Vertical injection molding machine

摘要

An injection molding machine with a vertically operating clamp mechanism is provided with a pair of locking devices on the upper movable platen to lock the locking rods for high tonnage clamping forces. Each locking device uses spring biased actuating rods to simultaneously lock two locking rods to the movable platen in an always "on" arrangement. A power on actuator is provided to release the locking device for raising and lowering the movable platen. A vertical ladder frame is provided for guiding the movable platen when it is raised or lowered. Additionally, a lift mechanism is provided for a rotary table carrying the lower mold halves.