Cigarette circumferential appearance and cigarette laser hole visual inspection integrated device

Abstract

The utility model relates to a cigarette circumferential appearance and cigarette laser hole visual inspection integrated device, which comprises a component shell, an image taking window, a circumferential inspection camera group and a laser hole inspection camera group, the image taking window is arranged on one side of the component shell, two lamp strip light sources are symmetrically arranged on two sides of the image taking window and used for lighting the circumferential inspection camera group, and the laser hole inspection camera group is arranged on the other side of the component shell. The circumferential detection camera group comprises a camera and a conventional lens; two point light sources are further arranged on the side edge of the image taking window and used for lighting the laser hole detection camera set, and the laser hole detection camera set comprises a camera and a macro lens. The device has the advantages that the device is high in integration level, two detection functions are integrated at the same position, cigarette circumferential appearance visual detection and cigarette circumferential laser hole visual detection are completed through one device, the two detection functions belong to macroscopic and microscopic, triggering positions are staggered, photographing and image taking do not interfere with each other, and the detection accuracy is high. The problem that no installation space exists in the prior art is perfectly solved, and the host operation state is not affected.

Description

Technical Field

[0001] The utility model relates to the field of visual detection in the cigarette production process of a cigarette making machine in the tobacco industry, and in particular to an integrated device for visual detection of the circumferential appearance of a cigarette and a laser hole of a cigarette. Background Art

[0002] In the modern tobacco industry, various links in cigarette production have formed relatively stable and reliable quality inspection methods. In the process of cigarette production, the circumferential appearance of cigarettes and the circumferential laser holes of cigarettes need to be respectively installed with some machine vision products for inspection. This high-speed visual inspection plays a key role in the control of cigarette product quality. It can detect various quality problems in the cigarette production process and eliminate unqualified cigarettes. It is an excellent cigarette product quality control method. In the prior art, the positions of the visual inspection device for the circumferential appearance of cigarettes and the visual inspection device for the circumferential laser holes of cigarettes overlap. The former belongs to macroscopic inspection and the latter belongs to local microscopic inspection, and the two functions cannot be compatible at the same time. It is impossible to install two functions of the device in the same position. If it is installed in different positions, it will occupy a large amount of the original machine position, thereby seriously affecting the operation status of the host. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and to provide a functional component that can simultaneously realize the visual macroscopic detection of the circumferential appearance of cigarettes and the visual microscopic detection of the circumferential laser holes of cigarettes, an integrated device for visual detection of the circumferential appearance of cigarettes and the laser holes of cigarettes, which is not affected by the installation position and does not affect the operating state of the main machine.

[0004] The utility model provides an integrated device for visually detecting the circumferential appearance of cigarettes and the laser holes of cigarettes, and its technical solution is as follows:

[0005] An integrated device for visually inspecting the circumferential appearance of a cigarette and the laser holes of a cigarette comprises a component housing, an image taking window, a circumferential detection camera group, and a laser hole detection camera group. The image taking window is arranged on one side of the component housing, and the circumferential detection camera group and the laser hole detection camera group are arranged in the component housing. Two light strip light sources are symmetrically arranged on both sides of the image taking window for illuminating the circumferential detection camera group, which comprises a camera and a conventional lens; two point light sources are also arranged on the side of the image taking window for illuminating the laser hole detection camera group, which comprises a camera and a macro lens.

[0006] Furthermore, the lens of the circumferential detection camera group is arranged opposite to the image taking window, and each time an image is taken, two cigarettes in the slots are taken, and the two cigarettes in the slots are symmetrical about the camera axis when the image is taken.

[0007] Furthermore, the lens of the laser hole detection camera group is arranged opposite to the image taking window, and the circumferential detection camera group and the laser hole detection camera group share a image taking window. When taking images, the cigarettes in the slot are located directly in front of the laser hole detection camera group, and each time an image is taken, one cigarette in the slot is taken.

