Food box sealing machine

A food box sealing machine includes a fuselage, a sealing device, a sealing tray and a conveying and positioning mechanism. At least one positioning template is arranged on the transmission and positioning mechanism. The sealing device includes a pressure plate and a heat sealing head, characterized in that the sealing bracket is characterized by the following: A plurality of lower suction holes are arranged on the plate, and a vacuum device is arranged below the sealing plate. Evacuation pipes of the vacuum device are respectively connected with the lower suction hole of the sealing plate. Multiple positioning plates and separate suction pipes are arranged on the positioning plate. An air vent with an upper vent hole. The positioning template is provided with an air extraction tank, each upper air extraction hole is arranged in the air extraction tank, and the sealing tray is provided with an annular groove, and each lower air extraction hole is arranged in the annular tank. Sealing trays are equipped with silicone pads or rubber pads. The transfer positioning mechanism may be a chain conveyor belt or a belt conveyor belt. Compared with the prior art, the utility model has the beneficial effect that the food can be kept fresh for a longer time because of the vacuum device.