Apparatus for applying glue to chips, fibers and the like

An apparatus for applying glue to chips and fibers of wood, bagasse and other cellulose containing substances, which includes in combination:

• chamber means having a substantially cylindrical mantle, a drive shaft rotatable within said chamber means and extending in the axial direction of said mantle, said shaft having associated therewith an axially extending glue conveying passage adapted to be connected to a supply of glue, and glue applying tools connected to said drive shaft for rotation therewith and radially outwardly extending from said shaft into the vicinity of the inner surface of said mantle for plowing through a ring of chip material to be formed on said mantle and to have glue applied thereto, each of said tools having a glue conveying conduit communicating with said glue conveying passage and each tool also having a radially outer section provided with at least one glue discharge conduit having at least one glue discharge opening adapted to direct its discharge of glue in the direction toward said mantle and thereby into a ring of chip material to be formed on said mantle and to have glue applied thereto, said at least one glue discharge conduit communicating with the respective pertaining glue conveying conduit, and said at least one glue discharge conduit being provided on the trailing side of the pertaining tool when considering the direction of rotation of the latter, each glue discharge conduit forming an acute angle opening toward said drive shaft with the pertaining glue conveying conduit, said glue applying tools including a head portion in the vicinity of the ring of chip material forming a loosening-up zone therewith, said glue discharge conduit being provided with a plurality of glue discharge openings, and at least one glue discharge opening being spaced from the respective adjacent mantle surface by such a distance as to be located radially inwardly along one side of the ring of chip material to be formed on said mantle.