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US 6,207,087 B1Granted
Insulated-runner injection molding method and system
AssigneeUniversal Ventures
InventorsPaul Philip Brown, Jens Ole Sorensen
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AssigneeUniversal Ventures
InventorsPaul Philip Brown, Jens Ole Sorensen
Estimating the term…
Various steps in the operation of an insulated runner injection molding system are automated by computer generated responses to various sensing steps or other steps to thereby reduce the performance requirements of the system operator. In automatic response to a manual operation incident to closure of a machine gate after an end-of sequence signal, a computer causes mold-cavity-encasing mold parts to be engaged. In automatic response to sensing such engagement of the mold-cavity-encasing mold parts, the computer causes the molding system to be adjusted to enable disengagement of insulated-runner-channel-encasing mold parts. In automatic response to sensing such adjustment of the molding system, the computer causes channel-encasing mold parts to be disengaged, whereupon a sprue is automatically removed therefrom in response to relative movement of the channel-encasing mold parts. In automatic response to sensing such disengagement of the channel-encasing mold parts, the computer causes the machine gate to be opened to enable inspection of the disengaged channel-encasing mold parts. In automatic response to a manual operation incident to closure of the machine gate after the sprue has been removed, the computer causes the molding system to be readjusted to enable injection of molten plastic into the channel and the mold-cavities. In automatic response to sensing such readjustment of the molding system, the computer causes such injection to be initiated. Drool of injected molten plastic into the mold cavities is reduced by varying the product cooling periods.
A method of operating and controlling an insulated runner injection molding system that includes separable mold-cavity-encasing mold parts which encase at least one mold cavity and further includes separable channel-encasing mold parts which encase a channel in which injected plastic material forms an insulated runner with a solidified insulating plastic shell and a molten plastic core for conducting injected molten plastic material toward the at least one mold cavity, wherein the injection molding system includes a machine gate for controlling access to a space between disengaged channel-encasing mold parts, wherein the core eventually solidifies to form a sprue, the method comprising the steps of:
A method of operating and controlling an insulated runner injection molding system that includes separable mold-cavity-encasing mold parts which encase at least one mold cavity and further includes separable channel-encasing mold parts which encase a channel in which injected plastic material forms an insulated runner with a solidified insulating plastic shell and a molten plastic core for conducting injected molten plastic material toward the at least one mold cavity, wherein the injection molding system includes a machine gate for controlling access to a space between disengaged channel-encasing mold parts, wherein the core eventually solidifies to form a sprue, the method comprising the steps of:
A method of operating and controlling an insulated runner injection molding system that includes separable mold-cavity-encasing mold parts which encase at least one mold cavity and further includes separable channel-encasing mold parts which encase a channel in which injected plastic material forms an insulated runner with a solidified insulating plastic shell and a molten plastic core for conducting injected molten plastic material toward the at least one mold cavity, wherein the injection molding system includes a machine gate for controlling access to a space between disengaged channel-encasing mold parts, wherein the core eventually solidifies to form a sprue, the method comprising the steps of:
A method of operating and controlling an insulated runner injection molding system that includes separable mold-cavity-encasing mold parts which encase at least one mold cavity and further includes separable channel-encasing mold parts which encase a channel in which injected plastic material forms an insulated runner with a solidified insulating plastic shell and a molten plastic core for conducting injected molten plastic material toward the at least one mold cavity, wherein the injection molding system includes a machine gate for controlling access to a space between disengaged channel-encasing mold parts, wherein the core eventually solidifies to form a sprue, the method comprising the steps of:
A method of operating and controlling an insulated runner injection molding system that includes separable mold-cavity-encasing mold parts which encase at least one mold cavity and further includes separable channel-encasing mold parts which encase a channel in which injected plastic material forms an insulated runner with a solidified insulating plastic shell and a molten plastic core for conducting injected molten plastic material toward the at least one mold cavity, wherein the injection molding system includes a machine gate for controlling access to a space between disengaged channel-encasing mold parts, wherein the core eventually solidifies to form a sprue, the method comprising the steps of:
A method of operating and controlling an insulated runner injection molding system that includes separable mold-cavity-encasing mold parts which encase at least one mold cavity and further includes separable channel-encasing mold parts which encase a channel in which injected plastic material forms an insulated runner with a solidified insulating plastic shell and a molten plastic core for conducting injected molten plastic material toward the at least one mold cavity, wherein the injection molding system includes a machine gate for controlling access to a space between disengaged channel-encasing mold parts, wherein the core eventually solidifies to form a sprue, the method comprising the steps of:
A method of operating and controlling an insulated runner injection molding system that includes separable mold-cavity-encasing mold parts which encase at least one mold cavity and further includes separable channel-encasing mold parts which encase a channel in which injected plastic material forms an insulated runner with a solidified insulating plastic shell and a molten plastic core for conducting injected molten plastic material toward the at least one mold cavity, wherein the core eventually solidifies to form a sprue, the method comprising the steps of:
A method of operating and controlling an insulated runner injection molding system that includes separable mold-cavity-encasing mold parts which encase at least one mold cavity and further includes separable channel-encasing mold parts which encase a channel in which injected plastic material forms an insulated runner with a solidified insulating plastic shell and a molten plastic core for conducting injected molten plastic material toward the at least one mold cavity, wherein the core eventually solidifies to form a sprue, the method comprising the steps of:
A method of operating and controlling an insulated runner injection molding system that includes separable mold-cavity-encasing mold parts which encase at least one mold cavity and further includes separable channel-encasing mold parts which encase a channel in which injected plastic material forms an insulated runner with a solidified insulating plastic shell and a molten plastic core for conducting injected molten plastic material toward the at least one mold cavity, wherein the core eventually solidifies to form a sprue, the method comprising the steps of:
