Metso Paper Inc.

Tuomo Kurkela

Juha Isomets&auml;

Jorma Snellman

Mauri Rukaj&auml;rvi

Pekka Kivioja

Esa Vilmusenaho

Antti Pramila

A roll has a continuous tubular roll shell ( ) of a composite material and axle journals ( ) rotating together with the roll shell and joined to each end of the roll shell. The axle journals are supported on a supporting element ( ) surrounding the axle journal ( ) by at least two bearing elements ( ) located at a distance from each other in the axial direction (X&mdash;X) of the roll, which supporting element ( ) for its part is supported on the machine frame structures (R). The first bearing element ( ) is supported on the supporting element ( ) through a bending mechanism ( ), which is used for applying to the first bearing element ( ) a force affecting in a radial direction in order to deflect the first bearing element ( ) in relation to the central axis (X&mdash;X) of the unbent roll, whereby the axle journal ( ) will bend in relation to a pivot point which is formed at the second bearing element ( ) and a bending moment is applied to the roll shell ( ).

Roll that can be bent with a composite shell

A composite-construction roll, includes a roll frame reinforced with reinforcing fibers, and a method for manufacturing such a roll. There is at least one optical fibre among the reinforcing fibers and the roll includes terminals arranged in this optical fibre for a transmitter and a receiver for measuring a selected optical quantity from the fibre.

Composite-construction roll and a method for manufacturing it

A roll that can be bent for a web-like material, which roll comprises a continuous tubular roll mantle ( ) of composite material as well as axle journals ( ) connected to each end of the roll mantle ( ). The axle journals ( ) are attached by means of at least one mechanism ( ), by whose means the axle journals ( ) and thereby the roll mantle ( ) are bent into an arc form, and a regulation device ( ) by whose means the angular position of the roll arc can be regulated.

Growing community of inventors

Haukipudas, Finland

Tuomo Kurkela