Patent ID: 11969941
Assignee: KLABS.INC
Field: Other special machines (Mechanical engineering)
Classification: CPC B  Y | IPC B

Claim 0:
1. A binder jetting 3D printer capable of continuous printing, the binder jetting 3D printer comprising:
a main frame provided with a binder nozzle and a powder leveling means, and provided with a building region, a powder supply region, and a withdrawal region;
a box assembly provided with a build box in which a build plate is provided, a powder supply box in which a supply plate is provided, and a withdrawal box provided to surround a front, a left side, and a right side of the build box;
a build plate lifting and lowering means lifting and lowering the build plate;
a supply plate lifting and lowering means lifting and lowering the supply plate;
a horizontal movement guide means guiding horizontal movement of the box assembly, and comprising a first chain rail and a second chain rail; and
a box assembly lifting and lowering means lifting and lowering the first chain rail, the second chain rail, and the box assembly, the box assembly being placed on the first chain rail and the second chain rail,
wherein, when the box assembly is moved from a rear to a front of the binder jetting 3D printer, the horizontal movement guide means stays in a lowered state such that a gap between the main frame, the powder supply box, and the build box are maintained,
wherein, when the box assembly is placed in position, the box assembly is lifted by the box assembly lifting and lowering means such that the gap between the main frame, the powder supply box, and the build box are closed,
wherein the box assembly is supplied from the rear of the binder jetting 3D printer to an inside of the main frame by the horizontal movement guide means,
wherein, when the box assembly is moved from the inside of the main frame to the front of the binder jetting 3D printer by the horizontal movement guide means, another box assembly located behind the box assembly is supplied from the rear of the binder jetting 3D printer to the inside of the main frame, and
wherein each of the first chain rail and the second chain rail has first and second portions protruding from rear and front surfaces of the main frame to supply the box assembly from the rear of the binder jetting 3D printer to the inside of the main frame and to move the box assembly from the inside of the main frame to the front of the binder jetting 3D printer, respectively.