Double-draft wire drawing and collection machine with tension-sensitive speed control
US6216506A · kind A · utility
2Cited by
4References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 5, 1999 |
| Grant date | Apr 17, 2001 |
| Priority date | — |
| Expiry date | Oct 5, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21C1/12
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A double-draft continuous wire drawing and collection machine having first and second reduction dies for drawing wire in succession. A rotary advancing block driven by a variable-speed first motor draws wire rod through the first reduction die, and a rotary flyer mechanism driven by a second motor draws wire through the second reduction die as it coils wire on a stationary block. A tension control arm and rheostat regulate the speed of the first motor based on wire tension differentials detected between the rotary advancing block and the second reduction die, in order to maintain constant wire tension in that wire segment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.