EP0406673A2 - Machine de frisage par fausse-torsion pour fil synthétique - Google Patents

Machine de frisage par fausse-torsion pour fil synthétique Download PDF

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Publication number
EP0406673A2
EP0406673A2 EP90112180A EP90112180A EP0406673A2 EP 0406673 A2 EP0406673 A2 EP 0406673A2 EP 90112180 A EP90112180 A EP 90112180A EP 90112180 A EP90112180 A EP 90112180A EP 0406673 A2 EP0406673 A2 EP 0406673A2
Authority
EP
European Patent Office
Prior art keywords
heater
thread
length
crimping machine
false twist
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
EP90112180A
Other languages
German (de)
English (en)
Other versions
EP0406673A3 (en
EP0406673B1 (fr
Inventor
Peter Dammann
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 Barmag AG
Original Assignee
Barmag AG
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
Priority claimed from DE19893921758 external-priority patent/DE3921758A1/de
Application filed by Barmag AG, Barmag Barmer Maschinenfabrik AG filed Critical Barmag AG
Publication of EP0406673A2 publication Critical patent/EP0406673A2/fr
Publication of EP0406673A3 publication Critical patent/EP0406673A3/de
Application granted granted Critical
Publication of EP0406673B1 publication Critical patent/EP0406673B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • D02G1/02—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
    • 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
    • D02J13/003—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 stationary surface, e.g. a plate

Definitions

  • the invention relates to a false twist crimping machine according to the preamble of claim 1.
  • This false twist crimping machine is known for example from DE-PS 25 30 125 (Bag. 949) and DE-PS 25 01 183.
  • target temperature a desired temperature - hereinafter referred to as "target temperature”.
  • the object of the invention is to achieve the target temperature of the thread at the desired increasing thread speeds with heater lengths which are not longer, but preferably smaller than the previously usual heater lengths.
  • Claim 5 characterizes the teaching of this invention in the event that the heater is equipped with a variable curvature over the length.
  • the invention eliminates the prejudice and runs counter to the general trend that increasing thread speed and larger thread titer require a longer heater length if the target temperature required for false twist texturing is to be reliably reached.
  • the invention is based based on the new finding that there is a narrow range (hereinafter referred to as the "dependency range") in which there is a dependence of the heater length required to achieve a specific target temperature on the radius of curvature of the heater.
  • the synthetic thread 12 is drawn off from the supply spool 1 via a head thread guide 2 by means of the first delivery mechanism 3.
  • the thread is then passed over a curved heater 4.
  • the thread is deflected by thread guide 5 between the heater 4 and the following cooling rail 6.
  • the thread is twisted incorrectly by friction false twist 7.
  • This is followed by a second feed mechanism 8, through which the thread is drawn out of the false twist zone.
  • the thread can then be heated again in a second heater 9, which is not the subject of this application.
  • the thread is drawn off from the second heater 9 by the third delivery mechanism 12 and then wound up into a bobbin in the winding device 11.
  • the heater essentially consists of a curved heating rail with a groove, in the bottom of which the thread runs.
  • the heating rail has previously been provided with a curve so that the thread runs in good contact with the heating rail.
  • Various means are available for heating the heating rail, for example resistance heaters or superheated steam systems in accordance with, for example, DE-OS 23 48 371 (Bag. 877).
  • the thread run and heater are arranged in relation to one another so that the thread essentially runs on the inlet tangent and runs on the outlet tangent.
  • the special feature of this invention is that for the heater 4 radius R and length L are optimally matched to one another so that the length L of the heater is minimized to achieve the desired temperature.
  • the length L is the secant between the input and the output measured by the heater.
  • the heater is circularly curved so that it has only one radius.
  • the wrap angle is the same as the angle between the inlet tangent and the outlet tangent.
  • the heating rail there is a minimum length of the heating rail. This minimum length depends on the thread titer. The limits are specified in claim 1. The minimum length on the one hand ensures a sufficient minimum dwell time of the thread on the heating rail. On the other hand, a large heater length with a small radius also means a large wrap angle and thus a large increase in tensile force in the thread. By limiting the length of the heating bar the wrap angle and thus the increase in tensile force is therefore technically limited to areas that are specified by the technology of false twist texturing.
  • the required heater length depends essentially on the thread speed and the thread titer.
  • a heater length that is sufficient to essentially heat the thread to its desired temperature is referred to as necessary.
  • the target temperature of the thread corresponds to the limit, i.e. with ideal heat transfer, the actual temperature of the heating rail.
  • the heater length also depends on the heater radius. That means: the smaller the radius, the smaller the length.
  • a heater that has a greater curvature in the infeed area ensures intensive heat transfer to the thread and thus rapid heating in the infeed area and, on the other hand, a longer running distance to even out the thread temperature.
  • the reverse measure could be useful to adapt the increasing heater curvature to the increasing twist build-up in the running thread.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
EP90112180A 1989-07-01 1990-06-27 Machine de frisage par fausse-torsion pour fil synthétique Expired - Lifetime EP0406673B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3921758 1989-07-01
DE19893921758 DE3921758A1 (de) 1989-07-01 1989-07-01 Falschzwirnkraeuselmaschine fuer einen synthetischen faden
DE3937975 1989-11-15
DE3937975 1989-11-15

