Light guide plate defect detection device

Abstract

The utility model discloses a light guide plate defect detection device, relates to the field of detection devices, and aims to solve the problem that in the prior art, when the flatness of light guide plates is detected by an existing defect detection device, the light guide plates are mostly required to be manually placed on the detection device one by one for detection, and the detection efficiency is relatively low. Conveying device side plates are fixedly connected to the front end and the rear end of the conveying device, rotating pipes are rotationally connected to the two fixing shafts, guide plates are fixedly connected to one sides of the two rotating pipes, and a detection device is jointly and fixedly connected to the other sides of the middles of the upper ends of the two conveying device side plates; a plurality of infrared probes are fixedly connected to the upper end face of a detection groove of the detection device at equal intervals, an adjusting device is fixedly connected to the middles of the upper ends of side plates of the two conveying devices jointly, linkage rods are movably connected to the interiors of two rectangular openings in the adjusting device, and limiting plates are connected to the lower ends of the two rectangular openings in the adjusting device.

Description

Technical Field

[0001] The utility model relates to the field of detection devices, in particular to a light guide plate defect detection device. Background Art

[0002] The light guide plate is made of optical grade acrylic as the base material. It uses display screen and backlight module technology. Through the full high transmittance of the light guide point, the light of the light guide plate is converted into a uniform light state of the surface light source through the computer design of the light guide point. The working principle is: the reflection points close to the light sources on both sides of the light guide plate are small and round and the spacing is sparse, while the reflection points in the middle of the light guide plate are dense and thick and roughly elliptical. When the light enters the light guide plate from the light sources on both sides and hits the reflection point, it is diffusely reflected to the surface of the light guide plate: the other part is the light directly penetrating the light guide plate to reach the surface. The closer the light source is to the light guide plate, the stronger the direct light is, and the farther away it is, the weaker it is; on the other hand, the reflection points close to the light source are small and sparse, and the diffusely reflected light is less. On the contrary, the thick and dense points of the distant light source reflect more abundant light. After these lights are complexly integrated, the effect of uniform brightness of the entire light guide plate is achieved.

[0003] Most existing defect detection devices require manual placement of light guide plates on the detection device for flatness detection of light guide plates, resulting in low detection efficiency. Therefore, the market is in urgent need of developing a light guide plate defect detection device to help people solve existing problems. Utility Model Content

[0004] The utility model aims to provide a light guide plate defect detection device to solve the problem that the existing defect detection devices mentioned in the above background technology require manual placement of light guide plates on the detection device one by one for detection during flatness detection of light guide plates, resulting in low detection efficiency.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a light guide plate defect detection device, comprising a conveying device, wherein the front and rear ends of the conveying device are fixedly connected to the conveying device side plates, one side of the middle of the upper end of the two conveying device side plates is fixedly connected to a fixed shaft, the upper ends of the two fixed shafts are fixedly connected to a limiting plate, the two fixed shafts are rotatably connected to a rotating tube, one side of the two rotating tubes is fixedly connected to a guide plate, the other side of the middle of the upper end of the two conveying device side plates is commonly fixedly connected to a detection device, a detection groove is provided at the lower end of the detection device, and the detection A plurality of infrared probes are fixedly connected to the upper end surface of the detection groove of the device at equal intervals, a display is fixedly connected to the front end of the detection device, an adjustment device is fixedly connected to the middle of the upper ends of the two conveying device side plates, rectangular limit grooves are arranged at both the front and rear ends of the middle part of the adjustment device, rectangular openings are arranged between the lower ends of the two rectangular limit grooves and the lower end surface of the adjustment device, a transmission shaft is rotatably connected between the middle parts of the two rectangular limit grooves, linkage rods are movably connected in the two rectangular openings on the adjustment device, and the lower ends of the two rectangular openings on the adjustment device are connected to limit plates.

[0006] Preferably, a first threaded portion and a second threaded portion are respectively arranged inside two rectangular limit grooves on both sides of the transmission shaft, and the first threaded portion and the second threaded portion are arranged in a parallel manner. The front end of the transmission shaft passes through the front end face of the adjustment device and is fixedly connected with a knob.

[0007] Preferably, the upper ends of the two linkage rods extend to the inside of the two rectangular limiting grooves respectively and are fixedly connected with threaded sliders, and the threaded sliders on the two linkage rods are threadedly connected to the first threaded portion and the second threaded portion on the transmission shaft respectively.

