EP3425092B1 - Dispositif et procédé pour etaler un faisceau de fibres - Google Patents

Dispositif et procédé pour etaler un faisceau de fibres Download PDF

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Publication number
EP3425092B1
EP3425092B1 EP17180086.5A EP17180086A EP3425092B1 EP 3425092 B1 EP3425092 B1 EP 3425092B1 EP 17180086 A EP17180086 A EP 17180086A EP 3425092 B1 EP3425092 B1 EP 3425092B1
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EP
European Patent Office
Prior art keywords
fiber bundle
spreading
fibre bundle
speed
sequences
Prior art date
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Active
Application number
EP17180086.5A
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German (de)
English (en)
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EP3425092A1 (fr
Inventor
Torsten BRECKNER
Martin ROSSNER
Peter Hartmann
Roland Schmidt
Stephan Fichtner
Rainer Seuss
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Karl Meyer Technische Textilien GmbH
Karl Mayer Technische Textilien GmbH
Original Assignee
Karl Meyer Technische Textilien GmbH
Karl Mayer Technische Textilien GmbH
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.)
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Publication date
Application filed by Karl Meyer Technische Textilien GmbH, Karl Mayer Technische Textilien GmbH filed Critical Karl Meyer Technische Textilien GmbH
Priority to EP17180086.5A priority Critical patent/EP3425092B1/fr
Priority to US16/026,555 priority patent/US10876224B2/en
Priority to JP2018128226A priority patent/JP7197293B2/ja
Priority to CN201810742133.4A priority patent/CN109208140B/zh
Publication of EP3425092A1 publication Critical patent/EP3425092A1/fr
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Publication of EP3425092B1 publication Critical patent/EP3425092B1/fr
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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
    • 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
    • D02J1/18—Separating or spreading
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D11/00—Other features of manufacture
    • D01D11/02—Opening bundles to space the threads or filaments from one another

Definitions

  • the invention relates to a device for spreading a fiber bundle and a related method.
  • the device has a so-called tension building unit, which consists of a series of statically arranged round bars, and a tension reduction unit, which consists of a series of driven rollers, the static rods and the driven rollers being arranged perpendicular to the direction of the fiber bundle passing through, which forms a wrap contact with the surface of the series of static bars and driven rollers.
  • the driven rollers are operated at a higher differential speed with respect to the speed of the running fiber bundle, whereby a spreading effect of the fiber bundle is achieved.
  • the fiber bundles first form a direct wrapping contact with the surface of the static rods in order to subsequently establish a direct wrapping contact with the row of driven rollers or rollers.
  • the driven rollers are operated at a peripheral surface speed which is at least three times the speed of the running fiber bundle. The tension of the fiber bundle is controlled via this speed difference.
  • Strand webs are textile materials in which the individual threads are distributed evenly in their transverse direction in a continuous thread web, namely the strand web.
  • This treatment of the continuous web corresponds to the actual spreading.
  • the strand path is moved forward under tension, which is small enough so that the threads do not break.
  • the strand tracks are guided over rollers and a plurality of grooved, combined and rotatably driven units in such a way that the strand track is separated by the webs located between the grooves and thus displaced in the transverse direction, smoothing the Strangbahn is carried out by guiding the strand path again after deflection via fixed rods with deflection.
  • the disadvantage of this method is that lane formation is not avoided in the case of spread strand webs, especially not if lower grammages are to be aimed for.
  • the tendency to form lanes is greater, the greater the spread and thus the lower the weight per unit area of the spread fiber bundle.
  • the known spreading device has a convexly curved spreading edge which impresses a directional component perpendicular to the longitudinal extension of the fiber filament bundle on the fiber filament bundle to be spread, which is guided over the spreading edge.
  • the fiber filament bundle can be placed under tension on the convexly curved spreading edge and can then be moved vertically away from the filament fiber bundle again with at least one directional component.
  • This known device is now characterized in that rotary shafts with convexly curved rods are combined in one device such that the convexly curved rods serving as wings engage in one another by the rotatably driven rotary shafts in such a way that fiber filament bundles introduced into the spreading device under tension between the edge regions changing clamping force can be clamped.
