EP2905366B1 - Modular element for powering and holding braiding lace and braiding device - Google Patents

Description

The invention relates to a braiding device with modular elements for driving and holding braided bobbins.

Modular constructed braiding systems in which braids are guided to form a braid on predetermined paths, for example, are made DE 691 31 656 T2 known. The braiding system described therein comprises a plurality of track modules and driver modules.

The track modules, when lined up appropriately, provide pathways in a plate through recesses for the braiding bobbins with which spool elements are engaged. The driver modules are disposed below the track modules and engage a downwardly projecting projection of the coil element. By rotation of the driver modules, the projections of the coil elements are respectively transferred to the next driver module and thus the coil elements forming braided bobbins moved forward, they follow the predetermined paths of the track modules predetermined trajectory.

The described braiding device can be adapted by the modular construction in one plane to different geometries that are to be realized in the braid to be produced. However, the prior art braiding apparatus has weak points at the locations where the braiding beaters engage with the track and driver modules because the parts are subject to wear and contamination from the braiding apparatus. Furthermore, the bobbin tracks can be set relatively flexible, however, are still limited by the paths specified on the track modules.

From the US 1 103 181 A is a braiding device with a fixed structure and with a plurality of impellers known, on which braided bobbins along fixed predetermined paths are movable. The braided beaters are held by means of electromagnets on the impellers, which are supplied via sliding contacts with energy.

From the US Pat. No. 1,827,715 A is a braiding device comparable to the US 1 103 191 A known, wherein the braided bobbins are held by means of claws on the impellers, which are controlled by cam drives.

From the DE 10 2012 205 906 A1 is a modular braiding known, wherein the braided bobbins are guided in guideways with points controls.

From the US 5 067 525 A a modular braiding device is known in which an impeller each provides a guideway for an adjacent impeller and the braided bobbin are held by simultaneous attack on two vanes.

The object of the invention is to propose an improved braiding device with modular elements for driving and holding braided bobbins, which can overcome the above-mentioned disadvantages.

This object is achieved with a braiding device with the features of claim 1.

Advantageous embodiments of the invention are the subject of the dependent claims.

According to a first aspect, the invention provides a braiding device for braiding semifinished fiber products, comprising a plurality of modular elements for driving and holding braiding bobbins, the module elements each having at least one base element which is rotatable about a rotation axis and at least one retaining element for releasably holding at least a braided bobbin is offset from the axis of rotation, and wherein the module elements are arranged such that at least a first holding element of a first module element Wickertböppel can pass to a second holding element of a second module element, wherein the holding element is formed integrally with the base member, wherein the braided bobbin by means of an electromagnet are magnetically fixed to the impellers, wherein a control device for controlling the module elements is provided such that a multi-dimensional mesh is formed, and wherein the Steuerei tion has a memory unit in which are stored to form predetermined semi-finished fiber forms predetermined bobbin tracks.

It is preferable that the holding member is formed by a holding means having a magnetic means for magnetically attracting and repelling braiding bobbins.

It is preferable that the magnet device is formed by the electromagnet.

It is preferred that the module elements each comprise a control element for controlling the module element.

It is preferable that the control is configured to control a rotational speed of the base member and a holding force acting on a braiding beater at a predetermined rotational angle of the base member.

It is preferred that the module elements each have at least four holding elements, which are arranged uniformly on an outer circumference of the base element.

It is preferred that braided bobbins are provided, wherein the braided bobbin has at least one magnetic region for interacting with the retaining element of the module elements.

It is preferred that the modular elements for braiding planar semi-finished fiber products are arranged in series and / or parallel to each other.

It is preferred that a plurality of modular elements for braiding three-dimensional semi-finished fiber products in a plane are arranged in series with each other and that a plurality of these series are arranged parallel to each other.

It is preferred that the modular elements for braiding tubular fiber semi-finished products are arranged in a circle.

It is preferred that a waiting device is provided for forming at least one parking position for at least one braiding bobbin.

The braiding device according to the invention comprises a plurality of modular elements for driving and holding braided bobbins on a predetermined bobbin track, each having at least one base member rotatable about an axis and at least one retaining member integrally formed with the base member, the retaining member for releasably holding at least one braiding bobbin from the axis of rotation is formed offset.

