EP2025789A1 - Facility and method for needling a fleece web - Google Patents

Facility and method for needling a fleece web Download PDF

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Publication number
EP2025789A1
EP2025789A1 EP07015722A EP07015722A EP2025789A1 EP 2025789 A1 EP2025789 A1 EP 2025789A1 EP 07015722 A EP07015722 A EP 07015722A EP 07015722 A EP07015722 A EP 07015722A EP 2025789 A1 EP2025789 A1 EP 2025789A1
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EP
European Patent Office
Prior art keywords
needle
nonwoven web
eccentric
installation according
machines
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
EP07015722A
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German (de)
French (fr)
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EP2025789B1 (en
Inventor
Joachim Dr.-Ing. Leger
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.)
Oskar Dilo Maschinenfabrik KG
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Oskar Dilo Maschinenfabrik KG
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Application filed by Oskar Dilo Maschinenfabrik KG filed Critical Oskar Dilo Maschinenfabrik KG
Priority to AT07015722T priority Critical patent/ATE485414T1/en
Priority to DE502007005419T priority patent/DE502007005419D1/en
Priority to EP07015722A priority patent/EP2025789B1/en
Priority to US12/186,576 priority patent/US7975353B2/en
Priority to CN200810135459.7A priority patent/CN101363165B/en
Publication of EP2025789A1 publication Critical patent/EP2025789A1/en
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Publication of EP2025789B1 publication Critical patent/EP2025789B1/en
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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
    • D04H18/00—Needling machines
    • D04H18/02—Needling machines with needles
    • 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
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres

Definitions

  • the invention relates to a system and a method for needling a nonwoven web with a plurality of needle machines arranged one behind the other.
  • Such a plant is for example from the EP 1 644 565 B1 known.
  • this special system several double needle machines are arranged one behind the other. With this system, it is possible to produce patterns or other stitch patterns by adjusting the feed of the nonwoven web and the needle assembly in the various needle boards. The problem is that in each case the needle boards of the individual needling machines must be replaced to produce different stitch patterns.
  • the invention has the object of developing a system and a method for needling a nonwoven web so that different needle images are to produce in a nonwoven web in a flexible and very simple manner.
  • the system for needling a nonwoven web has a plurality of needle machines arranged one behind the other, each with at least one needle bar and a pair of feed rollers and take-off rollers.
  • the needle machines are movable in the conveying direction of the nonwoven web along a guide and lockable to each other in arbitrarily determinable distances.
  • the inventive method for changing the Einich pattern when needling a nonwoven web which is passed through several in the conveying direction of the nonwoven web successively arranged needle machines, the mutual distance of the needle machines along a guide in the conveying direction of the nonwoven web is adjusted and the needle machines are then locked.
  • each needle machine has two eccentrics whose eccentric shafts have the same eccentricities and are coupled together for synchronous movements.
  • the mounted on the eccentric eccentric followers of which at least one carries at least one needle bar, interconnected by at least one movable coupling element.
  • the eccentric followers are formed as an integral unit and the coupling element is formed by a series of parallel juxtaposed slots in the integral unit.
  • the eccentric shafts are arranged at the same height next to each other and the coupling element between the eccentric followers is only in the plane defined by the axes of the eccentric waves plane perpendicular to the shaft axes yielding, transversely to the said plane but stiff.
  • a simple embodiment of the system is realized in that the guide is formed by two rails.
  • a secure and arbitrarily releasable attachment of each needle machine can be achieved by a clamping device which locks the needle machine frictionally on the rails.
  • each needle machine stands on wheels which serve to move along the guide, and the system comprises a control device which controls stepping motors which serve for the controlled movement of the wheels.
  • a control device which controls stepping motors which serve for the controlled movement of the wheels.
  • Fig. 1 shows a schematic view of a system according to the invention for needling a nonwoven web with a plurality of needle machines 1 arranged behind one another.
  • the needle machines 1 are preferably mounted on wheels 16, which are movable along a guide 14, which is formed in the present example as a rail. At least one pair of wheels 16 of each needle machine 1 is driven by a stepper motor, which is controlled by a control device 20.
  • An automatic arrangement of the various needle machines 1 in the respective desired position via the control device 20 is possible. This creates the opportunity to produce different needle images in a particularly flexible and simple way. Moreover, this embodiment is particularly advantageous because maintenance and repair work on each needle machine 1 are very easily possible due to the simple displacement of the needle machines.
  • Fig. 2 shows in section a preferred, simply constructed needle machine 1 for use in the system according to the invention. It can be seen a machine frame, in the head next to each other at the same height two eccentric shafts 2 are rotatably mounted, which are driven in rotation in the same direction, which is indicated by corresponding arrows.
  • the eccentric shafts 2 each have eccentric 3, whose eccentricities have the same size.
  • a plate-shaped machine element 4 which is displaced by the latter and is rotatably mounted, which is called here "eccentric follower" and to which a respective needle bar 5 is fastened.
  • the two eccentric followers 4 are formed here as an integral unit.
  • Each needle bar 5 carries a needle board 6, which is equipped with needles 7.
  • each Stichunterlagen 8 over which a nonwoven fiber web 9 is to be tapped, which is transported in operation by means stored in the machine frame, driven feed rollers 10 and take-off rollers 11 through the needle machine.
  • the unit has a lateral extension arm 12 connecting the two eccentric followers 4, in which a plurality of slits arranged substantially parallel to one another are arranged, which extend parallel to the vertical stroke, which adjoins the eccentric followers 4 is caused by the eccentric 3.
  • This plurality of slots forms a resilient coupling element 13 within the boom 12, which in the plane which is spanned by the axes of the eccentric shafts 2, is yielding, but is perpendicular thereto rigid.
  • the two eccentric 4 are therefore in principle in the horizontal direction against each other movable, so no jamming can occur on the bearings of the eccentric shafts 2.
  • the eccentric follower 4 can yield any possible bearing clamps by slightly tilting the twin arrangement formed by the two eccentric followers 4 in connection with the elastic coupling on the coupling element 13.
  • the slots that form the coupling element 13, can be easily prepared in the eccentric 4 forming plate by milling or sawing.
  • both eccentric followers 4 follow the orbital motion of the eccentric 3 congruently, so that the tips of the needles 7 describe a circular path lying in the plane of the drawing. They are in the drawing in the left-directed movement component of the eccentric 3 stabbed into the nonwoven fabric 9 to be needled, but pulled out of the nonwoven fabric 9 in the rightward movement component.
  • the needles 7 can always properly pierce into the non-woven fabric 9 to be needled from above and do not tilt during their movement. Clamping on the eccentric shafts 2 can not occur due to the movable coupling.
  • needling machines 1 which ensure a feed, including double needle machines in which above and below the nonwoven web 9 in the machine frame in each case at least one needle assembly of needle-board, needle bar and associated drive means is arranged.
  • Fig. 3 shows examples of simple needle images with punctures 15, which can be generated by the inventive system.
  • Fig. 3a is an example of a needle image that was generated after passing through a needle machine 1.
  • Fig. 3b and 3c show needle pictures on the basis of Fig. 3a after the passage of a second needle machine 1.
  • the feed was 45 mm per vertical stroke of the needle machine
  • the puncture density at Fig. 3a is at about 13 punctures per cm 2
  • Fig. 3b and 3c at approx. 26 punctures per cm 2 .

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Knitting Machines (AREA)

Abstract

A nonwoven web needling device comprises a series of needle looms (1) having a needle bar, a pair of infeed rollers, and a pair of outfeed rollers, where the needle looms can be moved along a guide (14) in the transport direction of the nonwoven web and can be locked in place at any desired distance from each other. An independent claim is included for a method for changing a stitch pattern during needling of a nonwoven web.

Description

Die Erfindung bezieht sich auf eine Anlage und ein Verfahren zur Vernadelung einer Vliesbahn mit mehreren hintereinander angeordneten Nadelmaschinen.The invention relates to a system and a method for needling a nonwoven web with a plurality of needle machines arranged one behind the other.

