DE102007024124B3 - Multi-axial machine for laying up composite fibres has first feed station for endless fibers and second feed station for pre-cut ribbon - Google Patents

Abstract

A multi-axial machine for laying up composite fibres has two or more fibre layer feed stations (4, 5). The first fibre layer is delivered from a first feed station (4) as a continuous warp or a continual single fibre (7). The threads are drawn from frame (8) mounted reels (9). The second layer of ribbon fibres are pre-cut to length (17) and drawn from a second feed station (5) by a layer/clamp assembly (19). The multi-axial machine transport chains (2) have holders for both type of fibre. The layers of finished multi-axial composite materials are linked at a sewing station (6).

Description

• a) es sind zwei im Abstand voneinander befindliche angetriebene Transportketten vorgesehen, deren Transportrichtung in der Längsrichtung des entstehenden multiaxialen Fadengeleges verläuft;
• b) an den Transportketten sind Befestigungsmittel zum vorübergehenden randseitigen Fixieren von bereits abgelegten, sich zwischen den Transportketten erstreckenden Fadenlagen angebracht;
• c) in der Transportrichtung der Transportketten sind hintereinander mehrere Zufuhrstationen für je eine Fadenlage angeordnet.

The invention relates to a Multiaxialmaschine for presenting band, strip or web-shaped multiaxial thread layers, which are composed of individual superimposed filament layers, with the following features contained in claim 1:

• a) there are provided two spaced-apart driven transport chains, the transport direction extends in the longitudinal direction of the resulting multiaxial Fadengeleges;
• b) attached to the transport chains fastening means for temporary edge fixing of already deposited, extending between the transport chains thread layers;
• c) in the transport direction of the transport chains several feed stations for one thread layer are arranged one behind the other.

such Multiaxial machines belong to the state of the art. As a rule, the transport chains lead here the presented multiaxial scrim to a connection station, For example, a warp knitting machine in which the individual thread layers before be connected to each other their further processing.

The multiaxial filament scratches made with it have great significance in the production of fiber composites. Here are the incorporated multiaxial scrims as reinforcement in a matrix, the polymeric systems, especially polyester and epoxy resins, stand in the foreground. For the individual thread layers, the one above the other are filaments or fibers of carbon, glass, Ceramics, but also synthetic fibers such as aramid fibers or polyamide fibers in question. For The strings or fibers is also the name "cable" usual; they are made up of individual filaments and can become not only in terms of material, but also in terms of their diameter and the number of filaments that compose them, differ significantly from each other. Due to this, arise different mechanical properties already in the Laying a thread layer and their attachment to the transport chains the multi-axial machine considered Need to become.

The has very different known embodiments of the feed stations for the individual Thread layers and the fastener guided by the thread layers temporarily at the transport chains fixed at the edge.

So it is from the DE 197 26 831 C5 It is known to construct the feed stations of a multiaxial machine as movable feed portals, on each of which a thread feeder is movably guided. The suture layer is thereby controlled three-dimensionally movable. The drive of the thread leveler is independent of the drive of the transport chains driven by servo motors linear elements. To form a thread layer, the threads are withdrawn from a large number of individual coils, brought together at the thread guide and stored in the form of a parallel (unidirectional) endless group of threads in a largely arbitrary trajectory between the longitudinal conveyors. The laying usually takes place continuously. The threads of a single thread layer are stretched between the transport chains and optionally deposited on the already existing thread layers.

For temporary fixing of the threads are on the transport chains known Multiaxialmaschinen on the type DE 197 26 831 C5 Arranged rows of needles, pins or hooks, which are inclined obliquely outwards from the side of the resulting Multiaxialgeleges away. When the yarn guide reaches the transport chains laterally, the threads of the yarn sheet guided by this yarn guide are guided around the inclined pins and thus hooked into them. This movement is assisted by a movable offset rake, which in this case is attached to the feed portal and moved along with it. In the conveying direction of the transport chains in succession, several feed stations are provided, each of which serves to deposit one thread layer in the form of a group of yarns. There is always a continuous laying place, and the yarn sheets of the individual thread layers are successively wrapped around the same inclined pins and hooked into these, where they are then clamped lying over each other. The needles, pins or hooks must therefore be made relatively solid and stable.

