Continuous production equipment and continuous production technology of foam core composite material sandwich plate

Abstract

The invention discloses continuous production equipment of a foam core composite material sandwich plate. The continuous production equipment is convenient to popularize, simple and easy to operate and high in production efficiency, and can realize the industrialized continuous production. The continuous production equipment comprises a foam forming device, a sandwich plate forming plate, a traction device and a cutting device which are connected in sequence, wherein the foam forming device comprises a feeding mixing system, an extrusion forming system and a heating cooling system; the sandwich plate forming device comprises a foam surface processing system, a core material primary positioning device, a fiber gum dipping device, a guiding mold and a heating mold; the foam surface processing system is connected with the heating cooling system of the foam forming device; the core material primary positioning device, the guiding mold and the heating mold are arranged in a running path of a core material in sequence; and the fiber gum dipping device and the heating device are arranged in a running path of composite material fibers in sequence. The invention further discloses a continuous production technology of the foam core composite material sandwich plate.

Description

technical field [0001] The present invention relates to a new type of continuous production equipment and technology for composite sandwich panels, in particular to a manufacturing equipment and technology for sandwich panels using foam as the sandwich material, specifically a foaming process that introduces foam into the In the existing pultrusion production line, the problem of continuous connection of core materials can be well solved, the production efficiency is high, the designability is strong, and industrialized continuous production can be realized. Background technique [0002] As a new structural form, composite sandwich structure has been widely used in construction, transportation, ships, aerospace, etc. due to its advantages of light weight, high specific strength, easy processing and modification, corrosion resistance, and strong designability. field. In composite sandwich structures, polymer foam is one of the most common core materials. Due to the relative...

AI Technical Summary

Problems solved by technology

However, the specifications of the foam boards used in the market are small, and the foam core material needs to be cut before the pultrusion process, which will generate more waste, and it is difficult to directly apply it to the production of sandwich boards with different size requirements in the pultrusion process

[0003] In terms of the mechanical properties of the foam sandwich panel under the pultrusion process, because the foam core material is discontinuous at the joint and the strength of the foam itself is low, the mechanical properties of the sandwich panel at the core material joint are also poor.

In practical engineering applications, the extruded products are often cut at discontinuities, thereby reducing the size of the sandwich panel; or by implanting some additional rigid or semi-rigid connectors, but this method will change the process. It is more complicated, and it is difficult to ensure the interface between the connector and the surface layer during co-curing

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