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A method and apparatus for reel-up of a paper web, wherein a roll is formed around a reeling drum or in another embodiment of the invention on the support of carrier rolls or carrier belts, and wherein a reeling cylinder is used to form a reeling nip for contacting the roll which is to be produced d

A method and apparatus for reel-up of a paper web, wherein a roll is formed around a reeling drum or in another embodiment of the invention on the support of carrier rolls or carrier belts, and wherein a reeling cylinder is used to form a reeling nip for contacting the roll which is to be produced during passage of the paper web through the reel-up apparatus, includes a center axis and a cylinder mantle mounted for revolution around the axle comprised by the reeling cylinder. A method and apparatus for reel-up of a paper-web includes hydraulic loading elements for adjusting deflection of the cylinder mantle such that distribution of line pressure in the reeling nip, in its axial direction is controlled, e.g. maintained to be substantially uniform.

대표청구항 ▼

A method of operating a reel-up apparatus for reel-up of a paper web wherein said web is formed as a roll comprising a plurality of layers of said web around a reeling drum and wherein the web passes through a reeling nip formed between a reeling cylinder and said drum, and wherein said reeling cyli

A method of operating a reel-up apparatus for reel-up of a paper web wherein said web is formed as a roll comprising a plurality of layers of said web around a reeling drum and wherein the web passes through a reeling nip formed between a reeling cylinder and said drum, and wherein said reeling cylinder further comprises a cylinder mantle which revolves around a central axle of said cylinder, said method comprising the step of adjusting deflection of the cylinder mantle during its revolution so that distribution of line pressure in the reeling nip is controlled in an axial direction, wherein at the initial stage of reel-up the reeling drum is relieved of its own weight at both its ends by means of particularly directed forces, comprising the following steps: rotating a plurality of loading members away from the reeling nip, positioned at the top of said cylinder, 180°, thus compensating for free deflection of the cylinder mantle resulting in substantially uniform line pressure in the reeling nip; moving the reeling nip downwardly along the circumference of the reeling cylinder toward its horizontal center plane while, at the same time, the loading members are rotated upwardly toward said plane reducing the distance between said loading members and said reeling nip, whereupon the reeling drum is shifted onto secondary ford means comprised by the reel-up apparatus; loading the reeling drum at both its ends, at which said axle journals are located, with particularly directed adjustable forces applied by said forks, such that the loading members and the reeling cylinders are in face to face contact, whereby pressure is directed inwardly toward the loading members resulting in uniform line pressure at the reeling nip.