CN1029137C - Spinning method with high-speed winding - Google Patents

Abstract

The invention relates to a thread (1) and a transport device (7) on which the thread can be wound at a winding angle alpha, onto which the thread is wound with a high thread tension and is subsequently drawn off with reduced thread tension by a rotationally driven drum of a winding device, and onto which the thread is wound back and forth and wound by means of a drive (3). The peripheral speed of the transport device is greater than the winding speed, and the yarn has a slip such that the frictional behavior of the yarn on the transport device is a dry-friction frictional behavior.

Description

Method for winding yarn rapidly

The present invention relates to a kind of from the continuous synthetic method of yarn of district or drawing zone extraction of spinning.

Such method is known, for example at magazine " Chemiefasern/Textil Industrie " in September, 1991 P1002,1004 illustrated (can also with reference to DE-A2204397).

Known like this method is the grading yarning method that is used to make a kind of multi-fibre line, wherein filament is pulled out from a spinning-nozzle by the transport of a high speed and is then reeled with a coiler device, this transport is made up of two draw-off godets, and these two draw-off godets are always with 180 ° of these yarns of reeling.This just means, the yarn tension that is higher than draw-off godet has the lower tension force of pulling out at first, this pulls out tension force by windage and other rubbing action and continuous raising up to the yarn tension of doff, utilizes yarn tension yarn doff on draw-off godet of this doff when arriving draw-off godet.This yarn tension so increases therefrom, promptly produces yarn completely a kind of or that partly stretch and newly spin.Also having so high yarn tension to make reel for yarn is undesirable and undesirable on reel.Method following the instructions, these two draw-off godets have the solid chromium of glossy surface, have the frictional resistance of a kind of friction of motion and friction of rest thus between yarn and draw-off godet surface.In order to reduce necessary yarn tension, the spinning stretching-machine needs two draw-off godets or has the draw-off godet of wiring round, for the tension force that can reach enough yarn reduces and yarn good homogeneous (black this paricular value), when winding speed surpass 5000m/minute and when utilizing this method processing to spin, yarn is made up of very thin monofilament, this shortcoming is arranged, be that the monofilament that monofilament fractures or fractures not only no longer intermittently is fed forward by draw-off godet, and by being enclosed in lead dish ambient air stream traction and having formed a doff accumulation on draw-off godet, this spinning is piled up will cause operation disruption.Special difficulty also is the joint of yarn, and here because speed difference is big, yarn is broken.Very difficulty also is transport and speed adjusting and the speed adjusting of coiler device and reciprocating transmission device on the other hand on the one hand.Must adjusting independent of one another also must prevent tear fracture and lax (low stress) of yarn to this speed, point-device regulate each other and because tear fracture or line tube form the yarn that brings loses or operation disruption.Particularly the peripheral speed of reel must be quite little than the peripheral speed of transport.Yet on the other hand the peripheral speed of reel in fact allow to be not less than the peripheral speed of reel and back and forth transmission speed geometry and, like this, yarn reel sidewards connects up back and forth.Last this method is difficult to the tension force that obtains wishing and adjusting that can not be stable.

Such shortcoming can be avoided with so-called " draw-off godet is lax ".Simultaneously yarn directly by reel by pulling out in the spinning-nozzle, this has also produced shortcoming certainly, promptly spinning-nozzle with reel between keeping yarn tension, can be fully or the part stretching for yarn, this yarn tension is necessary.Be used for reel for yarn around yarn tension higher than the yarn tension of the necessity that is used to stretch, so the lax spinning of draw-off godet only to utilize a kind of such doff device be possible, this device has comprehensive minimizing tension force draw-off godet.This being had one is Bag.850=US-B3.861.607 according to DE-C2345898(crust mug(unit of measure) 850) the doff device, doff utilizes winding angle to be 60 to 120 ° on reel to center on a winder groove drum and carry out guide before the doff in this device, this winder groove drum is driving with the peripheral speed greater than reel, the spinning that a kind of like this yarn tension reduces and a kind of draw-off godet is lax just becomes possibility, has therefore realized being used for the winder of the lax type of draw-off godet.

A kind of effect is when reaching in according to the doff device of DE-PS3016662, be that yarn is at first through a reciprocating transmission device, and then through a level and smooth roller, this roller rotates with the peripheral speed that is higher than the doff reel, and then lead through second reciprocating transmission device again, and reel also leads.Owing to utilized the winding of level and smooth roller and 180 ° here, therefore when forming when reeling here or a kind of danger and the difficulty when also being the yarn dividing sinker.Also have to utilize and to keep very accurate with respect to reel and reciprocal transmission speed adjusting.

The target of this known method is to reach in operating process fully or drawing partly, and can stop significantly yarn tension reduction on reel simultaneously.If a kind of draw-off godet is suitable, but can cause some difficulties that some illustrated.

Therefore task of the present invention is, has possessed the possibility that yarn tension reduces before yarn enters the doff device, can avoid some shortcomings of known draw-off godet simultaneously again.

