EP0764732B1 - Procédé pour fabriquer de fils fantaisie en utilisant des broches à double torsion - Google Patents

Procédé pour fabriquer de fils fantaisie en utilisant des broches à double torsion Download PDF

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Publication number
EP0764732B1
EP0764732B1 EP96810577A EP96810577A EP0764732B1 EP 0764732 B1 EP0764732 B1 EP 0764732B1 EP 96810577 A EP96810577 A EP 96810577A EP 96810577 A EP96810577 A EP 96810577A EP 0764732 B1 EP0764732 B1 EP 0764732B1
Authority
EP
European Patent Office
Prior art keywords
threads
thread
reserve
spindle
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.)
Expired - Lifetime
Application number
EP96810577A
Other languages
German (de)
English (en)
Other versions
EP0764732A1 (fr
Inventor
Arturo Ratti
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.)
Arratex Srl
Original Assignee
Arratex Srl
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 Arratex Srl filed Critical Arratex Srl
Publication of EP0764732A1 publication Critical patent/EP0764732A1/fr
Application granted granted Critical
Publication of EP0764732B1 publication Critical patent/EP0764732B1/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
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/34—Yarns or threads having slubs, knops, spirals, loops, tufts, or other irregular or decorative effects, i.e. effect yarns
    • D02G3/343—Yarns or threads having slubs, knops, spirals, loops, tufts, or other irregular or decorative effects, i.e. effect yarns using hollow spindles

Definitions

  • This invention relates to the field of the textile industry, in particular the sector relating to production of yarn using throwing machines.
  • a throwing machine is a device which has a number of single-twist, double-twist and/or cabling spindles, each of which is usually connected coaxially to a bobbin on which a thread is wrapped that may or may not be paired, in the course of production, with other threads in order to create the desired finished product, of the "fancy" type or another type, which is then picked up by traction via a collecting nozzle.
  • Pat. US-A-4.157.645 describes for example a device for the production of fancy yarns that works according to the method described above.
  • the inventor of this invention has conceived a process capable of making it possible to manufacture "fancy" thread using normal double-twist and/or cabling spindles in order to make a throwing machine more versatile and flexible, thus avoiding the need to replace spindles when switching from production of fancy yarns to yarns of another type and vice versa.
  • the object of the invention is a process for making "fancy" threads in a throwing machine by combining a tie thread that is effectively twisted from a rotating double-twist spindle having a reserve of one or more core or finishing threads paired in a situation of dummy twist, wherein using suitable feeders or other means, said core or finishing threads are introduced axially from below into this rotating spindle and are then caused to exit from this spindle in a direction perpendicular to their axis and are drawn parallel to said tie thread; the tie thread, core and finishing threads slide for a certain winding arc on the reserve, are twisted together, and are bound to form the fancy thread after they detach from the surface of this reserve to create the body of revolution around this axis, this "balloon", which is formed by enveloping the positions that are assumed by all these threads when they travel--by rotating around this axis--between the reserve and the collecting nozzle of the throwing machine.
  • Figure 1 shows a spindle with hollow shaft of known type being used to produce a yarn of the "fancy" type.
  • Figure 2 shows a double-twist and/or cabling spindle used to make a "fancy" yarn as per the process according to the invention.
  • Figure 1 shows a fancy yarn being produced via spindle 6 with hollow shaft 10 that is inserted coaxially into a bobbin 7, from which tie thread 3 is pulled out; to said tie thread a twist is applied by the rotation of bobbin 7 with spindle 6.
  • said tie thread 3 Via proper dummy twist equipment 11 that is integral with hollow shaft 10 of spindle 6, said tie thread 3 first leaves equipment 11 not twisted and parallel to one or more core threads 2 and/or finishing threads 1 (two in the figure) which are combined by this so-called dummy twist using methods known to those skilled in the art and is turned around threads 1 and 2 when it leaves equipment 11 in such a way as to block and bind the geometric configuration assumed by the threads following this dummy twist, yielding a yarn having the desired aesthetic quality and appearing to be an interlacement of a number of threads, all effectively twisted.
  • the numbers 18, 9 and 8 refer, respectively, to the feeder or other tensioner of core thread 2, the aperture for the introduction of finishing thread 1, and the feeder of said finishing thread 1.
  • Thread 3' that is unwound from bobbin 17, which does not turn with spindle 12, travels through an axial cavity 16 of the spindle, in which a first twist is imparted to it, and then leaves the spindle in a direction perpendicular to it via aperture 14, being wound and sliding along a winding arc around this reserve 19 before being pulled, while being kept rotating by spindle 12, properly shaped, towards the collecting nozzle 21 of the throwing machine (not shown). While travelling from reserve 19 to nozzle 21, another twist is applied to the thread, and this describes (while enveloping its successive positions) a body of revolution ⁇ that is also called a "balloon,” whose axis is axis K-K of spindle 12.
  • tie thread 3' while applying a succession of two effective twists to tie thread 3', one inside the spindle and one along the balloon, a dummy twist would be applied to finishing threads 2' and/or core threads 1', as described in the preceding case, causing them the exit from aperture 14 from which tie thread 3' can also exit; said tie thread will then be placed side by side with them (thread 3' can also exit from a different opening on reserve 19).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Claims (1)

