Patent ID: 8079140

Claim:
A component mounting condition determining method performed by a computer including a central processing unit and a memory, said component mounting condition determined method for determining a component mounting condition used for a component mounter which includes a plurality of mounting heads that are located on opposite sides of a pair of rails for transporting a board and that alternately mount components onto the board, wherein the pair of rails includes a fixed rail and a movable rail, and said component mounting condition determining method comprising: calculating a movement distance by which each of the mounting heads moves between a component supply unit that supplies the components and the board, based on a length of the board in a Y-axis direction perpendicular to a transportation direction of the board or a position of the movable rail in the Y-axis direction; and determining a component mounting condition so as to (i) approximately equalize operating times of the mounting heads by reducing a partial operating time of a first of the mounting heads which is determined, in said calculating, to move a longer distance between the component supply unit and the board than a second of the mounting heads, and (ii) assign a first task to the second mounting head, which is determined, in said calculating, to move a shortest distance between the component supply unit and the board, the partial operating time to be reduced being time that the first mounting head takes for an operation other than movement of the first mounting head between the component supply unit and the board, and the first task being a task of a plurality of tasks that is assigned first, each of the tasks being defined as an iteration of sequential operations of pickup, movement, and mounting of a component performed by a corresponding one of the mounting heads.