The solution of this task is partly provided by the feature of claim 1.That is, from the method that spinning is distinguished or drawing zone is extracted continuous synthetic yarn (1) out, wherein, yarn (1)

Utilize a kind of yarn to twine thereon transport (7) with a winding angle α, utilize higher yarn tensile stress on this transport doff and then the reel that drives of a rotation by coiler device extract out from this transport with the yarn tension that reduces, utilize a reciprocating transmission device (3) forming under the condition of a reciprocal transmission triangle winding thread on wiring (reciprocating motion) back and forth and the reel perpendicular to this reel

It is characterized in that, the winding angle α and the peripheral speed of this transport are so regulated, be that peripheral speed is greater than the yarn speed on the transport (winding speed), and there is such slip in this yarn, and promptly the friction behavior of yarn on transport is a kind of friction behavior (with the irrelevant sliding friction of speed) of dry friction.

A transport is by a driven roller, and particularly two driven rollers are formed, and this two roller is configuration continuously, and yarn is with 45 ° winding angle winding always.Total winding angle is in one case greater than 90 °, and this winding angle is starkly lower than 270 ° and be preferably lower than 270 °.Transport drives with certain peripheral speed greater than yarn speed thus, this yarn speed on transport during doff yarn have, a speed difference (slips) is arranged, and the generation sliding friction between transport surface and yarn.Have under the situation of speed difference, the coefficient of friction of sliding friction is unsettled, depends on the size of slip and changes, and be unduplicated.Therefore draw-off godet and transport with regard to relevant they rubbing method and dispose a kind of surface.And yarn surrounded by many doff, and sliding friction just can have been avoided like this.When speed difference (slip) at least greater than 3% of winding speed, yet more preferably greater than 5% o'clock, and winding angle regulates in given zone accordingly, and just expectation reaches, and yarn is equivalent to the actual friction behavior of object when the sliding friction of drying that be equivalent to of friction behavior on transport surface.

This object friction behavior when the sliding friction of drying is characterised in that, this coefficient of sliding friction is less than adhering to coefficient of friction, this coefficient of sliding friction and speed are irrelevant in addition, this just means, it is irrelevant and be recursive to act on resistance in the moving object and speed, this means, on yarn with the vibration of sliding irrelevant act on a constant frictional force all the time, this frictional force causes a kind of exactly determined yarn tension to reduce.This like this yarn tension reduces with yarn speed irrelevant, therefore with irrelevant at the lip-deep relative velocity of transport.Meaning of the present invention is, this not dependence is necessary to a transport that slides, and should reduce by this slip delivered yarn tension force, in addition, a sliding area is arranged in this transport, at this region memory in this not dependence.Reach thus, produce tangible yarn tension on the one hand and reduce, the adjusting of the speed of transport is not critical fully on the other hand, and is just passable as long as the adjusting of this speed only is higher than the critical value that provides.Opposite with the application target of known method and known transport and draw-off godet, this surface allows the less coefficient of friction with respect to yarn, like this should the surface be smooth anything but or the pool is arranged, but coarse lacklustre wearing face, for example this class surface can be the metal oxide coating of being produced by plasma.Particularly advantageous is to utilize liquid to carry out yarn treatment before entering transport, and coefficient of friction is just little like this.A kind of coefficient of friction that is used for sliding friction is 0.2 to be best.Eytelweinsche coefficient in this device (M=E μ α, μ is a coefficient of friction here, α is a winding angle) and be not more than 4, preferably be not less than 3%.

The another one key character is, transport is a reciprocal transmission triangle, and the lax of yarn occurs on the thread-carrier head, and this thread-carrier head has constituted the top of reciprocal transmission triangle.As everyone knows, the reciprocal transmission of thread-carrier has higher reciprocal cloth linear velocity during perpendicular to rotation direction when yarn, and the reciprocating motion triangle that draws simultaneously has the yarn tension of the fluctuation that has the yarn tension peak value at the end regions of back and forth transmission.Can avoid this yarn tension peak set and form higher yarn tension with the method for this suggestion.This heavily stressed yarn is produced by spinning-nozzle when stretching after doff, and therefore this yarn tension peak value and yarn qualities can not be adversely affected.

The scope of this total winding angle preferentially provides according to two standards, and a standard is fully and significantly to reduce yarn tension, and another standard is tranquil glitch-free spinning line.Winding angle should be too not big, and it is influential to the minimum of a value of sliding, and the winding angle of regulation must be able to obtain the sliding friction behavior as in the drying friction.This boundary provides in claim 2.

