Laser measuring device for LCD display screen and display screen manufacturing equipment

Abstract

The present invention provides a laser measuring device for LCD display screen and display screen manufacturing equipment, which relates to the field of laser measurement. The present invention includes a conveying device, a labeling device and a display screen, wherein two positioning structures are arranged on the top of the conveying device, wherein two guiding structures are arranged on the top of one positioning structure, and a driving structure is installed on the outside of the conveying device; the flatness of the upper and lower surfaces of the display screen is measured at one time, and when the flatness of the display screen does not meet the processing requirements, the human-computer interaction device controls the positioning structure to work in coordination with the guiding structure to discharge the display screen from the top of the conveying device, and controls the second electromagnet to work to ensure that the inner plate and the second friction plate are kept in a state of limiting and blocking the display screen that has not been measured; the situation of human naked eye judging the flatness is reduced, and human errors are eliminated, which can not only reduce measurement errors, but also reduce the ineffective processing costs of the display screen.

Description

Technical Field

[0001] The invention relates to a laser measuring device, in particular to a laser measuring device for an LCD display screen and display screen manufacturing equipment, belonging to the technical field of laser measuring. Background Art

[0002] Liquid crystal display, or LCD, is a flat ultra-thin display device, which consists of a certain number of color or black and white pixels, placed in front of a light source or a reflective surface. LCD has very low power consumption, so it is favored by engineers and is suitable for electronic devices using batteries. Its main principle is to stimulate the liquid crystal molecules with electric current to generate points, lines, and surfaces with the back light tube to form a picture.

[0003] After the LCD display is assembled, it is necessary to test the flatness of the LCD display to ensure the processing quality of the LCD display. The traditional testing method is to place a flatness ruler on the completed LCD display, estimate the maximum gap between the flatness ruler and the structural surface by visual inspection, and use a feeler gauge to measure the maximum gap, which is the flatness measurement value at that location. The measurement result is greatly affected by human factors and the speed is slow. Summary of the invention

[0004] In order to solve the above problems, the present invention is implemented by the following technical solutions: comprising a conveying device, two positioning structures are arranged on the top of the conveying device, and a driving structure is installed on the outside of the conveying device;

[0005] The positioning structure comprises a moving plate, a first friction plate is fixedly mounted on one side of the moving plate, an elastic air storage bag is arranged inside the first friction plate, an air pressure sensor is arranged on one side of the elastic air storage bag, a first electromagnet is arranged on one side of the moving plate, an auxiliary frame is arranged on one side of the first electromagnet, an inner plate is arranged inside the auxiliary frame, a second friction plate and a sliding rod are fixedly connected on both sides of the inner plate, and a second electromagnet and a mounting box are sequentially sleeved on the outer side of the sliding rod in a direction away from the auxiliary frame;

[0006] The driving structure includes a human-computer interaction device and a laser distance measuring instrument.

[0007] Preferably, the labeling device is fixedly installed on one side of the top of the conveying device, the display screen is arranged on the top of the conveying device and is transported by the conveying device to move inside the labeling device, and a plurality of support frames are fixedly connected to the bottom of the conveying device.

[0008] Preferably, the positioning structure also includes a first telescopic pneumatic cylinder and a second telescopic pneumatic cylinder, the second telescopic pneumatic cylinder is fixedly connected to the conveying equipment, the top of the second telescopic pneumatic cylinder is fixedly connected to a connecting cross plate, the connecting cross plate is fixedly connected to the outer wall of the first telescopic pneumatic cylinder, and the extending end of the first telescopic pneumatic cylinder is fixedly connected to the moving plate.

[0009] Preferably, one end of the elastic air storage bag is fixedly connected to a flared tube, the moving plate is provided with a mounting groove, the flared tube is arranged inside the mounting groove and fixedly connected to the moving plate, and the air pressure sensor is fixedly connected inside the flared tube.

[0010] Preferably, both sides of the first electromagnet are fixedly connected with insulating plates, the insulating plates are fixedly connected to the auxiliary frame, the second friction plate is arranged on a side of the inner plate close to the display screen, and the second friction plate passes through the auxiliary frame.

[0011] Preferably, the auxiliary frame has an empty slot on one side away from the second friction plate, one end of the sliding rod is arranged inside the empty slot, the installation box is fixedly connected to the side wall of the conveying equipment, and the second electromagnet is fixedly connected to one end of the installation box.

