Slubbing Machine with an Arrangement for Detecting and Removing Yarn Flaws

Abstract

The invention relates to a slubbing machine for producing a rove ( 1 ) from a fiber web ( 2 ), wherein the slubbing machine has at least one spinning nozzle ( 3 ) with an inlet opening ( 4 ) for the fiber web ( 2 ), wherein the spinning nozzle ( 3 ) is assigned at least one air nozzle through which the air can be channeled into the spinning nozzle ( 3 ) in order to impart a protective rotation to the fiber web ( 2 ) within the spinning nozzle ( 3 ), wherein the spinning nozzle ( 3 ) has an outlet ( 5 ) through which the rove ( 1 ) can be drawn out of the spinning nozzle ( 3 ), and wherein the slubbing machine comprises at least one receiving device ( 28 ) arranged downstream of the spinning nozzle ( 3 ) in the transport direction of the rove ( 1 ), particularly in the form of a winding device ( 6 ) to receive the rove ( 1 ) leaving the spinning nozzle ( 3 ). The invention proposes that the slubbing machine comprises an arrangement ( 7 ), to be passed by the rove ( 1 ), for detecting and removing yarn flaws ( 8 ), the arrangement ( 7 ) being placed between the outlet ( 5 ) of the spinning nozzle ( 3 ) and the receiving device ( 28 ). The invention further discloses a method for producing a rove ( 1 ) from a fiber web ( 2 ) using a slubbing machine, which is characterized in that, after leaving a spinning nozzle ( 3 ), the rove ( 1 ) passes an arrangement ( 7 ) for detection and removal of yarn flaws ( 8 ), which is placed between the outlet ( 5 ) of the spinning nozzle ( 3 ) and a receiving device ( 28 ), wherein by means of the arrangement ( 7 ), yarn flaws ( 8 ) are detected upstream of where the rove ( 1 ) is received, and are removed from the rove ( 1 ).

1 . Slubbing machine for producing a rove ( 1 ) from a fiber web ( 2 ),
 wherein the slubbing machine has at least one spinning nozzle ( 3 ) with an inlet opening ( 4 ) for the fiber web ( 2 ),   wherein at least one air nozzle is assigned to the spinning nozzle ( 3 ) through which air nozzle the air can be channeled into the spinning nozzle ( 3 ) in order to impart a protective rotation to the fiber web ( 2 ) within the spinning nozzle ( 3 ),   wherein the spinning nozzle ( 3 ) has an outlet ( 5 ) through which the rove ( 1 ) can be drawn out of the spinning nozzle ( 3 ),   wherein the slubbing machine comprises at least one receiving device ( 28 ) arranged downstream of the spinning nozzle ( 3 ) in the transport direction of the rove ( 1 ), particularly in the form of a winding device ( 6 ) to receive the rove ( 1 ) leaving the spinning nozzle ( 3 ),   characterized in that   the slubbing machine comprises an arrangement ( 7 ), to be passed by the rove ( 1 ), for detecting and removing yarn flaws ( 8 ), the arrangement ( 7 ) being placed between the outlet ( 5 ) of the spinning nozzle ( 3 ) and the receiving device ( 28 ).   
     
     
         2 - 15 . (canceled)