Light-cured quick forming device and method based on reflection-type liquid crystal light valve

Abstract

The invention discloses a light-cured quick forming device on the basis of a reflection-typed liquid crystal light valve, comprising a computer which is respectively connected with an image generator and a peristaltic pump; the peristaltic pump is communicated with a resin trough; the resin trough is internally provided with a lifting workbench which moves along the internal wall; the image generator is arranged above the lifting workbench. The method which uses the device for quickly forming the part comprises the steps as follows: 3D model of the part required to be formed is divided as layers by the computer; each sub-layer section data is gained; furthermore, the data is sent to the image generator; the image generator generates the optical digital views of each sub-layer section of the part according to the received data; furthermore, the optical digital view is projected to liquid photosensitive resin layer which is exposed and solidified, thus forming the light-cured resin layer of the current section of the part; the steps are repeated till the forming of the part is completed. The method of the invention has the advantages of low cost, high precision, high forming efficiency, simple process, etc.

Description

technical field [0001] The invention belongs to the technical field of optical three-dimensional molding manufacturing, and relates to a photocuring molding device, in particular to a photocuring rapid prototyping device based on a reflective liquid crystal light valve, and also relates to a method for using the device to perform photocuring molding of parts. Background technique [0002] The rapid prototyping technology of parts is an advanced manufacturing technology that uses the principle of material additive forming to directly produce the solid part according to the three-dimensional CAD model of the required forming part. [0003] The currently used rapid prototyping methods mainly include Stereolithography, LOM, SLS, FDM and 3D-Printer. [0004] The photocuring method uses the principle that photosensitive resin is cured after being irradiated by ultraviolet laser to carry out material additive molding. It has the characteristics of high molding precision, good surfa...

AI Technical Summary

Problems solved by technology

[0010] In the devices disclosed in the above-mentioned prior art, the projectors or projectors used all use liquid crystal baffles LCD and digital micromirror baffles DMD, and the resolution is relatively low.

Images