EP0768400B1 - Device for drafting preferably laterally oriented fibre webs - Google Patents

Device for drafting preferably laterally oriented fibre webs Download PDF

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Publication number
EP0768400B1
EP0768400B1 EP96115624A EP96115624A EP0768400B1 EP 0768400 B1 EP0768400 B1 EP 0768400B1 EP 96115624 A EP96115624 A EP 96115624A EP 96115624 A EP96115624 A EP 96115624A EP 0768400 B1 EP0768400 B1 EP 0768400B1
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EP
European Patent Office
Prior art keywords
drafting
rollers
roller
drafting rollers
saw
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.)
Expired - Lifetime
Application number
EP96115624A
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German (de)
French (fr)
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EP0768400A1 (en
Inventor
Siegfried Bernhardt
Frank Kieras
Dietrich Menzel
Heinz-Werner Naumann-Burghardt
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Spinnbau GmbH
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Spinnbau GmbH
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Publication of EP0768400A1 publication Critical patent/EP0768400A1/en
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Publication of EP0768400B1 publication Critical patent/EP0768400B1/en
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    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01HSPINNING OR TWISTING
    • D01H5/00Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/22Drafting machines or arrangements without fallers or like pinned bars in which fibres are controlled by rollers only
    • D01H5/24Drafting machines or arrangements without fallers or like pinned bars in which fibres are controlled by rollers only with porcupines or like pinned rotary members

Definitions

  • the invention relates to a device for Warping of preferably cross-oriented incoming Non-woven fabrics.
  • Such a device is known from DE 32 45 517 C2.
  • a plurality of pairs or trios of drafting rollers with increasing peripheral speed in the direction of flow arranged, with at least two cooperating drafting rollers that are immediately before the last group interacting in the direction of flow Distortion rollers are located and on clothing-free Follow drafting rollers, covered with a saw tooth set are.
  • the inlet side and the outlet side Distortion rollers are free of clothing.
  • Due to the in Direction increasing peripheral speed of the Draft roller pairs or trios are partially Longitudinal orientation of the fibers, the sawtooth sets ensure that this is not only on the fleece surface, but also happens in the middle of the fleece.
  • the fleece has an optimal ratio the longitudinal strength to the transverse strength. Indeed it has been found that the nonwoven jumps in more at the edges, up to 15% of the original fleece width.
  • the invention is therefore based on the object Specify device of the generic type, the one Warp in the longitudinal direction without a significant reduction in width enables.
  • the fleece experiences at the end or shortly before, a treatment with a special set, the opposite in both halves acts on the fleece.
  • the reduction in width of the finished Fleece is less than 5%, for example 3%.
  • the special set also exercises Longitudinal forces on the fleece to a to cause partial longitudinal orientation of the fibers.
  • the fleece through the Saw tooth set is processed intensively therefore a route in which mainly the superficial Fibers are processed. This leads to Surface layers with a higher degree of longitudinal orientation, so that the width side for width correction applied transverse forces to be fully effective can.
  • At least one of the Drafting rollers is assigned a pressure roller whose Distance to the associated drafting roller and its position adjustable with respect to the nip of this warping roller is.
  • a draft roller 1 is illustrated, the carries a sawtooth set 2. It consists of one A large number of tips 3 projecting outwards narrow bands 4, along the helical lines 5 the surface 6 of the roller are arranged.
  • the peculiarity is that the screw lines 5 on half of the roller opposite the helical lines 5 'on the other half of the roller an opposite Have pitch angles. Surrender therefore separated by the level 7 roll halves are mirror images of each other.
  • the pitch angle is between 30 and 60 °, preferably 45 °.
  • the term "saw tooth set” does not only cover one Set with pronounced saw teeth, but also one those that have needle-like tips or the like. having.
  • the number of screw lines 5 and 5 ' is essential in practice larger than shown in the drawing is. In operation, the point at which the sawtooth trimmings point hit both halves, in the direction of rotation forward, as indicated by arrow 8.
  • a nonwoven fabric is used, that is oriented across a treadmill 10 fed.
  • the peripheral speed the drafting rollers of these trios take from the infeed side towards the outlet side.
  • Trios 11, 13 and 14 are formed by drafting rollers 17, which are not Wear clothing.
  • the one near the inlet side and only separated by the trio 11 trio 12 is composed of drafting rollers 18, one have normal sawtooth set 19 with tips that are arranged along helical lines, which have the same Pitch angle over the entire length of the roller extend.
  • the slope angle of the continuous Helical lines are between 10 and 30 °, preferably at 20 °.
  • the drafting rollers 1 of the trio 15 are with the special sawtooth set 2, as shown in Fig.
  • the fleece fed via infeed belt 10 experiences in the Trio 11 first partially on its surface Longitudinal orientation of the mainly transverse fibers.
  • Trio 12 located near the inlet side this treatment is carried out to the depth of the fleece inside.
  • Trios 13 and 14 in turn get one Longitudinal orientation of near-surface fibers.
  • the outlet side arranged trio 15 finally cares the longitudinal distortion for a width extension. This will supported by the fact that the surface of the fleece due to trios 13 and 14 a higher degree of longitudinally oriented Fibers and therefore from the tips 3 exerted lateral forces can be absorbed well.
  • Fig. 4 are for corresponding Parts used with reference numbers increased by 200.
  • trios 112 and 115 by pairs of rollers 212 and 215 have been replaced.
  • the pair of rollers 114 come to an end and on the outlet side another pair of rollers 221 without saw tooth set were added, but with the special sawtooth set provided drafting rollers 1 of the pair of rollers 215 are still close to the spout.

