Defect detection device for QD diffusion plate

Abstract

The invention relates to the technical field of diffusion plate defect detection, in particular to a defect detection device for a QD diffusion plate. The defect detection device for the QD diffusion plate comprises an outer frame, a feeding 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 surface cleaning assembly, and the outer frame serves as a main detection cavity of the diffusion plate; the feeding 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. According to the device, the top surface, the bottom surface, the front side surface, the rear side surface, the left side surface and the right side surface of the diffusion plate are comprehensively scanned and detected through the upper array camera, the lower array camera and the side array camera, so that the comprehensiveness and the accuracy of defect detection are ensured; the whole detection process can provide high stability.

Description

Technical Field

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

[0002] QD diffuser plates are materials used in the production of liquid crystal displays and other products. In modern manufacturing, quality control is one of the key factors to ensure product performance and market competitiveness. Especially in the field of diffuser plate manufacturing, the surface quality and structural integrity of the product directly affect its optical performance, durability and end-user satisfaction. Therefore, efficient and comprehensive defect detection methods are essential to ensure product quality.

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

[0004] Although some newer systems attempt to achieve double-sided inspection, they usually require flipping the diffuser twice to scan both sides. This method not only increases process complexity, prolongs inspection time, and reduces production efficiency, but the flipping operation may cause additional mechanical wear and error, further affecting the consistency and reliability of the inspection results. In addition, it ignores possible defects on the side. Since the diffuser may be exposed to the external environment in all directions during actual use, defects on the side will also affect its performance and service life. Therefore, only inspecting the top and bottom surfaces cannot fully reflect the quality status 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 diffusion plate, comprising an outer frame, a feeding 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 surface cleaning assembly, the outer frame serving as the main detection chamber of the diffusion plate, the feeding assembly being located at the right side of the outer frame, the discharging assembly being located at the left side of the outer frame, a portion of the feeding assembly corresponding to the discharging assembly being inserted into the outer frame, a plurality of push plates being evenly spaced and connected to the surface of the belt on the feeding assembly, a first mounting plate being installed between the brackets of the feeding assembly and the discharging assembly, a lower array camera being installed on the top of the first mounting plate 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, an upper array camera is installed on the bottom of the second mounting plate, and 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, and a side array camera is installed on the upper end of the rotating shaft. The side array camera is electrically connected to the controller, and double-sided small cameras are distributed on the side array cameras to support 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 scheme, the clamping assembly includes a fixed frame, a cylinder, a sliding frame and a clamping roller. The fixed frame is symmetrically installed on the inner upper 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 scheme, the bottom surface 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 scheme, 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 sleeved 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 it is located on the right side of the upper array camera.

[0010] As a further preferred scheme, it also includes a fixed plate, a movable frame, a correction rod, a slide groove, a tension spring and a reset spring. A fixed plate is installed at a position on the right side of the second mounting plate in the outer frame, and the movable frame is slidably connected to the bottom of the fixed plate. The reset 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 slide groove is symmetrically connected to the right side of the fixed plate. The top surface of the correction rod is arc-shaped, which abuts 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 scheme, it also includes a side frame, a correction roller, an inclined plate, a pushing rod, a sliding rod and a tension spring. The bottom of the fixed plate is symmetrically and slidingly connected to the side frame, and the bottom of the side frame 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 side of the side frame is connected to the inclined plate, and the two side walls of the movable frame are slidably connected to the pushing rod. An elastic member is arranged inside the pushing rod, and the other end of the elastic member is connected to the inside of the movable frame. The pushing rod is in contact with the inclined surface of the inclined plate, and an inclined notch is provided on the left side of the inclined plate, which is aligned with the pushing rod. The top of the side frame is connected to the sliding rod, and the sliding rod is slidably connected to the fixed plate, and a tension spring is connected between the two sliding rods.

