WO2008098912A1 - Fleece forming machine - Google Patents

Fleece forming machine Download PDF

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Publication number
WO2008098912A1
WO2008098912A1 PCT/EP2008/051635 EP2008051635W WO2008098912A1 WO 2008098912 A1 WO2008098912 A1 WO 2008098912A1 EP 2008051635 W EP2008051635 W EP 2008051635W WO 2008098912 A1 WO2008098912 A1 WO 2008098912A1
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WO
WIPO (PCT)
Prior art keywords
roller
opening
fibers
machine according
web
Prior art date
Application number
PCT/EP2008/051635
Other languages
German (de)
French (fr)
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WO2008098912A9 (en
Inventor
Hubert Hergeth
Original Assignee
Hubert Hergeth
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 Hubert Hergeth filed Critical Hubert Hergeth
Publication of WO2008098912A1 publication Critical patent/WO2008098912A1/en
Publication of WO2008098912A9 publication Critical patent/WO2008098912A9/en

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Classifications

    • 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
    • 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
    • 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
    • D04H1/72—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 randomly arranged
    • 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
    • D04H1/72—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 randomly arranged
    • D04H1/732—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 randomly arranged by fluid current, e.g. air-lay
    • 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)

Definitions

  • Airlaid machines For over 50 years in the non-wovens industry so-called Airlaid machines have been used to form a non-oriented fiber web.
  • the fibers are fed to a fast-rotating opening roller and detached from the opening roller with an air flow across the width of the roller and attracted by an air flow to a screen drum or a screen belt, z. B. DE 39 013 13.
  • For better resolution of the opening roller more opening rollers are arranged upstream of a roll card.
  • DE 4418248 shows at the separation point a worker roller to deliver the flakes evenly.
  • the worker roller is running slowly, and the teeth of the clothing are in working position. Between the worker roller and the opening roller, an air stream releases the fibers from the opening roller.
  • DE 4430500 proposes that the opening roller be followed by another roller into which the fibers are thrown from the opening roller in order to take up a random position in the second roller and then from the second roller by means of a roller
  • Air flow which passes between the opening roller and the Vorrwalze to be thrown off.
  • the effect of such a roller is described in Chemical fibers / textile industry July / August 1984, page 523.
  • the whirling roller rotates at approximately the same speed as the opening roller to ensure combing of the fibers in the whirling roller.
  • 8370 a similar device
  • the set has a positive breast angle of 0 - 16 degrees.
  • the object of the invention is to improve the detachment of the fibers from the opening drum and to produce a smoother fleece with less air. According to the invention, this is done by a roller which cooperates with the last opening roller. The location of the opening roller can also assume a pure transfer roller without opening. This additional roller drives the fibers out of the opening roller directly without being held on the expulsion roller.
  • Austreibewalze is provided with a surface that is unable to hold the fibers through a Garnsturdraht.
  • the surface can be designed as a brush, as approximately axially parallel grooves, flat iron, plastic or a garnish with a clearly negative breast angle.
  • the expelled fibers are entrained by air streams which flow below the opening roller and / or the expelling roller to the suction zone of the web formation. In this way, no high air velocities at the opening or centrifugal roll more necessary.
  • the suction power is lower and the suction zone can be made larger. Flat web formation zone with slower speed, the "shingles effect" is reduced.
  • the diameter of the expelling roller may be greater than, equal to, or smaller than that of the opening roller; decisive is the at least 20% higher peripheral speed.
  • Drawing 1 shows schematically a machine according to the invention.
  • a fiber mat 1 is fed with a feed device 2 consisting of a conveyor belt and feed rollers the opening part.
  • the feeder can also be formed by a feed roller and trough.
  • the fibers are detected by the clothing of the opening roll 3 and further dissolved along carding elements 4. Instead of the carding elements garnished rolls can dissolve the fibers.
  • the fibers are expelled from the clothing of the opening roller.
  • the Austreibewalze is equipped with bristles 6.
  • the fibers are picked up by air 8 flowing along the expulsion roller and / or flowing along the opening roller and along its panel and formed on a screen 12 in the web forming zone 11 to form a web 15.
  • the sieve belt is moved by deflection rollers 16 and by support elements 14 in
  • the nonwoven image area is limited by air baffles 10.
  • the fleece can also be formed on a sieve drum. The whole oh built at an angle to the horizontal

Abstract

Disclosed is a fleece forming machine in which the fibers are removed from the opening cylinder by means of an expelling cylinder and are sucked onto a moving sieve surface in order to form the fleece. The expelling cylinder does not retain the fibers in a card clothing.

