EP0731196A1 - Procédé pour le filage, l'étirage et le bobinage d'un fil synthétique - Google Patents

Procédé pour le filage, l'étirage et le bobinage d'un fil synthétique Download PDF

Info

Publication number
EP0731196A1
EP0731196A1 EP96102184A EP96102184A EP0731196A1 EP 0731196 A1 EP0731196 A1 EP 0731196A1 EP 96102184 A EP96102184 A EP 96102184A EP 96102184 A EP96102184 A EP 96102184A EP 0731196 A1 EP0731196 A1 EP 0731196A1
Authority
EP
European Patent Office
Prior art keywords
thread
heating
stretching
spinning
zone
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
Application number
EP96102184A
Other languages
German (de)
English (en)
Other versions
EP0731196B1 (fr
Inventor
Heinz Schippers
Rahim Gross
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.)
Oerlikon Barmag AG
Original Assignee
Barmag AG
Barmag Barmer Maschinenfabrik 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
Priority claimed from DE19506369A external-priority patent/DE19506369A1/de
Application filed by Barmag AG, Barmag Barmer Maschinenfabrik AG filed Critical Barmag AG
Publication of EP0731196A1 publication Critical patent/EP0731196A1/fr
Application granted granted Critical
Publication of EP0731196B1 publication Critical patent/EP0731196B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
    • 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
    • D01D10/02—Heat treatment
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D02J1/224—Selection or control of the temperature during stretching
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
    • D02J13/001—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass in a tube or vessel
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
    • D02J13/005—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass by contact with at least one rotating roll

