Abstract: A paste Pst applied onto a substrate Pb in a predetermined drawing pattern is imaged to acquire the image (step ST1), the outline G of the paste Pst applied onto the substrate Pb is extracted on the basis of the acquired image (step ST2), and the outline length of the paste Pst is calculated from the extracted outline G of the paste Pst (step ST3). The calculated outline length of the paste Pst is compared with a reference range of the outline length determined depending on the drawing pattern of the paste Pst, it is determined whether the outline length of the paste Pst is in the reference range (steps ST4 to ST6), and the application state of the paste is determined (steps ST7 and ST8).

Abstract: A challenge to be met by the present invention is to provide an electronic component mounting apparatus and an electronic component mounting method that enable a reduction in the frequency of operation required with switching of a component type, to thus enhance productivity.

Abstract: A challenge to be met by the present invention is to provide an electronic component mounting apparatus and an electronic component mounting method that enable a reduction in the frequency of operation required with switching of a component type, to thus enhance productivity.

Abstract: In an electronic component mounting apparatus for taking out a chip 6 from a component supply portion 4 to mount to a board 16 held by a board holding portion 10, an image of a supply portion reference mark provided at a mark post 18 of the component supply portion 2 is taken by a second camera 35 moved by a camera moving mechanism, a camera coordinates system is calibrated based on a result of taking the image, thereafter, a position of the chip 6 is recognized by the second camera 35 and the chip 6 is picked up by a mounting head based on a result of the recognition. Thereby, stable pick up accuracy can be ensured by calibrating an aging variation of the coordinates system owing to thermal elongation or contraction of the camera moving mechanism.

Abstract: In an electronic component mounting apparatus for taking out a chip 6 from a component supply portion 4 to mount to a board 16 held by a board holding portion 10, an image of a supply portion reference mark provided at a mark post 18 of the component supply portion 2 is taken by a second camera 35 moved by a camera moving mechanism, a camera coordinates system is calibrated based on a result of taking the image, thereafter, a position of the chip 6 is recognized by the second camera 35 and the chip 6 is picked up by a mounting head based on a result of the recognition. Thereby, stable pick up accuracy can be ensured by calibrating an aging variation of the coordinates system owing to thermal elongation or contraction of the camera moving mechanism.

Abstract: A solenoid valve in which a pulse signal is applied to an electromagnet thereof to eliminate an electric hysteresis. The solenoid valve includes a piston-like valve slidably supported in a cylinder, and at least one aperture, for communicating with a fluid inlet and a fluid outlet, provided in at least one of the valve and cylinder, whereby the flow rate of a fluid may be continuously controlled and the collision between the valve and a valve seat may be avoided.

Abstract: A combustion apparatus which includes tertiary air chambers are formed on both sides of a secondary combustion chamber, with tertiary air being supplied to a combustion flame produced within the secondary combustion chamber. The secondary combustion chamber has a flow channel width greater than a width of an opening in a throttle plate provided on the upstream side thereof, thereby achieving universality with respect to enabling use of various fuel and to increase the capacity of the combustion apparatus while reducing the size thereof.

Abstract: A combustion apparatus comprising a flame nozzle face of the burner being provided in a combustion chamber to face toward an opening of a throttled part provided within a burner frame, a mixed gas being injected into the combustion chamber from the flame nozzle at the flame nozzle face and at the same time a secondary air being supplied from both sides of the flame nozzle face, wherein optimum dimensional ranges of respective parts in combustion section are clarified and complete combustion is ensured thereby for any kind of fuel.