Quantitative charging machine with multiple material ports

According to the technical scheme, the multi-material-opening quantitative charging machine is characterized in that a driving motor is arranged and can drive a lead screw to rotate, so that a sliding block is driven to move front and back along the lead screw, one end of dust filtering cloth can be driven to move front and back, and therefore the dust filtering cloth can be unwound and wound; dust generated during feeding is filtered through the dust filtering cloth, a large amount of dust is prevented from drifting into the air, dust of thermosetting powder coating is prevented from influencing the environment and being sucked, the belt weigher can weigh the weight of materials added into each feeding box, accurate and quantitative feeding can be achieved, and the feeding efficiency is improved. The automatic feeding machine is used for solving the problems that when an automatic feeding machine in a comparative patent is used for quantitatively adding thermosetting powder coating, more dust can be diffused