CONSTRUCTION PRINT HEAD OF 3D PRINTER Russian patent published in 2023 - IPC E04G21/04 B41J2/335 

FIELD: construction.

SUBSTANCE: print head of a construction 3D printer, which acts as a mixer-extruder, as well as construction three-dimensional printing of products using additive method from multicomponent mixtures for the purpose of manufacturing construction structures used, in particular, for the construction of residential houses, buildings and structures for various purposes, the manufacture of parts and elements of buildings, parts of building structures from concrete or other construction mixtures. The print head contains a housing in which three storage hoppers are installed, each of which has a mixing and concrete mixing shaft. In this case, the supply part of each shaft is made in the form of a rotor of a gerotor pair, and each shaft has its own drive, respectively. Storage bins are made with the possibility of moving in the same plane relative to each other, and replaceable nozzles are installed on each stator of each gerotor pair of each bin, respectively.

EFFECT: increase in the speed of printing the walls of the building, improvement of the thermal properties and the strength characteristics of the printed walls.

4 cl, 1 dwg