WO2002052078A1 - Ensemble galette et dispositif pour etirer un fil - Google Patents

Ensemble galette et dispositif pour etirer un fil Download PDF

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Publication number
WO2002052078A1
WO2002052078A1 PCT/EP2001/014417 EP0114417W WO02052078A1 WO 2002052078 A1 WO2002052078 A1 WO 2002052078A1 EP 0114417 W EP0114417 W EP 0114417W WO 02052078 A1 WO02052078 A1 WO 02052078A1
Authority
WO
WIPO (PCT)
Prior art keywords
godet
roller
thread
shells
unit according
Prior art date
Application number
PCT/EP2001/014417
Other languages
German (de)
English (en)
Inventor
Jörg Spahlinger
Heiner Kudrus
Rainald Vob
Original Assignee
Barmag 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 filed Critical Barmag Ag
Priority to DE10195670T priority Critical patent/DE10195670D2/de
Publication of WO2002052078A1 publication Critical patent/WO2002052078A1/fr

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
    • D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
    • D02J13/005—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass by contact with at least one rotating roll
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H51/00—Forwarding filamentary material
    • B65H51/02—Rotary devices, e.g. with helical forwarding surfaces
    • B65H51/04—Rollers, pulleys, capstans, or intermeshing rotary elements
    • B65H51/08—Rollers, pulleys, capstans, or intermeshing rotary elements arranged to operate in groups or in co-operation with other elements
    • B65H51/12—Rollers, pulleys, capstans, or intermeshing rotary elements arranged to operate in groups or in co-operation with other elements in spaced relation to provide a series of independent forwarding surfaces around which material is passed or wound
    • 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
    • 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
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D02J1/225—Mechanical characteristics of stretching apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the invention relates to a godet unit for guiding and conveying a thread according to the preamble of claim 1 and a device for stretching a thread.
  • a generic godet unit and a device for stretching a thread is known for example from DE 199 09 073 AI.
  • the known godet unit consists of a driven godet and a rotatable roller assigned to the godet at a distance. At least one thread is guided on the circumference of the godet and on the circumference of the roll with several loops.
  • Such godets are preferably used in spinning plants or textile machines in order to guide and demand a synthetic thread for stretching. In order to generate the highest possible stretching forces, one or more threads running in parallel next to each other with several wraps are guided on the godet and the roll.
  • the roller preferably does not have its own drive, so that the roller is driven by the thread friction. Due to the high thread speeds of up to 10,000 m / min, which occur particularly in high-speed processes, the high speeds of the godet unit and the thread tension acting on the godet unit cause considerable bearing loads, which special bearings, for example made of ceramic, require.
  • Another problem with the known godet unit is that the thread guide on the godet and the roller causes an uneven distribution of the load on the godet and on the roller, which represents an additional bearing load for both the roller bearing and the godet bearing.
  • Another disadvantage of the known device for stretching a thread or several threads lies in the arrangement of the godet units with respect to one another, which, particularly when stretching in several stages, requires an overall height which is often not achievable in the systems, since the godet units must be arranged in a plurality of stretching fields lying one behind the other , The arrangement of the godet units that is required to draw a thread or several threads guided in parallel is referred to as a stretching field.
  • Another object of the invention is to provide a device for stretching a thread, which enables multi-stage stretching of one or more threads in a compact stretching field.
  • the object according to the invention is achieved by a godet unit with the features according to claim 1 and by a device for stretching a thread according to claim 11.
