CN103801514B - A kind of scrap prodn. line tobacco leaf automation selecting device and method - Google Patents
A kind of scrap prodn. line tobacco leaf automation selecting device and method Download PDFInfo
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- CN103801514B CN103801514B CN201410036808.5A CN201410036808A CN103801514B CN 103801514 B CN103801514 B CN 103801514B CN 201410036808 A CN201410036808 A CN 201410036808A CN 103801514 B CN103801514 B CN 103801514B
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Abstract
The invention discloses a kind of scrap prodn. line tobacco leaf automation selecting device and method, comprising tobacco leaf except group's system, offal detects and the detection of eliminating system, blue or green cigarette and the tobacco leaf that goes mouldy and eliminating system, Sorting System and tobacco conveyer; The entrance that raw tobacco removes group's system from tobacco leaf enters, and removes conglomeration tobacco leaf; The non-group of connecing tobacco leaf detects from offal and eliminating system exports, and is detected and the band that device for eliminating detects containing offal is mixed tobacco leaf by offal; To be detected by blue or green cigarette and the cigarette that goes mouldy and the isolated band containing blue or green cigarette and the cigarette that goes mouldy of eliminating system is mixed tobacco leaf, adopt rejecting mechanism blue or green cigarette and the cigarette that goes mouldy to be rejected; Complete blue or green cigarette and go mouldy cigarette reject after tobacco leaf enter Sorting System, Sorting System accelerates tobacco leaf, and by foreign material reject, complete foreign material reject after tobacco leaf be delivered to tobacco leaf gathering-device by tobacco conveyer, complete the selected of tobacco leaf.This scrap prodn. line tobacco leaf automation selecting device and method easy to implement, tobacco leaf beneficiation efficiencies is high, and automaticity is high.
Description
Technical field
The invention belongs to tobacco manufacture field, particularly a kind of scrap prodn. line tobacco leaf automation selecting device and method.
Background technology
Keep the degree of purity of raw tobacco material, run through tobacco purchasing, beating and double roasting, silk producing procedures, be one of content of paying close attention to of tobacco processing procedure always.The non-hierarchical tobacco leaf such as blue or green cigarette, mould cigarette produced such as not good is controlled owing to plucking the bad or storage process moisture of Absent measures ineffective, tobacco leaf modulation, and the non-cigarettes, wines and miscellaneous goods thing such as flax silk, be mixed in grade tobacco leaf, will the smoking quality of cigarette product be had a strong impact on.Meanwhile, due to beating and double roasting link wind dispensing limited efficacy, cause part to enter raw material of cigarette containing stalk smoked sheet, also can affect physical quality and aesthetic quality that final products roll.Therefore, blue or green cigarette, mould cigarette, foreign material, be promote the main object that tobacco leaf degree of purity needs to control containing stalk smoked sheet, and tobacco cutting process blade sections is the key link by the follow-up raw material of cigarette degree of purity of the selected guarantee of smoked sheet.
At present, tobacco processing line impurity removed system mainly comprises selection by winnowing removal of impurities, photoelectricity removal of impurities (containing laser removal of impurities) etc.The light weight sundries that floating velocity and smoked sheet mainly differ greatly by wind-force by selection by winnowing mode is removed, and the foreign material removal effect close with tobacco material to density is undesirable.Photoelectricity removal of impurities rejects in smoked sheet the larger impurity of the aberration that exists mainly through colour recognition.For the identification of blue or green cigarette and mould cigarette, still there is no special equipment.The photoelectricity impurity removing unit of current scrap prodn. line also can reject the blue or green cigarette of sub-fraction and mould cigarette, and rejecting ratio is low, can not meet the demands.For containing stalk tobacco leaf, except manual type and selection by winnowing mode, still do not have automated mechanical equipment can identify containing stalk tobacco leaf and precisely reject at present.
Patent CN101502338A discloses a kind of tobacco processing line sheet cigarette selecting system and technique.The invention provides and a kind of dynamically feeding, rewinding and static state can select leaf, to reject the sheet cigarette selecting system of various impurity in smoked sheet on scrap prodn. line.But, select leaf mode still to adopt the artificial tobacco leaf that goes mouldy, offal, vein and other impurity of rejecting in smoked sheet in this invention.Manually screen piecewise, waste time and energy, inefficiency, and the control that homogenizes of smoked sheet degree of purity can not get steady in a long-term and ensures reliably, is difficult to the needs meeting technology for making tobacco threds fine design.Therefore, from pertinent literature report both domestic and external, still do not have a kind of equipment of automation to have and can unify solve blue or green cigarette, mould cigarette, foreign material and contain the detection and removing function of obstructing tobacco leaf.
Summary of the invention
The object of the invention is the deficiency solving prior art existence, a kind of scrap prodn. line tobacco leaf automation selecting device and method, this device can be unified to solve blue or green cigarette in smoked sheet raw material, mould cigarette, foreign material and contains the automatic detection of stalk tobacco leaf and precisely reject, system automation degree is high, effectively can promote the degree of purity of scrap prodn. line smoked sheet, promote cigarette quality.
A kind of scrap prodn. line tobacco leaf automation selecting device, comprising the tobacco leaf that connects successively except group's system, offal detects and the detection of eliminating system, blue or green cigarette and the tobacco leaf that goes mouldy and eliminating system, Sorting System and tobacco conveyer; The entrance that raw tobacco removes group's system from tobacco leaf enters, remove the tobacco leaf after conglomeration to detect and eliminating system output from offal, to be detected by offal and the band that device for eliminating detects containing offal is mixed tobacco leaf, utilize offal to detect and the rejecting mechanism of eliminating system offal is rejected after tobacco leaf enter blue or green cigarette and the detection of the tobacco leaf that goes mouldy and eliminating system; To be detected by blue or green cigarette and the cigarette that goes mouldy and the isolated band containing blue or green cigarette and the cigarette that goes mouldy of eliminating system is mixed tobacco leaf, adopt blue or green cigarette and blue or green cigarette and the cigarette that goes mouldy are rejected by the go mouldy detection of tobacco leaf and the rejecting mechanism of eliminating system; Complete blue or green cigarette and go mouldy cigarette reject after tobacco leaf enter Sorting System, Sorting System accelerates tobacco leaf, in accelerator, utilize the rejecting mechanism of Sorting System to be rejected by foreign material, the tobacco leaf completed after foreign material rejecting is delivered to tobacco leaf gathering-device by tobacco conveyer, completes the selected of tobacco leaf.
