 211, extending through the end of the first collecting box 211 facing the pressure roller 1, and forming a first collecting opening 2112 on the first collecting box 211. The first collecting chamber 2111 has an inner bottom surface and an inner top surface, which are arranged opposite to each other, with the inner top surface located above the inner bottom surface. Both the inner bottom surface and the inner top surface extend to the first collecting opening 2112. Alternatively, the upper surface of the scraper 212 can be flush with the inner bottom surface of the first collecting chamber 2111, allowing particles scraped off by the scraper 212 to be guided into the first collecting chamber 2111 from the upper surface of the scraper 212; or the lower surface of the scraper 212 can be flush with the inner top surface of the first collecting chamber 2111, with the inner bottom surface of the first collecting chamber 2111 located below the scraper 212 to receive particles scraped off by the scraper 212. The scraper 212 and the first collection box 211 can be set separately and connected; for example, the scraper 212 and the first collection box 211 can be welded together; or the scraper 212 and the first collection box 211 can be integrally formed; for example, the scraper 212 and the first collection box 211 can be integrally cast.

[0032] The end of the scraper 212 facing away from the first collection port 2112 is the blade edge, which is positioned towards the pressure roller 1, and there is a distance between the blade edge and the pressure roller 1 so that the scraper 212 and the pressure roller 1 are spaced apart. In embodiments where there is a gap between the scraping assembly 21 and the pressure roller 1, the distance between the blade edge of the scraper 212 and the pressure roller 1 is the width of the gap.

[0033] In this embodiment, by setting a first collection chamber 2111 and placing a scraper 212 at the first collection port 2112 of the first collection chamber 2111, the particles scraped off from the pressure roller 1 by the scraper 212 can enter the first collection chamber 2111 through the first collection port 2112, thereby collecting the particles that have escaped from the pressure roller 1 in the first collection box 211, reducing the risk of the particles escaping from the pressure roller 1 contaminating the electrode 20.

[0034] In some embodiments, please continue to refer to Figure 3 The scraping assembly 21 includes a first negative pressure tube 213, which is connected to a first collection box 211, and the lumen of the first negative pressure tube 213 is in communication with the first collection chamber 2111.

[0035] The first negative pressure pipe 213 and the first collection box 211 can be integrally formed; for example, the first negative pressure pipe 213 and the first collection box 211 can be integrally cast. Alternatively, the first negative pressure pipe 213 and the first collection box 211 can be separately arranged and connected; for example, the first negative pressure pipe 213 and the first collection box 211 can be welded together. A negative pressure device can be connected to the side of the first negative pressure pipe 213 away from the first collection box 211 to form a negative pressure in the first negative pressure pipe 213 and the first collection chamber 2111. The negative pressure device can be a fan, a vacuum pump, etc.

[0036] In this embodiment, by setting the lumen of the first negative pressure pipe 213 to be connected to the first collection chamber 2111, the first negative pressure pipe 213 can form a negative pressure in the first collection chamber 2111, and the particulate matter in the first collection chamber 2111 can be discharged through the first negative pressure pipe 213, reducing the risk of the first collection chamber 2111 being blocked due to excessive particulate matter.

[0037] In some embodiments, please refer to Figure 4 , Figure 4 This is a schematic diagram of the structure of a scraping component 21 provided in some embodiments of this application. The scraping component 21 includes a second collection box 214, a second collection cavity 2141 is provided inside the second collection box 214, and a second collection port 2142 communicating with the second collection cavity 2141 is formed on the top of the second collection box 214. The second collection port 2142 is located below the scraper 212.

[0038] The second collection port 2142 is located on the top wall of the second collection box 214, and the scraper 212 is located above the second collection port 2142. The particles scraped off by the scraper 212 can fall into the second collection chamber 2141 through the second collection port 2142.

[0039] In the projection plane perpendicular to the vertical, the orthographic projection of the blade of scraper 212 is located within the second collection port 2142.

[0040] In this embodiment, by placing the second collection port 2142 of the second collection box 214 below the scraper 212, some of the particles scraped off by the scraper 212 can fall into the second collection chamber 2141 through the second collection port 2142, thereby further reducing the risk of particulate matter contaminating the electrode 20.

