CN102383245A - Weft yarn extension dynamic state measuring system - Google Patents
Weft yarn extension dynamic state measuring system Download PDFInfo
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- CN102383245A CN102383245A CN2011103799987A CN201110379998A CN102383245A CN 102383245 A CN102383245 A CN 102383245A CN 2011103799987 A CN2011103799987 A CN 2011103799987A CN 201110379998 A CN201110379998 A CN 201110379998A CN 102383245 A CN102383245 A CN 102383245A
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- weft yarn
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- length measuring
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Abstract
The invention discloses a weft yarn extension dynamic state measuring system. The weft yarn extension dynamic state measuring system comprises a weaving machine control system, a master control board and a high-resolution encoder which are connected sequentially, and further comprises a weft yarn arrival length measuring system and a weft yarn let-off length measuring system, wherein the weft yarn arrival length measuring system comprises a plurality of detectors uniformly distributed along reed width; photoelectric sensors are mounted on the detectors respectively and are connected with a time data collecting analyzer sequentially; the time data collecting analyzer is connected with a weft yarn arrival amount counter; the weft yarn let-off length measuring system comprises a pair of optical fiber sensors which are connected to a signal processor sequentially; the signal processor is connected with a weft yarn motion analyzer; and the weft yarn motion analyzer is connected with a weft yarn let-off amount counter.
Description
Technical field
The invention belongs to the loom field and relate to a kind of air-jet loom, relate to specifically and a kind ofly be used for measuring wefting insertion process weft yarn and extend dynamic measuring system.
Background technology
The air-jet loom reed width is constantly widened, and the total length of weft yarn flight constantly prolongs, and weft yarn flight is divided into free flight and constraint mission phase, and in the free flight stage, weft yarn becomes relaxed state, and weft tension is very little; In the constrained flight stage, weft yarn becomes tensioning state, and weft tension raises, and weft yarn extends because of tensioning, requires the characteristic of understanding and improve yarn flight from the extension and the length aspect of weft yarn.
Air-jet loom utilizes jet-stream wind as the wefting insertion carrier, and jet-stream wind is drawing weft yarn and leaping reed width.The form of weft yarn flight carries out the transition to tensioning from relaxing, and extends because of tensioning at the later stage weft yarn that flies.Therefore, measure in the wefting insertion process the wefting insertion curve with send the latitude curve, leap reed width with weft yarn, weft yarn arrival amount and send the difference between the latitude amount progressively to draw back, the distance of drawing back equals the elongation of weft yarn.Measurement helps the weft yarn elongation of understanding at different mission phases, the relation of weft yarn elongation and time, reed width position.
The early metaphase free flight stage of weft yarn flight, send the latitude curve to overlap basically with the wefting insertion curve, weft yarn does not have elongation or very little elongation.In the constrained flight stage in late period of weft yarn flight, weft yarn is tensioning progressively, and weft yarn progressively stretches and drawing-off, send between latitude curve and the wefting insertion curve apart from progressively drawing back.
In the prior art; On the component configuration in addition of air-jet loom; Have and visit the latitude measurement mechanism, but this bobbin feeler just is arranged in outside the cloth width of cloth, catch the latitude side at the left entry side of special-shaped reed or right-hand member; Be used to find out weft yarn and have or not the arrival detection position, the detection of this kind mode can not be understood the characteristic of weft yarn in the motion.
Summary of the invention
Not enough for overcoming in the prior art, of the present invention aiming to provide.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the present invention realizes through following technical scheme:
A kind of weft yarn elongation dynamic measurement system; Comprise loom control system, master board and high resolution encoder; Said high resolution encoder connects said master board, and said master board connects said loom control system, comprises that also a weft yarn arrives length measuring system and a weft yarn is seen length measuring system off; Said weft yarn arrives length measuring system and comprises that some covers are along the equally distributed detector of reed width; Be separately installed with photoelectric sensor on described some cover detectors, described some cover photoelectric sensors are connected to a time data collection and analysis device successively, and said time data collection analysis device connects a weft yarn arrival amount calculator; Said weft yarn is seen length measuring system off and is comprised a pair of Fibre Optical Sensor that is separately positioned on main burner afterbody and exit; Described a pair of Fibre Optical Sensor is connected to a signal processor successively; Said signal processor connects a weft yarn motion analyzer, and said weft yarn motion analyzer connects a weft yarn sendout calculator; Said master board also is connected with said photoelectric sensor, Fibre Optical Sensor, time data collection analysis device and signal processor in turn.
