Detection device for LED display screen module

Abstract

The invention relates to the technical field of LED display screen detection, and particularly discloses a detection device for an LED display screen module, and the detection device for the LED display screen module comprises a detection body, a conveying assembly, a controller and a plurality of groups of detection assemblies. Firstly, an LED display screen module is placed on a first conveying part, and then appearance parameter detection is conducted on the LED display screen module at the same time through a first detection part and a second detection part; if the detection is qualified, directly conveying to the next working procedure through the first conveying part; and if the LED display screen module is detected to be unqualified, the controller controls the switching part to switch the LED display screen module located on the first conveying part to the second conveying part, and then the unqualified LED display screen module is conveyed to a designated position through the second conveying part. By means of the arrangement, automatic detection can be achieved, detection leakage can be reduced, the warehousing qualified rate of products can be improved, quality can be improved, and the problems that manual detection is needed, detection item leakage occurs, and working efficiency is low are solved.

Description

Technical Field

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

[0002] At present, with the development of LED display technology, it has been more and more widely used in various occasions due to its low energy consumption, strong color reproduction, long life, huge size, unique shape and other characteristics. After the LED display screen is produced, it needs to be tested. However, in the existing technology, manual inspection is required when testing the LED display screen. Since there are many items to be tested, it is easy to miss the inspection items, resulting in an increase in the number of unqualified products entering the warehouse, affecting work efficiency. Summary of the invention

[0003] The purpose of the present invention is to provide a detection device for an LED display screen module to solve the problem that the LED display screen in the prior art requires manual detection, resulting in missing inspection items and low work efficiency.

[0004] In order to solve the above problems, the present invention provides a detection device for an LED display screen module, which includes: a detection body, wherein a mounting platform is provided in a cavity of the detection body; a conveying component, including a first conveying part, a second conveying part and a switching part, wherein the first conveying part and the second conveying part are arranged side by side on the mounting platform and have opposite conveying directions, wherein the first conveying part and the second conveying part can both convey the LED display screen module, and the switching part can switch the LED display screen module located on the first conveying part to the second conveying part; a plurality of detection components, wherein the plurality of detection components are all located on the mounting platform and are arranged at intervals along the conveying direction of the first conveying part, wherein the detection components include a first detection part and a second detection part, wherein the first detection part is located above the first conveying part and can perform appearance parameter detection on the LED display screen module, and the second detection part is located below the first conveying part and can perform appearance parameter detection on the LED display screen module; and a controller, wherein the switching part and the detection part are both electrically connected to the controller, and the controller controls the operation of the switching part by receiving detection signals of the first detection part and the second detection part.

[0005] As an optional technical solution for the detection device of the LED display screen module, the first detection part includes a support frame and a plurality of first detection cameras. The support frame is arranged on the installation platform and is located above the first conveying part. The plurality of first detection cameras are spaced apart on the support frame along the horizontal direction. The first detection camera can be arranged to be raised and lowered and can perform appearance parameter detection on the LED display screen module.

[0006] As an optional technical solution for the detection device of the LED display module, the first detection camera includes a first appearance detection camera and a first lifting structure, the first lifting structure is arranged on the supporting frame, the first appearance detection camera is arranged on the first lifting structure, and the first lifting structure can be set to be lifted to drive the first appearance detection camera to be lifted and lowered.

[0007] As an optional technical solution for the detection device of the LED display module, the first lifting structure includes a guide rail seat, a slide and an adjustment knob, the guide rail seat has a guide protrusion arranged in the vertical direction, the slide has a slide groove, the guide rail seat is arranged on the support frame, the guide protrusion and the slide groove are limited and matched, the adjustment knob passes through the slide groove and presses the guide protrusion, and the first appearance detection camera is arranged on the slide.

[0008] As an optional technical solution for the detection device of the LED display module, the second detection part includes a second appearance detection camera, a base plate, a horizontal adjustment structure and a second lifting structure. The base plate is arranged in the cavity of the detection body, the horizontal adjustment structure is arranged on the base plate, the second lifting structure is arranged on the horizontal adjustment structure, and the second appearance detection camera is arranged on the second lifting structure. The horizontal adjustment structure can drive the second lifting structure to move horizontally, and the second lifting structure can drive the second appearance detection camera to rise and fall.

