Coating Equipment and Back Roller Cleaning Method

Abstract

The present invention discloses a coating device and a method for cleaning a back roller, which relates to the technical field of battery processing equipment. The coating device includes 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 drivingly connected to the driver, and the driver drives the back roller to rotate; the scraper assembly is arranged on the frame and includes 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, and the fine-tuning assembly is configured to press a partial position of the scraper, and the fine-tuning assembly is used to slide along the extending direction of the scraper. The technical solution provided by the present invention can solve the problem that the partial position of the back roller cannot be cleaned thoroughly.

Description

Technical Field

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

[0002] During the production process of lithium battery coating, anode coating electrodes often have powder dropping phenomena, resulting in the surface of the back roller of the coating equipment being easily adsorbed with carbon powder shed from the electrodes. The carbon powder adsorbed on the surface of the back roller is likely to fall onto the subsequent coated electrodes, causing defective products.

[0003] In order to improve the influence brought by the shedding of carbon powder, a scraper is usually used to clean impurities such as carbon powder on the surface of the back roller. However, if the scraper is too long, it is prone to deformation, resulting in some local positions of the back roller not being cleaned thoroughly. Summary of the Invention

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

[0005] The present application provides a coating equipment, including 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 in transmission connection with the driver, and the driver drives the back roller to rotate; the scraper assembly is arranged on the frame and includes 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 a local position of the scraper, and the fine-tuning assembly is used for sliding along the extending direction of the scraper.

[0006] In the technical solution of the embodiment of the present application, in the technical solution of the present invention, the scraper is arranged on one side of the back roller and extends along the axial direction of the back roller. When the driver drives the back roller to rotate, impurities on the surface of the back roller can be scraped off by the scraper. Among them, a fine-tuning assembly for sliding along the extending direction of the scraper is arranged on the scraper assembly. Since the scraper is relatively long, when a local position of the scraper is deformed, the fine-tuning assembly can be slid to the deformed local position of the scraper, so as to press the deformed local position of the scraper through the fine-tuning assembly, and the deformation of the local position of the scraper can be locally adjusted, so that the pressing degree of each position of the scraper in the extending direction with the back roller is kept consistent. 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, thus effectively solving the problem that some local positions of the back roller cannot be cleaned thoroughly.

[0007] In some embodiments, the fine-tuning component includes a fine-tuning mounting block, a pressing head, and an adjusting member; the fine-tuning mounting block is disposed on the doctor blade assembly and is used to slide along the extending direction of the doctor blade; one end of the pressing head is hinged to the fine-tuning mounting block, and the other end of the pressing head presses against the side of the doctor blade away from the backing roll; the adjusting member is disposed on the fine-tuning mounting block, and the adjusting member drives one end of the pressing head pressing against the doctor blade to move towards or away from the backing roll. With such a design, after sliding the fine-tuning component to the position where the doctor blade is deformed, operate the adjusting member to apply a thrust to one end of the pressing head pressing against the doctor blade through the adjusting member, so that the pressing head rotates and the end of the pressing head pressing against the doctor blade moves towards the backing roll, and the locally deformed position of the doctor blade can be flattened by the pressing head, and the locally deformed position of the doctor blade can be adjusted.

[0008] In some embodiments, the adjusting member is an adjusting screw rod, and the adjusting screw rod is threadedly connected to the fine-tuning mounting block. With such a design, the adjusting screw rod can be directly turned to convert the rotational motion of the adjusting screw rod into a linear motion, so as to drive one end of the pressing head pressing against the doctor blade to move towards or away from the backing roll. 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 arranged at an angle; the first mounting section is disposed on the doctor blade assembly and is used to slide along the extending direction of the doctor blade, and one end of the pressing head is hinged to the first mounting section; the second mounting section is connected to the end of the first mounting section away from the doctor blade assembly and is located on the side of the pressing head away from the doctor blade, and the adjusting screw rod is threadedly connected to the second mounting section. With such a design, one end of the pressing head can be hinged to the first mounting section, and the adjusting screw rod can be installed on the second mounting section, which is more convenient for realizing the installation of the pressing head and the adjusting screw rod.

[0010] In some embodiments, the pressing head includes a connecting rod and a pressing 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 pressing rod is connected to the end of the connecting rod away from the fine-tuning mounting block, and the other end of the pressing rod extends towards the doctor blade and presses against the doctor blade. With such a design, the pressing head composed of the connecting rod and the pressing rod can be in a seven-shaped structure. This design is more convenient for hinging the pressing head on the fine-tuning mounting block. At the same time, under the adjustment of the adjusting member, the connecting rod is driven to rotate, driving the pressing rod to press against the doctor blade, so as to flatten the locally deformed position of the doctor blade by the pressing rod, and the locally deformed position of the doctor blade can be adjusted.

[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, a driving component drives a blade component to rotate so that the blade component has a material scraping position and a material discharging position; the coating device further includes a chip receiving component which is arranged on the frame and located on one side of the blade component away from the back roller; under the condition that the blade component is in the material scraping position, the blade is configured to scrape off impurities on the surface of the back roller; under the condition that the blade component is in the material discharging position, the blade is located above the chip receiving component, and the chip receiving component is configured to receive the impurities falling from the blade. With such a design, when it is necessary to clean the impurities on the surface of the back roller, the blade component rotates to the material scraping position so that the blade contacts the surface of the back roller. At this time, under the rotation of the back roller, the impurities on the surface of the back roller can be scraped off by the blade; after a certain amount of impurities are scraped off by the blade, when it is necessary to remove the impurities on the blade, the blade component can rotate to the material discharging position so that the blade is located above the chip receiving component. At this time, the impurities on the blade will automatically fall onto the chip receiving component below under the action of gravity for collection, so as to realize the automatic collection of impurities.

