CN118218182A - Scraper and coater for coating pans - Google Patents

Abstract

The present application provides a scraper device and a coating machine for a coating plate. The scraper device includes: a fixed adapter assembly for fixing on a fixed plate parallel to the plate roller; a driving mechanism attached to the fixed adapter assembly; a scraper assembly, the scraper assembly includes a front scraper and at least one side scraper forming a groove structure for embedding the coating plate for scraping the coating plate; and a transmission assembly connected between the driving mechanism and the scraper assembly, the driving mechanism is configured to move the front scraper toward the peripheral side surface of the coating plate and move at least one side scraper toward at least one of the two end surfaces of the coating plate through the transmission assembly. The transmission assembly includes an elastic transmission mechanism connected between the scraper assembly and the driving mechanism and in a compressed state under the action of the driving mechanism. The scraper device of the embodiment of the present application can make the paint evenly coated on various parts of the coating plate, thereby improving the stability and uniformity of the coating substrate of the coating plate.

Description

Scraper and coater for coating pans

Technical Field

The present application relates to the technical field of scraping materials, and in particular to a scraping device and a coating machine for a coating pan.

Background technique

In various industrial manufacturing fields such as printing, coating, and adhesive manufacturing, coating equipment such as coaters are often required to use coating pans to coat liquids, powders, or other materials on the surface of substrates (such as pole pieces in the battery production process) to ensure that the functions or processes of industrial products meet certain requirements.

In the prior art, the coating of the substrate can be achieved through an automated control system, but due to the instability of the coating device and other reasons, a series of problems often occur, such as the accumulation and condensation of the slurry on the surface of the coating pan, the unstable coating effect of the coating pan, and the poor coating uniformity due to the wear of the coating pan or the leakage of the slurry. Therefore, how to ensure the coating uniformity and stability of the coating pan and improve the coating effect is a technical problem that needs to be solved urgently in this field.

Summary of the invention

The present application aims to solve at least one of the technical problems in the background technology. To this end, one purpose of the present application is to provide a scraper device and a coating machine for a coating pan to improve the problem of unstable coating effect and poor coating uniformity of the coating pan.

The embodiment of the first aspect of the present application provides a scraper device for a coating plate, wherein the coating plate is arranged on a plate roller and has two end faces and a peripheral side face sandwiched between the two end faces, and the scraper device comprises: a fixed adapter assembly, which is used to be fixed on a fixed plate parallel to the plate roller; a driving mechanism, which is attached to the fixed adapter assembly; a scraper assembly, which comprises a positive scraper and at least one side scraper, wherein the positive scraper and the at least one side scraper form a groove-shaped structure for embedding the coating plate, so as to scrape the peripheral side face of the coating plate and at least one of the two end faces respectively; and a transmission assembly, which is connected between the driving mechanism and the scraper assembly, and the driving mechanism is configured to move the positive scraper toward the peripheral side face of the coating plate and move the at least one side scraper toward at least one of the two end faces of the coating plate through the transmission assembly. The transmission assembly comprises: an elastic transmission mechanism, which is connected between the scraper assembly and the driving mechanism, and is configured to be in a compressed state under the action of the driving mechanism.

In the technical solution of the embodiment of the present 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 achieve the fixed stability of the overall mechanism of the scraper device, and avoids the entire device from shaking or shifting when the scraper assembly is scraping the coating disc, thereby promoting the stability and uniformity of the coating slurry on the coating disc. In addition, the arrangement of the driving mechanism and the transmission assembly can make the front scraper and the side scraper move toward the circumferential side and end face of the coating disc respectively, so as to contact the circumferential side and at least one end face of the coating disc for scraping, and is conducive to compensating for the wear of the front and side scrapers. Such a design can make the paint evenly coated on various parts of the coating disc, improving the coating uniformity and stability.

In addition, during the long-term use of the scraper device, the wear of the front scraper and the side scraper will gradually increase, resulting in changes in the scraping effect. In the above embodiment, the elastic transmission mechanism in a compressed state can adjust the position of the scraper assembly according to the change in the scraper wear, so that the front scraper and the side scraper always maintain an appropriate scraping angle and position, thereby achieving flexible compensation for the scraper or coating plate wear, which is beneficial 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 drive mechanism, and can be in a compressed state under the action of the drive 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 plate, and the elastic transmission mechanism connected between the scraper assembly and the drive mechanism remains in a compressed state. However, for example, when the front scraper/side scraper is worn, a gap will be generated between the front scraper/side scraper and the circumferential side/end surface of the coating disc. At this time, the front scraper/side scraper will be biased toward the circumferential side/end surface of the coating disc under the action of the rebound force of the elastic transmission mechanism, so as to maintain abutment with the circumferential side/end surface of the coating disc, thereby achieving flexible compensation for the wear of the scraper or coating disc.

In some embodiments, the elastic transmission mechanism includes at least one positive elastic transmission member connected to the front scraper and at least one side elastic transmission member connected to the at least one side scraper, and the transmission assembly also includes: a push block, the push block having a first end and a second end opposite to the first end, the first end being connected to the driving mechanism, and the second end being connected to the at least one positive elastic transmission member and the at least one side elastic transmission member. In the above embodiment, by connecting the driving mechanism and the elastic transmission members respectively connected to the front and side scrapers through the push block, a driving mechanism is implemented to simultaneously push the front scraper and the side scraper, realizing the linkage movement of the front and side scrapers, so that the scraping actions are synchronized, avoiding the leakage of slurry from the front and side scrapers and uneven scraping, and improving the stability of the scraping effect. In addition, the positive elastic transmission member and the side elastic transmission member can flexibly compensate for the wear of the scraper or the coating plate according to the wear of the scraper, which helps to improve the stability of the scraping effect.

