Coating equipment and back roller cleaning method

Abstract

The invention discloses coating equipment and a back roller cleaning method, and relates to the technical field of battery processing equipment.The coating equipment comprises a rack, a driver, a back roller, a scraper assembly and a fine adjustment assembly; the driver is arranged on the rack; the back roller is arranged on the rack and is in transmission connection with the driver, and the driver drives the back roller to rotate; the scraper assembly is arranged on the rack and comprises a scraper, the scraper is located on one side of the back roller and extends in the axial direction of the back roller, and the scraper is configured to scrape off impurities on the surface of the back roller; the fine adjustment assembly is arranged on the scraper assembly and located on the side, away from the back roller, of the scraper, the fine adjustment assembly is configured to press the local position of the scraper, and the fine adjustment assembly is used for sliding in the extending direction of the scraper. According to the technical scheme, the problem that the local position of the back roller cannot be cleaned thoroughly can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of battery processing equipment, and in particular to a coating device and a back roller cleaning method. Background Art

[0002] In the production process of lithium battery coating, powder often falls off when coating the anode electrode, which makes it easy for the back roller surface of the coating equipment to absorb the carbon powder that falls off the electrode. The carbon powder absorbed on the back roller surface is easy to fall on the subsequently coated electrode, resulting in defective products.

[0003] In order to improve the impact of carbon powder falling off, a scraper is usually used to clean carbon powder and other impurities on the surface of the back roller. However, the scraper is too long and easily deformed, resulting in the inability to clean local parts of the back roller. Summary of the invention

[0004] In view of the above problems, the present application provides a coating device and a back roller cleaning method, aiming to solve the problem that a local position of the back roller cannot be cleaned thoroughly.

[0005] The present application provides a coating device, comprising a frame, a driver, a back roller, a scraper assembly and a fine-tuning assembly; the driver is arranged on the frame; the back roller is arranged on the frame and is transmission-connected to the driver, and the driver drives the back roller to rotate; the scraper assembly is arranged on the frame and comprises a scraper, the scraper is located on one side of the back roller and extends along the axial direction of the back roller, and the scraper is configured to scrape off impurities on the surface of the back roller; the fine-tuning assembly is arranged on the scraper assembly and is located on the side of the scraper away from the back roller, the fine-tuning assembly is configured to press the local position of the scraper, and the fine-tuning assembly is used to slide along the extension direction of the scraper.

[0006] In the technical solution of the embodiment of the present application, the technical solution of the present invention adopts a scraper set on one side of the back roller and extending along the axial direction of the back roller. When the driver drives the back roller to rotate, the impurities on the surface of the back roller can be scraped off by the scraper. Among them, the scraper assembly is provided with a fine-tuning assembly for sliding along the extension direction of the scraper. Since the scraper is relatively long, when the local position of the scraper is deformed, the fine-tuning assembly can be slid to the local position of the deformation of the scraper, so that the deformation of the local position of the scraper can be locally adjusted by pressing the fine-tuning assembly at the local position of the deformation of the scraper, so that each position of the scraper in the extension direction is consistent with the degree of pressing of the back roller. In this way, when the driver drives the back roller to rotate, the impurities on the surface of the back roller can be fully cleaned by the scraper, thereby effectively solving the problem that the local position of the back roller cannot be cleaned.

[0007] In some embodiments, the fine-tuning assembly includes a fine-tuning mounting block, a pressure head, and an adjusting member; the fine-tuning mounting block is disposed on the scraper assembly and is used to slide along the extension direction of the scraper; one end of the pressure head is hinged to the fine-tuning mounting block, and the other end of the pressure head is pressed against the side of the scraper away from the back roller; the adjusting member is disposed on the fine-tuning mounting block, and the adjusting member drives the end of the pressure head pressed against the scraper to move toward or away from the back roller. With such a design, after the fine-tuning assembly is slid to the position where the scraper is deformed, the adjusting member is operated to apply a thrust to the end of the pressure head pressed against the scraper through the adjusting member, so that the pressure head rotates and moves toward the back roller at the end of the pressure head pressed against the scraper, and the deformed local position of the scraper can be flattened by the pressure head, and the deformed local position of the scraper can be adjusted.

[0008] In some embodiments, the adjusting member is an adjusting screw, which is threadedly connected to the fine-tuning mounting block. With this design, the adjusting screw can be directly turned to convert the rotary motion of the adjusting screw into linear motion, which can drive the end of the pressure head pressed against the scraper to move toward or away from the back roller. This adjustment method is simple to operate and has high adjustment accuracy.

[0009] In some embodiments, the fine-tuning mounting block includes a first mounting section and a second mounting section that are arranged at an angle; the first mounting section is arranged on the scraper assembly and is used to slide along the extension direction of the scraper, and one end of the pressure head is hinged to the first mounting section; the second mounting section is connected to an end of the first mounting section away from the scraper assembly and is located on the side of the pressure head away from the scraper, and the adjusting screw is threadedly connected to the second mounting section. With this design, one end of the pressure head can be hinged to the first mounting section, and the adjusting screw can be installed on the second mounting section, which makes it easier to install the pressure head and the adjusting screw.

[0010] In some embodiments, the pressure head includes a connecting rod and a pressure rod set at an angle; one end of the connecting rod is hinged to the fine-tuning mounting block, and the other end of the connecting rod extends in a direction away from the fine-tuning mounting block; one end of the pressure rod is connected to the end of the connecting rod away from the fine-tuning mounting block, and the other end of the pressure rod extends toward the scraper and is pressed against the scraper. Such a design can make the pressure head composed of the connecting rod and the pressure rod have a seven-shaped structure. This design makes it easier to hinge the pressure head on the fine-tuning mounting block. At the same time, the connecting rod is driven to rotate under the adjustment of the adjusting member, driving the pressure rod to press against the scraper, so that the local position of the deformation of the scraper can be flattened by the pressure rod, thereby adjusting the local position of the deformation of the scraper.

[0011] In some embodiments, the coating device further includes a driving assembly, which drives the scraper assembly to rotate and is arranged on the frame. With such a design, when it is necessary to clean impurities on the surface of the back roller, the driving assembly drives the scraper assembly to rotate until the scraper contacts the surface of the back roller, and when the back roller rotates, the impurities on the surface of the back roller can be scraped off by the scraper; when it is not necessary to clean the back roller, the driving assembly drives the scraper assembly to rotate to a position where the scraper is away from the surface of the back roller, which can reduce the wear of the scraper on the back roller during the coating process; or when it is necessary to remove impurities on the scraper, the driving assembly also drives the scraper assembly to rotate to a position where the scraper is away from the surface of the back roller, so as to remove the impurities on the scraper.

[0012] In some embodiments, the scraper assembly further includes a rotating shaft and a scraper mounting structure; the driving assembly drives the rotating shaft to rotate and is disposed on the frame; the scraper mounting structure is disposed on the rotating shaft, and the scraper is mounted on the scraper mounting structure; and the fine-tuning assembly is disposed on the scraper mounting structure. In this design, the scraper assembly is integrally mounted on the frame via the rotating shaft, which can improve the reliability of the scraper assembly during the rotation process, and by mounting the scraper and the fine-tuning assembly on the scraper mounting structure, it is easier to install the scraper and the fine-tuning assembly.

