EP2079861B1 - Procédé et dispositif de traitement d'un câble de fibres - Google Patents

Procédé et dispositif de traitement d'un câble de fibres Download PDF

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Publication number
EP2079861B1
EP2079861B1 EP07821280A EP07821280A EP2079861B1 EP 2079861 B1 EP2079861 B1 EP 2079861B1 EP 07821280 A EP07821280 A EP 07821280A EP 07821280 A EP07821280 A EP 07821280A EP 2079861 B1 EP2079861 B1 EP 2079861B1
Authority
EP
European Patent Office
Prior art keywords
fiber cable
draw
rollers
roller
fluid
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.)
Not-in-force
Application number
EP07821280A
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German (de)
English (en)
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EP2079861A2 (fr
Inventor
Horst Kropat
Bernhard Schoennagel
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 Textile GmbH and Co KG
Original Assignee
Oerlikon Textile GmbH and Co KG
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Publication of EP2079861A2 publication Critical patent/EP2079861A2/fr
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Publication of EP2079861B1 publication Critical patent/EP2079861B1/fr
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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
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/12—Stretch-spinning methods
    • D01D5/16—Stretch-spinning methods using rollers, or like mechanical devices, e.g. snubbing pins
    • 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
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G1/00—Severing continuous filaments or long fibres, e.g. stapling
    • 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
    • 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

