Method of making thermoplastic bag and bag pack
    71.
    发明授权
    Method of making thermoplastic bag and bag pack 失效
    制造热塑性袋和袋包装的方法

    公开(公告)号:US4699608A

    公开(公告)日:1987-10-13

    申请号:US849638

    申请日:1986-04-09

    IPC分类号: B65D33/00 B65D33/06 B65D85/62

    摘要: A thermoplastic bag structure having, in its lay-flat condition, a front and rear bag wall, a two-film heat seal bottom; the outer side margins of the full length of said bag being folded toward but spaced from each other. The top most edge of each fold is heat sealed through the four films thereof along line corresponding to the width of the folds. An open mouth top portion being characterized by having double film handle loops at opposite ends of said mouth, said double film loops being extensions of the folded regions of said bags and the corresponding regions of said front and rear walls. The bag structures can be unitized by providing a detachable tab at the bag mouth opening and unitizing the bag structures through this tab. The method of forming said bags involves providing an end sealed collapsed thermoplastic film tube, folding the sides of the tube toward but spaced from each other, heat sealing one end of the tube through four layers thereof and removing plastic from this end of the structure to form a bag mouth and handles at one end thereof. The resulting bag is an ungusseted bag which can be unitized into a pack by providing a detachable, unitizing tab at the bag mouth opening.

    摘要翻译: 一种热塑性袋结构,在其平坦状态下具有前袋和后袋壁,两膜热封底; 所述袋的全长的外侧边缘被折叠成彼此间隔开。 每个折叠的最上边缘通过其对应于折叠宽度的线的四个膜热密封。 开口顶部的特征在于在所述口的相对端处具有双膜手柄环,所述双膜环是所述袋的折叠区域和所述前壁和后壁的相应区域的延伸。 袋结构可以通过在袋口开口处提供可拆卸的突片并通过该突片将袋结构整合在一起。 形成所述袋的方法包括提供端部密封的塌缩热塑性薄膜管,将管的侧面折叠成彼此间隔开,将管的一端热封四层,并从该结构的该端部移除塑料, 在其一端形成袋口和手柄。 所得到的袋子是一个未连接的袋子,它可以通过在袋口开口处提供一个可拆卸的整合片,将其组合成包装。

    Apparatus for stacking and conveying flat articles, preferably bags made
of plastic film
    72.
    发明授权
    Apparatus for stacking and conveying flat articles, preferably bags made of plastic film 失效
    用于堆放和输送扁平制品的装置,优选由塑料薄膜制成的袋子

    公开(公告)号:US4657528A

    公开(公告)日:1987-04-14

    申请号:US800810

    申请日:1985-11-22

    摘要: Apparatus for stacking and conveying flat articles that are preferably provided with locating holes and preferably consist of bags that have been severed from a tubular or semitubular plastic film web and have been closed by welding. The bags are carried from a forming station to a pair of adjacent, parallel stacking conveyors by a rotatable wicketer having spaced pairs of radial transfer arms. The stacking conveyors include endless belt like carries that pass around rotatable wheels or rollers and are intermittently driven. The carriers include upstanding stacking pins or stacking needles, which extend from and are secured to carrying plates mounted on the carriers. Two spaced, adjacent stacking conveyors are provided and different tools for acting on the intermittently conveyed stacks of bags are selectively provided and detachably secured to the frame of the apparatus between the stacking conveyors. The stacking conveyors and tools are movable transversely relative to the conveying direction to adjust the positions of the tools relative to the bags.

    摘要翻译: 用于堆叠和输送扁平制品的装置,其优选地设置有定位孔,并且优选地由已经从管状或半管状塑料薄膜腹板切断并且已经通过焊接封闭的袋组成。 袋子通过具有间隔开的一对径向传送臂的可旋转检测器从成形站运送到一对相邻的平行堆叠输送机。 堆垛式输送机包括通过可转动的轮子或辊子的环形带状承载物,并间歇地驱动。 载体包括直立的堆叠针或堆叠针,其从安装在载体上的承载板延伸并固定到承载板上。 提供了两个间隔开的相邻的堆垛输送机,并且用于作用在间歇传送的袋子组件上的不同工具被选择性地提供并且可拆卸地固定到装置的框架在堆垛输送机之间。 堆垛输送机和工具可相对于输送方向横向移动,以调节工具相对于袋子的位置。

    Plastic bag handle aperture forming apparatus
    73.
    发明授权
    Plastic bag handle aperture forming apparatus 失效
    塑料袋手柄孔口成型装置

