Arm for an unwinder and unwinder comprising said arm
AssigneeFosber S.p.A.
InventorMauro Adami
Life of this patent
Estimating the term…
Abstract
An arm for an unwinder for unwinding rolls is disclosed. The arm includes an axial engaging member for engaging the rolls. The axial engaging member has a shaft supported by at least two support bearings mounted on the arm, so as to rotate around a rotation axis. A brake is also provided, adapted to act on the shaft. The brake is at least partially arranged between the two support bearings.
Claims25
An arm for an unwinder for unwinding rolls, comprising:
- an axial engaging member, for engaging the unwinding rolls, having a shaft supported by at least two support bearings mounted on the arm, so as to rotate around a rotation axis;
- and
- a brake adapted to act on the shaft;
- wherein the brake is at least partially arranged between the at least two support bearings;
- and
- wherein the brake comprises:
- at least one rotating ring, rotatingly coupled to the shaft and rotating therewith;
- at least one braking disc coaxial with the shaft, wherein the at least one rotating ring and the at least one braking disc are movable with respect to each other in a direction parallel to the rotation axis of the shaft;
- and a brake actuator adapted to press said at least one rotating ring and said at least one braking disc against each other;
- wherein said at least one braking disc and said at least one rotating ring are arranged between the at least two support bearings.
An unwinder for unwinding rolls of web material, comprising a bearing structure and at least one pair of arms supported movable with respect to the bearing structure;
- wherein each arm of said at least one pair of arms comprises:
- an axial engaging member, for engaging the unwinding rolls, having a shaft supported by at least two support bearings mounted on the arm, so as to rotate around a rotation axis;
- and
- a brake adapted to act on the shaft;
- wherein the brake is at least partially arranged between the at least two support bearings;
- wherein the brake comprises:
- at least one rotating ring, rotatingly coupled to the shaft and rotating therewith;
- at least one braking disc coaxial with the shaft, wherein the at least one rotating ring and the at least one braking disc are movable with respect to each other in a direction parallel to the rotation axis of the shaft;
- and a brake actuator adapted to press said at least one rotating ring and said at least one braking disc against each other;
- and
- wherein said at least one braking disc and said at least one rotating ring are arranged between the at least two support bearings.
An unwinder for unwinding rolls of web material, comprising a bearing structure and at least one pair of arms supported movable with respect to the bearing structure;
- wherein each arm of the at least one pair of arms comprises
- an axial engaging member, for engaging the unwinding rolls, having a shaft supported by at least two support bearings mounted on the arm, so as to rotate around a rotation axis;
- a first side wall and a second side wall transverse to the axial engaging member, the first side wall and the second side wall defining a housing through which the shaft extends;
- of said at least two support bearings, a first support bearing is arranged at said first side wall and a second support bearing is arranged at said second side wall;
- a brake adapted to act on the shaft, wherein the brake is arranged in the housing between the first support bearing and the second support bearing and between the first side wall and the second side wall.
Dependencies are inferred from the claim text.