[0009] As an optional technical solution for the detection device of the LED display screen module, the switching part includes a mounting frame, a first adjustment structure, a second adjustment structure and a clamping structure, the mounting frame is arranged on the mounting platform, the first adjustment structure is arranged on the mounting frame, the second adjustment structure is arranged on the first adjustment structure, and the clamping structure is arranged on the second adjustment structure. The first adjustment structure can drive the second adjustment structure to move in the horizontal direction, the second adjustment structure can drive the clamping structure to move in the vertical direction, and the clamping structure can switch the LED display screen module located on the first conveying part to the second conveying part.

[0010] As an optional technical solution for the detection device of the LED display module, the clamping structure includes a clamping plate, a first suction cup and a second suction cup, the clamping plate is connected to the second adjustment structure, the first suction cup and the second suction cup are arranged on the clamping plate at intervals, and the first suction cup and the second suction cup can both adsorb the LED display module.

[0011] As an optional technical solution for the detection device for LED display screen modules, the detection device for LED display screen modules also includes a first cleaning section, which includes a cleaning rack and a first cleaning piece. The cleaning rack is arranged on the mounting platform and is located above the first conveying section. The first cleaning piece is installed on the cleaning rack and can clean the LED display screen module entering the first conveying section.

[0012] As an optional technical solution for the detection device for the LED display module, the detection device for the LED display module also includes a dust cover and a second cleaning piece, the dust cover covers the second detection part, the second cleaning piece is arranged at the bottom of the installation platform and can clean the dust cover.

[0013] As an optional technical solution for the detection device of the LED display screen module, the first conveying part includes a conveying frame, a driving motor and a conveyor belt. The conveying frame is arranged on the mounting platform, and the conveyor belt is installed on the conveying frame. The driving motor and the conveying frame are drivingly connected to drive the conveyor belt to rotate, and the conveyor belt is used to carry the LED display screen module.

[0014] The beneficial effects of the present invention are:

[0015] The present invention provides a detection device for an LED display screen module, which includes a detection body, a conveying component, a controller and multiple detection components. The detection body has a mounting platform in its cavity; the conveying component includes a first conveying part, a second conveying part and a switching part; the detection component includes a first detection part and a second detection part. The detection device for an LED display screen module of the present invention is used to first place the LED display screen module on the first conveying part, and then the appearance parameters of the LED display screen module are detected by the first detection part and the second detection part at the same time. If the appearance parameter detection of the LED display screen module is qualified, it is directly conveyed to the next process through the first conveying part; if the appearance parameter detection of the LED display screen module is unqualified, the controller receives the detection signals of the first detection part and the second detection part, and then controls the switching part to switch the LED display screen module located on the first conveying part to the second conveying part, and then the unqualified LED display screen module is conveyed to the designated position through the second conveying part. Such a setting can realize automatic detection of the appearance parameters of the LED display module, reduce inspection omissions, increase the product warehousing qualification rate and improve quality, and effectively solve the problem that the LED display in the existing technology requires manual inspection, resulting in inspection item omissions and low work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1This is a schematic diagram of the structure of a detection device for an LED display screen module in an embodiment of the present invention;

[0017] Figure 2 This is a schematic diagram of a part of the structure of a detection device for an LED display screen module in an embodiment of the present invention;

[0018] Figure 3 for Figure 2 A partial enlarged view of the

[0019] Figure 4 This is a schematic diagram of the structure of a part of the detection device for the LED display screen module in an embodiment of the present invention at another angle;

[0020] Figure 5 A top view of a partial structure of a detection device for an LED display screen module in an embodiment of the present invention;

[0021] Figure 6 Based Figure 2 A structural diagram of a part of the structure of a detection device for an LED display screen module;

[0022] Figure 7 for Figure 5 A partial enlarged view of the middle A;

[0023] Figure 8 for Figure 5 A partial enlarged view of point B in the middle.

