EP2175056B1 - Dispositif et procédé destinés à la transmission d'un non-tissé - Google Patents

Dispositif et procédé destinés à la transmission d'un non-tissé Download PDF

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Publication number
EP2175056B1
EP2175056B1 EP08165977A EP08165977A EP2175056B1 EP 2175056 B1 EP2175056 B1 EP 2175056B1 EP 08165977 A EP08165977 A EP 08165977A EP 08165977 A EP08165977 A EP 08165977A EP 2175056 B1 EP2175056 B1 EP 2175056B1
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EP
European Patent Office
Prior art keywords
conveyor belt
drive unit
output conveyor
fleece
drive
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.)
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Application number
EP08165977A
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German (de)
English (en)
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EP2175056A1 (fr
Inventor
Joachim 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 EP08165977A priority Critical patent/EP2175056B1/fr
Priority to AT08165977T priority patent/ATE543932T1/de
Priority to US12/574,514 priority patent/US8365370B2/en
Priority to CN2009101729978A priority patent/CN101713122B/zh
Publication of EP2175056A1 publication Critical patent/EP2175056A1/fr
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Publication of EP2175056B1 publication Critical patent/EP2175056B1/fr
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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
    • 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
    • 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

  • the invention relates to an apparatus and a method for transferring a nonwoven fabric from a nonwoven layer to a solidification device.
  • a nonwoven layer for laying a nonwoven fabric and subsequently bonded nonwoven consolidation means e.g. Needle machines for needling the fleece, have long been known.
  • Nonwovens can be designed as a steep-arm nonwoven or as a flat fan.
  • a laying carriage moves in a fixed rhythm over a delivery conveyor belt back and forth.
  • At least two pile conveyor belts are used in the fleece layer for transporting a card web to the discharge gap in the laying carriage.
  • the webs are stored on the delivery conveyor belt. Due to the back and forth movement of the laying carriage and the forward movement of the delivery conveyor belt results on the delivery conveyor belt a multi-layer fleece with obliquely paneled pile layers.
  • the nonwoven web produced by the nonwoven fabric is then compacted to a consolidation device, e.g. a hydroentangling device or a needle machine, further transported, which usually has a continuous intake.
  • a consolidation device e.g. a hydroentangling device or a needle machine
  • irregularities in the nonwoven to be consolidated therefore occur due to the different types of movement.
  • EP 1 643 022 A1 which represents the closest prior art, shows all the features of the preamble of claims 1 and 8.
  • the card web is deposited within the nonwoven layer on a delivery conveyor belt, which is part of the nonwoven and is driven at variable speed.
  • a compensation device is provided, which consists of an endless storage belt with variable slack. This balancing device is an independent element arranged outside the web layer and decoupled from the delivery conveyor belt.
  • the present invention has for its object to provide a device for transferring a nonwoven fabric from a nonwoven layer to a solidification device, the simple is constructed and can be compensated with the variable conveying speeds of the web in the nonwoven and thus the web of the solidification device can be continuously supplied to increase the uniformity of the bonded web even further, and to provide a corresponding method.
  • the device for transferring a nonwoven fabric from a nonwoven layerer to a consolidation device comprises an endlessly circulating delivery conveyor belt of the nonwoven layer for receiving the nonwoven fabric within the nonwoven layer, at least one first drive device being provided for driving the delivery conveyor belt at variable speed. Moreover, a second drive means arranged to drive the delivery conveyor belt at a substantially constant speed with respect to the first drive means is provided, and in a portion between the first and the second drive means, a slack storage of the delivery conveyor belt is formed.
  • the delivery conveyor belt is formed as a slat strip with a plurality of transverse slats.
  • a secure transport of the web is guaranteed and at the same time any slack of Abarritransportbandes is possible.
  • the second drive device preferably has a toothed drive roller or a plurality of parallel drive gears.
  • the first drive device preferably has a toothed drive roller or a plurality of parallel drive gears. These are usually connected directly to the delivery conveyor belt and are thus suitable for direct power transmission.
  • the first drive means may comprise an endlessly circulating transport means, which has an upper run, which is positively or frictionally connected to an upper run of the Abendertransportbands. This will be the Drive the despatch conveyor belt in the area of a section of the upper run ensured. This leads to a homogenization of the drive and a particularly safe and accurate forward movement of the delivery conveyor belt in the area in front of the slack storage.
  • a particularly suitable connection which ensures the drive of the delivery conveyor belt, is ensured via a positive connection.
