Patent ID: 7204448

Claim:
A device for producing coreless film rolls, comprising: a winding mandrel onto which a film sheet is adapted to be wound for producing a coreless film roll, a transport arrangement comprising a rotatable member configured to be rotatable about an essentially vertical axis and configure to support the winding mandrel in a manner wherein an axis of the mandrel is essentially parallel to the essentially vertical axis about which the rotatable member is rotatable; wherein the winding mandrel comprises a plurality of displaceable holding elements arranged in a longitudinal direction of the winding mandrel, the holding elements being operative for changing outer dimensions of the winding mandrel and having surfaces which are configured to directly engage the film sheet when it is wound onto the winding mandrel and to be retracted away and out of engagement with the coreless film roll when winding of the coreless film roll is to be separated from winding mandrel, and a delivery station for separating the coreless wound-up film roll from the winding mandrel, the delivery station comprising a displacement device for displacing the coreless wound up film roll with respect to the mandrel when the mandrel assumes a delivery position so that the coreless wound up film roll is collected on a transport belt which has an essentially horizontal surface.