CN110987950A - Packaging quality detection system - Google Patents
Packaging quality detection system Download PDFInfo
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- CN110987950A CN110987950A CN201911346361.0A CN201911346361A CN110987950A CN 110987950 A CN110987950 A CN 110987950A CN 201911346361 A CN201911346361 A CN 201911346361A CN 110987950 A CN110987950 A CN 110987950A
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- 238000001514 detection method Methods 0.000 title claims abstract description 68
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 32
- 230000007246 mechanism Effects 0.000 claims abstract description 9
- 238000000926 separation method Methods 0.000 claims abstract description 9
- 238000003384 imaging method Methods 0.000 claims abstract description 7
- 230000000007 visual effect Effects 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 238000007689 inspection Methods 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 230000002159 abnormal effect Effects 0.000 claims description 6
- 238000013461 design Methods 0.000 claims description 4
- 239000013307 optical fiber Substances 0.000 claims description 3
- 230000005856 abnormality Effects 0.000 claims 1
- 238000005286 illumination Methods 0.000 abstract description 2
- 235000019504 cigarettes Nutrition 0.000 description 9
- 230000007547 defect Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 4
- 241000208125 Nicotiana Species 0.000 description 2
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000005022 packaging material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
Images
Classifications
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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
- B07C5/02—Measures preceding sorting, e.g. arranging articles in a stream orientating
-
- 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
- B07C5/3422—Sorting according to other particular properties according to optical properties, e.g. colour using video scanning devices, e.g. TV-cameras
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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
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
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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
- G01N21/898—Irregularities in textured or patterned surfaces, e.g. textiles, wood
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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
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
- G01N2021/8883—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges involving the calculation of gauges, generating models
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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
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
- G01N2021/8887—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges based on image processing techniques
-
- 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
- G01N2021/8909—Scan signal processing specially adapted for inspection of running sheets
Abstract
The invention relates to the technical field of detection, in particular to a packaging quality detection system, which comprises: the separation mechanism is used for accelerating and forcibly separating the object to be detected conveyed at high speed; the detection system comprises at least 4 cameras, a lighting device group and a photographing sensor and is used for carrying out visual imaging on 6 surfaces of the object to be detected; the rejecting device is used for rejecting the object to be detected with unqualified detection result at high speed; and when the photographing sensor detects a signal, the control system controls the lighting device group to strobe at a high speed according to the signal and controls the camera to photograph so as to detect the packaging quality of the object to be detected and drive the rejecting device to reject unqualified objects to be detected at a high speed. The invention adopts 4 cameras to detect 6 surfaces of the small bag, each camera can shoot two surfaces, thereby realizing the full-coverage detection of the small bag, and adopts a special stroboscopic LED light source with time-sharing exposure, thereby reducing the illumination interference among the cameras and improving the imaging quality.
Description
Technical Field
The invention relates to the technical field of detection, in particular to a packaging quality detection system.
Background
With the continuous progress of science and technology, the tobacco industry has higher and higher requirements on the cigarette packet packaging quality detection, and new challenges are provided for detection indexes, detection speed, six-surface full detection, reliability and the like. Products for detecting the small-package appearance package based on the imaging principle are widely applied to various cigarette factories, but most of the products are integrated by using existing foreign intelligent image sensors, the defects of low detection speed, incapability of checking reflective packaging materials, unfriendly interfaces, fussy brand switching and the like exist, many products are mistakenly rejected, or are idle due to the fact that the products basically have no good effect, and other products are designed based on an autonomous software algorithm.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the packaging quality detection system which is wide in application range, simple to use, high in detection speed and reliable in detection result.
