Phase light detection equipment for sheet

Abstract

The utility model relates to the technical field of visual detection of sheets, in particular to phase light detection equipment for sheets. The device comprises two groups of connected detection device main bodies, the structures of the two groups of detection device main bodies are the same, a transfer manipulator and a turnover mechanism are arranged between the two groups of detection device main bodies, a feeding module and a standby feeding module are arranged on the side of one detection device main body, and the structures of the feeding module and the standby feeding module are the same. A blanking module is arranged on the side of the other detection equipment main body; according to the detection equipment, the phase light imaging module is adopted for detection, detection is comprehensive and accurate, a multi-axis linkage detection mechanism is adopted, rapid photographing of product defects can be achieved, the detection equipment completely adapts to covering of 2D photoelectric film products, and the detection efficiency is greatly improved; multi-station and multi-product simultaneous detection is realized, and the working efficiency is improved; the detection equipment is compact in overall structure, manual operation is not needed in the appearance detection process of photoelectric membranes, the automation degree and the detection precision are improved, and the detection quality of products is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of sheet visual inspection, and particularly relates to a phase light detection device for sheets. Background Art

[0002] Photoelectric film products are increasingly widely used in the field of intelligent electronic displays, and product quality is also becoming more and more important in the manufacturing process. Therefore, the defect detection of the appearance of photoelectric film products is an essential link in the manufacturing process.

[0003] At present, for the detection of photoelectric film sheets, this highly repetitive and intelligent work is still generally completed by the naked eye; however, in the actual detection process, workers simply cannot continuously and stably perform it with the naked eye. Therefore, the stability and reliability of detection are poor, the work efficiency is low, and the subjectivity is relatively strong, making it easy to have false detections and missed detections. In addition, workers are prone to occupational diseases (eye diseases), and the physical harm is relatively large. Additionally, and particularly importantly, due to the transparent and highly reflective characteristics of photoelectric film sheets, it is still impossible to comprehensively, accurately, and meticulously detect various types of defects of the products even with the aid of conventional traditional visual detection means. There are technical problems of incomplete detection and low detection efficiency in existing photoelectric film sheet defect detection devices.

[0004] Therefore, there is an urgent need to develop a high-efficiency detection device for photoelectric film sheets to meet the rapid development of the intelligent display industry and the 3C electronics industry. Content of the Utility Model

[0005] The purpose of the utility model is to provide a reasonably designed phase light detection device for sheets in view of the defects and deficiencies of the prior art, which can solve the above-mentioned defects.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions: It includes two groups of connected detection device main bodies. The structures of the two groups of detection device main bodies are the same, and there is a transfer manipulator and a flipping mechanism between them. A loading module and a spare loading module are arranged on the side of one detection device main body. The structures of the loading module and the spare loading module are the same. A blanking module is arranged on the side of the other detection device main body.

[0007] Preferably, a turntable for driving the sheet to adjust its position is rotatably installed in the detection device main body, and a phase light imaging module is installed on the top of one side inside the detection device main body.

[0008] Preferably, the flipping mechanism is installed on the table board between the two groups of detection device main bodies, and the transfer manipulator is arranged directly above the flipping mechanism.

[0009] Preferably, there are two sets of loading manipulators at the top in the main body of the detection device connected to the loading module and the standby loading module, and one end of the stroke of the two sets of loading manipulators is respectively located at the inner top of the loading module and the standby loading module.

[0010] Preferably, there is a unloading manipulator at the top in the main body of the detection device connected to the unloading module. One end of the stroke of the unloading manipulator is located at the inner top of the unloading module, and a camera hole detection hole module is provided at one side position below the turntable of the main body of the detection device.

