EP0435366A2 - Tordeur pour une machine textile permettant le bobinage de bobines compactes - Google Patents

Tordeur pour une machine textile permettant le bobinage de bobines compactes Download PDF

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Publication number
EP0435366A2
EP0435366A2 EP90203275A EP90203275A EP0435366A2 EP 0435366 A2 EP0435366 A2 EP 0435366A2 EP 90203275 A EP90203275 A EP 90203275A EP 90203275 A EP90203275 A EP 90203275A EP 0435366 A2 EP0435366 A2 EP 0435366A2
Authority
EP
European Patent Office
Prior art keywords
sliver
trumpet
rotary
twister
mobile
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Withdrawn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
EP90203275A
Other languages
German (de)
English (en)
Other versions
EP0435366A3 (en
Inventor
Sandro Sartoni
Eraldo Minguzzi
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.)
Savio SpA
Savio Macchine Tessili SpA
Original Assignee
Savio SpA
Savio Macchine Tessili SpA
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 Savio SpA, Savio Macchine Tessili SpA filed Critical Savio SpA
Publication of EP0435366A2 publication Critical patent/EP0435366A2/fr
Publication of EP0435366A3 publication Critical patent/EP0435366A3/en
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/04—Guides for slivers, rovings, or yarns; Smoothing dies
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/04—Guides for slivers, rovings, or yarns; Smoothing dies
    • D01H13/06—Traversing arrangements
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H7/00—Spinning or twisting arrangements
    • D01H7/92—Spinning or twisting arrangements for imparting transient twist, i.e. false twist

Definitions

  • This invention relates to an improved twister device for a winding carriage, which enables compact bobbins to be formed from the sliver leaving the gill box or derived machine.
  • sliver is used to indicate a textile fibre roving, a textile fibre sliver or any other textile fibre aggregate.
  • the sliver leaving the known calender units of the gill box must be subjected to a so-called "false twist" operation before being wound onto the mandrel of the winding carriage.
  • the "false twist” is imparted to give the sliver the necessary roundness and strength so that its subsequent unwinding can take place without difficulty and without breakage. In this respect, when such a non-twisted or imperfectly wound sliver is subsequently unwound from its collection bobbin it can easily suffer breakage.
  • Rotary funnel twister and condenser devices are normally used in textile machines such as gill boxes to condense or compact a sliver in the form of loose textile fibres before its positioning and collection in helix form on the circumferential surface of the bobbin under formation.
  • the sliver fed into the trumpet is substantially without twist, and when this sliver passes through the trumpet false twist device it is twisted about itself, this twisting as is well known to the expert of the art causing it to assume compactness and a reduction in its transverse dimension, in that the air retained between the fibres is eliminated so that the sliver loses most of its volume.
  • the trumpet is constructed and operated in the manner traditional in the art, it consisting essentially of a funnel rotating about its axis while being simultaneously subjected to axial to-and-fro movement along a path equal in length substantially to the length of the desired bobbin.
  • the funnel reverses its direction of rotation at the ends of the bobbin under formation, it rotating reciprocatingly in the two directions according to its direction of linear movement.
  • the invention proposes an improved twister device for a winding carriage collecting the sliver emerging from the gill box, which is able to wind compact bobbins of cylindrical form using drive means which rotate the rotary trumpet independently of the to-and-fro linear movement of said mobile unit, for the purpose of providing constant uniform rotation in a single direction to the sliver travelling within the rotary trumpet before being deposited on the surface of the bobbin under formation.
  • Said drive means comprise components which receive rotation from the drive shaft, to transmit single-direction rotary motion, via a linkage comprising pulleys, belts and cables, to the trumpet of the mobile twister unit, said trumpet imparting the false twist to the sliver an instant before this latter is deposited as a crossed winding on the circumferential surface of the bobbin under formation.
  • the device of the invention enables constant rotation of the rotary trumpet to be achieved, resulting in improved binding of the various layers of sliver and thus enabling its subsequent unwinding to be achieved without abnormal tension and thus without sliver breakage.
  • the accompanying drawing shows a preferred embodiment, which is non-limiting in terms of the relative positions of the components and the consequent simplifications which can derive therefrom. Said embodiment is described with reference to the single figure of the accompanying drawing.
  • 1 is the drive shaft which rotates with constant rotation to transversely drive the mobile twister unit 8 and rotate the twister device of the present invention
  • 3 is a belt, cord or any flexible element transmitting rotary motion from the transmission pulley 2 to the pulley 5 via the idle deviation pulleys 4.
  • the pulley 2 is rigid with the shaft 9 and the pulley 5 is rigid and integral with the rotary trumpet 7 of the mobile twister unit 8
  • 6 is the rocker arm or bar pivoted about the shaft 9, this being mobile to enable the unit 8 to travel with sliding to-and-fro movement along the guide shaft 10, in the direction of the arrows 14.
  • Said arm 6 rocks angularly by the action of the connecting rod 18 which is connected to it by a connection member 16.
  • Said connecting rod 18 is driven by the crank 21 via the connection pin 19, the crank 21 being rotated by the drive shaft 1 on which it is rigidly fixed;
  • 11 is the drive roller for the bobbin 12 under formation;
  • 15 is a spiral in the form of a helical spring within which the sliver 30 slides before entering the rotary trumpet 7.
  • Said spiral 15, rigidly fixed to the mobile unit 8 helps to compact the sliver 30, as is well known in the art; 22 are flexible belts or similar elements, advantageously toothed, to transmit motion via the toothed wheels 24, without the minimum slippage.
  • the motor driving the drive shaft 1 which rotates constantly in the same direction is not shown.
  • Said shaft 1 simultaneously drives the crank 21 and the toothed belt 22.
  • This latter via the toothed wheels 24 and toothed belts 22, transmits motion to the belt 3, which by means of the pulley 5 transmits constant uniform rotary motion to the rotary trumpet 7, which rotates in the direction of the arrow 20.
  • the mobile unit 8 slides linearly along the guide shaft 10 with a to-and-fro movement, the rotary trumpet 7 thus rotating about itself while continuously moving linearly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP19900203275 1989-12-21 1990-12-12 Improved twister device for a winding carriage enabling compact bobbins to be formed Withdrawn EP0435366A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT02278989A IT1237925B (it) 1989-12-21 1989-12-21 Dispositivo torsionatore perfezionato per carro bobinatore che permette di formare bobine compatte
IT2278989 1989-12-21