Definitions

  • the invention relates to a method for treating a fiber cable for the production of synthetic staple fibers according to the preamble of claim 1 and to an apparatus for carrying out the method according to the preamble of claim 9.
  • a generic method and a generic device are from the US 6,203,743 known.
  • the fiber cable formed from a plurality of synthetic filament strands is first led by a humidifying device in the form of a dip bath after deduction of a Kannengatter to obtain a uniform wetting of all fiber strands and thus a secure cohesion of the individual fibers during the treatment .
  • a spin finish is preferably used which allows a safe running of the fiber cable over the treatment facilities of the fiber line.
  • the fluid within the fiber cable leads to a substantially good and uniform heat transfer and a mobility of the filament strands with each other during the drawing process. Only with a sufficient moisture content can the fiber cable be produced with high draws. Thus, the wet fiber tow is then stretched in a draw zone between two stretch rolling mills.
  • the stretched fiber cable is passed over a plurality of heated calender rolls for fixing and drying.
  • the fiber cable is fed to a squeezing device immediately before entry into the fixing device, in which the fiber cable is passed through a nip formed by steel rollers. In this way, the fluid can be led out of the fiber cable in large quantities before the fiber cable is treated on the calender rollers becomes. After drying and fixing of the fiber cable cooling and crimping of the fibers takes place in order to then cut them into staple fibers.
  • Another object of the invention is to reduce the fluid in the fiber tow so that a uniform width distribution of residual fluid in the fiber tow predominates.
  • the invention takes a completely new approach, which was previously regarded in the art as not feasible because the prevailing opinion was that a squeezing of the fiber cable would lead to a high degree within a draw zone to damage the fibers.
  • a squeezing of the fiber cable would lead to a high degree within a draw zone to damage the fibers.
  • a high degree of fluid from the fiber cable could be removed already within the draw zone.
  • the squeezing of the fiber cable within the draw zone was carried out over the entire width of the fiber cable such that sets over the treatment width of the fiber cable, a uniformly distributed weight fraction of ⁇ 10% of the fluid in the fiber cable.
  • the device according to the invention has bending-resistant squeezing means which squeeze the fiber cable uniformly over the entire width and at substantially predefined pressure for squeezing out the fluid.
  • the actual stretching process of the fiber cable remains unaffected thereby, so that the liquid content required for the stretching in the fiber cable can have a correspondingly high proportion by weight in the range of> 20%.
  • a particular advantage of the invention is that the fiber cable can be fed to the squeezing device in a region with relatively low running speeds. In that regard, vibrations and irregularities can be avoided.
  • a secure guidance of the fiber strands is ensured by the squeezing means without any entrainment of individual fibers.
  • the low speeds also increase the exposure time when squeezing the fiber cable, so that the fluid can be led out of the fiber cable in large quantities.
  • the development of the invention is preferably used in which the fiber tow is squeezed in the lead-in area of a drafting mill bounding the draft zone, wherein the fiber tow is heated within the draw zone by a heated fluid to a draw temperature to induce a draw point in the fibrous material.
  • the fiber cable is preferably passed through a steaming channel with hot steam or through a temperature-controlled drawing bath.
  • the squeezing device is arranged in the inlet of the second drafting roller mill, so that the filament strands entering the squeezing device already have their essential stretching.
  • the fiber cable has proven particularly useful when the squeeze means are formed by steel rollers having a nip between them.
  • the steel rollers are held against each other with a line load in the range of 30 N / mm to 100 N / mm. This ensures that even with large quantities of liquid within the fiber cable, a weight fraction of ⁇ 10% fluid is established.
  • the fiber cable in the nip is compressed to at least 70% of its original cable thickness. This makes it possible, in particular for the drawing process, to have a high fluid content, which may be in the region of above 40%.
  • the fiber cable is squeezed during emergence on a first draw roll of the second draw roll mill by a voltage applied to the draw roll pressure roller.
  • the predetermined for stretching threadline of the fiber cable can be maintained.
  • the facilities of the squeezer are reduced to a minimum, since a separate drive for driving the steel rollers is not required. Due to the driven draw roller, the pressure roller can advantageously be driven solely by friction.
  • the fiber cable is squeezed in several stages in order to achieve the desired liquid content.
  • several positions are provided in the draw roll mill, in which the fiber cable is squeezed.
