CN111165865A - A method for improving the flow stability of tobacco leaves at the inlet of a feeder - Google Patents
A method for improving the flow stability of tobacco leaves at the inlet of a feeder Download PDFInfo
- Publication number
- CN111165865A CN111165865A CN202010170086.8A CN202010170086A CN111165865A CN 111165865 A CN111165865 A CN 111165865A CN 202010170086 A CN202010170086 A CN 202010170086A CN 111165865 A CN111165865 A CN 111165865A
- Authority
- CN
- China
- Prior art keywords
- flow
- speed
- belt
- tobacco leaves
- moisture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 241000208125 Nicotiana Species 0.000 title claims abstract description 53
- 235000002637 Nicotiana tabacum Nutrition 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000003750 conditioning effect Effects 0.000 claims description 12
- 238000005303 weighing Methods 0.000 claims description 3
- 230000004069 differentiation Effects 0.000 claims description 2
- 230000010354 integration Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 3
- 235000019504 cigarettes Nutrition 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B7/00—Cutting tobacco
- A24B7/14—Feeding or control devices for tobacco-cutting apparatus
Landscapes
- Manufacturing Of Cigar And Cigarette Tobacco (AREA)
Abstract
The invention discloses a method for improving flow stability of tobacco leaves at an inlet of a feeder, which belongs to the technical field of cigarette cut tobacco processing, and comprises the steps of controlling speeds of a feeding belt and a metering scale belt, so that the speed is reduced when the flow of the tobacco leaves is too large compared with a set speed, and is increased when the flow of the tobacco leaves is too small, wherein the speed is set according to the flow of the control scale before loosening and moisture regaining, the moisture of the tobacco leaves and the moisture after loosening and moisture regaining; according to the invention, by improving the control mode of the feeding belt and the metering scale in front of the existing feeder, the flow fluctuation is obviously reduced after the tobacco leaves flow through the feeding belt and the metering scale in the production process, and the feeding accuracy and the control stability of the feeder are improved. After the method disclosed by the invention is applied, the flow stability of the tobacco before the feeder is obviously improved, the effect of improving the feeding stability and the processing uniformity of the product is achieved, and the method has good practicability.
Description
Technical Field
The invention belongs to the technical field of cigarette shredding processing, and particularly relates to a method for improving flow stability of tobacco leaves at an inlet of a feeder.
Background
In the tobacco processing process, a metering scale is used in front of a feeder to detect the tobacco flow, the tobacco flow is closely related to the pre-loosening and moisture regaining, and the tobacco flow in front of the feeder is influenced by the running speed of a roller for loosening and moisture regaining, the arrangement of brads, the flow of a loosening and moisture regaining inlet and the like. The fluctuation of the flow of the tobacco leaves at the inlet of the feeder is too large, which may cause uneven feeding of the tobacco leaves and influence the quality of products. The stability of the flow of the tobacco leaves at the feeding inlet is improved, and the method plays an important role in improving the feeding uniformity and improving the product quality. Because the metering scale can only measure the flow of the tobacco leaves and cannot adjust the flow of the tobacco leaves, the flow fluctuation of the tobacco leaves caused by the preceding-stage equipment is transmitted to the inlet of the feeder to cause the fluctuation of the flow of the tobacco leaves entering the feeder. According to the invention, by improving the control mode of the feeding belt and the metering scale in front of the existing feeder, the flow fluctuation is obviously reduced after the tobacco leaves flow through the feeding belt and the metering scale in the production process, and the feeding accuracy and the control stability of the feeder are improved.
Disclosure of Invention
According to the invention, by improving the control mode of the feeding belt and the metering scale in front of the existing feeder, the flow fluctuation is obviously reduced after the tobacco leaves flow through the feeding belt and the metering scale in the production process, and the feeding accuracy and the control stability of the feeder are improved. After the method disclosed by the invention is applied, the flow stability of the tobacco before the feeder is obviously improved, the effect of improving the feeding stability and the processing uniformity of the product is achieved, and the method has good practicability.
In order to achieve the purpose, the invention is realized by the following technical scheme: the method for improving the flow stability of the tobacco leaves at the inlet of the feeder is to control the speeds of the feeding belt and the metering scale belt, so that the speed is reduced when the flow of the tobacco leaves is too large and is increased when the flow of the tobacco leaves is too small compared with the set speed, and the speed is set according to the flow of the control scale before loosening and moisture regaining, the moisture of the tobacco leaves and the moisture after loosening and moisture regaining.