Except group, system comprises star roller 1 to described tobacco leaf, the groove 2 that shakes, roller 4 of making thinner, the group's of connecing tobacco leaf belt 3, differential make thinner belt 5;
The incoming end of described star roller exports with silo and is connected, and star roller is be arranged side by side multiple, and adjacent roller distance between axles is 20-50mm, the top of the groove 2 that shakes described in star roller 1 is positioned at; The rear end of star roller is provided with the described group's of connecing tobacco leaf belt; Described groove 2 rear end that shakes is connected to roller 4 of making thinner, and described differential belt 5 of making thinner is arranged at roller rear of making thinner.
Described offal detects and eliminating system comprises X-ray source, CCD image-generating unit, the first graphics processing unit and the first culling unit; Described X-ray source is positioned at differential and makes thinner the top of belt 5, CCD image-generating unit is positioned at differential and makes thinner the below of belt 5, the differential the collected tobacco leaf image of making thinner on belt 5 is sent to the first graphics processing unit by CCD image-generating unit, first culling unit be arranged at differential make thinner belt 5 tail end and be controlled by the first graphics processing unit, first graphics processing unit exports rejects signal control rejecting air valve switch, when rejecting air valve and opening, offal is rejected by gases at high pressure ejection;
Described X-ray source is XYG-160 type x ray generator;
Described first graphics processing unit comprises line sweep x-ray detector, image pick-up card and industrial computer, line sweep x-ray detector receives the X-ray through belt and tobacco leaf, the picture signal that image pick-up card gathering line scanning x-ray detector exports, input industrial computer carries out image procossing.
The detection of described blue or green cigarette and the tobacco leaf that goes mouldy and eliminating system, to be detected with described offal by climbing belt 9 and eliminating system is connected, comprise the second graphics processing unit, connect cigarette channel, background belt 10, first optical glass, the first LED illumination light source, first camera and the second culling unit;
Described first optical glass is arranged on above background belt, and the first LED illumination light source and first camera are positioned at above background belt; The light that first LED illumination light source exports is radiated on background belt; Tobacco leaf image on the background belt collected is sent to image processing system by first camera; Second culling unit and connect the tail end that cigarette channel is all arranged on background belt, the second culling unit is controlled by image processing system; During the second culling unit action, blown into by the tobacco leaf at the tail end place of background belt and connect in cigarette channel, when the second culling unit is not operating, the tobacco leaf at the tail end place of background belt falls in normal tobacco leaf passage;
First LED illumination light source adopts two LED condensation light sources, and two LED condensation light source interval 10cm range distribution are above background belt;
Described first camera is 3CCD colorful digital camera, and a high position for described 3CCD colorful digital camera distance background belt is 460mm-500mm;
Described second graphics processing unit comprises the DALSAX-64CLiPro image pick-up card and industrial computer that clock frequency is 85MHZ, and clock frequency is that the DALSAX-64CLiPro image pick-up card of 85MHZ gathers the image of first camera shooting and inputs industrial computer and carry out image procossing.
Described Sorting System comprises two belt accelerating system, the 3rd graphics processing unit, the second LED illumination light source, the second optical glass, second camera and the 3rd culling unit;
Described second LED illumination light source comprises four LED light sources, second LED illumination light source is positioned at the below of two belt 14, wherein, article two, LED light source interval 20mm is installed on above tobacco leaf operation passage, with 75 degree of angles, tobacco leaf upper surface is thrown light on, two other LED light source interval 20mm is installed on tobacco leaf and runs below passage, throws light on to tobacco leaf lower surface with 75 degree of angles; Second optical glass is positioned at the top of two belt 14, tobacco leaf image on the two belts 14 collected is sent to the 3rd graphics processing unit by second camera, 3rd culling unit is arranged at the tail end of two belt 14 and is controlled by the 3rd graphics processing unit, 3rd graphics processing unit exports rejects signal control rejecting air valve switch, when rejecting air valve and opening, non-cigarette is rejected by gases at high pressure ejection;
3rd graphics processing unit adopts FPGA integrated circuit.
Described blue or green cigarette and the first camera of going mouldy in the detection of tobacco leaf and eliminating system are N number of, N be more than or equal to 1 integer; Each side configuration LED illumination light source of each camera.
In described blue or green cigarette and the go mouldy detection of tobacco leaf and eliminating system, the first LED illumination light source adopts LED prism condensation light source, and camera adopts three CCD line scan cameras, and background belt selects blue or magenta.
A kind of scrap prodn. line tobacco leaf automation method for concentrating, is characterized in that, the scrap prodn. line tobacco leaf automation selecting device described in employing;
Method for concentrating is:
Make tobacco leaf enter tobacco leaf except group's system from feeding machine, tobacco leaf advances along with the rolling of star roller, and agglomerating tobacco leaf enters the group's of connecing tobacco leaf belt and through the group's of connecing passage discharge, completes the removal of the group's of connecing tobacco leaf; Non-agglomerating tobacco leaf drops and is shaking on groove, and tobacco leaf moves backward with the shake of the groove that shakes and enters differential and to make thinner belt;
Differential make thinner belt tobacco leaf is delivered to offal detect and eliminating system, X-ray source is positioned at differential and makes thinner the below of belt 5, CCD image-generating unit is positioned at differential and makes thinner the top of belt 5, the differential the collected tobacco leaf image of making thinner on belt 5 is sent to the first graphics processing unit by CCD image-generating unit, first culling unit be arranged at differential make thinner belt 5 tail end and be controlled by the first graphics processing unit, first graphics processing unit exports rejects signal control rejecting air valve switch, when rejecting air valve and opening, offal is rejected by gases at high pressure ejection;
The light that first LED illumination light source exports is radiated on background belt; Tobacco leaf image on the background belt collected is sent to image processing system by first camera; Second culling unit and connect the tail end that cigarette channel is all arranged on background belt, the second culling unit is controlled by image processing system; During the second culling unit action, blown into by the tobacco leaf at the tail end place of background belt and connect in cigarette channel, when the second culling unit is not operating, the tobacco leaf at the tail end place of background belt falls in normal tobacco leaf passage;
The tobacco leaf entered in normal tobacco leaf passage enters Sorting System with double belt, tobacco leaf leaves along with the double belt run up, the light that second LED illumination light source exports is radiated on double belt, tobacco leaf image on the two belts 14 collected is sent to the 3rd graphics processing unit by second camera, 3rd culling unit is arranged at the tail end of two belt 14 and is controlled by the 3rd graphics processing unit, 3rd graphics processing unit exports rejects signal control rejecting air valve switch, when rejecting air valve and opening, non-cigarette is rejected by gases at high pressure ejection, normal tobacco leaf inputs to tobacco leaf gathering-device with tobacco conveyer.