  • the changing tensioning force is intended to ensure that the filaments gradually shift in the width direction, so that when the spreader device leaves, a spread band is present.
  • the disadvantage of such devices is that low basis weights can hardly be achieved if alley formation is to be avoided.
  • EP 1 184 496 A2 describe a method and an apparatus for spreading continuous filaments.
  • the fibers combined as fiber bundles are transported through the spreading device by means of a plurality of rollers.
  • sliding contact of the fiber bundles is exerted on one side of the fiber bundle by sliding bodies.
  • the filaments which are initially arranged one above the other in the thickness direction are spread.
  • JP 2005 029912 A describes, among other things, a method for spreading a fiber bundle, in which the fiber bundle is passed through a roller system, in which fixed sliding rods press the fiber bundle to be spread into the spaces between support rollers or release the pressure, so that different wrap angles are generated on the support rollers.
  • the filaments initially combined as a bundle are spread.
  • rollers are moved up and down so that the tension in the filament bundles is varied.
  • EP 1 172 191 B1 a production device and a production method for open fiber bundles and a prepreg production method are known.
  • the spreading device has two rollers which are held in contact with a running fiber bundle, and a base body which moves back and forth in order to be brought into and out of contact with the running fiber bundle repeatedly and periodically.
  • the arrangement is now designed in such a way that the running fiber bundle between the rollers receives no pressure when it is not in contact with the rollers.
  • the peripheral surface speed of at least one of the rollers is kept lower than the running speed of the running fiber bundle.
  • the base body is pivoted back and forth with an oscillation frequency and a defined amplitude in such a way that the fiber bundle lies against the rollers.
  • the object of the present invention to provide an apparatus and a method for spreading a fiber bundle, by means of which a high quality and uniformity of the spread fiber bundle, with an extremely low basis weight to be achieved at the same time, and a high production speed can be achieved.
  • the device for spreading a fiber bundle generally has a fiber bundle supply, from which the fiber bundle to be spread is conveyed and can be fed to a fiber consumption via a resistor and at least one first pulse drive interacting with the resistor.
  • the fiber bundle supply is wound on a spool, from which after passing through the actual device for spreading, the then spread fiber bundle can be fed to a fiber consumption
  • the fiber consumption either represents a take-up roller which is broadly designed according to the spread or a direct, for example, segment-like deposit on a multi-axial scrim.
  • the fiber consumption is built up in such a way that it is able to exert a corresponding withdrawal tension on the finished spread fiber bundle.
  • an additional speed component in the conveying direction and an additional speed component counter to the conveying direction is then alternately impressed on the fiber bundle at predetermined frequencies by means of the pulse drive during spreading.
  • an additional speed component can only be impressed on the fiber bundle in predetermined sequences in the conveying direction of the fiber bundle or in predeterminable sequences only against the conveying direction of the fiber bundle during spreading.
  • the principle according to the invention is that for the purpose of effectively spreading fiber bundles of different materials in the direction of the direction of travel of the fiber bundle and / or against this direction of travel of the fiber bundle, a correspondingly directed speed component is impressed on the fiber bundle.
  • the speed which is additionally impressed on the spreading process in sequence or pulse-like manner preferably in the manner of a sinusoidal curve of the conveying speed or throughput speed, leads to the fiber bundle being subjected to a change between tension build-up and strain relief sequentially during the entire spreading process and the individual filaments of the fiber bundle thereby becoming lighter and can be spread more effectively.
  • the impressed speed components, which are impressed on the fiber bundle passing through the device in addition to the throughput speed are only so large that the filaments of the fiber bundle to be spread do not suffer any damage when spreading, that is to say do not take any significantly occurring damage.
  • the spreading device always works in the interaction of pulse drive and abutment or resistance.
  • the abutment it should be noted that, in its simplest form, it can consist of a single deflection rod, via which the fiber bundle can be deflected from the fiber bundle supply, which is preferably a driven coil, over a defined wrap angle and can then be fed to the actual pulse drive. Due to the effect of the impulse drive, a relatively large spread is realized on a single spreader bar after unwinding from the spool.