Definitions

  • the invention relates to a method and a device for spinning, drawing and winding up a synthetic thread according to the preamble of claims 1 and 19, respectively.
  • the advantage of this solution is that the textile technological properties are not adversely affected by the shrink-free treatment according to the invention.
  • the thread can still have a high tendency to shrink, e.g. B. expressed as cooking shrinkage.
  • the supplying plants which lead the thread into the shrinkage treatment zone or pull it off need not be heated. This is not only a significant simplification in terms of mechanical engineering, but also allows the process to be carried out more cheaply.
  • the thread is only subjected to a thread tensile force which is lower than the tensile force required to stretch the already oriented thread.
  • the heating surface temperature is preferably higher than 350 ° C, for threads made of polypropylene preferably higher than 200 ° C.
  • this makes it possible to guide the thread in the spinning zone and / or the shrinking zone and / or the winding zone with very low thread tension without the risk of an unsteady thread run or a winder formation on the godet or any other process disruption.
  • the embodiment according to claim 4 serves the purpose of guiding the thread at a precise predetermined distance from the heating surface. A distance of 0.5 to 3.5 mm is desirable.
  • the embodiment according to claim 6 has the advantage that the thread tension is set very evenly and thus the shrinkage can be set very specifically.
  • the drawn threads that are formed are very prone to shrinkage and present considerable difficulties when winding up.
  • the method variant according to claim 8 can be used advantageously.
  • a high quality polyester spool can be made from a thread that has a cooking shrinkage of more than 20% after unwinding.
  • the shrink free treatment according to the invention is of particular importance for the polyamides.
  • a particularly advantageous stretching method according to claim 12 is that the threads are drawn from the godet at a high speed of more than 3,500 m / min from the spinneret and are passed through a narrow heating tube. The drawing takes place in the heating tube as a result of the thread tensile force and heating of the thread.
  • This method was previously not feasible for materials with a high tendency to shrink, in particular nylon and polypropylene, since the threads receive a high tendency to bobbin shrinkage with this type of drawing.
  • the combination with the method according to the invention makes this stretching method possible for all types of material.
  • the method according to claim 13 is particularly characterized in that the thread forms a precisely localized stretching point in the stretching zone and is completely stretchable despite the low thread tension. In order to form a precisely fixed stretching point, the method according to claim 14 must be further developed.
  • the inventive device according to claim 19 is characterized in that the heating surface is very short despite the high yarn speeds, in particular between 300 and 1000 mm. A good uniform heat management can be achieved in the embodiment according to claim 20.
  • the tube can be slotted for threading.
  • the embodiment according to claim 21 allows simple operation, but in particular also the selection of the distance with which the Thread is led to the heating surface.
  • this distance can be specified by the thread guide as a function of the thread material, the titer, the number of filaments, the thread speed and the set temperature of the heating surface.
  • the embodiment according to claim 21 allows, in addition to a smooth thread running, in particular a stepped temperature control adapted to the method.
  • the first stage is regulated, for example, in the temperature range between 450 and 550 ° C and the second stage in the temperature range between 400 and 500 ° C.
  • temperatures are correspondingly lower, preferably around 100 ° C to 200 ° C.
  • the narrow zone in the stretching zone works with a narrow tube, into which the thread coming from the spinneret is fed without the interposition of a godet.
  • This machine-technically simple solution is only possible with this invention for all materials.
  • no special measures are required here in order to reduce the tendency of the thread to shrink even in the drawing zone.
  • This provides additional adjustment options for the draw zone in order to modify the other thread properties, in particular tensile strength and extensibility.
  • highly oriented or fully oriented threads can be spun in a continuous process.
  • shrink treatment ie the Reduce or eliminate the tendency to cold shrink to a harmless level without impairing the tendency to warm shrink, ie cooking shrinkage or hot air shrinkage.
  • the tendency to heat shrink should not be adjusted to the requirements of winding, but to the requirements of the subsequent process steps. For example, with a sewing thread you want to have a certain tendency to shrink so that the seam can adapt to the shrinkage of the fabric. With a hosiery yarn, the leg shape is achieved by pulling the raw stocking onto a fit that it adapts to by heat treatment and shrinking. In other fabrics, the tightness is increased by shrinkage, e.g. B. in cord fabrics. In all these cases, according to this invention, the requirement of the shrink-free winding has no disruptive influence on the warm shrinking tendency to be achieved.
  • FIGS. 1 and 3 Unless otherwise stated, the following description applies to FIGS. 1 and 3.
