EP3282046A1 - Vliesbildemaschine - Google Patents

Vliesbildemaschine Download PDF

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Publication number
EP3282046A1
EP3282046A1 EP17185273.4A EP17185273A EP3282046A1 EP 3282046 A1 EP3282046 A1 EP 3282046A1 EP 17185273 A EP17185273 A EP 17185273A EP 3282046 A1 EP3282046 A1 EP 3282046A1
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EP
European Patent Office
Prior art keywords
fibers
machine according
slide
web forming
forming machine
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
EP17185273.4A
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English (en)
French (fr)
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EP3282046B1 (de
Inventor
Hubert Hergeth
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Individual
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Individual
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/74—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being orientated, e.g. in parallel (anisotropic fleeces)
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/02—Carding machines
    • D01G15/12—Details
    • D01G15/46—Doffing or like arrangements for removing fibres from carding elements; Web-dividing apparatus; Condensers
    • D01G15/465—Doffing arrangements for removing fibres using, or cooperating with, pneumatic means
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G25/00—Lap-forming devices not integral with machines specified above
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres

Definitions

  • so-called aerodynamic web formers are used for the production of nonwovens.
  • the dissolved fibers are dropped or sucked off a garnished roll.
  • a so-called "knife” is used, which is set at a distance of 0.5 - 1.5 mm from the tips of the clothing of the roller.
  • This knife obstructs the air jacket surrounding the roller and thus promotes a lifting of the fibers from the clothing.
  • Exemplary is the DE 2535544 (Dupont ) Fig. 1 Position 12 called.
  • a special embodiment shows the DE 10255518 (Erko ).
  • the knife shows an extra edge at the top to increase the air jam.
  • the blades are made of flat steel with a maximum thickness of 30 mm, milled or ground.
  • the fibers are then sucked onto a sieve belt or drum to form a web. These webs are always isotropic because the fibers impinge approximately perpendicular to the screen.
  • the object of the invention is to provide an aerodynamically formed nonwoven in which the fibers have an orientation. This is achieved in that the knife is extended by a slide, so that the fibers do not impinge preferably vertically, but at an angle rather flat on the screen surface.
  • the slide can be massively made with the knife in one piece; Advantageously, it is made of an additional stainless steel sheet.
  • the chute may consist of a plane or have multiple bends or be rounded. In the case of a sieve drum, the reference plane is the tangent to the sieve drum in the center of the discharge cone. There, the largest pulp mass is dropped.
  • Fig. 1 shows a discharge roller of a web forming 1), on which the fibers are excavated by a knife by means of a Aushebestelle 2) and via a slide 3) to a suction point 7) of a moving screen belt 4) arrive.
  • a suction box 5 an intake stream is formed.
  • the Aushebemesser is attached to a trough 6).
  • the angle extends from the suction surface with over 135 ° to the slide surface.
  • Fig. 2 shows the same arrangement with a rounded slide. In the lower part of the slide, the angle of the slide is more than 135 ° to the suction surface.
  • the slide can z. B. via a pivot axis 8) are pivoted.
  • the suction is advantageously moved when pivoting in an ideal position with high intake.
  • the angle may also be the tangent of a screen drum at the point of preferential impact of the fibers.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

An einem aerodynamischen Vliesbilder wird nach dem Aushebeblech eine Rutsche angebracht, um die Fasern in Materiallaufrichtung auszurichten.