In operation, the module element rotates about the axis of rotation, wherein the at least one holding element rotates with the base member about the common axis of rotation. The drive is advantageously carried out via, for example, an im Range of rotation axis arranged motor. During rotation about this common axis, the holding element at any desired time and thus at any desired position on the orbit of the holding element an incoming braiding bobbin hold, take to a desired position on the orbit of the holding member about the common axis of rotation and release there again. The drive of the entrained braided bobbin takes place by the rotation of the base member, which entrains the integrally formed holding element in the orbit. The braided bobbin can thus be brought on the orbit of the holding element flexible from a receiving position to a dispensing position, without being limited by predetermined paths.

In particular, the rotatable base element has a wheel, wherein the holding element for receiving a braided bobbin is arranged on an outer circumference of the wheel.

Thus, it is preferably possible to arrange a plurality of holding elements on the base element over the entire circumference of 360 °, so that advantageously also several braiding bobbins can be driven and transported simultaneously by the module element.

If the retaining element is additionally advantageously designed, for example, with a notch, a region is available for holding braided bobbins, which region can be brought into engagement with a corresponding region of a braiding bobbin so as to enable a preferably secure holding of the braiding bobbins.

In a preferred embodiment, the holding element has a holding device with a magnetic device, in particular with an electromagnet, for magnetically attracting and repelling braided bobbins. For example, at least one electromagnet is arranged in the interior of the wheel, preferably in the region of the notch. Particularly preferred is the electromagnet by a Coil formed, which is associated with a motor which drives the rotational movement of the base member.

The invention provides for magnetic attraction and repulsion between a magnet device and a braided beater; Thus, it can be dispensed with for intercepting, holding and further transporting braided bobbins on a mechanical intervention in a track element commonly used in the art, whereby wear and tear of the module element or the braided bobbin can be greatly minimized.

In addition to a magnetic device, a suction and / or blow-off mechanism can be provided as a holding device. Instead of a notch, a wing extending away from the base element can also be provided as a retaining element.

Further preferably, a control element for controlling the module element is provided, in particular a control element for controlling a rotational speed of the base element and a holding force which acts on a braiding bobbin at a predetermined angle of rotation of the base element.

By such a control, a braided bobbin may be preferably brought to a predetermined angular position of the holding member at a predetermined speed by the holding force is preferably driven so high that the braiding bobbin is held on the holding member. If the predetermined angular position is then reached, the holding force is advantageously reduced so far, for example by switching off an electromagnet, that the braiding bobbin is no longer held on the holding element and that it can preferably leave the module element at the desired position.

Particularly preferably, the module element has at least four holding elements, which are arranged in a particularly preferred embodiment uniformly on an outer periphery of the base member.

Thus, four braiding bobbins can advantageously be simultaneously driven, held and transported by the module element.

However, it is also possible to provide more than four holding elements on a module element. For example, this is advantageous if the relevant module element is to be used as a parking position as described later. Thus, in this case, advantageously, a multiplicity of braiding bobbins can be picked up by the module element at the same time.

An advantageous combination of at least one module element as described above and at least one braiding bobbin has a braided bobbin having at least one magnetic region for interacting with the holding element of the module element.

The magnetic region may, for example, advantageously be formed by a rod projection. Particularly advantageously, the rod projection is designed to be complementary to the notch.

Further advantageously, the magnetic region on a support plate on which the rod projection is attached, which can be supported for further advantageous stabilization on a surface of the wheel.

For example, the magnetic region may be formed by providing ferromagnetic materials that can be attracted by a magnet. Alternatively, the braiding bobbin may also include a magnet, such as an electromagnet, which interacts with the magnet on the retainer of the module element, attracting the magnets to preferentially hold the braiding bobbin, and repelling to preferentially repel the braiding bob from the module element.

Instead of a magnet on the holding device may also be provided alternatively a magnetic region such as a ferromagnetic material, in which case advantageously the braiding bobbin a magnet, in particular an electromagnet having.

The braiding device according to the invention for braiding semifinished fiber products has a plurality of module elements described above, wherein the module elements are arranged such that at least a first holding element of a first module element can fly wicker bobbin following a predetermined bobbin trajectory to a second holding element of a second module element.

