An appearance detection device for packaging boxes

Abstract

The present invention belongs to the technical field of detection equipment, and specifically relates to an appearance detection device for packaging boxes, which includes a cabinet, a vertical frame, and a conveying mechanism. A film opening assembly is installed at one end of the conveying mechanism, a transfer mechanism is installed at the top of the vertical frame, a suction assembly is provided at the output end of the transfer mechanism, and a vision detection mechanism is provided on one side of the vertical frame; the film opening assembly includes a base and a hot cutting knife. The hot cutting knife is fixed on the upper surface of the base, and the base is fixed between the two inner walls of the conveying mechanism. Double-axis cylinders with upward output ends are fixed on both sides of the lower surface of the base, and the output ends of the double-axis cylinders are fixed with a first vacuum adsorption seat. When there are defects, the suction assembly fixes the film-covered packaging box, the first vacuum adsorption seat adsorbs the film layer at the bottom of the film-covered packaging box, the double-axis cylinder drives the first vacuum adsorption seat to move downward, so that the film layer approaches the blade tip of the hot cutting knife, thereby softening and cracking the film layer, and then the film is removed by means of the suction assembly, realizing fast and non-destructive film tearing.

Description

Technical Field

[0001] The present invention belongs to the technical field of detection equipment, and specifically relates to a packaging box appearance detection device. Background Art

[0002] In the product packaging industry, after all products are loaded into packaging boxes, the packaging boxes need to be laminated to improve the durability and anti-damage ability of the packaging. Through the selection of different film materials, the lamination process endows the packaging with diverse visual effects and tactile sensations.

[0003] Quality inspection and defect handling of finished packaging are crucial steps. Therefore, the laminated packaging boxes need to be inspected for key indicators such as lamination defects (such as incomplete lamination, air bubbles, wrinkles, edge warping, foreign matter inclusion, etc.) and printing accuracy, and defective products need to be stripped and reworked.

[0004] Currently, this process relies on manual operation, resulting in problems such as low detection efficiency and high missed detection rate. Manual film stripping depends on experience to judge the peeling angle and strength. If the strength is too high, it is easy to damage the packaging box and increase the rework cost. Summary of the Invention

[0005] The purpose of the present invention is to provide a packaging box appearance detection device that can automatically detect the laminated packaging boxes from multiple angles and automatically strip the defective finished packaging, effectively improving work efficiency and product quality.

[0006] To solve the above technical problems, the present invention provides a packaging box appearance detection device, including a cabinet, a vertical frame, and a conveying mechanism all installed on the cabinet; one end of the conveying mechanism is installed with a film opening component, the top of the vertical frame is installed with a transfer mechanism, the output end of the transfer mechanism is fixed with a suction component facing the film opening component, and one side of the vertical frame is installed with a vision detection mechanism facing the suction component; the film opening component includes a base and a hot cutting knife, the hot cutting knife is fixed in the middle of the upper surface of the base, the base is fixed between the two inner walls of the conveying mechanism, both sides of the lower surface of the base are fixed with double-axis cylinders with the output ends facing upward, the output ends of the double-axis cylinders are fixed with a first vacuum adsorption seat, the adsorption plane of the first vacuum adsorption seat is lower than the conveying plane of the conveying mechanism, and the tip of the hot cutting knife is lower than the adsorption plane of the first vacuum adsorption seat.

[0007] Preferably, the suction component includes a chassis fixedly connected to the output end of the transfer mechanism, a third vacuum adsorption seat is fixed in the middle of the lower surface of the chassis, guide rod cylinders with the output ends facing downward are fixed on both sides of the upper surface of the chassis, the output ends of the guide rod cylinders are fixed with a bidirectional sliding table cylinder, both output ends of the bidirectional sliding table cylinder are fixed with mounting seats, and a second vacuum adsorption seat is fixed on one side of the mounting seat.

[0008] Preferably, the chassis is fixedly connected to the third vacuum adsorption seat through a tensile sensor.

[0009] Preferably, the conveying mechanism includes a second conveyor installed in the cabinet, the film opening assembly is installed at one end of the second conveyor, a first conveyor is erected on the top of the other end of the second conveyor, and handling mechanisms are installed on both sides of the top of the second conveyor near the first conveyor, and the two handling mechanisms are arranged oppositely.

