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Do you know the filling method of Rotary K cup filling sealing machine?

Dec. 26, 2019

Due to the different physical and chemical properties of liquid products, proper filling methods must be used during the filling process. General Rotary K Cup Filling Sealing Machine often uses the following filling methods.

As a Coffee Capsule Product Line Factory, share the method with you:

1.Atmospheric pressure method

The atmospheric pressure method is also called pure gravity method, that is, under normal pressure, the liquid material flows into the packaging container by its own weight. Most free-flowing non-gas-liquid materials can be filled with this method, such as coffee, fruit wine, milk, soy sauce, vinegar, etc. The process of filling under normal pressure is ① liquid inlet and exhaust; ② stop liquid inlet; ③ remove excess liquid. That is, when the liquid material enters the packaging container, the air in the container is simultaneously eliminated. When the liquid material in the container meets the quantitative requirements, the feeding is automatically stopped, and then the remaining liquid in the exhaust pipe is eliminated.

2. Isobaric method

The isobaric method is also called the pressure-gravity filling method. It uses compressed air on the upper part of the liquid storage tank to inflate the packaging container first to make it equal to the pressure in the liquid storage tank. Inside the container. This method is commonly used for filling aerated beverages such as beer, soda, and sparkling wine. Filling with this method can reduce the loss of carbon dioxide contained in such products, and can prevent excessive foaming during the filling process and affect product quality and quantitative accuracy. The process is as follows: ① inflation isobaric pressure; ② liquid inlet and return; ③ stop liquid inlet; ④ release pressure. Release the remaining compressed air in the bottleneck, so as to avoid a sudden drop in pressure causing a lot of bubbling

Rotary Coffee Capsule Production Line

Rotary Coffee Capsule Production Line

3. Vacuum method

The filling is carried out under subatmospheric conditions and can be performed in the following two ways. 

(1) Differential vacuum

The liquid storage tank is at normal pressure, and only the packaging container is evacuated to form a vacuum. The liquid material relies on the pressure difference between the liquid storage tank and the container to be filled to generate the flow to complete the filling. This method is more commonly used in China.

(2) Gravity vacuum type

The liquid storage tank is in a vacuum. The packaging container is first evacuated to make it equal to the vacuum in the liquid storage tank, and then the liquid material flows into the packaging container by its own weight. Due to its complicated structure, it is rarely used in China. The vacuum method has a wide range of applications. It is suitable for liquids with a relatively large viscosity, such as oils and syrups, as well as liquids containing vitamins, such as vegetable juices and fruit juices. The vacuum reduces the contact between liquid and air and extends the shelf life of the product. The vacuum method is also suitable for filling toxic materials, such as pesticides, to reduce the spillage of toxic gases and improve working conditions. The process is as follows: ① the bottle is evacuated; ② the liquid is exhausted; ③ the liquid is stopped; ④ the remaining liquid is refluxed. That is, the residual liquid in the exhaust pipe is returned to the liquid storage tank through the vacuum chamber.

Our company also has Rotary Coffee Capsule Production Line for sale, welcome to consult.

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