Multi-material 3D printing sprayer and operating method thereof

Abstract

The invention discloses a multi-material 3D printing sprayer and an operating method thereof. The multi-material 3D printing sprayer comprises a sprayer body, a plurality of feeding channels, a sprayer cover and an ultrasonic oscillating ring, wherein the sprayer cover is mounted on the sprayer body; the feeding channels are arranged on a cylindrical surface above the sprayer body in a surrounding mode in the circumferential direction, communicate with an inner cavity of the sprayer body, and are located below the sprayer cover and above the ultrasonic oscillating ring; and the upper portion of a discharging port of the sprayer body is sleeved with the ultrasonic oscillating ring. According to the multi-material 3D printing sprayer and the operating method thereof, the single sprayer body connected with the multiple feeding channels is arranged, and the ultrasonic oscillating ring is mounted on the upper portion of the discharging port for uniform mixing so that mixed printing or separated printing of various materials can be achieved, printing of gradient material products can be completed, and the purpose for printing the gradient material products in the prior art is effectively achieved; the multi-material 3D printing sprayer and the operating method thereof have the advantages that the structure is simple, and the cost is low; and proportional valves are used for controlling the feeding quantities of the feeding channels so that components can be controlled for multi-material printing.

Description

technical field [0001] The invention belongs to the technical field of 3D printing equipment, and relates to a multi-material 3D printing nozzle and an operating method thereof. Background technique [0002] Functionally graded material is a new type of material whose composition and structure change continuously from one orientation (one-dimensional, two-dimensional, three-dimensional) of the material to another, so that the performance and function of the material also present a gradient change. It has applications in many fields, such as aerospace, mechanical engineering, bioengineering, optoelectronic engineering, energy and electrical engineering, etc., so the preparation of functionally graded materials is of great significance. [0003] 3D printing technology is a new type of molding technology based on the idea of ​​discrete and accumulation molding. It can quickly and accurately manufacture the solid model of a part or object based on the three-dimensional model dat...

AI Technical Summary

Problems solved by technology

Currently commonly used 3D printing processes include fused deposition modeling (FDM), selective laser sintering (SLS), stereolithography (SLA) and layered entity manufacturing (LOM). These processes have commercialized products, SLS, SLA and LOM technologies can only print a single material, and cannot print multiple materials at the same time, while FDM technology generally has two or more nozzles to print the main material and support material, and it is difficult to print gradient material products

The printing technology based on extrusion molding and droplet injection molding technology can realize printing of more than two materials. The principle is that each material has a corresponding nozzle. When printing the required material, the nozzle of the required material will work, and the rest will not work. Therefore, when the printing material increases, the number of nozzles increases, which increases the complexity of the system, the cost is high, and the composition control of the material cannot be realized.

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