Testing device for LED display screen module

Abstract

The utility model provides an LED display screen module testing device which comprises a detection cylinder, five sets of placing frames are arranged on the inner wall of the detection cylinder, openings are formed in the same side of the detection cylinder and the placing frames, the back faces of the placing frames are rotationally connected with the other end of the detection cylinder through shaft rings, a driving assembly is arranged at the top of the detection cylinder, and the driving assembly is connected with the detection cylinder through a connecting rod. The driving assembly comprises a gear ring, the gear ring is rotationally installed on the outer wall of the back face of the detection cylinder through a bearing, one end of the containing frame is fixed to the gear ring, and a first conveying table and a second conveying table are installed at the inlet end of the detection cylinder. The modules are arranged in the annular placing frame in sequence, the placing frame drives the modules to rotate circularly under the action of the driving assembly to carry out multi-station testing, the tested modules are sent out through the pushing assembly, sending-in and sending-out in the stage are carried out synchronously, and the continuous detection efficiency of the modules is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of LED display screen module testing, in particular to a device for testing LED display screen modules. Background Art

[0002] LED display is a flat panel display, which is composed of small LED module panels and is used to display various information such as text, images, videos, and video signals. After the production of LED display modules, they need to be tested. The existing testing device needs to use voltmeter, ammeter and resistance meter to measure separately, which is time-consuming and has low testing efficiency.

[0003] Patent CN215339947U proposes a LED display unit module testing device, which sets a sleeve rotating rod on the support block, welds a roller at one end of the rotating rod, and respectively sets testing mechanisms connected to an ammeter, a voltmeter and a resistance meter on the outer walls and the top of both sides of the roller. During the test, it is only necessary to start the servo motor to adjust the test pen that needs to test data to one side of the LED display unit module, start the first electric push rod to drive the test pen to contact the LED display unit module for testing, and different data can be tested by rotating the servo motor. Compared with manual replacement of the test device, it greatly saves time, improves the test effect, and improves the work efficiency of the test. By setting a U-shaped support frame on the top of the base and setting a fixing mechanism on the U-shaped support frame, when the LED display unit module needs to be fixed, it is only necessary to place the LED display unit module in the position of the installation slot, and start the second electric push rod to drive the clamping plate to clamp and fix the LED display unit module.

[0004] The problem with the above solution is that the LED display unit module needs to be fixed by clamping, but this method requires manual placement and clamping of the LED display unit module each time it is tested, and then it is removed after the test is completed, which requires human intervention, is time-consuming and labor-intensive, and has low efficiency. It is easy to make mistakes during the clamping process, affecting the test effect. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a device for testing LED display modules to solve the problems raised in the above-mentioned background technology. The utility model has a novel structure. The module is sent into the detection cylinder through a first conveyor platform and placed in an annular placement frame in sequence. Under the action of a driving component, the placement frame drives the module to rotate in a cycle for multi-station testing, and the tested module is sent out by a pushing component. In this stage, the sending in and sending out are carried out simultaneously to improve the efficiency of continuity detection of the module.

[0006] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a device for testing LED display screen modules, including a detection cylinder, five groups of placement frames are arranged on the inner wall of the detection cylinder, an opening is arranged on the same side of the detection cylinder and the placement frame, the back side of the placement frame is rotatably connected to the other end of the detection cylinder through a shaft ring, a driving assembly is arranged on the top of the detection cylinder, and the driving assembly includes a gear ring, a gear ring is rotatably installed on the outer wall of the back side of the detection cylinder through a bearing, and one end of the placement frame is fixed to the gear ring, a first conveying platform and a second conveying platform are installed at the inlet end of the detection cylinder, the second conveying platform is located on one side of the first conveying platform, a pushing assembly is arranged on the top of the detection cylinder, and the pushing assembly includes a front push plate, and the front push plate slides along the surface of the first conveying platform.

[0007] Furthermore, a baffle is fixed at the inlet end of the detection cylinder, and the baffle is provided with notches at the positions of the first conveying platform and the second conveying platform, and the first conveying platform and the second conveying platform correspond to the inlets of the two groups of placement frames respectively.

[0008] Furthermore, the driving assembly also includes a motor, and the motor is fixed to the top of the detection cylinder near the back side, and a gear is fixed to the output end of the motor, and the gear is meshingly connected with the ring gear.

