An edge dusting brush assembly for a brightness enhancement film

CN224926567UActive Publication Date: 2026-11-03QINGDAO NANJIN OPTOELECTRONICS CO LTD
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Patent Information

Application Number
CN202522642743.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-12
Publication Date
2026-11-03
Estimated Expiration
2035-12-12

AI Technical Summary

Technical Problem

现有的除尘技术在面对矩形体增光片的多面除尘需求时,容易出现清洁死角,导致部分边缘区域的灰尘和杂质无法被完全清除,影响增光片的整体清洁效果和使用性能。

Method used

An edge dust removal brush assembly was designed, comprising a drive component, an auxiliary fixing component, and a fixed rotating component. The rotation and fixing of the brightening sheet are achieved by servo motor drive and magnetic attraction of permanent magnet plate. Combined with the coordinated work of multiple conveying devices and brushes, it ensures comprehensive cleaning of the four sides and two edges.

Benefits of technology

It achieves efficient and comprehensive cleaning of the four sides and two edges of the rectangular brightness enhancement sheet, avoiding cleaning dead corners, reducing the labor intensity of operators, improving cleaning efficiency and overall cleaning effect, and ensuring the subsequent performance of the brightness enhancement sheet.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to dust removal brush subassembly technical field especially is a kind of edge dust removal brush subassembly of luminous sheet, including dust removal brush subassembly, dust removal brush subassembly bottom end is fixedly connected with drive assembly, drive assembly top end is fixedly connected with auxiliary fixed component, drive assembly one side is fixedly connected with first fixed rotating component, drive assembly includes bottom plate, bottom plate top end is fixedly connected with vertical board, bottom plate one side is fixedly connected with U-shaped plate, U-shaped plate inboard is fixedly connected with servo motor, servo motor main shaft end is fixedly connected with first permanent magnet plate, bottom plate upper end is installed with third conveyor, first fixed rotating component includes second permanent magnet plate, second permanent magnet plate one side is fixedly connected with sliding type spring telescopic link, in the utility model, device efficiently and comprehensively clean luminous sheet four around and two sides edges, without repeating fixed, avoid dead angle, reduce labour intensity, improve cleaning efficiency.
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Description

Technical Field

[0001] This utility model relates to the technical field of dust removal brush components, specifically to an edge dust removal brush component for a brightening sheet. Background Technology

[0002] Brightness enhancer is an optical thin-film component used to improve the brightness and contrast of display devices. It is usually installed on the surface of liquid crystal displays, backlight modules or other display devices. It uses a special optical structure to refract and focus light, guiding the light emitted by the backlight to the viewer's eye more efficiently, thereby enhancing the brightness and clarity of the displayed image, while reducing light scattering and loss. Brightness enhancer can reduce energy consumption while improving display effects. It is widely used in televisions, computer monitors, mobile phone screens and other fields, and is an indispensable key component in modern display technology. During the production process, the edges of the brightness enhancement film need to be cleaned of dust. This is because if there is too much dust in the edge area, it may fall off during assembly or use and enter the display module, thereby affecting the performance of other optical components. The edge dust removal brush assembly of the brightness enhancement film is a device specifically designed to clean the edges of the brightness enhancement film. It is usually installed on the transmission path or fixed frame of the brightness enhancement film. In the process of edge dust removal for rectangular brightness enhancement sheets, the dust removal work becomes relatively complex because all four sides and two surfaces of the sheet need to be thoroughly cleaned. Existing dust removal technologies often have certain limitations when facing such multi-faceted dust removal needs. Specifically, it is difficult to quickly and comprehensively clean the edges of the brightness enhancement sheet in a short period of time. In this case, the dust removal efficiency is low, and cleaning dead corners are easy to appear, resulting in dust and impurities in some edge areas not being completely removed, thus affecting the overall cleaning effect and subsequent performance of the brightness enhancement sheet. Therefore, an edge dust removal brush assembly for brightness enhancement sheets is proposed to address the above problems. Utility Model Content

[0003] The purpose of this invention is to provide an edge dust removal brush assembly for a brightening film, in order to solve the problem that existing dust removal technologies are prone to creating cleaning dead zones when facing such multi-faceted dust removal needs, resulting in dust and impurities in some edge areas not being completely removed, thus affecting the overall cleaning effect and subsequent performance of the brightening film.

