EP0731197B1 - Heizeinrichtung zum Erhitzen eines laufenden Fadens - Google Patents

Heizeinrichtung zum Erhitzen eines laufenden Fadens Download PDF

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Publication number
EP0731197B1
EP0731197B1 EP96102829A EP96102829A EP0731197B1 EP 0731197 B1 EP0731197 B1 EP 0731197B1 EP 96102829 A EP96102829 A EP 96102829A EP 96102829 A EP96102829 A EP 96102829A EP 0731197 B1 EP0731197 B1 EP 0731197B1
Authority
EP
European Patent Office
Prior art keywords
heating apparatus
yarn
metal strips
thread
yarn guides
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
EP96102829A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0731197A1 (de
Inventor
Siegfried Morhenne
Peter Berger
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26013219&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0731197(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Barmag AG, Barmag Barmer Maschinenfabrik AG filed Critical Barmag AG
Publication of EP0731197A1 publication Critical patent/EP0731197A1/de
Application granted granted Critical
Publication of EP0731197B1 publication Critical patent/EP0731197B1/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
    • D02J13/001—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
    • 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
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • 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

Definitions

  • the invention relates to a heating device for heating a running thread with the features of the preamble of claim 1.
  • a Thread is guided.
  • the thread is guided in a heatable longitudinal groove, the thread target temperature in the range between 150 ° C and 230 ° C.
  • the heater is operated at a temperature which is significantly above 300 ° C.
  • One heater can have several Have grooves, in each of which a thread is guided.
  • a heating device is known from EP 0 412 429 B1 heated longitudinal groove in which the thread along a zigzag Line is guided.
  • the zigzag line is through several thread guides stretched, at each turning point of the line a thread guide is arranged.
  • the thread guides are individual Crosspieces that are parallel to each other at the same distance in the longitudinal groove are used.
  • thread guides become dirty after some time due to inorganic deposits.
  • the thread guides must be dismantled and cleaned so that the deviation of the thread guide from the nominal value does not become excessive.
  • each thread guide must be replaced individually, which is time-consuming.
  • the present invention is based on the object, the known Heating device so that the number of thread guide components minimized and the handling for changing the thread guide is simplified.
  • This task is accomplished by a heater with the characteristics of the Claim 1 solved.
  • the heating device according to the invention is characterized in that the thread guides as elevations on two opposing metal strips are molded. Since the surveys take turns on one and attached to the other metal band and the bumps Protruding beyond the center plane of the groove, the thread is zigzag-shaped Lines run.
  • the metal strips can be made by hot or cold forming be so that the position and dimensions of the surveys of a Shape or tool are dependent and very high among themselves Show accuracy. So that the wrap angles and the Friction at each point of deflection of the thread is the same thing the smooth running of the thread favors.
  • the metal bands are supported the opposite side walls of the longitudinal groove and are positioned to each other so that the opposite thread guides stand offset from each other.
  • both metal strips can easily be pulled out of the longitudinal groove and then pushed in again. So that the thread assumes an evenly smooth running during the entire heating section, the thread guides are to be arranged according to claim 2.
  • the design of the heating device according to claim 3 is special advantageous if the thread is to be heated up very quickly.
  • the arrangement of the elevations on the metal strips can also be done in this way take place that alternately two successive surveys are formed on one and the other metal band.
  • the wrap angle per thread guide is advantageous reduced by 50%.
  • the embodiment according to claim 5 is due to the low manufacturing costs the sheet metal strip is an advantage. To make the beads simple bending or stamping tools can be used.
  • the metal strips are used to position the opposite thread guides connected to each other by means of several webs.
  • the webs are advantageously arranged near the bottom of the groove, so that prevents is that the thread in contact with the heating surface of the groove base occurs.
  • the opposite thread guides are formed on a profiled sheet and the position of the thread guides relative to one another is determined exclusively by the bending or embossing tool.
  • the embodiment according to claim 8 shows an inexpensive alternative to obtain a shaped profile from a flat sheet metal strip. The incisions parallel to the fold line allow the formation of the beads up to the groove base in the folded state. It also prevents the bead from running into the fold line, which would greatly hinder the subsequent deformation.
  • the ends of the thread guides will be on the side of the thread insert according to claim 9 preferably carried out so that they to the groove center plane are flattened out. This results in a V-shape in the longitudinal direction or circular infeed, which makes inserting the thread easy Way. If the thread guide is in the form of a bead, so is the bead starting from the top of the longitudinal groove with a introduced increasing depth. There is a profile in the longitudinal groove V-shaped opening towards the insertion side.
  • the embodiments according to claims 10 and 11 show an advantageous embodiment of the thread guide in the side walls, so that a favorable wrap angle and a small friction surface are established.
  • the shape of the thread guide must be precisely defined beforehand, since it significantly influences the running properties of the thread.
  • threads made of certain types of polymer such as. B. Poyamid
  • This treatment can advantageously be carried out with a heating device according to claims 12 and 13.
  • the embodiment according to claims 14 and 15 prevents the thread from touching the bottom of the groove and thus not being damaged due to excessive heat load.
  • the limitation of the base bead by incisions parallel to the fold line is advantageous.
  • the metal band on the inside at least in the Have a hard material coating in the area of the thread guides.
  • the metal band or the profile with the molded thread guides be nitrided or borated.
  • the layer thickness is 10 to 30 ⁇ m. It surface hardness of 1,000 HV to 2,000 HV can be achieved.
  • These relatively thin layers of 6 to 9 ⁇ m are applied by the PVD or CVD process.
  • the surface hardness is in the range> 3,500 HV. It is at this point expressly said that the heating device according to the invention is not only limited to the types of coating mentioned, but also all usual types of coating could be considered.
