Patent ID: 7895736

Claim:
An electronic component mounting apparatus comprising: substrate hold portions for individually positioning and holding a plurality of substrates, a substrate conveyance mechanism for sequentially carrying the plurality of substrates into the substrate hold portions and sequentially carrying mounted substrates out of the substrate hold portions, a mount enable/disable determination device for determining whether or not component mount operation targeted for the substrates can be carried out by individually detecting states of the substrates in the substrate hold portion, a single mount head that takes electronic components out of a component supply portion that supplies a plurality of types of the electronic components, the single mount head conveying and mounting the electronic components on the plurality of substrates, a head movement mechanism for moving the single mount head between the component supply portion and the substrate hold portions, a nozzle removably attached to the single mount head, a nozzle replacement mechanism for attaching, in a replaceable manner, to the mount head the nozzle conforming to the respective electronic components of a plurality of types; and a mount control device that controls the substrate hold portions, the substrate conveyance mechanism, the head movement mechanism, and the nozzle replacement mechanism on the basis of a result of determination made by the mount enable/disable determination device, thereby carrying out component mount operation for causing the mount head to sequentially mount the plurality of types of the electronic components to the plurality of substrates that are held by the substrate hold portions and that have come to be able to undergo component mount operation while replacing the nozzle in conformance to a type of electronic components to be mounted, wherein, following a preceding substrate that has previously been carried in a first substrate hold portion, when a subsequent substrate carried in a second substrate hold portion has come to be able to undergo component mount operation before completion of the component mount operation of the preceding substrate, the mount control device starts a component mount operation of mounting on the subsequent substrate the type of electronic components among the plurality of types of the electronic components that are targets of the component mount operation for the preceding substrate as mount start components for the subsequent substrate.