A vacuum packaging sealing device

Abstract

The invention discloses a vacuum packing and sealing device. Only when a vacuum pump works till the vacuum degree in a cavity reaches a preset value, can an air cylinder act to perform hot-pressing sealing on the opening end of a packing bag, and thus the vacuum packing and sealing device can ensure that the vacuum degree in the vacuum bag is qualified. Besides, the vacuum packing and sealing device is further provided with a supporting mechanism for making the opening end, placed in the cavity, of the packing bag be obliquely upward, and accordingly the vacuum packing and sealing device can prevent liquid matter in the packing bag from flowing out of the opening end of the packing bag in the vacuum packing process.

Description

technical field [0001] The invention relates to a vacuum packaging sealing device. Background technique [0002] The vacuum packaging and sealing device can extract all the air in the packaging container and seal it, maintaining a high degree of decompression in the bag. The scarcity of air is equivalent to the effect of hypoxia, so that microorganisms have no living conditions, so as to achieve the purpose of fresh food and no rot. [0003] The current vacuum packaging sealing device generally includes a base, a cover plate, a vacuum pump and a sealing mechanism. The cavity is sealed, the suction port of the vacuum pump is connected with the cavity through the pipeline, and the sealing mechanism is set in the cavity. When the vacuum packaging sealing device is used, the packaging bag is placed in the cavity, then the cover is closed, and then the vacuum pump is turned on. The vacuum pump pumps out the air in the concave cavity, and after the vacuum pump works for a period ...

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Problems solved by technology

[0004] However, the above-mentioned vacuum packaging sealing device also has the following disadvantages in use: after the vacuum pump has been working for a period of time (the length of time is set in advance), it is considered that the vacuum degree in the concave cavity is qualified, and then the product is sealed, but this is only applicable In the case that the cavity is completely sealed without air leakage, but in actual use, the cavity is often not completely sealed by the cover plate, and there will always be some gaps that allow air to enter the cavity. After a long period of time, the cavity cannot reach the predetermined vacuum degree. At this time, sealing the packaging bag will make the vacuum degree in the packaging bag unqualified, so that the residual air in the packaging bag will easily cause the food in the packaging bag to rot.

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