Process and apparatus for maintaining a constant material web speed during winding operations
US4166590A · kind A · utility
5Cited by
4References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 2, 1978 |
| Grant date | Sep 4, 1979 |
| Priority date | — |
| Expiry date | Feb 2, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H23/005
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Disclosed is a process and an apparatus for use therewith for maintaining a constant material web speed during winding of the material onto a driven roll. The process comprises adjusting the speed of the drive motor of the roll to be linearly proportioned to its control voltage; and, as the diameter of the roll increases due to the winding of material thereon, reducing the speed of the drive motor in accordance with a hyperbolic curve relating motor speed to the diameter of the roll characteristic of the winding operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.