Multi-component extruder method

摘要

A multi-component extruder for producing a multi-component profiled member has at least two individual extruders for extruding a single-component profiled member. Each individual extruder has a housing with a chamber for receiving the extrudable material and an extruder shaft rotatably supported in the chamber. Each individual extruders has an extruder mold nozzle for continuously extruding the single-component profiled member. The individual extruders are equipped with devices for measuring pressure and temperature. A common extruder head has a confluence zone in which the extruder nozzles are arranged to combine the single component profiled members to the multi-component profiled member. A device for measuring the multi-component profiled member is provided. A control device is provided for individually controlling the number of revolutions of each individual extruder according to a preset nominal value based on the nominal characteristic value of the multi-component profiled member, on the extrudable materials, and on the extrusion mold nozzles. The control unit serves to control the actual number of revolutions upon detecting deviations of the measured characteristic value of the multi-component profiled member from a nominal characteristic value as a function of detected deviations of the measured values for temperature and pressure within the individual extruders from nominal pressure values and temperature values.