CN102749936A - Yarn tension measuring and controlling system - Google Patents
Yarn tension measuring and controlling system Download PDFInfo
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- CN102749936A CN102749936A CN2012102461376A CN201210246137A CN102749936A CN 102749936 A CN102749936 A CN 102749936A CN 2012102461376 A CN2012102461376 A CN 2012102461376A CN 201210246137 A CN201210246137 A CN 201210246137A CN 102749936 A CN102749936 A CN 102749936A
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Abstract
The invention discloses a yarn tension measuring and controlling system, belonging to the field of textile machinery. The yarn tension measuring and controlling system comprises a tension sensor, a CPU, a torque motor, a controller, an amplifier, a multiplexer, an A/D converter, a D/A converter, a power amplifier device and an upper computer, wherein the input end of the tension sensor is connected with a yarn on a yarn coil, the output end of the tension sensor is connected with the amplifier, a signal of the pressure sensor passes by the multiplexer and the A/D converter after being amplified by the amplifier, and reaches the CPU, the CPU carries out PID (Proportion Integration Differentiation) operation on the received tension signal and a set value, then a control signal sequentially passes by the controller, the D/A converter and the power amplifier device, and reaches the torque motor finally, the torque motor acts on the yarn coil according to the control signal, the tension of the yarn on the yarn coil is kept constant, and the yarn quality is ensured.
Description
Technical field
The present invention relates to a kind of yarn tension TT&C system, belong to field of textile machinery.
Background technology
In textile industry, if it is uneven to weave the yarn tension of usefulness, just can not bear external force jointly, thereby cause yarn strength to reduce, influence the product quality of yarn goods.Therefore, the tension force to yarn carries out steadily, can definite value control become and guarantee yarn quality of item and the key issue of enhancing productivity.
Since the eighties in 20th century, the mechanical type yarn tension control device of Limited Feedback regulatory function has appearred having, and this also is the lower mechanical type tensioner of precision of domestic main use at present; This device has increased a friction disc at the yarn roller rear portion; Can adjust yarn tension to a certain extent, but reflect insensitively, range of adjustment is limited; Control accuracy is also not too high, and the tension force that is difficult in the assurance winding process is accurately controlled requirement.
Domestic some tension control systems of having developed mainly are to adopt Industrial Control Computer to be the control core at present, and powder clutch is an executive component, and radius is followed arm and fed back yarn group change in radius in real time., the magnetic flux growth rate of powder clutch depends on the inductance value of magnetizing coil, and after magnetic flux was set up, magnetic had the time-delay process when forming the magnetic chain that crosses the gap by discrete state; Simultaneously, fiber be because self extensibility also can postpone the foundation of tension force, and this makes powder clutch have the characteristic of hysteresis, influences the stability and the precision of The whole control system.
In view of this; The inventor studies this; Find that torque motor has application very widely in the slow-speed of revolution, big torque dragging system, if be used in torque motor in the yarn tension TT&C system, improve property time lag of tension control system as automaton; Can improve the control accuracy of system effectively, this case produces thus.
Summary of the invention
The yarn tension TT&C system that the purpose of this invention is to provide a kind of permanent linear speed, permanent tension force, precision height, good stability and energy saving.
To achieve these goals, solution of the present invention is:
A kind of yarn tension TT&C system; Comprise tension pick-up, CPU, torque motor, controller, amplifier, traffic pilot, A/D converter, D/A converter, amplifirer and host computer; The yarn on the input end connecting filament of the tension pick-up volume wherein, output terminal connects amplifier, after amplifier amplifies the signal of pressure transducer through traffic pilot and A/D converter; Arrive CPU; CPU carries out the PID computing with tension signal that receives and setting value, again control signal is passed through controller, D/A converter and amplifirer successively, arrives torque motor at last; Torque motor makes the yarn tension on the silk volume constant according to control signal effect and silk volume.CPU links to each other with host computer through serial communication, receives the yarn tension setting value that host computer sends, and simultaneously, CPU also sends actual yarn tension measurement result to host computer, is convenient to follow-up of quality.
Said yarn tension TT&C system comprises several CPU, and each CPU is connected with several tension pick-ups, amplifier, D/A converter, amplifirer and torque motor.
Said CPU adopts the AT89C52 single-chip microcomputer, is the computing and the control center of whole tension measure and control system, according to the increment type PID control algolithm, adopts assembly language to write control program.
Said CPU also comprises an external memory, is used for the tension value of yarn on each volume that storage system sets, PID controlled variable and some other parameter of each passage.
Host computer and each CPU adopt the RS232 communication modes.
Said torque motor adopts brushless DC servomotor, and its single ingot rewinding mechanism is controlled 1600 rev/mins of rewinding rotating speeds separately by built-in small computer.