  • the godet of the godet unit is assigned a plurality of rotatable rollers.
  • the rollers are arranged one behind the other in the longitudinal direction of the godet.
  • the wraps provided for guiding and conveying the thread on the circumference of the godet and on the circumference of the roll are preferably distributed evenly over several rolls.
  • the godet has a plurality of roller shells arranged axially one behind the other, which are rotatably supported independently of one another.
  • One of several rotatable rollers for guiding the thread is assigned to each of the roller shells.
  • the bearing loads on the rollers as well as on the godet are considerably reduced by dividing the thread guide over several stored roller shells and several rollers.
  • the godet unit according to the invention is therefore particularly suitable for building up high drawing tensions for drawing threads.
  • the rollers are mounted independently of one another on a common axis. This ensures that the thread is guided evenly over the entire length of the godet.
  • the godet unit according to the invention it is also possible, according to an advantageous development of the godet unit according to the invention, to support the rollers on several axes.
  • adjacent axes are offset from one another by an angle in the circumferential direction of the godet.
  • a distribution of the bearing load on the circumference of the godet can thus be achieved even in the case of a godet with a roller jacket. Due to the angular offset between the adjacent rollers, the force resulting from the thread wrap is introduced at various points on the circumference of the godet.
  • each roller can preferably be assigned a treatment zone on the godet.
  • the thread guide can be designed differently from treatment zone to treatment zone.
  • the treatment zones can therefore by different axis distances between the godet and the overflow roller or by diameter steps in the roll shell of the godet or by external influences on the thread.
  • each roller shell of the godet is assigned one of several rotatable rollers for guiding the thread. A further flexibility of the thread guidance is thus achieved.
  • each of which is assigned to the roll shell.
  • the drives are preferably controlled individually.
  • Each roller jacket with an assigned roller thus forms a unit for guiding and conveying the thread.
  • the drives of the roller shells are preferably designed as electric motors.
  • the electric motor has a rotor connected to the roll shell, which cooperates with a stator attached to an axle support.
  • roller shells of the godet are particularly advantageously rotatably mounted on a common projecting axle support.
  • Conventional rolling bearings or magnetic bearings can be used for storage.
  • the godet is heated by at least one heating device according to an advantageous development of the godet unit.
  • the roller shells are preferably heated in such a way that one of the roller shells can be heated and regulated independently of the adjacent roller shells with regard to the surface temperature.
  • a device for stretching a thread in which a godet unit has a godet which has a plurality of roller shells which are arranged axially one behind the other and can be driven independently of one another, and a plurality of rotatable rollers which guide the roller shells to guide the thread assigned.
  • the particular advantage of the device according to the invention is that the differential speed required to build up a yield stress can already be generated with a single godet unit.
  • the individually driven roller sleeves of the godet and the assigned rollers make it possible to draw when there is a thread transition between two adjacent roller sleeves.
  • the device according to the invention for stretching a thread is therefore particularly characterized by its low overall height and compact design.
  • the rollers can be arranged on a common axis or on several axes that are offset from one another.
  • the adjacent roll shells are driven at a differential speed.
  • a stretching step is sometime formed between each adjacent pair of rollers.
  • the stretching tension acting between the drawing stages results directly from the differential speed of the roll shells.