[0011] Preferably, a loading bin is arranged in the loading module, and a loading regularizing mechanism is arranged in the loading bin. The loading regularizing mechanism includes two module fixing plates installed in the loading bin. A front regularizing installation bottom plate is vertically slidably installed between the two module fixing plates. A linear servo module for driving the front regularizing installation bottom plate to lift is provided on one of the module fixing plates. A plurality of groups of regularizing components are evenly arranged along a straight line on the front regularizing installation bottom plate. Sheets are all arranged in the regularizing components. The regularizing component includes a rear regularizing plate fixed at the rear side position on the front regularizing installation bottom plate. A front regularizing plate opposite thereto is movably arranged directly in front of the rear regularizing plate. A left regularizing plate is movably arranged at the left side between the front regularizing plate and the rear regularizing plate. A right regularizing plate is movably arranged at the right side between the front regularizing plate and the rear regularizing plate. A servo driving component two is provided at the front end of the bottom of the front regularizing installation bottom plate. A lead screw component is provided at the rear side of the servo driving component two and is drivingly connected thereto. A connecting plate is drivingly installed on the lead screw component. The bottoms of several front regularizing plates are all connected to the connecting plate. A forward and reverse rotation lead screw component is horizontally installed in the front regularizing installation bottom plate. A servo driving component one for driving it to rotate is provided at one side of the forward and reverse rotation lead screw component. The left regularizing plate and the right regularizing plate in several groups of regularizing components are both arranged on the forward and reverse rotation lead screw component, and the moving directions of the left regularizing plate and the right regularizing plate are opposite.

[0012] Preferably, a unloading conveyor belt line body is arranged in the unloading module. The unloading conveyor belt line body is located below the stroke position of the unloading manipulator. An accelerating conveyor belt line body opposite thereto is provided in front of the unloading conveyor belt line body. A sorting conveyor belt line body opposite thereto is provided in front of the accelerating conveyor belt line body. The sorting conveyor belt line body is integrally rotatably installed, and the rotation axis is located at one end opposite to the accelerating conveyor belt line body. A swing cylinder for controlling its angle is provided at the bottom of the sorting conveyor belt line body. A cleaning machine feeding conveyor belt line body is provided at the relative position at the front end of the sorting conveyor belt line body. An NG receiving box is provided directly below the cleaning machine feeding conveyor belt line body. An electrostatic eliminator is provided above the cleaning machine feeding conveyor belt line body. A cleaning machine is provided at the rear side position of the electrostatic eliminator. An OK receiving box is provided at the lower front position of the front end of the cleaning machine feeding conveyor belt line body.

[0013] Preferably, YZ-axis linear modules are provided on both the loading manipulator, the unloading manipulator and the transfer manipulator.

[0014] Preferably, the loading manipulator, the unloading manipulator and the transfer manipulator are all suction cup type manipulators.

[0015] After adopting the above structure, the beneficial effects of the utility model are as follows:

[0016] This detection device uses a phase light imaging module for detection, with comprehensive and accurate detection. It can capture fine defects that could not be seen before on transparent / highly reflective surfaces, present the defects in multiple dimensions, and accurately identify abnormal defects on the product based on a defect detection engine using deep learning. The mechanism design is ingenious, with a multi-axis linkage detection mechanism that can quickly take pictures of product defects, fully adapting to the coverage of 2D optoelectronic film products, greatly improving the detection efficiency; it can achieve simultaneous detection of multiple products at multiple stations, improving work efficiency.

[0017] The overall structure of this detection device is compact and reasonably arranged. During the appearance detection process of optoelectronic film products, no manual operation is required, improving the degree of automation and detection accuracy, and ensuring the detection quality of products.

[0018] This detection device uses suction cups, which can ensure the stability of adsorption without causing secondary pollution and prevent damage.

[0019] This detection device adopts a turntable design, with a simple, compact, reasonable and ingenious overall structure, convenient maintenance, high cleanliness, smaller space occupation, fast configuration switching, convenient use, strong versatility, strong expandability of the device, having a loading and unloading module for fully automated operation, facilitating connection with upstream and downstream devices, and the manual loading operation does not stop the machine, greatly improving the equipment utilization rate.

[0020] This detection device sorts out OK and NG products after product detection, and has a cleaning function for OK products, quickly realizing the final inspection before shipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is the overall structural layout diagram of the device of the utility model;

[0022] Figure 2 is the external structural schematic diagram of the utility model;

[0023] Figure 3 is the internal structural schematic diagram of the utility model after removing the frame;

[0024] Figure 4 is the installation schematic diagram of the sorting conveyor line body in the utility model;

[0025] Figure 5 is the side structural schematic diagram of the loading and rectifying mechanism in the utility model;

[0026] Figure 6 is the front view of the loading and rectifying mechanism in the utility model.

