EP2003232A1 - Method and device for creating a unidirectional fibre layer, method for manufacturing a multi-axial layed fabric and a multi-axial machine as well as a method for manufacturing a woven cloth and weaving machine - Google Patents

Abstract

Device for applying a strip-like unidirectional fibrous layer (17) on a support which moves in the longitudinal direction of the layer comprises a spool rack forming a single component with a spreading unit (6) to control the movement in the feeding direction to the fiber sheath (10) to the placing unit (13). Independent claims are also included for the following: (1) Method for applying a strip-like unidirectional fibrous layer on a support which moves in the longitudinal direction of the layer using the above device; (2) Method for producing a strip-like multi-axial clutch; and (3) Weaving loom for producing a fiber cloth consisting of the above device. Preferred Features: The placing unit places the fiber sheath as an endless material on the support.

Description

The invention relates to a method for applying a band-, strip- or web-shaped unidirectional fiber layer to a moving in the longitudinal direction of the resulting fiber layer support having the features a to c of claim 1 of the application. The invention also relates to a corresponding device according to the preamble of claim 7.

Methods and devices of this kind are state of the art. They are typically used to build multi-axial webs by sequentially stacking a number of unidirectional fiber layers with different directions of their fibers in sections. The support listed in claims 1 and 7 is for the first deposited fiber layer an endless transport device, which moves in the longitudinal direction of the resulting fiber layer and thus also in the longitudinal direction of the later formed Multiaxialgeleges. As a transport device especially two spaced apart parallel conveyor chains are common, which are provided with holding devices for the deposited fiber bundles. The located between the conveyor chains sections of laid unidirectional fiber bundle are held by these holding devices not only, but if possible also tightened so that they do not sag. For the fiber bundles deposited thereafter, the mentioned base is formed by the already existing unidirectional fiber layer; but they are also attached to the holding devices of the conveyor chains.

The individual fibers mentioned in claims 1 and 7 are also referred to as cables, threads or rovings. They consist of many individual filaments and may have circular cross-section or be widened so that they have the shape of a flat cable. Multiaxial covers are used to reinforce fiber composite components. As more and more complicated components are manufactured according to this technique, the multi-axial cores must be able to deform well, i. be drapable. Thus, unidirectional fiber layers of thin fibers are needed. Thin fibers are very expensive; This is especially true for carbon fibers. It has therefore begun to use relatively thick fibers as the starting material and to "spread" them, i. to widen, and thus produce a fiber bundle, which consists of parallel widened fibers and has a low basis weight. At present, carbon fibers with 12,000 filaments and more (K number greater than 12) are widened by rolling and processed into thin, closed-area bands. These can be draped with complicated laying in the best way to complicated designs.

There are also proposals already made to spread the relatively thick fibers, which form the starting material, on the multi-axial machines. This approach is called in the jargon "online spreading". The operator of a multi-axial machine derives the stock from commercially available reels which are stored and unwound in a creel adjacent to the multi-axial machine. The unwound individual fibers are brought together and passed through a spreader unit where they receive their parallel orientation in the form of an endless thin strip and are fed to the laying device.

This prior art is already considered in the features a to c of claim 1 and in the preamble of claim 7. He is documented for example by the US Pat. No. 6,599,610 B2 , the EP 1 695 934 A2 and the DE 103 12 534 B3 ,

The US Pat. No. 6,599,610 B2 deals with a device for laying a unidirectional fiber layer between two conveyor chains. The fibers are guided as endless material across the conveyor chains. The spreading unit is located at the very front of the deposit and would practically form a unit with a thread guide. It would therefore have to be moved transversely to the conveyor chains and - at the reversal points - also in the direction of the conveyor chains, but opposite to the transport direction together with the thread guide. A creel from which the fibers are unwound, although mentioned in the text, but not shown. Thus, the US Pat. No. 6,599,610 B2 at most be understood as a fundamental suggestion to include the spreading or widening of the fibers in the process of applying a multi-axial fiber layer. Practically useful suggestions on how to do this constructively can be found in the US Pat. No. 6,599,610 B2 but do not take it. The broadening of the fibers in the area of the constantly moving yarn guide can not lead to spread fiber layers with consistent good properties in any case. Incidentally, the widening is effected by stationary or rotating rollers which vibrate in the direction of their longitudinal axes.

