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The main component of the rotary filling machine is the filling mechanism, also known as the filling valve or the filling head. According to different materials, the filling form is different, so the design of the corresponding filling mechanism is also varied. According to the filling form, the filling machine can be divided into normal pressure filling, isostatic filling, vacuum filling, pressure filling and other models.
Introduction of main categories of filling machines:
Atmospheric filling machine
It is filled by liquid weight under atmospheric pressure. This type of filling machine is divided into two types: timing filling and constant volume filling. They are only suitable for filling low-viscosity and gas-free liquids such as milk and wine.
Pressure filling machine
Filling is carried out at higher than atmospheric pressure, and it can also be divided into two types: one is the pressure in the liquid storage cylinder is equal to the pressure in the bottle, and the filling is filled by the weight of the liquid flowing into the bottle, which is called equal pressure filling. ; The other is that the pressure in the liquid storage cylinder is higher than the pressure in the bottle, and the liquid flows into the bottle by pressure difference. This method is often used in high-speed production lines. The pressure filling machine is suitable for filling liquids containing gas, such as beer, soda, champagne, etc.
Vacuum filling machine
Filling is carried out when the pressure in the bottle is lower than atmospheric pressure. This type of filling machine has a simple structure, high efficiency, and a wide range of material viscosity adaptations, such as oils, syrups, fruit wines, etc.
Oil filling machine
It can be filled with various oils, such as edible oil, lubricating oil, peanut oil, soybean oil, etc. Oil filling machine is a filling machine specially developed for the filling of oil materials, which can realize the flexibility of manual operation and unmanned operation.
Liquid filling machine
Brand-new horizontal design, lightweight and convenient, automatic feeding, for thicker pastes, hoppers can be added. The vertical liquid filling machine has manual and automatic switching functions: when the machine is in the "automatic" state, the machine automatically performs continuous filling at the set speed. When the machine is in the "manual" state, the operator steps on the pedal to realize the filling. If the machine is kept on and held, it will also become an automatic continuous filling state. Anti-drip filling system: The cylinder moves up and down during filling to drive the bulkhead. The material tank and the three links are connected by handcuffs, without any special tools, and the loading, unloading and cleaning are very convenient.
The fundamental difference between them is that the design of the feeding device and the filling mechanism has its own characteristics, so that the filling forms are different. Rotary filling machines are generally designed with multiple filling heads to increase productivity. The number of filling heads is as few as 6 heads and as many as 60 heads. With the increase in the number of filling heads, the filling capacity has also been continuously improved. Some models have exceeded the productivity of 30,000 bottles/h.
Filling machinery technology is developing rapidly, showing the characteristics of high technical level, multiple functions, large-scale, high-speed, and simple structure. The United States, Germany, Japan, Italy and other countries have relatively high technical level of filling machinery. my country’s filling machinery has undergone the development process of imitation, introduction, digestion and absorption, and independent innovation, and has developed rapidly, continuously narrowing the gap with foreign advanced technology. .