ENVELOPER ASSEMBLY FOR WINDING WEBS

摘要

In a winding assembly (630) for winding web rolls (830), an enveloper assembly is used to initiate winding of a web stream onto a pre- formed core (820) or to initiate winding of a core- forming substrate into an in-line core. The enveloper assembly comprises a first support arm (870) operatively coupled to a second support arm (872); a third support arm (874) operatively coupled to the second support arm; and an enveloper roller (846) operatively coupled to the third support arm. The enveloper roller is movable along a cylindrical surface from a first position (889 ) to a second position. The enveloper assembly accommodates a wide range of core diameters. For winding non-adhesive web streams, a tail tucker can be used in conjunction with the enveloper assembly to initiate winding. In conjunction with apparatus for inserting core-forming substrates or adhesive tabs onto a web, the winding assembly can perform high-volume, streaming production of wound web rolls.