EP0470949A2 - Apparatus for continuous spinning of filaments - Google Patents
Apparatus for continuous spinning of filaments Download PDFInfo
- Publication number
- EP0470949A2 EP0470949A2 EP91890175A EP91890175A EP0470949A2 EP 0470949 A2 EP0470949 A2 EP 0470949A2 EP 91890175 A EP91890175 A EP 91890175A EP 91890175 A EP91890175 A EP 91890175A EP 0470949 A2 EP0470949 A2 EP 0470949A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- roller
- zone
- rollers
- axis
- pair
- 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.)
- Granted
Links
- 238000009987 spinning Methods 0.000 title claims abstract description 14
- 238000001035 drying Methods 0.000 claims abstract description 24
- 230000015271 coagulation Effects 0.000 claims abstract description 12
- 238000005345 coagulation Methods 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 7
- 238000010924 continuous production Methods 0.000 claims abstract description 4
- 238000002166 wet spinning Methods 0.000 claims abstract description 4
- 230000004323 axial length Effects 0.000 claims description 2
- 238000005406 washing Methods 0.000 abstract description 7
- 229920000297 Rayon Polymers 0.000 abstract description 4
- LFTLOKWAGJYHHR-UHFFFAOYSA-N N-methylmorpholine N-oxide Chemical compound CN1(=O)CCOCC1 LFTLOKWAGJYHHR-UHFFFAOYSA-N 0.000 abstract description 2
- 230000003247 decreasing effect Effects 0.000 abstract description 2
- 238000007711 solidification Methods 0.000 abstract 2
- 230000008023 solidification Effects 0.000 abstract 2
- 239000002904 solvent Substances 0.000 abstract 1
- 238000004804 winding Methods 0.000 description 9
- 238000007596 consolidation process Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
- D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
- D01D10/04—Supporting filaments or the like during their treatment
- D01D10/0436—Supporting filaments or the like during their treatment while in continuous movement
- D01D10/0445—Supporting filaments or the like during their treatment while in continuous movement using rollers with mutually inclined axes
-
- 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
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/06—Wet spinning methods
Definitions
- the invention relates to a spinning machine for the continuous production of extruded filaments by a wet spinning process with or without an air gap, with at least one pair of rollers whose axes are inclined to one another and which has a wet zone in the axial direction for the thread coming from a spinneret or a coagulation bath which connects a drying zone.
- the wet zone comprises an area of thread consolidation and an adjoining area of deacidification by washing.
- the drying zone includes a heated roll area.
- the angular position of the roller axes leads to constant distances between the thread turns, e.g. B. 6 mm over the entire length of the roller.
- the large thread spacing is of crucial importance in the entire wet area because this prevents the thread turns from sticking together.
- Due to the large thread spacing in the drying area the rollers must be particularly long because a certain heated path length in the roller contact is necessary for drying. A particularly stable thread run is just as important as measures to prevent the individual thread turns from sticking together, for example by thread guide elements.
- the invention aims to design the thread transport over a pair of rollers along a helical thread track with variable lateral winding spacing in such a way that, without additional thread guide elements, both compliance with the wet conditions the post-treatment distance required lateral safety distance (e.g. in the case of filaments with 110 dtex approx. 4-6 mm) as well as its continuous reduction in the drying area to the required minimum is made possible, whereby with reduced roll lengths, which among other things also improve the usability entails a corresponding economic use of drying energy and at the same time optimal production speed can be guaranteed.
- This is achieved in that the axes of the pair of rollers form an angle to one another both in a vertical reference plane and in a horizontal reference plane.
- the angle in can be determined by determining Coordination with the roller diameters and the center distance, a thread course can be achieved in which the winding distances in the wet zone are large and z. B. continuously reduce to the drying zone.
- the pair of rollers Due to the winding distance on the pair of rollers, which decreases from 6 mm at the beginning of the wet zone to 0.5 mm in the drying zone, a better efficiency in the course of the process can be achieved on a pair of rollers with a shorter overall length and less energy consumption, in particular for the roller heating. It is useful if the pair of rollers is designed as a main and auxiliary roller and the auxiliary roller has a smaller diameter than the main roller. A diameter ratio of 1: 3 or 1: 4 is particularly advantageous. In practice, an arrangement has proven to be particularly advantageous in which, with the horizontal axis arrangement of one roller, for example the main roller, the axis of the other roller, e.g. B.
- auxiliary roller the main roller axis crosses in vertical projection at about a third of its length in the area of the wet zone and the coordinates of the axle bearing positions of this roller, e.g. auxiliary roller, differ from the coordinates of the axle bearing positions of an arrangement of a roller, e.g. auxiliary roller parallel to the main roller, in both coordinate directions .