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

[0014] The beneficial effects are: 1. The 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 clamping roller is controlled by the cylinder to move up and down, which can effectively support the top of the diffusion plate, ensuring that the diffusion plate will not warp or shift due to lack of support at the bottom during detection and crossing the gap between the loading component and the discharging component, thereby ensuring the stability of the diffusion plate during the entire conveying and detection process.

[0016] 3. By setting the lower cleaning roller and the upper cleaning roller, this device can completely remove the impurities on the surface of the diffusion plate before detection, avoid misjudgment caused by impurities, and ensure the authenticity and reliability of the detection results.

[0017] 4. This device can effectively adjust the center position of the diffusion 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 three-dimensional structural schematic diagram of the feeding assembly, the discharging assembly, the 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 diagram of the planar structure of the second mounting plate, the upper array camera and the lower array camera of the present invention.

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

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

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

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

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

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

[0028] Fig.11 It is a three-dimensional structural schematic diagram of the components such as the moving frame, the correction rod and the slide groove of the present invention.

[0029] Fig.12 It is a three-dimensional structural schematic diagram of components such as the slideway, the tension spring and the return spring of the present invention.

[0030] Fig.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] Fig.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 figure numbers: 1_outer frame, 101_feeding 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_pressure 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 groove, 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 drawings.

[0034] Embodiment: 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 surface cleaning component. The outer frame 1 serves as the main detection chamber of 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 parts of the loading component 101 and the discharging component 102 that are opposite to each other are inserted into the outer frame 1 to form a conveying and output passage for the diffusion plate. The belt surface of the loading assembly 101 is evenly spaced and connected with a plurality of push plates 103. The diffusion plate is transported by the loading assembly 101. The push plate 103 is used to push the diffusion plate to move. A first mounting plate 104 is installed between the brackets of the loading assembly 101 and the discharging 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 discharging assembly 102. When the diffusion plate moves to the left from the loading assembly 101 and crosses the discharging assembly 102, the lower array camera 105 performs bottom surface defect inspection. A second mounting plate 106 is bolted to the right of the upper inner portion of the outer frame 1, and an upper array camera 107 is mounted at 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 diffusion plate enters the outer frame 1, the upper array camera 107 irradiates and scans the top surface of the diffusion 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. The position, size and severity of the problem are detected, and the data are transmitted to the controller 108. The first mounting plate 104 is symmetrically rotatably connected to the right side with a rotating shaft 304. A side array camera 306 is installed on the upper end of the rotating shaft 304. 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 the 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 at the bottom of the diffuser plate to ensure the inspection accuracy.

[0035] like Figure 2 , Figure 5 , Figure 6 and Figure 7As shown, the clamping assembly includes a fixed frame 201, a cylinder 202, a sliding frame 203 and a clamping roller 204. The fixed frame 201 is symmetrically installed on the upper side of the outer frame 1, and 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 clamping roller 204 is rotatably connected between the two symmetrical sliding frames 203. The clamping roller 204 is respectively located above the feeding assembly 101 and the discharging assembly 102, and the diffusion plate is connected to the feeding assembly 101. During the process of moving from the loading component 101 to the discharging 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 discharging 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 supporting 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 with the rotating rod 301, and the right side of the sliding frame 203 on the right side is welded with a supporting rod 302. The support rod 302 is slidably connected with 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 with a gear 305, which meshes with the adjacent rack 303. The lower end of the rotating shaft 304 is connected with a spiral shaft. The rotating shaft 307 and the spiral shaft 307 are both threadedly connected with a connecting frame 308, and a 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 diffusion plate removed from the loading component 101. When the diffusion plate continues to move, the lower cleaning roller 309 cleans the bottom of it to ensure that there is no interference from impurities 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 diffusion 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 to record 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 clamping roller 204, the right cylinder 202 is started, and its telescopic rod is extended to drive the sliding frame 203 and the clamping roller 204 to move downward, and the clamping 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 clamping 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 diffuser plate is clamped and limited by the clamping roller 204 on the left to ensure that it moves smoothly to the discharge assembly On the component 102, after the diffuser plate leaves the scanning area of ​​the side array camera 306, the cylinder 202 on the right side is reset immediately, and the sliding frame 203 and the clamping roller 204 on the right side are driven to move upward and reset through its telescopic rod. Through the cooperation of the rotating rod 301 and the rack 303, the gear 305, the rotating shaft 304, the side array camera 306 and the screw shaft 307 are driven to reverse and reset. The screw shaft 307 drives the connecting frame 308 and the lower cleaning roller 309 to move downward and reset. The side array camera 306 reverses and returns to the initial position. At this time, the diffuser plate moves on the discharge component 102, and the side array camera 306 scans and detects the right side of the diffuser plate through the other side of the camera. All the detection data about the front and back, left and right sides, and upper and lower sides of the diffuser plate are uniformly transmitted to the controller 108. After the detection is completed, the diffuser plate is sent out of the outer frame 1 to prepare for subsequent processing. After the diffuser plate is sent out, the left cylinder 202 is also reset, and all related 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 Figure 8-Figure 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 feeding 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 with each other, 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 diffusion plate. As the diffusion 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 diffusion plate will not be hindered during the cleaning process, thereby ensuring that the top surface of the diffusion 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 diffusion 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 diffusion plate.

