CN113109361A - Cigarette carton appearance detection device and method with oil seal paper and carton independently illuminated - Google Patents
Cigarette carton appearance detection device and method with oil seal paper and carton independently illuminated Download PDFInfo
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- CN113109361A CN113109361A CN202110465527.1A CN202110465527A CN113109361A CN 113109361 A CN113109361 A CN 113109361A CN 202110465527 A CN202110465527 A CN 202110465527A CN 113109361 A CN113109361 A CN 113109361A
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- light source
- cigarette
- oil seal
- paper
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
- G01N21/8901—Optical details; Scanning details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
- B07C5/342—Sorting according to other particular properties according to optical properties, e.g. colour
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
- G01N21/892—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the flaw, defect or object feature examined
Abstract
The invention relates to a cigarette carton appearance detection device and method with oil seal paper and carton independent lighting, belonging to the field of product quality detection equipment; the side surface of the conveying belt is provided with an oil sealing paper light source group and a strip box light source group, the oil sealing paper light source group and the strip box light source group are correspondingly provided with a trigger sensor for detecting the in-place of the cigarette strip and a camera for shooting the cigarette strip, an image obtained by shooting the cigarette strip by the camera is transmitted to a graphic processor for processing and analyzing, a detection result is sent to a controller, and the control connection is provided with a rejection unit for rejecting unqualified cigarette strips; according to the invention, under the condition that the optical characteristics of the oil seal paper and the carton paper are greatly different, the oil seal paper and the carton are independently illuminated, the same camera is adopted for independent shooting, so that the camera can shoot clear images, after the images are processed and analyzed by the image processor, the unqualified cigarette strips can be removed by the removing unit controlled by the controller, and the detection is more stable and reliable.
Description
Technical Field
The invention relates to a cigarette carton appearance detection device and method with oil seal paper and carton independent lighting, and belongs to the field of product quality detection equipment.
Background
The outer layer of the package of the cigarette strip is a transparent film, which is called as oil seal paper for short herein, and is used for sealing package and highly transparent and visible to the trademark printing pattern of the inner layer of the carton packing paper, and the inner layer of the package of the cigarette strip is carton paper. The oil seal paper and the carton are important quality detection objects of the cigarette visual appearance detection system.
At present, a cigarette visual appearance detection system adopts a mixed illumination method that the same light source illuminates oil seal paper and a strip box simultaneously and shoots simultaneously, and one or more images are obtained and mixed processing detection is carried out on the oil seal paper and the strip box simultaneously.
The optical characteristics of the existing oil seal paper and carton paper are greatly different, the oil seal paper is made of a high-light-transmission film material, and the carton paper is almost light-tight and printed with visible trademark patterns. Only illuminating and shooting the oil seal paper has certain difficulty, and the two illuminating and shooting simultaneously are a great problem. Options for the illumination source are: the requirements of the two materials on the illumination light source are greatly different, and the requirements of a plurality of options are even completely opposite. Two kinds of detection object throw light on simultaneously and shoot, and the illuminating effect of the barrel is just poor to the illuminating effect of the preferred then oil blanket paper of erroneous tendency, and the illuminating effect of the preferred then oil blanket paper of the illuminating effect of the erroneous tendency barrel is just poor otherwise.
Because the great mixed illumination of the detection degree of difficulty of oil blanket paper generally adopts the effectual lighting methods of biased oil blanket paper, must compromise barrel illumination simultaneously, but the lighting effects of oil blanket paper this moment is still not good, and characteristics such as dog-ear, hem, transparent stay wire, overlap joint of oil blanket paper are unclear under the mixed illumination light source, have the interference of the trade mark pattern of barrel again, and the detection degree of difficulty is big. The pattern of the carton paper used as a secondary lighting object is not clear, the interference of the characteristics of the oil sealing paper is avoided, and the detection difficulty is low.
The existing method for simultaneously mixing and illuminating the oil sealing paper and the carton has the defects of high detection difficulty of the oil sealing paper, difficulty in detection of the carton, instability and unreliability of detection of the oil sealing paper and the carton, difficulty in setting of a detection algorithm, more missing detection and more wrong removal of cigarettes with quality defects.
