EP2635729B1 - Nonwoven web laying device and method for forming a nonwoven fabric - Google Patents

Nonwoven web laying device and method for forming a nonwoven fabric Download PDF

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Publication number
EP2635729B1
EP2635729B1 EP11760769.7A EP11760769A EP2635729B1 EP 2635729 B1 EP2635729 B1 EP 2635729B1 EP 11760769 A EP11760769 A EP 11760769A EP 2635729 B1 EP2635729 B1 EP 2635729B1
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EP
European Patent Office
Prior art keywords
laying
pile
nonwoven web
belt
infeed
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EP11760769.7A
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German (de)
French (fr)
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EP2635729A1 (en
Inventor
Bernhard RÜBENACH
Sascha Holzschneider
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.)
Truetzschler Nonwovens GmbH
Original Assignee
Truetzschler Nonwovens GmbH
Erko Truetzschler GmbH
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Publication of EP2635729A1 publication Critical patent/EP2635729A1/en
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    • 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

Definitions

  • the invention relates to a nonwoven stripper according to the preamble of the device claim, or a method for forming a nonwoven fabric.
  • nonwoven tape layer shows the EP1 870 499 B1 as well as the EP 0 865 521 B1 .
  • a nonwoven tape changer consists of an endlessly circulating infeed belt, on which the pile to be laid is transported into the file.
  • This infeed belt is additionally associated with a pile covering the pile, which runs in opposite directions and at the same rotational speed to the inlet belt. Between infeed belt and the shroud, the pile is kept out.
  • a in the transport direction of the supplied pile movably mounted and periodic movements exporting superstructure has guide rollers for the cover and the infeed belt.
  • the first held between inlet and shroud pile is now transferred to a counter-belt and kept following between counter and inlet belt.
  • the counter-belt runs at the same speed as the infeed belt and is likewise deflected by a deflection roller arranged in the superstructure.
  • the pile is conveyed to a movably mounted laying carriage, which has deflection rollers (laying rollers) for the two belts.
  • the two parallel juxtaposed laying rollers for the inlet and the counter-belt form a delivery point (laying gap) for the pile to be laid, which is now stored on a surface below the laying carriage storage conveyor, a running perpendicular to the pile direction draw-off.
  • the laying carriage leads to this periodic movements across the Width of the fleece to be laid on.
  • the superstructure moves depending on the movement of the laying carriage.
  • Inlet and counter-belt are guided over other deflection rollers around the storage conveyor around, there are arranged below the storage conveyor correspondingly mounted guide rollers which perform compensating movements in dependence of the movements of the upper and the laying carriage.
  • From the EP 0 315 930 B1 is a nonwoven tape laying with at least two circumferential bands and a reversing moving and accelerated at the reversal points of the travel LeWagen known.
  • the travel path of the laying carriage is perpendicular to the storage conveyor arranged underneath, on which the pile is laid and transported in several layers to form a nonwoven.
  • the bands and the laying carriage have independently controllable drives.
  • a targeted decoupling between the speed of the laying carriage and that of the belts produces a distortion of the pile, so that the pile emerging from the laying carriage can be deposited, at least in regions, with changing pile thickness, between the reversal points.
  • a profiling of the deposited nonwoven fabric is made possible. Density changes across the nonwoven belt width, such as those resulting from influences in a downstream processing machine (e.g., mechanical stapling delays), can be compensated.
  • nonwoven layer which may be provided with air-permeable ribbon.
  • the present invention is thus based on a nonwoven stripper for forming a nonwoven fabric from a plurality of pile layers, consisting of an endlessly circulating infeed belt, a contra-rotating endless belt at the same speed, with infeed and counter belt being guided around two adjacent laying rolls forming a laying gap, wherein said laying rollers are arranged in a laying carriage effecting a laying carriage, which is movably mounted transversely to its conveying direction above a the laying web to be deposited storage conveyor and periodically reciprocates, and inlet and counter belt and the laying carriage are independently controllable via associated drives ,
  • the object of the present invention is to improve such a device, in particular in the direction of storage and product quality.
  • a device by means of which the pile after leaving the laying nip can be subjected to a flow of air directed through it and directed in the direction of the depositing conveyor.
  • the laying rollers form due to the wrap of inlet and counter belt a nip for the pile to be laid.
  • the air flow directed through the pile in particular the negative pressure resulting from the extraction, generates a force and holds the pile in the deposited form the receiving surface, the discharge belt of the storage conveyor, firmly. Between Legespalt and the draw-off, this creates a defined draft zone for the pile.
  • the pile By targeted control of the drives of inlet and counter belt on the one hand and the laying carriage on the other hand, the pile can be stretched and compressed during laying, which allows the laying of a nonwoven over the width of different density, different basis weight, so profiling.
  • Such embodiments of the invention provide in particular that the air permeability of the top of the suction chamber can be influenced, such that in particular the area the suction can be adjusted specifically.
  • the suction area can be adapted to the width of the web to be laid.
  • another pair of adjustable plates and the suction area in the conveying direction of the web can be changed, so it is an adaptation to the width of the laying Flores and the overlap of the pile layers of the laid nonwoven fabric possible.
  • nonwovens are guided by conveyor belts through machines and systems. Due to the necessary belt tension and / or occurring loads from processes or due to the net mass resulting in the band-leading rollers deflections. Particularly on roller coils or transfer points between belts, fast-running, oscillating, slender rollers are often desired for processes, which, however, often have only a low degree of flexural rigidity.
  • the necessary compensation can be realized at the support points of the intermediate support points by means of different spacers or by adjustable bearing points.
  • At least one of the laying rollers LE, LG is divided longitudinally into a plurality of roller segments, which are independently adjustable with respect to the gap width of the laying slot LS.
  • a pile F is placed on a continuous endless inlet belt E.
  • the direction of movement of the pile F is indicated by the arrow.
  • the pile F has the speed vF with which the infeed conveyor E circulates ( FIG. 2 ).
  • the infeed conveyor E is stretched around deflecting rollers UE1-UE5, and also a deflecting roller O arranged in a superstructure, not shown, which performs periodic reciprocating movements with the superstructure.
  • a shroud D holding the pile F cooperates, which circulates in opposite directions to the infeed conveyor E and at its speed.
  • the infeed belt E further runs around two laying rollers LE, LG, which are arranged in a laying carriage LW parallel to each other.
  • the two laying rollers LE, LG form a laying gap LS.
  • a counter belt G is guided around guide rollers UG1 - UG5, also still in the carriage LW to the laying roller LG.
  • the counter-belt G runs in the opposite direction to the intake belt E and with the same Speed like this.
  • the pile F is transferred during the movements of the upper carriage of the guide roller O on the opposite belt G and then held in the area between guide roller O and roller LG between infeed and counter belt E, G.
  • the pile F leaves the laying carriage LW and is placed on the moving draw-off belt AB of the depositing conveyor to the layers of the fleece V.
  • the take-off belt AB runs at right angles to the direction of movement of the laying carriage LW and the belts E, G stretched by the laying rollers LE, LG to the guide rollers UE1, UG1.
  • the laying carriage LW which moves periodically across the width of the nonwoven web V to be laid, has the speed vLW.
  • the pile F delivered from the laying nip LS at the speed vF is deposited at a speed vLW, so that the thickness of the stored pile and thus the total thickness of the non-woven V can be varied over its width by varying the laying carriage speed vLW.
  • the situation is in the presentation after FIG. 2 indicated.
  • a fleece V is laid, which has a smaller thickness in the edge region than in the central region.
  • the take-off belt AB of the storage conveyor is permeable to air, for example in the form of a perforated belt or a sieve belt.
  • the draw-off belt AB is slidably supporting a suction chamber AK with an upwardly permeable top surface, for example in the form of a surface with a plurality of openings or a grid.
  • the suction chamber AK is coupled to a suction air generator SE, which is indicated in FIG.
  • the negative pressure within the suction chamber AK causes a draft LZ through the laid pile F or the layers of the laid nonwoven fabric V, so that the pile F in the drafting zone between the nip of the two laying rollers LE, LG and the discharge belt AB can be compressed or stretched according to the current speed ratio vF / vLW.
  • FIGS. 1 and 2 The draft LZ or the flow through the Flores F and the laid fleece V is in the FIGS. 1 and 2 indicated by the arrows pointing vertically downwards, the different arrow representations have no meaning.
  • Figure 1 the perforated surface of the suction chamber AK, which carries the discharge belt AB slidably reproduced, the suction chamber AK is only in FIG. 2 shown.
  • the drives of the belts (infeed belt E, counter belt G) and the laying carriage LW are not shown.
  • the nature and control of these components for the profiling layer of a web V are known and therefore need no explanation.
  • Fig. 3a shows a cross section through a segmented laying roller, the belt forces F, and the resulting belt force F Res, which acts on the support frame for the storage of the roll segments.
  • Fig. 3b shows a plan view of the segmented laying roller with four roller segments, which are mounted in a support frame and their adjustability by a distance S1, S2, S3 at the support points to a preset bending line, which can be neutralized due to the belt tension, so that the gap width between the Opposite laying rollers LE, LG is consistent. If necessary, the bending line can even be overcompensated, so that the desired line can be a concave line.
  • the laying roller LE, LG may be divided longitudinally into a plurality of successive roller segments which are different with respect to the gap to the opposite laying roller LG, LE are adjustable.
  • the gap distance to the center of the bands is increasingly reduced and the furthest set on the outer roller sections, such that in operation due to the tension of the belt, a uniform or to the middle of the laying rollers LE, LG increasing gap distance between the laying rollers LE, LG on whose length is set.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Advancing Webs (AREA)

