CN103382587B - Blowing carding electric control system and control method - Google Patents
Blowing carding electric control system and control method Download PDFInfo
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- CN103382587B CN103382587B CN201310318581.9A CN201310318581A CN103382587B CN 103382587 B CN103382587 B CN 103382587B CN 201310318581 A CN201310318581 A CN 201310318581A CN 103382587 B CN103382587 B CN 103382587B
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Abstract
The invention provides a kind of Blowing carding electric control system and control method, comprise: griping cotton machine, opener, multi-mixer, scutcher, cotton delivery pipe, carding machine, blower fan, gold fire is visited, except micronic dust machine, sensor and control system, be characterized in: control system comprises central controller, man-machine interface, sensor comprises griping cotton machine speed of travel sensor, Open Bale Cotton Depth sensor, mixed cotton pipe pressure sensor, mixing chamber level transducer, cotton blender machine oblique curtain speed peace curtain velocity sensor, cotton delivery pipe pressure sensor, sensor signal output is connected to the signal input part of central controller, griping cotton machine, opener, multi-mixer, the controller of scutcher is connected with central controller respectively.The Automated condtrol realize blowing-carding system on-line checkingi, regulating in real time, avoids many storehouses to run the generation of the situations such as empty, Chu Mianliang fluctuation is excessive, rear class cotton transport instability, frequent starting stopping, ensureing for cotton unobstructed, output sheet cotton continuous uniform.
Description
Technical field
The invention belongs to Weaving device manufacturing technology field, relate to the improvement of blowing-carding machinery, is a kind of Blowing carding electric control system and control method specifically.
Background technology
Spinning equipment before blowing-carding machinery is combined by griping cotton machine, Single axial waste silk opener, multi-mixer, scutcher, cotton delivery pipe, carding machine, usually be also equipped: blower fan, gold fire are visited, except auxiliary equipment such as micronic dust machines, blowing-carding machinery carries the production process from raw cotton to sliver, whole system is divided into three regions, first area: griping cotton machine-multi-mixer; Second area: multi-mixer-scutcher, the 3rd region: scutcher-cotton delivery pipe (carding machine).Control mode between each region of current blowing-carding machinery is that simple cotton of wanting supplies cotton relation substantially, cannot regulate, the improper exception that whole system may be caused to run of the parameter of unit between front stage according to actual conditions real-time online.
Between griping cotton machine to multi-mixer, griping cotton machine is according to the speed of travel set, Open Bale Cotton Depth work, setup parameter improper likely causing grabs cotton quantity not sufficient many storehouse races sky, or grabbing cotton amount too much causes griping cotton machine frequent start-stop operating efficiency to reduce, it is improper that multi-mixer wants cotton pressure bound to arrange, and the fluctuation of cotton storage cotton amount will be caused excessive, and then cause the instability to rear class cotton transport, the frequent starting of the oblique curtain of flat curtain stops, and then causes the abnormal for cotton of production line.
The photoelectric sensor of the cotton height of a pair detection storage is provided with in the cotton storage tank of scutcher, the flat curtain of multi-mixer and oblique curtain run according to the speed in frequency of setting, flat curtain and the oblique curtain speed of user's input are according to commissioning staff's experience and field observation, the running status efficiency of flat curtain and oblique curtain how, do not have software track and analyze, speed low energy causes feeding cotton deficiency to rear class, occurs that system is to cotton not enough situation, speed height directly causes frequent start-stop, and the operational efficiency of board declines.
Scutcher for cotton, belongs to the part of blowing for cotton systematic comparison core to comb and parallel cotton fibers prior to spinning pipeline, directly has influence on the quality that rear class carding machine output products is also whole blowing-carding machinery output products-sliver.First, operator need input target pressure value, rule of thumb regulate proportionality coefficient and the time of integration again, the parameter that controller inputs with user is for benchmark, compare with the force value of feedback, regulate for cotton amount, for operator by PID Mathematical Modeling, compare proportionality coefficient and the time of integration and be difficult to grasp, the improper meeting that arranges of parameter causes system cloud gray model not steady.
