Belt adjusting device and single facer
    62.
    发明授权
    Belt adjusting device and single facer 失效
    皮带调整装置和单面

    公开(公告)号:US5518457A

    公开(公告)日:1996-05-21

    申请号:US308579

    申请日:1994-09-19

    Abstract: A single facer which includes a rotating corrugating roll for corrugating a medium; an endless belt for pressing a liner against the medium on the corrugating roll; at least a pair of belt rolls for running the endless belt; and a direction adjusting mechanism for changing the running direction of the endless belt with respect to the rotating shaft of the corrugating roll within the running plane of the endless belt to correct zigzag or sideway motion of the belt occurring while the belt is running; a detector for detecting sideway displacements of the endless belt; a computer for computing a positional correction to be made in the width direction based on a signal from the detector; and a controller for controlling the direction adjusting mechanism based on a value computed by the computer. In addition to the adjustment of the running direction of the endless belt, a tension balance between the opposite edges of the endless belt can be corrected by adjusting the relative angle between the shafts of the belt rolls.

    Abstract translation: 一个单面,其包括用于使介质波纹化的旋转波纹辊; 用于将衬垫压靠在波纹辊上的介质上的环形带; 至少一对用于运行环形带的带辊; 以及方向调节机构,用于在环形带的行进平面内相对于波纹辊的旋转轴改变环形带的行进方向,以纠正在带运行时发生的带的锯齿形或侧向运动; 用于检测环形带的侧向位移的检测器; 计算机,用于基于来自检测器的信号计算在宽度方向上进行的位置校正; 以及控制器,用于基于由计算机计算的值来控制方向调整机构。 除了环形带的行进方向的调整之外,通过调节带辊的轴之间的相对角度可以校正环形带的相对边缘之间的张力平衡。

    Method for making a web of plastic material
    65.
    发明授权
    Method for making a web of plastic material 失效
    制造塑料材料网的方法

    公开(公告)号:US4810315A

    公开(公告)日:1989-03-07

    申请号:US881138

    申请日:1986-07-02

    Abstract: A web of plastic material presenting filtering properties comprises a porous layer interconnected with a first non woven layer of plastic fibers.The porous layer is formed by heating another nonwoven of plastic fibers, having a lower plasticizing temperature than the fibers of the first non woven, to at least the plasticizing temperature of the fibers of the other non woven but below the plasticizing temperature of the fibers of the first non woven.The first nonwoven consists of polyester fibers and the other nonwoven, e.g., of polypropylene fibers.An apparatus for manufacturing such a web comprises a central roller, and endless felt band partially slung around said central roller, a heating member and a cooling element.In one embodiment the apparatus comprises a heatable central roller, a second endless metal band engaging a coolable second roller, said heatable central roller and an endless felt band partially surrounding the heatable central roller and a part of the metal band engaging said heatable central roller, non-woven material being passed between said endless metal band and said felt band (FIG. 2).In an other embodiment the central roller is a coolable central roller, heating means being accommodated opposite a region of the central roller and a part of the metal band engaging said part of the central roller. The felt band engages the central roller before and after the region opposite the heating means (FG. 3).

    Abstract translation: 具有过滤性能的塑料纤维网包括与塑料纤维的第一非编织层互连的多孔层。 多孔层通过将具有比第一非织造织物的纤维更低的塑化温度的另一种塑料纤维非织造材料加热至至少另一种无纺织物的纤维的增塑温度,但低于纤维的增塑温度 第一个无纺布。 第一种非织造材料由聚酯纤维和另一种非织造材料组成,例如聚丙烯纤维。 用于制造这种网的装置包括中心辊和围绕所述中心辊部分地环绕的环形毡带,加热构件和冷却元件。 在一个实施例中,该装置包括可加热中心辊,接合可冷却第二辊的第二环形金属带,所述可加热中心辊和部分围绕可加热中心辊的环形毡带和接合所述可加热中心辊的金属带的一部分, 非织造材料在所述环形金属带和所述毡带之间通过(图2)。 在另一个实施例中,中心辊是可冷却的中央辊,加热装置与中心辊的区域相对地容纳,金属带的一部分与中央辊的所述部分接合。 毛毡带在与加热装置(FG.3)相对的区域之前和之后接合中心辊。

    Method for making sandwich laminations in one pass
    66.
    发明授权
    Method for making sandwich laminations in one pass 失效
    在一个通道中制造三明治层压的方法

    公开(公告)号:US3697360A

    公开(公告)日:1972-10-10

    申请号:US3697360D

    申请日:1969-12-04

    Abstract: Method for bonding two moving webs of a cover material to opposite sides of a moving web of a core material including means for applying discrete portions of adhesive to the surface of the of the webs of cover material and to one of the surfaces of the core material, means for bringing the two moving webs of cover material into contact with the moving web of core material and means for holding all the webs together while subjecting the adhesive to heat in order to cure the adhesive in one pass through the apparatus. The method of bonding two webs of a cover material to opposite sides of a moving web of core material comprising the steps of applying discrete portions of adhesive portions to adhesive to one side of one web of cover material, bringing a web of cover material into contact with each other with each side of the web of core material and compressing the resultant laminate of webs together while subjecting the laminate to heat in order to cure the adhesive.

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