Scraper pressing plate, scraper clamp, scraper assembly and alignment film coating equipment

Abstract

The utility model discloses a scraper pressing plate, a scraper clamp, a scraper assembly and orientation film coating equipment, the scraper pressing plate is suitable for being located at one side of the circumferential surface of a glue scraping roller, the scraper pressing plate is provided with a first surface and a second surface which are oppositely arranged along the thickness direction of the scraper pressing plate, the first surface is suitable for abutting against the thickness side of a scraper, and the second surface is suitable for abutting against the thickness side of the scraper. A runner is arranged in the scraper pressing plate, the runner is provided with a glue inlet and a glue outlet, the scraper pressing plate is further provided with a third face connected between the first face and the second face, the glue outlet is formed in the third face, and the glue outlet and the second face are arranged in a spaced mode; the end, where the third face is located, of the scraper pressing plate is suitable for being matched with the scraper and the glue scraping roller to define a glue scraping groove. According to the scraper pressing plate provided by the embodiment of the utility model, the occurrence of defects such as uniformity defects of an adhesive film can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of coating, in particular to a scraper pressing plate, a scraper clamp, a scraper assembly and an oriented film coating device. Background Art

[0002] In the production process of LCDs, PI film coating is a key process, and the quality of its film formation will determine the yield and reliability of the final product. Therefore, the PI film coating process is a key control project in the manufacturing process of LCDs.

[0003] In the related art, the scraper of the scraper assembly cooperates with the scraper roller, and the scraper scrapes the glue liquid (such as PI liquid) onto the circumferential surface of the scraper roller to form a glue film (such as PI film). However, in some technologies, the structural design of the scraper assembly is not reasonable, which may affect the quality of the glue film. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a scraper pressing plate, a scraper clamp, a scraper assembly and an oriented film coating device, wherein the scraper pressing plate can reduce the occurrence of defects such as uniformity defects of the adhesive film.

[0005] In the first aspect, an embodiment of the present application provides a scraper pressure plate, which is suitable for being located on one side of the circumferential surface of a scraper roller, and has a first surface and a second surface arranged opposite to each other along the thickness direction of the scraper pressure plate, and the first surface is suitable for stopping at one side of the thickness of the scraper, and the scraper pressure plate has a flow channel, and the flow channel has a glue inlet and a glue outlet. The scraper pressure plate also has a third surface connected between the first surface and the second surface, and the glue outlet is formed on the third surface, and the glue outlet is spaced apart from the second surface; one end of the scraper pressure plate where the third surface is located is suitable for cooperating with the scraper and the scraper roller to define a scraper groove.

[0006] In the above technical scheme, the glue outlet is arranged to be immersed below the liquid level in the scraper tank, so that the glue liquid flowing out of the glue outlet flows into the scraper tank from below the liquid level in the scraper tank. This can reduce or eliminate the fluctuation of the liquid level when supplying liquid to the scraper tank, so as to reduce or eliminate the impact of the liquid level fluctuation on the scraper roller, which is beneficial to improving the uniformity of the glue film formed by the scraper on the scraper roller, and effectively reducing the occurrence of defects such as uniformity defects of the glue film, thereby improving the quality of the product.

[0007] In some embodiments of the present application, the distance between the glue outlet and the first surface in the normal direction of the first surface is z1, the minimum distance between the first surface and the second surface in the normal direction of the first surface is z2, and z1<z2 / 2.

[0008] In some embodiments of the present application, the opening area of ​​the glue inlet is larger than the opening area of ​​the glue outlet.

[0009] In some embodiments of the present application, the glue inlet and the glue outlet are both formed as long strip openings extending along the length direction of the scraper pressure plate, and the width of the glue inlet is greater than the width of the glue outlet.

[0010] In some embodiments of the present application, the width of the glue inlet is d1, 5mm≤d1≤15mm; and / or the width of the glue outlet is d2, 0.5mm≤d2≤3mm.

[0011] In some embodiments of the present application, the flow channel has a plurality of spaced apart support members, each of which is connected to two opposite side walls of the flow channel.

[0012] In some embodiments of the present application, a plurality of the support members are arranged at intervals along the length direction of the scraper plate.

[0013] In some embodiments of the present application, the distance between two adjacent support members is x, 20mm≤x≤100mm.

[0014] In some embodiments of the present application, the height of the support member in the normal direction of the second surface is h1, 1mm≤h1≤5mm; and / or the equivalent diameter of the cross-sectional shape of the support member is d, 1mm≤d≤5mm, and the cross-section of the support member is parallel to the first surface.

[0015] In some embodiments of the present application, the scraper pressing plate includes a stop portion and a mounting portion arranged in sequence along the width direction of the scraper pressing plate, the stop portion includes a first stop portion and a second stop portion, the first stop portion has the first surface, the second stop portion is located on the side of the first stop portion away from the first surface and has the second surface, the flow channel is located between the first stop portion and the second stop portion, the glue outlet is formed on the side of the stop portion away from the mounting portion, and a mounting hole is formed on the mounting portion, the mounting hole is suitable for passing a fastener, and the fastener is used to fix the scraper pressing plate to the scraper fixing seat.

[0016] In some embodiments of the present application, the glue inlet is located on a side of the second stop portion facing the mounting portion, and at least a portion of the second surface is protruding relative to the surface where the glue inlet is located in a direction away from the first surface.

[0017] In some embodiments of the present application, the scraper pressure plate is an integral piece.

[0018] In some embodiments of the present application, the first stop portion and the second stop portion are separate parts, the second stop portion includes a main body portion, the main body portion is arranged on the side of the first stop portion away from the first surface, the second stop portion also includes: a first flange portion, the first flange portion is arranged at an end of the main body portion corresponding to the glue inlet, and is bent in a direction away from the first stop portion; and / or, a second flange portion, the second flange portion is arranged at an end of the main body portion corresponding to the glue outlet, and is bent in a direction close to the first surface.

[0019] In some embodiments of the present application, the second surface is formed on a side of the main body away from the first stop portion, and at least a portion of the second surface is protruding relative to a connection position between the main body and the first flange portion in a direction away from the first surface.

[0020] In the second aspect, an embodiment of the present application provides a scraper clamp, which is formed with a clamping groove for clamping a scraper, and the clamping groove has a first clamping wall and a second clamping wall arranged opposite to each other. The scraper clamp also has a flow channel, and the flow channel has a glue inlet and a glue outlet. The portion of the scraper clamp that defines the first clamping wall is formed with the glue outlet and is suitable for cooperating with the scraper and the glue scraping roller to define the glue scraping groove.

[0021] In the above technical scheme, the portion of the scraper clamp that defines the first clamping wall is formed with a glue outlet and is suitable for cooperating with the scraper, and the glue scraping roller defines a glue scraping groove. The glue outlet can be suitable for being immersed below the liquid level in the glue scraping groove, so that the glue liquid flowing out of the glue outlet can flow into the glue scraping groove from below the liquid level in the glue scraping groove, which can reduce or eliminate the liquid level fluctuation when supplying liquid to the glue scraping groove, so as to reduce or eliminate the impact of the liquid level fluctuation on the glue scraping roller, which is beneficial to improving the uniformity of the glue film formed by the scraper on the glue scraping roller, and effectively reducing the occurrence of defects such as uniformity defects of the glue film, thereby improving the quality of the product.