[0024] In the figure:

[0025] 1. Detection body; 11. Installation platform;

[0026] 2. Conveying assembly; 21. First conveying part; 211. Conveying frame; 212. Conveying belt; 22. Second conveying part; 23. Switching part; 231. Mounting frame; 232. First adjustment structure; 233. Second adjustment structure; 234. Clamping structure; 2341. Clamping plate; 2342. First suction cup; 2343. Second suction cup;

[0027] 3. Detection assembly; 31. First detection unit; 311. Support frame; 312. First detection camera; 3121. First appearance detection camera; 3122. First lifting structure; 3123. Guide rail seat; 3124. Slide table; 3125. Adjustment knob; 32. Second detection unit; 321. Second appearance detection camera; 322. Bottom plate; 323. Horizontal adjustment structure; 324. Second lifting structure;

[0028] 4. first cleaning section; 41. cleaning rack; 42. first cleaning member;

[0029] 51. dust cover; 52. second cleaning part;

[0030] 6. LED display module. DETAILED DESCRIPTION

[0031] The technical solution of the present invention will be described clearly and completely below 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 creative work are within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the orientations or positional relationships 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 limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0035] like Figures 1 to 8As shown, this embodiment provides a detection device for an LED display screen module, which includes a detection body 1, a conveying component 2, a controller and a plurality of detection components 3. Among them, the cavity of the detection body 1 is provided with an installation platform 11; the conveying component 2 includes a first conveying part 21, a second conveying part 22 and a switching part 23, the first conveying part 21 and the second conveying part 22 are arranged side by side on the installation platform 11, and the conveying directions are opposite, the first conveying part 21 and the second conveying part 22 can both convey the LED display screen module 6, and the switching part 23 can switch the LED display screen module 6 located on the first conveying part 21 to the second conveying part 22; multiple groups of detection components 3 are all located on the installation platform 11, and are arranged at intervals along the conveying direction of the first conveying part 21, the detection component 3 includes a first detection part 31 and a second detection part 32, the first detection part 31 is located above the first conveying part 21, and can perform appearance parameter detection on the LED display screen module 6, the second detection part 32 is located below the first conveying part 21, and can perform appearance parameter detection on the LED display screen module 6; the switching part 23 and the detection part are both electrically connected to the controller, and the controller controls the operation of the switching part 23 by receiving detection signals from the first detection part 31 and the second detection part 32.

[0036] The detection device for LED display screen modules of the present invention is used to first place the LED display screen module 6 on the first conveying part 21, and then the appearance parameters of the LED display screen module 6 are detected by the first detection part 31 and the second detection part 32 at the same time. If the appearance parameters of the LED display screen module 6 are qualified, it is directly transported to the next process through the first conveying part 21; if the appearance parameters of the LED display screen module 6 are unqualified, the controller receives the detection signals of the first detection part 31 and the second detection part 32, and controls the switching part 23 to switch the LED display screen module 6 located on the first conveying part 21 to the second conveying part 22, and then transports the unqualified LED display screen module 6 to the designated position through the second conveying part 22. Such a setting can realize the automatic detection of the appearance parameters of the LED display screen module 6, reduce the inspection omission, improve the product warehousing qualification rate, improve the quality, and effectively solve the problem that the LED display screen in the prior art needs manual inspection, resulting in the omission of inspection items and low work efficiency.

[0037] The detection components 3 are arranged into multiple groups, so that the multiple groups of detection components 3 can be detected simultaneously or independently. If one detection component 3 is abnormal, it can be switched to another group of detection components 3 for use.

