Separating a web at a line of weakness

    公开(公告)号:US5979729A

    公开(公告)日:1999-11-09

    申请号:US613328

    申请日:1996-03-11

    摘要: This invention pertains to apparatus and methods for breaking a web along spaced lines of weakness. The invention includes a compact breaker bar assembly comprising at least one breaker bar in a gap. The apparatus also includes driving apparatus to power the breaker bar assembly in breaking the web. In some embodiments, one or more breaker bars engage and stress the web along a single transverse line across the web, breaking the web. In other embodiments, at least first and second breaker bars engage and stress the web along spaced first and second transverse lines across the web. The breaker bars can be mounted on one or more rotary elements, or can be mounted on one or more belts or other breaker bar carriers, traversing closed-loop paths. In preferred embodiments, the breaker bar assembly comprises at least two breaker bars, a first breaker bar following a first straight-line path segment while a second breaker bar follows a second opposing straight line path segment, both breaker bars engaging and stressing the web at the same time, both breaker bars following the straight-line path segments before engaging the web, during engaging and stressing of the web, while breaking the web, and after breaking the web.

    Method of forming a bag chain
    2.
    发明授权
    Method of forming a bag chain 失效
    形成袋链的方法

    公开(公告)号:US4523918A

    公开(公告)日:1985-06-18

    申请号:US441243

    申请日:1982-11-12

    申请人: Steven Ausnit

    发明人: Steven Ausnit

    摘要: An improved method and mechanism for forming a chain of laterally interconnected plastic bags which have confronting releasably interlocking rib and groove profile elements on the inner confronting wall surfaces or at the edge of said surface including advancing a tube or a folded film of plastic bag material having interlocked rib and groove profile elements, forming spaced spot seals at the profile element and alternately at another location to permanently join the layers of material and permanently join the rib and groove elements over the area of the spot, forming lateral seals extending the width of the material at the location of the spot seals to provide side seams for the adjacent bags, and cutting through the material along the center of the seam to partially separate the bags with the cuts extending a predetermined distance partially into the spot seals to control their remaining strength and control the separation force needed to separate adjacent bags.

    摘要翻译: 一种用于形成横向互连的塑料袋链的改进方法和机构,其在所述表面的内对面壁表面或所述表面的边缘处具有可释放地互锁的肋和凹槽轮廓元件,包括推进具有塑料袋材料的管或折叠膜, 互锁的肋和凹槽轮廓元件,在轮廓元件处形成间隔开的点密封,并且在另一位置交替地在另一位置处永久地连接材料层并且在该点的区域上永久地连接肋和凹槽元件,形成横向密封, 在位置的位置的材料密封以提供相邻袋的侧缝,并且沿着接缝的中心切割材料,以便将具有预定距离的切口部分地分开以将部分分开地插入到点密封件中以控制其剩余强度 并控制分离相邻袋所需的分离力。

    Bag slow down
    3.
    发明授权
    Bag slow down 失效
    袋慢下来

    公开(公告)号:US4073223A

    公开(公告)日:1978-02-14

    申请号:US735223

    申请日:1976-10-22

    IPC分类号: B31B19/94 B31B1/94

    摘要: This application discloses an improved device for reducing the velocity at which thermoplastic bags, as they are produced by a bag machine, are directed to a table, or other suitable support, for accumulation in even-edged stacks.

    摘要翻译: 本申请公开了一种用于降低速度的改进装置,其中热塑性袋由袋机生产,被引导到工作台或其他合适的支撑件上,用于堆积在均匀的堆叠中。

    Recloseable bag assembly and method of making same
    4.
    发明授权
    Recloseable bag assembly and method of making same 失效
    可重新包装袋组装及其制作方法

    公开(公告)号:US5951453A

    公开(公告)日:1999-09-14

    申请号:US749789

    申请日:1996-11-15

    申请人: James W. Yeager

    发明人: James W. Yeager

    摘要: A package in the form of a recloseable bag includes a bag body including front and back walls, and a profile strip fastener assembly sealingly mounted on the inside surface of the front wall. The profile strip fastener assembly includes a pair of releasably interlocking profile strips. One of the profile strips is connected to the inside of the front wall of the bag, while the other one of the profile strips includes a flange portion which extends from the profile strips to and adjacent end seal of the bag. A method of forming recloseable bags is disclosed, which method can be employed with a form, fill, and seal machine for effecting the efficient packaging of products in recloseable bags.

    摘要翻译: 可重新封闭的袋子形式的包装件包括一个包括前壁和后壁的袋体,以及密封地安装在前壁的内表面上的型材条紧固件组件。 型材条紧固件组件包括一对可释放地互锁的型材条。 轮廓条中的一个连接到袋的前壁的内部,而另一个轮廓条包括从轮廓带延伸到袋的相邻端部密封件的凸缘部分。 公开了一种形成可再封闭袋的方法,该方法可以与形式,填充和密封机器一起使用,以实现产品在可再封闭袋中的高效包装。

    Continuous roll of plastic bags
    5.
    发明授权
    Continuous roll of plastic bags 失效
    连续卷塑料袋

    公开(公告)号:US5921390A

    公开(公告)日:1999-07-13

    申请号:US59436

    申请日:1998-04-09

    申请人: Ebrahim Simhaee

    发明人: Ebrahim Simhaee

    摘要: A multi-ply plastic bag from a continuous strip of bags on a roll is supplied to a user with the top of the bag partially opened. A tear line between the bottom of a leading bag and a top of a subsequent bag separates the individual bags. A broad slit centrally located in the tear line passes through all but one ply of the strip of bags. The bag dispenser has an upwardly projecting tongue which engages the slit in the tear line when a user draws a bag from the dispenser. The tongue impedes the subsequent bag from moving forward. The adjacent bags separate along the tear line. The ply which does not have a slit rides over the tongue and pulls apart the plies at the opening of the subsequent bag before the leading bag completely separates from the subsequent bag.

