Web auto-splicer
US5223069A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Dec 5, 1991 |
| Grant date | Jun 29, 1993 |
| Priority date | — |
| Expiry date | Dec 5, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2513/20
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
With the splicing get started, braking becomes strong and the old core decelerates, when the capstan roll comes to be free run. The speed reference to the second motor is a summed-up speed of "line speed minus capstan speed" and compensated portion of the tension. At once when the old core starts deceleration, the accumulation roll unit starts moving. The capstan roll is accelerated at a certain rate, when the new core is drawn out, up until the speed reaches "line speed plus overrun speed". When the accumulation roll unit reaches the synchronous position, the overrun becomes "0" and the capstan roll synchronizes with the line speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.