With the portal system according to the DE 197 26 831 C5 The threads of a group of threads can be stored in any, even spatial trajectories, and it can be used to produce pre-assembled multiaxial Garngelege that are optimally adapted to the application in the composite material produced by the threads are arranged and oriented according to the entering under load force flow.

The prior art according to the DE 197 26 831 C5 regarding the laying of endless yarn sheets is considered in claim 1 with the features d and e.

Another training of supply stations goes out of the DE 102 14 140 A1 out. In this case, the individual thread layers are formed by being stored as thread groups, which consist of a variety consist of adjacent threads and are cut to form band-shaped sections. These cut-to-length sections are fastened with their two narrow ends by clamping devices, which are attached to the transport chains. For each end of the sections, ie at each of the two transport chains, several clamping devices are required, which interact in cycles. The reason for this is that the sections are formed by a device on the multi-axial machine itself, by withdrawing the band-shaped material from a supply and a section is separated when it lies over the transport chains. In this case, both the end located at the stock and the portion already located above the transport chains must be held in a clamping manner. Furthermore, the clamping devices that hold the already stored thread layers to the transport chains must be reopened when the next thread layer is added and must also be held. For this process of additional opening and closing additional clamping devices or hold-down are required, which hold the already stored thread layers until the newly added thread layer is added and held together with the others safely.

Also in a multi-axial machine in the manner of DE 102 14 140 A1 can be assigned to the clamping devices needle rows, which are also attached to the transport chains and are located on the side facing the scrim adjacent to the clamping devices. These rows of needles have no holding function, but prevent the clamping devices cause a lane between the threads of the thread layer formed from the cut sections. For this purpose, the needles of the row of needles have a sufficient height so that they can pierce the deposited band-shaped sections. The needles are perpendicular to the plane of the resulting multiaxial scrim and must be relatively fine for optimal performance.

The feeding stations for multi-axial machines in the manner of DE 102 14 140 A1 are thus made relatively expensive, and their various components must be very carefully matched, if a long-term reliable continuous operation should be guaranteed. Multiaxial machines of this type must be used if the multiaxial fabric cover to be produced consists of layers of thread that can not be laid down in a continuous process and also can not be fixed by means of needles, pins or hooks on the longitudinal conveyors.

Cost constraints lead to this procedure. For example, in commercially available embodiments, the diameter of the individual filaments varies relatively small between 5 and 7 μm in the particularly versatile carbon fibers. The filaments or fibers can be produced with 1000 to 480 000 (K number from 1 to 480) filaments, thus as very thin to very thick fibers. The weight-related price for thin fibers is much higher than for thick fibers. However, because of the better possibility of draping, that is to say of improving the arrangement in the later-produced component of a fiber composite material, thin fibers are preferred. In order to reduce the production costs, therefore, relatively thick carbon fibers with 12,000 filaments and more (K number greater than 12) are widened by rolling and processed into thin, closed-surface strips ( EP 972 102 B1 ). The bands can be obtained by special measures increased cross-cohesion, which improves their stability during further processing.

These bands are also no longer on multi-axial machines of the type mentioned in accordance with the DE 197 26 831 C5 Lay in a continuous process and guide around for attachment around needles, pins or hooks. There is a risk that the threads of the widened bands break when they are wrapped around the needles, pins or hooks. Furthermore, there is the danger of lane formation in the cut-to-length bands. If these are wrapped around the needles, pins or hooks and their installation begins in the opposite direction, because it is not possible to reach so soon after the deflection again a flat-spreading band with its full width. In this case, thus multi-axial machines are from the DE 102 14 140 A1 known type needed.

Of the These known machines corresponding prior art is in the claim 1 with the features f and g considered.

