发明名称 Vacuum conveyor
摘要 Apparatus for transferring at least a portion of a running web from a first section of a web making machine to a second section of the web making machine includes at least two pulleys, in which at least one is a driven pulley, a suction box coupled to a vacuum source, an air-pervious endless conveyor belt tensioned over the at least two pulleys to form a conveying run and a return run, and a device for creating a negative pressure at an inner surface of the conveying run. The at least one driven pulley is adapted to drive the endless conveyor belt over the at least two pulleys while the negative pressure propagates through the conveying run. The endless conveyor belt includes an upstream and a downstream end and the endless conveyor belt is pivotable around a pivot axis located in a region of the upstream end. The endless conveyor belt is pivotable to move the portion of the running web between the rope section and the portion is adapted to receive a full width of the running web. Apparatus also includes a control system for moving the downstream end into an area of the web width when a beginning of the at least a portion of the web has entered the rope section.
申请公布号 US6387220(B1) 申请公布日期 2002.05.14
申请号 US20000625307 申请日期 2000.07.25
申请人 VOITH SULZER PAPIERTECHNIK PATENT GMBH 发明人 MOHRSEN LEIF;BROOM ALLAN;KUTAK-PETRIK GEORGE;DREFS WOLFGANG
分类号 B65H20/10;D21G9/00;(IPC1-7):D21F1/48 主分类号 B65H20/10
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