EP1328671A2 - Machine de fausse torsion - Google Patents

Machine de fausse torsion

Info

Publication number
EP1328671A2
EP1328671A2 EP01988792A EP01988792A EP1328671A2 EP 1328671 A2 EP1328671 A2 EP 1328671A2 EP 01988792 A EP01988792 A EP 01988792A EP 01988792 A EP01988792 A EP 01988792A EP 1328671 A2 EP1328671 A2 EP 1328671A2
Authority
EP
European Patent Office
Prior art keywords
thread
twist
false twist
texturing machine
counter
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.)
Granted
Application number
EP01988792A
Other languages
German (de)
English (en)
Other versions
EP1328671B1 (fr
Inventor
Thomas Wortmann
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
Barmag AG
Saurer GmbH and Co KG
Barmag Barmer Maschinenfabrik AG
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 Barmag AG, Saurer GmbH and Co KG, Barmag Barmer Maschinenfabrik AG filed Critical Barmag AG
Publication of EP1328671A2 publication Critical patent/EP1328671A2/fr
Application granted granted Critical
Publication of EP1328671B1 publication Critical patent/EP1328671B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/08—Interlacing constituent filaments without breakage thereof, e.g. by use of turbulent air streams
    • 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
    • D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
    • D02G1/0206—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting
    • D02G1/0266—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting false-twisting machines
    • 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
    • D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
    • D02G1/04—Devices for imparting false twist

