Rapid dual-way material paving full-color 3D printing machine

Abstract

The invention discloses a rapid dual-way material paving full-color 3D printing machine. The rapid dual-way material paving full-color 3D printing machine comprises a shell, a control platform and a material paving mechanism; printing assemblies are arranged on the two sides of the material paving mechanism, and adopt photocuring full-color inkjet print heads, UV photocuring lamp tubes are arranged on the two sides of the bottoms of the photocuring full-color inkjet print heads, material boxes are arranged on the two ends of the shell, quantitative discharging devices are arranged at the lowerends of the material boxes, a forming cylinder body is arranged in the shell, the forming cylinder body can slide along guide rails on the two sides of the bottom in the shell, a forming cylinder upper rend powder bed is arranged on the top of the forming cylinder body, a discharging opening is formed in one end of the shell, and a sand removal device is arranged on the outer side of the discharging opening. Dual-way material paving of a material paving mechanism is achieved, in the back and forth process of the material paving mechanism, the dwell time is short, the work efficiency is greatly improved, sand removal and material taking are integrated, the automation degree is high, manpower and time are greatly saved, the sand removal efficiency is improved, the raw material use rate is high, and cost is greatly saved.

Description

technical field [0001] The invention relates to a 3D printer, in particular to a full-color 3D printer for rapid two-way material laying. Background technique [0002] Three-dimensional printing process (3DP) is a kind of rapid prototyping technology. It is a technology based on digital model files and using bondable materials such as powdered metal or plastic to construct objects by layer-by-layer printing. 3D printing is usually achieved using digital technology material printers. It is often used to make models in the fields of mold manufacturing and industrial design, and is gradually used in the direct manufacture of some products. There are already parts printed using this technology. The technology has applications in jewelry, footwear, industrial design, architecture, engineering and construction (AEC), automotive, aerospace, dental and medical industries, education, geographic information systems, civil engineering, and other fields. But at present, when 3D printe...

AI Technical Summary

Problems solved by technology

It has the following technical problems: first, the raw materials used are two-component raw materials, which are not bonded, and the excess raw materials cannot be reused, which will cause great waste, and the utilization rate of raw sand is low; second, the printing materials used The head only sprays the curing glue, and the printed finished product has a single color, which cannot meet the demand; third, it only has one raw material box, and the material is spread in one direction when spreading the material. After the material spreading device is finished, return to the starting point, and the printing head starts Work, after the printing is completed, the next laying is carried out. Both laying and printing require a long waiting time. It takes several hours or even dozens of hours to print a finished product, which is inefficient and seriously affects the batch of products. production; fourth, fine sand adheres to the surface of the printed product, and it takes a lot of manpower and time to clean it up, and it will affect the surface quality of the finished product if it is not cleaned; fifth, it usually sets overflow sand outside the two ends of the powder bed When laying materials, the laying device pushes the excess raw materials into the overflow sand box for collection. After printing, the overflow sand box must be cleaned by manpower after a period of time. The location is relatively narrow, so it is difficult to take it out and clean it. and time-consuming cleaning

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