[0041] In some embodiments, please continue to refer to Figure 4 The scraping assembly 21 includes a second negative pressure tube 215, which is connected to a second collection box 214, and the lumen of the second negative pressure tube 215 is in communication with the second collection chamber 2141.

[0042] The second negative pressure pipe 215 and the second collection box 214 can be integrally formed; for example, the second negative pressure pipe 215 and the second collection box 214 can be integrally cast. Alternatively, the second negative pressure pipe 215 and the second collection box 214 can be separately arranged and connected; for example, the second negative pressure pipe 215 and the second collection box 214 can be welded together. A negative pressure device can be connected to the side of the second negative pressure pipe 215 away from the second collection box 214 to create negative pressure within the second negative pressure pipe 215 and the second collection chamber 2141. The negative pressure device can be a fan, a vacuum pump, etc.

[0043] In this embodiment, by setting the lumen of the second negative pressure pipe to be connected to the second collection chamber 2141, the second negative pressure pipe 215 can form a negative pressure in the second collection chamber 2141, and the particulate matter in the second collection chamber 2141 can be discharged through the second negative pressure pipe 215, reducing the risk of the second collection chamber 2141 being blocked due to excessive particulate matter.

[0044] In some embodiments, please refer to Figure 5 , Figure 5 This is a schematic diagram of the structure of the scraping component 21 provided in some embodiments of this application. The first collection box 211 is provided with a first communication channel 2113 communicating with the first collection cavity 2111, and the second collection box 214 is provided with a second communication channel 2143 communicating with the second collection cavity 2141. The first communication channel 2113 and the second communication channel 2143 are connected.

[0045] The first collection chamber 2111 is connected to the second collection chamber 2141 via the first connecting channel 2113 and the second connecting channel 2143. The second collection chamber 2141 is connected to the lumen of the second negative pressure pipe 215. The second negative pressure pipe 215 can create negative pressure in the first collection chamber 2111 and the second collection chamber 2141. Particles in the first collection chamber 2111 can enter the second collection chamber 2141 through the first connecting channel 2113 and the second connecting channel 2143, and be discharged from the scraping assembly 21 through the second negative pressure pipe 215.

[0046] In this embodiment, by setting the first connecting channel 2113 and the second connecting channel 2143 to connect, the particulate matter in the first collecting chamber 2111 can enter the second collecting chamber 2141 through the first connecting channel 2113 and the second connecting channel 2143, and be discharged through the second negative pressure pipe 215, which can reduce the setting of pipelines and reduce the setting cost of the scraping component 21.

[0047] In some embodiments, please continue to refer to Figure 1 and Figure 2 And further refer to Figure 6 , Figure 6 This is a schematic diagram of the structure of the wiping assembly 22 provided in some embodiments of this application. The wiping assembly 22 includes a first roller 221, a second roller 222, and a first cleaning belt 223. The first roller 221 and the second roller 222 are spaced apart along the circumference of the pressure roller 1. The first cleaning belt 223 is wound around the first roller 221 and the second roller 222, and the portion of the first cleaning belt 223 located between the first roller 221 and the second roller 222 abuts against the outer peripheral wall 11 of the pressure roller 1.

[0048] Alternatively, the first roller 221 and the second roller 222 can be driven rollers. The wiping assembly 22 also includes an unwinding roller, a take-up roller, and a drive member. The first cleaning belt 223 is sequentially wound around the unwinding roller, the second roller 222, the first roller 221, and the take-up roller. The drive member drives the take-up roller to rotate, thereby pulling the first cleaning belt 223 to move. Alternatively, the first roller 221 can be the drive roller, and the second roller 222 can be the driven roller. The wiping assembly 22 also includes a drive member. The drive member drives the first roller 221 to rotate, thereby causing the first cleaning belt 223 unwound by the second roller 222 to be wound back onto the first roller 221.

