EP1561845B1 - Verfahren und Vorrihtung zum Überwachen des Kernelements beim Herstellen von Core-Garn - Google Patents

Verfahren und Vorrihtung zum Überwachen des Kernelements beim Herstellen von Core-Garn Download PDF

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Publication number
EP1561845B1
EP1561845B1 EP20050002084 EP05002084A EP1561845B1 EP 1561845 B1 EP1561845 B1 EP 1561845B1 EP 20050002084 EP20050002084 EP 20050002084 EP 05002084 A EP05002084 A EP 05002084A EP 1561845 B1 EP1561845 B1 EP 1561845B1
Authority
EP
European Patent Office
Prior art keywords
core
roller
core thread
pivot arm
thread
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.)
Not-in-force
Application number
EP20050002084
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1561845A3 (de
EP1561845A2 (de
Inventor
Robert Nägeli
Stefan Zimmermann
Stefania Massieri
Hans-Peter Schatzmann
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.)
Maschinenfabrik Rieter AG
Original Assignee
Maschinenfabrik Rieter AG
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 Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP1561845A2 publication Critical patent/EP1561845A2/de
Publication of EP1561845A3 publication Critical patent/EP1561845A3/de
Application granted granted Critical
Publication of EP1561845B1 publication Critical patent/EP1561845B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • D01H13/14—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements
    • D01H13/16—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements responsive to reduction in material tension, failure of supply, or breakage, of material
    • D01H13/1616—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements responsive to reduction in material tension, failure of supply, or breakage, of material characterised by the detector
    • D01H13/1633—Electronic actuators
    • 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
    • D02G3/36—Cored or coated yarns or threads
    • D02G3/367—Cored or coated yarns or threads using a drawing frame

Definitions

  • the invention relates to a method and an apparatus for producing core yarn, wherein a core thread is fed to a roving before the roving is solidified by rotation, and a device therefor.
  • core yarn is produced by inserting a core thread into the fiber roving during the stretching of a roving and solidifying it by twisting it and wrapping it around by sheath fibers so that the core thread is no longer as visible as possible.
  • the core thread substantially determines the strength and elongation of the produced core yarn, while the sheath fibers primarily determine the feel and appearance of the yarn. Therefore, synthetic threads are usually used as core threads, while staple fibers, such as cotton and / or wool, are mostly used as sheath fibers.
  • the object of the present invention is to improve and accelerate the production of core yarns.
  • the core thread is monitored for breakage prior to combination with the roving.
  • the core thread meets certain specifications.
  • the specifications may relate, for example, to its shape. If the diameter of the core thread falls below a desired limit, this can also be detected by the monitoring device. This also applies if, for example, the core thread has a specific coating which can be recognized in color.
  • a roller is assigned to the core thread which rotates with the core thread.
  • the rotation of this roller is observed.
  • this can be done optically, for example, by a corresponding photo sensor as a receiver reflected light from parts of the wheel, such as spokes, webs or the hub recognizes.
  • a transmitter is assigned to the photosensor, which emits light, which is reflected. When this light reaches the receiver in a pulsating manner, it means that the roller is rotating, that is, no thread break has taken place. However, if the receiver emits a continuous signal to a monitoring unit, this means that the roller is standing and the core thread is broken.
  • a limit value can also be entered in the control, so that an alarm signal is already emitted when a certain pulse rhythm is undershot.
  • the roller is located on a pivoting arm, in which the entire testing device for the rotation of the roller is included. This is especially true for the above-mentioned light source and the receiver, where, as also mentioned above, other test equipment can be used.
  • FIG. 1 a roving 1 is passed through a drafting 2 and there stretched or refined in a known manner.
  • the drafting system 2 consists essentially of known top rollers 3.1 to 3.3 and bottom rollers 4.1 to 4.3, wherein top roller 3.2 and bottom roller 4.2 still cooperate with also known straps 5.1 and 5.2.
  • the core thread is, as in the DE 198 15 054 C1 described, combined with the roving 1. Both leave as a core yarn the drafting 2 in the direction of yarn sleeve 9. Before running onto the yarn tube 9, the core yarn 8 passes through a yarn guide (Sauschwänzle) 10 and a ring traveler eleventh
  • the core thread 6 is assigned a monitoring device 12.
  • This has a housing-fixed support arm 13 which is connected via a hinge 14 with a pivot arm 15. At the free end of the pivot arm 15 sits a roller 16, which is partially wrapped by the core thread 6 and driven by this.
  • Parts of the pivot arm 15 are in FIG. 2 shown. At one end, the swivel arm 15 has a joint sleeve 17, which forms part of the joint 14 with the support arm 13.
  • a print 19 is mounted on a Schwenkarmgephinuse 18, on which a not shown in detail electronics for controlling the monitoring of the core thread 6 is arranged.
  • This also includes a switch 20, with the electronics, for example, can be turned off when pivoting the pivot arm 15.
  • the electronics also includes a transmitter 21 and an adjacently arranged, not shown receiver for example, an optical signal.
  • Transmitter 21 and receiver are inserted into corresponding receivers 22 and 23 in the swivel arm housing 18 and can view spokes 24 of the roller 16.
  • the roller 16 still has a groove 25 for the core thread. 6
  • the core thread 6 is subtracted from the core thread store 7 and fed to the roving 1. Before the union with the roving 1 of the core thread 6 rotates the roller 16. In this case, the core thread 6 rotates the roller 16, wherein the rotation is observed.
  • the transmitter 21 emits a light which is reflected by the spokes 24 to the receiver. If the received light is pulsating, there is no thread break. On the other hand, if the received light is steady, there is a thread break, as either light from a spoke 24 or no light is constantly reflected.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
EP20050002084 2004-02-04 2005-02-02 Verfahren und Vorrihtung zum Überwachen des Kernelements beim Herstellen von Core-Garn Not-in-force EP1561845B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004005635 2004-02-04
DE200410005635 DE102004005635A1 (de) 2004-02-04 2004-02-04 Verfahren zum Herstellen von Core-Garn

