A pair of rollers for preparing an electrode plate

Abstract

The application relates to the technical field of battery processing equipment, in particular to a pair of rollers for plate preparation, which comprises a pair of rollers, an upper roller and a lower roller, an in-out auxiliary device is arranged between the upper roller and the lower roller, roller surface cleaning devices are arranged at the side ends of the upper roller and the lower roller, the roller surface cleaning devices are provided with mounting side plates, sliding rails are arranged on the mounting side plates, sliding blocks are slidably arranged on the sliding rails, the roller surface of the upper roller and the lower roller is cleaned in a regular manner during plate extrusion processing, the precision of plate extrusion processing is ensured, and during the cleaning process, the impurities scraped by the scraper fall into the collecting frame through the smooth blanking plate, the splashing of the impurities is reduced, and the blanking plate can be intermittently reciprocatingly deflected; on one hand, the deflection of the blanking plate can make the impurities on the blanking plate slide better, and on the other hand, the deflection of the blanking plate can change the blanking position of the impurities, so that the impurities can be laid flat in the collecting frame.

Description

Technical Field

[0001] This invention relates to the technical field of battery processing equipment, and in particular to a roller mill for electrode preparation. Background Technology

[0002] The most commonly used materials for fuel cell bipolar plates are metals and graphite, with graphite bipolar plates holding a large market share due to their excellent corrosion resistance. Graphite bipolar plates are generally produced using three technological approaches: machined plates made from artificial graphite sheets using CNC machining of the flow field; hot-pressed plates made from thermoplastic resin mixed with carbon powder; and flexible graphite plates made by molding flexible graphite and impregnating it with resin for curing. Among these, flexible graphite plates are the most cost-effective and have a much higher molding efficiency than the other two. As the fuel cell industry gradually ramps up production, the production efficiency of bipolar plates needs to be significantly improved; therefore, flexible graphite bipolar plates are an important direction for the future development of fuel cell bipolar plates.

[0003] A roll forming method for a flexible graphite electrode plate for a fuel cell, Chinese patent application number CN202110148623.3, includes the following steps: (1) adjusting the gap between the printing rollers of the roll press to the target thickness value of the single electrode plate; (2) feeding the flexible graphite blank to the front of the printing rollers using a feeding device, and using the opposite rotation of the printing rollers to bite into the flexible graphite blank; (3) after the flexible graphite blank is bitten in, continuing to roll the blank forward for 10-100mm, then the upper and lower printing rollers rotate in opposite directions simultaneously, so that the flexible graphite blank is rolled in the reverse direction for 5-90mm. One forward rolling plus one reverse rolling is called one reciprocating roll pressing; (4) after several reciprocating roll pressings, the electrode plate is formed and separated from the printing rollers; (5) performing subsequent processing on the roll-formed flexible graphite electrode plate.

[0004] During the rolling process of the electrode plates, the coating on the plates inevitably adheres to the roller surface. Conventional cleaning methods require scraping with a scraper. When the impurities scraped off by the scraper fall in the same position, as the amount of impurities accumulates, the impurity landing point is prone to forming a sharp cone-shaped bulge. It is necessary to manually shake the collection frame at regular intervals to make the impurities spread evenly in the collection frame and collect more impurities. However, this operation consumes the operator's energy and time. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the present invention provides a roller mill for electrode plate preparation.

[0006] The present invention provides a roller mill for electrode plate preparation, comprising a roller mill, an upper roller and a lower roller, wherein a feeding and discharging auxiliary device is provided between the upper roller and the lower roller, and a roller surface cleaning device is provided on the side end of both the upper roller and the lower roller. The roller surface cleaning device includes a mounting side plate, a slide rail on the mounting side plate, a slider slidably mounted on the slide rail, a support plate on the slider, a rotating wheel rotatably mounted on the support plate, a drive rod mounted on the rotating wheel, a feeding plate rotatably mounted at the lower end of the support plate, a driven rod matching the drive rod on the side end of the feeding plate, and a collection frame at the lower end of the mounting side plate.

