Textiles: cloth finishing – Expanding device for textile webs – Web-condition-responsive operation control
Patent
1997-09-26
1998-07-21
Vanatta, Amy B.
Textiles: cloth finishing
Expanding device for textile webs
Web-condition-responsive operation control
26 97, 26105, D06C 306
Patent
active
057819734
ABSTRACT:
A spreader for spreading a fabric having upper and lower sides, transversely spaced edges and longitudinally extending tire reenforcing cords spaced laterally across the fabric between the edges preparatory to rubberizing the fabric in a calender, where the fabric moves in a given path to the calender, the spreader comprising a cantilever mounted mandrel having an outer generally cylindrical surface concentric with a rotational axis, with the cylindrical surface having a helical groove having convolutions with a pitch equal to a desired cord distribution laterally of the fabric; a mandrel support structure adjacent one edge of the fabric and having means for rotatably mounting the mandrel in a position transverse of the fabric with the cylindrical surface aligned with the fabric path to be generally tangential to a side of the fabric as the fabric moves in the given path; a first motor on the support structure for rotating the mandrel about the axis at a given rotational speed; a second motor for moving the support structure in a direction parallel to the rotational axis of the mandrel and at a given linear speed as the first motor is rotating the mandrel until a number of cords of the fabric at the one edge of the fabric are captured in the helical groove and spaced by the pitch of convolutions of the groove at a desired cord distribution; means for stopping the mandrel when the one edge is at a detected transverse location with respect to the mandrel support structure; and, feedback means for thereafter maintaining the one edge at a desired transverse location of the one edge.
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Bulletin No. 10191--Apr. 1991 By North American Manufacturing Company Four (4) Pages "Calendar Lines `Total Concept`".
The North American Manufacturing Company
Vanatta Amy B.
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