Cigarette end face detection device

Abstract

The utility model discloses a cigarette end face detection device, and relates to the technical field of cigarette production. Comprising a camera, an outer-row mirror surface which is arranged in front of a lens of the camera and is used for providing cigarette images on an outer-row wheel for the lens of the camera, and an inner-row mirror surface which is arranged in front of the lens of the camera and is used for providing cigarette images on an inner-row wheel for the lens of the camera. According to the cigarette end face detection device, one camera can shoot and obtain cigarette images on the inner row wheel and the outer row wheel at the same time, the image recognition detection device can correspondingly detect the cigarette end faces on the inner row wheel and the outer row wheel at the same time, the detection efficiency is high, the detection result is more accurate, the structure is simpler, and the cost is lower.

Description

Technical Field

[0001] The utility model relates to the technical field of cigarette production, in particular to a cigarette end face detection device. Background Art

[0002] In the modern cigarette production process, the production speed is getting faster and faster, and the enterprise's requirements for product quality are also getting stricter. The quality of the cigarette appearance affects consumers' choices to a certain extent. However, in the actual cigarette production, due to machine failures, cigarettes are prone to defective products such as stains, cigarette paper breakage, cigarette stems piercing through, poor splicing, no printing, printing position deviation, ink pollution, etc. With the development of computer software and hardware technologies, and the improvement of machine vision software and hardware, using the method of machine vision to detect the appearance quality of cigarette sticks has become a trend.

[0003] Without changing the structure of the cigarette making machine, in order to better detect the appearance defects of cigarette sticks, there is currently a method of installing a camera on the transfer wheel of the cigarette making machine for detection. After the cigarette making machine attaches the filter tip to obtain double-length cigarette sticks, after the double-length cigarette sticks are cut into normal cigarette sticks, appearance defects are likely to occur. It is found through investigation that most of the current equipment for detecting the end faces of the cut cigarette sticks uses optoelectronic devices for detection, and this type of detection method can only detect whether there is a missing filter tip; or multiple groups of cameras are misaligned to detect the end faces of the cigarette sticks on the inner and outer smoke discharge grooves of the drum, but it has extremely high requirements for the installation space inside the cigarette making machine. Summary of the Utility Model

[0004] The utility model provides a cigarette end face detection device. One camera can simultaneously capture the images of the cigarette sticks on the inner and outer discharge wheels, and the image recognition and detection device can correspondingly detect the end faces of the cigarette sticks on the inner and outer discharge wheels at the same time. The detection efficiency is high, the detection result is more accurate, the structure is simpler, and the cost is lower to solve the above technical problems.

[0005] The technical solution adopted by the utility model to solve the above problems is: providing a cigarette end face detection device, which includes a camera, an outer discharge mirror surface arranged in front of the camera lens and used to provide the image of the cigarette stick on the outer discharge wheel to the camera lens, and an inner discharge mirror surface arranged in front of the camera lens and used to provide the image of the cigarette stick on the inner discharge wheel to the camera lens.

[0006] Further, the camera is installed between the inner and outer discharge wheels.

[0007] Further, the camera lens is arranged vertically upward, the outer discharge mirror surface and the inner discharge mirror surface are both arranged directly above the camera lens, and the upper end of the outer discharge mirror surface is inclined towards the outer discharge wheel side, and the upper end of the inner discharge mirror surface is inclined towards the inner discharge wheel side.

[0008] Further, it further includes a mirror mounting bracket. Both the outer row of mirrors and the inner row of mirrors are fixedly mounted on the mirror mounting bracket, and the outer row of mirrors and the inner row of mirrors are also symmetrical to each other.

[0009] Further, it further includes a housing for accommodating and mounting the camera, the outer row of mirrors, and the inner row of mirrors.

[0010] Further, the housing is arranged between the inner and outer rows of wheels, and viewing windows are provided on both the side wall of the housing facing the inner row of wheels and the side wall facing the outer row of wheels.

[0011] Further, light sources are provided at both viewing windows.

[0012] Further, an air outlet is provided on the housing, and a deflector is arranged outside the air outlet. The deflector is used to direct the flowing air to the outside of the viewing window.