Must all there be sliding friction in speed difference between the superficial velocity of the winding speed of yarn on the transport and transport under each situation, the part of on transport, not having simultaneously tension during doff, and the increase by superficial velocity or reduce to adapt with it, this adaptation must be avoided.On the one hand this surface minimum of a value that transport is slided and on the other hand yarn be different to the minimum of a value of yarn.Yet can confirm that Tiao Cha operating position and claim 3 adapt so far, this speed difference, just sliding is 3%, preferably should be adjusted to greater than 5%.This shows can reach stable spinning line greater than 3% zone under each situation, and when being 5% to 20% when sliding, the superficial velocity of conveying arrangement does not exert an influence to yarn tension, be the most stable drive condition sliding in greater than 3% to 5% driving scope promptly, this is to have yarn tension best and that just keep to reduce.This just forms yarn speed and yarn qualities thus is constant, and the slip size no longer includes influence.Also point out, in the driving scope of sliding like this, when total winding angle was 90 °, doff tension force and the tension force that reels off raw silk from cocoons between the tension force reduced 30%, when total winding angle is 135 °, cause yarn tension to reduce 40%, and when 225 ° of winding angles, cause yarn tension minimizing 70%.This expression yarn tension reduces obviously relevant with winding angle, and can be to regulating that it carries out simply and repeats by regulating winding angle.

At present people before transport and carry out another kind of yarn treatment afterwards, this is corresponding with claim 4, at first regulates suitable coefficient of friction again.Promptly, any one described method according to claim 1 to 3, it is characterized in that, this yarn was so handled before draw-off godet at doff, the particularly wetting action by a kind of liquid, promptly this yarn has coefficient of friction less than 0.4 with respect to the surface of transport in the drive area, is preferably less than 0.25.

Any one described method according to claim 1 to 4 is characterized in that, this yarn utilizes a draw-off godet supply on transport, the as many as yarn of the peripheral speed of this transport on this draw-off godet winding speed or to greater than 2%.

According to the method for claim 1, at first have high-speed yarn monofilament by extracting out in the spinning-nozzle, and simultaneously all or stretching partly.The advantage of transport of the present invention is, can not form to twine on this transport to pile up, and high yarn tensile stress acts on and is used on the yarn stretching on the one hand, and on the other hand, may reach yarn tension in the doff district and reduce.

Special when the preparation technique yarn, the thickness of being not only it that looms large also has extra high intensity.Require the monofilament of yarn to extract out by the nonslipping general draw-off godet that repeatedly twines, and stretch between two draw-off godets with a shield segment or with two shield segments in case of necessity with great friction coefficient from spinning-nozzle.In this case, the yarn in doff district must be by a kind of draw-off godet feed with great friction coefficient that does not so slide and repeatedly twine, but shortcoming with prior explanation, be that this draw-off godet is because low doff tension force is easy to produce the winding accumulation, it is suitable using transport of the present invention to reduce yarn tension between the draw-off godet in this doff district and thread guide head owing to this reason, because utilize this transport to make the yarn that reaches enough yarn tensions from draw-off godet, extract out, but this coiling is carried with lower yarn tension.

According to the suggestion of claim 7, between transport and yarn thread-carrier head, form a reciprocal transmission triangle, be provided with a kind of heat treatment by a kind of vapour coating nozzle.

Utilize a kind of like this method, particularly polyamide yarn to produce by high-speed spinning with higher speed greater than the 3500m/ branch, but same polyester yarn, speed doff in this case to divide greater than 5000m/.In order to produce the yarn of full orientation, recommend simultaneously, a heat pipe is set before transport, as (Ba Mage 1641, or 1584 or 1571 and U.S. Pat 3,229 in the US-PS US Patent specification, 330) such (Bag.1641 or 1584 or 1571 of explanation in, also referring to US3,229,330).

Produced particularly nylon by the steam treatment that inserts in the middle of a kind of, also has polyester, the speed spinning that these divide to surpass 5000m/, its advantage is, the contraction tendency that causes owing to stretch is lax, and a kind of contraction that has produced intensity like this, promptly according to good a kind of yarn of its strength character and shrinkage.

Last this is possible with recommendable, promptly between the yarn thread-carrier head of transport and reciprocal transmission triangle, a so-called jet nozzle perhaps is set after equipment for steam treatment, in this nozzle, blow out a kind of facing to the air-spray of yarn perpendicular to the spinning line direction, and form the single kink that distributes through length of yarn thus, so just improved the combination of individual thread in the yarn.

Be particularly suitable for so-called " short flow process spin second " according to method of the present invention, this transport is configured in spinning-nozzle not only in the small distance less than 2m simultaneously.This yarn promptly can produce a kind of enough coolings by so fast being drawn out of this transport in so short distance.Also cause a kind of big air drag simultaneously, this drag effect on yarn, this yarn that utilizes this resistance usually and the amount of residual heat will that stays almost can stretch fully on yarn.Here speed surpasses the 7000m/ branch.

