| 摘要 |
A gumming device includes a first and a second roller, with horizontal, parallel axes, in contact with each other at a zone of tangency along a common generating line, defining a space between respective cylindrical surfaces just above the zone of tangency. A device for feeding an adhesive substance into the space includes an adhesive distributing element having an end portion located between the rollers at the space over the zone of tangency and having at least one downflow wall for conveying an essentially laminar, continuous flow of adhesive substance to said space. |