[0012] Preferably, a moving box is provided on the fixed sleeve outside the laser ranging instrument, and a reciprocating screw is installed on the moving box through a nut pair, and mounting ear plates are rotatably provided on both ends of the outer side of the reciprocating screw, and the mounting ear plates are fixedly connected to the conveying equipment, and one end of the reciprocating screw is fixedly connected to a driving motor, and a pad is fixedly connected between the driving motor and the conveying equipment, and a guide box is fixedly connected between the two mounting ear plates, and the guide box passes through the moving box, and a guide ring is fixedly installed inside the guide box, and a cable is fixedly installed between the human-computer interaction device and the laser ranging instrument, and the cable passes through the guide ring, and a limit block and a gravity block are provided on the fixed sleeve outside the cable, and the limit block is arranged inside the guide box, and the gravity block is arranged on the outer side of the cable near the human-computer interaction device.

[0013] Display manufacturing equipment includes labeling equipment and a display, wherein two guide structures are arranged on the top of a positioning structure, the guide structure includes a first inclined plate and a second inclined plate rotatably arranged on one side of the first inclined plate, and a torsion spring is installed between the first inclined plate and the second inclined plate.

[0014] Preferably, a first limiting vertical plate is fixedly connected to one side of the top of the first inclined plate, a second limiting vertical plate is fixedly connected to the top of the second inclined plate, the second limiting vertical plate is staggered with the first limiting vertical plate, a connecting pipe is arranged between the first inclined plate and the second inclined plate, one side of the connecting pipe is fixedly connected to the second inclined plate, and the bottom of the first inclined plate is fixedly connected to the limiting inclined plate.

[0015] Preferably, a fixed round rod is fixedly connected to the inside of the connecting tube, a mounting seat is rotatably sleeved on the outside of the fixed round rod, the mounting seat is fixedly connected to the first inclined plate, the first inclined plate is rotatably mounted with a mounting round rod, the torsion spring is fixedly connected between the fixed round rod and the mounting round rod, and a part of the torsion spring surrounds the outside of the mounting round rod.

[0016] The present invention provides a laser measuring device for LCD display screen and display screen manufacturing equipment, which have the following beneficial effects:

[0017] 1. The laser measuring device and display manufacturing equipment of the LCD display screen can measure the flatness of the upper and lower surfaces of the display screen at one time. When the flatness of the display screen does not meet the processing requirements, the human-machine interaction device controls the positioning structure to work in conjunction with the guide structure to discharge the display screen from the top of the conveying device, and controls the second electromagnet to ensure that the inner plate and the second friction plate remain in a state of limiting and blocking the display screen that has not been measured; before the labeling process of the labeling equipment that is relatively late in the display screen processing, the laser measurement of the flatness of the upper and lower surfaces of the display screen and the connection gap of the shell is automatically performed, reducing the human eye judgment of the flatness and eliminating human errors, which can not only reduce measurement errors, but also reduce the ineffective processing of the display screen and reduce the processing cost of the display screen.

[0018] 2. The laser measuring device and display manufacturing equipment of the LCD display screen, the positioning structure and the driving structure cooperate to collect the display problem data, while the positioning structure and the guiding structure cooperate to directly discharge the unqualified display screen, which can ensure the quality of display screen processing and reduce the ineffective work of the labeling equipment. The two moving plates move towards each other at a uniform speed when clamping the display screen, which can correct the position of the display screen and the labeling equipment, and ensure the quality of the display screen being labeled by the labeling equipment.

[0019] 3. The laser measuring device and display manufacturing equipment of the LCD display screen. During the measurement process of the display screen, with the cooperation of the first electromagnet, auxiliary frame, inner plate, second friction plate and other structures in the two positioning structures, the display screen that has not been inspected is limited and cannot move to the labeling equipment, and the conveying equipment can continue to work without stopping, reducing the time waste caused by a small proportion of unqualified display screens and reducing cost investment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the installation of the ear plate and the conveying equipment of the present invention;

[0022] Figure 3 It is a structural schematic diagram of the connecting pipe of the present invention;

[0023] Figure 4 is a schematic structural diagram of the first inclined plate of the present invention;

[0024] Figure 5 It is a schematic diagram of the structure of the sports board of the present invention;

[0025] Figure 6 It is a structural schematic diagram of connecting the horizontal plates of the present invention;

[0026] Figure 7 is a schematic structural diagram of the first friction plate of the present invention;

[0027] Figure 8 It is a partial structural schematic diagram of the expanded tube of the present invention;

[0028] Fig. 9 It is a structural schematic diagram of the auxiliary frame of the present invention;

[0029] Fig.10 It is a structural schematic diagram of the gravity block of the present invention;

[0030] Fig.11 It is a schematic structural diagram of the guide ring of the present invention.