[0013] In some embodiments, the scraper installation structure includes an adapter plate, a scraper mounting plate, and a scraper pressing plate; the adapter plate is arranged on the rotating shaft; the scraper mounting plate is arranged on the side of the adapter plate away from the rotating shaft; the scraper pressing plate is installed on the scraper mounting plate, and the scraper pressing plate presses the scraper on the scraper mounting plate; and the fine-tuning assembly is arranged on the scraper pressing plate. With such a design, when installing the scraper, the adapter plate is first connected to the rotating shaft, and then the scraper mounting plate is installed on the adapter plate, and then the scraper is placed on the mounting surface of the scraper mounting plate, and then the scraper pressing plate is used to press the scraper on the scraper mounting plate, so as to achieve reliable installation of the scraper, thereby reducing the risk of the scraper moving from the scraper mounting structure or even falling off during use.

[0014] In some embodiments, the driving assembly includes a mounting plate and a driving structure; the mounting plate is arranged on the frame; the driving structure includes a driving member and a connecting block, the connecting block is connected to the driving member by transmission, and the driving member drives the connecting block to move toward or away from the scraper assembly to drive the scraper assembly to rotate. With such a design, the driving member can drive the connecting block to move toward or away from the scraper assembly, that is, the scraper assembly can be driven to rotate smoothly through the connecting block to accurately adjust the rotation angle of the scraper assembly.

[0015] In some embodiments, the mounting plate extends along the length direction of the scraper, and at least two driving structures are provided, and at least one driving structure is provided at each end of the mounting plate. With such a design, since the scraper assembly is relatively long, at least two driving structures are used to simultaneously drive the scraper assembly to rotate, which can prevent deformation of the scraper assembly during the process of driving the scraper assembly to rotate.

[0016] In some embodiments, the driving assembly drives the scraper assembly to rotate so that the scraper assembly has a scraping position and a stripping position; the coating device also includes a chip receiving assembly, which is arranged on the frame and located on the side of the scraper assembly away from the back roller; when the scraper assembly is in the scraping position, the scraper is configured to scrape off impurities on the surface of the back roller; when the scraper assembly is in the stripping position, the scraper is located above the chip receiving assembly, and the chip receiving assembly is configured to receive impurities falling from the scraper. With such a design, when it is necessary to clean the impurities on the surface of the back roller, the scraper assembly rotates to the scraping position so that the scraper contacts the surface of the back roller, and at this time, the impurities on the surface of the back roller can be scraped off by the scraper under the rotation of the back roller; when a certain amount of impurities are scraped off the scraper, it is necessary to remove the impurities on the scraper, and the scraper assembly can be rotated to the stripping position so that the scraper is located above the chip receiving assembly, and at this time, the impurities on the scraper will automatically fall to the chip receiving assembly below under the action of gravity for collection, so as to realize automatic collection of impurities.

[0017] In some embodiments, the scraper assembly is provided with a guide rail, which extends along the length direction of the scraper, and the fine-tuning assembly is provided with a slider, which slides with the guide rail. Such a design can more smoothly adjust the position of the fine-tuning assembly under the cooperation of the slider and the guide rail, so as to accurately slide the fine-tuning assembly to the local position of the scraper deformation, so as to fine-tune and flatten the local position of the deformation.

[0018] In some embodiments, there are multiple fine-tuning assemblies, and the multiple fine-tuning assemblies are spaced apart along the extension direction of the scraper. In such a design, since the scraper is relatively long, there will be multiple locations where the scraper is partially deformed. Therefore, by providing multiple fine-tuning assemblies, the multiple deformed local locations of the scraper can be fine-tuned and flattened respectively by the multiple fine-tuning assemblies, so that the various locations of the scraper in the extension direction are consistent with the degree of compression of the back roller. In this way, when the back roller rotates, the scraper can fully clean the impurities on the surface of the back roller, thereby effectively solving the problem that the local location of the back roller cannot be cleaned thoroughly.

[0019] In some embodiments, at least one fine-tuning component is provided at both ends and the middle of the scraper. With such a design, since local deformation is more likely to occur at both ends and the middle of the scraper, the deformed local position of the scraper can be fine-tuned and flattened by providing at least one fine-tuning component at both ends and the middle of the scraper.

[0020] In some embodiments, the coating device further includes a limit assembly, which is disposed on the frame, pressed against the side of the scraper away from the back roller, and configured to adjust the gap between the scraper and the back roller. With such a design, the gap between the scraper and the back roller can be adjusted by the limit assembly to control the pressing force of the scraper on the back roller, thereby controlling the cleaning force of the scraper on the back roller surface. In addition, after the scraper is worn by the back roller, the pressing force on the scraper can also be increased by the limit assembly to prevent the gap between the scraper and the back roller from being too large, thereby affecting the cleaning effect of the scraper on the back roller surface.

[0021] In some embodiments, two limit assemblies are provided, and the two limit assemblies are respectively arranged near the two ends of the scraper. In this design, since the scraper is relatively long, two limit assemblies are respectively arranged near the two ends of the scraper, and the two limit assemblies can be used to press the scraper at the same time, which improves the balance of pressing the scraper and prevents the scraper from warping and deforming during the process of pressing the scraper.

[0022] In some embodiments, the limit assembly includes a mounting block, an adjusting screw and a limit block; the mounting block is arranged on the frame; the adjusting screw is threadedly connected to the mounting block; the limit block is threadedly sleeved on the adjusting screw; under the rotation of the adjusting screw, the limit block is driven to move toward or away from the scraper to adjust the gap between the scraper and the back roller. In such a design, when the gap between the scraper and the back roller needs to be adjusted, the adjusting screw is rotated, and the limit block threadedly matched with it moves along the extension direction of the adjusting screw under the rotation of the screw, so that the limit block moves toward or away from the scraper. When the limit block moves toward the scraper, the limit block will increase the pressing force on the scraper to reduce the gap between the scraper and the back roller; when the limit block moves away from the scraper, the limit block will reduce the pressing force on the scraper to increase the gap between the scraper and the back roller, so that the gap between the scraper and the back roller can be accurately adjusted as needed to achieve a better cleaning effect on the back roller.

[0023] The present application also provides a back roller cleaning method based on the above coating device, and the back roller cleaning method comprises the following steps: Controlling the fine-adjustment assembly to slide along the extension direction of the scraper assembly, so that the fine-adjustment assembly slides to a local position where the scraper is deformed; Control the local position of the scraper pressed by the fine-tuning assembly; The driver is controlled to drive the back roller to rotate, so that the scraper scrapes off the impurities on the surface of the back roller.

[0024] With this design, since the scraper is relatively long, when a local position of the scraper is deformed, the fine-tuning component can be controlled to slide to the position where the scraper is deformed, so as to control the fine-tuning component to be pressed at the local position where the scraper is deformed. The deformation of the local position of the scraper can be locally adjusted so that each position of the scraper in the extension direction is consistent with the degree of pressure of the back roller. In this way, when the control driver drives the back roller to rotate, the scraper can fully clean the impurities on the surface of the back roller, thereby effectively solving the problem that the local position of the back roller cannot be cleaned.

