Cigarette end face detection device of cigarette packer

Abstract

The utility model discloses a cigarette end face detection device of a cigarette packer, which comprises a left side plate and a right side plate, a gap between the two side plates forms a detection channel, each side plate is provided with a shooting window, and the shooting windows on the two side plates are used for completely exposing the left end face and the right end face of a cigarette on an outlet conveying channel. An end face detection assembly is arranged on each side plate and located on the outer side of the corresponding shooting window, each end face detection assembly comprises a detection camera and an irradiation light source, the detection cameras are installed on the side plates through camera installation supports and located above the corresponding shooting windows, and camera bodies of the detection cameras face the detection windows obliquely and downwards; the irradiation light source is installed on the side plate through the light source installation support and located above the shooting window, and the irradiation surface of the irradiation light source faces downwards. Compared with the prior art, the cigarette end face detection device has the advantages that the cigarette end face detection operation is completed on the basis that the conveying work of a conveying mechanism of the cigarette packer is not affected, and the quality of a detection image is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of tobacco packaging machine technology, and in particular to a cigarette pack end face detection device for a cigarette packaging machine. Background Technology

[0002] In the tobacco industry, the inspection of cigarette pack appearance is particularly important, as the integrity of the packaging and the aesthetic appeal of the product significantly impact its market competitiveness. In recent years, with the development of computer vision technology, image processing-based product appearance inspection methods have gradually become mainstream. By capturing images of the cigarette pack's end face using a camera and combining this with image processing algorithms for analysis, defects on the cigarette pack's end face can be detected efficiently and accurately.

[0003] The existing FOCKE FX2 packaging machine lacks a cigarette pack end-face inspection device, making it unable to identify and remove appearance defects such as packaging damage, folded edges, exposed areas, and missing QR codes during actual production. Currently, most common cigarette pack inspection devices on the market employ a vertical lighting and vertical imaging optical path structure, which requires significant installation space. However, the FOCKE FX2 packaging machine's exit space is limited, and its mechanical structure is complex, making it impossible to directly install existing inspection devices. Furthermore, existing inspection devices generally use direct light sources for illumination, which limits their versatility when dealing with diverse cigarette pack packaging designs. In particular, they are ineffective at detecting defects on the end-faces of cigarette packs with special appearances, such as those with laser packaging. This is because the laser film on laser packaging produces strong reflections under direct light, resulting in bright, randomly positioned interference stripes on the inspection image, thus obscuring the features to be detected. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a cigarette pack end face detection device for a cigarette packaging machine, so as to complete the cigarette pack end face detection operation without affecting the conveying operation of the cigarette packaging machine, and to ensure the quality of the detection image.

[0005] This utility model is achieved through the following technical solution:

[0006] A cigarette pack end face detection device is disclosed for a cigarette packaging machine. The detection device is installed in the outlet conveying channel of the cigarette packaging machine. The detection device includes two side plates, one on the left and one on the right, respectively installed on the left and right sides of the outlet conveying channel. The gap between the two side plates forms a detection channel for the cigarette pack to pass through. Each side plate has a shooting window, which fully exposes the left and right end faces of the cigarette pack on the outlet conveying channel. Each side plate has an end face detection component outside the corresponding shooting window. The end face detection component includes a detection camera and an illumination light source. The detection camera is mounted on the side plate via a camera mounting bracket and is located diagonally above the corresponding shooting window. The camera lens of the detection camera is tilted downwards and faces the detection window. The illumination light source is mounted on the side plate via a light source mounting bracket and is located above the shooting window with the illumination surface facing downwards.

[0007] As a preferred embodiment of the above-mentioned detection device, each set of end face detection components further includes a main bracket mounted on the side plate. The main bracket includes a vertically extending main mounting plate, and the camera mounting bracket and the light source mounting bracket are detachably mounted on the main mounting plate of the main bracket.

