A defect detection device for QD diffusion plate

Abstract

The present invention relates to the technical field of defect detection of diffusion plates, and in particular to a defect detection device for QD diffusion plates. The present invention provides a defect detection device for QD diffusion plates, comprising an outer frame, a loading assembly, a discharging assembly, a push plate, a first mounting plate, a lower array camera, a second mounting plate, an upper array camera, a controller, a rotating shaft, a side array camera, a pressing assembly, and a bottom cleaning assembly. The outer frame serves as the main detection chamber of the diffusion plate, the loading assembly is located on the right side of the outer frame, and the discharging assembly is located on the left side of the outer frame. This device realizes comprehensive scanning and detection of the top surface, bottom surface, front, back, left, and right sides of the diffusion plate through the upper array camera, the lower array camera, and the side array camera, ensuring the comprehensiveness and accuracy of defect detection, and only the side array camera needs to be rotated horizontally to adjust the angle, so the entire detection process can provide high stability.

Description

Technical Field

[0001] The present invention relates to the technical field of diffuser plate defect detection, and in particular to a defect detection device for a QD diffuser plate. Background Art

[0002] QD diffusers are materials used in the production of liquid crystal displays and other products. In modern manufacturing, quality control is a key factor in ensuring product performance and market competitiveness. In diffuser manufacturing, in particular, the surface quality and structural integrity of the product directly impact its optical performance, durability, and end-user satisfaction. Therefore, efficient and comprehensive defect detection methods are crucial to ensuring product quality.

[0003] However, existing diffuser plate defect inspection devices mostly rely on high-resolution cameras to quickly scan a single surface (usually the top surface) to identify surface defects such as scratches and bubbles. Although this method can meet basic quality control needs to a certain extent, it cannot handle problems on multiple surfaces simultaneously. This results in only providing one-sided information and cannot fully assess the overall quality of the product.

[0004] While some newer systems attempt to achieve double-sided inspection, they typically require flipping the diffuser plate twice to scan both sides separately. This approach not only increases process complexity, increases inspection time, and reduces production efficiency, but the flipping operation can also cause additional mechanical wear and error, further affecting the consistency and reliability of inspection results. Furthermore, it ignores potential defects on the side surfaces. Since diffusers are exposed to the external environment from all sides during actual use, side defects can also affect their performance and service life. Therefore, simply inspecting the top and bottom surfaces does not fully reflect the quality of the product. Summary of the Invention

[0005] In order to overcome the above-mentioned shortcomings, an object of the present invention is to provide a defect detection device for a QD diffusion plate.

[0006] The technical solution of the present invention is: a defect detection device for a QD diffuser plate, comprising an outer frame, a loading assembly, a discharging assembly, a push plate, a first mounting plate, a lower array camera, a second mounting plate, an upper array camera, a controller, a rotating shaft, a side array camera, a pressing assembly and a bottom cleaning assembly. The outer frame serves as a detection chamber for the diffuser plate, the loading assembly is located on the right side of the outer frame, the discharging assembly is located on the left side of the outer frame, the opposite parts of the loading assembly and the discharging assembly are both inserted into the outer frame, a plurality of push plates are evenly spaced and connected to the belt surface of the loading assembly, a first mounting plate is installed between the brackets of the loading assembly and the discharging assembly, and the lower array is installed on the top of the first mounting plate. Camera, the lower array camera is located in the gap between the loading assembly and the discharging assembly, a second mounting plate is installed on the upper right side of the outer frame, the upper array camera is installed on the bottom of the second mounting plate, the upper array camera is located above the loading assembly, the loading assembly, the discharging assembly, the upper array camera and the lower array camera are all electrically connected to the controller, the right side of the first mounting plate is symmetrically rotatably connected with a rotating shaft, the upper end of the rotating shaft is installed with a side array camera, the side array camera is electrically connected to the controller, double-sided small cameras are distributed on the side array camera, which supports comprehensive inspection of the front and back sides and left and right sides of the diffuser plate, a clamping assembly is also provided in the outer frame, and a bottom cleaning assembly is provided on the clamping assembly.

[0007] As a further preferred solution, the clamping assembly includes a fixed frame, a cylinder, a sliding frame and a clamping roller. The fixed frame is symmetrically installed on the upper inner side of the outer frame, and the cylinders are symmetrically installed on the lower side of the fixed frame. The cylinders are electrically connected to the controller, and the sliding frames are connected to the telescopic rods of the cylinders. The clamping rollers are rotatably connected between the two symmetrical sliding frames, and the clamping rollers are respectively located above the loading assembly and the discharging assembly.

