EP0636720A1 - Vorrichtung zur thermischen Behandlung von laufenden Garnen - Google Patents

Vorrichtung zur thermischen Behandlung von laufenden Garnen Download PDF

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Publication number
EP0636720A1
EP0636720A1 EP94420200A EP94420200A EP0636720A1 EP 0636720 A1 EP0636720 A1 EP 0636720A1 EP 94420200 A EP94420200 A EP 94420200A EP 94420200 A EP94420200 A EP 94420200A EP 0636720 A1 EP0636720 A1 EP 0636720A1
Authority
EP
European Patent Office
Prior art keywords
wire
temperature
zones
heating block
oven
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
EP94420200A
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English (en)
French (fr)
Other versions
EP0636720B1 (de
Inventor
Carlos Matas Gabalda
Pierre Mirabel
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.)
ICBT Yarn SA
Original Assignee
ICBT Roanne 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 ICBT Roanne SA filed Critical ICBT Roanne SA
Publication of EP0636720A1 publication Critical patent/EP0636720A1/de
Application granted granted Critical
Publication of EP0636720B1 publication Critical patent/EP0636720B1/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
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
    • 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
    • D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
    • D02J13/003—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass by contact with at least one stationary surface, e.g. a plate

Definitions

  • the present invention relates to an improvement made to devices for the heat treatment of moving wires, in particular the heat treatment of wires in order to give them certain shrinkage properties and / or bulkiness and / or elasticity.
  • Such an oven design also virtually eliminates the risk of vibration, which can cause irregularities in the production of son, and allows high production speeds while having a particularly compact heating assembly.
  • the new type of oven according to the invention for the heat treatment of a wire for example during a texturing stretching operation, is of the type constituted by an insulating enclosure which surrounds a heating block with which it defines a "channel" which can be opened to the outside, inside which passes the wire to be treated, means for guiding said wire being provided to ensure its positioning inside said oven, and in which subjects the moving wire to two successive treatments, one during which the temperature is higher than that of the normal temperature to which it must be brought, and for a period such that it is not damaged, the first phase being followed by an equilibrium treatment at a temperature bringing the wire to a conventional temperature, and it is characterized in that these successive phases are obtained by means of a heating block constituted by a cylindrical assembly comprising two heating zones, on either side of which are provided means for guiding the wire, zones obtained by means of two resistors embedded inside the cylindrical assembly, mounted in parallel, offset relative to each other over the length of the block, and each associated with a thermocouple element allowing precise regulation of said temperature.
  • the cylindrical block then comprising only, at least three elements for guiding the wire (rings), one at the inlet, one at the outlet and one on its central part.
  • the cylindrical block is designed to allow a combination of the two types of heat treatment by convection and conduction, and this in accordance with the teachings of European patent no. 524 111 in the name of the Applicant and includes a large diameter zone (sleeve) against which the wire is in contact, preferably along a helical path.
  • the cylindrical heating block is associated with two “sleeves" of the same diameter, preferably spaced from one another, the tangent wire, preferably helically with the surfaces of said sleeves, thus allowing to have an exchange thermal by contact (conduction) and separated from each other by an area where the wire is heated by radiation.
  • the resistors can directly transmit their calories to the blocks inside which they are mounted, it could be envisaged to carry out the heating, to have the resistors in a second enclosure comprising a DOWTERM liquid.
  • the heating block is constituted by a ceramic or stainless steel cylinder, the two electrical resistances being embedded inside this cylinder and being each associated with a thermocouple element, the electrical supply and the connections of the thermocouple elements being located on the same face.
  • an oven can be used to treat only one wire, it can also be designed so that two wires can be treated simultaneously, the separate holding of the two wires inside the oven being obtained either by means of suitable guiding elements, possibly by making grooves on the very surface of the "sleeve" of the zone or zones where the heat transmission is carried out by contact.
  • FIGS. 1 and 2 illustrate the structure of the heating block making it possible to produce the new type of oven in accordance with the invention, and which consists essentially of a cylindrical core, designated by the general reference (A) in a material which does not conduct heat, steel for example.
