Nozzle device for molding plastics

Claim 1

A nozzle device for a plastic molding apparatus comprising: a base plate; a plurality of generally parallel support plates secured to said base plate and extending upwardly therefrom; a hot runner block having a cylindrical shape and a fixed axial length, said hot runner block being integrally coupled to each of said support plates in spaced relation with said base plate, the axis of said hot runner block being disposed generally parallel to said base plate and perpendicular to said support plates; a plurality of nozzles projecting radially from one side of said hot runner block, said nozzles being detachable from said hot runner block; a sprue projecting radially from said hot runner block along a side thereof other than said one side; a runner disposed internally of said hot runner block and providing communication between said sprue and each of said plurality of nozzles to permit molten plastic to pass from said sprue to each of said nozzles, said runner extending axially of said hot runner block and being generally centrally disposed therein; means for bringing said nozzles into contact with gates of a mold cavity; a plug disposed at each axial end of said runner of said hot runner block, each of said plugs being removable externally of said hot runner block for cleaning of said runner; and heater bands disposed around exterior radial surfaces of said hot runner block.