[0017] In some embodiments, the blade component is provided with a guide rail which extends along the length direction of the blade, and the fine-tuning component is provided with a slider which is slidably matched with the guide rail. With such a design, the position of the fine-tuning component can be adjusted more smoothly under the cooperation of the slider and the guide rail, so as to accurately slide the fine-tuning component to the local position where the blade is deformed, and perform fine-tuning and flattening on the deformed local position.

[0018] In some embodiments, there are multiple fine-tuning components which are spaced apart along the extending direction of the blade. With such a design, since the blade is relatively long, there will be multiple positions where the blade is locally deformed. Therefore, by providing multiple fine-tuning components, the multiple deformed local positions of the blade can be respectively fine-tuned and flattened by the multiple fine-tuning components, so that the pressing degree of each position of the blade in the extending direction with respect to the back roller is kept consistent. In this way, under the rotation of the back roller, the impurities on the surface of the back roller can be fully cleaned by the blade, thus effectively solving the problem that the local position of the back roller cannot be cleaned cleanly.

[0019] In some embodiments, there is at least one fine-tuning component corresponding to both ends and the middle of the blade. With such a design, since the positions at both ends and the middle of the blade are more likely to be locally deformed, by having at least one fine-tuning component corresponding to both ends and the middle of the blade, the deformed local positions of the blade can be fully fine-tuned and flattened.

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

[0021] In some embodiments, there are two limiting components, and the two limiting components are respectively disposed near both ends of the squeegee. With such a design, since the length of the squeegee is relatively long, two limiting components are respectively provided at positions near both ends of the squeegee. The two limiting components can press the squeegee simultaneously, improving the balance of the pressing force on the squeegee and preventing the squeegee from warping and deforming during the process of pressing the squeegee.

[0022] In some embodiments, the limiting component includes a mounting block, an adjusting screw rod, and a limiting block; the mounting block is disposed on the frame; the adjusting screw rod is threadedly connected to the mounting block; the limiting block is threadedly sleeved on the adjusting screw rod; under the rotation of the adjusting screw rod, the limiting block is driven to move towards or away from the squeegee to adjust the gap between the squeegee and the back roller. With such a design, when it is necessary to adjust the gap between the squeegee and the back roller, the adjusting screw rod is rotated. Under the rotation of the screw rod, the limiting block that is threadedly engaged with it moves along the extension direction of the adjusting screw rod, so that the limiting block moves towards or away from the squeegee. When the limiting block moves towards the squeegee, the limiting block will increase the pressing force on the squeegee to reduce the gap between the squeegee and the back roller; when the limiting block moves away from the squeegee, the limiting block will reduce the pressing force on the squeegee to increase the gap between the squeegee and the back roller, thereby accurately adjusting the gap between the squeegee and the back roller 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. The back roller cleaning method includes the following steps:

[0024] Control the fine-tuning component to slide along the extension direction of the squeegee component so that the fine-tuning component slides to the local position where the squeegee is deformed;

[0025] Control the fine-tuning component to press the local position of the squeegee;

[0026] Control the driver to drive the back roller to rotate so that the squeegee scrapes off the impurities on the surface of the back roller.

[0027] In such a design, since the scraper is relatively long, when a local deformation occurs in the scraper, the fine-tuning component can be controlled to slide to the deformed position of the scraper, so as to control the fine-tuning component to press tightly against the locally deformed position of the scraper, and the local deformation of the local position of the scraper can be adjusted locally, so that the pressing degree of each position of the scraper in the extending direction is consistent with that of the back roller. In this way, when the control driver drives the back roller to rotate, the impurities on the surface of the back roller can be fully cleaned by the scraper, thus effectively solving the problem that the local position of the back roller cannot be cleaned cleanly.

[0028] In some embodiments, the controlling the fine-tuning component to press tightly against the local position of the scraper includes:

[0029] Controlling the adjusting member of the fine-tuning component to drive the pressing head to move towards the back roller, so that the pressing head presses tightly against the local position of the scraper.

[0030] In such a design, after the fine-tuning component is controlled to slide to the deformed position of the scraper, operate the adjusting member to control the adjusting member to apply a thrust to one end of the pressing head pressing against the scraper, so that the pressing head rotates and the pressing head presses against the back roller while moving towards one end of the scraper, and the locally deformed position of the scraper can be flattened by the pressing head, and the locally deformed position of the scraper can be adjusted.

[0031] In some embodiments, before the fine-tuning component is controlled to slide along the extending direction of the scraper and the fine-tuning component slides to the locally deformed position of the scraper, it further includes:

[0032] Controlling the driving component to drive the scraper component to rotate to the scraping position.

[0033] In such a design, when cleaning the impurities on the surface of the back roller, control the driving component to drive the scraper component to rotate to the scraping position so that the scraper contacts the surface of the back roller. At this time, control the driver to drive the back roller to rotate, and the impurities on the surface of the back roller can be scraped off by the scraper.

[0034] In some embodiments, after the control driver drives the back roller to rotate and the scraper scrapes off the impurities on the surface of the back roller, it further includes:

[0035] Controlling the driving component to drive the scraper component to rotate to the discharging position, so that the scraper is located above the chip receiving component, and the chip receiving component is configured to receive the impurities falling from the scraper.

[0036] In such a design, when a certain amount of impurities are scraped off the scraper, it is necessary to remove the impurities on the scraper. Control the driving component to drive the scraper component to rotate to the discharging position so that the scraper is located above the chip receiving component. At this time, the impurities on the scraper will automatically fall onto the lower chip receiving component under the action of gravity for collection, so as to realize the automatic collection of impurities.

