Injection unit with a rotating valve for processing meltable materials

Injection unit for the processing of fusible materials, in which at least two melt streams are fed to one or more mould cavities via a channel system in a sequence which changes with time, with the change in time of the feed of the melt streams taking place through temporary opening and closing of the feed channels (6;

• 7) leading to the mould cavity (cavities), and, as means for temporary opening and closing of rotating valve elements, the feed channels (6;
• 7) connect to the pressure channel (20) of the melt alternately one after the other, characterised in that only one valve element is provided for each channel system which leads to the mould cavity (cavities) and consists of at least two feed channels (6;
• 7), and the valve element consists of a hollow spindle (11), which is connected to the pressure channel (20) of the melt and has, in the plane of the feed channels (6;
• 7) leading to the mould cavity (cavities), at least one distribution channel (21) which runs radially outwards and is likewise connected to the pressure channel (20).