Description

VLIESBILDEMASCHINE Webber
Seit über 50 Jahren werden in der Non-Wovens Industrie so genannte Airlaid-Maschinen zur Bildung einer nicht orientierten Faserbahn verwendet. Hierbei werden die Fasern einer schnellrotierenden Öffnungswalze zugespeist und von der Öffnungswalze mit einem Luftstrom über die Breite von der Walze abgelöst und von einem Luftstrom auf eine Siebtrommel oder ein Siebband angezogen, z. B. DE 39 013 13. Zur besseren Auflösung sind der Öffnungswalze weitere Öffnungswalzen ähnlich einer Walzenkrempel vorgeordnet.For over 50 years in the non-wovens industry so-called Airlaid machines have been used to form a non-oriented fiber web. In this case, the fibers are fed to a fast-rotating opening roller and detached from the opening roller with an air flow across the width of the roller and attracted by an air flow to a screen drum or a screen belt, z. B. DE 39 013 13. For better resolution of the opening roller more opening rollers are arranged upstream of a roll card.
Die DE 4418248 zeigt am Ablösepunkt eine Arbeiterwalze, um die Flocken gleichmäßig abzugeben. Die Arbeiterwalze läuft langsam, und die Zähne der Garnitur stehen in Arbeits- Stellung. Zwischen Arbeiterwalze und Öffnungswalze löst ein Luftstrom die Fasern aus der Öffnungswalze. Die DE 4430500 schlägt vor, der Öffnungswalze eine weitere Walze nachzuschalten, in die die Fasern von der Öffnungswalze geschleudert werden, um eine Wirrlage in der zweiten Walze einzunehmen und dann von der zweiten Walze mittels einesDE 4418248 shows at the separation point a worker roller to deliver the flakes evenly. The worker roller is running slowly, and the teeth of the clothing are in working position. Between the worker roller and the opening roller, an air stream releases the fibers from the opening roller. DE 4430500 proposes that the opening roller be followed by another roller into which the fibers are thrown from the opening roller in order to take up a random position in the second roller and then from the second roller by means of a roller
Luftstroms, der zwischen der Öffnungswalze und der Wirrwalze hindurchtritt, abgeschleudert zu werden. Die Wirkung solch einer Wirrwalze wird in Chemiefasern/ Textilindustrie Juli/ August 1984, Seite 523 beschrieben. Die Wirrwalze rotiert in etwa mit der gleichen Geschwindigkeit wie die Öffnungswalze, um ein Einkämmen der Fasern in der Wirrwalze zu gewährleisten. )8370 wird eine ähnliche Vorrichtung )bei die Fasern von der Öffnungswalze auf eine ώerstreuroiie transferiert werden, und von der Zerstreurolle später in einen Luftstrom abgeworfen werden. Die Garnitur hat einen positiven Brustwinkel von 0 - 16 Grad.Air flow, which passes between the opening roller and the Vorrwalze to be thrown off. The effect of such a roller is described in Chemical fibers / textile industry July / August 1984, page 523. The whirling roller rotates at approximately the same speed as the opening roller to ensure combing of the fibers in the whirling roller. ) 8370, a similar device) will be transferred from the opening roller to a tube at the fibers and later ejected from the dispersing roller into a stream of air. The set has a positive breast angle of 0 - 16 degrees.
Alle vorgeschlagenen Verbesserungen der reinen Luftabnahme von der Öffnungswalze haben in der Praxis keine Anwendung gefunden, da die beschriebenen Ausführungsformen das Ablöseproblem nur von der Öffnungswalze auf die hinzugekommene Walze verlegen.All proposed improvements of the pure air removal from the opening roller have not been applied in practice, since the described embodiments move the separation problem only from the opening roller to the added roller.
Aufgabe der Erfindung ist es, die Ablösung der Fasern von der Öffnungstrommel zu verbessern und mit weniger Luft ein gleichmäßigeres Vlies zu erzeugen. Erfindungsgemäß geschieht dies durch eine Walze, die mit der letzten Öffnungswalze zusammenarbeitet. Die Stelle der Öffnungswalze kann auch eine reine Transferwalze ohne Öffnung annehmen. Diese zusätzliche Walze treibt die Fasern aus der Öffnungswalze direkt aus, ohne dass sie auf der Austreibewalze gehalten werden. DieThe object of the invention is to improve the detachment of the fibers from the opening drum and to produce a smoother fleece with less air. According to the invention, this is done by a roller which cooperates with the last opening roller. The location of the opening roller can also assume a pure transfer roller without opening. This additional roller drives the fibers out of the opening roller directly without being held on the expulsion roller. The