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

Description

Die Erfindung bezieht sich auf eine Vorrichtung zum Verziehen von vorzugsweise querorientiert einlaufenden Faservliesen.The invention relates to a device for Warping of preferably cross-oriented incoming Non-woven fabrics.

Eine solche Vorrichtung ist aus DE 32 45 517 C2 bekannt. Bei ihr ist zwischen einem Einlauf und einem Auslauf eine Mehrzahl von Paaren oder Trios von Verzugswalzen mit in Durchlaufrichtung zunehmender Umfangsgeschwindigkeit angeordnet, wobei wenigstens zwei zusammenwirkende Verzugswalzen, die sich unmittelbar vor der in Durchlaufrichtung letzten Gruppe zusammenwirkender Verzugswalzen befinden und auf garniturfreie Verzugswalzen folgen, mit einer Sägezahn-Garnitur ummantelt sind. Die einlaufseitigen und die auslaufseitigen Verzugswalzen sind garniturfrei. Aufgrund der in Laufrichtung zunehmenden Umfangsgeschwindigkeit der Verzugswalzenpaare oder -trios erfolgt eine teilweise Längsorientierung der Fasern, wobei die Sägezahn-Garnituren dafür sorgen, daß dies nicht nur an der Vliesoberfläche, sondern auch inmitten des Vlieses geschieht. Im Ergebnis hat das Vlies ein optimales Verhältnis der Längsfestigkeit zur Querfestigkeit. Allerdings hat es sich herausgestellt, daß das Faservlies bei der Bearbeitung an den Rändern stärker einspringt, und zwar bis zu 15 % der ursprünglichen Vliesbreite.Such a device is known from DE 32 45 517 C2. With her is between an enema and one Spout a plurality of pairs or trios of drafting rollers with increasing peripheral speed in the direction of flow arranged, with at least two cooperating drafting rollers that are immediately before the last group interacting in the direction of flow Distortion rollers are located and on clothing-free Follow drafting rollers, covered with a saw tooth set are. The inlet side and the outlet side Distortion rollers are free of clothing. Due to the in Direction increasing peripheral speed of the Draft roller pairs or trios are partially Longitudinal orientation of the fibers, the sawtooth sets ensure that this is not only on the fleece surface, but also happens in the middle of the fleece. As a result, the fleece has an optimal ratio the longitudinal strength to the transverse strength. Indeed it has been found that the nonwoven jumps in more at the edges, up to 15% of the original fleece width.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Vorrichtung der gattungsgemäßen Art anzugeben, die ein Verziehen in Längsrichtung ohne wesentliche Breitenverminderung ermöglicht.The invention is therefore based on the object Specify device of the generic type, the one Warp in the longitudinal direction without a significant reduction in width enables.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruchs 1 gelöst.This object is achieved by the features of claim 1 solved.