  • the number of roll shells of the godet unit which are arranged horizontally next to one another is thus increased without changing the structural height which is decisive for the integration into a spinning system.
  • the threads can advantageously be drawn in several stages within a drawing field.
  • the heating of one of the roller shells is particularly advantageous here, so that a heat treatment can be carried out to intensify the stretching.
  • the roller shells are preferably driven by electric motors.
  • Each of the roller shells is assigned a rotor of the electric motor, which cooperates with a stator attached to an axle support.
  • the electric motors can be controlled individually and, if necessary, combined with a speed control.
  • the design of the device, in which the roller shells are mounted on a common projecting axle carrier, is particularly advantageous for threading at the start of the process.
  • the arrangement of the rollers is preferably such that the rollers are mounted on a plurality of axes and the axes are offset from one another in the circumferential direction of the roller shells. This results in a distribution of the load on the axle support, so that even long, projecting axle supports for receiving more than three roller shells lying one behind the other do not receive any one-sided bending load.
  • FIG. 1 schematically shows a side view of an exemplary embodiment of a godet unit according to the invention
  • FIG. 2 schematically shows a front view of the exemplary embodiment from FIG. 1
  • FIG. 3 schematically shows a side view of a further exemplary embodiment of a godet unit according to the invention.
  • FIG. 4 schematically shows a front view of the exemplary embodiment from FIG. 3
  • FIG. 6 schematically shows a cross-sectional view of an embodiment of the device according to the invention for stretching a thread
  • FIG. 7 schematically shows a front view of the exemplary embodiment according to FIG. 6.
  • FIG. 1 and FIG. 2 show a first exemplary embodiment of the godet unit according to the invention.
  • 1 is a side view and FIG. 2 is a front view.
  • the following description applies to both figures insofar as no express reference is made to one of the figures.
  • the godet unit consists of a godet 1 and the rollers 2.1 and 2.2.
  • the rollers 2.1 and 2.2 are arranged one behind the other in the longitudinal direction of the godet 1 and are rotatably mounted together on an axis 3.
  • the axis 3 is cantilevered on a machine frame 11.
  • an axle support 4 of the godet 1 is also attached to the machine frame 11.
  • the godet 1 has a roller jacket 6 which is mounted on the axle carrier 4 and is driven in rotation by means of a drive (not shown here).
  • a thread 5 is drawn off from the spinning zone through the godet 1, for example.
  • the thread 5 is then in several wraps first on the circumference of the
  • FIGS. 3 and 4 show a further exemplary embodiment of the godet unit according to the invention, in which the godet 1 is identical to the previous exemplary embodiment. In this respect, reference is made to the preceding description.
  • Fig. 3 the side view is shown schematically and in Fig. 4 the front view of the godet unit.
  • the roles 2.1 and 2.2 are assigned to the godet 1.
  • the roller 2.2 is rotatably mounted on a cantilever axis 3.1, for this purpose the axis 3.1 is cantilevered in the machine frame 11.
  • the roller 2.2 is arranged in the longitudinal direction of the godet 1 next to the roller 2.1.
  • the roller 2.2 is rotatably mounted on the projecting axis 3.2, the projecting length of the axis 3.2 being extended by the projecting length of the roller 2.1.
  • the axis 3.2 is attached to the machine frame 11.
  • the axes 3.1 and 3.2 have the same distance from the godet 1.
  • the axes are offset in the circumferential direction of the godet 1, so that the axis planes of the axis 3.1 with the axle support 4 and the axis plane with the axis 3.2 and the axle support 4 form an angle.
  • the angle represents a measure that determines the offset of the forces acting on the roller shell 6 of the godet 1.
  • the godet unit in turn consists of a godet 1 and several rollers 2.1 and 2.2.
  • the rollers 2.1 and 2.2 are rotatably supported one behind the other on a projecting axis 3.
  • the axis 3 is attached to the machine frame 11.