Description

Die Erfindung betrifft einen Vliesbandleger gemäß dem Oberbegriff des Vorrichtungsanspruches, bzw. ein Verfahren zum Bilden eines Vlieses.The invention relates to a nonwoven stripper according to the preamble of the device claim, or a method for forming a nonwoven fabric.

Den grundsätzlichen Aufbau eines Vliesbandlegers zeigt die EP1 870 499 B1 sowie die EP 0 865 521 B1 . Ein derartiger Vliesbandleger besteht aus einem endlos umlaufenden Einlaufband, auf welchem der zu legende Flor in den Leger transportiert wird. Diesem Einlaufband ist zusätzlich ein den Flor bedeckendes Deckband zugeordnet, welches gegenläufig und mit gleicher Umlaufgeschwindigkeit zum Einlaufband läuft. Zwischen Einlaufband und dem Deckband wird der Flor geführt gehalten. Ein in Transportrichtung des zugeführten Flors beweglich gelagerter und periodische Bewegungen ausführenden Oberwagen weist Umlenkwalzen für das Deck- und das Einlaufband auf. Der zunächst zwischen Einlauf- und Deckband gehaltene Flor wird nun auf ein Gegenband übergeben und folgend zwischen Gegen- und Einlaufband gehalten. Das Gegenband läuft mit gleicher Geschwindigkeit wie das Einlaufband und wird ebenfalls durch eine im Oberwagen angeordnete Umlenkwalze umgelenkt.The basic structure of a nonwoven tape layer shows the EP1 870 499 B1 as well as the EP 0 865 521 B1 , Such a nonwoven tape changer consists of an endlessly circulating infeed belt, on which the pile to be laid is transported into the file. This infeed belt is additionally associated with a pile covering the pile, which runs in opposite directions and at the same rotational speed to the inlet belt. Between infeed belt and the shroud, the pile is kept out. A in the transport direction of the supplied pile movably mounted and periodic movements exporting superstructure has guide rollers for the cover and the infeed belt. The first held between inlet and shroud pile is now transferred to a counter-belt and kept following between counter and inlet belt. The counter-belt runs at the same speed as the infeed belt and is likewise deflected by a deflection roller arranged in the superstructure.

