Online component-variable photocuring 3D printing device and method

Abstract

The invention relates to the technical field of 3D printing, in particular to an online component-variable photocuring 3D printing device and method. The device comprises a base, a laser generation module, an injection pump, two or more injectors, a material mixing and feeding mechanism, an X-axis moving module, a scraper, a Y-axis moving module, a printing platform and a Z-axis moving module, wherein the laser generation module, the injection pump, the injectors, the material mixing and feeding mechanism, the X-axis moving module, the scraper, the Y-axis moving module, the printing platform and the Z-axis moving module are mounted on the base. The injection pump drives the injectors to achieve material conveying, discharging ports of the injectors communicate with a material mixing cavity in the material mixing and feeding mechanism through a pipe body, the X-axis moving module drives the material mixing and feeding mechanism to move so that a discharging port of the material mixing and feeding mechanism can move to the position above the printing platform, the Y-axis moving module drives the scraper to move to slick materials on the printing platform, the Z-axis moving module drives the printing platform to move up and down, and a laser printing opening of the laser generation module is formed above the printing platform. By means of the device and method, printing to high-viscosity materials can be achieved, and multiple kinds of materials can be printed according to different proportions.

Description

technical field [0001] The invention relates to the technical field of 3D printing, in particular to an online variable component photocuring 3D printing device. Background technique [0002] 3D printing, also known as additive manufacturing, is a manufacturing method based on the idea of ​​discrete accumulation and accumulation of materials. This technology is supported by computer-aided design, with the help of digital model files, combined with software and numerical control for physical manufacturing. As a mature 3D printing technology, stereolithography technology (Stereo Lithography Apparatus, SLA) has developed rapidly due to its advantages of high forming efficiency and good effect. Extremely many applications and application potential. [0003] Stereo-curing forming technology is based on the forming technology of liquid materials. Using the self-leveling properties of materials, under the action of laser, it is solidified layer by layer through point lines and sur...

AI Technical Summary

Problems solved by technology

[0005] In addition, since the traditional SLA is fed in the form of a material box, this forming technology can only realize the printing of a single material ratio, that is, the material ratio cannot be changed during the forming process, which limits the multi-material printing of some parts

Due to its performance advantages, multi-material mixing technology is more suitable for industrial development, and more in line with the requirements of today's development and production performance. At present, multi-material light-curing molding is mostly fed in the form of multi-material boxes, such as the invention patent CN202010611819.7. Multi-resin tanks are converted to realize the molding of various low-viscosity materials. It is difficult to change the material ratio in real time during the molding process, and it is even more difficult to realize high-viscosity multi-material molding

As an emerging manufacturing technology, Direct Ink Writing (DIW) can control the quantitative extrusion of slurry and transport high-viscosity materials. It has a variety of materials, high production flexibility, and low requirements on the processing environment. Advantages, but the forming accuracy is limited by the nozzle diameter and material, it is difficult to achieve fast and high-precision parts forming

Images