The main structure of the liquid filling machine has been understood, and then the working principle of the liquid filling machine is familiar with, driven by the transmission machinery, so that the various processes can coordinate the division of labor and truly achieve the effect of linkage. The transmission device drives the filling valve and the inlet and outlet bottle wheel to rotate at the appropriate speed, and the empty bottle transported through the chain is brought under the filling valve by the inlet bottle wheel, and the corresponding filling valve begins to fill accurately and quantitatively after detecting the empty bottle, and the filled bottle is then taken out by the outlet bottle wheel and sent to the chain channel output.

The main structure of the liquid filling machine is mainly composed of the feeding device of the packaging container, the lifting mechanism of the bottle support, the feeding device of the filling liquid (that is, the feeding device), the liquid level control device, the filling valve, etc. Nowadays, liquid filling machine equipment with its product performance, suitable for daily chemical, pharmaceutical, food, chemical and other industries of paste and liquid filling.