Bei dieser Konstruktion erfährt das Vlies zum Abschluß oder kurz davor eine Behandlung mittels einer Spezial-Garnitur, die in beiden Bahnhälften einander entgegengesetzt wirkende Kräfte auf das Vlies ausübt. Hierdurch läßt sich die ursprüngliche Breite des Vlieses nahezu aufrechterhalten. Die Breitenreduktion des fertigen Vlieses liegt bei weniger als 5 %, beispielsweise bei 3 %. Gleichzeitig übt die Spezial-Garnitur aber auch Kräfte in Längsrichtung auf das Vlies aus, um eine teilweise Längsorientierung der Fasern zu bewirken. Vor dem Auslaufabschnitt, in dem das Vlies durch die Sägezahn-Garnitur intensiv bearbeitet wird, befindet sich daher eine Strecke, in der hauptsächlich die oberflächlichen Fasern bearbeitet werden. Dies führt zu Oberflächenschichten mit einem höheren Grad an Längsorientierung, so daß die zur Breitenkorrektur auslaufseitig aufzubringenden Querkräfte voll wirksam sein können.With this construction, the fleece experiences at the end or shortly before, a treatment with a special set, the opposite in both halves acts on the fleece. Hereby the original width of the fleece can be almost maintain. The reduction in width of the finished Fleece is less than 5%, for example 3%. At the same time, the special set also exercises Longitudinal forces on the fleece to a to cause partial longitudinal orientation of the fibers. Before the outlet section, in which the fleece through the Saw tooth set is processed intensively therefore a route in which mainly the superficial Fibers are processed. this leads to Surface layers with a higher degree of longitudinal orientation, so that the width side for width correction applied transverse forces to be fully effective can.

In manchen Fällen kann es zweckmäßig sein, daß der Wechsel des Steigungswinkels etwas außerhalb der Walzenmitte erfolgt. Dies kann beispielsweise der Fall sein, wenn die Zugkräfte auf der Antriebsseite der Verzugswalze größer sind als auf der gegenüberliegenden Seite oder wenn das Vlies durch die Behandlung in den vorangehenden Verzugswalzen seitlich verschoben sein sollte.In some cases it may be appropriate for the Change of the pitch angle slightly outside the middle of the roller he follows. This can be the case, for example be when the tensile forces on the drive side of the drafting roller are larger than on the opposite Side or when the fleece is treated in the preceding drafting rollers to be moved laterally should.

Günstig ist es, daß weitere Sägezahn-Garnituren an Verzugswalzen, die sich unmittelbar am Einlauf oder unmittelbar nach der in Durchlaufrichtung ersten Gruppe zusammenwirkender Verzugswalzen befinden, angeordnet sind und schraubenlinienförmig mit gleichem Steigungswinkel über die gesamte Walzenlänge verlaufen. Es wird daher schon beim Einlauf oder kurz danach dafür gesorgt, daß die Fasern des Vlieses über dessen gesamte Dicke eine teilweise Längsorientierung erfahren.It is favorable that further sawtooth sets on drafting rollers, which is directly at the inlet or immediately after the first group interacting in the direction of flow Warping rollers are arranged and helical with the same pitch angle run over the entire length of the roller. It will therefore already at the inlet or shortly afterwards ensure that the fibers of the fleece over its entire thickness partially experienced longitudinal orientation.

Empfehlenswert ist es auch, daß wenigstens einer der Verzugswalzen eine Druckwalze zugeordnet ist, deren Abstand zur zugehörigen Verzugswalze und deren Position in Bezug auf den Klemmpunkt dieser Verzugswalze einstellbar ist. Durch entsprechende Einstellung der Druckwalze läßt sich auf einfache Weise eine Anpassung an unterschiedliches Fasermaterial und unterschiedlichen Vliesaufbau vornehmen.It is also recommended that at least one of the Drafting rollers is assigned a pressure roller whose Distance to the associated drafting roller and its position adjustable with respect to the nip of this warping roller is. By setting the Print roller can be easily adjusted of different fiber material and different Make the fleece.