[0008] Preferably, sliding grooves are arranged inside the two limiting plates, and rectangular limiting sliding grooves are arranged at the lower ends of the two sliding grooves.

[0009] Preferably, rectangular openings are extended from the lower ends of the two linkage rods and respectively pass through the sliding grooves on the two limiting plates to extend into the interior of the rectangular limiting sliding grooves and are fixedly connected with rectangular limiting plates.

[0010] Preferably, a connecting groove is provided in the middle of one side of the two limit plates, and a rotating connecting part is fixedly connected to the middle of the other end of the two guide plates.

[0011] Preferably, the rotatable connecting parts on the two guide plates are respectively inserted into the connecting grooves on one side of the two limiting plates and are rotatably connected through the first rotating shaft.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. In the utility model, through the setting of the conveying device, the front and rear ends of the conveying device are fixedly connected with the conveying device side plates, the other side of the middle of the upper ends of the two conveying device side plates is commonly fixedly connected with the detection device, the lower end of the detection device is provided with a detection groove, and the upper end surface of the detection groove of the detection device is fixedly connected with a plurality of infrared probes at equal intervals, and the front end of the detection device is fixedly connected with a display, and the light guide plate is continuously placed on the conveying device, and the conveying device drives the light guide plate to move and after the posture is adjusted by the adjustment device, it is conveyed to the lower end of the detection device, and the flatness of the light guide plate is detected by the plurality of infrared probes at the lower end of the detection device, and the front end of the detection device is fixedly connected with a display, and the data detected by the infrared probe will be fed back to the display, which is convenient for personnel to observe and realize continuous detection of the flatness of the light guide plate.

[0014] 2. In the utility model, through the setting of the adjustment device, the middle part of the upper end of the two conveying device side plates is fixedly connected with the adjustment device, and rectangular limit grooves are provided at the front and rear ends of the middle part inside the adjustment device, and rectangular openings are provided between the lower ends of the two rectangular limit grooves and the lower end surface of the adjustment device. Linkage rods are movably connected in the two rectangular openings on the adjustment device, and the two limit plates are respectively driven by the two linkage rods to move relative to each other at the lower end of the adjustment device, so that the linkage rod can move in the sliding groove, and at the same time, the rectangular limit pieces are inserted into the rectangular limit sliding grooves to prevent the limit plates from rotating on the linkage rods, and the front and rear ends of the light guide plate are limited by the two limit plates, so that the light guide plate is kept in the middle of the upper end of the conveying device, ensuring that the conveying device drives the light guide plate to move to the lower end of the detection device in the middle position, which is convenient for the detection device to detect.

[0015] 3. In the utility model, through the setting of the guide plate, a fixed shaft is fixedly connected to one side of the middle part of the upper end of the two conveying device side plates, and a rotating tube is rotatably connected to the two fixed shafts. A guide plate is fixedly connected to one side of the two rotating tubes. The rotating connecting parts on the two guide plates are respectively inserted into the connecting grooves on one side of the two limit plates and are rotatably connected through the first rotating shaft, so that the guide plate is driven to deflect when the limit plate moves, which is convenient for guiding light guide plates of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view of a light guide plate defect detection device of the utility model;

[0017] Figure 2 It is a top view of the utility model;

[0018] Figure 3 It is the main sectional view of the utility model;

[0019] Figure 4 It is a side view of the detection device of the utility model;

[0020] Figure 5It is a side sectional view of the adjustment device of the utility model;

[0021] Figure 6 It is an enlarged view of the detail A of the present utility model.