[0010] Preferably, the handling mechanism includes a rotary cylinder fixed on the top of the second conveyor, a swing arm is fixed at the output end of the rotary cylinder, a pen-shaped cylinder is fixed at the end of the swing arm, and a rubber seat is fixed at the output end of the pen-shaped cylinder.

[0011] Preferably, the transfer mechanism includes a first electric cylinder slide horizontally installed on the top of the vertical frame, a second electric cylinder slide is vertically installed on the first slider of the first electric cylinder slide, a servo motor is installed on the second slider of the second electric cylinder slide, the motor shaft of the servo motor is connected to a fixed long rod through a coupling, and one end of the fixed long rod is fixedly connected to the suction assembly.

[0012] Preferably, a guide sleeve is provided on one side of the bottom of the second electric cylinder slide, and the fixed long rod passes through the guide sleeve.

[0013] Preferably, the vision detection mechanism includes a vertical rod installed in the cabinet, an industrial camera is installed on the vertical rod, and a strip light source adapted to the industrial camera is installed on one side of the vertical frame.

[0014] Preferably, a collection box is installed on one side of the vertical frame.

[0015] After adopting the above technical solution, the beneficial effects of the present invention are:

[0016] The vision detection mechanism performs multi-angle detection on the film-covered packaging box grabbed by the suction assembly. When there are defects, the suction assembly first fixes the film-covered packaging box, the first vacuum adsorption seat adsorbs the film layer at the bottom of the film-covered packaging box, the double-axis cylinder drives the first vacuum adsorption seat to move downwards, so that the film layer approaches the tip of the hot cutting knife, thereby softening and cracking the film layer, and then the film is removed by means of the suction assembly, realizing fast and non-destructive film tearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 is a schematic diagram of the structure of the conveying mechanism;

[0020] Figure 3 is a schematic diagram of the structure of the film opening assembly;

[0021] Figure 4 is a schematic diagram of the structure of the suction assembly;

[0022] Figure 5 is a schematic diagram of the structure of the handling mechanism;

[0023] Figure 6 is a schematic diagram of the structure of the transfer mechanism;

[0024] Figure 7 is a schematic diagram of the structure of the vision inspection mechanism.

[0025] Reference numerals: 1 - vertical frame, 2 - vision inspection mechanism, 3 - handling mechanism, 4 - conveying mechanism, 5 - film opening assembly, 6 - transfer mechanism, 7 - suction assembly, 8 - fixed long rod, 9 - first conveyor, 10 - second conveyor, 11 - base, 12 - guide rod, 13 - spring, 14 - double - acting cylinder, 15 - hot cutting knife, 16 - first vacuum adsorption seat, 17 - mounting seat, 18 - double - acting slide cylinder, 19 - second vacuum adsorption seat, 20 - third vacuum adsorption seat, 21 - chassis, 22 - guide rod cylinder, 23 - rotary cylinder, 24 - swing arm, 25 - rubber seat, 26 - pen - shaped cylinder, 27 - first electric cylinder slide, 28 - second electric cylinder slide, 29 - second slider, 30 - servo motor, 31 - guide sleeve, 32 - first slider, 33 - vertical rod, 34 - industrial camera, 35 - strip light source, 36 - collection box. Detailed Description of the Invention

[0026] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present invention and are not configured to limit the present invention. For those skilled in the art, the present invention can be implemented without some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by showing examples of the present invention.

[0027] The orientation terms used in the following description are all the directions shown in the figures, and do not limit the specific structure of the present invention. In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be directly connected or indirectly connected. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] As Figure 1 and Figure 7 shown, the appearance detection device for the packaging box includes a cabinet (not shown) and a vertical frame 1, a vision detection mechanism 2, a conveying mechanism 4, a film opening assembly 5, a transfer mechanism 6 and a suction assembly 7 integrated thereon, forming a collaborative operation system for detection, film tearing and rework. A collection box 36 is installed on one side of the vertical frame 1 for collecting the processed coated film. The side of the collection box 36 near the conveying mechanism 4 is high to prevent the coated film from falling to other positions, and the side far from the conveying mechanism 4 is low to facilitate manual collection and processing of the coated film.

