Scraping device for coating disc, and coater

Abstract

A scraping device for a coating disc, and a coater. The scraping device comprises: a fixed adapter assembly fixed to a fixing plate parallel to a plate cylinder; a driving mechanism attached to the fixed adapter assembly; a scraper assembly, which comprises a groove-shaped structure for embedding a coating disc, and a front scraper and at least one side scraper, which are configured to scrape materials off the coating disc; and a transmission assembly connected between the driving mechanism and the scraper assembly, wherein the driving mechanism is configured to move the front scraper towards a peripheral side face of the coating disc and move the at least one side scraper towards at least one of two end faces of the coating disc by means of the transmission assembly. The transmission assembly comprises an elastic transmission mechanism, which is connected between the doctor blade assembly and the driving mechanism and is in a compressed state under the action of the driving mechanism. The scraping device can uniformly apply a coating to all parts of the coating disc, thereby improving the stability and uniformity of coating a substrate by means of the coating disc.

Description

A scraping device for a coating disc and a coating machine

[0001] Cross-reference to related applications

[0002] The present disclosure incorporates by reference in its entirety the Chinese Patent Application No. 202410645571.4 entitled "A scraping device for a coating disc and a coating machine" filed on May 23, 2024, which is incorporated by reference in its entirety. TECHNICAL FIELD

[0003] The present application relates to the technical field of scraping, and in particular to a scraping device for a coating disc and a coating machine. BACKGROUND

[0004] In various industrial manufacturing fields such as printing, coating, adhesive manufacturing, etc., a coating device such as a coating machine often uses a coating disc to coat liquid, powder or other materials on the surface of a substrate (e.g., a pole piece in a battery production process) to ensure that the function or process of the industrial product meets certain requirements.

[0005] In some cases, the coating of the substrate can be achieved through an automatic control system, but due to the instability of the coating device, etc., a series of problems often occur, such as the accumulation and condensation of slurry on the surface of the coating disc due to wear of the coating disc or leakage of the slurry, unstable coating effect of the coating disc, poor coating uniformity, etc. Therefore, how to ensure the coating uniformity and stability of the coating disc and improve the coating effect is a technical problem to be solved in the field.

[0006] SUMMARY

[0007] The present application aims to at least solve one of the technical problems existing in the background art. To this end, one object of the present application is to provide a scraping device for a coating disc and a coating machine to improve the problem of unstable coating effect of the coating disc and poor coating uniformity.

[0008] The embodiment of the first aspect of the application provides a scraping device for a coating disc, the coating disc is arranged on a plate roller and has two end faces and a circumferential side surface clamped between the two end faces, and the scraping device comprises: a fixed adapter assembly for being fixed on a fixed plate parallel to the plate roller; a driving mechanism attached to the fixed adapter assembly; a scraper assembly comprising a front scraper and at least one side scraper, the front scraper and the at least one side scraper form a groove-shaped structure for embedding the coating disc to scrape the circumferential side surface and at least one of the two end faces of the coating disc respectively; and a transmission assembly connected between the driving mechanism and the scraper assembly, the driving mechanism is configured to move the front scraper towards the circumferential side surface of the coating disc and move the at least one side scraper towards at least one of the two end faces of the coating disc through the transmission assembly. The transmission assembly comprises: an elastic transmission mechanism connected between the scraper assembly and the driving mechanism and configured to be in a compressed state under the action of the driving mechanism.

[0009] In the technical scheme of the embodiment of the application, the fixed adapter assembly is fixed on the fixed plate, and the transmission assembly connects the scraper assembly and the driving mechanism attached to the fixed adapter assembly, which helps to realize the stability of the fixation of the overall mechanism of the scraping device, avoids the shaking or displacement of the entire device in the case of scraping the coating disc by the scraper assembly, and thus promotes the stability and uniformity of the coating disc coating slurry. In addition, the arrangement of the driving mechanism and the transmission assembly can make the front scraper and the side scraper move towards the circumferential side surface and the end face of the coating disc respectively, so as to respectively contact the circumferential side surface and at least one end face of the coating disc for scraping, and facilitate the compensation of the wear of the front and side scrapers. Such design can make the coating uniformly coated on each part of the coating disc, improving the coating uniformity and stability.

[0010] In addition, during long-term use of the scraping device, the wear of the front scraper and the side scraper will gradually increase, resulting in changes in the scraping effect. In the above-embodied implementation, the elastic transmission mechanism in the compressed state can adjust the position of the scraper assembly according to the change in the wear of the scraper, so that the front scraper and the side scraper always maintain appropriate scraping angles and positions, thereby achieving flexible compensation for the wear of the scraper or the coating disc, which is conducive to maintaining the stability and consistency of the scraping effect and further improves the stability and reliability of the coating process. Since the elastic transmission mechanism is arranged between the scraper assembly and the driving mechanism and can be in a compressed state under the action of the driving mechanism, when the front scraper / side scraper starts to work, the front scraper / side scraper abuts against the peripheral side / end surface of the coating disc, and the elastic transmission mechanism connected between the scraper assembly and the driving mechanism remains in a compressed state. However, in the case of wear of the front scraper / side scraper, for example, a gap will be generated between the front scraper / side scraper and the peripheral side / end surface of the coating disc, at which time the front scraper / side scraper is biased toward the peripheral side / end surface of the coating disc under the action of the elastic transmission mechanism, so as to maintain abutment against the peripheral side / end surface of the coating disc, thereby achieving flexible compensation for the wear of the scraper or the coating disc.

[0011] In some embodiments, the elastic transmission mechanism includes at least one front elastic transmission member connected with the front scraper and at least one side elastic transmission member connected with the at least one side scraper, and the transmission assembly further includes a push block having a first end connected with the driving mechanism and a second end opposite to the first end and connected with the at least one front elastic transmission member and the at least one side elastic transmission member. In the above-embodied implementation, the driving mechanism and the elastic transmission members connected with the front and side scrapers, respectively, are connected through the push block, which realizes pushing of the front scraper and the side scraper by one driving mechanism, realizes linkage movement of the front and side scrapers, makes the scraping action synchronous, avoids the situation of slurry leakage and uneven scraping of the front and side scrapers, and improves the stability of the scraping effect. In addition, the front and side elastic transmission members can perform flexible compensation for the wear of the scraper or the coating disc according to the wear of the scraper, which is helpful to improve the stability of the scraping effect.

[0012] In some embodiments, the elastic transmission mechanism is configured to bias or move towards the peripheral side of the coating disc, and the elastic transmission mechanism comprises at least one side elastic transmission member, and the transmission assembly further comprises a turning mechanism connected between the at least one side elastic transmission member and the at least one side scraper and configured to convert the bias or movement from the at least one side elastic transmission member towards the peripheral side of the coating disc into movement towards at least one of the two end faces of the coating disc. In the above-mentioned embodiments, the turning mechanism is configured to convert the bias or movement from the side elastic transmission member towards the peripheral side of the coating disc into movement towards the end face of the coating disc, so that the normal scraper can be simultaneously pushed to move towards the peripheral side of the coating disc and the side scraper can be simultaneously pushed to move towards the end face of the coating disc under the action of one driving mechanism, which helps to improve the working efficiency of coating and reduce the manufacturing cost of the entire device.