In some embodiments, the elastic transmission mechanism is constructed to be able to bias or move toward the peripheral side surface of the coating pan, the elastic transmission mechanism includes at least one side elastic transmission member, and the transmission assembly also includes: a steering mechanism, the steering mechanism is connected between the at least one side elastic transmission member and the at least one side scraper, and is configured to convert the bias or movement from the at least one side elastic transmission member toward the peripheral side surface of the coating pan into a movement toward at least one of the two end surfaces of the coating pan. In the above embodiment, the setting of the steering mechanism can convert the biased movement from the side elastic transmission member toward the peripheral side surface of the coating pan into a movement toward the end surface of the coating pan, so that under the action of one driving mechanism, the front scraper can be pushed toward the peripheral side surface of the coating pan and the side scraper can be pushed toward the end surface of the coating pan at the same time, which helps to improve the working efficiency of coating and reduce the manufacturing cost of the entire device.

In some embodiments, the at least one side scraper includes a first side scraper and a second side scraper, the at least one side elastic transmission member includes a first side elastic transmission member and a second side elastic transmission member, and the steering mechanism includes: a first bevel push block and a second bevel push block, the first bevel push block and the second bevel push block are respectively connected to the first side elastic transmission member and the second side elastic transmission member, and the first bevel push block and the second bevel push block are respectively provided with a first bevel and a second bevel opposite to each other at the ends 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, which are respectively used to fix the first side scraper and the second side scraper, and the first side scraper holder and the second side scraper holder are respectively provided with a third bevel that fits with the first bevel and a fourth bevel that fits with the second bevel at the ends opposite to the first side scraper and the second side scraper. In the above embodiment, through the first and third inclined planes that fit each other, and the second and fourth inclined planes that fit each other, the steering mechanism realizes the conversion of the polarization or movement of the side elastic transmission member toward the peripheral side surface of the coating pan into movement toward the end surface of the coating pan, thereby realizing that under the action of a driving mechanism, the front scraper can be pushed toward the peripheral side surface of the coating pan, and the side scraper can be pushed toward the end surface of the coating pan at the same time, which helps to improve the working efficiency of coating and reduce the manufacturing cost of the entire device. The above-mentioned inclined plane arrangement makes the layout of the device more compact and reduces the space occupied by the device.

In some embodiments, the steering mechanism further includes a retainer retraction elastic member connected between the first side scraper retainer and the second side scraper retainer, and the retainer retraction elastic member is configured to be in a compressed state under the action of the first bevel push block and the second bevel push block. In the above embodiment, the retainer retraction elastic member in a compressed state under the action of the first bevel push block and the second bevel push block can help the side scraper retainer (and the corresponding side scraper) to remain in a suitable position, thereby achieving flexible adjustment of the side scraper, which is conducive to maintaining the stability and consistency of the scraping effect. For example, when it is necessary to retract the side scraper to maintain a suitable relative position with the coating plate (that is, the side scraper is too close to the coating plate and the side scraper needs to be moved away from the end surface of the coating plate), the driving mechanism can be retracted first, and the elastic transmission mechanism can be retracted accordingly. Then, the force of the first bevel push block and the second bevel push block on the first side scraper holder and the second side scraper holder is reduced. At this time, the rebound force of the holder retraction elastic member in a compressed state can make the first side scraper holder and the second side scraper holder move away from each other, thereby driving the first side scraper and the second side scraper away from each other, that is, away from the two end surfaces of the coating plate, thereby realizing flexible adjustment of the side scrapers.

In some embodiments, the scraper device further includes a housing for accommodating the transmission assembly, a first guide structure is provided 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 provided on the first side scraper holder and the second side scraper holder to guide the first side scraper holder and the second side scraper holder to move toward the two end surfaces of the coating pan. In the above embodiment, the guiding structure in the housing and the matching structure on the scraper holder help to promote accurate guidance of the movement direction of the side scraper holder, improve the guiding performance, limit the relative position of the side scraper on the side scraper holder and the end surface of the coating pan, thereby further improving the consistency and uniformity of the coating slurry on the coating pan.

In some embodiments, the scraper device further includes a housing for accommodating the transmission assembly, a positive scraper guide groove is provided on the housing, and the positive scraper is inserted into the positive scraper guide groove to be connected to the transmission assembly. The provision of the positive scraper guide groove improves the connection stability and reliability between the positive scraper and the transmission assembly, and helps to avoid connection problems such as loosening or falling off of the positive scraper during the coating process of the coating plate. In addition, the positive scraper guide groove can accurately guide the movement direction of the positive scraper, enhance the guiding performance, and enable the positive scraper to have a more uniform scraping effect on the peripheral side of the coating plate.

In some embodiments, a discharge hole is provided on the lower side of the shell near the positive scraper guide groove, and the scraper device further includes: a first baffle plate, provided below the positive scraper guide groove of the shell; and a second baffle plate, provided below the discharge hole of the shell. In the above embodiment, the provision of the discharge hole and the double baffle plates can effectively control the flow of excess slurry or scraping material, thereby avoiding slurry overflow and slurry retention in the transmission assembly, which helps to achieve stable circulation of the slurry. In addition, the first baffle plate below the positive scraper guide groove is conducive to shielding and/or intercepting the slurry scraped by the positive scraper to prevent the slurry from entering the interior of the scraper assembly through the positive scraper guide groove, thereby helping to ensure the uniformity and consistency of the coating.

In some embodiments, the scraper device further includes an angle adjustment mechanism, through which the drive mechanism is attached to the fixed adapter assembly, and the angle adjustment mechanism is configured to adjust the angle between the drive mechanism and the fixed adapter assembly. The angle adjustment mechanism allows the relative angle of the drive structure to be adjusted relative to the fixed adapter assembly, and by adjusting the angle of the drive structure, the scraper device can adapt to the slurry coating work of coating pans of different types and shapes, thereby improving the adaptability and flexibility of the entire scraper device. In addition, the angle adjustment mechanism makes it easier and quicker to adjust the scraper angle, and the operator can adjust the coating angle at any time as needed, thereby improving the convenience of operation and work efficiency.

In some embodiments, the angle adjustment mechanism includes: an angle adjustment body, the angle adjustment body is attached to the fixed adapter assembly, and includes a first side, a second side opposite to the first side, a first guide groove extending from the first side toward the second side, and a second guide groove arranged at the second side, the driving mechanism is inserted in the first guide groove, and connected to the second guide groove by a bolt. In the above embodiment, the angle adjustment mechanism helps to achieve precise adjustment of the angle between the driving mechanism and the fixed adapter assembly through the design of the guide groove and the bolt, thereby promoting the scraping effect and coating quality of the scraper device. In addition, the guide groove and bolt connection method can provide a stable connection, avoid loosening or falling off during the angle adjustment process of the driving mechanism, and enhance the stability of the device.

