Fabric pile lay detector using mirror system with means to rotate 360 degrees
AssigneeMilliken Research Corporation
InventorJoseph E. Rumler
Life of this patent
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Abstract
A system to detect the angle of pile lay of the fibers on the face side of a pile fabric by scanning the fibers with an infra red light source and measuring the intensity of the reflected infra red light beam. This is accomplished by using a rotating mirror system to deflect the infra red light beam onto the fabric and direct the infra red light beam reflected from the pile fibers on the fabric to a detector.
Claims20
A system to measure the pile lay of fibers on the face of a pile fabric comprising:
- means supplying a moving web of pile fabric, said pile fabric having a plurality of fibers on the face side thereof and an infra red light detector mounted adjacent the face side of said pile fabric, said detector having an infra red light source and a means to direct a light beam from said source onto the fibers of said pile fabrics and to direct reflected light beams from the fibers to a detecting means mounted in said detector, said means to direct the light beam from said source includes a rotating mounted mirror system connected to said light detector between said detector means and the face of the pile fabric and means to rotate said mirror system 360.degree..
A detector to measure the angle of pile lay of the fibers on the face side of a pile fabric comprising:
- a housing, an opening in one end of said housing, a cylindrical rotably member mounted in said one end of said housing, an infra red light beam source in said housing, an infra red light beam detection means in said housing, a plurality of substantially parallel mirrors mounted on one end of said cylindrical member and spaced from one another and means operably associated with said housing and said cylindrical member to intermittently rotate said cylindrical member.
A method of detecting the pile lay of the fibers on the face side of a pile fabric comprising the steps of:
- running a pile fabric past an infra red light beam detector with its pile side towards said detector, directing an infra red light beam towards the pile fabric at an angle of approximately 45.degree. thereto, detecting the infra ray light beam reflected by the pile fabric, rotating the detector intermittently through 360.degree. to change the point of impact of the infra red light beam on the face side of the pile fabric, detecting the reflected infra red light beams from the different points of impact and automatically measuring the data obtained from the reflected infra red light beams to provide information to determine the pile lay of the fabric.
Dependencies are inferred from the claim text.