  • the delivery conveyor belt preferably has teeth which protrude inwardly, and the endlessly circulating transport means has teeth which protrude outwards and in the region of the upper run are in engagement with the teeth of the delivery conveyor belt.
  • a portion of the upper run of the delivery conveyor belt may be guided in front of the slack storage on a smooth surface.
  • Fig. 1 shows a schematic view of a nonwoven layer 2 in a frontally with respect to a delivery conveyor belt 4 view.
  • the endlessly circulating delivery conveyor belt 4 is intended to transport a laid nonwoven (not shown) in a direction of transport perpendicular to the plane of the drawing.
  • About the delivery conveyor belt 4 is a laying carriage 6 on rails or tubes 8 back and forth movable, in which between two rollers 10, 12 a Ablegespalt for the card web (not shown) is formed.
  • the card web is guided in the nonwoven layer 2 by means of at least two Flortransportbändem 14, 16 to this Ablegespalt.
  • the fleece layer 2 is designed as a flat saw, in which a substantially arranged at one level with the laying carriage 6 upper carriage 18 is also mounted transversely to the transport direction of the delivery conveyor belt 4 on rails or tubes 8 movable.
  • the rails or tubes 8 may be the same rails or tubes on which the laying carriage 6 is movably mounted.
  • the superstructure 18 executes a synchronous, albeit slower, movement.
  • the movements of laying carriage 6 and upper carriage 18 are coordinated so that when feeding the card web in the batt 2 with uniform speed controlled storage of the card web can take place without stretching or buckling within the illustrated web 2 on the delivery conveyor belt 4.
  • the superstructure 18 moves in each case in the same direction, on average only half as fast as the laying carriage 6. It is also taken into account that the laying carriage 6 in the region of its reversal position must be decelerated to a stop and accelerated again.
  • the card web is fed at a variable speed, for example because a cyclically operating drafting arrangement (not shown) is arranged in front of the web laying machine 2, which produces an alternating thickness in the card web for the purpose of achieving a transverse profiling of the laid web, by means of independent control the movement of superstructure 18 and laying carriage 6 in known Way a Florbahnbuff ceremonies be made within the batt 2.
  • a cyclically operating drafting arrangement (not shown) is arranged in front of the web laying machine 2, which produces an alternating thickness in the card web for the purpose of achieving a transverse profiling of the laid web
  • a total of three belts and the delivery conveyor belt 4 are contained in the fleece layer 2.
  • the invention can also be applied to all other nonwoven layers, i.a. those with two straps and one despatch conveyor.
  • the invention is also applicable to opposite Leger, in which the superstructure 18 and the carriage 6 move in opposite directions, and on Steilarmvlies.
  • Allen nonwoven fabric 2 has in common that the laying carriage 6 is braked at the reversal points of its movement to a stop and then has to be accelerated again in the opposite direction. During this deceleration and acceleration phase, the speed of the pile web deposit is correspondingly reduced in modern fleece layers 2 in order to avoid edge thickening in the laid fleece.
  • the delivery conveyor 4 is adapted in a controlled manner to this cycle of movement and is thus at the times when the laying carriage 6 is braked and accelerated in the opposite direction, also correspondingly slower. This is necessary in order to ensure a precise positional closure of the card web layers also at the edges of the web. If the delivery conveyor 4 continued to run at a constant speed, this would not be possible. The speed of the delivery conveyor belt 4 can drop to zero. Overall, therefore, for the delivery conveyor belt 4 a clocked movement with variable speed gradients.
  • Fig. 2 is the fleece layer off Fig. 1 shown in a rotated by 90 ° degree side view.
  • the delivery conveyor belt 4 which is once dotted in this drawing in two different possible positions and once shown by dashed lines, runs here in the region of its upper run from left to right and leads the laid web (not shown) to a downstream hardening device 20, here as a needle machine is trained.
  • any other solidifying means 20 may be used, for example, a hydroentangling apparatus.
  • the delivery conveyor belt 4 extends into the solidification device 20. It is likewise possible for the delivery conveyor belt 4 to transfer the nonwoven to a feed belt for the solidification device 20.
  • Fig. 2 Upper carriage 18 and laying carriage 6 of the webbing 2 not shown.
  • the delivery conveyor 4 is a slat with a plurality of Crossbars 22 (see Fig. 3a and 3b ) educated. This allows a considerable mobility between the individual crossbars 22 and thus an adaptation to any type of curve of the delivery conveyor belt 4, wherein at the same time the laid nonwoven fabric a compact base is supplied.
  • a first drive means 24 is provided, which drives the delivery conveyor belt 4 with variable speed.
  • the first drive device 24 preferably has a toothed drive roller or a plurality of parallel drive gears 26, which are preferably partially wrapped by the delivery conveyor belt 4. In any case, a secure connection between the drive roller 26 and the delivery conveyor belt 4 must exist.