[0004] To achieve the above objectives, this utility model provides the following technical solution: An edge dust removal brush assembly for a brightness enhancement film includes a dust removal brush assembly, a driving assembly fixedly connected to the bottom end of the dust removal brush assembly, an auxiliary fixing assembly fixedly connected to the top end of the driving assembly, a first fixed rotating assembly fixedly connected to one side of the driving assembly, the driving assembly including a base plate, a vertical plate fixedly connected to the top end of the base plate, a U-shaped plate fixedly connected to one side of the base plate, a servo motor fixedly connected to the inner side of the U-shaped plate, a first permanent magnet plate fixedly connected to the end of the servo motor spindle, a third conveying device mounted on the upper end of the base plate, the first fixed rotating assembly including a second permanent magnet plate, a sliding spring telescopic rod fixedly connected to one side of the second permanent magnet plate, a support plate rotatably connected to the outer side of the sliding spring telescopic rod, a friction block fixedly connected to one side of the support plate, a fixed base fixedly connected to the end of the support plate away from the friction block, and the bottom end of the fixed base fixedly connected to the top end of the third conveying device.

[0005] As a further optimization of this utility model, the dust removal brush assembly includes a first conveying device, a brush is fixedly connected to the outside of the conveyor belt of the first conveying device, and the first conveying device is fixedly connected to the top of the U-shaped plate through a conveying bracket.

[0006] As a further optimization of this utility model, the conveyor belt of the first conveyor device is flush with the top of the third conveyor device, the number of dust removal brush assemblies is four, the dust removal brush assemblies are distributed at the left and right ends of the third conveyor device, the top of the conveyor bracket of the upper dust removal brush assembly is fixedly connected to the bottom of the moving plate, and the upper dust removal brush assembly is distributed at the left and right ends of the second conveyor device.

[0007] As a further optimization of this utility model, the auxiliary fixing component includes a top plate, an electric telescopic rod and a guide column are fixedly connected to the bottom end of the top plate, a movable plate is fixedly connected to the bottom end of the electric telescopic rod, a guide plate is slidably connected to the outside of the guide column, a second conveying device is installed at the lower end of the movable plate, and a second fixed rotating component is fixedly connected to the bottom end of the second conveying device.

[0008] As a further optimization of this utility model, the bottom end of the top plate is fixedly connected to the top end of the vertical plate, a sliding hole is provided on the inner side of the guide plate, the outer side of the guide column is slidably connected to the inner side of the sliding hole of the guide plate, the second conveying device is fixedly connected to the bottom end of the moving plate through a conveying bracket, and the structure of the second fixed rotating assembly is the same as the structure of the first fixed rotating assembly.

[0009] As a further optimization of this utility model, the bottom end of the third conveying device is fixedly connected to the base plate via a conveying bracket, and the first permanent magnet plate is vertically aligned with the first fixed rotating assembly.

[0010] As a further optimization of this utility model, the following features are provided: a gap is provided between the bottom end of the second permanent magnet plate and the top end of the friction block; a shaft hole is provided on the inner side of the support disk; a bearing is fixed inside the shaft hole of the support disk; the inner side of the bearing of the support disk is fixedly connected to the outer side of the sliding spring telescopic rod; and the first fixed rotating assembly and the second fixed rotating assembly are aligned vertically.

[0011] Compared with the prior art, the beneficial effects of this utility model are: In this invention, through the provision of auxiliary fixing components, driving components, and a first fixing and rotating component, the device achieves efficient and comprehensive cleaning of the four sides and two edges of a rectangular brightness enhancement film. During the cleaning process, comprehensive cleaning can be completed without repeated fixing, effectively avoiding cleaning dead corners and ensuring the cleanliness of the edges of the brightness enhancement film. At the same time, the device significantly reduces the labor intensity of operators, improves cleaning efficiency, enhances the overall cleaning effect and subsequent performance of the brightness enhancement film, and provides a reliable guarantee for the production of display devices. 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 view of the overall structure of this utility model; Figure 3 This is an exploded structural diagram of the entire utility model; Figure 4 This is a schematic diagram of the dust removal brush assembly structure of this utility model; Figure 5 This is a schematic diagram of the auxiliary fixing component structure of this utility model; Figure 6 This is a schematic diagram of the first fixed rotating component of this utility model; Figure 7 This is a schematic diagram of the drive component structure of this utility model.