[0013] In some embodiments, the at least one side scraper comprises a first side scraper and a second side scraper, the at least one side elastic transmission member comprises a first side elastic transmission member and a second side elastic transmission member, and the turning mechanism comprises a first bevelled push block and a second bevelled push block connected with the first side elastic transmission member and the second side elastic transmission member respectively, and the first bevelled push block and the second bevelled push block are respectively provided with a first bevel and a second bevel opposite to each other at the end opposite to the first side elastic transmission member and the second side elastic transmission member; and a first side scraper holder and a second side scraper holder for fixing the first side scraper and the second side scraper respectively, and the first side scraper holder and the second side scraper holder are respectively provided with a third bevel and a fourth bevel opposite to the first bevel and the second bevel at the end opposite to the first side scraper and the second side scraper. In the above-mentioned embodiments, the turning mechanism is configured to convert the bias or movement from the side elastic transmission member towards the peripheral side of the coating disc into movement towards the end face of the coating disc through the first bevel and the third bevel opposite to each other and the second bevel and the fourth bevel opposite to each other, so that the normal scraper can be simultaneously pushed to move towards the peripheral side of the coating disc and the side scraper can be simultaneously pushed to move towards the end face of the coating disc under the action of one driving mechanism, which helps to improve the working efficiency of coating and reduce the manufacturing cost of the entire device. The arrangement of the bevels makes the device more compact and reduces the floor space of the device.

[0014] In some embodiments, the turning mechanism further comprises a holder return spring connected between the first side scraper holder and the second side scraper holder, and the holder return spring is configured to be in a compressed state under the action of the first bevel pushing block and the second bevel pushing block. In the above implementation, the holder return spring in the compressed state under the action of the first bevel pushing block and the second bevel pushing block can help the side scraper holder (and the corresponding side scraper) to be kept in a proper position, so as to achieve flexible adjustment of the side scraper, which is conducive to keeping the stability and consistency of the scraping effect. For example, in the case where the side scraper needs to be returned to keep a proper relative position with the coating disc (i.e., the side scraper is too close to the coating disc, and the side scraper needs to be moved away from the end face of the coating disc), the driving mechanism can be returned first, the elastic transmission mechanism is correspondingly returned, then the action force of the first bevel pushing block and the second bevel pushing block on the first side scraper holder and the second side scraper holder is reduced, at this time, the elastic force of the holder return spring in the compressed state can make the first side scraper holder and the second side scraper holder move away from each other, so as to make the first side scraper and the second side scraper move away from each other, i.e., away from the two end faces of the coating disc, thereby achieving flexible adjustment of the side scraper.

[0015] In some embodiments, the scraping device further comprises a housing for accommodating the transmission assembly, a first guide structure is arranged on the inner wall of the housing opposite to the first side scraper holder and the second side scraper holder, and a second guide structure matched with the first guide structure is arranged on the first side scraper holder and the second side scraper holder, to guide the movement of the first side scraper holder and the second side scraper holder towards the two end faces of the coating disc. In the above implementation, the guide structure in the housing and the matched structure on the scraper holder help to accurately guide the movement direction of the side scraper holder, improve the guiding performance, and limit the relative position of the side scraper on the side scraper holder and the end face of the coating disc, so as to further improve the consistency and uniformity of the coating disc in coating the paste.

[0016] In some embodiments, the scraping device further comprises a housing for accommodating the transmission assembly, a positive scraper guide groove is arranged on the housing, and the positive scraper is inserted into the positive scraper guide groove to be connected with the transmission assembly. The arrangement of the positive scraper guide groove improves the connection stability and reliability of the positive scraper and the transmission assembly, which helps to avoid connection problems such as loosening or falling off of the positive scraper during the coating of the paste on the coating disc. In addition, the positive scraper guide groove can accurately guide the movement direction of the positive scraper, enhance the guiding performance, and make the scraping effect of the positive scraper on the circumferential side of the coating disc more uniform.

[0017] In some embodiments, a material discharge through hole is arranged on the lower side of the housing near the positive doctor blade guide groove, and the material discharge device further comprises a first material blocking plate arranged below the positive doctor blade guide groove of the housing and a second material blocking plate arranged below the material discharge through hole of the housing. In the above-mentioned implementation, the arrangement of the material discharge through hole and the double material blocking plates can effectively control the flow of excess slurry or material discharge, thereby avoiding slurry overflow and slurry stagnation in the transmission assembly, and helping to achieve stable circulation of the slurry. In addition, the first material blocking plate below the positive doctor blade guide groove helps to block and / or stop the slurry scraped down by the positive doctor blade, so as to prevent the slurry from entering the inside of the doctor blade assembly through the positive doctor blade guide groove, thereby helping to ensure the uniformity and consistency of the coating.

[0018] In some embodiments, the material discharge device further comprises an angle adjusting mechanism, the driving mechanism is attached to the fixed adapter assembly through the angle adjusting mechanism, and the angle adjusting mechanism is configured to adjust the angle between the driving mechanism and the fixed adapter assembly. The angle adjusting mechanism can enable the relative angle of the driving structure with respect to the fixed adapter assembly to be adjusted, and by adjusting the angle of the driving structure, the material discharge device can adapt to slurry coating work of different types and different shapes of coating discs, improving the adaptability and flexibility of the entire material discharge device. In addition, the angle adjusting mechanism makes it easier and faster to adjust the angle of the doctor blade, and the operator can adjust the coating angle at any time as needed, improving the convenience and efficiency of the operation.

[0019] In some embodiments, the angle adjusting mechanism comprises an angle adjusting body attached to the fixed adapter assembly and comprising a first side, a second side opposite to the first side, a first guide groove extending from the first side towards the second side, and a second guide groove arranged at the second side, the driving mechanism is inserted into the first guide groove and connected with the second guide groove through a bolt. In the above-mentioned implementation, the angle adjusting mechanism through the design of the guide groove and the bolt helps to achieve accurate adjustment of the angle between the driving mechanism and the fixed adapter assembly, promoting the material discharge effect and coating quality of the material discharge device. In addition, the guide groove and bolt connection mode can provide stable connection, avoiding loosening or falling off during the angle adjustment of the driving mechanism, enhancing the stability of the device.

