CN216301584U - Cigarette packet detection device based on vision - Google Patents
Cigarette packet detection device based on vision Download PDFInfo
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- CN216301584U CN216301584U CN202122787068.7U CN202122787068U CN216301584U CN 216301584 U CN216301584 U CN 216301584U CN 202122787068 U CN202122787068 U CN 202122787068U CN 216301584 U CN216301584 U CN 216301584U
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Abstract
The utility model provides a cigarette packet detection device based on vision, which comprises: the cigarette packet detection sensor is arranged at the cigarette packet output port; the detection control unit is connected with the cigarette packet detection sensor and used for receiving cigarette packet detection signals of the cigarette packet detection sensor and sending out trigger signals for image acquisition; the image acquisition unit is connected with the detection control unit and executes image acquisition action according to the trigger signal; the image acquisition unit comprises at least two linear light sources, at least two surface light sources and at least two shooting devices; the line light source, the surface light source and the shooting equipment are respectively arranged on two sides of the cigarette packet conveying path. The utility model can detect the packaging and printing of the upper and lower surfaces of the cigarette packet, can also detect the damage and the wrinkle of the transparent paper, and has wide detection range.
Description
Technical Field
The utility model belongs to the technical field of cigarette packet detection, relates to a detection device, and particularly relates to a cigarette packet detection device based on vision.
Background
With the increasing competition of tobacco products, the quality requirements of tobacco products for each tobacco product manufacturer are also increasing. Currently, before a small cigarette packet is wrapped with transparent paper, the packaging appearance quality detection is carried out when the small cigarette packet is just formed. However, the small cigarette packet needs to be conveyed through a longer channel from the forming to the transparent paper packaging, and in the conveying process, the appearance defects of small packet edge warping, abrasion and the like exist; in addition, most of the existing on-line detection methods for small cigarette packets in cigarette factories usually adopt mechanical, photoelectric and black-white imaging detection, have low detection precision, can only detect large folds of transparent paper, and cannot detect and judge defects such as breakage or printed body on the surfaces of the cigarette packets.
Therefore, how to provide a cigarette packet detection device based on vision to solve the defects that the prior art cannot detect the defects of cigarette packets more accurately and comprehensively becomes a technical problem to be solved urgently by technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
In view of the above drawbacks of the prior art, an object of the present invention is to provide a cigarette packet inspection device based on vision, which is used to solve the problem that the prior art cannot detect the defects of cigarette packets more accurately and comprehensively.
To achieve the above and other related objects, an aspect of the present invention provides a vision-based cigarette packet detecting device, including: the cigarette packet detection sensor is arranged at the cigarette packet output port; the detection control unit is connected with the cigarette packet detection sensor and used for receiving cigarette packet detection signals of the cigarette packet detection sensor and sending out trigger signals for image acquisition; the image acquisition unit is connected with the detection control unit and executes image acquisition action according to the trigger signal; the image acquisition unit comprises at least two linear light sources, at least two surface light sources and at least two shooting devices; the line light source, the surface light source and the shooting equipment are respectively arranged on two sides of the cigarette packet conveying path; the line light source is used for supplementing light along the horizontal plane of the cigarette packet, and the surface light source is used for shooting and lighting of the shooting equipment.
In an embodiment of the present invention, the line light source is a red line light source, and is configured to irradiate the transparent paper of the cigarette packet to illuminate at least one defect of a warped edge of the transparent paper, a wrinkle of the transparent paper, a breakage of the transparent paper, or a transparent protrusion.
In an embodiment of the present invention, the photographing devices are respectively disposed on an upper surface and a lower surface of the cigarette packet, and photograph at least one defect of an upper surface breakage, a wrinkle, a poor printing, a lack of a stay wire, or a position deviation of the stay wire of the cigarette packet, and photograph at least one defect of a lower surface breakage, a wrinkle, a poor printing, a lack of a stay wire, or a position deviation of the stay wire of the cigarette packet.
In an embodiment of the present invention, the cigarette packet detecting device based on vision further includes: the logic control unit is connected with the detection control unit and used for determining defective cigarette packets to be eliminated according to the image analysis result of the detection control unit; and the cigarette packet removing unit is connected with the logic control unit and is used for executing removing action according to the determined defective cigarette packet to be removed.
