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    Apparatus for helically slitting a continuous tubular film of synthetic thermoplastic material
    1.
    发明授权
    Apparatus for helically slitting a continuous tubular film of synthetic thermoplastic material 失效
    用于螺旋切割合成热塑性材料的连续管状膜的装置

    公开(公告)号：US4809413A

    公开(公告)日：1989-03-07

    申请号：US38170

    申请日：1987-04-14

    申请人： Hartmut Upmeier

    发明人： Hartmut Upmeier

    IPC分类号： B29C37/00 ,  B26D3/16 ,  B29C55/28 ,  D06H7/12 ,  B21D43/02

    CPC分类号： B29C55/285 ,  B26D3/162 ,  D06H7/12 ,  Y10T29/1125 ,  Y10T29/115 ,  Y10T83/219

    摘要： In an apparatus for helically slitting a continuous tubular film of synthetic thermoplastic material, a pair of feed rollers for feeding flattened continuous tubular film to a mandrel are mounted at fixed locations in a main frame. A rotary support mounted in the main frame carries the mandrel which consists of spaced apart low-friction bars disposed in a circular array concentric to the axis of rotation of the rotary support. A cutter is adapted to slit the tubular film as it traverses the mandrel. The axis of rotation of the support is aligned with the nip between the feed rollers approximately at the center of their length. A reversing rod and a deflecting or guide roller are connected to the rotary support for guiding the slit film from the mandrel to a winder. The winder has a winding axis aligned with or intersecting the axis of rotation of the rotary support at a right angle. A spreader for opening out the film is disposed between the feed rollers and the mandrel. The apparatus may be disposed vertically or horizontally.

    摘要翻译： 在用于螺旋地切割合成热塑性材料的连续管状膜的装置中，用于将扁平的连续管状膜馈送到心轴的一对进给辊安装在主框架中的固定位置处。 安装在主框架中的旋转支架承载心轴，其由间隔开的低摩擦杆组成，该摩擦杆设置成与旋转支撑件的旋转轴线同心的圆形阵列。 切割器适于在管状膜穿过心轴时切割。 支撑件的旋转轴线大致在其长度的中心处与进给辊之间的辊隙对齐。 反转杆和偏转导向辊连接到旋转支撑件，用于将切割膜从心轴引导到卷绕机。 卷绕机具有与旋转支架的旋转轴线成直角对准或与旋转支架的旋转轴线相交的卷绕轴。 用于打开胶片的吊具布置在进给辊和心轴之间。 该装置可以垂直或水平设置。

    Apparatus for helical cutting of a flexible tubular sheet of polymeric material
    2.
    发明授权
    Apparatus for helical cutting of a flexible tubular sheet of polymeric material 失效
    用于螺旋切割聚合物材料的柔性管状片的装置

    公开(公告)号：US5361469A

    公开(公告)日：1994-11-08

    申请号：US43465

    申请日：1993-04-02

    申请人： Ole-Bendt Rasmussen

    发明人： Ole-Bendt Rasmussen

    IPC分类号： B26D3/16 ,  B29C69/00 ,  D06H7/12 ,  B32B31/00

    CPC分类号： B29C47/0066 ,  B26D3/162 ,  B29C47/0026 ,  D06H7/12 ,  B29C2793/0027 ,  B29C2793/0063 ,  B29C47/0057 ,  B29C47/0059 ,  Y10T29/1125 ,  Y10T29/115 ,  Y10T29/1181 ,  Y10T82/16983 ,  Y10T83/6473 ,  Y10T83/6478

    摘要： In an apparatus for cutting a tubular film into an elongated strip wherein the tubular film is fed at a given velocity in flattened form from a supply reel to an expansion zone where the film is expanded into a tube, advanced after such expansion along a mandrel, cut into a flat strip while advancing along the mandrel, and the flat strip is removed from the mandrel at an angle to the mandrel axis, the mandrel is hollow and air is introduced into the hollow mandrel under sufficient pressure that the flattened film is expanded into a relatively stiff cylindrical tube that makes a sliding fit with the mandrel and resists deformation while being supported thereon, Improved positive control over the film during its expansion and advance to the mandrel is achieved by means of moving surfaces, e.g. endless belts or roller arrays, that define a diverging expansion zone and are driven at a velocity equal to the velocity at which the film is fed. The supply means can be a reel of flattened film arranged with its axis either parallel to the mandrel axis or generally transverse thereto and in the latter case, the reel is associated with guiding devices which translate around the reel periphery for withdrawing the film therefrom and then guide the flattened film into convergence with the mandrel axis. The supply reel and the guide devices can be mounted in a common unwinding unit which is supported by a bearing ring that is in turn supported by a journal.