  • a thread 1 is spun from a thermoplastic material.
  • the thermoplastic material is fed to the extruder 3 through a filling device 2.
  • the extruder 3 is driven by a motor 4.
  • the motor 4 is controlled by a motor controller 49.
  • the thermoplastic material is melted in the extruder 3.
  • the deformation work (shear energy) introduced into the material by the extruder 3 serves for this purpose.
  • a heater e.g. B. provided in the form of a resistance heater 5, which is controlled by a heating control 50.
  • a pressure sensor 7 is provided for measuring the melt pressure for pressure-speed control of the extruder 3, the melt reaches a gear pump 9 which is driven by pump motor 44.
  • the pump motor 44 is controlled by the pump controller 45 in such a way that the pump speed can be set sensitively.
  • the pump 9 conveys the melt flow to the heated spin box 10, on the underside of which the spinneret 11 is located.
  • the melt emerges from the spinneret 11 in the form of fine filament strands 12.
  • the filament strands pass through a cooling shaft.
  • an air flow 51 is directed transversely or radially onto the filament sheet 12 by blowing. This cools the filaments.
  • the filament sheet is combined into a thread 1.
  • the thread is withdrawn from the cooling shaft 15 and from the spinneret 11 through a take-off godet 54.
  • the thread wraps around the take-off godet 54 several times.
  • an overflow roller 55 is arranged which is crossed over to the godet 54.
  • the overflow roller 55 is freely rotatable.
  • the godet 54 is driven by a godet motor at a preset speed. This withdrawal speed is many times higher than the natural exit speed of the filaments 12 from the spinneret.
  • the stretching is supported by the heating tube 20.
  • the heating tube 20 has a length of z. B. 1,150 m.
  • the godet 54 is followed by a second godet 16 with an overflow roller 17 before the thread 1 is wound up in a winder 30 to form a bobbin 33.
  • the heating device 8 is an elongated rail, to which the thread is guided at a short distance. This heating rail is divided into several stages, two are shown, which can be heated independently of one another. Details will be discussed later.
  • the thread 1 passes from the take-off godet 16 in FIG. 1 or FIG. 3 to the so-called “head thread guide” 25 and from there into the traversing triangle 26.
  • the traversing device is not shown in FIG. 1. These are wings rotating in opposite directions, which guide the thread 1 back and forth over the length of the bobbin 33.
  • the thread wraps around a contact roller (not shown) behind the traversing device.
  • the contact roller lies on the surface of the coil 33. It is used to measure the surface speed of the coil 33.
  • the coil 33 is formed on a sleeve 35.
  • the sleeve 35 is clamped on a winding spindle 34.
  • the winding spindle 34 is driven by the spindle motor and spindle control in such a way that the surface speed of the coil 33 remains constant. For this purpose, the speed of the freely rotatable contact roller is scanned as a controlled variable.
  • the traversing device can also be a conventional reversing thread roller with a traversing thread guide which is guided back and forth in the reversing thread groove over the traversing area.
  • the polypropylene thread is spun with a filament titer of 0.7 to 3 dtex and is drawn off from the spinneret 11 by godet 54 and at a speed higher than 3,500 and 4,500 m / min and thereby heated in a shock-like manner in the heating device 8 .
  • the godet 16 has a circumferential speed which is not higher than that of the godet 54. So there is no stretching but a relaxation treatment.
  • the heating device 8 is operated at very high temperatures, which are above the melting temperature, that is to say essentially above 220 ° C.
  • the first heating zone 27 of the heating rail was heated to 330 ° C. and the second heating zone 28 to 150 ° C.
  • a sufficient relaxation treatment could be achieved in this way between the godets 16 and 54 continued in the take-up zone.
  • the temperatures of the first heating zone 27 are preferably somewhat higher than those of the second heating zone 28, preferably between 250 and 550 ° C.
  • the temperature of the second heating zone 28 is preferably between 150 and 450 ° C.
  • the thread tension between the godets 54 and 16 could be set to less than 0.1 cN / dtex taking into account the speed difference and the shrinkage forces. This area is particularly advantageous for triggering the cold shrink tendency or for its elimination. Due to the temperature control, in particular in the second heating zone 28, the warm shrinkage tendency could also be influenced in a targeted manner without the cold shrinkage tendency which is harmful to the winding being thereby adversely affected.
  • a further godet 21 with overflow rollers 22 can be arranged in front of the godet 54.
  • post-stretching takes place between these godets 21 and 54.
  • the speed of the godet 54 is set higher than the speed of the godet 21.
  • a tensile force is applied which leads to further plastic deformation of the thread bundle 1.
  • a further heat treatment preferably also takes place between these godets.
  • a heating device 24 is shown in FIG. 3. It has a heating surface 29 which faces the thread 1.
  • the thread 1 is guided along this heating surface 29 without contact, but in close proximity with a distance of 0.5 to 5 mm.
  • the surface temperature is set higher than the melting temperature of the polymer concerned.
