Method for producing technical moulded articles just as single- or multi-layered shoe soles made from rubber or thermoplastic materials and apparatus for performing the same

摘要

The injection nozzle (6) is moved into a starting position (A) above the mold cavity (8), opened and moved over the cavity length at variable speed (v1,v2,v3) to a stop position (D). Polymer flow rate is controlled by changing the nozzle outlet cross-section according to the cavity geometry and in the stop position the nozzle is completely closed to cut off the extrudate. When the nozzle moves away the extrudate falls into the cavity. An Independent claim is made for the process equipment whose nozzle (6) moves from one end of the cavity to the other at a controllable speed and has a continuously variable outlet cross-section (9).