Eine solche Anlage ist beispielsweise aus der EP 1 644 565 B1 bekannt. In dieser speziellen Anlage sind mehrere Doppelnadelmaschinen hintereinander angeordnet. Mit dieser Anlage ist es möglich, durch Einstellung des Vorschubs der Vliesbahn sowie der Nadelanordnung in den verschiedenen Nadelbrettern Musterungen oder andere Stichbilder herzustellen. Problematisch ist, dass zur Erzeugung unterschiedlicher Stichbilder jeweils die Nadelbretter der einzelnen Nadelmaschinen ausgetauscht werden müssen.Such a plant is for example from the EP 1 644 565 B1 known. In this special system several double needle machines are arranged one behind the other. With this system, it is possible to produce patterns or other stitch patterns by adjusting the feed of the nonwoven web and the needle assembly in the various needle boards. The problem is that in each case the needle boards of the individual needling machines must be replaced to produce different stitch patterns.

Der Erfindung liegt die Aufgabe zugrunde, eine Anlage und ein Verfahren zur Vernadelung einer Vliesbahn derart weiterzubilden, dass unterschiedliche Nadelbilder in einer Vliesbahn auf flexible und besonders einfache Weise herzustellen sind.The invention has the object of developing a system and a method for needling a nonwoven web so that different needle images are to produce in a nonwoven web in a flexible and very simple manner.

Diese Aufgabe wird durch die im Anspruch 1 bzw. Anspruch 9 angegebenen Merkmale gelöst.This object is achieved by the features specified in claim 1 and claim 9.

Erfindungsgemäß weist die Anlage zur Vernadelung einer Vliesbahn mehrere hintereinander angeordnete Nadelmaschinen mit jeweils wenigstens einem Nadelbalken und einem Paar von Zuführwalzen und Abzugswalzen auf. Dabei sind die Nadelmaschinen in Förderrichtung der Vliesbahn entlang einer Führung beweglich und in beliebig bestimmbaren Abständen zueinander arretierbar.According to the invention, the system for needling a nonwoven web has a plurality of needle machines arranged one behind the other, each with at least one needle bar and a pair of feed rollers and take-off rollers. The needle machines are movable in the conveying direction of the nonwoven web along a guide and lockable to each other in arbitrarily determinable distances.

Beim erfindungsgemäßen Verfahren zum Verändern des Einstichmusters beim Vernadeln einer Vliesbahn, die durch mehrere in Förderrichtung der Vliesbahn hintereinander angeordnete Nadelmaschinen geleitet wird, wird der gegenseitige Abstand der Nadelmaschinen entlang einer Führung in Förderrichtung der Vliesbahn verstellt und die Nadelmaschinen werden anschließend arretiert.In the inventive method for changing the Einich pattern when needling a nonwoven web, which is passed through several in the conveying direction of the nonwoven web successively arranged needle machines, the mutual distance of the needle machines along a guide in the conveying direction of the nonwoven web is adjusted and the needle machines are then locked.

Um bei hoher Effizienz der Anlage gleichzeitig die Kosten relativ gering zu halten, weist in einem einfachen, bevorzugten Aufbau jede Nadelmaschine zwei Exzenter auf, deren Exzenterwellen gleiche Exzentrizitäten aufweisen und für synchrone Bewegungen miteinander gekoppelt sind. Hierbei sind die auf den Exzentern gelagerten Exzenterfolger, von denen wenigstens einer wenigstens einen Nadelbalken trägt, durch wenigstens ein bewegliches Koppelelement miteinander verbunden.In order to keep the costs relatively low with high efficiency of the system at the same time, in a simple, preferred construction, each needle machine has two eccentrics whose eccentric shafts have the same eccentricities and are coupled together for synchronous movements. Here are the mounted on the eccentric eccentric followers, of which at least one carries at least one needle bar, interconnected by at least one movable coupling element.

In einer einfach herzustellenden Ausführungsform sind die Exzenterfolger als integrale Einheit ausgebildet und das Koppelelement ist durch eine Reihe sich parallel nebeneinander erstreckender Schlitze in der integralen Einheit gebildet.In an easily manufactured embodiment, the eccentric followers are formed as an integral unit and the coupling element is formed by a series of parallel juxtaposed slots in the integral unit.

Zur Vermeidung von Klemmungen an den Exzenterwellen sind die Exzenterwellen in gleicher Höhe nebeneinander angeordnet und das Koppelelement zwischen den Exzenterfolgern ist nur in der von den Achsen der Exzenterwellen aufgespannten Ebene senkrecht zu den Wellenachsen nachgiebig, quer zu der genannten Ebene aber steif.To avoid clamping on the eccentric shafts, the eccentric shafts are arranged at the same height next to each other and the coupling element between the eccentric followers is only in the plane defined by the axes of the eccentric waves plane perpendicular to the shaft axes yielding, transversely to the said plane but stiff.

Eine einfache Ausgestaltung der Anlage wird dadurch realisiert, dass die Führung durch zwei Schienen gebildet ist.A simple embodiment of the system is realized in that the guide is formed by two rails.

Eine sichere und beliebig lösbare Befestigung jeder Nadelmaschine erreicht man durch eine Klemmvorrichtung, welche die Nadelmaschine kraftschlüssig an den Schienen festlegt.A secure and arbitrarily releasable attachment of each needle machine can be achieved by a clamping device which locks the needle machine frictionally on the rails.

Vorzugsweise steht jede Nadelmaschine auf Rädern, die zur Bewegung entlang der Führung dienen, und die Anlage weist eine Steuervorrichtung auf, die Schrittmotoren steuert, welche zur gesteuerten Bewegung der Räder dienen. Hierdurch wird eine besonders genaue und an die jeweilige Anwendung angepasste Einstellung der Abstände der einzelnen Nadelmaschinen möglich.Preferably, each needle machine stands on wheels which serve to move along the guide, and the system comprises a control device which controls stepping motors which serve for the controlled movement of the wheels. As a result, a particularly accurate and adapted to the particular application adjustment of the distances of the individual needle machines is possible.

Die Erfindung wird nachfolgend unter Bezugnahme auf die Zeichnungen näher erläutert.

Fig. 1
ist eine schematische Ansicht der erfindungsgemäßen Anlage zur Vernadelung einer Vliesbahn mit mehreren hintereinander angeordneten Nadelmaschinen;
Fig. 2
ist eine Querschnittsansicht einer bevorzugten Ausführungsform einer Nadelmaschine zur Verwendung in der erfindungsgemäßen Anlage; und
Fig. 3
zeigt Beispiele von Nadelbildern, welche durch die erfindungsgemäße Anlage erzeugt werden können.
The invention will be explained in more detail with reference to the drawings.
Fig. 1
is a schematic view of the system according to the invention for needling a nonwoven web with a plurality of needle machines arranged one behind the other;
Fig. 2
Fig. 10 is a cross-sectional view of a preferred embodiment of a needle machine for use in the installation according to the invention; and
Fig. 3
shows examples of needle images which can be produced by the system according to the invention.

Fig. 1 zeigt in schematischer Ansicht eine erfindungsgemäße Anlage zur Vernadelung einer Vliesbahn mit mehreren hintereinander angeordneten Nadelmaschinen 1. Die Nadelmaschinen 1 sind vorzugsweise auf Rädern 16 gelagert, welche entlang einer Führung 14, die im vorliegenden Beispielsfall als Schiene ausgebildet ist, verfahrbar sind. Mindestens ein Paar von Rädern 16 einer jeden Nadelmaschine 1 wird dabei von einem Schrittmotor angetrieben, der jeweils von einer Steuervorrichtung 20 angesteuert wird. Eine Klemmvorrichtung 18, die beispielsweise von der Seite unter den oberen Rand der Schiene 14 greift, dient zur Arretierung einer jeden Nadelmaschine 1 auf der Führung 14. Hierdurch lassen sich die Abstände a, b, c zwischen den einzelnen Nadelmaschinen 1 beliebig und auf einfache Weise einstellen. Auch eine automatische Anordnung der verschiedenen Nadelmaschinen 1 in der jeweils gewünschten Position über die Steuervorrichtung 20 ist möglich. Hierdurch wird die Möglichkeit geschaffen, verschiedene Nadelbilder auf besonders flexible und einfache Weise zu erzeugen. Außerdem ist es diese Ausgestaltung besonders vorteilhaft, da Wartungs- und Reparaturarbeiten an jeder einzelnen Nadelmaschine 1 aufgrund des einfachen Verschiebens der Nadelmaschinen sehr leicht möglich sind. Fig. 1 shows a schematic view of a system according to the invention for needling a nonwoven web with a plurality of needle machines 1 arranged behind one another. The needle machines 1 are preferably mounted on wheels 16, which are movable along a guide 14, which is formed in the present example as a rail. At least one pair of wheels 16 of each needle machine 1 is driven by a stepper motor, which is controlled by a control device 20. A clamping device 18, which engages, for example, from the side under the upper edge of the rail 14, serves to lock each needle machine 1 on the guide 14. This allows the distances a, b, c between the needle machines 1 arbitrarily and easily to adjust. An automatic arrangement of the various needle machines 1 in the respective desired position via the control device 20 is possible. This creates the opportunity to produce different needle images in a particularly flexible and simple way. Moreover, this embodiment is particularly advantageous because maintenance and repair work on each needle machine 1 are very easily possible due to the simple displacement of the needle machines.