[0029] As Figure 2 shown, the second conveyor 10 is the main part of the conveying mechanism 4 and is responsible for inputting the coated film packaging box to be detected. The film opening assembly 5 is installed at one end of the second conveyor 10 for performing film opening treatment on the coated film on the packaging box. The first conveyor 9 is installed on the top of the other end of the second conveyor 10 for receiving the packaging box after film opening treatment and conveying it to the next process or collection area. On both sides of the top of the second conveyor 10, a set of handling mechanisms 3 are installed, and these two sets of handling mechanisms 3 are arranged oppositely and close to the end of the first conveyor 9.

[0030] As Figure 5 shown, the handling mechanism 3 includes a rotary cylinder 23 and a swing arm 24. The rotary cylinder 23 is fixed on the top of the second conveyor 10, and one end of the swing arm 24 is fixedly connected to the output end of the rotary cylinder 23 and swings with the rotation of the rotary cylinder 23. A pen-shaped cylinder 26 is fixed at the other end of the swing arm 24. A rubber seat 25 is fixed at the output end of the pen-shaped cylinder 26 as the component in direct contact with the packaging box.

[0031] As Figure 3 shown, the film opening assembly 5 includes a base 11 and a hot cutting knife 15. The base 11 is fixed between the two inner walls of the second conveyor 10, providing a stable installation foundation for the entire assembly. The hot cutting knife 15 is fixed in the middle of the upper surface of the base 11 and is aligned with the length direction of the packaging box. When opening the film, the hot cutting knife 15 melts along the long axis (i.e., the length direction) of the packaging box, reducing damage to the packaging box caused by improper film opening and facilitating the next step of film tearing treatment.

[0032] On both sides of the lower surface of the base 11, double-acting cylinders 14 with their output ends facing upward are fixed. The output ends of the double-acting cylinders 14 are fixed with first vacuum adsorption seats 16. On both sides of the lower surface of the first vacuum adsorption seats 16, guide rods 12 passing through the base 11 are fixed. Springs 13 are sleeved on the guide rods 12 and abut between the first vacuum adsorption seats 16 and the base 11.

[0033] The adsorption plane of the first vacuum adsorption seat 16 is 2 mm lower than the conveying plane of the conveying mechanism 4, ensuring that the film-covered packaging box can pass smoothly during conveying without being blocked by the first vacuum adsorption seat 16. The tip of the hot cutting knife 15 is 2 mm lower than the adsorption plane of the first vacuum adsorption seat 16, preventing the hot cutting knife 15 from coming into contact with the film on the film-covered packaging box in advance.

[0034] As Figure 6 shown, the transfer mechanism 6 consists of an electric cylinder slide and a servo motor 30, providing precise position and angle control. The first electric cylinder slide 27 is horizontally installed on the top of the vertical frame 1, driving the first slider 32 thereon to move along the horizontal track. The second electric cylinder slide 28 is installed on the first slider 32, driving the second slider 29 thereon to move along the track perpendicular to the first electric cylinder slide 27. Driven by the first electric cylinder slide 27, the second electric cylinder slide 28 shuttles between the film opening assembly 5 and the collection box 36, putting the peeled film into the collection box 36.

[0035] The servo motor 30 is installed on the second slider 29. The motor shaft of the servo motor 30 is connected with a fixed long rod 8 through a coupling. One end of the fixed long rod 8 is fixedly connected with the suction assembly 7. The second electric cylinder slide 28 drives the servo motor 30 to complete the Z-axis lifting. The servo motor 30 drives the fixed long rod 8 to rotate through the coupling, realizing the pose adjustment of the film-covered packaging box for multi-angle detection by the vision detection mechanism 2.

[0036] On one side of the bottom of the second electric cylinder slide 28, a guide sleeve 31 is provided. The fixed long rod 8 passes through the guide sleeve 31. The guide sleeve 31 provides guidance and support for the fixed long rod 8, ensuring that the fixed long rod 8 can move smoothly along the predetermined path and avoiding deviation or shaking.

