Resin heating and drying system of photo-curing rapid forming equipment

Abstract

The invention discloses a resin heating and drying system of photo-curing rapid forming equipment. The resin heating and drying system comprises a resin groove, a closed working chamber and an air heating and injection control device, wherein an interlayer is arranged between an inner cavity and an outer cavity of the resin groove, an interlayer air inlet is arranged on the bottom part of the resin groove, and an interlayer exhaust passage is arranged above the resin groove; the closed working chamber a hollow cavity body which is arranged above the resin groove and is in sealed connection with the resin groove, and the top part of the closed working chamber is provided with a working chamber exhaust port; and hot air output by the air heating and injection control device is injected into the interlayer through the interlayer air inlet, flows in the interlayer, is discharged into the closed working chamber through the interlayer exhaust passage, then is discharged by the working chamber exhaust port, and is input into the air heating and injection control device for heating circulation. The resin heating and drying system can realize omnibearing uniform heating and thermostatic control in six directions of resin in the resin groove, ensures that the resin temperature on a light beam scanning plane is kept at an ideal set value, and simultaneously can prevent a photosensitive resin from being exposed in air for along time to absorb moisture in the environment.

Description

Technical field [0001] The invention belongs to the technical field of rapid prototype manufacturing, and mainly relates to a resin heating and drying system of a light curing rapid prototyping equipment used in a light curing rapid prototyping process. Background technique [0002] Rapid prototyping technology is a new type of molding technology based on digital superimposition manufacturing. It can quickly, directly and accurately transform design ideas into design samples with certain functions or parts (workpieces) that can be directly assembled and used. Effectively shortening the product development cycle is a powerful tool to improve product quality and reduce product development costs. Light-curing rapid prototyping technology is based on the layered data of the workpiece CAD three-dimensional design model, using specific wavelength ultraviolet light to irradiate the photosensitive resin in a certain way to quickly cure the required part (workpiece). For example, laser c...

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Problems solved by technology

[0008] The purpose of the present invention is to overcome the shortcomings of uneven heating in the prior art, and propose a resin heating and drying system for light-curing rapid prototyping equipment, which can realize omnidirectional and uniform heating and constant temperature control of the resin in the resin tank in six directions, and ensure beam scanning The temperature of the resin on the surface is maintained at an ideal set value, and at the same time, it can prevent the photosensitive resin from being exposed to the air for a long time to absorb moisture in the environment

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