| 摘要 |
<p>PURPOSE:To prevent any damage from occurring even if two sheets are taken up by suction as well as to bring any feeding trouble into nothing, by holding a suction head in readiness at the point that it attracts a topmost stage ceramic substrate, and also standing ready after lowering the whole ceramic substrate inside a stocker. CONSTITUTION:A suction head 7 goes down at an A stroke ranging from an (a) position to a (b) position and it is attracted, by suction, to the ceramic substrate 8 whose height of the topmost stage is kept up at the (b) position by a sensor 11. And, when suction is all over, the suction head 7 holds itself in readiness at the position left intact, and thereby a linear head 10 goes down a little. And, after the topmost stage of the ceramic substrate 8 holds itself in readiness at a (c) position as long as for the duration the ceramic substrate 8 drops, the suction head 7 goes up to the (a) position and shifts to parallel movement. Afterward, the topmost stage of the ceramic substrate 8 returns to the (b) position from the (c) position and stands by the suction head 7. If size between these (b) and (c) positions is properly set, even if two sheets are attracted upward and the second sheet is dropped down, a crack of the substrate 8 may not happen.</p> |