  • an axle support 4 is attached, on which two roller shells 6.1 and 6.2 of the godet 1 are rotatably mounted one behind the other.
  • the roller jackets 6.1 and 6.2 each have a drive (not shown here).
  • the drives of the roller jackets 6.1 and 6.2 can be driven together by a group drive. This results in a thread run as already shown and described in FIG. 2.
  • FIG. 6 and FIG. 7 schematically show an embodiment of the device according to the invention for stretching a thread.
  • the godet is shown in cross section in FIG. 6 and a front view of the device according to the invention is shown in FIG. 7.
  • the device according to the invention consists of a godet unit which has a godet 1 and a plurality of rollers 2.1, 2.2 and 2.3.
  • the godet 1 has several roller shells 6.1, 6.2 and 6.3.
  • the roller jackets 6.1, 6.2 and 6.3 are each rotatably supported by bearings 13 on a cantilevered axle support 4.
  • the axle carrier 4 is fastened to the machine frame 11.
  • a drive 7.1, 7.2 and 7.3 is arranged in each case within the roller shells 6.1, 6.2, 6.3.
  • the drive is designed as an electric motor 7.
  • Each of the electric motors 7.1, 7.2 and 7.3 each contains a stator 9 and a rotor 8.
  • the stator 9 is fastened to the axle support 4 and connected to a supply line 12.
  • the stator 9 is enclosed by an annular rotor 8, which is attached to the inner circumference of the roller shell 6.
  • An air gap is formed between the rotor 8 and the stator 9.
  • Each electric motor 7.1, 7.2 and 7.3 can be controlled independently by the supply line 12.1, 12.2 and 12.3.
  • the roller 2.1 is assigned to the roll shell 6.1 at the clamping end of the axle support 4.
  • the roller 2.1 is rotatably mounted on the axis 3.1.
  • the adjacent roller 2.2 is assigned to the adjacent roller jacket 6.2, which is also rotatably mounted on an axis 3.2.
  • the outer roller jacket 6.3 of the godet 1 is assigned to the overflow roller 2.3, which on the Axis 3.3 is attached.
  • the rollers 2.1, 2.2 and 2.3 are arranged one behind the other in the longitudinal direction of the godet.
  • the axes 3.1, 3.2 and 3.3 are arranged at the same distance from the axle support 4 at an angle to the circumference of the godet. This arrangement thus corresponds in principle to the exemplary embodiment according to FIGS. 3 and 4, so that reference is made to the previous description of FIGS. 3 and 4 at this point.
  • the godet 1 On the side of the roller shells 6.2 and 6.3 opposite the rollers 2.1, 2.2 and 2.3, the godet 1 has two heating devices 10.1 and 10.2.
  • the heating devices 10.1 and 10.2 are each designed as radiant heaters, which lie opposite the rotating roller shell and lead to heating of the surface of the roller shell.
  • the heating devices 10.1 and 10.2 can be controlled and regulated independently of one another.
  • roller jacket 6.2 and 6.3 operated at different speeds.
  • the roller jacket 6.2 is driven at a higher speed than the roller jacket 6.1.
  • the roller jacket 6.3 is also driven at an even higher speed than the roller jacket 6.2. This results in a stretching step for stretching a thread between the roller jacket 6.1 and 6.2.
  • the drawing tension generated by the differential speed of the roller shells 6.1 and 6.2 is used to stretch a thread guided on the circumference of the roller shells 6.1 and 6.2 and the rollers 2.1 and 2.2.
  • the roll shells of the godet have an outer diameter of the same size.
  • the rollers assigned to the roller shells are arranged at the same distance from the circumference of the godet. These statements are exemplary. It is also possible to design the roll shells with different diameters. Thus, the speed difference, which is generated on the one hand by the drives, can be increased. Furthermore, the heating of the roller shells can also be carried out by induction or resistance heating elements. There is also the option of designing the rotatable roller and the driven roller jacket with the same outer diameter.
  • the godet unit according to the invention and the device for stretching a thread according to the invention are, however, also suitable for guiding a plurality of threads guided parallel to one another in a plurality of wraps around the circumference of the roller shells and the rollers, as is customary in spinning systems, for example.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Abstract

