| 摘要 |
PURPOSE:To exactly and easily position print screen by a method in which paired positioning electrodes are fixed to the upside of a stage, a detecting means for electrification between the positioning electrodes is provided, and a pattern to be printed to a base plate is formed. CONSTITUTION:Between two conductive projections 6 and 7 for positioning is in electrically connected state. Only when a positioning pin 2 is contacted with the conductive projection 7 and also with the conductive projection 6, the circuit of power source E is closed and electric current flows in an ammeter M. For this reason, the electric current is detected, and on the basis of the detected result, a detecting means is actuated to display the ending of the positioning. Also, using the detected signal of the electric current the relative movement of a base plate 1 to be printed or a state 9 and a printing screen 8 is prohibited to fix them, and thereby exact positioning can be semi-automatically attained with saving of the labor of workers. |