[0020] In some embodiments, the fixed adapter assembly comprises a fixed adapter for being fixed on the fixed plate, and an adjusting member rotatably connected with the fixed adapter at an end of the adjusting member, and the adjusting member is connected with the angle adjusting mechanism for adjusting the position of the angle adjusting mechanism. In the above-mentioned implementation, the fixed connection of the fixed adapter helps to further realize the stability of the fixation of the overall mechanism of the doctoring device. In addition, the rotatable connection of the adjusting member with the fixed adapter enables the adjusting member to rotate the angle adjusting mechanism and the driving mechanism (and further, the transmission assembly and the doctor blade assembly connected with the driving mechanism) around the end of the adjusting member, so that the operator can adjust the distance between the doctoring device and the plate roll and / or the coating disc at any time, thereby facilitating the maintenance of the doctoring device to avoid contamination or damage to the paste coating effect of the coating disc.

[0021] In some embodiments, the positive doctor blade is stacked on the at least one side doctor blade. In the above-mentioned implementation, the stacking of the positive doctor blade on the at least one side doctor blade can prevent the paste from leaking from the gap between the positive and side doctor blades during the doctoring operation, thereby further helping to realize the stable circulation of the paste.

[0022] Embodiments of the first aspect of the present application provide a coating machine, comprising: a plate roll; at least one coating disc arranged on the plate roll; a fixed plate arranged in parallel with the plate roll; and at least one doctoring device of any one of the above-mentioned embodiments fixed on the fixed plate. The coating machine of the present embodiment can provide the advantages as described above with respect to the doctoring device, and for the sake of brevity, will not be described again.

[0023] In some embodiments, the fixed plate is configured to be movable relative to the plate roll along the extension direction of the plate roll. In the above-mentioned implementation, through the arrangement of the movable fixed plate, the position of the doctoring device fixed on the fixed plate can be adaptively adjusted according to the different positions of the coating disc on the plate roll, thereby helping to improve the flexibility and convenience of the operation of the coating machine.

[0024] The above description is only a summary of the technical solutions of the present application. In order to enable the technical means of the present application to be more clearly understood, and to be implemented in accordance with the content of the description, and in order to enable the above and other purposes, features and advantages of the present application to be more apparent and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0025] In the drawings, identical or similar components or elements are denoted by identical reference numerals throughout the several views, unless otherwise specified. The drawings are not necessarily to scale. It is to be understood that the drawings only depict some embodiments in accordance with the present disclosure and should not be considered as limiting the scope of the present application.

[0026] Fig. 1 is an exploded view of a doctoring device according to some embodiments of the present application;

[0027] Fig. 2 is a perspective view of the doctoring device of Fig. 1 ;

[0028] Fig. 3 is a perspective view of the doctoring device of Fig. 1 with a guide cover removed;

[0029] Fig. 4 is a side view of the doctoring device of Fig. 3;

[0030] Fig. 5 is a top view of the doctoring device of Fig. 3;

[0031] Fig. 6 is a front view of the doctoring device of Fig. 3;

[0032] Fig. 7 is a perspective view of a coater comprising the doctoring device of Fig. 1.

[0033] BRIEF DESCRIPTION OF DRAWINGS Doctoring device 100; Doctor blade assembly 1021, transmission assembly 1093; Positive doctor blade 101, at least one positive resilient transmission member 103, positive doctor blade push tongue 118, foam block 119, positive doctor blade guide slot 120; At least one side doctor blade 102, first side doctor blade 1022, second side doctor blade 1023, resilient transmission mechanism 1043, at least one side resilient transmission member 104, first side resilient transmission member 1041, second side resilient transmission member 1042, first side doctor blade holder 1051, second side doctor blade holder 1052; Push block 106, steering mechanism 1097, first beveled push block 1071, second beveled push block 1072; Holder retraction resilient member 108, second guide structure 109, housing 111, guide cover 110; First material blocking plate 113, second material blocking plate 114; Angle adjustment body 115, first guide slot 1151, second guide slot 1152, fixed adapter assembly 1160, fixed adapter member 1161, adjustment member 1162, adjustment member set screw 1163, hinge shaft 1164, fixed adapter member set screw 1165; Drive mechanism 117, adapter 1171; Stencil roller 200, coating pan 210, peripheral side surface 211, end surface 212, fixed plate 300, coater 7000. DETAILED DESCRIPTION

[0034] 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 more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application; the use of the terms "including," "comprising," or "having" and variations thereof herein is intended to be broad and encompass the terms "consisting of" and "consisting essentially of" and variations thereof. Unless otherwise noted, the terms "including" and "comprising" are open-ended and do not exclude the presence of unrecited elements or limitations.

[0036] 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 "a plurality of" is two or more, unless otherwise explicitly and specifically limited.

[0037] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative embodiments to each other. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0038] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.

[0039] In the description of the embodiments of the present application, the term "a plurality of" refers to two or more (including two), and similarly, "a plurality of groups" refers to two or more groups (including two groups), and "a plurality of pieces" refers to two or more pieces (including two pieces).

[0040] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as limiting the embodiments of the present application. The orientation or position of the device or element indicated, and therefore cannot be understood as limiting the embodiments of the present application.

[0041] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "mounting", "connecting", "connecting", "fixing" and other terms should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0042] At present, in various industrial manufacturing fields such as battery manufacturing, in order to provide a protective coating for the surface of a workpiece (to prevent it from being eroded and damaged by the external environment) or to improve the performance of the surface of the workpiece, or to give the workpiece special functions and properties, a coating device such as a coating machine is often used to coat liquid, powder or other materials on the surface of a substrate (such as a pole piece in the battery production process) to ensure that the function or process of the industrial product meets these requirements.

[0043] In related art, the coating of the coated substrate can be achieved through an automatic control system, but due to the instability of the coating device and other reasons, it often leads to a series of problems such as accumulation and condensation of slurry on the surface of the coated disc, unstable coating effect of the coated disc, poor coating uniformity, etc. For example, due to the instability of the scraping mechanism, such as shaking, unstable friction occurs between the scraper and the high-speed rotating coated disc, which requires frequent adjustment of the scraping mechanism, resulting in reduced service life of the equipment and low efficiency. For another example, due to the wear of the coated disc, the amount of use (wear) of the scraper at each place is inconsistent, which requires frequent operation to replace the scraper, cannot meet the normal use period of the scraper, and increases the production cost.

[0044] Based on the above technical problems found, a scraping device for a coated disc and a coating machine are provided, which are fixed on a fixed plate through a fixed adapter assembly, and a transmission assembly connects the scraper assembly and a driving mechanism attached to the fixed adapter assembly, which helps to realize the stability of the fixed mechanism of the whole scraping device, avoids the shaking or displacement of the whole device in the case of scraping operation of the coated disc, and thus promotes the stability and uniformity of the slurry coating of the coated disc. In addition, the driving mechanism and the transmission assembly can make the front scraper and the side scraper move towards the peripheral side surface and the end surface of the coated disc, respectively, so as to respectively contact the peripheral side surface and at least one end surface of the coated disc for scraping, and facilitate the compensation of the wear of the front and side scrapers. Such design can ensure that the coating is uniformly coated on each part of the coated disc, and improves the coating uniformity and stability.