[0025] In some embodiments, controlling the fine-tuning assembly to press the local position of the scraper comprises: The adjusting member of the control fine adjustment assembly drives the pressure head to move toward the back roller, so that the pressure head presses the local position of the scraper.

[0026] With this design, after controlling the fine-tuning assembly to slide to the position where the scraper is deformed, the adjusting member is operated to control the adjusting member to apply a thrust to the pressure head pressing on one end of the scraper, so that the pressure head rotates and moves toward the back roller on the one end of the scraper. The deformed local position of the scraper can be flattened by the pressure head, thereby adjusting the deformed local position of the scraper.

[0027] In some embodiments, the controlling the fine-tuning assembly to slide along the extension direction of the scraper, before the fine-tuning assembly slides to the local position where the scraper is deformed, further comprises: The control driving assembly drives the scraper assembly to rotate to the scraping position.

[0028] With this design, when it is necessary to clean impurities on the surface of the back roller, the control drive assembly drives the scraper assembly to rotate to the scraping position so that the scraper contacts the surface of the back roller. At this time, the control driver drives the back roller to rotate, and the impurities on the surface of the back roller can be scraped off by the scraper.

[0029] In some embodiments, after the control driver drives the back roller to rotate so that the scraper scrapes off impurities on the surface of the back roller, the process further includes: The control driving assembly drives the scraper assembly to rotate to the material stripping position, so that the scraper is located above the chip receiving assembly, and the chip receiving assembly is configured to receive impurities dropped from the scraper.

[0030] With this design, after the scraper scrapes off a certain amount of impurities, the impurities on the scraper need to be cleaned, and the driving assembly is controlled to drive the scraper assembly to rotate to the material removing position so that the scraper is located above the chip collecting assembly. At this time, the impurities on the scraper will automatically fall to the chip collecting assembly below under the action of gravity for collection, thereby realizing automatic collection of impurities.

[0031] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, which can be implemented in accordance with the contents of the specification, and in order to make other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0033] Figure 1 This is a schematic structural diagram of an embodiment of a coating device of the present application; Figure 2 for Figure 1 A partial enlarged view of the middle A; Figure 3 A partial structural side view of an embodiment of a coating device of the present application; Figure 4 for Figure 3 A partial enlarged view of point B in the middle; Figure 5 This is a schematic diagram of the structure of a scraper assembly and a fine-tuning assembly in one embodiment of the coating device of the present application; Figure 6 This is a schematic diagram of the structure of a driving component in an embodiment of a coating device of the present application; Figure 7 This is a schematic structural diagram of a chip receiving assembly in one embodiment of the coating device of the present application; Figure 8 This is a schematic diagram of the structure of a limiting component in an embodiment of the coating device of the present application; Fig. 9 This is a flowchart of the steps of an embodiment of the back roller cleaning method of the present application; Fig.10 This is a flowchart of the steps of an embodiment of the back roller cleaning method of the present application; Fig.11 This is a flowchart of the steps of an embodiment of the back roller cleaning method of the present application.

[0034] Description of Figure Numbers:

[0035] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0036] 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.

[0037] 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 and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0038] 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.

[0039] 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.

[0040] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0041] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or component must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0042] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like 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 components or the interaction relationship between two components. 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 the specific circumstances.

[0043] In the production process of lithium battery coating, powder often falls off when coating the anode electrode, which makes it easy for the back roller surface of the coating equipment to absorb the carbon powder that falls off the electrode. The carbon powder absorbed on the back roller surface is easy to fall on the subsequently coated electrode, resulting in defective products.

[0044] In order to improve the impact of carbon powder falling off, a scraper is usually used to clean carbon powder and other impurities on the surface of the back roller. However, the scraper is too long and easily deformed, resulting in the inability to clean local parts of the back roller.

[0045] Based on the above problems, the present invention proposes a coating device 100, which aims to solve the problem that a local position of the back roller 20 cannot be cleaned completely. The coating device 100 is described in detail below with reference to specific drawings and embodiments.

[0046] See also Figures 1 to 5 In one embodiment of the present invention, the coating device 100 includes a frame 10, a driver (not shown), a back roller 20, a scraper assembly 30 and a fine-tuning assembly 40; the back roller 20 is arranged on the frame 10 and is transmission-connected to the driver, and the driver drives the back roller 20 to rotate; the scraper assembly 30 is arranged on the frame 10 and includes a scraper 31, the scraper 31 is located on one side of the back roller 20 and extends along the axial direction of the back roller 20, and the scraper 31 is configured to scrape off impurities on the surface of the back roller 20; the fine-tuning assembly 40 is arranged on the scraper assembly 30 and is located on the side of the scraper 31 away from the back roller 20, the fine-tuning assembly 40 is configured to press the local position of the scraper 31, and the fine-tuning assembly 40 is used to slide along the extension direction of the scraper 31.

[0047] In this embodiment, the frame 10 is used to support the fixed driver, the back roller 20, the scraper assembly 30 and the fine-tuning assembly 40. Optionally, the frame 10 may include a bottom plate 11 and two side plates 12, the two side plates 12 are arranged on opposite sides of the bottom plate 11 and extend along the top of the bottom plate 11, the two ends of the back roller 20 are rotatably connected to the two side plates 12 respectively, the scraper assembly 30 is installed on at least one side plate 12, and a driver for driving the back roller 20 to rotate is installed on the side plate 12, the driver is a structural member for driving the back roller 20 to rotate, and specifically can be a motor, or a structure in which a motor cooperates with a gear rack, or a structure in which a motor cooperates with a belt and a rotating wheel, etc.

[0048] The back roller 20 is a coating roller in the coating device 100. In other words, the back roller 20 is a roller body used to support and transport the substrate sheet to be coated. When the substrate sheet to be coated passes through the back roller 20, the surface of the substrate sheet is coated by the coating head.

[0049] The scraper assembly 30 is a structure for cleaning impurities on the surface of the back roller 20. The scraper 31 of the scraper assembly 30 contacts the surface of the back roller 20. When the driver drives the back roller 20 to rotate, the scraper 31 can scrape off the impurities on the surface of the back roller 20.

[0050] The fine-tuning component 40 is a structure for adjusting the shape of the scraper 31. When the fine-tuning component 40 is pressed on a local position of the scraper, the shape of the local position of the scraper 31 can be changed. For example, when a local position of the scraper 31 is deformed such as warping or bulging, the fine-tuning component 40 is slid to the deformed local position of the scraper 31, and the fine-tuning component 40 is pressed on the deformed local position of the scraper 31 and squeezed to flatten the deformed local position to be consistent with other positions of the scraper 31.

[0051] It should be noted that the local position of the scraper 31 refers to the position of a certain section or a certain point on the side of the scraper 31 away from the back roller 20. The local position of the back roller 20 mentioned above refers to the position of a certain section or a certain point on the surface of the back roller 20. It can be understood that when the local position of the scraper 31 is not in contact with the local position corresponding to the surface of the back roller 20 due to deformation such as warping or bulging, the deformed local position of the scraper 31 cannot scrape off the impurities at the local position corresponding to the surface of the back roller 20 during the rotation of the back roller 20. Therefore, it is necessary to use a fine-tuning component 40 to flatten the deformed local position so that the various positions of the scraper 31 in the extension direction are consistent with the degree of compression of the back roller 20.

