EP0691429B1 - Heizschiene zur Erwärmung eines laufenden synthetischen Fadens - Google Patents

Heizschiene zur Erwärmung eines laufenden synthetischen Fadens Download PDF

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Publication number
EP0691429B1
EP0691429B1 EP95107629A EP95107629A EP0691429B1 EP 0691429 B1 EP0691429 B1 EP 0691429B1 EP 95107629 A EP95107629 A EP 95107629A EP 95107629 A EP95107629 A EP 95107629A EP 0691429 B1 EP0691429 B1 EP 0691429B1
Authority
EP
European Patent Office
Prior art keywords
heating
yarn
rail
heating rail
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
Application number
EP95107629A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0691429A3 (de
EP0691429A2 (de
Inventor
Martin Fischer
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 Barmag AG
Original Assignee
Barmag AG
Barmag Barmer Maschinenfabrik 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 Barmag AG, Barmag Barmer Maschinenfabrik AG filed Critical Barmag AG
Publication of EP0691429A2 publication Critical patent/EP0691429A2/de
Publication of EP0691429A3 publication Critical patent/EP0691429A3/de
Application granted granted Critical
Publication of EP0691429B1 publication Critical patent/EP0691429B1/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
    • 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
    • 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 rail for heating a running synthetic thread according to the preamble of claim 1.
  • This heating rail is known from EP 04 06 673-A2 (EP-1725).
  • GB-A-1 126 624 is a heating rail for heating a known synthetic thread.
  • the thread becomes zigzag in the heating rail.
  • the thread is guided in a groove that one has a zigzag shape.
  • the object of the invention is to overcome the disadvantage of belt friction, which is connected to each curved heating rail, as far as possible to eliminate, so that the wrap friction is practically negligible is.
  • the curvature of the heating rail can be very small, i.e. the radius of curvature be chosen very large. In any case, it is> 10 m. It however, there are no concerns, and it is preferred that the Heating rail is straight in the direction of the thread.
  • EP 04 12 429-A2 (Bag. 1720) is a false twist crimping machine known in which the thread along a heating rail - without to touch them - is brought into contact with thread guides that the Thread in a plane that is parallel to the heating rail and one Has a distance from the heating rail in a zigzag thread run to lead.
  • the heating rail and are the thread guides on one Heated temperature, which is above the melt temperature of the polymer, from which the synthetic threads are made. It turned out that with this thread guide a very good heat transfer - in a wide range regardless of the size of the wrap angle on the individual thread guide and regardless of the Sum of the wrap angles - takes place. This realization was after previous experience, according to which the size of the wrap angle and the intensity of the heat transfer are directly related, unexpectedly. According to the invention, this knowledge is also applied to one Transfer contact heater.
  • the zigzag-shaped thread run is made in that along the Heating rail thread guides are arranged, which come from the contact surface of the The heating rail protrudes essentially vertically and has a longitudinal distance A and have a side spacing U.
  • Heat transfer and that The friction behavior of the thread is in the further design of the Invention optimized in that the amplitude 6 to 15 ⁇ , preferably 9 to 14 ⁇ of the longitudinal distance A and that the diameter of the Thread guide in the area where the thread wraps around the thread guide 8 to 25 mm, preferably 10 to 20 mm.
  • the curling of a synthetic thread is achieved above all Advantage that the reproduction of the false twister Swirls in the heating zone is not hindered because the wrapping on the thread guides is very low.
  • the heat transfer no longer by intensifying the contact between the Contact heating surface and the thread brought about, but in that the formation of an air jacket preventing heat transfer prevented and an already created air jacket on the thread guides is effectively peeled off.
  • the thread is ideally treated, particularly in the lower titer range ⁇ 100 dtex.
