EP0796934A1 - Rouleau pour chauffer des fils synthétiques - Google Patents

Rouleau pour chauffer des fils synthétiques Download PDF

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Publication number
EP0796934A1
EP0796934A1 EP97101768A EP97101768A EP0796934A1 EP 0796934 A1 EP0796934 A1 EP 0796934A1 EP 97101768 A EP97101768 A EP 97101768A EP 97101768 A EP97101768 A EP 97101768A EP 0796934 A1 EP0796934 A1 EP 0796934A1
Authority
EP
European Patent Office
Prior art keywords
godet
heated
jacket
infrared
heat
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
EP97101768A
Other languages
German (de)
English (en)
Other versions
EP0796934B1 (fr
Inventor
Matthias Bührer
Heinz Von Arx
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.)
Retech AG
Oerlikon Textile GmbH and Co KG
Original Assignee
Retech AG
Zinser Textilmaschinen GmbH
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 Retech AG, Zinser Textilmaschinen GmbH filed Critical Retech AG
Publication of EP0796934A1 publication Critical patent/EP0796934A1/fr
Application granted granted Critical
Publication of EP0796934B1 publication Critical patent/EP0796934B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/14—Tools, e.g. nozzles, rollers, calenders
    • H05B6/145—Heated rollers
    • 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
    • D02J13/005—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 rotating roll

