Valmet Corporation

Risto Forsstr&ouml;m

Raimo Ruohio

Eero Mielonen

Pertti Ojala

Method of and apparatus for threading of a wrapper end ( ) from a wrapper roll ( ) to a nip between wrapper proportioning drawing rolls ( ) in a wrapping station for wrapping paper rolls, board rolls and pulp rolls, in which the prepared wrapped roll ( ) is rotated in a use station in the direction opposite to the wrapper feeding direction in such way that the wrapper end ( ) falls on a wrapper feeding table ( ). The wrapper end ( ) that has fallen on the wrapper feeding table ( ) is indicated and the rotating motion or the wrapper roll is stopped when the wrapper end ( ) has been detected. Now the roll ( ) is rotated in the wrapper feeding direction, until the wrapper end ( ) passes an indicator placed after the drawings rolls.

Method of and apparatus for threading of a wrapper web into a nip between drawing rolls in a wrapping device

A method and apparatus for wrapping paper and board rolls in a wrapper, in which method the roll ( ) to be wrapped is conveyed to a wrapping station, is placed on support means and is rotated resting on said support means. The wrapper ( ) is threaded about the roll ( ) to be wrapped so as to form at least two wrapper plies and the wrapper plies are bonded to each other at least partially with the help of a binder. The rolls to be wrapped are wrapped into at least two parallel and overlapped courses of wrapper using a wrapper web material whose surface is coated with a hot-melting and heat-sealable material that is melted prior to the wrapping of the wrapper about the roll in order to bind the superimposed plies of the wrapper to each other and to seal the joints of said overlapped courses of wrapper.

Growing community of inventors

Lahti, Finland

Risto Forsström

Growing community of inventors

Lahti, Finland

Risto Forsstr&ouml;m

Risto Forsström