Component mounting condition determination method

A method for determining a mounting condition of a component mounter for use in a production line, the component mounter:

• (i) transporting boards of different types through transportation lanes;
• and (ii) mounting components on the boards, the transportation lanes associating with the boards, and the production line including the component mounter including the transportation lanes aligned parallel to each other, said method comprising
• determining the mounting condition so that a line tact ratio being a ratio among line tacts of the transportation lanes approximates a predetermined ratio, each of the line tacts being a longest mounting time in each of the transportation lanes, and the mounting time indicating a period of time for mounting predetermined components per board,
• wherein the production line includes component mounters including the component mounter,
• wherein said determining the mounting condition includes determining a configuration of the component mounters that intend to mount the components on the boards so that each line tact ratio among transportation lanes included in each of the component mounters approximates the predetermined ratio, the transportation lanes being connected through the component mounters so as to transport an identical type of boards,
• wherein said method further comprises:
• determining allocation of components to be mounted by each of the component mounters, for each of the transportation lanes under the configuration that is determined in said determining the configuration so that a mounting time of each of the component mounters approximates an identical value in each of the transportation lanes;
• and
• obtaining a target tact for each of the transportation lanes, the target tact being a target value of each of the line tacts of the transportation lanes and being determined according to the predetermined ratio,
• wherein said determining the mounting condition further includes determining a count of the component mounters for each of the transportation lanes so that each of the line tacts approximates a corresponding one of first target tacts that are the target tacts initially obtained in said obtaining the target tact, and
• said determining the allocation of the components includes:
• calculating a mounting time necessary for mounting the predetermined components per board by each of the component mounters for each of the transportation lanes, the component mounters having the count determined in said determining the count and including a first component mounter and a second component mounter;
• judging whether or not a difference between the calculated mounting time of the first component mounter and the calculated mounting time of the second component mounter is equal to or larger than a first threshold for each of the transportation lanes, each of the mounting times being calculated in said calculating the mounting time, and the calculated mounting time of the first component mounter being larger than the calculated mounting time of the second component mounter;
• and
• reallocating a part of the predetermined components from the first component mounter to the second component mounter for each of the transportation lanes as a condition for calculating each of the mounting times when the difference is judged to be equal to or larger than the first threshold in said judging.

A method for determining a mounting condition of a component mounter for use in a production line, the component mounter:

• (i) transporting boards of different types through transportation lanes;
• and (ii) mounting components on the boards, the transportation lanes associating with the boards, and the production line including the component mounter including the transportation lanes aligned parallel to each other, said method comprising
• determining the mounting condition so that a line tact ratio being a ratio among line tacts of the transportation lanes approximates a predetermined ratio, each of the line tacts being a longest mounting time in each of the transportation lanes, and the mounting time indicating a period of time for mounting predetermined components per board,
• wherein the transportation lanes are equal to or larger than 3 in each of the component mounters, and
• said determining the mounting condition includes:
• obtaining workload information per board type, the workload information indicating a workload necessary for mounting the components on the boards;
• comparing the workload information between the board types, the workload information being obtained in said obtaining the workload information;
• and
• determining a count of the transportation lanes to be allocated to each board type according to a result of the comparison in said comparing the workload information so that a larger count of the transportation lanes can be allocated to a board type having a higher workload.

A mounting condition determination apparatus that determines a mounting condition of a component mounter for use in a production line, the component mounter:

• (i) transporting boards of different types through transportation lanes;
• and (ii) mounting components on the boards, the transportation lanes associating with the boards, and the production line including the component mounter including the transportation lanes aligned parallel to each other, said apparatus comprising:
• a processor;
• and
• a lane-to-lane balance unit configured to determine the mounting condition so that a line tact ratio being a ratio among line tacts of the transportation lanes approximates a predetermined ratio, each of the line tacts being a longest mounting time in each of the transportation lanes, and the mounting time indicating a period of time for mounting predetermined components per board,
• wherein said lane-to-lane balance unit is configured to (i) determine a configuration of the component mounter that intends to mount the components on the boards so that the line tact ratio approximates the predetermined ratio, and (ii) determine a count of component mounters including the component mounter for each of the transportation lanes so that the line tact ratio approximates the predetermined ratio.

A non-transitory computer-readable recording medium having a program stored thereon which, when loaded into a computer, allows the computer to execute a method for determining a mounting condition of a component mounter for use in a production line, the component mounter:

• (i) transporting boards of different types through transportation lanes;
• and (ii) mounting components on the boards, the transportation lanes associating with the boards, and the production line including the component mounter including the transportation lanes aligned parallel to each other, the method including
• determining the mounting condition so that a line tact ratio being a ratio among line tacts of the transportation lanes approximates a predetermined ratio, each of the line tacts being a longest mounting time in each of the transportation lanes, and the mounting time indicating a period of time for mounting predetermined components per board,
• wherein said determining the mounting condition includes determining a configuration of the component mounter that intends to mount the components on the boards so that the line tact ratio approximates the predetermined ratio, and
• wherein said determining the configuration includes determining a count of component mounters including the component mounter for each of the transportation lanes so that the line tact ratio approximates the predetermined ratio.