[0038] In some embodiments, Figure 5 and Figure 6As shown, the first detection unit 31 includes a support frame 311 and a plurality of first detection cameras 312. The support frame 311 is arranged on the installation platform 11 and is located above the first conveying unit 21, so that it is convenient to detect the appearance parameters above the LED display screen module 6; and a plurality of first detection cameras 312 are spaced apart on the support frame 311 in the horizontal direction to ensure that all the LED display screen modules 6 can be detected; at the same time, the first detection camera 312 can be arranged to be raised and lowered, so as to facilitate the adjustment of the height of the LED display screen module 6 and ensure the detection effect. The first detection camera 312 can be used to detect the appearance parameters of the LED display screen module 6. The appearance parameters detected by the first detection camera 312 can be detection items such as mixed boards of the LED display screen module 6, collision of lamp tubes, surface oil stains, screw leakage or lighting conditions.

[0039] Optionally, the first detection camera 312 includes but is not limited to a CCD detection camera, wherein a CCD camera is any digital camera with a charge coupled device image sensor, where CCD is the abbreviation of charge coupled device (charge coupled device).

[0040] Specifically, Figure 6 and Figure 7 As shown, the first detection camera 312 includes a first appearance detection camera 3121 and a first lifting structure 3122. The first lifting structure 3122 is set on the support frame 311, and the first appearance detection camera 3121 is set on the first lifting structure 3122. The first lifting structure 3122 can be lifted and lowered, so that the first lifting structure 3122 can be used to drive the first appearance detection camera 3121 to lift and lower. Among them, the first lifting structure 3122 includes but is not limited to lifting devices such as hydraulic lifting cylinders and pneumatic lifting cylinders.

[0041] In this embodiment, the first lifting structure 3122 includes a guide rail seat 3123, a slide 3124 and an adjustment knob 3125. The guide rail seat 3123 has a guide protrusion arranged in the vertical direction, and the slide 3124 has a slide groove. The guide rail seat 3123 is arranged on the support frame 311, and the guide protrusion and the slide groove are limited and matched, so that the slide 3124 can slide in the vertical direction, and then the adjustment knob 3125 is inserted into the slide groove and pressed against the guide protrusion. In this way, the slide 3124 can be fixed on the guide rail seat 3123, so as to realize the adjustment of the first appearance inspection camera 3121 in the vertical direction.

[0042] Optionally, the first detection unit 31 further includes a protective cover, which is mounted on the support frame 311 and covers the first detection camera 312 to provide protection.

[0043] In this embodiment, if Figure 2 and Figure 8 As shown, the second detection unit 32 includes a second appearance detection camera 321, a bottom plate 322, a horizontal adjustment structure 323 and a second lifting structure 324. The bottom plate 322 is arranged in the cavity of the detection body 1, the horizontal adjustment structure 323 is arranged on the bottom plate 322, and the second lifting structure 324 is arranged on the horizontal adjustment structure 323. In this way, the second lifting structure 324 can be driven to move horizontally through the horizontal adjustment structure 323, and the second lifting structure 324 can drive the second appearance detection camera 321 to move up and down, thereby achieving the purpose of adjusting the position of the second appearance detection camera 321 according to actual needs.

[0044] It should be noted that the appearance parameters detected by the second appearance inspection camera 321 can be the falling off of electrolytic capacitors, the falling off of power sockets, the falling off of horn sockets, the reversed electrolytic capacitors, the reversed horn sockets, the reversed bottom shell, the reversed polymer capacitors, broken wire ends, mixed boards, lamp tube collisions, PCB laser label leakage, missing or increased magnet pieces, surface oil stains, burned power sockets and other inspection items.

[0045] Optionally, the structure of the horizontal adjustment structure 323 and the structure of the second lifting structure 324 are the same as the structure of the first lifting structure 3122, and are not described in detail herein.

[0046] Specifically, Figure 2 and Figure 3 As shown, the switching part 23 includes a mounting frame 231, a first adjustment structure 232, a second adjustment structure 233 and a clamping structure 234. The first adjustment structure 232 is arranged on the mounting frame 231, the second adjustment structure 233 is arranged on the first adjustment structure 232, and the clamping structure 234 is arranged on the second adjustment structure 233. In this way, the clamping structure 234 can be driven to move in the vertical direction and the horizontal direction by the first adjustment structure 232 and the second adjustment structure 233, so that the clamping structure 234 can switch the LED display screen module 6 located on the first conveying part 21 to the second conveying part 22.

