Light guide plate detection mechanism

Abstract

The utility model relates to the technical field of light guide plate detection, and provides a light guide plate detection mechanism which comprises a workbench, the workbench is connected with a conveying belt through a transmission device, the workbench is provided with a detection box at the top of the conveying belt, and a cleaning module and a detection module are sequentially arranged in the detection box. The interior of the detection box is rotatably connected with a brush through a first rotating shaft, the detection box is internally provided with a driving mechanism for driving the brush to rotate, one side, close to the top, of the interior of the detection box is rotatably connected with a cleaning plate, and the interior of the detection box is provided with a cleaning assembly for driving the cleaning plate to flap the surface of the brush; a dust suction assembly for sucking dust on the surface of the brush is arranged at the top of the detection box. According to the technical scheme, the detection quality of the detection system on the light guide plate is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of light guide plate detection, and specifically to a light guide plate detection mechanism. Background Art

[0002] Light guide plate is an important component used in optical systems. It is usually made of transparent materials (such as organic glass, polycarbonate, etc.) with a certain thickness and special surface structure. Its main function is to conduct light from the light source to the target area to achieve uniform lighting or display effects. During the production process of light guide plate, it is necessary to use a detection mechanism to detect it.

[0003] An existing optical inspection device for a light guide plate belongs to the field of light guide plate inspection technology, and includes a main module and a tidying module. The main module includes a transmission device, a conveyor belt is provided on the transmission device, an inspection box is fixedly connected to the top of the transmission device, a lifting assembly is provided on the top of the inspection box, the lifting assembly extends to the interior of the transmission device, and a plurality of CCD optical inspection lenses are fixedly installed on the lifting assembly. The tidying module includes a partition plate fixedly connected to the inner wall of the inspection box, a cleaning assembly is rotatably connected between the two sides of the inner wall of the inspection box, a dust suction assembly is provided on the top of the inspection box, and the dust suction assembly extends to the interior of the inspection box.

[0004] The above-mentioned related technologies can handle both floating dust and stubborn dust on the light guide plate by setting up a sweeping component, a dust collecting component, a motor and a dust exhaust component. However, after long-term use, a large amount of dust will accumulate on the flexible brush in the sweeping component, and the dust on the surface of the flexible brush may cause secondary contamination to the surface of the subsequent light guide plate, thereby reducing the detection quality of the light guide plate by the detection system. Utility Model Content

[0005] The utility model provides a light guide plate detection mechanism, which improves the detection quality of the light guide plate by the detection system.

[0006] The technical solution of the utility model is as follows: a light guide plate detection mechanism, comprising a workbench, the workbench is connected to a conveyor belt through a transmission device, the workbench is provided with a detection box on the top of the conveyor belt, a cleaning module and a detection module are sequentially arranged in the detection box, a brush is rotatably connected to the detection box through a first rotating shaft, a driving mechanism for rotating the brush is arranged in the detection box, a cleaning plate is rotatably connected to one side of the detection box near the top, a cleaning component for making the cleaning plate beat the surface of the brush is arranged inside the detection box, and a dust suction component for removing dust from the surface of the brush is arranged on the top of the detection box.

[0007] Furthermore, the driving mechanism is linked with the cleaning component.

[0008] Further, the driving mechanism includes a first rack and a first gear. The first rack is disposed on one side of the conveyor belt close to the detection box, and the first gear is disposed on the first rotating shaft and fixedly connected to the first rotating shaft, and the first gear meshes with the first rack.

[0009] Further, the transmission device includes a servo motor, a second rack and two rotating rollers. Each rotating roller is respectively disposed on both sides of the workbench and rotatably connected to the workbench, and second gears are provided on both sides of each rotating roller. The conveyor belt is disposed on the two rotating rollers. The second rack is disposed on one side of the conveyor belt close to the rotating roller, and the second rack meshes with the second gear. The output end of the servo motor is fixedly connected to the rotating roller.

[0010] Further, the cleaning assembly includes a torsion spring and a cam. The cleaning plate is rotatably connected to the inside of the detection box through a rotating shaft, and the cleaning plate abuts against the brush. The cam is disposed on the side of the first rotating shaft away from the brush and fixedly connected to the first rotating shaft, and the cam abuts against the cleaning plate. The torsion spring is sleeved on the outer surface of the rotating shaft. One end of the torsion spring is fixedly connected to the inner wall of the detection box, and the other end of the torsion spring is fixedly connected to the cleaning plate.

