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WO1999000539A1 - Godet roll for winding and unwinding fibres or thread - Google Patents

Godet roll for winding and unwinding fibres or thread Download PDF

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Publication number
WO1999000539A1
WO1999000539A1 PCT/AT1998/000144 AT9800144W WO9900539A1 WO 1999000539 A1 WO1999000539 A1 WO 1999000539A1 AT 9800144 W AT9800144 W AT 9800144W WO 9900539 A1 WO9900539 A1 WO 9900539A1
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WO
WIPO (PCT)
Prior art keywords
godet
slot
threads
godet roll
fibers
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.)
Ceased
Application number
PCT/AT1998/000144
Other languages
German (de)
French (fr)
Inventor
Anton Schönberg
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.)
Lenzing AG
Original Assignee
Lenzing AG
Chemiefaser Lenzing AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Lenzing AG, Chemiefaser Lenzing AG filed Critical Lenzing AG
Priority to AU77501/98A priority Critical patent/AU7750198A/en
Publication of WO1999000539A1 publication Critical patent/WO1999000539A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D11/00—Other features of manufacture

Definitions

  • the present invention relates to a godet for winding and unwinding fibers or threads.
  • Such godets are known and are used in processes for the production of artificial fibers, e.g. the viscose fiber process used.
  • step godets increases step-wise in one direction from the drive side.
  • steps are thus formed, by means of which the fibers or threads are wound up or unwound.
  • step pallets due to the different diameters of the different steps, the fibers or threads are stretched from step to step.
  • the object of the present invention is therefore to provide a godet of the type described in the introduction, which in the event of the above-described malfunction allows the removal of torn threads or fibers which have been tied around the godet.
  • the godet according to the invention is also intended to make it possible to keep the period of time during which the spinning process has to be interrupted in order to remove the threads or fibers wound around the godet.
  • the object of the invention is achieved by a godet, the diameter of which increases step-wise in one direction and which is characterized in that each of the steps formed by the step-wise increase in diameter has a slot which extends in an essentially axial direction over the entire width of the Stage runs.
  • step-shaped increase in the diameter of the steps formed has a slot ⁇ which extends in an essentially axial direction over the entire width of the step.
  • the measure of providing a slot running over the entire width of the step means that the threads or fibers looped around the respective step can simply be severed with a cutting tool at the point at which the slot is located. The severed threads or fibers can then be removed from the godet by hand. This simple removal would not be possible without the presence of a slot through which the cutting tool * can be guided during or after the threads have been cut.
  • the slot should be formed so deep that the above-described easy cutting of the threads or fibers is made possible.
  • the depth of the slot is preferably at least the same size as the height of the step in question or, in the case of the first step with the smallest diameter, as the height of the adjacent step.
  • the slot does not have to run in the completely axial direction across the width of the step, but can also run slightly obliquely. It is essential that the selected slit arrangement enables the threads or fibers to be simply cut through.
  • a slot is provided that extends across the entire width of the godet.
  • This embodiment makes it possible to cut the threads or fibers looped over several stages over the entire width of the godet in the event of a malfunction with only one cut. These threads or fibers can thus be removed in the shortest possible time and, accordingly, the process interruption can be kept short.
  • This preferred embodiment is also easy to manufacture.
  • the lower boundary of the slot has a substantially equal distance from the center of the godet over the entire width of the godet.
  • the lower boundary of the slot can, however, also run in a step shape or obliquely with respect to the center of the godet. This may be necessary, for example, if the godet is partially hollow to save material.
  • the steps preferably each have a plurality of slots, preferably four slots each. In the event of a malfunction, this makes it possible to sever the threads or fibers looped around the steps at several points in order to be able to remove them even more easily from the godet.
  • FIG. 1 shows a cross section of a preferred embodiment of the invention and the right half of FIG. 1 shows a top view of the preferred embodiment.
  • Fig. 2 shows the front view of a preferred embodiment of the invention.
  • the basic structure of the stepped pallet 1 can be seen from FIGS. 1 and 2.
  • the godet has four stages 11, 12, 13 and 14, the diameter of which increases in the direction of stage 14.
  • slots 2, 3, 4 and 5 are provided at substantially the same intervals.
  • the slots 2, 3, 4, 5 extend continuously over the entire width of the godet 1, i.e. from level 11 to level 14.
  • the lower boundary of the slots (indicated here with reference number 21) has essentially the same distance from the center of the godet over the entire width of the godet 1.
  • the depth of the slots 2, 3, 4, 5 is dimensioned such that it is still large enough in the first step 11 with the smallest diameter in order to be able to simply cut through threads or fibers wound around the step.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Abstract

