Method and apparatus for decoiling sheet material
US4158301A · kind A · utility
Inventor
Key dates
| Filing date | Sep 26, 1977 |
| Grant date | Jun 19, 1979 |
| Priority date | — |
| Expiry date | Sep 26, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H23/34
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for removing the coil set from a coiled roll of sheet metal material or the like, and which comprises a pair of cooperating rolls defining a nip through which the sheet metal is advanced, and a deflecting roll positioned immediately downstream of the nip to flex the advancing sheet material beyond its yield point and remove the coil set therefrom. Upon stopping of the advance to permit the cutting or other processing of the sheet material, the deflecting roll is automatically withdrawn from contact with the sheet material to thereby prevent the formation of a crease in the material, and upon restarting of the advance, the sheet material is initially reversely advanced a short distance to insure that any portion of the sheet material which has not been flexed to remove the coil set will be positioned upstream of the nip before the forward advance is commenced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.