Preferably, the method for controlling the speed of the belt comprises the following steps: step 1, additionally installing a material homogenizing roller and a driving motor on a feeding belt to convey tobacco leaves smoothly;
step 2, additionally installing a frequency converter in a motor loop of the feeding belt, wherein the frequency converter controls the rotating speed of the belt motor;
step 3, newly installing a frequency converter on a belt motor of the metering scale, and controlling the rotating speed of the belt motor by the frequency converter;
step 4, modifying the control mode of the motor speed of the metering scale into a proportional, integral and differential controller, and automatically controlling the speed of the motor according to the set flow and the actual flow;
and 5, multiplying the belt speed of the weighing scale by a coefficient of 0.5-0.7 to serve as the set speed of the feeding belt.
Preferably, the step 4 is implemented by the following steps: modifying the control mode of the motor speed of the metering scale into proportional, integral and derivative controller control, and automatically controlling the speed of the motor according to the set flow and the actual flow; the actual flow is the tobacco flow detected by the metering scale in real time;
calculating theoretical flow by the real-time flow of a control scale in front of the loosening and conditioning machine, the real-time moisture value of a moisture meter in front of the loosening and conditioning machine and the real-time moisture value of a moisture meter at the outlet of the loosening and conditioning machine, and taking the flow as the set flow of a PID (proportion integration differentiation) controller to enable a metering scale belt to run at the speed of automatically controlling and adjusting the set flow and the actual flow of the PID controller;
the set flow calculation formula is as follows: set flow = control scale 1 flow X (1-moisture meter moisture value before loosening and conditioning machine) ÷ (1-moisture meter moisture value at outlet of loosening and conditioning machine); the output of the PID controller is set with the upper and lower limits of 30-60HZ to avoid material blockage.
The invention has the beneficial effects that:
according to the invention, by improving the control mode of the feeding belt and the metering scale in front of the existing feeder, the flow fluctuation is obviously reduced after the tobacco leaves flow through the feeding belt and the metering scale in the production process, and the feeding accuracy and the control stability of the feeder are improved. After the method disclosed by the invention is applied, the flow stability of the tobacco before the feeder is obviously improved, the effect of improving the feeding stability and the processing uniformity of the product is achieved, and the method has good practicability.
Drawings
FIG. 1 is a process flow diagram of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the accompanying drawings and examples, which are not intended to limit the present invention.
Example 1
As shown in figure 1, a material homogenizing roller is newly arranged on a conveying belt 6, the vertical distance between the lowest point of a rake and the conveying belt is 100-120 mm, a motor is newly added to drive the material homogenizing roller, the control of the motor is correspondingly added, and the start and stop of the motor are synchronous with the motor of the conveying belt 6.
2. A frequency converter (1.5KW) which accords with the power of a motor of a conveying belt 6 is selected, the belt motor is installed and driven to run, and a control signal of the frequency converter is accessed into a signal template of a programmable controller of a production line.
3. Selecting a frequency converter (1.5KW) which accords with the power of a belt motor of a metering scale 7, installing and driving the belt motor of the electronic scale to operate, and accessing a control signal of the frequency converter to a signal template of a programmable controller of a production line;
4. a proportional, integral and differential controller (PID controller for short) of the motor speed of the metering scale 7 is added in the programmable controller, and the belt motor speed of the metering scale 7 is adjusted according to the set flow and the actual flow. The set flow rate of the weighing scale 7 is calculated according to the following formula: the scale 1 flow rate X (1-moisture meter 1 moisture value) ÷ (1-moisture meter 4 moisture value) is controlled. The actual flow rate is the actual detection flow rate of the measuring scale 7, and the output value of the PID controller is converted into frequency through scales and then is used as the set frequency of the frequency converter of the measuring scale 7. The PID controller has a proportionality coefficient of 0.009, an integral coefficient of 3.0, a differential coefficient of 0.2, an output frequency lower limit of 30Hz and an upper limit of 48 Hz.
