Winding apparatus for textile threads
US4049211A · kind A · utility
17Cited by
4References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 2, 1976 |
| Grant date | Sep 20, 1977 |
| Priority date | — |
| Expiry date | Nov 2, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2701/31
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The speed of the friction drive drum is electronically controlled as a function of the thread speed. The apparatus allows winding of a precision wound package or a random wound package. The apparatus employs an electronic control unit which calculates a desired value signal for the speed of the drive drum as a function of the thread speed from a mathematical formula and compares this value to the actual value in order to obtain a correction signal for the drive of the drive drum. A similar calculation is also made for controlling the speed of the traversing thread guide shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.