EP2327648B1 - Dispositif et procédé de production d'une couche UD - Google Patents

Dispositif et procédé de production d'une couche UD Download PDF

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Publication number
EP2327648B1
EP2327648B1 EP10008359.1A EP10008359A EP2327648B1 EP 2327648 B1 EP2327648 B1 EP 2327648B1 EP 10008359 A EP10008359 A EP 10008359A EP 2327648 B1 EP2327648 B1 EP 2327648B1
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EP
European Patent Office
Prior art keywords
filament
filament strands
arrangement
spreading
accordance
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
EP10008359.1A
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German (de)
English (en)
Other versions
EP2327648A2 (fr
EP2327648A3 (fr
Inventor
Matthias Seifert
Frank Vettermann
Astrid Kirchberg
Matthias Thieme
Dietmar Reuchsel
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.)
Karl Mayer Textilmaschinenfabrik GmbH
Original Assignee
Karl Mayer Textilmaschinenfabrik GmbH
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Publication date
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Publication of EP2327648A2 publication Critical patent/EP2327648A2/fr
Publication of EP2327648A3 publication Critical patent/EP2327648A3/fr
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Publication of EP2327648B1 publication Critical patent/EP2327648B1/fr
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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
    • D04H3/04—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments in rectilinear paths, e.g. crossing at right angles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/10—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by devices acting on running material and not associated with supply or take-up devices
    • B65H59/36—Floating elements compensating for irregularities in supply or take-up of material
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments
    • B65H2701/314—Carbon fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/38—Thread sheet, e.g. sheet of parallel yarns or wires

