Radiation disinfection and sterilization error-proof flipping device and method

Abstract

The present invention discloses a radiation disinfection and sterilization error-leakage-proof flipping device and method, comprising a conveyor line, one end of the conveyor line is located at the entrance of the irradiation chamber, and the other end is located at the exit of the irradiation chamber, a flipping station is arranged on the conveyor line, a labeling station is arranged between the flipping station and the exit of the irradiation chamber, and a label inspection station is arranged between the flipping station and the entrance of the irradiation chamber; a mounting frame is arranged on the labeling station, a telescopic sleeve is arranged on the mounting frame, a labeling assembly is arranged below the telescopic sleeve, and an arc-shaped height adjustment plate is arranged on the telescopic sleeve; a label recognition assembly and a telescopic push rod are arranged on the label inspection station, and the label recognition assembly includes a camera and an image processing unit. The present invention utilizes the labeling station to attach a label to the irradiated side of the product packaging box, and utilizes the label to determine whether the product packaging box is flipped, so as to prevent the product packaging box from being flipped and ensure the effect of radiation disinfection.

Description

Technical Field

[0001] The invention relates to the field of radiation technology, and in particular to a radiation disinfection and sterilization error-proof and leakage-proof flipping device and method. Background Art

[0002] Irradiation sterilization is an effective method of using electromagnetic waves generated by ionizing radiation to kill microorganisms on most substances. Irradiation sterilization technology is widely used in industrial production in the fields of material modification, new material production, environmental protection, processing and production, sterilization of medical and health products, and food sterilization and preservation. It is also widely used in the logistics industry today to irradiate and sterilize various product boxes to ensure the safety of express product boxes.

[0003] During irradiation sterilization, the product boxes need to be placed on a conveyor belt and sent into the irradiation room for irradiation sterilization. After being sent out, the product boxes need to be turned 180 degrees and then re-entered into the irradiation room for secondary irradiation sterilization. Since the express product boxes tested in the same batch are of different sizes, the general turning fixture is for items of similar sizes and is not suitable for turning over express product boxes with large size differences. Therefore, in many cases, product boxes are still turned over manually. When turning over manually, workers' attention decreases after working for a long time, and it is easy to miss or turn over the wrong box, resulting in some express product boxes being repeatedly irradiated and disinfected on only one side, while the other side is not irradiated. The disinfection is not thorough, and the virus is easy to spread. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a radiation disinfection and sterilization error-proof flipping device and method, which can ensure that the front and back sides of the product packaging box are both irradiated and disinfected, preventing viruses from remaining on the product packaging box.

[0005] To this end, the first technical solution of the present invention is: a radiation disinfection and sterilization error-proof flipping device, comprising a conveyor line, one end of the conveyor line is located at the entrance of the irradiation chamber, and the other end is located at the exit of the irradiation chamber, a flipping station is provided on the conveyor line, a labeling station is provided between the flipping station and the exit of the irradiation chamber, and a label inspection station is provided between the flipping station and the entrance of the irradiation chamber; a mounting frame is provided on the labeling station, a telescopic sleeve is provided on the mounting frame, and a labeling assembly is installed below the telescopic sleeve; a height adjustment plate inclined upward is installed on the telescopic sleeve, and the height adjustment plate is an arc-shaped structure as a whole; a label recognition assembly and a telescopic push rod are provided on the label inspection station, and the label recognition assembly includes a camera and an image processing unit; a conveyor belt is provided on the side of the conveyor line, and the conveyor belt is perpendicular to the conveyor line and is opposite to the push rod.

