A flexible positioning device for a display screen of a liquid crystal transfer machine

Abstract

The present invention relates to the technical field of liquid crystal display screens, and specifically to a flexible positioning device for a display screen of a liquid crystal transfer machine, comprising a placement table, a fixed plate for placing the liquid crystal display screen, and a floating table. A first cylinder is provided on the placement table, and a contact plate is provided on the telescopic shaft of the first cylinder. The floating table is fixedly provided on the placement table, and the fixed plate is fixedly provided on the steering block of the floating table. The liquid crystal display screen is placed on the fixed plate, and a second cylinder is provided on the placement table, and a contact plate is provided on the telescopic shaft of the second cylinder. The liquid crystal display screen is located between the contact plate and the contact plate, and the contact plate moves toward one side of the liquid crystal display screen. The present invention has the effect of facilitating the adjustment of the angle of the liquid crystal display screen.

Description

Technical Field

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

[0002] Liquid crystal display screens are a common display panel in daily life. After the LCD screens are produced, they are usually placed in cassettes for storage. The cassettes are transported and stored through transfer equipment. The cassettes can accommodate multiple LCD screens and store the LCD screens. The most common LCD screens now are clamped by a robot and inserted into the cassettes for storage.

[0003] A common method now is to place the LCD screen on a platform, adjust the direction of the LCD screen through human vision, and then drive the robot to pick up the LCD screen after adjusting the angle and position, and then put it into the cassette located in the transfer machine for storage.

[0004] Regarding the above technical conditions, there is also a defect that the accuracy of visually judging the direction of the LCD screen is low, and the angle of the LCD screen needs to be adjusted multiple times, which is time-consuming.

[0005] Based on this, the present invention designs a flexible positioning device for a display screen of a liquid crystal relay device to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a flexible positioning device for a liquid crystal relay device display screen to solve the above technical problems.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: A flexible positioning device for a display screen of a liquid crystal transfer machine includes a placement table, a fixed plate for placing the liquid crystal display screen, and a floating table, wherein a first cylinder is provided on the placement table, a contact plate is provided on the telescopic shaft of the first cylinder, the floating table is fixedly provided on the placement table, the fixed plate is fixedly provided on the steering block of the floating table, the liquid crystal display screen is placed on the fixed plate, a second cylinder is provided on the placement table, a contact plate is provided on the telescopic shaft of the second cylinder, the liquid crystal display screen is located between the contact plate and the contact plate, and the contact plate moves toward one side of the liquid crystal display screen.

[0008] By adopting the above technical solution, the LCD screen is placed on the fixed plate, and the first cylinder is driven to move the resistance plate toward the side of the contact plate. The resistance plate resists the LCD screen to rotate and move, and the floating platform forms the LCD screen. As the resistance plate continues to move, the side wall of the LCD screen close to the resistance plate gradually fits with the side wall of the resistance plate until it is completely fitted. The process is quick and simple, and the effect of conveniently adjusting the angle of the LCD screen is achieved.

[0009] Preferably, a suction nozzle is fixedly provided on the fixing plate, and the suction nozzle is adsorbed on the lower surface of the liquid crystal display screen.

[0010] By adopting the above technical solution, after the LCD screen is placed on the fixed plate, the suction nozzle can absorb the LCD screen, allowing the LCD screen to be stably placed on the fixed plate.

[0011] Preferably, a mounting plate is fixedly provided on the telescopic shaft of the first cylinder, a limiting groove is provided on the mounting plate, a moving block is fixedly provided on the resistance plate, a limiting block is fixedly provided on the moving block, the limiting block is located in the limiting groove, a connecting plate is fixedly provided on the resistance plate, a tightening hole is provided on the connecting plate, a tightening rod is threadedly connected to the tightening hole, and the tightening rod is in contact with the mounting plate.

[0012] By adopting the above technical solution, the movable block is moved according to the specifications of different LCD screens to adjust the position of the contact plate. After moving to the desired position, the clamping rod is rotated to clamp the mounting plate to fix the movable block, thereby achieving the effect of conveniently adjusting the position of the contact plate.

[0013] Preferably, a plurality of suction nozzles are provided on the fixing plate.

[0014] By adopting the above technical solution, multiple suction nozzles adsorb the LCD screen, which can further reduce the movement of the LCD screen and achieve the effect of stabilizing the LCD screen.

[0015] Preferably, a pick-and-place slot is provided on the fixing plate.

[0016] By adopting the above technical solution, when placing the LCD screen, the staff can conveniently place the LCD screen through the pick-and-place slot.