[0007] Preferably, the slider is provided with a tool mounting bracket, the tool mounting bracket is provided with a tool fixing plate, a scraper is provided between the tool mounting bracket and the tool fixing plate, the feeding plate is located at the lower end of the tool mounting bracket, and the collecting frame is located at the lower end of the feeding plate.

[0008] Preferably, a cylinder is provided on the mounting side plate at the lower end of the slide rail, the output end of the cylinder is connected to the slider, a touch switch is provided on the side end of the slide rail, and a touch screw matching the touch switch is provided at the lower end of the slider, the touch screw being rotatably mounted at the lower end of the slider.

[0009] Preferably, the roller mill is provided with a processing area, the upper roller and the lower roller are rotatably arranged in the processing area, the roller mill is provided with a drive device to drive the upper roller and the lower roller to rotate, the lower end of the roller mill is also provided with a hydraulic device to drive the lower roller to lift, the roller mill is also provided with a touch control device, and the feeding and discharging auxiliary device is arranged in the processing area.

[0010] Preferably, the feeding and discharging auxiliary device includes a feeding auxiliary roller and a discharging auxiliary roller, both of which are rotatably disposed within the processing area.

[0011] Preferably, the feeding auxiliary roller and the discharging auxiliary roller are located on both sides of the lower roller, a feeding auxiliary plate is provided between the feeding auxiliary roller and the lower roller, and a feeding auxiliary arc plate is provided on the lower end of the upper roller near the feeding auxiliary roller.

[0012] Preferably, the roller surface cleaning device is located within the processing area, with the roller surface cleaning device corresponding to the upper roller located on the side of the upper roller closer to the discharge auxiliary roller, and the roller surface cleaning device corresponding to the lower roller located on the side of the lower roller closer to the feed auxiliary roller.

[0013] Preferably, the slider is provided with a T-shaped groove at the corresponding position of the cylinder output end, and the cylinder output end is fitted into the T-shaped groove.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: By installing a roller surface cleaning device, the upper and lower roller surfaces are cleaned periodically during the electrode plate extrusion process, ensuring the accuracy of the extrusion process. During the cleaning process, impurities scraped off by the scraper fall smoothly into the collection frame through the feeding plate, reducing impurity splashing. The feeding plate can intermittently reciprocate, which allows impurities on the plate to slide off better and changes the falling position of the impurities, allowing them to be spread evenly in the collection frame. When the feeding plate returns to its original position due to gravity, the lower end of the feeding plate strikes the collection frame, causing slight vibration and leveling the impurities in the collection frame, thus improving impurity collection. After cleaning, when the roller surface cleaning device returns to its initial state, the movement of the feeding plate scrapes off any impurities higher than the collection frame again, further improving impurity collection. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the processing area of ​​the present invention; Figure 3 This is the present invention. Figure 2 A magnified schematic diagram of the local structure at point A; Figure 4 This is a schematic diagram of the structure of the roller surface cleaning device of the present invention; Figure 5 This is the present invention. Figure 4 A magnified schematic diagram of the structure at point B in the middle.

[0016] Reference numerals: 1. Upper roller; 2. Lower roller; 3. Feeding / discharging auxiliary device; 4. Roller surface cleaning device; 5. Roller counter; 6. Processing area; 7. Touch control device; 301. Feeding auxiliary roller; 302. Discharging auxiliary roller; 303. Feeding auxiliary plate; 304. Feeding auxiliary arc plate; 401. Mounting side plate; 402. Slide rail; 403. Slider; 404. Tool mounting bracket; 405. Tool fixing plate; 406. Scraper; 407. Support plate; 408. Rotary wheel; 409. Drive rod; 410. Discharge plate; 411. Driven rod; 412. Collection frame; 413. Cylinder; 414. Touch switch; 415. Touch screw; 416. T-slot. Detailed Implementation

