Release time:

2024-03-19

Vacuum packaging technology originated in the 1940 s. Since the successful application of polyester and polyethylene plastic film in commodity packaging in 1950, vacuum packaging machines have developed rapidly, and their technological development trends are mainly reflected in the five aspects of high productivity, automation, stand-alone multi-function, composition of production lines, and the use of relevant new technologies. 1. High productivity. The productivity of the vacuum packaging machine has developed from several pieces per minute to several 10 pieces, and the productivity of the thermoforming-filling-sealing machine can reach more than 500 pieces/min. (2) Automation. The automatic vacuum packaging machine has the functions of vacuuming, sealing, printing and cooling. It is mainly used for the packaging of tea, peanuts, shrimps, corn and other foods. 3. Single machine multi-function. Realize multi-function on a single machine, can easily expand the scope of use. To realize the single function, modular design must be adopted. Through the transformation and combination of functional modules, it becomes a different type of vacuum packaging machine suitable for different packaging materials, packaging items and packaging requirements. 4, the composition of the production line. When more and more functions are needed, concentrating all the functions on a single machine will make the structure very complicated and the operation and maintenance inconvenient. At this time, several machines with different functions and matching efficiency can be combined into a more complete production line. 5. Adopt relevant new technologies. In the packaging method, a large number of inflatable packaging is used instead of vacuum packaging, and the research on inflatable components, packaging materials and inflatable packaging machines is closely combined; in the control technology, more computer technology and microelectronics technology are applied; in the sealing aspect, heat pipe and cold sealing technology are applied, and advanced devices can also be directly installed on vacuum packaging machines, such as high-precision combination scales for coarse-grained materials controlled by computers; in the rotary or vacuum packaging machine, the application of advanced high-speed arc surface cam indexing machinery.

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