Operation principle of the present invention is following:
Detector is installed on the last reed beam of special-shaped reed, and the photoelectricity that is uniformly distributed with some groups of detectors along reed width is visited the latitude head, and the measurement data of record some spots is measured same weft yarn leaps diverse location under same wefting insertion condition time data.Measure the time of each position of weft yarn leading end arrival reed width, measure the time relation curve that the weft yarn leading end arrives length and flight exactly.
When light emitting diode sends infrared light, photocell is accepted light, and when the weft yarn leading end arrived the overlay area of detector, acknowledge(ment) signal produced a pulse, produces a pulse and representes the arrival of weft yarn leading end.Measurement mechanism has functions such as input, signal amplification and signal judgement.Yarn arrives measurement mechanism and measures the moment that weft yarn arrives each detector; By several positions, retaining yarn pin position and the main jet exit position at detector place, the time of taking off yarn and shelves yarn of retaining yarn pin etc.; Calculate weft yarn arrival amount and corresponding time relation, promptly flight time-the wefting insertion length curve.During measurement with yarn time of taking off of retaining yarn pin as zero point.
Weft yarn unwinding from the weft accumulator gets into the main burner afterbody, gets into the reed groove from main burner again, from the weft yarn amount of main burner core pipe process as the weft yarn sendout.Therefore in the afterbody and the exit of main burner a Fibre Optical Sensor is installed respectively, to find out the motion of weft yarn.The change of frequency of the weft yarn reflected signal that obtains from two Fibre Optical Sensors is judged the motion state of weft yarn, as long as the weft yarn setting in motion calculates weft yarn then and sees length off.By the position at Fibre Optical Sensor sensor place, the data such as time of taking off yarn and shelves yarn of keeping off yarn pin position, retaining yarn pin, calculate weft yarn sendout and corresponding time relation.During measurement with yarn time of taking off of retaining yarn pin as zero point.
Compared with prior art, the present invention has following beneficial effect:
Weft yarn of the present invention elongation dynamic measurement system is that air-jet loom provides that weft yarn extends dynamic measuring method in a kind of measurement wefting insertion process; Can measure the weft yarn leading end easily and when arrive each position in the wefting insertion groove; Measure weft yarn and when pass through, for each technological parameter of formulating air-jet loom provides the measured data foundation from the main burner core.
Above-mentioned explanation only is the general introduction of technical scheme of the present invention, understands technological means of the present invention in order can more to know, and can implement according to the content of specification, below with preferred embodiment of the present invention and conjunction with figs. detailed description.The specific embodiment of the present invention is provided by following examples and accompanying drawing thereof in detail.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the frame principles figure of weft yarn elongation dynamic measurement system of the present invention.
Fig. 2 is for seeing the frame principles figure of measurement of length device among Fig. 1 off for the weft yarn of expression.
Fig. 3 is the frame principles figure of Fibre Optical Sensor of the present invention.
Fig. 4 is the frame principles figure of photoelectric sensor of the present invention.
Fig. 5 is the structural representation of detector of the present invention.
The wefting insertion curve that Fig. 6 measures for weft yarn of the present invention elongation dynamic measurement system with send the latitude curve relation figure.
Label declaration among the figure: 1, loom control system, 2, master board, 3, high resolution encoder, 4, time data collection analysis device, 5, weft yarn arrival amount calculator; 6, signal processor, 7, the weft yarn motion analyzer, 8, weft yarn sendout calculator, 9, detector; 901, footstock, 902, the back detecting plate, 903, preceding detecting plate, 10, photoelectric sensor; 11, Fibre Optical Sensor, 12, computer, 13, light emitting diode, 14, luminous source optical fiber; 15, first lens, 16, second lens, 17, receive light optical fiber, 18, photocell.
The specific embodiment
Below with reference to accompanying drawing and combine embodiment, specify the present invention.