In the device according to the EP 1 695 934 A2 slivers, which already have a flattened cross section, are withdrawn from the coils of a creel. This purpose, a delivery mechanism of three roles, which is located in the course of the band history far in front of the installation device. The laying device and the delivery works work intermittently and synchronously; if the laying device requires no sliver, the delivery plant is also silent. In the phases of its stoppage the slivers are deducted from a tape storage, which is arranged in the course of the belt run between the creel and the delivery mechanism. The strip accumulator consists essentially of a movable deflection roller, which is extended by an actuator laterally to the belt path and accommodates the temporarily unneeded fiber ribbons. The movement of the strip storage is and the drive of the delivery system are matched by the machine control. The intermediate band memory should cause the slivers to be withdrawn uniformly from the bobbin creel coils at a constant speed. So that should a uniform state of tension can be achieved in the slivers, which is a prerequisite for a uniform laying.

According to the EP 1 695 934 A2 The slivers, which are used as starting material on the bobbins of the creel, widened even further in the course of the band. For this purpose, fixed heating devices are provided at different points of the device, which are partly before, partly behind the delivery mechanism. Only those heating devices, which are located in the direction of the fiber slivers in front of the delivery, act on continuously and uniformly moving slivers. The heating devices located behind the delivery unit have an intermittent, non-uniform strip course. This is especially true for a downstream of the delivery heating channel, which may have a length of the entire fiber length, which is required in a laying stroke of the laying device. On the heating channel also spreading elements should join, which complete the widening process and may consist of Umlenkösen or pipes, which deflect the slivers several times by sliding contact.

The known device according to the EP 1 695 934 A2 thus has the disadvantage that the broadening of the slivers takes place to a considerable extent at intermittently and discontinuously, so moving at varying speeds slivers. The goal of producing a uniform state of stress in the widened fiber slivers can thus only be achieved imperfectly. For example, the heating effect at alternating phases of stoppage and movement must result in uneven. Furthermore, abrasion and uneven sliding operations are to be expected in the mechanical widening elements. Finally, heat losses and high operating costs are to be expected if the widening by heating is distributed over several stations along the course of the strip.

Finally, the shows DE 103 12 534 B3 a method and an apparatus for laying slivers to unidirectional fiber layers, wherein the slivers on their way from the creel to the laying device a Go through spreading, in which they are further widened. For spreading serve unspecified spreader, which are recognizable in the drawing as rollers. After leaving the Spreizaggregats the individual slivers run parallel next to each other; they may be laterally spaced or close together.

The slivers are withdrawn from the spools of the creel by a continuously conveying delivery, which is located at the exit of the creel. Between the delivery mechanism and the spreading unit, a loop-forming intermediate store is provided according to the principle of the deflectable roller, which is intended to compensate the speed differences between the delivery mechanism and the sliver at the laying device for each sliver. The slivers or shares are in accordance with the DE 103 12 534 B3 although laid as endless material; but also here speed changes occur because the filing is done by a reciprocating motion on the transport chains, wherein in the turning points and a stoppage is possible. Thus, in this known device, the spreading unit is arranged in a region in which the slivers do not move continuously at a constant speed, but with changing speed or even intermittently.

In contrast, the invention is based on the object, the known methods and devices for applying strip, strip or web-shaped unidirectional fiber layers whose fibers are widened in the course of application, with the aim to improve that the widened fibers of the fiber bundles, which are supplied to the laying device, are in a uniform state of tension, whereby they can be laid evenly and eventually lead to end products of high quality.

This object is achieved with respect to the method by the entirety of the features of claim 1 and with respect to the device by the totality of the features of claim 7.

