The filling machine is mainly a small category of products in the packaging machine. From the perspective of material packaging, it can be divided into the liquid filling machine, paste filling machine, powder filling machine, and particle filling machine; In terms of the degree of automation of production, it is divided into the semi-automatic filling machine and full-automatic filling production line. Recently, with the QS certification of food, edible oil manufacturers have begun to pay attention to product quality and packaging, so oil filling machines play a prominent role in filling machines.

Filling machine starts

The development of filling machine manufacturing level is reflected in the development of core technology of filling valve: from gravity filling to advanced vacuum isobaric filling; from plane valve sealing structure to conical valve sealing structure; From the mechanical contact control of cam to PLC full-time program control; From traditional mechanical spring valve to modern electrically controlled pneumatic electronic valve. All these reflect the progress and development of technology.

China's filling machine manufacturing industry has experienced the process of imitation, the introduction of technology, digestion and absorption, innovation, and independent development. The speed of technological progress and innovation is very fast, and the gap between China and foreign advanced technology is constantly narrowing. The filling machines produced by many domestic manufacturers are representative, which can develop their characteristics based on imitation, and can be integrated into high-tech. for example, when filling, the filling head automatically extends into the bottle and slowly rises, so that the liquid does not overflow. The filling volume is displayed on the screen through PLC control. It is suitable for the submerged filling machine of liquid medicine or cosmetics with a certain amount of foam: it overcomes the problem that the roof packaging machine cannot be hotly filled, and cannot be capped It does not apply to the b-box and b-roof packaging machines.

Filling process

The filling process has high requirements for the turntable structure and the drive system of the filling machine. It requires that it is not only a smooth step-less speed regulation system with a large speed regulation ratio but also a system with short starting, braking, and electric operation time, a stable control process, and accurate positioning.

Before the 1980s, the drive control system of filling machines at home and abroad mostly used AC electromagnetic slip speed regulation system or hydraulic speed regulation system, but there were some shortcomings, such as poor speed regulation performance, low efficiency, complex structure, many faults, difficult maintenance and so on. With the continuous improvement of AC / DC asynchronous motor technology and the maturing of frequency conversion technology, the drive control system of the filling machine has been replaced by a DC speed regulation system and AC speed regulation system, especially the AC frequency conversion speed regulation system has the trend to replace the DC speed regulation system.

Application of filling machine

China's filling equipment is mainly used in the filling of wine and beverages. From the filling principle, it can be roughly divided into negative pressure filling machine, atmospheric pressure filling machine, isobaric filling machine, quantitative filling machine, material level filling machine, and other types. However, at present, the filling machines of various equipment manufacturers have their advantages and disadvantages in filling capacity, efficiency, suitable bottle type range, and degree of automation, which restrict the product packaging quality and productivity to varying degrees.

However, now the application of filling machines is mainly in wine, beverage, and other food industries, which is suitable for a kind of bottle shape. For drug filling, especially for small batches of clinical trial drugs, the filling requirements are variable, so there is still a lot of market space for processing filling machines that can meet the filling needs of various specifications and low cost. This requires the introduction of computer technology into the field of packaging machinery design, to achieve the rapid improvement of the flexibility and systematization of mechanical performance, meet different market needs, and reduce the design and production costs.

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