DEVICE FOR STAMPING RECTANGULAR SHEET PARTS Russian patent published in 1994 - IPC

FIELD: plastic metal working. SUBSTANCE: before stamping, punch holder occupies uppermost position in which there is a clearance between punches and die for the passage of a sheet. When a turntable turns through a certain angle, a sheet placed on it in advance slides down over inclined table to the stops and encloses die slots and projections on the top. Punches move down from initial position and stamp rectangular parts. The sheet is simultaneously cut by one or two punches of first row. Then it is simultaneously cut maximum by two punches of first and second rows or maximum by four punches because punches of first and second rows are offset successively along the rows. EFFECT: improved design. 8 dwg