Method and apparatus for splicing spun yarns

An apparatus for splicing spun yarns in an automatic winder comprising a splicing nozzle disposed at a position apart from an ordinary yarn passage of the automatic winder, two movable yarn guide suction arms mounted to guide a yarn connected to a package and a yarn connected to a bobbin to said splicing nozzle, respectively, yarn end control nozzles disposed on both the sides of said splicing nozzle to insert both the yarn ends on the package side and on the bobbin side into the splicing nozzle when both the yarn ends are guided by said movable arms, yarn guide levers mounted in the vicinity of openings of said yarn end control nozzles and cutting means for cutting the yarns on both the package and bobbin sides between said yarn guide levers and said movable arms when said yarn guide levers are operated, wherein the yarn ends cut by said cutting means are sucked by the corresponding yarn end control nozzles, respectively and are exposed to an action of suction streams while the yarn ends are kept free and the yarn end of the package side and the yarn end on the bobbin side are spliced together under the action of said splicing nozzles.

A method for splicing spun yarns in an automatic winder by inserting yarn ends into a yarn splicing nozzle and being subjected to an air jet to splice them in the yarn splicing nozzle, characterized in that splicing is performed by a combination of steps comprising guiding yarn ends by yarn guide suction arms, inserting the yarn ends into the yarn splicing nozzle by yarn guide lever, cutting yarn ends, sucking and holding the yarn ends in yarn end control nozzles at the both sides of the yarn splicing nozzle respectively, and splicing the yarn ends by an action of the swirling air stream in the yarn splicing nozzle while drawing out the yarn ends which are kept free under an action of suction stream in the yarn end control nozzles.