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Nozzle device for 3D printing of coarse aggregate concrete

A 3D printing and concrete technology, applied in the field of concrete 3D printing, can solve the problems of small particle size of coarse aggregate and easy blockage, and achieve the effect of solving easy blockage

Inactive Publication Date: 2020-06-09
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Purpose of the invention: the present invention provides a nozzle device for 3D printing coarse aggregate concrete, which solves the problems of small particle size of concrete coarse aggregate printed in existing 3D printing coarse aggregate concrete and easy clogging during printing

Method used

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  • Nozzle device for 3D printing of coarse aggregate concrete
  • Nozzle device for 3D printing of coarse aggregate concrete
  • Nozzle device for 3D printing of coarse aggregate concrete

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Embodiment Construction

[0018] see Figure 1 to Figure 3 , the nozzle device for 3D printing coarse aggregate concrete according to an embodiment of the present invention, comprising a conical material barrel 1 with the tip facing downward, a nozzle 2 arranged at the outlet of the material barrel 1, and a nozzle 2 arranged at the outlet of the material barrel 1 and is used to connect the fixed platform 3 with the 3D printing device, and there is also a transmission and mixing mechanism in the barrel 1 that can transport and mix concrete materials.

[0019] The upper side of the barrel 1 is provided with a pump inlet 5 that can be fed into it. The inward end of the pump inlet 5 is connected tangentially to the barrel 1, and the outward end extends outward, and the inside communicates with the barrel 1. .

[0020] The transmission and stirring mechanism includes a screw 6 that is vertically installed in the inner cavity of the barrel 1 and connected to the output end of the gear motor 4, a transmissio...

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Abstract

The invention discloses a nozzle device for 3D printing of coarse aggregate concrete. The device comprises a conical charging barrel with a sharp opening facing downwards, a nozzle arranged at a discharging opening of the charging barrel, and a fixed platform arranged above the charging barrel and connected with a 3D printing device, a conveying and stirring mechanism capable of conveying and stirring concrete materials is further arranged in the charging barrel, and the conveying and stirring mechanism is driven by a speed reducing motor arranged at the top end of the charging barrel. The nozzle device can meet the requirement of 3D printing of the coarse aggregate concrete, and solves the problem of easy blockage during printing; and the rheological property of the concrete can be effectively excited to make the concrete flow, and a special-shaped layer structure can be printed according to different shapes of nozzles.

Description

technical field [0001] The invention relates to the field of concrete 3D printing, in particular to a nozzle device for 3D printing coarse aggregate concrete. Background technique [0002] 3D printing technology is a new type of rapid prototyping and additive manufacturing technology that integrates mathematics, information, machinery, materials and chemistry. Its practical application can greatly save labor costs, energy and resources and improve the accuracy of processed products. And efficiency, thus significantly changing the production mode of the manufacturing industry, is one of the important technical signs in the third industrial revolution. In February 2015, my country issued the "National Additive Manufacturing Industry Development Promotion Plan (2015-2016)" to upgrade additive manufacturing to a national strategy. In August 2016, the Ministry of Housing and Urban-Rural Development's "2016-2020 Construction Industry Informatization Development Outline" proposed ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B1/00B33Y30/00B33Y70/00
CPCB28B1/001B33Y30/00B33Y70/00
Inventor 张云升陈逸东徐宝平石加顺
Owner SOUTHEAST UNIV
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