US 2013/0192785 A1Published application

Web turn-up cutting apparatus and method

AssigneePaprima Industries Inc.

InventorDieter H. HILKER

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Abstract

A web turn-up cutting method and apparatus for severing a continuous web that is traveling in a travel direction. The apparatus comprising a first water nozzle and a second water nozzle that are mountable on respective nozzle carriages and transversely movable. The apparatus further comprising a water jet controller adapted to activate a water supply of the first and second water nozzles and a carriage controller adapted to actuate the nozzle carriages to provide a transversal movement of the first and second water nozzles. The first and second nozzles being adapted to define together a substantially X-shaped cut on the traveling continuous web. The substantially X-shaped cut defining at least a substantially V-shaped tail for ending a forming roll, an opposite substantially V-shaped start for starting a new spool, a detachable first wing and a detachable second wing. A method of manufacturing paper in a papermaking machine.

Claims27

Dependent claims

A web turn-up cutting apparatus for severing a continuous web that is traveling in a travel direction, the apparatus comprising:

a first nozzle connectable to a first water supply hose and adapted to produce a first water cutting jet and a second nozzle connectable to a second water supply hose and adapted to produce a second water cutting jet, the first nozzle and the second nozzle each being mountable on respective nozzle carriages and being transversely movable with respect to the travel direction of the continuous web;
a jet controller adapted to activate a water supply of the first water supply hose for the first nozzle to produce the first water cutting jet and to activate a water supply of the second water supply hose for the second nozzle to produce the second water cutting jet;
and
a carriage controller adapted to actuate the nozzle carriages to provide a transversal movement of the first nozzle and of the second nozzle;
wherein the first nozzle and the second nozzle define together a substantially X-shaped cut on the traveling continuous web, the substantially X-shaped cut defining at least a substantially V-shaped tail for ending a forming roll, an opposite substantially V-shaped start for starting a new spool, a detachable first wing and a detachable second wing, said apparatus being configured to perform the method as defined in claim 13.

2 more elements

A method of manufacturing paper in a papermaking machine, the method comprising:

defining a substantially X-shaped cut in a traveling continuous paper web of the papermaking machine, the substantially X-shaped cut forming at least a substantially V-shaped tail for ending a forming roll, an opposite substantially V-shaped start for starting a new spool, a detachable first wing and a detachable second wing;
detaching the detachable first wing and the detachable second wing from the traveling continuous paper web;
and
distancing the substantially V-shaped tail from the substantially V-shaped start by allowing the substantially V-shaped start to engage a new spool.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 13/490,747Filed 7 Jun 2012
Priority: 30 Jan 2012
Published: 1 Aug 2013
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

D21F 7/04
Other details of machines for making continuous webs of paper: paper-break control devices
B65H 19/265
Cutting-off the web running to the wound web roll: using a cutting member moving linearly in a plane parallel to the surface of the web and along…
D21F 7/006
Other details of machines for making continuous webs of paper: cutting the edges of the paper-web
B65H 2301/41414
Preparing winding process: involving pulper or doctor blade or air knife