Roll surface cleaning device and casting piece equipment

Abstract

The utility model provides a roller surface cleaning device and piece casting equipment, and relates to the technical field of roller surface cleaning. The roller surface cleaning device comprises a base, a scraping piece and at least one cleaning piece. The scraping part is connected with the base, the scraping part is provided with at least one acting surface, the acting surface is provided with a first side edge, and the first side edge is used for being in contact with the roller surface of a to-be-cleaned roller, so that when the to-be-cleaned roller rotates around the axial direction of the to-be-cleaned roller, the first side edge can scrape impurities on the roller surface of the to-be-cleaned roller; the cleaning part is connected with the base, located on one side of the acting face and used for removing residual impurities on the acting face. In the roller surface cleaning device provided by the invention, the scraping part is used for cleaning the roller surface of the to-be-cleaned roller, the cleaning part is arranged to timely clean the residual impurities on the scraping part, the scraping part does not need to be frequently replaced, the scraping part does not need to be manually and frequently cleaned, and the cleaning efficiency of the roller surface cleaning device on the roller surface of the to-be-cleaned roller can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of roller surface cleaning, and in particular to a roller surface cleaning device and a casting device. Background Art

[0002] Lithium-ion battery separators are divided into two categories: dry process and wet process according to different preparation processes. Among them, the wet process is to mix polypropylene (PP) or polyethylene (PE) with white oil, heat and melt it in an extruder to form a uniform melt mixture, and then cool it down through a casting process for phase separation to obtain a membrane containing micropores. The membrane is then heated to a temperature close to the melting point, biaxially stretched to orient the molecular chains, and finally kept warm for a certain period of time. The residual solvent is then washed out with volatile substances to prepare an interconnected microporous membrane material.

[0003] In the wet process of lithium-ion battery separators, rollers, such as chilled rollers, are required. However, as production progresses, impurities such as white oil and other particles will remain on the roller surface, which will contaminate the separator and reduce the yield of the separator.

[0004] At present, the method of cleaning impurities on the roller surface is mainly to manually clean the roller surface using cleaning tools such as scrapers or non-woven fabrics; however, after the cleaning tool has been used to clean the roller surface for a period of time, it is necessary to manually clean the cleaning tool or replace the cleaning tool from time to time, resulting in low cleaning efficiency of the cleaning tool on the roller surface. Utility Model Content

[0005] The purpose of the present application is to provide a roller surface cleaning device and a casting device, which aims to improve the technical problem of low cleaning efficiency of the roller surface by the existing roller surface cleaning device.

[0006] In the first aspect, the present application provides a roller surface cleaning device, which includes a base, a scraper and at least one cleaning member; the scraper is connected to the base, the scraper has at least one active surface, the active surface has a first side edge, the first side edge is used to contact the roller surface of the roller to be cleaned, so that when the roller to be cleaned rotates around the axial direction of the roller to be cleaned, the first side edge can scrape off impurities on the roller surface of the roller to be cleaned; the cleaning member is connected to the base, the cleaning member is located on one side of the active surface, and the cleaning member is used to remove impurities remaining on the active surface.

[0007] The roller surface cleaning device provided in the present application comprises a base, a scraper and at least one cleaning member, the scraper and the cleaning member are both connected to the base, the scraper is used to clean the roller surface of the roller to be cleaned, and the cleaning member can promptly clean the impurities remaining on the scraper, which is beneficial to avoid the situation where the roller surface cleaning device has a poor cleaning effect on the roller surface of the roller to be cleaned due to a large amount of impurities remaining on the scraper. There is no need to frequently replace the scraper or frequently clean the scraper manually, which can improve the cleaning efficiency of the roller surface cleaning device on the roller surface of the roller to be cleaned.

[0008] In combination with the first aspect, in an optional embodiment of the present application, the scraping member is connected to the base through a telescopic member, so that when the telescopic member is extended, the first side edge can contact the roller surface of the roller to be cleaned.

[0009] In the above technical solution, the scraping member can be moved closer to or farther away from the roller surface of the roller to be cleaned by extending or shortening the telescopic member, so that the first side edge of the scraping member can contact or separate from the roller surface of the roller to be cleaned, thereby enabling the first side edge of the scraping member to scrape off the impurities on the roller surface of the roller to be cleaned when it is necessary to clean the impurities on the roller surface of the roller to be cleaned, and the first side edge of the scraping member can contact the roller surface of the roller not to be cleaned when it is not necessary to clean the impurities on the roller surface of the roller to be cleaned.

[0010] In combination with the first aspect, in an optional embodiment of the present application, the cleaning member includes a first cleaning component, the first cleaning component has a cleaning surface, the cleaning surface has a second side edge, and when the telescopic member is shortened, the second side edge can contact the active surface so that impurities on the active surface can be transferred to the cleaning surface.

