Process for making stretch film having heat-sealed edges
    1.
    发明授权
    Process for making stretch film having heat-sealed edges 失效
    制造具有热封边缘的拉伸膜的方法

    公开(公告)号:US06592699B1

    公开(公告)日:2003-07-15

    申请号:US09429390

    申请日:1999-10-28

    IPC分类号: B31F100

    摘要: A highly stretched film has permanently heat-sealed edges that are nearly invisible. A folding apparatus folds the edge portions of a film to form folded edges. The folded film then is passed through a bridle mechanism having two heated rolls. A series of nips apply pressure to the folded film as it is heated by the heated rolls. The nip pressure, combined with the heat imparted by the heated rolls, causes thermal welding of the folded edges resulting in permanent heat-sealed edges. Because the film edges are folded prior to the hot-stretching, the hot stretch process performs dual functions of stretching the film and heat sealing the folded edges. The resulting stretched film has permanently heat-sealed edges that do no separate, and which prevent tearing of the film edges during subsequent processing and use.

    摘要翻译: 高度拉伸的膜具有几乎看不见的永久热封边。 折叠装置折叠胶片的边缘部分以形成折叠边缘。 然后将折叠的薄膜通过具有两个加热辊的梳齿机构。 一系列胶片在被加热的辊加热时对折叠膜施加压力。 辊隙压力与加热辊所产生的热量相结合,引起折叠边缘的热焊接,导致永久的热封边缘。 由于薄膜边缘在热拉伸之前被折叠,所以热拉伸过程执行拉伸薄膜并热封折叠边缘的双重功能。 所得到的拉伸膜具有永久的热封边缘,其不分离,并且防止在随后的加工和使用期间撕裂薄膜边缘。

    Apparatus and high speed process for making highly stretched film
    2.
    发明授权
    Apparatus and high speed process for making highly stretched film 失效
    用于制造高拉伸膜的装置和高速工艺

    公开(公告)号:US06375781B1

    公开(公告)日:2002-04-23

    申请号:US09429147

    申请日:1999-10-28

    IPC分类号: B32B3100

    摘要: An apparatus and high speed process for heating and stretching a film having a bridle mechanism comprising a first heated roll and a second heated roll. The film is stretched as the film is transferred from the first heated roll to the second heated roll which rotates at a speed greater than the speed at which the first heated roll rotates. The film is fed into the bridle mechanism at a rate of about 1,500 fpm to about 2,500 fpm wherein it is stretched to a length that is up to about 450% greater than its initial, pre-stretched length. The increased contact between the large diameter heated rolls and the film and the short draw gap between the two heated rolls result in a highly stretched film having minimal neck-in.

    摘要翻译: 一种用于加热和拉伸具有包括第一加热辊和第二加热辊的拉链机构的膜的装置和高速方法。 当膜从第一加热辊转移到以比第一加热辊旋转的速度大的速度旋转的第二加热辊时,膜被拉伸。 以约1,500fpm至约2500fpm的速率将膜进料到brid le机构中,其中其被拉伸至比其初始预拉伸长度高达约450%的长度。 大直径加热辊和膜之间的增加的接触和两个加热辊之间的短拉伸间隙导致具有最小颈缩的高拉伸膜。

    Method and apparatus for wrapping and securing stretch film about a load
    4.
    发明授权
    Method and apparatus for wrapping and securing stretch film about a load 失效
    用于围绕负载缠绕和固定拉伸膜的方法和装置

