| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent the solidification of ink even if ink leaks to suppress an increase in the load of an ink pump, in the ink pump provided to the ink feed device arranged to a printing press such as a newspaper rotary press or the like. SOLUTION: In the ink pump equipped with a cylinder 2 having a suction hole and a discharge hole, the plunger 4 reciprocally moved within the cylinder 2 to drive ink from the suction hole to the discharge hole and a motor 21 for driving the plunger 4, a lubricant supply means 30 for supplying lubricant is provided to the projected part, which is projected to the outside from the cylinder 2 on the connection side of the motor 21, of the plunger 4 and the lubricant supplied to the projected part of the plunger 4 by the lubricant supply means 30 is supplied to the slide part of the cylinder with the plunger 4 by the reciprocal movement of the plunger 4.</p> |
