Importance

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Abstract

A metal block melt blowing die has paired longitudinal grooves within its bottom surface adjacent a triangular cross section die tip nose. A series of vertical circular bores within the body opening to the grooves support cartridge heaters sized to the bores permitting rod penetration into the bores from either end for removing wedged cartridge heaters. The grooves carry upper and lower air deflector blocks which are spaced from each other to form a tortuous air passage therebetween for insuring turbulence to the attenuating air streams passing therethrough and between laterally and vertically adjustable air plates for varying the air gap between the ends of the air plates at the bottoms of the grooves and the die tip nose and the velocity of the air streams converging at the die tip extrusion holes. A rectangular frame carries unitary diametrically opposed mounting blocks within the rectangular frame with cylindrical air manifolds on respective sides thereof. The die mounts at its ends to the blocks. Tube couplings with corrugated tube portions facilitate connection between the cylindrical air manifolds and air chambers extending along opposite sides of the melt die body to facilitate removal, maintenance and/or replacement of the die body.

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First Claim