  • a major advantage of the device according to the invention is that all expandable materials including steel can be spread to very low basis weights with high quality and without any lanes.
  • Another significant advantage is that there can already be a very large spread between the fiber bundle supply and the first resistor if the fiber bundle supply is preferably already designed as an additional pulse drive. This means that degrees of expansion of 25 ° to 30 ° can be achieved on or after the first resistance, which corresponds to 8 to 10 times what can be achieved with known devices with normal spreading. This already shows the extremely great advantage of the device according to the invention, and this is also a major reason why very high degrees of spreading and thus very low basis weights can be achieved, which cannot even be achieved with devices according to the prior art.
  • the predeterminable sequences of the additional speed components can preferably be varied in terms of their frequencies and / or amplitudes by means of a control device for the pulse drive in order to achieve a predeterminable basis weight.
  • the control device depending on the material to be spread and the weight per unit area to be achieved, controls the pulse drives accordingly with regard to their frequencies and their amplitudes or with regard to their frequencies or their amplitudes. This results in an extremely high flexibility of the device with regard to the desired spreading result to be achieved of different materials of the fiber bundles to be spread.
  • the device has at least one spreader bar which is deflected transversely to the conveying direction of the fiber bundle and via which the fiber bundle can be guided with a defined wrap angle.
  • the defined wrap angle is formed in accordance with the transverse offset of the spreader bar to the conveyor plane spanned by the spread fiber bundle.
  • the resistor can preferably also be a blowing or suction device, can be designed as a clamping device of a mechanical or electromagnetic type or as an electromagnetic fiber bundle deflection device.
  • the resistance is exerted on the spread fiber bundle running through the spreading device in such a way that the individual filaments of the fiber bundle are forced to be arranged more and more next to one another, so that the fiber bundle withdrawn or transported from the fiber bundle supply is spread.
  • the fiber bundle supply is arranged on a spool that does not rotate freely and can be pulled off this.
  • the coil is arranged in the conveying direction of the fiber bundle before the resistance, after which the first pulse drive is arranged. This sequence ensures that the fiber bundle is drawn off against the braking effect of the coil via the resistance, so that a tension is always applied to the fiber bundle.
  • the throughput of the fiber bundle supply through the device according to the invention is additionally impressed by the pulse drive with a corresponding speed component, which is essentially impressed in the direction of the plane formed when the conveying bundle passes through the spreading device, namely in the direction of the passage of the fiber bundle or counter to the direction of the fiber bundle through the spreading device.
  • the non-freely rotating coil is preferably designed as a driven coil, which is in particular a coil which is pulsed in predeterminable sequences in the direction of rotation in the manner of a second pulse drive.
  • the predeterminable sequences of the speed components of this second pulse drive are out of phase with those of the first pulse drive.
  • a double impulse influence of the fiber bundle to be spread can thus be achieved, because the fiber bundle to be spread is acted upon with the additional speed components that can be alternately applied to the fiber bundle both before the resistance and after the resistance.
  • the spreading result can thus be further improved with regard to the accuracy and quality of the spreading, that is to say avoiding thread lanes after the spreading has taken place, and also with regard to achieving a very low weight per unit area.
  • the resistor is arranged after the first pulse drive.
  • the first pulse drive is provided for the spreading device.
  • the device is preferably designed such that the spread fiber bundle is received on a consumer downstream of the resistor and designed as a winder.
  • the device therefore basically consists of a fiber bundle supply, the first pulse drive, resistance and consumer, for example in the form a winder. It is preferably also possible and conceivable for the fiber bundle supply to be in the form of a driven spool as the first pulse drive.
  • the winder is driven at a constant winding speed.
  • the constant winding speed is intended to ensure that the fiber bundle is subjected to a tensile force during the spreading.
