A 3D printer and method for corner-laying carbon fiber/resin composite products

Abstract

The invention relates to a 3D printer and method for corner-laid carbon fiber / resin composite products. The printer includes a processing platform, a filament-threading plate structure, and a fiber-resin multifunctional nozzle. When printing, the diameter of a single-layer filament-threading plate can be independently selected according to the size of the workpiece. , and the number of layers of the threading plate structure can be determined by the size of the workpiece to be processed. Choosing the appropriate number of layers of the threading plate structure can effectively save carbon fiber filaments and improve the efficiency of threading; the threading plate structure includes a detachable cutting shear , installed on the lower half of the uppermost threading board during the work process, is used to cut the carbon fiber filaments after each layer of threading is completed. The fiber resin multi-functional nozzle includes a laying nozzle, a thermoplastic material nozzle, a nozzle converter, and a heating nozzle. . This method can realize the laying of carbon fibers at any angle and can enhance the strength of carbon fiber filaments. This method saves materials and has high processing efficiency.

Description

technical field [0001] The invention belongs to the technical field of fiber-reinforced 3D printing, and in particular relates to a 3D printer and method for corner-laid carbon fiber / resin composite material products. Background technique [0002] Due to its high specific strength, high specific modulus, ablation resistance and erosion resistance and other advantages, fiber-reinforced composite materials have been widely recognized in contemporary manufacturing industries, and have become a modern industry, especially in aerospace, national defense, shipbuilding, It is an important structural material in the field of robotics, and its development is very rapid. In recent years, various composite material manufacturing technologies have emerged as the times require. Among them, the application of fiber placement technology in the manufacture of high-performance composite material parts such as aerospace and aviation has attracted widespread attention from all walks of life. ...

AI Technical Summary

Problems solved by technology

For example, the patent CN201811374788.7 proposes a wire laying and spinning equipment based on the principle of a 3D printer. It has a new idea for infiltrating and curing continuous fibers, but the printing method of this equipment has not been improved, and can only provide the most basic 3D Printing concept, can not efficiently meet some special needs

CN201711050843.2 proposes a printer that utilizes rotation and high-speed filament laying, but this invention cannot meet the requirements for fiber filament strength well while meeting high-speed and high-efficiency, resulting in that the strength of the material cannot be well Guarantee, it can only be used as a prototype of equipment to improve efficiency

CN201810422931.9 provides a printing nozzle for printing fiber-reinforced composite materials, but the nozzle cannot measure whether the filament is straightened, and cannot guarantee the correctness of the filament output by the printer, as well as the degree of completion of the printed product, and the function needs to be improved

CN 201711345896.7 The size of the equipped platform cannot be freely changed during printing, which will lead to waste of materials

CN201711050843.2 Although a disc rotating platform is designed, the nozzle of the device cannot rotate, and the movement of the rotating platform only makes up for the lack of movement of the nozzle, but it cannot achieve the tension of the fiber filaments, and the printing function still needs to be improved

CN201810422931.9 adopts additive manufacturing, but the residual wire cannot be effectively removed when processing the residual wire, and the finished product is not high in completion

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