EP0636720B1 - Dispositif pour le traitement thermique de fils en mouvement - Google Patents
Dispositif pour le traitement thermique de fils en mouvement Download PDFInfo
- Publication number
- EP0636720B1 EP0636720B1 EP94420200A EP94420200A EP0636720B1 EP 0636720 B1 EP0636720 B1 EP 0636720B1 EP 94420200 A EP94420200 A EP 94420200A EP 94420200 A EP94420200 A EP 94420200A EP 0636720 B1 EP0636720 B1 EP 0636720B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- yarn
- zones
- zone
- temperature
- contact
- 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
Links
- 238000010438 heat treatment Methods 0.000 claims description 41
- 238000011282 treatment Methods 0.000 claims description 13
- 230000005855 radiation Effects 0.000 claims description 12
- 239000000919 ceramic Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011369 optimal treatment Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
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 threads in order to give them certain shrinkage properties and / or bulk and / or elasticity, this device being known from document DE-A-4 018 200.
- 1,204,634 (corresponding to US Patent 3,015,872) in which is carried out inside the same oven, two treatments successive, one during which the wire is subjected to a temperature considerably higher than that of the normal temperature at which it must be worn, and for such a period that it is not damaged, this first phase being followed by treatment of equilibrium at a temperature bringing the wire to a temperature conventional.
- a new type of oven with a particularly simple design which only allows to carry out such heat treatments "sequential", but also offers the distinction of being able to be easily adapted for, depending on the treatments to be performed and the nature of the wires to be treated, have successive zones in which the heat transmission to the wires can be achieved by combining on its length of zones implementing the different exchange principles thermal, and more particularly successive zones where the heat is transmitted by radiation or conduction.
- two heating zones are therefore obtained. separate, one may be at a high temperature, the other at a temperature lower, thus allowing a rapid rise in temperature of the wire to a level close to its optimal treatment temperature, followed by a phase of stabilization at said optimum wire processing temperature.
- the cylindrical heating block is associated with two sleeves of the same diameter, spaced from each other, the tangent wire, preferably helically with the surfaces of said sleeves, thus allowing to have a heat exchange by contact (coating) and separated from each other by an area where the wire is heated by radiation.
- the resistors can directly transmit their calories to blocks inside which they are mounted, it could be considered, for heat, place the resistors in a second enclosure containing a liquid "DOWTERM.”
- the heating block consists of a cylinder in ceramic or stainless steel, the two electrical resistances being embedded in the interior of this cylinder and each being associated with a thermocouple element, the power supply and the connections of the thermocouple elements being located on the same side.
- such an oven can be used to treat only one wire, it can also be designed so that it can process simultaneously two wires, keeping the two wires separate inside the furnace being obtained either by means of suitable guide elements or possibly by making grooves on the very surface of the "sleeve" of the zone (s) where the heat transmission is carried out by contact.
- FIGS 1 and 2 illustrate the structure of the heating block allowing to produce the new type of oven according to the invention, which is essentially consisting of a cylindrical core, designated by the general reference (A) made of a material which does not conduct heat, steel for example.
- This block (A) is brought to temperature, according to the invention, via 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).
- R1, R2 resistors
- These two resistors (R1, R2) create over the length of the block two different temperature zones, thus offering the possibility of perform a "sequential" type heat treatment.
- the two resistors (R1, R2) therefore make it possible to create on the block length (A) two zones (A, B) that can have temperatures different, the zone (A) corresponding to the resistance (R1) and the zone (B) to resistance (R2).
- Each resistance has a structure calculated so that the block is brought to high temperature in zone (A) (between 400 and 700 ° C), and at a low temperature, corresponding to the optimal temperature of treatment of a synthetic yarn (between 150 and 250 ° C) in zone B.
- 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 cm 2 in a first zone and, on the other hand, a power of 2.4 watts per cm 2 in its terminal zone, suitable for all applications.
- thermocouples TC1, TC2 are arranged inside a conduit, which extends over the entire length of the heating block (1). This therefore allows optionally perform a temperature check at inside a thermocouple control element that we introduce by 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 side.
- Such a type of heating block makes it easy to make ovens can be adapted according to the son to be treated, as shown by concrete examples which follow, and in which the insulating enclosure that include ovens made from such a heating block, has not been shown for simplification.
- 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 on the length of zone B corresponding to resistance R2, is arranged a cylindrical sleeve D in ceramic or treated steel superficially.
- 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 either therefore heated by radiation, whereas in zone B, said wire (F) comes tangent with the surface of the sleeve D, and is therefore then heated by contact, treatment therefore taking place in a similar way to lessons from European patent 524 111, if only in zone A, a temperature rise of the wire is obtained at a level close to its optimal treatment temperature followed, in zone B, by a phase of stabilization at said optimum wire processing temperature.
- FIGS 5 and 6 illustrate another type of oven made from a heating block according to the invention, comprising a second sleeve D1 arranged around the heating block, spaced lengthwise corresponding to zone A of resistance R1.
