The packaging machine places the vacuum nozzle inside the packaging bag of the item to be packaged.

Packaging equipment, used for printing (spraying) production dates, sealing, shrink wrapping, etc., after product manufacturing, mainly includes: packaging machines, filling machines, sealing machines, coding machines, packing machines, vacuum machines, shrink machines, vacuum packaging machines, weighing packaging machines, etc. The packaging machine uses a colorful touch screen and a stable and reliable dual-shaft high-precision output PLC control. Bag making, metering, filling, sealing, coding, and bag cutting are completed in one step. It adopts independent pneumatic and electrical control, low noise, and stable performance. It uses dual-belt servo drawing and dual servo control, with less resistance, good bag forming, more beautiful appearance, achieving high-precision positioning and accurate size. There are many types of packaging machines and various classification methods. From different perspectives, there are many types: by machine type: liquid packaging machines, powder packaging machines, granule packaging machines, blister packaging machines, sauce packaging machines, electronic combination scale packaging machines, pillow packaging machines; by packaging function: inner packaging, outer packaging machines; by packaging industry: food, daily chemical, textile packaging machines; by packaging station: single-station, multi-station packaging machines; by automation level: semi-automatic, fully automatic packaging machines, etc.

Vacuum packaging machines are divided into horizontal vacuum packaging machines and vertical vacuum packaging machines according to the placement position of the packaged items. The packaged items in horizontal vacuum packaging machines are placed horizontally; in vertical vacuum packaging machines, they are placed vertically. Horizontal vacuum packaging machines are more common in the market. With the continuous improvement of people's living standards, the demand for various convenience foods has also greatly increased, which further drives the rapid development of China's food packaging industry. Vacuum packaging machines are one of the fastest-growing packaging machines and have broad development prospects. There are many types of vacuum packaging machines; below is an introduction to vacuum packaging machines.
Definition

People often call the equipment that completes vacuum packaging by placing the packaged items outside the vacuum chamber a vacuum packaging machine. Principle: The vacuum packaging machine places the suction nozzle inside the packaging bag of the packaged item, evacuates the air, withdraws the suction nozzle, and then completes the sealing. Features: It removes part of the air (oxygen) inside the packaging container, effectively preventing food spoilage and deterioration. Using packaging materials with excellent barrier (airtight) properties and strict sealing technology and requirements can effectively prevent the exchange of packaging contents, thus avoiding food weight loss, flavor loss, and secondary contamination. The gas inside the vacuum packaging container has been removed, accelerating heat transfer, which improves thermal sterilization efficiency and prevents the packaging container from breaking due to gas expansion during heat sterilization.
In the food industry, vacuum packaging is very common. Various cooked products such as chicken legs, ham, sausages; pickled products such as various sauces, bean products, dried fruits, and other foods requiring preservation increasingly use vacuum packaging. Foods vacuum-packaged have a longer shelf life, greatly extending the food's freshness period. When selecting a vacuum packaging machine, one should not simply choose a model based on the model number. Simply put: because the foods (packaged items) produced by each user are different, and packaging sizes vary.

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