As far as food packaging is concerned, the most commonly used and most basic packaging techniques today are divided into two categories, namely, filling and wrapping. The filling method is suitable for almost all materials and all kinds of packaging containers. Specifically, for liquids, powders, and granular materials with good fluidity, the packaging process can be completed by relying mainly on its own gravity and must be supplemented by a certain mechanical action. For the semi-fluid with strong viscous or the single and combined parts with larger body shape, corresponding compulsory measures such as extrusion, push-in, pick-and-place etc. are required. As for the wrapping method, it is different from this. It is mainly suitable for single or combined parts with regular appearance, sufficient rigidity, and tighter packaging. Flexible plastics and their composite materials (some additional Lightweight pallets, liners), wrapped by mechanical action.

In the past ten years, the international packaging industry has attached great importance to improving the universal capabilities and multi-functional integration capabilities of packaging machinery and the entire packaging system, providing timely and flexible production methods for diversified products that are rapidly developing in the market. At the same time, based on the actual needs of reasonable simplification of packaging and superior packaging technology, continuous exploration has significantly accelerated the pace of its own technological innovation. Especially in response to the synchronous development of modern automatic machine tools, it is gradually clear. In order to establish a new system of packaging machinery that is diversified, generalized, and multifunctional, it is necessary to focus on solving the major problems of combination and electromechanical integration, which is undoubtedly an important development direction in the future.

Mechanical packaging instead of manual packaging has greatly improved the efficiency of packaging, but the proliferation of packaging has also become a vice. In the future, not only packaging, but also packaging machinery will develop towards environmental protection. Green environmental protection is the main theme of the future.

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