VIRTUAL 2000
VIRTUAL 2000
Prediction of cold wall thickness
Intelligent software concept
The virtual gauge technology is suitable for all applications, where a fast wall thickness control is required, but where due to the line configuration or the product structure a diameter or wall thickness measurement directly after the extruder is not possible. Reasons could be a lack of space for a hot diameter gauge head or the need for an immediate cooling of the product after the extrusion.
In these cases the intelligent software concept VIRTUAL 2000 is the solution: the measuring device is installed at the end of the cooling trough section. Up to now, the control of the extruder at the end of the line was very slow. The reason was the big delay time, a result of the low line speeds and the big distance between the measuring device and the extruder crosshead. This delay time is eliminated by the VIRTUAL 2000.
Already at the start-up of the line an extruder model of the VIRTUAL 2000 calculates the expected cold wall thickness for a defined core diameter and a predefined material depending on the specified extruder rpm and the line speed. The VIRTUAL 2000 displays the cold wall thickness even before the product reaches the measuring system at the end of the line. Already during the start-up process the VIRTUAL 2000 controls the required extruder rpm, in order to achieve the cold wall thickness, set by the operator. The control and the regulation of the extruder is done under consideration of the line speed, selected by the operator. There is no need for any shrinkage setting.