Definitions

  • the invention relates to a false twist texturing machine for texturing a large number of thermoplastic threads according to the preamble of claims 1 and 2.
  • Such a false twist texturing machine is known, for example, from US Pat. No. 5,644,908.
  • the known false twist texturing machine has a multiplicity of processing stations, in each of which a crimped yarn is produced from a plain yarn that has been put in.
  • the thread is drawn off from a supply spool by means of a first delivery mechanism and guided into a false twist zone.
  • a heating device, a cooling device and a false twist unit are arranged in the false twist zone.
  • the thread is stretched and fixed within the false twist zone.
  • the false twist unit generates a twist that runs counter to the direction of the thread, so that within the cooling device and the heating device in which the thread is thermally treated, the thread has a false twist that dissolves at the outlet of the false twist unit.
  • the thread is requested by means of a second feed mechanism by a second heater for thermal aftertreatment and to a winding device in which the thread is wound into a bobbin. Since after the false twist is dissolved, depending on the process, more or less residual twist remains in the textured thread, a counter-twist device in the form of a swirling nozzle is arranged upstream of the winding device in the known texturing machine. The counter twist device leads to a twist treatment, whereby the remaining twist in the thread is destroyed.
  • a twist treatment by the counter twist device depends on the polymer type of the yarn and the set process parameters, for example the thread speed. Furthermore, it is known from WO99 / 09239 that, in order to increase the effectiveness of the twist treatment, the counter twist device is arranged directly in the exit area of the second heating device, so that a pronounced fixation of the thread in the heating device is possible and the residual twist is thus destroyed.
  • heating devices of this type as is known, for example, from EP 0 595 086 B1 - often interact with a guide tube for thermal compensation or for threading the thread. In order to thread the thread, the guide tube is connected to an injector, so that the thread is drawn in at the entrance of the heating device and guided to a predetermined position within the machine via the guide tube.
  • the invention is characterized in that the thread guide in the counter twist device can be adapted to the respective need.
  • the invention offers a first solution in which the position of the thread path can be changed and a further solution in which the position of the thread path remains unchanged.
  • a swirl means of the counter twist device interacts with a guide means.
  • the guide means that guides the thread can be moved back and forth between a rest position and an operating position. In the rest position, the thread is guided in such a way that no twist treatment takes place. This position is therefore special also suitable for threading. The thread is only treated by the twisting device when the guide means is in the operating position.
  • the counter twist device has a movable swirl means which can also be moved back and forth between a rest position and an operating position. In the rest position there is no twist treatment on the thread. A twist treatment of the thread is only possible if the twist is moved into the operating position.
  • rollers or guide edges can be used as the twist means, which are twisted by the thread for twist treatment.
  • the design of the swirling agent is particularly preferably applicable as a swirling nozzle.
  • the swirling nozzle has a thread channel for guiding the thread, in which a tangential air flow generates the twist on the thread.
  • the thread channel forms a continuous insertion slot through which the thread can be inserted into the thread channel from the outside. In this way, the thread can be guided both in the operating position within the thread channel and in the rest position outside the thread channel both through the guide means and through the swirling nozzle itself.
  • the swirling nozzle has a piston which is movable transversely to the thread path and which is adjustable within a housing between the rest position and the operating position.
  • the thread channel with the insertion slot and a nozzle bore opening into the thread channel are introduced into the piston transversely to the longitudinal axis of the piston.
  • the housing has a thread inlet and a thread outlet opposite the thread inlet and a compressed air connection. In the operating position of the piston, the thread inlet and the thread outlet are connected to one another by the thread channel.
  • Nozzle bore coupled to the compressed air connection, so that a twist treatment is carried out on the thread within the thread channel.
  • the insertion slot connected to the thread channel with a V-shaped cross section at an end face of the piston.
  • a guide tube is arranged at the thread inlet of the housing and at the ⁇ adenauslass of the housing.
  • an injector can be connected to one of the guide tubes, so that the thread can be pneumatically pinched in a simple manner while the piston is in the rest position.
  • the guide tube arranged at the thread inlet of the intermingling nozzle is advantageously coupled directly to the outlet of a set heater.
  • the movement of the guide means or the movement of the swirl means is preferably controlled by an actuator.
  • the actuator can be activated either directly by an operator or via a control device.
  • a so-called Z-twist or an S-twist can be generated by the false twist unit.
  • FIG. 2 shows a longitudinal section parallel to the direction of movement of the thread of the counter twist device in the operating position of the false twist texturing machine shown in FIG. 1,
  • Fig. 3 section transverse to the direction of movement of the thread of the counter twist device in the operating position shown in Fig. 1
  • FIG. 4 shows a longitudinal section parallel to the direction of movement of the thread of the counter twist device in the rest position of the false twist texturing machine shown in FIG. 1,
  • FIG. 5 shows a section transverse to the direction of movement of the thread of the counter twist device in the rest position of the false twist texturing machine shown in FIG. 1
  • Fig. 6 shows another embodiment of a swirling nozzle in longitudinal section parallel to the thread path and
  • FIG. 7 embodiment of a swirl nozzle according to Fig. 6 in a section transverse to the thread path.
  • the false twist texturing machine consists of a gate frame 2, a process frame 3 and a winding frame 1.
  • An operating aisle 5 is formed between the process frame 3 and the winding frame 1.
  • the gate frame 2 is arranged at a distance from the winding frame 1 on the side of the winding frame 1 opposite the operating aisle 5.
  • a dope aisle 6 is formed between the winding frame 1 and the gate frame 2.
  • three winding devices 9 are arranged one above the other, each belonging to a processing point of the machine. In each processing point, the thread 4 is drawn off from a supply spool 7 arranged in the creel frame 2 via a thread guide 12 by a first delivery mechanism 13.
  • the thread 4 is then conveyed from the first delivery mechanism 13 into the false twist zone, which comprises a heating device 8, a cooling device 10 and a false twist unit 14.
  • the thread 4 is then withdrawn from the false twist zone by the second delivery unit 15 and fed to a second heating device 16.
  • the speed of the thread is set by the third delivery mechanism 18 arranged downstream of the second heating device 16.
  • a counter-twist device 17 is arranged between the second heating device 16, which is referred to below as a set heater, and the third delivery mechanism 18.
  • a first guide tube 25 and a second guide tube 26 are arranged on the inlet side and the outlet side of the counter twist device 17.
  • the first guide tube 25 in front of the counter-swirl device 17 is coupled to the output of the set heater 16.
  • On an injector 27 is connected to the second guide tube 26, which runs below a platform 23 of the operating aisle 5.
  • the second guide tube 26 ends immediately before the third delivery mechanism 18.
  • the third delivery mechanism 18 leads the thread 4 to the take-up device 9.
  • the take-up device 9 comprises a friction roller 19 for driving a take-up reel 20, a traversing device 24 connected upstream of the friction roller 19, a bobbin store 21 serving to take up full bobbins and a sleeve magazine 22 in the take-up device 9, the thread 4 is wound to the take-up spool 20.