- At least one of the rollers of the pair of rollers can be designed to rise conically towards the drying zone over a portion of its axial length, preferably the area of deacidification.
- the other roller usually follows, e.g. B. the auxiliary roller, in its diameter configuration on a proportional scale to the shape of the main roller.
- FIG. 1 shows a view of a main and an auxiliary roller with an indicated thread course
- Fig. 2 shows the front view of this with coagulation bath and spinneret
- Fig. 3 shows a plan of Fig. 1, but only the roller axes.
- a viscose thread 1 is formed according to FIG. 2 in a coagulation bath 2 by means of a spinneret 3.
- the thread 1 is pulled up from the bath 2 with coagulant and carried in turns over a main roller 4 and an auxiliary roller 5.
- the main roller 4 comprises a wet section 6, which extends over approximately three-quarters of its length, and a heated drying section 7. In the wet section 6, the thread is consolidated in an acid phase 8 and then deacidified in a washing phase 9.
- the axis 5 'of the auxiliary roller 5 is inclined in the vertical plane through the axis 4' of the main roller 4 to the axis 4 '(Fig. 1) and additionally rotated out of the vertical plane (Fig. 3).
- the inclination of the axis 5 'against the horizontal axis 4' can be seen in Fig. 1, the rotation of the axis 5 'with respect to the axis 4' shows Fig. 3 in the plan of the axes very clearly.
- Fig. 2 shows the axes, namely the main roller axis 4 'in point projection and the auxiliary roller axis 5' in a skewed position. This arrangement leads to the thread course indicated in FIG.
- the main roller 4 and optionally the auxiliary roller 5 can be slightly conical (increasing in the direction of the drying phase). This conical area can be limited to zone 9, which extends approximately from the crossing point 10 of the axes 4 ', 5' to the heated drying zone 7.
- the diameter of the main roller 1 is approximately 180 mm and that of the auxiliary roller approximately 50 mm.
- the auxiliary roller end point of the axis 5 'on the dry part side comes in a position of approx. 136 mm below the main roller axis 4' and approx. 61 mm to the left, the end point of the auxiliary roller 5 on the coagulation bath side in a position of Approx. 113 mm below the main roller axis 4 'and approx. 52 mm to the right, both based on the original common roller plane (vertical plane).
- the crossing point i. H.
- the lateral spacing of the first of the helical windings in region 8 of FIG. 1 is approximately 9 mm at 110 dtex and decreases continuously in order to be 0.8 mm in the last windings in region 7.
- the required crossing angle of the roller axles must be adapted to the titer to be spun depending on the roller diameter and roller spacing.
- the surface temperature of the drying section and thus also the energy required for this can therefore be significantly reduced with a comparable space requirement with regard to the roller arrangement and the same spinning speeds due to the extended contact time in the drying area.
- the roller pairs according to the invention several of these devices can also be arranged one above the other in a particularly space-saving manner while maintaining ease of use when piecing or changing bobbins.
- the textile data of the spun yarns correspond to the value level customary for yarns (continuous yarns) produced in a continuous process.
- the spinning machine has been tested for viscose processes and is suitable for wet spinning processes with or without an air gap in general, including solution spinning processes, as well as for NMMO processes.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Artificial Filaments (AREA)
Abstract
Description
Die Erfindung betrifft eine Spinnmaschine zur kontinuierlichen Herstellung von extrudierten Filamenten durch ein Naßspinnverfahren mit oder ohne Luftspalt, mit mindestens einem Walzenpaar, deren Achsen zueinander schräggestellt sind und die in axialer Richtung eine Naßzone für den von einer Spinndüse bzw. einem Koagulationsbad kommenden Faden aufweist, an welche eine Trocknungszone anschließt.The invention relates to a spinning machine for the continuous production of extruded filaments by a wet spinning process with or without an air gap, with at least one pair of rollers whose axes are inclined to one another and which has a wet zone in the axial direction for the thread coming from a spinneret or a coagulation bath which connects a drying zone.
