CN103472195B - SPC is utilized to carry out method for measuring to online Moisture Meter measurement accuracy - Google Patents
SPC is utilized to carry out method for measuring to online Moisture Meter measurement accuracy Download PDFInfo
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- CN103472195B CN103472195B CN201310463509.5A CN201310463509A CN103472195B CN 103472195 B CN103472195 B CN 103472195B CN 201310463509 A CN201310463509 A CN 201310463509A CN 103472195 B CN103472195 B CN 103472195B
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Abstract
The open one of the present invention utilizes SPC to carry out method for measuring to online Moisture Meter measurement accuracy.According to need of production, take into account and meet measurement demand and handled easily demand, produce online Moisture Meter according to tobacco leaf upper, middle and lower 3 positions, 3 passages are set up at each position, and specific class sets up again 6 passages respectively, vertical 15 passages of building together; Or set up passage according to the trade mark, operation, and each passage is compared.According to comparison data, fundamental error is used online Moisture Meter accuracy to be carried out to the statistical study of Preliminary Determination and measuring process.The present invention utilizes SPC control chart to analyze the stability of the online Moisture Meter measuring accuracy of tobacco leaf production, improves the accuracy of tobacco product moisture measurement, guarantees that the qualification rate of moisture content in leaves increases substantially.Carry out complete monitoring to production run, science park separates random fluctuation and the unusual fluctuations of product quality in production run, and takes measures to eliminate its impact, and process is maintained only by the slave mode that random factor affects.
Description
Technical field
The open one of the present invention utilizes SPC to carry out method for measuring to online Moisture Meter measurement accuracy.
Background technology
In the past, the online Moisture Meter in tobacco enterprise redrying workshop was divided into top, middle part, 3, bottom passage by position, and Primary processing shop sets up passage according to the trade mark, and the mensuration of accuracy is simply carry out static Comparison calibration to each passage.Show in daily test process that online Moisture Meter is after adjustment at zero point accurately, its zero point value can in time, factor occurrence tendency skew (as shown in Figure 1) such as environment.
All there is measuring error in test process, cause whole online Moisture Meter measuring accuracy deviation in production run comparatively large, make online production quality instability, fluctuate greatly, be difficult to control; Increase the difficulty of moisture comparison work simultaneously, accuracy cannot be made to online Moisture Meter precision and measure.
Summary of the invention
The object of the invention is to overcome above-mentioned prior art not enough, provide one to utilize SPC to the method for measuring of production of cigarettes process online Moisture Meter accuracy, to improve the stability of online Moisture Meter measuring accuracy and online production process quality control.
The present invention utilizes SPC to carry out method for measuring technical scheme to online Moisture Meter measurement accuracy:
To produce online Moisture Meter according to tobacco leaf upper, middle and lower 3 positions, 3 passages are set up at each position, and specific class sets up again 6 passages respectively, vertical 15 passages of building together; Or set up passage according to the trade mark, operation, and dynamic comparison is carried out to each passage;
Use SPC control technology and combine " cigarette process specification ", setting up the data processing principle of online Moisture Meter contrastive test, tendency accuracy measures rule and control flow;
Adopt fundamental error σ, σ=Y-X, Y to represent online Moisture Meter displayed value, X represents baking oven value, and the accuracy of online Moisture Meter is carried out to the statistical study of Preliminary Determination and measuring process, concrete steps are:
(1), online Moisture Meter Determination,
(1), determine Interventions Requested and the frequency, complete the sampling of contrastive test, test, data inputting;
(2), sampling, detection method: 20-50cm place sampling behind Moisture Meter probe position, when fluctuation in online Moisture Meter displayed value 10s is less than 0.2%, top layer material 5 times are captured continuously in regulation sample position, get 50g, and the displayed value of the online Moisture Meter of synchronous recording, record result is accurate to 2 significant digits; Good seal after air in the sample got necessary discharge in time sealing bag, and enclose label, indicate this sample online Moisture Meter display water percentage, sample sequence number, grade;
(2). per working day checks " online Moisture Meter contrastive test record " control chart, and measures control chart by online Moisture Meter accuracy mensuration criterion; Adjustment or checking are carried out to the undesirable operation Moisture Meter passage of mensuration, and adjustment, the result are fed back relevant departments in time;
(3). detect moisture by the sampling batch of regulation and test item sampling Oven Method, online for each operation Moisture Meter displayed value Y and baking oven measurement result X is compared, draws fundamental error δ; By " moisture comparison data " hurdle in all detection data inputting data actuation, data actuation generates automatically " online Moisture Meter contrastive test tables of data ";
(4). data acquisition generates " online Moisture Meter contrastive test Data Control figure " automatically according to detecting data, and comparison personnel and workshop gauger measure criterion according to online Moisture Meter detection accuracy and carry out evaluation of measuring to control chart;
Mensuration meets the requirements and illustrates that online Moisture Meter is controlled; Measure undesirable, then carry out adjustment by workshop gauger, after adjustment by comparison personnel again sub-sampling compare, by that analogy.
