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

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;
• and
• 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 of the container detected as a pressure of a flow release unit in the filling flow path configuration unit at substantially the same radial direction position as a liquid outlet of the liquid path of the rotary body, wherein
• the filling control device calculates a flow rate of the liquid flowing from the liquid outlet of the liquid path based on the detected pressure difference information and a previously obtained relationship between the pressure difference information and the flow rate of the liquid flowing from the liquid outlet of the liquid path, and controls a filling quantity of the liquid with respect to the container.

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, a sealing tool configured to seal a filling atmosphere in a container, a return gas path configured to guide a return gas during the filling from the container into a return gas chamber which is pressure-controlled and a return gas valve installed at the return gas path, and configured to individually guide a liquid into the container;
• a pressurized gas path configured to supply a pressure-controlled gas with respect to the container and a pressurized gas valve installed at the pressurized gas path;
• a discharge gas path configured to discharge a pressurized gas remaining in the container and the sealing tool upon completion of the filling and a discharge gas valve installed at the discharge gas path;
• 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 return gas chamber pressure of the return gas chamber 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.

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 the 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, a sealing tool configured to seal a filling atmosphere in a container, a return gas path configured to guide a return gas during the filling from the container into a return gas chamber which is pressure-controlled and a return gas valve installed at the return gas path, and configured to individually guide a liquid into the container;
• a pressurized gas path configured to supply a pressure-controlled gas with respect to the container and a pressurized gas valve installed at the pressurized gas path;
• a discharge gas path configured to discharge a pressurized gas remaining in the container and the sealing tool upon completion of the filling and a discharge gas valve installed at the discharge gas path;
• 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;
• and
• 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 return gas chamber pressure of the return gas chamber detected as a pressure of a flow release unit in the filling flow path configuration unit at substantially the same radial direction position as a liquid outlet of the liquid path of the rotary body, wherein
• the filling control device calculates a flow rate of the liquid flowing from the liquid outlet of the liquid path based on the detected pressure difference information and a previously obtained relationship between the pressure difference information and the flow rate of the liquid flowing from the liquid outlet of the liquid path, and controls a filling quantity of the liquid with respect to the container.

A method of calculating a filling quantity for a rotary-type filling machine, wherein the machine includes:

• 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 the 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;
• and
• a liquid supply unit installed at a fixing section and configured to supply the liquid into the liquid distribution chamber,
• the method comprising:
• an information detecting process of detecting pressure difference information between a pressure of an inlet side of a flow in the filling flow path configuration unit and a pressure of a release side of the flow of a flow release unit side in the filling flow path configuration unit, and rotation information of the rotary body;
• and
• a calculating process of obtaining a flow rate of the liquid flowing from a liquid outlet of the liquid path based on the detected pressure difference information and rotation information, a previously obtained relationship between the pressure difference information and rotation information and the flow rate of the liquid flowing from the liquid outlet of the liquid path,
• wherein the flow rate includes an increased flow rate by a centrifugal force of the rotary body.

A method of calculating a filling quantity for a rotary-type filling machine, wherein the machine includes:

• 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;
• and
• a liquid supply unit installed at a fixing section and configured to supply the liquid into the liquid distribution chamber,
• the method comprising:
• an information detecting process of detecting pressure difference information between a pressure of an inlet side of a flow in the filling flow path configuration unit and a pressure of a release side of a flow of a flow release unit side in the filling flow path configuration unit at substantially the same radial direction position as an outlet of the liquid path;
• and
• a calculating process of obtaining a flow rate of the liquid flowing from a liquid outlet of the liquid path based on the detected pressure difference information, and a previously obtained relationship between the pressure difference information and the flow rate of the liquid flowing from the liquid outlet of the liquid path,
• wherein the flow rate includes an increased flow rate by a centrifugal force of the rotary body.