[0037] The above description is only an overview of the technical solution of this application. In order to understand the technical means of this application more clearly, it can be implemented according to the content of the specification. And in order to make other purposes, features and advantages of this application more obvious and understandable, the specific implementation manners of this application are hereinafter specifically exemplified. Description of the Drawings

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0039] Figure 1 Structural schematic diagram of an embodiment of the coating equipment of this application;

[0040] Figure 2 For Figure 1 Partial enlarged view at A in

[0041] Figure 3 Partial side view of a part of the structure of an embodiment of the coating equipment of this application;

[0042] Figure 4 For Figure 3 Partial enlarged view at B in

[0043] Figure 5 Structural schematic diagram of the scraper assembly and the fine-tuning assembly in an embodiment of the coating equipment of this application;

[0044] Figure 6 Structural schematic diagram of the drive assembly in an embodiment of the coating equipment of this application;

[0045] Figure 7 Structural schematic diagram of the chip receiving assembly in an embodiment of the coating equipment of this application;

[0046] Figure 8 Structural schematic diagram of the limit assembly in an embodiment of the coating equipment of this application;

[0047] Figure 9 Flow chart of the steps of an embodiment of the back roll cleaning method of this application;

[0048] Figure 10 Flow chart of the steps of an embodiment of the back roll cleaning method of this application;

[0049] Figure 11 Flow chart of the steps of an embodiment of the back roll cleaning method of this application.

[0050] Explanation of the reference numerals in the drawings:

[0051]

[0052] The realization, functional features and advantages of the object of the present invention will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0053] The embodiments of the technical solutions of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to illustrate the technical solutions of the present application more clearly, and thus are only examples and should not be used to limit the protection scope of the present application.

[0054] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill 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" and any variations thereof in the description and claims of this application and the above drawings are intended to cover non-exclusive inclusion.

[0055] In the description of the embodiments of the present application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity, specific order or primary-secondary relationship of the indicated technical features. In the description of the embodiments of the present application, "a plurality of" means two or more, unless otherwise specifically defined.

[0056] Referring to "embodiments" herein means that the specific features, structures or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase appears in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0057] In the description of the embodiments of the present application, the term "a plurality of" means two or more (including two). Similarly, "a plurality of groups" means two or more groups (including two groups), and "a plurality of pieces" means two or more pieces (including two pieces).

[0058] In the description of the embodiments of the present application, the orientation or positional relationship indicated by technical terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It 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 component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation on the embodiments of the present application.

[0059] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can also be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0060] During the production process of lithium battery coating, the anode coating electrode sheet often has a phenomenon of powder falling off, resulting in the surface of the back roller of the coating equipment being easily adsorbed with the carbon powder falling off from the electrode sheet. The carbon powder adsorbed on the surface of the back roller is likely to fall on the subsequent coated electrode sheet, causing defective products.

[0061] In order to improve the influence caused by the carbon powder falling off, usually a scraper is used to clean the carbon powder and other impurities on the surface of the back roller. However, if the scraper is too long, it is easy to deform, resulting in the inability to clean some positions on the back roller thoroughly.

[0062] Based on the above problems, the present invention proposes a coating equipment 100, aiming to solve the problem that some positions on the back roller 20 cannot be cleaned thoroughly. The following will be described in detail with specific drawings and embodiments.

[0063] Please refer to Figures 1 to 5 , in an embodiment of the present invention, the coating equipment 100 includes a frame 10, a driver (not shown in the figure), 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 drivingly 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. The scraper 31 is configured to scrape off the 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 a partial position of the scraper 31, and the fine-tuning assembly 40 is used to slide along the extension direction of the scraper 31.

[0064] In this embodiment, the frame 10 is used to support and fix the drive, the back roller 20, the blade 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 respectively arranged on opposite sides of the bottom plate 11 and extend above the bottom plate 11. Both ends of the back roller 20 are rotatably connected to the two side plates 12. The blade assembly 30 is installed on at least one side plate 12. A drive for driving the back roller 20 to rotate is installed on the side plate 12. The drive is a structural member for driving the back roller 20 to rotate, and specifically may be a motor, or a structure of a motor cooperating with a gear rack, or a structure cooperating with a belt and a rotating wheel, etc.

[0065] The back roller 20 is a coating roller in the coating device 100. In other words, the back roller 20 is a roller body for supporting and conveying 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.

[0066] The blade assembly 30 is a structure for cleaning impurities on the surface of the back roller 20. By contacting the blade 31 of the blade assembly 30 with the surface of the back roller 20, when the drive drives the back roller 20 to rotate, the impurities on the surface of the back roller 20 can be scraped off by the blade 31.

[0067] The fine-tuning assembly 40 is a structure for adjusting the shape of the blade 31. When the fine-tuning assembly 40 presses on a local position of the blade, the shape of the local position of the blade 31 can be changed. For example, when the local position of the blade 31 warps or bulges, etc., the fine-tuning assembly 40 is slid to the deformed local position of the blade 31, and the fine-tuning assembly 40 presses on the deformed local position of the blade 31 and extrudes the deformed local position to flatten the deformed local position to be consistent with other positions of the blade 31.

[0068] It should be noted that the local position of the blade 31 refers to a certain section or a certain point on the side of the blade 31 away from the back roller 20. And the above-mentioned local position of the back roller 20 refers to 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 blade 31 warps or bulges and other deformations occur, resulting in the non-contact between the local position and the corresponding local position on the surface of the back roller 20, during the rotation of the back roller 20, the deformed local position of the blade 31 cannot scrape off the impurities at the corresponding local position on the surface of the back roller 20. Therefore, it is necessary to use the fine-tuning assembly 40 to flatten the deformed local position so that the pressing degree of each position of the blade 31 in the extending direction is consistent with that of the back roller 20.

