Roller wiping and dust removing device of roller press

Abstract

The invention relates to the technical field of lithium battery rolling, and discloses a roller press roller wiping dust removal device which comprises a laser cleaning mechanism, a dust collection mechanism and a scraper mechanism which are arranged on the peripheral side of a roller, and the laser cleaning mechanism comprises a laser capable of reciprocating in the axial direction of the roller; the dust collection mechanism comprises a dust collection hopper capable of moving synchronously with the laser, and a light-transmitting seam is formed in the side, close to the laser, of the dust collection hopper. The scraper mechanism comprises a scraper support, and a scraper assembly is installed on the scraper support. The laser beams output by the laser directly act on attachments with complex components on the surface of the roller, residual compounds on the surface of the roller are gasified or decomposed into dust by regulating and controlling the energy and power density of the laser beams, the dust is sucked away by the dust suction mechanism, and meanwhile the surface of the roller is not damaged. The device can effectively prevent scraped dust from polluting the production environment, and is small in size, low in cost and good in cleaning effect.

Description

Technical Field

[0001] The invention relates to the technical field of lithium battery roller pressing, and in particular to a wiping roller dust removal device for a roller press. Background Art

[0002] In the production process of battery pole pieces, the roller press is the key equipment for compacting the battery pole pieces after the coating process. During the rolling process, the battery pole pieces and the surfaces of the upper and lower rollers will fit together with a very high degree of tightness. Due to the complex physical effects in the production process, the surface of the rollers will inevitably have residual adhesion of the pole pieces, especially the negative pole pieces of the battery. Due to its material characteristics and process characteristics, this adhesion is more prominent.

[0003] If the adhesion on the roller surface is not dealt with in time, the amount of accumulation will gradually increase as production continues. Once it reaches a certain level, the subsequent rolling effect of the pole piece will be seriously disturbed. From a microscopic level, the adhesion will prevent the roller from applying uniform pressure to the pole piece, causing inconsistent pressure in different parts of the pole piece, which will seriously damage the consistency of the thickness of the pole piece. The uniformity of the thickness of the pole piece is crucial to the performance of the battery. During the battery charging and discharging process, the pole piece with inconsistent thickness will lead to uneven current distribution, excessive current in some areas, and easily cause local overheating, causing safety problems in the battery during the charging and discharging process.

[0004] Currently, manual wiping rollers and non-woven automatic wiping rollers are the most common ways to clean roller surface adhesions in the industry. Manual wiping rollers rely on operators to hold cleaning tools and wipe the roller surface during equipment operation. This method is not only extremely labor-intensive, but also very inefficient due to the limitations of manual operation, frequently interrupting the production process, and seriously slowing down the overall production rhythm; at the same time, although non-woven automatic wiping rollers have achieved automation to a certain extent, with the increase in frequency of use, the amount of non-woven consumables used is extremely large, which makes the cost of consumables in the later stage high.

[0005] In addition, whether it is a manual wiping roller or a non-woven automatic wiping roller, it is difficult to achieve thorough and effective cleaning when faced with complex and diverse adhesions. There is a large gap between the actual wiping roller effect and production requirements, and it cannot meet the increasing demand for high-quality production of battery electrodes. Summary of the invention

[0006] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a roller press roller dust removal device, which uses laser to act on the surface of the roller to be cleaned to separate the attached matter from the base, and then uses negative pressure suction to suck away the attached matter to achieve initial cleaning; then when the roller rotates, the impurities on the surface of the roller are removed again by a scraper, thereby cleaning the roller surface in multiple aspects.

[0007] To achieve the above object, the technical solution adopted by the present invention is as follows: A roll press roll cleaning and dust removal device, including a laser cleaning mechanism, a dust suction mechanism, and a scraper mechanism arranged on the circumferential side of the roll. The laser cleaning mechanism includes a laser that can reciprocate along the axial direction of the roll; the dust suction mechanism includes a dust suction hopper that can move synchronously with the laser. A light-transmitting slit is provided on one side of the dust suction hopper close to the laser, and the laser beam output by the laser passes through the light-transmitting slit to the circumferential surface of the roll; the scraper mechanism includes a scraper bracket that can move horizontally towards the roll and automatically adjust the angle. A scraper assembly for scraping impurities on the circumferential surface of the roll is installed on the scraper bracket.

