LED screen detection device and method

Abstract

The invention discloses an LED screen detection device and method, and belongs to the field of LED screen detection. An LED screen detection device comprises a transportation frame body, a mounting frame is fixedly connected to the transportation frame body, a conveying belt of the transportation frame body penetrates through the mounting frame, a detection box is arranged in the mounting frame, and a refrigeration and heating circulator is fixedly connected to the bottom of the mounting frame. The detection assembly is arranged in the detection box; according to the device, the detection disc reciprocates above the LED screen along with the detection plate, the surface of the LED screen is cleaned firstly, the detection effect is ensured, and the detection precision is improved; the LED screen wear resistance detection device has the advantages that the LED screen wear resistance detection device can detect the wear resistance of an LED screen, simulates the color and appearance conditions of the LED screen in repeated touch sliding, realizes multifunctional detection, and improves the detection efficiency by arranging a driving rack and a driven gear, so that the detection disc can drive a silica gel brush to move and rotate at the same time, and dust and impurities can be better removed. The LED screen wear resistance detection device can detect the wear resistance of the LED screen, and simulates the color and appearance conditions of the LED screen in repeated touch sliding.

Description

Technical Field

[0001] The present invention relates to the technical field of LED screen detection, and in particular to a LED screen detection device and method. Background Art

[0002] LED screen is a display technology that uses light-emitting diodes as pixel sources. This type of screen can be divided into several types, including small-pitch LED, car-mounted screens, indoor and outdoor displays, etc. After the LED screen is produced, in order to ensure that it can meet the needs of use, it is usually necessary to carry out a series of quality tests, such as picture quality and color, appearance quality, reliability and durability.

[0003] At present, when testing LED screens, it is necessary to perform multiple tests on the same screen separately, which has a relatively single functionality and low detection efficiency. In addition, during the process of moving the screen multiple times, dust and impurities may adhere to its surface, which will affect the accuracy of subsequent tests and reduce the detection effect. Therefore, an LED screen detection device and method are proposed. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the prior art that multiple tests need to be performed separately on the same screen, the functionality is relatively single, the detection efficiency is low, and the detection accuracy is insufficient, and an LED screen detection device and method are proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A LED screen detection device includes a transport frame, to which an installation frame is fixedly connected, a conveyor belt of the transport frame passes through the installation frame, an inspection box is provided in the installation frame, and a refrigeration and heating circulator is fixedly connected to the bottom of the installation frame, and also includes: a detection component, which is arranged in the inspection box and is used to perform quality inspection on the LED screen; and a vibration component, which is arranged in the installation frame and is used to simulate the environment when the LED screen is inspected.

[0007] In order to improve the detection efficiency, a hydraulic cylinder is fixedly connected to the top of the transport frame, the telescopic end of the hydraulic cylinder is fixedly connected to the top of the detection box, one end side wall of the detection box slides in contact with the inner wall of the installation frame, and a sealing plate is fixedly connected to the bottom of the installation frame, and the sealing plate and the detection box are adapted to each other.

[0008] In order to realize multifunctional detection, the detection component includes a detection plate, one side of the inner cavity of the detection box is rotatably connected to a reciprocating screw, the other side of the inner cavity is fixedly connected to a limiting guide rod, both sides of the top of the detection plate are fixedly connected to movable sleeves, one side of the movable sleeve is threadedly sleeved on the reciprocating screw, and the other side of the movable sleeve is slidably sleeved on the limiting guide rod, a detection motor is fixedly connected to the outer wall of the detection box, the output shaft end of the detection motor is fixedly connected to the end of the reciprocating screw, and a detection probe is fixedly connected to the bottom center of the detection plate.

[0009] Furthermore, multiple groups of detection discs are evenly spaced on both sides of the bottom of the detection plate, a silicone brush is fixedly connected to the bottom of the detection disc, a rotating shaft of the detection disc passes through the top of the detection plate and is fixedly connected to a driven gear, and multiple groups of drive racks are evenly spaced in the inner cavity of the detection box, and the drive rack passes through the middle of the two groups of driven gears and is meshed with them.

