Wrapping machine for coin stacks - uses toothed belt with tensioning roller, and toothed drive rollers

摘要

The wrapping machine is for cylindrical objects, e.g. stacks of esp. coins. It holds and turns the stack for wrapping and edging. It uses a flexible wide toothed retaining belt tensioned by an idling roller. At high speed, the belt is driven by synchronised toothed rollers. Each roller incorporates retaining elements of the belt, to maintain connection to it, when the belt section surrounding the coin stack is loosened to release the wrapped stack. The belt section between the rollers may be adjusted, manually or as a machine function, to adjust its length, acc. to the diameter of the stack.