WO2017005691A1 - Dispositif chauffant - Google Patents

Dispositif chauffant Download PDF

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Publication number
WO2017005691A1
WO2017005691A1 PCT/EP2016/065705 EP2016065705W WO2017005691A1 WO 2017005691 A1 WO2017005691 A1 WO 2017005691A1 EP 2016065705 W EP2016065705 W EP 2016065705W WO 2017005691 A1 WO2017005691 A1 WO 2017005691A1
Authority
WO
WIPO (PCT)
Prior art keywords
tubular body
thread
radiation
heating device
heating
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.)
Ceased
Application number
PCT/EP2016/065705
Other languages
German (de)
English (en)
Inventor
Philip JUNGBECKER
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.)
Oerlikon Textile GmbH and Co KG
Original Assignee
Oerlikon Textile GmbH and Co KG
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 Oerlikon Textile GmbH and Co KG filed Critical Oerlikon Textile GmbH and Co KG
Publication of WO2017005691A1 publication Critical patent/WO2017005691A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • D02J13/001—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass in a tube or vessel

Definitions

  • the invention relates to a heating device for at least one running thread according to the preamble of claim 1.
  • the threads receive a thermal treatment in order to plasticize the thermoplastic material of the thread.
  • Such heating of the thread is used in particular for stretching, for relaxation or for texturing.
  • the heating of the thread is carried out by heaters, which are integrated in a yarn path of the thread and perform the yarn material to the yarn thread a thermal energy.
  • the heat energy can be supplied directly to the thread via contact between the thread and a heating surface or without contact.
  • the heating of the thread with contact basically has the disadvantage that a contact friction is generated on the thread.
  • the invention therefore relates to the heating devices in which the thread is heated without contact.
  • a heating device in which in a box-shaped radiator, an elongated heating channel is formed, which has at its ends in each case a yarn inlet and a yarn outlet.
  • a halogen spotlight arranged in the central region of the heating channel.
  • the halogen walls facing the channel walls are designed with a reflective coating.
  • the internal arrangement of the halogen radiator results in a large radiation width with irregularly distributed reflection of the radiation. Therefore, the thread for heating within the heating channel back and forth several times laterally next to the halogen lamp.
  • heating devices are also known which direct a particularly highly concentrated radiation targeted to the yarn to be heated.
  • a heating device is known, which is formed by a laser emitter and an oscillating mirror reflector.
  • the radiation generated by the laser beam is directed by an oscillating mirror reflector on a running thread.
  • it is disadvantageous that a high accuracy in the alignment between the radiation and the threadline is to be observed in order to ensure an impingement of the radiation on the thread.
  • a further heating device is known, in which an elongated heating channel is formed in a tube whose outer jacket can be heated by electrical means. The thread is guided inside the tube.
  • Such heaters have the disadvantage that a considerable expenditure of energy is required to heat the wall of the tube. In that regard, such heaters have a relatively poor efficiency for heating the yarn. It is an object of the invention to develop a heating device for at least one running thread of the generic type such that a particularly energy-efficient contactless heating of the yarn with the lowest possible energy consumption is possible.
  • Another object of the invention is to provide a compact heating device available.
  • the heating channel is formed by a tubular body with a pipe seam and that the radiation source is integrated in the pipe seam of the tubular body.
  • the invention has the particular advantage that the radiation source generates a directed radiation into the interior of the tubular body. This can produce a predetermined by the pipe seam of the tubular body irradiation in the heating channel.
  • an inner wall of the tubular body has a surface which reflects the radiation. This allows the heating channel inside the tube body to be intensively irradiated.
  • the reflective surface may be formed by a coating on the inner wall or directly by a wall material of a tube wall of the Tube body are formed.
  • synthetic filament materials have a wavelength-dependent absorption behavior.
  • a radiation in a wavelength range of 8 to 9 ⁇ particularly suitable to be absorbed by a polyester to a high degree.
  • the development of the invention with a directed radiation is particularly suitable to obtain a rapid heating of the thread.
  • the radiation source is formed by at least one laser emitter, which generates the radiation with a substantially constant wavelength.
  • the radiation of the laser emitter can be adjusted to a desired wavelength in order to obtain intensive heating of the thread material.
  • the development of the invention is preferably carried out, in which the radiation source is formed by an infrared radiator which generates the radiation with a wavelength spectrum.
  • the heating of polymer materials in particular with radiations in the middle wavelength range of about 3 to 5 ⁇ m, can be carried out particularly effectively.
  • the development of the invention is provided in which the infrared radiator is designed as a tube radiator and over a total length of the Tubular body extends. Thus, the entire length of the tubular body can be used for irradiation and thus for heating the thread material.
  • the tubular body has open ends and in which the ends of an inlet yarn guide and a discharge yarn guide is assigned to a yarn path in height Span the center axis of the pipe body.
  • the thread can thus be guided contactless within the heating channel.
  • the Einlauffaden appreciation and the Auslauffadenizat can also be integrated respectively in a lid, which are assigned to the ends of the tubular body for closing the heating channel.
  • the heating device according to the invention is used in particular in texturing machines to heat a twisted yarn in a texturing zone.
  • the compact design makes it possible to realize very short texturing zones within one machine. In principle, two or more threads can be guided simultaneously through a heating channel.
  • Fig. 1 shows schematically a longitudinal sectional view of a first embodiment of the heating device according to the invention
