Title:
ROLLING MILL AND SETTING METHOD FOR ROLLING MILL
Document Type and Number:
WIPO Patent Application WO/2019/221297
Kind Code:
A1
Abstract:
Provided is a 4-high or more rolling mill comprising a plurality of rolls that includes at least a pair of work rolls and a pair of reinforcing rolls supporting the work rolls, wherein any one roll among the rolls arranged in the depressing direction serves as a reference roll, and the rolling mill is equipped with: load detection devices that, at a depression fulcrum position on the work side and the drive side of each reinforcing roll, detect the depressing-direction load acting in the depressing direction of the rolls; pressing devices that are provided to the roll chocks of at least the rolls other than the reference roll on either the input side or the output side of the chock in the rolling direction, and that press the roll chocks in the rolling direction; drive devices that are provided to the roll chocks of at least the rolls other than the reference roll in a position opposite each pressing device in the rolling direction, and that cause the roll chocks to move in the rolling direction; and a position control device that fixes the rolling-direction position of the roll chock of the reference roll as a reference position, and drives the drive devices to control the position, in the rolling direction, of the roll chocks of the rolls other than the reference roll.
Inventors:
ISHII ATSUSHI (JP)
KASAI DAISUKE (JP)
NIKKUNI DAISUKE (JP)
KASAI DAISUKE (JP)
NIKKUNI DAISUKE (JP)
Application Number:
PCT/JP2019/019809
Publication Date:
November 21, 2019
Filing Date:
May 17, 2019
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
International Classes:
B21B37/00; B21B31/02; B21B38/08; B21C51/00
Foreign References:
| JPH10263656A | 1998-10-06 | |||
| JPH11347610A | 1999-12-21 | |||
| JP2009178754A | 2009-08-13 | |||
| JP2013066934A | 2013-04-18 | |||
| JPS499107B1 | 1974-03-01 | |||
| JP2014004599A | 2014-01-16 | |||
| JPH08294713A | 1996-11-12 | |||
| JP4962334B2 | 2012-06-27 |
Other References:
See also references of EP 3797889A4
Attorney, Agent or Firm:
BRIGHTAS IP ATTORNEYS (JP)
Download PDF: