EP1614782A1 - Procédé et dispositif de frisage par compression d'un fil multifilament - Google Patents

Procédé et dispositif de frisage par compression d'un fil multifilament Download PDF

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Publication number
EP1614782A1
EP1614782A1 EP05014732A EP05014732A EP1614782A1 EP 1614782 A1 EP1614782 A1 EP 1614782A1 EP 05014732 A EP05014732 A EP 05014732A EP 05014732 A EP05014732 A EP 05014732A EP 1614782 A1 EP1614782 A1 EP 1614782A1
Authority
EP
European Patent Office
Prior art keywords
channel
conveying fluid
thread
inflow
pressure
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Withdrawn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
EP05014732A
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German (de)
English (en)
Inventor
Mathias STÜNDL
Stefan Kalies
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
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 Saurer GmbH and Co KG filed Critical Saurer GmbH and Co KG
Publication of EP1614782A1 publication Critical patent/EP1614782A1/fr
Withdrawn legal-status Critical Current

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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
    • D02G1/20—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
    • 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
    • D02G1/122—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes introducing the filaments in the stuffer box by means of a fluid jet
    • 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
    • D02G1/16—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam

Definitions

  • the invention relates to a method for stuffer box crimping of a multifilament yarn according to the preamble of claim 1 and to an apparatus for carrying out the method according to the preamble of claim 12.
  • the multifilament yarns are crimped to form a yarn plug in a stuffer box so that the filaments of the yarn settle in sheets and loops on the surface of the yarn plug and compact in the yarn plug become.
  • the multifilament yarn is conveyed pneumatically through a delivery nozzle into the stuffer box.
  • the delivery nozzle has a thread channel for this purpose, in which a plurality of inflow channels open, through which a delivery fluid is introduced under an overpressure in the thread channel.
  • the conveying fluid which is preferably heated, thus causes a retraction and conveying of the multifilament yarn in the thread channel.
  • the delivery nozzle in a central supply channel for the conveying fluid on conducting means to obtain in a ring channel a preferred flow direction of the conveying fluid.
  • a preferred flow direction of the conveying fluid Via the ring channel several inflow channels are supplied, which connect the ring channel with the thread channel. Due to the directed flow thus sets within the thread channel a twisting action, which leads to a twisting of the thread.
  • a swirl is desired to increase the running safety, in particular when entering the thread, on the other hand, to achieve high Eink Hurselungen disturb too high twisting of the threads.
  • the most accurate adjustability of the swirl effect on the delivery nozzle is desirable.
  • the known system is only conditionally suitable for setting and changing the swirl effect precisely and in the larger range on a multifilament yarn.
  • Such Texturierdüsen must be suitable to both multifilament threads consisting of several filament bundles, for example for the production of Tricolorgarnen or multifilament threads consisting of a filament bundle z.
  • B. to lead to the production of Monocolorgarnen safe and promote in an adjacent stuffer box.
  • very different demands are placed on a swirl effect of the delivery nozzle, which, however, are only insufficiently fulfilled with the known solutions.
  • Another object of the invention is to provide a method and apparatus for neck crimping multifilament yarns with high flexibility and applicability.
  • the invention is based on the recognition that the effect of the delivery fluid on the thread within the thread channel is not dependent exclusively on the geometry of the inflow conditions between the inflow channels and the thread channel.
  • An important parameter for influencing the effect of the delivery fluid on the thread within the thread channel is given by the intensity of the flow.
