Plastic article or earthenware shaping or treating: apparatus – Female mold and charger to supply fluent stock under... – With means to close mold
Patent
1996-06-21
1998-05-12
Mackey, James P.
Plastic article or earthenware shaping or treating: apparatus
Female mold and charger to supply fluent stock under...
With means to close mold
425589, 4254512, B29C 4567
Patent
active
057501637
ABSTRACT:
The hydraulic mould closure device for an injection moulding machine has a pressure convertor, whose high pressure piston extends into a passage leading to the pressure side of the closure piston and closes it, when producing the closure pressure. Formed in the low pressure piston is an actuating cylinder into which an actuating piston extends. The actuating piston is connectable to the hydraulic tank and to the hydraulic pump. Adjacent to the low pressure cylinder of the pressure convertor there is a space whose diameter is larger than that of the low pressure cylinder. The actuating piston also has lateral openings which move out of the actuating cylinder as soon as the high pressure piston moves into the high pressure cylinder. The piston element of the pressure convertor is moved very rapidly out of the rest position into its active position so that operation occurs with reduced control times.
REFERENCES:
patent: 4249880 (1981-02-01), Wohlrab
patent: 4325287 (1982-04-01), Hehl
patent: 4380427 (1983-04-01), Hehl
patent: 4443179 (1984-04-01), Wohlrab
patent: 4846664 (1989-07-01), Hehl
patent: 4981426 (1991-01-01), Katashi
patent: 5061175 (1991-10-01), Iwamoto
patent: 5336462 (1994-08-01), Wohlrab
Filippi Werner
Klein Heinz Hermann
Dr. Boy GmbH
Mackey James P.
LandOfFree
Hydraulic mould closure device for an injection moulding machine does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hydraulic mould closure device for an injection moulding machine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulic mould closure device for an injection moulding machine will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-977166