[0008] Optionally, the laser cleaning mechanism further includes a linear module parallel to the axis of the roll. The output end of the linear module is provided with a sliding table, and the laser is installed on the sliding table.

[0009] Optionally, the dust suction mechanism further includes a guide rail parallel to the axis of the roll. The dust collection hopper is slidably installed on the guide rail through a slider, and the dust collection hopper is fixedly connected to the sliding table through a connecting frame.

[0010] Optionally, photoelectric switches are provided at both ends of the linear module. An induction sheet that can pass through the photoelectric switches is fixedly installed on the sliding table, and both ends of the connecting frame are respectively fixedly connected to the induction sheet and the dust collection hopper.

[0011] Optionally, an angle positioning wheel that can be tangent to the roll is rotatably installed on the upper part of the scraper bracket. The angle positioning wheel is parallel to the axis of the roll, and the scraper assembly is installed on the lower part of the scraper bracket.

[0012] Optionally, two mounting plates are oppositely arranged at both ends of the scraper bracket, and the end of the scraper bracket is rotatably connected to the mounting plates; a support plate is provided on the outer side of the mounting plates. A telescopic assembly for driving the mounting plates to move horizontally towards the roll is installed on the support plate, and the output end of the telescopic assembly is connected to the mounting plates.

[0013] Optionally, a limiting block is provided on the outer side of the mounting plates. The limiting block is connected to the scraper bracket through a pin shaft, and the end of the limiting block has a protrusion; two stop blocks are also provided on the outer side of the mounting plates, and the two stop blocks are located on the rotation path of the protrusion.

[0014] Optionally, the scraper assembly includes a first scraper and a second scraper that overlap each other. The first scraper is located below the second scraper, and the first scraper protrudes from the second scraper.

[0015] Optionally, a blade gland is installed at the bottom of the scraper support. A clamping groove for installing the scraper assembly is formed between the blade gland and the scraper support, and a boss for positioning the first scraper is provided on one side of the blade gland close to the clamping groove.

[0016] Optionally, a dust collection assembly for collecting impurities scraped from the surface of the roller is provided below the scraper support. The dust collection assembly includes a dust collection box and a base for supporting the dust collection box. The base is fixedly installed at the lower part of the support plate, and both ends of the dust collection box are respectively leaned against the corresponding bases.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) In the present invention, the laser beam output by the laser directly acts on the complex attachments on the surface of the roller. By regulating the energy and power density of the laser beam, the residual compounds on the surface of the roller are vaporized or decomposed into dust and sucked away by the dust suction mechanism. At the same time, the surface of the roller is not damaged, which can effectively prevent the dust scraped off from polluting the production environment. Moreover, the device is small in size, low in cost, and has a good cleaning effect. (2) In the present invention, by overlapping the laser and the scraper assembly, the problems of incomplete cleaning of the existing mechanism and short service life of the scraper are solved, and the working efficiency of pole piece manufacturing is improved. (3) In the present invention, the laser of the laser cleaning mechanism and the dust suction hopper of the dust suction mechanism can synchronously move horizontally back and forth along the axial direction of the roller, that is, the laser and the dust suction hopper always maintain a relatively static state. Thereby, the stability of the laser beam passing through the light-transmitting slit is improved, the relative movement between the two is avoided, the position change between the output end of the laser and the light-transmitting slit is prevented, and the relative position accuracy is improved. (4) In the present invention, the scraper support rotates relative to the mounting plate. As the mounting plate drives the scraper support closer to the roller, the angle adjustment wheel first contacts the surface of the roller, and then the scraper support automatically adjusts the angle according to the distance pushed out by the mounting plate until the blade of the scraper assembly is attached to the surface of the roller. As the roller rotates, the impurity removal work is realized. This structure can realize the automatic angle adjustment of the scraper assembly, and further realize the adjustment of the blade attachment force between the scraper assembly and the roller. Description of the Drawings

