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公开(公告)号：US4523978A
公开(公告)日：1985-06-18
申请号：US490043
申请日：1983-04-29
申请人： Martti Pullinen
发明人： Martti Pullinen
摘要： A forming shoe in a two-wire forming section of a paper making machine has a curved guiding surface which guides a joint run of the wires and web interposed therebetween over a curved path of travel wherein the web is dewatered under the effect of the pressure between the wires at least in a direction away from the forming shoe, the dewatering action being assisted by the curvature of the forming shoe due to centrifugal forces. According to the invention, the length of the active portion of the forming shoe guiding surface, the surface quality or characteristics of the guiding surface and/or the radius of curvature of the guiding surface are adjustable so that web formation and the dewatering capacity of the forming shoe are controlled. For this purpose one or more devices are coupled to the forming shoe by which the attitude and/or location thereof is adjustable. In one embodiment a device is provided between the frame of the forming section and that of the forming shoe for pivoting the forming shoe about a horizontal axis and/or displacing the forming shoe linearly with respect to the vertical and/or horizontal plane.
摘要翻译： 造纸机的两线成形部分中的成形靴具有弯曲的引导表面，该引导表面引导电线和腹板之间的连接行程在弯曲的行进路径上，其中幅材在其间的压力作用下脱水 所述电线至少沿远离所述成形鞋的方向移动，所述脱水动作由于离心力由所述成形鞋的曲率辅助。 根据本发明，成形靴引导表面的有效部分的长度，引导表面的表面质量或特性和/或引导表面的曲率半径是可调节的，使得网的形成和脱水能力 成形鞋被控制。 为此目的，一个或多个装置联接到成形靴，其中姿态和/或位置可调整。 在一个实施例中，装置设置在成形部分的框架和成形靴的框架之间，用于使成形靴绕水平轴线枢转和/或相对于垂直和/或水平平面线性移动成形靴。
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公开(公告)号：US4856155A
公开(公告)日：1989-08-15
申请号：US124241
申请日：1987-11-23
申请人： Juhani Niskanen , Martti Pullinen
发明人： Juhani Niskanen , Martti Pullinen
CPC分类号： F16C13/028 , B30B3/005 , D21G1/002 , D21G1/022
摘要： Method in an adjustable-crown roll, in which a series of hydraulic loading elements is used. A central axle of the roll is supported by axle journals, by means of deflection bearings. A cross-section of the central axle is shaped such that the axle has sufficiently high rigidity in a nip plane. In the method, the central axle is rotated about its deflection bearings over an angle, which may be within the range of about 30.degree. to 180.degree.. A free space that is created or enlarged between the central axle and a roll mantle thereby, and provided between the central axle and an inner surface of the roll mantle, is utilized as an opening gap for the nip formed by the variable-crown roll, by allowing the roll mantle to be shifted, e.g. by the effect of gravity, or by affirmatively shifting the mantle relative to the rotated central axle.
摘要翻译： 一种可调冠辊的方法，其中使用一系列液压装载元件。 辊的中心轴由轴颈支撑，通过偏转轴承支撑。 中心轴的横截面成形为使得轴在压区中具有足够高的刚性。 在该方法中，中心轴围绕其偏转轴承旋转一角度，该角度可以在大约30°至180°的范围内。 在中心轴和辊罩之间产生或扩大的，并且设置在中心轴和辊套的内表面之间的自由空间用作由可变冠辊形成的辊隙的开口间隙， 通过允许辊罩移动，例如 通过重力的作用，或通过相对于旋转的中心轴肯定地移动地幔。
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公开(公告)号：US4757782A
公开(公告)日：1988-07-19
申请号：US892838
申请日：1986-08-04
申请人： Martti Pullinen
发明人： Martti Pullinen
IPC分类号： B05C20060101 , B05C5/02 , B05C11/02 , B05C11/04
CPC分类号： D21H23/40 , D21H5/0015
摘要： Apparatus for coating a web, such as paper or board web, comprises a coating nip formed between a rotating counter roll and a smoothing member, or between two smoothing members, through which the web to be coated is passed with a coating substance being applied to the web before it passes through the nip. The apparatus comprises an arrangement by which the linear load and/or the distribution of the linear load in the coating nip is adjustable to control the quantity and/or the distribution of the quantity of the coating substance applied to the web in the transverse direction thereof. A smoothing member comprises an elongate member extending transversely to the direction of web movement through the apparatus and is flexible with respect to its longitudinal dimension so that the profile of the load distribution in the nip can be adjusted to be relatively steep, i.e, the load in the nip may differ relatively widely at points which are relatively close to each other. An arrangement is provided for selectively variably adjusting the load applied to the smoothing member along its longitudinal dimension.
