| 摘要 |
An apparatus for filling containers with a liquid comprises a filler head (10) having a closable nozzle (12/13) and a displacement cylinder (14) having a power-actuated reciprocating piston (15). The cylinder is operatively connected to the filler head (10) and, through a non-return valve (18), to a storage container (19) for the liquid. A programmable logic controller (21) selects and controls the opening and closing times of the nozzle (12/13) and the length and timing of the piston forward and return strokes such that a measured amount of liquid from the storage container (19) is fed through the cylinder (14) to the filler head (10) and thence through the nozzle (12/13) to a container. The apparatus is controlled at the end of filling a container such that liquid remaining in the nozzle is drawn back into the filler head, in order to prevent dripping. <IMAGE> |
