EP1348805B1 - Dispositif d' étanchéité - Google Patents

Dispositif d' étanchéité Download PDF

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Publication number
EP1348805B1
EP1348805B1 EP03001596A EP03001596A EP1348805B1 EP 1348805 B1 EP1348805 B1 EP 1348805B1 EP 03001596 A EP03001596 A EP 03001596A EP 03001596 A EP03001596 A EP 03001596A EP 1348805 B1 EP1348805 B1 EP 1348805B1
Authority
EP
European Patent Office
Prior art keywords
sealing
sealing device
moving surface
strip
sealing element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
EP03001596A
Other languages
German (de)
English (en)
Other versions
EP1348805A1 (fr
Inventor
Ulrich Begemann
Joachim Dr. Grabscheid
Jörg Dr. Rheims
Ansgar MÜLLER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Voith Patent GmbH
Original Assignee
Voith Patent GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Voith Patent GmbH filed Critical Voith Patent GmbH
Publication of EP1348805A1 publication Critical patent/EP1348805A1/fr
Application granted granted Critical
Publication of EP1348805B1 publication Critical patent/EP1348805B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/10—Suction rolls, e.g. couch rolls

Definitions

  • the invention relates to a sealing device for the lateral sealing of at least one adjacent to a moving surface pressure or negative pressure zone in a paper machine with at least one of the moving surface opposite sealing element, pivotally mounted on a hinge and for application to the moving surface by appropriate pivoting with a contact pressure can be acted upon.
  • Such a sealing device is for example in the US-A-5 580 424 , of the DE 197 51 283 and the DE 198 42 837 described.
  • Such sealing devices are used, for example, to seal off the interior of a suction box, whose side walls are provided with the sealing device, under negative pressure from the environment.
  • a sealing element which cooperates sealingly in a sealing area with a Saugwalzenmantel and serving in a damping of the bore ventilation ventilation area with the roll shell forms a ventilation gap and which is pivotally mounted via a connected at the outlet end rigidly connected to a suction box. Due to the deflection of the suction box and roller tube but here can the Change the distance between the rear end of the sealing element in the running direction of the roller and the roll shell over the roll length by up to 15 mm. The damping of the bore ventilation from the inside of the roll is therefore very different. For a specific installation position and a certain operating vacuum, these deformations can be compensated for at least approximately by a corresponding machining of the mounting surface of the hinge strip.
  • the roller is for different Installation positions provided with different vacuums, narrow limits are set such compensation.
  • This method also has the effect that when applying the sealing strips without vacuum and the associated Saugkastenverformung a respective sealing strip by torsion must compensate for the strong distance differences between the joint and roller tube, but may not be able to do so. Due to wear of the sealing strip, the ventilation wedge changes between the sealing strip and the roller tube. With increasing wear, the noise increases, until finally there is no difference to conventional sealing strips.
  • the aim of the invention is therefore to provide an improved sealing device of the aforementioned type, with which the aforementioned disadvantages are avoided.
  • a sealing device for the lateral sealing of at least one adjacent to a moving surface overpressure or negative pressure zone in a paper machine with at least one of the moving surface opposite sealing element which is pivotally mounted via a hinge and for application to the moving surface by corresponding pivoting can be acted upon by a contact force, wherein the joint and with this the pivot axis in particular in the direction of the contact pressure on the moving surface to and from this away adjustable and fixable in its respective position.
  • the joint is preferably formed on an adjustable and fixable in their respective position bar, which may extend in particular transversely to the direction of movement of the moving surface.
  • the bar can be fixed, for example, on a support or the like.
  • the strip can be fixed in its respective position by means of a clamping device.
  • the clamping device in question may comprise, for example, at least one piston and / or at least one pressure hose.
  • the strip is provided with spacers and is adjustable in an end position in which these spacers abut the moving surface and thus define a predetermined position of the joint relative to the moving surface.
  • spacers may for example be at least partially formed by nubs, rollers and / or the like.
  • the pivot axis of the sealing element defined by the joint preferably extends transversely to the running direction of the moving surface.
  • the strip may in particular be provided with an engagement section which engages in a groove provided in the sealing element.
  • the relevant groove is preferably at one in the running direction the moving surface considered rear end face of the sealing element provided.
