公开(公告)号：US4608124A

公开(公告)日：1986-08-26

申请号：US776126

申请日：1985-09-13

申请人： Pekka Mauranen ,  Timo Vedenpaa

发明人： Pekka Mauranen ,  Timo Vedenpaa

IPC分类号： B26D1/02 ,  B26D7/01 ,  B26D7/06 ,  B26D7/20 ,  D21F1/36

CPC分类号： D21G9/0063 ,  B26D1/025 ,  B26D7/015 ,  B26D7/0675 ,  B26D7/20 ,  B26D2007/0031

摘要： A method and apparatus for cutting a lead-in strip from a paper web in a multiple cylinder dryer section of a paper machine and for increasing the width of the lead-in strip by a so-called oblique draw. A cutting device for cutting the web is situated alongside a region of an unsupported draw of the web in the dryer section. According to the method, and apparatus a guide surface which extends in substantially parallel relationship to the plane of the web is associated with the web cutting device. A gas flow is directed over the guide surface to stabilize the run of the web during the cutting operation performed on the web by the cutting device. The gas flow is directed onto the guide surface from a nozzle opening situated adjacent to the leading edge region of the guide surface into a space between the guide surface and the web to produce an underpressure in the space which stabilizes the web run. Alternatively, two gas flows are directed from respective leading and trailing edge regions of the guide surface toward each other onto the guide surface into the space between the web and the guide surface to stabilize the web by means of an overpressure created in the space.

摘要翻译： 一种用于在造纸机的多缸干燥器部分中从纸幅切割引入条并且通过所谓的倾斜拉伸增加引入条的宽度的方法和装置。 用于切割幅材的切割装置位于干燥器部分中的幅材的无支撑牵引区域的旁边。 根据该方法，并且与所述幅材切割装置相关联的引导表面与所述幅材的平面基本上平行的关系延伸。 气体流动被引导到引导表面上，以在通过切割装置对卷筒纸进行的切割操作期间稳定卷筒纸的运行。 气流从位于引导表面的前缘区域附近的喷嘴开口引导到引导表面上，进入引导表面和腹板之间的空间中，以在空间中产生负压，从而稳定腹板运动。 或者，两个气流从引导表面的相应的前缘区域和后缘区域彼此相向地引导到引导表面上，进入幅材和引导表面之间的空间中，以通过在空间中产生的过压来稳定幅材。

公开(公告)号：US4566944A

公开(公告)日：1986-01-28

申请号：US488664

申请日：1983-04-26

申请人： Pekka Mauranen ,  Timo Vedenpaa

发明人： Pekka Mauranen ,  Timo Vedenpaa

IPC分类号： B26D1/02 ,  B26D7/01 ,  B26D7/06 ,  B26D7/20 ,  D21F1/36

CPC分类号： D21G9/0063 ,  B26D1/025 ,  B26D7/015 ,  B26D7/0675 ,  B26D7/20 ,  B26D2007/0031

摘要： A method and apparatus for cutting a lead-in strip from a paper web in a multiple cylinder dryer section of a paper machine and for increasing the width of the lead-in strip by a so-called oblique draw. A cutting device for cutting the web is situated alongside a region of an unsupported draw of the web in the dryer section. According to the method and apparatus, a guide surface which extends in substantially parallel relationship to the plane of the web is associated with the web cutting device. A gas flow is directed over the guide surface to stabilize the run of the web during the cutting operation performed on the web by the cutting device. The gas flow is directed onto the guide surface from a nozzle opening situated adjacent to the leading edge region of the guide surface into a space between the guide surface and the web to produce an underpressure in the space which stabilizes the web run. Alternatively, two gas flows are directed from respective leading and trailing edge regions of the guide surface toward each other onto the guide surface into the space between the web and the guide surface to stabilize the web by means of an overpressure created in the space.

摘要翻译： 一种用于在造纸机的多缸干燥器部分中从纸幅切割引入条并且通过所谓的倾斜拉伸增加引入条的宽度的方法和装置。 用于切割幅材的切割装置位于干燥器部分中的幅材的无支撑牵引区域的旁边。 根据该方法和装置，与卷筒纸切割装置相关联的引导表面与纸幅的平面基本平行地延伸。 气体流动被引导到引导表面上，以在通过切割装置对卷筒纸进行的切割操作期间稳定卷筒纸的运行。 气流从位于引导表面的前缘区域附近的喷嘴开口引导到引导表面上，进入引导表面和腹板之间的空间中，以在空间中产生负压，从而稳定腹板运动。 或者，两个气流从引导表面的相应的前缘区域和后缘区域彼此相向地引导到引导表面上，进入幅材和引导表面之间的空间中，以通过在空间中产生的过压来稳定幅材。

公开(公告)号：US4407227A

公开(公告)日：1983-10-04

申请号：US323427

申请日：1981-11-20

申请人： Pekka Mauranen

发明人： Pekka Mauranen

IPC分类号： B05C1/04 ,  B05C1/08 ,  B05C3/12 ,  B05C3/132 ,  B05C3/18 ,  B05C11/04 ,  D21D20060101

CPC分类号： D21H23/40 ,  D21H23/78 ,  D21H5/0015 ,  D21H5/0062

摘要： Coating apparatus includes three coating rollers, in a closed group, forming two coating nips with each other. First coating supply apparatus is provided on the first coating roller, followed by knife or doctor coating apparatus. Second coating supply apparatus is provided on the second roller after the first nip, followed by knife or doctor coating apparatus. After the second roller, the paper web runs through a second nip formed by the second roller and a third coating roller. The coated web is released from the third coating roller and transferred to drying apparatus, for example. If necessary, heating apparatus is provided at the first and second coating rollers for drying the web and the coating agents by heat radiation without contact with the web.

摘要翻译： 涂布装置包括三个涂布辊，在封闭的组中，彼此形成两个涂层夹。 第一涂布供应装置设置在第一涂布辊上，随后是刮刀或刮涂装置。 第二涂料供给装置在第一辊隙之后设置在第二辊上，随后是刮刀或刮涂装置。 在第二辊之后，纸幅穿过由第二辊和第三涂布辊形成的第二辊隙。 涂布的纸幅例如从第三涂布辊释放并转印到干燥装置中。 如果需要，在第一和第二涂布辊处设置加热装置，用于通过热辐射干燥幅材和涂层剂，而不与纸幅接触。