  • the teeth of the drive roller 26 and the individual drive gears are arranged spaced from each other.
  • the control of the first drive device 24 is carried out in accordance with the above-described course of the clocked movement of the Abendertransportbands 4, which is determined by the course of movement of the laying carriage 6.
  • the controller may be integrated in the control of the web layer 2.
  • the first drive means 24 thus ensures the promotion of the endlessly circulating delivery conveyor belt 4 with variable speed.
  • the first drive device 24 also has an endlessly circulating transport means 28, which is also suitable for accompanying at least a portion of the upper run of the delivery conveyor belt 4 in the conveying direction.
  • This endlessly circulating transporting means 28 may be configured in various forms of a band, which will be described below with reference to FIG Fig. 3a and 3b will be discussed in more detail. It is important, however, that there is a frictional or positive connection between the endlessly circulating transport means 28 and the delivery conveyor belt 4.
  • the endlessly circulating transport means 28 is preferably guided in a kind of rectangle around four guide rollers 30, 32, 34, 36, of which at least one must be driven.
  • the drive of this at least one guide roller 30 is usually synchronized with the drive of the drive roller 26. In a simple way, this is achieved by connecting the drive roller 26 and the driven guide roller 30 by means of a circulating chain 38. All these measures serve to promote the portion of the upper run of the delivery conveyor belt 4 in a safe and guided manner with variable speed.
  • a drive roller 26 and some parallel drive gears 26 are provided, which are arranged in the left outer region, ie farthest from the solidification device 20. It is also possible, the drive gears 26 in an area where in Fig. 2 the deflecting roller 34 is shown, or to provide two or more arrangements of a plurality of parallel drive gears 26, for example, at the in Fig. 2 indicated by reference numeral 26 and in an area in which in Fig. 2 the guide roller 34 is outlined.
  • the endlessly circulating transport means 28 may be omitted under certain circumstances, and instead the upper strand of the delivery conveyor belt 4 may be guided, for example, on a smooth surface as possible.
  • the guide rollers 30, 32, 34, 36 may be formed as arrangements of a plurality of gears.
  • a second drive means 40 is provided, which is also formed in the example shown here as a toothed drive roller or as a plurality of parallel gears, which are partially wrapped by the delivery conveyor belt 4.
  • the second drive means 40 is located at the point of the overall apparatus which is closest to the solidification means 20.
  • the second drive device 40 is correlated with the pull-in speed of the solidification device 20 and thus shows a different speed profile than the first drive device 24.
  • the second drive device 40 is driven continuously and preferably also at constant speed, since this corresponds to the current standard of supply to solidification devices 20 , But it can also be programmed with a variable speed feed.
  • a slack of the delivery conveyor belt 4 is thus made possible by the overall device, which serves as storage for the different speeds of the first drive device 24 and the second drive device 40. It is important here that the drive devices 24, 40 are controlled in such a way that the speed differences cancel out on average, so that the slack is neither too great nor too small.
  • the extreme case of a missing slack of the delivery conveyor belt 4 is shown with dotted lines, while with dashed lines a certain slack of the delivery conveyor belt 4 is outlined.
  • the preferably freely suspended lower strand of the delivery conveyor belt 4 raises and lowers in accordance with the sag of the portion of the upper strand of the delivery conveyor belt 4.
  • the delivery conveyor belt 4 is designed as a slat strip with transverse slats 22 and has inwardly projecting teeth 42.
  • the teeth 42 are preferably snapped onto textile straps 44, which are preferably made of polyester fabric and are approximately 40 mm wide in one embodiment.
  • the circulating transport means 28 consists in Fig. 3a at least one double toothed belt, in which the outwardly projecting teeth 46 are in engagement with the inwardly projecting teeth 42 of the delivery conveyor belt 4 and take them along.
  • the connecting element between the teeth 46 is preferably a textile belt 48 which is formed as well as the textile belt 44.
  • chains can be used.
  • the endlessly circulating transport means 28 is designed as a simple toothed belt, in which the teeth 50 protrude exclusively inwards and there is a frictional connection between the hard back of the toothed belt and the inwardly projecting teeth 42 of the delivery conveyor belt 4.
  • the toothed belt 28 is made of PVC or polyamide, while the inwardly projecting teeth 42 of the delivery conveyor belt 4 consist of polyamide.
  • an apparatus and a method for transferring a nonwoven fabric from a nonwoven layerer to a solidifying device is provided, whereby the different speed profiles of the delivery conveyor belt 4 of the crosslapper 2 and the intake of the solidifying device 40 can be easily compensated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Nonwoven Fabrics (AREA)
  • Replacement Of Web Rolls (AREA)
  • Advancing Webs (AREA)