[0011] In the above technical solution, by shortening the telescopic part, the scraping part can move away from the roller to be cleaned, and the side edge (i.e., the second side edge) on the cleaning surface of the first cleaning part has a scraping effect on the active surface of the scraping part, so that impurities remaining on the active surface of the scraping part can be transferred to the cleaning surface of the first cleaning part, thereby realizing the cleaning effect of the first cleaning part on the active surface of the scraping part.

[0012] In combination with the first aspect, in an optional embodiment of the present application, the cleaning surface is inclined relative to the active surface, the cleaning surface has a first end and a second end that are oppositely arranged, the second side edge is located at the first end, and the second end is located on the side of the first end away from the roller to be cleaned; the first cleaning component has a chamber inside, and the cleaning surface has a through hole connected to the chamber.

[0013] In the above technical solution, since the cleaning surface is inclined relative to the active surface, and the second end of the cleaning surface is located on the side of the first end away from the roller to be cleaned, during the process in which the second side edge of the cleaning surface of the first cleaning component scrapes the scraper, there is a larger space between the cleaning surface and the active surface, so that the impurities scraped from the active surface of the scraper can be temporarily accommodated in the space area between the cleaning surface and the active surface, thereby facilitating the impurities accommodated between the cleaning surface and the active surface to enter the chamber in the first cleaning component from the through holes on the cleaning surface, thereby enabling the first cleaning component to clean the active surface of the scraper and accommodate the impurities scraped from the scraper.

[0014] In combination with the first aspect, in an optional embodiment of the present application, the scraping member and the first cleaning member are both plate-shaped.

[0015] In the above technical solution, the scraping member is in the shape of a plate, which facilitates the scraping member to scrape impurities from the roller surface of the roller to be cleaned; the first cleaning component is in the shape of a plate, which facilitates the first cleaning component to scrape the active surface of the scraping member and clean the impurities on the active surface of the scraping member.

[0016] In combination with the first aspect, in an optional embodiment of the present application, the cleaning member includes a second cleaning member, which is a suction member. The suction member has an inner cavity inside, and the suction member has a liquid suction port arranged toward the active surface. The liquid suction port is connected to the inner cavity, and the liquid suction port is used to absorb impurities on the active surface.

[0017] In the above technical solution, impurities on the working surface of the scraper are sucked away by the liquid suction port of the second cleaning component, thereby achieving the cleaning effect of the second cleaning component on the working surface of the scraper.

[0018] In combination with the first aspect, in an optional embodiment of the present application, the active surface is configured to be tilted relative to the axial direction of the roller to be cleaned, and the first side has a third end and a fourth end relative to each other; the liquid suction port has a first suction port and a second suction port, and the first suction port and the second suction port are both connected to the inner cavity, the first suction port is arranged at the third end and is used to absorb impurities at the third end, and the second suction port is arranged at the fourth end and is used to absorb impurities at the fourth end.

[0019] In the above technical scheme, the active surface is configured to be tilted relative to the axial direction of the roller to be cleaned, so that impurities on the active surface can flow toward the inclined end of the active surface under the action of gravity, and then the impurities are sucked out through the liquid suction port located at the end of the active surface, thereby more thoroughly and conveniently removing impurities remaining on the active surface of the scraper.

[0020] In combination with the first aspect, in an optional embodiment of the present application, the roller surface cleaning device also includes a suction power member, the suction power member is connected to the inner cavity, and the suction power member is used to form a negative pressure in the inner cavity.

[0021] In the above technical solution, the setting of the suction power part provides power for the suction port to absorb impurities on the action surface.

[0022] In combination with the first aspect, in an optional embodiment of the present application, the roller surface cleaning device also includes a filter and a reservoir, the inner cavity, the filter and the reservoir are connected in sequence, the filter is used to receive impurities in the inner cavity and filter the impurities, and the reservoir is used to store the liquid phase filtered by the filter.

[0023] In the above technical solution, the filter can be set to filter the liquid impurities removed from the cleaning roller; the storage device can be set to store the liquid impurities after filtering, and the stored liquid can be used as raw material for subsequent recycling.

[0024] In combination with the first aspect, in an optional embodiment of the present application, the roller surface cleaning device also includes a slide rail extending in a direction parallel to the axial direction of the roller to be cleaned, and the base is slidably connected to the slide rail so that the base can move relative to the roller to be cleaned along the axial direction of the roller to be cleaned.

[0025] In the above technical scheme, the setting of the slide rail can enable the base to move relative to the roller to be cleaned along the axial direction of the roller to be cleaned, thereby driving the scraping element and the cleaning element connected to the base to move back and forth relative to the roller to be cleaned along the axial direction of the roller to be cleaned, thereby realizing a more comprehensive impurity cleaning operation on the roller surface of the roller to be cleaned.

[0026] In combination with the first aspect, in an optional embodiment of the present application, the roller surface cleaning device also includes a spur rack, a gear, and a driving member; the extension direction of the spur rack is parallel to the extension direction of the slide rail, the gear and the spur rack are meshed with each other, the driving member is used to drive the gear to rotate, and the driving member is connected to the base, so that when the driving member drives the gear to rotate, the gear can move along the spur rack and drive the base to move along the slide rail.

