US 12,188,245 B2
Construction equipment for a 3D weaving and printing integrated structure
Hailong Wang, Hangzhou (CN); Xiaoyan Sun, Hangzhou (CN); and Zhennan Wu, Hangzhou (CN)
Assigned to ZHEJIANG UNIVERSITY, Hangzhou (CN); and XUZHOU JIANYAN INTELLIGENT CONSTRUCTION TECHNOLOGY CO., LTD, Xuzhou (CN)
Appl. No. 18/039,277
Filed by ZHEJIANG UNIVERSITY, Hangzhou (CN); and XUZHOU JIANYAN INTELLIGENT CONSTRUCTION TECHNOLOGY CO., LTD, Xuzhou (CN)
PCT Filed Nov. 18, 2022, PCT No. PCT/CN2022/132726
§ 371(c)(1), (2) Date Jun. 1, 2023,
PCT Pub. No. WO2023/093619, PCT Pub. Date Jun. 1, 2023.
Claims priority of application No. 202111412981.7 (CN), filed on Nov. 25, 2021.
Prior Publication US 2024/0076886 A1, Mar. 7, 2024
Int. Cl. E04G 21/04 (2006.01); B28B 1/00 (2006.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 50/02 (2015.01); B33Y 70/10 (2020.01)
CPC E04G 21/04 (2013.01) [B28B 1/001 (2013.01); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 70/10 (2020.01); B33Y 50/02 (2014.12)] 6 Claims
OG exemplary drawing
 
1. A construction method by using a 3D weaving and printing integrated structure construction equipment, the construction method comprising:
(1) based on mechanical and collaborative properties of printing matrix and reinforcement materials, as well as anisotropy of macroscopic properties thereof after molding, using an algorithm to optimize a spatial topology of a structure and determine a three-dimensional digital design model of a building;
(2) according to differences between a printing matrix material and a traditional concrete material, differences between a rope/wire/cable and traditional reinforcement material, and differences between printing and weaving process characteristics and traditional structural construction, designing a 3D digital model of the structure for a printing and weaving process, and determining specific printing and weaving parameters including weaving density, weaving positioning nodes, tensioning quantity, tensioning angle, and tensioning stress; setting dynamic control, mechanical control, and electromagnetic control parameters, determining an integrated construction process of printing and weaving;
(3) metering and mixing aggregates, admixtures, and additives according to a preset mix ratio and process flow, using a printing matrix material preparation device to prepare the printing matrix material, and positioning and stacking prepared 3D printing matrix raw materials for molding through a printing matrix extrusion device; and
(4) during the printing process, a wire pushing and spatial anchoring device using a nail to position and tow the rope/wire/cable in a pre-designed parallel printing direction for continuously weaving integrated in a vertical direction, an electromagnetic guided shuttle dropping device forming a ray/rope/cable to a spatial grid through staggered weaving along longitude and latitude directions; according to the structural stress and deformation design, using a tensioning traction device to carry out spatial multi-directional prestress tensioning on the rope/wire/cable along the longitude and latitude directions, forming a spatial three-dimensional woven structure;
wherein the 3D weaving and printing integrated structure construction equipment comprises:
the printing matrix material preparation device, processing the printing matrix raw materials and then delivering them to the printing matrix extrusion device;
the printing matrix extrusion device, having the functions of promoting extrusion and lamination molding, and printing matrix;
the wire pushing and spatial anchoring device, using the nail to position and tow the rope/wire/cable for continuously weaving to the matrix layer by layer in the vertical direction;
the electromagnetic guided shuttle dropping device, weaving the rope/wire/cable material along the longitude and latitude directions;
a locking device, positioning and fixing the rope/wire/cable woven along the longitude and latitude directions; and
the tensioning traction device, performing spatial multi-directional prestress tensioning on the rope/wire/cable woven along the longitude and latitude directions;
wherein, the wire pushing and spatial anchoring device comprises a drive wire shaft, a driven wire shaft, and a nail-shooting storehouse, the drive wire shaft and the driven wire shaft constitute a rotating wheel group that mechanically drives the pushing of the rope/wire/cable, the drive wire shaft simultaneously serves as a multi-point ejection turntable, driving the wire into the nail-shooting storehouse to connect with an anchor nail, and then continuously weaving the rope/wire/cable into the printing matrix layer by layer in the vertical direction.