Summary of the invention
The problems referred to above that the present invention is directed to prior art existence provide a kind of Blowing carding electric control system, pass through closed-loop control system, the feedback data of each board of real-time detection, board efficiency, the technological parameter of each board of automatic adjustment, keeping system is stablized, and ensures, for cotton unobstructed, output sheet cotton continuous uniform, to reduce motor frequent start-stop simultaneously, reduce power consumption, alleviate the burden of operating personnel.
Meanwhile, provide a kind of control method of Blowing carding electric control system, automaticity is high.
The object of the invention is to be achieved through the following technical solutions:
A kind of Blowing carding electric control system, comprise: griping cotton machine, opener, multi-mixer, scutcher, cotton delivery pipe, carding machine, blower fan, gold fire is visited, except micronic dust machine, sensor and control system, it is characterized in that: described control system comprises: central controller, man-machine interface, described sensor comprises: griping cotton machine speed of travel sensor, Open Bale Cotton Depth sensor, mixed cotton pipe pressure sensor, mixing chamber level transducer, cotton blender machine oblique curtain velocity sensor peace curtain velocity sensor, cotton delivery pipe pressure sensor, the signal output part of described each sensor is connected to the signal input part of central controller, griping cotton machine, opener, the controller of multi-mixer and each self-configuring of scutcher is connected with described central controller respectively, described man-machine interface is connected to described central controller.
Improvement to technique scheme: described mixed cotton pipe pressure sensor has two, is arranged on the cotton delivery pipe on the cotton delivery pipe between griping cotton machine to opener or between opener to multi-mixer; Described mixing chamber level transducer has six, is correlation photoelectric sensor, is separately positioned in the cotton storehouse of each storage of multi-mixer; Described cotton delivery pipe pressure sensor has two, be arranged on the cotton delivery pipe between scutcher to carding machine, described cotton blender machine oblique curtain velocity sensor is arranged in the oblique curtain top rotating shaft of multi-mixer, and described cotton blender machine flat curtain velocity sensor is arranged in the rotating shaft of the flat curtain one end of multi-mixer.
Further improvement to technique scheme: described griping cotton machine speed of travel sensor, Open Bale Cotton Depth sensor, cotton blender machine oblique curtain velocity sensor peace curtain velocity sensor is encoder, and the output of described each encoder is connected to the input that tests the speed of central controller.
Further improvement to technique scheme: the kernel control chip of described central controller is 32 ARM chip STM32F216, it is mutual that described man-machine interface and central controller pass through the self-defined communications protocol of CAN.
A control method for Blowing carding electric control system, comprises the steps:
1, the control of griping cotton machine-multi-mixer (first area): user inputs cleaning cotton system output in man-machine interface, select intelligent mode, above-mentioned parameter is uploaded to central controller by the self-defined communications protocol mode of CAN, central controller first puts into operation according to the crawl degree of depth given tacit consent to, the speed of travel, constantly read the value of griping cotton machine speed of travel sensor, Open Bale Cotton Depth sensor, two mixed cotton pipe pressure sensors simultaneously, based on the travel time of griping cotton machine, by calculating the efficiency of griping cotton machine, keep efficiency between 75%-90%; If the mixed cotton pipeline pressure of multi-mixer continues not reach low pressure limit value, then adjustment improves the griping cotton machine speed of travel automatically, and correspondingly follow the tracks of Open Bale Cotton Depth, in like manner, the mixed cotton pipeline pressure of multi-mixer frequently exceedes the upper limit and griping cotton machine real work efficiency is not high, then reduce the griping cotton machine speed of service, simultaneously corresponding reduction Open Bale Cotton Depth, make the cotton that feeds of the first area of blowing-carding machinery reach relative equilibrium;
2, the control of multi-mixer-scutcher (second area): central controller first puts into operation according to the oblique curtain speed peace curtain speed of acquiescence, constantly read state and the oblique curtain velocity sensor of cotton blender machine of six mixing chamber level transducers simultaneously, the value of flat curtain velocity sensor, by calculating the cotton amount of cotton storage, efficiency in the unit of account time, calculate the start-stop time of motor and want cotton frequency in the unit interval, judge that whether the speed preset is suitable, when start-stop time with when wanting cotton frequency too frequent, reduce the speed of oblique curtain peace curtain, otherwise, increase the speed of oblique curtain peace curtain, it reaches relative equilibrium to make the second area of blowing-carding machinery,
3, the control of scutcher-cotton delivery pipe (the 3rd region): the speeds control of scutcher carries out according to PID pattern, central controller first controls the speed of service of scutcher according to the pid parameter of acquiescence, constantly read the value of feedback of cotton delivery pipe two pressure sensors simultaneously, calculate scutcher to the operational efficiency of cotton motor, when the value of feedback fluctuation of cotton delivery pipe two pressure sensors by Automatic Optimal proportionality coefficient and the time of integration, change the speed of service of scutcher, control the fluctuation of cotton delivery pipe flow, make it basicly stable, to ensure that the sheet cotton of follow-up carding machine is continuous and even, final products-the sliver of blowing-carding machinery is made to have good bar evenness.
