초록 ▼

A multi-orifice T-bar nozzle includes a nozzle body having a mounting plate adapted to connect to the body of a hot melt thermoplastic adhesive dispenser, and an internal adhesive flow path formed by an inlet at the top wall of the nozzle body adapted to receive adhesive from the adhesive dispenser,

A multi-orifice T-bar nozzle includes a nozzle body having a mounting plate adapted to connect to the body of a hot melt thermoplastic adhesive dispenser, and an internal adhesive flow path formed by an inlet at the top wall of the nozzle body adapted to receive adhesive from the adhesive dispenser, a number of outlets at the bottom wall thereof which extrude adhesive beads and a distribution passageway interconnecting the inlet and outlets. The nozzle body progressively tapers from the top, center portion thereof to its extremities, i.e., to the end portions and bottom of the nozzle body, so that the temperature differential between the adhesive entering the inlet of the nozzle body, and the adhesive discharged from the outlets, is minimized.

대표청구항 ▼

The method of discharging a number of extruded beads of heated hot melt adhesive, comprising: introducing heated hot melt adhesive into the inlet of a nozzle body; transmitting the heated hot melt adhesive through said nozzle body to discharge outlets which eject beads of heated hot melt adhesive; p

The method of discharging a number of extruded beads of heated hot melt adhesive, comprising: introducing heated hot melt adhesive into the inlet of a nozzle body; transmitting the heated hot melt adhesive through said nozzle body to discharge outlets which eject beads of heated hot melt adhesive; progressively decreasing the required amount of heat transferred through said nozzle body in a direction from said inlet to said discharge outlets thereof in order to minimize the difference between the temperature of the heated hot melt adhesive at said inlet and the temperature of the heated hot melt adhesive at said discharge outlets. A nozzle for ejecting an extruded bead of heated hot melt adhesive, comprising: a nozzle body having an adhesive inlet adapted to receive heated hot melt adhesive; said nozzle body being formed with an internal distribution passageway connected to said inlet for transmitting heated hot melt adhesive; said nozzle body being formed with at least one discharge outlet connected to said distribution passageway for ejecting an extruded bead of adhesive; said nozzle body including means for progressively requiring less heat to be transferred therethrough in the course of passage of the not melt adhesive from said adhesive inlet to said discharge outlet to minimize the temperature differential between the heated hot melt adhesive at said inlet of said nozzle body and the heated not melt adhesive at said discharge outlet of said nozzle body.