A multi-spectral cigarette rod appearance imaging detection device

Abstract

A multispectral cigarette pack appearance imaging inspection device includes a housing. An infeed assembly is located on one side of the housing, and an outlet assembly is located on the other side. A black-and-white spectral light source box is located in the middle of the housing, and a color spectral light source box is located on the other side of the housing. A support plate is located on the outer side of the housing, and a conveying mechanism is located inside the support plate. A first outlet is located on one side of the support plate, and a second outlet is located on the other side. A control assembly is located at the top of the conveying mechanism, and an adjustment plate is located at the bottom of the control assembly. The adjustment plate is rotatably connected to the support plate. This device effectively solves the problems in traditional cigarette pack appearance inspection: black-and-white spectral detection lacks detail in binary images and is insufficient for analyzing complex images; color spectral detection has weak detection capabilities for special materials such as transparent paper; and single-spectral technologies are insufficient to meet the comprehensive and accurate detection requirements.

Description

Technical Field

[0001] This utility model relates to the field of cigarette bar detection technology, and in particular to a multispectral cigarette bar appearance imaging detection device. Background Technology

[0002] In the tobacco production and sales process, the appearance quality of cigarette packs is a crucial factor affecting product market competitiveness and consumer satisfaction. Details such as the integrity of the cigarette pack's appearance, the neatness of the packaging, and the proper wrapping of the transparent paper not only concern the product's aesthetics but also directly reflect the quality control level in the production process. Accurate and efficient cigarette pack appearance inspection can promptly identify flaws and defects in the production process, providing strong evidence for optimizing production processes and improving product quality, thereby safeguarding the economic benefits and brand image of tobacco companies.

[0003] (I) Detection technology based on black and white spectroscopy Technical Principle: Existing appearance inspection devices primarily use black and white spectroscopy for detection. This new device acquires five-sided images of the cigarette pack through a black and white spectral light source box. Utilizing the characteristics of black and white spectroscopy, the images are binarized. The binarized image contains only black and white color information, resulting in a simple data format and smaller storage space requirements. This characteristic gives it a significant advantage in storage and transmission. Simultaneously, during image processing and analysis, the relatively small data volume allows for faster computation and higher processing efficiency, meeting the rapid inspection needs of a certain production scale.

[0004] Limitations: However, black-and-white spectral binarization images have significant drawbacks. Because they can only display black and white, lacking rich grayscale levels, they result in severe loss of image detail. When analyzing complex images, they cannot accurately capture subtle changes and features in the appearance of cigarette packs, such as tiny scratches on the surface, and variations in the shape and color intensity of stains. This limits the accuracy and comprehensiveness of the detection, making it difficult to meet the requirements of high-quality cigarette pack appearance inspection.

[0005] (II) Detection technology based on color spectrum Technical Principle: Color spectral detection technology provides an alternative approach to cigarette pack appearance inspection. Compared to black and white images, images binarized from a color spectrum can display more grayscale levels. This makes the images visually richer and more detailed, and can more clearly present various features of the cigarette pack's appearance, including color and texture. Regarding acquisition and transmission, although color images involve relatively large amounts of data, the development of modern storage and transmission technologies has gradually reduced the difficulty of acquisition and transmission, and to a certain extent, it can meet the needs of actual production.

[0006] Limitations: While color spectral imaging excels at revealing image details, it also has its limitations. When inspecting the appearance of cigarette packs, its ability to detect special materials like transparent paper is relatively weak. Transparent paper possesses unique optical properties; under color spectral analysis, its reflected and transmitted light patterns are complex, easily leading to glare and blurring in the image. This makes it difficult to accurately identify crucial information such as the wrapping condition and degree of damage of the transparent paper, thus affecting the judgment of the overall appearance quality of the cigarette pack.