  • the tensile force can preferably be of such a magnitude that even in the case of an additional speed component directed against the direction of travel of the spread fiber bundle in the sense of a negative speed component, the resulting speed from the speed of passage of the fiber bundle and the additional speed component directed against the direction of travel is positive.
  • the additional speed component it is also possible for the additional speed component to have a size such that the resulting speed from the throughput speed of the fiber bundle and the additional speed component directed counter to the throughput direction is at least briefly zero.
  • the winder of the device is preferably designed to be driven in the manner of a second, additional pulse drive, the predefinable sequences of the speed components being out of phase with those of the first pulse drive.
  • the predeterminable sequences of the speed components which are imprinted on the fiber bundle as it passes through the device during the spreading process, so to speak walk the fiber bundle through, for example, a spool driven in predefinable sequences in the direction of rotation in the manner of a second impulse drive, as a result of which the individual filaments in their Endeavor to arrange themselves next to each other.
  • an additional, second pulse drive is arranged downstream of the resistor, which is not the winder, but which is nevertheless like the basic mode of operation of the pulse drives , namely Predeterminable sequences of the speed component are out of phase with those of the first pulse drive.
  • the control can now be carried out in such a way that either the first or the second additional pulse drive works as a pulse drive and, so to speak, the pulse drive sequences which do not prescribe the fiber bundle during spreading is neutralized.
  • Neutralizing means that the predeterminable sequences of the speed components are not impressed on the fiber bundle when the pulse drive is not effective, but rather the fiber bundle only passes through the pulse drive without such an effect.
  • the method for spreading a fiber bundle according to the invention at defined conveying speeds has a first step according to the invention, in which a pulsating speed component is impressed on the conveying speed of the fiber bundle during the spreading process.
  • this pulsating speed component is alternately directed in the direction of the conveying speed and against this direction or only in the conveying direction or only against the conveying direction of the fiber bundle during the spreading.
  • the pulsating speed component is impressed on the fiber bundle by means of a first pulse drive.
  • the pulsating speed component is impressed on the fiber bundle by means of the first and by means of a second pulse drive, the respective speed components being introduced into the fiber bundle by the first pulse drive and by the second pulse drive with a phase offset from one another.
  • the phase-shifted respective speed components of the first and of the second pulse drive serve, as it were, for the fiber bundle to be spread to pass through the sequences of the respective pulse drive that can be predetermined in the direction of rotation, such as a spool that can be driven in this way, in order to further improve the spreading result.
  • the production speed which is also referred to as line speed, is preferably 8 m / min, and the amplitude of the speed, which is added to or subtracted from the production speed, is preferably 3 m / min and is achieved with a preferred frequency of 2 Hz Imprinted production speed.
  • FIG. 1 A spreading system is shown which has at least two pulse drives and the upstream and downstream resistors interacting with them, the fiber bundle to be spread from a fiber bundle supply 2 via a resistor 3 through a first pulse drive 4.1 and again via a further resistor 3 and a second Pulse drive 4.2 and again via a resistor 3 a fiber consumption 5 in the manner of a winder 8 is supplied.
  • the fiber bundle 1 is pressed onto the fiber bundle supply 2, which is drawn off or removed in the manner of a spool that cannot be freely rotated, by means of a counterpressure roller 9.
  • a counter-pressure roller 9 is provided on the fiber consumption 5 or winder 8 in order to ensure a clean winding of the spread fiber bundle 1 there.
  • the counter-pressure roller 9 which cannot be freely rotated, is expedient or necessary for the targeted conveyance of the fiber bundle 1.
  • the control can be carried out in such a way that these combinations themselves represent an impulse drive.
  • the fiber bundle is fed from the fiber bundle supply 2 to the resistor 3 by means of the feed speed and from there in the first pulse drive 4.1. Due to the fact that an additional speed component is impressed in the direction of conveyance of the fiber bundle by the device or counter to it, the amount of the feed speed 10 can be changed and runs as the conveying speed 11 from the first pulse drive 4.1 via the resistor 3 to the second pulse drive 4.2.