The invention relates to a godet roll (1) for winding and unwinding fibres or thread. The diameter of said godet roll increases in a step-like manner in one direction. The godet roll provided for by the invention is characterized in that each of the steps (11, 12, 13, 14) formed by the step-like increase in diameter presents a slot (7) extending in a substantially axial direction across the entire width of the step. In this way thread or fibres wound over the steps can easily be cut in case of an operating failure. The godet roll preferably comprises at least one slot which extends across its entire width.

Description

Galette zum Auf- und Abwickeln von Fasern oder FädenGalette for winding and unwinding fibers or threads

Die vorliegende Erfindung betrifft eine Galette zum Auf- und Abwickeln von Fasern oder Fäden. Solche Galetten sind bekannt und werden in Verfahren zur Herstellung von künstlichen Fasern, z.B. dem Viskosefaserverfahren eingesetzt.The present invention relates to a godet for winding and unwinding fibers or threads. Such godets are known and are used in processes for the production of artificial fibers, e.g. the viscose fiber process used.

Es ist z.B. aus Götze, „Chemiefasern nach dem Viskoseverfahren", 3. Auflage 1967, Springer- Verlag, S. 859 bekannt, solche Galetten stufenförmig auszubilden.It is e.g. from Götze, "Chemical fibers according to the viscose process", 3rd edition 1967, Springer-Verlag, p. 859 known to form such godets in steps.

Der Durchmesser solcher Galetten, die im folgenden als „Stufengaletten" bezeichnet werden, nimmt von der Antriebsseite her in eine Richtung stufenförmig zu. Es werden damit verschiedene Stufen ausgebildet, über welche die Fasern oder Fäden auf- bzw. abgewickelt werden.The diameter of such godets, which are referred to below as "step godets", increases step-wise in one direction from the drive side. Various steps are thus formed, by means of which the fibers or threads are wound up or unwound.

Der Vorteil solcher Stufengaletten ist, daß aufgrund des unterschiedlichen Durchmessers der verschiedenen Stufen von Stufe zu Stufe eine Verstreckung der Fasern oder Fäden erfolgt.The advantage of such step pallets is that due to the different diameters of the different steps, the fibers or threads are stretched from step to step.

Es ist weiters bekannt, daß es in Verfahren zur Herstellung von Fasern oder Fäden z.B aufgrund des Abreißens der auf- bzw. abzuwickelnden Fadenschar bei den Galetten zu Betriebsstörungen kommt, weil sich die abgerissenen Fäden um die Galette schlingen. In diesem Fall muß das Verfahren unterbrochen werden, und die abgerissenen, um die Galette geschlungenen Fäden müssen von der Galette entfernt werden.It is also known that in processes for the production of fibers or threads, for example due to the tearing of the thread sheet to be wound or unwound, the godets are subject to malfunctions because the torn threads are looped around the godet. In this case the procedure must be interrupted and the torn threads wound around the godet must be removed from the godet.

Dies ist jedoch insbesondere bei Stufengaletten problematisch, weil die Durchmesser der Stufen der Galette zur Antriebsseite hin abnehmen und daher ein einfaches Herunterziehen der Fäden nicht möglich ist.However, this is particularly problematic in the case of step godets, because the diameter of the steps of the godet decrease towards the drive side and therefore it is not possible to simply pull the threads down.

Die vorliegende Erfindung stellt sich somit die Aufgabe, eine Galette der eingangs beschriebenen Art zur Verfugung zu stellen, welche im Falle der oben beschriebenen Betriebsstörung in einfacher Weise das Entfernen von abgerissenen, um die Galette geschlungenen Fäden oder Fasern erlaubt. Mit der erfindungsgemäßen Galette soll weiters ermöglicht werden, die Zeitspanne, während derer das Spinnverfahren zur Entfernung der um die Galette geschlungenen Fäden oder Fasern unterbrochen werden muß, kurz zu halten.The object of the present invention is therefore to provide a godet of the type described in the introduction, which in the event of the above-described malfunction allows the removal of torn threads or fibers which have been tied around the godet. The godet according to the invention is also intended to make it possible to keep the period of time during which the spinning process has to be interrupted in order to remove the threads or fibers wound around the godet.

