Aluminum foil easy to tear cover, also known as safety cover, is widely used in the field of food packaging. The iron ring has a quick mouth and inner curling design, which does not hurt the hand. The sealing plate is easy to be opened and is 50% lighter than the ordinary easy to pull cover. No dust or debris will fall into the tank after the cover is torn off. The whole machine adopts servo motor drive, pneumatic system, programmable logic control, temperature control and photoelectric system. Automatic completion of the next circle, preheating, punching film, sealing, corner cooling, embossing, counting out the cover.