[0017] To sum up, the present application has the following beneficial technical effects: the LCD screen is placed on the fixed plate, the first cylinder is driven to move the contact plate toward the side of the contact plate, the contact plate rotates and moves against the LCD screen, and the floating platform forms the LCD screen. During the continuous movement of the contact plate, the side wall of the LCD screen close to the contact plate gradually fits with the side wall of the contact plate until it is completely fit. The process is quick and simple, and the effect of conveniently adjusting the angle of the LCD screen is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 Schematic diagram of the overall structure of the placement table in the first embodiment;

[0020] Figure 2 for Figure 1 A is an enlarged schematic diagram;

[0021] Figure 3 Schematic diagram of the nozzle installation in the first embodiment;

[0022] Figure 4 This is a schematic diagram of the installation of the third cylinder in the second embodiment;

[0023] Figure 5 for Figure 4 A magnified schematic diagram of B in the middle;

[0024] Figure 6 This is a schematic diagram of the position of the first infrared light emitter in the second embodiment;

[0025] Figure 7 for Figure 6 A magnified schematic diagram of C in the middle.

[0026] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0027] 1. Placement table; 2. Fixed plate; 3. Floating table; 4. First cylinder; 5. Mounting plate; 6. Horizontal plate; 7. Contact plate; 8. Moving block; 9. Limiting block; 10. Guide block; 11. Connecting plate; 12. Tightening hole; 13. Turning handle; 14. LCD screen; 15. Suction nozzle; 16. Second cylinder; 17. Connecting seat; 18. Contact plate; 19. Pick-up and place slot; 20. Placement plate; 21. First motor; 22. Connecting hole; 23. Positioning plate; 24. Rotating rod 25. Third cylinder; 26. Moving plate; 27. First infrared light emitter; 28. Mounting seat; 29. ​​Clearance hole; 30. First distance sensor; 31. Mounting hole; 32. Second distance sensor; 33. Detection plate; 34. Fourth cylinder; 35. Connecting block; 36. Second infrared light emitter; 37. Processor; 38. Controller; 39. Mounting port; 40. Third distance sensor; 41. Placement hole; 42. Fourth distance sensor; 43. Limiting groove. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making any creative efforts shall fall within the scope of protection of the present invention.

[0029] The following is combined with Figure 1-7 This application is described in further detail.

[0030] Reference Figure 1-Figure 3 A flexible positioning device for a liquid crystal transfer machine display screen includes a placement table 1, a fixed plate 2 for placing a liquid crystal display screen 14, and a floating table 3. The base of the floating table 3 is fixedly set on the placement table 1, and the fixed plate 2 is fixedly set on the steering block of the floating table 3. The model of the floating table 3 in this embodiment is (MACM6-30). A first cylinder 4 is provided on the placing table 1, and a mounting plate 5 is fixedly provided on the telescopic axis of the first cylinder 4, a horizontal plate 6 is fixedly provided on the mounting plate 5, a guide block 10 is fixedly provided on the horizontal plate 6, a limiting groove 43 is provided on the guide block 10, a contact plate 7 is provided on the horizontal plate 6, a moving block 8 is fixedly provided on the contact plate 7, a limiting block 9 is fixedly provided on the moving block 8, the limiting block 9 is located in the limiting groove 43, a connecting plate 11 is fixedly provided on the contact plate 7, a tightening hole 12 is provided on the connecting plate 11, a tightening rod (not shown in the figure) is threadedly connected to the tightening hole 12, a turning handle 13 is fixedly provided on the tightening rod, and the tightening rod is in contact with the horizontal plate 6.

[0031] Reference Figure 1-Figure 3 A suction nozzle 15 is fixedly provided on the fixed plate 2, and a suction pipe (not shown) is fixedly connected to the suction nozzle 15. Multiple suction nozzles 15 are provided on the fixed plate 2. After the LCD screen 14 is placed on the fixed plate 2, the suction pipe is opened to allow the suction nozzle 15 to suck air, thereby adsorbing the LCD screen 14 and preventing the LCD screen 14 from moving. The fixed plate 2 is set on the rotating block of the floating platform 3 and can rotate and move freely.