Improvement to said method: the peak of the described griping cotton machine speed of travel controls at 19 ms/min, the tracking of the described packet capturing degree of depth is that benchmark increases or reduces with 1mm, and most high depth is 5mm.
Further improvement to said method: described oblique curtain speed is with the amplitude adjusted of 2HZ or 4HZ, and flat curtain speed is with the amplitude adjusted of 1HZ or 2HZ.
Advantage of the present invention and good effect are:
The present invention passes through closed-loop control system, according to the Automated condtrol that output and the kind of setting achieve blowing-carding system on-line checkingi, regulate in real time, do not need to depend on manually, and using machine operational efficiency as the foundation regulated, avoid the generation of the situations such as the race of many storehouses is empty, Chu Mianliang fluctuation is excessive, rear class cotton transport instability, frequent starting stopping, keeping system is stablized, and ensures for cotton unobstructed, output sheet cotton continuous uniform.Meanwhile, subtract reduction power consumption, alleviate the burden of operating personnel, effectively improve the operating efficiency of whole blowing-carding system.The control method of Blowing carding electric control system is reasonable, and automaticity is high.
Accompanying drawing explanation
Fig. 1 is that the present invention adopts the schematic diagram existing griping cotton machine being arranged speed of travel sensor and Open Bale Cotton Depth sensor;
The cotton delivery pipe that connects of griping cotton machine of the present invention arranges the schematic diagram of mixed cotton pipe pressure sensor to Fig. 2;
The cotton delivery pipe that connects of scutcher of the present invention arranges the schematic diagram of cotton delivery pipe pressure sensor to Fig. 3;
Fig. 4 is schematic diagram multi-mixer of the present invention being arranged sensor;
Fig. 5 is the control principle block diagram of Blowing carding electric control system of the present invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in further detail:
See Fig. 1-Fig. 5, the embodiment of a kind of Blowing carding electric control system of the present invention, comprising: griping cotton machine, opener, multi-mixer, scutcher, cotton delivery pipe, carding machine, blower fan, gold fire are visited, except micronic dust machine, sensor and control system.Above-mentioned control system comprises: central controller, man-machine interface, described sensor comprises: griping cotton machine speed of travel sensor 2(prior art, be installed on movable motor speed reducer output shaft), Open Bale Cotton Depth sensor 1(prior art, be installed on lifting motor speed reducer output shaft), mixed cotton pipe pressure sensor 3, mixing chamber level transducer 6, the oblique curtain velocity sensor 4 of cotton blender machine, the flat curtain velocity sensor 5 of cotton blender machine, cotton delivery pipe pressure sensor 7, the signal output part of described each sensor is connected to the signal input part of central controller, griping cotton machine, opener, the controller of multi-mixer and each self-configuring of scutcher is connected with central controller respectively, man-machine interface is connected to central controller.
Above-mentioned mixed cotton pipe pressure sensor 3 has two (prior art is one), be arranged on the cotton delivery pipe on the cotton delivery pipe between griping cotton machine to opener or between opener to multi-mixer, two mixed cotton pipe pressure sensors 3 are arranged above and below setting, and its output signal is connected to the analog input end of central controller.Arrange two mixed cotton pipe pressure sensors 3 can overcome because pressure sensor drifts about the metrical error caused.
