Lower exposure type ceramic photocuring 3D printing equipment and manufacturing method thereof

Abstract

The invention discloses lower exposure type ceramic photocuring 3D printing equipment and a manufacturing method thereof. The lower exposure type ceramic photocuring 3D printing equipment comprises a machine table, a stripping mechanism, a precipitating preventing mechanism, a trough, a printing platform located over the trough, a lifting mechanism driving the printing platform to ascend and descend relative to the trough, and a projector located on the corresponding lower portion of the trough. The stripping mechanism comprises a pivot swing table and a pivot swing driver, the pivot swing table is pivoted on the machine table around a horizontally arranged pivotal shaft, and the pivot swing driver drives the pivot swing table to vertically pivotally swing around the pivotal shaft. The pivot swing driver is mounted on the machine table, and the trough is mounted on the pivot swing table. The precipitating preventing mechanism comprises a circulating pump, a recycling hose and an output hose. The recycling hose is connected between an inlet of the circulating pump and the trough, and the output hose is connected between an outlet of the circulating pump and the trough. The circulating pump is mounted on the machine table and drives photocuring liquid in the trough to circulate. A three-dimensional model and the trough can be separated more easily, and the situation that the photocuring liquid precipitates, and consequently the forming reliability of the three-dimensional model is influenced is avoided.

Description

technical field [0001] The invention relates to the technical field of 3D printing, in particular to a bottom-exposure ceramic photocuring 3D printing equipment and a manufacturing method thereof. Background technique [0002] The principle of light-curing 3D printing is: the photosensitive resin is printed layer by layer according to the pre-designed modeling structure, and the section layer of the object is generated, and at the same time, it is irradiated with light waves of a specific frequency to make it quickly solidified, and each section layer is stacked and bonded. Together, the final 3D model is formed. [0003] At present, in the existing down-exposure photocuring 3D printers, the photosensitive resin is exposed and cured at the bottom of the trough, and after each curing is completed, the printing platform is pulled up to a certain height and then cured. In this cycle, through layer-by-layer exposure and Lifting to generate 3D solids. [0004] However, the disa...

AI Technical Summary

Problems solved by technology

[0004] However, the disadvantages of the existing bottom-exposure light-curing 3D printers are: (1) Since the existing bottom-exposure light-curing 3D printer needs to be directly pulled away from the model after each layer is printed, the entire adhesive surface is stressed at the same time, Therefore, the peeling force that separates the model is large and affects the printing accuracy, and it is easy to break when printing small structures

At the same time, since the ceramic particles are insoluble in the photosensitive resin and have a higher density than the photosensitive resin, they will quickly deposit on the bottom of the trough when standing still, which will prevent the projection from penetrating the trough to cure the resin, and will also make the printed image The density of ceramics is not uniform, so the existing bottom-exposure light-curing 3D printers cannot print ceramic materials well

[0005] Therefore, there is an urgent need for a lower-exposure ceramic light-curing 3D printing equipment and its manufacturing method that can be well adapted to ceramic material printing and has a small peeling force and can print fine structures to overcome the above-mentioned defects.

Images