Dust removal device for light guide plate

Abstract

The utility model relates to the technical field of light guide plate dust removal devices, and provides a light guide plate dust removal device which comprises a conveying table, a supporting frame is fixedly connected to the upper side of the conveying table, the two sides of the supporting frame extend towards the conveying table to form fixing plates, a cleaning roller is arranged between the two fixing plates, and the cleaning roller comprises an outer adsorption layer, an inner conductive layer and a supporting layer. The cross section of the inner conducting layer is of a C-shaped structure, the inner conducting layer is arranged on the surface of the supporting layer in a sleeving mode and fixedly connected with the supporting layer, the outer adsorption layer is arranged on the surface of the inner conducting layer and the surface of the supporting layer in a sleeving mode and rotationally connected with the inner conducting layer or the supporting layer, and fixing shafts are arranged on the two sides of the supporting layer; the electrostatic generator is electrically connected with the inner conductive layer, and the conveying table is provided with a cleaning structure used for cleaning dust adsorbed on the cleaning roller. By means of the technical scheme, the problem that in the prior art, a cleaning roller needs to be shut down for cleaning, and consequently the production efficiency is reduced is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of light guide plate dust removal devices, and specifically, to a light guide plate dust removal device. Background Art

[0002] The light guide plate is a key optical component widely used in devices such as liquid crystal display screens, advertising light boxes, and backlight modules. Its main function is to convert point light sources or line light sources into surface light sources, thereby providing a uniform lighting effect. However, during the production and use of the light guide plate, dust and tiny particles are likely to accumulate on its surface, which not only affects the optical performance of the light guide plate but also causes a decline in display quality. Therefore, the cleaning of the light guide plate becomes a key step to ensure its performance and service life.

[0003] Currently, the common light guide plate dust removal devices on the market mainly use cleaning rollers for dust removal. The cleaning roller contacts the surface of the light guide plate and adsorbs dust and particles from the surface of the light guide plate onto the cleaning roller by using the principle of static electricity or adhesion. However, after long-term use of this device, a large amount of dust and impurities will gradually accumulate on the surface of the cleaning roller, resulting in a gradual decline in the cleaning effect. To maintain the high-efficiency dust removal ability of the cleaning roller, the cleaning roller must be cleaned and maintained regularly. In actual operation, the cleaning and maintenance of the cleaning roller usually need to be carried out during downtime. This not only means that the production line needs to stop running, resulting in a reduction in production efficiency, but also may increase production costs and maintenance workload due to frequent downtime cleaning. Summary of the Utility Model

[0004] The utility model provides a light guide plate dust removal device, which solves the problem that the cleaning of the cleaning roller in the related art needs to be carried out during downtime, resulting in a reduction in production efficiency.

[0005] The technical solution of the utility model is as follows:

[0006] A light guide plate dust removal device includes a conveying table. A support frame is fixedly connected to the upper side of the conveying table. Fixing plates extend from both sides of the support frame towards the conveying table. A cleaning roller is arranged between the two fixing plates. The cleaning roller includes an outer adsorption layer, an inner conductive layer, and a support layer. The cross-section of the inner conductive layer is in a "C" - shaped structure. The inner conductive layer is sleeved on the surface of the support layer and is fixedly connected to the support layer. The inner conductive layer faces the conveying table. The outer adsorption layer is sleeved on the surfaces of the inner conductive layer and the support layer, and is rotatably connected to the inner conductive layer and the support layer. Fixed shafts are arranged on both sides of the support layer. The two fixed shafts extend towards their adjacent fixing plates and are fixedly connected to the fixing plates. The conveying table is provided with an electrostatic generator, and the electrostatic generator is electrically connected to the inner conductive layer. The conveying table is provided with a cleaning structure for cleaning the dust adsorbed on the cleaning roller.

[0007] Furthermore, the cleaning structure includes a dust suction pipe and a dust cleaner. The dust suction pipe is fixedly connected to the support frame. One end of the dust suction pipe extends a cleaning opening toward the cleaning roller. The cleaning opening is located on the side of the cleaning roller away from the conveying platform. The cleaning opening faces the cleaning roller. An air intake pipe is provided between the dust suction pipe and the dust cleaner. Both ends of the air intake pipe are respectively connected to the dust suction pipe and the air inlet of the dust cleaner.

[0008] Furthermore, a dust suction opening is extended toward the conveying platform from one end of the dust suction pipe facing the conveying platform, and the dust suction opening is located at the rear side of the cleaning roller, and the dust suction opening faces the conveying platform.

