Screen performance testing device for display screen production

Abstract

The invention belongs to the technical field of display screen production detection, and discloses a screen performance testing device for display screen production, which comprises a base, a rack is fixedly mounted at the top end of the base, a darkroom is fixedly mounted at the top end of the rack, and a through groove is formed in the rear end of the darkroom. A detection camera is fixedly installed in the middle of the top end of the darkroom, the shooting end of the detection camera penetrates through the top end of the darkroom and is located in the darkroom, and a movable plate is arranged between the darkroom and the base. By controlling the lifting of the movable plate and linking the limiting assembly, the limiting and clamping process of the display screen can be automatically completed through the limiting assembly while the lifting of the movable plate is realized, and meanwhile, the display screen can be automatically fed into the darkroom, that is, the display screen can be fed into a test environment while the limiting and clamping are completed; manual observation testing is not needed, testing steps are reduced, the device can rapidly test a single display screen, and the overall testing efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of display screen production detection, and specifically relates to a screen performance testing device used in display screen production. Background Art

[0002] The production of display screens is a complex process that integrates precision machining, high-tech materials and advanced manufacturing technology. It starts with the preparation of high-quality glass substrates. Through precision coating, thin film technology and other technical means, key components such as conductive layers, liquid crystal layers, and color filters are constructed on the substrate. After circuit production, assembly packaging, and strict testing and quality control, a display screen with high definition, bright colors and stable performance is finally created. It is widely used in smart phones, televisions, industrial control, medical equipment and other fields. The display screen needs to be tested for screen performance before it leaves the factory, and it can only be shipped if the test is qualified.

[0003] Conventional display performance tests mainly test the display performance of the display. Usually, after the display is powered on, the display is played with multiple different test screens through external devices, and the display performance is tested manually in a dark room by observing multiple screens with the naked eye. This test process requires manual switching between the dark room and the non-dark room. The light changes greatly, which affects the vision of the human eye and will have a certain impact on the test judgment. At the same time, during the test, the display needs to be manually picked up and placed on the test bench and the signal cable is manually plugged in, and the overall efficiency is low.

[0004] The current test method is to place the display screen on the test bench, fix it with limiters, connect it to the signal line, and perform the corresponding test in a darkroom after the connection is completed. After the test is completed, the signal line needs to be manually unplugged, the limiter is released, and the display screen is manually pushed out. The entire discharge process takes a long time, which seriously affects the inspection efficiency of batch inspection of display screens and urgently needs to be improved. Summary of the invention

[0005] The purpose of the present invention is to provide a screen performance testing device for display screen production to solve the problems raised in the above background technology.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a screen performance testing device for display screen production, comprising a base, a frame is fixedly installed on the top of the base, a darkroom is fixedly installed on the top of the frame, a through slot is opened at the rear end of the darkroom, a detection camera is fixedly installed in the middle of the top of the darkroom, the shooting end of the detection camera passes through the top of the darkroom and is located inside the darkroom, a movable plate is provided between the darkroom and the base, a main cylinder is fixedly installed in the middle of the top of the base, the output end of the main cylinder is connected to the middle of the bottom end of the movable plate, main guide rails are installed at the positions near the four corners of the top of the base, a limiting component is provided between the main guide rail and the movable plate, guide wheels are movably installed at the positions near the four corners of the top of the movable plate, the guide wheels rotate relative to the movable plate, an adjustment guide rail located directly below the through slot is fixedly installed at the bottom end of the detection camera, a plug-in component is movably connected inside the adjustment guide rail, one end of the plug-in component is fixedly connected to the rear side position of the bottom end of the movable plate, and a pusher component is fixedly installed at one end of the plug-in component near the movable plate.

[0007] When testing the performance of the display screen, the entire device is in the initial state, that is, there is a certain gap between the bottom of the darkroom and the movable plate, the limit assembly is in a loose state, the movable plate is at the lowest point, and the distance between the plug-in assembly and the push assembly and the through slot is also at the maximum value;

[0008] When testing the display screen, the display screen needs to be pushed into the device from the front, that is, the display screen is pushed from the front to the position between the movable plate and the darkroom until the darkroom can completely cover the display screen. At this time, the bottom end of the display screen can contact the top end of the guide wheel, completing the loading process of the display screen.

[0009] As a further technical solution of the present invention, the limiting assembly includes four guide blocks, which are movably connected to four main rails, and the top of the guide blocks are fixedly installed with a first fixed seat, and the end of the first fixed seat away from the guide block is movably connected to a support rod through a rotating shaft.

