Method and apparatus for spinning flying fibers into a twisted yarn

Claim 1

A method for producing a twisted spun yarn from flying fibers, which comprises the steps of: A. pressing a strand of fibers against a fiber-opening roller rotating at a high speed; B. separating and flying fibers at Step (A); C. introducing said flying fibers centrally into a rotating drum having a fiber condensing portion at the point of largest inner diameter formed by a fiber-assembling wall and a fiber-twisting wall; D. passing flying fibers after introducing (C) against said fiber-assembling wall and in the direction of fiber condensing portion of said rotating drum; E. twisting the fibers along the fiber-twisting wall into yarn; and F. removing yarn being spun.

Claim 2

A method for producing a twisted spun yarn from flying fibers, which comprises the steps of: A. pressing a strand of fibers against a fiber-opening roller rotating at a high speed; B. separating and flying fibers at Step (A); C. introducing said flying fibers centrally into a rotating drum having a fiber condensing portion at the point of largest inner diameter formed by a fiber-assembling wall and a fiber-twisting wall; D. passing flying fibers after introducing (C) against said fiber-assembling wall and in the direction of fiber condensing portion of said rotating drum; E. twisting the fibers along the fiber-twisting wall into yarn; and F. removing yarn being spun.

Claim 3

A method for producing a twisted spun yarn from flying fibers, which comprises the steps of: A. pressing a strand of fibers against a fiber-opening roller rotating at a high speed; B. separating and flying fibers at Step (A); C. introducing said flying fibers centrally into a rotating drum and against a rotating auxiliary fiber-assembling surface; D. passing said fibers from Step (C) to a rotating drum having a fiber condensing portion at the point of largest inner diameter formed by a fiber-assembling wall and a fiber-twisting wall, said fibers being passed against the fiber-assembling wall by means of a current of air and centrifugal force; E. causing the fibers to be moved from the fiber-assembling wall and in the direction of the fiber condensing portion of said rotating drum; F. twisting the fibers along the fiber-twisting wall into yarn; and G. removing yarn being spun.

Claim 4

A method for producing a twisted spun yarn from flying fibers, which comprises the steps of: A. pressing a strand of fibers against a fiber-opening roller rotating at a high speed; B. separating and flying fibers at Step (A); C. introducing said flying fibers centrally into a rotating drum and against a rotating auxiliary fiber-assembling surface; D. passing said fibers from Step (C) to a rotating drum having a fiber condensing portion at the point of largest inner diameter formed by a fiber-assembling wall and a fiber-twisting wall, said fibers being passed against the fiber-assembling wall by means of a current of air and centrifugal force; E. causing the fibers to be moved from the fiber-assembling wall and in the direction of the fiber condensing portion of said rotating drum; F. twisting the fibers along the fiber-twisting wall into yarn; and G. removing yarn being spun.

Claim 5

A method for producing a twisted spun yarn from flying fibers, which comprise the steps of: A. pressing a strand of fibers against a fiber-opening roll rotating at a high speed; B. separating and flying fibers at Step (A); C. introducing said flying fibers centrally into a rotating drum and against a rotating auxiliary fiber-assembling surface having a funnel-shaped portion with a fiber-assembling surface disposed within a rotating main rotary drum, said drum having a fiber condensing portion at the point of largest inner diameter formed by a fiber-assembling wall and a second wall disposed at an obtuse angle with the axis of drum rotation, said drum rotating at a high speed and in a direction opposite that of said assembling surface; D. passing said flying fibers from Step (C) against fiber-assembling wall by means of a current of air and centrifugal force; E. causing the fibers to be moved from the fiber-assembling wall and in the direction of the fiber condensing portion of said rotating drum; F. moving the fibers from the said condensing portion to the fiber-assembling area of the auxiliary surface; G. twisting the fibers along the fiber-twisting wall into yarn; and H. removing yarn being spun.

Claim 6

A method for producing a twisted spun yarn from flying fibers, which comprise the steps of: A. pressing a strand of fibers against a fiber-opening roll rotating at a high speed; B. separating and flying fibers at Step (A); C. introducing said flying fibers centrally into a rotating drum and against a rotating auxiliary fiber-assembling surface having a funnel-shaped portion with a fiber-assembling surface disposed within a rotating main rotary drum, said drum having a fiber condensing portion at the point of largest inner diameter formed by a fiber-assembling wall and a second wall disposed at an obtuse angle with the axis of drum rotation, said drum rotating at a high speed and in a direction opposite that of said assembling surface; D. passing said flying fibers from Step (C) against fiber-assembling wall by means of a current of air and centrifugal force; E. causing the fibers to be moved from the fiber-assembling wall and in the direction of the fiber condensing portion of said rotating drum; F. moving the fibers from the said condensing portion to the fiber-assembling area of the auxiliary surface; G. twisting the fibers along the fiber-twisting wall into yarn; and H. removing yarn being spun.

Claim 7

An apparatus for producing a twisted spun yarn from flying fibers, comprising in combination: a fiber-opening roller having needles planted on the surface thereof, a main rotary drum providing internally a fiber condensing portioN at the point of largest inner diameter formed by a fiber-assembling wall, and a fiber twisting wall, and a rotary element disposed inside said rotary drum and possessed of an auxiliary fiber-assembling surface and an auxiliary twisting surface, whereby fibers may be separated and flown by the fiber-opening roller and then pressed against the auxiliary fiber-assembling wall of the rotary element, the fibers which are now in the pressed condition being caused to move to the fiber-assembling wall of the rotary drum and then, onto the fiber condensing portion and the twisting wall, where fibers are twisted and intertwined with the end of the preceding yarn being spun.

Claim 8

An apparatus for producing a twisted spun yarn from flying fibers, comprising in combination: a fiber-opening roller having needles planted on the surface thereof, a main rotary drum providing internally a fiber condensing portioN at the point of largest inner diameter formed by a fiber-assembling wall, and a fiber twisting wall, and a rotary element disposed inside said rotary drum and possessed of an auxiliary fiber-assembling surface and an auxiliary twisting surface, whereby fibers may be separated and flown by the fiber-opening roller and then pressed against the auxiliary fiber-assembling wall of the rotary element, the fibers which are now in the pressed condition being caused to move to the fiber-assembling wall of the rotary drum and then, onto the fiber condensing portion and the twisting wall, where fibers are twisted and intertwined with the end of the preceding yarn being spun.