    公开(公告)号:US4636191A

    公开(公告)日:1987-01-13

    申请号:US577713

    申请日:1984-02-07

    申请人: David C. Piggott

    发明人: David C. Piggott

    IPC分类号: B26F1/38 B31B23/18 B31B23/86

    摘要: There is disclosed a bag making machine for producing bags from an elongate strip of plastic web material. The disclosure relates to various improvements in the bag making machine such as the apparatus for cutting the bag handle aperture. The apparatus includes at least one circular cutting blade having a plunger movable relative thereto within its cutting periphery. The plunger includes a web piercing member on its leading face which member positively holds the web material relative to the cutting blade and plunger.

    摘要翻译: 公开了一种用于从细长的塑料网材料带生产袋子的制袋机。 本公开涉及制袋机的各种改进,例如用于切割袋手柄孔的装置。 该装置包括至少一个圆形切割刀片,其具有可在其切割周边内相对于其移动的柱塞。 柱塞在其前表面上包括腹板刺穿构件,该构件相对于切割刀片和柱塞正确地保持腹板材料。

    Apparatus for making plastic carrier bags
    74.
    发明授权
    Apparatus for making plastic carrier bags 失效
    制造塑料运输袋的设备

    公开(公告)号:US4605392A

    公开(公告)日:1986-08-12

    申请号:US656999

    申请日:1984-10-02

    摘要: In an apparatus for making plastics carrier bags from a web of tubular film of thermoplastic material, a feeding mechanism intermittently conveys the webs by one bag width and a severing mechanism cuts the web into half tubes along an undulating curve. A carriage displaceable in the machine frame transversely to the feeding direction of the web is reciprocated by a drive derived from a first rotating control cam through gearing. A cutting knife pivotable in the carriage about its longitudinal axis passes through the plane of the tube about an axis perpendicular thereto and is so controlled by an oscillating drive derived from a second rotating control cam that its edge is substantially tangential to the undulating curve at the cutting point. A detour assembly retards one of the half tubes to bring the bag side edge zones into phase and each half tube is formed into bags by a transverse sever-sealing device.

    摘要翻译: 在用于由热塑性材料的管状薄膜网制造塑料载体袋的装置中,进给机构间歇地将腹板传送一个袋宽,并且切断机构沿着起伏的曲线将纤维网切割成半管。 通过从第一旋转控制凸轮通过齿轮传动得到的驱动,使在机架中横向于幅材的进给方向移位的滑架往复运动。 可在托架上围绕其纵向轴线枢转的切割刀沿着垂直于其的轴线穿过管的平面,并且由来自第二旋转控制凸轮的振荡驱动器来控制,该第二旋转控制凸轮的边缘基本上与波纹曲线相切, 切割点 迂回组件延伸半管中的一个以使袋侧边缘区域相位,并且每个半管通过横向密封装置形成袋。

    Thermoplastic bag having reinforced handles and method of manufacture
    75.
    发明授权
    Thermoplastic bag having reinforced handles and method of manufacture 失效
    具有加强手柄和制造方法的热塑性塑料袋

    公开(公告)号:US4597749A

    公开(公告)日:1986-07-01

    申请号:US748699

    申请日:1985-06-25

    IPC分类号: B31B19/90 B65D33/06 B31B1/86

    摘要: The present invention relates to a thermoplastic bag which is characterized by having a pair of carrying handles formed integrally with the bag walls and extending upwardly from opposite sides of an open mouth portion of the bag. The handle members are reinforced and comprise at least two layers of thermoplastic material, one of the layers forming the bag body and handles and the other layer serving as a reinforcement layer. The reinforcement layer is provided only in the handle areas of the bag structure.

    摘要翻译: 本发明涉及一种热塑性袋,其特征在于具有与袋壁一体形成并从袋的开口部分的相对侧向上延伸的一对承载手柄。 手柄构件被加强并且包括至少两层热塑性材料,其中一层形成袋体和把手,另一层用作增强层。 加强层仅设置在袋结构的手柄区域中。

    Method of forming a thermoplastic film sack having a stress relieved
bottom gusset seal line
    76.
    发明授权
    Method of forming a thermoplastic film sack having a stress relieved bottom gusset seal line 失效
    形成具有应力消除底部角撑板密封线的热塑性薄膜袋的方法

    公开(公告)号:US4588392A

    公开(公告)日:1986-05-13

    申请号:US725975

    申请日:1985-04-22

    申请人: Robert T. Maddock

    发明人: Robert T. Maddock

    IPC分类号: B65D30/20 B31B1/64

    摘要: A plastic film sack having gussetted side walls, and in the bottom of said sack, a heat-seal stripe welding together the four film layers in the gusseted regions of the sack and a heat seal stripe welding together the two film layers between said gusseted regions; and between the heat-seal stripes of the four film layers and the heat-seal stripe of the two film layers are unsealed, arcuate stress-relief regions and the method of forming the same.