Described second graphics processing unit is according to the blue or green cigarette of the H component identification of the expression picture tone of tobacco leaf image and the cigarette that goes mouldy; If the H component of current tobacco leaf image is less than or equal to 60, then judge there is not blue or green cigarette in the tobacco leaf that current tobacco leaf image is corresponding and the cigarette that goes mouldy; The H component of current tobacco leaf image is greater than 60 else if, then judge to there is blue or green cigarette in the tobacco leaf that current tobacco leaf image is corresponding and the cigarette that goes mouldy.
Described second graphics processing unit is according to the blue or green cigarette of the H component identification of the expression picture tone of tobacco leaf image and the cigarette that goes mouldy; If the H component of current tobacco leaf image is between 60-240, then judge to there is blue or green cigarette in the tobacco leaf that current tobacco leaf image is corresponding and the cigarette that goes mouldy, if the H component of current tobacco leaf image is not between 60-240, then judge that tobacco leaf that current tobacco leaf image is corresponding is as qualified tobacco leaf.
Beneficial effect
Scrap prodn. line tobacco leaf automation selecting device of the present invention, comprising tobacco leaf except group's system, offal detects and the detection of eliminating system, blue or green cigarette and the tobacco leaf that goes mouldy and eliminating system, Sorting System and tobacco conveyer; Blue or green cigarette in smoked sheet raw material, mould cigarette, foreign material be can not unify to solve for existing equipment and the automatic detection of stalk tobacco leaf and accurate rejecting problem contained, provide one and can complete tobacco leaf refining process, and realize blue or green cigarette, mould cigarette, foreign material and the automatic detection containing stalk tobacco leaf, control the rejecting that rejecting mechanism carries out improper tobacco leaf, this selecting device automaticity is high, effectively can promote the degree of purity of scrap prodn. line smoked sheet, promote cigarette quality.
The present invention compared with prior art has the following advantages and effect:
1) conglomeration tobacco leaf in scrap prodn. line smoked sheet raw material, blue or green cigarette, mould cigarette, foreign material and containing the detection of stalk smoked sheet and rejecting can be unified to solve, improve the beneficiation efficiencies of tobacco leaf;
2) automation achieving smoked sheet is selected, reduces and manually selects leaf expense, improves and selects leaf efficiency, and be conducive to the control that homogenizes of smoked sheet degree of purity, replace manual operation by mechanically actuated, not only avoid the loss that human error brings, and reduce accident rate;
3) high to blue or green cigarette, mould cigarette, foreign material and the effective discrimination containing stalk smoked sheet, reject precisely, can significantly promote raw material of cigarette degree of purity, improve cigarette quality.
Accompanying drawing explanation
Fig. 1 is the structural representation inventing described device;
Fig. 2 be offal detect and eliminating system in light source arrangement schematic diagram;
Fig. 3 is the light source arrangement schematic diagram in Sorting System;
Fig. 4 is the result figure that application device of the present invention carries out offal rejecting;
When Fig. 5 is for putting into mould cigarette one by one, applies device of the present invention and carry out the detection of mould cigarette and reject result figure;
Fig. 6 puts into mould cigarette in the tobacco leaf stream of 500kg/h, applies device of the present invention and carries out the detection of mould cigarette and reject result figure;
Fig. 7 puts into mould cigarette in the tobacco leaf stream of 1000kg/h, applies device of the present invention and carries out the detection of mould cigarette and reject result figure;
Fig. 8 is the result figure that application device of the present invention carries out foreign material rejecting;
Label declaration: 1-star roller; 2-shake groove; 3-connect cigarette group belt; 4-roller of making thinner; 5-differential is made thinner belt; 6-offal checkout gear; 7-offal rejects valve; 8-reject offal belt; 9-climbing belt; 10-background belt; The detection of 11-blue or green cigarette and the tobacco leaf that goes mouldy and eliminating system; 12-blue or green, mould cigarette rejects valve; 13-reject blue or green, mould belt; 14-bis-belt; 15-foreign material checkout gear; 16-foreign material reject valve gear; 17-reject non-cigarettes, wines and miscellaneous goods thing belt; 18-tobacco conveyer.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further illustrated.
As shown in Figure 1, a kind of scrap prodn. line tobacco leaf automation selecting device, comprising the tobacco leaf that connects successively except group's system, offal detects and the detection of eliminating system, blue or green cigarette and the tobacco leaf that goes mouldy and eliminating system, Sorting System and tobacco conveyer; The entrance that raw tobacco removes group's system from tobacco leaf enters, remove the tobacco leaf after conglomeration to detect and eliminating system output from offal, to be detected by offal and the band that device for eliminating detects containing offal is mixed tobacco leaf, utilize offal to detect and the rejecting mechanism of eliminating system offal is rejected after tobacco leaf enter blue or green cigarette and the detection of the tobacco leaf that goes mouldy and eliminating system; To be detected by blue or green cigarette and the cigarette that goes mouldy and the isolated band containing blue or green cigarette and the cigarette that goes mouldy of eliminating system is mixed tobacco leaf, adopt blue or green cigarette and blue or green cigarette and the cigarette that goes mouldy are rejected by the go mouldy detection of tobacco leaf and the rejecting mechanism of eliminating system; Complete blue or green cigarette and go mouldy cigarette reject after tobacco leaf enter Sorting System, Sorting System accelerates tobacco leaf, in accelerator, utilize the rejecting mechanism of Sorting System to be rejected by foreign material, the tobacco leaf completed after foreign material rejecting is delivered to tobacco leaf gathering-device by tobacco conveyer, completes the selected of tobacco leaf.