This point of the present invention is wonderful, promptly slide to increase in fact to be no more than 2% up to now, but preferably surpass 3%, draw-off godet after or the variation of the yarn tension after the transport no longer relevant with the superficial velocity of draw-off godet.Therefore have a highly stable scope according to this method, go back gradient, and cause the phenomenon of operation disruption in fact to eliminate owing to monofilament fractures and/or twines to pile up because of transport.The size of yarn tension and winding angle α can monodrome stable determining.Although low yarn tension twines the danger of piling up because the size of sliding also can form simultaneously on transport, this danger also can be eliminated.This method can realize that again a kind of very large tension force reduces, and first draw-off godet that moves in adhering to the friction scope simultaneously has the advantage that sizable yarn tension reduces.This second draw-off godet causes that another yarn tension reduces and the homogenising and the stabilisation of operating condition.Because big tension force reduces the explanation post-processing approach that this method is specially adapted to access after the stretching flow process, can advise a kind of shrink process between transport and thread guide head, wherein yarn is subjected to a kind of heat effect and/or the processing of a kind of jet.Air-spray is perpendicular to yarn axis and the combination that causes a kind of individual thread thus in this processing.

Can be described as pointing out according to method of the present invention, can regulate method parameter, especially yarn tension, yarn speed with repeatability.Present a kind of situation of imagination then, because surface state or also have yarn conditions to change will cause method parameter to change when long-time operation, and the change that causes yarn property thus.For eliminate above-mentioned these, also yarn tension is regulated in suggestion, is to regulate in the winding angle mode relevant with the yarn tension of measurement.And can regulate winding angle simultaneously by measurement mechanism, regulate like this, the roller of a transport or another roller, this another roller is arranged on before the transport, and under the yarn tension condition of relative yarn power, movably disposing, like this along with mobile winding angle changes.This is the form of another possibility, and a measurement sensing element can also be set, and utilizes an adjusting sensor, by the roller of these relative adjustment transports, thereby winding angle is changed.

Utilize transport of the present invention can realize that the short flow process that has related to is spinned and the new method modification of heat pipe spinning.This method modification is exactly the content of claim 11 and 12.That is: in accordance with the method for claim 6, it is characterized in that this yarn (1) is being carried by the narrow pipe of a heating before through transport (7), and heats with the temperature greater than 90 ℃.

In accordance with the method for claim 6, it is characterized in that this transport is positioned under the spinning-nozzle with the distance less than 3M, and drive with the peripheral speed of dividing greater than 6000m/.

According to claim 12 or 13 described methods, it is characterized in that between the thread guide head (4) of transport (7) and coiling, having a shrink process, particularly by a kind of heat or full closing and steam by the input heat.

As heat pipe spinning method, also have some shortcomings for short flow and method so far, promptly the yarn of the stretching of Chan Shenging is very easy to shrink, therefore caused very big difficulty during doff, utilized method modification of the present invention can realize that this contraction reduces, this is the content of claim 13.Another advantageous method modification is to be used for so-called weaving modification technology, and it is disclosed by DE-PS2632082.

Simultaneously a kind of newly spin filling in tubular type by a hot air nozzle with the spinning that stretches carried in the decatize device and is immersed in the yarn tube bar.

This yarn tube bar is drawn out of as the yarn tube bar by the device conveying of tubular type filling decatize with in by heat pipe under yarn and hot-air (steam) impact, and twines on chill roll.Before the unwinding of yarn tube bar, slough the yarn tube bar, produced very big yarn tension fluctuation simultaneously from chill roll.Therefore the yarn that curls will be accepted a kind of uniform jet processing, this is very difficult, because this yarn tension fluctuation causes the different jet of requirement, also have the middle access of a kind of feed draw-off godet between cooling and jet nozzle to change, because this draw-off godet has transmitted the yarn tension fluctuation.

Utilization just should be eliminated this difficulty according to the method for claim 14.That is: extract a kind of continuous synthetic yarn out from the yarn tube bar (33) of spinning one a Texturized device, yarn tube bar from a spinning-stretching-Texturized device utilizes a transport (7) to extract a kind of synthetic continuously yarn out especially, this yarn twines with a winding angle (α), this yarn is with higher yarn tension doff on transport simultaneously, and the jet processing (kink) of then bearing predetermined distance at an air nozzle, and then carry out doff, it is characterized in that, winding angle of transport (α) and peripheral speed are so regulated, promptly this peripheral speed is higher than the yarn speed (winding speed) on transport, and to have such slip, i.e. the slip behavior of yarn on the transport surface between the surface of transport (7) and yarn be a kind of friction behavior (with the irrelevant sliding friction of speed) of dry friction.

Especially this be should be pointed out that claim 14 can further constitute by the claim 2 and 3 that has illustrated.By a kind of application of nonslipping transport or particularly can realize a kind of further homogenising of yarn tension by its Yarn Brake.

In accordance with the method for claim 14, it is characterized in that be provided with one and twine feeding device (35) between transport and jet nozzle (16), this installs in fact nonslipping delivered yarn.

In accordance with the method for claim 14, it is characterized in that, between transport and jet nozzle, be provided with a Yarn Brake.

Following the present invention describes according to embodiment.

