Liquid crystal display screen quality detection device

Abstract

The invention discloses a liquid crystal display screen quality detection device, and belongs to the technical field of liquid crystal display screens, the liquid crystal display screen quality detection device comprises a main body, the two sides of the main body are respectively provided with a feeding frame and a discharging frame, transplanting assemblies are fixedly installed in the main body, the feeding frame and the discharging frame, and a first push rod motor is fixedly installed in the main body and located on the outer side of the transplanting assemblies; an output shaft of the first push rod motor is connected with a positioning frame, a vertical rod is fixedly mounted at the top of the main body, a first screw rod is rotatably connected in the vertical rod, an extension rod is connected to the outer side of the first screw rod through threads, a lifting frame is fixedly mounted at the bottom of the extension rod, and a plurality of compression springs and a distance detector are arranged in the lifting frame; a pressing rod is connected to the bottom of the compression spring, a connecting rod is fixedly installed at the top end of the pressing rod, a second screw rod is rotationally connected into the main body, and a 3D altimeter is connected to the outer side of the second screw rod through threads. The device can automatically carry out detection and up-down material distribution work, is convenient to operate, greatly improves the working efficiency, and is very practical.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid crystal display screens, and in particular to a liquid crystal display screen quality detection device. Background Art

[0002] Liquid crystal display is a type of flat panel display, which is widely used in the screen display of televisions and computers. Liquid crystal display uses a liquid crystal solution in two polarized materials, so that when the current passes through the liquid, the crystal will be rearranged to achieve the purpose of imaging. Liquid crystal material is filled between these polarized materials. Liquid crystal is an organic compound composed of long rod-shaped molecules. In addition, the liquid crystal display also includes components such as backlight (such as fluorescent tubes or LEDs), light guide plates, polarizing plates, filter plates, glass substrates, and alignment films. The working principle is based on the photoelectric effect of liquid crystal molecules. When current passes through liquid crystal, the liquid crystal molecules will rearrange and change the propagation direction of light. By controlling the arrangement state of liquid crystal molecules, light shielding and light transmission can be achieved, thereby achieving the purpose of displaying images. Specifically, when the liquid crystal molecules are not affected by the electric field, the light will propagate in the direction of the arrangement of the liquid crystal molecules; when the liquid crystal molecules are affected by the electric field, their arrangement state will change, so that the light cannot propagate in the original direction, and then be blocked or change the propagation direction. The existing detection device can only perform a single detection and needs to be manually positioned, which has certain limitations. Therefore, it is necessary to design a liquid crystal display quality detection device to solve the problem. Summary of the invention

[0003] In view of the deficiencies of the prior art, the present invention provides a liquid crystal display screen quality detection device, which overcomes the deficiencies of the prior art and aims to solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a liquid crystal display screen quality inspection device, comprising a main body, a loading rack and a unloading rack are respectively arranged on both sides of the main body, and a transplanting assembly is fixedly installed in the main body, the loading rack and the unloading rack, a first push rod motor is fixedly installed in the main body on the outside of the transplanting assembly, and a positioning frame is connected to the output shaft of the first push rod motor, a vertical rod is fixedly installed on the top of the main body, and a first screw rod is rotatably connected in the vertical rod, an extension rod is threadedly connected to the outside of the first screw rod, and a lifting frame is fixedly installed on the bottom of the extension rod, A plurality of compression springs and distance detectors are arranged in the lifting frame, and a pressure rod is connected and installed at the bottom of the compression spring, a connecting rod is fixedly installed at the top of the pressure rod, a second screw is rotatably connected in the main body, and a 3D altimeter is connected to the outer side of the second screw through a thread, a second push rod motor is arranged in the unloading frame on one side of the transplanting component, and the output shaft of the second push rod motor is connected to the jacking frame, a guide frame is fixedly installed on the other side of the transplanting component, a slide is connected and installed on one side of the unloading frame, a display is fixedly installed on the top of the lifting frame, and a control panel is connected and installed on the top of the main body.

[0005] As a preferred technical solution of the present invention, two rotating shafts are rotatably connected in the transplanting component, and one side of one of the rotating shafts is connected to a driving motor through the transplanting component, and a conveyor belt is connected between the rotating shafts to control the movement of the LCD screen, thereby realizing automatic loading and unloading.

[0006] As a preferred technical solution of the present invention, there are four groups of first push rod motors, which are symmetrically distributed, so as to control the stable lifting and lowering of the liquid crystal display screen. The positioning frame adopts an L-shaped structural design, which can play the role of support and limitation at the same time.

[0007] As a preferred technical solution of the present invention, the compression spring is sleeved on the outside of the connecting rod, and a connecting groove adapted to the connecting rod is opened in the distance detector, and the flatness of the display screen is judged by the distance difference when the connecting rod enters the distance detector.

