PRESS UNIT FOR PLASTIC METAL WORKING Russian patent published in 1997 - IPC

FIELD: metal working; transfer press or like moulding machine for transfer of sheet parts through press or machine. SUBSTANCE: device has locks for gripping sheet parts secured on carriages arranged in tandem. Carriages are directed along curvilinear path transporting sheet blank from one working position to nonworking zone. Reverse transfer is interrupted in intermediate position for time of forming of sheet parts. Other carriages transport parts from nonworking zone to other working position with reverse transfer interrupted also in intermediate position. Locks are installed for vertical displacement to provide removal and stowing of sheet parts on working positions and additional displacement for setting lock on press movable table. Owing to use of intermediate accumulators in nonworking zones, transportation displacements are considerably reduced. EFFECT: increased accelerations at displacement, simplified adjustment of locks for different dimensions of parts, facilitated replacement of press dies. 5 cl, 6 dwg