Lubricant coating device for cigarette packet lining paper of packaging machine

The utility model discloses a lubricant coating device for cigarette packet lining paper of a packaging machine. The lubricant coating device comprises a liquid storage tank, a dipping roller and a coating roller, the liquid storage tank is filled with a liquid lubricant, a support is arranged at the bottom of the inner side of the liquid storage tank, a connecting rod is rotationally connected to the top of the support, the two ends of the connecting rod are connected with the axis of the dipping roller and the axis of the coating roller respectively, and the gravity of the dipping roller is larger than that of the coating roller. The buoyancy of the dipping roller is smaller than that of the lubricant, and the dipping roller is attached to the surface of the coating roller; and the coating roller is further attached to lining paper, the lining paper can drive the coating roller to rotate, so that the dipping roller rotates synchronously, and the lubricant coating is transferred to the lining paper through t