CN101298714A - Pirnless loom main drive mechanism and method for searching weft - Google Patents
Pirnless loom main drive mechanism and method for searching weft Download PDFInfo
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- CN101298714A CN101298714A CNA2008100373355A CN200810037335A CN101298714A CN 101298714 A CN101298714 A CN 101298714A CN A2008100373355 A CNA2008100373355 A CN A2008100373355A CN 200810037335 A CN200810037335 A CN 200810037335A CN 101298714 A CN101298714 A CN 101298714A
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- weaving machine
- weft
- shuttleless
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Abstract
The invention relates to a main driving mechanism of a shuttleless weaving machine and a weft-searching method. The main driving mechanism of the shuttleless weaving machine adopts a variable-frequency motor driven by a variable-frequency driver as a driving mode adopted by the weaving machine main driving mechanism to drive a main shaft of the weaving machine. The weft-searching method is based on angles fed back by a coder to control the variable-frequency motor to drive the weaving machine to do accurate positional rotation positively or reversely so as to complete the weft-searching in virtue of the shutdown state accurately positioned by the weaving machine. The driving mechanism of the invention provides convenience for changing the rotary speed of quick weaving machine and slow weaving machine so as to enhance the manufacturing efficiency and reduce maintenance cost and also to reduce the energy cost of motor during the shutdown of weaving machine with energy conservation effect. The weft-searching method of the invention is convenient to regulate, and has the advantages of simple structure, low accessory cost and high positioning accuracy.
Description
Technical field
The present invention relates to the loom main drive gear and seek the latitude method, the variable-frequency motor that especially adopts the variable frequency drives driving is as the main drive gear of loom main driving motor with without traditional slow motor and the latitude method of seeking of seeking the latitude clutch.
Background technology
Shuttleless loom main drive gear in the market drives by the AC asynchronous motor of high torque (HT), through V belt, clutch transmission loom main shaft.This kind of drive principle as shown in Figure 1.Caused by loom stop is sought the latitude operation and must be finished separately by the latitude mechanism of seeking of band torque motor, has strengthened the complexity and the maintenance difficulty of mechanism.Its transmission operation principle is: when motor powered on, then small belt pulley 6, V belt 7, big belt pulley 8, motor 9 all is in operating condition, when pressing the loom start button, clutch magnet 5 coils get electric, produce magnetic field, and central drive plate 4 is attracted to clutch rotor 2.Because clutch rotor 2 has friction material with the end face that central drive plate 4 contacts, produce moment of friction, then clutch rotor 2 drives loom main shaft 1 rotation by central drive plate 4, and whole loom is started working.When in the normal operation process, after pressing stop button or fault automatic stopping signal and sending, clutch magnet coil 5 rapid dead electricity, the 3 brief high energising work of brake magnet coil.At this moment, because the magnetic field that brake magnet coil 3 electric currents produce inhales central drive plate 4 to brake magnet coil 3 end faces, and the iron core of brake magnet coil 3 is to be fastened on the frame, by frictional resistance moment, loom main shaft is stopped rapidly, realize that full machine stops.
The shortcoming of this transmission mechanism is that the angle of crawl leans on control the pickup time of clutch, and the speed of crawl also can't accurately be controlled, be difficult to reach the required precision of mechanical structure such as debugging loom scissors, bring trouble to operation, the mechanician will work in coordination and finish the relevant machine operation of transferring by manual operation under a lot of situations, especially when start, can not weave cotton cloth at a slow speed by actual conditions easily, as will do, then must change belt pulley, these have all reduced the service efficiency of loom.The Frequency Drive mode can reach the convenient loom rotating speed requirement of setting.
Summary of the invention
The objective of the invention is to defective at the prior art existence, a kind of novel shuttleless loom main drive gear is provided and seeks the latitude method, can the fast digital setting to the rotating speed of loom, latitude just can accurately be sought by the additional latitude mechanism of seeking that need not be extra, improved control accuracy, reduce the maintenance expense, reduce production costs, improved the technology content and the class of loom.
To achieve the above object of the invention, design of the present invention is:
This transmission mechanism and the schematic diagram of seeking the latitude method are as shown in Figure 2.Seeking latitude does not at a slow speed need special slow speed motor and seeks the latitude clutch mechanism, but by loom control system 14 according to encoder 13 angles fed back control of conversion motors 9 drive the loom slow forward or oppositely accurately motion drive a series of mechanisms such as heald frame and finish and seek the latitude action.
According to the foregoing invention design, the present invention adopts following technical proposals:
A kind of shuttleless loom main drive gear comprises the drive motors of a loom main shaft, it is characterized in that this drive motors adopts variable frequency drives to drive.Above-mentioned variable frequency drives 11 is electrically connected drive motors 9 by cable 10; The encoder 13 that one end of loom main shaft 1 connects by a synchronous pulley device 12, the output of this encoder 13 is connected to the master control system 14 of shuttleless loom, and the output of master control system 14 connects described variable frequency drives 9.
A kind of shuttleless loom is sought the latitude method, adopt above-mentioned shuttleless loom main transmission method to realize driving loom main shaft, it is characterized in that control of conversion motor-driven loom does accurately can locate rotation in conjunction with the angle of encoder, thereby seek the latitude action by finishing loom under the pinpoint dead ship condition of loom.