Claims (13)

  1. Dispositif de transfert d'un non-tissé d'un étaleur-nappeur (2) sur un dispositif de renforcement (20), comprenant une bande transporteuse de sortie (4) tournant sans fin de l'étaleur-nappeur (2) pour la réception des nappes de voile déposées sur cette dernière en un non-tissé à l'intérieur de l'étaleur-nappeur (2), au moins un premier dispositif d'entraînement (24) étant prévu pour l'entraînement de la bande transporteuse de sortie (4) à vitesse variable,
    caractérisé en ce que
    un second dispositif d'entraînement (40) pour l'entraînement de la bande transporteuse de sortie (4) à vitesse essentiellement constante est prévu à proximité, par rapport au premier dispositif d'entraînement (24), du dispositif de renforcement (20), et un entreposage en fléchissement de la bande transporteuse de sortie (4) est réalisé entre le premier dispositif d'entraînement (24) et le second dispositif d'entraînement (40).
  2. Dispositif suivant la revendication 1, caractérisé en ce que la bande transporteuse de sortie (4) est réalisée sous forme de bande à lattes avec une multiplicité de lattes transversales (22).
  3. Dispositif suivant l'une des revendications 1 et 2, caractérisé en ce que le second dispositif d'entraînement (40) présente un cylindre moteur denté ou plusieurs roues motrices dentées parallèles.
  4. Dispositif suivant l'une des revendications précédentes, caractérisé en ce que le premier dispositif d'entraînement (24) présente un cylindre moteur denté ou plusieurs roues motrices dentées parallèles (26).
  5. Dispositif suivant l'une des revendications précédentes, caractérisé en ce que le premier dispositif d'entraînement (24) présente un moyen de transport (28) tournant sans fin, pourvu d'un brin supérieur assemblé par coopération de forme ou force de friction avec un brin supérieur de la bande transporteuse de sortie (4).
  6. Dispositif suivant l'une des revendications précédentes, caractérisé en ce que la bande transporteuse de sortie (4) présente des dents (42) qui sont en saillie vers l'intérieur.
  7. Dispositif suivant la revendication 6, caractérisé en ce que le moyen de transport (28), tournant sans fin, présente des dents (46) qui dépassent vers l'extérieur et sont en prise, dans la zone du brin supérieur, avec les dents (42) de la bande transporteuse de sortie (4).
  8. Procédé de transfert d'un non-tissé d'un étaleur-nappeur (2) sur un dispositif de renforcement (20), comprenant les étapes suivantes :
    - préparation d'un étaleur-nappeur (2) avec une bande transporteuse de sortie (4) pour recevoir les nappes de voile, déposées sur cette dernière en un non-tissé à l'intérieur de l'étaleur-nappeur (2), et préparation d'un dispositif de renforcement (20) pour le non-tissé en aval de l'étaleur-nappeur (2) ;
    - entraînement de la bande transporteuse de sortie (4) à vitesse variable au moyen d'au moins un premier dispositif d'entraînement (24) ;
    caractérisé par
    l'entraînement continu de la bande transporteuse de sortie (4) au moyen d'un second dispositif d'entraînement (40), disposé à proximité du dispositif de renforcement (20) par rapport au premier dispositif d'entraînement (24), pour la réalisation d'un entreposage en fléchissement dans une section comprise entre le premier dispositif d'entraînement (24) et le second dispositif d'entraînement (40).
  9. Procédé suivant la revendication 8, caractérisé en ce que le premier dispositif d'entraînement (24) présente un moyen de transport (28) tournant sans fin, dont le brin supérieur est assemblé par force de friction avec une section du brin supérieur de la bande transporteuse de sortie (4) et entraîne ce dernier par-dessus.
  10. Procédé suivant la revendication 8, caractérisé en ce que le premier dispositif d'entraînement (24) présente un moyen de transport (28) tournant sans fin, dont le brin supérieur est assemblé par coopération de forme avec une section du brin supérieur de la bande transporteuse de sortie (4) et entraîné ce dernier par-dessus.
  11. Procédé suivant la revendication 10, caractérisé en ce que la coopération de forme s'effectue par l'intermédiaire de dents (42, 46).
  12. Procédé suivant l'une des revendications 9 à 11, caractérisé en ce que le moyen de transport (28) tournant sans fin est entraîne à au moins la même vitesse que celle d'un premier cylindre moteur denté ou d'un premier agencement de premières roues dentées motrices (26) parallèles.
  13. Procédé suivant la revendication 12, caractérisé en ce que le moyen de transport (28) tournant sans fin est entraîné à une vitesse légèrement supérieure à celle d'un premier cylindre moteur denté ou d'un premier agencement de roues dentées motrices parallèles (26).
EP08165977A 2008-10-07 2008-10-07 Dispositif et procédé destinés à la transmission d'un non-tissé Active EP2175056B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP08165977A EP2175056B1 (fr) 2008-10-07 2008-10-07 Dispositif et procédé destinés à la transmission d'un non-tissé
AT08165977T ATE543932T1 (de) 2008-10-07 2008-10-07 Vorrichtung und verfahren zur übergabe eines vlieses
US12/574,514 US8365370B2 (en) 2008-10-07 2009-10-06 Device and method for transferring nonwoven material
CN2009101729978A CN101713122B (zh) 2008-10-07 2009-10-09 输送纤维网的装置和方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08165977A EP2175056B1 (fr) 2008-10-07 2008-10-07 Dispositif et procédé destinés à la transmission d'un non-tissé

