Patent ID: 8272244

Claim:
Apparatus for stamping can lids out of metal sheet plates being delivered sequentially by a feed table ( 60 ) arranged at a front side of a stamping device, comprising: a bridge ( 10 ) supported on a frame and carrying stamping tools ( 1 ) actuated vertically in a continuous repeating manner, in that frame, in a stationary position on a feed side close in front of said tools ( 1 ) is arranged a first transverse conveying device ( 20 ) carrying a first longitudinal driving roller pair ( 31 , 32 ), as a first longitudinal conveying device one of said first driving rollers ( 31 ) is vertically adjustable by compressed air actuators ( 27 , 28 ) and the other one of said first driving rollers ( 32 ) is driven by a longitudinal positioning motor ( 34 ), thereby gradually transporting in a controlled clamped manner the metal sheet plates ( 11 , 12 ) to pass between said tools ( 1 ), in a stationary position on a discharge side close behind of said tools ( 1 ) is arranged a second transverse conveying device ( 40 ), carrying a second driving roller pair ( 51 , 52 ) as a second longitudinal conveying device, one of said second driving rollers ( 51 ) is vertically adjustable by compressed air actuators ( 47 , 48 ) and the other one of said second driving rollers ( 52 ) is driven by a longitudinal positioning motor ( 54 ), thereby delivering the metal sheet plates ( 11 , 12 ) in a controlled clamping manner or releases the metal sheet plates ( 11 , 12 ) in a controlled manner, and wherein both the transverse conveying devices ( 20 , 40 ) are arranged approximately symmetrically to the tools ( 1 ) and are separately movable by controllable linear drives ( 23 , 43 ), thereby laterally displacing the respective longitudinal driving roller pairs ( 31 , 32 ; 51 , 52 ) to a limited extent.