Zwischen Gegen- und Einlaufband gehalten wird der Flor zu einem beweglich gelagerten Legewagen gefördert, der Umlenkwalzen (Legewalzen) für die beiden Bänder aufweist. Die beiden parallel nebeneinander liegenden Legewalzen für das Einlauf- und das Gegenband bilden eine Abgabestelle (Legespalt) für den zu legenden Flor, der nun auf einer Fläche unterhalb des Legewagens befindlichen Ablageförderer, einem senkrecht zur Florrichtung laufenden Abzugsband abgelegt wird. Der Legewagen führt hierzu periodische Bewegungen quer über die Breite des zu legenden Vlieses auf. Der Oberwagen bewegt sich in Abhängigkeit der Bewegung des Legewagens. Einlauf und Gegenband sind über weitere Umlenkwalzen um den Ablageförderer herum geführt, es sind unterhalb des Ablageförderers entsprechend gelagerte Umlenkwalzen angeordnet, welche Ausgleichsbewegungen in Abhängigkeit der Bewegungen des Ober- und des Legewagens ausführen.Held between the counter and infeed belt, the pile is conveyed to a movably mounted laying carriage, which has deflection rollers (laying rollers) for the two belts. The two parallel juxtaposed laying rollers for the inlet and the counter-belt form a delivery point (laying gap) for the pile to be laid, which is now stored on a surface below the laying carriage storage conveyor, a running perpendicular to the pile direction draw-off. The laying carriage leads to this periodic movements across the Width of the fleece to be laid on. The superstructure moves depending on the movement of the laying carriage. Inlet and counter-belt are guided over other deflection rollers around the storage conveyor around, there are arranged below the storage conveyor correspondingly mounted guide rollers which perform compensating movements in dependence of the movements of the upper and the laying carriage.

Aus der EP 0 315 930 B1 ist ein Vliesbandleger mit mindestens zwei umlaufenden Bändern sowie einem reversierend bewegten und an den Umkehrpunkten des Verfahrweges beschleunigten Legewagen bekannt. Der Verfahrweg des Legewagens verläuft senkrecht zu dem darunter angeordneten Ablageförderer, auf dem der Flor in mehreren Lagen zu einem Vlies gelegt und transportiert wird.From the EP 0 315 930 B1 is a nonwoven tape laying with at least two circumferential bands and a reversing moving and accelerated at the reversal points of the travel LeWagen known. The travel path of the laying carriage is perpendicular to the storage conveyor arranged underneath, on which the pile is laid and transported in several layers to form a nonwoven.

Bei diesem Vliesbandleger weisen die Bänder sowie der Legewagen unabhängig steuerbare Antriebe auf. Eine gezielte Entkopplung zwischen der Geschwindigkeit des Legewagens und der der Bänder erzeugt einen Verzug des Flors, so dass der aus dem Legewagen austretende Flor zwischen den Umkehrpunkten zumindest bereichsweise mit sich ändernder Flordicke abgelegt werden kann. Eine Profilierung des abgelegten Faservlieses wird so ermöglicht. Dichteänderungen über die Vliesbandbreite, welche sich bspw. durch Einflüsse in einer nachgeschalteten Verarbeitungsmaschine ergeben (z.B. Verzüge durch mechanische Vernadelung), können kompensiert werden.In this nonwoven stripper, the bands and the laying carriage have independently controllable drives. A targeted decoupling between the speed of the laying carriage and that of the belts produces a distortion of the pile, so that the pile emerging from the laying carriage can be deposited, at least in regions, with changing pile thickness, between the reversal points. A profiling of the deposited nonwoven fabric is made possible. Density changes across the nonwoven belt width, such as those resulting from influences in a downstream processing machine (e.g., mechanical stapling delays), can be compensated.

Aus der DE 20 2007 009 378 U1 ist ein Kreuzleger mit luftdurchlässigem Abzugsband bekannt, wobei jeweils den Umkehrstellen der Florbahn eine Absaugung zugeordnet ist. Der Flor wird so durch die Bewegungsumkehr beim Legen verursachte Verrückungen gesichert.From the DE 20 2007 009 378 U1 is known a cross-stacker with air-permeable discharge belt, wherein each of the reversal points of the card web suction is associated. The pile is thus secured by the reversal of movement during laying induced displacements.

Aus der DE 10 2004 063 401 A1 ist ein Vliesleger bekannt, der mit luftdurchlässigen Legebändern versehen sein kann.From the DE 10 2004 063 401 A1 is known a nonwoven layer, which may be provided with air-permeable ribbon.

Die vorliegende Erfindung geht somit aus von einem Vliesbandleger zur Bildung eines Vlies aus mehreren Florlagen, bestehend aus einem endlos umlaufendem Einlaufband, einem gegenläufig und mit gleicher Geschwindigkeit endlos umlaufendem Gegenband, wobei Einlauf- und Gegenband um zwei benachbarte und einen Legespalt bildende Legewalzen geführt sind, wobei diese Legewalzen in einem eine Florablage bewirkenden Legewagen angeordnet sind, der oberhalb eines das zu legende Vlies aufnehmenden Ablageförderers quer zu dessen Förderrichtung beweglich gelagert ist und periodisch hin- und herläuft, und Einlauf- und Gegenband sowie der Legewagen über zugeordnete Antriebe unabhängig voneinander steuerbar sind.The present invention is thus based on a nonwoven stripper for forming a nonwoven fabric from a plurality of pile layers, consisting of an endlessly circulating infeed belt, a contra-rotating endless belt at the same speed, with infeed and counter belt being guided around two adjacent laying rolls forming a laying gap, wherein said laying rollers are arranged in a laying carriage effecting a laying carriage, which is movably mounted transversely to its conveying direction above a the laying web to be deposited storage conveyor and periodically reciprocates, and inlet and counter belt and the laying carriage are independently controllable via associated drives ,

Aufgabe der vorliegenden Erfindung ist es, eine derartige Vorrichtung insbesondere in Richtung Ablage und Produktqualität zu verbessern.The object of the present invention is to improve such a device, in particular in the direction of storage and product quality.