In some embodiments, the fixed adapter assembly includes: a fixed adapter for fixing on the fixed plate; and an adjusting member, the adjusting member is rotatably connected to the fixed adapter at the end of the adjusting member, and the adjusting member is connected to the angle adjustment mechanism for adjusting the position of the angle adjustment mechanism. In the above embodiment, the fixed connection of the fixed adapter helps to further achieve the stability of the fixed structure of the scraper device. In addition, through the rotatable connection between the adjusting member and the fixed adapter, the adjusting member can make the angle adjustment mechanism and the drive mechanism (and further, the transmission assembly and scraper assembly connected to the drive mechanism) rotate around the end of the adjusting member, so that the operator can adjust the distance between the scraper device and the plate roller and/or the coating plate at any time, thereby facilitating the maintenance of the scraper device to avoid contaminating or damaging the slurry coating effect of the coating plate.

In some embodiments, the front scraper is stacked on the at least one side scraper. In the above embodiment, the front scraper is stacked on the at least one side scraper to prevent the slurry from leaking from the gap between the front and side scrapers during the scraping operation, thereby further facilitating the stable circulation of the slurry.

The embodiment of the first aspect of the present application provides a coating machine, comprising: a plate roller; at least one coating disc, the at least one coating disc being arranged on the plate roller; a fixed plate, the fixed plate being arranged parallel to the plate roller; and at least one scraper device as described in any one of the above embodiments fixed on the fixed plate. The coating machine of this embodiment can provide the advantages described above with respect to the scraper device, which will not be described in detail for the sake of brevity.

In some embodiments, the fixed plate is configured to be movable relative to the plate roller along the extension direction of the plate roller. In the above embodiment, by providing a movable fixed plate, the scraper device fixed on the fixed plate can be adaptively adjusted according to the different positions of the coating disc on the plate roller, thereby helping to improve the flexibility and convenience of the coating machine operation.

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

BRIEF DESCRIPTION OF THE DRAWINGS

In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in the present application and should not be regarded as limiting the scope of the present application.

FIG1 is an exploded view of a scraping device according to some embodiments of the present application;

FIG2 is a perspective view of the scraping device of FIG1 ;

FIG3 is a three-dimensional view of the scraper device of FIG1 without the guide cover plate;

FIG4 is a side view of the scraper device of FIG3 ;

FIG5 is a top view of the scraper device of FIG3 ;

FIG6 is a front view of the scraper device of FIG3 ;

FIG. 7 is a perspective view of a coating machine including the scraper device of FIG. 1 .

Description of reference numerals:

Scraping device 100;

Scraper assembly 1021, transmission assembly 1093;

A positive scraper 101, at least one positive elastic transmission member 103, a positive scraper push tongue 118, a foam stopper 119, and a positive scraper guide groove 120;

At least one side scraper 102, a first side scraper 1022, a second side scraper 1023, an elastic transmission mechanism 1043, at least one side elastic transmission member 104, a first side elastic transmission member 1041, a second side elastic transmission member 1042, a first side scraper holder 1051, and a second side scraper holder 1052;

Push block 106, steering mechanism 1097, first bevel push block 1071, second bevel push block 1072;

The retaining frame retracts the elastic member 108, the second guide structure 109,

Shell 111, guide cover plate 110;

A first material blocking plate 113, a second material blocking plate 114;

Angle adjustment body 115, first guide groove 1151, second guide groove 1152,

Fixed adapter assembly 1160, fixed adapter 1161, adjustment member 1162, adjustment member set screw 1163, hinge shaft 1164, fixed adapter set screw 1165;

Driving mechanism 117, adapter 1171;

Plate roller 200, coating plate 210, peripheral side surface 211, end surface 212, fixing plate 300, coating machine 7000.

Detailed ways

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

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

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

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

In the description of the embodiments of the present application, the term "and/or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and/or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character "/" in this article generally indicates that the associated objects before and after are in an "or" relationship.

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

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

In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. 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 the specific circumstances.

At present, in various industrial manufacturing fields such as battery manufacturing, in order to provide a protective coating on the surface of the workpiece (to prevent it from being eroded and damaged by the external environment) or to improve the performance of the workpiece surface, or to give the workpiece special functions and properties, coating equipment such as coaters are often required to coat liquids, powders or other materials on the surface of the substrate (such as the pole piece in the battery production process) to ensure that the function or process of the industrial product meets these requirements.

In the related, the coating of the coating disc substrate can be achieved through an automated control system, but due to the instability of the coating device and other reasons, it often leads to a series of problems such as the accumulation and condensation of the slurry on the surface of the coating disc, unstable coating effect of the coating disc, and poor coating uniformity. For example, due to unstable factors such as shaking of the scraper mechanism, unstable friction occurs between the scraper and the high-speed rotating coating disc, and the scraper mechanism needs to be frequently debugged, resulting in a reduced service life of the equipment and low efficiency. For another example, due to the wear of the coating disc, the amount of scraper used (wear) at each location is inconsistent, which requires frequent operation to replace the scraper, and the normal use cycle of the scraper cannot be met, which increases the production cost.

Based on the above technical problems found, a scraper device and a coating machine for a coating pan are provided, which are fixed on a fixed plate by a fixed adapter assembly, and a transmission assembly connects the scraper assembly and the driving mechanism attached to the fixed adapter assembly, which helps to achieve the fixed stability of the overall mechanism of the scraper device, and avoids the entire device from shaking or shifting when the scraper assembly is scraping the coating pan, thereby promoting the stability and uniformity of the coating slurry on the coating pan. In addition, the arrangement of the driving mechanism and the transmission assembly can make the front scraper and the side scraper move toward the circumferential side and end face of the coating pan, respectively, so as to contact the circumferential side and at least one end face of the coating pan for scraping, and is conducive to compensating for the wear of the front and side scrapers. Such a design can ensure that the paint is evenly coated on all parts of the coating pan, improving the coating uniformity and stability.

