Abstract: In stacking tray supplying for receiving in a stacked state a plurality of trays that are received in a state in which components to be mounted onto a board are aligned, two tray stages are provided rotationally transferably on a concentric circle. In a state in which one is positioned in a feeding tray placement position and the other is positioned in a standby tray placement position, components are fed from the tray stage positioned in the feeding tray placement position. When a component depletion state occurs, the tray stages are rotationally transferred to switchover the mutual placement positions, by which waste of time required to feed components is reduced.

Abstract: A challenge to be met by the present invention is to feed a carrier tape with superior positional accuracy by means of a simple, inexpensive configuration, thereby enhancing punching accuracy of a component and implementing highly reliable component mounting. A carrier tape feeder that feeds a carrier tape (11), to thus feed and position a component (10) to be punched next to a component pickup section (23) is built from a positioning feed roller (25) including sprocket wheels (61) that feed the carrier tape (11) by causing sprocket holes (13) formed in the carrier tape (11) to engage with teeth (62) and rotating the sprocket wheels and a support wheel section (63) around which there is wound at least a neighborhood of the sprocket holes (13) of the carrier tape (11) in a widthwise direction thereof, to thus support the carrier tape 811); and a rotation device (65) that rotationally drives the positioning feed roller (25).

Abstract: In stacking tray supplying for receiving in a stacked state a plurality of trays that are received in a state in which components to be mounted onto a board are aligned, two tray stages are provided rotationally transferably on a concentric circle. In a state in which one is positioned in a feeding tray placement position and the other is positioned in a standby tray placement position, components are fed from the tray stage positioned in the feeding tray placement position. When a component depletion state occurs, the tray stages are rotationally transferred to switchover the mutual placement positions, by which waste of time required to component feeding is reduced.