By according to the invention, the creel together with the Spreizaggregat is moved as a common structural unit in accordance with the need, which consists in the laying device, is ensured in an advantageous manner that the fibers unwound at a constant speed of the bobbin of the creel and through the Spreizaggregat be directed. The necessary counterbalancing movements required by the uneven working movement of the laying device will perform the structural unit as a whole, so that they can not affect the speed of the fibers passing through the spreader unit.

In the method and device according to the invention, the movements of the laying device, e.g. the yarn guide in endless laying or a gripper when laying in band-shaped cut sections, and the movement of the common structural unit are matched. The structural unit may e.g. be designed as a carriage or carriage, on which the creel and the Spreizaggregat are housed. Then it can be achieved that the required reciprocating movement of the common unit has no effect on the stress state of the widened collimated fibers. Then there are the uniform spreading conditions that lead to a stored unidirectional layer of uniform and consistent properties.

In the device according to the invention, the spool of the creel can be driven individually (positive deduction), or the fibers can be deducted from non-driven spools; this can be done by a group of driven rollers arranged in the course of the fiber or by the laying device.

For the spreading all common spreading means in question, so driven or non-driven rollers that vibrate in the direction of its longitudinal axis, but also rotating curved rollers, and finally stationary arranged deflection members such as eyelets or pipes through which the fibers are passed through Z-shaped or S-shaped. The heating of the fibers to prepare and complete the broadening may be added.

In the band, strip or web-shaped unidirectional fiber layer, the broadened fibers may be close together or may be at a desired mutual lateral separation. It is also possible to give the fiber layer before applying to the support a cohesion, which can serve, for example, cross-applied threads of a fusible material or adhesive sheets. The individual means for this are familiar to the expert.

Embodiments of the method and the device according to the invention are listed in the subclaims 2 to 5 and 8 to 13.

Thus, both the continuous laying of the fiber bundles as well as the installation in individual cut fiber bundle sections is possible, wherein the separation into individual sections on the device itself can be carried out in the course of applying. Details of the installation in individual sections cut to length, for example, in the DE 102 14 140 A1 described and illustrated.

If the common structural unit of creel and Spreizaggregat is designed in the form of a carriage, this is advantageously guided movably on a linear guideway, which is mounted in the laying direction of the fiber bundle running laterally next to the moving support at the point where applied to the fiber bundle becomes. The "support" will, in most cases, be formed by the usual pair of parallel driven conveyor chains provided with the usual set of yarn guides or even unidirectional fiber sets already stored.

A unidirectional fiber layer, which is produced by the method according to the invention and the device according to the invention, will in many cases already be suitable for the construction of a fiber composite part.

For example, it can be added to a non-woven fabric, which is also multi-layered. Or it will be embedded in a matrix of a plastic part.

However, the invention also relates to a method for producing a band, strip or web-shaped Multiaxialgeleges according to claim 6 and also a corresponding multi-axial machine according to claim 14. Here, the inventive method and the device for applying the unidirectional fiber layer are advantageously used to build Multiaxialgelegen.

According to claim 15, such a multi-axial machine can advantageously be designed so that in the direction of movement of the endless conveyor successively differently configured devices for applying the unidirectional fiber layers are arranged. So it can be stored in continuous order broadened and not broadened fiber bundles as continuous material or in cut fiber bundle sections to unidirectional fiber layers. The invention thereby advantageously and economically enables the construction of multiaxial webs of unidirectional fiber layers, which are very different in the material, the strength and the type of laying of the individual fibers. As a result, an optimal adaptation of the reinforcing fibers is given to the subsequent load of the fiber composite component to be produced.

