Air compressor electric control circuit for salt bag packing machine

The invention relates to an air compressor electric control circuit for a salt bag packing machine. The air compressor electric control circuit for the salt bag packing machine comprises a plurality of air compressor circuit bodies which are sequentially connected with power leads. Each air compressor circuit body comprises an air switch QF connected with a power source and an alternating current contactor KM connected between the air switch QF and a motor M, and a safety resistor RF is connected between the alternating current contactor KM and the motor M. A time relay KT is arranged in each air compressor circuit body. A pressure switch K is arranged on each air compressor circuit body. The pressure switch K of the front air compressor circuit body is sequentially connected with the time relay KT of the back air compressor circuit body. The effect that an air compressor operates efficiently and orderly is ensured through the time relays KT and the pressure switches K which are arranged additionally. 本发明涉及种盐