Patent ID: 8783082
Filing Date: 2014-07-22
Classification: B21D,B23D,Y10T

Abstract:
1. A rotary stamper comprising: a support frame having a drive assembly; an upper die plate assembly operably connected to the drive assembly for horizontal and vertical movement along a generally circular pathway; and a lower die plate operably connected to the drive assembly for movement in a linear horizontal direction only, said lower die plate having a substantially H-shaped configuration defining opposed side clearance cutouts in the lower die plate, said lower die plate including opposed I-shaped cam plates positioned within the opposed side clearance cutouts, the I-shaped cam plates having legs that protrude forward and rearward above and below the lower die plate; wherein the upper die plate assembly is slidably connected to the lower die plate for maintaining a substantially constant alignment therewith as the upper die plate assembly moves vertically towards and away from the lower die plate, said lower die plate horizontally following the upper die plate assembly, for carrying out a periodic machining operation on a moving web of material passing between the upper die plate assembly and the lower die plate.