  • the thread 4 with the delivery mechanism 13 is drawn off from the supply spool 7 and is fed into the false twist zone.
  • the false twist is introduced into the thread 4 by the false twist unit 14.
  • the false twist generated in this way runs counter to the thread running direction back to the first delivery mechanism 13 or to the first deflection roller 11.1, which could be designed as a twist-stop roller.
  • the thread is thus guided in the wrongly twisted state through the first heating device 8 into the cooling device 10.
  • the thread 4 is stretched and fixed in the heating device 8, which leads to an impression of the twist and * ⁇ s ⁇ mit to a good crimping result in the thread 4. After the thread 4 has left the false twist zone.
  • the thread 4 has a more or less high residual twist.
  • Such a residual twist which leads to the twisting of the thread 4, is undesirable for the subsequent further processing. Therefore, the thread 4 receives in the counter twist device 17 a counter-twist which is opposite in its direction of rotation to that of the false twist.
  • This counter-twist now plants itself back to the second delivery unit 15. Since the counter-twist counteracts the residual twist, the fixation and relaxation treatment in the set heater 16 leads to a twist-free thread 4.
  • the counter-twist device is in an operating position, as described in more detail below is.
  • the counter-swirl device 17 is shown schematically in FIGS. 2 and 3 show the counter-twist device 17 in an operating position and FIGS. 4 and 5 show the counter-twist device in a rest position. The following description applies to FIGS. 2 to 5 insofar as no express reference is made to one of the figures.
  • FIGS. 2 and 3 show the counter twist device in the operating position.
  • the counter twist device is shown in a longitudinal section parallel to the thread path (FIG. 2) and in a cross section transverse to the thread path (FIG. 3).
  • the counter twist device has a swirling nozzle 28 as a swirling means.
  • the swirling nozzle 28 has a piston 29, which is guided in a cylindrical housing 30 transversely to the thread path.
  • the housing 30 has a thread inlet 31 in a thread running plane on one side and a thread outlet 32 on the opposite side.
  • the thread inlet 31 and the thread outlet 32 each contain an inlet thread guide 44J and an outlet thread guide 44.2.
  • the first guide tube 25 is attached to the outside of the housing concentrically with the thread inlet 31.
  • the second guide tube 26 is connected to the housing 30 at the level of the thread outlet 32.
  • the piston 29 is guided in the housing 30 between the thread inlet 31 and the thread outlet 32.
  • the piston 29 has a continuous thread channel 33 transverse to the longitudinal axis of the piston, through which the thread inlet 31 is connected to the thread outlet 32.
  • the thread channel 33 contains a continuous insertion slot 34 which has a V-shaped opening cross section in the direction of movement of the piston 29
  • the insertion slot 34 is made in the lower end face of the piston 29.
  • the piston 29 is coupled to an actuator 36.
  • a nozzle bore 35 is made in the piston 29, which ends at one end in the thread channel 33 and with the opposite end is connected to a pressure line 38 which is connected to the housing 30 via the compressed air connection 37.
  • the swirling nozzle 28 is shown in the operating position in FIGS. 2 and 3.
  • the piston 29 is held in its position by the actuator 36 and a spring 39 which acts on the lower end face of the piston 29 and is supported in the closed housing 30.
  • the thread 4 runs through the thread inlet 31 into the thread channel 33. Compressed air flowing essentially tangentially through the nozzle bore 35 into the thread channel 33 is introduced within the thread channel 33 and acts on the thread 4 in order to generate a counter-twist. This counter-twist is now planted back to the feed mechanism 15.
  • the thread 4 leaves the intermingling nozzle 28 via the thread outlet 32 and is guided through the second guide tube 26 to the third feed mechanism 18.
  • the actuator 36 is activated to adjust the piston 29.
  • the piston 29 is then moved within the housing 30 transversely to the thread path into a rest position.
  • This situation is shown in Figures 4 and 5.
  • the swirling nozzle 28 is shown in FIG. 4 in a longitudinal section parallel to the thread running plane and in FIG. 5 in a cross section transverse to the thread running.
  • the piston 29 is displaced such that the thread inlet 31 and the thread outlet 32 are connected to one another over a large opening cross section of the insertion slot 34.
  • the thread channel 33 is located outside the thread path.
  • the compressed air connection 37 is closed by a control surface of the piston 29. No further compressed air thus enters the interior of the housing 30.
  • the piston 29 is held in the rest position by the actuator 36 and the spring 39.
  • the situation of the intermingling nozzle 28 shown in FIGS. 4 and 5 is also particularly suitable in order to be able to carry out an automatic threading of the thread 4.
  • the set heater 16 is on Output connected to the first 25 and second 26 guide tubes.
  • the first guide tube 25 and the second guide tube 26 each enclose the thread inlet 31 and the thread outlet 32.
  • the injector 27 is connected to the second guide tube 26 and is pressurized with compressed air for threading the thread 4 , In this case, a vacuum for sucking in the thread is generated in the pipe section in front of the injector 27 and in the set heater 16.
  • the thread can thus be guided through the set heater 16 into the first guide tube 25 to the thread inlet 31 of the swirling nozzle 28. Due to the large opening cross section within the intermingling nozzle 28, the thread is drawn directly into the second guide tube 26 via the thread outlet 32. The thread can then be taken over at the exit of the second guide tube 26 shortly before the third delivery mechanism 18.
  • treatment by the counter-turning device can be used to guide the piston 29 into the operating position within the housing 30 by the actuator 36.
  • the thread 4 guided between the thread inlet 31 and the thread outlet 32 automatically slides into the thread channel 33 via the insertion slot 34.
  • the nozzle bore 35 is coupled to the side compressed air connection 37. The compressed air access is released so that a corresponding treatment of the thread 4 can be carried out.
  • FIGS. 6 and 7 show a further exemplary embodiment of a counter twist device which is used in particular in false twist texturing machines in which manual operation takes place.
  • the counter-twist device is a twist means
  • Swirling nozzle 28 is provided.
  • the intermingling nozzle is parallel to the yarn path in a longitudinal section in FIG. 6 and in a cross section in FIG. 7 shown across the thread. The following description applies to both figures.
  • the swirling nozzle 28 has a continuous thread channel 33.
  • the thread channel 33 is continuously connected to an insertion slot 34 on one side.
  • the insertion slot 34 has a V-shaped opening cross section.
  • a nozzle bore 35 is provided transversely to the thread channel 33 and is connected to a pressure line 38.
  • a guide means 40 is assigned to the swirling nozzle 28.
  • the guide means 40 has a carrier 43 and in each case a first thread guide 41 in the thread run in front of the thread channel 33 and a second thread guide 42 in the thread run behind the thread channel 33. These two thread guides 41, 42 are attached to the carrier 43.
  • the guide means 40 is connected to an actuator 36.
  • the actuator 36 allows the guide means 40 to be adjusted in its position between an operating position — as shown — and a rest position — not shown here. In the operating position, the thread 4 is guided by the thread guides 41 and 42 through the thread channel 33. In this situation, the thread 4 is twisted.
  • the actuator 36 is activated so that the guide means 40 is moved such that the thread guides 41 and 42 are guided into the area of the insertion slot 34.
  • the thread 4 is automatically guided out of the thread channel 33.
  • the twist means could also be formed by a roller which is arranged obliquely to the thread path.
  • the contact means 40 would establish the contact between the thread 4 and the roll in the operating situation. In the event that no treatment should be carried out, the contact between the thread 4 and the roll is canceled by the guide means. LIST OF REFERENCE NUMBERS

