EP0534895B1 - Chambre d'étirage - Google Patents

Chambre d'étirage Download PDF

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Publication number
EP0534895B1
EP0534895B1 EP92810498A EP92810498A EP0534895B1 EP 0534895 B1 EP0534895 B1 EP 0534895B1 EP 92810498 A EP92810498 A EP 92810498A EP 92810498 A EP92810498 A EP 92810498A EP 0534895 B1 EP0534895 B1 EP 0534895B1
Authority
EP
European Patent Office
Prior art keywords
chamber
stretching
liquid
stretching chamber
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.)
Expired - Lifetime
Application number
EP92810498A
Other languages
German (de)
English (en)
Other versions
EP0534895A1 (fr
Inventor
Felix Graf
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 EP0534895A1 publication Critical patent/EP0534895A1/fr
Application granted granted Critical
Publication of EP0534895B1 publication Critical patent/EP0534895B1/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
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D02J1/223—Stretching in a liquid bath
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/12—Stretch-spinning methods
    • D01D5/14—Stretch-spinning methods with flowing liquid or gaseous stretching media, e.g. solution-blowing

Definitions

  • the invention is in the field of textile technology and relates to a drawing chamber arrangement according to the preamble of the independent claim, as is known for example from US-A-3 002 804.
  • Synthetic filaments in particular linear polymer filaments (plain yarns) are stretched after extrusion in order to orient the molecules in the yarn direction. It has proven to be advantageous to use liquid baths for such stretching, in which the stretching is brought about by a combination of hydrodynamic and mechanical braking. In particular, it has proven to be advantageous to carry out the stretching in quasi-closed chambers (stretching chambers) in which a chamber liquid is circulated in a direction opposite to the thread. It has also proven to be advantageous to connect devices to such stretching chambers in which excess liquid carried by the thread out of the stretching chamber is separated. In the arrangement of the drawing chamber and separating device, several threads can also be drawn in parallel.
  • Stretching chambers for carrying out the stretching process are described, for example, in EP-A-0384886 by the same applicant. These are chambers that are closed except for narrow inlet and outlet channels for the threads and inlet and outlet channels for the chamber fluid.
  • the threads are guided at the entrance, at the exit and / or in the chamber via thread guide elements, on which mechanical friction occurs between the thread and the thread-guiding surface. This friction is small even at very high thread speeds, since the thread guide elements are immersed in the chamber liquid or the thread running over their surface is soaked with liquid.
  • FIG. 1 schematically shows an embodiment of the stretching chamber arrangement according to the invention. It essentially consists of a stretching chamber 1, a separation chamber 2 and a liquid tank 3.
  • the liquid is conveyed by a feed pump 4 through a feed line 5 with a valve 6 below into the stretching chamber 1 and from an overflow 1.3 on top of the stretching chamber 1 through a
  • the discharge line 7 is directed back into the tank 3.
  • the liquid is drawn off from the separation chamber 2 by a suction pump 8 through a suction line 9.
  • the draw chamber arrangement according to the invention now has a second feed line 10 for pre-moistening the threads.
  • This bypasses the valve 6 of the first feed line 5, so it cannot be shut off, and leads into the area of the thread inlet channel 11 of the draw chamber, advantageously in the thread running direction in front of the first thread guide element of the arrangement.
  • the second feed line 10 opens into the stationary part 1.1 of the stretching chamber.
  • the mouth openings (see also FIG. 2) of the second feed line 10 are directed against the threads running through the chamber and are so small that only a very small amount of the liquid can escape against the threads when the feed pump 4 is at full capacity, just enough to the Moisten threads and reduce friction on the following thread guide elements.
  • the liquid supply through the pre-moistening openings should amount to 2 to 30% of the thread weight running through.
  • An adjustment by the hole size, by an adjustable throttle 10.1 and / or by the feed pressure of the feed pump 4 is possible.
  • FIG. 2 shows a section through the area of the thread inlet channel 11 into an exemplary embodiment of a draw chamber 1 with pre-moistening.
  • the figure shows a section parallel to the thread running direction and perpendicular to the plane in which the threads run through the chamber. The entry of the threads F is clearly visible thereon.
  • the threads run through Separating elements 20 are spaced apart from one another into the thread inlet channel 11 of the draw chamber and are guided in the area of the thread inlet channel 11 before entering the draw chamber cavity 21 by two thread guide elements 22 and 23 and are slightly deflected in the process.
  • the pre-moistening openings 24 are arranged in the thread running direction in front of these two deflection points. In this exemplary embodiment, these are channels with an opening cross section of 0.2 ⁇ 1.5 mm.
  • both the thread guide elements 22 and 23 and the separating elements 20 are immersed in the chamber liquid, which extends into the overflow 1.3 on the stretching chamber, so that the friction generated thereon remains small.
  • the thread and / or the thread guide elements are sufficiently wetted by the liquid emerging from the pre-moistening openings 24 in order to prevent an intolerably high mechanical braking of the threads by dry friction.
  • Another embodiment variant is to lead the second feed line to known application thread guides which are arranged directly in front of the stretching chamber.
  • Such an arrangement of the pre-moistening means outside the stretching chamber can also prevent dry friction on the separating elements arranged in front of the thread inlet channel.
  • the device becomes significantly more complex, since appropriate means such as during application must be used to ensure that the pre-moistening liquid is applied to the threads in a precisely controlled amount, since any excess of liquid will contaminate the following apparatus.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Claims (9)

