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AssigneeClecim
InventorJean Perret
Estimating the term…
A rolling mill with axially movable rolls, comprising a supporting frame (4), at least two working rolls (1, 1') and at least two back-up rolls (2, 2'), at least one of the working rolls (1) being associated with means (42) for moving the roll (1) along its axis (10) and, for each chock (3), with two symmetrical sets of at least two bending jacks (6, 66). The offset of the roll (1) in relation to a centering position is measured continuously, and the pressure exerted by each bending jack (6) is adjusted at each moment as a function of the offset measured and of the position at the same moment of the particular jack (6) in relation to the mid-plane (P5) of a bearing (12), such that the resultant of the bending forces exerted by all the jacks (6, 66) remains directed at each moment in the mid-plane (P5) of the bearing (12), the bending jacks bearing on the chocks by sliding faces.
A rolling mill with axially movable rolls, comprising
In a process for adjusting the profile of rolls movable axially in rolling mill comprising, inside a supporting frame, at least one working rolls which bear along a rolling plane on at least two back-up rolls and the ends of which are carried, by means of bearings, in chocks mounted so as to be movable in the supporting frame, parallel to the rolling plane, said process including the steps of carrying out simultaneously an axial movement of at least one working roll in relation to a centering position, in which the two working rolls are symmetrical relative to the mid-plane of the rolled product, and bending of the moved roll, by exerting a bending force on its ends, said bending force being exerted on each chock by means of two sets of at least two bending jacks set axially apart from one another, said bending jacks of each set being mounted on each side of said rolling plane, on a supporting piece integral with a frame and bearing on a sliding face provided on the corresponding chock parallel to the axial direction of movement, the improvement comprising, for effecting the bending of the working roll during its axial movement, the steps of
Dependencies are inferred from the claim text.