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1. 发明授权

US5388387A Packaging film feeding and splicing apparatus and method 失效
标题翻译：包装膜送料和拼接设备及方法
公开(公告)号：US5388387A
公开(公告)日：1995-02-14
申请号：US30985
申请日：1993-03-12
申请人： Howell T. McElvy
发明人： Howell T. McElvy
IPC分类号： B65B9/207 , B65H19/18 , B65H21/02 , B65B41/14 , B65B9/20 , B65B41/18
CPC分类号： B65B41/16 , B65B9/207 , B65H19/1836 , B65H19/1873 , B65H21/02 , B65H2301/46018 , B65H2301/46022 , B65H2301/4634 , B65H2511/512 , B65H2513/51 , B65H2553/41 , B65H2557/20 , B65H2801/69 , B65H2801/81
摘要： An assembly and method provide a continuous supply of packaging film to a form, fill and seal packaging machine with two spindles alternately operating as the active spindle to feed the film from one roll at a time. Opposed pneumatic manifolds are operative to splice the tail-end of the film from the active roll to the head-end of the film from the standby roll. The opposed manifolds pivot in opposite directions away from the machine to provide easy access for loading. A programmable controller controls the splicing operation. Valves operated by the controller connect a vacuum source to one of the manifolds to hold the head-end at a splicing station and to the other to maintain tension on the active film after the tail-end leaves the spindle. An end-of-roll detector near the spindle triggers the tensioning function. The width of the manifold is adjustable to accommodate different width film. A photocell detector and encoder in the circuit allow tracking of the tail-end. When it arrives at the splicing station, the appropriate control valve rapidly switches to apply an air blast generated by positive pneumatic pressure to blow the tail-end/head-end together so that adhesive tape pre-applied to the head-end is securely attached to the tail-end to complete the splicing operation. The programmable controller continues to track the splice through the packaging machine to initiate a dry cycle and removal of the splice section.
摘要翻译：组装和方法提供了将包装膜连续供应到形式，填充和密封包装机器，其中两个主轴交替地作为活动主轴操作以一次从一个辊供给膜。相对的气动歧管可操作以将胶片的尾端从主动辊到待机辊的胶片前端。相对的歧管在与机器相反的方向上枢转以提供容易的装载。可编程控制器控制拼接操作。由控制器操作的阀将真空源连接到歧管中的一个，以将头端保持在拼接台处，并将另一端保持在尾端离开主轴之后的活性膜上的张力。主轴附近的卷轴检测器触发张紧功能。歧管的宽度可调，以适应不同宽度的胶片。电路中的光电池检测器和编码器允许跟踪尾端。当其到达拼接站时，适当的控制阀快速切换以施加由正气动压力产生的鼓风，将尾端/头端一起吹起，使得预先施加到头端的胶带牢固地附接到尾端完成拼接操作。可编程控制器继续通过包装机跟踪接头，以启动接合部分的干循环和拆卸。

2. 发明授权

US4563862A Package forming apparatus with combined holding and stripper mechanism 失效
标题翻译：具有组合保持和剥离机构的包装成型装置
公开(公告)号：US4563862A
公开(公告)日：1986-01-14
申请号：US663891
申请日：1984-10-23
申请人： Howell T. McElvy
发明人： Howell T. McElvy
IPC分类号： B65B9/20 , B65B9/213 , B05B9/08
CPC分类号： B65B9/2028 , B29C65/02 , B29C65/7451 , B29C66/1122 , B29C66/4312 , B29C66/7373 , B29C66/81419 , B29C66/81433 , B29C66/8242 , B29C66/83221 , B29C66/8491 , B65B9/213 , B29C65/18 , B29C66/4322 , B29C66/81431 , B29C66/836 , B65B9/2007
摘要： A combined holding and stripper jaw apparatus is provided for use in a form, fill and seal packaging machine. The apparatus includes a pair of opposed holding jaws operated in reciprocating fashion to close and grasp the packaging film tube following the product filling step of the cycle. A stripper jaw is pivotally mounted to the underside of each holding jaw. The stripper jaws are each movable between a ready position adjacent the holding jaws and a strip position for stripping the product in the packaging film tube. Sealing jaws independently mounted between the holding and stripping jaws are separately cycled to close and seal the packaging film into a bag. As the sealing jaws close, a cam surface on the sealing jaws contacts an angled portion of the stripper jaws forcing the stripper jaws downward against spring tension to the strip position. In addition, the holding and stripper jaws include relief features in the edges contacting the packaging film for the venting of trapped air.
摘要翻译：提供了一种用于形式，填充和密封包装机的组合的保持和剥离钳装置。该装置包括一对相对的保持爪，以往复方式操作，以便在循环的产品填充步骤之后闭合并且抓住包装薄膜管。脱模钳枢轴安装在每个夹持爪的下侧。剥离钳爪各自可以在靠近保持夹爪的准备位置和用于剥离包装膜管中的产品的条位置之间移动。独立地安装在夹持和剥离钳口之间的密封钳分别循环以封闭并将包装膜密封成袋。当密封爪关闭时，密封爪上的凸轮表面接触剥离钳的倾斜部分，迫使剥离钳爪向下抵抗弹簧张力到带状位置。此外，保持和剥离钳口包括与包装膜接触的边缘中的浮雕特征，用于排出被捕获的空气。

3. 发明授权

US4620409A Packaging film feed with parallelogram belt support 失效
标题翻译：包装薄膜进料带平行四边形带支撑
公开(公告)号：US4620409A
公开(公告)日：1986-11-04
申请号：US691437
申请日：1985-01-14
申请人： Howell T. McElvy
发明人： Howell T. McElvy
IPC分类号： B65B9/20 , B65B9/213 , B65B9/08 , B65B41/12
CPC分类号： B65B9/2028 , B65B9/213
摘要： 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.
摘要翻译：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。

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