A composite additive manufacturing equipment for continuous fiber thermoplastic material structural parts

Abstract

The invention provides equipment for manufacturing a continuous fiber thermoplastic material structural component composite additional material. The equipment comprises a worktable, a Z axis motion unit, a printing platform, an XY axis motion unit, a thermoplastic material extrusion mechanism and a continuous fiber feeding mechanism, wherein the Z axis motion unit is arranged on the worktable; theprinting platform is arranged on a power output end of the Z axis motion unit; the XY axis motion unit is arranged on the worktable; the thermoplastic material extrusion mechanism and the continuousfiber feeding mechanism are arranged at the power output end of the XY motion unit and positioned above the printing platform; the printing platform comprises a mounting rack, a turning mechanism, a rotating mechanism and a molding support plate; the mounting rack is connected with the power output end of the Z axis motion unit; the turning mechanism is arranged on the mounting rack; the rotatingmechanism is arranged on the turning mechanism, and the rotating shaft is perpendicular to the turning shaft; the molding support plate is arranged on the rotating mechanism. According to the equipment disclosed by the invention, the mechanical property of the structural component manufactured from the thermoplastic additional material is greatly improved, and the problem that the traditional carbon fiber composite structural component is complicated in manufacturing process and long in production cycle and often needs molds and difficultly realizes manufacturing of complicated structures canbe solved.

Description

technical field [0001] The invention relates to the technical field of continuous fiber composite material manufacturing, in particular to a continuous fiber thermoplastic material structural component composite additive manufacturing equipment. Background technique [0002] In the past few decades, academia and industry have continuously innovated and developed a variety of additive manufacturing technologies. Among them, thermoplastic material fused deposition modeling technology has become one of the most widely used additive manufacturing technologies because of its low cost and easy operation. However, thermoplastic material fused deposition molding structural parts have obvious shortcomings in terms of mechanical properties. Most printed structural parts are still in the "similar" stage, and the lack of strength greatly limits their direct application in the terminal market, especially for high mechanical strength requirements. field. [0003] As a strategic material...

AI Technical Summary

Problems solved by technology

[0005] The above patent documents focus on solving the problem of how to realize the mixing and printing of continuous carbon fiber thermoplastic materials. However, due to the process characteristics of additive manufacturing technology layered on top of each other, the mechanical properties of continuous fiber composite materials in the printing direction are poor, which is a constraint for additive manufacturing. Key Issues in Manufacturing Continuous Fiber Composite Structural Parts for Further Wide Application

In addition, compared with traditional additive manufacturing technologies (such as thermoplastic material fused deposition modeling, metal powder laser sintering, resin photocuring, etc., the material in the printing process is liquid or powder), the continuous fiber composite additive manufacturing process has its special features. Resilience: Since the fibers are continuous, there are extremely high requirements on the printing path, which leads to certain limitations in the manufacture of complex structural parts in the existing technology

Images