  • the design of the heating device according to claim 19 and 20 offers the advantage that several heating zones are formed with different thread guides. This enables additional temperature and thread quality optimizations. According to claim 21, the heating zones of the heating device can be flexibly combined.
  • a plurality of thread guides are formed as elevation 6.1 on a metal strip 3 in the longitudinal direction on one side of the metal strip 3.
  • the elevations 6.1 preferably have a part-circular or part-elliptical cross-section and, as can be seen in FIG. 1, are of the same size.
  • the elevations 6.1 are cylindrical, so that a curved thread guide surface 20 is formed.
  • a bevel 10 is formed on one end of the thread guide or elevations 6.1. The bevel 10 is inclined so that it forms an acute angle with the metal band. The bevel is on the side from which the thread is inserted.
  • the shaping of the metal strips 3 can be produced from solid material by means of cold or hot forming or by means of machining.
  • the width of the metal strip 3, which results from the depth of the elevation 6.1 and the sheet thickness, must be somewhat larger than half the width of the longitudinal groove 2, which is formed in a heating device 1.
  • a heating device 1 which has a longitudinal groove 2 arranged.
  • Two metal strips 3.1 and 3.2 are inserted into the longitudinal groove 2.
  • the metal strips 3.1 and 3.2 are supported on the opposite side walls 4 and 5 of the longitudinal groove 2.
  • the elevations 6.1 of the metal strip 3.1 and the elevations 6.2 of the metal strip 3.2 - here designed as beads 21 - are arranged opposite one another, the depth of the elevations 6.1 and the depth of the elevation 6.2 reaching beyond the central plane of the groove.
  • the surfaces of the elevations form the thread guide surfaces 20.
  • the inserted thread 7 is deflected to the thread guide 6 in such a way that a zigzag-shaped line is established.
  • the metal strips 3.1 and 3.2 according to Fig. 2.1 and 2.2 are as sheet metal strips executed. Beads 21 are stamped into the sheet metal strip.
  • the two Metal strips 3.1 and 3.2 are interconnected via the webs 8 in the groove base 9 connected so that the position of the metal strips 3.1 and 3.2 is fixed to each other.
  • the webs 8 are preferably at a distance to the groove base 9 between the two metal strips 3.1 and 3.2 attached so that the thread 7 not with the groove bottom 9 of the heater 1 comes into contact.
  • Fig. 2.2 it is shown that the metal strips 3.1 and 3.2 end with a raised portion 6.1 and 6.2 on the insertion side in a bevel 10.
  • the bevel 10 is inclined towards the center of the groove, so that a V-shaped or circular inlet 11 is obtained, which facilitates the insertion of the thread 7.
  • the embodiment according to Fig. 3.1 and 3.2 consists of a profile 14 or a deformed sheet metal strip, the thread guide 6 as beads 21 alternately on both sides of the longitudinal center on the side flanks 14.1 and 14.2 are embossed on one and the other side and the Guide the thread in a zigzag shape along the longitudinal groove 2.
  • the profile 14 has a cross section that corresponds to the cross section of the Longitudinal groove 2 corresponds.
  • the beads 21 are designed so that the depth the bead 21 starting from the top of the longitudinal groove 2 to her the maximum depth required for thread guidance increases.
  • Out Fig.3.2 can be seen that this creates a bevel 10 and thus a V-shaped inlet 11 is formed, which is also the insertion of the thread relieved.
  • the surrounds 12 have a part-circular or part-elliptical cross section. There are but other cross-sections are also possible.
  • Fig. 4.1 a profile with the side walls 14.1 and 14.2 is shown at which alternately two consecutive beads 21 in the Sidewalls are embossed.
  • This arrangement of the thread guides is achieved that the loop of the thread with the same number of Thread guides compared to the heating device according to Fig. 3.1 by 50% can be reduced.
  • this heater is after Fig. 4.1 the distance between opposite thread guides 6 executed smaller at the beginning of the heating section than in the wider Course of the heating section. This creates an irregular zigzag Thread course. Especially in the beginning the short leads Zigzag for rapid heating of the thread because of the thread air jacket carried is stripped several times in quick succession and in addition, the thread is quickly calmed in its course.
  • the thread guide arrangement has at the beginning a low thread wrap per Thread guide allows to then in a regular zigzag course alternating with a thread guide.
  • the Thread guide embossed again as beads 21.
  • the profile 14 is preferably made from a flat sheet metal strip 15.
  • the sheet metal strip 15, as shown in Fig. 5.1 is folded along two fold lines 18 to a desired profile.
  • the beads 21 and the bottom beads 12 are previously introduced into the sheet metal strip 15 by means of a bending punch. To limit the beads 21 and the bottom beads 12 towards the fold line 18, the incisions 16 and 17 are produced before the deformation.
  • FIG. 6 shows a heating device with profiles 14 and 19 lying one behind the other in the longitudinal direction of the longitudinal groove 2.
  • the metal strips are formed by the side flanks 14.1, 14.2 and 19.1, 19.2 of the profiles 14 and 19.
  • the beads 21.1 are embossed in the side flanks 14.1 and 14.2 and the beads 21.2 in the side flanks 19.1 and 19.2.
  • the beads 21.1 and 21.2 all have the same depths. The distances between the beads 21.1 on the side flanks 14.1 and 14.2 and the distances between the beads 21.2 on the side flanks 19.1 and 19.2 are not the same, so that the thread is guided differently in the heating zones of the profiles 14 and 19.
  • the 7 again shows a profile inserted into the longitudinal groove 2 with the side flanks 14.1 and 14.2, which are supported on the side walls 4 and 5.
  • the beads 22 are formed in the side flanks 14.1 and 14.2.
  • the beads 22 have a rectangular cross section, which have the guide surface 23 formed on their long side.
  • the beads 22 penetrate the central plane of the longitudinal groove 2, so that the thread 7 is guided in a zigzag shape along the longitudinal groove 2.
  • the thread 7 rests on the guide surface 23, so that a very there is a large contact area. With this heating device, it is possible to heat the thread by contact.
  • the heating devices 1 shown in Fig. 2.1 to 6 are elongated Rails shown.
  • the longitudinal groove 2 is heated by a resistance heater 13.
  • the resistance heater 13 is trained as a rod. This rod is embedded in a hole, which is introduced into the base plate of the heating device in the longitudinal direction. To avoid heat loss, the longitudinal groove 2 is in operation, after the thread has been inserted, closed with a lid.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Treatment Of Fiber Materials (AREA)
  • General Induction Heating (AREA)
EP96102829A 1995-03-10 1996-02-26 Heizeinrichtung zum Erhitzen eines laufenden Fadens Expired - Lifetime EP0731197B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19508519 1995-03-10
DE19508519 1995-03-10
DE19530360 1995-08-18
DE19530360 1995-08-18