  • the heating device according to EP 412 429 consists of two heating rails, which are inclined roof-shaped relative to each other in such a way that the two Form the heating rails at an obtuse angle. This too Positioning has to be done with great accuracy, the positioning should be easily adjustable and reproducible.
  • the solution is emerges from claim 12.
  • the effect proposed U-profile at the same time in the sense of a temperature equalization over the length of the heater.
  • Such threads are e.g. B. made of polyamide (nylon) manufactured and used for women's stockings.
  • the revision is particularly problematic when the heating rail on a Temperature is heated, which is above the melt temperature of the polymer, e.g. B. polyamides.
  • Such high temperatures are not only for efficient heat transfer and thus a shortening of the Heater length is an advantage.
  • These high temperatures have also Consequence that the heater cleans itself to a certain degree, so that the Cleaning intervals can be extended. On the other hand, this has high temperature means that the thread melts when overheated. This overheating should be avoided. The appropriate procedure for this results from claim 15.
  • the heating device 10 is in an insulating box (not shown) housed in a heat-insulating material, e.g. Glass fibers, is embedded.
  • a heat-insulating material e.g. Glass fibers
  • the insulating box can be used a flap (not shown) may be provided, which makes it possible to open to provide access to the heater 10 and the thread to insert.
  • the peripheral surfaces, with which the thread guides 32 touch the thread 38 a relative have a large diameter.
  • the zigzag line has in which the thread 38 through the overlap U of the successive Thread guide 32 is guided, a relatively small amplitude relatively large distance A between two adjacent thread guides 32. This ensures that the wrap angle with which the thread 38, the thread guides 32 or the contact surfaces formed on them loops, is also small in total. Therefore, the rotation of the Thread 38 in the false twist zone of a false twist crimping machine is not with special needs.
  • the contact length is due to the large diameter of the thread large enough that a thread of small titer (e.g. 20 dtex) once over a thread guide 32 once around its axis rotates and therefore the air jacket which surrounds the thread 38 and the Heat transfer hindered, completely stripped.
  • a thread of larger titre needs the for a complete rotation Overflow over two or three thread guides.
  • the number of Thread guides distributed over the length of the heating rail and in particular at least the number of thread guides distributed over several heating rails is double of two or three, it is guaranteed that in any case when the thread passes through the heating device Double stripping of the air jacket surrounding the thread he follows.
  • Thread guides are different Diameter D1 and D2 can be used.
  • the thread guides are arranged at the same distance A.
  • a zigzag line of the Thread run out. The amplitude of this zigzag line is labeled U. This size U is identical to the overlap of two successive ones Thread guides, which results from the successive Thread guides each protrude above the central plane 50.
  • the heating rail has on its side facing away from the longitudinal groove 12, two grooves, which are essentially below the longitudinal grooves 12. In these Grooves are inserted into heating elements 24 and 26.
  • the heating elements 24, 26 are by a mounting rail 58, which extends over the entire length of the Heated rail extends, clamped.
  • the mounting rail also has this 58 grooves that surround the heating elements 24, 26. By loosening the mounting rail 58, the heating elements 24, 26 can be easily replaced become.
  • the heating rail has two longitudinal grooves 12 running parallel to one another on.
  • the side walls 18, 20, 22 of the longitudinal grooves have recesses, in which the thread guides 32 are embedded such that they with their cylinder jacket protrude laterally into the relevant longitudinal groove 12 and on both sides their common median plane 50 is offset from each other are that the cylinder jackets of the thread guide 32 zigzag the thread redirect.
  • the recesses 28 have a cylindrical cross section, which is adapted to the cross section of the thread guide 32.
  • the Thread guides are conical at their end remote from the heating surface 34 beveled.
