Metal deforming – With use of control means energized in response to activator... – Metal deforming by use of roller or roller-like tool element
Patent
1987-07-06
1990-03-27
Bray, W. Donald
Metal deforming
With use of control means energized in response to activator...
Metal deforming by use of roller or roller-like tool element
72 11, 72 16, 72 21, 364472, B21B 3708
Patent
active
049109855
ABSTRACT:
The invention provides a new apparatus for the detection, measurement and display of roll and roll bearing eccentricity in a rolling mill, and also an apparatus for correction of such eccentricities. The apparatus comprises individual narrow band-pass filter modules, each dedicated to the detection and development of a signal corresponding to one eccentricity, such as fundamental back-up roll eccentricity, fundamental work roll eccentricity and fundamental bearing eccentricity, or any individual harmonics of the fundamentals that are of sufficient value to merit display and corrective action. The resultant signals from the different modules are summed and applied to a display, or employed to take corrective action. Such dedicated modules can be made relatively cheaply and are stable requiring little maintenance, as compared to the more complex equipment proposed hitherto, requiring shaft encoders and/or high speed computers. Preferably each filter module comprises a first frequency controllable phase locked narrow band filter which removes as much as possible of the extraneous "noise" of the rolling pressure signal, and a second matched filter which is able to operate rapidly with the cleaner signal provided to it by the first filter.
REFERENCES:
patent: 3312091 (1967-04-01), Kobayashi
patent: 3709009 (1973-01-01), Shiozaki et al.
patent: 3795124 (1974-03-01), Diolot
patent: 3920968 (1975-11-01), Imai et al.
patent: 3928994 (1975-12-01), Ichiryu et al.
patent: 4036041 (1977-07-01), Ichiryu et al.
patent: 4038848 (1977-08-01), Ichiryu et al.
patent: 4299104 (1981-11-01), Hayama et al.
patent: 4648257 (1987-03-01), Oliver et al.
patent: 4656854 (1987-04-01), Stewart et al.
patent: 4685063 (1987-08-01), Weihrich et al.
Alcan International Limited
Bray W. Donald
LandOfFree
Method and apparatus for the detection and correction of roll ec does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for the detection and correction of roll ec, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for the detection and correction of roll ec will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1642432