Definitions

  • the invention relates to a device for producing a UD layer of a predetermined number of filament strands with a dispenser assembly for dispensing the filament strands, a memory arrangement for buffering the filament strands, which has its own memory for each filament strand, a Aufspreizanaku and an output.
  • the invention relates to a method for producing a UD layer of a predetermined number of filament strands, which are withdrawn from a dispenser assembly, in which the filament strands are spread in strips, wherein the filament strands between the stripping and the spreading by a storage arrangement, in one stores each filament strand in the memory array individually and leads after spreading to an output.
  • Such a device and such a method are for example out US 2006/0137156 A1 known.
  • DE 10 2005 008 705 B3 shows a device for feeding tapes to a knitting machine in which tapes are withdrawn from bobbins at a uniform speed, but further processed with predetermined downtimes. During downtime, the tapes are cached in a controlled memory.
  • WO 98/44183 A1 describes a method for producing multiaxial fibrous webs.
  • individual filament strands are withdrawn and passed through a voltage setting device after passing through a knocking-spreading device.
  • a drive is only via a winding by means of a coil, which is driven by a motor.
  • Behind the tension adjusting device each filament strand is spread.
  • a measuring device for the spread filament strands is used to control the voltage setting using a cylinder.
  • the adjacent spread filament strands are stored individually in each case in a memory and later provided with a transverse cohesion.
  • a layer is then referred to as a "unidirectional layer" or "UD layer".
  • UD layer a plurality of fibers or filaments lie practically parallel to each other in one direction.
  • Such UD layers serve to produce a mono-, bi- or multiaxial layer.
  • a multiaxial clutch several such UD layers are superimposed and connected with different directions.
  • the fibers or filaments needed to reinforce the fiber reinforced plastic are in the form of filament strands or bundles.
  • a filament strand often contains several thousand individual. There are usually 12,000, 24,000, 50,000 or even 4,000,000 fibers or filaments per strand.
  • the filaments of a filament strand must be handled together.
  • the filament strands are wound on spools, for example. Before processing, the filament strands must then be removed from the spools. Although it can be assumed that the filament strands are all wound with about the same tension on the spools. However, there are local differences that lead to corresponding local changes of the filament strands. If one then spreads the individual filament strands into ribbons and arranges them next to one another, then the problem frequently arises that the UD layer thus produced does not plan, but there are distortions that makes later processing difficult. For example, it is more difficult to drape a cut UD layer into a mold before pouring a plastic matrix.
  • the bands are provided after the spreading of the filament strands with a transverse cohesion, so that there is a transversely continuous UD layer.
  • This layer is then wound up on a tree. To produce a Multiaxialge privileges this UD layer can then be deducted from the tree and processed.
  • the cross-cohesion should minimize the effects of ribbon differences.
  • a scrim that has been cross-cohesively has certain disadvantages in further processing.
  • a UD layer with transverse cohesion can only be deformed in one direction, namely in such a way that the filaments are bent. Due to the transverse cohesion, displacement of the filaments longitudinally relative to one another is practically impossible or no longer possible to a satisfactory extent.
  • US 2006/0137156 A1 shows a dispenser assembly for dispensing filament bundles, a memory assembly having a separate memory for each filament strand, two Aufspreizan onionen and an output with drive rollers. Behind the storage device, a return brake is arranged, which allows a run of the filament bundles only in the transport direction, but not in the reverse direction.
  • DE 100 03 184 A1 shows a device for removing individual, untwisted, flat-laid fiber strands from a rolling gate. These fiber strands are withdrawn via a delivery mechanism from a gate and then passed through a storage arrangement in which a separate memory is provided for each filament strand.
  • the invention has for its object to produce a UD layer with good processability.
  • the delivery mechanism pulls the filament strands out of the dispenser assembly and feeds them to the storage assembly.
  • the memory array is not burdened with the forces that are necessary to strip the filament strands from the dispenser assembly.
  • the filament strand drive arrangement can be formed, for example, by a second delivery mechanism.
  • This Filamentstrangantriebsan extract ensures that the forces that are necessary for spreading the filament strands into ribbons, are decoupled from the forces prevailing at the output. This makes it possible to spread the filament strands with a tensile stress that is, for example, much higher than the tensile stress with which the UD layer is wound up.
  • the storages of adjacent filament strands are arranged offset relative to each other. This means that there is enough space available for each storage unit. For example, if the store has a roll over which the filament strand passes, then one can sufficiently store that roll, for example attach it to a lever arm, so that that roll can change position to provide a variable storage path. You can also store the role in a linear guide. In both cases, one can apply a predetermined tension to the roller (or other deflector) to introduce a given tension into the filament strand. This may be the weight of the roller or an additional force, such as a spring. For all elements of the memory is due to the staggered arrangement of adjacent memory sufficient space available.
