The invention discloses a feed lifting device of a roll-dividing
machine, and belongs to the field of devices special for thin film
adhesive tape production. The roll-dividing
machine comprises a
machine base, a pair of wall plates and a carrier roller driving mechanism, wherein the wall plates form a carrier roller horizontal roller path and a carrier roller
crawling roller path respectively, the end, away from the carrier roller
crawling roller path, of the carrier roller horizontal roller path forms a
wall plate blocking shoulder, the space between the
wall plate blocking shoulder and the carrier roller horizontal roller path forms a carrier roller unrolling cavity, and the carrier roller driving mechanism is arranged on the side, facing outwards, of one
wall plate. The feed lifting device comprises a carrier roller lifting power mechanism, a traction transmission shaft, a carrier roller traction mechanism and a carrier roller, wherein the traction transmission shaft is supported between the pair of wall plates, the carrier roller traction mechanism is connected with the traction transmission shaft, and the carrier roller is firstly matched with the carrier roller traction mechanism in the use state and dragged from the carrier roller
crawling roller path to the carrier roller horizontal roller path through the carrier roller traction mechanism and is then matched with the carrier roller driving mechanism after entering the carrier roller unrolling cavity from the carrier roller horizontal roller path. Work intensity is lowered, the overall structure is simple, production space is saved, quality of thin film
adhesive tape is ensured, and safety of online workers is protected.