Patent ID: 8375579

Claim:
A system for injecting a thermoplastic material in the fluid state into a molding cavity, the system comprising: a manifold operably held at an injection temperature greater than the final temperature beyond which the material occurs in the fluid state, the manifold including a distribution channel and at least one thermoplastic material outlet; an injection nozzle defining at least one portion of a transit passage an entrance of which is fluidically connected with the outlet of the distribution channel, and an outlet of the transit passage opening substantially into the molding cavity; a nozzle gate mounted within the transit passage so as to slide between a position closing same and a position opening same; a power cylinder operably causing the nozzle gate to slide alternately; the power cylinder including a rod parallel to a sliding direction (X) of the nozzle gate, secured in an offset fashion to the manifold through a flattened beam, and a lever arranged to tilt about a trunnion so as to transmit to the nozzle gate the movements of the cylinder rod.