Gemäß dem Stand der Technik, wie er im Fachbuch Götze, "Chemiefasernnach dem Viskoseverfahren", 3. Auflage, 1967, Seite 900, Verlag Springer, Berlin, Heidelberg, New York, beschrieben ist, wird ein an einer Spinndüse frisch gebildeter Faden von einem Walzenpaar aus einem Koagulationsbad gezogen. Der Faden wird wendelförmig über das Walzenpaar geführt, wobei die Achsen der Walzen in einer Ebene liegen, jedoch nicht parallel zueinander verlaufen, sondern einen Winkel zueinander einschließen. Der um beide Walzen geführte Faden hat das Bestreben, zum gedachten Schnittpunkt der Walzen hinzulaufen, wodurch sich ein selbsttätiger, gleichmäßiger Fadenvorschub längs der Walzen und der Naß- und Trocknungszone ergibt. Die Naßzone umfaßt einen Bereich der Fadenverfestigung und einen daran anschließenden Bereich der Entsäuerung durch Waschen. Die Trocknungszone umfaßt einen beheizten Walzenbereich. Die Winkelstellung der Walzenachsen führt zu konstanten Abständen der Fadenwindungen,z. B. 6 mm über die gesamte Walzenlänge. Der große Fadenabstand ist im gesamten Naßbereich von ausschlaggebender Wichtigkeit, weil dadurch ein Zusammenkleben der Fadenwindungen vermieden wird. Sobald der Faden verfestigt ist, also insbesondere in der Trocknungsphase, besteht die Notwendigkeit eines großen Windungsabstandes nicht. Durch den großen Fadenabstand auch im Trocknungsbereich müssen die Walzen besonders lang sein, weil eine gewisse beheizte Weglänge im Walzenkontakt für die Trocknung notwendig ist. Ein besonders stabiler Fadenlauf ist ebenso wichtig, wie Maßnahmen zur Vermeidung des Aneinanderhaftens der einzelnen Fadenwindungen, etwa durch Fadenführungsorgane.According to the state of the art, as described in the specialist book Götze, "Chemical fibers according to the viscose process", 3rd edition, 1967, page 900, publisher Springer, Berlin, Heidelberg, New York, a thread freshly formed on a spinneret is replaced by one A pair of rollers are pulled out of a coagulation bath. The thread is passed helically over the pair of rollers, the axes of the rollers lying in one plane, but not running parallel to one another, but enclosing an angle to one another. The thread running around both rollers tends to run to the imaginary intersection of the rollers, which results in an automatic, even thread feed along the rollers and the wet and drying zone. The wet zone comprises an area of thread consolidation and an adjoining area of deacidification by washing. The drying zone includes a heated roll area. The angular position of the roller axes leads to constant distances between the thread turns, e.g. B. 6 mm over the entire length of the roller. The large thread spacing is of crucial importance in the entire wet area because this prevents the thread turns from sticking together. As soon as the thread has solidified, in particular in the drying phase, there is no need for a large winding spacing. Due to the large thread spacing in the drying area, the rollers must be particularly long because a certain heated path length in the roller contact is necessary for drying. A particularly stable thread run is just as important as measures to prevent the individual thread turns from sticking together, for example by thread guide elements.
Die Erfindung zielt darauf ab, den Fadentransport über ein Walzenpaar entlang einer wendelförmigen Fadenspur mit variablem seitlichen Windungsabstand derart zu gestalten, daß ohne zusätzliche Fadenführungsorgane sowohl die Einhaltung des im Naßbereich der Nachbehandlungsstrecke erforderlichen seitlichen Sicherheitsabstandes (z. B. im Falle von Filamenten mit 110 dtex ca. 4-6 mm) wie auch dessen kontinuierliche Reduktion im Trocknungsbereich auf das erforderliche Mindestmaß ermöglicht wird, wodurch bei reduzierten Walzenlängen,die u.a. auch eine Verbesserung der Bedienbarkeit mit sich bringt, eine entsprechend wirtschaftliche Ausnutzung der Trocknungsenergie und gleichzeitig optimale Produktionsgeschwindigkeit gewährleistet werden kann. Dies wird dadurch erreicht, daß die Achsen des Walzenpaares sowohl in einer vertikalen Bezugsebene als auch in einer horizontalen Bezugsebene einen Winkel zueinander einschließen. Wenn also die Achsen der Walzenpaare nicht nur in einer Projektion auf eine Vertikalebene durch eine der Achsen einen Winkel zueinander einschließen, sondern darüber hinaus eine der Achsen noch aus einer Vertikalebene verdreht ist, also die Achsen windschief zueinander verlaufen, dann kann durch Bestimmung der Winkel in Abstimmung mit den Walzendurchmessern und dem Achsabstand ein Fadenverlauf erreicht werden, bei dem die Windungsabstände in der Naßzone groß sind und sich z. B. kontinuierlich bis zur Trocknungszone verkleinern. Durch den sich beispielsweise von 6 mm zu Beginn der Naßzone auf 0,5 mm in der Trocknungszone verkleinernden Windungsabstand auf dem Walzenpaar kann auf einem Walzenpaar bei kürzerer Gesamtlänge und geringerem Energieaufwand, insbesondere für die Walzenheizung, ein