Appearance detection device for liquid crystal screen

Abstract

The utility model discloses an appearance detection device for a liquid crystal screen, which comprises a first bearing plate, a second bearing plate and an operation table, a motor is arranged in the operation table, an output shaft is arranged above the motor, and the liquid crystal screen is placed on a turntable. According to the appearance detection device for the liquid crystal screen, the rotating disc and the operation table form a rotating structure through the output shaft and the sliding block under the action of the motor, so that the perpendicularity of the four sides of the liquid crystal screen can be conveniently detected through the rotating rotating disc; a concave fixing frame of the device and a supporting frame form a limiting sliding structure through a screw rod, a first sliding rod and a second movable block under the action of a first servo motor, and a fixing plate is inserted into a limiting hole in a penetrating mode through a connecting block and an elastic limiting block to form an elastic clamping limiting structure with the concave fixing frame. Therefore, the height of the cleaning cotton assembly can be conveniently adjusted according to the thickness of the liquid crystal screen, and then the surface of the liquid crystal screen can be cleaned through the cleaning assembly before the detector works, so that the detection effect of the device on the surface of the liquid crystal screen is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of glass storage, in particular to an appearance detection device for a liquid crystal screen. Background Art

[0002] Liquid crystal displays (LCDs), also known as "liquid crystal displays," are flat-panel display devices that display images by changing the optical properties of liquid crystal materials under the influence of an electric field. They offer advantages such as flat-panel display, low power consumption, and zero radiation, making them widely used in displays for electronic devices such as computers, televisions, and oscilloscopes. During the LCD production process, appearance testing is necessary to ensure both the aesthetics and subsequent performance of the LCD.

[0003] During the LCD screen appearance inspection process, the flatness of all four sides of the LCD screen must be manually inspected, while simultaneously using components such as cameras to check the LCD screen's surface smoothness and other properties. However, the existing LCD screen appearance inspection process, which relies solely on manual inspection of the edge flatness, is inconvenient, and impurities such as dust can easily affect the inspection results of the LCD screen surface. Therefore, a device for LCD screen appearance inspection is proposed to address these issues. Utility Model Content

[0004] The purpose of the present utility model is to provide an appearance inspection device for a liquid crystal display, so as to solve the problems raised in the above-mentioned background technology that, during the inspection process of the appearance of the existing liquid crystal display, it is inconvenient to inspect the flatness of the edge only by manual labor, and impurities such as external dust easily affect the inspection effect of the liquid crystal display surface.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: an appearance inspection device for a liquid crystal display screen, comprising an operating table, wherein the operating table is internally provided with a motor, and the motor is provided with an output shaft on the upper portion thereof, a turntable is provided on the upper end of the output shaft, and the turntable is embedded in the operating table, and the turntable is provided with multiple sets of sliders on the outer side thereof, and the sliders are respectively inserted into the operating table, and a liquid crystal display screen is placed on the turntable;

[0006] The operating table is provided with a support frame on the upper end surface, and a first servo motor is provided inside the horizontal plate of the support frame, one end of the output shaft of the first servo motor is connected to a screw through a coupling, and a first synchronous pulley is sleeved on the screw, and a second synchronous pulley is correspondingly provided on one side of the first synchronous pulley, and the first synchronous pulley and the second synchronous pulley are sleeved with a synchronous belt on the outer wall, a screw is also inserted in the second synchronous pulley, and a first sliding rod is correspondingly provided on the outer side of the screw, a first movable block and a second movable block are respectively inserted on the screw and the first sliding rod, and the second movable block The movable blocks are respectively provided with concave fixing frames at the bottom, and the concave fixing frames are interspersed with connecting blocks, and the connecting blocks are respectively provided with elastic limit blocks on the outer walls on both sides, and a plurality of groups of limit holes are evenly provided on the concave fixing frames, and the elastic limit blocks are interspersed in the corresponding limit holes, a fixing plate is provided between the connecting blocks, and a cleaning cotton is provided on the lower end surface of the fixing plate, a detector is provided at the rear of the fixing plate, a spray arm is provided between the concave fixing frames, and a plurality of groups of nozzles are evenly provided on the spray arm, a water inlet pipe is provided on the spray arm, and the other end of the water inlet pipe is connected to the water source through a water pump;

[0007] The first movable block is provided with a fixed frame at the bottom, and the fixed frame is provided with a second servo motor inside. One end of the output shaft of the second servo motor is connected to a bidirectional screw through a coupling, and a second sliding rod is provided correspondingly at the bottom of the bidirectional screw. The bidirectional screw and the second sliding rod are respectively interspersed with third movable blocks at both ends, and the third movable block is respectively provided with a fixed rod at the bottom, and a detection head is provided on one side of the fixed rod.

