EP0176610B1 - Walze für Maschinen der Papierindustrie oder dergleichen - Google Patents

Walze für Maschinen der Papierindustrie oder dergleichen Download PDF

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Publication number
EP0176610B1
EP0176610B1 EP84111680A EP84111680A EP0176610B1 EP 0176610 B1 EP0176610 B1 EP 0176610B1 EP 84111680 A EP84111680 A EP 84111680A EP 84111680 A EP84111680 A EP 84111680A EP 0176610 B1 EP0176610 B1 EP 0176610B1
Authority
EP
European Patent Office
Prior art keywords
corrugated
band sections
roller
straight
circumferential direction
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
Application number
EP84111680A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0176610A1 (de
Inventor
Emil Holz
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 Finckh Fiber Systems GmbH and Co KG
Original Assignee
Hermann Finckh Maschinenfabrik GmbH and Co
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 Hermann Finckh Maschinenfabrik GmbH and Co filed Critical Hermann Finckh Maschinenfabrik GmbH and Co
Priority to DE8484111680T priority Critical patent/DE3473312D1/de
Priority to EP84111680A priority patent/EP0176610B1/de
Priority to AT84111680T priority patent/ATE36363T1/de
Priority to US06/773,361 priority patent/US4619737A/en
Priority to CA000491354A priority patent/CA1251081A/en
Priority to JP60212708A priority patent/JPS6184411A/ja
Publication of EP0176610A1 publication Critical patent/EP0176610A1/de
Application granted granted Critical
Publication of EP0176610B1 publication Critical patent/EP0176610B1/de
Expired 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
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/60—Cylinder moulds
    • 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
    • D21F1/44—Watermarking devices
    • D21F1/46—Dandy rolls

