PLASTIC INJECTION MOLDING MACHINE WITH INJECTION FORCE MEASURING DEVICE

PROBLEM TO BE SOLVED: To provide a plastic injection molding machine with an injection force measuring device, which has simple structure and can measure the injection force in a substantially trouble-free manner. SOLUTION: The plastic injection molding machine with an injection unit comprises the injection unit, an injection unit housing as a central part of the injection unit, a plasticizing cylinder which is connected to the injection unit housing, a screw which is supported in the plasticizing cylinder for rotation to prepare an injection material and for displacement to effect injection stroke in an axial direction, drive motors which are coupled to the screw to generate the rotation and axial movement of the screw and are supported on the injection unit housing via a motor flange and the injection force measuring device for determining injection force applied by the screw when executing its injection stroke. The injection force measuring device includes at least one tensile force sensor which is integrated in the injection unit housing in such a manner that reaction force of the injection force, as generated by the injection force and introduced via the motors and the motor flange into the injection unit housing, is detectable. COPYRIGHT: (C)2010,JPO&INPIT