[0017] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

[0018] Example 1 like Figures 1 to 4 As shown, this invention discloses a roller mill for electrode plate preparation, including a roller mill 5, an upper roller 1, and a lower roller 2. A feeding and discharging auxiliary device 3 is provided between the upper roller 1 and the lower roller 2. Roller surface cleaning devices 4 are provided on the sides of both the upper roller 1 and the lower roller 2. During the battery electrode plate production process, the electrode plate needs to be extruded by the roller mill 5 to meet the required process requirements. When the electrode plate is extruded by the roller mill 5, it enters between the upper roller 1 and the lower roller 2. With the coordinated rotation of the upper roller 1 and the lower roller 2, the electrode plate is extruded. When the electrode plate enters between the upper roller 1 and the lower roller 2, it is assisted by the feeding and discharging auxiliary device 3 to ensure that the electrode plate can move smoothly.

[0019] The roller mill 5 is equipped with a processing area 6, in which the upper roller 1 and lower roller 2 are rotatably mounted. The roller mill 5 is equipped with a drive device that drives the upper roller 1 and lower roller 2 to rotate. The lower end of the roller mill 5 is also equipped with a hydraulic device that drives the lower roller 2 to rise and fall. The roller mill 5 is also equipped with a touch control device 7. The feeding and discharging auxiliary device 3 is located in the processing area 6. The drive device can drive the upper roller 1 and lower roller 2 to rotate, while the hydraulic device can drive the lower roller 2 to rise and fall. When the lower roller 2 rises and falls, the distance between it and the upper roller 1 will change, which will affect the extrusion pressure on the electrode plate. Therefore, the height of the lower roller 2 can be adjusted according to the processing requirements of the electrode plate, so that the electrode plate can be extruded according to the processing requirements.

[0020] The feeding and discharging auxiliary device 3 includes a feeding auxiliary roller 301 and a discharging auxiliary roller 302. Both the feeding auxiliary roller 301 and the discharging auxiliary roller 302 are rotatably arranged in the processing area 6. The feeding auxiliary roller 301 and the discharging auxiliary roller 302 are located on both sides of the lower roller 2. A feeding auxiliary plate 303 is arranged between the feeding auxiliary roller 301 and the lower roller 2. A feeding auxiliary arc plate 304 is arranged on the lower side of the upper roller 1 near the feeding auxiliary roller 301. When the electrode plate is being extruded, the electrode plate will be placed on the feeding auxiliary roller 301 and move. The electrode plate will gradually move onto the feeding auxiliary plate 303. Then, under the limitation of the feeding auxiliary plate 303 and the feeding auxiliary arc plate 304, the electrode plate enters between the upper roller 1 and the lower roller 2. As the upper roller 1 and the lower roller 2 rotate, the electrode plate is extruded. After extrusion, the electrode plate will fall onto the discharging auxiliary roller 302, ensuring the stable movement of the electrode plate throughout the entire processing process and improving the stability of the equipment processing.

[0021] The roller surface cleaning device 4 is located in the processing area 6. The roller surface cleaning device 4 corresponding to the upper roller 1 is located on the side of the upper roller 1 near the discharge auxiliary roller 302, and the roller surface cleaning device 4 corresponding to the lower roller 2 is located on the side of the lower roller 2 near the feed auxiliary roller 301. During the extrusion process of the electrode plate, the coating material on the electrode plate is easy to adhere to the surface of the upper roller 1 or the lower roller 2. With the adhesion of impurities, the subsequent extrusion process of the electrode plate is prone to uneven extrusion of the electrode plate due to the unclean roller surface. Therefore, with the assistance of the roller surface cleaning device 4, the roller surfaces of the upper roller 1 and the lower roller 2 are cleaned to ensure the accuracy of the continuous extrusion process of the electrode plate.

