Packaging material anti-falling detection device

A packaging material anti-falling detection device is characterized in that a first electric cylinder is arranged at the left end of a bottom plate, a stand column is arranged at the right end of the bottom plate, a hanging rod is arranged above the bottom plate, a supporting block is arranged at the left end of the hanging rod, a sliding sleeve is arranged on the periphery of the hanging rod, and a second electric cylinder is arranged on the upper side of the hanging rod; rope penetrating rings are arranged on the two sides of the upper portion of the supporting block, and rope sleeves are arranged on the right sides of the rope penetrating rings. The end of the rope sleeve can be pulled through the second electric cylinder to tighten a to-be-detected packaging material, and after the packaging material in the rope sleeve is lifted through the first electric cylinder and the lifting rod, the rope sleeve is controlled to be expanded through the second electric cylinder, so that the packaging material is separ