| 摘要 |
PURPOSE:To make it possible to enhance printing quality by uniformizing the thickness of a printed film, in a screen printing press for printing print wiring, by performing the forward and backward driving of a squeegee by a constant velocity linear motion generating mechanism consisting of a cam and a motor. CONSTITUTION:A receiving table 2 on which a print base board 5a is placed is revolved to a printing position and a squeegee 3 is fallen by extending a cylinder 36 to press a screen 31 to the print base board 5a. In this state, a motor 16 with a speed reducer is rotated and a slide block 11 is subjected to linear motion with contant velocity toward a left advance side through the rib cam 9 of a cam 7 and cam followers 10a, 10b. In addition, connecting plate 43 engaged with the engaging groove 13 of the block 11 is also moved and the squeegee 34 is slid and moved while presses the screen 31 to perform pattern printing. Thus constituted two units U1, U2 can be selectively used in a state attached to a revolving drum 20. By this mechanism, the thickness of a printed film is made uniform to enhance printing quality while operational efficiency of printing can be enhanced. |
