Intelligent visual detection device and method for industrial code reading

Abstract

The present invention belongs to the technical field of visual inspection, and specifically is an intelligent visual inspection device and method for industrial code reading, comprising a detection component, a conveying component, a flipping component, an analysis module and a control module; the detection component comprises a frame; a group of machine vision cameras are evenly distributed on the inner side of the frame; the conveying component comprises a machine tool; a tensioning roller and a group of support rollers are rotatably connected inside the machine tool; a conveyor belt is sleeved on the surface of the support roller and the tensioning roller; the flipping component comprises a lever; an electric telescopic rod is hinged between the lower side of the lever and the machine tool; by controlling the extension of the electric telescopic rod, the lever is driven to rotate upward and shift the bottom of the goods, prompting the goods to flip to the other side, so that the lower side of the goods is exposed to the perception range of the machine vision camera after flipping, so as to facilitate the detection and code reading of all surfaces of the goods, avoid the problem of detection blind spots caused by the conveying process, and fully improve the detection efficiency.

Description

Technical Field

[0001] The present invention belongs to the technical field of visual inspection, and in particular to an intelligent visual inspection device and method for industrial code reading. Background Art

[0002] Machine vision refers to the ability of machines to "see" through computers and specially designed algorithms, that is, to obtain information from images or videos and to understand and analyze them. It combines computer vision, image processing, pattern recognition and machine learning technologies to mimic the functions and capabilities of the human visual system and achieve the perception, understanding and application of visual information. In some special environments, mass production inspection, logistics tracking and other usage scenarios, machine vision is often used to replace artificial vision, which can greatly improve production efficiency and production automation.

[0003] A Chinese patent application CN216352338U discloses an automatic barcode reading device for packaging, the technical solution of which is as follows: it includes a support platform and a side plate, the side plate is fixedly arranged on the support platform and is provided with two, and the two side plates are fixedly installed with a top plate at one end away from the support platform; a distance adjustment mechanism, which is installed on the top plate and arranged on the inner side of the top plate, and the power output end of the distance adjustment mechanism can extend to the support platform; a code reading mechanism, which is fixedly connected to the distance adjustment mechanism, and the code reading mechanism can control the distance between the support platform and the code reading mechanism under the drive of the distance adjustment mechanism; a conveyor belt, which is installed on the support platform and is located on the side where the code reading mechanism scans the code, and is used to convey the package from one side of the code reading mechanism to the other side. The automatic barcode reading device for packaging provided by this technology can not only read and scan the package, but also change the angle of code reading, which is convenient for reading barcodes at different positions of the package, and is simple to operate and highly practical.

[0004] However, the above technology often has the following defects: the existing visual inspection device usually uses a conveyor belt to transport goods, and then uses an intelligent industrial camera to inspect or read the code of the goods. However, when the goods are placed on the conveyor belt, the lower side is blocked by the conveyor belt, resulting in the inability of the intelligent industrial camera to fully detect all surfaces of the goods. In addition, if the identification code is located on the lower side when placed on the conveyor belt, it will also affect the code reading work and reduce the work efficiency of visual inspection.

[0005] To this end, the present invention provides an intelligent visual detection device and method for industrial code reading. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve the technical problem is: the intelligent visual detection device for industrial code reading described in the present invention comprises a detection component, a conveying component, a flipping component, an analysis module and a control module;

[0008] The detection component includes a frame; a group of machine vision cameras are evenly distributed inside the frame;

[0009] The conveying component comprises a machine tool; a tensioning roller and a group of supporting rollers are rotatably connected inside the machine tool, and the tensioning roller is located below the supporting roller; a conveyor belt is sleeved on the surface of the supporting roller and the tensioning roller; a downwardly concave vertical groove is formed at the part where the conveyor belt passes around the tensioning roller;

[0010] The flipping component includes a lever; the lever is located inside the vertical slot, and one end of the lever is hinged to the inner side of the machine tool; an electric telescopic rod is hinged between the lower side of the lever and the machine tool;

[0011] The analysis module is used to receive the image data transmitted by the machine vision camera and analyze and process the image data; the control module is used to control the working state of the conveying component and the turning component.

[0012] Preferably, the number of the machine vision cameras is four and they are symmetrical in pairs, and the machine vision cameras are all inclined toward the middle of the conveyor belt.

