Key systems of filling equipment: bottle feeding - liquid supply - filling - transmission throughout the entire process

This device is responsible for precisely transporting empty bottles to the filling station and mainly consists of two parts.

Material distribution screw

Made of nylon, it generates less noise when rotating. Each time the filling machine rotates one circle, the distribution screw rotates synchronously 60 times to ensure that the bottle bodies are conveyed forward in sequence and at uniform intervals. If the bottle body gets stuck, the "friction clutch" it is equipped with will slip, and the machine will automatically shut down to prevent component damage. After removing the stuck bottle body, the spring will drive the component to reset, and the machine can resume normal operation.

Bottle-lifting mechanism

Driven by the combined force of air pressure and machinery, it is equipped with two layers of cylinders (i.e., tubular components that can move up and down). After 0.25 to 0.4MPa of compressed air is introduced (about 2 to 4 times the inflation pressure of a bicycle), the outer cylinder will push the bottle upward, making the bottle mouth closely adhere to the filling valve. After filling is completed, the arc-shaped "curved plate" at the bottle outlet will push the cylinder downward, and the bottle body will fall and be conveyed to the capping machine.

Responsible for stably delivering beverages to the liquid storage tank and also controlling the liquid level height inside the tank, mainly including:

The beverage delivery system: It has a liquid inlet pipe (the pipe for delivering beverages), a sterile compressed air pipe (for delivering clean air), and a ring-shaped liquid storage tank (a large circular can for holding beverages). Under the liquid storage tank, there are 60 filling valves, corresponding to 60 filling positions. The beverage comes from the main liquid inlet pipe, passes through an "inlet head", and then flows into the liquid storage tank through six pipes. There is a "pilot valve" on the main liquid inlet pipe, through which the flow rate of the beverage can be observed: if it flows slowly, the pressure is insufficient; if it sprays too vigorously, the pressure is too high. The pressure must be adjusted properly before the main valve can be opened to supply the beverage. In addition, the sterile compressed air tube is divided into two paths. One path balances the pressure of the liquid storage tank to facilitate the flow of beverages in. The other one is used in conjunction with the parts that control the liquid level.

The device for controlling the liquid level: There are two "float balls" (like small rubber balls floating on the beverage) in the liquid storage tank. One tube has the lowest liquid level and the other has the highest.

This thing is the core component for filling drinks into bottles, just like the faucet with an automatic switch at home, but it's much smarter than the faucet. Filling drinks all depends on it following the steps without any hesitation:

Four working steps

First, "ventilation and leveling" : Use the rack that holds the bottles to push the empty bottles upwards, ensuring that the bottle mouths are tightly pressed against the filling valve. At the same time, some clean compressed air will be filled into the empty bottle, just like "inflating" the bottle, making the pressure inside the bottle the same as that of the large can holding the beverage, so that the beverage can flow in smoothly. ​

While filling, "release air" : After the pressure is leveled, the filling valve automatically opens, and the beverage slowly flows in along the bottle wall (otherwise, a lot of foam will splash out). The original air in the bottle will flow back to the large jar through a dedicated channel. When the drink reaches a small tube at the bottle mouth, the valve closes automatically, neither adding more nor less. ​

After the beverage is filled, the excess pressure inside the bottle will be gradually released first. If you don't do this, when you close the cap, the pressure inside the bottle will be too high and the foam will gush out, spilling all the drink. ​

Not a single drop of drink is wasted: When the bottle is lowered, the little bit of drink left in the filling valve will flow down the bottle mouth and into the bottle, without any waste. After that, the "faucet" was reset, waiting to fill the next bottle with a drink.

Just like the "muscles" of a machine, it provides power to all the parts and ensures that they rotate synchronously. A speed-regulating motor (capable of adjusting the rotational speed) drives the bottle-discharging star wheel to rotate through two reducers (reducing the rotational speed and increasing the force), and then the main shaft, liquid storage tank and bottle-feeding star wheel are driven to rotate through gears. At the same time, the sprocket and bevel gear drive the component supply screw to rotate, ensuring that the entire process of "bottle feeding - bottle pushing - beverage filling - bottle discharging" is smoothly connected without any disconnection.

What is the core working process of the isobaric filling machine? What path does an empty bottle take from entering the equipment to being filled up?

The core is "first adjust the pressure to be consistent, then fill the beverage" : The clean empty bottles are first sent to the bottle tray by the feeding screw (screw) and the bottle-pushing star wheel (wheel with grooves) in sections. The bottle support platform lifts the bottles upwards, making the bottle mouths tightly press against the filling valve to complete the isobaric filling. After filling, the bottle-pulling star wheel directly sends the bottles to the capping machine to enter the next capping process. The entire process is automatically connected.