Injection molding apparatus
AssigneeMold-Masters (2007) Limited
InventorsDenis Babin, Harold Godwin, Jiping Qian, Yat Kwong Lai
Life of this patent
Estimating the term…
Abstract
An injection molding apparatus includes an inlet component, a plurality of nozzles, and a plurality of hoses, each of which is not heated. The hoses are connected between outlets of the inlet component and respective molding material inlets of the nozzles for conveying molding material from the inlet component to the nozzles. Hoses may also be connected between a rail plate and the nozzles for delivering cooling fluid or actuation fluid for an actuator to and from the nozzles. The nozzles may be fastened to a mold plate of the injection molding apparatus, such as by a threaded bushing. A heated insert may at least partially define the mold cavity to heat molding material in the mold cavity.
Claims23
An injection molding apparatus comprising:
- an inlet component having an inlet and a plurality of outlets, the inlet for receiving molding material from a source;
- a plurality of nozzles, each nozzle having a molding material inlet and a nozzle channel for delivering molding material through a mold gate and into a mold cavity, each nozzle having an actuated valve pin for opening and closing the mold gate;
- and
- a manifold connected between the outlets of the inlet component and the inlets of the nozzles for conveying molding material from the inlet component to the nozzles,
- wherein at least one of the nozzles comprises a nozzle core that defines the nozzle channel for conveying molding material, a cooling channel for flow of coolant to cool the molding material in the nozzle channel, and a nozzle housing in which the nozzle core is disposed, the nozzle housing including coolant ports connected to the cooling channel of the nozzle core and a molding material inlet connected to the nozzle channel.
An injection molding apparatus comprising:
- an inlet component having an inlet and a plurality of outlets, the inlet for receiving molding material from a source;
- a plurality of nozzles, each nozzle having an inlet and a nozzle channel for delivering molding material through a mold gate and into a mold cavity, each nozzle having an actuated valve pin for opening and closing the mold gate;
- a plurality of hoses, each hose connected between an outlet of the inlet component and an inlet of one of the nozzles for conveying molding material from the inlet component to the connected nozzle;
- and
- at least one rail plate sandwiched between a back plate and the mold plate, the rail plate having a channel for conveying coolant or actuator fluid, and at least one conduit connected between the rail plate and one of the nozzles for convening coolant or actuating fluid to the nozzle;
- wherein the inlet component, the nozzles, and the hoses do not have a heater in contact therewith.
An injection molding apparatus comprising:
- an inlet component having an inlet and a plurality of outlets, the inlet for receiving molding material from a source;
- a plurality of nozzles, each nozzle having an inlet and a nozzle channel for delivering molding material through a mold gate and into a mold cavity, each nozzle having an actuated valve pin for opening and closing the mold gate;
- and
- a manifold connected between the outlets of the inlet component and the inlets of the nozzles for conveying molding material from the inlet component to the nozzles;
- wherein at least one of the nozzles comprises a nozzle core that defines the nozzle channel for conveying molding material and a cooling channel for flow of coolant to cool the molding material in the nozzle channel, the nozzle core having two concentric sleeves and the cooling channel being disposed between the sleeves.
An injection molding apparatus comprising:
- an inlet component having an inlet and a plurality of outlets, the inlet for receiving molding material from a source;
- a plurality of nozzles, each nozzle having an inlet and a nozzle channel for delivering molding material through a mold gate and into a mold cavity, each nozzle having an actuated valve pin for opening and closing the mold gate;
- a manifold connected between the outlets of the inlet component and the inlets of the nozzles for conveying molding material from the inlet component to the nozzles;
- and
- at least one rail plate sandwiched between a back plate and the mold plate, the rail plate having a channel for conveying coolant or actuator fluid, and at least one conduit connected between the rail plate and one of the nozzles for conveying coolant or actuating fluid to the nozzle.
Dependencies are inferred from the claim text.