[0013] Preferably, a support plate is fixedly connected to the inner side of the frame at a position opposite to the shift rod; an inclined plate is hingedly connected to the upper side of one end of the support plate extending above the conveyor belt; and a spring is fixedly connected between the inclined plate and the support plate.

[0014] Preferably, a pair of mounting plates are symmetrically fixedly connected to the surface of the machine tool at one side of the frame; an inclined guide frame is fixedly connected to the surface of the mounting plate, and the guide frame is located above the conveyor belt; a group of rollers are evenly distributed on the opposite side of the guide frame.

[0015] Preferably, a rubber pad is fixedly connected to the upper side of the lever; the rubber pad is designed to be "V" shaped with its opening facing upward.

[0016] Preferably, a mounting block is fixedly connected to the inner side of the frame at a position corresponding to the inclined plate; a rotating wheel is rotatably connected to the surface of the mounting block, and the rotating wheel is driven by a motor, and a connecting rod is hinged between the edge of the end face of the rotating wheel and the inclined plate.

[0017] Preferably, a storage groove is opened inside the support plate; a top plate is slidably connected inside the storage groove; a stopper is fixedly connected inside the storage groove; an elastic member is fixedly connected between the stopper and the top plate; a pull rope is fixedly connected to one side of the inclined plate close to the spring, and the other end of the pull rope passes through the stopper and is fixedly connected to the top plate.

[0018] Preferably, a hollow and elastic folding part is fixedly connected between the inclined plate and the support plate; a guide hole is provided between the inside of the folding part and the storage groove; an air inlet hole and an air outlet hole are provided between the lower side of the support plate and the storage groove; a one-way valve is provided inside the air inlet hole; and a pressure relief valve is provided inside the air outlet hole.

[0019] An intelligent visual detection method for industrial code reading, the method adopts the above-mentioned intelligent visual detection device for industrial code reading, and comprises the following steps:

[0020] S1: Place the goods on the conveyor belt surface for transportation. When the machine vision camera detects that the goods move into the rack and are above the vertical slot, the controller controls the conveyor belt to stop moving.

[0021] S2: Detect and read the goods through the machine vision camera, and use the analysis module to receive the image data transmitted by the machine vision camera and analyze and process it;

[0022] S3: The controller controls the electric telescopic rod to extend, driving the lever to rotate upward and move the bottom of the cargo, causing the cargo to flip to the other side, so that the bottom of the cargo is exposed to the sensing range of the machine vision camera after flipping, so as to detect and read the code on all surfaces of the cargo;

[0023] S4: After the goods are overturned, they fall on the inclined plate surface and compress the spring, which is used to cushion and protect the goods to prevent them from being damaged by impact after being overturned;

[0024] S5: The motor drives the wheel to rotate, and the connecting rod and the spring cooperate to make the inclined plate swing back and forth continuously, thereby shaking the goods to the middle of the conveyor belt, so that the goods are fully separated from the inclined plate.

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

[0026] 1. The intelligent visual inspection device and method for industrial code reading described in the present invention utilizes a conveyor belt to transport goods. When a machine vision camera detects that the goods have moved into a rack and are located above a vertical slot, a controller controls the conveyor belt to stop moving, and then the goods are inspected and code-read by the machine vision camera. Then, the controller controls the electric telescopic rod to extend, driving the lever to rotate upward and move the bottom of the goods, causing the goods to flip to the other side, so that the lower side of the goods is exposed to the perception range of the machine vision camera after flipping, so as to facilitate the inspection and code-reading of all surfaces of the goods, avoid the problem of blind angles in detection during the transportation process, and fully improve the detection efficiency.

[0027] 2. The intelligent visual inspection device and method for industrial code reading described in the present invention can enable the goods to fall on the surface of the inclined plate after being turned over and compress the spring, and use the spring to provide buffering protection for the goods to prevent them from being damaged by impact after being turned over. The inclined plate can also be used to guide the goods after being turned over, and the elastic expansion and contraction of the spring can help to cause the goods to slide back to the middle of the conveyor belt to facilitate subsequent transportation work. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be further described below in conjunction with the accompanying drawings.