Die Aufgabe der Erfindung wird durch eine Galette gelöst, deren Durchmesser stufenförmig in eine Richtung hin zunimmt und welche dadurch gekennzeichnet ist, daß jede der durch die stufenförmige Zunahme des Durchmessers gebildeten Stufen einen Schlitz aufweist, welcher in im wesentlichen axialer Richtung über die gesamte Breite der Stufe verläuft. stufenförmige Zunahme des Durchmessers gebildeten Stufen einen Schlitz aufweist^ welcher in im wesentlichen axialer Richtung über die gesamte Breite der Stufe verläuft.The object of the invention is achieved by a godet, the diameter of which increases step-wise in one direction and which is characterized in that each of the steps formed by the step-wise increase in diameter has a slot which extends in an essentially axial direction over the entire width of the Stage runs. step-shaped increase in the diameter of the steps formed has a slot ^ which extends in an essentially axial direction over the entire width of the step.

Durch die Maßnahme, einen über die gesamte Breite der Stufe verlaufenden Schlitz vorzusehen, können nämlich die um die jeweilige Stufe geschlungenen Fäden oder Fasern einfach mit einem Schneidwerkzeug an der Stelle, an welcher sich der Schlitz befindet, durchtrennt werden. Die durchtrennten Fäden oder Fasern können dann händisch von der Galette entfernt werden. Diese einfache Entfernung wäre ohne das Vorhandensein eines Schlitzes, durch welchen das Schneidwerkzeug* beim bzw. nach dem Durchtrennen der Fäden geführt werden kann, nicht möglich.The measure of providing a slot running over the entire width of the step means that the threads or fibers looped around the respective step can simply be severed with a cutting tool at the point at which the slot is located. The severed threads or fibers can then be removed from the godet by hand. This simple removal would not be possible without the presence of a slot through which the cutting tool * can be guided during or after the threads have been cut.

Der Schlitz sollte so tief ausgebildet sein, daß das oben beschriebene leichte Durchtrennen der Fäden oder Fasern ermöglicht wird. Bevorzugt ist die Tiefe des Schlitzes zumindest gleich groß wie die Höhe der betreffenden Stufe bzw. im Falle der ersten Stufe mit dem kleinsten Durchmesser wie die Höhe der benachbarten Stufe.The slot should be formed so deep that the above-described easy cutting of the threads or fibers is made possible. The depth of the slot is preferably at least the same size as the height of the step in question or, in the case of the first step with the smallest diameter, as the height of the adjacent step.

Der Schlitz muß nicht in vollkommen axialer Richtung über die Breite der Stufe verlaufen, sondern kann auch leicht schräg verlaufen. Wesentlich ist, daß mit der gewählten Schlitzanordnung ein einfaches Durchtrennen der Fäden oder Fasern möglich ist.The slot does not have to run in the completely axial direction across the width of the step, but can also run slightly obliquely. It is essential that the selected slit arrangement enables the threads or fibers to be simply cut through.

In einer bevorzugten Ausfuhrungsform der Erfindung ist ein über die gesamte Breite der Galette verlaufender Schlitz vorgesehen.In a preferred embodiment of the invention, a slot is provided that extends across the entire width of the godet.

Mit dieser Ausfuhrungsform wird nämlich ermöglicht, im Falle einer Betriebsstörung mit nur einem Schnitt die über mehrere Stufen geschlungenen Fäden oder Fasern über die gesamte Breite der Galette durchzutrennen. Es können somit diese Fäden oder Fasern in kürzester Zeit entfernt werden und dementsprechend auch die Verfahrensunterbrechung kurz gehalten werden.This embodiment makes it possible to cut the threads or fibers looped over several stages over the entire width of the godet in the event of a malfunction with only one cut. These threads or fibers can thus be removed in the shortest possible time and, accordingly, the process interruption can be kept short.

Diese bevorzugte Ausführungsform ist auch in leichter Weise herzustellen.This preferred embodiment is also easy to manufacture.