[0008] Furthermore, the light source of the light strip is arranged at an obtuse angle to the glass window, and the normal line of the light source of each light strip is perpendicular to the axis of the cigarette in the corresponding slot, which can provide reliable lighting for circumferential imaging of the cigarette.

[0009] Furthermore, the optical path of the laser hole detection camera group forms an acute angle with the axis of the cigarette, forming a low-angle lighting. The point light source includes a lighting bead, a focusing lens, and a lighting reflector. The lighting bead guides the lighting light path to the circumferential laser hole of the cigarette through reflection of the focusing lens and the lighting reflector. Two lighting beads are arranged on each cigarette, which can provide reliable lighting for the laser hole detection of the cigarette.

[0010] Furthermore, the integrated device also includes electronic components, which provide trigger signals for the camera group and the light source group and are installed inside the component housing. The trigger positions of the circumferential detection camera group and the light strip light source are symmetrical about the camera axis between two adjacent smoke grooves of the drum wheel; the trigger position of the laser hole detection camera group and the point light source is perpendicular to the axis of the drum wheel smoke groove and the laser hole detection camera group.

[0011] Furthermore, the integrated device also includes an optical fiber, a power supply line, a partition joint, a dust removal guide plate and a component cover. The optical fiber and the power supply line are inserted into an interface set outside the component shell. The optical fiber is used for transmission after image acquisition, and the power supply line provides power to the inside of the component. The partition plug is used to connect the air ducts inside and outside the component. The dust removal guide plate is installed on the window surface of the component shell to provide airflow for window cleaning, and the component cover plays a sealing role.

[0012] Furthermore, the macro lens magnification of the laser hole detection camera group is 0.35, and the target surface size of the matching camera is 1 / 2 inch.

[0013] Furthermore, two sets of integrated devices are installed on a single-channel cigarette making machine or a dual-channel cigarette making machine through a fixed bracket, and are respectively arranged on adjacent drum wheels, located in front and back positions of the circumferential flipping of the cigarette, and the images obtained by the two sets of integrated devices are spliced ​​to obtain a complete cigarette image;

[0014] When the integrated device is installed on a dual-channel cigarette making machine, one integrated device includes two circumferential detection camera groups, four light strip light sources, two laser hole detection camera groups, and four point light sources.

[0015] Furthermore, the integrated device is installed on a ZJ119 cigarette making machine, a ZJ116 cigarette making machine or a proto2-2 cigarette making machine, and the installation position is the spatial position below the left side of the slider separation wheel and above the right side of the detection wheel.

[0016] The implementation of this utility model includes the following technical effects:

[0017] The utility model provides an integrated device for visual detection of the circumferential appearance of cigarettes and the circumferential laser holes of cigarettes. The device has a high degree of integration and integrates two detection functions at the same position. One device is used to complete visual detection of the circumferential appearance of cigarettes and visual detection of the circumferential laser holes of cigarettes. The two detection functions are macroscopic and microscopic, and the trigger positions are staggered, and photographing and taking pictures do not interfere with each other. This perfectly solves the previously thorny problem of lack of installation space and does not affect the operating status of the host. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the integrated device for visual detection of the circumferential appearance of cigarettes and the laser holes of cigarettes according to an embodiment of the utility model.

[0019] Figure 2 It is a schematic diagram of the internal structure of the integrated device for visual inspection of the circumferential appearance of a cigarette and the laser hole of a cigarette according to an embodiment of the utility model.

[0020] Figure 3 for Figure 2 Schematic diagram of the light path of the AA profile light strip light source (circumferential appearance inspection).

[0021] Figure 4 It is a schematic diagram of the internal three-dimensional structure of the integrated device for visual inspection of the circumferential appearance of a cigarette and the laser hole of a cigarette according to an embodiment of the utility model.

[0022] Figure 5 Schematic diagram of a point light source.

