| 摘要 |
PROBLEM TO BE SOLVED: To provide a screen printing machine which eliminates overpressure and friction in a meshing part, and ensures smooth rotation of a workpiece, by making a gear meshing with a rack serve as a fixed type. SOLUTION: In this screen printing machine, the gear 23, which is coaxial with a first timing pulley 24 borne in a fixed position, is meshed with the rack 20; a second timing pulley 25 is provided in the same axle 12 which is rotated with a workpiece A holding fixture of a chuck means B; tail ends of arms 26 and 27 are borne on axles of the timing pulleys 25 and 26, respectively; third and fourth timing pulleys 29 and 30 are supported in a juxtaposed state on supporting shafts which are supported on tips of both the arms 26 and 27; and timing belts 31 and 32 are made to run between the timing pulleys 24 and 29 and between the timing pulleys 30 and 25.
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