  • the second pulse drive 4.2 likewise imprints an additional speed component in the conveying direction of the fiber bundle through the spreading device and / or against the conveying direction through the spreading device on the fiber bundle to be spread. From the second pulse drive 4.2, the fiber bundle 1 passes through a further resistor 3 to the fiber consumption 5 or winder 8. By means of the fiber consumption 5 or winder 8, the spread fiber bundle becomes production speed 12 wound on the fiber consumption 5 with simultaneous pressing by means of a counter pressure roller 9.
  • FIG 2 Another embodiment of the device according to the invention is shown.
  • a non-driven bobbin is used as the fiber bundle supply or thread supply 1, from which the fiber bundle material is drawn off and fed to a resistor 3 at the feed speed 10 provided by the bobbin.
  • the resistor is arranged in front of a pulse drive.
  • This pulse drive represents the first and only pulse drive in this embodiment. After the pulse drive 4.1, the fiber bundle spread by the action of the pulse drive 4.1 leaves with a conveying speed 11 emerging from the pulse drive 4.1, and then with the production speed 12 to a consumer, who does not specify here is to be fed.
  • Figure 3 shows a further embodiment in which a pulse drive 4.1 is provided, the additional speed component of which is impressed on the fiber bundle 1 passing through the pulse drive 4.1, a fiber bundle supply not being drawn, so that in this embodiment it remains open from where and in what form the fiber bundle 1 the first pulse drive 4.1 is supplied.
  • a feed can for example also be made of cardboard boxes in which the unspread fiber bundle is stored in loops in the form of a cable.
  • the fiber bundle is fed to the first pulse drive 4.1 at feed speed 10, which in this embodiment corresponds approximately to the conveying speed 11 at which the fiber bundle enters the first pulse drive 4.1.
  • the first pulse drive 4.1 an additional speed component is impressed on the fiber bundle in the direction of the conveying device of the fiber bundle by the device and / or counter to this conveying device, so that the fiber bundle is, so to speak, tumbled.
  • the already spread fiber bundle passes through a resistor 3 connected to a fiber bundle consumption 5, which is provided in the form of a winder.
  • a counterpressure roller 9 or pressure roller is provided on the winder at the winding point in order to ensure a uniform winding of the spread fiber bundle 1.
  • the winder is designed to be driven so that the interaction of pulse drive 4.1 and downstream resistor 3 is ensured via the tension in the fiber bundle 1 or in the spread band maintained by the driven winder 8.
  • the driven winder 8 can be operated on the one hand at a constant winding speed, that is, it always works at the conveying speed.
  • the winder 8 is designed as an additional pulse drive 4.2, wherein the winder 8 or additional pulse drive 4.2 and the first pulse drive, which is arranged in front of the resistor 3, must be controlled so that the impressed in the manner a sine function varying speed components of the additional, second pulse drive and the first pulse drive must be out of time, that is, out of phase with each other, this time offset must be different from 0 °, that is, in the range of 1 ° to 359 °.
  • FIG. 4 a further embodiment is shown, in which a first pulse drive 4.1 and a second pulse drive 4.2 are provided, between which a resistor 3 is arranged.
  • the first pulse drive 4.1 and the resistor 3 as well as the second pulse drive 4.2 interact with one another and effect the so-called flexing of the fiber bundle 1 when passing through the spreading device.
  • This simplified basic system of a device according to the invention consisting of two pulse drives 4.1 and 4.2 and a resistor 3 arranged between them, leaves open, from which fiber bundle supply the fiber bundle 1 is fed to the first pulse drive 4.1 at feed speed 10, and how the fiber bundle leaving the second pulse drive 4.2 at production speed 12 1 which fiber bundle consumption is supplied.
  • This arrangement according to this exemplary embodiment can basically be found again in the exemplary embodiment according to FIG Figure 1 , in which a driven coil is present as an additional pulse drive, as in the exemplary embodiment according to Figure 2 , in which a winder 8 is provided as an additional pulse drive.
  • rollers with elastic projections which only clamp the fiber bundle when the projections roll on one another, but which allow the filaments to slide through between the projections, so that a tension variation is permanently generated on the fiber bundle.