The invention also relates to a method for producing a fiber fabric, in which at least the fibers forming the weft threads are fed to the device for weft insertion of a weaving machine in the form of a collimated fiber bundle. Such fabrics have also proved to be very advantageous due to their simpler textile handling and their good drapability in fiber composite construction. They are widely used in different bindings and as mixed or hybrid fabrics and mesh fabrics, with carbon and glass fibers being used particularly frequently, cf. this the textbook of M. Flemming, G. Ziegmann and S. Roth, "fiber composite construction", sub-band "Semi-finished and Bauweise", Berlin, Heidelberg 1996, pages 58 to 75 ,

The proposal according to the application can also be used to advantage in the weaving of such reinforcing fabrics. The fibers of the weft threads are withdrawn from a creel and go through a Spreizaggregat, creel and Spreizaggregat are controlled as a common structural unit movable and upstream of the device for weft insertion. The intermittent and discontinuous movement of the weft fibers during weft insertion is compensated by the opposing movement of the structural unit, so that here also fiber bundles of high uniformity are woven, the thin, d. H. good drapable and yet inexpensive.

Advantageous embodiments of the inventive method for producing the fiber fabric are listed in the dependent claims. A corresponding loom according to the invention is the subject of claim 19. Advantageous embodiments of this loom are listed in subclaims.

The details, embodiments and advantages mentioned for the application of unidirectional fiber layers, for the production of multiaxial layers and the corresponding devices and multiaxial machines apply mutatis mutandis to the inventive method for producing a fiber fabric and the corresponding loom.

• Fig. 1 ist eine Seitenansicht der beweglichen Einheit, auf der sich ein Spulengatter und ein Spreizaggregat befinden.
• Fig. 2 zeigt eine Ansicht von oben auf die bewegliche Einheit gemäß der Fig. 1.
• Fig. 3 verdeutlicht im Sinne einer Prinzipskizze das Zusammenwirken der beweglichen Einheit mit der Verlegeeinrichtung einer Multiaxialmaschine.
• Fig. 4 bis 10 sind der Fig.3 entsprechende Darstellungen bei unterschiedlichen Stellungen von beweglicher Einheit und Verlegeeinrichtung während des Verlegens einer unidirektionalen Faserlage.
• Fig. 11 zeigt im Zusammenhang den Verbrauch an Fasermaterial an unterschiedlichen Stellen einer Multiaxialmaschine.
• Fig. 12 ist eine der Fig. 11 entsprechende Darstellung für den zeitlichen Ablauf der Geschwindigkeiten der Verlegeeinrichtung, der beweglichen Einheit und der von den Spulen abgezogenen Fasern.

The invention will be explained in more detail with reference to an exemplary embodiment shown in the drawing. The figures show the following:

• Fig. 1 is a side view of the movable unit on which a creel and a spreading unit are located.
• Fig. 2 shows a top view of the movable unit according to the Fig. 1 ,
• Fig. 3 illustrates in the context of a schematic diagram the interaction of the movable unit with the laying device of a multi-axial machine.
• Fig. 4 to 10 are the Figure 3 corresponding representations at different positions of movable unit and laying device during the laying of a unidirectional fiber layer.
• Fig. 11 shows in connection the consumption of fiber material at different locations of a multi-axial machine.
• Fig. 12 is one of the Fig. 11 corresponding representation of the timing of the speeds of the laying device, the movable unit and the withdrawn from the coils fibers.

In Fig. 1 is denoted by the reference numeral 1, a machine frame which can form a lateral attachment to a multi-axial machine, see. For this Fig. 3 , The machine frame 1 has a track in the form of guide rails 2. On this a movable unit in the form of a carriage 3 by means of rollers 4 is movable. The carriage 3 carries a creel 5 and a spreading unit 6, which is designed as a continuous unit. The creel 5 consists of a plurality of bobbins 7 on which individual fibers 8, for example carbon fibers or aramid fibers, are wound up as bobbin material.