Die Erfindung wird nachstehend anhand in der Zeichnung dargestellter, bevorzugter Ausführungsbeispiele näher erläutert. Es zeigen:

Fig. 1
eine Verzugswalze für den Auslaufteil der Vorrichtung,
Fig. 2
schematisch ein Ausführungsbeispiel einer erfindungsgemäßen Vorrichtung,
Fig. 3
eine abgewandelte Vorrichtung,
Fig. 4
eine dritte Ausführungsform und
Fig. 5
eine vierte Ausführungsform.
The invention is explained in more detail below with reference to preferred exemplary embodiments illustrated in the drawing. Show it:
Fig. 1
a drafting roller for the outlet part of the device,
Fig. 2
schematically an embodiment of a device according to the invention,
Fig. 3
a modified device,
Fig. 4
a third embodiment and
Fig. 5
a fourth embodiment.

In Fig. 1 ist eine Verzugswalze 1 veranschaulicht, die eine Sägezahngarnitur 2 trägt. Sie besteht aus einer Vielzahl von mit nach außen ragenden Spitzen 3 versehenen schmalen Bändern 4, die längs Schraubenlinien 5 auf der Oberfläche 6 der Walze angeordnet sind. Die Besonderheit besteht darin, daß die Schraubenlinien 5 auf der einen Hälfte der Walze gegenüber den Schraubenlinien 5' auf der anderen Hälfte der Walze einen entgegengesetzten Steigungswinkel aufweisen. Es ergeben sich daher durch die Ebene 7 getrennte Walzenhälften, die spiegelbildlich zueinander gleich sind. Der Steigungswinkel liegt zwischen 30 und 60°, vorzugsweise bei 45°. Der Begriff "Sägezahn-Garnitur" deckt nicht nur eine Garnitur mit ausgeprägten Sägezähnen, sondern auch eine solche, die nadelförmige Spitzen o.dgl. aufweist. Die Zahl der Schraubenlinien 5 und 5' ist in der Praxis wesentlich größer als sie in der Zeichnung dargestellt ist. Im Betrieb weist der Punkt, an dem sich die Sägezahn-Garnituren beider Hälften treffen, in Drehrichtung nach vorn, wie dies durch den Pfeil 8 angedeutet ist.In Fig. 1, a draft roller 1 is illustrated, the carries a sawtooth set 2. It consists of one A large number of tips 3 projecting outwards narrow bands 4, along the helical lines 5 the surface 6 of the roller are arranged. The peculiarity is that the screw lines 5 on half of the roller opposite the helical lines 5 'on the other half of the roller an opposite Have pitch angles. Surrender therefore separated by the level 7 roll halves are mirror images of each other. The pitch angle is between 30 and 60 °, preferably 45 °. The term "saw tooth set" does not only cover one Set with pronounced saw teeth, but also one those that have needle-like tips or the like. having. The The number of screw lines 5 and 5 'is essential in practice larger than shown in the drawing is. In operation, the point at which the sawtooth trimmings point hit both halves, in the direction of rotation forward, as indicated by arrow 8.

Bei der Verziehvorrichtung nach Fig. 2 wird ein Faservlies, das querorientiert ist, über ein Laufband 10 zugeführt. Es folgen fünf Verzugswalzentrios 11 bis 15, gefolgt von einem Laufband 16. Die Umfangsgeschwindigkeit der Verzugswalzen dieser Trios nimmt von der Einlaufseite zur Auslaufseite hin zu. Die Trios 11, 13 und 14 werden durch Verzugswalzen 17 gebildet, die keine Garnitur tragen. Das nahe der Einlaufseite befindliche und von ihr lediglich durch das Trio 11 getrennte Trio 12 ist aus Verzugswalzen 18 zusammengesetzt, die eine normale Sägezahngarnitur 19 mit Spitzen aufweisen, die längs Schraubenlinien angeordnet sind, welche mit gleichem Steigungswinkel sich über die gesamte Walzenlänge erstrecken. Der Steigungswinkel der durchgehenden Schraubenlinien liegt zwischen 10 und 30°, vorzugsweise bei 20°. Die Verzugswalzen 1 des Trios 15 sind mit der speziellen Sägezahngarnitur 2 versehen, wie sie in Fig. 1 dargestellt ist. Der Abstand benachbarter Garnituren wird mittels einer Fühlerlehre auf wenige Millimeter, insbesondere 1,5 mm, eingestellt. In allen Trios sind ferner Druckwalzen 20 vorgesehen, deren radialer Abstand zu den zugehörigen Verzugswalzen und deren Position mit Bezug auf die zugehörige Klemmstelle eingestellt werden kann.2, a nonwoven fabric is used, that is oriented across a treadmill 10 fed. There follow five warping roller trios 11 to 15, followed by a treadmill 16. The peripheral speed the drafting rollers of these trios take from the infeed side towards the outlet side. Trios 11, 13 and 14 are formed by drafting rollers 17, which are not Wear clothing. The one near the inlet side and only separated by the trio 11 trio 12 is composed of drafting rollers 18, one have normal sawtooth set 19 with tips that are arranged along helical lines, which have the same Pitch angle over the entire length of the roller extend. The slope angle of the continuous Helical lines are between 10 and 30 °, preferably at 20 °. The drafting rollers 1 of the trio 15 are with the special sawtooth set 2, as shown in Fig. 1 is shown. The distance between adjacent sets using a feeler gauge to a few millimeters, in particular 1.5 mm. In all trios are further provided pressure rollers 20, the radial distance to the associated drafting rollers and their position with reference to the associated terminal point can be.

