Methods and apparatus for filling and exchanging flat cans

There are various methods and devices presented to a flying change during filling and exchanging fiber band cans (11, 12, 12a, 12b, 13) with rectangular cross section (flat cans) on a spinning machine, in particular a carding or drafting (1) to realize. In a first aspect of the invention is proposed for this purpose, during the filling of a first can (11), the can bottom is thereby lowered by means of external lifting means, the can bottom of a second, subsequent to the first can (11) to be filled can (12a) at least partially to raise. In a further aspect of the invention the use of a platform (21) is proposed, which is at least two (11, 12a) receives cans and for filling one of these cans oscillates in Can longitudinal direction.