  • This post-stretching and the boil-like heating provided therein can influence the crystal structure in the sense of a higher long-term stability of the thread. This increases the effectiveness of the subsequent treatment between the godets 54 and 16 and the coil shrinkage and the tendency to coil shrinkage are further reduced.
  • the method shown in FIG. 3 corresponds to that in FIG. 1.
  • the method according to FIG. 1 or FIG. 3 soft as well as particularly shrink-sensitive hard coils could subsequently be wound, which showed no harmful coil shrinkage with damage or destruction of the coil even in the long-term behavior.
  • Both processes are carried out in that the thread is drawn off the spinneret 11 at a very high speed of more than 3,500 m / min by means of the godet 54 in the case of FIG. 1 and by means of godet 21 in the case of FIG.
  • the post-stretching can again be 10 to 30%.
  • FIG. 3 can also be produced in a method according to FIG. 1 by replacing the heating tube 20 - as shown in FIG. 4 - by an elongated surface along which the thread without substantial contact is carried out, the surface temperature - as indicated for Figure 3 - is above the melting temperature of the polymer.
  • the required stretching force is not applied to the guide body or thread guide 132 by air friction, as is the case with the heating tube 20, but by thread friction.
  • FIG. 4 it is shown in FIG. 4 that the thread loops around a plurality (two are shown) of thread guides 132 arranged one behind the other when entering the drawing zone, so that the stretching point of the thread is localized due to the heating.
  • the heat treatment between the godet 16 and the winding 30 is carried out in the process variant according to FIG. 4. Since the thread can be guided in the shrinkage treatment zone with a very low thread tension, the setting is possible that the thread tension is also suitable as a winding tension. 4 corresponds to that in FIGS. 1 and 3, reference is made in this respect to the description there.
  • the thread 1 is drawn off the spinneret 11 directly without a godet by means of the winding 30.
  • the take-off speed is above 5,000 m / min, preferably between 6,000 and 7,500 m / min.
  • the thread 1 is stretched simultaneously with the spinning.
  • the heat treatment takes place by means of the heating device 8, which is arranged immediately before the winding 30 at a point on the thread 1 at which the thread has already cooled.
  • the threads which are very susceptible to shrinkage due to the spinning and stretching process, can be wound up without difficulty.
  • FIG. 6 shows a modification of the method which does not differ from the method according to FIG. 4 with regard to the heat-shrinking treatment and is therefore referred to the description of FIG. 4.
  • godets with overflow rollers can be replaced by two or more driven rollers arranged one behind the other, some of which the thread in the s sense and / or. z sense, i.e. wrapped in successive opposite directions.
  • the molecular structure of the highly pre-oriented polypropylene thread also recovers in such a way that the residual shrinkage of the thread is reduced significantly.
  • the shrink-free treatment ie the elimination of the tendency to shrink, simultaneously reduces the tendency to cold and shrink to warm. This applies in particular to the steam treatment processes according to the prior art.
  • the invention i.e. a relaxation zone with shock-like heating of the thread, only the tendency to cold shrink can be selectively eliminated and preferably the tendency towards warm shrinkage can be specifically influenced.
  • the godet 54 is not heated and that the godet 16 does not necessarily have to be heated. In contrast to conventional processes, in which all godets for pulling, stretching and relaxing the polypropylene thread are heated.
  • one of the two godets 54 or 16 also e.g. can be heated at approx. 100 ° C in order to specifically reduce the tendency to heat shrink.
  • the process according to the invention can be used successfully with the customary polymers, in particular polyethylene terephthalate, polytrimethylene terephthalate, polypropylene and polyamide (preferably PA6 or PA6.6, but also PA blends of different PA types).
  • polyethylene terephthalate polytrimethylene terephthalate
  • polypropylene polyamide
  • Very good results are achieved with polypropylene with a narrow molecular weight distribution in the range of less than 3, in particular based on metallocene.
  • spinning i.e. Spinning and stretching in a single operation and in the same zone, as shown in FIG. 1, are made possible, in particular using a heating tube.
  • a favorable effect can also be achieved by subjecting the thread to an additional steam treatment.
  • a superheated steam nozzle 23 is provided directly at the entrance of the heating device 8, through which superheated steam is blown onto the thread.
  • This superheated steam condenses on the previously cold thread and then evaporates. The corresponding amount of heat is fed to the thread during the condensation.
  • the subsequent evaporation prevents the thread from heating up very suddenly.
  • This gentle treatment of the thread could be advantageous and in any case leads to a reduction in the heat shrinkage.
  • the heat shrink can be adjusted with this treatment. Nevertheless, the subsequent shock-like heat treatment at high temperature leads to a reduction in cold shrinkage.
  • the effect according to the invention - as far as can be seen so far - does not depend on the use of the superheated steam nozzle.
  • the heating device 8 shown in FIGS. 2a to 2c consists of a rail 114 provided with two longitudinal grooves 112 made of a material which is heat-resistant and scale-resistant and can withstand temperatures in the range above 450 ° C. over longer periods of time without any noteworthy changes.
