| 摘要 |
PROBLEM TO BE SOLVED: To effectively prevent the warp of a board with simple constitution by inclining the open end of a threaded hole with respect to the longitudinal direction of a ball screw in a slider having the threaded hole thread-fastened to the ball screw, and sliding in response to the rotation of the ball screw. SOLUTION: This slider is applied to a jet type soldering device that sprays fused solder to the whole back face of a printed board while conveying the printed board through a pair of conveying rails. The slider is provided slidably in a direction intersecting the conveyed direction of the printed board and formed as a polyhedron of approximately hexagonal cross section. A threaded hole 30HA corresponding to a ball screw 16 is provided piercing both side faces, and a through-hole 30HB is formed having the same diameter as a guide shaft 17. That is, the open ends 30HA1, 30HA2, 30HB1, 30HB2 of the threaded hole 30HA and through-hole 30HB have inclined faces, and the fused solder is thereby scraped off from the ball screw 16.
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