[0013] In the diagram: 1. Dust removal brush assembly; 11. First conveying device; 12. Brush; 2. Auxiliary fixing components; 21. Top plate; 22. Electric telescopic rod; 23. Guide column; 24. Guide plate; 25. Moving plate; 26. Second conveying device; 27. Second fixed rotating assembly; 3. Drive assembly; 31. Base plate; 32. Vertical plate; 33. U-shaped plate; 34. Servo motor; 35. First permanent magnet plate; 36. Third conveying device; 4. First fixed rotating assembly; 41. Second permanent magnet plate; 42. Sliding spring telescopic rod; 43. Support plate; 44. Friction block; 45. Fixed base. 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 Figure 1-7 This utility model provides a technical solution: An edge dust removal brush assembly for a brightening film includes a dust removal brush assembly 1. A drive assembly 3 is fixedly connected to the bottom of the dust removal brush assembly 1, and an auxiliary fixing assembly 2 is fixedly connected to the top of the drive assembly 3. A first fixed rotating assembly 4 is fixedly connected to one side of the drive assembly 3. The drive assembly 3 includes a base plate 31, a vertical plate 32 is fixedly connected to the top of the base plate 31, a U-shaped plate 33 is fixedly connected to one side of the base plate 31, a servo motor 34 is fixedly connected to the inner side of the U-shaped plate 33, a first permanent magnet plate 35 is fixedly connected to the end of the main shaft of the servo motor 34, and a third conveying device 36 is installed on the upper end of the base plate 31. The first fixed rotating assembly 4 includes a second permanent magnet plate 41, a sliding spring telescopic rod 42 is fixedly connected to one side of the second permanent magnet plate 41, a support plate 43 is rotatably connected to the outer side of the sliding spring telescopic rod 42, a friction block 44 is fixedly connected to one side of the support plate 43, and a fixed base 45 is fixedly connected to the end of the support plate 43 away from the friction block 44. The bottom end of the fixed base 45 is fixedly connected to the top of the third conveying device 36.

[0017] As a further implementation of this solution, the dust removal brush assembly 1 includes a first conveying device 11. A brush 12 is fixedly connected to the outer side of the conveyor belt of the first conveying device 11. The first conveying device 11 is fixedly connected to the top of the U-shaped plate 33 through a conveying bracket. The conveyor belt of the first conveying device 11 is flush with the top of the third conveying device 36. There are four dust removal brush assemblies 1. The dust removal brush assemblies 1 are distributed at the left and right ends of the third conveying device 36. The top of the conveying bracket of the upper dust removal brush assembly 1 is fixedly connected to the bottom of the moving plate 25. The upper dust removal brush assembly 1 is distributed at the left and right ends of the second conveying device 26. Through this arrangement, the brightening film can be cleaned evenly during the transmission process. The arrangement of four dust removal brush assemblies 1 ensures the comprehensiveness of cleaning. The fixed connection between the conveying bracket and the moving plate 25 and the distribution at the left and right ends of the second conveying device 26 further improve the stability and cleaning efficiency of the device and avoid the problem of incomplete cleaning caused by structural instability. As a further implementation of this solution, the auxiliary fixing component 2 includes a top plate 21. An electric telescopic rod 22 and a guide column 23 are fixedly connected to the bottom end of the top plate 21. A movable plate 25 is fixedly connected to the bottom end of the electric telescopic rod 22. A guide plate 24 is slidably connected to the outer side of the guide column 23. A second conveying device 26 is installed at the lower end of the movable plate 25. A second fixed rotating component 27 is fixedly connected to the bottom end of the second conveying device 26. The bottom end of the top plate 21 is fixedly connected to the top end of the upright plate 32. A sliding hole is provided on the inner side of the guide plate 24. The outer side of the guide column 23 is slidably connected to the inner side of the sliding hole of the guide plate 24. The second conveying device... 26 is fixedly connected to the bottom of the moving plate 25 via the conveying bracket. The structure of the second fixed rotating component 27 is the same as that of the first fixed rotating component 4. This structure design enables the auxiliary fixing component 2 to effectively control the up and down movement of the second conveying device 26 and the second fixed rotating component 27. The sliding connection between the guide post 23 and the guide plate 24 limits the movement of the second conveying device 26, ensuring the stability of the second conveying device 26 during movement. This improves the reliability of fixing and cleaning the brightening film and avoids cleaning dead corners caused by unstable movement. As a further implementation of this solution, the bottom end of the third conveying device 36 is fixedly connected to the base plate 31 via a conveying bracket. The first permanent magnet plate 35 is vertically aligned with the first fixed rotating assembly 4. A gap is provided between the bottom end of the second permanent magnet plate 41 and the top end of the friction block 44. A shaft hole is opened on the inner side of the support disk 43, and a bearing is fixed inside the shaft hole of the support disk 43. The inner side of the bearing of the support disk 43 is fixedly connected to the outer side of the sliding spring telescopic rod 42. The first fixed rotating assembly 4 and the second fixed rotating assembly 27 are vertically aligned. Through this arrangement, the first permanent magnet plate 35 can be rotated by the servo motor 34. The magnetic attraction between the iron plate 35 and the second permanent magnet plate 41 drives the second permanent magnet plate 41 to rotate, thereby rotating the brightening film. The spacing design between the second permanent magnet plate 41 and the friction block 44, as well as the bearing connection on the inner side of the support plate 43, allows the sliding spring telescopic rod 42 to rotate flexibly, thus better adapting to the shape and size of the brightening film during the cleaning process, improving the flexibility and adaptability of cleaning. At the same time, the vertical alignment design of the first fixed rotating component 4 and the second fixed rotating component 27 ensures the stability of the brightening film during the fixing and cleaning process, further improving the cleaning effect and performance of the device.

