An automatic detection device for liquid crystal screen

Abstract

The application discloses a kind of liquid crystal screen automation detection equipment, it is related to liquid crystal screen detection equipment technical field, solve the problem that test box or test cabinet cannot test simultaneously in prior art simultaneously electric test with huge volume, including the fixed frame of control console fixed connection, fixed frame is fixedly connected with the protective cover, protective cover is installed with liquid crystal screen, one side of liquid crystal screen is fixedly connected with the side plate of protective cover movable connection, this liquid crystal screen automation detection equipment, the surface of the liquid crystal screen to be tested is slowly humidified by the sponge roller, which can effectively simulate the immersion process, and the moving assembly is arranged to move the liquid crystal screen, which produces a relative motion effect. Therefore, during detection, it is moved into the protective cover to control the electrical test, and after the electrical test is completed, it is moved out of the protective cover to continue the cycle experiment. Therefore, the problem of accepting test in the running process of the test screen in the prior art is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of liquid crystal screen automatic detection, in particular to a liquid crystal screen automatic detection equipment. BACKGROUND

[0002] Before the liquid crystal display screen is shipped, different kinds of tests need to be carried out to ensure that the display screen is reliable, stable and qualified in quality. Since the liquid crystal display screen is a box-shaped structure made of glass and liquid crystal material, it is limited by factors such as temperature and humidity, and general liquid crystal display screens will have product defects in terms of working temperature and storage temperature. Therefore, the reliability test of the LCD liquid crystal screen is particularly important.

[0003] The reliability test of the liquid crystal screen refers to the conditions under which the liquid crystal screen product is reliable and stable. Through the reliability test, the customer expresses approval of the durability and reliability of the display screen product. Before implementation, the components are exposed to adverse environments such as temperature and humidity. In order to make the product meet the expected function, a series of improvements need to be made to the product. The results of the liquid crystal screen reliability test (including numerical values) can be found in the product specification book for detailed information and data.

[0004] At present, the reliability test of the liquid crystal screen generally gives data through destructive experiments, but further non-destructive experimental data is also needed, for example, the working state of the liquid crystal screen under the process of simulating immersion, doing cycle experiments, testing the screen in its running process. The previous method is completed in a test room. Such a test box or test cabinet is bulky and requires a large floor area. At the same time, the operator needs to constantly complete the repeated actions of "taking out - wiring - electrical measurement - putting back - continuing testing", which cannot achieve the purpose of simultaneous testing and electrical measurement, and may be affected by the operator's misoperation, thereby affecting the operation of the production line. Therefore, we propose a liquid crystal screen automatic detection equipment. SUMMARY

[0005] The purpose of the present application is to provide a liquid crystal screen automatic detection equipment to solve the problems raised in the background art.

[0006] In order to achieve the above object, the present application provides the following technical scheme: a liquid crystal screen automatic detection equipment, including fixed frame, moving assembly, humidifying assembly and water supply assembly which are fixedly connected with the control console body, the fixed frame is fixedly connected with the protective cover, the liquid crystal screen is installed in the protective cover, one side of the liquid crystal screen is fixedly connected with the side plate which is movably connected with the protective cover, the moving assembly for moving the liquid crystal screen is installed in the protective cover and connected with the liquid crystal screen, the humidifying assembly for humidifying the liquid crystal screen is installed in the protective cover and connected with the moving assembly, the water supply assembly for supplying water to the humidifying assembly is installed in the protective cover and connected with the humidifying assembly.

[0007] Preferably, the moving assembly includes a threaded frame and a limiting frame, both of which are fixedly connected with the liquid crystal screen, and a threaded rod which is rotatably connected with the protective cover is threadedly connected with the threaded frame, a limiting rod which is fixedly connected with the protective cover is slidably connected with the limiting frame, one end of the threaded rod is fixedly connected with a first flat gear, and the outer side of the first flat gear is connected with a driving piece.

[0008] Preferably, the driving piece includes a motor which is fixed in the protective cover, an output end of the motor is fixedly connected with a shaft coupling, one end of the shaft coupling is fixedly connected with a driving shaft, one end of the driving shaft is fixedly connected with a second flat gear which is meshingly connected with the first flat gear, and the second flat gear is connected with the humidifying assembly.