  • the temperature rise of this block (A) is obtained, in accordance with the invention, by means of two resistors (R1, R2), each associated with the thermocouple element TC1, TC2, mounted in parallel and positioned offset over the length of said block (B). These two resistors (R1, R2) make it possible to create two different temperature zones along the length of the block, thus offering the possibility of carrying out a "sequential" type heat treatment.
  • the two resistors (R1, R2) therefore make it possible to create over the length of the block (A) two zones (A, B) which may have different temperatures, the zone (A) corresponding to the resistance (R1) and the zone (B ) to resistance (R2).
  • Each resistor has a structure calculated so that the block is brought to high temperature in zone (A) (between 400 and 700 ° C), and to a low temperature, corresponding to the optimal temperature for processing a synthetic yarn (between 150 and 250 ° C) in zone B.
  • these resistors (R1 and R2) can either have a structure such that they dissipate power evenly over their entire length, or as shown in FIG. 1, be designed so that the resistance dissipates a variable power along its length, for example lower in the first part and stronger in the final phase.
  • a resistance (R1) of 600 watts designed to dissipate over its length R1 a power of 3.3 watts per square centimeter and a resistance R2 of 400 watts, designed to dissipate over its length on the one hand, a power of 1.2 watts per cm2 in a first zone and, on the other hand, a power of 2.4 watts per cm2 in its terminal zone, suitable for all applications.
  • thermocouple elements TC1, TC2 are arranged inside a duct, which extends over the entire length of the heating block (1). This therefore possibly makes it possible to carry out a verification of the temperature inside a thermocouple control element which is introduced through the free end of said conduits. It should also be noted that according to the preferred embodiment according to the invention, the electrical connections and the outputs of the thermocouple elements are located on the same face.
  • Such a type of heating block makes it possible to easily produce the ovens which can be adapted according to the wires to be treated, as shown by the concrete examples which follow, and in which the insulating enclosure which the ovens produced from such a block comprise heating, has not been shown for simplification purposes.
  • the block is associated with the wire guiding elements constituted by rings (2,3,4) positioned at the inlet, in the middle part and at the outlet of the oven. over the length of the zone B corresponding to the resistance R2, is arranged a cylindrical sleeve D made of ceramic or of surface-treated steel.
  • the guide elements (2,3,4) are designed so that in zone A, the wire F is kept spaced from the heating block (1) and is therefore heated by radiation, while in zone B, said wire (F ) tangents with the surface of the sleeve D, and is therefore then heated by contact, treatment therefore being carried out in a similar manner to the teachings of European patent 524 111, except that in zone A, a rise is obtained. temperature of the wire at a level close to its optimal treatment temperature followed, in zone B, by a stabilization phase at said optimal treatment temperature of the wire.
  • FIGS 5 and 6 illustrate another type of oven produced from a heating block according to the invention, comprising a second sleeve D1 disposed around the heating block, spaced along the length corresponding to the zone A of the resistance R1.
  • An oven is obtained in this way in which the temperature rise takes place by contact in the inlet zone D1 and not by convection as in the previous example, followed by a zone C, of length which can be variable for heating by radiation and a contact stabilization zone (zone B).
  • the guide rings (2,3,4) are positioned so that the wire (F) comes to tangent in a helix against the two surfaces D1, D, ensuring perfect contact and avoiding the phenomena of vibration.
  • each resistor R1, R2 placed inside an enclosure additional containing DOWTERM liquid.
  • Such a heating element design is more particularly suitable for producing ovens for texturing machines, in particular by false twisting, compact ovens making it possible to treat all types of synthetic yarns, such as polyamide, polyester, etc.
  • the two treatment zones A, B can have either identical lengths or different lengths.
  • the sections A, B can have respectively 350 mm and 450 mm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Control Of Resistance Heating (AREA)
  • Resistance Heating (AREA)
EP94420200A 1993-07-20 1994-07-12 Vorrichtung zur thermischen Behandlung von laufenden Garnen Expired - Lifetime EP0636720B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9309147 1993-07-20
FR9309147A FR2695655B1 (fr) 1993-07-20 1993-07-20 Dispositif pour le traitement thermique de fils en mouvement.

