Apparatus for injection molding a multi-piece plastic component, process for the preparation of multi-part plastic components and multi-part plastic component

The invention relates to apparatus for injection molding a multi-part plastic component - at least two outer tool elements (3) and - at least two tool elements between the outer (3) arranged inside the tool elements (4), wherein - the outer tool elements (3) each with an adjacent side of the inner tool members (4a, 4c) respectively form a first cavity (5), into which a plastics molding composition can be introduced via one or more injection units (1) for producing an injection molded item, in which at least a first cavity (5) a foam-forming plastics molding composition can be introduced, wherein - rotating the two inner tool elements (4) and / or are designed to be movable and at least one side (4a, 4b) (of at least the inner tool member (4) which is provided for receiving the foam-forming plastics molding composition, a second cavity 6 ) is providable, which can be filled with a curable polymer composition, and wherein - the device (10) comprises injection-molded plastic parts formed for joining in the first cavities (5) at least one jointing unit (2).