[0009] Preferably, the humidifying assembly includes a sponge roller which is installed in the protective cover, the sponge roller is slidably connected with the water supply assembly and is in contact with the liquid crystal screen, a sleeve is fixedly connected with the inside of the sponge roller, a plurality of groups of through holes which are in communication with the sponge roller are formed in the outer surface of the sleeve, a first bevel gear is fixedly connected with the bottom end of the sleeve, a second bevel gear is meshed with the outer side of the first bevel gear, a connecting frame which is rotatably connected with the sleeve is rotatably connected with the second bevel gear, and a linkage which is connected with the second flat gear is connected with the second bevel gear.

[0010] Preferably, the linkage includes a third flat gear which is meshingly connected with the second flat gear, the third flat gear is rotatably connected with the protective cover and one end thereof is fixedly connected with a connecting shaft, one end of the connecting shaft is fixedly connected with a reciprocating screw rod which is slidably connected with the second bevel gear, a limiting groove is formed in the reciprocating screw rod, a limiting block which is fixedly connected with the second bevel gear is slidably connected in the limiting groove, and the reciprocating screw rod is threadedly connected with the connecting frame.

[0011] Preferably, the water supply assembly comprises a water tank fixed in the protective cover, a lower water hole is formed at the bottom end of the water tank, a water leakage pipe fixedly connected with the water tank is fixedly connected at the position of the lower water hole, a plurality of groups of water leakage grooves are formed on the water leakage pipe, the water leakage pipe is fixedly connected with a first spring, one end of the first spring is fixedly connected with a sealing block matched with the lower water hole, the bottom end of the sealing block is fixedly connected with a jacking rod, and the bottom end of the jacking rod is provided with a jacking piece connected with the sleeve.

[0012] Preferably, the jacking piece comprises a fixed block fixed in the sleeve, a guide plate is fixedly connected to the bottom end of the fixed block, and a second spring is fixedly connected to the top end of the fixed block, the top end of the second spring is fixedly connected with a movable block in sliding connection with the sleeve, and the water inlet holes in communication with the water tank are formed in the fixed block and the movable block.

[0013] Preferably, the top end of the guide plate is arc-shaped, so that water flows to the inner wall of the sleeve through the guide plate and then flows to the sponge roller from the through hole.

[0014] Preferably, the protective cover and the side plate are both provided with heat dissipation holes, so as to facilitate heat dissipation of the motor and the liquid crystal screen.

[0015] Compared with the prior art, the present application has the following advantages:

[0016] The sponge roller provided in the present application can effectively simulate the immersion process by slowly humidifying the surface of the liquid crystal screen to be tested, and the relative motion effect is generated by the moving assembly driving the liquid crystal screen to move, so that the liquid crystal screen is moved into the protective cover for electrical measurement during detection, and then moved out of the protective cover after electrical measurement, and the cycle experiment is continued, thereby solving the problem of the test screen being tested during its operation in the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of the present application;

[0019] Figure 3 It is a schematic diagram of the structure of the present application after removing the protective cover;

[0020] Figure 4 It is a schematic diagram of the connection structure of the moving assembly and the liquid crystal screen of the present application;

[0021] Figure 5 It is a schematic diagram of the connection structure of the humidifying assembly and the water supply assembly of the present application Figure 4 A schematic diagram of the structure of the present application in area A;

[0022] Figure 6 It is a schematic diagram of the connection structure of the humidifying assembly and the water supply assembly of the present application

[0023] Figure 7 For the present application Figure 6 The structure schematic view of B area in the present application;

[0024] Figure 8 The structure schematic view of the reciprocating wire rod and the second bevel gear connecting structure in the present application;

[0025] Figure 9 The structure schematic view of the water supply assembly and the sleeve connecting structure in the present application;

[0026] Figure 10 For the present application Figure 9 The structure schematic view of C area in the present application;

[0027] Figure 11 The structure schematic view of the top moving assembly and the water supply assembly connecting structure in the present application.

[0028] In the figure: 1-fixed frame; 2-protection cover; 3-liquid crystal screen; 4-side plate; 5-moving assembly; 6-humidifying assembly; 7-water supply assembly; 8-threaded frame; 9-limiting frame; 10-threaded rod; 11-limiting rod; 12-first spur gear; 13-driving piece; 14-motor; 15-coupling; 16-driving shaft; 17-second spur gear; 18-sponge roller; 19-sleeve; 20-through hole; 21-first bevel gear; 22-connecting frame; 23-second bevel gear; 24-linkage; 25-third spur gear; 26-connecting shaft; 27-reciprocating wire rod; 28-limiting groove; 29-limiting block; 30-water tank; 31-drainage hole; 32-leakage pipe; 33-drainage groove; 34-first spring; 35-sealing block; 36-topping piece; 37-fixed block; 38-duct plate; 39-second spring; 40-moving block; 41-topping rod; 42-water inlet hole; 43-radiating hole. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be described clearly and completely below with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work are within the protection scope of the present application.