[0009] Furthermore, the pushing assembly also includes a one-way electric push rod, the top of the detection cylinder is fixed with a one-way electric push rod, and the extended end of the one-way electric push rod is fixed with a two-way electric push rod, the two extended ends of the two-way electric push rod are fixed with a connecting frame, and the front push plate is fixedly connected to one side of the connecting frame.

[0010] Furthermore, a rear push plate is fixed at the bottom of the connecting frame on the other side of the bidirectional electric push rod, and the rear push plate slides into the rear end of the detection cylinder. A through groove is opened on the back of the placement frame, and the rear push plate can slide through the through groove.

[0011] Furthermore, a pressing frame is arranged on the surface of the placing frame, and sliding grooves are provided on the inner walls on both sides of the placing frame, and the two sides of the pressing frame slide along the pressing frame.

[0012] Furthermore, springs are fixed inside the slide grooves on both sides of the placement frame, and the other ends of the springs are fixedly connected to the sides of the pressing frame.

[0013] Furthermore, a central column is fixed at the center of the circle inside the detection cylinder, and three groups of testing devices are installed at equal intervals on the surface of the central column.

[0014] Beneficial effects of the utility model:

[0015] The utility model can squeeze the module into the placement frame through the round rod of the pressing frame, and then press it on the surface of the module through the elastic force of the spring, and cooperate with the placement frame to limit the module. The two ends of the module limited by the pressing frame are not within the test range, so as not to affect the test. At the same time, limiting the two ends of the module can prevent the module from falling when the placement frame rotates.

[0016] The utility model drives the gear to rotate and mesh with the gear ring through the motor, and the gear ring drives five groups of placement frames to rotate cyclically inside the detection cylinder to perform cyclic testing.

[0017] When the utility model sends in the module, the bidirectional electric push rod controls the movement of the connecting frames at both ends, the front push plate moves to the position of the front end of the module, the rear push plate corresponds to the position of the through-slot, the unidirectional electric push rod drives the bidirectional electric push rod and the connecting frame as well as the front push plate to contact the untested module, the rear push plate passes through the through-slot into the placement frame, the bidirectional electric push rod is retracted, the front push plate pushes the untested module into the placement frame, and the rear push plate pushes the tested module out of the placement frame, thereby completing the automatic sending in and out of the module.

[0018] Compared with the prior art, the utility model delivers the module into the detection cylinder through the first conveying platform and places it in the annular placement frame in sequence. Under the action of the driving component, the placement frame drives the module to rotate cyclically to perform multi-station testing, and the module that has completed the test is sent out by the pushing component. In this stage, the sending in and sending out are carried out synchronously, thereby improving the efficiency of continuous detection of the module. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall front structure of a device for testing LED display screen modules according to the utility model;

[0020] Figure 2 This is a schematic diagram of the overall back structure of a device for testing LED display screen modules according to the utility model;

[0021] Figure 3 This is a schematic diagram of a rear push plate inserted into a placement frame for a LED display module testing device of the utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of a detection tube for a LED display module testing device of the utility model;

[0023] Figure 5 The utility model is a schematic diagram of a placement frame structure for an LED display screen module testing device.

[0024] In the figure: 1. detection cylinder; 11. center column; 12. placement frame; 13. through slot; 14. baffle; 15. test device; 16. pressure frame; 17. spring; 2. first conveyor platform; 21. second conveyor platform; 3. drive assembly; 31. motor; 32. gear; 33. gear ring; 4. pushing assembly; 41. bidirectional electric push rod; 42. connecting frame; 43. front push plate; 44. rear push plate; 45. unidirectional electric push rod. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] See also Figures 1 to 5 The utility model provides a technical solution: a device for testing LED display screen modules, comprising a detection cylinder 1, five groups of placement frames 12 are arranged on the inner wall of the detection cylinder 1, an opening is arranged on the same side of the detection cylinder 1 and the placement frame 12, the back of the placement frame 12 is rotatably connected with the other end of the detection cylinder 1 through a shaft ring, a driving component 3 is arranged on the top of the detection cylinder 1, and the driving component 3 includes a gear ring 33, a gear ring 33 is rotatably installed on the outer wall of the back of the detection cylinder 1 through a bearing, and one end of the placement frame 12 is fixed to the gear ring 33, and a first conveying platform 2 and a first conveying platform 3 are installed at the inlet end of the detection cylinder 1 The second conveyor platform 21 is located at one side of the first conveyor platform 2. A pushing component 4 is provided on the top of the detection cylinder 1, and the pushing component 4 includes a front push plate 43. The front push plate 43 slides along the surface of the first conveyor platform 2. When the device is used, the modules are evenly stacked on the first conveyor platform 2 and transported by the first conveyor platform 2. The modules are pushed into the placement frame 12 by the pushing component 4, and driven to rotate inside the detection cylinder 1 by the driving component 3, and tested, and then pushed out from the second conveyor platform 21 (a blocking plate can be provided on the outside of the second conveyor platform 21 to prevent the modules from falling).

