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T4000 Case system

Case Inspection System: T4000 Case system
Case Inspection System


 

 

Case Inspection


The T4000 Case system is designed for non-contact, non-destructive, 100% automatic container inspection through a sealed cardboard and/or shrink wrapped case. The system offers the option of acoustic or proximity technology to inspect metal cans or glass jars with metal closures for pressure or vacuum after the containers have been sealed in the case. In many applications, the T4000 Case system will detect defects other than low pressure or vacuum. Some examples are missing containers, containers with missing lids or broken bottles, flat sours and damaged cans.


Acoustic Technology


Acoustic technology works by applying an electromagnetic pulse or "tap" to the top of each container inside the sealed cardboard or shrink wrapped case. The lid of the container vibrates at a natural resonant frequency ("tone") based on the internal pressure or vacuum in the container. A microphone then senses the resultant tone. The system converts the analog signal to digital and then the DSP board analyzes the output and calculates the frequency. Containers outside user-set limits result in the entire case being rejected. The magnetic pulse and acoustic response will work through the cardboard or shrink wrapped cases. Defects include low or no vacuum, low or no pressure, flat sours, dented lids and missing containers in the case.


Proximity Technology


Proximity technology works by measuring the curvature of each container through the sealed case using analog proximity sensors. The curvature for each container in the case is analyzed and assigned a merit value based on the curvature measurements. The system determines whether the container is acceptable or faulty based on userset parameters. Containers outside user-set limits result in the entire case being rejected. The analog sensor will work through the cardboard or shrink wrapped cases. Defects include low or no vacuum, Low or no pressure, swelled cans, pop-buttons, dented seams or missing containers inside the cases.


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