| 摘要 |
A vacuum conveyor for moving an object such as corrugated paperboard having at least one relatively planar surface, and the planar surface of the object having a substantial area relatively imperforate to vacuum transmission, and formed from a material having a selected stiffness resisting selected bending including; an elongated vacuum chamber having first openings; an elongated endless belt having a plurality of first perforated openings positioned for vacuum communication with the openings in the vacuum chamber, having a stiffness capable of maintaining a portion of the area of the endless belt; a generally planar laterally and longitudinally extending first belt support having a width less than the width of the endless belt and having first openings in vacuum communication with the vacuum chamber and extending over a substantial elongated portion of the endless belt; a vacuum generator providing a suction in the vacuum chamber; and a drive motor for moving the endless belt longitudinally.
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