Special-shaped sandwich fiber product sandwich guiding pultrusion device

Abstract

The invention discloses a special-shaped sandwich fiber product sandwich guiding pultrusion device. The device comprises a pultrusion die and a preforming module. The pultrusion die comprises a forming die cavity and a die core. The forming die cavity comprises a feed end and a discharge end. The die core penetrates through the whole forming die cavity. The preforming module comprises a preforming male die, a preforming ring, a preforming die cavity, a supporting and guiding module and a connecting and positioning module, wherein the die core extends to the outer portion of the feed end to form the preforming male die; the preforming ring is mounted on the preforming male die and can move on the preforming male die in the feeding direction; the preforming die cavity is formed by a gap between the inner side of the preforming ring and the preforming male die; the supporting and guiding module guides an upper fiber layer, an sandwich and a lower fiber layer into the preforming die cavity; the connecting and positioning module connects the supporting and guiding module with the preforming module and positions the supporting and guiding module and the preforming module. By adopting the device, the surface smoothness of fiber products can be improved, and the interlaminar shear strength and surface toughness are enhanced. The special-shaped sandwich fiber product sandwich guiding pultrusion device is suitable for automatic and continuous production of structure-complicated special-shaped fiber products.

Description

technical field [0001] The invention relates to the technical field of fiber pultrusion molding, in particular to a sandwich guiding pultrusion device for special-shaped sandwich fiber products. Background technique [0002] The pultrusion forming process is a composite material forming technology for making composite material products. It is a highly mechanized production process in the composite material forming technology. It is especially suitable for the manufacture of civilian and military products with medium batches or more. Bubbles, cracks, air bubbles or pores, and fiber yarn deviation often occur on the surface of the product during the process. [0003] In order to solve the above problems, some researchers have proposed some pultrusion devices, which can improve the production quality by setting preformed templates. Forming device, which is equipped with a yarn releasing device, a dipping tank, a felting device, a preforming template, a mould, a traction device...

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Problems solved by technology

[0005] However, the above-mentioned pultrusion molding device is prone to low fiber content, uneven fiber arrangement, excessive extrusion deformation of fibers and surface mats, etc. during the pultrusion process of fibers, so it cannot solve the problem of products in the pultrusion molding process. Defects, and poor support and routing in the pultrusion device, which leads to poor automation and continuity

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