Description

  • Zur Herstellung von Vliesstoffen werden unter anderem sogenannte aerodynamische Vliesbildner benutzt. Die aufgelösten Fasern werden von einer garnierten Walze abgeworfen oder abgesaugt. Hierbei kommt oft ein sogenanntes "Messer" zum Einsatz, das in einem Abstand von 0,5 - 1,5 mm von den Spitzen der Garnitur der Walze eingestellt wird. Dieses Messer behindert den die Walze umgebenden Luftmantel und fördert so ein Ausheben der Fasern aus der Garnitur. Beispielhaft sei die DE 2535544 (Dupont ) Fig. 1 Position 12 genannt. Eine spezielle Ausführungsform zeigt die DE 10255518 (Erko ). Hier zeigt das Messer eine zusätzliche Kante bei der Spitze, um den Luftstau zu verstärken. Die Messer sind aus Flachstahl mit maximal 30 mm Stärke hergestellt, gefräst oder geschliffen.
  • Die Fasern werden dann auf ein Siebband oder eine Trommel angesaugt und so ein Vlies gebildet. Diese Vliese sind immer isotrop, da die Fasern in etwa senkrecht auf das Sieb auftreffen.
  • Aufgabe der Erfindung ist es, ein aerodynamisch gebildetes Vlies zu schaffen, bei dem die Fasern eine Orientierung haben. Dies wird erreicht dadurch, dass das Messer um eine Rutschbahn verlängert wird, so dass die Fasern nicht bevorzugt vertikal, sondern unter einem Winkel eher flach auf die Siebfläche auftreffen. Die Rutschbahn kann massiv mit dem Messer aus einem Stück gefertigt sein; vorteilhaft ist sie aus einem zusätzlichen Edelstahlblech gefertigt. Die Rutsche kann aus einer Ebene bestehen oder mehrere Kantungen aufweisen oder gerundet sein. Bei einer Siebtrommel ist die Bezugsebene die Tangente zur Siebtrommel in der Mitte des Abwurfkegels. Dort wird die größte Fasermasse abgeworfen.
  • Besonders vorteilhaft ist es, die Rutsche im Winkel einstellbar zu gestalten. Es können so die MD/CD Festigkeiten entsprechend den Forderungen an das Vlies eingestellt werden. Dies kann manuell oder automatisch, auch aufgrund von Messwerten erfolgen. Es ist vorteilhaft, wenn der Ansaugschlitz unter dem Sieb dem Abwurfpunkt in Position und Größe angepasst wird. Im folgenden wir die Erfindung anhand von Zeichnungen erläutert.
  • Fig. 1 zeigt eine Abwurfwalze eines Vliesbildners 1), an dem die Fasern durch ein Messer mittels einer Aushebestelle 2) ausgehoben werden und über eine Rutschbahn 3) zu einer Ansaugstelle 7) eines bewegten Siebbands 4) gelangen.
  • In einem Ansaugkasten 5) wird ein Ansaugstrom gebildet. Das Aushebemesser ist an einer Mulde 6) befestigt. Der Winkel erstreckt sich von der Ansaugfläche mit über 135 ° bis zur Rutschbahnfläche. Fig. 2 zeigt die gleiche Anordnung mit einer gerundeten Rutschbahn. Im unteren Bereich der Rutsche ist der Winkel der Rutschbahn mehr als 135° zur Ansaugfläche. Die Rutsche kann z. B. über eine Schwenkachse 8) geschwenkt werden. Die Ansaugstelle wird vorteilhaft beim Verschwenken in eine ideale Position mit hoher Ansaugung verfahren. Der Winkel kann auch zur Tangente einer Siebtrommel im Punkt des bevorzugten Auftreffens der Fasern sein.

Claims (7)

  1. Vliesbildemaschine, bei der ein Vlies durch Ansaugen von Fasern zu einer Siebfläche gebildet wird und die Fasern auch durch ein Aushebeelement aus der faserführenden Walze ausgehoben werden, dadurch gekennzeichnet, dass Fasern nach dem Aushebebereich des Aushebeelements auf eine Rutschbahn zu der Ansaugstelle geleitet werden und die Rutschfläche im Verlauf einen Winkel von 130 - 180° zur Transportrichtung des Siebes an der Ansaugstelle aufweist.
  2. Vliesbildemaschine nach Anspruch 1) dadurch gekennzeichnet, dass die Transportrichtung der Richtung der Tangente einer Siebtrommel an dem Punkt entspricht, an dem die meisten Fasern angesaugt werden.
  3. Vliesbildemaschine nach Anspruch 1) oder 2) dadurch gekennzeichnet, dass der Winkel der Rutschbahn verstellbar ausgeführt ist.
  4. Vliesbildemaschine nach Anspruch 3) dadurch gekennzeichnet, dass der Winkel aufgrund von Messwerten MD/ CD verstellt wird.
  5. Vliesbildemaschine nach einem der Ansprüche 1) - 4) dadurch gekennzeichnet, dass der Ansaugbereich korrespondierend mit der Rutschenstellung verstellt wird.
  6. Vliesbildemaschine nach einem der Ansprüche 1) - 5) dadurch gekennzeichnet, dass die Rutschbahn gekantet oder gerundet ausgeführt wird.
  7. Vliesbildemaschine nach einem der Ansprüche 1) - 6) dadurch gekennzeichnet, dass auf der Rutschfläche ein Luftstrom erzeugt wird, um das Rutschen zu verbessern.
EP17185273.4A 2016-08-10 2017-08-08 Vliesbildemaschine Active EP3282046B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016009679.9A DE102016009679A1 (de) 2016-08-10 2016-08-10 Vliesbildemaschine

Publications (2)

Publication Number Publication Date
EP3282046A1 true EP3282046A1 (de) 2018-02-14
EP3282046B1 EP3282046B1 (de) 2021-03-24

Family

ID=59699472

Family Applications (1)

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EP17185273.4A Active EP3282046B1 (de) 2016-08-10 2017-08-08 Vliesbildemaschine

Country Status (4)

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EP (1) EP3282046B1 (de)
CN (1) CN107723928B (de)
DE (1) DE102016009679A1 (de)
ES (1) ES2870104T3 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020001584A1 (de) 2020-03-11 2021-09-16 Hubert Hergeth Parallelabwurf

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019005550A1 (de) 2019-08-07 2021-02-11 Hubert Hergeth Saugwinkel