The individual fibers 8 are withdrawn via pulleys 9 of the coils 7 and guided by the spreading unit 6. For the arrangement of the coils 7 and the guide rollers 9 is decisive that the withdrawn individual fibers 8 do not touch each other before entering the Spreizaggregat 6. The coils 7 are equipped with braking devices so that the mechanical stress in the drawn fibers 8 can be adjusted and controlled. The guide rollers 9 must just as well as existing guide eyelets or similar guide members have a smooth surface, so they do not damage the sensitive coil material. To exclude a mutual contact of the withdrawn fibers 8, the individual coils 7 and pulleys 9 are not only in height, but also offset laterally, see. Fig. 2 ,

For the execution of the spreading unit 6 numerous proposals are known. For example, the fibers 8 can be widened by passing them over rollers that are vibrated or heated in their axial direction. Also, the treatment with rotating, curved rollers for the purpose of spreading or broadening belongs to the prior art. The different methods can also be used together. The operation of the spreading unit 6 can therefore be assumed to be known. The aim of this treatment is always to transform the relatively thick individual fibers 8, especially carbon fibers, into a flat, band-shaped fiber bundle 10 of widened fibers, which lie parallel to each other in a close-fitting manner. Such fiber bundles 10 thus form the suitable material for a unidirectional fiber layer 17 of low basis weight.

In Fig. 3 is shown as the combined to form a carriage 3 structural unit of creel 5 and 6 Spreizaggregat the multi-axial machine is spatially associated and cooperates with this. Of the multi-axial machine only the two conventional conveyor chains 12a, b are indicated, the upper halves move in the transport direction according to the directional arrows 18. An arrow 19 indicates the laying direction of the fiber bundle 10 provided on the carriage 3.

The fiber bundle 10 provided by the carriage is transferred by means of a laying device 13 to the conveyor chains 12a, b. Their function is to take over a section of the endless fiber bundle 10 provided on the carriage 3, to guide it via the conveyor chains 12a, b, to separate it from the endless supply and finally to transfer it to the fastening devices located on the conveyor chains 12a, b , As the Fig. 3 shows, the machine frame 1 for the carriage 3 in the laying direction 19 of the fiber bundle 10 is arranged laterally adjacent to the multiaxial machine. In other words, the carriage 3 with the creel 5 and the Spreizaggregat 6 moves in the laying direction 19 of the fiber bundle 10 controlled driven back and forth.

In the DE 102 14 140 A1 The applicant is already described and illustrated a laying device with which a fiber bundle 10 provided by an endless supply, transferred in cut off, cut sections on the conveyor chains 12a, b of a multi-axial machine and finally secured in clamping devices, which are located on the conveyor chains. A laying device of this type can also be used here. The description can therefore be kept short.

The reference numeral 11 is in Fig. 3 a releasable holding and detecting means, which serves to hold the front free end of the spreading unit 6 leaving fiber bundle 10 until it is passed over the conveyor chains 12a, b. For this purpose, a gripper 15 is used, which is driven to move back and forth along a guide track 14 transversely to the conveying direction 18 of the conveyor chains 12a, b. The guideway 14 therefore also runs in the laying direction 19 of the fiber bundle 10. When dissolved holding and detecting device 11, the gripper 15 takes over the free end of the fiber bundle 10 and performs it across the conveyor chains 12a, b. The strip-shaped section of the fiber bundle 10 located above the two conveyor chains 12a, b is then separated from a separating device, not shown, which is located in the region of the holding and detecting device 11, and thus becomes a separate fiber bundle section 10a. The newly formed free end of the endless fiber bundle 10 is then held by the holding and detecting device 11 again. The cut fiber bundle section 10a located above the conveyor chains 12a, b, on the other hand, is grasped at its two ends by a laying device 16, likewise belonging to the laying device 13, which is driven to be reciprocated in the direction of the conveyor chains 12a, b. The Leger clamping device 16 finally passes the cut fiber bundle section 10a to clamping devices, not shown, which are located on the conveyor chains 12a, b. The fiber bundle section 10a has thus finally become part of the laid unidirectional fiber layer 17.

The FIGS. 4 to 10 correspond to the Fig. 3 , but are simplified in the presentation. Above all, they show the movement of the carriage 3 in the Functional relationship with the transfer of the cut fiber bundle sections 10a to the conveyor chains 12a, b by means of the laying device 13. In the following, the individual phases in the function of the laying device 13 will first be described on the basis of FIG FIGS. 3 to 10 deepened and presented in detail.