  • the rail 114 consists of a substantially flat lower part 116, which represents the heating surface 117.
  • Three walls 118, 120, 122 are connected to the lower part, between which the longitudinal grooves 112 lie.
  • the lower part 116 can also be provided with two or more than three upstanding walls, between which there are correspondingly fewer or more grooves.
  • the outer walls 118 and 120 can be connected to the lower part 116, for example by screwing.
  • a heating element 124, 126 preferably in the form of a rod-shaped electrical resistor, which extends over the entire length of the rail 114 or can also be divided into several sections in terms of length in order to provide targeted heating To enable heating profiles.
  • the heating elements 124, 126 are provided with plug contacts, not shown, for connection to a power source.
  • the central wall 120 located between the outer walls 118, 122 and protruding vertically from the lower part 116 either consists of one piece with it or, like the outer walls 118, 120, is connected to the lower part 116.
  • the rail 114 can consist of an extruded profile of similar cross-section, in which the lower part 116 and walls 118, 120, 122 are formed in one piece and which is provided in a known manner with recesses, bores, flexible flaps or the like for accommodating heating elements .
  • the rails 118, 120, 122 there are recesses or bores 128 of substantially the same depth from one another at regular intervals A, namely the recesses 128 located in the central wall 122 with respect to the recesses 128 in the side walls 118 and 220 by a distance A offset.
  • the recesses have a circular cylindrical shape.
  • the recesses 128 are cut secantially from the longitudinal grooves 112, so that the walls 118, 120, 122 have a slot 133 on the longitudinal grooves 112, i. H. have a rectangular opening.
  • the recesses are perpendicular to the base of the groove and correspond in depth to the height of the walls 118, 120, 122 receiving them. In certain circumstances, it may be advantageous to incline the recesses.
  • each of the recesses 128 there is a thread guide 132, the cross-sectional shape of which corresponds to the cross-section of the recess in terms of size and shape and which, in order to adhere to narrow tolerances, is firmly but with play against the recess wall.
  • the distance between the wall of the bores and the lateral surface of the thread guides, which can be seen from the drawing, is exaggerated only for reasons of clarity.
  • each thread guide 132 protrudes into the longitudinal grooves 112 in such a way that thread guides 132 arranged successively on opposite sides of the grooves 112 over a parallel extent by a certain amount, for example 0.1 to 1 mm join the central plane running to the walls 118, 120, 122. Otherwise, the width of the slots 133 is in each case smaller than the largest cross-sectional dimension, ie: the diameter of the thread guides 132, so that they cannot slide out of the recesses 128.
  • both the recesses 128 and the thread guides 132 are of circular cylindrical cross section. Other angular and rounded shapes, such as ellipses, rhombuses, triangles, etc. are conceivable.
  • the embodiment has a correspondingly tight fit between recesses 128 and thread guides 132. Therefore, separate fastening means for securing the thread guides 132 against axial and radial displacements are unnecessary, which avoids a special effort that would result from the use of fastening means .
  • the embodiment of FIG. 2 can also have game or transition fits. On the one hand, these fits are tight enough so that the thread guides lie immovably in their recesses.
  • Sheet metal caps 152 are used for holding in the axial direction.
  • the side walls 118, 120, 122 have retaining grooves 154 on their upper edge or a head 156 which is wider than the respective wall.
  • the sheet metal caps 152 have a cup-shaped profile in cross section, so that they protrude into the holding grooves 154 in the case of the central wall 120 or encompass the wall head 156 in the case of the side walls 118, 120.
  • the sheet metal caps are designed as elongated profiles, the length of which corresponds to the length of the heating rail. The thickness of the wall heads 156 or the position of the holding grooves 154 and the corresponding dimensioning of the sheet metal caps is such that the sheet metal caps fix the thread guides in the axial direction.
  • the thread guides consist of the usual materials such as silicon, titanium, or aluminum oxides or of nitrided or hard-chromed steel, or the like.
  • the thread guides 132 are preferably beveled conically at their ends facing away from the lower part 116, as shown at 134.
  • the thread guides 132 placed one behind the other in opposite walls 118 and 120, or 120 and 122 each form a V-shaped groove 136 in the cross-sectional direction of the heating device 8, which enables a thread 138 to be stretched without special auxiliary measures or measures between the two to guide successive thread guides 132 in a movement substantially perpendicular with respect to the heating surface 112 and the lower part 116 between the thread guides 132.
  • the thread 132 resting on the contact surfaces then forms a zigzag thread path.
  • the heating device 8 can consist of two rail sections 114a and 114b one behind the other in the thread running direction. These are of different lengths, but otherwise have the same cross-sectional shape.
