Negative pressure roller assembly for cleaning the surface of a brightness enhancement film reflective film

Abstract

The utility model relates to negative pressure roller shaft technical field especially is a kind of negative pressure roller shaft assembly of light enhancement sheet reflecting film surface cleaning, including negative pressure roller assembly, first assembly seat component is rotatably connected with the front end of negative pressure roller assembly, second assembly seat component is rotatably connected with the rear end of negative pressure roller assembly, and the inside of first assembly seat component and the inside of second assembly seat component are rotatably connected with expansion seal assembly, first assembly seat component includes suction pipe, and the outside of suction pipe is fixedly connected with first rubber seal ring and ball bearing, and suction pipe and front support plate are integral fixed structure, and the inside of front support plate is provided with reserved hole, and the inside of suction pipe is provided with pipe hole, expansion seal assembly includes built-in column, and built-in column outside is fixedly connected with sealed gasbag, in the utility model, the local hole of device controls the negative pressure of negative pressure roller shaft, only in membrane contact area generates big adsorption force, reduces energy consumption and cost, improves adsorption efficiency, ensures cleaning effect.

Description

Technical Field

[0001] This utility model relates to the field of negative pressure roller technology, specifically a negative pressure roller assembly for cleaning the surface of a reflective film in a brightness enhancement film. Background Technology

[0002] Brightness enhancement film is a special optical film that is typically used to improve the brightness and contrast of display devices. It enhances the display effect by reflecting the light emitted from the backlight, reducing light scattering and absorption. This reflective film has high reflectivity, good optical uniformity and stability, and is widely used in LCD displays, backlight modules and other optical display systems to optimize optical performance and improve energy efficiency. The negative pressure roller assembly for cleaning the surface of the reflective film of the brightness enhancement film is a device specifically designed to clean the surface of the reflective film during the production process. It generates suction through negative pressure technology and uses the contact between the roller and the surface of the reflective film to adsorb and remove dust, particles and other impurities from the film surface, thereby ensuring the optical performance and quality of the reflective film in subsequent processing and use. This assembly is usually integrated into the production line and can complete the cleaning task efficiently and automatically, reducing manual intervention and improving production efficiency. In the process of adsorbing membrane material on a negative pressure roller, multiple small holes are usually evenly opened on its surface along the circumference. These small holes can generate suction under the action of a vacuum pump, thereby realizing the adsorption and fixation of membrane material and dust removal. However, this design has certain limitations. When the roller rotates, only the suction generated by the small holes that are in contact with the membrane material is effectively utilized, while the suction generated by the small holes that are not in contact with the membrane material cannot be fully utilized. This means that if you want to increase the power of the negative pressure device to obtain greater suction to remove dust more effectively, it will inevitably increase the operating cost of the equipment, because the entire negative pressure system needs to consume more energy to maintain a higher negative pressure level. Therefore, to address the above problems, a negative pressure roller assembly for cleaning the surface of a reflective film is proposed. Utility Model Content

[0003] The purpose of this invention is to provide a negative pressure roller assembly for cleaning the surface of the reflective film of the brightness enhancement film, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A negative pressure roller assembly for cleaning the surface of a reflective film in a brightness enhancement film includes a negative pressure roller assembly. A first mounting base assembly is rotatably connected to the front end of the negative pressure roller assembly, and a second mounting base assembly is rotatably connected to the rear end of the negative pressure roller assembly. An expansion sealing assembly is rotatably connected to the inner side of both the first and second mounting base assemblies. The first mounting base assembly includes an air extraction pipe, and a first rubber sealing ring and a ball bearing are fixedly connected to the outer side of the air extraction pipe. The air extraction pipe and a front support plate are integrally fixed. A reserved hole is opened on the inner side of the front support plate, and an insertion hole is opened on the inner side of the air extraction pipe. The expansion sealing assembly includes an internal column, and a sealing airbag is fixedly connected to the outer side of the internal column. An air storage chamber is opened on the inner side of the sealing airbag.

[0005] As a further optimization of this utility model, the negative pressure roller assembly includes a negative pressure roller body, with an extension cylinder fixedly connected to both the front and rear ends of the negative pressure roller body. The inner side of the extension cylinder is a hollow structure, and the inner side of the extension cylinder is connected to the inner side of the negative pressure roller body.

[0006] As a further optimization of this utility model, the second mounting base assembly includes a fixed base, and a solid column and a rear support plate are sequentially fixedly connected to the front end of the fixed base. The rear support plate has a shaft hole on its inner side.

[0007] As a further optimization of this utility model, the inner side of the front extension tube is fixedly connected to the outer side of the ball bearing, and the inner side of the front extension tube is in contact with the outer side of the first rubber sealing ring.

[0008] As a further optimization of this utility model, the solid column is fixedly connected to a bearing and a sealing ring on its outer side, the solid column is rotatably connected to the extension cylinder at the rear end through the bearing, and the sealing ring of the solid column is in contact with the extension cylinder at the rear end.

[0009] As a further optimization of this utility model, the front end of the suction pipe is fixedly connected to a mounting base, and a second rubber sealing ring is fixedly connected to the inner side of the mounting base of the suction pipe.

