CN1532315A - Method and device for preventing thick and thin section of loom - Google Patents
Method and device for preventing thick and thin section of loom Download PDFInfo
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- CN1532315A CN1532315A CNA2004100399357A CN200410039935A CN1532315A CN 1532315 A CN1532315 A CN 1532315A CN A2004100399357 A CNA2004100399357 A CN A2004100399357A CN 200410039935 A CN200410039935 A CN 200410039935A CN 1532315 A CN1532315 A CN 1532315A
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- warp tension
- cloth fell
- action
- revisal
- cloth
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D49/00—Details or constructional features not specially adapted for looms of a particular type
- D03D49/04—Control of the tension in warp or cloth
- D03D49/06—Warp let-off mechanisms
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B3/00—Methods or installations for obtaining or collecting drinking water or tap water
- E03B3/06—Methods or installations for obtaining or collecting drinking water or tap water from underground
- E03B3/08—Obtaining and confining water by means of wells
- E03B3/15—Keeping wells in good condition, e.g. by cleaning, repairing, regenerating; Maintaining or enlarging the capacity of wells or water-bearing layers
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D51/00—Driving, starting, or stopping arrangements; Automatic stop motions
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D51/00—Driving, starting, or stopping arrangements; Automatic stop motions
- D03D51/002—Avoiding starting marks
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B5/00—Use of pumping plants or installations; Layouts thereof
- E03B5/04—Use of pumping plants or installations; Layouts thereof arranged in wells
- E03B5/06—Special equipment, e.g. well seals and connections for well casings or the like
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- Textile Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
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- Water Supply & Treatment (AREA)
- Environmental & Geological Engineering (AREA)
- Looms (AREA)
Abstract
To surely prevent weaving bar by setting the actual cloth fell position and the value of the warp tension to the correct ones precisely in a weaving machine wherein the cloth fell position is adjusted and the warp tension is newly set before the start of the normal operation of a weaving machine. In this method for preventing weaving bar in a weaving machine, after completion of the preparation of the start of the weaving machine comprising the cloth fell position-correcting motion for moving the cloth fell position to a prescribed position by rolling the cloth-winding rolls and the warp tension adjusting motion for adjusting the warp tension to a prescribed value by rotating the sending beam, then the weaving machine is allowed to start the normal operation. In this case, after completion of the cloth fell position correction motion, the warp tension adjusting motion is completed. Then, the preparation of the start of the weaving machine is completed after the completion of the warp tension adjustment.
Description
Technical field
The loom thick and thin places that the present invention relates to carry out before loom starts, earlier the setting action of the revisal action of cloth fell and warp tension prevents method and device.
Background technology
In the loom, known have the thick and thin places of following a kind of loom to prevent that method promptly, before running (normality running) begins usually, make cloth beam rotate predefined value towards the direction opposite with common cloth beam (work beam) gyratory directions, make cloth fell move (keeping out of the way) to the rear side (downstream) of warp thread direction of travel, make simultaneously send the axle rotate predefined value towards common cloth beam gyratory directions, the warp tension of sending side is carried out (for example beginning common running again after the inching, with reference to patent documentation 1 (No. 2619863 communique of Japanese Patent Laid)).
In general, in case stop platform (stopping) reason, then loom standby (stopping platform) stops after the platform reason repairs, and loom turns round again.Owing to having multiple reason to cause to stop platform, and owing to the operator's evening time of advent and the different platform reason of stopping, it is also different sometimes to repair the needed time, and therefore, the time that loom stops platform also may not be the same.
For example, because warp thread extends under the effect of the tension force of giving warp thread and warp thread deadweight, so the down time of loom is long more, warp tension just reduces more., adjust when loom starts on the loom of warp tension adjustment action of warp tension, the length basis of this action required time stops that the change degree of warp tension changes in the platform for this reason.
Again, include cloth fell revisal action in the startup warming-up exercise that carries out in loom when beginning running, this action is by making the revolution of sending axle and follow-up deflector roll that warp thread is all moved, the cloth fell with respect to stop position being carried out revisal.In case carry out the revisal of cloth fell by carrying out this cloth fell revisal action, then warp tension changes.
As mentioned above, tension adjustment action required during, can be subjected to usually revisal amount, the loom of cloth fell stop in the influence of variation (slippage) of warp tension.
According to inventor's research, to have confirmed because of cloth beam, sent axle etc. and be subjected to the difference of driver part, cloth fell, fell periphery are different to the influence degree of warp tension.That is to say that if the tension adjustment action is to finish, then the warp tension value of being set by the tension adjustment action (actual value) changes because of cloth fell revisal action before cloth fell revisal release.
Again, cloth fell revisal action roughly needs to finish during certain.But the change degree of warp tension changes in the platform because tension adjustment action is according to stopping, therefore, the concluding time of tension adjustment action be the cloth fell revisal release time or before or after.Like this, the warp tension of final when initial beating up (during the running beginning) can occur irregular, departs from needed tension value significantly, and its result causes thick and thin places.
Therefore, not talkative simple execution cloth fell revisal action and warp tension adjustment action just can prevent thick and thin places always, exist problem aspect reliability.
Specifically, the allocation position and the intermediary between the fell of cloth beam are few, and the interval of cloth beam and fell is short.And the stroke of the cloth from cloth beam to fell is littler than the stroke from fell to the warp thread of sending axle.Like this, weave cotton cloth itself because of the revolution of cloth beam is passed to, so it is big to turn round the caused influence degree to the cloth fell revisal of cloth beam, the place ahead of cloth fell is moved the rear and is moved and can be carried out exactly by cloth beam.
