Method and apparatus for evening the sliver produced by a card

In a carding machine having rotary rollers handling the fiber processed by the carding machine;

• a motor driving one of said rollers;
• and an output discharging a running sliver;
• an apparatus operatively connected with said carding machine for controlling said carding machine for evening the running sliver;
• the apparatus including a sliver thickness measuring means arranged at the card output for sensing the actual thickness of the running sliver and generating mechanical signals representing the actual sliver thickness;
• a transducer connected to said sliver thickness measuring means for converting the mechanical signals into first electric signals;
• a sliver regulating device connected to said transducer for receiving the signals from said transducer;
• said sliver regulating device being connected to said motor for controlling the rpm of said motor;
• a desired value setting device connected with said sliver regulating device;
• the improvement comprising an integrating device connected to said transducer for receiving said electric signals therefrom and for combining the signals into a second signal representing an actual sliver thickness;
• a memory connected with said integrating device for receiving said second signal from said integrating device;
• a computer connected to said memory for receiving signals from the memory;
• an inputting device connected to said computer for receiving signals from said inputting device and a sliver weighing device connected to said inputting device for applying signals to said inputting device.