It is as follows that described online Moisture Meter accuracy measures criterion:
Redrying production line: same operation, same Moisture Meter passage fundamental error σ occur any one in following principle, measure online Moisture Meter detection accuracy and do not meet technological requirement;
Tobacco section: control limit ± 1.50%
Criterion one: continuous 2 points drop on ± 1.00% outside;
Criterion two: have in continuous 5 points 4 points drop on ± 0.50% outside.
Blade sections: control limit ± 1.00%
Criterion one: 1 point drops on ± 1.00% outside (exceeding standard range of control);
Criterion two: continuous 2 points drop on ± 0.66% outside;
Criterion three: have in continuous 5 points 4 points drop on ± 0.33% outside,
Primary processing line: same operation, same Moisture Meter passage fundamental error δ occur any one in following principle, measure online Moisture Meter detection accuracy and do not meet technological requirement.
Blade sections: σ=0.33%
Criterion one: continuous 2 points drop on ± 2 σ outside;
Criterion two: have in continuous 5 points 4 points drop on ± 1 σ outside.
Cut tobacco section (containing stem section): σ=0.2%
Criterion one: 1 point drops on ± 3 σ outside;
Criterion two: continuous 2 points drop on ± 2 σ outside;
Criterion three: have in continuous 5 points 4 points drop on ± 1 σ outside.
The inventive method
Utilize SPC control chart to analyze the stability of the online Moisture Meter measuring accuracy of tobacco leaf production, improve the accuracy of tobacco product moisture measurement, ensure that the qualification rate of moisture content in leaves increases substantially.Complete monitoring is carried out to production run, the random fluctuation distinguishing product quality in production run of science and unusual fluctuations, and take measures to eliminate its impact, process is maintained only by the slave mode that random factor affects, thus reaches the steady middle raising of product quality.
Accompanying drawing explanation
Fig. 1 represents that online Moisture Meter is after adjustment at zero point accurately, its zero point value can in time, the factor occurrence tendency skew such as environment.In figure, Y represents online Moisture Meter displayed value, and X represents baking oven value;
Fig. 2 is redrying of the present invention online Moisture Meter contrastive test record controls figure.
Fig. 3 is redrying of the present invention online Moisture Meter contrastive test record controls figure.
Fig. 4 is redrying of the present invention online Moisture Meter contrastive test record controls figure.
Fig. 5 is redrying of the present invention online Moisture Meter contrastive test record controls figure.
Fig. 6 is throwing of the present invention online Moisture Meter contrastive test record controls figure.
Fig. 7 is the inventive method redrying production line online Moisture Meter contrastive test data (subordinate list 1).
Fig. 8 is the inventive method primary processing line online Moisture Meter contrastive test data (subordinate list 2) in production run in month.
Embodiment
Below in conjunction with accompanying drawing below and form, the inventive method is described in further details.
The present invention specifically will produce online Moisture Meter according to tobacco leaf upper, middle and lower 3 positions, and 3 passages are set up at each position, and specific class sets up again 6 passages respectively, vertical 15 passages of building together; Or set up passage according to the trade mark, operation, and dynamic comparison is carried out to each passage.Use SPC control technology and combine " cigarette process specification ", setting up the data processing principle of online Moisture Meter contrastive test, tendency accuracy measures rule and control flow.
