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公开(公告)号：US4642084A
公开(公告)日：1987-02-10
申请号：US793851
申请日：1985-11-01
CPC分类号： B31B23/00 , B65D33/00 , B65D83/0847 , B31B2219/028 , B31B2237/10 , Y10T83/4847 , Y10T83/9384
摘要： A machine for making plastic bags, such as trash or garbage bags, includes a rotary sealing drum of variable diameter, the drum including one or more sealing bars for cross-sealing a flattened plastic film tube passing through the machine. A blanket tensioning system surrounds the drum and is adjustable to compensate for different drum diameters. The sealed film passes over a chill roll after leaving the drum-blanket assembly and is drawn over folding boards by pull rolls. The sealed and folded film is then perforated by a fly knife and is preferably also cut on the sides to produce a connected series of bags which may easily be separated from one another to make the bags suitable for easy dispensing packages. A variator assembly may also be provided to insure a proper skirt length between the cut-perforation and the bag seal.
摘要翻译： 用于制造诸如垃圾或垃圾袋的塑料袋的机器包括可变直径的旋转密封滚筒，该滚筒包括用于交叉密封通过机器的扁平塑料薄膜管的一个或多个密封条。 橡皮布张紧系统围绕滚筒并可调节以补偿不同的滚筒直径。 离开鼓毯组件后，密封膜经过冷却辊，并通过拉辊在折叠板上拉伸。 密封折叠的薄膜然后用飞刀穿孔，并且优选地也在侧面切割以产生连接的一系列袋，其可以容易地彼此分离，以使得袋适合于容易的分配包装。 还可以提供一种变换器组件以确保在切割穿孔和袋密封之间的适当的裙部长度。
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公开(公告)号：US4624095A
公开(公告)日：1986-11-25
申请号：US736267
申请日：1985-05-22
CPC分类号： B65B25/145 , B65H45/18
摘要： A folder for sheets of pliable material, including bags, includes sets of conveying ropes and rollers to move the sheet from in-feed to discharge. One or more folding stations are provided, each of which includes a pneumatically-operated anvil with air holes which serves to create a fold in the material and change its direction of movement through the conveyor system. The final size of the product is determined by the number of folding steps employed. Control of the location of the fold, and hence the quality of the product is accomplished by control of the conveyor speed. An interrupt section is provided so that individual sheets of pliable material can be removed from perforated strips, e.g., in this production of garbage bags. Folded product is discharged into a pair of receiving trays, from which the product can be loaded into boxes or other packaging. In the preferred embodiment the folded product is alternately discharged through gates in the bottom of the trays, the discharge being assisted by an elongate ram which provides another fold to the stack and permits removal of the product from packaging in a one-at-a-time fashion.
摘要翻译： 用于包括袋子的柔韧材料片的夹具包括一组输送绳索和滚子，用于将片材从进给到移动到放电。 提供了一个或多个折叠站，每个折叠站包括具有气孔的气动操作的砧座，其用于在材料中产生折痕并改变其通过输送系统的运动方向。 产品的最终尺寸由采用的折叠步骤的数量决定。 通过控制输送机速度来实现折叠位置的控制，从而实现产品的质量。 提供了一个中断部分，使得可以将多个柔韧材料片从穿孔条上移除，例如在这种生产垃圾袋中。 折叠产品被排放到一对接收盘中，产品可从该托盘装载到箱子或其他包装中。 在优选实施例中，折叠的产品通过托盘的底部的门交替地排出，排出口由细长的拉头辅助，细长的拉头为堆叠提供另一个折叠，并允许从包装中取出产品， 时尚时尚。
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公开(公告)号：US5176610A
公开(公告)日：1993-01-05
申请号：US699163
申请日：1991-05-13
CPC分类号： B26D1/626 , B26D7/08 , Y10T83/4812 , Y10T83/4847 , Y10T83/8749
摘要： A system for dampening deflections which occur in an elongate rotating fly-knife includes camming elements along the length of the beam carrying the fly-knife. A second beam spaced from the knife is also mounted for rotation and includes spaced apart camming elements adapted to rotate and contact the fly-knife camming elements at that point during the rotational cycle when the fly-knife will cut and/or perforate the material with which the apparatus of the present invention is employed. In one preferred embodiment of the invention, the system is used to perforate, slit or cut plastic film, e.g., in the manufacture of bags. In another preferred embodiment of the invention, the system is used with a coversheet winding machine. The rotating beams of the invention are preferably driven by a single motor to maintain registration of the knife camming elements with the support beam camming elements.
