EP0155240A2 - Maschine für die Herstellung von texturiertem Kreppgarn - Google Patents

Maschine für die Herstellung von texturiertem Kreppgarn Download PDF

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Publication number
EP0155240A2
EP0155240A2 EP85830034A EP85830034A EP0155240A2 EP 0155240 A2 EP0155240 A2 EP 0155240A2 EP 85830034 A EP85830034 A EP 85830034A EP 85830034 A EP85830034 A EP 85830034A EP 0155240 A2 EP0155240 A2 EP 0155240A2
Authority
EP
European Patent Office
Prior art keywords
yarn
spindle
machine
bobbin
feed
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
EP85830034A
Other languages
English (en)
French (fr)
Other versions
EP0155240A3 (en
EP0155240B1 (de
Inventor
Franco Bianchi
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.)
Officine Meccaniche Riva Srl
Original Assignee
Officine Meccaniche Riva 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
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Application filed by Officine Meccaniche Riva Srl filed Critical Officine Meccaniche Riva Srl
Priority to AT85830034T priority Critical patent/ATE64160T1/de
Publication of EP0155240A2 publication Critical patent/EP0155240A2/de
Publication of EP0155240A3 publication Critical patent/EP0155240A3/en
Application granted granted Critical
Publication of EP0155240B1 publication Critical patent/EP0155240B1/de
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

Definitions

  • the present invention relates to a machine for producing textured crepe yarn.
  • the yarn After being twisted, the yarn is placed in an autoclave, where it undergoes steaming which substantially reduces its tension due to the twisting.
  • the problem at the root of the present invention is that of devising a machine of the type specified which has structural and functional characteristics such as to overcome the disadvantages mentioned above with reference to the prior art.
  • a machine of the type specified which is characterised in that it includes, in a support frame, a yarn path extending between a spindle being unwound and a bobbin being wound, a first feed pulley acting on the yarn downstream of the spindle, a second feed pulley acting on the yarn upstream of the bobbin, a heater located
  • the machine 1 includes a support frame 2, substantially the height of a man, for example 1.80 metres, extending longitudinally as far as necessary.
  • the machine 1 further includes a plurality of operative units, each indicated 3 which repeat side by side along the frame 2, in two parallel lines of units 3, indicated 4 and 5,on opposite sides of the frame 2.
  • the units 3 are substantially identical to each other and hence a detailed description of only one of them is given below.
  • the unit 3 includes a spindle-holder 6, rotatably mounted with its axis A-A vertical on the foot of the frame 2.
  • a spindle 7 is mounted in the spindle-holder 6.
  • the unit 3 includes a coil yarn-guide 8 fixed to the frame 2.
  • a false-twist spindle 9 having a vertical axis of rotation B-B, is rotatably supported on the frame 2.
  • the frame 2 rotatably supports a feed shaft 10, having a longitudinally- extending horizontal axis C-C, on which there are keyed a first yarn-feed pulley 11 and a second yarn-feed pulley 12, substantially side-by-side.
  • each feed pulley 11 and 12 has a device 13 for varying the angle ⁇ , ⁇ respectively at which the yarn passes over the pulley, each device including a small pulley 14 freely- rotatably mounted at the end of an arm 15 which is, in turn, angularly displaceable about an axis D-D parallel to the axis C-C by means of a manually- operable lever hand grip 16.
  • the pulleys 11 and 12 act on the yarn with a tractive force which is predetermined according to the amplitude of the angle a or 3.
  • the unit 3 includes a bobbin- carrier rotatably supported substantially at the top of the frame 2 about a longitudinal axis E-E.
  • a bobbin indicated 18 is mounted on the bobbin- carrier 17.
  • the unit 3 further includes a heater 19 supported by the frame 2 and extending vertically through a distance approximately between the yarn-guide 8 and the shaft 10.
  • a passage 20 extends vertically within the heater 19 and has an upper inlet orifice 21 and a lower outlet orifice 22.
  • the unit 3 includes a yarn path, generally indicated 23, between the spindle 7 being unwound and the bobbin 18 being wound, this path comprising successive sections which will be described in detail below.
  • the yarn path 23 includes a first, ascending section 24 in which the yarn,in its initial state, is unwound from the spindle 7 and reaches the upper end of the spindle.
  • the section 25 is followed by an ascending section 26 which extends from the lower end of the spindle 7 up to the feed pulley 11. Along this section 26 the yarn passes through the yarn-guide 8, is guided thereby, and is in a double-twisted state having undergone further twisting when passing over the lower end of the spindle.
  • the section 26 is followed by a section 27 which extends from the pulley 11 to the false-twist spindle 9.
  • this section 27 the yarn passes through the passage 20 in the heater 19,entering through the orifice 21 and leaving through the orifice 22.
  • the section 27 descends from the pulley 11 to the outlet orifice 22 and then ascends to the false-twist spindle 9.
  • the yarn is in a double-twisted state to which a further twisty, for example S, is added, by the action of the false-twist spindle 9.
  • a further twisty for example S
  • the section 27 is followed by a final, substantially- ascending section 28, extending from the false-twist spindle 9 to the bobbin 18.
  • the yarn passes at a pre-established, adjustable angle ⁇ over the feed pulley 12.
  • the yarn is subjected, again through the action of the false-twist spindle 9, to a further twist in the opposite sense to the preceding twist, thus, for example, returning to the state of twist achieved in the section 26, and giving rise to a so-called the sect tion 26, and giving rise to a so-called crêpe-twisted textured yarn.
  • the yarn is wound on the bobbin 18.
  • the feed shafts 10 of the units 3 in the line 4 constitute a single shaft 29 extending along the frame 2
  • the feed shafts 10 of the units 3 of the line 5 also constitute another single shaft 30 extending along the frame 2.
  • each group being in a single body 31.
  • each single body 31 groups together the heaters of two units 3 lying side by side in the line 4 and two corresponding units 3 lying side by side in the line 5,each body being located centrally of the respective units.
  • the main advantage of the machine according to the invention lies in the fact that it has enabled a significant energy saving to be achieved. With the machine according to the invention, in fact, the steaming autoclave used hitherto has been entirely eliminated.
  • a further advantage results from the relatively low speed (substantially equal to the normal twisting speed) to which the yarn is subjected in the machine according to the invention.
  • This allows the false-twist spindle to rotate at a lower speed than hitherto in false-twist machines and, hence, gives operating conditions for the false-twist spindle which are much less critical. It may, in fact, rotate at a relatively low speed, as opposed to the very high speeds (600,000 revolutions per minute) needed in prior-art machines to ensure adequate productivity.
  • the machine according to the invention is simple and economical to construct by virtue of the fact that the feed pulleys provided downstream and upstream of the spindle being unwound and the bobbin being wound are keyed side by side on a single shaft.
  • Another factor that adds to the simple and economical construction of the machine according to the invention results from the fact that it includes several units located side by side in two lines, and that the units in both lines all have their feed pulleys keyed onto a single shaft.
  • a further advantage both from the energy-saving point of view and that of constructional simplicity of the machine, results from the grouping together of the heaters in groups of four with an evident reduction in the heat dissipated to the exterior.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
EP85830034A 1984-02-17 1985-02-14 Maschine für die Herstellung von texturiertem Kreppgarn Expired - Lifetime EP0155240B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85830034T ATE64160T1 (de) 1984-02-17 1985-02-14 Maschine fuer die herstellung von texturiertem kreppgarn.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1967684 1984-02-17
IT19676/84A IT1173293B (it) 1984-02-17 1984-02-17 Macchina per la produzione di un filato crespo testurizzato

