Method and apparatus for separating off individual items from a stack of precut strips
US4790223A · kind A · utility
Inventor
Key dates
| Filing date | Apr 17, 1987 |
| Grant date | Dec 13, 1988 |
| Priority date | — |
| Expiry date | Apr 17, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/9452
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
For separating off a stack of individual shaped items such as bottle neck labels from a stack of strips each carrying several such items, a punching die is used which has a punching contour which corresponds to the desired shape of the cutting line between the individual shaped items. The cutting line also corresponds to the rear contour of the separate stack of individual shaped items. The shape of the cutting line of the punching die is freely selectable. At its rear edge the punching die is smooth and the separated-off stack of shaped items accommodates any compression of the material forming the stack by means of an offset angle so that the remainder of the strip of shaped items has a smooth and perpendicular cut edge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.