Marking head for marking curved surfaces - has row of ink nozzles mounted on flexible strip

摘要

The marking head for marking articles, with curved external surfaces such as barrels, or pipes, and especially articles with porous surfaces such as concrete pipes, has a row of ink nozzles mounted on a strip of flexible material (11). Each nozzle is connected to a supply of ink with the ink flow controlled by a computer. The head is provided with controls vary the curvature of the flexible strip, so that each nozzle is aligned at right angles to the curved surface. The head is moved along the article and the required marking is formed by spots of ink placed in the appropriate position. USE - Marking of curved surfaces.