There are many types of packaging machines, and there are many classification methods. From different points of view, there are many types, according to the type of machinery: liquid packaging machine, powder packaging machine, granule packaging machine, patch packaging machine, sauce packaging machine, electronic combination scale packaging machine, pillow packaging machine; according to the packaging role, there are internal packaging, outsourcing packaging machines; according to the packaging industry, there are food, daily chemicals, textiles and other packaging machines; according to the packaging station, there are single station, multi-worker Position packaging machine; according to the degree of automation Divide, there are semi-automatic, fully automatic packaging machines, etc. 02 02 With the continuous improvement of people's living standards, the demand for various convenience foods has also increased dramatically. This has recently driven the rapid development of China's food packaging industry. Vacuum packaging machines are one of the fastest growing packaging machines and have broad prospects for development. There are many types of vacuum packaging machines. Here's an introduction to vacuum packaging machines. Defining a device that people often put packaged objects on the outside of a vacuum chamber to complete vacuum packaging is called a vacuum packaging machine. Principle Vacuum packaging machine is placed in the packaging bag of the packaged object through the exhaust nozzle, evacuated the air, exited the exhaust nozzle, and then finished sealing. Features 1. Part of the air (oxygen) in the packaging container is excluded, which can effectively prevent food spoilage and deterioration. 2. The use of packaging materials with excellent barrier (airtightness) and strict sealing technology and requirements can effectively prevent the exchange of packaging contents, avoid food weight loss, loss of taste, and prevent secondary pollution. 3. The gas inside the vacuum packaging container has been eliminated, which accelerates the heat conduction, which can improve the thermal sterilization efficiency and avoid the packaging container from breaking due to the expansion of the gas during heating and sterilization. In the food industry, vacuum packaging is very common. Cooked products such as chicken drumsticks, ham, sausages, etc.; pickles such as pickles, soybeans, candied fruits and other foods that need to be kept fresh are increasingly being vacuum-packed. Vacuum packaged food has a long shelf life, which greatly prolongs the shelf life of food.