[0010] In order to improve the detection efficiency, preferably, a piston groove is opened in the detection box, the reciprocating screw rod passes through the piston groove and is fixedly connected to a magnetic plate, a piston plate is slidably connected in the piston groove, the piston plate and the magnetic plate magnetically repel each other, and a return spring is fixedly connected between the bottom of the magnetic plate and the piston groove, an exhaust pipe is fixedly connected to the bottom of the detection box, the exhaust pipe is connected to the inner cavity of the piston groove, an exhaust groove is opened in the detection box, the input end of the exhaust groove is connected to the inner cavity of the piston groove, the output end of the exhaust groove is connected to the upper cavity of the detection box, and a one-way valve is provided in the exhaust pipe and the exhaust groove.

[0011] In order to improve the detection accuracy, a blowing groove is opened in the detection plate, and blowing holes are opened on both sides of the inner cavity of the blowing groove. The output ends of the blowing holes face between the two groups of detection plates. Both sides of the top of the blowing groove are fixed and connected with air ducts, and the other end of the air duct is connected to the inner cavity of the exhaust groove.

[0012] In order to facilitate the simulation of the detection environment and thereby improve the representativeness of the detection results, preferably, the vibration assembly includes a knocking rod, which is rotatably connected to the bottom of the mounting frame, a vibration spring is fixedly connected between the bottom of the knocking rod and the mounting frame, a linkage shaft is rotatably connected to the upper inner wall of the detection box, the end of the linkage shaft and the reciprocating screw are connected via a bevel gear set, a lifting shaft is rotatably connected to the lower inner wall of the detection box, the lifting shaft and the linkage shaft are connected via a pulley set, a lifting wheel is rotatably connected to the lifting shaft, the lifting wheel is aligned up and down with the knocking rod, and a lifting bump is fixedly connected to the lifting wheel.

[0013] Furthermore, a semicircular groove is provided at the bottom of the mounting frame, the semicircular groove is aligned with the lifting wheel up and down, the distance from the center of the lifting wheel to the center of the semicircular groove is equal to the distance from the bottom end of the detection box to the bottom of the inner cavity of the mounting frame, and the distance from the end of the protrusion to the center of the lifting wheel is less than the radius of the semicircular groove.

[0014] Preferably, a shielding plate is fixedly connected to the transport frame, and the shielding plate is in contact with a side wall of the conveyor belt of the transport frame.

[0015] A method for detecting an LED screen, the steps are as follows:

[0016] Step 1: Move the LED screen under the test box and connect it to the power supply;

[0017] Step 2: Adjust different temperature environments to conduct quality inspection on the LED screen;

[0018] Step 3: Simulate the specific usage scenario of the LED screen during the detection process.

[0019] Compared with the prior art, the present invention provides a LED screen detection device and method, which has the following beneficial effects:

[0020] 1. The LED screen detection device, through the detection disk following the detection plate to move back and forth above the LED screen, first cleans the surface of the LED screen, ensuring the detection effect and improving the detection accuracy; and by utilizing the setting of the driving rack and the driven gear, the detection disk will drive the silicone brush to move and rotate on the surface of the LED screen, so as to better remove dust and impurities, and can also perform wear resistance detection on the LED screen, simulating the color and appearance of the LED screen during repeated touch and sliding, realizing multi-functional detection and improving detection efficiency.

[0021] 2. The LED screen detection device, through the repulsive action of the piston plate and the magnetic plate, cooperates with the setting of the reset spring, can quickly transfer the airflow at the bottom of the sealed chamber to the upper part, thereby realizing rapid and uniform temperature exchange, improving the efficiency of temperature conversion, and ensuring the accuracy of the detection results; and allowing a part of the gas to blow on the cleaning surface along the blowing groove, firstly, it can improve the cleaning effect, and secondly, it can reduce friction heat, avoiding thermal wear on the surface of the LED screen and causing inaccurate detection results.

[0022] 3. The LED screen detection device, through the cooperation between the lifting wheel, the bump, the knocking rod and the vibration spring, will vibrate the LED screen during the detection process, so as to simulate the color display of the LED screen in a shaking state, thereby realizing more functional detection and further improving the detection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The overall structure of the LED screen detection device proposed by the present invention is shown in FIG. Figure 1 ;

[0024] Figure 2 The overall structure of the LED screen detection device proposed by the present invention is shown in FIG. Figure 2 ;

[0025] Figure 3 A schematic diagram of the internal structure of a detection box of an LED screen detection device proposed by the present invention;

[0026] Figure 4 A schematic diagram of a half-section structure of a detection box of an LED screen detection device proposed by the present invention;

[0027] Figure 5 A LED screen detection device proposed by the present invention Figure 4 A schematic diagram of the enlarged structure of the middle A area;

[0028] Figure 6 A LED screen detection device proposed by the present invention Figure 4 Schematic diagram of the enlarged structure of the middle B area;

[0029] Figure 7 A schematic diagram of a half-section structure of a piston groove of an LED screen detection device proposed by the present invention;

[0030] Figure 8 A LED screen detection device proposed by the present invention Figure 7 Schematic diagram of the enlarged structure of the middle C area;

[0031] Fig. 9 This is a schematic diagram of the partial cross-sectional structure of an LED screen detection device proposed by the present invention.

