As for the sales packaging of food, there are two main types of packaging techniques commonly used and basic nowadays, namely filling and wrapping. The filling method is almost applicable to all materials and various packaging containers. Specifically, for liquids, powders, and loose particles with good flowability, the packaging process can be completed mainly by relying on their own gravity, supplemented by certain mechanical actions if necessary. For semi fluid or large single or composite components with strong viscosity, corresponding mandatory measures such as squeezing, pushing, and picking up and placing are required. As for the wrapping method, it is different from this. It is mainly suitable for single or composite parts with a regular appearance, sufficient rigidity, and a requirement for tight packaging. Flexible plastic and its composite materials (some with additional lightweight pallets and lining plates) are often used for wrapping with the help of mechanical action.
In the past decade or so, the international packaging industry has attached great importance to improving the universal and multifunctional integration capabilities of packaging machinery and the entire packaging system, providing timely and flexible production methods for diversified products that are rapidly expanding in the market. At the same time, based on the practical needs of reasonably simplifying packaging and advantageous packaging process methods, continuous exploration has significantly accelerated the pace of our own technological innovation. Especially in line with the synchronous development of modern automatic machine tools, it is gradually clarified. To establish a diversified, universal, and multifunctional integrated new system of packaging machinery, it is necessary to first focus on solving the major problems of combination and mechatronics integration, which is undoubtedly an important development direction in the future.
Replacing manual packaging with mechanical packaging has greatly improved the efficiency of packaging, but the proliferation of packaging has also become a bad habit. 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.