| 摘要 |
<p>A valve opening device for opening valve sacks, with a valve opening duct delimited by duct walls facing one another and extending in a longitudinal direction and a drive means disposed adjacent to the valve opening duct for moving a valve sack in the longitudinal direction in the valve opening duct, wherein at least one duct wall is provided with at least one suction port, which is connected to a suction means to generate a partial vacuum in the valve opening duct relative to an ambience outside the valve opening duct, with which suction means air can be extracted from the valve opening duct.</p> |