  • the memory arrangement preferably has at least one fault sensor.
  • an error sensor for all memory can be provided together.
  • the Aufspreizan onion a plurality Aufsp Dahl wornen on at different Positions are arranged, wherein adjacent filament strands run through different Aufsp Dahl boots.
  • the pitch width is given by the width of the UD layer divided by the number of filament strands used. It can be observed that the spreading of the filament strands into ribbons in many cases results in a thickness distribution in the ribbon which is not constant. Rather, this thickness distribution follows the shape of a bell curve.
  • the thickness of the UD layer can be made to a greater extent than before uniform, for example, by allowing the ribbon to overlap each other in the transverse direction. In this case, two thinner edge sections overlap one another, so that the sum of the thickness of the edge sections results in approximately the thickness of the tapes in their middle. An absolutely constant thickness is not achieved. The thickness is much more uniform.
  • the Aufspreizan onion a calibration device is connected downstream, which forms a width reduction device for each filament strand.
  • the calibration device pushes the ribbon, so the spread filament strands, transverse to the direction of something again together.
  • the calibration device mainly acts on the filaments which are arranged in the edge regions. The center of the bands remains essentially unchanged by the calibration device. If filaments on the edges something are pushed together, then there is an increase in thickness, which is desired to make the thickness of the ribbon again uniform.
  • the calibration device one often gets by without overlapping the ribbon. The tapes then have no cross-cohesion with each other, so that a good deformability of the UD layer is ensured in several directions.
  • the calibration device preferably has a bandwidth variation device.
  • a bandwidth variation device When pushing the ribbon transverse to its direction of rotation, one can thereby produce portions of the bands which have a greater width and portions which have a smaller width. If the individual ribbons are then arranged next to one another, gaps are created in the sheet formed thereby, through which plastic can later pass. This makes it easier to realize a penetration of the gel with plastic.
  • the bandwidth variation device may be formed in different ways. If the calibration device has a rotating shaft with grooves that ultimately define the width of the ribbons, then one can easily change the width of the ribbons by using grooves having a varying width in the circumferential direction. In this case, the width of the ribbons thus produced varies periodically.
  • Another possibility is to form the calibration device by flanges located on a shaft, between which the tapes are passed.
  • By changing the axial position of the flanged wheels can be a change in the width of the Ribbon effect.
  • a dividing device is arranged in front of the spreading arrangement, which has at least one guide body with a groove for each filament strand.
  • the groove determines the position of the ribbon. This allows the individual ribbons to be positioned with relatively high accuracy where they are needed later in the UD position. This is true even if the tapes are withdrawn from spools having a cross winding appearance.
  • the Filamentstrangantriebsan Aunt has a nip, in which the spread filament strands are subjected to a pressure.
  • the nip which may also be referred to as a nip, is formed for example by a pressure roller and a counter-element.
  • the pressure roller ensures that the tapes in the filament strand drive arrangement can be taken without slip, so that they can be fed to the output, for example a winding, with defined tension conditions.
  • the object is achieved in a method of the type mentioned above in that it subtracts the filament strands by means of a delivery mechanism from the dispenser assembly and supplies them to the storage arrangement and drives behind the spreading by a Filamentstrangantriebsan effetiser.
  • the UD layer can be made of ribbons, which also have locally the same position.
  • the starting point is the idea that the filament strands wound up on the coils basically have the same properties. However, differences may arise over the unwind length of a single spool which can be compensated for by the individual buffering of the individual filament strands.
  • a voltage at which the filament strands are spread is decoupled from a voltage at the output. This makes it possible to spread the filament strands with a relatively high voltage, so that you can produce very thin ribbon.
  • the filament strands are spread out over a pitch width into ribbons, the pitch width corresponding to the width of the UD layer divided by the number of filament strands.
  • the usual spreading of the filament strands takes place in that the filament strands via a rod with a relative small diameter pulls. In many cases you also use two or more rods.
  • the filament strand is then subjected to a certain tensile stress.
  • the filaments of the filament strand farther from the rod then attempt to approach the rod, trying to displace the filaments between themselves and the rod. In the middle of the filament strands, this displacement can not proceed as well as in the edge regions. Accordingly, a somewhat greater thickness remains in the middle of the filament strands.
  • edge regions are thinner, so that the thickness distribution follows approximately the shape of a bell curve. If you increase the filament strands beyond the pitch width, then you have several options to make the thickness of the UD layer a little more uniform. One way is to let adjacent bands overlap one another. In this case, the sum of the thinner edge regions results in approximately the thickness in the middle of the ribbons. An absolute uniformity of the thickness will not be achieved thereby. The thickness is much more uniform than before.