[0029] Figure 1 is a stereogram of the present invention;

[0030] Figure 2 It is a structural schematic diagram of the rack in the present invention;

[0031] Figure 3 It is a structural schematic diagram of the conveyor belt in the present invention;

[0032] Figure 4 It is a structural schematic diagram of the lever in the present invention;

[0033] Figure 5 It is a structural schematic diagram of the inclined plate in the present invention;

[0034] Figure 6 is a cross-sectional view of the present invention;

[0035] Figure 7 yes Figure 6 A partial enlarged view of the middle part;

[0036] Figure 8 yes Figure 7 A partial enlarged view of point B in the middle;

[0037] Fig. 9 It is a schematic flow chart of the method of the present invention.

[0038] In the figure: frame 1, machine vision camera 2, machine tool 3, tensioning roller 4, support roller 5, conveyor belt 6, vertical groove 7, lever 8, electric telescopic rod 9, support plate 10, inclined plate 11, spring 12, mounting plate 13, guide frame 14, roller 15, rubber pad 16, mounting block 17, rotating wheel 18, motor 19, connecting rod 20, storage groove 21, top plate 22, stopper 23, elastic member 24, pull rope 25, folding member 26, guide hole 27, air inlet 28, air outlet 29, and cargo 30. DETAILED DESCRIPTION

[0039] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0040] like Figures 1 to 8 As shown, the intelligent visual inspection device for industrial code reading of the present invention comprises a detection component, a conveying component, a flipping component, an analysis module and a control module;

[0041] The detection component includes a frame 1; a group of machine vision cameras 2 are evenly distributed inside the frame 1;

[0042] The conveying component includes a machine tool 3; a tensioning roller 4 and a group of supporting rollers 5 are rotatably connected inside the machine tool 3, and the tensioning roller 4 is located below the supporting roller 5; a conveyor belt 6 is sleeved on the surface of the supporting roller 5 and the tensioning roller 4; the conveyor belt 6 bypasses the tensioning roller 4 to form a downwardly concave vertical groove 7;

[0043] The flipping component includes a lever 8; the lever 8 is located inside the vertical slot 7, and one end of the lever 8 is hinged to the inner side of the machine tool 3; an electric telescopic rod 9 is hinged between the lower side of the lever 8 and the machine tool 3;

[0044] The analysis module is used to receive the image data transmitted by the machine vision camera 2 and analyze and process the image data; the control module is used to control the working state of the conveying component and the turning component.

[0045] The visual inspection device in the prior art usually uses a conveyor belt 6 to convey the goods 30, and then uses an intelligent industrial camera to inspect or read the code of the goods 30. However, the goods 30 are placed on the conveyor belt 6, and the lower side of the goods 30 is blocked by the conveyor belt 6, resulting in the inability of the intelligent industrial camera to fully detect all surfaces of the goods 30. In addition, if the identification code is located on the lower side when the conveyor belt 6 is placed, it will also affect the code reading work and reduce the working efficiency of the visual inspection.

[0046] When in use, the present invention utilizes the conveyor belt 6 to convey the goods 30. When the machine vision camera 2 detects that the goods 30 move to the inside of the frame 1 and are located above the vertical slot 7, the controller controls the conveyor belt 6 to stop moving, and then the machine vision camera 2 detects and reads the code of the goods 30. Then the controller controls the electric telescopic rod 9 to extend, driving the lever 8 to rotate upward and move the bottom of the goods 30, prompting the goods 30 to flip to the other side, so that the lower side of the goods 30 is exposed to the perception range of the machine vision camera 2 after flipping, so as to facilitate the detection and code reading of all surfaces of the goods 30, avoid the problem of detection blind spots caused by the transportation process, and fully improve the detection efficiency.

[0047] The goods 30 mentioned in the above working process can be workpieces in the production and processing field, or parcel boxes in the logistics field, etc. When the goods 30 are workpieces, the machine vision camera 2 can be used to detect the surface quality, size, shape and other parameters of the workpiece. When the goods 30 are parcel boxes, the machine vision camera 2 can be used to detect whether the parcel boxes are damaged or dirty, and identify barcodes, QR codes, text, etc., so as to track or sort the parcel boxes.