[0032] In the figure: 1. transport frame; 2. installation frame; 21. refrigeration and heating circulator; 22. sealing plate; 3. detection box; 31. hydraulic cylinder; 4. detection plate; 41. reciprocating screw; 42. limit guide rod; 43. movable sleeve; 44. detection motor; 45. detection probe; 46. detection plate; 461. silicone brush; 462. driven gear; 47. driving rack; 48. piston groove; 481. magnetic plate; 482. piston plate; 483. reset spring; 484. exhaust pipe; 485. exhaust groove; 49. blowing groove; 491. blowing hole; 492. air guide pipe; 5. knock rod; 51. vibration spring; 52. linkage shaft; 521. bevel gear set; 522. pulley set; 53. lifting shaft; 54. lifting wheel; 541. bump; 55. semicircular groove; 6. shielding plate. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the 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.

[0035] Embodiment 1:

[0036] Reference Figure 1-Figure 9 A LED screen detection device includes a transport frame 1, a mounting frame 2 is fixedly connected to the transport frame 1, a conveyor belt of the transport frame 1 passes through the mounting frame 2, a detection box 3 is arranged in the mounting frame 2, and a refrigeration and heating circulator 21 is fixedly connected to the bottom of the mounting frame 2, a baffle plate 6 is fixedly connected to the transport frame 1, and the baffle plate 6 is in contact with the side wall of the conveyor belt of the transport frame 1, and also includes: a detection component, the detection component is arranged in the detection box 3, and the detection component is used to perform quality detection on the LED screen; a vibration component, the vibration component is arranged in the mounting frame 2, and the vibration component is used to simulate the environment during LED screen detection.

[0037] It should be noted that the refrigeration and heating circulator 21 is an existing mature technology, and the specific model is MD40, which is used to change the temperature inside the sealed detection box 3, so as to simulate the color and appearance quality of the LED screen under different environments, thereby improving the detection effect.

[0038] Reference Figure 1-Figure 4 Among them, a hydraulic cylinder 31 is fixedly connected to the top of the transport frame 1, the telescopic end of the hydraulic cylinder 31 is fixedly connected to the top of the detection box 3, one end side wall of the detection box 3 slides in contact with the inner wall of the installation frame 2, and a sealing plate 22 is fixedly connected to the bottom of the installation frame 2, and the sealing plate 22 and the detection box 3 are adapted to each other.

[0039] Through the arrangement of the above-mentioned structure, the hydraulic cylinder 31 is turned on to drive the detection box 3 to move downward, and finally the bottom of the detection box 3 is tightly fitted with the top of the sealing plate 22, thereby forming a sealed detection space and ensuring the detection effect; and in the process of detection, the refrigeration and heating circulator 21 is simultaneously turned on to change the temperature in the sealed detection box 3 in the order of normal temperature-high temperature-normal temperature-low temperature, so as to simulate the color and appearance quality of the LED screen under different environments, thereby improving the detection effect.

[0040] Reference Figure 3-Figure 5 and Figure 7 , wherein the detection assembly includes a detection plate 4, one side of the inner cavity of the detection box 3 is rotatably connected to a reciprocating screw rod 41, and the other side of the inner cavity is fixedly connected to a limit guide rod 42, and both sides of the top of the detection plate 4 are fixedly connected to movable sleeves 43, one side of the movable sleeve 43 is threadedly sleeved on the reciprocating screw rod 41, and the other side of the movable sleeve 43 is slidably sleeved on the limit guide rod 42, and a detection motor 44 is fixedly connected to the outer wall of the detection box 3, and the output shaft end of the detection motor 44 is fixedly connected to the end of the reciprocating screw rod 41, and the bottom center of the detection plate 4 is fixed. A detection probe 45 is connected, and the detection probe 45 adopts the existing mature foundation and is used for visual detection of the picture quality, color and appearance of the LED screen; a plurality of detection disks 46 are evenly spaced on both sides of the bottom of the detection board 4, and a silicone brush 461 is fixedly connected to the bottom of the detection disk 46. The rotating shaft of the detection disk 46 passes through the top of the detection board 4 and is fixedly connected to a driven gear 462. A plurality of drive racks 47 are evenly spaced in the inner cavity of the detection box 3, and the drive racks 47 pass through the middle of the two sets of driven gears 462 and are meshed with them.

