Coating device

Abstract

The utility model discloses a coating device. The coating device comprises a coating roller, a scraping roller and a material blocking assembly. The scraping roller and the coating roller are arranged side by side, and a gap allowing slurry to penetrate through is formed between the scraping roller and the coating roller. The material blocking assembly is arranged on the outer sides of the coating roller and the scraping roller. The material blocking assembly comprises a supporting piece and a material blocking piece installed on the supporting piece, the material blocking piece comprises a matching part matched with the coating roller and a clamping part matched with the scraping roller, the first end of the matching part and the first end of the clamping part are connected to form an included angle part, the included angle part extends into the gap, and the second end of the matching part and the second end of the clamping part are far away from each other. And a first included angle is formed between the matching part and the clamping part and can be adjusted.

Description

Technical Field

[0001] The present application relates to the field of coating technology, and in particular to a coating device. Background Art

[0002] The coating device is mainly used for the surface coating process production of metal foils, films, etc., and generally adopts a special multifunctional coating device head, which can realize various forms of surface coating processes. The rolled substrates, such as metal foils, films, cloths, papers, etc., are coated with a layer of ingredients with specific functions, and then rolled up after drying. Because the coating device has a high degree of automation, it is widely used in coating production.

[0003] The most important and critical processes in the battery industry are slurry mixing, coating and liquid injection, and coating is the most important and the technical focus of the entire industry. The quality of coating directly affects the safety and quality of the product. At present, most battery coating uses a coating device, which includes a coating roller and a scraper roller. During the coating process, as the coating roller rotates, the slurry is easy to spread out, affecting the coating effect and causing slurry waste. Utility Model Content

[0004] In view of the above problems, the present application provides a coating device that can solve the problem that the slurry is easy to spread out, affecting the coating effect and also causing slurry waste.

[0005] In the first aspect, the present application provides a coating device, which includes a coating roller, a scraper roller and a material blocking assembly. The scraper roller and the coating roller are arranged side by side, and a gap is provided between the scraper roller and the coating roller for the slurry to pass through. The material blocking assembly is arranged on the outer sides of the coating roller and the scraper roller. The material blocking assembly includes a support member and a material blocking member installed on the support member, and the material blocking member includes a matching portion that matches with the coating roller and a clamping portion that matches with the scraper roller, the first end of the matching portion is connected to the first end of the clamping portion and forms an angle portion, the angle portion extends into the gap, the second end of the matching portion and the second end of the clamping portion are away from each other, so that there is a first angle between the matching portion and the clamping portion, and the first angle can be adjusted.

[0006] In the coating device of the above technical solution, by extending the angle portion of the material blocking member into the gap formed by the scraper roller and the coating roller, during the coating process, the slurry that is scattered due to the rotation of the coating roller can be blocked by the angle portion and fall into the slurry tank, which can ensure the coating effect on the one hand and avoid slurry waste on the other hand. At the same time, since the first angle between the matching portion and the clamping portion can be adjusted, no matter what the reason for the change in the size of the gap between the scraper roller and the coating roller, the angle portion can be extended into the gap to fill the gap and block the slurry from spreading out, that is, the material blocking component can always block the slurry from spreading out, and the coating effect can be guaranteed even when the gap changes.

[0007] As an optional technical solution of the present application, the material blocking member also includes a first adjusting portion, the opposite ends of which are respectively connected to the matching portion and the locking portion, and the first adjusting portion is used for multi-stage telescopic expansion to adjust the size of the first angle according to the size of the gap.

[0008] In the above technical solution, the material blocking member is arranged on the first adjusting portion to adjust the size of the first angle, ensuring that when the size of the gap between the scraper roller and the coating roller changes, the angle portion can extend into the gap to fill the gap and block the slurry from spreading out.

[0009] As an optional technical solution of the present application, the support member includes a first support portion and a second support portion, the first end of the first support portion is connected to the locking portion; the second end of the second support portion is connected to the matching portion, the second end of the first support portion is connected to the second end of the first support portion, and has a second angle, and the second angle can be adjusted to drive the first angle to change.

[0010] In the above technical solution, the first supporting portion is connected to the locking portion, and the second supporting portion is connected to the matching portion. The first angle can be changed by adjusting the second angle between the connected first supporting portion and the second supporting portion. It can also be ensured that when the size of the gap between the scraper roller and the coating roller changes, the angle portion can extend into the gap to fill the gap and prevent the slurry from spreading out.

[0011] As an optional technical solution of the present application, the support member also includes a second adjustment portion, the opposite ends of the second adjustment portion are respectively connected to the first support portion and the second support portion, and the second adjustment portion is used for multi-stage telescopic adjustment to adjust the size of the second angle according to the size of the gap, so as to drive the first angle between the mating portion and the locking portion to change.

[0012] In the above technical solution, the support member utilizes the second adjustment portion to adjust the size of the second angle, and then adjust the size of the first angle, thereby ensuring that when the size of the gap between the scraper roller and the coating roller changes, the angle portion can still extend into the gap to fill the gap and prevent the slurry from spreading out.

[0013] As an optional technical solution of the present application, the first adjustment part or the second adjustment part includes a shell, an elastic part passing through the shell and at least two limiting parts telescopically installed on the shell; at least two of the limiting parts are arranged in sequence along the length direction of the elastic part, and at least two of the limiting parts can selectively extend relative to the shell to the deformation path of the elastic part or retract relative to the shell to be located outside the deformation path of the elastic part, so that the size of the first angle matches the gap.

[0014] In the above technical solution, the first adjustment part or the second adjustment part adopts a multi-stage elastic telescopic structure, uses the elastic part to change the size of the first angle, and then uses the limiting part to keep the first angle matching the gap. In this way, a relatively simple structure can be used to adjust the size of the first angle.

