Letter sorting system

The utility model aims at providing a letter sorting system goes up the transportation through minute accessory by belt transport line, when dividing the accessory through chute opening, slides in theswitch track through the automatic lift gate of automatic control to open the automatic lift gate of branch, divide the accessory just can need not every and supply an operator person of spout arrangement to separate the ladle to ladle operation, thereby the reduction personnel to be dropped into by in distribution to the corresponding spout, reduction manual work intensity, lift system's integrated treatment ability. In addition, because every concave strip is along switch track direction with the extending direction of sand grip on the gate body, no matter automatic lift gate edge switch track is opened or is closed, concave part on the shrouding and sand grip cooperation, convex part on the shrouding and concave strip cooperation come the gap between automatic lift gate of effective shutoff and the belt transp