[0022] In some embodiments of the present application, the scraper clamp includes a scraper pressing plate and a scraper fixing seat stacked along the clamping direction, the scraper pressing plate defines the first clamping wall, the scraper fixing seat defines the second clamping wall, the glue inlet and the glue outlet are both formed on the scraper pressing plate, and the scraper pressing plate is the scraper pressing plate of the above-mentioned first aspect embodiment of the utility model.

[0023] In a third aspect, an embodiment of the present application provides a scraper assembly, comprising a scraper and a scraper clamp according to the embodiment of the second aspect of the utility model, wherein the scraper is clamped in the clamping groove.

[0024] In the above technical solution, by adopting the above scraper fixture, the quality of the adhesive film scraped by the scraper assembly can be improved.

[0025] In the fourth aspect, an embodiment of the present application provides an oriented film coating device, comprising a liquid supply part, a glue scraper roller and a scraper assembly according to the above-mentioned third aspect embodiment of the utility model, wherein the liquid supply part can supply liquid to the glue inlet, and the scraper is adjacent to the circumferential surface of the glue scraper roller.

[0026] In the above technical solution, by adopting the above scraper assembly, the product quality of the oriented film coating equipment can be improved.

[0027] In some embodiments of the present application, the central axis of the scraper roller is horizontally arranged, the acute angle formed by the orthographic projection of the scraper on the cross section of the scraper roller and the direction of gravity is α, 45°≤α≤60°, and the cross section of the scraper roller is perpendicular to the axial direction of the scraper roller.

[0028] In some embodiments of the present application, the liquid supply part is constructed as a liquid supply pipeline, which extends along the length direction of the scraper. The liquid supply pipeline is formed with a plurality of outlets arranged at intervals, and the plurality of outlets are located on the upper side of the glue inlet.

[0029] In some embodiments of the present application, in the length direction of the scraper, the length of the scraper is greater than the length of the scraper clamp, so that both ends of the length of the scraper extend out of the scraper clamp respectively.

[0030] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0032] Figure 1 is a schematic diagram of a scraper plate provided in some embodiments of the present application;

[0033] Figure 2 yes Figure 1 A top view of the scraper plate shown;

[0034] Figure 3 yes Figure 2 The cross-sectional view along line AA is shown;

[0035] Figure 4 is a cross-sectional view of a scraper plate provided in some embodiments of the present application;

[0036] Figure 5 is another cross-sectional view of a scraper plate provided in some embodiments of the present application;

[0037] Figure 6 yes Figure 5 A partial enlarged view of the scraper plate shown;

[0038] Figure 7 is a schematic diagram of the cooperation between the scraper pressure plate and the scraper provided in some embodiments of the present application;

[0039] Figure 8 is a schematic diagram of an alignment film coating device provided in some embodiments of the present application;

[0040] Fig. 9 is another schematic diagram of an oriented film coating device provided in some embodiments of the present application;

[0041] Fig.10 is a schematic diagram of a scraper assembly and a liquid supply member provided in some embodiments of the present application;

[0042] Fig.11 This is another schematic diagram of the oriented film coating equipment provided in some embodiments of the present application.

[0043] Reference numerals:

[0044] Alignment film coating device 400, liquid supply member 301, liquid supply part 3011, scraper roller 302, pre-grinding roller 303, transfer roller 304, transfer surface 3041,

[0045] Scraper assembly 300, scraper 201,

[0046] Scraper fixture 200, scraper fixing seat 101, scraper groove 102, clamping groove 103,

[0047] Scraper plate 100,

[0048] Runner 1, glue inlet 11, glue outlet 12, slope 13

[0049] Support 2,

[0050] The stop portion 3 , the first surface 31 , the second surface 32 , the third surface 33 , the first stop portion 311 , the second stop portion 312 , the main body 3121 , the first flange portion 3122 , the second flange portion 3123 , the mounting portion 4 , and the mounting hole 41 . DETAILED DESCRIPTION

[0051] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0052] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the applicability of other processes and / or the use of other materials.

[0053] Hereinafter, with reference to the accompanying drawings, a scraper pressing plate 100 according to an embodiment of the present invention will be described.

[0054] In a first aspect, the present application embodiment provides a scraper plate 100, such as Figure 1 , Figure 4 , Figure 5 and Figure 8 As shown, the scraper pressing plate 100 is suitable for being located on one side of the circumferential surface of the scraper roller 302. The scraper pressing plate 100 has a first surface 31 and a second surface 32 which are arranged opposite to each other along the thickness direction of the scraper pressing plate. The first surface 31 is suitable for stopping at one side of the thickness of the scraper 201. The scraper pressing plate 100 has a flow channel 1 therein, and the flow channel 1 has a glue inlet 11 and a glue outlet 12. The scraper pressing plate 100 also has a third surface 33 connected between the first surface 31 and the second surface 32. The glue outlet 12 is formed on the third surface 33, and the glue outlet 12 is spaced apart from the second surface 32. One end of the scraper pressing plate 100 where the third surface 33 is located is suitable for cooperating with the scraper 201 and the scraper roller 302 to define a scraper groove 102.

[0055] Therefore, by setting one end of the scraper pressing plate 100 where the third surface 33 is located to be suitable for cooperating with the scraper 201 and the scraper roller 302 to define the scraper groove 102, the glue liquid flowing into the flow channel 1 from the inlet glue 11 flows out from the glue outlet 12 and flows into the scraper groove 102, so that the glue outlet 12 can replenish the glue liquid from a position below the liquid level of the scraper groove 102, so as to change the way in which the scraper pressing plate 100 transports liquid to the scraper groove 102, so that in the process of the scraper 201 scraping the glue liquid onto the scraper roller 302, the liquid level fluctuation in the scraper groove 102 when supplying liquid to the scraper groove 102 can be reduced or eliminated, so as to reduce or eliminate the impact of the liquid level fluctuation on the scraper roller 302, which is beneficial to improve the uniformity of the glue film formed by the scraper 201 on the scraper roller 302, effectively reduce the uniformity defects of the glue film, avoid the occurrence of mura-type defects, and thus improve the quality of products (such as liquid crystal displays, display panels, etc.). Among them, mura is a general term for uneven brightness of the display screen. Figure 1 , Figure 4and Figure 8 The lower side of the scraper plate 100 has a first surface 31, and the first surface 31 cooperates with the upper surface of the scraper 201. The upper side of the scraper plate 100 has a second surface 32, and the second surface 32 forms a non-zero angle with the first surface 31, or the second surface 32 is parallel to the first surface 31, a part of the flow channel 1 is parallel to the second surface 32, and the third surface 33 is located on the width side of the scraper plate 100. The scraper 201 is adjacent to the circumferential surface of the scraper roller 302. One end of the scraper plate 100 in the width direction and the scraper 201 and the scraper roller 302 define a scraper groove 102. The scraper groove 102 can accommodate glue liquid (such as PI liquid). When the scraper roller 302 rotates, the scraper 201 scrapes the glue liquid in the scraper groove 102 onto the circumferential surface of the scraper roller 302 to form a glue film (such as an alignment film) on the circumferential surface of the scraper roller 302.

