Because different materials are transported with different reference ratios, if the powder is transported, the load of this material to the feeder is small, and the corresponding material transport speed will also be improved. When other punch feeders are processing materials, If the pressure in the cylinder does not reach the extra pressure required by the machine, the speed of the mechanical pressure added inside the machine at this moment is directly connected to the moment when the punch feeder can continue, that is to say, if the system pressure does not reach the planned value, Then the punching can be completed.