[0013] Further, an air inlet is also provided on the housing, and an air inlet pipe and a gas supply device matching the air inlet pipe are connected at the air inlet.

[0014] Further, it further includes a fixing bracket. The housing is fixedly mounted on the side of the fixing bracket, and one end of the fixing bracket is fixed on the main frame of the cigarette making machine.

[0015] Advantages of the present utility model:

[0016] For a cigarette end face detection device of the present utility model, by arranging an inner row of mirrors and an outer row of mirrors in front of the lens of the camera, the inner row of mirrors image the cigarettes on the inner row of wheels, and the outer row of mirrors image the cigarettes on the outer row of wheels. Furthermore, the camera simultaneously acquires the cigarette images on the inner and outer rows of wheels, and detects defects on the cigarette end faces in the acquired images.

[0017] In this regard, the device effectively reduces the number of cameras used for taking images by setting a double - mirror structure, and does not reduce the detection and processing efficiency. Moreover, the overall structure of the entire device is optimized. Without changing the structure of the cigarette making machine, the device can also be installed between the inner and outer rows of wheels, with high practicality. Description of the Drawings

[0018] The drawings incorporated into the specification and constituting a part of the specification illustrate the embodiments of the present utility model and, together with the description, are used to explain the principles of the present utility model. In these drawings, similar reference numerals are used to represent similar elements. The following drawings are some embodiments of the present utility model, not all embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 It is the overall structure diagram of the cigarette end face detection device of this embodiment;

[0020] Figure 2 It is the installation structure diagram of the cigarette end face detection device of this embodiment;

[0021] 1 - Camera, 2 - Outer row mirror, 3 - Inner row mirror, 4 - Mirror mounting bracket, 5 - Housing, 6 - Window, 7 - Light source, 8 - Deflector, 9 - Air inlet, 10 - Fixed bracket;

[0022] 102 - Cigarette end face detection device, 103 - Inner row wheel, 104 - Outer row wheel. Specific implementation manner

[0023] In this specification, the orientation terms such as up, down, left, right, front, back, front face, back face, top, bottom, etc. mentioned or possibly mentioned are defined with respect to the structures shown in the respective drawings. The terms "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component. They are relative concepts and may therefore change accordingly depending on their different positions and different usage states. Therefore, these or other orientation terms should not be construed as restrictive terms.

[0024] Please refer to Figure 1 and Figure 2 A cigarette end face detection device according to a specific embodiment of the present utility model includes a housing 5, a camera 1, an outer row mirror 2, and an inner row mirror 3. The housing 5 is a cuboid. The camera 1 is vertically installed at the middle and lower part inside the housing 5, and the lens of the camera 1 is set upwards. A mirror mounting bracket 4 in the shape of a triangle and arranged upside down is also fixedly installed at the top of the housing 5. The outer row mirror 2 and the inner row mirror 3 are respectively fixedly installed on both sides and inclined side faces of the mirror mounting bracket 4. Moreover, transparent windows 6 are provided in the upper regions of the upper right front side and the upper left rear side of the housing 5.

[0025] In this regard, when a technician installs and sets the cigarette end face detection device of this embodiment between the inner and outer row wheels of a cigarette making machine, and makes the windows 6 on both sides of the housing 5 face the side ends of the inner row wheel and the outer row wheel respectively, the cigarette images on the inner row wheel can be presented on the inner row mirror 3, and the cigarette images on the inner row wheel will also be presented on the outer row mirror 2; while the camera 1 can simultaneously capture and obtain two sets of cigarette images on the inner row mirror 3 and the outer row mirror 2, and send the two sets of obtained cigarette images to relevant image detection devices to identify and detect the cigarette end face parts in the images, thereby achieving the purpose of simultaneously detecting the quality of the end faces of the cigarettes on the inner and outer row wheels.

[0026] In this embodiment, the camera 1 is an industrial camera 1 to improve the quality of image acquisition; the outer row mirror 2 and the inner row mirror 3 are symmetrical to each other so that the image distortions in the two mirrors are as similar as possible, facilitating the detection of the two sets of cigarette images by the same image detection device.

[0027] In addition, to facilitate the camera 1 in obtaining clear images, a plurality of light sources 7 are further arranged inside the viewing window 6; the light sources 7 are arranged facing outside the viewing window 6 and are used to increase the brightness at the position of the cigarette to be photographed.