[0030] Embodiment 1

[0031] Please refer to Figure 1 and Figure 2The embodiment 1 is illustrated in the figure, which shows an automatic detection equipment for liquid crystal screen, including a fixed frame 1 fixedly connected with a control console body, a moving assembly 5 and a humidifying assembly 6, the fixed frame 1 is fixedly connected with a protective cover 2, the protective cover 2 is internally installed with a liquid crystal screen 3, one side of the liquid crystal screen 3 is fixedly connected with a side plate 4 movably connected with the protective cover 2, the moving assembly 5 for moving the liquid crystal screen 3 is installed in the protective cover 2 and connected with the liquid crystal screen 3, the humidifying assembly 6 for humidifying the liquid crystal screen 3 is installed in the protective cover 2 and connected with the moving assembly 5, a water supply assembly 7 for supplying water to the humidifying assembly 6 is installed in the protective cover 2 and connected with the humidifying assembly 6;

[0032] Please refer to Figure 3 and Figure 4 , the moving assembly 5 in the figure includes a threaded frame 8 and a limiting frame 9, the threaded frame 8 and the limiting frame 9 are both fixedly connected with the liquid crystal screen 3, and a threaded rod 10 movably connected with the protective cover 2 is threadedly connected on the threaded frame 8, a limiting rod 11 fixedly connected with the protective cover 2 is slidingly connected on the limiting frame 9, a first flat gear 12 is fixedly connected on one end of the threaded rod 10, and a driving piece 13 is connected on the outer side of the first flat gear 12;

[0033] Please refer to Figure 3 and Figure 5 , the driving piece 13 in the figure includes a motor 14 fixed in the protective cover 2, a coupling 15 is fixedly connected on the output end of the motor 14, a driving shaft 16 is fixedly connected on one end of the coupling 15, a second flat gear 17 meshingly connected with the first flat gear 12 is fixedly connected on one end of the driving shaft 16, and the second flat gear 17 is connected with the humidifying assembly 6;

[0034] Please refer to Figure 3 , Figure 6 and Figure 7 , the humidifying assembly 6 in the figure includes a sponge roller 18 installed in the protective cover 2, the sponge roller 18 is slidingly connected with the water supply assembly 7 and is in contact with the liquid crystal screen 3, a sleeve 19 is fixedly connected in the interior of the sponge roller 18, a plurality of groups of through holes 20 in communication with the sponge roller 18 are formed on the outer surface of the sleeve 19, a first bevel gear 21 is fixedly connected on the bottom end of the sleeve 19, a second bevel gear 23 is meshed on the outer side of the first bevel gear 21, a connecting frame 22 rotatably connected with the sleeve 19 is rotatably connected on the second bevel gear 23, and a linkage 24 connected with the second flat gear 17 is connected on the second bevel gear 23;

[0035] Please refer to Figures 6-8The linkage 24 in the drawing includes a third spur gear 25 connected in mesh with the second spur gear 17, the third spur gear 25 is rotationally connected with the protective cover 2, and one end of the third spur gear 25 is fixedly connected with a connecting shaft 26, one end of the connecting shaft 26 is fixedly connected with a reciprocating screw rod 27 which is in sliding connection with the second bevel gear 23, the reciprocating screw rod 27 is provided with a limiting groove 28, and the limiting groove 28 is in sliding connection with a limiting block 29 which is fixedly connected with the second bevel gear 23, and the reciprocating screw rod 27 is in threaded connection with the connecting frame 22.

[0036] In the embodiment, when the liquid crystal screen 3 is to be detected, the liquid crystal screen 3 is located outside the protective cover 2, and when the detection instruction is inputted through the console, the motor 14 is started, and then the motor 14 drives the coupling 15 to rotate, and then drives the driving shaft 16 to rotate, and then drives the second spur gear 17 to rotate, and then drives the first spur gear 12 to rotate, and then drives the threaded rod 10 to rotate, and due to the existence of the limiting frame 9 and the limiting rod 11, the threaded rod 10 drives the threaded frame 8 to move when rotating, and then drives the liquid crystal screen 3 to move, so that the liquid crystal screen 3 is moved into the protective cover 2, and when the liquid crystal screen 3 is completely moved into the protective cover 2, the side plate 4 seals the protective cover 2.