[0015] As an optional technical solution of the present application, the first adjustment part or the second adjustment part includes a stator and a mover; the mover can be extended and retracted relative to the stator to adjust the size of the first angle to match the gap.

[0016] In the above technical solution, the first adjustment part or the second adjustment part adopts a multi-stage rigid telescopic structure, and utilizes the telescopic movement of the mover relative to the stator to change the size of the second angle, thereby driving the size of the first angle to change so that it can match the gap size and maintain the matching of the first angle with the gap. In this way, a relatively simple structure can be used to adjust the size of the first angle.

[0017] As an optional technical solution of the present application, the mating portion includes a first surface and a second surface opposite to each other, and the first surface of the mating portion is an arc surface that contacts and cooperates with the coating roller; the locking portion includes a first surface and a second surface opposite to each other, and the first surface of the locking portion is an arc surface that contacts and cooperates with the scraper roller.

[0018] In the above technical solution, since the first surface of the matching part is an arc surface, the first surface of the clamping part is an arc surface, the circumferential surface of the coating roller is an arc surface, and the circumferential surface of the scraper roller is an arc surface, the matching part and the coating roller can be seamlessly fitted, and the clamping part and the scraper roller can also be seamlessly fitted, thereby preventing the slurry from entering between the matching part and the coating roller or between the clamping part and the scraper roller, causing waste and affecting the coating effect.

[0019] As an optional technical solution of the present application, the material blocking member also includes a connecting portion, which extends from the second surface of the matching portion, and the connecting portion and the snap-fitting portion are both located on the side where the second surface of the matching portion is located, and the connecting portion is used to connect to an external structure, and the matching portion, the snap-fitting portion and the connecting portion together form a slot, and the support member is arranged in the slot.

[0020] In the above technical solution, the setting of the connecting portion can facilitate the fixed installation of the entire material blocking member, and the groove formed by the matching portion, the engaging portion and the connecting portion can play a good role in installing the supporting member.

[0021] As an optional technical solution of the present application, the coating device further includes a loading member, and the connecting portion is connected to the loading member.

[0022] In the above technical solution, the loading part is connected to the connecting portion, thereby realizing the installation of the material blocking assembly, and the installation is simple and convenient.

[0023] As an optional technical solution of the present application, the coating device further includes a clamping plate, and the clamping plate is configured to clamp the supporting member and the connecting portion to the loading member.

[0024] In the above technical solution, the setting of the clamping plate can firmly clamp the supporting member and the loading member without moving, so that the angle portion of the material blocking member can cooperate well with the coating roller and the scraping roller, thereby improving the effect of preventing the slurry from overflowing.

[0025] As an optional technical solution of the present application, the material blocking member is an EVA foam board, an acrylic board, a plastic board or a metal board.

[0026] In the above technical solution, when the material blocking member is an EVA foam board, the angle portion of the material blocking member can extend into the gap to form a good fit with the scraper roller and the coating roller, which can not only block the overflow of the slurry, but also play a sound insulation role, and prevent the slurry from leaking out and seeping into the foam and the coating roller to form particle agglomeration and cause marks on the membrane surface. That is, it can also improve the problem of dark marks caused by material seepage.

[0027] As an optional technical solution of the present application, the coating device also includes a first support frame and a first connecting member, and the scraper roller is rotatably connected to the first support frame through the first connecting member; the coating device also includes a second support frame and a second connecting member, and the coating roller is rotatably connected to the second support frame through the second connecting member.

[0028] In the above technical solution, the first support frame and the first connecting member jointly realize the installation and fixation of the scraper roller, and the second support frame and the second connecting member jointly realize the installation and fixation of the coating roller, so that the scraper roller and the coating roller can be arranged side by side.

[0029] 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

[0030] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0031] Figure 1 A schematic diagram of a planar structure of a coating device according to some embodiments of the present application from one viewing angle;

[0032] Figure 2 A schematic diagram of a planar structure of a coating device according to some embodiments of the present application from another perspective;

[0033] Figure 3 A schematic diagram of a planar structure of a coating device according to some other embodiments of the present application from another perspective;

[0034] Figure 4 This is a schematic structural diagram of a material blocking member of a material blocking assembly in a coating device according to some embodiments of the present application;

[0035] Figure 5 It is a structural schematic diagram of a material blocking member and a first adjusting part of a coating device in some embodiments of the present application;

[0036] Figure 6 It is a schematic structural diagram of a material blocking member and another first adjusting part of a coating device in some embodiments of the present application;

[0037] Figure 7 It is a structural schematic diagram of a material blocking member and a second adjusting part of a coating device in some embodiments of the present application;

[0038] Figure 8 This is a schematic structural diagram of a material blocking member and another second adjusting portion of a coating device according to some embodiments of the present application.

[0039] The reference numerals in the specific implementation manner are as follows:

[0040] Coating device 100;

[0041] Coating roller 10, scraper roller 30, gap 40, center line M, material blocking assembly 50;

[0042] Support member 51, first support portion 511, first end 5111 of the first support portion, second end 5113 of the first support portion, second support portion 513, first end 5131 of the second support portion, second end 5133 of the second support portion, second adjustment portion 515, second housing 5151, second elastic portion 5153, second position limiting portion 5155, second stator 5157, second mover 5159;

[0043] The material stopper 53, the matching portion 531, the first end 5311 of the matching portion, the second end 5313 of the matching portion, the first surface 5315 of the matching portion, the second surface 5317 of the matching portion, the engaging portion 533, the first end 5331 of the engaging portion, the second end 5333 of the engaging portion, the first surface 5335 of the engaging portion, the second surface 5337 of the engaging portion, the angle portion 535, the first adjusting portion 537, the first housing 5371, the first elastic portion 5373, the first limiting portion 5375, the first stator 5377, the first mover 5379, the first angle α, the second angle β, the connecting portion 539, and the slot 530;

[0044] Loading part 55;

[0045] Clamping plate 57, first clamping arm 571, second clamping arm 573, connecting arm 575;

[0046] The first supporting frame 61 , the first connecting member 71 , the second supporting frame 63 , and the second connecting member 73 . DETAILED DESCRIPTION

[0047] The following detailed description of the implementation of the technical solution of the present application is provided in conjunction with the accompanying drawings. The following implementation is only used to more clearly illustrate the technical solution of the present application, and is therefore only used as an example, and cannot be used to limit the scope of protection of the present application.

