Yarn breakage detecting device of multiple wound yarn texturing machine

摘要

PROBLEM TO BE SOLVED: To provide the subject device capable of simply detecting a yarn cutting and cutting all doubled yarns even when only one of plural doubled yarns is cut for preventing an inferior product from generating or the yarn from twining around to a rotating part by setting up so as to cut all doubled yarns when the degree of decrease in a tension for untwisting reaches at a set value. ;SOLUTION: This detecting device for a yarn cutting of a yarn doubling false twister, is provided by (stretching) false twist processing a filament yarn Y unwound from a yarn supplying package through a cutter 2, between a first feed roller FR1 and a second feed roller with a primary heater H1, a cooling plate L2 and a false twisting device 9, detecting a tension for untwisting by an untwisting tension detecting device 1, and inputting the result to a controlling part 6. The good yarn doubled by an intertwining treatment device IL is wound by a winding device through a detecting device 3 for yarn cutting. When the degree of a decrease in the tension for untwisting reaches at a set value, the controlling part 6 activates the cutter 2 for cutting the yarns Y, Y.;COPYRIGHT: (C)1997,JPO