Weighing and filling apparatus

A weighing and filling apparatus comprising a container support unit for supporting a container, a weight measuring unit for measuring a weight of the container supported by the container support unit, a filling device for supplying a filling material into the container supported by the container support unit, and a controller for controlling the filling device based on a container weight measured by the weight measuring unit, wherein:

• the weighing and filling apparatus includes a drive shaft that is coupled to the container support unit, an actuator for driving the drive shaft, and a height detecting unit for detecting a height of the container support unit;
• the weight measuring unit determines the container weight from a detected height detected by the height detecting unit and a drive signal of the actuator at the detected height;
• and
• the controller:
• calculates a first acceleration signal from a specified height of the container support unit that is set in advance and the detected height detected by the height detecting unit;
• calculates a second acceleration signal from the container weight determined by the weight measuring unit and an expected weight that is expected to be applied to the container support unit;
• and
• calculates the drive signal for keeping the container support unit at the specified height, from the first acceleration signal and the second acceleration signal, and drives the actuator based on the drive signal.