Because warp thread contacts with mechanical parts such as heald frame, reed, menopause tablets, the friction of the turning power of cloth beam because of producing between these mechanical parts and warp thread is difficult to exactly to the warp thread transmission.Therefore, as described later, compare with sending axle, cloth beam is not suitable for the tension adjustment to warp thread.
The turning power of sending axle of warp thread can be reliably to the warp thread transmission owing to directly reeling, and the relation of therefore sending a turning power and warp tension is clear and definite, sends axle and is suitable for tension adjustment.
Yet, from sending axle, exist the mechanical part of heald frame, reed, menopause tablet etc. between the cloth fell, because of the existence of these parts, and can produce friction between the warp thread.Like this,, also can be difficult to exactly, deviation can occur by sending the cloth fell that axle carries out after the revisal action to the fell transmission because of the friction of reed etc. even send axle revolution and warp thread is moved.Therefore, with regard to the adjustment of cloth fell, send axle and be not suitable for than cloth beam.
From the above, for fabric, respectively cloth fell revisal action is born to good by sending axle by cloth beam, warp tension adjustment action in order to prevent that thick and thin places from need accurately adjust together to cloth fell and warp tension.And, as previously mentioned, can infer finishing of tension adjustment action be placed on cloth fell revisal action after this point take place the most effective to thick and thin places.
Summary of the invention
The object of the invention is, the loom to the setting action of the revisal action of carrying out cloth fell at loom usually before the running, warp tension by adjusting actual cloth fell, the value of warp tension exactly, prevents thick and thin places reliably.
Thick and thin places of the present invention prevents that method from relating to after starting the warming-up exercise end, makes the thick and thin places that loom turns round usually prevent method, and described startup warming-up exercise comprises: rotate cloth beam, make cloth fell move to the cloth fell revisal action of institute's allocation; And rotate the warp tension adjustment action send axle, warp tension to be adjusted to institute's definite value.Such thick and thin places prevents that method from comprising following feature: after finishing described cloth fell revisal action, finish described warp tension adjustment action and finish described startup warming-up exercise.
Thick and thin places of the present invention is prevented locking apparatus, comprising: rotate cloth beam, make cloth fell move to the cloth fell retriever of institute's allocation; Rotation is sent axle, warp tension is adjusted to the warp tension adjuster of institute's definite value; And after finishing, the startup warming-up exercise of described cloth fell retriever and described warp tension adjuster make loom begin the main control unit of running usually.Described main control unit finishes described warp tension adjustment action and finishes described startup warming-up exercise after finishing described cloth fell revisal action.
The various situations of said here end cloth fell revisal action and warp tension adjustment action, specifically corresponding with each predetermined end of moving, because of the enforceable action that causes unusually that takes place in each action is ended not to be included in the above-mentioned end situation.
Adopt the present invention, by the cloth fell revisal action of cloth beam, after cloth fell is accurately adjusted, again by sending the warp tension adjustment action of axle, warp tension is adjusted to institute's definite value, and finishes to start warming-up exercise, loom begins common running then.Like this, to the most influential cloth fell of generation and the warp tension of thick and thin places, can both adjust to required state exactly.
Above-mentioned result, the sort of in the past bad phenomenon can not take place again promptly: for example, change because of the warp tension of loom in stopping at every turn, make the release time of cloth beam be later than the release time of sending axle, its result cloth fell revisal action after warp tension is adjusted release is also being carried out, final warp tension before will soon starting has thus been set the value that significantly departs from required tension value for, causes the generation of thick and thin places.
Described thick and thin places prevents method, also can comprise following feature: after the described cloth fell revisal action of beginning, begin described warp tension adjustment action again.
Described thick and thin places prevents method, also can comprise following feature: after described cloth fell revisal release, begin described warp tension adjustment action again.
Described thick and thin places prevents method, also can comprise following feature: each actuation time of inferring described cloth fell revisal action and described warp tension adjustment action, according to the time difference of the time started that determines described cloth fell revisal action and described warp tension adjustment action each actuation time, determine the time started of described warp tension adjustment action according to the described time difference.
Described thick and thin places prevents method, also described cloth fell revisal can be moved the time of beginning and the time difference of the time that described warp tension adjustment action begins, be made as 1 value, perhaps be made as the value of from predefined value, selecting according to the key element of described warp tension generation deviation.
Description of drawings
Fig. 1 is the skeleton diagram with loom of the anti-locking apparatus of thick and thin places of the present invention.
Fig. 2 is the square frame line chart that an embodiment who batches control device who constitutes the anti-locking apparatus part of thick and thin places shown in Figure 1 is shown.
Fig. 3 is the square frame line chart that an embodiment of the eject control apparatus that constitutes the anti-locking apparatus part of thick and thin places shown in Figure 1 is shown.
Fig. 4 prevents the sequential chart that device action is used for explanation thick and thin places shown in Figure 1.
Fig. 5 is the square frame line chart that the variation of the anti-locking apparatus of thick and thin places of the present invention is shown.
Fig. 6 is used to illustrate the present in diagrammatic form output of relative time of the action of the speed retriever of the anti-locking apparatus of thick and thin places shown in Figure 5.
Fig. 7 is the square frame line chart that anti-another variation of locking apparatus of thick and thin places of the present invention is shown.
The specific embodiment
With reference to Fig. 1, in loom 10, warp thread 12 is sent axle 14 from its coiling, links to each other with fell 22 with reed 20 via back roller 16, a plurality of heald frame 18.Weave cotton cloth 24 from the cloth beam 28 of fell 22 process deflector rolls 26 arrival through woven, pass out to batching axle 32, batched on batching axle 32 by cloth beam 28 and 1 pair of pressure roller 30 as work beam.
