CN101463525A - Measuring apparatus for weft yarn leading-end motion state of air-jet loom inserting weft - Google Patents
Measuring apparatus for weft yarn leading-end motion state of air-jet loom inserting weft Download PDFInfo
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- CN101463525A CN101463525A CNA2008101363558A CN200810136355A CN101463525A CN 101463525 A CN101463525 A CN 101463525A CN A2008101363558 A CNA2008101363558 A CN A2008101363558A CN 200810136355 A CN200810136355 A CN 200810136355A CN 101463525 A CN101463525 A CN 101463525A
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Abstract
The invention relates to a device for measuring the motion state of a weft yarn leading end when an air-jet loom does weft insertion, which comprises a plurality of photoelectric weft feeling heads, a measurer, a weft insertion motion curve analyzer and a main control panel; the reached weft yarn is collected by arranging the photoelectric weft feeling heads on a profiled steel reed, and the motion moment and speed data of weft yarn at all the collecting points can be obtained by using the measurer for processing the collected information combining level yarn pin position and the data at the outlet position of a main nozzle. The moment and speed data is analyzed by the weft insertion motion curve analyzer, thus the control panel controls the action time of the level yarn pin, the main nozzle and an auxiliary nozzle.
Description
Technical field
The present invention relates to air-jet loom, the device that the weft yarn motion state is measured when relating in particular to the air-jet loom wefting insertion.
Background technology
The used in jet loom air-flow is realized wefting insertion, and the gaseous blast of a plurality of pilot jets of arranging along reed width forms weft tracting flow, and the wefting insertion technology is that pilot jet sprays successively, and each injection of each pilot jet continues for some time, and forms jet-stream wind.One minute wefting insertion of air-jet loom 800 times, each wefting insertion process, weft yarn flies through shed open once, and the weft yarn flying speed reaches 100 meters/minute.Have only weft yarn flying speed height, just can reach 800-1000 rev/mins of high speeds of loom.Stable for reaching wefting insertion, must understand the total time that weft yarn leaps shed open, must understand weft yarn and arrive interior time of wefting insertion groove along each position of reed width, understand the state of weft yarn in the wefting insertion process particularly.
Summary of the invention
The object of the invention just provides a kind of device that the weft yarn motion state is measured can be to wefting insertion the time.
In order to reach the foregoing invention purpose, technical scheme of the present invention is: a kind of measurement mechanism of weft yarn leading-end motion state of air-jet loom inserting weft, described air-jet loom weft insertion system comprises weft accumulator, be arranged on the shelves yarn pin that is used to control yarn on the weft accumulator and discharges, profiled steel reed, a plurality of pilot jets, the air-flow organization of supply arranged with the corresponding main burner of described profiled steel reed shed open, along reed width, described profiled steel reed is made up of a plurality of reed wires, and the reed that each reed wire is formed is plugged in the slay, and described measurement mechanism comprises
A plurality of photoelectricity are visited the latitude head, described a plurality of photoelectricity is visited the latitude head and is distributed along reed width, each photoelectricity visit latitude head comprise light emitting diode, with the photocell that light emitting diode is in a straight line, described photoelectricity is visited the latitude head and is used to gather the weft yarn information that arrives its place, position and converts signal of telecommunication output to;
Measuring appliance, described measuring appliance is connected with the output that described each photoelectricity is visited the latitude head, and described measuring appliance is used to receive, amplify described each photoelectricity and visits the output signal of latitude head and determine that in conjunction with shelves yarn pin position, main burner exit position weft yarn arrives the moment and speed that each photoelectricity is visited latitude head position;
The motion of weft-insertion curve analyzer, described motion of weft-insertion curve analyzer is connected with the output of measuring appliance, and described motion of weft-insertion curve analyzer is handled according to the data of described measuring appliance output;
Master control borad, described master control borad are connected between motion of weft-insertion curve analyzer and the air-flow organization of supply, the actuation time of described master control borad control shelves yarn pin, main burner, pilot jet.
Further, it is 10～15 that described photoelectricity is visited the latitude head, and described each photoelectricity spy latitude head evenly distributes along profiled steel reed.
Described photoelectricity is visited the latitude head and is also comprised the detection frame that is installed on the reed wire, and described light emitting diode and photocell are separately positioned on this detection frame.
Described motion of weft-insertion curve analyzer is handled the data of detector output and is depicted as time-displacement or/and speed-displacement curve shows, because the used in jet loom air-flow is realized wefting insertion, the time-displacement curve of weft yarn leading end flight is the kinematic fundamental curve of weft yarn.