[0010] As a further technical solution of the present invention, one end of the support rod away from the first fixed seat is movably connected to the second fixed seat through a rotating shaft, and the second fixed seat is fixedly connected to the bottom end of the movable plate near the four corners.

[0011] As a further technical solution of the present invention, a first fixed seat is installed between the front and rear guide blocks, and the top of the first fixed seat is fixedly connected with a clamping plate, which is located on the left and right sides above the movable plate, and the relatively close ends of the two clamping plates are provided with anti-slip grooves.

[0012] When the display screen is completely placed above the movable plate, its extension can be controlled by opening the main air cylinder, and the movable plate automatically rises with the display screen. At the same time, when the movable plate moves upward, the two support rods at the bottom are deflected, that is, the two support rods are deflected toward the middle, and thrust is applied to the four guide blocks. At this time, the left and right guide blocks are relatively close to each other under the guidance of the main guide rail, and the two first fixing seats are driven to be relatively close, and finally the two clamping plates are driven to be relatively close, and the display screen at the top of the movable plate is clamped to a limited position. At the same time, during the clamping process, due to the rise of the movable plate, the display screen can be synchronously driven to rise to the inside of the darkroom.

[0013] When the display screen is completely inside the darkroom and the power and signal access are completed, the external light of the darkroom can be blocked, the display screen can be photographed by the detection camera, and the display comparison can be performed through the external monitor to complete the display screen testing process.

[0014] By controlling the lifting of the movable plate and linking the limit assembly, the movable plate can be raised while the limit assembly can automatically complete the limit clamping process of the display screen, and the display screen can be automatically sent to the inside of the darkroom, that is, the display screen can be sent to the test environment while the limit clamping is completed, and there is no need for manual observation and testing, which reduces the test steps, so that the device can quickly test a single display screen and improve the overall test efficiency.

[0015] As a further technical solution of the present invention, the plug-in assembly includes a mounting frame, a third fixed seat is fixedly installed on the side of the mounting frame away from the movable plate, the end of the third fixed seat away from the mounting frame is movably connected to a connecting rod via a rotating shaft, and the end of the connecting rod away from the third fixed seat is movably connected to a fourth fixed seat via a rotating shaft.

[0016] As a further technical solution of the present invention, a card block is fixedly installed on the top of the fourth fixed seat, and the card block is movably connected to the adjustment guide rail. The fourth fixed seat is displaced forward and backward relative to the adjustment guide rail, and a signal plug connector is fixedly connected to the top of the card block. The signal plug connector is located directly behind the through slot, and the signal plug connector is connected to the external signal line.

[0017] When the display screen is limited and clamped, due to the upward displacement of the movable plate, the mounting frame is simultaneously driven to move upward. At this time, since the adjustment guide rail cannot move upward and the distance between the adjustment guide rail and the mounting frame becomes smaller, a thrust can be applied to the connecting rod. At this time, the connecting rod deflects toward the direction close to the darkroom and applies a thrust to the card block. At this time, the card block moves toward the darkroom and drives the signal plug connector to move toward the through slot until the signal plug connector is connected to the signal connection end of the display screen. Then, the display screen can be tested.

[0018] By utilizing the limit clamping of the display screen and the process of automatically rising to the darkroom, the automatic upward movement of the display screen can realize the automatic forward movement of the signal connector, that is, the limit clamping of the display screen and the automatic entry into the darkroom are completed while realizing the automatic access to power and signals. The whole process is completed automatically without manual assistance, that is, only the display screen needs to be manually sent into the device to quickly realize automatic clamping and automatic access, further reducing the test steps and improving the test efficiency.

[0019] As a further technical solution of the present invention, the pushing assembly includes a fixed frame, which is installed on the side of the block close to the movable plate and located at the bottom end of the adjusting guide rail. A limiting frame is fixedly installed on the front end of the fixed frame. A push rod is movably sleeved inside the limiting frame, and the push rod moves forward and backward relative to the limiting frame.

[0020] As a further technical solution of the present invention, the rear end of the push rod is fixedly connected to a limiting plate, the front end of the push rod passes through the front end of the limiting frame and is fixedly connected to an electromagnetic plate, the outer side surface of the push rod is movably sleeved with a limiting spring, and the front and rear ends of the limiting spring are respectively connected to one end of the limiting frame and one end of the limiting plate.