  • a pair of rollers is conceivable which does not impart a speed variation component exerted on the fiber bundle in rotation, but rather which imprints a fluctuating reciprocating movement component in the direction of the direction of travel of the fiber bundle on the fiber bundle.
  • a clamping transport chain can be used as a resistor, as can a wide-slot nozzle or a plurality acted upon by hydraulics or pneumatics or the like such wide slot nozzles as well as an electromagnetic formation for an alternately clamping and releasing the fiber bundle organ can be provided.
  • Figure 5 is a first pulse drive shown as a pair of rollers in side view Figure 5a ) and in plan view according to Figure 5b ).
  • the fiber bundle is entangled from the location of the spread in the pulse drive 4.1 or remain on the first organ on which the spreading takes place, namely a spreading rod, and are not passed on to the device. Rather, only the evenly spread fiber bundle is forwarded into the device, so that a uniform product and no irregularities in the density distribution of the filaments can be produced. These entanglements are also known as turner and must be avoided under all circumstances.
  • twists are mainly present in fiber tapes, which form the change of direction on the spools on the outer right and left edge and tend to tip during the unwinding process.
  • known spreading devices such rotors could not be excluded in the spreading process.
  • the turners In layers with a high basis weight, the turners only play a minor role because they are not so noticeable and can therefore be tolerated. With low basis weights, turner is a so-called knockout criterion. It is interesting that in the spreading device according to the invention the turners are pushed back until the first pulse drive, because ideally these are compensated for by turning with the opposite rotation.
  • a pulse drive can also be viewed or referred to as a squeeze roller. All in all, there are therefore new economic possibilities for creating fiber-reinforced components, since unidirectional layers or multi-axial layers with a very low basis weight can be used on the basis of the required strength.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Nonwoven Fabrics (AREA)

Claims (13)

  1. Ensemble pour étaler un faisceau (1) de fibres qui peut être amené depuis une réserve (2) de faisceau de fibres à un consommateur de fibres (5) par l'intermédiaire d'une résistance (3) et d'au moins un premier entraînement à impulsions (4.1) coopérant avec la résistance (3),
    caractérisé en ce qu'au moyen de l'entraînement à impulsions (4.1),
    une composante supplémentaire de vitesse dans la direction de transport et une composante supplémentaire de vitesse dans la direction opposée à la direction de transport peuvent être appliquées en alternance selon des séquences prédéterminées au faisceau (1) de fibres pendant l'étalement, ou
    une composante supplémentaire de vitesse peut être appliquée sur le faisceau (1) de fibres selon des séquences prédéterminées uniquement dans la direction de transport du faisceau (1) de fibres ou selon des séquences prédéterminées uniquement dans la direction opposée à la direction de transport du faisceau (1) de fibres pendant l'étalement.
  2. Ensemble selon la revendication 1, caractérisé en ce que les fréquences et/ou les amplitudes des séquences prédéterminées de composantes supplémentaires de vitesse peuvent être modifiées au moyen d'un dispositif de commande de l'entraînement à impulsions (4.1) de manière à pouvoir obtenir un poids par unité de surface prédéterminé.
  3. Ensemble selon les revendications 1 ou 2, caractérisé en ce que la résistance (3) présente un ou plusieurs barreaux d'étalement (6) disposés de manière à être déviés transversalement par rapport à la direction de transport du faisceau (1) de fibres, et par lesquels le faisceau (1) de fibres peut être guidé à un angle de boucle défini, ou est un dispositif de soufflage ou d'aspiration, un dispositif de serrage ou un dispositif électromagnétique de déviation du faisceau de fibres.
  4. Ensemble selon l'une des revendications 1 à 3, caractérisé en ce que la réserve (2) de faisceau de fibres peut être extraite d'une bobine (7) ne tournant pas librement et disposée en avant de la résistance (3) dans la direction de transport du faisceau (1) de fibres, le premier entraînement à impulsions (4.1) étant disposé après la résistance.
