| 摘要 |
A device that rotates the cup-shaped container while the container is conveyed along a conveyer system to enhance properly fitting of a plastic film over the container is provided. The device includes an elongate chassis on which two parallel conveyer belts are movably supported for conveying the container in the longitudinal direction. At least a portion of each belt is inclined toward each other by arranging a transversely movable member under an outer edge of each belt whereby by selectively setting the transverse position of the member, the inclination of the belt is adjusted. Due to the inclination, the container that is positioned on the conveyer belts is in tangential engagement with the belts by an outer rim thereof. The belts are driven in different speeds, and this induces different linear speeds on the portions of the outer rim that engage the belts thereby causing rotation of the container about a center axis thereof. The rotation of the container enhances proper positioning of the plastic film loosely fitting over the container before the film is heated to shrink over the container. |