[0021] As a further technical solution of the present invention, when the electromagnetic plate and the limit frame are adsorbed on each other, the limit spring is in an extreme tension state.

[0022] In the initial state and during the entire test process, the power of the electromagnetic plate is always kept on, that is, the electromagnetic plate and the limit frame are in a state of mutual adsorption;

[0023] When the display screen is automatically tested by shooting with the detection camera, the main cylinder can be controlled to shorten, and the movable plate will drop accordingly, driving the mounting frame to drop. At this time, the signal connector automatically moves backward to release the signal and power access, and the limit assembly automatically resets, that is, the two clamps automatically move away, releasing the limit clamping on both ends of the display screen. When the movable plate returns to its initial height, one end of the display screen corresponds to the pushing assembly, and the power supply of the electromagnetic plate can be turned off. At this time, the limit spring automatically resets, and the electromagnetic plate and the push rod automatically move forward to apply a force to the rear end of the display screen. At this time, the display screen is subjected to the thrust and the rolling of the guide wheel, and can be automatically pushed out from the top of the movable plate to complete the discharging process.

[0024] By utilizing the automatic clamping and automatic signal access process of the device, the forward displacement of the signal plug connector can be achieved while the automatic forward movement of the push assembly can be achieved. The rear end of the display screen is automatically limited by the forward displacement of the push assembly to complete the deviation correction of the display screen. At the same time, the reset process of the device can be utilized to make the push assembly drop to the initial height and correspond to the display screen. The display screen is automatically pushed out by the automatic reset of the push assembly to complete the automatic discharging process of the display screen, thereby avoiding the complicated discharging steps of traditional devices and improving the discharging efficiency.

[0025] The beneficial effects of the present invention are as follows:

[0026] 1. The present invention controls the lifting and lowering of the movable plate and links the limit assembly, so that while the movable plate is rising, the limit clamping process of the display screen can be automatically completed through the limit assembly, and the display screen can be automatically sent to the inside of the darkroom, that is, the display screen can be sent to the test environment while the limit clamping is completed, and there is no need for manual observation and testing, which reduces the test steps, so that the device can quickly test a single display screen and improve the overall test efficiency.

[0027] 2. The present invention utilizes the process of limiting the position of the display screen and automatically rising to the darkroom, and realizes the automatic forward movement of the signal plug connector through the automatic upward movement of the display screen, that is, the limit clamping of the display screen and the automatic entry into the darkroom are completed while realizing the automatic access of power and signals. The whole process is completed automatically without manual assistance, that is, only the display screen needs to be manually sent into the device to quickly realize automatic clamping and automatic access, further reducing the test steps and improving the test efficiency.

[0028] 3. The present invention utilizes the process of automatic clamping and automatic signal access of the device to realize the forward displacement of the signal plug connector and the automatic forward movement of the pushing assembly. The rear end of the display screen is automatically limited by the forward displacement of the pushing assembly to complete the deviation correction of the display screen. At the same time, the reset process of the device can be utilized to make the pushing assembly drop to the initial height and correspond to the display screen, and the display screen is automatically pushed out by the automatic reset of the pushing assembly to complete the automatic discharging process of the display screen, thereby avoiding the complicated discharging steps of traditional devices and improving the discharging efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a front schematic diagram of the overall structure of the present invention;

[0030] Figure 2 It is a back schematic diagram of the overall structure of the present invention;

[0031] Figure 3 It is a cross-sectional schematic diagram of the internal structure of the darkroom of the present invention;

[0032] Figure 4It is a schematic diagram of the coordination of the main rail, the movable plate and the limit assembly structure of the present invention;

[0033] Figure 5 This is an exploded schematic diagram of the main guide rail and the limit assembly structure of the present invention;

[0034] Figure 6 It is a schematic diagram of the coordination of the structure of the adjusting guide rail, the plug-in assembly and the pusher assembly of the present invention;

[0035] Figure 7 It is an exploded schematic diagram of the structure of the adjusting guide rail and the plug-in assembly of the present invention;

[0036] Figure 8 It is a separate exploded schematic diagram of the pusher assembly structure of the present invention.

