Premix nozzle for kold box process

摘要

A foundry mold or core blowing premix nozzle for use in connection with the kold core process. The nozzle contains a mixing chamber that allows thorough mixing to occur during the blowing process. Immediately after the blowing operation the nozzle may be cleaned of any residual sand/catalyst/resin mixture which would ordinarily set up and clog the nozzle if allowed to remain within the nozzle. This cleaning feature is provided by a push through shuttle that sweeps the mixing chamber and moves a turbulence inducing baffle, normally positioned within the chamber, to a position external to the nozzle where it may readily be cleaned.