In an embodiment of the present invention, the cigarette packet rejecting unit is disposed at a packet stacking rejecting port of a channel of a cigarette packet packaging machine.
In an embodiment of the present invention, the cigarette packet detecting device based on vision further includes: mounting a bracket; the shooting equipment, the line light source and the surface light source are all fixed at the outlet of the transparent paper forming wheel of the small cigarette packet and the combination position of the front end guide groove strip and the rear end guide groove strip through corresponding mounting brackets.
In an embodiment of the present invention, the line light source is mounted and fixed on the upper surface and the lower surface of the rear end guide groove strip; the surface light source and the shooting device are fixed on the upper side face and the lower side face of the front end guide groove strip.
In an embodiment of the utility model, the human-computer interaction unit is connected to the detection control unit, and is configured to at least one of set a picture region, set a detection abnormal threshold, or switch a brand specification.
As described above, the cigarette packet detection device based on vision of the present invention has the following beneficial effects:
the utility model provides a novel visual detection device for the transparency and the appearance of a small cigarette packet by adopting the principle of machine color visual detection, which can detect the defects of packaging, printing and the like of the upper surface and the lower surface of the cigarette packet, can detect the defects of breakage, folding and the like of transparent paper and has a wide detection range.
Drawings
Fig. 1 is a schematic structural diagram of a cigarette packet inspection device based on vision in an embodiment of the utility model.
Fig. 2 is a structural connection diagram of the cigarette packet inspection device based on vision in an embodiment of the utility model.
Fig. 3 is a diagram illustrating an image acquisition structure of the cigarette packet inspection device based on vision in an embodiment of the present invention.
Fig. 4 is a schematic flow chart illustrating an implementation principle of the cigarette packet inspection device based on vision in an embodiment of the utility model.
Description of the element reference numerals
1 cigarette packet detection sensor
2 detection control unit
3 image acquisition unit
31 transparent paper forming wheel
32 front end channel strip
33 rear end channel strip
34A tobacco bale horizontal plane upper line light source
34B tobacco bale horizontal plane below line light source
35A upper surface light source
35B lower aspect light Source
36A top color camera
36B lower color camera
37 mounting bracket
4 logic control unit
5 cigarette packet removing unit
6 human-computer interaction unit
S11-S12
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The utility model is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the drawings only show the components related to the present invention rather than the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.
The cigarette packet detection device based on vision can detect the packaging and printing of the upper surface and the lower surface of a cigarette packet, can also detect the damage and the crease of transparent paper, and has a wide detection range.
The principle and implementation of the cigarette packet inspection device based on vision will be described in detail below with reference to fig. 1 to 4, so that those skilled in the art can understand the cigarette packet inspection device based on vision without creative work.
Please refer to fig. 1, which is a schematic structural diagram of a cigarette packet inspection device based on vision according to an embodiment of the present invention. As shown in fig. 1, the cigarette packet detection device based on vision includes: tobacco bale detection sensor 1, detection control unit 2 and image acquisition unit 3.
The cigarette packet detection sensor 1 is arranged at a cigarette packet output port.
The detection control unit 2 is connected with the cigarette packet detection sensor 1, and is used for receiving cigarette packet detection signals of the cigarette packet detection sensor 1 and sending out trigger signals for image acquisition.
The image acquisition unit 3 is connected with the detection control unit 2 and executes image acquisition action according to the trigger signal; the image acquisition unit comprises at least two linear light sources, at least two surface light sources and at least two shooting devices; the line light source, the surface light source and the shooting equipment are respectively arranged on two sides of the cigarette packet conveying path; the line light source is used for supplementing light along the horizontal plane of the cigarette packet, and the surface light source is used for shooting and lighting of the shooting equipment.
Please refer to fig. 2, which is a structural connection diagram of a cigarette packet inspection device based on vision according to an embodiment of the present invention. As shown in fig. 2, in an embodiment, the vision-based cigarette packet detection device includes: the tobacco bale detection device comprises a tobacco bale detection sensor 1, a detection control unit 2, an image acquisition unit 3, a logic control unit 4, a tobacco bale removing unit 5 and a human-computer interaction unit 6.