[0048] The number of the machine vision cameras 2 is four and they are symmetrical in pairs, and the machine vision cameras 2 are all tilted toward the middle of the conveyor belt 6. By setting four machine vision cameras 2 to simultaneously capture and sense the surface of the goods 30, all surfaces of the goods 30 except the bottom can be inspected and read, thereby improving the coverage and inspection quality of visual inspection and meeting the inspection requirements to the greatest extent.

[0049] As a preferred embodiment of the present invention, a support plate 10 is fixedly connected to the inner side of the frame 1 at a position opposite to the lever 8; an inclined plate 11 is hingedly connected to the upper side of one end of the support plate 10 extending above the conveyor belt 6; a spring 12 is fixedly connected between the inclined plate 11 and the support plate 10. After the goods 30 are turned over, they can fall on the surface of the inclined plate 11 and compress the spring 12, and the spring 12 is used to buffer and protect the goods 30 to prevent them from being damaged by impact after turning over, and the inclined plate 11 is used to guide the goods 30 after turning over, and the elastic expansion and contraction of the spring 12 is conducive to causing the goods 30 to slide back to the middle of the conveyor belt 6, so as to facilitate subsequent conveying work.

[0050] As a preferred embodiment of the present invention, a pair of mounting plates 13 are symmetrically fixedly connected to the surface of the machine tool 3 at one side of the frame 1; an inclined guide frame 14 is fixedly connected to the surface of the mounting plate 13, and the guide frame 14 is located above the conveyor belt 6; a group of rollers 15 are evenly distributed on the opposite side of the guide frame 14. Since it is impossible to ensure that the goods 30 are placed in the center of the conveyor belt 6 every time, a pair of guide frames 14 are provided to guide the goods 30 moving toward the frame 1, so as to center the goods 30, so that the goods 30 are in the middle of the conveyor belt 6 when they move to the inside of the frame 1, so as to improve the visual inspection effect, and ensure that the subsequent lever 8 can smoothly turn the goods 30 over, and the rollers 15 are provided to reduce the resistance between the goods 30 and the guide frame 14, and prevent the goods 30 from being damaged by friction.

[0051] As a preferred embodiment of the present invention, a rubber pad 16 is fixedly connected to the upper side of the lever 8; the rubber pad 16 is designed to be "V" shaped and the opening is upward. By providing the rubber pad 16, the lever 8 and the goods 30 are in flexible contact, which further protects the goods 30, prevents the lever 8 from scratching the surface of the goods 30, and reduces the relative slip between the lever 8 and the goods 30, thereby increasing the success rate of moving the goods 30. When the rubber pad 16 is squeezed, its "V" shaped structure can open to both sides, increasing the contact area with the goods 30, and further improving the stability during the turning.

[0052] As a preferred embodiment of the present invention, a mounting block 17 is fixedly connected to the inner side of the frame 1 at a position corresponding to the inclined plate 11; a rotating wheel 18 is rotatably connected to the surface of the mounting block 17, and the rotating wheel 18 is driven by a motor 19, and a connecting rod 20 is hinged between the edge of the end face of the rotating wheel 18 and the inclined plate 11. After the goods 30 are turned over, the rotating wheel 18 is driven to rotate by the motor 19, and the inclined plate 11 is continuously swung back and forth by the cooperation of the connecting rod 20 and the spring 12, so that the goods 30 are shaken toward the middle of the conveyor belt 6, so that the goods 30 are fully separated from the inclined plate 11, and the dust or other sundries adhering to the surface of the goods 30 can be shaken off during the shaking process, so as to clean the goods 30 and improve the factory quality of the goods 30, and at the same time, it is convenient for the machine vision camera 2 to detect or read the code.

[0053] As a preferred embodiment of the present invention, a storage groove 21 is opened inside the support plate 10; a top plate 22 is slidably connected inside the storage groove 21; a stopper 23 is fixedly connected inside the storage groove 21; an elastic member 24 is fixedly connected between the stopper 23 and the top plate 22; a pull rope 25 is fixedly connected to the side of the inclined plate 11 close to the spring 12, and the other end of the pull rope 25 passes through the stopper 23 and is fixedly connected to the top plate 22. When the inclined plate 11 deflects downward, the elastic member 24 pushes the top plate 22 to slide inside the storage groove 21, and then the top plate 22 extends outward and pushes the cargo 30. When the inclined plate 11 deflects upward, the pull rope 25 is used to pull the top plate 22 to return to the inside of the storage groove 21, and the elastic member 24 is in a compressed state. The inclined plate 11 continuously swings back and forth and deflects, and the efficiency of pushing the cargo 30 to the middle of the conveyor belt 6 is further improved by using the top plate 22. When the top plate 22 pushes the cargo 30, the inclination degree and center of gravity of the cargo 30 can be reduced, thereby preventing the uncontrollable overturning of the cargo 30 in other directions caused by the shaking of the cargo 30 by the inclined plate 11.