[0031] Description of reference numerals: 1. conveying device; 2. support frame; 3. labeling device; 4. guiding structure; 401. first inclined plate; 402. first limit vertical plate; 403. second inclined plate; 404. second limit vertical plate; 405. mounting seat; 406. fixed round rod; 407. connecting pipe; 408. mounting round rod; 409. torsion spring; 410. limit inclined plate; 5. positioning structure; 501. moving plate; 502. first telescopic pneumatic cylinder; 503. connecting horizontal plate; 504. second telescopic pneumatic cylinder; 505. first friction plate; 506. elastic air storage bag; 507. flaring pipe; 508, air pressure sensor; 509, auxiliary frame; 510, insulating plate; 511, first electromagnet; 512, empty slot; 513, sliding rod; 514, installation box; 515, second electromagnet; 516, second friction plate; 517, inner plate; 518, installation slot; 6, driving structure; 601, human-computer interaction device; 602, cable; 603, reciprocating screw rod; 604, mounting ear plate; 605, guide box; 606, motion box; 607, laser ranging instrument; 608, driving motor; 609, gravity block; 610, guide ring; 611, limit block; 7, display screen. DETAILED DESCRIPTION

[0032] The embodiment of the present invention provides a laser measuring device for an LCD display screen and display screen manufacturing equipment.

[0033] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 and Fig.11, including a conveying device 1, a labeling device 3 and a display screen 7. Two positioning structures 5 are arranged on the top of the conveying device 1, two guiding structures 4 are arranged on the top of one of the positioning structures 5, and a driving structure 6 is installed on the outside of the conveying device 1.

[0034] Specifically, a labeling device 3 is fixedly installed on one side of the top of the conveying device 1 supported by multiple support frames 2. After the display screen 7 is placed on the top of the conveying device 1, it is transported by the conveying device 1 to move inside the labeling device 3, and the labeling device 3 labels the outer surface of the display screen 7.

[0035] When the conveying device 1 transports the display screen 7 to the labeling device 3, the two front display screens 7 move between the two positioning structures 5 installed on the top of the conveying device 1. Figure 2 As shown, at this time, the human-machine interaction device 601 fixedly installed on the outside of the conveying device 1 controls the two electrically connected positioning structures 5 to work. At this time, the first telescopic pneumatic cylinder 502 in the positioning structure 5 works, and the first telescopic pneumatic cylinder 502 pushes the moving plate 501 fixedly connected at the extension end to move, so that the moving plate 501 moves toward the display screen 7. Finally, the two moving plates 501 have a first friction plate 505 fixedly connected thereto and contact with the frontmost display screen 7 to clamp the display screen 7 and fix it. At this time, the first electromagnet 511 set on one side of the moving plate 501 is in a working state and is adsorbed and fixed together with the moving plate 501, and the insulating plates 510 fixedly connected on both sides of the first electromagnet 511 are fixedly connected together with the auxiliary frame 509. Therefore, when the moving plate 501 moves to clamp the display screen 7, the moving plate 501 will drive the auxiliary frame 509 to move through the first electromagnet 511 and the insulating plate 510, and the inner plate 517 set inside the auxiliary frame 509 moves synchronously, and the second friction plate 516 that runs through the auxiliary frame 509 is set on the side of the inner plate 517 close to the display screen 7, so the two second friction plates 516 clamp the rear display screen 7 to limit it.

[0036] An elastic air storage bag 506 is arranged inside the first friction plate 505. At this time, the elastic air storage bag 506 is in contact with the seam of the outer shell of the display screen 7. Under normal circumstances, the elastic air storage bag 506 is squeezed and shrunk into the installation groove 518 opened in the moving plate 501, and the gas inside the shrunk elastic air storage bag 506 enters the inside of the expanded tube 507 fixedly connected at one end. The air pressure value detected by the air pressure sensor 508 fixedly installed inside the expanded tube 507 fixedly connected to the moving plate 501 increases to a preset value.

