Spindle press with continuously rotating flywheel - has several, parallel pressure chambers allocated to RAM, each with separate hydraulic liq. supply

摘要

The )spindle press has a flywheel continuously rotating in the same sense, which is connected to the spindle by a clutch actuated by a pressure medium only during the downstroke and during part of the up stroke of the press. The press ram (2) has a tool mounting plate (9) attached to its underface by pistons (15, 16) with collars (25, 25') attached to the upper ends of the piston rods (24, 24'). The pistons are subjected to hydraulic pressure, with the hydraulic fluid supplied separately to each piston and at a different pressure, in order to counteract any tilting of the ram due to eccentric loading during the press operation. ADVANTAGE - Precise operation even on eccentric load.