3D printing nozzle for fiber aerated cement-based large panels
By incorporating cement nozzles and a feeding mechanism into the spraying mechanism of a concrete 3D printing equipment, the fiber is mixed with cement, thus solving the problem of low structural strength in precast concrete slabs and achieving high strength and improved air quality in concrete components.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA CONSTR THIRD ENG BUREAU GRP CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-07-10
AI Technical Summary
Existing 3D printing equipment for concrete has difficulty in setting up reinforcing bars, resulting in low structural strength of precast concrete slabs.
The spraying mechanism is equipped with cement nozzles and a feeding mechanism. While the cement nozzles spray out cement mortar, the feeding mechanism sprays fibers onto the cement surface, allowing the fibers to mix into the concrete components, thereby improving the structural strength.
By incorporating fibers into concrete components, the structural strength of the concrete components is significantly improved, and the air quality at the work site is maintained through a recycling system.
Smart Images

Figure CN224476335U_ABST