• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The subject of this invention forms a transfer suction roll (21) for transferring a material web with a perforated suction roll shell (22) which is rotatably mounted on roller bearings (25), and with a suction box (24) which is arranged in the interior of the transfer suction roll (21) , The suction box (24) defines via seals (32) a suction zone (37) on the perforated suction roll shell (22). According to the invention, a suction hood (26) is arranged on the outer circumference of the transfer suction roll (21), through which air can be sucked out of the suction box (24) through the perforated suction roll jacket (22).
    公开号:AT511975A2
    申请号:T1479/2011
    申请日:2011-10-12
    公开日:2013-04-15
    发明作者:Helmut Dipl Ing Eichler；Harald Ing Weigant；Michael Janosch
    申请人:Andritz Ag Maschf；
    IPC主号:
    专利说明:

    1
    2576-AT
    Transfer suction roll for transferring a material web
    The subject of this invention is a transfer suction roll for transferring a material web from a machine section to a subsequent machine section. The transfer suction roll consists of a perforated suction roll shell, which is rotatably supported by roller bearings, and a suction box, which is arranged in the interior of the transfer suction roll. The suction box is open on one longitudinal side to the suction roll shell and defines via seals a suction zone on the perforated suction roll shell.
    Transfer suction rolls serve to transfer a material web from one machine section to the next. In paper and board machines, transfer suction rolls are used, for example, for transferring the web from the wire section into the press section and from the press section into the dryer section. With several presses, transfer suction rolls are also used inside the press section.
    For transferring the material web is removed by suppression in the transfer suction through a perforated roll shell of a machine section, held on the roll shell and transferred at the end of the negative pressure zone in the next machine section. The evacuated zones with negative pressure are the so-called suction zones. There are transfer suction rolls with one or more suction zones.
    A conventional transfer suction roll 1 is shown in FIGS. 1 to 3. Fig. 1 shows a longitudinal section and Fig. 2 shows a cross section through a conventional transfer suction 1. It consists in
    2576-AT 2 9 9 9 9 9 9 9 9 9 999 9999
    Generally from a rotating, perforated roll shell 2 are bolted to the hollow pin 3 on both sides.
    Both sides of the transfer suction roll 1 are the rolling bearings 5 with the bearing housings 8. The fixed bearing housing 8 are bolted to the machine frame. Inside the transfer suction roll 1 is a fixed suction box 4. The suction box 4 has at least one vacuum connection 6 for the required negative pressure and carries the seals 13 of the suction zone 12 to the non-evacuated zone on the roll circumference. In operation, the suction roller shell 2 is wrapped in the region of the suction zone 12 of the web 17.
    The suction box 4 is pivotally mounted on both sides in the outer bearing caps 7. With a swivel gear consisting of a worm 9 and a worm wheel 10, the entire suction box 4 can be rotated about its axis. Thus, the position of the suction zone 12 can be adapted to the operating conditions.
    The design with suctioned suction box 4 results in large cross-sections due to the amount of air to be removed and therefore correspondingly large and expensive (usually forged) hollow pins 3. The rolling bearings 5 of the conventional transfer suction rolls 1 thus have correspondingly large diameters and are therefore expensive. In addition to the drilled suction roller shell 2, the hollow pin 3 and bearings 5 are the deadline-critical components (long procurement period).
    The sealing 13 of conventional suction zones 12 is usually carried out with plastic sealing strips 14 (FIG. 3). The sealing strips 14 are movably mounted in guide rails 15 and are perforated with inflatable pneumatic hoses 16 made of elastomeric material against the inner wall of the perforated
    2576-AT 3
    »T« · · «·
    Roll shell 2 pressed to ensure the sealing effect. The hoses 16 must be supplied from the outside with compressed air.
    To reduce wear, the sealing strips 14 are lubricated by water spray pipes 11 (Fig.2). The water spray pipes 11 are fixed to the suction box 4 and must be supplied with water from the outside.
    After a certain time, the sealing strips 14 are worn and must be replaced.