Then will produce online Moisture Meter according to tobacco leaf upper, middle and lower 3 positions, 3 passages are set up at each position, and specific class sets up again 6 passages respectively, vertical 15 passages of building together; Or set up passage according to the trade mark, operation, and dynamic comparison is carried out to each passage;
Use SPC control technology and combine " cigarette process specification ", setting up the data processing principle of online Moisture Meter contrastive test, tendency accuracy measures rule and control flow;
Adopt fundamental error σ, σ=Y-X, Y to represent online Moisture Meter displayed value, X represents baking oven value, and the accuracy of online Moisture Meter is carried out to the statistical study of Preliminary Determination and measuring process, concrete steps are:
(1), online Moisture Meter Determination,
(1), determine Interventions Requested and the frequency, complete the sampling of contrastive test, test, data inputting;
(2), sampling, detection method: 20-50cm place sampling behind Moisture Meter probe position, when fluctuation in online Moisture Meter displayed value 10s is less than 0.2%, top layer material 5 times are captured continuously in regulation sample position, get 50g, and the displayed value of the online Moisture Meter of synchronous recording, record result is accurate to 2 significant digits; Good seal after air in the sample got necessary discharge in time sealing bag, and enclose label, indicate this sample online Moisture Meter display water percentage, sample sequence number, grade;
(2). per working day checks " online Moisture Meter contrastive test record " control chart, and measures control chart by online Moisture Meter accuracy mensuration criterion; Adjustment or checking are carried out to the undesirable operation Moisture Meter passage of mensuration, and adjustment, the result are fed back relevant departments in time;
(3). detect moisture by the sampling batch of regulation and test item sampling Oven Method, online for each operation Moisture Meter displayed value Y and baking oven measurement result X is compared, draws fundamental error δ; By " moisture comparison data " hurdle in all detection data inputting data actuation, data actuation generates automatically " online Moisture Meter contrastive test tables of data ";
(4). data acquisition generates " online Moisture Meter contrastive test Data Control figure " automatically according to detecting data, and comparison personnel and workshop gauger measure criterion according to online Moisture Meter detection accuracy and carry out evaluation of measuring to control chart;
Mensuration meets the requirements and illustrates that online Moisture Meter is controlled; Measure undesirable, then carry out adjustment by workshop gauger, after adjustment by comparison personnel again sub-sampling compare, by that analogy.
It is as follows that described online Moisture Meter accuracy measures criterion:
Redrying production line: same operation, same Moisture Meter passage fundamental error σ occur any one in following principle, measure online Moisture Meter detection accuracy and do not meet technological requirement;
Tobacco section: control limit ± 1.50%
Criterion one: continuous 2 points drop on ± 1.00% outside;
Criterion two: have in continuous 5 points 4 points drop on ± 0.50% outside.
Blade sections: control limit ± 1.00%
Criterion one: 1 point drops on ± 1.00% outside (exceeding standard range of control);
Criterion two: continuous 2 points drop on ± 0.66% outside;
Criterion three: have in continuous 5 points 4 points drop on ± 0.33% outside,
Primary processing line: same operation, same Moisture Meter passage fundamental error δ occur any one in following principle, measure online Moisture Meter detection accuracy and do not meet technological requirement.
Blade sections: σ=0.33%
Criterion one: continuous 2 points drop on ± 2 σ outside;
Criterion two: have in continuous 5 points 4 points drop on ± 1 σ outside.
Cut tobacco section (containing stem section): σ=0.2%
Criterion one: 1 point drops on ± 3 σ outside;
Criterion two: continuous 2 points drop on ± 2 σ outside;
Criterion three: have in continuous 5 points 4 points drop on ± 1 σ outside.
The present invention adopts fundamental error σ: σ=Y-X(Y to represent online Moisture Meter displayed value, and X represents baking oven value), the accuracy of online Moisture Meter is carried out to the statistical study of Preliminary Determination and measuring process, it is as follows that online Moisture Meter accuracy measures criterion:
1. redrying production line: same operation, same Moisture Meter passage fundamental error σ occur any in following principle, measure online Moisture Meter detection accuracy and do not meet technological requirement.
Tobacco section: control limit ± 1.50%
Criterion one: continuous 2 points drop on ± 1.00% outside;
Criterion two: have in continuous 5 points 4 points drop on ± 0.50% outside.
Blade sections: control limit ± 1.00%
Criterion one: 1 point drops on ± 1.00% outside (exceeding standard range of control);
Criterion two: continuous 2 points drop on ± 0.66% outside;
Criterion three: have in continuous 5 points 4 points drop on ± 0.33% outside.
2, primary processing line: same operation, same Moisture Meter passage fundamental error δ occur any in following principle, measure online Moisture Meter detection accuracy and do not meet technological requirement.
