Building 3D printing circulating feeding control method and system

Abstract

The invention relates to a building 3D printing circulating feeding control method and system. The method comprises the following steps of in the 3D printing process, monitoring in real time the material liquid level position in a feeding device of a 3D printer and forming material level information; judging whether the obtained material level information reaches the set lowest position or not, and if yes, feeding material to the feeding device until the material level information reaches the set highest position; in the feeding process, acquiring in real time the actual width of printing lines, and calculating the difference value between the actual width of the obtained printing lines and the designed width of the lines according to the designed width of the lines; and judging whether the calculated difference value is within an allowable range or not, and if not, adjusting the travelling speed and/or the discharging speed of the 3D printer so as to enable the difference value to be within the allowable range. According to the control method, real-time detecting, real-time printing and real-time adjusting are realized, so that the quality of 3D printing can be improved by the feedback, and the precision of components formed by printing is improved.

Description

technical field [0001] The invention relates to the field of building construction engineering, in particular to a method and system for controlling 3D printing cycle supply of building materials. Background technique [0002] The material used in architectural 3D printing is cement mortar, which has a large particle size and poor fluidity. Therefore, the width of the track line during actual printing is not completely consistent with the design width and the size of the outlet. [0003] The 3D printer includes a frame and a feeder set on the frame. The frame can move along the three directions of XYZ, so that the 3D printer can move to any desired position in the three-dimensional space. The feeder is provided with a screw rod And the material outlet, through the rotation of the screw rod, the material is sent out from the material outlet and forms a printing line at the printing position. [0004] The amount of material in the feeder has a certain impact on the printing q...

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects of the prior art, provide a method and system for controlling the circulation of building 3D printing materials, and solve the influence of the material amount of the feeder in the existing 3D printer on the quality of 3D printing and the resulting molding effect poor problem

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