In vorteilhafter Weise weist die untere Begrenzung des Schlitzes über die gesamte Breite der Galette einen im wesentlichen gleichen Abstand vom Zentrum der Galette auf. Die untere Begrenzung des Schlitzes kann jedoch auch stufenförmig oder bezogen auf das Zentrum der Galette schräg verlaufen. Dies kann z.B. notwendig sein, wenn zur Einsparung von Material die Galette teilweise hohl ausgebildet ist. Bevorzugt weisen die Stufen jeweils mehrere, vorzugsweise jeweils vier Schlitze auf. Damit wird ermöglicht, im Falle einer Betriebsstörung die um die Stufen geschlungenen Fädern oder Fasem an mehreren Stellen zu durchtrennen, um sie noch einfacher von der Galette entfernen zu können.Advantageously, the lower boundary of the slot has a substantially equal distance from the center of the godet over the entire width of the godet. The lower boundary of the slot can, however, also run in a step shape or obliquely with respect to the center of the godet. This may be necessary, for example, if the godet is partially hollow to save material. The steps preferably each have a plurality of slots, preferably four slots each. In the event of a malfunction, this makes it possible to sever the threads or fibers looped around the steps at several points in order to be able to remove them even more easily from the godet.

Besonders wirkungsvoll ist diese Maßnahme in Kombination mit der bevorzugten Ausfuhrungsform, daß die vorgesehenen Schlitze sich jeweils über die gesamte Breite der Galette erstrecken.This measure is particularly effective in combination with the preferred embodiment that the slots provided each extend over the entire width of the godet.

Im folgenden wird die Erfindung noch näher anhand der Zeichnungen erläutert:The invention is explained in more detail below with reference to the drawings:

Dabei zeigt die linke Hälfte von Fig. 1 einen Querschnitt einer bevorzugten Ausfuhrungsform der Erfindung und die rechte Hälfte der Fig. 1 eine Draufsicht auf die bevorzugte Ausführungsform.The left half of FIG. 1 shows a cross section of a preferred embodiment of the invention and the right half of FIG. 1 shows a top view of the preferred embodiment.

Fig. 2 zeigt die Vorderansicht einer bevorzugten Ausführungsform der Erfindung.Fig. 2 shows the front view of a preferred embodiment of the invention.

Aus Fig. 1 und Fig. 2 ist der Grundaufbau der Stufengalette 1 ersichtlich. Die Galette weist vier Stufen 11, 12, 13 und 14 auf, deren Durchmesser in Richtung der Stufe 14 jeweils größer wird.The basic structure of the stepped pallet 1 can be seen from FIGS. 1 and 2. The godet has four stages 11, 12, 13 and 14, the diameter of which increases in the direction of stage 14.

Weiters sind in im wesentlichen gleichen Abständen vier Schlitze 2,3,4 und 5 vorgesehen. In der gezeigten bevorzugten Ausführungsform erstrecken sich die Schlitze 2,3,4,5 durchgehend über die gesamte Breite der Galette 1, d.h. von Stufe 11 bis Stufe 14.Furthermore, four slots 2, 3, 4 and 5 are provided at substantially the same intervals. In the preferred embodiment shown, the slots 2, 3, 4, 5 extend continuously over the entire width of the godet 1, i.e. from level 11 to level 14.

In Fig. 1 ist eine Ausfuhrungsform dargestellt, bei der die untere Begrenzung der Schlitze (hier mit Bezugsziffer 21 angedeutet) über die gesamte Breite der Galette 1 im wesentlichen den gleichen Abstand vom Zentrum der Galette aufweist. Die Tiefe der Schlitze 2,3,4,5 ist dabei so bemessen, daß sie bei der ersten Stufe 11 mit dem kleinsten Durchmesser noch groß genug ist, um das Durchtrennen von um die Stufe geschlungenen Fäden oder Fasern einfach bewirken zu können.1 shows an embodiment in which the lower boundary of the slots (indicated here with reference number 21) has essentially the same distance from the center of the godet over the entire width of the godet 1. The depth of the slots 2, 3, 4, 5 is dimensioned such that it is still large enough in the first step 11 with the smallest diameter in order to be able to simply cut through threads or fibers wound around the step.

Wenn sich nun während des Faserherstellungsverfahrens aufgrund eines Abreißens der Fäden oder Fasern ergibt, daß sich die abgerissenen Fäden oder Fasern um die einzelnen Stufen der Galette schlingen, ist es nun in besonders einfacher Weise möglich^ diese Fäden über die gesamte Breite der Galette 1 durch nur jeweils einen Schnitt bei einem oder mehreren der Schlitze 2,3,4,5 zu durchtrennen. Das Herstellungsverfahren muß dabei nur für eine sehr kurze Zeitspanne unterbrochen werden. If, during the fiber production process, the threads or fibers are torn off and the torn threads or fibers loop around the individual steps of the godet, it is now possible in a particularly simple manner ^ to pass these threads over the entire width of the godet 1 by only to cut one cut at one or more of the slots 2, 3, 4, 5, respectively. The manufacturing process only has to be interrupted for a very short period of time.