Except group, system comprises star roller 1 to described tobacco leaf, the groove 2 that shakes, roller 4 of making thinner, the group's of connecing tobacco leaf belt 3, differential make thinner belt 5;
The incoming end of described star roller exports with silo and is connected, and star roller is be arranged side by side multiple, and adjacent roller distance between axles is 20-50mm, the top of the groove 2 that shakes described in star roller 1 is positioned at; The rear end of star roller is provided with the described group's of connecing tobacco leaf belt; Described groove 2 rear end that shakes is connected to roller 4 of making thinner, and described differential belt 5 of making thinner is arranged at roller rear of making thinner.
Described offal detects and eliminating system comprises X-ray source, CCD image-generating unit, the first graphics processing unit and the first culling unit; Described X-ray source is positioned at differential and makes thinner the top of belt 5, CCD image-generating unit is positioned at differential and makes thinner the below of belt 5, the differential the collected tobacco leaf image of making thinner on belt 5 is sent to the first graphics processing unit by CCD image-generating unit, first culling unit be arranged at differential make thinner belt 5 tail end and be controlled by the first graphics processing unit, first graphics processing unit exports rejects signal control rejecting air valve switch, when rejecting air valve and opening, offal is rejected by gases at high pressure ejection;
Described X-ray source is XYG-160 type x ray generator.
Described first graphics processing unit comprises line sweep x-ray detector, image pick-up card and industrial computer, line sweep x-ray detector receives the X-ray through belt and tobacco leaf, the picture signal that image pick-up card gathering line scanning x-ray detector exports, input industrial computer carries out image procossing.
The detection of described blue or green cigarette and the tobacco leaf that goes mouldy and eliminating system, to be detected with described offal by climbing belt 9 and eliminating system is connected, comprise the second graphics processing unit, connect cigarette channel, background belt 10, first optical glass, the first LED illumination light source, first camera and the second culling unit;
Described first optical glass is arranged on above background belt, and the first LED illumination light source and first camera are positioned at above background belt; The light that first LED illumination light source exports is radiated on background belt; Tobacco leaf image on the background belt collected is sent to image processing system by first camera; Second culling unit and connect the tail end that cigarette channel is all arranged on background belt, the second culling unit is controlled by image processing system; During the second culling unit action, blown into by the tobacco leaf at the tail end place of background belt and connect in cigarette channel, when the second culling unit is not operating, the tobacco leaf at the tail end place of background belt falls in normal tobacco leaf passage;
First LED illumination light source adopts two LED condensation light sources, and two LED condensation light source interval 10cm range distribution are above background belt;
Described first camera is 3CCD colorful digital camera, and a high position for described 3CCD colorful digital camera distance background belt is 460mm-500mm;
Described second graphics processing unit comprises the DALSAX-64CLiPro image pick-up card and industrial computer that clock frequency is 85MHZ, and clock frequency is that the DALSAX-64CLiPro image pick-up card of 85MHZ gathers the image of first camera shooting and inputs industrial computer and carry out image procossing.
Described Sorting System comprises two belt accelerating system, the 3rd graphics processing unit, the second LED illumination light source, the second optical glass, second camera and the 3rd culling unit;
Described second LED illumination light source comprises four LED light sources, second LED illumination light source is positioned at the below of two belt 14, wherein, article two, LED light source interval 20mm is installed on above tobacco leaf operation passage, with 75 degree of angles, tobacco leaf upper surface is thrown light on, two other LED light source interval 20mm is installed on tobacco leaf and runs below passage, throws light on to tobacco leaf lower surface with 75 degree of angles; Second optical glass is positioned at the top of two belt 14, tobacco leaf image on the two belts 14 collected is sent to the 3rd graphics processing unit by second camera, 3rd culling unit is arranged at the tail end of two belt 14 and is controlled by the 3rd graphics processing unit, 3rd graphics processing unit exports rejects signal control rejecting air valve switch, when rejecting air valve and opening, non-cigarette is rejected by gases at high pressure ejection;
3rd graphics processing unit adopts FPGA integrated circuit.
Described blue or green cigarette and the first camera of going mouldy in the detection of tobacco leaf and eliminating system are N number of, N be more than or equal to 1 integer; Each side configuration LED illumination light source of each camera.
In described blue or green cigarette and the go mouldy detection of tobacco leaf and eliminating system, the first LED illumination light source adopts LED prism condensation light source, and camera adopts three CCD line scan cameras, and background belt selects blue or magenta.
