EP1807561A1 - Procede et dispositif pour filer et texturer un fil synthetique - Google Patents

Procede et dispositif pour filer et texturer un fil synthetique

Info

Publication number
EP1807561A1
EP1807561A1 EP04797636A EP04797636A EP1807561A1 EP 1807561 A1 EP1807561 A1 EP 1807561A1 EP 04797636 A EP04797636 A EP 04797636A EP 04797636 A EP04797636 A EP 04797636A EP 1807561 A1 EP1807561 A1 EP 1807561A1
Authority
EP
European Patent Office
Prior art keywords
thread
air flow
sliding plate
brake air
cooling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP04797636A
Other languages
German (de)
English (en)
Inventor
Bernd Kirchhoff
Bernd Aretz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oerlikon Textile GmbH and Co KG
Original Assignee
Oerlikon Textile GmbH and Co KG
Saurer GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oerlikon Textile GmbH and Co KG, Saurer GmbH and Co KG filed Critical Oerlikon Textile GmbH and Co KG
Publication of EP1807561A1 publication Critical patent/EP1807561A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/12—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/20—Combinations of two or more of the above-mentioned operations or devices; After-treatments for fixing crimp or curl

Definitions

  • the invention relates to a method for spinning and texturing a synthetic thread according to the preamble of claim 1 and to an apparatus for carrying out the method according to the preamble of claim 10.
  • Threaded stopper popped up. Under the influence of heat lie here the
  • the withdrawal means may be formed by a godet or a winding machine. The withdrawal means becomes more constant
  • Receiving the thread a certain thread tension must be present. For example, if the thread tension is not present or too low, the thread runs, for example, uneasily on the godet provided as a take-off means.
  • the Thread brake has a plurality of deflecting pins on which the thread is guided with more or less wrap. In this case, however, due to the frictional heat, a relatively strong rewarming of the thread occurs. After cooling, this effect is a completely undesirable adverse effect on the thread.
  • a method and a device are known from EP 0 488 939 A1, in which, in order to avoid such frictional heating, the yarn plug is guided for dissolution in a free deflection, wherein one of the thread tension is dependent on the components of a gravitational force and internal frictional force on the thread results.
  • a mechanical friction on the yarn can be completely avoided, this has the disadvantage that only very low pull-off forces can be generated.
  • there is a risk that the dissolution point of the yarn plug in its position is constantly changing and thus leads to irregularities in the crimp.
  • This object is achieved by a method for spinning and texturing a synthetic thread with the features of claim 1 and by an apparatus for performing the method with the features of claim 10.
  • the invention has the particular advantage that the thread can be guided substantially without wrapping.
  • the friction forces necessary to build up a defined withdrawal tension are determined by a brake air flow directed at the thread.
  • the brake air flow is generated substantially transversely to the thread running direction to keep the thread on a sliding surface.
  • the holding force generated by the brake air flow to the thread causes frictional forces between the current thread and the stationary sliding surface and cause the structure of the withdrawal voltage to the thread.
  • the device according to the invention has a means for generating the brake air flow and a means for guiding the yarn transversely to the brake air flow.
  • Another advantage of the invention is that the brake air flow can be used simultaneously to further cooling of the thread to obtain a further stabilization of the crimp.
  • the brake air flow is generated by a vacuum source which cooperates with a sliding plate having one or more openings for this purpose, the vacuum source is connected to a longitudinal side of the sliding plate with the openings, wherein the thread is guided on the opposite longitudinal side of the sliding plate , The sucked from the environment brake air flow leads in the area of the openings of the sliding plate for suction of the thread. Due to the adhesion of the thread to the sliding surface of the sliding plate creates a fixed point of attack for the trigger, so that a smooth and uniform yarn path is possible.
  • the brake air flow can be advantageously generated by a pressure source which cooperates with a longitudinal side of a sliding plate with one or more openings.
  • the thread is guided on the longitudinal side of the sliding plate, on which the directed brake air flow impinges.
  • the sliding plate can be arranged between the cooling device and the take-off means such that the thread is already guided without contact of the brake air flow with contact on the sliding plate.
  • the sliding plate can be formed straight or with a slight curvature.
  • To adjust the trigger voltage of the brake air flow is variable in intensity according to an advantageous embodiment of the invention. This can be achieved for example by controlling the vacuum source or pressure source.
  • a particularly advantageous and preferred embodiment of the invention provides for changing the intensity of the brake air flow that the free ⁇ ffiiungsquerroughe the openings in the sliding plate are changeable.
  • one or more strike plates is assigned to the sliding plate, through which the ⁇ ffiiungsquerroughe the openings.
  • a carrier is provided with a plurality of spaced-apart guide grooves, in which guide grooves in each case a sliding plate is held.
  • the carrier has a suction chamber, which is connected to the guide grooves and which has a connection for the vacuum source.
  • a blow chamber is provided on the support, which contains a plurality of the guide grooves associated Blasstutzen and which has a connection for the pressure source.
  • the vacuum source can be used simultaneously to generate a cooling air flow in the cooling device.
  • a cooling drum with a gas-permeable cooling jacket is also connected to the vacuum source.