[0056] For example, combined with Figure 5 and Figure 8 , the scraper plate 100 has a flow channel 1, and the flow channel 1 has a glue inlet 11 and a glue outlet 12. The glue inlet 11 is formed on the upper side of the scraper plate 100, and the glue outlet 12 is formed on the third surface 33 of the scraper plate 100. The third surface 33, the scraper 201 and the scraper roller 302 cooperate to define the scraper groove 102. The upper side of the scraper plate 100 is provided with a liquid supply member 301, and the liquid supply member 301 can supply liquid to the glue inlet 11. Therefore, when scraping, the liquid supply member 201 first provides glue liquid to the flow channel 1, and the glue liquid flows from the glue outlet 12 to the scraper groove 102. The scraper groove 102 contains a certain amount of glue liquid, and the glue outlet 12 is immersed below the liquid level of the scraper groove 102. The scraper roller 302 rotates, and the liquid supply member 301 continuously supplies liquid to the glue inlet 11. It can be seen that in the process of the scraper roller 302 rotating to achieve scraping, the glue liquid continues to be transported from the glue inlet 11 to the flow channel 1, and the glue liquid can flow into the scraper groove 102 from the glue outlet 12 and located below the liquid surface of the scraper groove 102. Compared with the liquid supply part 301 supplying liquid to the second surface 32, the glue liquid flows into the scraper groove 102 from the second surface 32, which can reduce or eliminate the liquid level fluctuation in the scraper groove 102, thereby reducing or eliminating the impact of the liquid level fluctuation on the circumferential surface of the scraper roller 302. When the scraper roller 302 is impacted by the liquid level fluctuation, the scraper 201 cannot scrape the impact position evenly, which is easy to cause uneven film surface. The above-mentioned setting of the present application can improve the uniformity of the thickness of the glue film formed by the scraper 201 on the circumferential surface of the scraper roller 302, effectively reduce the occurrence of defects such as uniformity of the glue film, and improve the quality of the glue film and the product and the corporate benefits.

[0057] Optionally, the position of the glue inlet 11 on the scraper plate 100 is not limited to being formed on the upper side of the scraper plate 100 , but may also be located on other sides of the scraper plate 100 .

[0058] Optionally, the shape of the third surface 33 is not limited. For example, the shape of the third surface 33 may be a curved surface or a plane, or a combination of multiple curved surfaces or planes. The curved surface may be a spherical surface or a cylindrical surface.

[0059] In the above technical scheme, the glue outlet 12 is arranged to be immersed below the liquid level in the glue scraping groove 102, so that the glue liquid flowing out of the glue outlet 12 flows into the glue scraping groove 102 from below the liquid level in the glue scraping groove 102, which can reduce or eliminate the fluctuation of the liquid level when supplying liquid to the glue scraping groove 102, so as to reduce or eliminate the impact of the liquid level fluctuation on the glue scraping roller 302, which is beneficial to improve the uniformity of the glue film formed by the scraper 201 on the glue scraping roller 302, and effectively reduce the occurrence of defects such as uniformity defects of the glue film, thereby improving the quality of the product.

[0060] Alternatively, if Figure 1 , Figure 5 and Figure 8 As shown, the glue outlet 12 is spaced apart from the first surface 31; of course, there are some other examples, such as Fig. 9 and Fig.10 As shown, the glue outlet 12 is not spaced apart from the first surface 31 .

[0061] In some embodiments of the present application, Figure 4 and Figure 8 The distance between the glue outlet 12 and the first surface 31 in the normal direction of the first surface 31 is z1, and the minimum distance between the first surface 31 and the second surface 32 in the normal direction of the first surface 31 is z2, and z1<z2 / 2.

[0062] For example, in combination Figure 4 and Figure 8 The glue outlet 12 is located on the third surface 33 of the scraper plate 100, and a scraper groove 102 is defined between one end of the third surface 33 of the scraper plate 100 and the scraper 201 and the scraper roller 302. The lower surface of the scraper plate 100 is the first surface 31, and the upper surface of the scraper plate 100 is the second surface 32. The third surface 33 is connected to the first surface 31 and the second surface 32 respectively. The distance between the glue outlet 12 and the first surface 31 in the normal direction of the first surface 31 is smaller than the distance between the second surface 32 and the first surface 31 in the normal direction of the first surface 31. 31, thus, the glue outlet 12 is located at a lower position in the glue scraping groove 102. It can be understood that the glue outlet 12 is arranged close to the scraper 201, which is beneficial to ensure that the glue outlet 12 is located below the liquid level in the glue scraping groove 102, so that the glue liquid flowing out of the glue outlet 12 can flow along the scraper 201, which can reduce the impact of the glue liquid on the liquid level of the glue scraping groove 102 when flowing, and is also beneficial to reduce the restriction on the liquid level height in the glue scraping groove 102 due to the setting of the glue outlet 12.

[0063] In addition, under the condition of the same liquid level height in the scraper groove 102, the above-mentioned arrangement is conducive to appropriately increasing the distance between the glue outlet 12 and the liquid surface in the scraper groove 102, so as to further reduce the fluctuation of the liquid surface in the scraper groove 102 caused by supplying liquid from the glue outlet 12 to the scraper groove 102.

[0064] In the above technical solution, by setting the distance between the glue outlet 12 and the first surface 31 in the normal direction of the first surface 31 to be smaller than half of the minimum distance between the second surface 32 and the first surface 31 in the normal direction of the first surface 31, the glue outlet 12 is arranged close to the scraper 201, which is beneficial to ensure that the glue outlet 12 is located below the liquid level in the glue scraping groove 102, and the glue liquid flowing out of the glue outlet 12 can flow along the scraper 201, which can reduce the impact of the glue liquid on the liquid level of the glue scraping groove 102 when flowing.

[0065] In some embodiments of the present application, Figure 4 and Figure 8 , the opening area of ​​the glue inlet 11 is larger than the opening area of ​​the glue outlet 12. Therefore, the opening area of ​​the glue inlet 11 is larger, so that the liquid supply part 301 can easily deliver glue to the glue inlet 11, and prevent the glue from flowing to other positions outside the glue inlet 11, and the glue inlet 11 can flow more glue, thereby improving the efficiency of delivering glue to the flow channel 1. At the same time, the opening area of ​​the glue outlet 12 is smaller, so that the glue outlet 12 is far away from the liquid surface of the glue scraping groove 102, which is conducive to reducing the impact of the glue on the liquid surface of the glue scraping groove 102 when the glue flows, and at the same time, it is easy to achieve a good dynamic balance between the glue supply amount and the glue consumption amount, which is conducive to making the liquid surface in the glue scraping groove 102 fluctuate within a smaller range or basically maintain a certain liquid level height.

[0066] It should be noted that the opening area of ​​the glue inlet 11 can be understood as the area corresponding to the figure surrounded by the edge of the notch of the glue inlet 11. Figure 1 , the glue inlet 11 extends along the length direction of the scraper plate 100, and the figure surrounded by the notch edge of the glue inlet 11 is a rectangle, then the opening area of ​​the glue inlet 11 is the area of ​​the rectangle. Similarly, the opening area of ​​the glue outlet 12 can be understood as the area corresponding to the figure surrounded by the notch edge of the glue outlet 12.

[0067] In some embodiments of the present application, Figure 1 The glue inlet 11 and the glue outlet 12 are both formed as long strip openings extending along the length direction of the scraper plate 100 , and the width of the glue inlet 11 is greater than the width of the glue outlet 12 .

[0068] For example, combined with Figure 1The length direction of the scraper plate 100 is parallel to the axial direction of the scraper roller 302. The scraper plate 100 and the scraper 201 define a scraper groove 102 extending along the length direction of the scraper plate 100. The glue inlet 11 and the glue outlet 12 are also long strip openings extending along the length direction of the scraper plate 100 (for example, the glue outlet 12 is formed as a slit-like long strip opening). The width of the glue inlet 11 is greater than the width of the glue outlet 12.