[0037] In the embodiment, when the second spur gear 17 rotates, the third spur gear 25 is driven to rotate, and then the connecting shaft 26 is driven to rotate, and then the reciprocating screw rod 27 is driven to rotate, so that the connecting frame 22 is driven to move, and then the sleeve pipe 19 is driven to move, and then the sponge roller 18 is driven to move, so that the liquid crystal screen 3 is humidified, and when the reciprocating screw rod 27 rotates, due to the action of the limiting block 29 and the limiting groove 28, the second bevel gear 23 is driven to rotate, and then the first bevel gear 21 is driven to rotate, and then the sleeve pipe 19 is driven to rotate, and then the sponge roller 18 is driven to rotate, so that the simulated water immersion effect is increased.

[0038] In the embodiment, when the liquid crystal screen 3 moves inward, the reciprocating screw rod 27 drives the sponge roller 18 to move outward at this time, so that the moving direction of the liquid crystal screen 3 is opposite to that of the sponge roller 18, and then the liquid crystal screen 3 is humidified, when the liquid crystal screen 3 moves to the inside of the protective cover 2, the sponge roller 18 is located at one side of the side plate 4 at this time, when the liquid crystal screen 3 moves to the outside of the protective cover 2, the humidifying roller is located away from the side plate 4 at this time, when the humidifying roller is located away from the side plate 4, the water supply assembly 7 supplies water to the sponge roller 18.

[0039] In the embodiment, the motor 14 is preferably Y80M1-2 type, the power supply interface of the motor 14 is connected to the power supply system through a switch, the motor 14 running circuit is a conventional motor forward and reverse rotation control program, the circuit operation is a conventional circuit, the circuit and control involved in the scheme are prior art, and excessive details are not described herein.

[0040] Example 2

[0041] Please refer to Figures 9-11 As shown in the figure, the water supply assembly 7 comprises a water tank 30 fixed in the protective cover 2. A lower water hole 31 is formed in the bottom end of the water tank 30. A water leakage pipe 32 fixedly connected with the water tank 30 is fixed at the position of the lower water hole 31. A plurality of groups of water leakage grooves 33 are formed in the water leakage pipe 32. The water leakage pipe 32 is fixedly connected with a first spring 34. One end of the first spring 34 is fixedly connected with a sealing block 35 matched with the lower water hole 31. The bottom end of the sealing block 35 is fixedly connected with a top driving rod 41. The bottom end of the top driving rod 41 is provided with a top driving piece 36 connected with the sleeve 19.

[0042] Please refer to Figure 10 and Figure 11 As shown in the figure, the top driving piece 36 comprises a fixed block 37 fixed in the sleeve 19. A flow guide plate 38 is fixedly connected with the bottom end of the fixed block 37. The top end of the fixed block 37 is fixedly connected with a second spring 39. The top end of the second spring 39 is fixedly connected with a movable block 40 slidingly connected with the sleeve 19. The movable block 40 and the fixed block 37 are both provided with a water inlet hole 42 communicated with the water tank 30.

[0043] In this embodiment, when the sleeve 19 moves to the side away from the side plate 4, the movable block 40 is pushed out due to the action of the second spring 39 at this time, so that the movable block 40 is located in the lower water hole 31. The top end of the movable block 40 drives the top driving rod 41 at this time, thereby driving the sealing plate to move, so that the lower hole is opened. Therefore, the water in the water tank 30 flows into the lower water hole 31 through the water leakage grooves 33, and then enters the sleeve 19 through the water inlet hole 42. At this time, the water inlet hole 42 of the water bucket is in contact with the flow guide plate 38. Therefore, the flow guide plate 38 will guide the water to the inner wall of the sleeve 19, and then contact the sponge roller 18 through the through hole 20, so that the sponge roller 18 contacts the water, thereby slowly humidifying the surface of the liquid crystal screen 3, and simulating the water immersion process.

[0044] In this embodiment, during the movement of the sleeve 19, the movable block 40 will press the second spring 39 at this time, so that the movable block 40 is compressed into the sleeve 19, thereby not affecting the movement of the sleeve 19 driving the sponge roller 18. When the movable block 40 moves away from the lower water hole 31, the sealing block 35 is reset due to the action of the first spring 34 at this time, thereby sealing the lower water hole 31 with the sealing block 35. Therefore, the water is prevented from flowing into the protective cover 2.

[0045] Example 3

[0046] Please refer to Figure 1 and Figure 10 As shown in the figure, the top end of the flow guide plate 38 is arc-shaped. The protective cover 2 and the side plate 4 are both provided with a heat dissipation hole 43.