[0052] In some embodiments, the coating device 100 may also include structures such as a unwinding device, a winding device, a coating device, and a drying device. The coating device includes a coating head and a coating roller corresponding to the substrate sheet to be coated (such as a pole sheet). The coating roller may be the back roller 20 of the present embodiment. The unwinding device is used to release the substrate sheet to be coated. When the substrate sheet to be coated passes through the back roller 20, the surface of the substrate sheet is coated by the coating head. The drying device is used to dry the coated substrate sheet. The winding device is used to wind up the coated substrate sheet.

[0053] In actual application, the scraper assembly 30 can be fixedly mounted on the frame 10 , or can be rotated or moved relative to the frame 10 , as long as the scraper 31 can scrape off the impurities on the surface of the back roller 20 .

[0054] In actual application, the fine-tuning assembly 40 can be driven manually or mechanically to slide along the extension direction of the scraper 31, so as to slide the fine-tuning assembly 40 to the position where the scraper 31 is deformed. In addition, there can be one or at least two fine-tuning assemblies 40, which can be determined according to the number of local positions where the scraper 31 is deformed.

[0055] In summary, in the technical solution of the embodiment of the present application, the technical solution of the present invention adopts a scraper 31 arranged on one side of the back roller 20 and extending along the axial direction of the back roller 20. When the driver drives the back roller 20 to rotate, the impurities on the surface of the back roller 20 can be scraped off by the scraper 31. Among them, the scraper assembly 30 is provided with a fine-tuning assembly 40 for sliding along the extension direction of the scraper 31. Since the scraper 31 is relatively long, when the local position of the scraper 31 is deformed, the fine-tuning assembly 40 can be slid to the position where the scraper 31 is deformed, so that the fine-tuning assembly 40 is pressed at the local position where the scraper 31 is deformed, and the deformation of the local position of the scraper 31 can be locally adjusted, so that each position of the scraper 31 in the extension direction is consistent with the degree of pressing of the back roller 20. In this way, when the driver drives the back roller 20 to rotate, the impurities on the surface of the back roller 20 can be fully cleaned by the scraper 31, thereby effectively solving the problem that the local position of the back roller 20 cannot be cleaned.

[0056] See also Figure 5 In one embodiment of the present invention, the fine-tuning assembly 40 includes a fine-tuning mounting block 41, a pressure head 42 and an adjusting member 43; the fine-tuning mounting block 41 is arranged on the scraper assembly 30 and is used to slide along the extension direction of the scraper 31; one end of the pressure head 42 is hinged to the fine-tuning mounting block 41, and the other end of the pressure head 42 is pressed against the side of the scraper 31 away from the back roller 20; the adjusting member 43 is arranged on the fine-tuning mounting block 41, and the adjusting member 43 drives the end of the pressure head 42 pressed against the scraper 31 to move toward or away from the back roller 20.

[0057] The fine-tuning mounting block 41 is a structure for mounting the fine-tuning assembly 40 on the scraper assembly 30, and can be mounted on the scraper assembly 30 by sleeve mounting, insert mounting, or the like. For example, a slide rail is provided on the scraper assembly 30, so that the fine-tuning mounting block 41 is sleeved on the slide rail of the scraper assembly 30; or, a slide groove is provided on the scraper assembly 30, so that the fine-tuning mounting block 41 is at least partially inserted into the slide groove of the scraper assembly 30, so that the fine-tuning assembly can slide along the extension direction of the scraper 31, so that the fine-tuning assembly 40 can slide to the position where the scraper 31 is deformed.

[0058] The pressure head 42 is a structure used to press or release the local position of the scraper 31. When the pressure head 42 presses the local position of the scraper 31, the shape of the local position of the scraper 31 can be adjusted. When the pressure head 42 releases the scraper 31, there is a gap between the pressure head 42 and the scraper 31.

[0059] The adjusting member 43 is a structure for driving the pressure head 42 to move, so as to drive the pressure head 42 to press or release the local position of the scraper 31. Specifically, the adjusting member 43 can be threadedly connected to the fine-tuning mounting block 41, or can be connected to the fine-tuning mounting block 41 in a sliding manner, as long as it can drive the pressure head 42 to press on one end of the scraper 31 and move toward or away from the back roller 20.

[0060] With such a design, after the fine-tuning assembly 40 is slid to the position where the scraper 31 is deformed, the adjusting member 43 is operated to apply a thrust to the pressure head 42 pressing one end of the scraper 31 through the adjusting member 43, so that the pressure head 42 rotates and the pressure head 42 presses one end of the scraper 31 toward the back roller 20, so that the deformed local position of the scraper 31 can be flattened by the pressure head 42, and the deformed local position of the scraper 31 can be adjusted.

[0061] See also Figure 5 In one embodiment of the present invention, the adjusting member 43 is an adjusting screw, which is threadedly connected to the fine-tuning mounting block 41.

[0062] In this embodiment, a threaded hole is provided on the fine-tuning mounting block 41 , and the adjusting screw is passed through the threaded hole and threadably matched with the threaded hole.

[0063] With this design, the adjusting screw can be directly turned to convert the rotational motion of the adjusting screw into linear motion, which can drive the pressure head 42 to press against one end of the scraper 31 to move toward or away from the back roller 20. This adjustment method is simple to operate and has high adjustment accuracy.

[0064] See also Figure 5 In one embodiment of the present invention, the fine-tuning mounting block 41 includes a first mounting section 411 and a second mounting section 412 which are arranged at an angle; the first mounting section 411 is arranged on the scraper assembly 30 and is used to slide along the extension direction of the scraper 31, and one end of the pressure head 42 is hinged to the first mounting section 411; the second mounting section 412 is connected to one end of the first mounting section 411 away from the scraper assembly 30, and is located on the side of the pressure head 42 away from the scraper 31, and the adjusting screw is threadedly connected to the second mounting section 412.

[0065] The first mounting section 411 is a structure for mounting the fine-tuning assembly 40 on the scraper assembly 30 , and the first mounting section 411 is used for mounting the pressure head 42 .

[0066] The second mounting section 412 is a structure for mounting an adjusting screw, so that the adjusting screw can rotate relative to the second mounting section 412 under the action of an external force.

[0067] In some embodiments, a rotating shaft is provided on the first mounting section 411 , and one end of the pressing head 42 is rotatably connected to the rotating shaft. When the adjusting screw applies thrust to the pressing head 42 , the pressing head 42 rotates along the rotating shaft as the rotation axis.

[0068] With such a design, one end of the pressing head 42 can be hinged on the first mounting section 411 , and the adjusting screw can be installed on the second mounting section 412 , which makes it easier to install the pressing head 42 and the adjusting screw.

[0069] In practical applications, the first installation section 411 and the second installation section 412 may be an integral structure or a separate structure.

[0070] See also Figure 5 In one embodiment of the present invention, the pressure head 42 includes a connecting rod 421 and a pressure rod 422 which are arranged at an angle; one end of the connecting rod 421 is hinged to the fine-tuning mounting block 41, and the other end of the connecting rod 421 extends in a direction away from the fine-tuning mounting block 41; one end of the pressure rod 422 is connected to one end of the connecting rod 421 away from the fine-tuning mounting block 41, and the other end of the pressure rod 422 extends toward the scraper 31 and is pressed against the scraper 31.