A kind of scrap prodn. line tobacco leaf automation method for concentrating, the scrap prodn. line tobacco leaf automation selecting device described in employing;
Described method for concentrating is:
Make tobacco leaf enter tobacco leaf except group's system from feeding machine, tobacco leaf advances along with the rolling of star roller, and agglomerating tobacco leaf enters the group's of connecing tobacco leaf belt and through the group's of connecing passage discharge, completes the removal of the group's of connecing tobacco leaf; Non-agglomerating tobacco leaf drops and is shaking on groove, and tobacco leaf moves backward with the shake of the groove that shakes and enters differential and to make thinner belt;
Differential make thinner belt tobacco leaf is delivered to offal detect and eliminating system, X-ray source is positioned at differential and makes thinner the below of belt 5, CCD image-generating unit is positioned at differential and makes thinner the top of belt 5, the differential the collected tobacco leaf image of making thinner on belt 5 is sent to the first graphics processing unit by CCD image-generating unit, first culling unit be arranged at differential make thinner belt 5 tail end and be controlled by the first graphics processing unit, first graphics processing unit exports rejects signal control rejecting air valve switch, when rejecting air valve and opening, offal is rejected by gases at high pressure ejection;
The light that first LED illumination light source exports is radiated on background belt; Tobacco leaf image on the background belt collected is sent to image processing system by first camera; Second culling unit and connect the tail end that cigarette channel is all arranged on background belt, the second culling unit is controlled by image processing system; During the second culling unit action, blown into by the tobacco leaf at the tail end place of background belt and connect in cigarette channel, when the second culling unit is not operating, the tobacco leaf at the tail end place of background belt falls in normal tobacco leaf passage;
The tobacco leaf entered in normal tobacco leaf passage enters Sorting System with double belt, tobacco leaf leaves along with the double belt run up, the light that second LED illumination light source exports is radiated on double belt, tobacco leaf image on the two belts 14 collected is sent to the 3rd graphics processing unit by second camera, 3rd culling unit is arranged at the tail end of two belt 14 and is controlled by the 3rd graphics processing unit, 3rd graphics processing unit exports rejects signal control rejecting air valve switch, when rejecting air valve and opening, non-cigarette is rejected by gases at high pressure ejection, normal tobacco leaf inputs to tobacco leaf gathering-device with tobacco conveyer.
Described second graphics processing unit is according to the blue or green cigarette of the H component identification of the expression picture tone of tobacco leaf image and the cigarette that goes mouldy; If the H component of current tobacco leaf image is less than or equal to 60, then judge there is not blue or green cigarette in the tobacco leaf that current tobacco leaf image is corresponding and the cigarette that goes mouldy; The H component of current tobacco leaf image is greater than 60 else if, then judge to there is blue or green cigarette in the tobacco leaf that current tobacco leaf image is corresponding and the cigarette that goes mouldy.
Described second graphics processing unit is according to the blue or green cigarette of the H component identification of the expression picture tone of tobacco leaf image and the cigarette that goes mouldy; If the H component of current tobacco leaf image is between 60-240, then judge to there is blue or green cigarette in the tobacco leaf that current tobacco leaf image is corresponding and the cigarette that goes mouldy, if the H component of current tobacco leaf image is not between 60-240, then judge that tobacco leaf that current tobacco leaf image is corresponding is as qualified tobacco leaf.
Embodiment 1:
Applying device of the present invention, to carry out tobacco leaf selected, and its process is as follows:
1). tobacco leaf flows on star roller 1 with tobacco leaf stream, because star roller has spacing, so the tobacco leaf of not conglomeration will drop to the groove 2 that shakes below, the cigarette block of conglomeration will be stayed on star roller 1, then flows to conglomeration tobacco leaf belt 3;
2). the tobacco leaf the fallen groove 2 that shaken is made thinner, and continues the flow direction and to make thinner roller 4;
3). tobacco leaf is continued to make thinner at roller 4 place that makes thinner, and then falls to differential and to make thinner belt 5;
4). because differential belt speed is faster, so the distance between tobacco leaf is pulled open further.Formed herein thin layer, the tobacco leaf stream of non-overlapping copies, flow to offal checkout gear 6;
5). at offal checkout gear 6 place, after the tobacco leaf containing offal is taken pictures, rejected valve 7 by offal and reject.The tobacco leaf containing offal of rejecting flows to rejects offal belt, and remaining tobacco leaf flows to climbing belt 9;
6). tobacco leaf flows to blue or green cigarette by belt 9 of climbing and the go mouldy detection of tobacco leaf and eliminating system 11;
7). at blue or green cigarette and the go mouldy detection of tobacco leaf and eliminating system 8 place, after blue or green cigarette, the tobacco leaf that goes mouldy are taken pictures, rejected valve 12 by blue or green, mould cigarette and reject, blue or green cigarette, mould drift reject blue or green, mould cigarette belt 13, and remaining tobacco leaf flows to foreign material and rejects valve gear 16.
8). reject valve gear 16 place at foreign material, after non-cigarettes, wines and miscellaneous goods thing is taken pictures, rejected valve by non-cigarette and reject, non-cigarettes, wines and miscellaneous goods logistics is to the non-cigarettes, wines and miscellaneous goods thing belt 17 of rejecting; Remaining tobacco leaf is exactly qualified tobacco leaf, continues to flow to tobacco conveyer 18.
Consider that different slightly stalk and thin stalk differ greatly to X-ray transmission attenuation degree, the X-ray source in offal detection and eliminating system is selected to require that radiation transparent has certain adjustable extent, and namely voltage x current can in regulated in wider range.Consider this point, have selected Dandong Ao Long company XYG-160 type x ray generator as system source, this light source is configured with bifocal X-ray tube and high-frequency and high-voltage generator.Its Specifeca tion speeification is shown in Table 1:
Table 1X ray source key parameter
| Heater current | 0.1mA/3mA | Radiation angle | 40° |
| Film making maximum penetration | Fe28mm | Film making sensitivity | Be better than 1.5% |
| Focal spot size | EN12543 | Tube voltage | 30KV-120kV |
X source, according to 40 degree of radiation angles, can cover the four corner of 465mm detector.According to radiation angle and the detector length of X source, the installation theoretical level that can calculate light source distance belt is 631mm.Consider that the detector regimes that X source is covered has certain allowance, actual installation height is 650mm, as shown in Figure 2.
The image acquisition and processing module of offal detection and eliminating system, is made up of line sweep x-ray detector, image pick-up card, high speed industrial computer.Line sweep x-ray detector receives the X-ray through belt and tobacco leaf, is converted into the signal of telecommunication, and the signal of telecommunication, by after AD conversion, becomes data signal and exports.Image pick-up card gathers the picture signal that detector exports, and inputs to industrial computer software and carries out image real-time operation, complete image acquisition and processing flow process thus.
Scanning resolution, photoreceptor voltage scope and scan frequency are the critical performance parameters of x-ray detector.Detect offal in tobacco leaf, the diameter of thin stalk is 1.5mm, requires that detector possesses higher sensitivity.Meanwhile, be satisfied industrial large discharge on-line checkingi, require that detector possesses higher scan frequency under very fast belt conveyor velocity conditions.For this reason, have selected the XW8804 detector of X-SCAN company, its scanning resolution 0.4*0.6mm, the highest 4K/S of sweep speed, photoreceptor voltage scope 25-100KeV.The belt speed that this detector detection speed is corresponding can reach 2.4 meter per seconds.
