Device for detecting and regulating the planeness of strip-shaped rolled products, especially thin-gage strips, for cold rolling mills

US4750343A · kind A · utility

Inventors

• Gerhard Richter · Kreuztal, DE
• Hans-Peter Richter · Bad Marienberg, DE
• Axel Barten · Netphen, DE

Key dates

• Filing date: May 21, 1985
• Grant date: Jun 14, 1988
• Expiry date: May 21, 2005

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B21B2269/02
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

The device for the detection and regulation of the planeness of strip-shaped rolled products, especially thin-gage strips (1), for cold rolling mills comprises a planeness measuring system with individual measuring elements, which system includes, for example, a planeness measuring roller (3) composed of individual measuring disks (4) with force measuring transmitters arranged along the circumference. By the planeness measuring roller (3), the strip tensile stress is measured over the strip width (5), from which is calculated the longitudinal distribution (.DELTA.L/L) over the strip width as a characteristic variable for the strip planeness. Regulation of the strip tensile stress is effected by installations for cooling and/or lubrication and/or bending and/or pivoting of the rolls. Measuring units (6) for measuring the position of the strip edges (7, 8) with respect to the planeness measuring roller (5) and detecting the thus-given overlapping of the measuring disks (4), located in the zone of the strip edges (7, 8), of the measuring roller (3), by the strip (1) are arranged on both sides of the traveling strip, for an exact determination of the strip tensile stress in the margina…