    摘要翻译: 一种具有角撑板侧壁的塑料薄膜袋,并且在所述袋的底部中,将密封条条焊接在袋的角撑板区域中的四个薄膜层和将所述两个薄膜层之间的所述角撑板区域焊接在一起的热封条 ; 并且在四个膜层的热封条之间和两个膜层的热封条之间是未密封的,弓形应力消除区域及其形成方法。

    Method of forming a plastic shopping bag having a reinforced handle
    78.
    发明授权
    Method of forming a plastic shopping bag having a reinforced handle 失效
    形成具有加强手柄的塑料购物袋的方法

    公开(公告)号:US4174657A

    公开(公告)日:1979-11-20

    申请号:US920613

    申请日:1978-06-29

    摘要: A plastic shopping bag is provided with an integral handle portion of wave configuration having a strip of reinforcement material therein of heavier gauge plastic than the remainder of the bag. The heavier gauge strip extends across the handle portion in spaced relation to the side edges of the bag. A plurality of such bags are fabricated by providing a flattened plastic film tube which has coextensive overlapping strips of heavier gauge material on the opposite faces thereof, cutting through the tube faces along a cutting line of cyclically recurring wave configuration that extends in the direction of elongation of the heavier gauge strips, the wavelength of said wave configuration being substantially equal to the desired width of the mouth of one of said shopping bags and the amplitude of said wave configuration being greater than the widths of said heavier gauge strips whereby the crests of the wave configuration are located at positions outside the boundary edges of the heavier gauge strips, and thereafter cutting the two faces along transverse seam lines which extend from the wave configuration crests to the outer edges of the flat tube of plastic film material.

    摘要翻译: 一个塑料购物袋设置有波形结构的整体手柄部分,其中具有比袋的其余部分更重的塑料的增强材料条。 较重的测试条以与袋的侧边缘隔开的关系延伸穿过手柄部分。 通过提供一种扁平的塑料薄膜管来制造多个这样的袋子,该塑料薄膜管在其相对的表面上具有较重的重质材料的共同重叠条带,沿着沿伸长方向延伸的循环重复波形构型的切割线切割管面 较重的条带的波长,所述波形的波长基本上等于所述购物袋之一的口的所需宽度,并且所述波形的振幅大于所述较重的条带的宽度,由此, 波形配置位于较重的条带的边界边缘以外的位置处,然后沿着从波形构造波峰延伸到塑料薄膜材料的扁平管的外边缘的横向接缝线切割两个面。

    Method of making flexible bag
    80.
    发明授权
    Method of making flexible bag 失效
    制作柔性袋的方法

    公开(公告)号:US3954049A

    公开(公告)日:1976-05-04

    申请号:US414200

    申请日:1973-11-09

    摘要: A flexible bag construction and a method for producing the bag. The construction is formed from flexible plastic films located in overlying relationship with one film defining a return portion having a free edge positioned inwardly from the top of the bag. A second free edge is defined by a separate film portion in spaced relationship relative to the first free edge. A flexible plastic strip is introduced between the return portion and the opposing film and this strip is heat sealed in place. The second free edge provides a means for inserting articles into the bag whereby the bag can be used for merchandising purposes, particularly after being sealed along the second free edge. An opening is preferably formed in the top of the bag extending through overlying film portions and the intermediate strip to provide means for suspending the bag.

    摘要翻译: 柔性袋结构和袋的制造方法。 该结构由与限定具有从袋的顶部向内定位的自由边缘的返回部分的一个膜的覆盖关系形成的柔性塑料膜形成。 第二自由边缘由相对于第一自由边缘间隔开的单独的薄膜部分限定。 在返回部分和相对的膜之间引入柔性塑料条,并将该带热封在适当的位置。 第二自由边缘提供用于将物品插入袋中的装置,由此袋可以用于商品目的,特别是在沿着第二自由边缘密封之后。 优选地,在袋的顶部形成开口,该顶部延伸穿过覆盖的薄膜部分和中间条,以提供用于悬挂袋的装置。