Raute Oyj

Antti Pennanen

Jussi Puranen

Seppo Vartiainen

Matti Poikela

Ilpo Lyytikäinen

Mikko Vesterinen

Timo Kuivasto

Jussi Auvinen

Timo Nietosvuori

The veneer lathe comprises rotatable spindles for engaging the ends of a block, a centering device for measuring dimensions of the block for determining optimal centering of the block, the centering device comprising centering spindles for engaging each end of the block, transfer arms moveable in the axial direction of the spindles for engaging the ends of the block and in a direction that is perpendicular to the axial direction for transferring the block from the centering device to a peeling position, a knife assembly comprising a knife and a nose bar, which is in the form of a rotatable roll, and a support device comprising a lower roll and an upper roll at a distance from the lower roll for supporting the block during peeling.

Veneer lathe and method of producing veneer

The invention concerns a method for peeling veneer from a log (). Veneer () is peeled tangentially from the circumferential surface of a log rotated around its longitudinal axis under conditions determined by the distance (knife gap) between the knife () and the nose bar pressing the surface of the log immediately in front of the cutting point. The peeling knife as well as the nose bar is moved towards the rotation axis of the log corresponding the proceeding of the peeling. At the ending stage of the peeling, the distance between the peeling knife and the nose bar is reduced substantially in accordance with the thickness of the veneer being peeled.

Method for cutting veneer from logs

Growing community of inventors

Lahti, Finland

Antti Pennanen