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

L'invention concerne une machine de fausse torsion permettant de texturer des fils synthétiques (4) dans un poste de traitement. Un dispositif chauffant et un ensemble de fausse torsion sont implantés dans une zone de fausse torsion. Un deuxième dispositif chauffant et un dispositif de contre-torsion sont implantés dans une zone de post-traitement. Le dispositif de contre-torsion permet de supprimer une torsion résiduelle laissée dans le fil par l'ensemble de fausse torsion. Pour permettre éventuellement l'exécution d'un traitement par le dispositif de contre-torsion, une première variante présente un moyen de torsion et un moyen de guidage qui coopère avec le moyen de torsion. Le moyen de guidage guide le fil (4) et est animé d'un mouvement de va-et-vient entre une position de repos aux fins de non traitement ou d'application du fil (4) et une position opérationnelle de traitement du fil (4). Selon une deuxième variante, le dispositif de contre-torsion présente un moyen de torsion (28, 29) mobile qui est animé d'un mouvement de va-et-vient entre une position de repos de non traitement ou d'application du fil (4) et une position opérationnelle de traitement de torsion du fil.
EP01988792A 2000-10-28 2001-10-18 Machine de fausse torsion Expired - Lifetime EP1328671B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10053650 2000-10-28
DE10053650 2000-10-28
PCT/EP2001/012063 WO2002034978A2 (fr) 2000-10-28 2001-10-18 Machine de fausse torsion

