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1. 发明授权

US4957122A Device for the electrostatic perforation of webs of paper 失效
标题翻译：用于纸幅静电穿孔的装置
公开(公告)号：US4957122A
公开(公告)日：1990-09-18
申请号：US529851
申请日：1983-09-06
申请人： Paolo Maldina , Maurizio Piana , Antonio V. Suzzi
发明人： Paolo Maldina , Maurizio Piana , Antonio V. Suzzi
IPC分类号： B26F1/28
CPC分类号： B26F1/28
摘要： A device for the electrostatic perforation of webs made of paper or other materials, particularly of the webs used in the manufacture of ventilated cigarettes to constitute the cigarette envelope or the junction band of a cigarette with the respective filter, includes two opposite electrode-carrying heads between which the web passes at least one of the heads is provided with a plurality of individual needle-shaped electrodes arranged substantially perpendicularly to the plane of the web. The individual needle-shaped electrodes are mounted so as to be axially slidable in the respective electrode-carrying head and can be pushed toward the opposite by a pushing force and against the action of an opposing force, until their front ends engage a gauged shim placed between the two to establish the right spacing. In addition to this periodical re-setting of the right spacing for the electrodes, the invention also provides an automatic narrowing of the distance between the heads during the operation of the perforating device, in order to compensate for the wear of said electrodes, until a pre-established minimum distance between the heads is reached.
摘要翻译：用于由纸或其它材料，特别是用于制造通风香烟以构成香烟包装或卷烟与其相应过滤器的接合带的网的静电穿孔的装置包括两个相对的电极承载头纸幅通过至少一个头部之间设有多个基本上垂直于纸幅平面设置的单独的针状电极。单独的针状电极被安装成可在相应的电极承载头中可轴向滑动，并且可以通过推力而被推向相反的力并抵抗相反的力的作用，直到它们的前端接合放置的测量垫片两者之间建立正确的间距。除了电极的正确间隔的这种周期性重新设置之外，本发明还提供了在穿孔装置的操作期间头部之间距离的自动变窄，以便补偿所述电极的磨损，直到预先确定了头部之间的最小距离。

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