[0032] Reference Figure 1-Figure 3 After adjusting the position of the contact plate 7 according to the specifications of the LCD screen 14, the staff member places the LCD screen 14 on the fixed plate 2 and activates the first cylinder 4 to move the contact plate 7 toward the side of the LCD screen 14. The contact plate 7 moves against one side of the LCD screen 14. As the contact plate 7 continues to move, the side wall of the contact plate 7 facing the LCD screen 14 gradually aligns with the side wall of the LCD screen 14. After the contact plate 7 moves a certain distance, the contact plate 7 and the side wall of the LCD screen 14 are completely aligned. At this point, the direction of the LCD screen 14 has been adjusted. When the clamping claw grabs the LCD screen 14 and places it into the cassette, it ensures that the LCD screen 14 is inserted vertically into the slot of the cassette. The process is quick and simple, eliminating the need for manual multiple adjustments of the LCD screen 14, and achieving the effect of conveniently adjusting the angle of the LCD screen 14.

[0033] Reference Figure 1-Figure 3 When the contact plate 7 contacts the liquid crystal display screen 14 , the fixed plate 2 moves and rotates on the floating platform 3 , avoiding hard contact of the contact plate 7 and further reducing the effect of damage to the liquid crystal display screen 14 .

[0034] Reference Figure 1-Figure 3 A second cylinder 16 is provided on the placement table 1, and a connecting seat 17 is fixedly provided on the telescopic axis of the second cylinder 16, and a contact plate 18 is fixedly provided on the connecting seat 17. The LCD screen 14 is located between the contact plate 7 and the contact plate 18, and the contact plate 18 and the contact plate 7 are parallel to each other. After the contact plate 7 contacts the LCD screen 14 and adjusts the angle, the second cylinder 16 is driven to move the contact plate 18 toward the side of the LCD screen 14 until the contact plate 18 contacts the side wall of the LCD screen 14 away from the contact plate 7, so that the side wall of the contact plate 18 is completely attached to the side wall of the LCD screen 14, further calibrating the orientation of the LCD screen 14 to achieve the effect of improving accuracy.

[0035] Reference Figure 1-Figure 3 It should be noted that the purpose of adjusting the direction in this embodiment is to align the orientation angle of the LCD screen 14, not to adjust the specific position of the LCD screen 14. After the robot grabs it, it is ensured that the angle of the LCD screen 14 can be vertically inserted into the slot of the cartridge; when placing the LCD screen 14, the staff will place it at a reasonable angle based on the actual situation, and this angle will not deviate too much.

[0036] Reference Figure 1-Figure 3 A pick-up and placement groove 19 is provided on the fixing plate 2 . When placing the LCD screen 14 , the pick-up and placement groove 19 facilitates the staff to place the LCD screen 14 .

[0037] The operating principle of this embodiment is as follows: After adjusting the position of the contact plate 7 according to the specifications of the LCD screen 14, the operator places the LCD screen 14 on the fixed plate 2 and activates the first cylinder 4 to move the contact plate 7 toward the side of the LCD screen 14. The contact plate 7 moves against one side of the LCD screen 14. As the contact plate 7 continues to move, the side wall of the contact plate 7 facing the LCD screen 14 gradually aligns with the side wall of the LCD screen 14. After the contact plate 7 moves a certain distance, the contact plate 7 and the side wall of the LCD screen 14 are completely aligned. At this point, the orientation of the LCD screen 14 has been adjusted. When the gripper grasps the LCD screen 14 and places it into the cassette, the LCD screen 14 is inserted vertically into the slot of the cassette. This process is quick and simple, eliminating the need for manual multiple adjustments of the LCD screen 14, and achieving the effect of conveniently adjusting the angle of the LCD screen 14.

[0038] Reference Figure 4-Figure 7, the difference between the second embodiment and the first embodiment is that: a placing plate 20 is fixedly provided on the horizontal plate 6, a first motor 21 is fixedly provided on the placing plate 20, a connecting hole 22 is provided on the moving block 8, a positioning plate 23 is vertically fixedly provided on the contact plate 7, a rotating rod 24 is coaxially fixedly provided on the rotating shaft of the first motor 21, and the rotating rod 24 is threadedly connected to the connecting hole 22, a third cylinder 25 is fixedly provided on the horizontal plate 6, a moving plate 26 is fixedly provided on the telescopic shaft of the third cylinder 25, and a first infrared light emitter 27 is fixedly provided on the moving block 8; a mounting seat 28 is fixedly provided on the horizontal plate 6, a clearance hole 29 is provided on the mounting seat 28, a first distance sensor 30 is fixedly provided in the clearance hole 29, and a mounting hole 31 is provided on the positioning plate 23, a second distance sensor 32 is fixedly provided in the mounting hole 31, and the LCD screen 14 with the adjusted direction is located between the first distance sensor 30 and the second distance sensor 32;