Fig. 2 zeigt im Ausschnitt eine bevorzugte, einfach aufgebaute Nadelmaschine 1 zur Verwendung in der erfindungsgemäßen Anlage. Man erkennt ein Maschinengestell, in dessen Kopf nebeneinander in gleicher Höhe zwei Exzenterwellen 2 drehbar gelagert sind, die in gleicher Richtung umlaufend angetrieben sind, was durch entsprechende Pfeile gekennzeichnet ist. Die Exzenterwellen 2 weisen jeweils Exzenter 3 auf, deren Exzentrizitäten gleiche Größe haben. Auf jedem Exzenter 3 ist ein von diesem in Bewegung versetztes, plattenförmiges Maschinenelement 4 drehbar gelagert, das hier "Exzenterfolger" genannt wird und an dem jeweils ein Nadelbalken 5 befestigt ist. Die beiden Exzenterfolger 4 sind hier als eine integrale Einheit ausgebildet. Jeder Nadelbalken 5 trägt ein Nadelbrett 6, das mit Nadeln 7 bestückt ist. Fig. 2 shows in section a preferred, simply constructed needle machine 1 for use in the system according to the invention. It can be seen a machine frame, in the head next to each other at the same height two eccentric shafts 2 are rotatably mounted, which are driven in rotation in the same direction, which is indicated by corresponding arrows. The eccentric shafts 2 each have eccentric 3, whose eccentricities have the same size. On each eccentric 3, a plate-shaped machine element 4 which is displaced by the latter and is rotatably mounted, which is called here "eccentric follower" and to which a respective needle bar 5 is fastened. The two eccentric followers 4 are formed here as an integral unit. Each needle bar 5 carries a needle board 6, which is equipped with needles 7.

Unterhalb der Nadelbretter 6 befinden sich im Maschinengestell 1 jeweils Stichunterlagen 8, über die eine zu nadelnde Faservliesbahn 9 geführt ist, die im Betrieb mittels im Maschinengestell gelagerten, angetriebenen Zuführwalzen 10 und Abzugswalzen 11 durch die Nadelmaschine transportiert wird.Below the needle boards 6 are in the machine frame 1 each Stichunterlagen 8 over which a nonwoven fiber web 9 is to be tapped, which is transported in operation by means stored in the machine frame, driven feed rollers 10 and take-off rollers 11 through the needle machine.

