US3339237A - Apparatus for converting tow into sliver - Google Patents

Apparatus for converting tow into sliver Download PDF

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Publication number
US3339237A
US3339237A US384928A US38492864A US3339237A US 3339237 A US3339237 A US 3339237A US 384928 A US384928 A US 384928A US 38492864 A US38492864 A US 38492864A US 3339237 A US3339237 A US 3339237A
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US
United States
Prior art keywords
rollers
tow
stretching
breaking
sets
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
US384928A
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English (en)
Inventor
Chezaud Jean Claude
Muller Pierre
Saint-Genis Robert
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.)
Rhodiaceta SA
Original Assignee
Rhodiaceta SA
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 Rhodiaceta SA filed Critical Rhodiaceta SA
Application granted granted Critical
Publication of US3339237A publication Critical patent/US3339237A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G1/00—Severing continuous filaments or long fibres, e.g. stapling
    • D01G1/06—Converting tows to slivers or yarns, e.g. in direct spinning
    • D01G1/08—Converting tows to slivers or yarns, e.g. in direct spinning by stretching or abrading

Definitions

  • variable staple length the curve of which, however, is not sufficiently similar to that of natural fibres.
  • one of the disadvantages of this method resides in the deterioration of the ends of the fibres, which is not conducive to a good sliding action of the fibres one upon the other during the subsequent stretching operations.
  • an apparatus for converting tow into sliver which includes sets of pro-stretching rollers arranged in a protruding fashion on each side of the apparatus and through which tow may be passed, and at least three sets of breaking rollers arranged in a protruding fashion subsequent to the prestretching rollers and through which the tow may be passed after passing through the pre-stretchin-g irollers.
  • apparatus A and E and dotted lines at B, C and D indicate the existence of three intermediate apparatus each of which represents a pre-stretchin-g train.
  • the apparatus shown at F, G and H are breaking trains.
  • the twos are stretched slightly below the breaking point of the elemental filaments of which they are composed.
  • the distance between the various breaking trains is advantageously made adjustable for example, by mounting the train G on movable platform 24 and acting upon it with hydraulic rams 25 and 26.
  • the stretching between the trains F and G is suflicient to break the elemental filaments of the tow.
  • the distance between the trains G and H is smaller than that between the trains F and G, so that the long fibres can be re-broken and a staple length curve can be obtained in which the slope, Le. the proportion of short fibre and long fibre in relation to the mean, is well adapted for working the sliver under optimum conditions in the succeeding preparing and spinning machines.
  • more than three breaking trains may be employed, for example if it is desired to reduce the mean height of the staple length curve.
  • the number of prestretching trains may be changed without departing from the scope of the present invention.
  • An apparatus for converting tow into sliver comprising a plurality of sets of pre-stretching rollers arranged in a protruding fashion on each side of the apparatus and through which tow may be passed, at least three sets of breaking rollers arranged in a protruding fashion subsequent to the pre-stretching rollers and through which the tow may be passed after passing through the pre-stretching rollers, drive means to drive said sets of rollers at predetermined surface velocities, a device for regulating said surface velocities in accordance with the desired stretching rate, said device comprising means for detecting said velocities, means for comparing the velocity detecting signals with reference values corresponding to the desired stretching rates, and means operatively connected to said drive means for adjusting the velocities of at least one set of said rollers in response to change in velocity of another of said sets of rollers to maintain the desired stretching rate.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
US384928A 1963-07-31 1964-07-24 Apparatus for converting tow into sliver Expired - Lifetime US3339237A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR943318A FR1377337A (fr) 1963-07-31 1963-07-31 Appareillage pour la transformation d'un câble de filaments continus textiles en un ruban de filaments discontinus

Publications (1)

Publication Number Publication Date
US3339237A true US3339237A (en) 1967-09-05

Family

ID=8809608

Family Applications (1)

