Patent ID: 7942659
Filing Date: 2011-05-17
Classification: B29C

Abstract:
1. An injection drive apparatus for injection molding machines comprising a material feeding mechanism, a slide mechanism and an injection mechanism; wherein the material feeding mechanism having a material feeder fixed and connected with a machine platform, a material inlet disposed over the material feeder and a material feeding hole arranged at a center of the material feeder; the material feeding hole is connected with the material inlet and a material feeding screw is inserted through the material feeding hole while the machine platform is disposed with a material-feeding motor and a conveyor belt is arranged between a drive shaft of the material-feeding motor and a disc; the slide mechanism includes a sliding slave member assembled with a rear end of the material feeding screw, a sliding master member assembled with the sliding slave member, and a positioning member with an insertion hole for insertion and positioning of the sliding master member; one end of the positioning member is sleeved with an axial hole disposed on the machine platform while the other end of the positioning member is assembled with the disc of the material feeding mechanism; the injection mechanism includes a sleeve to connect and assemble with the sliding master member of the slide mechanism and a screw hole is mounted on a center of the sleeve so as to assemble and thread with a drive screw while the other end of the drive screw is out of an axial hole on the machine platform to connect with a disc; an injection motor is fixed on and arranged at the machine platform and a conveyor belt is disposed between a drive shaft of the injection motor and the disc.