[0008] As a further preferred solution, the bottom cleaning assembly includes a rotating rod, a support rod, a rack, a gear, a spiral shaft, a connecting frame and a lower cleaning roller. The sliding frame on the right side is rotatably connected to the rotating rod, the right side of the sliding frame on the right side is connected to the support rod, the support rod is slidably connected to the rack, the lower end of the rotating rod is rotatably connected to the adjacent rack, the upper end of the rotating shaft is connected to the gear, the gear is meshed with the adjacent rack, the lower end of the rotating shaft is connected to the spiral shaft, the spiral shaft is threadedly connected to the connecting frame, and the lower cleaning roller is rotatably connected between the connecting frames.

[0009] As a further preferred solution, it also includes a guide rod, a lifting frame, a buffer spring and an upper cleaning roller. The guide rod is symmetrically connected to the right side of the second mounting plate, and the lifting frame is slidably connected between the two guide rods. Buffer springs are mounted on the guide rods, and the upper and lower ends of the buffer springs are respectively connected to the lifting frame and the second mounting plate. The upper cleaning roller is rotatably connected to the lower side of the lifting frame. The height of the upper cleaning roller is slightly higher than the push plate and is located on the right side of the upper array camera.

[0010] As a further preferred solution, it also includes a fixed plate, a movable frame, a correction rod, a slide groove, a tension spring and a return spring. A fixed plate is installed at a position on the right side of the second mounting plate in the outer frame, and the bottom of the fixed plate is slidably connected to the movable frame. The return spring is connected between the front and rear sides of the movable frame and the fixed plate. A correction rod for correcting the placement position of the diffusion plate is symmetrically slidably connected to the right side of the movable frame, and a tension spring is connected between the correction rod and the inside of the movable frame. The right side of the fixed plate is symmetrically connected with a slide groove, and the top surface of the correction rod is arc-shaped, which presses against the right side of the bottom surface of the slide groove to put the tension spring in a stretched state. An oblique groove is opened on the left side of the slide groove, and the correction rod cooperates with the groove.

[0011] As a further preferred solution, the lower end of the correction rod is made of silicone material.

[0012] As a further preferred solution, it also includes side frames, correction rollers, inclined plates, push rods, sliding rods and tension springs. The bottom of the fixed plate is symmetrically and slidingly connected to the side frames, and the bottom of the side frames is arranged in a straight line and is rotatably connected to multiple correction rollers at intervals for correcting the center position of the diffusion plate. The upper sides of the side frames are connected to inclined plates, and the two side walls of the movable frame are slidably connected to push rods. An elastic part is provided inside the push rod, and the other end of the elastic part is connected to the inside of the movable frame. The push rod contacts and cooperates with the inclined surface of the inclined plate. An inclined notch is provided on the left side of the inclined plate, and the oblique notch is aligned with the push rod. The top of the side frame is connected to the sliding rod, and the sliding rod is slidably connected to the fixed plate. A tension spring is connected between the two sliding rods.

[0013] As a further preferred solution, it also includes a support plate, universal wheels and support feet. Support plates are installed at the four corners of the bottom of the loading component bracket and the discharging component bracket and the four corners of the bottom of the outer frame. Universal wheels are installed on one side of the bottom of the support plate, and support feet are connected to the other side of the bottom of the support plate by bolts.

[0014] The beneficial effects are: 1. This device realizes comprehensive scanning and inspection of the top surface, bottom surface, front, back, left and right sides of the diffuser plate through the upper array camera, the lower array camera and the side array camera, ensuring the comprehensiveness and accuracy of defect detection, and only the side array camera needs to be rotated horizontally to adjust the angle, and the entire inspection process can provide higher stability.

[0015] 2. The pressure roller is controlled by a cylinder to move up and down, which can effectively support the top of the diffuser plate, ensuring that the diffuser plate will not warp or shift in position due to lack of support at the bottom during detection and crossing the gap between the loading assembly and the discharging assembly, thereby ensuring the stability of the diffuser plate during the entire conveying and detection process.

[0016] 3. This device is equipped with lower cleaning rollers and upper cleaning rollers to completely remove impurities on the surface of the diffusion plate before testing, avoiding misjudgment caused by impurities and ensuring the authenticity and reliability of the test results.

