Method of feeding flat mail for separation by suction of material input
US6123330A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 2, 1998 |
| Grant date | Sep 26, 2000 |
| Priority date | — |
| Expiry date | Jun 2, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2701/1916
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The invention relates to a method for the steady feeding of flat items for separation by suction of material input into a distribution unit by using a feeding device, preferably comprising a separating blade and a conveyor belt underneath it. In accordance with the invention, the thickness of the pulled-off items is measured within a main control circuit (HR). The feeding device conveys the item stack (SS) by the amount of this thickness in the direction of the suction separation system. In a static correction control circuit (KR), the stack pressure is measured outside of the suction separation system and is adjusted via the movement of the feeding device within the limits of the permissible stack pressure range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.