Patent ID: 7186111

Claim:
An injection molding machine, comprising: a hybrid injection unit, including a plasticizing screw having a shaft and received in a plasticizing cylinder for rotation and displacement in an axial direction, a first electric motor operatively connected to the shaft of the plasticizing screw for implementing the rotation of the plasticizing screw, a second electric motor operatively connected to the shaft of the plasticizing screw for implementing the axial displacement of the plasticizing screw, and at least one hydraulic piston and cylinder unit for controlled operation of the plasticizing screw; a mold clamping unit having at least two platens moveable relative to one another; and a single hydraulic pressure source operatively connected to the hydraulic piston and cylinder unit to assist operation of the plasticizing screw and operatively connected to the mold clamping unit to assist operation of the mold clamping unit.