This means that the module elements are arranged relative to one another in such a way that the holding elements have a distance that can be overcome by a braiding bobbin to be transported further solely by the acting holding forces of the holding devices of the two module elements, for example magnetic forces. Accordingly, if the first module element lets go of the braiding beater, the holding device of the second module element is advantageously activated at the same time, so that the braiding beater passes from the first holding element of the first module element to the second holding element of the second module element.

By means of such a braiding device, a plurality of braiding bobbins can be delivered at predetermined angular positions of the individual module elements to a next module element. By this measure, it is in principle possible that the module elements are arranged freely in space to each other, which only advantageously the boundary condition is met, that can be overcome by the holding force of the distance between two mutually adjacent holding elements of different module elements. This allows any geometries that may be desired in a mesh to be created. Further, the contact between braided bobbins and module elements only occurs briefly and without much mechanical stress, the wear of the parts of the braiding is minimal.

Advantageously, the module elements are arranged in series and / or parallel to each other, so as to be able to braid flat fiber semi-finished products.

Alternatively or additionally, the module elements can also be arranged in several planes relative to one another in order to be able to braid preferably three-dimensional semi-finished fiber products with a plurality of layers.

Further advantageously, it is possible to arrange the module elements in a circle so as to be able to braid preferably tubular semi-finished fiber products.

All arrangements - in series, parallel, in several planes, circular - can be advantageously provided in combination or separately from each other, depending on the geometry of the braid to be produced.

In a particularly preferred embodiment, the braiding device further comprises a waiting device for forming at least one parking position for at least one braiding bobbin. Such a waiting device can be formed, for example, by a non-rotating module element which is arranged outside the predetermined bobbin track of the braiding bobbin to be parked. With such an arrangement, it is possible to advantageously supply braiding bobbins arbitrarily to the braiding process or to remove them from the braiding process in order, for example, to intercept changes in the circumference of a braid to be produced.

On the one hand, braided bobbins can advantageously be led out of the braiding process, which guide the actual braiding threads in the braiding process. Alternatively or additionally, however, it is also advantageously possible to remove those braiding bobbins from the braiding process, which guide support threads, ie threads which are opposite to the guide direction of the actual braiding threads be guided. As a result, a change between a UD braiding and a multi-tow winding in a braiding process is advantageously possible.

According to the invention, a control device is provided for controlling the module elements, wherein the control device controls the module elements such that a multi-dimensional braid, in particular with a plurality of braided layers, is formed.

In addition, the control device preferably has a storage unit in which predetermined bobbin laps are stored to form predetermined semifinished fiber molds. On the basis of the predetermined bobbin rail tracks, the module elements can then be preferably controlled by the control device so that the braiding bobbins move on the predetermined bobbin rail tracks, so that the predetermined semifinished fiber form is formed.

In a particularly preferred embodiment, the braiding device in addition to a plurality of modular elements and a plurality of braids, each having at least one magnetic region for interacting with the holding elements of the module elements.

Fig. 1

ein Modulelement zum Antreiben und Halten von Flechtklöppeln;

Fig. 2

die Übergabe von Flechtklöppeln zwischen Modulelementen gemäß Fig. 1; und

Fig. 3

eine Flechtvorrichtung mit kreisförmig angeordneten Modulelementen gemäß Fig. 1.

Embodiments of the invention will be explained in more detail with reference to the accompanying drawings. It shows:

Fig. 1

a modular element for driving and holding braiding bobbins;

Fig. 2

the transfer of braids between module elements according to Fig. 1 ; and

Fig. 3

a braiding device with circularly arranged module elements according to Fig. 1 ,

Fig. 1 shows a module element 10 for driving and holding braided bobbins 12, the support plates 13 have. With the support plate 13, the braided bobbins 12 are supported on the module element 10.

The module element 10 has a base element 14 and a plurality of holding elements 16 integrally formed with the base element 14, which are rotatable with the base element 14 about a common axis of rotation 18. The drive of the base member 14 via a motor 19 in the axis of rotation 18. Each holding member 16 has at least one holding device 20, with a braided bobbin 12 can be held on the support member 16.

The base member 14 is formed in the present embodiment as a wheel 22, on the circumference 24, the holding elements 16 are arranged symmetrically in the form of notches 26.