[0027] In the above technical scheme, through the mutual cooperation of the spur rack, the gear, the driving member and the slide rail, in the process that the driving member drives the gear to rotate and the gear moves along the spur rack, the driving member can move along the extension direction of the spur rack with the gear, and the base connected to the driving member moves along the extension direction of the slide rail, thereby driving the scraping member and the cleaning member connected to the base to move along the axial direction of the roller to be cleaned relative to the roller to be cleaned, thereby realizing a more comprehensive impurity cleaning operation on the roller surface of the roller to be cleaned.

[0028] In a second aspect, the present application provides a sheet casting device, which includes: a die, a chilled roller, and a roller surface cleaning device as provided in any one of the first aspects above; wherein the die is used to extrude a melt, the chilled roller is used to receive and cool the melt extruded by the die so that the melt forms a sheet, and the chilled roller is a roller to be cleaned.

[0029] Since the casting equipment provided in the present application has the roller surface cleaning device provided in the first aspect above, the scraping member in the roller surface cleaning device can clean the white oil and impurities such as particles remaining on the roller surface of the chilled roller (i.e., the roller to be cleaned), and the cleaning member in the roller surface cleaning device can promptly clean the impurities remaining on the scraping member, thereby improving the cleaning efficiency of the roller surface cleaning device on the roller surface of the chilled roller.

[0030] In combination with the second aspect, in an optional embodiment of the present application, the casting equipment also includes an oil removal roller, which is arranged downstream of the roller surface cleaning device along the rotation direction of the chilled roller. The axial direction of the oil removal roller is parallel to the axial direction of the chilled roller, and the roller surface of the oil removal roller is used to contact the roller surface of the chilled roller.

[0031] In the above technical scheme, along the rotation direction of the chilled roller, the degreasing roller is arranged downstream of the roller surface cleaning device, and the degreasing roller further removes the white oil and other liquid phases remaining on the roller surface of the chilled roller; the scraping member in the roller surface cleaning device scrapes the roller surface of the chilled roller, which will cause the white oil and other liquid phases remaining on the roller surface of the chilled roller to be unevenly distributed on the chilled roller. The degreasing roller is arranged downstream of the roller surface cleaning device, and the degreasing roller and the roller surface of the chilled roller are in contact with each other, which can make the white oil and other liquid phases remaining on the roller surface of the chilled roller more evenly distributed. When the subsequent die head extrude the melt for casting, the product yield of the prepared membrane can be improved.

[0032] In conjunction with the second aspect, in an optional embodiment of the present application, the casting device further includes a cooling trough and a stripping roller. Along the rotation direction of the chilled roller, the cooling trough is arranged downstream of the die head, the stripping roller is arranged downstream of the cooling trough, and the roller surface cleaning device is arranged downstream of the stripping roller; the cooling trough is used to contain a cooling liquid, the cooling liquid in the cooling trough is used to contact the sheet on the roller surface of the chilled roller, and the stripping roller is used to strip the sheet on the chilled roller.

[0033] In the above technical solution, the chilled roller can cool and shape the melt extruded from the die head, and the coolant in the cooling tank can further cool the cooled and formed membrane; the stripping roller is set to strip and remove the membrane on the chilled roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 A schematic structural diagram of the first perspective of the casting equipment provided in an embodiment of the present application.

[0036] Figure 2 A schematic structural diagram of the second perspective of the casting equipment provided in an embodiment of the present application.

[0037] Figure 3 A schematic structural diagram of the casting equipment from a third perspective provided in an embodiment of the present application.

[0038] Figure 4 This is a schematic structural diagram of a first example of a roller surface cleaning device provided in an embodiment of the present application.

[0039] Figure 5 This is a schematic structural diagram of a second example of the roller surface cleaning device provided in an embodiment of the present application.

[0040] Figure 6 A schematic structural diagram of a roller surface cleaning device of a first example provided in an embodiment of the present application when in a first state.

[0041] Figure 7 A schematic structural diagram of a first viewing angle of a roller surface cleaning device of a first example provided in an embodiment of the present application when the device is in a second state.

[0042] Figure 8 This is a structural schematic diagram of a second viewing angle of a roller surface cleaning device of a first example provided in an embodiment of the present application when the device is in a second state.

[0043] Icons: 10-die; 20-chilled roller; 30-roller surface cleaning device; 310-base; 320-scraper; 321-active surface; 3211-first side; 3212-third end; 3213-fourth end; 330-cleaning member; 331-first cleaning member; 3311-cleaning surface; 3312-second side; 3313-first end; 3314-second end; 332-second cleaning member; 3321-liquid suction port; 3322-first suction port; 3323-second suction port; 340-telescopic member; 350-filter; 360-storage container; 370-slide rail; 380-spur rack; 391-gear; 392-driving member; 40-oil removal roller; 50-cooling trough; 60-peeling roller. DETAILED DESCRIPTION

[0044] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification of this application and the above-mentioned drawings and any variations thereof are intended to cover non-exclusive inclusions.