[0027] In this embodiment, a baffle 14 is fixed at the inlet end of the detection cylinder 1, and a notch is opened on the baffle 14 at the position of the first conveying platform 2 and the second conveying platform 21. The first conveying platform 2 and the second conveying platform 21 correspond to the entrances of the two groups of placement frames 12 respectively. The pushing assembly 4 also includes a one-way electric push rod 45. The top of the detection cylinder 1 is fixed with a one-way electric push rod 45, and the extended end of the one-way electric push rod 45 is fixed with a two-way electric push rod 41. The two extended ends of the two-way electric push rod 41 are fixed with connecting The frame 42 is provided with a front push plate 43, and the front push plate 43 is fixedly connected to the connecting frame 42 on one side. A rear push plate 44 is fixed to the bottom of the connecting frame 42 on the other side of the bidirectional electric push rod 41. The rear push plate 44 slides into the rear end of the detection tube 1. A through slot 13 is provided on the back of the placement frame 12, and the rear push plate 44 can slide through the through slot 13. A central column 11 is fixed at the center of the circle inside the detection tube 1, and three groups of test devices 15 are equidistantly installed on the surface of the central column 11. The testing method of the three groups of test devices 15 on the central column 11 is the same as the technical method used in patent CN215339947U (the position of the test device 15 here can be set on the central column 11 according to the test requirements, and the contact end of the test device 15 can be pushed by a structure such as an electric drive push rod, so as to contact and test the surface of the module. This part is a common prior art and is not described in detail in this scheme). Different tests are performed on the other three stations other than the sending-in and sending-out stations. When the module is sent in, the bidirectional electric push rod 41 controls the two The end connecting frame 42 moves, the front push plate 43 moves to the position of the front end of the module, the rear push plate 44 corresponds to the position of the through slot 13, the one-way electric push rod 45 drives the two-way electric push rod 41 and the connecting frame 42 and the front push plate 43 to contact the untested module, the rear push plate 44 passes through the through slot 13 into the placement frame 12, the two-way electric push rod 41 is retracted, the front push plate 43 pushes the untested module into the placement frame 12, and the rear push plate 44 pushes the tested module out of the placement frame 12, thereby completing the automatic feeding in and out of the module.

[0028] In this embodiment, the driving assembly 3 also includes a motor 31. The motor 31 is fixed to the top of the detection tube 1 near the back, and a gear 32 is fixed to the output end of the motor 31. The gear 32 is meshed and connected with a ring gear 33. The motor 31 drives the gear 32 to rotate and mesh with the ring gear 33. The ring gear 33 drives the five groups of placement frames 12 to rotate in a cycle inside the detection tube 1 to perform a cyclic test.

[0029] In this embodiment, a pressing frame 16 is provided on the surface of the placing frame 12, and sliding grooves are provided on the inner walls on both sides of the placing frame 12, and the two sides of the pressing frame 16 slide along the pressing frame 16, and springs 17 are fixed inside the sliding grooves on both sides of the placing frame 12, and the other end of the spring 17 is fixedly connected to the side of the pressing frame 16, and the front and rear ends of the pressing frame 16 are round rods, on which a protective layer (rubber pads that will not scratch the LED display module, etc.) is provided. When the module is pushed or pushed out at the same time, the module can be squeezed into the inside of the placing frame 12 through the round rod of the pressing frame 16, and then pressed on the surface of the module by the elastic force of the spring 17, and the module is limited by the placing frame 12. The two ends of the module limited by the pressing frame 16 are not within the test range, and thus will not affect the test. At the same time, limiting the two ends of the module can prevent the module from falling when the placing frame 12 rotates.

