Visual inspection device for carton paper packaging quality of cigarette packaging machine

By designing a visual inspection device that simulates the bending process and incorporates adaptive adjustments for angle and distance, the problem of existing devices being unable to detect defects in bent carton paper has been solved. This enables comprehensive and accurate inspection of bent carton paper, improving inspection efficiency and accuracy.

CN121201481APending Publication Date: 2025-12-26GUANG XI ZHEN LONG COLOR PRINTING & PACKING CO LTD
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Patent Information

Application Number
CN202511699795.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-19
Publication Date
2025-12-26

AI Technical Summary

Technical Problem

Existing cigarette packaging quality inspection equipment cannot effectively detect defects in bent carton paper, and the equipment cannot adapt to the complex shape of bent carton paper, resulting in incomplete and inaccurate inspection.

Method used

A visual inspection device for the quality of cigarette packaging carton paper was designed, including a conveying platform, a folding structure, a rotating structure, and a visual inspection structure. By simulating the bending process of the carton paper and combining adaptive adjustments of angle and distance, a comprehensive inspection of the bent carton paper can be achieved.

Benefits of technology

It enables comprehensive and accurate inspection of bent carton paper, covering the blind spots of existing equipment, ensuring efficient and accurate defect identification and rejection, and improving packaging quality control capabilities.

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Abstract

The invention discloses a visual detection device for carton paper packaging quality of a cigarette packaging machine, and belongs to the technical field of cigarette processing, the visual detection device comprises a mounting outer frame, and a horizontally arranged conveying platform is arranged in the middle of the interior of the mounting outer frame; a middle adsorption structure for adsorbing and fixing the carton paper is arranged in the middle of the conveying platform; the two sides of the middle adsorption structure are each provided with a carton paper folding structure used for bending carton paper. Each carton paper folding structure is provided with a detection rotating structure; and two visual detection structures for detecting the packaging quality of the carton paper are arranged at the positions, located below the two carton paper folding structures, in the mounting outer frame. The carton paper bending forming device can simulate the bending forming process of carton paper in actual packaging, a detection object is changed into formed carton paper from plane carton paper, the forming defects such as creases, edge breakage and white exposure possibly occurring after the carton paper is bent can be effectively detected, and the detection blind area of an existing device is covered.
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Description

Technical Field

[0001] This invention belongs to the field of cigarette processing technology, and in particular relates to a visual inspection device for the quality of cigarette packaging carton paper packaging in a cigarette packaging machine. Background Technology

[0002] With the continuous expansion of the global cigarette market and the growth of consumer demand, the cigarette industry is becoming increasingly large. Consumers have higher and higher requirements for the quality of cigarette packaging. During the production process, cigarette cartons may have various appearance defects such as wrinkled, torn, or missing transparent paper, exposed or turned-out box paper, and incorrect printing of the main logo. In order to prevent defective cartons of cigarettes from entering the market and affecting brand image and consumer experience, efficient and accurate testing devices are needed to control packaging quality.

[0003] Currently, existing packaging quality inspection devices have two limitations that can lead to incomplete inspections: First, the inspection targets are mostly strips of paper that have not been bent or folded, which cannot cover defects that may occur after the paper has been formed; second, the position of the inspection equipment is fixed and cannot be adapted to the shape of the paper after bending, making it difficult to effectively inspect the key areas after bending. Summary of the Invention

[0004] This invention provides a visual inspection device for the quality of cigarette packaging carton paper packaging in a cigarette packaging machine, in order to solve the problems in the prior art.

[0005] The present invention adopts the following technical solution: a visual inspection device for the quality of cigarette packaging carton paper, comprising an outer frame, a horizontally arranged conveying platform at the middle position inside the outer frame; an intermediate adsorption structure for adsorbing and fixing the carton paper at the middle position on the conveying platform; carton paper folding structures for bending the carton paper on both sides of the intermediate adsorption structure, both of the two carton paper folding structures being rotatably connected to the conveying platform; each carton paper folding structure having a detection rotation structure; and two visual inspection structures for inspecting the quality of the carton paper packaging located below the two carton paper folding structures inside the outer frame.

