CN102524930B - Method for improving blade feeding precision - Google Patents
Method for improving blade feeding precision Download PDFInfo
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- CN102524930B CN102524930B CN201010619460.4A CN201010619460A CN102524930B CN 102524930 B CN102524930 B CN 102524930B CN 201010619460 A CN201010619460 A CN 201010619460A CN 102524930 B CN102524930 B CN 102524930B
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- China
- Prior art keywords
- feeding
- charge pump
- blade
- control system
- electronic scale
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000001186 cumulative effect Effects 0.000 claims abstract description 16
- 238000004364 calculation method Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 description 9
- 241000208125 Nicotiana Species 0.000 description 7
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 7
- 239000002994 raw material Substances 0.000 description 5
- 239000000796 flavoring agent Substances 0.000 description 4
- 235000019634 flavors Nutrition 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 235000013599 spices Nutrition 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 235000019506 cigar Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
The invention discloses a method for improving blade feeding precision, which comprises the following steps: (1) The feeding machine outputs a blade, and the electronic scale starts to measure the instantaneous flow L (x) and the accumulated quantity G of the blade; (2) When the cumulative amount G of the blades reaches a preset value, the control system starts a charging pump, and the flowmeter starts recording; (3) The control system receives the actual accumulated vane quantity Gi recorded by the electronic scale, the accumulated feeding quantity mi of the feeding pump, calculates the feeding precision,(i=1, 2,3 … … n), wherein δi is the feeding precision, k is the feeding proportion, and the theoretical accumulated feeding quantity i of the feeding pump corresponding to the accumulated quantity Gi of the actual blades of the feeding machine is obtained; (4) calculating a compensation formula, zi=mi-Mi; (5) determining a compensation coefficient Ki according to the values of δi and Zi; (6) Calculating theoretical instantaneous feeding quantity L (y) of the feeding pump,
Description
Technical field
The present invention relates to tobacco and manufacture field, relate to a kind of method improving accuracy of leaf feeding specifically.
Background technology
The feed way general analysis that current most cigar mill adopts is two kinds: one is fed in raw material on the spot, one is that flavoring and casing is focused on a local composition Flavor Kitchen, by pipeline essence, spices is transported to perfuming, casing drum carries out flavoring and casing, the preparation of essence, spices is completed at Flavor Kitchen, again required control signal is all collected Flavor Kitchen PLC, by the PLC of Flavor Kitchen, centralized control is carried out to on-the-spot perfuming, charger.In theory charge pump can according to theory feed in raw material flow apply feed liquid, but feed in raw material in process in reality, tobacco leaf instantaneous delivery can constantly change, charge pump motor inverter is followed the tracks of can due to signal lag and inertia effect when this changes, actual feeding quantity is caused to be not equal to theoretical feeding quantity, just in the fluctuation up and down of theoretical feeding quantity, the fluctuation of tobacco leaf supplied materials is larger, and charging precision can be lower.If do not carry out conservative control to this fluctuation, the instantaneous charging precision in so whole reinforced process and batch resultnat accuracy just may exceed the scope of technological requirement.
For now, reinforced exist following several respects:
(1) overall reinforced positive error proportion is large, does not meet rule;
(2) error is higher;
(3) can find out, at first about 15 minutes of each batch, always to there is the situation that feed liquid is added by analyzing reinforced chart.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of method improving accuracy of leaf feeding, overcomes charge pump and to feed in raw material the time delay of signal, make actual feeding quantity suitable with theoretical feeding quantity.
The present invention is by the following technical solutions:
Improve a method for accuracy of leaf feeding, comprise
Charge pump;
Flowmeter, described cmf record charge pump adds up feeding quantity m;
Feeding machine;
Electronic scale, described electronic scale record feeding machine exports instantaneous delivery L (x) and the cumulative amount G of blade;
And control system, described control system receives the information of flowmeter, electronic scale, and provides command adapted thereto to charge pump and feeding machine; Comprise the following steps:
(1) feeding machine exports blade, and electronic scale starts to measure blade instantaneous delivery L (x) and cumulative amount G;
(2) after blade cumulative amount G reaches preset value, control system starts charge pump, and flowmeter starts record;
(3) control system receives the actual blade cumulative amount G of electronic scale record
i, the accumulative feeding quantity m of charge pump
i, carry out charging precision calculating,
wherein δ
ifor charging precision, k
For feed ratio, and draw at feeding machine actual blade cumulative amount G
ithe accumulative feeding quantity M of lower corresponding charge pump theory
i;
(4) calculation compensation formula, Z
i=M
i-m
i;
(5) according to δ
i, Z
ivalue, determine penalty coefficient K
i;
(6) the theoretical instantaneous feeding quantity L (y) of charge pump is calculated, L
(yi)=k × L
(xi)× K
i(i=1,2,3......n), wherein
K is feed ratio;
(7) control system is to the instruction of the instantaneous feeding quantity L (y) of charge pump input hypothesis.
