Bulky yarn producing apparatus
AssigneeTeijin Seiki Co., Ltd.
InventorsFumio Tanae, Hirokazu Matsuoka
Life of this patent
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Abstract
Herein disclosed is an apparatus for producing a bulky yarn like natural fibers. The apparatus comprises a twist mechanism provided on a yarn travelling path for twisting and untwisting a yarn; a rubbing mechanism provided on the yarn travelling path of the yarn which is twisted by the twist mechanism and having a rough surface so as to rub filaments constituting the yarn for imparting scratches thereto; and a stretching mechanism provided on the downstream of the rubbing mechanism along the yarn travelling path of the untwisted yarn to stretch the yarn so that the filaments are severed at their scratches to produce a bulky yarn.
Claims7
A bulky yarn producing apparatus comprising in combination:
- a twisting zone along a yarn travelling path, a twist mechanism in said twisting zone for twisting and untwisting a yarn;
- a rubbing mechanism located in said twisting zone and having a rough surface so as to rub filaments of the yarn for imparting scratches thereto, said rubbing mechanism being disposed relative to said twist mechanism so as to rub the yarn while the yarn is in a twisted state,
- a stretching zone disposed along a portion of said yarn travelling path downstream of said twisting zone where the yarn is in an untwisted state, a stretching mechanism disposed in said stretching zone to stretch the yarn so that the filaments are severed at their scratches to produce a bulky yarn.
A bulky yarn producing apparatus comprising in combination:
- a twist mechanism provided on a yarn travelling a path for twisting and untwisting a yarn;
- a rubbing mechanism provided on said yarn travelling path of said yarn which is twisted by said twist mechanism and having a rough surface so as to rub filaments constituting said yarn for imparting scratches thereto;
- and a stretching mechanism provided on the downstream of said rubbing mechanism along said yarn travelling path of said untwisted yarn to stretch said yarn so that said filaments are severed at their scratches to produce a bulky yarn;
- said twist mechanism comprising three rotary shafts equi-spacedly arranged in parallel relation with each other and three friction discs each secured to each of said rotary shafts in such a manner that said friction discs are disposed in partly overlying and axially spaced relation with each other and extend in parallel planes different from each other;
- said rubbing mechanism comprising a rubbing disc secured to one of said rotary shafts to be disposed above said friction rollers and formed with said rough surface on its periphery.
A bulky yarn producing apparatus, comprising in combination:
- a twist mechanism provided on a yarn travelling path for twisting and untwisting a yarn;
- a rubbing mechanism provided on said yarn travelling path of said yarn which is twisted by said twist mechanism and having a rough surface so as to rub filaments constituting said yarn for imparting scratches thereto;
- and a stretching mechanism provided on the downstream of said rubbing mechanism along said yarn travelling path of said untwisted yarn to stretch said yarn so that said filaments are severed at their scratches to produce a bulky yarn;
- said twist mechanism comprising two rotary shafts arranged in parallel relation with each other, two friction discs each secured to each of said rotary shafts, and a cylindrical twist spindle having an axial bore and a peg extending across said axial bore to allow said yarn to be turned therearound for imparting the twist and untwist thereto;
- said rubbing mechanism comprising a rubbing disc secured to one of said rotary shafts to be disposed above said friction discs and formed with said rough surface on its periphery.
Dependencies are inferred from the claim text.