The front view of a kind of device for spinning of Fig. 1;

The side view of this device for spinning of Fig. 2;

Fig. 3～Fig. 9 b

Modification according to the device for spinning of Fig. 1 and Fig. 2;

Graph of a relation between Figure 10 thread tension and the slip;

Figure 11～Figure 12

The modification of other of adjusting thread tension;

Figure 13 is used to regulate other modification of thread tension.

Expressed embodiment according to figure at Fig. 1 and Fig. 2, a device for spinning that is used for four rhizoid lines 1 always has the winch spool doff on a total Spulspindelspulspindel 2.Before reeling, reciprocating transmission device 3 is arranged, install each one thread by this and carrying back and forth perpendicular to the reel of configuration.Each yarn reciprocal triangle that all draws between hard-wired thread-carrier head 4 and reciprocating transmission device 3 simultaneously.

Between collection thread guide 5 and thread guide head 4, a transport 7 is arranged.This collection thread guide 5 has such function, and promptly the phase mutual edge distance of yarn at first adapts with the degree of separation of spinning-nozzle, and the aperture of reel is to have reduced with respect to spindle 2.Transport 7 extends by total distance of collection thread guide 5.This transport 7 is made of two rollers 9 and 10, parallel to each other and height the disposing of misalignment of these two rollers, and the diameter of these two rollers is identical, and this can come as seen from Figure 2.

Fig. 1 has expressed a kind of bigger height difference, relates to two rollers 9,10 in order to clearer understanding.In fact this two roller is driving with the same peripheral speed of opposite direction.This roller is twined with the winding angle α that is at least 90 ° by silk thread, and has less coefficient of friction with respect to silk thread 1, and for example 0.2 to 0.6.This peripheral speed for example exceeds 3% to 30% than silk thread speed than higher.Silk thread speed be as the geometry of the reciprocal transmission speed of the constant peripheral speed of reel and reciprocating transmission device 3 and.

Two lead dishes of transport can respect to one anotherly move, for the silk thread that makes can be not in contact with lead dish on the reeling head, to this, for example (Fig. 9 a, 9b) rotates this lead dish 9,10 on the supporting disk 17 of a rotation is supporting.This lead dish has the motor that gear connects by one.Also the motor by these two independent controls drives.Like this, the speed of first lead dish 9 just can be adjusted to the speed that is lower than lead dish 10, like this, just exists on lead dish 9 and adheres to friction, just exists 3070 or bigger tangible sliding friction with slip on the contrary on lead dish 10.

In Figure 10, represented a figure, transport 7 shown in this figure and reel between the relation of the silk thread tensile force (F) that produces, the silk thread tensile force is represented with CN.As slip, here be direct superficial velocity (V before transport 7 _LW) deduct the silk thread speed (V of transport _F), again divided by representing with percentage after the so-called silk thread speed, i.e. S=(V _LW-V _F)/(V _F) * 100 ［ % ］

This is applicable to the situation be lower than some definite values when sliding.In this scope internal thread line drawing power and the relation between sliding be actually repetition and need not regulate, particularly when this slip is lower than a certain percentage with regard to especially like this.Draw a kind of repeatably relation that comes down to therefrom.Point out that also the silk thread tensile force is relevant with the size of sliding.Point out in this scope that at first the reduction of this thread tension or silk thread tensile force and winding angle α or itself and relevant utilize these winding angle silk threads to be wrapped on the roller of driving of transport 7.Yet also particularly point out, in fact when scope is the slip of 2.5% regulation, with winding switch.Have bigger slip and can not reduce the anti-power of stretching of silk thread again.For this reason, the drive point of transport of the present invention is positioned at such scope, and the silk thread tensile force of promptly measuring behind transport in this scope is no longer relevant with the size of sliding.Also exist a kind of sliding friction behavior between the surface of yarn and transport, this sliding friction behavior is actually and produces under dry friction condition.Reel and yarn just can obtain very high uniformity and quality by this way.Also be not have this danger on the other hand, occur promptly that monofilament fractures, monofilament, the monofilament that fractures or yarn form to twine and pile up on the roller of transport.

Some modification have been shown in Fig. 3 to Fig. 9.These variants table are shown regional I, II, III, get up with the dot-dash wire frame in Fig. 2 in these zones.A modification of in Fig. 3, having represented transport 7.Here, transport 7 is made up of the roller 10 of a driving, and yarn leads around roller 11 by a mistake of freely rotating on this roller 10.In order to reach advantage of the present invention, roller 10 adjusted that winding angle α is only driving.This slip also only produces on driven roller 10.

Fig. 4 shows another modification of transport.Here transport is made up of the roller 9 and 10 of two drivings.First roller 9 is driving with a kind of peripheral speed accurately, and this peripheral speed equals yarn speed (V _F).Therefore, a kind of winding angle α requires to reduce the yarn tension or the yarn tensile force of wishing, such winding angle must be adjusted on the roller 10, and the peripheral speed of roller 10 that relates to the slip of hope should be greater than the yarn speed or the superficial velocity of the roller 9 of front.

