Rapid light curing DLP 3D printing device

Abstract

The invention discloses a rapid light curing DLP 3D printing device. The rapid light curing DLP 3D printing device comprises a machine frame and a light source, a reflector, a resin groove supportingplate, a resin groove and a Z-axis motion module, wherein the light source, the reflector, the resin groove supporting plate, the resin groove and the Z-axis motion module are installed on the machineframe. The light source and the reflector are located on a lower layer of the machine frame, the resin groove supporting plate is installed on an upper layer of the machine frame, the resin groove islocated right above the reflector, and the Z-axis motion module is connected with a motion molding platform. The center point of the lower surface of the motion molding platform coincides with the center point of the resin groove, and a microporous transparent film through which air can pass is arranged at the bottom of the resin groove. Air is used as a polymerization inhibitor, so that a molding dead zone is formed between the resin groove and the bottom surface of molding resin, so that the resin cannot adhere to the resin groove in the curing molding process of the resin, repeated tearingup and down of the molding platform is not required, and the resin can be continuously pulled up and quickly printed. Microporous glass or a microporous plastic film is used in the microporous transparent film, the air is used as the polymerization inhibitor, oxygen ions are not required to be prepared and a special oxidation and penetration window is not required, so that the input and use costof equipment is greatly reduced.

Description

technical field [0001] The invention relates to a 3D printing device, in particular to a fast photocuring DLP 3D printing device. Background technique [0002] In today's society, traditional industrial production processes are sometimes difficult to meet the needs of industrial production. As a new 3D printing method, light curing can effectively solve the above problems. As a method of additive manufacturing, 3D printing has better development prospects than industrial subtractive manufacturing. Now light curing technology has been applied to various fields, including aerospace, construction, medical treatment, abrasive tool manufacturing and so on. [0003] The early light-curing molding technology used SLA for curing, and the printing speed was slow and the precision was not high. However, the printing speed and printing accuracy were greatly improved by using DLP for light-curing molding. However, when printing with this technology equipment, the working platform needs...

AI Technical Summary

Problems solved by technology

However, the oxygen ion exchange membrane is expensive, and there is currently no domestic technology for processing the transparent ion exchange membrane, and foreign AF2400 transparent ion exchange membranes cannot be purchased.

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