EP3408444B1 - Presse pour une machine de fabrication d'une bande de matière fibreuse - Google Patents

Presse pour une machine de fabrication d'une bande de matière fibreuse Download PDF

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Publication number
EP3408444B1
EP3408444B1 EP16816643.7A EP16816643A EP3408444B1 EP 3408444 B1 EP3408444 B1 EP 3408444B1 EP 16816643 A EP16816643 A EP 16816643A EP 3408444 B1 EP3408444 B1 EP 3408444B1
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EP
European Patent Office
Prior art keywords
press
fabric
guide roll
guide
roll
Prior art date
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Active
Application number
EP16816643.7A
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German (de)
English (en)
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EP3408444A1 (fr
Inventor
Daniel Gronych
Thomas RÜHL
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Voith Patent GmbH
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Voith Patent GmbH
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Publication of EP3408444A1 publication Critical patent/EP3408444A1/fr
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Publication of EP3408444B1 publication Critical patent/EP3408444B1/fr
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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
    • D21F3/04—Arrangements thereof
    • D21F3/045—Arrangements thereof including at least one extended press nip
    • 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
    • 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
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F7/00—Other details of machines for making continuous webs of paper
    • D21F7/02—Mechanical driving arrangements
    • 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
    • D21F1/36—Guiding mechanisms
    • D21F1/40—Rolls