[0045] The coating device disclosed in the embodiments of the present application can be used in various processes requiring coating operation on a substrate, for example, in the process of coating slurry on the battery pole piece in the battery production process. In addition, the coating operation can be performed using the coating machine disclosed in the embodiments of the present application.

[0046] FIG. 1 is an exploded view of the coating device according to some embodiments of the present application; FIG. 2 is a perspective view of the coating device of FIG. 1; FIG. 3 is a perspective view of the coating device of FIG. 1 without a guide cover plate; FIG. 4 is a side view of the coating device of FIG. 3; FIG. 5 is a top view of the coating device of FIG. 3; and FIG. 6 is a front view of the coating device of FIG. 3.

[0047] As shown in FIGS. 1 to 6, the coating device 100 for coating a disc 210 (as shown in FIG. 7) is provided according to some embodiments of the present application, the disc 210 is arranged on a plate roller 200 (as shown in FIG. 7) and has two end faces 212 and a circumferential side 211 sandwiched between the two end faces, and the coating device 100 comprises: a fixed adapter assembly 1160 for being fixed on a fixed plate 300 (as shown in FIG. 7) parallel to the plate roller 200; a driving mechanism 117 attached to the fixed adapter assembly 1160; a doctor blade assembly 1021 comprising a front doctor blade 101 and at least one side doctor blade 102, the front doctor blade 101 and the at least one side doctor blade 102 form a groove-shaped structure for embedding the disc to be coated, respectively, for coating the circumferential side 211 and at least one of the two end faces 212 of the disc 210; and a transmission assembly 1093 connected between the driving mechanism 117 and the doctor blade assembly 1021, the driving mechanism 117 is configured to move the front doctor blade 101 towards the circumferential side 211 of the disc and move the at least one side doctor blade 102 towards at least one of the two end faces 212 of the disc 210 through the transmission assembly 1093.

[0048] It should be noted herein that the connection and attachment mentioned herein can be direct connection or indirect connection through an intermediate part. For example, the disc can be directly sleeved on the plate roller, or the disc can be connected with a sleeve sleeved on the plate roller.

[0049] As shown in FIGS. 1 to 4, the fixed adapter assembly 1160 can be integrally formed with or glued to the fixed plate 300 in other suitable ways, or the fixed adapter assembly can be connected with the fixed plate 300 through a fixed adapter screw 1165. In addition, as shown in FIG. 1, the driving mechanism 117 can be connected with the transmission assembly through bolts.

[0050] In some examples, the shape of the disc can be, for example, cylindrical, or can be set to other shapes as needed.

[0051] The driving mechanism 117 can be a pneumatic cylinder or a hydraulic cylinder, etc. as shown in FIGS. 1-6, and an adapter 1171 can be provided as a medium flow outlet and inlet channel of the driving mechanism 117.

[0052] The front doctor blade 101 and the at least one side doctor blade 102 form a groove-like structure for embedding the coating disc. In the case of one front doctor blade and two side doctor blades arranged at both ends of the front doctor blade, the groove-like structure can be, for example, a "U"-shaped groove-like structure, or in the case of one front doctor blade and one side doctor blade arranged at one end of the front doctor blade, the groove-like structure can also be, for example, an "L"-shaped groove-like structure.

[0053] By fixing the adapter assembly on the fixed plate and connecting the doctor blade assembly and the driving mechanism attached to the fixed adapter assembly through the transmission assembly, the stability of the overall mechanism of the doctoring device is improved, and the doctor blade assembly is prevented from shaking or shifting during the doctoring operation on the coating disc, thereby promoting the stability and uniformity of the coating disc coating slurry. In addition, the driving mechanism and the transmission assembly can be arranged to move the front doctor blade and the side doctor blade towards the peripheral side surface and the end surface of the coating disc, respectively, so as to contact the peripheral side surface and the at least one end surface of the coating disc for doctoring, and to compensate for the wear of the front and side doctor blades. Such a design can ensure that the coating is uniformly applied to each part of the coating disc, improving the uniformity and stability of the coating.

[0054] According to some embodiments of the present application, the transmission assembly 1093 includes an elastic transmission mechanism 1043 connected between the doctor blade assembly 1093 and the driving mechanism 117 and configured to be in a compressed state under the action of the driving mechanism 117.

[0055] As shown in FIG. 1, the elastic transmission mechanism can be a spring, and the springs can be positioned by being sleeved on bolts or other components.

[0056] During long-term use of the doctoring device, the wear of the front doctor blade and the side doctor blade will gradually increase, resulting in changes in the doctoring effect. In the above-mentioned embodiments, the elastic transmission mechanism in the compressed state can adjust the position of the doctor blade assembly according to the change in the wear of the doctor blade, so that the front doctor blade and the side doctor blade always maintain appropriate doctoring angles and positions, thereby achieving flexible compensation for the wear of the doctor blade or the coating disc, which is beneficial to maintaining the stability and consistency of the doctoring effect and further improves the stability and reliability of the coating process.

[0057] According to some embodiments of the present application, the elastic transmission mechanism 1043 comprises at least one positive elastic transmission member 103 connected with the positive doctor blade 101 and at least one side elastic transmission member 104 connected with the at least one side doctor blade 102, and the transmission assembly 1093 further comprises a push block 106 having a first end and a second end opposite to the first end, the first end being connected with the driving mechanism 117 and the second end being connected with the at least one positive elastic transmission member 103 and the at least one side elastic transmission member 104.

[0058] In the example shown in FIG. 1, the number of the at least one positive elastic transmission member 103 is two (which may, for example, be arranged side by side), and the number of the at least one side elastic transmission member 104 is also two (which may, for example, be arranged side by side). It can be understood that the number of the at least one positive elastic transmission member 103 and the at least one side elastic transmission member 104 can not be limited.

[0059] In some examples, the elastic modulus of the at least one positive elastic transmission member 103 and the at least one side elastic transmission member 104 can be different, because the positive doctor blade 101 and the at least one side doctor blade 102 perform doctoring operations on different surfaces of the coating pan, and thus the wear amount of the positive doctor blade 101 and the at least one side doctor blade 102 is generally different, and therefore elastic transmission members capable of providing different degrees of doctor blade flexibility compensation are required. It can be understood herein that the arrangement of the at least one positive elastic transmission member 103 and the at least one side elastic transmission member 104 can be consistent, for example, as shown in FIG. 1, the axial directions of the positive elastic transmission member 103 and the side elastic transmission member 104 can be parallel.

[0060] In some examples, the push block 106 can be in the form of a double-claw push block, and the push block 106 can be connected with the at least one positive elastic transmission member 103 and the at least one side elastic transmission member 104 by bolting, for example, as shown in FIG. 1, the push block 106 can be connected by bolts sleeved on the elastic transmission members, so that the second end of the push block 106 can directly contact the positive elastic transmission member 103 and the side elastic transmission member 104.

[0061] The push block 106 can also be directly connected with the positive elastic transmission member and the side elastic transmission member by welding or the like. In addition, it can be understood that the connection of the push block 106 with the driving mechanism 117 can be by bolting, as shown in FIGS. 1 and 3.

