公开(公告)号：US4923567A

公开(公告)日：1990-05-08

申请号：US295292

申请日：1989-01-10

申请人： Allan Liedes ,  Heikki Ilvespaa ,  Olavi Viitanen

发明人： Allan Liedes ,  Heikki Ilvespaa ,  Olavi Viitanen

IPC分类号： D21G9/00

CPC分类号： D21G9/0063

摘要： Method and apparatus for guiding and directing an end conduction strip of a web from a smooth-surfaced roll, such as a paper web in a press. The end conduction strip is detached from the smooth surface of the roll and further guided by utilizing a guide plate and air blowing actions. An air jet having sufficiently great impulse is directed against the end conduction strip on the roll surface. The end conduction strip is cut with the aid of this air jet and a leading edge thereof is detached by this air jet from the roll surface. The detached end conduction strip is further guided and conveyed forwardly by a transfer blowing action. This transfer blowing action is directed along the guide plate. An under-pressure field is produced in conjunction with the guide plate, by effect of the blowing action. The effect of this under-pressure field causes the end conduction strip to be further guided in a direction determined by the guide plate.

公开(公告)号：US5172491A

公开(公告)日：1992-12-22

申请号：US513223

申请日：1990-04-23

申请人： Heikki Ilvespaa ,  Allan Liedes ,  Olavi Viitanen

发明人： Heikki Ilvespaa ,  Allan Liedes ,  Olavi Viitanen

IPC分类号： D21F5/04

CPC分类号： D21F5/042 ,  D21F5/04

摘要： A method in a drying group or groups provided with a single-wire draw in a multi-cylinder dryer of a paper machine in the draw of a web. The multi-cylinder dryer comprises drying cylinders heated by means of steam or equivalent, with the web being pressed by a drying wire against the cylinder faces of these drying cylinders. The multi-cylinder dryer has leading or lower cylinders on which the web runs outside the drying wire which is, for example, a felt. The leading cylinders or rolls are provided with holes passing through a mantle of the leading cylinders or rolls, these holes being fitted to open into an inner space of negative pressure within the leading cylinder or roll and to open, at an opposite end, into grooves provided on a mantle face of the rolls. The negative pressure inside the roll is arranged to be transmitted to the grooves provided on the outer face of the roll mantle, so that an adhesion force is applied to the web through the grooves. In the method, a negative pressure is applied to the entire inside mantle of the roll, and free flow of air is permitted through the holes from an area above the cylinder and into the interior space within the cylinder. The present invention further concerns a device for use in the single-wire draw of the multi-cylinder dryer of the paper machine, and also to a paper-machine cylinder itself.

摘要翻译： 一种干燥组中的一种方法，其在纸幅抽出的纸机的多缸干燥机中设置有单线牵引。 多缸干燥机包括通过蒸汽或等同物加热的干燥筒，其中幅材被干燥线压靠在这些干燥筒的圆柱面上。 多气缸干燥器具有引导或下部气缸，在该气缸上，幅材运行在干燥丝线的外面，例如毡。 前导滚筒或滚筒上设置有穿过前导滚筒或滚筒的外壳的孔，这些孔被装配成打开到前导滚筒或滚筒内的负压内部空间，并在另一端打开凹槽 提供在卷的地幔面上。 辊内的负压被布置成传递到设置在辊罩的外表面上的槽，使得通过槽将粘附力施加到幅材上。 在该方法中，对辊的整个内壁施加负压，并且允许空气自由流过来自圆柱体上方的孔并进入气缸内的内部空间。 本发明还涉及用于造纸机的多缸干燥机的单线牵引的装置，以及造纸机筒本身。