besserer Wirkungsgrad bei dem Verfahrensablauf erreicht werden. Dabei ist es zweckmäßig, wenn das Walzenpaar als Haupt- und Hilfswalze ausgebildet ist und die Hilfswalze einen kleineren Durchmesser aufweist als die Hauptwalze. Besonders vorteilhaft ist ein Durchmesserverhältnis von 1:3 bzw. 1:4. In der Praxis hat sich eine Anordnung als besonders vorteilhaft erwiesen, bei der bei horizontaler Achsenanordnung der einen Walze, beispielsweise der Hauptwalze, die Achse der anderen Walze, z. B. Hilfswalze, die Hauptwalzenachse in vertikaler Projektion bei etwa einem Drittel ihrer Länge im Bereich der Naßzone kreuzt und die Koordinaten der Achslagerpositionen dieser Walze, z.B.Hilfswalze, von den Koordinaten der Achslagerpositionen einer zur Hauptwalze parallelen Anordnung einer Walze, z.B. Hilfswalze, in beiden Koordinatenrichtungen abweichen. Um die Fadenverkürzungen und Dehnungen bei der Koagulation, der Verfestigung, der Waschphase und bei der Trocknungsphase noch besser zu berücksichtigen, kann mindestens eine der Walzen des Walzenpaares über einem Teilbereich ihrer axialen Länge, vorzugsweise dem Bereich der Entsäuerung, konisch gegen die Trocknungszone hin ansteigend ausgebildet sein. Zumeist folgt jedoch auch die andere Walze, z. B. die Hilfswalze, in ihrer Durchmesserkonfiguration in proportionalem Maßstab der Formgebung der Hauptwalze.The invention aims to design the thread transport over a pair of rollers along a helical thread track with variable lateral winding spacing in such a way that, without additional thread guide elements, both compliance with the wet conditions the post-treatment distance required lateral safety distance (e.g. in the case of filaments with 110 dtex approx. 4-6 mm) as well as its continuous reduction in the drying area to the required minimum is made possible, whereby with reduced roll lengths, which among other things also improve the usability entails a corresponding economic use of drying energy and at the same time optimal production speed can be guaranteed. This is achieved in that the axes of the pair of rollers form an angle to one another both in a vertical reference plane and in a horizontal reference plane. So if the axes of the roller pairs not only enclose an angle to one another in a projection onto a vertical plane through one of the axes, but also one of the axes is still twisted from a vertical plane, i.e. the axes are skewed to one another, then the angle in can be determined by determining Coordination with the roller diameters and the center distance, a thread course can be achieved in which the winding distances in the wet zone are large and z. B. continuously reduce to the drying zone. Due to the winding distance on the pair of rollers, which decreases from 6 mm at the beginning of the wet zone to 0.5 mm in the drying zone, a better efficiency in the course of the process can be achieved on a pair of rollers with a shorter overall length and less energy consumption, in particular for the roller heating. It is useful if the pair of rollers is designed as a main and auxiliary roller and the auxiliary roller has a smaller diameter than the main roller. A diameter ratio of 1: 3 or 1: 4 is particularly advantageous. In practice, an arrangement has proven to be particularly advantageous in which, with the horizontal axis arrangement of one roller, for example the main roller, the axis of the other roller, e.g. B. auxiliary roller, the main roller axis crosses in vertical projection at about a third of its length in the area of the wet zone and the coordinates of the axle bearing positions of this roller, e.g. auxiliary roller, differ from the coordinates of the axle bearing positions of an arrangement of a roller, e.g. auxiliary roller parallel to the main roller, in both coordinate directions . In order to take even better account of the thread shortening and elongation during coagulation, consolidation, the washing phase and the drying phase, At least one of the rollers of the pair of rollers can be designed to rise conically towards the drying zone over a portion of its axial length, preferably the area of deacidification. However, the other roller usually follows, e.g. B. the auxiliary roller, in its diameter configuration on a proportional scale to the shape of the main roller.
Ein Ausführungsbeispiel der erfindungsgemäßen Spinnmaschine ist schematisch in den Zeichnungen dargestellt. Fig. 1 zeigt eine Ansicht einer Haupt- und einer Hilfswalze mit einem angedeuteten Fadenverlauf, Fig. 2 die Stirnansicht dazu mit Koagulationsbad und Spinndüse und Fig. 3 einen Grundriß zu Fig. 1, jedoch lediglich der Walzenachsen.An embodiment of the spinning machine according to the invention is shown schematically in the drawings. Fig. 1 shows a view of a main and an auxiliary roller with an indicated thread course, Fig. 2 shows the front view of this with coagulation bath and spinneret and Fig. 3 shows a plan of Fig. 1, but only the roller axes.
