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Spreading device for spreading out fibre filament bundles, and spreading method carried out using same

A technology of fiber tows and fiber bundles, which is applied in the field of spreading devices, can solve problems such as irregular and irregular fiber distribution, and achieve the effect of flat and uniform spreading and avoiding fiber aggregation

Active Publication Date: 2010-03-24
EADS DEUT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The result of the spreading operation can thus be very irregular due to irregular fiber distribution

Method used

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  • Spreading device for spreading out fibre filament bundles, and spreading method carried out using same
  • Spreading device for spreading out fibre filament bundles, and spreading method carried out using same
  • Spreading device for spreading out fibre filament bundles, and spreading method carried out using same

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Embodiment Construction

[0037] figure 1 A general view of the preform manufacturing plant, generally indicated by reference numeral 10, is shown. The preform production device allows complex textile semi-finished products to be produced from fiber filaments aligned in the load flow, so that fiber composite structures can be produced in a simple manner even in the case of semi-finished products with complex structures. This textile semi-finished product is called a preform. These preforms consist of individual staple fiber segments held in place by a binder material in accordance with figure 1 Manufactured in advanced equipment, these fiber segments can be pre-cut from specially pretreated fiber tows or fiber tapes. Thus, the preform manufacturing plant may comprise a preparation module 12 for possible preparation of the fiber tape 14 and a cutting and laying module 16 for cutting and laying the fiber tape segments. A possible demarcation 15 between modules 12 and 16 is indicated by a dotted line...

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PUM

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Abstract

The invention relates to a spreading device (20) and a spreading method for spreading out fibre filament bundles (32) to form a flat fibre band (14). Problems relating to the material quality of fibrefilament bundles (32) to be spread out are solved by repeatedly exposing the fibre filament bundle (32) to at least one convex spreading edge (80).

Description

technical field [0001] The invention relates to a spreading device for spreading (spreading, Aufspreizen) fiber tows into a flat fiber strip. The spreading device according to the invention is particularly suitable for use in a method for the production of preforms of fiber composite structures aligned in load flow. Furthermore, the invention relates to a spreading method carried out using the spreading device. Background technique [0002] In the construction of all types of vehicles, especially in the construction of aircraft and spacecraft, but also in other branches of industry such as mechanical engineering, there is an increasing demand for strong, lightweight and cost-effective materials. In particular, fiber composites have outstanding potential for lightweight construction. The principle lies in the fact that particularly strong and stiff fibers are embedded in the matrix in such a way that they are aligned with the load flow, so that by using existing technologie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D02J1/18D04H3/04D04H3/12D04H3/002
CPCD04H3/002D02J1/18D04H3/04D04H3/12
Inventor O·迈尔
Owner EADS DEUT GMBH
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