Patent ID: 6746710
Filing Date: 2004-06-08
Classification: B23K,B41F,H05K

Abstract:
A screen printing head for applying a pasty product to a printing screen, comprising:a main body; wiper blades attached to the main body for contacting a printing screen; a first chamber providing a reservoir for containing a supply of pasty product, the first chamber being defined at least in part by the main body and including at least one outlet opening through which pasty product in use is forced under pressure; a second chamber in fluid communication with the at least one outlet opening, the second chamber being defined in part by the main body and the wiper blades and being in use in communication with the printing screen; and a flow director disposed in the second chamber and configured to cause a first, circulatory flow of pasty product contained therein which passes over the surface of the printing screen, and a second flow of pasty product towards the printing screen which acts to force pasty product of the first, circulatory flow towards the printing screen and into apertures therein.