EP2217759B1 - Dispositif pour transférer une bande de papier d'une bande de soutien a une autre - Google Patents

Dispositif pour transférer une bande de papier d'une bande de soutien a une autre Download PDF

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Publication number
EP2217759B1
EP2217759B1 EP07847207A EP07847207A EP2217759B1 EP 2217759 B1 EP2217759 B1 EP 2217759B1 EP 07847207 A EP07847207 A EP 07847207A EP 07847207 A EP07847207 A EP 07847207A EP 2217759 B1 EP2217759 B1 EP 2217759B1
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EP
European Patent Office
Prior art keywords
web
fabric
suction box
felt
press
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Application number
EP07847207A
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German (de)
English (en)
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EP2217759A1 (fr
Inventor
Jyrki Savela
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Valmet Technologies Oy
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Metso Paper Oy
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Publication of EP2217759A1 publication Critical patent/EP2217759A1/fr
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    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F2/00—Transferring continuous webs from wet ends to press sections
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/48—Suction apparatus
    • 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
    • D21F3/04—Arrangements thereof
    • D21F3/045—Arrangements thereof including at least one extended press nip

Definitions

  • the subject of the present invention is a device for transferring a paper web from one support fabric to the other.
  • the device according to the invention is thus suitable, for example, for transferring the web from the wire section onto the press felt and from the press felt into the dryer section.
  • the device is particularly advantageous when transferring the paper or board web from the first press of the press section of the paper, board or other corresponding machine into the second press.
  • the device according to the invention can also be used at all or almost all locations in a paper machine, where the web is transferred from one fabric to another.
  • a conventional apparatus for having the features of the preamble of claim 1, is known from US 4,236,962 known.
  • the press section following the wire section of the paper machine usually consists of two presses arranged one behind the other, in which the paper web is usually transported by at least one felt, more generally supported by a fabric, from one press nip to the other, wherein the Paper web also runs supported over part of the stretch between two tissues.
  • tissue can also be understood as a transfer band.
  • the paper web from the first press ie the first press nip into the second press, ie the second press nip
  • it must first be removed from the first, for example upper felt of the first press and adhered to the second, for example lower felt.
  • the web, carried by said second felt is guided to the second press where it is placed on the felts of the second press. This is basically done in such a way that the web is first brought into contact with the first felt of the second press and then detached from the second felt of the first press, adhered to the first felt of the second press and in contact with the second felt of the second Press is brought.
  • Critical places in the web guide are those places where the web is detached from a felt and transferred to the next fabric. If the detachment of the web is not done carefully, there is a risk of web breaks or web breaks.
  • the point of detachment, ie lifting of the web is usually in a felt guide roller, which rotates around a felt of the first press, while the other felt continues its way relatively straight past the roller.
  • the first felt circulates around the roll, the web naturally has a centrifugal force which is dependent on the roll diameter and the roll speed, but in any case is relatively large, which, of course, tends to detach the web from the first felt.
  • suction rolls and transfer suction boxes their use for example in US 5,888,354 is described. Both types operate in principle so that suction is applied to the web by the felt continuing to support the web so that the web is released both from the felt located on the side opposite the suction device and at the suction side of the suction device Felt sticks.
  • Suction rolls are in themselves reliable devices, the use of which generally causes no problems in actually detaching the web from the first felt or holding the web to the second felt.
  • suction rolls problems of another kind in appearance First, adjusting the Saugsektorweite designed in suction rolls consuming and complicated, and secondly, suction rollers are expensive to buy, in operation and in maintenance.
  • the transfer suction box as a second option is considerably cheaper to buy and operate.
  • the use of the transfer suction box for detaching / lifting the paper web from the wire is treated.
  • this document is set out in detail how the paper web is guided together with wire and felt around the roller. In the vicinity of the roller, but behind this a transfer suction box is arranged, with which the web is detached from the wire.
  • the felt and the transfer suction box are arranged so that the felt and with it the web across the transfer suction box the sieve direction is deflected by an angle of less than 45 degrees.
  • the felt web undergoes a curvature, which leads to increased wear of both the lid and the felt.