[0006] In a further technical solution, the middle position of the conveying platform is a flat plate, and the two ends of the conveying platform are horizontally arranged conveyor belts.

[0007] In a further technical solution, the intermediate adsorption structure includes several intermediate vacuum adsorption disks arranged at equal intervals on the plate, with the adsorption ends of the intermediate vacuum adsorption disks facing upwards.

[0008] A further technical solution is that each of the paper box folding structures includes a flipping frame plate, a flipping motor, a first gear and a second gear. The flipping motor is located inside the conveying platform. The first gear is connected to the main shaft of the flipping motor. The flipping frame plate is provided with a horizontally arranged flipping shaft. Placement slots are provided on both sides of the plate. The flipping frame plate is rotatably connected to the placement slots through the flipping shaft. The second gear is located on the flipping shaft and meshes with the first gear. The flipping frame plate is provided with a detection through slot.

[0009] A further technical solution includes a rotating detection structure comprising a rotating motor, a first pulley, a second pulley, and two rotating vacuum adsorption disks. The first and second pulleys are each equipped with a rotating shaft. The flip frame has an mounting groove. The first and second pulleys are rotatably connected to the mounting groove via the two rotating shafts. Belts are fitted onto the first and second pulleys. The rotating motor is located at the bottom of the flip frame and is connected to the rotating shaft on the first pulley. The two rotating vacuum adsorption disks are respectively connected to the tops of the two rotating shafts and are rotatably connected to the top of the flip frame.

[0010] In a further technical solution, the visual detection structure includes a visual detection module, a detection angle adjustment component, and a detection horizontal movement component, wherein the detection horizontal movement component is located on the detection angle adjustment component, and the visual detection module is located on the detection horizontal movement component.

[0011] A further technical solution is provided, wherein the detection angle adjustment component includes a mounting box, an adjustment motor, an adjustment screw shaft, an adjustment block, an adjustment plate, and two connecting plates. The mounting box is located inside the mounting frame. The adjustment screw shaft is rotatably connected to the mounting box. The adjustment motor is located on the outer wall of the mounting box and is drively connected to the adjustment screw shaft. The adjustment screw shaft is threadedly connected to the adjustment block, and the bottom of the adjustment block is slidably fitted with the inner bottom of the mounting box. The front end of the adjustment plate is hinged to the mounting box. The bottoms of the two connecting plates are respectively hinged to both ends of the adjustment block, and the tops of the two connecting plates are respectively hinged to the inner top of the adjustment plate.

[0012] In a further technical solution, the detection horizontal moving component includes a moving motor, a moving block, and a moving lead screw shaft. The adjustment plate is provided with a moving groove. The moving motor is located on the outer wall of the adjustment plate. The moving lead screw shaft is rotatably connected to the adjustment plate and is drivenly connected to the main shaft of the moving motor. The moving block is slidably connected in the moving groove. The moving block is threadedly connected to the moving lead screw shaft. The vision detection module is installed on the top of the moving block.

[0013] The above-described at least one technical solution adopted in the embodiments of the present invention can achieve the following beneficial effects: Firstly, this invention can simulate the bending and forming process of carton paper in actual packaging, changing the detection object from flat carton paper to formed carton paper. It can effectively detect forming defects such as creases, wrinkles, edge damage, and exposed white areas that may occur after the carton paper is bent, covering the detection blind spots of existing devices.

