Apparatus for and a method of an intermittent feeding of a strip shaped blank to a press

An apparatus for an intermittent feeding of a strip shaped blank to a press equipped with tools for an intermittent working of the strip shaped blank, said apparatus having a housing, a first feeding roller and a second feeding roller, wherein;

• said feeding rollers are adapted to accommodate the said strip shaped blank arranged between the said feeding rollers for said feeding;
• a first intermittently operating electric servomotor is drivingly connected to at least said first feeding roller;
• said first feeding roller includes a longitudinal center axis and is designed symmetrically relative to a plane of symmetry extending perpendicularly to said longitudinal center axis;
• an elongate rocker includes a first end and a second end opposite said first end, said first feeding roller being supported for rotation in by said rocker;
• said second feeding roller is arranged on a roller shaft and is rigidly connected thereto;
• said first end of said rocker is arranged on a first end area of a rocker shaft and is rigidly connected thereto;
• said rocker shaft is mounted for rotation at a second end area opposite the first end area in said housing so that said rocker is supported in an overhung state;
• a means for a lifting off said first feeding roller, includes a control rod pivotally mounted to said second end of said rocker, said control rod having a longitudinal center axis;
• a feeding roller pressing on device which includes a spiral pressing spring which rests at one ends on said rocker and includes a further longitudinal center axis;
• and
• said control rod, said spiral pressing spring and said first feeding roller are arranged relative to each other in such positions that said longitudinal center axis of said control rod and said longitudinal center axis of said spiral pressuring spring define a geometrical plane which coincides with said plane of symmetry of said first feeding roller.