[0046] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0047] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0048] In the description of the embodiments of the present application, the orientation or position relationship indicated by the technical terms "thickness", "up", "down", "inside", etc. is based on the orientation or position relationship shown in the accompanying drawings, and is only for the convenience of describing the embodiments of the present application 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 a limitation on the embodiments of the present application.

[0049] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "connection" and "fixation" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0050] This embodiment provides a sheet casting device, Figure 1 For a first perspective structural diagram of the casting device provided in the embodiment of the present application, please refer to Figure 1 The casting equipment includes a die head 10, a chilled roller 20 and a roller surface cleaning device 30.

[0051] In the casting equipment, the die head 10 is used to extrude the melt; the chilled roller 20 is used to receive and cool the melt extruded by the die head 10 so that the melt is cooled and formed into a sheet (i.e., a membrane); the roller surface cleaning device 30 is used to remove impurities (e.g., white oil and other particles, etc.) on the roller surface of the chilled roller 20 (i.e., the roller to be cleaned).

[0052] In some optional embodiments of the present application, the casting device further includes a stripping roller 60, which is arranged along the rotation direction ( Figure 1 The rotation direction of the chilled roller 20 is clockwise, the stripping roller 60 is arranged downstream of the die head 10, and the stripping roller 60 is used to strip the sheet on the chilled roller 20, and the roller surface cleaning device 30 is arranged downstream of the stripping roller 60.

[0053] Along the rotation direction of the chilled roller 20, the die head 10, the stripping roller 60 and the roller surface cleaning device 30 are arranged in sequence, so that after the molten material extruded by the die head 10 is cooled and formed on the chilled roller 20, the cooled and formed sheet is removed from the chilled roller 20 by the stripping roller 60. During the rotation of the chilled roller 20, the roller surface cleaning device 30 can immediately clean the roller surface of the chilled roller 20 for impurities, without stopping the chilled roller 20, so that the entire casting process can be carried out continuously, and the production efficiency of the entire casting equipment can be improved.

[0054] In some optional embodiments of the present application, the casting device further comprises a cooling trough 50. Along the rotation direction of the chilled roller 20, the cooling trough 50 is arranged downstream of the die head 10, the stripping roller 60 is arranged downstream of the cooling trough 50, and the roller surface cleaning device 30 is arranged downstream of the stripping roller 60.

[0055] The cooling tank 50 is used to contain cooling liquid. The cooling liquid in the cooling tank 50 is used to contact the sheet on the roller surface of the chilled roller 20. The cooling liquid in the cooling tank 50 can further cool the sheet (i.e., the membrane) after cooling and forming on the chilled roller 20.

[0056] Figure 2 A schematic diagram of the structure of the second perspective of the casting device provided in the embodiment of the present application ( Figure 2 The cooling tank 50 is not shown. Figure 3 A schematic diagram of the structure of the casting device provided by the embodiment of the present application from a third perspective ( Figure 3 The cooling slot 50 is not shown in FIG. Figures 1 to 3 In some optional embodiments of the present application, the casting equipment also includes a degreasing roller 40; along the rotation direction of the chilled roller 20, the degreasing roller 40 is arranged downstream of the roller surface cleaning device 30, the axial direction of the degreasing roller 40 is parallel to the axial direction of the chilled roller 20, and the roller surface of the degreasing roller 40 is used to contact the roller surface of the chilled roller 20.

[0057] Along the rotation direction of the chilled roller 20, the degreasing roller 40 is arranged downstream of the roller surface cleaning device 30, and the degreasing roller 40 further removes the white oil and other liquid phases remaining on the roller surface of the chilled roller 20; after the roller surface cleaning device 30 removes impurities from the roller surface of the chilled roller 20, the white oil and other liquid phases remaining on the roller surface of the chilled roller 20 will be unevenly distributed on the chilled roller 20 (that is, the thickness of the liquid phase covering the roller surface of the chilled roller 20 is uneven). The degreasing roller 40 is arranged downstream of the roller surface cleaning device 30, and the roller surface of the degreasing roller 40 is in contact with the roller surface of the chilled roller 20. When the rotation directions of the degreasing roller 40 and the chilled roller 20 are opposite, the white oil and other liquid phase impurities on the roller surface of the chilled roller 20 can be removed. The distribution of the white oil and other liquid phases remaining on the roller surface of the chilled roller 20 is also made more uniform. When the die head 10 extrude the melt for casting, the product yield of the obtained membrane can be improved.

[0058] Figure 4 This is a schematic structural diagram of a first example of a roller surface cleaning device 30 provided in an embodiment of the present application. Figure 5 This is a structural schematic diagram of a second example of the roller surface cleaning device 30 provided in an embodiment of the present application; please refer to Figures 1 to 5 The roller surface cleaning device 30 includes a base 310 , a scraping member 320 and at least one cleaning member 330 .

