An extrusion head for at least one extruder including a first head part
having a first joint and a second head having a second joint wherein the
first head part and the second head part are pivotable with respect to
each other using the respective first joint and second joint. When the
extrusion head is in an operative position, the first head part rests
against a first sealing face and the second head part rests against a
second sealing face. A drive element is connected to the first head part
and the second head part using a connecting element. The first head part
and the second head part are movable using the drive element from a fixed
operative position into an open rest position.