Differential winding rate core winding apparatus
US6267318A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 30, 1999 |
| Grant date | Jul 31, 2001 |
| Priority date | — |
| Expiry date | Aug 30, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2405/45
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A plurality of core mounting ring members are rotationally slidably mounted on a drive shaft which has a central axial bore for receiving settable pressurized air. The ring members have an annular array of bores with core gripping buttons resiliently urged radially outwardly to grip a core receiving a winding strip thereabout. A central groove on an inner surface of each of the ring member is fluid coupled to the gripping button bores and to the drive shaft central bore for urging the buttons outwardly with pressurized air. The button bores are fluid coupled to two annular grooves on each side of the central ring member groove. A chlorinated quad O-ring is in each of the two annular grooves. Regulated pressurized air from the central groove flows through the button bores into the O-ring grooves urging the O-rings radially inwardly to both fluid seal the central groove and to provide a settable friction engagement with the drive shaft to settably control the speed and torque of the mounting ring members to provide a more uniform tension on the strips being wound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.