The holding devices 20 are arranged in the interior of the wheel 22 and designed as magnetic devices 30, in the present embodiment as electromagnets 32. About the electromagnets 32 braided bobbins 12 can be held on the holding device 20, attracted by the holding device 20 and repelled by this.

The module element 10 further has a control element 34 with which the elements of the module element 10 can be controlled. In particular, a rotational speed of base element 14 and holding elements 16 about the common axis of rotation 18, and a direction of rotation 36 are controlled. Further, the control 34 also controls the magnetic devices 30.

Instead of the magnetic means 30, a suction-blow-off mechanism 38 may be provided as a holding device 20 or a mechanical gripper 40.

By way of the control element 34, for example, the holding force is controlled, which is to be dispensed by the holding device 20 onto the container to be held / held Braided bobbin 12 acts. Furthermore, the control element 34 can also control, for example, the rotational speed of the base element 14 and / or the positioning of the braiding bobbin 12.

Fig. 1 shows a combination 42 of a modular element 10 with a braided bobbin 12, which is held on the module element 10 and transported along the direction of rotation 36. The braiding bobbin 12 is in Fig. 2 and Fig. 3 only shown by its support plate 13.

The braiding bobbin 12 in the present embodiment comprises a magnetic region 44, for example a ferromagnetic block 46, which interacts with the holding device 20 of the module element 10, so that the braiding bobbin 12 can be held on the holding element 16. In the present embodiment, the braiding bobbin 12 has, in addition to the support plate 13, a rod projection 47 which can be brought into engagement with the notch 26.

The base member 14 is mounted on a support plate 48 having a plurality of fasteners 49 to order module elements 10 in different positions to each other and to attach to each other.

An exemplary arrangement of a plurality of combinations 42 is shown in FIG Fig. 2 shown. Fig. 2 shows the further transport and the transfer of a braiding bobbin 12 from one module element 10a to another module element 10b using several braiding bobbins 12. Dashed line is the position of a braided bobbin 12 at a time indicated that lies before the implied by continuous lines situation. Between the two points in time, the module element 10a has made a rotation along the direction of rotation 36, so that the holding element 16a has traveled over the angle of rotation α and has arrived at a predetermined angular position. In this predetermined angular position, a second holding element 16b of a second module element 10b approaches the magnetic region 44 of the fixed braiding bobbin 12.

The holding device 20a of the first holding element 16a is deactivated, wherein at the same time the second holding device 20b of the second holding element 16b is activated. As a result, the braiding bobbin 12 is released from the first module element 10a and passes to the second module element 10b, where it is transported further along the direction of rotation 36.

Fig. 2 shows a first possible embodiment of a braiding device 50, the plurality of modular elements 10 according to Fig. 1 having. Various braiding batons 12 are moved in this braiding device 50 of the modular elements 10 along predetermined batt track webs 52, so that at predetermined positions of the braided bobbins 12 emitted fibers cross and thus form a mesh, such as a semi-finished fiber product.

The braiding device 50 in FIG Fig. 2 has a waiting device 60 which forms a parking position 62 for the braided bobbins 12. Thus, braided bobbins 12, which at a certain time during the braiding process can not or should not be used in the braiding process, can be parked in the parking position 62 in the meantime and later be added to the braiding process in the braiding process, where they can then be reused , This applies advantageously both for braiding bobbins 12, which guide the actual braiding threads, and for braided bobbins 12, the support threads lead.

Furthermore, a control device 64 is provided in the braiding device 50, which controls the module elements 10 such that a multi-dimensional braid is formed during the braiding process. The control device 64 has a memory unit 68, in which predetermined lap webs 52 are stored, so as to control the module elements 10 so that the desired braid can be generated by moving the predetermined bobbin webs 52 through the braided bobbins 12.

In the in Fig. 2 In the embodiment shown, the module elements 10 are arranged in a plane 69 in series with one another. Several series can be arranged parallel to each other.

Fig. 3 shows a braiding device 50, in which the module elements 10 are arranged in a circle 70. In a center of the circle 70 is usually a wicker core (not shown). The movement of the braided bobbin 12 on the circle 70 forms a braid on the braided core.

