Melt conveyor for an extrusion tool of an extrusion system, extrusion tool, extrusion system and method for operating an extrusion system of this type

Melt conductor, in particular melt distributor or melt mixer, for an extruding die of an extrusion facility,

• comprising a melt conductor block with a multi-channel system,
• the multi-channel system being arranged with three-dimensional extension inside the melt conductor block and having at least one input and at least one output for polymer melt,
• where between an input and an output fluidically connected to the input, several branchings arranged in series and several levels of sub-branches are formed over several levels of divided melt channels,
• m melt channels of the ath level with xth local cross-sections and n melt channels of the bth level with yth local cross-sections being present,
• wherein n>m if b>a,
• the yth local cross-sections of the melt channels of the bth level being smaller than the xth local cross-sections of the melt channels of the ath level,
• and wherein
• in the designated direction of flow of the polymer melt, the melt channels of the ath level are oriented towards the input and the melt channels of the bth level towards the output such that the melt conductor acts as a melt distributor for a designated melt stream of the polymer melt,
• or
• in the designated direction of flow of the polymer melt, the melt channels of the ath level are oriented towards the output and the melt channels of the bth level towards the input, such that the melt conductor acts as a melt mixer for a designated melt stream of the polymer melt.