[0018] Figure 1 is a schematic structural diagram of the roller press roll cleaning and dust removal device in the embodiment of the present invention; Figure 2 is a schematic structural diagram of the laser cleaning mechanism in the embodiment of the present invention; Figure 3 is a schematic structural diagram of the dust suction mechanism in the embodiment of the present invention; Figure 4 is a schematic structural diagram of the scraper mechanism in the embodiment of the present invention; Figure 5 yes Figure 4 A partial enlarged view of the middle A; Figure 6 Schematic diagram of the position structure of the wiping roller dust removal device and the roller press in the embodiment of the present invention; Among them, 1. roller; 2. laser cleaning mechanism; 201. base; 202. slide; 203. laser; 204. linear module; 205. sensor; 206. photoelectric switch; 3. Dust collection mechanism; 301. Dust collection hopper; 302. Light transmission slit; 303. Connecting frame; 304. Guide rail; 305. Sliding block; 4. Scraper mechanism; 401. Mounting plate; 411. Limit block; 412. Stop block; 402. Scraper bracket; 403. Scraper assembly; 405. Angle positioning wheel; 406. Dust collection assembly; 407. Support plate; 408. Telescopic assembly. DETAILED DESCRIPTION

[0019] The present invention will now be further described in detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention. Embodiment 1

[0020] like Figure 1 and Figure 6 As shown, a roller press roller dust removal device comprises a laser cleaning mechanism 2, a dust suction mechanism 3 and a scraper mechanism 4, all of which are arranged on the frame of the roller press and distributed around the roller 1.

[0021] Among them, the laser cleaning mechanism 2 uses the output laser beam to directly apply energy to the complex attachments on the surface of the roller 1. By adjusting the laser beam energy and power density, the residual compounds on the surface of the roller 1 are gasified or decomposed into dust and sucked away by the dust suction mechanism 3. At the same time, the surface of the roller 1 will not be damaged, and the scraped dust can be effectively prevented from polluting the production environment.

[0022] The laser cleaning mechanism 2 and the scraper mechanism 4 are overlapped on the same roller 1 side, which solves the problems of incomplete cleaning of the existing mechanism and short scraper life, and improves the working efficiency of pole piece manufacturing.

[0023] like Figure 1 and Figure 2As shown in the figure, the laser cleaning mechanism 2 includes a laser 203, a linear module 204 and a limit component. The output end of the linear module 204 is equipped with a slide table 202, and the laser 203 is fixedly installed on the slide table 202. The laser 203 can output a laser beam, and the linear module 204 is located on one side of the rolling mill 1 and is parallel to its axis; that is, the linear module 204 is connected to the frame. Driven by the linear module 204, the laser 203 can move horizontally back and forth along the axial direction of the rolling mill 1.

[0024] Regarding the working principle of the laser roll cleaning described above, the following methods can be adopted: (1) The laser 203 uses a laser with a narrow pulse width and high power density to act on the surface of the rolling mill 1. Under the combined action of mechanisms such as rapid optical vibration vaporization, decomposition, and plasma stripping, the attached substances are separated from the surface of the rolling mill 1 and sucked away by the dust suction mechanism 3 to achieve primary cleaning. (2) The laser beam generated by the laser 203 can also achieve highly concentrated energy through the focusing of the optical system. After focusing, high temperature is generated, causing the attached substances on the surface of the rolling mill 1 to instantly vaporize or decompose, thereby achieving primary cleaning. (3) When the laser 203 acts on the attached substances on the surface of the rolling mill 1 and the attached substances heat up and expand, and the expansion force of the attached substances on the surface is greater than the adsorption force between them and the rolling mill 1, the attached substances on the surface will break away from the surface of the rolling mill 1. (4) The laser 203 uses pulsed laser with a relatively high frequency and power to impact the surface of the rolling mill 1, generating ultrasonic waves on the surface of the rolling mill 1. The ultrasonic waves return after impacting the hard surface of the middle and lower layers and interfere with the incident sound waves, thereby generating high-energy resonance waves, causing the dirt to undergo micro-explosions, pulverizations, and detachments from the surface of the matrix material.

[0025] Furthermore, the linear module 204 includes a base 201 connected to the frame. A chute parallel to the axis of the rolling mill 1 is provided on the base 201. A slide table 202 is slidably installed in the chute. One end of the base 201 is fixedly installed with a stepping motor, and the other end is rotatably installed with a transmission wheel. The output end of the stepping motor is fixedly installed with a synchronous pulley, and the synchronous pulley and the transmission wheel are connected by a synchronous belt. The slide table 202 is fixedly connected to one side of the synchronous belt, so that the stepping motor drives the slide table 202 to reciprocate along the length direction of the chute through the synchronous belt.

[0026] The limit component includes an induction sheet 205, a photoelectric switch 206 and a drag chain; photoelectric switches 206 are respectively fixedly installed beside both ends of the linear module 204. The induction sheet 205 is fixedly installed on the slide table 202, and the upper end of the drag chain is fixedly connected to the slide table 202, and the lower end is fixedly connected to the base 201.

