Patent attributes
An injection assembly for an injection molding machine includes a plasticizing screw defining an axis, a housing, and a drive train, which is accommodated in the housing, for moving the plasticizing screw in an axial direction and for turning the plasticizing screw. The drive train includes an injection drive having a screw mechanism with a threaded shaft moveable in direction of an injection stroke, with the plasticizing screw being rigidly connected to the threaded shaft, and a rotary drive having a drive element, with the plasticizing screw being connected to the drive element such that the plasticizing screw is able to turn with the drive element and able to move in axial direction. The drive train is movably supported independently from the rotary drive by a support structure which includes a radial bearing disposed in an area between a screw-proximal end of the threaded shaft and the plasticizing screw, and a linear guide securely fixed to the housing for guiding the drive train during movement in the axial direction.