Gelöst wird diese Aufgabe durch die Merkmale des Vorrichtungsanspruchs 1, sowie des Verfahrensanspruchs 10.This object is achieved by the features of the device claim 1, as well as the method claim 10th

Vorteilhafte Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen.Advantageous developments of the invention will become apparent from the dependent claims.

Gemäß der Erfindung ist eine Einrichtung vorgesehen, vermittels der der Flor nach Verlassen des Legespaltes mit einer ihn durchdringenden und in Richtung Ablageförderer gerichteten Luftströmung beaufschlagt werden kann.According to the invention, a device is provided, by means of which the pile after leaving the laying nip can be subjected to a flow of air directed through it and directed in the direction of the depositing conveyor.

Die Legewalzen bilden auf Grund der Umschlingung von Einlauf- und Gegenband einen Klemmspalt für den zu legenden Flor. Die durch den Flor gerichtete Luftströmung, insbesondere der sich aus der einer Absaugung ergebende Unterdruck, erzeugt eine Kraft und hält den Flor in der abgelegten Form auf der ihn aufnehmenden Fläche, dem Abzugsband des Ablageförderers, fest. Zwischen Legespalt und dem Abzugsband entsteht so ein definiertes Verzugsfeld für den Flor. Durch gezieltes Steuern der Antriebe von Einlauf- und Gegenband einerseits und dem Legewagen andererseits kann der Flor während des Legens gestreckt und gestaucht werden, was das Legen eines Vlieses mit über die Breite unterschiedlicher Dichte, unterschiedlichem Flächengewicht, also eine Profilierung ermöglicht.The laying rollers form due to the wrap of inlet and counter belt a nip for the pile to be laid. The air flow directed through the pile, in particular the negative pressure resulting from the extraction, generates a force and holds the pile in the deposited form the receiving surface, the discharge belt of the storage conveyor, firmly. Between Legespalt and the draw-off, this creates a defined draft zone for the pile. By targeted control of the drives of inlet and counter belt on the one hand and the laying carriage on the other hand, the pile can be stretched and compressed during laying, which allows the laying of a nonwoven over the width of different density, different basis weight, so profiling.

Folgende bevorzugte Weiterbildungen sind möglich:

  • der Ablageförderer weist im Bereich der Florablage eine Absaugung auf. Gemäß einer derartigen Ausgestaltung ist vorgesehen, dass der Ablageförderer im Bereich der Florablage eine Absaugung aufweist, vermittels der der gelegte Flor mit einer Durchstömung, einer ihn durchdringenden Luftströmung beaufschlagt wird (Durchsaugung).
  • die Absaugung ist als eine Absaugkammer ausgebildet, über deren Oberseite ein luftdurchlässig gestaltetes und das gelegte Vlies aufnehmendes Abzugsband läuft. Die Absaugung ist hierbei als eine mit einem Sauglufterzeuger verbundene Absaugkammer ausgebildet, über dessen Oberseite das luftdurchlässig gestaltete Abzugsband des Ablageförderers läuft, auf welchem der Flor abgelegt wird. Die Oberseite der Absaugkammer ist hier vorzugsweise als eine Fläche ausgebildet, auf der das Abzugsband gleitet. Diese Fläche weist im Bereich der Florablage eine Vielzahl von Öffnungen auf, so dass durch die mit einem Sauglufterzeuger verbundene Absaugkammer eine durch den gelegten Flor gerichtete Strömung entsteht.
  • die Absaugkammer ist mit einem steuerbaren Sauglufterzeuger verbunden. Die Saugleistung des die Absaugkammer mit Unterdruck beaufschlagenden Sauglufterzeugers ist steuerbar, derart, dass die durch den Flor gerichtete Strömung in ihrer Stärke einstellbar ist. Der Ventilator des Sauglufterzeugers ist dazu mit einer entsprechenden Steuerung versehen. So kann die den Flor auf dem Ablageförderer haltende Strömung entsprechend den benötigten Verhältnissen eingestellt werden, insbesondere gerade so stark, dass sich eine optimale Verstreckung ohne negative Veränderung der Florstruktur ergibt.
  • zur Erzeugung der den Flor durchdringenden Luftströmung sind mehrere einzeln mit Unterdruck beaufschlagbare Absaugkammern vorgesehen. Der Bereich der Durchsaugung ist in Form von mehreren Absaugkammern gestaltet, welche an eine oder mehrere Sauglufterzeuger geschaltet sind und insgesamt ein Absaugfeld ergeben. Dadurch kann die Stärke der Durchsaugung in Vliesförderrichtung sowie quer dazu unterschiedlich eingestellt werden. Bei Verwendung eins zentralen Sauglufterzeugers werden die einzelnen Absaugkammern über steuerbare Drosseln bzw. Frischluftklappen im Grad der Unterdruckbeaufschlagung gesteuert. Der Durchsaugbereich ist so zonal entsprechend den Anforderungen zonal unterschiedlich steuerbar.
  • es sind Mittel vorgesehen, durch welche die Strömung, die Durchsaugung von Flor und Vlies über die Breite des zu legenden Vlies unterschiedlich gestaltet werden kann.
  • es sind Mittel vorgesehen, durch welche die Strömung, die Durchsaugung von Flor und Vlies in Transportrichtung des gelegten Vlieses unterschiedlich gestaltet werden kann.
The following preferred developments are possible:
  • The storage conveyor has an extraction in the area of the pile storage. According to such an embodiment, it is provided that the storage conveyor in the region of the pile storage has a suction, by means of which the laid pile is acted upon by a flow through it, an air flow penetrating it (suction).
  • the suction is designed as a suction chamber, over the top of which an air-permeable designed and the laid fleece receiving exhaust belt runs. The suction is in this case designed as a suction chamber connected to a suction, over whose upper side the air-permeable discharge belt of the storage conveyor runs, on which the pile is stored. The upper side of the suction chamber is here preferably designed as a surface on which the discharge belt slides. This surface has a plurality of openings in the region of the pile support so that a suction directed through the laid pile creates flow through the suction chamber connected to a suction generator.
  • the suction chamber is connected to a controllable vacuum generator. The suction power of the suction chamber acting on the suction vacuum generator is controllable, such that the flow directed through the pile is adjustable in its thickness. The fan of the vacuum generator is provided with a corresponding control. Thus, the flow holding the pile on the tray conveyor can be adjusted according to the required conditions, in particular just so much that results in an optimal stretching without a negative change in the pile structure.
  • to generate the Flor air passing through the pore several individually acted upon with negative pressure suction chambers are provided. The area of the suction is designed in the form of several suction chambers, which are connected to one or more suction air generators and result in a total suction field. As a result, the thickness of the suction can be adjusted differently in the fleece conveying direction and transversely thereto. When using a central vacuum generator, the individual suction chambers are controlled via controllable throttles or fresh air valves in the degree of negative pressure. The suction area is thus zonal differently controllable according to the requirements.
  • Means are provided by which the flow, the suction of pile and fleece over the width of the fleece to be laid can be designed differently.
  • there are provided means by which the flow, the suction of web and fleece in the transport direction of the laid web can be designed differently.