[0022] In the figure: 1. conveying device; 101. conveying device side plate; 102. fixed shaft; 103. limit plate; 2. detection device; 201. detection slot; 202. infrared probe; 203. display; 3. rotating tube; 301. guide plate; 302. rotating connecting part; 303. first rotating shaft; 4. adjustment device; 401. rectangular limit slot; 402. rectangular opening; 5. transmission shaft; 501. first threaded part; 502. second threaded part; 503. knob; 6. linkage rod; 601. threaded slider; 602. rectangular limit plate; 7. limit plate; 701. sliding slot; 702. rectangular limit sliding slot; 703. connecting slot. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] See also Figure 1-6 The utility model provides an embodiment: a light guide plate defect detection device, including a conveying device 1, the front and rear ends of the conveying device 1 are fixedly connected with a conveying device side plate 101, one side of the middle of the upper end of the two conveying device side plates 101 is fixedly connected with a fixed shaft 102, the upper ends of the two fixed shafts 102 are fixedly connected with a limiting plate 103, the two fixed shafts 102 are rotatably connected with a rotating tube 3, one side of the two rotating tubes 3 is fixedly connected with a guide plate 301, the other side of the upper middle end of the two conveying device side plates 101 is commonly fixedly connected with a detection device 2, the lower end of the detection device 2 is provided with a detection slot 201, the detection slot 2 of the detection device 2 01, a plurality of infrared probes 202 are fixedly connected to the upper end surface at equal intervals, a display 203 is fixedly connected to the front end of the detection device 2, an adjustment device 4 is fixedly connected to the middle of the upper ends of the two conveying device side panels 101, rectangular limit grooves 401 are arranged at both the front and rear ends of the middle part of the interior of the adjustment device 4, rectangular openings 402 are arranged between the lower ends of the two rectangular limit grooves 401 and the lower end surface of the adjustment device 4, a transmission shaft 5 is rotatably connected to the middle parts of the two rectangular limit grooves 401, a linkage rod 6 is movably connected in the two rectangular openings 402 on the adjustment device 4, and a limiting plate 7 is connected to the lower ends of the two rectangular openings 402 on the adjustment device 4.

[0025] Furthermore, a first threaded portion 501 and a second threaded portion 502 are respectively arranged inside two rectangular limit grooves 401 on both sides of the transmission shaft 5. The first threaded portion 501 and the second threaded portion 502 are arranged in a manner that the front end of the transmission shaft 5 passes through the front end surface of the adjustment device 4 and is fixedly connected with a knob 503. The transmission shaft 5 is driven to rotate by rotating the knob 503.

[0026] Furthermore, the upper ends of the two linkage rods 6 extend to the inside of the two rectangular limit grooves 401 and are fixedly connected with threaded sliders 601. The threaded sliders 601 on the two linkage rods 6 are threadedly connected to the first threaded portion 501 and the second threaded portion 502 on the transmission shaft 5 respectively. The rotation of the transmission shaft 5 simultaneously drives the two threaded sliders 601 to move relative to each other in the two rectangular limit grooves 401.

[0027] Furthermore, the two limiting plates 7 are each provided with a sliding groove 701 inside, and the lower ends of the two sliding grooves 701 are each provided with a rectangular limiting sliding groove 702 .

[0028] Furthermore, rectangular openings 402 are extended from the lower ends of the two linkage rods 6 and respectively pass through the sliding grooves 701 on the two limit plates 7 to extend into the interior of the rectangular limit slots 702 and are fixedly connected with rectangular limit pieces 602. The two linkage rods 6 respectively drive the two limit plates 7 to move relative to each other at the lower end of the adjustment device 4, so that the linkage rod 6 can move in the sliding grooves 701. At the same time, the rectangular limit pieces 602 are inserted into the rectangular limit slots 702 to prevent the limit plates 7 from rotating on the linkage rods 6. The front and rear ends of the light guide plate are limited by the two limit plates 7, so that the light guide plate remains in the middle of the upper end of the conveying device 1, ensuring that the conveying device 1 is in the middle position when driving the light guide plate to move to the lower end of the detection device 2, which is convenient for the detection device 2 to detect.

[0029] Furthermore, a connecting groove 703 is provided in the middle of one side of the two limiting plates 7 , and a rotating connecting part 302 is fixedly connected to the middle of the other end of the two guide plates 301 .

[0030] Furthermore, the rotating connecting parts 302 on the two guide plates 301 are respectively inserted into the connecting grooves 703 on one side of the two limiting plates 7 and are rotatably connected through the first rotating shaft 303, so that when the limiting plates 7 move, the guide plates 301 are driven to deflect to facilitate guiding light guide plates of different sizes.