[0039] Reference Figure 4-Figure 7 , the distance between the first distance sensor 30 and the liquid crystal display screen 14 is A, the distance between the second distance sensor 32 and the liquid crystal display screen 14 is B, a controller 38 and a processor 37 are provided on the horizontal plate 6, the processor 37 is electrically connected to the controller 38, the processor 37 is electrically connected to the first distance sensor 30 and the second distance sensor 32 respectively, and the controller 38 is electrically connected to the electric motor, and the controller 38 is electrically connected to the third cylinder 25; when A is not equal to B, the processor 37 sends a signal to the controller 38, allowing the controller 38 to control the first motor 21 to move so that A is equal to B; when A is equal to B, the processor 37 sends a signal to the controller 38, allowing the controller 38 to control the third cylinder 25 to extend and retract, so that the first infrared light emitter 27 moves to the center line of the first distance sensor 30 and the second distance sensor 32. At this time, the infrared light emitted by the first infrared light is the center line a, a is located on the upper surface of the liquid crystal display screen 14, and a is also one of the center lines of the liquid crystal display screen 14.

[0040] Reference Figure 4-Figure 7 A detection plate 33 is fixedly mounted on the placement table 1, a fourth air cylinder 34 is fixedly mounted on the detection plate 33, a connecting block 35 is fixedly mounted on the telescopic shaft of the fourth air cylinder 34, and a second infrared light emitter 36 is fixedly mounted on the connecting block 35. A mounting opening 39 is defined on the contact plate 18, a third distance sensor 40 is fixedly mounted in the mounting opening 39, a placement hole 41 is defined on the contact plate 7, a fourth sensor is fixedly mounted in the placement hole 41, the third distance sensor 40 is electrically connected to the processor 37, and the fourth distance sensor 42 is electrically connected to the processor 37. The fourth air cylinder 34 and the first air cylinder 4 are electrically connected to the controller 38.

[0041] Reference Figure 4-Figure 7, the distance between the third sensor and the LCD screen 14 is C, and the distance between the fourth sensor and the LCD screen 14 is D. When C is not equal to D, the processor 37 sends a signal to the controller 38, allowing the controller 38 to control the first cylinder 4 to move so that C is equal to D; when C is equal to D, the processor 37 sends a signal to the controller 38, allowing the controller 38 to control the fourth cylinder 34 to extend and retract, allowing the second infrared light emitter 36 to move to the center line of the third distance sensor 40 and the fourth distance sensor 42. At this time, the infrared light emitted by the second infrared light is the center line b, b is located on the upper surface of the LCD screen 14, and b is also one of the center lines of the LCD screen 14.

[0042] Reference Figure 4-Figure 7 , a and b are perpendicular to each other, and the intersection of a and b is the center point of the LCD screen 14 after adjusting its direction. When placing the LCD screen 14, the clamp grabs the center point of the LCD screen 14 and puts it into the cassette, which can improve the accuracy of the clamp grabbing while reducing the wear of the LCD screen 14.

[0043] Reference Figure 4-Figure 7 Note that a and b are the center points in this embodiment. The intersection can be adjusted to the desired position by adjusting the positions of a and b as needed. For example, the movement distance of the first infrared light emitter 27 is assuming that A is 2 cm, B is 2 cm, and the width of the LCD screen 14 is c, which is 16 mm. In this case, the position of a is (A + B + c) / 2 = (2 + 2 + 16) / 2 = 10 cm. The third cylinder 25 is then driven to horizontally move the first infrared emitter to a distance of 2310 cm from the positioning plate. The movement distance of the second infrared light emitter 36 follows a similar principle.