[0062] In the above-mentioned embodiments, the driving mechanism and the elastic transmission members respectively connected with the positive and side scrapers are connected through the push block, so that one driving mechanism can simultaneously push the positive and side scrapers, linkage movement of the positive and side scrapers is realized, the scraping action is synchronous, the situation of missing slurry and uneven scraping of the positive and side scrapers is avoided, and the stability of the scraping effect is improved. In addition, the positive and side elastic transmission members can flexibly compensate the wear of the scrapers or the wear of the coating disc according to the wear condition of the scrapers, which helps to improve the stability of the scraping effect.

[0063] According to some embodiments of the present application, the elastic transmission mechanism 1043 is configured to bias or move towards the peripheral side surface 211 of the coating disc 210, the elastic transmission mechanism 1043 includes at least one side elastic transmission member 104, and the transmission assembly 1093 further includes a turning mechanism 1097 connected between the at least one side elastic transmission member 104 and the at least one side scraper 102 and configured to convert the biasing movement of the at least one side elastic transmission member 104 towards the peripheral side surface of the coating disc into movement towards at least one of the two end surfaces of the coating disc.

[0064] That is, the turning mechanism can receive the biasing or movement of the elastic transmission mechanism towards the peripheral side surface of the coating disc and convert the received biasing or movement of the elastic transmission mechanism towards the peripheral side surface of the coating disc into movement towards the end surface of the coating disc. In this context, the movement of the elastic transmission mechanism refers to the overall movement of the elastic transmission mechanism (for example, the movement of the positive elastic transmission member refers to the overall movement of the positive elastic transmission member), and the biasing of the elastic transmission mechanism refers to the movement of one end of the elastic transmission mechanism due to the elastic force of the elastic member (for example, the biasing of the positive elastic transmission member refers to the movement of the end of the positive elastic transmission member connected with the positive scraper due to the wear of the positive scraper). In some examples, the turning mechanism can achieve the conversion of the movement direction of the side elastic transmission member by setting a gear device mounted on different shafts. In other examples, the turning mechanism can also achieve the conversion of the movement direction of the side elastic transmission member by a slider mechanism, i.e. the movement of the side elastic transmission member towards the peripheral side surface of the coating disc pushes the slider to move along a certain axis, and the movement of the slider drives other components to move towards the end surface of the coating disc.

[0065] In the above-mentioned embodiments, the turning mechanism is configured to convert the movement of the side elastic transmission member towards the peripheral side surface of the coating disc into movement towards the end surface of the coating disc, so that the positive scraper can be pushed to move towards the peripheral side surface of the coating disc and the side scraper can be pushed to move towards the end surface of the coating disc under the action of one driving mechanism, which helps to improve the working efficiency of coating and reduce the manufacturing cost of the entire device.

[0066] According to some embodiments of the present application, the at least one side scraper 102 includes a first side scraper 1022 and a second side scraper 1023, the at least one side elastic transmission member 104 includes a first side elastic transmission member 1041 and a second side elastic transmission member 1042, and the turning mechanism includes: a first beveled push block 1071 and a second beveled push block 1072, the first beveled push block and the second beveled push block are connected with the first side elastic transmission member 1041 and the second side elastic transmission member 1042 respectively, and the first beveled push block 1071 and the second beveled push block 1072 are respectively provided with a first beveled surface and a second beveled surface opposite to each other at the end opposite to the first side elastic transmission member 1041 and the second side elastic transmission member 1042; and a first side scraper holder 1051 and a second side scraper holder 1052 for fixing the first side scraper 1022 and the second side scraper 1023 respectively, and the first side scraper holder 1051 and the second side scraper holder 1052 are respectively provided with a third beveled surface and a fourth beveled surface at the end opposite to the first side scraper and the second side scraper, which are fitted with the first beveled surface and the second beveled surface.

[0067] The first side scraper holder 1051 and the second side scraper holder 1052 can be fixed with the corresponding side scraper by means of gluing or bolt connection.

[0068] In some examples, the first side elastic transmission member 1041 and the second side elastic transmission member 1042 can be in direct contact with the first beveled push block 1071 and the second beveled push block 1072, and remain in a certain degree of compression state under the action of the first beveled push block 1071, the second beveled push block 1072 and the push block 106.

[0069] As shown in FIG. 3, under the action of the driving mechanism 117 on the push block 106, the push block 106 can compress the first side elastic transmission member 1041 and the second side elastic transmission member 1042, and the first side elastic transmission member 1041 and the second side elastic transmission member 1042 can push the first beveled push block 1071 and the second beveled push block 1072 by elastic force, so that the first beveled surface and the second beveled surface of the first beveled push block 1071 and the second beveled push block 1072 can extrude (fit with) the third beveled surface and the fourth beveled surface, thereby enabling the first side scraper holder 1051 and the second side scraper holder 1052 to move along the direction of the beveled surface fitting (i.e., the direction opposite to each other, or the direction towards the end face of the coating disc).

[0070] As shown in FIG. 6, in some examples, the end shape of the first side scraper holder 1051 and the second side scraper holder 1052 can be concave to respectively surround or half-surround the first side scraper 1022 and the second side scraper 1023. In addition, a certain amount of play can be reserved between the first side scraper holder 1051 and the second side scraper holder 1052 and the corresponding side scraper.

[0071] In the above-mentioned embodiments, the turning mechanism realizes the conversion of the bias or movement from the side elastic transmission towards the peripheral side surface of the coating disc to the movement towards the end surface of the coating disc through the first and third inclined surfaces adhering to each other and the second and fourth inclined surfaces adhering to each other, and further realizes the simultaneous pushing of the positive doctor blade towards the peripheral side surface of the coating disc and the side doctor blade towards the end surface of the coating disc under the action of one driving mechanism, which helps to improve the working efficiency of coating and reduce the manufacturing cost of the entire device. The arrangement of the above-mentioned inclined surfaces makes the device more compact and reduces the floor space occupied by the device.

[0072] According to some embodiments of the present application, the turning mechanism 1097 further comprises a holder retreat elastic member 108 connected between the first side doctor blade holder 1051 and the second side doctor blade holder 1052, and the holder retreat elastic member 108 is configured to be in a compressed state under the action of the first beveled push block 1071 and the second beveled push block 1072.

[0073] As shown in FIG. 1, the holder retreat elastic member 108 can be one or more springs, and the elastic modulus of the holder retreat elastic member 108 can be slightly smaller than the elastic modulus of the at least one positive elastic transmission member 103 and the at least one side elastic transmission member 104. In some examples, the holder retreat elastic member 108 can be arranged such that the axial direction of the holder retreat elastic member 108 is perpendicular to the axial direction of the at least one side elastic transmission member 104.

