Rapid curing device for ceramic 3D printing materials

Abstract

The invention belongs to the technical field of 3D printing equipment, and particularly relates to a rapid curing device for ceramic 3D printing materials. The rapid curing device includes an extrusion tube and a tightening tube fixed to the bottom end of the extrusion tube. A feed inlet is formed in the top end of the extruding tube, and the top end of the extruding tube is fixedly connected witha feeding tube corresponding to the feed inlet. A guide mechanism is installed in the extruding tube. When the central part of a material is in contact with exchange tubes, heat exchange is performedwith the exchange tubes, the temperature of the center of the material is reduced, the temperature of the outer layer of the material is higher, and the material remains sticky. The interior of the material is cured in advance due to a lower temperature, and the strength is higher. Meanwhile, no gap is caused in the material, the integrity is maintained, a phenomenon of self-stripping can not occur, and the strength of the material is ensured. A plurality of first refrigeration sheets can cool the inner side of the material to cool the material, the multiple first refrigeration sheets are matched with the exchange tubes to increase the effective diameter of the material which is internally cooled, and meanwhile, the stickiness of the outer layer of the material is ensured.

Description

technical field [0001] The invention belongs to the technical field of 3D printing equipment, and in particular relates to a rapid solidification device for ceramic 3D printing materials. Background technique [0002] 3D printer, also known as three-dimensional printer (3DP), is a cumulative manufacturing technology, that is, a machine of rapid prototyping technology. It is based on a digital model file and uses special wax, powdered metal or plastic to bond Materials, by printing layers of adhesive materials to manufacture three-dimensional objects, at this stage 3D printers are used to manufacture products, the technology of constructing objects by printing layer by layer, 3D printing of ceramic parts includes configuring ceramic slurry, drawing 3D model and slicing, 3D printing, sintering and other processes. [0003] The publication number is CN107618092A Chinese patent discloses a fast curing device for ceramic 3D printing materials. This patented technology can use th...

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Problems solved by technology

[0003] The publication number is CN107618092A. The Chinese patent discloses a fast curing device for ceramic 3D printing materials. This patented technology can use the deformable discharge nozzle structure to realize the temperature of the inner and outer layers of the printed material or the material properties or to speed up the printing of the slurry at the same time. The surrounding air flow speeds up the evaporation and solidification of water. However, when the materials are extruded, they are separated and extruded. After extrusion, the outer layer of materials needs to be bonded to the surface of the inner layer of materials, while the surface of the inner layer of materials is cooled. After that, it will solidify in advance and the adhesion will be reduced. Due to the influence of the wall thickness of the pipe, there may be a gap between the outer layer and the inner layer. After the material is cooled as a whole, the material shrinks and the gap decreases. Under the action of air pressure, There may be a phenomenon of self-peeling, and the strength is reduced

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