[0009] Furthermore, one end of the outer adsorption layer away from the electrostatic generator extends toward the adjacent fixed plate, and a driving device for driving the outer adsorption layer to rotate is provided at the extended portion of the outer adsorption layer.

[0010] Furthermore, the driving device includes a driving motor and a transmission belt. The driving motor is fixedly connected to the support frame, and the transmission belt is sleeved on the rotating shaft of the driving motor and the extension of the outer adsorption layer.

[0011] The working principle and beneficial effects of the utility model are:

[0012] The utility model sends static electricity to the inner conductive layer through an electrostatic generator, and the static electricity located in the inner conductive layer passes through the outer adsorption layer and is distributed on the surface of the outer adsorption layer. Since the cross section of the inner conductive layer is in a "C"-shaped structure, the static electricity located in the outer adsorption layer is in a "C"-shaped structure as a whole. Since the outer adsorption layer is rotatably connected with the inner conductive layer and the support layer, the inner conductive layer is fixed to the support layer, the support layer is fixed to the fixed plate, and the inner conductive layer faces the conveying platform, when the cleaning roller is running, there will always be strong static electricity on the side of the cleaning roller facing the conveying platform, and there will be a section of no static electricity or weak static electricity on the side of the cleaning roller away from the conveying platform. When the device is running, after the cleaning roller contacts the light guide plate, the static electricity on the cleaning roller adsorbs the dust on the light guide plate to the surface of the cleaning roller. As the outer adsorption layer rolls, the dust is driven to rotate. When the dust is driven to the position where the cleaning roller has no static electricity or weak static electricity, the suction force of the cleaning roller on the dust will be weakened or eliminated, and then the cleaning structure removes the dust, thereby achieving the function of the cleaning roller to perform self-cleaning during operation. The utility model discloses cleaning roller can be cleaned when the cleaning roller is in operation, and there is no need to shut down the device and then clean the cleaning roller separately, which greatly improves the production efficiency and solves the problem that the cleaning roller in the related art needs to be cleaned by shutting down the device, resulting in reduced production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0014] Figure 1Structural schematic diagram of the present utility model;

[0015] Figure 2 Upper view of the present utility model;

[0016] Figure 3 is Figure 2 Cross-sectional view taken along line A-A of

[0017] Figure 4 is Figure 2 Cross-sectional view taken along line B-B of

[0018] Figure 5 is Figure 3 Cross-sectional view taken at position A of

[0019] Figure 6 is Figure 4 Cross-sectional view taken at position B of

[0020] In the figure: 1, conveying table; 2, cleaning roller; 3, dust suction pipe; 4, dust suction machine; 5, support frame; 6, drive motor; 7, electrostatic generator; 21, outer adsorption layer; 22, inner conductive layer; 23, support layer; 25, fixing plate; 31, cleaning opening; 32, dust suction opening; 41, air inlet pipe; 61, transmission belt; 100, light guide plate; 231, fixed shaft. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