Publications (3)

Publication Number Publication Date
EP1561845A2 EP1561845A2 (de) 2005-08-10
EP1561845A3 EP1561845A3 (de) 2006-12-20
EP1561845B1 true EP1561845B1 (de) 2013-04-03

Family

ID=34673164

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20050002084 Not-in-force EP1561845B1 (de) 2004-02-04 2005-02-02 Verfahren und Vorrihtung zum Überwachen des Kernelements beim Herstellen von Core-Garn

Country Status (3)

Country Link
EP (1) EP1561845B1 (zh)
CN (1) CN1651623B (zh)
DE (1) DE102004005635A1 (zh)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4367647B2 (ja) * 2005-05-16 2009-11-18 村田機械株式会社 コアヤーン紡績における芯糸検出方法及び装置
WO2007140639A1 (de) * 2006-06-07 2007-12-13 Uster Technologies Ag Verfahren und vorrichtung zur detektion einer seele in einem coregarn
CH699218A2 (de) * 2008-07-17 2010-01-29 Amsler Tex Ag Vorrichtung und Verfahren zur Überwachung zur Herstellung von Coregarn.
CN102534896B (zh) * 2012-01-13 2014-06-04 顾金华 细纱机纱线加捻断头检测方法
CH711736A1 (de) 2015-11-11 2017-05-15 Rieter Ag Maschf Verfahren zur Herstellung von elastischem Coregarn mit einer Ringspinnmaschine.

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1054217A (fr) * 1951-12-10 1954-02-09 Soc De Traitements Electrolytiques Et Electrothermiques Capteur d'efforts notamment pour continu à filer
CH592567A5 (en) * 1976-01-14 1977-10-31 Peyer Siegfried Yarn break monitor - has disc driven by yarn and connected to AC generator to produce control signals and dispense with voltage stabiliser and supply
DE3123476C2 (de) * 1981-06-13 1984-05-17 Skf Kugellagerfabriken Gmbh, 8720 Schweinfurt Arbeitsverfahren und Vorrichtung zum Stillsetzen einer Arbeitsstelle einer Spinn- oder Zwirnmaschine
FR2570092A1 (fr) * 1984-09-13 1986-03-14 Asa Sa Dispositif mesureur et detecteur de casse de fil sur une machine textile
EP0480898A1 (fr) * 1990-10-04 1992-04-15 Barco Automation, Naamloze Vennootschap Procédé de mesure pour la surveillance et la commande de métiers à filer ou à retordre à anneaux et curseurs, et appareil de mesure de la vitesse de rotation des fils entraînés par les curseurs
DE19642222A1 (de) * 1996-10-12 1998-04-16 Zinser Textilmaschinen Gmbh Vorrichtung zum Herstellen von Coregarn
US6460322B1 (en) * 1999-09-22 2002-10-08 Hirashio Co., Ltd. Cored yarn, and method and apparatus for producing the same
CN2417183Y (zh) * 1999-12-16 2001-01-31 上海恒源祥绒线有限公司 纺织用转速检测装置
CN2543967Y (zh) * 2002-03-06 2003-04-09 倪远 反光式包芯纱纺纱断丝监察装置

Also Published As

Publication number Publication date
EP1561845A3 (de) 2006-12-20
EP1561845A2 (de) 2005-08-10
CN1651623A (zh) 2005-08-10
CN1651623B (zh) 2012-03-21
DE102004005635A1 (de) 2005-08-25

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