The Principle Of Vacuum Packaging Machine

The vacuum packaging machine is composed of a plexiglass cover, vacuum chamber, body electrical control system, vacuum system, and other parts. The most important thing in the work of a single-chamber vacuum packaging machine is the vacuum system, which is composed of an air extraction valve, an inflation valve, an air release valve, and other components, which is equivalent to an actuator.

When the user puts the items to be packaged into the vacuum chamber of the single-chamber vacuum packaging machine, the vacuum pump can be started to pump air from the vacuum chamber. When the predetermined vacuum setting is reached, the vacuum pump will stop running, and then it will turn down A heat-sealing process.

Generally, the lower working room of a small vacuum packaging machine is equipped with a hot-pressing sealing device. The heating component is a nickel-chromium belt. The device is absolutely insulated between the bakelite hot-press body and the vacuum chamber. The bakelite hot-pressing frame is tightly attached to the airbag and heat-sealed The front airbag is in a vacuum state.

When the single-chamber vacuum packaging machine is heat-sealed, the airbag is communicated with the atmosphere through the solenoid valve to generate a pressure difference, which makes the airbag larger, the heating head (nickel-chromium belt) is lifted, and the sealed bag is pressed and heated at the same time, and then it is completed The sealing process. It can be said that the food packaged by the single-chamber vacuum packaging machine has a long shelf life, is not easy to deteriorate, and can also improve the product quality.