A dispensing apparatus includes a mounting plate and a dispenser fixed to the mounting plate. The dispenser includes a nozzle valve, a valve plug, an actuating shaft, and a nozzle. The nozzle valve defines a cavity containing a material, and defines an inlet opening on a sidewall thereof to communicate with the cavity. The valve plug is disposed in the cavity. The actuating shaft extends through an end of the nozzle valve, and is connected to the valve plug. The nozzle is disposed at the other end of the nozzle valve facing the actuating shaft. The actuating shaft moves the valve plug away from or closer to the nozzle so as to close or open the inlet opening.