[0074] In the example shown in FIG. 1, in the case where the first beveled push block 1071 and the second beveled push block 1072 have a tendency to retract along the retreat direction of the driving mechanism 117 when the driving mechanism 117 retreats, the holder retreat elastic member 108 can appropriately release the elastic potential energy in its compressed state, thereby driving the first side doctor blade holder 1051 and the second side doctor blade holder 1052 to move along the axial direction of the holder retreat elastic member 108.

[0075] In the above-mentioned embodiments, the holder retreat elastic member in a compressed state under the action of the first beveled push block and the second beveled push block can help the side doctor blade holder (and the corresponding side doctor blade) to remain in a suitable position, thereby realizing the flexible adjustment of the side doctor blade and facilitating the stability and consistency of the doctoring effect.

[0076] According to some embodiments of the present application, the scraping device 100 further comprises a housing 111 for accommodating the transmission assembly 1093, a first guide structure is arranged on the inner wall of the housing 111 opposite to the first side scraper holder 1051 and the second side scraper holder 1052, and a second guide structure 109 is arranged on the first side scraper holder 1051 and the second side scraper holder 1052 to cooperate with the first guide structure to guide the movement of the first side scraper holder 1051 and the second side scraper holder 1052 towards the two end faces of the coating disc (i.e. the moving direction of the side scrapers).

[0077] As shown in FIG. 2, the housing 111 can comprise a guide cover plate 110.

[0078] In some examples, the first guide structure (not shown in the figure) can be a groove structure extending into the guide cover plate 110 of the housing 111, and the second guide structure 109 can be a corresponding protrusion structure on the first side scraper holder 1051 and the second side scraper holder 1052. It can be understood that the corresponding protrusion structure on the first side scraper holder 1051 and the second side scraper holder 1052 can be consistent in size with the corresponding groove structure of the guide cover plate 110, or the size of the corresponding protrusion structure is slightly smaller than the corresponding groove structure, i.e. the corresponding protrusion structure on the first side scraper holder 1051 and the second side scraper holder 1052 can be inserted into the corresponding groove structure of the guide cover plate 110 and slide to achieve the guiding function.

[0079] As shown in FIG. 1, FIG. 3 and FIG. 4, the second guide structure 109 on the first side scraper holder 1051 and the second side scraper holder 1052 can also be a guide bearing with appropriate size. It can be understood that the number of the second guide structure 109 can be one or more, and in the case of multiple second guide structures 109, each second guide structure 109 in each group of second guide structures 109 can be arranged along the moving direction of the side scrapers towards the end face of the coating disc.

[0080] In the above-mentioned embodiments, through the guide structure in the housing and the cooperating structure on the scraper holder, the moving direction of the side scraper holder is accurately guided, the guiding performance is improved, the relative position between the side scraper on the side scraper holder and the end face of the coating disc is limited, and the consistency and uniformity of the coating disc coating slurry can be further improved.

[0081] According to some embodiments of the present application, the scraping device 100 further comprises a housing 111 for accommodating the transmission assembly 1093, a first guide structure is arranged on the inner wall of the housing 111 opposite to the first side scraper holder 1051 and the second side scraper holder 1052, and a second guide structure 109 is arranged on the first side scraper holder 1051 and the second side scraper holder 1052 to cooperate with the first guide structure to guide the movement of the first side scraper holder 1051 and the second side scraper holder 1052 towards the two end faces of the coating disc (i.e. the moving direction of the side scrapers).

[0082] As shown in FIG. 1, the shell 111 can form the positive doctor blade guide groove 120 by being hollowed at a specific part.

[0083] In some examples, the doctoring device 100 can further include a foam block 119 and a positive doctor blade pusher 118 located in the positive doctor blade guide groove 120. The positive doctor blade pusher 118 can be in direct contact with the positive doctor blade 101 to push the positive doctor blade 101 to move towards the side surface of the coating pan. The foam block 119 can be made of polyester fiber, polyurethane, cross-linked polyethylene or other suitable materials, and can be used to block the positive doctor blade 101 from bringing the slurry into the inside of the transmission assembly through the positive doctor blade guide groove 120.

[0084] The arrangement of the positive doctor blade guide groove improves the stability and reliability of the connection between the positive doctor blade and the transmission assembly, and helps to avoid connection problems such as loosening or falling off of the positive doctor blade during the process of coating the slurry on the coating pan. In addition, the positive doctor blade guide groove can accurately guide the movement direction of the positive doctor blade, enhance the guiding performance, and make the doctoring effect of the positive doctor blade on the side surface of the coating pan more uniform.

[0085] According to some embodiments of the present application, a drain hole (not shown) is arranged on the lower side of the shell 110 near the positive doctor blade guide groove 120, and the doctoring device 100 further includes a first material blocking plate 113 arranged below the positive doctor blade guide groove 120 of the shell, and a second material blocking plate 114 arranged below the drain hole of the shell 111.

[0086] In some examples, the first material blocking plate 113 and the second material blocking plate 114 can be, for example, sheet metal or the like.

[0087] In addition, as shown in FIGS. 1 to 3, the first material blocking plate 113 and the second material blocking plate 114 can be concave. In some examples, the width of the first material blocking plate 113 and the second material blocking plate 114 can be consistent with the width of the shell 111 (as shown in FIG. 6), or the width of the first material blocking plate 113 and the second material blocking plate 114 can be slightly larger than the width of the shell 111.

[0088] In the above embodiments, the arrangement of the drain hole and the double material blocking plates can effectively control the flow of excess slurry or doctoring, thereby avoiding slurry overflow and slurry retention in the transmission assembly, and helping to achieve stable circulation of the slurry. In addition, the first material blocking plate below the positive doctor blade guide groove is beneficial to block and / or stop the slurry scraped by the positive doctor blade, so as to prevent the slurry from entering the inside of the doctor blade assembly through the positive doctor blade guide groove, thereby helping to ensure the uniformity and consistency of the coating.

[0089] According to some embodiments of the present application, the scraping device 100 further comprises an angle adjusting mechanism, the driving mechanism 117 is attached to the fixed adapter assembly through the angle adjusting mechanism, and the angle adjusting mechanism is configured to adjust the angle between the driving mechanism 117 and the fixed adapter assembly.

[0090] The angle adjusting mechanism may, for example, be a screw mechanism connected between two components whose angle is to be changed, which changes the included angle between the two components by rotating the screw thread. Alternatively, the angle adjusting mechanism can also adopt other mechanisms capable of adjusting the angle of the two components.

[0091] The angle adjusting mechanism can enable the relative angle of the driving structure with respect to the fixed adapter assembly to be adjusted, and by adjusting the angle of the driving structure, it helps the scraping device to adapt to the slurry coating work of different types and different shapes of coating pans, improving the adaptability and flexibility of the entire scraping device. In addition, the angle adjusting mechanism makes it easier and faster to adjust the angle of the scraper, and the operator can adjust the coating angle at any time as needed, improving the convenience and efficiency of operation.