[0008] As a preferred embodiment of the above-mentioned detection device, the camera mounting bracket includes a camera mounting base plate and a camera mounting plate connected to each other. The camera mounting base plate has a first oblong hole extending vertically. A first bolt passes through the first oblong hole and is screwed onto the main mounting plate to realize the installation of the camera mounting base plate and the main mounting plate. The camera mounting plate is formed by bending one end of the camera mounting base plate outward and upward at an angle. The camera mounting plate has a second oblong hole extending at an angle in the left-right direction. A second bolt passes through the second oblong hole and is screwed onto the detection camera to realize the installation of the detection camera and the camera mounting plate.

[0009] As a preferred embodiment of the above-mentioned detection device, the light source mounting bracket is an L-shaped light source mounting plate. A third oblong hole extending vertically is opened on the main mounting plate. A third bolt passes through the third oblong hole on the main mounting plate and is tightened onto the vertical section of the light source mounting plate to realize the installation of the light source mounting plate and the main mounting plate. A fourth oblong hole extending in the front-back direction is opened on the horizontal section of the light source mounting plate. A fourth bolt passes through the fourth oblong hole on the horizontal section of the light source mounting plate and is tightened onto the illumination light source to realize the installation of the illumination light source and the light source mounting plate.

[0010] As a preferred embodiment of the above-mentioned detection device, the bottom of the side plate is provided with a horizontally extending mounting protrusion, and the main bracket also includes a horizontally extending main mounting base plate. The main mounting plate and the main mounting base plate of the main bracket form an L-shape. A fifth oblong hole extending in the left and right direction is opened on the main mounting base plate. The main bracket and the mounting protrusion plate are installed by passing a fifth bolt through the fifth oblong hole of the main mounting base plate and tightening it.

[0011] As a preferred embodiment of the above-mentioned detection device, the illumination light source is a strip light source extending in the front-back direction.

[0012] As a preferred embodiment of the above-mentioned detection device, the inlet section of the detection channel formed by the two side plates is an outwardly expanding guide section.

[0013] This invention has the following advantages over the prior art:

[0014] This utility model provides a cigarette pack end-face inspection device for a cigarette packaging machine. It acquires images of both ends of the cigarette pack through imaging windows on two side plates, allowing for end-face inspection without interfering with the conveying mechanism of the cigarette packaging machine. Simultaneously, by placing two illumination light sources above the two ends of the cigarette pack, it achieves lateral lighting, avoiding laser reflection caused by direct light and minimizing the area obscured by the inspection features. Furthermore, this inspection device allows for adjustment of the installation positions of the inspection camera and illumination light sources within a certain range, ensuring the accuracy of their installation and thus guaranteeing the quality of the captured images. Attached Figure Description

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

[0016] Figure 2 yes Figure 1 Enlarged view of point A.

[0017] Figure 3 This is a structural schematic diagram from another perspective of this utility model.

[0018] Numbered in the diagram: 1 Side plate; 2 Detection channel; 3 Guide section; 4 Shooting window; 5 Detection camera; 6 Illumination light source; 7 Camera mounting bracket; 8 Light source mounting bracket; 9 Main bracket; 10 Main mounting plate; 11 Camera mounting base plate; 12 Camera mounting plate; 13 First oblong hole; 14 First bolt; 15 Second oblong hole; 16 Second bolt; 17 Light source mounting plate; 18 Third oblong hole; 19 Third bolt; 20 Fourth oblong hole; 21 Fourth bolt; 22 Mounting protrusion; 23 Main mounting base plate; 24 Fifth oblong hole; 25 Fifth bolt; 26 Smoke bar. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. These embodiments are implemented based on the technical solution of this utility model and provide detailed implementation methods and specific operation processes. However, the protection scope of this utility model is not limited to the following embodiments.