[0037] In the figure: 1. base; 2. frame; 3. darkroom; 4. through slot; 5. detection camera; 6. main guide; 7. main cylinder; 8. movable plate; 9. guide wheel; 10. adjustment guide; 11. limit assembly; 111. guide block; 112. first fixed seat; 113. second fixed seat; 114. support rod; 115. clamping plate; 12. plug-in assembly; 121. mounting bracket; 122. third fixed seat; 123. fourth fixed seat; 124. block; 125. signal plug connector; 126. connecting rod; 13. push assembly; 131. fixed bracket; 132. limit bracket; 133. limit plate; 134. limit spring; 135. push rod; 136. electromagnetic plate. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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.

[0039] like Figures 1 to 8As shown, in an embodiment of the present invention, a screen performance testing device for display screen production includes a base 1, a frame 2 is fixedly installed on the top of the base 1, a darkroom 3 is fixedly installed on the top of the frame 2, a through slot 4 is provided at the rear end of the darkroom 3, a detection camera 5 is fixedly installed in the middle of the top of the darkroom 3, a shooting end of the detection camera 5 passes through the top of the darkroom 3 and is located inside the darkroom 3, a movable plate 8 is provided between the darkroom 3 and the base 1, a main cylinder 7 is fixedly installed in the middle of the top of the base 1, the output end of the main cylinder 7 is connected to the middle of the bottom end of the movable plate 8, and the bottom Main guide rails 6 are installed at the top of the seat 1 near the four corners, and a limit assembly 11 is provided between the main guide rails 6 and the movable plate 8. Guide wheels 9 are movably installed at the top of the movable plate 8 near the four corners, and the guide wheels 9 rotate relative to the movable plate 8. An adjustment guide rail 10 located directly below the through slot 4 is fixedly installed at the bottom end of the detection camera 5, and a plug-in assembly 12 is movably connected inside the adjustment guide rail 10. One end of the plug-in assembly 12 is fixedly connected to the rear side of the bottom end of the movable plate 8, and a pusher assembly 13 is fixedly installed at one end of the plug-in assembly 12 near the movable plate 8.

[0040] When testing the performance of the display screen, the entire device is in an initial state, that is, there is a certain gap between the bottom end of the darkroom 3 and the movable plate 8, the limit assembly 11 is in a loose state, and the movable plate 8 is at the lowest point, and the distances between the plug assembly 12 and the push assembly 13 and the through slot 4 are also at the maximum value;

[0041] When testing the display screen, the display screen needs to be pushed into the device from the front, that is, the display screen is pushed from the front to the position between the movable plate 8 and the darkroom 3 until the darkroom 3 can completely cover the display screen. At this time, the bottom end of the display screen can contact the top end of the guide wheel 9, completing the loading process of the display screen.

[0042] like Figure 1 and Figure 2 as well as Figure 4 and Figure 5 As shown, the limiting assembly 11 includes four guide blocks 111, which are movably connected to the four main guide rails 6, and the top of the guide blocks 111 is fixedly installed with a first fixed seat 112, and the end of the first fixed seat 112 away from the guide block 111 is movably connected to a support rod 114 through a rotating shaft, and the end of the support rod 114 away from the first fixed seat 112 is movably connected to a second fixed seat 113 through a rotating shaft, and the second fixed seat 113 is installed at a position close to the four corners of the bottom end of the movable plate 8 and is fixedly connected thereto, and a first fixed seat 112 is installed between the front and rear guide blocks 111, and the top of the first fixed seat 112 is fixedly connected with a clamping plate 115, which is located on the left and right sides above the movable plate 8, and the relatively close ends of the two clamping plates 115 are provided with anti-slip grooves.

[0043] Embodiment: When the display screen is completely placed above the movable plate 8, its extension can be controlled by opening the main air cylinder 7, and the movable plate 8 automatically rises with the display screen. At the same time, when the movable plate 8 moves upward, the two support rods 114 at the bottom are deflected, that is, the two support rods 114 are deflected toward the middle, and thrust is applied to the four guide blocks 111. At this time, the left and right guide blocks 111 are relatively close to each other under the guidance of the main rail 6, and the two first fixing seats 112 are relatively close to each other, and finally the two clamping plates 115 are relatively close to each other, and the display screen at the top of the movable plate 8 is limitedly clamped. At the same time, during the clamping process, due to the rise of the movable plate 8, the display screen can be synchronously driven to rise to the inside of the darkroom 3;

[0044] When the display screen is completely inside the darkroom 3 and the power and signal access are completed, the external light of the darkroom 3 can be blocked, and the display screen of the display screen can be photographed by the detection camera 5, and the display comparison is performed through the external display to complete the display screen test process.

