Mehrwellige kontinuierlich arbeitende Mischmaschine für plastifizierbare Massen

摘要

The invention relates to a multishaft continuous operation mixing machine for plastifiable materials with two shafts (1, 15) rotating in the same direction in a housing. Each shaft goes through a cylindrical section (2) of the housing and has an insertion zone and an extraction zone and in between at least one fusion and one mixing zone. Insertion and extraction zones comprise interlocking conveyor worms and mixing elements (8, 18) are placed in the opposing fusion and mixing zones with retaining elements (9, 19), consisting of short worms with a return conveyor thread located downstream. Return conveyor thread forms an apex, which is radially shortened in its turn so that the apex radius is smaller on the insertion side than on the extraction side, continuously increasing between the two in the direction of the extraction side.