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Extrusion device for curved profiles

A technology for extrusion devices and profiles, which is applied in the field of extrusion devices, can solve problems such as the inability to change the cross-section of profiles, and achieve the effect of reducing downtime and improving productivity

Pending Publication Date: 2022-05-10
KRAUSSMAFFEI TECH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in order to adjust the shape of the profile, especially the cross-section, the entire device must be cut off and refitted
The cross-section of the profile cannot be changed during the extrusion process run

Method used

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  • Extrusion device for curved profiles
  • Extrusion device for curved profiles
  • Extrusion device for curved profiles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] Figure 1AA cross section through the extrusion device 100 is shown schematically along the movement direction z of the fiber bundle 210 conveyed in the extrusion device 100 . The extrusion device 100 has a fiber feeder 110 , an impregnation die 120 and a forming die 130 .

[0031] The fiber bundles 210 are withdrawn from the fiber feeder 110 and are guided from there into the impregnation mold 120 . The fiber feeder 110 may be, for example, a plurality of fiber spools providing fibers of the fiber tow. It can be a single fiber, or it can be a fabric, etc. The fiber bundle 210 and the fiber feeder 110 here correspond to components known from the prior art. Therefore, there is no need to discuss this further.

[0032] In the impregnation die 120, the fiber bundle 210 is impregnated with an extruded matrix 220, such as a resin. This step also corresponds to the usual practice known from the prior art. Both the impregnation die 120 and the extrusion matrix 220 can be ...

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Abstract

The invention relates to an extrusion device (100) for producing a fibre-reinforced profile (300), comprising: a fibre feeder (110) for feeding a fibre bundle (210); an impregnation mold (120) for impregnating the fiber bundle (210) fed by the fiber feeder (110) in an extrusion matrix (220); and a forming die (130) for forming and curing the fiber bundle (210) impregnated with the extrusion matrix (220) to produce the fiber-reinforced profile (300). In this case, the forming tool (130) is adapted to move the fiber bundle (210) impregnated with the extrusion matrix (220) in the forming tool (130) through a plurality of openings (140), the inner contour (142) of which defines the outer contour of the fiber-reinforced profile (300) and which are each fixed in the direction of movement of the fiber bundle (210). Furthermore, the forming die (130) is adapted to vary a cross-section of the opening (140) perpendicular to the direction of movement during operation of the extrusion device (100) such that the cross-sectional area of the opening (140) remains constant.

Description

technical field [0001] The invention relates to an extrusion device suitable for producing fiber-reinforced profiles with variable cross-section or curved fiber-reinforced profiles. Background technique [0002] When extruded, fiber-reinforced profiles are usually produced as solid or hollow profiles with a constant cross-section and no curvature. Here, fiber bundles impregnated with an extruded matrix are drawn through hollow profiles and harden in the process. Here, the shape of the hollow profile determines the shape of the profile. Here, the device consists of stationary components through which the fiber bundles are moved. This results in the linearity of the profile and its constant cross-section, i.e. no curvature. [0003] In addition to this technique, curved profiles can also be manufactured by designing the profile to move to form the profile. Here, the impregnated fiber strands are solidified in a moving mold which itself deforms the impregnated fiber strands...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/52
CPCB29C70/526B29C70/521
Inventor 塞巴斯蒂安·施密杜伯
Owner KRAUSSMAFFEI TECH GMBH
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