[0037] When the air pressure value detected by the air pressure sensor 508 is lower than the preset value after the two first friction plates 505 clamp and fix the display screen 7:

[0038] At this time, it indicates that there is a large gap at the seam of the display screen 7 shell, the elastic air storage bag 506 has not been completely contracted, the display screen 7 has problems with unqualified processing or the shell is separated after being stressed. At this time, the human-computer interaction device 601 electrically connected to the air pressure sensor 508 is working, and the working human-computer interaction device 601 controls the electrically connected second electromagnet 515, the first electromagnet 511, the second telescopic pneumatic cylinder 504 and the drive structure 6.

[0039] At this time, the second electromagnet 515 fixedly installed at one end of the installation box 514 fixedly connected to the side wall of the conveying equipment 1 is working. Since the second electromagnet 515 and the installation box 514 are both mounted on the outside of the sliding rod 513, the sliding rod 513 and the installation box 514 cooperate to limit the inner plate 517, so that the inner plate 517 cannot move up and down. At the same time, the working second electromagnet 515 is adsorbed and fixed to the outside of the sliding rod 513. At this time, the left and right movement of the sliding rod 513 is limited, so that the inner plate 517 fixedly connected to the sliding rod 513 stays in place, and the display screen 7 clamped by the two inner plates 517 through the second friction plate 516 is still clamped and limited.

[0040] Subsequently, the second telescopic pneumatic cylinder 504 fixedly installed on the conveying equipment 1 starts to work, and the connecting cross plate 503 fixedly connected to the top of the second telescopic pneumatic cylinder 504 is fixedly connected to the outer wall of the first telescopic pneumatic cylinder 502, so the second telescopic pneumatic cylinder 504 works to push the first telescopic pneumatic cylinder 502 to move upward through the connecting cross plate 503, and the moving plate 501 fixedly connected at one end of the first telescopic pneumatic cylinder 502 is driven to move upward. At this time, the display screen 7 clamped between the two moving plates 501 is driven to move upward. When the connection gap of the display screen 7 shell is located on the laser emission movement track of the laser distance meter 607, the second telescopic pneumatic cylinder 504 stops working, and the driving structure 6 drives the laser distance meter 607 to move from the top rear side of the conveying device 1 to the top front side of the conveying device 1. During this process, the laser distance meter 607 works to collect distance data. Since the size of the display screen 7 is fixed, the human-computer interaction device 601 can judge the distance data of the gap at the connection of the shell of the display screen 7 according to the change of distance data collected by the laser distance meter 607, so as to facilitate the staff to understand and judge the specific problems of the display screen 7.

[0041] Then the driving structure 6 controls the laser distance meter 607 to reset, the second telescopic pneumatic cylinder 504 continues to work, the display screen 7 clamped between the two moving plates 501 continues to move upward, and the upwardly moving display screen 7 will push the two second inclined plates 403 in the two guide structures 4, and a connecting pipe 407 is provided between the first inclined plate 401 and the second inclined plate 403 fixedly connected by the conveying device 1, and one side of the connecting pipe 407 is fixedly connected to the second inclined plate 403, and the force applied by the display screen 7 to the second inclined plate 403 acts on the connecting pipe 407. Since the outer side of the fixed round rod 406 fixedly connected inside the connecting pipe 407 is rotatably sleeved with the mounting seat 405, under the support of the mounting seat 405 fixedly connected to the first inclined plate 401, the second inclined plate 403 drives the connecting pipe 407 and the fixed round rod 406 to rotate, and the second inclined plate 403 will not affect the upward movement of the display screen 7.

[0042] Since the mounting rod 408 of the first inclined plate 401 is rotatably mounted with a torsion spring 409, and one end of the torsion spring 409 is fixedly connected to the fixed rod 406, the fixed rod 406 rotates to expand a portion of the torsion spring 409 surrounding the outside of the mounting rod 408. However, after the display screen 7 moves upward and breaks away from the second inclined plate 403, the rebounded and wound torsion spring 409 drives the fixed rod 406 to rotate in the opposite direction, so that the fixed rod 406 drives the connecting pipe 407 and the second inclined plate 403 to reset. At this time, the second inclined plate 403, the connecting pipe 407 and the first inclined plate 401 form an inclined discharge plate.

