Constructive disposition applied in injector nozzle of plastic injection moulds

摘要

Constructive disposition applied in injector nozzle of plastic injection molds consisting of nozzles melting and injection of plastic material of a stage (1), (1 '),Two stages (2), and three stages (3) and (3) of molds.With each stage of merger with a pair of electric resistance coil (main and reserve) with constant step (4) or fewer or with said resistance ring or Colin formatsEares and pair of thermocouples (5) against the body and the resistance (4) or only in a pair of resistors (4) and the temperature of a main electrical resistance (4),(4) (4) (4 ') is constantly measured by a thermocouple (5) or (5') and, in case of the burning of this resistance will be identified by the sensor (7) of the thermocouple lead, immediately.Communicate with the CPU (8) that will drive a relay (9) that activates the electrical resistance of the reserve (4), (4 ') (4) (4') and the thermocouple reserves (5) and (5 ') and indicate visually.On the control panel of the CPU (8), the problem occurred.The development of seeking a solution that ensures the continuity of the work of the injection of plastic material in the mold even occurring the burning of the electric resistance which causes the merger)Said plastic material.