3D printing device and technique for forming large products

Abstract

The invention discloses a 3D printing device and technique for forming large products. The printing device mainly comprises an injection system, a data conversion and control system, a 3D movement system, a forming system and a microwave heating system. The injection system mainly comprises a glue storing box and a nozzle. The data conversion and control system is mainly composed of a movement control card and a data storage. The 3D movement system is mainly composed of an X-direction movement mechanism, a Y-direction movement mechanism, a Z-direction storage cavity movement mechanism and a Z-direction forming cavity movement mechanism. The forming system is mainly composed of a storage cavity, a storage cavity piston, a forming cavity, a forming cavity piston and a paving roller. The microwave heating system is mainly composed of a heating cavity and a temperature controller. The printing process only involves binding of glue and particle materials, microwave heating is adopted for a heating part, the interiors and exteriors of printed products can be heated at the same time, and finally the products with the interiors uniformly filled are formed. The 3D printing device and technique for forming large products are high in forming speed, the technique is simple, limitation of printed materials is small, and the 3D printing device and technique can be used for forming large products.

Description

technical field [0001] The invention relates to a 3D printing device and process, in particular to a 3D printing device and process that can be used to form large-scale products. Background technique [0002] Rapid prototyping technology (also known as rapid prototyping manufacturing technology, Rapid Prototyping Manufacturi-ng, referred to as RPM), also known as 3D printing. This technology manufactures entities in a layer-by-layer manner through molding equipment based on the three-dimensional model data of the object. This technology can overcome the special structural obstacles that cannot be realized by traditional mechanical processing at present, and can realize the simplified production of arbitrary complex structural parts. The existing 3D printing technologies are mainly divided into fused deposition modeling (FDM), stereolithography (SLA), selective laser sintering (SLS), stereolithography (SLA), three-dimensional jet printing (3DP) and digital light processing. ...

AI Technical Summary

Problems solved by technology

The disadvantage of the screw plasticizing conveying printer is that the process parameters of the printed material are difficult to adjust accurately, and the temperature fluctuation of the screw heating section and the unevenness of the flow rate in the barrel will directly affect the accuracy of the printed product

Although the heating nozzle fused filament 3D printer can guarantee the printing accuracy to a certain extent, the printing material can only be filament and the size and power are very small, so there are restrictions on the types of printing materials, the printing speed is too slow, and it cannot form large-scale 3D printers. product disadvantages

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