公开(公告)号：US5022163A

公开(公告)日：1991-06-11

申请号：US320985

申请日：1989-03-09

申请人： Heikki Ilvespaa ,  Allan Liedes ,  Olavi Viitanen

发明人： Heikki Ilvespaa ,  Allan Liedes ,  Olavi Viitanen

IPC分类号： D21F3/10 ,  D21F5/04

CPC分类号： D21F3/10 ,  D21F3/105 ,  D21F5/04 ,  D21F5/042

摘要： A method in a drying group or groups provided with a single-wire draw in a multi-cylinder dryer of a paper machine in the draw of a web. The multi-cylinder dryer comprises drying cylinders heated by means of steam or equivalent, with the web being pressed by a drying wire against the cylinder faces of these drying cylinders. The multi-cylinder dryer has leading or lower cylinders on which the web runs outside the drying wire which is, for example, a felt. The leading cylinders or rolls are provided with holes passing through a mantle of the leading cylinders or rolls, these holes being fitted to open into an inner space of negative pressure within the leading cylinder or roll and to open, at an opposite end, into grooves provided on a mantle face of the rolls. The negative pressure inside the roll is arranged to be transmitted to the grooves provided on the outer face of the roll mantle, so that an adhesion force is applied to the web through the grooves. In the method, a negative pressure is applied to the entire inside mantle face of the roll, and free flow of air is permitted through the holes from an area above the cylinder and into the interior space within the cylinder. The present invention further concerns a device for use in the single-wire draw of the multi-cylinder dryer of the paper machine, and also to a paper-machine cylinder itself.

公开(公告)号：US5024729A

公开(公告)日：1991-06-18

申请号：US567106

申请日：1990-08-14

申请人： Antti Kuhasalo ,  Olavi Viitanen ,  Heikki Ilvespaa

发明人： Antti Kuhasalo ,  Olavi Viitanen ,  Heikki Ilvespaa

IPC分类号： D21F3/10

CPC分类号： D21F3/10

摘要： The invention relates to a suction roll (10) comprising a turbulence suppression element (16) located in the vicinity of the end of an external suction pipe (15). The turbulence suppression element (16) comprises at least one sheet member and is fitted relative to the end of the suction pipe (15) in such a way that turbulence in the intake air during the suction phase is substantially prevented and that a low air pressure is thus maintained at a desired, approximately constant value on the inner surface of the roll shell along the entire roll width and the quantity of suction air is also maintained at a desired, approximately constant value through the perforated sections (14) of the roll shell.

公开(公告)号：US4542593A

公开(公告)日：1985-09-24

申请号：US584340

申请日：1984-02-28

申请人： Olavi Viitanen ,  Reima Kerttula

发明人： Olavi Viitanen ,  Reima Kerttula

IPC分类号： D21F5/02 ,  F26B13/18

CPC分类号： D21F5/021

摘要： Apparatus for increasing the turbulence of a condensate layer formed on the inner surface of a mantle of a drying cylinder for use in the drying seciton of a paper machine to improve its heat transfer characteristics include a plurality of turbulence ribs atached to the inner mantle surface by a plurality of attachment bands, each attachment band being constituted by an assembly of at least three band parts. Spring devices are associated with pairs of adjacent free ends of the band parts of each attachment band to urge the adjacent free ends away from each other. The spring devices are tensioned by tensioning devices and the turbulence ribs are attached to the bands, which are preferably evenly space throughout the axial length of the mantle, by corresponding projections and cavities. The apparatus is installed according to a method wherein the band parts are inserted through an access opening provided in the drying cylinder mantle whereupon the attachment bands are assembled from the band parts within the cylinder mantle. The spring devices of at least one central attachment band are tensioned at a higher tensioning force than the other lateral bands.

摘要翻译： 用于增加用于造纸机干燥段的烘缸的内表面上形成的冷凝层的湍流以提高其传热特性的装置包括多个湍流肋，其通过 多个连接带，每个连接带由至少三个带部分组成。 弹簧装置与每个连接带的带部分的相邻的自由端的对相关联，以将相邻的自由端推离彼此。 弹簧装置通过张紧装置张紧，并且湍流肋被附接到带，优选地通过相应的突起和空腔在罩的整个轴向长度上均匀地间隔开。 该装置根据一种方法安装，其中带部件通过设置在干燥筒罩中的进入开口插入，随后从气缸套中的带部件组装附接带。 至少一个中心连接带的弹簧装置以比其他横向带更高的张紧力张紧。

