Papermaking machines
    1.
    发明授权
    Papermaking machines 失效
    造纸机

    公开(公告)号:US4207144A

    公开(公告)日:1980-06-10

    申请号:US2319

    申请日:1979-01-10

    CPC分类号: D21F9/02 D21F1/48

    摘要: A papermaking machine is shown with an inner traveling screen and an outer traveling screen which are led towards each other to form a generally layered arrangement therebetween during a region of their joint travel and, in such region, the inner and outer screens are caused to pass over a portion of a water extracting or dewatering roller; a water collection apparatus situated outside of the roller serves to collect water centrifuged from the screens passing over the roller; and a preliminary water extraction zone preceeds the roller and such zone extends over a portion of, for example, a generally horizontal section of the inner screen.

    摘要翻译: 示出了具有内部移动屏幕和外部移动屏幕的造纸机,它们在其接合行进的区域期间相互引导以在它们之间形成大致分层的布置,并且在该区域中使内部和外部屏幕通过 超过一部分取水或脱水辊; 位于辊外侧的收集装置用于收集从通过辊子的筛网离心的水; 并且初步的水提取区超过辊子,并且该区域延伸超过例如内屏幕的大致水平部分的一部分。

    Paper machine including a horizontal suction forming cylinder having multiple dewatering areas thereon
    2.
    发明授权
    Paper machine including a horizontal suction forming cylinder having multiple dewatering areas thereon 失效
    造纸机械包括一台卧式吸气成型缸,具有多个脱水区域

    公开(公告)号:US3671388A

    公开(公告)日:1972-06-20

    申请号:US3671388D

    申请日:1969-07-18

    申请人: TAMPELLA OY AB

    发明人: NYKOPP ERIK A

    IPC分类号: D21F9/04 D21F1/60 D21H1/06

    CPC分类号: D21F9/04

    摘要: The paper machine comprises a horizontal cylinder, a slurry feed box opening onto the top side of the cylinder and the upper rim of the feed slice of which has been continued in order to form a roof-like upper lip between the feed slice and a feed roll placed on the cylinder at an approximate distance from the feed box in the direction of slurry flow, an endless felt or wire running from the feed roll along the cylinder towards the lower part of the same, an appropriate number of guiding and tension rolls for conducting said felt or wire back to the feed roll, a suction box or suction roll placed on the side of the feed roll opposite to that facing the cylinder and at the point where the slurry web and felt or wire depart from the cylinder surface, and possibly a compressed air box or equivalent placed above the felt or wire and after the feed roll, as seen in the direction of travel of the wire, approximately coincident with the gap remaining between the roof-like upper lip of the feed box and the wire. The horizontal cylinder is a suction cylinder which has therein a suction zone extending substantially from and including the upper roof-like lip continuously to the suction box or suction roll. The upper roof-like lip and suction cylinder form a first drying area for the slurry to form a partially dewatered web while the belt thereafter contacts the web against the surface of the suction cylinder over a major portion of the descending surface of the suction cylinder to form a second drying area in which suction and centrifugal force act upon the web to remove additional water.

    Multilayer papermaking machine with impervious roll web former
    3.
    发明授权
    Multilayer papermaking machine with impervious roll web former 失效
    具有不正确的卷筒纸的多层造纸机

    公开(公告)号:US3625814A

    公开(公告)日:1971-12-07

    申请号:US3625814D

    申请日:1969-06-13

    发明人: NOYER DONALD B DE

    IPC分类号: D21F11/04 D21H1/06

    CPC分类号: D21F11/04

    摘要: A portion of a papermaking machine is disclosed having several web-forming units in series for making heavy or multilayer paper. Each forming unit includes a headbox mounted above an impervious forming roll for discharging pulp into a nip between a pair of belts coming together and lapping a down turning side of the forming roll. Both belts may be wire fabrics or, preferably, one belt is a felt fabric making contact with the forming roll and the other belt is a wire and arranged radially outward of the felt. The pulp is formed into a web sandwiched between the radially inner felt and radially outer wire and water is squeezed from the pulp web outwardly through the wire. At the bottom of the forming roll the felt is located over the web and wire, and the felt-web-wire is removed from the forming roll and turned downwardly away from the forming roll and inverted to place the wire and web on top of the felt. The wire is lifted from the web and looped back to the forming roll while the web remains on top of the felt and is carried thereby through successive similar forming units for applying additional layers of pulp to the web.