[0049] The first roller 221 and the second roller 222 are both spaced apart from the pressure roller 1. The portion of the pressure roller 1 located between the first roller 221 and the second roller 222 protrudes between the first roller 221 and the second roller 222, so that the portion of the first cleaning belt 223 located between the first roller 221 and the second roller 222 can abut against the outer peripheral wall 11 of the pressure roller 1.

[0050] In this embodiment, by setting the portion of the first cleaning belt 223 located between the first roller 221 and the second roller 222 to abut against the outer peripheral wall 11 of the pressure roller 1, on the one hand, the risk of damage caused by the first roller 221 and the second roller 222 directly contacting the pressure roller 1 can be reduced; on the other hand, the contact area of ​​the first cleaning belt 223 against the outer peripheral wall 11 of the pressure roller 1 can be increased, thereby improving the cleaning effect of the first cleaning belt 223 on the outer peripheral wall 11 of the pressure roller 1.

[0051] In some embodiments, the rotation direction of the first roller 221, the rotation direction of the second roller 222, and the rotation direction R of the pressure roller are the same.

[0052] The first roller 221 and the second roller 222 are used to drive the first cleaning belt 223, so the driving directions of the first roller 221 and the second roller 222 are the same. The driving direction of the pressure roller 1 is the same as the driving direction of the first roller 221 and the second roller 222, so that the rotation direction of the portion of the outer peripheral wall 11 of the pressure roller 1 located between the first roller 221 and the second roller 222 is opposite to the driving direction of the portion of the first cleaning belt 223 located between the first roller 221 and the second roller 222, thereby improving the wiping effect of the first cleaning belt 223 on the outer peripheral wall 11 of the pressure roller 1.

[0053] In this embodiment, when the first roller 221, the second roller 222 and the pressure roller 1 are all rotating, the first cleaning belt 223 can move towards the outer peripheral wall 11 of the pressure roller 1 that is in contact with the first cleaning belt 223, thereby improving the cleaning effect of the first cleaning belt 223 wiping the outer peripheral wall 11 of the pressure roller 1.

[0054] In some embodiments, please continue to refer to Figure 1 , Figure 2 and Figure 6 The wiping assembly 22 includes a spray member 224 having a spray nozzle for spraying cleaning agent onto the first cleaning belt 223, the spray nozzle being disposed toward the portion of the first cleaning belt 223 located between the first roller 221 and the second roller 222.

[0055] The spray element 224 may have only one spray nozzle, or it may have multiple spray nozzles. In embodiments with multiple spray nozzles, the multiple spray nozzles are spaced apart along the width direction of the first cleaning belt 223. The spray element 224 may be disposed between the first roller 221 and the second roller 222.

[0056] In this embodiment, by setting the spray nozzle toward the portion of the first cleaning belt 223 located between the first roller 221 and the second roller 222, the spray nozzle can spray cleaning agent onto the portion of the first cleaning belt 223 located between the first roller 221 and the second roller 222. The portion of the first cleaning belt 223 sprayed with cleaning agent wipes the pressure roller 1, thereby improving the cleaning effect of the first cleaning belt 223 on the pressure roller 1.

[0057] In some embodiments, please refer to Figure 7 , Figure 7 This is a schematic diagram of the structure of a wiping assembly 22 provided in some embodiments of this application. The wiping assembly 22 includes a mounting frame 225, a first roller 221 and / or a second roller 222 mounted on the mounting frame 225, and a spray element 224 disposed on the mounting frame 225 in a reciprocating manner along the axial direction of the pressure roller 1.

[0058] The mounting frame 225 may have only the first roller 221 mounted on it; only the second roller 222 mounted on it; or both the first roller 221 and the second roller 222 mounted on it. A guide may be provided on the mounting frame 225, and the spraying component 224 is movably mounted on the guide, allowing the spraying component 224 to be reciprocally mounted on the mounting frame 225 along the axial direction of the pressure roller 1. The guide may be a slide bar 226, a groove, etc. For example, the mounting frame 225 may have a slide bar 226 extending along the axial direction of the pressure roller 1. The wiping assembly 22 also includes a linear motor connected to the spraying component 224, and the linear motor is movably mounted on the slide bar 226 along its extension direction.

