Heating of calender roll surfaces
US6571692B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 9, 2001 |
| Grant date | Jun 3, 2003 |
| Priority date | — |
| Expiry date | May 9, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C43/305
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for rapid heating of calender rolls 350, 352 for a calendering apparatus 200 is disclosed. At a heating area 800, the rolls 350, 352 are preheated, reheated, or maintained at any temperature prior to the rolls 350, 352 being placed into the calendering apparatus 300. The preferred method of heating is by induction heating. The rolls 350, 352 may be delivered to the heating apparatus 802 from an initial storage area 420 or the calendering apparatus 300. The rolls 350, 352 are transported by an overhead transfer mechanism 400. The disclosed method and apparatus greatly facilitate formation of multi-layered laminates and is particularly useful in the tire building art.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.