Rotary-type filling machine and method for calculating filling quantity for rotary-type filling machine

摘要

A rotary-type filling machine includes a rotary body, a liquid distribution chamber, a plurality of filling flow path configuration units, each of which has a fluid path constituted by a liquid path connected to the liquid distribution chamber and a liquid valve and configured to individually introduce a liquid into a container, a filling control device, a liquid supply unit, a pressure difference information detection unit configured to detect pressure difference information between a liquid distribution chamber pressure, which is a pressure of the liquid in the liquid distribution chamber, and a filling atmospheric pressure detected as a pressure of a flow release unit in a filling flow path configuration unit at an arbitrary radial direction position of the rotary body, and a rotation information detection unit configured to detect rotation information of the rotary body.

主权项

1. A rotary-type filling machine comprising:
a rotary body rotatable about a rotation central axis; a liquid distribution chamber that has a cylindrical shape and is configured to store a liquid supplied from an outside of the rotary body, the center of the liquid distribution chamber being coincident with the rotation central axis of the rotary body; a plurality of filling flow path configuration units arranged about the rotation central axis in the rotary body, each of which has a fluid path constituted by a liquid path connected to the liquid distribution chamber and a liquid valve installed at the liquid path and configured to individually introduce the liquid into a container; a filling control device configured to control the respective liquid valves and control a filling quantity of the liquid with respect to the container; a liquid supply unit installed at a fixing section and configured to supply the liquid into the liquid distribution chamber; a pressure difference information detection unit provided radially outside the liquid distribution chamber, and configured to detect pressure difference information between a liquid distribution chamber pressure, which is a pressure of the liquid in the liquid distribution chamber and which includes a centrifugal force caused by a rotation of the rotary body, and a filling atmospheric pressure detected as a pressure of a flow release unit in the filling flow path configuration unit at an arbitrary radial direction position of the rotary body, and a rotation information detection unit configured to detect rotation information of the rotary body, wherein the filling control device calculates a flow rate of the liquid flowing out of a liquid outlet of the liquid path based on the detected pressure difference information, rotation information and a previously obtained relationship between the pressure difference information and rotation information and the flow rate of the liquid flowing out of the liquid outlet of the liquid path, and controls a filling quantity of the liquid with respect to the container.