Application Number Title Priority Date Filing Date
US384928A Expired - Lifetime US3339237A (en) 1963-07-31 1964-07-24 Apparatus for converting tow into sliver

Country Status (7)

Country Link
US (1) US3339237A (enrdf_load_stackoverflow)
BE (1) BE651203A (enrdf_load_stackoverflow)
CH (1) CH423081A (enrdf_load_stackoverflow)
ES (1) ES302667A1 (enrdf_load_stackoverflow)
FR (1) FR1377337A (enrdf_load_stackoverflow)
GB (1) GB1016860A (enrdf_load_stackoverflow)
NL (1) NL6408612A (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3913176A (en) * 1972-11-17 1975-10-21 Tematex Spa Apparatus for the draft and breaking of synthetic textile fibres
US4356690A (en) * 1978-03-24 1982-11-02 Toray Industries, Inc. Fasciated yarn
CN109145335A (zh) * 2017-06-28 2019-01-04 中国航发贵阳发动机设计研究所 一种通过预旋转提高轮盘低循环疲劳寿命的方法
CN110592731A (zh) * 2019-09-04 2019-12-20 海安国洋机械科技有限公司 一种阻燃腈纶纤维拉断装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2855757C2 (de) * 1978-12-22 1983-07-07 Vepa AG, 4125 Riehen, Basel Verfahren und Vorrichtung zum Herstellen eines verzugsfähigen Bandes
DE3775214D1 (en) * 1987-05-19 1992-01-23 Seydel Vermoegensverwaltung Reissmaschine.
BE1005144A6 (fr) * 1991-07-19 1993-05-04 Linard Christiane Dispositif de controle d'une masse de fibres entre plusieurs trains de cylindres pour l'obtention d'un recraquage en systeme peigne.
FR2874935A1 (fr) * 2004-09-09 2006-03-10 Schlumberger Sa N Dispositif de mise sous pression des rouleaux de pression superieurs contre les cylindres inferieurs d'une craqueuse

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2067062A (en) * 1935-10-21 1937-01-05 Whitin Machine Works Drawing mechanism for substantially elongated filaments
US2419320A (en) * 1943-05-08 1947-04-22 Lohrke James Louis Process and apparatus for producing staple fibers
US2737687A (en) * 1947-04-30 1956-03-13 Celanese Corp Production of textile materials
US2976578A (en) * 1958-01-29 1961-03-28 Templon Spinning Mills Inc Method and apparatus for treating acrylic fibers

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2067062A (en) * 1935-10-21 1937-01-05 Whitin Machine Works Drawing mechanism for substantially elongated filaments
US2419320A (en) * 1943-05-08 1947-04-22 Lohrke James Louis Process and apparatus for producing staple fibers
US2737687A (en) * 1947-04-30 1956-03-13 Celanese Corp Production of textile materials
US2976578A (en) * 1958-01-29 1961-03-28 Templon Spinning Mills Inc Method and apparatus for treating acrylic fibers

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3913176A (en) * 1972-11-17 1975-10-21 Tematex Spa Apparatus for the draft and breaking of synthetic textile fibres
US4356690A (en) * 1978-03-24 1982-11-02 Toray Industries, Inc. Fasciated yarn
US4667463A (en) * 1978-03-24 1987-05-26 Toray Industries, Inc. Process and apparatus for making fasciated yarn
CN109145335A (zh) * 2017-06-28 2019-01-04 中国航发贵阳发动机设计研究所 一种通过预旋转提高轮盘低循环疲劳寿命的方法
CN110592731A (zh) * 2019-09-04 2019-12-20 海安国洋机械科技有限公司 一种阻燃腈纶纤维拉断装置

Also Published As

Publication number Publication date
FR1377337A (fr) 1964-11-06
CH423081A (fr) 1966-10-31
ES302667A1 (es) 1962-12-16
BE651203A (enrdf_load_stackoverflow)
GB1016860A (en) 1966-01-12
NL6408612A (enrdf_load_stackoverflow) 1965-02-01

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