EP2420602A2 - Fibre catching device - Google Patents

Fibre catching device Download PDF

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Publication number
EP2420602A2
EP2420602A2 EP11177969A EP11177969A EP2420602A2 EP 2420602 A2 EP2420602 A2 EP 2420602A2 EP 11177969 A EP11177969 A EP 11177969A EP 11177969 A EP11177969 A EP 11177969A EP 2420602 A2 EP2420602 A2 EP 2420602A2
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EP
European Patent Office
Prior art keywords
fibers
roller
discharge roller
forming machine
working width
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Granted
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EP11177969A
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German (de)
French (fr)
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EP2420602A3 (en
EP2420602B1 (en
Inventor
Hubert Hergeth
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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
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/02—Carding machines
    • D01G15/12—Details
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/02—Carding machines
    • D01G15/72—Arrangements for returning waste to be re-carded

Definitions

  • a worker roll picks up fibers, especially fiber patties, from the drum or drum and transfers them to the inverter, which feeds them back to the roll.
  • the web forming machine is fed with a fibrous mat having a thick location, as the web passes through the web forming machine, this thick spot is somewhat elongated by the worker's rollers but not completely eliminated.
  • the fleece is uneven and appears "cloudy”.
  • the object of the invention is to provide a device which increases the uniformity of the web and requires fewer worker turning rolls.
  • a special embodiment of the catching roller is a roller of different diameter along the working width of the roller. This is advantageous if you want to provide the fleece with a special profile, z. B. thinner or thicker at the edges, or slowly towards the center thicker to improve the processing.
  • a similar effect can be achieved by the hold-down element according to claim 7) and 8) is not carried out as with a knife 13) equidistant to the drum over the working width, but has an edge whose distance to the fiber-advancing roller varies over the working width. This can also be done by a subdivision of the knife and the distance of the individual knife segments can be set manually or by an actuator.
  • the invention is based on the Fig. 1 and 2 explained.
  • Fig. 1 shows an example of a nonwoven imaging machine.
  • a fiber mat 1) is fed via a so-called feed roller pair 2) to a licker-in 3). With a transfer roller 4) the fibers are transferred to a main drum 7). To the main drum 7) work rolls 5) and turning rolls 6) are arranged.
  • a doffer 8) takes over the fibers and forms a fleece. The fleece is removed from the trigger 9) from the doffer.
  • Fig. 2 Figure 3 shows the same machine with an additional discharge roll 10), which collects excess fibers and transfers them to a collection point such as a funnel 11).
  • the fibers are sucked through an opening 12) and fed back automatically by the discharge device to the fiber stream which forms the fiber mat.
  • This removal roller with suction can also be attached to other rollers or drums of the machine, for. B. on the main drum or on a working or turning roller. It can also be z. B. the turning roller be designed as a discharge roller by not the fibers of the associated drum 7.3 passes, but the fibers passes to an air stream or a conveyor belt.
  • the discharge roller is the lickerin 3), or Transfer rollers 4) from the licker to the main drum, or the main drum 7), or a work roll 5) or turning roll 6) adjacent and thus removes the fibers from this roll before the main part of the fibers of the the discharge roller associated drum or roller is passed.
  • the sketches a) and b) show the fiber mat and the fleece after the machine.
  • a hold-down element 13) adjustable to the roll 4) is attached at one point before the fibers reach the discharge roll.
  • the removal roller advantageously has a clothing with a neutral angle or a negative breast angle, so that the removed fibers come off well from the discharge roller and do not rotate. Its direction of rotation is equal to that of its associated roller or drum, from which the fibers are removed. Its peripheral speed is 0.6 to 2.0 times the peripheral speed of its associated roller or drum, but is preferably higher than the peripheral speed of its associated roller or drum.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Abstract

The device has a discharge roller and a recirculation unit, where the discharge roller is arranged adjacent to a roller of the fleece forming machine. The recirculation unit is connected with the fleece forming machine such that the removed fibers are supplied to the processed fibers before formation of the fiber mat (1). An independent claim is also included for a method for processing of staple fibers in a mat forming machine.

