CN101603233B - Method for controlling operation of a weft yarn withdrawing device in a flow jet weaving machine - Google Patents
Method for controlling operation of a weft yarn withdrawing device in a flow jet weaving machine Download PDFInfo
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- CN101603233B CN101603233B CN2009101505110A CN200910150511A CN101603233B CN 101603233 B CN101603233 B CN 101603233B CN 2009101505110 A CN2009101505110 A CN 2009101505110A CN 200910150511 A CN200910150511 A CN 200910150511A CN 101603233 B CN101603233 B CN 101603233B
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Abstract
The present invention provides a method for controlling operation of a weft yarn withdrawing device in a flow jet weaving machine. The weaving machine comprises a weft yarn storage device and weft yarn inserting nozzles. The weft yarn withdrawing device is provided between the weft yarn storage device and the weft yarn inserting nozzles, and is provided with a moving member moving between the weft yarn withdrawing position and releasing position. The method is characterized by comprising step of: moving the moving member at a first speed in operation period of the flow jet weaving machine; moving the moving member at a second speed less than the first speed during stop of the flow jet weaving machine when the moving member moves form the weft yarn releasing position to the withdrawing position.
Description
Technical field
The present invention relates to a kind of method that the operation that is positioned at the weft yarn withdrawing device in the weft storage device downstream in the fluid jet type weaving machine with respect to the weft yarn direction of insertion in the fluid jet type weaving machine is controlled.
Background technology
Fluid jet type weaving machine (only being called loom hereinafter) is provided with weft yarn withdrawing device, and open No.2001-20156 is disclosed like (for example) japanese unexamined patent.Weft yarn withdrawing device is arranged on weft storage device substantially and inserts between the nozzle at the weft yarn in weft storage device downstream with respect to the weft yarn direction of insertion in the loom.This weft yarn withdrawing device has to be made from the weft yarn bending of weft path and the dislocation moving component with the weft yarn of pulling back.The purpose of weft yarn of pulling back is through at the weft yarn of after each time weft yarn inserts, pulling back a little during the textile operation of loom, reducing to insert the length of the weft yarn that nozzle extends out from weft yarn, thus stable subsequently weft yarn insertion.Weft yarn withdrawing device is set, thereby after weft yarn insert to be accomplished, the weft yarn withdrawing position that keeps moving component before inserting of weft yarn subsequently.Therefore, if loom stops when weft yarn inserts in addition, then moving component remains on the weft yarn withdrawing position when loom stops.
When any fault of supplying with such as the weft yarn that removes any mixed weft, weft yarn remedy or operation such as any other similar operations after in the loom that stops during weft yarn of insertion, need insert from weft yarn and carry out weft yarn the nozzle.For this purpose, weft yarn withdrawing device is set, thereby moving component remains on place, weft yarn off-position in above operating period, and after above operation is accomplished, move to the weft yarn withdrawing position then.The moving component of weft yarn withdrawing device when loom stops, moving to move distance and the speed of above weft yarn off-position and weft yarn withdrawing position and during the textile operation of loom those basic identical.
Though during the textile operation of loom, insert the weft yarn in the nozzle because the huge power that fluid jet causes is applied to weft yarn, weft yarn does not receive weft yarn to insert the influence of this power in the nozzle when loom stops.For example; Carry out under the situation of the air-jet loom that weft yarn inserts through aerojet therein; After weft yarn inserts, from weft yarn insertion nozzle, spray gentle breeze,, thereby prevent that weft yarn from shifting out from weft yarn insertion nozzle at the loom stopping period so that weft yarn is applied slight tension force.Spray to carry out under the situation of the water jet looms that weft yarn inserts by water therein, remain on weft yarn and insert in the nozzle and the water that is attached on the weft yarn is used for weft yarn is applied slight tension force, thereby preventing that weft yarn from inserting the nozzle from weft yarn shifts out.Compare with the weft yarn that weft yarn during the loom textile operation inserts in the nozzle, the weft yarn that loom stopping period weft yarn inserts in the nozzle is more unstable.