[0006] The conveyor line of the present invention is used to move product packaging boxes to be irradiated and sterilized. The product packaging boxes enter from the entrance of the irradiation room, are irradiated once in the irradiation room, and the irradiated product packaging boxes come out from the exit of the irradiation room, and then are labeled at the labeling station to prove that the side has been irradiated and sterilized. Due to the different sizes of the product packaging boxes, the height adjustment of the labeling component adopts mechanical adjustment, and the height of the product packaging box itself is used to push the height adjustment plate upward, so that the labeling component moves to the top of the product packaging box; then the product packaging box moves to the flipping station to be manually turned over, and the turned product packaging box enters the label inspection station. After the image is captured by the camera, the image processing unit can identify whether there is a label on the upper surface of the product packaging box; if there is no label, the product packaging box is qualified and enters the irradiation room for secondary irradiation; if there is a label, it means that the product packaging box has not been turned over, and the push rod can remove the product packaging box from the conveyor line, push it onto the conveyor belt, wait for the worker to turn it over again, and then put it back on the conveyor line, to ensure that each product packaging box can be turned over for secondary irradiation and sterilization, and omission occurs when placing.

[0007] Preferably, the labeling assembly includes a mounting plate, which is fixed on the telescopic sleeve, and a labeling cylinder is provided at the mounting plate; a labeling bracket is installed below the labeling cylinder, and a label mounting shaft, a guide shaft, a pressure plate, a recovery shaft and a recovery motor are provided on the labeling bracket, and the pressure plate is located at the lowest position of the labeling bracket; it also includes labels and auxiliary belts, and the labels are evenly arranged on the auxiliary belts, and the auxiliary belts are wound into a roll and mounted on the label mounting shaft; the ends of the auxiliary belts pass through the guide shaft and the pressure plate in turn, and are fixed on the recovery shaft, and the recovery motor drives the recovery shaft to rotate. When the product packaging box moves to the labeling station, the labeling cylinder drives the labeling bracket to move down, the pressure plate fits the upper surface of the product packaging box, the recovery motor drives the recovery shaft to rotate, and the auxiliary belt is recovered, and the product packaging box continues to move forward, so that the label on the auxiliary belt is attached to the upper surface of the product packaging box, and then the labeling cylinder drives the labeling bracket to move up to avoid repeated labeling of the product packaging box. And the position difference between the labeling component and the height adjustment plate is fixed, so each time the product packaging box is located below the labeling component, the height difference between the two is fixed, that is, the stroke of the labeling cylinder remains unchanged.

[0008] Preferably, the mounting frame is a door-type structure, which is arranged above the conveyor line; the telescopic sleeve includes a cylinder, a connector and a spring, the cylinder is fixed on the mounting frame, the connector is placed in the cylinder, and a slide groove is provided on the inner wall of the cylinder, and the top of the connector is placed in the slide groove; the spring is sleeved on the connector, one end of which is against the bottom of the cylinder and the other end is against the connector. The labeling assembly is installed on the connector, the cylinder is fixed on the door-type mounting frame, the spring gives the connector an upward force, which is offset by the gravity of the labeling assembly, and the spring of appropriate size is selected so that when the labeling assembly maintains force balance, the labeling assembly is in a low position; when the product packaging box comes out of the irradiation room and enters the labeling station, the product packaging box first contacts the height adjustment plate, which will slowly lift the labeling assembly so that the height of the labeling assembly matches that of the product packaging box. When the product packaging box passes under the labeling assembly, it will be labeled to show that the side has been irradiated and sterilized. The spring is compressed, and when the product packaging box lifts the connector, the compression of the spring is reduced, which can also keep the labeling assembly balanced. When the product packaging box passes by, the labeling component will move down to the lowest position under the action of its own gravity and return to its initial state.

[0009] Preferably, the height adjustment plate is fixed on the connecting piece, and a roller is provided on the bottom surface of the height adjustment plate. The product packaging box first contacts the product packaging box, and as the product packaging box moves, the height adjustment plate is slowly raised, and the height adjustment plate drives the connecting piece and the labeling assembly to move upward, so that the height of the labeling assembly matches that of the product packaging box; the roller under the height adjustment plate can reduce the friction between the height adjustment plate and the product packaging box.