[0047] In this embodiment, the top end of the flow guide plate 38 is arc-shaped, which facilitates the water flow to the inner wall of the sleeve 19. The protective cover 2 and the side plate 4 are both provided with heat dissipation holes 43, which facilitates the heat dissipation of the motor 14 and the liquid crystal screen 3.

[0048] It is to be noted that the relative terms such as first and second, and the like, are used herein solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0049] While the embodiments of the application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. An automated testing device for LCD screens, characterized in that, include: A fixed frame (1) is fixedly connected to the control console body. A protective cover (2) is fixedly connected to the fixed frame (1). An LCD screen (3) is installed inside the protective cover (2). A side plate (4) that is movably connected to the protective cover (2) is fixedly connected to one side of the LCD screen (3). Also includes: The movable component (5) for moving the LCD screen (3) is installed inside the protective cover (2) and connected to the LCD screen (3); Humidification component (6), used to humidify the LCD screen (3), is installed inside the protective cover (2) and connected to the moving component (5); Water supply component (7), which is used to supply water to the humidification component (6), is installed inside the protective cover (2) and connected to the humidification component (6); The moving component (5) includes a threaded frame (8) and a limiting frame (9). Both the threaded frame (8) and the limiting frame (9) are fixedly connected to the LCD screen (3). The threaded frame (8) is threaded with a threaded rod (10) that is rotatably connected to the protective cover (2). The limiting frame (9) is slidably connected with a limiting rod (11) that is fixedly connected to the protective cover (2). One end of the threaded rod (10) is fixedly connected to a first spur gear (12). A driving component (13) is connected to the outside of the first spur gear (12). The drive unit (13) includes a motor (14) fixed inside the protective cover (2). The output end of the motor (14) is fixedly connected to a coupling (15). One end of the coupling (15) is fixedly connected to a drive shaft (16). One end of the drive shaft (16) is fixedly connected to a second spur gear (17) that meshes with the first spur gear (12). The second spur gear (17) is connected to the humidification assembly (6). The humidification component (6) includes a sponge roller (18) installed inside the protective cover (2). The sponge roller (18) is slidably connected to the water supply component (7) and is in contact with the LCD screen (3). A sleeve (19) is fixedly connected inside the sponge roller (18). Several sets of through holes (20) communicating with the sponge roller (18) are opened on the outer surface of the sleeve (19). A first bevel gear (21) is fixedly connected to the bottom end of the sleeve (19). A second bevel gear (23) meshes with the outer side of the first bevel gear (21). A connecting frame (22) rotatably connected to the sleeve (19) is rotatably connected to the second bevel gear (23). A linkage component (24) connected to the second flat gear (17) is connected to the second bevel gear (23). The linkage component (24) includes a third spur gear (25) meshing with the second spur gear (17). The third spur gear (25) is rotatably connected to the protective cover (2), and a connecting shaft (26) is fixedly connected to one end. A reciprocating screw (27) that is slidably connected to the second bevel gear (23) is fixedly connected to one end of the connecting shaft (26). A limit groove (28) is provided on the reciprocating screw (27). A limit block (29) that is fixedly connected to the second bevel gear (23) is slidably connected in the limit groove (28). The reciprocating screw (27) is threadedly connected to the connecting frame (22). The water supply assembly (7) includes a water tank (30) fixed inside the protective cover (2). A drain hole (31) is provided at the bottom of the water tank (30). A drain pipe (32) fixedly connected to the water tank (30) is located at the drain hole (31). Several sets of drain troughs (33) are provided on the drain pipe (32). A first spring (34) is fixedly connected to the drain pipe (32). A sealing block (35) adapted to the drain hole (31) is fixedly connected to one end of the first spring (34). A top-moving rod (41) is fixedly connected to the bottom of the sealing block (35). A top-moving member (36) connected to the sleeve (19) is provided at the bottom of the top-moving rod (41). The top actuating component (36) includes a fixed block (37) fixed inside the sleeve (19). The bottom end of the fixed block (37) is fixedly connected to a guide plate (38), and the top end is fixedly connected to a second spring (39). The top end of the second spring (39) is fixedly connected to a movable block (40) that is slidably connected to the sleeve (19). Both the movable block (40) and the fixed block (37) are provided with water inlet holes (42) that communicate with the water tank (30). The top of the guide plate (38) is arc-shaped; Both the protective cover (2) and the side plate (4) are provided with heat dissipation holes (43).

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