SCREEN PRINTING APPARATUS AND SCREEN PRINTING METHOD

摘要

In a screen printing apparatus and method for using a squeegee to press printing paste on a screen while moving the squeegee in the horizontal direction in order to apply the paste to a circuit board for printing, accurate printing with excellent printed shapes is provided by allowing the squeegee to flexibly fit the circuit regardless of its slope, swell, or warp to achieve balanced printing at a low specified pressure. To accomplish this, squeegees (26a and 26b) are elevated by an air cylinder (27) that can be rotated at the longitudinal center of the squeegees (26a and 26b) and that cancels their weight, and are then pressed downward by air cylinders (35 and 36) located symmetrically about the center in order to press the top surface of a screen (23).