CN107084995A - A kind of quantitative evaluation method of density of tobacco rod distributing homogeneity - Google Patents
A kind of quantitative evaluation method of density of tobacco rod distributing homogeneity Download PDFInfo
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- CN107084995A CN107084995A CN201710350791.4A CN201710350791A CN107084995A CN 107084995 A CN107084995 A CN 107084995A CN 201710350791 A CN201710350791 A CN 201710350791A CN 107084995 A CN107084995 A CN 107084995A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N22/00—Investigating or analysing materials by the use of microwaves or radio waves, i.e. electromagnetic waves with a wavelength of one millimetre or more
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N22/00—Investigating or analysing materials by the use of microwaves or radio waves, i.e. electromagnetic waves with a wavelength of one millimetre or more
- G01N22/04—Investigating moisture content
Abstract
A kind of quantitative evaluation method of density of tobacco rod distributing homogeneity, the characteristics of this method is typically distributed according to density of tobacco rod distribution in the dense type in two ends, first make density of tobacco rod distribution curve, and density of tobacco rod data are extracted, thoroughly evaluating is then carried out to density of tobacco rod distributing homogeneity according to the evaluation index of structure.The characteristics of present invention has simple possible, the uniformity of energy quantitative assessment density of tobacco rod distribution is controlled Cigarette design and coiling process significant.
Description
Technical field：
The invention belongs to cigarette product technical field of quality detection, and in particular to a kind of table of evaluation density of tobacco rod distributing homogeneity
Levy method
Background technology：
During production of cigarettes, pipe tobacco is after rolling up and connecting machine aspirator formation system, and the Density Distribution of tobacco bunch changes, its
The density that middle cigarette lights end is higher than other parts.Density of tobacco rod distribution is to influence one of important indicator of cigarette quality, not only
The physical indexs such as weight, hardness, resistance to suction, the cigarette end tobacco-falling quantity of Cigarette are influenceed, and then influence cigarette smoke nuisance
The burst size of matter, while can also influence the aesthetic quality during cigarette consumption, and then influences consumer to recognize cigarette product
It can spend.The uniformity coefficient of density of tobacco rod distribution is by the real-time online control during cigarette machine filling pipe tobacco to pipe tobacco loading
System is adjusted, and the fluctuation of loading or orderly adjustment have a major impact to the uniformity coefficient that density of tobacco rod is distributed.Cigarette pipe tobacco
Density distribution uniformity is poor, can cause the fluctuation of larger cigarette weight and resistance to suction, so as to have impact on cigarette manufacturing quality
Stability, especially cigarette end pipe tobacco loading is excessive, causes cigarette to have impact on volume because resistance to suction is larger in aspiration procedure
The aesthetic quality of cigarette.
At present, domestic tobacco productive corporation has started to concern density of tobacco rod distribution, and research density of tobacco rod distribution is empty to cigarette
Head rate, end tobacco-falling quantity and cigarette fall the affecting laws of head condition.But how quantitative assessment density of tobacco rod distributing homogeneity
Method is but rarely reported.
Chinese invention patent（CN200720024015.7）There is provided a kind of cigarette denseness microwave testing apparatus, device tool
There are the non-destructive of Non-Destructive Testing and the Stability and veracity of density data detection.For cigarette enterprise, how to utilize
It is a thing highly significant that density data, which carries out density of tobacco rod distributing homogeneity evaluation, it is therefore necessary to set up density of tobacco rod
Distributing homogeneity evaluation method.
Chinese invention patent（CN104165822A）The uniformity being distributed using VC Method quantitative assessment density of tobacco rod,
This method controls the density data of uniform segment to evaluate density distribution uniformity using in the middle of cigarette, to a certain extent
Can be that lifting cigarette quality and optimal control provide reference frame.But it is equal to show the dense centre in two ends based on density of tobacco rod
Even distribution is true, sets up a kind of full branch Cigarette density distribution uniformity evaluation method to Cigarette design and coiling process control
Fixture is significant.
The content of the invention
Commented in view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide a kind of quantifying for density of tobacco rod distributing homogeneity
Valency method.The characteristics of being typically distributed according to density of tobacco rod distribution in the dense type in two ends, first makes density of tobacco rod distribution curve, and right
Density of tobacco rod data are extracted, and then carry out thoroughly evaluating to density of tobacco rod distributing homogeneity according to the evaluation index of structure.
The purpose of the present invention is achieved by the following technical programs.