[0027] Description of Reference Numerals

[0028] 1. Loading module; 1-1. Loading and aligning mechanism; 1-1-1. Module fixing plate; 1-1-2. Linear servo module; 1-1-3. Servo drive component 1; 1-1-4. Forward and reverse rotating lead screw component; 1-1-5. Left aligning plate; 1-1-6. Right aligning plate; 1-1-7. Front aligning plate; 1-1-8. Rear aligning plate; 1-1-9. Front aligning installation base plate; 1-1-10. Servo drive component 2; 1-1-11. Lead screw component; 2. Detection equipment main body; 2-1. Loading manipulator; 2-2. Phase light imaging module; 2-3. Turntable; 2-4. Transfer manipulator; 2-5. Flipping mechanism; 2-6. Camera hole detection hole module; 2-7. Unloading manipulator; 3. Unloading module; 3-1. Unloading conveyor line body; 3-2. Accelerating conveyor line body; 3-3. Sorting conveyor line body; 3-4. Swing cylinder; 3-5. NG receiving box; 3-6. Cleaning machine feeding conveyor line body; 3-7. Static eliminator; 3-8. Cleaning machine; 3-9. OK receiving box; 4. Sheet; 5. Loading bin; 6. Spare loading module. Detailed Implementation Manner

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] Refer to Figures 1-3 As shown, it includes two connected detection equipment main bodies 2. The structures of the two detection equipment main bodies 2 are the same, and there is a transfer manipulator 2-4 and a flipping mechanism 2-5 between them. A loading module 1 and a spare loading module 6 are provided on the side of one detection equipment main body 2. The structures of the loading module 1 and the spare loading module 6 are the same. A unloading module 3 is provided on the side of the other detection equipment main body 2.

[0031] Refer to Figures 1-3 As shown, a turntable 2-3 for driving the sheet 4 to adjust its position is rotatably installed in the detection equipment main body 2. A set of vacuum adsorption holes are respectively opened around the turntable 2-3. The number of each set of vacuum adsorption holes matches the number of sheets 4 grabbed by the loading manipulator 2-1. A vacuum device connected to the vacuum adsorption holes is provided in the detection equipment main body 2, and each side of the vacuum adsorption holes is independently controlled; a phase light imaging module 2-2 is installed on the top of one side inside the detection equipment main body 2.

[0032] Refer toFigures 1-3 As shown, the flipping mechanism 2-5 is installed on the table board between two groups of detection device main bodies 2, and the transfer manipulator 2-4 is arranged directly above the flipping mechanism 2-5;

[0033] In the detection device main body 2 connected to the feeding module 1 and the spare feeding module 6, two feeding manipulators 2-1 are provided at the top. One end of the stroke of the two feeding manipulators 2-1 is respectively located at the inner top of the feeding module 1 and the spare feeding module 6.

[0034] As an optimized solution of the present invention, the feeding manipulator 2-1 can quickly obtain the sheet 4 from the feeding module 1 and the spare feeding module 6 and send it into the detection device main body 2 for detection. After one detection device main body 2 finishes detecting the front side, the sheet 4 can be placed on the flipping mechanism 2-5 through the transfer manipulator 2-4. After the sheet 4 is turned over, it is placed in another detection device main body 2 for detecting the back side of the sheet 4.

[0035] See Figures 1-3 As shown, in the detection device main body 2 connected to the discharging module 3, a discharging manipulator 2-7 is provided at the top. One end of the stroke of the discharging manipulator 2-7 is located at the inner top of the discharging module 3, and a camera hole detection hole module 2-6 is provided at one side below the turntable 2-3 of the detection device main body 2.

[0036] As an optimized solution of the present invention, the discharging manipulator 2-7 is provided to discharge the sheet 4 into the discharging module 3 after the detection is completed. At the same time, the camera hole detection hole module 2-6 can detect whether there is a sheet 4 at each hole position to prevent the sheet 4 from slipping or missing during the detection process.