Ein Viskosefaden 1 wird gemäß Fig. 2 in einem Koagulationsbad 2 mittels einer Spinndüse 3 gebildet. Der Faden 1 wird unter Mitnahme von Koagulationsmittel aus dem Bad 2 hochgezogen und in Windungen über eine Hauptwalze 4 und eine Hilfswalze 5 geführt. Die Hauptwalze 4 umfaßt einen Naßteil 6, der sich über etwa dreiviertel ihrer Länge erstreckt und einem beheizten Trocknungsteil 7. Im Naßteil 6 erfolgt in einer sauren Phase 8 die Fadenverfestigung und daran anschließend die Entsäuerung in einer Waschphase 9.A
Die Achse 5′ der Hilfswalze 5 ist in der Vertikalebene durch die Achse 4′ der Hauptwalze 4 zu der Achse 4′ geneigt (Fig. 1) und zusätzlich aus der Vertikalebene herausgedreht (Fig. 3). Die Neigungder Achse 5′ gegen die horizontale Achse 4′ ist in Fig. 1 erkennbar, die Verdrehung der Achse 5′ gegenüber der Achse 4′ zeigt Fig. 3 im Grundriß der Achsen ganz deutlich. Auch Fig. 2 zeigt die Achsen, nämlich die Hauptwalzenachse 4′ in Punktprojektion und die Hilfswalzenachse 5′ in windschiefer Position dazu. Diese Anordnung führt zu dem in Fig. 1 angedeuteten Fadenverlauf mit einem sich von der Naßzone 6 zur Trocknungszone 7 hin verringernden Windungsabstand des Fadens 1. Damit ist sichergestellt, daß es bei der Fadenverfestigung in der sauren Koagulationsphase 8, bei der noch verhältnismäßig viel saures Koagulationsbad vom Faden mitgenommen wird, nicht zu einer gegenseitigen Fadenberührung einschließlich seines mitgezogenen Naßbereiches kommt. In der Waschphase 9 wird Wasser über Düsen auf die Walze 4 gespritzt, der bereits verfestigte Faden wird entsäuert und unterliegt einer Dehnung. Die Windungsabstände sind dort wesentlich verkleinert. In der Trocknungszone 7 kommt es darauf an, daß zur bestmöglichen Ausnützung der beheizten Walzenfläche möglichst viele Windungen bzw. Umschlingungen über die Walze 4 führen. Da sich durch die Ausrichtung der Achsen 4′ und 5′ im Endbereich des Walzenpaares ein geringer Windungsabstand ergibt, wird der oben genannten Forderung bezüglich der Trocknung optimal entsprochen. Durch Änderung der Achsenschrägstellung können die Windungsabstände vergrößert und verkleinert werden. Um der Fadenverlängerung infolge der waschungsbedingten Dehnung Rechnung zu tragen, kann die Hauptwalze 4 und gegebenenfalls die Hilfswalze 5 leicht konisch (in Richtung zur Trocknungsphase ansteigend) ausgebildet sein. Dieser konische Bereich kann auf die Zone 9 eingeschränkt sein, die etwa vom Kreuzungspunkt 10 der Achsen 4′, 5′ bis zur beheizten Trockungszone 7 verläuft.The axis 5 'of the
Bei einer im Betrieb befindlichen Spinnmaschine beträgt der Durchmesser der Hauptwalze 1 etwa 180 mm und jener der Hilfswalze etwa 50 mm. Bei der Betrachtung von der Koagulationsbadseite her (Fig. 2) kommt der trockenteilseitige Hilfswalzenendpunkt der Achse 5′ in einer Position von ca. 136 mm unterhalb der Hauptwalzenachse 4′ und ca. 61 mm links, der koagulationsbadseitige Endpunkt der Hilfswalze 5 in einer Position von ca. 113 mm unter der Hauptwalzenachse 4′ und ca. 52 mm rechts, beides auf die ursprüngliche gemeinsame Walzenebene (Vertikalebene) bezogen, zu liegen. Der Kreuzungspunkt, d. h. der Punkt des geringsten Achsabstandes, befindet sich bei dieser Anordnung koagulationsbadseitig etwa im ersten Vierteil der Walzenlängen. Der seitliche Abstand der ersten der schraubenlinienförmigen Windungen beträgt im Bereich 8 der Fig. 1 bei 110 dtex ca. 9 mm und verringert sich kontinuierlich, um bei den letzten Umwindungen im Bereich 7 0,8 mm zu betragen. Die Wahl der seitlichen Abstände der schraubenlinienförmigen Windungen, d. h. der erforderliche Kreuzungswinkel der Walzenaschsen, ist in Abhängigkeit von Walzendurchmesser und Walzenabstand an den jeweils zu spinnenden Titer anzupassen.In the case of a spinning machine in operation, the diameter of the
