EP1776497B1 - Device for loosening a web of textile material - Google Patents

Device for loosening a web of textile material Download PDF

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Publication number
EP1776497B1
EP1776497B1 EP05767783A EP05767783A EP1776497B1 EP 1776497 B1 EP1776497 B1 EP 1776497B1 EP 05767783 A EP05767783 A EP 05767783A EP 05767783 A EP05767783 A EP 05767783A EP 1776497 B1 EP1776497 B1 EP 1776497B1
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EP
European Patent Office
Prior art keywords
web
air
material web
conveyor belt
strands
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.)
Not-in-force
Application number
EP05767783A
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German (de)
French (fr)
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EP1776497A1 (en
Inventor
Michael Niklaus
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.)
Strahm Textile Systems AG
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Strahm Textile Systems AG
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Publication date
Application filed by Strahm Textile Systems AG filed Critical Strahm Textile Systems AG
Publication of EP1776497A1 publication Critical patent/EP1776497A1/en
Application granted granted Critical
Publication of EP1776497B1 publication Critical patent/EP1776497B1/en
Not-in-force legal-status Critical Current
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B13/00—Treatment of textile materials with liquids, gases or vapours with aid of vibration
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C19/00—Breaking or softening of fabrics

Definitions

  • the invention relates to a device for loosening a textile material web according to the preamble of patent claim 1.
  • Textile material webs such as nonwovens, woven fabrics, knitted fabrics, etc., must be subjected to further processing after their production before they can be further processed. Such treatments may involve heat treatments, e.g.shrinking or dyeing, but also finishes can be applied to change the physical or optical properties of the web. Fabrics that are processed into terry or velvet, for example, are treated in a loosening process to set up the fibers or fiber loops protruding from the fabric backing.
  • An object of the present invention is to provide a device for loosening textile webs, with which the amplitude and frequency of the shaking movements in a simple manner and is adjustable.
  • a further object of the invention is to thermally process the material web during the loosening process, ie to cool it or to heat it and / or to carry out moistening or drying. This object is achieved by a device having the features according to claim 1. Advantageous embodiments of the invention are described in more detail in the dependent claims.
  • FIG. 1 is schematically a treatment plant 1 with a housing 3 visible.
  • a first conveyor belt 5 and in the upper part of a second conveyor belt 7 is visible in the lower part.
  • the conveyor belts 5, 7 are drivable and run synchronously, for example, four guide rollers 9 each.
  • the two opposite strands 5a and 7a are substantially parallel to each other and carry a web 11 of a textile fabric.
  • the distance of the strands 5.7 is greater than the thickness d of the material web 11.
  • the material web 11 is conveyed through the underlying conveyor belt 5 in the direction of the arrow T through the treatment plant 1.
  • the conveyor belts 5, 7 are permeable to air and may consist of gauze or latticed material.
  • slot-shaped openings 13 and 15 are blown through the air substantially perpendicular to the strand 5a, 7a or sucked away from this.
  • the slots 13,15 form blowing or suction nozzles.
  • the slot-shaped openings 13,15 are rearwardly connected to pressure lines 17 and suction lines 19. Laterally of the slots 13 substantially parallel to the surface of the strands 5a, 7a extending baffles 21 are formed.
  • the supply and the discharge of air through the slit-shaped openings 13,15 takes place continuously, so that no mechanical means for reversing or for generating a pulsation are necessary. Since the conveyor belts are 5.7 permeable to air, the supplied, the vibration-generating air can also be used for humidification or for drying or for heating or cooling of the web 11. Depending on the distance of the strands 5 a, 7 a from the slot-shaped openings 13, 15 and / or with the air injected per unit of time, the amplitude and / or frequency of the vibrations can be switched on and off. Instead of slot-shaped nozzles arranged in rows round nozzles can be used. In practice, can be used by appropriate modification of the air outlet openings known nozzle boxes.
  • the transport of the material web takes place exclusively by the movement of the conveyor belts 5, 7 in the direction of the arrow T.

Abstract

According to the invention, a web of material (11) is guided in a sandwich-type manner between two belt conveyors (5, 7) in a processing plant (1) for webs of textile material (11). Air is blown through slot-shaped openings (13) or nozzles onto the rear sides of the two opposite strands (5a, 7a) of the belt conveyors (5, 7) while air is suctioned off at a distance therefrom by means of adequate slot-shaped openings (15) which face each other. The delivered air that accelerates on the surface of the strands (5a, 7a) or on the web of material (11) is deflected perpendicular to the direction of travel and temporarily sucks in the web of material (11) at the top or bottom, resulting in the textile material being loosened.