    公开(公告)号:US5802810A

    公开(公告)日:1998-09-08

    申请号:US896315

    申请日:1997-06-28

    IPC分类号: B65B11/02 B65B13/00 B65B53/00

    CPC分类号: B65B11/025 B65B2210/20

    摘要: A method and apparatus for wrapping and securing film about a load by positioning a first arm retaining an end portion of film toward the load, wrapping a layer of film about the first arm so the first arm is between the wrapped film and the load, withdrawing the first arm retaining the film from between the wrapped film and the load, and releasing the end portion of film retained by the first arm to position and secure a first film portion between the wrapped film and the load. The load is further wrapped and a second arm is subsequently positioned toward the load, and a layer of film is wrapped about the second arm so the second arm is between the wrapped film and the load. A roped film portion is captured and retained by the first and second second arms. The roped film is then severed and an end portion of the severed film is retained by the first arm for subsequently wrapping another load. The other end of the severed roped film portion is retained by the second arm, which is withdrawn from between the wrapped film and the load to position and secure a second film portion between the wrapped film and the load. The arms are withdrawn along a relatively straight path by laterally translating the arms while pivoting thereby reducing contact between at least the portion of the arm retaining the film tail and the wrapped film.

    摘要翻译: 一种用于通过将保持膜端部的第一臂定位到负载上来缠绕和固定膜的方法和装置,围绕第一臂缠绕膜层,使得第一臂在包裹的膜和负载之间,抽出 所述第一臂将所述膜保持在所述包裹的膜和所述负载之间,并且释放由所述第一臂保持的所述膜的端部,以将所述第一膜部分定位并固定在所述包膜和所述负载之间。 负载被进一步包裹,并且随后将第二臂朝向负载定位,并且一层膜围绕第二臂缠绕,使得第二臂位于包裹膜和负载之间。 被卷绕的薄膜部分被第一和第二第二臂捕获并保持。 然后将被卷绕的膜切断,并且被切断的膜的端部被第一臂保持以便随后包裹另一个负载。 被切断的被卷绕的薄膜部分的另一端由第二臂保持,第二臂从被包裹的薄膜和负载之间取出,以将第二薄膜部分定位并固定在包裹的薄膜和负载之间。 通过在枢转的同时横向平移臂同时沿着相对直的路径撤回臂,从而减少至少保持膜尾部的臂的部分和包裹的膜之间的接触。

    Shuttle Push System For Coating Applicators
    9.
    发明申请
    Shuttle Push System For Coating Applicators 审中-公开
    用于涂布机的穿梭推送系统

    公开(公告)号:US20080173236A1

    公开(公告)日:2008-07-24

    申请号:US11911258

    申请日:2006-04-10

    摘要: A shuttle push system (10) is provided with a displacing object (36) for insertion into a supply tube (26) and removal from the supply at spaced locations. A return tube moves (34) the displacing object between the position at which it is removed (32) from the supply tube and the position (30) at which it is inserted into the supply tube.

    摘要翻译: 梭式推动系统(10)设置有用于插入供给管(26)中的移位物体(36)并且在间隔位置处从供给部件移除。 返回管将移动物体(31)移动(34)位于其从供给管移除的位置(32)和其插入供给管的位置(30)之间。

    SPRAY COATING APPLICATOR SYSTEM
    10.
    发明申请
    SPRAY COATING APPLICATOR SYSTEM 有权
    喷涂涂料系统

    公开(公告)号:US20090202731A1

    公开(公告)日:2009-08-13

    申请号:US11911301

    申请日:2006-04-10

    IPC分类号: B05D1/02 B05B7/00

    摘要: A spray applicator system is provided with a reservoir manifold assembly having a separate reservoir for each different coating to be applied. Reservoirs are filled from a coating supply system and isolated electrically from the supply system when coating is dispensed from a reservoir to the applicator. Multiple sets of reservoirs can be used, so that an empty reservoir in one set can be filled while coating is dispensed from a reservoir in the other set. The set of reservoirs in which a reservoir is being filled is isolated electrically from the applicator, and of the set of reservoirs in which a reservoir is dispensing coating to the applicator is isolated electrically from the supply system.

    摘要翻译: 喷雾器系统设置有储存器歧管组件,其具有用于要施加的每个不同涂层的单独储存器。 储存器从涂料供应系统填充,并且当涂料从储存器分配到施用器时与供应系统电隔离。 可以使用多组储存器,使得一组中的空的储存器可以在另一组中的储存器分配涂料时填充。 其中储存器被填充的一组储存器与施加器电隔离,并且储存器分配涂层到所述施加器的所述一组储存器与所述供应系统电隔离。