CN103162630B - Each segmentation charge bar length nondestructive measurement device and method in filter stick test desk, filter stick - Google Patents
Each segmentation charge bar length nondestructive measurement device and method in filter stick test desk, filter stick Download PDFInfo
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- CN103162630B CN103162630B CN201310042841.4A CN201310042841A CN103162630B CN 103162630 B CN103162630 B CN 103162630B CN 201310042841 A CN201310042841 A CN 201310042841A CN 103162630 B CN103162630 B CN 103162630B
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Abstract
The present invention relates to each segmentation charge bar length nondestructive measurement device and method in filter stick test desk, filter stick, nondestructive measurement device comprises filter stick test desk, imaging device and controller, filter stick test desk comprises bogey and light can thereof, described bogey comprises the bearing groove for keeping flat filter stick, the below of this bearing groove is provided with guide-lighting groove, the bottom of this guide-lighting groove is provided with high light linear light sorurce along guide-lighting trench length direction, and this high light linear light sorurce is welded in PCB; The present invention mainly adopts ght transmission method, use highlighted light source irradiation filter stick, because different filter rod segments is different to the absorption intensity of light, use the light intensity of method seizure through Transmission Attenuation of imaging, the image intensity value difference that different filter rod segments is corresponding, by the length of each Gray Level Segments of image measurement, namely obtain the length of filter stick each section of charge bar, thus realize the measurement of each segmentation filter lengths of non-destructive testing composite filter.
Description
Technical field
The present invention relates to each segmentation charge bar length nondestructive measurement device and method in a kind of cigarette composite filter test desk, filter stick.
Background technology
Cigarette composite filter is made up of the charge bar of two or more unlike material, and as shown in Figure 1, be mainly composited by cellulose acetate filter rod 6 and the charge bar 7 with selective adsorption performance, position shown in 8 is for cutting position.Along with deepening continuously of tobacco business lowering harm and decreasing coking work, binary, Three-element composite filter core are applied on cigarette more and more, having in the charge bar of absorption property what usually add is absorbent charcoal material, and it can reduce tar content in cigarette and harmful substances in flue gas effectively.
Composite structure as one of technical requirement in composite filter quality inspection, i.e. the accurate length of each section of charge bar in test compound filter stick, thus ensure Tar stability.Because one deck filter stick shaping paper has been wrapped up in composite filter periphery, cannot directly measure, what current tobacco business adopted is destructive test, concrete grammar is the filter stick shaping paper first cutting composite filter with blade open, make each segmentation charge bar out exposed, then test the length of each segmentation charge bar with ruler respectively, can find out that this method operation steps is more loaded down with trivial details, also there is the problem of the test error caused because manual operation is improper simultaneously.
Summary of the invention
The object of this invention is to provide a kind of filter stick test desk, for the Measurement accuracy of segmentation charge bar length each in filter stick provides platform.
Another object of the present invention is to provide each segmentation charge bar length nondestructive measurement device and method in a kind of filter stick, to solve existing destructive test method complex operation step and easily to cause the problem of test error.
For realizing goal of the invention, filter stick test desk of the present invention comprises bogey and light can thereof, described bogey comprises the bearing groove for keeping flat filter stick, the below of this bearing groove is provided with guide-lighting groove, the bottom of this guide-lighting groove is provided with high light linear light sorurce along guide-lighting trench length direction, and this high light linear light sorurce is welded in PCB.
Further, described high light linear light sorurce is made up of the paster LED of dense arrangement.
Further, described bearing groove is V-type groove, and opening angle is 45 °.
Further, described paster LED is highlighted, Lang Baixing, white light paster LED, is spaced apart 3mm between paster LED.
For realizing goal of the invention, in cigarette composite filter of the present invention, each segmentation charge bar length nondestructive measurement device comprises:
Filter stick test desk, comprise bogey and light can thereof, described bogey comprises the bearing groove for keeping flat filter stick, the below of this bearing groove is provided with guide-lighting groove, the bottom of this guide-lighting groove is provided with high light linear light sorurce along guide-lighting trench length direction, and this high light linear light sorurce is welded in PCB;
Imaging device, comprises CCD camera and corresponding camera lens, for gathering the imaging of filter stick to be measured on the bearing groove lying against filter stick test desk under high light linear light sorurce throws light on and being uploaded to controller;
Controller, for collect imaging device image data, to gather data carry out information processing and order issue;
The high light linear light sorurce of described controller difference control linkage imaging device, filter stick test desk.