[0069] In the above technical solution, the glue inlet 11 and the glue outlet 12 are formed as long strip openings, so that the glue inlet 11 and the glue outlet 12 can adapt to the length of the scraper plate 100, so as to ensure that the glue liquid flowing from the glue inlet 11 into the flow channel 1 and the glue liquid flowing from the glue outlet 12 into the scraper groove 102 are uniform, which is conducive to improving the uniformity of the glue film when the scraper 201 is scraped. Secondly, the width of the glue inlet 11 is greater than the width of the glue outlet 12, so that the glue liquid can flow out slowly from the glue outlet 12, which is conducive to reducing the impact of the glue liquid on the liquid level of the scraper groove 102 when flowing.

[0070] In some embodiments of the present application, Figure 4 The width of the glue inlet 11 is d1, 5mm≤d1≤15mm; and / or the width of the glue outlet 12 is d2, 0.5mm≤d2≤3mm.

[0071] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. 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.

[0072] Optionally, the width d1 of the glue inlet 11 may be 5 mm, 8 mm, 10 mm, 12 mm, or 15 mm, etc.; the width d2 of the glue outlet 12 may be 0.5 mm, 0.7 mm, 1 mm, 1.3 mm, 1.5 mm, 2 mm, or 3 mm.

[0073] In the above technical scheme, by setting the width of the glue inlet 11 within a suitable range, the glue inlet 11 can maintain a suitable glue inlet amount to meet the production needs; by setting the width of the glue outlet 12 within a suitable range, the glue outlet 12 can maintain a suitable glue outlet amount, and at the same time, the glue outlet 12 is far away from the liquid level of the glue scraping groove 102, which is beneficial to reduce the influence of the glue liquid on the liquid level of the glue scraping groove 102.

[0074] In some embodiments of the present application, Figure 4, the flow channel 1 has a plurality of spaced support members 2, each support member 2 connecting two opposite side walls of the flow channel 1. Thus, by providing a plurality of support members 2, the structural strength of the scraper plate 100 and the stability of the flow channel 1 can be improved. Secondly, the flow channel 1 has a plurality of spaced support members 2, so that the support members 2 can have a certain barrier effect on the flow of the glue liquid in the flow channel 1, which is conducive to appropriately reducing the flow speed of the glue liquid to a certain extent, and can reduce the influence of the glue liquid flowing out of the glue outlet 12 on the liquid level of the scraper groove 102.

[0075] Optionally, a plurality of support members 2 in the flow channel 1 are arranged at equal intervals along the length direction of the scraper plate 100 .

[0076] In some embodiments of the present application, a plurality of support members 2 are spaced apart along the length direction of the glue outlet 12. Thus, by arranging a plurality of support members 2 spaced apart along the length direction of the glue outlet 12 so that there is a certain space between two adjacent support members 2 for the glue liquid to flow, it is possible to ensure that the support members 2 have a suitable support strength for the flow channel 1, thereby facilitating the smooth flow of the glue liquid.

[0077] Optionally, each support member 2 is spaced apart from the glue outlet 12, and the support member 2 is located in the flow channel 1, which can reduce the influence of the support member 2 on the flow of the glue at the glue outlet 12 to a certain extent, so as to ensure the uniformity of the glue flowing out of the glue outlet 12 in the length direction of the scraper pressure plate 100.

[0078] Optionally, a plurality of support members 2 are arranged at equal intervals along the length direction of the glue outlet 12 .

[0079] In some embodiments of the present application, the distance between two adjacent support members 2 is x, 20 mm ≤ x ≤ 100 mm.

[0080] Optionally, the distance x between two adjacent support members 2 may be 20 mm, 30 mm, 40 mm, 55 mm, 70 mm, 80 mm, 90 mm, or 100 mm, etc.

[0081] In the above technical solution, by setting the distance between two adjacent support members 2 to be within a suitable range, it is convenient for the two adjacent support members 2 to have a suitable distance to allow the glue to flow.

[0082] In some embodiments of the present application, the support member 2 is a columnar structure, and the axial ends of the support member 2 are respectively connected to the corresponding side walls of the flow channel 1, and the surface of the support member 2 on the side facing away from the glue outlet 12 is a smooth curved surface (such as an arc surface, an elliptical arc surface, etc.). Exemplarily, the support member 2 is formed into a cylindrical structure; of course, in other examples of the present application, the surface of the support member 2 on the side facing away from the glue outlet 12 can be a smooth curved surface or a structure with an angle.

[0083] In the above technical solution, by setting the surface of the side of the support member 2 facing away from the glue outlet 12 to be a smooth curved surface, the support member 2 can appropriately reduce the blocking effect of the glue liquid on the premise that the support member 2 blocks the glue liquid to a certain extent, so as to ensure the smooth flow of the glue liquid.

[0084] In some embodiments of the present application, Figure 4 , support 2( Figure 4 The dotted line in the figure is the dividing line between the support member 2 and the wall of the flow channel 1) The height in the normal direction of the second surface 32 is h1, 1mm≤h1≤5mm, so that the axial height of the support member 2 is within a suitable range, which is convenient for the flow channel 1 to have a suitable height in the axial height of the support member 2 for circulating the glue, ensuring smooth circulation of the glue in the flow channel 1; and / or, the equivalent diameter of the cross-sectional shape of the support member 2 is d, 1mm≤d≤5mm, and the cross section of the support member 2 is parallel to the second surface 32, so that the equivalent diameter of the cross-sectional shape of the support member 2 is within a suitable range, which is conducive to ensuring that the support member 2 has a suitable support strength, and at the same time, it is conducive to reducing the influence of the support member 2 on the flow of the glue. The cross-sectional shape of the support member 2 can be circular, polygonal, elliptical, semicircular, etc., and this application does not make specific restrictions.

[0085] Optionally, the support member 2 is integrally formed on the wall of the flow channel 1, or the support member 2 is manufactured separately from the flow channel 1 and fixed in the flow channel 1; the axial height h1 of the support member 2 can be 1 mm, 1.5 mm, 2 mm, 4 mm, or 5 mm, etc.; the equivalent diameter d of the support member 2 can be 1 mm, 2 mm, 3.5 mm, 4 mm or 5 mm, etc.

[0086] In some embodiments of the present application, Figure 3 The scraper pressing plate 100 includes a stop portion 3 and a mounting portion 4 ( Figure 3 The dotted line in the figure is the dividing line between the stop portion 3 and the mounting portion 4), the stop portion 3 includes a first stop portion 311 and a second stop portion 312, the first stop portion 311 has a first surface 31, the second stop portion 312 is located on the side of the first stop portion 311 away from the first surface 31 and has a second surface 32, the flow channel 1 is located between the first stop portion 311 and the second stop portion 312, the glue outlet 12 is formed on the side of the stop portion 3 away from the mounting portion 4, and the mounting portion 4 is formed with a mounting hole 41, the mounting hole 41 is suitable for inserting a fastener, and the fastener is used to fix the scraper pressing plate 100 to the scraper fixing seat 101. For example, the fastener can be inserted into the mounting hole 41 to fix the scraper pressing plate 100 on the scraper fixing seat 101 described later.

[0087] In the above technical solution, the scraper 201 is fixed by setting the mounting portion 4, and the first surface 31 of the stop portion 3 cooperates with the scraper 201 to ensure that the scraper 201 is fixed reliably and accurately. At the same time, the mounting holes 41 and the flow channel 1 are dispersedly arranged, which is beneficial to reducing the space occupied by the mounting holes 41 on the stop portion 3 and reducing the restrictions of the mounting holes 41 on the structure and size of the flow channel 1.