Above-mentioned mixing chamber level transducer 6 has six, is correlation photoelectric sensor, and be separately positioned in 6 cotton storehouses of storage of multi-mixer, its signal output part is connected respectively to the On-off signal end of central controller.Multiple spot detects the Chu Mianliang being convenient to grasp mixing chamber each position, also avoids photoelectric sensor fault to cause undetected.
Above-mentioned cotton delivery pipe pressure sensor 7 has two (prior art is one), be arranged on the cotton delivery pipe between scutcher to carding machine, two cotton delivery pipe pressure sensors 7 are arranged above and below setting, and its output signal is connected to the analog input end of central controller.Arrange two cotton delivery pipe pressure sensors 7 can overcome because pressure sensor drifts about the metrical error caused.
Above-mentioned cotton blender machine oblique curtain velocity sensor 4 is arranged in the rotating shaft on the oblique curtain top of cotton blender machine, and described cotton blender machine flat curtain velocity sensor 5 is arranged in the rotating shaft of the flat curtain one end of cotton blender machine.
Above-mentioned griping cotton machine speed of travel sensor 2, Open Bale Cotton Depth sensor 1, the peaceful curtain velocity sensor 5 of cotton blender machine oblique curtain velocity sensor 4 are encoder, and the output of each encoder is connected to the input that tests the speed of central controller.
In the present embodiment, the kernel control chip of central controller is 32 ARM chip STM32F216.This chip has 144 pins, has abundant various peripheral interface circuits. and can save the quantity of peripheral circuit device, reduce costs, improve reliability.TM32F216 has 32 tunnel input I/O, and 32 tunnels export I/O, 10 drive test speed inputs, 6 12, tunnel analog inputs, 2 12, tunnel analog outputs, 2 tunnel CAN communication mouths, 1 tunnel 485 port, 1 road I2C port.These hardware resources can meet needs of the present invention.In the present embodiment, man-machine interface and central controller are mutual by the self-defined communications protocol of CAN.The drive motors of each unit of Blowing carding uses frequency converter timing usually in actual use, now, central controller can according to the configuration of frequency converter select corresponding port and central controller mutual.
See Fig. 5, the embodiment of the control method of a kind of Blowing carding electric control system of the present invention, the control method of Blowing carding electric control system is divided into three Region control, can be divided into three modules.
1, the control of griping cotton machine-multi-mixer (first area):
User inputs cleaning cotton system output in man-machine interface, and select intelligent mode, above-mentioned parameter is uploaded to central controller by the self-defined communications protocol mode of CAN.Central controller first puts into operation according to the crawl degree of depth given tacit consent to, the speed of travel, constantly read the value of griping cotton machine speed of travel sensor 2, Open Bale Cotton Depth sensor 1, two mixed cotton pipe pressure sensors 3 simultaneously, based on the travel time of griping cotton machine, calculated the efficiency of griping cotton machine by software, keep efficiency between 75%-90%.If the mixed cotton pipeline pressure of multi-mixer continues not reach low pressure limit value, then adjustment improves the griping cotton machine speed of travel automatically, and correspondingly follows the tracks of Open Bale Cotton Depth.In like manner, the mixed cotton pipeline pressure of multi-mixer frequently exceedes the upper limit and griping cotton machine real work efficiency is not high, then reduce the griping cotton machine speed of service, simultaneously corresponding reduction Open Bale Cotton Depth, makes the cotton that feeds of the first area of blowing-carding machinery reach relative equilibrium.For the protection to machinery equipment, avoid machine in limiting condition work, the peak of the griping cotton machine speed of travel controls at 19 ms/min, and the tracking of the packet capturing degree of depth is that benchmark increases or reduces with 1mm, and most high depth is 5mm.
