APPARATUS FOR SENSING AND MEASURING TENSION OF TOW ENTERING A STAPLE FIBER CUTTER

• Main Author: SMITH G,US
• Format: Patent
• Language: English
• Published: 10.09.1974
• Subjects: GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; NATURAL OR ARTIFICIAL THREADS OR FIBRES; PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING; SPINNING; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ARTCOLLECTIONS [XRACs] AND DIGESTS; TEXTILES

Apparatus for sensing and measuring tension of a tow entering a staple fiber cutter, such as the staple fiber cutter disclosed in the Coffin et al., U.S. Pat. No. 3,557,648. The tow describes a circular path as it continuously is guided onto the cutter at various points around the periphery of the cutter to be wrapped therearound. Thus the tow continuously changes direction, thereby generating a force with a constant vertical component and a variable horizontal component. The apparatus senses and measures only the vertical components of force and includes a guide roll located above the cutter and on the axis of the cutter for guiding the tow to the cutter and mounted on a pivotally mounted lever, the axis of the lever lying generally in the same plane as the axis of the guide roll. A transducer bears against the lever to maintain the generally same plane of the two axes and to sense and measure the movement of the lever and hence only the vertical components of force exerted by the tow on the lever.