[0027] The laser 203 is fixedly installed on the sliding table 202. When the stepper motor operates, it drives the synchronous pulley to rotate, and the power is transmitted to the sliding table 202 through the synchronous belt to make it move left and right along the chute. When the sliding table 202 moves, the position is conducted according to whether the induction piece 205 passes through the photoelectric switch 206, and the position of the sliding table 202 can be restricted by using a drag chain.

[0028] As Figure 1 and Figure 3 shown in the figure, the dust suction mechanism 3 includes a dust suction hopper 301, a connecting frame 303 and a guide rail 304. The upper end of the dust suction hopper 301 is slidably installed on the guide rail 304 through a slider 305. The left end of the dust suction hopper 301 is connected to an existing dust collector through a dust suction pipe. The right end of the dust suction hopper 301 is fixedly connected to the sliding table 202 through the connecting frame 303, and the guide rail 304 and the chute are parallel to each other. Therefore, the dust suction hopper 301 can follow the sliding table 202 and reciprocate horizontally along the axial direction of the roll 1 synchronously.

[0029] Furthermore, a light-transmitting slit 302 is provided on one side of the dust suction hopper 301 close to the laser 203. The laser beam output by the laser 203 passes through the light-transmitting slit 302 to the circumferential surface of the roll 1, while the lower end of the dust suction hopper 301 is located outside the roll 1, and there is a certain gap between the two. And the lower end of the dust suction hopper 301 has the same shape as the outer contour of the roll 1, so as to better realize the dust suction work.

[0030] Among them, the dust suction mechanism 3 can suck away the dust vaporized or decomposed by the laser 203 through the dust suction hopper 301 and the dust suction pipe; the laser 203 of the laser cleaning mechanism 2 and the dust suction hopper 301 of the dust suction mechanism 3 can reciprocate horizontally along the axial direction of the roll 1 synchronously, that is, the laser 203 and the dust suction hopper 301 always remain in a relatively static state, thereby improving the stability of the laser beam passing through the light-transmitting slit 302, avoiding relative movement between the two, preventing the position of the output end of the laser 203 and the light-transmitting slit 302 from changing, and improving the relative position accuracy.

[0031] Working principle: When the roll 1 of the roll press rotates around its own axis, the laser 203 uses the laser with a narrow pulse width and a high power density to act on the surface of the roll 1 to form a cleaning area with a certain length. Under the combined action of mechanisms such as rapid photo-vibration vaporization, decomposition, and plasma stripping, the attached substances are separated from the surface of the roll 1, and the dust suction mechanism 3 sucks away the dust vaporized or decomposed by the laser 203 through the dust suction hopper 301; when the roll 1 rotates one week, the cleaning of this area is completed. Subsequently, the sliding table 202 moves to the next position under the drive of the stepper motor to start cleaning until the cleaning is completed. During this process, the dust suction mechanism 3 follows the sliding table 202 and moves synchronously through the connecting frame 303 to suck away the dust vaporized or decomposed by the laser 203, effectively preventing the scraped dust from polluting the production environment. Embodiment 2

[0032] On the basis of Embodiment 1, the present invention further proposes the specific structure of the scraper mechanism 4.

[0033] As Figure 1 、 Figure 4 and Figure 5 shown, the scraper mechanism 4 includes two oppositely arranged mounting plates 401 that can move horizontally towards the roller 1. A scraper bracket 402 is rotatably mounted between the two mounting plates 401, that is, the end of the scraper bracket 402 is rotatably connected to the mounting plate 401. And an angle positioning wheel 405 that can be tangent to the roller 1 is rotatably mounted on the upper part of the scraper bracket 402. A blade pressing cover is mounted on the lower part, and a scraper assembly 403 for scraping impurities on the circumferential surface of the roller 1 is arranged between the blade pressing cover and the scraper bracket 402.

[0034] The cross-sectional shape of the scraper bracket 402 is approximately an L-shaped structure. A groove is formed at the end of the scraper bracket 402 opposite to the blade pressing cover. The angle positioning wheel 405 is rotatably mounted in the groove. The axis of the angle positioning wheel 405 is parallel to the axis of the roller 1, and the circumferential surface of the angle positioning wheel 405 protrudes from the scraper bracket 402, so that it can be in contact with the roller 1 one step ahead.

