Residual material recovery and nozzle cleaning method of a three-dimensional printing system

Abstract

The invention proposes a method for recovering leftover materials and nozzle cleaning of a three-dimensional printing system. The three-dimensional printing system includes a nozzle, a connecting pipe and a material box. The first end of the connecting pipe is connected to the nozzle, and the second end is connected to the material box. The nozzle is extracted from the material box. The printing material is jet-printed, and the method of recovering the remaining material and cleaning the nozzle uses pneumatic flushing and hydraulic flushing to recover and clean the residual printing material respectively. The specific steps are as follows: After the three-dimensional printing is completed, inflate the nozzle and connect it to The remaining printing material in the tube is flushed back to the material box; after the nozzle is inflated, water is poured from the second end of the connecting tube to clean the remaining printing material in the connecting tube and the nozzle. The invention proposes a three-dimensional printing system for the recycling of leftover materials and the nozzle cleaning method through the combination of pneumatic flushing and hydraulic flushing, which not only solves the problem of residual printing materials in the nozzles and connecting pipes, but also realizes the simple and quick cleaning of residual printing materials. Recycle.

Description

technical field [0001] The invention relates to the technical field of three-dimensional printing, in particular to a method for recycling leftover materials and cleaning nozzles of a three-dimensional printing system. Background technique [0002] Three-dimensional printing, also known as 3D printing (Three Dimensions Printing), belongs to a kind of rapid prototyping technology. It is a technology based on digital model files, using bondable materials such as powdered metal or plastic, to construct objects by layer-by-layer printing. In the past, it was often used to make models in the fields of mold manufacturing and industrial design, and is now gradually being used in the direct manufacture of some products, especially some high-value products (such as hip joints or teeth, or aircraft parts) have used this Parts printed by this technology. [0003] In 3D printing, the material box for storing the printing material and the nozzle for ejecting the printing material are e...

AI Technical Summary

Problems solved by technology

Due to the high value of many printing materials, in the prior art, the remaining materials in the nozzles and connecting pipes are usually cleaned directly, which is difficult to recycle and causes waste

Even if there is a method to recycle the printing material, the operation steps are more complicated, time-consuming and labor-intensive, and even the nozzle and the connecting pipe cannot be fully cleaned due to the recycling of the printing material, resulting in less printing material residue

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