Photo-sensitive material solidification layer forming method in 3D (three-dimensional) printing and structure for implementing such method

Abstract

The invention relates to a photo-sensitive material solidification layer forming method in 3D (three-dimensional) printing and a structure for implementing such method. The method includes disposing a photo-sensitive material in a horizontally rotatable container, and rotating the container when the photo-sensitive material forms a solidification layer under irradiation of a light source, wherein the container moves downwards while rotating so as to be separated from the solidification layer and then moves upwards to restore so as to achieve solidification of next solidification layer. The structure comprises a light source component, a liftable printout lifting plate and the round container mounted on a rotatable seat, and a specially designed orbital groove in the rotatable seat controls the round container to ascend and descend. The photo-sensitive material solidification layer forming method in 3D printing and the structure for implementing such method have the advantages that one-by-one forming of the solidification layers is achieved through ascending and descending of the container for holding the photo-sensitive material during rotating, so that shear force and frictional force generated by horizontal movement are avoided, and printout deformation, printout layer shedding and printed layer dislocation are reduced.

Description

technical field [0001] The present invention relates to the field of 3D printing. Background technique [0002] The basic structure of the current SLA and DLP 3D printing is computer 3D modeling software, control panel, light source, photosensitive material (liquid state), square liquid container, printing object attached to the lifting plate; the basic principle is to cure photosensitive material layer by layer. Object; mode of operation: computer 3D modeling slice, directly connected to the light source equipment through the control panel or computer, the photosensitive material is placed in a square liquid container, the bottom of the liquid container is transparent, and there is a small gap between the lifting plate and the square liquid container. It is a liquid photosensitive material. When a sliced ​​picture is projected by the light source and passes through the bottom of the square liquid container, the photosensitive material in the gap between the lifting plate an...

AI Technical Summary

Problems solved by technology

[0004] In the above method of photosensitive material 3D printing, the following phenomena will occur during the printing process: lack of material, deformation, layer drop, failure to form, misalignment of the printing layer, low precision of the printed object, adhesion of debris on the isolation film at the bottom of the square liquid container, isolation Membrane damage, etc.

These shortcomings have led to slow promotion of 3D printing using photosensitive materials, so there is a need for improvement

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