With the increasing spread of the fiber composite construction, users also demand multiaxial filament scrims in which the individual filament layers consist of filaments of different materials. Hybrid thread scrims can be produced with the well-known multiaxial machines as long as the threads of the individual thread layers can be deposited in the same way and fastened to the transport chains first thread layer can only be stored in the form of cut tape-shaped sections with clamping attachment to the Transporttketten, for a second thread layer, however, only a continuous installation by attachment to needle, pin or hook rows in question, so there is nothing left, as, a To produce such multiaxial scrim in succession on different machines in several steps. This is not only uneconomical because of the associated transport processes, but also requires additional measures for fixing a thread layer when it is to be moved from a first to a second multi-axial machine. In particular, in a multi-axial thread scrim with a larger number of thread layers in which the threads should be greatly different from thread layer to thread layer in changing order, working with the known multiaxial machines can not be economical.

At a simple appearing example illustrates the problem Be prepared: A scrim made of two layers of thread. The first and for example lower layer should be close together lying carbon threads are of small thickness, unidirectional at an angle from 45 ° to longitudinal direction run the thread fabric. On the first thread layer is a second Thread layer are attached, which consists of a single threaded reinforcement thread exists, wherein the deposited Armierungsfäden have distances from each other, and the direction of the carbon threads cross. The reinforcing thread should be made of glass and also very thin be, at most about 68 tex, because the finished scrims are extremely drapable, d. H. during the manufacture of the fiber composite component very much deformed must be without forming cracks.

The use of carbon threads of the required fineness for the first thread layer eliminates cost reasons. Only the well-known technique of widening thicker carbon filaments to ribbons comes into question. For example, carbon filaments of 12 K (12,000 filaments per filament) can be rolled on strips of 5 mm width, which have a basis weight of 150 g / m ² . These can just be laid as endless belts, which are wrapped around the needles of the transport chains. For mass production, the carbon material of 12 K is still too expensive. The aim is to use the much cheaper material of up to 400 K, which can also be widened to a basis weight of 150 g / m ² . It creates strips of about 180 mm wide, which can no longer be laid by endless laying and attachment to needles.

The bands have to rather filed as cut pieces and fastened in clamping devices. For this procedure also speaks, that while smaller amounts of waste of expensive carbon material incurred as in the usual endless laying. Just as well could in this example, however, the reinforcing thread and the lower Thread layer and the position of the carbon threads be the upper thread layer.

The known multiaxial machines for the laying down of these wide, thin, made of carbon ribbons but are not for storing thin glass threads suitable. It has been shown that the clamping devices thin glass fibers in addition to the carbon ribbons not sufficiently reliable hold. Rather, there is a risk that the glass threads their Lose tension before being connected to the carbon layer are. Here, especially the peculiarity of the glass filaments makes disturbing, to twist when the holding voltage decreases. That may be due therefore, that the glass threads from the supply spools over Be deducted head, because that is easier and more economical as a directional unwinding from the supply spools. For the deposit the reinforcing threads Thus, only the endless laying with attachment to needles or Pens that are relatively stable and have to be fat and at the carbon layer would lead to a lane formation.

at a multiaxial hybrid netting with a large number of individual thread layers of different threads multiply the here indicated difficulties even further.

Of the The invention is therefore based on the object, a multi-axial machine of the type mentioned above with the features a to c for the production To create multiaxial hybrid thread scrims, their individual thread layers in their structure and thickness and in the material of the threads at least are partially different, with an economical, low-waste Working method leads to a high-quality end product whose properties for Further processing are versatile.

The solution This object is achieved with the entirety of the features of the claim 1.

Surprisingly, in the multiaxial machine according to the invention, the functions of the two types of machines according to the prior art are combined for the first time in a single multi-axial machine. For this purpose, it was not only necessary to provide in the direction of transport chains behind each other several feed stations for one thread layer, of which at least one is set up for the endless laying of yarn sheets or filaments with attachment to needle, pin or hook rows, while at least one other for feeding of cut band-shaped sections with their clamping attachment to the longitudinal conveyors is used. Above all, namely, the fasteners had to be set up on the transport chains for the attachment of both types of thread layers, which initially seemed insoluble. It was to be expected that one type of attachment disturbs the other closes.

