Locking knob feeding device

The utility model discloses a locking knob feeding device. The locking knob feeding device comprises a knob vibration disc, a knob guide structure connected with an outlet of the knob vibration disc and a knob grabbing mechanism used for grabbing knobs. The knob guide structure comprises a knob guide plate with a knob guide groove and two knob limiting plates installed on the knob guide plate, the gap between the two knob limiting plates is smaller than the width of the knob guide groove, the knob guide groove is communicated with the outlet of the knob vibration disc, and the knob guide groove is communicated with the gap between the two knob limiting plates. The width of the knob guide groove of the knob guide structure is larger than the gap between the two knob limiting plates, and the downward end of the locking knob is large in size and can only enter the knob guide groove. The size of the upward end of the locking knob is small, the locking knob can enter a gap between the two knob limiting plates, it