[0037] See Figures 1-6As shown in the figure, a loading bin 5 is arranged inside the loading module 1. An alignment mechanism 1-1 and a material shortage alarm device are arranged inside the loading bin 5. The alignment mechanism 1-1 includes two module fixing plates 1-1-1 installed inside the loading bin 5. A front alignment installation base plate 1-1-9 is vertically and slidably installed between the two module fixing plates 1-1-1. A linear servo module 1-1-2 for driving the front alignment installation base plate 1-1-9 to lift is arranged on one of the module fixing plates 1-1-1. A plurality of groups of alignment components are evenly arranged along a straight line on the front alignment installation base plate 1-1-9. The sheets 4 are all arranged inside the alignment components. The alignment component includes a rear alignment plate 1-1-8 fixed at the rear side position on the front alignment installation base plate 1-1-9. A front alignment plate 1-1-7 opposite thereto is movably arranged directly in front of the rear alignment plate 1-1-8. A left alignment plate 1-1-5 is movably arranged at the left side between the front alignment plate 1-1-7 and the rear alignment plate 1-1-8. A right alignment plate 1-1-6 is movably arranged at the right side between the front alignment plate 1-1-7 and the rear alignment plate 1-1-8. A servo drive component two 1-1-10 is arranged at the front end of the bottom of the front alignment installation base plate 1-1-9. A lead screw component 1-1-11 is arranged at the rear side of the servo drive component two 1-1-10 and is in transmission connection therewith. A connecting plate is drivingly installed on the lead screw component 1-1-11. The bottoms of several front alignment plates 1-1-7 are all connected to the connecting plate. A forward and reverse rotation lead screw component 1-1-4 is horizontally installed inside the front alignment installation base plate 1-1-9. A servo drive component one 1-1-3 for driving it to rotate is arranged at one side of the forward and reverse rotation lead screw component 1-1-4. The left alignment plates 1-1-5 and the right alignment plates 1-1-6 in a plurality of groups of alignment components are all arranged on the forward and reverse rotation lead screw component 1-1-4, and the moving directions of the left alignment plates 1-1-5 and the right alignment plates 1-1-6 are opposite.

[0038] As an optimized solution of the present utility model, the linear servo module 1-1-2 is arranged to drive the front alignment installation base plate 1-1-9 to lift, thereby driving the sheets 4 above to lift and adjust the position. The servo drive component one 1-1-3 can drive each group of left alignment plates 1-1-5 and right alignment plates 1-1-6 to move towards each other to clamp the sheets 4 therein, realizing alignment in the left and right directions. The servo drive component two 1-1-10 can drive the front alignment plate 1-1-7 to move backward through the lead screw component 1-1-11, thereby pushing the sheets 4 backward, and cooperating with the rear alignment plate 1-1-8 to align the sheets 4 in the front and rear directions, ensuring the accurate position of the sheets 4.

[0039] See Figures 1-4As shown in the figure, a blanking conveyor belt line body 3-1 is provided inside the blanking module 3. The blanking conveyor belt line body 3-1 is located below the stroke position of the blanking manipulator 2-7. In front of the blanking conveyor belt line body 3-1, there is an accelerating conveyor belt line body 3-2 opposite to it. In front of the accelerating conveyor belt line body 3-2, there is a sorting conveyor belt line body 3-3 opposite to it. The sorting conveyor belt line body 3-3 is integrally rotatably installed, and the rotation axis is located at one end opposite to the accelerating conveyor belt line body 3-2. At the bottom of the sorting conveyor belt line body 3-3, there is a swing cylinder 3-4 for controlling its angle. Opposite to the front end of the sorting conveyor belt line body 3-3, there is a cleaning machine feeding conveyor belt line body 3-6. Right below the cleaning machine feeding conveyor belt line body 3-6, there is an NG receiving box 3-5. Above the cleaning machine feeding conveyor belt line body 3-6, there is an electrostatic eliminator 3-7. At the rear side position of the electrostatic eliminator 3-7, there is a cleaning machine 3-8. Below the front end of the cleaning machine feeding conveyor belt line body 3-6, there is an OK receiving box 3-9.

[0040] As an optimized solution of the present utility model, the blanking conveyor belt line body 3-1 is set to convey the sheet material 4 and send it onto the accelerating conveyor belt line body 3-2. On the accelerating conveyor belt line body 3-2, the sheet material 4 is accelerated, so that the distance between two adjacent sheet materials 4 is enlarged. The swing cylinder 3-4 acts according to the detection result of each sheet material 4. When the sheet material 4 above the sorting conveyor belt line body 3-3 is unqualified in quality, that is, an NG product, the swing cylinder 3-4 contracts, driving the sorting conveyor belt line body 3-3 to rotate downward, so that the NG product is conveyed into the NG receiving box 3-5; when the sheet material 4 is a qualified product, that is, an OK product, the swing cylinder 3-4 extends, making the sorting conveyor belt line body 3-3 align with the cleaning machine feeding conveyor belt line body 3-6, so that the OK product moves onto the cleaning machine feeding conveyor belt line body 3-6, is de-electrified by the electrostatic eliminator 3-7, and then is cleaned in the cleaning machine 3-8, and then falls into the OK receiving box 3-9 for collection.