Fig. 5 and Fig. 6 have represented the modification of the regional II before the transport 7 of invention.According to Fig. 5 a heater is arranged before transport.Here also relate to a steaming chamber 12.A steam jet 13 is arranged in this steaming chamber, by this yarn of this nozzle carry and in this nozzle this yarn by the steam of heating or fullly close the steam collision.Can also enter heating tube a kind of overflow track or straightway at a position of this heater, carry by these yarns are discontiguous, and stretching and typing that yarn has taken place therein.Such heating tube is at DE.3808854(IP-1571/ crust mug(unit of measure) 1584(Bag.1584) in explanation.

A modification having represented regional II in Fig. 6, what wherein have the lead dish 14 of a heating and a configuration passes through roller 15, this lead dish being twined by yarn repeatedly.This lead dish has a speed, and this speed is corresponding with the winding speed that is come out by spinning-nozzle.Can realize the typing of the yarn of pulling out by this lead dish.Here temperature can be 90～240 ℃ according to the yarn types difference.

This yarn is then by drawing according to the transport shown in Fig. 2,3 or 4 latter linked.In this case, the superficial velocity of slip roller 10 (corresponding to the slip (S) of hope) is higher than the superficial velocity of the lead dish 14 of heating.Can guarantee on the one hand that thus yarn is drawn and can not formed winding reliably and piles up by the heating wires dish, this yarn tension or yarn tensile stress also can reduce just as explained above on the other hand.

In Fig. 7 and Fig. 8, illustrated in the transport 7 of invention and the modification of the regional III between the thread guide 4.

In modification, in this zone, disposed a jet nozzle 16 according to Fig. 7.This yarn is carried by a columniform passage in this jet nozzle, inserts an air conduit in its side direction.That point to by this conduit that the air-spray of yarn can be continuous or in certain distance, the yarn of knotting is each other blown open.Thus, just can produce the combination that makes between the easy monofilament of doff.

What appear at the jet nozzle place in the modification of Fig. 8 is one to have the steam jet of steaming chamber 12 and nozzle 13.In the yarn path of nozzle 13, there are one vapours or the full air-flow that closes steam to point to yarn.Because tension force reduces, this reduction, this reduction is caused by transport 10, can by a kind of such nozzle and steam treatment chamber is very effective shrinks.To this, select a kind of high winding for transport 7, like this, be low can shrinking accordingly therewith with this yarn at the yarn tension of regional III.A kind of hot air treatment can also appear in the position in steam treatment.Also have this this depend on different yarn types and thread material.

Fig. 9 a and Fig. 9 b have represented a modification at the transport 7 of regional I.

This transport is made up of slip roller 9 and 10 in this case.This slip roller is rotating to be bearing on the disk 17.This disk 17 is fixing in the dividing sinker direction, does not contact with yarn with 10 at this dividing sinker direction roller 9.Utilize a suction rifle 19 to aim at yarn, so this is very simple.Simultaneously, also must mention, a yarn of coming from the spinning-nozzle conveying by this transport does not have a kind of uncertain speed.This yarn can also be from spinning-nozzle slowly be drawn out.Therefore, it is just enough that general suction rifle 19 only has very little pumping power, spins and dividing sinker on the doff head in order that pull out from spinning-nozzle.Then at first disk 17 is rotated with the direction of arrow 18 on the position that Fig. 9 b shows.Thus, roller 9 and 10 contacts with yarn.The rotation of rotating circular disk 17 can so be selected, and promptly can be adjusted in the total winding angle on two rollers 9 and 10.

Figure 11 has represented a kind of modification, and this modification is similar with the spinning apparatus in Fig. 1 and Fig. 2.Also to do explanation about this modification specification in this respect.In this type, roller 9 is supporting and is driving what rotated the end of connecting rod 20.This connecting rod 20 is around a swinging axle swing, a same direction of this swinging axle and roller 10.Connecting rod 20 overcomes its gravity by a cylinder-piston unit 21 and is so supporting (this cylinder-piston unit utilizes a kind of constant pressure-loaded), and promptly this pressure is offseted fully.On the other hand, this connecting rod 20 loads by the power that a fixed supported spring 22 is overcoming cylinder-piston unit 21.Therefore, the yarn tensile force acts on swing arm 20 and is overcoming spring force 22.Swing arm 20 depends on the yarn tensile force and is swinging like this.Also changing the winding angle α on roller 9 and 10 thus simultaneously.When winding angle hour, this yarn tensile force is also little, like this since this swing arm of tendency of spring 22 still swing to the direction that increases winding angle.The opposite yarn tensile force that just produced reduces.This swing arm 20 on the one hand again as a kind of yarn stretching measurement mechanism, is regulated the device of winding angle and at last simultaneously also as transport of the present invention or similar part as a kind of again together with roller 9 in addition.In such device, owing to be that big quality is being moved, therefore this device is keeping certain inertia.Can also regulate the long fluctuation of yarn tension by this device.