A method of operating and controlling an insulated runner injection molding system that includes separable mold-cavity-encasing mold parts which encase at least one mold cavity and further includes separable channel-encasing mold parts which encase a channel in which injected plastic material forms an insulated runner with a solidified insulating plastic shell and a molten plastic core for conducting injected molten plastic material toward the at least one mold cavity, wherein the injection molding system includes a machine gate for controlling access to a space between disengaged channel-encasing mold parts, wherein the core eventually solidifies to form a sprue, the method comprising the steps of:
A method of operating and controlling an insulated runner injection molding system that includes separable mold-cavity-encasing mold parts which encase at least one mold cavity and further includes separable channel-encasing mold parts which encase a channel in which injected plastic material forms an insulated runner with a solidified insulating plastic shell and a molten plastic core for conducting injected molten plastic material toward the at least one mold cavity, wherein the core eventually solidifies to form a sprue, the method comprising the steps of:
A method of operating and controlling an insulated runner injection molding system that includes separable mold-cavity-encasing mold parts which encase at least one mold cavity and further includes separable channel-encasing mold parts which encase a channel in which injected plastic material forms an insulated runner with a solidified insulating plastic shell and a molten plastic core for conducting injected molten plastic material toward the at least one mold cavity, wherein the injection molding system includes a machine gate for controlling access to a space between disengaged channel-encasing mold parts, wherein the core eventually solidifies to form a sprue, the method comprising the steps of:
A method of operating and controlling an insulated runner injection molding system that includes separable mold-cavity-encasing mold parts which encase at least one mold cavity and further includes separable channel-encasing mold parts which encase a channel in which injected plastic material forms an insulated runner with a solidified insulating plastic shell and a molten plastic core for conducting injected molten plastic material toward the at least one mold cavity, wherein the injection molding system includes a machine gate for controlling access to a space between disengaged channel-encasing mold parts, wherein the core eventually solidifies to form a sprue, the method comprising the steps of:
A method of operating and controlling an insulated runner injection molding system that includes separable mold-cavity-encasing mold parts which encase at least one mold cavity and further includes separable channel-encasing mold parts which encase a channel in which injected plastic material forms an insulated runner with a solidified insulating plastic shell and a molten plastic core for conducting injected molten plastic material toward the at least one mold cavity, wherein the core eventually solidifies to form a sprue, the method comprising the steps of:
A method of operating and controlling an insulated runner injection molding system that includes separable mold-cavity-encasing mold parts which encase at least one mold cavity and further includes separable channel-encasing mold parts which encase a channel in which injected plastic material forms an insulated runner with a solidified insulating plastic shell and a molten plastic core for conducting injected molten plastic material toward the at least one mold cavity, wherein the core eventually solidifies to form a sprue, the method comprising the steps of:
A method of operating and controlling an insulated runner injection molding system that includes separable mold-cavity-encasing mold parts which encase at least one mold cavity and further includes separable channel-encasing mold parts which encase a channel in which injected plastic material forms an insulated runner with a solidified insulating plastic shell and a molten plastic core for conducting injected molten plastic material toward the at least one mold cavity, wherein the core eventually solidifies to form a sprue, the method comprising the steps of:
A method of operating and controlling an insulated runner injection molding system that includes separable mold-cavity-encasing mold parts which encase at least one mold cavity and further includes separable channel-encasing mold parts which encase a channel in which injected plastic material forms an insulated runner with a solidified insulating plastic shell and a molten plastic core for conducting injected molten plastic material toward the at least one mold cavity, wherein the core eventually solidifies to form a sprue, the method comprising the steps of:
A method of operating and controlling an insulated runner injection molding system that includes separable mold-cavity-encasing mold parts which encase at least one mold cavity and further includes separable channel-encasing mold parts which encase a channel in which injected plastic material forms an insulated runner with a solidified insulating plastic shell and a molten plastic core for conducting injected molten plastic material toward the at least one mold cavity, wherein the injection molding system includes a machine gate for controlling access to a space between disengaged channel-encasing mold parts, wherein the core eventually solidifies to form a sprue, the method comprising the steps of:
A method of operating and controlling an insulated runner injection molding system that includes separable mold-cavity-encasing mold parts which encase at least one mold cavity and further includes separable channel-encasing mold parts which encase a channel in which injected plastic material forms an insulated runner with a solidified insulating plastic shell and a molten plastic core for conducting injected molten plastic material toward the at least one mold cavity, the method comprising the steps of:
A method of operating and controlling an insulated runner injection molding system that includes separable mold-cavity-encasing mold parts which encase a plurality of mold cavities and further includes separable channel-encasing mold parts which encase a channel in which injected plastic material forms an insulated runner with a solidified insulating plastic shell and a molten plastic core for conducting injected molten plastic material toward the mold cavities, wherein the core eventually solidifies to form a sprue, and wherein the molding system is a stack molding system that utilizes a rack and pinion system to variably position the mold-cavity-encasing mold parts and the channel-encasing mold parts, the method comprising the steps of:
A method of operating and controlling an insulated runner injection molding system that includes separable mold-cavity-encasing mold parts which encase a plurality of mold cavities and further includes separable channel-encasing mold parts which encase a channel in which injected plastic material forms an insulated runner with a solidified insulating plastic shell and a molten plastic core for conducting injected molten plastic material toward the mold cavities, wherein the core eventually solidifies to form a sprue, and wherein the molding system is a stack molding system, the method comprising the steps of:
An insulated runner injection molding system, comprising
An insulated runner injection molding system, comprising
Dependencies are inferred from the claim text.