  • the transfer suction box can not be used in very fast paper machines, because, as already mentioned above, the lid of the suction box and also the running over this felt wear out.
  • the felt barrel is traditionally set up so that the felt on the suction box changes its direction of travel and the felt is pressed against the suction box lid due to its tension.
  • both the above-mentioned change of the felt running direction on the suction box and the vacuum of the suction box suck the felt against the suction box lid, resulting in rapid wear of both the felt and the suction box lid.
  • This wear is reinforced when the felt runs at high speed over the suction box lid. For this reason, with the increasing speed of paper machines, the use of the transfer suction box has been steadily reduced.
  • the present invention seeks to remedy shortcomings of the prior art devices by providing a new type of solution for safely transferring the paper web from one support fabric to another.
  • Said solution comprises a suitable device and is based on the use of a transfer suction box such that the speed of the machine no longer has any influence on the wear of the box lid or the felt.
  • the object is achieved with a device according to claim 1.
  • a solution according to the invention takes place on the transfer suction no significant change in direction of the fabric / the paper web to the lid, so that the tension of the web / tissue causes no suction directed towards the suction force.
  • the only load which may be applied to the sack box cover is the suction force caused by the vacuum of the suction box.
  • the tissue does not touch the suction box at all, so that said wear problem is eliminated.
  • the required train of the paper web can be generated at the transfer point to ensure the safe web run.
  • the suction of the suction device is directed to the guide roller located on the side opposite to the suction device of the web and the paper web is detached from the guide roller side fabric substantially at the point at which the direction of movement of the guide roller side fabric, the guide roller following, from the direction of movement begins to diverge away at the suction device side tissue and at this point also an air layer laterally outside the edge of the paper web is sucked through substantially at the location of the web separation through the tissue.
  • a slot located in the lid of the suction means or a series of discrete openings extending transversely of the paper web is placed beginning at the plane passing through the axial centerline of the guide roll and through the line from which the paper web begins to follow from the guide roll triggers, runs.
  • the slot or the row of discrete openings may be longer than the width of the paper web and be shorter than the width of the located on the side of the suction device tissue.
  • suction is applied to the infeed nip of the guide roll where the overpressure tends to dislodge the web from the leader roll side fabric.
  • suction means for transferring the web from a backing to another serving device located on at least either side of the web, suction means for releasing the web from the first web, the web then being carried by the second web and one opposite to the sucker Side of the web and the fabric guide roller, with which the fabric from which the web has been peeled, is transported, it is characteristic that said suction means of a transfer suction box with a lid and one or more suction slots or one or more rows of discrete openings is transverse to the fabric erection in this cover and this suction box is arranged at the guide roller, that one of the slots of the lid is substantially at that point of the guide roller to lie where the roller surface starts to diverge away from the direction of the onulsaugkastenrenten tissue, wherein yourself at least one of the slots or one of the series of openings under the second fabric extends across a width greater than the width of the web resting on the fabric.
  • the slot or row of discrete openings is shorter than the width of the tissue located on the side of the suction
  • one of the slots of the lid is located at the inlet gusset of the guide roller.
  • Fig. 1 shows a partial view of a prior art and in the U.S. Patent 5,888,354 treated paper machine press section including the device for transferring the paper web from one press part part into the other.
  • the press section shown in the drawing consists of a first press 10 and a second press 20.
  • the first press is formed in the drawing by the shoe roll 12 and its counter roll 14, by the nip of the paper web lying between two felts 32 and 34 in the illustration running from left and right.
  • the first felt 32 runs as a loop, within which the shoe roll 12 is located, around the in this case adjustable felt guide roll 16 and continues its way upwards.
  • the second felt 34 in turn passes over the counter-roller 14.
  • the paper web W is detached by means of the transfer suction box 18 on the route between the counter-roller 14 and the felt-guiding roller 16 from the first felt 32.
  • the suction of the suction box 18 is applied to the web W through the second felt 34 to release the web from the first felt 32. Since at the same time the running direction of the first felt 32 no longer leads along the lid of the suction box 18, but slightly runs higher, the detachment of the paper web W succeeds easily from the first felt.
  • the suction of the suction box 18 also ensures that the paper web W adheres to the second felt 34.