Therefore, when operating weft yarn withdrawing device, when discharging weft yarn, go wrong hardly in order to carry out above operation (for example removing the mixed weft weft yarn) at the loom stopping period.Yet; When after above operation, pulling back weft yarn; Huge power can be applied to weft yarn momently and insert the weft yarn in the nozzle, and since the moving component of weft yarn withdrawing device as under the situation of textile operation with high-speed motion, may insert from weft yarn and shift out weft yarn the nozzle.If carry out the textile operation of loom with for example 800 rev/mins speed, then the action need of weft yarn withdrawing device is accomplished in about 10 milliseconds.In view of this needs, obvious moving component can be inevitably with very high speeds.
The present invention relates to a kind of method of operating of controlling the weft yarn withdrawing device in the fluid jet type weaving machine, wherein weft yarn withdrawing can not inserted it nozzle from weft yarn at the loom stopping period and shifts out.
Summary of the invention
According to an aspect of the present invention, a kind of method of operating of controlling the weft yarn withdrawing device in the fluid jet type weaving machine is provided.Fluid jet type weaving machine comprises that yarn package, weft storage device and weft yarn insert nozzle.Weft storage device can be operated to store the weft yarn of the predetermined length of from yarn package, pulling out.Weft yarn inserts nozzle and can operate to insert weft yarn through shed open.Weft yarn withdrawing device inserts between the nozzle at weft storage device and weft yarn, and has the moving component that can between weft yarn withdrawing position and weft yarn off-position, move.The method is characterized in that following steps: during the textile operation of fluid jet type weaving machine, make moving component with first speeds; And at the textile operation stopping period of fluid jet type weaving machine, when moving component when the weft yarn off-position moves to the weft yarn withdrawing position, make moving component to be lower than the second speed motion of first speed.
In conjunction with the accompanying drawing that principle of the present invention is described with the mode of instance, through following explanation, it is obvious that others of the present invention and advantage will become.
The accompanying drawing summary
Illustrate the characteristic of the present invention that is considered to novel according to the characteristic in the appending claims.Through following description and accompanying drawing with reference to presently preferred embodiment, can understand the present invention and target and advantage best, wherein:
Fig. 1 is the schematic plan that has shown the fluid jet type weaving machine that is used for double-colored weft yarn insertion;
Fig. 2 is the vertical view of weft yarn withdrawing device that has shown the fluid jet type weaving machine of Fig. 1;
Fig. 3 is the fragmentary side cross-sectional view that has shown the weft yarn withdrawing device of Fig. 2;
Fig. 4 is the time diagram that has shown the weft yarn withdrawing operation during the fluid jet type weaving machine textile operation; And
Fig. 5 is the explanatory that has shown the weft yarn withdrawing operation when fluid jet type weaving machine stops.
The specific embodiment
Below will a preferred embodiment of the present invention be applied to be used for the air-jet loom (only being called loom hereinafter) that double-colored weft yarn inserts be described referring to figs. 1 through 5.Term as used in this specification " double-colored weft yarn insertion " or " chintzing insertion " comprise two kinds of situation.In one case, weft yarn selectively property insert from a plurality of bobbins of yarn with different colours.Under other a kind of situation, weft yarn optionally inserts from a plurality of bobbins of yarn with same color.
With reference to Fig. 1, loom comprises: yarn feeding bobbin 1,2; Has weft yarn separately around pipe 5,6, drum 7,8, the weft storage device 3,4 that stops pin 9,10, photoelectric sensor 11,12 operated with the mode of electromagnetism; Series nozzle 13,14; Weft yarn inserts nozzle 15,16 and weft yarn withdrawing device 22,23.Weft yarn Y1 pulls out from yarn feeding bobbin 1, and is wrapped on the drum 7 around pipe 5 through the weft yarn of weft storage device 3.When weft yarn Y1 when stopping pin 9 and engage, the weft yarn Y1 of predetermined length is stored on the drum 7.Weft yarn Y1 combines to be programmed in weft yarn in the controller (not shown) of loom and inserts to start from stopping pin 9 and discharge.Based on the signal that is produced by the photoelectric sensor 11 that the length of the weft yarn Y1 that from drum 7, pulls out is carried out sensing, confirm weft yarn Y1 and stop to engage of pin 9., weft yarn carries out this joint when inserting completion.Weft yarn Y1 on the drum 7 is pulled out by series nozzle 13 from it, inserts nozzle 15 by weft yarn then and inserts in the shed open of warp thread T.