Referring to Fig. 1, shown in Figure 2; A kind of weft yarn elongation dynamic measurement system; Comprise loom control system 1, master board 2 and high resolution encoder 3; Said high resolution encoder 3 connects said master board 2, and said master board 2 connects said loom control system 1, comprises that also a weft yarn arrives length measuring system and a weft yarn is seen length measuring system off; Said weft yarn arrives length measuring system and comprises that some covers are along the equally distributed detector 9 of reed width; Be separately installed with photoelectric sensor 10 on described some cover detectors 9, described some cover photoelectric sensors 10 are connected to a time data collection and analysis device 4 successively, and said time data collection analysis device 4 connects a weft yarn arrival amount calculator 5; Said weft yarn is seen length measuring system off and is comprised a pair of Fibre Optical Sensor 11 that is separately positioned on main burner afterbody and exit; Described a pair of Fibre Optical Sensor 11 is connected to a signal processor 6 successively; Said signal processor 6 connects a weft yarn motion analyzer 7, and said weft yarn motion analyzer 7 connects a weft yarn sendout calculator 8; Said master board 2 also is connected with said photoelectric sensor 10, Fibre Optical Sensor 11, time data collection analysis device 4 and signal processor 6 in turn.
Referring to shown in Figure 3, said Fibre Optical Sensor 11 comprises a light emitting diode 13, and said light emitting diode 13 connects one first lens 15 through a luminous source optical fiber 14; Said Fibre Optical Sensor 11 also comprises a photocell 18, and said photocell 18 receives light optical fiber 17 to connect one second lens 16 through one.
Referring to shown in Figure 4, said photoelectric sensor 10 comprises a light emitting diode 13, and the emission light path of said light emitting diode 13 is provided with one first lens 15; Said photoelectric sensor 11 also comprises a photocell 18, and the receiving light path of said photocell 18 is provided with one second lens 15.
Referring to shown in Figure 5; Said detector 9 comprises a footstock 901; One end of said footstock 901 is fixed with back detecting plate 902, and with afterwards detecting plate 902 usefulness locked with bolts are on reed beam on the special-shaped reed, the other end of said footstock 901 is fixed with preceding detecting plate 903 to said detector 9 through its footstock 901; The lower end of detecting plate 903 is fixed with said photoelectric sensor 11 before said, and said photoelectric sensor 11 is fixed on the said preceding detecting plate 903.
Preferably, said weft yarn arrival length measuring system comprises that 10 covers are along the equally distributed detector 9 of reed width.
Preferably, said weft yarn arrival amount calculator 5 is connected to a computer 12 respectively with weft yarn sendout calculator 8.
Referring to shown in Figure 6, represent the wefting insertion curve and send the latitude curve relation figure that sending the latitude curve is weft yarn sendout curve; Weft yarn unwinding from the weft accumulator; Be introduced into the main burner afterbody, get into the reed groove from main burner again, with from the weft yarn amount of main burner core pipe process as the weft yarn sendout.The wefting insertion curve is the curve that weft yarn leaps reed width, and abscissa is a wefting insertion length, and ordinate is the time that arrives each position of reed groove.The wefting insertion curve is that weft yarn arrives discharge curve.
Before wefting insertion length 125cm, be the early metaphase free flight stage of weft yarn flight, weft yarn becomes relaxed state, and weft tension is very little.Can be known that by Fig. 6 the latitude curve that send in free flight stage overlaps with the wefting insertion curve basically, weft yarn does not have elongation or very little elongation.Behind wefting insertion length 125cm, in the constrained flight stage in late period of weft yarn flight, weft yarn is tensioning progressively, and weft yarn progressively extends, and can be known the sending between latitude curve and the wefting insertion curve apart from progressively drawing back of weft yarn mission phase by Fig. 6.The distance of drawing back equals the elongation of weft yarn.
The above is merely preferred case study on implementation of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. a weft yarn extends dynamic measurement system; Comprise loom control system (1), master board (2) and high resolution encoder (3); Said high resolution encoder (3) connects said master board (2); Said master board (2) connects said loom control system (1); It is characterized in that: comprise that also a weft yarn arrives length measuring system and a weft yarn is seen length measuring system off, said weft yarn arrives length measuring system and comprises that some covers along the equally distributed detector of reed width (9), are separately installed with photoelectric sensor (10) on described some cover detectors (9); Described some cover photoelectric sensors (10) are connected to a time data collection and analysis device (4) successively, and said time data collection analysis device (4) connects a weft yarn arrival amount calculator (5); Said weft yarn is seen length measuring system off and is comprised a pair of Fibre Optical Sensor (11) that is separately positioned on main burner afterbody and exit; Described a pair of Fibre Optical Sensor (11) is connected to a signal processor (6) successively; Said signal processor (6) connects a weft yarn motion analyzer (7), and said weft yarn motion analyzer (7) connects a weft yarn sendout calculator (8); Said master board (2) also is connected with said photoelectric sensor (10), Fibre Optical Sensor (11), time data collection analysis device (4) and signal processor (6) in turn.