  • other drafting rollers can also be combined with a pressure roller. It would also be possible to integrate two separate steel rolls in the draw roll mill.
  • the development of the method according to the invention is preferably used, in which the fiber tow are heated by the heated draw rolls of the second draw roll mill after the squeezing of the fluid. Due to the low fluid content in the fiber tow, the energy provided by the draw rolls can be used directly to heat the fiber tow. Loss energy that would only be used to heat a fluid is kept to a minimum.
  • the fiber tow is guided after stretching over several calender rolls, whereby the energy required for drying the fiber tow can also be reduced to a minimum due to the low fluid content of the fiber tow.
  • the method according to the invention represents a particularly advantageous and safe treatment option for a fiber cable, in which considerable energy savings can be realized compared to conventional methods. For example, by squeezing the fiber cable, the energy for fixing the fiber cable can be reduced by 20% even before it enters the second drafting roller mill. Another particularly advantageous effect arises during the heat treatment for fixing the fiber cable. Due to the low fluid content in the fiber cable, higher fiber strengths are achieved which could be increased by 6 to 10% compared to conventional methods.
  • the squeezing means in the form of steel rollers can be integrated in a simple manner within the drafting zone.
  • the development of the device according to the invention has proved successful, in which one of the steel rolls is formed by a driven draw roll of the second draw roll mill and the second steel roll by a the roller of the extension roller associated pressure roller.
  • the pressure roller is preferably designed as a non-driven roller with one-sided or two-sided support.
  • the pressure roll is preferably formed with a deflection-compensated steel shell, so that the nip between the pressure roll and the draw roll over the entire width of the fiber cable is the same size.
  • the deflection-compensated steel shell of the pressure roller is designed such that the nip is present with a gap width variance of ⁇ 0.05 mm. This can be realized over the width of the fiber cable very uniform fluid fractions.
  • the squeezing force required to squeeze the fiber tow between the steel rolls is advantageously generated by an actuator device which produces at least one uniform line load across the width of the steel rolls in the range of 30 N / mm to 100 N / mm.
  • the device according to the invention can be carried out such that several roller pairs are provided in several successive positions.
  • the roller pairings may also be formed by a plurality of pressure rollers, which are each assigned to one of the drafting rollers of the second drafting roller unit.
  • the pressure roller or both steel rollers is formed with a hardened surface, which preferably has an orange surface structure. This avoids sticking and sticking of the fibers as the fiber strands exit the nip at the periphery of the rolls.
  • the fiber strands thus advantageously dissolve from the surface of the steel rollers, so that winder formations do not arise.
  • the method and apparatus of the invention are preferably used to treat polyester fiber tows prior to cutting into staple fibers in multiple stages.
  • the filament strands of the fiber cable are preferably withdrawn from provided pitchers, which were previously filled in a spinning process by melt spinning the filament strands.
  • the method is not limited to such two-stage processes for producing staple fibers. So there is also the possibility that the filament strands are produced in a one-step process.
  • the fiber cable is preferably passed after stretching over a plurality of heated calender rolls. Due to the relatively low moisture content in the fiber cable, an intensive heat treatment of the fiber material is possible, whereby substantially the energy required for drying the fiber material can be saved in the calender rolls.
  • the method and the device according to the invention are not limited to the polyester fiber material.
  • the fiber cable can also be advantageously prepared from other polymers such as polypropylene or polyamide.
  • Fi. 1 shows a first embodiment of the device according to the invention for carrying out the method according to the invention for treating a fiber cable for the production of staple fibers, shown schematically in a side view.
  • the device has a plurality of treatment devices, which are arranged one behind the other to a fiber line, wherein the running direction of the fiber cable by an arrow in Fig. 1 is marked.
  • a take-off device 2 is provided, to which a plurality of take-off rolls 20 are arranged to form a yarn path.
  • the synthetic filament strands are peeled off, for example, from a can gate with a plurality of cans.
  • Each of the cans contains a bundle-shaped filament strand which has a plurality of individual filaments and is laid as a tow at the end of a melt spinning process.
  • the moistening device is formed by an immersion bath 21, in which a fluid, preferably a spin finish, is contained, around the fiber cable 1 moisturize.
  • a fluid preferably a spin finish
  • the fiber cable 1 is drawn off from the moistening device 3 by a first draw roll mill 4 with a plurality of draw rolls 15 and guided into a draw zone.