[0011] Further, the dust suction assembly includes a dust suction machine, a filter box and a dust suction pipe. The dust suction machine and the filter box are both disposed on the top of the detection box, and the dust suction machine is internally communicated with the filter box. One end of the dust suction pipe is internally communicated with the filter box, and the other end of the dust suction pipe extends to one side of the brush close to the detection module.

[0012] The working principle and beneficial effects of the present utility model are as follows:

[0013] By providing the cleaning plate, the cleaning assembly and the dust suction assembly in the present utility model, when the brush rotates, the cleaning plate will remove the dust on the surface of the brush under the drive of the cleaning assembly, and the dust suction assembly will collect the dust to prevent the dust from falling onto the surface of the light guide plate. Thus, the surface of the brush is kept clean, preventing the dust on the surface of the brush from contaminating the surface of the light guide plate and causing secondary pollution, thereby improving the detection quality of the light guide plate. The dust suction assembly will remove the dust that has been knocked off, improving the cleanliness of the surface of the light guide plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The following further describes the present utility model in detail with reference to the drawings and specific embodiments.

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a schematic partial sectional view of the structure of the present utility model Figure 1 ;

[0017] Figure 3for Figure 2 The enlarged schematic diagram at A in the middle;

[0018] Figure 4 This is a schematic cross-sectional view of the local structure of the utility model Figure 2 ;

[0019] Figure 5 for Figure 2 Enlarged schematic diagram of point B in the middle.

[0020] In the figure: 1. workbench; 101. conveyor belt; 102. detection box; 103. cleaning module; 104. detection module; 105. first rotating shaft; 106. brush; 107. cleaning plate; 108. first rack; 109. first gear; 2. servo motor; 201. second rack; 202. rotating roller; 203. second gear; 3. torsion spring; 301. cam; 302. rotating shaft; 4. vacuum cleaner; 401. filter box; 402. dust suction pipe. DETAILED DESCRIPTION

[0021] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] refer to Figures 1-5 A light guide plate detection mechanism includes a workbench 1, which is connected to a conveyor belt 101 through a transmission device. The workbench 1 is provided with a detection box 102 on the top of the conveyor belt 101. A cleaning module 103 and a detection module 104 are sequentially arranged in the detection box 102. The detection module 104 is a prior art well known to those skilled in the art, so it is not described in detail. A brush 106 is rotatably connected to the detection box 102 through a first rotating shaft 105. A driving mechanism for rotating the brush 106 is arranged in the detection box 102. A cleaning plate 107 is rotatably connected to one side of the detection box 102 near the top. A cleaning component for causing the cleaning plate 107 to beat the surface of the brush 106 is arranged inside the detection box 102. A dust suction component for removing dust from the surface of the brush 106 is arranged on the top of the detection box 102.

[0023] Through the provided cleaning plate 107, cleaning component, and dust suction component, when the brush 106 rotates, the cleaning plate 107 will, driven by the cleaning component, remove the dust on the surface of the brush 106, and the dust suction component will collect the dust to prevent it from falling onto the surface of the light guide plate. Thus, the surface of the brush 106 is kept clean, preventing the dust on the surface of the brush 106 from contaminating the surface of the light guide plate and causing secondary pollution, thereby improving the detection quality of the light guide plate. The dust suction component will remove the knocked-off dust.

[0024] Further, the driving mechanism includes a first rack 108 and a first gear 109. The first rack 108 can be integrally formed with the conveyor belt 101 and is made of rubber material. The first rack 108 is arranged on the side of the conveyor belt 101 close to the detection box 102. The first gear 109 is arranged on the first rotating shaft 105 and fixedly connected to the first rotating shaft 105, and the first gear 109 meshes with the first rack 108. When the conveyor belt 101 moves driven by the transmission device, the first rack 108 will drive the first gear 109 to rotate. At the same time, the first rotating shaft 105 will rotate driven by the first gear 109, thereby driving the brush 106 to clean the dust on the surface of the light guide plate. Linking the rotation of the brush 106 with the conveyor belt 101 can realize an automated surface cleaning process. The movement of the conveyor belt 101 can drive the brush 106 to continuously clean the surface without manual intervention, improving the cleaning efficiency and convenience. At the same time, it also reduces the cost of additional drive sources and improves the practicability.