Send axle 14 and carry out driving rotational by the gear mechanism 36 that the reducing gear by gear and so on constitutes, send many warp thread 12 with the form of sheet by motor 34.Be wound on send the warp thread 12 of axle on 14 amount along with warp thread 12 reduces gradually from sending sending of axle 14.The coil diameter of sending axle 14 is detected through sensor 38 by volume, and the coil diameter signal S1 of detection supplies with to eject control apparatus 40.The rotating speed of sending motor 34 output shafts is detected by tachogenerator 42, and the speed of gyration signal S2 that sends of detection supplies with to eject control apparatus 40.
The tension value (actual value) that acts on warp thread 12 is detected by the warp tension sensor 44 of detection effect in the load of back roller 16.Detected tension signal S3 supplies with to eject control apparatus 40 in the actual tension of warp thread 12 as practical function.
Motion changing mechanism 48 is accepted the gyration by the main shaft 46 of spindle motor (not shown) revolution driving, and each heald frame 18 moves back and forth up and down by this motion changing mechanism 48, makes warp thread 12 upper and lower openings.
The motion changing mechanism 50 of the gyration of reed 20 by accepting main shaft 46 is swung, and beats up at the weft yarn 52 of 22 pairs of pickings of fell to warp thread 12 openings.
Cloth beam 28 turns round driving by the gear mechanism 56 that the reducing gear by gear of accepting reel-motor 54 gyrations and so on constitutes, and will weave cotton cloth jointly with pressure roller 30 24 passes out to batching axle 32.
The angle of revolution of main shaft 46 and reel-motor 54 is detected by encoder 58 and 60 respectively.Main shaft gyration angle signal S4 that detects and roller angle of revolution signal S5 supply with to batching control device 62.Main shaft gyration angle signal S4 also supplies with to eject control apparatus 40.
Batching axle 32 is by sliding bearing (not shown), turn round driving by the moment of torsion guiding mechanism 64 that batches of accepting main shaft 46 gyrations, 24 the circular velocity of weaving cotton cloth that is wound in batching axle 32 is slightly greater than weave cotton cloth 24 feed rate, revolution drives and makes 24 the coiling tension of weaving cotton cloth keep certain value.
With reference to Fig. 2 and Fig. 3, to work as an inscape of the anti-locking apparatus of loom 10 thick and thin places batch control device 62 and eject control apparatus 40 describes, the limit describes with reference to the action of Fig. 4 limit to the anti-locking apparatus of thick and thin places simultaneously.
As shown in Figure 2, batching control device 62 comprises: the revolution amount of reel-motor 54 was controlled the Synchronization Control portion 66 of usefulness when loom 10 was turned round (normality running) usually; And the revolution amount of control reel-motor 54, start the cloth fell control part 68 that fell 22 positions are used on warp thread 12 moving directions when preparing with revisal loom 10.
When the operator presses the running button 72 that stops loom 10 in the platform, press signal S0 and be input to main control unit 70.Main control unit 70 is by pressing the input of signal S0, to start ready signal S7 to drive amount signal generator 76 and command generator 78 outputs, make eject control apparatus 40 and batch control device 62 works and start warming-up exercise, after starting the warming-up exercise end, with switch 74 outputs of CRANK PULSES S6 to eject control apparatus 40 shown in Figure 3.
In the cloth fell revisal amount setting apparatus 82, preestablished and comprised filling density in the interior revisal amount of cloth fell when being used to calculate the various data of reel-motor 54 base speeds and starting warming-up exercise.
Drive amount signal generator 76 is carried out cloth fell revisal action by the input that starts ready signal S7 during with time t2 shown in Fig. 4 (D).During cloth fell revisal action, drive amount signal generator 76 is according to the revisal amount of setting in the cloth fell revisal amount setting apparatus 82, the drive amount (revolution amount) of reel-motor 54 is transformed to the cloth fell control signal S11 of pulse type, supplies with to 86 1 sides' of the portion that adds of Synchronization Control portion 66 input terminal.
Synchronization Control portion 66 has basic revolution amount signal generator 84, this basic revolution amount signal generator 84 is according to the filling density and the main shaft gyration angle signal S4 that set in the cloth fell revisal amount setting apparatus 82, calculate the base speed of reel-motor 54, reel-motor 54 is driven.
Basic revolution amount signal generator 84 can by making reel-motor 54 to turn round corresponding to the speed of main shaft 46 basic rotating speeds, make its revolution measure corresponding revolution amount with 46 revolutions of loom 10 main shafts during loom 10 runs well.
Specifically, basic revolution amount signal generator 84 receives main shaft gyration angle signal S4 between loom 10 common on-stream periods, according to the various data of main shaft gyration angle signal S4 that receives and filling density etc., the basic revolution amount signal S10 of pulse type that will be corresponding with reel-motor 54 base speeds supplies with to the opposing party's of the portion 86 that adds input terminal.
The basic revolution amount signal S10 that portion 86 will import the pulse type of the cloth fell control signal S11 of pulse type of side's input terminal and input the opposing party terminal that adds imports together.Adding portion 86 will be from the pulse-like signal of 2 input terminals as batching target value signal S12, to the terminal output that adds of reversible counter 88.
Starting between the preparatory stage, because of loom 10 does not turn round promptly usually, main shaft 46 does not turn round, so basic revolution amount signal generator 84 is not exported the basic revolution amount signal S10 of pulse types to the portion 86 that adds.Like this, only be that signal from drive amount signal generator 76 is cloth fell control signal S11 from the portion 86 that adds to the target value signal S12 that batches of the pulse type of reversible counter 88 output.