Austreibewalze ist mit einer Oberfläche versehen, die die Fasern nicht durch einen Garnsturdraht zu halten vermag. Die Oberfläche kann als Bürste, als etwa achsparallele Nuten, Flacheisen, Kunststoff oder eine Garnitur mit deutlich negativem Brustwinkel ausgeführt sein. DieAustreibewalze is provided with a surface that is unable to hold the fibers through a Garnsturdraht. The surface can be designed as a brush, as approximately axially parallel grooves, flat iron, plastic or a garnish with a clearly negative breast angle. The
Oberflächengeschwindigkeit der Zusatzwalze ist deutlich schneller als die der Öffnungswalze, mindestens zusätzlich 20 Prozent. Die ausgetriebenen Fasern werden durch Luftströme mitgerissen, die unterhalb der Öffnungswalze und/ oder der Austreibewalze zur Ansaugezone der Vliesbildung strömen. Auf diese Weise sind keine hohen Luftgeschwindigkeiten an der Öffnungs- oder Zentrifugalwalze mehr nötig. Die Absaugleistung ist geringer und es kann die Ansaugzone größer gewählt werden. flächige Vliesbildungszone mit langsamer sschwindigkeit wird der "Schindeleffekt" gemindert. Es können aber ebenso die Fasern in einen engen Schacht gezogen werden und eine Vliesbildung mit hoher Luftdurchströrageschwindigkeit durchgeführt werden. Die Erfindung wird anhand der Zeichnung 1 erläutert.Surface speed of the additional roller is significantly faster than that of the opening roller, at least an additional 20 percent. The expelled fibers are entrained by air streams which flow below the opening roller and / or the expelling roller to the suction zone of the web formation. In this way, no high air velocities at the opening or centrifugal roll more necessary. The suction power is lower and the suction zone can be made larger. Flat web formation zone with slower speed, the "shingles effect" is reduced. However, it is also possible to pull the fibers into a narrow shaft and to carry out nonwoven formation with a high air flow rate. The invention will be explained with reference to the drawing 1.
Der Durchmesser der Austreibewalze kann größer, gleich oder kleiner als der der Öffnungswalze sein; entscheidend ist die mindestens 20 % höhere Umfangsgeschwindigkeit.The diameter of the expelling roller may be greater than, equal to, or smaller than that of the opening roller; decisive is the at least 20% higher peripheral speed.
Zeichnung 1 zeigt schematisch eine Maschine nach der Erfindung .Drawing 1 shows schematically a machine according to the invention.
Eine Fasermatte 1 wird mit einer Zuführeinrichtung 2 bestehend aus einem Transportband und Speisewalzen dem Öffnungsteil zugespeist. Die Zuführeinrichtung kann auch durch eine Speisewalze und Mulde gebildet werden. Die Fasern werden von der Garnitur der Offnungswalze 3 erfasst und entlang von Kardierelementen 4 weiter aufgelöst. Statt der Kardierelemente können auch garnierte Walzen die Fasern auflösen. Am engsten Punkt 5 zwischen dem Schlagkreis der Öffnungswalze und dem äußersten Umfang der Austreibewalze 7 werden die Fasern aus der Garnitur der Öffnungswalze ausgetrieben. Die Austreibewalze ist mit Borsten 6 bestückt. Die Fasern werden durch Luft 8, die an der Austreibewalze entlang strömt und/ oder an der Öffnungswalze und deren Verkleidung entlang strömt, erfasst und auf einem Sieb 12 in der Vliesbildungszone 11 zu einem Vlies 15 geformt . Das Siebband wird durch Umlenkrollen 16 bewegt und durch Stützelemente 14 imA fiber mat 1 is fed with a feed device 2 consisting of a conveyor belt and feed rollers the opening part. The feeder can also be formed by a feed roller and trough. The fibers are detected by the clothing of the opening roll 3 and further dissolved along carding elements 4. Instead of the carding elements garnished rolls can dissolve the fibers. At the narrowest point 5 between the beating circle of the opening roller and the outermost circumference of the expelling roller 7, the fibers are expelled from the clothing of the opening roller. The Austreibewalze is equipped with bristles 6. The fibers are picked up by air 8 flowing along the expulsion roller and / or flowing along the opening roller and along its panel and formed on a screen 12 in the web forming zone 11 to form a web 15. The sieve belt is moved by deflection rollers 16 and by support elements 14 in
Saugbereich abgestützt. Der Vliesbildebereich wird durch Luftleitbleche 10 begrenzt. Statt des Siebbandes kann das Vlies auch auf einer Siebtrommel gebildet werden. Die gesamte ach in einem Winkel zur Horizontalen gebaut Suction area supported. The nonwoven image area is limited by air baffles 10. Instead of the sieve belt, the fleece can also be formed on a sieve drum. The whole oh built at an angle to the horizontal