[0039] like Figure 2 and Figure 8-Figure 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 position on 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 front and rear sides of the movable frame 502 are connected to the fixed plate 501. The right side of the movable frame 502 is symmetrically slidably connected to the correction rod 503 for correcting the placement position of the diffusion plate. The correction rod 503 and the movable frame 502 are connected to the return spring 506. 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 side to the groove position with the diffuser plate, 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-Figure 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 with each other. When the moving frame 502 drives the pushing rod 604 to move to the left, the pushing rod 604 cooperates with the inclined surface to 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. The inclined notch 605 is aligned with the pushing rod 604 to ensure that the pushing rod 604 can smoothly detach from the inclined plate 603 during the resetting process. A sliding rod 606 is welded on the top of the side frame 601. 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 component 101 conveys 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 and ensure that it is placed in a straight line. If the diffuser plate is tilted, the correction rods 503 on the front and rear sides will resist 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 to move 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 diffusion 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 diffusion 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 diffusion plate to ensure that the diffusion plate is in the center position to achieve the purpose of correction. The diffusion 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 diffusion 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 pushing rod 604 to move to the right. The pushing rod 604 is pushed upward and crosses the inclined notch 605, and the elastic part inside it is deformed. After the pushing 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 welcome the processing of the next diffusion 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, and universal wheels 702 are installed on one side of the bottom of the support plate 701 to facilitate the movement of the entire device. The other side of the bottom of the support plate 701 is connected with support legs 703 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] Although 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 various other embodiments can be devised without departing from the scope of the present invention. Accordingly, the scope of the present invention should be limited only by the appended claims.

Claims

1. A defect detection device for a QD diffusion plate, comprising: 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. The outer frame (1) serves as a main 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 the left side of the outer frame (1); the parts of the loading assembly (101) and the discharging assembly (102) that are opposite to each other are inserted into the outer frame (1); a plurality of push plates (103) are evenly spaced and connected to the belt surface of the loading assembly (101); a first mounting plate (104) is installed between the brackets of the loading assembly (101) and the discharging assembly (102); a lower array camera (105) is installed on the top of the first mounting plate (104); and the lower array camera (105) is installed on the top of the first mounting plate (104). The array camera (105) is located in the gap between the loading assembly (101) and the discharging assembly (102); a second mounting plate (106) is mounted on 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 discharging assembly (102), the upper array camera (107) and the lower array camera (105) are all connected to the The controller (108) is electrically connected, the first mounting plate (104) is symmetrically rotatably connected to 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), and double-sided small cameras are distributed on the side array camera (306), which supports comprehensive inspection of the front and back sides and left and right sides of the diffusion plate. A clamping component is also provided in the outer frame (1), and a bottom surface cleaning component is provided on the clamping component.