88 couples of cloth fell control signal S11 from portion's 86 inputs that add of reversible counter count, and use the pulse type roller angle of revolution signal S5 that supplies with from the encoder 60 that is linked to reel-motor 54 output shafts, and count value is subtracted calculation.The count value of reversible counter 88 drives signal S13 to driver 90 supplies as batching.
Driver 90 is a kind of increase input signals, make reel-motor 54 rotating amplifying circuits, is timing when driving signal S13 from batching of reversible counter 88, and reel-motor 54 is just being changeed, if when negative, then makes reel-motor 54 counter-rotatings.Thus, can make the cloth fell of warp thread 12 move to the desired position.
In the illustrated example, since reversible counter 88 will with batch value that the difference of target value signal S12 with roller angle of revolution signal S5 be directly proportional batch driving signal S13, supply with to reel-motor 54 by driver 90, therefore, reversible counter 88 and driver 90 have constituted the direct type feedback circuit I that only contains proportional key element that is used for reel-motor 54 with encoder 60.Like this, produce error even batch between target value signal S12 and the roller angle of revolution signal S5, reel-motor 54 also is driven under the state of eliminating this error.
For example, reel-motor 54 adopts servomotor, and feedback circuit I is made of the known circuit of this motor of control.
Command generator 78 is in case start ready signal S7 to its input, then according to the startup delay time signal S8 that sets in the setting apparatus 80, after through the time t1 shown in Fig. 4 (E), startup control system sign on signal S9 is exported to switch shown in Figure 3 74.
The controller 100 of the controller 96 of control part 94 and startup control system portion 98 received from the tension signal S3 of warp tension sensor 44 outputs when as shown in Figure 3, eject control apparatus 40 was by running.Control part 94 comprises the base speed signal generator 102 of the main shaft gyration angle signal S4 of input filling density signal, main shaft 46 during running.
The structure of base speed signal generator 102 is identical with the basic revolution amount signal generator 84 that batches control device 62, plays a part same.Rate signal S14 that will be corresponding with base speed is to 104 1 sides' of portion that add input terminal output.Controller 96 and 100 receives tension force setting value T1 and the T2 that is set in tension force setting apparatus 106 and 108 respectively.
Add 104 couples of rate signal S14 of portion and revisal rate signal S15 adds, and rate signal S16 is to switch 74 outputs in the time of will turning round usually.
Press after the movement buttons 72, in case elapsed time t1, then command generator 78 is exported (with reference to Fig. 4 (C)) with startup control system sign on signal S9 to switch 74.Switch 74 is changed to selection mode by the input of startup control system sign on signal S9 with startup control system portion 98, and rate signal S17 exports to coil diameter retriever 110 as rate signal S18 in the time of will starting.
When no matter being when starting or usually running, the value of the rate signal S18 that is selected by switch 74 all is with suitable from the speed of sending axle 14 warp thread of sending 12.But, reduce gradually along with sending of warp thread 12 owing to send the warp thread coil diameter of axle 14, in order to keep necessarily, must carry out revisal to the rotating speed of sending axle 14 according to coil diameter from the warp thread sendout of sending axle 14.Therefore, according to by the coil diameter signal S1 of volume, the rate signal S18 from switch 74 is carried out revisal through sensor 38 detections.
Thus, eject control apparatus 40 is during time t3 (with reference to Fig. 4 (E)) only, and controller 100 is placed selection mode, makes to send motor 34 and carry out warp tension adjustment action.Time t3 is set at the different time according to internal gain of tension force deviation, controller etc.Therefore, time t3 obtains some kinds to the different conditions of warp tension value by actual measurement in advance.
Even carried out cloth fell revisal action, also to carry out warp tension adjustment action, so that the tension force setting value T2 that the tension adjustment of warp thread 12 is set in the tension force setting apparatus 108.
The rotating speed of sending the output shaft of motor 34 is detected by the tachogenerator 42 that links this output shaft, as sending the input terminal output of speed of gyration signal S2 to subtracting section 112 the opposing party.
Subtracting section 112 deducts from the rate signal S18 that selects and sends speed of gyration signal S2, and its result to driver 114 outputs, is driven sending motor 34.Like this, the inscape that eject control apparatus 40 is sent the feedback circuit II of motor 34 as control works, and making from the speed of sending axle 14 warp thread of sending 12 becomes the corresponding speed with revisal signal S19.
As shown in Figure 4, time t1, t2, t3 are pre-set in main control unit 70, cloth fell revisal amount setting apparatus 82 and the setting apparatus 80, make warp tension adjustment action after cloth fell revisal release, finish (relation that specifically, has t2＜t1+t3).Like this, have the time t4 (after pressing movement buttons 72 back elapsed time t1, till pressing movement buttons 72 back elapsed time t2) of repetition.Thus, loom 10 is the revisal cloth fell both, adjusts warp tension again.
Preferably corresponding in advance tension force deviation, with the relational databaseization of time t3 and time t1, detected deviation is corresponding when being about to start preparation with loom 10, and t1 80 readout time decides time t1 from setting apparatus, each action of beginning.
But even carry out cloth fell revisal action and warp tension adjustment action during same, the position of fell 22 can not be subjected to the influence of warp tension adjustment action basically, is mainly adjusted by cloth fell revisal action.