[0014] Secondly, this invention, through multiple functions of angle adaptation adjustment, distance adaptation adjustment, and displacement compensation deviation, forms a closed-loop synergy with the folding and rotating structures, completely solving the core limitation of existing equipment that has a fixed position and cannot adapt to complex shapes after bending. This upgrades visual inspection from static single inspection to dynamic adaptive inspection, ultimately achieving comprehensive and accurate control over the quality of carton paper packaging. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a side view of the present invention; Figure 3 This is a three-dimensional structural diagram of the conveying platform and intermediate adsorption structure in this invention; Figure 4 This is a three-dimensional structural diagram of the paper box folding structure in this invention; Figure 5 This is a three-dimensional structural diagram of the rotating detection structure in this invention; Figure 6 This is a three-dimensional structural diagram of the visual detection structure in this invention; Figure 7 This is a three-dimensional structural diagram of the detection angle adjustment component in this invention; Figure 8 This is a three-dimensional structural diagram of the detection horizontal movement component in this invention; Figure label: Install outer frame 1; Conveying platform 2, flat plate 21, conveyor belt 22, placement trough 23; Intermediate adsorption structure 3, intermediate vacuum adsorption disk 31; The paper box folding structure 4, the flipping frame plate 41, the flipping motor 42, the first gear 43, the second gear 44, the flipping shaft 45, and the detection through groove 46; The detection components include: rotating structure 5, rotating motor 51, first pulley 52, second pulley 53, rotating vacuum adsorption disk 54, rotating shaft 55, and belt 56. The visual inspection structure 6, visual inspection module 60, inspection angle adjustment component 61, mounting box 611, adjustment motor 612, adjustment lead screw shaft 613, adjustment block 614, adjustment plate 615, connecting plate 616, moving groove 617, inspection horizontal moving component 62, moving motor 621, moving block 622, moving lead screw shaft 623. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0017] The following, in conjunction with the accompanying drawings, details the technical solution of a visual inspection device for the quality of cigarette packaging carton paper packaging in various embodiments of the present invention.

[0018] Reference Figures 1 to 8 As shown, this embodiment of the invention provides a visual inspection device for the quality of cigarette packaging carton paper, including an outer frame 1. A horizontally positioned conveying platform 2 is located at the center of the inner frame 1. An intermediate adsorption structure 3 for adsorbing and fixing the carton paper is located at the center of the conveying platform 2. Carton paper folding structures 4 for bending the carton paper are located on both sides of the intermediate adsorption structure 3, and both folding structures 4 are rotatably connected to the conveying platform 2. Each folding structure 4 is equipped with a detection rotation structure 5. Two visual inspection structures 6 are located below the two folding structures 4 inside the outer frame 1 for inspecting the quality of the carton paper packaging.

[0019] In this embodiment, the middle position of the conveying platform 2 is a flat plate 21, and the two ends of the conveying platform 2 are horizontally arranged conveyor belts 22; the intermediate adsorption structure 3 includes a plurality of intermediate vacuum adsorption disks 31 arranged at equal intervals on the flat plate 21, and the adsorption end of the intermediate vacuum adsorption disks 31 is arranged upward.

[0020] The strip box paper to be tested is conveyed to the middle plate 21 area by the conveyor belts 22 at both ends of the conveyor platform 2. Several middle vacuum adsorption disks 31 of the middle adsorption structure 3 are activated, generating an upward adsorption force to fix the strip box paper flat on the plate 21, so as to prevent the strip box paper from shifting during the testing process.

[0021] Vacuum adsorption fixation ensures that the position of the carton paper remains consistent throughout the inspection process, eliminating inspection errors and image blurring caused by workpiece movement, thus laying the foundation for high-precision visual inspection.

[0022] The central flat plate 21 provides a reaction force fulcrum for the folding operation, enabling the carton paper folding structure 4 to perform stable and controllable bending actions, thus preventing the workpiece from shifting or deforming under stress.

