CN101463524A - Apparatus for measuring arrival time of exhausted jet stream front and rear edge reed spaces of air-jet loom - Google Patents
Apparatus for measuring arrival time of exhausted jet stream front and rear edge reed spaces of air-jet loom Download PDFInfo
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- CN101463524A CN101463524A CNA2008101363543A CN200810136354A CN101463524A CN 101463524 A CN101463524 A CN 101463524A CN A2008101363543 A CNA2008101363543 A CN A2008101363543A CN 200810136354 A CN200810136354 A CN 200810136354A CN 101463524 A CN101463524 A CN 101463524A
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Abstract
The invention relates to a device for measuring arrival time of the front and the rear edges of exhausted jet stream of an air-jet loom along reed width, which comprises a stream velocity detector used for collecting and transmitting time signals when the exhausted jet stream arrives at all the positions of a reed groove along the reed width, a computer used for collecting and generating angle electrical signals of the rotation of a main shaft of the loom, a main control panel that is provided with an input terminal electrically connected with an output terminal of the computer and an output terminal of a main shaft angle sensor, wherein, the main control panel processes according to the received signals. By measuring the arrival time of the front and the rear edges of exhausted jet stream along reed width, the device can help to know how the exhausted jet stream arrives in a weft insertion groove according to the requirements, thereby ensuring the weft insertion process to be stabler and providing actual measurement basis for saving the air using amount of the air-jet loom.
Description
Technical field
The present invention relates to air-jet loom, relate in particular to the measurement mechanism of air-jet loom jet-stream wind.
Background technology
The used in jet loom air-flow is realized wefting insertion, and the jet-stream wind of a plurality of pilot jets of arranging along reed width forms weft tracting flow, and the injection of pilot jet is sprayed from left to right successively along reed width, and adjacent injecting time section is overlapped.Available technology adopting wefting insertion control mode is a target to finish the wefting insertion action, and this control mode is a target to finish the wefting insertion action only.Because per share jet-stream wind has air-flow leading edge and trailing edge, and the flight position of weft yarn must be between air-flow leading edge and trailing edge, this is to guarantee the normal prerequisite of wefting insertion.Simultaneously one minute wefting insertion of air-jet loom is 800 times, and each wefting insertion state should be consistent.And, because the stable size that has also determined gas consumption of weft yarn flight is therefore stable for reaching wefting insertion, must understand the jet time of the spraying system of pilot jet, must understand the time that jet-stream wind arrives each position of reed width.
Summary of the invention
Thereby the object of the invention just provides the device that a kind of exhausted jet stream front and rear edge reed spaces assurance time of advent wefting insertion process that can measure air-jet loom stablizes and then can save gas consumption more.
In order to reach the foregoing invention purpose, technical scheme of the present invention is: the measurement mechanism of a kind of exhausted jet stream front and rear edge reed spaces time of advent of air-jet loom, a plurality of pilot jets, air-flow organization of supply that described air-jet loom spraying system comprises main burner, arranges along the air-jet loom reed width, described air-flow organization of supply comprises electromagnetic valve, source of the gas
This measurement mechanism comprises
The air velocity detector, it is used to gather and transmit the time signal that jet-stream wind arrives each reed groove position on the reed width;
Computer, described Computer Processing described air velocity detector input signal is also adjusted wefting insertion process parameter;
The main shaft angular transducer, it is used to gather and generate the angle signal of telecommunication that loom main shaft rotates;
Master control borad, the output of the output of described master control borad input and described computer and main shaft angular transducer is electrically connected, and closing and opening of electromagnetic valve handled and carried out to described master control borad according to the signal that receives.
To the variation of technique scheme be explained as follows:
1, described air velocity detector comprises at least one cover Pitot tube, the air-flow of Pitot tube is converted to the transmitter of the signal of telecommunication.
2, described Pitot tube is a cover, and described Pitot tube moves along reed width, and described Pitot tube can be 10～15 covers also, and described each Pitot tube distributes along reed width.
3, described air velocity detector also comprises the oscillograph that is connected between described transmitter and the computer.
4, described computer is used to also show that jet-stream wind arrives or leave the time graph of each position of reed groove.
5, described computer also is used to set overlap coefficient and the overlapping interval that each electromagnetic valve is opened the time.
Because the utilization of technique scheme, the present invention has following advantage: gather the time signal that jet-stream wind arrives front and rear edge by airflow-direction sensor is set, computer is handled the technological parameter of adjusting wefting insertion in the back to this signal thereby closing of electromagnetic valve and opening time is set, simultaneously, the main shaft angular transducer also detects in real time to the corner of main shaft, master control borad is controlled closing or opening of electromagnetic valve, reach and measure the exhausted jet stream front and rear edge reed spaces purpose of the time of advent, how help to understand jet-stream wind arrives in the wefting insertion groove as requested, thereby guaranteed that the wefting insertion process is more stable, for the gas consumption of saving air-jet loom provides the actual measurement foundation.