Derartige Ausgestaltungen der Erfindung sehen insbesondere vor, dass die Luftdurchlässigkeit der Oberseite der Absaugkammer beeinflussbar ist, derart, dass insbesondere der Bereich der Durchsaugung gezielt eingestellt werden kann. Durch ein Paar als Blende wirkende Bleche, welche verschiebbar angeordnet sind, kann der Saugbereich an die Breite des zu legenden Vlieses angepasst werden. Durch ein weiteres Paar einstellbarer Bleche kann auch der Saugbereich in Förderrichtung des Vlieses verändert werden, es ist also eine Anpassung an die Breite des zu legenden Flores und an die Überlappung der Florlagen des gelegten Vlieses möglich.Such embodiments of the invention provide in particular that the air permeability of the top of the suction chamber can be influenced, such that in particular the area the suction can be adjusted specifically. By a pair acting as a panel sheets, which are arranged displaceably, the suction area can be adapted to the width of the web to be laid. By another pair of adjustable plates and the suction area in the conveying direction of the web can be changed, so it is an adaptation to the width of the laying Flores and the overlap of the pile layers of the laid nonwoven fabric possible.

Weiterbildend ist ferner möglich, in der oder den Absaugkammern vorzugsweise einstellbare Luftleitelemente vorzusehen. Auch dadurch ist eine an die vorliegenden Bedingungen optimiert anpassbare Einstellung des Strömungsfeldes erzielbar.Further education is further possible to provide preferably adjustable air guide elements in the or the suction chambers. This also makes it possible to achieve an adjustment of the flow field which can be optimally adapted to the prevailing conditions.

Bei vielfältigen Anwendungen in der Textilindustrie werden Vliese mittels Transportbänder durch Maschinen und Anlagen geführt. Durch die dabei nötigen Bandspannungen oder/und auftretende Belastungen aus Prozessen oder bedingt durch die Eigenmasse ergeben sich an den bandführenden Walzen Durchbiegungen. Besonders an Walzenzwickeln oder Übergabestellen zwischen Bändern sind oftmals schnell laufende, oszillierende, schlanke Walzen für Prozesse gewünscht, welche jedoch oftmals nur eine geringe Biegesteife aufweisen.In a variety of applications in the textile industry, nonwovens are guided by conveyor belts through machines and systems. Due to the necessary belt tension and / or occurring loads from processes or due to the net mass resulting in the band-leading rollers deflections. Particularly on roller coils or transfer points between belts, fast-running, oscillating, slender rollers are often desired for processes, which, however, often have only a low degree of flexural rigidity.

Gewünscht wird oft ein möglichst konstanter Spalt zwischen sich gegenüberliegenden Walzen oder aber ein definierter Spalt, der einem vorbestimmten Profil folgt.What is often desired is a gap that is as constant as possible between opposing rolls or a defined gap that follows a predetermined profile.

Erreicht werden kann dies durch eine, ein- oder mehrfach auf ihrer Länge zwischengestützte Walze aus Walzensegmenten, die jeweils an ihren Enden in einem tragenden Element, z.B. einem Stützrahmen gelagert sind. Es ist eine Vorbestimmung der Biegelinie des tragenden Elementes unter Last und eine Kompensation der Verformung an den Zwischenstützpunkten der Walzensegmente möglich, um eine gewünschte Linie oder ein gewünschtes Profil einzustellen, d.h. in diesem Fall die Biegelinie des Stützrahmens unter der Last der Bandspannung an einem Walzenpaar, z.B. dem Legewalzenpaar LE,LG.This can be achieved by a, one or more times on their length inter-supported roll of roll segments, which are each mounted at their ends in a supporting element, such as a support frame. It is a predetermination of the bending line of the load-bearing element under load and a compensation of the deformation at the intermediate support points the roll segments possible to set a desired line or a desired profile, that is, in this case, the bending line of the support frame under the load of the belt tension on a pair of rollers, eg the laying roller pair LE, LG.

Der notwendige Ausgleich kann an den Stützstellen der Zwischenstützpunkte durch unterschiedliche Abstandhalter oder durch einstellbare Lagerstellen realisiert werden.The necessary compensation can be realized at the support points of the intermediate support points by means of different spacers or by adjustable bearing points.

Mindestens eine der Legewalzen LE,LG ist in Längsrichtung in mehrere Walzensegmente unterteilt, die unabhängig voneinander hinsichtlich der Spaltweite des Legespaltes LS einstellbar sind.At least one of the laying rollers LE, LG is divided longitudinally into a plurality of roller segments, which are independently adjustable with respect to the gap width of the laying slot LS.

Des Weiteren erfolgt die Erläuterung eines Ausführungsbeispieles der Erfindung anhand der Zeichnungen.Furthermore, the explanation of an embodiment of the invention with reference to the drawings.