In FIG. 3 is the holding and detecting device 11 is closed, and the gripper 15 has indeed already detected the free end of the fiber bundle 10, but is still at rest.

In the FIGS. 4 to 6 the holding and detecting device 11 is opened; the gripper 15 has set in motion, cf. the movement arrow 20, and pulls the yarn sheet 10 at its front end along the guide track 14 on the conveyor chain 12a away to the conveyor chain 12b. According to FIG. 7 the gripper 15 has come to a standstill; the holding and detecting device 11 is closed again. The Leger clamping device 16 has set against the conveying direction 18 of the conveyor chains in motion, see. the movement arrow 21. A separating device, not shown, now separates the over the conveyor chains 12a, b located portion of the fiber layer 10, see. FIG. 8 , The laying separator 16 now moves in the opposite direction and carries the cut fiber bundle section 10a with it. The gripper 15 returns to its starting position, cf. the movement arrow 20 in FIG. 9 , and the carriage 3 is constantly building a new supply of fiber bundle 10, see. the movement arrow 22 in the FIGS. 7 to 9 , When the cut fiber bundle portion 10a has the same speed as the conveyor chains 12a, b, it is transferred from the leger clamp 16 to the fasteners located on the conveyor chains 12a, b. According to FIG. 10 the final state is achieved by the cut fiber bundle portion 10a has become part of the laid unidirectional fiber layer 17 and the gripper 15 again takes the front free end of the fiber bundle 10, which is available on the carriage 3 as an endless supply.

The advantage of the common, per se movable unit of creel 5 and spreading unit 6 is that the coil material, so the fibers 8, withdrawn at the same constant speed of the coil 7 and passed through the Spreizaggregat 6. This ensures a high, consistent quality of the produced band-shaped fiber bundle 10. This is provided in a constant amount per unit time on the carriage 3. However, the decrease by the gripper 15 is discontinuous, with phases of stoppage alternate with phases of movement in which the rate of decrease is also variable.

The compensation is made by the controlled movement of the carriage 3. By this is moved outward, see. the directional arrow 22 in FIG. 3 , is formed by the extended, located above the machine frame 1 fiber bundle 10 a reserve of the length L, which can be made available for an acceleration phase of the gripper 15 when the need of the gripper 15 exceeds the possibility of delivery of the creel 5. In the figures of the embodiment is the largest reserve according to the illustration of FIG. 4 in front; the extended fiber bundle has there the largest length L _max , while in the phase according to FIG. 6 this reserve is completely used up.

In FIG. 11 In qualitative terms, the relationship between the produced, the spent and the stored fiber share is shown. On the ordinate of FIG. 11 the fiber bundle is given as length in mm. FIG. 11 shows the laying of a single cut fiber bundle section 10a. The process begins at the time T0 and would repeat from the time T0 ', because in continuous operation, the filing of the fiber bundle sections 10a is also repeated continuously.

In FIG. 11 the straight line a represents the fiber bundle produced. Since this process takes place continuously, a must be a straight line. The fiber bundle required by the gripper 15, which at the same time corresponds to the stroke or the length of the gripper 15 when it is being applied, is designated by b. In a starting phase starting at T1, an accelerated movement of the A gripper 15, which is braked again with approach to the end position and goes to standstill at time T5. Obviously, the gripper 15 requires more fiber bundle 10 in its movement phase than the creel 8 located on the carriage 3 can provide. If the gripper 15 is from the time T5, however, on the other hand, the amount of fiber bundle 10 still produced must be temporarily stored, so that there are always constant conditions when the fibers 8 are pulled off and widened.