[0018] Workflow: When dusting the four sides and two surfaces of the rectangular brightness enhancement sheet, the second conveying device 26 and the third conveying device 36 are at a distance. First, multiple brightness enhancement sheets are placed on the upper end of the first fixed rotating assembly 4. After the multiple brightness enhancement sheets are placed, the second conveying device 26 drives the second fixed rotating assembly 27 to rotate, so that the multiple second fixed rotating assemblies 27 are aligned with the multiple first fixed rotating assemblies 4 one by one. The electric telescopic rod 22 is activated to drive the moving plate 25 to move downward. The moving plate 25 drives the two dust removal brush assemblies 1, the guide plate 24, the second conveying device 26, and the second fixed rotating assembly 27 to move downward simultaneously. The guide plate 24 slides on the guide post 23. On the outside, it serves to limit the movement of the second conveying device 26. When the bottom end of the second fixed rotating assembly 27 approaches the first fixed rotating assembly 4, and the bottom end of the second fixed rotating assembly 27 is in contact with the top of the brightening film, it still controls the second fixed rotating assembly 27 to move downward. Under the pressure, the second permanent magnet plate 41 moves downward, and the sliding spring telescopic rod 42 slides and retracts. When the bottom end of the second permanent magnet plate 41 is in close contact with the top of the friction block 44, the friction force limits the second permanent magnet plate 41, thereby fixing the brightening film. The second fixed rotating assembly 27 works similarly. During this process, the two dust removal brush assemblies 1 at the top... The two dust removal brush assemblies 1 at the lower end are simultaneously attached to the upper and lower ends of the brightness enhancement sheet via brushes 12. The first conveying device 11 is activated to control the brushes 12 to rotate, and the upper and lower ends of the brightness enhancement sheet are cleaned simultaneously by the brushes 12 at the upper and lower ends. After cleaning, the second fixed rotating assembly 27 is controlled to move upward. At this time, the sliding spring telescopic rod 42 pushes the second permanent magnet plate 41 upward, and the second fixed rotating assembly 27 does the same. The height of the sliding spring telescopic rod 42 and the friction block 44 should be such that they can be used even when the second conveying device 26 and the first conveying device 11 are deformed by compression. When the friction block 44 moves away from the second permanent magnet plate 41, the servo motor 34 is activated to drive the first permanent magnet plate. The first permanent magnet plate 35 and the second permanent magnet plate 41 are magnetically attracted when the first permanent magnet plate 35 and the second permanent magnet plate 41 are rotated. The magnetic force between the first permanent magnet plate 35 and the second permanent magnet plate 41 controls the rotation of the second permanent magnet plate 41. The second permanent magnet plate 41 drives the sliding spring telescopic rod 42 to rotate. Through the friction between the second permanent magnet plate 41 and the brightening sheet, the brightening sheet is rotated. After the brightening sheet rotates to a specified angle, it is fixed in place by the same principle as above. Then, the other edges of the brightening sheet are cleaned. Based on the above principles, when the device thoroughly cleans the edges of the brightening sheet around and on both sides, there is no need to repeatedly fix and clean it. This not only ensures the integrity of cleaning the edges of the brightening surface, but also reduces the labor intensity of the operator and improves the cleaning efficiency.

