AUTOMATIC DIE SET Russian patent published in 2002 - IPC

FIELD: plastic metal working, possibly die sets for forming dents in tubular parts at automatic feed and discharge of parts. SUBSTANCE: in body of die set there are spring loaded punches whose number corresponds to that of shaping protrusions of working portion of lower die. Working portions of punches are in the form of wedges that may be joined with lower die through flexible and independent connection. Lower die engages with spring-loaded rod. At one continuous stroke of lower die blank is centered, based and shaped. Stripper mounted over horizontal pan of mechanism for charging and discharging parts and stopper are provided for reliable removing part, placing it in horizontal pan and basing it. Possibility for centering blank is provided due to inlet cone portion of lower die and cylindrical portion along inner diameter of blank. There is member for separating stacked blanks of parts fed to vertical portion of pan from feeder. Main effort of press is transferred to die set at direct stroke of press. Lubricating ring prevents damage of inner surface of part. EFFECT: enhanced quality of parts, improved efficiency of die set. 6 cl, 4 dwg