[0010] As a further optimization of this utility model, the outer side of the sealing airbag is attached to the inner side of the negative pressure roller body near the upper part, the built-in column is rotatably connected to the front support plate and the rear support plate respectively through bearings, and the built-in column is sealed to the front support plate and the rear support plate respectively through sealing rings.

[0011] Compared with the prior art, the beneficial effects of this utility model are: In this invention, by setting a first mounting base assembly, a second mounting base assembly, and an expansion sealing assembly, the device generates negative pressure by controlling the local holes of the negative pressure roller shaft. This achieves a large adsorption force only in the area in contact with the film when cleaning the surface of the reflective film of the brightness enhancement film, thereby effectively reducing the required power, reducing energy consumption and operating costs. At the same time, this design improves adsorption efficiency and ensures cleaning effect. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional structural diagram of the negative pressure roller assembly of this utility model; Figure 3 This utility model Figure 2 A schematic diagram of the structure at point A; Figure 4 This is a cross-sectional structural diagram of the first mounting base assembly of this utility model; Figure 5 This is a cross-sectional structural diagram of the second mounting bracket assembly of this utility model; Figure 6 This is a cross-sectional structural diagram of the expansion sealing assembly of this utility model.

[0013] In the diagram: 1. Negative pressure roller assembly; 11. Negative pressure roller body; 12. Extension cylinder; 2. First mounting base assembly; 21. Air extraction pipe; 22. First rubber sealing ring; 23. Ball bearing; 24. Front support plate; 25. Reserved hole; 26. Second rubber sealing ring; 27. Insertion hole; 3. Second mounting bracket assembly; 31. Fixed base; 32. Solid column; 33. Rear support plate; 4. Expansion sealing assembly; 41. Internal column; 42. Sealing airbag; 43. Air storage chamber. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0016] Please see Figures 1-6 This utility model provides a technical solution: A negative pressure roller assembly for cleaning the surface of a reflective film in a brightness enhancement film includes a negative pressure roller assembly 1. A first mounting base assembly 2 is rotatably connected to the front end of the negative pressure roller assembly 1, and a second mounting base assembly 3 is rotatably connected to the rear end of the negative pressure roller assembly 1. An expansion sealing assembly 4 is rotatably connected to the inner side of both the first mounting base assembly 2 and the inner side of the second mounting base assembly 3. The first mounting base assembly 2 includes an air extraction pipe 21. A first rubber sealing ring 22 and a ball bearing 23 are fixedly connected to the outer side of the air extraction pipe 21. The air extraction pipe 21 and the front support plate 24 are integrally fixed structures. A reserved hole 25 is opened on the inner side of the front support plate 24, and an insertion hole 27 is opened on the inner side of the air extraction pipe 21. The expansion sealing assembly 4 includes an internal column 41. A sealing airbag 42 is fixedly connected to the outer side of the internal column 41, and an air storage chamber 43 is opened on the inner side of the sealing airbag 42.

[0017] As a further implementation of this solution, the negative pressure roller assembly 1 includes a negative pressure roller body 11. Extension cylinders 12 are fixedly connected to both the front and rear ends of the negative pressure roller body 11. The inner side of the extension cylinder 12 is hollow and communicates with the inner side of the negative pressure roller body 11. The second mounting base assembly 3 includes a fixed base 31. A solid column 32 and a rear support plate 33 are sequentially fixedly connected to the front end of the fixed base 31. A shaft hole is opened on the inner side of the rear support plate 33. The inner side of the front extension cylinder 12 is fixedly connected to the outer side of the ball bearing 23. The inner side of the front extension cylinder 12 is in contact with the outer side of the first rubber sealing ring 22. The outer side of the solid column 32 is fixedly connected with a bearing and a sealing ring. The solid column 32 is rotatably connected to the rear extension cylinder 12 through the bearing. The sealing ring of the solid column 32 is in contact with the rear extension cylinder 12. With the above arrangement, it is convenient for the negative pressure roller assembly 1 to rotate outside the first mounting base assembly 2 and the second mounting base assembly 3, while not hindering the intake of air into the negative pressure roller body 11, ensuring sealing, preventing gas leakage, and improving the efficiency of the negative pressure system. As a further implementation of this solution, a mounting base is fixedly connected to the front end of the suction pipe 21, and a second rubber sealing ring 26 is fixedly connected to the inner side of the mounting base of the suction pipe 21. Through the above settings, it is ensured that the pipe of the vacuum pump can be smoothly inserted into the insertion hole 27 and fit against the inner side of the second rubber sealing ring 26 to achieve a seal and improve the efficiency of the negative pressure system. As a further implementation of this solution, the outer side of the sealing airbag 42 is attached to the inner side of the negative pressure roller body 11 near the upper part, and the built-in column 41 is rotatably connected to the front support plate 24 and the rear support plate 33 respectively through bearings. The built-in column 41 is sealed to the front support plate 24 and the rear support plate 33 respectively through sealing rings. Through the above settings, it is ensured that negative pressure is generated only in the area in contact with the membrane, thereby improving adsorption efficiency and reducing energy waste.

