The calender, quick open manner, and the calender of the consecutive roll especially in the super calendar, the liquid pressure type device of the consecutive roll especially in the super calendar

摘要

(57) Abstract As for this invention, in the calender (10) where paper web size or the board web size (W) which the calendering nip (N₁ - N₉) which is formed 2 distribution facilities it is done or by the intermediate roll (15 - 22) above that with the variable crown most significant roll (13), the variable crown least significant roll (14), and the most significant roll (13) and the least significant roll (14) the calender are applied pass, it is something regarding the quick open manner of the consecutive roll especially in the super calendar. These rolls (13 - 22) in order to form the roll stack (12) which substantially is vertical, are allotted, the intermediate roll (15 - 22), the liquid pressure type relief cylinder (155 - 225) depending, being supported, lets escape the nip load which it occurs with the mass of the bearing box (151 - 221) of the aforementioned intermediate roll (15 - 22) and the auxiliary equipment (154 - 224) which it is related to those. The least significant roll (14) of the consecutive roll fallout during rapidity opening of the consecutive roll, completely, or partly discharging the letting escape pressure inside the liquid pressure type relief cylinder (155 - 225), you open the calendering nip (N₁ - N₉). Controlling the fluid which flows out from the relief cylinder (155 - 225) with the valve (156 - 226) which is concatenated to the relief cylinder (155 - 225) of each intermediate roll (15 - 22), during rapidity opening of the consecutive roll of being controlled with the mode can the roll nip (N₁ - N₉), open in sequence of desire. Furthermore, this invention regards also the liquid pressure type device of the consecutive roll.