  • the draw zone extends between the first draw roll mill 4 and a second draw roll mill 5.
  • the second draw roll mill 5 also has a plurality of draw rolls 16, which guide the fiber tow with partial wrapping.
  • the draw rolls 15 of the first draw roll mill 4 and the draw rolls 16 of the second draw roll mill 5 are driven at a speed difference to stretch the fiber tow 1.
  • a damping channel 6 is provided in which the fiber cable 1 is heated to a stretching temperature by means of a pressurized vapor.
  • the fiber cable 1 Before the fiber cable 1 enters the second draw roll train 5 within the draw zone, it becomes directly in the lead-in area of the second draw roll mill 5, the fiber cable 1 is treated by a squeezer 7 for reducing the fluid in the fiber cable 1.
  • the squeezing device 7 has as crimping means two rigid steel rollers 17.1 and 17.2, which form a nip between them.
  • a Kraftgeborchtung 32 acts on the steel rollers 17.1 and 17.2, so that prevails in the nip a compressive force for squeezing the fiber cable 1.
  • the squeezing device 7 has a sump 18, which is connected to a drain 19. Over this, the squeezed from the fiber cable 1 fluid is collected and continuously discharged.
  • the fiber cable 1 is supplied after stretching a heat treatment, which takes place through a steam chamber 8 and a subsequent fixing device 9.
  • the fixing device 9 has a plurality of calender rolls 22, which have a heated roll shell.
  • the fiber cable 1 is guided with partial looping on the circumference of the calender rolls 22.
  • the fiber cable 1 is fed to a cooling roll mill 10 having a plurality of cooling rolls 23.
  • the treatment width of the fiber cable 1 is first set to a crimp width by a fiber laying device 11.
  • the fiber laying device 11 has a plurality of laying rollers 24.
  • the crimping device 12 which follows the fiber laying device 11, in this embodiment has two crimping rollers 25, which cooperate with a stuffer box 26.
  • a pulling device 13 and a cutter 14 are provided to continuously cut the fibers of the fiber cable 1 into staple fibers having a predetermined fiber length.
  • Fig. 1 illustrated device for treating a fiber cable is exemplary in the construction and arrangement of the individual treatment facilities.
  • additional treatment devices can be arranged and added between the extraction device 2 and the cutting device 14.
  • the second draw roll mill could be followed by a third draw roll mill.
  • a drying device is provided between the crimping device 12 and the cutting device 14 in order to dry the crimped fibers of the fiber cable 1 in a final stage.
  • the fiber cable 1 is wetted with a fluid before being drawn.
  • a relatively high moisture content in the fiber cable is produced in order to obtain a cohesion of the fibers in addition to a secure guide on the rollers of the drafting system.
  • the fluid is suitable to obtain a good and uniform heat transfer in the heating of the fiber cable.
  • the preparation is particularly important in order to be able to carry out a delay of the individual fibers unhindered. Only with a correspondingly wet fiber cable can a maximum stretching be achieved.
  • the moisture content of the fiber cable may be in a range of 40 to 50% by weight of the fluid. With a treatment width of the fiber tow of over one meter, a relatively large amount of fluid is entrained in the fiber tow 1 during stretching.
  • the draw rolls 15 of the first draw roll mill 4 and the draw rolls 16 of the second draw roll mill 5 are preferably designed to be heated, so that the fiber tow is heated to a treatment temperature which is below the draw temperature.
  • the fiber cable 1 is heated in a damping channel 6 by a pressurized vapor medium.
  • the fiber cable 1 is heated to a stretching temperature of the fiber material, so that forms necessary for the stretching operation of the fibers draw point. Due to the speed difference set between the draw rolls 15 and 16 of the two draw roll mills 4 and 5, there is a delay, wherein the speed difference determine the respective degree of drawing.
  • the squeezer 7 is formed with two rigid steel rollers, which form a nip for squeezing the fiber cable.
  • the steel rollers 17.1 and 17.2 is associated with an energy generating device 32, so that the steel rollers 17.1 and 17.2 are pressed with a line load in the range of 30 N / m to 100 N / mm.
  • the relatively high consistency of the nip by the bending stiffness of the steel rollers ensures the uniform distribution of the liquid over the entire treatment width of the fiber cable.
  • the calender rolls are preferably adjusted to a surface temperature which is above 200 ° C. This physical properties are achieved, which are at a hot air shrinkage of ⁇ 6% and a fiber strength of> 6 cN / dtex.
  • Fig. 2 is a further embodiment of the device according to the invention for carrying out the method according to the invention shown schematically in a side view.
  • the embodiment according to Fig. 2 is essentially identical to the embodiment according to Fig. 1 , so that only the essential differences will be explained below and otherwise reference is made to the preceding description.
  • the treatment apparatuses 2 and 3 arranged upstream of the first drafting roller unit 4 and the treatment apparatuses 8, 9, 10, 11, 12, 13 and 14 arranged downstream of the second drafting roller unit 5 are identical to the preceding embodiment.