The scraper device for coating the plate disclosed in the embodiment of the present application can be used in various process flows that require coating operations on substrates, for example, it can be used in the slurry coating of battery pole pieces in the battery production process. In addition, the coating machine disclosed in the embodiment of the present application can be used for coating operations.

Figure 1 is an exploded view of the scraper device of some embodiments of the present application; Figure 2 is a stereoscopic view of the scraper device of Figure 1; Figure 3 is a stereoscopic view of the scraper device of Figure 1 without the guide cover plate; Figure 4 is a side view of the scraper device of Figure 3; Figure 5 is a top view of the scraper device of Figure 3; Figure 6 is a front view of the scraper device of Figure 3.

As shown in FIGS. 1 to 6 , the present application embodiment provides a scraper device 100 for a coating plate 210 (as shown in FIG. 7 ), wherein the coating plate 210 is disposed on a plate roller 200 (as shown in FIG. 7 ), and has two end surfaces 212 and a peripheral side surface 211 sandwiched between the two end surfaces, and the scraper device 100 includes: a fixed adapter assembly 1160, which is used to be fixed on a fixed plate 300 (as shown in FIG. 7 ) parallel to the plate roller 200; a drive mechanism 117, which is attached to the fixed adapter assembly 1160; a scraper assembly 1021, which includes a positive scraper 101 and a At least one side scraper 102, the front scraper 101 and the at least one side scraper 102 form a groove structure for embedding the coating disc, so as to respectively scrape the peripheral side surface 211 and at least one of the two end surfaces 212 of the coating disc 210; and a transmission assembly 1093, the transmission assembly 1093 is connected between the driving mechanism 117 and the scraper assembly 1021, and the driving mechanism 117 is constructed to move the front scraper 101 toward the peripheral side surface 211 of the coating disc and move at least one side scraper 102 toward at least one of the two end surfaces 212 of the coating disc 210 through the transmission assembly 1093.

It should be noted that the connection and attachment mentioned herein can be a direct connection or an indirect connection through an intermediate piece. For example, the coating disc can be directly sleeved on the plate roller, or the coating disc can also be connected to a sleeve sleeved on the plate roller.

As shown in Fig. 1 to Fig. 4, the fixed adapter assembly 1160 can be integrally formed with the fixed plate 300 or directly fixed to the fixed plate by other suitable methods such as gluing, and the fixed adapter assembly can also be connected to the fixed plate 300 by a fixed adapter set screw 1165. In addition, as shown in Fig. 1, the driving mechanism 117 can be connected to the transmission assembly by means of bolts.

In some examples, the coating tray may be cylindrical in shape, or may be configured in other shapes as required.

The driving mechanism 117 may be a pneumatic cylinder or a hydraulic cylinder, etc. As shown in FIGS. 1 to 6 , an adapter 1171 may be provided as an outflow and inflow channel for the medium of the driving mechanism 117 .

The groove structure formed by the front scraper 101 and at least one side scraper 102 for embedding the coating disc can be, for example, a "U"-shaped groove structure in the case of a front scraper and two side scrapers arranged at both ends of the front scraper, or can be, for example, an "L"-shaped groove structure in the case of a front scraper and a side scraper arranged at one end of the front scraper.

By fixing the adapter assembly on the fixed plate, and the transmission assembly connecting the scraper assembly and the drive mechanism attached to the fixed adapter assembly, it is helpful to achieve the fixed stability of the overall mechanism of the scraper device, and avoid the entire device from shaking or shifting when the scraper assembly is scraping the coating disc, thereby promoting the stability and uniformity of the coating slurry on the coating disc. In addition, the arrangement of the drive mechanism and the transmission assembly can make the front scraper and the side scraper move toward the circumferential side and end face of the coating disc respectively, so as to contact the circumferential side and at least one end face of the coating disc respectively for scraping, and it is conducive to compensating for the wear of the front and side scrapers. Such a design can ensure that the paint is evenly applied to various parts of the coating disc, improving the coating uniformity and stability.

According to some embodiments of the present application, the transmission assembly 1093 includes: an elastic transmission mechanism 1043 , which is connected between the scraper assembly 1093 and the driving mechanism 117 and is constructed to be in a compressed state under the action of the driving mechanism 117 .

As shown in FIG. 1 , the elastic transmission mechanism may be a spring, and these springs may be sleeved on bolts or other components to maintain positioning.

During the long-term use of the scraper device, the wear of the front scraper and the side scraper will gradually increase, resulting in changes in the scraping effect. In the above embodiment, the elastic transmission mechanism in a compressed state can adjust the position of the scraper assembly according to the change in the scraper wear, so that the front scraper and the side scraper always maintain an appropriate scraping angle and position, thereby achieving flexible compensation for the scraper or coating plate wear, which is conducive to maintaining the stability and consistency of the scraping effect, and further improving the stability and reliability of the coating process.

According to some embodiments of the present application, the elastic transmission mechanism 1043 includes at least one positive elastic transmission member 103 connected to the positive scraper 101 and at least one side elastic transmission member 104 connected to at least one side scraper 102, and the transmission assembly 1093 also includes: a push block 106, the push block 106 has a first end and a second end opposite to the first end, the first end is connected to the driving mechanism 117, and the second end is connected to at least one positive elastic transmission member 103 and at least one side elastic transmission member 104.

In the example shown in FIG1 , the number of at least one positive elastic transmission member 103 is two (for example, arranged side by side), and the number of at least one side elastic transmission member 104 is also two (for example, arranged side by side). It is understandable that the number of at least one positive elastic transmission member 103 and at least one side elastic transmission member 104 may not be limited.

In some examples, the elastic modulus of at least one positive elastic transmission member 103 and at least one side elastic transmission member 104 may be different. This is because the positive scraper 101 and at least one side scraper 102 perform scraping operations on different surfaces of the coating plate, and thus the wear amount of the positive scraper 101 and at least one side scraper 102 is generally different. Therefore, it is necessary to provide different elastic transmission members to provide different degrees of scraper flexibility compensation. It can be understood here that the arrangement of at least one positive elastic transmission member 103 and 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.

