US 11,643,294 B2 · Flexible drive and core engagement members for a rewinding machine

Abstract

A core end engagement assembly is provided for a rewinding machine. The core end engagement assembly is configured to engage an end of the core and transmit rotational movement to the core during winding of the web material about the core. The assembly may include a drive housing. A chuck may project from a first end of the drive housing and may be configured to engage the end of the core. A first actuator may reciprocate the drive housing along a central axis of the core between an engagement and disengagement position of the chuck relative to the core. A second actuator may be mounted on the drive housing. The second actuator may be configured and adapted to move the chuck between release and hold positions. A flexible drive shaft operatively connects with and rotationally drives the chuck.

Claims16

Dependent claims

A method of winding a web material about a core to form a log of wound web material comprising:

providing a winding nest in which a log is supported at a periphery of the log during winding;
feeding a web material toward the winding nest;
directing a core toward the winding nest;
causing the log to rotate in the winding nest by driving the periphery of the log and winding the web material about the core;
engaging an axial end of the core with at least one core end engagement assembly;
transmitting rotational movement to the core with the at least one core end engagement assembly by rotationally driving the core end engagement assembly with a flexible drive shaft.

3 more elements

A method of engaging an end of a core during winding of web material about the core to form a log of wound web material, the method comprising:

providing a core chuck, the core chuck being rotatable with the core at least some time during the winding of the web material about the core, the core chuck having an end, the end comprising at least one elastomer ring adapted and configured for engaging an inside surface of the core;
inserting the end of the core chuck with the at least one elastomer ring into an end of the core while the core is rotating;
axially compressing the at least one elastomer ring to radially expand the at least one elastomer ring in a manner such that the at least one elastomer ring engages the inside surface of the core;
winding the web material about the core;
axially elongating the at least one elastomer ring to radially contract the at least one elastomer ring in a manner such that the at least one elastomer ring disengages from the inside surface of the core;
and
withdrawing the end of the core chuck with the at least one elastomer ring from the core end while the core is rotating.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application

17/545,125Filed 8 Dec 2021 · continuation

Priority

27 Nov 2018

Published

US 2022/0097989 A131 Mar 2022

Granted

9 May 2023

Term ends

Not estimatedThe source records don’t support an estimate.

Classification7 codes

B65H 18/10
Web-winding mechanisms: mechanisms in which power is applied to web-roll spindle
B65H 19/2269
The web roll being driven by a winding mechanism of the nip or tangential drive type: cradle
B65H 18/20
Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web: the web roll being supported on two parallel…
B65H 18/22
Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web: by friction band

Family

Application16/201,034Parent of this continuation-in-part · filed 27 Nov 2018

Application16/416,515Parent of this continuation · filed 20 May 2019

US 11,046,540 B2Parent of this continuation-in-part · filed 29 Jun 2021

US 2022/0097989 A1Pre-grant publication · published 31 Mar 2022

US 11,247,863 B2Parent of this continuation

Application16/416,515Parent of this continuation-in-part

US 2019/0161302 A1Published application

US 2020/0165091 A1Published application

US 11,643,294 B2This patent

From the US filing history. Foreign family members aren’t listed.

Flexible drive and core engagement members for a rewinding machine

Life of this patent

Flexible drive and core engagement members for a rewinding machine

Life of this patent

Abstract

Claims16