US 5,704,204 A · Method and apparatus for piecing yarn slivers to a parent yarn in a yarn spinning machine

Abstract

This invention is related to a yarn piecing apparatus of a spinning machine arranged with a holding member (12) that holds the parent yarn (Y') which is inserted in the hollow spindle (6) of the spindle member (5) which is seperated from the nozzle member (2), at a predetermined tension so that it does not rotate due to the rotating air current from the nozzle member. As the parent yarn (Y') inserted in the hollow spindle (6) of the spindle member (5) which is seperated from the nozzle member (2) is held by the holding member, there is no rotation of the parent yarn (Y') by the rotating air current and consequently, fibers can be reliably attached to the parent yarn (Y') and the success rate of yarn piecing can be increased.

Claims5

Dependent claims

A method for piecing a supply of slivers to a yarn in a spinning machine having a nozzle member separable from a spindle member, each of said members containing passages disposed on substantially mutually aligned axes, and means in said nozzle member for generating a rotating current of compressed air, said method comprising:

separating said nozzle member from said spindle member;
supplying a parent yarn through said passage in said spindle member to a position intermediate said spindle member and said nozzle member whereat an end of said parent yarn is offset from said axes of said nozzle member and said spindle member;
bringing said nozzle member and said spindle member together;
imposing a predetermined tension on said parent yarn sufficient to prevent its being rotated by said rotating current of compressed air;
and
thereafter, initiating the blowing through the nozzle member of compressed air in rotating currents and the supply of slivers to said parent yarn for piecing said slivers thereto.

3 more elements

Dependencies are inferred from the claim text.

Method and apparatus for piecing yarn slivers to a parent yarn in a yarn spinning machine

Life of this patent

Method and apparatus for piecing yarn slivers to a parent yarn in a yarn spinning machine

Life of this patent

Abstract

Claims5