CN108451009B - Wire feeding wind speed shifting level adjusting system - Google Patents
Wire feeding wind speed shifting level adjusting system Download PDFInfo
- Publication number
- CN108451009B CN108451009B CN201810354843.XA CN201810354843A CN108451009B CN 108451009 B CN108451009 B CN 108451009B CN 201810354843 A CN201810354843 A CN 201810354843A CN 108451009 B CN108451009 B CN 108451009B
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- Prior art keywords
- wire feeding
- pipeline
- wind speed
- pneumatic
- wind
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- 230000001105 regulatory effect Effects 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 4
- 241000208125 Nicotiana Species 0.000 description 5
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000001502 supplementing effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010618 wire wrap Methods 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
- A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
- A24C5/39—Tobacco feeding devices
- A24C5/392—Tobacco feeding devices feeding pneumatically
Abstract
The invention discloses a wire feeding wind speed shifting level adjusting system, which comprises a PLC intelligent controller 1 and a conveying device, wherein the conveying device comprises an intelligent power saver 2 electrically connected with the PLC intelligent controller 1 and a centrifugal ventilator 31 electrically connected with the intelligent power saver 2; the centrifugal ventilator 31 is connected with a plurality of branch pipelines 33 through a wind pressure pipeline 34; one end of each branch pipeline 33 is connected with a wrapping machine 335; each wrapping machine 335 is connected with a wire feeder 338 through a wire feeding pipeline 337; the wire feeder 338 is connected with a pneumatic cut-off valve 334; each branch pipeline 33 is provided with a pneumatic adjusting butterfly valve 331 and a pressure transmitter 330; each wire feeding pipe 337 is provided with a venturi sensor 336; the pressure transmitter 330, the pneumatic cut-off valve 334 and the pneumatic regulation butterfly valve 331 are all electrically connected with the PLC intelligent controller 1; the PLC intelligent controller 1 is electrically connected with a wind speed regulator and a wind pressure regulator; the pressure transmitter 330 is located between the pneumatic adjustment butterfly valve 331 and the wind pressure pipe 34.
Description
Technical Field
The invention relates to the technical field of fragile materials conveyed by wind power, in particular to a wire feeding wind speed shifting level adjusting system.
Background
The tobacco shred supply mode used by the cigarette factory adopts the most popular pipeline negative pressure wind power transmission at present; the negative pressure wind power transmission is favored by domestic and foreign peers due to the advantages of investment saving, high reliability, low operation and maintenance cost, cleanness, environmental protection and the like; according to the structure and the working characteristics of the wind power tobacco conveying system, wind pressure and wind speed are mutually related and mutually restricted; air is compressible fluid, and is easy to fluctuate rapidly in large amplitude when flowing in a pipeline, so that the stability is very poor; because the material of the yarn collecting box of the wrapping machine is intermittently operated, and one working period is within 60 seconds, the time is short and discontinuous, and because of the solid state non-uniformity of the source tobacco yarns, each material, the intermittent time and the required time are random, and the quick full opening and full closing of the pneumatic cut-off valve arranged on the yarn collecting box are realized in a step mode.
The wind balance system plays an important role in the conveying process; the original wind balance system is characterized in that a pneumatic cut-off valve is arranged on a branch pipeline on a dust return pipeline according to a conventional linkage mode: when the material is needed, the pneumatic cut-off valve on the yarn collecting box is quickly fully opened, and the air supplementing pneumatic cut-off valve is quickly fully closed; when in intermittence, the pneumatic cut-off valve on the yarn collecting box is quickly opened and closed, and the air supplementing pneumatic cut-off valve is quickly and fully opened; the wind pressure of each branch pipe can generate severe fluctuation and cannot be stabilized by the mechanical and simple mode for supplementing wind, and the wind speed of the branch pipe cannot be accurately regulated and stabilized, and meanwhile, the wind pressure of a main pipe can be greatly fluctuated, so that the wind pressures of other branch pipes cannot be stabilized, and the branch pipes are mutually interfered and mutually influenced; the stability of the wind balance system in the conveying device is not facilitated, and the breakage rate of materials is overlarge.
Disclosure of Invention
The invention aims to provide a wire feeding wind speed shifting level adjusting system which is used for solving the problem that wind pressure and wind speed in a device are unstable when materials are required.