[0037] As Figure 4 shown, the suction assembly 7 includes a chassis 21 fixedly connected with the fixed long rod 8. By driving the suction assembly 7 to rotate through the servo motor 30, the pose adjustment of the film-covered packaging box is realized, presenting the best detection angle to the vision detection mechanism 2. In the middle of the lower surface of the chassis 21, a tension sensor is fixed. The end of the tension sensor is fixedly connected with the third vacuum adsorption seat 20, enabling the measurement of the weight of the film-covered packaging box for convenient rejection of defective products.

[0038] On both sides of the top of the chassis 21, guide rod cylinders 22 with their output ends facing down are fixed. The output end of the guide rod cylinder 22 is fixed with a double-acting slide cylinder 18. As the guide rod cylinder 22 expands and contracts, the double-acting slide cylinder 18 can move in the vertical direction to adapt to film-covered packaging boxes of different heights.

[0039] Both output ends of the double-acting slide cylinder 18 are fixed with mounting seats 17, and on one side of the mounting seat 17, a second vacuum adsorption seat 19 is fixed. As the double-acting slide cylinder 18 expands, contracts and moves, the mounting seat 17 can drive the second vacuum adsorption seat 19 to move flexibly in the width direction of the packaging box, facilitating film tearing treatment.

[0040] After the suction assembly 7 adsorbs the film-covered packaging box, the second electric cylinder slide 28 is responsible for lifting it to a predetermined height, marked as the detection area, to ensure that the film-covered packaging box is within the best capture range of the vision detection mechanism 2.

[0041] As Figure 7 shown, the vision detection mechanism 2 includes a vertical rod 33 installed on the cabinet. Two industrial cameras 34 are installed on the vertical rod 33 through clamp universal seats to allow flexible adjustment of the angles and positions of the industrial cameras 34. One of the industrial cameras 34 is obliquely oriented above the detection area, enabling the camera to capture details (such as film integrity, labels, printed patterns, etc.) on the top and the side (the side facing the vision detection mechanism 2) of the film-covered packaging box. The other industrial camera 34 is obliquely oriented below the detection area, enabling the camera to capture details on the bottom and the side of the film-covered packaging box. The upper and lower oblique layouts ensure that all key parts of the film-covered packaging box can be effectively detected, thereby improving the accuracy and reliability of the detection.

[0042] On one side of the vertical frame 1, two strip light sources 35 adapted to the industrial cameras 34 are installed. One of the strip light sources 35 obliquely irradiates above the detection area, and the other strip light source 35 obliquely irradiates below the detection area. The strip light sources 35 provide uniform and sufficient illumination, reducing the influence of shadows and reflections, highlighting the detailed features of the film-covered packaging box, enabling the industrial cameras 34 to capture high-quality images of the film-covered packaging box, which helps improve the accuracy and reliability of image processing.

[0043] The film-coated packaging box first flows out of the film laminating machine and then is sent to the second conveyor 10. The film-coated packaging box moves forward on the second conveyor 10 along a predetermined path. When the film-coated packaging box flows through the first sensor (located at the starting end of the second conveyor 10), the second conveyor 10 jogs (by controlling a button or a program to make the conveyor run briefly for a short distance or complete a short action). When the second sensor (installed on the second conveyor 10 and on the side of the film-opening assembly 5) detects the film-coated packaging box, the control system sends a stop command to the second conveyor 10. The control system automatically analyzes the lateral movement distance and the descending height of the suction assembly 7 based on the image captured by the vision detection mechanism 2. The second electric cylinder slide 28 drives the servo motor 30 to descend to the set height, and the third vacuum adsorption seat 20 adsorbs the film-coated packaging box. Subsequently, the second electric cylinder slide 28 lifts the film-coated packaging box to the detection area, and the two-station industrial camera 34 starts taking pictures. At the same time, the servo motor 30 starts and drives the film-coated packaging box to rotate through the fixed long rod 8 to ensure the complete inspection of all six sides and eight corners of the appearance of the film-coated packaging box. The control system processes and analyzes the acquired image to determine whether there are appearance defects in the film-coated packaging box, such as incomplete film lamination, label errors, etc.