Blade sections: σ=0.33%
Criterion one: continuous 2 points drop on ± 2 σ outside;
Criterion two: have in continuous 5 points 4 points drop on ± 1 σ outside.
Cut tobacco section (containing stem section): σ=0.2%
Criterion one: 1 point drops on ± 3 σ outside;
Criterion two: continuous 2 points drop on ± 2 σ outside;
Criterion three: have in continuous 5 points 4 points drop on ± 1 σ outside.
One, online Moisture Meter Determination
1, determine Interventions Requested and the frequency, complete the sampling of contrastive test, test, data inputting.
2, sampling, detection method: 20-50cm place sampling behind Moisture Meter probe position, when fluctuation in online Moisture Meter displayed value 10s is less than 0.2%, top layer material 5 times are captured continuously in regulation sample position, about 50g, and the displayed value of the online Moisture Meter of synchronous recording, record result is accurate to 2 significant digits.After the necessary good seal in time (discharging air in sealing bag) of the sample got, and enclose label, indicate this sample online Moisture Meter display water percentage, sample sequence number, grade.
Two. per working day checks " online Moisture Meter contrastive test record " control chart, and measures control chart by accuracy mensuration criterion: meet the requirements if measure, then by the 1st article of execution; If measure undesirable, by the 4th article of execution; Adjustment or checking are carried out to the undesirable operation Moisture Meter passage of mensuration, and adjustment, the result are fed back relevant departments in time, see accompanying drawing 2-Fig. 5.
Three. adopt Oven Method to detect moisture by the sampling batch of regulation and test item, online for each operation Moisture Meter displayed value Y and baking oven measurement result X is compared, draws fundamental error δ.By " moisture comparison data " hurdle in all detection data inputting data actuation, data actuation generates automatically " online Moisture Meter contrastive test tables of data ", as shown in appendix 1.
Four. number is adopted and is automatically generated " online Moisture Meter contrastive test Data Control figure " as shown in Figure 6 according to detection data, and comparison personnel and workshop gauger measure criterion according to online Moisture Meter detection accuracy and measure control chart.Mensuration meet the requirements illustrate online Moisture Meter controlled, measure undesirable, then carry out adjustment by workshop gauger, after adjustment by comparison personnel again sub-sampling compare, by that analogy.
The inventive method, utilizes SPC control chart to analyze the stability of the online Moisture Meter measuring accuracy of tobacco leaf production, improves the accuracy of tobacco product moisture measurement, ensure that the qualification rate of moisture content in leaves increases substantially.Complete monitoring is carried out to production run, the random fluctuation distinguishing product quality in production run of science and unusual fluctuations, and take measures to eliminate its impact, process is maintained only by the slave mode that random factor affects, thus reaches the steady middle raising of product quality.
1, electronic balance sensibility reciprocal involved by the inventive method is 0.001g.
2, oven temperature fluctuation ± 1 DEG C involved by the inventive method, temperature uniformity ± 2 DEG C; The baking oven contrastive test cycle is 1 time/3 months.
3, sample box involved by the inventive method requires stainless steel constant weight punching sample box.
4, mesh size (6 ± 0.5) mm of sample grinding machine involved by the inventive method, cutter head rotating speed are that (850 ± 5) turn/min, blade space is (0.178 ± 0.076) mm.