Description

An Maschinen mit walzenförmigen Arbeitselementen, die aus Stapelfasern ein Vlies bilden, sind zur Auflösung und Vergleichmäßigung mit Garnituren versehene Trommeln bzw. Tamboure gebräuchlich, die als Arbeiter-Wender bezeichnet werden. Siehe DIN 64118.On machines with roller-shaped working elements, which form a fleece from staple fibers, drums or reels equipped with sets are used for the dissolution and equalization, which are referred to as worker-turner. See DIN 64118.

In diesen Maschinen nimmt eine Arbeiterwalze Fasern, insbesondere Faserbatzen, von der Trommel bzw. dem Tambour auf und übergibt sie dem Wender, der sie wieder der Walze zuführt. Wird der Vliesbildemaschine eine Fasermatte mit einer dicken Stelle zugeführt, wird im Durchlauf der Fasern durch die Vliesbildemaschine diese dicke Stelle durch die Arbeiterwalzen etwas in die Länge gezogen, jedoch nicht vollständig eliminiert. Das Vlies ist ungleichmäßig und erscheint "wolkig".In these machines, a worker roll picks up fibers, especially fiber patties, from the drum or drum and transfers them to the inverter, which feeds them back to the roll. When the web forming machine is fed with a fibrous mat having a thick location, as the web passes through the web forming machine, this thick spot is somewhat elongated by the worker's rollers but not completely eliminated. The fleece is uneven and appears "cloudy".

Aufgabe der Erfindung ist es, eine Vorrichtung zu schaffen, die die Gleichmäßigkeit des Vlieses erhöht und weniger Arbeiter-Wender-Walzen benötigt.The object of the invention is to provide a device which increases the uniformity of the web and requires fewer worker turning rolls.

Es war zwar bekannt, die Vliesbildemaschine von Faserflug an einzelnen Stellen zu besaugen und diese Fasern zurückzuführen. Es ist bei Wollvorbereitungsmaschinen bekannt, mit einem Klettenschläger Kletten von der Trommel über die Arbeitsbreite wegzuschlagen und dann in den Abfall vorzuführen. Bei Baumwolldeckelkarden werden mit Wanderdeckeln großflächig Kurzfasern und Schmutz von der Trommel abgeführt und dem Abfall zugeführt. Bei der Vliesherstellung wurden derartige Maßnahmen bislang nicht vorgesehen. Zudem versuchte man bei diesen Verfahren, ungewollte Teile endgültig auszuschneiden. Bei der erfindungsgemäßen Faserfangvorrichtung möchte man die Fasern nicht ausschneiden, sondern der Verarbeitung wieder zuführen und eine Vergleichmäßigung des Vlieses erreichen.Although it was known to suck the fleece-forming machine of fiber fly at individual points and return these fibers. It is known in wool preparation machines to beat away with a burdock club from the drum over the working width and then show off in the waste. In the case of cotton cover card, short fibers and dirt are removed from the drum over a large area with revolving lids and fed to the waste. In the nonwoven production such measures have not been provided. In addition, attempts were made during these procedures to cut out unwanted parts finally. In the fiber-catching device according to the invention you do not want to cut the fibers, but perform the processing again and achieve a homogenization of the web.

Eine spezielle Ausführungsform der Fangwalze ist eine Walze mit unterschiedlichem Durchmesser entlang der Arbeitsbreite der Walze. Dies ist von Vorteil, wenn man das Vlies mit einem besonderen Profil versehen will, z. B. dünner oder dicker an den Rändern, oder langsam zur Mitte hin dicker verlaufend, um die Weiterverarbeitung zu verbessern.A special embodiment of the catching roller is a roller of different diameter along the working width of the roller. This is advantageous if you want to provide the fleece with a special profile, z. B. thinner or thicker at the edges, or slowly towards the center thicker to improve the processing.