The compensation takes place by the movement of the carriage 3. The distance traveled by the carriage 3 path and thus also the length of the fiber bundle 10 stored thereby is in the illustration of FIG. 11 denoted by the letter c. A sloping course of the curve c means that the stock is reduced and the carriage 3 is moved towards the multi-axial machine. An increasing course of the curve c, however, means that the stock is built up and the carriage 3 moves away from the multi-axial machine. For a better understanding are in the FIGS. 3 to 7 the times T1 to T5 off FIG. 11 located. In addition, in the Figures 3 . 5 and 7 to 10, the respective present direction of movement of the carriage 3 indicated by the movement arrow 22. In the FIGS. 4 and 6 is the carriage 3 still; this corresponds to reversal points of both the carriage 3 and the curve c in FIG. 11 ,

The connection between the FIGS. 3 to 10 on the one hand and the FIG. 11 On the other hand, therefore, it can be clearly seen how the moving carriage 3 compensates for the discontinuous consumption of the fiber bundle 10 which is continuously made available on the carriage 3.

FIG. 11 is a representation of the speeds at which the fiber bundle 10 (straight line a) is produced and with which the gripper (curve b) and the carriage 3 (curve c) move.

For proper laying of the fiber bundle 10 thus a precisely controlled movement of the carriage 3 is required. This can be done by the machine control in connection with the rest Movements are effected. However, it is also conceivable a control by sensors which detect the respective position of the gripper and / or mechanical stresses in the fiber bundle.

List of reference numbers

1

Machine frame, side mounting

2

guide rails

3

movable unit, carriage

4

castors

5

creel

6

Spreizaggregat

8th

Fibers, coil material, carbon fibers

9

guide rollers

10

set of fibers

10a

cut fiber bundle section

11

Holding and detecting device

12a, b

conveyor chains

13

laying device

14

guideway

15

grab

16

Leger-clamping device

17

Fiber layer, unidirectional layer

18

Directional arrow for the conveying direction of the conveyor chains

19

Arrow for the laying direction of the fiber bundle

20

Motion arrow (gripper)

21

Movement arrow (Leger clamping device)

22

Motion arrow (carriage)

Claims (21)

