Method and apparatus for converting plastic
    93.
    发明公开
    Method and apparatus for converting plastic 失效
    转换塑料的方法和设备

    公开(公告)号:EP0644039A2

    公开(公告)日:1995-03-22

    申请号:EP94306810.6

    申请日:1994-09-16

    发明人: Jensen, John D.

    IPC分类号: B29C65/10 B29C53/48

    摘要: A tube-forming machine and process has a supply for delivering an elongate, folded, plastic web (10) along a path of travel. The web may be clear polyethylene folded treated surface to treated surface. A cutting mechanism (14) is positioned along the path including a hard cylindrical roll (18) and a cutter (24) having a cutting head and means to bias the head toward the roll. A rotatable sealing drum (15) has a cylindrical web engaging surface delineating a further portion of the path. A set of circumferentially spaced flame-emitting nozzles (55) are positioned adjacent the drum surface section. Each of the nozzles includes a tip disposed within the cylinder delineated by said drum surface and has an axis disposed in an imaginary radial plane. Each tip is directed radially upwardly to impinge its flame against portions of a web being fed along the path when such portions project from said drum surface. Each tip axis is at an angle from 90° to 60° with an imaginary line located by the intersection of such imaginary plane with said drum surface section with the 60° orientation of the tip axis being canted toward the drum. Preferably each tip axis is canted toward the drum at an angle of from 65° to 68° with said imaginary line.

    摘要翻译: 管成型机器和方法具有用于沿着行进路径输送细长折叠塑料网(10)的供应装置。 该网可以是透明的聚乙烯折叠处理表面至处理表面。 切割机构(14)沿着包括硬质圆柱形辊(18)和切割器(24)的路径定位,所述切割器具有切割头和用于将所述压头偏向所述辊的装置。 一个可旋转的密封滚筒(15)具有一个圆柱形的纸幅接合表面,用于勾画路径的另一部分。 一组周向隔开的火焰喷射喷嘴(55)位于鼓表面部分附近。 每个喷嘴包括设置在由所述鼓表面描绘的圆筒内的尖端,并且具有设置在假想径向平面中的轴线。 当这些部分从所述鼓表面突出时,每个尖端径向向上指向,以使其火焰撞击沿路径供给的幅材部分。 每个尖端轴线与由该虚拟平面与所述鼓表面区段的交点定位的假想线成90°至60°的角度,其中尖端轴线的60°定向朝向鼓倾斜。 优选地,每个尖端轴线以与所述假想线成65°至68°的角度朝向鼓倾斜。

    Method and apparatus for sealing interconnected coverings
    95.
    发明公开
    Method and apparatus for sealing interconnected coverings 失效
    密封互连覆盖物的方法和装置

    公开(公告)号:EP0381128A3

    公开(公告)日:1991-08-07

    申请号:EP90101776

    申请日:1990-01-30

    申请人: GRAMMER AG

    发明人: PAJER, PAVEL

    摘要: Es wird ein Verfahren und eine Vorrichtung zum Abdichten der Nähte (48) mehrteiliger Bezüge hinterschäumter Polsterteile mit einem Abdichtband (18) beschrieben, das entlang der gemeinsamen Naht (48) auf die an die Naht angrenzenden Randabschnitte (40) der Bezugsteile (28) des Bezuges aufgebracht und mit den Randabschnitten (40) abdichtend verbunden wird. Die Bezugsteile (28) werden mit ihren Randabschnitte (40) umgefaltet, wobei die Naht (48) die Faltkante bildet. Desgleichen wird das Abdichtband (18) in seiner Längsrichtung umgefaltet, und das umgefaltete Abdichtband (18) wird an den umgefalteten Randabschnitten (40) der Bezugsteile (28) angeordnet und mit den umgefalteten Randabschnitten (40) abdichtend verbunden.

