Injection molding machine, has flow channels in needle valve entering pre=chamber at tangent

摘要

The flow channels (7, 8) in the needle valve (5) enter a pre- chamber (9) in the mould (2) at a tangent so that the so-called turbo effect can be used to flush plastic from the valve region. A injection-molding machine for plastic includes a needle valve for sealing a feed opening (6) for the mold and this valve contains flow channels for the plastic material. The flow channels enter a pre-chamber in the mould at a tangent so that the so-called turbo effect can be used to flush plastic from the valve region.