  • the second felt 34 is raised by means of the suction box 18 so as to ensure that the second felt is constantly in contact with the lid of the suction box 18, which in turn ensures that a uniform suction is constantly applied to the paper web W. that reliably holds the web W on the second felt 34.
  • a procedure is associated with a relatively high wear load of the suction box lid, as a result of which both the lid and the press felt wear out quickly. This is the case especially at higher production speeds, eg over 1100 m / min.
  • the paper web W is, lying on the second felt 34, passed into the second part 20 of the press section, ie in the second press, which is represented in the drawing by the third felt 22 and the transfer suction roll 24.
  • the transfer suction roll 24 serves to lift the paper web from the second felt 34 of the first press 10 before this second felt 34 is passed down the roll 26.
  • the suction roll removes the paper web from the second felt 34 in the same manner as described above in connection with the transfer suction box 18.
  • the third felt 22 here representing the second press 20 transports the paper web W until the fourth felt (not shown) assigned to the second press is added from below, the paper web then being again located between two felts. into the nip of the second press and possibly also in further following nips is performed.
  • Fig. 2 is a completely equivalent and also in the U.S. Patent 5,888,354 treated paper machine press section, wherein the same reference numerals designate the same components.
  • the only difference from in Fig. 1 The solution shown is that the in Fig. 1 shown transfer suction 18 is now replaced by the suction roller 18 ', with the completely same function as with the suction box 18 is achieved. In this solution eliminated by the rotating suction roller 18 'the problem of felt and the Saugkastendeckel wear.
  • Fig. 3 shows a general view of a device according to the invention, ie, a preferred embodiment of the invention having press section of a paper machine.
  • the press section in Fig. 3 consists of the first press 40 built around the first press nip 42 and the second press 60 built around the second press nip 62.
  • the web W for example, carried by the wire 44, passes from the wire section of the paper machine into the first press 40 Sieve 44, the web, using the transfer suction box 48 and the guide roller 50 is placed on the first press felt 46.
  • the web W supported by the first press felt 46 is fed into the press nip 42 between said felt 46 and the press felt 52.
  • the web located between the felt 46 and the press felt 52, passes to the guide roll 54, where the web is removed from the press felt 52 by means of the transfer suction box 56 located on the opposite side of the web from the guide roll 54.
  • the press felt 52 continues its way down, and the web is guided by the press felt 46 to the second press 60.
  • the web is first brought into contact with a third press felt 66 before the press nip 62, then detached from the press felt 46 by means of the transfer suction box 68 and laid down on the third press felt 66. Thereafter, the web, between the third press felt 66 and the first transfer belt 72 located, passed through the second press nip 62.
  • the press felt 66 is released from the web and deflected at the guide roller 70.
  • the web has a large adhesion to the transfer belt 72 so as to follow the path of the transfer belt 72.
  • the web is brought into contact with a dry transfer felt 166 and deposited on the transfer felt 166 by means of the transfer suction box 169. This conveys the web further into the dryer section of the machine.
  • Fig. 4 shows a very similar construction of a press section of a paper machine, wherein the same reference numerals as in Fig. 3 be used for the designation of functionally identical parts. Deviating from Fig. 3 Here, the web is transferred from the transfer belt 72 by means of a suction roll 170 on the dry or transfer felt 166.
  • preferred embodiment of the invention following solution for transferring the paper web from the first press 40 of the paper machine in the second press 60 passes the paper web, located between the first press felt 46 and the second press felt 52, coming from the left to the felt guide roll 54 of the pressing devices that is to the Example may consist of a shoe press or a roller press.
  • a transfer suction box 56 is arranged in the roller 54, the lid 80 of which has two slots 82 and 82 in the embodiment shown.
  • the first slot 82 viewed in the direction of web travel is preferably located exactly at the guide roller 54.
  • the slot may also be at the entry gusset (left in the drawing) or, relative to the roller 54, at the location of the web where the first press felt 46 is the surface following the roller 54, a direction that deviates from the direction of the second press felt, that is to say it is arranged on the outlet gusset (on the right in the drawing).