Disclosure of Invention
In order to solve the problems in the background art, the oil seal paper and the carton are independently illuminated under the condition that the optical characteristics of the oil seal paper and the carton paper are greatly different, the same camera is adopted for independent shooting, so that the camera can shoot clear images, after the images are processed and analyzed by the image processor, the unqualified cigarette strips can be removed by the removing unit controlled by the controller, and the detection is more stable and reliable.
In order to overcome the problems in the background art and solve the problems, the invention is realized by the following technical scheme:
the cigarette strip appearance detection device and method with the oil seal paper and the strip box independently illuminated comprises an oil seal paper light source group, a strip box light source group, a trigger sensor, a camera, a conveyer belt, a graphic processor, a controller and a rejection unit, the side surface of the conveying belt is provided with an oil sealing paper light source group and a strip box light source group, the oil sealing paper light source group and the strip box light source group are correspondingly provided with trigger sensors for detecting the in-place of the cigarette strips, and a camera for shooting the cigarette strip, the triggering sensor senses that the cigarette strip is in place and controls the oil seal paper light source group and the strip box light source group to be not lighted simultaneously through the controller, the oil seal paper light source group and the strip box light source group can be triggered to shoot through the controller after being lighted, an image shot by the camera is transmitted to the graphic processor for processing and analysis, and the detection result is sent to a controller, and the controller is connected with a rejection unit for rejecting unqualified tobacco strips.
Preferably, the oil seal paper light source group includes light source I, light source II, light source III, light source IV, light source I, light source II, light source III, light source IV set up along four upper and lower left and right sides symmetry of cigarette strip position in place, and the light source of upper and lower two positions relatively gives off on vertical position at the conveyer belt side, and two light sources of left and right sides relatively give off along cigarette strip direction of delivery level, and light source I, light source II, light source III, light source IV all link to each other with controller output port, guarantee that the light source evenly shines on the cigarette strip.
Preferably, barrel light source group includes light source V, light source VI, light source V and light source VI set up along the upper and lower both sides after the cigarette puts in place, and light source V sets up along horizontal position slope for the light source can both give off to the cigarette, and light source VI gives off at vertical position at the conveyer belt side.
Preferably, guide steel wires for guiding the tobacco rods are arranged on two sides of the conveying belt.
The appearance detection device of the cigarette rod independently illuminated by the oil-sealed paper and the carton as claimed in any one of the preceding claims, wherein the detection method comprises the following steps:
1. the conveyer belt transports the tobacco sticks at a constant speed, the tobacco sticks reach the trigger sensor, and the trigger sensor outputs signals to the controller;
2. the controller receives a signal transmitted by the trigger sensor, the controller is communicated with the oil seal paper light source group and the barrel light source group according to preset time to provide a lighting condition required by shooting for the camera, the controller controls the oil seal paper light source group to illuminate, the controller sends a shooting command to the camera, after the shooting is completed, the controller controls the oil seal paper light source group to extinguish, after the oil seal paper light source group is extinguished, the controller controls the barrel light source group to illuminate, the controller sends a shooting command to the camera, and after the shooting is completed, the controller controls the barrel light source group to extinguish;
3. the camera outputs the image to a graphic processor, and the graphic processor processes and analyzes the input image respectively;
4. the image processor processes and analyzes the image shot by the camera, judges whether the appearance detection of the cigarette is qualified or not, and outputs the final result to the controller.
The invention has the beneficial effects that:
according to the invention, under the condition that the optical characteristics of the oil seal paper and the carton paper are greatly different, the oil seal paper and the carton are independently illuminated, the same camera is adopted for independent shooting, so that the camera can shoot clear images, after the images are processed and analyzed by the image processor, the unqualified cigarette strips can be removed by the removing unit controlled by the controller, and the detection is more stable and reliable.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the control structure of the apparatus of the present invention;
FIG. 3 is a schematic view of the mixed lighting effect of the small end face of the tobacco rod;
FIG. 4 is a schematic view of folding the small end face of the tobacco rod with the oil-sealed paper;
FIG. 5 is a schematic view of a pattern on a small end face of a tobacco rod;
fig. 6 is a schematic view of a separate illumination image effect of a cartridge.