[0071] The connecting rod 421 is a structure for connecting the pressure head 42 to the fine-tuning mounting block 41 . The connecting rod 421 is connected to the fine-tuning mounting block 41 via a rotating shaft so that the connecting rod 421 can rotate relative to the fine-tuning mounting block 41 under the drive of the adjusting member 43 .

[0072] The pressure rod 422 is a structure used to press or release the local position of the scraper 31. When the pressure rod 422 presses the local position of the scraper 31, the shape of the local position of the scraper 31 can be adjusted. When the pressure rod 422 releases the scraper 31, there is a gap between the pressure head 42 and the scraper 31.

[0073] Such a design can make the pressure head 42 composed of the connecting rod 421 and the pressure rod 422 have a seven-shaped structure. This design makes it easier to hinge the pressure head 42 on the fine-tuning mounting block 41. At the same time, the connecting rod 421 is driven to rotate under the adjustment of the adjustment member 43, driving the pressure rod 422 to press tightly on the scraper 31, so that the deformed local position of the scraper 31 can be flattened by the pressure rod 422, thereby adjusting the deformed local position of the scraper 31.

[0074] In practical applications, the connecting rod 421 and the pressing rod 422 may be an integral structure or a separate structure.

[0075] See also Figure 4 , Figure 5 In one embodiment of the present invention, the coating device 100 further includes a driving assembly 50 , and the driving assembly 50 drives the scraper assembly 30 to rotate and is disposed on the frame 10 .

[0076] In this embodiment, the driving assembly 50 is a structure for driving the scraper assembly 30 to rotate, and can be a motor, or a structure in which a motor cooperates with a gear rack, or a structure in which a motor cooperates with a belt and a rotating wheel, etc.

[0077] The driving assembly 50 drives the scraper assembly 30 to rotate relative to the frame 10 , so that the scraper 31 on the scraper assembly 30 can contact the surface of the back roller 20 , or the scraper 31 can be away from the surface of the back roller 20 .

[0078] With such a design, when it is necessary to clean impurities on the surface of the back roller 20, the drive assembly 50 drives the scraper assembly 30 to rotate until the scraper 31 contacts the surface of the back roller 20. When the back roller 20 rotates, the impurities on the surface of the back roller 20 can be scraped off by the scraper 31; when it is not necessary to clean the back roller 20, the drive assembly 50 drives the scraper assembly 30 to rotate to a position where the scraper 31 is away from the surface of the back roller 20, which can reduce the wear of the scraper 31 by the back roller 20 during the coating process; or when it is necessary to remove impurities on the scraper 31, the drive assembly 50 drives the scraper assembly 30 to rotate to a position where the scraper 31 is away from the surface of the back roller 20, so as to facilitate the removal of impurities on the yoke of the scraper 31.

[0079] See also Figure 5 In one embodiment of the present invention, the scraper assembly 30 also includes a rotating shaft 32 and a scraper mounting structure 33; a driving assembly drives the rotating shaft 32 to rotate and is arranged on the frame 10; the scraper mounting structure 33 is arranged on the rotating shaft 32, and the scraper 31 is installed on the scraper mounting structure 33; and the fine-tuning assembly 40 is arranged on the scraper mounting structure 33.

[0080] In some embodiments, both side plates 12 of the frame 10 are provided with shaft holes, and both ends of the rotating shaft 32 are respectively inserted into the shaft holes of the two side plates 12, so that the rotating shaft 32 can rotate relative to the frame 10 in cooperation with the two shaft holes.

[0081] The scraper mounting structure 33 is a structure for mounting the scraper 31 so that the scraper 31 extends in the axial direction of the backing roller 20 .

[0082] Such a design can improve the reliability of the scraper assembly 30 during rotation by mounting the scraper assembly 30 as a whole on the frame 10 via the rotating shaft 32, and can facilitate the installation of the scraper 31 and the fine-tuning assembly 40 by mounting the scraper 31 and the fine-tuning assembly 40 on the scraper mounting structure 33.

[0083] See also Figure 5 In one embodiment of the present invention, the scraper mounting structure 33 includes an adapter plate 331, a scraper mounting plate 332 and a scraper pressing plate 333; the adapter plate 331 is arranged on the rotating shaft 32; the scraper mounting plate 332 is arranged on the side of the adapter plate 331 away from the rotating shaft 32; the scraper pressing plate 333 is installed on the scraper mounting plate 332, and the scraper pressing plate 333 presses the scraper 31 on the scraper mounting plate 332; the fine-tuning component 40 is arranged on the scraper pressing plate 333.

[0084] The adapter plate 331 is a structure used to fix the scraper mounting plate 332 on the rotating shaft 32, and plays a role of adapter. The specific shape of the adapter plate 331 can be rectangular, circular, triangular, etc., which is not specifically limited here.

[0085] The scraper mounting plate 332 is a structure for mounting the scraper 31 , and the scraper 31 can be supported on the scraper mounting plate 332 .

[0086] The scraper pressing plate 333 is a structure for pressing the scraper 31 onto the scraper mounting plate 332 , which can improve the mounting reliability of the scraper 31 .

[0087] With such a design, when installing the scraper 31, the adapter plate 331 is first connected to the rotating shaft 32, and then the scraper mounting plate 332 is installed on the adapter plate 331. Then, the scraper 31 is placed on the mounting surface of the scraper mounting plate 332, and then the scraper pressing plate 333 is used to press the scraper 31 onto the scraper mounting plate 332 to achieve reliable installation of the scraper 31, thereby reducing the risk of the scraper 31 moving or even falling off from the scraper mounting structure 33 during use.

[0088] In some embodiments, the scraper mounting plate 332 may be fixedly mounted on the adapter plate 331 by using screws, and the scraper pressing plate 333 may also be fixedly mounted on the scraper mounting plate 332 by using screws.

[0089] See also Figures 1 to 4 , Figure 6 In one embodiment of the present invention, the driving assembly 50 includes a mounting plate 51 and a driving structure 52; the mounting plate 51 is arranged on the frame 10; the driving structure 52 includes a driving member 521 and a connecting block 522, the connecting block 522 is transmission-connected to the driving member 521, and the driving member 521 drives the connecting block 522 to move toward or away from the scraper assembly 30 to drive the scraper assembly 30 to rotate.

[0090] The mounting plate 51 is a structure for fixing the driving assembly 50 on the frame 10. The specific shape of the mounting plate 51 can be straight, U-shaped, multi-section bent, rectangular, circular, triangular, etc., which is not specifically limited here.

[0091] The driving structure 52 is a structure for driving the scraper assembly 30 to rotate. The driving member 521 of the driving structure 52 can be a rotary cylinder, and the connecting block 522 is threadedly connected to the output shaft of the rotary cylinder to convert the rotary motion of the rotary cylinder into the linear motion of the connecting block 522, so as to accurately adjust the rotation angle of the scraper assembly 30. The connecting block 522 of the driving structure 52 is a structure for transmitting the driving force output by the driving member 521 to the scraper assembly 30.