The logic control unit 4 is connected with the detection control unit 2 and is used for determining defective tobacco packets to be removed according to the image analysis result of the detection control unit 2.
The tobacco bale removing unit 5 is connected with the logic control unit 4 and is used for executing removing actions according to the determined defective tobacco bales to be removed.
The human-computer interaction unit 6 is connected with the detection control unit 2 and is used for at least one of setting of picture areas, setting of detection abnormal threshold values or switching of brand specifications.
Please refer to fig. 3, which is a diagram illustrating an image capturing structure of a cigarette packet inspecting apparatus based on vision according to an embodiment of the present invention. As shown in fig. 3, the installation position of the small cigarette packet transparent and the visual detection structure of the packet appearance is presented.
In an embodiment, the shooting devices are respectively disposed on the upper surface and the lower surface of the cigarette packet to shoot at least one defect of upper surface breakage, wrinkle, poor printing, lack of pull wire or position deviation of pull wire of the cigarette packet and at least one defect of lower surface breakage, wrinkle, poor printing, lack of pull wire or position deviation of pull wire of the cigarette packet, such as the upper color camera 36A and the lower color camera 36B in fig. 3.
In an embodiment, the line light source 34A above the level of the cigarette packet and the line light source 34B below the level of the cigarette packet are red line light sources, and are used for irradiating the transparent paper of the cigarette packet to illuminate at least one defect of edge warping of the transparent paper, wrinkle of the transparent paper, breakage of the transparent paper or transparent protrusion.
In one embodiment, the vision-based cigarette packet detection device further includes: a bracket 37 is mounted.
The shooting equipment, the line light source and the surface light source are all fixed at the outlet of the transparent paper forming wheel of the small cigarette packet and the combination position of the front end guide groove strip and the rear end guide groove strip through corresponding mounting brackets 37.
In one embodiment, the line light source is fixedly mounted on the upper surface and the lower surface of the rear end guide groove strip; the surface light source and the shooting device are fixed on the upper side face and the lower side face of the front end guide groove strip.
Specifically, an upper industrial color camera set and a lower industrial color camera set (36A, 36B), an upper line light source set and a lower line light source set (34A, 34B) on the horizontal plane of the cigarette packet, an upper surface light source set and a lower surface light source set (35A, 35B) on the horizontal plane of the cigarette packet are installed at the combination positions of the outlet of the small box transparent paper forming wheel 31, the front end guide groove strip 32 and the rear end guide groove strip 33 through corresponding installation supports 37, the limitation of field installation equipment is considered, and in practical application, the upper red line light source set and the lower red line light source set are respectively and tightly installed on the upper surface and the lower surface of the rear end guide groove strip 33 through screws; the upper surface light source 35A, the lower surface light source 35B, the upper color camera 36A and the lower color camera 36B are fixed on the upper side surface and the lower side surface of the guide groove strip at the front (2) end through corresponding mounting frames.
In one embodiment, the cigarette packet rejecting unit is arranged at a packet stacking rejecting port of the channel of the cigarette packet packaging machine.
Specifically, the operating principle of the cigarette packet detection device based on vision is as follows:
the red line light source 34A and the lower red line light source 34B on the rear end guide groove strip 33 of the small cigarette packet and close to the horizontal plane of the small cigarette packet perform horizontal light supplement along the horizontal plane of the small cigarette packet, and the function of the light supplement is that when at least one defect of transparent paper warping, transparent paper folding, transparent paper damage or transparent paper protrusion occurs in the small cigarette packet passing through the area, the corresponding line light source can illuminate the red color of the small cigarette packet, so that image acquisition and identification are facilitated. An upper surface light source 35A and a lower surface light source 35B on the side surface of the guide groove strip at the front end of the small cigarette packet are used for respectively corresponding to an upper color camera 36A and a lower color camera 36B for picture taking and illumination.
