(57) A rewinding machine for rewinding and forming a paper roll comprising three rollers
(16,17,18) with axis parallel to each other and perpendicular to the direction of
forward movement of the paper, wherein the two upper and lower winding rollers (16,17)
cooperate with a third roller (18), adapted to keep a given pressure on a roll, or
log, to form a finished roll by winding of the paper, which passes on the upper winding
roller (16), around a core (12), an introduction group (13) of the cores (12) one
after the other into a channel (24) provided beneath the upper roller (16), and a
paper stop group (120) which cooperates with at least one first surface portion (16',16")
of the upper roller (16) rotating around a pin (128), wherein the stop group (120)
comprises at least one paper stop element (120',120") provided with an arm (132',132")
rotating around the pin (128) and with a free end made up of a smooth surface (133',133"),
and in which the at least one first surface portion (16',16") of the upper roller
(16) is smooth and provided with a plurality of air suctioning holes (101).
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