In order to achieve the above purpose, the technical scheme of the invention is that
The wire feeding wind speed shifting level adjusting system comprises a PLC intelligent controller and a conveying device, wherein the conveying device comprises an intelligent electricity saver electrically connected with the PLC intelligent controller and a centrifugal ventilator electrically connected with the intelligent electricity saver; the centrifugal ventilator is connected with a plurality of pipelines through a wind pressure pipeline; the air pressure pipeline is provided with a valve, and the valve is positioned at one end which is close to the centrifugal ventilator and far away from the branch pipeline; one end of each branch pipeline is connected with a wrapping machine; each wrapping machine is connected with a wire feeding machine through a wire feeding pipeline; the wire feeding machine is connected with a pneumatic cut-off valve;
each branch pipeline is provided with a pneumatic adjusting butterfly valve and a pressure transmitter; a venturi sensor is arranged on each wire feeding pipeline;
the pressure transmitter, the pneumatic cut-off valve and the pneumatic regulating butterfly valve are electrically connected with the PLC intelligent controller.
Further, the PLC intelligent controller is electrically connected with a wind speed regulator, a wind pressure regulator and a speed transmitter.
Further, the pressure transmitter is located between the pneumatic adjusting butterfly valve and the wind pressure pipeline.
Further, one of the wrapping machines is connected with the wire feeder through a wire feeding pipeline.
Further, four of the wire feeding pipes may be connected to one of the wire feeders.
Furthermore, each winding machine can be connected with the wire feeding machine through two wire feeding pipelines, and the two wire feeding pipelines are smoothly converged into one wire feeding pipeline which is connected with the winding machine.
Further, a switching value signal when the pneumatic control valve is opened is used as a material requiring signal Q; the wind speed of the wire feeding pipeline is set to be SV and the wind pressure is set to be SP; the wind pressure SP and the wind speed SV satisfy the relation sp= kSV 2 The method comprises the steps of carrying out a first treatment on the surface of the k is a constant; the method is characterized in that a wind speed set value SV in the wire feeding pipeline is used as a given of a wind speed regulator, a venturi tube sensor is used for feeding back a wind speed measured value PV in the wire feeding pipeline as a feedback of the wind speed regulator, the output of the wind speed regulator is used as a given of a wind pressure regulator, a wind pressure measured value P of wind pressure in a branch pipe is used as a feedback of the wind pressure regulator on a branch pipeline, a PID shifting level regulating system is formed, when a PLC receives a material-needed signal Q, the PLC immediately carries out PID operation on the built-in shifting level regulating system, and the wind speed is regulated to be stable by regulating the opening and closing degree of a pneumatic regulating butterfly valve.
Further, after the material is required to be fed, the pneumatic adjusting butterfly valve is controlled to return to an initial position through the PLC intelligent controller; when the PLC intelligent controller receives the material-required signal Q again, the PLC intelligent controller controls the pneumatic adjusting butterfly valve to start flexible adjustment from the initial position.
Further, the opening range of the pneumatic adjusting butterfly valve is 0.5% -99.5%.
The invention has the following advantages: according to the wire feeding wind speed shifting level adjusting system, the wind pressure and the wind speed in the conveying process of the conveying device can be stabilized through the adjusting system, so that the stability of a wind balance system is improved, the breakage rate of materials and the production cost are reduced, and the production efficiency and the production benefit are improved.
Drawings
FIG. 1 is a schematic diagram showing the overall structure connection of a wire feeding wind speed shifting level adjusting system provided by the invention;
FIG. 2 is a schematic diagram showing the convergence connection of two wire feeding pipelines of the wire feeding wind speed shifting level regulating system provided by the invention;
fig. 3 is a schematic diagram of a system block flow of a wire feeding wind speed shifting level adjusting system provided by the invention.