Die Einheit weist einen die beiden Exzenterfolger 4 verbindenden seitlichen Ausleger 12 auf, in dem eine Vielzahl von im wesentlichen parallel zueinander angeordneten Schlitzen ausgebildet ist, die sich parallel zum vertikalen Hub erstrecken, der an den Exzenterfolgern 4 durch die Exzenter 3 hervorgerufen wird. Diese Vielzahl von Schlitzen bildet ein federndes Koppelelement 13 innerhalb des Auslegers 12, das in der Ebene, die von den Achsen der Exzenterwellen 2 aufgespannt wird, nachgiebig ist, senkrecht dazu aber starr ist. Die beiden Exzenterfolger 4 sind daher prinzipiell in horizontaler Richtung gegeneinander beweglich, womit keine Klemmungen an den Lagern der Exzenterwellen 2 auftreten können. In vertikaler Richtung können die Exzenterfolger 4 eventuell auftretenden Lagerklemmungen durch leichtes Kippen der aus den beiden Exzenterfolgern 4 gebildeten Zwillingsanordnung in Verbindung durch die elastische Kopplung am Koppelelement 13 nachgeben. Die Schlitze, die das Koppelelement 13 ausbilden, können auf einfache Weise in der die Exzenterfolger 4 ausbildenden Platte durch Fräsen oder Sägen hergestellt werden.The unit has a lateral extension arm 12 connecting the two eccentric followers 4, in which a plurality of slits arranged substantially parallel to one another are arranged, which extend parallel to the vertical stroke, which adjoins the eccentric followers 4 is caused by the eccentric 3. This plurality of slots forms a resilient coupling element 13 within the boom 12, which in the plane which is spanned by the axes of the eccentric shafts 2, is yielding, but is perpendicular thereto rigid. The two eccentric 4 are therefore in principle in the horizontal direction against each other movable, so no jamming can occur on the bearings of the eccentric shafts 2. In the vertical direction, the eccentric follower 4 can yield any possible bearing clamps by slightly tilting the twin arrangement formed by the two eccentric followers 4 in connection with the elastic coupling on the coupling element 13. The slots that form the coupling element 13, can be easily prepared in the eccentric 4 forming plate by milling or sawing.

Im Betrieb laufen durch die Rotation der Exzenterwellen 2 deren Exzenter 3 einander gleichphasig um. Durch die Verbindung der Exzenterfolger 4 über den Ausleger 12 und das Koppelelement 13 folgen beide Exzenterfolger 4 der Umlaufbewegung der Exzenter 3 kongruent, so dass die Spitzen der Nadeln 7 einen in der Ebene der Zeichnung liegenden kreisförmigen Weg beschreiben. Dabei sind sie in der in der Zeichnung nach links gerichteten Bewegungskomponente der Exzenter 3 in das zu nadelnde Faservlies 9 eingestochen, in der nach rechts verlaufenden Bewegungskomponente aber aus dem Faservlies 9 herausgezogen.In operation, run through the rotation of the eccentric shafts 2 whose eccentric 3 in the same phase to each other. Through the connection of the eccentric follower 4 via the arm 12 and the coupling element 13, both eccentric followers 4 follow the orbital motion of the eccentric 3 congruently, so that the tips of the needles 7 describe a circular path lying in the plane of the drawing. They are in the drawing in the left-directed movement component of the eccentric 3 stabbed into the nonwoven fabric 9 to be needled, but pulled out of the nonwoven fabric 9 in the rightward movement component.

Aufgrund des beweglichen Koppelelements 13 können die Nadeln 7 stets ordnungsgemäß in das zu nadelnde Faservlies 9 von oben einstechen und kippen während ihrer Bewegung nicht. Klemmungen an den Exzenterwellen 2 können aufgrund der beweglichen Kopplung nicht auftreten.Due to the movable coupling element 13, the needles 7 can always properly pierce into the non-woven fabric 9 to be needled from above and do not tilt during their movement. Clamping on the eccentric shafts 2 can not occur due to the movable coupling.

Es sind auch alle möglichen anderen Nadelmaschinen 1 einsetzbar, die einen Vorschub gewährleisten, unter anderem auch Doppelnadelmaschinen, bei denen oberhalb und unterhalb der Vliesbahn 9 im Maschinengestell jeweils wenigstens ein Nadelaggregat aus nadelbestücktem Brett, Nadelbalken und zugehöriger Antriebseinrichtung angeordnet ist.There are also all sorts of other needling machines 1 can be used, which ensure a feed, including double needle machines in which above and below the nonwoven web 9 in the machine frame in each case at least one needle assembly of needle-board, needle bar and associated drive means is arranged.

