EP1048624B1 - Verfahren und Vorrichtung zum Herstellen eines strangartigen Verbundes aus Glasfasern - Google Patents

Verfahren und Vorrichtung zum Herstellen eines strangartigen Verbundes aus Glasfasern Download PDF

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Publication number
EP1048624B1
EP1048624B1 EP00108715A EP00108715A EP1048624B1 EP 1048624 B1 EP1048624 B1 EP 1048624B1 EP 00108715 A EP00108715 A EP 00108715A EP 00108715 A EP00108715 A EP 00108715A EP 1048624 B1 EP1048624 B1 EP 1048624B1
Authority
EP
European Patent Office
Prior art keywords
glass
deflection
threads
drawing surface
glass filaments
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
EP00108715A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1048624A1 (de
Inventor
Michaela Klaus
Petra Bursian
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.)
Johns Manville Europe GmbH
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Johns Manville Europe GmbH
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Filing date
Publication date
Application filed by Johns Manville Europe GmbH filed Critical Johns Manville Europe GmbH
Priority to DK00108715T priority Critical patent/DK1048624T3/da
Publication of EP1048624A1 publication Critical patent/EP1048624A1/de
Application granted granted Critical
Publication of EP1048624B1 publication Critical patent/EP1048624B1/de
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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/16—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam

Definitions

  • the invention relates to a method for producing a strand-like composite of glass fibers, in which with With the help of a formed on the surface of a spinning drum rotating drawing surface parallel to each other Glass threads are pulled out after a predetermined dwell time lifted from the drawing surface and are deflected, the glass threads after lifting summarized transversely to the direction of rotation of the drawing surface and in a direction parallel to a radial direction the pull area. Furthermore concerns the invention an apparatus for manufacturing a strand-like composite of glass fibers with a formed on the surface of a spinning drum, rotating Drawing surface on which a lifting device is arranged is to which a forward facing Control device connects.
  • Such a method and device are known from US-A-2 621 444.
  • Behind the doctor blade is one Deflector arranged, behind which in turn Type funnel is provided in which the glass fibers cross be summarized to the direction of rotation of the drawing drum. When deflecting the glass fibers on the wall guided along the deflection device.
  • the so produced Fiber composite is a composite of staple fibers.
  • Staple fibers have a limited length of a few Centimeters. They are liable due to the turbulence in the Spinning funnels well together, but the strength is i.e. the pulling force or maximum pulling force, one limited such fiber composite. This leads, for example then difficulties if such Fiber composite should be used for warp threads. In order to make such a staple fiber warpable, are sometimes relatively complex post-processing necessary.
  • the invention has for its object, a particular warpable yarn with a higher strength than To produce staple fiber yarn
  • This task is carried out in a method of the type mentioned at the beginning Kind of solved by having an air cushion trains with which you cushion the glass threads when deflecting.
  • the deflection is preferably carried out with a radius and an angle at which at least a predetermined proportion the glass fibers do not break. Such a share can be determined statistically. So that is the strength of the yarn further increased. For example, if you ensures that at least 50% or at least 70% of the Glass threads survive the deflection safely, then get a yarn with relatively long individual fibers.
  • the combined glass threads are preferably one Subject to closing.
  • This closing can for example, in a vortex, which is why used an air flow. This increases the strength of the yarn.
  • the closing process bundles the fibers to a "direct yarn" so that no longer parallel single fibers lying on the spool, but pulled a coherent composite from the coil can be.
  • a preparation job is performed after summarizing the Glass threads.
  • This preparation job can also be done before or during the closing process.
  • With the preparation for example Improve the sliding or running properties of the yarn.
  • the combination is preferably carried out with the aid of a guided air flow.
  • the individual glass threads are thus practically “contact-free” through device parts guided. This reduces the risk of damage further.
  • For the guidance of the air flow are natural any guide walls or channels required.
  • the individual glass threads can be in the air flow then swim with it.
  • the glass threads are preferably formed from C glass.
  • the guide device at least sectionally a funnel-like, in the direction of travel of the glass fibers Has structure and the deflection section an escape space to accommodate a cushioning of the glass fibers Has air cushion.
  • the guide device preferably has a deflection section on that is arranged behind the lifting device , wherein the deflection section is a deflection angle less than 120 °.
  • the deflection angle gives change direction. Because of the low Changing direction is the danger that it will break the glass thread comes, relatively low. With that you can Manufacture very stable glass fiber yarns with high strength.
  • the deflection radius is greater than is a kink radius at which a predetermined proportion the glass threads break.
  • the Aftertreatment device can, for example, as Closing, swirling or texturing device formed his. It can also simply be an air nozzle act.
  • the yarn processed in this way can do more or are used less directly than warp yarn.
  • a device 1 for producing a so-called direct yarn 2 has bushings 3, i.e. small melting tanks for glass, for example in the form of pellets, the one in a known manner on its underside Have a large number of nozzles from which glass threads 4 flow out.
  • the glass threads 4 arrive in a known manner Way to the back of a spinning drum 5, which can also be called a drawing drum.
  • the Surface 6 of the spinning drum forms when the Spinning drum 5 rotates in the direction of arrow 7, one rotating drawing surface.
  • the glass threads stick 4 on the surface 6 and can thus be pulled out.
  • the glass threads on a take-off device 8 for example one Doctor blade, removed, i.e. from the surface 6 the spinning drum 5 is lifted off.
  • the doctor blade basically does not work directly mechanically onto the glass threads which, as shown in Fig. 1 can be seen side by side and parallel to each other rest on the surface 6 of the spinning drum 5, but the scraper blade lifts it on the spinning drum adhering air layer and thus also the overlying ones Glass threads 4 from.
  • the lifted glass threads then go into a guide device 9. They arrive in the control device 9 first into a deflection section 10, with its direction of movement is changed by a little more than 90 °. If one imagines that the glass threads 4 in their circulation around the spinning drum 5 basically in one plane (cutting plane with a cut perpendicular to the Rotation axis), this deflection also takes place in the Deflection section 10 essentially in this plane. The So glass threads won't look like this DE 36 34 904 A1 is known, parallel to the axis of rotation deducted.
  • the guide device 9 has a funnel section 12 on whose side walls 13, 14 converge towards the front.
  • the deflection section 10 there can still be an air cushion in one Alternative space 16 may be provided. Install there certain back pressure so that the glass threads in operation not against the upper wall of the guide device 9 be pressed, but, as shown, at the bottom End of the guidance system, in many cases even scarce outside the control device, can be deducted.
  • a treatment facility is located behind the control facility 17 provided. This can be used as a closing, swirling or texturing device or simply as an air nozzle be trained. Through targeted coordination the drum peripheral speed to the take-off speed the winding device 15 can influence the Take volume of yarn. If both are the same, get for example, a more compact yarn than if the peripheral speed is greater than the take-off speed is.
  • this yarn is composed of threads which is not continuous fibers in mathematical Form senses but have a relatively long length, the length of staple fibers is multiple outperform. This is also one of the reasons causes the deflection in the deflection section 10 of the Guide device is done relatively gently. Besides the relative small deflection angle you also use a radius, which is so large that there is a risk of thread breaks stays small.
  • the device 19 can also be in front of the treatment device 17 or be arranged in it if there is the treatment device 17 is an air nozzle is. Among other things, this depends on the type the preparation.
  • the glass threads no longer swirled in the control device, but only to a fiber bundle with filament-like Structure summarized.
  • This yarn behaves then like a yarn made of endless glass fibers. It results a very dense material.
  • the roving manufacturing process saves you that Drying.
  • the yarn produced in this way can be used as a warp yarn can be used in woven or knitted fabrics. A corresponding one Staple fiber pre-yarn would have to be warpable, be rotated, which is an additional operation requires.
  • the yarn 2 has a strength between that of staple fiber yarns and filament yarns. you can, for example in the treatment device 17, achieve further consolidation of the yarn. Of looks Yarn 2 has a similarity to roving or textured yarn. The production speed is relatively high. You can reach up to 1600 m / min.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Laminated Bodies (AREA)
  • Nonwoven Fabrics (AREA)
  • Glass Compositions (AREA)
  • Reinforced Plastic Materials (AREA)
EP00108715A 1999-04-28 2000-04-22 Verfahren und Vorrichtung zum Herstellen eines strangartigen Verbundes aus Glasfasern Expired - Lifetime EP1048624B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DK00108715T DK1048624T3 (da) 1999-04-28 2000-04-22 Fremgangsmåde og anordning til fremstilling af en strengagtig komposit af glasfiber

