Horizontal type digital light procession (DLP) projection technology surface exposure forming device and method

Abstract

The invention discloses a horizontal type digital light procession (DLP) projection technology surface exposure forming device and method. The device mainly comprises a DLP projection system, a quartzglass plate, a resin liquid tank, an impeller, a printing platform, an X-direction moving system including an X-direction motor, an X-direction screw rod, and an X-direction guide rod, a Z-directionlifting system including a Z-direction motor, a Z-direction screw rod, and a Z-direction guide rod, and a politef film coated on the inner surface of quartz glass. The DLP projection system is installed on the right side surface of the resin liquid tank, and a square window is opened on the right side of the resin liquid tank and is provided with the quartz glass transmitting the ultraviolet lightsource emitted from the DLP projection system into the resin liquid tank; and the printing platform is driven by the X-direction moving system to perform left and right translation, the politef filmis installed on the quartz glass inside the resin liquid tank, the impeller is installed under the quartz glass plate inside the resin liquid tank, the Z-direction lifting system drives the X-direction moving system and the printing platform to move upwards after superposition production of a 3D model is completed, and the model is taken out. The horizontal type DLP projection technology surface exposure forming device and method can significantly reduce the forming time and effectively improve the printing quality of surface exposure rapid forming.

Description

technical field [0001] The invention belongs to the technical field of rapid prototyping manufacturing devices, and in particular relates to a horizontal DLP projection technology surface exposure forming device and method. Background technique [0002] SLA (Stereo Lithography Appearance) is the earliest rapid prototyping technology, using liquid photosensitive resin raw materials. The process is as follows: first design a three-dimensional physical model through CAD, use a discrete program to slice the model, and design a scanning path. The generated data will precisely control the movement of the laser scanner and the lifting table; the laser beam is controlled by a numerical control device. The scanner irradiates the surface of the liquid photosensitive resin according to the designed scanning path, and after a layer of resin in a specific area of ​​the surface is cured, a two-dimensional cross-section of the entity is generated when a layer of processing is completed; th...

AI Technical Summary

Problems solved by technology

When the top-down projection is working, after each time the photosensitive resin is irradiated from the top, the next exposure surface must be refilled and scraped, which results in a long molding time and affects the molding efficiency.

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