Positive-drive spiral conveyor with overlapping cage-bar caps

摘要

Overlapping cage-bar caps in a spiral belt conveyor. The cage bars of a spiral-conveyor cage are covered along the majority of their length by a main cage-bar cap fastened to the cage bar at the exit of the belt from the spiral. At the belt's entrance to the spiral, an entrance cage-bar cap overlaps a portion of the main cage-bar cap and the cage bar. The overlap is great enough to prevent a gap from forming along the length of the cage bar between the main cage-bar cap and the entrance cage-bar cap.

主权项

1. A spiral conveyor comprising:
a cylindrical drive cage extending from a bottom to a top and having a plurality of parallel cage bars extending in length from the bottom to the top of the drive cage forming a periphery radially outward of an axis of rotation of the drive cage; a plurality of main cage-bar caps covering a major portion of the lengths of the cage bars, a plurality of entrance cage-bar caps overlapping a portion of the main cage-bar caps radially outward of the main cage-bar caps and disposed at the bottom or the top of the drive cage.