  • the purpose of such a two-part arrangement can be to heat the heating device 8 differently in different length ranges in order to treat the thread 138 with a heat profile that meets its properties. This means that more than the two sections shown can also be used. It is particularly important that the angle that the two heating rails form each other, is set identically at each processing point of the spinning / stretching machine, so that threads of the same quality are produced on all processing points.
  • a fastening rail 158 is used to fasten the two heating rails. This is a rail that has the length of the two heating rails.
  • the mounting rail has a U-shaped cross section.
  • the heating rails are fastened to the base of the fastening rail with spacers 160.
  • the dimensioning of the spacers and their position relative to the heating rail determines the inclination of the heating rail with respect to the straight mounting rail 158.
  • the two heating rails have opposite inclinations and form an obtuse angle with each other.
  • the fastening rail 158 therefore serves on the one hand for the exact fastening of the two heating rails. Since the fastening rail 158 has a U-shaped profile, it also encompasses the two heating rails. Therefore, the mounting rail 158 also serves to equalize the temperature over the length and width of the heating rails.
  • the mounting rail is surrounded with insulation.
  • rod-shaped spacers 140 can be provided which bridge the longitudinal groove 112 on the groove base, ie the heating surface 117, and fix the thread course at a precise distance from the groove base.
  • some or all of the thread guides 132 can be provided with a circumferential leading edge, e.g. B. a circumferential groove 142 (FIG. 2a), the height of which is coordinated with the height of the thread raceway predetermined by the guide bodies 140. In this way, the thread that is guided in the groove is guided through the side edges of the groove.
  • the circumferential grooves have the same depth over the circumference, that is to say they are formed concentrically with the thread guides 132.
  • the circumferential grooves with a depth that changes over the course of the circumference, e.g. B. in that the groove base is cut circular cylindrical but eccentric to the thread guides 132.
  • twisting the thread guides allows fine adjustment of the contact between thread 138 and thread guides 132 and the zigzag thread path.
  • the thread guides 132 could be twisted together and to the same extent, for example, via a linkage (not shown) connecting them.
  • the heating device is housed in an insulating box (not shown), in which it is in a heat-insulating material, e.g. Glass fibers, is embedded.
  • the insulating box can be provided with a flap, which makes it possible to open it in order to provide access to the heating device and to insert the thread.
  • the insulating box, with its parts overlying the heating device 110 serves to axially fix the thread guides 132 in the rail 114.
  • the insulating box is provided with slots which are aligned with the central plane and the bevels 134 of the thread guides 132 and make it possible for one to introduce treating thread 138 between the thread guides 132.
  • the slots are provided on their side walls with wear-resistant insulating plates.
  • the electrical contacts required for the heating elements 124, 126 may also be accommodated in the insulating box.
  • the contact surfaces with which the thread guides touch the thread have a relatively large diameter.
  • the zigzag line in which the thread is guided through the overlap U of the successive thread guides has a relatively small amplitude, with a relatively large distance A between two adjacent thread guides. It is thereby achieved that the wrap angle with which the thread wraps around the thread guides or the contact surfaces formed on them is also small in total.
  • the heating rail has two grooves on its side facing away from the longitudinal groove 112, which are essentially below the thread guide grooves 112. Heating elements 124 and 126 are inserted into these grooves.
  • the heating elements are clamped by a mounting plate 159, which extends over the entire length of the heating rail.
  • the fastening plate also has grooves which surround the heating elements 124, 126. The heating elements 124, 126 can be easily replaced by loosening the mounting plate 159.
  • the distance between the thread and the heating surface 117 is very small.
  • the distance is between 0.5 and 5 mm.
  • the upper value is preferably not more than 3.5 mm in order to achieve good heat transfer and an accurate, trouble-free temperature control.
  • the lower limit is 0.5 mm. This results in a shock-like heating at the correspondingly high temperature of the heating rail of more than 350 ° C.
  • the thread guides 132 can at least partially be omitted or removed if they have a negative influence. On the one hand, they contribute to a calming of the thread, but hardly to a heating of the thread due to running contact, and on the other hand, they have only a slight friction on the thread due to the low wrap.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
EP96102184A 1995-02-23 1996-02-14 Procédé pour le filage, l'étirage et le bobinage d'un fil synthétique Expired - Lifetime EP0731196B1 (fr)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
DE19506369A DE19506369A1 (de) 1994-02-28 1995-02-23 Verfahren und Vorrichtung zum Heizen eines synthetischen Fadens
DE19506369 1995-02-23
DE19526106 1995-07-18
DE19526106 1995-07-18
DE19530818 1995-08-23
DE19530818 1995-08-23
DE19542699 1995-11-16
DE19542699 1995-11-16