[0041] Through the arrangement of the above structure, the detection motor 44 is turned on to drive the reciprocating screw 41 to rotate. At this time, the moving sleeves 43 on both sides will slide along the reciprocating screw 41 and the limiting guide rod 42 at the same time, so that the detection plate 4 moves along the surface of the LED screen. At this time, the detection probe 45 is used to detect the color and appearance of the LED screen; at the same time, the silicone brush 461 at the bottom of the detection plate 46 will be attached to the surface of the LED screen. In the process of the movement of the detection plate 4, the surface of the LED screen will be cleaned, so as to remove the dust and impurities attached to the surface of the LED screen, thereby ensuring the detection effect and improving the detection accuracy; and when the detection plate 4 moves, the meshing relationship between the driving rack 47 and the driven gear 462 will be used to make multiple groups of detection plates 46 rotate at the same time. At this time, the silicone brush 461 will move and rotate on the surface of the LED screen, which can firstly remove dust and impurities better, and secondly, can perform wear resistance detection on the LED screen, simulating the color and appearance of the LED screen during repeated touch sliding, realizing multi-functional detection and improving detection efficiency.

[0042] Reference Figure 4 , Figure 7 and Figure 8, wherein a piston groove 48 is provided in the detection box 3, a reciprocating screw rod 41 penetrates into the piston groove 48 and is fixedly connected with a magnetic plate 481, a piston plate 482 is slidably connected in the piston groove 48, the piston plate 482 and the magnetic plate 481 are magnetically repelled, and a return spring 483 is fixedly connected between the bottom of the magnetic plate 481 and the piston groove 48, an exhaust pipe 484 is fixedly connected to the bottom of the detection box 3, the exhaust pipe 484 is connected with the inner cavity of the piston groove 48, an exhaust groove 485 is provided in the detection box 3, the input end of the exhaust groove 485 is connected with the inner cavity of the piston groove 48, the output end of the exhaust groove 485 is connected with the upper cavity of the detection box 3, and a one-way valve is provided in both the exhaust pipe 484 and the exhaust groove 485;

[0043] It should be noted that the one-way valve in the exhaust pipe 484 can only allow the gas in the lower part of the detection box 3 to enter the piston groove 48; the one-way valve in the exhaust groove 485 can only allow the gas in the piston groove 48 to enter the upper part of the detection box 3.

[0044] Through the arrangement of the above structure, when the reciprocating screw rod 41 rotates, the magnetic plate 481 in the piston groove 48 will be driven to rotate. Under the repulsive action of the piston plate 482 and the magnetic plate 481, the piston plate 482 will slide in the direction of the compression return spring 483, thereby squeezing the gas in the piston groove 48, thereby opening the one-way valve in the exhaust groove 485, so that this part of the gas is discharged along the exhaust groove 485. When the piston plate 482 and the magnetic plate 481 are separated from the repulsive area, under the rebound action of the return spring 483, the piston plate 482 will be reset. At this time, suction will be generated in the piston groove 48, thereby opening the one-way valve in the exhaust pipe 484, so that the airflow in the sealed area of ​​the mounting frame 2 is sucked into the piston groove 48 along the exhaust pipe 484. This reciprocating process will enable the bottom airflow to be quickly transferred to the upper part, thereby realizing rapid and uniform temperature exchange, improving the efficiency of temperature conversion, and ensuring the accuracy of the detection results.

[0045] Reference Figure 5 , Figure 7 A blowing slot 49 is provided in the detection plate 4, and blowing holes 491 are provided on both sides of the inner cavity of the blowing slot 49. The output ends of the blowing holes 491 face between the two groups of detection disks 46. Both sides of the top of the blowing slot 49 are fixed and connected with air guide tubes 492, and the other end of the air guide tubes 492 is connected to the inner cavity of the exhaust slot 485.

