Vacuum packaging is to protect products from environmental pollution and extend the shelf life of food and other packaging, can improve the value and quality of products. Vacuum packaging technology originated in the 1940s. Since 1950, polyester, polyethylene plastic film successfully applied to commodity packaging, vacuum packaging machine has been rapid development.
In the field of people's life and work, a variety of plastic vacuum packaging abounds. Lightweight, sealed, fresh, anti-corrosion, rust-resistant plastic vacuum packaging throughout the food to pharmaceuticals, knitwear, from precision product manufacturing to metal processing plants and laboratories and many other areas. Plastic vacuum packaging applications are increasingly widespread, promoting the development of plastic vacuum packaging machine, but also put forward higher requirements.
At present, today's world vacuum packaging technology development trend is mainly reflected in the following aspects:
High efficiency: high productivity vacuum packaging machine production efficiency has developed from several pieces per minute to dozens of pieces, thermoforming - filling - sealing machine production up to 500 pieces / min or more.
Automation: TYP-B series rotary vacuum chamber type packaging machine produced by a Japanese company has a fairly high degree of automation multi-station. The machine has two rotary tables for filling and vacuuming, and the filling rotary table has 6 stations to complete the bag supply, feeding, filling and pre-sealing until the package is sent to the vacuuming rotary table. Evacuation turntable has 12 stations, that is, 12 vacuum chambers, to complete the vacuum and sealing until the output of finished products, the production efficiency of up to 40 bags / min, mainly used for packaging soft canned food.
Single-machine multifunctional: the realization of multifunctionality in a single machine can easily expand the scope of use. Realize single multi-function must adopt modular design, through the function module change and combination, become applicable to different packaging materials, packaging materials, packaging requirements of different types of vacuum packaging machine. Representative products have Germany BOSCH company belongs to the HESSER factory production of multi-station bag vacuum packaging machine, its bag making, weighing, filling vacuum, sealing and other functions can be completed on a single machine.
Assembling production line: when the need for more and more functions, all the functions will be concentrated in a single machine will make the structure is very complex, operation and maintenance is not convenient. At this point can be different functions, efficiency matching the combination of several machines to achieve a more complete production line. Such as the French CRACE-CRYOYA and ISTM company developed fresh fish, vacuum packaging line and the Swedish Tree Hong International Limited and the Swedish Textile Research Institute developed the textile vacuum packaging system.
Adoption of new technologies: in the packaging method, a large number of inflatable packaging instead of vacuum packaging, inflatable components, packaging materials and inflatable packaging machine three aspects of the research is closely integrated; in the control technology, more application of computer technology and microelectronics; in the sealing, the application of heat pipe and cold sealing technology; advanced devices directly installed in the vacuum packaging machine, such as the installation of computer-controlled coarse particles High-precision combination scales; in the rotary or vacuum packaging machine, the application of advanced high-speed arc surface cam indexing machinery and so on. The adoption of all these new technologies makes the vacuum packaging machine more efficient and intelligent.
Post time: Jul-30-2024