EP0882837B1 - Courroie de pressage - Google Patents

Courroie de pressage Download PDF

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Publication number
EP0882837B1
EP0882837B1 EP98107091A EP98107091A EP0882837B1 EP 0882837 B1 EP0882837 B1 EP 0882837B1 EP 98107091 A EP98107091 A EP 98107091A EP 98107091 A EP98107091 A EP 98107091A EP 0882837 B1 EP0882837 B1 EP 0882837B1
Authority
EP
European Patent Office
Prior art keywords
press cover
reinforcing filaments
grooves
cover according
press
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 - Lifetime
Application number
EP98107091A
Other languages
German (de)
English (en)
Other versions
EP0882837A2 (fr
EP0882837A3 (fr
Inventor
Uwe Matuschczyk
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 Paper 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 Paper Patent GmbH filed Critical Voith Paper Patent GmbH
Publication of EP0882837A2 publication Critical patent/EP0882837A2/fr
Publication of EP0882837A3 publication Critical patent/EP0882837A3/fr
Application granted granted Critical
Publication of EP0882837B1 publication Critical patent/EP0882837B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • D21F3/0209—Wet presses with extended press nip
    • D21F3/0218—Shoe presses
    • D21F3/0227—Belts or sleeves therefor
    • 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
    • D21F3/0209—Wet presses with extended press nip
    • D21F3/0218—Shoe presses
    • D21F3/0227—Belts or sleeves therefor
    • D21F3/0236—Belts or sleeves therefor manufacturing methods
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S162/00—Paper making and fiber liberation
    • Y10S162/901—Impermeable belts for extended nip press
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1007—Running or continuous length work
    • Y10T156/1023—Surface deformation only [e.g., embossing]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24521—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness with component conforming to contour of nonplanar surface
    • Y10T428/24537—Parallel ribs and/or grooves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/2457—Parallel ribs and/or grooves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/2457—Parallel ribs and/or grooves
    • Y10T428/24587—Oblique to longitudinal axis of web or sheet