Weft yarn Y2 also is such, and weft yarn Y2 pulls out from yarn feeding bobbin 2, is wrapped on the drum 8 of weft storage device 4, is pulled out from drum 8 by series nozzle 14, inserts nozzle 16 through weft yarn then and inserts in the shed open.Yarn feeding bobbin 1 and 2 serves as yarn package of the present invention.During the textile operation of loom, wherein any one optionally inserts in the shed open of warp thread T based on program for the weft yarn Y1 of yarn supply bobbin 1 and the weft yarn Y2 of yarn feeding bobbin 2.Perhaps, weft yarn Y1 and Y2 alternatively insert in the shed open of warp thread T based on program.
The weft yarn path of navigation X that a plurality of auxiliary jets 18 are represented along chain-dotted line is arranged on the slay 17 of loom.Weft yarn Y1 or Y2 in the shed open of insertion warp thread T assist to fly over shed open by the aerojet from auxiliary jet 18.Weft yarn path of navigation X extends through direction of inserting along weft yarn and the guide hole 20 of putting the side reed spare 19 on slay 17.After weft yarn inserted and accomplishes, weft yarn Y1 or Y2 were patted by reed spare 19.Then, weft yarn Y1 or Y2 are positioned at cutter 21 cut-outs in the selvedge downstream of fabric W by the direction of insertion with respect to weft yarn Y1 or Y2.
As illustrated in fig. 1 and 2, weft yarn withdrawing device 22 and 23 is arranged in the upper reaches of weft path series nozzle 13 and 14.Fig. 2 has shown that the typical weft yarn between yarn feeding bobbin 1 and weft yarn insertion nozzle 15 inserts mechanism.Weft yarn inserts the weft yarn withdrawing device 22 of mechanism and constructs as follows.
First control model of controller 31 is used for the operation of weft yarn withdrawing device 22 during the loom textile operation.The operation of weft yarn withdrawing device 22 when second control model is used for loom and stops.Therefore, driver 30 changes pulsation rate according to the control signal of first control model or second control model, with drive stepping motor 26.The rotary speed of the stepper motor 26 in second control model of controller 31 is set according to the tension force of the weft yarn Y1 that provides by the gentle breeze that inserts nozzle 15 from weft yarn at the loom stopping period.The rotary speed of the stepper motor 26 in second control model of controller 31 is set 1/10th of speed in first control model for example for.Therefore, the controller 31 in second control model makes movement arm 29 to be significantly less than the speeds of the speed in first control model.Therefore, the weft yarn Y1's in second control model pulls back than in first control model, carrying out slowlyer.The rotary speed of the stepper motor 26 in second control model can change according to the tension force of the weft yarn Y1 of direct or indirect measurement.Perhaps, rotary speed can be set minimum for, pulls out weft yarn Y1 so that stop to insert the nozzle 15 from weft yarn, even be in possible following time of minimum tension force as weft yarn Y1.
As shown in Figure 3; According to the control signal of coming self-controller 31 and thus according to the rotary speed of stepper motor 26, movement arm 29 is moveable to wherein any one position of weft yarn withdrawing position 29A, weft yarn application position 29B, weft yarn off-position 29C and original position 29D.In following explanation, the position, angle of loom main shaft will be indicated by reference symbol θ 1-θ 10 shown in Figure 4.When the main shaft of loom rotated to position, angle θ 10 after each time weft yarn inserts completion, movement arm 29 moved to weft yarn withdrawing position 29A from weft yarn application position 29B, so that on retainer 28, pivot, thereby pulled back weft yarn Y1 downwards.When movement arm 29 was positioned at 29A place, weft yarn withdrawing position, movement arm 29 was from weft path downwarping and dislocation weft yarn Y1 to greatest extent, thereby made and be in the position of pulling back from the end that weft yarn inserts the weft yarn Y1 that the downstream end of nozzle 15 extends out.
