Glass Vial Chip Inspection

Before sending glass vials to be filled, a sensor inspects them for damage as the vials leave an automated liquid filling station. The sensor ensures the top edge of each vial is not chipped or cracked. If a chip or crack is found, the vision sensor rejects the part.

Description

The solution uses a PresencePLUS P4 OMNI, a Standard 16 mm lens, and an On-Axis Diffused LED light. A Geometric Count tool that was used to build the inspection searches the entire image for the pattern of a good vial. The pattern consists of edge outlines of the inside and outside diameters (ID and OD) of the vial opening. A mask is used to remove the reflection from the inside bottom of the vial. If the edge is not continuous due to a chip out, the Geometric Count tool will fail to find a part by using the extra or missing edge options of the Count tool. A Test Tool is created to configure the Pass/Fail criteria based on if the Geometric Count tool results.

PresencePLUS P4 OMNI & OMNI 1.3 Series

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On-Axis Lights

On-axis vision lighting provides even, diffused illumination for flat, reflective surfaces. A beam splitter directs the light rays along the same axis as the camera lens. Reflective surfaces perpendicular to the camera appear bright. Surfaces at an angle to the camera and non-reflective surfaces appear dark.

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