Publications (2)

Publication Number Publication Date
EP1328671A2 true EP1328671A2 (fr) 2003-07-23
EP1328671B1 EP1328671B1 (fr) 2005-07-06

Family

ID=7661485

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01988792A Expired - Lifetime EP1328671B1 (fr) 2000-10-28 2001-10-18 Machine de fausse torsion

Country Status (7)

Country Link
US (1) US6843050B2 (fr)
EP (1) EP1328671B1 (fr)
JP (1) JP2004512435A (fr)
CN (1) CN1520474A (fr)
AU (1) AU2002221698A1 (fr)
DE (1) DE50106701D1 (fr)
WO (1) WO2002034978A2 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100152711A1 (en) * 2008-12-15 2010-06-17 Boston Scientific Scimed, Inc. Offset coupling region
CN103147192A (zh) * 2013-02-22 2013-06-12 珠海醋酸纤维有限公司 卷曲机冷却水供应系统
CN108754798A (zh) * 2018-08-16 2018-11-06 青岛金誉佳纺织机械有限公司 一种具有纬纱退捻功能的织布机用装置总成
CN112376139B (zh) * 2020-11-12 2022-11-15 山东铭泰新型材料有限公司 一种捻线方法及配套设备
DE102021002945A1 (de) 2021-06-09 2022-12-15 Oerlikon Textile Gmbh & Co. Kg Vorrichtung zum Kühlen eines laufenden Fadens

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Publication number Priority date Publication date Assignee Title
US3837155A (en) * 1970-06-01 1974-09-24 Celanese Corp Pneumatic false twist interlaced yarn
USRE30159E (en) * 1975-07-05 1979-11-27 Barmag Barmer Maschinenfabrik Aktiengesellschaft False twist-crimping machine
DE2634492C3 (de) * 1976-07-31 1979-01-18 Akzo Gmbh, 5600 Wuppertal Verfahren zum schnellen Einfädeln eines Fadens in eine Falschzwirnspindel
US4170103A (en) * 1978-03-29 1979-10-09 Wwg Industries, Inc. Node fixation in self-twist yarn
IT1195894B (it) * 1979-09-24 1988-10-27 Savio Spa Introduttore automatico per fusi a doppia torsione e fusi a doppia torsione adottanti detto introduttore
US5079908A (en) * 1988-08-27 1992-01-14 Hans Stahlecker Arrangement for carrying out a yarn piecing operation at a spinning point of a spinning machine
CN1045320C (zh) 1992-10-08 1999-09-29 巴马格股份公司 假捻卷曲机
DE9307835U1 (de) * 1993-05-25 1993-07-22 FAG Kugelfischer Georg Schäfer KGaA, 8720 Schweinfurt Garnverwirbelungsvorrichtung
TW340533U (en) 1993-09-04 1998-09-11 Barmag Barmer Maschf False twist crimping machine
GB2306176B (en) * 1995-10-13 1999-08-04 Heberlein & Co Ag Texturing process and apparatus
US6301870B1 (en) 1997-08-20 2001-10-16 Barmag Ag False twist texturing machine and method for producing a textured thread
DE19834429A1 (de) * 1997-08-20 1999-02-25 Barmag Barmer Maschf Verfahren und Vorrichtung zum Herstellen eines texturierten Fadens
JP2002527635A (ja) * 1998-10-12 2002-08-27 バルマーク アクチエンゲゼルシヤフト テクスチャード加工機械

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Title
See references of WO0234978A2 *

Also Published As

Publication number Publication date
WO2002034978A2 (fr) 2002-05-02
US6843050B2 (en) 2005-01-18
CN1520474A (zh) 2004-08-11
AU2002221698A1 (en) 2002-05-06
EP1328671B1 (fr) 2005-07-06
US20030182923A1 (en) 2003-10-02
WO2002034978A3 (fr) 2002-08-15
JP2004512435A (ja) 2004-04-22
DE50106701D1 (de) 2005-08-11

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