Patent · US Expired

Rolling mill for rolling or sizing metal pipes

US6945084B2 · kind B2 · utility

5Cited by
4References
23Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 21, 2003
Grant dateSep 20, 2005
Priority date
Expiry dateJul 17, 2023

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB21B2203/06
  • WIPO fieldMachine tools
  • WIPO sectorMechanical engineering

Abstract

A rolling mill for rolling or sizing of metallic pipes, bars and wires has a plurality of rolling units which are arranged on a straight line close to one another and can be exchanged in total, partly or individually, each of the rolling units having at least three rolls which are arranged in a star-like configuration around a rolling mill axis, drive shafts and motors each driving a respective one of the rolls in all the rolling units, a rolling unit housing provided for the rolling units, roll bearings provided for the rolls, and multi-part roll shafts provided for supporting the rolls so that the rolls can be exchanged without dismounting of the rolling unit housing and the roll bearings, the rolling units holding the rolls inside and outside of the rolling mill in their operational positions.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.