Slot nozzle assembly, slot coating gun, shim plate, and method of extruding a foamable melted material in a wide band

摘要

Means of Solution: A slot nozzle assembly (2) for extruding a foamable melted material in a wide band was provided with a plurality of foamable melted material passages (20), lateral distribution flow routes (21, 22) communicating with the plurality of foamable melted material passages, a restriction member (8) disposed inside the lateral distribution flow routes, a slot (23) for discharging foamable melted material, and a converging portion (22a) which communicates with the lateral distribution flow routes and the slot, and whose cross-section area gradually becomes smaller toward the slot. The said slot nozzle assembly further comprising an air block (9) attached to said rear nozzle block (7) forming an air outlet (26a) downstream from said slot (23) to dispense hot air preventing the foam of the foamable melted material extruded from the slot (23) from adhering to the rear nozzle block (7).