[0020] See Figures 1 to 3This embodiment discloses a cigarette pack end face detection device for a cigarette packaging machine. The detection device is installed in the outlet conveying channel of the cigarette packaging machine. The detection device includes two side plates 1 installed on the left and right sides of the outlet conveying channel, respectively. The gap between the two side plates 1 forms a detection channel 2 for the cigarette pack 26 to pass through. The inlet section of the detection channel 2 formed by the two side plates 1 is an outwardly expanding guide section 3 to facilitate the smooth and undamaged introduction of the cigarette pack 26 and prevent scratching and damage to the end face of the cigarette pack 26. Each side plate 1 has a shooting window 4, which fully exposes the left and right end faces of the cigarette pack 26 on the outlet conveying channel. Each side plate 1 has an end face detection component outside the corresponding shooting window 4. The end face detection component includes a detection camera 5 and an illumination light source 6. The detection camera 5 is mounted on the side plate 1 through a camera mounting bracket 7, and the detection camera 5 is located diagonally above the corresponding shooting window 4. The camera of the detection camera 5 is tilted downward and faces the detection window. The illumination light source 6 is a strip light source extending in the front-to-back direction. It can be an LED strip light source. The illumination light source 6 is mounted on the side plate 1 through the light source mounting bracket 8. The illumination light source 6 is located above the shooting window 4 and the illumination surface faces downward.

[0021] Each end face detection assembly also includes a main bracket 9 mounted on the side plate 1. The main bracket 9 includes a vertically extending main mounting plate 10. The camera mounting bracket 7 and the light source mounting bracket 8 are detachably mounted on the main mounting plate 10 of the main bracket 9.

[0022] The camera mounting bracket 7 includes a connected camera mounting base plate 11 and a camera mounting plate 12. The camera mounting base plate 11 has a first oblong hole 13 extending vertically. A first bolt 14 passes through the first oblong hole 13 and is tightened onto the main mounting plate 10, thus mounting the camera mounting base plate 11 to the main mounting plate 10. The camera mounting plate 12 is formed by bending one end of the camera mounting base plate 11 outwards and upwards. The camera mounting plate 12 has a second oblong hole 15 extending oblongly in the left-right direction. A second bolt 16 passes through the second oblong hole 15 and is tightened onto the detection camera 5, thus mounting the detection camera 5 to the camera mounting plate 12. Loosening the first bolt 14 and the second bolt 16 allows adjustment of their relative positions in the first oblong hole 13 and the second oblong hole 15, enabling adjustment of the detection camera 5's position in both the vertical and left-right directions, ensuring it is in an accurate shooting position and thus guaranteeing the quality of the captured image.

[0023] The light source mounting bracket 8 is an L-shaped light source mounting plate 17. A third oblong hole 18 extending vertically is formed on the main mounting plate 10. A third bolt 19 passes through the third oblong hole 18 on the main mounting plate 10 and is tightened onto the vertical section of the light source mounting plate 17, thus installing the light source mounting plate 17 onto the main mounting plate 10. A fourth oblong hole 20 extending in the front-back direction is formed on the horizontal section of the light source mounting plate 17. A fourth bolt 21 passes through the fourth oblong hole 20 on the horizontal section of the light source mounting plate 17 and is tightened onto the illumination light source 6, thus installing the illumination light source 6 onto the light source mounting plate 17. Loosening the third bolt 19 and the fourth bolt 21 allows adjustment of their relative positions in the third oblong hole 18 and the fourth oblong hole 20, respectively, enabling adjustment of the vertical and front-back positions of the illumination light source 6 to ensure it is positioned accurately for shooting.

[0024] The side plate 1 has a horizontally extending outward mounting protrusion 22 at its bottom. The main bracket 9 also includes a horizontally extending main mounting base plate 23. The main mounting plate 10 and the main mounting base plate 23 of the main bracket 9 form an L-shape. The main mounting base plate 23 has a fifth oblong hole 24 extending in the left-right direction. A fifth bolt 25 passes through the fifth oblong hole 24 of the main mounting base plate 23 and is tightened onto the mounting protrusion 22 to install the main bracket 9 onto the mounting protrusion 22. Loosening the fifth bolt 25 allows adjustment of its relative position in the fifth oblong hole 24, thereby adjusting the position of the main bracket 9 in the left-right direction and ensuring the accuracy of the overall position of the end face detection assembly.

