Importance

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Abstract

An injection molding machine comprises: a body (12) provided with a rectilinear cavity having a first end which is open and a second end (20a) opposite to the first one in which a nozzle (21) for injection into the mould (16) is disposed; a floating punch (15) that is slidable within the cavity in the hollow body (12) between said first and second ends to define an injection chamber (20) with said second end (20a), said punch being provided with a passage (15c) to supply a way for access to the chamber (20); feeding means (13) adapted to be received in the first open end of the hollow body, to feed the injection chamber (20) with the material through the passage (15c) in the floating punch (15); thrust means (14) adapted to be received in the first open end of the hollow body (12) as an alternative to the feeding means (13), to make the floating punch (15) slide towards the injection nozzle (21), thereby causing injection into the mould of the material previously fed to the chamber (20).

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First Claim