Lube applicator for die cast machine plunger

A dry graphite lube applicator for a die cast machine having an injection sleeve, the dry graphite lube applicator comprising:

• a hopper holding dry graphite lube;
• a feeding chamber in gravity communication with the hopper;
• a feeding turn screw disposed within the feeding chamber having a plurality of spiraling turns disposed around the circumference of the turn screw, wherein the plurality of spiraling turns of the feeding turn screw is in a tight rotatable relationship with the feeding chamber;
• a controlling device coupled to the turn screw to control extent of the turning thereof to accurately estimate an amount of dry graphite lube to be deposited based on the number of turns of the turn screw and the speed of the turns;
• a dispensing chamber in communication with the feeding chamber, wherein the feeding screw deposits the accurately estimated amount of dry graphite lube;
• and
• an air compressor source in pressure communication with the dispensing chamber to deliver the accurately estimated amount of dry graphite lube to the injection sleeve of the die cast machine.

A dry graphite lube applicator for a die cast machine having an injection sleeve, the dry graphite lube applicator comprising:

• a hopper holding dry graphite lube;
• a feeding chamber in gravity communication with the hopper;
• a feeding turn screw disposed within the feeding chamber having a plurality of spiraling turns disposed around the circumference of the turn screw, wherein the plurality of spiraling turns of the feeding turn screw is in a tight rotatable relationship with the feeding chamber;
• a controlling device coupled to the turn screw to control extent of the turning thereof to accurately estimate an amount of dry graphite lube to be deposited based on the number of turns of the turn screw and the speed of the turns;
• a dispensing chamber in communication with the feeding chamber, wherein the feeding screw deposits the accurately estimated amount of dry graphite lube;
• and
• an air compressor source in pressure communication with the dispensing chamber to deliver the accurately estimated amount of dry graphite lube to the injection sleeve of the die cast machine;
• and
• a sweeper mechanism utilizing the air compressor source to clear stray dry graphite lube from inside the dry graphite lube applicator and the injection sleeve of the die cast machine.

A dry graphite lube applicator for a die cast machine having an injection sleeve, the dry graphite lube applicator comprising:

• a hopper holding dry graphite lube;
• a feeding chamber in gravity communication with the hopper;
• a feeding turn screw disposed within the feeding chamber having a plurality of spiraling turns disposed around the circumference of the turn screw, wherein each turn holds a predetermined amount of dry graphite lube;
• a driving device connected to the feeding turn screw to rotate the feeding turn screw within the feeding chamber;
• a dispensing chamber in communication with the feeding chamber, wherein the feeding screw deposits the predetermined amount of dry graphite lube;
• an air compressor source in pressure communication with the dispensing chamber to deliver the predetermined amount of dry graphite lube to the injection sleeve of the die cast machine;
• and
• a sweeper mechanism that includes a sweeper chamber in communication with the dispensing chamber, a plunger slidably engaged within the sweeper chamber having an open and closed position, and a cap means attached to one end of the plunger, wherein the cap means closes off the feeding chamber from the dispensing chamber in the closed position and allows a compressed sweeping air to travel through the dispensing chamber into the injection sleeve to clear accumulated dry graphite lube in the injection sleeve, further wherein the cap means closes off the sweeper chamber in the open position to allow a compressed dispensing air to deliver the predetermined amount of dry graphite lube to the injection sleeve.

A dry graphite lube applicator for a die cast machine having an injection sleeve, the dry graphite lube applicator comprising:

• a hopper holding dry graphite lube;
• a feeding chamber in gravity communication with the hopper;
• a feeding turn screw disposed within the feeding chamber having a plurality of spiraling turns disposed around the circumference of the turn screw, wherein the plurality of spiraling turns of the feeding turn screw is in a tight rotatable relationship with the feeding chamber;
• a dispensing chamber in communication with the feeding chamber, wherein the feeding screw deposits the dry graphite lube;
• and
• an air compressor source in pressure communication with the dispensing chamber to deliver the dry graphite lube to the injection sleeve of the die cast machine;
• and
• a sweeper mechanism that includes a sweeper chamber in communication with the dispensing chamber, a plunger slidably engaged within the sweeper chamber having an open and closed position, and a cap means attached to one end of the plunger, wherein the cap means closes off the feeding chamber from the dispensing chamber in the closed position and allows compressed air to travel through the dispensing chamber into the injection sleeve to clear stray dry graphite lube, further wherein the cap means closes off the sweeper chamber in the open position to allow compressed air to deliver the dry graphite lube to the injection sleeve.