    The adjustment of the suction zone 12 with a worm gear 9,10 is a complex construction and therefore associated with corresponding costs (screw 9, worm wheel 10, bearings ...).
    The object of the invention is a simplification of the structure of the transfer suction roll and thus a cost reduction compared to a conventional transfer suction roll. The number of installed parts should be lowered.
    This object is achieved in that a suction hood is arranged on the outer circumference of the transfer suction roll according to the invention, can be sucked through the air through the perforated suction roll shell from the suction box.
    The vacuum required for the suction is thus not generated via a vacuum connection on the suction box, but via the suction hood, which is arranged on the outer circumference of the transfer suction roll. Through the suction hood, the air is sucked through the roll shell and thus creates the negative pressure in the roller.
    Since the suction for the vacuum generation takes place via an outer hood and no vacuum connection on the 4th
    2576-AT «l« ·· * · · 4 * «V * * * * ft * ft *« II »· ·« · * I · I · ft ft ft ft ft · fl * · · * Ft «ft« *******
    Suction box is provided, eliminating the forged hollow pin with the correspondingly large diameters, as are common in conventional transfer suction. Preferably, the suction box is designed as a fixed component. It is advantageous if the suction box at the two ends via a receptacle in the
    Machine frame is pivotally mounted, so that by pivoting the suction box, the position of the suction zone on the Saugwalzenmantel is changeable. This allows a particularly easy adjustability of the position of the suction zone. The design of the suction box is considerably simplified compared to the suction box of a conventional transfer suction and thus more cost-effective.
    It makes sense if the pivoting movement of the suction box via a lever and adjusting screws. A complex swivel gear can thus be omitted.
    It is advantageous if the perforated suction roll shell has end covers in which the rolling bearings for the rotatable mounting of the suction roll shell are integrated.
    This eliminates the conventional bearing housing and the bearings can be made smaller.
    The term critical parts, such as pins and large bearings are thus saved or replaced by smaller and easily available rolling bearings. As term-critical part is only the drilled suction roll shell available. The end covers and bearings can be made identical on both sides, which reduces the number of parts and costs.
    In a favorable embodiment of the invention, the seals of the suction box by flexible sealing strips
    2576-AT 5 * * * »f« · * «* * * · ft · * •« *
    • · t «» ·· # »formed. Preferably, the flexible sealing strips are arranged in the longitudinal direction parallel to the roll axis and installed with length excess in the roll.
    The flexible sealing strip adheres to the inside of the roll mantle by the length excess and does not require a pressing device (for example inflatable air hoses with the corresponding compressed air supply). After running in the sealing strip, the required length of the sealing strip sets itself and 10 then works wear-free. Due to the wear-free running eliminates lubricating spray pipes and their corresponding water supply (cost savings). This seal design is compared to
    Seal design of a conventional transfer suction roll 15 considerably simpler and thus more cost-effective.
    It is favorable if the perforated suction roll jacket has at least one end cover, which is provided with at least one hand hole, through which the roll interior 20 is accessible. Because of the hand holes is one
    Visual inspection of the seals and the interior of the roll by disassembling the handhole cover · easily possible. These hand holes also facilitate the installation of new Dichtieisten. In conventional transfer suction rolls, the 25 screw connection must be released from the hollow pin to the roll shell and the entire suction box must be pulled out of the roll. This is very expensive and only possible with appropriate tools.
    An embodiment of the transfer suction roll according to the invention is described below with reference to drawings. Show: 30 6
    2576-AT «·
    • * »
    4 shows a schematic cross section through the transfer suction roll according to the invention;
    5 shows a schematic longitudinal section through the transfer suction roll according to the invention;
    6 shows a detailed view of the sealing of the suction box with respect to the perforated suction roll jacket;
    7 shows the wheat storage with the pivoting mechanism for the suction box.