Further, also comprise measurement result output unit, this device comprises display and external printing device.
Further, described filter stick test desk, imaging device, controller, result output unit are located in a housing, are provided with one for placing the drawing device of filter stick test desk below this housing.
Further, described housing is provided with control knob, and this control knob is connected with described controller.
Further, described high light linear light sorurce is made up of the paster LED of dense arrangement; Described bearing groove is V-type groove, and opening angle is 45 °; Described paster LED is highlighted, Lang Baixing, white light paster LED, is spaced apart 3mm between paster LED.
For realizing goal of the invention, in cigarette composite filter of the present invention, the step of each segmentation charge bar length non-destructive measuring method is as follows:
(1) when changing any imaging parameters such as camera heights, lens aperture, focal length, need to demarcate imaging parameters.By the master bar that measurement for opaque, length are known, be embodied as picture parameter calibration, to obtain real space size corresponding to single pixel in image.
(2) start the power supply of measuring equipment, light high light linear light sorurce, filter stick to be measured is lain in the bearing groove of filter stick test desk;
(3) high light linear light sorurce irradiates filter stick to be measured, and imaging device catches the picture that on filter stick, each charge bar section is different to formed image intensity value, and this imaging is uploaded to controller;
(4) controller processes the image uploaded, and exports the length measurements of each charge bar.
Filter stick test desk of the present invention comprises bogey and light can thereof, and light can realize light sealing, makes measuring process have stable imaging environment; Bogey comprises the bearing groove arranged, guide-lighting groove, high light linear light sorurce and PCB from top to bottom, can fix filter stick to be measured, and strong linear light sorurce can implement the illumination of high light back court to the filter stick to be measured of carrying.Bearing groove is that V-type groove can fix filter stick to be measured, adopts 45 ° of oblique angles to increase the contact area of groove inclined-plane and filter stick, can effectively stop light to leak from both sides; The dense arrangement of paster LED can form comparatively uniform filter stick back court lighting environment to be measured.
Each segmentation charge bar length nondestructive measurement device and method in filter stick of the present invention, main employing ght transmission method, use highlighted light source irradiation filter stick, because different filter rod segments is different to the absorption intensity of light, use the light intensity of method seizure through Transmission Attenuation of imaging, the image intensity value difference that different filter rod segments is corresponding, by the length of each Gray Level Segments of image measurement, namely obtain the length of filter stick each section of charge bar, thus realize the measurement of each segmentation filter lengths of non-destructive testing composite filter.Present invention achieves harmless, the Quick Measurement of each segmentation charge bar length in composite filter, measuring accuracy can reach 0.5mm, can meet the demand of filter stick manufacturing enterprise and quality inspection organization routine testing.The present invention not only can measure the length of each charge bar section, also can be used for the measurement of whole filter lengths.
Accompanying drawing explanation
Fig. 1 is composite filter structural representation;
Fig. 2 is the measuring equipment module frame chart of the embodiment of the present invention;
Fig. 3 is the filter stick test desk structural representation of the embodiment of the present invention;
Fig. 4 is the measuring equipment external form schematic diagram of the embodiment of the present invention;
Fig. 5 is image processing flow figure.
Embodiment
One, filter stick test desk
As shown in Figure 3, filter stick test desk comprises bogey and light can 45 thereof, bogey comprises the bearing groove 41 for keeping flat filter stick, bearing groove is V-type groove, slot opening 10mm, opening angle is 45 °, and the below of this bearing groove 41 is provided with the guide-lighting groove 42 that the degree of depth is 5mm, the bottom of this guide-lighting groove 42 is provided with high light linear light sorurce 43 along guide-lighting trench length direction, and this high light linear light sorurce 43 is welded in PCB 44.High light linear light sorurce is made up of the paster LED of dense arrangement, and paster LED is highlighted, Lang Baixing, white light paster LED, is spaced apart 3mm between paster LED.The design of V-type groove can fix filter stick to be measured, adopts 45 ° of oblique angles to increase the contact area of groove inclined-plane and filter stick, can effectively stop light excessive from both sides, and the dense arrangement of paster LED can form comparatively uniform testing sample back court lighting environment.
