Apparatus and method for preparing a building structure with 3D printing
US11440217B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 19, 2019 |
| Grant date | Sep 13, 2022 |
| Priority date | — |
| Expiry date | May 19, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB33Y40/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Provided is an apparatus for preparing a building structure with 3D printing, comprising: a 3D printing device (1), having a storage chamber (11) and a printing head (12) connected to the storage chamber (11) and being movable relative to a base frame; and a reinforcing device, movably disposed relative to the base frame, and having a driving mechanism (3) for driving short rebars or short ribs to perform an insertion movement in a direction intersected with a stacking direction of a cement-based slurry layer; the driving mechanism inserts the short rebars or the short ribs into an interlayer interface spanning at least two adjacent cement-based slurry layers printed by the 3D printing device (1). Also provided a method for preparing a building structure with 3D printing. There is no printing gap between the cement-based slurry layer printed by the apparatus and the inserted rebars, ensuring a tight connection between the cement slurry and the rebars, so that the mechanical properties and toughness of the interlayer interface between the cement-based materials of the 3D printing are truly improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.