Fiber-reinforced multi-spray-head cement paste 3D printing machine

Abstract

The invention relates to a fiber-reinforced multi-spray-head cement paste 3D printing machine which comprises a gantry type frame, an axis X, an axis Y, an axis Z, a fiber composite spray head, a highpolymer material spray head, a cement paste spray head, a material guide pipe, a pressure pump and a storage pond. The high polymer material spray head prints the outer contour of a three-dimensionalmodel through a layer-by-layer overlapping manner. After the cement paste spray head prints the contour of certain layer height on the high polymer material spray head, cement paste with the volume space equal to that of the contour of a shell is fast extruded, and the three-dimensional model is filled. After the continuous fiber spray head achieves filling of cement of certain layer thickness, continuous fiber materials are laid on the surface of the cement, and the forming performance of the cement paste is enhanced. After printing is completed, the plastic shell is removed through a hot melting manner, and a cement model is obtained. The fiber-reinforced multi-spray-head cement paste 3D printing machine is low in material cost, high in forming precision and forming performance and goodin surface quality, multiple material characteristics can be adjusted and controlled easily, and the fiber-reinforced multi-spray-head cement paste 3D printing machine is used for direct forming of products such as landscape architecture and artwork and has wide application prospects.

Description

technical field [0001] The invention relates to a multi-nozzle cement slurry 3D printer for fiber reinforcement, which belongs to the technical field of additive manufacturing. technical background [0002] 3D printing is known as a technology that "promotes the third industrial revolution" due to its advantages of not being limited by structural complexity and integrated molding. It is widely used in aerospace, machinery manufacturing, handicrafts, education and teaching and other fields. Among them, in the fields of landscape and handicraft design, the "what you see is what you get" method can quickly transform ideas into reality, greatly speeding up product development. [0003] At present, materials such as polylactic acid, gypsum, and resin are mostly used for 3D printing for rapid prototyping of artworks. There are disadvantages such as weak material performance, high printing cost, and difficulty in long-term storage outdoors. In the field of 3D printing, cement mat...

AI Technical Summary

Problems solved by technology

For small landscapes or handicrafts, cement mortar materials have problems such as low precision and poor surface quality; while traditional 3D printing of cement paste based on FDM (Fused Deposition Molding, fused deposition) technology has low performance, solidification time, and model structure. It is difficult to coordinate the characteristics and printing speed, and the accuracy of material solidification characteristics is required to be high.

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