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：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：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：US5044094A

公开(公告)日：1991-09-03

申请号：US570129

申请日：1990-08-20

申请人： Heikki Ilvespaa ,  Reima Kerttula ,  Allan Liedes

发明人： Heikki Ilvespaa ,  Reima Kerttula ,  Allan Liedes

IPC分类号： D21F5/04

CPC分类号： D21F5/042

摘要： The invention relates to an apparatus for use in the drying section of a paper machine, which apparatus comprises a drying cylinder group formed by drying cylinders and a roll group formed by rolls, preferably suction rolls located at a different height relative to the drying cylinders. The geometric rotational axis of the roll located in an area between two adjacent drying cylinders in a different height position is spaced away from the center plane between the center axes of the drying cylinders. The surface of the roll, preferably a suction roll, is adapted to be located as close to the surface of the drying cylinder on the web outgoing side of the roll as possible, whereby the free transfer distance of the outgoing side is minimized.

公开(公告)号：US5555638A

公开(公告)日：1996-09-17

申请号：US410076

申请日：1995-03-24

申请人： Risto Lehosvuo ,  Allan Liedes ,  Pekka Matilainen

发明人： Risto Lehosvuo ,  Allan Liedes ,  Pekka Matilainen

IPC分类号： D21F5/04 ,  F26B3/00 ,  F26B13/08

CPC分类号： D21F5/04

摘要： A method for contact drying a paper web, wherein the paper web is dried by heated smooth-faced drying cylinders by passing the web through successively arranged so-called normal groups with single-wire draw in which drying cylinders are situated in a first row and reversing suction cylinders or equivalent suction rolls are situated in a second row. Thereafter, the web is dried by passing it through a hybrid dryer group which hybrid dryer group consists of a normal portion with single-wire draw and a portion with twin-wire draw, one of the wires in the twin-wire portion constituting the wire of the portion with single-wire draw whereas the other wire in the twin-wire portion is a separate wire. The invention also relates to a dryer section of a paper machine wherein the initial part includes successively arranged so-called normal groups with single-wire draw after which one hybrid dryer group is provided, in which there is a portion with single-wire draw and a portion with twin-wire draw. In the hybrid group, one row includes drying cylinders over which the wire of the single-wire draw runs, and the other row includes reversing cylinders, suction rolls or equivalent, and drying cylinders. A separate wire runs over the drying cylinders in this row.

摘要翻译： 一种用于使纸幅接触干燥的方法，其中通过使卷筒纸通过连续布置的所谓正常组，通过加热的平滑干燥筒干燥纸幅，其中干燥筒位于第一排中， 反向抽吸缸或相当的吸入辊位于第二排。 此后，通过将纸幅通过混合干燥器组干燥，该混合干燥器组由具有单线牵引的法线部分和具有双线牵引的部分组成，双线部分中的一条线构成线 的单线牵引部分，而双线部分中的另一根线是单独的线。 本发明还涉及一种造纸机的干燥部分，其中初始部分包括连续布置的所谓的具有单线牵引的正常组，之后提供一个混合干燥器组，其中存在具有单丝牵引的部分， 一个双线画的部分。 在混合动力组中，一排包括干燥缸，单线牵引线穿过该缸，另一排包括倒车缸，抽吸辊或等效物，以及干燥缸。 一排单独的电线穿过这排的干燥筒。

公开(公告)号：US6065222A

公开(公告)日：2000-05-23

申请号：US175189

申请日：1998-10-20

申请人： Antti Kuhasalo ,  Juha Kaihovirta ,  Allan Liedes

发明人： Antti Kuhasalo ,  Juha Kaihovirta ,  Allan Liedes

IPC分类号： D21F5/04 ,  D21G1/00 ,  D21F5/00 ,  F26B11/06

CPC分类号： D21G1/00 ,  D21F5/04 ,  D21G1/006

摘要： A dryer section of a paper machine which is provided with at least one intermediate calendering nip and includes several successively arranged wire groups. The dryer section primarily or exclusively has groups with single-wire draw in which heated drying cylinders are arranged in an upper row and reversing suction cylinders or reversing suction rolls are arranged in a lower row below the upper row. The groups with single-wire draw also have a drying wire which runs along a meandering path over the drying cylinders and reversing suction cylinders or rolls so that the reversing suction cylinders remain inside the loop of the drying wire. A calender roll is arranged in opposed relationship to a drying cylinder in one or more of the single-wire draw groups in a sector which the first face of the web is exposed to thereby define a calendering nip therewith.