Publications (2)

Publication Number Publication Date
EP0731196A1 true EP0731196A1 (fr) 1996-09-11
EP0731196B1 EP0731196B1 (fr) 1999-05-06

Family

ID=27438064

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96102184A Expired - Lifetime EP0731196B1 (fr) 1995-02-23 1996-02-14 Procédé pour le filage, l'étirage et le bobinage d'un fil synthétique

Country Status (2)

Country Link
EP (1) EP0731196B1 (fr)
CN (1) CN1065006C (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010023081A1 (fr) * 2008-08-27 2010-03-04 Oerlikon Textile Gmbh & Co. Kg Procédé de filage par fusion, d'étirage et d'enroulement un fil multifilament et dispositif de mise en oeuvre de ce procédé
CN113043583A (zh) * 2021-03-12 2021-06-29 山洋自动化设备(苏州)有限公司 一种介入手术用导丝热收缩机
CN113481686A (zh) * 2021-07-28 2021-10-08 枝江锦河科技有限公司 一种口罩耳带纺织系统及其使用方法和一种口罩耳带
CN115182077A (zh) * 2022-07-28 2022-10-14 中国科学院苏州纳米技术与纳米仿生研究所 高稳定性碳纳米管纤维连续强化装置、系统及其应用
CN115354403A (zh) * 2022-02-25 2022-11-18 桐昆集团浙江恒通化纤有限公司 一种耐磨低收缩率涤纶牵伸丝的生产方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10213921B4 (de) * 2002-03-28 2006-10-12 Röhm Gmbh Verfahren zum Spinnen und Aufspulen von Polyester-Multifilament-Garnen unter Verwendung von Spinnadditiven sowie durch das Spinn-Verfahren erhältliche Polyester-Multifilament-Garne
JP5431460B2 (ja) * 2008-05-23 2014-03-05 エーリコン テクスティル ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフト マルチフィラメント糸を溶融紡糸し、延伸しかつ巻き上げる方法並びにこの方法を実施する装置
RU2019117747A (ru) * 2016-11-08 2020-12-10 Браскем С.А. Способ изготовления полипропиленовой нити, способ и система нагрева полипропиленовой нити, способ и система нагрева и вытяжки полипропиленовой нити, система вытяжки полипропиленовой нити и способ, и система охлаждения полипропиленовой нити

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4123492A (en) * 1975-05-22 1978-10-31 Monsanto Company Nylon 66 spinning process
EP0165625A2 (fr) * 1984-06-15 1985-12-27 Eugenio Calvete Capdevila Procédé perfectionné pour l'étirage de filaments synthétiques
DE4018200A1 (de) * 1989-06-14 1991-02-07 Barmag Barmer Maschf Verfahren zum heizen eines fadens
EP0539866A2 (fr) * 1991-10-26 1993-05-05 Barmag Ag Procédé pour tirer un fil synthétique continu
JPH05171533A (ja) * 1991-12-24 1993-07-09 Unitika Ltd 複合加工糸の製造方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1036415A (zh) * 1988-07-20 1989-10-18 中国纺织大学 聚酯纤维的一步法制造方法及装置
CN1039142C (zh) * 1993-06-15 1998-07-15 巴马格股份公司 人造丝加热器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4123492A (en) * 1975-05-22 1978-10-31 Monsanto Company Nylon 66 spinning process
EP0165625A2 (fr) * 1984-06-15 1985-12-27 Eugenio Calvete Capdevila Procédé perfectionné pour l'étirage de filaments synthétiques
DE4018200A1 (de) * 1989-06-14 1991-02-07 Barmag Barmer Maschf Verfahren zum heizen eines fadens
EP0539866A2 (fr) * 1991-10-26 1993-05-05 Barmag Ag Procédé pour tirer un fil synthétique continu
JPH05171533A (ja) * 1991-12-24 1993-07-09 Unitika Ltd 複合加工糸の製造方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 017, no. 589 (C - 1124) 27 October 1993 (1993-10-27) *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010023081A1 (fr) * 2008-08-27 2010-03-04 Oerlikon Textile Gmbh & Co. Kg Procédé de filage par fusion, d'étirage et d'enroulement un fil multifilament et dispositif de mise en oeuvre de ce procédé
CN102131965B (zh) * 2008-08-27 2012-09-05 欧瑞康纺织有限及两合公司 用于熔纺、拉伸和卷绕复丝的方法以及用于实施该方法的装置
CN113043583A (zh) * 2021-03-12 2021-06-29 山洋自动化设备(苏州)有限公司 一种介入手术用导丝热收缩机
CN113481686A (zh) * 2021-07-28 2021-10-08 枝江锦河科技有限公司 一种口罩耳带纺织系统及其使用方法和一种口罩耳带
CN115354403A (zh) * 2022-02-25 2022-11-18 桐昆集团浙江恒通化纤有限公司 一种耐磨低收缩率涤纶牵伸丝的生产方法
CN115354403B (zh) * 2022-02-25 2023-06-27 桐昆集团浙江恒通化纤有限公司 一种耐磨低收缩率涤纶牵伸丝的生产方法
CN115182077A (zh) * 2022-07-28 2022-10-14 中国科学院苏州纳米技术与纳米仿生研究所 高稳定性碳纳米管纤维连续强化装置、系统及其应用
CN115182077B (zh) * 2022-07-28 2024-05-24 中国科学院苏州纳米技术与纳米仿生研究所 高稳定性碳纳米管纤维连续强化装置、系统及其应用

