Corner laying carbon fiber/resin composite product 3D printing repairing machine and method

Abstract

The invention discloses a 3D printing modification machine capable of laying a carbon fiber / resin composite material product at an angle. The 3D printing modification machine comprises a machining platform, a fiber penetrating plate structure, a fiber resin multifunctional spray head and a modification cutter, the diameter of a single-layer fiber penetrating plate can be independently selected according to the size of a workpiece during printing, the number of layers of the fiber penetrating plate structure can be determined by the size of the machined workpiece, carbon fibers can be effectively saved by selecting the proper number of layers of the fiber penetrating plate structure, and meanwhile the fiber penetrating efficiency is improved; the fiber resin multifunctional spray head comprises a fiber laying spray head, a thermoplastic material spray head, a spray head converter and a heating spray head, and can achieve the functions of fiber laying, resin spraying, solidification accelerating and intelligent adjusting; the modification cutter is used for cutting off the carbon fibers connected between the workpiece and the fiber penetrating plate and removing burrs on the surfaceof the workpiece when machining is finished at each layer, and meanwhile, the surface of the workpiece can be accurately modified like a cutter of a machine tool spindle after machining is finished; and a lifting platform of the machining platform moves up and down, so that each layer of material is conveniently and quickly laid.

Description

technical field [0001] The invention belongs to the technical field of fiber-reinforced 3D printing, and in particular relates to a corner-laying carbon fiber / resin composite product 3D printing repairing machine and method. 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, automobile racing, An important structural material in robotics and medical fields, 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...

AI Technical Summary

Problems solved by technology

Patent CN201410325650.3 proposes a 3D printing of fiber-reinforced composite materials based on a 3D printer-based laying and spinning equipment. This equipment can only provide the most basic 3D printing idea, because there is no further technical processing for the laying process , such as the inability to enhance the strength of fiber filaments, resulting in the fact that the strength requirements cannot be well realized in actual use, and can only be used as an ideal concept

CN201810422931.9 provides a printing nozzle for printing fiber-reinforced composite materials, but the nozzle cannot perform full-angle wire laying, and cannot meet the requirements for the direction of fiber laying in actual production, and the function is not perfect

CN201711345896.7 Cannot freely change the size of the platform used during printing, which will lead to waste of materials

CN201711050843.2 also designed a disc rotating platform, but the nozzle of this equipment cannot rotate, and the movement of the rotating platform only makes up for the lack of movement of the nozzle, but cannot realize the tension of the fiber filaments, and the function is relatively single

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