[0028] Furthermore, in this embodiment, air outlets are respectively formed at the left and right sides of the upper end of the housing 5, and a deflector 8 that cooperates with the housing 5 to form only a downward air guiding opening is further arranged at the air outlet; at the same time, an air inlet 9 is installed at the lower part of the right front side of the housing 5, and the air inlet 9 is used to connect to the outlet end of the air inlet pipe of the air supply device.

[0029] In this regard, the technician can regularly open the air supply device to supply clean gas into the housing 5. When the housing 5 is filled with gas, the excess gas will flow downward from the two air outlets, thereby forming an air flow on the outer surfaces of the two viewing windows 6 to regularly blow the outer surfaces of the viewing windows 6, keeping the outer surfaces of the viewing windows 6 clean, thereby preventing soot droplets from condensing on the outer surfaces of the viewing windows 6 and interfering with the image clarity, and affecting the image quality.

[0030] In this embodiment, the left front end of the fixing bracket 10 is fixedly installed on the main body structure of the cigarette making machine in a threaded detachable installation manner. The fixing bracket 10 is in a horizontal posture, and the right front end of the fixing bracket 10 extends between the inner row of wheels and the outer row of wheels; a plurality of screw holes are provided at the lower part of the left rear side of the housing 5, and a plurality of corresponding screw holes are also provided at the right front end of the fixing bracket 10. The housing 5 is fixedly installed at the right front end of the fixing bracket 10 in a threaded detachable installation manner, and the housing 5 is exactly located between the inner row of wheels and the outer row of wheels.

[0031] For the parts not mentioned above, the prior art is applicable.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cigarette end face detection device, characterized in that: The invention comprises a camera (1), an outer mirror (2) arranged in front of the lens of the camera (1) and used to provide the lens of the camera (1) with images of cigarettes on an outer wheel, and an inner mirror (3) arranged in front of the lens of the camera (1) and used to provide the lens of the camera (1) with images of cigarettes on an inner wheel.

2. A cigarette end face detection device according to claim 1, characterized in that: The camera (1) is installed between the inner and outer row wheels.

3. A cigarette end face detection device as claimed in claim 2, characterized in that: The lens of the camera (1) is arranged vertically upward, and the outer mirror surface (2) and the inner mirror surface are both arranged directly above the lens of the camera (1), and the upper end of the outer mirror surface (2) is inclined toward the outer wheel side, and the upper end of the inner mirror surface is inclined toward the inner wheel side.

4. A cigarette end face detection device as claimed in claim 1, characterized in that: It also comprises a mirror mounting bracket (4), on which the outer row of mirrors (2) and the inner row of mirrors (3) are both fixedly mounted, and the outer row of mirrors (2) and the inner row of mirrors (3) are symmetrical to each other.

5. A cigarette end face detection device as claimed in claim 1, characterized in that: It also includes a housing (5) for accommodating and installing the camera (1), the outer row of mirrors (2), and the inner row of mirrors (3).

6. A cigarette end face detection device as claimed in claim 5, characterized in that: The housing (5) is arranged between the inner and outer row wheels, and windows (6) are provided on the housing wall of the housing (5) on one side facing the inner row wheel and on the housing wall of the housing (5) on the other side facing the outer row wheel.

7. A cigarette end face detection device according to claim 6, characterized in that: Light sources (7) are provided at both viewing windows (6).

8. A cigarette end face detection device as claimed in claim 5, characterized in that: The shell (5) is provided with an air outlet, and a guide plate (8) is provided outside the air outlet. The guide plate (8) is used to guide the flowing air to the outside of the viewing window (6).

9. A cigarette end face detection device as claimed in claim 8, characterized in that: The housing (5) is also provided with an air inlet (9), to which an air inlet pipeline and an air supply device matching the air inlet pipeline are connected.

10. A cigarette end face detection device as claimed in claim 5, characterized in that: It also comprises a fixed bracket (10), the housing (5) is fixedly mounted on the side of the fixed bracket (10), and one end of the fixed bracket (10) is fixed on the main frame of the cigarette making machine.

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