Definitions

  • the present invention relates to a press jacket made of flexible material for a Pressing device for dewatering a material web in a press nip, especially for shoe presses for paper production, with essentially in Circumferential grooves in at least one surface of the Press jacket and reinforcing threads embedded in the jacket material, of which at least a part essentially in the circumferential direction of the press jacket extends.
  • Press sleeves with circumferential grooves in the outside of the press sleeve are already known.
  • the contact grooves serve to absorb water and improve it Drying properties of the press jacket in a dry press.
  • Through the Circumferential grooves however, increase the risk of cracks forming in the press jacket because the jacket material in the area of the grooves is weakened. To make matters worse, that cracks can spread and enlarge along the grooves.
  • reinforcing threads in the jacket material is for example from the DE-A-4438354 and WO-A-92/02677 are known.
  • the reinforcing threads serve to increase the tensile strength of the press casing, since this is particularly the case with Shoe presses are subjected to very high tensile forces, which lead to a break of the Press sleeve can lead.
  • Reinforcing threads can also run in the axial direction of the press jacket Reinforcing threads are provided.
  • the invention has for its object a press jacket of the aforementioned Specify type that is characterized by great durability and strength. In particular, the risk of cracking should be reduced.
  • This object is achieved in that the distribution of the grooves over the surface of the press jacket depending on the distribution of the in Circumferential reinforcing threads is chosen such that the grooves and the reinforcing threads not even in sections both radially one above the other as well as going in the same direction.
  • the grooves on the one hand and the reinforcing threads on the other hand with each other different angles of inclination to the circumferential direction introduced into the press jacket Due to the different angles of inclination the circumferential grooves and the reinforcing threads it is guaranteed that not even in sections circumferential grooves and reinforcing threads radially in the press jacket on top of each other and in the same direction, so a double weakening of the press jacket material occurs.
  • circumferential grooves and reinforcing threads can be used also introduced with the same inclination in the press jacket if care is taken to ensure that the circumferential grooves and the reinforcing threads are axially offset from one another. Due to different angles of inclination Risk of cracking is further reduced because the assignment between the circumferential grooves and the reinforcing threads in the direction the press jacket axis varies.
  • the grooves with a larger angle of inclination are preferred introduced into the press jacket as the reinforcing threads.
  • the grooves with an angle of inclination introduced which is at least three times the size of the Reinforcement thread angle of inclination. This configuration has been designed for both preventing cracking as well for the strength of the press jacket as particularly advantageous exposed.
  • the grooves are spaced apart introduced into the press jacket from each other, the at least is approximately 1.15 times the distance between the reinforcing threads from each other. This configuration has changed turned out to be particularly advantageous.
  • the circumferential grooves can be closed as annular grooves be introduced into the press jacket.
  • Another one Embodiment of the invention can the circumferential grooves but also in the form of a around the longitudinal axis of the press jacket running screw line introduced into the press jacket become.
  • the reinforcement threads can be closed as a ring Reinforcing threads and as around the longitudinal axis of the Press jacket extending screw line in the press jacket be introduced.
  • the reinforcement threads can be closed as a ring Reinforcing threads and as around the longitudinal axis of the Press jacket extending screw line in the press jacket be introduced.
  • the reinforcement threads can be closed as a ring Reinforcing threads and as around the longitudinal axis of the Press jacket extending screw line in the press jacket be introduced.
  • a single reinforcement thread helical be introduced.
  • two or more reinforcement threads helically in the Press jacket are introduced.
  • the reinforcing threads thereby in the form of a multiple screw line brought in.
  • Distribution of the reinforcing threads in the one above the other radial layers of the press shell selected so that reinforcement threads also not in sections in the press jacket run radially one above the other and in the same direction. This configuration in turn ensures that the press jacket has no multiply weakened sections, in which the risk of cracking is particularly high.
  • the reinforcing threads running in the circumferential direction also extending in the axial direction of the press jacket Reinforcing threads introduced into the press jacket material.
  • the axis threads preferably run radially inner layer of the press jacket than that Circumferential fibers. Basically, the circumferential threads can also be introduced radially further inside.
  • circumferential grooves 1 are in a conventional press jacket a plurality of circumferential grooves 1 over the press jacket 2nd distributed.
  • the circumferential grooves 1 can be annular Endless grooves or as helical around the longitudinal axis the press jacket 2 arranged grooves formed his.
  • the reinforcing threads running in the circumferential direction are not radially below the circumferential grooves 1.
  • the circumferential direction 6 of the press jacket 2 is inclined in opposite directions. That is, the circumferential grooves 1 form an angle ⁇ R with the circumferential direction 6, which has the opposite sign to the angle ⁇ UF , which the reinforcing threads 4 form with the circumferential direction 6.
  • the amount of the angle ⁇ R is also greater than the amount of the angle ⁇ UF .
  • the circumferential grooves 1 thus run at a greater angle of inclination to the circumferential direction 6 than the reinforcing threads 4.
  • the opposite sign of the respective inclination angles ⁇ R and ⁇ UF ensures that the press jacket 2 has no cross-sectional planes in which the circumferential grooves 1 and the reinforcing threads 4 also run radially one above the other only in sections in the same orientation. A double weakening of the press jacket 2 is thereby avoided.
  • the circumferential grooves 1 and the reinforcing threads 4 run with the same inclination to the circumferential direction 6.
  • the angle of inclination ⁇ R of the circumferential grooves 1 is namely larger, in particular chosen at least three times as large as the angle of inclination ⁇ UF of the reinforcing threads 4. This also ensures that the press jacket 2 does not have any cross-sectional planes in which the circumferential grooves 1 and the reinforcing threads 4 also only run in sections in the same direction. In this variant, too, there are therefore no doubly weakened sections of the press jacket 2.
  • circumferential grooves 1 and the reinforcing threads 4 can also do so axially offset from one another over the circumference of the press casing 2 distributed that no cross-sectional planes of the press casing are present, in which circumferential grooves 1 and reinforcing threads 4 only in sections run in the same direction. Rather are in the cross-sectional levels either only circumferential grooves 1 or only reinforcing threads 4 available.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Paper (AREA)

Claims (21)

