Fully automatic operation system for injection molding machines

Claim 1

A fully automatic operating system for an injection molding machine including an injection device, a mold and a mold clamping device, said system comprising: detecting means for detecting initialization temperatures at which conditions of a mold part, a barrel of the injection device and a hydraulic fluid are optimized for a start-up operation of the injection molding machine; start-up condition setting means for setting a condition to perform a start-up operation comprising a plurality of steps after initialization temperatures are set; molding condition setting means for setting a condition to start a molding of complete products after a termination of the start-up operation; means for counting the number of shots of products once a molding of the products starts and for generating a molding-end signal when the number of shots reaches a set value; means for detecting and judging an abnormal condition, and generating an abnormal signal in case the abnormal condition occurs during a molding process; an automatic control unit for: judging that said initialization is completed by entering a detection signal when said initialization temperatures are reached; commanding to stop a molding operation by entering a molding-end signal while generating control signals to respective control devices by loading a start-up condition; and counting a time elapsed from a temporary stop in response to entrance of an abnormal signal up to a restart of a molding operation, so that the start-up operation restarts if the elapsed time being counted does not exceed a predetermined value, and so that heaters and hydraulic pumps are turned off if the elapsed time being counted exceeds the predetermined value.