Importance

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Abstract

The present invention relates to an oscillating assembly for pivoting a blanking die that is constructed and arranged to cut blanks from sheet material. The oscillating assembly comprises a die supporting structure that pivots about a pivot axis. The die supporting structure receives and supports the die such that the sheet material can be fed into the die in a feeding direction and such that the pivoting of the die supporting structure pivots the die relative to the sheet material. A reversible rotary driving assembly rotates a rotatable output shaft in opposing first and second rotational directions. A linearly movable die driver is operatively connected to the output shaft such that (a) rotating the shaft in the first rotational direction thereof moves the die driver generally linearly in a first die driving direction and (b) rotating the shaft in the second rotational direction thereof moves the die driver generally linearly in a second die driving direction opposite the first die driving direction. The die driver is operatively connected to the die supporting structure such that (a) moving the die driver in the first die driving direction thereof as aforesaid pivots the die supporting structure to a first cutting position wherein the blanking die can cut a first blank from the sheet material fed therein and (b) after cutting the first blank and advancing the sheet material relative to the die in the feeding direction, moving the die driver in the second die driving direction thereof as aforesaid pivots the die supporting structure to a second cutting position wherein the blanking die can cut a second blank from the sheet material.

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First Claim