EP1006236B1 - Rouleau chauffé pour calandre - Google Patents

Rouleau chauffé pour calandre Download PDF

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Publication number
EP1006236B1
EP1006236B1 EP19990122637 EP99122637A EP1006236B1 EP 1006236 B1 EP1006236 B1 EP 1006236B1 EP 19990122637 EP19990122637 EP 19990122637 EP 99122637 A EP99122637 A EP 99122637A EP 1006236 B1 EP1006236 B1 EP 1006236B1
Authority
EP
European Patent Office
Prior art keywords
displacement member
roller according
calender roller
calender
plastic
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
EP19990122637
Other languages
German (de)
English (en)
Other versions
EP1006236A3 (fr
EP1006236A2 (fr
Inventor
Joachim Schöneman
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.)
Walzen Irle GmbH
Original Assignee
Walzen Irle 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
Priority claimed from DE19950645A external-priority patent/DE19950645A1/de
Application filed by Walzen Irle GmbH filed Critical Walzen Irle GmbH
Publication of EP1006236A2 publication Critical patent/EP1006236A2/fr
Publication of EP1006236A3 publication Critical patent/EP1006236A3/fr
Application granted granted Critical
Publication of EP1006236B1 publication Critical patent/EP1006236B1/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
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/02—Rolls; Their bearings
    • D21G1/0253—Heating or cooling the rolls; Regulating the temperature
    • D21G1/0266—Heating or cooling the rolls; Regulating the temperature using a heat-transfer fluid
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/02—Rolls; Their bearings

Definitions

  • the invention relates to a calender roll which can be heated by means of a heating medium, especially for smoothing or calendering, with a hollow cylindrical, a provided in a central bore of the roller body displacement having roll body and flanged on both sides, him carrying flange.
  • Such calender rolls are used, for example, for smoothing or calendering of Paper used in calenders cf. DE 30 14 891A.
  • An effective, even heating of the Surface of the roll body can be through a variety of peripheral holes reach, which are penetrated by the heating medium. But you also have the inner jacket heated the roller body and by fitting a displacer the resulting gap in front of the inner shell so concentrated that a good Heat transfer securing flow rates can be achieved. But Even with the use of peripheral drilling is often already for the sake of Weight saving of the roller body bored central, since the loss of central, Neutral phase, although the weight is reduced, but the load capacity only slightly reduces. This leaves a filling of the cavity of the Roller body with the heating medium or blocks it against the heating medium from.
  • the invention is based on the task of internals for the central bore of a To provide roll body of heatable calender rolls, which criticized Do not have disadvantages of the usual displacement body.
  • Prosoft and Optiload with Surface temperatures between 70 and about 135 ° C can be the displacer Made of conventional plastics, and only for rolls for soft calender with up to 200 ° C surface temperature, the choice is special, more thermoresistant Plastics required.
  • a heatable calender roll is shown, the hollow cylindrical Roll body 1 is supported by flanged on both sides flange 2.
  • the roller body is provided with a number of peripheral holes 3 for the passage of equipped with heating medium and, for example, to reduce the total weight, provided with a central bore 4 of larger diameter.
  • the supply of the heating medium and its return takes place by a on End of the flange 2 provided two-piece connection head 5; But it is also possible, the end of each of the flange 2 with a to provide one-piece connection head.
  • the central bore 4 of the roller body 1 is provided with a displacement body 6 equipped, which is made of solid plastic.
  • This made of plastic Displacer 6 can already firmly by simply pressing be connected to the roller body 1. It has proven itself, the displacement body not about its overall length with the same, the inner diameter the outer diameter of the central bore 4, but this diameter provided for the press fit only certain Length sections 7 comply and between these the outside diameter of Reduce displacer 6 slightly.
  • the Displacer 6 in a number individually and successively guidedpressender Be divided into sections.
  • the lateral surface of the illustrated roller body is coated with a coating 8 Plastic equipped.
  • the reflux of the heating medium to the connector 5 can be a simple Bore 9 can be effected; if necessary, this may, if necessary, by a Be booked up pipe. But it is also possible, the reflux of the heating medium in the area of one or more grooves 10, which are axially parallel, in Shape of turns, helical or the like, along the surface of the displacer 6 can draw. With appropriate design the groove they can be used to heat the inner shell of the roll body become. By reduction of its cross section in the flow direction of the heating medium can the effect of increasing cooling in the flow direction be compensated. If necessary in connection with peripheral bores or only for these can arbitrary flow schemes be realized, e.g. two parallel lines in series with another.
  • the easy processability of the plastic also allows economical installation from special installations to. This is especially true for steam-heated rolls axial or axially parallel steam supply holes for the opposite side of the roller body be arranged in the plastic displacement body as well as axial or axially parallel condensate drainage holes.
  • the displacement body can be provided with corresponding, preferably recessed grooves respectively radially encircling grooves at the ends of the displacer 6 equipped Nutein loftungen have proven to be in the ends of the Central bore 4 of the roll body.
  • peripheral holes 3 with the heating medium can be in predetermined group schemes by additional design of the displacer 6 or at least its ends Achieve:
  • the easy workability as noticeable as the low specific weight of the plastic which facilitates balancing work or unnecessary.
  • the displacer and the internals can also be multi-part be produced by pressing fit, screwing, tapping, gluing, Welding, etc. are connected.
  • a calender roll is shown, the hollow cylindrical roller body 11 is performed without peripheral drilling.
  • the roller body is equipped with a displacement body 12 equipped, which is designed as a hollow body and a Plastic tube 13 is completed on both sides by plastic flanges 14 is.
  • the inner shell of the roller body 11 and / or the shell of the displacement body 12 are provided with grooves 15 so that this groove 15 passed Heating medium contacted the inner shell of the roller body 11 directly and can give off this heat.
  • a coulter could be more parallel to the axis Nute be arranged as they are shown in the manner of a settlement in Figure 4; In general, however, you will be a number in the manner of a multi-thread intertwined multi-course helical groove provide.
  • both Flange pin to equip each with a one-piece connection head.
  • a varied heatable calender roll 16 is shown, which with a solid plastic displacement body 17 is provided, the expedient of closed-cell Foamed plastic is created. Again, extend the channels forming grooves 15 useful helically, and according to the Throughput, the heating medium collects in the space 18 and flows through a central Bore 9 of the displacer 17 from, in the end of a pipe socket 19th is on the other hand but also over the entire length of the bore can extend.
  • the return serving hole can be omitted are when the displacer 17 according to the schematic view 6 is executed and has grooves 20 and 21, which are in the manner of a sauté linen are arranged, and at the left end of the displacer 17 either end in a short ring or in any other way connected to each other.
  • groove 20 a first channel is formed, in which the heating medium helically to the opposite End of the displacer 17 and thus the heated body to be heated is guided, and from this end then the heating medium in the through Nut 21 formed channel returned. Since one inlet each - a drainage channel is guided adjacent, this already results in a certain adjustment of the effect the inlet to the outlet temperature. But this alignment can be continue to drive by, as in the enlarged portions of Fig. 7a and 7b, the groove cross-sections are reduced in the flow direction such that the resulting different flow rates required Change the heat transfer coefficients cause.
  • FIG. 8 once again shows a varied calender roll which is in the line guide 5 corresponds to the displacement body 12, however, like that of the Fig. 3, is executed hollow for further weight reduction. In this case, if a return via a space 18 is desired, it is necessary that the Pipe socket 19 of FIG. 5 by an entire displacement body 12 and the Flange 2 to replace 2 continuous pipe.
  • FIG. 9 For example, are for the passage of the Heating medium mutually parallel groove 15 of the plastic tube 13 of the Fig. 3 used.
  • FIG. 10 the return line of the heating medium causing groove 35 of the displacer shown with greater width than those causing the forwarding Nute 33 and 34.
  • systems such as those of FIG. 11 can be created, in which by three grooves 26, 27, which are operated in series, a doubly coiled channel is created at the different flow rates again by different groove widths and / or depths are achievable.
  • a heatable calender roll is shown interrupted, that of the Fign. 1 and 2 corresponds to:
  • the roller body 1 is peripheral Holes 3 equipped.
  • an additional heating is considered:
  • the heating medium rises in holes 28 to the peripheral holes. 3 it exits through drain holes 29, reaches the room 30 and then flows by grooves 31 of the plastic displacer 6, which create channels after are bounded outside by surfaces of the inner shell of the roll body 1, so that here a renewed heating, for example.
  • a renewed heating for example.