  • the sealing element can generally be arranged in the running direction of the moving surface between the strip and a particular carrier or the like associated stop.
  • the front end face of the sealing element facing the stop is preferably convexly curved in order, if appropriate, to allow unhindered pivoting of the sealing element.
  • the sealing element comprises a ventilation lug which extends in the running direction of the moving surface from sealingly cooperating with this surface end of the sealing element, in a subsequent to the sealing area ventilation area for ventilation in particular of the moving surface provided openings.
  • the ventilation approach with the moving surface preferably forms a widening in the direction of travel gap.
  • the sealing element is preferably acted upon for application to the moving surface in the region of its sealingly cooperating with this surface end.
  • the sealing element in the region of its sealing end cooperating with the moving surface, may have a projection which extends generally away from the moving surface and may be acted upon correspondingly via this approach.
  • the sealing element for applying to the moving surface for example, via at least one pressure hose or the like acted upon accordingly.
  • Also for adjusting the bar e.g. be provided at least one pressure hose.
  • the strip is made of several parts, in particular two parts, and the strip parts relative to each other by a defined amount adjustable, in particular displaceable, are.
  • the multi-part bar can initially be adjusted in the extended state so far that the ventilation approach of the sealing element bears against the moving surface.
  • the sealing element can also be acted upon via the strip in particular so that the ventilation approach is pressed against the moving surface.
  • the relevant surface of the ventilation approach is hereby cleaned accordingly and "reground”.
  • the bar comprises two adjustable by a predetermined stroke relative to each other, in particular displaceable, strip parts, wherein the joint or the engaging portion having strip part after successful fixation of the other strip part according to the predetermined stroke is retractable again lift the ventilation approach again from the moving surface.
  • the limited stroke preferably corresponds to the distance of the rear edge of the sealing element from the moving surface in the direction of travel of the moving surface.
  • the strip part or the engagement portion having strip part may be particularly resiliently loaded in its retracted position.
  • the strip part or the engagement portion having strip portion is acted upon via at least one pressure hose in its extended position.
  • the other strip part is preferably fixable via a clamping device in its respective position.
  • the clamping device may comprise, for example, a piston and / or at least one pressure hose.
  • the sealing element can be fixed in its respective pivot position via a clamping device.
  • the clamping device may, for example, again comprise at least one piston and / or at least one pressure hose.
  • the clamping device is designed so that the sealing element dissolves when the piston or pressure hose from the moving surface, whereby the wear is reduced accordingly.
  • a stop element which can be fixed at a respective distance from the moving surface and which limits the application movement of the sealing element can be provided.
  • the stop element is preferably fixable via a clamping device in its respective position.
  • the clamping device may again comprise at least one piston and / or at least one pressure hose.
  • the stop element for example, at least one pressure hose with entrainment of the sealing element at least again as far as retractable, that the sealing element separates from the moving surface.
  • the clamping device is designed so that the stop element is at least again pulled back so far when the piston or pressure hose under the entrainment of the sealing element that the sealing element detaches from the moving surface.
  • the sealing device can be used in particular for the lateral sealing of at least one pressure zone adjacent to the inner or outer wall of a rotating jacket of a suction or blower roll or to a moving belt.
  • the sealing element can in particular also be designed as a sealing strip extending at least substantially over the entire length of the roll.
  • FIG. 1 shows, in a schematic, partially sectioned illustration, a first exemplary embodiment of a sealing device 10 for the lateral sealing of at least one overpressure or underpressure zone adjacent to a moving surface 12 in a paper machine.
  • the sealing device 10 is disposed within a suction roll 14, for example, to seal a pressure zone P 1 from the environment in which a higher pressure P 2 prevails.
  • a higher pressure P 2 prevails.
  • the moving surface 12 provided with holes 16 jacket 18 of the suction roller 14, the moving surface 12.
  • About the suction roller 14 may be performed in particular a paper web to be dewatered.
  • the ambient pressure P 2 can also be smaller than the pressure P 1 generated, for example, in the interior of a suction box, in particular when the sealing device according to the invention is used in conjunction with a blow box associated with a blowing roller.