Publications (3)

Publication Number Publication Date
EP0155240A2 true EP0155240A2 (de) 1985-09-18
EP0155240A3 EP0155240A3 (en) 1986-03-26
EP0155240B1 EP0155240B1 (de) 1991-06-05

Family

ID=11160307

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85830034A Expired - Lifetime EP0155240B1 (de) 1984-02-17 1985-02-14 Maschine für die Herstellung von texturiertem Kreppgarn

Country Status (6)

Country Link
EP (1) EP0155240B1 (de)
JP (1) JPS60239533A (de)
AT (1) ATE64160T1 (de)
DE (1) DE3583049D1 (de)
IN (1) IN163934B (de)
IT (1) IT1173293B (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0533596A1 (de) * 1991-09-20 1993-03-24 Icbt Verbesserte Vorrichtung zum kontinuierlichen Drallen und eine zusätzliche Texturierbehandlung eines synthetischen Garnes
EP1367156A1 (de) * 2002-05-30 2003-12-03 Aiki Seisakusyo Ltd. Fadenverarbeitungsmaschine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1138472A (fr) * 1954-12-01 1957-06-14 Procédé et dispositif pour la production en continu d'un fil ou filé frisé et élastique, à partir de filaments ou fibres thermoplastiques, par exemple, de polyamides linéaires synthétiques
GB818000A (en) * 1955-09-19 1959-08-12 Hans Perlinger Method of and apparatus for crimping wholly or partially synthetic threads and thread strands
FR1190668A (fr) * 1956-12-04 1959-10-14 Scragg & Sons Procédé et appareil pour la production de fil crêpé
FR2389696A1 (en) * 1977-04-29 1978-12-01 Asa Sa Heating device for back=to=back false twist texturising machines - has common central part with heaters for treatment of yarns from each texturising unit
FR2491960A1 (fr) * 1980-10-14 1982-04-16 Ardeche Filatures Moulinages Procede pour la fabrication d'un fil de fantaisie

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0533596A1 (de) * 1991-09-20 1993-03-24 Icbt Verbesserte Vorrichtung zum kontinuierlichen Drallen und eine zusätzliche Texturierbehandlung eines synthetischen Garnes
FR2681612A1 (fr) * 1991-09-20 1993-03-26 Icbt Machine perfectionnee permettant d'effectuer, en continu, le retordage et un traitement complementaire de texturation sur un fil chimique.
US5351471A (en) * 1991-09-20 1994-10-04 Icbt Machine having a reduced height for twisting and texturing a yarn
EP1367156A1 (de) * 2002-05-30 2003-12-03 Aiki Seisakusyo Ltd. Fadenverarbeitungsmaschine

Also Published As

Publication number Publication date
EP0155240A3 (en) 1986-03-26
IN163934B (de) 1988-12-10
EP0155240B1 (de) 1991-06-05
JPS60239533A (ja) 1985-11-28
DE3583049D1 (de) 1991-07-11
IT1173293B (it) 1987-06-18
ATE64160T1 (de) 1991-06-15
IT8419676A0 (it) 1984-02-17

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