[0088] In some embodiments of the present application, the glue inlet 11 is located on the side of the second stop portion 312 facing the mounting portion 4, and the edge of the second stop portion 312 facing the mounting portion 4 can be used to define the glue inlet 11, or the glue inlet 11 is spaced apart from the mounting portion 4. Figure 5 , the plane where the slope 13 is located is the plane where the glue inlet 11 is located, and at least a portion of the second surface 32 is protruded relative to the surface where the glue inlet 11 is located in a direction away from the first surface 31. It can be seen that in the direction perpendicular to the surface where the glue inlet 11 is located, at least a portion of the second surface 32 is higher than the height of the surface where the glue inlet 11 is located.

[0089] Therefore, by setting at least a portion of the second surface 32 to protrude relative to the surface where the glue inlet 11 is located in a direction away from the first surface 31, when the amount of glue in the scraper groove 102 is the same, the liquid level height in the scraper groove 102 can be appropriately increased, and the maximum distance between the glue outlet 12 and the liquid surface of the scraper groove 102 can be increased, so that the scraper groove 102 can have a higher liquid level height, thereby reducing or eliminating the impact of liquid supply from the glue outlet 12 to the scraper groove 102 on the liquid surface, and further reducing or eliminating the impact of liquid level fluctuations on the scraper roller 302.

[0090] In some embodiments of the present application, the scraper plate 100 is an integrated piece, which can make the scraper plate 100 have a good structural strength, which is conducive to improving the service life of the scraper plate 100. Figure 3 , Figure 4 , Figure 5 and Figure 8 The scraper plate 100 is an integral part, a flow channel 1 is formed in the scraper plate 100, the flow channel 1 has a glue inlet 11 and a glue outlet 12, and a plurality of support members 2 are arranged in the flow channel 1, and the support members 2 are integrally formed on the wall surface of the flow channel 1. The first stop portion 311 and the second stop portion 312 of the stop portion 3 are integrally arranged.

[0091] In some embodiments of the present application, the first stop portion 311 and the second stop portion 312 are separate parts, which is convenient for simplifying the processing difficulty of the scraper pressing plate 100. In this case, the first stop portion 311 and the second stop portion 312 can be fixedly connected by assembly means. Fig. 9 and Fig.10The stop portion 3 of the scraper pressing plate 100 includes a first stop portion 311 and a second stop portion 312. The lower surface of the first stop portion 311 is formed with a first surface 31. The second stop portion 312 is arranged on the upper side of the first stop portion 311, and a flow channel 1 is defined between the first stop portion 311 and the second stop portion 312. The second stop portion 312 defines a glue inlet 11 and a glue outlet 12 at both ends of the scraper pressing plate 100 in the width direction with the first stop portion 311, respectively.

[0092] Among them, the second stop portion 312 includes a main body portion 3121, and the main body portion 3121 is arranged on the side of the first stop portion 311 away from the first surface 31. The second stop portion 312 also includes a first flange portion 3122 and / or a second flange portion 3123. The first flange portion 3122 is arranged at one end of the main body portion 3121 corresponding to the glue inlet 11, and is bent in the direction away from the first stop portion 311; and / or the second flange portion 3123 is arranged at one end of the main body portion 3121 corresponding to the glue outlet 12, and is bent in the direction close to the first surface 31.

[0093] For example, combined with Fig. 9 and Fig.10 The second stop portion 312 is disposed on the upper side of the first stop portion 311. The first stop portion 311 is connected to the mounting portion 4. The mounting portion 4 is formed with a mounting hole 41 ( Fig. 9 , Fig.10 (not shown in the figure), the mounting hole 41 is suitable for inserting a fastener, and the fastener is used to fix the scraper pressing plate 100 to the scraper fixing seat 101. For example, the fastener can be inserted into the mounting hole 41 to fix the scraper pressing plate 100 on the scraper fixing seat 101 described later. The second stop portion 312 is formed into an S-shaped structure, and the second stop portion 312 includes a main body 3121, a first flange portion 3122 and a second flange portion 3123. The first flange portion 3122 is provided at an end of the main body 3121 corresponding to the glue inlet 11, and is bent in a direction away from the first stop portion 311, so that the first flange portion 3122 can define a glue inlet 11 with a larger opening area between the first stop portion 311, so as to guide the glue flow to the glue inlet. The glue liquid 11 flows into the flow channel 1, and the second flange portion 3123 is arranged at one end of the main body portion 3121 corresponding to the glue outlet 12, and is bent toward the direction close to the first surface 31, so that the second flange portion 3123 can cooperate with the first stop portion 311 to define the glue outlet 12 arranged adjacent to the first surface 31, so that the glue liquid flowing out from the glue outlet 12 flows into the glue scraping groove 102 from the position close to the scraper 201, which can reduce the impact of the glue liquid on the liquid level of the glue scraping groove 102 when it flows.

[0094] Optionally, a support member 2 (such as a screw, etc.) is provided between the first stop portion 311 and the second stop portion 312 to ensure the connection strength between the first stop portion 311 and the second stop portion 312 and the structural strength of the scraper pressing plate 100 .

[0095] In some embodiments of the present application, Fig.10 The second surface 32 is formed on the side of the main body 3121 away from the first stop portion 311, and at least a portion of the second surface 32 is protruded relative to the connection position between the main body 3121 and the first flange portion 3122 in a direction away from the first surface 31. Fig.10 The second surface 32 is inclined relative to the first surface, and the second surface is protruded relative to the connection position between the main body portion 3121 and the first flange portion 3122 in a direction away from the first surface 31 .

[0096] Therefore, by arranging at least a portion of the second surface 32 to protrude relative to the connection position between the main body 3121 and the first flange portion 3122 in a direction away from the first surface 31, when the amount of glue in the scraper groove 102 is the same, the liquid level height in the scraper groove 102 can be appropriately increased, and the maximum distance between the glue outlet 12 and the liquid surface of the scraper groove 102 can be increased, so that the scraper groove 102 can have a higher liquid level height, thereby reducing or eliminating the influence of the liquid surface when supplying liquid from the glue outlet 12 to the scraper groove 102, and further reducing or eliminating the impact of liquid surface fluctuations on the scraper roller 302.

[0097] On the second aspect, an embodiment of the present application provides a scraper clamp 200, which is formed with a clamping groove 103 for clamping a scraper 201, and the clamping groove 103 has a first clamping wall and a second clamping wall arranged opposite to each other along a clamping direction. The scraper clamp 200 also has a flow channel 1, and the flow channel 1 has a glue inlet 11 and a glue outlet 12. The portion of the scraper clamp 200 that defines the first clamping wall is formed with a glue outlet 12 and is suitable for cooperating with the scraper 201 and the glue scraping roller 302 to define the glue scraping groove 102.

[0098] In the above technical solution, a portion of the scraper clamp 200 that defines the first clamping wall is provided with a glue outlet 12 and is suitable for cooperating with the scraper 201 and the glue scraping roller 302 to define the glue scraping groove 102, so that the glue outlet 12 is suitable for being immersed below the liquid level in the glue scraping groove 102, so that the glue liquid flowing out of the glue outlet 12 can flow into the glue scraping groove 102 from below the liquid level in the glue scraping groove 102, which can reduce or eliminate the fluctuation of the liquid level when supplying liquid to the glue scraping groove 102, so as to reduce or eliminate the impact of the liquid level fluctuation on the glue scraping roller 302, which is beneficial to improve the uniformity of the glue film formed by the scraper 201 on the glue scraping roller 302, and effectively reduce the occurrence of Mura-type defects such as uniformity defects of the glue film, thereby improving the quality of the product.