[0092] According to some embodiments of the present application, as shown in FIGS. 2 and 3, the angle adjusting mechanism comprises an angle adjusting body 115 attached to the fixed adapter assembly, and comprising a first side, a second side opposite to the first side, a first guide slot 1151 extending from the first side towards the second side, and a second guide slot 1152 provided at the second side, the driving mechanism 117 is inserted into the first guide slot 1151, and is connected with the second guide slot 1152 through a bolt.

[0093] As shown in FIGS. 2 and 3, the specific shape of the angle adjusting body 115 can not be limited, for example, the shape of the angle adjusting body 115 can be curved to a certain extent according to the range of angle to be adjusted, it should be understood here that the degree of curvature of the angle adjusting body 115 can not interfere with the fixed adapter assembly and / or the fixed plate. In some examples, the angle adjusting body 115 can be connected to the fixed adapter assembly by a bolt.

[0094] In some examples, the length of the first guide slot 1151 can vary on the angle adjusting body 115 according to the range of angle to be adjusted, and the width of the first guide slot 1151 can be slightly larger than the shell width of the driving mechanism 117. The number of second guide slots 1152 can also be two, two second guide slots 1152 can be respectively arranged at the first side and the second side, and their positions on the first side and the second side are exactly the same.

[0095] In the examples shown in FIGS. 1 to 3, the driving mechanism 117 is inserted into the first guide slot 1151 and can move within the angle range defined by the first guide slot 1151.

[0096] In the above embodiments, the angle adjustment mechanism, through the design of the guide groove and the bolt, helps to achieve accurate adjustment of the angle between the driving mechanism and the fixed adapter assembly, and promotes the scraping effect of the scraping device and the coating quality. In addition, the guide groove and the bolt connection mode can provide stable connection, avoid loosening or falling during the angle adjustment process of the driving mechanism, and enhance the stability of the device.

[0097] According to some embodiments of the present application, the fixed adapter assembly 1160 comprises a fixed adapter 1161 for being fixed on the fixed plate 300, and an adjustment member 1162, which is rotatably connected with the fixed adapter 1161 at the end of the adjustment member 1162, and the adjustment member 1162 is connected with the angle adjustment mechanism for adjusting the position of the angle adjustment mechanism.

[0098] In some examples, the attachment of the angle adjustment mechanism to the fixed adapter assembly can be achieved by the angle adjustment body 115 being bolted to the adjustment member 1162. The fixed adapter 1161 can be fixed on the fixed plate 300 by the fixed adapter set screw 1165.

[0099] As shown in FIG. 3, the adjustment member 1162 can be rotatably connected with the fixed adapter 1161 through the hinge shaft 1164. In addition, the fixed adapter assembly can further comprise an adjustment member set screw 1163, which can fix the adjustment member 1162 on the fixed adapter 1161. By unscrewing the adjustment member set screw 1163, the adjustment member 1162 can rotate the connected angle adjustment mechanism and other mechanisms around the hinge shaft 1164.

[0100] In the above embodiments, through the fixed connection of the fixed adapter, the stability of the overall mechanism of the scraping device is further achieved. In addition, through the rotatable connection of the adjustment member and the fixed adapter, the adjustment member can rotate the angle adjustment mechanism, the driving mechanism (and further, the transmission assembly and the doctor blade assembly connected with the driving mechanism) around the end of the adjustment member, so that the operator can adjust the distance between the scraping device and the plate roller and / or the coating disc at any time, thereby facilitating the maintenance of the scraping device to avoid contamination or damage to the coating effect of the coating disc.

[0101] According to some embodiments of the present application, the front doctor blade 101 is stacked on the at least one side doctor blade 102.

[0102] As shown in FIG. 6, in the case where the front doctor blade 101 is stacked on the at least one side doctor blade 102, the gap width between the front doctor blade and the at least one side doctor blade 102 can be very small, for example, the gap width between the front doctor blade and the at least one side doctor blade 102 can be equal to or close to 0 millimeters (mm).

[0103] In the above embodiments, the positive doctor blade is stacked on the at least one side doctor blade, which can prevent the slurry from leaking from the gap between the positive and side doctor blades during the doctoring operation, thereby further facilitating the stable circulation of the slurry.

[0104] The embodiments of the present application provide a coating machine, as shown in FIG. 7, the coating machine 7000 comprises a plate roller 200, at least one coating disc 210 arranged on the plate roller 200, a fixed plate 300 arranged in parallel with the plate roller 200, and at least one doctoring device 100 of any one of the above embodiments fixed on the fixed plate 300.

[0105] A plurality of coating discs can be arranged along the axial direction of the plate roller, and in some examples, the shape of the coating disc can be cylindrical.

[0106] In addition, the specific structure of the doctoring device 100 refers to the above embodiments. The coating machine proposed herein includes all the schemes of all the embodiments of the above doctoring device.

[0107] Therefore, such a coating machine can provide the advantages as described above with respect to the doctoring device, which will not be repeated for the sake of brevity.

[0108] According to some embodiments of the present application, the fixed plate 300 is configured to be movable relative to the plate roller 200 along the extension direction of the plate roller.

[0109] The implementation manner of the fixed plate to move relative to the plate roller along the extension direction of the plate roller is not specifically limited, for example, the movement can be achieved by connecting a pulley at the lower end of the fixed plate and sliding through the pulley and guide rail, or a plurality of recesses can be arranged on the support below the fixed plate, and correspondingly at least one protrusion is arranged on the fixed plate, by inserting the at least one protrusion on the fixed plate into different recesses on the support to change the position of the fixed plate relative to the plate roller.

[0110] In the above embodiments, by arranging the movable fixed plate, the position of the doctoring device fixed on the fixed plate can be adaptively adjusted according to the different positions of the coating disc on the plate roller, thereby facilitating the flexibility and convenience of the coating operation of the coating machine.

[0111] A kind of scraping device for coating disc, coating disc is arranged on version roller, and it has two end faces and the circumferential side surface being sandwiched between two end faces, and scraping device includes: fixed adapter component, for being fixed on the fixed plate parallel with version roller;Driving mechanism, driving mechanism is attached to fixed adapter component;Scraper component, scraper component includes positive scraper 101 and at least one side scraper, positive scraper and at least one side scraper form the slot structure for embedding coating disc, to be used for scraping the circumferential side surface and at least one of two end faces of coating disc respectively;And transmission component, transmission component is connected between driving mechanism and scraper component, driving mechanism is configured to move positive scraper 101 towards the circumferential side surface of coating disc and at least one side scraper moves towards at least one of two end faces of coating disc by transmission component.

[0112] Transmission component includes: elastic transmission mechanism, elastic transmission mechanism is connected between scraper component and driving mechanism, and is configured to be in compression state under the action of driving mechanism.Elastic transmission mechanism includes at least one positive elastic transmission part connected with positive scraper and at least one side elastic transmission part connected with at least one side scraper, and transmission component further includes: push block, push block has first end and second end opposite to first end, first end is connected with driving mechanism, and second end is connected with at least one positive elastic transmission part and at least one side elastic transmission part.