[0007] In summary, existing cigarette bar appearance inspection technologies based on black-and-white and color spectra each have their advantages and disadvantages. Black-and-white spectral detection technology has high processing efficiency but lacks the ability to preserve image details; color spectral detection technology can display more grayscale levels, supplementing the analysis of complex images, but its detection capability for special materials such as transparent paper is insufficient. In practical cigarette bar appearance inspection, relying solely on a single spectral detection technology is insufficient to meet the needs of comprehensive and accurate detection. Therefore, combining the advantages of binarized images from black-and-white and color spectra, developing a multispectral cigarette bar appearance imaging and inspection device that can fully utilize the complementary characteristics of both is key to improving the overall performance of cigarette bar appearance inspection, and has significant practical significance and broad application prospects. Utility Model Content

[0008] In view of the above situation and to overcome the shortcomings of the existing technology, this utility model provides a multispectral cigarette stick appearance imaging detection device. This design effectively solves the problems in traditional cigarette stick appearance detection, such as the lack of detail in black and white spectrum detection due to the binarized image and insufficient analysis of complex images, and the weak detection capability of color spectrum detection for special materials such as transparent paper. Single spectrum technology is difficult to meet the comprehensive and accurate detection requirements.

[0009] To achieve the above objectives, the present invention provides the following technical solution: The present invention includes a housing, an infeed assembly on one side of the housing, an outlet assembly on the other side of the housing, a black and white spectrum light source box in the middle of the housing, a color spectrum light source box on the other side of the housing, a support plate on the outer side of the housing, a conveying mechanism inside the support plate, a first outlet on one side of the support plate, a second outlet on the other side of the support plate, a control assembly at the top of the conveying mechanism, an adjusting plate at the bottom of the control assembly, and the adjusting plate being rotatably connected to the support plate.

[0010] Preferably, the control component includes a first electric actuator, the inner side of which is connected to the housing.

[0011] Preferably, a second electric push rod is provided at the bottom of the first electric push rod, and a vertical plate is provided at the bottom of the non-telescopic end of the second electric push rod.

[0012] Preferably, the second electric push rod has a horizontal bar at its outer bottom, and two vertical bars at the bottom of the horizontal bar. The two vertical bars are symmetrically arranged with the second electric push rod as the axis of symmetry, and the vertical bars are slidably connected to the support plate.

[0013] Preferably, each of the vertical rods has a rack at its bottom, and a gear meshes with one side of each rack. The gear is rotatably connected to the support plate, and the inner side of the gear is connected to the adjusting plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are: The multispectral cigarette pack appearance imaging inspection device integrates a black-and-white spectral light source box and a color spectral light source box into one unit, saving installation space. It has the function of acquiring black-and-white and color images of the same cigarette pack, unaffected by the light source of each other. It improves the original black-and-white image analysis to comprehensive analysis of black-and-white and color images, and then completes multiple sorting operations to ensure rapid classification after inspection. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a three-dimensional schematic diagram of the conveying mechanism of this utility model.

[0017] Figure 3 This is a schematic diagram of the cooperative structure of the first and second electric push rods of this utility model.

[0018] Figure 4 This is a schematic diagram of the cooperation structure between the first and second feeding ports of this utility model.

[0019] Figure 5 This is a schematic diagram of the structure of the vertical rod and the adjusting plate of this utility model.

[0020] Figure 6 This is a schematic diagram of the system principle structure of this utility model.

[0021] The following are the labels in the diagram: 101, Black and white spectrum light source box; 102, Color spectrum light source box; 103, Housing; 104, Feeding mechanism; 105, Discharging mechanism; 201, First electric push rod; 202, Second electric push rod; 203, Vertical plate; 204, Horizontal bar; 205, Vertical bar; 206, Rack; 207, Gear; 208, Adjusting plate; 209, Support plate; 210, Conveying mechanism; 211, First discharge port; 212, Second discharge port. Detailed Implementation

[0022] The following is in conjunction with the appendix Figures 1-6 The specific embodiments of this utility model will be described in further detail.

[0023] The multispectral cigarette bar appearance imaging detection device involved in this utility model has a compact and reasonable overall structure. It is mainly composed of a housing 103, a feeding component, a discharging component, a black and white spectrum light source box 101, a color spectrum light source box 102, a support plate 209, a conveying mechanism 210, and a control component. This utility model includes a housing 103, which serves as the main frame of the entire device, providing stable installation space and necessary protection for the internal components. A feeding component is located on one side of the housing 103, which orderly introduces the cigarette bar to be detected into the detection area. A discharging component is located on the other side of the housing 103, responsible for outputting the detected cigarette bar. A black and white spectrum light source box 101 is located in the middle of the housing 103, and a color spectrum light source box 102 is located on the other side of the housing 103. The two components work together to provide different spectral light source support for the image acquisition of the cigarette bar. A support plate 209 is provided on the outer side of 03, and a conveying mechanism 210 is provided inside the support plate 209. A first discharge port is provided on one side of the support plate 209, and a second discharge port is provided on the other side of the support plate 209. The conveying mechanism 210 is used for the classification and output of cigarette sticks with different test results. A control component is provided on the top of the conveying mechanism 210, and an adjustment plate 208 is provided at the bottom of the control component. The adjustment plate 208 is rotatably connected to the support plate 209. The control component can adjust the angle of the adjustment plate 208. In normal state, it is in a vertical state. After testing, the cigarette sticks are pushed to the top of the conveying mechanism 210 by the discharge component. The transmission mechanism is a conveyor belt. By controlling the movement direction of the transmission belt, the movement direction of the cigarette sticks is changed, and the first and second discharge ports are discharged separately. In addition, the control component can also change the angle of the adjustment plate 208 for the movement and sorting of the third type of cigarette sticks, so as to realize the multi-class sorting of cigarette sticks with different categories and different test results.