A kind of method for evaluating density of tobacco rod distributing homogeneity, comprises the following steps：
Step one：Cigarette axial direction moisture, the demarcation of density
a, the axial moisture of cigarette demarcation：
10 cigarette are tested with microwave moisture density type analyzer MW 3220, and result is stored in the INFO options of result menu
Under（The result menu that instrument software is carried）；10 cigarette for determining to be measured by MW 3220 using standard laboratory methods
The average value of tobacco moisture；The moisture measured by MW 3220 compared with the moisture that laboratory is determined, and determine inclined
Difference.
b, the axial density of cigarette demarcation
10 cigarette are tested with microwave moisture density type analyzer MW 3220, and density data is preserved；Claimed respectively with balance
Measure each branch pipe tobacco weight in 10 cigarette measured by MW 3220；The cigarette by each branch cigarette measured of MW 3220
The average value of silk weight compared with the average weight weighed up, and by balance weigh value and MW3220 measured value be used for it is close
Spend correction coefficient.
Step 2：The test of density of tobacco rod, moisture data
Moisture and density correction are carried out according to step a pair of MW3220, cigarette is determined with the microwave moisture density type analyzer after correction
Moisture and density data, are detected since being filled at fragment position pipe tobacco, and detection spacing is 1mm, and detection length is according to Cigarettesize
Parameter is set (because cigarette length has different size, detection length is set according to cigarette length specification)；
Step 3：The acquisition of cigarette standard density, the density data conversion that microwave moisture Density Measuring Instrument is obtained is that moisture content is 12%
Standard density data, wherein convert formula is：
W% is actual density in formulaCorresponding actual measurement moisture,For the standard density data after conversion.
Step 4：The foundation of evaluation index
1st, the cigarette standard density data of acquisition are subjected to matrixing processing：Cigarette standard density matrix A is made up of m × n numbers,
It is designated as, Am×n.Wherein n is cigarette quantity, and m is density of tobacco rod.Whereina ijDensity value of the jth branch cigarette at i-th of unit is represented,
Vectora ﹒ jFor the density value in the different unit lengths of jth branch cigarette.Vectorial B and C are the column vector of the number of m × 1 composition, note
For Bm×1And Cm×1。
2nd, the drafting of cigarette standard density distribution curve：The cigarette standard density data obtained according to the above method, with cigarette
Branch length value, using the cigarette standard density data on cigarette different length position as ordinate, makes cigarette close as abscissa
Spend distribution curve.
3rd, the evaluation index of cigarette standard density distributing homogeneity is built：Order matrix
In the present invention, the cigarette can be alternatively ramuscule cigarette for conventional cigarette.
The advantage of the invention is that：The uniformity that density of tobacco rod is distributed is evaluated using a kind of new method, method
Simple possible, the uniformity of energy quantitative assessment density of tobacco rod distribution, while this method is evaluating the process of density of tobacco rod uniformity
In consider the dense type Density Distribution in cigarette two ends, to Cigarette design and coiling process control it is significant.
Brief description of the drawings
Fig. 1 is the cigarette standard density distribution curve of the embodiment of the present invention 1.
Fig. 2 is the cigarette standard density distribution curve of the embodiment of the present invention 2.
Embodiment：
The present invention is described in further detail with reference to examples of implementation.
Embodiment 1：Domestic certain ramuscule cigarette trade mark 1 and the trade mark 2, comparative analysis difference ramuscule cigarette trade mark density of tobacco rod point
The uniformity of cloth.
Comprise the following steps that：
1st, the measure of cigarette standard density distributed data：
(1) rectify an instrument parameter：
The cigarette trade mark 1 and each some 20 of the cigarette sample of the cigarette trade mark 2 are taken, and carries out mark respectively.
Cigarette moisture is corrected：10 cigarette are tested with microwave moisture density type analyzer MW 3220, and result is stored in result
Under the INFO options of menu；10 cigarette tobacco moistures for determining to be measured by MW 3220 using standard laboratory methods
Average value；The moisture measured by MW 3220 compared with the moisture that laboratory is determined, and determination deviation value.According to
This method carries out moisture correction to the cigarette trade mark 1 and the cigarette trade mark 2 respectively, and records deviation respectively.
Density of tobacco rod is corrected：Cigarette sample is measured using cigarette microwave moisture density type analyzer, and packing density
Data.Then m length is intercepted to cigarette sample, and interception part pipe tobacco is weighed with electronic balance.Justified by cigarette
Week, cigarette testing length and Density Distribution data can calculate cigarette part of detecting weight.According to the ratio of two weight
The cigarette correction coefficient of different size cigarette can be calculated.The cigarette trade mark 1 and the cigarette trade mark 2 are carried out respectively in the method
Density correction, and packing density correction coefficient respectively.