  • the sealing device comprises at least one of the moving surface 12 opposite sealing element 20 which is pivotally mounted via a hinge 22 and for applying to the moving surface 12 by appropriate pivoting with a contact pressure F P acted upon, in the present case, for example, by a preferably transversely to Running direction L of the moving surface 12 extending pressure hose 24 is generated.
  • the joint 22 is in particular in the direction of the contact pressure F P generally on the moving surface 12 to and away from this adjustable and fixable in its respective position.
  • the articulation 22, and thus the pivot axis 26 formed by it can be positioned in a predeterminable manner relative to the moving surface 12, ie in this case the inner surface of the suction roller 14.
  • the hinge 22 is formed on a corresponding positionable element 28, which may be, for example, a bar or the like.
  • the displacement direction V R of this adjustable element 28 is accordingly, for example, parallel to the direction of the contact pressure F P.
  • the pivot axis 26 of the sealing element 20 defined by the joint 22 extends transversely to the running direction L of the moving surface 12.
  • the element or strip 28 for forming the joint can be provided with an engagement section 30, which engages in a groove 32 provided in the sealing element 20.
  • the groove 32 is provided on a viewed in the direction L of the moving surface 12 rear end face 34 of the sealing element 20.
  • the engagement portion 30 and the groove 32 extend transversely to the direction of travel of the moving surface 12 to form the transverse pivot axis 26.
  • the sealing element 20 can generally be arranged in the running direction L of the moving surface 12 between the adjustable element 28 formed for example by a strip and a stop 38 associated in particular with a carrier 36 or the like.
  • the stop 38 facing the front end face 40 of the sealing element 20 is preferably curved convex, to allow an unhindered pivoting of the sealing element 20, if necessary.
  • the sealing element 20 is provided with a ventilation lug 42 extending in the direction L of the moving surface 12 from sealingly cooperating with this surface 12 end 44 of the sealing member 20 away, in a subsequent to the sealing region 46 ventilation area 48 for ventilation of in the moving surface 12 provided openings or holes 16 to provide.
  • the ventilation projection 42 forms, with the moving surface 12, a gap 50 widening in its running direction L.
  • the sealing elements 20 for applying to the moving surface 12 in the region of an end 44 cooperating sealingly with this surface 12, for example, by at least one extending in the transverse direction pressure hose 24 can be acted upon accordingly.
  • the sealing element 20 is provided in the region of its sealing end 44 with a generally extending away from the moving surface 44 approach 52 and 52 via this approach, for example, by the pressure hose 24 acted upon.
  • the sealing element 20 may in particular be designed as a sealing strip extending transversely to the running direction L of the moving surface 12 and in particular as a sealing strip extending at least substantially over the entire length of the suction roll 14.
  • the pressure hose 24 may be arranged, for example, between the carrier 36 and the projection 52 of the sealing element 20.
  • FIG. 2 shows, in a schematic, partially sectioned illustration, a further embodiment of the sealing device 10, in which the joint 22 is provided on an adjustable bar 28 which can be fixed in its respective position.
  • the strip 28 extends again transversely to the direction L of the moving surface 12th
  • the strip 28 is also in the present case, for example, again in the direction of the contact force F P movable.
  • the strip 28 can be fixed to a carrier 36. It may be, for example, the same carrier 36, on which the stop 38 is provided.
  • the strip can be fixed in its respective position via a clamping device 54.
  • the clamping device 54 may comprise at least one piston 56 and / or at least one pressure hose 58.
  • an e.g. strip-like piston 56 is provided, which is pressed by a, for example, in the transverse direction extending pressure hose 58 against the bar 28 to clamp this between the piston 56 and a counter-surface 60, which may be provided again for example on the carrier 36.
  • the strip 28 is correspondingly adjustable in the pressing direction, for example by at least one pressure hose 62.
  • the clamping device 54 can be activated to fix the bar 28 in the relevant position by clamping.
  • this sealing device 10 may at least substantially in particular again be designed as that of Figure 1. Parts corresponding to each other are assigned the same reference numerals.
  • FIG. 3 shows, in a schematic, partially sectioned illustration, a further embodiment of the sealing device 10 with a strip 28 provided for forming the joint 22.
  • the strip 28 is merely provided, for example, with spacers 64 and, for example, adjustable again by at least one pressure hose 62 into an end position in which these spacers 64 abut the moving surface 12 and thus a predefinable position of the joint 22 relative to the moving surface 12 define.
  • a plurality of spacers distributed transversely to the running direction L over the moving surface 12 are preferably provided.