公开(公告)号：US5115581A

公开(公告)日：1992-05-26

申请号：US668082

申请日：1991-03-12

申请人： Olavi Viitanen

发明人： Olavi Viitanen

IPC分类号： D21F5/04

CPC分类号： D21F5/042

摘要： A beam construction used in the area of single-draw of the drying wire (13) in a paper machine or the equivalent thereof is placed in proximity of the straight joint run of the drying wire (13) and the web (W) between the drying cylinder (10) and the leading cylinder (12) or roll on a sector (a) of the leading cylinder (12) or roll that is otherwise free from the drying wire (13). The beam construction comprises a static closing-suction beam (20) with no blowing members. The closing-suction beam (20) covers the drying wire (13) which runs form the drying cylinder (10) onto the subsequent leading cylinder (12) or roll, the web (W) being placed on the opposite face of said wire (13). At the inlet edges of the closing-suction beam (20) transverse seals (27,28) are placed against the drying wire (13) and the leading cylinder (12) as well as lateral seals (25, 25a) at the ends of the closing-suction beam (20). These prevent the access of air into the spaces (14,15) between the closing-suction beam (20) and the drying wire (13) and the leading cylinder (12). Negative pressure is produced in the latter spaces (14,15) and in the inlet nip (N+) between the leading cylinder (12) and the drying wire (13) by the intermediate of perforations (12c) in the mantle (12b) of the leading cylinder (12) out of the negative pressure prevailing inside the mantle (12b) of the leading cylinder (12).

公开(公告)号：US5230169A

公开(公告)日：1993-07-27

申请号：US832355

申请日：1992-02-07

申请人： Erkki Jaatinen ,  Kalervo Jussila ,  Esa Moilanen ,  Olavi Viitanen

发明人： Erkki Jaatinen ,  Kalervo Jussila ,  Esa Moilanen ,  Olavi Viitanen

IPC分类号： D21F5/02 ,  D21F5/08 ,  D21F5/10

CPC分类号： D21F5/021 ,  D21F5/08 ,  D21F5/10

摘要： The invention concerns a steam and condensate coupling for a drying cylinder in a paper machine. The steam and condensate coupling includes a piston ring having a seal therein. This stationary, nonrevolving seal is pressed by means of steam pressure against the revolving axle or against a flange part or equivalent permanently connected to said axle. A piston ring is located in the coupling, which includes a face placed substantially perpendicularly to an axial direction of the cylinder, or slightly inclined from the perpendicular plane. In the coupling construction, steam pressure is passed onto the face of the piston ring, and a force is produced. By this force, the piston ring and the seal are pressed toward the revolving axle. Thereby, by means of the steam pressure, a pressure-tight joint is provided between the seal and the revolving axle.

公开(公告)号：US5674363A

公开(公告)日：1997-10-07

申请号：US269345

申请日：1994-06-30

申请人： Jyrki Huovila ,  Petri Nyberg ,  Olavi Viitanen

发明人： Jyrki Huovila ,  Petri Nyberg ,  Olavi Viitanen

IPC分类号： D21F1/02 ,  D21F1/06 ,  D21F1/08

CPC分类号： D21F1/022 ,  D21F1/02 ,  D21F1/026 ,  D21F1/06 ,  D21F1/08

摘要： A method in the regulation of a pulp suspension flow through the headbox of a paper machine/board machine wherein an additional flow is introduced into the pulp suspension at different points across the width of the headbox. The concentration of the additional flow is regulated by a mixer unit which includes a displaceable distributor part such that when the mixing ratio is being regulated, the flow resistances of the component flows, of the additional flow, entering into the mixer unit are adjusted by displacing the distributor part of the mixer unit in a chamber of the mixer unit.

