Face forming 3D printing device

Abstract

The invention discloses a face forming 3D printing device which is characterized by comprising a liquid containing tank, a processing platform, a driving mechanism and a projection device. The liquid containing tank is used for containing liquid photo-curing materials. The processing platform is provided with a working position located in the liquid containing tank and is a forming supporting platform of a product. The driving mechanism is used for driving the processing platform to move up and down in the liquid containing tank. A projection lens of the projection device is located above the processing platform and used for projecting an image on the processing platform. Compared with the prior art, the face forming 3D printing device has the advantages that a complex control electromechanical system does not need to be used, the cost of the device can be greatly reduced; due to the fact that printing is performed through forming of a projection face, the face forming 3D printing device has higher efficiency compared with a point-by-point printing manner, and time needed in printing the same product by the face forming 3D printing device is only 20% of that needed by an ordinary 3D printing machine; due to the fact that the product is formed layer by layer, the precision of the product is determined by a projection image, and therefore high-precision printing with an error within 0.01mm can be easily achieved.

Description

technical field [0001] The invention relates to lamination manufacturing technology, in particular to a surface forming 3D printing device. Background technique [0002] 3D printing (3D Printing) was first proposed by Jim Bred and Tim Anderson of the Massachusetts Institute of Technology. They designed a device that can bond powder based on an ordinary inkjet printer, which became the earliest 3D printer. In March 2009, at the Roadmap for Additive Manufacturing (RAM) Workshop held in Washington, USA, it was officially determined to use the term Additive Manufacturing (AM) to refer to 3D printing technology. , and made a plan for the development of rapid prototyping technology in the next 10 years. At present, the main laminated manufacturing technologies include Selective laser sintering (SLS), Stereolithography (SLA), Fused Deposition Modeling (FDM) )Wait. Selective laser sintering technology uses high-energy laser beams to sinter various powder materials, and the select...

AI Technical Summary

Problems solved by technology

[0003] However, at present, the introduction of key equipment of rapid prototyping technology is expensive, and the disadvantages of high equipment maintenance price and slow response

However, the production accuracy of low-priced equipment is very unsatisfactory. For example, the equipment costing about 1,500 US dollars has an accuracy of about 0.25mm.

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