[0017] 4. This device can effectively adjust the center position of the diffuser plate and the angle of horizontal placement by setting the correction rod and correction roller, ensuring that it remains centered and parallel during the detection process, thereby improving the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of the feeding assembly, discharging assembly, push plate and other components of the present invention.

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the first mounting plate, the lower array camera and the second mounting plate of the present invention.

[0021] Figure 4 It is a schematic planar structural diagram of the second mounting plate, upper array camera, lower array camera and other components of the present invention.

[0022] Figure 5 It is a schematic diagram of the three-dimensional structure of the fixing frame, the pressing roller and the lower cleaning roller of the present invention.

[0023] Figure 6 It is a schematic diagram of the three-dimensional structure of the cylinder, sliding frame, pressing roller and other components of the present invention.

[0024] Figure 7 It is a schematic diagram of the three-dimensional structure of the rotating rod, supporting rod, rack and other components of the present invention.

[0025] Figure 8 It is a schematic diagram of the three-dimensional structure of the fixing plate, correction rod, upper cleaning roller and other components of the present invention.

[0026] Figure 9 It is a schematic diagram of the three-dimensional structure of the guide rod, lifting frame, buffer spring and other components of the present invention.

[0027] Figure 10 It is a schematic planar structural diagram of the lifting frame, upper cleaning roller, fixed plate and other components of the present invention.

[0028] Figure 11 It is a schematic diagram of the three-dimensional structure of the movable frame, correction rod, slide and other components of the present invention.

[0029] Figure 12 It is a schematic diagram of the three-dimensional structure of the components such as the slide groove, tension spring and return spring of the present invention.

[0030] Figure 13 It is a schematic diagram of the three-dimensional structure of the components such as the correction roller, the inclined plate and the push rod of the present invention.

[0031] Figure 14 It is a schematic diagram of the planar structure of the correction roller, correction rod, push rod and other components of the present invention.

[0032] In the accompanying drawings: 1_outer frame, 101_loading assembly, 102_discharging assembly, 103_push plate, 104_first mounting plate, 105_lower array camera, 106_second mounting plate, 107_upper array camera, 108_controller, 201_fixed frame, 202_cylinder, 203_sliding frame, 204_pressing roller, 301_rotating rod, 302_support rod, 303_rack, 304_rotating shaft, 305_gear, 306_side array camera, 307_screw shaft, 308_ Connecting frame, 309_lower cleaning roller, 401_guide rod, 402_lifting frame, 403_buffer spring, 404_upper cleaning roller, 501_fixed plate, 502_moving frame, 503_correction rod, 504_slide, 505_tension spring, 506_reset spring, 601_side frame, 602_correction roller, 603_inclined plate, 604_push rod, 605_inclined notch, 606_sliding rod, 607_tension spring, 701_support plate, 702_universal wheel, 703_support foot. DETAILED DESCRIPTION

[0033] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

[0034] Example: A defect detection device for a QD diffusion plate, such as Figure 1-Figure 7As shown, it includes an outer frame 1, a loading component 101, a discharging component 102, a push plate 103, a first mounting plate 104, a lower array camera 105, a second mounting plate 106, an upper array camera 107, a controller 108, a rotating shaft 304, a side array camera 306, a pressing component and a bottom cleaning component. The outer frame 1 serves as a detection chamber for the diffusion plate, the loading component 101 is located on the right side of the outer frame 1, and the discharging component 102 is located on the left side of the outer frame 1. The opposite parts of the loading component 101 and the discharging component 102 are both inserted into the outer frame 1 to form a conveying and output channel for the diffusion plate. The belt surface on the loading assembly 101 is evenly spaced with multiple push plates 103 connected. The diffusion plate is transported by the loading assembly 101. The push plates 103 are used to push the diffusion plate to move. A first mounting plate 104 is installed between the loading assembly 101 and the bracket of the discharge assembly 102 by bolts. A lower array camera 105 is installed on the top of the first mounting plate 104. The lower array camera 105 is located in the gap between the loading assembly 101 and the discharge assembly 102. When the diffusion plate moves to the left from the loading assembly 101 and crosses the discharge assembly 102, the lower array camera 105 performs bottom surface defect detection. A second mounting plate 106 is bolted to the right side of the upper inner portion of the outer frame 1. An upper array camera 107 is mounted on the bottom of the second mounting plate 106. The upper array camera 107 is located above the loading assembly 101. The loading assembly 101, the unloading assembly 102, the upper array camera 107, and the lower array camera 105 are all electrically connected to the controller 108. As the diffuser plate enters the outer frame 1, the upper array camera 107 illuminates and scans the top surface of the diffuser plate to identify any possible defective areas. Once a defect is found, the system can automatically generate a detailed report indicating the specific location of the defect. , size and severity, and transmits these data to the controller 108. The first mounting plate 104 is symmetrically rotatably connected to the front and back of the right side with a rotating shaft 304. The upper end of the rotating shaft 304 is installed with a side array camera 306. The side array camera 306 is electrically connected to the controller 108. Double-sided small cameras are distributed on the side array camera 306 to support comprehensive inspection of the front and back sides and left and right sides of the diffuser plate. In order to ensure the stable position of the diffuser plate during the inspection process, a clamping component is also provided in the outer frame 1, and a bottom cleaning component is provided on the clamping component to remove impurities on the bottom of the diffuser plate to ensure inspection accuracy.

