Patent ID: 7257975
Filing Date: 2007-08-21
Classification: B21D

Abstract:
1. A flange turning machine for creating a flange on a spiral pipe, the machine comprising: a mandrel; jaws configured to hold the spiral pipe against the mandrel; a rotor configured to rotate; a slide configured to move radially from a start position on the rotor to an end position on the rotor; a central shaft slide configured to move from a rearward position to a forward position; a slide moving arm configured to move the slide from the start position to the end position as the central shaft slide moves from the rearward position to the forward position; and a flange turning roller mounted on the slide, and configured to create the flange by deforming an end portion of the spiral pipe against the jaws as the rotor rotates and the slide moves from the start position to the end position.