thorn to spritzblasformen of a hollow object and the thorn versehenene machine.

摘要

The invention relates to a mandrel (2) for injection blow-moulding of a hollow article made from plastic, having a hollow cylindrical body (8) comprising a portion (A) for connecting to a blow-moulding injection machine axially extended by a portion (B) for positioning in the wall of a mould associated with the machine which is itself axially extended by a blowing portion (C) intended to be housed in the cavity of the mould. The mandrel comprises first means for intermittent blowing via a first orifice (4) for blowing a previously injected parison around the blowing portion (C). The first means are arranged in the hollow article (8). The mandrel comprises, arranged in the hollow article (8), second means for intermittent blowing via a second blowing orifice (6), the first and second orifices (4, 6) being separate and axially spaced with respect to each other. …IMAGE…