[0022] The roller surface cleaning device 4 includes a mounting side plate 401, a slide rail 402 mounted on the mounting side plate 401, a slider 403 slidably mounted on the slide rail 402, a tool mounting bracket 404 mounted on the slider 403, a tool fixing plate 405 mounted on the tool mounting bracket 404, and a scraper 406 positioned between the tool mounting bracket 404 and the tool fixing plate 405. A cylinder 413 is mounted on the mounting side plate 401 at the lower end of the slide rail 402. The output end of the cylinder 413 is connected to the slider 403. Activating the cylinder 413 causes its output end to move, thus moving the slider 403. The movement of 403 is limited by the slide rail 402, making the movement of the slide rail 402 more stable. During the movement of the slide rail 402, it will drive the movement of the tool mounting bracket 404, causing the scraper 406 on the tool mounting bracket 404 to move towards the upper roller 1 or the lower roller 2. After the scraper 406 reaches the set position, the scraper 406 will stick to the roller surface of the upper roller 1 or the lower roller 2. As the upper roller 1 or the lower roller 2 rotates, the impurities on the roller surface of the upper roller 1 or the lower roller 2 will be scraped off by the scraper 406, thereby completing the cleaning of the roller surface and ensuring the accuracy of the upper roller 1 and the lower roller 2 in the electrode extrusion process.

[0023] The slider 403 has a T-slot 416 at the corresponding position of the output end of the cylinder 413. The output end of the cylinder 413 is fitted into the T-slot 416. The fitting method makes the installation of the output end of the cylinder 413 more convenient and reduces the labor and time costs consumed in equipment installation.

[0024] A touch switch 414 is provided on the side of the slide rail 402, and a touch screw 415 matching the touch switch 414 is provided on the lower end of the slider 403. The touch screw 415 is rotatably mounted on the lower end of the slider 403. Rotating the touch screw 415 can adjust the distance between the touch screw 415 and the touch switch 414. During the movement of the slider 403, the touch screw 415 will also move. After the touch screw 415 moves and contacts the touch switch 414, the touch switch 414 is activated, thereby controlling the cylinder 413 to stop operating. Therefore, by controlling the distance between the touch switch 414 and the touch screw 415, the moving distance of the slider 403 can be indirectly controlled, thereby controlling the distance between the scraper 406 and the upper roller 1 or the lower roller 2. This avoids excessive pressure between the scraper 406 and the roller surface of the upper roller 1 or the lower roller 2, which could cause the scraper 406 to break during the cleaning process, and reduces damage to the roller surface of the upper roller 1 or the lower roller 2.

[0025] In the process of using this invention, the mounting side plate 401 is installed at the corresponding position in the processing area 6 of the roller mill 5, and then each component is installed on the mounting side plate 401 in sequence to complete the assembly of the roller surface cleaning device 4.

[0026] After the roller surface cleaning device 4 is assembled, rotate the touch screw 415 to adjust the distance between the touch screw 415 and the touch switch 414, thereby adjusting the distance between the scraper 406 and the upper roller 1 or the lower roller 2, so that when the scraper 406 scrapes and cleans the roller surface, the scraper 406 is located at the set position.

[0027] After the equipment is debugged, start the hydraulic device inside the equipment to move the lower roller 2 upward to adjust the distance between the upper roller 1 and the lower roller 2. This adjustment needs to be made according to the requirements of the electrode plate extrusion process. Then start the drive device to make the upper roller 1 and the lower roller 2 rotate.

[0028] During the electrode extrusion process, the electrode is placed on the feeding auxiliary roller 301 and moves. The electrode gradually moves to the feeding auxiliary plate 303, and then enters between the upper roller 1 and the lower roller 2 under the limitation of the feeding auxiliary plate 303 and the feeding auxiliary arc plate 304. As the upper roller 1 and the lower roller 2 rotate, the electrode is extruded. After extrusion, the electrode falls onto the discharge auxiliary roller 302, ensuring the stable movement of the electrode throughout the entire processing.

[0029] As the electrode plate extrusion process proceeds, some of the coating material on the electrode plate will inevitably adhere to the roller surface of the upper roller 1 or the lower roller 2. With the adhesion of impurities, the subsequent electrode plate extrusion process is prone to uneven extrusion due to the unclean roller surface. At this time, the roller surface cleaning device 4 is started at regular intervals to clean the roller surfaces of the upper roller 1 and the lower roller 2, ensuring the accuracy of continuous electrode plate extrusion.

