Board conveyance device 92 loads board K to a mounting position, fixes board K in position, and unloads board K. Board conveyance device 92 is configured from conveyance unit 925 and backup unit 926. Conveyance unit 925 is configured from items such as pair of guide rails 921 and 922, and a pair of conveyor belts. The pair of guide rails 921 and 922 are assembled to base 91 parallel to each other and crossing a central upper surface of base 91. The pair of conveyor belts provided on the insides facing each other of the pair of guide rails 921 and 922 revolve with both edges of board K loaded on the conveyor belts, such that board K is loaded and unloaded to and from amounting position set in a center section of base 91. Backup unit 926 is arranged below the mounting position, and lifts board K and clamps it in a horizontal state.

Component supply device 1 is configured such that multiple feeders 10 are arranged in a row on approximately rectangular-shaped pallet member 1A that is removably attached to an upper surface of base 91. There are various sizes and types of tape feeders 10, with each having a different consumption current. Here, tape feeder 10 is assumed to be an auto loading feeder. Tape feeder 10 is configured from items such as main body section 11, and two supply reels, 18 and 19, arranged on a rear section of main body section 11. Wound on each supply reel 18 and 19 is carrier tape in which many electronic components are taped in a single row. The carrier tape is fed by a specified pitch each time to expose the stored electronic components and supply them consecutively.