Fig. 3 zeigt Beispiele von einfachen Nadelbildern mit Einstichen 15, welche durch die erfindungsgemäße Anlage erzeugt werden können. Fig. 3a ist dabei ein Beispiel eines Nadelbilds, das nach Durchlauf einer Nadelmaschine 1 erzeugt wurde. Fig. 3b und 3c zeigen Nadelbilder auf der Basis von Fig. 3a nach dem Durchlauf einer zweiten Nadelmaschine 1. Man erkennt deutlich die unterschiedlichen Stichmuster in der Vliesbahn 9. Im dargestellten Beispielsfall war der Vorschub 45 mm pro Vertikalhub der Nadelmaschine, die Einstichdichte bei Fig. 3a liegt bei ca. 13 Einstichen pro cm2, bei Fig. 3b und 3c bei ca. 26 Einstichen pro cm2. Fig. 3 shows examples of simple needle images with punctures 15, which can be generated by the inventive system. Fig. 3a is an example of a needle image that was generated after passing through a needle machine 1. Fig. 3b and 3c show needle pictures on the basis of Fig. 3a after the passage of a second needle machine 1. One clearly recognizes the different stitch patterns in the nonwoven web 9. In the illustrated For example, the feed was 45 mm per vertical stroke of the needle machine, the puncture density at Fig. 3a is at about 13 punctures per cm 2 , at Fig. 3b and 3c at approx. 26 punctures per cm 2 .

Mit der erfindungsgemäßen Anlage und dem Verfahren zur Vernadelung einer Vliesbahn kann man auf besonders flexible und einfache Weise eine große Anzahl an Nadelbildern erzeugen.With the system according to the invention and the method for needling a nonwoven web, it is possible to produce a large number of needle images in a particularly flexible and simple manner.

Claims (9)

Anlage zur Vernadelung einer Vliesbahn (9) mit mehreren hintereinander angeordneten Nadelmaschinen (1) mit jeweils wenigstens einem Nadelbalken (5) und einem Paar von Zuführwalzen (10) und Abzugswalzen (11),
dadurch gekennzeichnet, dass
die Nadelmaschinen (1) in Förderrichtung der Vliesbahn (9) entlang einer Führung (14) beweglich und in beliebig bestimmbaren Abständen zueinander arretierbar sind.Apparatus for needling a nonwoven web (9) with a plurality of needle machines (1) arranged one behind the other, each having at least one needle bar (5) and a pair of feed rollers (10) and take-off rollers (11),
characterized in that
the needle machines (1) in the conveying direction of the nonwoven web (9) along a guide (14) are movable and can be locked to each other in any determinable distances. Anlage nach Anspruch 1, dadurch gekennzeichnet, dass jede Nadelmaschine (1) zwei Exzenter (3) aufweist, deren Exzenterwellen (2) gleiche Exzentrizitäten aufweisen und für synchrone Bewegung miteinander gekoppelt sind, und dass die auf den Exzentern (3) gelagerten Exzenterfolger (4), von denen wenigstens einer wenigstens einen Nadelbalken (5) trägt, durch wenigstens ein bewegliches Koppelelement (13) miteinander verbunden sind.Installation according to claim 1, characterized in that each needle machine (1) has two eccentrics (3) whose eccentric shafts (2) have the same eccentricities and are coupled together for synchronous movement, and in that the eccentric followers (4) mounted on the eccentrics (3) ), of which at least one carries at least one needle bar (5) are interconnected by at least one movable coupling element (13). Anlage nach Anspruch 2, dadurch gekennzeichnet, dass die Exzenterfolger (4) als integrale Einheit ausgebildet sind und das Koppelelement (13) durch eine Reihe sich parallel nebeneinander erstreckender Schlitze in der integralen Einheit gebildet ist.Installation according to claim 2, characterized in that the eccentric followers (4) are formed as an integral unit and the coupling element (13) is formed by a series of parallel juxtaposed slots in the integral unit. Anlage nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass die Exzenterwellen (2) in gleicher Höhe nebeneinander angeordnet sind und das Koppelelement (13) zwischen den Exzenterfolgern (4) nur in der von den Achsen der Exzenterwellen (2) aufgespannten Ebene senkrecht zu den Wellenachsen nachgiebig ist, quer zu der genannten Ebene aber steif ist.Installation according to claim 2 or 3, characterized in that the eccentric shafts (2) are arranged side by side at the same height and the coupling element (13) between the eccentric followers (4) only in the plane defined by the axes of the eccentric shafts (2) plane perpendicular to the Shaft axes is compliant, transverse to the said plane but is stiff. Anlage nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Führung (14) durch zwei Schienen gebildet ist.Installation according to one of the preceding claims, characterized in that the guide (14) is formed by two rails. Anlage nach Anspruch 5, dadurch gekennzeichnet, dass jede Nadelmaschine (1) eine Klemmvorrichtung (18) aufweist, welche die Nadelmaschine (1) kraftschlüssig oder formschlüssig an den Schienen (14) festlegt.Installation according to claim 5, characterized in that each needle machine (1) has a clamping device (18), which determines the needle machine (1) non-positively or positively on the rails (14). Anlage nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass jede Nadelmaschine (1) auf Rädern (16) steht, die zur Bewegung entlang der Führung (14) dienen.Installation according to one of the preceding claims, characterized in that each needle machine (1) is on wheels (16), which serve for movement along the guide (14). Anlage nach Anspruch 7, dadurch gekennzeichnet, dass die Anlage eine Steuervorrichtung (20) aufweist, die Schrittmotoren steuert, welche zur gesteuerten Bewegung der Räder (16) dienen.Installation according to claim 7, characterized in that the system comprises a control device (20) which controls stepper motors which are used for the controlled movement of the wheels (16). Verfahren zum Verändern des Einstichmusters beim Vernadeln einer Vliesbahn (9), die durch mehrere in Förderrichtung der Vliesbahn (9) hintereinander angeordnete Nadelmaschinen (1) geleitet wird,
dadurch gekennzeichnet, dass
der gegenseitige Abstand der Nadelmaschinen (1) entlang einer Führung (14) in Förderrichtung der Vliesbahn (9) verstellt wird und die Nadelmaschinen (1) anschließend arretiert werden.Method for changing the stitch pattern when needling a nonwoven web (9), which is passed through a plurality in the conveying direction of the nonwoven web (9) successively arranged needle machines (1),
characterized in that
the mutual distance of the needle machines (1) along a guide (14) in the conveying direction of the nonwoven web (9) is adjusted and the needle machines (1) are subsequently locked.
EP07015722A 2007-08-09 2007-08-09 Facility and method for needling a fleece web Active EP2025789B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AT07015722T ATE485414T1 (en) 2007-08-09 2007-08-09 SYSTEM AND METHOD FOR NEEDLING A NON-WOVEN WEB
DE502007005419T DE502007005419D1 (en) 2007-08-09 2007-08-09 Plant and method for needling a nonwoven web
EP07015722A EP2025789B1 (en) 2007-08-09 2007-08-09 Facility and method for needling a fleece web
US12/186,576 US7975353B2 (en) 2007-08-09 2008-08-06 Device and method for needling a nonwoven web
CN200810135459.7A CN101363165B (en) 2007-08-09 2008-08-07 Device and method for needling a nonwoven web