Das über Einlaufband 10 zugeführte Vlies erfährt im Trio 11 zunächst an seiner Oberfläche eine teilweise Längsorientierung der hauptsächlich querliegenden Fasern. Im nahe der Einlaufseite angeordneten Trio 12 erfolgt diese Behandlung bis in die Tiefe des Vlieses hinein. Die Trios 13 und 14 besorgen wiederum eine Längsorientierung von oberflächennahen Fasern. Das auslaufseitig angeordnete Trio 15 schließlich sorgt außer dem Längsverzug für eine Breitenstreckung. Dies wird dadurch unterstützt, daß die Oberfläche des Vlieses aufgrund der Trios 13 und 14 ein höheres Maß an längsorientierten Fasern besitzt und daher die von den Spitzen 3 ausgeübten Querkräfte gut aufgenommen werden können.The fleece fed via infeed belt 10 experiences in the Trio 11 first partially on its surface Longitudinal orientation of the mainly transverse fibers. Trio 12 located near the inlet side this treatment is carried out to the depth of the fleece inside. Trios 13 and 14 in turn get one Longitudinal orientation of near-surface fibers. The outlet side arranged trio 15 finally cares the longitudinal distortion for a width extension. this will supported by the fact that the surface of the fleece due to trios 13 and 14 a higher degree of longitudinally oriented Fibers and therefore from the tips 3 exerted lateral forces can be absorbed well.

Bei der Ausführungsform nach Fig. 3 werden für entsprechende Teile um 100 erhöhte Bezugszeichen verwendet. Der wesentliche Unterschied besteht darin, daß die drei Trios 11, 13 und 14 durch Verzugswalzenpaare 111, 113 und 114 ersetzt sind.3 are for corresponding Parts used by 100 increased reference numerals. The main difference is that the three Trios 11, 13 and 14 by pairs of drafting rollers 111, 113 and 114 are replaced.

Bei der Ausführungsform nach Fig. 4 werden für entsprechende Teile um 200 erhöhte Bezugszeichen verwendet. Hier sind auch noch die Trios 112 und 115 durch Walzenpaare 212 und 215 ersetzt worden. Außerdem ist das Walzenpaar 114 in Fortfall gekommen und auslaufseitig ein weiteres Walzenpaar 221 ohne Sägezahn-Garnitur hinzugekommen, wobei sich aber die mit der Spezial-Sägezahn-Garnitur versehenen Verzugswalzen 1 des Walzenpaares 215 immer noch nahe am Auslauf befinden.In the embodiment of Fig. 4 are for corresponding Parts used with reference numbers increased by 200. Here are also the trios 112 and 115 by pairs of rollers 212 and 215 have been replaced. In addition, the pair of rollers 114 come to an end and on the outlet side another pair of rollers 221 without saw tooth set were added, but with the special sawtooth set provided drafting rollers 1 of the pair of rollers 215 are still close to the spout.