  • a plurality of spacers 64 distributed in the width direction can thus be provided in the form of nubs. These can be formed for example by nubs, rollers and / or the like. Examples of possible cross-sectional formers of such spacers 64 are shown in the lower part of FIG.
  • these spacers 64 may have a rectangular cross section a), a triangular cross section b), an oval cross section c), etc.
  • the spacers 64 can be lifted by a predetermined return stroke again from the moving surface 12.
  • the clamping device 54 may be designed so that the bar 28 moves at a loading of the piston 56 and the pressure hose 58 a piece down and accordingly the spacers 64 are lifted from the moving surface 12.
  • the piston 56 and the pressure hose 58 are in this case, for example, with respect to the horizontal arranged according to inclined guide 66.
  • the piston 56 may again be formed by an intermediate strip extending transversely to the running direction L of the moving surface 12.
  • a further intermediate strip 68 may be provided, which may also be arranged again in an inclined guide 69.
  • the two guides 66, 69 may for example be provided again in the carrier 36.
  • pressure hoses 70 such as, for example, O-ring bands made of silicone or the like may also be arranged, which in the present case, however, have a significantly smaller cross section than the pressure tube 58.
  • This clamping device 54 which effects a corresponding return stroke, can in general also be designed in particular as described in US Pat US-A-5 580 424 is described.
  • sealing device 10 may in particular be embodied at least substantially again as in accordance with FIG. 1.
  • Mutually corresponding parts are assigned the same reference numerals.
  • FIG. 4 shows, in a schematic, partially sectioned illustration, a further embodiment of the sealing device 10 with a strip 28 provided for forming the joint 22.
  • this strip 28 is designed in two parts, wherein the two strip parts 28 ', 28 "in particular in the direction of the contact pressure F P relative to each other by a defined amount a adjustable, in particular slidably, which preferably corresponds to the distance a D provided during normal operation of the rear edge 72 in the running direction L of the moving surface 12.
  • the two-part bar 28 is initially in the extended state, e.g. via at least one pressure hose 62 as far as the moving surface 12 adjustable that the ventilation lug 42 of the sealing element 20 and the rear edge 72 rests against the moving surface 12 (see dashed line illustration of the sealing element).
  • the sealing element 20 via the bar 28 in particular so acted upon that the ventilation lug 42 is pressed against the moving surface 12.
  • the two strip parts 28 ', 28 are so relative to each other by the predetermined stroke a so adjustable that the rear edge 72 of the sealing member 20 can be applied to the moving surface 12 and then, for example, after the fixing of the outer rail part 28" by the predetermined stroke a is again lifted from the moving surface 12.
  • the strip part 22 'having the joint 22 or the engagement section 30 is arranged with its opposite end inside the outer strip part 28 "and guided therein.
  • the strip part 28 'comprising the joint 22 or the engagement section 30 is e.g. via one or more compression springs 74 resiliently loaded in its retracted position shown in Figure 4 by solid lines.
  • the outer strip part 28 ' is, for example, again fixable in its respective position via such a clamping device 54 as has been described in connection with the embodiment according to FIG.
  • the clamping device 54 may thus comprise, for example, again at least one piston 56 and / or at least one pressure hose 58, in order to clamp the outer strip part 28 ", for example between the particular strip-like piston 56 and a counter-surface 60.
  • the two-part bar 28 is thus pushed apart in the present case, for example via the pressure hose 76 and, for example via the pressure hose 62 in the direction of the moving surface 12 moves until the sealing element 20 rests with the rear edge 72 on the moving surface 12.
  • the outer strip part 28 "is fixed by means of the clamping device 54, and the inner strip part 28 'is displaced counter to the pressing direction F P in accordance with the predefined defined stroke a
  • the limited stroke a corresponds to the distance a D of the rear edge 72 resulting during operation from the moving surface 12, which is in particular constant over the width.
  • this sealing device may in particular at least substantially again have the same structure as that according to FIG. Corresponding parts are assigned the same reference numerals.
  • FIG. 5 shows, in a schematic, partially sectioned illustration, a further embodiment of the sealing device 10, in which the sealing element 20 can be fixed in its respective pivoting position via a clamping device 78.
  • the clamping device 78 may in particular comprise at least one piston 80 and / or at least one pressure hose 82 again.
  • the piston 80 may in particular be designed like a strip again and extend transversely to the direction L of the moving surface 20. Also, the pressure hose 82 extends in particular again in the transverse direction.