[0054] In order to reduce the movement resistance of the pull rope 25, a guide wheel can be set at the storage groove 21, and the pull rope 25 can be passed around the surface of the guide wheel. The pull rope 25 can drive the guide wheel to rotate during the movement, thereby improving the smoothness of the movement of the pull rope 25 and the top plate 22.

[0055] As a preferred embodiment of the present invention, a hollow and elastic folding piece 26 is fixedly connected between the inclined plate 11 and the support plate 10; a guide hole 27 is provided between the inside of the folding piece 26 and the storage groove 21; an air inlet 28 and an air outlet 29 are provided between the lower side of the support plate 10 and the storage groove 21; a one-way valve is provided inside the air inlet 28; and a pressure relief valve is provided inside the air outlet 29. When the inclined plate 11 deflects downward, the folding piece 26 is squeezed, and the air inside the folding piece 26 is used to further cushion and protect the goods 30. The air inside the folding piece 26 is squeezed and enters the storage groove 21 through the guide hole 27, increasing the pressure inside the storage groove 21, promoting the top plate 22 to slide outward, and increasing the top pressure when the top plate 22 extends outward. After that, when the pressure inside the storage groove 21 reaches a certain threshold, the pressure is relieved by jetting downward through the pressure relief valve in the air outlet 29, and then the airflow acts on the surface of the conveyor belt 6 to blow away dust and other impurities on the surface of the conveyor belt 6. When the inclined plate 11 deflects upward, the folding piece 26 re-inhales air and expands through the air inlet hole 28 and the guide hole 27, so that it can work repeatedly in a cycle.

[0056] like Fig. 9 As shown, the intelligent visual detection method for industrial code reading described in the present invention adopts the above-mentioned intelligent visual detection device for industrial code reading, and comprises the following steps:

[0057] S1: placing the goods 30 on the surface of the conveyor belt 6 for conveying. When the machine vision camera 2 detects that the goods 30 moves into the rack 1 and is located above the vertical slot 7, the controller controls the conveyor belt 6 to stop moving;

[0058] S2: Detect and read the code of the goods 30 through the machine vision camera 2, and use the analysis module to receive the image data transmitted by the machine vision camera 2 and analyze and process it;

[0059] S3: The controller controls the electric telescopic rod 9 to extend, driving the lever 8 to rotate upward and move the bottom of the cargo 30, causing the cargo 30 to flip to the other side, so that the bottom of the cargo 30 is exposed to the sensing range of the machine vision camera 2 after flipping, so as to detect and read the code on all surfaces of the cargo 30;

[0060] S4: The cargo 30 flips over and falls on the surface of the inclined plate 11 and compresses the spring 12, so that the spring 12 is used to buffer and protect the cargo 30 to prevent the cargo 30 from being damaged by impact after flipping over;

[0061] S5: The motor 19 drives the rotating wheel 18 to rotate, and the connecting rod 20 and the spring 12 cooperate to make the inclined plate 11 swing back and forth continuously, thereby shaking the goods 30 to the middle of the conveyor belt 6, so that the goods 30 are fully separated from the inclined plate 11.