摘要翻译： 在细长的旋转飞刀中发生的用于衰减偏转的系统包括沿着承载飞刀的梁的长度的凸轮元件。 与刀间隔开的第二个光束也被安装成旋转，并且包括间隔开的凸轮元件，其适于在旋转周期期间在飞刀切割和/或穿孔材料的同时旋转和接触飞刀凸轮元件， 使用本发明的装置。 在本发明的一个优选实施例中，该系统用于穿孔，切割或切割塑料膜，例如在袋的制造中。 在本发明的另一个优选实施例中，该系统与覆盖卷绕机一起使用。 本发明的旋转梁优选由单个电动机驱动，以保持刀具凸轮元件与支撑梁凸轮元件的对准。
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公开(公告)号：US4934993A
公开(公告)日：1990-06-19
申请号：US377240
申请日：1989-07-07
CPC分类号： B31B23/00 , B31B2219/028 , B31B2219/95 , B31B2237/10
摘要： A machine for making plastic bags from plastic film utilizes a rotatable drum having an adjustable diameter. The drum is constructed of a plurality of slats and includes a gear mechanism adapted for infinite variation of the drum diameter between a first smaller diameter and second larger diameter. A sealing blanket is provided for the drum and is automatically adjusted for different drum diameters to provide proper tension of the film as it passes around the expandable drum. The gear mechanism is operated manually or automatically by a motor mounted in the drum and can alter the drum diameter while the machine is running.A chill roll, a rotary handle hole punching unit, a perforator/cutter station and phase variators are also included. When the machine is used to make bags having printed material thereon, a comparator unit may also be used. The comparator unit uses an electric eye adjacent the drum to determine the spacing between activated sealing bars and an optical reader to determine the spacing between printing on the film. A mocroprocessor system compares these measured spacings to a preselected spacing interval. The microprocessor system activates the drum motor to adjust the spacing between heat seals and printed matter on the bag. The machine checks spacing on an ongoing basis to maintain proper spacing.
摘要翻译： 用于从塑料薄膜制造塑料袋的机器利用具有可调直径的可旋转滚筒。 滚筒由多个板条构成，并且包括适于在第一较小直径和第二较大直径之间无级变化滚筒直径的齿轮机构。 为鼓提供密封毯，并且可以针对不同的鼓直径自动调整胶片，以便当胶片通过可扩展滚筒时提供适当的张力。 齿轮机构由安装在滚筒中的电机手动或自动操作，并可在机器运行时改变滚筒直径。 还包括冷却辊，旋转手柄孔冲孔单元，穿孔机/切割站和相位变换器。 当机器用于制造其上具有印刷材料的袋子时，也可以使用比较器单元。 比较器单元使用邻近滚筒的电眼来确定激活的密封条和光学读取器之间的间距，以确定在胶片上打印之间的间隔。 一个微处理器系统将这些测量的间距与预选的间隔间隔进行比较。 微处理器系统激活滚筒电机以调节热封和袋上印刷品之间的间距。 机器会持续检查间距以保持适当的间距。
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公开(公告)号：US4667890A
公开(公告)日：1987-05-26
申请号：US755100
申请日：1985-07-15
CPC分类号： B65H19/30 , B65H18/16 , B65H19/267 , B65H75/242 , B65H2301/41425 , B65H2701/1846
摘要： A winder for winding pliable material into coreless rolls includes a conveyor for bringing the material into proximity with a turret. The turret includes a plurality of spindles upon which the material is to be wound. Transfer of the material to the spindle is accomplished by a cluster of rollers which surround an individual spindle at the time of transfer. Ropes or belts pass around the rollers to assist in guiding the pliable material. An air blast also assists in the transfer. At least one of the rollers is pivotable from a first position to a second position. An empty spindle is brought into the transfer position during turret indexing. The system of the present invention also includes a collapsible spindle to facilitate removal of the finished roll. The diameter of the spindle is decreased as a push-off palm removes the roll from the spindle and is increased during retraction of the palm to prepare the spindle for attachment of the leading edge of the next roll.
摘要翻译： 用于将柔韧材料缠绕成无芯辊的卷绕机包括用于将材料带到转台附近的输送机。 转塔包括多个心轴，材料将被卷绕在其上。 将材料转移到主轴通过一组辊子来实现，该组辊子在传送时围绕单独的主轴。 绳索或皮带绕过滚筒，以帮助引导柔韧的材料。 空气爆炸也有助于转移。 至少一个辊可以从第一位置枢转到第二位置。 在转塔分度过程中，一个空主轴进入转移位置。 本发明的系统还包括可折叠主轴，以便于完成的辊的移除。 主轴的直径随着推出手掌从主轴上移除辊而减小，并且在缩回手掌时增加主轴以准备用于附接下一个辊的前缘的主轴。
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公开(公告)号：US4567984A
公开(公告)日：1986-02-04
申请号：US641768
申请日：1984-08-17
CPC分类号： B31B23/00 , B65D33/002 , B65D83/0847 , B31B2219/028 , B31B2237/10 , Y10S206/82 , Y10S206/824
摘要： A machine for making plastic bags, such as trash or garbage bags, includes a rotary sealing drum of variable diameter, the drum including one or more sealing bars for cross-sealing a flattened plastic film tube passing through the machine. A blanket tensioning system surrounds the drum and is adjustable to compensate for different drum diameters. The sealed film passes over a chill roll after leaving the drum-blanket assembly and is drawn over folding boards by pull rolls. The sealed and folded film is then perforated by a fly knife and is preferably also cut on the sides to produce a connected series of bags which may easily be separated from one another to make the bags suitable for easy dispensing packages. A variator assembly may also be provided to insure a proper skirt length between the cut-perforation and the bag seal.
摘要翻译： 用于制造诸如垃圾或垃圾袋的塑料袋的机器包括可变直径的旋转密封滚筒，该滚筒包括用于交叉密封通过机器的扁平塑料薄膜管的一个或多个密封条。 橡皮布张紧系统围绕滚筒并可调节以补偿不同的滚筒直径。 离开鼓毯组件后，密封膜经过冷却辊，并通过拉辊在折叠板上拉伸。 密封折叠的薄膜然后用飞刀穿孔，并且优选地也在侧面切割以产生连接的一系列袋，其可以容易地彼此分离，以使得袋适合于容易的分配包装。 还可以提供一种变换器组件以确保在切割穿孔和袋密封之间的适当的裙部长度。
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