专利名称：Packaging machine and method发明人：Gereby, John L.,Gifford, Eric P.,Wehrmann,
Rick S.,Easter, William M.
申请号：EP88311367.2申请日：19881130公开号：EP0319284A2公开日：19890607
专利附图：
摘要：A tabletop machine for automatically loading and sealing flexible containerssuch as plastic bags forming part of a chain of bags. The apparatus includes structure forsupporting a supply (S) of preformed, interconnected bags which are sequentially fed to
a loading station. At the loading station, the bag is inflated by a blower having a shuttercontrolled outlet so that the flow of inflation air is reduced or terminated during feedingand which provides a blast or surge of air to \"pop\" the bag open when the bag arrives ata loading station. A residual air stream maintains inflation of the bag. After loading, aclamping mechanism is activated which applies a substantially increasing clamping forceas a clamp bar (110) nears a heat sealing unit (114) so that should an obstruction or otherobstacle be encountered as the clamping bar moves towards the bag, motion in theclamping bar can be resisted by the obstacle without damage to the obstacle orclamping mechanism. While the bag is clamped to the heat sealing unit, a perforationbreaking mechanism (102) comprising a blade-like member (150) driven into the web pathintermediate a locked web feed roll (62) and the heat sealing unit causes severance ofthe loaded bag along a line of weakness formed by perforations. A relatively small, lowvolume air compressor in combination with a storage tank is used to provide the motiveforce for fluid pressure operated actuators used to operate the clamping bar and theperforation breaking mechanism so that a single source of electrical power is all that isneeded to operate the machine.
申请人：AUTOMATED PACKAGING SYSTEMS, INC.
地址：8400 Darrow Road Twinsburg Ohio 44187 US
国籍：US
代理机构：Lightfoot, Robert Oscar
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