When above-mentioned yarn tension TT&C system moves; At first measure in real time and show each and the tension force of the silk volume yarn that is attached thereto, arrive A/D converter through traffic pilot after the tension pick-up signal that each amplifier connects correspondence amplifies, carry out analog to digital conversion through each tension pick-up; Digital signal after then will changing sends to CPU; CPU sends to D/A converter through controller after the setting value of tension signal that receives and host computer transmission is carried out the PID computing again, by D/A converter output analog control voltage signal; Amplify back braking DC torque motor by amplifirer again; Let its constant running, the constant moment of resistance is provided, thus the tension force size on the stabilization filament volume yarn.
Total system is carried out close-loop feedback control, adopts tension pick-up to carry out signals collecting earlier, and then stablizes the tension force on the yarn through the moment of resistance of power control cpu square motor; Each bobbin all can detect from motion tracking in the process of coiling yarn, along with the increase of thread layers diameter; Rotating speed progressively reduces, thereby reaches from the inside to surface, and yarn speed is consistent all the time; Guaranteed promptly that also yarn tension is consistent all the time, guaranteed yarn quality; Above-mentioned yarn tension TT&C system is applicable to that up-coiler, bobbin-winding machine, warping machine, cladding wire machine and other need control the equipment and the machinery of yarn tension; Can be to every operating its dynamic tension of all kinds of yarn tests; And when tension force is lower than or surpass setting value, dynamically adjust immediately; So just be controlled at tension fluctuation in the scope of customer requirements, reach each item index of textile industry regulation, increase substantially product quality; And; Also each CPU is connected together with the mode and the host computer computing machine of serial communication, realize processing, demonstration, thereby use and control one group of yarn tension automatic measuring and controlling system synchronously setting, control and the data of each CPU.In addition, adopt brushless DC servomotor and carried out optimal design, every ingot adopts special machines to drive, and about the about 20W of single ingot power of motor, the clean 10W of no-load running power makes the total system energy saving.
Below in conjunction with accompanying drawing and specific embodiment the present invention is done and to describe in further detail.
Description of drawings
Fig. 1 is a present embodiment yarn tension TT&C system structured flowchart.
Embodiment
As shown in Figure 1; A kind of yarn tension TT&C system; Comprise 1,1 CPU2 of 8 tension pick-ups, 8,8 amplifirers 9 of 7,8 D/A converters of 6,1 A/D converter of 5,1 traffic pilot of 4,8 amplifiers of 3,1 controller of 8 torque motors and 1 host computer 11, wherein the input end of each tension pick-up 1 connects the yarn on the silk volume 10 that is attached thereto respectively, and output terminal connects corresponding amplifier 5; After amplifier 5 amplifies the signal of pressure transducer 1 through traffic pilot 6 and A/D converter 7; Arrive CPU2, CPU2 carries out the PID computing with the tension signal that receives and setting value, again control signal is passed through controller 4 successively after; Be transferred to each corresponding D/A converter 8 and amplifirer 9 respectively; Arrive torque motor 3 at last, torque motor 3 acts on the silk volume 10 that is attached thereto according to control signal, makes the yarn tension on the silk volume 10 constant.CPU2 links to each other with host computer 11 through serial communication, receives the yarn tension setting value that host computer 11 sends, and simultaneously, CPU2 also sends actual yarn tension measurement result to host computer 11, is convenient to follow-up of quality.
Said yarn TT&C system comprises several CPU2, and each CPU2 is connected with a plurality of tension pick-ups 1.In the present embodiment, the yarn TT&C system comprises 1 CPU2, and each CPU2 connects 8 tension pick-ups 1.
Said CPU2 adopts the AT89C52 single-chip microcomputer, is the computing and the control center of whole tension measure and control system, according to the increment type PID control algolithm, adopts assembly language to write control program.
Said CPU2 also comprises an external memory 12, is used for the tension value of yarn on each volume 10 that storage system sets, PID controlled variable and some other parameter of each passage.Present embodiment adopts EEPROM2864 as CPU2 external memory 12.
Adopt the RS232 communication modes between host computer 11 and the CPU2.
Said torque motor 3 adopts brushless DC servomotors, and its single ingot rewinding mechanism is controlled separately by built-in small computer, and 1600 rev/mins of rewinding rotating speeds if the yarn fastness is enough, change 5000 rev/mins of scooters.