摘要翻译： 用于涂布纸幅（例如纸或纸幅）的装置包括形成在旋转的反向辊和平滑部件之间的涂覆辊隙，或两个平滑部件之间，待涂布的纸幅通过涂布物质被施加到涂覆物质上 网络通过夹点。 该装置包括一种布置，通过该布置可以调整涂层辊隙中的线性载荷的线性载荷和/或分布，以控制在横向上施加到卷材的涂布物质的量和/或分布 。 平滑构件包括细长构件，其横向于通过装置的幅材运动方向延伸，并且相对于其纵向尺寸是柔性的，使得压区中的负载分布的轮廓可以被调整为相对陡峭，即负载 在相对较近的点处，辊隙可能会相对较宽。 提供了一种布置，用于沿其纵向尺寸选择性地可变地调节施加到平滑构件的载荷。
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公开(公告)号：US4744866A
公开(公告)日：1988-05-17
申请号：US840534
申请日：1986-03-17
申请人： Martti Koponen , Martti Pullinen , Erkki Koski , Jouni Koskimies
发明人： Martti Koponen , Martti Pullinen , Erkki Koski , Jouni Koskimies
摘要： A web-forming method is applied in a paper machine. The web-forming section which includes a lower wire loop having an initial single-wire run and dewatering zone in which the web is dewatered through and an upper wire loop having a joint run with a subsequent run of the lower wire to form a two-wire dewatering zone within which dewatering takes place substantially through the upper wire. A first open faced forming roll is situated within the upper wire loop so that the two-wire dewatering progress begins upwardly in the region of the first forming roll. A forming shoe within the lower wire loop has a curved deck whose center of curvature is situated on the side of the lower wire loop and further guides the joint run of the upper and lower wires in the two-wire dewatering zone. A second forming roll situated within the lower wire loop after the forming shoe guides the joint run of the upper and lower wires over a downwardly curved sector thereof. According to the method, initial dewatering occurs in the single-wire dewatering zone through the lower wire. In the two-wire dewatering zone, within the range of the first and second forming rolls and the forming shoe situated therebetween, dewatering occurs first within the sector of the first open forming roll in two directions through both the upper and lower wires and primarily through the upper wire. The web is thus substantially dewatered whereupon within the region of the forming shoe, further dewatering takes place primarily upwardly through the upper wire and thereupon the dewatering pressure is further increased within the range of the second forming roll while dewatering continues to take place substantially through the upper wire.
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公开(公告)号：US4614566A
公开(公告)日：1986-09-30
申请号：US575543
申请日：1984-01-31
申请人： Martti Koponen , Martti Pullinen , Erkki Koski , Jouni Koskimies
发明人： Martti Koponen , Martti Pullinen , Erkki Koski , Jouni Koskimies
摘要： A web-forming section and method in a paper machine. The web-forming section includes a lower wire loop having an initial lower wire run constituting an initial single-wire dewatering zone of the web-forming section in which the web is dewatered through the lower wire, and an upper wire loop having a joint run with a subsequent run of the lower wire to form a two-wire dewatering zone of the web-forming section within which dewatering takes place substantially through the upper wire. A first open faced forming roll is situated within the upper wire loop so that the two-wire dewatering zone begins and curves upwardly in the region of the first forming roll. A forming shoe within the lower wire loop has a curved deck whose center of curvature is situated on the side of the lower wire loop and further guides the joint run of the upper and lower wires in the two-wire dewatering zone. A second forming roll situated within the lower wire loop after the forming shoe guides the joint run of the upper and lower wires over a downwardly curved sector thereof. According to the method, initial dewatering occurs in the single-wire dewatering zone through the lower wire. In the two-wire dewatering zone, within the range of the first and second forming rolls and the forming shoe situated therebetween, dewatering occurs first within the sector of the first open forming roll in two directions through both the upper and lower wires and primarily through the upper wire. The web is thus substantially dewatered whereupon within the region of the forming shoe, further dewatering takes place primarily upwardly through the upper wire and thereupon the dewatering pressure is further increased within the range of the second forming roll while dewatering continues to take place substantially through the upper wire.
摘要翻译： 纸机中的卷筒纸成型部和方法。 卷筒纸形成部分包括下线环，其具有构成卷筒纸形成部分的初始单丝脱水区的初始下丝线，其中网通过下线脱水;以及上线环，其具有接合线 随后下游丝线形成网状物形成部分的双线脱水区，其中基本上通过上部线材进行脱水。 第一露面成形辊位于上部线环内，使得两线脱水区在第一成形辊的区域中开始并向上弯曲。 下线环内的成形靴具有弯曲的甲板，其曲率中心位于下线环的侧面，并进一步引导上下两根丝线在双线脱水区的连接行程。 在成形靴之后位于下部线环内的第二成形辊引导上下电线在其向下弯曲的部分上的接合行程。 根据该方法，通过下线在单线脱水区发生初始脱水。 在双线脱水区域中，在第一成形辊和第二成形辊以及位于它们之间的成形靴的范围内，首先在第一开放成形辊的扇区内沿两个方向穿过上部和下部导线首先脱水，并且主要通过 上线。 因此，网状物基本上脱水，因此在成型鞋的区域内进一步脱水通过上部线材主要向上发生，并且随后脱水压力在第二成形辊的范围内进一步增加，同时脱水继续基本上通过 上线。
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