INJECTION MOLDING APPARATUS AND METHOD FOR MONITORING MOLD HALVES MOVEMENT

摘要

An injection molding apparatus comprised of an injection molding machine, a fluid distribution system that includes a heated manifold, one or more actuators and associated valve pins controlling flow through one or more gates leading to a cavity formed by first and second mold members, a magnet mounted to one of the first and second mold members, a sensor mounted to the other of the first and second mold members, the degree or quality of the magnetic field sensed by the sensor varying with position of the mold members relative to each other, the sensor generating signals indicative of the position of the mold members relative to each other based on a sensed variation in the magnetic field generated by the magnet, and, a controller adapted to receive and store one or more signals generated by the sensor.