[0046] Through the setting of the above-mentioned structure, a part of the gas exhausted from the exhaust groove 485 will enter the blowing groove 49 along the air guide pipe 492. In this way, during the rotation and cleaning process of the silicone brush 461, air will be blown on the cleaning surface. Firstly, it can improve the cleaning effect, and secondly, it can reduce friction heat and avoid thermal wear on the surface of the LED screen, which will lead to inaccurate detection results.

[0047] Reference Figure 4 , Figure 6 and Figure 7 , wherein the vibration assembly includes a knocking rod 5, the knocking rod 5 is rotatably connected to the bottom of the installation frame 2, a vibration spring 51 is fixedly connected between the bottom of the knocking rod 5 and the installation frame 2, a linkage shaft 52 is rotatably connected to the upper part of the inner wall of the detection box 3, and the end of the linkage shaft 52 is connected to the reciprocating screw rod 41 through a bevel gear set 521, and a lifting shaft 53 is rotatably connected to the lower part of the inner wall of the detection box 3, and the lifting shaft 53 and the linkage shaft 52 are connected through a pulley set 522. A lifting wheel 54 is rotatably connected to the lifting shaft 53, the lifting wheel 54 is aligned with the knocking rod 5 up and down, and a lifting protrusion 541 is fixedly connected to the lifting wheel 54; a semicircular groove 55 is provided at the bottom of the mounting frame 2, the semicircular groove 55 is aligned with the lifting wheel 54 up and down, the distance from the center of the lifting wheel 54 to the center of the semicircular groove 55 is equal to the distance from the bottom end of the detection box 3 to the bottom of the inner cavity of the mounting frame 2, and the distance from the end of the protrusion 541 to the center of the lifting wheel 54 is less than the radius of the semicircular groove 55.

[0048] Through the arrangement of the above structure, when the detection box 3 is fitted with the sealing plate 22, the lifting wheel 54 will move into the semicircular groove 55, and when the reciprocating screw 41 rotates, the transmission action of the bevel gear set 521 will drive the linkage shaft 52 to rotate, and the linkage shaft 52 cooperates with the transmission action of the pulley set 522 to drive the lifting shaft 53 to rotate, so that multiple sets of lifting wheels 54 will rotate at the same time, and when the protrusion 541 rotates upward from the bottom of the knocking rod 5, it will drive the end of the knocking rod 5 to lift upward, and at this time the other end of the knocking rod 5 will rotate downward and compress the vibration spring 51, and when the protrusion 541 passes over the knocking rod 5, under the rebound action of the vibration spring 51, the end of the knocking rod 5 will hit the conveyor belt of the transport frame 1, which will produce a vibration effect on the LED screen, thereby simulating the color display of the LED screen in a shaking state, thereby realizing more functional detection and further improving the detection effect.

[0049] Embodiment 2:

[0050] Reference Figure 1-Figure 9 , which is basically the same as the first embodiment, on the basis of the first embodiment, a LED screen detection method is proposed, and the steps are as follows:

[0051] Step 1: Move the LED screen to the bottom of the detection box 3 and turn on the power;

[0052] Step 2: Adjust different temperature environments to conduct quality inspection on the LED screen;

[0053] Step 3: Simulate the specific usage scenario of the LED screen during the detection process.

[0054] Reference Figure 1-Figure 9In the present invention, when in use, the LED screen is placed on the conveyor belt of the transport frame 1 and moved to the bottom of the detection box 3, and then the power is turned on. Then the hydraulic cylinder 31 is turned on to drive the detection box 3 to move downward, and finally the bottom of the detection box 3 is tightly fitted with the top of the sealing plate 22, so as to form a sealed detection space to ensure the detection effect; then the detection motor 44 is turned on to drive the reciprocating screw 41 to rotate. At this time, the moving sleeves 43 on both sides will slide along the reciprocating screw 41 and the limit guide rod 42 at the same time, so that the detection plate 4 moves along the surface of the LED screen. At this time, the detection probe 45 is used to detect the color and appearance of the LED screen; at the same time, the silicon at the bottom of the detection plate 46 The rubber brush 461 will be attached to the surface of the LED screen. During the movement of the detection board 4, the surface of the LED screen will be cleaned to remove dust and impurities attached to the surface of the LED screen, thereby ensuring the detection effect and improving the detection accuracy; and when the detection board 4 moves, the meshing relationship between the driving rack 47 and the driven gear 462 will cause multiple groups of detection disks 46 to rotate at the same time. At this time, the silicone brush 461 will move and rotate on the surface of the LED screen, which can firstly remove dust and impurities better, and secondly, can perform wear resistance detection on the LED screen, simulating the color and appearance of the LED screen during repeated touch and sliding, thereby realizing multi-functional detection and improving detection efficiency.

