| 摘要 |
The ink return circuit of a flexographic printing machine, for receiving ink from the ends of the gutter formed by a stereo transfer roller and a pressure regulating roller, comprises, at each end of the rollers, a vertical deflecting spout for receiving ink from the gutter, each spout having three doctor blades comprising a first blade extending substantially along the line of centers of the rollers and inclined to form an overflow and two lateral blades extending perpendicular to the first blade and to the end faces of the rollers. The spouts are biased against the end faces of the rollers and form part of a set of interchangeable spouts.
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