Efficient automatic dust removal device for backlight module

Abstract

The utility model discloses an efficient automatic dust removal device for a backlight module, which comprises a workbench, a positioning table, a dust removal module and a linear driving module, both the positioning table and the dust removal module are mounted on the workbench, the positioning table is used for placing the backlight module, and the linear driving module is used for driving the positioning table or the dust removal module to move. The surface of the backlight module placed on the positioning table is cleaned through the dust removal module; the dust removal module comprises a dust removal box body, the bottom of the dust removal box body is provided with an air blowing opening and two air suction openings distributed in the two sides of the air blowing opening, the air blowing opening is used for blowing air towards the surface of the backlight module, and the air suction openings are used for sucking dust on the surface of the backlight module; the air blowing port and the two air suction ports work at the same time. According to the utility model, efficient and thorough automatic dust removal of the backlight module can be realized, and the quality of the backlight module is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal devices, and particularly relates to an efficient automatic dust removal device for a backlight module. Background Art

[0002] The backlight module is one of the important components in liquid crystal display devices, and its function is to provide a uniform light source so that the liquid crystal display screen can display images normally. During the production and assembly process of the backlight module, a large amount of dust and impurities will be generated. If these dust and impurities adhere to the backlight module, it will seriously affect its display effect and quality.

[0003] The traditional dust removal methods for backlight modules mainly include the following: 1) Cleaning manually with cleaning tools. This method not only has low efficiency but also is easy to damage the backlight module; 2) Using sticky cleaning tools such as tapes for cleaning. This method is easy to leave dust residues at dead corners, the cleaning is not thorough, and it is easy to leave sticky substances on the backlight module; 3) Using an air knife to blow the surface of the backlight module to remove dust and impurities. This method will make the dust suspended in the working environment and is easy to cause secondary pollution; 4) Using a dust suction device to suck away the dust on the surface of the backlight module. It is difficult to completely suck away the dust relying on this single suction force, and the dust removal effect is not ideal. Therefore, it is necessary to improve the existing technology to overcome the defects in the existing technology. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an efficient automatic dust removal device for a backlight module to solve the problems existing in the prior art, realize efficient and thorough automatic dust removal of the backlight module, and improve the quality of the backlight module.

[0005] The technical solution adopted by the utility model to solve its technical problems is: an efficient automatic dust removal device for a backlight module, including: a workbench, a positioning table, a dust removal module, and a linear driving module. The positioning table and the dust removal module are both installed on the workbench. The positioning table is used to place the backlight module, and the linear driving module is used to drive the positioning table or the dust removal module to move, and the surface of the backlight module placed on the positioning table is cleaned through the dust removal module; the dust removal module includes a dust removal box body, and a blowing port is arranged at the bottom of the dust removal box body and two suction ports distributed on both sides of the blowing port. The blowing port is used to blow air towards the surface of the backlight module, and the suction ports are used to suck the dust on the surface of the backlight module; wherein, the blowing port and the two suction ports work simultaneously.

[0006] As a further improvement of the present utility model, a partition is installed inside the dust removal box body. The partition divides the inner cavity of the dust removal box body into a first chamber and two second chambers. The air blowing port communicates with the first chamber, and the two air suction ports respectively communicate with the two second chambers.

[0007] As a further improvement of the present utility model, there are two partitions arranged symmetrically. Both of the two partitions are provided with inclined plates and vertical plates integrally connected to the lower ends of the inclined plates. The two inclined plates are distributed in an inverted V shape to form an air inlet passage that is wider at the top and narrower at the bottom therebetween. The air inlet passage is located in the first chamber.

[0008] As a further improvement of the present utility model, an air blowing block is installed between the two vertical plates. The air blowing block is provided with an air blowing nozzle that is wider at the top and narrower at the bottom and penetrates through its upper and lower ends. The top of the air blowing nozzle leads to the first chamber, and the bottom of the air blowing nozzle is butted against the air blowing port.

[0009] As a further improvement of the present utility model, a confluence plate is installed at the upper end of the air blowing nozzle of the air blowing block. A plurality of long holes are arranged in a row on the confluence plate.

[0010] As a further improvement of the present utility model, an air inlet communicating with the first chamber and an air outlet communicating with the two second chambers are further provided on the dust removal box body. Both the air inlet and the air outlet are connected to external positive and negative pressure air equipment through pipelines.

[0011] As a further improvement of the present utility model, a first slide rail is installed horizontally on the workbench. The positioning table is slidably fitted on the first slide rail through a slider. The linear drive module is connected to the positioning table, and the linear drive module is used to drive the positioning table to slide along the first slide rail.

[0012] As a further improvement of the present utility model, a plurality of suction cups for adsorbing the backlight module are arranged on the positioning table.

