The liquid Filling machine mainly consists of a bucket divider, a buffer roller track, a bucket selection and flow control device, a weighing filling machine, a cap pressing machine, and an electrical control system. The electrical part is composed of PLC, weighing instruments, human-machine operation interface, frequency converters, etc. According to the user's personalized settings, it can fully automate the control of processes such as bucket entry, bucket division, bucket positioning, weighing filling, and bucket transportation and cap pressing, achieving rapid and high-precision multi-station filling. The automatic filling machine uses high-precision weighing instruments to synchronously control the multi-station filling process. The weighing instrument can conveniently set parameters such as the target filling weight value, large feeding advance value, medium feeding advance value, and skin weight comparison value. The dynamic response is fast, and it can automatically remove the influence of environmental vibration, fully ensuring the requirements of filling accuracy. The weighing filling machine has a user-friendly human-machine interface. The design of the human-machine interface is based on human operation habits, and various modes have user-friendly operation interfaces, providing convenience while also having various protection functions. Users can set personalized working parameters according to actual needs, and after setting, they can directly enter the working state. The operation is simple and convenient, without the need for complex operations such as waiting for restart. The entire filling production line has a comprehensive dynamic self-check function, which can automatically detect any abnormalities such as bucket congestion and overload on the production line. When an abnormality is detected, it can automatically pause, and after the abnormality is eliminated, it can quickly resume work. The operation is simple, the recovery is fast, and it is safe and reliable.

The Liquid filling machine uses weighing instruments, including a central processor, touch screens connected to the central processor, and alarms. Before the quantitative filling machine starts, the operator inputs the alarm upper deviation value and alarm lower deviation value through the touch screen. The automatic filling machine adopts a double-bucket structure, with the inner bucket being the material weighing bucket. During the operation of the incremental automatic filling machine, the material is transported to the weighing bucket through the inlet pipe, and the mass of the material in the weighing bucket gradually increases. When the weight measured by the weighing bucket reaches the set material quantity for filling, the weight measured by the weighing instrument is greater than the set alarm upper deviation value or less than the set alarm lower deviation value, and the central processor drives the alarm to give a real-time alarm to remind that the weighing is不合格. The weighing filling machine also includes a feeding channel； the feeding channel includes a coarse Feeder and a fine feeder that are respectively connected to the feed hopper. The coarse feeder and the fine feeder both include a feeding pipe， a feeding valve at the bottom of the feeding pipe， and a controller on the feeding pipe.

The weighing filling machine controls the feeding valves of the coarse feeder and the fine feeder to open simultaneously for feeding. When the weight of the weighing bucket reaches the final target weight value minus the fast feeding closing value， the controller closes the feeding valve of the coarse feeder， stops the coarse feeding， and enters the fine feeding mode； when the weight of the weighing bucket reaches the final target weight value minus the slow feeding closing value， the controller controls the feeding speed of the fine feeder to be minimized through the fine feeder controller， entering the fine feeding mode， until the weight of the weighing bucket reaches the final target weight value. The controller closes the feeding valve of the fine feeder， stops feeding， and the weighing is completed. Before the electronic filling machine starts， the operator inputs the final target weight value， the fast feeding closing value， and the slow feeding closing value through the touch screen. The touch screen displays the weight of the weighing bucket that has been weighed and various set values in real time. The feeding channel conveys material to the weighing bucket with a height difference， and after the feeding is completed， there are still residual materials in the air that have not fallen into the weighing bucket. This will cause errors due to multiple discharges. Before the electronic filling machine starts， the display screen is input with the height correction value. When the weight of the weighing bucket reaches the final target weight value minus the height correction value， the controller closes the feeding valve of the fine feeder， stops feeding， and the remaining weight is made up by the materials in the air， ensuring accuracy.

Basic parameters：

Maximum weighing capacity： 30kg

Minimum sensitivity： 10g

Filling error： ±10-20g (depending on the filling speed)

Filling speed: 100 - 150 barrels per hour (depending on the feed flow rate)

Applicable containers: ≤ Ф350xh500mm narrow-mouthed barrels, open-top barrels

Explosion-proof rating: EXdiaIIBT4

Power supply: AC220/50Hz

Air source: 0.4 - 0.8 Mpa

Temperature range: -10℃ - 40℃

Control method: 2-speed pneumatic control

Filling method: Insertion type, liquid surface

Scale platform size: 400×400mm

Storage platform: 400×1000mm

Structural material: SUS304 stainless steel.

Gun head pipeline: SUS304 stainless steel and Teflon (optional 316L)

Material interface: DN40 quick-fit tower connector, optional flange connector.

Air source interface: 8mm air pipe connection