Roll for devices for the treatment of ribbon-shaped paper material and related device

摘要

In one embodiment, a roll for devices for the treatment of ribbon-shaped paper material includes a central shaft, on which a coaxial tubular jacket is fitted, among which two oscillating and non-rotating connection organs are positioned, the central shaft of the roll having, at opposite ends, oscillating bearings housed in a supporting structure, wherein the central shaft and jacket are both rotating and are also made torsionally integral by means of at least one flexible organ capable of transmitting a torque. In another embodiment, a device for the treatment of ribbon-like paper material includes with a pair of rolls opposed as specified above, wherein a first roll has a tubular steel jacket and a second roll has a tubular rubber jacket.

主权项

1. A roll for devices for treatment of ribbon-shaped paper material comprising:
a central shaft on which a coaxial tubular jacket is fitted; and two oscillating and non-rotating connection organs positioned between said central shaft and said jacket, the central shaft of the roll comprising, at opposite ends, oscillating bearings housed in a supporting structure, wherein said central shaft and jacket are both rotating and made torsionally integral by a flexible organ configured to transmit a torque, and wherein said flexible organ comprises a first toothed pulley coupled on said central shaft and a second toothed pulley integral with said tubular jacket both interacting inside a toothed belt positioned coaxially with respect to the shaft and to the first and the second toothed pulley.