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2140552A1 (de) * 1970-08-13 1972-05-25 Curlator Corp., Macedon, N.Y. (V.StA.) Vorrichtung zur Übergabe und Verdichtung von Fasermaterial
US3918126A (en) * 1974-07-12 1975-11-11 Rando Machine Corp Method and machine for forming random fiber webs
US4004323A (en) * 1975-04-10 1977-01-25 Scott Paper Company Method of forming a nonwoven fibrous web
US4097965A (en) * 1976-08-17 1978-07-04 Scott Paper Company Apparatus and method for forming fibrous structures comprising predominantly short fibers
DE2842157A1 (de) * 1977-09-28 1979-04-05 Arnold Louis Mahler Verfahren und vorrichtung zur herstellung pneumatisch abgelegter faservliesbahnen
EP0093585A2 (de) * 1982-04-29 1983-11-09 Chicopee Verfahren und Vorrichtung zur Herstellung, mit hoher Geschwindigkeit, von gleichmässigen Faservliesen

Family Cites Families (16)

* Cited by examiner, † Cited by third party
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FR1479960A (fr) * 1965-05-17 1967-05-05 Du Pont Procédé de préparation de feuilles fibreuses à fibres généralement debout
US3932915A (en) 1974-08-09 1976-01-20 E. I. Du Pont De Nemours & Company Air-laydown apparatus for forming uniform webs of staple fibers
US4130915A (en) * 1977-09-19 1978-12-26 Scott Paper Company Carding operation for forming a fibrous structure
CH685126A5 (fr) * 1991-04-04 1995-03-31 Isover S A Crêpeuse.
AT398438B (de) * 1992-07-17 1994-12-27 Kuehnsdorfer Gmbh Verfahren zur strömungsdynamischen herstellung von verformbaren fasermatten hoher reissfestigkeit sowie vorrichtung zu deren herstellung
JPH08134761A (ja) * 1994-11-07 1996-05-28 Mitsui Petrochem Ind Ltd 不織布とその製造方法
US5778494A (en) * 1995-12-08 1998-07-14 E. I. Du Pont De Nemours And Company Method and apparatus for improving the air flow through an air duct in a dry fiber web forming system
JP4233181B2 (ja) * 1999-09-30 2009-03-04 新日本石油株式会社 横配列ウェブの製造方法および製造装置
AU2003276243A1 (en) * 2002-06-13 2003-12-31 Milliken Industrials Limited Method of making a mat
DE10255518B4 (de) 2002-11-27 2007-10-31 ERKO Trützschler GmbH Krempel mit Luft-Teiler
US7780903B2 (en) * 2005-06-01 2010-08-24 Kimberly-Clark Worldwide, Inc. Method of making fibers and nonwovens with improved properties
AT502643B1 (de) * 2005-11-02 2007-05-15 Angleitner Helmut Dipl Ing Einrichtung zum ablagern von in einem gasstrom transportierbaren fasern
DE102006041131A1 (de) * 2006-09-01 2008-03-06 Oerlikon Textile Gmbh & Co. Kg Verfahren und Vorrichtung zur Extrusion synthetischer Fasern
CN101831763B (zh) * 2010-05-27 2012-02-29 东莞市威骏不织布有限公司 一种不织布成型设备
BR112013009052B1 (pt) * 2010-10-19 2019-12-17 N R Spuntech Ind Ltd processo em linha para a fabricação de um pano não tecido, pasta tixotrópica, e, pano não tecido
CN102926133B (zh) * 2012-11-16 2016-04-13 江苏九鼎新材料股份有限公司 一步法成型玻璃纤维连续原丝毡生产工艺

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2140552A1 (de) * 1970-08-13 1972-05-25 Curlator Corp., Macedon, N.Y. (V.StA.) Vorrichtung zur Übergabe und Verdichtung von Fasermaterial
US3918126A (en) * 1974-07-12 1975-11-11 Rando Machine Corp Method and machine for forming random fiber webs
US4004323A (en) * 1975-04-10 1977-01-25 Scott Paper Company Method of forming a nonwoven fibrous web
US4097965A (en) * 1976-08-17 1978-07-04 Scott Paper Company Apparatus and method for forming fibrous structures comprising predominantly short fibers
DE2842157A1 (de) * 1977-09-28 1979-04-05 Arnold Louis Mahler Verfahren und vorrichtung zur herstellung pneumatisch abgelegter faservliesbahnen
EP0093585A2 (de) * 1982-04-29 1983-11-09 Chicopee Verfahren und Vorrichtung zur Herstellung, mit hoher Geschwindigkeit, von gleichmässigen Faservliesen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020001584A1 (de) 2020-03-11 2021-09-16 Hubert Hergeth Parallelabwurf

Also Published As

Publication number Publication date
ES2870104T3 (es) 2021-10-26
CN107723928B (zh) 2022-03-15
DE102016009679A1 (de) 2018-02-15
EP3282046B1 (de) 2021-03-24
CN107723928A (zh) 2018-02-23

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