[0022] Such as Figures 1 to 6As shown, the present embodiment proposes a light guide plate dust removal device, comprising a conveying platform 1, a support frame 5 is fixedly connected to the upper side of the conveying platform 1, and fixed plates 25 are extended to the conveying platform 1 on both sides of the support frame 5, and a cleaning roller 2 is arranged between the two fixed plates 25, and the cleaning roller 2 comprises an outer adsorption layer 21, an inner conductive layer 22, and a supporting layer 23, the cross section of the inner conductive layer 22 is a "C"-shaped structure, the inner conductive layer 22 is sleeved on the surface of the supporting layer 23, the inner conductive layer 22 is fixedly connected to the supporting layer 23, the inner conductive layer 22 faces the conveying platform 1, the outer adsorption layer 21 is sleeved on the surfaces of the inner conductive layer 22 and the supporting layer 23, the outer adsorption layer 21 is rotatably connected to the inner conductive layer 22 and the supporting layer 23, and fixed shafts 231 are arranged on both sides of the supporting layer 23, and the two fixed shafts 231 extend to the adjacent fixed plates 25 and are fixedly connected to the fixed plates 25, the conveying platform 1 is provided with an electrostatic generator 7, and the electrostatic generator 7 is electrically connected to the inner conductive layer 22, and the conveying platform 1 is provided with a cleaning structure for cleaning dust adsorbed on the cleaning roller 2. The conveyor platform 1 is used to support and convey the light guide plate 100 so that it passes through the cleaning area. The conveyor platform 1 can be a roller conveyor platform or a belt conveyor platform. The roller conveyor platform and the belt conveyor platform are both existing technologies, and their specific structures are not repeated in this embodiment. The support frame 5 is used to support and fix the fixing plate 25 of the cleaning roller 2. The fixing plate 25 is used to fix and support the cleaning roller 2. The cleaning roller 2 is used to remove dust from the light guide plate 100; the outer adsorption layer 21 of the cleaning roller 2 is responsible for directly contacting the surface of the light guide plate 100, and adsorbing dust to its surface through static electricity to achieve the dust removal function; the inner conductive layer 22 is used to connect with the electrostatic generator 7 to transfer electrostatic charge, thereby providing electrostatic adsorption capacity for the outer adsorption layer 21, and the inner conductive layer 22 is also used to control the electrostatic adsorption range of the cleaning roller 2. By setting the inner conductive layer 22 in a "C" shape structure, the cleaning roller 2 has a strong electrostatic adsorption capacity only within the "C" shape range, and has no electrostatic adsorption capacity or weak electrostatic adsorption capacity in other ranges, so that the cleaning structure can remove the dust adsorbed on the cleaning roller 2 within this range without electrostatic adsorption capacity or weak electrostatic adsorption capacity. Thereby, the function of cleaning the cleaning roller 2 is achieved; the supporting layer 23 is used to provide structural support for the cleaning roller 2 to ensure the stability of the cleaning roller 2, and the supporting layer 23 is fixedly connected to the fixing plate 25 through the fixing shaft 231, so that the supporting layer 23 will not rotate when the cleaning roller 2 is running, and the inner conductive layer 22 is fixedly connected to the supporting layer 23, so that the inner conductive layer 22 will not rotate when the cleaning roller 2 is running, thereby limiting the position of the inner conductive layer 22 so that the inner conductive layer 22 is always facing the conveying platform 1, thereby determining that the range of the strong electrostatic adsorption ability of the cleaning roller 2 is the side of the cleaning roller 2 facing the conveying platform 1, and the range of the cleaning roller 2 having no electrostatic adsorption ability or weak electrostatic adsorption ability is the side of the cleaning roller 2 not covered by the inner conductive layer 22 away from the conveying platform 1.The outer adsorption layer 21 is rotatably connected to the inner conductive layer 22 and the supporting layer 23. When the dust on the light guide plate 100 is adsorbed to the outer adsorption layer 21, the dust will rotate with the outer adsorption layer 21 and switch between the range of strong electrostatic adsorption ability and the range of no electrostatic adsorption ability or weak electrostatic adsorption ability of the cleaning barrel. When the dust enters the range of no electrostatic adsorption ability or weak electrostatic adsorption ability, the suction force of the outer adsorption layer 21 on the dust gradually weakens, and the cleaning structure can effectively clean the dust, thereby cleaning the cleaning roller 2.

[0023] In this embodiment, the cleaning structure includes a dust suction pipe 3 and a dust collector 4. The dust suction pipe 3 is fixedly connected to the support frame 5. One end of the dust suction pipe 3 extends a cleaning opening 31 toward the cleaning roller 2. The cleaning opening 31 is located on the side of the cleaning roller 2 away from the conveying platform 1. The cleaning opening 31 faces the cleaning roller 2. An air intake pipe 41 is arranged between the dust suction pipe 3 and the dust collector 4. The two ends of the air intake pipe 41 are respectively connected to the dust suction pipe 3 and the air intake of the dust collector 4. The dust suction pipe 3 is fixedly connected to the support frame 5, and a cleaning opening 31 is extended at one end to directly perform dust suction operation on the cleaning roller 2. The cleaning opening 31 is located on the side of the cleaning roller 2 away from the conveying platform 1, and faces the cleaning roller 2. It is specifically used to absorb dust on the surface of the cleaning roller 2 that is within the range of no electrostatic adsorption ability or weak electrostatic adsorption ability, so as to maintain the cleanliness of the cleaning roller 2. The dust collector 4 is used to provide suction force to suck in dust through the dust suction pipe 3. The dust collector 4 is a prior art, and its specific structure is not repeated in this embodiment. The air inlet pipe 41 is used to connect the dust suction pipe 3 and the dust collector 4 , so that the dust collector 4 can suck away the dust on the surface of the cleaning roller 2 through the dust suction pipe 3 .

[0024] In this embodiment, a dust suction opening 32 is extended toward the conveying platform 1 from one end of the dust suction pipe 3 facing the conveying platform 1, and the dust suction opening 32 is located at the rear side of the cleaning roller 2, and the dust suction opening 32 faces the conveying platform 1. The dust suction opening 32 is used to further remove dust from the light guide plate 100 after the light guide plate 100 passes through the cleaning roller 2, and to remove dust that may not be cleaned by the cleaning roller 2 or dust that falls onto the light guide plate 100 after the cleaning by the cleaning roller 2 is completed, thereby improving the dust removal effect of the device on the light guide plate 100.