- a furnace in which the temperature rise is made by contact in the entry area D1 and not by convection as in the example preceding, followed by a zone C, of length which can be variable from radiant heating and a contact stabilization zone (zone B).
- the rings of guide (2,3,4) are positioned so that the wire (F) comes tangent in a helix against the two surfaces D1, D, ensuring contact perfect and avoiding the phenomena of vibration.
- wire guide in the oven is produced by means of rings, it could be envisaged to use other means, for example as shown in Figure 7, of make helical grooves deep into the very surface of sleeves which are attached around the actual heating block.
- both treatment zones A, B can have either identical lengths or different lengths.
- sections A, B can have 350 mm and 450 mm respectively.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Resistance Heating (AREA)
- Control Of Resistance Heating (AREA)
Description
- ces phases successives sont obtenues par l'intermédiaire d'un bloc chauffant constitué par un ensemble cylindrique comprenant deux zones de chauffe, de part et d'autre desquelles sont prévus des moyens de guidage pour le fil, zones obtenues par l'intermédiaire de deux résistances noyées à l'intérieur de l'ensemble cylindrique, montées en parallèle, décalées l'une par rapport à l'autre sur la longueur du bloc, et associées chacune à un élément thermocouple permettant une régulation précise de ladite température ;
- le bloc chauffant comporte sur sa longueur au moins une zone de grand diamètre constituée par un manchon contre la surface duquel le fil tangente, permettant d'avoir un chauffage par contact précédé et/ou suivi d'une zone où le fil est chauffé par radiation.
- les figures 1, 2 sont des vues schématiques, respectivement en élévation et en coupe, et vu de côté d'un bloc chauffant réalisé conformément à l'invention et permettant d'obtenir deux zones de température successives sur la longueur du four proprement dit;
- les figures 3 et 4 sont respectivement des vues en perspective et en élévation d'un bloc chauffant conforme à l'invention, utilisé pour réaliser un four tel que décrit dans le brevet européen 0 524 111 du Demandeur ;
- les figures 5 et 6 illustrent également en perspective et en élévation une autre forme de réalisation d'un four au moyen d'un bloc conforme à l'invention et dans lequel le traitement thermique s'effectue par deux zones de contact séparées l'une de l'autre par une zone par radiation ;
- la figure 7 illustre une variante d'un four comportant deux zones de chauffage par contact séparées l'une de l'autre par une zone de radiation, permettant de traiter simultanément deux fils et de les guider automatiquement sans adjonction d'éléments de guidage additionnels sur la longueur dudit four;
- la figure 8 illustre une variante de la manière dont est réalisé le chauffage.
Claims (5)
- Dispositif pour le traitement thermique d'un fil en mouvement, par exemple lors d'une opération d'étirage texturation, du type constitué par une enceinte isolante qui entoure un bloc chauffant avec lequel elle définit un «canal» pouvant être ouvert sur l'extérieur, à l'intérieur duquel passe le fil à traiter, des moyens de guidage dudit fil étant prévus pour assurer son positionnement à l'intérieur dudit four, et dans lequel on soumet le fil en mouvement à deux traitements successifs, l'un pendant lequel la température est supérieure à celle de la température normale à laquelle il doit être porté, et ce pendant une durée telle qu'il ne soit pas endommagé, la première phase étant suivie d'un traitement d'équilibre à une température portant le fil à une température conventionnelle,
ces phases successives sont obtenues par l'intermédiaire d'un bloc chauffant (1) constitué par un ensemble cylindrique comprenant deux zones de chauffe (A,B), de part et d'autre desquelles sont prévus des moyens de guidage pour le fil, zones obtenues par l'intermédiaire de deux résistances (R1,R2) noyées à l'intérieur de l'ensemble cylindrique, montées en parallèle, décalées l'une par rapport à l'autre sur la longueur du bloc, et associées chacune à un élément thermocouple (TC1, TC2) permettant une régulation précise de ladite température ;
caractérisée en ce que
le bloc chauffant comporte sur sa longueur au moins une zone de grand diamètre constituée par un manchon contre la surface duquel le fil tangente, permettant d'avoir un chauffage par contact précédé et/ou suivi d'une zone où le fil est chauffé par radiation. - Dispositif selon la revendication 1, caractérisé en ce que le bloc chauffant cylindrique est associé à deux manchons D, D1 de même diamètre, espacés l'un de l'autre, permettant donc d'avoir deux zones d'échange thermique par contact espacées l'une de l'autre par une zone où le fil est chauffé par radiation.
- Dispositif selon l'une des revendications 1 et 2, caractérisé en ce que le bloc chauffant cylindrique est constitué par un cylindre C en céramique ou en acier inoxydable, les deux résistances électriques R1,R2 étant noyées à l'intérieur de ce cylindre et étant associées chacune à l'élément thermocouple, l'alimentation électrique et les branchements des éléments thermocouple étant situés sur une même face.