[0024] During operation, the cigarette pack passes sequentially through black-and-white and color spectral light source boxes 102. When passing through the black-and-white spectral light source box 101, a black-and-white image of the cigarette pack is captured; when passing through the color spectral light source box 102, a color image of the cigarette pack is captured. In this way, more grayscale levels can be displayed for complex images, allowing for a comprehensive assessment of the target quality.

[0025] Combining black-and-white spectral binarization (grayscale binarization) with color spectral binarization fully leverages the complementary advantages of both. Black-and-white spectral image processing is highly efficient, enabling rapid preliminary screening of cigarette pack appearance; color spectral images provide richer detail information, allowing for in-depth analysis of complex images. The synergy between the two significantly enhances the overall performance of image processing, greatly improving the accuracy and comprehensiveness of cigarette pack appearance inspection, and providing more reliable quality assurance for tobacco production.

[0026] During the cigarette pack's journey, it first passes the laser emission point of the black-and-white spectrum light source box 101. At this point, an electrical signal is connected to the control board. Upon receiving the signal, the control board quickly illuminates the light source of the black-and-white spectrum light source box 101 and triggers the detection probe camera of the black-and-white spectrum light source box 101 to take a picture. This process is precise and rapid, ensuring that a clear image of the cigarette pack under the black-and-white spectrum can be captured.

[0027] The cigarette stick then continues its journey, passing the fiber optic transmitter of the color spectrum light source box 102. Similarly, a voltage level signal is input to the control board, which illuminates the light source in the color spectrum light source box 102 and triggers the camera inside to take a picture. The two stations sequentially acquire images of the same cigarette stick, ensuring the consistency and integrity of the acquired image information.

[0028] Two workstations sequentially uploaded images of the same cigarette pack to specialized inspection software. This software incorporates advanced algorithms capable of comprehensively analyzing the acquired black-and-white and color images. Through complex calculations and comparisons, the software can obtain detailed inspection results on the appearance quality of the cigarette pack.

[0029] When the control board receives an NG (Not Acceptable) signal from the software, it immediately activates its internal algorithm. Based on preset logic and parameters, the control board transmits relevant information about the defective cigarette pack to the rejection unit. Upon receiving accurate instructions, the rejection unit can quickly and precisely remove the defective cigarette pack from the production line, ensuring that non-conforming products do not flow into the next process.

[0030] Meanwhile, the device also boasts comprehensive data statistics capabilities. It compiles the inspection and rejection counts recorded for all shifts in tabular form and displays them clearly in the software interface. This allows operators to intuitively view historical rejection data, providing strong data support for production process monitoring and optimization.

[0031] The electrical control system of this device consists of several key components, including an I / O control board, synchronous optical fiber, industrial camera, and light source. These components work together to form an efficient and stable electrical control network, providing a reliable guarantee for the normal operation of the entire testing device.

[0032] The I / O control board plays a core regulatory role in the entire electrical control system. After receiving the synchronization signals from the black-and-white spectrum light source box 101 and the color spectrum light source box 102, it will trigger the black-and-white spectrum light source box 101 to detect the camera and light source, and the color spectrum light source box 102 to detect the camera and light source, respectively. This process ensures that the camera and light source can work together at the precise moment to achieve accurate acquisition of smoke bar images.

