| 摘要 |
PROBLEM TO BE SOLVED: To provide a screen printing machine which can use up substantially all of a printing agent contained in a printing agent container and can well scrape up the printing agent from the screen by means of a squeegee. SOLUTION: A push-out plate 230 is fitted into a printing agent chamber 154, which is elongated in the widthwise direction of a screen in the printing agent container 120 and is lowered by means of a pushing-out air cylinder 222 to push out cream-like solder through between a pair of squeegees 142. During printing, a printing head 90 is moved in such a state that the squeegees 142 are in contact with the screen, and the cream-like solder is pressed by the push-out plate 230 and is filled into through-holes of a printed board. Excess cream-like solder is scraped off by the squeegees 142. An inclined face, which is inclined so as to make a printing agent delivery port 160 smaller than the printing agent chamber, is provided on the inner side face, of the squeegees 142, in its part adjacent to the printing agent delivery port 160. COPYRIGHT: (C)2004,JPO
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