Embedded Files
Dematic Sorting Conveyor
Checking shoes on a sorting conveyor for cracks in the shoe pins, missing snap rings, and distance between chain links. Sorter runs at 610 ft/s and contains 2,205 shoes equating to a 48ms inspection window. In this time system must trigger, acquire images, process images, perform analysis, and write results to outputs.
Designed a camera system for completing the inspection with the caveat that there will 189 units at 64 different sites across 28 states and Ontario Canada. A team of people or each site will install the systems. There are also left and right handed conveyors so the camera rig has mirrored parts and is broken into two pieces that can be assembled to form either side. Color coded flags and dots are used to aid in connecting the cables from the electrical cabinet to the rig.
Prototype
MDF prototype created and temporarily mounted.
Color Coded Installation
4 camera system installed with color coded cable conections for ease of assembly.
Slat Sensor and Crack Vision
Sensor picks up primary slat for aligning images with shoe number. Multi-spectrum ring light illuminates plastic web under bearing for picture. Different color shoes require different wavelengths to increase contrast for crack detection.
Vision System.MOVFull Speed
Sorter dunning at 610 ft/min and system is acquiring data. Outputs checked and we are not missing triggers.
Running
System running and acquiring images.
The Inspections
Four cameras showing pin and c-clip, chain stretch, trailing crack, and leading crack inspections.
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