CN110477435A - Tobacco charging system and its control method - Google Patents
Tobacco charging system and its control method Download PDFInfo
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- CN110477435A CN110477435A CN201910667330.9A CN201910667330A CN110477435A CN 110477435 A CN110477435 A CN 110477435A CN 201910667330 A CN201910667330 A CN 201910667330A CN 110477435 A CN110477435 A CN 110477435A
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- valve
- storage tank
- charge pump
- nozzle
- tobacco
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B3/00—Preparing tobacco in the factory
- A24B3/12—Steaming, curing, or flavouring tobacco
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/06—Control of flow characterised by the use of electric means
- G05D7/0617—Control of flow characterised by the use of electric means specially adapted for fluid materials
- G05D7/0629—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means
- G05D7/0635—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means by action on throttling means
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Manufacturing Of Cigar And Cigarette Tobacco (AREA)
Abstract
The present invention relates to tobacco leaf production technical field, a kind of tobacco charging system and its control method are provided.Wherein tobacco charging system includes charger and weighing belt, weighing belt and charger interval are arranged, charger includes storage tank, charging valve, nozzle and charge pump, storage tank is connected through charge pump with nozzle, charging valve is arranged on the connecting pipeline between charge pump and nozzle, it further include the control device for being preset with pre-filled setting value, control device carries out pre-filled according to the revolving speed of pre-filled set value calculation charge pump, weighing belt is T0 at the time of starting to collect data on flows, control device according to the revolving speed of the data on flows control charge pump of weighing belt acquisition and switches to feeding stage in moment T0+T after moment T0, wherein, duration T=T1-T2, T1 is transported to the time used in nozzle lower section from weighing belt for pipe tobacco, T2 is transported to duration used in nozzle from charging valve for spice liquid.Tobacco charging system provided by the invention improves Flavouring Precision by the control of control device.
Description
Technical field
The present invention relates to tobacco leaf production technical field more particularly to a kind of tobacco charging systems and its control method.
Background technique
In tobacco cutting processing technology, for the suction taste for improving cigarette, will feed to tobacco leaf/pipe tobacco (perfume) technique
Processing.And it is more demanding to the precision controlling of charging (perfume), usual error will control within 1%.
Currently used method is one electronic scale of installation before charging system, for detecting the flow of tobacco, so
Be multiplied according to the charging of setting (perfume) ratio with the flow of tobacco charging (perfume) flow set afterwards, charging (perfume)
Actual flow is detected by flowmeter, and the motor speed of charge pump is adjusted by PID control, so that it is guaranteed that practical charging (perfume) stream
Amount with setting charging (perfume) amount unanimously, make the flow of feed liquid with electronic scale measure mass flow number and change, thus
Reach the automatic control of quantifying feed in proportion.
But in current circuit design, due to the structure of equipment and pipe arrangement, meeting between charging valve and nozzle
There is a distance, so that the feed liquid generated according to electronic scale flow signal actually but should still remain in when being added in material
In pipeline, the charging precision of material is influenced.In addition, in charging valve handoff procedure, the charging flow of setting with according to material electricity
The sub- calculated reduction of feed volume of scale may differ by it is larger, thus needs when jumping whole system to the flavoring stage from pre-filling stage
It just can enter tracking mode by multiple oscillation, equally influence charging precision.
Summary of the invention
(1) technical problems to be solved
An object of the present invention is to provide a kind of tobacco charging system, to solve existing tobacco charging system charging
The low problem of precision.
The second object of the present invention is to provide a kind of control method of tobacco charging system, add to solve existing tobacco
Expect system control method because control precision it is low caused by feed effect difference problem.
(2) summary of the invention
One of in order to solve the above-mentioned technical problem, the present invention provides a kind of tobacco charging system, including charger and belt
Scale, the weighing belt are used to weigh the flow of pipe tobacco, and the weighing belt and the charger interval are arranged, and the charger includes
Storage tank, charging valve, nozzle and charge pump, the storage tank are connected through the charge pump with the nozzle, and the charging valve is set
It sets on the connecting pipeline between the charge pump and the nozzle, further includes the control device for being preset with pre-filled setting value,
The revolving speed of control device charge pump according to the pre-filled set value calculation is pre-filled to carry out, and the weighing belt is opened
Beginning collects the stream acquired after the moment T0 according to the weighing belt at the time of data on flows for T0, the control device
Amount data control the revolving speed of the charge pump and switch to feeding stage in moment T0+T, wherein the duration T=T1-T2, T1
It is transported to the time used in the nozzle lower section from the weighing belt for pipe tobacco, T2 is transported to institute from the charging valve for spice liquid
State duration used in nozzle.