[0030] When the roller surface cleaning device 4 is in operation, the cylinder 413 is activated. The output end of the cylinder 413 moves, driving the slider 403 to move. The movement of the slider 403 is limited by the slide rail 402, making the movement of the slide rail 402 more stable. During the movement of the slide rail 402, it will drive the tool mounting bracket 404 to move, causing the scraper 406 on the tool mounting bracket 404 to move towards the upper roller 1 or the lower roller 2. After the scraper 406 reaches the set position, the scraper 406 will stick to the roller surface of the upper roller 1 or the lower roller 2. As the upper roller 1 or the lower roller 2 rotates, the impurities on the roller surface of the upper roller 1 or the lower roller 2 will be scraped off by the scraper 406, thereby completing the cleaning of the roller surface and ensuring the accuracy of the upper roller 1 and the lower roller 2 in the electrode extrusion process.

[0031] Example 2 Based on the above-described embodiment 1, a roller mill for electrode plate preparation involves collecting impurities removed by the scraper 406 in a collection frame 412 placed below it. However, during collection, when impurities scraped off by the scraper 406 fall at the same location, a sharp cone-shaped bulge easily forms at the point of impact as the amount of impurities accumulates. This requires manual, periodic shaking of the collection frame 412 to spread the impurities evenly within it, allowing the frame to collect more impurities. However, this operation is time-consuming and labor-intensive for the operator. Therefore, the following technical solution is proposed: like Figures 1 to 5 As shown, a support plate 407 is provided on the slider 403, a rotating wheel 408 is rotatably mounted on the support plate 407, a drive rod 409 is provided on the rotating wheel 408, a feeding plate 410 is rotatably mounted at the lower end of the support plate 407, a driven rod 411 matching the drive rod 409 is provided on the side end of the feeding plate 410, a collection frame 412 is provided at the lower end of the mounting side plate 401, the feeding plate 410 is located at the lower end of the tool mounting bracket 404, the collection frame 412 is located at the lower end of the feeding plate 410, and the impurities scraped off by the scraper 406 will fall onto the feeding plate 410, and the impurities will follow the... The feeding plate 410 falls smoothly into the collection frame 412, preventing large pieces of impurities from falling into the collection frame 412 and splashing. After the rotating wheel 408 is attached to the roller surface, the rotating wheel 408 will rotate. After the rotating wheel 408 rotates, the drive rod 409 will drive the driven rod 411 to deflect, thereby causing the feeding plate 410 to deflect. On the one hand, the deflection of the feeding plate 410 can make the impurities on it slide off better. On the other hand, the deflection of the feeding plate 410 will change the falling position of the impurities, so that the impurities can be spread flat in the collection frame 412.

[0032] In the process of using this invention, the mounting side plate 401 is installed at the corresponding position in the processing area 6 of the roller mill 5, and then each component is installed on the mounting side plate 401 in sequence to complete the assembly of the roller surface cleaning device 4.

[0033] After the roller surface cleaning device 4 is assembled, rotate the touch screw 415 to adjust the distance between the touch screw 415 and the touch switch 414, thereby adjusting the distance between the scraper 406 and the upper roller 1 or the lower roller 2, so that when the scraper 406 scrapes and cleans the roller surface, the scraper 406 is located at the set position.

[0034] After the equipment is debugged, start the hydraulic device inside the equipment to move the lower roller 2 upward to adjust the distance between the upper roller 1 and the lower roller 2. This adjustment needs to be made according to the requirements of the electrode plate extrusion process. Then start the drive device to make the upper roller 1 and the lower roller 2 rotate.

[0035] During the electrode extrusion process, the electrode is placed on the feeding auxiliary roller 301 and moves. The electrode gradually moves to the feeding auxiliary plate 303, and then enters between the upper roller 1 and the lower roller 2 under the limitation of the feeding auxiliary plate 303 and the feeding auxiliary arc plate 304. As the upper roller 1 and the lower roller 2 rotate, the electrode is extruded. After extrusion, the electrode falls onto the discharge auxiliary roller 302, ensuring the stable movement of the electrode throughout the entire processing.