When the main axis rotation of loom during to position, angle θ 8,29C moves to weft yarn application position 29B to movement arm 29 from the weft yarn off-position so that on retainer 28, pivot downwards, thereby with brake application in the weft yarn Y1 that flies.When movement arm 29 is positioned at weft yarn application position 29B place, movement arm 29 make the weft yarn Y1 that flies from weft path crooked with the certain amount of dislocation, thereby prevented to insert the excess tension of the impact generation when accomplishing by weft yarn.When the main axis rotation of loom during to position, angle θ 2,29A moves to weft yarn off-position 29C to movement arm 29 from the weft yarn withdrawing position, so that upwards be pivoted to the position that is positioned at above the weft path on the retainer 28, thereby weft yarn Y1 is discharged from pull back or brake.When movement arm 29 was positioned at 29C place, weft yarn off-position, movement arm 29 discharged weft yarn Y1 from bending, thereby reduced the resistance to weft yarn, so that smooth weft yarn inserts.Original position 29D is that movement arm 29 contacts with retainer 32 and position that movement arm 29 upwards pivots to greatest extent.When electric current is applied to stepper motor 26 at first, carry out the zeroing that is contained in the decomposer (not shown) in the stepper motor 26.Rotary encoder 33 detects the position, angle of loom main shaft, and controller 31 is produced the signal that shows position, detected angle.Note, with the detailed description of omitting for the weft yarn withdrawing device 23 that has essentially identical structure with weft yarn withdrawing device 22 and operate with essentially identical mode.
Below will describe position, the angle θ 1-θ 10 of loom main shaft with reference to Fig. 4 in detail.With reference to the Fig. 4 that has shown the time diagram that double-colored weft yarn inserts; The rotation that first of loom main shaft is complete (0 °-0 °) has shown the insertion of inserting the weft yarn Y1 of nozzle 15 through weft yarn, and second complete rotation of loom main shaft shown the insertion of inserting the weft yarn Y2 of nozzle 16 through weft yarn.θ 1 place in the position, angle, weft yarn Y1 (Y2) are cut device 21 and cut off.θ 2 places in the position, angle, weft yarn Y1 (Y2) discharge from weft yarn withdrawing device 22 (23).θ 8 places in the position, angle, weft yarn inserts and is braked.θ 10 places in the position, angle, weft yarn Y1 (Y2) is pulled back.θ 3 places in the position, angle start the aerojet of inserting nozzle 15 (16) from weft yarn.θ 7 places in the position, angle insert the aerojet of nozzle 15 (16) and accomplish from weft yarn.θ 4 places in the position, angle start the aerojet from series nozzle 13 (14).θ 6 places in the position, angle accomplish from the aerojet of series nozzle 13 (14).θ 5 places in the position, angle start weft yarn and insert.θ 9 places in the position, angle, weft yarn inserts to be accomplished.
The operation of above-mentioned loom below will be described.Because for weft yarn Y1 and Y2, basic identical such as the operation of looms such as insertion and post-tensioning, so will describe the operation that is used for weft yarn Y1 with reference to Fig. 4.During textile operation, started after first rotation of loom main shaft, the movement arm 29 of weft yarn withdrawing device 22 is positioned at 29A place, weft yarn withdrawing position.When the main axis rotation of loom during to position, angle θ 2, movement arm 29 according to from the signal movement of the controller in first control model 31 to the weft yarn off-position 29C.Therefore, weft yarn Y1 discharges from bending.