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 to at least one positive elastic transmission member 103 and at least one side elastic transmission member 104 by bolts. For example, as shown in Figure 1, the push block 106 can be connected to the elastic transmission member by bolts 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.

The push block 106 can also be connected to the positive elastic transmission member and the side elastic transmission member by direct connection methods such as welding. In addition, it is understandable that the push block 106 can be connected to the drive mechanism 117 by bolts, as shown in Figures 1 and 3.

In the above embodiment, the push block connects the driving mechanism and the elastic transmission member connected to the front and side scrapers respectively, so that one driving mechanism simultaneously pushes the front scraper and the side scraper, and the linkage movement of the front and side scrapers is realized, so that the scraping actions are synchronized, and the front and side scrapers are avoided from leaking slurry and uneven scraping, and the stability of the scraping effect is improved. In addition, the front elastic transmission member and the side elastic transmission member can flexibly compensate for the wear of the scraper or the coating plate according to the wear of the scraper, which helps to improve the stability of the scraping effect.

According to some embodiments of the present application, the elastic transmission mechanism 1043 is constructed to be biased or moved toward the peripheral side surface 211 of the coating tray 210, the elastic transmission mechanism 1043 includes at least one side elastic transmission member 104, and the transmission assembly 1093 also includes: a steering mechanism 1097, the steering mechanism 1097 is connected between at least one side elastic transmission member 104 and at least one side scraper 102, and is configured to convert the biased movement from at least one side elastic transmission member 104 toward the peripheral side surface of the coating tray into a movement toward at least one of the two end surfaces of the coating tray.

That is to say, the steering mechanism can receive the bias or movement toward the peripheral side of the coating plate from the elastic transmission mechanism, and convert the received bias or movement toward the peripheral side of the coating plate into movement toward the end face of the coating plate. In this article, 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 bias of the elastic transmission mechanism refers to the movement of one end of the elastic transmission mechanism due to the rebound force of the elastic member (for example, the offset of the positive elastic transmission member refers to the end of the positive elastic transmission member connected to the positive scraper due to the wear of the positive scraper, which causes the end to rebound and move). In some examples, the steering mechanism can realize the conversion of the moving direction of the side elastic transmission member by setting a gear device installed on different shafts. In other examples, the steering mechanism can also use a slider mechanism, that is, the movement of the side elastic transmission member toward the peripheral side of the coating plate pushes the slider to move along a certain axis, and the sliding movement drives other components to move toward the end face of the coating plate.

In the above embodiment, the setting of the steering mechanism can convert the movement of the side elastic transmission member toward the peripheral side surface of the coating pan into movement toward the end surface of the coating pan, thereby achieving the ability to simultaneously push the front scraper toward the peripheral side surface of the coating pan and the side scraper toward the end surface of the coating pan under the action of one driving mechanism, which helps to improve the coating work efficiency and reduce the manufacturing cost of the entire device.

According to some embodiments of the present application, at least one side scraper 102 includes a first side scraper 1022 and a second side scraper 1023, 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 steering mechanism includes: a first bevel push block 1071 and a second bevel push block 1072, the first bevel push block and the second bevel push block are respectively connected to the first side elastic transmission member 1041 and the second side elastic transmission member 1042, and the first bevel push block 1071 and the second bevel push block 1072 A first slope and a second slope opposite to each other are respectively arranged at the ends 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 are respectively used to fix the first side scraper 1022 and the second side scraper 1023, and the first side scraper holder 1051 and the second side scraper holder 1052 are respectively provided with a third slope matched with the first slope and a fourth slope matched with the second slope at the ends opposite to the first side scraper and the second side scraper.

The first side scraper holder 1051 and the second side scraper holder 1052 can fix the corresponding side scrapers by gluing or bolting.

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 bevel push block 1071 and the second bevel push block 1072, and maintain a certain degree of compression under the action of the first bevel push block 1071 and the second bevel push block 1072 and the push block 106.

As shown in Figure 3, when the driving mechanism 117 applies a force to 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 bevel push block 1071 and the second bevel push block 1072 by elastic force, so that the first bevel surface and the second bevel surface of the first bevel push block 1071 and the second bevel push block 1072 can squeeze (fit with) the third bevel surface and the fourth bevel surface, so that the first side scraper holder 1051 and the second side scraper holder 1052 can move along the direction of fit of the bevels (i.e., the directions opposite to each other, or the direction toward the end face of the coating plate).

As shown in Fig. 6, in some examples, the end shapes of the first side scraper holder 1051 and the second side scraper holder 1052 can be concave to respectively surround or semi-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 scrapers.

In the above embodiment, through the first and third inclined surfaces that fit each other, and the second and fourth inclined surfaces that fit each other, the steering mechanism realizes the conversion of the bias or movement from the side elastic transmission member toward the peripheral side surface of the coating pan into movement toward the end surface of the coating pan, thereby realizing that under the action of a driving mechanism, the front scraper can be pushed toward the peripheral side surface of the coating pan, and the side scraper can be pushed toward the end surface of the coating pan at the same time, which helps to improve the working efficiency of coating and reduce the manufacturing cost of the entire device. The above-mentioned inclined surface arrangement makes the layout of the device more compact and reduces the space occupied by the device.

According to some embodiments of the present application, the steering mechanism 1097 also includes a retainer retraction elastic member 108 connected between the first side scraper retainer 1051 and the second side scraper retainer 1052, and the retainer retraction elastic member 108 is constructed to be in a compressed state under the action of the first bevel push block 1071 and the second bevel push block 1072.

As shown in FIG1 , the retainer retraction elastic member 108 may be one or more springs, and the elastic modulus of the retainer retraction elastic member 108 may 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 retainer retraction elastic member 108 may be arranged so that the axial direction of the retainer retraction elastic member 108 is perpendicular to the axial direction of the at least one side elastic transmission member 104.

