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Title: System for maintaining the alignment of mandrels in filament winding operations

Abstract

The present invention is directed to a system for sensing and correcting the alignment of a mandrel being wound with filamentary material with respect to the filamentary material winding mechanism. A positioned reference pin attached to the mandrel is positioned in a beam of collimated light emanating from a laser so as to bisect the light beam and create a shadow therebetween. A pair of photocells are positioned to receive the bisected light beam with the shadow uniformly located between the photocells when the pin is in a selected position. The mandrel is supported in the selected position for the winding of a filamentary material by a position adjustable roller mechanism which is coupled by a screw drive to a reversible motor. Changes in the pin position such as caused by winding growth are sensed by the photocells to provide the displacement of the roller mechanism in the direction necessary to return the mandrel to the selected position.

Inventors:
 [1];  [2];  [3]
  1. (Clinton, TN)
  2. (Oak Ridge, TN)
  3. (Powell, TN)
Issue Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN
OSTI Identifier:
865231
Patent Number(s):
4480798
Assignee:
United States of America as represented by United States (Washington, DC) ORNL
DOE Contract Number:  
W-7405-ENG-26
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
maintaining; alignment; mandrels; filament; winding; operations; directed; sensing; correcting; mandrel; wound; filamentary; material; respect; mechanism; positioned; reference; attached; beam; collimated; light; emanating; laser; bisect; create; shadow; therebetween; pair; photocells; receive; bisected; uniformly; located; selected; position; supported; adjustable; roller; coupled; screw; drive; reversible; motor; changes; caused; growth; sensed; provide; displacement; direction; return; collimated light; filamentary material; light beam; selected position; reversible motor; filament winding; /242/

Citation Formats

Robinson, Samuel C., Dodge, William G., and Pollard, Roy E. System for maintaining the alignment of mandrels in filament winding operations. United States: N. p., 1984. Web.
Robinson, Samuel C., Dodge, William G., & Pollard, Roy E. System for maintaining the alignment of mandrels in filament winding operations. United States.
Robinson, Samuel C., Dodge, William G., and Pollard, Roy E. Sun . "System for maintaining the alignment of mandrels in filament winding operations". United States. https://www.osti.gov/servlets/purl/865231.
@article{osti_865231,
title = {System for maintaining the alignment of mandrels in filament winding operations},
author = {Robinson, Samuel C. and Dodge, William G. and Pollard, Roy E.},
abstractNote = {The present invention is directed to a system for sensing and correcting the alignment of a mandrel being wound with filamentary material with respect to the filamentary material winding mechanism. A positioned reference pin attached to the mandrel is positioned in a beam of collimated light emanating from a laser so as to bisect the light beam and create a shadow therebetween. A pair of photocells are positioned to receive the bisected light beam with the shadow uniformly located between the photocells when the pin is in a selected position. The mandrel is supported in the selected position for the winding of a filamentary material by a position adjustable roller mechanism which is coupled by a screw drive to a reversible motor. Changes in the pin position such as caused by winding growth are sensed by the photocells to provide the displacement of the roller mechanism in the direction necessary to return the mandrel to the selected position.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1984},
month = {1}
}

Patent:

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