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19919297A DE19919297C2 (de) 1999-04-28 1999-04-28 Verfahren und Vorrichtung zum Herstellen eines strangartigen Verbundes aus Glasfasern
DE19919297 1999-04-28

Publications (2)

Publication Number Publication Date
EP1048624A1 EP1048624A1 (de) 2000-11-02
EP1048624B1 true EP1048624B1 (de) 2004-08-11

Family

ID=7906152

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00108715A Expired - Lifetime EP1048624B1 (de) 1999-04-28 2000-04-22 Verfahren und Vorrichtung zum Herstellen eines strangartigen Verbundes aus Glasfasern

Country Status (9)

Country Link
EP (1) EP1048624B1 (cs)
AT (1) ATE273249T1 (cs)
CA (1) CA2307112A1 (cs)
CZ (1) CZ300848B6 (cs)
DE (2) DE19919297C2 (cs)
DK (1) DK1048624T3 (cs)
ES (1) ES2224954T3 (cs)
PL (1) PL191282B1 (cs)
RU (1) RU2234472C2 (cs)

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2621444A (en) * 1948-04-21 1952-12-16 Schuller Werner Process and apparatus for the continuous production of a sliver or roving from fibers of glass, plastic, or like substances
BE505323A (cs) * 1950-11-22 1900-01-01
DE1596559B1 (de) * 1965-05-17 1971-07-01 Owens Corning Fiberglass Corp Vorrichtung zum kontinuierlichen herstellen von glas faeden mit einem durchmesser von hoechstens 2,5 mm durch ausziehen auf einer rotierenden oberflaeche, zum abtrennen von glastropfen und zum sammeln in form einer vielschichtigen matte
AT291455B (de) * 1968-07-18 1971-07-12 Schuller Gmbh Glaswerk Verfahren und Vorrichtung zur Herstellung von Glasfaserkörpern
US3955952A (en) * 1974-03-18 1976-05-11 Ppg Industries, Inc. Method of making a slubby strand
JPS5438926A (en) * 1977-07-11 1979-03-24 Nitto Boseki Co Ltd Cutting of glass strand and its device
DE3518769C2 (de) * 1985-05-24 1987-04-30 Glaswerk Schuller Gmbh, 6980 Wertheim Vorrichtung für die Herstellung von Vliesen, Matten, Garnen und Vorgarnen aus Glasfasern sowie Verfahren zu deren Betrieb
DE3634904A1 (de) * 1986-10-14 1988-04-28 Schuller Gmbh Glaswerk Verfahren zur herstellung eines mischfaserbandes aus glasfasern und fasern oder faeden anderen materials
SU1749190A1 (ru) * 1990-05-22 1992-07-23 Научно-Исследовательский И Проектный Институт Строительных Материалов Устройство дл изготовлени волокна
FR2691171B1 (fr) * 1992-05-15 1994-12-23 Vetrotex France Sa Procédé de fabrication d'un fil continu par étirage mécanique et produits en résultant.
FR2698038B1 (fr) * 1992-11-19 1995-01-27 Vetrotex France Sa Procédé et dispositif de formation d'un fil composite.
FR2702778B1 (fr) * 1993-03-18 1995-05-05 Vetrotex France Sa Procédé et dispositif de formation d'un fil composite.
DE19800725C2 (de) * 1998-01-12 2001-06-13 Schuller Gmbh Faserverbund in Strangform und Verfahren und Vorrichtung zu seiner Herstellung

Also Published As

Publication number Publication date
ATE273249T1 (de) 2004-08-15
PL191282B1 (pl) 2006-04-28
DE19919297C2 (de) 2002-01-24
DK1048624T3 (da) 2004-11-22
EP1048624A1 (de) 2000-11-02
CZ300848B6 (cs) 2009-08-26
CZ20001532A3 (cs) 2001-04-11
ES2224954T3 (es) 2005-03-16
DE50007340D1 (de) 2004-09-16
RU2234472C2 (ru) 2004-08-20
DE19919297A1 (de) 2000-11-02
PL339829A1 (en) 2000-11-06
CA2307112A1 (en) 2000-10-28

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