In order to achieve the purpose, the invention adopts the following technical scheme:
a package quality detection system comprising: the separation mechanism comprises at least four belts and at least one thin steel wire, and is used for accelerating and forcibly separating the object to be detected conveyed at a high speed;
the detection system is arranged on the rear side of the separation mechanism and comprises at least 4 cameras, a lighting device group and a photographing sensor, the detection system is used for carrying out visual imaging on 6 surfaces of the object to be detected, and the photographing sensor is used for detecting the position of the object to be detected;
the rejecting device is arranged at the rear end of the detection system and comprises a high-speed electromagnetic valve, a rejecting sensor and a mechanical device, and the rejecting device is used for rejecting the to-be-detected object with an unqualified detection result at a high speed;
the control system comprises an industrial personal computer, a touch screen and a control panel, when the photographing sensor detects a signal, the control system controls the lighting device group to strobe at a high speed according to the signal and controls the camera to photograph so as to detect the packaging quality of the object to be detected and drive the rejecting device to reject the unqualified object to be detected at a high speed.
Preferably, the packaging quality detection system further comprises an alarm, the alarm is connected with the control system and used for alarming when abnormal conditions occur, and the abnormal conditions comprise light source faults, optical fiber faults, excessive rejection, detection interruption and camera abnormity.
Preferably, the belt sets up four faces about from top to bottom, the belt includes left side belt, right side belt, bottom belt and upper portion belt, the belt is used for cliping waits to examine the thing and accelerates the separation.
Preferably, the thin steel wire is arranged on the bottom belt and used for supporting the object to be detected so as to reduce the friction resistance.
Preferably, the cameras are high-precision color cameras, and each camera can shoot two surfaces of the object to be detected.
Preferably, the lighting device group is an LED light source, and the lighting device group is designed as a shadowless lamp and can illuminate at least 4 directions.
Preferably, the package quality detection system further includes a signal line.
Preferably, the packaging quality detection system adopts a modular design, and the control system, the detection system and the rejection system are mutually isolated and interact through signal lines.
Preferably, the control system further comprises a memory, and the memory stores qualified standard images of the object to be detected.
Preferably, the control system compares the received image of the object to be detected with the qualified standard image of the object to be detected, if the similarity and the image position coordinate are within the set tolerance, the packaging quality of the object to be detected is judged to be qualified, otherwise, the packaging quality of the object to be detected is judged to be unqualified.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention applies the comprehensive detection technology, not only can completely cover the traditional detection points, but also can extract the characteristics of all the points of the image, and carries out contrastive analysis by R, G, B three primary colors, thereby finding out the defect part, the detection resolution can reach 1mm x 1mm, the technology has large operation workload, is realized by depending on a customized high-efficiency optimization software algorithm and a multithreading processing technology, single-package detection can complete the calculation within 50 milliseconds, the processing capacity can reach more than 600 packages/minute, and can be matched with various existing medium-speed and high-speed packaging machines;
2. the self-learning capability is strong, the automatic extraction of the appearance characteristics can be completed only by normally passing a plurality of standard objects to be detected, and the system can continuously perform parameter optimization and correction without manual intervention in the subsequent online detection process. After the system is used for a long time, due to the change of light and dust, packaging boxes in different batches and the like, if a self-learning technology is not used, more false detections and missed detections are generated, so that manual adjustment is frequently needed, the self-learning function can automatically adjust and correct, and parameters are adjusted up or down according to the actual detection effect, the optimal configuration is achieved, the false rejection is reduced, and the problems can be effectively avoided without manual intervention in the whole process;
3. the invention uses the shadowless lamp principle for reference, adopts the diffuse reflection mode to uniformly illuminate the cigarette packet, thoroughly eliminates the problems of corner shadow and random reflection, avoids the occurrence of detection dead angles, ensures that each detection surface is clear and visible, establishes an effective image basis for comprehensive detection, and can detect the appearances of small packets made of various packaging materials, including the effective detection of reflective plastic surface packaging, integral laser packaging paper and the like. (ii) a
4. The invention adopts 4 cameras to detect the 6 surfaces of the small bag, each camera can shoot two surfaces, thereby realizing the full-coverage detection of the small bag, and adopts a special time-sharing exposure stroboscopic LED light source, thereby reducing the illumination interference among the cameras and improving the imaging quality;
5. the invention adopts an integrated framework formed by a plurality of modules, has small and compact integral structure, beautiful appearance, convenience, scientific, reasonable and universal electrical element selection and reasonable and standard electrical circuit wiring.
