The feeder located at the rear of card is a connecting equipment between blower and card. The structure of the upper and lower trunks in order to preven the roller around spend phenomenon, two pairs of upper and lower cotton boxes to the roller diameter than the conventional big, put an end around flowers and the generated the hopper flow in stabitity phenomenon. The machine adopts the form of self-circulation minimize the old machine dust unnecessary pressure, fully enclosed structure is one of the current market price cottx)n box select the most suitable.