[0031] Working principle: When in use, according to the size of the light guide plate, the rotating knob 503 drives the transmission shaft 5 to rotate. The rotation of the transmission shaft 5 drives the two threaded sliders 601 to move relatively in the two rectangular limit grooves 401 respectively, so that the two linkage rods 6 respectively drive the two limit plates 7 to move relatively at the lower end of the adjustment device 4, and adjust the distance between the two limit plates 7. The limit plate 7 can limit the front and rear ends of the light guide plate on the conveying device 1. The rotating connecting parts 302 on the two guide plates 301 are respectively inserted into the connecting grooves 703 on one side of the two limit plates 7 and pass through the first rotating shaft 30 3 is rotatably connected, so that when the limit plate 7 moves, the guide plate 301 is driven to deflect, so as to guide the light guide plates of different sizes to between the two limit plates 7, and the light guide plates are continuously placed on the conveying device 1. The conveying device 1 drives the light guide plates to move, and after the posture is adjusted by the adjusting device 4, the light guide plates are conveyed to the lower end of the detection device 2. The flatness of the light guide plates is detected by multiple infrared probes 202 at the lower end of the detection device 2. A display 203 is fixedly connected to the front end of the detection device 2, and the data detected by the infrared probe 202 will be fed back to the display 203, which is convenient for personnel to observe.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A light guide plate defect detection device, comprising a conveying device (1), characterized in that: The front and rear ends of the conveying device (1) are fixedly connected to conveying device side plates (101); one side of the middle of the upper ends of the two conveying device side plates (101) is fixedly connected to a fixed shaft (102); the upper ends of the two fixed shafts (102) are fixedly connected to a limiting plate (103); the two fixed shafts (102) are rotatably connected to a rotating tube (3); one side of the two rotating tubes (3) is fixedly connected to a guide plate (301); the other side of the middle of the upper ends of the two conveying device side plates (101) is commonly fixedly connected to a detection device (2); the lower end of the detection device (2) is provided with a detection slot (201); the upper end surface of the detection slot (201) of the detection device (2) is fixedly connected to a plurality of infrared sensors at equal intervals. The detection device (202) is fixedly connected to a display (203) at the front end thereof; an adjustment device (4) is fixedly connected to the middle of the upper ends of the two conveying device side plates (101); rectangular limit grooves (401) are arranged at both the front and rear ends of the middle part of the adjustment device (4); rectangular openings (402) are arranged between the lower ends of the two rectangular limit grooves (401) and the lower end surface of the adjustment device (4); a transmission shaft (5) is rotatably connected to the middle parts of the two rectangular limit grooves (401); linkage rods (6) are movably connected to the two rectangular openings (402) on the adjustment device (4); and limit plates (7) are connected to the lower ends of the two rectangular openings (402) on the adjustment device (4).

2. The light guide plate defect detection device according to claim 1, characterized in that: A first threaded portion (501) and a second threaded portion (502) are respectively arranged inside two rectangular limiting grooves (401) on both sides of the transmission shaft (5), and the first threaded portion (501) and the second threaded portion (502) are arranged in a parallel manner. The front end of the transmission shaft (5) passes through the front end surface of the adjustment device (4) and is fixedly connected to a knob (503).

3. The light guide plate defect detection device according to claim 1, characterized in that: The upper ends of the two linkage rods (6) respectively extend into the interior of the two rectangular limiting grooves (401) and are fixedly connected with threaded sliders (601); the threaded sliders (601) on the two linkage rods (6) are respectively threadedly connected to the first threaded portion (501) and the second threaded portion (502) on the transmission shaft (5).

4. The light guide plate defect detection device according to claim 1, characterized in that: The two limiting plates (7) are each provided with a sliding groove (701) inside, and the lower ends of the two sliding grooves (701) are each provided with a rectangular limiting sliding groove (702).

5. The light guide plate defect detection device according to claim 4, characterized in that: The lower ends of the two linkage rods (6) extend out of rectangular openings (402) and respectively pass through the sliding grooves (701) on the two limiting plates (7) to extend into the interior of the rectangular limiting sliding grooves (702) and are fixedly connected to rectangular limiting plates (602).

6. The light guide plate defect detection device according to claim 1, characterized in that: A connecting groove (703) is provided in the middle of one side of the two limit plates (7), and a rotating connecting part (302) is fixedly connected in the middle of the other end of the two guide plates (301).

7. The light guide plate defect detection device according to claim 6, characterized in that: The rotating connection parts (302) on the two guide plates (301) are respectively inserted into the connecting grooves (703) on one side of the two limit plates (7) and are rotationally connected through the first rotating shaft (303).

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