Patent ID: 7144237
Filing Date: 2006-12-05
Classification: B29C,F16H

Abstract:
1. An injection unit for an injection molding machine, comprising: a plasticizing barrel; a plasticizing screw received in the plasticizing barrel; an electromotive rotary drive for driving the plasticizing screw to rotate about a rotation direction, said rotary drive being supported for joint movement with the plasticizing screw in relation to the plasticizing barrel in direction of an injection stroke; an electromechanical injection stroke drive for longitudinal movement of the plasticizing screw and the rotary drive to execute the injection stroke, wherein the plasticizing screw, the rotary drive and the injection stroke drive are disposed in coaxial relationship; a linear guide connected to a machine bed for guiding a longitudinal movement of the injection stroke drive and the plasticizing screw; and a housing shell constructed for torsional stiffness and jointly accommodating the injection stroke drive and the rotary drive, with the rotary drive being supported by the housing shell for movement in the direction of the injection stroke, wherein the plasticizing barrel and the injection stroke drive are connected by the housing shell in a tension-proof manner and supported via the housing shell on the linear guide for longitudinal movement.