Detailed Description
The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
Example 1
The embodiment 1 of the invention provides a wire feeding wind speed shifting level adjusting system, referring to fig. 1, comprising a PLC intelligent controller 1 and a conveying device, wherein the conveying device comprises an intelligent power saver 2 electrically connected with the PLC intelligent controller 1 and a centrifugal ventilator 31 electrically connected with the intelligent power saver 2; the centrifugal ventilator 31 is connected with a plurality of branch pipelines 33 through a wind pressure pipeline 34; the wind pressure pipeline 34 is provided with a valve 32, and the valve 32 is positioned at one end close to the centrifugal ventilator 31 and far away from the branch pipeline 33; one end of each branch pipeline 33 is connected with a wrapping machine 335; each of the wrapping machines 335 is connected with a wire feeder 338 through a wire feeding pipeline 337; the wire feeder 338 is connected with a pneumatic cut-off valve 334; each branch pipeline 33 is provided with a pneumatic adjusting butterfly valve 331 and a pressure transmitter 330; a venturi sensor 336 is installed on each wire feeding pipeline 337; the pressure transmitter 330, the pneumatic cut-off valve 334 and the pneumatic adjustment butterfly valve 331 are all electrically connected with the PLC intelligent controller 1; the PLC intelligent controller 1 is electrically connected with a wind speed regulator T1, a wind pressure regulator T2 and a speed transmitter T3; the pressure transmitter 330 is located between the pneumatic adjustment butterfly valve 331 and the wind pressure pipe 34.
During use, the wind speed in the wire feeding pipeline is monitored through the Venturi tube sensor, monitored data are transmitted back to the PLC intelligent controller, meanwhile, the PLC intelligent controller is fed back through the pressure transmitter, then the intelligent controller performs PID calculation on the whole wind balance system in the conveying device, and then the wind balance system is controlled and stabilized by adjusting the opening and closing degree of the pneumatic adjusting butterfly valve.
Example 2
The system for adjusting the wire feeding speed and the stage of shifting provided in embodiment 2 of the present invention is substantially the same as that of embodiment 1, except that please continue to refer to fig. 1, wherein one of the wrapping machines 335 is connected to the wire feeder 338 through one of the wire feeding pipes 337.
Example 3
The system for adjusting the speed of wire feeding and shifting provided in embodiment 3 of the present invention is substantially the same as that in embodiment 2, except that, please continue to refer to fig. 1, in order to improve the conveying efficiency, four wire feeding pipes 337 may be connected to one wire feeder 338.
Example 4
The system for adjusting the wire feeding wind speed and the shifting stage provided in embodiment 4 of the present invention is substantially the same as that of embodiment 3, except that, referring to fig. 2, each wire wrapping machine 335 may be connected to the wire feeding machine 338 through two wire feeding pipes 337, and the two wire feeding pipes 337 are smoothly converged into one wire feeding pipe 337 to be connected to the wire wrapping machine 335; in order to reliably feed wires to the wrapping machine, the pipe blockage and the material breakage are prevented.
Example 5
The system for adjusting the wire feeding wind speed and the shifting stage provided by the embodiment 5 of the invention is basically the same as the embodiment 4, and is different in that, referring to fig. 3, a switching value signal when the pneumatic adjusting valve is opened is used as a material requirement signal Q; the wind speed of the wire feeding pipeline 337 is set to be SV and the wind pressure is set to be SP; the wind pressure SP and the wind speed SV satisfy the relation sp= kSV 2 The method comprises the steps of carrying out a first treatment on the surface of the k is a constant; the wire feeding pipelineThe set value SV of the wind speed in 337 is used as the given of the wind speed regulator, the measured value PV of the wind speed in the wire feeding pipeline 337 is used as the feedback of the wind speed regulator through the Venturi tube sensor 336, the output of the wind speed regulator is used as the given of the wind pressure regulator, the measured value P of the wind pressure in the branch pipe is used as the feedback of the wind pressure regulator through the pressure transmitter 330 on the branch pipe 33, and a PID shifting level regulating system is formed, when the PLC receives a material-needed signal Q, the PLC immediately carries out PID operation on the built-in shifting level regulating system, and the wind speed is regulated to be stable by regulating the opening degree of the pneumatic regulating butterfly valve 331.
Example 6
The wire feeding wind speed shifting level adjusting system provided by the embodiment 6 of the invention is basically the same as that of the embodiment 5, and is different in that in order to achieve a better adjusting effect, after the material is needed to be fed, the pneumatic adjusting butterfly valve 331 is controlled to return to the initial position through the PLC intelligent controller 1; when the PLC intelligent controller 1 receives the material requiring signal Q again, the PLC intelligent controller 1 controls the pneumatic adjusting butterfly valve 331 to start flexible adjustment from an initial position; thereby achieving the purpose of reducing the breakage of cut tobacco caused by suddenly opening the pneumatic cut-off valve on the cut-tobacco collecting box.