Method of applying a band-shaped, strip-shaped or web-shaped unidirectional fiber layer to a support which moves in the longitudinal direction of the resulting fiber layer, with the following method steps forming a cooperative processing step: a) the individual fibers (8) are unwound from the coils (7) of a creel (5) and pass through a Spreizaggregat (6), whereby a fiber bundle (10) of parallel, widened fibers is formed; b) the fiber bundle (10) is fed to a laying device (13); c) the laying device (13) sets the fiber sheet (10) on the support, wherein the direction of the parallel widened fibers (8) from the longitudinal direction of the resulting ribbon, strip or web-shaped unidirectional fiber layer (17) deviates; d) the creel (5) is moved together with the Spreizaggregat (6) controlled as a common structural unit in such a way that the distance L between the common structural unit and the laying device (13) is selectively changed; e) the movement of the common structural unit takes place in accordance with the changing in the time unit requirement of the laying device (13) on fiber share (10). A method according to claim 1, characterized in that the laying device (13) deposits the fiber bundle (10) as endless material on the support. A method according to claim 1, characterized in that in the course of the same processing operation, the fiber bundle (10) on the way between the Spreizaggregat (6) and the laying device (13) into individual fiber bundle sections (10a) is separated, which are then stored one after the other by the laying device (13) on the support. Method according to one of claims 1 to 3, characterized in that the common structural unit in the form of a carriage (3) is guided back and forth on a movement path, which is located laterally next to the moving support in the area where the yarn sheet (10) is deposited, and connects to the laying direction (19). A method according to claim 4, characterized in that the carriage (3) moves on a rectilinear trajectory. A method for producing a strip, strip or web-shaped Multiaxialgeleges in which applied to a running in the longitudinal direction of the resulting Multiaxialgeleges endless conveyor successively two or more unidirectional fiber layers and finally interconnected, wherein at least one of the unidirectional fiber layers according to the method according to claims 1 to 5 is applied and serves as support the endless conveyor or an already deposited unidirectional fiber layer. Device for applying a band-, strip- or web-shaped unidirectional fiber layer on a moving in the longitudinal direction of the resulting fiber layer support, with a creel, in which the individual coils are combined to accommodate the applied individual fibers, with a trained as a continuous unit Spreizaggregat and with a laying device, wherein the unwound from the creel fibers leave the spreading unit as a parallel fiber bundle and the laying device are supplied, which deposits the fiber bundle on the support in a direction that of the Deviates longitudinal direction of the resulting band, strip or web-shaped unidirectional fiber layer, in particular for carrying out the method according to claims 1 to 5, characterized in that the creel (5) with the spreading unit (6) is combined to form a structural unit, in the supply direction of the fiber bundle (10) to the laying device (13) controlled is movable and serves as a thread store for the laying device (13). Device according to claim 7, characterized in that the common unit as a carriage (3) is formed, on which the creel (5) and the Spreizaggregat (6) are located. Device according to claim 8, characterized in that the carriage (3) is movably guided on a linear guideway, which in the laying direction (19) of the fiber bundle (10) is mounted laterally next to the moving support in the area where the Fiber bundle (10) is applied. Device according to claim 9, characterized in that the movement of the carriage (3) takes place in changing directions and at different speeds by a motor drive, which takes place in accordance with the changing in the unit time requirement of the laying unit (13) on the thread sheet (10). Device according to one of claims 7 to 10, characterized by a laying unit for storing the yarn sheet as continuous material. Device according to one of claims 7 to 10, characterized by a laying device (13) for depositing the yarn sheet (10) in cut individual ribbon-shaped yarn sheet sections (10a). Device according to one of claims 7 to 12, characterized in that the support by two parallel, spaced apart driven conveyor chains (12a, 12b) provided with holding means for the laid-out yarn sheet (s) (10a). Multiaxial machine for producing a strip, strip or web-shaped Multiaxialgeleges, with at least two devices by the succession unidirectional fiber layers are applied to a moving in the longitudinal direction of the resulting Multiaxialgeleges endless conveyor, forming at least one of the means for applying the unidirectional fiber layer according to one of Claims 6 to 12. Multiaxial machine according to claim 14, characterized in that in the direction of movement of the endless conveyor successively differently configured means for applying the unidirectional fiber layers are arranged so that in alternating order broadened and not broadened fiber bundles are stored as continuous material or in cut fiber bundle sections to unidirectional fiber layers , Method for producing a fiber fabric, in which at least the fibers forming the weft threads in the form of a collimated fiber bundle are fed to the weft insertion device of a weaving machine, characterized by the following method steps forming an associated processing operation: a) the individual fibers of the starting material are unwound from the coils of a creel and go through a Spreizaggregat; b) the resulting parallel fiber bundle of widened fibers is fed to the weft insertion device; c) the creel is moved together with the Spreizaggregat controlled as a common structural unit in such a way that the distance between the common structural unit and the means for weft insertion is selectively changed; d) the movement of the common structural unit takes place in accordance with the changing demand in the time unit of yarn sheet, which exists in the institution for weft insertion. A method according to claim 16, characterized in that the common structural unit is guided in the form of a carriage on a movement path back and forth, which connects laterally to the means for weft insertion. A method according to claim 17, characterized in that the carriage moves on a linear trajectory. Weaving machine for producing a fiber fabric, in which at least the fibers forming the weft threads are introduced in the form of a parallel fiber bundle in the shed formed by the warp yarns, with a device for weft insertion, in particular for performing the method according to one of claims 16 to 18, characterized characterized in that the creel is combined with a spreading unit for widening the unwound from the creel firing fibers to a common structural unit which is controlled in the feed direction of the fiber bundle to the weft insertion device movable and serves as a thread store for these. Device according to claim 19, characterized in that the common structural unit is designed as a carriage, on which the creel and the spreading unit are located. Device according to claim 20, characterized in that the carriage is movably guided on a linear guideway, which is mounted in the weft direction of the fiber bundle extending laterally next to the resulting weft insertion device.

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