Plastic article or earthenware shaping or treating: apparatus – With electrical control system – Of intermittent delivery of fluent charges to shaping surface
Patent
1985-01-22
1986-01-07
Flint, Jr., J. Howard
Plastic article or earthenware shaping or treating: apparatus
With electrical control system
Of intermittent delivery of fluent charges to shaping surface
425146, 425167, 425256, 425258, 425260, B29C 306
Patent
active
045631441
ABSTRACT:
A hydraulic press for non-refractory material consisting of a rigid framework and a vertically moveable press pad and horizontally moveable box section. A mold cavity is defined within framework and the press pad is contained within. Moveable box section delivers stock to mold cavity, forms cover over mold cavity during manufacture, and ejects formed unit from framework. A hydraulic cylinder is provided for movement of press pad during compression of unit and to raise unit for ejection from framework. A separate hydraulic cylinder is provided for movement of box section through framework. Both cylinders are fixedly connected to the framework. Hydraulic fluid, directed by solenoid-activated valves, provides movement of cylinders. Control means include an electrical circuit using relays, timmer, pressure actuated valve, and mechanical trip switches.
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