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    • 7. 发明授权
    • Method of and apparatus for changing the permeability of tubular envelopes of rod-shaped articles of the tobacco processing industry
    • 改变烟草加工业棒状物品管状包络膜渗透性的方法和装置
    • US07279656B2
    • 2007-10-09
    • US10993366
    • 2004-11-22
    • Ralf GrassmelNorbert Lange
    • Ralf GrassmelNorbert Lange
    • B23K26/38A24C1/38
    • B23K26/0676A24C5/606B23K26/0604B23K26/0821B23K26/0823B23K26/382B23K2103/40B23K2103/50
    • The invention relates to a method of and to an apparatus for perforating the tubular wrappers of plain or filter cigarettes and other rod-shaped articles of the tobacco processing industry. The articles are advanced sideways at the periphery of a rotary drum-shaped carrier which cooperates with a device serving to roll them about their longitudinal axes while the wrappers are being perforated by one or more pulsating beams issuing from one or more lasers and passing through a stationary cylinder lens on their way to the facets of a rotating cylindrical mirror which directs the beam(s) across the axis of the carrier and pivots the beam(s) about such axis on its or their way radially outwardly of the carrier toward a first set of stationary deflecting mirrors. These mirrors deflect the beam(s) in at least substantial parallelism with the axis of the carrier at locations radially outwardly of the latter's periphery toward a second set of deflecting mirrors which, in turn, direct the beam(s) substantially radially toward the axis of the carrier and against spherical lenses which focus the beam(s) upon the wrappers of the articles.
    • 本发明涉及一种用于穿孔烟草加工业的普通或过滤嘴香烟和其他棒状物品的管状包装纸的方法和装置。 制品在旋转鼓形载体的周边处侧向推进,该装置与用于在其纵向轴线上滚动的装置配合,同时包装纸由一个或多个从一个或多个激光器发出的脉冲波束穿过并穿过一个 固定圆柱透镜在其通向旋转圆柱形反射镜的方向的方向上,其引导束穿过载体的轴线并使梁围绕该轴线在载体的径向向外朝着第一 固定偏转镜组。 这些反射镜使光束在载体的轴线处至少基本平行的方向上偏转到第二组偏转反射镜,第二组偏转反射镜将射束基本径向地朝着轴线 的载体和对准将光束聚焦在物品的包装纸上的球面透镜。