Shrink wrap machine

This invention relates to a shrink wrap machine, which includes a central column and a shrink film synchronous transmission equipment. Said central column is provided with a first column and a second column which are configured to mutual suspension separation for removing the connection between the first column and the second column to make the shrink wrap machine be expand to fit onto the desired diameter range of bottles or cans and increase the range of applications. The delivery wheel of said shrink film synchronous transmission equipment will continue to transfer the shrink film downward and wrap the shrink film on the second column of the central column gradually when the first column of central column is opened the shrink film, and the drawing wheel will individually draw the shrink film downward to wrap the shrink film on the surface of the bottles or cans after the shrink film is cut by the cutter equipment. Then the conveying equipment will convey the bottles or cans forward to the next equipment an