초록 ▼

A method of filling containers with the help of a filler liquid stored in a pressure regulated vessel and delivered using at least one filler head comprises a filler tube and provided with a main shutter, the filler tube including internally a discharge cannula. After engaging the filler tube inside

A method of filling containers with the help of a filler liquid stored in a pressure regulated vessel and delivered using at least one filler head comprises a filler tube and provided with a main shutter, the filler tube including internally a discharge cannula. After engaging the filler tube inside the container, the main shutter of the tube is opened and a vent is created for the container and for the cannula, communication between the cannula and the vessel being closed. Before the end of filling, the vent is closed and the cannula is put into communication with the vessel. At the end of filling, when the liquid reaches a determined level of the tube, the shutter of the tube is closed, and communication between the discharge cannula and the vessel is closed.

대표청구항 ▼

1. A method of filling containers (2) with a filler liquid (1) stored in a pressure regulated vessel (3) and delivered via at least one filler head (6) comprising a filler tube (8) passing through a bearing seat (9) for the container (2) and provided with a main shutter (15) to allow or interrupt th

1. A method of filling containers (2) with a filler liquid (1) stored in a pressure regulated vessel (3) and delivered via at least one filler head (6) comprising a filler tube (8) passing through a bearing seat (9) for the container (2) and provided with a main shutter (15) to allow or interrupt the passage of filler liquid, the filler tube (8) including internally a discharge cannula (18) connected by a second shutter (C) to a regulated vent circuit (21) having a vent (25) and connected to a circuit (22) in communication by a third shutter (B) with the vessel (3), the method being characterized in that it comprises the following steps for filling a container: after engaging the filler tube (8) inside the container (2), closing by the third shutter (B), the circuit (22) in communication between the discharge cannula (18) and vessel (3), opening the main shutter (15) of the tube in order to fill the container (2) with the liquid in regulated stream mode, and creating both a fluid communication between the container and a vent (13) and fluid communication between the cannula (18) and the vent (13);before the end of filling, closing the vents (13, 25) and putting the discharge cannula (18) into communication with the vessel (3) by opening the third shutter (B) in order to fill the container with the liquid in gravity mode; andat the end of filling, when the liquid reaches a determined level of the filler tube (8), closing the main shutter (15) of the filler tube (8), closing communication between the discharge cannula (18) and the vessel (3), and creating a vent (13) for the inside of the container so as to allow the container to be removed from the filler head (6). 2. A method of filling according to claim 1, characterized in that it consists in closing the main shutter (15) of the filler tube (8) and establishing communication between the vessel (3) and the discharge cannula (18) when a residual volume of filler liquid is confined inside the cannula (18). 3. A method of filling according to claim 1, characterized in that it consists in simultaneously creating the vents (13, 25) for the container and for the cannula in particular in order to empty the residual volume of filler liquid located inside the cannula (18) and in order to initiate filling. 4. A method of filling according to claim 1, characterized in that it consists in controlling opening and closing of the shutter (15) of the filler tube (8) independently of the movements of inserting and removing the filler tube relative to the container. 5. A filler machine for filling containers (2) with the help of a filler liquid (1), the machine comprising: a vessel (3) for storing a filler liquid that is maintained at a regulated pressure;at least one filler head (6), each filler head comprising a filler tube (8) passing through a bearing seat (9) for the container and provided with a main shutter (15) for allowing or interrupting the passage of the filler liquid, the filler tube including internally a discharge cannula (18),the machine being characterized in that:each filler tube (8) comprising an external surface together with the bearing seat defines a communication passage (11) communicating with a circuit (12) for a regulated vent (13) from the container, the circuit having a shutter (A) with controlled opening and closing;each discharge cannula (18) is connected by controlled shutter (C) to a regulated vent circuit (21) for the cannula and by a controlled shutter (B) to a communication circuit (22) communicating with the vessel (3) thereby enabling the container to be filled in gravity mode;each shutter (15) of the filler tube is controlled by an actuator (16) under the control of a control circuit (14); andthe control circuit (14) is connected to the various shutters and actuators so that: during the initial filling stage, it opens the main shutter (15) of the filler tube (8), the controlled shutter (A) of the vent circuit (12) for the container, and the controlled shutter (C) of the vent circuit (21) connected to the discharge cannula (18), and it closes the communication circuit (22) between the vessel (3) and the discharge cannula (18);before the end of filling, it closes the controlled shutter (A) of the vent circuit (12) for the container, and the controlled shutter (C) of the vent circuit (21) connected to the discharge cannula (18), and it opens the communication circuit (22) with the vessel (3) in order to fill the container in gravity mode; andat the end of filling, it controls the actuator (16) to close the filler tube (8) and to open the controlled shutter (A) of the vent circuit (12) for the container. 6. A filler machine according to claim 5, characterized in that the main shutter (15) of the filler tube (8) is mounted at the end of a cannula (18) mounted inside the filler tube (8) and is shaped so that, in the closed position, it cooperates in leaktight manner with a bottom end (81) of the filler tube (8). 7. A filler machine according to claim 5, characterized in that the main shutter (15) of the filler tube (8) is carried by the cannula (18) to co-operate with a seat (151) arranged inside the tube (8) close to its top end.