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.

CN224476335UActive Publication Date: 2026-07-10CHINA CONSTR THIRD ENG BUREAU GRP CO LTD
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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

Technical Problem

Existing 3D printing equipment for concrete has difficulty in setting up reinforcing bars, resulting in low structural strength of precast concrete slabs.

Method used

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.

Benefits of technology

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.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to a 3D printing nozzle for a fiber aerated cement-based large plate, and relates to the field of concrete 3D printing equipment, which comprises a spraying mechanism and a feeding mechanism, the spraying mechanism comprises a mounting plate, a cement nozzle and a cement feeding pipe, the cement nozzle is installed on the mounting plate, one end of the cement feeding pipe is connected with the cement nozzle, and the other end is used for being connected with a concrete pump, and the feeding mechanism is arranged on the mounting plate; the feeding mechanism is used for spraying fibers and making the fibers adhere to the surface of cement. The application has the effect of improving the structural strength of a concrete prefabricated plate.
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