| 摘要 |
PROBLEM TO BE SOLVED: To provide a feed amount changing method and a device for an electronic parts mounting apparatus, which can eliminate the need for provision of a spring for energizing a feed part, can lighten a dynamic influence during high speed feeding operation, can reduce an energizing force to make the cam follow, and can be easily assembled making the parts durable. SOLUTION: The device includes a first cam 11 for performing a valley operation having an arbitrary operational range, a second cam having the same center and the same crest diameter as the first cam 11 for performing a valley operation with an operational range narrower than the first cam 11 and with a valley diameter larger than that of the first cam, a first lever 12 following the first cam 11, a second lever following the second cam 21, a feed lever 15 coupled with the first lever 12 and a coupling rod 14, a feed part 8 mounted to a linear guide 7, an engagement roller 18 provided in the first lever 12, and an engagement means provided to the second lever. |