5. The belt speed of the weigher 7 is multiplied by a factor of 0.57 as the set speed of the feed belt 6.
The working principle of the invention is as follows:
in the tobacco leaf loosening and dampening and feeding production process, after tobacco leaves are subjected to the loosening and dampening process, the flow of the outflowing tobacco leaves cannot be kept stable due to the combined action of the rotation of the roller and the shoveling plate in the roller, and the flow of the tobacco leaves entering the loosening and dampening machine is controlled by the control scale 1, so that the tobacco leaves are stable and can be used as the set flow reference of the metering scale 7. According to the invention, the conveying belt 6 in front of the feeder is used as a buffer, the flow detection of the metering scale 7 is matched, the theoretical tobacco flow of the loosening and conditioning outlet is calculated according to the tobacco flow entering the inlet of the loosening and conditioning machine, the tobacco conveying speeds of the conveying belt 6 and the metering scale 7 are adjusted accordingly, when the tobacco flow is too large, the conveying speed is reduced, redundant tobacco can be temporarily accumulated on the conveying belt 6, and when the tobacco flow is too small, the conveying speed is increased, so that the tobacco flow passing through the metering scale 7 can be adjusted, and the fluctuation is reduced.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention and not to limit it; although the present disclosure has been described in detail with reference to preferred embodiments, those of ordinary skill in the art will understand that: modifications to the embodiments of the disclosure or equivalent substitutions of parts of the technical features may still be made; without departing from the spirit of the present disclosure, it is intended to cover all such modifications as fall within the scope of the claimed subject matter.
Claims (3)
1. A method for improving flow stability of tobacco leaves at an inlet of a feeder is characterized in that: the method for improving the flow stability of the tobacco leaves at the inlet of the feeder is to control the speeds of the feeding belt and the metering scale belt, so that the speed is reduced when the flow of the tobacco leaves is too large and is increased when the flow of the tobacco leaves is too small compared with the set speed, and the speed is set according to the flow of the control scale before loosening and moisture regaining, the moisture of the tobacco leaves and the moisture after loosening and moisture regaining.
2. The method for improving flow stability of the feeder inlet tobacco according to claim 1, wherein the method comprises the following steps: the method for controlling the speed of the belt comprises the following steps: step 1, additionally installing a material homogenizing roller and a driving motor on a feeding belt to convey tobacco leaves smoothly;
step 2, additionally installing a frequency converter in a motor loop of the feeding belt, wherein the frequency converter controls the rotating speed of the belt motor;
step 3, newly installing a frequency converter on a belt motor of the metering scale, and controlling the rotating speed of the belt motor by the frequency converter;
step 4, modifying the control mode of the motor speed of the metering scale into a proportional, integral and differential controller, and automatically controlling the speed of the motor according to the set flow and the actual flow;
and 5, multiplying the belt speed of the weighing scale by a coefficient of 0.5-0.7 to serve as the set speed of the feeding belt.
3. The method for improving flow stability of the feeder inlet tobacco leaves according to claim 2, wherein the method comprises the following steps: the specific implementation method of the step 4 is as follows: the speed control mode of the motor of the metering scale is modified to be controlled by a proportional, integral and derivative controller (namely a PID controller), so that the speed of the motor is automatically controlled according to the set flow and the actual flow; the actual flow is the tobacco flow detected by the metering scale in real time;
calculating theoretical flow by the real-time flow of a control scale in front of the loosening and conditioning machine, the real-time moisture value of a moisture meter in front of the loosening and conditioning machine and the real-time moisture value of a moisture meter at the outlet of the loosening and conditioning machine, and taking the flow as the set flow of a PID (proportion integration differentiation) controller to enable a metering scale belt to run at the speed of automatically controlling and adjusting the set flow and the actual flow of the PID controller;
the set flow calculation formula is as follows: set flow = control scale 1 flow X (1-moisture meter moisture value before loosening and conditioning machine) ÷ (1-moisture meter moisture value at outlet of loosening and conditioning machine); the output of the PID controller is set with the upper and lower limits of 30-60HZ to avoid material blockage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010170086.8A CN111165865A (en) | 2020-03-12 | 2020-03-12 | A method for improving the flow stability of tobacco leaves at the inlet of a feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010170086.8A CN111165865A (en) | 2020-03-12 | 2020-03-12 | A method for improving the flow stability of tobacco leaves at the inlet of a feeder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111165865A true CN111165865A (en) | 2020-05-19 |
