Engel e-flomo mould temperature control improves process stability

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  • Mould temperature control has significant influence on productivity
  • Engel e-flomo allows the monitoring of supply water temperature throughout the entire production run
  • From process monitoring to process control

The trend towards complete process monitoring has now reached mould temperature control. Water manifolds are thus increasingly being replaced by state-of-art flow monitoring systems, such as Engel flomo. And the Engel e-flomo flow control system does not just monitor the relevant parameters, but keeps them also constant throughout the production run.

Mould temperature: from monitoring to process control

Mould temperature control has a significant influence on productivity of the manufacturing process and on the quality of the moulded parts, but despite this, it did not attract much attention for a long time. Engel prompted a rethink when it developed Engel flomo in 2010. The injection moulding machine-integrated and manually adjustable water manifold system improves process reliability. For Fakuma 2014, Engel has taken the step from process monitoring to process control. The newly developed Engel e-flomo also features electrical control valves, which allow the flow rates to be adjusted and controlled in a fully-automated process.

Engel flow control system

The Engel e-flomo flow control system has electric control valves. It supports fully-automated adjustment of flow rates, keeping them constant even if water pressure varies (Source: Engel)

Automatically compensating for fluctuations in the water quantity

The available volume of water can fluctuate during production, for example, if filters clog, or system pressure changes are caused by different levels of load on the production equipment. In a production environment, these influences often go unnoticed for a longer period of time, resulting, in the worst case, in the production of scrap. Even the manually adjustable Engel flomo water manifold can prevent this thanks to its monitoring feature. The new system does not just monitor, it automatically adjusts the settings. If the system notices a flow rate dropping in one of the flow circuits, the corresponding control valve is automatically opened to a position where the desired target value is reached again.

Keeping the temperature under control

The temperature control system is responsible for keeping a constant media temperature. Since a certain amount of heat loss is typical between the temperature control unit and the mould, the Engel e-flomo also monitors the supply water temperature throughout the entire production run. At the same time, other parameters can be included for monitoring, such as the return temperature or the temperature difference between the supply and return sides. The system is designed for water temperatures up to 120 °C. Shut-off valves in the central supply and return lines allow for fast and easy activation and deactivation of the individual manifold units.



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