The invention discloses a liquid filling device and a using method thereof, and belongs to the technical field of packaging equipment. The liquid filling device comprises a
machine frame and a PLC electric cabinet, wherein the PLC electric cabinet is mounted on the
machine frame, the top of the
machine frame is fixedly connected with a
bottle feeding hopper and a driving roller which are obliquelyarranged through a mounting frame, the bottom of the
bottle feeding hopper is provided with a
vibration exciter, the driving roller is driven by a
servo motor and is controlled by PLC
programming, the end of the driving roller is linked with a transmission chain, the driving roller is connected with a
conveyor belt through the transmission chain, the outer surface of the
conveyor belt is providedwith uniformly distributed positioning grooves, the outer wall of the
conveyor belt is fixedly connected with a driving belt wheel, the outer wall of the
bottle conveying hopper is connected with a driven belt wheel through a rotating rod, and the driven belt wheel is connected with the driving belt wheel through a
transmission belt. According to the liquid filling device, the allocating functionof bottle bodies at the position of the bottle feeding hopper and the fixing function of the bottle bodies are achieved while the conveyor belt is used for conveying the bottle bodies, the center ofgravity of the bottle bodies is kept stable, and the conveying stability and the cover rotating stability are improved.