  • the fiber cable 1 is guided by the first drafting roller unit 4 for further temperature control in a drawing bath 27.
  • the drawing bath 27 contains a tempered fluid to heat the fiber material in the fiber tow 1 to a stretching temperature. Subsequently, the fiber cable 1 is withdrawn from the drawing bath 27 by the second draw roll train 5.
  • the squeezer 7 is provided, which is formed in this case by a pressure roller 28, which forms a nip for squeezing the fiber cable 1 with a first stretching roller 16 of the second drafting roller 5.
  • the first draw roll 16 in the draw roll train 5 and the adjacent pressure roller 28 is assigned a collecting trough 18 in the lower region of the draw roll mill 5, which has an outflow 19 is coupled. By means of this, the fluid pressed out of the fiber cable can be collected and removed continuously.
  • the pressure roller 28 has a steel jacket, which is preferably designed with a deflection compensation.
  • a deflection compensation preferably designed with a deflection compensation.
  • FIG. 3 and 4 an embodiment of such a squeezer 7 is shown in conjunction with a roll mill.
  • Fig. 3 Here is a schematic side view and in Fig. 4 schematically illustrated a cross-sectional view of the device. Unless an explicit reference is made to one of the figures, the following description applies to both figures.
  • the squeezing device 7 is formed by a pressure roller 28, which forms a nip 38 with a drafting roller 16.
  • the draw roller 16 is rotatably mounted on one side on a frame wall and coupled to a drive.
  • the pressure roller 28 is rotatably mounted at both ends with a roller shaft 29 on a roller carrier 30.
  • the roller carrier 30 is fork-shaped and connected to a machine frame 31 via a pivot axis 35.
  • At one of the pivot axis 35 opposite free end of the roller support 30 is coupled via a rotary joint 35 with an output device 32.
  • the power supply device 32 is formed in this case by a lifting cylinder 33 which is coupled via a piston rod 34 with the rotary joint 36.
  • About the lifting cylinder 33 of the roller support 30 is held with the freely rotatably mounted pressure roller 28 against the circumference of the draw roller 16.
  • a nip 38 between the draw roll 16 and the pressure roller 28th formed, which has a gap height.
  • Fig. 3 is the fiber cable with its cable thickness before crushing by a capital letter S w and designated after crushing with the capital letter S o .
  • the cable thickness S o is in the range of the cable thickness S w in the range ⁇ 0.7 S w .
  • a force is generated between the pressure roller 28 and the draw roll 16 by the power means 32, which holds the steel rolls against each other with a line load in the range of 30 N / mm to 100 N / mm.
  • both rollers 28 and 16 are formed with a steel jacket.
  • the pressure roller 28 is designed with a deflection-compensated steel jacket 37.
  • Fig. 4 an embodiment of such a deflection-compensated steel shell 37 is shown.
  • the nip 38 with a gap width variance of ⁇ 0.05 mm could be produced.
  • the maximum deviation of the gap height from a nominal value is referred to as the gap width variance.
  • the steel surface of the rollers is preferably carried out with an orange-like surface structure. Highly smooth and polished surfaces are thereby avoided, so that no intensive adhesion between the fibers and the steel surface of the rolls can arise.
  • the roll surfaces are preferably made hardened.
  • Fig. 5 is a further embodiment of a second draw roll mill with integrated squeezer shown, as for example in the embodiments of the fiber strand after Fig. 1 or Fig. 2 could be used.
  • a total of four drafting rollers 16 are arranged in a roller frame 39.
  • the draw rolls 16 are mounted on both sides and connected to a drive.
  • the arrangement of the drafting rollers 16 is chosen such that the fiber cable is guided on each of the rollers 16 with the highest possible looping of> 180 °.
  • the squeezing device 7 integrated within the drafting roller work 5 is likewise formed in this exemplary embodiment by a pressure roller 28, which is held by an energy-generating device 32.1 against the circumference of the first drafting roller 16 of the drafting roller work 5.
  • the pressure roller 28 could in this case according to the in Fig. 3 and 4 be shown embodiment.
  • a further pair of rolls of the squeezer 7 is provided between the middle draw rolls 16, which are formed by two steel rollers 17.1 and 17.2. In that regard, the squeezing of the fiber cable 1 to reduce the fluid takes place in two successive stages.
  • Both the steel rollers 17.1 and 17.2 and the pressure roller 28 each have a deflection-compensated steel jacket, so that on the one hand relatively small residual amounts of fluid are obtained after leaving the fiber cable 1 and on the other hand, a high uniformity of the residual fluid is achieved within the fiber cable.
  • the steel rollers 17.1 and 17.2 are each driven by a drive, not shown here.
  • the pressure roller 28 is operated as a non-driven auxiliary role.
  • the force for squeezing the fluid is generated by a further power generator unit 32.2.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Reinforced Plastic Materials (AREA)

