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Circular Knitting

Monarch Knitting Machinery: Apparatus and method for detecting broken hooks of needles in a knitting machine, and needles for use with same

Applicant: Monarch Knitting Machinery Inventor: YORK PAUL W [US]; GUTSCHMIT ALAN [US]; PERNICK BRUCE M [US Abstract not available for SV 2002000923  (A) Abstract of corresponding document: US 6318132  (B1) An apparatus for detecting broken hooks of needles in a knitting machine having first and second cam faces defining a cam for slidably receiving needle butts. The cam includes a raising cam portion, a stitch cam portion, and a we

5th January 2009

Knitting Industry
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Knitted Outerwear, Sports/​Activewear, Swimwear/​Beachwear, Household

 

Applicant: Monarch Knitting Machinery

Inventor: YORK PAUL W [US]; GUTSCHMIT ALAN [US]; PERNICK BRUCE M [US

Abstract not available for SV 2002000923  (A)

Abstract of corresponding document: US 6318132  (B1)

An apparatus for detecting broken hooks of needles in a knitting machine having first and second cam faces defining a cam for slidably receiving needle butts. The cam includes a raising cam portion, a stitch cam portion, and a welt cam portion in which tension forces between yarn loops and hooks bias the butts of intact needles against the first cam face. The detector has a detector butt raising segment wherein the second cam face in the welt cam portion is inclined away from the second cam face at the stitch position for urging butts toward the first cam face. A detector butt lowering segment follows the detector butt raising segment, in which the first cam face urges the butts toward the second cam face. A recess segment follows the butt lowering segment.; The recess is formed so that the second cam face is sufficiently spaced from the first cam face so that butts of needles having broken hooks are urged into the recess segment by the detector butt lowering segment, but butts of intact needles that are biased against the first cam face do not enter the detector recess segment. A sensor identifies terminating ends of needles whose butts are in the detector recess segment. The apparatus may further include means for stopping operation of the knitting machine when the sensor is activated. A method for detecting broken hooks is also provided, as are needles that are for use with the apparatus.          

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Apparatus and method for detecting broken hooks of needles in a knitting machine, and needles for use with same  

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