In the example shown in Figure 1, when the driving mechanism 117 retracts and the first bevel push block 1071 and the second bevel push block 1072 tend to retract along the retraction direction of the driving mechanism 117, the retaining frame retraction elastic member 108 can appropriately release its elastic potential energy in the compressed state, thereby driving the first side scraper retaining frame 1051 and the second side scraper retaining frame 1052 to move along the axial direction of the retaining frame retraction elastic member 108.

In the above embodiment, the retaining frame retraction elastic member in a compressed state under the action of the first bevel push block and the second bevel push block can help the side scraper retaining frame (and the corresponding side scraper) to remain in a suitable position, thereby achieving flexible adjustment of the side scraper, which is beneficial to maintaining the stability and consistency of the scraping effect.

According to some embodiments of the present application, the scraper device 100 also includes a shell 111 for accommodating a transmission assembly 1093, a first guide structure is arranged on the inner wall of the shell 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 first side scraper holder 1051 and the second side scraper holder 1052 to move toward the two end surfaces of the coating plate (i.e., the moving direction of the side scrapers).

As shown in FIG. 2 , the housing 111 may include a guide cover plate 110 .

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

As shown in Fig. 1, Fig. 3 and Fig. 4, the second guide structures 109 on the first side scraper holder 1051 and the second side scraper holder 1052 may also be guide bearings of suitable size. It can be understood that the number of the second guide structures 109 may be one or more, and when the number of the second guide structures 109 is more than one, each second guide structure 109 in each group of second guide structures 109 may be arranged along the same direction as the movement direction of the side scraper toward the end surface of the coating pan.

In the above embodiment, the guiding structure inside the shell and the matching structure on the scraper holder help to promote the accurate guidance of the movement direction of the side scraper holder, thereby improving the guiding performance, so as to limit the relative position of the side scraper on the side scraper holder and the end face of the coating plate, thereby further improving the consistency and uniformity of the coating slurry on the coating plate.

According to some embodiments of the present application, the scraper device 100 also includes a shell 111 for accommodating a transmission assembly 1093 , a positive scraper guide groove 120 is provided on the shell 111 , and the positive scraper 101 is inserted into the positive scraper guide groove 120 to be connected to the transmission assembly 1093 .

As shown in FIG. 1 , the housing 111 may be hollowed out at a specific location to form a positive scraper guide groove 120 .

In some examples, the scraper device 100 may further include a foam stopper 119 and a positive scraper push tongue 118 located in the positive scraper guide groove 120. The positive scraper push tongue 118 may be in direct contact with the positive scraper 101 to push the positive scraper 101 to move toward the side of the coating plate. The foam stopper 119 may be made of polyester fiber, polyurethane, cross-linked polyethylene or other suitable materials, and the foam stopper 119 may be used to prevent the positive scraper 101 from bringing the slurry into the transmission assembly through the positive scraper guide groove 120.

The setting of the positive scraper guide groove improves the connection stability and reliability between the positive scraper and the transmission assembly, and helps to avoid the connection problems such as loosening or falling off of the positive scraper during the coating process of the coating plate. 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 peripheral side of the coating plate more uniform.

According to some embodiments of the present application, a discharge hole (not shown) is provided on the lower side of the shell 110 near the positive scraper guide groove 120, and the scraper device 100 also includes: a first material baffle plate 113, which is provided below the positive scraper guide groove 120 of the shell; and a second material baffle plate 114, which is provided below the discharge hole of the shell 111.

In some examples, the first and second stopper plates 113 and 114 may be, for example, sheet metal.

In addition, as shown in FIGS. 1 to 3 , the first baffle plate 113 and the second baffle plate 114 may be concave. In addition, in some examples, the width of the first baffle plate 113 and the second baffle plate 114 may be consistent with the width of the housing 111 (as shown in FIG. 6 ), or the width of the first baffle plate 113 and the second baffle plate 114 may be slightly greater than the width of the housing 111.

In the above embodiment, the provision of the material discharge through hole and the double baffle plate can effectively control the flow of excess slurry or scraping material, thereby preventing slurry overflow and slurry retention in the transmission assembly, and helping to achieve stable circulation of the slurry. In addition, the first baffle plate below the positive scraper guide groove is conducive to shielding and/or intercepting the slurry scraped by the positive scraper, so as to prevent the slurry from entering the scraper assembly through the positive scraper guide groove, thereby helping to ensure the uniformity and consistency of coating.

According to some embodiments of the present application, the scraper device 100 further includes an angle adjustment mechanism, the drive mechanism 117 is attached to the fixed adapter assembly via the angle adjustment mechanism, and the angle adjustment mechanism is configured to adjust the angle between the drive mechanism 117 and the fixed adapter assembly.

The angle adjustment mechanism may be, for example, a screw mechanism connected between two components whose angles are to be changed, and the screw mechanism changes the angle between the two components by rotating a screw thread. Alternatively, the angle adjustment mechanism may also adopt other mechanisms capable of adjusting the angles of the two components.

The angle adjustment mechanism can adjust the relative angle of the drive structure with respect to the fixed adapter assembly. By adjusting the angle of the drive structure, the scraper device can adapt to the slurry coating work of different types and shapes of coating pans, thereby improving the adaptability and flexibility of the entire scraper device. In addition, the angle adjustment mechanism makes it easier and faster to adjust the scraper angle. The operator can adjust the coating angle at any time as needed, thereby improving the convenience of operation and work efficiency.

According to some embodiments of the present application, as shown in Figures 2 and 3, the angle adjustment mechanism includes: an angle adjustment body 115, the angle adjustment body 115 is attached to a fixed adapter assembly and includes a first side, a second side opposite to the first side, a first guide groove 1151 extending from the first side toward the second side, and a second guide groove 1152 arranged at the second side, the driving mechanism 117 is inserted in the first guide groove 1151 and connected to the second guide groove 1152 by bolts.

As shown in FIG. 2 and FIG. 3 , the specific shape of the angle adjustment body 115 may not be limited. For example, the shape of the angle adjustment body 115 may be bent to a certain extent according to the angle range to be adjusted. It should be understood that the degree of bending of the angle adjustment body 115 may not interfere with the fixed adapter assembly and/or the fixed plate. In some examples, the angle adjustment body 115 may be connected to the fixed adapter assembly by bolts.

