FOLLOW-UP DEVICE OF ON-LINE ROLL GRINDING EQUIPMENT

PURPOSE:To perform an on-line grinding of roll by providing grinders capable of horizontally turning together with upper and lower rolls in one body to the upper and lower sides of the pass line of a cross roll mill and bringing grinding- bodies close to or away from the rolls in the roll-radial directions. CONSTITUTION:A frame 10 is provided which is movable in the rolling direction Z along guides 9a, 9b attached to the inside faces of housings 7a, b and located at the upper side of a pass line 8, and a supporting bed 34 of a roll grinder 22 is attached horizontally turnably to the frame 10 through pins 25, 26; on the other hand, a supporting bed 34 of a lower grinder 23 is horizontally turnably attached to a supporting bed 30 of a guide 29 through a pin 31. Next, rolls 1, 3 and 2, 4 are set at a prescribed cross angle, and the grinders 22, 23 and the rolls 1, 2 are horizontally turned in one body; then grinding bodies 21a, b are pressed against the rolls 1, 2 parallelly to the roll axes and perpendicularly to the rolls 1, 2 surfaces respectively, to grind the whole width of each roll. In this way, the on-line roll-grinding operation is smoothly and precisely performed.