Web handling method and apparatus with pre-acceleration of web f

Details Web handling method and apparatus with pre-acceleration of web f Web handling method and apparatus with pre-acceleration of web f

1992-01-27

1993-03-02

Jillions, John M.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

242 584, 156502, 156504, 156157, B65H 1914

Patent

active

051902346

ABSTRACT:
In a web handling apparatus for continuously supplying a running web to a web-consuming machine using a main accumulator to provide uninterrupted feed of the web during splicing of the trailing end of an expiring roll to the leading end of a ready roll, an improved ready-roll acceleration technique uses a supplemental accumulator disposed between the ready roll and the splicing head to enable the ready roll to be accelerated prior to completion of the splice. This technique permits the use of a smaller main accumulator and/or increased running speeds. In fact, the total storage capacity of the main and supplemental accumulators can be less than that of the single accumulator of conventional apparatus of this type. Furthermore, the running roll can be slowed without adverse consequence so as to reduce web tension upsets. The invention is also useful in web winder/splicer applications.

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