The performance range of previously known standard braiding systems is structurally rather inflexible. Subsequent adjustments can be difficult to implement via an intervention in the textile parameters, such as the basis weight, the fiber titer used, the setting, the braiding angle, the number of bobbins, etc. Here are changes in the textile parameters during the process with standard braiding only in a certain range with defined relationships possible. Next there is the problem of wear or contamination of the system by the mechanical design.

• Die maximale Klöppelanzahl wird durch die Anzahl der die Klöppel tragenden Räder definiert, so dass kein stufenloses Anpassen der Anlage auf das Bauteil möglich ist, mit Ausnahme einer Neuentwicklung bzw. dem Neukauf der gesamten Anlage;
• eine Anpassung, d.h. immer eine Reduzierung, der Klöppelanzahl und/oder des Bauteilsumfangs ist dabei notwendig, wodurch ein hoher Verschnitt und eine reduzierte maximale Flechtgeschwindigkeit resultieren, da die Anlage hohe Klöppelumlaufzeiten hat, weil die Flechter relativ groß sind;
• eine Beeinflussung der Abbindung ist nur durch drastische Reduzierung der Klöppelanzahl möglich;
• ein lokales Herausnehmen von Einzelklöppeln zur Reduzierung der Klöppelanzahl resultiert in lokalen Flächengewichtsunterschieden, da sich der Winkel zwischen den Klöppeln nicht anpasst;
• es besteht ein großer Aufwand, um die Flechtanlage 50 zu bestücken;
• ein vollautomatisiertes Bestücken ist bisher nur theoretisch möglich, praktisch müssten Weichen in den Führungsbahnen vorgesehen werden;
• eine stehende Flechtanlage 50 zeigt einen Schwerkrafteinfluss auf das Textilbild, d.h. eine unterschiedliche Fadenspannung bei oberen im Vergleich zu unteren Positionen, wobei sich der Schwerkrafteinfluss besonders bei großen Flechtanlagen 50 und deren großen Durchmessern bemerkbar macht;
• es ist kein Parken von einzelnen oder mehreren Klöppeln 12 möglich, die Laufbahnen sind fix;
• es besteht ein hohes Verschmutzungs- und Abnutzungspotential der Klöppellaufbahnen und der Flügelräder.

A major advance was the development of a radial braider by the company Herzog, as well as a plant for the realization of variable braiding patterns, the type of plant, for example, works for wire braiding. However, here, for example, a large number of bobbins, large volumes, high rotational speeds, the processing of plastic fibers and a variable system size can be realized only with difficulty. The currently operating braiding systems 50, such as radial or axial braiders, have the following disadvantages:

• The maximum number of bobbins is defined by the number of wheels supporting the beater, so that it is not possible to continuously adapt the system to the component, with the exception of a new development or the purchase of the entire system;
• an adaptation, ie always a reduction, the number of bobbins and / or the component circumference is necessary, resulting in a high waste and a reduced maximum braiding speed, since the system has high beater cycle times because the braiders are relatively large;
• An influence on the setting is only possible by drastically reducing the number of bobbins;
• a local removal of single bobbins to reduce the number of bobbins results in local basis weight differences, since the angle between the bobbins does not adapt;
• There is a great effort to equip the braiding 50;
• fully automated loading is only theoretically possible so far, points should be provided in the guideways;
• a standing braiding system 50 shows a gravitational influence on the textile image, ie a different thread tension at upper compared to lower positions, the influence of gravity is particularly noticeable in large braiding 50 and their large diameters noticeable;
• there is no parking of single or multiple bobbins 12 possible, the careers are fixed;
• There is a high contamination and wear potential of the lace webs and the impellers.