2. weft yarn elongation dynamic measurement system according to claim 1, it is characterized in that: said weft yarn arrival amount calculator (5) and weft yarn sendout calculator (8) are connected to a computer (12) respectively.
3. weft yarn elongation dynamic measurement system according to claim 1 and 2 is characterized in that: said weft yarn arrives length measuring system and comprises that 10 covers are along the equally distributed detector of reed width (9).
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| CN 201110379998 CN102383245B (en) | 2011-11-25 | 2011-11-25 | Weft yarn extension dynamic state measuring system |
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| CN 201110379998 CN102383245B (en) | 2011-11-25 | 2011-11-25 | Weft yarn extension dynamic state measuring system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015094059A (en) * | 2013-11-14 | 2015-05-18 | 株式会社豊田自動織機 | Weft detection device of air-jet machine |
| CN105088496A (en) * | 2014-05-13 | 2015-11-25 | 株式会社丰田自动织机 | Weft yarn detection device in air-jet loom |
| JP2016186144A (en) * | 2015-03-27 | 2016-10-27 | 株式会社豊田自動織機 | Weft detection device of air-jet machine |
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| JPH055245A (en) * | 1991-06-28 | 1993-01-14 | Toyota Autom Loom Works Ltd | Method for measuring length of weft yarn in jet loom |
| CN101463525A (en) * | 2008-11-28 | 2009-06-24 | 江苏万工科技集团有限公司 | Measuring device for weft leading end motion state in weft insertion of air jet loom |
| CN101676459A (en) * | 2008-08-18 | 2010-03-24 | 意达（瑞士）有限公司 | Method and apparatus for operating a loom |
| EP1630272B1 (en) * | 2004-08-30 | 2010-11-10 | Tsudakoma Kogyo Kabushiki Kaisha | Weft brake device and method for controlling a weft brake device |
| CN202359287U (en) * | 2011-11-25 | 2012-08-01 | 江苏万工科技集团有限公司 | Dynamic weft extension measuring system |
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2011
- 2011-11-25 CN CN 201110379998 patent/CN102383245B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH055245A (en) * | 1991-06-28 | 1993-01-14 | Toyota Autom Loom Works Ltd | Method for measuring length of weft yarn in jet loom |
| EP1630272B1 (en) * | 2004-08-30 | 2010-11-10 | Tsudakoma Kogyo Kabushiki Kaisha | Weft brake device and method for controlling a weft brake device |
| CN101676459A (en) * | 2008-08-18 | 2010-03-24 | 意达（瑞士）有限公司 | Method and apparatus for operating a loom |
| CN101463525A (en) * | 2008-11-28 | 2009-06-24 | 江苏万工科技集团有限公司 | Measuring device for weft leading end motion state in weft insertion of air jet loom |
| CN202359287U (en) * | 2011-11-25 | 2012-08-01 | 江苏万工科技集团有限公司 | Dynamic weft extension measuring system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015094059A (en) * | 2013-11-14 | 2015-05-18 | 株式会社豊田自動織機 | Weft detection device of air-jet machine |
| CN104630976A (en) * | 2013-11-14 | 2015-05-20 | 株式会社丰田自动织机 | Air-jet loom with weft yarn detector |
| CN104630976B (en) * | 2013-11-14 | 2016-05-25 | 株式会社丰田自动织机 | For the weft detector of air-jet loom |
| CN105088496A (en) * | 2014-05-13 | 2015-11-25 | 株式会社丰田自动织机 | Weft yarn detection device in air-jet loom |
| CN105088496B (en) * | 2014-05-13 | 2017-04-12 | 株式会社丰田自动织机 | Weft yarn detection device in air-jet loom |
| JP2016186144A (en) * | 2015-03-27 | 2016-10-27 | 株式会社豊田自動織機 | Weft detection device of air-jet machine |
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| CN102383245B (en) | 2013-06-05 |
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Effective date of registration: 20160720 Address after: 215223 Jiangsu Province, Wujiang District of Suzhou City Heng Shan Zhen Wan Ping Road Development Patentee after: Wujiang Wan Gong mechanical & electronic equipment corporation, Ltd Address before: 215223 Jiangsu Province, Wujiang city Suzhou Wanping City Development Road No. 108 Patentee before: Jiangsu Wangong Science and Technology Group Co., Ltd. |