The invention relates to a novel hot melting
cement 3D printing head. The novel hot melting
cement 3D printing head comprises a hot material conveying device, wherein the hot material conveying device comprises a tank body, a hot material motor, a worm rod and a heating
resistor; the tank body is a cylindrical cavity; a shell interlayer made of a heat insulating material is arranged outside the tank body; a feed port is formed in the side surface of the upper end of the tank body; a conical
nozzle is arranged at the lower end of the tank body; the hot material motor is fixed at the top end of the tank body, and is connected with a feeding worm rod through a
coupling; one end of the worm rod is connected with the motor, a rotating shaft and the
coupling, and is fixed at the upper end of the tank body by using a bearing; spiral blades are arranged on the worm rod; and the heating
resistor is fixed in the interlayer of the tank body. The novel hot melting
cement 3D printing head further comprises a cold material conveying device, wherein the cold material conveying device comprises a cold material bin and a
piston pushing device; the cold material bin is provided with a rotary feeding valve; the rotary feeding valve is in engaged connection with a cold material motor gear; and the
piston pushing device consists of a concave wheel and a pushing
piston, is fixed at the lower part of the cold material bin, is engaged to the cold material motor gear, and realizes the piston type pushing of a cold material to a hot material feed port.