This is based on the application example described above in Details are explained: The thin ones glass threads from at most about 68 tex can be with the known multi-axial machines on best to lay around needles in a direction to the direction of transport chains vertical plane at an angle outward are inclined. As the optimal angle of inclination of the needles against the vertical direction are about 37.5 °, also the needles are relatively thick be. If such needles according to the invention proposal in addition to the clamping devices for arranged the cut band-shaped sections, so it is expected that the needles interfere with the filing and lead in the deposited sands to an undesirable draft. at the multi-axial machines for filing yarn sheets in the form of cut to length band-shaped sections Although the arrangement of rows of needles has already been proposed which are located next to the clamping devices. You should but there just a caused by the clamping devices alley prevent in the yarn sheets and are thin for this purpose and are perpendicular to the formed by the transport chains Plane on which the resulting multiaxial filament scrim is deposited becomes.

It was not to be expected that these conflicting demands at a common arrangement of the two different fastening means satisfactorily fulfilled can be. Rather, the different design of the needles on the two Types of fasteners prevented the skilled artisan, a common arrangement at all to consider, especially the formation of the needle, pen and Rows of hooks or the whole Clamping devices for already complicated enough. Surprisingly, however demonstrated that the needle, pin or hook rows meet the requirements Both types of storage and fasteners can meet if a vote is made on the fiber layers to be deposited. A concrete one Specification of numerical values for all relevant cases is not possible. It must be based on the known values for needle thickness, formation and tilt a vote according to the structure, thickness and the material to be deposited thread layer are made, if necessary due to attempts. With the decisive indication of direction However, the invention is the person skilled in the way to a successful Indicated procedure.

further developments the multiaxial machine according to the invention are in the backward claims specified.

The Invention will follow explained in more detail with reference to exemplary embodiments illustrated in drawings. In The drawings show the following:

1 is a schematic overall view of a multi-axial machine according to the invention.

2 shows a partial cross section through the multi-axial according to 1 in the area of a feeding station for endless laying of thread layers.

3 is one of the 2 Corresponding partial cross-section with modified fastening means for endlessly laid yarn sheets or monofilaments.

4 Represents one 2 and 3 corresponding partial cross section in the region of a feed station of thread layers, which are laid as cut to length, band-shaped sections.

The multiaxial machine according to the invention according to 1 consists of a machine frame 1 , where two endless powered transport chains 2 are arranged. The transport chains 2 move synchronously in the direction indicated by an arrow transport direction 3 , which is also the longitudinal direction of the resulting band, strip or web-shaped multiaxial yarn layer. The machine frame is a first feed station 4 , a second feeder station 5 and a connection station 6 assigned. Through the two feed stations 4 and 5 Thread layers are stored while the transport chains 2 move.

The first feed station 4 is used for filing a thread layer, which consists of a bevy of endless monofilaments 7 or even consists of a single endless monofilament. In the example shown, there are eight endless monofilaments 7 provided from a creel 8th with eight coils 9 subtracted from. A feeder portal is used for laying 10 with a suture layer 11 , The feeder portal 10 is in the transport direction 3 the transport chains 2 but independently controlled by these moveable. The thread-laying machine 11 is at the feeder portal 10 guided in the longitudinal direction movable controlled. For the thread leveler 11 this results in the by the double directional arrow 12 illustrated mobility.

For attachment to the transport chains 2 become the endless individual threads 7 individually or in groups around needles 13 lying around, attached to the transport chains 2 are located ( 2 ). Also hook 35 that are attached to the transport chains 2 are suitable ( 3 ). The process of laying can be done by an offset mechanism 15 , usually in the form of offset rakes, are supported ( 2 and 3 ). Details are the DE 197 26 831 C5 refer to. In the resulting multiaxial Thread scrims form the endless monofilaments 7 the lower and first thread layer with the arrow 16 indicated direction opposite to the transport direction 3 ,

The second feed station 5 is adapted to a thread layer in the form of cut-to-length band-shaped sections 17 take off and at the transport chains 2 to fix. Although the strip material is indeed as endless material from a supply roll 18 withdrawn; but it is by a separator which can be attached to the multi-axial machine, prior to its attachment to the transport chains 2 in band-shaped sections 17 separated. The band-shaped sections 17 form a closed surface of parallel monofilaments. You can get this by special measures increased cross-cohesion. When laying, they are held by special grippers and Leger at their ends so clamped that the band-shaped parallel arrangement of their individual threads is always maintained. Details are the DE 102 14 140 A1 refer to.

1 shows only schematically indicated a Leger-clamping device 19 , which the band-shaped sections 17 horizontally above the transport chains 2 moves and lastly downwards to clamp devices 20 passes on the transport chains 2 are attached. The Leger clamping device 19 must once in the transverse direction to the transport direction 3 the transport chains 2 be moved until a band-shaped section to be laid 17 with its end areas above the transport chains 2 located. In addition, there is also a movement in the transport direction 3 and contrary required. In its initial position, the Leger clamping device detects 19 the next band-shaped section to be laid 17 and is initially opposite to the transport direction 3 accelerates until it finally synchronizes with the transport chains for a small period of time 2 emotional. In this period, the band-shaped section 17 to the clamping devices 20 Passing on the transport chains 2 are located. The unloaded Leger clamping device then moves in idle stroke in the conveying direction 3 back to their original position and takes over the next to be laid band-shaped section 17 ,

In the resulting multiaxial Fadengelege form the band-shaped sections 17 , the gapless side by side in the direction of the arrow 21 run, the middle and second thread layer.

In the connection station 6 become the only loosely superimposed thread layers of the endless individual threads 7 and the band-shaped sections 17 finally connected. In the illustrated embodiment, the connection is made by sewing, so that the finished multiaxial Fadengelege after leaving the connection station 6 with longitudinal seams 22 is provided. It is on a roll of goods 23 stored before it is sent to its further use. But connecting the individual layers of thread can also be done by a warp knitting machine or by a calender.

In 2 is a cross section through the multi-axial machine according to the invention in the region of one of the transport chains 2 in the first feeder station 4 shown. The resulting, not shown multiaxial Fadengelege located on the inside of the multi-axial machine, in this illustration on the left side of the drawing. One with the machine frame 1 connected console 14 is with rails 24 provided on which the transport chains 2 to run. Outward-pointing extensions 25 that are attached to the transport chains 2 are located, bear rolling bearings 26 , These serve to transmit tensile forces exerted by the already attached thread layers and to relieve the transport chains 2 over the console 14 in the machine frame 1 to get redirected.

With the transport chain 2 is further connected a series of paired clamps. Here is a lower clamp 27 immovable at the transport chain 2 attached while an upper clamp 28 Although also with the transport chain 2 connected, but this and the lower clamp 27 is displaceable in the transverse direction. compression springs 29 Press the upper clamp plates 28 towards the inside of the multiaxial machine. The lower and upper clamping plate 27 . 28 each have an upwardly pointing angled extension 27a . 28a on which are elastic profiles 31 are located.

In this way, the upper and lower clamping plate have 27 . 28 the function of a pliers, which is the core of the clamping device 20 forms. Along the transport chains 2 are on the machine frame 1 in the area of the second feed station 5 not shown backdrops elements arranged, the upper clamping plate 28 Pull outward and thus the pliers against the force of the compression spring 29 open when the transport chains 2 pass by the scenery elements, cf. 4 , The clamping device 20 can then turn down the bent ends of a band-shaped section 17 pick up and hold firmly in place when the transport chains 2 have gone past the backdrop elements and the compression springs 29 the upper clamping plates 28 push back to the inside of the multiaxial machine.