Ein Flor F wird auf einem umlaufenden endlosen Einlaufband E abgelegt. Die Bewegungsrichtung des Flors F ist mit dem Pfeil gekennzeichnet. Der Flor F besitzt die Geschwindigkeit vF, mit der das Einlaufband E umläuft (Figur 2). Das Einlaufband E ist um Umlenkwalzen UE1 - UE5 gespannt, ferner um eine in einem nicht weiter dargestellten Oberwagen angeordnete Umlenkwalze O, welche mit dem Oberwagen periodische Hin- und Herbewegungen ausführt. Mit dem Einlaufband E wirkt ein den Flor F haltendes Deckband D zusammen, welches gegensinnig zu dem Einlaufband E und mit dessen Geschwindigkeit umläuft.A pile F is placed on a continuous endless inlet belt E. The direction of movement of the pile F is indicated by the arrow. The pile F has the speed vF with which the infeed conveyor E circulates ( FIG. 2 ). The infeed conveyor E is stretched around deflecting rollers UE1-UE5, and also a deflecting roller O arranged in a superstructure, not shown, which performs periodic reciprocating movements with the superstructure. With the infeed conveyor E, a shroud D holding the pile F cooperates, which circulates in opposite directions to the infeed conveyor E and at its speed.

Das Einlaufband E läuft ferner um zwei Legewalzen LE, LG, welche in einem Legewagen LW parallel zueinander angeordnet sind. Die beiden Legewalzen LE, LG bilden einen Legespalt LS. Ein Gegenband G ist um Umlenkwalzen UG1 - UG5 geführt, ferner noch im Legewagen LW um die Legewalze LG. Das Gegenband G läuft im Gegensinn zum Einlaufband E und mit gleicher Geschwindigkeit wie dieses. Der Flor F wird während der Bewegungen des Oberwagens von der Umlenkwalze O auf das Gegenband G übergeben und anschließend im Bereich zwischen Umlenkwalze O und Legewalze LG zwischen Einlauf- und Gegenband E, G geführt gehalten. Über den Legespalt LS zwischen den Legewalzen LE, LG verlässt der Flor F den Legewagen LW und wird auf das sich bewegende Abzugsbandes AB des Ablageförderers zu den Lagen des Vlieses V gelegt. Das Abzugsband AB läuft im rechten Winkel zu der Bewegungsrichtung des Legewagens LW sowie den von den Legewalzen LE, LG zu den Umlenkwalzen UE1, UG1 gespannten Bändern E, G.The infeed belt E further runs around two laying rollers LE, LG, which are arranged in a laying carriage LW parallel to each other. The two laying rollers LE, LG form a laying gap LS. A counter belt G is guided around guide rollers UG1 - UG5, also still in the carriage LW to the laying roller LG. The counter-belt G runs in the opposite direction to the intake belt E and with the same Speed like this. The pile F is transferred during the movements of the upper carriage of the guide roller O on the opposite belt G and then held in the area between guide roller O and roller LG between infeed and counter belt E, G. Via the laying gap LS between the laying rollers LE, LG, the pile F leaves the laying carriage LW and is placed on the moving draw-off belt AB of the depositing conveyor to the layers of the fleece V. The take-off belt AB runs at right angles to the direction of movement of the laying carriage LW and the belts E, G stretched by the laying rollers LE, LG to the guide rollers UE1, UG1.

Der periodisch über die Breite des zu legenden Vlieses V sich bewegende Legewagen LW weist die Geschwindigkeit vLW auf. Der mit der Geschwindigkeit vF aus dem Legespalt LS geförderte Flor F wird mit einer Geschwindigkeit vLW abgelegt, so dass sich durch Variation der Legewagengeschwindigkeit vLW die Dicke des abgelegten Flores und somit die Gesamtdicke des Vlieses V über dessen Breite variieren lässt. Die Situation ist in der Darstellung nach Figur 2 angedeutet. In diesem Beispiel wird ein Vlies V gelegt, welches im Randbereich eine geringere Dicke aufweist als im mittleren Bereich.The laying carriage LW, which moves periodically across the width of the nonwoven web V to be laid, has the speed vLW. The pile F delivered from the laying nip LS at the speed vF is deposited at a speed vLW, so that the thickness of the stored pile and thus the total thickness of the non-woven V can be varied over its width by varying the laying carriage speed vLW. The situation is in the presentation after FIG. 2 indicated. In this example, a fleece V is laid, which has a smaller thickness in the edge region than in the central region.

Das Abzugsband AB des Ablageförderers ist luftdurchlässig ausgebildet, bspw. in Form eines gelochten Bandes oder eines Siebbandes. Im Legebereich des Flores F unterhalb des Legewagens LW ist das Abzugsband AB gleitend tragend eine Absaugkammer AK mit einer nach oben luftdurchlässig gestalteten Oberseite, bspw. in Form einer Fläche mit einer Vielzahl Öffnungen oder eines Gitters, angeordnet. Die Absaugkammer AK ist mit einem Sauglufterzeuger SE gekoppelt, was in der Figur 2 angedeutet ist. Der Unterdruck innerhalb der Absaugkammer AK bewirkt einen Luftzug LZ durch den gelegten Flor F bzw. die Lagen des gelegten Vlieses V, so dass sich der Flor F im Verzugsfeld zwischen der Klemmstelle der beiden Legewalzen LE, LG und dem Abzugsband AB entsprechend dem aktuellen Geschwindigkeitsverhältnis vF/vLW stauchen bzw. verstrecken lässt.The take-off belt AB of the storage conveyor is permeable to air, for example in the form of a perforated belt or a sieve belt. In the laying area of the pile F below the laying carriage LW, the draw-off belt AB is slidably supporting a suction chamber AK with an upwardly permeable top surface, for example in the form of a surface with a plurality of openings or a grid. The suction chamber AK is coupled to a suction air generator SE, which is indicated in FIG. The negative pressure within the suction chamber AK causes a draft LZ through the laid pile F or the layers of the laid nonwoven fabric V, so that the pile F in the drafting zone between the nip of the two laying rollers LE, LG and the discharge belt AB can be compressed or stretched according to the current speed ratio vF / vLW.