[0035] Among them, two angle positioning wheels 405 are provided and symmetrically distributed on the scraper bracket 402 to keep the force balance of the scraper bracket 402 when it is in contact.

[0036] As described above, the scraper assembly 403 includes a first scraper and a second scraper that overlap each other. The first scraper is located below the second scraper, and the first scraper protrudes from the second scraper. A clamping groove for mounting the scraper assembly 403 is formed between the blade pressing cover and the scraper bracket 402, and a convex platform for positioning the first scraper is provided on one side of the blade pressing cover close to the clamping groove to ensure the stability of the scraper installation.

[0037] The roller 1 of the roller press can rotate around its own axis. When the mounting plate 401 drives the scraper assembly 403 to move towards the roller 1, the angle positioning wheel 405 first contacts the surface of the roller 1, and then the scraper bracket 402 automatically adjusts the angle according to the distance pushed out by the mounting plate 401 until the blade of the scraper assembly 403 is attached to the surface of the roller 1, and the impurity removal work is realized as the roller 1 rotates.

[0038] A support plate 407 is arranged on the outer side of the mounting plate 401. An expansion and contraction assembly 408 for driving the mounting plate 401 to horizontally move towards the rolling roll 1 is installed on the support plate 407, and the output end of the expansion and contraction assembly 408 is connected to the mounting plate 401. The support plate 407 is connected to the frame of the roll press equipment. Therefore, supported by the support plate 407, the expansion and contraction assembly 408 can drive the mounting plate 401 to horizontally move towards the body of the rolling roll 1 until the angle positioning wheel 405 and the blade of the scraper assembly 403 are abutted against the outer circumferential surface of the rolling roll 1. The expansion and contraction assembly 408 preferably adopts an existing air cylinder, and the air cylinder is equipped with an extension limit mechanism by itself. Through this extension limit mechanism, the extension length of the output end of the expansion and contraction assembly 408 can be controlled, thereby realizing the adjustment of the blade contact force between the scraper assembly 403 and the rolling roll 1.

[0039] Furthermore, both ends of the scraper bracket 402 are rotatably connected to the corresponding mounting plate 401 through pin shafts. A locking assembly for restricting the rotation of the pin shaft inside the scraper bracket 402 is arranged on the scraper bracket 402, and a scraper limit assembly for defining the angular range of rotation of the pin shaft relative to the mounting plate 401 is arranged on the outer side of the mounting plate 401.

[0040] The locking assembly includes a positioning groove opened on the side of the scraper bracket 402 opposite to the scraper assembly 403. A positioning hole is opened at one end of the bottom of the positioning groove; a limit screw capable of moving along the axial direction of the pin shaft is arranged in the positioning groove, and one end of the limit screw can be screwed through the positioning hole and abutted against the circumferential surface of the pin shaft.

[0041] The length direction of the positioning groove is parallel to the axial direction of the pin shaft. One end of the limit screw can be screwed and embedded into the positioning groove. When changing the tool, the limit screw can be loosened to move it along the length direction of the positioning groove to the positioning hole, and then the limit screw is tightened so that one end of it passes through the positioning hole and abuts against the pin shaft, thereby realizing the fixed connection between this end of the pin shaft and the scraper bracket 402.

[0042] The scraper limit assembly includes a limit block 411 and a stop block 412 for restricting the rotation range of the limit block 411. The stop block 412 is fixedly installed on the outer side of the mounting plate 401, and the limit block 411 is fixedly installed at the end of the pin shaft. When one end of the pin shaft is fixedly connected to the scraper bracket 402 under the action of the locking assembly, the pin shaft, the limit block 411 and the scraper bracket 402 can rotate synchronously, and the stop block 412 arranged on the outer side of the mounting plate 401 is located on the rotation path of the protrusion at the end of the limit block 411, which can limit the rotation angle of the limit block 411, thereby realizing the rotation angle range of the pin shaft rotation.

[0043] In addition, a dust collection assembly 406 for collecting impurities scraped from the surface of the rolling roll 1 is arranged below the scraper bracket 402. The dust collection assembly 406 is collected in the form of a material box.