    FIG. 4 shows the transfer suction roll 21 according to the invention. It essentially comprises a perforated suction roll jacket 22 (rotor), a stationary suction box 24 in the interior of the transfer suction roll 21 and a suction hood 26 which abuts the suction roll shell 22 on the outside. The suction box 24 defines via the seals 32, a suction zone 37. Through the suction zone 37, a web of material 17 can be securely held on the roll surface. The suction hood 26 is connected via a suction with a vacuum system. Through the suction hood 26 air is sucked out of the Saugwalzeninneren through the perforated suction roller shell 22 through and so creates the negative pressure in the interior of the transfer suction roll 21.
    The suction hood 26 covers a smaller zone on the roll surface than the suction zone 37, so that between the suction hood 26 and the second seal 32 remains a zone at which the perforated roll shell 22 is sucked. This area is the active area for the transfer of a material web 17. By pivoting the suction box 24 and possibly also the suction hood 26, the position of the evacuated zone on the roll surface changes. Preferably, the suction hood 26 touches the perforated suction roll shell 22 tangentially at least on one side, so that 7
    2576-AT, the material web 17 can run along directly on the suction hood 26.
    In Fig. 5, the storage of the perforated suction roll shell 22 by means of the rolling bearing 25 is shown. The rolling bearings 25 are integrated into the end cover 27 of the suction roll shell 22. In addition, the end cover 27 hand holes 31, through which the roll interior is accessible.
    The suction box 24 is pivotally mounted on the Saugkastenachsen 28 in the receptacle 29. The receptacle 29 is connected to the machine chair. The pivoting of the suction box via a mounted on the Saugwalzenachse 28 lever 30th
    The seal 32 of the suction box 24 opposite the perforated suction roll shell 22 is shown in FIG.
    The seal 32 is in each case via a flexible sealing strip 34, 35 which is secured in a sealing strip attachment 33 on the suction box 24, e.g. screwed or riveted, is. The sealing strip 34 is installed with an oversize in the sealing strip attachment 33, thereby the sealing strip is slightly bent and biased against the roll shell 22. During the running-in phase of the transfer suction roll 21, this sealing strip 34 grinds precisely. Finally, one obtains a sealing strip 35 which ensures a precisely fitting seal 32 over the entire length of the roll.
    In Fig. 7, the storage of the Saugkastenachsen 28 is shown in the receptacle 29. By the screws 36 and the lever 30, the Saugwalzenachse 28 can be rotated and thus the entire suction box 24 are pivoted. About the hand holes 31 in the end covers 27, the seals of the transfer suction roll 21 can be easily changed.
    权利要求:
    Claims (8)
    [1]
    8 2576-AT

    ♦ ·

    1. Transfer suction roll (21) for transferring a material web (17) from a machine section to a subsequent machine section with a perforated Saugwalzenmantel (22) which is rotatably mounted on roller bearings (25), and with a suction box (24) inside the transfer suction roll (21) is arranged, wherein the suction box (24) via seals (32) defines a suction zone (37) on the perforated suction roll shell (22), characterized in that a suction hood (26) is arranged on the outer circumference of the transfer suction roll (21) , is sucked through the air through the perforated suction roller shell (22) through the suction box (24).
    [2]
    2. Transfer suction roll (21) according to claim 1, characterized in that the suction box (24) is designed as a fixed component.
    [3]
    3. Transfersaugwalze (21) according to claim 1 or 2, characterized in that the suction box (24) is pivotally mounted at both ends via a receptacle (29) in a machine frame, so that by pivoting the suction box (24) the position of Suction zone (37) on the suction roller shell (22) is variable.
    [4]
    4. Transfer suction roll (21) according to claim 3, characterized in that the pivoting movement of the suction box (24) via a control lever (30) and via screws (36).
    [5]
    5. Transfer suction roll (21) according to one of claims 1 to 4, characterized in that the perforated 9 2576-AT Saugwalzenmantel (22) end cover (27), in which the rolling bearings (25) for the rotatable mounting of the suction roll shell (22) are integrated.