[0023] In this embodiment, each of the paper box folding structures 4 includes a flipping frame plate 41, a flipping motor 42, a first gear 43, and a second gear 44. The flipping motor 42 is located inside the conveying platform 2. The first gear 43 is connected to the main shaft of the flipping motor 42. The flipping frame plate 41 is provided with a horizontally arranged flipping shaft 45. The two sides of the flat plate 21 are provided with placement slots 23. The flipping frame plate 41 is rotatably connected to the placement slots 23 through the flipping shaft 45. The second gear 44 is located on the flipping shaft 45 and meshes with the first gear 43. The flipping frame plate 41 is provided with a detection through slot 46.

[0024] In this embodiment, the detection rotation structure 5 includes a rotary motor 51, a first pulley 52, a second pulley 53, and two rotating vacuum adsorption disks 54. The first pulley 52 and the second pulley 53 are respectively provided with rotating shafts 55. The flip frame plate 41 is provided with a mounting groove. The first pulley 52 and the second pulley 53 are rotatably connected to the mounting groove through the two rotating shafts 55. The first pulley 52 and the second pulley 53 are fitted with belts 56. The rotary motor 51 is located at the bottom of the flip frame plate 41 and is connected to the rotating shaft 55 on the first pulley 52. ​​The two rotating vacuum adsorption disks 54 are respectively connected to the top of the two rotating shafts 55 and are rotatably connected to the top of the flip frame plate 41.

[0025] The flip motor 42 and the rotary motor 51 in this patent application are prior art, and are equipped with a matching control system. During operation, the flip motor 42 and the rotary motor 51 can be given running commands by operating the control system. When the carton paper is located on the flat plate 21 of the conveying platform 2, the two ends of the carton paper are respectively adsorbed and fixed by the corresponding rotating vacuum adsorption disks 54; When the carton is flipped, the rotary motor 51 drives the first gear 43 to rotate, which in turn drives the second gear 44 to rotate, causing the flipping shaft 45 to rotate on the flat plate 21. The rotation of the flipping shaft 45 will cause the position of the flipping frame plate 41 to rotate, thereby causing the carton paper to flip upward. This action accurately simulates the process of bending and binding the two sides of the carton paper on the packaging machine. During or after the folding action, the rotary motor 51 starts and rotates through the first pulley 52, which in turn drives the second pulley 53 to rotate through the belt 56. This causes the two rotating shafts 55 to rotate, which in turn causes the two rotating vacuum adsorption disks 54 and the sides of the strip paper they adsorb to rotate slightly in sync. This allows the side being inspected to present different angles and causes the strip paper to rotate and deform. During inspection, by bending and folding the carton paper and causing rotational deformation, different sides and angles of the carton paper can be sequentially aligned with the vision inspection module 60. With the adjustment of the angle and position of the vision inspection module 60, it is ensured that the inner / outer side of the crease, the upper / lower edge of the edge, and different areas of the printed pattern can all be clearly captured, avoiding missed detections due to a fixed viewing angle. When the rotating vacuum suction plate 54 drives the side of the carton paper to rotate, it will generate slight tensile or torsional stress on the carton paper, simulating the stress state in the actual packaging process. This allows these hidden defects to be exposed in advance during the inspection stage. For example, small warping will become more obvious due to increased force during rotation, and thus be captured by the vision inspection module 60, preventing defective products from flowing into subsequent processes.

[0026] In this process, the bending and forming process of carton paper in actual packaging can be simulated, so that the object of detection changes from flat carton paper to formed carton paper. It can effectively detect forming defects such as creases, wrinkles, edge damage, and exposed white areas that may occur after the carton paper is bent, covering the detection blind spots of existing devices.

[0027] In this embodiment, the visual detection structure 6 includes a visual detection module 60, a detection angle adjustment component 61, and a detection horizontal movement component 62. The detection horizontal movement component 62 is located on the detection angle adjustment component 61, and the visual detection module 60 is located on the detection horizontal movement component 62.

[0028] It should be noted that the vision inspection module 60 is existing technology, model number Cognex In-Sight 8000 series.

[0029] Image Acquisition: High-quality imaging visual inspection modules adapted to dynamic scenes typically consist of an industrial camera, a lens, and a light source (such as a ring light source or a strip light source). In the device, through the coordinated adjustment of the inspection angle adjustment component and the horizontal movement component, the camera lens is precisely positioned to the critical area of ​​the carton being inspected (such as the bent side, creases, or printed markings). At this point, the light source provides uniform illumination (avoiding reflections or shadows) based on the carton material (such as matte / gloss) and inspection requirements (such as highlighting creases or printing details). The industrial camera captures high-definition images (with resolutions typically between 12 and 24 megapixels, ensuring the capture of minute defects down to 0.1mm) at a preset frame rate (usually 50-200fps, adapting to production line speeds), converting the light signal into a digital image signal.

[0030] Image preprocessing: Optimizing the signal to reduce interference. The acquired raw images may contain noise (such as uneven brightness caused by light source fluctuations), distortion (although reduced by angle adjustment, still requiring algorithmic correction), or background interference (such as texture of the conveyor platform). The module's built-in preprocessing algorithm optimizes the images: Noise reduction processing (such as Gaussian filtering): eliminates random noise and preserves defect details; Grayscale correction (such as histogram equalization): balances the brightness of the image to ensure consistent brightness in different areas; Distortion correction: Lens distortion is corrected by adjusting camera calibration parameters to ensure the accuracy of measured dimensions; Region of Interest (ROI) extraction: Focus on key areas such as the sides and creases of the carton paper, ignoring irrelevant backgrounds to improve processing efficiency.

[0031] Feature Extraction and Defect Identification: Based on accurate algorithm-driven judgment, the preprocessed image enters the defect identification stage. The core is to extract and compare the "normal features" and "defect features" of the carton paper using algorithms. Template matching: Compare the image to be tested with the preset "standard qualified strip box paper image template" to identify positional offsets (such as skewed creases) and shape differences (such as outward folding of edges). Edge detection (e.g., Canny algorithm): Extract the edge contour of the carton paper and determine whether there is damage, gaps or discontinuities (e.g., exposed edges). Texture analysis: For printed areas, Fourier transform or Local Binary Pattern (LBP) is used to identify pattern blurring, misprinting, and omissions; Defect classification: The identified differences are labeled as specific defect types such as "wrinkles", "damage", and "exposed white", and the defect size (such as wrinkle length and damage area) is quantified and compared with the preset threshold (such as the maximum allowable defect size) to determine whether it is qualified.

[0032] Output results: If the feedback from the production line determines that the product is unqualified, the module will send a signal to the production line control system through a communication interface (such as Ethernet or I / O port) to trigger the rejection mechanism to remove the defective strip box paper from the conveyor line; at the same time, it records data such as defect type and location for production quality traceability and process optimization.

[0033] The trigger rejection mechanism is a robotic arm, which can remove unqualified carton paper from the outside.

[0034] In this embodiment, the detection angle adjustment component 61 includes a mounting box 611, an adjustment motor 612, an adjustment screw shaft 613, an adjustment block 614, an adjustment plate 615, and two connecting plates 616. The mounting box 611 is located inside the mounting frame 1. The adjustment screw shaft 613 is rotatably connected to the mounting box 611. The adjustment motor 612 is located on the outer wall of the mounting box 611 and is drivenly connected to the adjustment screw shaft 613. The adjustment screw shaft 613 is threadedly connected to the adjustment block 614, and the bottom of the adjustment block 614 is slidably engaged with the inner bottom of the mounting box 611. The front end of the adjustment plate 615 is hinged to the mounting box 611. The bottoms of the two connecting plates 616 are respectively hinged to the two ends of the adjustment block 614, and the tops of the two connecting plates 616 are respectively hinged to the inner top of the adjustment plate 615.

