Injection molding apparatus having movable yoke plate
AssigneeMold-Masters (2007) Limited
InventorFabrice Fairy
Life of this patent
Estimating the term…
Abstract
A coinjection molding apparatus includes a manifold, a nozzle body coupled to the manifold, a sleeve disposed within the nozzle body and defining an outer melt channel between the sleeve and the nozzle body, a pin disposed within the sleeve and defining an inner melt channel between the pin and the sleeve, and a nozzle tip having an alignment portion contacting the sleeve. The sleeve is actuated to open and close melt communication of the outer melt channel and a cavity gate. The pin is actuated to open and close melt communication of the inner melt channel and an opening of the sleeve. The alignment portion aligns the sleeve with the cavity gate along the actuated range of the sleeve.
Claims25
An injection molding apparatus, comprising:
- a moveable yoke plate;
- a plurality of actuators attached to the yoke plate and movable with the yoke plate, each actuator having a moveable part;
- a manifold and plurality of nozzles, the manifold and plurality of nozzles together defining a plurality of channels, each channel for flow of molding material to one of a plurality of cavity gates;
- and
- a plurality of pins, each pin connected to the movable part of one of the actuators to open and close communication of one of the channels to the respective cavity gate.
An injection molding apparatus, comprising:
- a backing plate having an attached actuator;
- a yoke plate connected to and movable by the actuator attached to the backing plate;
- a plurality of actuators attached to the yoke plate and movable with the yoke plate, each of the plurality of actuators having a moveable part;
- a manifold and plurality of nozzles, the manifold and plurality of nozzles together defining a plurality of channels, each channel for flow of molding material to one of a plurality of cavity gates;
- and
- a plurality of pins, each pin connected to the movable part of one of the actuators of the plurality of actuators to open and close communication of one of the channels to the respective cavity gate.
A coinjection molding apparatus, comprising:
- a moveable yoke plate;
- a plurality of actuators attached to the yoke plate and movable with the yoke plate, each actuator having a moveable part;
- a manifold and plurality of nozzles, the manifold and plurality of nozzles together defining a plurality of channels, each channel for flow of molding material to one of a plurality of cavity gates;
- a plurality of sleeves connected to the yoke plate and movable with the yoke plate to open and close communication of outer channels to the plurality of cavity gates;
- and
- a plurality of pins, each pin connected to the movable part of one of the actuators to open and close communication of an inner channel to a respective cavity gate.
Dependencies are inferred from the claim text.