• variable Anzahl der Flügelräder je nach Umfang und Bedeckungsgrad, Winkel und Fasertiter des Bauteils;
• Winkel zwischen den Klöppeln 12 sollte sich stufenlos homogenisieren, um stufenlos die Klöppelanzahl auf den Bauteilumfang einstellen zu können;
• wünschenswert sind mehr als vier Haltepositionen an den Tragerädern, um diverse Abbindungen zu ermöglichen bzw. auch mehr als einen Klöppel 12 hintereinander zu führen;
• keine Führungsbahnen für die Klöppel 12, um Freiheitsgrade hinsichtlich Abbindung, Parken von Klöppeln 12, automatisiertes Bestücken zu erhöhen und Verschmutzungs- und Abnutzungspotential zu verringern;

Therefore, the following requirements exist for an improved braiding device 50:

• variable number of vanes depending on the extent and degree of coverage, angle and fiber titer of the component;
• Angle between the bobbins 12 should be continuously homogenized in order to adjust the number of beaters steplessly to the component circumference;
• more than four holding positions on the carrier wheels are desirable in order to enable various bindings or to guide more than one clapper 12 in succession;
• no guide tracks for the clappers 12 to increase degrees of freedom in setting, bumper parking 12, automated loading and reduce potential for fouling and wear;

It is advantageous that with the described construction also lying braiding systems 50 can be provided in order to reduce the gravitational influence in large braiding systems 50 and to improve the accessibility to the bobbins 12.

Therefore, it is now proposed to construct identical individual module elements 10 to an overall system 50 in an optimal desired size, wherein an open or closed cross-section, a circular, linear or cross-shaped shape and 2D and 3D geometries can be realized. Each module element 10 can be put together in series and in parallel, whereby one or more bobbin paths 52 can be realized. A modular element 10 has an impeller 22 or impeller pair for moving the braiding bobbins 12. The braided bobbins 12 adhere only to the impellers 22, there are no fixed tracks in the braiding device 50. The bobbin transfer takes place from impeller 22 to impeller 22 and is actively controlled. There are significantly more than four fixed points on the impellers 22.

The advantage is that a variable braiding system 50 is provided, which can be adapted to the requirements of the component to be produced, in particular with regard to productivity, installation costs and optimized textile parameters. The textile cross-sectional geometry, ie size, shape, 2D, 3D, open or closed, and the textile cross-sectional parameters such as setting, angle, basis weight, etc., are not limited by the braiding device 50. Improvements during the process, such as parking or feeding braiding bobbins 12 to accommodate circumferential changes, are possible. Furthermore, the braiding device 50 has a low susceptibility to contamination, since there are no guide grooves. There is no influence of gravity on the fibers to be braided. Overall, the braiding device 50 is more accessible and can be automated in the on-the-fly process. The angles between the modules 10 adjust automatically via spring forces or can be actively adjusted.

In particular, compared to the braiding device 50 in FIG DE 691 31 656 T2 The module elements 10 described here come out without guideways, since the braided bobbins 12 are magnetically fixed to the vane wheels 22, which has the great advantage that the bobbin railways 52 are completely freely selectable and not given technical equipment. Local Klöppelparken,-leading, turn, etc., can be realized by this or pollution is avoided because the transfer is not mechanical.

In the bobbin recording and handover there is a high accuracy in the synchronization of the impellers 22, in particular at the transfer points. It is a system for bobbin picking and driving the clapper 12 is provided. The clappers 12 are loaded on train to the braiding center and in the radial direction. Therefore, a recording for compensation of the trigger and the radial forces is provided.

As a drive system for propelling the clapper 12 through the impeller modules 10, for example, the impeller 22 itself may be driven, for example by providing a motor 19 on each or every x-th module 10. The bobbin adhesion is carried out by electromagnets 32, which can be designed active or passive, rotate with or are arranged locally or fixed. The transfer is preferably active.

In the active system, the impeller 22 is free to rotate and the bobbin adhesion is effected by active electromagnets 32, wherein upon the transfer of the respective electromagnet 32 adjacent impellers 22 is deactivated or activated. The propulsion takes place by means of commutating the fixed electromagnet 32. In a passive system, the impellers 22 are freely rotating and the bobbin adhesion is effected by permanent magnets, wherein the transfer takes place by fixed or local electromagnets 32 by the magnetic field is canceled.

With the proposed braiding 50, the size of the braiding 50 is now freely selectable or adjustable depending on the component requirement, budget, etc. There are open or closed braiding 50 possible, depending on the arrangement of the module elements 10. Therefore, the braider to the fabric, on 2D or 3D braids, adapted to T-sections, + cross sections and - cross sections. The braiding system 50 can be easily equipped by simply inserting clapper 12 or magnetically tightening it. In addition, the clapper 12 can be retracted locally. The fact that there are more than four fixed points on the impellers 22, the setting is customizable. Depending on the diameter of the braiding device 50, the angle between the bobbins 12 automatically sets. The clappers 12 can be parked or positioned on other tracks. In addition, there is good accessibility and no influence of gravity by, for example, a lying braiding system 50.

