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1. (WO2017017175) INJECTION-MOULDING MACHINE WITH MULTI-DAYLIGHT MOULD FOR INJECTION-COMPRESSION MOULDING APPLICATIONS AND INJECTION-COMPRESSION MOULDING PROCESS

Pub. No.:    WO/2017/017175    International Application No.:    PCT/EP2016/067986
Publication Date: Fri Feb 03 00:59:59 CET 2017 International Filing Date: Fri Jul 29 01:59:59 CEST 2016
IPC: B29C 45/17
B29C 45/20
B29C 45/32
B29C 45/56
Applicants: NETSTAL-MASCHINEN AG
Inventors: GRANGE, Jean-Luc
ITEN, Thomas
Title: INJECTION-MOULDING MACHINE WITH MULTI-DAYLIGHT MOULD FOR INJECTION-COMPRESSION MOULDING APPLICATIONS AND INJECTION-COMPRESSION MOULDING PROCESS
Abstract:
A description is given of an injection-moulding machine with a multi-daylight mould (6) with a snorkel (12), by way of which melt can be fed into a central part (6b) of the multi-daylight mould, wherein the snorkel (12) and the nozzle (11) of the injection unit (2) can be pressed against one another. According to the invention, it is provided that, during the injecting operation, in particular during an injecting operation before and/or during the performance of a compression stroke (HP) of the multi-daylight mould (6), the injection unit (2) can be fixed in a position, seen in the longitudinal direction of the machine, in which the nozzle (11) of the injection unit (2) is pressed against a prestressed, movable part (12c) of the snorkel (12), or in which the snorkel (12) is pressed against a prestressed, movable part (11b) of the nozzle (11) when the multi-daylight mould (6) is in a position for performing a compression stroke (HP). The prestressing of the movable part and the stroke (HS, HD) thereof are such that the nozzle (11) and the snorkel (12) remain pressed against one another during the injecting operation.