[0047] Optionally, the first adjustment structure 232 includes but is not limited to a linear module.

[0048] Optionally, the second adjustment structure 233 includes but is not limited to lifting devices such as a hydraulic lifting cylinder and a pneumatic lifting cylinder.

[0049] Furthermore, in this embodiment, the clamping structure 234 includes a clamping plate 2341, a first suction cup 2342, and a second suction cup 2343. The clamping plate 2341 and the second adjustment structure 233 are connected, and the first suction cup 2342 and the second suction cup 2343 are arranged on the clamping plate 2341 at intervals. In this way, the first suction cup 2342 and the second suction cup 2343 can both absorb the LED display screen module 6, ensuring the stability and safety of the LED display screen module 6 when moving; at the same time, the LED display screen module 6 can also be protected.

[0050] Specifically, the detection device for the LED display screen module 6 also includes a first cleaning part 4. The detection body 1 has a feed port and corresponds to the first conveying part 21. Among them, the first cleaning part 4 includes a cleaning rack 41 and a first cleaning member 42. The cleaning rack 41 is set on the mounting platform 11 and is located above the first conveying part 21. At the same time, the cleaning rack 41 is located toward the feed port, and the first cleaning member 42 is installed on the cleaning rack 41. The first cleaning member 42 can be used to clean the LED display screen module 6 entering the first conveying part 21, keep the surface of the LED display screen module 6 clean, and avoid false alarms caused by foreign objects.

[0051] Optionally, the first cleaning member 42 includes but is not limited to an ion wind rod and an air blowing device, and the air blowing device and the ion wind rod are used to clean the surface of the LED display screen module 6 .

[0052] Specifically, the detection device for the LED display screen module 6 also includes a dust cover 51 and a second cleaning member 52. The dust cover 51 covers the second detection part 32, so that the second detection part 32 can be protected. The second cleaning member 52 is arranged at the bottom of the mounting platform 11, and the dust cover 51 can be cleaned by the second cleaning member 52. The second cleaning member 52 includes but is not limited to an air blowing device, and the dust cover 51 is cleaned by the air blowing device to avoid the dust cover 51 being covered with dust after long-term use, which affects the detection effect of the second detection part 32.

[0053] Optionally, the detection device for the LED display screen module also includes a first lighting component and a second lighting component, which are respectively arranged at the top and bottom of the first conveying part 21, and illuminate the LED display screen module 6 to improve the detection effect.

[0054] Optionally, the detection device for the LED display screen module further includes a lifting cylinder assembly disposed at the bottom of the first conveying portion 21 , which can lift the LED display screen module 6 .

[0055] Optionally, the detection device for the LED display screen module further includes a beam detection component disposed on both sides of the first conveying portion 21 and the second conveying portion 22 to ensure that the LED display screen module 6 can move on the correct track.

[0056] Optionally, the detection device for the LED display screen module also includes an in-place detection sensor arranged on one side of the switching part, and the in-place detection sensor is electrically connected to the controller. After the controller receives the signal from the in-place detection sensor, it controls the switching part to switch the LED display screen module 6 located on the first conveying part 21 to the second conveying part 22.

[0057] Specifically, the first conveying part 21 includes a conveying frame 211, a driving motor and a conveying belt 212. The conveying frame 211 is set on the installation platform 11, the conveying belt 212 is installed on the conveying frame 211, and the driving motor and the conveying frame 211 are drivingly connected, and the conveying belt 212 is driven by the driving motor to rotate, thereby achieving the purpose of conveying the LED display screen module 6. Among them, the conveying belt 212 is used to carry the LED display screen module 6.

[0058] In this embodiment, the second conveying part 22 includes a conveyor belt, a connecting belt and a rotating motor. The rotating motor is installed on the mounting platform 11. The output shaft of the rotating motor is connected to the transmission belt through the connecting belt to drive the transmission belt to rotate. The transmission belt is used to carry the LED display module 6.