In blue or green cigarette and the go mouldy detection of tobacco leaf and eliminating system, the selection of light-source system, CCD image-forming module and image processing module is as follows:
(1) light-source system
Light source adopts two highlighted LED condensation light sources, and interval 10cm distance is thrown light on to the tobacco leaf on belt with 80 degree of degree.By regulating installation site and angle, two LED light source illuminating raies are pooled on tobacco leaf bright straight line that a width is 20mm, linear CCD camera is aimed at and is converged linear pick-up imaging, can effectively improve brightness of image and stability, effectively can remove image shade for the interference identified simultaneously.
Light source color temperature and brightness are the crucial light source parameters affecting image quality.By blue or green cigarette and classification of flue-cured tobacco leaves effect of going mouldy under different illumination conditions such as analysis sunshine, fluorescent light etc., detection light source determines the highlighted LED condensation light source adopting chip colour temperature 5600K.By increasing plus lens on high-power LED light source on light-source brightness, making light source reach 30000LUX at the irradiation brightness of tobacco leaf surface, ensure that brightness of illumination effectively can meet the requirement of mould tobacco leaf detection.
(2) CCD image-forming module
Image-forming module adopts the 3CCD colorful digital camera of configuration wide-angle lens.Mould tobacco leaf, the particularly identification of blue or green cigarette depend on color characteristic, therefore select 3CCD camera by image color information distortion reduction to minimum, truly can reflect tobacco leaf color.Select the CVL107 camera that Denmark JAI produces, its sweep speed 21Kline/S, Pixel size 14umx14um, resolution ratio 2048.
It is 900mm that mould cigarette detects belt effective width, and each camera calibration width is 450mm, and calculating the theoretical setting height(from bottom) (object distance) of CCD according to Optical Formula is 460mm.Consider that marginal portion image effect is bad, increase detection width and cover, therefore actual installation height is designed to 500mm.
(3) image acquisition and processing module
Employing clock frequency is the DALSAX-64CLiPro high speed image acquisition board of 85MHZ, is transferred to industrial computer internal memory with making the tobacco leaf image real-time stabilization of acquisition.The software of image procossing operates on high speed industrial computer, and in order to meet the rate request of IMAQ and process, industrial computer adopts multi-core CPU to coordinate the acquisition process pattern of software multithread.The acquisition and processing of this pattern hypograph can walk abreast, and can gather next frame image simultaneously, thus can meet the requirement of real-time of mould tobacco leaf acquisition process when process one two field picture.
In Sorting System, the selection of light-source system and image processing system is as follows:
(1) light-source system
Light source is the detection key point of machine vision, devises novel great power LED condensation light source structure, as shown in Figure 3 in light source;
Article 4, high-power LED light source adopts crossing current source to control, and each LED chip is decayed consistent.Article two, light source interval 20mm is installed on above tobacco leaf operation passage, throws light on to tobacco leaf upper surface with 75 degree of angles.By regulating installation site and angle, making the illuminating ray of two light sources by plus lens, just pooling at tobacco leaf upper surface the bright straight line that a width is 20mm.The linear CCD camera of upper part is aimed at this and is converged linear pick-up image, can make collected by camera to brightness of image can effectively distinguish normal tobacco leaf and foreign material; Two other light source is installed and is run below passage with tobacco leaf, for throwing light on to tobacco leaf lower surface, its installation site and angle and two, top light source similar.
Designed great power LED condensation light source, relative to high-frequency florescent lamp, Halogen lamp LED, scattering LED light source, possesses following advantage: 1. light stability, and the rate of decay is slow, makes the stable performance of Equipment Inspection cell operation; 2. adopt after prism optically focused, significantly improve the light source uniformity, the better effects if of tobacco leaf image; 3. because brightness is very high, can greatly reduce use electric current, light source useful life can effectively extend.
(2) image acquisition and processing module
In the image acquisition and processing modular design that foreign material detect, have employed full encapsulation, modular Design Mode.The functions such as IMAQ, process, the mapping of rejecting position and CCD camera state modulator are all encapsulated in an image acquisition and processing box.After getting image from CCD camera, image acquisition and processing box carries out Recognize process by built-in FPGA special IC to image; After processing image, the built-in algorithm of FPGA automatically carries out rejecting position and maps, and generates and reject signal and export rejecting mechanism to.
Image acquisition and processing box is by the acquisition process function package of image and a hardware configuration, effectively can avoid the real time problems that computer software supple-settlement brings, the algorithm identifying processing of foreign material is not by the impact that computer multitask performs, and the stability of system also improves greatly.
The rejecting effect of this device:
(1) result is rejected containing stalk cigarette target thing
In order to verify that above-mentioned offal detects the reliability of occluding technique, carry out three groups of target thing demonstration tests: 1. get 200 light stalks as target thing punishment in advance, the number that statistics destemming equipment is rejected; 2. 200 are got containing stalk smoked sheet as target thing punishment in advance, the number that statistics destemming equipment is rejected; 3. in 50kg is not containing the qualified tobacco leaf of lotus king Y1 grade of offal, 200 are put into containing stalk smoked sheet, punishment in advance under 1000kg/h flow, the number that statistics destemming equipment is rejected.
Below often group tests equal replication three times, and according to the target thing number that test is rejected, the target thing rejecting rate calculated the results are shown in Figure shown in 4.
As can be seen from Figure 4, detect the rejecting rate of eliminating system to single light stalk and band leaf stalk all more than 95% containing stalk cigarette, after stalk is mixed tobacco leaf, the rejecting rate of offal declines to some extent, and average level is also about 92.5%.In first group and second group of target thing experiment, analyze containing stalk cigarette detecting unit the discrimination of target thing simultaneously.The image recognition probability of system to offal is quite high, and the discrimination of light stalk more than 98.8%, but picks phenomenon owing to can there is a small amount of leakage in rejecting process, and cause light to obstruct rejecting rate and drop to 95.2%, the rejecting rate of band leaf stalk drops to 96.2%.