Description of drawings
Accompanying drawing 1 is applied in principle schematic on the air-jet loom for measurement mechanism of the present invention;
Accompanying drawing 2 is measurement mechanism operation principle flow chart of the present invention;
Wherein: 1, main burner; 2, pilot jet; 3, air-flow organization of supply; 31, electromagnetic valve; 32, source of the gas; 4, air velocity detector; 41, Pitot tube; 42, transmitter; 43, oscillograph; 5, main shaft angular transducer; 6, master control borad; 7, computer.
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 fell 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 main burner, pilot jet and the air-flow organization of supply that air-flow is provided for above-mentioned main burner and pilot jet, detailed process can be sketched and be: at first weft yarn is drawn by the bobbin unwinding, through tensioner, dial the yarn device, 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, enter in the special-shaped reed groove, in special-shaped reed groove containing a certain amount of weft yarn on the weft accumulator, 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 provided main burner 1, pilot jet 2, air-flow organization of supply 3 with and and profiled steel reed 8 between the structural relation simplified schematic diagram, main burner 1 faces the shed open direction, pilot jet distributes along the reed width compartment of terrain, air-flow organization of supply 3 comprises electromagnetic valve 31, source of the gas 32, by the opening and closing of control electromagnetic valve 31, thus the supply of control air-flow in main burner 1 and pilot jet 2.
Fig. 1 gives the present invention and realizes measuring the exhausted jet stream front and rear edge reed spaces principle schematic of the time of advent, it mainly comprises the air velocity detector 4 that is used to gather jet-stream wind arrival and end, computer 7, master control borad 6 and main shaft angular transducer 5, wherein, air velocity detector 4 comprises at least one cover Pitot tube 41, gather the Pitot tube output gas flow and it is transformed to the transmitter 42 of the signal of telecommunication, the oscillograph 43 that is electrically connected with described transmitter 42 outputs, Pitot tube 41 can be provided with a cover, many covers also can be set, as be provided with one the cover Pitot tube, should make that then this Pitot tube can move along reed width, to guarantee to gather the arrival and the end of jet-stream wind; If many cover Pitot tubes are set, be preferably 10～15 covers, Pitot tube is distributed along reed width, thereby also guarantee to collect the arrival and the ending message of jet-stream wind.After Pitot tube is experienced the arrival and end signal of jet-stream wind, carry out sending computer 7 to after signal is handled through transmitter 42, thereby computer 7 receives this signal carries out the technological parameter that the wefting insertion process is adjusted in computing, and opening and closing time of electromagnetic valve 31 is set, simultaneously, computer 7 can also show that jet-stream wind arrives or leave the time graph of each position of reed groove, i.e. jet-stream wind leading edge time graph and jet-stream wind trailing edge time graph.
Simultaneously, also be provided with main shaft angular transducer 5 with the main shaft place of air-jet loom, this main shaft sensor 5 is used to gather the rotational angle of main shaft and converts the signal of telecommunication to and inputs to master control borad 6, another input of master control borad 6 also is electrically connected with described computer 7, master control borad with the angle of axle as benchmark, and the unlatching or the shut-in time of the electromagnetic valve 31 of receiving computer transmission, promptly in this measurement mechanism, electromagnetic valve 31 is an execution unit.
And, electromagnetic valve to be opened and shut-in time when being provided with, described computer 7 can also be set overlap coefficient and the overlapping interval of each electromagnetic valve unlatching time.
Fig. 2 has provided the workflow diagram of this measurement mechanism, when the needs wefting insertion, master control borad 6 at first drives main burner and pilot jet is opened, thereby main burner and pilot jet carry out air flow jetting respectively, wefting insertion excessively in, jet-stream wind is by Pitot tube 41, the air-flow of Pitot tube 41 induction corresponding positions arrives and end signal, and export oscillograph 43 to after by transmitter 42 airflow signal being converted to the signal of telecommunication, oscillograph can carry out waveform to it and show, and this signal of telecommunication is sent into computer and is carried out the signal processing, computer is the adjusting process parameter in view of the above, and is provided with or the change electromagnetic valve opening and closing time next time, and inputs to master control borad 6, simultaneously, main shaft angular transducer 5 is subjected to trigger the signal of telecommunication also is sent to master control borad 6, thereby master control borad 6 drives the unlatching of electromagnetic valve once more according to the adjusted time, and so circulation is carried out, guaranteed the stability of wefting insertion process, thereby the foundation of actual measurement is provided for the gas consumption of saving air-jet loom.
