Metso Paper Inc.

Ilkka Naatti

Teppo Kojo

Petteri Lannes

Tatu Pitkänen

Topi Tynkkynen

Marko Tiilikainen

Matti Kemppainen

Rami Vanninen

Risto Mäkinen

Jari Tiitta

Vesa Riihelä

A method and an apparatus for controlling the cross-directional nip profile of a reeling nip in a reeler, in which the reeling nip is arranged by means of a reeling core or a growing machine reel and at least one loop of an endless supporting member continuous in the direction of the axis of the reeling core. To control the cross-directional nip profile of the reeling nip, variables proportional to the tension of the supporting member are measured, cross-directional tension profile of the supporting member is determined on the basis of said variables, and further, a cross-directional nip profile of the reeling nip is determined, said nip profile being controlled by adjusting the determined cross-directional tension profile of the supporting member.

Method and an apparatus for controlling a nip profile of a reeling nip

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Helsinki, Finland

Ilkka Naatti