Patent ID: 7937980
Filing Date: 2011-05-10
Classification: B21C

Abstract:
1. A drawing machine for drawing a longitudinal workpiece, the drawing machine comprising: (a) a sprocket chain comprising a plurality of chain elements, a plurality of connecting links, a plurality of first connecting pins, a plurality of second connecting pins, and a plurality of third connecting pins, each of the connecting pins being associated with a respective chain element; and (b) a plurality of drawing tools; wherein the sprocket chain carries the plurality of drawing tools; wherein a first chain element of the plurality of chain elements is linked to a second chain element of the plurality of chain elements via a first connecting link of the plurality of connecting links; wherein each drawing tool of the plurality of drawing tools directly corresponds to at least one respective connecting link of the plurality of connecting links; wherein each drawing tool of the plurality of drawing tools is in direct contact with the at least one respective connecting link of the plurality of connecting links by way of at least a respective first connecting pin of the plurality of first connecting pins and a respective second connecting pin of the plurality of second connecting pins; wherein each drawing tool corresponds to a chain element of the plurality of chain elements; and wherein a third connecting pin of the plurality of third connecting pins associated with the second chain element contacts the first connecting link of the plurality of connecting links between a first connecting pin and a second connecting pin.