[0013] As a further improvement of the present utility model, a bracket is fixedly installed on the workbench. A second slide rail and a lifting drive device are installed vertically on the bracket. The dust removal module is slidably fitted on the second slide rail through a slider and is connected to the lifting drive device. The lifting drive device is used to drive the dust removal module to slide up and down along the second slide rail.

[0014] As a further improvement of the present utility model, both the air blowing port and the two air suction ports are linear and are distributed parallel to each other.

[0015] The beneficial effects of the present utility model are as follows: The present utility model provides an efficient automatic dust removal device for a backlight module. By arranging a positioning table, a dust removal module, and a linear drive module on a workbench, a blowing port and two suction ports distributed on both sides of the blowing port are provided at the bottom of the dust removal box body of the dust removal module. The blowing port and the two suction ports work simultaneously. When the linear drive module drives the positioning table to slide back and forth along the first slide rail, and the backlight module passes under the dust removal box body, the surface of the backlight module is purged through the blowing port, blowing up dust and other foreign matters, and at the same time, the blown-up dust and other foreign matters are sucked away by the suction ports on both sides, thereby realizing efficient and thorough automatic dust removal of the backlight module, improving the quality of the backlight module, preventing the escape of dust and other foreign matters, and avoiding secondary pollution to the backlight module. Description of the Drawings

[0016] Figure 1 Fig. is a perspective view of the efficient automatic dust removal device for the backlight module of the present utility model with the backlight module placed thereon;

[0017] Figure 2 Fig. is a perspective view of the efficient automatic dust removal device for the backlight module of the present utility model;

[0018] Figure 3 Fig. is a perspective view of the dust removal module of the present utility model with the end cover removed;

[0019] Figure 4 Fig. is a perspective view of the dust removal module of the present utility model with the end cover removed from another perspective.

[0020] The following description is made in conjunction with the drawings:

[0021] 1. Workbench; 2. Positioning table; 3. Dust removal module; 31. Dust removal box body;

[0022] 311. Blowing port; 312. Suction port; 313. First chamber; 314. Second chamber;

[0023] 315. Air inlet; 316. Air outlet; 32. Partition board; 321. Inclined plate; 322. Vertical plate; 323. Air inlet channel; 33. Blowing block; 331. Blowing nozzle; 34. Confluence plate; 4. Linear drive module; 5. Backlight module; 6. First slide rail; 7. Suction cup; 8. Bracket; 9. Second slide rail; 10. Lifting drive device. Detailed Embodiment

[0024] The following describes the preferred embodiments of the present utility model in detail in conjunction with the drawings.

[0025] Refer to Figures 1 to 4, the present utility model provides an efficient automatic dust removal device for a backlight module, including: a workbench 1, a positioning table 2, a dust removal module 3, and a linear drive module 4. The positioning table 2 is used to place the backlight module 5 to be dusted. Both the positioning table 2 and the dust removal module 3 are installed on the workbench 1. The linear drive module 4 is used to drive the positioning table 2 or the dust removal module 3 to move, and the surface of the backlight module 5 placed on the positioning table 2 is cleaned by the dust removal module 3.

[0026] In this embodiment, the linear drive module 4 drives the positioning table 2.

[0027] Specifically, a first slide rail 6 is horizontally installed along the width direction at the top of the positioning table 2. The bottom of the positioning table 2 is slidably fitted on the first slide rail 6 through a plurality of sliders. The linear drive module 4 is also horizontally installed at the top of the positioning table 2 along the width direction of the positioning table 2 and is connected to the positioning table 2. The linear drive module 4 is used to drive the positioning table 2 to slide back and forth along the first slide rail 6. When the positioning table 2 carries the backlight module 5 to move back and forth, it passes under the dust removal module 3, and the surface of the backlight module 5 placed on the positioning table 2 is cleaned by the dust removal module 3.

[0028] Exemplarily, the linear drive module 4 can adopt a ball screw type linear module, a synchronous pulley type linear module, an electric push rod, or a linear motor module, etc. In this embodiment, a linear motor module is preferably used.

[0029] Among them, a plurality of suction cups 7 for adsorbing the backlight module 5 are arranged at the top of the positioning table 2. The plurality of suction cups 7 are connected to a vacuum pump through an air circuit assembly. When the vacuum pump works, a negative pressure can be formed on the plurality of suction cups 7, thereby adsorbing and fixing the backlight module 5.

[0030] Further, the dust removal module 3 includes a dust removal box body 31. A blowing port 311 is provided at the bottom of the dust removal box body 31, and two suction ports 312 are distributed on both sides of the blowing port 311. The blowing port 311 is used to blow air towards the surface of the backlight module 5, and the suction ports 312 are used to suck dust from the surface of the backlight module 5.