(2) the ramuscule cigarette trade mark 1 and each 20 of the cigarette sample of the ramuscule cigarette trade mark 2 are taken, the parameter that rectifies an instrument is set, used
MW3220 type microwave moisture density type analyzers determine cigarette moisture and density respectively.
(3) it is standard density number that moisture content is 12% to be converted density of tobacco rod data according to the cigarette moisture data of acquisition
According to.
2nd, the drafting of density of tobacco rod distribution curve：
The cigarette standard density distributed data obtained according to step above-mentioned steps, using cigarette length value as abscissa, with cigarette
Density of tobacco rod data on different length position are ordinate, cigarette standard density distribution curve are made respectively, as shown in Figure 1.
3rd, the evaluation of cigarette standard density distributing homogeneity：
Embodiment 2：Domestic certain conventional cigarette trade mark 3 and the trade mark 4, the distribution of comparative analysis various conventional cigarette trade mark density of tobacco rod
Uniformity.
1st, the measure of cigarette standard density distributed data：With example 1.
2nd, the drafting of density of tobacco rod distribution curve：With example 1, Fig. 2 is seen.
3rd, the evaluation of cigarette standard density distributing homogeneity：
Claims (2)
1. a kind of quantitative evaluation method of density of tobacco rod distributing homogeneity, it is characterised in that：Comprise the following steps：
Step one：Cigarette axial direction moisture, the demarcation of density
a, the axial moisture of cigarette demarcation：
10 cigarette are tested with microwave moisture density type analyzer MW 3220, and result is stored in the INFO options of result menu
Under；The average value by the 10 cigarette tobacco moistures measured of MW 3220 is determined using standard laboratory methods；By MW
3220 moisture measured are compared with the moisture that laboratory is determined, and determination deviation value；
b, the axial density of cigarette demarcation
10 cigarette are tested with microwave moisture density type analyzer MW 3220, and density data is preserved；Claimed respectively with balance
Measure each branch pipe tobacco weight in 10 cigarette measured by MW 3220；The cigarette by each branch cigarette measured of MW 3220
The average value of silk weight compared with the average weight weighed up, and by balance weigh value and MW3220 measured value be used for it is close
Spend correction coefficient；
Step 2：The test of density of tobacco rod, moisture data
Moisture and density correction are carried out according to step a pair of MW3220, cigarette is determined with the microwave moisture density type analyzer after correction
Moisture and density data, are detected since being filled at fragment position pipe tobacco, and detection spacing is 1mm, and detection length is according to Cigarettesize
Parameter is set；
Step 3：The acquisition of cigarette standard density, the density data conversion that microwave moisture Density Measuring Instrument is obtained is that moisture content is 12%
Standard density data, wherein convert formula is：Convert formula is：
W% is actual density in formulaCorresponding actual measurement moisture,For the standard density data after conversion；
Step 4：The foundation of evaluation index
1）, the cigarette standard density data of acquisition are subjected to matrixing processing：Cigarette standard density matrix A has m × n array
Into being designated as, Am×n；Wherein n is cigarette quantity, and m is density of tobacco rod；Whereina ijRepresent jth branch cigarette close at i-th of unit
Angle value, vectora ﹒ jFor the density value in the different unit lengths of jth branch cigarette；Vectorial B and C be the number of m × 1 composition row to
Amount, is designated as Bm×1And Cm×1；
2）, cigarette standard density distribution curve drafting：The cigarette standard density data obtained according to the above method are long with cigarette
Angle value is as abscissa, using the cigarette standard density data on cigarette different length position as ordinate, makes density of tobacco rod point
Cloth curve；
3）, cigarette standard density distributing homogeneity evaluation index build：Order matrix
2. the quantitative evaluation method of density of tobacco rod distributing homogeneity according to claim 1, it is characterised in that：The cigarette