2, the control of multi-mixer-scutcher (second area): central controller first puts into operation according to the oblique curtain speed peace curtain speed of acquiescence, constantly read the state (state of this level transducer 6 embodies the cotton amount of cotton storage and whether reaches set amount) of six mixing chamber level transducers 6 simultaneously, and oblique curtain velocity sensor, the value of flat curtain velocity sensor, the cotton amount of cotton storage is calculated by software, efficiency in the unit of account time, calculate the start-stop time of motor and want cotton frequency in the unit interval, judge that whether the speed preset is suitable, when start-stop time with when wanting cotton frequency too frequent, reduce oblique curtain peace curtain speed, otherwise, increase low oblique curtain peace curtain speed, it reaches relative equilibrium to make the second area of blowing-carding machinery.Usually tiltedly curtain speed is with the amplitude adjusted of 2HZ or 4HZ, and flat curtain speed is with the amplitude adjusted of 1HZ or 2HZ.
3, the control of scutcher-cotton delivery pipe (the 3rd region):
Scutcher supplies cotton to cotton delivery pipe, belong to the part of blowing for cotton systematic comparison core, be directly connected to the bar evenness that carding machine output products is also sliver, for ensureing that scutcher exports even, the speeds control of scutcher carries out according to PID pattern, central controller first controls the speed of service of scutcher according to the pid parameter of acquiescence, constantly read the value of feedback of cotton delivery pipe two pressure sensors simultaneously, calculate scutcher to the operational efficiency of cotton motor, when the value of feedback fluctuation of the pressure sensor of two on cotton delivery pipe 7 by software Automatic Optimal proportionality coefficient and the time of integration, change the speed of service of scutcher, control the fluctuation of cotton delivery pipe flow, make it basicly stable, to ensure that the sheet cotton of follow-up carding machine is continuous and even, final products-the sliver of blowing-carding machinery is made to have good bar evenness.
The auxiliary equipment of blowing-carding machinery as: blower fan, gold fire are visited, except micronic dust machine etc., central controller only controls itself and start and stop while of corresponding equipment.
Certainly, above-mentioned explanation is not the restriction to invention, and the present invention is also not limited to above-mentioned citing; those skilled in the art; in essential scope of the present invention, done change, remodeling, interpolation or replacement, also should belong to protection scope of the present invention.
Claims (3)
1. the control method of a Blowing carding electric control system, described Blowing carding electric control system comprises: griping cotton machine, opener, multi-mixer, scutcher, cotton delivery pipe, carding machine, blower fan, gold fire is visited, except micronic dust machine, sensor and control system, it is characterized in that: described control system comprises: central controller, man-machine interface, described sensor comprises: griping cotton machine speed of travel sensor, Open Bale Cotton Depth sensor, mixed cotton pipe pressure sensor, mixing chamber level transducer, cotton blender machine oblique curtain velocity sensor and the flat curtain velocity sensor of cotton blender machine, cotton delivery pipe pressure sensor, the signal output part of described each sensor is connected to the signal input part of central controller, griping cotton machine, opener, the controller of multi-mixer and each self-configuring of scutcher is connected with described central controller respectively, described man-machine interface is connected to described central controller, described mixed cotton pipe pressure sensor has two, is arranged on the cotton delivery pipe on the cotton delivery pipe between griping cotton machine to opener or between opener to multi-mixer, described mixing chamber level transducer has six, is correlation photoelectric sensor, is separately positioned in the cotton storehouse of each storage of multi-mixer, described cotton delivery pipe pressure sensor has two, be arranged on the cotton delivery pipe between scutcher to carding machine, described cotton blender machine oblique curtain velocity sensor is arranged in the oblique curtain top rotating shaft of multi-mixer, and described cotton blender machine flat curtain velocity sensor is arranged in the rotating shaft of the flat curtain one end of multi-mixer, described griping cotton machine speed of travel sensor, Open Bale Cotton Depth sensor, cotton blender machine oblique curtain velocity sensor peace curtain velocity sensor is encoder, and the output of described each encoder is connected to the input that tests the speed of central controller,
