Continuous vacuum packaging machine

Abstract

The invention discloses a continuous vacuum packaging machine which comprises a base, wherein a mounting slot is formed in the top end of the base, a plurality of belt wheels are rotatably connected to the slot walls at the two sides of the mounting slot through embedded bearings, a gear is fixedly mounted at one end of each belt wheel, and a chain is in transmission connection among the gears. Agas tightness detector is mounted at the bottom of the mounting slot, so that gas tightness of vacuum-packaged materials is detected through the gas tightness detector, the quality of packaged products is effectively guaranteed, and materials which are not packaged completely are conveyed out of the mounting slot through a conveyor belt, and thus, secondary packaging is facilitated, the sealing performance and quality of packaged products are effectively guaranteed; a fixed plate is mounted at the bottom end of a fixed rod and a spray head mounted at the bottom end of the fixed plate communicates with a gas pump, so that a hot-melting sealing portion is cooled, rapid cooling forming of the hot-melting sealing portion is facilitated, and the problem that product quality is affected as the sealing portion deforms or opens in the falling process due to the fact that hot melting is not cooled is avoided.

Description

technical field [0001] The invention relates to a packaging machine, in particular to a continuous vacuum packaging machine, which belongs to the technical field of packaging machines. Background technique [0002] The vacuum packaging machine can automatically extract the air in the packaging bag, and complete the sealing process after reaching the predetermined vacuum degree. It can also be filled with nitrogen or other mixed gases, and then the sealing process is completed. Vacuum packaging machines are often used in the food industry, because after vacuum packaging, food can resist oxidation, so as to achieve the purpose of long-term preservation; [0003] There are many types of existing vacuum packaging machines, such as continuous vacuum packaging machines, etc. According to the Chinese patent number "CN208134728U", a continuous vacuum packaging machine is disclosed. The packaging bag is placed between the packaging table and the positioning part, and the two ends a...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a continuous vacuum packaging machine to solve the problem that the current vacuum packaging machine proposed in the above background technology does not perform air tightness detection on the packaging bag after the packaging is completed, and at the same time, the vacuum packaging machine does not detect the airtightness of the packaging bag after heat melting. Cool the sealing part, and the packaging bag will easily cause deformation or opening of the sealing during the falling process, which will affect the quality of the product

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