Automatic positioning system for filling device of filling machine

An automatic positioning system for a filling device of a filling machine, wherein the filling device has a plurality of filling head mounted on a support to fill a plurality of containers positioned on filling positions with a material, comprising:

• a first moving unit assembled to a first upright brace set in a slidable way and the brace set is fixed to a fixing component of the filling machine wherein the support is assembled to the first moving unit;
• a first automatic positioning system for controlling the first moving unit to shift along the brace set, positioning the support at a desired position wherein the desired position includes a null position where a feeding nozzle of the filling head is positioned slight upper than the opening of the container, a filling lowstand where the feeding nozzle inserts into the container and approaches the bottom of the container, and a filling highstand, and controlling a rising speed where the support rises to the filling highstand from the filling lowstand;
• a second moving unit assembled to a second upright brace set in a slidable way while the brace set is fixed to the fixing component of the filling machine;
• a container-supporting unit which is fixed to the second moving unit;
• and
• a second automatic positioning system for controlling the second moving unit to shift along the second brace set, and positioning the second moving unit at a desire position wherein the desired position includes an container-supporting unit at a desired position along the linear route, wherein the desired position includes an initial position where the container-supporting unit evades the container and a supporting position where the container-supporting unit provides a supporting force to the container.