EP0903431A2 - Anordnung für eine Textilmaschine - Google Patents

Anordnung für eine Textilmaschine Download PDF

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Publication number
EP0903431A2
EP0903431A2 EP98307212A EP98307212A EP0903431A2 EP 0903431 A2 EP0903431 A2 EP 0903431A2 EP 98307212 A EP98307212 A EP 98307212A EP 98307212 A EP98307212 A EP 98307212A EP 0903431 A2 EP0903431 A2 EP 0903431A2
Authority
EP
European Patent Office
Prior art keywords
yarn
textile machine
machine arrangement
cooling
arrangement according
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Withdrawn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
EP98307212A
Other languages
English (en)
French (fr)
Other versions
EP0903431A3 (de
Inventor
Geoffrey Naylor
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.)
Rieter Scragg Ltd
Original Assignee
Rieter Scragg Ltd
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 Rieter Scragg Ltd filed Critical Rieter Scragg Ltd
Publication of EP0903431A2 publication Critical patent/EP0903431A2/de
Publication of EP0903431A3 publication Critical patent/EP0903431A3/de
Withdrawn legal-status Critical Current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
    • D02G1/02—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
    • 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
    • D02J13/001—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass in a tube or vessel

Definitions

  • This invention relates to textile machines, and in particular to machines for texturing textile yarns by false twisting, heating and cooling the false twisted yarns, and winding up such yarns.
  • Textile machines of this type are well known.
  • the heating and cooling of the yarns is performed by passing the yarns in contact with the surface of a heated plate and then an unheated, or even cooled, plate.
  • It is an obvious aim of textured yarn producers to maximise the production of textured yarn from any texturing machine, by increasing the machine speed and hence the throughput speed of the yarn.
  • One of the limitations to increasing the speed of the machine is the 'surge speed', a yarn throughput speed at which dynamic threadline instability occurs. This speed is affected by yarn tension, the rate of twist insertion and machine configuration.
  • the high rotational speed of the twisting yarn tends to create uncontrolled vibrations in the running yarn and this causes rapid variations in tension and in the twist level inserted in the yarn by the twisting unit, thereby producing unacceptable yarn.
  • the yarn path through the heating and cooling zones is straight so as to allow free passage of the twist back from the twisting unit to the start of the heating zone, although other yarns may be acceptably processed despite a severe change of direction between the heating zone and the cooling zone.
  • Machine configurations are a compromise between providing for satisfactory processing for stability and yarn quality and acceptable ergonomics.
  • the invention provides a textile machine arrangement for texturing textile yarns by false twisting, heating and cooling the false twisted yarns, comprising spaced first and second frames with an operator's aisle between, a creel disposed in the first frame, yarn feeding devices, a heating device and a cooling device disposed above the operator's aisle, and a false twisting device mounted on the second frame, wherein the heating device has a substantially vertical heated surface and wherein the feeding devices are operable to feed a yarn along a yarn path upwardly from the creel to an inlet end of the heating device, downwardly in contact with the heated surface, through the cooling device and to the false twisting device, and the yarn path between the heating device and the false twisting device is inclined to the vertical out of the plane of the heating surface.
  • the cooling device may extend downwardly from the heating device to the false twisting device.
  • the yarn path between the heating device and the false twisting device may be curved, in which case the cooling device may be a plate which is longitudinally curved through an angle of between 20° and 45°.
  • the cooling device may be a substantially straight tube which is inclined at between 30° and 80° to the vertical.
  • the tube may have yarn guides disposed adjacent the inlet and outlet ends thereof and positioned to guide a running yarn in a substantially helical path along the outer surface of the tube.
  • a running yarn may make a plurality of turns around the surface of the cooling tube between the inlet and outlet guides, and the tube may have additional yarn guides located along a helical path between the inlet and outlet guides.
  • a cooling fluid may be passed through the cooling tube.
  • the heating device may have a temperature of between 150 °C and 800 °C.
  • the heated surface may have a groove therein for receiving a running yarn.
  • the heating device may have a longitudinally curved heated surface with which the yarn runs in contact, or a substantially flat heated surface.
  • a textile machine 10 comprising a first frame or creel 11 and a second frame 12.
  • first frame or creel 11 Mounted in the first frame or creel 11 are several packages 13 of supply yarn.
  • a first feed device 14 mounted on the first frame 11 is a first feed device 14 in the form of a feed and nip roller pair.
  • a second feed device 15 mounted on the second frame 12 is a second feed device 15, also in the form of a feed and nip roller pair, and a false-twist device 16.
  • the frames 11, 12 are spaced from each other to provide an operator's aisle 17 between them.
  • the heating device 18 which may have a length of between 0.5 and 2.5 m, has a longitudinally curved or substantially flat heated surface 20 facing the creel 11, and in which there is a groove 21. In the case of a longitudinally curved surface, the radius of curvature may be of the order of 18 m.
  • the first heating device 18 may operate at a temperature at or above the melting point of the yarn 23, i.e. above 150 °C and up to 800 °C.
  • the cooling device 19 is in the form of a plate which is curved through an angle of approximately 35°, thereby limiting the angular deflection of the yarn 23 as it leaves the heater 18 whilst aligning the incoming yarn 23 to pass over the surface of the first working disc 24 of the false twist device 16 at the desired angle.
  • the cooling plate 19 also has a longitudinal groove therein to receive the running yarn 23, the bottom of which groove has a radius comparable with that of the yarn 23, e.g. 0.5 mm.
  • the yarn 23 is threaded through the machine 10 to extend in a straight line between the first yarn feed device 14 and the false twist device 16.
  • the yarn 23 is then passed over the yarn guides 28 on a sledge 29 which is pushed either pneumatically or by means of a rod 30 so as to slide upwardly along a sledge track 31 extending between the first yarn feed device 14 and the inlet end 32 of the first heating device 18.
  • This places the yarn 23 in contact with the groove 21 in the heated surface 20 of the first heating device 18 and with the cooling plate 19.
  • the yarn 23 passes through the second feed device 15 to an optional second heating device 33 and to a package winding mechanism 34 located in a take-up section 35.
  • the second heating device 33, if fitted, and the take-up section 35 are disposed in the second frame 12, the take-up section 35 facing the first frame 11 across the operator's aisle 17.
  • the packages 36 of textured yarn are removed from the machine 10 by the operator or by an automatic doffing mechanism (not shown) operating in the operator's aisle 17.
  • a machine 10 which is identical with that shown in Fig. 1 except for an alternative cooling device 39 instead of the plate 19.
  • the cooling device 39 is in the form of a tube having guides 37 disposed adjacent the inlet and outlet ends thereof to guide the running yarn 23 in a helical path, making two or three turns as it travels the length of the cooling device 39.
  • a cooling fluid may be passed through the tube 39 This may be effected by withdrawing air from the tube 39 through an aperture adjacent the inlet end as part of a fume extraction system. cooler air entering the tube 39 at the outlet end.
  • the cooling fluid may be supplied from a cooling fluid supply device 22 to circulate through the cooling tube 39 to enhance the cooling effect and thereby reduce the length of the cooling device 19 required for adequate cooling of the yarn 23.
  • the cooling device 39 is inclined downwardly towards the false-twist device 16 at an angle of between 30° and 80° to the vertical, thereby aligning the incoming yarn 23 to pass over the surface of the first working friction disc 24 of the false twist device 16 at the desired angle.
  • the yarn 23 is threaded around the cooling tube 39 so as to extend in a straight line between the first yarn feed device 14 and the yarn guide 37 at the inlet end of the cooling tube 39.
  • the yarn 23 is then introduced to the surface 20 of the heater 18 by raising the sledge 29 as described above.
  • the yarn 23 With the vertically disposed heater 18, the yarn 23 carries heat downwardly against the natural upward flow of heat in the heated surface, leading to a more even temperature profile along the heated surface 20 and consequential better heating of the yarn 23.
  • the surge speed is increased significantly, particularly in the case of a substantially flat heater 18, whilst maintaining satisfactory migration of the twist back to the start of the heating zone.
  • an increase in the surge speed of up to 200 metres/min can be obtained using the present arrangement compared with the known heater/cooling device configurations with heaters of similar dimensions and heating capabilities.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
EP98307212A 1997-09-19 1998-09-07 Anordnung für eine Textilmaschine Withdrawn EP0903431A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9719859.2A GB9719859D0 (en) 1997-09-19 1997-09-19 Textile Machine Arrangement
GB9719859 1997-09-19