    [6]
    6. Transfer suction roll (21) according to any one of claims 1 to 5, characterized in that the seals (32) of the suction box (24) by flexible sealing strips (34, 35) are formed.
    [7]
    7. Transfer suction roll (21) according to claim 6, characterized in that the flexible sealing strips (34, 35) are made with a length excess and that this length excess when entering the transfer suction roll (21) through the perforated Saugwalzenraantel (22) is abradable, thereby an exact fit of the sealing strips (34, 35) can be realized.
    [8]
    8. Transfer suction roll (21) according to any one of claims 6 or 7, characterized in that the perforated Saugwalzenmantel · (22) at least one end cover · (27), which is provided with at least one hand hole (31) through which accesses the roll interior is.
    类似技术:
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    EP0857821A2|1998-08-12|Suction device
    DE2322155C2|1981-11-12|Rotary pressure filter
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    DE112010004859T5|2013-01-03|SCRAPER
    同族专利:
    公开号 | 公开日
    US20130095989A1|2013-04-18|
    US9121440B2|2015-09-01|
    CN103046421B|2016-04-13|
    CN103046421A|2013-04-17|
    AT511975A3|2015-04-15|
    AT511975B1|2015-06-15|
    EP2581491A1|2013-04-17|
    EP2581491B1|2015-08-19|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE19600880A1|1996-01-12|1997-07-17|Voith Sulzer Papiermasch Gmbh|Suction roll system for conveying the web on a paper or board machine|
    WO2011045237A1|2009-10-14|2011-04-21|Voith Patent Gmbh|End face cover|
    US3828410A|1973-02-22|1974-08-13|Gaston County Dyeing Mach|Honeycomb roll|
    JPS5464111A|1977-10-24|1979-05-23|Japan Steel Works Ltd|Suction roll for paper making|
    DE59806909D1|1997-07-05|2003-02-20|Voith Paper Patent Gmbh|Suction roll for a paper machine|
    DE19728823A1|1997-07-05|1999-01-07|Voith Sulzer Papiermasch Gmbh|Papermaking suction roller|
    DE10214134A1|2002-03-28|2003-10-09|Voith Paper Patent Gmbh|seal means|
    US7186317B2|2003-12-12|2007-03-06|Kimberly-Clark Worldwide, Inc.|Method for producing soft bulky tissue|
    DE102005041044A1|2005-08-30|2007-03-01|Voith Patent Gmbh|Suction or blowing roller for use in e.g. paper machine, has bending support arranged relative to pressure or suction box in roller, such that bending of pressure or suction box is balanced by bending support|AT510620B1|2010-10-27|2012-08-15|Andritz Ag Maschf|SUCTION ROLLER FOR DRAINING A FIBROUS WEB|
    DE102014102610A1|2014-02-27|2015-08-27|Windmöller & Hölscher Kg|Suction channel for a suction device for conveying cut waste strips of a film web|
    US9339714B2|2014-05-20|2016-05-17|Arccos Golf Llc|System and method for monitoring performance characteristics associated with user activities involving swinging instruments|
    US10682562B2|2017-01-17|2020-06-16|Arccos Golf Llc|Autonomous personalized golf recommendation and analysis environment|
    AT521367B1|2019-04-18|2020-01-15|Andritz Ag Maschf|DEVICE AND METHOD FOR CONVERTING A STRIP OF A TRAIN|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA1479/2011A|AT511975B1|2011-10-12|2011-10-12|TRANSFER ROLL TO TRANSMIT A MATERIAL TRACK|ATA1479/2011A| AT511975B1|2011-10-12|2011-10-12|TRANSFER ROLL TO TRANSMIT A MATERIAL TRACK|
    EP12006647.7A| EP2581491B1|2011-10-12|2012-09-21|Transfer suction roll for transferring a material web|
    US13/648,401| US9121440B2|2011-10-12|2012-10-10|Transfer suction roll for transfer of a material web|
    CN201210504513.7A| CN103046421B|2011-10-12|2012-10-11|For the conveying suction roll of transferring material width|
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