[0035] like Figure 2 、 Figure 5 、 Figure 6 and Figure 7As shown, the pressing assembly includes a fixed frame 201, a cylinder 202, a sliding frame 203 and a pressing roller 204. The fixed frame 201 is symmetrically installed on the upper inner side of the outer frame 1. The cylinder 202 is symmetrically installed on the lower side of the fixed frame 201 through bolts. The cylinder 202 is electrically connected to the controller 108. The sliding frame 203 is connected to the telescopic rod of the cylinder 202. The two symmetrical sliding frames 203 are rotatably connected with the pressing roller 204. The pressing roller 204 is respectively located above the feeding assembly 101 and the discharging assembly 102. When the diffusion plate is removed from the feeding assembly 1 During the process of moving 01 to the discharge component 102, the corresponding cylinder 202 is started to control its telescopic rod to extend, driving the sliding frame 203 and the clamping roller 204 thereon to move downward, so that the clamping roller 204 contacts and stabilizes the diffusion plate. When the diffusion plate crosses the gap between the loading component 101 and the discharge component 102, the edge will not warp due to lack of support at the bottom, and the stability of the position of the diffusion plate during the detection process is guaranteed. Since the clamping roller 204 adopts a rotating design, it will not hinder the normal conveying process of the diffusion plate, thereby maintaining the efficient operation of the entire system.

[0036] like Figure 5 、 Figure 6 and Figure 7 As shown, the bottom cleaning assembly includes a rotating rod 301, a support rod 302, a rack 303, a gear 305, a spiral shaft 307, a connecting frame 308 and a lower cleaning roller 309. The sliding frame 203 on the right side is rotatably connected to the rotating rod 301, and the right side of the sliding frame 203 on the right side is welded with a support rod 302. The support rod 302 is slidably connected to the rack 303. The lower end of the rotating rod 301 is rotatably connected to the adjacent rack 303. When the sliding frame 203 moves downward, it drives the rotating rod 301 to move downward, and pushes the rack 303 to move to the left through the rotating rod 301. The upper end of the rotating shaft 304 is connected to the gear 305, which meshes with the adjacent rack 303. The lower end of the rotating shaft 304 is connected to the spiral shaft The rotating shaft 307 and the spiral shaft 307 are both threadedly connected to the connecting frame 308, and the lower cleaning roller 309 is rotatably connected between the connecting frames 308. The rack 303 moves to the left to drive the gear 305 to rotate, thereby driving the rotating shaft 304 and the spiral shaft 307 to rotate. The spiral shaft 307 drives the connecting frame 308 and the lower cleaning roller 309 to move upward until they are close to the bottom surface of the diffuser plate removed from the loading assembly 101. When the diffuser plate continues to move, the lower cleaning roller 309 cleans its bottom to ensure that there is no impurity interference on the bottom surface before detection. The lower cleaning roller 309 is located on the right side of the lower array camera 105 to ensure that the diffuser plate has been thoroughly cleaned before bottom surface defect detection, thereby improving the accuracy and reliability of detection.