Publications (2)

Publication Number Publication Date
EP0903431A2 true EP0903431A2 (de) 1999-03-24
EP0903431A3 EP0903431A3 (de) 1999-09-15

Family

ID=10819270

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98307212A Withdrawn EP0903431A3 (de) 1997-09-19 1998-09-07 Anordnung für eine Textilmaschine

Country Status (3)

Country Link
EP (1) EP0903431A3 (de)
JP (1) JPH11131332A (de)
GB (1) GB9719859D0 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000073558A1 (de) * 1999-05-27 2000-12-07 Barmag Ag Texturiermaschine
WO2005007951A1 (en) * 2003-07-19 2005-01-27 Rieter Textile Machinery France Heating arrangements
EP1526196A3 (de) * 2003-10-20 2006-07-19 Maschinenfabrik Rieter Ag Heizeinrichtung für einen Faden
WO2007028439A3 (de) * 2005-07-13 2007-06-07 Saurer Gmbh & Co Kg Vorrichtung zum falschdralltexturieren

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5133909B2 (ja) * 2009-01-06 2013-01-30 Ｔｍｔマシナリー株式会社 糸条冷却装置及び繊維機械、糸条冷却方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2604016C3 (de) * 1975-03-07 1980-01-03 Heberlein Maschinenfabrik Ag, Wattwil (Schweiz) Einfädelvorrichtung für eine oberbaulose Falschdrall-Texturiermaschine
GB2147323B (en) * 1983-09-28 1986-08-20 Rieter Scragg Ltd Textile machine
JPH0345730A (ja) * 1989-07-13 1991-02-27 Toray Eng Co Ltd 仮撚加工機の傾斜ヒータ装置
GB9023549D0 (en) * 1990-10-27 1990-12-12 Rieter Scragg Ltd Yarn heating arrangement
GB9510681D0 (en) * 1995-05-23 1995-07-19 Rieter Scragg Ltd Textile machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000073558A1 (de) * 1999-05-27 2000-12-07 Barmag Ag Texturiermaschine
US6430912B2 (en) 1999-05-27 2002-08-13 Barmag Ag Yarn false twist texturing apparatus
WO2005007951A1 (en) * 2003-07-19 2005-01-27 Rieter Textile Machinery France Heating arrangements
EP1526196A3 (de) * 2003-10-20 2006-07-19 Maschinenfabrik Rieter Ag Heizeinrichtung für einen Faden
WO2007028439A3 (de) * 2005-07-13 2007-06-07 Saurer Gmbh & Co Kg Vorrichtung zum falschdralltexturieren

Also Published As

Publication number Publication date
GB9719859D0 (en) 1997-11-19
JPH11131332A (ja) 1999-05-18
EP0903431A3 (de) 1999-09-15

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