[0043] Finally, the second telescopic pneumatic cylinder 504 extends to its limit and then contracts. After the display screen 7 clamped between the two moving plates 501 moves downward to the top of the discharge plates in the two guide structures 4, the first telescopic pneumatic cylinder 502 in the positioning structure 5 close to the guide structure 4 on the front side contracts, so that the clamping and fixation on one side of the display screen 7 are removed, and one end of the display screen 7 falls on the top of the two inclined discharge plates. The second telescopic pneumatic cylinder 504 contracts and drives the moving plate 501 to pass through between the two guide structures 4 and then move downward to the position where it starts to move upward. After the moving plate 501 passes between the two guide structures 4, the first telescopic pneumatic cylinder 502 extends to reset the moving plate 501 to the side of the auxiliary frame 509. Finally, the moving plate 501 returns to the side of the auxiliary frame 509 and contacts the first electromagnet 511.

[0044] At the same time, the first telescopic pneumatic cylinder 502 in the positioning structure 5 far away from the guide structure 4 at the rear side extends, pushing the display screen 7 to move toward the top of the two discharge plates, and completely pushing the display screen 7 to the top of the two guide structures 4, so that the display screen 7 with problems in the gap at the connection of the shell is guided by the two guide structures 4 to leave the top of the conveying device 1. Finally, the first telescopic pneumatic cylinder 502 and the second telescopic pneumatic cylinder 504 in the positioning structure 5 far away from the guide structure 4 at the rear side shrink in sequence, and the moving plate 501 returns to the side of the auxiliary frame 509 and contacts the first electromagnet 511. While the positioning structure 5 and the driving structure 6 cooperate to collect the problem data of the display screen 7, the positioning structure 5 cooperates with the guide structure 4 to directly discharge the unqualified display screen 7, which can ensure the quality of the processing of the display screen 7 and reduce the ineffective work performed by the labeling device 3.

[0045] When the air pressure value detected by the air pressure sensor 508 after the two elastic air storage bags 506 clamp and fix the display screen 7 is the same as the preset value:

[0046] At this time, the human-machine interaction device 601 controls the two positioning structures 5 to work, and the first electromagnet 511 is always in working state. At this time, the second telescopic pneumatic cylinder 504 in the two positioning structures 5 works to drive the display screen 7 clamped and fixed by the two first friction plates 505 to move upward. When the display screen 7 moves to the first detection position, the second telescopic pneumatic cylinder 504 stops working. At this time, the upper surface of the display screen 7 is located on the movement trajectory of the laser distance meter 607. The driving structure 6 is controlled to work to drive the laser distance meter 607 to move toward the front of the conveying device 1. The laser distance meter 607 scans and measures the upper surface of the display screen 7, and transmits the data to the inside of the human-machine interaction device 601, so as to accurately measure and calculate the flatness of the upper surface of the display screen 7.

[0047] When the laser distance meter 607 moves to the front of the conveying device 1, the driving structure 6 stops working, and the human-computer interaction device 601 controls the second telescopic pneumatic cylinder 504 to continue working, pushing the display screen 7 clamped and fixed by the two first friction plates 505 to continue to move upward. When the display screen 7 moves to the second detection position, the second telescopic pneumatic cylinder 504 stops working. At this time, the lower surface of the display screen 7 is located on the movement trajectory of the laser distance meter 607, and the driving structure 6 controls the laser distance meter 607 to reset. During this process, the laser distance meter 607 scans and measures the lower surface of the display screen 7, and transmits the data to the inside of the human-computer interaction device 601, so as to accurately measure and calculate the flatness of the lower surface of the display screen 7.