Publications (2)

Publication Number Publication Date
EP0435366A2 true EP0435366A2 (fr) 1991-07-03
EP0435366A3 EP0435366A3 (en) 1991-09-18

Family

ID=11200463

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900203275 Withdrawn EP0435366A3 (en) 1989-12-21 1990-12-12 Improved twister device for a winding carriage enabling compact bobbins to be formed

Country Status (2)

Country Link
EP (1) EP0435366A3 (fr)
IT (1) IT1237925B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103924334A (zh) * 2014-04-10 2014-07-16 湖州市千金丝织厂 一种化纤倍捻机结构优化的导纱横动装置
CN112080845A (zh) * 2020-09-07 2020-12-15 佛山市爱纺纺织有限公司 应用于大圆机带捻纱功能的放纱架装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2674013A (en) * 1950-01-21 1954-04-06 Barre Wool Combing Company Ltd Sliver feed mechanism
US2757876A (en) * 1952-05-16 1956-08-07 Warner Swasey Co Undershot baller
GB1111129A (en) * 1964-07-10 1968-04-24 Mackie & Sons Ltd J Improvements in winding apparatus
DE1629309C2 (de) * 1966-11-09 1973-01-04 Josef Baer Maschinenfabrik, 7987 Weingarten Antriebssystem für Wickelmaschinen
DE1560584A1 (de) * 1966-12-03 1971-02-11 Reiners Walter Dr Ing Spulmaschine mit hin- und hergehendem Fadenfuehrer
IT1205058B (it) * 1987-06-19 1989-03-10 Savio Spa Dispositivo torsionatore per carro bobinatore

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103924334A (zh) * 2014-04-10 2014-07-16 湖州市千金丝织厂 一种化纤倍捻机结构优化的导纱横动装置
CN112080845A (zh) * 2020-09-07 2020-12-15 佛山市爱纺纺织有限公司 应用于大圆机带捻纱功能的放纱架装置
CN112080845B (zh) * 2020-09-07 2021-09-14 佛山市爱纺纺织有限公司 应用于大圆机带捻纱功能的放纱架装置

Also Published As

Publication number Publication date
IT1237925B (it) 1993-06-18
EP0435366A3 (en) 1991-09-18
IT8922789A1 (it) 1991-06-21

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