The utility model belongs to the technical field of filling equipment, and provides a liquid filling
machine which comprises a
machine frame, a feeding mechanism and a filling mechanism, the feeding mechanism and the filling mechanism are respectively installed on the
machine frame, the feeding mechanism comprises a material box used for storing raw materials, and the filling mechanism comprises a filling
assembly used for transferring the raw materials in the material box into a container. The filling
assembly comprises a
gear pump, a filling
nozzle and a lifting power piece, a feeding port of the
gear pump is communicated with the material box, a discharging port of the
gear pump is communicated with an inlet of the filling
nozzle, and the lifting power piece drives the filling
nozzle to ascend and descend; the device further comprises a recycling mechanism, the recycling mechanism comprises a negative pressure
barrel and a control valve, a feeding port of the negative pressure
barrel is communicated with a back suction port of the filling nozzle, and the control valve is connected with a discharging port of the negative pressure
barrel and the material box and used for controlling connection and disconnection of the discharging port of the negative pressure barrel and the material box. The liquid filling machine has the advantages that the filling precision is high, raw materials in the filling nozzle can be recycled to improve the
utilization rate of the raw materials, and
pollution caused by liquid dropping of the filling nozzle can be relieved.