摘要翻译： 一种造纸机的干燥部，其设置有至少一个中间压延辊隙并且包括几个连续布置的线组。 干燥部主要或排他地具有单线牵引的组，其中加热的干燥筒布置在上排中，并且反向吸气筒或反向吸辊设置在上排下方的下排中。 具有单线牵引的组还具有干燥线，该干线沿着干燥筒上的弯曲路径延伸，并且反向的吸入筒或辊，使得反向吸入缸保持在干燥线的环内。 砑光辊布置成与一个或多个单丝牵引组中的一个或多个单丝牵引组相对的关系，该部分中的幅材的第一面被暴露，由此限定了压延辊隙。

公开(公告)号：US5553393A

公开(公告)日：1996-09-10

申请号：US410090

申请日：1995-03-24

申请人： Ville Korhonen ,  Allan Liedes ,  Jouko Yli-Kauppila

发明人： Ville Korhonen ,  Allan Liedes ,  Jouko Yli-Kauppila

IPC分类号： D21F5/04 ,  F26B11/02

CPC分类号： D21F5/042

摘要： A dryer section of a paper machine including cylinder groups provided with single-wire draw having smooth-faced heated drying cylinders against which a web to be dried enters into direct contact, and reversing rolls. The groups with single-wire draw have a drying wire which is guided in a loop by guide rolls as well as by the drying cylinders and the reversing rolls so that the drying cylinders are placed outside the wire loop, and the reversing rolls are situated in gaps between the drying cylinders inside the drying-wire loop. In order to optimize the drying capacity calculated per unit of length of the dryer section in the machine direction, as the drying makes progress, a different ratio of the drying cylinder diameter to the reversing roll diameter is employed, so that, in the first group or groups in the initial end of the dryer section, the ratio is higher than the corresponding ratio in the groups in the middle area of the dryer section. In the group or groups in the final end of the dryer section, a diameter ratio is used that is higher than the ratio in the middle area of the dryer section.

摘要翻译： 一种造纸机的干燥部，其包括具有单丝拉丝的圆筒组，其具有平滑加热的干燥滚筒，待干燥的卷材直接接触到该滚筒，以及反向辊。 具有单线牵引的组具有干燥线，其通过导向辊以及由干燥滚筒和反向辊在环路中引导，使得干燥滚筒放置在线环外部，并且反转辊位于 干燥线环内干燥筒之间的间隙。 为了优化干燥部在机器方向上的每单位长度计算的干燥能力，随着干燥的进行，采用干燥筒直径与反向辊直径的不同比例，使得在第一组 或组在干燥部的初始端，该比率高于干燥部的中间区域中的组中的相应比例。 在干燥部的最终端的组或组中，使用比干燥部的中间部的比例高的直径比。

公开(公告)号：US5913587A

公开(公告)日：1999-06-22

申请号：US918787

申请日：1997-08-25

申请人： Antti Kuhasalo ,  Juha Kaihovirta ,  Allan Liedes

发明人： Antti Kuhasalo ,  Juha Kaihovirta ,  Allan Liedes

IPC分类号： D21F5/04 ,  D21G1/00 ,  D21F3/02

CPC分类号： D21F5/04 ,  D21G1/00 ,  D21G1/006

摘要： A dryer section of a paper machine which is provided with at least one intermediate calendering nip and includes several successively arranged wire groups. The dryer section primarily or exclusively has groups with single-wire draw in which heated drying cylinders are arranged in an upper row and reversing suction cylinders or reversing suction rolls are arranged in a lower row below the upper row. The groups with single-wire draw also have a drying wire which runs along a meandering path over the drying cylinders and reversing suction cylinders or rolls so that the reversing suction cylinders remain inside the loop of the drying wire. Two calender rolls are arranged to form the calendering nip through which a paper web to be dried is passed, and thus calendered inside the dryer section, immediately preceding or following or within one or more of the dryer groups of the dryer section.

