Page 79 - MetalForming October 2014
P. 79
Williams prefers to use reflective photo- electric sensors (two shown, flanking a short-feed sensor in the middle) for detecting part ejection. His choice of bright yellow mounts and cabling is meant to alert others in the plant that the area has sensors within it and to exercise caution when working nearby.
manager, Ed Steinebach, the firm designed and constructed a state-of- the-art sensor-testing laboratory for Williams. The lab allows him to perform a variety of application tests required to ensure the proper implementation of sensors within tooling and assembly
processes. Williams has all of the nec- essary equipment needed to filter through the various sensor options on his test bench. Precision positioning equipment helps determine the exact location where a given sensor must be mounted within a die in order for it to properly and repeatedly detect its tar- get. That target can be a part or a tool- ing component.
Williams also uses the test bench to verify that the sensors will actually function within the die without having to mount them first in the tooling, and then experiment out on the production floor. This sensing-simulation process provides a way to investigate and inno- vate away from the actual tooling. Thus, when Williams is ready to actually mount the sensors in the dies he already has a very good level of confi- dence that the sensors will work in the pressroom, avoiding nuisance stops due to improper sensor selection and testing.
Williams uses channeling and cover plates to protect sensor cables.
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