Plastic article or earthenware shaping or treating: apparatus – Control means responsive to or actuated by means sensing or... – Feed control of material en route to shaping area
Patent
1994-10-19
1996-12-03
Heitbrink, Tim
Plastic article or earthenware shaping or treating: apparatus
Control means responsive to or actuated by means sensing or...
Feed control of material en route to shaping area
60484, 425149, B29C 4582
Patent
active
055805850
ABSTRACT:
A hydraulic operational system for an injection molding machine, including a hydraulic line network, a plurality of hydraulic drives for driving different components of the injection molding machine, a plurality of directional control valves, for connecting the hydraulic drives with the network, a constant delivery pump for supplying the hydraulic line network with hydraulic fluid, and a steplessly controlled electric motor or a multi-stage electric motor for driving the constant delivery pump, and a maximum driving speed of which is controlled so that it corresponds to the hydraulic pump operation at which the hydraulic pump provides at least one of a delivery volume and a hydraulic fluid pressure corresponding to the at east one of a maximum amount of the hydraulic fluid and a maximum pressure of the hydraulic fluid required for operating all of the plurality of hydraulic drives.
REFERENCES:
patent: 4100822 (1978-07-01), Rosman
patent: 4544340 (1985-10-01), Hehl
patent: 4988273 (1991-01-01), Faig et al.
patent: 5253997 (1993-10-01), Kamada
Hydraulic Injection Molding Machinery, Feb. 1994.
Webster's Ninth New Collegiate Dictionary, p. 469, 1986.
Battenfeld GmbH
Heitbrink Tim
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