Bei gleichen Walzenabmessungen, jedoch mit den nach dem Stand der Technik in einer gemeinsamen Ebene angeordneten Walzenlängsachsen werden je nach Anstellwinkel der Achsen zueinander variable, aber über die gesamte Walzenlänge gleiche seitliche Abstände der einzelnen Umwindungen erzeugt. In der Praxis mußte bei einem Titer von 110 dtex für einen störungsfreien Spinnprozeß ein seitlicher Mindestabstand von 4,5 mm eingehalten werden, d. h. bei einer gleichen nutzbaren Trockenteillänge von 270 mm konnten daher nur 60 Umwindungen untergebracht werden, das sind nur 36 % der beim erfindungsgemäßen Beispiel erzielbaren Fadenlänge im Trockenteilbereich. Durch die erfindungsgemäße Anordnung kann daher bei vergleichbarem Raumbedarf hinsichtlich der Walzenanordnung und gleichen Spinngeschwindigkeiten infolge der verlängerten Kontaktzeit im Trockenbereich die Oberflächentemperatur des Trockenteils und damit auch der hiefür erforderliche Energiebedarf deutlich gesenkt werden. Durch die erfindungsgemäße Anrodnung der Walzenpaare können außerdem unter gleichzeitiger Erhaltung der leichten Bedienbarkeit beim Anspinnen bzw. Spulenwechsel mehrere dieser Vorrichtungen etagenweise übereinander in besonders raumsparender Weise angeordnet werden.With the same roller dimensions, but with the longitudinal axes of the rollers arranged according to the prior art in a common plane, the axes are mutually dependent on the angle of attack variable, but equal lateral distances of the individual wraps over the entire length of the roll. In practice, with a titer of 110 dtex for a trouble-free spinning process, a minimum lateral spacing of 4.5 mm had to be observed, i.e. with a usable dry part length of 270 mm, only 60 turns could be accommodated, which is only 36% of those in the invention Example achievable thread length in the dry section. With the arrangement according to the invention, the surface temperature of the drying section and thus also the energy required for this can therefore be significantly reduced with a comparable space requirement with regard to the roller arrangement and the same spinning speeds due to the extended contact time in the drying area. By arranging the roller pairs according to the invention, several of these devices can also be arranged one above the other in a particularly space-saving manner while maintaining ease of use when piecing or changing bobbins.
Die textilen Daten der gesponnenen Garne entsprechen in beiden Beispielen dem für im kontinuierlichen Verfahren hergestellten Garnen (Continuegarne) üblichen Wertniveau.In both examples, the textile data of the spun yarns correspond to the value level customary for yarns (continuous yarns) produced in a continuous process.
Die Spinnmaschine ist für Viskoseverfahren erprobt und für Naßspinnverfahren mit oder ohne Luftspalt im allgemeinen einschließlich der Lösungsspinnverfahren wie auch für NMMO-Verfahren geeignet.The spinning machine has been tested for viscose processes and is suitable for wet spinning processes with or without an air gap in general, including solution spinning processes, as well as for NMMO processes.
