Motion control system replaces a mechanical line shaft
15th December, 2005
The switch from mechanical to electronic drive solutions offers a number of benefits for both machine builders and users of the machines. Making the switch, however, involves more than simply removing the mechanical line shaft and adding a few servo axes; it often requires partial or even complete redesign of the machine, since conventional technology increasingly reaches the limits of its capabilities.
Thieme, a company based in Teningen, Germany, has been producing screen printing systems since 1976. The design brief for its new Thieme 5000 XL screen printing machine was as simple as it was ambitious: exceptional production capacity combined with minimum labour overheads.
One of the biggest challenges was the large-scale printing format of up to 2 by 3,05 m. When the engineers set to work they soon realised that with this format many of the components used in previous systems, such as the central drive system and the mechanical line shaft, would simply be too big. It just would not have been possible to integrate them into the machine design properly. After analysing a number of alternatives it became clear that the combination of a motion controller with servo drives would be the best solution.