When the main axis rotation of loom arrives position, angle θ 3, start the aerojet of inserting nozzle 15 from weft yarn.When position, angle θ 4 after being positioned at position, angle θ 3 a little of the main axis rotation of loom, start aerojet from series nozzle 13.θ 5 places in the position, angle, weft yarn Y1 discharges from stopping pin 9, inserts to start weft yarn.Weft yarn Y1 inserts nozzle 15 by weft yarn and is ejected in the shed open, and the relaying of auxiliary jet 18 injection (relay injection) makes weft yarn Y1 move along weft yarn path of navigation X then.θ 6 places in the position, angle accomplish from the aerojet of series nozzle 13.θ 7 places in the position, angle insert the aerojet of nozzle 15 and also accomplish from weft yarn.Yet the aerojet of auxiliary jet 18 continues weft yarn Y1 and flies over shed open.
When the main shaft of loom rotated to position, angle θ 8 during weft yarn inserts, controller 31 produced signal according to first control model to driver 30, so that the stepper motor 26 of weft yarn withdrawing device 22 is rotated with first speed.Therefore, 29C moves to weft yarn application position 29B to movement arm 29 from the weft yarn off-position with first speed so that the crooked certain amount of the weft yarn Y1 that flies and with brake application in the weft yarn Y1 that flies.When the main axis rotation of loom arrives position, angle θ 9, stop pin 9 from drum 7 protrusions, thereby stop the weft yarn Y1 that flew with the speed that reduces at that time.Therefore, weft yarn inserts and accomplishes.
θ 10 places in the position, angle, controller 31 produces signal according to first control model to driver 30, so that the stepper motor 26 of weft yarn withdrawing device 22 is rotated with first speed.Therefore; Movement arm 29 moves to weft yarn withdrawing position 29A with first speed from weft yarn application position 29B; So that crooked to greatest extent weft yarn Y1, and the tension force of scheduled volume is applied at that time the weft yarn Y1 that the warp thread T by closure keeps, thereby makes weft yarn Y1 remain under the suitable tension force.When the main axis rotation of loom arrived about 0 ° position, angle, weft yarn Y1 was patted by reed spare 19.
Along with the weft yarn Y1 that pulled back by weft yarn withdrawing device 22, the second time of loom main shaft, rotation started.When the main axis rotation of loom arrived position, angle θ 1, weft yarn Y1 was cut device 21 and cuts off.During second rotation of loom main shaft, when weft yarn Y2 inserted in the shed open, weft yarn Y1 was ready.Therefore, the movement arm 29 of weft yarn withdrawing device 22 remains on 29A place, weft yarn withdrawing position, thereby makes weft yarn Y1 will remain on the position of pulling back.
The operation of weft yarn withdrawing device 22 in the time of below will describing loom and stop.More precisely, will removing automatically of mixed weft weft yarn be described with reference to Fig. 5.If the mixed weft of weft yarn Y1 during textile operation, occurs, the textile operation of loom stops, and does not carry out the cut-out of mixed weft weft yarn Y1 and follow-up weft yarn insertion.In response to the stop signal from loom, controller 31 makes first control model be transformed into second control model.In order to remove the mixed weft weft yarn, the main shaft of loom is made to carries out position, angle 180 degree that the last weft yarn inserts.After main shaft stopped, controller 31 produced signal according to second control model to driver 30.Driver 30 is to come drive stepping motor 26 corresponding to the pulsation rate of second control model.Therefore, 29A moves to weft yarn off-position 29C to movement arm 29 from the weft yarn withdrawing position with second speed, thereby weft yarn Y is discharged from bending.Notice that the motion of movement arm 29 29A 29C to the weft yarn off-position from the weft yarn withdrawing position can be with corresponding to the pulsation rate of first control model but not carry out corresponding to the pulsation rate of second control model.