According to the modification of Figure 12, represented the regional I of Fig. 2, this transport only is made of a roller 10, and this roller is twined by yarn.With modification in Fig. 3 be accordingly this roller 10 disposed one freely rotate pass through roller 11, can determine by these roller 11 these winding angles.Should be bearing in the end of a swing arm by roller.This swing arm 20 round roller 10 the axle vis-a-vis spring force 22 swinging.This spring 22 is so to dispose.Promptly this spring force stretches that masterpiece is used swing arm and the torque that produces and working by yarn is anti-vis-a-vis.This in this case by the measurement mechanism of roller 11 as yarn tension, simultaneously can also be as the adjusting device of winding angle α, this winding angle enlarges when having bigger yarn tension, and this winding angle diminishes when less yarn tension.

Modification shown in Figure 13 also is the II zone in Fig. 2.Wherein, roller 9 supports in a slide rail, and this slide rail is parallel to the yarn that moves in guider.This slide rail 24 can be done highly by an axle and regulate, and changes winding angle thus.The special advantage of this structure is, by height adjusting change spinning line of roller 9.Owing on thread-carrier 5 and thread-carrier 4, also keeping friction behavior.Transport always preceding or after disposing.

Clearly, this axle can be used to rotate in this structure.Can also be connected with an adjusting motor and this adjusting motor and relevant the handling of tensile force measurement mechanism of before this transport, disposing by this axle.And when the yarn tensile force reduces, move downward and increase winding angle.This in this case tensile force sensing element for example can be positioned at the zone or the position of yarn sensing element 5, and this yarn sensing element is configured on the transport.Can also can cause the very big change of winding angle α at less change yarn tensile stress with the method.

Figure 14 has represented a kind of combination of particularly suitable method.To this, at first comprehensive from the yarn that spinning-nozzle 8 is come, and heat in a heat pipe 26 in regional II then.Such heat pipe is for example at DE-A3808854(crust mug(unit of measure) 1584/1571, i.e. Bag.1584/1571) in express and be illustrated.

This heat pipe is heated to from the outside by resistance and surpasses 90 ℃ temperature.This heat pipe is so narrow, so that this heat pipe can be accepted yarn under corresponding temperature and yarn is stretched in heat pipe because the frictional resistance of this heat pipe softens with it.What realized a kind of yarn in this heat pipe is being stretched of part completely at least.

By transport 7, this transport 7 is contents of the present invention to this yarn by the II zone with heat pipe 26.Pull out and be transported to zone 3 then.Yarn utilization is here handled in a steam treatment chamber.To reduce the contraction tendency of yarn thus, thus this be possible be because carry by the yarn that has very little tension force according to transport of the present invention, and relate to the steam nozzle again and handle, a kind of great contraction has been released.This thus residual shrinkage tendency has been avoided on equal extent, has the yarn of strong contraction tendency like this, and for example nylon yarn just can be processed and doff by this way.Be wound among Figure 14 and do not express.Should point out emphatically, an other transport can be set in steam treatment chamber and between before reeling.

Figure 15 has represented a kind of spinning-stretching-Texturized method configuration with yarn knotting processing (jet) simultaneously.

From spinning-nozzle 8 filament tow that comes out, this filament tow is comprehensive by a thread-carrier.The stretched then lead dish 27 of this yarn and 28 and carry is from here at least can one heating.The peripheral speed of this lead dish 28 is so big simultaneously, and promptly the yarn of paying in 27,28 at two upper conductor dishes is stretched, and this yarn is input in a hot air nozzle or the vapours nozzle then.Yarn is by carrying under the heated air jets effect of supplying gas in the yarn path in this vapours nozzle, and and then carrying to tubular type filling decatize device 30.Yarn has formed a yarn bar tube 33 there.Because this yarn bar tube of air pressure at the inlet of tubular type filling decatize device 30 is carried by this tubular type filling decatize device 30, and pay 31 and pull out by this tubular type filling decatize device 30 by roller.This yarn bar tube leads then and is wrapped at least on the chill roll 32.This chill roll 32 with slow speed drive.This cooling 32 simultaneously be porous and have one air-flow to aspirate by chill roll from outside to inside.Thus, this yarn bar tube 33 has been cooled.Then this yarn becomes separately again, and it is by being drawn out of in the yarn bar tube.This output point will be emphasized also simultaneously that by 34 expressions this output point is because the inevitable irregularities of this yarn bar tube rather than fixing.Therefore, the yarn tension of the monofilament of continuous yarn fluctuates.Used transport 9 of the present invention in order to extract out from release point.Twine with the winding angle that is similar to 180 ° among the embodiment that this transport 9 is expressed.This peripheral speed is higher than yarn speed 3%.Therefore, the very strong reduction of the yarn tension after transport 9.Also have the yarn fluctuation in fact also to reduce therewith accordingly.Then be a kind of winding transport 35, it will cause a kind of as much as possible homogenising of yarn tension fluctuation.Certainly expectation is, is enough according to transport 9 of the present invention under general operating position, reaches a kind of uniform jet result in the jet nozzle that can follow.An air-spray blows to yarn perpendicular to yarn axis in jet nozzle 16.Can reach a kind of uniform kink thus.This kink is even more aspect its shape and its fastness and its spacing, and yarn tension is also just even more so.In Figure 15, also show another winding transport 36 between reciprocating transmission device 3 and jet nozzle, the yarn tension that this winding transport 36 can be avoided being difficult to usually avoid fluctuates, and this fluctuation results between the thread-carrier and mound bobbins of reciprocal drive area.And carry out the transition to jet area.That expects also that such transport can be favourable makes jet homogenising as a result, and this is not enough under the situation of many uses.This yarn of being come by reciprocating transmission device is through the measuring roller of a mound bobbins 2 and carry.