Drawings
FIG. 1 is a schematic structural view of the present invention;
description of the drawings: 1. a camera; 2. the lighting device group 3 is used for lighting the lighting device group; 4. a signal line; 5. a rejecting device; 6. removing the sensor; 7. an industrial personal computer; 8. a touch screen; 9. a control panel; 10. a separating mechanism; 11. an alarm.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
A package quality inspection system, characterized in that the package quality inspection system comprises:
the separating mechanism 10 comprises at least four belts and at least one thin steel wire, and the separating mechanism 4 is used for accelerating and forcibly separating the object to be detected conveyed at a high speed; the detection system is arranged on the rear side of the separation mechanism 10 and comprises at least 4 cameras 1, an illuminating device group 2 and a photographing sensor 3, the detection system is used for carrying out visual imaging on 6 surfaces of the object to be detected, and the photographing sensor 3 is used for detecting the position of the object to be detected; the removing device 5 is arranged at the rear end of the detection system, the removing device 5 comprises a high-speed electromagnetic valve, a removing sensor 6 and a mechanical device, and the removing device 5 is used for removing the objects to be detected with unqualified detection results at a high speed; control system, control system includes industrial computer 7, touch-sensitive screen 8 and control panel 9, works as when the sensor 3 of shooing detects the signal, control system controls 2 high-speed stroboflash of lighting device group according to the signal to control camera 1 and shoot, wait the packing quality of thing and drive removing devices 5 high-speed rejection unqualified waiting to examine the thing with the detection.
Preferably, the packaging quality detection system further comprises an alarm 11, the alarm 11 is connected with the control system, the alarm 11 is used for alarming when abnormal conditions occur, and the abnormal conditions include light source faults, optical fiber faults, excessive rejection, detection interruption and camera abnormity. The belt sets up four faces in the upper and lower left and right sides, the belt includes left side belt, right side belt, bottom belt and upper portion belt, the belt is used for cliping waits to examine the thing and accelerates the separation. The thin steel wire is arranged on the bottom belt and used for supporting the object to be detected so as to reduce the friction resistance. The cameras 1 are high-precision color cameras, and the cameras 1 can each photograph both faces of an object to be inspected. The lighting device group 2 is an LED light source, and the lighting device group 2 adopts a shadowless lamp type design and can illuminate at least 4 directions. The package quality detection system further includes a signal line 4. The packaging quality detection system adopts a modular design, and the control system, the detection system and the rejection system are mutually isolated and interacted through signal lines. The control system further comprises a memory, and the memory stores qualified standard images of the object to be detected. And the control system compares the received image of the object to be detected with the qualified standard image of the object to be detected, and if the similarity and the image position coordinate are within the set tolerance, the packaging quality of the object to be detected is judged to be qualified, otherwise, the packaging quality of the object to be detected is judged to be unqualified.
Firstly, storing qualified standard cigarette images, in the production process, judging that the cigarette packet is in place by a control panel 9 according to signals of a photographing sensor 3, controlling a lighting device group 2 to flash, then sending photographing signals to a camera 1, photographing after the camera 1 is exposed, uploading images to an industrial personal computer 7, processing the images by the industrial personal computer 7 according to an acquired cigarette packet model, and summarizing results after the images on 6 surfaces are completely processed. And sending the processing result to a control board 9, judging by the control board 9 according to the received signal, comparing the image of the cigarette in the small packet detected in real time with the stored image, and if the similarity (FIT) and the position coordinates (X, Y) of the image are within the set tolerance, indicating that the cigarette in the packet is qualified in appearance, otherwise, indicating that the cigarette in the packet is unqualified in appearance. And if the judgment result is unqualified, the tobacco bale is detected to be in place and then is immediately rejected by a self-made rejection device 5 through controlling a high-speed rejection valve.