At length say again, as previously mentioned, certainly sending axle 14 between the fell 22, exist the machine part of heald frame 18, reed 20, belt, menopause tablet etc., because of producing friction between these parts and the warp thread 12, even send axle 14 revolutions and warp thread 12 is moved so make, what these moved almost can be absorbed by the friction of heald frame 18, reed 20 etc. all, and move the position of fell 22 the place ahead on the warp thread moving direction and rear hardly.
Again, because the intermediary between cloth beam 28 and the fell 22 is few, cloth beam 28 is little with the interval of fell 22, therefore, make under cloth beam 28 gyroscopic actions weave cotton cloth 24 towards warp thread moving direction mobile can be delivered to reliably weave cotton cloth 24 itself.Like this, by made cloth beam 28 revolutions by cloth fell revisal action, move to the upstream side or the downstream side of warp thread moving direction reliably the position of fell 22.Prevent the generation of thick and thin places thus reliably.
Press after the movement buttons 72, elapsed time t2, then cloth fell revisal release, but warp tension adjustment action is proceeded.But, even the position of fell 22 also can be offset hardly through warp tension adjustment action.
Again specifically, as mentioned above,, exist the machine part of heald frame 18, reed 20, belt, menopause tablet etc., rub because of producing between the existence of these parts and the warp thread 12 sending axle certainly 14 between the position of fell 22.Even send axle 14 and warp thread 12 moved, because of the friction of heald frame 18 and reed 20 etc. is difficult to reach exactly fell 22 so rotate.Like this, even carried out warp tension adjustment action, move hardly the position of fell 22, thereby prevent the generation of thick and thin places reliably.
Again, reach exactly and be wound on the warp thread of sending on the axle 14 12 owing to send axle 14 turning power, the length tension relation of therefore sending the turning power of axle 14 and warp thread 12 is clear and definite, is suitable for the adjustment of warp tension.
Behind the elapsed time t3, warp tension is adjusted release.Thus, cloth fell revisal action and warp tension adjustment action is temporary transient stops.
Then, main control unit 70 to switch 74 outputs, makes loom 10 beginnings running usually with CRANK PULSES S6.
As shown in Figure 3, switch 74 is by the input of input CRANK PULSES S6, and control part 94 places selection mode in the time of will turning round, and rate signal S16 exports to coil diameter retriever 110 as rate signal S18 in the time of will turning round usually.
As mentioned above, controller 96 becomes the form of the tension force setting value T1 that sets in the tension force setting apparatus 106 according to the tension value that makes warp thread 12, be transformed into and answer the suitable revisal rate signal S15 of rotating speed of revisal, will export to 104 1 sides' of portion that add input terminal through the revisal rate signal S15 of conversion.
Usually between on-stream period, Fig. 2 and basic revolution amount signal generator 84 and base speed signal generator 102 shown in Figure 3, respectively according to the angle of revolution signal S4 etc. of main shaft 46 in filling density, the revolution, will with along with woven 24 suitable basic revolution amount signal S10 and the rate signal S14 of translational speed of weaving cotton cloth, to add portion 86 and 104 the opposing party's input terminal output.
Again, drive amount signal generator 76 finishes because of cloth fell revisal action, so not to the 86 output cloth fell control signal S11 of portion that add.
Above cloth fell revisal action, be that the occasion that begins warp tension adjustment action after the cloth fell revisal action beginning, finishes cloth fell revisal action has then been made explanation, move but also can cloth fell revisal release after, begin the warp tension adjustment again.At this moment, also the signal of expression cloth fell revisal release (release) can be exported beginning warp tension adjustment action to eject control apparatus 40 from batching control device 62.
In the foregoing description, begin warp tension adjustment action again after being set at cloth fell revisal action beginning back elapsed time t1, when the time t3 of warp tension adjustment action than cloth fell revisal action time, t2 was much bigger the time, also can shorten time t1, perhaps further set t1=0 (promptly, cloth fell revisal action and warp tension adjustment action begins simultaneously) for.
Among the present invention, also can implement following distortion again.For example, the situation that the length between the adjustment period of can considering decrease warp tension according to the warp tension that takes place in the loom stopping period changes.Again specifically, when stopping platform for a long time, be not easy the generation problem, but when stop that the platform reason is repaired rapidly, the reduction amount of warp tension hour, warp tension adjustment action required during shorten.In other words, it is generally acknowledged that when reparation was carried out rapidly, the end of cloth fell revisal action was later than the end of warp tension adjustment action, thereby such in the past problem takes place.For this reason, preferably the departure of the warp tension before be about to start preparing little in, time expand t1, the end that makes the end of warp tension adjustment action be later than cloth fell revisal action gets final product.Preferably in the setting apparatus 80 that variation in warp tension signal input is shown in Figure 2, a plurality of time t1 of corresponding in advance tension force deviation setting, when starting ready signal S7 and taking place, according to the tension force deviation of aforementioned detection, can select the time corresponding difference is time t1.
With reference to Fig. 5, eject control apparatus 40 and batch the value of control device 62 according to warp tension, the value of the cloth fell control signal S11 of change cloth fell revisal action was made adjustment to the time of cloth fell revisal action.
At length say again, the startup control system device 98 of eject control apparatus 40, in the difference Δ T of tension value from the tension signal S3 that detects by warp tension sensor 44 to controller 100 that export tension value T2 that sets in the tension force setting apparatus 108 and, to 116 outputs of speed retriever.
Speed retriever 116 is accelerated cloth fell revisal action for the minimizing of the difference Δ T of corresponding tension value, the value K that ratio that will be corresponding with the difference Δ T of tension value 1 is big, as speed command signal S20 to 76 outputs of drive amount signal generator.The relation of Δ T and K both can be the relation with table of being measured by experiment in advance, also can be to have by the represented relation of specific calculating formula.At this moment, the time t3 of warp tension adjustment action is set to necessarily.