  1. Courroie de pressage en matériau souple pour un dispositif de pressage en vue de l'égouttage d'une bande de matériau dans une ligne de contact, en particulier des presses à sabot pour la fabrication du papier, comprenant des gorges (1) s'étendant essentiellement dans la direction périphérique (6) dans au moins une surface de la courroie de pressage (2) et des fils de renforcement (4, 5) noyés dans le matériau de la courroie, dont au moins une partie (4) s'étend essentiellement dans la direction périphérique (6) de la courroie de pressage (2), caractérisée en ce que la répartition des gorges (1) sur la surface de la courroie de pressage (2) est sélectionnée en fonction de la répartition des fils de renforcement (4) s'étendant dans la direction périphérique (6) de telle sorte que les gorges (1) et les fils de renforcement (4) ne s'étendent même pas par section à la fois radialement les uns sur les autres et dans la même direction.
  2. Courroie de pressage selon la revendication 1, caractérisée en ce que les gorges (1) d'une part et les fils de renforcement (4) d'autre part présentent des angles d'inclinaison (αR, αUF) différents les uns des autres par rapport à la direction périphérique (6) de la courroie de pressage (2).
  3. Courroie de pressage selon la revendication 2, caractérisée en ce que les gorges (1) présentent un angle d'inclinaison (αR) plus important que l'angle d'inclinaison (αUF) des fils de renforcement (4).
  4. Courroie de pressage selon la revendication 3, caractérisée en ce que les gorges (1) présentent un angle d'inclinaison (αR) qui est au moins trois fois plus grand que l'angle d'inclinaison (αUF) des fils de renforcement (4).
  5. Courroie de pressage selon l'une quelconque des revendications 2 à 4, caractérisée en ce que l'angle d'inclinaison (αR) des gorges (1) présente un signe inverse de l'angle d'inclinaison (αUF) des fils de renforcement (4).
  6. Courroie de pressage selon l'une quelconque des revendications 1 à 5, caractérisée en ce que les gorges (1) présentent une distance axiale (dR) les unes des autres, qui diffère de la distance axiale (dUF) que présentent les fils de renforcement (4) les uns des autres.
  7. Courroie de pressage selon la revendication 6, caractérisée en ce que les distances (dR, dUF) des gorges (1) d'une part et des fils de renforcement (4) d'autre part ne présentent pas de multiple entier commun.
  8. Courroie de pressage selon la revendication 6 ou 7, caractérisée en ce que la distance (dR) des gorges (1) les unes des autres est supérieure à la distance (dUF) des fils de renforcement (4) les uns des autres.
  9. Courroie de pressage selon la revendication 8, caractérisée en ce que la distance (dR) des gorges (1) est au moins 1,15 fois plus grande que la distance (dUF) des fils de renforcement (4).
  10. Courroie de pressage selon l'une quelconque des revendications 1 à 9, caractérisée en ce que les gorges (1) sont fermées en forme d'anneau autour de la périphérie de la courroie de pressage (2).
  11. Courroie de pressage selon l'une quelconque des revendications 1 à 9, caractérisée en ce que les gorges (1) forment une hélice s'étendant autour de l'axe longitudinal de la courroie de pressage (2).
  12. Courroie de pressage selon l'une quelconque des revendications 1 à 11, caractérisée en ce que les fils de renforcement (4) sont fermés en forme d'anneau.
  13. Courroie de pressage selon l'une quelconque des revendications 1 à 11, caractérisée en ce que les fils de renforcement (4) forment une hélice autour de l'axe longitudinal de la courroie de pressage (2) .
  14. Courroie de pressage selon la revendication 13, caractérisée en ce qu'il est prévu un fil de renforcement (4) unique de forme hélicoïdale.
  15. Courroie de pressage selon la revendication 13, caractérisée en ce qu'il est prévu deux fils de renforcement (4) ou plus, de forme hélicoïdale.
  16. Courroie de pressage selon la revendication 15, caractérisée en ce que les fils de renforcement (4) forment une hélice multiple.
  17. Courroie de pressage selon l'une quelconque des revendications 1 à 16, caractérisée en ce que plusieurs fils de renforcement (4) sont prévus dans des couches superposées radialement de la courroie de pressage (2).
  18. Courroie de pressage selon la revendication 17, caractérisée en ce que la répartition des fils de renforcement (4) dans les couches radiales superposées de la courroie de pressage (2) est sélectionnée de telle sorte que des fils de renforcement (4) ne s'étendent pas non plus par section radialement les uns sur les autres et dans la même direction.
  19. Courroie de pressage selon l'une quelconque des revendications 1 à 18, caractérisée en ce qu'en plus des fils de renforcement (4) s'étendant dans la direction périphérique (6), on prévoit également des fils de renforcement (5) s'étendant dans la direction axiale (3) de la courroie de pressage (2).
  20. Courroie de pressage selon la revendication 19, caractérisée en ce que les fils de renforcement (5) s'étendant dans la direction axiale (3) sont disposés radialement plus à l'intérieur que les fils de renforcement (4) s'étendant dans la direction périphérique (6) .
  21. Courroie de pressage selon la revendication 19, caractérisée en ce que les fils de renforcement (5) s'étendant dans la direction axiale (3) sont disposés radialement plus à l'extérieur que les fils de renforcement (4) s'étendant dans la direction périphérique (6).
EP98107091A 1997-06-03 1998-04-18 Courroie de pressage Expired - Lifetime EP0882837B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19723211 1997-06-03
DE19723211A DE19723211A1 (de) 1997-06-03 1997-06-03 Verfahren zur Herstellung eines Preßmantels und nach diesem Verfahren hergestellter Preßmantel

Publications (3)

Publication Number Publication Date
EP0882837A2 EP0882837A2 (fr) 1998-12-09
EP0882837A3 EP0882837A3 (fr) 1999-02-10
EP0882837B1 true EP0882837B1 (fr) 2002-09-18

Family

ID=7831252

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98107091A Expired - Lifetime EP0882837B1 (fr) 1997-06-03 1998-04-18 Courroie de pressage

Country Status (4)

Country Link
US (1) US6149771A (fr)
EP (1) EP0882837B1 (fr)
JP (1) JP4250221B2 (fr)
DE (2) DE19723211A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10156146A1 (de) 2001-11-15 2003-05-28 Voith Paper Patent Gmbh Walzenmantel

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4229254A (en) * 1979-04-26 1980-10-21 Beloit Corporation Extended nip press with bias ply reinforced belt
AU575216B2 (en) * 1985-10-03 1988-07-21 Beloit Corporation A bearing blanket for an extended nip press
GB8818992D0 (en) * 1988-08-10 1988-09-14 Scapa Group Plc Improvements relating to extended nip dewatering presses
GB9016619D0 (en) * 1990-07-28 1990-09-12 Scapa Group Plc Endless belts for extended nip dewatering presses
US5208087A (en) * 1991-10-08 1993-05-04 Albany International Corp. Spiral construction for a long nip press belt
US5171389A (en) * 1991-11-08 1992-12-15 Albany International Corp. Spiral construction of grooved long nip press
DE9201143U1 (de) * 1992-01-31 1992-03-26 J.M. Voith Gmbh, 7920 Heidenheim Preßmantel für eine Schuhpresse
US5543015A (en) * 1994-10-18 1996-08-06 Tamfelt Corp. Groove configuration for a press belt in an extended nip press
DE4438354A1 (de) * 1994-10-27 1996-05-02 Voith Sulzer Papiermasch Gmbh Preßmantel und Verfahren zur Herstellung eines Preßmantels
DE4443598C2 (de) * 1994-12-07 2000-05-25 Voith Sulzer Papiermasch Gmbh Verfahren zur Herstellung eines Preßmantels
DE29621524U1 (de) * 1996-03-08 1997-02-27 Voith Sulzer Papiermaschinen GmbH, 89522 Heidenheim Pressmantel für eine Pressvorrichtung

Also Published As

Publication number Publication date
DE59805574D1 (de) 2002-10-24
EP0882837A2 (fr) 1998-12-09
DE19723211A1 (de) 1998-12-10
EP0882837A3 (fr) 1999-02-10
US6149771A (en) 2000-11-21
JPH10331089A (ja) 1998-12-15
JP4250221B2 (ja) 2009-04-08

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