FIELD: technological processes.
SUBSTANCE: press includes working cylinder with plunger, hydraulic unit, pneumohydraulic feed pump, delivery pipe, return cylinders and hydraulic cutoff control valve with electric drive. Analog pressure gauge and electromodulated safety valve are installed in the delivery pipe. Adjustable throttles are installed in discharge line of the working cylinder. Inlets of both throttles are connected to outlets of hydraulic cutoff control valve. Press features programmed control device including programming unit, comparison unit, control units, correction unit. Comparison unit output is connected to the first input of correction unit. The second input of correction unit is connected to programming unit output, while the output of correction unit is connected to the electric input of safety valve.
EFFECT: extended technological functions of press.
2 dwg
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