CONTINUOUS MANUFACTURE OF EXTRUSION ODD-SHAPED MATERIAL

摘要

PURPOSE: To minimize the defective products by measuring the deviations from the required value with respect to parameters for the cross sectional dimensions of profiles produced from an extrusion head. CONSTITUTION: An extruder comprises two extrusion pipes 4 and 6. The first extrusion pipe feeds solid elastic materials and the second extrusion pipe, elastic materials containing foams. The extruded product T ejected from an extrusion orifice 16 is transferred to a vulcanization station and to a collecting station 26 via a cutting station 24. A rotary encoder 28 outputs an electrical signal to instruct the length of the extruded product T and a control operation unit 30 controls a drive motor 32 to cause the deviation controlled by movable interrupting materials 12 and 14. It is possible to change the data showing a rule of change for parameters displayed on a display in connection thereto so that by operating a keyboard 34, the deviation of the detected value from the standard value may be minimized during the course of said extrusion.