Dual-sprayer rapid forming system for environmentally sensitive function gradient materials

Abstract

The invention discloses a dual-sprayer rapid forming system for environmentally sensitive function gradient materials. The dual-sprayer rapid forming system for the environmentally sensitive functiongradient materials comprises a control unit, a printing platform, a box rack and two sprayer units; each sprayer unit comprises a feed mixing mechanism, a heating mechanism and an extrusion mechanism;each mixing mechanism comprises a feeding hopper, a toner box, a toner blower, a feed partition board, a feeding pipe and a stirring conveying screw rod; each toner box is installed on the side wallof the corresponding feeding hopper; the side of a discharging outlet of each toner box communicates with the interior of the corresponding feeding hopper; each toner blower right faces an air inlet of the corresponding toner box; and each heating mechanism inside the corresponding feeding hopper and below the corresponding toner box comprises a heating chamber, a discharging pipe, a temperature sensor and a heater wound around the heating chamber. The system can print intelligent structures with temperature expansion gradients in mixing and melt extrusion modes, and the problems that the requirements for raw materials are high and the forming precision is high in the manufacturing process of 3D printing environmentally sensitive function gradient materials are effectively solved.

Description

technical field [0001] The invention relates to a dual nozzle rapid prototyping system for environmentally sensitive functionally graded materials. Background technique [0002] 3D printing technology is a kind of rapid prototyping technology. It does not need to use traditional tools such as knives and abrasive tools to remove materials. Instead, it gradually superimposes digitally discrete materials into shape. In recent years, 3D printing technology has received widespread attention from all walks of life at home and abroad. Relevant people and research institutions have begun to formulate development plans for 3D printing technology and have carried out corresponding research work. Fused deposition modeling is the most vital and fastest-growing rapid prototyping technology in 3D printing technology. The process of fused deposition modeling is to first divide the model into several layers, plan the scanning path of the layer according to the cross-sectional shape of the ...

AI Technical Summary

Problems solved by technology

In addition, due to the limitation of the miniaturization of the nozzles of ordinary 3D printers, the materials used usually need to be pre-processed into coiled wires, and their thickness and length are limited by the melting and stepping system inside the printer nozzles.

And the material uniformity of the wire will affect the molding quality of the printed model

This severely limits the design of smart structures and smart materials

[0004] However, the existing melt-extruded material options are limited, and 3D printing equipment that combines traditional thermoplastic and environmentally sensitive composite materials has not yet appeared.

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