  • FIG. 1 Schematically a first embodiment of the device according to the invention
  • Fig. 2 shows schematically a further embodiment of the device according to the invention
  • Fig. 3 shows schematically several views of the braking device of the exemplary embodiment of Fig. 2 and
  • Fig. 4 shows schematically another embodiment of a braking device.
  • a first exemplary embodiment of the device according to the invention for carrying out the method according to the invention is shown schematically.
  • the device according to the invention comprises a spinning device 1, a texturing device 9, a cooling device 10, a braking device 13 as well as a
  • the spinning device 1 is connected via a melt inlet 2 with a melt generator (not shown here), for example, an extruder.
  • the melt feed 2 leads to a melt generator (not shown here), for example, an extruder.
  • Spinning beam 3 is formed heated. Next to guide the melt provided spinning pumps and distribution lines - not shown - are held in the spinning beam 3. Below the spinneret 4, a cooling shaft 6 is formed, which is combined with a blowing 7.
  • a polymer melt is fed via the melt feed 2 in the spinning device 1.
  • the polymer melt is extruded through the spinneret 4 held at the bottom of the spinneret 3 into a plurality of individual filaments 5.
  • To cool the filaments 5 are passed through the cooling shaft 6, in which a generated by the blowing 7 cooling air flow is directed to the filaments 5.
  • the preparation device 8 is shown here schematically as a roll preparation. Below the preparation device 8, the texturing device 9 is arranged for texturing the filament bundle.
  • the texturizer 9 is shown in this embodiment as a texturing 12, in which a hot fluid is introduced into a thread channel to collect the filament bundle and réellestrade in a subsequent stuffer box to a yarn plug.
  • the yarn plug 18 is guided in a subsequent cooling device 10.
  • the cooling device 10 is designed as a cooling tube 11, through which the yarn plug 18 is led to cool.
  • the crimped thread 17 is withdrawn through the take-up device acting as a withdrawal means 19 and wound into a coil 20.
  • the braking device 13 is arranged between the cooling device 10 and the winding device 19.
  • the braking device 13 is formed by a sliding plate 15 and a pressure source 14.
  • the pressure source 14 is connected to a blowing nozzle 16.
  • the blast nozzle 16 is arranged with its outlet side at a small distance opposite to a longitudinal side of the slide plate 15.
  • the sliding plate 15 has a sliding surface which contains one or more openings, which will be explained in more detail in the following description.
  • a brake air flow is generated by the drain source 14, which is directed through the blast nozzle 16 transversely to the thread 17.
  • the thread 17 is pressed against the sliding surface of the sliding plate 15.
  • the brake air flow penetrates the sliding plate 15 through the openings, not shown.
  • the pressed by the brake air flow thread 17 slides over the sliding plate 15, so that the friction between the thread 17 and the sliding plate 15 leads to the structure of the trigger voltage.
  • the pressure source 14 is controllable, so that the intensity of the brake air flow varies can be.
  • a higher contact pressure of the thread 17 and thus a higher friction between the thread 17 and the sliding plate 15 is effected with increasing brake air flow.
  • the Aurwickel worn 19 is provided, through which the thread 17 is withdrawn from the yarn plug 18 out and wound into a coil 20.
  • the winding device 19 is shown only schematically by a pressure roller 21 and the coil 20.
  • take-up devices have at least one traversing unit through which the thread is guided back and forth to form the spool.
  • the illustrated in Fig. 1 embodiment of the device according to the invention for carrying out the Erfrndungswashen method contains the essential for the process units and is exemplary in the construction and in the choice of aggregates.
  • a godet used for removing the filaments from the spinning device 1 is advantageously provided.
  • other yarns may be used prior to texturing or prior to winding treatment facilities such as Verwirbelungsdüsen.
  • FIG. 2 shows a further exemplary embodiment of the device according to the invention for the preferred implementation of the method according to the invention.
  • Fig. 2 includes a spinning device 1, which is identical in construction to the previous embodiment. In that regard, reference is made to the explanation of the spinning device 1 to the preceding description.
  • a preparation separation device 8 is arranged, with which the filaments 5 are brought together to form a bundle.
  • Preparation device 8 are two galette units 22.1 and 22.2 downstream.
  • the godet units 22.1 and 22.2 are each formed by a driven godet and a freely rotatabletown_erlaufrolle, which are repeatedly looped around by the thread.
  • the godet unit 22.1 and 22.2 are preferably operated at a differential speed to stretch the filament bundle prior to texturing.
  • the texturing device 9 is arranged downstream of the godet unit 22.2.
  • the texturing device 9 is also formed in this embodiment as a texturing 12 with integrated stuffer box.
  • the cooling device 10 which has a cooling drum 23.
  • the cooling drum 23 has a gas-permeable cooling jacket, on whose surface the yarn plug 18 is led to cool. For this purpose, a negative pressure is generated in the interior of the cooling drum 23, through which forms a cooling air flow penetrating from outside to inside the yarn plug.
  • the withdrawal godet unit 24.1 is formed by a driven godet and a freely rotatable overflow roll, which are wrapped around several times by the thread 17.
  • a braking device 13 is arranged.
  • Braking device 13 is formed by a sliding plate 15 and a negative pressure source 26.
  • a suction chamber 27 formed below the sliding plate T5 " is provided parallel to a longitudinal side of the sliding plate 15. The suction chamber
  • the negative pressure source 26 is connected in this embodiment simultaneously with the cooling drum 23, so that the cooling air flow to cool the yarn plug and the braking current to build up the withdrawal voltage v ⁇ on the vacuum source 26 is generated.