[0010] Preferably, the labeling station and the label inspection station are both provided with infrared detectors. The conveyor line is provided with an infrared transmitter and an infrared receiver on both sides of the labeling station and the label inspection station. Under normal circumstances, the infrared receiver can receive the infrared signal sent by the infrared transmitter. When the product packaging box moves to the labeling station or the label inspection station, it will be located between the infrared transmitter and the infrared receiver, blocking the reception of the infrared signal, thereby starting the labeling or label inspection work.

[0011] Preferably, the camera is installed above the label inspection station to photograph the upper surface of the product packaging box and send the photographed image to the image processing unit, which is used to detect whether there is a label in the received image; the push rod is installed on the push cylinder. The label is attached to the irradiated side of the product packaging box. After normal flipping, the label will move to the lower surface. There should be no label in the upper surface image taken by the camera. If there is a label, it means that the product packaging box has not been turned over.

[0012] The second technical solution of the present invention is: a method for preventing mistakes and omissions during irradiation disinfection and sterilization, using the above device, comprising the following steps:

[0013] 1) Primary irradiation: product packaging boxes are placed on the conveyor line in sequence and sent to the irradiation room for primary irradiation sterilization;

[0014] 2) Labeling: After irradiation, the product packaging boxes are moved from the exit of the irradiation room to the labeling station in sequence, and labels are affixed to the upper surface of the product packaging boxes;

[0015] 3) Turning over: After labeling, the product packaging box is moved to the turning station and the product packaging box is turned over manually;

[0016] 4) Label inspection: The turned-over product packaging box moves to the label inspection station, and the camera takes a picture of the upper surface of the product packaging box and sends the captured image to the image processing unit, which is used to detect whether there is a label on the received image; if there is no label, it proves that the product packaging box has been turned over and is qualified; if there is a label, it proves that the product packaging box has not been turned over and is unqualified. The push rod pushes the unqualified product packaging box into the conveyor belt to continue to inspect the next product packaging box;

[0017] 5) Secondary irradiation: After passing the inspection, the product packaging boxes will be put back into the irradiation room for secondary irradiation disinfection.

[0018] Preferably, the specific steps of step 2) are as follows:

[0019] a. In the initial state, the labeling bracket is at the lowest position, and the elastic force of the compressed spring is equal to the weight of the labeling bracket.

[0020] Quantity balance;

[0021] b. When the product packaging box moves toward the labeling station, it first contacts the height adjustment plate. As the product packaging box moves, the arc-shaped height adjustment plate is slowly raised, thereby raising the labeling component, making the product packaging box

[0022] The boxes are packed into the labeling station, which is located below the labeling components;

[0023] c. After the first infrared detector of the labeling station senses that the product packaging box has entered the labeling station, the labeling cylinder drives the labeling bracket to move downward, the pressing plate is attached to the upper surface of the product packaging box, and the recycling motor drives the recycling shaft to rotate, driving the auxiliary belt to move, and the label on the auxiliary belt is attached to the upper surface of the product packaging box;

[0024] d. The labeling cylinder drives the labeling bracket to move upward, and the product packaging box moves toward the flipping station.

[0025] Preferably, in step 4), the unqualified product packaging boxes on the conveyor belt are manually turned over and put back on the conveyor line for secondary label inspection. After passing the label inspection, they are sent to the irradiation room for secondary irradiation disinfection.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1) A labeling station is set up at the exit of the irradiation room to affix a label on the irradiated side of the product packaging box; a label inspection station is set up before the entrance of the irradiation room to verify whether there is a label on the top of the product packaging box. The label is the basis for judging whether to turn over, which can prevent the product packaging box from being turned over accidentally and ensure the effect of irradiation disinfection and sterilization;

[0028] 2) The height of the labeling component is adjusted by the height of the product packaging box itself. Product packaging boxes of any size can pass through the labeling station and be labeled. It is suitable for material industries with product packaging boxes of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings.