Claims (5)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT0167990A AT399518B (en) | 1990-08-10 | 1990-08-10 | SPINNING MACHINE FOR CONTINUOUS PRODUCTION OF FILAMENTS |
| AT1679/90 | 1990-08-10 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0470949A2 true EP0470949A2 (en) | 1992-02-12 |
| EP0470949A3 EP0470949A3 (en) | 1992-09-30 |
| EP0470949B1 EP0470949B1 (en) | 1995-02-01 |
Family
ID=3518649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP91890175A Expired - Lifetime EP0470949B1 (en) | 1990-08-10 | 1991-08-08 | Apparatus for continuous spinning of filaments |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US5259743A (en) |
| EP (1) | EP0470949B1 (en) |
| CN (1) | CN1060319A (en) |
| AT (1) | AT399518B (en) |
| DE (1) | DE59104464D1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19634072A1 (en) * | 1996-08-23 | 1998-03-05 | Maurer Sa Ing A | Fluid-saving filament thread wet-spinning unit with good saturation |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6926772B2 (en) * | 2002-02-27 | 2005-08-09 | 3M Innovative Properties Company | Strand coating device and method |
| US7981337B2 (en) * | 2006-04-21 | 2011-07-19 | Wuhan University | Use of aqueous NaOH/thiourea solution in pilot-scale production of cellulose products |
| CN101775669B (en) * | 2009-12-18 | 2012-01-11 | 宜宾海丝特纤维有限责任公司 | Continuous spinning process for viscose coarse denier flat filament |
| CN103409820B (en) * | 2013-06-29 | 2015-07-01 | 宜宾海丝特纤维有限责任公司 | Spinning technology of four-spinning-roller semi-continuous high-speed spinning machine |
| CN103409822B (en) * | 2013-06-29 | 2015-07-01 | 宜宾海丝特纤维有限责任公司 | Ultra-fine-denier filament spinning process of semi-continuous high-speed spinning machine |
| CN103409827B (en) * | 2013-06-29 | 2015-04-22 | 宜宾海丝特纤维有限责任公司 | Control system of semi-continuous and high-speed spinning machine |
| CN103290501B (en) * | 2013-06-29 | 2016-06-29 | 宜宾海丝特纤维有限责任公司 | Semicontinuous high-speed spinning machine |
| CN103409821B (en) * | 2013-06-29 | 2015-07-01 | 宜宾海丝特纤维有限责任公司 | Heavy-denier-yarn spinning technology of semi-continuous and high-speed spinning machine |
| CN103305935B (en) * | 2013-06-29 | 2015-07-01 | 宜宾海丝特纤维有限责任公司 | Spinning technology of semi continuous high speed spinning machine |
| CN103628160B (en) * | 2013-12-04 | 2015-07-01 | 宜宾丝丽雅集团有限公司 | Spinning process of semi-continuous high-speed spinning machine |
| CN113186611A (en) * | 2021-04-30 | 2021-07-30 | 成都新晨新材科技有限公司 | PBO filament continuous washing device and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2107451A (en) * | 1935-09-28 | 1938-02-08 | Tubize Chatillon Corp | Manufacture of rayon and the like |
| DE746281C (en) * | 1934-09-11 | 1944-06-15 | Lustrafil Ltd | Device for the treatment of running single threads with thread guidance in helical turns |
| GB772865A (en) * | 1952-10-01 | 1957-04-17 | Jannink And Sons Ltd G | Improvements relating to the manufacture of rayon yarn |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE20356E (en) * | 1937-05-11 | Method of equalizing the dyeing qualities of artificial | ||
| GB385601A (en) * | 1931-03-26 | 1932-12-28 | Alfred William Farnsworth | Improvements in jib cranes, derricks and the like |
| US2155324A (en) * | 1937-04-09 | 1939-04-18 | American Enka Corp | Manufacture of artificial silk |
| US2346696A (en) * | 1940-03-05 | 1944-04-18 | American Enka Corp | Manufacture of rayon |
| FR955561A (en) * | 1946-12-17 | 1950-01-17 | ||
| BE479531A (en) * | 1947-01-17 | |||
| NL76321C (en) * | 1947-04-14 | |||
| US2570173A (en) * | 1950-05-17 | 1951-10-02 | Kohorn Henry Von | Method of producing yarn |
| IT535752A (en) * | 1951-11-08 | |||
| US2788256A (en) * | 1952-06-02 | 1957-04-09 | American Viscose Corp | Method of spinning filamentary strands |
| US2984889A (en) * | 1957-03-12 | 1961-05-23 | American Viscose Corp | Regenerated cellulose filament having large and small denier sections |
| GB1493221A (en) * | 1976-01-22 | 1977-11-30 | Gritskov I | Apparatus for spinning artificial filaments |
| US4477951A (en) * | 1978-12-15 | 1984-10-23 | Fiber Associates, Inc. | Viscose rayon spinning machine |
| JPS59204907A (en) * | 1983-05-02 | 1984-11-20 | Asahi Chem Ind Co Ltd | Continuous wet-spinning process and device therefor |
-
1990
- 1990-08-10 AT AT0167990A patent/AT399518B/en not_active IP Right Cessation
-
1991
- 1991-08-08 DE DE59104464T patent/DE59104464D1/en not_active Expired - Fee Related
- 1991-08-08 EP EP91890175A patent/EP0470949B1/en not_active Expired - Lifetime
- 1991-08-09 US US07/743,042 patent/US5259743A/en not_active Expired - Fee Related
- 1991-08-09 CN CN91105950.4A patent/CN1060319A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE746281C (en) * | 1934-09-11 | 1944-06-15 | Lustrafil Ltd | Device for the treatment of running single threads with thread guidance in helical turns |