- Dispositif selon l'une des revendications 1 à 3, caractérisé en ce qu'il est conçu de manière à pouvoir traiter simultanément deux fils (F), le maintien séparé des deux fils à l'intérieur du four étant obtenu soit au moyen d'éléments de guidage appropriés, soit éventuellement réalisé dans des gorges à la surface même du ou des « manchon » de la ou des zones où la transmission calorifique est réalisée par contact.
- Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que le fil est en contact avec la (ou les) zone(s) de grand diamètre selon un trajet en hélice.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9309147A FR2695655B1 (fr) | 1993-07-20 | 1993-07-20 | Dispositif pour le traitement thermique de fils en mouvement. |
FR9309147 | 1993-07-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0636720A1 EP0636720A1 (fr) | 1995-02-01 |
EP0636720B1 true EP0636720B1 (fr) | 1999-09-08 |
Family
ID=9449608
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94420200A Expired - Lifetime EP0636720B1 (fr) | 1993-07-20 | 1994-07-12 | Dispositif pour le traitement thermique de fils en mouvement |
Country Status (7)
Country | Link |
---|---|
US (1) | US5487224A (fr) |
EP (1) | EP0636720B1 (fr) |
JP (1) | JPH0748747A (fr) |
CN (1) | CN1040239C (fr) |
DE (1) | DE69420487T2 (fr) |
ES (1) | ES2136185T3 (fr) |
FR (1) | FR2695655B1 (fr) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2727134B1 (fr) * | 1994-11-22 | 1996-12-20 | Icbt Roanne | Dispositif de chauffage d'un fil en mouvement |
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 |
EP0802993B1 (fr) * | 1994-11-22 | 1999-07-21 | Icbt Yarn | Procede d'etirage-texturation par fausse torsion et four permettant sa mise en oeuvre |
US7959702B2 (en) | 2007-02-02 | 2011-06-14 | Donaldson Company, Inc. | Air filtration media pack, filter element, air filtration media, and methods |
JP2010531731A (ja) | 2007-06-26 | 2010-09-30 | ドナルドソン カンパニー,インコーポレイティド | ろ過用媒体パック、フィルタエレメント、および方法 |
AU2009273893A1 (en) | 2008-07-25 | 2010-01-28 | Donaldson Company, Inc. | Pleated filtration media pack comprising flutes |
MX2012008542A (es) | 2010-01-25 | 2012-11-12 | Donaldson Co Inc | Medios de filtracion plisados con estrias conicas. |
CN106498591B (zh) * | 2015-03-30 | 2018-07-06 | 襄樊富仕纺织服饰有限公司 | 一种纺织纱线膨松器的工作方法 |
DE102019003801A1 (de) * | 2019-05-28 | 2020-12-03 | Oerlikon Textile Gmbh & Co. Kg | Heizvorrichtung zum Erwärmen eines laufenden Fadens |
Family Cites Families (11)
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 (fr) * | 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 |
GB987093A (en) * | 1961-03-22 | 1965-03-24 | Heath & Co Ltd G H | Improvements in or relating to yarn heaters |
GB1135561A (en) * | 1965-03-03 | 1968-12-04 | Scragg & Sons | Improvements in and relating to heaters for textile machines |
GB1149720A (en) * | 1966-06-06 | 1969-04-23 | Heberlein & Co Ag | Heat treatment of textile yarns |
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 |
DE4018200C2 (de) * | 1989-06-14 | 1996-06-05 | Barmag Barmer Maschf | Verfahren und Vorrichtung zum Heizen eines Fadens in der Falschzwirnzone einer Falschzwirntexturiermaschine |
DE69200684T2 (de) * | 1991-07-18 | 1995-03-16 | Icbt Roanne | Vorrichtung zur thermischen Behandlung von laufenden Garnen. |
-
1993
- 1993-07-20 FR FR9309147A patent/FR2695655B1/fr not_active Expired - Fee Related
-
1994
- 1994-07-05 JP JP6153862A patent/JPH0748747A/ja active Pending
- 1994-07-11 US US08/273,111 patent/US5487224A/en not_active Expired - Fee Related
- 1994-07-12 DE DE69420487T patent/DE69420487T2/de not_active Expired - Fee Related
- 1994-07-12 ES ES94420200T patent/ES2136185T3/es not_active Expired - Lifetime
- 1994-07-12 EP EP94420200A patent/EP0636720B1/fr not_active Expired - Lifetime
- 1994-07-19 CN CN94108056A patent/CN1040239C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH0748747A (ja) | 1995-02-21 |
US5487224A (en) | 1996-01-30 |
EP0636720A1 (fr) | 1995-02-01 |
FR2695655B1 (fr) | 1995-03-03 |
CN1117096A (zh) | 1996-02-21 |
FR2695655A1 (fr) | 1994-03-18 |
ES2136185T3 (es) | 1999-11-16 |
DE69420487T2 (de) | 2000-01-20 |
DE69420487D1 (de) | 1999-10-14 |
CN1040239C (zh) | 1998-10-14 |
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