Compliant roller for a web winding machine
AssigneeBeloit Technologies, Inc.
InventorGerhard W. Dorfel
Life of this patent
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Abstract
A roller (10) used as support, backing or driven roller in winding devices, such as winders for winding wound rolls of paper coming from a papermaking machine, is composed of an outer cylindrical roller element (24), on which an elastic, flexible intermediate layer (26) of elastomeric material is applied. On the intermediate layer (26), an external roller mantle (33) of thin-wall spring steel is provided that can be deformed in a plane perpendicular to the axis due to the contact pressure of the roll (2) and can be pressed against the outer perimeter of the roll (2). A broad contact region is created, which leads to a lower specific nip pressure and to a lower roll hardness. Channels (27, 28) in the intermediate layer (26) serve to increase the flexibility and cooling.
Claims9
Apparatus for winding a roll from a traveling paper web, the apparatus including at least one roller for supporting, backing or driving the paper roll being wound, the roller comprising:
- a body having a cylindrical outer surface and a longitudinal axis of rotation;
- a hollow, flexible, cylindrical mantle disposed about the body coaxially therewith;
- a cylindrical, hollow, radially elastically deformable intermediate layer positioned about the body and extending continuously therewith, enclosed by, and supporting, the mantle thereabout;
- a plurality of circumferentially extending, closely spaced channel walls defining channels are formed in the intermediate layer, the channel walls extending outwardly and bearing against the inner circumferential surface of the mantle such that the channels are open to the inner circumferential surface of the mantle.
Apparatus for winding a wound roll from a traveling paper web, the apparatus including at least one roller for supporting, backing or driving the paper roll being wound, the roller comprising:
- a body having a cylindrical outer surface and a longitudinal axis of rotation;
- a hollow, flexible, cylindrical mantle disposed about the body coaxially therewith, said mantle comprising a steel cylinder having a thickness of between about 1 mm to about 5 mm such as to be elastically deformable in the radial direction of the roller;
- a cylindrical, hollow, radially elastically deformable intermediate layer positioned about the body and extending continuously therewith, enclosed by, and supporting, the mantle thereabout, the intermediate layer comprising a compact elastomeric material having a Shore "A" hardness of between about 30 to about 80;
- a plurality of circumferentially extending, closely spaced channel walls defining channels are formed in the intermediate layer, the channel walls extending outwardly and bearing against the inner circumferential surface of the mantle such that the channels are open to the inner circumferential surface of the mantle.
Apparatus for winding a roll from a traveling paper web, the apparatus including at least one roller for supporting, backing or driving the paper roll being wound, the roller comprising:
- a body having a cylindrical outer surface and a longitudinal axis of rotation;
- a hollow, flexible, cylindrical mantle disposed about the body coaxially therewith, said mantle comprising a steel cylinder having a thickness of between about 1 mm to about 5 mm such as to be elastically deformable in the radially direction of the roller;
- a cylindrical, hollow, radially elastically deformable intermediate layer positioned about the body and extending continuously therewith, enclosed by, and supporting, the mantle thereabout, the intermediate layer having a radial thickness of between about 10 mm to about 100 mm and comprising a compact, elastomeric material having a Shore "A" hardness of from about 30 to about 80.
Dependencies are inferred from the claim text.