Novel nozzle device for pile foundation 3D printing concrete and using method
A 3D printing and 3D printer technology, which is applied in infrastructure engineering, construction, additive processing, etc., can solve problems such as difficult discharge, aesthetic impact, and difficult control, and achieve the effect of reducing material viscosity and improving concrete fluidity
Active Publication Date: 2019-02-22
HOHAI UNIV
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Problems solved by technology
At present, the nozzle discharge method of the concrete printer adopts the extrusion discharge method. With the reduction of concrete in the nozzle of the printer and the loss of water, it will become difficult to discharge the material in the later stage.
Moreover, the fluidity of concrete will change with the change of the surrounding temperature environment. Printing large buildings is a long-term process, and the temperature changes greatly during the printing process, which is difficult to control artificially.
Secondly, during the printing process of concrete, for some faults or hollow structures, it is easy to bond, resulting in protruding parts of the structure and affecting the appearance
Method used
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[0037] like figure 1 As shown, the sprinkler device of the present invention includes a raw material delivery pipeline 1, a retarder and a coagulant supplementary pipeline 2, a rotating gear 3, an outer wall of the sprinkler 4, a concrete fluidity detector 5, an inner shaft disc type agitator 6, and an inner shaft of the sprinkler. Shaft 7, retarder replenishment chamber 8, coagulant accelerator replenishment port 9, nozzle inner wall 10.
[0038] Among them, the raw material conveying pipeline 1 is wrapped on the outer wall 4 of the nozzle, and is connected with the outer wall 4 of the nozzle. There is a certain space between the inner wall 10 of the nozzle and the outer wall 4 of the nozzle, which is used to place retarder, coagulant supplementary pipeline 2 and rotating gear 3 On the inner wall 10 of the nozzle, there is a coagulant and a coagulant replenishment port 9, which communicate with the inner space of the nozzle. The concrete fluidity detector 5 is plate-shaped an...
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The invention discloses a novel nozzle device for pile foundation 3D printing concrete and a using method. The building field is combined with the digital modeling field. According to the novel nozzledevice, a computer terminal control system controls connecting components to convey raw material in a raw material box to the 3D printer nozzle device, a 3D printer nozzle starts to work, the parameters in all the aspects of the fluidity of the concrete inside the nozzle are adjusted, after the adjustment is completed, the 3D printer nozzle moves to the original point of a frame to start the formal printing, and the 3D printer nozzle movably prints on the X, Y, and Z axes of the frame. According to the nozzle device, a concrete fluidity detector is added on the inner wall of the nozzle to carry out real-time monitoring on the concrete fluidity; and meanwhile, an environment detector is additionally arranged on a printer. The nozzle adopts a multi-layer closing system, the nozzle can be closed in advance when a hollowed-out structure or a fault structure is printed, and the problems that bonding and protruding parts exist are solved.
Description
technical field [0001] The invention relates to a 3D printer, in particular to a novel spray head device and a usage method for 3D printing concrete on a pile foundation. Background technique [0002] In recent years, 3D printing technology has become an innovative technology that can change the future, and it will have a huge impact on traditional social production. At the same time, the 3D printing construction technology combining 3D printing technology and architecture will surely become a milestone in the development history of the construction industry. [0003] The software configuration required by the concrete 3D printer is basically the same as that of the ordinary PLA material printer, and the main function of the hardware is to cooperate with the computer to complete the execution of the printing process. The hardware part of the concrete 3D printer is mainly distributed in the bottom control part of the printer, mainly including limit switches, motherboards, mo...
Claims
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IPC IPC(8): E02D15/02B33Y30/00B33Y10/00
CPCB33Y10/00B33Y30/00E02D15/02
Inventor 高磊罗易刘汉龙刘爽许蒋鹏罗涵
Owner HOHAI UNIV