[0044] The dust collecting assembly 406 includes a dust collecting box and a base for supporting the dust collecting box, the base is fixedly mounted on the lower part of the support plate 407, and the two ends of the dust collecting box are respectively placed on the corresponding bases. The scraped dust particles can be collected by the dust collecting box, and a handle is also provided on one side of the dust collecting box to facilitate the removal of the dust collecting box; and the dust collecting assembly 406 can also prevent the scraped impurities from falling on the surface of the pole piece, thereby improving the quality of pole piece production. Embodiment 3

[0045] On the basis of the first and second embodiments, the present invention further proposes an installation structure of the wiping roller dust removal device relative to the roller 1 .

[0046] like Figure 6 As shown, the roller press usually has two rollers 1, which are arranged in an upper and lower structure with opposite rotation directions so that the pole piece can pass through the two rollers to be rolled. In order to ensure the rolling quality of the pole piece, both rollers 1 need to be cleaned, so each roller 1 has a corresponding roller dust removal device.

[0047] The upper roller 1 rotates counterclockwise, the laser cleaning mechanism 2 is arranged on the right side of the roller 1, the dust suction mechanism 3 is arranged above the roller 1, and the scraper mechanism 4 is arranged below the laser cleaning mechanism 2; the lower roller 1 rotates counterclockwise, the laser cleaning mechanism 2 is inverted on the right side of the roller 1, the dust suction mechanism 3 is arranged below the roller 1, and the scraper mechanism 4 is arranged on the left side of the roller 1.

[0048] When the laser 203 acts on the attachments on the surface of the roller 1 to vaporize or decompose them, as the roller 1 rotates, the dust suction mechanism 3 arranged above and below the roller 1 sucks away the vaporized or decomposed dust to achieve initial cleaning; at the same time, the scraper mechanism 4 extends through the output end of the telescopic component 408, so that the scraper mouth of the first scraper is attached to the roller 1, and as the roller 1 rotates, the attachments on the surface of the roller 1 are scraped off and fall into the dust collection box below, achieving comprehensive cleaning. Embodiment 4

[0049] On the basis of the first, second and third embodiments, the present invention further proposes a method for removing dust from a roller of a roller press, comprising the following steps.

[0050] S1. When the roller 1 of the roller press rotates around its own axis, the laser 203 outputs a laser beam that passes through the light-transmitting slit 302 and acts on the surface of the roller 1 to clean the attached matter by laser.

[0051] Laser 203 uses narrow pulse width and high power density laser to act on the surface of roller 1 to form a cleaning area of ​​a certain length. Under the combined action of rapid light vibration vaporization, decomposition and plasma stripping mechanisms, the attached matter is separated from the surface of roller 1; when roller 1 rotates one circle, the cleaning of the area is completed.

[0052] S2. After the attachments cleaned by laser are separated from the surface of the roller 1, the dust collecting mechanism 3 sucks away the dust gasified or decomposed by the laser 203 through the dust collecting hopper 301, thereby achieving the initial cleaning. The dust in the dust collecting hopper 301 can be sucked away and discharged along the dust collecting duct by the vacuum cleaner to avoid affecting the environment.

[0053] S3. During the initial laser cleaning, the scraper mechanism 4 is extended through the output end of the telescopic component 408, so that the scraper mouth of the scraper component 403 is attached to the roller 1. As the roller 1 rotates, the attachments on the surface of the roller 1 are scraped off and fall into the dust collecting component 406 below, achieving comprehensive cleaning.

[0054] The roller 1 of the roller press can rotate around its own axis. When the mounting plate 401 drives the scraper assembly 403 to move toward the roller 1, the angle positioning wheel 405 first contacts the surface of the roller 1, and the scraper bracket 402 then automatically adjusts the angle according to the distance pushed out by the mounting plate 401 until the blade of the scraper assembly 403 is attached to the surface of the roller 1, and the impurity removal work is achieved as the roller 1 rotates.

[0055] In summary, the present invention proposes a roller-wiping dust removal device for a roller press, which uses a laser to act on the surface of the roller 1 to be cleaned, so that the attached matter is separated from the surface of the roller 1, and then a negative pressure vacuum cleaner is used to suck away the attached matter through the vacuum mechanism 3 to achieve the initial cleaning, and then when the roller 1 rotates, the impurities on the surface of the roller 1 are removed again by a scraper, thereby cleaning the roller surface of the roller 1 in many aspects and comprehensively; the device has a simple structure, good cleaning effect, and relatively low cost, solves the problems of incomplete cleaning of the existing mechanism and short scraper life, and improves the work efficiency of pole piece manufacturing.

[0056] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying 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, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like 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.

[0057] In the description of the present invention, it should be noted that, unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific circumstances.

