Winding method

Patent metadata

Field	Value
Publication number	US-10183825-B2
Application number	US-201615256711-A
Country	US
Kind code	B2
Filing date	Sep 5, 2016
Priority date	Feb 26, 2010
Publication date	Jan 22, 2019
Grant date	Jan 22, 2019

Abstract

A winding method includes rotating a winding drum; transferring a first web structure from a first lay down station to the web stabilizing bed of a first winding station; cutting the web structure; contacting the web structure with a web assembly hold down element, winding the web structure into a roll assembly; and discharging the roll assembly from the winding drum.

First claim

What is claimed:

1. A method of winding a layered structure comprising steps of:
a) rotating a winding drum;
b) transferring a first web from a first lay down station to a first winding station of the winding drum;
c) transferring a second web from a second lay down station to a face-to-face position with the first web of the first winding station;
d) cutting the second web;
e) contacting the second web with a web assembly hold down element;
f) winding the first and second webs as assembled into a layered roll assembly; and
g) discharging the layered roll assembly from the winding drum.

2. The method of claim 1 , wherein winding the first and second webs as assembled into the layered roll assembly comprises winding the assembled webs between a winding mandrel and a winding nip element at the first winding station.

3. The method of claim 1 , comprising concurrently winding the first and second webs as assembled into the layered roll assembly while rotating the winding drum.

4. The method of claim 1 , wherein rotating the winding drum comprises rotating the winding drum about a first rotational axis, and wherein winding the first and second webs as assembled into the layered roll assembly comprises rotating a winding mandrel at the first winding station about a second rotational axis.

5. The method of claim 1 , wherein winding the first and second webs as assembled into the layered roll assembly comprises adjusting a radial position of the first winding station relative to a rotational axis of the winding drum to accommodate growth in a radial dimension of the layered roll assembly.

6. The method of claim 5 , comprising varying the radial position of the first winding station in a regular manner over at least a portion of a rotation of the winding drum.

7. The method of claim 1 , comprising fixing a trailing edge of the layered roll assembly relative to a remainder of the layered roll assembly.

8. The method of claim 1 , comprising transferring a third web from a third lay down station to a face-to-face position with the second web prior to winding the first and second webs as assembled into the layered roll assembly.

9. The method of claim 1 , wherein winding the first and second webs as assembled into the layered roll assembly is performed at the first winding station.

10. The method of claim 9 , comprising concurrently winding a plurality of the first and second webs as assembled at a plurality of winding stations including the first winding station.

11. The method of claim 10 , wherein the plurality of winding stations are spaced circumferentially around the winding drum.

12. The method of claim 11 , comprising driving the plurality of winding stations with a single common drive belt.

Assignees

• Duracell Us Operations Inc

Inventors

• Bittner Dale F
• Lyman Christopher R

Classifications

• B65H19/2223 Primary

  Turret-type with more than two roll supports · CPC title

• B65H18/08 Primary

  Web-winding mechanisms · CPC title

• B29C53/562

  spirally · CPC title