[0055] During the detection process, the refrigeration and heating circulator 21 is turned on simultaneously, and the temperature in the sealed detection box 3 is changed in the order of normal temperature-high temperature-normal temperature-low temperature, so as to simulate the color and appearance quality of the LED screen under different environments, thereby improving the detection effect; at the same time, when the reciprocating screw 41 rotates, it will drive the magnetic plate 481 in the piston groove 48 to rotate, and under the repulsive action of the piston plate 482 and the magnetic plate 481, the piston plate 482 slides in the direction of the compression return spring 483, thereby squeezing the gas in the piston groove 48, thereby opening the one-way valve in the exhaust groove 485, so that part of the gas is discharged along the exhaust groove 485, and part of it will enter the blowing groove 49 along the air guide pipe 492, so that the silicone brush 461 rotates and cleans During the process, air will be blown on the cleaning surface, which can firstly improve the cleaning effect, and secondly reduce friction heat to avoid thermal wear on the surface of the LED screen and cause inaccurate detection results; and when the piston plate 482 and the magnetic plate 481 are separated from the repulsive area, the piston plate 482 will be reset under the rebound action of the reset spring 483. At this time, suction will be generated in the piston groove 48 to open the one-way valve in the exhaust pipe 484, so that the airflow in the sealed area of ​​the installation frame 2 (that is, near the output end of the refrigeration and heating circulator 21) is sucked into the piston groove 48 along the exhaust pipe 484, and so on and so forth, which will make the bottom airflow quickly transferred to the upper part, thereby realizing rapid and uniform temperature exchange, improving the efficiency of temperature conversion, and ensuring the accuracy of the detection results.

[0056] And when the detection box 3 is fitted with the sealing plate 22, the lifting wheel 54 will move into the semicircular groove 55, and when the reciprocating screw 41 rotates, the transmission action of the bevel gear set 521 will drive the linkage shaft 52 to rotate, and the linkage shaft 52 cooperates with the transmission action of the pulley set 522 to drive the lifting shaft 53 to rotate, so that multiple sets of lifting wheels 54 will rotate at the same time, and when the protrusion 541 rotates upward from the bottom of the knocking rod 5, it will drive the end of the knocking rod 5 to lift upward, and at this time the other end of the knocking rod 5 will rotate downward and compress the vibration spring 51, when the protrusion 541 passes over the knocking rod 5, under the rebound action of the vibration spring 51, the end of the knocking rod 5 will hit the conveyor belt of the transport frame 1, which will produce a vibration effect on the LED screen, thereby simulating the color display of the LED screen in a shaking state, thereby realizing more functional detection and further improving the detection effect.

[0057] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A LED screen detection device, comprising a transport frame (1), characterized in that: The transport frame (1) is fixedly connected to a mounting frame (2), a conveyor belt of the transport frame (1) passes through the mounting frame (2), a detection box (3) is arranged in the mounting frame (2), and a refrigeration and heating circulator (21) is fixedly connected to the bottom of the mounting frame (2), and further comprises: A detection component, the detection component is arranged in the detection box (3), and the detection component is used to perform quality detection on the LED screen; A vibration component is arranged in the installation frame (2), and the vibration component is used to simulate the environment when the LED screen is detected.

2. The LED screen detection device according to claim 1, characterized in that: The top of the transport frame (1) is fixedly connected to a hydraulic cylinder (31), the telescopic end of the hydraulic cylinder (31) is fixedly connected to the top of the detection box (3), one end side wall of the detection box (3) is slidably fitted with the inner wall of the installation frame (2), and the bottom of the installation frame (2) is fixedly connected to a sealing plate (22), and the sealing plate (22) and the detection box (3) are adapted to each other.