[0069] In some embodiments, the coating device 100 may further include structures such as an unwinding device, a winding device, a coating device, a drying device, etc. The coating device includes a coating head and a coating roller corresponding to the substrate sheet to be coated (such as a pole piece). The coating roller may be the back roller 20 of this solution. The unwinding device is used to unwind 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, and the winding device is used to wind the coated substrate sheet.

[0070] In actual application, the blade assembly 30 may be fixedly installed on the frame 10, or may rotate or move relative to the frame 10, as long as the blade 31 can scrape off the impurities on the surface of the back roller 20.

[0071] In actual application, the fine-tuning assembly 40 can be driven to slide along the extension direction of the blade 31 manually or mechanically, so as to slide the fine-tuning assembly 40 to the deformed position of the blade 31. And, the fine-tuning assembly 40 can be provided with one or at least two, which can be specifically determined according to the number of local positions where the blade 31 is deformed.

[0072] In summary, in the technical solution of the embodiment of the present application, in the technical solution of the present invention, the blade 31 is arranged on one side of the back roller 20 and extends along the axial direction of the back roller 20. When the back roller 20 is driven to rotate by the driver, the impurities on the surface of the back roller 20 can be scraped off by the blade 31. Among them, the fine-tuning assembly 40 for sliding along the extension direction of the blade 31 is arranged on the blade assembly 30. Since the blade 31 is relatively long, when a local position of the blade 31 is deformed, the fine-tuning assembly 40 can be slid to the deformed position of the blade 31, so as to press the fine-tuning assembly 40 against the deformed local position of the blade 31, and the deformation of the local position of the blade 31 can be locally adjusted, so that the pressing degree of each position of the blade 31 in the extension direction with respect to the back roller 20 is kept consistent. In this way, when the back roller 20 is driven to rotate by the driver, the impurities on the surface of the back roller 20 can be fully cleaned by the blade 31, thereby effectively solving the problem that the local position of the back roller 20 cannot be cleaned cleanly.

[0073] Please refer to Figure 5 , in an embodiment of the present invention, the fine-tuning assembly 40 includes a fine-tuning mounting block 41, a pressing head 42 and an adjusting member 43; the fine-tuning mounting block 41 is arranged on the blade assembly 30 and is used to slide along the extension direction of the blade 31; one end of the pressing head 42 is hinged to the fine-tuning mounting block 41, and the other end of the pressing head 42 presses against the side of the blade 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 pressing head 42 to move towards or away from the back roller 20 at the end pressing against the blade 31.

[0074] The fine-tuning mounting block 41 is a structure for mounting the fine-tuning component 40 on the blade component 30. Specifically, it can be mounted on the blade component 30 by means of sleeving, inserting, etc. For example, a slide rail is provided on the blade component 30 to sleevethe fine-tuning mounting block 41 on the slide rail of the blade component 30; or, a chute is provided on the blade component 30 to insert at least part of the fine-tuning mounting block 41 into the chute of the blade component 30, so that the fine-tuning component can slide along the extension direction of the blade 31 to slide the fine-tuning component 40 to the deformed position of the blade 31.

[0075] The pressing head 42 is a structure for pressing or releasing a local position of the blade 31. When the pressing head 42 presses the local position of the blade 31, the shape of the local position of the blade 31 can be adjusted. When the pressing head 42 releases the blade 31, there is a gap between the pressing head 42 and the blade 31.

[0076] The adjusting member 43 is a structure for driving the pressing head 42 to move, so as to drive the pressing head 42 to press or release a local position of the blade 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 pressing head 42 to press one end of the blade 31 to move towards or away from the back roller 20.

[0077] With such a design, after sliding the fine-tuning component 40 to the deformed position of the blade 31, operate the adjusting member 43 to apply a thrust to the end of the pressing head 42 pressing on the blade 31 through the adjusting member 43, so that the pressing head 42 rotates and the end of the pressing head 42 pressing on the blade 31 moves towards the back roller 20, and then the deformed local position of the blade 31 can be flattened by the pressing head 42, and the deformed local position of the blade 31 can be adjusted.

[0078] Please refer to Figure 5 , in an embodiment of the present invention, the adjusting member 43 is an adjusting screw, and the adjusting screw is threadedly connected to the fine-tuning mounting block 41.

[0079] In this embodiment, a threaded hole is provided on the fine-tuning mounting block 41, and the adjusting screw is inserted into the threaded hole and is in threaded cooperation with the threaded hole.

[0080] With such a design, the adjusting screw can be directly turned to convert the rotational motion of the adjusting screw into a linear motion, so as to drive the pressing head 42 to press one end of the blade 31 to move towards or away from the back roller 20. This adjustment method is simple to operate and has high adjustment accuracy.

[0081] Please refer to Figure 5, in an embodiment of the present invention, the fine-tuning mounting block 41 includes a first mounting section 411 and a second mounting section 412 arranged at an angle; the first mounting section 411 is provided on the blade assembly 30 and is used to slide along the extension direction of the blade 31, and one end of the pressing head 42 is hinged to the first mounting section 411; the second mounting section 412 is connected to the end of the first mounting section 411 away from the blade assembly 30 and is located on the side of the pressing head 42 away from the blade 31, and the adjusting screw is threadedly connected to the second mounting section 412.

[0082] The first mounting section 411 is a structure for mounting the fine-tuning assembly 40 on the blade assembly 30, and the first mounting section 411 is used for mounting the pressing head 42.

[0083] The second mounting section 412 is a structure for mounting the adjusting screw, so that the adjusting screw can rotate relative to the second mounting section 412 under the action of an external force.

[0084] 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 a thrust to the pressing head 42, the pressing head 42 rotates around the rotating shaft as the rotation axis.

