A print head for creating 3D models of plastic melt with induction heating

摘要

A print head,  with induction heating. for creating 3D models of plastic melt, comprising a melting chamber (7) with a nozzle (6), a cooling block (1), a feeding mechanism (17) and a heating mechanism (15), wherein the cooling block (1) is provided with a coolant distribution channel (25), at the inlets and outlets of which the connections (3) for connection to the coolant are connected, and the cooling block (1) is further connected to a holder (2) in which the melting chamber (7) is attached, wherein the feeding mechanism (17) is formed by a feed roller (11) to which a pressure bearing (12) provided with a spring (16) is adjoined, and the feeding mechanism (17) is further connected to the melting chamber (7) for moving the printing material (13) into the melting chamber (7), wherein the melting chamber (7), in the direction of the passage of the printing material (13), comprises an inlet part (18), a cooled part (19), a heated part (20) and an outlet part (21) at the mouth of which the nozzle (6) is fitted, and, in the place of the heated part (20), the melting chamber (7) is provided with the heating mechanism (15) and, at the place of the inlet and cooled part (18, 19), it is provided with the cooling block (1) with the holder (2), wherein the heating mechanism (15) consists of an insulating skeleton (4) on which the threads of an induction coil (5) are wound, and a temperature sensor (9) is arranged between the insulating skeleton (4) and the winding of the induction coil (5).