[0059] In an embodiment where the pressure roller 1 device includes a support, the support includes a mounting bracket 225.

[0060] In this embodiment, the position of the spraying component relative to the first roller 221 and the second roller 222 is more stable, and the spraying component 224 can spray cleaning agent onto the first cleaning belt 223 during the process of reciprocating along the axial direction of the pressure roller 1, so that different areas of the first cleaning belt 223 can be immersed in cleaning agent, thereby improving the cleaning effect of the first cleaning belt 223 on the outer peripheral wall 11 of the pressure roller 1.

[0061] In some embodiments, please refer to Figure 8 , Figure 8 This is a schematic diagram of the structure of the roller pressing device 10 provided in some embodiments of this application. The cleaning mechanism 2 includes a cleaning component 23, a scraping component 21 and a wiping component 22 arranged circumferentially along the pressure roller 1. The cleaning component 23 is attached to the pressure roller 1 and is used to clean the cleaning agent on the outer peripheral wall 11 of the pressure roller 1.

[0062] The pressure roller 1 can be configured to first scrape off the particles on its outer peripheral wall 11 by the scraping component 21 after pressing the electrode 20, then wipe the outer peripheral wall 11 of the pressure roller 1 by the wiping component 22, and finally wipe the outer peripheral wall 11 of the pressure roller 1 by the cleaning component 23; or the pressure roller 1 can be configured to first scrape off the particles on its outer peripheral wall 11 by the scraping component 21 after pressing the electrode 20, then wipe the outer peripheral wall 11 of the pressure roller 1 by the cleaning component 23, and finally wipe the outer peripheral wall 11 of the pressure roller 1 by the wiping component 22; or the pressure roller 1 can be configured to first wipe the outer peripheral wall 11 of the pressure roller 1 by the wiping component 22 after pressing the electrode 20, then scrape off the particles on its outer peripheral wall 11 by the scraping component 21, and finally wipe the outer peripheral wall 11 of the pressure roller 1 by the cleaning component 23.

[0063] After the wiping component 22 wipes the pressure roller 1, the cleaning agent provided by the wiping component 22 may remain on the pressure roller 1. The cleaning component 23 can wipe the outer peripheral wall 11 of the pressure roller 1 to further clean the pressure roller 1. The cleaning component 23 can clean the pressure roller 1 by wiping the outer peripheral wall 11 with a wiping block, the wiping block being made of rubber; or the cleaning component 23 can clean the pressure roller 1 by wiping the outer peripheral wall 11 with a wiping strip, the wiping strip being made of non-woven fabric.

[0064] In this embodiment, the cleaning agent on the outer peripheral wall 11 of the pressure roller 1 is cleaned by the cleaning component 23, which can reduce the risk of residual cleaning agent on the outer peripheral wall 11 of the pressure roller 1 contaminating the electrode sheet 20 and improve the cleaning effect of the cleaning mechanism 2 on the outer peripheral wall 11 of the pressure roller 1.

[0065] In some embodiments, please continue to refer to Figure 8 The cleaning assembly 23 includes a third roller 231, a fourth roller 232, and a second cleaning belt 233. The third roller 231 and the fourth roller 232 are spaced apart along the circumference of the pressure roller 1. The second cleaning belt 233 is wound around the third roller 231 and the fourth roller 232, and the portion of the second cleaning belt 233 located between the third roller 231 and the fourth roller 232 abuts against the outer peripheral wall 11 of the pressure roller 1.

[0066] Alternatively, the third roller 231 and the fourth roller 232 can be driven rollers. The cleaning assembly 23 also includes an unwinding roller, a take-up roller, and a drive member. The second cleaning belt 233 is sequentially wound around the unwinding roller, the fourth roller 232, the third roller 231, and the take-up roller. The drive member drives the take-up roller to rotate, thereby pulling the second cleaning belt 233 to move. Alternatively, the third roller 231 can be the drive roller, and the fourth roller 232 can be the driven roller. The wiping assembly 22 also includes a drive member. The drive member drives the third roller 231 to rotate, thereby causing the second cleaning belt 233 unwound by the fourth roller 232 to be wound back onto the third roller 231.

