×

Drive device for displacing two linearly moveable components pertaining to a plastic injection moulding machine

  • US 6,913,456 B2
  • Filed: 11/08/2001
  • Issued: 07/05/2005
  • Est. Priority Date: 11/14/2000
  • Status: Expired due to Fees
First Claim
Patent Images

1. A drive device for displacing first and second linearly movable components (10, 13) of a plastics injection-molding machine at least partly at successive times, in particular for displacing the first component that is an injection unit (10) for bringing an injection nozzle (15) into contact with a mold, and for displacing the second component that is an injection mechanism (13) for injecting polymer into the mold,wherein the drive device comprises an electric motor, first and second clutches, a threaded drive having a threaded spindle (51) and a spindle nut (50), and at least one shut-off valve;

  • wherein the electric motor (45) displaces the second component (13) by means of the first clutch (55) and the threaded drive;

    wherein the electric motor displaces the first component (10) by means of the second clutch (56), the at least one shut-off valve (75, 95) connects between at least one of the clutches and a corresponding one of the first and the second movable components (10, 13), and the threaded drive is arranged between the electric motor (45) and the two clutches (55, 56), and wherein, for displacing one of the first and the second movable components (10, 13), the drive spindle (51) of the threaded drive is movable linearly beyond a displacement distance necessary for displacing the other of the first and the second movable components (13, 10).

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×