  • the partial flows of the conveying fluid are introduced under the effect of different overpressures from the inflow channels into the thread channel. This allows settings for pulling, guiding and twisting the thread within the thread channel without changing any geometric arrangement. It can thus produce effects in the multifilament yarn, which would never be achieved with geometric changes in inflow.
  • the device according to the invention for carrying out the method according to the invention provides for this purpose that at least one of the inflow channels is formed such that the conveying fluid can be introduced from the inflow channel into the thread channel under the effect of a changed overpressure.
  • a partial flow of the conveying fluid can be introduced within the thread channel, which has a higher or possibly a lower volume flow in relation to the remaining part streams.
  • the fluid flow in the thread channel leads the thread directly can thus take very precise settings.
  • the variant of the method is particularly advantageous, in which a part of the partial flows of the conveying fluid are introduced centrally into the thread channel in the center of the thread channel and at least one further part of the subflows of the conveying fluid. This can already generate a caused by the inflow geometry swirl effect, which can be additionally increased or decreased by a higher or lower pressure at one of the inflow.
  • the off-center supplied partial flow of the conveying fluid can be introduced via a flow cross-section of the inflow channel, which is substantially smaller in comparison to the other inflow channels.
  • the device according to the invention preferably has a pressure actuating means in the inflow passage through which the overpressure of the conveying fluid can be changed within the inflow channel.
  • the inflow channel by a fixed cross-sectional constriction or a narrow channel cross-section, so that there is a pressure increase dependent on the pressure source.
  • an adjustable throttle can be used within the inflow channel or a pressure valve upstream of the inflow channel or a separate pressure source.
  • the pressure adjusting means by a suction device, which is connected via a suction channel with the inflow channel, so that only a weak volume flow is introduced via the inflow channel in the thread channel.
  • the method and apparatus of the invention are suitable for any type of thread to make crimped yarns, especially carpet yarns. This makes it possible to produce fibers from polyester, polypropylene or polyamide.
  • a first embodiment of the inventive device for carrying out the method according to the invention is shown schematically in a longitudinal sectional view.
  • the device consists of a delivery nozzle 1 and a delivery nozzle 1 downstream compression chamber 2.
  • the delivery nozzle 1 includes a thread channel 3, which forms a thread inlet 5 at one end and at the opposite end a yarn outlet 18.
  • the delivery nozzle 1 is connected to a pressure source 23 via a first pressure connection 17.1 and a supply line 21.1.
  • the pressure port 17.1 opens within the delivery nozzle 1 in a first pressure chamber 20.1.
  • the first pressure chamber 20.1 is connected to the thread channel 3 with at least one inflow channel 16.1.
  • a second pressure chamber 20.2 is formed, which is connected at least via a further inlet channel 16.2 with the thread channel.
  • the pressure chamber 20.2 is connected via a pressure valve 22 and a supply line 21.2 with the pressure source 23, which are connected to the pressure port 17.2.
  • a heating device 24 is arranged outside the delivery nozzle in the supply line 21.1.
  • the connection between the supply line 21.1 and the supply line 21.2 in the flow direction behind the heater 24 is formed, so that the pressure chamber 20.2 is also supplied to the heated conveying fluid.
  • the pressure chamber 20.2 would be supplied with a non-heated conveying fluid.
  • the inflow channels 16.1 and 16.2 open into the thread channel 3 in such a way that a conveying fluid entering via the pressure chambers 20.1 and 20.2 through the inflow channels 16.1 and 16.2 flows into the thread channel 3 in the thread running direction.
  • each of the inflow channels 16.1 and 16.2 forms a separate partial flow of the conveying fluid.
  • the delivery nozzle 1 is arranged downstream of the stuffer box 2 on the outlet side.
  • the stuffer box 2 is formed by an upper portion with gas-permeable wall 8 and a lower portion with a closed chamber wall 15.
  • the walls 8 and 15 form a plug channel 19, which is connected at an upper end to the thread outlet 18 of the delivery nozzle 1 and which forms a plug outlet 6 at the lower end.