For conventional cigarette or ramuscule cigarette.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107907445A (en) * | 2017-11-07 | 2018-04-13 | 浙江中烟工业有限责任公司 | A kind of intelligence cigarette soft spots hard spot detection method |
| CN108872013A (en) * | 2018-04-10 | 2018-11-23 | 红云红河烟草(集团)有限责任公司 | A method of judging that cigarette machine equals quasi- disk groove pipe tobacco filling situation |
| CN109100263A (en) * | 2018-10-22 | 2018-12-28 | 云南中烟工业有限责任公司 | A kind of method of quick predict cigarette suction uniformity |
| CN109146301A (en) * | 2018-08-30 | 2019-01-04 | 山东中烟工业有限责任公司 | A kind of segmented cigarette pipe tobacco distributing homogeneity evaluation method and system |
| CN109171012A (en) * | 2018-10-22 | 2019-01-11 | 云南中烟工业有限责任公司 | A kind of method of the smooth slot specification of Rapid matching cigarette machine flattening disc |
| CN109315826A (en) * | 2018-10-22 | 2019-02-12 | 云南中烟工业有限责任公司 | A kind of method of the Rapid matching ramuscule cigarette smooth slot specification of cigarette machine flattening disc |
| CN110231432A (en) * | 2018-03-05 | 2019-09-13 | 湖南中烟工业有限责任公司 | Reduce the method that cigarette combustion cone falls a rate |
| CN110231431A (en) * | 2018-03-05 | 2019-09-13 | 湖南中烟工业有限责任公司 | A method of prediction cigarette combustion cone falls head tendency |
| CN110726646A (en) * | 2019-10-25 | 2020-01-24 | 中国烟草总公司郑州烟草研究院 | Method for evaluating stability of cigarette axial density distribution |
| CN110726645A (en) * | 2019-10-25 | 2020-01-24 | 中国烟草总公司郑州烟草研究院 | Method for evaluating stability of axial density distribution of cigarette tobacco shreds |
| CN110857941A (en) * | 2018-08-24 | 2020-03-03 | 湖南中烟工业有限责任公司 | Method for predicting falling head of cigarette combustion cone and application thereof |
| CN111678841A (en) * | 2020-07-30 | 2020-09-18 | 贵州中烟工业有限责任公司 | Evaluation method suitable for cigarette density uniformity |
| CN112394006A (en) * | 2020-11-30 | 2021-02-23 | 山东中烟工业有限责任公司 | Filter stick stability evaluation method and microwave density detector |
| CN112526077A (en) * | 2020-12-08 | 2021-03-19 | 福建中烟工业有限责任公司 | Tobacco blending uniformity evaluation method based on water content |
| CN113953209A (en) * | 2021-10-27 | 2022-01-21 | 云南中烟工业有限责任公司 | Cigarette nondestructive uniformity processing method |
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| CN110231431A (en) * | 2018-03-05 | 2019-09-13 | 湖南中烟工业有限责任公司 | A method of prediction cigarette combustion cone falls head tendency |
| CN108872013A (en) * | 2018-04-10 | 2018-11-23 | 红云红河烟草(集团)有限责任公司 | A method of judging that cigarette machine equals quasi- disk groove pipe tobacco filling situation |
| CN108872013B (en) * | 2018-04-10 | 2020-11-17 | 红云红河烟草(集团)有限责任公司 | Method for judging filling condition of cut tobacco in flat disc groove of cigarette making machine |
| CN110857941A (en) * | 2018-08-24 | 2020-03-03 | 湖南中烟工业有限责任公司 | Method for predicting falling head of cigarette combustion cone and application thereof |
| CN110857941B (en) * | 2018-08-24 | 2022-03-15 | 湖南中烟工业有限责任公司 | Method for predicting falling head of cigarette combustion cone and application thereof |
| CN109146301A (en) * | 2018-08-30 | 2019-01-04 | 山东中烟工业有限责任公司 | A kind of segmented cigarette pipe tobacco distributing homogeneity evaluation method and system |
| CN109146301B (en) * | 2018-08-30 | 2022-02-18 | 山东中烟工业有限责任公司 | Sectional type cigarette tobacco distribution uniformity evaluation method and system |
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| CN109100263A (en) * | 2018-10-22 | 2018-12-28 | 云南中烟工业有限责任公司 | A kind of method of quick predict cigarette suction uniformity |
| CN110726645A (en) * | 2019-10-25 | 2020-01-24 | 中国烟草总公司郑州烟草研究院 | Method for evaluating stability of axial density distribution of cigarette tobacco shreds |
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| CN112394006A (en) * | 2020-11-30 | 2021-02-23 | 山东中烟工业有限责任公司 | Filter stick stability evaluation method and microwave density detector |
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| CN112526077A (en) * | 2020-12-08 | 2021-03-19 | 福建中烟工业有限责任公司 | Tobacco blending uniformity evaluation method based on water content |
| CN113953209A (en) * | 2021-10-27 | 2022-01-21 | 云南中烟工业有限责任公司 | Cigarette nondestructive uniformity processing method |
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