[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. An edge dust removal brush assembly for a brightness enhancement film, comprising a dust removal brush assembly (1), characterized in that: The bottom end of the dust removal brush assembly (1) is fixedly connected to a drive assembly (3), the top end of the drive assembly (3) is fixedly connected to an auxiliary fixing assembly (2), and one side of the drive assembly (3) is fixedly connected to a first fixing rotating assembly (4). The drive assembly (3) includes a base plate (31), a vertical plate (32) is fixedly connected to the top of the base plate (31), a U-shaped plate (33) is fixedly connected to one side of the base plate (31), a servo motor (34) is fixedly connected to the inner side of the U-shaped plate (33), a first permanent magnet plate (35) is fixedly connected to the end of the main shaft of the servo motor (34), and a third transmission device (36) is installed on the upper end of the base plate (31). The first fixed rotating assembly (4) includes a second permanent magnet plate (41), a sliding spring telescopic rod (42) is fixedly connected to one side of the second permanent magnet plate (41), a support plate (43) is rotatably connected to the outside of the sliding spring telescopic rod (42), a friction block (44) is fixedly connected to one side of the support plate (43), and a fixed base (45) is fixedly connected to one end of the support plate (43) away from the friction block (44). The bottom end of the fixed base (45) is fixedly connected to the top end of the third conveying device (36).

2. The edge dust removal brush assembly for a brightness enhancement film according to claim 1, characterized in that: The dust removal brush assembly (1) includes a first conveying device (11), on which a brush (12) is fixedly connected to the outside of the conveyor belt of the first conveying device (11), and the first conveying device (11) is fixedly connected to the top of the U-shaped plate (33) through a conveying bracket.

3. The edge dust removal brush assembly for a brightness enhancement film according to claim 2, characterized in that: The conveyor belt of the first conveyor device (11) is flush with the top of the third conveyor device (36). There are four dust removal brush assemblies (1). The dust removal brush assemblies (1) are distributed on the left and right ends of the third conveyor device (36). The top of the conveyor support of the upper dust removal brush assembly (1) is fixedly connected to the bottom of the moving plate (25). The upper dust removal brush assembly (1) is distributed on the left and right ends of the second conveyor device (26).

4. The edge dust removal brush assembly for a brightness enhancement film according to claim 1, characterized in that: The auxiliary fixing component (2) includes a top plate (21), an electric telescopic rod (22) and a guide column (23) are fixedly connected to the bottom end of the top plate (21), a moving plate (25) is fixedly connected to the bottom end of the electric telescopic rod (22), a guide plate (24) is slidably connected to the outside of the guide column (23), a second conveying device (26) is installed at the lower end of the moving plate (25), and a second fixed rotating component (27) is fixedly connected to the bottom end of the second conveying device (26).

5. The edge dust removal brush assembly for a brightness enhancement film according to claim 4, characterized in that: The bottom end of the top plate (21) is fixedly connected to the top end of the vertical plate (32). The inner side of the guide plate (24) is provided with a sliding hole. The outer side of the guide column (23) is slidably connected to the inner side of the sliding hole of the guide plate (24). The second conveying device (26) is fixedly connected to the bottom end of the moving plate (25) through the conveying bracket. The structure of the second fixed rotating assembly (27) is the same as that of the first fixed rotating assembly (4).

6. The edge dust removal brush assembly for a brightness enhancement film according to claim 1, characterized in that: The bottom end of the third conveying device (36) is fixedly connected to the base plate (31) through the conveying bracket, and the first permanent magnet plate (35) is aligned vertically with the first fixed rotating assembly (4).

7. The edge dust removal brush assembly for a brightness enhancement film according to claim 1, characterized in that: A gap is provided between the bottom end of the second permanent magnet plate (41) and the top end of the friction block (44). A shaft hole is opened on the inner side of the support plate (43). A bearing is fixed on the inner side of the shaft hole of the support plate (43). The inner side of the bearing of the support plate (43) is fixedly connected to the outer side of the sliding spring telescopic rod (42). The first fixed rotating assembly (4) and the second fixed rotating assembly (27) are aligned vertically.