  • the gas-permeable chamber wall 8 is formed by a plurality of juxtaposed fins 9, which are arranged at a small distance from each other in an annular manner.
  • the lamellae 9 of the gas-permeable chamber wall 8 are held in an upper lamella holder 10.1 and in a lower lamella holder 10.2.
  • the gas-permeable chamber wall 8 and the holders 10.1 and 10.2 are arranged in a closed housing 11.
  • the annular space formed by the housing 11 is connected via an opening 14 with a discharge channel 12.
  • a threadline is shown to illustrate the function of the device.
  • a delivery fluid is provided through the pressure source 23 of the delivery nozzle 1.
  • the heater 24 After heating of the conveying fluid by the heater 24 is a subset of the conveying fluid supplied under a caused by the pressure source 23 overpressure through the pressure port 17.1 of the pressure chamber 20.1.
  • the overpressure in the pressure chamber 20.1 is referred to in this embodiment with p 1 .
  • a second subset of the delivery fluid is passed via the pressure valve 22 and the pressure port 17.2 in the second pressure chamber 20.2.
  • the overpressure in the pressure chamber 20.2 is set by the adjustably designed pressure valve 22 to an overpressure p 2 .
  • the overpressure p 1 in the pressure chamber 20.1 is thus higher than the overpressure p 2 in the pressure chamber 20.2.
  • the delivery fluid from the pressure chamber 20. 1 is passed through the inflow channel 16. 1 into the thread channel 3.
  • the conveying fluid is guided under the action of the overpressure p 1 with correspondingly high energy in the thread channel 3.
  • a low pressure p 2 acts to generate the second partial flow of the conveying fluid, which is introduced via the inflow channel 16.2 in the thread channel 3, a low pressure p 2 .
  • the sub-streams entering the thread channel 3 thus act on the thread 4 with different flow energies, so that, for example, a delivery component of the delivery fluid can be more pronounced than a swirl component of the delivery fluid.
  • the thread 4 is guided by the conveying fluid through the thread channel and conveyed into the adjacent stuffer box 2.
  • a yarn plug 13 is formed, so that the thread formed from a plurality of fine filaments when hitting the yarn plug 13 deposits in sheets and loops on the surface of the yarn plug and compressed by the back pressure of the conveying fluid.
  • the delivery fluid flows laterally from the openings formed between the lamellae 9 and is discharged via the opening 14 and the discharge channel 12, preferably with the assistance of a suction device.
  • the yarn plug 13 is led out on the outlet side of the stuffer box 2 via the stopper outlet 6 and continuously discharged from the stuffer box by means not shown here.
  • the speed of the yarn plug 13 is preferably set such that the yarn plug height within the stuffer box 2 remains substantially the same.
  • the yarn plug is usually dissolved after cooling by pulling off the thread with greater speed again.
  • the crimped thread that forms during this process is then wound up into a bobbin after any subsequent treatment.
  • the possibility is given to influence the effect of the delivery fluid within the thread channel on the multifilament yarn by separate adjustment of the pressures in the pressure chambers 20.1 and 20.2 within wide limits.
  • the conveying effect or the swirl effect can thus be intensified.
  • the possibility of swirl control by changing the partial flows of the conveying fluid is particularly advantageous for the production of monocolor or tricolor threads.
  • over-twisting of the filaments can be avoided by appropriate overpressure adjustment.
  • twisting on the thread is possible.
  • FIG. 2 a further exemplary embodiment of the device according to the invention is shown schematically in a cutaway view in FIG.
  • the embodiment of FIG. 2 is identical to the aforementioned embodiment, so that only the differences will be explained at this point.
  • each of the pressure chambers 20.1 and 20.2 are each connected to a separate pressure source 23.1 and 23.2.
  • Each pressure source 23.1 and 23.2 is assigned a separate heating device 24.1 and 24.2, so that each of the partial flows of the conveying fluid generated within the delivery nozzle are tempered.
  • the prevailing in the pressure chambers 20.1 and 20.2 overpressures of the conveying fluid are adjusted by the associated pressure sources 23.1 and 23.2.