[0030] When the device is used, the modules are evenly stacked on the first conveyor platform 2 and conveyed by the first conveyor platform 2. The bidirectional electric push rod 41 controls the movement of the connecting frames 42 at both ends, the front push plate 43 moves to the position of the front end of the module, and the rear push plate 44 corresponds to the position of the through slot 13. The unidirectional electric push rod 45 drives the bidirectional electric push rod 41, the connecting frame 42 and the front push plate 43 to contact the untested module, and the rear push plate 44 penetrates into the placement frame 12 through the through slot 13. The bidirectional electric push rod 41 is retracted, and the front push plate 43 pushes the untested module into the placement frame 12, and the rear push plate 44 pushes the tested module out of the placement frame 12, thereby completing the automatic feeding in and out of the module. The motor 31 drives the gear 32 to rotate and mesh with the gear ring 33, and the gear ring 33 drives the five groups of placement frames 12 to circulate inside the detection tube 1 for cyclic testing, and then the test is carried out, and then it is pushed out from the second conveyor platform 21.

[0031] The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention.

[0032] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A device for testing a LED display module, comprising a detection tube (1), characterized in that: Five groups of placement frames (12) are arranged on the inner wall of the detection cylinder (1), an opening is arranged on the same side of the detection cylinder (1) and the placement frame (12), the back side of the placement frame (12) is rotatably connected to the other end of the detection cylinder (1) through a shaft ring, a driving assembly (3) is arranged on the top of the detection cylinder (1), and the driving assembly (3) comprises a gear ring (33), a gear ring (33) is rotatably mounted on the outer wall of the back side of the detection cylinder (1) through a bearing, and one end of the placement frame (12) is fixed to the gear ring (33), a first conveying platform (2) and a second conveying platform (21) are arranged at the inlet end of the detection cylinder (1), the second conveying platform (21) is located on one side of the first conveying platform (2), a pushing assembly (4) is arranged on the top of the detection cylinder (1), and the pushing assembly (4) comprises a front push plate (43), and the front push plate (43) slides along the surface of the first conveying platform (2).

2. The LED display module testing device according to claim 1, characterized in that: A baffle (14) is fixed to the inlet end of the detection cylinder (1), and a notch is provided on the baffle (14) at the position of the first conveying platform (2) and the second conveying platform (21), wherein the first conveying platform (2) and the second conveying platform (21) correspond to the inlets of the two sets of placement frames (12) respectively.

3. The LED display module testing device according to claim 1, characterized in that: The driving assembly (3) further comprises a motor (31). The motor (31) is fixed to the top of the detection cylinder (1) near the back, and a gear (32) is fixed to the output end of the motor (31). The gear (32) is meshingly connected with a gear ring (33).

4. The LED display module testing device according to claim 1, characterized in that: The pushing assembly (4) further comprises a one-way electric push rod (45), the one-way electric push rod (45) being fixed to the top of the detection cylinder (1), and a two-way electric push rod (41) being fixed to the extended end of the one-way electric push rod (45), a connecting frame (42) being fixed to the two extended ends of the two-way electric push rod (41), and a front push plate (43) being fixedly connected to one side of the connecting frame (42).

5. The LED display module testing device according to claim 4, characterized in that: A rear push plate (44) is fixed to the bottom of the connecting frame (42) on the other side of the bidirectional electric push rod (41), and the rear push plate (44) slides into the rear end of the detection tube (1). A through groove (13) is provided on the back of the placement frame (12), and the rear push plate (44) can slide through the through groove (13).

6. The LED display module testing device according to claim 1, characterized in that: A pressing frame (16) is arranged on the surface of the placing frame (12), and sliding grooves are provided on the inner walls on both sides of the placing frame (12), and both sides of the pressing frame (16) slide along the pressing frame (16).

7. The device for testing LED display screen modules according to claim 6, characterized in that: Springs (17) are fixed inside the slide grooves on both sides of the placement frame (12), and the other end of the spring (17) is fixedly connected to the side of the pressing frame (16).

8. The LED display module testing device according to claim 1, characterized in that: A central column (11) is fixed at the center of a circle inside the detection cylinder (1), and three groups of testing devices (15) are installed at equal intervals on the surface of the central column (11).

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