  • the first slot 82 may begin at the plane passing through the axial centerline of the guide roller 54 and through the line at which the paper web is released from the felt 46 beginning to follow the guide roller 54. It should also be noted that the number of slots is also decisive for their placement. In other words, the more slots there are, the farther away from the guide roller location may be the outermost slots.
  • the transfer suction box 56 is adapted to peel the paper web from the first felt 46 following the surface of the guide roll 54 and hold it against the surface of the second press felt 52.
  • a second slot in the lid 80 of the transfer suction box 56 behind the release point serves the purpose of securing the adherence of the web to the fabric 52 even after the actual detachment operation;
  • the web can be held to the fabric 52 through conventional vacuum boxes 58 to the guide roll 64 of the third press felt 66 of the second press 60.
  • Essential to the placement of the transfer suction box 56 according to the first embodiment of this invention is in addition to the arrangement of the first slot 82 of the suction box lid 80 so that it begins at the latest substantially at the point where the press felt 46 and the paper web W separate from each other, -
  • the suction is located on the previous inlet gore -
  • the lid 80 of the suction box 56 is flat or (in the case that the lid of the shape of the roll surface follows) is preferably concave, and that the course of the lid 80th of the suction box 56 coincides with the course of the fabric 52.
  • the Saugkastendeckel 80 causes no directional changes of the fabric 52, but the press felt 52 moves from the guide roller 54 from exactly in the direction determined by the guide roller 64 of the second press 60 direction.
  • Fig. 5 As a second preferred embodiment of the invention, it is also shown how the web is detached from the second press felt 52 and brought to adhere to the third press felt 66. This is done by arranging within the second press felt loop a guide roll 70 around which the press felt 52 is guided, while at the same time the transfer suction box 68 located within the third press felt loop 66 at the guide roll 70 lifts the web from the press felt 52 and onto the press felt 66 transferred.
  • the cover 86 of the transfer suction box 68 corresponding to this second embodiment has only one slot 88, this slot 88 having to be placed in the web running direction at the point where the press felt 52 separates from the press felt 66.
  • transfer suction box solutions according to a third and fourth preferred embodiment of the invention are shown in the transfer of the paper web from the first to the second press nip of the paper machine.
  • the paper web located between the first press felt 46 and the second fabric 52, arrives from the left as far as the guide roll 54.
  • a transfer suction box 56 is provided on the side of the fabric 52 in the roll 54 arranged, the lid 90 is concave-shaped and in the embodiment shown four slots 92, 94, 96 and 98 has.
  • the placement and operating principle of the last two slots 96 and 98 are substantially the same as those of the slots 82 and 82 of the previously described embodiment, ie, they serve to release the web from the first press felt 46 (slot 96) and hold the web on the web Fabric 52 (slot 98).
  • the slots 92 and 94 located in front are in the region of the inlet gusset of the guide roller 54. Since there is overpressure in the inlet gusset, the slots located in this area serve the purpose of detaching the web from the first press felt 46 before the guide roller 54.
  • the suction prevailing in the slots 92 and 94 enhances the differential pressure exiting the web from the felt.
  • the lid 90 of the transfer suction box has the same course as the fabric 52.
  • Fig. 6 the transfer of the paper web from the second felt 52 to the third press felt 66 is shown. This process begins with the detachment of the paper web from the second press felt 52.
  • the lid 100 of the transfer suction box 68 is designed differently is.
  • the lid 100 has two slots 102 and 104, which are positioned so that the first slot 102 is in the region of the inlet gusset of the guide roller 70 (ie on the side of the incoming web) and the second slot 104 in the region of the outlet gusset.
  • the slits 102 and 104 serve the purpose of first releasing the web from the press felt 52 (102) and then adhering it to the third press felt 66 (104).
  • a web having a dry content of 16% showed a good transfer history.
  • the dry content should not be below 25%.
  • the width of the usually one to five slots 114 and 116 in the lid 112 of the in Fig. 7 shown box 110 is on the order of 5-20 mm. It has been found that with larger slot widths the felt bends into the slot, resulting in both slot and felt wear. Also, then the Sog pressure increases significantly.
  • the cover strips 118 are preferably made of ceramic material and are rounded at their edges to minimize wear of the strips 118 and the felt. In certain cases, plastic strips can also be considered.