Claims

Patentansprücheclaims
1. Vliesbildemaschine, bei der die Fasern mittels einer Speisevorrichtung einer oder mehrerer Öffnungswalzen zugeführt werden und das Vlies durch Ansaugen an eine bewegte Siebfläche gebildet wird dadurch gekennzeichnet, dass eine Austreibewalze die Fasern, aus der letzten Öffnungs- oder Transferwalze heraustreibt und direkt zur Vliesbildung abschleudert.1. web forming machine, wherein the fibers are fed by means of a feed device of one or more opening rollers and the web is formed by suction on a moving screen surface, characterized in that a Austreibewalze the fibers, drives out of the last opening or transfer roller and spun directly to the web formation ,
2. Maschine nach Anspruch 1, dadurch gekennzeichnet, dass die Austreibewalze eine um mindestens 20 Prozent höhere2. Machine according to claim 1, characterized in that the Austreibewalze a higher by at least 20 percent
Umfanggeschwindigkeit als die mit ihr zusammenwirkendePeripheral speed than the cooperating with it
Öffnungswalze hat.Opening roller has.
3. Maschine nach einem der Ansprüche 1 - 2, dadurch gekennzeichnet, dass die Oberfläche der Austreibewalze so beschaffen ist, dass keine Fasern anhaften.3. Machine according to one of claims 1 - 2, characterized in that the surface of the expelling roller is such that no fibers adhere.
4. Maschine nach einem der Ansprüche 1 - 3 , dadurch gekennzeichnet, dass die Oberfläche der Austreibewalze Borsten, Leisten, Nuten oder eine Garnitur mit einem negativen Brustwinkel von mindestens 10° negativ aufweist. zh einem der Ansprüche 1 - 4 , ekennzeich.net, dass die Luft zur Bildung des Vlieses hauptsächlich entlang der Oberfläche oder der Muldenaußenseite der Öffnungs- und/ oder Austreibewalze entgegen der Drehrichtung der jeweiligen Walze zur Vliesbildungszone zuströmt.4. Machine according to one of claims 1 - 3, characterized in that the surface of the expulsion roller bristles, strips, grooves or a set having a negative breast angle of at least 10 ° negative. zh one of claims 1-4, ekennzeich.net that the air flows to form the fleece mainly along the surface or the trough outer side of the opening and / or Austreibewalze against the direction of rotation of the respective roller to the web forming zone.
6. Maschine nach einem der Ansprüche 1 - 5, dadurch gekennzeichnet, dass keine Zuluft zur Bildung des Vlieses entlang des Ablösebereichs der Fasern von der Öffnungs- oder Transferwalze strömt.6. Machine according to one of claims 1-5, characterized in that no supply air for forming the nonwoven along the separation region of the fibers flows from the opening or transfer roller.
7. Maschine nach einem der Ansprüche 1 - 6, dadurch gekennzeichnet, dass keine Luft von außerhalb der Vliesbildemaschine zwischen der Öffnungsoder Transferwalze und der Auflösewalze strömt.7. Machine according to one of claims 1-6, characterized in that no air flows from outside the web forming machine between the opening or transfer roller and the opening roller.
8. Maschine nach einem der Ansprüche 1 - I1 dadurch gekennzeichnet, dass die Fasern von der Öffnungs- oder Transferwalze nicht zur Austreibewalze transferiert werden. 8. Machine according to one of claims 1 - I 1, characterized in that the fibers are not transferred from the opening or transfer roller to the expulsion roller.
PCT/EP2008/051635 2007-02-12 2008-02-12 Fleece forming machine WO2008098912A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007007374.9 2007-02-12
DE102007007374A DE102007007374A1 (en) 2007-02-12 2007-02-12 Webber

