Pressing roller for the processing of web paper material
OwnerGuglielmo Biagiottiinventor
Life of this patent
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Abstract
A pressing roller (10) for the processing of web paper material, in particular of the type used in cooperation with an engraving roller (G1) for the bonding of two or more embossed plies of web paper material, comprises a cylindrical pressure surface (11) defined by a plurality of annular resilient pressure bodies (15) of rubber material that have a high surface hardness which allows to avoid the effect of “double embossing” and at the same time have a high elastic yielding which allows to obtain adequate nip also with relatively low contact pressures.
Claims7
A pressing roller for the processing of web paper material of the type used in cooperation with an engraving roller for bonding two or more embossed plies of web paper material, comprising:
- a cylindrical pressure surface made of rubber material associated externally in rotatably fixed mode to a cylindrical body mounted to rotate about its axis;
- wherein the cylindrical pressure surface is defined by an outer surface of a plurality of annular resilient pressure elements arranged one next to the other in an axial direction;
- wherein each of the annular resilient pressure elements being constituted by an annular body of rubber material comprising an external pressure ring whose outer surface defines an axial portion of the cylindrical pressure surface, an inner ring mounted on a cylindrical body, and a plurality of connecting arms arranged and dimensioned for elastically connecting the inner ring with the external pressure ring.
Dependencies are inferred from the claim text.