[0044] When there are appearance defects such as inkjet printing and labels on the film-coated packaging box, after the vision detection mechanism 2 finishes taking pictures, the second electric cylinder slide 28 descends, the third vacuum adsorption seat 20 releases the film-coated packaging box, and the second conveyor 10 starts to let the current film-coated packaging box pass. When the third sensor at the handling mechanism 3 detects the flow of the film-coated packaging box, the pen-shaped cylinders 26 on both sides start simultaneously, and their output ends extend forward to push the rubber seat 25 to closely fit and clamp the film-coated packaging box. After clamping the film-coated packaging box, the rotary cylinders 23 on both sides will start simultaneously. The rotation of the rotary cylinder 23 will drive the swing arm 24 and the clamped film-coated packaging box to rotate above the first conveyor 9. Finally, the pen-shaped cylinder 26 retracts to release the film-coated packaging box, allowing it to smoothly fall onto the first conveyor 9, and the rotary cylinder 23 drives the swing arm 24 to reset.

[0045] When there are surface quality appearance defects such as incomplete film covering or bulging on the film-covered packaging box, after taking pictures, the second electric cylinder slide 28 descends, and the film-covered packaging box falls back onto the second conveyor 10, while the third vacuum adsorption seat 20 remains in the adsorption state. The bidirectional slide cylinder 18 contracts, pulling the second vacuum adsorption seat 19 to closely fit and clamp the film-covered packaging box. The double-axis cylinders 14 on both sides of the base 11 simultaneously push the first vacuum adsorption seat 16 upward until its adsorption surface closely fits the bottom of the film-covered packaging box. The first vacuum adsorption seat 16 is activated to adsorb the film layer at the bottom of the packaging box. The double-axis cylinder 14 pulls the first vacuum adsorption seat 16 downward, and at this time, the adsorbed film layer starts to separate from the outer surface of the packaging box. As the first vacuum adsorption seat 16 descends, the dragged film layer comes into contact with the tip of the hot cutting knife 15, causing the film layer to melt and break. Subsequently, the first vacuum adsorption seat 16 and the double-axis cylinder 14 stop operating, and the bidirectional slide cylinder 18 and the second vacuum adsorption seat 19 are activated. The bidirectional slide cylinder 18 pushes the second vacuum adsorption seats 19 on both sides to move outward. Under the adsorption of the second vacuum adsorption seats 19, the film layers on both sides of the film-covered packaging box separate along the fused opening to both sides. Subsequently, the second electric cylinder slide 28 ascends, and at the same time, the servo motor 30 drives the base 11 to rotate 90 degrees to make it easier to remove the film layer. After the wrapped film layer is removed, driven by the first electric cylinder slide 27, the removed film layer is moved above the collection box 36. Finally, the third vacuum adsorption seat 20 stops adsorption, and at this time, the removed film layer naturally falls into the collection box 36, completing the film tearing process. After the film tearing process, the second conveyor 10 is activated, and the processed packaging box is sent into the first conveyor 9 by the handling mechanism 3.

[0046] During the process of the third vacuum adsorption seat 20 adsorbing and lifting the film-covered packaging box, the tension sensor will be subjected to a tensile force, which includes the weight of the third vacuum adsorption seat 20 itself and the weight of the film-covered packaging box. By pre-measuring and recording the weight of the third vacuum adsorption seat 20 and then subtracting this value from the reading of the tension sensor, the actual weight of the film-covered packaging box can be indirectly obtained. The measured weight is compared with the pre-input finished product weight range in the control system to determine whether there are quality defects in the film-covered packaging box.

[0047] If the weight is within this range, it is considered that the weight of the film-covered packaging box is qualified. If the weight is not within this range, it indicates that there are too many or too few items inside the film-covered packaging box. For the film-covered packaging box with too many items, and if the visual inspection mechanism 2 does not find any appearance or film covering defects on the film-covered packaging box, no additional measures will be taken, and the film-covered packaging box will be released after the inspection. For the film-covered packaging box with too few items, the same treatment measures as those for appearance defects will be taken, and the film will be torn and sorted.

