DEVICE FOR BENDING HAIR PIN WITH STRAIGHTLY EXTENDING TUBE

摘要

PURPOSE: To provide a tube stretch straightening hairpin bender capable of producing hairpin tubes having rectilinear and approximately parallel legs in order to optimize assembly to laminated fins. CONSTITUTION: The outside diameter size of a tube T is regulated and the tube is stretch straightened by a hold clamp 66 and a feed clamp 86 when the tube T is taken in by the feed clamp 86 in a tube stretch straightening mechanism 11 prior to bending in a tube bending machine 12.