The utility model discloses a bottom edge sealing device of an eight-edge bag sealing
machine, which relates to the technical field of bottom edge sealing devices of eight-edge bags and comprises a base, the periphery of the base is fixedly connected with a support frame, and the middle of the support frame is movably connected with a conveying mechanism. According to the bottom edge sealing device of the eight-edge bag sealing
machine, the motor, the transmission wheel, the
toothed belt, the fixing plate, the rotating wheel, the connecting rod and the sliding plate are matched, the motor drives the transmission wheel to rotate, power is transmitted to the rotating wheel through the
toothed belt, and when the rotating wheel rotates, the connecting rod converts rotating motion into front-back
linear motion of the sliding plate; and the
hot pressing plate is matched with the fixed pressing plate to carry out hot-pressing edge sealing on the bottom edge of the eight-edge bag. Automatic
reciprocating motion of the
hot pressing plate is achieved, efficient edge sealing operation is completed, the edge sealing efficiency is improved through
automation, the stability and consistency of the edge sealing quality are guaranteed, errors and uncertainty caused by manual operation are reduced, and the production efficiency and the product quality are effectively improved.