CN102383245B - Weft yarn extension dynamic state measuring system - Google Patents
Weft yarn extension dynamic state measuring system Download PDFInfo
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- CN102383245B CN102383245B CN 201110379998 CN201110379998A CN102383245B CN 102383245 B CN102383245 B CN 102383245B CN 201110379998 CN201110379998 CN 201110379998 CN 201110379998 A CN201110379998 A CN 201110379998A CN 102383245 B CN102383245 B CN 102383245B
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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 a kind of for measuring the dynamic measuring system of wefting insertion process weft yarn elongation.
Background technology
The air-jet loom reed width is constantly widened, and the total length of weft yarn flight constantly extends, 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 to understand and improve from the extension of weft yarn and length aspect the characteristic of yarn flight.
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 is transitioned into tensioning from relaxing, and extends because of tensioning at the later stage weft yarn that flies.Therefore, measure the Rapier Movement in the wefting insertion process and send the latitude curve, leaping reed width with weft yarn, weft yarn arrival amount and send the difference between the latitude amount progressively to pull open, the distance of pulling open 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 substantially to overlap with Rapier Movement, 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 Rapier Movement apart from progressively pulling open.
In the prior art, on the another component configuration of air-jet loom, the latitude of spy measurement mechanism is arranged, but this bobbin feeler just is arranged in outside the cloth width, catch the latitude side at the left entry side of special-shaped reed or right-hand member, be used for finding out weft yarn and have or not and arrive the detection position, the detection of this kind mode can not be understood the characteristic of weft yarn in motion.
Summary of the invention
Not enough for overcoming in prior art, of the present invention aim to provide a kind of for measuring the dynamic measuring system of wefting insertion process weft yarn elongation.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the present invention is achieved through the following technical solutions:
a kind of Weft yarn extension dynamic state measuring system, comprise loom control system, master board and high resolution encoder, described high resolution encoder connects described master board, described master board connects described loom control system, comprise that also a weft yarn arrives length measuring system and a weft yarn is sent length measuring system, described 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, described time data collection analysis device connects a weft yarn arrival amount calculator, described weft yarn is sent length measuring system 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, described signal processor connects a weft yarn motion analyzer, and described weft yarn motion analyzer connects a weft yarn sendout calculator, described master board also is connected with described photoelectric sensor, Fibre Optical Sensor, time data collection analysis device and signal processor in turn.
Operation principle of the present invention is as follows:
Detector is arranged on the upper reed beam of special-shaped reed, visits the latitude head along the photoelectricity of the uniform some groups of detectors of reed width, records the measurement data of several points, measures same weft yarn and leap the time data of diverse location under same wefting insertion condition.Measure the time of each position of weft yarn leading end arrival reed width, measure exactly the relation curve that the weft yarn leading end arrives the time of length and flight.
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 represents the arrival of weft yarn leading end.Measurement mechanism has the functions such as signal detection, signal amplification and signal judgement.Yarn arrives measurement mechanism and measures the moment that weft yarn arrives each detector, by time of taking off yarn and shelves yarn of several positions at detector place, gear yarn pin position and main jet exit position, gear yarn pin etc., calculate the relation of weft yarn arrival amount and corresponding time, i.e. flight time-the wefting insertion length curve.During measurement with yarn time of taking off of gear yarn pin as zero point.
Weft yarn unwinding from the weft accumulator enters the main burner afterbody, then enters the reed groove from main burner, from the weft yarn amount of main burner core pipe process as the weft yarn sendout.Therefore in afterbody and the exit of main burner, a Fibre Optical Sensor is installed respectively, to find out the motion of weft yarn.The motion state of the change of frequency judgement weft yarn of the weft yarn reflected signal that obtains from two Fibre Optical Sensors is as long as then the weft yarn setting in motion calculates weft yarn and send length.By the data such as time of taking off yarn and shelves yarn of the position at Fibre Optical Sensor sensor place, gear yarn pin position, gear yarn pin, calculate the relation of weft yarn sendout and corresponding time.During measurement with yarn time of taking off of gear yarn pin as zero point.
Compared with prior art, the present invention has following beneficial effect:
Weft yarn extension dynamic state measuring system of the present invention provides the dynamic measuring method of weft yarn elongation in a kind of measurement wefting insertion process for air-jet loom, can measure easily the weft yarn leading end and when arrive each position in the wefting insertion groove, measure weft yarn and when pass through from the main burner core, for each technological parameter of formulating air-jet loom provides the measured data foundation.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, below with preferred embodiment of the present invention and coordinate accompanying drawing to describe in detail.The specific embodiment of the present invention is provided in detail by following examples and accompanying drawing thereof.
Description of drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, consists of the application's a part, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is the frame principle of Weft yarn extension dynamic state measuring system of the present invention.
Fig. 2 sends the frame principle of measurement of length device for the weft yarn of expression in Fig. 1.
Fig. 3 is the frame principle of Fibre Optical Sensor of the present invention.
Fig. 4 is the frame principle of photoelectric sensor of the present invention.
Fig. 5 is the structural representation of detector of the present invention.
Fig. 6 is the Rapier Movement that measures of Weft yarn extension dynamic state measuring system of the present invention and send the latitude curve relation figure.
Number in the figure explanation: 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, rear detecting plate, 903, front detecting plate, 10, photoelectric sensor, 11, Fibre Optical Sensor, 12, computer, 13, light emitting diode, 14, luminous source optical fiber, 15, first lens, the 16, second lens, 17, be subjected to light optical fiber, 18, photocell.
