Arrangement for separating sheets of paper and the like

US3976291A · kind A · utility

Assignee

• GAO Gesellschaft für Automation und organisation mbH · DE

Inventors

• Herbert Bernardi · Arget, DE
• Erhard Lehle · Mühlheim am Main, DE
• Joseph Geier
• Gerd von Aschwege · Munich, DE
• Markus Haberstroh · Landsberg, DE

Key dates

• Filing date: Nov 18, 1974
• Grant date: Aug 24, 1976
• Expiry date: Nov 18, 1994

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65H2701/1912
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

In the arrangement, a batch or stack of vertically oriented recording media sheets is supported on edge on a horizontal vibrating table which is vibrated by a vibrating conveyor and the sheets are advanced singly, starting with the leading or frontmost sheet, through a separating slot between a pair of endless belts constituting a transporting arrangement. A first rotating suction drum is mounted at the rear end of the vibrating table and is formed with circumferentially spaced suction bores for operative relation with a rotary slide valve to connect the suction bores intermittently to a suction system. A second rotating suction drum is arranged within the range of the separating slot and serves as a separating drum, and a hold-back suction drum is also arranged within the range of the separating slot and serves as a hold-back device, the hold-back suction drum having the same design as the first rotating suction drum. The second rotating suction drum is also operatively associated with a rotary slide valve and has a single series of slots aligned in an axial plane and intermittently connected to a suction system by the associated rotary slide valve.