[0023] Figure 6 for Figure 5 Schematic diagram of the optical path of the BB cross-section point light source (laser hole appearance detection).

[0024] Figure 7 A side view schematic diagram of the installation position of the integrated device on the cigarette making machine.

[0025] Figure 8 It is a three-dimensional schematic diagram of the installation position of the integrated device on the cigarette making machine.

[0026] In the figure: 1. Component housing; 2. Image taking window; 3. Circumferential detection camera group; 4. Laser hole detection camera group; 5. Light strip light source; 6. Point light source; 60. Lighting bead; 61. Focusing lens; 62. Illumination reflector; 7. Electronic components; 8. Optical fiber; 9. Power supply line; 10. Partition joint; 11. Dust removal guide plate; 12. Component cover; 13. Cigarette; 14. Fixed bracket; 15. Slider separation wheel; 16. Detection wheel. DETAILED DESCRIPTION

[0027] The present invention will be described in detail below in conjunction with embodiments and drawings. It should be pointed out that the described embodiments are only intended to facilitate the understanding of the present invention and do not have any limiting effect on the present invention.

[0028] See also Figures 1 to 6 As shown, an integrated device for visual inspection of the circumferential appearance and laser hole of a cigarette of the present embodiment comprises a component shell 1, an image taking window 2, a circumferential inspection camera group 3, and a laser hole inspection camera group 4. The image taking window 2 is arranged on one side of the component shell 1, and the circumferential inspection camera group 3 and the laser hole inspection camera group 4 are arranged in the component shell 1. Two light strip light sources 5 are symmetrically arranged on both sides of the image taking window 2 for illuminating the circumferential inspection camera group 3. The circumferential inspection camera group 3 comprises a camera and a conventional lens, which have a larger field of view when combined with the conventional lens, and is a macroscopic image taking. The lens of the circumferential inspection camera group 3 is arranged opposite to the image taking window 2, and images are taken for two slot cigarettes 13 each time. When images are taken, the two slot cigarettes 13 are symmetrical about the camera axis; the circumferential inspection camera group 3, the light strip light sources 5 are symmetrically arranged on both sides of the image taking window 2 for illuminating the circumferential inspection camera group 3. The light source 5 is responsible for lighting and taking pictures during the visual inspection of the circumferential appearance of the cigarette 13; two point light sources 6 are also set on the side of the image window 2, which are used to illuminate the laser hole detection camera group 4. The laser hole detection camera group 4 includes a camera and a macro lens. The combination of the two has a small field of view when taking pictures, forming a microscopic image, which can clearly take pictures of the circumferential laser holes of the cigarette 13. The lens of the laser hole detection camera group 4 is set opposite to the image window 2. The circumferential detection camera group 3 and the laser hole detection camera group 4 share a picture window 2. When taking pictures, the slot cigarette 13 is located directly in front of the laser hole detection camera group 4. Each time a slot cigarette 13 is taken, the laser hole detection camera group 4 and the point light source 6 are responsible for lighting and taking pictures during the visual inspection of the circumferential laser holes of the cigarette 13. See Figure 3 As shown, the light strip light source 5 is set at an obtuse angle to the glass window, and the normal line of each light strip light source 5 is perpendicular to the axis of the corresponding slot cigarette 13, which can provide reliable lighting for the circumferential imaging of the cigarette 13. Figure 6 As shown, the optical path of the laser hole detection camera group 4 forms an acute angle with the axis of the cigarette 13, forming low-angle lighting. The point light source 6 includes a lighting bead 60, a focusing lens 61, and an illumination reflector 62. The lighting bead 60 guides the illumination optical path to the circumferential laser hole of the cigarette 13 through the reflection of the focusing lens 61 and the illumination reflector 62. Two lighting beads 60 are arranged on each cigarette 13, which can provide reliable lighting for the laser hole detection of the cigarette 13. The circumferential laser hole of the cigarette 13 is a small hole uniformly distributed in the circumferential direction, and the aperture of the small hole is within 0.2mm. Preferably, the magnification of the macro lens of the laser hole detection camera group 4 is 0.35, and the target surface size of the matching camera is 1 / 2 inch (6.4*4.8). The converted aperture can reach 14 pixels, and each pixel corresponds to a micron-level image, realizing a high-precision detection function.

