An insulation system includes a panel that is configured to fit with a hot runner of an injection molding machine. The panel has panel walls that define a closed interior cavity. There is an insulation material disposed in the closed interior region. The panel has a panel geometry that is complementary to the geometry of the hot runner such that the panel fits intimately with the hot runner.

An injection molding mold including: a flow path through which a molten resin passes; a main body portion including an introduction portion configured to introduce the molten resin into the flow path and a supply portion configured to supply the molten resin from the flow path to a cavity mold; and a plug unit formed with a plug flow path which is a part of the flow path, the plug unit being attachable to the main body portion, in which a prevention portion configured to prevent a pressure loss from occurring when the molten resin passes through the flow path is formed at a portion of the plug flow path where a moving direction of the molten resin changes.

A side-gate injection molding apparatus and a side-gate nozzle assembly are disclosed. The side-gate nozzle assembly delivers moldable material to a cavity insert that is beside the side-gate nozzle assembly. The side-gate nozzle assembly includes a nozzle body having a nozzle flow channel and a widthwise slot extending across a downstream side of the nozzle body. The nozzle flow channel has an outlet that ends at a wall of the slot. A load component is received in the slot and has a load component flow channel in fluid communication between the nozzle body outlet and an outlet at an end of the load component. A side-gate tip assembly is adjacent to the end of the load component and is in fluid communication between the load component flow channel and the cavity insert. In operation, thermal expansion of the load component presses the side-gate tip assembly towards the cavity insert.

An injection molding apparatus comprising a manifold, an actuator having a piston that divides an enclosed actuator housing into upstream and downstream actuator drive chambers, the piston having an internal piston chamber and a piston bore that communicates flow of the drive fluid between one of the upstream or downstream actuator drive chambers and the internal piston chamber, a flow rate controller adapted to enable flow of drive fluid between one of the upstream or downstream actuator drive chambers and a source of drive fluid at a first low rate of flow over a selected first portion of the stroke length of the piston and at a second high rate of flow over a selected second portion of the stroke length of the piston.

A manifold for resin application, infusion, and/or injection is provided. The manifold comprises at least one inlet and a plurality of outlets. At least one outlet of the manifold comprises a valve that is operable to selectively dispense or terminate a flow of a resin from the outlet, and wherein the resin is supplied through the at least one inlet.

In order to provide a sprue-bush which is capable of suitably cooling a melt raw resin in a raw resin-flow path as a whole, there is provided a sprue-bush, comprising a raw resin-flow path and a cooling medium-flow path located around the raw resin-flow path, wherein a width dimension of the raw-resin flow path gradually becomes larger toward a downstream side-end surface of the sprue-bush, and wherein the downstream side-end surface of the sprue-bush is a heat transfer surface.

An injection molding apparatus comprising a heated manifold, an actuator comprised of an actuator housing containing a drive member interconnected to a valve pin having a drive axis, one or more heat convectors each heat convector comprised of a heat conductive leg disposed within a gap disposed between the manifold and a downstream end of the actuator housing and a heat conductive arm extending distally upstream and away from the gap such that heat is conducted from the leg to the arm upstream and away from the downstream end of the actuator housing.

A manifold with a supply passage for supplying one or more materials. The manifold has a return passage for recirculating the one or more materials. The manifold includes one or more injection valves for filling one or more corresponding mold cavities. The supply passage and the return passage are in fluid communication with the one or more injection valves.

Aspects of the present disclosure include branching fluid passages in an apparatus that reduce turbulent flow and generate evenly distributed fluid pressure as the fluids branch off into the different passages. In some embodiments, the branching passages may be subdivided into two sets: the branching passages for the liquid fuel and the branching passages for the liquid oxidizer. In some embodiments, the two sets of passages are carefully designed in an elegant yet extremely intricate manner that is optimized for proper fluid flow and maximal burn efficiency. The ends of all of the passages meet at the injector interface, which dispense the liquids into the combustion chamber for ignition. Generally, these designs are achieved through additive manufacturing, and would be extremely difficult, if not impossible, to be manufactured using traditional techniques.

A co-injection nozzle is disclosed that includes a combining means configured to reduce shear heating and create a more even shear heating profile in core and skin material flow streams. The combining means is configured to reduce shear heating peaks and valleys in core and skin material flow streams as the streams flow between annular channels of the combining means during a mold filling process.