[0030] Figure 1 It is a structural schematic diagram of the present invention;

[0031] Figure 2 It is a top view of the structure of the present invention;

[0032] Figure 3 It is a schematic diagram of the initial state of the labeling station of the present invention;

[0033] Figure 4 This is a schematic diagram of the working state of the labeling station of the present invention;

[0034] Figure 5 It is a structural schematic diagram of the labeling assembly of the present invention;

[0035] Figure 6 for Figure 5 A partial enlarged view of

[0036] Figure 7 It is a structural schematic diagram of the auxiliary belt of the present invention;

[0037] Figure 8 It is a structural schematic diagram of the mark verification station of the present invention.

[0038] The markings in the figure are: conveyor line 1, flip station 2, labeling station 3, mounting frame 31, cylinder 32, connecting piece 33, spring 34, height adjustment plate 35, roller 36, first infrared detector 37;

[0039] The mark inspection station 4, the camera 41, the push rod 42, the push cylinder 43, and the second infrared detector 44;

[0040] Labeling assembly 5, mounting plate 51, labeling cylinder 52, labeling bracket 53, label 54, auxiliary belt 55, label mounting shaft 56, pressing plate 57, recovery shaft 58, first guide shaft 59, second guide shaft 510, third guide shaft 511, limit block 512, roller 513; conveyor belt 6, product packaging box 7, irradiation chamber 8, irradiation chamber entrance 81, irradiation chamber exit 82. DETAILED DESCRIPTION

[0041] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present invention.

[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the present invention, "several" and "a number" mean two or more, unless otherwise clearly and specifically defined.

[0043] The radiation sterilization error and leakage prevention device described in this embodiment includes a conveyor line 1, one end of which is located at the entrance 81 of the irradiation chamber, and the other end is located at the exit 82 of the irradiation chamber. A turning station 2 is provided on the conveyor line 1, a labeling station 3 is provided between the turning station 2 and the exit of the irradiation chamber, and a label checking station 4 is provided between the turning station 2 and the entrance of the irradiation chamber.

[0044] The labeling station 3 is provided with a mounting frame 31, which is a door-shaped structure and is arranged above the conveyor line; the mounting frame 31 is provided with a telescopic sleeve, which includes a cylinder 32, a connecting piece 33 and a spring 34. The cylinder 32 is fixed on the mounting frame 31, and the connecting piece 33 is placed in the cylinder 32. The spring 34 is sleeved on the connecting piece 33, with one end against the bottom of the cylinder 32 and the other end against the connecting piece 33. A height adjustment plate 35 tilted upward is installed on the connecting piece 33 of the telescopic sleeve. The height adjustment plate is an arc-shaped structure as a whole, and a roller 36 is provided on the bottom of the height adjustment plate.

[0045] A labeling assembly 5 is installed below the telescopic sleeve, and the labeling assembly 5 includes a mounting plate 51, which is fixed on the connecting piece of the telescopic sleeve, and a labeling cylinder 52 is installed at the mounting plate 51; a labeling bracket 53 is installed below the labeling cylinder 52, and the labeling bracket is provided with labels 54, auxiliary belts 55, label installation shafts 56, guide shafts, pressing plates 57, recycling shafts 58 and recycling motors, and the pressing plates 57 are located at the lowest position of the labeling bracket 53; the labels 54 are evenly arranged on the auxiliary belts 55, and the auxiliary belts 55 are wound into a roll and mounted on the label installation shaft 56; the guide shafts include a first guide shaft 59, a second guide shaft 510 and a third guide shaft 511, and the first guide shaft 59 and the second guide shaft 510 are located between the label installation shaft 56 and the pressing plate 57. The third guide shaft 511 is located between the pressure plate 57 and the recovery shaft 58, and is used to change the direction of the auxiliary belt; the front end of the pressure plate is triangular, a limit block 512 is provided above the pressure plate 57, and a roller 513 is provided in front of the pressure plate; the end of the auxiliary belt 55 passes through the upper end of the first guide shaft 59 and the lower end of the second guide shaft 510 in turn, and then changes direction from the top of the pressure plate 57 and the front end of the pressure plate to the bottom of the pressure plate, and then changes direction at the upper end of the third guide shaft 511, and is fixed on the recovery shaft 58. The recovery shaft is installed on the recovery motor, and the recovery motor can drive the recovery shaft to rotate, and the recovery shaft winds the auxiliary belt, and the auxiliary belt 55 can be wound from the front end of the pressure plate to the bottom, and the label 54 on the auxiliary belt will not be complete with the pressure plate, but will be separated from the auxiliary belt, which makes it more convenient for the label to be attached to the upper surface of the product packaging box.