[0025] In this embodiment, one end of the outer adsorption layer 21 away from the electrostatic generator 7 extends toward the adjacent fixed plate 25, and a driving device for driving the outer adsorption layer 21 to rotate is provided at the extension of the outer adsorption layer 21. The portion of the outer adsorption layer 21 extending toward the fixed plate 25 is used to cooperate with the driving device, so that the driving device can actively drive the outer adsorption layer 21 to rotate without hindering the outer adsorption layer 21 from removing dust from the light guide plate 100. The ability of the outer adsorption layer 21 to actively rotate is achieved through the driving device, that is, the active rotation of the cleaning roller 2 is achieved, and the rotation speed and direction of the cleaning roller 2 are precisely controlled to meet different cleaning requirements, so that the rotation speed of the cleaning roller 2 is not affected by the moving speed of the light guide plate 100, and the cleaning effect is more consistent.

[0026] In this embodiment, the driving device includes a driving motor 6 and a transmission belt 61. The driving motor 6 is fixedly connected to the support frame 5, and the transmission belt 61 is sleeved on the rotating shaft of the driving motor 6 and the extension of the outer adsorption layer 21. The driving motor 6 is used to provide power to rotate the outer adsorption layer 21, that is, to rotate the cleaning roller 2. The transmission belt 61 is used to transmit the rotational motion of the driving motor 6 to the outer adsorption roller to drive its rotation.

[0027] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A light guide plate dust removal device, comprising a conveying platform (1), a support frame (5) is fixedly connected to the upper side of the conveying platform (1), both sides of the support frame (5) extend fixed plates (25) toward the conveying platform (1), a cleaning roller (2) is arranged between the two fixed plates (25), and the device is characterized in that: The cleaning roller (2) comprises an outer adsorption layer (21), an inner conductive layer (22), and a support layer (23); the inner conductive layer (22) has a cross-section in a "C"-shaped structure; the inner conductive layer (22) is sleeved on the surface of the support layer (23); the inner conductive layer (22) and the support layer (23) are fixedly connected; the inner conductive layer (22) faces the conveying platform (1); the outer adsorption layer (21) is sleeved on the surfaces of the inner conductive layer (22) and the support layer (23); the outer adsorption layer (2 1) is rotatably connected to the inner conductive layer (22) and the support layer (23), the two sides of the support layer (23) are provided with fixed shafts (231), the two fixed shafts (231) extend toward the adjacent fixed plates (25) and are fixedly connected to the fixed plates (25), the conveying platform (1) is provided with an electrostatic generator (7), the electrostatic generator (7) is electrically connected to the inner conductive layer (22), and the conveying platform (1) is provided with a cleaning structure for cleaning dust adsorbed on the cleaning roller (2).

2. A light guide plate dust removal device according to claim 1, characterized in that: The cleaning structure comprises a dust suction pipe (3) and a dust collector (4); the dust suction pipe (3) is fixedly connected to a support frame (5); one end of the dust suction pipe (3) extends toward the cleaning roller (2) to form a cleaning opening (31); the cleaning opening (31) is located on a side of the cleaning roller (2) away from the conveying platform (1); the cleaning opening (31) faces the cleaning roller (2); an air intake pipe (41) is provided between the dust suction pipe (3) and the dust collector (4); two ends of the air intake pipe (41) are respectively connected to the dust suction pipe (3) and the air intake of the dust collector (4).

3. A light guide plate dust removal device according to claim 2, characterized in that: One end of the dust suction pipe (3) facing the conveying platform (1) extends toward the conveying platform (1) to form a dust suction opening (32), the dust suction opening (32) is located at the rear side of the cleaning roller (2), and the dust suction opening (32) faces the conveying platform (1).

4. The light guide plate dust removal device according to claim 1, characterized in that: One end of the outer adsorption layer (21) away from the electrostatic generator (7) extends toward the adjacent fixed plate (25), and a driving device for driving the outer adsorption layer (21) to rotate is provided at the extension of the outer adsorption layer (21).

5. The light guide plate dust removal device according to claim 4, characterized in that: The driving device comprises a driving motor (6) and a transmission belt (61); the driving motor (6) is fixedly connected to the support frame (5); and the transmission belt (61) is sleeved on the rotating shaft of the driving motor (6) and the extension of the outer adsorption layer (21).

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