[0037] When performing defect detection on the diffuser plate, the diffuser plate is placed on the loading assembly 101, and the operating controller 108 starts the loading assembly 101. The loading assembly 101 cooperates with the belt through the push plate 103 thereon to transport the diffuser plate to the left. When the diffuser plate enters the outer frame 1, the upper array camera 107 located above first irradiates and scans the top surface of the diffuser plate. At the same time, in the initial state, the side array camera 306 is aimed at the left side of the diffuser plate, irradiates and scans it to detect the defective area. Once a defect is found, the system automatically generates a report, recording the location, size and severity of the defect in detail, and transmits the data to the controller 108. As the diffuser plate continues to move and approaches the pinch roller 204, the right cylinder 202 is started, and its telescopic rod extends to drive the sliding frame 203 and the pinch roller 204 to move downward, and the pinch roller 204 is pressed against the top of the diffuser plate to ensure its stable position. During this process, the rotating rod 301 cooperates with the rack 303 to drive the rotating shaft 304, the side array camera 306 and the screw shaft 307 to rotate. The rotation of the screw shaft 307 drives the connecting frame 308 and the lower cleaning roller 309 to move upward, and the bottom surface of the diffuser plate is cleaned by the lower cleaning roller 309 to ensure the accuracy of subsequent inspections. After the side array camera 306 rotates, it is located at the front and rear sides of the diffuser plate, and scans and inspects the front and rear surfaces of the diffuser plate respectively. When the diffuser plate moves further, the lower array camera 105 scans and inspects its bottom surface. The design of the pinching roller 204 effectively prevents the diffuser plate from warping when crossing the gap, ensuring its smooth transportation. When the diffuser plate moves to the discharge assembly 102, the cylinder 202 on the left is started, and the pinching roller 204 on the left is used to press and limit the diffuser plate to ensure that it moves smoothly to the discharge assembly 306 and the bottom of the diffuser are moved to the left and right of the diffuser 102. The diffuser 102 is moved to the right and the bottom of the diffuser 102 is moved to the right and the bottom of the diffuser 102 is moved to the right and the bottom of the diffuser 102 is moved to the left and right of the diffuser 102. The diffuser 102 is moved to the right and the bottom of the diffuser 102 is moved to the right and the bottom of the diffuser 106 is moved to the left and right of the diffuser 102. The diffuser 102 is moved to the right and the bottom of the diffuser 106 is moved to the right and the bottom of the diffuser 102. The diffuser 102 is moved to the left and right of the diffuser 106. The diffuser 102 is moved to the right and the bottom of the diffuser 106 is moved to the left and right of the diffuser 102. The diffuser 102 is moved to the right and the bottom of the diffuser 106 ...6. The diffuser 106 is moved to the right and the bottom of the diffuser 106 After the diffuser plate is sent out, the left cylinder 202 is also reset, and the relevant components are restored to their original state, ready to meet the inspection task of the next diffuser plate, realizing a continuous and efficient inspection process.

[0038] like Figures 8-10As shown, it also includes a guide rod 401, a lifting frame 402, a buffer spring 403 and an upper cleaning roller 404. The guide rod 401 is symmetrically welded to the front and back of the right side of the second mounting plate 106. The lifting frame 402 is slidably connected between the two guide rods 401. The guide rod 401 is sleeved with a buffer spring 403. The upper and lower ends of the buffer spring 403 are respectively connected to the lifting frame 402 and the second mounting plate 106. The lower side of the lifting frame 402 is rotatably connected to the upper cleaning roller 404. The height of the upper cleaning roller 404 is slightly higher than the push plate 103 and is located on the right side of the upper array camera 107. When the diffuser plate moves to the left through the loading assembly 101 and the push plate 103 and enters the outer frame 1, since the height of the diffuser plate is higher than the push plate 103, the diffuser plate will directly contact the upper cleaning roller 404 during the movement. The upper cleaning roller 404 and the lifting frame 402 are in contact, pushing the upper cleaning roller 404 and the lifting frame 402 to move upward, thereby compressing the buffer spring 403. The elastic force provided by the buffer spring 403 applies downward pressure to the upper cleaning roller 404, so that it fits tightly against the top surface of the diffuser plate. As the diffuser plate moves, the upper cleaning roller 404 effectively cleans its top surface. The upper cleaning roller 404 adopts a rotating design to ensure that the normal transportation of the diffuser plate will not be hindered during the cleaning process, ensuring that the top surface of the diffuser plate has been thoroughly cleaned before being detected by the upper array camera 107, thereby improving the accuracy and reliability of the detection. Once the diffuser plate leaves the upper cleaning roller 404, the buffer spring 403 will rebound and reset, so that the lifting frame 402 and the upper cleaning roller 404 return to their initial height, ready for the cleaning of the next diffuser plate.

