Process for filling containers, in particular cans, with liquids, and a filler valve group for carrying out the process
AssigneeSASIB Beverage S.p.A.
InventorLucio Conforti
Life of this patent
Estimating the term…
Abstract
The device relates to the field of processes and plants for filling cans with liquids, and provides a contemporaneous closure of the liquid and, gas inflow pipes. The device also relates to a filler valve group wherein the pipes are placed at the same level. A cam causes a rising or descent of the cans with respect to the valve group in order to regulate a filling level.
Claims13
A process for filling containers, in particular cans, comprising phases of:
- establishing a sealed coupling between a mouth of a container and a filler valve group, including a lifting of the container towards the filler valve group;
- opening a gas valve and a liquid valve and subsequently closing said valves once a filling operation has been effected;
- during said opening an inferior end of a gas inflow pipe is positioned at a same level as an inferior end of a liquid inflow pipe, or at a higher level with respect thereto, such that when a liquid level in the container reaches and closes the liquid inflow pipe, the liquid level also closes the gas pipe, or respectively the gas pipe remains open;
- separating the container from the valve group;
- wherein when the liquid level in the container reaches at least the liquid pipe, when the gas valve and the liquid valve are still mechanically open, a liquid level correction phase in the container occurs, by means of a gradual and adjustable change in a height position of the container with respect to the valve group, the size of the change being in accordance with a required level of liquid in the container.
A filler valve group for a filler machine of containers, in particular cans, comprising:
- a valve, shaped as a tubular stem for a liquid inflow pipe, to regulate a liquid inflow from a tank into a container arranged coaxially below the valve;
- a valve including a pipe for gas or air, said pipe being at least partially internal to the tubular stem during a filling phase and having an opening at an inferior end thereof, or at a higher position thereof, adjacent said valve for gas or air;
- wherein a cam is provided which regulates the descent of the container with respect to the valve group so that by means of a retarded or anticipated activation of a positioner which closes the pipes and a correspondingly higher or lower final level of liquid in the container is achieved.
A filler valve group in a filler machine of containers, in particular cans, with liquids, comprising:
- a valve, shaped as a tubular stem for a liquid inflow pipe, to regulate a liquid inflow from a tank to a container arranged coaxially below the valve;
- a valve including a pipe for gas or air, said pipe being at least partially internal to said tubular stem during a filling phase and having an opening at an inferior end thereof, or a higher position thereof, adjacent said valve for gas or air;
- wherein a cam is provided which regulates the ascent of the container with respect to the valve group with the valves still mechanically open in such a way that liquid flows back into the tank through the pipe performing a level reduction correction of the liquid in the container.
Dependencies are inferred from the claim text.