A continuous 3D printing system

Abstract

The present invention provides a continuous 3D printing system, comprising a light-transmitting window (1), an uncured layer (2), a photosensitive resin (3), a material trough (4), an optical device (5), and a stage (6) , the motor (7) and the cured product (8), the light-transmitting window (1) is located at the bottom of the material trough (4); the photosensitive resin (3) is located inside the material trough (4); the The photosensitive resin (3) contains titanium dioxide nanoparticles and a component that can be photocatalytically degraded into a polymerization inhibitor. Beneficial effects of the present invention: in the process of printing, an uncured layer is formed on the light-transmitting window, which can effectively avoid the mechanical peeling of the cured body of traditional 3D printing and the refilling process of photosensitive resin, and realize continuous printing, so that the printing speed is higher than that of traditional photosensitive resin. 3D printing is fast, which is more than 20 times that of traditional 3D printing; during the printing process, the thickness of the light transmission window is 3 mm to 50 mm thick, and it is not easy to crack and deform under the action of the draft force during the printing process, so the accuracy of the printed products Higher, the printing speed can reach 500 mm / h comparable to the latest CLIP technology.

Description

technical field [0001] The invention relates to a continuous 3D printing system, belonging to the technical field of printing. Background technique [0002] Generally, 3D printing is a technology of manufacturing three-dimensional products by adding materials layer by layer. This technology is a combination of cutting-edge technologies in many fields and is known as the core technology of the "third industrial revolution". Among them, the light-curing 3D printing rapid prototyping process has the characteristics of low energy consumption, low cost, and high forming precision. At present, the traditional photocuring 3D printing technology finally obtains a 3D entity by layer-by-layer stacking. This method makes the accuracy of the printed product restricted by the layer thickness; Long print cycles due to photoresin leveling time (top-down printing) or the need to mechanically peel the cured layer from the tank inner floor and resin refill (bottom-up printing). [0003] Mor...

AI Technical Summary

Problems solved by technology

At present, the traditional photocuring 3D printing technology finally obtains a 3D entity by layer-by-layer stacking. This method makes the accuracy of the printed product restricted by the layer thickness; Long print cycles due to photoresin leveling time (top-down printing) or the need to mechanically peel the cured layer from the tank inner floor and resin refill (bottom-up printing)

However, there are no reports on photosensitive resin systems specifically for continuous 3D printing

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