SQUEEZEE THRUSTING MECHANISM FOR SCREEN PRINTING MACHINE

摘要

PURPOSE:To make it possible to lengthen the life of a printing mask by the adoption of such an arrangement whereby only such a part of a squeezee which is actually required for printing a pattern can be pushed into the mask by setting the amount and length of the part of the squeezee to be pushed in by means of a leaf cam device. CONSTITUTION:In a printing machine for screen printing an electrode pattern or a pattern of adhesive for assembly on a glass substrate 1 to be conveyed in the direction of arrow A by a conveyor belt 2, a printing head 9 having a squeezee 5 arranged above a positioning base 3 which fixes the glass substrate 1 by vacuous suction moves along a leaf cam 7 in the direction of arrow C and pushes the squeezee 5 when a cam roller 8 enters a recessed part 7b of the leaf cam 7. The amount and width of the squeezee to be pushed in can be easily changed by changing 7a and 7b. The adjustment of the impression pressure of the squeezee 5 and that of the gap between the squeezee 5 and a printing mask 6 can be made by means of an adjusting screw 10 and another adjusting screw 11 respectively.