Definitions

  • the invention relates to a heated godet for heating synthetic threads.
  • godets of the type mentioned by means of heated liquid or gaseous, optionally evaporated media Heating by means of electrical resistance heaters is also known.
  • the godets are heated by induction heating, in which AC-fed primary winding is arranged in the interior of the godet, which generates heat in the jacket of the godet made of magnetostrictive material such as steel or copper by induced eddy current formation.
  • induction heating in which AC-fed primary winding is arranged in the interior of the godet, which generates heat in the jacket of the godet made of magnetostrictive material such as steel or copper by induced eddy current formation.
  • the technical outlay for such inductive heating is very high, in particular in the case of godets with a large diameter of, for example, 300 mm and a large overall length of, for example, 500 mm. Energy consumption is also very high due to the high power losses associated with this type of heating.
  • the object of the invention was therefore to provide a solution for heating, in particular, large godets, which is simpler both in terms of its structure and more modest in terms of its energy consumption. It solves this problem by the features specified in the characterizing part of the main claim.
  • the infrared radiation heaters proposed according to the invention have the advantage that they act directly on the jacket of the godet with radiation whose wavelength has its maximum, depending on the design, between approximately 1 ⁇ m and 2.5 ⁇ m. This wavelength is converted into heat with little loss in the metallic jacket of the godet.
  • Such infrared radiant heaters are offered, for example, by Heraeus. So far they have been used - also in the field of textiles - for the direct contactless heating of organic material in the form of one-dimensional (threads) or two-dimensional (foils, fabrics, nonwovens, etc.) products that pass the infrared radiation heater at a uniform distance.
  • Another application is the direct, contactless heating of three-dimensional objects (for example, baking paint) that have different distances from the infrared radiant heater. In both cases, contactless heat transfer by radiation is an essential requirement.
  • the invention has recognized that the indirect transfer of the thermal energy by means of the radiation from infrared radiant heaters is also advantageous when heating inductively heatable heat carriers which move at a constant distance in front of the radiant heaters and which ultimately use convection to heat them transferring heating objects. It has been shown that energy loss due to scattered radiation is very low, especially if the radiant heaters are provided with a reflective coating on their side facing away from the surface to be heated.
  • a shaft 4 of a godet 5 is rotatably mounted by means of two roller bearings 3. At its broken end, the shaft 4 is driven in a manner known per se, for example by means of an electric motor.
  • the hub 6 of the godet 5 is fastened on the free end of the shaft 4 by means of a conical seat 7 and a screw 8 which is only indicated.
  • IR infrared
  • the infrared radiation heaters 11 are so long that their radiating region 15 extends over the entire inner length of the godet 5 and accordingly heat the godet uniformly over its entire length.
  • twelve IR radiation heaters 11 are arranged equidistant from the axis of rotation of the godet 5 and preferably also to one another on an imaginary cylindrical surface which is coaxial with the axis of rotation of the godet 5.
  • a larger or smaller number of the same can also be used.
  • At least one temperature sensor 16 is also arranged, which forms a measurement signal of the temperature of the jacket 14 of the godet and in a known manner not shown here, for example by means of contactless Transmission elements, forwarded to a temperature control device.
  • the heat requirement of the godet 5 is usually not uniform over its length, be it that the radiation in the edge regions is greater than in the central region, or that there is a greater heat requirement in the inlet region of the treated threads than in Drain area.
  • At least some of the infrared radiation heaters can be designed to radiate over the entire length of the godet 5 and thus provide the basic load for the heating, while the infrared radiation heaters 12, 12 ', 12' 'which only radiate over part of the length of the godet meet the respective additional requirements in the individual zones 17, 17 ', 17' '.
  • IR radiation heaters 12, 12 ', 12' 'each heat only part of the length of the godet 5 a larger number of IR radiation heaters is generally required, in particular in this embodiment. However, since the number of IR radiation heaters that can be used is limited for reasons of space, IR radiation heaters of greater radiation density per unit length are also preferably used here. Since only zones 17, 17 ', 17' 'of the length of the godet are heated here by groups of IR radiant heaters, each of these zones is assigned at least one separate temperature sensor 16, 16' and (not visible) 16 ''.
  • the zone-wise supply and control of the heating power is not only advantageous if the heating is uniform Galette is aimed for over its entire length. Rather, it is also expedient if, for example, different zones along the length of the godet 5 are to have different temperatures.
  • the infrared radiation heaters 11, 12, 12 ', 12' ' heat the jacket 14 of the godet 5 from the inside to the desired temperature of, for example, 250 ° C.
  • the actual measured values given by the temperature sensors 16, 16 ', 16' ' are compared in a temperature control device with a predetermined setpoint value and, in the event of deviations, the duty cycle or the Supply voltage of the infrared radiation heater 11, 12, 12 ', 12' 'controlled so that the required temperature of the jacket 14 of the godet 5 is reached and maintained.
  • the IR radiation heaters 11, 12, 12 ', 12' ' can be designed as simple quartz glass tubes in which the wire coil of the electrical resistance heater is arranged.
  • the double IR radiation heaters shown in FIG. 4 are advantageously used. As can be seen from the figure, these IR radiation heaters have in cross section approximately 8-shaped tubes 10 'made of quartz glass, in which two wire coils 19 are arranged.
  • a typical configuration of a godet with the above-mentioned dimensions consists, for example, of six heating elements with 750 W each, which heat the rear zone 17 '', six heating elements with 1000 W each, which heat the central zone 17 'and 4 heating elements with 600 each W, which heat the front zone 17.
  • the infrared radiation heaters 11, 12, 12 ', 12'' are coated on one side with a reflective coating 20, for example made of evaporated metal such as gold, which directs the radiation in the direction of the jacket 14 of the godet 5 bundles. This avoids useless scatter radiation against the shaft 4 of the godet 5 and reduces the energy consumption.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Resistance Heating (AREA)
  • Forwarding And Storing Of Filamentary Material (AREA)
  • Control Of Resistance Heating (AREA)
EP97101768A 1996-03-19 1997-02-05 Rouleau pour chauffer des fils synthétiques Expired - Lifetime EP0796934B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19610763 1996-03-19
DE19610763A DE19610763A1 (de) 1996-03-19 1996-03-19 Beheizte Galette zum Erwärmen synthetischer Fäden

Publications (2)

Publication Number Publication Date
EP0796934A1 true EP0796934A1 (fr) 1997-09-24
EP0796934B1 EP0796934B1 (fr) 2001-07-11

Family

ID=7788741

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97101768A Expired - Lifetime EP0796934B1 (fr) 1996-03-19 1997-02-05 Rouleau pour chauffer des fils synthétiques

Country Status (4)

Country Link
US (1) US5902503A (fr)
EP (1) EP0796934B1 (fr)
JP (1) JPH107319A (fr)
DE (2) DE19610763A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0935016A1 (fr) * 1998-02-04 1999-08-11 ARTEVA TECHNOLOGIES S.à.r.l. Dispositif de calendrage et méthode de chauffage pour fil multifilamentaire
CN105908318A (zh) * 2015-02-19 2016-08-31 里特电子有限公司 具有用于加热的感应线圈布置结构的导丝辊单元

