Dynamic mixer dispense valve for two-component high-viscosity high-ratio compounds

A dynamic mixer dispense valve for use in combination with metered supplies of a base component and an accelerator component to provide on demand dynamic mixing and dispensing of a mixed compound formed of the base component and accelerator component, said dynamic mixer dispense valve comprising:

• a valve manifold having first and second valve manifold portions defining respective first and second valve manifold passages;
• first and second valve assemblies having first and second material inputs for receiving supplies of base component and accelerator component respectively each operating in an open configuration allowing base component and accelerator component to flow into said first and second valve manifold passages respectively or a closed configuration in which flow of base component and accelerator component is prevented;
• first and second pneumatic valve actuators coupled to said first and second valve assemblies respectively each operating in response to a pneumatic input to configure said first and second valve assemblies into either said open configuration or said closed configuration;
• a cartridge manifold joined to said valve manifold and defining first threads and first and second cartridge manifold passages communicating with said first and second valve manifold passages;
• a cartridge retainer joined to said cartridge manifold defining second threads cooperating with said first threads for joining said cartridge retainer to said cartridge manifold a cartridge retainer interior and a cartridge discharge outlet;
• a cartridge coupled to said cartridge manifold and supported within said cartridge retainer interior defining an interior mixing chamber and a valve seat in communication with said cartridge discharge outlet;
• a mixer impeller defining an upper end having a threaded insert a plurality of mixer blades and a lower end having a valve cone;
• an impeller drive apparatus having a rotational power coupling and an impeller drive shaft, said impeller drive shaft being rotationally supported by said valve manifold and being operatively coupled to having a threaded lower end received within said threaded insert of said mixer impeller to threadably engage and rotate said mixer impeller within said interior mixing chamber;
• and
• a pneumatic mixer actuating apparatus coupled to said impeller drive shaft operating in response to a pneumatic input to move said mixer impeller to either a closed position in which said valve cone is seated within said valve seat to prevent material flow through said cartridge discharge outlet or to move said mixer impeller to an open position in which said valve cone is spaced from said valve seat allowing material flow through said discharge outlet,
• said cartridge retainer and said cartridge being removable by rotation without withdrawal of said mixer impeller relative to said cartridge.