EKSTRUDERINGSMASKIN FOR KONTINUERLIG FREMSTILLING AV PLASTNETT

摘要

A continuous extrusion machine for manufacturing a net like mesh: the machine includes a circular housing having first and second adjacent outlets near its base; one extrusion outlet includes means for extruding longitudinal ribs which means is replaceably fastened at the end of the housing; the other extrusion outlet is shaped to produce transverse ribs and to deposit the transverse ribs on the longitudinal ribs; each outlet communicates with a separate extrusion pressure chamber, whereby two different materials may be extruded; blocking means at the exterior of the housing are shifted between a position which blocks the second outlet and one which opens the second outlet, thereby selectively cutting off or permitting flow out the second outlet to produce spaced transverse ribs.