[0046] The labeling component 5 is installed on the connecting piece 33, and the cylinder 32 is fixed on the door-type mounting frame 31. The spring 34 gives the connecting piece 33 an upward force to offset the gravity of the labeling component 5. The spring of appropriate size is selected so that the labeling component is in a low position when the force of the labeling component is balanced; when the product packaging box 7 comes out of the irradiation chamber 8, the product packaging box 7 first contacts the height adjustment plate 35. As the product packaging box moves, the height adjustment plate 35 will be slowly raised. The height adjustment plate 35 will drive the connecting piece 33 and the labeling component 5 to move up, so that the height of the labeling component 5 matches that of the product packaging box; the roller 36 under the height adjustment plate 35 can reduce the friction between the height adjustment plate 35 and the product packaging box 7.

[0047] When the product packaging box 7 moves to the labeling station 2, the labeling cylinder 52 drives the labeling bracket 53 to move down, the pressing plate 57 is in contact with the upper surface of the product packaging box 7, and the recovery motor drives the recovery shaft 58 to rotate, recovering the auxiliary belt 55, and the product packaging box 7 continues to move forward, so that the label 54 on the auxiliary belt 55 is attached to the upper surface of the product packaging box 7, and then the labeling cylinder 52 drives the labeling bracket 53 to move up to avoid repeated labeling of the product packaging box 7. The product packaging box 7 is affixed with a label 54, indicating that the side has been irradiated and sterilized. After the product packaging box passes, the labeling component will move down to the lowest position under the action of its own gravity and return to the initial state.

[0048] The label inspection station 4 is provided with a label recognition component and a retractable push rod 42. The label recognition component includes a camera 41 and an image processing unit. The camera 41 is installed above the label inspection station to shoot the upper surface of the product packaging box and send the captured image to the image processing unit. The image processing unit is used to detect whether there is a label in the received image. The conveyor belt 6 is provided on the side of the conveyor line 1. The conveyor belt 6 is perpendicular to the conveyor line 1 and is opposite to the push rod 42. The push rod 42 is installed on the push cylinder 43. The label is attached to the irradiated side of the product packaging box. After normal flipping, the label will move to the lower surface. There should be no label in the upper surface image taken by the camera. If there is a label, it means that the product packaging box has not been flipped over. The push rod 42 pushes the product packaging box into the conveyor belt 6.

[0049] The labeling station 3 is provided with a first infrared detector 37, and the label inspection station 4 is provided with a second infrared detector 44. The conveyor line is equipped with an infrared transmitter and an infrared receiver on both sides of the labeling station and the label inspection station. Under normal circumstances, the infrared receiver can receive the infrared signal sent by the infrared transmitter. When the product packaging box moves to the labeling station or the label inspection station, it will be located between the infrared transmitter and the infrared receiver, blocking the reception of the infrared signal, thereby starting the labeling or label inspection work.

[0050] When used, the following steps are included:

[0051] 1) Single irradiation: product packaging boxes 7 are placed on the conveyor line 1 in sequence, enter from the irradiation chamber entrance 81, and are irradiated and sterilized once in the irradiation chamber 8; product packaging boxes 7 can be placed on the conveyor line 1 one by one manually. During the single irradiation, the label inspection station 4 is in a non-working state, and the product packaging boxes enter the irradiation chamber normally for sterilization and disinfection.