  • the clamping device in question could in particular also be designed so that the sealing element 20 is released from the moving surface 12 when the piston or pressure hose is acted on.
  • this embodiment may in particular at least substantially have the same structure as the embodiments described above again. Corresponding parts are assigned the same reference numerals.
  • FIG. 6 shows a schematic, partially sectioned illustration of a further embodiment of the sealing device 10.
  • a stop element 84 which can be fixed at a respective distance from the moving surface 12 and which limits the application movement of the sealing element 20 is provided.
  • this stop element 84 comprises an engagement section 86 which engages with play in a groove 88 provided in the front end face 40 of the sealing element 20.
  • the stop element 84 can be fixed in the present case via a clamping device 90 in its respective position.
  • the clamping device 90 may, for example, again comprise at least one piston 92 and / or at least one pressure hose 94.
  • the piston 92 may again as a strip-like, be executed transversely to the direction L of the moving surface 12 extending element.
  • the pressure hose 94 preferably extends again in the transverse direction.
  • the stop element 84 can be at least again pulled back to the extent that the sealing element 20 is released again from the moving surface 12 while taking the previously applied via the pressure hose 24 to the moving surface 12 sealing member 20 with entrainment of this sealing element 20.
  • this embodiment can in particular at least substantially have such a structure as the embodiments described with reference to FIGS 1 to 5. Corresponding parts are assigned the same reference numerals.
  • the embodiment according to FIG. 7 differs from that according to FIG. 6 essentially in that the clamping device 90 is designed in a manner comparable to the clamping device 54 described in connection with FIG. In the present case, by the corresponding embodiment of the clamping device 90, the stop element 84 is thus at least again pulled back so far when the piston 92 or pressure hose 94 is entrained with the sealing element 20 that the sealing element 20 is released from the moving surface 12.
  • the stop element may be resiliently loaded against the lower edge of the groove 88.
  • this embodiment can be at least substantially carried out again as the embodiments described above.
  • Corresponding parts are assigned the same reference numerals.
  • FIGS. 8 to 11 show, in a diagrammatic partial representation, further embodiments of the adjustable strip 28 with associated clamping device 54.
  • the respective clamping device 54 may, for example, again comprise at least one piston 56 and / or at least one pressure hose 58.
  • a strip-like piston 56 is provided, which is pressed by a, for example, in the transverse direction extending pressure hose 58 against the bar 28 to clamp them between the piston 56 and a mating surface 60, for example, again by an intermediate bar 68 (FIG. cf., in particular, FIGS. 8 and 9) or may be provided on another counter element (see eg FIGS. 10 and 11) or on the carrier.
  • the strip 28 is correspondingly adjustable in the pressing direction, for example, again by at least one pressure hose 62 (cf., in particular, FIGS. 8 and 11).
  • the clamping device 54 can be activated to fix the bar 28 in the desired position by clamping.
  • the clamping device 54 is similar to that of Figure 3 again designed so that the bar 28 is moved at a loading of the piston 56 and the pressure hose 58 a piece down.
  • the piston 56 and the pressure hose 58 are again arranged in a guide 66 which is correspondingly inclined here, for example, relative to the horizontal.
  • the piston 56 for example, again by a transversely be formed to the running direction L of the moving surface 12 (see also Figure 3 again) extending intermediate strip.
  • a further intermediate strip 68 (cf., in particular, FIGS. 8 and 9) can be provided on the other side of the strip 28, for example.
  • this intermediate strip 68 is also arranged again in an obliquely running guide 69.
  • such an oblique guide is not mandatory.
  • the strip 28 can now be roughened, for example, on both sides or only on one side and / or, in the extreme case, for example, be provided with a sawtooth profile 100 in order to reduce the friction, e.g. between the strips 56, 68 to increase accordingly and thus to achieve larger angles in the guide.
  • the sawtooth profile may also be applied to the ledges or guides 56, 68 (see, for example, Figure 8). As a result, larger means, in particular between the direction of movement of the strips 56, 58 and the bar 28 can be achieved.
  • a lug 102 or the like prevents the teeth from getting caught.
  • the piston 56 is no longer used as a guide.
  • the relevant guide has therefore been omitted here.
  • the strip 28 must be pressed against the guide differently, for example via an elastic, compressible material 104 (cf., for example, FIG. 9), hoses, springs 106 (cf., for example, FIG. 10) and / or the like.
  • the distance a D may possibly be relatively small, it is also conceivable to omit the spacers 64 (cf., for example, FIG. 3) and, for example, to use the strip as a stop, as shown in FIG.