[0031] During dust removal, the blowing port 311 and the two suction ports 312 work simultaneously, that is, while the blowing port 311 is blowing air, the suction ports 312 on both sides are continuously sucking air. When the linear drive module 4 drives the positioning table 2 to slide back and forth along the first slide rail 6, so that the backlight module 5 passes under the dust removal box body 31, the surface of the backlight module 5 is blown by the blowing port 311 to blow up dust and other foreign matters, and at the same time, the blown-up dust and other foreign matters are sucked away by the suction ports 312 on both sides, thereby realizing efficient and thorough automatic dust removal of the backlight module 5, improving the quality of the backlight module, and at the same time preventing dust and other foreign matters from escaping and avoiding secondary pollution to the backlight module 5.

[0032] Among them, the air blowing port 311 and the two air suction ports 312 are both linear and parallel to each other; the air blowing port 311 and the two air suction ports 312 have the same length and are longer than the length of the backlight module 5, so that when the backlight module 5 passes below the dust removal box body 31, it can ensure that the surface of the backlight module 5 is comprehensively cleaned.

[0033] Figure 3 and Figure 4 The figures shown are all three-dimensional views of the dust removal module 3 after removing one end cover plate of the dust removal box body 31. A partition plate 32 is installed in the dust removal box body 31. The partition plate 32 divides the inner cavity of the dust removal box body 31 into a first chamber 313 and two second chambers 314. The air blowing port 311 communicates with the first chamber 313, and the two air suction ports 312 respectively communicate with the two second chambers 314. An air inlet 315 communicating with the first chamber 313 and an air outlet 316 communicating with the two second chambers 314 are further provided on the dust removal box body 31. The air inlet 315 and the air outlet 316 are both connected to external positive and negative pressure air equipment through pipelines.

[0034] It should be noted that the positive and negative pressure air equipment can be a blower. The blowing end of the blower is connected to the air inlet 315 through a pipeline, and the air inlet end of the blower is connected to the air outlet 316 through a pipeline. When the blower works, a positive pressure can be formed in the first chamber 313, and at the same time, a negative pressure can be formed in the two second chambers 314 to realize air circulation. Of course, the positive and negative pressure air equipment can also be a combination of an air compressor and a vacuum pump. The air compressor intakes air through the air inlet 315 to form a positive pressure in the first chamber 313, and the vacuum pump is connected to the air outlet 316 through a pipeline to form a negative pressure in the two second chambers 314, and the dust removal module 3 can also perform dust removal by blowing and sucking air at the same time.

[0035] Refer to Figure 4 , there are two partition plates 32 arranged symmetrically. Both of the two partition plates 32 are provided with inclined plates 321 and vertical plates 322 integrally connected to the lower ends of the inclined plates 321. The two inclined plates 321 are distributed in an inverted V shape to form an air inlet passage 323 that is wider at the top and narrower at the bottom between them. The air inlet passage 323 is located in the first chamber 313. The positive pressure gas entering the first chamber 313 from the air inlet 315 can increase the gas pressure under the action of the air inlet passage 323.

[0036] Furthermore, a blowing block 33 is installed between the two vertical plates 322. The blowing block 33 is provided with a blowing nozzle 331 that is wider at the top and narrower at the bottom and penetrates through its upper and lower ends. The top of the blowing nozzle 331 leads to the first chamber 313, and the bottom of the blowing nozzle 331 is butted against the air blowing port 311. When the positive pressure gas in the first chamber 313 flows towards the air blowing port 311, the gas pressure can be further increased through the blowing nozzle 331 that is wider at the top and narrower at the bottom.

[0037] It is worth mentioning that a confluence plate 34 is installed at the upper end of the air blowing nozzle 331 of the air blowing block 33, and a number of long holes are arranged on the confluence plate 34. The positive pressure gas in the first chamber 313 passes through the air inlet channel 323, the confluence plate 34, and the air blowing nozzle 331 in sequence and then blows out from the air blowing port 311. When the positive pressure gas passes through the confluence plate 34, under the action of a number of long holes on the confluence plate 34, not only can the uniformity of gas flow be improved, but also the gas pressure can be further increased.

[0038] Refer to Figure 1 and Figure 2 As shown in

[0039] A gantry-type bracket 8 is fixedly installed on the workbench 1. A second slide rail 9 and a lifting drive device 10 are installed on the bracket 8 in the vertical direction. The dust removal module 3 is slidably fitted on the second slide rail 9 through a slider and is connected to the lifting drive device 10. The lifting drive device 10 is used to drive the dust removal module 3 to slide up and down along the second slide rail 9 to realize the height adjustment of the dust removal module 3.

[0040] Among them, the lifting drive device 10 can adopt a ball screw type linear module, a synchronous pulley type linear module, an electric push rod or a linear motor module, etc. to realize the automatic drive of the dust removal module 3 to make a lifting movement; of course, the lifting drive device 10 can also adopt a handwheel screw lifting stage to realize the manual drive of the dust removal module 3 to make a lifting movement. In this embodiment, the lifting drive device 10 specifically adopts a handwheel screw lifting stage.

