Metal strip stretching mill

US4408474A · kind A · utility

Assignee

• Fa. Erwin Kampf GmbH & Co. · DE

Inventors

• Armin Hutzenlaub · Wiehl, DE
• Willi Schmidt · Blankenloch, DE

Key dates

• Filing date: Jul 10, 1981
• Grant date: Oct 11, 1983
• Expiry date: Jul 10, 2001

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B21D1/05
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A metal strip stretching mill comprising a stretching station and, oppositely adjacent thereto, a group of pulling rolls and a group of braking rolls with adjustably speed-controlled drives on the rolls in the immediate vicinity of the stretching station and torque-controlled drives of stepped-up or stepped-down power on all other rolls, and a disconnectable clutch at the roll trunnion of at least one torque-controlled roll in the middle of each roll group, for a downward expansion of the usable power range of the installation through selective disconnection and idling of said rolls.