Claims (1)
1. utilize SPC to carry out a method for measuring to online Moisture Meter measurement accuracy, it is characterized in that:
To produce online Moisture Meter according to tobacco leaf upper, middle and lower 3 positions, 3 passages are set up at each position, and other grade sets up again 6 passages respectively, vertical 15 passages of building together; Or set up passage according to the trade mark, operation, and dynamic comparison is carried out to each passage;
Use SPC control technology and combine " cigarette process specification ", setting up the data processing principle of online Moisture Meter contrastive test, tendency accuracy measures rule and control flow;
Adopt fundamental error σ, σ=Y-X, Y to represent online Moisture Meter displayed value, X represents baking oven value, and the accuracy of online Moisture Meter is carried out to the statistical study of Preliminary Determination and measuring process, concrete steps are:
(1), online Moisture Meter Determination,
(1), determine Interventions Requested and the frequency, complete the sampling of contrastive test, test, data inputting;
(2), sampling, detection method: 20-50cm place sampling behind Moisture Meter probe position, when fluctuation in online Moisture Meter displayed value 10s is less than 0.2%, top layer material 5 times are captured continuously in regulation sample position, get 50g, and the displayed value of the online Moisture Meter of synchronous recording, record result is accurate to 2 significant digits; Good seal after air in the sample got necessary discharge in time sealing bag, and enclose label, indicate this sample online Moisture Meter display water percentage, sample sequence number, grade;
(2). per working day checks " online Moisture Meter contrastive test record " control chart, and measures control chart by online Moisture Meter accuracy mensuration criterion; Adjustment or checking are carried out to the undesirable operation Moisture Meter passage of mensuration, and adjustment, the result are fed back relevant departments in time;
(3). detect moisture by the sampling batch of regulation and test item sampling Oven Method, online for each operation Moisture Meter displayed value Y and baking oven measurement result X is compared, draws fundamental error σ; By " moisture comparison data " hurdle in all detection data inputting data actuation, data actuation generates automatically " online Moisture Meter contrastive test tables of data ";
(4). data acquisition generates " online Moisture Meter contrastive test Data Control figure " automatically according to detecting data, and comparison personnel and workshop gauger measure criterion according to online Moisture Meter detection accuracy and carry out evaluation of measuring to control chart;
Mensuration meets the requirements and illustrates that online Moisture Meter is controlled; Measure undesirable, then carry out adjustment by workshop gauger, after adjustment by comparison personnel again sub-sampling compare, by that analogy;
It is as follows that described online Moisture Meter accuracy measures criterion:
Redrying production line: same operation, same Moisture Meter passage fundamental error σ occur any one in following principle, measure online Moisture Meter detection accuracy and do not meet technological requirement;
Tobacco section: control limit ± 1.50%
Criterion one: continuous 2 points drop on ± 1.00% outside;
Criterion two: have in continuous 5 points 4 points drop on ± 0.50% outside;
Blade sections: control limit ± 1.00%
Criterion one: 1 point drops on ± 1.00% outside;
Criterion two: continuous 2 points drop on ± 0.66% outside;
Criterion three: have in continuous 5 points 4 points drop on ± 0.33% outside,
Primary processing line: same operation, same Moisture Meter passage fundamental error σ occur any one in following principle, measure online Moisture Meter detection accuracy and do not meet technological requirement;
Blade sections: σ=0.33%
Criterion one: continuous 2 points drop on ± 2 σ outside;
Criterion two: have in continuous 5 points 4 points drop on ± 1 σ outside;
Cut tobacco section containing stem section: σ=0.2%
Criterion one: 1 point drops on ± 3 σ outside;
Criterion two: continuous 2 points drop on ± 2 σ outside;
Criterion three: have in continuous 5 points 4 points drop on ± 1 σ outside.
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| CN105067560B (en) * | 2015-07-27 | 2017-11-28 | 浙江中烟工业有限责任公司 | A kind of automatic contrast moisture content in leaves Measurement channel adjusting method |
| CN105628705B (en) * | 2015-12-22 | 2019-01-11 | 河南中烟工业有限责任公司 | A kind of loosening and gaining moisture process Moisture Meter deviation automatic detection warning and method for correcting error |
| CN106370554A (en) * | 2016-12-09 | 2017-02-01 | 重庆中烟工业有限责任公司 | Tobacco-moisture-content detecting and online-moisture-meter monitoring method |
| CN108037745A (en) * | 2017-12-06 | 2018-05-15 | 福建摩尔软件有限公司 | A kind of inter-linked controlling method and system based on SPC |
| CN110567836B (en) * | 2019-08-06 | 2022-07-26 | 河南中烟工业有限责任公司 | Method and system for rapidly checking and determining tobacco shred online moisture meter |
| CN110531033B (en) * | 2019-09-27 | 2022-11-18 | 龙岩烟草工业有限责任公司 | Method and device for monitoring online moisture measurement accuracy and moisture measurement system |
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| CN102885392B (en) * | 2012-09-11 | 2016-01-20 | 张家口卷烟厂有限责任公司 | A kind of technology for making tobacco threds Quality Monitoring Control System and method |
| CN103278222B (en) * | 2013-06-20 | 2016-09-14 | 重庆烟草工业有限责任公司重庆卷烟厂 | A kind of tobacco charging, perfuming effusion meter measuring accuracy on-line monitoring method |
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