[0045] By controlling the lifting and lowering of the movable plate 8 and linking the limit assembly 11, the movable plate 8 can be raised while the limit assembly 11 can automatically complete the limit clamping process of the display screen, and the display screen can be automatically sent to the darkroom 3 at the same time, that is, the display screen can be sent to the test environment while the limit clamping is completed, and there is no need for manual observation and testing, which reduces the test steps, so that the device can quickly test a single display screen and improve the overall test efficiency.

[0046] like Figure 2 and Figure 6 as well as Figure 7 As shown, the plug-in assembly 12 includes a mounting frame 121, and a third fixing seat 122 is fixedly installed on the side of the mounting frame 121 away from the movable plate 8, and the end of the third fixing seat 122 away from the mounting frame 121 is movably connected to a connecting rod 126 through a rotating shaft, and the end of the connecting rod 126 away from the third fixing seat 122 is movably connected to a fourth fixing seat 123 through a rotating shaft, and a clamping block 124 is fixedly installed on the top of the fourth fixing seat 123, and the clamping block 124 is movably clamped with the adjusting guide rail 10, and the fourth fixing seat 123 is displaced forward and backward relative to the adjusting guide rail 10, and a signal plug connector 125 is fixedly connected to the top of the clamping block 124, and the signal plug connector 125 is located directly behind the through slot 4, and the signal plug connector 125 is connected to the external signal line.

[0047] Embodiment: When the display screen is limited and clamped, due to the upward displacement of the movable plate 8, the mounting frame 121 is synchronously driven to move upward. At this time, since the adjustment guide rail 10 cannot move upward and the distance between the adjustment guide rail 10 and the mounting frame 121 becomes smaller, a thrust can be applied to the connecting rod 126. At this time, the connecting rod 126 is deflected toward the direction close to the darkroom 3 and a thrust is applied to the block 124. At this time, the block 124 is displaced toward the direction close to the darkroom 3 and drives the signal connector 125 to move toward the direction close to the through slot 4 until the signal connector 125 is completely plugged into the signal connection end of the display screen. Then, the display screen can be tested.

[0048] By utilizing the limit clamping of the display screen and the process of automatically rising to the darkroom 3, the automatic forward movement of the signal connector 125 is achieved through the automatic upward movement of the display screen, that is, the limit clamping of the display screen and the automatic entry into the darkroom 3 are completed while realizing the automatic access to power and signals. The whole process is completed automatically without manual assistance, that is, only the display screen needs to be manually sent into the device to quickly realize automatic clamping and automatic access, thereby further reducing the test steps and improving the test efficiency.

[0049] like Figure 2 and Figure 6 as well as Figure 8 As shown, the pushing assembly 13 includes a fixed frame 131, which is installed on one side of the block 124 close to the movable plate 8 and located at the bottom end of the adjusting guide rail 10. A limiting frame 132 is fixedly installed at the front end of the fixed frame 131. A push rod 135 is movably sleeved inside the limiting frame 132. The push rod 135 moves forward and backward relative to the limiting frame 132. The rear end of the push rod 135 is fixedly connected to the limiting plate 133. The front end of the push rod 135 passes through the front end of the limiting frame 132 and is fixedly connected to an electromagnetic plate 136. The outer side surface of the push rod 135 is movably sleeved with a limiting spring 134. The front and rear ends of the limiting spring 134 are respectively connected to one end of the limiting frame 132 and one end of the limiting plate 133. When the electromagnetic plate 136 and the limiting frame 132 are adsorbed on each other, the limiting spring 134 is in an extreme tension state.

[0050] Embodiment: In the initial state and during the entire test process, the power supply of the electromagnetic plate 136 is always kept on, that is, the electromagnetic plate 136 and the limiting frame 132 are in a mutually adsorbed state;

[0051] When the display screen of the display screen is automatically tested by shooting with the detection camera 5, the main cylinder 7 can be controlled to shorten, and the movable plate 8 will drop accordingly, and the mounting frame 121 will be driven to drop. At this time, the signal connector 125 automatically moves backward to release the access to the signal and power supply. At the same time, the limit assembly 11 automatically resets, that is, the two clamping plates 115 automatically move away, that is, the limit clamping at both ends of the display screen is released. When the movable plate 8 returns to its initial height, one end of the display screen corresponds to the pushing assembly 13, and the power supply of the electromagnetic plate 136 can be turned off. At this time, the limit spring 134 automatically resets, and the electromagnetic plate 136 and the push rod 135 automatically move forward to apply a force to the rear end of the display screen. At this time, the display screen is subjected to the thrust and cooperates with the rolling of the guide wheel 9, so that it can be automatically pushed out from the top of the movable plate 8 to complete the discharging process.