Ein ähnlicher Effekt kann erzielt werden, indem das Niederhaltelement nach Anspruch 7) und 8) nicht wie bei einem Messer 13) mit gleichem Abstand zum Tambour über die Arbeitsbreite ausgeführt ist, sondern eine Kante aufweist, deren Abstand zur faserweiterführenden Walze über die Arbeitsbreite variiert. Dies kann auch durch eine Unterteilung des Messers erfolgen und der Abstand der einzelnen Messersegmente manuell oder durch ein Betätigungselement eingestellt werden.A similar effect can be achieved by the hold-down element according to claim 7) and 8) is not carried out as with a knife 13) equidistant to the drum over the working width, but has an edge whose distance to the fiber-advancing roller varies over the working width. This can also be done by a subdivision of the knife and the distance of the individual knife segments can be set manually or by an actuator.

Die Erfindung wird anhand der Fig. 1 und 2 erläutert.The invention is based on the Fig. 1 and 2 explained.

Fig. 1 zeigt beispielhaft eine Vliesbildemaschine. Eine Fasermatte 1) wird über ein sogenanntes Einzugswalzenpaar 2) einem Vorreißer 3) zugeführt. Mit einer Übertragungswalze 4) werden die Fasern auf eine Haupttrommel 7) übertragen. Um die Haupttrommel 7) sind Arbeitswalzen 5) und Wendewalzen 6) angeordnet. Ein Doffer 8) übernimmt die Fasern und bildet ein Vlies. Das Vlies wird von der Abzugseinrichtung 9) vom Doffer abgenommen. Fig. 1 shows an example of a nonwoven imaging machine. A fiber mat 1) is fed via a so-called feed roller pair 2) to a licker-in 3). With a transfer roller 4) the fibers are transferred to a main drum 7). To the main drum 7) work rolls 5) and turning rolls 6) are arranged. A doffer 8) takes over the fibers and forms a fleece. The fleece is removed from the trigger 9) from the doffer.

In der Skizze ist mit a) eine Dickstelle am Einzug der Fasermatte dargestellt und mit b) die langgezogene Dickstelle im Abzug aus der Vliesbildemaschine. Die Arbeiter 5) und Wender 6) haben die Dickstelle in die Länge gezogen und verflacht.In the sketch, with a) a thick spot on the feeder of the fiber mat is shown and with b) the elongated thick spot in the trigger from the web forming machine. Workers 5) and turner 6) have lengthened and flattened the thick patch.

Fig. 2 zeigt dieselbe Maschine mit einer zusätzlich angebrachten Abförderwalze 10), die überflüssige Fasern erfasst und in eine Sammelstelle wie einen Trichter 11) übergibt. Die Fasern werden durch eine Öffnung 12) abgesaugt und direkt automatisch durch die Abfördereinrichtung dem Faserstrom, der die Fasermatte bildet, wieder zugeführt. Diese Abförderwalze mit Absaugung kann auch an anderen Walzen oder Trommeln der Maschine angebracht werden, z. B. an der Haupttrommel oder an einer Arbeit- oder Wenderwalze. Es kann auch z. B. die Wenderwalze als Abförderwalze ausgebildet sein, indem sie die Fasern nicht der ihr zugeordneten Trommel 7,3 übergibt, sondern die Fasern an einen Luftstrom oder ein Transportband übergibt. Wichtig ist die Abförderung des die Ungleichmäßigkeiten bildenden Vliesmaterials, die automatische Zurückführung dieser überschüssigen Fasern über die Arbeitsbreite und die ggf. wiederholte Zuspeisung der zurückgeführten Fasern. Entsprechend ist die Abförderwalze dem Vorreißer 3), oder Übertragungswalzen 4) vom Vorreißer zur Haupttrommel bzw. -walze, oder der Haupttrommel bzw. -walze 7), oder einer Arbeiterwalze 5) oder Wenderwalze 6) benachbart angeordnet und nimmt so die Fasern von dieser Walze ab, bevor der Hauptteil der Fasern von der der Abförderwalze zugeordneten Trommel bzw. Walze weitergegeben wird. Die Skizzen a) und b) zeigen die Fasermatte vor und das Vlies nach der Maschine. Fig. 2 Figure 3 shows the same machine with an additional discharge roll 10), which collects excess fibers and transfers them to a collection point such as a funnel 11). The fibers are sucked through an opening 12) and fed back automatically by the discharge device to the fiber stream which forms the fiber mat. This removal roller with suction can also be attached to other rollers or drums of the machine, for. B. on the main drum or on a working or turning roller. It can also be z. B. the turning roller be designed as a discharge roller by not the fibers of the associated drum 7.3 passes, but the fibers passes to an air stream or a conveyor belt. Important is the discharge of the non-uniformity forming nonwoven material, the automatic return of these excess fibers over the working width and the possibly repeated feeding of the recycled fibers. Accordingly, the discharge roller is the lickerin 3), or Transfer rollers 4) from the licker to the main drum, or the main drum 7), or a work roll 5) or turning roll 6) adjacent and thus removes the fibers from this roll before the main part of the fibers of the the discharge roller associated drum or roller is passed. The sketches a) and b) show the fiber mat and the fleece after the machine.

