In order for the subsequently installed spoiler to match the color of the car perfectly and beautifully, it is necessary to prevent visible defects in the formed parts, which is a very challenging task for sequential injection molding.
Therefore, as a KraussMaffei partner, HRS provides the FlexFlow needle valve system, which has an electric servo motor control system and is fully integrated in the MC6 control system of the MX 1600 injection molding machine. This not only allows FlexFlow The control system is positioned beyond the reach of the machine and makes the operation of the entire system easier.
Unlike hydraulic and pneumatic systems, the needle valve can only occupy the start or end position (open or closed) for a defined stroke.
FlexFlow provides an option to control the position and speed of individual needle valves independently of each other. By opening and closing the needle valve like a contour, pressure peaks are avoided. At the same time, the typical pulsating pressure distribution gives the way to obtain the best consistent pressure curve. As a result, surface flow marks of the component are avoided.
A further advantage is that the controlled pressure allows the clamping force to be reduced by up to 20%, and based on the optimization of the holding pressure, the component weight can be reduced by 5%.
"The MX 1600 illustrates two key trends in lightweight construction and high-end surfaces," concludes Andreas Handschke, product technology manager at KraussMaffei.
Other partners participating in this exhibition are Inglass SpA (providing molds), Modan Caledoni (providing material handling equipment) and Single Temperiertechnik.