The vacuum packaging machine is: after the bag is drawn into a low vacuum, it is automatically sealed immediately. Because of the high vacuum in the bag, the residual air is very small, inhibiting the proliferation of microorganisms such as bacteria, and avoiding oxidation, mildew and spoilage of the article, and at the same time Some soft items, after being packaged in a fully automatic vacuum packaging machine, can reduce the packaging volume for transportation and storage.
The principle of desktop vacuum packaging machine is plastic composite film or plastic aluminum foil composite film as packaging material, for solid, liquid, powder, paste food, grain, fruit, pickles, preserves, chemicals, electronic originals, precision instruments, Rare metal and the like for vacuum packaging or vacuum inflation packaging.
A: The classification of vacuum packaging machine can be divided into desktop vacuum packaging machine, single chamber vacuum packaging machine, double chamber vacuum packaging machine, vertical vacuum packaging machine, household vacuum packaging machine, external vacuum packaging machine, etc. machine.
Two: vacuum packaging machine work and operation process:
1. Vacuum: The vacuum chamber is closed, the vacuum pump works, the vacuum chamber starts to vacuum, the vacuum inside the packaging bag, the vacuum gauge pointer rises, reaches the rated vacuum (controlled by the time relay ISJ), the vacuum pump stops working, and the vacuum stops. While working under vacuum, the two-position three-way solenoid valve IDT works, heat seals the chamber vacuum, and the hot press holder remains in place.
2. Heat sealing: IDT is broken, the outside atmosphere enters the heat sealing chamber through the upper air inlet hole, and the pressure difference between the vacuum chamber and the heat sealing chamber is utilized, and the heat sealing chamber is inflated and expanded to be placed under the hot pressing frame. Move, press the bag mouth; at the same time heat seal the transformer work, start sealing; at the same time, the time relay 2SJ works, after a few seconds, the heat seal is over.
3, return air: 2/2-way solenoid valve 2DT pass, the atmosphere enters the vacuum chamber, the vacuum gauge pointer returns to zero, the hot press 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 and reciprocate.
Three: vacuum packaging machine features:
1. For liquid and high-viscosity materials, high-precision automatic bag making and filling at high temperature. (suitable for external vacuum packaging machine)
2, using the extrusion exhaust packaging method. (internal vacuum packaging machine)
3. The material has strong corrosion resistance and fully meets the requirements of food hygiene and anti-corrosion.
4, the host structure is firm, a variety of text corresponding to the human-machine interface, easy to operate.
5, can be combined with various forms of filling system Zui excellent combination, so as to obtain zui good packaging effect
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