[0039] like Figure 2 and Figures 8-14 As shown, it also includes a fixed plate 501, a movable frame 502, a correction rod 503, a slide groove 504, a tension spring 505 and a return spring 506. The fixed plate 501 is installed at the right side of the second mounting plate 106 in the outer frame 1 by bolts. The bottom of the fixed plate 501 is slidably connected to the movable frame 502. The return spring 506 is connected between the front and rear sides of the movable frame 502 and the fixed plate 501. The right side of the movable frame 502 is symmetrically slidably connected to the front and rear sides thereof for correcting the placement position of the diffuser plate. The correction rod 503 is connected to the movable frame 502. Tension springs 505 are connected to the inside of the movable frame 502, and a slide groove 504 is symmetrically connected to the front and back of the right side of the fixed plate 501. The top surface of the correction rod 503 is arc-shaped, which presses against the right side of the bottom surface of the slide groove 504, so that the tension spring 505 is in a tensioned state. The lower end of the correction rod 503 is made of silicone material to avoid damage to the diffuser plate. An oblique groove is opened on the left side of the slide groove 504. When the correction rod 503 moves to the left with the diffuser plate to the groove position, the elastic force of the tension spring 505 prompts the correction rod 503 to move upward and insert into the groove.

[0040] like Figure 10-14As shown, it also includes a side frame 601, a correction roller 602, an inclined plate 603, a push rod 604, a sliding rod 606 and a tension spring 607. The bottom of the fixed plate 501 is symmetrically connected to the side frame 601 in a sliding manner. The bottom of the side frame 601 is arranged in a straight line and is rotatably connected to multiple correction rollers 602 at intervals for correcting the center position of the diffusion plate. The upper side of the side frame 601 is connected to the inclined plate 603. The front and rear side walls of the movable frame 502 are slidably connected to the push rod 604. An elastic member is arranged inside the push rod 604. The other end of the elastic member is connected to the inside of the movable frame 502. The push rod 604 is connected to the inclined plate 603. The inclined surfaces are in contact and cooperate. When the movable frame 502 drives the push rod 604 to move to the left, the push rod 604 cooperates with the inclined surface, and can push the inclined plate 603 and the side frame 601 to move outward. An inclined notch 605 is provided on the left side of the inclined plate 603, and the inclined notch 605 is aligned with the push rod 604 to ensure that the push rod 604 can smoothly detach from the inclined plate 603 during the reset process. A sliding rod 606 is welded on the top of the side frame 601, and the sliding rod 606 is slidably connected to the fixed plate 501. A tension spring 607 is connected between the two sliding rods 606 to provide the elastic force required for the side frame 601 to reset after moving outward.

[0041] When the loading assembly 101 transports the diffuser plate into the outer frame 1, the left side wall of the diffuser plate will contact the lower end of the correction rod 503 to correct the position of the diffuser plate to ensure that it is placed in a straight line. If the diffuser plate is tilted, the front and rear correction rods 503 will press against the diffuser plate and automatically push it to a parallel state as the diffuser plate moves. As the push plate 103 continues to push the diffuser plate to the left, the diffuser plate pushes the correction rod 503 and the movable frame 502 to move to the left, compressing the reset spring 506. At the same time, the movable frame 502 synchronously drives the push rod 604 to move to the left. The push rod 604 pushes the inclined plate 603 outward by cooperating with the inclined surface of the inclined plate 603, thereby driving the side frame 601 and the correction roller 602 thereon to move outward, and the sliding rod 606 moves outward accordingly, stretching the tension spring 607.