Family
ID=70621596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010170086.8A Pending CN111165865A (en) | 2020-03-12 | 2020-03-12 | A method for improving the flow stability of tobacco leaves at the inlet of a feeder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111165865A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112985529A (en) * | 2021-02-23 | 2021-06-18 | 中国烟草总公司郑州烟草研究院 | Tobacco material conveying stability detection and control equipment and method based on laser scanning |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1196162A (en) * | 1966-05-04 | 1970-06-24 | Hauni Werke Koerber & Co Kg | Arrangement for Combining Tobacco Streams |
| CN101934930A (en) * | 2010-08-11 | 2011-01-05 | 河南中烟工业有限责任公司 | Method of Controlling Material Flow Balance without Quantitative Feeding Tube |
| CN102538923A (en) * | 2011-12-13 | 2012-07-04 | 陕西省农业机械研究所 | Continuous measuring electronic belt scale |
| CN104792643A (en) * | 2015-01-27 | 2015-07-22 | 邸生才 | Feeding /perfuming material liquid content uniformity on-line measuring instrument and on-line control system |
| CN106805282A (en) * | 2017-02-16 | 2017-06-09 | 红塔烟草(集团)有限责任公司 | A kind of method for controlling water content of chimneying formula dried material |
| CN108523204A (en) * | 2017-03-03 | 2018-09-14 | 红塔烟草(集团)有限责任公司 | Improve the method and device of stem flavoring control accuracy |
-
2020
- 2020-03-12 CN CN202010170086.8A patent/CN111165865A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1196162A (en) * | 1966-05-04 | 1970-06-24 | Hauni Werke Koerber & Co Kg | Arrangement for Combining Tobacco Streams |
| CN101934930A (en) * | 2010-08-11 | 2011-01-05 | 河南中烟工业有限责任公司 | Method of Controlling Material Flow Balance without Quantitative Feeding Tube |
| CN102538923A (en) * | 2011-12-13 | 2012-07-04 | 陕西省农业机械研究所 | Continuous measuring electronic belt scale |
| CN104792643A (en) * | 2015-01-27 | 2015-07-22 | 邸生才 | Feeding /perfuming material liquid content uniformity on-line measuring instrument and on-line control system |
| CN106805282A (en) * | 2017-02-16 | 2017-06-09 | 红塔烟草(集团)有限责任公司 | A kind of method for controlling water content of chimneying formula dried material |
| CN108523204A (en) * | 2017-03-03 | 2018-09-14 | 红塔烟草(集团)有限责任公司 | Improve the method and device of stem flavoring control accuracy |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112985529A (en) * | 2021-02-23 | 2021-06-18 | 中国烟草总公司郑州烟草研究院 | Tobacco material conveying stability detection and control equipment and method based on laser scanning |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103787052B (en) | A kind of even feeding device and even method of feeding thereof | |
| CN202063536U (en) | Double-speed-regulation continuous metering feeding device for spiral conveyer and omniseal belt conveyer scale | |
| CN102754905B (en) | Control method for improving feeding/perfuming uniformity | |
| CN113812658A (en) | A control method for loosening moisture regain and adding water based on neural network model and dual parameter correction | |
| CN1082837C (en) | Control method for grain watering and its apparatus thereof | |
| CN113243547B (en) | Automatic speed regulating method and system for tobacco shred perfuming roller | |
| CN101337429A (en) | High-precision inner-cooling automatic control system | |
| CN211894911U (en) | Comprehensive device for controlling flow of tobacco shred materials | |
| CN114532582A (en) | Big data application analysis platform system and method based on ZJ17 type cigarette weight control system | |
| CN111165865A (en) | A method for improving the flow stability of tobacco leaves at the inlet of a feeder | |
| CN108536087B (en) | Control method and control device for moisture regain and humidification of tobacco leaves and tobacco sheets | |
| US4368165A (en) | Roll press and method of regulation of the throughput of a roll press | |
| CN207570643U (en) | A kind of aggregate continuous weighting system that there is automatic school and claim | |
| CN103342224A (en) | Method and device for automatically controlling discharging amount of waste plastics | |
| US5011090A (en) | Method for controlling a chip refiner | |
| US5011088A (en) | Control method for a chip refiner | |
| CN115593879A (en) | Tobacco material flow control method and its control device, tobacco material storage system | |
| CN104200119B (en) | Coal dust conveying capacity soft instrument based on Roots blower blast | |
| CN113148674A (en) | Storage cabinet discharge flow calculation method based on grating | |
| CN217511918U (en) | Rice mill accuracy control system | |
| KR100370573B1 (en) | Feeding amount control device of constant amount feeder | |
| CN212686735U (en) | Store even ejection of compact automated inspection controlling means of leaf cabinet | |
| CN116784514A (en) | A tobacco waste control method and online weighing device based on the integral method | |
| CN2373171Y (en) | Automatic metering monitoring apparatus for material weight of mixer | |
| CN106696111A (en) | Flow online automatic regulating system and method for silicone adhesive continuous production |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200519 |