Plasma sterilization packaging device for agricultural products and using method thereof

A plasma sterilization packaging device for agricultural products, comprising a feeding unit and a packaging unit arranged on a side of the feeding unit;

• wherein the packaging unit comprises a first conveyor belt, an encapsulation conveyor belt and a second conveyor belt, wherein a lower side of the first conveyor belt is provided with a roll film, an upper side of the encapsulation conveyor belt is provided with a roll film adjustment device and an upper sealing device, and a cutting sealing device is arranged between the encapsulation conveyor belt and the second conveyor belt;
• the upper sealing device is fixedly connected to both sides of the encapsulation conveyor belt through a first mounting frame, a lower side of the first mounting frame is provided with a hot pressing roller, the hot pressing roller is provided with a sealing positioning wheel on a side adjacent to the roll film, and a side of the sealing positioning wheel is connected to a plasma processing unit;
• the cutting sealing device comprises a second mounting frame, a through hole is arranged on the second mounting frame, and the through hole is sleeved in a middle part of the second conveyor belt and encapsulation conveyor belt, and upper and lower parts of the through hole are connected to a guillotine through a push rod;
• and
• both sides of the guillotine are hot pressing blocks, a middle of the guillotine is a cutting knife, and a heating sheet is arranged inside each of the hot pressing blocks;
• when the plasma sterilization packaging device is used,
• the roll film is pulled to a gap between the first conveyor belt and the encapsulation conveyor belt;
• two sides of the roll film are pulled to pass through the roll film adjustment device, the roll film is bent through the roll film adjustment device to form a curved roll film;
• the curved roll film is pulled so that both sides of the curved roll film overlap;
• an overlapped part of the curved roll film is passed through the sealing positioning wheel and the hot pressing roller in sequence, and the overlapping part of the curved roll film is hot-pressed through the hot pressing roller to form a cylindrical shape with an opening at each of both ends;
• the plasma processing unit is opened, an output voltage of which is set between 20-30 kV and an output frequency of which is set between 5-20 kHz, the first conveyor belt, the encapsulation conveyor belt and the second conveyor belt are opened at same time, and a production rhythm is set in 20-30 s;
• weighed packaging materials to be sterilized is put into a cavity of the feeding unit;
• and
• the weighed packaging materials to be sterilized is fed into the curved roll film filled with a plasma gas through the first conveyor belt, the weighed packaging materials to be sterilized is sealed in the curved roll film filled with the plasma gas through the cutting sealing device under an action of the guillotine of the upper part and the guillotine of the lower part to form a single independent sealed bag.