Because the utilization of technique scheme, the present invention has following advantage: the present invention gathers the arrival of weft yarn by photoelectricity spy latitude head is set on profiled steel reed, thereby and by measuring appliance the information of gathering is handled in conjunction with shelves yarn pin position and main burner exit position data and to be drawn constantly and speed data in the weft yarn motion at each place, collection point, these moment and speed data are carried out analyzing and processing by the motion of weft-insertion curve analyzer again, thus the actuation time of a control panel control shelves yarn pin, main burner, pilot jet.
Description of drawings
Accompanying drawing 1 is measurement mechanism structural principle schematic diagram of the present invention;
Accompanying drawing 2 is visited the structural representation of latitude head for photoelectricity of the present invention;
Accompanying drawing 3 is measuring appliance of the present invention and analyzer signal processing logic analysis chart;
Wherein: 1, weft accumulator; 4, profiled steel reed; 41, reed wire; 42, slay; 3, main burner; 2, pilot jet; 5, air-flow organization of supply; 51, electromagnetic valve; 52, source of the gas; 6, photoelectricity is visited the latitude head; 61, light emitting diode; 62, photocell; 63, survey frame; 7, measuring appliance; 8, motion of weft-insertion curve analyzer; 9, master control borad; 10, motor.
The specific embodiment
Below in conjunction with accompanying drawing the preferred embodiment of the invention is elaborated.
Air-jet loom is finished the action of weft yarn being squeezed into shed open by the system of beating up, and weft yarn is flown in shed open by weft insertion system, and final process by shed open, the system of beating up mainly comprises main shaft, jointed gear unit, parts such as rocker, main shaft is done 360 degree revolutions, weft insertion system mainly comprises weft accumulator, shelves yarn pin, main burner, pilot jet and the air-flow organization of supply that air-flow is provided for above-mentioned main burner and pilot jet, profiled steel reed, detailed process can be sketched and be: at first weft yarn is drawn by the bobbin unwinding, through tensioner, thread-carrier, twist in advance on the length measuring weft storing device, utilize compressed air to spray from main burner equably after the unwinding from rousing on the face then with containing a certain amount of weft yarn on the weft accumulator, enter in the special-shaped reed groove, in special-shaped reed groove, by assisting the relay air-flow effect that nozzle is ejected, weft yarn is flown in shed open, finally, finish wefting insertion by shed open.
Fig. 1 shows the part-structure of weft insertion system, comprise weft accumulator 1, main burner 3, a plurality of pilot jet 2, profiled steel reed 4 and air-flow organization of supply 5, wherein, profiled steel reed 4 is arranged in order by a plurality of reed wires 41 to be formed, and the reed that each reed wire 41 is formed is plugged in the slay 42, and air-flow organization of supply 5 comprises electromagnetic valve 51, source of the gas 52; Weft accumulator 1 is provided with a grade yarn pin, and shelves yarn pin is used to control the release of yarn, and weft accumulator 1 is connected with group yarn device, dials the yarn device and drives by motor 10.
The device of weft yarn motion state comprised a plurality of photoelectricity spy latitude heads 6 when the present invention was used to measure wefting insertion, each photoelectricity is visited latitude head 6 and is distributed along reed width, as shown in Figure 2, each is visited latitude head and comprises the detection frame 43 that is installed on the slay 42, is arranged on light emitting diode 61, the photocell 62 surveyed on the frame 43, and described photocell 62 is in a straight line with light emitting diode 61.Photoelectricity is visited latitude head 6 numbers can be provided with 10～15, in the present embodiment, along reed width 10 described photoelectricity is set evenly distributedly and visits the latitude head.
Visiting latitude head 6 outputs with each photoelectricity links to each other and is connected to measuring appliance 7, this measuring appliance 7 has signal detection, signal amplifies and the signal arbitration functions, when weft yarn arrives the position of each photoelectricity spy latitude head 6, light emitting diode 61 sends infrared light, photocell 62 receives light, photoelectricity is visited latitude head 6 will produce a pulse signal, this pulse signal amplifies by measuring appliance 7, simultaneously, measuring appliance 7 calculates the moment and speed that weft yarn arrives each detector according to position, shelves yarn pin position and the main burner exit position at each photoelectricity spy latitude head 6 place.
In order to access weft yarn leading end curve movement, this device also is provided with motion of weft-insertion curve analyzer 8, the input of this motion of weft-insertion curve analyzer 8 is connected with the output of described measuring appliance 7, motion of weft-insertion curve analyzer 8 discharges the starting moment that yarn is weft yarn flight constantly with shelves yarn pin position, the moment of visiting latitude head 6 measurement weft yarns arrival photoelectricity spy latitude head installation sites is t, and the difference DELTA t in two moment is the weft yarn flight time that arrives this photoelectricity spy latitude head installation site.The installation site of visiting the latitude head from photoelectricity to the distance of main jet outlet can push away the weft yarn flying distance.Determine the statistical property of wefting insertion as calculated, wefting insertion number of times and calculate by the wefting insertion number of times and to arrive the time average of respectively visiting latitude head position, and standard deviation.Analyzer is depicted as t (S) time-displacement curve after data are handled, V (S) speed-displacement curve shows.Simultaneously, motion of weft-insertion curve analyzer 8 also has set-up function, comprise air flow jetting timing and the auxilliary gas bag source of the gas air pressure of setting the timing of shelves yarn pin, the air flow jetting timing of main burner, main gas bag source of the gas air pressure, auxilliary nozzle, set time window and calculating, the drafting motion of weft-insertion curve etc. of finding lost pick.