[0085] With such a design, one end of the pressing head 42 can be hinged to the first mounting section 411, and the adjusting screw can be mounted on the second mounting section 412, which is more convenient for installing the pressing head 42 and the adjusting screw.

[0086] In actual application, the first mounting section 411 and the second mounting section 412 can be an integral structure or a split structure.

[0087] Please refer to Figure 5 , in an embodiment of the present invention, the pressing head 42 includes a connecting rod 421 and a pressing rod 422 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 pressing rod 422 is connected to the end of the connecting rod 421 away from the fine-tuning mounting block 41, and the other end of the pressing rod 422 extends toward the blade 31 and presses against the blade 31.

[0088] The connecting rod 421 is a structure for connecting the pressing head 42 to the fine-tuning mounting block 41. The connecting rod 421 is connected to the fine-tuning mounting block 41 through 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.

[0089] The pressing rod 422 is a structure for pressing or releasing a local position of the blade 31. When the pressing rod 422 presses a local position of the blade 31, the shape of the local position of the blade 31 can be adjusted. When the pressing rod 422 releases the blade 31, there is a gap between the pressing head 42 and the blade 31.

[0090] Such a design can make the pressing head 42 formed by the connecting rod 421 and the pressing rod 422 in a seven-shaped structure, which is more convenient for hinging the pressing head 42 on the fine-tuning mounting block 41. At the same time, under the adjustment of the adjusting member 43, the connecting rod 421 is driven to rotate, driving the pressing rod 422 to press tightly on the blade 31, so as to flatten the locally deformed position of the blade 31 through the pressing rod 422, and thus adjust the locally deformed position of the blade 31.

[0091] In practical applications, the connecting rod 421 and the pressing rod 422 can be of an integral structure or a split structure.

[0092] Please refer to Figure 4 、 Figure 5 In an embodiment of the present invention, the coating device 100 further includes a driving assembly 50, and the driving assembly 50 drives the blade assembly 30 to rotate and be arranged on the frame 10.

[0093] In this embodiment, the driving assembly 50 is a structure for driving the blade assembly 30 to rotate, and specifically can be a motor, or a structure of a motor cooperating with a gear and a rack, or a structure cooperating with a belt and a rotating wheel, etc.

[0094] The driving assembly 50 drives the blade assembly 30 to rotate relative to the frame 10, so that the blade 31 on the blade assembly 30 can contact the surface of the back roller 20, or the blade 31 can be away from the surface of the back roller 20.

[0095] With such a design, when it is necessary to clean the impurities on the surface of the back roller 20, the driving assembly 50 is used to drive the blade assembly 30 to rotate until the blade 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 blade 31; when it is not necessary to clean the back roller 20, the driving assembly 50 is used to drive the blade assembly 30 to rotate to a position where the blade 31 is away from the surface of the back roller 20, which can reduce the wear of the blade 31 by the back roller 20 during the coating process; or when it is necessary to remove the impurities on the blade 31, the driving assembly 50 is also used to drive the blade assembly 30 to rotate to a position where the blade 31 is away from the surface of the back roller 20, so as to clean the impurities on the blade 31 thoroughly.

[0096] Please refer to Figure 5 In an embodiment of the present invention, the blade assembly 30 further includes a rotating shaft 32 and a blade mounting structure 33; the driving assembly drives the rotating shaft 32 to rotate and be arranged on the frame 10; the blade mounting structure 33 is arranged on the rotating shaft 32, and the blade 31 is mounted on the blade mounting structure 33; the fine-tuning assembly 40 is arranged on the blade mounting structure 33.

[0097] In some embodiments, shaft holes are provided on both side plates 12 of the frame 10, 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.

[0098] The blade mounting structure 33 is a structure for mounting the blade 31, so that the blade 31 extends along the axial direction of the backing roll 20.

[0099] With such a design, the blade assembly 30 is integrally mounted on the frame 10 through the rotating shaft 32, which can improve the reliability of the blade assembly 30 during rotation. And by mounting the blade 31 and the fine-tuning assembly 40 on the blade mounting structure 33, it is more convenient to install the blade 31 and the fine-tuning assembly 40.

[0100] Please refer to Figure 5 , in an embodiment of the present invention, the blade mounting structure 33 includes an adapter plate 331, a blade mounting plate 332 and a blade pressing plate 333; the adapter plate 331 is provided on the rotating shaft 32; the blade mounting plate 332 is provided on the side of the adapter plate 331 away from the rotating shaft 32; the blade pressing plate 333 is mounted on the blade mounting plate 332, and the blade pressing plate 333 presses the blade 31 onto the blade mounting plate 332; the fine-tuning assembly 40 is provided on the blade pressing plate 333.

[0101] The adapter plate 331 is a structure for fixing the blade mounting plate 332 on the rotating shaft 32 and serves as a transfer function. The specific shape of the adapter plate 331 can be rectangular, circular, triangular, etc., and no specific limitation is made here.

[0102] The blade mounting plate 332 is a structure for mounting the blade 31, and the blade 31 can be carried on the blade mounting plate 332.

[0103] The blade pressing plate 333 is a structure for pressing the blade 31 tightly on the blade mounting plate 332, which can improve the mounting reliability of the blade 31.

[0104] With such a design, when installing the blade 31, first use the adapter plate 331 to connect to the rotating shaft 32, then install the blade mounting plate 332 on the adapter plate 331, then place the blade 31 on the mounting surface of the blade mounting plate 332, and then use the blade pressing plate 333 to press the blade 31 tightly on the blade mounting plate 332 to achieve reliable installation of the blade 31 and reduce the risk of the blade 31 moving or even falling off the blade mounting structure 33 during use.