[0025] In this embodiment, the transmission device includes a servo motor 2, a second rack 201, and two rotating rollers 202. Each rotating roller 202 is respectively arranged on both sides of the workbench 1 and rotatably connected to the workbench 1. Second gears 203 are arranged on both sides of each rotating roller 202. The conveyor belt 101 is arranged on the two rotating rollers 202. The specific connection relationship between the conveyor belt 101 and the rotating rollers 202 is prior art well-known to those skilled in the art, so it will not be elaborated here. The second rack 201 is arranged on the side of the conveyor belt 101 close to the rotating roller 202, and the second rack 201 meshes with the second gear 203. The output end of the servo motor 2 is fixedly connected to the rotating roller 202. The servo motor 2 can be fixedly connected to the side of the workbench 1 through bolts to prevent the servo motor 2 from rotating selflessly when the servo motor 2 starts. By setting the second rack 201 and the second gear 203, it is possible to prevent the conveyor belt 101 from slipping during transportation, thereby ensuring the stable transportation of the conveyor belt 101, extending the service life of the conveyor belt 101, and reducing the maintenance and replacement costs (it should be noted here that arranging racks on both sides of the conveyor belt 101 is prior art well-known to those skilled in the art, and the specific shape and structure can refer to the double-sided tooth synchronous belt, so it will not be elaborated here).

[0026] Furthermore, the cleaning component includes a torsion spring 3 and a cam 301. The cleaning plate 107 is rotatably connected to the inside of the detection box 102 through a rotating shaft 302, and the cleaning plate 107 abuts against the brush 106 (it should be noted that the cleaning plate 107 abuts against the bristles of the brush 106, and the bristles are made of nylon and have good toughness. When the brush 106 rotates, the bristles on the side in contact with the cleaning plate 107 will deform. When the bristles pass over the cleaning plate 107, they will quickly return to their original shape, so that the dust on the bristles will fall off). The cam 301 is arranged on the side of the first rotating shaft 105 away from the brush 106 and is fixedly connected to the first rotating shaft 105, and the cam 301 abuts against the cleaning plate 107 (it should be explained here that there is a gap between the conveyor belt 101 and the side of the workbench 1. The cam 301 is arranged in the gap between the conveyor belt 101 and the workbench 1 and is fixedly connected to the first rotating shaft 105. A through groove is provided on the side of the cleaning plate 107 close to the first gear 109, so that the cleaning plate 107 can pass over the first gear 109). The torsion spring 3 is sleeved on the outer surface of the rotating shaft 302. One end of the torsion spring 3 is fixedly connected to the inner wall of the detection box 102, and the other end of the torsion spring 3 is fixedly connected to the cleaning plate 107. Linking the driving mechanism with the cleaning component can reduce manual intervention and operation, save labor costs and time, improve the cleaning efficiency of the cleaning component, and at the same time reduce production costs.

[0027] When the farthest end of the cam 301 contacts the cleaning plate 107 driven by the first rotating shaft 105, the cleaning plate 107 will rotate, and at the same time, the torsion spring 3 will be twisted and store energy. When the farthest end of the cam 301 disengages from the cleaning plate 107, the torsion spring 3 will return to its original shape, causing the cleaning plate 107 to slap the surface of the brush 106, so that the dust on the surface of the brush 106 will fall off. By setting the cam 301 and the torsion spring 3, the cleaning plate 107 can store energy, increasing the force of the cleaning plate 107 slapping the surface of the brush 106, thereby improving the efficiency of the cleaning component.

[0028] In order to clean the dust after the cleaning plate 107 falls, in this embodiment, the dust suction assembly includes a dust suction machine 4, a filter box 401, and a dust suction pipe 402 (the filter box 401 includes a housing and a filter screen. When negative pressure is generated inside the filter box, the dust suction pipe 402 will suck the dust into the interior of the filter box 401, and the filter screen will intercept the dust inside the filter box to prevent the dust from damaging the dust suction machine 4), and the dust suction machine 4 and the filter box 401 are arranged on the top of the detection box 102, and the dust suction machine 4 is internally connected to the filter box 401, one end of the dust suction pipe 402 is internally connected to the filter box 401, and the other end of the dust suction pipe 402 extends to the side of the brush 106 close to the detection module 104. When the dust is slapped off, the staff can start the dust suction machine 4. The dust suction machine 4 will generate negative pressure inside the filter box 401, and at the same time, under the action of the dust suction pipe 402, the dust will be sucked into the interior of the filter box 401, thereby preventing the dust from falling onto the light guide plate again. The cleanliness of the light guide plate is improved, and thus the detection quality of the light guide plate is improved (it should be noted that by arranging the dust suction assembly on one side of the brush 106, the dust suction assembly itself can achieve the effect of dust suction and can remove part of the dust on the surface of the brush 106).

