US 2005/0005747 A1 · Method and apparatus for transferring a paper web

Abstract

A method of, and apparatus for, transferring a web, in particular a paper web or cardboard web or an insertion tail severed from the web, from a web-discharging web-guiding surface, via a web conveying apparatus, to the next structural unit of a machine for producing and/or handling the continuous paper web or cardboard web, the insertion tail is detached from the web-guiding surface by way of at least one brief high-energy air jet. The present invention provides that in the case of a web of high grammage, immediately once the tail has been detached from the web-guiding surface, the tail, which has been severed at least on a preliminary basis, is completely severed by an additional mechanical severing arrangement and, by way of its newly formed start, gripped, and passed on, by way of the web conveying apparatus.

Claims10

Dependent claims

A method of transferring a continuous web, in particular one of a paper web, a cardboard web and an insertion tail, which is part of the continuous web, of a machine for at least one of producing and handling the web, comprising the steps of:

detaching the tail from a web-discharging web-guiding surface with at least one brief high-energy air jet;
completely severing the tail, in the case of a web of high grammage, by an additional mechanical severing arrangement;
and
transferring the web from said web-discharging web-guiding surface via a web conveying apparatus to a next structural unit.

1 more element

An apparatus for transferring a continuous web, in particular one of a paper web, cardboard web and an insertion tail, which is part of the continuous web, from a web-discharging web-guiding surface to a web conveying apparatus, in a machine for one of producing and processing the web, said apparatus comprising:

at least one border nozzle for detaching one of the web and the tail from the web-discharging web-guiding surface, the web having a plurality of borders, at least one said border nozzle is provided on at least one of said borders;
a severing arrangement operatively associated with at least one said border nozzle, at least one said border nozzle additionally performs said severing arrangement function of transversely severing one of the web and the tail and a function of performing a new start of one of the web and the tail which is fed into the web conveying apparatus, at least one said border nozzle configured for briefly expelling a high-energy air jet between the web-discharging web-guiding surface and one of the web and the tail;
and
a mechanical severing arrangement for completely severing the tail transversely when the web is of a relatively high grammage.

1 more element

Dependencies are inferred from the claim text.

Method and apparatus for transferring a paper web

Life of this patent

Method and apparatus for transferring a paper web

Life of this patent

Abstract

Claims10