[0099] For example, combined with Figure 8 and Fig. 9 The scraper clamp 200 is formed with a clamping groove 103, and the clamping groove 103 has a first clamping wall and a second clamping wall arranged opposite to each other along the thickness direction of the scraper 201. The scraper 201 is clamped in the clamping groove 103, and the first clamping wall stops against the surface of one side of the thickness of the scraper 201, and the second clamping wall stops against the surface of the other side of the thickness of the scraper 201. The partial structure of the scraper clamp 200 that defines the first clamping wall (for example, the upper part of the structure of the scraper clamp 200 for fixing the scraper 201) is formed with a glue outlet 12, and the part of the scraper clamp 200 that defines the first clamping wall cooperates with the upper surface of the scraper 201 and the glue scraping roller 302 to define the glue scraping groove 102.

[0100] The scraper 201 is adjacent to the circumferential surface of the scraper roller 302, the scraper groove 102 contains glue liquid, the glue outlet 12 is immersed below the liquid level in the scraper groove 102, and the glue liquid is supplied from the glue outlet 12 to the scraper groove 102 through the flow channel 1 to ensure that the liquid level in the scraper groove 102 is stable and appropriate. When the scraper roller 302 rotates, the scraper 201 scrapes the glue liquid in the scraper groove 102 onto the circumferential surface of the scraper roller 302 to form a glue surface on the circumferential surface of the scraper roller 302. Thus, the glue liquid can flow into the scraper groove 102 from below the liquid surface of the scraper groove 102, thereby reducing or eliminating the influence of the glue liquid flow on the liquid surface of the scraper groove 102, and reducing or eliminating the liquid surface fluctuation of the scraper groove 102, thereby reducing or eliminating the impact of the liquid surface fluctuation on the circumferential surface of the scraper roller 302, so that the thickness of the glue film formed by the scraper 201 on the circumferential surface of the scraper roller 302 is uniform, effectively reducing the occurrence of surface defects of the glue film and the like, and improving the quality of the glue film products and the corporate benefits.

[0101] In some embodiments of the present application, Figure 8 The scraper clamp 200 includes a scraper pressing plate 100 and a scraper fixing seat 101 stacked along the clamping direction, the scraper pressing plate 100 defines a first clamping wall, the scraper fixing seat 101 defines a second clamping wall, the glue inlet 11 and the glue outlet 12 are both formed on the scraper pressing plate 100, and the scraper pressing plate 100 is the scraper pressing plate 100 of the first aspect embodiment of the utility model.

[0102] Therefore, the scraper fixture 200 cooperates with the scraper 201 to effectively reduce the occurrence of defects such as uniformity defects of the film, thereby improving the quality of the product. The scraper pressing plate 100 can be constructed in any of the following schemes: Scheme 1, combined with Figure 8 The scraper plate 100 is an integral part, and a flow channel 1 is formed in the scraper plate 100, and the flow channel 1 has a glue inlet 11 and a glue outlet 12; Solution 2, combined Fig. 9 and Fig.10The stop portion 3 of the scraper pressing plate 100 includes a first stop portion 311 and a second stop portion 312. The first stop portion 311 and the second stop portion 312 are separate parts. A first surface 31 is formed on the lower side of the first stop portion 311. The second stop portion 312 is formed into an S-like structure. The second stop portion 312 is arranged on the upper side of the first stop portion 311, and a flow channel 1 is defined between the first stop portion 311 and the second stop portion 312. The second stop portion 312 defines a glue inlet 11 and a glue outlet 12 at both ends of the scraper pressing plate 100 in the width direction with the first stop portion 311, respectively.

[0103] In the above technical solution, by setting the scraper pressing plate 100 and the scraper fixing seat 101 to cooperate with each other to fix the scraper 201, the installation stability of the scraper 201 can be improved, the processing convenience of the scraper clamp 200 can be improved, and the disassembly and assembly of the scraper 201 can be facilitated.

[0104] Alternatively, the entire flow channel 1 may be formed on the scraper plate 100; or, a portion of the flow channel 1 may be formed on the scraper plate 100, and a portion of the flow channel 1 may also be formed on the scraper holder 101. It can be seen that the glue inlet 11 may be formed on the scraper plate 100 or the scraper holder 101.

[0105] In a third aspect, an embodiment of the present application provides a scraper assembly 300 , comprising a scraper 201 and a scraper clamp 200 according to the embodiment of the second aspect of the utility model, wherein the scraper 201 is clamped in a clamping groove 103 .

[0106] In the above technical solution, by adopting the above scraper fixture 200, the quality of the adhesive film scraped by the scraper assembly 300 can be improved.

[0107] Optionally, the scraper fixture 200 may be a metal part (such as an aluminum alloy part), and the scraper 201 may be a plastic part (such as high-strength PET).

[0108] In the fourth aspect, an embodiment of the present application provides an oriented film coating device 400, including a liquid supply part 301, a glue scraper roller 302 and a scraper assembly 300 according to the above-mentioned third aspect embodiment of the utility model, the liquid supply part 301 can supply liquid to the glue inlet 11, and the scraper 201 is adjacent to the circumferential surface of the glue scraper roller 302.

[0109] In the above technical solution, by adopting the above scraper assembly 300, the quality of the product produced by the alignment film coating device 400 can be improved.

[0110] Optionally, combined Figure 8The liquid supply part 301 has a liquid supply portion 3011 (such as a PI needle), and the liquid supply portion 3011 cooperates with the glue inlet 11, so that the liquid supply part 301 can stably deliver the glue liquid to the glue inlet 11 through the liquid supply portion 3011. The shortest distance between the end of the liquid supply part 3011 close to the glue inlet 11 and the circumferential surface of the glue scraping roller 302 is y, 5mm≤y≤100mm, so that the shortest distance between the end of the liquid supply part 3011 close to the glue inlet 11 and the circumferential surface of the glue scraping roller 302 is within a suitable range, which is conducive to reducing the flow rate of the glue liquid flowing from the liquid supply part 301 to the glue outlet 12, and facilitating reducing the influence of the glue liquid flow on the liquid level of the glue scraping groove 102. Optionally, the shortest distance y between one end of the liquid supply portion 3011 close to the glue inlet 11 and the circumferential surface of the glue scraping roller 302 may be 5 mm, 10 mm, 30 mm, 50 mm, 80 mm, or 100 mm.

[0111] Optionally, combined Fig.11 The oriented film coating equipment 400 also includes a pre-grinding roller 303 (such as a D roller, a rubber part). The pre-grinding roller 303 is located on the upstream side of the glue-coating direction of the scraping roller 302. The pre-grinding roller 303 cooperates with the scraping roller 302 and the pre-grinding roller 303 can pre-treat the circumferential surface of the scraping roller 302 to ensure the cleanliness of the circumferential surface of the scraping roller 302, which is beneficial to reduce the occurrence of surface defects (Mura type) on the scraping roller 302 after scraping by the scraper 201, and improve the thickness uniformity of the film.

[0112] Optionally, combined Fig.11 The oriented film coating device 400 also includes a transfer roller 304 (e.g., a plate body), the circumferential surface of the transfer roller 304 is configured as a transfer surface 3041 (e.g., an APR surface or an APR plate, which is made of photosensitive resin and PET film as main raw materials and processed by UV exposure), the transfer roller 304 is located on the downstream side of the coating direction of the scraper roller 302, the transfer roller 304 cooperates with the scraper roller 302, the scraper roller 302 can transfer the film to the transfer surface 3041, and the transfer roller 304 can transfer the film to the product; a product placement area is formed on the machine platform of the oriented film coating device 400, and the product placement area has a liftable support structure, the support structure includes a plurality of spaced support members, the support members rise to a surface protruding from the machine platform, the material taking structure can place the product on the support structure and separate it from the product through the gaps between the plurality of support members, and then the support members retract, the product is carried on the machine platform surface, and the transfer roller 304 realizes the transfer of the film by rolling on the product surface.