Description

Gegenstand der Erfindung ist eine Vorrichtung zum Lockern einer textilen Materialbahn gemäss Oberbegriff des Patentanspruchs 1.The invention relates to a device for loosening a textile material web according to the preamble of patent claim 1.

Textile Materialbahnen wie Vliese, Gewebe, Gewirke etc. müssen nach deren Herstellung weiteren Behandlungen unterworfen werden, bevor sie weiter verarbeitet werden können. Solche Behandlungen können Wärmebehandlungen, z.B. Schrumpfen oder Färben sein, es können aber auch Appreturen aufgebracht werden, um die physikalischen oder optischen Eigenschaften der Materialbahn zu verändern. Gewebe, die beispielsweise zu Frottee oder Samt verarbeitet werden, werden in einem Lockerungsprozess behandelt, um die von der Gewebeunterlage abstehenden Fasern oder Faserschlaufen aufzustellen.Textile material webs such as nonwovens, woven fabrics, knitted fabrics, etc., must be subjected to further processing after their production before they can be further processed. Such treatments may involve heat treatments, e.g. Shrinking or dyeing, but also finishes can be applied to change the physical or optical properties of the web. Fabrics that are processed into terry or velvet, for example, are treated in a loosening process to set up the fibers or fiber loops protruding from the fabric backing.

Es ist bekannt, in einer Behandlungsanlage mittels Rüttelwalzen die Materialbahn in Schwingung zu setzen und dadurch die Fasern der Materialbahn aufzustellen und das Material schrumpfen zu lassen. Solche mechanischen Rüttelvorrichtungen sind aufwändig und müssen, da sie rein mechanisch betrieben werden, entsprechend mit Schmiermitteln versorgt werden.
Aus der US-A-4,965,918 Oberbegriff des Anspruches 1 ist ein Verfahren und eine Vorrichtung zum Behandeln von textilen Warenbahnen bekannt. Die Warenbahn wird zwischen den einander gegenüberliegenden Trumen zweier Transportbänder durch die Anlage geführt. Abwechslungsweise wird durch Luftdüsen mit pilzförmigen Köpfen Luft von oben in die Warenbahn eingeblasen und unten gegenüberliegend der Einblasstelle durch eine pilzförmige Düse abgesaugt. In Transportrichtung gesehen daneben wird die Luft von unten nach oben geführt, so dass die Warenbahn einen sinusförmigen Verlauf einnimmt. Mit einer solchen Vorrichtung können Warenbahnen getrocknet werden; ein Lockern ist jedoch als Nebeneffekt nur in ganz beschränktem Umfange möglich, da die Frequenz, mit der die Warenbahn auf- und niedergeblasen ist, zu klein ist, um einen Lockerungseffekt zu erhalten.
Eine Aufgabe der vorliegenden Erfindung ist die Schaffung einer Vorrichtung zum Lockern von textilen Materialbahnen, mit welcher die Amplitude und Frequenz der Rüttelbewegungen auf einfache Weise ein- und verstellbar ist.
Eine weitere Aufgabe der Erfindung besteht darin, während des Lockerungsprozesses die Materialbahn thermisch zu bearbeiten, d.h. zu kühlen oder zu beheizen und/oder eine Befeuchtung oder Trocknung durchführen zu können.
Gelöst wird diese Aufgabe durch eine Vorrichtung mit den Merkmalen gemäss dem Patentanspruchs 1. Vorteilhafte Ausgestaltungen der Erfindung sind in den abhängigen Ansprüchen näher umschrieben.
Es gelingt durch gleichzeitiges Zuführen von Luft durch Düsen an sich gegenüberliegenden Stellen der Materialbahn und durch Absaugen oder Entweichenlassen der zugeführten Luft in einem benachbarten Bereich zur Luftzuführung die Materialbahn zwischen den Trumen eines Transportbandpaares in Schwingung zu versetzen. Dabei wird die Materialbahn zwischen den beiden Trumen hin und her geschleudert. Die für die Bewegung der Materialbahn notwendige Luft kann als heisse Luft gleichzeitig zur Erhöhung der Schrumpfung verwendet werden oder als kalte Luft zur Kühlung und/oder Trocknung der Materialbahn fungieren.It is known to vibrate the material web in a treatment plant by means of vibrating rollers and thereby to set up the fibers of the material web and to allow the material to shrink. Such mechanical vibrating devices are complex and must, since they are operated purely mechanically, according to Lubricants are supplied.
From the US-A-4,965,918 The preamble of claim 1 is a method and an apparatus for treating textile webs known. The web is guided between the opposing Trumen two conveyor belts through the system. Alternately, air is injected from above into the web through air nozzles with mushroom-shaped heads and sucked out of the bottom of the injection point through a mushroom-shaped nozzle. In the transport direction seen next to the air is guided from bottom to top, so that the web assumes a sinusoidal course. With such a device webs can be dried; However, a loosening is possible as a side effect only to a very limited extent, since the frequency with which the web is blown up and down, too small to obtain a relaxation effect.
An object of the present invention is to provide a device for loosening textile webs, with which the amplitude and frequency of the shaking movements in a simple manner and is adjustable.
A further object of the invention is to thermally process the material web during the loosening process, ie to cool it or to heat it and / or to carry out moistening or drying.
This object is achieved by a device having the features according to claim 1. Advantageous embodiments of the invention are described in more detail in the dependent claims.
It is possible by simultaneous supply of air through nozzles at opposite points of the material web and by sucking or releasing the air supplied in an adjacent area for air supply to move the web between the runs of a conveyor belt pair in vibration. The material web is thrown back and forth between the two dreams. The necessary for the movement of the web air can be used as hot air at the same time to increase the shrinkage or as cold air for cooling and / or Dry the material web act.