[0048] The flatness of the upper and lower surfaces of the display screen 7 can be measured at one time. When the flatness of the display screen 7 does not meet the processing requirements, the human-computer interaction device 601 controls the positioning structure 5 to work in cooperation with the guiding structure 4 to discharge the display screen 7 from the top of the conveying device 1, and controls the second electromagnet 515 to ensure that the inner plate 517 and the second friction plate 516 are maintained in a state of limiting and blocking the display screen 7 that has not been measured; before the labeling process of the labeling device 3, which is relatively late in the processing of the display screen 7, the laser measurement of the flatness of the upper and lower surfaces of the display screen 7 and the connection gap of the outer shell is automatically performed, so as to reduce the human visual judgment of the flatness and eliminate human errors, which can not only reduce measurement errors, but also reduce ineffective processing of the display screen 7 and reduce the processing cost of the display screen 7.

[0049] If there is no problem with the flatness of the upper and lower surfaces of the display screen 7, the human-computer interaction device 601 controls the second telescopic pneumatic cylinder 504 to contract and drive the moving plate 501 to move downward to the top of the conveying device 1, and then the human-computer interaction device 601 controls the first telescopic pneumatic cylinder 502 to contract and drive the moving plate 501 to reset. At this time, the display screen 7 that has been detected to have no problem loses its limit and is transported by the conveying device 1 to move inside the labeling device 3.

[0050] And during the process of detecting the flatness of the upper and lower surfaces of the display screen 7, the first electromagnet 511 is always in a working state, so at this time the auxiliary frame 509 is always moving synchronously with the moving plate 501, but the auxiliary frame 509 has not completely left the outside of the inner plate 517 during this process, so the up and down movement of the auxiliary frame 509 will not affect the position of the inner plate 517 that is limited by the sliding rod 513 and cannot move up and down. Therefore, when the second electromagnet 515 is not working, the second friction plate 516 fixed to the inner plate 517 still plays a role in clamping and limiting the display screen 7 between the two auxiliary frames 509.

[0051] When the display screen 7 without any problem loses its limit and is transported by the conveying device 1 to move inside the labeling device 3, the display screen 7 clamped between the two auxiliary frames 509 also loses its clamping limit and moves between the two moving plates 501. After a period of time, the following situation will occur again. Figure 2 As shown, one display screen 7 is between the two moving plates 501, and the other display screen 7 moves between the two moving plates 501. At this time, the human-machine interaction device 601 works again to control the two positioning structures 5 and the driving structure 6 to work, and the laser rangefinder 607 works to measure the surface flatness of the display screen 7. During the measurement of the display screen 7, with the cooperation of the first electromagnet 511, the auxiliary frame 509, the inner plate 517, the second friction plate 516 and other structures in the two positioning structures 5, the display screen 7 that has not been inspected is limited and cannot move to the labeling device 3, and the conveying device 1 can work without stopping, reducing the time waste caused by the unqualified display screens 7 with a small proportion, and reducing cost investment.

[0052] Furthermore, the two moving plates 501 move toward each other at a uniform speed when clamping the display screen 7 , so as to calibrate the position of the display screen 7 and the labeling device 3 , thereby ensuring the quality of labeling of the display screen 7 by the labeling device 3 .

[0053] In addition, such as Figure 2 , Fig.10 and Fig.11 As shown, the specific working principle of the driving structure 6 is as follows:

[0054] When the human-machine interaction device 601 in the driving structure 6 controls the rest of the driving structure 6 to work, the laser distance meter 607 electrically connected to the human-machine interaction device 601 works to emit laser for distance measurement, and the moving box 606 fixedly mounted on the outside of the laser distance meter 607 is equipped with a reciprocating screw 603 through a nut pair, and the two mounting ear plates 604 rotatably mounted on both ends of the outside of the reciprocating screw 603 are both fixed to the conveying device 1, so the reciprocating screw 603 is rotatably mounted on the top of the conveying device 1. When the driving motor 608 fixedly connected to the top of the conveying device 1 through a pad is working, the driving motor 608 fixedly connected to one end of the reciprocating screw 603 drives the reciprocating screw 603 to rotate, applies a rotational force to the moving box 606, and the guide box 605 fixedly connected between the two mounting ear plates 604 penetrates the moving box 606, so the moving box 606 is limited by the guide box 605 and can only perform horizontal reciprocating motion on the outside of the reciprocating screw 603. When the moving box 606 drives the laser distance meter 607 to move to the front side of the top of the conveying device 1, the human-computer interaction device 601 controls the driving motor 608 to stop working, providing time for the lower surface of the display screen 7 to move up and align with the laser distance meter 607.

