Foaming agent conveying device of filling machine

The utility model discloses a foaming agent conveying device of a filling machine, which comprises a conveying box, a transverse plate is fixed above the conveying box through a fixing rod, a motor is arranged above the transverse plate, two reciprocating lead screws are rotatably connected between the transverse plate and the conveying box, and the two reciprocating lead screws are connected with the motor through a transmission mechanism. A fixing plate is arranged above the conveying box, the fixing plate is connected with the two reciprocating lead screws through a connecting mechanism, an extrusion groove is formed in the conveying box, and a first piston is connected into the extrusion groove in a sealed and sliding mode. By arranging the transmission mechanism, the connecting mechanism and the liquid feeding mechanism, the motor can be used for driving the reciprocating lead screw to rotate, so that the fixing plate is used for driving the first piston to reciprocate up and down in the extrusion groove