The control method of described Blowing carding electric control system, comprises the steps:
(1) control of griping cotton machine-multi-mixer: user inputs cleaning cotton system output in man-machine interface, select intelligent mode, parameter is uploaded to central controller by the self-defined communications protocol mode of CAN, central controller first puts into operation according to the crawl degree of depth given tacit consent to, the speed of travel, constantly read the value of griping cotton machine speed of travel sensor, Open Bale Cotton Depth sensor, two mixed cotton pipe pressure sensors simultaneously, based on the travel time of griping cotton machine, by calculating the efficiency of griping cotton machine, keep efficiency between 75%-90%; If the mixed cotton pipeline pressure of multi-mixer continues not reach low pressure limit value, then adjustment improves the griping cotton machine speed of travel automatically, and correspondingly follow the tracks of Open Bale Cotton Depth, in like manner, the mixed cotton pipeline pressure of multi-mixer frequently exceedes the upper limit and griping cotton machine real work efficiency is not high, then reduce the griping cotton machine speed of service, simultaneously corresponding reduction Open Bale Cotton Depth, make the cotton that feeds of the first area of blowing-carding machinery reach relative equilibrium;
(2) control of multi-mixer-scutcher: central controller first puts into operation according to the oblique curtain speed peace curtain speed of acquiescence, constantly read state and the oblique curtain velocity sensor of cotton blender machine of six mixing chamber level transducers simultaneously, the value of flat curtain velocity sensor, by calculating the cotton amount of cotton storage, efficiency in the unit of account time, calculate the start-stop time of motor and want cotton frequency in the unit interval, judge that whether the speed preset is suitable, when start-stop time with when wanting cotton frequency too frequent, reduce the speed of oblique curtain peace curtain, otherwise, increase the speed of oblique curtain peace curtain, the second area of blowing-carding machinery is made to reach relative equilibrium,
(3) control of scutcher-cotton delivery pipe: the speeds control of scutcher carries out according to PID pattern, central controller first controls the speed of service of scutcher according to the pid parameter of acquiescence, constantly read the value of feedback of cotton delivery pipe two pressure sensors simultaneously, calculate scutcher to the operational efficiency of cotton motor, when the value of feedback fluctuation of cotton delivery pipe two pressure sensors by Automatic Optimal proportionality coefficient and the time of integration, change the speed of service of scutcher, control the fluctuation of cotton delivery pipe flow, make it basicly stable, to ensure that the sheet cotton of follow-up carding machine is continuous and even, final products-the sliver of blowing-carding machinery is made to have good bar evenness.
2. according to the control method of Blowing carding electric control system according to claim 1, it is characterized in that: the peak of the described griping cotton machine speed of travel controls at 19 ms/min, the tracking of the packet capturing degree of depth is that benchmark increases or reduces with 1mm, and most high depth is 5mm.
3. according to the control method of the Blowing carding electric control system described in claim 1 or 2, it is characterized in that: described oblique curtain speed is with the amplitude adjusted of 2HZ or 4HZ, and flat curtain speed is with the amplitude adjusted of 1HZ or 2HZ.
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| CN103643354A (en) * | 2013-12-16 | 2014-03-19 | 张家港市天江精密模具制造有限公司 | Cotton mixing machine for textile machine |
| CN105483874B (en) * | 2016-02-01 | 2018-01-30 | 湖北金安纺织集团股份有限公司 | A kind of more storehouse electric control gears |
| CH713861A1 (en) * | 2017-06-08 | 2018-12-14 | Rieter Ag Maschf | Production control in a blowroom. |
| CN107385569A (en) * | 2017-08-15 | 2017-11-24 | 青岛宏大纺织机械有限责任公司 | A kind of picker gives cotton feeding unit |
| CN110205715A (en) * | 2019-07-12 | 2019-09-06 | 忠华集团有限公司 | Blowing-carding machinery and kapok blending method |
| CN111638407B (en) * | 2020-01-20 | 2022-06-21 | 武汉裕大华纺织有限公司 | Intelligent spinning cotton grabbing fault detection system |
| CN111778591A (en) * | 2020-07-09 | 2020-10-16 | 青岛宏大纺织机械有限责任公司 | Cotton feeding system and method for blowing line to carding machine line |
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