In order to solve the above-mentioned technical problem two, the present invention provides a kind of control method of tobacco charging system, including such as
Lower step:
Step S1, charging valve are closed, and control device is according to the revolving speed of pre-filled set value calculation charge pump, in storage tank
Feed liquid is back to the storage tank after discharge port discharge；
Step S2, the control device, which receives the data on flows of weighing belt acquisition and calculated according to the data on flows, to be added
Perfume amount, the control device controls the revolving speed of the charge pump according to calculated flavoring amount, at this point, the charging valve still in
Closed state；
Step S3, the control device, by duration T, open institute after the data on flows for receiving the weighing belt acquisition
Charging valve is stated, flavoring state is switched to.
(3) beneficial effect
Tobacco charging system provided by the invention, control device feed in pre-filling stage according to pre-filled preset value calculation
The operating of the revolving speed control charge pump of pump, at this point, feed liquid self-loopa in charger, is discharged without feed liquid；It is acquired to weighing belt
When to flow signal, control device, which calculates the flow pipe tobacco according to the data on flows received, needs reduction of feed volume to be added and real-time
It is scaled the revolving speed of charge pump, although pipe tobacco has begun transport at this time, due to there is a spacing between weighing belt and charger
From still in pre-filling stage, the flow signal that only pre-filled flavoring amount has been adjusted to weighing belt acquisition changes charger
The reduction of feed volume of calculating；When pipe tobacco to be fed is run to the lower section of nozzle, feed liquid is run to nozzle just, to avoid spraying
Influence of the distance to charging precision between mouth and charging valve, while charge pump has adjusted to corresponding before pipe tobacco arrival and has turned
Speed avoids causing flow step to jump big shadow because revolving speed significantly adjusts in traditional pre-filling stage and flavoring stage handoff procedure
Ring Flavouring Precision.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the measuring principle figure of electromagnetic flowmeter；
Fig. 2 is the structural schematic diagram of tobacco charging of embodiment of the present invention system；
Fig. 3 is the pipeline structure figure of charger shown in Fig. 2.
In figure: 1, measurement pipe；2, electrode；10, weighing belt；20, charger；21, storage tank；211, the first storage tank；
212, the second storage tank；22, charging valve；23, nozzle；24, charge pump；25, electromagnetic flowmeter；26, return valve；30, shake slot；
40, transport device；50, elevator.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Before introducing tobacco charging system of the embodiment of the present invention, influence of the bubble to metrology devices is first introduced.In tobacco
Manufacturing often measures fragrance with electromagnetic flowmeter, can see that the inner wall of measuring pipe of electromagnetic flow meter 1 is inlayed from Fig. 1
Induced electromotive force, induction electric will be generated on two electrodes 2 of sensor when liquid flows in pipeline there are two electrode 2
Gesture carries out exchange amplification through high input impedance amplifier first, amplifies subsequently into direct current differential amplifier, its difference is amplified
After be sent into voltage conversion circuit.Finally, voltage signal to be converted into the DC current signal and pulse frequency of unified standard, and make
For output signal, to be indicated, recorded, calculated and to be adjusted.
