Surface exposure forming device of high viscosity material

Abstract

The invention discloses a surface exposure forming device of a high viscosity material, which comprises a processing system, an exposure system and a control system, wherein the processing system is a mechanism part of the surface exposure forming device; a working table support is fixed on a Z-axis translation table fixed on a rack; a tension and pressure sensor, a precise inclinator and a working table are fixed on the worktable support; the rack is articulated with a material groove rotating table; the rotating table can allow a material groove to do quick complete cycle rotating movement; by matching with a material recoating mechanism fixed on the rotating table, a material in the material groove can be recoated and slicked; by matching with the exposure system and the control system, the material in the material groove can be solidified; and after each material layer is solidified, a cam mechanism allows the whole rotating table to incline downward by a certain angle around a hinge of the rotating table, to allow the solidified material layer to be delaminated from the bottom of the material groove. The surface exposure forming device can solve the problems that the forming of the high viscosity material is difficult in a forming material light solidification process and the precision of the formed high viscosity material is poor at present.

Description

technical field [0001] The invention belongs to the field of light-curing molding additive manufacturing within the scope of advanced manufacturing technology. In particular, it relates to a surface exposure molding device for high-viscosity materials. Background technique [0002] Additive manufacturing technology is an emerging advanced manufacturing technology in the past 30 years. This technology can manufacture some parts that are difficult to process by traditional processing methods, and has been widely used in many fields. Among them, photocuring technology is the earliest commercialized additive manufacturing technology. This technology manufactures each layer of the part by controlling the exposure path or exposure shape, and then consolidates the layers together to form the final part. This technique is characterized by high manufacturing precision. [0003] There are many materials that can be used for photo-curing processing, but ordinary photo-curing equipmen...

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Problems solved by technology

[0003] There are many materials that can be used for photocuring processing, but ordinary top-down exposure photocuring equipment requires good material fluidity, that is, low viscosity, so that when curing the next layer, the layer thickness of the liquid material above the cured layer can be It is guaranteed by the natural leveling of the scraper and the liquid, but if the material to be cured is a high-viscosity material, the thickness of each layer is difficult to control precisely, so it is difficult to directly apply it to the existing light curing equipment to form high-precision Parts, resulting in limited application of light-curing molding technology in this range

For example, in the fields of casting molds and biological scaffolds, ceramic slurries with high solid content are usually required to form ceramic parts with complex shapes or complex internal structures, but the high viscosity of ceramic slurries with high solid content makes processing difficult , the processing failure rate is high, and the dimensional accuracy and surface roughness of the manufactured parts are difficult to guarantee

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