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Claims (40)

  1. Dispositif d'étanchéité (10) pour l'étanchéité latérale d'au moins une zone de surpression ou de dépression adjacente à une surface mobile (12) dans une machine à papier comprenant au moins un élément d'étanchéité (20) opposé à la surface mobile (12), qui est monté de manière à pouvoir pivoter au moyen d'une articulation (22) et qui peut être sollicité par une force de contact (FP) par pivotement correspondant pour s'appliquer contre la surface mobile (12),
    caractérisé en ce que
    l'articulation (22) et avec celle-ci, l'axe de pivotement (26), peut être déplacée notamment dans la direction de la force de contact (FP) vers la surface mobile (12) et depuis celle-ci et peut être fixée dans sa position respective.
  2. Dispositif d'étanchéité selon la revendication 1,
    caractérisé en ce que
    l'articulation (22) est formée sur une barre (28) réglable et pouvant être fixée dans sa position respective.
  3. Dispositif d'étanchéité selon la revendication 2,
    caractérisé en ce que
    la barre (28) s'étend transversalement à la direction d'avance (L) de la surface mobile (12).
  4. Dispositif d'étanchéité selon la revendication 2 ou 3,
    caractérisé en ce que
    la barre (28) peut être fixée sur un support (36).
  5. Dispositif d'étanchéité selon l'une quelconque des revendications 2 à 4,
    caractérisé en ce que
    la barre peut être fixée par le biais d'un dispositif de serrage (54) dans sa position respective.
  6. Dispositif d'étanchéité selon la revendication 5,
    caractérisé en ce que
    le dispositif de serrage (54) comprend au moins un piston (56) et/ou au moins un tuyau de pression (58).
  7. Dispositif d'étanchéité selon l'une quelconque des revendications 2 à 6,
    caractérisé en ce que
    la barre (28) est pourvue d'éléments d'espacement (64) et peut être réglée dans une position extrême dans laquelle ces éléments d'espacement (64) s'appliquent contre la surface mobile (12) et définissent ainsi une position prédéfinissable de l'articulation par rapport à la surface mobile (12).
  8. Dispositif d'étanchéité selon la revendication 7,
    caractérisé en ce que
    plusieurs éléments d'espacement (64) répartis sur la surface mobile (12) transversalement à la direction d'avance (L) sont prévus.
  9. Dispositif d'étanchéité selon la revendication 7 ou 8,
    caractérisé en ce que
    les éléments d'espacement (64) sont formés au moins en partie par des boutons, des galets et/ou similaires.
  10. Dispositif d'étanchéité selon l'une quelconque des revendications 2 à 9,
    caractérisé en ce que
    les éléments d'espacement (64) peuvent être à nouveau soulevés de la surface mobile (12) par une course de recul prédéfinissable, notamment lors de la fixation de la barre (28).
  11. Dispositif d'étanchéité selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'axe de pivotement (26) de l'élément d'étanchéité (20), défini par l'articulation (22), s'étend transversalement à la direction d'avance (L) de la surface mobile (12).
  12. Dispositif d'étanchéité selon l'une quelconque des revendications 2 à 11,
    caractérisé en ce que
    la barre (28) est pourvue, pour former l'articulation (22), d'une portion d'engagement (30) qui vient en prise dans une rainure (32) prévue dans l'élément d'étanchéité (20).
  13. Dispositif d'étanchéité selon la revendication 12,
    caractérisé en ce que
    la rainure (32) est prévue sur un côté frontal (34) arrière de l'élément d'étanchéité (20), considéré dans la direction d'avance (L) de la surface mobile (12).
  14. Dispositif d'étanchéité selon l'une quelconque des revendications 2 à 13,
    caractérisé en ce que
    l'élément d'étanchéité (20), considéré généralement dans la direction d'avance (L) de la surface mobile (12), est disposé entre la barre (28) et une butée (38) associée notamment à un support (36) ou similaire.
  15. Dispositif d'étanchéité selon la revendication 14,
    caractérisé en ce que
    la surface frontale (40) avant de l'élément d'étanchéité (20), tournée vers la butée (38), a une courbure convexe.
  16. Dispositif d'étanchéité selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'élément d'étanchéité (20) comprend une pièce de ventilation (42) qui s'écarte, dans la direction d'avance (L) de la surface mobile (12), de l'extrémité (44) de l'élément d'étanchéité (20) coopérant hermétiquement avec cette surface (12), afin d'assurer dans une région de ventilation (48) se raccordant à la région d'étanchéité (46), une ventilation d'ouvertures (16) prévues notamment dans la surface mobile (12).
  17. Dispositif d'étanchéité selon l'une quelconque des revendications 2 à 16,
    caractérisé en ce que
    la pièce de ventilation (42) forme avec la surface mobile (12) une fente (50) s'élargissant dans sa direction d'avance (L).
  18. Dispositif d'étanchéité selon l'une quelconque des revendications 2 à 17,
    caractérisé en ce que
    l'élément d'étanchéité (20) peut être sollicité de manière correspondante pour s'appliquer contre la surface mobile (12) dans la région de son extrémité (44) coopérant hermétiquement avec cette surface (12).
  19. Dispositif d'étanchéité selon l'une quelconque des revendications 2 à 18,
    caractérisé en ce que
    l'élément d'étanchéité (20) présente, dans la région de son extrémité (44) coopérant hermétiquement avec la surface mobile (12), une pièce (52) s'écartant généralement de la surface mobile (12) et peut être sollicité de manière correspondante par le biais de cette pièce (52).
  20. Dispositif d'étanchéité selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'élément d'étanchéité (20) peut être sollicité de manière correspondante pour s'appliquer contre la surface mobile (12) par le biais d'au moins un tuyau de pression (24).