[0029] Further, see Figure 1and Figure 4 As shown, the integrated device also includes electronic components 7, which provide trigger signals for the camera group and the light source group and are installed inside the component housing 1. The trigger positions of the circumferential detection camera group 3 and the light strip light source 5 are symmetrical about the camera axis between the two adjacent smoke grooves of the drum wheel; the trigger positions of the laser hole detection camera group 4 and the point light source 6 are perpendicular to the axis of the drum wheel smoke groove and the laser hole detection camera group 4. The two triggers are at different positions, which avoids the mutual influence of the two when lighting during detection. The integrated device also includes optical fiber 8, power supply line 9, partition joint 10, dust removal guide plate 11 and component cover 12. The optical fiber 8 and power supply line 9 are inserted into the interface set outside the component housing 1. The optical fiber 8 is used for transmission after taking the image, and the power supply line 9 provides power for the inside of the component. The partition plug is used to connect the airways inside and outside the component. The dust removal guide plate 11 is installed on the window surface of the component housing 1 to provide airflow for window cleaning and ensure the cleanliness of the image taking window 2. The component cover 12 plays a sealing role.

[0030] See also Figure 7 and Figure 8 As shown, two sets of integrated devices are installed on a dual-channel cigarette making machine or a dual-channel cigarette making machine through a fixed bracket 14, and are arranged on adjacent drum wheels, respectively, and are located in front and back positions of the circumferential flipping of the cigarette 13. The images obtained by the two sets of integrated devices are spliced ​​to obtain a complete image of the cigarette 13, realizing full detection of the appearance of the cigarette. The cigarettes 13 discharged inside and outside the same drum wheel and the same slot of the dual-channel cigarette making machine are double-length cigarettes cut 13, and the two cigarettes are symmetrical about the cutting plane, and the cutting position is the filter section of the cigarette; see Figure 4 As shown, when the integrated device is installed on a dual-channel cigarette making machine, one integrated device includes two circumferential detection camera groups 3, four light strip light sources 5, two laser hole detection camera groups 4, and four point light sources 6, which are divided into two groups, each group detecting cigarettes on one channel. Figure 7 and Figure 8 As shown, the integrated device is installed on a ZJ119 cigarette making machine, a ZJ116 cigarette making machine or a proto2-2 cigarette making machine, and the installation position is the spatial position below the left side of the slider separation wheel 15 and above the right side of the detection wheel 16.

[0031] The integrated device for visual inspection of cigarette circumferential appearance and cigarette laser holes in the present embodiment has a high degree of integration and integrates two inspection functions at the same position, so that visual inspection of cigarette circumferential appearance and visual inspection of cigarette circumferential laser holes can be completed with one device, and the two inspection functions are macroscopic and microscopic, with the trigger positions staggered and pictures taken without interfering with each other, which perfectly solves the previously thorny problem of lack of installation space and does not affect the operating status of the host.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. An integrated device for detecting the circumferential appearance of cigarettes and the laser holes of cigarettes, characterized in that: It includes a component shell, an image taking window, a circumferential detection camera group, and a laser hole detection camera group. The image taking window is arranged on one side of the component shell, and the circumferential detection camera group and the laser hole detection camera group are arranged in the component shell. Two light strip light sources are symmetrically arranged on both sides of the image taking window for lighting the circumferential detection camera group. The circumferential detection camera group includes a camera and a conventional lens; two point light sources are also arranged on the side of the image taking window for lighting the laser hole detection camera group. The laser hole detection camera group includes a camera and a macro lens.