  1. Arrangement de chambre d'étirage avec une chambre d'étirage (1) utilisée pour l'étirage d'un fil (F) dirigé à travers la chambre (1), avec une alimentation en liquide (5, 10) et une évacuation de liquide (8, 9), à l'aide desquelles le liquide de la chambre est mis en circulation,
    caractérisé par le fait que
    l'arrangement possède des moyens de préhumidification (10, 24), indépendants du niveau de remplissage de la chambre d'étirage (1), avec lesquels les fils (F), rentrant dans la chambre d'étirage, sont humidifiés avant leur entrée dans l'espace creux (21) de la chambre d'étirage, et avant le remplissage de la chambre avec du liquide de chambre.
  2. Arrangement de chambre d'étirage selon revendication 1,
    caractérisé par le fait
    qu'il possède un circuit de liquide constitué essentiellement par une première conduite d'amenée (5) pouvant être obturée et débouchant dans la chambre d'étirage (1), une conduite d'évacuation (7) sortant de la chambre d'étirage (1), un réservoir de liquide (3) et un moyen de pompage (4), et qu'il possède une deuxième conduite d'amenée (10) qui contourne les moyens d'obturation (6) de la première conduite d'amenée (5), et qui se termine dans la zone du canal d'entrée de fil (11) de la chambre d'étirage sous forme d'au moins une ouverture de préhumidification dirigée contre le sens de passage des fils.
  3. Arrangement de chambre d'étirage selon revendication 2,
    caractérisé par le fait que
    les ouvertures de préhumidification (24) sont disposées dans le canal d'entrée de fil (11) de la chambre d'étirage.
  4. Arrangement de chambre d'étirage selon revendication 3,
    caractérisé par le fait que
    la chambre d'étirage (1) possède une partie stationnaire (1.1) et une partie (1.2) pouvant être ouverte par basculement par rapport à celle-ci, et que les ouvertures de préhumidification (24) sont disposées dans la partie stationnaire (1.1) de la chambre.
  5. Arrangement de chambre d'étirage selon revendication 4,
    caractérisé par le fait
    qu'une ouverture de préhumidification (24) est prévue pour chaque fil traversant la chambre d'étirage, et que ces ouvertures sont disposées horizontalement les unes à côté des autres, et séparées les unes des autres avec des distances correspondant essentiellement aux distances entre fils.
  6. Arrangement de chambre d'étirage selon revendication 5,
    caractérisé par le fait
    qu'une quantité de liquide, correspondant a 2 jusque 30% du poids de fil parcourant, est transportée à travers les ouvertures de préhumidification.
  7. Arrangement de chambre d'étirage selon une des revendications 2 à 6 ,
    caractérisé par le fait
    qu'il possède un étranglement réglable (10.1), à l'aide duquel la quantité de liquide, qui est transportée à travers les ouvertures de préhumidification, peut être réglée.
  8. Arrangement de chambre d'étirage selon une des revendications 2 à 7 ,
    caractérisé par le fait
    qu'il possède un filtre (10.2) par lequel le liquide est libéré de ses impuretés, avant d'être transporté a travers les ouvertures de préhumidification.
  9. Arrangement de chambre d'étirage selon revendication 1,
    caractérisé par le fait que,
    immédiatement avant le canal d'entrée de fil (11) dans la chambre d'étirage (1), vu dans le sens de déplacement de fil, l'arrangement possède un guide-fil d'application pour chacun des fils, guide-fil qui est alimenté en liquide de chambre.
EP92810498A 1991-09-23 1992-06-30 Chambre d'étirage Expired - Lifetime EP0534895B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2820/91A CH683923A5 (de) 1991-09-23 1991-09-23 Streckkammeranordnung.
CH2820/91 1991-09-23