    Method of and apparatus for forming sheets of fibrous material between
converging sieves
    4.
    发明授权
    Method of and apparatus for forming sheets of fibrous material between converging sieves 失效
    在收敛筛之间形成纤维材料片的方法和装置

    公开(公告)号:US4048008A

    公开(公告)日:1977-09-13

    申请号:US658079

    申请日:1976-02-13

    CPC分类号: D21F9/003 D21F11/04 D21F9/006

    摘要: A technique for forming single or multi-layer sheets of fibrous material having a controllable fiber distribution is described. A pair of spraying rollers each having a system of circumferentially spaced radial vanes on its surface are supported within the upper portion of a working zone defined between a pair of continually advancing, downwardly converging sieves that are disposed symmetrical to a longitudinal axis. The rollers are rotated in respectively opposite directions to intercept at least one fibrous suspension downwardly directed into the working zone, and to thereafter propel the intercepted liquid outwardly and downwardly toward the sides of the working zone in symmetrical fashion. The fibrous layers thus built up on the advancing sieves converge into the final sheet in the lower portion of the working zone. Separate facilities are associated with the upper and lower portions of the working zone for drawing liquid from the formed layers outwardly through the sieves.

    摘要翻译: 描述了一种用于形成具有可控纤维分布的单层或多层纤维材料片的技术。 一对喷涂辊各自具有在其表面上具有周向间隔开的径向叶片的系统,其被支撑在工作区域的上部内,该工作区域被限定在与纵向轴线对称设置的一对连续前进的向下收敛的筛子之间。 辊分别沿相反的方向旋转以拦截至少一个向下引导到工作区域中的纤维悬浮液,然后以对称的方式将被截留的液体向着和向下朝向工作区的侧面推进。 由此构建在前进筛上的纤维层在工作区的下部会聚到最终的片材中。 单独的设施与工作区的上部和下部相关联,用于将液体从成形层向外抽出通过筛子。

    Apparatus for producing separate paper webs and combining them on a common porous belt
    5.
    发明授权
    Apparatus for producing separate paper webs and combining them on a common porous belt 失效
    用于生产单独纸巾和组合在普通多孔皮带上的装置

    公开(公告)号:US3681193A

    公开(公告)日:1972-08-01

    申请号:US3681193D

    申请日:1970-02-20

    申请人: TAMPELLA OY AB

    发明人: NYKOPP ERIK A

    CPC分类号: D21F11/04

    摘要: A compound paper machine system for producing multi-layer paper webs which includes several web forming units and a common endless lower wire or felt therebeneath on which the individual webs are deposited. Each web forming unit may comprise a forming cylinder on which slurry is deposited from a headbox and a separate endless wire or felt which laps part of the upper surface of each cylinder and which is guided so as to deposit the individually formed webs onto the common endless lower wire or felt. Optionally the separate lapping wires or felts for each unit can be a single porous belt.

    Twin-wire fibrous web former and method
    6.
    发明授权
    Twin-wire fibrous web former and method 失效
    双丝纤维网前体和方法

    公开(公告)号:US4153504A

    公开(公告)日:1979-05-08

    申请号:US764445

    申请日:1977-01-31

    申请人: Edgar J. Justus

    发明人: Edgar J. Justus

    摘要: A fibrous web is continuously formed between inner and outer endless foraminous forming belts between which stock slurry is fed from a headbox, the belts being held in tension as they wrap a first convexly curved forming run surface from which the outer belt is separated immediately following the forming run, the inner belt carrying the wet web then running over a second convexly curved surface from the offrunning side of which the inner belt is then separated and a porous pickoff belt is pressed by a substantial convex area of an imperforate pickup roll against the wet web on the inner belt, the inner belt being guided to diverge from the pickoff belt commencing at the off-running end of the convex area of contact of the pickup roll and the wet web being forced to adhere to the pickoff belt by the vacuum action of the imperforate surface of the pickup roll. By multiplication of the apparatus a multiply web can be formed. Either top delivery or bottom delivery of the wet formed web to the pickoff belt is provided for.

