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US 2015/0307315 A1Published application
Flexible winding mandrel with core segments for producing rolls of wound paper
OwnerMichael E. Techlin, Stefano Spinelliinventors
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OwnerMichael E. Techlin, Stefano Spinelliinventors
Estimating the term…
A flexible mandrel is provided for holding cores or core segments so that a roll of sheet material can be wound on the core segments in a winding machine. The mandrel and core segments are coupled through elastic interference between the mandrel and the core segments so that the core segments are arranged either adjacent to each other or spaced apart. A method for producing rolls of sheet material on the novel combination of mandrel and core segments feeds cores in an apparatus, transversely cuts the cores to form portions of core or core segments, feeds a flexible mandrel into the core segments for supporting and maintaining the axial position of the core segments. Coupling is by elastic interference between the flexible mandrel and the core segments to form an assembly in which the core segments are arranged on the mandrel spaced apart or adjacent one to the other.
A combination of an elongated flexible and elastic mandrel and a plurality of tubular core segments for use in a winding machine for winding a roll of sheet material over the core segments, said mandrel having an outer surface, said core segments being retained on the outer surface of the mandrel by elastic interference between the mandrel and the core segments.
A method for the production of rolls of sheet material with split cores on a flexible mandrel in a winding machine comprising the steps of:
An apparatus for the production of rolls of sheet material with split cores on a flexible mandrel in a winding machine, comprising:
Dependencies are inferred from the claim text.