In a single day drive amount signal generator 76 has imported speed command value signal S20, then the value of setting in the cloth fell revisal amount setting apparatus 82 is amplified K doubly, exports to the portion 86 that adds as cloth fell control signal S11.Like this, cloth fell control signal S11 becomes than the big value of cloth fell control signal S11 from drive amount signal generator shown in Figure 2 76 outputs.In other words, the rotating speed of the cloth beam 28 the when rotating speed of the cloth beam 28 when the cloth fell revisal is moved is made as than common cloth fell revisal action is fast, thereby has shortened the required time of cloth fell revisal action.Thus, after cloth fell revisal release, make warp tension adjust release.
Among Fig. 6, transverse axis is represented time shaft, and the longitudinal axis is represented and the corresponding coiling speed of exporting from drive amount signal generator 76 of cloth fell control signal S11.The area of the part of being represented by oblique line is then represented the amount of movement (cloth fell revisal amount) of fell 22 positions.
As can be seen,, then can shorten the time t2 of cloth fell revisal action from Fig. 6 (A) and (B) if accelerate coiling speed.Like this, by shortening cloth fell revisal actuation time, the concluding time that can postpone the tension adjustment action on apparent.
With reference to Fig. 7, Fig. 7 shows an example, eject control apparatus 40 and batch control device 62, setting value according to the setting apparatus 82 of cloth fell revisal amount, the value of rate signal S17 is adjusted the required time of time of warp tension adjustment action thus during the startup of change warp tension adjustment action.
When cloth fell revisal amount was set to higher value, the output valve of rate signal S17 when reducing the startup of tension adjustment action prolonged tension adjustment actuation time, the concluding time of postponing the tension adjustment action thus on apparent.
Specifically, when the time t2 of cloth fell revisal action and the setting revisal amount of cloth fell irrelevant (promptly, become according to the time t2 that makes cloth fell revisal action the occasion of the speed drive that certain requirement calculates), the gain signal 21 of the gain retriever 118 of the controller 100 of working during with startup reduces.
The anti-locking apparatus of thick and thin places shown in Figure 7 also can be, obtain the time t3 of warp tension adjustment action earlier, by with the relation of the time t2 of cloth fell revisal action, by the gain signal S21 of change tension adjustment action or the speed command value signal S20 of cloth fell revisal action, make the concluding time of tension adjustment action be later than the concluding time that the cloth fell revisal is moved.
At length say again, batch control device 62 value of setting in the cloth fell revisal amount setting apparatus 82 is exported to gain retriever 118.Gain retriever 118 will be exported to controller 100 by suitable gain signal S21 with the positive real number K2 below 1 according to the value of setting in the cloth fell revisal amount setting apparatus 82.
In a single day controller 100 has imported gain signal S21, then with the value of tension force setting apparatus 108 with the difference of tension signal S3, multiply by the COEFFICIENT K 2 of the value with less than 1 again, rate signal S17 output during as startup.The value of rate signal S17 when like this, rate signal S17 becomes startup less than controller 100 outputs shown in Figure 3 during startup.In other words, the rotating speed of sending axle 14 when making warp tension adjustment action is slower than the rotating speed of sending axle 14 when common tension adjustment is moved, prolongs the required time of warp tension adjustment action.Thus, by prolonging the required time of warp tension adjustment action, can on apparent, accelerate the concluding time that the cloth fell revisal is moved.
In above-mentioned Fig. 6 and Fig. 7, when cloth fell revisal amount is set to higher value, then change speed revisal amount, gain.But the present invention also can do following distortion.
For example, it is generally acknowledged to result from the slippage of the warp tension that takes place in the loom stopping period that the length between the adjustment period of warp tension changes.Again specifically, be not easy the generation problem though stop the occasion of platform for a long time, when stopping that the platform reason is repaired rapidly and the slippage of warp tension more after a little while, warp tension adjustment action required during shorten.In other words, it is generally acknowledged the occasion of repairing rapidly, the end meeting of cloth fell revisal action is more late than the end of warp tension adjustment action, thereby such in the past problem takes place.
For this reason, the occasion execution speed revisal that preferably departure of the warp tension before being about to start preparation is little, speed when moving to reduce the cloth fell revisal, the gain of retriever perhaps reduces to gain, to reduce to send the rotating speed of axle, as long as make the end of warp tension adjustment action be later than the end of cloth fell revisal action.Preferably in Fig. 6 and speed retriever shown in Figure 7, gain retriever, in input variation in warp tension signal, the good multiple augmenting factor of corresponding in advance tension force deviation setting, gain, so that when starting ready signal S7 generation, can select corresponding augmenting factor, gain according to the tension force deviation of aforementioned detection.
Also can be to inferring each actuation time of cloth fell revisal action and warp tension adjustment action, according to the time difference between the elementary period that determines cloth fell revisal action and warp tension adjustment action each actuation time, begin cloth fell revisal action and warp tension adjustment action according to the time difference.
Also can be with the time difference of the time started of time started of cloth fell revisal action and warp tension adjustment action, be made as 1 value, perhaps be made as the deviation generation key element of corresponding warp tension from predefined value and the value selected.For example, as the deviation generation key element of warp tension,, also can consider to have warp tension setting value, Warp opening amount etc. except stopping the platform reason of aforesaid loom.For the factor relevant, can consider spindle crank angle under the loom halted state etc. with the Warp opening amount.
Also can make the rotating speed of the cloth beam 28 in cloth fell revisal when action, the rotating speed of the cloth beam 28 during faster than common cloth fell revisal action, with shorten cloth fell revisal action required during.