Between motion of weft-insertion curve analyzer 8 and electromagnetic valve 51, also be provided with master control borad 9, the actuation time of master control borad 9 control shelves yarn pins, main burner, pilot jet.
Fig. 3 is described to be the logic analysis figure of weft yarn due in measuring appliance, and when weft yarn was visited the monitored area of latitude head by photoelectricity, analog signals generated square wave through amplification with after handling.Write down synchronous triggering signal simultaneously.Be set in retaining yarn pin position and discharge the starting moment that the moment is weft yarn flight, visit the latitude head and measure the moment t that weft yarn arrival photoelectricity is visited latitude head installation site, the difference △ t in two moment is the flight time that weft yarn arrives this position.The installation site of visiting the latitude head from photoelectricity to the distance of main jet outlet can push away the weft yarn flying distance, can calculate speed by time and flying distance.Determine the statistical property of wefting insertion as calculated, wefting insertion number of times and calculate to arrive by the wefting insertion number of times and respectively visit the time of latitude head position and the average of speed, and standard deviation.
Claims (5)
1, a kind of measurement mechanism of weft yarn leading-end motion state of air-jet loom inserting weft, described air-jet loom weft insertion system comprises weft accumulator (1), be arranged on and be used to control the shelves yarn pin that yarn discharges on the weft accumulator (1), profiled steel reed (4), with the corresponding main burner of described profiled steel reed (2) wefting insertion groove (3), a plurality of pilot jets (2) along the reed width arrangement, air-flow organization of supply (5), described profiled steel reed (4) is made up of a plurality of reed wires (41), and the reed that each reed wire (41) is formed is plugged in the slay (42), and it is characterized in that: described measurement mechanism comprises
A plurality of photoelectricity are visited latitude head (6), described a plurality of photoelectricity is visited latitude head (6) and is distributed along reed width, each photoelectricity visit latitude head (6) comprise light emitting diode (61), with the photocell (62) that light emitting diode (61) is in a straight line, described photoelectricity is visited latitude head (6) and is used to gather the weft yarn information that arrives its place, position and converts signal of telecommunication output to;
Measuring appliance (7), described measuring appliance (7) is connected with the output that described each photoelectricity is visited latitude head (6), and described measuring appliance (7) is used for receiving, amplifying described each photoelectricity and visits the output signal of latitude head (6) and determine that in conjunction with shelves yarn pin position, main burner (3) exit position weft yarn arrives the moment and speed that each photoelectricity is visited latitude head (6);
Motion of weft-insertion curve analyzer (8), described motion of weft-insertion curve analyzer (8) is connected with the output of measuring appliance (7), and described motion of weft-insertion curve analyzer (8) is handled according to the data of described measuring appliance (7) output;
Master control borad (9), described master control borad (9) are connected between motion of weft-insertion curve analyzer (8) and the air-flow organization of supply (5), and described master control borad (9) is used to control the actuation time of a grade yarn pin, main burner, pilot jet.
2, the measurement mechanism of weft yarn leading-end motion state of air-jet loom inserting weft according to claim 1 is characterized in that: it is 10～15 that described photoelectricity is visited latitude head (6).
3, the measurement mechanism of weft yarn leading-end motion state of air-jet loom inserting weft according to claim 2 is characterized in that: described each photoelectricity is visited latitude head (6) and is evenly distributed along profiled steel reed (4).
4, the measurement mechanism of weft yarn leading-end motion state of air-jet loom inserting weft according to claim 1, it is characterized in that: described photoelectricity is visited latitude head (6) and is also comprised the detection frame (63) that is installed on the reed wire (41), and described light emitting diode (61) and photocell (62) are separately positioned on this detection frame (63).
