and 4 the mold closing operation is performed in the mold opening state the mold closing operation can be classified into a high speed moving operation a locking operation and a clamping operation first the high speed moving operation is a procedure in which the moving platen 120 moves to the first fixed platen 110 along the tie bar 101 by the template transfer cylinder 102 provided at one side of the moving platen 120 and the first fixed platen 110 or machine frame respectively in the mold opening state through the high speed transfer operation the second mold 121 of the moving platen 120 and the first mold 111 of the first fixed platen 110 are close to each other or do not contact each other as illustrated in fig5 that is in order to prevent mold damages caused by rapid mold clamping the second mold 121 of the moving platen 120 and the first mold 111 of the first fixed platen 110 are separated from each other at a predetermined small distance d at this time as the high speed transfer operation is performed the column 140 also moves toward the first fixed platen 110 together with the moving platen 120 so that the column tooth 141 of the column 140 can be positioned in the center bore 131 of the mold clamping piston 150 when the high speed moving operation is completed as illustrated in fig6 the clamping tooth 152 is positioned in the clamping tooth seating groove 151 of the mold clamping piston 150 in addition the teeth rod 153 connected to the clamping tooth 152 is positioned in the groove starting point 161 a of the clamping tooth guide groove 161 the locking operation proceeds when the high speed moving.