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1. IN2496/KOLNP/2014 - ROLLER LEVELER AND PLATE MATERIAL CORRECTION METHOD USING SAME

Office
India
Application Number 2496/KOLNP/2014
Application Date 05.11.2014
Publication Number 2496/KOLNP/2014
Publication Date 20.11.2015
Publication Kind A
IPC
B21D 1/05
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
1Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
05Stretching combined with rolling
Applicants JP STEEL PLANTECH CO.
Inventors ABE Keizo
AOYAMA Toru
SANO Toru
Priority Data 2012101004 26.04.2012 JP
Title
(EN) ROLLER LEVELER AND PLATE MATERIAL CORRECTION METHOD USING SAME
Abstract
(EN)
A roller leveler (100) equipped with: a leveling roll unit (20) having multiple leveling rolls (6 8a 8b) that sandwich a plate material (P) therebetween and rotate so as to transfer the plate material while pressing against the plate material; pressing cylinders (4a 4b) that press against the plate material at the entrance and the exit of the leveling roll unit (20) via the leveling rolls (6 8a 8b); and a drive mechanism (15) that causes the leveling rolls (6 8a 8b) to rotate thereby transferring the plate material (P). At least one leveling roll (8b) of the multiple leveling rolls (6 8a 8b) is a stepped structure having a larger diameter width direction center part (21) corresponding to the center part of the plate material in the width direction and smaller diameter width direction end parts (22) corresponding to the ends of the plate material in the width direction.