In the DE 691 31 656 T2 described braiding device 50 is always constructed only in the plane. In contrast, the module elements 10 described in FIG the plane, but also to a tunnel winding system are arranged in a circle, or can also be made the circular arrangement in several levels 69. In particular, by building a tunnel netting system, it is possible to produce CFRP components in Überflechttechnik.

LIST OF REFERENCE NUMBERS

10

module element

10a

first module element

10b

second module element

12

Flechtklöppel

13

support plate

14

base element

16

retaining element

16a

first holding element

16b

second holding element

18

axis of rotation

19

engine

20

holder

20a

first holding device

20b

second holding device

22

wheel

24

scope

26

score

30

magnetic device

32

electromagnet

34

control

36

direction of rotation

38

Suction blow-off mechanism

40

grab

42

combination

44

magnetic area

46

ferromagnetic block

47

bar tab

48

Retaining plate

49

fastener

50

braider

52

Clapper career

60

waiting means

62

parking position

64

control device

68

storage unit

69

level

70

circle

α

angle of rotation

Claims (11)

1. A braiding device (50) for braiding fiber preforms (58),
   comprising a plurality of module elements (10) for driving and retaining braiding bobbins (12), wherein each of the module elements (10) comprises at least one base element (14), which is rotatable about an axis of rotation (18) and configured as a winged wheel (22), wherein at least one retaining element (16) is configured for releasably retaining at least one braiding bobbin (12) offset from the axis of rotation (18), the retaining element (16) is integrally formed with the base element (14), the braiding bobbins (12) can be magnetically fixed to the winged wheels (22) by means of an electromagnet (32), and wherein the module elements (10) are arranged relative to one another in such a way that at least one first retaining element (16a) of a first module element (10a) can transfer braiding bobbins (12) to a second retaining element (16b) of a second module element (10b),
   characterized in that
   a control device (64) for controlling the module elements (10) is provided such that a multidimensional braid (56) is formed, and that the control device (64) includes a memory unit (68) in which predetermined bobbin trajectories (52) for forming predetermined fiber preforms are stored.
2. The braiding device (50) according to claim 1,
   characterized in that the retaining element (16) is formed by a retaining device (20) with a magnetic device (30) for magnetically attracting and repelling braiding bobbins (12).
3. The braiding device (50) according to claim 2,
   characterized in that
   the magnetic device (30) is formed by the electromagnet (32).
4. The braiding device (50) according to any one of the claims 1 to 3,
   characterized in that
   each of the module elements (10) comprises a control element (34) for controlling the module element (10).
5. The braiding device (50) according to claim 4,
   characterized in that
   the control element (34) is configured for controlling a rotary speed of the base element (14) and a retaining force that acts upon a braiding bobbin (12) at a predetermined angle of rotation (α) of the base element (14).
6. The braiding device (50) according to any one of the preceding claims,
   characterized in that
   each of the module elements (10) each have at least four retaining elements (16) that are evenly arranged on an outer circumference of the base element (14).
7. The braiding device (50) according to any one of the claims 1 to 6,
   characterized in that
   braiding bobbins (12) are provided, wherein the braiding bobbins (12) have at least one magnetic region (44) for interacting with the at least one retaining element (16) of the module elements (10).
8. The braiding device (50) according to any one of the preceding claims,
   characterized in that the module elements (10) are arranged in series and/or parallel to one another for braiding planar fiber preforms (58).
9. The braiding device (50) according to any one of the preceding claims,
   characterized in that several module elements (10) are arranged in series in a plane (69), and that several of these series are arranged parallel to one another, for braiding three-dimensional fiber preforms (58).
10. The braiding device (50) according to any one of the preceding claims,
    characterized in that the module elements (10) are arranged in a circular manner for braiding tubular fiber preforms (58).
11. The braiding device (50) according to any one of the preceding claims,
    characterized by a pausing device (60) for forming at least one parking position (62) for at least one braiding bobbin (12).

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