  21. Dispositif d'étanchéité selon l'une quelconque des revendications 2 à 20,
    caractérisé en ce que
    la barre (28) peut être réglée par au moins un tuyau de pression (62).
  22. Dispositif d'étanchéité selon l'une quelconque des revendications 2 à 21,
    caractérisé en ce que
    la barre (28) est réalisée en plusieurs parties, notamment en deux parties, et en ce que les parties de la barre (28', 28") peuvent être réglées l'une par rapport à l'autre d'une valeur (a) définie, notamment par coulissement.
  23. Dispositif d'étanchéité selon la revendication 22,
    caractérisé en ce que
    la barre en plusieurs parties (28) est d'abord réglable dans son état étiré, dans une mesure telle que la pièce de ventilation (42) de l'élément d'étanchéité (20) s'applique contre la surface mobile (12).
  24. Dispositif d'étanchéité selon la revendication 23,
    caractérisé en ce que
    l'élément d'étanchéité (20) peut être sollicité par le biais de la barre (28) dans une mesure telle que la pièce de ventilation (42) soit pressée contre la surface mobile (12).
  25. Dispositif d'étanchéité selon l'une quelconque des revendications 2 à 24,
    caractérisé en ce que
    la barre (28) comprend deux parties de barre (28', 28") réglables l'une par rapport à l'autre d'une course prédéfinissable (aD), et la partie de barre (28') présentant l'articulation (22) ou la portion d'engagement (30) peut être à nouveau ramenée en arrière après la fixation de l'autre partie de barre (28") suivant la course prédéfinissable (a), afin de soulever à nouveau la pièce de ventilation (42) de la surface mobile (12).
  26. Dispositif d'étanchéité selon la revendication 25,
    caractérisé en ce que
    la partie de barre (28') présentant l'articulation (22) ou la portion d'engagement (30) est contrainte par ressort dans sa position ramenée en arrière.
  27. Dispositif d'étanchéité selon l'une quelconque des revendications 2 à 26,
    caractérisé en ce que
    la partie de barre (28') présentant l'articulation (22) ou la portion d'engagement peut être sollicitée par le biais d'au moins un tuyau de pression (76) dans sa position sortie.
  28. Dispositif d'étanchéité selon l'une quelconque des revendications 2 à 27,
    caractérisé en ce que
    l'autre partie de barre (28") peut être fixée dans sa position respective par le biais d'un dispositif de serrage (54).
  29. Dispositif d'étanchéité selon la revendication 28,
    caractérisé en ce que
    le dispositif de serrage (54) comprend au moins un piston (56) et/ou au moins un tuyau de pression (58).
  30. Dispositif d'étanchéité selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'élément d'étanchéité (20) peut être fixé par le biais d'un dispositif de serrage (78) dans sa position de pivotement respective.
  31. Dispositif d'étanchéité selon la revendication 30,
    caractérisé en ce que
    le dispositif de serrage (78) comprend au moins un piston (80) et/ou au moins un tuyau de pression (82).
  32. Dispositif d'étanchéité selon la revendication 31,
    caractérisé en ce que
    le dispositif de serrage (78) est réalisé de telle sorte que l'élément d'étanchéité (20) se détache de la surface mobile (12) dans le cas d'une sollicitation du piston ou du tuyau de pression.
  33. Dispositif d'étanchéité selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'on prévoit un élément de butée (84) pouvant être fixé à une distance respective de la surface mobile (12) et limitant le mouvement d'application de l'élément d'étanchéité (20).
  34. Dispositif d'étanchéité selon la revendication 33,
    caractérisé en ce que
    l'élément de butée (84) peut être fixé dans sa position respective par le biais d'un dispositif de serrage (90).
  35. Dispositif d'étanchéité selon la revendication 34,
    caractérisé en ce que
    le dispositif de serrage (90) comprend au moins un piston (92) et/ou au moins un tuyau de pression (94).
  36. Dispositif d'étanchéité selon la revendication 34 et 35,
    caractérisé en ce que
    l'élément de butée (84) peut être ramené en arrière à nouveau par le biais d'au moins un tuyau de pression (96) avec entraînement de l'élément d'étanchéité (20), dans une mesure telle que l'élément d'étanchéité (20) se détache de la surface mobile (12).
  37. Dispositif d'étanchéité selon la revendication 35,
    caractérisé en ce que
    le dispositif de serrage (90) est réalisé de telle sorte que l'élément de butée (84), dans le cas d'une sollicitation du piston (92) ou du tuyau de pression (94) soit ramené en arrière à nouveau en entraînant l'élément d'étanchéité (20) dans une mesure telle que l'élément d'étanchéité (20) se détache de la surface mobile (12).
  38. Dispositif d'étanchéité selon l'une quelconque des revendications précédentes, pour l'étanchéité latérale d'au moins une zone de pression (P1, P2) adjacente à la paroi interne ou externe d'une enveloppe rotative (18) d'un cylindre d'aspiration ou de soufflage ou à une bande en mouvement.
  39. Dispositif d'étanchéité selon l'une quelconque des revendications précédentes, pour l'utilisation entre une caisse aspirante ou soufflante et l'enveloppe rotative (18) d'un cylindre d'aspiration ou de soufflage ou une bande en mouvement.
  40. Dispositif d'étanchéité selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'élément d'étanchéité (20) est réalisé sous la forme d'une barre d'étanchéité s'étendant au moins sensiblement sur toute la longueur du cylindre.
EP03001596A 2002-03-28 2003-01-24 Dispositif d' étanchéité Expired - Fee Related EP1348805B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10214132 2002-03-28
DE10214132A DE10214132A1 (de) 2002-03-28 2002-03-28 Dichtungseinrichtung