Der Luftzug LZ bzw. die Durchströmung des Flores F und des gelegten Vlies V ist in den Figuren 1 und 2 durch die senkrecht nach unten gerichteten Pfeile angedeutet, wobei die unterschiedlichen Pfeildarstellungen keine Bedeutung haben. In Figur 1 ist die gelochte Oberfläche der Absaugkammer AK, welche das Abzugsband AB gleitend trägt, wiedergegeben, die Absaugkammer AK ist jedoch lediglich in Figur 2 dargestellt. Die Antriebe der Bänder (Einlaufband E, Gegenband G) sowie des Legewagens LW sind nicht dargestellt. Die Art und Steuerung dieser Komponenten zur profilierenden Lage eines Vlies V sind jedoch bekannt und bedürfen daher keiner Erläuterung.The draft LZ or the flow through the Flores F and the laid fleece V is in the FIGS. 1 and 2 indicated by the arrows pointing vertically downwards, the different arrow representations have no meaning. In Figure 1, the perforated surface of the suction chamber AK, which carries the discharge belt AB slidably reproduced, the suction chamber AK is only in FIG. 2 shown. The drives of the belts (infeed belt E, counter belt G) and the laying carriage LW are not shown. However, the nature and control of these components for the profiling layer of a web V are known and therefore need no explanation.

Fig. 3a zeigt einen Querschnitt durch eine segmentierte Legewalze, die Bandkräfte F, sowie die resultierende Bandkraft F Res, die auf den Stützrahmen für die Lagerung der Walzensegmente einwirkt. Fig. 3a shows a cross section through a segmented laying roller, the belt forces F, and the resulting belt force F Res, which acts on the support frame for the storage of the roll segments.

Fig. 3b zeigt eine Draufsicht auf die segmentierte Legewalze mit vier Walzensegmenten, die in einem Stützrahmen gelagert sind und deren Einstellbarkeit um einen Weg S1,S2,S3 an den Stützstellen zu einer voreingestellten Biegelinie, die aufgrund der Bandspannung neutralisiert werden kann, so dass die Spaltweite zwischen den sich gegenüberliegenden Legewalzen LE,LG gleichbleibend ist. Bei Bedarf kann die Biegelinie sogar überkompensiert werden, so dass sich als gewünschte Linie eine konkave Linie ergeben kann. Fig. 3b shows a plan view of the segmented laying roller with four roller segments, which are mounted in a support frame and their adjustability by a distance S1, S2, S3 at the support points to a preset bending line, which can be neutralized due to the belt tension, so that the gap width between the Opposite laying rollers LE, LG is consistent. If necessary, the bending line can even be overcompensated, so that the desired line can be a concave line.

Die Legewalze LE,LG kann in Längsrichtung in mehrere aufeinanderfolgende Walzensegmente unterteilt sein, die unterschiedlich hinsichtlich des Spaltes zu der gegenüberliegenden Legewalze LG,LE einstellbar sind.The laying roller LE, LG may be divided longitudinally into a plurality of successive roller segments which are different with respect to the gap to the opposite laying roller LG, LE are adjustable.

Vorzugsweise ist der Spaltabstand zur Mitte der Bänder zunehmend verringert und an den äußeren Walzenabschnitten am weitesten eingestellt, derart, dass sich im Betrieb aufgrund der Spannung des Bandes ein gleichmäßiger oder ein zur Mitte der Legewalzen LE,LG zunehmender Spaltabstand zwischen den Legewalzen LE,LG über deren Länge einstellt.Preferably, the gap distance to the center of the bands is increasingly reduced and the furthest set on the outer roller sections, such that in operation due to the tension of the belt, a uniform or to the middle of the laying rollers LE, LG increasing gap distance between the laying rollers LE, LG on whose length is set.

Bezugszeichenliste:LIST OF REFERENCE NUMBERS

FF
Florpile
Ee
Einlaufbandinfeed conveyor
DD
Deckbandshroud
GG
Gegenbandagainst band
OO
Umlenkwalze OberwagenGuide roller uppercarriage
LWLW
Legewagenlaying carriage
LELE
Legewalze (Einlaufband)Laying roller (infeed conveyor)
LGLG
Legewalze (Gegenband)Laying roller (counter belt)
LSLS
Legespaltlaying gap
UE1-UE5UE1-UE5
Umlenkwalzen (Einlaufband)Guide rollers (infeed conveyor)
UG1-UG5UG 1-UG5
Umlenkwalzen (Gegenband)Deflection rollers (counter belt)
VV
Vliesfleece
ABFROM
Abzugsband/ AblagefördererDischarge belt / storage conveyor
LZLZ
Luftzug, LuftströmungDraft, air flow
AKAK
Absaugkammersuction
SESE
Sauglufterzeugervacuum generator
vFvF
Geschwindigkeit Flor FSpeed Flor F
vLWvlw
Geschwindigkeit Legewagen LWSpeed Leewagen LW

Claims (12)