When the cigarette packet synchronous in-place sensor (4) detects output, the IO control unit and the image acquisition unit start to work, the upper surface and the lower surface of the small cigarette packet are acquired through the color cameras (7) and (10), the image processing unit and the programmable industrial personal computer are given, the acquired images of the small cigarette packet are analyzed, compared and distinguished, and corresponding state signals of the small cigarette packet are output.
Tobacco bale detection sensor 1, for example the synchronous sensor that targets in place of tobacco bale is according to coming material tobacco bale signal output, and output primary signal when coming a tobacco bale, and tobacco bale detected signal, and this tobacco bale detected signal directly conveys detection control unit 2 simultaneously, and for example, detection control unit 2 is the industrial computer able to programme, and the industrial computer able to programme carries out two tunnel outputs through the IO mouth: one path of output control lights a line light source 34A above the level surface of the cigarette packet and an area light source 35A above the level surface of the cigarette packet, an upper color camera 36A picks up images while the light source is lighted, and the picked images are output to a programmable industrial personal computer for image processing; and the other path of output control lights a linear light source 34B below the horizontal plane of the cigarette packet and a lower light source 35B, a lower color camera 36B picks up images while the light sources are lighted, and the picked images are output to a programmable industrial personal computer for image processing. When a defective cigarette packet exists, the logic control unit 4 eliminates the defective cigarette packet at a CH channel overlapping packet eliminating port of a packaging machine equipment channel overlapping packet eliminating port of the cigarette packet through logic operation according to a received image analysis result in practical application, wherein the image analysis result comprises a defect signal and a corresponding host machine coding signal.
Specifically, a large number of defect pictures are obtained in advance aiming at least one defect of breakage, wrinkles, poor printing, lack of stay wires or deviation of stay wire positions of the upper surface and the lower surface of the cigarette packet, and then images acquired by a color camera are compared with the determined defect pictures for analysis, so that the matched defect type is determined.
Further, the image a is compared with the defect image a, the defect image b, and the defect image c, respectively. Firstly, acquiring and analyzing a texture image on the surface of an image A; secondly, performing segmentation processing on the acquired image A step by step to enable the surface defects of the cigarette packets to be classified according to the specific regional characteristics of the cigarette packets; thirdly, the target areas with defects such as breakage, wrinkles, poor printing, missing of the stay wires or off-tracking of the stay wire positions are further analyzed in the classification areas, so that the range is more accurate and precise. For example, by comparing the image data of the image a with the image data of the defect image a, the defect image b and the defect image c respectively, and determining that the image data of the image a is matched with the defect image a, the defect corresponding to the defect image a in the cigarette packet is known through the acquired image a.
Specifically, the linear light source may illuminate the occurrence of at least one defect of a warped edge of the transparency, a wrinkle of the transparency, a breakage of the transparency, or a protrusion of the transparent glass. In practical application, the deformation of the transparent paper causes the defect part to be illuminated, and the defect is judged to occur at a position with higher brightness through image recognition.
Please refer to fig. 4, which is a flowchart illustrating a principle of the vision-based cigarette packet detecting device according to an embodiment of the present invention. As shown in fig. 4, the implementation principle of the cigarette packet detection device based on vision specifically includes the following steps:
and S11, acquiring a cigarette packet detection signal of the cigarette packet detection sensor, and sending a trigger signal for image acquisition.
In one embodiment, the trigger signal includes a first trigger signal and a second trigger signal.
The first trigger signal is used for triggering a line light source and a surface light source which light one surface of the cigarette packet, and triggering shooting equipment on one surface of the cigarette packet to take pictures.
The second trigger signal is used for triggering the line light source and the area light source which light the other surface of the cigarette packet, and triggering the shooting equipment on the other surface of the cigarette packet to take pictures.
S12, according to the trigger signal, using the image acquisition unit to execute the image acquisition action; the image acquisition unit comprises at least two linear light sources, at least two surface light sources and at least two shooting devices; the line light source, the surface light source and the shooting equipment are respectively arranged on two sides of the cigarette packet conveying path; the line light source is used for supplementing light along the horizontal plane of the cigarette packet, and the surface light source is used for shooting and lighting of the shooting equipment.