Bei der Ausführungsform nach Fig. 5 werden für entsprechende Teile um 300 erhöhte Bezugszeichen verwendet. Hier sind alle aufeinanderfolgenden Verzugswalzen miteinander in Eingriff. Es gibt ein einlaufseitiges Trio 311 ohne Sägezahn-Garnitur. Es folgt ein nahe des Einlaufs befindliches Trio 312 mit normaler Sägezahn-Garnitur. Darauf folgt ein Trio 313 aus Verzugswalzen ohne Garnitur. Danach gibt es ein Trio 322 mit normaler Sägezahn-Garnitur. Auf vier Verzugswalzen 314 folgen ein Trio 315 mit Verzugswalzen 1 gemäß Fig. 1. Dies führt zu einer sehr gleichmäßigen Durcharbeitung der Fasern im Vlies.5 are for corresponding Parts used by 300 increased reference numerals. Here are all successive drafting rollers with each other engaged. There is a trio on the entry side 311 without saw tooth set. It follows a near the enema Trio 312 with normal saw tooth set. This is followed by a trio 313 of drafting rollers without Set. Then there is a Trio 322 with a normal saw tooth set. On four drafting rollers 314 follow Trio 315 with drafting rollers 1 according to FIG. 1. This leads for a very even working through of the fibers in the fleece.

Claims (4)

  1. Device for drafting preferably transversely oriented fibrous webs, in which a plurality of pairs (111, 113, 114; 211, 212, 213, 215, 221) or trios (11 to 15; 112, 115; 311 to 315, 322) of drafting rollers with a circumferential speed increasing in the direction of feed are arranged between an inlet and an outlet, at least two cooperating drafting rollers (1) situated immediately at the outlet or immediately upstream of the last group of cooperating drafting rollers in the direction of feed and following clothing-free drafting rollers being covered in a saw-tooth clothing (2) and the saw-tooth clothings (2) each extending in a helical manner, but with an opposing helix angle on each roll half.
  2. Device according to claim 1, characterised in that the helix angle changes slightly outside the centre of the roller.
  3. Device according to claim 1 or claim 2, characterised in that further saw-tooth clothings (19) are arranged on drafting rollers (18) situated immediately at the inlet or immediately downstream of the first group of cooperating drafting rollers in the direction of feed and extend in a helical manner with the same helix angle over the entire length of the rollers.
  4. Device according to one of claims 1 to 3, characterised in that a pressure roller (20) is associated with at least one of the drafting rollers (1, 17, 18), its distance from the associated drafting roller and its position relative to the clamping point of this drafting roller being adjustable.
EP96115624A 1995-10-09 1996-09-28 Device for drafting preferably laterally oriented fibre webs Expired - Lifetime EP0768400B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19537580 1995-10-09
DE19537580A DE19537580C2 (en) 1995-10-09 1995-10-09 Device for warping predominantly cross-oriented incoming nonwovens

Publications (2)

Publication Number Publication Date
EP0768400A1 EP0768400A1 (en) 1997-04-16
EP0768400B1 true EP0768400B1 (en) 1999-04-07

Family

ID=7774399

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96115624A Expired - Lifetime EP0768400B1 (en) 1995-10-09 1996-09-28 Device for drafting preferably laterally oriented fibre webs

Country Status (3)

Country Link
EP (1) EP0768400B1 (en)
DE (2) DE19537580C2 (en)
ES (1) ES2130730T3 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3611507A (en) * 1968-08-22 1971-10-12 Kanegafuchi Spinning Co Ltd Production of worsted tops
ES385298A1 (en) * 1970-11-06 1973-08-16 Lorenzo Garcia Drawing of synthetic textile fibres
JPS57154421A (en) * 1981-03-12 1982-09-24 Takehisa Kato Drafting apparatus in spinning frame
US4566162A (en) * 1982-10-26 1986-01-28 American Roller Company Stretcher/expander roller
DE3245517C2 (en) * 1982-12-09 1985-11-14 Spinnbau GmbH, 2820 Bremen Device for warping cross-oriented incoming fiber webs
DE3839473A1 (en) * 1988-11-23 1990-05-31 Krantz H Gmbh & Co ROLLER FOR CARRYING A RAILWAY

Also Published As

Publication number Publication date
EP0768400A1 (en) 1997-04-16
DE59601598D1 (en) 1999-05-12
ES2130730T3 (en) 1999-07-01
DE19537580A1 (en) 1997-04-10
DE19537580C2 (en) 1997-09-04

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