[0059] The scraper 320 is connected to the base 310, and has at least one action surface 321. The action surface 321 has a first side edge 3211. The first side edge 3211 is used to contact the roller surface of the roller to be cleaned, so that when the roller to be cleaned rotates around the axial direction of the roller to be cleaned, the first side edge 3211 can scrape impurities on the roller surface of the roller to be cleaned. The cleaning member 330 is connected to the base 310, and the cleaning member 330 is located on one side of the action surface 321. The cleaning member 330 is used to remove impurities remaining on the action surface 321.

[0060] In the roller surface cleaning device 30 provided in the present application, the scraping member 320 is used to clean the roller surface of the roller to be cleaned, and the cleaning member 330 can promptly clean the impurities remaining on the scraping member 320, which is helpful to avoid the situation where the roller surface cleaning device 30 has a poor cleaning effect on the roller surface of the roller to be cleaned due to a large amount of impurities remaining on the scraping member 320. There is no need to frequently replace the scraping member 320, nor is there a need to frequently clean the scraping member 320 manually, which can improve the cleaning efficiency of the roller surface cleaning device 30 on the roller surface of the roller to be cleaned.

[0061] In some optional embodiments of the present application, the scraping member 320 is connected to the base 310 via a telescopic member 340; Figure 6 This is a structural schematic diagram of a first example roller surface cleaning device 30 provided in an embodiment of the present application when it is in a first state. Figure 7This is a structural schematic diagram of a first perspective of a roller surface cleaning device 30 of a first example provided in an embodiment of the present application when it is in a second state. Figure 8 FIG. 1 is a structural diagram of a roller surface cleaning device 30 of a first example provided in an embodiment of the present application in a second state at a second viewing angle, see FIG. Figures 1 to 8 The first state is that the telescopic member 340 is in an extended state, and the second state is that the telescopic member 340 is in a shortened state; the scraping member 320 is connected to the base 310 through the telescopic member 340, so that when the telescopic member 340 is extended, the first side 3211 can contact the roller surface of the roller to be cleaned.

[0062] By extending or shortening the telescopic member 340, the scraping member 320 can be close to or away from the roller surface of the roller to be cleaned, so that the first side edge 3211 of the scraping member 320 can contact or separate from the roller surface of the roller to be cleaned, so that when it is necessary to clean impurities on the roller surface of the roller to be cleaned, the first side edge 3211 of the scraping member 320 can scrape off the impurities on the roller surface of the roller to be cleaned, and when it is not necessary to clean the impurities on the roller surface of the roller to be cleaned, the first side edge 3211 of the scraping member 320 can contact the roller surface of the roller not to be cleaned.

[0063] As an example, the telescopic member 340 may be a linear cylinder or a linear motor, etc.

[0064] It should be noted that in other optional embodiments of the present application, other methods can also be used to make the first side 3211 of the scraper 320 contact the roller surface of the roller to be cleaned. For example, the base 310 in the roller surface cleaning device 30 can be connected to a retractable component (for example, a linear cylinder or a linear motor, etc.). By extending or shortening the retractable component, the entire base 310 can be moved closer to or farther away from the roller to be cleaned, and then the scraper 320 connected to the base 310 can be moved closer to or farther away from the roller to be cleaned.

[0065] In some optional embodiments of the present application, the cleaning member 330 includes a first cleaning member 331, the first cleaning member 331 has a cleaning surface 3311, the cleaning surface 3311 has a second side edge 3312, and when the telescopic member 340 is shortened, the second side edge 3312 can contact the active surface 321 so that impurities on the active surface 321 can be transferred to the cleaning surface 3311.

[0066] By shortening the telescopic member 340, when the scraping member 320 moves away from the roller to be cleaned, the side edge (i.e., the second side edge 3312) on the cleaning surface 3311 of the first cleaning member 331 has a scraping effect on the active surface 321 of the scraping member 320, so that impurities remaining on the active surface 321 of the scraping member 320 can be transferred to the cleaning surface 3311 of the first cleaning member 331, thereby realizing the cleaning effect of the first cleaning member 331 on the active surface 321 of the scraping member 320.

[0067] Furthermore, in some optional embodiments of the present application, the cleaning surface 3311 is inclined relative to the active surface 321, the cleaning surface 3311 has a first end 3313 and a second end 3314 that are relatively arranged, the second side 3312 is located at the first end 3313, and the second end 3314 is located on the side of the first end 3313 away from the roller to be cleaned; the first cleaning component 331 has a chamber inside (not shown in the figure), and the cleaning surface 3311 has a plurality of through holes (not shown in the figure) connected to the chamber.

[0068] Since the cleaning surface 3311 is inclined relative to the action surface 321, and the second end 3314 of the cleaning surface 3311 is located on the side of the first end 3313 away from the roller to be cleaned, when the second side edge 3312 on the cleaning surface 3311 of the first cleaning member 331 scrapes the scraping element 320, there is a large space between the cleaning surface 3311 and the action surface 321, so that the impurities scraped off from the action surface 321 of the scraping element 320 can be temporarily accommodated in the space area between the cleaning surface 3311 and the action surface 321 (such as Figure 8 The area within the dotted box in the figure) makes it easier for impurities contained between the cleaning surface 3311 and the active surface 321 to enter the chamber in the first cleaning component 331 from the through holes on the cleaning surface 3311, so that the first cleaning component 331 cleans the active surface 321 of the scraping member 320 and contains the impurities scraped from the scraping member 320.

