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公开(公告)号:US5128076A
公开(公告)日:1992-07-07
申请号:US673285
申请日:1991-03-21
申请人: Anatoly Akselrod , Mark A. Berman , James B. Cysewski , Steven J. Lenius , John W. Louks , David W. Osten , Joseph W. Petrin , Ronald P. Swanson , Eugen Will
发明人: Anatoly Akselrod , Mark A. Berman , James B. Cysewski , Steven J. Lenius , John W. Louks , David W. Osten , Joseph W. Petrin , Ronald P. Swanson , Eugen Will
IPC分类号: B29C47/90 , B29C47/00 , B29C47/20 , B29C47/34 , B29C47/92 , B29C55/28 , B29C69/00 , B29D23/00
CPC分类号: B26D3/162 , B29C47/0014 , B29C47/0026 , B29C47/0066 , B29C47/24 , B29C47/34 , B29C47/902 , B29C47/92 , B29C2793/0027 , B29C2793/0063 , B29C2947/92123 , B29C2947/92133 , B29C2947/92428 , B29C2947/92438 , B29C2947/92514 , B29C2947/9258 , B29C2947/9259 , B29C2947/92619 , B29C2947/92923 , B29C2947/92933 , B29C47/0057 , B29C47/8835 , B29C47/903
摘要: An open tube apparatus and method for continuously producing a rotating elongate strip of material are disclosed. An extrusion die continuously extrudes flowable material to form an open tube with a central longitudinal cavity and a transport mechanism includes a plurality of drive rollers which engage and pull the tube downline. A driver rotates the extrusion die and transport mechanism. A tube cutter, which is offset at an angle with respect to the downline direction and defines the open end of the tube, cuts the tube into a continuous elongate web of the desired width as the tube moves downline. An air seal seals the tube cavity to prevent air from escaping through the open end of the cavity, and a tube pressurizer controls air pressure in the central longitudinal cavity of the tube to expand the tube laterally outwardly.
摘要翻译: 公开了一种用于连续生产旋转细长条材料的开管装置和方法。 挤出模头连续地挤出可流动材料以形成具有中心纵向腔体的开口管,并且输送机构包括多个驱动辊,这些驱动辊接合并拉动管子下管线。 驱动器旋转挤出模具和输送机构。 管切割器相对于下排线方向以一定角度偏移并且限定管的开口端,当管向下移动时,将管切割成具有期望宽度的连续细长腹板。 空气密封件密封管腔以防止空气通过空腔的开口端逸出,并且管式加压器控制管的中心纵向空腔中的空气压力以将管横向向外扩张。
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公开(公告)号:US5124094A
公开(公告)日:1992-06-23
申请号:US673287
申请日:1991-03-21
申请人: Steven J. Lenius , John W. Louks , Ronald P. Swanson , Eugen Will
发明人: Steven J. Lenius , John W. Louks , Ronald P. Swanson , Eugen Will
CPC分类号: B29C47/0026 , B29C47/0014 , B29C47/0066 , B29C47/24 , B29C47/902 , B29C47/92 , B29C2793/0027 , B29C2793/0063 , B29C2947/92123 , B29C2947/92133 , B29C2947/92428 , B29C2947/92438 , B29C2947/92514 , B29C2947/9258 , B29C2947/9259 , B29C2947/92619 , B29C2947/92923 , B29C2947/92933 , B29C47/0057 , B29C47/8835 , B29C47/884 , B29C47/903 , B29C47/908
摘要: A constraining structure for an open tube apparatus for continuously producing a rotating elongate strip of material is disclosed. The constraining structure controls expansion of an extruded blown film tube to a desired outer diameter range after the tube is formed. The constraining structure includes a casing positionable around the tube, and an annular sleeve in the casing having a generally cylindrical central passageway adapted to receive the tube to permit movement of the tube along its longitudinal axis in a downline direction. The casing and the sleeve walls define a gas chamber with pressurized gas separate from the passageway. The gas layer along the inner surface of the sleeve is at a sufficiently large pressure to constrain the tube to the desired outer diameter while the tube solidifies and to prevent the tube from contacting the sleeve.
摘要翻译: 公开了用于连续生产旋转细长条材料的开管装置的约束结构。 约束结构在管形成之后控制挤出的吹塑薄膜管的膨胀到期望的外径范围。 约束结构包括可围绕管定位的壳体,并且壳体中的环形套筒具有大致圆柱形的中心通道,其适于容纳管以允许管沿其纵向轴线沿下行方向移动。 套管和套管壁限定了一个气室,其中加压气体与通道分开。 沿着套筒内表面的气体层具有足够大的压力,以将管子约束到期望的外径,同时管固化并防止管与套筒接触。
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