3D special printing device

The utility model discloses a 3D special printing device which comprises a storage mechanism, a discharge pipe and a printing nozzle which are connected in sequence, a heating mechanism is arranged ata discharge port of the storage mechanism, the heating mechanism is connected with a temperature controller, and the discharge pipe is connected with a flow control valve. Before the 3D printing material enters the discharging pipe; hEATING MELT THROUGH HEATING MECHANISM, under the action of the temperature controller, the heating power is controlled according to the printing speed; the flow control valve controls the speed of materials entering the printing nozzle from the discharging pipe. By controlling the heating rate and the feeding speed, on-demand supply of the fused 3D printing material is achieved, the problem that a feeding port and a spray head of a discharging pipe are blocked can be avoided without a two-section heat preservation device, waste of heating energy is reduced, and the problem that in th