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With the wide use of vacuum packaging machines in the market, the number of operators of vacuum packaging machines is also increasing. It is necessary for operators to understand and master the operation rules and procedures of vacuum packaging machines, because the familiar use of vacuum packaging machines can not only improve the efficiency of the equipment, but also make the equipment use longer.

The following summarizes the four major processes of vacuum packaging machine, so that operators and related personnel have a comprehensive understanding of this.

1、 Vacuum the packaging materials to reach the predetermined vacuum degree: put the packed vacuum bag into the vacuum chamber, then close the vacuum cover, the vacuum pump starts to work, and the vacuum chamber will be vacuumized at the same time. The vacuum meter pointer rises to reach the predetermined vacuum degree. The time control is controlled by the time relay ISJ The vacuum pump stops working automatically after the completion of air pumping. At the same time of vacuum packaging machine operation, two position three-way solenoid valve IDT starts to work, the air bag keeps vacuum, and the heat sealing pressing frame keeps in place.

2、 Heat seal the package bag: after the solenoid valve IDT is disconnected, the outside atmosphere enters into the air bag through its upper air inlet. The air bag is inflated and expanded by using the pressure difference between the vacuum chamber and the air bag, so that the heat sealing pressure frame is jacked up and the bag mouth is compressed. At the same time, the heat sealing transformer works and starts to seal. At the same time, the time relay ISJ began to work, completed the operation in a few seconds, and the heat sealing was finished.

3、 Vacuum chamber air intake: the two position two-way solenoid valve 2DT is opened, the atmosphere enters the vacuum chamber, the pointer of the vacuum packaging machine returns to zero position, the heat sealing pressing frame is reset by the reset spring, and the upper cover of the vacuum packaging machine is opened.

4、 Circulation operation: the double chamber vacuum packaging machine moves the vacuum chamber to another vacuum chamber according to the procedure steps, and enters into the next working cycle. The left and right chambers work alternately and cycle.