Apparatus for controlled braking of a driven yarn engaging roll
US4916783A · kind A · utility
7Cited by
5References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 13, 1988 |
| Grant date | Apr 17, 1990 |
| Priority date | — |
| Expiry date | Oct 13, 2008 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD02H13/12
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
In a textile draw warping system having independently driven sets of draw rolls and an independently driven warp beam, synchronous braking of the driven components is controlled by individual pneumatic brakes at each driven component operated by a central programmable logic control system to brake the driven components at respective rates of deceleration preset to maintain constant speed ratios between the driven components during braking. Auxiliary control of dynamic braking and driving of the several drive motors corrects deviations in the driven components' predetermined rates of deceleration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.