[0008] As a preferred technical solution of the present invention, the first screw and the second screw are both electric screws with motors, which are used to control the lifting and lowering of the lifting frame and the movement of the 3D altimeter, and dustproof pads are laid on the outside of the first screw and the second screw to play a protective role.

[0009] As a preferred technical solution of the present invention, a movable groove adapted to the 3D altimeter is provided in the main body, and a stopper is provided below the movable groove in the main body to prevent the display screen from colliding with the 3D altimeter.

[0010] As a preferred technical solution of the present invention, the jacking frame adopts a right-angle trapezoidal structure design, and one side of the unloading frame and the transplanting assembly is provided with an inclined groove connected to the guide frame to facilitate the display screen to slide into the landslide.

[0011] Beneficial effects of the present invention: The LCD screen is transported by using a transplanting assembly to complete the automatic loading and unloading work, and a second push rod motor and a lifting frame are provided to tilt the LCD screen by lifting, so that defective products are sent into the landslide and discharged, thereby realizing the separation of finished products and defective products; While positioning the LCD screen through the first push rod motor and the positioning frame, it can also be controlled to rise stably, so that it is convenient to use the lifting frame and the pressure rod to detect the flatness of the LCD screen, and it is also convenient for the 3D height gauge to perform pressure bearing capacity detection; The lifting frame is controlled to descend by the first screw rod, and the flatness is detected by the connecting rod and the distance detector. At the same time, pressure can be applied to the LCD screen through the pressure rod to facilitate the subsequent pressure detection work of the 3D altimeter. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the 3D structure of the present invention; Figure 2 It is a front view of the present invention; Figure 3 A top view of the present invention; Figure 4 is a side view of the present invention; Figure 5 It is a side structural schematic diagram of the present invention; Figure 6 It is a schematic diagram of the connection structure of A in the present invention.

[0013] In the figure: 1. main body; 2. loading rack; 3. unloading rack; 4. transplanting assembly; 5. rotating shaft; 6. driving motor; 7. conveyor belt; 8. first push rod motor; 9. positioning frame; 10. vertical rod; 11. first screw rod; 12. extension rod; 13. lifting frame; 14. compression spring; 15. pressure rod; 16. connecting rod; 17. distance detector; 18. second screw rod; 19. 3D altimeter; 20. second push rod motor; 21. lifting frame; 22. guide frame; 23. landslide; 24. display; 25. control panel. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0015] See also Figure 1 - Figure 6A liquid crystal display screen quality inspection device comprises a main body 1, a loading rack 2 and a unloading rack 3 are respectively arranged on both sides of the main body 1, and a transplanting assembly 4 is fixedly installed in the main body 1, the loading rack 2 and the unloading rack 3, two rotating shafts 5 are rotatably connected in the transplanting assembly 4, and one side of the rotating shaft 5 is connected to a driving motor 6 through the transplanting assembly 4, and a conveyor belt 7 is connected between the rotating shafts 5 for controlling the movement of the liquid crystal display screen, so as to realize automatic loading and unloading, a first push rod motor 8 is fixedly installed outside the transplanting assembly 4 in the main body 1, and a positioning frame 9 is connected to the output shaft of the first push rod motor 8, and the first push rod motor 8 has four groups, And they are symmetrically distributed, so as to control the stable lifting of the liquid crystal display screen. The positioning frame 9 adopts an L-shaped structural design, which can play the role of support and limit at the same time. A vertical rod 10 is fixedly installed on the top of the main body 1, and a first screw rod 11 is rotatably connected in the vertical rod 10. An extension rod 12 is threadedly connected to the outside of the first screw 11. A lifting frame 13 is fixedly installed at the bottom of the extension rod 12. A plurality of compression springs 14 and a distance detector 17 are arranged in the lifting frame 13, and a pressure rod 15 is connected to the bottom of the compression spring 14. A connecting rod 16 is fixedly installed on the top of the pressure rod 15. The compression spring 14 is sleeved on the outside of the connecting rod 16, and the distance A connecting groove adapted to the connecting rod 16 is provided in the detector 17, and the flatness of the display screen is judged by the distance difference between the connecting rod 16 and the detector 17. A second screw 18 is rotatably connected in the main body 1, and a 3D altimeter 19 is threadedly connected to the outer side of the second screw 18. The first screw 11 and the second screw 18 are both electric screws with motors, which are used to control the lifting frame 13 to lift and move the 3D altimeter 19, and dustproof pads are laid on the outer sides of the first screw 11 and the second screw 18 for protection. A moving groove adapted to the 3D altimeter 19 is provided in the main body 1, and the main body 1 is located at the moving A block is provided below the groove to prevent the display screen from colliding with the 3D altimeter 19, a second push rod motor 20 is provided in the unloading rack 3 on one side of the transplanting component 4, and the output shaft of the second push rod motor 20 is connected to the jacking frame 21, a guide frame 22 is fixedly installed on the other side of the transplanting component 4, a slide 23 is connected and installed on one side of the unloading rack 3, the jacking frame 21 adopts a right-angled trapezoidal structure design, and one side of the unloading rack 3 and the transplanting component 4 are provided with an inclined groove connected to the guide frame 22, which facilitates the display screen to slide into the slide 23, a display 24 is fixedly installed on the top of the lifting frame 13, and a control panel 25 is connected and installed on the top of the main body 1.

