3D printing head for continuous-fiber-reinforced intelligent composite material and use method of 3D printing head

Abstract

A 3D printing head for a continuous-fiber-reinforced intelligent composite material comprises a 3D printing head support, wherein the 3D printing head support is connected with a 3D printing head truss, the middle of the 3D printing head truss is connected with a throat pipe, two ends of the throat pipe are connected with a heat dissipation frame and a heating block respectively, the heat dissipation frame is connected with a thermoplastic base material, the thermoplastic base material passes through a first inner channel formed by the heat dissipation frame and the throat pipe, a needle, a copper nozzle, a heating pipe and a heat-sensitive sensor are connected onto the heating block, continuous fiber bundles pass through a second inner channel formed by the needle and the copper nozzle, the continuous fiber bundles and thermoplastic base material in a molten state are composited at the front end of the copper nozzle and extruded from an outlet of the copper nozzle, and quick manufacturing of parts which are made of the composite material and adopts complex structures is realized.

Description

technical field [0001] The invention relates to the technical field of 3D printing of fiber-reinforced composite materials, in particular to a 3D printing head for continuous fiber-reinforced intelligent composite materials and a method for using the same. Background technique [0002] Parts made of continuous fiber reinforced composite materials have the advantages of high specific strength, large specific modulus, designability of material properties, good corrosion resistance and durability, and have become a modern industry, especially in aerospace, national defense, and automobile racing It is an important structural material in the fields of robotics, robotics and medical treatment, and its development is very rapid. At present, the advanced continuous fiber-reinforced composite parts manufacturing method mostly adopts the composite material fiber laying technology, that is, according to the laying direction and laying thickness requirements determined by the part stru...

AI Technical Summary

Problems solved by technology

[0005] 1. Although the emergence and development of smart fibers have been around for some time, they are still not well applied to industrialized industrial life, the main reason being the lack of their utilization forms;

[0006] 2. In the traditional fiber placement technology of composite materials, pre-treated fiber prepregs and high-cost molds are required, which is not suitable for batch manufacturing of continuous fiber-reinforced parts with complex structures, and will also cause trouble for the utilization of smart fibers ;

[0007] 3. There are few 3D printers and related research work that can realize the manufacture of fiber-reinforced composite parts at home and abroad, and no mature continuous fiber-reinforced composite 3D printing related devices have been found, so this greatly limits the application of 3D printing technology in fiber-reinforced composites. Developments in the field of material part manufacturing

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