Abstract: In a component mounting apparatus, when one of first and second board transfer devices is performing the unloading and loading of boards, a controller operates a component placing device to mount components on a first or second board loaded by the other board transfer device. Thus, it is possible to effectively utilize the time which is taken for the unloading and the loading of either boards, for component mountings on the other board, so that the efficiency in producing boards can be enhanced. Further, since the controller executes a control so that while component mountings are performed on the first boards of M-sheets on the first board transfer device, component mountings are performed on the second boards of N-sheets on the second board transfer device, it is realized to suppress the occurrence of an intermediate stock of either boards where the first boards of the M-sheets and the second boards of the N-sheets are required.

Abstract: The permanent magnet rotating electric machine comprising a stator with a stator coil wound on a stator iron core, a rotor with a plurality of permanent magnets disposed in the circumferential direction in a rotor iron core, which is disposed opposite to the stator iron core of the stator with a predetermined spacing therebetween and is fixed to a shaft, a water-cooling unit disposed around the outer circumference of the stator iron core, and a fan fixed to the shaft on the same side as at least one axial end of the rotor iron core to circulate cooling air in the permanent magnet rotating electric machine; further comprising ventilation paths, through which the cooling air flows, formed around the outer circumference of the water-cooling unit; wherein after the cooling air has been circulated by the fan in the machine for cooling, the cooling air is led to the ventilation paths to perform heat exchange between the cooling air flowing in the ventilation paths and the water-cooling unit, after which the cooling

Abstract: A component mounting apparatus including an exchangeable suction nozzle is easily supplied with another suction nozzle to replace the former suction nozzle. A plurality of mounting modules 12 having respective identical constructions are arranged adjacent to each other such that the mounting modules are oriented in a same direction, so that the mounting modules 12 constitute a mounting-apparatus line. When the mounting-apparatus line is reset, a mounting head 40 is used to exchange automatically suction nozzles 158 between a nozzle stocker 330 and a nozzle carrier plate 400, so that a current arrangement of suction nozzles on the nozzle stocker 330 is changed to a new arrangement of suction nozzles for the next component mounting operation. The nozzle carrier plate 400 can hold a plurality of sorts of suction nozzles 158 that are needed for the next component mounting operation but are not held by the mounting modules 12.

Abstract: A component mounting apparatus including an exchangeable suction nozzle is easily supplied with another suction nozzle to replace the former suction nozzle. A plurality of mounting modules 12 having respective identical constructions are arranged adjacent to each other such that the mounting modules are oriented in a same direction, so that the mounting modules 12 constitute a mounting-apparatus line. When the mounting-apparatus line is reset, a mounting head 40 is used to exchange automatically suction nozzles 158 between a nozzle stocker 330 and a nozzle carrier plate 400, so that a current arrangement of suction nozzles on the nozzle stocker 330 is changed to a new arrangement of suction nozzles for the next component mounting operation. The nozzle carrier plate 400 can hold a plurality of sorts of suction nozzles 158 that are needed for the next component mounting operation but are not held by the mounting modules 12.

Abstract: A stencil stamp is provided with a plurality of individually replaceable stencil stamp blocks. The stencil stamp is capable of stamping a multicolor pattern by a single stamping action. The stencil stamp comprises a handgrip to be gripped by the user's hand, a stamping unit, which is fixedly held by a stencil stamp block holding member on the handgrip, and a skirt, which covers the stamping unit for protection. The stamping unit comprises a plurality of stencil stamp blocks, each having a stamping part for forming a particular pattern. The plurality of stencil stamp blocks may be provided with ink-bearing members impregnated with inks of different colors to enable multicolor stamping by a single stamping action. The stencil stamp blocks can be individually removed from the stencil stamp block holding member, and can be used in desired combinations to create different patterns.