Definitions

  • the invention relates to a roller for machines in the paper industry or the like, in particular a sheet forming roller such.
  • a roller for machines in the paper industry or the like in particular a sheet forming roller such.
  • B. a cylinder, a forming roll or a Aufgautschwalze, with a support tube on which several, at least approximately in the circumferential direction and in the radial direction upright tapes are fastened, straight and corrugated band sections follow one another in the axial direction and the straight band sections at connection points through the corrugated belt sections are connected to each other, and with a covering fabric forming the roll circumference, between which and the belts at their connection points a passage in the circumferential direction allowing passages are provided.
  • Such a roller, but without a support tube, is known from DE-B-21 48 361.
  • the invention was therefore based on the object to improve the known roller so that when storing the covering fabric directly at least on the corrugated belt sections, i.e. without the known underlay fabric, to avoid disadvantageous water accumulation in the angles between corrugated and straight belt sections, which is can be achieved according to the invention by providing the corrugated band sections approximately in the middle between the connection points on their radially outer edge with additional recesses.
  • the additional recesses in the corrugated belt sections do not only allow an additional flow in the circumferential direction between the covering fabric and the belt sections supporting it, but they reduce the total support area for the covering fabric and, like the omission of the underlay fabric, contribute to enlarging the free passage area of the roller circumference, without thereby affecting the quality of the support of the covering fabric.
  • the covering fabric is also subject to a lower risk of contamination, and finally the roller has a better concentricity than the known roller described, owing to the lack of a base fabric.
  • the corrugated band sections protrude the straight band sections in the radial direction, so that passages are left at the junctures between the corrugated band sections and the cover fabric, which allow a flow in the circumferential direction.
  • the straight belts can be made thicker, since this does not increase the effective support surface for the covering fabric and consequently does not reduce the free passage area of the roll circumference. Thicker straight band sections also lead to wider passages for circumferential flow.
  • the corrugated and the straight belt sections are arranged in such a way that they have the same outside diameter, the corrugated and / or the straight belt sections being provided with recesses at their connection points on their radially outer edge in order to to create passages for the connection points which allow a flow in the circumferential direction.
  • the straight bands form closed rings which are shrunk onto the support tube. It is then advisable to arrange the corrugated strips at a radial distance from the support tube so that the straight strip sections protrude inward over the corrugated strip sections and rest on the support tube, with the aim of bringing about pressure compensation. between the individual ring channels lying between the straight bands, the straight band sections are provided with recesses on their radially inner edge.
  • FIGS. 1 to 4 show a roller 10 with a circular cylindrical support tube 12, preferably made of stainless steel, on the ends of which end rings 14 are fastened. Furthermore, the support tube 12 holds annular straight strips 18 which are arranged at an axial distance from one another and are shrunk onto the support tube and between which annular corrugated strips 18 are welded. In the embodiment according to FIGS. 1 to 4, the corrugated strips 18 protrude beyond the straight strips 16, and their radially outer edges are aligned with one another and with the outer circumferential surface of the end rings 14. On the other hand, the corrugated strips 18 end at a radial distance from the support tube 12. to which the tapes 16 and 18 are attached to each other have been designated 20. A covering fabric 22 lies directly on the radially outer edges of the corrugated bands 18 and on the end rings 14 and forms a self-contained circular cylinder.
  • passages 26 are formed directly within the covering fabric 22 between the latter and the edges 16a of the straight strips and between the corrugated strips 18, which allow a flow in the circumferential direction. These passages have a particularly advantageous effect when adjacent corrugated bands are offset from one another in the circumferential direction by half a wavelength, as is the case with the corrugated bands 18 'of the embodiment shown in FIG. 5.
  • the free passage area of the covering fabric 22, which has already been increased by the resetting of the straight strips 16, can be further increased by means of central recesses 18b in the region of the radially outer edges 18a of the corrugated strips 18 and 18 ', which means that between the covering fabric 22 and The passages supporting this are produced further passages which allow a flow in the circumferential direction of the roller, as was represented by arrows A in FIGS. 2 and 5.
  • these recesses 18b further reduce the risk of water accumulation on the radially outer edges of the belts supporting the covering fabric, which can impair the sheet formation process during paper production.
  • the straight belts 16 are provided with openings 16c, which in particular adjoin the support tube 12 and serve the following purpose: Since the support tube 12 forms a roller body which is closed on its circumference and onto which the honeycomb structure carrying the cover fabric 22 is shrunk, pressure compensation is necessary between the ring channels lying between the straight belts 16 - if the fiber suspension flows towards the outside in the radial direction during the sheet formation, air must be able to escape from the ring channels mentioned in the circumferential direction of the roller; without the openings 16c, pressure differences could form between the ring channels, which would prevent uniform sheet formation.
  • the third embodiment according to FIGS. 6 to 8 differs from the embodiment according to FIGS. 1 to 4 only in that the radially outer edges of the straight bands 16 "are aligned with the radially outer edges of the corrugated bands 18" and the outer peripheral surface of the end rings 14 and that in place of the passages 26, recesses 18c have been provided in the corrugated bands 18 "in the region of the connection points 20.
  • the embodiment according to FIGS. 6 to 8 is particularly suitable for rollers in which the cover fabric is exposed to a high pressure load.
  • roller according to DE-AS 21 48 361 they could open in the axial direction consecutive straight and corrugated band sections but also each formed by one or more straight or corrugated band, which extends helically around the support tube 12.

Landscapes

  • Paper (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
EP84111680A 1984-09-29 1984-09-29 Walze für Maschinen der Papierindustrie oder dergleichen Expired EP0176610B1 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE8484111680T DE3473312D1 (en) 1984-09-29 1984-09-29 Roll for machines for the paper industry or the like
EP84111680A EP0176610B1 (de) 1984-09-29 1984-09-29 Walze für Maschinen der Papierindustrie oder dergleichen
AT84111680T ATE36363T1 (de) 1984-09-29 1984-09-29 Walze fuer maschinen der papierindustrie oder dergleichen.
US06/773,361 US4619737A (en) 1984-09-29 1985-09-06 Roller for machines in the paper-making industry
CA000491354A CA1251081A (en) 1984-09-29 1985-09-23 Roller for machines in the paper-making industry or similar
JP60212708A JPS6184411A (ja) 1984-09-29 1985-09-27 製紙工業等の機械用ローラ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP84111680A EP0176610B1 (de) 1984-09-29 1984-09-29 Walze für Maschinen der Papierindustrie oder dergleichen

Publications (2)

Publication Number Publication Date
EP0176610A1 EP0176610A1 (de) 1986-04-09
EP0176610B1 true EP0176610B1 (de) 1988-08-10

Family

ID=8192188

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84111680A Expired EP0176610B1 (de) 1984-09-29 1984-09-29 Walze für Maschinen der Papierindustrie oder dergleichen

Country Status (6)