Anhand eines illustrierten Ausführungsbeispieles wird die Erfindung näher erläutert. Es zeigen

Figur 1
einen Vertikalschnitt durch eine schematisch dargestellte Behandlungsvorrichtung,
Figur 2
einen Vertikalschnitt längs Linie II-II in Figur 1 und
Figur 3
einen Horizontalschnitt längs Linie III-III in Figur 2 durch die Vorrichtung.
Reference to an illustrated embodiment, the invention is explained in detail. Show it
FIG. 1
a vertical section through a schematically illustrated treatment device,
FIG. 2
a vertical section along line II-II in FIG. 1 and
FIG. 3
a horizontal section along line III-III in FIG. 2 through the device.

In Figur 1 ist schematisch eine Behandlungsanlage 1 mit einem Gehäuse 3 sichtbar. Im Innern des Gehäuses 3 ist im unteren Teil ein erstes Transportband 5 und im oberen Teil ein zweites Transportband 7 sichtbar. Die Transportbänder 5,7 sind antreibbar und laufen synchron beispielsweise je um vier Umlenkrollen 9 um. Die beiden einander gegenüberliegenden Trume 5a und 7a verlaufen im wesentlichen parallel zueinander und tragen eine Materialbahn 11 aus einem textilen Flächengebilde. Der Abstand der Trume 5,7 ist grösser als die Dicke d der Materialbahn 11. Die Materialbahn 11 wird durch das untenliegende Transportband 5 in Richtung des Pfeils T durch die Behandlungsanlage 1 hindurchgefördert. Die Transportbänder 5,7 sind luftdurchlässig und können aus Gaze oder gitterartigem Material bestehen.In FIG. 1 is schematically a treatment plant 1 with a housing 3 visible. In the interior of the housing 3, a first conveyor belt 5 and in the upper part of a second conveyor belt 7 is visible in the lower part. The conveyor belts 5, 7 are drivable and run synchronously, for example, four guide rollers 9 each. The two opposite strands 5a and 7a are substantially parallel to each other and carry a web 11 of a textile fabric. The distance of the strands 5.7 is greater than the thickness d of the material web 11. The material web 11 is conveyed through the underlying conveyor belt 5 in the direction of the arrow T through the treatment plant 1. The conveyor belts 5, 7 are permeable to air and may consist of gauze or latticed material.