Publications (2)

Publication Number Publication Date
EP2175056A1 EP2175056A1 (fr) 2010-04-14
EP2175056B1 true EP2175056B1 (fr) 2012-02-01

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ID=40343488

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EP08165977A Active EP2175056B1 (fr) 2008-10-07 2008-10-07 Dispositif et procédé destinés à la transmission d'un non-tissé

Country Status (4)

Country Link
US (1) US8365370B2 (fr)
EP (1) EP2175056B1 (fr)
CN (1) CN101713122B (fr)
AT (1) ATE543932T1 (fr)

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DE202013104946U1 (de) 2013-11-05 2015-02-06 Autefa Solutions Germany Gmbh Vliesleger
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EP3015577A1 (fr) * 2014-10-27 2016-05-04 Oskar Dilo Maschinenfabrik KG Étaleur-nappeur
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CN106437156B (zh) * 2016-10-10 2019-03-15 湖北银土建设工程有限公司 一种无纺布施工装置
DE102017102468A1 (de) * 2017-02-08 2018-08-09 TRüTZSCHLER GMBH & CO. KG Speichertisch für einen Vliesleger und Verfahren zum Betrieb eines Speichertisches
FR3063742B1 (fr) 2017-03-09 2021-06-18 Andritz Asselin Thibeau Dispositif de transfert et/ou d'introduction d'une nappe de fibres dans une installation de consolidation, notamment une aiguilleteuse
EP3650595B1 (fr) * 2018-11-09 2021-05-19 Oskar Dilo Maschinenfabrik KG Dispositif de compensation
CN109665293A (zh) * 2019-02-27 2019-04-23 岳西十行机械设备有限公司 一种纤维连续化卸料方法
CN114481438B (zh) * 2022-02-16 2022-08-09 嘉善爱欧特服装有限公司 一种防寒服饰用高回弹性保暖絮片的铺设设备

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DE502006000950D1 (de) * 2006-02-01 2008-07-31 Dilo Kg Maschf Oskar Vorrichtung zum Legen eines Vlieses
EP1975286A1 (fr) * 2007-03-30 2008-10-01 Oskar Dilo Maschinenfabrik KG Etaleur-nappeur
WO2008154303A1 (fr) * 2007-06-07 2008-12-18 Velcro Industries B.V. Aiguilletage de boucles en de feuilles de support

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US8365370B2 (en) 2013-02-05
CN101713122A (zh) 2010-05-26
CN101713122B (zh) 2011-08-17
ATE543932T1 (de) 2012-02-15
EP2175056A1 (fr) 2010-04-14
US20100084248A1 (en) 2010-04-08

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