Negative pressure automatic regulating system for material-feeding and cigarette-rod-forming machine of cigarette maker

The invention relates to a negative pressure automatic regulating system for a material-feeding and cigarette-rod-forming machine of a cigarette maker. The negative pressure automatic regulating system comprises a pneumatic control valve installed on each set of cigarette maker, two negative pressure sensors, a control unit, an industrial control computer mounted on the cigarette maker and another industrial control computer mounted on a wind dedusting system. The pneumatic control valve is installed on a negative pressure air duct of the material-feeding and cigarette-rod-forming machine and replaces an original hand-operated control valve; the two negative pressure sensors are respectively mounted on the negative pressure air duct at positions before and after the pneumatic control valve; and the signal of an interlock switch of an air compartment of the material-feeding and cigarette-rod-forming machine is connected to the control unit. The negative pressure automatic regulating system provided by the invention can realize automatic opening and closing of the negative pressure valves of the material-feeding and cigarette-rod-forming machine and automatic adjusting of the value of negative pressure so as to stabilize the negative pressure value of the material-feeding and cigarette-rod-forming machine, so the purposes of saving energy and improving tobacco rod quality are achieved and remote management and control of negative pressure of the cigarette maker are realized.