I had that very same Problem on a Pick and Place application, we solved the problem with a control value,
the Suction was turned into a blowing applacation that ran all the time, untill it was time to reverse the action and vacumum up the part.
The outgoing air flow cleaned the surface, the...
Sorry about the time differance, just found this site.
I design and build all types of folding and glueing machines, have not found a project yet that I could not come up with a method to get the job done.
I need more information concerning you project, if you have not already created an...