公开(公告)号：US6158501A

公开(公告)日：2000-12-12

申请号：US785099

申请日：1997-01-21

申请人： Pekka Koivukunnas

发明人： Pekka Koivukunnas

IPC分类号： B21B27/08 ,  B29C33/04 ,  B41F13/22 ,  D21G1/02 ,  F16C13/00 ,  F26B13/18 ,  F28F5/02

CPC分类号： B41F13/22 ,  B29C33/044 ,  D21G1/0266 ,  F16C13/00 ,  F26B13/183 ,  F28F5/02 ,  B21B2027/086

摘要： A thermally insulated thermoroll including a shaft supported by bearings with at least one longitudinal shaft channel defined in the shaft for passing a heating medium. A flange with radial bores is connected to the shaft and a shell, with at least one longitudinal shell channel for passing the heating medium, is connected to the flange such that the flange is interposed between the shaft and the shell. Together the shaft, flange and shell form a main body of the thermoroll. At least one first insulating wall and at least one second insulating wall are disposed in the main body of the thermoroll. The first and second insulating walls being joined at respective ends to form at least one hermetically sealed insulated cavity in the main body of the thermoroll. These insulating walls may be disposed around the shaft channel and/or the shell channel to thermally insulate the shaft and/or the shell. The insulated cavity may be hermetically sealed by electron beam welding in a vacuum chamber to form a vacuum within the interior or the insulated cavity.

摘要翻译： 一种隔热热力轴承，其包括由轴承支撑的轴，所述轴具有限定在轴中的用于通过加热介质的至少一个纵向轴通道。 具有径向孔的凸缘连接到轴上，并且具有至少一个用于使加热介质通过的纵向壳体通道的壳体连接到凸缘，使得凸缘插入在轴和壳体之间。 轴，法兰和壳体一起形成热滚筒的主体。 至少一个第一绝缘壁和至少一个第二绝缘壁设置在热熔丝的主体中。 第一绝缘壁和第二绝缘壁在相应的端部连接，以在热熔体的主体中形成至少一个密封的绝缘腔。 这些绝缘壁可以设置在轴通道和/或壳通道周围，以使轴和/或壳体绝热。 绝缘腔可以通过电子束焊接在真空室中而密封，以在内部或绝缘腔内形成真空。

公开(公告)号：US5438920A

公开(公告)日：1995-08-08

申请号：US168521

申请日：1993-12-16

申请人： Pekka Koivukunnas ,  Juha Lipponen

发明人： Pekka Koivukunnas ,  Juha Lipponen

IPC分类号： D21G1/00 ,  D21G1/02 ,  B30B3/04

CPC分类号： D21G1/00 ,  D21G1/004 ,  D21G1/0233 ,  D21G1/0253

摘要： A method and device for calendering of a paper or an equivalent web material, in which the web material to be calendered is passed through nips formed by a variable-crown upper roll, a variable-crown lower roll, and by two or more intermediate rolls arranged between the upper and lower rolls. The upper roll, lower roll, and intermediate rolls are arranged as a substantially vertical stack of rolls. As the intermediate rolls, rolls are used in which the form of the natural deflection line produced by their own gravity is substantially equal. The nip load produced by the masses of the intermediate rolls and the auxiliary equipment related to the intermediate rolls is substantially relieved, and almost even completely relieved. An adjustable load is applied to the calendering nips by the variable-crown upper roll or lower roll and/or by an external load applied to the upper or lower roll.

摘要翻译： 用于压延纸张或等效网状材料的方法和装置，其中待压延的幅材材料通过由可变冠上辊，可变冠下辊和由两个或更多个中间辊形成的辊隙 布置在上辊和下辊之间。 上辊，下辊和中间辊被布置为基本垂直的卷筒。 作为中间辊，使用由自身重力产生的自然偏转线的形状基本相等的辊。 与中间辊相关的中间辊和辅助设备的质量产生的辊隙负荷基本上减轻了，几乎甚至完全释放。 通过可变冠上辊或下辊和/或通过施加到上辊或下辊的外部负载将调节负载施加到压延辊隙。

公开(公告)号：US4858553A

公开(公告)日：1989-08-22

申请号：US077250

申请日：1987-07-24

申请人： Sivert Westergard ,  Pekka Koivukunnas

发明人： Sivert Westergard ,  Pekka Koivukunnas

IPC分类号： B05C5/02 ,  B05C11/04 ,  B05C11/10

CPC分类号： D21H23/40 ,  B05C11/041 ,  D21H5/0015

摘要： A short-dwell coater comprises of a backing roll (1) used for guiding a paper web (1), with an upper lip (28) and a lower lip (28) forming a nozzle apparatus. This nozzle apparatus can apply the coating mix on the paper web while the web is backed by the surface of the backing roll. A doctoring member with which the excess mix applied with the nozzle apparatus can be doctored is also provided as well as a mounting fixture, to which the doctoring member is mounted, and a support structure, with which the fixture is supported. In the short-dwell further comprises an actuator, to which the nozzle apparatus is attached so that the apparatus is movable in relation to the doctoring member in order to adjust the dwell length between the doctoring member and the nozzle apparatus.

摘要翻译： 短暂涂布机包括用于引导纸幅（1）的背衬辊（1），上唇部（28）和形成喷嘴装置的下唇部（28）。 该喷嘴装置可以在纸幅由背衬辊的表面支撑的同时将涂布混合物施加在纸幅上。 也可以设置与喷嘴装置一起施加过量混合物的刮刀部件，以及安装有刮刀部件的安装夹具以及固定装置支撑的支撑结构。 在短暂停留中还包括致动器，喷嘴装置附接到致动器，使得该装置相对于刮刀部件可移动，以便调节刮刀部件和喷嘴装置之间的停留长度。