[0113] And transmission component further includes: turning mechanism, turning mechanism is connected between at least one side elastic transmission part and at least one side scraper, and is configured to convert the bias or movement towards the circumferential side surface of coating disc from at least one side elastic transmission part into the movement towards at least one of two end faces of coating disc.And turning mechanism includes: first bevelled push block and second bevelled push block, first bevelled push block and second bevelled push block are connected with first side elastic transmission part and second side elastic transmission part respectively, and first bevelled push block and second bevelled push block are provided with first inclined surface and second inclined surface opposite to each other at the end opposite to first side elastic transmission part and second side elastic transmission part respectively;And first side scraper holder and second side scraper holder, for fixing first side scraper and second side scraper respectively, and first side scraper holder and second side scraper holder are provided with third inclined surface and fourth inclined surface respectively at the end opposite to first side scraper and second side scraper, which are fitted with first inclined surface and second inclined surface respectively.

[0114] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than limit them. Although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the technical solutions recorded in the foregoing embodiments can be modified, or some or all of the technical features can be replaced equivalently. Such modifications or replacements do not change the essence of the corresponding technical solutions, which should be covered in the scope of the claims and the specification of the present application. In particular, the technical features mentioned in each embodiment can be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A doctoring device for coating discs, the coating discs being arranged on a plate roller and having two end faces and a peripheral side face sandwiched between the two end faces, and the doctoring device comprising: a fixed adapter assembly for being fixed on a fixed plate parallel to the plate roller; a driving mechanism, the driving mechanism being attached to the fixed adapter assembly; a doctor blade assembly, the doctor blade assembly comprising a front doctor blade and at least one side doctor blade, the front doctor blade and the at least one side doctor blade forming a slot-like structure for embedding the coating discs for doctoring the peripheral side face and at least one of the two end faces of the coating discs, respectively; and a transmission assembly connected between the driving mechanism and the doctor blade assembly, the driving mechanism being configured to move the front doctor blade towards the peripheral side face of the coating discs and the at least one side doctor blade towards at least one of the two end faces of the coating discs by the transmission assembly, the transmission assembly comprising: a resilient transmission mechanism connected between the doctor blade assembly and the driving mechanism and configured to be in a compressed state under the action of the driving mechanism.

2. The device of claim 1, wherein, the resilient transmission mechanism comprising at least one front resilient transmission member connected with the front doctor blade and at least one side resilient transmission member connected with the at least one side doctor blade, and the transmission assembly further comprising: a push block having a first end connected with the driving mechanism and a second end opposite to the first end connected with the at least one front resilient transmission member and the at least one side resilient transmission member.

3. The device of claim 1 or 2, wherein, the resilient transmission mechanism being configured to be biased or moved towards the peripheral side face of the coating discs, the resilient transmission mechanism comprising at least one side resilient transmission member, the transmission assembly further comprising: a turning mechanism connected between the at least one side resilient transmission member and the at least one side doctor blade and configured to convert the bias or movement from the at least one side resilient transmission member towards the peripheral side face of the coating discs into movement towards at least one of the two end faces of the coating discs.

4. The device of claim 3, wherein, the at least one side doctor blade comprising a first side doctor blade and a second side doctor blade, the at least one side resilient transmission member comprising a first side resilient transmission member and a second side resilient transmission member, and the turning mechanism comprising: a first beveled push block and a second beveled push block, the first beveled push block and the second beveled push block being connected with the first side resilient transmission member and the second side resilient transmission member, respectively, and the first beveled push block and the second beveled push block being provided with a first bevel and a second bevel, respectively, opposite to each other at an end opposite to the first side resilient transmission member and the second side resilient transmission member, respectively; and a first side doctor blade holder and a second side doctor blade holder for fixing the first side doctor blade and the second side doctor blade, respectively, and the first side doctor blade holder and the second side doctor blade holder being provided with a third bevel and a fourth bevel, respectively, opposite to the first bevel and the second bevel, respectively, at an end opposite to the first side doctor blade and the second side doctor blade, respectively.

5. The device of claim 4, wherein, The turning mechanism further comprises a holder return elastic member connected between the first side doctor blade holder and the second side doctor blade holder, and the holder return elastic member is configured to be in a compressed state under the action of the first bevel pushing block and the second bevel pushing block.

6. A device as claimed in claim 4 or 5, wherein, The doctoring device further comprises a housing for accommodating the transmission assembly, a first guide structure is arranged on an inner wall of the housing opposite to the first side doctor blade holder and the second side doctor blade holder, and a second guide structure is arranged on the first side doctor blade holder and the second side doctor blade holder to cooperate with the first guide structure to guide the first side doctor blade holder and the second side doctor blade holder to move towards the two end faces of the pan.

7. The device of any one of claims 1 to 6, wherein, The doctoring device further comprises a housing for accommodating the transmission assembly, a first guide structure is arranged on an inner wall of the housing opposite to the first side doctor blade holder and the second side doctor blade holder, and a second guide structure is arranged on the first side doctor blade holder and the second side doctor blade holder to cooperate with the first guide structure to guide the first side doctor blade holder and the second side doctor blade holder to move towards the two end faces of the pan.

8. The device of claim 7, wherein, A material discharge through hole is arranged on the lower side of the housing near the positive doctor blade guide slot, and the doctoring device further comprises: a first material blocking plate arranged below the positive doctor blade guide slot of the housing; and a second material blocking plate arranged below the material discharge through hole of the housing.

9. The device of any one of claims 1 to 8, wherein, The doctoring device further comprises an angle adjusting mechanism, the driving mechanism is attached to the fixed adapter assembly through the angle adjusting mechanism, and the angle adjusting mechanism is configured to adjust the angle between the driving mechanism and the fixed adapter assembly.

10. The device of claim 9, wherein, The angle adjusting mechanism comprises: an angle adjusting body attached to the fixed adapter assembly and comprising a first side, a second side opposite to the first side, a first guide slot extending from the first side towards the second side, and a second guide slot arranged at the second side, the driving mechanism is inserted into the first guide slot and connected with the second guide slot through a bolt.

11. The device of claim 9 or 10, wherein, The fixed adapter assembly comprises: a fixed adapter for being fixed on the fixed plate; and an adjusting member rotatably connected with the fixed adapter at the end of the adjusting member, and the adjusting member is connected with the angle adjusting mechanism for adjusting the position of the angle adjusting mechanism.

12. The device of any one of claims 1 to 11, wherein, The positive doctor blade is stacked on the at least one side doctor blade.

13. A coating machine comprising: a plate roller; at least one pan arranged on the plate roller; a fixed plate arranged in parallel with the plate roller; and at least one doctoring device according to any one of claims 1 to 12 fixed on the fixed plate. The fixed plate is configured to be movable relative to the plate roller along the extension direction of the plate roller.

14. The coater of claim 13, wherein, ​

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