The upwardly angled extension 27a the lower clamping plate 27 wears a socket 30 . which the row of needles 13 receives. These needles 13 Stand vertically on the through the transport chains 2 formed level and extend in a continuous row over the entire length of the two transport chains. Only in the area of the first feeder station 4 , the 2 on the other hand, are an offset mechanism 15 , mostly offset rakes, and hold-downs 32 arranged. The feeder portal 10 and the thread-laying machine 11 lay, as already described, in this section of the multi-axial machine a thread layer of endless monofilaments 7 on the transport chains 2 from. The endless threads 7 have to go around the needles 13 are placed around and are then attached to this. The attachment process is with the change of direction of the thread leveler 11 connected. The offset mechanism takes on the required offset 15 temporarily through the inclined needles 13 laid, in a group or on their own 7 while the hold-down 32 holds the thread material in the needle alley. This procedure is known in principle from the prior art, but must in the present case, the series of needles 13 at the same time avoid the formation of lanes when in the area of the second feed station 5 the thread layer is applied in the form of cut tape-shaped sections.

3 shows one of the 2 corresponding representation, wherein the execution of the transport chain 2 located clamping device 20 remained unchanged. Changed is the execution of the version 33 who now side by side a row with needles 34 and a series of hooks 35 carries, whose upper ends are bent downwards. The needles 34 stand perpendicular to the through the two transport chains 2 formed level. The two rows run parallel to each other over the entire length of the transport chains 2 , where the perpendicular needles 34 on the inner side of the transport chains 2 located facing the resulting multiaxial filament scrim. The hooks 35 serve as a retaining hook, which the deflection and holding forces of the endless individual threads 7 take up. The needles 34 On the other hand, they only serve to fix the individual threads 7 ,

So that's the catch 35 Withstand the load, they have no round but a flattened cross-section. The mutually parallel, flattened sides run in the laying direction of the endless yarn sheets or individual threads.

The clamping devices 20 are activated when the transport chains 2 the second feed station 5 run through. This phase of the process is in 4 shown. The already mentioned backdrop elements exert a pulling action on holders 36 out, which are rolling bearings 37 are located. These act via plungers 38 on the upper clamping plates 28 and pull them against the force of the springs 29 in their open position.

Meanwhile, the Leger clamping device has 19 a band-shaped section 17 on the versions 30 stored. It gets there from one to the clamping device 20 adapted hold down 39 clamped. So that the ends of the band-shaped section 17 between the elastic profiles 31 the clamping plates 27 . 28 can be introduced is a sword 40 provided in the direction of the arrow 41 can be moved up and down. In the controlled downward movement of the sword 40 become the ends of the band-shaped section 17 bent downwards and between the elastic profiles 31 inserted.

As the movement progresses, the transport chains leave 2 the range of backdrop elements, the compression springs 29 move the upper clamps 28 in its closed position, and at the same time moves the sword 40 up. The filed band-shaped section 17 is now between the clamping plates 27 . 28 clamped down, and the hold-down 39 can be solved. In the same way can be moved if another layer of band-shaped sections to be placed on already deposited band-shaped sections; because the downholder 39 allows the clamps 27 . 28 can be solved without the already deposited band-shaped sections 7 to loosen or slip.

1

machine frame

2

transport chains

3

transport direction

4

first feeding station

5

second feeding station

6

connecting station

7

monofilaments

8th

creel

9

Do the washing up

10

supply portal

11

thread layer

12

duplicate arrow

13

needles arranged inclined

14

console

15

offset mechanism

16

Arrow for the direction of the endless monofilaments 7

17

band-shaped sections

18

supply roll

19

Leger-clamping device

20

clamping device

21

arrow for direction the band-shaped sections

22

longitudinal seams

23

Been role

24

runner

25

extension

26

roller bearing

27

lower clamp

27a

angled extension

28

upper clamp

28a

angled extension

29

compression spring

30

version

31

elastic profile

32

Stripper plate (Monofilaments)

33

version

34

needles arranged vertically

35

hook

36

holder

37

roller bearing

38

Pressure piece

39

Stripper plate (Clamp)

40

sword

41

arrow

Claims (6)

