US 12,296,356 B2
Nozzle, adhesive application head, adhesive application apparatus, and method of making diaper
Kiwamu Suzuki, Tokyo (JP); and Masahito Iwasaki, Tokyo (JP)
Assigned to Nordson Corporation, Westlake, OH (US)
Filed by NORDSON CORPORATION, Westlake, OH (US)
Filed on Feb. 16, 2024, as Appl. No. 18/443,582.
Application 18/443,582 is a continuation of application No. 17/914,391, granted, now 11,938,510, previously published as PCT/US2021/024063, filed on Mar. 25, 2021.
Claims priority of application No. 2020055229 (JP), filed on Mar. 26, 2020.
Prior Publication US 2024/0181488 A1, Jun. 6, 2024
Int. Cl. B05C 5/02 (2006.01); A61F 13/15 (2006.01)
CPC B05C 5/0275 (2013.01) [B05C 5/0241 (2013.01); A61F 13/15617 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An adhesive application head comprising:
a nozzle; and
at least one dispenser valve, to which the nozzle is mounted, configured to supply an adhesive to the nozzle,
wherein the nozzle comprises:
a pattern shim having a plurality of tapered first convex portions protruding from an outer edge outwardly;
an adhesive shim having a plurality of tapered second convex portions protruding from an outer edge outwardly and having a shape wider than the tapered first convex portions;
a gas shim having a plurality of tapered third convex portions protruding from an outer edge outwardly and having a shape wider than the tapered first convex portions;
a head body having a top surface, an inclined face obliquely angled relative to the top surface an adhesive inlet, an adhesive outlet, an adhesive distribution groove communicating with the adhesive outlet, an adhesive flow path connecting the adhesive inlet and the adhesive outlet, a gas inlet, a gas outlet, and a gas flow path connecting the gas inlet and the gas outlet;
a face plate having a first gas distribution groove, a second gas distribution groove communicating with the first gas distribution groove, and a third gas distribution groove communicating with the second gas distribution groove; and
fixing means for fixing the head body, the adhesive shim, the pattern shim, the gas shim, and the face plate arranged in order of mention,
wherein the plurality of tapered first convex portions are sandwiched by the plurality of tapered second convex portions and the plurality of tapered third convex portions to form adhesive discharge ports and to form gas discharge ports provided on both sides of each of the adhesive discharge ports, and
wherein adhesive inlet and the gas inlet are formed in the top surface, the adhesive distribution groove and the gas outlet are formed in the inclined surface, and the adhesive flow bath and the gas flow path extend through the head body.