(2) mould cigarette target thing rejects result
In order to verify that mould cigarette detects the reliability of occluding technique, carry out three groups of target thing demonstration tests equally: 1. get 50 blue or green sheets and mould respectively as target thing punishment in advance, statistics equipment rejects blue or green cigarette and mould cigarette number; 2. do not contain in the assorted qualified tobacco leaf of lotus king Y1 of mould at 50kg, mix 20 blue or green sheets and 20 mould respectively, punishment in advance under 500kg/h flow, statistics equipment rejects blue or green cigarette and mould cigarette number; 3. do not contain in the assorted qualified tobacco leaf of lotus king Y1 of mould at 50kg, mix the blue or green sheet of 20g and mould of 20g respectively, punishment in advance under 1000kg/h flow, the number that statistics equipment is rejected.
Below often group tests equal replication three times, and according to the target thing number that test is rejected, the target thing rejecting rate calculated the results are shown in Figure shown in 5 to Fig. 7.
Can find out, to independent blue or green sheet and mould target thing, the rejecting rate that mould cigarette detection eliminating system is tested at every turn is all more than 94%, and blue or green cigarette and mould cigarette on average rejecting rate are respectively 95.4%, 96%.Qualified smoked sheet and target thing mixing punishment in advance, target thing rejecting rate decreases, but system to the average rejecting rate of blue or green cigarette also more than 93%, to mould cigarette on average rejecting rate more than 80%.
(3) foreign material target thing rejects result
For checking foreign material detect the reliability of occluding technique, different typical foreign material are adopted to carry out elimination test as target thing.69 foreign material samples such as the scraps of paper, aluminium-foil paper, flax silk, transparent membrane, plastic optical fibre will be comprised and mix punishment in advance in the qualified tobacco leaf of 2.5kg lotus king Y1, the number of statistics equipment impurities removing.
More than test replication 4 times, according to the target thing number that test is rejected, the target thing rejecting rate calculated the results are shown in Figure shown in 8.
As can be seen from Figure 8, the rejecting rate of 4 repeating test to foreign material is respectively 93.8%, and average rejecting rate reaches 93.8%, and fluctuation range is not very large, stable equipment operation.This result shows that foreign material detect eliminating system and have higher reliability.
Claims (8)
1. a scrap prodn. line tobacco leaf automation selecting device, is characterized in that, comprises the tobacco leaf that connects successively except group's system, offal to detect and the detection of eliminating system, blue or green cigarette and the tobacco leaf that goes mouldy and eliminating system, Sorting System and tobacco conveyer; The entrance that raw tobacco removes group's system from tobacco leaf enters, remove the tobacco leaf after conglomeration to detect and eliminating system output from offal, to be detected by offal and the band that device for eliminating detects containing offal is mixed tobacco leaf, utilize offal to detect and the rejecting mechanism of eliminating system offal is rejected after tobacco leaf enter blue or green cigarette and the detection of the tobacco leaf that goes mouldy and eliminating system; To be detected by blue or green cigarette and the cigarette that goes mouldy and the isolated band containing blue or green cigarette and the cigarette that goes mouldy of eliminating system is mixed tobacco leaf, adopt blue or green cigarette and blue or green cigarette and the cigarette that goes mouldy are rejected by the go mouldy detection of tobacco leaf and the rejecting mechanism of eliminating system; Complete blue or green cigarette and go mouldy cigarette reject after tobacco leaf enter Sorting System, Sorting System accelerates tobacco leaf, in accelerator, utilize the rejecting mechanism of Sorting System to be rejected by foreign material, the tobacco leaf completed after foreign material rejecting is delivered to tobacco leaf gathering-device by tobacco conveyer, completes the selected of tobacco leaf;
Described tobacco leaf except group's system comprise star roller (1), the groove that shakes (2), roller of making thinner (4), group's of connecing tobacco leaf belt (3), differential make thinner belt (5);
The incoming end of described star roller exports with silo and is connected, and star roller is be arranged side by side multiple, and adjacent roller distance between axles is 20-50mm, the top of groove (2) that shake described in star roller (1) is positioned at; The rear end of star roller is provided with the described group's of connecing tobacco leaf belt; The described groove that shakes (2) rear end is connected to roller of making thinner (4), and described differential belt (5) of making thinner is arranged at roller rear of making thinner;
Described offal detects and eliminating system comprises X-ray source, CCD image-generating unit, the first graphics processing unit and the first culling unit; Described X-ray source is positioned at differential and makes thinner the top of belt (5), CCD image-generating unit is positioned at differential and makes thinner the below of belt (5), by the differential collected, the tobacco leaf image of making thinner on belt (5) is sent to the first graphics processing unit to CCD image-generating unit, first culling unit be arranged at differential make thinner belt (5) tail end and be controlled by the first graphics processing unit, first graphics processing unit exports rejects signal control rejecting air valve switch, when rejecting air valve and opening, offal is rejected by gases at high pressure ejection;
Described X-ray source is XYG-160 type x ray generator;
Described first graphics processing unit comprises line sweep x-ray detector, image pick-up card and industrial computer, line sweep x-ray detector receives the X-ray through belt and tobacco leaf, the picture signal that image pick-up card gathering line scanning x-ray detector exports, input industrial computer carries out image procossing.