Also Published As

Publication number Publication date
EP0731196B1 (fr) 1999-05-06
CN1065006C (zh) 2001-04-25
CN1138111A (zh) 1996-12-18

Similar Documents

Publication Publication Date Title
EP1527217B1 (fr) Dispositif de filage et d'enroulement
EP0754790B1 (fr) Procédé et dispositif pour le chauffage d'un fil synthétique
DE19535143B4 (de) Vorrichtung und Verfahren zur thermischen Behandlung von Fasern
EP2007935B1 (fr) Procede et dispositif d'extraction et d'etirage d'un fil multifilament
DE69323294T2 (de) Verfahren und apparat zum herstellen von polyesterfasern
EP1594785B1 (fr) Dispositif pour fabriquer et enrouler des fils synthetiques
EP0845550A1 (fr) Procédé et dispositif pour filer et enrouler un fil
EP0726338A2 (fr) Procédé de fabrication d'un fil multifilament
DE68927805T2 (de) Vorrichtung und verfahren zum inkrementweise strecken von fasern
EP1583855B1 (fr) Procede et dispositif pour filer et onduler un fil synthetique
EP0731196B1 (fr) Procédé pour le filage, l'étirage et le bobinage d'un fil synthétique
DE19506369A1 (de) Verfahren und Vorrichtung zum Heizen eines synthetischen Fadens
EP1501968B1 (fr) Machine de texturation
EP0826802B1 (fr) Procédé et dispositif de filature des fils multifilaments
EP2358932B1 (fr) Dispositif pour texturer et enrouler plusieurs fils
DE2501265A1 (de) Verfahren zur herstellung von texturiertem, synthetischem fadengarn
DE3534079C2 (de) Verfahren zum Herstellen von Glattgarn
DE4018200C2 (de) Verfahren und Vorrichtung zum Heizen eines Fadens in der Falschzwirnzone einer Falschzwirntexturiermaschine
DE1950743C3 (de) Verfahren, dessen Anwendung und Vorrichtung zum mehrstufigen Verstrecken von thermoplastischen FiIamentgarnen
DE2328639B2 (de) Verfahren zur Herstellung monoaxial verstreckter Folienbändchen aus Polypropylen
DE102015016800A1 (de) Verfahren zum Schmelzspinnen, Abziehen, Verstrecken, Relaxieren und Aufwickeln eines synthetischen Fadens für technische Anwendungszwecke und eine zugehörige Vorrichtung
DE19649809A1 (de) Verfahren zum Spinnen, Verstrecken und Aufspulen eines synthetischen Fadens
DE69510955T2 (de) Verfahren zum strecktexturieren durch falschzwirnen und ofen zur anwendung dieses verfahrens
DE4203076C2 (de) Spinnverfahren mit Hochgeschwindigkeitsaufwicklung
DE3719050C2 (fr)

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: A1

Designated state(s): CH DE FR GB IT LI

17P Request for examination filed

Effective date: 19961008

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

17Q First examination report despatched

Effective date: 19980730

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE FR GB IT LI

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: BARMAG GMBH ENGINEERING AND MANUFACTURING

Ref country code: CH

Ref legal event code: EP

ITF It: translation for a ep patent filed
REF Corresponds to:

Ref document number: 59601798

Country of ref document: DE

Date of ref document: 19990610

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19990706

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
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20040128

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20040219

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050214

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20050221

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20050225

Year of fee payment: 10

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20050214

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051031

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20051031

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: 20060228

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060228

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20060228

Year of fee payment: 11

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: 20060901

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: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070214