[0067] The third roller 231 and the fourth roller 232 are both spaced apart from the pressure roller 1. The portion of the pressure roller 1 located between the third roller 231 and the fourth roller 232 protrudes between the third roller 231 and the fourth roller 232, so that the portion of the second cleaning belt 233 located between the third roller 231 and the fourth roller 232 can abut against the outer peripheral wall 11 of the pressure roller 1.

[0068] In this embodiment, by setting the portion of the second cleaning belt 233 located between the third roller 231 and the fourth roller 232 to abut against the outer peripheral wall 11 of the pressure roller 1, on the one hand, the risk of damage caused by the third roller 231 and the fourth roller 232 directly contacting the pressure roller 1 can be reduced; on the other hand, the contact area of ​​the second cleaning belt 233 against the outer peripheral wall 11 of the pressure roller 1 can be increased, thereby improving the cleaning effect of the second cleaning belt 233 on the outer peripheral wall 11 of the pressure roller 1.

[0069] In some embodiments, the rotation direction of the third roller 231, the rotation direction of the fourth roller 232, and the rotation direction R of the pressure roller are the same.

[0070] The third roller 231 and the fourth roller 232 are used to drive the second cleaning belt 233, so the driving direction of the third roller 231 and the fourth roller 232 is the same. The driving direction of the pressure roller 1 is the same as the driving direction of the third roller 231 and the fourth roller 232, so that the rotation direction of the portion of the outer peripheral wall 11 of the pressure roller 1 located between the third roller 231 and the fourth roller 232 is opposite to the driving direction of the portion of the second cleaning belt 233 located between the third roller 231 and the fourth roller 232, thereby improving the wiping effect of the second cleaning belt 233 on the cleaning agent on the outer peripheral wall 11 of the pressure roller 1.

[0071] In this embodiment, when the third roller 231, the fourth roller 232 and the pressure roller 1 are all rotating, the second cleaning belt 233 can move towards the outer peripheral wall 11 of the pressure roller 1 that is in contact with the second cleaning belt 233, thereby improving the cleaning effect of the second cleaning belt 233 on the cleaning agent on the outer peripheral wall 11 of the pressure roller 1.

[0072] In some embodiments, please refer to Figure 9 , Figure 9 The following is a schematic diagram of the structure of the roller pressing device 10 provided in some other embodiments of this application. The roller pressing device 10 includes two pressure rollers 1, which are arranged at intervals. The two pressure rollers 1 are used to cooperate in pressing the electrode sheet 20. Each pressure roller 1 is provided with at least one cleaning mechanism 2.

[0073] There is a gap between the two pressure rollers 1 for the electrode sheet 20 to pass through, so that the two pressure rollers 1 are spaced apart. Each pressure roller 1 may have one cleaning mechanism 2. Alternatively, each pressure roller 1 may have multiple cleaning mechanisms 2. In embodiments where each pressure roller 1 has multiple cleaning mechanisms 2, the multiple cleaning mechanisms 2 are spaced apart circumferentially around the pressure rollers 1.

[0074] In this embodiment, both pressure rollers 1 can be cleaned by the cleaning mechanism 2, which improves the self-cleaning capability of the roller pressing device 10.

[0075] In this application, "multiple" refers to two or more.

[0076] In this application, unless otherwise expressly defined, 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 between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0077] The terms “first,” “second,” “third,” “fourth,” etc., in this application (if present) are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0078] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0079] Unless otherwise specified, all steps in this application may be performed sequentially or randomly. For example, if the method includes steps A and B, it means that the method may include steps A and B performed sequentially, or it may include steps B and A performed sequentially. For example, if the method may also include step C, it means that step C may be added to the method in any order. For example, the method may include steps A, B, and C, or it may include steps A, C, and B, or it may include steps C, A, and B, etc.