The reference numbers in the figures are: c1-camera, L1-light source I, L2-light source II, L3-light source III, L4-light source IV, L5-light source V, L6-light source VI, S1-oil seal paper trigger sensor, S2-strip box trigger sensor, 1-cigarette strip, 2-conveying belt, 3-guide steel wire, 4-graphic processor, 5-controller and 6-removing unit.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings to facilitate understanding of the skilled person.
As shown in fig. 1-6, the appearance detection device for cigarette 1 with independently illuminated oil seal paper and cigarette case comprises an oil seal paper light source set, a cigarette case light source set, a trigger sensor, a camera C1, a conveyor belt 2, a graphic processor 4, a controller 5 and a rejecting unit 6, wherein the side surface of the conveyor belt 2 is provided with the oil seal paper light source set and the cigarette case light source set, the oil seal paper light source set and the cigarette case light source set are correspondingly provided with the trigger sensor for detecting the in-place position of the cigarette 1 and the camera C1 for shooting the cigarette 1, the trigger sensor senses that the oil seal paper set and the cigarette case light source set are not illuminated at the same time by the controller 5 after the cigarette is in-place, the oil seal paper set and the cigarette case light source set can be shot by the controller 5 through the trigger camera C1, images shot by the camera C1 are transmitted to the graphic processor 4 for processing and analyzing, and the detection result is transmitted to the controller 5, the control connection is provided with a rejecting unit 6 for rejecting unqualified tobacco sticks 1.
In this embodiment, the oil-sealed paper light source group includes light source il 1, light source il 2, light source iii L3, light source iv L4, is used for illumination when the oil-sealed paper is shot, light source il 1, light source il 2, light source iii L3, light source iv L4 are symmetrically arranged along four upper, lower, left and right positions of the position where the cigarette stick 1 is located, and the light sources at the upper and lower positions are relatively distributed on the side of the conveyor belt 2 at the vertical position, the two light sources at the left and right sides are relatively distributed horizontally along the conveying direction of the cigarette stick 1, and light source il 1, light source il 2, light source iii L3, light source iv L4 are all connected with the output port of the controller 5, so as to ensure that the light sources are uniformly irradiated on the.
The barrel light source group comprises a light source V L5 and a light source VI L6, and is used for lighting when the barrel shoots, the light source V L5 and the light source VI L6 are arranged along the upper side and the lower side of the cigarette strip 1 after being in place, and the light source V L5 is obliquely arranged along the horizontal position, so that the light source can be distributed to the cigarette strip 1, and the light source VI L6 is distributed at the vertical position on the side surface of the conveying belt 2.
In the embodiment, the trigger sensors include an oil-sealed paper trigger sensor S1 and a barrel trigger sensor S2, the oil-sealed paper trigger sensor S1 and the barrel trigger sensor S2 are arranged side by side, the oil-sealed paper trigger sensor S1 is used, the controller 5 switches on an oil-sealed paper light source group at set time and triggers the camera C1 to shoot when a cigarette 1 is detected, and the barrel trigger sensor S2 is used, and the controller 5 switches on a barrel light source group at set time and triggers the camera C1 to shoot when a cigarette 1 is detected.
And guide steel wires 3 used for guiding the tobacco rods 1 are arranged on two sides of the conveying belt 2.
The lighting options of the light source can be light color, light intensity, angle, directivity and light emitting area. The oil seal paper and the strip box can be respectively and independently provided with the light source groups according to respective optical characteristics and detection requirements, so that respective key characteristics are displayed most clearly. The oil seal paper and the strip box are shot and illuminated independently respectively.
The oil seal paper is made of a high-light-transmission film material, the oil seal paper has the characteristics of folding angles, folding edges, transparent pull lines, lap joints and the like, and is a light-reflecting bright line under the illumination of a light source, if the background is bright, the relative brightness of the light-reflecting bright line of the oil seal paper characteristic is reduced, unclear or even most of the light-reflecting bright line is invisible, and the strip box pattern is more clear than the oil seal bright line characteristic when the background is bright, so that the detection of the oil seal characteristic is interfered. Therefore, the oil seal paper light source group generally adopts a light source with colored light, small luminous surface, small scattering and low illumination intensity, and the darker the background is, the smaller the interference is, and the easier the detection of the bright line characteristic of the oil seal is. Therefore, the independent oil sealing paper illumination light source group is adopted for illumination, the illumination of a barrel is not taken into consideration, and the illumination effect of the oil sealing paper is obviously improved. The image effect of the independent illumination of the oil seal paper is close to that of a black-and-white reverse image of the schematic folding angle and folding edge of the oil seal paper on the small end face of the cigarette strip 1 in fig. 4.