L'invention concerne un ensemble galette pour guider et transporter un fil, ainsi qu'un dispositif pour étirer un fil. Cet ensemble galette et ce dispositif d'étirage présentent une galette et un rouleau rotatif, associé à la galette en étant placé à distance de cette dernière. Le fil est guidé à la périphérie de la galette et à la périphérie du rouleau en étant enroulé plusieurs fois. Selon l'invention, la galette présente plusieurs bandages de cylindres, montés de manière à pouvoir tourner indépendamment les uns des autres et placés les uns derrière les autres dans le sens axial, et/ou plusieurs rouleaux rotatifs, placés les uns derrière les autres dans le sens longitudinal de la galette, sont associés à la galette.
PCT/EP2001/014417 2000-12-23 2001-12-07 Ensemble galette et dispositif pour etirer un fil WO2002052078A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE10195670T DE10195670D2 (de) 2000-12-23 2001-12-07 Galetteneinheit und Vorrichtung zum Verstrecken eines Fadens

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10065154.2 2000-12-23
DE10065154 2000-12-23

Publications (1)

Publication Number Publication Date
WO2002052078A1 true WO2002052078A1 (fr) 2002-07-04

Family

ID=7669089

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2001/014417 WO2002052078A1 (fr) 2000-12-23 2001-12-07 Ensemble galette et dispositif pour etirer un fil

Country Status (2)

Country Link
DE (1) DE10195670D2 (fr)
WO (1) WO2002052078A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2870837A1 (fr) * 2004-05-26 2005-12-02 Rieter Textile Machinery Fr Dispositif pour l'entrainement par friction d'un element filiforme
WO2006042646A1 (fr) 2004-10-14 2006-04-27 Saurer Gmbh & Co. Kg Galette pour guider, chauffer et transporter un fil
WO2011095467A3 (fr) * 2010-02-03 2011-12-01 Oerlikon Textile Gmbh & Co. Kg Dispositif pour faire la levée ou pour guider des fils synthétiques
WO2021123941A1 (fr) * 2019-12-17 2021-06-24 Stc Spinnzwirn Gmbh Guide-fils de filage

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2144544A1 (de) * 1971-09-06 1973-03-22 Zinser Textilmaschinen Gmbh Einrichtung zum setten von texturierten garnen
DE3839473A1 (de) * 1988-11-23 1990-05-31 Krantz H Gmbh & Co Walze zum fuehren einer warenbahn
EP0607891A1 (fr) * 1993-01-21 1994-07-27 Hans-Peter Stang Installation pour rétrécir étirer, sécher, apprêter, teindre, alimenter ou autres une matière textile en déplacement telle que bandes ou fils
US5621637A (en) * 1993-09-21 1997-04-15 Barmag Ag Method of controlling the quality in the production of a plurality of yarns
DE19909073A1 (de) * 1998-03-05 1999-09-09 Barmag Barmer Maschf Vorrichtung und Verfahren zum Verstrecken eines synthetischen Fadens

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2144544A1 (de) * 1971-09-06 1973-03-22 Zinser Textilmaschinen Gmbh Einrichtung zum setten von texturierten garnen
DE3839473A1 (de) * 1988-11-23 1990-05-31 Krantz H Gmbh & Co Walze zum fuehren einer warenbahn
EP0607891A1 (fr) * 1993-01-21 1994-07-27 Hans-Peter Stang Installation pour rétrécir étirer, sécher, apprêter, teindre, alimenter ou autres une matière textile en déplacement telle que bandes ou fils
US5621637A (en) * 1993-09-21 1997-04-15 Barmag Ag Method of controlling the quality in the production of a plurality of yarns
DE19909073A1 (de) * 1998-03-05 1999-09-09 Barmag Barmer Maschf Vorrichtung und Verfahren zum Verstrecken eines synthetischen Fadens

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2870837A1 (fr) * 2004-05-26 2005-12-02 Rieter Textile Machinery Fr Dispositif pour l'entrainement par friction d'un element filiforme
WO2006042646A1 (fr) 2004-10-14 2006-04-27 Saurer Gmbh & Co. Kg Galette pour guider, chauffer et transporter un fil
WO2011095467A3 (fr) * 2010-02-03 2011-12-01 Oerlikon Textile Gmbh & Co. Kg Dispositif pour faire la levée ou pour guider des fils synthétiques
CN102741141A (zh) * 2010-02-03 2012-10-17 欧瑞康纺织有限及两合公司 用于抽拉或引导合成丝的装置
WO2021123941A1 (fr) * 2019-12-17 2021-06-24 Stc Spinnzwirn Gmbh Guide-fils de filage

Also Published As

Publication number Publication date
DE10195670D2 (de) 2003-11-20

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