SLA photo-curing 3D printing device

Abstract

The invention discloses an SLA photo-curing 3D printing device. A machine body is included, and is provided with a machine door capable of being opened or closed; a resin groove is formed in the machine body, and liquid state resin is placed in the resin groove; a scraper for flattening the upper surface of the liquid state resin in a scraping manner and a scraper moving mechanism driving the scraper to move are further installed on the resin groove; a supporting plate is arranged in the resin groove, and is upwardly provided with a supporting base; a metal plate is arranged on the supportingbase, and is provided with a leaking hole; a supporting plate moving mechanism used for driving the supporting plate to ascend or descend is arranged in the machine body; at least two light sources are arranged at the upper end in the machine body, and are arranged on a light source moving mechanism; a controller is further included; and the scraper moving mechanism, the supporting plate moving mechanism and the light source moving mechanism are all electrically connected with the controller. The SLA photo-curing 3D printing device has the beneficial effects that printing is performed, multi-laser-head printing is performed, and automatic liquid supplementing is performed.

Description

technical field [0001] The invention relates to the technical field of 3D printing, in particular to an SLA photocuring 3D printing device. Background technique [0002] SLA is the abbreviation of "Stereo Lithography Apparatus". It is the first rapid prototyping (RP) technology that appeared and commercialized in the world, and it is also one of the most researched and widely used rapid prototyping technologies. Its technology is based on the principle of photopolymerization of liquid photosensitive resin, which is professionally translated as "stereolithography". Design a three-dimensional solid model through CAD, use the discrete program to slice the model, design the scanning path, and the generated data will accurately control the movement of the laser scanner and the lifting platform; the laser beam passes through the scanner controlled by the numerical control device, and scans according to the design The path irradiates the surface of the liquid photosensitive resin ...

AI Technical Summary

Problems solved by technology

[0003] The existing 3D printing equipment is only equipped with one light source. During the printing process, only one light source can move back and forth according to the preset path for printing. The printing efficiency is low and the time is long. If the workpiece size is large, it needs to print continuously for several days. During the process, manual observation is required to add the amount of liquid resin, which seriously increases the labor burden of workers. After printing, manual blanking is required, which is high in strength, low in efficiency, and low in automation, which cannot meet the existing production requirements. Require

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