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07015722A EP2025789B1 (en) 2007-08-09 2007-08-09 Facility and method for needling a fleece web

Publications (2)

Publication Number Publication Date
EP2025789A1 true EP2025789A1 (en) 2009-02-18
EP2025789B1 EP2025789B1 (en) 2010-10-20

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EP07015722A Active EP2025789B1 (en) 2007-08-09 2007-08-09 Facility and method for needling a fleece web

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US (1) US7975353B2 (en)
EP (1) EP2025789B1 (en)
CN (1) CN101363165B (en)
AT (1) ATE485414T1 (en)
DE (1) DE502007005419D1 (en)

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EP3000923A1 (en) * 2014-03-13 2016-03-30 Oskar Dilo Maschinenfabrik KG Needleboard
KR101973883B1 (en) * 2015-03-23 2019-04-29 미쯔비시 케미컬 주식회사 An inorganic fiber molded article, a mat for an exhaust gas cleaning device, and an exhaust gas cleaning device
FR3063744B1 (en) 2017-03-07 2021-06-04 Airbus Safran Launchers Sas PROCESS FOR NEEDLING A FIBROUS LAYER
FR3063745B1 (en) 2017-03-07 2021-06-11 Airbus Safran Launchers Sas PROCESS FOR MANUFACTURING A NEEDLE FIBROUS STRUCTURE

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Also Published As

Publication number Publication date
US20090038129A1 (en) 2009-02-12
CN101363165A (en) 2009-02-11
ATE485414T1 (en) 2010-11-15
US7975353B2 (en) 2011-07-12
EP2025789B1 (en) 2010-10-20
DE502007005419D1 (en) 2010-12-02
CN101363165B (en) 2011-06-15

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