Publications (2)

Publication Number Publication Date
EP0731197A1 EP0731197A1 (de) 1996-09-11
EP0731197B1 true EP0731197B1 (de) 1999-05-12

Family

ID=26013219

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96102829A Expired - Lifetime EP0731197B1 (de) 1995-03-10 1996-02-26 Heizeinrichtung zum Erhitzen eines laufenden Fadens

Country Status (6)

Country Link
US (1) US5628176A (ko)
EP (1) EP0731197B1 (ko)
KR (1) KR100382095B1 (ko)
CN (1) CN1066218C (ko)
DE (1) DE59601849D1 (ko)
TW (1) TW422219U (ko)

Families Citing this family (7)

* 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
EP0751245B1 (de) * 1995-06-27 2002-11-27 B a r m a g AG Heizeinrichtung zum Erwärmen eines laufenden Fadens
DE59702549D1 (de) * 1996-04-03 2000-12-07 Barmag Barmer Maschf Heizeinrichtung mit auswechselbarem Fadenführereinsatz
JP3490844B2 (ja) * 1996-05-30 2004-01-26 東レエンジニアリング株式会社 仮撚機の冷却装置
WO2000073557A2 (de) 1999-05-29 2000-12-07 Barmag Ag Heizeinrichtung
CN103469409A (zh) * 2013-09-11 2013-12-25 昆山市巴城镇顺拓工程机械配件厂 一种塑料纤维调整装置
CN110699797B (zh) * 2019-09-27 2020-08-04 浙江正堂实业股份有限公司 一种用于加工牛仔布经线的加弹机

Family Cites Families (8)

* 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
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
DE59007713D1 (de) * 1989-08-09 1994-12-22 Barmag Barmer Maschf Heizeinrichtung.
DE4318675A1 (de) * 1992-06-06 1993-12-09 Barmag Barmer Maschf Metallische Fadenheizschiene
JP2598215B2 (ja) * 1993-03-31 1997-04-09 帝人製機株式会社 仮撚機の冷却装置
EP0659221B1 (de) * 1993-06-15 1998-02-04 B a r m a g AG Heizschiene
DE4423202C2 (de) * 1993-07-17 1996-05-02 Barmag Barmer Maschf Heizeinrichtung zum Erhitzen eines laufenden Fadens

Also Published As

Publication number Publication date
CN1137581A (zh) 1996-12-11
TW422219U (en) 2001-02-11
CN1066218C (zh) 2001-05-23
DE59601849D1 (de) 1999-06-17
KR100382095B1 (ko) 2003-07-18
EP0731197A1 (de) 1996-09-11
US5628176A (en) 1997-05-13
KR960034500A (ko) 1996-10-22

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