Further, in step (5), when δ≤99.8%, and during Z > 2.5, K=1.03; When δ≤99.8%, and during Z≤2.5, K=1; As 99.8% < δ < 100.2%, K=1; When δ >=1002%, K=0.9.
The present invention is by adding penalty coefficient in reinforced computing formula, the error produced in reinforced process is revised in time, thus ensure that whole batch of error is in the accuracy rating of technological requirement, adds penalty coefficient conditions for use simultaneously, charging precision can be made to improve further with controlled.
Embodiment
Improve a method for accuracy of leaf feeding, comprise charge pump; Flowmeter, described cmf record charge pump adds up feeding quantity m; Feeding machine; Electronic scale, described electronic scale record feeding machine exports instantaneous delivery L (x) and the cumulative amount G of blade; And control system, described control system receives the information of flowmeter, electronic scale, and provides command adapted thereto to charge pump and feeding machine; It is characterized in that comprising the following steps:
(1) feeding machine exports blade, and electronic scale starts to measure blade instantaneous delivery L (x) (unit: Kg/h) and cumulative amount G
(unit: Kg);
(2) after blade cumulative amount G reaches preset value, control system starts charge pump, and flowmeter starts record;
(3) control system receives the actual blade cumulative amount G of electronic scale record
i, the accumulative feeding quantity m of charge pump
i(unit: Kg), carries out charging precision calculating,
wherein δ
i
For charging precision (error), k is the feed ratio of technological requirement, and draws at feeding machine actual blade cumulative amount G
ithe accumulative feeding quantity M of lower corresponding charge pump theory
i(unit: Kg);
(4) calculation compensation formula, Z
i=M
i-m
i;
(5) according to δ
i, Z
ivalue, determine penalty coefficient K
i;
(6) the theoretical instantaneous feeding quantity L (y) (unit: Kg/h) of charge pump is calculated, L
(yi)=k × L
(xi)× K
i(i=1,2,3......n), wherein k is feed ratio;
(7) control system is to the instruction of the instantaneous feeding quantity L (y) of charge pump input hypothesis.
Wherein in step (5), the value of K has three, when δ≤99.8%, and during Z > 2.5, and K=1.03; When δ≤99.8%, and during Z≤2.5, K=1; As 99.8% < δ < 100.2%, K=1; When δ >=1002%, K=0.9.Z value is an empirical value, being the value by constantly adjusting Z, then analyzing the result obtained, finally fixed on 2.5.
Preset value is the definite value first set in the controls, just starts to add feed liquid after feeding machine accumulates a certain amount of blade.
Former reinforced formula is L
(y)=k × L
(x)(L (x) is blade instantaneous delivery, L (y) is theoretical instantaneous reinforced flow, k is the feed ratio of technological requirement), what this formula drew is the feed liquid flow that theoretical instantaneous needs add, ideally, actual reinforced flow follows the tracks of this value to equal this theoretical delivery value to the frequency adjusting charge pump to make the feed liquid passed through in mass flowmeter.Because the blade instantaneous delivery that feeds in raw material is the value of a continuous change, therefore theoretical reinforced value constantly changes, and in actual production process, instantaneous actual feeding quantity is always in the fluctuation up and down of theoretical feeding quantity value.This will produce a very large error, batch resultnat accuracy also just can not be guaranteed.
The interpolation of tobacco leaf (blade) feed liquid adds tobacco leaf by charge pump through mass flowmeter and nozzle, the present invention determines theoretical instantaneous feed liquid flow, charge pump changes the frequency of charge pump motor according to the size of this theoretical instantaneous feed liquid flow, to make the actual feed liquid be applied on tobacco leaf equal with the reduction of feed volume that should be applied on tobacco leaf in theory.
The present invention is by adding penalty coefficient in reinforced computing formula, the error produced in reinforced process is revised in time, thus ensure that whole batch of error is in the accuracy rating of technological requirement, add penalty coefficient conditions for use simultaneously, charging precision can be made to improve further and controlled (by changing Z value, can charging precision be controlled).