Subsequently, weft yarn inserts nozzle 15 and starts so that carry out aerojet with series nozzle 13, and weft yarn Y1 discharges from the pin 9 that stops on the drum 7.Inserting weft yarn Y1 that nozzle 15 sprays from weft yarn is introduced into mixed weft with mixed weft weft yarn Y1 and removes the unit.When removing of mixed weft weft yarn Y1 accomplished, the weft yarn Y1 on the drum 7 is stopped pin 9 to be stopped, and weft yarn inserts the weft yarn that nozzle 15 and mixed weft remove between the unit and is cut off.Therefore, the mixed weft weft yarn removes completion.
When removing of mixed weft weft yarn accomplished, controller 31 produced signal according to second control model to driver 30, so that stepper motor 26 is rotated with second speed.Therefore, 29C moves to weft yarn withdrawing position 29A to movement arm 29 from the weft yarn off-position with second speed, thereby makes that the weft yarn Y1 that extends out from weft yarn insertion nozzle 15 stably and is accurately pulled back.Movement arm 29 remains on 29A place, weft yarn withdrawing position, so that restart loom.
A kind of situation possibly occur: wherein at the stopping period of loom, weft yarn withdrawing device 22 is operated to carry out after the given work, movement arm 29 fails to turn back to weft yarn withdrawing position 29A.In order to address this is that, be arranged such that controller 31 produces signal according to the generation in order to the signal that restarts loom, so that make movement arm 29 turn back to the weft yarn withdrawing position 29A in second control model.Therefore, the movement arm 29 of weft yarn withdrawing device 22 will be positioned in 29A place, weft yarn withdrawing position, and can when loom restarts, not be out of order.
The air-jet loom of the foregoing description provides following advantageous effect.
(1) when loom stops, weft yarn withdrawing device 22 (23) is operated with second speed (being lower than textile operation manipulate weft yarn withdrawing device 22 residing first speed of loom).Confirm the second speed of movement arm 29 according to the low-tension of the weft yarn Y1 (Y2) in the weft yarn insertion nozzle 15 (16).Therefore, do not worry that weft yarn Y1 (Y2) shifts out from weft yarn insertion nozzle 15 (16).
(2) when loom stops, the operation of weft yarn withdrawing device 22 (23) only is transformed into second control model from first control model, thereby has simplified the structure of loom.
(3) traditional mechanism of weft yarn withdrawing device 22 (23) is used for the present invention, thereby has prevented the increase of cost.
(4) because movement arm 29 is driven by stepper motor 26, thus the driving mechanism of weft yarn withdrawing device 22 (23) simplified, and make with low cost thus.
Described the present invention, but the present invention is not limited to this embodiment about above embodiment.It is obvious that can put into practice the present invention with following illustrative variety of way.
Adjustable speed motor of the present invention is not limited to stepper motor 26, but it can be replaced by servomotor.
Though in the above-described embodiments, the movement arm 29 of weft yarn withdrawing device 22 moves to weft yarn withdrawing position 29A in response to the loom stop signal, and movement arm 29 is moveable to and stops at other position.In this case, movement arm 29 restarts the signal of loom and moves to weft yarn withdrawing position 29A in response to order.
Loom can have sensor, the amplitude that pushes that this sensor measurement carries out along the direction of insertion of being inserted the weft yarn Y1 (Y2) of nozzle 15 (16) maintenances by weft yarn at the loom stopping period.In this case, controller 31 can be depending on the speed from the motor 26 in calculated signals second control model of sensor.This FEEDBACK CONTROL makes that weft yarn Y1 (Y2) can be back to drawing by optimally at the loom stopping period.
The fluid jet type weaving machine that the present invention can insert at the chintzing of the yarn feeding bobbin that is used for having more than two kinds of colors is put into practice.
Though fluid jet type weaving machine of the present invention in the above-described embodiments is applied to air-jet loom, it also can be applicable to water jet looms.