[0048] 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 implementation methods 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.

[0049] In the description of the implementation methods of this 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 implementation methods of this application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0050] Reference to "embodiment" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment 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.

[0051] 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.

[0052] 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).

[0053] 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. They 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.

[0054] In the description of the implementation methods of the present application, unless otherwise clearly stipulated 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 integrated 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; it can be the internal connection of two elements or the interaction relationship between two elements.

[0055] See also Figure 1 and Figure 2 The present application provides a coating device 100. The coating device 100 includes a coating roller 10, a scraper roller 30 and a material blocking assembly 50. The scraper roller 30 and the coating roller 10 are arranged side by side, and a gap 40 is provided between the scraper roller 30 and the coating roller 10 for the slurry to pass through. The material blocking assembly 50 is arranged on the outside of the coating roller 10 and the scraper roller 30. The material blocking assembly 50 includes a support member 51 and a material blocking member 53 installed on the support member 51. Figure 4The material blocking member 53 includes a matching portion 531 that matches with the coating roller 10 and a locking portion 533 that matches with the scraper roller 30. The first end 5311 of the matching portion 531 is connected to the first end 5331 of the locking portion 533 to form an angle portion 535. The second end 5313 of the matching portion 531 and the second end 3533 of the locking portion 533 are far away from each other, so that there is a first angle α between the matching portion 531 and the locking portion 533. The angle portion 535 extends into the gap 40, and the first angle α between the matching portion 531 and the locking portion 533 can be adjusted.

[0056] The coating device 100 is a device for coating a rolled substrate, such as metal foil, film, cloth, paper, etc., with a layer of ingredients with specific functions, and then drying and rolling it up. In some embodiments of the present application, the coating device 100 is a device for coating a rolled metal foil with a slurry to form a coating area of ​​an electrode sheet. It should be noted that in other embodiments, the coating device 100 can also be a device for coating other ingredients with specific functions on a substrate to form other components.

[0057] The coating roller 10 is a rotatable roller for winding a substrate (such as a metal foil). The coating roller 10 has two end surfaces and a circumferential surface connected to both end surfaces. Generally, the coating roller 10 is a cylindrical structure, the two end surfaces are circular, and the circumferential surface is a circumferential surface. The scraper roller 30 is a roller used to squeeze the slurry when the slurry is applied to the substrate so that the thickness of the slurry is the required thickness. The scraper roller 30 also has two end surfaces and a circumferential surface connected to both end surfaces. In some embodiments, the scraper roller 30 is a cylindrical structure, the two end surfaces are circular, and the circumferential surface is a circumferential surface, such as Figure 2 or Figure 3 In other embodiments, the scraper roller 30 is not a cylindrical structure, and the two end faces are not circular, but a comma roller with a "comma" portion. That is, the end face shape of the scraper roller 30 is a "comma" shape. In this case, the extrusion force of the scraper roller 30 is more concentrated on the "comma" portion, and the coating is more precise and the effect is better.

[0058] The scraper roller 30 and the coating roller 10 are arranged side by side. Specifically, the scraper roller 30 and the coating roller 10 are arranged side by side in the direction of the center line M of the end faces on the same side of the two. For example, the scraper roller 30 and the coating roller 10 are as follows: Figure 2 or Figure 3 As shown, they are arranged side by side up and down. A gap 40 is provided between the scraper roller 30 and the coating roller 10 for the slurry to pass through, that is, the gap 40 is formed by the circumference of the scraper roller 30 and the circumference of the coating roller 10, and the gap 40 is usually the thickness of the coating area to be formed. When the slurry passes through the gap 40 between the scraper roller 30 and the coating roller 10, the scraper roller 30 scrapes off the excess slurry and returns it to the slurry tank.

[0059] The material blocking assembly 50 is a component used to block the slurry from overflowing. In the present application, there are two material blocking assemblies 50, which are respectively arranged at both ends of the substrate in the width direction, and are used to block the slurry from overflowing from the edge of the substrate in the width direction. The material blocking assembly 50 includes a support member 51 and a material blocking member 53 installed on the support member 51, wherein the material blocking member 53 is a structure specifically used to block the slurry from overflowing, and the support member 51 is a structure used to support the material blocking member 53.

[0060] In some embodiments, the material blocking member 53 may be an EVA foam board, an acrylic board, a plastic board or a metal board. Among them, the EVA foam board has good softness and elasticity, can still have good flexibility at -50°C, has good chemical stability, slows aging and good ozone resistance, and is harmless. Therefore, when the material blocking member 53 is an EVA foam board, the angle portion 535 of the material blocking member 53 can extend into the gap 40 to form a good match with the scraper roller 30 and the coating roller 10, which can not only block the overflow of the slurry, but also play a role in sound insulation, and prevent the slurry from leaking out and infiltrating between the material blocking member 53 (EVA foam board) and the coating roller 10 when flowing, forming particle agglomeration and causing dark marks on the membrane surface, that is, it can also improve the dark mark problem caused by seepage.

[0061] In addition, the EVA foam sheet can be formed by stamping, injection molding, extrusion molding, blow molding, calendering, rotational vacuum thermoforming, foaming, coating, heat sealing, welding and other molding processes. Among them, the use of the standard EVA foam sheet after stamping can ensure that the trimming of the EVA foam sheet is neat, so as to ensure the consistency with the side edge of the coating layer. Moreover, the tip position of the angle portion 535 is adjusted from the previous rounded angle to a suitable sharp angle, which can avoid the scraper roller 30 grinding the EVA foam sheet to cause uneven grinding and dark marks.