The independent illumination of the light source group of the barrel group generally adopts a light source which is white light, has a slightly larger luminous surface, enough scattering and high illumination intensity. The barrel is no longer used as a secondary object in mixed lighting, the white light cannot cause color distortion, sufficient scattering exists, the illumination intensity is high, the trademark pattern of the barrel is clear, and the illumination angle is adjusted to reduce the oil seal paper and the surface reflection of the barrel. Fig. 5 is a schematic diagram of a pattern of a small-end-face carton of the cigarette rod 1, the actual effect of independent illumination of a light source group of the carton group is closer to that of fig. 6, and the effect of independent illumination of the carton is a schematic diagram of an image effect of independent illumination of the carton.
The oil seal paper light source group is generally lightened before the barrel light source group, and because the illumination light intensity of the oil seal paper light source group is low, the interference of brightness in attenuation periods of other light sources is easy to cause, and the interference of the illumination light intensity of the barrel light source group is neglected.
The oil seal paper and the barrel are respectively shot by the same camera C1 to obtain two corresponding images. The respective images are processed separately by the graphics processor 4, so that the total result is a failure as long as one of the items is a failure.
The shooting time interval of the camera C1 to the oil seal paper and the barrel is determined by the position interval of the oil seal paper trigger sensor S1 and the barrel trigger sensor S2 and the speed of the conveyer belt 2, and the time interval needs to meet the requirement of the response speed of the camera C1. The graphics processor 4 is selected to meet the timing requirements for detection and to allow sufficient response time for the controller 5 and the culling unit 6.
All detection surfaces or parts of the cigarette 1 can adopt independent lighting and shooting methods, and part of important detection surfaces or parts can also adopt independent lighting and shooting methods.
Different from the using method, the strip box light source group mainly detects the strip box, the detection effect of the strip box is met, the detection of the oil sealing paper part is considered, the detection difficulty of the oil sealing paper is high, another detection method under a light source is provided for the detection of the oil sealing paper, and the detection reliability of the oil sealing paper is further improved.
The detection method comprises the following steps:
1. the conveyer belt transports the cigarette 1 at a constant speed, the cigarette 1 reaches the trigger sensor, and the trigger sensor outputs a signal to the controller 5;
2. the controller 5 receives a signal transmitted by the trigger sensor, the controller 5 is connected with the oil seal paper light source group and the strip box light source group according to preset time to provide illumination conditions required by shooting for the camera C1, the controller 5 controls the oil seal paper light source group to illuminate, the controller 5 sends a shooting command to the camera C1, after shooting is completed, the controller 5 controls the oil seal paper light source group to extinguish, after the oil seal paper light source group extinguishes, the controller 5 controls the strip box light source group to illuminate, the controller sends a shooting command to the camera C1, and after shooting is completed, the controller 5 controls the strip box light source group to extinguish;
3. the camera C1 outputs the images to the graphic processor 4, and the graphic processor 4 processes and analyzes the input images respectively;
4. the image captured by the camera C1 is processed and analyzed by the graphic processor 4, and whether the appearance detection of the cigarette sticks is qualified or not is judged, and the final result is output to the controller 5.
In addition to the above embodiment, in step 2, the sequence of the illumination of the oil seal paper light source group and the illumination of the barrel light source group can be changed, the barrel light source group can also be turned on first, and the oil seal paper light source group is turned on after the barrel light source group is turned off.
