Extruder head with e.g. three settings - has die and intermediate feed tool which can both be rotated to align their angled flow bores differently with that supplied from extruder

摘要

A head for extruding plastic tubing, and particularly hollow non-linear types, by means of hollow tools, has a die, a part of the die parallel to its axis but which can rotate, and a flow bore at an angle to the axis; whereby at least two hollow tools on a straight line can be set by simply turning the part concerned of the die. The head has at least one moving or turning bored member; by turning or adjusting this member and/or the part concerned the outlet die can be continuously or intermittently disposed in line so that at least three hollow tools can be set in position, straight lines running through the centres of the hollow tool cross-sections being parallel to the lines of setting. ADVANTAGE - The layout makes it possible to align at least three hollow tools with the outlet die. This is achieved without complicated arrangements.