Patent ID: 11891263
Assignee: VALMET TISSUE CONVERTING S.R.L.
Field: Handling (Mechanical engineering)
Classification: CPC B | IPC B

Claim 20:
21. The interfolding machine according to claim 1, wherein said second holding elements of said cutting roller are arranged to hold said sheets on said portion of said external surface of said cutting roller only at predetermined angular positions of said cutting roller during the rotation of the same about its rotation axis, in such a way that:
when said cutting roller is positioned at said predetermined angular positions, said second holding elements are arranged to hold said sheets on said second portion in order to feed a sheet of said plurality from said cutting roller to said transfer roller, whilst,
when said cutting roller is not arranged at said predetermined angular positions, said second holding elements are not arranged to hold said sheets on said second portion, and therefore a sheet is transferred from said cutting roller to said first folding roller.