[0052] By utilizing the automatic clamping and automatic signal access process of the device, the forward displacement of the signal connector 125 can be achieved while the automatic forward movement of the push assembly 13 can also be achieved. The rear end of the display screen is automatically limited by the forward displacement of the push assembly 13 to complete the deviation correction of the display screen. At the same time, the reset process of the device can be utilized to make the push assembly 13 drop to the initial height and correspond to the display screen, and the automatic reset of the push assembly 13 is utilized to automatically push out the display screen, completing the automatic discharging process of the display screen, avoiding the complicated discharging steps of traditional devices and improving the discharging efficiency.

[0053] Working principle and usage process:

[0054] When testing the performance of the display screen, the entire device is in an initial state, that is, there is a certain gap between the bottom end of the darkroom 3 and the movable plate 8, the limit assembly 11 is in a loose state, and the movable plate 8 is at the lowest point, and the distances between the plug assembly 12 and the push assembly 13 and the through slot 4 are also at the maximum value;

[0055] When testing the display screen, the display screen needs to be pushed into the device from the front, that is, the display screen is pushed from the front to the position between the movable plate 8 and the darkroom 3 until the darkroom 3 can completely cover the display screen. At this time, the bottom end of the display screen can contact the top end of the guide wheel 9, and the loading process of the display screen is completed;

[0056] When the display screen is completely placed above the movable plate 8, the extension of the main cylinder 7 can be controlled by opening the main cylinder 7, and the movable plate 8 automatically rises with the display screen. At the same time, when the movable plate 8 moves upward, the two support rods 114 at the bottom are deflected, that is, the two support rods 114 are deflected toward the middle, and thrust is applied to the four guide blocks 111. At this time, the left and right guide blocks 111 are relatively close to each other under the guidance of the main rail 6, and the two first fixing seats 112 are relatively close to each other, and finally the two clamping plates 115 are relatively close to each other, and the display screen at the top of the movable plate 8 is limitedly clamped. At the same time, during the clamping process, due to the rise of the movable plate 8, the display screen can be synchronously driven to rise to the inside of the darkroom 3;

[0057] When the display screen is completely inside the darkroom 3 and the power supply and signal are connected, the external light of the darkroom 3 can be blocked, and the display screen of the display screen can be photographed by the detection camera 5, and the display comparison is performed through the external display to complete the test process of the display screen;

[0058] When the display screen is limited and clamped, due to the upward displacement of the movable plate 8, the mounting frame 121 is synchronously driven to move upward. At this time, since the adjustment rail 10 cannot move upward, and the distance between the adjustment rail 10 and the mounting frame 121 becomes smaller, a thrust can be applied to the connecting rod 126, and the connecting rod 126 is deflected toward the direction close to the darkroom 3, and a thrust is applied to the block 124, and the block 124 is displaced toward the direction close to the darkroom 3, and the signal plug connector 125 is driven to move toward the direction close to the through slot 4, until the signal plug connector 125 is completely plugged into the signal connection end of the display screen, and the display screen can be tested;

[0059] When the display screen of the display screen is automatically tested by shooting with the detection camera 5, the main cylinder 7 can be controlled to shorten, and the movable plate 8 will drop accordingly, and the mounting frame 121 will be driven to drop. At this time, the signal connector 125 automatically moves backward to release the access to the signal and power supply. At the same time, the limit assembly 11 automatically resets, that is, the two clamping plates 115 automatically move away, that is, the limit clamping at both ends of the display screen is released. When the movable plate 8 returns to its initial height, one end of the display screen corresponds to the pushing assembly 13, and the power supply of the electromagnetic plate 136 can be turned off. At this time, the limit spring 134 automatically resets, and the electromagnetic plate 136 and the push rod 135 automatically move forward to apply a force to the rear end of the display screen. At this time, the display screen is subjected to the thrust and cooperates with the rolling of the guide wheel 9, so that it can be automatically pushed out from the top of the movable plate 8 to complete the discharging process.