Claims (16)

1, from the method that spinning is distinguished or drawing zone is extracted continuous synthetic yarn (1) out, wherein, yarn (1)

Utilize a kind of yarn to twine thereon transport (7) with a winding angle α, with higher yarn tensile stress on this transport doff and then the reel that drives of a rotation by coiler device extract out from this transport with the yarn tension that reduces, utilize a reciprocating transmission device (3) under the condition that forms a reciprocal transmission triangle, to connect up (reciprocating motion) back and forth and doff on reel perpendicular to this reel

It is characterized in that, the winding angle α and the peripheral speed of this transport are so regulated, be that peripheral speed is greater than the yarn speed on transport (winding speed), and there is such slip in this yarn, and promptly the friction behavior of yarn on transport is a kind of friction behavior (with the irrelevant sliding friction of speed) of dry friction.

2, in accordance with the method for claim 1, it is characterized in that this yarn (1) is wrapped on the transport (7) with total winding angle α, this α is 90 °-270 ℃.

3, in accordance with the method for claim 2, it is characterized in that this slip is 3% of winding speed at least, preferably its 5%.

4, in accordance with the method for claim 1, it is characterized in that this yarn is so handled before the draw-off godet at doff, particularly the wetting action by a kind of liquid, promptly this yarn has coefficient of friction less than 0.4 with respect to the surface of transport in the drive area, is preferably less than 0.25.

5, in accordance with the method for claim 1, it is characterized in that this yarn utilizes a draw-off godet supply on transport, the as many as yarn of the peripheral speed of this transport on this draw-off godet winding speed or to greater than 2%.

6, in accordance with the method for claim 1, it is characterized in that this yarn is drawn out by this transport from spinning-nozzle, and being stretched fully or partly simultaneously.

7, in accordance with the method for claim 1, it is characterized in that this yarn (1) is accepted a kind of jet and handled and/or a kind of additional shrink process by before the transport (7).

8, in accordance with the method for claim 6, it is characterized in that this yarn bore a kind of stretching before the process transport in a heating tube and/or typing is handled.

9, in accordance with the method for claim 1, it is characterized in that, between the transport (7) and the thread guide head of reeling, carry out a kind of yarn L(1) jet handle and/or a kind of shrink process the heat treatment of preferably a kind of yarn (1).

10, in accordance with the method for claim 1, it is characterized in that what the winding on transport (7) was relevant with the yarn tension of measuring regulates before transport.

11, in accordance with the method for claim 6, it is characterized in that this yarn (1) is being carried by the narrow pipe of a heating before through transport (7), and heats with the temperature greater than 90 ℃.

12, in accordance with the method for claim 6, it is characterized in that this transport is positioned under the spinning-nozzle with the distance less than 3M, and drive with the peripheral speed of dividing greater than 6000m/.

13, in accordance with the method for claim 1, it is characterized in that between the thread guide head (4) of transport (7) and coiling, having a shrink process, particularly by the steam that closes a kind of heat or full by the input heat.

14, extract a kind of method of synthetic yarn continuously out from the yarn tube bar (33) of spinning one a curling variation device; The yarn tube bar that stretch a Texturized device from a spinning one especially utilizes a conveying device (7) to extract a kind of continuous synthetic yarn out; This yarn twines with a winding angle (α); This yarn is with higher yarn tension doff on conveying device simultaneously; And the jet processing (kink) of then bearing predetermined distance at an air nozzle; And then carry out doff

It is characterized in that, winding angle of transport (a) and peripheral speed are so regulated, promptly this peripheral speed is higher than the yarn speed (winding speed) on transport, and to have such slip, i.e. the slip behavior of yarn on the transport surface between the surface of transport (7) and yarn be a kind of friction behavior (with the irrelevant sliding friction of speed) of dry friction.

15, in accordance with the method for claim 14, it is characterized in that be provided with one and twine feeding device (35) between transport and jet nozzle (16), this installs in fact nonslipping delivered yarn.

16, in accordance with the method for claim 14, it is characterized in that, between transport and jet nozzle, be provided with a Yarn Brake.

Images