Straightening device

US4640115A · kind A · utility

Assignee

• Benteler-Werke AG · DE

Inventors

• Franz Hartmann · Geesthacht, DE
• Heinz Hefendehl · Altenbeken, DE

Key dates

• Filing date: Jul 3, 1985
• Grant date: Feb 3, 1987
• Expiry date: Jul 3, 2005

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B21D3/04
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

In order to increase output of pipe straightening devices, there is provided a driving unit between a preparatory station for the pipes and a feeding station which advances the pipes from the preparatory station in axial direction one after the other in the feeding station. The feeding station includes a succession of rotation symmetrical guiding elements supported for rotation about axes which extend parallel to the feeding path for the pipes. The guiding bodies prevent striking of unbalanced pipes against the feeding unit and permit axial feeding of the pipes in a straightening station.