Transfer factor

Abstract

The present invention relates to a method and an apparatus in a carding machine in which a controllable means is present which can influence the transfer factor of the carding machine. The transfer factor indicates how many percent of the fiber mass present on the swift is transferred to the doffer during each rotation of the swift.

1 . A carding machine with a cylinder and a doffer, characterized in that a controllable means is present for influencing the transfer factor, i.e. the share of fiber mass on the cylinder cover which is transferred per rotation of the cylinder to the doffer.  
     
     
         2 . The carding machine as claimed in  claim 1 , characterized in that the means can influence the clothing of the cylinder and/or the doffer.  
     
     
         3 . The carding machine as claimed in  claim 2 , characterized in that the influence of the clothing is realized according to EP 403989.  
     
     
         4 . The carding machine as claimed in  claim 1 , characterized in that the controllable means comprises one or several actuators which change at least one of the following operating parameters, namely the rotational speed of the licker-in(s), the rotational speed of the cylinder, the rotational speed of the doffer, the ratio of the rotational speed of the swift to the rotational speed of the doffer, the distance between cylinder and doffer, the distance between cylinder and licker-in, the position and the attitude of the fiber-air guide element, in the lower carding zone the distance of the circular arch and the associated profiles to the swift, the settings in the post-carding zone, in particular the cover profiles and/or the carding elements, the production of the carding machine, or the distance between feed roller and licker-in.  
     
     
         5 . The method in a carding machine, characterized in that a controllable means is provided which influences the transfer factor.  
     
     
         6 . The method as claimed in  claim 5 , characterized in that the controllable means comprises one or several actuators which change at least one of the following operating parameters, namely the rotational speed of the licker-in(s), the rotational speed of the cylinder, the rotational speed of the doffer, the ratio of the rotational speed of the swift to the rotational speed of the doffer, the distance between cylinder and doffer, the distance between cylinder and licker-in, the position and the attitude of the fiber-air guide element, in the lower carding zone the distance of the circular arch and the associated profiles to the swift, the settings in the post-carding zone, in particular the cover profiles and/or the carding elements, the production of the carding machine, or the distance between feed roller and licker-in.  
     
     
         7 . The method or apparatus as claimed in one of the preceding claims, characterized in that the influencing of the transfer factor occurs during the operation of the carding machine.