| 摘要 |
An apparatus for wrapping different sizes of paper rolls or rolls of like material into a wrapper by rotating the rolls. The apparatus comprises a support frame encompassing the roll, means for conveying the wrapper on the roll, and at least one flexible guide band which is devised to press on the outer surface of the roll and to comply with the rotating of the roll. In the apparatus according to the invention, the guide band is configured into an endless conveyor with an at least approximately U-shaped form, within which the roll to be wrapped is inserted. An inner loop of the conveyor is configured to pass over four guide rollers mounted on two first lever arms and two second lever arms are capable of being transferred against the outer surface of the roll to be wrapped. Then, the guide band, which passes over the guide rollers, during the wrapping phase touches the surface of the roll to be wrapped at each point within the three circumferential segments between the guide rollers on the outer surface of the roll to be wrapped.
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