    摘要翻译: 一个多层塑料袋从一个连续的卷带上提供给使用者的袋子的顶部部分打开。 领先袋的底部和后续袋的顶部之间的撕裂线分离各个袋。 位于撕裂线中心的宽狭缝穿过袋子的一层,但是除了一层。 当用户从分配器中抽出袋子时,袋子分配器具有向上突出的舌部,其接合撕裂线中的狭缝。 舌头妨碍随后的袋子向前移动。 相邻的袋子沿撕裂线分开。 没有狭缝的帘布层穿过舌头,并在前排袋与后续袋子完全分离之前,在随后的袋子的开口处分开帘布层。

    Bag folding machine
    7.
    发明授权
    Bag folding machine 失效
    袋折叠机

    公开(公告)号:US4183515A

    公开(公告)日:1980-01-15

    申请号:US920130

    申请日:1978-06-28

    申请人: John B. Coast

    发明人: John B. Coast

    摘要: In a bag folding machine of the type which includes a rolling section for winding the bag into a roll, with the rolling section divided into two sub-sections spaced a predetermined distance apart to form an open area therebetween including means for withdrawing the bag from the rolling section the improvement comprising said bag withdrawal means being arranged to withdraw the bag through the open area in a predetermined discharge direction with each sub-section having an entrance opening with a substantially flat surface on opposite sides of the open area in a common plane transverse to the discharge direction.

    摘要翻译: 在一种包括用于将袋子卷绕成卷的滚动部分的袋式折叠机中,其中滚动部分被分成间隔开预定距离的两个子部分,以形成其间的开放区域,包括用于从袋子中取出袋子的装置 滚动部分包括所述袋取出装置的改进被布置成在预定的排放方向上将袋子通过开口区域撤回,每个子部分具有在敞开区域的相对侧上的大致平坦表面的入口开口, 到排出方向。

    Separating a web at a line of weakness

    公开(公告)号:US5964389A

    公开(公告)日:1999-10-12

    申请号:US978130

    申请日:1997-11-25

    摘要: This invention pertains to apparatus and methods for breaking a web along spaced lines of weakness. The invention includes a compact breaker bar assembly comprising at least one breaker bar in a gap. The apparatus also includes driving apparatus to power the breaker bar assembly in breaking the web. In some embodiments, one or more breaker bars engage and stress the web along a single transverse line across the web, breaking the web. In other embodiments, at least first and second breaker bars engage and stress the web along spaced first and second transverse lines across the web. The breaker bars can be mounted on one or more rotary elements, or can be mounted on one or more belts or other breaker bar carriers, traversing closed-loop paths. In preferred embodiments, the breaker bar assembly comprises at least two breaker bars, a first breaker bar following a first straight-line path segment while a second breaker bar follows a second opposing straight line path segment, both breaker bars engaging and stressing the web at the same time, both breaker bars following the straight-line path segments before engaging the web, during engaging and stressing of the web, while breaking the web, and after breaking the web.

    Zippered bag and film
    9.
    发明授权
    Zippered bag and film 失效
    拉链袋和电影

    公开(公告)号:US5902047A

    公开(公告)日:1999-05-11

    申请号:US957304

    申请日:1997-10-23

    申请人: James W. Yeager

    发明人: James W. Yeager

    摘要: Reclosable bags, plastic film for making the bags, and a method and apparatus for making the bags are disclosed. The bag has a reclosable fastener connected to a single wall of the bag, and the film has a reclosable fastener connected to one side thereof which does not require attachment to any other portion of the film when making a bag. The fastener has a tamper-proof member attached thereto to indicate if the bag has been previously opened. The film can be wound into roll suitable for use on conventional bag making machines including form, fill, and seal machines or a chain of coilable reclosable bags can be produced therefrom since the fasteners are connected to the web preferably transversely to the bags longitudinal formation axis. The method and apparatus for making the film includes supplying a continuous web of bag making material, feeding from a coil of continuous fastener material enough fastener material to make a single fastener, and positioning, cutting, and attaching the fastener to the film, with a plurality of fasteners attached thereon.

    摘要翻译: 公开了用于制造袋子的可重新封闭的袋子,塑料薄膜以及用于制造袋子的方法和装置。 该袋具有连接到袋的单个壁的可再闭合紧固件,并且膜具有连接到其一侧的可再闭合紧固件,其在制造袋时不需要附接到膜的任何其它部分。 紧固件具有附接到其上的防篡改构件以指示袋是否已经被预先打开。 该膜可以卷绕成适合用于包括形状,填充和密封机器的常规制袋机的辊,或者可以由其制造一系列可卷绕的可再封闭的袋,因为紧固件优选地横向于袋纵向形成轴线 。 用于制造薄膜的方法和设备包括供应连续的制袋材料网,从连续紧固材料的线圈供给足够的紧固件以制成单个紧固件,并将紧固件定位,切割和附接到薄膜上, 附接在其上的多个紧固件。