    摘要翻译: 纤维网连续地形成在内,外环形多孔成形带之间,浆料从流浆箱送入其间,当皮带包裹第一凸形弯曲的成形流动表面时,带被保持在张紧状态 携带湿纸幅的内带然后从其越过侧的第二凸形曲面延伸,然后分离内带,并且多孔拾取带被无孔拾取辊的基本上凸起的区域压靠在湿的 在内皮带上,内带被引导以从拾取辊的凸起区域的脱离端开始的拾取带发散,并且通过真空动作迫使湿纸幅粘附到拾取带上 的拾取辊的无孔表面。 通过设备的乘法,可以形成多重网。 提供湿式成网的顶部输送或底部输送到拾取带。

    Method of and means for forming multi-ply paper webs from a single
headbox
    7.
    发明授权
    Method of and means for forming multi-ply paper webs from a single headbox 失效
    从单个流浆箱形成多层纸幅的方法和装置

    公开(公告)号:US4141788A

    公开(公告)日:1979-02-27

    申请号:US902116

    申请日:1978-05-02

    申请人: Edgar J. Justus

    发明人: Edgar J. Justus

    CPC分类号: D21F1/02 D21F1/028 D21F9/006

    摘要: Multi-ply web forming stock jets directed through a slice from a single headbox into a forming zone between converging forming surfaces in a papermaking machine are maintained separated for a sufficient interval after leaving the slice opening to permit drainage and partial ply formation of the stock delivered by one of the stock jets to one of the forming surfaces before the stock in a second of the stock jets joins in fiber felting laminar relation with the contiguous surface of the partially formed ply. Flexible divider sheet members divide the slice chamber of a headbox into separate flow passages aligned respectively with different ones of headbox subchambers to receive streams of the stock from the respective subchambers and maintain the streams separated, and the flexible members extend a substantial distance out of the slice opening in the direction of flow of the stock jets to maintain stock jets separated for a sufficient interval after leaving the slice opening.

    摘要翻译: 通过切片从单个流浆箱引导到造纸机中的收敛成形表面之间的成形区域的多层网状成形股料流在离开切片开口之后保持分开足够的间隔,以允许排出和部分层层形成所递送的原料 通过其中一个股票喷射到一个成形表面之前,在第二个股票射流中的股票与部分形成的层的连续表面以纤维毡化层状关系连接。 柔性分隔板构件将流浆箱的切片室分成分别与不同的流浆箱子室对齐的流动通道,以从相应的副室接收原料的流并且保持流分离,并且柔性构件从 在股票射流的流动方向上切片打开以保持股票射流在离开切片开口之后分开足够的间隔。

    Apparatus for applying secondary layer on board surface
    8.
    发明授权
    Apparatus for applying secondary layer on board surface 失效
    用于在板表面上施加二次层的装置

    公开(公告)号:US4089740A

    公开(公告)日:1978-05-16

    申请号:US653810

    申请日:1976-01-30

    摘要: Method and apparatus for applying a secondary layer or coating on surfaces of wet formed board materials are disclosed. The secondary layer is applied to the wet mat material of the board being manufactured during press rolling of the wet mat. The secondary layer material is supplied in the form of a slurry which is caused to adhere to the surface of a wire screen. The wire screen surface bearing the layer of slurry material is then pressed onto the mat surface to deposit the slurry layer thereon.

    摘要翻译: 公开了在湿成型板材料的表面上施加二次层或涂层的方法和装置。 第二层被施加到在湿垫的压制过程中制造的板的湿垫材料。 二次层材料以浆料的形式供给,其被附着在丝网的表面上。 然后将含有浆料材料层的丝网表面压在垫表面上以在其上沉积浆料层。