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    • 37. 发明授权
    • Packaging film feed with parallelogram belt support
    • 包装薄膜进料带平行四边形带支撑
    • US4620409A
    • 1986-11-04
    • US691437
    • 1985-01-14
    • Howell T. McElvy
    • Howell T. McElvy
    • B65B9/20B65B9/213B65B9/08B65B41/12
    • B65B9/2028B65B9/213
    • A parallelogram feed system for packaging film is provided. The system includes a pair of idler guide rollers bodily movable between a feed position adjacent the packaging film and a rest position away from the packaging film. Drive rollers are provided away from the packaging film. An endless belt extends around the rollers and engages the packaging film between the two guide rollers when in the feed position. The rollers are linked together by four connecting links in the shape of a parallelogram that are pivotally attached to the shafts to which the rollers are rotatably mounted. A pneumatic cylinder moves the guide rollers between the feed and rest positions. The cylinder is attached to the link connecting the two guide rollers by means of a pin slidably received in an elongated slot in the connecting link so as to allow parallelogram shifting movement. In addition, optional air passages may be provided for directing a cushion of air beneath the packaging film adjacent the feed system belts. The air cushion lifts the film from the mandrel of the packaging machine into contact with the belts while reducing dynamic friction between the film and the mandrel. In an alternative embodiment, dual piggyback belts are provided in lieu of a single feed belt, the outer feed belt engaging the film and the inner belt serving as the driver. The surface of the feed belt is matched for maximum affinity to the film and the drive belt exhibits maximum driving capability and extended life.
    • 提供了一种用于包装薄膜的平行四边形进料系统。 该系统包括一对惰轮导辊,其能够在邻近包装薄膜的进给位置和远离包装膜的静止位置之间移动。 远离包装膜设置驱动辊。 环形带围绕辊子延伸并且当处于进​​给位置时与两个导向辊之间的包装薄膜接合。 滚子通过四个连接链条连接在一起,平行四边形的形状可转动地连接到可旋转地安装滚子的轴上。 气动缸在进给位置和静止位置之间移动导辊。 圆柱体通过可滑动地容纳在连接链节中的细长槽中的销连接到连接两个引导辊的连杆上,以允许平行四边形移动。 此外,可以提供可选的空气通道,用于在邻近进料系统带的下方引导包装膜下方的空气缓冲垫。 气垫将薄膜从包装机的心轴上提起,与皮带接触,同时减少薄膜和心轴之间的动态摩擦。 在替代实施例中,提供双重背带以代替单个进给带,外部进给带与薄膜接合,内部带用作驱动器。 进给带的表面与胶片的最大亲和力匹配,驱动带显示出最大的驱动能力和延长使用寿命。
    • 39. 发明授权
    • Method and apparatus for filling reclosable bags
    • 填充可再封闭袋的方法和装置
    • US4514962A
    • 1985-05-07
    • US450243
    • 1982-12-16
    • Steven Ausnit
    • Steven Ausnit
    • B65B39/02B65B43/30B65B43/34B65B43/12B65B9/08
    • B65B39/02B65B43/267B65B43/30B65B43/34
    • Bags supplied in a chain are advanced step by step through a filling station wherein lip flanges on the bag tops are clampingly gripped and pulled apart to separate a reclosable profile fastener, the bag filled and then released from the clamps, and advanced from the filling station. In one arrangement clamp assemblies separate for pulling the flanges apart to open the bag to be filled and a filling nozzle may be inserted down between the separated clamp assemblies. In another embodiment the clamp assemblies include a collapsible and expandable multi-panel funnel assembly through which bag filling contents are delivered into the open bag. Each filled bag is advanced from the filling station and the fastener reclosed after leaving the filling station. The lip flanges may be treated along a transverse separation line to facilitate separation of the filled bag from the next succeeding bag.
    • 在链条中提供的袋子通过加料站逐步进行,其中袋顶部上的唇形凸缘被夹紧地夹紧并拉开以分离可重新闭合的型材紧固件,该袋子被填充并然后从夹具释放并且从加料站 。 在一种布置中,用于将凸缘分开以分开以打开要填充的袋的夹紧组件,并且可以在分离的夹具组件之间向下插入填充喷嘴。 在另一个实施例中,夹具组件包括可折叠和可扩展的多面板漏斗组件,袋填充内容物通过该组合装置输送到开放袋中。 每个填充的袋子从加油站前进,紧固件在离开加油站后重新闭合。 可以沿着横向分隔线处理唇缘凸缘以便于将填充的袋与下一个后续袋分开。