[0048] In accordance with the embodiments of the present invention as described above, these embodiments do not describe all the details in detail, nor do they limit the invention to only the specific embodiments. Obviously, according to the above description, many modifications and variations can be made. The present specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can make good use of the present invention and its modified use based on the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An appearance detection device for a packaging box, comprising a cabinet, and a vertical frame (1) and a conveying mechanism (4) both installed on the cabinet; characterized in that: One end of the conveying mechanism (4) is equipped with a film opening assembly (5). A transfer mechanism (6) is installed at the top of the vertical frame (1). The output end of the transfer mechanism (6) is fixed with a suction assembly (7) facing the film opening assembly (5). A vision detection mechanism (2) facing the suction assembly (7) is installed on one side of the vertical frame (1); the film opening assembly (5) includes a base (11) and a hot cutting knife (15). The hot cutting knife (15) is fixed in the middle of the upper surface of the base (11). The base (11) is fixed between the two inner walls of the conveying mechanism (4). On both sides of the lower surface of the base (11), double-acting cylinders (14) with upward output ends are fixed. The output ends of the double-acting cylinders (14) are fixed with first vacuum adsorption seats (16). The adsorption plane of the first vacuum adsorption seat (16) is lower than the conveying plane of the conveying mechanism (4). The tip of the hot cutting knife (15) is lower than the adsorption plane of the first vacuum adsorption seat (16). The suction assembly (7) includes a chassis (21) fixedly connected to the output end of the transfer mechanism (6). A third vacuum adsorption seat (20) is fixed in the middle of the lower surface of the chassis (21). Guide rod cylinders (22) with downward output ends are fixed on both sides of the upper surface of the chassis (21). The output ends of the guide rod cylinders (22) are fixed with double-acting slide cylinders (18). Both output ends of the double-acting slide cylinders (18) are fixed with mounting seats (17). A second vacuum adsorption seat (19) is fixed on one side of the mounting seat (17).

2. The appearance detection device for the packaging box according to claim 1, wherein: The chassis (21) is fixedly connected to the third vacuum adsorption seat (20) through a tension sensor.

3. The packaging box appearance detection device according to claim 1, characterized in that: The conveying mechanism (4) includes a second conveyor (10) installed in the cabinet. The film opening assembly (5) is installed at one end of the second conveyor (10). A first conveyor (9) is erected at the top of the other end of the second conveyor (10). Handling mechanisms (3) are installed on both sides of the top of the second conveyor (10) close to the first conveyor (9). The two groups of handling mechanisms (3) are arranged oppositely.

4. The packaging box appearance detection device according to claim 3, wherein: The handling mechanism (3) includes a rotary cylinder (23) fixed on the top of the second conveyor (10). The output end of the rotary cylinder (23) is fixed with a swing arm (24). A pen-shaped cylinder (26) is fixed at the end of the swing arm (24). The output end of the pen-shaped cylinder (26) is fixed with a rubber seat (25).

5. The packaging box appearance detection device according to claim 1, characterized in that: The transfer mechanism (6) includes a first electric cylinder slide (27) horizontally installed on the top of the vertical frame (1). A second electric cylinder slide (28) is vertically installed on the first slider (32) of the first electric cylinder slide (27). A servo motor (30) is installed on the second slider (29) of the second electric cylinder slide (28). The motor shaft of the servo motor (30) is connected to a fixed long rod (8) through a coupling. One end of the fixed long rod (8) is fixedly connected to the suction assembly (7).

6. The packaging box appearance detection device according to claim 5, wherein: A guide sleeve (31) is provided on one side of the bottom of the second electric cylinder slide (28). The fixed long rod (8) passes through the guide sleeve (31).

7. The packaging box appearance detection device according to claim 1, characterized in that: The visual inspection mechanism (2) includes a vertical rod (33) installed on the cabinet, an industrial camera (34) is installed on the vertical rod (33), and a strip light source (35) adapted to the industrial camera (34) is installed on one side of the upright frame (1).

8. The packaging box appearance detection device according to claim 1, characterized in that: A collection box (36) is installed on one side of the upright frame (1).

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