| US2107451A (en) * | 1935-09-28 | 1938-02-08 | Tubize Chatillon Corp | Manufacture of rayon and the like |
| GB772865A (en) * | 1952-10-01 | 1957-04-17 | Jannink And Sons Ltd G | Improvements relating to the manufacture of rayon yarn |
Non-Patent Citations (2)
| Title |
|---|
| MONCRIEFF R.W. 'man.made fibres' 1975 , NEWNES-BUTTERWORTHS LONDON, GB. * |
| MONCRIEFF R.W. 'man.made fibres' 1975 , NEWNES-BUTTERWORTHS LONDON, GB. page 185, Par.2 - page 187, Par.1, page 186 part 4 - 7. * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19634072A1 (en) * | 1996-08-23 | 1998-03-05 | Maurer Sa Ing A | Fluid-saving filament thread wet-spinning unit with good saturation |
| DE19634072B4 (en) * | 1996-08-23 | 2004-04-29 | Zimmer Ag | Device for the continuous after-treatment of filament threads |
Also Published As
| Publication number | Publication date |
|---|---|
| AT399518B (en) | 1995-05-26 |
| CN1060319A (en) | 1992-04-15 |
| EP0470949A3 (en) | 1992-09-30 |
| ATA167990A (en) | 1991-09-15 |
| DE59104464D1 (en) | 1995-03-16 |
| US5259743A (en) | 1993-11-09 |
| EP0470949B1 (en) | 1995-02-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE2660983C2 (en) | Process for pneumatic twist spinning | |
| DE2620118A1 (en) | YARN SPINNING MACHINE | |
| DE2758823C2 (en) | Apparatus for spinning a fiber yarn | |
| EP0470949B1 (en) | Apparatus for continuous spinning of filaments | |
| DE3943600C2 (en) | Method and device for producing a multiple thread and multiple thread | |
| DE1907782C3 (en) | Spinning draw winder | |
| EP3371360A1 (en) | Device and method for producing knitted fabric | |
| DE2264040C3 (en) | Device for producing a voluminous yarn | |
| DE1435637C3 (en) | Process for the production of oriented polyester threads with low surface friction | |
| DE1660223C3 (en) | Process for the production of endless thread-like structures with thermoplastics | |
| EP0718424A2 (en) | Draw texturing apparatus for synthetic yarns | |
| DE2645119C3 (en) | Process for the production of a coregaras | |
| DE8124334U1 (en) | DEVICE FOR PRODUCING EFFECT YARN | |
| EP0874923B1 (en) | Method and device for the wet spinning, drawing and winding up of a multiple thread yarn | |
| AT361814B (en) | DEVICE FOR PRODUCING A YARN | |
| DE839243C (en) | Method and device for the production of a shrunk dry rayon thread | |
| DE2128838A1 (en) | Apparatus and method for crimping thread material | |
| CH476875A (en) | Equipment for the production of yarns with high tensile strength, low extensibility and a smooth surface from artificial or synthetic material | |
| DE3100368C2 (en) | ||
| DE3735752C2 (en) | Process for the production of plain yarn from polyamide or polyester | |
| DE69103017T2 (en) | IMPROVED YARN SEPARATION AT START. | |
| DE1660210A1 (en) | Device for thread separation for false twist curling machines | |
| EP1258547A1 (en) | Air-jet textured yarn and method of its manufacture | |
| DE1435720A1 (en) | Thread twist control device | |
| DE1660400C3 (en) | Process for the production of compact multifilament yarns |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): BE CH DE ES FR GR IT LI NL |
|
| PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
| AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): BE CH DE ES FR GR IT LI NL |
|
| 17P | Request for examination filed |
Effective date: 19921207 |
|
| 17Q | First examination report despatched |
Effective date: 19930817 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): BE CH DE ES FR GR IT LI NL |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Effective date: 19950201 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 19950201 Ref country code: FR Effective date: 19950201 Ref country code: ES Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY Effective date: 19950201 Ref country code: BE Effective date: 19950201 |
|
| RAP2 | Party data changed (patent owner data changed or rights of a patent transferred) |
Owner name: ING. A. MAURER SA |
|
| ITF | It: translation for a ep patent filed | ||
| REF | Corresponds to: |
Ref document number: 59104464 Country of ref document: DE Date of ref document: 19950316 |
|
| EN | Fr: translation not filed | ||
| NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed | ||
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 19960812 Year of fee payment: 6 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 19970818 Year of fee payment: 7 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19970831 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19970831 |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990601 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20050808 |