2. A defect detection device for a QD diffusion plate according to claim 1, characterized in that: The clamping assembly comprises a fixed frame (201), a cylinder (202), a sliding frame (203) and a clamping 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 clamping roller (204) is rotatably connected between the two symmetrical sliding frames (203); the clamping roller (204) is respectively located above the loading assembly (101) and the discharging assembly (102).

3. A defect detection device for a QD diffusion plate according to claim 2, characterized in that: The bottom surface cleaning component comprises a rotating rod (301), a supporting rod (302), a rack (303), a gear (305), a spiral shaft (307), a connecting frame (308) and a lower cleaning roller (309); the rotating rod (301) is rotatably connected to the sliding frame (203) on the right side; the right side of the sliding frame (203) on the right side is connected to the supporting rod (302); the supporting 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 meshed with the adjacent rack (303); the lower end of the rotating shaft (304) is connected to the spiral shaft (307); the connecting frame (308) is threadedly connected to the spiral shaft (307); and the lower cleaning roller (309) is rotatably connected between the connecting frames (308).

4. A defect detection device for a QD diffusion plate according to claim 3, characterized in that: The invention also comprises a guide rod (401), a lifting frame (402), a buffer spring (403) and an upper cleaning roller (404); the guide rod (401) is symmetrically connected to the right side of the second mounting plate (106); the lifting frame (402) is slidably connected between the two guide rods (401); buffer springs (403) are sleeved on the guide rods (401); the upper and lower ends of the buffer springs (403) are respectively connected to the lifting frame (402) and the second mounting plate (106); the upper cleaning roller (404) is rotatably connected to the lower side of the lifting frame (402); 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).

5. A defect detection device for a QD diffusion plate according to claim 4, characterized in that: The outer frame (1) further comprises 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 a position on the right side of the second mounting plate (106) in the outer frame (1); the movable frame (502) is slidably connected to the bottom of the fixed plate (501); 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 opposite to the fixed plate (501); The sliding connection is provided with a correction rod (503) for correcting the placement position of the diffusion plate, and a tension spring (505) is connected between the correction rod (503) and the inside of the movable frame (502). A slide groove (504) is symmetrically connected to the right side of the fixed plate (501). The top surface of the correction rod (503) is in an arc shape, and it abuts against the right side of the bottom surface of the slide groove (504), so that the tension spring (505) is in a tension state. An oblique groove is opened on the left side of the slide groove (504), and the correction rod (503) cooperates with the groove.

6. A defect detection device for a QD diffusion plate according to claim 5, characterized in that: The lower end of the correction rod (503) is made of silicone material.

7. A defect detection device for a QD diffusion plate according to claim 6, characterized in that: The mobile frame (502) further comprises 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 and slidably connected to the side frame (601); the bottom of the side frame (601) is rotatably connected to a plurality of correction rollers (602) arranged in a straight line 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 mobile frame (502) are slidably connected to the push rods (604); and the sliding rods (606) are slidably connected to the side frame (601). 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 moving frame (502), the push rod (604) contacts and cooperates with the inclined surface of the inclined plate (603), an inclined notch (605) is provided on the left side of the inclined plate (603), the inclined notch (605) is aligned with the push rod (604), the top of the side frame (601) is connected with a sliding rod (606), 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).

8. A defect detection device for a QD diffusion plate according to claim 7, characterized in that: It also includes a support plate (701), a universal wheel (702) and a support foot (703). The support plate (701) is installed at the four bottom corners of the loading assembly (101) bracket and the discharging assembly (102) bracket as well as the four bottom corners of the outer frame (1). The universal wheel (702) is installed at one side of the bottom of the support plate (701), and the support foot (703) is connected to the other side of the bottom of the support plate (701) by bolts.

Images