[0113] For example, combined with Figure 8 and Fig.11The scraper assembly 300 includes a scraper clamp 200 and a scraper 201. The scraper clamp 200 includes a scraper pressing plate 100 and a scraper fixing seat 101. A scraper groove 102 is defined between the scraper pressing plate 100 and the scraper 201, and the scraper pressing plate 100 is formed with a flow channel 1. The flow channel 1 has a glue inlet 11 and a glue outlet 12. The glue inlet 11 is located on the upper side of the scraper pressing plate 100, and the glue outlet 12 is immersed below the liquid level in the scraper groove 102. The liquid supply part 301 is located on the upper side of the glue inlet 11 and the liquid supply part 301 moves back and forth along the length direction of the scraper pressing plate 100 to supply glue to the glue inlet 11. The scraper 201 is adjacent to the circumferential surface of the scraper roller 302. The scraper 201 scrapes the glue onto the circumferential surface of the scraper roller 302 as the scraper roller 302 rotates.

[0114] Among them, the oriented film coating equipment 400 also includes a pre-grinding roller 303 and a transfer roller 304. In the glue coating direction of the scraper roller 302 (for example, the rotation direction of the scraper roller 302), the pre-grinding roller 303 is located on the upstream side of the glue coating direction of the scraper roller 302, and the transfer roller 304 is located on the downstream side of the glue coating direction of the scraper roller 302. The pre-grinding roller 303 can pre-grind the circumferential surface of the scraper roller 302 to prepare for the scraping of the scraper 201. The scraper 201 scrapes on the circumferential surface of the scraper roller 302 to form a glue film. The scraper roller 302 transfers the glue film to the transfer surface 3041 of the transfer roller 304, and the transfer surface 3041 releases the glue film to the corresponding product (for example, a display panel).

[0115] Optionally, in some embodiments, the oriented film coating device 400 includes a scraper assembly 300, a liquid supply part 301, a glue scraper roller 302 and a transfer roller 304 (excluding the pre-grinding roller 303), the liquid supply part 301 supplies liquid to the glue scraper groove 102 of the scraper assembly 300, the scraper assembly 300 cooperates with the glue scraper roller 302, the scraper 201 scrapes the glue onto the circumferential surface of the glue scraper roller 302 to form a glue film, the glue scraper roller 302 cooperates with the transfer roller 304 to transfer the glue film to the transfer surface 3041 of the transfer roller 304, and the transfer surface 3041 releases the glue film onto the corresponding product. For example, the basic principle of coating a rubber film (such as a PI film) of an oriented film coating device 400 (in a Roller Coater manner) is mainly divided into five steps: 1. Pressurize the liquid supply part 301 to supply the rubber liquid to the rubber inlet 11, and the rubber liquid in the flow channel 1 flows into the rubber scraping groove 102 from the rubber outlet 12, and the rubber liquid is kept at a suitable liquid level; 2. The rubber scraping roller 302 rotates, and the scraper 201 evenly scrapes the rubber liquid in the rubber scraping groove 102 onto the circumferential surface of the rubber scraping roller 302; 3. The rubber scraping roller 302 is squeezed and matched with the transfer roller 304, and the rubber scraping roller 302 evenly transfers the rubber film to the circumferential surface (transfer surface 3041) of the transfer roller 304; 4. The transfer roller 304 is squeezed and matched with the product substrate, and the transfer roller 304 evenly transfers the rubber film to the product substrate; 5. Repeat the above steps to continue production.

[0116] Therefore, by setting the glue outlet 12 to be immersed below the liquid level in the glue scraping tank 102, it is possible to effectively reduce the uniformity defects of the glue film and improve the film surface effect. At the same time, the use rate and use time of the pre-grinding roller 303 can be reduced, thereby reducing the loss of the pre-grinding roller 303, the maintenance cost (such as replacement, cleaning, aging, etc. of the pre-grinding roller 303) and the labor cost, that is, it is possible to reduce the operating cost and improve the business efficiency of the enterprise.

[0117] In some technologies, the liquid supply part is located on the upper side of the scraper groove, and the liquid supply part reciprocates along the length direction of the scraper plate to directly supply liquid into the scraper groove. When the liquid supply part supplies liquid, it will apply a certain pressure to the glue liquid, and the glue liquid will flow directly from the upper side of the scraper groove into the scraper groove. This liquid supply method is similar to directly supplying liquid into a test tube. The increase in the liquid level in the test tube will be accompanied by violent fluctuations in the liquid surface. It can be seen that the glue liquid will cause the liquid level of the scraper groove to fluctuate and impact the circumferential surface of the scraper roller. The scraper cooperates with the circumferential surface of the scraper roller to scrape the glue liquid onto the circumferential surface of the scraper roller, but the impact on the circumferential surface of the scraper roller will cause defects such as defects in the glue film (such as oblique Mura), and will cause the film surface of the transferred product (panel) to be uneven.

[0118] In the embodiment of the present application, by setting the flow channel 1 in the scraper fixture 200 and the glue outlet 12 being suitable for being immersed below the liquid level in the scraper groove 102, the liquid supply method and path of the liquid supply part 301 to the scraper groove 102 can be changed, so that the glue liquid flows into the scraper groove 102 from below the liquid level of the scraper groove 102 through the flow channel 1. For example, the liquid supply method of the embodiment of the present application is similar to supplying liquid to one end of a U-shaped tube, and the liquid level at the other end of the U-shaped tube will slowly rise, and the liquid level will hardly fluctuate. It can be seen that the influence of the liquid supply part 301 on the liquid level of the scraper groove 102 when supplying liquid can be eliminated, that is, the impact of the liquid level fluctuation generated by the liquid supply part 301 when supplying liquid on the circumferential surface of the scraper roller 302 can be eliminated, thereby effectively reducing the surface defects of the glue film, and the film surface thickness of the transferred product is uniform.

[0119] In some embodiments of the present application, Figure 8 The central axis of the scraper roller 302 is set horizontally, the acute angle formed by the orthographic projection of the scraper 201 on the cross section of the scraper roller 302 and the gravity direction is α, 45°≤α≤60°, and the cross section of the scraper roller 302 is perpendicular to the central axis of the scraper roller 302.

[0120] Optionally, the acute angle α formed by the orthographic projection of the scraper 201 and the gravity direction may be 45°, 50°, 55°, or 60°.

[0121] In the above technical solution, by setting the angle between the orthographic projection of the scraper 201 and the vertical direction within a reasonable range, the scraping effect of the scraper 201 can be improved and the uniformity of the adhesive film can be improved.

[0122] In some embodiments of the present application, the liquid supply part 301 is constructed as a liquid supply pipeline, which extends along the length direction of the scraper 201 and has multiple outlets arranged at intervals. The multiple outlets are located on the upper side of the glue inlet 11.