An der Rückseite der beiden Trume 5a,7a befinden sich schlitzförmige Öffnungen 13 und 15 (vergleiche Figur 3), durch die Luft im wesentlichen senkrecht auf das Trum 5a,7a geblasen oder von diesem weggesaugt wird. Die Schlitze 13,15 bilden Blas- bzw. Saugdüsen. Die schlitzförmigen Öffnungen 13,15 sind rückwärtig mit Druckleitungen 17 bzw. Saugleitungen 19 verbunden. Seitlich der Schlitze 13 sind im wesentlichen parallel zur Oberfläche der Trume 5a,7a verlaufende Leitbleche 21 ausgebildet. Diese liegen in geringem Abstand zur Oberfläche der Trume 5a,7a und bewirken, dass die durch die schlitzförmigen Öffnungen 13 eingeblasene Luft an den Trumen 5a,7a umgelenkt wird und von dort mit erhöhter Geschwindigkeit parallel zu den Trumen 5a,7a zu den absaugenden Öffnungen 15 geführt und abgesaugt wird. Die mit hoher Geschwindigkeit von den Luft zuführenden öffnungen 13 zu den Luft abführenden Öffnungen 15 geförderte Luft erzeugt einen Unterdruck zwischen der Oberfläche der Trume 5a,7a und zieht die Materialbahn 11 satt an eines der beiden Trume 5a,7a an (Coanda-Effekt). Im Bereich der mit einer Absaugung verbundenen Öffnungen 13 wird die anziehende Wirkung kurzzeitig aufgehoben und die Materialbahn 11 löst sich vom jeweiligen Trum 5a,7a und nimmt wieder einen grösseren Abstand zu den Leitblechen 21 ein. Anschliessend erfolgt wieder eine Anziehung, so dass die Materialbahn 1.1 zwischen den Trumen 5a,7a eine Wellenbewegung ausführt, also in eine zur Transportrichtung T senkrecht verlaufende Schwingung versetzt wird. Diese Schwingungen werden von beiden Seiten in die Materialbahn 11 eingetragen und lockern diese. Die Wechselwirkung der Anziehung der Materialbahn 11 erfolgt rein zufällig. Es wird je nach der Distanz der Oberflächen der Materialbahn 11 entweder die oben oder die unten angeordnete Düse wirksam. Die Zufuhr und die Abfuhr von Luft durch die schlitzförmigen Öffnungen 13,15 erfolgt kontinuierlich, so dass keine mechanischen Mittel zur Umsteuerung oder zur Erzeugung einer Pulsation notwendig sind. Da die Transportbänder 5,7 luftdurchlässig ausgebildet sind, kann die zugeführte, die Vibration erzeugende Luft auch zur Befeuchtung oder zur Trocknung bzw. zur Erwärmung oder Kühlung der Materialbahn 11 eingesetzt werden. Je nach Abstand der Trume 5a,7a von den schlitzförmigen Öffnungen 13,15 und/oder mit der pro Zeiteinheit eingedüsten Luft kann die Amplitude und/oder Frequenz der Schwingungen ein- und verstellt werden. Anstelle von schlitzförmigen Düsen können auch in Reihen angeordnete runde Düsen eingesetzt werden.
In der Praxis können durch entsprechende Modifikation der Luftaustrittsöffnungen bekannte Düsenkästen verwenden werden.At the back of the two strands 5a, 7a are slot-shaped openings 13 and 15 (see FIG. 3 ) is blown through the air substantially perpendicular to the strand 5a, 7a or sucked away from this. The slots 13,15 form blowing or suction nozzles. The slot-shaped openings 13,15 are rearwardly connected to pressure lines 17 and suction lines 19. Laterally of the slots 13 substantially parallel to the surface of the strands 5a, 7a extending baffles 21 are formed. These are located at a small distance from the surface of the strands 5a, 7a and cause the blown through the slit-shaped openings 13 air is deflected at the strands 5a, 7a and from there at an increased speed parallel to the strands 5a, 7a to the suction openings 15th is guided and sucked off. The high-speed air supplied from the openings 13 to the air-discharging openings 15 conveyed air creates a negative pressure between the surface of the strands 5a, 7a and pulls the material web 11 fed to one of the two strands 5a, 7a (Coanda effect). In the area of the openings 13 connected to a suction, the attractive effect is temporarily removed and the material web 11 separates from the respective strand 5a, 7a and again occupies a greater distance from the guide plates 21. This is followed by an attraction, so that the material web 1.1 between the strands 5a, 7a performs a wave motion, ie in a to Transport direction T perpendicular vibration is added. These vibrations are entered from both sides in the web 11 and loosen this. The interaction of the attraction of the material web 11 is purely coincidental. Depending on the distance of the surfaces of the web 11, either the top or bottom nozzle will be effective. The supply and the discharge of air through the slit-shaped openings 13,15 takes place continuously, so that no mechanical means for reversing or for generating a pulsation are necessary. Since the conveyor belts are 5.7 permeable to air, the supplied, the vibration-generating air can also be used for humidification or for drying or for heating or cooling of the web 11. Depending on the distance of the strands 5 a, 7 a from the slot-shaped openings 13, 15 and / or with the air injected per unit of time, the amplitude and / or frequency of the vibrations can be switched on and off. Instead of slot-shaped nozzles arranged in rows round nozzles can be used.
In practice, can be used by appropriate modification of the air outlet openings known nozzle boxes.