Publications (2)

Publication Number Publication Date
EP1348805A1 EP1348805A1 (fr) 2003-10-01
EP1348805B1 true EP1348805B1 (fr) 2007-11-14

Family

ID=27798240

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03001596A Expired - Fee Related EP1348805B1 (fr) 2002-03-28 2003-01-24 Dispositif d' étanchéité

Country Status (3)

Country Link
EP (1) EP1348805B1 (fr)
AT (1) ATE378466T1 (fr)
DE (2) DE10214132A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016040974A2 (fr) 2014-09-15 2016-03-24 Röchling Leripa Papertech GmbH & Co. KG Systèmes de baguettes d'étanchéité pour cylindres aspirants

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10331399A1 (de) * 2003-07-11 2005-01-27 Voith Paper Patent Gmbh Dichtungseinrichtung für eine Papiermaschine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2274641A (en) * 1938-02-07 1942-03-03 Abbott Suction roll
US2312519A (en) * 1939-06-10 1943-03-02 Beloit Iron Works Balanced seal for suction rolls
FI100897B (fi) * 1993-11-05 1998-03-13 Valmet Paper Machinery Inc Paperikoneen imutelan imulaatikon tiivistysrakenne ja menetelmä imutel an tiivistekäytössä
DE19751283B4 (de) * 1997-11-19 2007-12-20 Voith Patent Gmbh Dichtungseinrichtung
DE19842837A1 (de) * 1998-09-18 2000-03-23 Voith Sulzer Papiertech Patent Dichtungseinrichtung und Verfahren zur Abdichtung von Druckzonen in einer Papiermaschine
DE10110946A1 (de) * 2001-03-07 2002-09-12 Voith Paper Patent Gmbh Dichtungseinrichtung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016040974A2 (fr) 2014-09-15 2016-03-24 Röchling Leripa Papertech GmbH & Co. KG Systèmes de baguettes d'étanchéité pour cylindres aspirants

Also Published As

Publication number Publication date
DE10214132A1 (de) 2003-10-09
ATE378466T1 (de) 2007-11-15
DE50308575D1 (de) 2007-12-27
EP1348805A1 (fr) 2003-10-01

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