Publications (3)

Publication Number Publication Date
EP0406673A2 true EP0406673A2 (fr) 1991-01-09
EP0406673A3 EP0406673A3 (en) 1991-06-05
EP0406673B1 EP0406673B1 (fr) 1995-08-30

Family

ID=25882592

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90112180A Expired - Lifetime EP0406673B1 (fr) 1989-07-01 1990-06-27 Machine de frisage par fausse-torsion pour fil synthétique

Country Status (3)

Country Link
US (1) US5339617A (fr)
EP (1) EP0406673B1 (fr)
DE (1) DE59009571D1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0691429A2 (fr) 1994-06-22 1996-01-10 B a r m a g AG Rail chauffant pour un fil synthétique en mouvement
WO2014198656A1 (fr) * 2013-06-15 2014-12-18 Oerlikon Textile Gmbh & Co. Kg Machine à texturer
WO2016096405A1 (fr) 2014-12-18 2016-06-23 Oerlikon Textile Gmbh & Co. Kg Système pour texturer un fil synthétique
US10232466B2 (en) 2013-12-12 2019-03-19 Zf Friedrichshafen Ag Transmission shaft and method and device for the production thereof

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1039142C (zh) * 1993-06-15 1998-07-15 巴马格股份公司 人造丝加热器
TW317579B (fr) * 1995-04-11 1997-10-11 Barmag Barmer Maschf
US7465555B2 (en) * 2002-04-02 2008-12-16 Becton, Dickinson And Company Early detection of sepsis
GB0316947D0 (en) * 2003-07-19 2003-08-27 Rieter Scragg Ltd Improved heating arrangements

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3800374A (en) * 1967-12-13 1974-04-02 G Ozawa Method for producing bulky yarn
GB1379284A (en) * 1972-06-27 1975-01-02 Platt International Ltd Yarn heater
US3969800A (en) * 1972-08-28 1976-07-20 Beloit Corporation Stretching device for filaments or strands
GB1471581A (en) * 1974-01-17 1977-04-27 Scragg & Sons Yarn crimping apparatus
USRE30159E (en) * 1975-07-05 1979-11-27 Barmag Barmer Maschinenfabrik Aktiengesellschaft False twist-crimping machine
US4242862A (en) * 1975-12-11 1981-01-06 Toray Industries, Inc. Multifilament yarn having novel configuration and a method for producing the same
FR2358486A1 (fr) * 1976-07-12 1978-02-10 Asa Sa Procede et dispositif pour le traitement d'articles textiles
DE2933087C2 (de) * 1979-08-16 1986-10-02 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Falschzwirn-Kräuselmaschine
DE8024032U1 (de) * 1980-09-09 1982-02-25 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Falschzwirnkraeuselmaschine
EP0332227B1 (fr) * 1983-11-01 1992-02-26 TEIJIN SEIKI CO. Ltd. Dispositif de chauffage sans contact, pour le chauffage d'un fil synthétique
US4567721A (en) * 1983-11-01 1986-02-04 Teijin Limited Method for producing textured yarn
DE3801506C2 (de) * 1987-02-05 1996-09-19 Barmag Barmer Maschf Falschzwirnkräuselmaschine
JPH07122188B2 (ja) * 1987-06-16 1995-12-25 帝人製機株式会社 仮撚加工方法
JPH07122187B2 (ja) * 1987-06-16 1995-12-25 帝人製機株式会社 仮撚加工装置
JPH01192845A (ja) * 1988-01-21 1989-08-02 Murata Mach Ltd 合成繊維糸延伸用ヒーター

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0691429A2 (fr) 1994-06-22 1996-01-10 B a r m a g AG Rail chauffant pour un fil synthétique en mouvement
EP0691429A3 (fr) * 1994-06-22 1996-02-28 Barmag Barmer Maschf Rail chauffant pour un fil synthétique en mouvement
US5628175A (en) * 1994-06-22 1997-05-13 Barmag Ag Heating apparatus for heating an advancing synthetic filament yarn
CN1113992C (zh) * 1994-06-22 2003-07-09 巴马格股份有限公司 合成纤维的加热导轨和加热装置及多股纤维的变形方法
WO2014198656A1 (fr) * 2013-06-15 2014-12-18 Oerlikon Textile Gmbh & Co. Kg Machine à texturer
US10232466B2 (en) 2013-12-12 2019-03-19 Zf Friedrichshafen Ag Transmission shaft and method and device for the production thereof
WO2016096405A1 (fr) 2014-12-18 2016-06-23 Oerlikon Textile Gmbh & Co. Kg Système pour texturer un fil synthétique

Also Published As

Publication number Publication date
EP0406673A3 (en) 1991-06-05
US5339617A (en) 1994-08-23
DE59009571D1 (de) 1995-10-05
EP0406673B1 (fr) 1995-08-30

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