The specific embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail.
referring to Fig. 1, shown in Figure 2, a kind of Weft yarn extension dynamic state measuring system, comprise loom control system 1, master board 2 and high resolution encoder 3, described high resolution encoder 3 connects described master board 2, described master board 2 connects described loom control system 1, comprise that also a weft yarn arrives length measuring system and a weft yarn is sent length measuring system, described 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, described time data collection analysis device 4 connects a weft yarn arrival amount calculator 5, described weft yarn is sent length measuring system 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, described signal processor 6 connects a weft yarn motion analyzer 7, and described weft yarn motion analyzer 7 connects a weft yarn sendout calculator 8, described master board 2 also is connected with described photoelectric sensor 10, Fibre Optical Sensor 11, time data collection analysis device 4 and signal processor 6 in turn.
Shown in Figure 3, described Fibre Optical Sensor 11 comprises a light emitting diode 13, and described light emitting diode 13 connects a first lens 15 by a luminous source optical fiber 14; Described Fibre Optical Sensor 11 also comprises a photocell 18, and described photocell 18 is subjected to light optical fiber 17 to connect one second lens 16 by one.
Shown in Figure 4, described photoelectric sensor 10 comprises a light emitting diode 13, is provided with a first lens 15 on the emission light path of described light emitting diode 13; Described photoelectric sensor 11 also comprises a photocell 18, is provided with one second lens 15 on the receiving light path of described photocell 18.
Shown in Figure 5, described detector 9 comprises a footstock 901, one end of described footstock 901 is fixed with rear detecting plate 902, described detector 9 by its footstock 901 and rear detecting plate 902 use locked with bolts on the upper reed beam of special-shaped reed, the other end of described footstock 901 is fixed with front detecting plate 903, the lower end of described front detecting plate 903 is fixed with described photoelectric sensor 11, and described photoelectric sensor 11 is fixed on described front detecting plate 903.
Preferably, described weft yarn arrival length measuring system comprises that 10 covers are along the equally distributed detector 9 of reed width.
Preferably, described weft yarn arrival amount calculator 5 and weft yarn sendout calculator 8 are connected to respectively a computer 12.
Shown in Figure 6, represent Rapier Movement and send the latitude curve relation figure, sending the latitude curve is weft yarn sendout curve, weft yarn unwinding from the weft accumulator, be introduced into the main burner afterbody, then enter the reed groove from main burner, with from the weft yarn amount of main burner core pipe process as the weft yarn sendout.Rapier Movement is the curve that weft yarn leaps reed width, and abscissa is wefting insertion length, and ordinate is the time that arrives each position of reed groove.Rapier Movement 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.As shown in Figure 6, the latitude curve that send in free flight stage overlaps substantially with Rapier Movement, and weft yarn does not have elongation or very little elongation.After 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 as shown in Figure 6, the distance of sending between latitude curve and Rapier Movement of weft yarn mission phase is progressively pulled open.The distance of pulling open equals the elongation of weft yarn.
The above is only 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 modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (3)
1. Weft yarn extension dynamic state measuring system, comprise loom control system (1), master board (2) and high resolution encoder (3), described high resolution encoder (3) connects described master board (2), described master board (2) connects described loom control system (1), it is characterized in that: comprise that also a weft yarn arrives length measuring system and a weft yarn is sent length measuring system, described weft yarn arrives length measuring system and comprises that some covers are along the equally distributed detector of reed width (9), 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, described time data collection analysis device (4) connects a weft yarn arrival amount calculator (5), described weft yarn is sent length measuring system 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, described signal processor (6) connects a weft yarn motion analyzer (7), and described weft yarn motion analyzer (7) connects a weft yarn sendout calculator (8), described master board (2) also is connected with described photoelectric sensor (10), Fibre Optical Sensor (11), time data collection analysis device (4) and signal processor (6) in turn.
2. Weft yarn extension dynamic state measuring system according to claim 1, it is characterized in that: described weft yarn arrival amount calculator (5) and weft yarn sendout calculator (8) are connected to respectively a computer (12).
3. Weft yarn extension dynamic state measuring system according to claim 1 and 2 is characterized in that: described 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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| JP6190250B2 (en) * | 2013-11-14 | 2017-08-30 | 株式会社豊田自動織機 | Weft detection device for air jet loom |
| JP5999136B2 (en) * | 2014-05-13 | 2016-09-28 | 株式会社豊田自動織機 | Weft detection device in air jet loom |
| JP6367784B2 (en) * | 2015-03-27 | 2018-08-01 | 株式会社豊田自動織機 | Weft detection device for air jet loom |
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| JP2929775B2 (en) * | 1991-06-28 | 1999-08-03 | 株式会社豊田自動織機製作所 | Weft length measurement method in jet loom |
| JP2006063498A (en) * | 2004-08-30 | 2006-03-09 | Tsudakoma Corp | Method for controlling weft yarn-braking device and weft yarn-braking device |
| EP2157218A1 (en) * | 2008-08-18 | 2010-02-24 | ITEMA (Switzerland) Ltd. | Method and device for operating a loom |
| CN101463525B (en) * | 2008-11-28 | 2010-12-22 | 江苏万工科技集团有限公司 | Measuring apparatus for weft yarn leading-end motion state of air-jet loom inserting weft |
| 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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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. |