[0042] The diffuser plate and the correction rod 503 continue to move. When the correction rod 503 moves to align with the groove of the slide slot 504, the tension spring 505 rebounds, driving the correction rod 503 to move upward and get stuck in the groove, so that the correction rod 503 is out of contact with the diffuser plate. At the same time, the push rod 604 passes over the inclined surface of the inclined plate 603, and the tension spring 607 rebounds and resets, driving the sliding rod 606 and the side frame 601 to move inward and reset, thereby driving the inclined plate 603 and the correction roller 602 to move inward. The correction roller 602 contacts the front and back of the diffuser plate to ensure that the diffuser plate is in the center position, achieving the purpose of correction. The diffuser plate continues to be pushed to the left by the push plate 103. After the side frame 601 and the inclined plate 603 move inward, the push rod 604 is aligned with the oblique notch 605 on the inclined plate 603. At this time, due to the disappearance of the thrust of the diffuser plate, the reset spring 506 immediately rebounds and resets, driving the moving frame 502 and the correction rod 503 moves to the right. Since the top surface of the correction rod 503 is in an arc shape, combined with the inclined design of the groove on the slide 504, the correction rod 503 can move downward under the extrusion of the inclined surface of the groove, move along the bottom surface of the slide 504, and restore the stretched state of the tension spring 505. The moving frame 502 moves to the right, driving the push rod 604 to move to the right. The push rod 604 is pushed upward and crosses the inclined notch 605, and the elastic part inside it is deformed. After the push rod 604 returns to its initial position and disengages from the inclined plate 603, it will quickly move downward and reset under the action of the elastic part, and return to the state of contact with the inclined surface of the inclined plate 603, ready to receive the processing of the next diffuser plate.

[0043] like Figure 1 As shown, it also includes a support plate 701, universal wheels 702 and support legs 703. The four bottom corners of the loading component 101 bracket and the discharging component 102 bracket and the four bottom corners of the outer frame 1 are all installed with support plates 701 by bolts. Universal wheels 702 are installed on one side of the bottom of the support plate 701 to facilitate the movement of the entire device. Support legs 703 are connected to the other side of the bottom of the support plate 701 by bolts. When the position of the device needs to be fixed, ensure that all support legs 703 are firmly installed on the support plate 701 by bolts. At this time, the support legs 703 contact the ground, limit the movement of the universal wheels 702, and ensure the stability of the device during use. When the device needs to be moved, first remove the support legs 703, and then the device can be flexibly moved by the universal wheels 702, which is convenient for adjusting its position.

[0044] While the present disclosure has been described with respect to only a limited number of embodiments, those skilled in the art, having benefit of this disclosure, will appreciate that numerous other embodiments can be devised without departing from the scope of the invention. Accordingly, the scope of the present invention should be limited only by the claims appended hereto.

