Method and apparatus for detecting holes in plastic containers

Method and apparatus for detecting holes in plastic containers

A method and an apparatus for monitoring the production of blow moulded plastic containers 20 are disclosed. The apparatus includes a sound detector 24 responsive to a defect sound of pressure fluid escaping from a container being formed in a mould cavity 14 and a columnator 26 to filter the defect...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: MILLER, DONALD WAYNE, HAYWARD, DONALD W, BOGSTAD, DAVID A
Format: Patent
Sprache:eng
Schlagworte:
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:A method and an apparatus for monitoring the production of blow moulded plastic containers 20 are disclosed. The apparatus includes a sound detector 24 responsive to a defect sound of pressure fluid escaping from a container being formed in a mould cavity 14 and a columnator 26 to filter the defect sound from ambient noise. An output signal generated by the sound detector is processed to generate a control signal used to reject a defective container. The open end of the columnator is positioned between 20 DEG and 150 DEG from the preform loading station in a rotary platform 12 blow moulding machine.