  • the connecting line between the vacuum source 26 and the cooling drum 22 is shown in dashed lines in Fig. 2.
  • the Tangel worn 25 is between the first Abzugsgalettentician 24.1 and another
  • the exemplary embodiment illustrated in FIG. 2 is particularly suitable for producing carpet yarns using the method according to the invention.
  • multiple filaments are preferably spun and textured simultaneously.
  • a plurality of parallel cooling grooves are provided on the cooling drum on the circumference, in each of which a yarn plug is guided.
  • a braking device for guiding a plurality of parallel threads is shown schematically.
  • Fig. 3.1 is a cross-sectional view and in Fig. 3.2 is a plan view of the braking device is shown. Unless an explicit reference is made to one of the figures, the following description applies to both figures.
  • the braking device has a carrier 29, which has parallel to an upper side guide grooves 30.1, 30.2 and 30.3.
  • a sliding plate 15 is held in each case.
  • Each of the sliding plates 15 includes a plurality of openings 28.
  • the openings 28 have rounded rectangular cross-sections, the arrangement of which is aligned substantially transversely to the yarn running direction.
  • the number and shape of the openings 28 are exemplary. In principle, a wide variety of geometric shapes can be provided to form the opening. Furthermore, the orientation to the thread running direction could be perpendicular or oblique.
  • the upper longitudinal side of the sliding plates 15 form a sliding surface, on each of which a thread 17 is guided.
  • the sliding surface on the sliding plate 15 preferably has a wear protection layer.
  • each guide groove 30.1, 30.2 and 30.3 is assigned a respective suction channel 37.1, 37.2 and 37.3.
  • the suction channels 37.1, 37.2 and 37.3 are connected via the openings 28 in the sliding plates 15 with the guide grooves 30.1, 30.2 and 30.3.
  • the suction chamber 27 is coupled via a suction port 32 with a vacuum source, not shown here.,
  • a brake device constructed in this way could, for example, the
  • Exemplary embodiment of the device according to the invention shown in FIG. 2 be used.
  • a negative pressure source is introduced into the suction chamber 27 Negative pressure generated.
  • the ambient air in the guide grooves 30.1, 30.2 and 30.3 is sucked in via the openings 28 in the sliding plates 15 through the suction channels 37.1, 37.2 and 37.3. It forms a brake air flow, which acts on the guided on the sliding surfaces of the sliding plates 15 threads 17.
  • the threads 17 slide over the sliding plates 15, so that the desired pull-off voltage is generated.
  • a blow chamber 31 is associated with downwardly directed Blasstutzen 16.1, 16.2 and 16.3 the carrier 29.
  • the blowpipes 16.1 are associated with downwardly directed Blasstutzen 16.1, 16.2 and 16.3 the carrier 29.
  • 16.2 and 16.3 are each with an outlet to the guide grooves 30.1, 30.2 and
  • the blow chamber 31 is connected via a blower port 33 with a pressure source, not shown here.
  • the blast chamber 31 with the Blasstutzen 16.1, 16.2 and 16.3 are shown in phantom in Fig. 3.1.
  • the braking current generated in each case by the guide grooves 30.1, 30.2 and 30.3 is generated by combining the pressure source and the vacuum source. Due to the action of the pressure source, a component of the brake air flow is blown into the guide grooves 30.1, 30.2 and 30.3 and thus onto the threads 12 via the blow chamber 31 and the blow nozzles 16.1, 16.2 and 16.3. By the action of the vacuum source, a further component of the brake air flow is generated by suction simultaneously.
  • This embodiment of a braking device is therefore particularly suitable for simultaneous cooling of the thread.
  • the vacuum source and the pressure source are designed to be controllable in order to influence the intensity of the brake flow current and thus the magnitude of the trigger voltage.
  • FIG. 4 shows a further exemplary embodiment of a braking device, as would be expedient for example in the device according to the invention according to FIG. 2.
  • Fig. 4.1 shows the braking device in a cross-sectional view
  • Fig. 4.2 in a plan view schematically. The following description applies as long as no explicit reference is made to one of the figures, for both figures.
  • the braking device is formed by a carrier 29, on whose upper side a guide groove 30 is introduced.
  • a sliding plate 15 is arranged with a plurality of openings 28.
  • a longitudinally relative to the sliding plate 15 movable latch plate 34 is disposed on the carrier 29.
  • the strike plate 34 also includes openings 28.
  • At one end of the strike plate 34 is coupled to an adjustment axis 36 and an adjusting wheel 35 attached to the end of the adjustment 36.
  • the connection of the adjustment axis 36 with the strike plate 34 can be done for example via a toothing.
  • the Sch.blecli 34 can be moved by rotation of the adjusting wheel 35 in the longitudinal direction relative to the sliding plate 15 back and forth.
  • a suction chamber 27 is formed, which is connected via a suction port 32 with a vacuum source, not shown here.
  • the suction effect on the sliding surface of Gleitbleciies 15 can be varied by changing the position of the ScS splitbleches 34. This is " another way to influence the size of the friction between the thread and the sliding plate 15 and thus by the size of the trigger voltage.
  • the embodiments of the device according to the invention for carrying out the method according to the invention shown in FIGS. 1 and 2 are exemplary in their construction and in their arrangement of the individual units. Basically, the treatment of the threads and the leadership of the threads can be supplemented by other facilities not shown here, such as additional godets, heaters or turbulators or guide elements.
  • the braking device is formed to build up the take-off tension between the cooling device and the take-off means by a brake air flow and a sliding surface cooperating with the brake air flow.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Abstract

