US 6,406,417 B1 · Device for continuously winding up longitudinally cut paper webs with rolls changed automatically at the machine speed

Abstract

Process and device for continuously winding a plurality of longitudinally cut paper webs at machine speed by using a device that includes support rollers and at least one pair of disks associated with each of the support rollers, such that the at least one pair of disks is arranged concentrically with and rotates independently of, its associated support roller. The at least one pair of disks includes a first winding device having a first cardboard tube disposed thereon and a second winding device having a second cardboard tube disposed thereon, such that each of the support rollers include at least one of the pair of disks, which are concentrically arranged with and which rotate independently of the support rollers. The process includes axially adjusting the disks of the at least one pair of disks to correspond to a width of web to be wound, positioning the pair of disks in a first position, attaching a first end of the web onto the first cardboard tube, and running a pair of supporting rollers and the first cardboard tube up to a machine speed thereby winding the web onto the first cardboard tube. The process also includes turning the pair of disks to a second position, accelerating the second cardboard tube up to machine speed, cutting the paper web transversely to a web run direction when a desired winding diameter is achieved on the first cardboard tube thereby producing a second end, and winding the second end of the web onto the second cardboard tube. Moreover, the process includes turning the pair of disks to a third position, stopping the rotation of the first cardboard tube, removing the paper web wound onto the first cardboard tube from the first winding device, and disposing a third cardboard tube onto the first winding device.

Claims19

Dependent claims

A process for continuously winding a plurality of longitudinally cut paper webs at machine speed by using support rollers and at least one pair of disks associated with each of the support rollers, such that the at least one pair of disks is arranged concentrically with and rotates independently of, its associated support roller, the at least one pair of disks including a first winding device having a first cardboard tube disposed thereon and a second winding device having a second cardboard tube disposed thereon, such that each of the support rollers include at least one of the pair of disks, which are concentrically arranged with and which rotate independently of the support rollers, the process comprising:

axially adjusting the disks of the at least one pair of disks to correspond to a width of web to be wound;
positioning the pair of disks in a first position;
attaching a first end of the web onto the first cardboard tube;
running the supporting rollers and the first cardboard tube up to a machine speed thereby winding the web onto the first cardboard tube, wherein the first cardboard tube is driven by a first core winding device;
turning the pair of disks around an axis of the associated support roller to a second position;
accelerating the second cardboard tube up to machine speed with a second core winding device;
cutting the paper web transversely to a web run direction when a desired winding diameter is achieved on the first cardboard tube thereby producing a second end;
winding the second end of the web onto the second cardboard tube;
turning the pair of disks around an axis of the associated support roller to a third position;
stopping the rotation of the first cardboard tube;
removing the paper web wound onto the first cardboard tube from the first winding device;
and
disposing a third cardboard tube onto the first winding device.

10 more elements

A device for continuously winding webs comprising:

a longitudinal cutting device positioned to cut a web into a plurality of webs;
at least two support rolls positioned downstream from, relative to a web run direction, said longitudinal cutting device;
at least one pair of disks being associated with each support roll and mounted concentrically with, and for rotation independently from, the associated supporting roll;
the disks of said at least one pair of disks being axially positionable to accommodate a width of the web to be wound;
at least two winding devices, associated with said at least one pair of disks, that are radially positionable, and each of said at least two winding devices comprising a core drive adapted to receive winding tube and to drive the received winding tube to a machine speed;
and
at least one cutting device arranged to cut the web laterally to the web run direction and adapted to wind a leading end of the laterally cut web onto a new winding roll, wherein a winding tube for the new winding roll is accelerated to a machine speed before the paper web is attached to the new winding tube.

4 more elements

A process for continuously winding a plurality of webs in an apparatus that includes a longitudinal cutting device, at least two support rolls positioned downstream from, relative to a web run direction, the longitudinal cutting device, at least one pair of disks associated with each support roll and mounted concentrically with, and for rotation independently from, the associated supporting roll, the disks of the at least one pair of disks are axially positionable, at least two winding devices, associated with the at least one pair of disks, that are radially positionable, each of the at least two winding devices include a core drive adapted to receive and drive a winding tube, and at least one cutting device, the process comprising:

axially adjusting the disks of the at least one pair of disks to correspond to a width of web to be wound;
longitudinally cutting the web into a plurality of webs;
positioning a winding tube in at least one of the winding devices in each of the at least one pair of disks;
rotating the winding tubes and support rolls at a machine speed, wherein the winding tubes are driven by the core drive of the winding device;
winding the plurality of webs onto the rotating winding tubes to form wound rolls;
positioning another winding tube in another of the winding devices in each of the at least one pair of disks;
rotating the another winding tubes to a machine speed via the core drive of the another winding device;
rotating the at least one pair of disks around the associated support rolls to a next winding position;
cutting the webs winding onto the wound rolls laterally to a web run direction;
and
winding a leading edge of the cut web onto the another winding tubes.

8 more elements

Dependencies are inferred from the claim text.

Device for continuously winding up longitudinally cut paper webs with rolls changed automatically at the machine speed

Life of this patent

Device for continuously winding up longitudinally cut paper webs with rolls changed automatically at the machine speed

Life of this patent

Abstract

Claims19