Bag heat seal quick cooling device

The utility model provides a rapid cooling device for a hot seal of a bag. It includes a hanger mounted on a bag forming automatic packaging machine frame, a mounting base plate is arranged at the lower part of the hanger, a fixed air pipe and an active air pipe are arranged on both sides of the mounting base plate, and an air outlet is opened on the air pipe. A fixed air duct is fixed on a mounting base plate, a rotary shaft is mounted on the mounting base plate, an active air duct is mounted on the rotary shaft, a rotary arm is mounted on the rotary shaft, a cylinder is mounted on the mounting base plate, and a piston rod of the air cylinder is connected with the rotary arm; A vortex cooler is installed in the vertical section of the hanger, and the vortex cooler is connected to the air duct through the air supply duct. The device of the utility model can reduce the heat sealing of the bag from the melting temperature of the bag to the curing temperature in a short time, improve the reliability of the heat sealing of the bag, and reduce the opening rate.