Method and device for guiding a sheet with a pneumatic sheet flo

Details Method and device for guiding a sheet with a pneumatic sheet flo Method and device for guiding a sheet with a pneumatic sheet flo

Filed on

1995-09-21

Date issued

1997-09-23

Examiner

Milef, Boris

Patent Class

Sheet feeding or delivering

SubClass

Delivering

SubSubClass

With transfer means between conveyor and receiver

Other Related Categories

271195, B65H 2968

Type

Patent

Status

active

Patent number

056696035

Description

ABSTRACT:
Method for guiding a sheet in vicinity of a sheet slow-down device of a sheet-processing machine. The sheet is gripped at a leading edge thereof with of a gripper system and the sheet is transported in a sheet-transport direction along a sheet travel path. The sheet has a defined region with which the sheet comes into contact with a sheet slow-down device for subsequently forming a sheet pile, and directing the sheet, in the vicinity of the sheet slow-down device, into a range of influence of a flotation guide produced along a guiding surface member by an air flow. The flotation guide, without taking into account the influence of the sheet slow-down device, is effective for bringing the sheet to a normal flotation level located above the guiding surface member. The sheet is supplied to the sheet slow-down device at a height level above the normal flotation level in order to form sheet-stabilizing vacuum forces resulting from the air flow. There is also disclosed a device for performing the method.

REFERENCES:
patent: 2261972 (1941-11-01), Matthews
patent: 3779545 (1973-12-01), Schuhmann et al.
patent: 3933351 (1976-01-01), Mayer et al.
patent: 4317563 (1982-03-01), Zimmerman et al.
patent: 4479645 (1984-10-01), Pollich
VEB Printing Machine Publ., May 13, 1965, pp. 2-5, for a delivery device for sheet printing machines.

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