[0105] In some embodiments, the blade mounting plate 332 can be fixedly installed on the adapter plate 331 by screws, and the blade pressing plate 333 can also be fixedly installed on the blade mounting plate 332 by screws.

[0106] Please refer toFigures 1 to 4 , Figure 6 , in an 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 drivingly connected to the driving member 521, and the driving member 521 drives the connecting block 522 to move towards or away from the blade assembly 30 to drive the blade assembly 30 to rotate.

[0107] The mounting plate 51 is a structure for fixedly mounting the driving assembly 50 on the frame 10. The specific shape of the mounting plate 51 can be in the shape of a straight line, U-shaped, multi-segment bent shape, rectangular, circular, triangular, etc., and no specific limitation is made here.

[0108] The driving structure 52 is a structure for driving the blade 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 blade 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 blade assembly 30.

[0109] With such a design, when the driving member 521 works, it can drive the connecting block 522 to move towards or away from the blade assembly 30, and thus can drive the blade assembly 30 to rotate smoothly through the connecting block 522 to accurately adjust the rotation angle of the blade assembly 30.

[0110] Please refer to Figure 6 , in an embodiment of the present invention, the mounting plate 51 extends along the length direction of the blade 31, 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.

[0111] With such a design, since the length of the blade assembly 30 is relatively long, at least two driving structures 52 are used to drive the blade assembly 30 to rotate simultaneously, which can prevent the phenomenon of deformation during the rotation of the blade assembly 30.

[0112] Please refer to Figure 4 , Figure 7 , in an embodiment of the present invention, the driving assembly 50 drives the blade assembly 30 to rotate so that the blade assembly 30 has a scraping position and a material discharging position; the coating equipment 100 further includes a chip receiving assembly 60, the chip receiving assembly 60 is arranged on the frame 10 and is located on the side of the blade assembly 30 away from the back roller 20; under the condition that the blade assembly 30 is in the scraping position, the blade 31 is configured to scrape off the impurities on the surface of the back roller 20; under the condition that the blade assembly 30 is in the material discharging position, the blade 31 is located above the chip receiving assembly 60, and the chip receiving assembly 60 is configured to receive the impurities falling from the blade 31.

[0113] It should be noted that the scraping position refers to the position where the scraper assembly 30 is in the state of cleaning the impurities on the surface of the back roller 20; the material discharging position refers to the position where the scraper assembly 30 is in the state of cleaning the impurities on the scraper 31.

[0114] With such a design, when it is necessary to clean the 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, under the rotation of the back roller 20, the impurities on the surface of the back roller 20 can be scraped off by the scraper 31; after a certain amount of impurities are scraped off the scraper 31, when it is necessary to remove the impurities on the scraper 31, the scraper assembly 30 can rotate to the material discharging position so that the scraper 31 is located above the chip receiving assembly 60. At this time, the impurities on the scraper 31 will automatically fall onto the chip receiving assembly 60 below under the action of gravity for collection, so as to realize the automatic collection of impurities.

[0115] In some embodiments, the chip receiving assembly 60 is provided with a chip receiving groove 61 so that the impurities on the scraper 31 fall into the chip receiving groove 61 below under the action of gravity for collection.

[0116] In some embodiments, in order to facilitate the 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. After pouring out the impurities in the chip receiving groove 61, the chip receiving assembly 60 is reinstalled on the frame 10.

[0117] Please refer to Figure 5 , in an embodiment of the present invention, the scraper assembly 30 is provided with a guide rail 333a, the guide rail 333a extends along the length direction of the scraper 31, and the fine adjustment assembly 40 is provided with a slider 411a, and the slider 411a is slidably matched with the guide rail 333a.

[0118] With such a design, the position of the fine adjustment assembly 40 can be adjusted more smoothly under the cooperation of the slider 411a and the guide rail 333a, so as to accurately slide the fine adjustment assembly 40 to the local deformed position of the scraper 31 to finely flatten the local deformed position.

[0119] Please refer to Figure 1 , in an embodiment of the present invention, a plurality of fine adjustment assemblies 40 are provided, and the plurality of fine adjustment assemblies 40 are spaced apart along the extension direction of the scraper 31.

[0120] In such a design, since the blade 31 is relatively long, there are multiple positions where the blade 31 is locally deformed. Therefore, by providing multiple fine-tuning components 40, the multiple deformed local positions of the blade 31 can be respectively fine-tuned and flattened by the multiple fine-tuning components 40, so that the pressing degree of each position of the blade 31 in the extending direction is consistent with that of the back roller 20. In this way, when the back roller 20 rotates, the impurities on the surface of the back roller 20 can be fully cleaned by the blade 31, thus effectively solving the problem that the local positions of the back roller 20 cannot be cleaned thoroughly.

[0121] In actual application, the multiple fine-tuning components 40 can be centrally arranged corresponding to the middle part of the blade 31, or can be centrally arranged corresponding to the end part of the blade 31, or fine-tuning components 40 can be provided corresponding to both the middle part and the end part of the blade 31. Specifically, the fine-tuning components 40 can be arranged corresponding to the local positions where the blade 31 is prone to deformation.

[0122] Please refer to Figure 1 , in an embodiment of the present invention, at least one fine-tuning component 40 corresponds to both ends and the middle part of the blade 31.

[0123] In such a design, since the two ends and the middle part of the blade 31 are relatively prone to local deformation, therefore, by providing at least one fine-tuning component 40 corresponding to both ends and the middle part of the blade 31, the deformed local positions of the blade 31 can be fully fine-tuned and flattened.

[0124] Please refer to Figures 1 to 4 , Figure 8 , in an embodiment of the present invention, the coating device 100 further includes a limiting component 70. The limiting component 70 is arranged on the frame 10, and the limiting component 70 presses on the side of the blade 31 away from the back roller 20 and is configured to adjust the gap between the blade 31 and the back roller 20.

