S.i.p.a. Societa' Industrializzazione Progettazione E Automazione S.p.a.

Paolo Spinazze′

Matteo Zoppas

Andrea Cavalet

Andrea Martegani

Simone Camarotto

Giorgio Dam

Federico Vescovo

A component for a nozzle for injecting molten plastic into a molding cavity of a container, in particular of a test tube or a bottle preform,

Component for a nozzle of an injection molding apparatus as well as corresponding nozzle and injection molding apparatus

A process for molding one or more bottle preforms, wherein molten plastic is injected into at least one molding cavity; and wherein air is drawn from the at least one molding cavity, through at least one channel for the air to pass from the at least one molding cavity towards the outside of the molding device, by means of suction means; and apparatus and device for performing such a process.

Apparatus and process for molding bottle preforms

An injection apparatus for injecting molten plastic into a mold of articles made of thermoplastic material including bottle preforms. The injection apparatus includes an injection nozzle and a shutter for controlling flow of the molten plastic through the injection nozzle. A cylinder-piston system moves the shutter from open and closed positions of the injection nozzle. The cylinder-piston system includes a first chamber with a first passage for introducing fluid into the first chamber to open the shutter, and a second passage, different from the first passage, for discharge of fluid and of possible particles from the first chamber. A fluid distribution device with a first channel is connected to the first passage, and a second channel different from the first channel is connected to the second passage. The cylinder-piston system includes a second chamber having a third passage for introducing fluid into the second chamber to close the shutter.

Growing community of inventors

San Vendemiano, Italy

Paolo Spinazze′