Claims (1)
1. improve a method for accuracy of leaf feeding, comprise
Charge pump;
Flowmeter, described cmf record charge pump adds up feeding quantity m;
Feeding machine;
Electronic scale, described electronic scale record feeding machine exports the instantaneous delivery L of blade
(x)with cumulative amount G;
And control system, described control system receives the information of flowmeter, electronic scale, and provides command adapted thereto to charge pump and feeding machine; It is characterized in that comprising the following steps:
(1) feeding machine exports blade, and electronic scale starts to measure blade instantaneous delivery L
(x)with cumulative amount G;
(2) after blade cumulative amount G reaches preset value, control system starts charge pump, and flowmeter starts record;
(3) control system receives the actual blade cumulative amount G of electronic scale record
i, the accumulative feeding quantity mi of charge pump, carries out charging precision calculating,
(i=1,2,3 ... n), wherein δ
ifor charging precision, k is feed ratio, and draws at feeding machine actual blade cumulative amount G
ithe accumulative feeding quantity of lower corresponding charge pump theory;
(4) calculation compensation formula, Z
i=M
i-m
i;
(5) according to δ
i, Z
ivalue, determine penalty coefficient K
i, when δ≤99.8%, and during Z > 2.5, Κ=1.03; When δ≤99.8%, and during Z≤2.5, Κ=1; As 99.8% < δ < 100.2%, Κ=1; When δ>=100.2%, Κ=0.9;
(6) the theoretical instantaneous feeding quantity L of charge pump is calculated
(y), L
(yi)=k × L
(xi)× K
i(i=1,2,3 ... n), wherein k is feed ratio;
(7) control system is to the instantaneous feeding quantity L of charge pump input hypothesis
(y)instruction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010619460.4A CN102524930B (en) | 2010-12-31 | 2010-12-31 | Method for improving blade feeding precision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010619460.4A CN102524930B (en) | 2010-12-31 | 2010-12-31 | Method for improving blade feeding precision |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102524930A CN102524930A (en) | 2012-07-04 |
| CN102524930B true CN102524930B (en) | 2015-03-25 |
Family
ID=46333972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010619460.4A Active CN102524930B (en) | 2010-12-31 | 2010-12-31 | Method for improving blade feeding precision |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102524930B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103584271B (en) * | 2013-11-21 | 2015-05-27 | 山东中烟工业有限责任公司 | Method preventing abnormal charging of blade charging machine |
| CN104055214B (en) * | 2014-06-26 | 2016-06-15 | 厦门烟草工业有限责任公司 | Online charging process and device and expanded cut tobacco production system |
| CN105559130A (en) * | 2015-12-30 | 2016-05-11 | 山东中烟工业有限责任公司 | Feeding system and method for tobaccos with different incoming moistures |
| CN107510089B (en) * | 2017-08-24 | 2019-08-13 | 河北中烟工业有限责任公司 | The method of accuracy of leaf feeding is improved in a kind of production of tobacco cutting |
| CN108720068B (en) * | 2018-06-05 | 2021-06-11 | 北京新长征天高智机科技有限公司 | Blade feeding control method |
| CN110150715B (en) * | 2019-05-05 | 2022-11-22 | 贵州中烟工业有限责任公司 | Method for controlling excess sugar |
| CN114877977A (en) * | 2022-05-06 | 2022-08-09 | 佛山市金银河智能装备股份有限公司 | Material metering control system and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5711320A (en) * | 1993-04-20 | 1998-01-27 | Comas-Costruzional Machine Speciali-S.P.A. | Process for flavoring shredded tobacco and apparatus for implementing the process |
| CN1262907A (en) * | 1999-02-10 | 2000-08-16 | 中国科学院成都计算机应用研究所 | Control method of flavour addition in material and its application |
| CN1785074A (en) * | 2004-12-06 | 2006-06-14 | 云南昆船电子设备有限公司 | Flavoring/feeding method for tobacco leaf shred line |
-
2010
- 2010-12-31 CN CN201010619460.4A patent/CN102524930B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5711320A (en) * | 1993-04-20 | 1998-01-27 | Comas-Costruzional Machine Speciali-S.P.A. | Process for flavoring shredded tobacco and apparatus for implementing the process |
| CN1262907A (en) * | 1999-02-10 | 2000-08-16 | 中国科学院成都计算机应用研究所 | Control method of flavour addition in material and its application |
| CN1785074A (en) * | 2004-12-06 | 2006-06-14 | 云南昆船电子设备有限公司 | Flavoring/feeding method for tobacco leaf shred line |
Non-Patent Citations (2)
| Title |
|---|
| 于建军.加料（香）精度.《卷烟工艺学》.中国农业出版社,2003,365-366. * |
| 卷烟厂制丝线加香控制系统的设计;任宏程;《设备与仪器》;20080430(第4期);参见第23页1节至4节 * |
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| Publication number | Publication date |
|---|---|
| CN102524930A (en) | 2012-07-04 |
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