Vorteilhaft wird ein zur Walze 4) einstellbares Niederhaltelement 13) angebracht an einer Stelle, bevor die Fasern die Abförderwalze erreichen.Advantageously, a hold-down element 13) adjustable to the roll 4) is attached at one point before the fibers reach the discharge roll.

Die Abförderwalze hat vorteilhaft eine Garnitur mit einem neutralen Winkel oder einem negativen Brustwinkel, damit die abgenommenen Fasern sich gut von der Abförderwalze lösen und nicht umlaufen. Ihr Drehsinn ist gleich dem der ihr zugeordneten Walze bzw. Trommel, von der die Fasern abgenommen werden. Ihre Umfangsgeschwindigkeit beträgt das 0,6 bis 2,0-fache der Umfangsgeschwindigkeit von der ihr zugeordneten Walze bzw. Trommel, ist aber bevorzugt höher als die Umfangsgeschwindigkeit der ihr zugeordneten Walze bzw. Trommel.The removal roller advantageously has a clothing with a neutral angle or a negative breast angle, so that the removed fibers come off well from the discharge roller and do not rotate. Its direction of rotation is equal to that of its associated roller or drum, from which the fibers are removed. Its peripheral speed is 0.6 to 2.0 times the peripheral speed of its associated roller or drum, but is preferably higher than the peripheral speed of its associated roller or drum.

Claims (14)