  1. Procédé de fabrication de fils « de fantaisie » (15) dans une machine de moulinage par combinaison d'un lien de fil (3') qui est effectivement tordu à partir d'une broche tournante à double torsion (12) ayant une réserve (19) d'un ou plusieurs fils de noyau (2') ou de finition (1') qui sont associés dans une situation de torsion factice, dans laquelle en utilisant des dispositifs d'alimentation appropriés (22, 20) ou d'autres dispositifs, lesdits fils de noyau (2') ou de finition (1') étant axialement depuis le dessous dans cette broche tournante (12) et sont alors amenés à sortir de cette broche (12) dans une direction perpendiculaire à leur axe (K-K ) et tirés parallèlement à ce lien de fil (3'), le lien de fil (3 '), les fils de noyau (2') et de finition (1') étant alors enroulés, en tirant séparément sur la réserve (19), étant tordus ensemble, et étant liés pour former le fil de fantaisie (15) après qu'ils se détachent de la surface de cette réserve (19) pour créer le corps de révolution autour de cet axe (K-K), ce « ballon », formé en enveloppant les positions qui sont assumées par tous ces fils (1', 2', 3') lorsqu'ils se déplacent - en tournant autour de cet axe (K-K) - entre la réserve (19) et la buse de collecte (21) de la machine de moulinage.
EP96810577A 1995-09-19 1996-09-03 Procédé pour fabriquer de fils fantaisie en utilisant des broches à double torsion Expired - Lifetime EP0764732B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT95RM000622A IT1276186B1 (it) 1995-09-19 1995-09-19 Procedimento per ricavare fili fantasia mediante fusi di doppia torsione
ITRM950622 1995-09-19

Publications (2)

Publication Number Publication Date
EP0764732A1 EP0764732A1 (fr) 1997-03-26
EP0764732B1 true EP0764732B1 (fr) 1999-06-02

Family

ID=11403568

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96810577A Expired - Lifetime EP0764732B1 (fr) 1995-09-19 1996-09-03 Procédé pour fabriquer de fils fantaisie en utilisant des broches à double torsion

Country Status (6)

Country Link
EP (1) EP0764732B1 (fr)
AT (1) ATE180846T1 (fr)
DE (1) DE69602698T2 (fr)
ES (1) ES2131921T3 (fr)
GR (1) GR3030710T3 (fr)
IT (1) IT1276186B1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1306719B1 (it) * 1999-10-01 2001-10-02 Arratex Srl Apparecchiatura per torcitoi che realizzano fili "fantasia" mediantefusi di doppia torsione.
IT1307295B1 (it) * 1999-12-17 2001-10-30 Arratex Srl Procedimento per la preparazione di filati ondee o compensina.
IT201700073345A1 (it) * 2017-06-30 2018-12-30 Temat S N C Di Marzano Nicola & C Dispositivo ruotante di falsa torsione
IT202000020236A1 (it) * 2020-08-18 2022-02-18 Temat S N C Di Marzano Nicola & C Dispositivo e procedimento per la produzione di filati.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2344470A (en) * 1970-02-20 1972-06-22 Mcdonagh Et Retorderie De Chavanoz Process and apparatus for manufacturing fancy yarns
US4250701A (en) * 1978-08-31 1981-02-17 Techniservice Division, Textured Yarn Co., Inc. Apparatus and method for making loop chenille type yarn
US4157645A (en) * 1978-10-25 1979-06-12 Chenil Cont Gs. S.R.L. Production of a boucle type fancy yarn

Also Published As

Publication number Publication date
ITRM950622A1 (it) 1997-03-19
ES2131921T3 (es) 1999-08-01
IT1276186B1 (it) 1997-10-27
GR3030710T3 (en) 1999-11-30
EP0764732A1 (fr) 1997-03-26
ITRM950622A0 (fr) 1995-09-19
DE69602698D1 (de) 1999-07-08
ATE180846T1 (de) 1999-06-15
DE69602698T2 (de) 1999-09-30

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