In some examples, the length of the first guide groove 1151 can be changed on the angle adjustment body 115 according to the angle range to be adjusted, and the width of the first guide groove 1151 can be slightly larger than the housing width of the driving mechanism 117. The number of the second guide grooves 1152 can also be two, and the two second guide grooves 1152 can be respectively arranged on the first side and the second side, and their positions on the first side and the second side are exactly the same.

In the example shown in FIGS. 1 to 3 , the driving mechanism 117 is inserted into the first guide slot 1151 and can move within an angular range defined by the first guide slot 1151 .

In the above embodiment, the angle adjustment mechanism helps to achieve accurate adjustment of the angle between the drive mechanism and the fixed adapter assembly through the design of the guide groove and the bolt, thereby promoting the scraping effect and coating quality of the scraper device. In addition, the guide groove and the bolt connection method can provide a stable connection, avoid loosening or falling off during the angle adjustment process of the drive mechanism, and enhance the stability of the device.

According to some embodiments of the present application, the fixed adapter assembly 1160 includes: a fixed adapter 1161, which is used to be fixed on the fixed plate 300; and an adjusting member 1162, which is rotatably connected to the fixed adapter 1161 at the end of the adjusting member 1162, and the adjusting member 1162 is connected to the angle adjustment mechanism for adjusting the position of the angle adjustment mechanism.

In some examples, the angle adjustment mechanism can be attached to the fixed adapter assembly by bolting the angle adjustment body 115 to the adjustment member 1162. The fixed adapter 1161 can be fixed to the fixed plate 300 by the fixed adapter set screw 1165.

As shown in FIG3 , the adjusting member 1162 can be rotatably connected to the fixed adapter 1161 via a hinge shaft 1164. In addition, the fixed adapter assembly can also include an adjusting member set screw 1163, which can fix the adjusting member 1162 on the fixed adapter 1161. By unscrewing the adjusting member set screw 1163, the adjusting member 1162 can make the connected angle adjustment mechanism and other mechanisms rotate around the hinge shaft 1164.

In the above embodiment, the fixed connection of the fixed adapter helps to further achieve the fixed stability of the overall mechanism of the scraper device. In addition, through the rotatable connection between the adjustment member and the fixed adapter, the adjustment member can make the angle adjustment mechanism and the drive mechanism (and further, the transmission assembly and the scraper assembly connected to the drive mechanism) rotate around the end of the adjustment member, so that the operator can adjust the distance between the scraper device and the plate roller and/or the coating plate at any time, thereby facilitating the maintenance of the scraper device to avoid contaminating or damaging the slurry coating effect of the coating plate.

According to some embodiments of the present application, the front scraper 101 is stacked on at least one side scraper 102 .

As shown in FIG. 6 , when the front scraper 101 is stacked on at least one side scraper 102 , the gap width between the front scraper and at least one side scraper 102 can be very small, for example, the gap width between the front scraper and at least one side scraper 102 can be equal to or close to 0 mm.

In the above embodiment, the front scraper is stacked on at least one side scraper, which can prevent the slurry from leaking from the gap between the front and side scrapers during the scraping operation, thereby further facilitating the stable circulation of the slurry.

An embodiment of the present application provides a coating machine, as shown in Figure 7, the coating machine 7000 includes: a plate roller 200; at least one coating disc 210, at least one coating disc 210 is arranged on the plate roller 200; a fixed plate 300, the fixed plate 300 is arranged parallel to the plate roller 200; and at least one scraper device 100 of any one of the above embodiments fixed on the fixed plate 300.

A plurality of coating pans may be arranged along the axial direction of the plate roller, and in some examples, the coating pans may be cylindrical in shape.

In addition, the specific structure of the scraper device 100 refers to the above embodiment. The coating machine proposed herein includes all solutions of all embodiments of the above scraper device.

Therefore, such a coating machine can provide the advantages described above with respect to the scraping device, which will not be described in detail for the sake of brevity.

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

There is no specific limitation on the way in which the fixed plate can be moved relative to the plate roller along the extension direction of the plate roller. For example, a pulley can be connected to the lower end of the fixed plate and the movement can be achieved by sliding the pulley and the guide rail, or a plurality of recesses can be provided on the support member below the fixed plate, and at least one protrusion can be correspondingly provided on the fixed plate, and the position of the fixed plate relative to the plate roller can be changed by inserting at least one protrusion on the fixed plate into different recesses on the support member.

In the above embodiment, by setting a movable fixed plate, the scraper device fixed on the fixed plate can adaptively adjust the position of the scraper device according to the different positions of the coating disc on the plate roller, thereby helping to improve the flexibility and convenience of the coating operation of the coater.

A scraper device for a coating disc, the coating disc is arranged on a plate roller and has two end faces and a peripheral side face sandwiched between the two end faces, and the scraper device comprises: a fixed adapter assembly, used to be fixed on a fixed plate parallel to the plate roller; a driving mechanism, the driving mechanism is attached to the fixed adapter assembly; a scraper assembly, the scraper assembly comprises a front scraper 101 and at least one side scraper, the front scraper and the at least one side scraper form a groove structure for embedding the coating disc, so as to respectively scrape the peripheral side face and at least one of the two end faces of the coating disc; and a transmission assembly, the transmission assembly is connected between the driving mechanism and the scraper assembly, the driving mechanism is constructed to move the front scraper 101 toward the peripheral side face of the coating disc and move the at least one side scraper toward at least one of the two end faces of the coating disc through the transmission assembly.

The transmission assembly includes: an elastic transmission mechanism, which is connected between the scraper assembly and the driving mechanism and is configured to be in a compressed state under the action of the driving mechanism. The elastic transmission mechanism includes at least one positive elastic transmission member connected to the positive scraper and at least one side elastic transmission member connected to at least one side scraper, and the transmission assembly also includes: a push block, which has a first end and a second end opposite to the first end, the first end is connected to the driving mechanism, and the second end is connected to the at least one positive elastic transmission member and the at least one side elastic transmission member.