[0036] As the electrode plate extrusion process proceeds, some of the coating material on the electrode plate will inevitably adhere to the roller surface of the upper roller 1 or the lower roller 2. With the adhesion of impurities, the subsequent electrode plate extrusion process is prone to uneven extrusion due to the unclean roller surface. At this time, the roller surface cleaning device 4 is started at regular intervals to clean the roller surfaces of the upper roller 1 and the lower roller 2, ensuring the accuracy of continuous electrode plate extrusion.

[0037] When the roller surface cleaning device 4 is in operation, the cylinder 413 is activated. The output end of the cylinder 413 moves, driving the slider 403 to move. The movement of the slider 403 is limited by the slide rail 402, making the movement of the slide rail 402 more stable. During the movement of the slide rail 402, it will drive the tool mounting bracket 404 to move, causing the scraper 406 on the tool mounting bracket 404 to move towards the upper roller 1 or the lower roller 2. After the scraper 406 reaches the set position, the scraper 406 will stick to the roller surface of the upper roller 1 or the lower roller 2. As the upper roller 1 or the lower roller 2 rotates, the impurities on the roller surface of the upper roller 1 or the lower roller 2 will be scraped off by the scraper 406, thereby completing the cleaning of the roller surface and ensuring the accuracy of the upper roller 1 and the lower roller 2 in the electrode extrusion process.

[0038] When the roller cleaning device 4 is running, when the slider 403 moves to the set position towards the roller surface, the roller 408 will stick to the roller surface. At this time, when the roller surface rotates, it will drive the roller 408 to rotate. The rotation of the roller 408 will drive the drive rod 409 to move. Every time the roller 408 rotates once, the drive rod 409 will contact and cooperate with the driven rod 411 once, so that the feed plate 410 will deflect once, and then return to its original position under the action of gravity.

[0039] During the process of the feeding plate 410 deflecting and then returning to its original position, impurities will smoothly fall into the collection frame 412 along the feeding plate 410, avoiding large pieces of impurities from falling into the collection frame 412 and bouncing and splashing. When the feeding plate 410 deflects, on the one hand, the deflection of the feeding plate 410 allows the impurities on it to slide off better, and on the other hand, the deflection of the feeding plate 410 will change the falling position of the impurities, so that the impurities can be spread flat in the collection frame 412. When the deflection of the feeding plate 410 returns to its original position by gravity, the lower end of the feeding plate 410 will hit the collection frame 412, so that the collection frame 412 will vibrate slightly, flattening the impurities in the collection frame 412, so that the collection frame 412 can collect impurities better.

[0040] After the roller surface cleaning device 4 finishes operating, the cylinder 413 drives the slider 403 to move away from the roller surface. During this process, the lower end of the feeding plate 410 moves against the collection frame 412. Through the movement of the feeding plate 410, the impurities in the collection frame 412 that are higher than the collection frame 412 are scraped flat again, so that the collection frame 412 can better collect the impurities.

[0041] The main function achieved by this invention is as follows: By setting up the roller surface cleaning device 4, the upper roller 1 and lower roller 2 are cleaned periodically during the electrode plate extrusion process, ensuring the accuracy of the electrode plate extrusion process. During the cleaning process, the impurities scraped off by the scraper 406 fall smoothly into the collection frame 412 through the feed plate 410, reducing the splashing of impurities. The feed plate 410 can intermittently reciprocate and deflect. On the one hand, the deflection of the feed plate 410 allows the impurities on it to slide off better. On the other hand, the deflection of the feed plate 410 will make the impurities fall off at a certain position. The position is changed so that the impurities can be spread evenly in the collection frame 412. When the deflection of the feed plate 410 is restored by gravity, the lower end of the feed plate 410 will hit the collection frame 412, causing the collection frame 412 to vibrate slightly, which flattens the impurities in the collection frame 412 and allows the collection frame 412 to collect impurities better. After cleaning, when the roller surface cleaning device 4 returns to the initial state, the movement of the feed plate 410 will scrape the impurities in the collection frame 412 that are higher than the collection frame 412 again, allowing the collection frame 412 to collect impurities better.