Claims

Patentansprüche:Claims: 1) Galette (1) zum Auf- und Abwickeln von Fasern oder Fäden, wobei der Durchmesser der Galette stufenförmig in eine Richtung hin zunimmt, dadurch gekennzeichnet, daß jede der durch die stufenförmige Zunahme des Durchmessers gebildeten Stufen (11, 12, 13, 14) einen1) Galette (1) for winding and unwinding fibers or threads, the diameter of the godet increasing step-wise in one direction, characterized in that each of the steps (11, 12, 13, 14) formed by the step-like increase in diameter ) one Schlitz (2,3,4,5) aufweist, welcher in im wesentlichen axialer Richtung über die gesamte Breite der Stufe verläuft.Has slot (2,3,4,5) which extends in the substantially axial direction over the entire width of the step. 2) Galette (1) nach Anspruch 1, dadurch gekennzeichnet, daß die Tiefe des Schlitzes (2,3,4,5) zumindest gleich groß wie die Höhe der Stufe bzw. im Falle der ersten Stufe mit dem kleinsten Durchmesser (11) wie die Höhe der benachbarten Stufe (12) ist.2) godet (1) according to claim 1, characterized in that the depth of the slot (2,3,4,5) at least as large as the height of the step or in the case of the first step with the smallest diameter (11) as is the height of the adjacent step (12). 3) Galette (1) nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß ein über die gesamte Breite der Galette verlaufender Schlitz (2,3,4,5) vorgesehen ist.3) godet (1) according to claim 1 or 2, characterized in that a slot (2,3,4,5) extending over the entire width of the godet is provided. 4) Galette (1) nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Stufen (11,12,13,14) jeweils mehrere, vorzugsweise jeweils vier Schlitze (2,3,4,5) aufweisen. 4) godet (1) according to one of claims 1 to 3, characterized in that the steps (11, 12, 13, 14) each have several, preferably four, slots (2, 3, 4, 5).
PCT/AT1998/000144 1997-06-25 1998-06-15 Godet roll for winding and unwinding fibres or thread Ceased WO1999000539A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU77501/98A AU7750198A (en) 1997-06-25 1998-06-15 Godet roll for winding and unwinding fibres or thread

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT109797A AT405411B (en) 1997-06-25 1997-06-25 GALETTE FOR REWINDING AND UNWINDING FIBERS OR THREADS
ATA1097/97 1997-06-25

Publications (1)

Publication Number Publication Date
WO1999000539A1 true WO1999000539A1 (en) 1999-01-07

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PCT/AT1998/000144 Ceased WO1999000539A1 (en) 1997-06-25 1998-06-15 Godet roll for winding and unwinding fibres or thread

Country Status (3)

Country Link
AT (1) AT405411B (en)
AU (1) AU7750198A (en)
WO (1) WO1999000539A1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1074269A (en) * 1952-04-08 1954-10-04 Schweiter S A Atel Const Groove drum for winding machines
US4347991A (en) * 1978-07-06 1982-09-07 Kabushiki Kaisha Mino Seisakusho Grooved traverse drum for use in drum winder

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4042662A (en) * 1970-05-13 1977-08-16 Akzona Incorporated Continuous melt spinning and drawing of nylon 6 yarn, while reducing the liveliness of the yarn
US3978192A (en) * 1971-09-23 1976-08-31 Sussman Martin V Method of drawing fibers using a microterraced drawing surface
US4891872A (en) * 1988-05-09 1990-01-09 Sussman Martin V Apparatus for incrementally drawing fibers

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1074269A (en) * 1952-04-08 1954-10-04 Schweiter S A Atel Const Groove drum for winding machines
US4347991A (en) * 1978-07-06 1982-09-07 Kabushiki Kaisha Mino Seisakusho Grooved traverse drum for use in drum winder

Also Published As

Publication number Publication date
AU7750198A (en) 1999-01-19
ATA109797A (en) 1998-12-15
AT405411B (en) 1999-08-25

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