Web handling method and apparatus with pre-acceleration of web feed rolls
US5190234A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 27, 1992 |
| Grant date | Mar 2, 1993 |
| Priority date | — |
| Expiry date | Jan 27, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2408/2171
- WIPO fieldHandling
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.