  • the pressure sources 23.1 and 23.2 can be replaced by fluid control means, by each of which an independent of the network pressure prevailing overpressure in the supply lines 21.1 and 21.2 and the pressure chambers 20.1 and 20.2 is adjustable.
  • FIG. 3 a plurality of variants of inflow geometries of a delivery nozzle are shown in a partial view for this purpose.
  • FIGS. 3.1, 3.2 and 3.3 each show different possibilities for designing the inflow geometry in a thread channel of a delivery nozzle, as shown for example in the exemplary embodiments in FIGS. 1 and 2.
  • the inflow channels 16.1 and 16.2 are aligned centrally with the thread channel 3. With such an arrangement of the inflow channels, a strong conveying action is essentially produced on the thread channel 3 guided thread.
  • the by different Overpressures generated partial flows in this case preferably lead to effects with very little swirl effect.
  • the embodiment according to FIG. 3.2 is particularly suitable.
  • at least one of the inflow channels 16.1 or 16.2 is arranged eccentrically to the thread channel.
  • the introduced through the inflow 16.1 partial flow of the conveying fluid passes substantially tangentially into the thread channel 3 and leads to a substantially rotating around the thread flow.
  • a second opposing inlet channel 16.2 enters substantially centrally in the thread channel 3 a.
  • FIG. 3.3 a further possibility of the inflow geometry is shown in FIG. 3.3.
  • a large part of the partial flows is introduced centrally into the thread channel.
  • a third inflow channel 16.3 is arranged eccentrically to the thread channel.
  • the inflow channel 16.3 has a substantially smaller channel cross-section than the inflow channels 16.1 and 16.2 centered with their mouths.
  • the inflow channels 16.1 and 16.2 are preferably operated at the same overpressure level, so that the partial flows of the delivery fluid introduced from the inflow channels 16.1 and 16.2 meet with the same flow energy into the thread channel.
  • the swirl effect on the thread generating partial flow from the inflow 16.3 is thereby provided at a greater or lower pressure level, so that a more or less sharp partial stream jet enters the thread channel 3 for influencing and twisting of the thread.
  • inflow geometries shown in FIG. 3 are only examples. In principle, more than two inflow channels can also lead into the thread channel. In addition, the opposite arrangement of the inflow channels by way of example and in particular by the design of the delivery nozzle dependent. In the embodiment shown in FIG. 3, a two-part delivery nozzle was used. Here, the delivery nozzle is formed from two components held together in a parting line. However, it is also possible in principle to produce the delivery nozzle from a single component.
  • FIGS. 4 and 5 a few further possibilities for forming a device according to the invention for carrying out the method according to the invention are shown.
  • the embodiments are substantially identical to the embodiments of FIG. 1 or 2, so that subsequently only the differences will be explained.
  • the delivery nozzle 1 has a pressure chamber 20, which is connected to a pressure source 23 via a pressure connection 17.
  • the pressure chamber 20 is connected via a plurality of inflow channels 16.1 and 16.2 with the thread channel.
  • One of the inflow channels 16.1 is assigned a throttle 25 designed as a pressure-adjusting means.
  • the throttle 25 has a throttle actuator 26 which more or less engages in the free flow cross-section of the inflow.
  • the throttle actuator 26 is adjustable.
  • a suction channel 27 is connected to the inflow channel 16.1 instead of the throttle 25.
  • the suction channel 27 is with a suction device 28, which discharges, for example, the conveying fluid from the stuffer box connected.
  • a subset of the delivery fluid can be discharged immediately before entering the thread channel, so that the partial flow generated via the inlet channel 16.1 fails lower than the introduced via the inlet channel 16.2 in the thread channel 3 partial flow of the conveying fluid.
  • suction channel 27 could also be connected to a separate pressure source (shown in dashed lines).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
EP05014732A 2004-07-09 2005-07-07 Procédé et dispositif de frisage par compression d'un fil multifilament Withdrawn EP1614782A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004033683 2004-07-09

