Multiple cavity laser 3D (three dimensional) printing device

Abstract

The invention discloses a multiple cavity laser 3D (three dimensional) printing device. The multiple cavity laser 3D printing device comprises a laser device component, more than three cavity components, a cavity switching component and a control component, wherein the more than three cavity components are installed on a rotation work platform, the rotation work platform is divided into a preheating station, a printing station and a cooling station along the circumferential direction, the more than three cavity components are driven by the cavity switching component to sequentially reach the preheating station, the printing station and the cooling station, and the laser device component is installed on the printing station. The multiple cavity laser 3D printing device has the advantages of being simple and compact in structure, simplifying operation, greatly improving printing efficiency and the like.

Description

technical field [0001] The present invention mainly relates to the technical field of 3D printing, in particular to a laser 3D printing device adopting a multi-cavity design. Background technique [0002] 3D printing technology is an emerging rapid prototyping technology. Its core is to convert the complex 3D shape of the required workpiece into a combination of simple 2D sections through slicing, so it is unnecessary to use traditional processing machines and molds. It is based on the three-dimensional computer-aided design model of the workpiece. On a computer-controlled rapid prototyping machine, materials are deposited layer by layer along the height direction to form a series of 2D cross-sectional thin slices of the workpiece, and the gap between the slices is formed by laser sintering. Adhere to each other, and finally pile up into a three-dimensional workpiece. [0003] Selective laser sintering is one of the mainstream 3D printing technologies. It uses laser to sele...

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Problems solved by technology

[0004] However, since the cavity in which the printing material is put into the 3D laser printing machine must be heated to a certain temperature before it can be started, the printed object must wait for the cavity to cool naturally before it can be taken out, while the existing 3D printing equipment is a single cavity In this way, the preheating time plus the natural cooling time will take about 5 to 8 hours, resulting in low printing efficiency and wasting a lot of unnecessary time, and the repeated heating method also leads to a waste of resources

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