5, the measurement mechanism of weft yarn leading-end motion state of air-jet loom inserting weft according to claim 1 is characterized in that: described motion of weft-insertion curve analyzer (8) is handled the data of detector (7) output and is depicted as time-displacement or/and speed-displacement curve shows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101363558A CN101463525B (en) | 2008-11-28 | 2008-11-28 | Measuring apparatus for weft yarn leading-end motion state of air-jet loom inserting weft |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101363558A CN101463525B (en) | 2008-11-28 | 2008-11-28 | Measuring apparatus for weft yarn leading-end motion state of air-jet loom inserting weft |
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| CN101463525A true CN101463525A (en) | 2009-06-24 |
| CN101463525B CN101463525B (en) | 2010-12-22 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102383245A (en) * | 2011-11-25 | 2012-03-21 | 江苏万工科技集团有限公司 | Weft yarn extension dynamic state measuring system |
| CN102433661A (en) * | 2010-09-29 | 2012-05-02 | 吴江市吴中布业有限公司 | Dual-station yarn feeding device |
| CN102505283A (en) * | 2011-11-01 | 2012-06-20 | 江苏万工科技集团有限公司 | Device for controlling initial spray time of main nozzle of air jet loom |
| CN102534956A (en) * | 2010-12-22 | 2012-07-04 | 江苏万工科技集团有限公司 | Precise length measuring device for loom |
| CN103114369A (en) * | 2013-01-29 | 2013-05-22 | 青岛铠硕纺机有限公司 | Independent air feed electronic wefting insertion system used for air-jet loom |
| CN105887291A (en) * | 2016-06-06 | 2016-08-24 | 浙江理工大学 | Experiment table used for monitoring weft movement state of air jet loom |
| CN105937084A (en) * | 2016-06-23 | 2016-09-14 | 苏州汇川技术有限公司 | Yarn-withdrawing control system and method for weft storage device |
| CN106757691A (en) * | 2017-02-16 | 2017-05-31 | 青岛海福机械制造有限公司 | A kind of air-jet loom |
| CN109629088A (en) * | 2019-02-27 | 2019-04-16 | 山东日发纺织机械有限公司 | The method of jet loom for drawing weft yarn device and its adjust automatically |
| CN115216878A (en) * | 2022-07-19 | 2022-10-21 | 苏州汇川控制技术有限公司 | Weft detecting circuit, device and method for air jet loom |
| CN116575170A (en) * | 2023-07-12 | 2023-08-11 | 江苏友诚数控科技有限公司 | Air current weft insertion beating-up mechanism for weaving thick fabric |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4295499A (en) * | 1978-12-12 | 1981-10-20 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Detection of weft in shuttleless loom |
| US7039489B2 (en) * | 2004-03-12 | 2006-05-02 | Sultex Ag | Monitoring of thread transport |
| DE502008002034D1 (en) * | 2007-02-02 | 2011-02-03 | Itema Switzerland Ltd | Method and device for introducing a weft thread into a loom |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102433661A (en) * | 2010-09-29 | 2012-05-02 | 吴江市吴中布业有限公司 | Dual-station yarn feeding device |
| CN102534956A (en) * | 2010-12-22 | 2012-07-04 | 江苏万工科技集团有限公司 | Precise length measuring device for loom |
| CN102505283A (en) * | 2011-11-01 | 2012-06-20 | 江苏万工科技集团有限公司 | Device for controlling initial spray time of main nozzle of air jet loom |
| CN102383245A (en) * | 2011-11-25 | 2012-03-21 | 江苏万工科技集团有限公司 | Weft yarn extension dynamic state measuring system |
| CN103114369A (en) * | 2013-01-29 | 2013-05-22 | 青岛铠硕纺机有限公司 | Independent air feed electronic wefting insertion system used for air-jet loom |
| CN105887291B (en) * | 2016-06-06 | 2018-03-16 | 浙江理工大学 | A kind of experimental bench for being used to monitor air-jet loom parallel motion state |
| CN105887291A (en) * | 2016-06-06 | 2016-08-24 | 浙江理工大学 | Experiment table used for monitoring weft movement state of air jet loom |
| CN105937084A (en) * | 2016-06-23 | 2016-09-14 | 苏州汇川技术有限公司 | Yarn-withdrawing control system and method for weft storage device |
| CN106757691A (en) * | 2017-02-16 | 2017-05-31 | 青岛海福机械制造有限公司 | A kind of air-jet loom |
| CN109629088A (en) * | 2019-02-27 | 2019-04-16 | 山东日发纺织机械有限公司 | The method of jet loom for drawing weft yarn device and its adjust automatically |
| CN109629088B (en) * | 2019-02-27 | 2023-12-19 | 山东日发纺织机械有限公司 | Weft insertion device of air jet loom and automatic adjustment method thereof |
| CN115216878A (en) * | 2022-07-19 | 2022-10-21 | 苏州汇川控制技术有限公司 | Weft detecting circuit, device and method for air jet loom |
| CN116575170A (en) * | 2023-07-12 | 2023-08-11 | 江苏友诚数控科技有限公司 | Air current weft insertion beating-up mechanism for weaving thick fabric |
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Effective date of registration: 20160718 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 Wujiang City, Jiangsu province wanpin town Patentee before: Jiangsu Wangong Science and Technology Group Co., Ltd. |