| 摘要 |
An electronic-circuit-component mounting machine that includes a plurality of suction nozzles, a component feeder, and a rotary type mounting head which moves with respect to a circuit substrate holding device, is improved. Radial passages 350 and control valve devices 280 are provided in a rotor 92 in correspondence to each of a plurality of suction nozzles 90, while a cutout section 360 that usually connects with a positive pressure source is formed in a portion corresponding to a component mounting position of a non-rotation connection control section 310 fit to a central hole of the rotor 92. In a state in which the rotor 92 rotates and the radial passage 350 corresponding to the suction nozzle 90 in the vicinity of the component mounting position fully connects with the cutout section 360, the control valve device 280 enters a positive pressure source connectable state and thereby a positive pressure is supplied to the suction nozzle 90, and a component is rapidly released. If the radial passage 350 deviates from the cutout section 360, the suction nozzle 90 is cut out from the positive pressure source, and thereby an internal pressure is decreased. During descending of the suction nozzle 90 in the vicinity of a component reception position, a component of a component feeder is prevented from being blown away due to positive pressure. |