[0016] Working principle: When in use, place the LCD screen on the transplanting assembly 4, turn on the drive motor 6 through the control panel 25, use the rotating shaft 5 to rotate so that the drive motor 6 drives the LCD screen to move into the main body 1, turn on the first push rod motor 8, control the positioning frame 9 to rise and connect with the outside of the LCD screen for positioning, and continue to work at the same time, so that the LCD screen rises and connects with the block, turn on the second screw 18, control the 3D altimeter 19 to move and scan the height of the LCD screen, then turn on the first screw 11, control the lifting frame 13 to descend, let the pressure rod 15 connect with the LCD screen and retract, so that the connecting rod 16 enters the distance detection The 3D height gauge 19 moves and scans again, and compares it with the previous data to determine whether the height has changed, so as to detect the pressure bearing capacity of the LCD screen. After completion, the LCD screen descends and continues to be transported through the transplanting component 4. The finished product is discharged from the unloading rack 3, and the defective product is controlled by the second push rod motor 20 to control the lifting frame 21 to rise and tilt it, and is discharged along the guide frame 22 and the landslide 23.

[0017] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, 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 liquid crystal display screen quality inspection device, comprising a main body (1), characterized in that: A loading rack (2) and a unloading rack (3) are respectively arranged on both sides of the main body (1), and a transplanting assembly (4) is fixedly installed in the main body (1), the loading rack (2) and the unloading rack (3). A first push rod motor (8) is fixedly installed in the main body (1) outside the transplanting assembly (4), and a positioning rack (9) is connected to the output shaft of the first push rod motor (8). A vertical rod (10) is fixedly installed on the top of the main body (1), and a first screw rod (11) is rotatably connected in the vertical rod (10). An extension rod (12) is connected to the outside of the first screw rod (11) by a thread, and a lifting rack (13) is fixedly installed at the bottom of the extension rod (12), and a plurality of compression springs (14) and a distance detector (17) are arranged in the lifting rack (13). ), and a compression rod (15) is connected and installed at the bottom of the compression spring (14), and a connecting rod (16) is fixedly installed at the top of the compression rod (15), a second screw rod (18) is rotatably connected in the main body (1), and a 3D altimeter (19) is connected to the outer side of the second screw rod (18) through a thread, a second push rod motor (20) is arranged in the unloading frame (3) on one side of the transplanting component (4), and the output shaft of the second push rod motor (20) is connected to a lifting frame (21), and a guide frame (22) is fixedly installed on the other side of the transplanting component (4), a slide (23) is connected and installed on one side of the unloading frame (3), a display (24) is fixedly installed on the top of the lifting frame (13), and a control panel (25) is connected and installed on the top of the main body (1).

2. The device for detecting quality of a liquid crystal display screen according to claim 1, characterized in that: Two rotating shafts (5) are rotatably connected inside the transplanting assembly (4), and one side of one of the rotating shafts (5) is connected to a driving motor (6) via the transplanting assembly (4), and a conveyor belt (7) is connected between the rotating shafts (5).

3. The device for detecting quality of a liquid crystal display screen according to claim 1, characterized in that: The first push rod motors (8) have four groups and are symmetrically distributed, and the positioning frame (9) adopts an L-shaped structural design.

4. The device for detecting quality of a liquid crystal display screen according to claim 1, characterized in that: The compression spring (14) is sleeved on the outside of the connecting rod (16), and a connecting groove adapted to the connecting rod (16) is provided in the distance detector (17).

5. The device for detecting quality of a liquid crystal display screen according to claim 1, characterized in that: The first screw rod (11) and the second screw rod (18) are both electric screw rods with motors, and dustproof pads are laid on the outsides of the first screw rod (11) and the second screw rod (18).

6. The device for detecting quality of a liquid crystal display screen according to claim 1, characterized in that: The main body (1) is provided with a movable groove adapted to the 3D altimeter (19), and a stopper is provided below the movable groove in the main body (1).

7. The device for detecting quality of a liquid crystal display screen according to claim 1, characterized in that: The lifting frame (21) adopts a right-angled trapezoidal structure design, and one side of the unloading frame (3) and the transplanting assembly (4) is provided with an inclined groove connected to the guide frame (22).

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