According to the invention, under the condition that the optical characteristics of the oil seal paper and the carton paper are greatly different, the oil seal paper and the carton are independently illuminated, the same camera is adopted for independent shooting, so that the camera can shoot clear images, after the images are processed and analyzed by the image processor, the unqualified cigarette strips can be removed by the removing unit controlled by the controller, and the detection is more stable and reliable.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (5)
1. Oil blanket paper and independent cigarette strip outward appearance detection device who throws light on of barrel, its characterized in that: the cigarette strip appearance detection device and method with the oil seal paper and the strip box independently illuminated comprises an oil seal paper light source group, a strip box light source group, a trigger sensor, a camera, a conveyer belt, a graphic processor, a controller and a rejection unit, the side surface of the conveying belt is provided with an oil sealing paper light source group and a strip box light source group, the oil sealing paper light source group and the strip box light source group are correspondingly provided with trigger sensors for detecting the in-place of the cigarette strips, and a camera for shooting the cigarette strip, the triggering sensor senses that the cigarette strip is in place and controls the oil seal paper light source group and the strip box light source group to be not lighted simultaneously through the controller, the oil seal paper light source group and the strip box light source group can be triggered to shoot through the controller after being lighted, an image shot by the camera is transmitted to the graphic processor for processing and analysis, and the detection result is sent to a controller, and the controller is connected with a rejection unit for rejecting unqualified tobacco strips.
2. The oil-sealed paper and carton independent lighting cigarette carton appearance detection device according to claim 1, characterized in that: the oil seal paper light source group comprises a light source I, a light source II, a light source III and a light source IV, wherein the light source I, the light source II, the light source III and the light source IV are symmetrically arranged along the upper position, the lower position, the left position and the right position of the cigarette strip in-place position, the light sources at the upper position and the lower position are distributed relatively on the side surface of the conveying belt at the vertical position, the left light source and the right light source are distributed relatively along the horizontal direction of the cigarette strip conveying direction, the light source I, the light source II, the light source III and the light source IV are all connected with.
3. The oil-sealed paper and carton independent lighting cigarette appearance detection device according to claim 1 or 2, characterized in that: the strip box light source group comprises a light source V and a light source VI, wherein the light source V and the light source VI are arranged along the upper side and the lower side of the cigarette strip after the cigarette strip is in place, the light source V is obliquely arranged along the horizontal position, so that the light source can be distributed to the cigarette strip, and the light source VI is distributed at the vertical position on the side face of the conveying belt.
4. The cigarette appearance detection device with the oil seal paper and the carton independently illuminated according to claim 3, characterized in that: and guide steel wires for guiding the tobacco rods are arranged on two sides of the conveying belt.
5. The cigarette carton appearance detection method with the oil seal paper and the carton independently illuminated is characterized in that: the appearance detection device of the cigarette rod independently illuminated by the oil-sealed paper and the carton as claimed in any one of the preceding claims, wherein the detection method comprises the following steps:
1. the conveyer belt transports the tobacco sticks at a constant speed, the tobacco sticks reach the trigger sensor, and the trigger sensor outputs signals to the controller;
2. the controller receives a signal transmitted by the trigger sensor, the controller is communicated with the oil seal paper light source group and the barrel light source group according to preset time to provide a lighting condition required by shooting for the camera, the controller controls the oil seal paper light source group to illuminate, the controller sends a shooting command to the camera, after the shooting is completed, the controller controls the oil seal paper light source group to extinguish, after the oil seal paper light source group is extinguished, the controller controls the barrel light source group to illuminate, the controller sends a shooting command to the camera, and after the shooting is completed, the controller controls the barrel light source group to extinguish;
3. the camera outputs the image to a graphic processor, and the graphic processor processes and analyzes the input image respectively;
4. the image processor processes and analyzes the image shot by the camera, judges whether the appearance detection of the cigarette is qualified or not, and outputs the final result to the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110465527.1A CN113109361A (en) | 2021-04-28 | 2021-04-28 | Cigarette carton appearance detection device and method with oil seal paper and carton independently illuminated |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110465527.1A CN113109361A (en) | 2021-04-28 | 2021-04-28 | Cigarette carton appearance detection device and method with oil seal paper and carton independently illuminated |
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| CN202110465527.1A Pending CN113109361A (en) | 2021-04-28 | 2021-04-28 | Cigarette carton appearance detection device and method with oil seal paper and carton independently illuminated |
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