Country Link
US (1) US4619737A (enrdf_load_stackoverflow)
EP (1) EP0176610B1 (enrdf_load_stackoverflow)
JP (1) JPS6184411A (enrdf_load_stackoverflow)
AT (1) ATE36363T1 (enrdf_load_stackoverflow)
CA (1) CA1251081A (enrdf_load_stackoverflow)
DE (1) DE3473312D1 (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0462434A1 (de) * 1990-06-13 1991-12-27 Hermann Finckh Maschinenfabrik GmbH & Co. Walze für Papiermaschinen
EP0688900A1 (en) 1994-06-17 1995-12-27 Valmet Paper Machinery Inc. Inlet into the twin-wire zone of a hybrid former for a paper machine

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0674927B2 (ja) * 1985-04-08 1994-09-21 大阪瓦斯株式会社 天井吊下げ型遠赤外線暖房器
JP2583042B2 (ja) * 1986-12-27 1997-02-19 日立マクセル株式会社 カレンダ−処理用弾性ロ−ル
US4957630A (en) * 1988-12-27 1990-09-18 Bratten Jack R Drum filter with divergent hole perforated filter media
JP3160397B2 (ja) * 1991-11-08 2001-04-25 ヨット・エム・フォイト・ゲーエムベーハー 別体をなす外皮及びロールコアを有するロール
US5480545A (en) * 1994-08-03 1996-01-02 Ingersoll-Rand Company Cross braced vacuum washer
US6105788A (en) * 1997-11-12 2000-08-22 Thermo Black Clawson Inc. Composite screen
DE10106731A1 (de) * 2001-02-14 2002-08-22 Voith Paper Patent Gmbh Doppelsiebformer zur Herstellung einer Faserstoffbahn aus einer Faserstoffsuspension
SE532437C2 (sv) * 2007-09-19 2010-01-19 Andritz Oy Avvattningstrumma för avvattning av cellulosamassa
CN102119248A (zh) * 2008-08-11 2011-07-06 沃依特专利有限责任公司 用于分馏纤维悬浮液的装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2240869A (en) * 1939-04-17 1941-05-06 Encor Corp Wire faced roll for papermaking machines
US3564686A (en) * 1968-03-01 1971-02-23 Metal Tech Inc Helical pattern,bent node honeycomb roll
US3590453A (en) * 1968-06-19 1971-07-06 Metal Tech Inc Honeycomb roll
AR195292A1 (es) * 1971-09-28 1973-09-28 Finckh Metalltuch Maschf Cilindro especialmente para maquinarias para la industria papelera
DE2646116C3 (de) * 1976-10-13 1979-10-18 Hermann Finckh, Maschinenfabrik, 7417 Pfullingen Saugwalze für Papiermaschinen
US4050131A (en) * 1976-12-06 1977-09-27 Honeycomb Systems, Inc. Roll with inner and outer, spaced axially extending triangular mesh strips
US4297794A (en) * 1977-08-02 1981-11-03 Ingersoll-Rand Company Paper sheet dryer
DE3210320C2 (de) * 1982-03-20 1986-02-06 J.M. Voith Gmbh, 7920 Heidenheim Saugwalze für Papiermaschinen
DE3227189A1 (de) * 1982-07-21 1984-01-26 Hermann Finckh Maschinenfabrik GmbH & Co., 7417 Pfullingen Egoutteureinrichtung zum entwaessern einer faserstoffbahn auf einer langsiebmaschine
DE3227188A1 (de) * 1982-07-21 1984-01-26 Hermann Finckh Maschinenfabrik GmbH & Co., 7417 Pfullingen Rundsiebmaschine, insbesondere zur pappe- und papierherstellung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0462434A1 (de) * 1990-06-13 1991-12-27 Hermann Finckh Maschinenfabrik GmbH & Co. Walze für Papiermaschinen
EP0688900A1 (en) 1994-06-17 1995-12-27 Valmet Paper Machinery Inc. Inlet into the twin-wire zone of a hybrid former for a paper machine

Also Published As

Publication number Publication date
JPH034675B2 (enrdf_load_stackoverflow) 1991-01-23
DE3473312D1 (en) 1988-09-15
ATE36363T1 (de) 1988-08-15
US4619737A (en) 1986-10-28
CA1251081A (en) 1989-03-14
JPS6184411A (ja) 1986-04-30
EP0176610A1 (de) 1986-04-09

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