Pin feeding mechanism and pin supplementing device

The invention is suitable for the field of pin supplementing equipment, and discloses a pin feeding mechanism and a pin supplementing device.The pin supplementing device comprises the pin feeding mechanism, the pin feeding mechanism comprises a guide seat, a stock bin assembly and a pin feeding assembly, a pin conveying groove and a first guide groove are formed in the guide seat, and the outlet end of the pin conveying groove communicates with a pin feeding hole of the pin supplementing device; the material bin assembly is connected with the guide seat, pins are stored in the material bin assembly, the material bin assembly is used for conveying the pins into the pin conveying groove, the pin conveying assembly comprises a pin conveying driving part, a first chain wheel, a first chain and a push head, the pin conveying driving part is installed on the guide seat, and the first chain wheel is connected with the first output end of the pin conveying driving part; the first chain is slidably arranged in the fir