Feeding device of button sewing machine

The utility model discloses a button sewing machine feeding device which comprises a material guiding groove, a material blocking seat is arranged at the front end of the material guiding groove, a material blocking piece capable of swinging is installed on the material blocking seat, the whole material blocking piece is in a V shape, and a first material blocking claw and a second material blocking claw are arranged on the two sides, facing the material guiding groove, of the material blocking piece respectively. The distance between the second material blocking claw and the swing center of the material blocking piece is equal to the sum of the distance between the first material blocking claw and the swing center of the material blocking piece and the outer diameter of the upper buckle, a tension spring is connected to the position, on the outer side of the second material blocking claw, of the material blocking piece, and in the initial state, the first material blocking claw is located in the material gui