Yarn cutting head

Details Yarn cutting head Yarn cutting head

D - Textiles, Paper

05

C

112/18

D05C 15/16 (2006.01) D05C 15/24 (2006.01)

Patent

CA 1267571

YARN CUTTING HEAD ABSTRACT OF THE DISCLOSURE A yarn cutting head for a tufting machine, including a discoid, rigid cutting plate having a central bore for the free passage there- through of a first element of the machine, means for rigid attachment of the plate to a second element of the machine, and at least one cutting hole eccentrially located relative to the bore and substan- tially concentric with a yarn-feeding duct provided in the second member of the machine. The yarn cutting head further includes a revolving cutting knife made of a relatively thin, elastically flexible material, drivable by a motor of the tufting machine via a drive shaft and consisting of a hub portion provided with a hole for connection to the drive shaft, and an elongated cutting portion extending beyond the hub portion. The cutting portion is provided with a cutting edge outwardly extending with respect to the hole and means is provided for pressing at least part of the cutting portion against the cutting plate. The elastically flexible cutting knife is prebent in such a way that when upon assembly, the rear face of the hub portion is pressed against the cutting plate, the elongated cutting portion is pressed against the plate along a relatively narrow strip including the cutting edge.

526613

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