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Publication Number Publication Date
WO2008098912A1 true WO2008098912A1 (en) 2008-08-21
WO2008098912A9 WO2008098912A9 (en) 2009-01-22

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Application Number Title Priority Date Filing Date
PCT/EP2008/051635 WO2008098912A1 (en) 2007-02-12 2008-02-12 Fleece forming machine

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WO (1) WO2008098912A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3020643B1 (en) * 2014-05-05 2019-06-14 Hubert Hergeth TRAINING BY LEVEUSE
DE102019005549A1 (en) * 2019-08-07 2021-02-11 Hubert Hergeth Air baffles

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2619151A (en) * 1951-02-12 1952-11-25 Gustin Bacon Mfg Co Method and apparatus for manufacturing fibrous mats
GB880698A (en) * 1958-12-03 1961-10-25 Tmm Research Ltd Improvements in apparatus for use in processing textile fibres
DE4418248A1 (en) * 1993-06-18 1994-12-22 Fehrer Ernst Device for producing a nonwoven fabric
US6195842B1 (en) * 1995-12-08 2001-03-06 E. I. Du Pont De Nemours And Company Feeding carded fiber to an airlay

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE512691C (en) * 1927-06-19 1930-11-15 Ludwig Schorsch Express card
AT246619B (en) * 1963-08-02 1966-04-25 Fehrer Ernst Device for the production of thin fleeces or piles from hair or fiber material
DE3901313A1 (en) 1989-01-18 1990-07-19 Hollingsworth Gmbh FLEECE CREAM
AT396374B (en) * 1992-03-24 1993-08-25 Fehrer Ernst Fleece disintegrating and fibre collecting appts. - for prodn. of low density bulky nonwoven material
DE4430500A1 (en) 1994-08-27 1996-02-29 Hollingsworth Gmbh Card and method for producing an aerodynamically formed pile of fibers

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2619151A (en) * 1951-02-12 1952-11-25 Gustin Bacon Mfg Co Method and apparatus for manufacturing fibrous mats
GB880698A (en) * 1958-12-03 1961-10-25 Tmm Research Ltd Improvements in apparatus for use in processing textile fibres
DE4418248A1 (en) * 1993-06-18 1994-12-22 Fehrer Ernst Device for producing a nonwoven fabric
US6195842B1 (en) * 1995-12-08 2001-03-06 E. I. Du Pont De Nemours And Company Feeding carded fiber to an airlay

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DE102007007374A1 (en) 2008-08-14

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