[0060] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A screen performance testing device for display screen production, comprising a base (1), characterized in that: A frame (2) is fixedly mounted on the top of the base (1), a darkroom (3) is fixedly mounted on the top of the frame (2), a through slot (4) is provided at the rear end of the darkroom (3), a detection camera (5) is fixedly mounted in the middle of the top of the darkroom (3), a shooting end of the detection camera (5) passes through the top of the darkroom (3) and is located inside the darkroom (3), a movable plate (8) is provided between the darkroom (3) and the base (1), a main cylinder (7) is fixedly mounted in the middle of the top of the base (1), the output end of the main cylinder (7) is connected to the middle of the bottom end of the movable plate (8), and the top of the base (1) is provided with a plurality of movable plates (8) at positions near the four corners. A main guide rail (6) is provided, and a limit assembly (11) is provided between the main guide rail (6) and the movable plate (8). Guide wheels (9) are movably installed at positions near the four corners of the top of the movable plate (8), and the guide wheels (9) rotate relative to the movable plate (8). An adjustment guide rail (10) located directly below the through slot (4) is fixedly installed at the bottom end of the detection camera (5). A plug-in assembly (12) is movably connected inside the adjustment guide rail (10), and one end of the plug-in assembly (12) is fixedly connected to the rear side of the bottom end of the movable plate (8). A pusher assembly (13) is fixedly installed at one end of the plug-in assembly (12) close to the movable plate (8).

2. A screen performance testing device for display screen production according to claim 1, characterized in that: The limiting assembly (11) comprises four guide blocks (111), the guide blocks (111) are movably connected to the four main guide rails (6), the top ends of the guide blocks (111) are fixedly mounted with first fixing seats (112), and the ends of the first fixing seats (112) away from the guide blocks (111) are movably connected to support rods (114) via rotating shafts.

3. A screen performance testing device for display screen production according to claim 2, characterized in that: One end of the support rod (114) away from the first fixed seat (112) is movably connected to the second fixed seat (113) via a rotating shaft, and the second fixed seat (113) is fixedly connected to the bottom end of the movable plate (8) near the four corners.

4. The screen performance testing device for display screen production according to claim 3, characterized in that: A first fixed seat (112) is installed between the front and rear guide blocks (111), and the top of the first fixed seat (112) is fixedly connected with a clamping plate (115). The clamping plates (115) are located on the left and right sides above the movable plate (8), and the relatively close ends of the two clamping plates (115) are provided with anti-slip grooves.

5. The screen performance testing device for display screen production according to claim 1, characterized in that: The plug-in assembly (12) comprises a mounting frame (121), a third fixing seat (122) being fixedly mounted on a side of the mounting frame (121) away from the movable plate (8), one end of the third fixing seat (122) away from the mounting frame (121) being movably connected to a connecting rod (126) via a rotating shaft, and one end of the connecting rod (126) away from the third fixing seat (122) being movably connected to a fourth fixing seat (123) via a rotating shaft.

6. The screen performance testing device for display screen production according to claim 5, characterized in that: A clamping block (124) is fixedly mounted on the top of each of the fourth fixing seats (123); the clamping block (124) is movably clamped with the adjusting guide rail (10); the fourth fixing seat (123) is displaced forward and backward relative to the adjusting guide rail (10); a signal plug connector (125) is fixedly connected to the top of each of the clamping blocks (124); the signal plug connector (125) is located directly behind the through slot (4); and the signal plug connector (125) is connected to an external signal line.

7. A screen performance testing device for display screen production according to claim 6, characterized in that: The pusher assembly (13) comprises a fixed frame (131), the fixed frame (131) being mounted on a side of the block (124) close to the movable plate (8) and located at the bottom end of the adjusting guide rail (10), a limiting frame (132) being fixedly mounted at the front end of the fixed frame (131), a push rod (135) being movably sleeved inside the limiting frame (132), and the push rod (135) being movable forward and backward relative to the limiting frame (132).

8. The screen performance testing device for display screen production according to claim 7, characterized in that: The rear end of the push rod (135) is fixedly connected to the limit plate (133), the front end of the push rod (135) passes through the front end of the limit frame (132) and is fixedly connected to the electromagnetic plate (136), the outer side surface of the push rod (135) is movably sleeved with a limit spring (134), and the front and rear ends of the limit spring (134) are respectively connected to one end of the limit frame (132) and one end of the limit plate (133).

9. The screen performance testing device for display screen production according to claim 8, characterized in that: When the electromagnetic plate (136) and the limiting frame (132) are mutually attracted, the limiting spring (134) is in an extreme tension state.

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