[0092] With such a design, the driving member 521 can drive the connecting block 522 to move toward or away from the scraper assembly 30, that is, the scraper assembly 30 can be driven to rotate smoothly through the connecting block 522 to accurately adjust the rotation angle of the scraper assembly 30.

[0093] See also Figure 6 In one embodiment of the present invention, the mounting plate 51 extends along the length direction of the scraper 31 , and at least two driving structures 52 are provided, and at least one driving structure 52 is provided at each end of the mounting plate 51 .

[0094] In such a design, since the scraper assembly 30 is relatively long, at least two driving structures 52 are used to simultaneously drive the scraper assembly 30 to rotate, thereby preventing deformation of the scraper assembly 30 during the process of driving the scraper assembly 30 to rotate.

[0095] See also Figure 4 , Figure 7 In one embodiment of the present invention, the driving assembly 50 drives the scraper assembly 30 to rotate so that the scraper assembly 30 has a scraping position and a stripping position; the coating device 100 also includes a chip receiving assembly 60, which is arranged on the frame 10 and is located on the side of the scraper assembly 30 away from the back roller 20; when the scraper assembly 30 is in the scraping position, the scraper 31 is configured to scrape off impurities on the surface of the back roller 20; when the scraper assembly 30 is in the stripping position, the scraper 31 is located above the chip receiving assembly 60, and the chip receiving assembly 60 is configured to receive impurities falling from the scraper 31.

[0096] It should be noted that the scraping position refers to the position of the scraper assembly 30 when it is in a state of cleaning impurities on the surface of the back roller 20; the stripping position refers to the position of the scraper assembly 30 when it is in a state of cleaning impurities on the scraper 31.

[0097] With such a design, when it is necessary to clean impurities on the surface of the back roller 20, the scraper assembly 30 rotates to the scraping position so that the scraper 31 contacts the surface of the back roller 20. At this time, the impurities on the surface of the back roller 20 can be scraped off by the scraper 31 under the rotation of the back roller 20; after a certain amount of impurities are scraped off the scraper 31, the impurities on the scraper 31 need to be removed, and the scraper assembly 30 can be rotated to the stripping position so that the scraper 31 is located above the chip collecting assembly 60. At this time, the impurities on the scraper 31 will automatically fall to the chip collecting assembly 60 below under the action of gravity for collection, thereby realizing automatic collection of impurities.

[0098] In some embodiments, the chip collecting assembly 60 is provided with a chip collecting groove 61 so that impurities on the scraper 31 fall into the chip collecting groove 61 below under the action of gravity and are collected.

[0099] In some embodiments, in order to facilitate cleaning of the chip receiving assembly 60, the chip receiving assembly 60 can be detachably mounted on the frame 10. When a certain amount of impurities are collected in the chip receiving groove 61 of the chip receiving assembly 60, the chip receiving assembly 60 can be removed from the frame 10, the impurities in the chip receiving groove 61 can be poured out, and then the chip receiving assembly 60 can be reinstalled on the frame 10.

[0100] See also Figure 5 In one embodiment of the present invention, the scraper assembly 30 is provided with a guide rail 333a, which extends along the length direction of the scraper 31, and the fine-tuning assembly 40 is provided with a slider 411a, which slides with the guide rail 333a.

[0101] Such a design can more smoothly adjust the position of the fine-tuning component 40 with the cooperation of the slider 411a and the guide rail 333a, so as to accurately slide the fine-tuning component 40 to the local position where the scraper 31 is deformed, so as to fine-tune and flatten the deformed local position.

[0102] See also Figure 1 In one embodiment of the present invention, a plurality of fine-tuning components 40 are provided, and the plurality of fine-tuning components 40 are distributed at intervals along the extension direction of the scraper 31 .

[0103] With such a design, since the scraper 31 is relatively long, there will be multiple locations where the scraper 31 is locally deformed. Therefore, by providing multiple fine-tuning components 40, the multiple deformed local locations of the scraper 31 can be fine-tuned and flattened by the multiple fine-tuning components 40, so that the various positions of the scraper 31 in the extension direction are consistent with the degree of compression of the back roller 20. In this way, when the back roller 20 rotates, the scraper 31 can fully clean the impurities on the surface of the back roller 20, thereby effectively solving the problem that the local positions of the back roller 20 cannot be cleaned.

[0104] In actual application, multiple fine-tuning components 40 can be concentrated in the middle part of the scraper 31, or can be concentrated in the end part of the scraper 31, or fine-tuning components 40 can be set in the middle and end parts of the scraper 31. Specifically, the fine-tuning components 40 can be set in accordance with the local positions of the scraper 31 that are easily deformed.

[0105] See also Figure 1 In one embodiment of the present invention, at least one fine-tuning component 40 is correspondingly provided at both ends and the middle portion of the scraper 31 .

[0106] With such a design, since the two ends and the middle of the scraper 31 are more prone to local deformation, at least one fine-tuning component 40 is provided at each end and the middle of the scraper 31 to fully fine-tune and flatten the deformed local position of the scraper 31.

[0107] See also Figures 1 to 4 , Figure 8 In one embodiment of the present invention, the coating device 100 further includes a limit assembly 70, which is disposed on the frame 10. The limit assembly 70 is pressed against the side of the scraper 31 away from the back roller 20 and is configured to adjust the gap between the scraper 31 and the back roller 20.

[0108] The limiting assembly 70 is a structure for adjusting the gap between the scraper 31 and the back roller 20 . Specifically, the limiting assembly 70 includes but is not limited to structures such as a push rod, a pressure block, and a pressure plate.

[0109] With such a design, the gap between the scraper 31 and the back roller 20 can be adjusted through the limit assembly 70 to control the pressing force of the scraper 31 on the back roller 20, thereby controlling the cleaning force of the scraper 31 on the surface of the back roller 20. In addition, after the scraper 31 is worn by the back roller 20, the pressing force on the scraper 31 can also be increased through the limit assembly 70 to prevent the gap between the scraper 31 and the back roller 20 from being too large, thereby affecting the cleaning effect of the scraper 31 on the surface of the back roller 20.

[0110] In actual application, the limiting assembly 70 can be adjusted manually or mechanically to adjust the gap between the scraper 31 and the back roller 20 .

[0111] See also Figure 1 In one embodiment of the present invention, two limit assemblies 70 are provided, and the two limit assemblies 70 are respectively arranged near the two ends of the scraper 31.

[0112] In such a design, since the scraper 31 is relatively long, two limit assemblies 70 are respectively provided near the two ends of the scraper 31. The two limit assemblies 70 can be used to simultaneously press the scraper 31, thereby improving the balance of pressing the scraper 31 and preventing the scraper 31 from warping and deforming during the process of pressing the scraper 31.

[0113] See also Figure 8 In one embodiment of the present invention, the limit assembly 70 includes a mounting block 71, an adjusting screw 72 and a limit block 73; the mounting block 71 is arranged on the frame 10; the adjusting screw 72 is threadedly connected to the mounting block 71; the limit block 73 is threadedly sleeved on the adjusting screw 72; under the rotation of the adjusting screw 72, the limit block 73 is driven to move toward or away from the scraper 31 to adjust the gap between the scraper 31 and the back roller 20.