[0059] The working process of the detection device for LED display screen module provided by the present invention is as follows:

[0060] The LED display screen module 6 enters the first conveying part 21 through the feed port, and after arriving at the first station, the surface of the LED display screen module 6 is cleaned by the first cleaning part 42, and then arrives at the second station, and the appearance parameters of the LED display screen module 6 are detected by the first detection part 31 and the second detection part 32 at the same time (detection / scanning is performed simultaneously); if the appearance parameter detection of the LED display screen module 6 is qualified, the LED display screen module 6 is conveyed to the next process through the first conveying part 21, and if the appearance parameter detection of the LED display screen module 6 is unqualified, the controller controls the switching part 23 to switch the LED display screen module 6 located on the first conveying part 21 to the second conveying part 22 (i.e., the unqualified buffer area), completing the product LED display screen module 6 detection workflow.

[0061] Among them, the first station: clean the surface of the LED display module 6 to avoid false alarms caused by foreign objects

[0062] The second process: ① Scan the code: read the QR code of the LED display module 6, detect whether there is a mixed order, and generate a data report at the same time; ② IC (integrated circuit) surface detection: electrolytic capacitor falling off, power socket falling off, horn socket falling off, electrolytic capacitor reverse, horn socket reverse, bottom shell reverse, polymer capacitor reverse, broken wire head, PCB (printed circuit board) leaking laser label, burning power socket, etc.; ③ Lamp surface detection: lamp tube collision, oil stains, screw leakage, lighting conditions, etc.

[0063] The advantages of the detection device for LED display screen modules of the present invention are as follows:

[0064] 1. To improve quality and efficiency, develop and import automatic packaging appearance machines to reduce inspection omissions, increase product warehousing qualification rate, and improve quality. The equipment will automatically detect online, and the front and back will be connected to improve automation and efficiency;

[0065] 2. Reserve double-station detection (i.e. multiple sets of detection components) to improve production capacity;

[0066] 3. NG product material collection and buffering area (i.e. the second conveying part 22 is designed);

[0067] 4. There are many inspection items: electrolytic capacitor falling off, power socket falling off, horn socket falling off, electrolytic capacitor reverse, horn socket reverse, bottom shell reverse, polymer capacitor reverse, broken wire ends, mixed boards, lamp tube collision, PCB laser label leakage, missing or increased magnet pieces, oil stains, burned power socket, etc.

[0068] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A detection device for LED display screen module, characterized in that: include: A detection body (1), wherein a mounting platform (11) is provided in a cavity of the detection body (1); A conveying assembly (2), comprising a first conveying portion (21), a second conveying portion (22) and a switching portion (23); the first conveying portion (21) and the second conveying portion (22) are arranged side by side on the installation platform (11) and have opposite conveying directions; the first conveying portion (21) and the second conveying portion (22) are both capable of conveying LED display screen modules (6); and the switching portion (23) is capable of switching the LED display screen module (6) located on the first conveying portion (21) to the second conveying portion (22); A plurality of detection components (3), each of which is located on the installation platform (11) and is arranged at intervals along the conveying direction of the first conveying portion (21); the detection components (3) include a first detection portion (31) and a second detection portion (32); the first detection portion (31) is located above the first conveying portion (21) and is capable of performing appearance parameter detection on the LED display screen module (6); and the second detection portion (32) is located below the first conveying portion (21) and is capable of performing appearance parameter detection on the LED display screen module (6); The controller is electrically connected to the switching unit (23) and the detection unit. The controller controls the operation of the switching unit (23) by receiving detection signals from the first detection unit (31) and the second detection unit (32).

2. The detection device for LED display screen module according to claim 1, characterized in that: The first detection part (31) comprises a support frame (311) and a plurality of first detection cameras (312); the support frame (311) is arranged on the installation platform (11) and is located above the first conveying part (21); the plurality of first detection cameras (312) are spaced apart on the support frame (311) in a horizontal direction; the first detection cameras (312) are arranged to be liftable and are capable of performing appearance parameter detection on the LED display screen module (6).