L'invention concerne un procédé et un dispositif pour filer et texturer un fil synthétique. Selon l'invention, plusieurs filaments sont extrudés à partir d'un polymère fondu et regroupés en un faisceau de filaments, lequel, sous l'action de la chaleur, est comprimé en un tampon de fil, refroidi et tiré en un fil frisé, une tension de tirage étant appliquée sur le fil après désagrégation du tampon de fil. L'invention vise à développer sur le fil une tension de tirage ménageant le fil le plus possible. A cet effet, le fil traverse un flux d'air de freinage qui agit sensiblement transversalement au sens de déplacement du fil et qui maintient le fil sur sa surface de glissement. Pour cela, on utilise un dispositif de freinage, dans lequel un élément génère un flux d'air de freinage orienté sensiblement transversalement au sens de déplacement du fil, un autre élément guidant le fil transversalement au flux d'air de freinage.
EP04797636A 2004-11-05 2004-11-05 Procede et dispositif pour filer et texturer un fil synthetique Withdrawn EP1807561A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2004/012517 WO2006048035A1 (fr) 2004-11-05 2004-11-05 Procédé et un dispositif pour filer et texturer un fil synthétique

Publications (1)

Publication Number Publication Date
EP1807561A1 true EP1807561A1 (fr) 2007-07-18

Family

ID=34959171

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04797636A Withdrawn EP1807561A1 (fr) 2004-11-05 2004-11-05 Procede et dispositif pour filer et texturer un fil synthetique

Country Status (2)

Country Link
EP (1) EP1807561A1 (fr)
WO (1) WO2006048035A1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1299944A (en) * 1969-08-08 1972-12-13 Fiber Industries Inc Method and apparatus for producing a bulked yarn
DE59104693D1 (de) * 1990-11-29 1995-03-30 Rieter Ag Maschf Verfahren und Vorrichtung zur Pfropfenauflösung nach der Texturierung.
CN1732297B (zh) * 2003-01-15 2012-04-25 苏拉有限及两合公司 用于合成长丝的纺造和卷曲变形的方法和装置
DE10344414A1 (de) * 2003-09-25 2005-05-04 Saurer Gmbh & Co Kg Verfahren und Vorrichtung zum Spinnen und Texturieren eines synthetischen Fadens

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006048035A1 *

Also Published As

Publication number Publication date
WO2006048035A1 (fr) 2006-05-11

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