[0123] For example, the liquid supply part 301 is constructed as a liquid supply pipeline, which is located on the upper side of the scraper assembly 300. The liquid supply pipeline is formed with a plurality of outlets arranged at equal intervals. A glue inlet 11 is formed on the upper side of the scraper clamp 200. The plurality of outlets are located on the upper side of the glue inlet 11. The glue in the liquid supply pipeline drips into the glue inlet 11 through the plurality of outlets, which can further reduce the flow velocity of the glue to reduce the influence of the glue flow on the liquid level of the scraper groove 102, and can improve the uniformity of the glue flowing into the glue inlet 11.

[0124] In the above technical solution, the liquid supply part 301 is configured as a liquid supply pipeline and extends along the length direction of the scraper 201, so that the liquid supply pipeline is adapted to the glue inlet 11, and the liquid supply pipeline adopts a dripping glue supply method to improve the uniformity of the glue flowing to the glue scraper groove 102, and the glue supply flow rate is slow and has little effect on the liquid level of the glue scraper groove 102, thereby improving the uniformity of the glue film.

[0125] In some embodiments of the present application, Figure 7 In the length direction of the scraper 201, the length of the scraper 201 is greater than the length of the scraper fixture 200, so that the two ends of the length of the scraper 201 extend out of the scraper fixture 200. In this way, the scraper 201 can have a suitable length to be fixedly matched with the scraper fixture 200, and at the same time, it is helpful to reduce the amount of the glue in the scraper groove 102 overflowing from the two ends of the length of the scraper 201 to the back side of the scraper 201, thereby improving the utilization rate of the glue.

[0126] In the description of the present utility model, it should be understood that the terms "center", "length", "width", "thickness", "up", "down", "vertical", "horizontal", "inside", "outside", "axial" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0127] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0128] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0129] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A scraper pressure plate, characterized in that: The scraper pressure plate is suitable for being located on one side of the circumferential surface of the scraper roller. The scraper pressure plate has a first surface and a second surface arranged opposite to each other along the thickness direction of the scraper pressure plate. The first surface is suitable for stopping at one side of the thickness of the scraper. The scraper pressure plate has a flow channel, and the flow channel has a glue inlet and a glue outlet. The scraper pressure plate also has a third surface connected between the first surface and the second surface, and the glue outlet is formed on the third surface, and the glue outlet is spaced apart from the second surface. One end of the scraper pressure plate where the third surface is located is suitable for cooperating with the scraper and the scraper roller to define a scraper groove.

2. The scraper pressure plate according to claim 1, characterized in that: The distance between the glue outlet and the first surface in the normal direction of the first surface is z1, and the minimum distance between the first surface and the second surface in the normal direction of the first surface is z2, and z1<z2 / 2.

3. The scraper plate according to claim 1, characterized in that: The opening area of ​​the glue inlet is larger than the opening area of ​​the glue outlet.

4. The scraper pressure plate according to claim 3, characterized in that: The glue inlet and the glue outlet are both formed as long strip openings extending along the length direction of the scraper pressing plate, and the width of the glue inlet is greater than the width of the glue outlet.

5. The scraper pressing plate according to claim 4, characterized in that: The width of the glue inlet is d1, 5mm≤d1≤15mm; and / or, The width of the glue outlet is d2, 0.5mm≤d2≤3mm.

6. The scraper plate according to claim 1, characterized in that: The flow channel is provided with a plurality of spaced apart support members, each of which is connected to two opposite side walls of the flow channel.

7. The scraper pressing plate according to claim 6, characterized in that: A plurality of the support members are arranged at intervals along the length direction of the scraper pressing plate.

8. The scraper pressing plate according to claim 7, characterized in that: The distance between two adjacent support members is x, 20mm≤x≤100mm.

9. The scraper pressing plate according to claim 6, characterized in that: The height of the support member in the normal direction of the second surface is h1, 1mm≤h1≤5mm; and / or, The equivalent diameter of the cross-sectional shape of the support member is d, 1mm≤d≤5mm, and the cross-sectional shape of the support member is parallel to the first surface.

10. The scraper plate according to claim 1, characterized in that: The scraper pressing plate includes a stop portion and a mounting portion which are sequentially arranged along the width direction of the scraper pressing plate, the stop portion includes a first stop portion and a second stop portion, the first stop portion has the first surface, the second stop portion is located on the side of the first stop portion away from the first surface and has the second surface, the flow channel is located between the first stop portion and the second stop portion, the glue outlet is formed on the side of the stop portion away from the mounting portion, a mounting hole is formed on the mounting portion, the mounting hole is suitable for inserting a fastener, and the fastener is used to fix the scraper pressing plate to the scraper fixing seat.

11. The scraper plate according to claim 10, characterized in that: The glue inlet is located on a side of the second stop portion facing the mounting portion, and at least a portion of the second surface is protruded relative to the surface where the glue inlet is located, facing a direction away from the first surface.

12. The scraper pressure plate according to any one of claims 1 to 11, characterized in that: The scraper pressing plate is an integral part.

13. The scraper plate according to claim 10, characterized in that: The first stop portion and the second stop portion are separate parts, the second stop portion includes a main body, and the main body is arranged on a side of the first stop portion away from the first surface. The second stop portion further includes: a first flange portion, the first flange portion being provided at an end of the main body portion corresponding to the glue inlet and being bent in a direction away from the first stop portion; and / or The second flange portion is arranged at an end of the main body corresponding to the glue outlet and is bent toward a direction close to the first surface.

14. The scraper plate according to claim 13, characterized in that: The second surface is formed on a side of the main body away from the first stop portion, and at least a portion of the second surface is protruded relative to a connection position between the main body and the first flange portion in a direction away from the first surface.

15. A scraper fixture, characterized in that: The scraper clamp is formed with a clamping groove for clamping the scraper, and the clamping groove has a first clamping wall and a second clamping wall arranged opposite to each other. The scraper clamp also has a flow channel, and the flow channel has a glue inlet and a glue outlet. The portion of the scraper clamp that defines the first clamping wall is formed with the glue outlet and is suitable for cooperating with the scraper and the glue scraping roller to define the glue scraping groove.

16. The scraper fixture according to claim 15, characterized in that: The scraper clamp includes a scraper pressing plate and a scraper fixing seat stacked along the clamping direction, the scraper pressing plate defines the first clamping wall, the scraper fixing seat defines the second clamping wall, the glue inlet and the glue outlet are both formed on the scraper pressing plate, and the scraper pressing plate is the scraper pressing plate described in any one of claims 1-14.

17. A scraper assembly, characterized in that: It comprises a scraper and a scraper clamp according to claim 15 or 16, wherein the scraper is clamped in the clamping groove.

18. An oriented film coating device, characterized in that: It comprises a liquid supply part, a rubber scraping roller and a scraper assembly according to claim 17, wherein the liquid supply part can supply liquid to the rubber inlet, and the scraper is adjacent to the circumferential surface of the rubber scraping roller.

19. The oriented film coating device according to claim 18, characterized in that: The central axis of the scraper roller is arranged horizontally, the acute angle formed by the orthographic projection of the scraper on the cross section of the scraper roller and the gravity direction is α, 45°≤α≤60°, and the cross section of the scraper roller is perpendicular to the axial direction of the scraper roller.

20. The oriented film coating device according to claim 18, characterized in that: The liquid supply part is constructed as a liquid supply pipeline, which extends along the length direction of the scraper. The liquid supply pipeline is formed with a plurality of outlets arranged at intervals, and the plurality of outlets are located on the upper side of the glue inlet.

21. The oriented film coating device according to any one of claims 18 to 20, characterized in that: In the length direction of the scraper, the length of the scraper is greater than the length of the scraper clamp, so that both ends of the length of the scraper extend out of the scraper clamp respectively.

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