Differential photocuring 3D printing equipment for polymer melt

Abstract

The invention discloses differential photocuring 3D printing equipment for a polymer melt. The differential photocuring 3D printing equipment is composed of a material supply unit, a resin differential array unit and a three-dimensional forming unit. Photosensitive resin is taken as a raw material, and a melt differential technology and a photocuring technology are taken as a basis. According to the differential photocuring 3D printing equipment disclosed by the invention, a working manner of microdroplet stacked surface forming capable of controlling the opening and the closing of each sprayhead independently is adopted, a three-dimensional model is processed by a system control board, the opening condition or the closing condition of each micropore spray head in a printing process for each layer is planned, and in the printing process, a synthetic resin solution flows through the resin differential array unit and is ejected from the open micropore spray heads in the form of microdroplets and deposited on the surface of a forming platform under the co-action of accurately controlling air pressure to push downwards, applying an electric field force to drag and controlling the opening and the closing of the micropore spray heads. An UV ultraviolet lamp strip with a rectangular outline and located below a forming plate is irradiated inwards in a direction parallel to a metal array pore plate to cure the deposited resin microdroplets, and the cycle repeats, so that large high-accuracy three-dimensional forming can be realized.

Description

technical field [0001] The invention relates to the field of 3D printing rapid prototyping, in particular to a closed-loop controlled polymer melt differential photocuring 3D printing device capable of working simultaneously with multiple nozzles. Background technique [0002] 3D printing technology is also called additive manufacturing technology. Photocuring stereolithography technology is one of 3D printing technologies, which relies on the rapid curing phenomenon of photosensitive resin under ultraviolet light to achieve three-dimensional molding of target components. For the existing photo-curing three-dimensional molding device, the size of the printed product is limited due to the limitation of the size of the projection equipment, the surface accuracy is low, and the time for stripping and curing during printing is long, so that it cannot achieve high efficiency and high speed. High precision industrialization requirements. Contents of the invention [0003] Aimi...

AI Technical Summary

Problems solved by technology

For the existing photo-curing three-dimensional molding device, the size of the printed product is limited due to the limitation of the size of the projection equipment, the surface accuracy is low, and the time for stripping and curing during printing is long, so that it cannot achieve high efficiency and high speed. High precision industrialization requirements

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