Ejecting giant articles from injection mold
Abstract
Abstract APPARATUS FOR MOLDING GIANT PLASTIC ARTICLES OF CELLULAR PLASTIC INCLUDES A PLURALITY OF INJECTION NOZZLES HAVING PLUNGERS WHICH ARE GENERALLY KEPT AT THEIR ADVANCED POSITION WITH THE PLUNGER TIPS AT THE NOZZLE TIPS. AFTER THE ARTICLE IS ADEQUATELY COOLED BY THE COLD LIQUID IN HEAT TRANSFER CONDUITS, A TIMING MEANS CONTROLS AN ACTUATING MEANS TO SHIFT A PLURALITY OF THE PLUNGERS OF THE NOZZLES TO A SUPER-ADVANCED POSITION, THEREBY KNOCKING OUT THE GIANT ARTICLE FROM THE FIXED PORTION OF THE MOLD. COMPRESSED GAS JETS FROM ADJACENT THE TIPS OF THE PLUNGERS DESIRABLY ACCELERATE THE ENLARGEMENT OF THE SEPARATION ZONES FOR DEADHERING THE GIANT ARTICLE FROM THE FIXED PORTION OF THE MOLD.
Inventors
- 👤 Walter H Greenberg
- 👤 Walter D Voelker
Bibliographic Details
Claims Analysis
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