Block to provide curvature and balancing for four-high rolling m

Details Block to provide curvature and balancing for four-high rolling m Block to provide curvature and balancing for four-high rolling m

1996-05-24

1998-09-29

Larson, Lowell A.

Metal deforming

By use of roller or roller-like tool-element

With carrier for roller-couple or tool-couple

72237, B21B 1314, B21B 2900, B21B 3100

Patent

active

058132686

ABSTRACT:
Block to provide curvature and balancing, which is suitable to impart an "IN" or "OUT" pre-curvature to processing rolls (11) of a four-high rolling mill stand (12) comprising a pair of processing rolls, lower (11a) and upper (11b) rolls respectively, each of which cooperates with a relative back-up roll (13a, 13b), the processing rolls (11a, 11b) and back-up rolls (13a, 13b) cooperating at their two ends with respective chocks (15a, 15b) and (16a, 16b) and relative bearings, the block comprising at least one lower rib (18a, 118a) and one upper rib (18b, 118b) including on their respective inner surfaces curvature jack means (20, 120) cooperating with the opposite surfaces of the chocks (15) of the processing rolls (11), supporting jacks (14) being included and cooperating with the chocks (16a, 16b) of the back-up rolls (13a, 13b), at least one rib (18) including on its outer surface compensation jack means (21, 121) which are actuated when an "OUT" pre-curvature is imparted to at least one processing roll (11) associated with the block (10), the compensation jack means (21, 121) acting on the chocks (16) of the corresponding back-up roll (13).

REFERENCES:
patent: 3307386 (1967-03-01), Ward et al.
patent: 4038857 (1977-08-01), Eibe et al.
patent: 4202192 (1980-05-01), Haneda et al.
patent: 4676085 (1987-06-01), Ellis
patent: 4773246 (1988-09-01), Perret
patent: 4976128 (1990-12-01), Tajima
Patent Abstracts of Japan vol. 8 No. 57 (M-283) 15 Mar. 1984 & JP A-58 209405 (Ishikawajima Harima) 6 Dec. 1983 Abstract.
Patent Abstracts of Japan vol. 5 No. 90 (M-762) 12 Jun. 1981 & JP-A-45 036303 (Kobe Seikosho) 2 Apr. 1984 Abstract Figs.
Patent Abstracts of Japan vol. 8, No. 160 (M-312) 25 Jul. 1984 & JP-A-59 056910 (Kawasaki) 2 Apr. 1984, abstract, figures.

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