[0062] See also Figure 2 and Figure 4 ,or Figure 3 and Figure 4The material stopper 53 includes a matching portion 531 and a clamping portion 533 connected to each other. The matching portion 531 matches with the coating roller 10, and the clamping portion 533 matches with the scraping roller 30. The matching portion 531 is a curved structure, and has a first end 5311 and a second end 5313 opposite to each other. The matching portion 531 is also a curved structure, and the clamping portion 533 also has a first end 5331 and a second end 5333 opposite to each other. The first end 5311 of the matching portion 531 is connected to the first end 5331 of the clamping portion 533, and the second end 5313 of the matching portion 531 is away from the second end 5333 of the clamping portion 533, so that the matching portion 531 and the clamping portion 533 form a "human" shaped structure together. The "human" shaped structure has an angle portion 535 with a triangular or trapezoidal cross section at the connection end of the matching portion 531 and the clamping portion 533, and there is a first angle α between the matching portion 531 and the clamping portion 533. The first angle α is the angle between the two intersecting surfaces of the matching portion 531 and the engaging portion. When the two intersecting surfaces are arc-shaped, the first angle α is the angle between the tangents of the two arc surfaces passing through the intersection point (the intersection point of the arc surfaces), such as Figure 2 The angle portion 535 extends into the gap 40, and the first angle α between the matching portion 531 and the engaging portion 533 can be adjusted, that is, the angle of the first angle α can be changed, for example, from 70° to 65°, 60°, 55°, 50°, 45°, 40° or 30°, etc., which are not listed here one by one.

[0063] Specifically, the matching portion 531 includes a first surface 5315 and a second surface 5317 facing each other, and the first surface 5315 of the matching portion 531 is a curved surface that contacts and matches with the coating roller 10. The clamping portion 533 also includes a first surface 5335 and a second surface 5337 facing each other, and the first surface 5335 of the clamping portion 533 is a curved surface that contacts and matches with the scraper roller 30. Since the first surface 5315 of the matching portion 531 is a curved surface, and the circumferential surface of the coating roller 10 is a circumferential surface, which is also a curved surface, the two can fit well together. During the coating process, the rotation of the coating roller 10 will not be hindered by the matching portion 531. At the same time, the matching portion 531 can better wrap the circumferential surface of the coating roller 10 to achieve seamless fitting, and avoid the slurry from entering between the matching portion 531 and the coating roller 10 to cause waste and affect the coating effect. Similarly, since the first surface 5335 of the locking portion 533 is an arc surface, and the circumferential surface of the scraper roller 30 is a circular surface, which is also an arc surface, the two can fit well together. During the coating process, the rotation of the scraper roller 30 will not be hindered by the locking portion 533. At the same time, the locking portion 533 can better wrap the circumferential surface of the scraper roller 30 to achieve seamless fitting, thereby preventing the slurry from entering between the locking portion 533 and the scraper roller 30 to cause waste and affect the coating effect.

[0064] In the coating device 100 of the above technical solution, by extending the angle portion 535 of the material blocking member 53 into the gap 40 formed by the scraper roller 30 and the coating roller 10, during the coating process, the slurry caused by the rotation of the coating roller 10 can be blocked by the angle portion 535 and fall into the slurry tank, which can ensure the coating effect on the one hand and avoid slurry waste on the other hand. At the same time, since the first angle α between the matching portion 531 and the clamping portion 533 can be adjusted, no matter what the size of the gap 40 between the scraper roller 30 and the coating roller 10 is changed for any reason, the angle portion 535 can be extended into the gap 40 to fill the gap 40 and block the slurry from spreading out, that is, the material blocking component 50 can always block the slurry from spreading out, and the coating effect can be guaranteed even when the gap 40 changes.

[0065] Please also refer to Figure 2 and Figure 4 The material blocking member 53 may further include a first adjusting portion 537, which is a multi-stage telescopic structure. The opposite ends of the first adjusting portion 537 are respectively connected to the matching portion 531 and the snap-fit ​​portion 533. The first adjusting portion 537 is used for multi-stage telescopic adjustment to adjust the size of the first angle α between the matching portion 531 and the snap-fit ​​portion 533 according to the size of the gap 40 to keep matching with the gap 40.

[0066] Specifically, please combine Figure 5In some embodiments, the first adjusting portion 537 may be a multi-stage telescopic structure capable of elastic deformation (hereinafter referred to as a multi-stage elastic telescopic structure), one end of the first adjusting portion 537 is connected to the matching portion 531, and the other end of the first adjusting portion 537 is connected to the clamping portion 533. Specifically, the first adjusting portion 537 (multi-stage elastic telescopic structure) includes a first shell 5371, a first elastic portion 5373 penetrating the first shell 5371, and at least two first limiting portions 5375 telescopically mounted on the first shell 5371. The opposite ends of the first elastic portion 5373 are respectively connected to the matching portion 531 and the clamping portion 533 to apply a spreading force or a tensioning force to the matching portion 531 and / or the clamping portion 533, thereby playing a spreading effect or a tensioning effect on the matching portion 531 and / or the clamping portion 533. At least two first limiting portions 5375 are arranged in sequence along the length direction of the first elastic portion 5373, and can selectively extend to the deformation path of the first elastic portion 5373 relative to the first shell 5371 or retract relative to the first shell 5371 to be located outside the deformation path of the first elastic portion 5373, so that when the size of the expanding force or the tensioning force of the first elastic portion 5373 changes, the size of the first angle is kept matching the size of the gap 40, that is, the angle portion 535 can always be filled into the gap 40 between the scraper roller 30 and the coating roller 10 to prevent overflow of the slurry, that is, the first surface 5315 of the matching portion 531 always maintains a good fit with the circumferential surface of the coating roller 10, and the first surface 5335 of the locking portion 533 always maintains a good fit with the circumferential surface of the scraper roller 30. When the external force applied to the mating portion 531 and / or the snap-fitting portion 533 changes, the change in the external force will be transmitted to the first adjusting portion 537, and the expanding force or tensioning force of the first elastic portion 5373 of the first adjusting portion 537 will change. The first limiting portion 5375 that initially cooperates with the first elastic portion 5373 will retract due to the external force and be located outside the deformation path of the first elastic portion 5373. The first elastic portion 5373 will be deformed to change the size of the first angle α so that it can match the size of the gap 40. The other first limiting portion 5375 of the first adjusting portion 537 can automatically extend relative to the first shell 5371 to the deformation path of the first elastic portion 5373 so that the mating portion 531 and the snap-fitting portion 533 can remain in a position where the size of the first angle α matches the size of the gap 40.For example, when the gap 40 between the scraper roller 30 and the coating roller 10 increases, the external force exerted on the matching portion 531 and / or the snap-fit ​​portion 533 decreases, the opening force of the first adjustment portion 537 increases or the tensioning force of the first adjustment portion 537 decreases, and the first limiting portion 5375 that initially matches with the first elastic portion 5373 retracts due to the external force and is located outside the deformation path of the first elastic portion 5373. The first elastic portion 5373 of the multi-stage elastic telescopic structure is extended, and the first angle α between the matching portion 531 and the snap-fit ​​portion 533 increases and is re-matched with the increased gap 40. The angle portion 535 can still be filled into the gap 40 between the scraper roller 30 and the coating roller 10 to prevent overflow of the slurry. For another example, when the gap 40 between the scraper roller 30 and the coating roller 10 is reduced, the external force exerted on the matching portion 531 and / or the snap-fit ​​portion 533 increases, the opening force of the first adjustment portion 537 is reduced or the tensioning force of the first adjustment portion 537 is increased, and the first limiting portion 5375 initially matched with the first elastic portion 5373 retracts due to the external force and is located outside the deformation path of the first elastic portion 5373. The first elastic portion 5373 of the multi-stage elastic telescopic structure is shortened, and the first angle α between the matching portion 531 and the snap-fit ​​portion 533 is reduced and re-matched with the reduced gap 40. The angle portion 535 can still be filled into the gap 40 between the scraper roller 30 and the coating roller 10 to prevent overflow of the slurry.

[0067] Please combine Figure 6In other embodiments, the first adjustment portion 537 may be a multi-stage telescopic structure that does not undergo elastic deformation (hereinafter referred to as a multi-stage rigid telescopic structure), such as a multi-stage cylinder telescopic structure, a multi-stage hydraulic cylinder telescopic structure, or a multi-stage linear telescopic motor. One end of the first adjustment portion 537 is connected to the matching portion 531, and the other end of the first adjustment portion 537 is connected to the engaging portion 533. The first adjustment portion 537 (multi-stage rigid telescopic structure) includes a first stator 5377 and a first mover 5379. One of the first stator 5377 and the first mover 5379 is connected to the matching portion 531, and the other of the first stator 5377 and the first mover 5379 is connected to the engaging portion 533. The first mover 5379 can be telescoped relative to the first stator 5377 to prop open the matching portion 531 and the engaging portion 533. When the external force on the matching portion 531 and / or the engaging portion 533 changes, the first adjusting portion 537 can automatically adjust the degree of expansion of the matching portion 531 and the engaging portion 533 in response to the change in the external force, so as to change the size of the first angle α between the matching portion 531 and the engaging portion 533, and enable the matching portion 531 and the engaging portion 533 to maintain a position where the size of the first angle always matches the size of the gap 40. For example, when the gap 40 between the scraper roller 30 and the coating roller 10 increases, the external force on the matching portion 531 and / or the engaging portion 533 decreases, the first mover 5379 is extended relative to the first stator 5377 to increase the first angle α and re-match the increased gap 40, and the angle portion 535 can still fill the gap 40 between the scraper roller 30 and the coating roller 10 to prevent the slurry from overflowing. For another example, when the gap 40 between the scraper roller 30 and the coating roller 10 is reduced, the external force exerted on the matching portion 531 and / or the locking portion 533 increases, and the first mover 5379 is shortened relative to the first stator 5377 to reduce the first angle α and re-match the reduced gap 40. The angle portion 535 can still be filled into the gap 40 between the scraper roller 30 and the coating roller 10 to prevent overflow of the slurry.

[0068] In the above technical solution, the material stopper 53 is arranged on the first adjusting portion 537 to adjust the size of the first angle α, which has a simple structure and is easy to implement, and can ensure that when the size of the gap 40 between the scraper roller 30 and the coating roller 10 changes, the angle portion 535 can still extend into the gap 40 to fill the gap 40 and prevent the slurry from spreading out. Further, when the first adjusting portion 537 adopts a multi-stage elastic telescopic structure, the first elastic portion 5373 can be used to change the size of the first angle α, and the first limiting portion 5375 can be used to keep the first angle α matching the gap 40. In this way, a relatively simple structure can be used to adjust the size of the first angle α. In the first adjusting portion 537, a multi-stage rigid telescopic structure is adopted, and the first mover 5379 can be used to change the size of the first angle α relative to the first stator 5377, and the first angle α can be kept matching the gap 40. In this way, a relatively simple structure can be used to adjust the size of the first angle α.

[0069] Please also read Figure 2 and Figure 4 , or see also Figure 3 and Figure 4 In some embodiments, the support member 51 is an open structure with one end closed and one end open, formed by two plate-like structures connected at one end and separated from each other at the other end. Specifically, the support member 51 (open structure) may include a first support portion 511 and a second support portion 513. In some examples, the first support portion 511 and the second support portion 513 are both plate-shaped; in other examples, the first support portion 511 and the second support portion 513 are both strip-shaped. Of course, the first support portion 511 and the second support portion 513 may also be other shapes, which are not listed here. The first end 5111 of the first support portion 511 is connected to the engaging portion 533, the second end 5133 of the second support portion 513 is connected to the matching portion 531, and the second end 5113 of the first support portion 511 is connected to the second end 5113 of the first support portion 511, thereby forming a second angle β, which can be adjusted to drive the first angle α to change.

[0070] In the above technical solution, the first support portion 511 is connected to the locking portion 533, and the second support portion 513 is connected to the matching portion 531. The first angle α can be changed by adjusting the second angle β between the first support portion 511 and the second support portion 513. Similarly, when the size of the gap 40 between the scraper roller 30 and the coating roller 10 changes, the angle portion 535 can extend into the gap 40 to fill the gap 40 and prevent the slurry from spreading outward.

[0071] Please also refer to Figure 3 and Figure 4In some embodiments, the support member 51 also includes a second adjustment portion 515, which is a multi-stage telescopic structure. The opposite ends of the second adjustment portion 515 are respectively connected to the first support portion 511 and the second support portion 513. The second adjustment portion 515 is used for multi-stage telescopic adjustment to adjust the size of the second angle β according to the size of the gap 40, thereby driving the size of the first angle α to change to match the gap 40.

[0072] Specifically, please combine Figure 7In some embodiments, the second adjustment portion 515 may be a multi-stage telescopic structure capable of elastic deformation (hereinafter referred to as a multi-stage elastic telescopic structure), one end of the second adjustment portion 515 is connected to the first support portion 511, and the other end of the second adjustment portion 515 is connected to the second support portion 513. Specifically, the second adjustment portion 515 (multi-stage elastic telescopic structure) includes a second shell 5151, a second elastic portion 5153 penetrating the second shell 5151, and at least two second limit portions 5155 telescopically mounted on the second shell 5151. The opposite ends of the second elastic portion 5153 are respectively connected to the first support portion 511 and the second support portion 513 to apply a spreading force or a tensioning force to the first support portion 511 and / or the second support portion 513, thereby spreading or tensioning the first support portion 511 and / or the second support portion 513. At least two second limiting portions 5155 are arranged in sequence along the length direction of the second elastic portion 5153, and can selectively extend to the deformation path of the second elastic portion 5153 relative to the second shell 5151 or retract relative to the second shell 5151 to be located outside the deformation path of the second elastic portion 5153, so that when the size of the expanding force or the tensioning force of the second elastic portion 5153 changes, the size of the second angle is changed and the first angle is driven to change to keep matching the size of the gap 40, that is, the angle portion 535 can always be filled into the gap 40 between the scraper roller 30 and the coating roller 10 to prevent overflow of the slurry, that is, the second surface 5315 of the matching portion 531 always maintains a good fit with the circumferential surface of the coating roller 10, and the second surface 5335 of the locking portion 533 always maintains a good fit with the circumferential surface of the scraper roller 30. When the external force applied to the mating portion 531 and / or the locking portion 533 changes, the change in the external force will be transmitted to the second adjusting portion 515 through the first supporting portion 511 and the second supporting portion 513, and the expanding force or tensioning force of the second elastic portion 5153 of the second adjusting portion 515 will change. The second limiting portion 5155 that initially cooperates with the second elastic portion 5153 will retract due to the external force and be located outside the deformation path of the second elastic portion 5153. The second elastic portion 5153 will deform to change the size of the second angle β, thereby driving the size of the first angle α to change so that it can match the size of the gap 40. At the same time, the other second limiting portion 5155 of the second adjusting portion 515 can automatically extend relative to the second shell 5151 to the deformation path of the second elastic portion 5153 so that the first supporting portion 511 and the second supporting portion 513 can be maintained at a position that matches the size of the first angle α with the size of the gap 40.For example, when the gap 40 between the scraper roller 30 and the coating roller 10 increases, the external force exerted on the matching portion 531 and / or the snap-fit ​​portion 533 decreases, the opening force of the second adjustment portion 515 increases or the tensioning force of the second adjustment portion 515 decreases, and the second limiting portion 5155 initially matched with the second elastic portion 5153 retracts due to the external force and is located outside the deformation path of the second elastic portion 5153. The second elastic portion 5153 of the multi-stage elastic telescopic structure is elongated, and the second angle β of the support member 51 increases, thereby driving the first angle α between the matching portion 531 and the snap-fit ​​portion 533 to also increase and re-match with the increased gap 40. The angle portion 535 can still be filled into the gap 40 between the scraper roller 30 and the coating roller 10 to prevent overflow of the slurry. For another example, when the gap 40 between the scraper roller 30 and the coating roller 10 is reduced, the external force exerted on the matching portion 531 and / or the locking portion 533 increases, the opening force of the second adjustment portion 515 is reduced or the tensioning force of the second adjustment portion 515 is increased, and the second limiting portion 5155 initially matched with the second elastic portion 5153 retracts due to the external force and is located outside the deformation path of the second elastic portion 5153. The second elastic portion 5153 of the multi-stage elastic telescopic structure is shortened, and the second angle β of the support member 51 is reduced, thereby driving the first angle α to also decrease and re-match with the reduced gap 40. The angle portion 535 can still be filled into the gap 40 between the scraper roller 30 and the coating roller 10 to prevent overflow of the slurry.