  5. Ensemble selon la revendication 4, caractérisé en ce que la bobine (7) ne tournant pas librement est entraînée, en particulier est une bobine entraînée selon des séquences prédéterminées et de manière pulsée dans la direction de rotation par un deuxième entraînement à impulsions (4.2) dont les séquences prédéterminées de composantes de vitesse sont déphasées par rapport à celles du premier entraînement à impulsions.
  6. Ensemble selon l'une des revendications 1 à 3, caractérisé en ce que la résistance (3) est disposée en aval du premier entraînement à impulsions (4.1).
  7. Ensemble selon la revendication 6, caractérisé en ce que le faisceau de fibres (1) étalé est repris sur un consommateur disposé en aval de la résistance (3) et configuré comme enrouleur (8).
  8. Ensemble selon la revendication 7, caractérisé en ce que l'enrouleur (8) est entraîné à une vitesse d'enroulement constante.
  9. Ensemble selon la revendication 7, caractérisé en ce que l'enrouleur (8) est entraîné par un deuxième entraînement à impulsions (4.2) supplémentaire dont les séquences prédéterminées de composantes de vitesse sont décalées par rapport à celles du premier entraînement à impulsions (4.1).
  10. Ensemble selon la revendication 6, caractérisé en ce qu'un deuxième entraînement à impulsions (4.2) supplémentaire est disposé en aval de la résistance (3), et dont les séquences prédéterminées de composantes de vitesse sont décalées par rapport à celles du premier entraînement à impulsions (4.1).
  11. Ensemble selon les revendications 5, 9 ou 10, caractérisé en ce que l'un des entraînements à impulsions (4.1, 4.2) du groupe des premiers entraînements à impulsions (4.1) et des deuxièmes entraînements à impulsions (4.2) supplémentaires peut être commandé de telle sorte que des séquences prédéterminées de composantes de vitesse puissent être appliquées sur le faisceau (1) de fibres pendant son étalement.
  12. Procédé pour étaler un faisceau (1) de fibres à une vitesse de transport définie, dans lequel une composante pulsée de vitesse est appliquée pendant l'étalement sur la vitesse de transport du faisceau (1) de fibres au moyen d'un premier entraînement à impulsions (4.1) configuré comme entraînement à écrasement, cette composante de vitesse étant dirigée selon des séquences prédéterminées et en alternance dans la direction de la vitesse de transport et en opposition à cette direction, uniquement dans la direction de transport ou uniquement en opposition à la direction de transport du faisceau de fibres (1).
  13. Procédé selon la revendication 12, dans lequel les composantes pulsées de vitesse sont appliquées sur le faisceau (1) de fibres au moyen du premier et d'un deuxième entraînement à impulsions (4.2) dont les composantes de vitesse sont appliquées de manière mutuellement déphasée sur le faisceau (1) de fibres.
EP17180086.5A 2017-07-06 2017-07-06 Dispositif et procédé pour etaler un faisceau de fibres Active EP3425092B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP17180086.5A EP3425092B1 (fr) 2017-07-06 2017-07-06 Dispositif et procédé pour etaler un faisceau de fibres
US16/026,555 US10876224B2 (en) 2017-07-06 2018-07-03 Device and method for spreading a fiber bundle
JP2018128226A JP7197293B2 (ja) 2017-07-06 2018-07-05 繊維束を延展する装置および方法
CN201810742133.4A CN109208140B (zh) 2017-07-06 2018-07-06 用于将纤维束分束的装置和方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17180086.5A EP3425092B1 (fr) 2017-07-06 2017-07-06 Dispositif et procédé pour etaler un faisceau de fibres

Publications (2)

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EP3425092A1 EP3425092A1 (fr) 2019-01-09
EP3425092B1 true EP3425092B1 (fr) 2020-05-13

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JP2019015015A (ja) 2019-01-31
JP7197293B2 (ja) 2022-12-27
CN109208140B (zh) 2022-07-29
US10876224B2 (en) 2020-12-29
US20190010630A1 (en) 2019-01-10
EP3425092A1 (fr) 2019-01-09
CN109208140A (zh) 2019-01-15

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