COMBINATION PRESS TOOL Russian patent published in 1994 - IPC

FIELD: plastic working of metals. SUBSTANCE: combination press tool comprises lower plate with built-in piercer, cut-off die, upper plate with cut-off punch connected by rods and shackles with rocker arm which has an ejector consisting of fixed and movable parts with a provision for the latter to move vertically relative to the fixed part. Press tool is additionally provided with lifting shoe which has an opening accommodating cut-off die and is connected by rods and columns with upper and lower plates, respectively. Movable part of the ejector is moved out and fixed above the piercer and/or fixed part of the ejector which latter has a central projection or a hollow matching the shape of the forging within the entire period of rocker arm dwell in the upper position. EFFECT: improved design. 3 dwg