Two, each segmentation charge bar length nondestructive measurement device in cigarette composite filter
In cigarette composite filter, each segmentation charge bar length nondestructive measurement device comprises filter stick test desk, imaging device and controller, and the structure of filter stick test desk as shown in Figure 3, see the above-mentioned description to filter stick test desk, can not repeat them here.Imaging device comprises CCD camera and corresponding camera lens, and imaging device for gathering the image of filter stick on test desk bearing groove, and is uploaded to controller.Camera is located at directly over filter stick platform, and the strong illumination of filter stick bottom bearing groove, through the optical transform of camera lens, images on the sensitive chip of camera.Because the degree of absorption of different filter rod segments to light is inconsistent, the high light sent bottom bearing groove, through the absorption of each filter rod segments, presents different light and shade intensity in the picture.Controller for collect imaging device image data, to gather data carry out information processing and order issue; As shown in Figure 2, the high light linear light sorurce of controller difference control linkage imaging device, filter stick test desk.Measuring equipment also comprises measurement result output unit, and this device comprises display and external printing device.Light source refers to the high light linear light sorurce by the highlighted paster LED of lambert's type close-packed arrays bottom filter stick bogey, and this light source uses 350mA constant current to drive, and its duty is controlled by controller.Power supply is for powering to all parts of device.Control knob is the level signal of key-press input, the function of demarcation of being responsible for the control command receiving user, being respectively used to realize switching on and shutting down, start to measure, start.
As shown in the device external form figure of Fig. 4, filter stick test desk, imaging device, controller, result output unit are located in a housing, be provided with one below this housing for placing the drawing device of filter stick test desk, housing is provided with control knob, and this control knob is connected with described controller.
Three, each segmentation charge bar length non-destructive measuring method in cigarette composite filter
The principle of work of measuring method is as follows: high light linear light sorurce forms back court illumination, composite filter is under back court lighting condition, because the filter rod segments of unlike material composition has different absorption coefficients to back court illumination, therefore the filter rod segments that this filter stick is different presents different brightness, this filter rod segments image is gathered by imaging device, by analyzing the luminance difference that filter rod segments presents, marking the delivery position of each filter rod segments, thus realizing the linear measure longimetry of each filter rod segments.
Use the method step that in above-mentioned cigarette composite filter, each segmentation charge bar length nondestructive measurement device carries out nondestructive measurement as follows:
(1) when changing any imaging parameters such as camera heights, lens aperture, focal length, need to demarcate imaging parameters.By the master bar that measurement for opaque, length are known, be embodied as picture parameter calibration, to obtain real space size corresponding to single pixel in image.
(2) start the power supply of measuring equipment, light high light linear light sorurce, filter stick to be measured is lain in the bearing groove of filter stick test desk;
(3) high light linear light sorurce irradiates filter stick to be measured, and imaging device obtains the picture that on filter stick, each charge bar section is different to formed image intensity value, and by this image uploading to controller;
(4) after controller obtains image, following operation is carried out to image: carry out necessary pre-service, remove the Noise and Interference existed in image; Extract area-of-interest, remove the garbage in image, only retain and comprise the key images treating measurement information; Obtain the grayscale distribution information of filter stick image, extract the segmentation threshold of binaryzation; Utilize segmentation threshold, binaryzation operation is carried out to filter stick image, represent the different charge bars of filter stick by two values respectively; Add up the number of pixels of different its length direction of charge bar, then be multiplied by the scale-up factor of the corresponding real space of single pixel, thus obtain the length value of different charge bar section, realize the linear measure longimetry of each segmentation filter rod segments.Above-mentioned image processing flow as shown in Figure 5.
Claims (5)
1. each segmentation charge bar length non-destructive measuring method in composite filter, the method adopts each segmentation charge bar length nondestructive measurement device in a kind of composite filter, and this equipment comprises:
Filter stick test desk, comprise bogey and light can thereof, described bogey comprises the bearing groove for keeping flat filter stick, the below of this bearing groove is provided with guide-lighting groove, the bottom of this guide-lighting groove is provided with high light linear light sorurce along guide-lighting trench length direction, and this high light linear light sorurce is welded in PCB;
Imaging device, comprises camera and camera lens, for gathering the image of filter stick on filter stick test desk bearing groove, and is uploaded to controller; Camera is located at directly over filter stick test desk, the strong illumination of filter stick bottom bearing groove, through the optical transform of camera lens, images on the sensitive chip of camera; Because the degree of absorption of different filter rod segments to light is inconsistent, the high light sent bottom bearing groove, through the absorption of each filter rod segments, presents different light and shade intensity in the picture;
Controller, for collect imaging device image data, to gather data carry out information processing and order issue;
The high light linear light sorurce of described controller difference control linkage imaging device, filter stick test desk, it is characterized in that, the implementation step of the method is as follows:
(1) when changing camera heights, lens aperture, focused images parameter, need to demarcate imaging parameters; By the master bar that measurement for opaque, length are known, be embodied as picture parameter calibration, to obtain real space size corresponding to single pixel in image;
(2) start the power supply of measuring equipment, light high light linear light sorurce, filter stick to be measured is lain in the bearing groove of filter stick test desk;
(3) high light linear light sorurce irradiates filter stick to be measured, and imaging device catches image formed by each charge bar section on filter stick, and the gray-scale value of each image is different, and this imaging is uploaded to controller;
(4) controller processes the image uploaded, treatment step mainly comprises: filtering and noise reduction, region of interesting extraction, binaryzation, edge extracting, marginal position calculate, Pixel Dimensions is to the dimension conversion of real space, the final each marginal information exporting conversion and obtain, i.e. each charge bar segment length measured value.