[0041] In the above description, many specific details are set forth in order to fully understand the present utility model. However, the above description is only a preferred embodiment of the present utility model, and the present utility model can be implemented in many other ways different from those described herein. Therefore, the present utility model is not limited by the specific implementations disclosed above. At the same time, any person skilled in the art can make many possible changes and modifications to the technical solution of the present utility model by using the methods and technical content disclosed above without departing from the scope of the technical solution of the present utility model, or modify it into an equivalent embodiment with equivalent changes. All content that does not depart from the technical solution of the present utility model, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present utility model still fall within the scope of protection of the technical solution of the present utility model.

Claims

1. A high-efficiency automatic dust removal device for a backlight module, characterized in that: include: A workbench (1), a positioning table (2), a dust removal module (3) and a linear drive module (4), wherein the positioning table (2) and the dust removal module (3) are both mounted on the workbench (1), the positioning table (2) is used to place a backlight module (5), and the linear drive module (4) is used to drive the positioning table (2) or the dust removal module (3) to move, and the dust removal module (3) is used to perform a surface cleaning on the backlight module (5) placed on the positioning table (2). Cleaning; the dust removal module (3) comprises a dust removal box (31); the bottom of the dust removal box (31) is provided with an air blowing port (311) and two air suction ports (312) distributed on both sides of the air blowing port (311); the air blowing port (311) is used to blow air towards the surface of the backlight module (5); the air suction port (312) is used to absorb dust on the surface of the backlight module (5); wherein the air blowing port (311) and the two air suction ports (312) work simultaneously.

2. The high-efficiency automatic dust removal device for backlight module according to claim 1, characterized in that: A partition (32) is installed in the dust removal box (31), and the partition (32) divides the inner cavity of the dust removal box (31) into a first chamber (313) and two second chambers (314); the air blowing port (311) is connected to the first chamber (313), and the two air suction ports (312) are respectively connected to the two second chambers (314).

3. The high-efficiency automatic dust removal device for backlight module according to claim 2, characterized in that: The partition plates (32) are provided with two symmetrically distributed ones, and the two partition plates (32) are both provided with an inclined plate (321) and a vertical plate (322) integrally connected to the lower end of the inclined plate (321), and the two inclined plates (321) are distributed in an inverted figure eight shape to form an air intake channel (323) between the two that is wide at the top and narrow at the bottom, and the air intake channel (323) is located in the first chamber (313).

4. The high-efficiency automatic dust removal device for backlight module according to claim 3, characterized in that: A blowing block (33) is installed between the two vertical plates (322), and the blowing block (33) is provided with a blowing nozzle (331) which is wide at the top and narrow at the bottom and passes through the upper and lower ends thereof, the top of the blowing nozzle (331) leads to the first chamber (313), and the bottom of the blowing nozzle (331) is connected to the blowing port (311).

5. The high-efficiency automatic dust removal device for backlight module according to claim 4, characterized in that: The air blowing block (33) is provided with a collector plate (34) at the upper end of the air blowing nozzle (331), and a plurality of long holes are arranged on the collector plate (34).

6. The high-efficiency automatic dust removal device for backlight module according to claim 2, characterized in that: The dust removal box (31) is also provided with an air inlet (315) connected to the first chamber (313) and an air outlet (316) connected to the two second chambers (314); the air inlet (315) and the air outlet (316) are both connected to external positive and negative pressure air equipment through pipelines.

7. The high-efficiency automatic dust removal device for backlight module according to claim 1, characterized in that: A first slide rail (6) is installed on the workbench (1) in a horizontal direction; the positioning platform (2) is slidably mounted on the first slide rail (6) via a slider; the linear drive module (4) is connected to the positioning platform (2); and the linear drive module (4) is used to drive the positioning platform (2) to slide along the first slide rail (6).

8. The high-efficiency automatic dust removal device for backlight module according to claim 1, characterized in that: The positioning platform (2) is provided with a plurality of suction cups (7) for adsorbing the backlight module (5).

9. The high-efficiency automatic dust removal device for backlight module according to claim 7, characterized in that: A bracket (8) is fixedly mounted on the workbench (1); a second slide rail (9) and a lifting drive device (10) are mounted on the bracket (8) in a vertical direction; the dust removal module (3) is slidably mounted on the second slide rail (9) via a slider and is connected to the lifting drive device (10); the lifting drive device (10) is used to drive the dust removal module (3) to slide up and down along the second slide rail (9).

10. The high-efficiency automatic dust removal device for backlight module according to claim 1, characterized in that: The air blowing port (311) and the two air suction ports (312) are all linear and distributed parallel to each other.

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