| 摘要 |
PURPOSE:To make possible constant delivery of a minute amount of a viscous material with high accuracy, by arranging a rotary shaft having a screw blade for feeding the viscous material under rotation in a viscous material supply passage. CONSTITUTION:In a constant delivering machine for a viscous material used for mounting electronic parts to a printed circuit board, pulse voltage is applied to a pulse motor 9 to rotate the output shaft 10 of said motor 9 by a definite angle. This rotation over the definite angle is transmitted to a rotary shaft 7 having a screw blade 6 to feed the viscous material present in a supply passage 5 to the side of an emitting port 4 by the amount corresponding to the angle of rotation of the rotary shaft 7. Therefore, a desired amount of the viscous material is emitted from the emitting port 4.
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