  • FIG. 2 is a schematic cross-sectional view of the embodiment of FIG. 1.
  • FIG. 3 is a schematic plan view of the embodiment of FIG. 1;
  • FIG. 4 is a schematic longitudinal sectional view of another
  • FIG. 5 schematically shows a longitudinal sectional view of a further embodiment of the heating device according to the invention
  • FIG. 6 schematically shows a plan view of the embodiment from FIG. 5.
  • FIG. 7 schematically shows a top view of a further embodiment of the heating device according to the invention
  • a first embodiment of the heating device according to the invention for heating a running yarn is shown in several views.
  • Fig. 1 shows a longitudinal sectional view
  • Fig. 2 is a cross-sectional view
  • Fig. 3 schematically shows a plan view.
  • the heating device is formed by a cylindrical tubular body 2, which has a tube seam 3 on an upper side.
  • the pipe seam 3 runs parallel to the axis of the pipe body 2.
  • the pipe seam 3 forms an installation space for a radiation source 4.
  • the radiation source 4 is designed in this embodiment as an infrared radiator 4.1.
  • the infrared radiator 4.1 is arranged as a tube radiator along the pipe seam 3.
  • the tube radiator 4.1 extends over the entire length of the tubular body. 2
  • the tubular body 2 forms, with its tube wall 5, an inner wall 6 facing the tube radiator 4.1.
  • the inner wall 6 carries a coating 7 over the entire circumference, which forms a reflecting surface.
  • the inner wall 6 is assigned to the tube radiator 4.1 as a reflector.
  • the tubular body 2 has on both sides in each case an open end 14.1 and 14.2.
  • the open ends 14.1 and 14.2 are each an inlet yarn guide 8 and a discharge yarn guide 9 assigned.
  • the inlet yarn guide 8 and the outlet yarn guide 9 form a thread running plane, which is directed at the level of a central axis 10 of the tubular body 2. It should be expressly mentioned at this point that the inlet thread guides 8 or the outlet thread guide 9 can also be replaced directly by other means suitable for thread guidance, such as godets or rolls, depending on the process.
  • the tube radiator 4.1 is powered by an energy source, not shown, and controlled by a heater controller to produce radiation in a wavelength spectrum.
  • a carbon infrared radiator could be used to generate radiation with a wavelength spectrum of 3 to 5 ⁇ .
  • a running thread is introduced via the inlet yarn guide 8 in the heating channel 1 and passes through the heating channel 1 substantially in the central axis 10 of the tubular body 2.
  • the yarn path is fixed by the outlet yarn guide 9.
  • the inside of the Rohrköprers 2 by the Infrared radiator 4.1 generated radiation strikes directly on the thread.
  • the radiation impinging on the inner wall 6 outside of the thread is reflected by the coating 7 and returned to the interior of the heating channel 1.
  • the reflected radiation also leads to further heating of the thread.
  • Such a heater can thus be realized even at higher yarn speeds in short lengths.
  • heating of the thread at a yarn running speed of about 1,500 m / min. within a heating distance of 0.5 m possible.
  • FIG. 4 a further embodiment of the heating device according to the invention is shown schematically in a longitudinal sectional view in Fig. 4.
  • the embodiment of FIG. 4 is substantially identical to the embodiment of FIG. 1, so that only the differences will be explained at this point.
  • the tube body 2 on its inner wall 6 no coating.
  • the tube wall 5 of the tubular body 2 is formed of a metallic material, wherein the inner wall 6 is preferably carried out by a polishing as a reflective surface.
  • the infrared radiator 4.1 is integrated in the upper region of the tubular body 2 in the tube seam 3.
  • the tubular body 2 has at its ends 14.1 and 14.2 each have a cover 1 1.1 and 1.2 on.
  • an inlet yarn guide 8 is integrated, which is embedded in an inlet opening 12.
  • an outlet opening 13 is provided in the lid, in which a discharge yarn guide 9 is integrated.
  • FIGS. 1 to 4 an infrared radiator was used as the radiation source.
  • the radiation source In principle, it is also possible to form the radiation source by a laser emitter.
  • FIGS. 5 and 6 Another embodiment of the device according to the invention is shown in FIGS. 5 and 6.
  • Fig. 5 shows schematically a longitudinal sectional view
  • Fig. 6 is a plan view of the embodiment.
  • FIGS. 5 and 6 is also formed by a tubular body 2, which has a heating channel 1 in the interior.
  • the tubular body 2 has on its upper side a tube seam 3, in which a radiation source 4 in the form of a laser emitter 4.2 is integrated.
  • the laser emitter 4.2 is directed into the interior of the heating channel 1.
  • the tubular body 2 has a tube wall 5 with an inner wall 6.
  • the inner wall 6 carries a coating 7 which forms a surface reflecting the radiation.
  • the tubular body 2 has open ends 14.1 and 14.2, which are associated with a Einlauffaden researching 8 and a discharge yarn guide 9 opposite.
  • the function of the embodiment shown in Fig. 5 and 6 is identical to the aforementioned embodiments, so that no further explanation takes place.
  • the use of a laser emitter 4.2 has the particular advantage that a radiation with a substantially constant wavelength can be generated.
  • the wavelength of the radiation is preferably tuned to the respective thread material. It is known, for example, that polyester strongly absorbs radiation having a wavelength of 8 ⁇ m.
  • FIG. 7 shows an exemplary embodiment of a heating device according to the invention with a plurality of radiation sources.
  • Fig. 7 shows a plan view of the embodiment, which is otherwise identical to the aforementioned embodiment of FIGS. 5 and 6 executed.
  • a plurality of radiation sources 4 are arranged in the thread running direction one behind the other in a pipe seam 3 of a tubular body 2, which forms a heating channel 1.
  • the radiation sources 4 are also designed as laser emitters 4.2 in this embodiment.
  • the heating device according to the invention is characterized in that in the heating channel specifically only the thread mass has to be heated. Essentially no soiling occurs because the thread is guided without contact through the heating channel. In that regard, low energy consumption can be realized.
  • a radiation whose wavelength is matched to the thread material, also leads to an improved introduction of heat energy in the thread.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

