Device for separating blanks from a sheet of cut blanks
US5810233A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 2, 1996 |
| Grant date | Sep 22, 1998 |
| Priority date | — |
| Expiry date | Aug 2, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T225/386
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A device for removing blanks which have been cut into a sheet of paper or cardboard and are separated from each other by intermediate strips and are surrounded by a crosswise frontal and a crosswise back strip and two lengthwise side strips. The device includes a lower tool having a grid having apertures corresponding to the size and shape of each of the blanks with bars for supporting the intermediate strips, the lengthwise side strips and front and back crosswise strips, and an upper tool having pushing elements of a shape similar to the blank for pushing the blanks through the apertures of the lower tool and also having pressing devices for holding the intermediate and side strips against the respective bars of the lower tool during the step of separating. To prevent the catching of the strips on the lower tool during a subsequent removal of the residual sheet, a portion of the longitudinally extending pressing devices is provided with suction ports to cause a lifting of the portion of the residual sheet as the upper tool is moved upward subsequent to the separation of blanks from the residual sheet and during the step of removing the residual sheet from the device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.