[0073] Please combine Figure 8In other embodiments, the second adjustment portion 515 can be a multi-stage telescopic structure that does not undergo elastic deformation (hereinafter referred to as a multi-stage rigid telescopic structure), such as a multi-stage cylinder telescopic structure, a multi-stage hydraulic cylinder telescopic structure, or a multi-stage linear telescopic motor. One end of the second adjustment portion 515 is connected to the first support portion 511, and the other end of the second adjustment portion 515 is connected to the second support portion 513. The second adjustment portion 515 (multi-stage rigid telescopic structure) includes a second stator 5157 and a second mover 5159. One of the second stator 5157 and the second mover 5159 is connected to the first support portion 511, and the other of the second stator 5157 and the second mover 5159 is connected to the second support portion 513. The second mover 5159 can be telescoped relative to the second stator 5157 to open the support member 51. When the external force on the matching portion 531 and / or the engaging portion 533 changes, the second adjusting portion 515 can automatically adjust the degree of its opening of the support member 51 in response to the change in the external force, so as to change the size of the second angle β of the support member 51, and enable the first support portion 511 and the second support portion 513 to remain in a position where the size of the first angle always matches the size of the gap 40. For example, when the gap 40 between the scraper roller 30 and the coating roller 10 increases, the external force on the matching portion 531 and / or the engaging portion 533 decreases, and the second mover 5159 is extended relative to the second stator 5157 to increase the second angle β of the support member 51, thereby driving the first angle α between the matching portion 531 and the engaging portion 533 to increase and re-match with the increased gap 40, and the angle portion 535 can still fill the gap 40 between the scraper roller 30 and the coating roller 10 to prevent the slurry from overflowing. For another example, when the gap 40 between the scraper roller 30 and the coating roller 10 is reduced, the external force on the matching portion 531 and / or the snap-fit ​​portion 533 increases, and the second mover 5159 is shortened relative to the second stator 5157 to reduce the second angle β of the support member 51, thereby driving the first angle α between the matching portion 531 and the snap-fit ​​portion 533 to also decrease and re-match the reduced gap 40. The angle portion 535 can still be filled into the gap 40 between the scraper roller 30 and the coating roller 10 to prevent overflow of the slurry.

[0074] In the above technical solution, the support member 51 uses the second adjustment portion 515 to adjust the size of the second angle β, and then adjust the size of the first angle α between the matching portion 531 and the locking portion 533, so as to ensure that when the size of the gap 40 between the scraper roller 30 and the coating roller 10 changes, the angle portion 535 can still extend into the gap 40 to fill the gap 40 and prevent the slurry from spreading out. Further, when the second adjustment portion 515 adopts a multi-stage elastic telescopic structure, the second elastic portion 5153 can be used to change the size of the second angle β, thereby driving the size of the first angle α to change so that it can match the size of the gap 40, and then the second limiting portion 5155 is used to keep the first angle α matching the gap 40. In this way, a relatively simple structure can be used to adjust the size of the first angle α. A multi-stage rigid telescopic structure is adopted in the second adjustment part 515, and the size of the second angle β can be changed by utilizing the telescopic movement of the second mover 5159 relative to the second stator 5157, thereby driving the size of the first angle α to change so that it can match the size of the gap 40 and maintain the matching of the first angle α with the gap 40. In this way, a relatively simple structure can be used to adjust the size of the first angle α.

[0075] Please also read Figure 2 and Figure 4 , or see also Figure 3 and Figure 4 , further, in some embodiments, the material stopper 53 may also include a connecting portion 539. The connecting portion 539 extends from the second surface 5317 of the matching portion 531, and the connecting portion 539 and the engaging portion 533 are both located on the side where the second surface 5317 of the matching portion 531 is located. The connecting portion 539 is used to connect with an external structure. The matching portion 531, the engaging portion 533 and the connecting portion 539 together form a slot 530, and the support member 51 is arranged in the slot 530. Among them, the connecting portion 539 can be a block structure, a strip structure, a rod structure or a plate structure, one end of the connecting portion 539 is connected to the matching portion 531, and the other end of the connecting portion 539 is a free end. The setting of the connecting portion 539 can facilitate the fixed installation of the entire material stopper 53. In addition, the slot 530 formed by the matching portion 531, the engaging portion 533 and the connecting portion 539 can well play a role in installing the support member 51.

[0076] Please also refer to Figure 2 and Figure 4 , or see also Figure 3 and Figure 4 Furthermore, in some embodiments, the coating device 100 may further include a loading member 55 , and the connecting portion 539 is connected to the loading member 55 .

[0077] Specifically, the loading member 55 is fixed on a bracket (not shown) and is located above the slurry tank of the coating device 100, and the connecting portion 539 is mounted on the loading member 55. That is, the setting of the loading member 55 is convenient for the installation of the material blocking assembly 50, so that the installation of the material blocking assembly 50 is simple and convenient. At the same time, the loading member 55 can also prevent the overflow of the slurry. In addition, the loading member 55 can be a block structure, a strip structure, a rod structure or a plate structure. Preferably, the loading member 55 is adapted to the structure of the connecting portion 539. For example, when the connecting portion 539 is a block structure, the loading member 55 is also a block structure; when the connecting portion 539 is a strip structure, the loading member 55 is also a strip structure; when the connecting portion 539 is a plate structure, the loading member 55 is also a plate structure.

[0078] Please also read Figure 2 and Figure 4 , or see also Figure 3 and Figure 4 Furthermore, in some embodiments, the coating device 100 may further include a clamping plate 57 , and the clamping plate 57 is configured to clamp the supporting member 51 and the connecting portion 539 onto the loading member 55 .

[0079] Specifically, the clamping plate 57 is roughly V-shaped, and includes a first clamping arm 571, a second clamping arm 573, and a connecting arm 575 for connecting the first clamping arm 571 and the second clamping arm 573. The first clamping arm 571 is clamped to the first supporting portion 511 of the supporting member 51, and the second clamping arm 573 is clamped to the loading member 55. The arrangement of the clamping plate 57 can firmly clamp the supporting member 51 and the loading member 55 without moving, so that the angle portion 535 of the material blocking member 53 can cooperate well with the coating roller 10 and the scraping roller 30, thereby improving the effect of preventing the slurry from overflowing.