[0069] In some optional embodiments of the present application, the scraping member 320 and the first cleaning member 331 are both in the shape of a plate. The scraping member 320 is in the shape of a plate, so that the scraping member 320 can scrape impurities from the roller surface of the roller to be cleaned; the first cleaning member 331 is in the shape of a plate, so that the first cleaning member 331 can scrape the action surface 321 of the scraping member 320, so that the first cleaning member 331 can clean the impurities on the action surface 321 of the scraping member 320.

[0070] Further, in some optional embodiments of the present application, two opposite surfaces of the scraping member 320 in the thickness direction are both active surfaces 321 , and the cleaning member 330 is located on two opposite sides of the scraping member 320 in the thickness direction.

[0071] When the scraper 320 is in the shape of a plate, the two opposite surfaces of the scraper 320 in the thickness direction are both active surfaces 321, so that the side edges (i.e., the first side edges 3211) on the two opposite surfaces in the thickness direction of the scraper 320 can both have the function of scraping the roller surface to be cleaned, and the cleaning members 330 located on the opposite sides of the thickness direction of the scraper 320 can also clean the two active surfaces 321 of the scraper 320 respectively, and the first side edge 3211 on one of the active surfaces 321 of the scraper 320 can be selected to scrape the roller surface to be cleaned as needed.

[0072] In some optional embodiments of the present application, the scraping member 320 and the first cleaning member 331 are both silicone plates; the scraping member 320 is a silicone plate, which is beneficial to avoid damaging the roller surface of the roller to be cleaned when the scraping member 320 scrapes impurities on the roller surface of the roller to be cleaned; the first cleaning member 331 is a silicone plate, which is also beneficial to avoid damaging the scraping member 320 when the first cleaning member 331 scrapes the active surface 321 of the scraping member 320, which is beneficial to increase the service life of the scraping member 320.

[0073] It should be noted that in other optional embodiments of the present application, the scraper 320 and the first cleaning component 331 can be of other shapes, as long as the scraper 320 has an action surface 321 of the first side 3211 and the first cleaning component 331 has a cleaning surface 3311 of the second side 3312.

[0074] In some optional embodiments of the present application, the cleaning member 330 includes a second cleaning member 332, which is a suction member, and the suction member has an inner cavity (not shown in the figure), and the suction member has a liquid suction port 3321 arranged toward the action surface 321, and the liquid suction port 3321 is connected to the inner cavity, and the liquid suction port 3321 is used to suck out impurities on the action surface 321. The impurities on the action surface 321 of the scraping member 320 are sucked out by the liquid suction port 3321 of the second cleaning member 332, thereby realizing the cleaning effect of the second cleaning member 332 on the action surface 321 of the scraping member 320.

[0075] Furthermore, in some optional embodiments of the present application, the active surface 321 is configured to be tilted relative to the axial direction of the roller to be cleaned, and the first side edge 3211 has a third end 3212 and a fourth end 3213 relative to each other; the liquid suction port 3321 has a first suction port 3322 and a second suction port 3323, and the first suction port 3322 and the second suction port 3323 are both connected to the inner cavity, the first suction port 3322 is arranged at the third end 3212 and is used to absorb impurities at the third end 3212, and the second suction port 3323 is arranged at the fourth end 3213 and is used to absorb impurities at the fourth end 3213.

[0076] In the above manner, the action surface 321 is configured to be tilted relative to the axial direction of the roller to be cleaned, so that impurities on the action surface 321 can flow toward the lower end of the action surface 321 due to gravity, and then the impurities are sucked out through the first suction port 3322 or the second suction port 3323 located at the end of the action surface 321, thereby more thoroughly and conveniently removing impurities remaining on the action surface 321 of the scraper 320.

[0077] In some optional embodiments of the present application, the roller surface cleaning device 30 further includes a suction power member (not shown in the figure), which is connected to the inner cavity and is used to form a negative pressure in the inner cavity. The suction power member is provided to provide power for the suction port 3321 to remove impurities on the action surface 321.

[0078] In some optional embodiments of the present application, the roller surface cleaning device 30 also includes a filter 350 and a reservoir 360. The inner cavity, the filter 350 and the reservoir 360 are connected in sequence. The filter 350 is used to receive impurities in the inner cavity and filter the impurities, and the reservoir 360 is used to store the liquid phase filtered by the filter 350.

[0079] In the above scheme, the setting of the filter 350 can filter the liquid impurities such as white oil removed from the cleaning roller; the setting of the storage 360 ​​can store the liquid impurities such as white oil after filtering, and the stored liquid (for example, white oil, etc.) can be used as raw materials for subsequent recycling, which can improve resource utilization.