When above-mentioned yarn tension TT&C system moves; At first measure and show the tension force of silk volume 10 yarns in real time, arrive A/D converter 7 through traffic pilot 6 after tension pick-up 1 signal that each amplifier 5 connects correspondence amplifies, carry out analog to digital conversion through 8 tension pick-ups 1; Digital signal after then will changing sends to CPU2; CPU2 sends to D/A converter 8 through controller 4 after the setting value of tension signal that receives and host computer 11 transmissions is carried out the PID computing again, by D/A converter 8 output analog control voltage signals; Amplify back braking DC torque motor 3 by amplifirer 9 again; Let its constant running, the constant moment of resistance is provided, thereby stabilization filament is rolled up the tension force size on 10 yarns.
The foregoing description and graphic and non-limiting product form of the present invention and style, the those of ordinary skill of any affiliated technical field all should be regarded as not breaking away from patent category of the present invention to its suitable variation or modification of doing.
Claims (6)
1. yarn tension TT&C system; It is characterized in that: comprise tension pick-up, CPU, torque motor, controller, amplifier, traffic pilot, A/D converter, D/A converter, amplifirer and host computer; The yarn on the input end connecting filament of the tension pick-up volume wherein, output terminal connects amplifier, after amplifier amplifies the signal of pressure transducer through traffic pilot and A/D converter; Arrive CPU; CPU carries out the PID computing with tension signal that receives and setting value, again control signal is passed through controller, D/A converter and amplifirer successively, arrives torque motor at last; Torque motor acts on the silk volume according to control signal, makes the yarn tension on the silk volume constant; CPU links to each other with host computer through serial communication.
2. a kind of yarn tension TT&C system as claimed in claim 1 is characterized in that: said yarn tension TT&C system comprises several CPU, and each CPU is connected with several tension pick-ups, amplifier, D/A converter, amplifirer and torque motor.
3. a kind of yarn tension TT&C system as claimed in claim 1 is characterized in that: said CPU adopts the AT89C52 single-chip microcomputer.
4. a kind of yarn tension TT&C system as claimed in claim 1, it is characterized in that: said CPU also comprises an external memory.
5. a kind of yarn tension TT&C system as claimed in claim 1 is characterized in that: host computer and each CPU adopt the RS232 communication modes.
6. a kind of yarn tension TT&C system as claimed in claim 1 is characterized in that: said torque motor adopts brushless DC servomotor, 1600 rev/mins of rewinding rotating speeds.
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| CN2012102461376A CN102749936A (en) | 2012-07-17 | 2012-07-17 | Yarn tension measuring and controlling system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012102461376A CN102749936A (en) | 2012-07-17 | 2012-07-17 | Yarn tension measuring and controlling system |
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| CN102749936A true CN102749936A (en) | 2012-10-24 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103592967A (en) * | 2013-11-20 | 2014-02-19 | 江南大学 | Tension monitoring system of stretching yarn machine |
| CN104150260A (en) * | 2014-07-28 | 2014-11-19 | 四川石棉华瑞电子有限公司 | Aluminum foil running tension detector, aluminum foil running tension regulation set and aluminum foil running tension regulation method |
| CN107190377A (en) * | 2017-07-10 | 2017-09-22 | 江南大学 | The device and method of on-line checking ring throstle spinning tension |
| CN109967809A (en) * | 2019-04-09 | 2019-07-05 | 南京航空航天大学 | A kind of detection of Wire EDM wire electrode tension and LCD image display device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202661894U (en) * | 2012-07-17 | 2013-01-09 | 绍兴文理学院 | Yarn tension measurement and control system |
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2012
- 2012-07-17 CN CN2012102461376A patent/CN102749936A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202661894U (en) * | 2012-07-17 | 2013-01-09 | 绍兴文理学院 | Yarn tension measurement and control system |
Non-Patent Citations (1)
| Title |
|---|
| 孔燕: "八通道自动铺丝张力测控系统方案设计", 《中国优秀硕士学位论文全文数据库 信息科技辑》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103592967A (en) * | 2013-11-20 | 2014-02-19 | 江南大学 | Tension monitoring system of stretching yarn machine |
| CN104150260A (en) * | 2014-07-28 | 2014-11-19 | 四川石棉华瑞电子有限公司 | Aluminum foil running tension detector, aluminum foil running tension regulation set and aluminum foil running tension regulation method |
| CN107190377A (en) * | 2017-07-10 | 2017-09-22 | 江南大学 | The device and method of on-line checking ring throstle spinning tension |
| CN109967809A (en) * | 2019-04-09 | 2019-07-05 | 南京航空航天大学 | A kind of detection of Wire EDM wire electrode tension and LCD image display device |
| CN109967809B (en) * | 2019-04-09 | 2020-12-11 | 南京航空航天大学 | Wire cut electrical discharge machining electrode wire tension detection and LCD image display device |
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Application publication date: 20121024 |