  • the bands are laterally pushed together after spreading. By pushing together only the filaments in the edge regions are applied. By contrast, the filaments in the middle of the ribbons are normally unaffected by the collapse. By pushing together so only the thickness of the ribbon is increased in the edge regions. In the middle it remains unchanged.
  • ribbons of varying width are produced.
  • the width change can be done periodically, for example.
  • Adjacent tapes can then be arranged next to one another in such a way that they hit one another with their larger widths, so that a gap remains in the flat material in the areas of smaller width.
  • Fig. 1 shows a device 1 for generating a UD layer, which is wound on a tree 2.
  • the tree 2 has side windows 3 and is arranged in a winding device 4.
  • a winding device 4 In the winding device 4 is a supply reel 5, from which a separating material 6 is withdrawn.
  • the release material 6 is, for example, a paper or a foil made of plastic or a fabric or any other surface material which, during winding up of the UD layer 7 (FIG. Fig. 5 ) is wound together with the UD layer 7, so that the separating material 6 separates two successive turns of the wound on the tree 2 winding from each other.
  • a plurality of coils 9 are arranged, of which in each case a filament strand 10 is pulled off tangentially.
  • the filament strands 10 are wound onto the bobbins 9 in a cheese form.
  • the tangential deduction of the rotating coil 9 avoids that a rotation is entered into the filament strand 10.
  • the coil 9 is braked.
  • the band tension achieved should be as uniform as possible and constant over the entire course of the coil. If you are talking about filaments and filament strands then you should also fibers and fiber strands underneath to be understood.
  • the gate 8 has at its output guide elements 11, which prevent the filament strand 10 causes a lateral movement, which could be caused by the Buchspulied.
  • These guide elements 11 consist for example of flanged wheels at deflection points. If particularly high demands are made on the running quality and the lateral offset should be further minimized, so also not shown band pivot come into consideration. These bands pivot the filament strand 10, which is iridescent and unwound from the coil 9, in the vertical order. The lateral offset is thereby converted into a rotation about the longitudinal axis of the filament strand 10.
  • the gate 8 is followed by a transition region 12, which bridges a distance to a first delivery mechanism 13.
  • the plurality of filament strands 10 runs approximately parallel and with a distribution transversely to the running direction, which essentially corresponds to the width of the finished UD layer 7.
  • the filament strands 10 are therefore evenly distributed over this width.
  • each filament strand 10 is guided without slip over a plurality of drive rollers 14.
  • the freedom from slippage results from a sufficiently large wrap around the drive rollers 14.
  • the drive rollers 14 have the same peripheral speed. This is achieved in a simple manner in that they all have the same diameter and identical speeds. For this purpose, they are driven by a common servo motor 15 for the sake of simplicity. All filament strands 10 are transported at the same speed. All filament strands 10 lie parallel in a plane.
  • the first delivery mechanism 13 is followed by a storage arrangement 16, which has a separate storage path for each filament strand 10.
  • the memory arrangement 16 has three cylinders 17-19. There may also be more cylinders 17-19.
  • the incoming filament strands 10 are then passed alternately in the transverse direction over the first cylinder 17 in the running direction or over the cylinder 18 in the running direction down.
  • a filament strand 10, which is passed over the cylinder 17 down, is deflected by a roller 20 back up, the roller 20 is disposed on a pivotable lever 21.
  • the corresponding filament strand 10 is deflected again in the direction of travel.
  • each filament strand 10 is assigned a separate roll 20, 22.
  • the rollers 20, 22 form a storage path with a variable length and act on the corresponding filament strand 10 by their own mass or by other suitable means, such as a spring, a working cylinder or the like, with a tensile force. This creates a tension in the filament strand 10. In this case, each filament strand 10 is acted upon individually.
  • the flock of filament strands 10 is divided into two groups or levels.
  • the memory arrangement 16 is followed by a dividing device 24.
  • the dividing device 24 has two deflection bars 25, which have two tasks.
  • the deflection rods 25 have a plurality of ribs, so that grooves are formed, in each of which a filament strand 10 is guided becomes.
  • the term "groove" is to be understood here generally as a geometric shape having two lateral boundary walls.
  • the arrangement of the grooves results in a predetermined position for each filament strand 10 in the width direction.
  • the basis weight of the ribbon 26 corresponds to the basis weight of the UD layer 7.
  • the ribbon 10 are suitably guided in S-shape over two or more deflection rods 25. Since this guidance already takes place under a certain tension, this already sets up a low spreading effect.
  • the dividing device 24 is followed by a spreading arrangement 27.
  • a plurality of deflection rods 28a, 28b are arranged, over which the group of filament strands 10 is pulled.
  • a predetermined angle for example 180 °
  • the filament strands 10 are thereby spread.
  • the wrap around the deflecting rods 28 is adjustable. The values for the tension in the filament strands 10, processing speed and wrap angle are properly selected when, after the spreading arrangement 27, the widths of the then formed ribbon 26 correspond to a predetermined value.