The main parameters of this example are as follows:
| serial number | Item | Index (I) |
| 1 | Detection rate | Removing the serious defects by 100 percent; the detection rate of general defects is more than or equal to 97 |
| 2 | False detection rate | ≤ 0.1% |
| 3 | Detecting speed | Less than or equal to 600 bags/min |
| 4 | Precision of dirt and foreign matter | 2mm× |
| 5 | Brand pattern offset | |
| 6 | Application scope | Various application scenes suitable for all GD packaging machines (including high-speed machines) |
The embodiments show that the invention has wide application range, simple use, high detection speed and reliable detection result.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and variations that can be made by the present invention in the specification or directly or indirectly applied to other related technical fields are included in the scope of the present invention.
Claims (10)
1. A package quality inspection system, characterized in that the package quality inspection system comprises:
the separation mechanism comprises at least four belts and at least one thin steel wire, and is used for accelerating and forcibly separating the object to be detected conveyed at a high speed;
the detection system is arranged on the rear side of the separation mechanism and comprises at least 4 cameras, a lighting device group and a photographing sensor, the detection system is used for carrying out visual imaging on 6 surfaces of the object to be detected, and the photographing sensor is used for detecting the position of the object to be detected;
the rejecting device is arranged at the rear end of the detection system and comprises a high-speed electromagnetic valve, a rejecting sensor and a mechanical device, and the rejecting device is used for rejecting the to-be-detected object with an unqualified detection result at a high speed;
the control system comprises an industrial personal computer, a touch screen and a control panel, when the photographing sensor detects a signal, the control system controls the lighting device group to strobe at a high speed according to the signal and controls the camera to photograph so as to detect the packaging quality of the object to be detected and drive the rejecting device to reject the unqualified object to be detected at a high speed.
2. The packaging quality detection system according to claim 1, further comprising an alarm connected to the control system, the alarm being configured to alarm when an abnormal condition occurs, the abnormal condition including a light source failure, an optical fiber failure, excessive rejection, a detection interruption, and a camera abnormality.
3. The packaging quality detection system according to claim 1, wherein the belts are disposed on four sides of the upper, lower, left and right sides, the belts include a left side belt, a right side belt, a bottom belt and an upper side belt, and the belts are used for clamping the object to be inspected to accelerate separation.
4. The packaging quality inspection system according to claim 1, wherein the thin steel wire is provided above the bottom belt, and the thin steel wire is used to support the object to be inspected so as to reduce frictional resistance.
5. The packaging quality inspection system according to claim 1, wherein the cameras are high-precision color cameras each capable of photographing both faces of the object to be inspected.
6. The packaging quality detection system of claim 1, wherein the lighting device group is an LED light source, and the lighting device group is designed as a shadowless lamp and can illuminate at least 4 directions.
7. The package quality detection system of claim 1, further comprising a signal line.
8. The packaging quality detection system of claim 1, wherein the packaging quality detection system is modular in design, and the control system, the detection system, and the rejection system are isolated from each other and interact through signal lines.
9. The package quality inspection system of claim 1, wherein the control system further comprises a memory storing a standard image of a qualified object to be inspected.
10. The packaging quality detection system according to claim 1, wherein the control system compares the received image of the object to be detected with the qualified standard image of the object to be detected, and if the similarity and the image position coordinate are within the set tolerance, the packaging quality of the object to be detected is judged to be qualified, otherwise, the packaging quality of the object to be detected is judged to be unqualified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911346361.0A CN110987950A (en) | 2019-12-24 | 2019-12-24 | Packaging quality detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911346361.0A CN110987950A (en) | 2019-12-24 | 2019-12-24 | Packaging quality detection system |
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| CN110987950A true CN110987950A (en) | 2020-04-10 |
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| CN201911346361.0A Pending CN110987950A (en) | 2019-12-24 | 2019-12-24 | Packaging quality detection system |
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Application publication date: 20200410 |