3. The LED screen detection device according to claim 1, characterized in that: The detection assembly comprises a detection plate (4), one side of the inner cavity of the detection box (3) is rotatably connected to a reciprocating screw (41), the other side of the inner cavity is fixedly connected to a limiting guide rod (42), both sides of the top of the detection plate (4) are fixedly connected to movable sleeves (43), one side of the movable sleeve (43) is threadedly sleeved on the reciprocating screw (41), and the other side of the movable sleeve (43) is slidably sleeved on the limiting guide rod (42), the outer wall of the detection box (3) is fixedly connected to a detection motor (44), the output shaft end of the detection motor (44) is fixedly connected to the end of the reciprocating screw (41), and the bottom center of the detection plate (4) is fixedly connected to a detection probe (45).

4. The LED screen detection device according to claim 3, characterized in that: A plurality of detection discs (46) are evenly spaced on both sides of the bottom of the detection plate (4); a silicone brush (461) is fixedly connected to the bottom of the detection disc (46); a rotating shaft of the detection disc (46) passes through the top of the detection plate (4) and is fixedly connected to a driven gear (462); a plurality of drive racks (47) are evenly spaced in the inner cavity of the detection box (3); the drive racks (47) pass through the middle of two sets of driven gears (462) and are meshed with them.

5. The LED screen detection device according to claim 3, characterized in that: The detection box (3) is provided with a piston groove (48), the reciprocating screw rod (41) penetrates into the piston groove (48) and is fixedly connected with a magnetic plate (481), the piston groove (48) is slidably connected with a piston plate (482), the piston plate (482) and the magnetic plate (481) are magnetically repelled, and a return spring (483) is fixedly connected between the bottom of the magnetic plate (481) and the piston groove (48), the bottom of the detection box (3) is fixedly connected with an exhaust pipe (484), the exhaust pipe (484) is communicated with the inner cavity of the piston groove (48), the detection box (3) is provided with an exhaust groove (485), the input end of the exhaust groove (485) is communicated with the inner cavity of the piston groove (48), the output end of the exhaust groove (485) is communicated with the upper cavity of the detection box (3), and both the exhaust pipe (484) and the exhaust groove (485) are provided with a one-way valve.

6. The LED screen detection device according to claim 3, characterized in that: The detection plate (4) is provided with a blowing groove (49), and blowing holes (491) are provided on both sides of the inner cavity of the blowing groove (49), and the output ends of the blowing holes (491) face between the two groups of detection plates (46). Both sides of the top of the blowing groove (49) are fixed and connected with air guide pipes (492), and the other end of the air guide pipe (492) is connected to the inner cavity of the exhaust groove (485).

7. The LED screen detection device according to claim 3, characterized in that: The vibration assembly comprises a knocking rod (5), the knocking rod (5) is rotatably connected to the bottom of the installation frame (2), a vibration spring (51) is fixedly connected between the bottom of the knocking rod (5) and the installation frame (2), a linkage shaft (52) is rotatably connected to the upper part of the inner wall of the detection box (3), the end of the linkage shaft (52) is transmission-connected to the reciprocating screw rod (41) via a bevel gear set (521), a lifting shaft (53) is rotatably connected to the lower part of the inner wall of the detection box (3), the lifting shaft (53) and the linkage shaft (52) are transmission-connected via a pulley set (522), a lifting wheel (54) is rotatably connected to the lifting shaft (53), the lifting wheel (54) is aligned with the knocking rod (5) in the upper and lower parts, and a lifting protrusion (541) is fixedly connected to the lifting wheel (54).

8. The LED screen detection device according to claim 7, characterized in that: A semicircular groove (55) is provided at the bottom of the installation frame (2), and the semicircular groove (55) is aligned with the lifting wheel (54) in vertical direction. The distance from the center of the lifting wheel (54) to the center of the semicircular groove (55) is equal to the distance from the bottom end of the detection box (3) to the bottom of the inner cavity of the installation frame (2), and the distance from the end of the protrusion (541) to the center of the lifting wheel (54) is less than the radius of the semicircular groove (55).

9. The LED screen detection device according to claim 1, characterized in that: A shielding plate (6) is fixedly connected to the transport frame (1), and the shielding plate (6) is in contact with the side wall of the conveyor belt of the transport frame (1).

10. A method for detecting an LED screen, using an LED screen detection device as claimed in any one of claims 1 to 9, characterized in that: Here are the steps: Step 1: Move the LED screen to the bottom of the detection box (3) and connect it to the power supply; Step 2: Adjust different temperature environments to conduct quality inspection on the LED screen; Step 3: Simulate the specific usage scenario of the LED screen during the detection process.

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