Single-shaft multiple extruder - with female threads in housing downstream of filler hole for at least one substance

摘要

An extruder for two or more substances or preparations, with a single shaft is equipped with the corresp. number of filler openings and of helical screw turns. At least one of the screw turns is designed as a female thread in the rotor housing, with the filler opening arranged in the area of the starting turns of the female thread. The single-shaft extruder has an overall length not greater than a normal screw press. It can be charged with each of the substances continuously with any special attachments.