Publications (2)

Publication Number Publication Date
EP0534895A1 EP0534895A1 (fr) 1993-03-31
EP0534895B1 true EP0534895B1 (fr) 1996-02-07

Family

ID=4242324

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92810498A Expired - Lifetime EP0534895B1 (fr) 1991-09-23 1992-06-30 Chambre d'étirage

Country Status (5)

Country Link
US (1) US5386618A (fr)
EP (1) EP0534895B1 (fr)
JP (1) JPH05222642A (fr)
CH (1) CH683923A5 (fr)
DE (1) DE59205290D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106435786A (zh) * 2016-10-24 2017-02-22 中复神鹰碳纤维有限责任公司 一种在线控制蒸汽饱和度的装置及其方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1197489A (zh) * 1996-07-04 1998-10-28 巴马格股份公司 用于湿纺的装置和方法
DE10060300A1 (de) * 1999-12-10 2001-06-21 Rieter Ingolstadt Spinnerei Verfahren und Vorrichtung zum Verstrecken von textilen Fasern
AU2002318490A1 (en) * 2002-07-09 2004-03-03 Ok-Kyo Seo Manufacturing process of drawn anti-felting worsted yarn, drawn anti-felting worsted yarn and low speed drawing machine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3002804A (en) * 1958-11-28 1961-10-03 Du Pont Process of melt spinning and stretching filaments by passing them through liquid drag bath

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2385403A (en) * 1941-04-08 1945-09-25 Du Pont Method for stretching cellulose ester yarn
US2425037A (en) * 1942-07-11 1947-08-05 British Celanese Fluid treating apparatus for yarns
NL290441A (fr) * 1962-03-23
US4059668A (en) * 1973-11-13 1977-11-22 Monsanto Company Method of stretching a tow
US3896530A (en) * 1973-11-16 1975-07-29 Denis Albert Edward Mattingly Apparatus for heating textile yarns and filaments
US3883718A (en) * 1974-01-31 1975-05-13 Celanese Corp Apparatus for thermally processing of continuous lengths of fibrous materials
US4047889A (en) * 1976-01-09 1977-09-13 Martin Processing, Inc. Process for the rapid, continuous and waterless dyeing of textile and plastic materials
GB1566955A (en) * 1977-01-27 1980-05-08 Heathcoat & Co Ltd Heating and drawing of synthetic filaments
US4316312A (en) * 1980-09-19 1982-02-23 Allied Corporation Apparatus for intermittent application of fluid to yarn at a texturing device
DE59002052D1 (de) * 1989-02-24 1993-09-02 Rieter Ag Maschf Streckkammer.
DE4016045A1 (de) * 1990-05-18 1991-11-21 Sucker & Franz Mueller Gmbh Verfahren und vorrichtung zum schlichten von filamentgarn

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3002804A (en) * 1958-11-28 1961-10-03 Du Pont Process of melt spinning and stretching filaments by passing them through liquid drag bath

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106435786A (zh) * 2016-10-24 2017-02-22 中复神鹰碳纤维有限责任公司 一种在线控制蒸汽饱和度的装置及其方法
CN106435786B (zh) * 2016-10-24 2020-01-21 中复神鹰碳纤维有限责任公司 一种在线控制蒸汽饱和度的装置及其方法

Also Published As

Publication number Publication date
US5386618A (en) 1995-02-07
CH683923A5 (de) 1994-06-15
DE59205290D1 (de) 1996-03-21
EP0534895A1 (fr) 1993-03-31
JPH05222642A (ja) 1993-08-31

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