  • Fig. 6 shows the Aufspreizan Aunt 27 something clear in a schematic representation. It can be seen that two deflecting rods 28a, 28b are provided, which are arranged at different positions. About this deflecting rods 28a, 28b adjacent filament strands 10 are guided alternately. When numbering the filament strands 10 in the transverse direction, for example, the filament strands 10 with an odd ordinal number are guided over the deflection rods 28a and the filament strands with a straight ordinal number are guided over the deflection rods 28b. Auxiliary rollers 44-47 ensure the course of the filament strands 10.
  • ribbon 26 which have a thickness profile in the transverse direction, which has approximately the shape of a bell curve.
  • the bands 26 are somewhat thicker in their middle than in their edge regions. If one composes a UD layer 7 of such bands 26, then the UD layer 7 has a corresponding ripple.
  • the calibration device 48, 49 has, for example, for each ribbon 26 a groove, which ultimately defines the width of the ribbon 26, which has been passed through the groove. Since the ribbon 26 was previously wider than the groove, the ribbon 26 is slightly collapsed laterally in the groove, i. the calibration device 48, 49 forms a width reduction device. The width of the ribbons 26 can then be adjusted exactly to the pitch width, so that after joining the ribbons 26 in a nip 50, which is formed by two rollers 51, 52, a sheet is formed in which there are no longer any gaps. However, one can set the width of the ribbon 26 is also slightly less than the pitch width, so that gaps between adjacent bands 26 result, for example, have a width of 0.1 to 0.5 mm.
  • the grooves of the calibration devices 48, 49 are arranged offset in the transverse direction to each other and that by the width of each groove, so that the ribbon 26 can later unite without further deflection in the transverse direction to the UD layer 7.
  • Fig. 3 are at the output of Aufspreizan Aunt 27 a plurality of tapes 26 gapless side by side to recognize, so that there is the impression of a sheet.
  • a voltage measuring device 29 is arranged, which determines the voltage of the individual bands 26 individually.
  • the tension measuring device 29 is in Fig. 4 magnified.
  • the individual ribbons 26 are each guided individually via a measuring cylinder 30, 31. Since the bands 26 have already reached their final width in this area, ie form a closed area, it is necessary to separate the bands 26 into two levels, so that each band can be measured individually. Since a transverse cohesion between two adjacent bands 26 is not present, such a separation is easily possible.
  • the measuring cylinder 30 is attached to a lever 32 which is supported by a roller 33 on a measuring sensor 34.
  • the measuring sensor 34 may be a piezoelectric sensor. But he can also work according to another principle.
  • the measuring cylinders 31 of the other group are mounted in a corresponding manner on levers which are supported on a measuring sensor 34 via rollers.
  • the measuring sensor 34 is arranged on a support 35, which is displaceable on a rail 36 transversely to the direction of the tape 26 and can be moved iridescent under the levers 32 back and forth.
  • the tension measuring device 29 is followed by a second delivery mechanism 37 as a filament strand drive arrangement.
  • the second delivery mechanism 37 has a plurality of rollers 38 over which the bands 26 are guided without slip.
  • the rollers 38 have the same peripheral speed. They have expediently the same diameter and are driven by a servo motor 39 at the same speed.
  • At the last of the rollers 38 may still be arranged in a manner not shown nor a pinch roller, so that there is a nip, through which the ribbon 26 to spread filament strands 10 are guided. That's one way to do it ensure that the bands 26 are guided without slip by the second delivery mechanism 37.
  • the second delivery mechanism 37 together with the band storage arrangement 16, generates the tension necessary for spreading or spreading the filament strands 10 into ribbons 26.
  • This voltage can be relatively high.
  • the tension necessary to spread or spread the filament strands 10 to ribbon 26 may be on the order of 100 to 400N.
  • the UD layer 7 is to be stored with a substantially lower voltage than winding. Accordingly, one may use the second delivery mechanism 37 to achieve decoupling between the tension used to spread the filament strands 10 and the winding tension.
  • a band storage device 40 is provided, which is arranged between the second delivery mechanism 37 and the winding device 4.
  • the tape storage device 40 may be constructed exactly as the storage device 16. However, the adjustment of the pulling force on the levers 21, 23 may differ substantially from the values of the storage device 16.
  • the size of the voltage is dependent on the demands on the end product, ie the UD layer 7, and the material properties of the filament strands 10.
  • the UD layer forms again automatically with a closed surface without gaps and without cross-cohesion between the individual strips 26.
  • the transverse cohesion is at most as great as the transverse cohesion between filaments within a filament strand 10.
  • the UD layer is then wound up between the side windows 3 of the tree 2.
  • the drive of the tree 2 is effected by a servomotor 41, which operates in conjunction with the motors 15, 39 of the two delivery mechanisms 13, 37.
  • a servomotor 41 which operates in conjunction with the motors 15, 39 of the two delivery mechanisms 13, 37.
  • the torque of the servomotor 41 increases. However, the speed may decrease.
  • All filaments of the superimposed turns of the UD layer are parallel. To avoid that these parallel filaments or fibers cling to each other, the release material 6 is wrapped during winding between the individual turns with.
  • the separating material 6 is unwound from the supply reel 5, which may be driven or braked by a servo drive 43. This ensures that also the separating material 6 is supplied with a constant tensile force over the entire winding process.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Moulding By Coating Moulds (AREA)
  • Forwarding And Storing Of Filamentary Material (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Treatment Of Fiber Materials (AREA)