    摘要翻译: 描述了一种用于密封具有密封带(18)的泡沫缓冲部件的多部分覆盖物的接缝(48)的方法和装置,其沿着公共接缝(48)施加到覆盖部分的边缘部分(40) (28),并且密封地连接到边缘部分(40)。 覆盖部分(28)与其边缘部分(40)折叠,接缝(48)形成折叠边缘。 同样地,密封带(18)在其纵向方向上折叠,并且折叠密封带(18)布置在覆盖部分(28)的折叠边缘部分(40)上并且密封地连接到折叠 (40)。

    Welding thermoplastics material
    96.
    发明公开
    Welding thermoplastics material 失效
    Schweissen von thermoplastischen Materialien。

    公开(公告)号:EP0327256A2

    公开(公告)日:1989-08-09

    申请号:EP89300753.4

    申请日:1989-01-26

    发明人: Abrams, Jack S.

    摘要: A method of welding at least two layers (18, 20) of thermoplastic material, e.g. polyethylene terephthalate or polyporopylene, and a weld (30) so produced comprises directing a jet of hot gas from a nozzle (10), through a hole (16) in an inlet mask (16), and against the layers (18, 20). The layers (18, 20) are backed by an outlet mask (22) having a hole (26) and serving as a heat sink. The inlet mask (16), the layers (18, 20), and the outlet mask (22) are clamped together. A transverse weld (30) is formed entirely of the material of the layers (18, 20). The weld (30) has a columnar shape with an enlarged end (32′), which is cold-headed. The opposite end of the weld is level with or depressed with respect to marginal surfaces of the adjacent layer (18, 20). If the material is crystallizable, the weld may be more crystalline than other portions of the layers.

    摘要翻译: 焊接至少两层(18,20)热塑性材料的方法,例如, 聚对苯二甲酸乙二醇酯或聚异戊烯,以及如此制造的焊缝(30)包括将来自喷嘴(10)的热气体射流引导通过入口掩模(​​16)中的孔(16)并且抵靠层(18,20) 。 层(18,20)由具有孔(26)并用作散热器的出口掩模(22)支撑。 入口掩模(​​16),层(18,20)和出口掩模(22)被夹紧在一起。 横向焊缝(30)完全由层(18,20)的材料形成。 焊缝(30)具有冷却头部的扩大端部(32分​​钟)的柱状。 焊缝的相对端相对于相邻层(18,20)的边缘表面是平坦的或凹陷的。 如果材料是可结晶的,焊缝可能比层的其它部分更结晶。

    Apparatus and method for fusion joining plastic pipe
    98.
    发明公开
    Apparatus and method for fusion joining plastic pipe 失效
    Vorrichtung und Verfahren zum Schmelzverbinden von Kunststoffrohren。

    公开(公告)号:EP0263980A2

    公开(公告)日:1988-04-20

    申请号:EP87113302.1

    申请日:1987-09-11

    IPC分类号: B29C65/02 B29C65/10

    摘要: Apparatus and method are disclosed for fusion joining first and second axially abutted thermo-plastic piping system component connection ends that are in axial and circumferential alignment. The joining apparatus includes apparatus for enabling the heating of a melt region in the proximity of the interface of the first and second piping system component connection ends at least to the material softening point of the thermo-plastic material of the melt region, and further includes vacuum­metric apparatus for vacuummetrically inducing outward translation of the melted material of the melt region. The method includes the steps of (a) heating a melt region in the proximity of the interface of the first and second piping system component connection ends at least to the material softening point of the thermo-plastic material of the melt region, and (b) vacuummetrically inducing outward translation of the melted material of the melt region.

    摘要翻译: 公开了用于熔融连接第一和第二轴向邻接的热塑管道系统部件连接端部的装置和方法,所述部件连接端部处于轴向和圆周对准。 接合装置包括用于使第一和第二管道系统部件连接端部的界面附近的熔融区域至少加热到熔融区域的热塑性材料的材料软化点的装置,并且还包括 真空测量装置,用于真空测量熔融区熔融材料的向外平移。 该方法包括以下步骤:(a)将第一和第二管道系统部件连接端部的界面附近的熔融区域至少加热到熔融区域的热塑性材料的材料软化点,和(b )真空测量地引起熔融区域的熔融材料的向外平移。