    摘要翻译： 在用于将管状膜切割成细长条的设备中，其中管状膜以扁平形式以给定速度从供应卷轴进给到膜扩张成管的膨胀区，在沿着心轴的这种膨胀之后推进， 在沿着芯轴前进的同时切成扁平条带，并且以与心轴轴线成一定角度的方式从心轴移除扁平条，心轴是中空的，并且在足够的压力下将空气引入空心心轴中，使扁平薄膜膨胀成 相对刚性的圆柱形管，其与心轴滑动配合并抵抗变形同时被支撑在其上。通过移动表面，例如通过移动表面实现改进在其膨胀期间对膜的正面控制 环形带或辊阵列，其限定发散的膨胀区并且以等于胶片进给速度的速度被驱动。 供应装置可以是平行于心轴或平行于心轴的扁平薄片卷，而在后一种情况下，卷轴与导向装置相关联，引导装置围绕卷轴周边平移以从其中取出薄膜，然后 引导扁平薄膜与心轴轴线收敛。 供应卷轴和引导装置可以安装在共同的展开单元中，该展开单元由轴承环支撑，轴承环又由轴颈支撑。

    METHOD AND APPARATUS FOR HELICAL CUTTING OF A TUBULAR FILM
    4.
    发明申请
    METHOD AND APPARATUS FOR HELICAL CUTTING OF A TUBULAR FILM 审中-公开
    用于管状薄膜螺旋切割的方法和装置

    公开(公告)号：US20130055537A1

    公开(公告)日：2013-03-07

    申请号：US13511729

    申请日：2010-11-22

    申请人： Ole-Bendt Rasmussen ,  Nikolai Wettergren Rasmussen

    发明人： Ole-Bendt Rasmussen ,  Nikolai Wettergren Rasmussen

    IPC分类号： B26D3/00 ,  B26D1/02

    CPC分类号： B26D3/162 ,  B26D7/0625 ,  B29C48/00 ,  B29C48/001 ,  B29C48/0018 ,  B29C48/0022 ,  B29C48/10 ,  B29C2793/0063 ,  B29L2023/001 ,  Y10T29/1125 ,  Y10T29/1194

    摘要： A method of helically cutting a tubular film of thermoplastic material, in which a film in lay flat form, discharged from a reel, is brought to rotate around the middle axis of the film by means of rotating unwind devices, and while the rotating tube proceeds over the mandrel it is cut to non-tubular form by a knife, the position of which is fixed in relation to the surroundings, and the cut film is taken off from the mandrel, characterized in that the inflated film while being forwarded towards the mandrel or while it passes the upstream end of the mandrel, or both, is supported by driven support means placed around the outside of the tubular film, the movement of the support means being adapted to fit with the combined rotation and forwarding movement of the film.

    摘要翻译： 螺旋切割热塑性材料的管状膜的方法，其中从卷轴排出的平躺形式的膜通过旋转的退绕装置绕膜的中轴旋转，并且当旋转管进行时 在心轴上，通过刀将其切割成非管状，其位置相对于周围环境固定，并且切割的膜从心轴中取出，其特征在于，充气的薄膜同时朝向心轴 或者当其通过心轴的上游端或两者时，由围绕管状膜的外侧设置的被驱动的支撑装置支撑，支撑装置的运动适于与胶片的组合旋转和前进运动配合。

    Apparatus for helically slitting a continuous tubular film of synthetic thermoplastic material
    5.
    再颁专利
    Apparatus for helically slitting a continuous tubular film of synthetic thermoplastic material 失效

    公开(公告)号：USRE34328E

    公开(公告)日：1993-08-03

    申请号：US665484

    申请日：1991-03-06

    申请人： Hartmut Upmeier

    发明人： Hartmut Upmeier

    IPC分类号： B29C37/00 ,  B26D3/16 ,  B29C55/28 ,  D06H7/12

    CPC分类号： B29C55/285 ,  B26D3/162 ,  D06H7/12 ,  Y10T29/1125 ,  Y10T29/115 ,  Y10T83/219

    摘要： In an apparatus for helically slitting a continuous tubular film of synthetic thermoplastic material, a pair of feed rollers for feeding flattened continuous tubular film to a mandrel are mounted at fixed locations in a main frame. A rotary support mounted in the main frame carries the mandrel which consists of spaced apart low-friction bars disposed in a circular array concentric to the axis of rotation of the rotary support. A cutter is adapted to slit the tubular film as it traverses the mandrel. The axis of rotation of the support is aligned with the nip between the feed rollers approximately at the center of their length. A reversing rod and a deflecting or guide roller are connected to the rotary support for guiding the slit film from the mandrel to a winder. The winder has a winding axis aligned with or intersecting the axis of rotation of the rotary support at a right angle. A spreader for opening out the film is disposed between the feed rollers and the mandrel. The apparatus may be disposed vertically or horizontally.