[0080] As an example, after the liquid impurities sucked from the inner cavity of the second cleaning component 332 reach a certain liquid level, the valve on the pipeline connecting the inner cavity and the filter 350 is opened, so that the liquid impurities in the inner cavity enter the filter 350 .

[0081] In some optional embodiments of the present application, the roller surface cleaning device 30 further includes a slide rail 370 extending in a direction parallel to the axial direction of the roller to be cleaned, and the base 310 is slidably connected to the slide rail 370 so that the base 310 can move relative to the roller to be cleaned along the axial direction of the roller to be cleaned. The axial position of the slide rail 370 relative to the roller to be cleaned is fixed, and the setting of the slide rail 370 can enable the base 310 to reciprocate relative to the roller to be cleaned along the axial direction of the roller to be cleaned, thereby driving the scraping member 320 and the cleaning member 330 connected to the base 310 to move relative to the roller to be cleaned along the axial direction of the roller to be cleaned, so as to achieve a more comprehensive impurity cleaning operation on the roller surface of the roller to be cleaned.

[0082] As an example, Figures 4 to 8As shown, a slider is provided on the base 310, and the slider is sleeved on the outer circumference of the slide rail 370 to achieve a sliding connection between the base 310 and the slide rail 370. It should be noted that in other feasible embodiments of the present application, a pulley may be fixedly connected to the base 310, and the pulley on the base 310 is slidably connected to the slide rail 370 to achieve a sliding connection between the base 310 and the slide rail 370.

[0083] Furthermore, in some optional embodiments of the present application, the roller surface cleaning device 30 also includes a spur rack 380, a gear 391, and a driving member 392; the extension direction of the spur rack 380 is parallel to the extension direction of the slide rail 370, the gear 391 and the spur rack 380 are meshed with each other, the driving member 392 is used to drive the gear 391 to rotate, and the driving member 392 is connected to the base 310, so that when the driving member 392 drives the gear 391 to rotate, the gear 391 can move along the spur rack 380 and drive the base 310 to move along the slide rail 370.

[0084] In the above scheme, through the mutual cooperation of the spur rack 380, the gear 391, the driving member 392 and the slide rail 370, in the process that the driving member 392 drives the gear 391 to rotate and the gear 391 moves along the spur rack 380, the driving member 392 can move along the extension direction of the spur rack 380 with the gear 391, and the base 310 connected to the driving member 392 moves along the extension direction of the slide rail 370, thereby driving the scraping member 320 and the cleaning member 330 connected to the base 310 to move along the axial direction of the roller to be cleaned relative to the roller to be cleaned, so as to realize a more comprehensive impurity cleaning operation on the roller surface of the roller to be cleaned.

[0085] As an example, the driving member 392 is a rotary motor.

[0086] It should be noted that in other feasible embodiments of the present application, other methods can also be used to enable the base 310, the scraper 320 and the cleaning member 330 to move relative to the roller to be cleaned along the axial direction of the roller to be cleaned. For example, the base 310 is connected to a linear driving component (for example, a linear cylinder or a linear motor, etc.), and the linear driving component drives the base 310 to move along the slide rail 370 relative to the roller to be cleaned, thereby driving the scraper 320 and the cleaning member 330 connected to the base 310 to move relative to the roller to be cleaned along the axial direction of the roller to be cleaned.

[0087] The present application also provides a roller surface cleaning device 30, which is used to remove impurities on the roller surface of the roller to be cleaned; Figures 4 to 8 As shown, the roller surface cleaning device 30 includes a base 310 , a scraping member 320 and at least one cleaning member 330 .

[0088] It is understandable that, in the roller surface cleaning device 30, the structure, shape, positional relationship and connection relationship of the base 310, the scraping member 320 and the cleaning member 330 can be found in the above contents and will not be repeated here.

[0089] The present application does not limit the roller to be cleaned used by the roller surface cleaning device 30 to remove impurities. For example, the roller to be cleaned can be the chilled roller 20 in the casting equipment, or the calendering roller used in the preparation process of the battery diaphragm.

[0090] Furthermore, the roller surface cleaning device 30 also includes a telescopic part 340, a suction power part, a filter, a storage 360, a slide rail 370, a spur rack 380, a gear 391 and a driving part 392. For the structure, shape, position relationship and connection relationship of each component, please refer to the above content and will not be repeated here.

[0091] The roller surface cleaning device 30 provided in the present application has at least the following advantages:

[0092] The roller surface cleaning device 30 provided in the present application comprises a base 310, a scraper 320 and at least one cleaning member 330, the scraper 320 and the cleaning member 330 are both connected to the base 310, the scraper 320 is used to clean the roller surface of the roller to be cleaned, and the cleaning member 330 can promptly clean the impurities remaining on the scraper 320, which helps to avoid the situation where the roller surface cleaning device 30 has a poor cleaning effect on the roller surface of the roller to be cleaned due to a large amount of impurities remaining on the scraper 320. There is no need to frequently replace the scraper 320, nor is there any need to frequently clean the scraper 320 manually, which can improve the cleaning efficiency of the roller surface cleaning device 30 on the roller surface of the roller to be cleaned.