[0029] Working principle:

[0030] During use, place the light guide plate on the surface of the conveyor belt 101 and start the servo motor 2. The servo motor 2 will drive the second rack 201 to rotate through the second gear 203, causing the conveyor belt 101 to move. When the light guide plate enters the interior of the detection box 102, at the same time, the first rack 108 will also move under the movement of the conveyor belt 101. Since the first rack 108 meshes with the first gear 109, the first gear 109 will drive the first rotating shaft 105 to rotate, and then drive the brush 106 to rotate, so that the brush 106 cleans the dust on the surface of the light guide plate. At the same time, the cam 301 will also rotate under the drive of the first rotating shaft 105. When the farthest end of the cam 301 contacts the cleaning plate 107 under the drive of the first rotating shaft 105, the cleaning plate 107 will rotate, and at the same time, the torsion spring 3 will be distorted and store energy. When the farthest end of the cam 301 disengages from the cleaning plate 107, the torsion spring 3 will return to its original shape, causing the cleaning plate 107 to slap the surface of the brush 106, so that the dust on the surface of the brush 106 falls off. When the dust is slapped off, the dust suction machine 4 can be started. The dust suction machine 4 will generate negative pressure inside the filter box 401, and at the same time, under the action of the dust suction pipe 402, the dust will be sucked into the interior of the filter box 401, thereby preventing the dust from falling onto the light guide plate again. This improves the cleanliness of the light guide plate, and thus the detection quality of the light guide plate.

[0031] 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 detection mechanism, comprising a workbench (1), a conveyor belt (101) is connected to the workbench (1) through a transmission device, a detection box (102) is arranged on the workbench (1) above the conveyor belt (101), a cleaning module (103) and a detection module (104) are sequentially arranged in the detection box (102), and it is characterized in that, A brush (106) is rotatably connected to the detection box (102) via a first rotating shaft (105), a driving mechanism for rotating the brush (106) is provided in the detection box (102), a cleaning plate (107) is rotatably connected to one side of the detection box (102) near the top, a cleaning component for making the cleaning plate (107) beat the surface of the brush (106) is provided inside the detection box (102), and a dust suction component for sucking away dust on the surface of the brush (106) is provided on the top of the detection box (102).

2. The light guide plate detection mechanism according to claim 1, characterized in that: The driving mechanism is linked with the cleaning component.

3. The light guide plate detection mechanism according to claim 2, characterized in that: The driving mechanism comprises a first rack (108) and a first gear (109); the first rack (108) is arranged on a side of the conveyor belt (101) close to the detection box (102); the first gear (109) is arranged on the first rotating shaft (105) and is fixedly connected to the first rotating shaft (105); and the first gear (109) is meshed with the first rack (108).

4. The light guide plate detection mechanism according to claim 3, wherein: The transmission device comprises a servo motor (2), a second rack (201) and two rotating rollers (202); each of the rotating rollers (202) is respectively arranged on two sides of the workbench (1) and is rotatably connected to the workbench (1); and a second gear (203) is arranged on both sides of each rotating roller (202); the conveyor belt (101) is arranged on the two rotating rollers (202); the second rack (201) is arranged on a side of the conveyor belt (101) close to the rotating roller (202), and the second rack (201) is meshed with the second gear (203); and the output end of the servo motor (2) is fixedly connected to the rotating roller (202).

5. The light guide plate detection mechanism according to claim 4, wherein: The cleaning assembly comprises a torsion spring (3) and a cam (301); the cleaning plate (107) is rotatably connected to the inside of the detection box (102) via a rotating shaft (302), and the cleaning plate (107) abuts against the brush (106); the cam (301) is arranged on a side of the first rotating shaft (105) away from the brush (106) and is fixedly connected to the first rotating shaft (105), and the cam (301) abuts against the cleaning plate (107); the torsion spring (3) is sleeved on the outer surface of the rotating shaft (302), one end of the torsion spring (3) is fixedly connected to the inner wall of the detection box (102), and the other end of the torsion spring (3) is fixedly connected to the cleaning plate (107).

6. The light guide plate detection mechanism according to claim 5, characterized in that: The dust collection component comprises a dust collector (4), a filter box (401), and a dust collection pipe (402); the dust collector (4) and the filter box (401) are both arranged on the top of the detection box (102); the dust collector (4) is connected to the inside of the filter box (401); one end of the dust collection pipe (402) is connected to the inside of the filter box (401); and the other end of the dust collection pipe (402) extends to a side of the brush (106) close to the detection module (104).

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