[0055] A guide ring 610 is fixedly installed inside the guide box 605, and a cable 602 is fixedly installed between the human-machine interaction device 601 and the laser distance meter 607 for data transmission, and the cable 602 passes through the guide ring 610. Under the limit of the guide ring 610, when the laser distance meter 607 moves and drives the cable 602, the cable 602 can only move inside the guide box 605. When the laser distance meter 607 is reset, because the limit block 611 fixedly sleeved on the outside of the cable 602 is set inside the guide box 605, and the gravity block 609 is set on the outside of the cable 602 near the human-machine interaction device 601; under the weight of the gravity block 609, the cable 602 is pulled out of the guide box 605, and the limit block 611 limits and blocks the cable 602 to prevent the force of the gravity block 609 from acting on the laser distance meter 607. By setting the guide box 605 and the gravity block 609, the needs of the cable 602 and the laser distance meter 607 for working and moving can be met, and the cable 602 can be prevented from bending and winding itself and affecting the movement of the laser distance meter 607, or from entering the inside of the conveying device 1 and affecting the movement of the display screen 7, thereby ensuring the stability of the operation of the laser distance meter 607.

[0056] In addition, such as Fig. 9 As shown, a slot 512 is provided on the side of the auxiliary frame 509 away from the second friction plate 516, and one end of the sliding rod 513 is arranged inside the slot 512. When the auxiliary frame 509 moves up and down, the existence of the slot 512 prevents the sliding rod 513 from affecting the up and down movement of the auxiliary frame 509.

[0057] In addition, such as Figure 2 and Figure 3 As shown, a first limiting vertical plate 402 is fixedly connected to one side of the top of the first inclined plate 401, and a second limiting vertical plate 404 is fixedly connected to the top of the second inclined plate 403. The first limiting vertical plate 402 and the second limiting vertical plate 404 cooperate with the limiting display screen 7 to prevent the display screen 7 from being separated from the guidance of the two guide structures 4. The second limiting vertical plate 404 is staggered with the first limiting vertical plate 402, which will not affect the rotation of the second inclined plate 403.

[0058] In addition, such as Figure 4 As shown, one end of the limiting inclined plate 410 fixedly connected to the bottom of the first inclined plate 401 extends to the bottom of the second inclined plate 403. The limiting inclined plate 410 limits the second inclined plate 403 so that the second inclined plate 403 maintains the same inclination angle as the first inclined plate 401, reducing the force on the torsion spring 409.

[0059] In addition, the conveying equipment 1 and the labeling equipment 3 in the present application are both well-known technologies, based on actual production needs. For example, the labeling equipment 3 can refer to the existing patent application number: 202222130190.1, which discloses a labeling device for display screen production.

Claims

1. A laser measuring device for an LCD display screen, comprising a conveying device (1), characterized in that: Two positioning structures (5) are arranged on the top of the conveying device (1), and a driving structure (6) is installed on the outside of the conveying device (1); The positioning structure (5) comprises a moving plate (501), a first friction plate (505) is fixedly mounted on one side of the moving plate (501), an elastic air storage bag (506) is arranged inside the first friction plate (505), an air pressure sensor (508) is arranged on one side of the elastic air storage bag (506), a first electromagnet (511) is arranged on one side of the moving plate (501), an auxiliary frame (509) is arranged on one side of the first electromagnet (511), an inner plate (517) is arranged inside the auxiliary frame (509), a second friction plate (516) and a sliding rod (513) are fixedly connected on both sides of the inner plate (517), and a second electromagnet (515) and an installation box (514) are sequentially sleeved on the outer side of the sliding rod (513) in a direction away from the auxiliary frame (509); The driving structure (6) comprises a human-machine interaction device (601) and a laser distance measuring instrument (607); a moving box (606) is fixedly sleeved on the outer side of the laser distance measuring instrument (607); a reciprocating screw rod (603) is mounted on the moving box (606) via a nut pair; mounting ear plates (604) are rotatably sleeved on both ends of the outer side of the reciprocating screw rod (603); the mounting ear plates (604) are fixedly connected to the conveying device (1); a driving motor (608) is fixedly connected to one end of the reciprocating screw rod (603); a pad is fixedly connected between the driving motor (608) and the conveying device (1); and a spacer is fixedly connected between the two mounting ear plates (604). A guide box (605) is fixedly connected between the human-machine interaction device (601) and the laser distance measuring instrument (607), the guide box (605) passes through the motion box (606), a guide ring (610) is fixedly installed inside the guide box (605), a cable (602) is fixedly installed between the human-machine interaction device (601) and the laser distance measuring instrument (607), the cable (602) passes through the guide ring (610), a limit block (611) and a gravity block (609) are fixedly sleeved on the outside of the cable (602), the limit block (611) is arranged inside the guide box (605), and the gravity block (609) is arranged on the outside of the cable (602) near the human-machine interaction device (601).

