Device for storing and unwinding rolls of material in bookbinding machines
AssigneeKolbus GmbH & Co. KG
InventorsGerhard Lintelmann, Günter Geldmeier
Life of this patent
Estimating the term…
Abstract
A device for storing and unrolling materials in web form in bookbinding machines having a roll-changing device for connecting a material which is to be unwound from a roll to the end of a material of the same kind unwound from another roll. The two rolls of material are placed, resting on their superficies, in an almost perpendicular shaft and are supported and guided on side walls of the shaft via their end faces. The roll of material to be stored rests on a stationary, almost horizontal floor. The unwinding roll of material rests on movable supporting elements which are set in motion, during the unrolling of the roll of material, when the latter is supported against supporting rollers forming one end face of the shaft.
Claims12
Device for storing and unrolling materials in web form in a bookbinding machine having apparatus for performing a roll-changing operation where a material which has been unwound from a supply roll is connected to the end of a material which is to be unwound from a subsequent roll, each of the rolls having oppositely disposed end faces, the device comprising:
- a shaft having a pair of sidewalls and front and rear portions, the sidewalls extending longitudinally in an unwinding direction and being adapted for guiding and supporting the supply and subsequent rolls of material via the end faces;
- a stationary, substantially horizontal floor disposed in the rear portion of the shaft adapted for supporting the subsequent roll until the subsequent roll of material is exchanged for the supply roll of material;
- at least one movable supporting element adapted for supporting the supply roll of material during an unrolling operation, the supporting element defining a front shaft floor;
- and
- at least one supporting roller adapted for supporting the supply roll of material on the movable supporting element during an unrolling operation, the supporting roller forming an end face of the shaft.
Dependencies are inferred from the claim text.