  • the strips 118 are inserted into holders 120, which are fastened by means of a form-fitting connection to counter profiles 122 of the suction box 110 in order to be able to exchange the strips 118 easily.
  • the strips are resiliently mounted, this can, for. B. by a gas-filled tube (not shown) can be achieved in Fig. 7 between the Holder 120 and the counter-profile 122 would be inserted. This spring action prevents a shock on the strips when suddenly a thicker lump of paper between the suction box and the guide roller device, z. B. lies between the felts.
  • Fig. 8 shows a transfer point similar to the transfer between press felt 46 and press felt 52 in Fig. 5 however, only one slot 82 is shown in the transfer suction box 56 here.
  • the illustration shows a view from below Fig. 5 with press felt 46 and guide roll 54 omitted.
  • Fig. 8 It is clearly shown that the press felt 52, the slit 82 and the web W have a decreasing width in this order. In other words, the felt is wider than the slot and the slot is wider than the track.
  • an air layer is extracted in an edge region 200 on both sides of the web W.
  • Slidable side shutters 182 allow the width of the slot 82 to be adjusted to adjust the width of the extracted air layer. It has further been shown that it is advantageous if the lateral projection of the press felt 52 over the slot 82 is greater than the projection of the slot 82 over the web W. In other words, the dimension Y may preferably be greater than X in Fig. 8 However, the invention also works satisfactorily when X and Y are about the same. If Y is chosen large compared to X. This has beneficial effects on energy consumption and tissue wear. Advantageous dimensions are 5 to 150 mm for X and in particular 40 to 70 mm for X. Good results have been achieved at values of 100 to 200 now for the value Y.
  • the slit (s) may also be implemented as one or more series of discrete openings extending in the transverse direction of the web (width direction).
  • the openings are circular holes or short slots or the like.
  • FIG. 9 a schematic side view of a transfer point to which the invention is applied.
  • a preferably compressed air-filled hose 180 is provided which carries the bar 118.
  • FIG. 9 also shows a dimension Z that can be adjusted between the lid of the suction box 56 (shown here as the upper edge of the strips 118) and the web-receiving felt 52. It has been found that good results are obtained in the transfer of the web, even if there is a distance (dimension Z) between the suction box lid and the receiving felt. Good results have been obtained for values of Z in the range of 0.5 to 5 mm and in particular in the range of 1 to 3 mm.
  • the devices described operate at pressures in the suction box which are from 1 to 40 kPa and in particular from 15 to 35 kPa below the ambient pressure.
  • the device according to the invention can be used not only for the transfer of the web within the press section described here by way of example, but also in connection with other web transfer stations of the paper machine. It is further understood that although the invention has been referred to exclusively as paper machines above, the invention is equally applicable to carton, tissue and pulp machines. Thus, the term "paper” also includes cardboard as a subgroup.

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Claims (13)

  1. Dispositif pour transférer une bande de papier d'une toile de soutien à une autre, comprenant des toiles (44, 46 ; 46, 52 ; 52,66 ; 66,72) se trouvant au moins des deux côtés de la bande de papier (W), un dispositif d'aspiration (48 ; 56 ; 68), à l'aide duquel la bande (W) est détachée de la première toile (44, 46, 52, 66) et "agrafée" à la deuxième toile, et un rouleau de guidage (50 ; 54 ; 70), disposé sur le côté, opposé au dispositif d'aspiration (48 ; 56 ; 68), de la bande (W) et des toiles (44, 46, 52), rouleau de guidage à l'aide duquel toute première toile, dont la bande (W) a été détachée, continue à être transportée, où
    le dispositif d'aspiration est composé d'un caisson d'aspiration de transfert (48 ; 56 ; 68), comprenant un couvercle (80 ; 86 ; 90 ; 100 ; 112) avec une ou plusieurs fentes d'aspiration (82, 84 ; 88 ; 92, 94, 96, 98 ; 102, 104, 116) ou une ou plusieurs séries d'ouvertures discrètes, s'étendant dans la direction transversale de la bande de papier (W), et ce caisson d'aspiration de transfert étant placé, concernant le rouleau de guidage (50 ; 54 ; 70), de manière que l'une des fentes (82 ; 88 ; 96; 104, 116), ou l'une des séries d'ouvertures discrètes, s'étendant dans la direction transversale de la bande de papier (W), du couvercle (80 ; 86 ; 90 ; 100 ; 112) vienne se placer sensiblement en un emplacement du rouleau de guidage (50 ; 54 ; 70) auquel la surface du rouleau (50 ; 54 ; 70) commence à diverger en s'écartant de la direction de la deuxième toile (46 ; 52 ; 66), se trouvant du côté du caisson d'aspiration de transfert (48 ; 56 ; 68),
    caractérisé en ce qu'
    au moins l'une des fentes (82 ; 88 ; 96 ; 104, 116) ou une des séries d'ouvertures s'étende sous la deuxième toile, sur une largeur plus grande que la largeur de la bande (W) reposant sur la toile (46 ; 52 ; 66).