Der Transport der Materialbahn erfolgt ausschliesslich durch die Bewegung der Transportbänder 5,7 in Richtung des Pfeiles T.The transport of the material web takes place exclusively by the movement of the conveyor belts 5, 7 in the direction of the arrow T.

Claims (5)

  1. Device for loosening a web of textile material (11) in a processing plant (1), comprising at least one conveyor belt (5, 7) which can be driven in order to feed the material web (11) through the processing plant (1) and a means for shaking the material web (11), and blower nozzles (17) and suction nozzles (19) are disposed in an alternating arrangement on the rear face of the strand (5a, 7a) supporting the material web (11), characterised in that a blower nozzle (13) always lies opposite a blower nozzle (13) and a suction nozzle (15) lies opposite every suction nozzle (15).
  2. Device as claimed in claim 1, characterised in that a second conveyor belt (7) with a second strand (7a) lying opposite the strand (5a) of the first conveyor belt (5) circulates parallel with and at a distance apart from the first conveyor belt (5).
  3. Device as claimed in claim 1 or 2, characterised in that the openings of the blower nozzles (17) are laterally surrounded by a baffle plate (21) lying parallel with the strand (5a).
  4. Device as claimed in one of claims 2 to 3, characterised in that the distance between the strands (5a, 7a) of the conveyor belts (5, 7) is bigger than the thickness (d) of the material web (11).
  5. Device as claimed in one of claims 1 to 4, characterised in that the suction nozzles are provided in the form of slot-shaped openings (13) or in rows of circular openings.
EP05767783A 2004-08-10 2005-08-09 Device for loosening a web of textile material Not-in-force EP1776497B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH13232004 2004-08-10
PCT/CH2005/000462 WO2006015508A1 (en) 2004-08-10 2005-08-09 Device for loosening a web of textile material

Publications (2)

Publication Number Publication Date
EP1776497A1 EP1776497A1 (en) 2007-04-25
EP1776497B1 true EP1776497B1 (en) 2009-09-02

Family

ID=34980256

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05767783A Not-in-force EP1776497B1 (en) 2004-08-10 2005-08-09 Device for loosening a web of textile material

Country Status (5)

Country Link
EP (1) EP1776497B1 (en)
AT (1) ATE441753T1 (en)
BR (1) BRPI0514266A (en)
DE (1) DE502005008064D1 (en)
WO (1) WO2006015508A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2020457A3 (en) * 2007-07-28 2009-04-15 Strahm Hi-Tex Systems AG Method and facility for continuous treatment of strips of textile goods

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1084101B (en) * 1977-06-08 1985-05-25 Essico S R L CONTINUOUS DRIER FOR FABRICS
IT1099872B (en) * 1978-10-27 1985-09-28 Sperotto Spa MACHINE FOR DRYING FABRICS, IN PARTICULAR OF JERSEY TYPE KNITTED FABRICS
US4409709A (en) * 1979-05-16 1983-10-18 Sando Iron Works Co., Ltd. Apparatus for continuous untwisting and crimping of a cloth
DE2951295A1 (en) * 1979-12-20 1981-06-25 Vepa AG, 4125 Riehen, Basel Fabric heat treatment unit - has jets along carrier to allow processing of wide variety of fabrics
DE3829988A1 (en) * 1988-09-03 1990-03-15 Mtm Obermaier Gmbh & Co Kg METHOD AND DEVICE FOR TREATING TEXTILE TRACKS
DE10036058A1 (en) * 2000-07-25 2002-02-21 Monforts Textilmaschinen Gmbh relaxation dryer

Also Published As

Publication number Publication date
EP1776497A1 (en) 2007-04-25
BRPI0514266A (en) 2008-06-10
WO2006015508A1 (en) 2006-02-16
DE502005008064D1 (en) 2009-10-15
ATE441753T1 (en) 2009-09-15

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