Apparatus and method for winding of webs
First Claim
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1. An apparatus for winding at least one web on a winding roll comprising at least a first roll, a second roll 4 and a third roll parallel to one another and to said winding roll, said apparatus having a nominal winding position in which:
- said first and second rolls and said winding roll are each in contact with said third roll;
there is no contact between said first roll and said second roll, between said first roll and said winding roll and between said second roll and said winding roll;
a first angle defined between a first half-plane delimited by the axis of said third roll and comprising the axis of said first roll and a second half-plane delimited by the axis of said third roll and comprising the axis of said second roll is smaller than 180°
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a second angle defined between a third half-plane delimited by the axis of said third roll and comprising the axis of said winding roll and a fourth half-plane delimited by the axis of said third roll and comprising an intersection line is greater than 90°
, said intersection line being defined as the intersection between the bisector plane of said first angle and the plane comprising the axis of said first roll and the axis of said second roll;
and the apparatus further comprises means for causing said third roll to position and align freely between said first and second rolls and said winding roll when said apparatus is in said nominal winding position.
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Accused Products
Abstract
Apparatus for winding a web (1) on a winding roll (2), comprises at least a first and a second roll (3, 4) and a third roll (5), said first roll being located on one side and said second roll and said third roll being located on the other side of the path of said web in course of winding on said winding roll. Said first and second rolls and said third roll are movable towards each other and towards said winding roll, so that said third roll get sandwiched between said winding roll on one hand and said first and second rolls on the other hand, said web passing between said first roll and said third roll and then between said third roll and said winding roll. Means cause said third roll to position and align freely between said first and second rolls and said winding roll.
11 Citations
32 Claims
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1. An apparatus for winding at least one web on a winding roll comprising at least a first roll, a second roll 4 and a third roll parallel to one another and to said winding roll, said apparatus having a nominal winding position in which:
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said first and second rolls and said winding roll are each in contact with said third roll;
there is no contact between said first roll and said second roll, between said first roll and said winding roll and between said second roll and said winding roll;
a first angle defined between a first half-plane delimited by the axis of said third roll and comprising the axis of said first roll and a second half-plane delimited by the axis of said third roll and comprising the axis of said second roll is smaller than 180°
;
a second angle defined between a third half-plane delimited by the axis of said third roll and comprising the axis of said winding roll and a fourth half-plane delimited by the axis of said third roll and comprising an intersection line is greater than 90°
, said intersection line being defined as the intersection between the bisector plane of said first angle and the plane comprising the axis of said first roll and the axis of said second roll;
and the apparatus further comprises means for causing said third roll to position and align freely between said first and second rolls and said winding roll when said apparatus is in said nominal winding position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. An apparatus for winding at least one web, on a winding roll, comprising at least a first roll, a second roll and a third roll parallel to one another and to said winding roll, the diameter of said first and second rolls being one to six times the diameter of said third roll and said apparatus having a nominal winding position in which:
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said first and second rolls and said winding roll are each in contact with said third roll;
there is no contact between said first roll and said second roll, between said first roll and said winding roll and between said second roll and said winding roll;
a first angle defined between a first half-plane delimited by the axis of said third roll and comprising the axis of said first roll and a second half-plane delimited by the axis of said third roll and comprising the axis of said second roll is smaller than 180°
; and
a second angle defined between a third half-plane delimited by the axis of said third roll and comprising the axis of said winding roll and a fourth half-plane delimited by the axis of said third roll and comprising an intersection line is greater than 90°
, said intersection line being defined as the intersection between the bisector plane of said first angle and the plane comprising the axis of said first roll and the axis of said second roll. - View Dependent Claims (32)
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Specification
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Current AssigneeDuPont Performance Elastomers L (Bristol-Myers Squibb Company)
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Original AssigneeDuPont Performance Elastomers L (Bristol-Myers Squibb Company)
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InventorsNicolai, Luc Marie Hubert Andre
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Primary Examiner(s)Jillions, John M.
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Application NumberUS10/018,628Time in Patent Office1,707 DaysField of Search242/541.6, 242/541.5, 242/547, 242/541.4, 242/541.7US Class Current242/547CPC Class CodesB65H 18/26 Mechanisms for controlling ...B65H 2601/211 Entrapping air in or under ...