[0044] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0045] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0046] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A flexible positioning device for a display screen of a liquid crystal transfer machine, characterized in that: The invention comprises a placing table (1), a fixed plate (2) for placing a liquid crystal display screen (14), and a floating table (3); the placing table (1) is provided with a first cylinder (4); a contact plate (7) is provided on the telescopic shaft of the first cylinder (4); the floating table (3) is fixedly provided on the placing table (1); the fixed plate (2) is fixedly provided on the steering block of the floating table (3); the liquid crystal display screen (14) is placed on the fixed plate (2); the placing table (1) is provided with a second cylinder (16); a contact plate (18) is provided on the telescopic shaft of the second cylinder (16); the liquid crystal display screen (14) is located between the contact plate (7) and the contact plate (18). The contact plate (7) moves toward the side of the liquid crystal display screen (14) between the contact plates (18); a mounting plate (5) is fixedly provided on the telescopic shaft of the first cylinder (4); a limiting groove (43) is provided on the mounting plate (5); a moving block (8) is fixedly provided on the contact plate (7); a limiting block (9) is fixedly provided on the moving block (8); the limiting block (9) is located in the limiting groove (43); a connecting plate (11) is fixedly provided on the contact plate (7); a tightening hole (12) is provided on the connecting plate (11); a tightening rod is threadedly connected to the tightening hole (12); the tightening rod is in contact with the mounting plate (5); A placement plate (20) is fixedly provided on the horizontal plate (6), a first motor (21) is fixedly provided on the placement plate (20), a connection hole (22) is provided on the moving block (8), a positioning plate (23) is vertically fixedly provided on the contact plate (7), a rotating rod (24) is coaxially fixedly provided on the rotating shaft of the first motor (21), the rotating rod (24) is threadedly connected to the connection hole (22), a third cylinder (25) is fixedly provided on the horizontal plate (6), a moving plate is fixedly provided on the telescopic shaft of the third cylinder (25), and a first infrared light emitter (27) is fixedly provided on the moving block (8); A mounting seat (28) is fixedly provided on the horizontal plate (6), a clearance hole (29) is provided on the mounting seat (28), a first distance sensor (30) is fixedly provided in the clearance hole (29), and a mounting hole (31) is provided on the positioning plate (23), a second distance sensor (32) is fixedly provided in the mounting hole (31), and the liquid crystal display screen (14) with the adjusted direction is located between the first distance sensor (30) and the second distance sensor (32); The distance between the first distance sensor (30) and the liquid crystal display (14) is A, the distance between the second distance sensor (32) and the liquid crystal display (14) is B, a controller (38) and a processor (37) are provided on the horizontal plate (6), the processor (37) is electrically connected to the controller (38), the processor (37) is electrically connected to the first distance sensor (30) and the second distance sensor (32), the controller (38) is electrically connected to the first motor (21), and the controller (38) is electrically connected to the third cylinder (25); when A is not equal to B, the processor (37) sends a signal to the controller (38), allowing the controller (38) to control the first motor (21) to move so that A is equal to B; When A is equal to B, the processor (37) sends a signal to the controller (38), allowing the controller (38) to control the third cylinder (25) to extend and retract, so that the first infrared light emitter (27) moves to the center line of the first distance sensor (30) and the second distance sensor (32). At this time, the infrared light of the first infrared light emitter (27) is the center line a, which is located on the upper surface of the liquid crystal display (14) and is also one of the center lines of the liquid crystal display (14); a is fixedly provided on the placement table (1) A detection plate (33) is fixedly provided with a fourth cylinder (34), a connecting block (35) is fixedly provided on the telescopic shaft of the fourth cylinder (34), and a second infrared light emitter (36) is fixedly provided on the connecting block (35); a mounting opening (39) is provided on the contact plate (18), a third distance sensor (40) is fixedly provided in the mounting opening (39), a placement hole (41) is provided on the contact plate (7), a fourth distance sensor (42) is fixedly provided in the placement hole (41), and the third distance sensor (40) is fixedly provided in the third distance sensor (41). The sensor (40) is electrically connected to the processor (37), and the fourth distance sensor (42) is electrically connected to the processor (37). The fourth cylinder (34) and the first cylinder (4) are electrically connected to the controller (38). The distance between the third distance sensor (40) and the liquid crystal display (14) is C, and the distance between the fourth distance sensor (42) and the liquid crystal display (14) is D. When C is not equal to D, the processor (37) sends a signal to the controller (38), allowing the controller (38) to control the first cylinder ( 4) Move so that C is equal to D; when C is equal to D, the processor (37) sends a signal to the controller (38), allowing the controller (38) to control the fourth cylinder (34) to extend and retract, so that the second infrared light emitter (36) moves to the center line of the third distance sensor (40) and the fourth distance sensor (42). At this time, the infrared light of the second infrared light emitter (36) is the center line b, which is located on the upper surface of the liquid crystal display (14) and is also one of the center lines of the liquid crystal display (14).

2. The flexible positioning device for a display screen of a liquid crystal transfer machine according to claim 1, characterized in that: A suction nozzle (15) is fixedly provided on the fixing plate (2), and the suction nozzle (15) is adsorbed on the lower surface of the liquid crystal display screen (14).

3. The flexible positioning device for a display screen of a liquid crystal transfer machine according to claim 2, characterized in that: A plurality of the suction nozzles (15) are provided on the fixed plate (2).

4. The flexible positioning device for a display screen of a liquid crystal relay device according to claim 1, characterized in that: The fixing plate (2) is provided with a taking and placing groove (19).

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