  2. Dispositif selon la revendication 1,
    caractérisé en ce que
    la au moins une fente (84 ; 98 ; 104), ou la au moins une série d'ouvertures discrètes, est plus courte que la largeur de la toile (46 ; 52 ; 66) se trouvant du côté du dispositif d'aspiration (48 ; 56 ; 68 ; 110).
  3. Dispositif selon la revendication 1 ou 2,
    caractérisé en ce que
    la au moins une fente (84 ; 98 ; 104), ou la au moins une série d'ouvertures discrètes sur chaque côté de la bande W dépasse latéralement de 5 à 150 mm, de préférence de 40 à 70 mm du bord de bande.
  4. Dispositif selon la revendication 1, 2 ou 3,
    caractérisé en ce que
    la deuxième toile fait saillie latéralement de 100 à 200 mm sur chaque extrémité de la fente (84 ; 98 ; 104), ou la série d'ouvertures discrètes.
  5. Dispositif selon la revendication 1,
    caractérisé en ce que
    le couvercle (80 ; 86 ; 100) du caisson d'aspiration de transfert (56 ; 86 ; 100) est plan, c'est-à-dire est rectiligne.
  6. Dispositif selon la revendication 1,
    caractérisé en ce que
    le couvercle (90 ; 112) du caisson d'aspiration de transfert (90 ; 110) est de configuration concave.
  7. Dispositif selon l'une quelconque des revendications 1 à 6,
    caractérisé en ce que
    le couvercle (80) du caisson d'aspiration de transfert (56) présente deux fentes (82, 84) ou série d'ouvertures discrètes, dont la première fente (82), en observant dans la direction de défilement de la toile, ou la première série, en observant dans la direction de défilement de la toile, d'ouvertures discrètes sert au détachement de la bande de papier (W) vis-à-vis de la toile (46), extérieure en observant depuis le caisson d'aspiration de transfert (56), et la deuxième fente (84), ou la deuxième série d'ouvertures discrètes, sert à assurer l'agrafage de la bande de papier (W) sur la toile (52) se trouvant sur le côté du caisson d'aspiration de transfert (56).
  8. Dispositif selon l'une quelconque des revendications 1 à 7,
    caractérisé en ce que
    le couvercle (90 ; 110) du caisson d'aspiration de transfert (56 ; 70) présente au moins deux fentes (92, 94, 96, 98 ; 102, 104) ou séries d'ouvertures discrètes, dont au moins la première fente (92 ; 94 ; 102), en observant dans la direction de défilement de la toile, ou la première série, en observant dans la direction de défilement de la toile, d'ouvertures discrètes se trouve dans la zone du gousset d'entrée du rouleau de guidage (54 ; 70).
  9. Dispositif selon la revendication 8,
    caractérisé en ce que
    le couvercle (90) du caisson d'aspiration de transfert (56) présente plusieurs fentes (92, 94) ou séries d'ouvertures discrètes, se trouvant dans la zone du gousset d'entrée du rouleau de guidage (54).
  10. Dispositif selon l'une quelconque des revendications 1 à 9,
    caractérisé en ce que
    l'allure du couvercle (80 ; 86 ; 90 ; 100 ; 112) du caisson d'aspiration de transfert (48 ; 56 ; 68) coïncide avec l'allure de la deuxième toile (46 ; 52 ; 66).
