About the classification and selection of filling machines
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First of all, we divide into automatic filling machine, semi-automatic filling machine and manual filling machine from the degree of automation; according to the classification of filling materials, it can be divided into liquid filling, paste filling, powder filling and particle filling. .
Liquid filling can be divided into pressure filling machine, atmospheric pressure filling machine, vacuum filling machine and aseptic filling machine according to the filling principle. The filling method of this type of filling machine is mainly timed filling and constant volume filling. . The pressure filling machine refers to the pressure above the atmospheric pressure during the filling process. The liquid level of the storage tank is higher than the liquid level of the filling machine, and the pressure is filled. This main high is used in the high-speed production line for filling. The accuracy is not too strict, such as soy sauce, liquor, beer, etc.; atmospheric pressure filling machine is filled by liquid weight under atmospheric pressure.
The filling machine uses the principle of piston or impeller to pressurize the material to complete the filling, and fewer bubbles appear during the filling process. This is also a common filling machine for people. It is widely used in various liquid emulsifiable materials. Vacuum filling machine refers to filling under the pressure of filling below atmospheric pressure. The installation structure is simple in principle and high in work efficiency. It is often used in the filling process to easily produce a lot of air bubbles. It is required to use it at a high speed. For example, aseptic filling machines such as oil and fruit wine are generally used on automated machines. This kind of filling machine is not polluted by the outside during the filling process, and is commonly used in dairy products such as milk and fruit milk.
Pastes can be divided into fluids, semi-fluids, semi-cured and granules. Fluid, semi-fluid materials, materials with less stringent drawing, can be used with ordinary paste filling machines. Such as shampoo, cosmetics, etc.; semi-cured materials and high drawing materials have to use hydraulic filling machine. Such as: butter, etc.; for the material with particles can be used to stir the sauce filling machine, such as bean paste.
Powder filling can be divided into two ways: one is to use a screw to control the weight of the material, and there is a powdery powdery substance with a certain fluidity. Such as milk powder, pearl powder, mask powder, etc.; the other is weighing, commonly used in high-dose filling. Such as flour, cement and so on.
The filling of the granules can be divided into a capacity type, a weighing type and a number granule filling machine, which can also be called a packaging machine. The capacity meter is mainly used for filling small particles, for filling machines with uniform particle size and large error, such as granule granules; weighing filling machine is used for large granules and complete filling method for materials. . Such as vegetable seeds, agricultural and sideline products, etc.; granular filling is the material particle size is relatively uniform, packaged by quantity, mainly used in the pharmaceutical industry, such as tablet medicine.
When choosing a filling machine, you must first understand what material is being filled, which type of machine to use, and then select a model that suits you according to the filling specifications.