[0025] Before operation, the positions of the detection camera 5 and the illumination light source 6 are adjusted. The cigarette pack 26 is conveyed from back to front through the exit conveyor channel of the cigarette packaging machine. When the cigarette pack 26 reaches the shooting window 4, it is illuminated downwards by the two illumination light sources 6 on the left and right, and the two detection cameras 5 on the left and right sides of the cigarette pack 26 take pictures respectively. Because the illumination light source 6 illuminates the end faces of the cigarette pack 26 from the side, it avoids the laser reflection caused by direct light sources, minimizing the area where detection features are obscured.

[0026] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements 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 cigarette package machine carton end face detection device, characterized in that: The detection device is installed at the outlet conveying channel of the cigarette packaging machine, and comprises left and right two side plates installed at the left and right sides of the outlet conveying channel respectively, and a detection channel for the cigarettes to pass through is formed between the two side plates. A shooting window is formed on each side plate, and the shooting windows on the two side plates are used for exposing the left and right two end faces of the cigarettes on the outlet conveying channel completely. An end face detection assembly is arranged on the outside of the shooting window on each side plate, and the end face detection assembly comprises a detection camera and an irradiation light source. The detection camera is installed on the side plate through a camera mounting support, and the detection camera is located obliquely above the shooting window. The camera head of the detection camera is inclined downward to face the detection window. The irradiation light source is installed on the side plate through a light source mounting support, and the irradiation light source is located above the shooting window and faces downward.

2. The cigarette package machine carton end face detection device according to claim 1, characterized in that: Each group of end face detection assemblies further comprises a main support installed on the side plate, and the main support comprises a vertically extending main mounting plate. The camera mounting support and the light source mounting support are detachably installed on the main mounting plate of the main support.

3. A cigarette package machine carton end face detection device as claimed in claim 2, characterized in that: The camera mounting support comprises a camera mounting base plate and a camera mounting plate connected with each other. The camera mounting base plate is provided with a first waist-shaped hole extending in the vertical direction. The first bolt is passed through the first waist-shaped hole and screwed on the main mounting plate to realize the installation of the camera mounting base plate and the main mounting plate. The camera mounting plate is bent outward and upward from one end of the camera mounting base plate. The camera mounting plate is provided with a second waist-shaped hole extending in the left-right direction. The second bolt is passed through the second waist-shaped hole and screwed on the detection camera to realize the installation of the detection camera and the camera mounting plate.

4. The cigarette package machine carton end face detection device according to claim 2, characterized in that: The light source mounting support is an L-shaped light source mounting plate. The main mounting plate is provided with a third waist-shaped hole extending in the vertical direction. The third bolt is passed through the third waist-shaped hole on the main mounting plate and screwed on the vertical section of the light source mounting plate to realize the installation of the light source mounting plate and the main mounting plate. The horizontal section of the light source mounting plate is provided with a fourth waist-shaped hole extending in the front-back direction. The fourth bolt is passed through the fourth waist-shaped hole of the horizontal section of the light source mounting plate and screwed on the irradiation light source to realize the installation of the irradiation light source and the light source mounting plate.

5. The cigarette package machine carton end face detection device according to claim 2, characterized in that: The side plate is provided with a horizontally outward extending mounting protruding plate at the bottom. The main support further comprises a horizontally extending main mounting bottom plate. The main mounting plate and the main mounting bottom plate of the main support form an L shape. The main mounting bottom plate is provided with a fifth waist-shaped hole extending in the left-right direction. The fifth bolt is passed through the fifth waist-shaped hole of the main mounting bottom plate and screwed on the mounting protruding plate to realize the installation of the main support and the mounting protruding plate.

6. A cigarette package machine carton end face detection device as claimed in claim 1, characterized in that: The irradiation light source is a strip-shaped light source extending in the front-back direction.

7. The cigarette package machine carton end face detection device according to claim 1, characterized in that: The inlet section of the detection channel formed by the two side plates is an outwardly expanding guide section.

Images