Also can make the warp tension adjustment rotating speed of sending axle 14 in when action, the rotating speed of sending axle 14 when being slower than common cloth fell revisal action, with prolong warp tension adjustment action required during.
The speed difference of the rotating speed the during rotating speed of the cloth beam 28 in the time of also the cloth fell revisal can being moved and common cloth fell revisal action, as 1 value, perhaps the deviation generation key element of corresponding warp tension and the value selected from predefined value.
Also can be in starting between the warming-up exercise on-stream period, make cloth beam 28 forward direction or rear to revolution.Again specifically, cloth fell revisal action is not limited to when loom starts warming-up exercise and only turns round 1 time, also 2 times.In revolution 2 times the time, can be to be same direction (for example 2 times all is forward or reverse) 2 times but revolution or also different each other direction (from just going to counter-rotating or changeing) from just being inverted to.
To this, warp tension adjustment action both can be carried out with each cloth fell revisal action, also can be in the end carries out during 1 time cloth fell revisal action.For cloth fell revisal action, be not limited to 2 times, also more than 3 times.
The detection of warp tension is that the load of roller 16 detects after being acted on by 44 pairs of warp tension sensors, detects all tension force of warp thread thus, but also detects the tension force of the warp thread 12 of a part.
Detection effect also detects the deformation of back roller 16, the form of displacement in the warp tension sensor 44 of the load of back roller 16.
But warp tension sensor 44 is set at detection effect on the back roller 16 of load of back roller 16, but also can be arranged on the warp thread 12 or the 24 arbitrary parts that contact of weaving cotton cloth on.
Fig. 1 is to use split type circuit to cloth beam 28 with send axle 14 and control to loom 10 shown in Figure 4, but also can use single control circuit to control cloth beam 28 and send axle 14.
The present invention also is applicable to the loom 10 of fancies, for example, is switching in the loom of multiple filling density according to picking number of pick selectivity, and the cloth fell revisal actuating quantity during startup is not that certain value but filling density when starting are set.Again, come in the loom of conversion warp thread goal tension the target warp tension when the target warp tension corresponding with filling density during according to startup set and started in switching according to filling density.
The internal structure of controller 96 is PID control, but also known controller also can be the control that simplifies.As the control that simplifies, both constitute, also the speed value of low speed is eliminated direction output, arrived and stop this output after setting tension force towards the tension force deviation by the comparator that warp tension and setting value are made comparisons with according to the speed command output circuit of comparative result switch speed instruction output state.
The present invention is not limited to the foregoing description, only otherwise break away from its aim, can do various changes.
(explanation of symbol)
I, II feedback circuit
S0 presses signal
S1 coil diameter signal
S2 sends tach signal
The S3 tension signal
S4 main shaft gyration angle signal
S5 roller angle of revolution signal
The S6 CRANK PULSES
S7 starts ready signal
S8 starts the delay time signal
S9 startup control system sign on signal
S10 revolution amount substantially signal
S11 cloth fell control signal
S12 batches target value signal
S13 batches the driving signal
The S14 rate signal
S15 revisal rate signal
Rate signal when S16 turns round usually
Rate signal when S17 starts
The S18 rate signal
S19 revisal signal
S20 speed command value signal
The S21 gain signal
T1 from beginning cloth fell revisal action to begin the time that the warp tension adjustment moves (during)
The time of t2 cloth fell revisal action (during)
The time of t3 warp tension adjustment action (during)
The time that revisal action of t4 cloth fell and warp tension adjustment action repeat (during)
10 looms
12 warp thread
14 send axle
16 back rollers
18 heald frames
20 reeds
22 fells
24 weave cotton cloth
26 deflector rolls
28 cloth beams
30 pressure rollers
32 batching axles
34 send motor
36,56 gear mechanisms
38 volumes are through sensor
40 eject control apparatus
42 tachogenerators
44 warp tension sensors
46 main shafts
48,50 motion changing mechanism
52 weft yarns
54 reel-motors
58,60 encoders
62 batch control device
64 batch the moment of torsion guiding mechanism
66 Synchronization Control portions
68 cloth fell control parts
70 main control units
72 running buttons
74 switchs
76 drive amount signal generators
78 command generators
80 setting apparatus
82 cloth fell revisal amount setting apparatus
84 basic revolution amount signal generators
86 portions that add
88 reversible counters
90,114 drivers
Control part during 94 runnings
96 controllers
98 startup control system portions
100 controllers
102 base speed signal generators
104 portions that add
106,108 tension force setting apparatus
110 coil diameter retrievers
112 subtracting sections
116 speed retrievers
Claims (6)
1. a thick and thin places that after startup warming-up exercise finishes loom is turned round usually prevents method, and described startup warming-up exercise comprises: rotate cloth beam, make cloth fell move to the cloth fell revisal action of institute's allocation; And rotate the warp tension adjustment action send axle, warp tension to be adjusted to institute's definite value; It is characterized in that described method comprises following feature:
After finishing described cloth fell revisal action, finish described warp tension adjustment action and finish described startup warming-up exercise.
2. the method for claim 1 is characterized in that, also comprises following feature: after the described cloth fell revisal action of beginning, begin described warp tension adjustment action again.
3. method as claimed in claim 2 is characterized in that, also comprises following feature: after described cloth fell revisal release, begin described warp tension adjustment action again.
4. method as claimed in claim 2, it is characterized in that, also comprise following feature: each actuation time of inferring described cloth fell revisal action and described warp tension adjustment action, according to the time difference of the time started that determines described cloth fell revisal action and described warp tension adjustment action each actuation time, determine the time started of described warp tension adjustment action according to the described time difference.