3. The detection device for LED display screen module according to claim 2, characterized in that: The first detection camera (312) includes a first appearance detection camera (3121) and a first lifting structure (3122), wherein the first lifting structure (3122) is arranged on the support frame (311), and the first appearance detection camera (3121) is arranged on the first lifting structure (3122), and the first lifting structure (3122) can be lifted to drive the first appearance detection camera (3121) to be lifted and lowered.

4. The detection device for LED display screen module according to claim 3, characterized in that: The first lifting structure (3122) includes a guide rail seat (3123), a slide (3124) and an adjusting knob (3125); the guide rail seat (3123) has a guide protrusion arranged along the vertical direction; the slide (3124) has a slide groove; the guide rail seat (3123) is arranged on the support frame (311); the guide protrusion and the slide groove are limitedly matched; the adjusting knob (3125) penetrates into the slide groove and presses against the guide protrusion; the first appearance detection camera (3121) is arranged on the slide (3124).

5. The detection device for LED display screen module according to claim 1, characterized in that: The second detection unit (32) includes a second appearance detection camera (321), a base plate (322), a horizontal adjustment structure (323) and a second lifting structure (324); the base plate (322) is arranged in the cavity of the detection body (1); the horizontal adjustment structure (323) is arranged on the base plate (322); the second lifting structure (324) is arranged on the horizontal adjustment structure (323); the second appearance detection camera (321) is arranged on the second lifting structure (324); the horizontal adjustment structure (323) can drive the second lifting structure (324) to move horizontally; and the second lifting structure (324) can drive the second appearance detection camera (321) to move up and down.

6. The detection device for LED display screen module according to claim 1, characterized in that: The switching part (23) comprises a mounting frame (231), a first adjustment structure (232), a second adjustment structure (233) and a clamping structure (234); the mounting frame (231) is arranged on the mounting platform (11); the first adjustment structure (232) is arranged on the mounting frame (231); the second adjustment structure (233) is arranged on the first adjustment structure (232); the clamping structure (234) is arranged on the second adjustment structure (233); the first adjustment structure (232) can drive the second adjustment structure (233) to move in a horizontal direction; the second adjustment structure (233) can drive the clamping structure (234) to move in a vertical direction; and the clamping structure (234) can switch the LED display screen module (6) located on the first conveying part (21) to the second conveying part (22).

7. The detection device for LED display screen module according to claim 6, characterized in that: The clamping structure (234) comprises a clamping plate (2341), a first suction cup (2342) and a second suction cup (2343); the clamping plate (2341) is connected to the second adjustment structure (233); the first suction cup (2342) and the second suction cup (2343) are arranged on the clamping plate (2341) at intervals; and the first suction cup (2342) and the second suction cup (2343) are both capable of adsorbing the LED display screen module (6).

8. The detection device for LED display screen module according to claim 1, characterized in that: The detection device for the LED display screen module (6) further comprises a first cleaning section (4), the first cleaning section (4) comprising a cleaning frame (41) and a first cleaning member (42), the cleaning frame (41) being arranged on the mounting platform (11) and being located above the first conveying section (21), the first cleaning member (42) being installed on the cleaning frame (41) and being capable of cleaning the LED display screen module (6) entering the first conveying section (21).

9. The detection device for LED display screen module according to claim 1, characterized in that: The detection device for the LED display screen module (6) further comprises a dust cover (51) and a second cleaning component (52), wherein the dust cover (51) covers the second detection portion (32), and the second cleaning component (52) is arranged at the bottom of the installation platform (11) and is capable of cleaning the dust cover (51).

10. The detection device for LED display screen module according to claim 1, characterized in that: The first conveying part (21) comprises a conveying frame (211), a driving motor and a conveying belt (212); the conveying frame (211) is arranged on the mounting platform (11); the conveying belt (212) is mounted on the conveying frame (211); the driving motor and the conveying frame (211) are drivingly connected to drive the conveying belt (212) to rotate; and the conveying belt (212) is used to carry the LED display screen module (6).

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