ROD-SHAPED STEEL MATERIAL GUIDING METHOD AND GUIDING DEVICE

Title:

ROD-SHAPED STEEL MATERIAL GUIDING METHOD AND GUIDING DEVICE

Document Type and Number:

WIPO Patent Application WO/2015/076316

Kind Code:

A1

Abstract:

The purpose of the invention is to improve the quality of a rod-shaped steel material by preventing the generation of scratches on the rod-shaped steel material, and to obtain a stable ring shape. First to third guides (G1, G2, G3) are disposed to guide the rod-shaped steel material from pinch rolls (P) to a laying head (H). The first guide (G1), on the most upstream side, is provided with a plurality of bending and shaping roller guides (G11, G12) which impart a curvature to the rod-shaped steel material, bending it in the direction of the laying head (H). The second guide (G2) is provided with a plurality of directing roller guides (G21, G22) which guide the rod-shaped steel material downstream. The third guide (G3), on the most downstream side, is contiguous with the second guide (G2) and is provided with a plurality of bending-back and shaping roller guides (G31, G32) for bending back the rod-shaped steel material in the direction of the laying head (H), to make it straight.

Inventors:

NAKAMURA YOSHITAKA (JP)
ISHIBASHI HIRONORI (JP)
SADANO YUTAKA (JP)
YOSHIZAWA SADAO (JP)

Application Number:

PCT/JP2014/080699

Publication Date:

May 28, 2015

Filing Date:

November 12, 2014

Export Citation:

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Assignee:

NIPPON STEEL & SUMIKIN SST (JP)
KOTOBUKI SANGYO (JP)

International Classes:

B21B39/00; B21B39/14; B21C47/14

Foreign References:

JP2013530050A	2013-07-25
JP2003205308A	2003-07-22
JPS58116921A	1983-07-12
JP2005280941A	2005-10-13
JP2010099669A	2010-05-06

Other References: