Parison-type bottle blowing machine

Abstract

Abstract A COMPACT BLOW-MOLDING MACHINE AND A NOVEL METHOD FOR PRODUCING HOLLOW ARTICLES OF PLASTIC OR THE LIKE SUCH AS, FOR INSTANCE, PLASTIC BOTTLES HAVING A CONFIGURED OR THREADED NECK SECTION AND A SUBSTANTIALLY SMOOTH SURFACED, GENERALLY VERTICALLY ORIENTED BODY SECTION. THE MACHINE COMPRISES AT LEAST ONE GENERALLY LATERAL DISPOSED BLOW MOLD, WITH THE MOLDS BEING ADAPTED TO RECEIVE VERTICALLY MOVABLE CORE ROD MEANS FOR FORMING A PARISON IN THE PARISON MOLD AND THEN INDEXING THE PARISON AND MOVING THE LATTER VERTICALLY INTO THE BLOW MOLD FOR VETRICALLY BLOWING THE ARTICLE IN THE BLOW MOLD. THE MOLDS COMPRISE A MOVABLE OR EXPANDABLE NECK MOLD PORTION FOR FORMING THE CONFIGURED NECK SECTION OF THE MOLDED ARTICLE, AND A BODY MOLD PORTION FOR FORMING THE BODY SECTION OF THE MOLDED ARTICLE. THE BODY MOLD PORTION OF THE BLOW MOLD ALSO INCLUDES A MOVABLE END WALL DEFINING THE BOTTOM OF THE BODY SECTION OF THE MOLDED ARTICLE AND AFTER BLOWING OR FORMATION OF THE ARTICLE IS ACCOMPLISHED, THE END WALL OF THE BODY MOLD PORTION IS MOVED OUT OF INTERFERING RELATION AND THE NECK MOLD PORTION IS OPENED OR EXPANDED, TO PERMIT EJECTION OF THE MOLDED ARTICLE VERTICALLY OUT OF THE BLOW MOLD. CHUTE MEANS MAY BE PROVIDED MOVABLE INTO COACTION WITH THE OPEN-ENDED BLOW MOLD AFTER MOVEMENT OF THE END WALL OUT OF INTERFERING RELATION, FOR DIRECTING THE MOLDED ARTICLE TO ANY DESIRED LOCATION. INJECTION OF THE HOT PLASTIC MATERIAL INTO THE PARISON MOLD IS ACCOMPLISHED VERTICALLY TO FORM THE AFOREMENTIONED PARISON. THE END RESULT IS A HIGHLY COMPACT BLOW MOLDING MACHINE REQUIRING A MINIMUM OF FLOOR SPACE.

Inventors

• 👤 Ernest P Moslo

Bibliographic Details