Mold oscillation device capable of automatically adjusting an oscillation of a mold used in a continuous casting machine

A mold oscillation device for a continuous casting apparatus, including an oscillation driving arrangement for driving an oscillation of a mold, and a feedback control system which includes an acceleration sensor for detecting an acceleration accompanying said oscillation of said mold to produce an acceleration detection signal and a position sensor for detecting a position of a driving portion in said oscillation driving arrangement to produce a position detection signal and which is for feeding, as a detection feedback signal, at least one of said acceleration detection signal and said position detection signal back to a control unit of said oscillation driving arrangement to thereby control said oscillation of said mold, said mold oscillation device comprising:

• an abnormal oscillation judging portion supplied with said detection feedback signal for judging presence or absence of an abnormal oscillation of said mold through a frequency analysis of said detection feedback signal to produce a judgment result signal corresponding to a judgment result;
• and
• an adjustment level producing portion responsive to said judgment result signal from said abnormal oscillation judging portion for designating a feedback gain of a feedback gain setting part of said feedback control system.