[0080] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A roller pressing device (10), characterized in that, include: Pressure roller (1), used for pressing workpieces; The cleaning mechanism (2) includes a scraping component (21) and a wiping component (22). The scraping component (21) and the wiping component (22) are arranged circumferentially along the pressure roller (1). The scraping component (21) is spaced apart from the pressure roller (1). The scraping component (21) is used to scrape off particles on the outer peripheral wall (11) of the pressure roller (1). The wiping component (22) is attached to the pressure roller (1) and is used to wipe the outer peripheral wall (11) of the pressure roller (1).

2. The roller pressing device (10) according to claim 1, characterized in that, The scraping assembly (21) includes: The first collection box (211) has a first collection cavity (2111) inside. The first collection box (211) has a first collection port (2112) that communicates with the first collection cavity (2111) at one end near the pressure roller (1). A scraper (212) is disposed at the first collection port (2112) and spaced apart from the pressure roller (1). The first collection chamber (2111) is used to collect the particles scraped off the pressure roller (1) by the scraper (212). The first negative pressure tube (213) is connected to the first collection box (211), and the lumen of the first negative pressure tube (213) is connected to the first collection chamber (2111).

3. The roller pressing device (10) according to claim 2, characterized in that, The scraping assembly (21) includes: The second collection box (214) has a second collection cavity (2141) inside. The top of the second collection box (214) has a second collection port (2142) that communicates with the second collection cavity (2141). The second collection port (2142) is located below the scraper (212). The second negative pressure tube (215) is connected to the second collection box (214), and the lumen of the second negative pressure tube (215) is connected to the second collection chamber (2141).

4. The roller pressing device (10) according to claim 3, characterized in that, The first collection box (211) is provided with a first communication channel (2113) communicating with the first collection cavity (2111), and the second collection box (214) is provided with a second communication channel (2143) communicating with the second collection cavity (2141). The first communication channel (2113) and the second communication channel (2143) are connected.

5. The roller pressing device (10) according to any one of claims 1-4, characterized in that, The wiping assembly (22) includes: The first roller (221) and the second roller (222) are arranged at circumferential intervals along the pressure roller (1); A first cleaning belt (223) is wound around the first roller (221) and the second roller (222). The portion of the first cleaning belt (223) located between the first roller (221) and the second roller (222) abuts against the outer peripheral wall (11) of the pressure roller (1). The rotation direction of the first roller (221), the rotation direction of the second roller (222) and the rotation direction (R) of the pressure roller are the same.

6. The roller pressing device (10) according to claim 5, characterized in that, The wiping assembly (22) includes: The spraying component (224) has a spray nozzle for spraying cleaning agent onto the first cleaning belt (223), the spray nozzle being disposed toward the portion of the first cleaning belt (223) located between the first roller (221) and the second roller (222).

7. The roller pressing device (10) according to claim 6, characterized in that, The wiping assembly (22) includes: Mounting frame (225), on which the first roller (221) and / or the second roller (222) are mounted, and the spray element (224) is movably disposed on the mounting frame (225) along the axial direction of the pressure roller (1).

8. The roller pressing device (10) according to claim 6 or 7, characterized in that, The cleaning mechanism (2) includes: The cleaning component (23), the scraping component (21) and the wiping component (22) are arranged circumferentially along the pressure roller (1). The cleaning component (23) is attached to the pressure roller (1) and is used to clean the cleaning agent on the outer peripheral wall (11) of the pressure roller (1).

9. The roller pressing device (10) according to claim 8, characterized in that, The cleaning component (23) includes: The third roller (231) and the fourth roller (232) are arranged at circumferential intervals along the pressure roller (1); The second cleaning belt (233) is wound around the third roller (231) and the fourth roller (232). The portion of the second cleaning belt (233) located between the third roller (231) and the fourth roller (232) is attached to the outer peripheral wall (11) of the pressure roller (1). The rotation direction of the third roller (231), the rotation direction of the fourth roller (232) and the rotation direction (R) of the pressure roller are the same.

10. The roller pressing device (10) according to any one of claims 1-4, characterized in that, The roller pressing device (10) includes two pressure rollers (1), which are spaced apart and used to press the workpiece. Each pressure roller (1) is provided with at least one cleaning mechanism (2).

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