Method for real-time adjustment of a planisher
AssigneeUsinor
InventorsJacques-Yves Bourgon, Olivier Guillard, Fabrice Tondo, Olivier Madelaine-Dupuich, Pierre Lemoine
Life of this patent
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Abstract
The invention concerns a method for real-time adjustment of a planisher (1) for planishing metal strips (5), which consists, after the planished strip has been cut into a plate, in measuring said plate at the output of the planisher outside a support zone, correcting said measurement so as to eliminate the influence due to selfweight of the plate, and correcting, as the case may be, the clamping of the rollers located at the planer output so as to obtain a plate with controlled curve.
Claims9
Method for adjusting in real time a planisher that is to planish metal strips, plates or sheets, characterised in that:
- after the strip (5) has been planished, it is cut to obtain a planished plate (8) or a planished sheet;
- the curvature of the planished plate (8) resulting either from the planishing of the cut strip (5) or from the planishing of the plate (5) is measured at the outlet of the planisher (1) outside a support region;
- the measurement is corrected in such a manner as to eliminate the influence attributable to the dead weight of the planished plate (8);
- and
- if necessary, the clamping of the rollers (4a) and (4b) located at the outlet of the planisher (1) is corrected in such a manner as to obtain a planished plate (8) having a controlled bend.
Planishing installation of the type comprising a planisher for planishing metal strips, plates or sheets, characterised in that it comprises means for cutting the strip (5), after planishing, into planished plates (8) or into planished sheets, means for measuring the residual bend of the planished plates (8) or planished sheets resulting either from the planishing of the cut strip (5) or from the planishing of the plate (5) or the sheet, at the outlet of the planisher (1), and means for modifying the clamping of the rollers (4a) and (4b) located at the outlet of the planisher (1) as a function of the information provided by the means for measuring the residual bend.
Dependencies are inferred from the claim text.