When fragrance passes through measurement zone with certain flow rate v, electromagnetic flowmeter just uses constant square wave current dual-frequency excitation
Method measurement zone establish a uniform magnetic flux density be B magnetic field, then sensor can sense one perpendicular to
The electromotive force e of electromagnetism field direction and flow direction.Work of the size and conductor of electromotive force in magnetic field is transported perpendicular to magnetic direction
Dynamic speed is directly proportional, and the length L of cutting magnetic line is the distance between two electrodes 2, and the fluid column for being equivalent to conductive fluid is straight
Diameter, the i.e. internal diameter of measurement pipe 1 are D, and the flow velocity of liquid is v, to obtain formula e=B*D*v；Wherein, e is that conductor both ends are inducted
Electromotive force (V), B are the magnetic induction intensity (T) in magnetic field；D is measuring pipe of electromagnetic flow meter internal diameter (mm)；V is flow rate of liquid (m/
s)。
Conductivity σ meets formula r11/ σ d of ≈, wherein r1For sensor internal resistance, σ is the conductivity (S/M) of measured matter, d
For the diameter (M) of electrode 2.As it can be seen that the conductivity for being measured medium is different, then the internal resistance of sensor is different.In the converter, always
It is hoped that there will be very high input internal resistances, to improve the stability of measurement.The input impedance of usual converter is interior much larger than sensor
The relationship of resistance, sensor internal resistance and converter input impedance meets formula est=ei·rst/(rst+r1), wherein estFor conversion
Device inputs electromotive force；rstFor converter input impedance；r1For sensor internal resistance.To guarantee measurement accuracy, even if est≈ei
It must make rST》r1, therefore the input impedance of converter should be improved as far as possible, increase rst, expand the measurement model of dielectric conductance rate
It encloses, to expand the use scope of electromagnetic flowmeter.
Therefore conductivity is excessively high, such as more than 0.9S/m~10S/m, will reduce flow signal, and change indicated value,
I.e. flow indication is less than actual flow；Conductivity is too low, and in order to keep measurement accuracy, the input impedance of converter is required more
Greatly, result can make sensor internal resistance and signal voltage decay, and so that signal voltage is generated " phase shift " reduces measurement accuracy.In electricity
The size of the induced electromotive force and exciting current that generate on two electrodes 2 of magnetic flowmeter and the mean flow rate of measured medium are at just
Than also directly proportional to magnetic flux density.Measured medium conductivity " σ " it is big or it is small measurement will be had an impact, conductivity exists in other words
Variation in different time periods generates different influences to instrument to detection flows signal.
In process of production due to batch to be replaced, fragrance will also be changed to the fragrance of next batch, operator therewith
The remaining aroma recovery in pipeline and pipeline is washed with water, is finally also blown down with compressed air remaining in clean pipeline
Ejected wash water, then the liquid perfume of next batch is flowed into flavoring pipeline by storage tank 21, the liquid at this moment flowed in pipeline
Fragrance can squeeze the air of lower in pipeline, but the salient point of horizontal pipeline, in the gear cavity upper half of gear pump or fragrance mistake
Filter highest point also has partial air presence, can make liquid perfume and residual by gear engagement when gear pump runs at high speed
Air mixing, the sparkling liquid of these liquid just forms irregular suddenly big or suddenly small in the measurement pipe 1 for flowing through electromagnetic flowmeter 25
Measuring signal because the air mixed in liquid be equivalent to be mixed in conductive liquid it is completely nonconducting one by one
The particle of particulate matter, these insulation changes the conductivity of neat liquid fragrance.In measuring circuit, the little particle of insulation influences
The detection of sensor signal, biggish error amount will be generated by calculating direct current signal, directly affect the operating of 24 motor of charge pump
The calculating of frequency, measurement error caused by conductivity variations is also that can not ignore.
The gas-liquid of flowing will be achieved the purpose that cool down, first have to separate then exclusion in a gas from liquid,
Pre-filled, to retain in discharge line air should be carried out before the flavoring stage.
It is illustrated in figure 2 the structural schematic diagram of tobacco charging system of the embodiment of the present invention comprising weighing belt 10 and charging
Machine 20, wherein weighing belt 10 is used to weigh the flow of pipe tobacco to be fed, and setting is spaced between weighing belt 10 and charger 20,
After weighing belt 10 collects the flow signal of pipe tobacco, even needs certain time of delivery that can be transported to charger 20 and added
Material operation.Wherein, as shown in figure 3, charger 20 includes storage tank 21, charging valve 22, nozzle 23 and charge pump 24, storage tank 21
Discharge port be connected with nozzle 23, charge pump 24 is arranged in the connecting pipe between storage tank 21 and nozzle 23, charging valve 22
It is arranged between charge pump 24 and nozzle 23.In order to improve charging precision, the tobacco charging system in the embodiment of the present invention is also wrapped
The control device for being preset with pre-filled setting value is included, before the flavoring stage, the gas in pre-filled discharge line is first carried out, keeps away
Exempt from gases affect, at this point, revolving speed of the control device according to pre-filled set value calculation charge pump 24.Note weighing belt 10 starts to acquire
It is T0 at the time of to data on flows, control device controls charge pump according to the data on flows that weighing belt 10 acquires since moment T0
24 revolving speed, and feeding stage is switched at the T0+T moment, wherein duration T=T1-T2, T1 are that pipe tobacco is transported from weighing belt 10
To the time used in 23 lower section of nozzle, T2 is transported to duration used in nozzle 23 from charging valve 22 for spice liquid.