Vorrichtung für eine vliesbildende und mindestens drei bevorzugt mit Sägezahn oder Stiften garnierte Walzen aufweisende Maschine; die Vorrichtung umfasst mindestens eine Abförderwalze (10; 6) und eine Rückführvorrichtung (11, 12); die Abförderwalze (10; 6) kann einer Walze (3; 4; 5; 6; 7) der vliesbildenden Maschine benachbart angeordnet werden und nimmt über die ganze oder über Teile der Arbeitsbreite einer der Walzen Fasern des die Ungleichmäßigkeiten bildenden Materials von der Walze ab, führt die abgenommenen Fasern aus der vliesbildenden Maschine und der Rückführvorrichtung (11) zu; die Rückführvorrichtung (11, 12) ist derart mit der vliesbildenden Maschine verbindbar, dass die abgenommenen Fasern den zu verarbeitenden Fasern vor Bildung der der Maschine zugeführten Fasermatte ohne weitere Verarbeitung wieder zugeführt werden können.Device for a web-forming and at least three, preferably with sawtooth or pins garnished rollers having machine; the device comprises at least one discharge roller (10, 6) and a return device (11, 12); the discharge roller (10; 6) may be disposed adjacent a roller (3; 4; 5; 6; 7) of the web forming machine and removes fibers of the nonuniformity forming material from the roller over all or part of the working width of one of the rollers , supplies the removed fibers from the web-forming machine and the return device (11); the return device (11, 12) can be connected to the web-forming machine in such a way that the removed fibers can be fed back to the fibers to be processed without forming any further processing prior to formation of the fiber mat fed to the machine. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Abförderwalze (10) einer Hauptwalze (7), einer Arbeiter- oder Wenderwalze (5; 6) oder einem Vorreißer (3) oder Übertragungswalzen (4) benachbart angeordnet ist und so die Fasern von dieser Walze abnimmt, bevor der Hauptteil der Fasern von der der Abförderwalze zugeordneten Trommel bzw. Walze weitergegeben wird.Apparatus according to claim 1, characterized in that the discharge roller (10) of a main roll (7), a worker or turning roll (5; 6) or a licker-in (3) or transfer rolls (4) is arranged adjacent and so the fibers of this Roller decreases before the main part of the fibers is passed from the Abförderwalze associated drum or roller. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass eine Luftführung (12) vorgesehen ist, so dass die Fasern, die von der Abförderwalze (10) abgenommen werden, pneumatisch abgefördert werden und dem Faserstrom an irgendeiner Stelle vor dem Chute Feed wieder zugeführt werden.Apparatus according to claim 1 or 2, characterized in that an air guide (12) is provided, so that the fibers which are removed from the discharge roller (10) are pneumatically conveyed away and fed back to the fiber stream at any point before the chute feed , Vorrichtung nach einem der Ansprüche 1-3, dadurch gekennzeichnet, dass die Abförderwalze (10) mit einer Garnitur oder Stiften versehen ist. Die Garnitur kann einen neutralen Winkel oder einen negativen Brustwinkel aufweisen.Device according to one of claims 1-3, characterized in that the discharge roller (10) is provided with a clothing or pins. The The set may have a neutral angle or a negative chest angle. Vorrichtung nach einem der Ansprüche 1 - 4, dadurch gekennzeichnet, dass die Abförderwalze in ihrem Abstand zu der ihr benachbarten Walze einstellbar ist.Device according to one of claims 1 - 4, characterized in that the discharge roller is adjustable in its distance from the adjacent roll. Vorrichtung nach einem der Ansprüche 1 - 5, dadurch gekennzeichnet, dass die Umfangsgeschwindigkeit der Abförderwalze das 0,6 bis 2,0-fache der Umfangsgeschwindigkeit der ihr benachbarten Walze beträgt und bevorzugt höher ist als die Umfangsgeschwindigkeit der ihr benachbarten Walze.Device according to one of claims 1-5, characterized in that the peripheral speed of the discharge roller is 0.6 to 2.0 times the peripheral speed of the adjacent roller and is preferably higher than the peripheral speed of its adjacent roller. Vorrichtung nach einem der Ansprüche 1 - 6, dadurch gekennzeichnet, dass in Hauptfaserstromrichtung vor der Abförderwalze (10) ein Niederhaltelement (13) vorgesehen ist.Device according to one of claims 1 - 6, characterized in that in the main fiber flow direction in front of the discharge roller (10) a hold-down element (13) is provided. Vorrichtung nach Anspruch 7 dadurch gekennzeichnet, dass das Niederhaltelement (13) im Abstand zur benachbarten Walze einstellbar ist, um den Anteil der abzufordernden Fasern zu beeinflussen.Apparatus according to claim 7, characterized in that the hold-down element (13) is adjustable at a distance from the adjacent roller in order to influence the proportion of fibers to be picked. Verfahren zur Verarbeitung von Stapelfasern in einer vliesbildenden Maschine, dadurch gekennzeichnet, dass mittels mindestens einer Walze (10) ein Teil der Fasern von mit Fasern beaufschlagten Walzen der vliesbildenden Maschine abgenommen und diese abgenommenen Fasern abgefördert und dem der vliesbildenden Maschine zugeführten Hauptfaserstrom vor Bildung der dem Einzug zugeführten Fasermatte wieder zugeführt werden, ohne dass aus den Fasern Teile ausgeschieden werden.A process for processing staple fibers in a nonwoven forming machine, characterized in that by means of at least one roller (10) a part of the fibers removed from fibers loaded rolls of the web forming machine and removed these removed fibers and supplied to the web forming machine main fiber stream prior to formation of the Feeding fed fiber mat can be fed back without leaving the fibers parts are eliminated. Vorrichtung nach einem der Ansprüche 1 - 8, dadurch gekennzeichnet, dass der Durchmesser der Abförderwalze (10) über die Arbeitsbreite unterschiedlich ist.Device according to one of claims 1-8, characterized in that the diameter of the discharge roller (10) over the working width is different. Vorrichtung nach einem der Ansprüche 7 und 8, dadurch gekennzeichnet, dass der Abstand des Niederhalters (13) zur faserfördernden Walze, von der die Fasern abgefördert werden, über die Arbeitsbreite variiert.Device according to one of claims 7 and 8, characterized in that the distance of the blank holder (13) to the fiber-conveying roller, from which the fibers are conveyed off, varies over the working width. Vorrichtung nach einem der Ansprüche 7 und 8, dadurch gekennzeichnet, dass der Abstand über die Arbeitsbreite mindestens einmal zu- und mindestens einmal abnimmt.Device according to one of claims 7 and 8, characterized in that the distance over the working width at least once increases and decreases at least once. Vorrichtung nach einem der Ansprüche 7 und 8, dadurch gekennzeichnet, dass das Niederhaltelement aus mehreren Segmenten gebildet wird, die manuell oder durch Verstellelemente automatisch im Abstand zur fasertransportierenden Walze verstellt werden können.Device according to one of claims 7 and 8, characterized in that the hold-down element is formed of a plurality of segments which can be adjusted manually or by adjusting automatically at a distance from the fiber-transporting roller. Verfahren nach Anspruch 9, dadurch gekennzeichnet, dass die Menge der abgenommenen Fasem über die Arbeitsbreite in Sektionen beeinflussbar ist und die Beeinflussung durch unterschiedliche Durchmesser der Abförderwalze oder durch unterschiedliche Abstände des Niederhalters vor der Abförderwalze über die Arbeitsbreite erfolgt.A method according to claim 9, characterized in that the amount of removed fibers over the working width in sections can be influenced and the influence of different diameters of the discharge roller or by different distances of the blank holder in front of the discharge roller over the working width.
EP11177969.0A 2010-08-18 2011-08-18 Fibre catching device Active EP2420602B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201010034775 DE102010034775A1 (en) 2010-08-18 2010-08-18 Fiber safety gear