[0041] See Figures 1-4 As shown in the figure, YZ-axis linear modules are provided on the loading manipulator 2-1, the blanking manipulator 2-7, and the transfer manipulator 2-4. The loading manipulator 2-1, the blanking manipulator 2-7, and the transfer manipulator 2-4 are all suction cup type manipulators, and two suction cups are used to suck above each sheet material 4.

[0042] As an optimized solution of the present utility model, the YZ-axis linear module is used to make the manipulator can lift and rotate, with a wide range of use angles. At the same time, the traceless suction cup type adsorption method is adopted, which can prevent damage and pollution to the sheet material 4.

[0043] The usage process of the present utility model:

[0044] First, as Figure 1As shown in the figure, in the device, Station A (loading station), Station B (spare loading station), Station C (TOP inspection station), Station D (flipping and handover station), Station E (BOT inspection station), Station F (camera hole inspection station), Station G (unloading station), and Station H (sorting station) are respectively defined;

[0045] Before the device operates, the sheet 4 to be inspected is placed in the loading bin 5, and the loading rectifying mechanism 1-1 is started to rectify the sheet 4. Then the device can be started. One loading manipulator 2-1 grabs a group of sheets 4 and places them on Station A on the turntable 2-3. Then the vacuum device is started, and the vacuum suction holes on Station A suck and hold the sheet 4. Then the turntable 2-3 rotates, causing the sheet 4 to rotate to Station C. At this time, the phase light imaging module 2-2 is started to perform AOI inspection on the top surface of the sheet 4. Then the turntable 2-3 rotates, sending the sheet 4 to Station D. After flipping, it is placed on the rear turntable 2-3 and adsorbed and fixed. At this time, the back of the sheet 4 is upward. The rear turntable 2-3 rotates, moving the sheet 4 to Station E to perform AOI inspection on the back of the sheet 4. Then the rear turntable 2-3 rotates, causing the sheet 4 to reach Station F. The camera hole inspection module 2-6 inspects whether the sheet 4 is in place correctly. Then the rear turntable 2-3 continues to rotate until it reaches below the unloading manipulator 2-7. The unloading manipulator 2-7 sucks the sheet 4 and sends it into the unloading module 3. The device sends the NG products into the NG collection box 3-5 and the OK products into the OK collection box 3-9 according to the AOI inspection results of each sheet 4, completing the inspection;

[0046] After all the inspections of the sheet 4 in the loading module 1 are completed, when the material shortage alarm device detects a material shortage, it issues an alarm. At the same time, the device switches to obtaining the sheet 4 from the spare loading module 6 for inspection. The loading manipulator 2-1 sucks the sheet 4 and places it on Station B, and then the inspection of the sheet 4 is carried out. After the staff discovers the alarm, they fill the loading module 1 with materials. After all the inspections of the sheet 4 in the spare loading module 6 are completed, it switches to obtaining the sheet 4 from the loading module 1, and so on in a cycle to achieve non-stop loading.

[0047] It should be understood that the above specific embodiments of the present invention are only used for exemplary illustration or explanation of the principle of the present invention, and do not constitute a limitation to the present invention. Therefore, any modifications, equivalent replacements, improvements, etc. made without departing from the spirit and scope of the present invention shall be included within the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modifications that fall within the scope and boundary of the appended claims, or equivalent forms of such scope and boundary.

Claims

1. A phase light detection device for a sheet, characterized in that: It includes two sets of connected detection device bodies (2). The structures of the two sets of detection device bodies (2) are the same, and there are a transfer manipulator (2-4) and a flipping mechanism (2-5) between them. A feeding module (1) and a spare feeding module (6) are provided on the side of one of the detection device bodies (2). The feeding module (1) and the spare feeding module (6) have the same structure. A discharging module (3) is provided on the side of the other detection device body (2).

2. The phase light detection device for a sheet according to claim 1, characterized in that: A turntable (2-3) for driving the sheet (4) to adjust its position is rotatably installed in the detection device body (2), and a phase light imaging module (2-2) is installed on the top of one side inside the detection device body (2).

3. The phase light detection device for a sheet according to claim 2, characterized in that: The flipping mechanism (2-5) is installed on the table board between the two sets of detection device bodies (2), and the transfer manipulator (2-4) is arranged directly above the flipping mechanism (2-5).

