To provide a screen printing machine capable of securing a printing quality by preventing increase in viscosity of a paste inside a squeegee head.
In the screen printing machine for printing a cream solder 5 on a substrate 3 via a pattern hole 12a by moving the squeegee head 13 on a masking plate 12, a horizontally stirring axis 40 for horizontally reciprocating with a cylinder 43 is arranged in a printing space 35 brought in contact with a surface of the masking plate 12 via an aperture part formed on a lower surface for storing the cream solder 5, and the horizontally stirring axis 40 is reciprocated at specific intervals in printing operation. Thereby, a flow in a horizontal direction is given to the cream solder 5, and the cream solder 5 is uniformly stirred by the horizontal flow and a rolling flow due to squeegee action to equalize the viscosity.
MIYAHARA SEIICHI
OTAKE YUJI
FUKAGAWA TAKAHIRO
Next Patent: SCREEN PRINTING MACHINE