Multiaxial machine for the production of band, strip or web-shaped multiaxial thread layers, which are constructed from individual superimposed layers of threads, with the following features: a) there are two spaced-apart driven transport chains (FIG. 2 ), whose transport direction ( 3 ) runs in the longitudinal direction of the resulting multiaxial Fadengeleges; b) at the transport chains ( 2 ) are fastening means for temporary marginal fixation of already deposited, between the transport chains ( 2 ) extending thread layers; c) in the transport direction ( 3 ) of the transport chains ( 2 ) are consecutively several feed stations ( 4 . 5 ) arranged for one thread layer; d) at least one ( 4 ) of the supply stations ( 4 . 5 ) is a feeder portal ( 10 ) with a suture layer ( 11 ) is formed, which is driven independently movable in several directions and at least one thread layer in the form of an endless yarn sheet or an endless monofilament ( 7 ) on the transport chains ( 2 ) drops; e) as a fastener for the endless group of threads or the endless monofilaments ( 7 ) serve needle, pin or hook rows, around which the endless yarn bundles or the endless monofilaments ( 7 ) are laid around; f) at least one further feeding station ( 5 ) is adapted to a thread layer in the form of already cut to length ribbon-shaped sections ( 17 ), which consist of a plurality of closely adjacent threads, on the transport chains ( 2 ) to remove; g) as a fastening means for the cut-to-length band-shaped sections ( 17 ) serve clamping devices ( 20 ), which the ends of the deposited pieces ( 17 ) gripping; h) the rows of needles, pins or hooks are located next to the clamping devices ( 20 ) in the edge region of the transport chains ( 2 ), which faces the resulting multiaxial scrim and are designed such that they at the same time as a fastener for the endless yarn sheets or monofilaments ( 7 ) and when clamping the cut-to-length band-shaped sections ( 17 ) avoid a lane between their individual threads. Multiaxial machine according to claim 1 with two feed stations for producing a multiaxial yarn layer of two yarn layers, one yarn layer being stabilized by reinforcing yarns forming the other yarn layer, having the following features: a) the one feed station serves to deposit a yarn layer in Form of cut-to-length band-shaped sections which are in the transport chains ( 2 ) located clamping devices ( 20 ) are held; b) the other feed station is formed as a feed portal with a suture layer and serves for the endless storage of a single armor thread, wherein the armor thread is wrapped around a row of needles that are located on each transport chain ( 2 ) is located; c) the needles ( 13 ) of the rows of needles are in a direction of travel of the transport chain ( 2 ) vertical plane obliquely outwards in the direction of the clamping devices ( 20 ) inclined. Multiaxial machine according to claim 2 for the production a multiaxial thread fabric, in which the cut strip-shaped sections of too thin bands widened carbon threads consist of up to 480 K and as reinforcing threads glass threads with a thickness of at most 68 tex are provided, with the feature that the angle of inclination opposite the needles the vertical direction is in the range of 5 ° to 25 °. Multiaxial machine according to one of Claims 1 to 3, having the following features: a) in the edge region of each transport chain ( 2 ) is a series of needles ( 34 ) arranged perpendicular to that through the transport chains ( 2 ) are formed, on which the resulting multiaxial Fadengelege is deposited; b) at each transport chain ( 2 ) is laterally between the row of vertical needles ( 34 ) and the series of clamping devices ( 20 ) a series of hooks ( 35 ) arranged with bent down upper ends; c) the hooks ( 35 ) are at least with their upper portion obliquely in the direction of the clamping devices ( 20 ) inclined towards; d) the filing of the endless yarn bundles or the endless filaments ( 7 ) is designed in such a way that it can be temporarily fixed around the hooks ( 35 ) are laid around. Multiaxial machine according to Claim 4, in which the hooks ( 35 ) are laterally thin ground. Multiaxial machine according to one of Claims 1 to 3, having the following features: a) in the edge region of each transport chain ( 2 ) is arranged a first series of needles, which are perpendicular to the plane formed by the longitudinal conveyor on which the resulting multiaxial Fadengelege is deposited; b) at each transport chain ( 2 ), a second row of needles is arranged laterally between the first row of needles and the row of clamping devices; c) the needles of the second row are inclined at an angle in the direction of the clamping devices; d) the filing of the endless filament bundles or of the endless individual filaments is designed such that they are placed around the needles of the second row for the purpose of temporary marginal fixing.