2. scrap prodn. line tobacco leaf automation selecting device according to claim 1, it is characterized in that, the detection of described blue or green cigarette and the tobacco leaf that goes mouldy and eliminating system, to be detected with described offal by climbing belt (9) and eliminating system is connected, comprise the second graphics processing unit, connect cigarette channel, background belt (10), the first optical glass, the first LED illumination light source, first camera and the second culling unit;
Described first optical glass is arranged on above background belt, and the first LED illumination light source and first camera are positioned at above background belt; The light that first LED illumination light source exports is radiated on background belt; Tobacco leaf image on the background belt collected is sent to image processing system by first camera; Second culling unit and connect the tail end that cigarette channel is all arranged on background belt, the second culling unit is controlled by image processing system; During the second culling unit action, blown into by the tobacco leaf at the tail end place of background belt and connect in cigarette channel, when the second culling unit is not operating, the tobacco leaf at the tail end place of background belt falls in normal tobacco leaf passage;
First LED illumination light source adopts two LED condensation light sources, and two LED condensation light source interval 10cm range distribution are above background belt;
Described first camera is 3CCD colorful digital camera, and a high position for described 3CCD colorful digital camera distance background belt is 460mm-500mm;
Described second graphics processing unit comprises the DALSAX-64CLiPro image pick-up card and industrial computer that clock frequency is 85MHZ, and clock frequency is that the DALSAX-64CLiPro image pick-up card of 85MHZ gathers the image of first camera shooting and inputs industrial computer and carry out image procossing.
3. scrap prodn. line tobacco leaf automation selecting device according to claim 2, it is characterized in that, described Sorting System comprises two belt accelerating system, the 3rd graphics processing unit, the second LED illumination light source, the second optical glass, second camera and the 3rd culling unit;
Described second LED illumination light source comprises four LED light sources, second LED illumination light source is positioned at the below of two belt (14), wherein, article two, LED light source interval 20mm is installed on above tobacco leaf operation passage, with 75 degree of angles, tobacco leaf upper surface is thrown light on, two other LED light source interval 20mm is installed on tobacco leaf and runs below passage, throws light on to tobacco leaf lower surface with 75 degree of angles; Second optical glass is positioned at the top of two belt (14), tobacco leaf image on the two belts (14) collected is sent to the 3rd graphics processing unit by second camera, 3rd culling unit is arranged at the tail end of two belt (14) and is controlled by the 3rd graphics processing unit, 3rd graphics processing unit exports rejects signal control rejecting air valve switch, when rejecting air valve and opening, non-cigarette is rejected by gases at high pressure ejection;
3rd graphics processing unit adopts FPGA integrated circuit.
4. scrap prodn. line tobacco leaf automation selecting device according to claim 2, is characterized in that, described blue or green cigarette and the first camera of going mouldy in the detection of tobacco leaf and eliminating system are N number of, N be more than or equal to 1 integer; Each side configuration LED illumination light source of each camera.
5. scrap prodn. line tobacco leaf automation selecting device according to claim 3, it is characterized in that, in described blue or green cigarette and the go mouldy detection of tobacco leaf and eliminating system, the first LED illumination light source adopts LED prism condensation light source, camera adopts three CCD line scan cameras, and background belt selects blue or magenta.
6. a scrap prodn. line tobacco leaf automation method for concentrating, is characterized in that, adopts the scrap prodn. line tobacco leaf automation selecting device described in any one of claim 1-4;
Method for concentrating is:
Make tobacco leaf enter tobacco leaf except group's system from feeding machine, tobacco leaf advances along with the rolling of star roller, and agglomerating tobacco leaf enters the group's of connecing tobacco leaf belt and through the group's of connecing passage discharge, completes the removal of the group's of connecing tobacco leaf; Non-agglomerating tobacco leaf drops and is shaking on groove, and tobacco leaf moves backward with the shake of the groove that shakes and enters differential and to make thinner belt;
Differential make thinner belt tobacco leaf is delivered to offal detect and eliminating system, X-ray source is positioned at differential and makes thinner the below of belt (5), CCD image-generating unit is positioned at differential and makes thinner the top of belt (5), by the differential collected, the tobacco leaf image of making thinner on belt (5) is sent to the first graphics processing unit to CCD image-generating unit, first culling unit be arranged at differential make thinner belt (5) tail end and be controlled by the first graphics processing unit, first graphics processing unit exports rejects signal control rejecting air valve switch, when rejecting air valve and opening, offal is rejected by gases at high pressure ejection,
The light that first LED illumination light source exports is radiated on background belt; Tobacco leaf image on the background belt collected is sent to image processing system by first camera; Second culling unit and connect the tail end that cigarette channel is all arranged on background belt, the second culling unit is controlled by image processing system; During the second culling unit action, blown into by the tobacco leaf at the tail end place of background belt and connect in cigarette channel, when the second culling unit is not operating, the tobacco leaf at the tail end place of background belt falls in normal tobacco leaf passage;
The tobacco leaf entered in normal tobacco leaf passage enters Sorting System with double belt, tobacco leaf leaves along with the double belt run up, the light that second LED illumination light source exports is radiated on double belt, tobacco leaf image on the two belts (14) collected is sent to the 3rd graphics processing unit by second camera, 3rd culling unit is arranged at the tail end of two belt (14) and is controlled by the 3rd graphics processing unit, 3rd graphics processing unit exports rejects signal control rejecting air valve switch, when rejecting air valve and opening, non-cigarette is rejected by gases at high pressure ejection, normal tobacco leaf inputs to tobacco leaf gathering-device with tobacco conveyer.
7. according to claim 6 scrap prodn. line tobacco leaf automation method for concentrating, it is characterized in that, described second graphics processing unit is according to the blue or green cigarette of the H component identification of the expression picture tone of tobacco leaf image and the cigarette that goes mouldy; If the H component of current tobacco leaf image is less than or equal to 60, then judge there is not blue or green cigarette in the tobacco leaf that current tobacco leaf image is corresponding and the cigarette that goes mouldy; The H component of current tobacco leaf image is greater than 60 else if, then judge to there is blue or green cigarette in the tobacco leaf that current tobacco leaf image is corresponding and the cigarette that goes mouldy.
8. according to claim 7 scrap prodn. line tobacco leaf automation method for concentrating, it is characterized in that, described second graphics processing unit is according to the blue or green cigarette of the H component identification of the expression picture tone of tobacco leaf image and the cigarette that goes mouldy; If the H component of current tobacco leaf image is between 60-240, then judge to there is blue or green cigarette in the tobacco leaf that current tobacco leaf image is corresponding and the cigarette that goes mouldy, if the H component of current tobacco leaf image is not between 60-240, then judge that tobacco leaf that current tobacco leaf image is corresponding is as qualified tobacco leaf.
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