[0125] The limiting component 70 is a structure for adjusting the gap between the blade 31 and the back roller 20. Specifically, the limiting component 70 includes, but is not limited to, structures such as a push rod, a pressing block, and a pressing plate.

[0126] In such a design, the gap between the blade 31 and the back roller 20 can be adjusted by the limiting component 70 to control the pressing force of the blade 31 on the back roller 20, so that the cleaning force of the blade 31 on the surface of the back roller 20 can be controlled. In addition, after the blade 31 is worn by the back roller 20, the pressing force on the blade 31 can also be increased by the limiting component 70 to prevent the gap between the blade 31 and the back roller 20 from being too large and affecting the cleaning effect of the blade 31 on the surface of the back roller 20.

[0127] In actual application, the limiting component 70 can adjust the gap between the blade 31 and the back roller 20 by means of manual or mechanical adjustment.

[0128] Please refer to Figure 1 In an embodiment of the present invention, there are two limiting components 70, and the two limiting components 70 are respectively arranged near both ends of the scraper 31.

[0129] With such a design, since the length of the scraper 31 is relatively long, two limiting components 70 are respectively arranged at positions near both ends of the scraper 31. The two limiting components 70 can be used to simultaneously press the scraper 31, 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.

[0130] Please refer to Figure 8 In an embodiment of the present invention, the limiting component 70 includes a mounting block 71, an adjusting screw rod 72, and a limiting block 73; the mounting block 71 is arranged on the frame 10; the adjusting screw rod 72 is threadedly connected to the mounting block 71; the limiting block 73 is threadedly sleeved on the adjusting screw rod 72; under the rotation of the adjusting screw rod 72, the limiting block 73 is driven to move towards or away from the scraper 31 to adjust the gap between the scraper 31 and the back roller 20.

[0131] The mounting block 71 is a structure for fixedly mounting the limiting component 70 on the frame 10, so as to facilitate the installation of the limiting component 70.

[0132] The adjusting screw rod 72 is a structure for driving the limiting block 73 to move. When the adjusting screw rod 72 is screwed under an external force, the adjusting screw rod 72 can rotate relative to the mounting block 71, and then drive the limiting block 73 to move towards or away from the scraper 31.

[0133] The limiting block 73 is a structure for pressing the scraper 31, so as to adjust the gap between the scraper 31 and the back roller 20 when the limiting block 73 moves towards or away from the scraper 31.

[0134] With such a design, when it is necessary to adjust the gap between the scraper 31 and the back roller 20, rotate the adjusting screw rod 72. Under the rotation of the screw rod, the limiting block 73 threadedly engaged therewith moves along the extension direction of the adjusting screw rod 72, so that the limiting block 73 moves towards or away from the scraper 31. When the limiting block 73 moves towards the scraper 31, the limiting 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 limiting block 73 moves away from the scraper 31, the limiting 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, achieving a better cleaning effect on the back roller 20.

[0135] In some embodiments, a handwheel can be arranged at one end of the adjusting screw rod 72, and the user can adjust the gap between the scraper 31 and the back roller 20 by rotating the handwheel. Of course, in other embodiments, a motor can also be arranged to drive the adjusting screw rod 72 to rotate.

[0136] According to some embodiments of the present application, the present application provides a coating device 100. Please refer to Figures 1 to 8 , the 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 drivingly 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. 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 a partial position of the scraper 31, and the fine-tuning assembly 40 is used to slide along the extending 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 material discharging position; the coating device 100 further includes a chip receiving assembly 60. The chip receiving assembly 60 is arranged on the frame 10 and is located on the side of the scraper assembly 30 away from the back roller 20; under the condition that 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; under the condition that the scraper assembly 30 is in the material discharging 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. The limiting assembly 70 presses on 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.

[0137] 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 assembly 50 drives the scraper assembly 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 assembly 70 presses on 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 assembly 40 is slid to the deformed position of the scraper 31, so as to press on the partial deformed position of the scraper 31 through the fine-tuning assembly 40, and the deformation of the partial position of the scraper 31 can be locally adjusted, so that the pressing degree of each position of the scraper 31 in the extending direction is consistent with that of the back roller 20; start the back roller 20, and scrape off the impurities on the surface of the back roller 20 through the scraper 31 to solve the problem that the local position of the back roller 20 cannot be cleaned; when a certain amount of impurities are scraped off the scraper 31, it is necessary to remove the impurities on the scraper 31. The driving assembly 50 drives the scraper assembly 30 to rotate to the material discharging position, so that the scraper 31 is located above the chip receiving assembly 60. At this time, the impurities on the scraper 31 will automatically fall onto the lower chip receiving assembly 60 under the action of gravity for collection, so as to realize the automatic collection of impurities.

[0138] Please refer to Figure 9, the present invention also provides a method for cleaning the back roller of a coating device 100. The specific structure of the coating device 100 refers to the above embodiments. Since this back roller cleaning method adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated here one by one.

[0139] Among them, the back roller cleaning method includes the following steps:

[0140] S20. Control the fine-tuning component 40 to slide along the extension direction of the blade 31 so that the fine-tuning component 40 slides to the locally deformed position of the blade 31;

[0141] S30. Control the fine-tuning component 40 to press the locally deformed position of the blade 31;

[0142] S40. Control the drive to drive the back roller 20 to rotate so that the blade 31 scrapes off the impurities on the surface of the back roller 20.