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EP2420602A2 true EP2420602A2 (en) 2012-02-22
EP2420602A3 EP2420602A3 (en) 2015-01-21
EP2420602B1 EP2420602B1 (en) 2017-05-03

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ES (1) ES2633693T3 (en)

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DE102011120715A1 (en) * 2011-12-12 2013-06-13 Hubert Hergeth Profiling or leveling a non-woven fiber fleece using a fleece forming system, comprises transporting the non-woven fiber fleece to a milling device and detaching the fiber fleece from the milling device

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DE98805C (en) * 1900-01-01
DE1202192B (en) * 1960-03-16 1965-09-30 Daiwa Spinning Co Ltd Machine for opening and cleaning cotton
CN2177023Y (en) * 1993-11-22 1994-09-14 萧进兴 Improved structure roller carding machine
DE10118067A1 (en) * 2001-04-11 2002-10-17 Truetzschler Gmbh & Co Kg Carding assembly has the leading opening cylinders which can be rotated around the center points of the feed roller or adjacent cylinders, to set the gap between the clamping and combing points
CN2554193Y (en) * 2002-04-17 2003-06-04 青岛胶南东佳纺机集团有限公司 Carding machine
DE10252203A1 (en) * 2002-11-09 2004-05-27 Hergeth, Hubert A., Dipl.-Ing. Dipl.-Wirtsch.-Ing. Width distribution method
CN100439586C (en) * 2004-02-03 2008-12-03 吴冬仙 Processing method and equipment for heat preservation shrink-proof cotton slice
DE102005038419A1 (en) * 2005-08-12 2007-02-15 Maschinenfabrik Rieter Ag Cleaning device for a textile machine
CN200958134Y (en) * 2006-10-08 2007-10-10 湖南博云高科技有限公司 Carder of carding machine

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CN102517695B (en) 2016-08-31
ES2633693T3 (en) 2017-09-22
EP2420602A3 (en) 2015-01-21
CN102517695A (en) 2012-06-27
DE102010034775A1 (en) 2012-02-23
EP2420602B1 (en) 2017-05-03

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