Claims (20)

  1. Procédé de traitement d'un câble de fibres en vue de la production de fibres synthétiques discontinues, dans lequel le câble de fibres est formé de plusieurs mèches de filaments synthétiques,
    le câble de fibres est étiré dans un moins une zone d'étirage avant d'être découpé en fibres discontinues,
    le câble de fibres est traité à l'aide d'un fluide avant l'étirage, le câble de fibres subit un traitement thermique de fixation après l'étirage et
    la quantité de fluide que le câble de fibres contient avant le traitement thermique est réduite par écrasement du câble de fibres,
    caractérisé en ce que
    dans la zone d'étirage, le câble de fibres est écrasé en largeur que telle sorte qu'il s'établisse dans le câble de fibres une teneur pondérale en fluide uniformément < 10 % sur toute la largeur du câble de fibres.
  2. Procédé selon la revendication 1, caractérisé en ce que le câble de fibres est écrasé dans la partie d'entrée d'un ensemble de cylindres d'étirage adjacent à la zone d'étirage, le câble de fibres étant chauffé par un fluide chaud dans la zone d'étirage jusqu'à une température qui amène le matériau des fibres à son point d'étirage.
  3. Procédé selon les revendications 1 ou 2, caractérisé en ce que pour être écrasé, le câble de fibres est amené dans l'interstice formé entre des cylindres à enveloppe en acier, les cylindres en acier étant maintenus l'un contre l'autre sous une charge linéaire de 30 N/mm à 100 N/mm.
  4. Procédé selon la revendication 3, caractérisé en ce que dans l'interstice entre les cylindres, le câble de fibres est comprimé jusqu'à au moins 70 % de son épaisseur initiale.
  5. Procédé selon les revendications 3 ou 4, caractérisé en ce que lors de son arrivée sur un premier cylindre d'étirage, le câble de fibres est écrasé par un cylindre de poussée qui repose contre le cylindre d'étirage.
  6. Procédé selon l'une des revendications 3 à 5, caractérisé en ce que le câble de fibres est écrasé en plusieurs positions successives à l'intérieur de l'ensemble de cylindres d'étirage.
  7. Procédé selon l'une des revendications 1 à 6, caractérisé en ce qu'après l'enlèvement du fluide par écrasement, le câble de fibres est chauffé par les cylindres d'étirage chauffés du deuxième ensemble d'étirage.
  8. Procédé selon l'une des revendications 1 à 7, caractérisé en ce que pour subir son traitement thermique, le câble de fibres est passé sur plusieurs cylindres de calandrage.
  9. Installation en vue de la mise en oeuvre du procédé selon l'une des revendications 1 à 8, l'installation présentant plusieurs dispositifs de traitement (2, 3, 4, 5, 9),
    au moins une zone d'étirage étant formée entre un premier ensemble (4) de cylindres d'étirage et un deuxième ensemble (5) de cylindres d'étirage pour étirer le câble de fibres (1),
    au moins un dispositif d'humidification (3) étant prévu avant la zone d'étirage pour humidifier le câble de fibres (1) à l'aide d'un fluide,
    un dispositif de fixation (9) étant prévu en aval du deuxième ensemble (5) de cylindres d'étirage pour traiter thermiquement le câble de fibres (1) et un dispositif d'écrasement (7) étant prévu pour réduire la quantité de fluide présente dans le câble de fibres (1),
    caractérisé en ce que
    le dispositif d'écrasement (7) est disposé à l'intérieur de la zone d'étirage et présente des moyens d'écrasement (17.1, 17.2) dont la rigidité en flexion est telle qu'il s'établisse dans le câble de fibres une teneur pondérale en fluide uniformément < 10 % sur toute la largeur du câble de fibres (1).
  10. Installation selon la revendication 9, caractérisée en ce que le dispositif d'écrasement (7) est disposé à l'entrée du deuxième ensemble (5) de cylindres d'étirage et en ce qu'un bain d'étirage (27) ou un canal (6) à vapeur sont disposés à l'intérieur de la zone d'étirage en amont du deuxième ensemble (5) de cylindres d'étirage et chauffent par le fluide chaud le câble de fibres (1) présent à l'intérieur de la zone d'étirage jusqu'à une température qui amène le matériau des fibres à son point d'étirage.
  11. Installation selon l'une des revendications 9 ou 10, caractérisée en ce que les moyens d'écrasement du dispositif d'écrasement (7) sont formés par deux cylindres d'acier (17.1, 17.2) rigides en flexion qui forment entre eux un interstice de cylindres.
  12. Installation selon la revendication 11, caractérisée en ce que l'un des cylindres d'acier est formé d'un cylindre d'étirage (16) moteur du deuxième ensemble (5) de cylindres d'étirage et l'autre cylindre d'acier est formé d'un cylindre de poussée (28) associé à la périphérie du cylindre d'étirage.
  13. Installation selon la revendication 12, caractérisée en ce que le cylindre de poussée (28) est monté à rotation libre à une de ses extrémités frontales ou à ses deux extrémités frontales.
  14. Installation selon les revendications 12 ou 13, caractérisée en ce que le cylindre de poussée (28) présente une enveloppe (37) en acier à flexion compensée qui définit entre les cylindres un interstice dont la variance d'épaisseur est < 0,05 mm.
  15. Installation selon l'une des revendications 11 à 14, caractérisée en ce qu'un dispositif (32) d'application de force par lequel les cylindres d'acier (17.1, 17.2) sont maintenus l'un contre l'autre sous une charge linéaire de 30 N/mm à 100 N/mm est associé aux cylindres d'acier (17.1, 17.2).
  16. Installation selon l'une des revendications 11 à 15, caractérisée en ce qu'elle présente plusieurs paires de cylindres (28/16, 17.1/17.2) qui écrasent le câble de fibres (1) en plusieurs positions successives à l'intérieur de l'ensemble (5) de cylindres d'étirage.
  17. Installation selon la revendication 16, caractérisée en ce qu'elle présente plusieurs cylindres de poussée, chacun associé à l'un des cylindres d'étirage du deuxième ensemble de cylindres d'étirage.
  18. Installation selon l'une des revendications 11 à 17, caractérisée en ce que les cylindres d'acier (17.1, 17.2) présentent une surface durcie dotée d'une structuration en peau d'orange.
  19. Installation selon l'une des revendications 9 à 18, caractérisée en ce qu'au moins une partie du cylindre d'étirage (16) du deuxième ensemble (5) de cylindres d'étirage peut être chauffée.
  20. Installation selon l'une des revendications 9 à 19, caractérisée en ce que le dispositif de fixation (9) est formé de plusieurs cylindres de calandrage (22) chauffés.
EP07821280A 2006-10-21 2007-10-12 Procédé et dispositif de traitement d'un câble de fibres Not-in-force EP2079861B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006049784 2006-10-21
PCT/EP2007/060913 WO2008046794A2 (fr) 2006-10-21 2007-10-12 Procédé et dispositif de traitement d'un câble de fibres