[0058] Based on the ideal embodiments of the present invention as inspiration, through the above description, relevant personnel can completely make various changes and modifications without departing from the technical idea of this invention. The technical scope of this invention is not limited to the content in the specification, and the technical scope must be determined according to the scope of the claims.

Claims

1. A roller press wiping roller dust removal device, characterized in that: It comprises a laser cleaning mechanism (2), a dust suction mechanism (3) and a scraper mechanism (4) arranged on the circumference of a roller (1), wherein the laser cleaning mechanism (2) comprises a laser (203) capable of reciprocating along the axial direction of the roller (1); The dust suction mechanism (3) comprises a dust suction hopper (301) that can move synchronously with the laser (203); a light-transmitting slit (302) is provided on a side of the dust suction hopper (301) close to the laser (203); a laser beam output by the laser (203) passes through the light-transmitting slit (302) to the circumferential surface of the roller (1); The scraper mechanism (4) comprises a scraper support (402) which can move horizontally towards the roller (1) and automatically adjust its angle, and a scraper assembly (403) for scraping impurities off the circumferential surface of the roller (1) is mounted on the scraper support (402).

2. The roller press wiping roller dust removal device according to claim 1 is characterized in that: The laser cleaning mechanism (2) further comprises a linear module (204) parallel to the axis of the roller (1), a slide table (202) is provided at the output end of the linear module (204), and the laser (203) is mounted on the slide table (202).

3. The roller press wiping roller dust removal device according to claim 2, characterized in that: The dust collecting mechanism (3) further comprises a guide rail (304) parallel to the axis of the roller (1); the dust collecting hopper (301) is slidably mounted on the guide rail (304) via a slider (305); and the dust collecting hopper (301) is fixedly connected to the slide table (202) via a connecting frame (303).

4. The roller press wiping roller dust removal device according to claim 3 is characterized in that: Both ends of the linear module (204) are provided with photoelectric switches (206), a sensing sheet (205) capable of passing through the photoelectric switch (206) is fixedly mounted on the slide (202), and both ends of the connecting frame (303) are fixedly connected to the sensing sheet (205) and the dust collecting hopper (301), respectively.

5. The roller press wiping roller dust removal device according to claim 1, characterized in that: An angle positioning wheel (405) capable of being tangent to the roller (1) is rotatably mounted on the upper portion of the scraper support (402); the angle positioning wheel (405) and the axis of the roller (1) are parallel to each other, and the scraper assembly (403) is mounted on the lower portion of the scraper support (402).

6. The roller press wiping roller dust removal device according to claim 5, characterized in that: Two mounting plates (401) are arranged opposite to each other at the two ends of the scraper support (402), and the end of the scraper support (402) is rotatably connected to the mounting plate (401); a support plate (407) is arranged on the outer side of the mounting plate (401), and a telescopic component (408) for driving the mounting plate (401) to move horizontally toward the roller (1) is installed on the support plate (407), and the output end of the telescopic component (408) is connected to the mounting plate (401).

7. The roller press wiping roller dust removal device according to claim 6, characterized in that: A limit block (411) is arranged on the outer side of the mounting plate (401), the limit block (411) is connected to the scraper bracket (402) via a pin shaft, and the end of the limit block (411) has a protrusion; two stop blocks (412) are also arranged on the outer side of the mounting plate (401), and the two stop blocks (412) are located on the rotation path of the protrusion.

8. The roller press wiping roller dust removal device according to claim 7, characterized in that: The scraper assembly (403) comprises a first scraper and a second scraper which overlap each other, wherein the first scraper is located below the second scraper and the first scraper protrudes from the second scraper.

9. The roller press wiping roller dust removal device according to claim 8, characterized in that: A blade pressing cover is installed at the bottom of the scraper support (402), a clamping groove for installing a scraper assembly (403) is formed between the blade pressing cover and the scraper support (402), and a boss for positioning the first scraper is provided on one side of the blade pressing cover close to the clamping groove.

10. The roller press wiping roller dust removal device according to claim 9, characterized in that: A dust collecting assembly (406) for collecting impurities scraped from the surface of the roller (1) is provided below the scraper bracket (402), the dust collecting assembly (406) comprising a dust collecting box and a base for supporting the dust collecting box, the base being fixedly mounted on the lower part of the support plate (407), and the two ends of the dust collecting box are respectively placed on the corresponding bases.

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