[0008] Preferably, the turntable forms a rotating structure through the output shaft, the slider and the operating table under the action of the motor.

[0009] Preferably, the concave fixing frame forms a limited sliding structure with the support frame through a screw, a first sliding rod, and a second movable block under the action of the first servo motor, and the fixing plate is inserted into the limiting hole through the connecting block and the elastic limiting block to form an elastic locking limiting structure with the concave fixing frame.

[0010] Preferably, the nozzle forms a communication structure with the water source through the water inlet pipe and the spray arm under the action of the water pump.

[0011] Preferably, the fixing rod forms a bidirectional limited sliding structure with the fixing frame through the bidirectional screw rod, the second sliding rod and the third movable block under the action of the second servo motor.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: the turntable of the appearance detection device of the LCD screen forms a rotating structure through the output shaft, the slider and the operating table under the action of the motor, so that the verticality of the four sides of the LCD screen can be detected by the rotating turntable. The concave fixed frame of the device forms a limited sliding structure with the support frame through the screw, the first slide bar and the second movable block under the action of the first servo motor, and the fixed plate is inserted into the limiting hole through the connecting block and the elastic limiting block to form an elastic locking limiting structure with the concave fixed frame, so that the height of the cleaning cotton component can be adjusted according to the thickness of the LCD screen, and then the surface of the LCD screen can be cleaned by the cleaning component before the detector works, so as to ensure the detection effect of the device on the surface of the LCD screen. The fixed rod of the device forms a bidirectional limited sliding structure with the fixed frame through the bidirectional screw, the second slide bar and the third movable block under the action of the second servo motor, so that the fixed rod can be attached to the outside of the LCD screen under the action of the second servo motor, so as to detect the verticality of the four sides of the LCD screen through the limited sliding fixed rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic structural diagram of a fixing rod assembly of a device for inspecting the appearance of a liquid crystal screen according to the present invention;

[0014] Figure 2 This is a schematic structural diagram of a cleaning cotton component of a device for inspecting the appearance of a liquid crystal screen according to the present invention;

[0015] Figure 3 This is a schematic diagram of the top view of the screw assembly of a liquid crystal screen appearance inspection device of the present utility model;

[0016] Figure 4 The figure is a side structural schematic diagram of an appearance detection device for a liquid crystal screen according to the present invention.

[0017] In the figure: 1. operating table, 2. motor, 3. turntable, 4. support frame, 5. first servo motor, 6. screw, 7. first slide bar, 8. first movable block, 9. second movable block, 10. synchronous belt, 11. concave fixing frame, 12. connecting block, 13. elastic limit block, 14. fixing plate, 15. cleaning cotton, 16. detector, 17. spray arm, 18. spray head, 19. fixing frame, 20. second servo motor, 21. bidirectional screw, 22. second slide bar, 23. third movable block, 24. fixing rod. DETAILED DESCRIPTION

[0018] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0019] See also Figure 1-4 The utility model provides a technical solution: an appearance inspection device for a liquid crystal screen, comprising an operating table 1, wherein the operating table 1 is provided with a motor 2 inside, and the motor 2 is provided with an output shaft on the top, a turntable 3 is provided at the upper end of the output shaft, and the turntable 3 is embedded in the operating table 1, and a plurality of sets of sliders are provided on the outside of the turntable 3, and the sliders are respectively inserted into the operating table 1, and a liquid crystal screen is placed on the turntable 3.

[0020] Furthermore, the turntable 3 forms a rotating structure through the output shaft, the slider and the operating table 1 under the action of the motor 2, so that it can be driven by the motor 2 to automatically rotate during the LCD screen detection process, thereby increasing the convenience of the LCD screen detection process.