Publications (2)

Publication Number Publication Date
EP0636720A1 true EP0636720A1 (de) 1995-02-01
EP0636720B1 EP0636720B1 (de) 1999-09-08

Family

ID=9449608

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94420200A Expired - Lifetime EP0636720B1 (de) 1993-07-20 1994-07-12 Vorrichtung zur thermischen Behandlung von laufenden Garnen

Country Status (7)

Country Link
US (1) US5487224A (de)
EP (1) EP0636720B1 (de)
JP (1) JPH0748747A (de)
CN (1) CN1040239C (de)
DE (1) DE69420487T2 (de)
ES (1) ES2136185T3 (de)
FR (1) FR2695655B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1061711C (zh) * 1994-11-22 2001-02-07 Icbt·罗阿内公司 牵伸/假捻变形工艺及实施该工艺的新型烘箱

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2736938B1 (fr) * 1995-07-19 1997-08-14 Icbt Roanne Procede d'etirage-texturation par fausse torsion et nouveau type de four permettant sa mise en oeuvre
FR2727134B1 (fr) * 1994-11-22 1996-12-20 Icbt Roanne Dispositif de chauffage d'un fil en mouvement
CN102743931B (zh) 2007-02-02 2015-12-02 唐纳森公司 空气过滤介质包、过滤元件、空气过滤介质及方法
CN102438723B (zh) 2007-06-26 2015-12-16 唐纳森公司 过滤介质包，过滤元件和方法
MX355883B (es) 2008-07-25 2018-05-03 Donaldson Co Inc Medios de filtración plisados, paquetes de medios, elementos de filtro y métodos para filtrar fluidos.
EP2528675B2 (de) 2010-01-25 2021-12-22 Donaldson Company, Inc. Gefaltete filtriermedien mit konischen rillen
CN106555266B (zh) * 2015-03-30 2018-10-09 湖北鑫平纺织有限公司 纺织纱线膨松器对纺织纱线进行膨松化处理的方法
DE102019003801A1 (de) * 2019-05-28 2020-12-03 Oerlikon Textile Gmbh & Co. Kg Heizvorrichtung zum Erwärmen eines laufenden Fadens

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB987093A (en) * 1961-03-22 1965-03-24 Heath & Co Ltd G H Improvements in or relating to yarn heaters
GB1149720A (en) * 1966-06-06 1969-04-23 Heberlein & Co Ag Heat treatment of textile yarns
DE4018200A1 (de) * 1989-06-14 1991-02-07 Barmag Barmer Maschf Verfahren zum heizen eines fadens
EP0524111A1 (de) * 1991-07-18 1993-01-20 Icbt Roanne Vorrichtung zur thermischen Behandlung von laufenden Garnen

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2299239A (en) * 1937-09-07 1942-10-20 Ind Rayon Corp Apparatus for drying thread or the like
BE567120A (de) * 1957-04-25
US3063124A (en) * 1959-01-05 1962-11-13 Hilleary William Textile heating apparatus
GB890057A (en) * 1959-08-22 1962-02-21 Scragg & Sons Improvements in means for heating textile yarns
GB1135561A (en) * 1965-03-03 1968-12-04 Scragg & Sons Improvements in and relating to heaters for textile machines
US4753777A (en) * 1983-04-18 1988-06-28 Toho Beslon Co., Ltd. Apparatus for continuous production of carbon fibers
JPS6317381A (ja) * 1986-07-09 1988-01-25 東邦レーヨン株式会社 炭素化炉

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB987093A (en) * 1961-03-22 1965-03-24 Heath & Co Ltd G H Improvements in or relating to yarn heaters
GB1149720A (en) * 1966-06-06 1969-04-23 Heberlein & Co Ag Heat treatment of textile yarns
DE4018200A1 (de) * 1989-06-14 1991-02-07 Barmag Barmer Maschf Verfahren zum heizen eines fadens
EP0524111A1 (de) * 1991-07-18 1993-01-20 Icbt Roanne Vorrichtung zur thermischen Behandlung von laufenden Garnen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1061711C (zh) * 1994-11-22 2001-02-07 Icbt·罗阿内公司 牵伸/假捻变形工艺及实施该工艺的新型烘箱

Also Published As

Publication number Publication date
DE69420487T2 (de) 2000-01-20
FR2695655B1 (fr) 1995-03-03
ES2136185T3 (es) 1999-11-16
EP0636720B1 (de) 1999-09-08
CN1040239C (zh) 1998-10-14
US5487224A (en) 1996-01-30
DE69420487D1 (de) 1999-10-14
CN1117096A (zh) 1996-02-21
JPH0748747A (ja) 1995-02-21
FR2695655A1 (fr) 1994-03-18

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