FIELD: process engineering.
SUBSTANCE: invention relates to production of hollow plastic profile. Proposed device comprises extruding tool with channel for melt made around extrusion axis. Extruder feeds plastic melt into said channel. Aspirator pumps air through profile inner cavity. Extruder feeds extrusion tool along the extrusion axis centre. Aspirator comprises central suction pipe fitted in said channel for melt and exhaust channels for partial flows abutting on central suction pipe in suction direction and extending from extruding tool inside and outward. Extruding tool comprises spiral distributor. Exhaust channels for partial flows extend in service bores made in spiral distributor.
EFFECT: higher quality of articles.
6 cl, 4 dwg
