Circumference length no adjusting the device and the circumference length no adjusting method for an endless - metal ring

摘要

Circumference length no adjusting apparatus for an endless - metal ring, in which a continuous metal ring (104) to a plurality of rollers (1010, 1020) is guided and a distance between the plurality of the rollers (1010, 1020) is increased in such a way that the endless metal ring (104) is stretched, whereas the majority of the rollers (1010, 1020) are rotated, as a result of which the endless metal ring (104) is plastically deformed and a peripheral length of the endless metal ring (104) to a peripheral, - length (l (4)) is adjusted, wherein the apparatus comprises:a peripheral length measuring device for measuring the peripheral length (l (1)) of the endless metal ring (104), is set before the peripheral length; a control unit for adjusting the peripheral length of the endless metal ring (104) to a peripheral, - length (l (4)) by enlarging the distance between the rollers (1010, 1020) based on the measured peripheral length (l (1)) in such a way that the peripheral length (l (2)) of the endless metal ring, if the peripheral length is set, is longer than..