[0035] In this embodiment, the detection horizontal movement component 62 includes a moving motor 621, a moving block 622, and a moving lead screw shaft 623. The adjustment plate 615 is provided with a moving groove 617. The moving motor 621 is located on the outer wall of the adjustment plate 615. The moving lead screw shaft 623 is rotatably connected to the adjustment plate 615 and is drivenly connected to the main shaft of the moving motor 621. The moving block 622 is slidably connected in the moving groove 617. The moving block 622 is threadedly connected to the moving lead screw shaft 623. The vision detection module 60 is installed on the top of the moving block 622.

[0036] The adjusting motor 612 and the moving motor 621 in this patent application are prior art, and are equipped with a matching control system. During operation, the operating control system can be used to issue operating commands to the adjusting motor 612 and the moving motor 621. In the detection angle adjustment component 61, the adjustment motor 612 drives the adjustment screw shaft 613 to rotate, thereby causing the adjustment block 614 to slide in the mounting box 611. Through the connecting plate 616, the adjustment plate 615 is pushed to rotate around the front hinge point, thereby realizing the angle adjustment of the vision detection module 60, and thus adjusting the overall shooting angle of the vision detection module 60. When adjusting the angle of the visual inspection module 60, the lens of the visual inspection module 60 can always face the side of the bent carton paper to avoid perspective distortion. Even if the carton paper has a slight deviation in bending angle due to material characteristics, the positive angle of the shooting image can be ensured through real-time angle adjustment, providing clear and distortion-free raw data for subsequent image analysis, and significantly improving the recognition accuracy of defects such as crooked creases and outward-curving edges. Meanwhile, in the horizontal moving component 62, the moving motor 621 drives the moving lead screw shaft 623 to rotate, causing the moving block 622 to slide along the moving groove 617 of the adjusting plate 615, thereby adjusting the horizontal position of the visual inspection module 60 and thus adjusting the horizontal distance between the inspection module and the strip box being tested.

[0037] The horizontal distance between the visual inspection module 60 and the strip box under test can be adjusted precisely to meet the clarity and field of view requirements of different areas, solving the contradiction of unclear details or incomplete overall image capture at a fixed distance; it can move synchronously with the positional deviation of the strip box paper in real time to ensure that the inspection field of view always completely covers the side under test; even if the strip box paper undergoes slight displacement during folding or rotation, it can still track the key area through horizontal fine-tuning, thus eliminating the blind spot caused by positional error from a mechanism perspective.

[0038] This invention, through multiple functions of angle adaptation adjustment, distance adaptation adjustment, and displacement compensation deviation, forms a closed-loop synergy with the folding and rotating structures, completely solving the core limitation of existing equipment that has a fixed position and cannot adapt to complex shapes after bending. It upgrades visual inspection from static single inspection to dynamic adaptive inspection, ultimately achieving comprehensive and accurate control over the quality of carton paper packaging.

[0039] The above description is merely an embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A visual inspection device for the quality of cigarette packaging carton paper packaging in a cigarette packaging machine, characterized in that, Includes an outer frame (1), and a horizontally arranged conveying platform (2) is provided at the middle position inside the outer frame (1); An intermediate adsorption structure (3) for adsorbing and fixing the paper box is provided at the middle position of the conveying platform (2). Both sides of the intermediate adsorption structure (3) are provided with a strip box paper folding structure (4) for bending the strip box paper, and both strip box paper folding structures (4) are rotatably connected to the conveying platform (2). Each of the aforementioned carton paper folding structures (4) is provided with a detection rotation structure (5); The mounting frame (1) is equipped with two visual inspection structures (6) located below the two carton paper folding structures (4) for inspecting the quality of the carton paper packaging.

2. The visual inspection device for the quality of cigarette packaging carton paper packaging according to claim 1, characterized in that: The middle position of the conveying platform (2) is a flat plate (21), and the two ends of the conveying platform (2) are horizontally arranged conveyor belts (22).

3. The visual inspection device for the quality of cigarette packaging carton paper packaging according to claim 2, characterized in that: The intermediate adsorption structure (3) includes several intermediate vacuum adsorption disks (31) arranged at equal intervals on the plate (21), with the adsorption end of the intermediate vacuum adsorption disks (31) facing upward.