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19757474A1 (de) * 1997-12-23 1999-06-24 Voith Sulzer Papiertech Patent Papierkalander
DE102007023723A1 (de) * 2007-05-22 2008-11-27 Oerlikon Textile Gmbh & Co. Kg Vorrichtung zum Abziehen und Verstrecken multifiler Fäden
CN103334162B (zh) * 2013-06-24 2015-11-04 浙江理工大学 用于短流程缫丝的丝条预干燥装置及预干燥方法
WO2015053727A1 (fr) * 2013-10-11 2015-04-16 Kordsa Global Endustriyel Iplik Ve Kord Bezi Sanayi Ve Ticaret Anonim Sirketi Rouleau d'étirage de fil

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1089529A (en) * 1965-07-27 1967-11-01 Pyrotel Corp Process-heating control system
US4443689A (en) * 1981-06-15 1984-04-17 Rieter Machine Works, Ltd. Heatable godet and a method of heating a godet
GB2216457A (en) * 1988-03-02 1989-10-11 Du Pont Apparatus for heating yarn
EP0622972A2 (fr) * 1993-04-29 1994-11-02 NEUMAG - Neumünstersche Maschinen- und Anlagenbau GmbH Procédé de chauffage par induction d'un rouleau et rouleau chauffé par induction
US5362945A (en) * 1991-04-27 1994-11-08 Barmag Ag Godet for heating an advancing yarn
JPH0764426A (ja) * 1993-08-23 1995-03-10 Fuji Xerox Co Ltd 画像出力装置の定着装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3382555A (en) * 1965-10-27 1968-05-14 Du Pont Yarn heater
US3943222A (en) * 1969-06-27 1976-03-09 Ernest Scragg & Sons Limited Manufacturing textile yarns
US3562472A (en) * 1969-08-20 1971-02-09 Gen Electric Induction heater for rotating godet
US3576081A (en) * 1969-12-17 1971-04-27 William G Mccrary Combination strand-drying and bearing-lubrication apparatus
US4097723A (en) * 1971-06-09 1978-06-27 Leitner Frank W Thermal systems incorporating apparatus and methods for simulating time related temperatures
US3843868A (en) * 1971-06-18 1974-10-22 Carding Spec Co Yarn heaters
US4658716A (en) * 1985-04-12 1987-04-21 Measurex Corporation Infrared heating calender roll controller
EP0663027B1 (fr) * 1992-10-01 1997-11-26 B a r m a g AG Galette de guidage et de transport de fil
US5497562A (en) * 1995-03-03 1996-03-12 Hosokawa Bepex Corporation Radiant heater system for solid phase crystallization and polymerization of polymers

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1089529A (en) * 1965-07-27 1967-11-01 Pyrotel Corp Process-heating control system
US4443689A (en) * 1981-06-15 1984-04-17 Rieter Machine Works, Ltd. Heatable godet and a method of heating a godet
GB2216457A (en) * 1988-03-02 1989-10-11 Du Pont Apparatus for heating yarn
US5362945A (en) * 1991-04-27 1994-11-08 Barmag Ag Godet for heating an advancing yarn
EP0622972A2 (fr) * 1993-04-29 1994-11-02 NEUMAG - Neumünstersche Maschinen- und Anlagenbau GmbH Procédé de chauffage par induction d'un rouleau et rouleau chauffé par induction
JPH0764426A (ja) * 1993-08-23 1995-03-10 Fuji Xerox Co Ltd 画像出力装置の定着装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 095, no. 006 31 July 1995 (1995-07-31) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0935016A1 (fr) * 1998-02-04 1999-08-11 ARTEVA TECHNOLOGIES S.à.r.l. Dispositif de calendrage et méthode de chauffage pour fil multifilamentaire
CN105908318A (zh) * 2015-02-19 2016-08-31 里特电子有限公司 具有用于加热的感应线圈布置结构的导丝辊单元

Also Published As

Publication number Publication date
JPH107319A (ja) 1998-01-13
DE59703986D1 (de) 2001-08-16
US5902503A (en) 1999-05-11
EP0796934B1 (fr) 2001-07-11
DE19610763A1 (de) 1997-09-25

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