EP 1567315 A1 20050831 - METHOD AND INSTALLATION FOR PRODUCING PLASTIC PARTS
Title (en)
METHOD AND INSTALLATION FOR PRODUCING PLASTIC PARTS
Title (de)
VERFAHREN UND ANLAGE ZUR HERSTELLUNG VON KUNSTSTOFFTEILEN
Title (fr)
PROCEDE ET DISPOSITIF DE REALISATION DE PIECES EN PLASTIQUE
Publication
Application
Priority
- CH 0300724 W 20031030
- CH 20552002 A 20021204
- CH 0300122 W 20030219
- CH 7962003 A 20030506
Abstract (en)
[origin: WO2004050325A1] The invention relates to a method and an installation for producing injection moulded parts, especially preforms (12), the liquid melt being directly received by a chemical production installation (1) and continuously supplied to an injection moulding machine (13). If the melt is in a degassing state ready to inject, at least two injection cylinders (21, 22) comprising controlled or regulated injection pistons (24, 25) are alternately charged with the continuous melt flow, said pistons enabling the injection cycle to be carried out in a push-pull mode in relation to the charging of the cylinders. The continuously supplied melt flow is degassed as much as required on the machine side, e.g. in a degassing extruder, a degassing endless screw (60, 81) or a pre-accumulator (21, 22, 62, 90). The inventive installation is used to produce injection moulded parts, especially preforms (12), the liquid melt being directly received by a chemical installation (1) and continuously supplied to an injection moulding machine (3) for the cyclic production of injection moulded parts in injection moulds.
IPC 1-7
IPC 8 full level
B29C 45/12 (2006.01); B29C 45/18 (2006.01); B29C 45/53 (2006.01); B29C 45/54 (2006.01); B29C 45/63 (2006.01)
CPC (source: EP)
B29C 45/18 (2013.01); B29C 45/535 (2013.01); B29C 45/54 (2013.01); B29C 45/542 (2013.01); B29C 45/63 (2013.01); B29C 2045/545 (2013.01); B29C 2045/547 (2013.01); B29C 2045/548 (2013.01); B29K 2067/00 (2013.01); B29K 2105/253 (2013.01)
Citation (search report)
See references of WO 2004050325A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2004050325 A1 20040617; AU 2003273716 A1 20040623; CA 2508466 A1 20040617; EP 1567315 A1 20050831
DOCDB simple family (application)
CH 0300724 W 20031030; AU 2003273716 A 20031030; CA 2508466 A 20031030; EP 03757625 A 20031030