Back to results
US 4,601,653 AGranted
Injection mechanism in injection molding apparatus
AssigneeFanuc Corporation
InventorYoshiharu Inaba
Life of this patent
Estimating the term…
Abstract
An injection molding apparatus including a power transmission device is provided for axially moving a screw by a rotational force of a motor received through a first clutch. During non-injection/non-metering, the motor is driven to cause an energy accumulation device to accumulate energy through a second clutch. During injection, a driving force of the motor and the energy accumulated in the energy accumulation device achieve high-pressure, high-speed injection with good response characteristics.
Claims5
An injection mechanism in an injection molding apparatus, comprising:
- (a) a power transmission device for converting rotation of a motor to linear movement;
- (b) a first screw for performing injection connected to the power transmission device;
- (c) means for accumulating energy;
- and a first clutch;
- (d) a motor having a rotating shaft which is coupled to said power transmission device through a first clutch and is coupled to said energy accumulation means through a second clutch,
- wherein, during non-injection/non-metering, said second clutch is operated to cause said energy accumulation means to accumulate energy, and
- wherein during injection, said first screw is moved by rotation of said motor and the energy accumulated by said energy accumulating means.
4 more elements
Dependencies are inferred from the claim text.