2. method according to claim 1, is characterized in that, also comprises measurement result output unit, and this device comprises display and external printing device.
3. method according to claim 1, is characterized in that, described filter stick test desk, imaging device, controller, result output unit are located in a housing, is provided with one for placing the drawing device of filter stick test desk below this housing.
4. method according to claim 3, is characterized in that, described housing is provided with control knob, and this control knob is connected with described controller.
5. the method according to any one of claim 1-4, is characterized in that, described high light linear light sorurce is made up of the paster LED of dense arrangement; Described bearing groove is V-type groove, and opening angle is 45 °; Described paster LED is highlighted, Lang Baixing, white light paster LED, is spaced apart 3mm between paster LED.
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| CN201310042841.4A CN103162630B (en) | 2013-02-04 | 2013-02-04 | Each segmentation charge bar length nondestructive measurement device and method in filter stick test desk, filter stick |
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| CN201310042841.4A CN103162630B (en) | 2013-02-04 | 2013-02-04 | Each segmentation charge bar length nondestructive measurement device and method in filter stick test desk, filter stick |
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| CN103162630B true CN103162630B (en) | 2016-02-24 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110125046A (en) * | 2019-05-31 | 2019-08-16 | 南通烟滤嘴有限责任公司 | The vision detection system of composite filter segment length |
| CN112058691B (en) * | 2020-10-10 | 2022-03-04 | 湖北中烟工业有限责任公司 | Quality control method of sectional type filter stick based on CCD imaging technology |
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| CN2480802Y (en) * | 2001-05-28 | 2002-03-06 | 戴立铭 | Outer size measurer for cigarette and filter tip |
| EP1397961A1 (en) * | 2002-09-11 | 2004-03-17 | Hauni Maschinenbau AG | Method and apparatus for measuring the length and/or the diameter of filter rods |
| CN101539529A (en) * | 2009-04-28 | 2009-09-23 | 江苏大学 | Light source system for online detection of minitype fruits based on LED |
| CN201805898U (en) * | 2010-01-14 | 2011-04-27 | 侯明 | Improved measuring device |
| CN201947930U (en) * | 2011-01-17 | 2011-08-31 | 大树智能科技(南京)有限公司 | Automatic online detection and control device for filter stick peripheries |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101158651A (en) * | 2007-11-16 | 2008-04-09 | 南京农业大学 | Device and method for detecting apples inside and outside quality based on laser image analyse |
| DE102009016499A1 (en) * | 2009-04-08 | 2010-10-21 | Hauni Maschinenbau Ag | Method of optically controlling a wrapping paper strip of the tobacco processing industry |
| CN201653914U (en) * | 2010-04-20 | 2010-11-24 | 红云红河烟草(集团)有限责任公司 | Internal structure detecting device of special filter stick of cigarette |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2480802Y (en) * | 2001-05-28 | 2002-03-06 | 戴立铭 | Outer size measurer for cigarette and filter tip |
| EP1397961A1 (en) * | 2002-09-11 | 2004-03-17 | Hauni Maschinenbau AG | Method and apparatus for measuring the length and/or the diameter of filter rods |
| CN101539529A (en) * | 2009-04-28 | 2009-09-23 | 江苏大学 | Light source system for online detection of minitype fruits based on LED |
| CN201805898U (en) * | 2010-01-14 | 2011-04-27 | 侯明 | Improved measuring device |
| CN201947930U (en) * | 2011-01-17 | 2011-08-31 | 大树智能科技(南京)有限公司 | Automatic online detection and control device for filter stick peripheries |
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