The cigarette packet detection device based on vision can realize the realization principle of the cigarette packet detection device based on vision, but the realization device of the realization principle of the cigarette packet detection device based on vision includes but is not limited to the structure of the cigarette packet detection device based on vision listed in the embodiment, and all structural modifications and substitutions in the prior art made according to the principle of the utility model are included in the protection scope of the utility model.
In summary, the cigarette packet inspection device based on vision provided by the utility model adopts the principle of machine color vision inspection, and provides a novel small cigarette packet transparent and packet appearance vision inspection device, which can not only detect the defects of packaging, printing and the like of the upper and lower surfaces of a cigarette packet, but also detect the defects of breakage, wrinkles and the like of transparent paper, and has a wide detection range. The utility model effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the utility model. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (8)
1. A vision-based cigarette packet detection device, characterized in that, the vision-based cigarette packet detection device includes:
the cigarette packet detection sensor is arranged at the cigarette packet output port;
the detection control unit is connected with the cigarette packet detection sensor and used for receiving cigarette packet detection signals of the cigarette packet detection sensor and sending out trigger signals for image acquisition;
the image acquisition unit is connected with the detection control unit and executes image acquisition action according to the trigger signal; the image acquisition unit comprises at least two linear light sources, at least two surface light sources and at least two shooting devices; the line light source, the surface light source and the shooting equipment are respectively arranged on two sides of the cigarette packet conveying path; the line light source is used for supplementing light along the horizontal plane of the cigarette packet, and the surface light source is used for shooting and lighting of the shooting equipment.
2. The vision-based cigarette packet detection device according to claim 1, characterized in that:
the line light source is a red line light source and is used for irradiating the transparent paper of the cigarette packet so as to illuminate at least one defect of transparent paper warping, transparent paper wrinkling, transparent paper breakage or transparent glass protrusion.
3. The vision-based cigarette packet detection device according to claim 1, characterized in that:
the shooting equipment is respectively arranged on the upper surface and the lower surface of the cigarette packet, shoots at least one defect of breakage, wrinkling, poor printing, stay wire missing or stay wire position deviation of the upper surface of the cigarette packet and shoots at least one defect of breakage, wrinkling, poor printing, stay wire missing or stay wire position deviation of the lower surface of the cigarette packet.
4. The vision-based cigarette packet inspection device according to claim 1, further comprising:
the logic control unit is connected with the detection control unit and used for determining defective cigarette packets to be eliminated according to the image analysis result of the detection control unit;
and the cigarette packet removing unit is connected with the logic control unit and is used for executing removing action according to the determined defective cigarette packet to be removed.
5. The vision-based cigarette packet inspection device according to claim 4, wherein the cigarette packet rejecting unit is provided at a cigarette packet packing machine equipment lane stack rejecting port.
6. The vision-based cigarette packet inspection device according to claim 1, further comprising: mounting a bracket;
the shooting equipment, the line light source and the surface light source are all fixed at the outlet of the transparent paper forming wheel of the small cigarette packet and the combination position of the front end guide groove strip and the rear end guide groove strip through corresponding mounting brackets.
7. The vision-based cigarette packet detection device according to claim 6, characterized in that:
the linear light source is fixedly mounted on the upper surface and the lower surface of the rear end guide groove strip; the surface light source and the shooting device are fixed on the upper side face and the lower side face of the front end guide groove strip.
8. The vision-based cigarette packet detection device according to claim 1, characterized in that:
and the human-computer interaction unit is connected with the detection control unit and is used for at least one of setting of a picture area, setting of a detection abnormal threshold value or switching of brand specifications.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122787068.7U CN216301584U (en) | 2021-11-15 | 2021-11-15 | Cigarette packet detection device based on vision |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122787068.7U CN216301584U (en) | 2021-11-15 | 2021-11-15 | Cigarette packet detection device based on vision |
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| Publication Number | Publication Date |
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| CN216301584U true CN216301584U (en) | 2022-04-15 |
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| CN202122787068.7U Active CN216301584U (en) | 2021-11-15 | 2021-11-15 | Cigarette packet detection device based on vision |
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| CN (1) | CN216301584U (en) |
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2021
- 2021-11-15 CN CN202122787068.7U patent/CN216301584U/en active Active
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