| 摘要 |
<p>PURPOSE:To suck and convey only the lowermost layer by forming the slit section on the periphery of the second cylinder with a triple-tube sucking mechanism with a main suction port bored on at least a base line on the cylinder outer periphery and an auxiliary suction port sucking the tip section of a sheet. CONSTITUTION:The second cylinder 321 formed with a slit-shaped main opening section 321A and an auxiliary opening section 321B smaller than it is inserted into the first cylinder 311 formed with many small-diameter through holes 311A on the outer periphery. The third cylinder 331 formed with an opening section 331A is inserted at the innermost section to constitute a triple-tube sucking mechanism 300. The third cylinder 331 is fixed, and the first and second cylinders are rotatively driven. When the opening section 321B is moved near the opening section 331A, the tip of a sheet is sucked with a small suction force by the suction in the cylinder 33a, then the sheet is sucked with a large suction force by the opening section 321A and delivered. The tip section of the sheet held with a small suction force is separated by the pressure air sent to the tip section, and only the lowermost sheet is conveyed.</p> |