  • the heating rail with two parallel longitudinal grooves points between the two Longitudinal grooves on a partition 20.
  • the partition 20 is larger than that Radius and smaller than the diameter of the one located in this partition Recesses 28 with the thread guides 32 inserted therein.
  • the diameter the thread guide 32 inserted in the partition 20 is larger than the diameter of the thread guides inserted in the side walls 18, 22.
  • a sheet metal cap 52 is placed extends in the longitudinal direction of the heating rail and which on the end faces the thread guide 32 rests and at least part of the Side wall 18, 20, 22 projecting end faces of the thread guide 32 covers.
  • a mounting rail 58 is designed as a U-profile, the side flanks embrace the heating rails.
  • the heating rails are on feet 60 in the Fastening rail 58 arranged.
  • Contact blocks 40 are inserted into the longitudinal grooves 12 of the heating rail. These contact blocks 40 are elongated cuboids that exactly in the longitudinal groove 12 and in the space between two each other following thread guides 32 fit. The height of the cuboid is such that it only partially fill the groove. Since the bottom of the longitudinal groove 12 is straight and the cuboids are all the same size, the tops are aligned the contact blocks 40, which face the opening of the longitudinal groove 12, on a flat surface. The thread is now over this level
  • the second heater has no such contact blocks in the case shown.
  • the thread is guided without contact along the bottom of the groove.
  • Are for Spacers 64 are provided over the length of this second part are distributed.
  • the thread run is such that the thread is initially in contact with the contact blocks 40 of the first heater part and then through the second heater part is guided.
  • Both heater parts can be set to temperatures, which are above the melt temperature. That is in Case of the first heater part in which the thread is in contact with the Contact blocks is run, the more unexpected than here Temperatures can be applied at which a self-cleaning effect by burning, i.e. Residue oxidation, occurs.
  • the two-part heating device according to FIG. 1 is shown only as an example. It is also possible to use the thread only to be treated by a contact heater, the temperature of which again in the range of the target temperature or in the range above the Melt temperature can be. 1 it is also possible, the contactless part of the heating in the thread run in front to arrange the contact heater.
  • the contact blocks 40 are clamped in the groove either by that the contact blocks 40 are made to an interference fit. You can can also be clamped by side clamping screws. Likewise it is possible to divide the heating rail in the area of a slot wall and by screwing so tight that the contact blocks be pinched.
  • the contact blocks 40 can the distance Fill in completely between the thread guides. You can, however extend only over part of this distance so that the thread in the remaining part without contact and by radiation and convection is heated. It is also possible that the contact blocks at the ends of the thread guides so close that the thread is always in contact with a heated surface - d. H. alternating with the contact block and the following thread guide - to be led.
  • Fig. 4 shows a heater, which in all of the heater Fig. 1 corresponds. In this respect, reference is made to the description of FIG. 1 taken. There is only the following difference:
  • contact blocks 40 in which the thread is guided in contact with a heating surface, alternate with contactless zones 62, in which the thread is guided at a distance from the heated surface. This is achieved in that either contact blocks 40 are inserted into the groove between two thread guides 32. This creates contact zones. Or these contact blocks are omitted. This creates contactless zones.
  • the thickness of the blocks is limited. In any case, it is more than 1/10 of the total groove height; however, it is in any case less than 1/2 and preferably less than 1/5 of the total groove height.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
EP95107629A 1994-06-22 1995-05-18 Heizschiene zur Erwärmung eines laufenden synthetischen Fadens Expired - Lifetime EP0691429B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4421841 1994-06-22
DE4421841 1994-06-22
DE4440516 1994-11-12
DE4440516 1994-11-12