摘要翻译： 一种造纸机的干燥部，其设置有至少一个中间压延辊隙并且包括几个连续布置的线组。 干燥部主要或排他地具有单线牵引的组，其中加热的干燥筒布置在上排中，并且反向吸气筒或反向吸辊设置在上排下方的下排中。 具有单线牵引的组还具有干燥线，该干线沿着干燥筒上的弯曲路径延伸，并且反向的吸入筒或辊，使得反向吸入缸保持在干燥线的环内。 布置两个压延辊以形成压延辊隙，待干燥的纸幅通过该压辊辊筒在烘干机部分之前或之后或在干燥器部分的一个或多个烘干机组之前在干燥部分内压延。

公开(公告)号：US5894679A

公开(公告)日：1999-04-20

申请号：US661666

申请日：1996-06-11

申请人： Antti Kuhasalo ,  Juha Kaihovirta ,  Allan Liedes

发明人： Antti Kuhasalo ,  Juha Kaihovirta ,  Allan Liedes

IPC分类号： D21F5/04 ,  D21G1/00 ,  D21F5/00

CPC分类号： D21G1/006 ,  D21F5/04 ,  D21G1/00

摘要： A dryer section of a paper machine which is provided with at least one intermediate calendering nip and includes several successively arranged wire groups. The dryer section primarily or exclusively has groups with single-wire draw in which heated drying cylinders are arranged in an upper row and reversing suction cylinders or reversing suction rolls are arranged in a lower row below the upper row. The groups with single-wire draw also have a drying wire which runs along a meandering path over the drying cylinders and reversing suction cylinders or rolls so that the reversing suction cylinders remain inside the loop of the drying wire. In one representative embodiment, at a drying cylinder situated inside the group with single-wire draw or in connection with the last drying cylinder in the group, a free space is arranged in which a calender roll is arranged to form the calendering nip together with the drying cylinder in the group with single-wire draw through which a paper web to be dried is passed and, thus, calendered inside the dryer section.

摘要翻译： 一种造纸机的干燥部，其设置有至少一个中间压延辊隙并且包括几个连续布置的线组。 干燥部主要或排他地具有单线牵引的组，其中加热的干燥筒布置在上排中，并且反向吸气筒或反向吸辊设置在上排下方的下排中。 具有单线牵引的组还具有干燥线，该干线沿着干燥筒上的弯曲路径延伸，并且反向的吸入筒或辊，使得反向吸入缸保持在干燥线的环内。 在一个代表性的实施例中，在位于组内部的具有单线牵引或与组中的最后一个干燥筒相连的干燥筒处，布置有自由空间，其中布置有压延辊以形成压延辊隙 采用单线牵引的组中的干燥筒，待干燥的纸幅穿过该筒，从而在干燥部内压延。

公开(公告)号：US5639350A

公开(公告)日：1997-06-17

申请号：US876175

申请日：1992-04-30

申请人： Jouko Aula ,  Allan Liedes ,  Auvo Saari

发明人： Jouko Aula ,  Allan Liedes ,  Auvo Saari

IPC分类号： D21F5/04 ,  D21G9/00

CPC分类号： D21F5/04 ,  D21G9/0063

摘要： A method and apparatus for cutting a paper web (W) in a group of drying cylinders provided with single-wire draw (13) in a paper machine or a finishing machine. The drying wire (13) is separated from the paper web (W) by one or more guide rolls (14a, 14b) thereby creating a open draw (W.sub.0) for the web (W). The cutting of the paper web (W) is carried out at the open draw (W.sub.0) of the web (W). After the open draw (W.sub.0), the drying wire (13) and the web (W) are rejoined on the surface of the following leading or drying cylinder (11). Preferably, two guide rolls (14a, 14b) are utilized whereby the first roll is disposed so that the drying wire (13) supports the web (W) up to the location of the guide roll (14a), which is followed by an open draw (W.sub.0) of the web. The drying wire (13) is returned onto the following leading or drying cylinder (11) with the second guide roll (14b).

摘要翻译： 一种用于在造纸机或整理机中切割设置有单线牵引（13）的一组干燥滚筒中的纸幅（W）的方法和装置。 干燥线（13）通过一个或多个导辊（14a，14b）从纸幅（W）分离，从而形成幅材（W）的开放拉伸（W0）。 纸幅（W）的切割在纸幅（W）的开卷（W0）处进行。 在开卷（W0）之后，干燥线（13）和网（W）重新连接在以下前导或干燥筒（11）的表面上。 优选地，使用两个引导辊（14a，14b），由此第一辊被布置成使得干燥线（13）支撑幅材（W）直到导辊（14a）的位置，其后是开口 绘制（W0）的网页。 干燥线（13）用第二导辊（14b）返回到下一个前导或干燥筒（11）上。