[0021] The operating table 1 is provided with a support frame 4 on the upper end surface, and a first servo motor 5 is provided inside the horizontal plate of the support frame 4. One end of the output shaft of the first servo motor 5 is connected to a screw 6 through a coupling, and a first synchronous pulley is sleeved on the screw 6. A second synchronous pulley is correspondingly provided on one side of the first synchronous pulley, and a synchronous belt 10 is sleeved on the outer wall of the first synchronous pulley and the second synchronous pulley. A screw 6 is also inserted in the second synchronous pulley, and a first slide rod 7 is correspondingly provided on the outer side of the screw 6. The screw 6 and the first slide rod 7 are respectively The first movable block 8 and the second movable block 9 are inserted, and the second movable block 9 is provided with a concave fixing frame 11 at the bottom, and a connecting block 12 is inserted on the concave fixing frame 11, and the connecting block 12 is provided with elastic limit blocks 13 on the outer walls on both sides, and a plurality of groups of limit holes are evenly opened on the concave fixing frame 11, and the elastic limit blocks 13 are inserted in the corresponding limit holes, a fixing plate 14 is provided between the connecting blocks 12, and a cleaning cotton 15 is provided on the lower end surface of the fixing plate 14, and a detector 16 is provided at the rear of the fixing plate 14.

[0022] Furthermore, under the action of the first servo motor 5, the concave fixing frame 11 forms a limited sliding structure with the support frame 4 through the screw 6, the first slide bar 7, the second movable block 9, so that the cleaning component and the fixing rod 24 component can be limitedly slid through the first servo motor 5, so as to comprehensively inspect the appearance of the LCD screen, and the fixing plate 14 is inserted into the limiting hole through the connecting block 12 and the elastic limiting block 13 to form an elastic locking limiting structure with the concave fixing frame 11, so as to facilitate the adjustment of the height of the cleaning cotton 15 according to the thickness of the LCD screen, thereby ensuring that the cleaning cotton 15 can fit the surface of the LCD screen to clean it.

[0023] A spray arm 17 is provided between the concave fixing frames 11 , and a plurality of spray heads 18 are evenly provided on the spray arm 17 . A water inlet pipe is provided on the spray arm 17 , and the other end of the water inlet pipe is connected to a water source through a water pump.

[0024] Furthermore, under the action of the water pump, the nozzle 18 forms a connecting structure with the water source through the water inlet pipe and the spray arm 17, so that the nozzle 18 can increase the cleaning effect of the cleaning component on the surface of the LCD screen, further ensuring the detection effect of the device on the appearance of the LCD screen.

[0025] The first movable block 8 is provided with a fixed frame 19 at the bottom, and the fixed frame 19 is provided with a second servo motor 20 inside. One end of the output shaft of the second servo motor 20 is connected to the bidirectional screw 21 through a coupling, and the bidirectional screw 21 is provided with a second slide bar 22 at the bottom. The bidirectional screw 21 and the second slide bar 22 are respectively inserted with a third movable block 23 at both ends, and the third movable block 23 is respectively provided with a fixed rod 24 at the bottom, and the fixed rod 24 is provided with a detection head on one side.

[0026] Furthermore, under the action of the second servo motor 20, the fixed rod 24 forms a bidirectional limited sliding structure with the fixed frame 19 through the bidirectional screw 21, the second slide rod 22, the third movable block 23, so that the verticality detection of the four sides of LCD screens of different sizes is facilitated by the bidirectional limited sliding fixed rod 24.

[0027] Working principle: When using the appearance inspection device for LCD screens, first place the LCD screen to be inspected for appearance on the turntable 3. After the LCD screen is placed, the first servo motor 5 can be started. The output shaft of the first servo motor 5 drives the screw 6 to rotate through the coupling. The screw 6 drives another set of screws 6 to rotate synchronously through the first synchronous pulley, the second synchronous pulley, and the synchronous belt, and drives the fixed frame 19 to slide within a limited position under the action of the first slide bar 7 and the first movable block 8, so as to drive the fixed rod 24 to slide to one end of the LCD screen. After the fixed rod 24 moves, the second servo motor 20 can be started. The output shaft of the second servo motor 20 drives the bidirectional screw 21 to rotate through the coupling, and drives the fixed rod 24 to slide within a bidirectional limited position through the second slide bar 22 and the third movable block 23, so that the two sets of fixed rods 24 can fit on both sides of the LCD screen, thereby facilitating the appearance inspection of LCD screens of different sizes through the fixed rod 24. Then, the staff can press the LCD screen, and at the same time, the fixed rod 24 is driven by the first servo motor 5 to slide within a limited position. The LCD screen is moved so that the verticality of the outer side of the LCD screen can be detected through the fixing rod 24, and the fixing rod 24 can check the outer walls of the four sides of the LCD screen through the detection head during operation; during the detection process of the four sides of the LCD screen, the motor 2 can be started regularly, and the motor 2 drives the turntable 3 to rotate through the output shaft, so that the LCD screen can be automatically rotated by the turntable 3, thereby ensuring that the appearance of the four sides of the LCD screen can be inspected while increasing the convenience of the LCD screen detection process; during the appearance inspection of the LCD screen, the elastic limit block 13 can be pressed to adjust the position of the fixing plate 14 according to the thickness of the LCD screen, thereby ensuring that the cleaning cotton 15 can be attached to the surface of the LCD screen for cleaning. At the same time, the water pump can be started to increase the cleaning effect of the cleaning component on the surface of the LCD screen through the nozzle 18. During the movement of the cleaning cotton 15 component, the detector 16 moves synchronously, so that the appearance of the cleaned LCD screen is timely inspected by the detector 16, further ensuring the detection effect of the device on the appearance of the LCD screen. This is the use process of the appearance inspection device for the LCD screen.