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EP2079861A2 EP2079861A2 (fr) 2009-07-22
EP2079861B1 true EP2079861B1 (fr) 2012-12-05

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Application Number Title Priority Date Filing Date
EP07821280A Not-in-force EP2079861B1 (fr) 2006-10-21 2007-10-12 Procédé et dispositif de traitement d'un câble de fibres

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EP (1) EP2079861B1 (fr)
CN (1) CN101528992B (fr)
RU (1) RU2421554C2 (fr)
WO (1) WO2008046794A2 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014152445A1 (fr) 2013-03-15 2014-09-25 Shimano American Corporation Dispositif et procédé de production de ligne effilée à liquide chauffé
CN105603548B (zh) * 2016-03-04 2017-12-05 浙江竟成特种单丝有限公司 一种食用级输送专用特种单丝的热定型装置
CN113373534A (zh) * 2021-06-16 2021-09-10 福建闽瑞新合纤股份有限公司 一种皮芯型卫生材料的粘弹拉伸设备
CN114753014B (zh) * 2022-04-19 2023-08-15 泗县微腾知识产权运营有限公司 一种基于纺织面料生产用化学纤维抽丝设备
CN115710754B (zh) * 2022-08-27 2023-06-09 华祥（中国）高纤有限公司 一种用于生产涤纶丝的拉伸设备

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6203743B1 (en) * 1999-10-01 2001-03-20 Glen Patrick Reese Heat setting a tow of synthetic fibers using high pressure dewatering nip

Also Published As

Publication number Publication date
WO2008046794A2 (fr) 2008-04-24
EP2079861A2 (fr) 2009-07-22
CN101528992A (zh) 2009-09-09
WO2008046794A3 (fr) 2008-07-17
CN101528992B (zh) 2011-08-17
RU2009118827A (ru) 2010-11-27
RU2421554C2 (ru) 2011-06-20

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