Control device in the embodiment of the present invention, in pre-filling stage according to the pre-filled flavoring of pre-filled preset value calculation
Amount, and then the operating of 24 revolving speed of the charge pump control charge pump 24 conversed according to pre-filled flavoring amount.At this point, feed liquid is feeding
Self-loopa in machine 20 is discharged without feed liquid.When weighing belt 10 collects flow signal, show that material to be fed has begun
Conveying, control device, which calculates the flow pipe tobacco according to the data on flows received, needs reduction of feed volume to be added, and is scaled in real time
The revolving speed of charge pump 24, although pipe tobacco has begun transport at this time, due to there is a spacing between weighing belt 10 and charger 20
From charger 20 is still in pre-filling stage, and only pre-filled flavoring amount has been adjusted to the flow letter of the acquisition of weighing belt 10
Number reduction of feed volume conversed.It is T1 that pipe tobacco, which is transported to the time used in the lower section of nozzle 23 from weighing belt 10, and spice liquid is from charging valve
22 a length of T2 when being transported to used in nozzle 23, the revolving speed fortune that charge pump 24 is conversed in the data on flows acquired with weighing belt 10
After row T=T1-T2 duration, charging valve 22 is opened, into the flavoring stage.In this way, pipe tobacco to be fed is run to nozzle 23
Fang Shi, feed liquid are run just to nozzle 23, so that influence of the distance to charging precision between nozzle 23 and charging valve 22 is avoided,
Charge pump 24 has adjusted before pipe tobacco arrival to corresponding revolving speed simultaneously, and traditional pre-filling stage and flavoring stage is avoided to switch
Cause the jump of flow step is big to influence Flavouring Precision because revolving speed significantly adjusts in the process.
Due to having a turn-off between weighing belt 10 and nozzle 23 from the flow that therefore, it is necessary to detect to weighing belt 10
Signal delay for a period of time, can just make charging flow match with mass flow, this section of delay operation uses storehouse control technology
It realizes, the flow signal of this period first is stored, overflows a data every time according to the sequencing of storage.
Specifically, which further includes electromagnetic flowmeter 25, and electromagnetic flowmeter 25 is mounted on charge pump 24 and charging
Between valve 22, for measuring the reduction of feed volume of the discharge of storage tank 21.By control system provided in an embodiment of the present invention, pre-filled rank
The skip signal very little that electromagnetic flowmeter 25 detects in section and flavoring stage handoff procedure, thus keep Flavouring Precision variation small,
Ensure that Flavouring Precision is stablized 1%.
Wherein, it drives the air in pipeline out of for convenience, avoids the measurement effect of aeration electromagnetic flowmeter 25, feed
In machine 20, it is arranged with return line on the connecting pipeline between charge pump 24 and nozzle 23, the return line and storage tank 21
It is connected, return valve 26 is installed on return line.In pre-filling stage, return valve 26 is in the open state, at charging valve 22
In closed state, the feed liquid that charge pump 24 is pumped out out of storage tank 21 is back in storage tank 21 along return line, in storage tank
In 21, gas floats, and feed liquid is sunk, to realize gas-liquid separation.
Specifically, there are two storage tanks 21, respectively the first storage tank 211 and the second storage tank 212, return valve 26 and plus
Expect that valve 22 is two-position three-way valve.Wherein, the discharge port of the first storage tank 211 and the discharge port of the second storage tank 212 lead to respectively
It crosses control valve to be connected with the import of charge pump 24, the inlet communication of the outlet of charge pump 24 and charging valve 22, the of charging valve 22
One outlet is connected to nozzle 23, the second outlet of charging valve 22 and the inlet communication of return valve 26, the first outlet of return valve 26
It is connected with the first storage tank 211, the second outlet of return valve 26 is connected with the second storage tank 212.By two two-position three-way valves
Service aisle is selected, when carrying out pre-filled, feed liquid flows to reflux line at charging valve 22, flows to the first storage through return valve 26
Batch can 211 or the second storage tank 212.When carrying out flavoring operation, feed liquid flows to nozzle 23 at charging valve 22, carries out to pipe tobacco
Flavoring.It should be noted that return valve 26 and charging valve 22 may be one-way valve when the quantity more than one of storage tank 21,
Feed liquid trend is adjusted by the setting of multiple one-way valves.In use, the on state of 26 first outlet of return valve and the
The switch state for the control valve installed on one storage tank 211 is consistent, and when being both on state, feed liquid is through first
Storage tank 211, charge pump 24, return valve 26 return to the first storage tank 211, and it is pre-filled to realize that internal circulation carries out.Likewise, returning
The switch state for flowing the control valve installed in the on state and the second storage tank 212 of the second outlet of valve 26 is consistent, with
Exempt from that fragrance mixing accident occurs.
Wherein, charging valve 22 is positioned close to the position of nozzle 23, thus keep feed liquid as short as possible to the distance of nozzle 23,
At this point, feed liquid reaches nozzle after control device adjusts the revolving speed of charge pump 24 according to the data on flows that weighing belt 10 acquires
It can be quickly sprayed on pipe tobacco at 23, so that it is secondary to avoid in pre-filled and flavoring operation handoff procedure feed liquid from generating in pipeline
Pressure fluctuations Flavouring Precision.
Specifically, the top of flavoring cylinder is arranged in nozzle 23, and the pipe tobacco that weighing belt 10 transports enters flavoring through over vibration slot 30
In cylinder.Pipe tobacco after 20 flavoring of charger is transported to next station by transport device 40.Wherein, it falls on weighing belt 10
Pipe tobacco provided by elevator 50.
The embodiment of the invention also provides a kind of control methods of above-mentioned tobacco charging system comprising following steps:
Step S1, charging valve 22 are closed, revolving speed of the control device according to pre-filled set value calculation charge pump 24, storage tank
Feed liquid in 21 is back to the storage tank 21 after discharge port discharge；The process makes in pipeline for the air in discharge line
Full of feed liquid, air is brought into storage tank 21 by the flowing of feed liquid, and gas floats in storage tank 21, and liquid falls, and realizes
Gas-liquid separation.
Step S2, control device receive the data on flows of the acquisition of weighing belt 10 and calculate flavoring amount according to data on flows,
Control device controls the revolving speed of charge pump 24 according to calculated flavoring amount, at this point, charging valve 22 is still in closed state；To
The revolving speed of presetting charge pump 24 before switching to the flavoring stage avoids the step generated in stage handoff procedure jump from influencing to add
Essence degree.
Step S3, control device, by duration T, open charging valve after the data on flows for receiving the acquisition of weighing belt 10
22, switch to flavoring state.During entire flavoring, the data on flows control that control device is acquired according to weighing belt 10 feeds
The revolving speed of pump 24, it is ensured that flavoring amount matches with corresponding mass flow, it is ensured that Flavouring Precision is stablized within 1%.
The apparatus embodiments described above are merely exemplary, wherein described, unit can as illustrated by the separation member
It is physically separated with being or may not be, component shown as a unit may or may not be physics list
Member, it can it is in one place, or may be distributed over multiple network units.It can be selected according to the actual needs
In some or all of the modules achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying creativeness
Labour in the case where, it can understand and implement.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (9)
1. a kind of tobacco charging system, including charger and weighing belt, the weighing belt is used to weigh the flow of pipe tobacco, the skin
Belt scale and the charger interval are arranged, and the charger includes storage tank, charging valve, nozzle and charge pump, the storage tank
It is connected through the charge pump with the nozzle, the connecting pipeline between the charge pump and the nozzle is arranged in the charging valve
On, which is characterized in that it further include the control device for being preset with pre-filled setting value, the control device pre-filled is set according to described
The revolving speed of charge pump described in setting control is pre-filled to carry out, and the weighing belt is T0 at the time of starting to collect data on flows,
The control device controls the revolving speed of the charge pump after the moment T0 according to the data on flows that the weighing belt acquires
And feeding stage is switched in moment T0+T, wherein the duration T=T1-T2, T1 are transported to institute from the weighing belt for pipe tobacco
Time used in stating below nozzle, T2 are transported to duration used in the nozzle from the charging valve for spice liquid.