Claims (13)

  1. Dispositif de production d'une couche UD (7) à partir d'un nombre prédéterminé de brins de filament (10) avec un dispositif de distribution (8) pour la sortie des brins de filament (10), un dispositif de stockage (16) pour le stockage intermédiaire des brins de filament (10) qui présente un propre réservoir pour chaque brin de filament (10), avec un dispositif d'écartement (27) et une sortie, caractérisé en ce qu'un dispositif d'alimentation (13) est disposé entre le dispositif de distribution (8) et le dispositif de stockage (16) et un dispositif d'entraînement de brin de filament (37) est disposé dans le sens de la marche derrière le dispositif d'écartement (27).
  2. Dispositif selon la revendication 1, caractérisé en ce que les réservoirs de brins de filament (10) contigus sont disposés en déport les uns des autres.
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que le dispositif de stockage (16) présente au moins un détecteur d'erreur.
  4. Dispositif selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le dispositif d'écartement (27) présente plusieurs systèmes d'écartement (28a, 28b) qui sont disposés sur différentes positions, où des brins de filament (10) contigus passent par différents systèmes d'écartement (28a, 28b).
  5. Dispositif selon la revendication 4, caractérisé en ce qu'un dispositif de calibrage (48, 49) qui forme pour chaque brin de filament (10) un dispositif de réduction de largeur, est installé en aval du dispositif d'écartement (27).
  6. Dispositif selon la revendication 5, caractérisé en ce que le dispositif de calibrage (48, 49) présente un dispositif de variation de largeur de bande.
  7. Dispositif selon l'une quelconque des revendications 1 à 6, caractérisé en ce qu'un dispositif de séparation (24) qui présente au moins un corps de guidage avec une rainure pour chaque brin de filament (10) est disposé en amont du dispositif d'écartement (27).
  8. Dispositif selon l'une quelconque des revendications 3 à 6, caractérisé en ce que le dispositif d'entraînement de brin de filament (37) présente une ligne de contact, dans laquelle les brins de filament (10) répandus sont soumis à une pression.
  9. Procédé de production d'une couche UD (7) à partir d'un nombre prédéterminé de brins de filament (10) qui sont retirés d'un dispositif de distribution (8), pour lequel on écarte les brins de filament (10) pour former de petites bandes (26), où l'on guide les brins de filament (10) entre le retrait et l'écartement par un dispositif de stockage (16), dans lequel on stocke individuellement chaque brin de filament (10) dans le dispositif de stockage (16) et après l'écartement jusqu'à une sortie, caractérisé en ce qu'on retire les brins de filament (10) à l'aide d'un dispositif d'alimentation (13) du dispositif de distribution (8), les amène au dispositif de stockage (16) et les entraîne après l'écartement par un dispositif d'entraînement de brin de filament (37).
  10. Procédé selon la revendication 9, caractérisé en ce qu'on découple une tension, avec laquelle les brins de filament (10) sont écartés, d'une tension sur la sortie.
  11. Procédé selon la revendication 9 ou 10, caractérisé en ce qu'on écarte les brins de filament (10) au-delà d'une largeur de séparation pour former de petites bandes (26), où la largeur de séparation correspond à la largeur de la couche UD (7) divisée par le nombre de brins de filament (10).
  12. Procédé selon la revendication 11, caractérisé en ce qu'on regroupe latéralement les petites bandes (26) après l'écartement.
  13. Procédé selon la revendication 12, caractérisé en ce qu'on génère des petites bandes (26) avec une largeur se modifiant lors du regroupement.
EP10008359.1A 2009-11-27 2010-08-11 Dispositif et procédé de production d'une couche UD Not-in-force EP2327648B1 (fr)

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DE102009056189A DE102009056189A1 (de) 2009-11-27 2009-11-27 Vorrichtung und Verfahren zum Erzeugen einer UD-Lage

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EP2327648A2 EP2327648A2 (fr) 2011-06-01
EP2327648A3 EP2327648A3 (fr) 2012-07-18
EP2327648B1 true EP2327648B1 (fr) 2013-09-25

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EP (1) EP2327648B1 (fr)
JP (1) JP5343059B2 (fr)
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DE (1) DE102009056189A1 (fr)

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Also Published As

Publication number Publication date
US20110154630A1 (en) 2011-06-30
JP5343059B2 (ja) 2013-11-13
EP2327648A2 (fr) 2011-06-01
CN102080305A (zh) 2011-06-01
DE102009056189A1 (de) 2011-06-01
EP2327648A3 (fr) 2012-07-18
CN102080305B (zh) 2014-02-12
US8578575B2 (en) 2013-11-12
JP2011111329A (ja) 2011-06-09

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