Fresh-keeping box cover forming die

The utility model provides a preservation box cover forming die which comprises a vertical plate, a top plate is fixedly installed on one side of the top end of the vertical plate, a driving air cylinder is fixedly installed at the bottom end of the top plate, the driving air cylinder is started to push a pressing plate to move downwards, a forming block is made to form preservation box cover raw materials, and meanwhile the forming block is reset after being formed under the action of a reset spring. When preservation box covers of different sizes need to be formed, the forming blocks are taken out by holding the bottom ends of the forming blocks with hands and pulling the plug pins, the corresponding forming blocks are replaced, the plug pins are inserted again to fix the forming blocks, and meanwhile the forming tool is pulled out by pulling the pull grooves in the two sides of the top end of the forming tool. The fresh-keeping box cover raw materials of different sizes can be formed by replacing correspon