4. The visual inspection device for the quality of cigarette packaging carton paper packaging in a cigarette packaging machine according to claim 2, characterized in that: Each of the aforementioned carton paper folding structures (4) includes a flip frame plate (41), a flip motor (42), a first gear (43), and a second gear (44); The tilting motor (42) is located inside the conveying platform (2), and the first gear (43) is connected to the main shaft of the tilting motor (42); The flip frame plate (41) is provided with a horizontally arranged flip shaft (45), and both sides of the flat plate (21) are provided with placement slots (23). The flip frame plate (41) is rotatably connected to the placement slots (23) through the flip shaft (45). The second gear (44) is located on the flip shaft (45) and meshes with the first gear (43). The flip frame plate (41) is provided with a detection through groove (46).

5. The visual inspection device for the quality of cigarette packaging carton paper packaging in a cigarette packaging machine according to claim 4, characterized in that: The detection rotation structure (5) includes a rotary motor (51), a first pulley (52), a second pulley (53), and two rotating vacuum adsorption disks (54). The first pulley (52) and the second pulley (53) are respectively provided with rotating shafts (55), and the flip frame plate (41) is provided with mounting grooves. The first pulley (52) and the second pulley (53) are respectively rotatably connected in the mounting grooves through two rotating shafts (55). A belt (56) is fitted on the first pulley (52) and the second pulley (53). The rotary motor (51) is located at the bottom of the flip frame plate (41) and is connected to the rotating shaft (55) on the first pulley (52). Two rotating vacuum adsorption disks (54) are respectively connected to the top of two rotating shafts (55), and the two rotating vacuum adsorption disks (54) are respectively rotatably connected to the top of the flip frame plate (41).

6. The visual inspection device for the quality of cigarette packaging carton paper packaging according to claim 1, characterized in that: The visual detection structure (6) includes a visual detection module (60), a detection angle adjustment component (61), and a detection horizontal movement component (62). The detection horizontal movement component (62) is located on the detection angle adjustment component (61), and the visual detection module (60) is located on the detection horizontal movement component (62).

7. The visual inspection device for the quality of cigarette packaging carton paper packaging in a cigarette packaging machine according to claim 6, characterized in that: The detection angle adjustment component (61) includes a mounting box (611), an adjustment motor (612), an adjustment lead screw shaft (613), an adjustment block (614), an adjustment plate (615), and two connecting plates (616). The mounting box (611) is located inside the mounting frame (1), and the adjusting screw shaft (613) is rotatably connected to the mounting box (611); The adjusting motor (612) is located on the outer wall of the mounting box (611) and is connected to the adjusting screw shaft (613) for transmission. The adjusting screw shaft (613) is threadedly connected to the adjusting block (614) and the bottom of the adjusting block (614) is slidably engaged with the inner bottom of the mounting box (611). The front end of the adjustment plate (615) is hinged to the mounting box (611), the bottoms of the two connecting plates (616) are respectively hinged to the two ends of the adjustment block (614), and the tops of the two connecting plates (616) are respectively hinged to the inner top of the adjustment plate (615).

8. The visual inspection device for the quality of cigarette packaging carton paper packaging in a cigarette packaging machine according to claim 7, characterized in that: The detection horizontal moving component (62) includes a moving motor (621), a moving block (622), and a moving lead screw shaft (623). The adjustment plate (615) is provided with a moving groove (617), and the moving motor (621) is located on the outer side wall of the adjustment plate (615); The movable lead screw shaft (623) is rotatably connected to the adjusting plate (615) and is connected to the main shaft of the movable motor (621) via a transmission connection. The movable block (622) is slidably connected in the movable groove (617), and the movable block (622) is threadedly connected to the movable lead screw shaft (623); The visual inspection module (60) is mounted on top of the moving block (622).