Controlled valve fittings device for an installation for the blow-moulding of containers comprising individually operable valves

摘要

A controlled valve fittings device (22) for an installation for the blow-molding of containers, includes: a low-pressure first valve (24A) which includes elements (58) for shutting off a low-pressure supply line (32); a high-pressure second valve (24B) which includes elements (58) for shutting off a high-pressure supply line (34); an exhaust third valve (24C) which includes elements (58) for shutting off an exhaust line (52); wherein each valve (24A, 24B, 24C) includes an individual actuator (60) and individual shut-off elements (58) which are controlled by the associated actuator (60) that makes them move between an open position and a shut-off position.

主权项

1. A controlled valve-fittings device (22) for an installation for the blow-molding of containers, the device (22) comprising:
a blowing line (26) which is intended to be connected in a fluid tight manner to a container that is to be blow molded; a low-pressure fluid inlet first line (32) which is connected to the blowing line; a low-pressure first valve (24A) which comprises means (58) for closing off the inlet first line (32); a high-pressure fluid inlet second line (34) which is connected to the blowing line (26); a high-pressure second valve (24B) which comprises means (58) for closing off the inlet second line (34); an exhaust third line (52) which is intended to discharge the pressurized fluid that may be contained in the container and which is connected to the blowing line (26); an exhaust third valve (24C) which comprises means (58) for closing off the exhaust third line (52); each valve (24A, 24B, 24C) comprises an individual actuator (60) and individual shut-off means (58) which are controlled by said associated actuator (60) in their movement between an open position and a shut-off position, it being possible for each actuator (60) to be operated independently of the actuators (60) of the other two valves; control means (30) which operate the individual actuators (60), wherein the operating means (30) are controlled by a cam (92) that is common so that each valve (24A, 24B, 24C) is operated in succession.