[0114] The mounting block 71 is a structure for fixing the limiting assembly 70 on the frame 10 , so as to facilitate the installation of the limiting assembly 70 .

[0115] The adjusting screw 72 is a structure for driving the limit block 73 to move. When the adjusting screw 72 is turned under the action of external force, the adjusting screw 72 can be rotated relative to the mounting block 71, thereby driving the limit block 73 to move toward or away from the scraper 31.

[0116] The stop block 73 is a structure for pressing the scraper 31 to adjust the gap between the scraper 31 and the backing roller 20 when the stop block 73 moves toward or away from the scraper 31 .

[0117] With such a design, when the gap between the scraper 31 and the back roller 20 needs to be adjusted, the adjusting screw 72 is rotated, and the limit block 73 threadedly matched with the adjusting screw 72 moves along the extension direction of the adjusting screw 72 under the rotation of the screw, so that the limit block 73 moves toward or away from the scraper 31. When the limit block 73 moves toward the scraper 31, the limit block 73 will increase the pressing force on the scraper 31 to reduce the gap between the scraper 31 and the back roller 20; when the limit block 73 moves away from the scraper 31, the limit block 73 will reduce the pressing force on the scraper 31 to increase the gap between the scraper 31 and the back roller 20, so that the gap between the scraper 31 and the back roller 20 can be accurately adjusted as needed to achieve a better cleaning effect on the back roller 20.

[0118] In some embodiments, a hand wheel may be provided at one end of the adjusting screw rod 72, and the user may adjust the gap between the scraper 31 and the back roller 20 by turning the hand wheel. Of course, in other embodiments, a motor may also be provided to drive the adjusting screw rod 72 to rotate.

[0119] According to some embodiments of the present application, the present application provides a coating device 100, see Figures 1 to 8The coating device 100 includes a frame 10, a driver, a back roller 20, a scraper assembly 30, a fine-tuning assembly 40, a driving assembly 50, a chip receiving assembly 60 and a limiting assembly 70; the back roller 20 is arranged on the frame 10 and is connected to the driver by transmission, and the driver drives the back roller 20 to rotate; the scraper assembly 30 is arranged on the frame 10 and includes a scraper 31, the scraper 31 is located on one side of the back roller 20 and extends along the axial direction of the back roller 20, and the scraper 31 is configured to scrape off impurities on the surface of the back roller 20; the fine-tuning assembly 40 is arranged on the scraper assembly 30 and is located on the side of the scraper 31 away from the back roller 20, the fine-tuning assembly 40 is configured to press the local position of the scraper 31, and the fine-tuning assembly 40 is used to slide along the extension direction of the scraper 31. The driving assembly 50 is configured to drive the scraper assembly 30 to rotate. The scraper assembly 30 rotates and has a scraping position and a stripping position; the coating device 100 further includes a chip receiving assembly 60, which is arranged on the frame 10 and is located on the side of the scraper assembly 30 away from the back roller 20; when the scraper assembly 30 is in the scraping position, the scraper 31 is configured to scrape off impurities on the surface of the back roller 20; when the scraper assembly 30 is in the stripping position, the scraper 31 is located above the chip receiving assembly 60, and the chip receiving assembly 60 is configured to receive impurities dropped from the scraper 31. The limiting assembly 70 is pressed against the side of the scraper 31 away from the back roller 20, and is configured to adjust the gap between the scraper 31 and the back roller 20.

[0120] In the technical solution of the embodiment of the present application, the working process of the technical solution of the present invention is as follows: first, the driving component 50 drives the scraper component 30 to rotate to the scraping position, so that the scraper 31 is located on one side of the back roller 20 and contacts the surface of the back roller 20; then, the limiting component 70 presses the side of the scraper 31 away from the back roller 20 to adjust the gap between the scraper 31 and the back roller 20; then, the fine-tuning component 40 is slid to the position where the scraper 31 is deformed, so that the fine-tuning component 40 is pressed on the local position of the deformation of the scraper 31, so that the deformation of the local position of the scraper 31 can be locally adjusted, so that The various positions of the scraper 31 in the extension direction are kept consistent with the degree of compression of the back roller 20; the back roller 20 is started, and the impurities on the surface of the back roller 20 are scraped off by the scraper 31 to solve the problem that some parts of the back roller 20 cannot be cleaned thoroughly; after a certain amount of impurities are scraped off the scraper 31, the impurities on the scraper 31 need to be removed, and the drive assembly 50 drives the scraper assembly 30 to rotate to the material removal position so that the scraper 31 is located above the chip collecting assembly 60. At this time, the impurities on the scraper 31 will automatically fall to the chip collecting assembly 60 below under the action of gravity for collection, so as to realize automatic collection of impurities.

[0121] See also Fig. 9The present invention also proposes a back roller cleaning method based on a coating device 100. The specific structure of the coating device 100 refers to the above embodiment. Since the back roller cleaning method adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0122] The back roller cleaning method comprises the following steps: S20, controlling the fine-tuning assembly 40 to slide along the extension direction of the scraper 31, so that the fine-tuning assembly 40 slides to a local position where the scraper 31 is deformed; S30, controlling the fine-tuning assembly 40 to press the local position of the scraper 31; S40 , controlling the driver to drive the back roller 20 to rotate, so that the scraper 31 scrapes off impurities on the surface of the back roller 20 .

[0123] With such a design, since the scraper 31 is relatively long, when a local position of the scraper 31 is deformed, the fine-tuning component 40 can be controlled to slide to the position where the scraper 31 is deformed, so as to control the fine-tuning component 40 to be pressed tightly at the local position where the scraper 31 is deformed. The deformation of the local position of the scraper 31 can be locally adjusted, so that the various positions of the scraper 31 in the extension direction are consistent with the degree of pressure of the back roller 20. In this way, when the control driver drives the back roller 20 to rotate, the scraper 31 can be used to fully clean the impurities on the surface of the back roller 20, thereby effectively solving the problem that the local position of the back roller 20 cannot be cleaned.

[0124] See also Fig.10 In one embodiment of the present invention, the control of the fine-tuning component 40 to press the local position of the scraper 31 includes: S31 , controlling the adjusting member 43 of the fine-tuning assembly 40 to drive the pressure head 42 to move toward the back roller 20 , so that the pressure head 42 presses a local position of the scraper 31 .

[0125] With such a design, after controlling the fine-tuning assembly 40 to slide to the position where the scraper 31 is deformed, the adjusting member 43 is operated to control the adjusting member 43 to apply a thrust to the pressure head 42 pressing one end of the scraper 31, so that the pressure head 42 rotates and the pressure head 42 presses one end of the scraper 31 toward the back roller 20, so that the deformed local position of the scraper 31 can be flattened by the pressure head 42, and the deformed local position of the scraper 31 can be adjusted.

[0126] See also Fig.11 In one embodiment of the present invention, the control of the fine-tuning component 40 to slide along the extension direction of the scraper 31, before the fine-tuning component 40 slides to the local position where the scraper 31 is deformed, further includes: S10, controlling the driving assembly 50 to drive the scraper assembly 30 to rotate to the scraping position.

