Mold opening and closing mechanism for an I.S. machine

摘要

A mold opening and closing mechanism for an I.S. machine having a plurality of individual sections each having a pair of opposed mold support mechanisms displaceable between a separated retracted position whereat each mold support mechanism is located at a start position and an advanced position whereat molds carried by the mold support mechanisms will forcefully engage. The drive which is operatively associated with each mold support mechanism includes an electronic motor. A predetermined torque is applied to the motors for a period of time when the opposed pair of mold support mechanisms are at the advanced position. To return the mold support mechanisms to the start position the electronic motors are operated to displace the mold support mechanisms at a slow velocity for a predetermined period of time and then operated to displace the mold support mechanisms to rapidly displace the mold support mechanisms to the start position following the predetermined period of time.