[0080] See also Figure 1, the coating device 100 may further include a first support frame 61, a first connecting member 71, a second support frame 63 and a second connecting member 73. The scraper roller 30 is rotatably connected to the first support frame 61 through the first connecting member 71. The coating roller 10 is rotatably connected to the second support frame 63 through the second connecting member 73. Specifically, in some embodiments, the positional relationship between the first support frame 61 and the second support frame 63 is arranged up and down, the positional relationship between the first connecting member 71 and the second connecting member 73 is also arranged up and down, the first support frame 61 and the second support frame 63 are both frame structures, the first connecting member 71 and the second connecting member 73 are both connecting shafts, and the two ends of the scraper roller 30 are rotatably connected to the opposite ends of the first support frame 61 through the connecting shaft, and the two ends of the coating roller 10 are rotatably connected to the opposite ends of the second support frame 63 through the connecting shaft. In this way, the scraper roller 30 can rotate relative to the first support frame 61 around the connecting shaft, and the coating roller 10 can also rotate relative to the second support frame 63 around the connecting shaft. In the embodiment of the present application, the first support frame 61 and the first connecting member 71 together realize the installation and fixation of the scraper roller 30 , and the second support frame 63 and the second connecting member 73 together realize the installation and fixation of the coating roller 10 .

[0081] 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 above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above 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 various 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 each embodiment 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

1. A coating device, characterized in that: The coating device comprises: Coating roller; A scraping roller, the scraping roller and the coating roller are arranged side by side, and a gap is provided between the scraping roller and the coating roller for the slurry to pass through; and A material blocking assembly, wherein the material blocking assembly is arranged on the outer sides of the coating roller and the scraper roller, the material blocking assembly includes a support member and a material blocking member installed on the support member, the material blocking member includes a matching portion matching with the coating roller and a clamping portion matching with the scraper roller, the first end of the matching portion is connected to the first end of the clamping portion and forms an angle portion, the angle portion extends into the gap, the second end of the matching portion and the second end of the clamping portion are away from each other, so that a first angle is formed between the matching portion and the clamping portion, and the first angle can be adjusted.

2. The coating device according to claim 1, characterized in that: The material blocking member also includes: The first adjusting portion, wherein two opposite ends of the first adjusting portion are respectively connected to the matching portion and the engaging portion, and the first adjusting portion is used for multi-stage telescopic expansion to adjust the size of the first angle according to the size of the gap.

3. The coating device according to claim 2, characterized in that: The first adjustment part includes a shell, an elastic part passing through the shell, and at least two limiting parts telescopically installed on the shell; at least two limiting parts are arranged in sequence along the length direction of the elastic part, and at least two limiting parts can selectively extend relative to the shell to the deformation path of the elastic part or retract relative to the shell to be located outside the deformation path of the elastic part, so that the size of the first angle matches the gap.

4. The coating device according to claim 2, characterized in that: The first adjustment part includes a stator and a mover; the mover can be extended and retracted relative to the stator to adjust the size of the first angle to match the gap.

5. The coating device according to claim 1, characterized in that: The support member comprises: A first supporting portion, a first end of the first supporting portion being connected to the engaging portion; and A second supporting portion, wherein the second end of the second supporting portion is connected to the matching portion, and the second end of the first supporting portion is connected to the second end of the first supporting portion to form a second angle, and the second angle can be adjusted to drive the first angle between the matching portion and the locking portion to change.

6. The coating device according to claim 5, characterized in that: The support member also includes: The second adjusting part, the opposite ends of the second adjusting part are respectively connected to the first supporting part and the second supporting part, and the second adjusting part is used for multi-stage telescopic adjustment to adjust the size of the second angle according to the size of the gap, so as to drive the first angle between the matching part and the locking part to change.

7. The coating device according to claim 6, characterized in that: The second adjustment portion includes a shell, an elastic portion passing through the shell, and at least two limiting portions telescopically mounted on the shell; at least two of the limiting portions are arranged in sequence along the length direction of the elastic portion, and at least two of the limiting portions can selectively extend relative to the shell to the deformation path of the elastic portion or retract relative to the shell to be located outside the deformation path of the elastic portion, so that the size of the first angle matches the gap.

8. The coating device according to claim 6, characterized in that: The second adjustment part includes a stator and a mover; the mover can be extended and retracted relative to the stator to adjust the size of the first angle to match the gap.

9. The coating device according to claim 1, characterized in that: The matching portion includes a first surface and a second surface opposite to each other, and the first surface of the matching portion is an arc surface that contacts and matches with the coating roller; the clamping portion includes a first surface and a second surface opposite to each other, and the first surface of the clamping portion is an arc surface that contacts and matches with the scraping roller.

10. The coating device according to claim 9, characterized in that: The material blocking member also includes: A connecting portion, wherein the connecting portion extends from the second surface of the matching portion, the connecting portion and the snap-fitting portion are both located on the side where the second surface of the matching portion is located, the connecting portion is used to connect to an external structure, the matching portion, the snap-fitting portion and the connecting portion together form a slot, and the support member is disposed in the slot.

11. The coating device according to claim 10, characterized in that: The coating device further comprises a loading member, and the connecting portion is connected to the loading member.

12. The coating device according to claim 11, characterized in that: The coating device also includes: A clamping plate is configured to clamp the support member and the connecting portion to the loading member.

13. The coating device according to claim 1, characterized in that: The material blocking piece is an EVA foam plate, an acrylic plate, a plastic plate or a metal plate.

14. The coating device according to claim 1, characterized in that: The coating device further comprises a first support frame and a first connecting member, and the scraper roller is rotatably connected to the first support frame via the first connecting member; the coating device further comprises a second support frame and a second connecting member, and the coating roller is rotatably connected to the second support frame via the second connecting member.

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