Publications (3)

Publication Number Publication Date
EP0691429A2 EP0691429A2 (de) 1996-01-10
EP0691429A3 EP0691429A3 (de) 1996-02-28
EP0691429B1 true EP0691429B1 (de) 1999-08-04

Family

ID=25937628

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95107629A Expired - Lifetime EP0691429B1 (de) 1994-06-22 1995-05-18 Heizschiene zur Erwärmung eines laufenden synthetischen Fadens

Country Status (5)

Country Link
US (1) US5628175A (enrdf_load_stackoverflow)
EP (1) EP0691429B1 (enrdf_load_stackoverflow)
CN (1) CN1113992C (enrdf_load_stackoverflow)
DE (1) DE59506513D1 (enrdf_load_stackoverflow)
TW (1) TW281695B (enrdf_load_stackoverflow)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0802993B1 (fr) * 1994-11-22 1999-07-21 Icbt Yarn Procede d'etirage-texturation par fausse torsion et four permettant sa mise en oeuvre
DE59609899D1 (de) * 1995-06-27 2003-01-09 Barmag Barmer Maschf Heizeinrichtung zum Erwärmen eines laufenden Fadens
DE59702549D1 (de) * 1996-04-03 2000-12-07 Barmag Barmer Maschf Heizeinrichtung mit auswechselbarem Fadenführereinsatz
TR200103274T2 (tr) 1999-05-29 2002-04-22 Barmag Ag Isıtma tertibatı.
DE102016007984A1 (de) * 2016-06-30 2018-01-04 Oerlikon Textile Gmbh & Co. Kg Heizvorrichtung
DE102019003801A1 (de) * 2019-05-28 2020-12-03 Oerlikon Textile Gmbh & Co. Kg Heizvorrichtung zum Erwärmen eines laufenden Fadens

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2990670A (en) * 1957-03-07 1961-07-04 North American Rayon Corp Yarn crimping and texturing apparatus
GB890057A (en) * 1959-08-22 1962-02-21 Scragg & Sons Improvements in means for heating textile yarns
GB1126624A (en) * 1964-09-19 1968-09-11 Scragg & Sons Yarn heating apparatus
GB1275270A (en) * 1968-07-23 1972-05-24 Teijin Ltd Apparatus for heating synthetic filaments
DE2534598A1 (de) * 1975-08-02 1977-02-10 Karl Bous Verfahren und vorrichtung zum behandeln von faden- oder bandfoermigem textilmaterial, insbesondere garnen
FR2451415A1 (fr) * 1979-03-15 1980-10-10 Astin France Assist Tech Indle Dispositif de chauffage pour un materiau souple en defilement
DE3301510A1 (de) * 1982-02-04 1983-08-04 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Heizeinrichtung fuer die erwaermung laufender faeden
US4567721A (en) * 1983-11-01 1986-02-04 Teijin Limited Method for producing textured yarn
DE3801506C2 (de) * 1987-02-05 1996-09-19 Barmag Barmer Maschf Falschzwirnkräuselmaschine
US5313776A (en) * 1987-11-17 1994-05-24 Rhone-Poulenc Viscosuisse Sa Process for manufacturing an elastic bulk yarn
DE59009571D1 (de) * 1989-07-01 1995-10-05 Barmag Barmer Maschf Falschzwirnkräuselmaschine für einen synthetischen Faden.
EP0412429B1 (de) 1989-08-09 1994-11-17 Barmag Ag Heizeinrichtung
DE4020706A1 (de) * 1990-06-29 1992-01-09 Barmag Barmer Maschf Heizeinrichtung
US5138829A (en) * 1990-02-10 1992-08-18 Teijin Seiki Co., Ltd. Apparatus for heat treating a synthetic yarn
JP3164180B2 (ja) * 1992-07-24 2001-05-08 帝人製機株式会社 合成繊維糸条の熱処理装置
DE4318674A1 (de) * 1992-06-06 1993-12-09 Barmag Barmer Maschf Vorrichtung zum Erhitzen eines laufenden Fadens
DE4318675A1 (de) * 1992-06-06 1993-12-09 Barmag Barmer Maschf Metallische Fadenheizschiene
JP2571180B2 (ja) * 1992-12-08 1997-01-16 東洋電機株式会社 仮撚り加工用加熱装置
JP2598215B2 (ja) * 1993-03-31 1997-04-09 帝人製機株式会社 仮撚機の冷却装置
KR0130551B1 (ko) * 1993-06-15 1998-04-08 클라우스 퓌팅, 디이터 핑슈텐 사가열장치

Also Published As

Publication number Publication date
EP0691429A3 (de) 1996-02-28
US5628175A (en) 1997-05-13
CN1128815A (zh) 1996-08-14
EP0691429A2 (de) 1996-01-10
CN1113992C (zh) 2003-07-09
TW281695B (enrdf_load_stackoverflow) 1996-07-21
DE59506513D1 (de) 1999-09-09

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