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EP1614782A1 true EP1614782A1 (fr) 2006-01-11

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EP05014732A Withdrawn EP1614782A1 (fr) 2004-07-09 2005-07-07 Procédé et dispositif de frisage par compression d'un fil multifilament

Country Status (4)

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US (1) US7168141B2 (fr)
EP (1) EP1614782A1 (fr)
JP (1) JP2006022467A (fr)
CN (1) CN1718883A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008024079A1 (de) 2007-06-15 2008-12-18 Oerlikon Textile Gmbh & Co. Kg Texturierdüse
WO2013034511A2 (fr) 2011-09-07 2013-03-14 Oerlikon Textile Gmbh & Co. Kg Dispositif permettant de guider et de texturer plusieurs fils synthetiques
WO2014131641A1 (fr) * 2013-02-28 2014-09-04 Oerlikon Textile Gmbh & Co. Kg Dispositif de transport et guidage pneumatique d'un fil multifilaments
WO2015007582A1 (fr) * 2013-07-17 2015-01-22 Oerlikon Textile Gmbh & Co. Kg Dispositif de traitement thermique d'un faisceau de fibres continu

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7748140B2 (en) 2006-09-21 2010-07-06 Hagay Mizrahi Therapeutic footwear and method of using same
ITMI20081112A1 (it) * 2007-08-02 2009-02-03 Oerlikon Textile Gmbh & Co Kg Dispositivo per arricciare filoni di fibre sintetiche
US9951445B2 (en) * 2012-08-23 2018-04-24 Columbia Insurance Company Systems and methods for improving and controlling yarn texture
US9896786B2 (en) * 2012-08-23 2018-02-20 Columbia Insurance Company Systems and methods for improving and controlling yarn texture
EP3486355A1 (fr) * 2017-11-17 2019-05-22 Polytex Sportbeläge Produktions-GmbH Appareil et procédé de fabrication d'un fil texturé

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4422252A1 (de) * 1993-07-15 1995-01-19 Barmag Barmer Maschf Texturierdüse
DE4435923A1 (de) * 1993-10-19 1995-04-20 Barmag Barmer Maschf Vorrichtung und Verfahren zum gleichmäßigen Texturieren eines laufenden Fadens
WO1999037838A1 (fr) * 1998-01-23 1999-07-29 E.I. Du Pont De Nemours And Company Jet de traitement de fils presentant une plaque de reglage de debit
WO2001064982A2 (fr) * 2000-03-01 2001-09-07 Barmag Ag Procede et dispositif de frisage par compression

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NL166995C (nl) * 1970-10-14 1981-10-15 Rhone Poulenc Textile Werkwijze voor het gelijktijdig continu textureren en verven van een thermoplastische draad.
US3802038A (en) * 1970-12-16 1974-04-09 Neumuenster Masch App Crimping of filamentary materials
GB1592646A (en) * 1976-12-01 1981-07-08 Ici Ltd Yarn treatment
JPS54151653A (en) * 1978-05-16 1979-11-29 Teijin Ltd Crimping method and apparatus of yarn
US5054173A (en) * 1989-05-18 1991-10-08 Barmag Ag Method and apparatus for the enhanced crimping of multifilament yarn
CN1052272C (zh) * 1995-02-02 2000-05-10 里特机械公司 连续卷曲热塑性长丝的方法和装置
BR9700044A (pt) * 1996-01-12 1998-11-10 Rieter Ag Maschf Processo e aparelho para produção de um fio multicolorido a partir de fios componentes coloridos de maneira diversificada de filamento sem fim

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4422252A1 (de) * 1993-07-15 1995-01-19 Barmag Barmer Maschf Texturierdüse
DE4435923A1 (de) * 1993-10-19 1995-04-20 Barmag Barmer Maschf Vorrichtung und Verfahren zum gleichmäßigen Texturieren eines laufenden Fadens
WO1999037838A1 (fr) * 1998-01-23 1999-07-29 E.I. Du Pont De Nemours And Company Jet de traitement de fils presentant une plaque de reglage de debit
WO2001064982A2 (fr) * 2000-03-01 2001-09-07 Barmag Ag Procede et dispositif de frisage par compression

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008024079A1 (de) 2007-06-15 2008-12-18 Oerlikon Textile Gmbh & Co. Kg Texturierdüse
WO2013034511A2 (fr) 2011-09-07 2013-03-14 Oerlikon Textile Gmbh & Co. Kg Dispositif permettant de guider et de texturer plusieurs fils synthetiques
US9067375B2 (en) 2011-09-07 2015-06-30 Oerlikon Textile Gmbh & Co. Kg Device for guiding and texturing a plurality of synthetic threads
WO2014131641A1 (fr) * 2013-02-28 2014-09-04 Oerlikon Textile Gmbh & Co. Kg Dispositif de transport et guidage pneumatique d'un fil multifilaments
US9631300B2 (en) 2013-02-28 2017-04-25 Oerlikon Textile Gmbh & Co. Kg Device for pneumatically conveying and guiding a multifilament thread
WO2015007582A1 (fr) * 2013-07-17 2015-01-22 Oerlikon Textile Gmbh & Co. Kg Dispositif de traitement thermique d'un faisceau de fibres continu

Also Published As

Publication number Publication date
US7168141B2 (en) 2007-01-30
JP2006022467A (ja) 2006-01-26
CN1718883A (zh) 2006-01-11
US20060005365A1 (en) 2006-01-12

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