Automatic banding device of wrapping bag

The utility model discloses an automatic banding device of wrapping bag, including power device and banding device, be provided with two line section of thick bamboos on the banding device, the lower bottom surface of banding device is provided with first notch, the entrance of first notch is provided with inductive switch, inductive switch and power device are connected, be provided with the thimble on the lateral wall of first notch, it rolls the area to be provided with on another lateral wall of first notch, the thimble is just to rolling the area, the thimble with roll the area and be connected with power device respectively, be provided with first through -hole on the thimble, the pointed end portion of thimble still is provided with the back -off, it is provided with the second through -hole to roll to take, line on two line section of thick bamboos is respectively by first through -hole, the forefront is worn out to be by the second through -hole, the second -line, the below of first notch is provided