Example 7
The wire feeding wind speed shifting level adjusting system provided by the embodiment 7 of the invention is basically the same as the embodiment 6, and is different in that in order to prevent sudden interference signals, the whole closing of the adjusting butterfly valve is caused, the conveying of cut tobacco is affected, and the production is delayed, and the opening range of the pneumatic adjusting butterfly valve 331 is 0.5% -99.5%.
While the invention has been described in detail in the foregoing general description and specific examples, it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the invention and are intended to be within the scope of the invention as claimed.
Claims (1)
1. The wire feeding wind speed shifting level adjusting system comprises a PLC intelligent controller and a conveying device, and is characterized in that the conveying device comprises an intelligent electricity saver electrically connected with the PLC intelligent controller and a centrifugal ventilator electrically connected with the intelligent electricity saver; the centrifugal ventilator is connected with a plurality of pipelines through a wind pressure pipeline; the air pressure pipeline is provided with a valve, and the valve is positioned at one end which is close to the centrifugal ventilator and far away from the branch pipeline; one end of each branch pipeline is connected with a wrapping machine; each wrapping machine is connected with a wire feeding machine through a wire feeding pipeline; the wire feeding machine is connected with a pneumatic cut-off valve;
each branch pipeline is provided with a pneumatic adjusting butterfly valve and a pressure transmitter; a venturi sensor is arranged on each wire feeding pipeline;
the pressure transmitter, the pneumatic cut-off valve and the pneumatic regulating butterfly valve are all electrically connected with the PLC;
the PLC intelligent controller is electrically connected with a wind speed regulator, a wind pressure regulator and a speed transmitter;
the pressure transmitter is positioned between the pneumatic adjusting butterfly valve and the wind pressure pipeline;
one of the wrapping machines is connected with the wire feeding machine through a wire feeding pipeline;
wherein four wire feeding pipelines can be connected with one wire feeding machine;
each winding machine can be connected with the wire feeding machine through two wire feeding pipelines, and the two wire feeding pipelines are smoothly converged into one wire feeding pipeline which is connected with the winding machine;
the switching value signal when the pneumatic regulating butterfly valve is opened is used as a material-required signal Q; the wind speed of the wire feeding pipeline is set to be SV and the wind pressure is set to be SP; the wind pressure SP and the wind speed SV satisfy the relation sp= kSV 2 The method comprises the steps of carrying out a first treatment on the surface of the k is a constant; the wind speed set value SV in the wire feeding pipeline is used as the given of a wind speed regulator, the wind speed measured value PV in the wire feeding pipeline is used as the feedback of the wind speed regulator through a Venturi tube sensor, the output of the wind speed regulator is used as the given of a wind pressure regulator, the wind pressure measured value P of the wind pressure in a branch pipe is used as the feedback of the wind pressure regulator through a pressure transmitter on a branch pipeline, a PID shifting level regulating system is formed, and when the PLC receives "When a material is required to be processed, the PLC immediately carries out PID operation on a built-in channeling-stage adjusting system, and the wind speed is regulated to be stable by regulating the opening and closing degree of a pneumatic regulating butterfly valve;
after the material is required to be fed, the pneumatic adjusting butterfly valve is controlled to return to an initial position through the PLC intelligent controller; when the PLC intelligent controller receives the material-requiring signal Q again, the PLC intelligent controller controls the pneumatic adjusting butterfly valve to start flexible adjustment from an initial position;
the opening range of the pneumatic adjusting butterfly valve is 0.5% -99.5%.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810354843.XA CN108451009B (en) | 2018-04-19 | 2018-04-19 | Wire feeding wind speed shifting level adjusting system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810354843.XA CN108451009B (en) | 2018-04-19 | 2018-04-19 | Wire feeding wind speed shifting level adjusting system |
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| CN108451009A CN108451009A (en) | 2018-08-28 |
| CN108451009B true CN108451009B (en) | 2023-11-24 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112506038A (en) * | 2020-10-15 | 2021-03-16 | 福建龙净环保股份有限公司 | Method and device for controlling balance of air pressure of gas |
| CN112401294B (en) * | 2020-11-26 | 2022-06-07 | 湖北中烟工业有限责任公司 | Diagnosis and analysis method based on intelligent diagnosis and analysis system for wind wire feeding |
| CN113974207A (en) * | 2021-11-09 | 2022-01-28 | 浙江中烟工业有限责任公司 | Self-adaptive control method of wind power wire feeding system based on fuzzy control |
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