Sandwich structure composite material one-step preparation injection molding device and method

Abstract

The invention provides a sandwich structure composite material one-step preparation injection molding device. The device is used for machining a core material. The device comprises a feeding unit, a fiber weaving machine, an injection molding die, a pulling unit and a cutting unit, wherein the fiber weaving machine is annular, and the core material passes through the fiber weaving machine; a bobbin is disposed on the fiber weaving machine, single-way fibers are disposed in the bobbin, one ends of the single-way fibers are connected with the surface of the core material in an abutting mode through a forming plate, the core material penetrates through a channel in the injection molding die, the feeding unit, the fiber weaving machine, the injection molding die, the pulling unit and the cutting unit are arranged in sequence in the length direction of the core material. The invention further provides a sandwich structure composite material one-step preparation injection molding method. Thecore material passes through the feeding unit, the fiber weaving machine, the injection molding die, the pulling unit and the cutting unit in sequence, and a sandwich structure composite material isformed. Fiber pipes adopt clockwise and anticlockwise fiber weaving, and interweaving and fiber mechanical property loss does not exist.

Description

technical field [0001] The invention relates to a method for processing sandwich sandwich structure composite materials, in particular to an injection molding device and method for preparing sandwich sandwich structure composite materials in one step. Background technique [0002] Sandwich sandwich structure composite materials are composed of high-strength and high-rigidity upper and lower skins (such as carbon fiber laminates, glass fiber laminates, aramid fiber laminates, basalt fiber laminates, etc.) and core materials with excellent mechanical properties (such as foam, honeycomb, balsa wood, PP, etc.), it not only has excellent bending performance, impact resistance, fatigue resistance and vibration reduction performance, but also has many advantages such as light weight and corrosion resistance, and has been widely used in aviation Aerospace, transportation, energy, construction, sports equipment and many other fields are currently one of the fastest growing and most w...

AI Technical Summary

Problems solved by technology

[0003] At present, in the preparation process of sandwich structure composite materials, hand lay-up process, molding process or resin transfer molding process (RTM) are generally used. These processes cannot directly use unidirectional fiber bundles (need to process the upper and lower layers first). leather), there are problems such as long production cycle and inability to continue production, so that the production cost of sandwich sandwich structure composite materials remains high

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