[0052] 2) Labeling: After the irradiation is completed, the product packaging box 7 is moved from the irradiation chamber exit 82 to the labeling station 3 in sequence, and a label 54 is attached to the upper surface of the product packaging box 7. The specific steps are as follows:

[0053] a. In the initial state, the labeling bracket 53 is at the lowest position, and the elastic force of the compressed spring 34 is balanced with the weight of the labeling bracket 53; at this time, the roller 36 at the bottom of the height adjustment plate 35 is lower than the pressure plate 57 at the lowest position of the labeling bracket;

[0054] b. When the product packaging box 7 moves toward the labeling station 3, it first contacts the height adjustment plate 35. As the product packaging box 7 moves, the arc-shaped height adjustment plate 35 is slowly lifted, thereby lifting the labeling component 5, so that the product packaging box 7 enters the labeling station 3 and is located below the labeling component 5;

[0055] c. After the first infrared detector 37 of the labeling station 3 senses that the product packaging box 7 has entered the labeling station 3, the labeling cylinder 52 drives the labeling bracket 53 to move downward, and the pressing plate 57 is in contact with the upper surface of the product packaging box 7. At this time, the pressing plate 57 is flush with the roller 36 at the bottom of the height adjustment plate; the recycling motor drives the recycling shaft 58 to rotate, and winds the auxiliary belt 55, so that the label 54 on the auxiliary belt is attached to the upper surface of the product packaging box;

[0056] d. The labeling cylinder 52 drives the labeling bracket 53 to move upward, and the product packaging box moves toward the flipping station 2.

[0057] 3) Turning over: the labeled product packaging box 7 is moved to the turning station 2, where the product packaging box is turned over manually and then moved toward the label inspection station.

[0058] 4) Label inspection: After the second infrared detector 44 of the label inspection station 4 senses that the product packaging box 7 has entered the label inspection station 4, the camera 41 photographs the upper surface of the product packaging box and sends the photographed image to the image processing unit. The image processing unit uses image recognition software to detect whether there is a label on the received image. The label can be a brightly colored circular label, or a fluorescent component can be added to the label for easy identification;

[0059] ① If there is no label on the captured image, it means that the product packaging box has been turned over and the label inspection is qualified. After the label inspection is qualified, the product packaging box will re-enter the irradiation room 8 for secondary irradiation disinfection;

[0060] ② If there is a label on the captured image, it proves that the product packaging box has not been turned over and the inspection fails. At this time, the pushing cylinder 43 drives the pushing rod 42 to move forward, pushes the unqualified product packaging box 7 into the conveyor belt 6, and continues to inspect the next product packaging box; and the unqualified product packaging boxes on the conveyor belt need to be manually turned over again and then placed on the conveyor line 1 for a second inspection. After the inspection is qualified, they are sent to the irradiation room 8 for secondary irradiation disinfection.

[0061] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A radiation disinfection and sterilization error-proof flipping device, comprising a conveying line, one end of the conveying line is located at the entrance of the irradiation chamber, the other end is located at the exit of the irradiation chamber, and a flipping station is provided on the conveying line; Features: A labeling station is provided between the flipping station and the irradiation chamber exit, and a label inspection station is provided between the flipping station and the irradiation chamber entrance; a mounting frame is provided on the labeling station, a telescopic sleeve is provided on the mounting frame, and a labeling assembly is installed below the telescopic sleeve; a height adjustment plate inclined upward is installed on the telescopic sleeve, and the height adjustment plate is an arc-shaped structure as a whole; The mounting frame is a door-shaped structure and is arranged above the conveyor line; the telescopic sleeve includes a cylinder, a connecting piece and a spring, the cylinder is fixed on the mounting frame, the connecting piece is placed in the cylinder, and a slide groove is provided on the inner wall of the cylinder, and the top of the connecting piece is placed in the slide groove; the spring is sleeved on the connecting piece, one end of which is against the bottom of the cylinder and the other end is against the connecting piece; the height adjustment plate is fixed on the connecting piece, and a roller is provided on the bottom surface of the height adjustment plate; The height adjustment plate is driven to rise by the product packaging box, and drives the connecting piece and the labeling component to move upward, so that the height of the labeling component matches that of the product packaging box; The label inspection station is provided with a label recognition component and a retractable push rod, the label recognition component includes a camera and an image processing unit; a conveyor belt is provided on the side of the conveyor line, the conveyor belt is perpendicular to the conveyor line and opposite to the push rod; the push rod is installed on the push cylinder; The camera is installed above the label inspection station and is used to photograph the upper surface of the product packaging box and send the photographed image to the image processing unit. The image processing unit is used to detect whether there is a label in the received image. If there is no label, the product packaging box has been turned over, and if there is a label, the product packaging box has not been turned over.

