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 various packaging containers. Specifically, for liquids, powders, and granular materials with good fluidity, the packaging process can be completed mainly by relying on its own gravity and must be supplemented by a certain mechanical action. For the semi-fluid with strong viscosity or the single piece or assembly 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 stiffness, and tighter packaging. Flexible plastics and their composite materials (some additional Lightweight pallets, liners), wrapped by mechanical action.
In the past ten years or so, 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 with ever-changing market development. At the same time, based on the actual needs of rationally simplifying 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. To establish a new system of packaging machinery that is diversified, universal, 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.