5. method as claimed in claim 4, it is characterized in that, with the time of the described cloth fell revisal action of beginning and the time difference of the time of the described warp tension adjustment action of beginning, be made as 1 value, perhaps be made as the value of from predefined value, selecting according to the key element of described warp tension generation deviation.
6. a thick and thin places is prevented locking apparatus, comprising:
Rotate cloth beam, make cloth fell move to the cloth fell retriever of institute's allocation;
Rotation is sent axle, warp tension is adjusted to the warp tension adjuster of institute's definite value; And
After the startup warming-up exercise of described cloth fell retriever and described warp tension adjuster finishes, make loom begin the main control unit of running usually, it is characterized in that,
Described main control unit finishes described warp tension adjustment action and finishes described startup warming-up exercise after finishing described cloth fell revisal action.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003073933A JP4142474B2 (en) | 2003-03-18 | 2003-03-18 | Method and apparatus for preventing weaving of loom |
| JP2003073933 | 2003-03-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1532315A true CN1532315A (en) | 2004-09-29 |
| CN1306087C CN1306087C (en) | 2007-03-21 |
Family
ID=32821315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100399357A Expired - Fee Related CN1306087C (en) | 2003-03-18 | 2004-03-12 | Method and device for preventing thick and thin section of loom |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1460158A3 (en) |
| JP (1) | JP4142474B2 (en) |
| KR (1) | KR100535720B1 (en) |
| CN (1) | CN1306087C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103422232A (en) * | 2012-05-25 | 2013-12-04 | 津田驹工业株式会社 | Method for urging warp yarns in warp tension adjusting device of cord fabric weaving apparatus and warp tension adjusting device |
| CN105624892A (en) * | 2015-04-08 | 2016-06-01 | 杭州创兴云智能设备科技股份有限公司 | Quantitative yarn feeding device |
| CN105734791A (en) * | 2015-04-08 | 2016-07-06 | 杭州创兴云智能设备科技股份有限公司 | Quantitative yarn feeding method of yarn feeding device |
| CN105755650A (en) * | 2015-04-08 | 2016-07-13 | 杭州创兴云智能设备科技股份有限公司 | Quantitative yarn feeding device for weaving carpets |
| CN107794630A (en) * | 2015-12-01 | 2018-03-13 | 南通职业大学 | A kind of packed cloth double-layer integrally weaving control method of drum |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006336157A (en) * | 2005-06-02 | 2006-12-14 | Tsudakoma Corp | Apparatus for adjusting fabric mouth position |
| TW200907134A (en) * | 2007-08-09 | 2009-02-16 | Zheng Chuan Tian | Ribbon roller set transmission device of ribbon loom |
| CN104762738A (en) * | 2015-04-03 | 2015-07-08 | 苏州科明纺织有限公司 | Automatic batching device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2565004B2 (en) * | 1991-03-06 | 1996-12-18 | 株式会社豊田自動織機製作所 | Weaving bar generation prevention device for loom |
| DE59307142D1 (en) * | 1992-04-22 | 1997-09-25 | Rueti Ag Maschf | Method for starting a loom and loom for performing the method |
| JP2003049347A (en) * | 2001-08-08 | 2003-02-21 | Tsudakoma Corp | Method and system for operating loom |
| JP2003221759A (en) * | 2002-01-29 | 2003-08-08 | Tsudakoma Corp | Method and apparatus for preventing weaving bar at weaving machine |
-
2003
- 2003-03-18 JP JP2003073933A patent/JP4142474B2/en not_active Expired - Fee Related
-
2004
- 2004-01-19 EP EP04001018A patent/EP1460158A3/en not_active Withdrawn
- 2004-01-28 KR KR10-2004-0005276A patent/KR100535720B1/en not_active IP Right Cessation
- 2004-03-12 CN CNB2004100399357A patent/CN1306087C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103422232A (en) * | 2012-05-25 | 2013-12-04 | 津田驹工业株式会社 | Method for urging warp yarns in warp tension adjusting device of cord fabric weaving apparatus and warp tension adjusting device |
| CN103422232B (en) * | 2012-05-25 | 2016-03-02 | 津田驹工业株式会社 | The warp thread force method of the warp tension regulator of cord fabric weaving device and warp tension regulator |
| CN105624892A (en) * | 2015-04-08 | 2016-06-01 | 杭州创兴云智能设备科技股份有限公司 | Quantitative yarn feeding device |
| CN105734791A (en) * | 2015-04-08 | 2016-07-06 | 杭州创兴云智能设备科技股份有限公司 | Quantitative yarn feeding method of yarn feeding device |
| CN105755650A (en) * | 2015-04-08 | 2016-07-13 | 杭州创兴云智能设备科技股份有限公司 | Quantitative yarn feeding device for weaving carpets |
| CN105734791B (en) * | 2015-04-08 | 2017-05-17 | 杭州创兴云智能设备科技股份有限公司 | Quantitative yarn feeding method of yarn feeding device |
| CN107794630A (en) * | 2015-12-01 | 2018-03-13 | 南通职业大学 | A kind of packed cloth double-layer integrally weaving control method of drum |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100535720B1 (en) | 2005-12-09 |
| EP1460158A3 (en) | 2005-02-16 |
| CN1306087C (en) | 2007-03-21 |
| EP1460158A2 (en) | 2004-09-22 |
| KR20040082276A (en) | 2004-09-24 |
| JP4142474B2 (en) | 2008-09-03 |
| JP2004277965A (en) | 2004-10-07 |
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