[0018] Workflow: When the negative pressure roller shaft cleans the surface of the brightness enhancement film, the mounting base and fixing base 31 of the pre-extraction pipe 21 are fixed to the bracket with bolts. The pipe of the vacuum pump is inserted into the insertion hole 27 and simultaneously abuts against the inner side of the second rubber sealing ring 26 to achieve a seal. The lower part of the negative pressure roller body 11 is in contact with the brightness enhancement film. Through the friction between the brightness enhancement film and the negative pressure roller body 11, the negative pressure roller body 11 will rotate during the conveying of the brightness enhancement film. The extension cylinder 12 is rotatably connected to the extraction pipe 21 and the solid column 32 through the bearing. At the same time, the sealing ring between the extension cylinder 12 and the extraction pipe 21 and the solid column 32 can prevent gas leakage inside the negative pressure roller body 11 and also protect the ball bearing 23. The sealing airbag 42 is attached to the inner side of the negative pressure roller body 11 near the top. When the negative pressure roller body 11 rotates, the sealing airbag 42 also rotates. The negative pressure roller body 11 squeezes the sealing airbag 42, causing the sealing airbag 42 to deform. Through the part where the sealing airbag 42 contacts the negative pressure roller body 11, the holes in the negative pressure roller body 11 are sealed. In this way, when the vacuum pump starts and pumps air into the negative pressure roller body 11 through the insertion hole 27, negative pressure will only be generated in the holes of the negative pressure roller body 11 that are far away from the sealing airbag 42. Based on the above principle, the device can control the local holes of the negative pressure roller body 11 to generate negative pressure, so as to generate a larger local adsorption force, reduce the power required to clean the reflective film of the brightness enhancement film, and thus reduce the increase in operating costs.

[0019] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A negative pressure roller assembly for cleaning the surface of a reflective film in a brightness enhancement film, comprising a negative pressure roller assembly (1), characterized in that: The front end of the negative pressure roller assembly (1) is rotatably connected to the first mounting base assembly (2), and the rear end of the negative pressure roller assembly (1) is rotatably connected to the second mounting base assembly (3). The inner side of the first mounting base assembly (2) and the inner side of the second mounting base assembly (3) are both rotatably connected to the expansion sealing assembly (4). The first mounting base assembly (2) includes an air extraction pipe (21), a first rubber sealing ring (22) and a ball bearing (23) are fixedly connected to the outside of the air extraction pipe (21), the air extraction pipe (21) and the front support plate (24) are integrally fixed structures, a reserved hole (25) is opened on the inner side of the front support plate (24), and an insertion hole (27) is opened on the inner side of the air extraction pipe (21). The expansion sealing assembly (4) includes an internal column (41), a sealing airbag (42) is fixedly connected to the outside of the internal column (41), and an air storage cavity (43) is opened on the inside of the sealing airbag (42).

2. The negative pressure roller assembly for cleaning the surface of the reflective film of the brightness enhancement film according to claim 1, characterized in that: The negative pressure roller assembly (1) includes a negative pressure roller body (11). An extension cylinder (12) is fixedly connected to both the front and rear ends of the negative pressure roller body (11). The inner side of the extension cylinder (12) is hollow, and the inner side of the extension cylinder (12) is connected to the inner side of the negative pressure roller body (11).

3. The negative pressure roller assembly for cleaning the surface of the reflective film of the brightness enhancement film according to claim 1, characterized in that: The second mounting base assembly (3) includes a fixed base (31), and a solid column (32) and a rear support plate (33) are fixedly connected to the front end of the fixed base (31) in sequence. The rear support plate (33) has a shaft hole on its inner side.

4. The negative pressure roller assembly for cleaning the surface of the reflective film of the brightness enhancement film according to claim 2, characterized in that: The inner side of the front extension tube (12) is fixedly connected to the outer side of the ball bearing (23), and the inner side of the front extension tube (12) is in contact with the outer side of the first rubber sealing ring (22).

5. The negative pressure roller assembly for cleaning the surface of the reflective film of the brightness enhancement film according to claim 3, characterized in that: The solid column (32) is fixedly connected to a bearing and a sealing ring on the outside. The solid column (32) is rotatably connected to the extension tube (12) at the rear end through the bearing. The sealing ring of the solid column (32) is in contact with the extension tube (12) at the rear end.

6. The negative pressure roller assembly for cleaning the surface of the reflective film of the brightness enhancement film according to claim 1, characterized in that: The front end of the suction pipe (21) is fixedly connected to a mounting base, and a second rubber sealing ring (26) is fixedly connected to the inner side of the mounting base of the suction pipe (21).

7. The negative pressure roller assembly for cleaning the surface of the reflective film of the brightness enhancement film according to claim 1, characterized in that: The outer side of the sealing airbag (42) is attached to the inner side of the negative pressure roller body (11) near the upper part. The built-in column (41) is rotatably connected to the front support plate (24) and the rear support plate (33) respectively through bearings. The built-in column (41) is sealed to the front support plate (24) and the rear support plate (33) respectively through sealing rings.

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