2. The laser measuring device for LCD display screen according to claim 1, characterized in that: The labeling device (3) is fixedly installed on one side of the top of the conveying device (1), the display screen (7) is arranged on the top of the conveying device (1) and is transported by the conveying device (1) to move inside the labeling device (3), and a plurality of support frames (2) are fixedly connected to the bottom of the conveying device (1).

3. The laser measuring device for LCD display screen according to claim 1, characterized in that: The positioning structure (5) further comprises a first telescopic pneumatic cylinder (502) and a second telescopic pneumatic cylinder (504), wherein the second telescopic pneumatic cylinder (504) is fixedly connected to the conveying device (1), a connecting transverse plate (503) is fixedly connected to the top of the second telescopic pneumatic cylinder (504), the connecting transverse plate (503) is fixedly connected to the outer wall of the first telescopic pneumatic cylinder (502), and an extending end of the first telescopic pneumatic cylinder (502) is fixedly connected to the moving plate (501).

4. The laser measuring device for LCD display screen according to claim 1, characterized in that: One end of the elastic air storage bag (506) is fixedly connected to a flared tube (507); the moving plate (501) is provided with a mounting groove (518); the flared tube (507) is arranged inside the mounting groove (518) and is fixedly connected to the moving plate (501); and the air pressure sensor (508) is fixedly connected inside the flared tube (507).

5. The laser measuring device for LCD display screen according to claim 1, characterized in that: Insulating plates (510) are fixedly connected to both sides of the first electromagnet (511), and the insulating plates (510) are fixedly connected to the auxiliary frame (509). The second friction plate (516) is arranged on a side of the inner plate (517) close to the display screen (7), and the second friction plate (516) passes through the auxiliary frame (509).

6. The laser measuring device for LCD display screen according to claim 1, characterized in that: The auxiliary frame (509) is provided with an empty slot (512) on one side away from the second friction plate (516); one end of the sliding rod (513) is arranged inside the empty slot (512); the installation box (514) is fixedly connected to the side wall of the conveying device (1); and the second electromagnet (515) is fixedly connected to one end of the installation box (514).

7. Display screen manufacturing equipment, applicable to a laser measuring device for LCD display screens as claimed in any one of claims 1 to 6, comprising a labeling device (3) and a display screen (7), characterized in that: Two guide structures (4) are arranged on the top of one of the positioning structures (5), and the guide structure (4) comprises a first inclined plate (401) and a second inclined plate (403) rotatably arranged on one side of the first inclined plate (401), and a torsion spring (409) is installed between the first inclined plate (401) and the second inclined plate (403).

8. The display screen manufacturing equipment according to claim 7, characterized in that: A first position-limiting vertical plate (402) is fixedly connected to one side of the top of the first inclined plate (401), a second position-limiting vertical plate (404) is fixedly connected to the top of the second inclined plate (403), the second position-limiting vertical plate (404) and the first position-limiting vertical plate (402) are staggered, a connecting pipe (407) is provided between the first inclined plate (401) and the second inclined plate (403), one side of the connecting pipe (407) is fixedly connected to the second inclined plate (403), and the bottom of the first inclined plate (401) is fixedly connected to the position-limiting inclined plate (410).

9. The display screen manufacturing equipment according to claim 8, characterized in that: A fixed round rod (406) is fixedly connected inside the connecting tube (407), a mounting seat (405) is rotatably sleeved outside the fixed round rod (406), the mounting seat (405) is fixedly connected to the first inclined plate (401), a mounting round rod (408) is rotatably mounted on the first inclined plate (401), a torsion spring (409) is fixedly connected between the fixed round rod (406) and the mounting round rod (408), and a portion of the torsion spring (409) surrounds the outside of the mounting round rod (408).

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