AN IMPROVED MECHANISM FOR UPWARD LANCING IN A PROGRESSIVE DIE ASSEMBLY

摘要

The present invention relates to an improved mechanism for upward lancing in a progressive die assembly. The mechanism comprises plurality of springs means (la&lb), punch means (5), punch actuator means (6), lever means (7), lever actuator means (8), floating insert means (9) and a stripper insert means (10). The lever actuator means (8) is positioned in substantially vertical direction. The lever actuator comprises a collar means (8a), and guide means (8c). The lever means (7) is a substantially oblong shaped which is located on a base plate with a hinged hole (7b). The hinge or pin hole means (7b) is located substantially at center of the lever (7). The lever is provided with a plane elevated portion having a predetermined length substantially at the center of the lever (7). The floating insert means (9) comprises a slot means (9a) and plurality of edges (9b). The slot means (9a) being able to accommodate said spring means (lb). The stripper insert means (10) comprises a slot means (10a) for accommodating and guiding the floating insert means (9).