Process and device for selecting a single stacked flat object from a stack and use in packaging of cigarettes

US6145829A · kind A · utility

Assignee

• Philp Morris Incorporated · US

Inventors

• Horst Furmanski · Berlin, DE
• Ehrhard Gehrke · Berlin, DE
• Kamal Maheronnaghch · Berlin, DE

Key dates

• Filing date: Sep 12, 1997
• Grant date: Nov 14, 2000
• Expiry date: Sep 12, 2017

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65H2515/34
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

A process for selecting a single stacked flat object from a stack of flat objects. The lowermost flat object is downwardly detached from the rest of the stack of flat objects by negative pressure on at least one of its edge areas) running parallel to the take-off direction. In at least one suction area, the flat object is held by negative pressure onto a conveyor that can move back and forth. The flat object is advanced underneath a scraper and then further conveyed. The device for carrying out this process has a hopper for the stack of flat objects, a scraper, at least one suction device to partially detach the lowermost flat object, a conveyor, and a take-off device.