The transmission assembly also includes: a steering mechanism, which is connected between at least one side elastic transmission member and at least one side scraper, and is configured to convert the bias or movement from at least one side elastic transmission member toward the peripheral side surface of the coating plate into a movement toward at least one of the two end surfaces of the coating plate. The steering mechanism includes: a first bevel push block and a second bevel push block, which are respectively connected to the first side elastic transmission member and the second side elastic transmission member, and the first bevel push block and the second bevel push block are respectively provided with a first bevel and a second bevel opposite to each other at the ends 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, which are respectively used to fix the first side scraper and the second side scraper, and the first side scraper holder and the second side scraper holder are respectively provided with a third bevel that fits the first bevel and a fourth bevel that fits the second bevel at the ends opposite to the first side scraper and the second side scraper.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims (14)

1. A scraping device for a coating pan, characterized in that the coating pan is provided on a plate roller and has two end faces and a peripheral side face sandwiched between the two end faces, and the scraping device comprises:

the fixed switching component is used for being fixed on a fixed plate parallel to the plate roller;

A drive mechanism attached to the fixed adapter assembly;

the scraper assembly comprises a positive scraper and at least one side scraper, and the positive scraper and the at least one side scraper form a groove-shaped structure for embedding the coating disc so as to scrape at least one end face of the two end faces and the peripheral side face of the coating disc respectively; and

A transmission assembly connected between the drive mechanism and the scraper assembly,

The drive mechanism is configured to move the positive doctor blade toward the peripheral side surface of the pallet and the at least one side doctor blade toward at least one of the two end surfaces of the pallet by the transmission assembly,

The transmission assembly includes:

And 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.

2. The scraping apparatus as claimed in claim 1, wherein said elastic transmission mechanism comprises at least one positive elastic transmission member connected to said positive doctor blade and at least one side elastic transmission member connected to said at least one side doctor blade, and said transmission assembly further comprises:

the push block has a first end and a second end opposite the first end, the first end being connected to the drive mechanism and the second end being connected to the at least one positive elastic transmission member and the at least one lateral elastic transmission member.

3. The scraping apparatus of claim 1, wherein the resilient transmission mechanism is configured to be biased or movable toward a peripheral side of the applicator disc, the resilient transmission mechanism comprising at least one side resilient transmission member, the transmission assembly further comprising:

A steering mechanism connected between the at least one side elastic transmission member and the at least one side blade and configured to convert a bias or movement from the at least one side elastic transmission member toward a peripheral side surface of the coating pan into a movement toward at least one of two end surfaces of the coating pan.

4. A scraping device according to claim 3, wherein the at least one side blade comprises a first side blade and a second side blade, the at least one side elastic transmission member comprises a first side elastic transmission member and a second side elastic transmission member, and the steering mechanism comprises:

A first chamfer pushing block and a second chamfer pushing block, which are respectively connected with the first side elastic transmission member and the second side elastic transmission member, and which are respectively provided with a first inclined surface and a second inclined surface opposite to each other at the ends opposite to the first side elastic transmission member and the second side elastic transmission member; and

The first side scraper holder and the second side scraper holder are respectively used for fixing the first side scraper and the second side scraper, and the first side scraper holder and the second side scraper holder are respectively provided with a third inclined plane which is jointed with the first inclined plane and a fourth inclined plane which is jointed with the second inclined plane at the end parts which are opposite to the first side scraper and the second side scraper.

5. The scraping apparatus of claim 4, wherein the steering mechanism further comprises a holder retraction spring connected between the first side blade holder and the second side blade holder, and wherein the holder retraction spring is configured to be in a compressed state under the influence of the first chamfer pushing block and the second chamfer pushing block.

6. The scraping apparatus as claimed in claim 4, further comprising a housing for accommodating the transmission assembly, wherein a first guide structure is provided on an inner wall of the housing opposite to the first side blade holder and the second side blade holder, and a second guide structure cooperating with the first guide structure is provided on the first side blade holder and the second side blade holder to guide movement of the first side blade holder and the second side blade holder toward both end surfaces of the coating pan.

7. The scraping apparatus as claimed in any one of claims 1 to 5, further comprising a housing for accommodating said transmission assembly, a positive scraper guide groove being provided on said housing, and said positive scraper being inserted in said positive scraper guide groove to be connected with said transmission assembly.

8. The scraping apparatus as claimed in claim 7, wherein a discharge through hole is provided on the lower side of the housing near the positive doctor blade guide groove, and the scraping apparatus further comprises:

the first striker plate is arranged below the positive scraper guide groove of the shell; and

The second striker plate is arranged below the discharging through hole of the shell.

9. The scraping apparatus of any of claims 1-6, further comprising an angle adjustment mechanism, wherein the drive mechanism is attached to the fixed adapter assembly by the angle adjustment mechanism, and wherein the angle adjustment mechanism is configured to adjust an angle between the drive mechanism and the fixed adapter assembly.

10. The scraping apparatus as claimed in claim 9, wherein the angle adjusting mechanism comprises:

An angle adjustment body attached to the fixed adapter assembly and including a first side, a second side opposite the first side, a first guide slot extending from the first side toward the second side, and a second guide slot disposed at the second side, the driving mechanism being inserted within the first guide slot and connected with the second guide slot by a bolt.

11. The scraping apparatus of claim 9, wherein the fixed adapter assembly comprises:

the fixed adapter is used for being fixed on the fixed plate; and

The adjusting piece is rotatably connected with the fixed adapter piece at the end part of the adjusting piece, and the adjusting piece is connected with the angle adjusting mechanism for adjusting the position of the angle adjusting mechanism.

12. The scraping apparatus as claimed in any of claims 1 to 6, wherein said positive doctor blade is superimposed on said at least one side doctor blade.

13. A coater, characterized by comprising:

A plate roller;

At least one applicator disc disposed on the plate roller;

The fixed plate is arranged in parallel with the plate roller; and

At least one scraping device according to any one of claims 1 to 12, fixed on the fixing plate.

14. The coater according to claim 13, wherein the fixed plate is configured to be movable with respect to the platen roller in the extending direction of the platen roller.