2. The integrated device for detecting the circumferential appearance of cigarettes and the laser holes of cigarettes according to claim 1, characterized in that: The lens of the circumferential detection camera group is arranged opposite to the image taking window, and each time an image is taken, two cigarettes in the slots are taken, and when the image is taken, the two cigarettes in the slots are symmetrical about the camera axis.

3. The integrated device for detecting the circumferential appearance of cigarettes and the laser holes of cigarettes according to claim 1, characterized in that: The lens of the laser hole detection camera group is arranged opposite to the image taking window, and the circumferential detection camera group and the laser hole detection camera group share a image taking window. When taking images, the cigarettes in the slot are located directly in front of the laser hole detection camera group, and each time an image is taken, one cigarette in the slot is taken.

4. The integrated device for detecting the circumferential appearance of cigarettes and the laser holes of cigarettes according to claim 1, characterized in that: The light source of the light strip is arranged at an obtuse angle to the glass window, and the normal line of the light source of each light strip is perpendicular to the axis of the cigarette in the corresponding slot, which can provide reliable lighting for circumferential imaging of the cigarette.

5. The integrated device for detecting the circumferential appearance of cigarettes and the laser holes of cigarettes according to claim 1, characterized in that: The optical path of the laser hole detection camera group forms an acute angle with the axis of the cigarette, forming low-angle lighting. The point light source includes a lighting bead, a focusing lens, and a lighting reflector. The lighting bead guides the lighting light path to the circumferential laser hole of the cigarette through reflection of the focusing lens and the lighting reflector. Two lighting beads are arranged on each cigarette, which can provide reliable lighting for the laser hole detection of the cigarette.

6. The integrated device for detecting the circumferential appearance of cigarettes and the laser holes of cigarettes according to claim 1, characterized in that: The integrated device also includes electronic components, which provide trigger signals for the camera group and the light source group and are installed inside the component housing. The trigger positions of the circumferential detection camera group and the light strip light source are symmetrical about the camera axis between two adjacent smoke grooves of the drum wheel; the trigger position of the laser hole detection camera group and the point light source is perpendicular to the axis of the drum wheel smoke groove and the laser hole detection camera group.

7. The integrated device for detecting the circumferential appearance of cigarettes and the laser holes of cigarettes according to claim 1, characterized in that: The integrated device also includes an optical fiber, a power supply line, a partition joint, a dust removal guide plate and a component cover. The optical fiber and the power supply line are inserted into an interface set outside the component shell. The optical fiber is used for transmission after image acquisition, and the power supply line provides power to the inside of the component. The partition plug is used to connect the air ducts inside and outside the component. The dust removal guide plate is installed on the window surface of the component shell to provide airflow for window cleaning, and the component cover plays a sealing role.

8. The integrated device for detecting the circumferential appearance of cigarettes and the laser holes of cigarettes according to claim 1, characterized in that: The laser hole detection camera set has a macro lens magnification of 0.35 and a matching camera target size of 1 / 2 inch.

9. The integrated device for detecting the circumferential appearance of cigarettes and the laser holes of cigarettes according to claim 1, characterized in that: The two sets of integrated devices are installed on a single-channel cigarette making machine or a double-channel cigarette making machine through a fixed bracket, and are arranged on adjacent drum wheels, respectively, and are located in front and back positions of the circumferential turning of the cigarette. The images obtained by the two sets of integrated devices are spliced ​​to obtain a complete cigarette image; When the integrated device is installed on a dual-channel cigarette making machine, one integrated device includes two circumferential detection camera groups, four light strip light sources, two laser hole detection camera groups, and four point light sources.

10. The integrated device for detecting the circumferential appearance of cigarettes and the laser holes of cigarettes according to claim 1, characterized in that: The integrated device is installed on a ZJ119 cigarette making machine, a ZJ116 cigarette making machine or a proto2-2 cigarette making machine, and the installation position is the space position below the left side of the slider separation wheel and above the right side of the detection wheel.

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