L'invention concerne un dispositif chauffant destin à au moins un fil défilant. Le dispositif chauffant présente un canal chauffant allongé et une source de rayonnement affectée au canal chauffant et destinée à la génération d'un rayonnement dirigé sur le fil. Le fil est guidé sensiblement sans contact dans le canal chauffant. Afin d'obtenir une introduction d'énergie dans le matériau du fil la plus efficace possible, l'invention propose que le canal chauffant soit formé par un corps tubulaire pourvu d'une soudure de tuyau et que la source de rayonnement soit intégrée à la soudure de tuyau du corps tubulaire.
PCT/EP2016/065705 2015-07-07 2016-07-04 Dispositif chauffant Ceased WO2017005691A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015008711.8A DE102015008711A1 (de) 2015-07-07 2015-07-07 Heizvorrichtung
DE102015008711.8 2015-07-07

Publications (1)

Publication Number Publication Date
WO2017005691A1 true WO2017005691A1 (fr) 2017-01-12

Family

ID=56321960

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/065705 Ceased WO2017005691A1 (fr) 2015-07-07 2016-07-04 Dispositif chauffant

Country Status (2)

Country Link
DE (1) DE102015008711A1 (fr)
WO (1) WO2017005691A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3409958A (en) * 1965-08-26 1968-11-12 Zinser Textilmaschinen Gmbh Apparatus for stretching and shrinking yarns
DE4113945A1 (de) * 1991-04-29 1992-11-05 Zinser Textilmaschinen Gmbh Vorrichtung zur waermebehandlung von strangfoermigem material, insbesondere von synthetischen faeden
DE102010027340A1 (de) * 2009-07-29 2011-02-03 Wolfgang Erdmann Vorrichtung zur Erwärmung eines Fadens, einer Fadenschar oder eines Bandes auf eine bestimmte Endtemperatur
EP2589909A2 (fr) * 2011-11-04 2013-05-08 Mehler Engineering & Service GmbH Dispositif de chauffage ou de séchage de matériaux allongés

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2259028A1 (de) 1972-11-28 1974-06-12 Berliner Maschinenbau Ag Vorm Vorrichtung zur thermischen behandlung von aus synthetischen fasern bestehenden oder solche tragenden garnen
DE3431747A1 (de) 1984-08-29 1986-05-15 Siemens AG, 1000 Berlin und 8000 München Einrichtung zur erwaermung von durchlaufenden chemiefaserfaeden auf verstrecktemperatur
CH700754B1 (de) 2009-04-09 2013-09-13 Consorzio Bertotto Meyer C O Texma Org Ag Vorrichtung zum Aufheizen eines durchlaufenden Fadens.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3409958A (en) * 1965-08-26 1968-11-12 Zinser Textilmaschinen Gmbh Apparatus for stretching and shrinking yarns
DE4113945A1 (de) * 1991-04-29 1992-11-05 Zinser Textilmaschinen Gmbh Vorrichtung zur waermebehandlung von strangfoermigem material, insbesondere von synthetischen faeden
DE102010027340A1 (de) * 2009-07-29 2011-02-03 Wolfgang Erdmann Vorrichtung zur Erwärmung eines Fadens, einer Fadenschar oder eines Bandes auf eine bestimmte Endtemperatur
EP2589909A2 (fr) * 2011-11-04 2013-05-08 Mehler Engineering & Service GmbH Dispositif de chauffage ou de séchage de matériaux allongés

Also Published As

Publication number Publication date
DE102015008711A1 (de) 2017-01-12

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