[0028] 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 make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An appearance inspection device for a liquid crystal display, comprising an operating table (1), characterized in that: The operating table (1) is provided with a motor (2) inside, and the motor (2) is provided with an output shaft on the top, a turntable (3) is provided at the upper end of the output shaft, and the turntable (3) is embedded in the operating table (1), and a plurality of sets of sliders are provided on the outer side of the turntable (3), and the sliders are respectively inserted into the operating table (1), and a liquid crystal screen is placed on the turntable (3); The operating table (1) is provided with a support frame (4) on the upper end surface, and a first servo motor (5) is provided inside the horizontal plate of the support frame (4), one end of the output shaft of the first servo motor (5) is connected to the screw (6) through a coupling, and a first synchronous pulley is sleeved on the screw (6), and a second synchronous pulley is provided on one side of the first synchronous pulley, and the first synchronous pulley and the second synchronous pulley are sleeved with a synchronous belt (10) on the outer wall, and a screw (6) is also inserted in the second synchronous pulley, and a first slide bar (7) is provided on the outer side of the screw (6), and a first movable block (8) and a second movable block (9) are respectively inserted on the screw (6) and the first slide bar (7), and the second movable block (9) is respectively provided with a concave fixed A fixed frame (11) is provided, and a connecting block (12) is inserted into the concave fixing frame (11), and the connecting block (12) is provided with elastic limiting blocks (13) on both side outer walls respectively, and a plurality of limiting holes are evenly provided on the concave fixing frame (11), and the elastic limiting blocks (13) are inserted into the corresponding limiting holes, a fixing plate (14) is provided between the connecting blocks (12), and a cleaning cotton (15) is provided on the lower end surface of the fixing plate (14), and a detector (16) is provided at the rear of the fixing plate (14), a spray arm (17) is provided between the concave fixing frames (11), and a plurality of spray heads (18) are evenly provided on the spray arm (17), and a water inlet pipe is provided on the spray arm (17), and the other end of the water inlet pipe is connected to a water source through a water pump; The first movable block (8) is provided with a fixed frame (19) below, and the fixed frame (19) is provided with a second servo motor (20) inside, one end of the output shaft of the second servo motor (20) is connected to a bidirectional screw (21) through a coupling, and a second slide bar (22) is provided below the bidirectional screw (21), and the third movable block (23) is respectively inserted at both ends of the bidirectional screw (21) and the second slide bar (22), and the third movable block (23) is respectively provided with a fixed rod (24) below, and a detection head is provided on one side of the fixed rod (24).

2. The appearance inspection device for a liquid crystal display according to claim 1, characterized in that: The turntable (3) forms a rotating structure through the output shaft, the slider and the operating table (1) under the action of the motor (2).

3. The appearance inspection device for a liquid crystal display according to claim 1, characterized in that: The concave fixing frame (11) forms a limited sliding structure with the support frame (4) through the screw (6), the first slide bar (7), the second movable block (9) under the action of the first servo motor (5), and the fixing plate (14) is inserted into the limiting hole through the connecting block (12) and the elastic limiting block (13) to form an elastic locking limiting structure with the concave fixing frame (11).

4. The appearance inspection device for a liquid crystal display according to claim 1, wherein: Under the action of the water pump, the nozzle (18) forms a communication structure with the water inlet source through the water inlet pipe and the spray arm (17).

5. The appearance inspection device for a liquid crystal display according to claim 1, characterized in that: The fixed rod (24) forms a bidirectional limited sliding structure with the fixed frame (19) through the bidirectional screw (21), the second slide rod (22), the third movable block (23) under the action of the second servo motor (20).

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