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    • 2. 发明授权
    • Film tension compensation device for bag making machine
    • 制袋机薄膜张力补偿装置
    • US4959044A
    • 1990-09-25
    • US334412
    • 1989-04-07
    • David A. SmithHerbert B. GeigerR. Douglas Behr
    • David A. SmithHerbert B. GeigerR. Douglas Behr
    • B31B23/00
    • B31B23/00B31B2219/028B31B2237/10
    • A bag making machine and method for the continuous production of bags from a folded web of thermoplastic material is provided. The apparatus includes a capability for making bags of differing widths as well as making bags having consistent widths for the particular size of bag selected. The apparatus includes a rotatable drum having a plurality of sever and seal stations for forming individual positioned about the outer periphery of the drum. A source of a continuous folded web of thermoplastic material is also provided, and continuously fed onto the surface of the drum. Means positioned between adjacent sever and seal stations tuck the web of material inwardly from the periphery of the drum. To prevent the occurrence of stretching forces which may adversely affect the web and the resulting width of the bags during processing, a film tension compensation means is provided for maintaining a constant path length for the web of material between the web source and the sever and seal stations. This results in the maintenance of a substantially constant tension on the web.
    • 提供了一种用于从热塑性材料的折叠网连续生产袋子的制袋机和方法。 该设备包括用于制造不同宽度的袋子的能力,以及制造具有针对所选择的袋子的特定尺寸的一致宽度的袋子。 该设备包括具有多个切割和密封站的可旋转滚筒,用于形成围绕滚筒的外围定位的单独定位。 还提供了热塑性材料的连续折叠腹板的源,并连续地供给到滚筒的表面上。 位于相邻的服务器和密封站之间的装置将卷筒纸从滚筒的周边向内收起。 为了防止在加工过程中产生可能不利地影响幅材的拉伸力和所产生的袋子的宽度,提供了膜张力补偿装置,用于在幅材源和切割器之间保持材料幅材的恒定的路径长度和密封 车站。 这导致在幅材上维持基本上恒定的张力。
    • 5. 发明授权
    • Bag transfer device
    • 袋传送装置
    • US4284301A
    • 1981-08-18
    • US28633
    • 1979-04-09
    • Herbert B. GeigerDavid A. Smith
    • Herbert B. GeigerDavid A. Smith
    • B65H5/08B66C1/42
    • B65H5/08
    • Apparatus for clamping and transferring to another location a stack of thermoplastic bags or the like wherein the bag walls have varying thicknesses. The apparatus preferably includes sets of clamping jaws for grasping the stack of bags. Each set comprises two pairs of the jaws. One pair is designed to rigidly clamp upon the stack while the other pair is spring-loaded or otherwise adjustable so that it can close differently than the first pair to compensate for the varying bag thicknesses even when the pairs of jaws are closed by the same drive mechanism. Each set of clamping jaws is independent of the other so that they can operate independently if one set were to jam.
    • 用于夹紧和转移到另一位置的装置,其中袋壁具有变化的厚度。 该装置优选地包括用于抓握袋子的一组夹爪​​。 每组包括两对夹爪。 一对被设计成刚性地夹紧堆叠,而另一对被弹簧加载或可调节,使得其可以与第一对不同地闭合,以补偿不同的袋厚度,即使当成对的夹爪由相同的驱动器封闭时 机制。 每组夹爪彼此独立,因此如果一套卡住,它们可以独立运行。