[0042] The present invention provides a roller mill for preparing electrode plates. Its installation method, connection method or setting method are all common mechanical methods. As long as they can achieve their beneficial effects, they can be implemented.

[0043] All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the specification of this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0044] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A pair of rollers for plate production, comprising a pair of rollers (5), an upper roller (1) and a lower roller (2), characterized in that, An infeed / outfeed auxiliary device (3) is provided between the upper roller (1) and the lower roller (2), and a roller surface cleaning device (4) is provided on the side of both the upper roller (1) and the lower roller (2). The roller cleaning device (4) includes a mounting side plate (401), a slide rail (402) is provided on the mounting side plate (401), a slider (403) is slidably provided on the slide rail (402), a support plate (407) is provided on the slider (403), a rotating wheel (408) is rotatably provided on the support plate (407), a drive rod (409) is provided on the rotating wheel (408), a feeding plate (410) is rotatably provided at the lower end of the support plate (407), a driven rod (411) matching the drive rod (409) is provided at the side end of the feeding plate (410), and a collection frame (412) is provided at the lower end of the mounting side plate (401). A tool mounting bracket (404) is provided on the slider (403), a tool fixing plate (405) is provided on the tool mounting bracket (404), a scraper (406) is provided between the tool mounting bracket (404) and the tool fixing plate (405), the feeding plate (410) is located at the lower end of the tool mounting bracket (404), and the collecting frame (412) is located at the lower end of the feeding plate (410); A cylinder (413) is provided on the mounting side plate (401) at the lower end of the slide rail (402). The output end of the cylinder (413) is connected to the slider (403). A touch switch (414) is provided on the side end of the slide rail (402). A touch screw (415) matching the touch switch (414) is provided at the lower end of the slider (403). The touch screw (415) is rotatably mounted on the lower end of the slider (403).

2. The roller mill for electrode preparation as described in claim 1, characterized in that, The roller mill (5) is provided with a processing area (6). The upper roller (1) and the lower roller (2) are rotatably arranged in the processing area (6). The roller mill (5) is provided with a drive device to drive the upper roller (1) and the lower roller (2) to rotate. The lower end of the roller mill (5) is also provided with a hydraulic device to drive the lower roller (2) to rise and fall. The roller mill (5) is also provided with a touch control device (7). The feeding and discharging auxiliary device (3) is arranged in the processing area (6).

3. The roller mill for electrode preparation as described in claim 1, characterized in that, The feeding and discharging auxiliary device (3) includes a feeding auxiliary roller (301) and a discharging auxiliary roller (302), both of which are rotatably disposed within the processing area (6).

4. The roller mill for electrode preparation as described in claim 3, characterized in that, The feed auxiliary roller (301) and the discharge auxiliary roller (302) are located on both sides of the lower roller (2). A feed auxiliary plate (303) is provided between the feed auxiliary roller (301) and the lower roller (2). A feed auxiliary arc plate (304) is provided on the lower side of the upper roller (1) near the feed auxiliary roller (301).

5. The roller mill for electrode plate preparation as described in claim 1, characterized in that, The roller surface cleaning device (4) is located in the processing area (6). The roller surface cleaning device (4) corresponding to the upper roller (1) is located on the side of the upper roller (1) close to the discharge auxiliary roller (302). The roller surface cleaning device (4) corresponding to the lower roller (2) is located on the side of the lower roller (2) close to the feed auxiliary roller (301).

6. The roller mill for electrode preparation as described in claim 1, characterized in that, The slider (403) is provided with a T-shaped groove (416) at the corresponding position of the output end of the cylinder (413), and the output end of the cylinder (413) is fitted into the T-shaped groove (416).

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