Title:
UPPER ROLL SWING DEVICE FOR STRAIGHTENING STRAIN OF WELDED SHAPE
Document Type and Number:
Japanese Patent JP3474552
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prevent occurrence of a roll mark by applying a swing mechanism to right and left upper rolls, which can press a flange surface to be straightened while keeping rotating circumferential surfaces of the right and left upper rolls constantly in a parallel state to the flange surface.
SOLUTION: Bearing boards to support one end of rotational shaft of each right and left upper roll 2 are prepared respectively. Shaft pins parallel to an inserting direction of a work a to be straightened are attached respectively to head ends of supporting frames 22 for each right and left upper roll. Each bearing board supporting upper roll 2 rotatively is attached to the head end of each upper roll supporting frame via the shaft pin so that each bearing board can rotate around an axis of each shaft pin.
Inventors:
Yasutoshi Takahashi
Kan Murano
Yasuhiro Yamaguchi
Kan Murano
Yasuhiro Yamaguchi
Application Number:
JP2001216036A
Publication Date:
December 08, 2003
Filing Date:
July 16, 2001
Export Citation:
Assignee:
Kubo Industry Co., Ltd.
International Classes:
B21D3/02; B21D3/05; (IPC1-7): B21D3/05
Domestic Patent References:
| JP11319950A |
Attorney, Agent or Firm:
Tadashi Harasaki