Definitions

  • the invention relates to a defined as in the preamble of claim 1 press for a machine for producing a fibrous web such as in particular a paper, cardboard or pulp web.
  • a press of the type mentioned is, for example DE 10 2011 082 161 A1 known.
  • the press described therein comprises at least one press nip and two band-shaped coverings in the form of an underfelt and an upper felt.
  • the at least one press nip is formed between a press roll and a counter press roll of the press for dewatering passing the fibrous web.
  • the underfelt and the top felt are each guided by a plurality of guide rollers to the endless circulation, so that they run together through the press nip to pass the fibrous web sandwiched between received through the press nip.
  • the underfelt and the top felt are separated again at a separation point in order to continue the fibrous web on the underfelt and to separate it from the top felt.
  • a arranged at the separation point guide roller of the plurality of guide rollers is an evacuated guide roller of the lower felt and is used inter alia to hold the fibrous web at the separation point on the lower felt.
  • Such an evacuated guide roll is also referred to as Saugfilzleitwalze.
  • Saugfilzleitwalzen be used in particular above web speeds of 1100 m / min to 1200 m / min, since the web separation as described above with a cheaper vacuum cleaner is no longer possible. Saugfilzleitwalzen offer the advantage of a very safe web separation up to high speeds, but are very expensive in terms of investment costs, spare parts and operating costs.
  • a conventional Saugfilzleitwalze is usually carried out in two or more zonig, which is why a relatively expensive suction head is necessary for the extraction.
  • a conventional Saugfilzleitwalze also requires a rotary drive, since they are frustrated is and consumes even drive power in the felt loop. The drive also prevents the felt tension from falling too much directly after the press nip, which can otherwise lead to web disturbances.
  • Press arrangements with driven Saugfilzleitwalzen be, for example, in the EP 1 136 619 A2 , of the EP 1 375 740 A1 as well as the EP 1 225 271 described.
  • the rotary actuator When the rotary drive of the Saugfilzleitwalze is provided together with the suction on a drive side of the press, the rotary actuator must be performed usually eccentrically with a gear. Alternatively, the rotary drive can be performed centric on the drive side, but then usually the suction is expensive to move to a leader page of the press.
  • the invention has for its object to provide a defined as in the preamble of claim 1 press for a machine for producing a fibrous web, so that with little effort an increased web security can be achieved after cooperating with the two fabrics press nip.
  • a press for a machine for producing a fibrous web in particular a paper, board or pulp web, comprises at least one press nip formed between a press roll and a counterpressure roll of the press for dewatering passing the fibrous web, and two band-shaped coverings on, which are each guided by a plurality of guide rollers to the endless circulation.
  • the two fabrics are guided so that they pass together through the press nip to pass the fibrous web sandwiched therebetween through the press nip. After the press nip the two fabrics are separated again at a separation point to continue the fibrous web on one string and to separate from the other stringing.
  • An arranged at the separation point guide roller of the plurality of guide rollers is an evacuated guide roller of a string to hold the fibrous web at the separation point on the one string, and one of the evacuated guide roller in the endless circulation of a string immediately following guide roller of the plurality of guide rollers of one Covering is provided with a rotary drive.
  • the evacuated guide roller has no rotary drive and no transmission.
  • a suction head of the evacuated guide roll can thus be designed simpler.
  • the guide roller immediately following the suctioned guide roller has a central drive pin.
  • the fact that the suctioned guide roller directly following guide roller has a rotary drive can the tension of the fibrous web after the separation point continuing a covering over a much larger web run after the press nip, such as in particular until after a web picking by a Abdgingsaugwalze a subsequent processing stage such as a pressing stage, are maintained.
  • the rotary drive of the evacuated guide roller immediately following guide roller for basis weights of the fibrous web of 25 g / m 2 to 500 g / m 2 is designed.
  • relatively heavy fibrous webs such as board webs and packaging paper webs can be processed in the press.
  • the rotary drive of the evacuated guide roller immediately following guide roller is designed so that it has a share of a total rotary drive line of the respective press nips of a maximum of 15 percent to a maximum of 25 percent.
  • the proportion of the rotary drive of the immediately succeeding guide roller on the overall rotary drive line of the press nip is up to 25 percent, preferably up to 20 percent and more preferably up to 15 percent.
  • the rotary drive of the suctioned guide roller immediately following guide roller is torque-controlled, whereas a rotary drive is speed-controlled on the press nip.
  • the guide roller immediately following the evacuated guide roller has a wrapping angle of at least 60 degrees to at least 90 degrees with the one covering.
  • the wrap angle is ⁇ 60 degrees, preferably ⁇ 80 degrees, and more preferably ⁇ 90 degrees.
  • the guide roll immediately following the evacuated guide roll is pivotally mounted, so that by pivoting the guide roll immediately following a course of the continuous circulation the one covering is changeable.
  • a lateral surface of the guide roller immediately following the evacuated guide roller is covered with a pressure-relieving or soft cover material which has a coefficient of friction of at least 0.2 to at least 0.25.
  • the friction coefficient of the reference material is ⁇ 0.2, and preferably ⁇ 0.25.
  • the evacuated guide roll with the one covering a wrapping angle of at least 15 degrees to at least 40 degrees.
  • the wrap angle is ⁇ 15 degrees, preferably ⁇ 30 degrees, and more preferably ⁇ 40 degrees.
  • the evacuated guide roll has at least two zones, of which at least one zone is a high vacuum zone with a vacuum of at least 35 kPa to at least 50 kPa.
  • the settable vacuum of each high vacuum zone is ⁇ 35 kPa, preferably ⁇ 45 kPa, and more preferably ⁇ 50 kPa.
  • a transfer distance from the discharge point of the web-guiding clothing from the evacuated guide roller to the point of contact of this clothing with a following in the fibrous web run Abdgingsaugwalze for transferring the fibrous web of this covering to a further clothing maximum 600 mm to 1000 mm.
  • the transfer distance is ⁇ 1000 mm, preferably ⁇ 800 mm, and more preferably ⁇ 600 mm.
  • the two fabrics are guided so that they closed in the press nip retract to prevent falling of the fibrous web, if this has a basis weight> 140 g / m 2 .
  • At least one press nip of the press is designed as a shoe press nip.
  • Each shoe press nip preferably has a pressing pressure of> 1000 kN / m and preferably a shoe length of> 250 mm.
  • the fibrous web is preferably a packaging paper web or a board web having a web travel speed of ⁇ 1100 m / min, preferably ⁇ 1150 m / min and more preferably ⁇ 1200 m / min, produced in the press.
  • Fig. 1 a formed according to a first embodiment of the invention press 2 a machine 1 (not fully shown) for producing a fibrous web B described.
  • the press 2 is designed as a so-called Tadempresse with two successive pressing stages P1, P2.
  • the machine 1 in the present embodiment of the invention is a paper machine for producing a paper, board or pulp web as a fibrous web B.
  • the fibrous web B is a wrapping paper web or a board web and is produced in the press 2 with a web running speed of ⁇ 1100 m / min, preferably ⁇ 1150 m / min and more preferably ⁇ 1200 m / min in a web running direction R1 driven.
  • the press 2 In its first pressing stage P1, the press 2 has a first press nip N1, which is formed between a press roll 10 and a counter press roll 11 of the first press step P1 for dewatering passing through the fibrous web B.
  • the first pressing stage P1 of the press 2 has the pressing roller 10 and the counterpressure roller 11 which cooperate so as to form between them the first press nip N1 for dehumidifying the fibrous web B.
  • the press 2 also has in its first pressing stage P1 two band-shaped coverings 3, 4, of which a first covering 3 is designed as an underfelt or lower pressfelt and a second covering 4 is formed as an upperfelt or upper pressfelt.
  • the first fabric 3 is provided by a plurality of guide rolls 12-15 (in FIG Fig. 1 not all of the guide rollers are shown) led to endless circulation.
  • the second fabric 4 is from another plurality of guide rollers 16-21 to the endless circulation guided.
  • the two fabrics 3, 4 are guided in the first pressing stage P1 in such a way that they run together through the first press nip N1 in order to pass the fibrous web B sandwiched between them through the first press nip N1.
  • the two clothing 3, 4 are preferably guided in such a way that they retract into the first press nip N1.
  • the two fabrics 3, 4 are also performed in the first pressing stage P1, that they are separated again after the first press nip N1 at a first separation point T1 to continue the fibrous web B on the first fabric 3 and separate from the second fabric 4 ,
  • an evacuated guide roller 12 is arranged in order to hold the fibrous web B at the first separation point T1 on the first clothing 3.
  • This evacuated first guide roller 12 is formed as Saugfilzleitwalze.
  • One of the evacuated first guide roller 12 in the endless circulation of the first clothing 3 immediately following the second guide roller 13 of the guide rollers 12-15 of the first clothing 3 is provided with a rotary drive.
  • This rotary drive of the second guide roller 13 of the first clothing 3 is preferably realized with a central drive pin on the second guide roller 13.
  • a further evacuated guide roller 16 is arranged as a first of the guide rollers 16-21 of the second clothing 4, which is designed as a Abdgingsaugwalze to the fibrous web B at the inlet of a string (not labeled) of a preceding wire section (not designated) of the machine 1 to the second fabric 4 of the first pressing stage P1 of the press 2 to transfer.
  • the press 2 In its second pressing stage P2, the press 2 has a second press nip N2, which is formed between a press roll 30 and a counter press roll 31 of the second press step P2 for dewatering passing through the fibrous web B.
  • the second pressing stage P2 of the press 2 has the press roll 30 and the counterpressure roll 31, which cooperate stand so that they form between each other the second press nip N2 for dehumidifying passing the fibrous web B.
  • the press 2 also has in its second pressing stage P2 two band-shaped clothing 5, 6, of which a first clothing 5 is formed as an underfelt or lower pressfelt and a second clothing 6 is formed as an upperfelt or upper pressfelt.
  • the first fabric 5 of the second press stage P2 is supported by a plurality of guide rolls 32-35 (in FIG Fig. 1 not all of the guide rollers are shown) led to endless circulation.
  • the second fabric 6 of the second press stage P2 is supported by another plurality of guide rolls 36-40 (in FIG Fig. 1 not all of the guide rollers are shown) led to endless circulation.
  • the two fabrics 5, 6 are guided in the second pressing stage P2 so that they run together through the second press nip N2 in order to pass the fibrous web B sandwiched between them through the second press nip N2.
  • the two clothing 5, 6 of the second pressing stage P2 are guided so that they closed in the second nip N2 retract.
  • the two fabrics 5, 6 are also performed in the second pressing stage P2, that they are separated again after the second nip N2 at a second separation point T2 to continue the fibrous web B on the first fabric 5 of the second pressing stage P2 and from the second To separate string 6 of the second pressing stage P2.
  • an evacuated guide roll 32 is arranged to hold the fibrous web B at the second separation point T2 on the first fabric 5 of the second press step P2.
  • This evacuated first guide roller 32 is again formed as Saugfilzleitwalze.
  • One of the evacuated first guide roller 32 in the endless circulation of the first clothing 5 of the second pressing stage P2 immediately following second guide roller 33 of the guide rollers 32-35 of the first clothing 5 of the second pressing stage P2 is again provided with a rotary drive.
  • This rotary drive of the second guide roller 33 of the first clothing 5 of the second Pressing step P2 is again preferably realized with a central drive pin on the second guide roller 33.
  • an inlet of the second pressing stage P2 is arranged as a first of the guide rollers 36-40 of the second fabric 6 of the second pressing stage P2, another evacuated guide roll 36 which is designed as a Abdgingsaugwalze to the fibrous web B at the inlet of the second pressing stage P2 of the first fabric 3 of the previous first pressing stage P1 of the press 2 to the second fabric 6 of the second pressing stage P2 of the press 2 to convert.
  • a suctioned guide roller 50 At an outlet of the second pressing stage P2, which follows in the web running direction R1 directly to the evacuated first guide roller 32 (Saugfilzleitwalze), a suctioned guide roller 50 a subsequent processing stage of the machine 1 is arranged.
  • This evacuated guide roller 50 of the subsequent processing stage of the machine 1 is designed as a Abdgingsaugwalze to the fibrous web B at the outlet of the second pressing stage P2 of the first fabric 5 of the second press stage P2 of the press 2 on a string (not designated) of the subsequent processing stage of the machine 1 to convict.
  • Fig. 2 a formed according to a second embodiment of the invention press 2 'of a machine 1' (not fully shown) for producing a fibrous web B 'described. Also in the second embodiment of the invention, the press 2 'as Tadempresse with two consecutive pressing stages P1', P2 'is formed.
  • the machine 1 'in the present embodiment of the invention is a paper machine for producing a paper, board or pulp web as fibrous web B'.
  • the fibrous web B ' is a wrapping paper web or a board web and is in the press 2' at a web running speed of ⁇ 1100 m / min, preferably ⁇ 1150 m / min and more preferably ⁇ 1200 m / min in a web running direction R1 'driven.
  • the press 2' In its first pressing stage P1 ', the press 2' has a first press nip N1 'which is formed between a press roll 10' and a counter press roll 11 'of the first press stage P1' for the dewatering passage of the fibrous web B '.
  • the first pressing stage P1 'of the press 2' has the pressing roller 10 'and the counterpressure roller 11' which cooperate to form between them the first press nip N1 'for dehumidifying the fibrous web B'.
  • the press 2 ' has in its first pressing stage P1' also two band-shaped clothing 3 ', 4', of which a first string 3 'is formed as a lower felt or lower press felt and a second string 4' as an upper felt or upper Press felt is formed.
  • the first fabric 3 ' is provided by a plurality of guide rolls 12', 13 '(in FIG Fig. 2 not all of the guide rollers are shown) led to endless circulation.
  • the second fabric 4 ' is guided by another plurality of guide rollers 16'-22' to the endless circulation.
  • the two fabrics 3 ', 4' are guided in the first pressing stage P1 'in such a way that they run together through the first press nip N1' in order to pass the fibrous web B 'sandwiched through the first press nip N1'.
  • the two coverings 3 ', 4' are preferably guided in such a way that they retract closed into the first press nip N1 '.
  • the two clothing 3 ', 4' are also so in the first pressing stage P1 'performed that they are separated after the first press nip N1' at a separation point T1 'again to the fibrous web B' on the second fabric 4 'of the first pressing stage P1 'continue and separate from the first fabric 3' of the first pressing stage P1 '.
  • the first pressing stage P1 ' is arranged as a third of the guide rollers 16'-22' of the second string 4 'another evacuated guide roller 22', which is designed as a Abdgingsaugwalze to the fibrous web B 'at the inlet of a string ( not designated) of a preceding wire section (not designated) of the machine 1 'to the second fabric 4' of the first pressing stage P1 'of the press 2' to convert.
  • the press 2 ' has, in its second pressing stage P2', a second press nip N2 'which is formed between a press roll 30' and a counter press roll 31 'of the second press step P2' for dewatering passing the fibrous web B '.
  • the second pressing stage P2 'of the press 2' has the pressing roller 30 'and the counterpressure roller 31' which cooperate to form between them the second press nip N2 'for dehumidifying the fibrous web B'.
  • the press 2 also has, in its second pressing stage P2 ', a single band-shaped covering 5', which is designed as an underfelt or lower pressfelt.
  • the fabric 5 'of the second pressing stage P2' is of a plurality of guide rollers 32'-35 '(in Fig. 2 not all of the guide rollers are shown) led to endless circulation.
  • the fabric 5 ' is guided in the second pressing stage P2' in such a way that it passes through the second press nip N2 'in order to pass the fibrous web B' through the second press nip N2 '.
  • an evacuated guide roller 35 ' is arranged, which is designed as a Abdgingsaugwalze to the fibrous web B' at the inlet of second pressing stage P2 'of the second clothing 4' of the preceding first pressing stage P1 'of the press 2' on the fabric 5 'of the second pressing stage P2' of the press 2 'to convert.
  • the rotary drive of the respective guide rollers 13, 33; 17 ' which formed as Saugfilzwalzen guide rollers 12, 32; 16 'immediately follow, for basis weights of the fibrous web B; B 'of 25 g / m 2 to 500 g / m 2 designed.
  • the rotary drive of the respective guide rollers 13, 33; 17 ' which formed as Saugfilzwalzen guide rollers 12, 32; 16 'immediately following, designed so that it is a proportion of a total rotary drive line of the respective pressing stage P1, P2; P1 'of the press 2; 2 'has a maximum of 15 percent to a maximum of 25 percent.
  • the rotary drive of the respective guide rollers 13, 33; 17 ' which formed as Saugfilzwalzen guide rollers 12, 32; 16 'immediately follow, torque controlled, whereas a rotary drive on Nipple N1, N2; N1 'is speed controlled.
  • the respective guide rollers 13, 33; 17 ' which formed as Saugfilzwalzen guide rollers 12, 32; 16 'follow immediately, with the associated clothing 3, 5; 4 'a wrap angle of at least 60 degrees to at least 90 degrees.
  • the wrap angle is ⁇ 60 degrees, preferably ⁇ 80 degrees, and more preferably ⁇ 90 degrees.
  • the guide rollers 13, 33 which immediately follow the guide rollers 12, 32 formed as Saugfilzwalzen, each pivotally mounted, so that by pivoting the immediately following guide rollers 13, 33 a course of the endless circulation of the associated clothing 3, 5 is variable.
  • the friction coefficient of the reference material is ⁇ 0.2, and preferably ⁇ 0.25.
  • the guide rollers 12, 32 formed as suction felt rollers; 16 'with the associated clothing 3, 5; 4 'each have a wrap angle of at least 15 degrees to at least 40 degrees.
  • the wrap angle is ⁇ 15 degrees, preferably ⁇ 30 degrees, and more preferably ⁇ 40 degrees.
  • the guide rollers 12, 32 formed as suction felt rollers; 16 'each have at least two zones, of which at least one zone is a high vacuum zone with a vacuum of at least 35 kPa to at least 50 kPa.
  • the settable vacuum of each high vacuum zone is ⁇ 35 kPa, preferably ⁇ 45 kPa, and more preferably ⁇ 50 kPa.
  • a respective transfer distance from the discharge point of the respective, web-guiding clothing from the guide rollers 12, 32 formed as Saugfilzwalzen is; 16 'until contact with the fibrous web or in the web running direction R1; R1 'subsequent as a Saugesaugwalze trained guide roller 36, 50; 35 'for transferring the fibrous web B; B 'of the guide rollers 12, 32 formed as Saugfilzwalzen; 16 'associated clothing 3, 5; 4 'on the respective following string 6; 5 'of the machine 1; 1 'maximum 600 mm to a maximum of 1000 mm.
  • the transfer distance is ⁇ 1000 mm, preferably ⁇ 800 mm, and more preferably ⁇ 600 mm.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Treatment Of Fiber Materials (AREA)

Claims (10)

  1. Presse (2 ; 2') pour une machine (1 ; 1') de fabrication d'une bande de matière fibreuse (B ; B'), comprenant :
    au moins une ligne de pressage (N1, N2 ; N1'), laquelle est formée entre un rouleau de pressage (10, 30 ; 10') et un contre-rouleau de pressage (11, 31 ; 11') de la presse (2 ; 2') pour le passage déshumidificateur de la bande de matière fibreuse (B ; B'), et
    deux entoilages en forme de bande (3, 4, 5, 6 ; 3', 4'), lesquels sont guidés respectivement par une pluralité de rouleaux de guidage (12-15, 16-21, 32-35, 36-40 ; 12'-13', 16'-22') pour une circulation sans fin, de sorte qu'ils traversent ensemble la ligne de pressage (N1, N2 ; N1'), afin de passer la bande de matière fibreuse (B ; B') prise en sandwich entre ceux-ci à travers la ligne de pressage (N1, N2 ; N1'), et sont écartés sur un point de séparation (T1, T2 ; T1') après la ligne de pressage (N1, N2 ; N1'), afin de faire poursuivre la bande de matière fibreuse (B ; B') sur un des entoilages (3, 5, 4') et de la séparer des autres entoilages (4, 6 ; 3'),
    dans laquelle un rouleau de guidage, de la pluralité de rouleaux de guidage, agencé sur le point de séparation (T1, T2 ; T1'), est un rouleau de guidage aspirant (12, 32 ; 16') de l'un des entoilages (3, 5, 4'), afin de maintenir la bande de matière fibreuse (B ; B') au point de séparation (T1, T2 ; T1') sur un des entoilages (3, 5, 4'), et
    dans laquelle un des rouleaux de guidage aspirants (12, 32 ; 16') est doté d'un entraînement rotatif dans la circulation sans fin du rouleau de guidage (13, 33 ; 17') suivant directement l'un des entoilages (3, 5, 4') issu de la pluralité des rouleaux de guidage de l'un des entoilages (3, 5, 4'),
    caractérisée en ce que le rouleau de guidage aspirant (12, 32 ; 16') ne possède pas de moteur et pas d'entraînement rotatif.
  2. Presse (2 ; 2') selon la revendication 1, dans laquelle l'entraînement rotatif du rouleau de guidage directement consécutif (13, 33 ; 17') est disposé pour un grammage de la bande de matière fibreuse (B ; B') de 25 g/m2 à 500 g/m2.
  3. Presse (2 ; 2') selon la revendication 1 ou 2, dans laquelle l'entraînement rotatif du rouleau de guidage directement consécutif (13, 33 ; 17') est disposé de telle sorte qu'il représente une fraction d'une puissance totale d'entraînement rotatif de la ligne de pressage (N1, N2, N1') respective de 15 % au maximum à 25 % au maximum.
  4. Presse (2 ; 2') selon l'une des revendications 1 à 3, dans laquelle l'entraînement rotatif du rouleau de guidage directement consécutif (13, 33 ; 17') possède un couple commandable, tandis qu'un entraînement rotatif sur la ligne de pressage (N1, N2 ; N1') possède une vitesse de rotation commandable.
  5. Presse (2) selon l'une des revendications 1 à 4, dans laquelle le rouleau de guidage directement consécutif (13, 33 ; 17') possède un angle d'enveloppement avec l'un des entoilages (3, 5, 4') de 60° au minimum à 90° au minimum.
  6. Presse (2 ; 2') selon l'une des revendications 1 à 5, dans laquelle le rouleau de guidage directement consécutif (13, 33) est disposé de manière pivotante, de sorte qu'une voie de parcours de la circulation sans fin de l'un des entoilages (3, 5) est modifiable par pivotement du rouleau de guidage directement consécutif (13, 33).
  7. Presse (2 ; 2') selon l'une des revendications 1 à 6, dans laquelle une surface enveloppante du rouleau de guidage directement consécutif (13, 33 ; 17') est couverte d'un matériau élastique à la pression, lequel possède un coefficient de friction d'au moins 0,2 à au moins 0,25.
  8. Presse (2 ; 2') selon l'une des revendications 1 à 7, dans laquelle le rouleau de guidage aspirant (12, 32 ; 16') possède un angle d'enveloppement avec l'un des entoilages (3, 5, 4') de 15° au minimum à 40° au minimum.
  9. Presse (2 ; 2') selon l'une des revendications 1 à 8, dans laquelle le rouleau de guidage aspirant (12, 32 ; 16') comporte au moins deux zones, parmi lesquelles au moins une zone est une zone de vide poussé possédant un vide de 35 kPa au minimum à 50 kPa au minimum.
  10. Presse (2 ; 2') selon l'une des revendications 1 à 9, dans laquelle un trajet de transfert depuis le rouleau de guidage aspirant (12, 32 ; 16') jusqu'à un rouleau extracteur consécutif dans le parcours de la bande de matière fibreuse, pour transporter la bande de matière fibreuse d'un des entoilages (3, 5, 4') à un autre entoilage (6 ; 5'), est de 600 mm au maximum à 1000 mm au maximum.
EP16816643.7A 2016-01-29 2016-12-14 Presse pour une machine de fabrication d'une bande de matière fibreuse Active EP3408444B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016201338.6A DE102016201338A1 (de) 2016-01-29 2016-01-29 Presse
PCT/EP2016/080968 WO2017129309A1 (fr) 2016-01-29 2016-12-14 Presse pour une machine de fabrication d'une bande de matière fibreuse

Publications (2)

Publication Number Publication Date
EP3408444A1 EP3408444A1 (fr) 2018-12-05
EP3408444B1 true EP3408444B1 (fr) 2019-12-04

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Application Number Title Priority Date Filing Date
EP16816643.7A Active EP3408444B1 (fr) 2016-01-29 2016-12-14 Presse pour une machine de fabrication d'une bande de matière fibreuse

Country Status (5)

Country Link
US (1) US10612192B2 (fr)
EP (1) EP3408444B1 (fr)
CN (1) CN108699770B (fr)
DE (1) DE102016201338A1 (fr)
WO (1) WO2017129309A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT527799A1 (de) * 2023-12-07 2025-06-15 Valmet Technologies Oy Presseneinheit und pressenpartie einer faserbahnmaschine

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DE10102535A1 (de) 2001-01-19 2002-07-25 Voith Paper Patent Gmbh Presse
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DE10226825A1 (de) * 2002-06-15 2003-12-24 Voith Paper Patent Gmbh Pressanordnung
DE10231074A1 (de) * 2002-07-10 2004-01-22 Voith Paper Patent Gmbh Pressanordnung
FI116400B (fi) * 2002-11-19 2005-11-15 Metso Paper Inc Paperi- tai kartonkikoneen puristinosa
FI114647B (fi) * 2003-07-02 2004-11-30 Metso Paper Inc Sovitelma rainan hallitsemiseksi paperi- tai kartonkikoneen puristinosalla
DE102011082161A1 (de) * 2011-09-06 2013-03-07 Voith Patent Gmbh Pressenpartie einer Maschine zur Herstellung einer Faserstoffbahn
CN203700859U (zh) * 2012-08-21 2014-07-09 沃依特专利有限责任公司 用于制造纤维幅的机器的压榨部

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WO2017129309A1 (fr) 2017-08-03
EP3408444A1 (fr) 2018-12-05
US20180371693A1 (en) 2018-12-27
US10612192B2 (en) 2020-04-07
CN108699770A (zh) 2018-10-23
DE102016201338A1 (de) 2017-08-03

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