[0143] With such a design, since the blade 31 is relatively long, when a local position of the blade 31 is deformed, the fine-tuning component 40 can be controlled to slide to the deformed position of the blade 31, so as to control the fine-tuning component 40 to press on the locally deformed position of the blade 31, and the deformation of the local position of the blade 31 can be locally adjusted, so that the pressing degree of each position of the blade 31 in the extension direction with respect to the back roller 20 is kept consistent. In this way, when the drive is controlled to drive the back roller 20 to rotate, the impurities on the surface of the back roller 20 can be fully cleaned by the blade 31, thus effectively solving the problem that the local position of the back roller 20 cannot be cleaned thoroughly.

[0144] Please refer to Figure 10 , in an embodiment of the present invention, the control of the fine-tuning component 40 to press the locally deformed position of the blade 31 includes:

[0145] S31. Control the adjusting member 43 of the fine-tuning component 40 to drive the pressing head 42 to move towards the back roller 20 so that the pressing head 42 presses the locally deformed position of the blade 31.

[0146] With such a design, after the fine-tuning component 40 is controlled to slide to the deformed position of the blade 31, the adjusting member 43 is operated to control the adjusting member 43 to apply a thrust to one end of the pressing head 42 pressing on the blade 31, so that the pressing head 42 rotates and the pressing head 42 presses on the end of the blade 31 towards the back roller 20 to move, and the locally deformed position of the blade 31 can be flattened by the pressing head 42, and the locally deformed position of the blade 31 can be adjusted.

[0147] Please refer to Figure 11 , in an embodiment of the present invention, before the control of the fine-tuning component 40 to slide along the extension direction of the blade 31 so that the fine-tuning component 40 slides to the locally deformed position of the blade 31, it further includes:

[0148] S10. Control the drive assembly 50 to drive the scraper assembly 30 to rotate to the scraping position.

[0149] With such a design, when it is necessary to clean the impurities on the surface of the back roller 20, control the drive assembly 50 to drive 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, control the drive to drive 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.

[0150] Please refer to Figure 11 , in an embodiment of the present invention, after the control drive drives the back roller 20 to rotate and the scraper 31 scrapes off the impurities on the surface of the back roller 20, it further includes:

[0151] S50. Control the drive assembly 50 to drive the scraper assembly 30 to rotate to the discharging position so that the scraper 31 is located above the chip receiving assembly 60, and the chip receiving assembly 60 is configured to receive the impurities falling from the scraper 31.

[0152] With such a design, when a certain amount of impurities are scraped off the scraper 31, it is necessary to remove the impurities on the scraper 31. Control the drive assembly 50 to drive the scraper assembly 30 to rotate to the discharging position so that the scraper 31 is located above the chip receiving assembly 60. At this time, the impurities on the scraper 31 will automatically fall onto the lower chip receiving assembly 60 under the action of gravity for collection, so as to realize the automatic collection of impurities.

[0153] The above are only exemplary embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. All equivalent structural transformations made under the technical concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A coating device, characterized in that, Comprising: Frame; Driver, provided on the frame; Back roller, provided on the frame and drivingly connected to the driver, the driver driving the back roller to rotate; Scraper assembly, provided on the frame and including a scraper, the scraper being located on one side of the back roller and extending along the axial direction of the back roller, the scraper being configured to scrape off impurities on the surface of the back roller; Fine-tuning assembly, provided on the scraper assembly and located on the side of the scraper away from the back roller, the fine-tuning assembly being configured to press a local position of the scraper, and the fine-tuning assembly being used to slide along the extension direction of the scraper; The scraper is in a sheet shape; when a local position of the scraper warps or bulges, the fine-tuning assembly slides to the deformed local position of the scraper, so that the fine-tuning assembly presses on the deformed local position of the scraper and extrudes the deformed local position to flatten the deformed local position to be consistent with other positions of the scraper; A plurality of the fine-tuning assemblies are provided, and the plurality of fine-tuning assemblies are spaced apart along the extension direction of the scraper; at least one of the fine-tuning assemblies corresponds to both ends and the middle of the scraper.

2. The coating device according to claim 1, characterized in that, The fine-tuning assembly includes: Fine-tuning mounting block, provided on the scraper assembly and used to slide along the extension direction of the scraper; Pressing head, one end of the pressing head is hinged to the fine-tuning mounting block, and the other end of the pressing head presses on the side of the scraper away from the back roller; Adjusting member, provided on the fine-tuning mounting block, the adjusting member driving the pressing head to press on one end of the scraper to move towards 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, wherein, The fine-tuning mounting block includes a first mounting section and a second mounting section arranged at an angle; The first mounting section is provided on the scraper assembly and used to slide along the extension direction of the scraper, and one end of the pressing head is hinged to the first mounting section; the second mounting section is connected to the end of the first mounting section away from the scraper assembly and is located on the side of the pressing head away from the scraper, and the adjusting screw is threadedly connected to the second mounting section.

5. The coating device according to claim 2, characterized in that, The pressing head includes a connecting rod and a pressing 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 pressing rod is connected to the end of the connecting rod away from the fine-tuning mounting block, and the other end of the pressing rod extends towards the scraper and presses on the scraper.

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

7. The coating device according to claim 6, characterized in that, The scraper assembly further includes: Rotating shaft, the driving assembly drives the rotating shaft to rotate and be provided on the frame; Scraper mounting structure, provided on the rotating shaft, the scraper is mounted on the scraper mounting structure; the fine-tuning assembly is provided on the scraper mounting structure.

8. The coating device according to claim 7, wherein, The scraper mounting structure includes: Adapter plate, provided on the rotating shaft; Scraper mounting plate, provided on the 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, wherein, 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, 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.

12. The coating device according to claim 11, wherein 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.

13. A method for cleaning a back roller based on the coating equipment according to any one of claims 1 to 12, 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.

14. The back roll cleaning method according to claim 13, 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.

15. The back roll cleaning method according to claim 13, 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.

16. The back roll cleaning method according to claim 13, 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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