Large-format light curing 3D printer

Abstract

The invention discloses a large-format light curing 3D printer, belonging to the technical field of 3D printing. The large-format light curing 3D printer is characterized by comprising a computer control system, an ultraviolet laser, a Z-axis direction moving motor, a Z-axis platform, an x / y axis numerical control system, and a reflector, a liquid storage pool and a liquid supply tank which are loaded on a linear motor, wherein the light beams of the ultraviolet laser vertically irradiate to the reflector which is loaded on the Y-direction moving linear motor, are reflected to the reflector loaded on the Y-direction moving linear motor and finally irradiate to the liquid photosensitive resin surface in the liquid storage pool; the Z-axis platform driven by the Z-axis direction moving motor is arranged in the liquid storage pool; a base supporting plate is arranged above the Z-axis platform; the liquid storage pool is connected with the liquid supply tank by virtue of a pressure control device; and the liquid resin is cured by virtue of ultraviolet laser beams by controlling the motion of the reflector and the Z-axis platform. The invention provides a 3D printer which integrates high processing speed, high molding precision, large molding format, high resin utilization rate and low cost.

Description

technical field [0001] The invention relates to an additive manufacturing (that is, 3D printing) equipment for making a three-dimensional physical model by using laser technology, especially a photocuring 3D printing equipment. Background technique [0002] The currently known 3D printing technology is known as the "third industrial revolution" and is widely used in industrial design, medical treatment, teaching, aerospace and other fields. The mainstream technologies of 3D printing technology include laser stereolithography (SLA), fused deposition modeling (FDM), selective laser melting (SLM), digital light processing (DLP), three-dimensional printing bonding (3DP), etc. [0003] Stereo Lithography Appearance (SLA) is the earliest rapid prototyping process. The light source used in SLA technology is laser, which has the characteristics of single wavelength, small spot size and high power density. Through precise control of the scanning head, It can realize high-speed and h...

AI Technical Summary

Problems solved by technology

It is characterized by not using a laser system, easy to use and maintain, small in size, easy to carry, suitable for office environments and easy to be accepted by the general public, but because it needs to ensure a reasonable match between the extrusion speed and the filling speed during the wire production process, it affects the processing. Speed, the actual contour line of the extruded wire exceeds the ideal contour line area, which affects the precision of the molded part. Compared with SLA, DLP technology precision and printing speed, there is a big gap

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