Claims (6)
1. method of operating of controlling the weft yarn withdrawing device (22,23) in the fluid jet type weaving machine, wherein said fluid jet type weaving machine comprises yarn package (1,2), weft storage device (3; 4) and weft yarn insert nozzle (15,16), wherein said weft storage device (3; 4) can operate with the weft yarn of storing the predetermined length of pulling out from said yarn package (1,2) (Y1, Y2); Wherein said weft yarn insert nozzle (15,16) can operate with insert through shed open said weft yarn (Y1, Y2); Wherein said weft yarn withdrawing device (22,23) is positioned at said weft storage device (3,4) and said weft yarn inserts nozzle (15; 16) between, and have the moving component (29) that can between weft yarn withdrawing position (29A) and weft yarn off-position (29C), move, it is characterized in that:
During the textile operation of said fluid jet type weaving machine, make said moving component (29) with first speeds; And
Said textile operation stopping period at said fluid jet type weaving machine; When said moving component (29) when said weft yarn off-position (29C) moves to said weft yarn withdrawing position (29A), make said moving component (29) to be lower than the second speed motion of said first speed.
2. method according to claim 1 is characterized in that:
Drive the said moving component (29) of said weft yarn withdrawing device (22,23) by adjustable speed motor (26).
3. method according to claim 1; It is characterized in that,, insert nozzle (15 according to said weft yarn at the said textile operation stopping period of said fluid jet type weaving machine; 16) (Y1, tension force Y2) is confirmed the said second speed of said moving component (29) to the weft yarn in.
4. method according to claim 2 is characterized in that:
Said weft yarn withdrawing device (22,23) is provided the controller (31) of the driving of the said adjustable speed motor of control (26);
First control model and second control model in the said controller (31) are set; Wherein when said controller (31) is in said first control model; Said moving component (29) is with said first speeds; Wherein when said controller (31) was in said second control model, said moving component (29) moved with said second speed; And
Stop signal based on said fluid jet type weaving machine makes said first control model be transformed into said second control model.
5. method according to claim 4 is characterized in that:
Produce signal by said controller (31) according to the generation of restarting the signal of said fluid jet type weaving machine, so that make said moving component (29) move to said weft yarn withdrawing position (29A).
6. according to the described method of each claim in the claim 2,4 and 5, it is characterized in that said adjustable speed motor (26) is a stepper motor.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008151190A JP5163301B2 (en) | 2008-06-10 | 2008-06-10 | Operation method of weft retractor in fluid jet loom |
| JP2008-151190 | 2008-06-10 | ||
| JP2008151190 | 2008-06-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101603233A CN101603233A (en) | 2009-12-16 |
| CN101603233B true CN101603233B (en) | 2012-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101505110A Expired - Fee Related CN101603233B (en) | 2008-06-10 | 2009-06-09 | Method for controlling operation of a weft yarn withdrawing device in a flow jet weaving machine |
Country Status (2)
| Country | Link |
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| JP (1) | JP5163301B2 (en) |
| CN (1) | CN101603233B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5321662B2 (en) * | 2011-09-14 | 2013-10-23 | 株式会社豊田自動織機 | Weft insertion device for air jet loom |
| EP3481981B1 (en) * | 2016-07-11 | 2021-02-24 | Vandewiele Sweden AB | Zero-twist yarn feeding device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6197448A (en) * | 1984-10-19 | 1986-05-15 | 株式会社豊田自動織機製作所 | Wefting apparatus in fluid jet type loom |
| JP2001020156A (en) * | 1999-07-02 | 2001-01-23 | Tsudakoma Corp | Method for operating device for pulling back weft in fluid spray type loom |
| JP3654350B2 (en) * | 2001-07-11 | 2005-06-02 | 津田駒工業株式会社 | Weft pullback control method |
| JP4003710B2 (en) * | 2003-07-23 | 2007-11-07 | 株式会社豊田自動織機 | Weft insertion control device in jet loom |
-
2008
- 2008-06-10 JP JP2008151190A patent/JP5163301B2/en not_active Expired - Fee Related
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- 2009-06-09 CN CN2009101505110A patent/CN101603233B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101603233A (en) | 2009-12-16 |
| JP2009299198A (en) | 2009-12-24 |
| JP5163301B2 (en) | 2013-03-13 |
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