The present invention has following conspicuous outstanding substantive distinguishing features and remarkable advantage compared with prior art: adopt variable-frequency motor as the loom main driving motor, this motor can satisfy the continuous variation of machine speed, but the loom automatic speed regulation that adapts is to adapt to the needs of weaving process.The loom main drive gear adopts variable-frequency motor, has reduced maintenance, has reduced production cost, has improved production efficiency.When seeking latitude, can save special-purpose torque motor etc. and seek latitude mechanism, directly finish by frequency conversion master motor and seek the latitude action, reduced mechanical complexity.The speed of variable-frequency motor can significantly reduce the time that is provided with and the high accuracy that obtains the location of speed by system controlled by computer.Variable-frequency motor is directly finished and sought the latitude method of operating and be: the loom controller is done accurately the rotation of location forward or backwards according to the loom angle control of conversion motor-driven loom of encoder feedback, drive heald frame by main transmission like this and accurately move, seek the latitude action thereby finish loom.
Description of drawings
Fig. 1 is the structural representation of the shuttleless loom main drive gear in the prior art.
Fig. 2 is structural representation of implementing side of the present invention.
The specific embodiment
It is as follows to invent a structure accompanying drawing of implementing side:
Referring to Fig. 2, this shuttleless loom main drive gear characteristics are: the main drive gear of shuttleless loom is according to the kind of drive of encoder 13 angles fed back control of conversion motors 9 as loom main driving motor transmission loom main shaft 1.
The above-mentioned kind of drive is: when system powered on, then synchronous pulley 6, synchronous belt 7, and synchronous pulley 8, variable-frequency motor 9 all is in halted state.When pressing the loom start button, by the speed motion of setting, clutch magnet 5 coils get electricly then, produce magnetic field by cable 10 control of conversion motors 9 for variable frequency drives 11, and central drive plate 4 is attracted to clutch rotor 2.Because clutch rotor 2 has friction material with the end face that central drive plate 4 contacts, produce moment of friction, then clutch rotor 2 drives loom main shaft 1 rotation by central drive plate 4, and whole loom is started working.When in the normal operation process, after pressing stop button or fault automatic stopping signal and sending, clutch magnet coil 5 rapid dead electricity, the 3 brief high energising work of brake magnet coil.At this moment, because the magnetic field that brake magnet coil 3 electric currents produce, central drive plate 4 is inhaled to brake magnet coil 3 end faces, and the iron core of brake magnet coil 3 is to be fastened on the frame, pass through frictional resistance moment, loom main shaft is stopped rapidly, realize that full machine stops, variable frequency drives 11 stops by cable 10 control of conversion motors 9 then.By synchronous pulley 6, be with 7 synchronously, synchronous pulley 8 is according to the accurate angle that turns over of control of conversion motor 9 of encoder 13 angles fed back of the connection of synchronous pulley device 12.
The present invention seeks the latitude method: adopt above-mentioned shuttleless loom main drive gear to realize driving loom main shaft 1, loom master control system 14 is done can locate accurately forward or backwards according to the loom angle control of conversion motor 9 driving looms of encoder 13 feedbacks and is rotated, thereby seeks the latitude action by finishing loom under the pinpoint dead ship condition of loom.
Claims (3)
1, a kind of shuttleless loom main drive gear comprises the drive motors (9) of a loom main shaft (1), it is characterized in that the variable-frequency motor that this drive motors (9) adopts a variable frequency drives (11) to drive.
2, shuttleless loom main drive gear according to claim 1 is characterized in that described: variable frequency drives (11) is electrically connected drive motors (9) by cable (10); The encoder (13) that one end of loom main shaft (1) connects by a synchronous pulley device (12), the output of this encoder (13) is connected to the master control system (14) of shuttleless loom, and the output of master control system (14) connects described variable frequency drives (9).
3, a kind of shuttleless loom is sought the latitude method, adopt the described shuttleless loom main drive gear of claim 2, realize driving loom main shaft (1), it is characterized in that loom master control system (14) drives loom according to encoder (13) angles fed back control of conversion motor (9) and does can locate rotation forward or backwards accurately, thereby seek the latitude action by finishing loom under the pinpoint dead ship condition of loom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100373355A CN101298714A (en) | 2008-05-13 | 2008-05-13 | Pirnless loom main drive mechanism and method for searching weft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100373355A CN101298714A (en) | 2008-05-13 | 2008-05-13 | Pirnless loom main drive mechanism and method for searching weft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101298714A true CN101298714A (en) | 2008-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100373355A Pending CN101298714A (en) | 2008-05-13 | 2008-05-13 | Pirnless loom main drive mechanism and method for searching weft |
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| CN (1) | CN101298714A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103320949A (en) * | 2012-03-20 | 2013-09-25 | 厦门莱宝机械有限公司 | Reverse pick finding method not needing reverse motion of shedding mechanism |
| CN108866760A (en) * | 2018-09-13 | 2018-11-23 | 山东日发纺织机械有限公司 | Rapier loom weft seeking device |
| CN113186630A (en) * | 2021-04-28 | 2021-07-30 | 山东日发纺织机械有限公司 | Power device of loom |
-
2008
- 2008-05-13 CN CNA2008100373355A patent/CN101298714A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103320949A (en) * | 2012-03-20 | 2013-09-25 | 厦门莱宝机械有限公司 | Reverse pick finding method not needing reverse motion of shedding mechanism |
| CN103320949B (en) * | 2012-03-20 | 2016-02-10 | 厦门莱宝机械有限公司 | A kind of do not need shedding mechanism return motion oppositely seek latitude method |
| CN108866760A (en) * | 2018-09-13 | 2018-11-23 | 山东日发纺织机械有限公司 | Rapier loom weft seeking device |
| CN113186630A (en) * | 2021-04-28 | 2021-07-30 | 山东日发纺织机械有限公司 | Power device of loom |
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Open date: 20081105 |