2. A radiation disinfection and sterilization error-proof flipping device as claimed in claim 1, Features: The labeling assembly includes a mounting plate, which is fixed on the telescopic sleeve, and a labeling cylinder is provided at the mounting plate; a labeling bracket is installed below the labeling cylinder, and the labeling bracket is provided with a label mounting shaft, a guide shaft, a pressure plate, a recovery shaft and a recovery motor, and the pressure plate is located at the lowest position of the labeling bracket; it also includes labels and auxiliary belts, and the labels are evenly arranged on the auxiliary belts, and the auxiliary belts are wound into a roll and mounted on the label mounting shaft; the ends of the auxiliary belts pass through the guide shaft and the pressure plate in turn, and are fixed on the recovery shaft, and the recovery motor drives the recovery shaft to rotate.

3. A radiation disinfection and sterilization error-proof flipping device as claimed in claim 2, Features: Infrared detectors are provided at the labeling station and the label checking station.

4. A method for preventing mistakes and omissions during irradiation disinfection and sterilization using the device of claim 3, Features: The following steps are involved: 1) Primary irradiation: product packaging boxes are placed on the conveyor line in sequence and sent to the irradiation room for primary irradiation sterilization; 2) Labeling: After irradiation, the product packaging boxes are moved from the exit of the irradiation room to the labeling station in sequence, and labels are affixed to the upper surface of the product packaging boxes; The specific steps are as follows: a. In the initial state, the labeling bracket is at the lowest position, and the elastic force of the compressed spring is balanced with the weight of the labeling bracket; b. When the product packaging box moves toward the labeling station, it first contacts the height adjustment plate. As the product packaging box moves, the arc-shaped height adjustment plate is slowly lifted, thereby lifting the labeling component, so that the product packaging box enters the labeling station and is located below the labeling component; c. After the first infrared detector of the labeling station senses that the product packaging box has entered the labeling station, the labeling cylinder drives the labeling bracket to move downward, the pressing plate is attached to the upper surface of the product packaging box, the recycling motor drives the recycling shaft to rotate, drives the auxiliary belt to move, and the label on the auxiliary belt is attached to the upper surface of the product packaging box; d. The labeling cylinder drives the labeling bracket to move upward, and the product packaging box moves toward the flipping station; 3) Turning over: After labeling, the product packaging box is moved to the turning station and the product packaging box is turned over manually; 4) Label inspection: The turned-over product packaging box moves to the label inspection station, and the camera takes a picture of the upper surface of the product packaging box and sends the captured image to the image processing unit, which is used to detect whether there is a label on the received image; if there is no label, it proves that the product packaging box has been turned over and is qualified; if there is a label, it proves that the product packaging box has not been turned over and is unqualified. The push rod pushes the unqualified product packaging box into the conveyor belt to continue to inspect the next product packaging box; 5) Secondary irradiation: After passing the inspection, the product packaging boxes will be put back into the irradiation room for secondary irradiation disinfection.

5. The method for preventing mistakes and omissions during irradiation disinfection and sterilization as claimed in claim 4, Features: In the step 4), the unqualified product packaging boxes on the conveyor belt are manually turned over and put back on the conveyor line for secondary label inspection. After the label inspection is qualified, they are sent to the irradiation room for secondary irradiation disinfection.

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