Vacuum packaging method and apparatus thereof

Abstract

This invention relates to vacuum sealing pack method and its structure, which is suitable to the vacuum means and comprises the following steps: first fixing the sealing part without cockles on the drawing device by use of gas pump drawer; using the drawer device front contact the inner core to draw the air off in the sealing part; sealing the pack by matching gas tight pressing module and heating sealing device in short time.

Description

technical field [0001] The invention relates to a vacuum encapsulation method and its mechanism, which are applied to an encapsulation body containing a core material, and in particular to a vacuum encapsulation encapsulation body containing a core material by using a direct vacuuming method and cooperating with a special air pumping device. Background technique [0002] Vacuum packaging technology originated in the 1940s. Since the successful application of polyester and polyethylene plastic films in commodity packaging in 1950, related technologies of vacuum packaging have developed rapidly. Vacuum packaging is a packaging method in which items are packed into an airtight container, and the air in the container is pumped out before the container is sealed to make the container in a vacuum state. The purpose is to prevent oxygen and water vapor from entering the container. , leading to rapid growth of microorganisms or oxidative deterioration of items, but also effectively...

AI Technical Summary

Problems solved by technology

[0003] The existing direct vacuum packaging technology is suitable for a small number of various products because there is no limitation on the size of the package. However, the internal and external pressure difference generated during vacuuming will cause wrinkles in the package containing the core material. Not only is it difficult to package, but also the quality is not easy to control. If you use a clamp to fix the package, due to the pressure difference and the force of the clamp, the structure of the gas barrier film will also be destroyed during heat sealing.

To solve the above problems, U.S. Patent No. US6106449 discloses an air pump that can be applied to a vacuum packaging mechanism. After applying anti-leakage oil, the air pump passes through the air hole on the sealing body until it touches the core material in the sealing body , although it can prevent wrinkles caused by air pressure when pumping air, and effectively cut off the outside air from entering the seal, and also provide high vacuum quality, but because of the complicated manufacturing process steps, it not only prolongs the time required for the manufacturing process, but also The quality is not easy to control, and it also causes a lot of inconvenience to the operators

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