| 摘要 |
PURPOSE:To improve the quality of a product by providing calibers symmetrical with the center to upper and lower rolls of an edger via partition walls of different heights and forming the calibers in such a manner that said calibers can freely elongate and contract in the longitudinal direction of the body. CONSTITUTION:Sleeve bodies 14a, 14b are fitted and provided symmetrically with a rolling center line Y onto arbors 13 of the upper and lower rolls. The rough calibers 15a, 15b are inscribed between the 1st partition walls 16a, 16b and the 2nd partition walls 161a, 161b and finishing calibers 17a, 17b are inscribed on the outside of the partition walls 161a, 161b. The height H2 of the 2nd partition wall is set higher than the height H1 of the 1st partition wall. After rough rolling of the calibers 15a, 15b, the sleeve bodies 14a, 14b are reduced in the spacing S2 therebetween and the web ends of the rolling material 1 are restrained by the end faces of the 2nd partition walls 161a, 161b, by which the rolling material is rolled. The web deviation is thus prevented and the quantity of the product is improved. |
