초록 ▼

A viscous material dispense system including a dispense valve having an outlet, a mix tube secured at an upper end thereof to the outlet of the dispense valve, a mixer shroud positioned telescopically over the mix tube and including a conical lower end, and an air shroud fitted telescopically over t

A viscous material dispense system including a dispense valve having an outlet, a mix tube secured at an upper end thereof to the outlet of the dispense valve, a mixer shroud positioned telescopically over the mix tube and including a conical lower end, and an air shroud fitted telescopically over the lower end of the mixer shroud and defining a conical surface positioned in confronting relation to the conical tip portion of the mixer shroud. The air shroud and the lower end of the mixer shroud coact to define a plurality of circumferentially spaced axially extending flutes extending downwardly between the outer surface of the mixer shroud and the inner surface of the air shroud and a plurality of circumferentially spaced radially extending flutes defined between the conical tip portion of the mixer shroud and the conical surface of the air shroud. Each radial flute communicates with a respective axial flute so that air enters proximate the upper end of the air shroud, moves downwardly between the air shroud and the mixer shroud as a series of axially spaced air streams, and thereafter moves radially inwardly between the lower end of the mixer shroud and the air shroud as a plurality of radially inwardly moving air streams which impinge upon a material bead exiting from the lower end of the mix tube to impart a swirling movement to the bead.

대표청구항 ▼

[ What is claimed is:] [1.] A viscous material dispense system comprising:a dispense valve having an outlet;a nozzle assembly including a tubular nozzle member having one end secured to the dispense valve outlet whereby to receive viscous material from the dispense valve for passage through the nozz

[ What is claimed is:] [1.] A viscous material dispense system comprising:a dispense valve having an outlet;a nozzle assembly including a tubular nozzle member having one end secured to the dispense valve outlet whereby to receive viscous material from the dispense valve for passage through the nozzle member, another, free end defining a nozzle tip portion having a conical nozzle surface, and an axially extending main body tubular portion interconnecting said one end and the nozzle tip portion, and dispense means proximate the nozzle tip portion of the nozzle member operative to discharge viscous material in bead form from the nozzle assembly; anda tubular air shroud including a main body portion positioned telescopically over the main body portion of the tubular nozzle member and coacting with the main body portion of the tubular nozzle member to define an axially extending air passage therebetween and an air inlet communicating with the passage, and a tip portion positioned proximate the tip portion of the nozzle member and defining a conical nozzle surface coacting with the conical nozzle surface of the nozzle member tip portion to define a conical air passage therebetween communicating with the axially extending air passage and opening in surrounding relation to the nozzle tip portion of the nozzle member, whereby air introduced at the air inlet may flow through the axially extending air passage and thereafter flow through the conical air passage to impinge on the bead of viscous material exiting the nozzle assembly.