[0033] After two workstations successively upload images of the same cigarette pack to the software, the software analyzes and processes the images using internal algorithms to determine the appearance quality of the cigarette pack. When the determination result is NG (Not Good), the software outputs an NG signal to the I / O control board. The I / O control board, based on rejection synchronization and packing synchronization information, performs precise calculations and judgments through its internal program, and then outputs a rejection signal to the rejection component. Upon receiving the signal, the rejection component quickly and accurately removes the cigarette pack from the production line, achieving automated processing of defective products.

[0034] The control component includes a first electric push rod 201. The inner side of the first electric push rod 201 is connected to the housing 103. The first electric push rod 201 is fixedly connected to the housing 103. After being powered on, the first electric push rod 201 can extend and retract freely.

[0035] The bottom of the first electric push rod 201 is provided with a second electric push rod 202. The bottom of the non-telescopic end of the second electric push rod 202 is provided with a vertical plate 203. The extension and retraction of the first electric push rod 201 can drive the second electric push rod 202 to rise and fall. The telescopic part of the second electric push rod 202 is fixedly connected to the telescopic part of the first electric push rod 201. When the second electric push rod 202 extends, since its telescopic part is fixedly connected to the first electric push rod 201, the non-telescopic part of the second electric push rod 202 will move outward, thereby driving the vertical plate 203 to move outward. Through the cooperation of the first electric push rod 201 and the second electric push rod 202, the height and position of the vertical plate 203 can be controlled.

[0036] The second electric push rod 202 has a horizontal bar 204 at its outer bottom. When the second electric push rod 202 extends, it can drive the horizontal bar 204 to move downward. The bottom of the horizontal bar 204 has two vertical bars 205. The two vertical bars 205 are symmetrically arranged about the second electric push rod 202 as the axis of symmetry. The vertical bars 205 are slidably connected to the support plate 209. The bottom of each vertical bar 205 is provided with a rack 206. One side of each rack 206 is meshed with a gear 207. The gear 207 is rotatably connected to the support plate 209. The inner side of the gear 207 is connected to the adjusting plate 208. When the horizontal bar 204 moves downward, it can drive the two vertical bars 205 to move downward at the same time. The vertical bars 205 drive the rack 206 to move. The rack 206 drives the meshed gear 207 to rotate, thereby realizing the rotation of the adjusting plate 208.

[0037] Specifically, when a third type of cigarette stick needs to be sorted out, the first electric push rod 201 is extended to move the vertical plate 203 downward, which abuts against the inside of the cigarette stick. At the same time as the first electric push rod 201 extends, the adjusting plate 208 can be rotated outward to an inclined state. Then, the second electric push rod 202 extends to move the vertical plate 203 outward, pushing the cigarette stick down along the inclined adjusting plate 208, thus completing the sorting of various types of cigarette sticks.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multispectral smoke bar appearance imaging detection device, comprising a housing (103), characterized in that, The housing (103) has a feeding assembly on one side and a discharging assembly on the other side. The housing (103) has a black and white spectrum light source box (101) in the middle and a color spectrum light source box (102) on the other side. The housing (103) has a support plate (209) on the outside. The support plate (209) has a conveying mechanism (210) inside. The support plate (209) has a first discharge port on one side and a second discharge port on the other side. The conveying mechanism (210) has a control assembly at the top and an adjustment plate (208) at the bottom. The adjustment plate (208) is rotatably connected to the support plate (209).

2. A multispectral cigarette stick appearance imaging detection device according to claim 1, characterized in that, The control component includes a first electric push rod (201), the inner side of which is connected to the housing (103).

3. A multispectral cigarette stick appearance imaging detection device according to claim 2, characterized in that, The bottom of the first electric push rod (201) is provided with a second electric push rod (202), and the bottom of the non-telescopic end of the second electric push rod (202) is provided with a vertical plate (203).

4. A multispectral cigarette stick appearance imaging detection device according to claim 3, characterized in that, The second electric push rod (202) has a horizontal bar (204) at its outer bottom. The bottom of the horizontal bar (204) has two vertical bars (205). The two vertical bars (205) are arranged symmetrically with the second electric push rod (202) as the axis of symmetry. The vertical bars (205) are slidably connected to the support plate (209).

5. A multispectral cigarette rod appearance imaging detection device according to claim 4, characterized in that, The bottom of each vertical rod (205) is provided with a rack (206), and a gear (207) is meshed on one side of each rack (206). The gear (207) is rotatably connected to the support plate (209), and the inner side of the gear (207) is connected to the adjusting plate (208).

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