[0093] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A roller surface cleaning device, characterized in that: include: Pedestal; A scraper, the scraper is connected to the base, the scraper has at least one action surface, the action surface has a first side edge, the first side edge is used to contact the roller surface of the roller to be cleaned, so that when the roller to be cleaned rotates around the axial direction of the roller to be cleaned, the first side edge can scrape impurities on the roller surface of the roller to be cleaned; At least one cleaning member is connected to the base, the cleaning member is located at one side of the active surface, and the cleaning member is used to remove the impurities remaining on the active surface.

2. The roller surface cleaning device according to claim 1, characterized in that: The scraping member is connected to the base through a telescopic member, so that when the telescopic member is extended, the first side edge can contact the roller surface of the roller to be cleaned.

3. The roller surface cleaning device according to claim 2, characterized in that: The cleaning member comprises a first cleaning component, the first cleaning component has a cleaning surface, the cleaning surface has a second side edge, and when the telescopic member is shortened, the second side edge can contact the action surface so that the impurities on the action surface can be transferred to the cleaning surface.

4. The roller surface cleaning device according to claim 3, characterized in that: The cleaning surface is inclined relative to the active surface, and the cleaning surface has a first end and a second end that are oppositely arranged, the second side edge is located at the first end, and the second end is located at a side of the first end away from the roller to be cleaned; The first cleaning component has a chamber inside, and the cleaning surface has a through hole communicating with the chamber.

5. The roller surface cleaning device according to claim 3, characterized in that: The scraping member and the first cleaning member are both in plate shape.

6. The roller surface cleaning device according to claim 1, characterized in that: The cleaning member includes a second cleaning member, which is a suction member. The suction member has an inner cavity inside. The suction member has a liquid suction port arranged toward the active surface. The liquid suction port is connected to the inner cavity and is used to suck out the impurities on the active surface.

7. The roller surface cleaning device according to claim 6, characterized in that: The active surface is configured to be tiltable relative to the axial direction of the roller to be cleaned, and the first side has a third end and a fourth end opposite to each other; The liquid suction port comprises a first suction port and a second suction port, the first suction port and the second suction port are both connected to the inner cavity, the first suction port is arranged at the third end and is used to suck out the impurities at the third end, and the second suction port is arranged at the fourth end and is used to suck out the impurities at the fourth end.

8. The roller surface cleaning device according to claim 7, characterized in that: The roller surface cleaning device further comprises a suction power member, which is communicated with the inner cavity and is used to form a negative pressure in the inner cavity.

9. The roller surface cleaning device according to claim 8, characterized in that: The roller surface cleaning device also includes a filter and a reservoir. The inner cavity, the filter and the reservoir are connected in sequence. The filter is used to receive the impurities in the inner cavity and filter the impurities. The reservoir is used to store the liquid phase filtered by the filter.

10. The roller surface cleaning device according to any one of claims 1 to 9, characterized in that: The roller surface cleaning device further comprises a slide rail extending in a direction parallel to the axial direction of the roller to be cleaned, and the base is slidably connected to the slide rail so that the base can move relative to the roller to be cleaned along the axial direction of the roller to be cleaned.

11. The roller surface cleaning device according to claim 10, characterized in that: The roller surface cleaning device also includes a spur rack, a gear, and a driving member; The extension direction of the spur rack is parallel to the extension direction of the slide rail, the gear and the spur rack are meshed with each other, the driving member is used to drive the gear to rotate, and the driving member is connected to the base, so that when the driving member drives the gear to rotate, the gear can move along the spur rack and drive the base to move along the slide rail.

12. A slab casting device, characterized in that: include: A die head, a chilled roller, and a roller surface cleaning device as claimed in any one of claims 1 to 11; The die head is used to extrude a melt, the chilled roller is used to receive and cool the melt extruded by the die head so that the melt forms a sheet, and the chilled roller is the roller to be cleaned.

13. The casting device according to claim 12, characterized in that: The casting equipment also includes an oil removal roller, which is arranged downstream of the roller surface cleaning device along the rotation direction of the chill roller. The axial direction of the oil removal roller is parallel to the axial direction of the chill roller, and the roller surface of the oil removal roller is used to contact the roller surface of the chill roller.

14. The casting device according to claim 12, characterized in that: The slab casting equipment also includes a cooling trough and a stripping roller; Along the rotation direction of the chilled roller, the cooling trough is arranged downstream of the die head, the stripping roller is arranged downstream of the cooling trough, and the roller surface cleaning device is arranged downstream of the stripping roller; The cooling tank is used to contain a cooling liquid, and the cooling liquid in the cooling tank is used to contact the sheet on the roller surface of the chilled roller. The stripping roller is used to strip the sheet on the chilled roller.

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