Continuous carbon fiber composite material 3D printing device and method with modifying and dipping synchronization function

Abstract

The invention provides a continuous carbon fiber composite material 3D printing device and method with a modifying and dipping synchronization function. A fiber guide pipe is partially immersed in a solution of a synchronous modification container, and the immersed part is provided with a notch for the solution to flow; the fiber guide pipe and a resin guide pipe are connected with two inlets of aprinting head respectively, an outlet of the printing head is connected with a heating block, and a nozzle is arranged at the bottom of the heating block. According to the device and method, 3D printing of the fiber composite material which is synchronously modified and dipped is achieved; through the design of a mechanical structure, the modified continuous fiber enters the heating block along with resin to be printed, the unmodified resin is conveyed into a modification solution to be soaked and modified so that printed carbon fibers can be modified all the time, and synchronization of fiber modification and printing is effectively achieved; after the carbon fibers are soaked with the modified solution, original cellosilk which is easy to disperse in the carbon fibers is combined more tightly; the surfaces of the carbon fibers are coated with a layer of resin, so that the binding effect of the carbon fibers and the resin in the molten state is improved, and the continuous carbon fiber material is not easy to break in the printing process.

Description

technical field [0001] The invention relates to a carbon fiber, in particular to a 3D printing device and method of a carbon composite fiber. Background technique [0002] Fiber-reinforced composite materials have become an important structural material for modern industries, especially aerospace and automotive racing, due to their incomparable advantages in performance (such as light weight, high strength, dimensional stability and good design) that other materials cannot match. [0003] The use of composite parts in aircraft and automobiles can significantly reduce structural weight, which is of great significance for reducing operating costs and improving fuel efficiency and safety. The traditional composite material process has disadvantages such as low degree of automation and long molding cycle, and the productivity is limited by the suppression of low industrial productivity and labor cost. [0004] In recent years, the emergence of three-dimensional (Three dimension...

AI Technical Summary

Problems solved by technology

Since the continuous carbon fiber and the molten PLA resin cannot be well fused together, the resin cannot be ejected from the nozzle together with the fiber during the printing process, and the printed model fiber is not completely combined with the resin.

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