Apparatus and method for preparing a building structure with 3D printing

An apparatus for preparing a building structure with 3D printing, comprising:

• a 3D printing device, having a storage chamber and a printing head connected to the storage chamber and being movable relative to a base frame;
• and
• a reinforcing device comprising a cutting component having at least one cutter head for cutting a long rebar or long rib into a short rebar or short rib, movably arranged relative to the base frame and having one driving mechanism for driving a rebar or rib to perform a vertical insertion movement in a direction perpendicular to a stacking direction of a cement-based slurry layer;
• the driving mechanism vertically inserting the rebar or rib into an interlayer interface spanning at least two adjacent cement-based slurry layers printed by the 3D printing device, the rebar or rib being the long rebar or long rib before being cut by the cutting component and being the short rebar or short rib after being cut by the cutting component,
• wherein the cutting component further comprises:
• a sleeve fixedly disposed relative to the driving mechanism and through which the rebar or rib passes;
• and the cutter head, driven by a first driver, slides along an axis perpendicular to the sleeve and abuts on an end surface of the sleeve for extending the rebar or rib,
• wherein the reinforcing device further comprises a straightening mechanism having a linear passage extending in the conveying direction of the rebar or rib and through which the rebar or rib passes, to adjust a horizontality or verticality of the rebar or rib;
• and
• wherein the reinforcing device further comprises a bending mechanism for bending at least one end of the short rebar or short rib parallel to the stacking direction of the cement-based slurry layer, after cutting by the cutting component, towards the direction perpendicular to the stacking direction of the cement-based slurry layer, and the driving mechanism drives the short rebar or short rib bended to perform a vertical insertion movement;
• the bending mechanism comprises:
• a clamp, for clamping the short rebar or short rib;
• at least one of a bending member, disposed on one side of the clamp;
• at least one of a second driver, coupled to the bending member for driving the bending member to press against an end of the short rebar or short rib to perform a bending movement with respect to a portion of the short rebar or short rib clamped by the clamp, wherein a receiving groove with a slot facing the clamp is provided on an end surface of each of the bending members facing a side of the clamp;
• when the bending member moves with the at least one of the second driver, the receiving groove is embedded with a bended portion of the short rebar or short rib, wherein the bending mechanism comprises two bending members, separately disposed on two sides of the clamp.