Claims

1. A defect detection device for a QD diffuser plate, characterized in that: The invention comprises an outer frame (1), a loading assembly (101), a discharging assembly (102), a push plate (103), a first mounting plate (104), a lower array camera (105), a second mounting plate (106), an upper array camera (107), a controller (108), a rotating shaft (304), a side array camera (306), a pressing assembly and a bottom surface cleaning assembly, wherein the outer frame (1) serves as a detection chamber of the diffusion plate, the loading assembly (101) is located at a position on the right side of the outer frame (1), the discharging assembly (102) is located at a position on the left side of the outer frame (1), and a portion of the loading assembly (101) opposite to the discharging assembly (102) is provided. The outer frame (1) is inserted into the outer frame, the belt surface of the feeding component (101) is evenly spaced and connected with a plurality of push plates (103), a first mounting plate (104) is installed between the brackets of the feeding component (101) and the discharging component (102), a lower array camera (105) is installed on the top of the first mounting plate (104), and the lower array camera (105) is located in the gap between the feeding component (101) and the discharging component (102), a second mounting plate (106) is installed on the right side of the upper inner portion of the outer frame (1), an upper array camera (107) is installed on the bottom of the second mounting plate (106), and the upper array camera (107) is installed on the bottom of the upper array camera (107). 7) is located above the loading component (101), the loading component (101), the discharging component (102), the upper array camera (107) and the lower array camera (105) are all electrically connected to the controller (108), the first mounting plate (104) is symmetrically rotatably connected to the right side of the rotating shaft (304), and the upper end of the rotating shaft (304) is installed with a side array camera (306), the side array camera (306) is electrically connected to the controller (108), and double-sided small cameras are distributed on the side array camera (306), which supports comprehensive detection of the front and back sides and the left and right sides of the diffusion plate. A pressing component is also provided in the outer frame (1), which presses A bottom surface cleaning component is provided on the tightening component; the tightening component includes a fixed frame (201), a cylinder (202), a sliding frame (203) and a pressing roller (204); the fixed frame (201) is symmetrically installed on the inner upper side of the outer frame (1); the cylinder (202) is symmetrically installed on the lower side of the fixed frame (201); the cylinder (202) is electrically connected to the controller (108); the sliding frame (203) is connected to the telescopic rod of the cylinder (202); the pressing roller (204) is rotatably connected between the two symmetrical sliding frames (203); the pressing roller (204) is respectively located above the feeding component (101) and the discharging component (102); The bottom cleaning assembly includes a rotating rod (301), a support rod (302), a rack (303), a gear (305), a spiral shaft (307), a connecting frame (308) and a lower cleaning roller (309). The sliding frame (203) on the right side is rotatably connected to the rotating rod (301). The right side of the sliding frame (203) on the right side is connected to the support rod (302). The support rod (302) is slidably connected to the rack (303). The lower end of the rotating rod (301) is rotatably connected to the adjacent rack (303). The upper end of the rotating shaft (304) is connected to the gear (305). The gear (305) is connected to the adjacent rack (303). ) are engaged, the lower ends of the rotating shafts (304) are connected to the spiral shafts (307), the spiral shafts (307) are all threadedly connected to the connecting frames (308), and the connecting frames (308) are rotatably connected to the lower cleaning rollers (309); it also includes a guide rod (401), a lifting frame (402), a buffer spring (403) and an upper cleaning roller (404), the right side of the second mounting plate (106) is symmetrically connected to the guide rods (401), the lifting frame (402) is slidably connected between the two guide rods (401), and the guide rods (401) are all sleeved with buffer springs (403), and the upper and lower ends of the buffer springs (403) are respectively connected to the lifting frame (402). The lowering frame (402) is connected to the second mounting plate (106), and the lower side of the lifting frame (402) is rotatably connected to the upper cleaning roller (404), the height of the upper cleaning roller (404) is slightly higher than the push plate (103), and is located on the right side of the upper array camera (107); it also includes a fixed plate (501), a movable frame (502), a correction rod (503), a slide groove (504), a tension spring (505) and a reset spring (506), a fixed plate (501) is installed at a position on the right side of the second mounting plate (106) in the outer frame (1), and the bottom of the fixed plate (501) is slidably connected to the movable frame (502), and the movable frame (503) is moved to the right side of the fixed plate (501). A return spring (506) is connected between the front and rear sides of the frame (502) and the fixed plate (501), and a correction rod (503) for correcting the placement position of the diffusion plate is symmetrically and slidingly connected to the right side of the movable frame (502), and a tension spring (505) is connected between the correction rod (503) and the inside of the movable frame (502). A chute (504) is symmetrically connected to the right side of the fixed plate (501), and the top surface of the correction rod (503) is in an arc shape, which abuts against the right side of the bottom surface of the chute (504), so that the tension spring (505) is in a stretched state. An oblique groove is opened on the left side of the chute (504), and the correction rod (503) cooperates with the groove.

2. A defect detection device for a QD diffusion plate according to claim 1, characterized in that: The lower end of the correction rod (503) is made of silicone material.

3. A defect detection device for a QD diffusion plate according to claim 2, characterized in that: The side frame (601), a correction roller (602), an inclined plate (603), a push rod (604), a sliding rod (606) and a tension spring (607) are also included. The bottom of the fixed plate (501) is symmetrically connected to the side frame (601) in a sliding manner. The bottom of the side frame (601) is arranged in a straight line and is rotatably connected to multiple correction rollers (602) at intervals for correcting the center position of the diffusion plate. The upper side of the side frame (601) is connected to the inclined plate (603). The two side walls of the movable frame (502) are both slidably connected to the push rod ( 604), an elastic member is provided inside the push rod (604), and the other end of the elastic member is connected to the inside of the mobile frame (502), the push rod (604) contacts and cooperates with the inclined surface of the inclined plate (603), and an oblique notch (605) is provided on the left side of the inclined plate (603), and the oblique notch (605) is aligned with the push rod (604), and the top of the side frame (601) is connected to a sliding rod (606), and the sliding rod (606) is slidably connected to the fixed plate (501), and a tension spring (607) is connected between the two sliding rods (606).

4. A defect detection device for a QD diffusion plate according to claim 3, characterized in that: The utility model also includes a support plate (701), a universal wheel (702) and a support leg (703). The four bottom corners of the loading assembly (101) bracket and the discharging assembly (102) bracket and the four bottom corners of the outer frame (1) are all installed with the support plate (701). The universal wheel (702) is installed on one side of the bottom of the support plate (701), and the support leg (703) is connected to the other side of the bottom of the support plate (701) by bolts.

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