2. tobacco charging system according to claim 1, which is characterized in that the charger further includes return valve, described
The return line being connected with the storage tank is arranged on connecting pipeline, the return valve is mounted on the return line.
3. tobacco charging system according to claim 2, which is characterized in that the charging valve and the return valve are two
Position three-way valve, the storage tank include the first storage tank and the second storage tank, the discharge port of first storage tank and described the
The discharge port of two storage tanks passes through control valve respectively and is connected with the import of the charge pump, and the outlet of the charge pump adds with described
Expect the inlet communication of valve, the first outlet of the charging valve is connected to the nozzle, the second outlet of the charging valve with it is described
The inlet communication of return valve, the first outlet of the return valve are connected with first storage tank, and the second of the return valve goes out
Mouth is connected with second storage tank.
4. tobacco charging system according to claim 3, which is characterized in that the conducting shape of the first outlet of the return valve
State and the switch state of the control valve on first storage tank are consistent, the conducting of the second outlet of the return valve
State and the switch state of the control valve on second storage tank are consistent.
5. tobacco charging system according to claim 1-4, which is characterized in that the charger further includes installation
Electromagnetic flowmeter between the charging valve and the charge pump, the electromagnetic flowmeter is for measuring the storage tank discharge
Reduction of feed volume.
6. tobacco charging system according to claim 2 or 3, which is characterized in that the charging valve close to the nozzle, this
When, the duration T=T1.
7. tobacco charging system according to claim 2, which is characterized in that the control device is controlled in the moment T0+T
The charging valve is made to open and control the return valve closing.
8. tobacco charging system according to claim 3, which is characterized in that the top of flavoring cylinder is arranged in the nozzle,
The weighing belt is connected by the slot that shakes with the import of the flavoring cylinder.
9. a kind of control method of tobacco charging system, which comprises the steps of:
Step S1, charging valve are closed, feed liquid of the control device according to the revolving speed of pre-filled set value calculation charge pump, in storage tank
The storage tank is back to after discharge port discharge；
Step S2, the control device receive the data on flows of weighing belt acquisition and calculate flavoring according to the data on flows
Amount, the control device controls the revolving speed of the charge pump according to calculated flavoring amount, at this point, the charging valve is still in pass
Closed state；
Step S3, the control device, by duration T, open described add after the data on flows for receiving the weighing belt acquisition
Expect valve, switches to flavoring state.
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| CN201910667330.9A CN110477435A (en) | 2019-07-23 | 2019-07-23 | Tobacco charging system and its control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110839934A (en) * | 2019-12-10 | 2020-02-28 | 河南中烟工业有限责任公司 | Tobacco shred feeding system and tobacco shred feeding method |
| CN112520439A (en) * | 2020-11-12 | 2021-03-19 | 贵州中烟工业有限责任公司 | Storage cabinet discharge flow control method and system for silk making workshop |
| CN114894669A (en) * | 2022-05-20 | 2022-08-12 | 河南理工大学 | Rock mass fracture grouting test method for researching different grouting materials and grouting pressures |
| CN115053976A (en) * | 2022-07-04 | 2022-09-16 | 厦门烟草工业有限责任公司 | Perfuming and feeding device and method for cigarettes |
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| CN103278222A (en) * | 2013-06-20 | 2013-09-04 | 郑利锋 | Online monitoring method for measuring accuracy of tobacco feeding and flavoring flow meter |
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Address after: 717 Changyang Road, Yangpu District, Shanghai 200082 Applicant after: SHANGHAI TOBACCO GROUP Co.,Ltd. Applicant after: Shanghai Tobacco Group Beijing Cigarette Factory Co.,Ltd. Address before: 200082 No. 717, Changyang Road, Shanghai, Yangpu District Applicant before: SHANGHAI TOBACCO GROUP Co.,Ltd. Applicant before: BEIJING CIGARETTE FACTORY, SHANGHAI TOBACCO GROUP Co.,Ltd. |
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