摘要翻译： 调节通过造纸机/板机的流浆箱的纸浆悬浮液流动的方法，其中在流浆箱的宽度上的不同点将额外的流体引入纸浆悬浮液中。 附加流量的浓度由包括可移位的分配器部分的混合器单元调节，使得当调节混合比时，附加流入的组分流动的流动阻力进入混合器单元通过置换 混合器单元的分配器部分在混合器单元的室中。

公开(公告)号：US5635034A

公开(公告)日：1997-06-03

申请号：US637554

申请日：1996-04-25

申请人： Olavi Viitanen ,  Raimo Virta

发明人： Olavi Viitanen ,  Raimo Virta

IPC分类号： D21F3/10

CPC分类号： D21F3/10

摘要： A method for removing air from a suction roll/suction cylinder and a suction roll/suction cylinder including a roll mantle, end flanges connected to the roll mantle and axle journals for revolvingly supported the roll mantle. The mantle has numerous perforations, holes or equivalent openings passing therethrough. The suction roll/suction cylinder is connected to a suction duct that passes onto the interior of the roll/cylinder and transfers a vacuum force therein. Air is drawn or sucked through the perforations into the interior of the roll mantle so as to press a paper web toward an outer face of the roll mantle. The suction roll/suction cylinder has a system of suction pipes connected with the suction duct and including at least one suction pipe into which air is guided and/or sucked from the vicinity of the inner face of the roll mantle of the roll/cylinder.

摘要翻译： 一种用于从抽吸辊/抽吸缸以及包括辊套的抽吸辊/抽吸缸排出空气的方法，连接到辊套的端部凸缘和用于旋转地支承辊套的轴颈。 地幔具有穿过其中的许多穿孔，孔或等效的孔。 抽吸辊/抽吸筒连接到吸入管道，该抽吸管道传递到辊/缸的内部并在其中传递真空力。 将空气通过穿孔吸入或吸入到辊罩的内部，以将纸幅朝向辊罩的外表面压紧。 抽吸辊/抽吸缸具有与吸入管连接的吸入管的系统，并且包括至少一个吸入管，空气从辊/缸的辊罩的内表面的附近被引导和/或吸入。

公开(公告)号：US4684443A

公开(公告)日：1987-08-04

申请号：US727444

申请日：1985-04-26

申请人： Reima Kerttula ,  Olavi Viitanen

发明人： Reima Kerttula ,  Olavi Viitanen

IPC分类号： D21F7/00 ,  B65H20/14 ,  D21G9/00 ,  D21F1/42 ,  D21F7/04

CPC分类号： D21G9/0072

摘要： An improvement in apparatus for guiding a web leader from a press section to a drying section of a paper machine, the apparatus including flexible guide ropes forming a gap into which the leader is shifted, an initial air blow device for guiding the leader towards the drying wire of the drying section, a first blow member for detaching the leader from the drying wire and a second blow member for applying transversely directed air jets onto the leader to shift it into the gap formed by the guide ropes. According to the improvement, the second air blow device includes a blow member which is mounted for pivotal movement between a non-operating lateral position outside of the edge of the drying wire and an operative position in opposed relationship thereto. One or more nozzle openings are formed in the blow member of the second air blow device for applying the transversely directed air jets onto the web leader when the blow member is in the operating position to shift the web leader into the gap formed by the guide ropes. The improvement of the invention is lightweight, requires little space and can advantageously be provided with automatic controls so that the web leader can be guided from the press section to the drying section in a completely automatic operation.

摘要翻译： 用于将纸幅引导件从压榨部引导到造纸机的干燥部的装置的改进，所述装置包括形成有引导件移动到其中的间隙的柔性引导绳索，用于引导引导件朝向干燥的初始吹气装置 干燥部分的线，用于将引导件从干燥线分离的第一吹塑构件和用于将横向定向的空气射流施加到引导件上以将其移动到由引导绳形成的间隙中的第二吹塑构件。 根据改进，第二吹气装置包括吹风构件，其被安装用于在干燥线的边缘外侧的非操作横向位置和与其干涉的相对关系的操作位置之间枢转运动。 一个或多个喷嘴开口形成在第二吹气装置的吹塑构件中，用于当吹塑构件处于操作位置时将横向定向的空气射流施加到幅材引导件上，以将幅材引导件移动到由引导绳索形成的间隙中 。 本发明的改进是轻质的，需要很小的空间并且可以有利地设置有自动控制，使得卷筒纸引导件能够在完全自动的操作中从压榨部分引导到干燥部分。