Steam Re-moisturizers are increasingly used to reduce edge curl and consist of a series of steam chambers across the web. These chambers typically range from four to eight inches in width and can be single or double sided depending on the application.
Upgrading your steam foil/box to automatic control speeds startup, reduces scrap, and improves Quality Control. When considering an upgrade, a few points need to be considered to maximize value. The best data to be used from the web profile is the raw data instead of the moisture profiles zone averages as they may not match up to the steam re-moisturizer zone chambers when web widths change.
The raw data needs to be parsed to match up to the chamber zones and this means that the profiler must recognize varying web widths via a recipe. The parsed data is then sent to a Programmable Logic Controller (PLC) to control each steam zone?s individual actuator valve. Instead of having operators manually enter this recipe data individually into the profiler when product widths change, it?s preferred to have the HMI (Human Machine Interface) Operator Station communicate to the profiler via Wonderware, Modbus, or other suitable protocol. This reduces the number of operator tasks and speeds product change over.
The Guardian Cross Direction Web Moisture Profile Data should also be stored separately for data archiving, typically through a separate Ethernet link.