Injection system

Details Injection system Injection system

B - Operations, Transporting

29

C

B29C 45/28 (2006.01)

Patent

CA 2617952

Injection system with closing rod (2) provided with a cleaning device (6, 7, 8) suitable for removing the powder of molten plastic that builds up in the movement areas of the closing rod (2) , in particular in the thrust bearing (3), during the normal operation of a molding machine. Advantageously the system according to the invention avoids the limitation of the piston stroke and the subsequent blockage with time and thus also the blockage of the closing rod, considerably reducing the number of maintenance operations and thus increasing the productivity of the molding machine.

La présente invention concerne un système d~injection avec loquet (2) doté d~un dispositif de nettoyage (6, 7, 8) adapté à l~élimination de la poudre de plastique fondu qui s~accumule dans les zones de déplacement du loquet (2), en particulier dans le palier de butée (3), en cours de fonctionnement normal d~une machine à mouler. De manière avantageuse, le système selon l~invention empêche la restriction de la course du piston et le blocage ultérieur avec le temps et, par conséquent, également le blocage du loquet, en réduisant considérablement le nombre d~opérations d~entretien et, en augmentant, par conséquent, la productivité de la machine à mouler.

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