Apparatus for injection molding of plastic material
AssigneeINGLASS S.p.A.
InventorMaurizio Bazzo
Life of this patent
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Abstract
An apparatus for injection molding of plastic materials includes an injection machine platen, a mold including a backing plate for securing the mold to the injection machine platen, a distributor of the plastic material to be injected adjacent to the backing plate and bearing at least one injector including a nozzle within which a pin valve is axially movable, and a respective electric actuator with associated transmission to operate the displacement of the pin valve between a closed position and an open position. The transmission includes a variable-length connecting rod.
Claims12
An apparatus for injection molding of plastic materials including an injection machine platen, a mold comprising a backing plate for securing the mold to the injection machine platen, a distributor of the plastic material to be injected, bearing a plurality of injectors with each injector of the plurality of injectors including a nozzle within which a pin valve is axially movable, and a respective electric actuator and associated transmission to operate displacement of the pin valve between a closed condition and an open condition to enable fluid plastic material under pressure to flow from the distributor to a cavity of the mold, wherein each transmission includes a connecting rod and the connecting rod has a variable length so as to accommodate different distances between each pin valve and its respective electric actuator, and wherein the plurality of injectors are operable independently of each other.
An apparatus for injection molding of plastic materials including an injection machine platen, a mold comprising a backing plate for securing the mold to the injection machine platen, a distributor of the plastic material to be injected, bearing a plurality of injectors with each injector of the plurality of injectors including a nozzle within which a pin valve is axially movable, and a respective electric actuator and associated transmission to operate displacement of the pin valve between a closed condition and an open condition to enable fluid plastic material under pressure to flow from the distributor to a cavity of the mold, wherein the transmissions include variable-length connecting rods having different lengths to accommodate different distances between the pin valves and electric actuators, and wherein the plurality of injectors are operable independently of each other.
Dependencies are inferred from the claim text.