4. The phase light detection device for a sheet according to claim 3, characterized in that: In the detection device body (2) connected to the feeding module (1) and the spare feeding module (6), two feeding manipulators (2-1) are provided at the top. One ends of the strokes of the two feeding manipulators (2-1) are respectively located at the inner tops of the feeding module (1) and the spare feeding module (6).

5. The phase light detection device for a sheet according to claim 4, characterized in that: A discharging manipulator (2-7) is provided at the top of the detection device body (2). One end of the stroke of the discharging manipulator (2-7) is located at the inner top of the discharging module (3), and a camera hole detection hole module (2-6) is provided at one side below the turntable (2-3) of this detection device body (2).

6. The phase light detection device for a sheet according to claim 5, characterized in that: A feeding bin (5) is arranged inside the feeding module (1). A feeding regularization mechanism (1-1) is arranged inside the feeding bin (5). The feeding regularization mechanism (1-1) includes two module fixing plates (1-1-1) installed inside the feeding bin (5). A front regularization installation bottom plate (1-1-9) is vertically slidably installed between the two module fixing plates (1-1-1). A linear servo module (1-1-2) for driving the front regularization installation bottom plate (1-1-9) to lift is provided on one of the module fixing plates (1-1-1). A plurality of groups of regularization components are evenly arranged along a straight line on the front regularization installation bottom plate (1-1-9). The sheets (4) are all arranged inside the regularization components. The regularization component includes a rear regularization plate (1-1-8) fixed at the rear side position on the front regularization installation bottom plate (1-1-9). A front regularization plate (1-1-7) opposite thereto is movably arranged directly in front of the rear regularization plate (1-1-8). A left regularization plate (1-1-5) is movably arranged at the left side between the front regularization plate (1-1-7) and the rear regularization plate (1-1-8). A right regularization plate (1-1-6) is movably arranged at the right side between the front regularization plate (1-1-7) and the rear regularization plate (1-1-8). A servo drive component two (1-1-10) is provided at the front end of the bottom of the front regularization installation bottom plate (1-1-9). A lead screw component (1-1-11) is provided at the rear side of the servo drive component two (1-1-10) and is in transmission connection therewith. A connecting plate is drivingly installed on the lead screw component (1-1-11). The bottoms of several front regularization plates (1-1-7) are all connected to the connecting plate; A positive and negative rotation screw rod assembly (1-1-4) is horizontally installed in the front regular installation base plate (1-1-9). One side of the positive and negative rotation screw rod assembly (1-1-4) is provided with a servo drive assembly one (1-1-3) for driving its rotation. The left regular plate (1-1-5) and the right regular plate (1-1-6) in the array of regular components are both arranged on the positive and negative rotation screw rod assembly (1-1-4), and the moving directions of the left regular plate (1-1-5) and the right regular plate (1-1-6) are opposite.

7. The phase light detection device for a sheet according to claim 6, characterized in that: A blanking conveyor belt line body (3-1) is arranged in the blanking module (3). The blanking conveyor belt line body (3-1) is located below the stroke position of the blanking manipulator (2-7). In front of the blanking conveyor belt line body (3-1), there is an acceleration conveyor belt line body (3-2) opposite to it. In front of the acceleration conveyor belt line body (3-2), there is a sorting conveyor belt line body (3-3) opposite to it. The sorting conveyor belt line body (3-3) is integrally rotatably installed, and the rotation axis is located at one end opposite to the acceleration conveyor belt line body (3-2). A swing cylinder (3-4) for controlling its angle is arranged at the bottom of the sorting conveyor belt line body (3-3). A cleaning machine feeding conveyor belt line body (3-6) is arranged opposite to the front end of the sorting conveyor belt line body (3-3). An NG receiving box (3-5) is arranged directly below the cleaning machine feeding conveyor belt line body (3-6). An electrostatic eliminator (3-7) is arranged above the cleaning machine feeding conveyor belt line body (3-6). A cleaning machine (3-8) is arranged at the rear side position of the electrostatic eliminator (3-7). An OK receiving box (3-9) is arranged below the front end of the cleaning machine feeding conveyor belt line body (3-6).

8. The phase light detection device for a sheet according to claim 7, characterized in that: YZ-axis linear modules are provided on the loading manipulator (2-1), the unloading manipulator (2-7), and the transfer manipulator (2-4).

9. The phase light detection device for a sheet according to claim 8, characterized in that: The loading manipulator (2-1), the unloading manipulator (2-7), and the transfer manipulator (2-4) are all suction cup type manipulators.

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