[0127] With such a design, when it is necessary to clean impurities on the surface of the back roller 20, the control drive assembly 50 drives the scraper assembly 30 to rotate to the scraping position so that the scraper 31 contacts the surface of the back roller 20. At this time, the control driver drives the back roller 20 to rotate, and the impurities on the surface of the back roller 20 can be scraped off by the scraper 31.

[0128] See also Fig.11 In one embodiment of the present invention, after the control driver drives the back roller 20 to rotate so that the scraper 31 scrapes off impurities on the surface of the back roller 20, the control driver further includes: S50 , control the driving assembly 50 to drive the scraper assembly 30 to rotate to the material stripping position, so that the scraper 31 is located above the chip receiving assembly 60 , and the chip receiving assembly 60 is configured to receive impurities dropped from the scraper 31 .

[0129] With such a design, after a certain amount of impurities are scraped off the scraper 31, the impurities on the scraper 31 need to be cleaned, and the driving assembly 50 is controlled to drive the scraper assembly 30 to rotate to the material removing position so that the scraper 31 is located above the chip collecting assembly 60. At this time, the impurities on the scraper 31 will automatically fall to the chip collecting assembly 60 below under the action of gravity for collection, thereby realizing automatic collection of impurities.

[0130] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A coating device, characterized in that: include: frame; A driver, arranged on the frame; A back roller, arranged on the frame and connected to the driver in a transmission manner, wherein the driver drives the back roller to rotate; A scraper assembly is provided on the frame and comprises a scraper, the scraper is located on one side of the back roller and extends along the axial direction of the back roller, and the scraper is configured to scrape off impurities on the surface of the back roller; The fine adjustment component is arranged on the scraper component and is located on the side of the scraper away from the back roller. The fine adjustment component is configured to press the local position of the scraper and is used to slide along the extension direction of the scraper.

2. The coating device according to claim 1, characterized in that The fine-tuning component comprises: A fine-tuning mounting block, provided on the scraper assembly and used for sliding along the extension direction of the scraper; A pressure head, one end of which is hinged to the fine-tuning mounting block, and the other end of which is pressed tightly against a side of the scraper away from the back roller; An adjusting member is arranged on the fine-tuning mounting block, and the adjusting member drives the end of the pressure head pressed against the scraper to move toward or away from the back roller.

3. The coating device according to claim 2, characterized in that The adjusting member is an adjusting screw, and the adjusting screw is threadedly connected to the fine-tuning mounting block.

4. The coating device according to claim 3, characterized in that The fine-tuning mounting block comprises a first mounting section and a second mounting section arranged at an angle; The first mounting section is provided on the scraper assembly and is used to slide along the extension direction of the scraper. One end of the pressure head is hinged to the first mounting section. The second mounting section is connected to one end of the first mounting section away from the scraper assembly and is located on the side of the pressure head away from the scraper. The adjusting screw is threadedly connected to the second mounting section.

5. The coating device according to claim 2, characterized in that The pressure head comprises a connecting rod and a pressure rod arranged at an angle; One end of the connecting rod is hinged to the fine-tuning mounting block, and the other end of the connecting rod extends in a direction away from the fine-tuning mounting block; One end of the pressure rod is connected to one end of the connecting rod away from the fine-tuning mounting block, and the other end of the pressure rod extends toward the scraper and is pressed against the scraper.

6. The coating device according to any one of claims 1 to 5, characterized in that The coating device also includes a driving assembly, which drives the scraper assembly to rotate on the frame.

7. The coating device according to claim 6, characterized in that The scraper assembly also includes: A rotating shaft, wherein the driving assembly drives the rotating shaft to rotate and is disposed on the frame; The scraper mounting structure is arranged on the rotating shaft, and the scraper is mounted on the scraper mounting structure; the fine-tuning component is arranged on the scraper mounting structure.

8. The coating device according to claim 7, characterized in that The scraper installation structure comprises: An adapter plate, arranged on the rotating shaft; A scraper mounting plate, arranged on a side of the adapter plate away from the rotating shaft; A scraper pressing plate is installed on the scraper mounting plate, and the scraper pressing plate presses the scraper onto the scraper mounting plate; the fine-tuning component is arranged on the scraper pressing plate.

9. The coating device according to claim 6, characterized in that The drive assembly comprises: A mounting plate, arranged on the frame; The driving structure includes a driving member and a connecting block, wherein the connecting block is drivingly connected to the driving member, and the driving member drives the connecting block to move toward or away from the scraper assembly to drive the scraper assembly to rotate.

10. The coating device according to claim 6, characterized in that The driving assembly drives the scraper assembly to rotate so that the scraper assembly has a scraping position and a stripping position; the coating device further comprises a chip receiving assembly, which is arranged on the frame and located on a side of the scraper assembly away from the back roller; When the scraper assembly is in the scraping position, the scraper is configured to scrape off impurities on the surface of the back roller; when the scraper assembly is in the stripping position, the scraper is located above the chip receiving assembly, and the chip receiving assembly is configured to receive impurities falling from the scraper.

11. The coating device according to any one of claims 1 to 5, characterized in that There are multiple fine-tuning components, and the multiple fine-tuning components are distributed at intervals along the extension direction of the scraper; and there is at least one fine-tuning component corresponding to each of the two ends and the middle of the scraper.

12. The coating device according to any one of claims 1 to 5, characterized in that The coating device also includes: A limiting assembly is arranged on the frame, the limiting assembly is pressed against a side of the scraper away from the back roller, and is configured to adjust the gap between the scraper and the back roller.

13. The coating device according to claim 12, characterized in that The limiting component comprises: A mounting block, arranged on the frame; An adjusting screw rod, threadedly connected to the mounting block; A limit block is threadedly sleeved on the adjusting screw rod; when the adjusting screw rod rotates, the limit block is driven to move toward or away from the scraper to adjust the gap between the scraper and the back roller.

14. A back roller cleaning method for a coating device according to any one of claims 1 to 13, characterized in that: The back roller cleaning method comprises the following steps: Controlling the fine-adjustment assembly to slide along the extension direction of the scraper, so that the fine-adjustment assembly slides to a local position where the scraper is deformed; Control the local position of the scraper pressed by the fine-tuning assembly; The driver is controlled to drive the back roller to rotate, so that the scraper scrapes off the impurities on the surface of the back roller.

15. The back roller cleaning method according to claim 14, characterized in that: The control of the fine-tuning assembly to press the local position of the scraper includes: The adjusting member of the fine adjustment assembly is controlled to drive the pressure head to move toward the back roller, so that the pressure head presses the local position of the scraper.

16. The back roller cleaning method according to claim 14, characterized in that: The control of the fine-tuning assembly to slide along the extension direction of the scraper, so that the fine-tuning assembly slides to the local position where the scraper is deformed, also includes: The control driving assembly drives the scraper assembly to rotate to the scraping position.

17. The back roller cleaning method according to claim 14, characterized in that: After the control driver drives the back roller to rotate so that the scraper scrapes off the impurities on the surface of the back roller, the method further comprises: The control driving assembly drives the scraper assembly to rotate to the material stripping position, so that the scraper is located above the chip receiving assembly, and the chip receiving assembly is configured to receive impurities dropped from the scraper.

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