  1. A nonwoven web laying device for forming a nonwoven web (V) from a plurality of pile layers, consisting of a continuously circulating infeed belt (E), a counter belt (G) continuously circulating in the opposite direction at the same speed, wherein the infeed and counter belts (E,G) are guided by two adjacent laying rollers (LE,LG) forming a laying gap (LS), wherein said laying rollers (LE,LG) are arranged in a laying carriage (LW), which effects a pile deposit and is movably mounted above and transversely to the direction of conveyance of a depositing conveyor receiving the nonwoven web (V) to be laid and which runs back and forth periodically, and the infeed and counter belts (E,G) and the laying carriage (LW) can be controlled independently of each other via allocated drives,
    characterized by
    an apparatus (AK,SE) by means of which the pile (F) can be subjected to an air flow (LZ) after leaving the laying gap (LS), said air flow penetrating the pile and being directed toward the depositing conveyor (AB).
  2. The nonwoven web laying device according to claim 1, characterized in that the depositing conveyor (AB) comprises a suction device in the area of the pile deposit.
  3. The nonwoven web laying device according to claim 1 or 2, characterized in that the pile (F) in the draft zone between the clamping site between the two laying rollers (LE,LG) and the take-off belt (AB) can be compressed or stretched corresponding to the current speed ratio between the pile speed and the laying carriage speed.
  4. The nonwoven web laying device according to claim 2 or 3, characterized in that said apparatus (AK,SE) is formed as a suction chamber (AK), the upper side thereof having running thereon an air-permeable take-off belt (AB) receiving the laid nonwoven web (V).
  5. The nonwoven web laying device according to any one of claims 1 to 4, characterized in that said apparatus (AK,SE) is connected to a controllable suction air generator (SE).
  6. The nonwoven web laying device according to claim 4, characterized in that, for generating the air flow passing through the pile (F), a plurality of suction chambers (AK) are provided which can be individually subjected to a vacuum.
  7. The nonwoven web laying device according to any one of the preceding claims, characterized in that means are provided by which the flow can be set in a varying manner across the width of the nonwoven web (V) to be laid.
  8. The nonwoven web laying device according to any one of the preceding claims, characterized in that means are provided by which the flow can be set in a varying manner in the transport direction of the nonwoven web (V) to be laid.
  9. The nonwoven web laying device according to any one of the preceding claims, characterized in that at least one of the laying rollers (LE,LG) is subdivided, in the longitudinal direction, into a plurality of roller segments which are adjustable independently from each other with respect to the gap width of the laying gap (LS).
  10. A method for forming a nonwoven web (V) from a plurality of pile layers in a nonwoven web laying device by transporting a pile (F) infed on an infeed belt (E) between the endlessly circulating infeed belt (E) and an endlessly circulating counter belt (G) running in the opposite sense and at the same speed, wherein said infeed and counter belts (E,G) are trained about two adjacent laying rollers (LE,LG) of a laying carriage (LW), said laying rollers forming a laying gap (LS), and, above a depositing conveyer (AB) receiving the nonwoven web to be laid, the laying carriage (LW) is supported for movement transversely to the conveying direction of the depositing conveyer and is periodically reciprocated, wherein said infeed and counter belts (E,G) and the laying carriage are controlled independently from each other by associated drives,
    characterized by
    subjecting the pile (F), after the pile has left the laying gap (LS), to an air flow (LZ) passing through the pile and directed toward the depositing conveyer (AB).
  11. The method according to claim 10, characterized in that the depositing conveyer (AB) is suctioned in the area of the pile deposit.
  12. The method according to claim 10, characterized in that, for suctioning, use is made of a suction chamber (AK), the upper side thereof having running thereon an air-permeable take-off belt (AB) receiving the laid nonwoven web (V).
EP11760769.7A 2010-11-02 2011-09-21 Nonwoven web laying device and method for forming a nonwoven fabric Not-in-force EP2635729B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010050028A DE102010050028A1 (en) 2010-11-02 2010-11-02 The nonwoven laying
PCT/EP2011/066445 WO2012059273A1 (en) 2010-11-02 2011-09-21 Nonwoven web laying device and method for forming a nonwoven fabric

Publications (2)

Publication Number Publication Date
EP2635729A1 EP2635729A1 (en) 2013-09-11
EP2635729B1 true EP2635729B1 (en) 2015-02-25

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Application Number Title Priority Date Filing Date
EP11760769.7A Not-in-force EP2635729B1 (en) 2010-11-02 2011-09-21 Nonwoven web laying device and method for forming a nonwoven fabric

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EP (1) EP2635729B1 (en)
CN (1) CN103221592A (en)
DE (1) DE102010050028A1 (en)
WO (1) WO2012059273A1 (en)

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2245051A1 (en) * 1972-09-14 1974-03-21 Krupp Gmbh CROSS-LAYER FOR FLEECING
DE3738190C2 (en) 1987-11-10 1997-10-16 Autefa Holding Gmbh Process for forming a nonwoven and nonwoven tape layer
DE4128592A1 (en) * 1991-08-28 1993-03-04 Baehre & Greten Continuous mfr. of felting or nonwoven from fibre particles - where compressed air stream is provided at the levelling zone to mix loose fibres for suction extraction
DE29518587U1 (en) 1995-11-23 1997-04-10 Autefa Maschinenfab Fleece layer
DE102004063401A1 (en) * 2004-12-23 2006-07-20 Autefa Automation Gmbh Laying of a fleece with improved web introduction involves feeding the web only in straight-running sections of the curved feed zone
DE502006000950D1 (en) * 2006-02-01 2008-07-31 Dilo Kg Maschf Oskar Device for laying a fleece
DE102006028448A1 (en) 2006-06-21 2007-12-27 ERKO Trützschler GmbH stacker
DE202007009378U1 (en) 2006-07-08 2007-09-27 ERKO Trützschler GmbH Vliesrandbesaugung
FR2905956A1 (en) * 2006-09-15 2008-03-21 Asselin Thibeau Soc Par Action METHOD AND INSTALLATION FOR MANUFACTURING TEXTILE COMPRISING INTERLAYERS, AND DEVICE THEREFOR.
CN200988875Y (en) * 2006-12-08 2007-12-12 上海嘉翰轻工机械有限公司 High speed wide width forming machine
EP1975286A1 (en) * 2007-03-30 2008-10-01 Oskar Dilo Maschinenfabrik KG Web laying device
CN101126196B (en) * 2007-10-10 2010-05-19 东华大学 Bottom curtain suction device on cross lapper and net curtain
ATE543930T1 (en) * 2008-08-21 2012-02-15 Dilo Kg Maschf Oskar DEVICE FOR LAYING A FLEECE
EP2169095B1 (en) * 2008-09-29 2012-06-06 Oskar Dilo Maschinenfabrik KG Device for laying a fibre web evenly

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DE102010050028A1 (en) 2012-05-03
WO2012059273A1 (en) 2012-05-10
EP2635729A1 (en) 2013-09-11
CN103221592A (en) 2013-07-24

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