  11. Dispositif selon l'une quelconque des revendications 1 à 10,
    caractérisé en ce que
    la surface du rouleau de guidage (50 ; 54 ; 70) est cannelée.
  12. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    des éléments de réglage (182) sont prévus, pour régler la longueur active des fentes (82, 84) ou de la série d'ouvertures discrètes, dans la direction de la largeur de la bande.
  13. Machine à papier, avec un dispositif pour transférer la bande de papier d'une toile de soutien à une autre, selon l'une quelconque des revendications 1 à 12, caractérisé en ce que,
    concernant lesdites toiles (46, 52, 66), il s'agit de feutres d'une partie presse de la machine à papier, et le caisson d'aspiration de transfert (56, 68, 110) sert au passage de la toile, d'une première presse (40) en une deuxième presse de la partie presse (60).
EP07847207A 2007-11-19 2007-11-19 Dispositif pour transférer une bande de papier d'une bande de soutien a une autre Active EP2217759B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2007/062512 WO2009065433A1 (fr) 2007-11-19 2007-11-19 Procédé et dispositif pour transférer une bande de papier d'un tissu de soutien sur un autre

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EP (1) EP2217759B1 (fr)
CN (1) CN101868578B (fr)
AT (1) ATE514814T1 (fr)
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WO (1) WO2009065433A1 (fr)

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DE102007027270A1 (de) * 2007-06-11 2008-12-18 Voith Patent Gmbh Verfahren und Maschine zur Herstellung einer einseitig glatten Papierbahn
FI122309B (fi) * 2008-03-28 2011-11-30 Metso Paper Inc Menetelmä ja laitteisto kuiturainaradan siirtämiseksi tukikudokselta toiselle
DE102011082159A1 (de) 2011-09-06 2013-03-07 Voith Patent Gmbh Vorrichtung zur Übergabe und Stabilisierung einer Faserstoffbahn
DE102011082161A1 (de) * 2011-09-06 2013-03-07 Voith Patent Gmbh Pressenpartie einer Maschine zur Herstellung einer Faserstoffbahn
AT514702B1 (de) * 2014-02-17 2015-03-15 Jud Ag Papiermaschinen Anlage zur Förderung von Materialien, Produkten u.dgl. mit mindestens einem in sich geschlossenen Förderband
CN107558287A (zh) * 2017-09-28 2018-01-09 浙江兰良实业有限公司 用于玻璃纤维纸生产线上成型加工和烘干加工工序间的中转装置

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GB1530246A (en) 1976-04-14 1978-10-25 Valmet Oy Method of and means for detaching and conducting a paper web in a paper-making machine
FI60897C (fi) * 1978-06-16 1982-04-13 Valmet Oy Foerfarande och anordning i en pappersmaskin foer loesgoering av banan fraon en formningsvira och foer oeverfoering av densamma till en till presspartiet hoerande vaevnad
US4561938A (en) * 1984-02-17 1985-12-31 M/K Plank Corporation Forming roll apparatus
FI83103C (fi) * 1987-06-30 1992-12-15 Tampella Oy Ab Anordning foer att styra en mellan virorna gaoende bana upp pao en vira
FI110440B (fi) 1996-04-04 2003-01-31 Metso Paper Inc Rainan siirto paperikoneen kaksihuopaisesta viimeisestä puristinnipistä seuraavalle kuivatusosalle
DE19644110A1 (de) * 1996-10-31 1998-05-07 Voith Sulzer Papiermasch Gmbh Saugkasten
FI965277A (fi) * 1996-12-31 1998-07-01 Valmet Corp Paperikoneen imulaatikko ja menetelmä paperikoneen imulaatikossa
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DE10333525A1 (de) * 2003-07-23 2005-02-17 Voith Paper Patent Gmbh Anordnung zur Trennung und/oder Überführung einer Faserstoffbahn

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WO2009065433A1 (fr) 2009-05-28
CN101868578A (zh) 2010-10-20
DE102008043294A1 (de) 2009-05-20
EP2217759A1 (fr) 2010-08-18
CN101868578B (zh) 2012-12-26
ATE514814T1 (de) 2011-07-15

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