Claims (7)
1, the measurement mechanism of a kind of exhausted jet stream front and rear edge reed spaces time of advent of air-jet loom, a plurality of pilot jets (2), air-flow organization of supply (3) that described air-jet loom spraying system comprises main burner (1), arranges along the air-jet loom reed width, described air-flow organization of supply (3) comprises electromagnetic valve (31), source of the gas (32)
It is characterized in that: this measurement mechanism comprises
Air velocity detector (4), it is used to gather and transmit the time signal that jet-stream wind arrives each reed groove position on the reed width;
Computer (7), described air velocity detector (4) input signal of described Computer Processing is also adjusted wefting insertion process parameter;
Main shaft angular transducer (5), it is used to gather and generate the angle signal of telecommunication that loom main shaft rotates;
Master control borad (6), the output of the output of described master control borad (6) input and described computer (7) and main shaft angular transducer (5) is electrically connected, and closing and opening of electromagnetic valve (31) handled and carried out to described master control borad (6) according to the signal that receives.
2, the measurement mechanism of exhausted jet stream front and rear edge reed spaces time of advent of air-jet loom according to claim 1, it is characterized in that: described air velocity detector (4) comprises at least one cover Pitot tube (41), the air-flow of Pitot tube (41) is converted to the transmitter (42) of the signal of telecommunication.
3, the measurement mechanism of exhausted jet stream front and rear edge reed spaces time of advent of air-jet loom according to claim 2, it is characterized in that: described Pitot tube (41) is a cover, and described Pitot tube (41) moves along reed width.
4, the measurement mechanism of exhausted jet stream front and rear edge reed spaces time of advent of air-jet loom according to claim 2 is characterized in that: described Pitot tube (41) is 10～15 covers, and described each Pitot tube (41) distributes along reed width.
5, according to the measurement mechanism of exhausted jet stream front and rear edge reed spaces time of advent of the arbitrary described air-jet loom of claim 1-4, it is characterized in that: described air velocity detector (4) also comprises the oscillograph (43) that is connected between described transmitter (42) and the computer (7).
6, according to the measurement mechanism of exhausted jet stream front and rear edge reed spaces time of advent of the arbitrary described air-jet loom of claim 1-4, it is characterized in that: described computer (7) is used to also show that jet-stream wind arrives or leave the time graph of each position of reed groove.
7, according to the measurement mechanism of exhausted jet stream front and rear edge reed spaces time of advent of the arbitrary described air-jet loom of claim 1-4, it is characterized in that: described computer (7) also is used to set each electromagnetic valve (31) open-interval overlap coefficient and overlapping interval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101363543A CN101463524A (en) | 2008-11-28 | 2008-11-28 | Apparatus for measuring arrival time of exhausted jet stream front and rear edge reed spaces of air-jet loom |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101363543A CN101463524A (en) | 2008-11-28 | 2008-11-28 | Apparatus for measuring arrival time of exhausted jet stream front and rear edge reed spaces of air-jet loom |
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| CN101463524A true CN101463524A (en) | 2009-06-24 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704151A (en) * | 2012-06-12 | 2012-10-03 | 江苏万工科技集团有限公司 | Weft insertion diversion trench airflow simulation measuring system |
| CN103290606A (en) * | 2013-06-18 | 2013-09-11 | 江苏万工科技集团有限公司 | Device for measuring relation curve between speed and traction force of weft |
| CN104005164A (en) * | 2013-02-27 | 2014-08-27 | 津田驹工业株式会社 | Picking information display method and device for water-jet loom |
| CN114197101A (en) * | 2020-09-02 | 2022-03-18 | 株式会社丰田自动织机 | Special reed checking device of air jet loom |
-
2008
- 2008-11-28 CN CNA2008101363543A patent/CN101463524A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704151A (en) * | 2012-06-12 | 2012-10-03 | 江苏万工科技集团有限公司 | Weft insertion diversion trench airflow simulation measuring system |
| CN104005164A (en) * | 2013-02-27 | 2014-08-27 | 津田驹工业株式会社 | Picking information display method and device for water-jet loom |
| CN104005164B (en) * | 2013-02-27 | 2016-09-28 | 津田驹工业株式会社 | The display packing of the picking information of water jet loom and device |
| CN103290606A (en) * | 2013-06-18 | 2013-09-11 | 江苏万工科技集团有限公司 | Device for measuring relation curve between speed and traction force of weft |
| CN103290606B (en) * | 2013-06-18 | 2014-08-06 | 江苏万工科技集团有限公司 | Device for measuring relation curve between speed and traction force of weft |
| CN114197101A (en) * | 2020-09-02 | 2022-03-18 | 株式会社丰田自动织机 | Special reed checking device of air jet loom |
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Open date: 20090624 |