| 摘要 |
PURPOSE: To provide a regulating device for the opening of an ink key which can regulate the ink key by a hydraulic cylinder. CONSTITUTION: In a regulating device for the opening of an ink key which can regulate the opening between an ink roller 3 provided in the ink fountain of a printing unit and the ink key 2, a first hydraulic cylinder 22 for sliding the ink key 2 is provided in the ink key 2. A second hydraulic cylinder 23 for a driving source and a third hydraulic cylinder 24 for regulation are provided in the hydraulic circuit of the first hydraulic cylinder 22. |
