Scavenging system for injection-molding machine
Abstract
Abstract AN INJECTION-MOLDING MACHINE FOR PRODUCING ARTICLES OF FOAM PLASTIC OR THE LIKE HAS A MOLD CAVITY PROVIDED WITH AN ACCESS OPENING AT THE END OF A SUPPLY CONDUIT FOR THE ADMISSION OF A COMBINATION OF INTERACTING COMPONENTS FROM A MIXING CHAMBER. A SOURCE OF COMPRESSED AIR IS CONNECTED TO THE MIXING CHAMBER VIA AN INLET VALVE WHICH IS OPENED WHEN THE DELIVERY OF COMPONENTS TO THE MIXING CHAMBER IS STOPPED, ANOTHER VALVE UNIT AT THE END OF THE SUPPLY CONDUIT THEN CUT OFF THE ACCESS OPENING, AFTER A DELAY SUFFICIENT TO ALLOW FOR THE DISCHARGE OF RESIDUAL MATERIAL FROM THE MIXING CHAMBER INTO THE CAVITY, AND CONNECTS THAT CONDUIT WITH AN EXHAUST LINE DIRECTLY THE FLOW OF SCAVENGING AIR INTO THE ATMOSPHERE.
Inventors
- 👤 Siegfried Baumgartner
- 👤 Hubert Kindler
- 👤 Rolf Lidl
- 👤 Heinrich Boden
Bibliographic Details
Claims Analysis
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