[0062] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0063] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0064] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An intelligent visual inspection device for industrial code reading, characterized in that: It includes a detection component, a conveying component, a flipping component, an analysis module and a control module; The detection component comprises a frame (1); a group of machine vision cameras (2) are evenly distributed inside the frame (1); The conveying component comprises a machine tool (3); a tensioning roller (4) and a group of supporting rollers (5) are rotatably connected inside the machine tool (3), and the tensioning roller (4) is located below the supporting roller (5); a conveying belt (6) is sleeved on the surface of the supporting roller (5) and the tensioning roller (4); a downwardly concave vertical groove (7) is formed at the part where the conveying belt (6) bypasses the tensioning roller (4); The flipping component comprises a lever (8); the lever (8) is located inside the vertical slot (7), and one end of the lever (8) is hinged to the inside of the machine tool (3); an electric telescopic rod (9) is hinged between the lower side of the lever (8) and the machine tool (3); The analysis module is used to receive image data transmitted by the machine vision camera (2) and analyze and process the image data; the control module is used to control the working state of the conveying component and the turning component; A support plate (10) is fixedly connected to the inner side of the frame (1) at a position opposite to the shifting rod (8); an inclined plate (11) is hingedly connected to the upper side of one end of the support plate (10) extending above the conveyor belt (6); a spring (12) is fixedly connected between the inclined plate (11) and the support plate (10); A mounting block (17) is fixedly connected to the inner side of the frame (1) at a position corresponding to the inclined plate (11); a rotating wheel (18) is rotatably connected to the surface of the mounting block (17), and the rotating wheel (18) is driven by a motor (19); a connecting rod (20) is hinged between the edge of the end surface of the rotating wheel (18) and the inclined plate (11); The support plate (10) is provided with a storage groove (21) inside; the storage groove (21) is slidably connected to a top plate (22); a stopper (23) is fixedly connected to the storage groove (21); an elastic member (24) is fixedly connected between the stopper (23) and the top plate (22); a pull rope (25) is fixedly connected to one side of the inclined plate (11) close to the spring (12), and the other end of the pull rope (25) passes through the stopper (23) and is fixedly connected to the top plate (22); A hollow and elastic folding member (26) is fixedly connected between the inclined plate (11) and the support plate (10); a guide hole (27) is provided between the interior of the folding member (26) and the receiving groove (21); an air inlet (28) and an air outlet (29) are provided between the lower side of the support plate (10) and the receiving groove (21); a one-way valve is provided inside the air inlet (28); and a pressure relief valve is provided inside the air outlet (29).

2. The intelligent visual inspection device for industrial code reading according to claim 1, characterized in that: The number of the machine vision cameras (2) is four and they are symmetrical in pairs, and the machine vision cameras (2) are all inclined toward the middle of the conveyor belt (6).

3. The intelligent visual inspection device for industrial code reading according to claim 2, characterized in that: A pair of mounting plates (13) are symmetrically fixedly connected to the surface of the machine tool (3) at one side of the frame (1); an inclined guide frame (14) is fixedly connected to the surface of the mounting plate (13), and the guide frame (14) is located above the conveyor belt (6); and a group of rollers (15) are evenly distributed on the opposite side of the guide frame (14).

4. The intelligent visual inspection device for industrial code reading according to claim 3, characterized in that: A rubber pad (16) is fixedly connected to the upper side of the lever (8); the rubber pad (16) is designed to be in a "V" shape with its opening facing upward.

5. An intelligent visual inspection method for industrial code reading, the method adopts the intelligent visual inspection device for industrial code reading according to claim 4, characterized in that: The following steps are involved: S1: placing the cargo (30) on the surface of the conveyor belt (6) for conveyance, and when the machine vision camera (2) detects that the cargo (30) moves into the frame (1) and is located above the vertical slot (7), the controller controls the conveyor belt (6) to stop moving; S2: Detecting and reading the code of the goods (30) by using the machine vision camera (2), and using the analysis module to receive the image data transmitted by the machine vision camera (2) and analyze and process the image data; S3: Controlling the electric telescopic rod (9) to extend through a controller, driving the lever (8) to rotate upward and move the bottom of the cargo (30), causing the cargo (30) to flip to the other side, so that the bottom of the cargo (30) is exposed within the sensing range of the machine vision camera (2) after flipping, so as to detect and read the code on all surfaces of the cargo (30); S4: After the cargo (30) turns over, it falls on the surface of the inclined plate (11) and compresses the spring (12), and the spring (12) is used to provide buffering protection for the cargo (30) to prevent the cargo (30) from being damaged by impact after turning over; S5: The motor (19) drives the rotating wheel (18) to rotate, and the connecting rod (20) and the spring (12) cooperate to make the inclined plate (11) swing back and forth continuously, thereby shaking the goods (30) toward the middle of the conveyor belt (6), so that the goods (30) are fully separated from the inclined plate (11).

Images