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What is the operation flow of vacuum packaging?

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take a (fresh world) machine as an example:

operation steps:

1 Power on

banner

2 Put the food to be vacuumized into the bag, and put the bag mouth into the vacuum chamber

3 The food shall not exceed three quarters of the bag, and the bag mouth shall be smoothed

4 Close the cover

5 Lock the latch

6 Select “dry matter”

7. Click “vacuum sealing”

8. Automatically jump to “sealing”

9. Open the knob latch

10. Open the cover and complete

the vacuum packaging machine is: after pumping the packaging bag into a low vacuum, it will automatically seal immediately. Due to the high vacuum in the bag, there is very little residual air, which inhibits the reproduction of bacteria and other microorganisms, and avoids oxidation, mildew and corruption of articles. At the same time, for some soft articles, after being packaged by the full-automatic vacuum packaging machine, the packaging volume can be reduced, which is convenient for transportation and storage

the principle of desktop vacuum packaging machine is to use plastic composite film or plastic aluminum foil composite film as packaging material to carry out vacuum packaging or vacuum inflatable packaging for solid, liquid, powdered and paste food, grain, fruit, pickles, preserved fruit, chemicals, electronic components, precision instruments and meters, rare metals, etc

I: classification of vacuum packaging machines

can be divided into desktop vacuum packaging machines, single chamber vacuum packaging machines, double chamber vacuum packaging machines, vertical vacuum packaging machines, household vacuum packaging machines, external pumping vacuum packaging machines and so on

II: working process of vacuum packaging machine:

1. Vacuum: the vacuum chamber is closed, the vacuum pump works, the vacuum chamber begins to vacuum, the vacuum in the packaging bag is vacuum at the same time, the pointer of the vacuum gauge rises to reach the rated vacuum degree (controlled by the time relay ISJ). The vacuum pump stops working and the vacuum stops. While the vacuum works, the two position three-way solenoid valve IDT works, the heat sealing gas chamber is vacuum, and the hot pressing frame remains in place

2. Heat seal: when the IDT is disconnected, the external atmosphere enters the heat seal gas chamber through its upper air inlet. Using the pressure difference between the vacuum chamber and the heat seal gas chamber, the heat seal gas chamber is inflated and expanded to move the upper heat pressure frame down and press the bag opening; At the same time, heat seal the transformer and start sealing; At the same time, the time relay 2sj works, acts after a few seconds, and the heat seal ends

3. Air return: the two position two-way solenoid valve 2DT is connected, the atmosphere enters the vacuum chamber, the pointer of the vacuum gauge returns to zero, the hot pressing frame is reset by the return spring, and the vacuum chamber is opened

4. Circulation: move the above vacuum chamber to another vacuum chamber, that is, enter the next working process, and the left and right chambers work alternately in a cycle

III: characteristics of vacuum packaging machine:

1. For liquid and high viscosity materials, it can automatically make bags, fill and package with high precision at high temperature. (suitable for external pumping vacuum packaging machine)

2. Extrusion exhaust packaging method is adopted. (internal pumping vacuum packaging machine)

3. The material has strong corrosion resistance and fully meets the requirements of food hygiene and anti-corrosion

4. The main machine has a firm structure, a man-machine interface corresponding to a variety of words, and simple operation. Atlas air compressor accessories

5. It can be optimally combined with various forms of filling systems to obtain the best packaging effect

you can go to the website of Fengxing packaging machinery factory. There is a packaging knowledge column with a lot of descriptions on the vacuum packaging process, the selection of vacuum packaging machines and vacuum packaging bags.

the special sealing bag vacuum machine seals the bag mouth while pumping air

plug in the power supply, adjust the vacuumizing time, cooling time and sealing time, and press the cover to vacuumize

not very clear! Look forward to the answer. Good luck

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