Landscapes

  • Paper (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Treatment Of Fiber Materials (AREA)

Claims (13)

  1. Rouleau de calandre pouvant être chauffé au moyen d'un fluide chauffant et destiné notamment au lissage ou au satinage, comportant un corps de rouleau cylindrique creux (1) présentant un corps de refoulement (6, 12, 17) prévu dans un alésage central (4) du corps de rouleau (1) et des tourillons de bridage bridés des deux côtés de celui-ci et le supportant,
    caractérisé en ce que
    le corps de refoulement (6, 12, 17) est composé d'un matériau qui est spécifiquement plus léger que le matériau du corps de rouleau (1 ).
  2. Rouleau de calandre selon la revendication 1,
    caractérisé en ce que
    le corps de refoulement (6, 12, 17) est composé d'un matériau qui est spécifiquement plus léger que le fluide chauffant.
  3. Rouleau de calandre selon la revendication 1 ou 2,
    caractérisé en ce que
    le corps de refoulement (6, 17) est composé de matière plastique, de préférence de matière plastique massive.
  4. Rouleau de calandre selon les revendications 1 à 3,
    caractérisé en ce que
    le corps de refoulement (6, 12, 17) est composé de matière plastique en mousse présentant des pores fermés de préférence.
  5. Rouleau de calandre selon les revendications 1 à 4,
    caractérisé en ce que
    le corps de refoulement (6, 17) présente au moins un alésage central (9).
  6. Rouleau de calandre selon les revendications 1 à 5,
    caractérisé en ce que
    le corps de refoulement (6, 12, 17) est équipé d'au moins une gorge (10, 15, 20, 21, 23, 24, 25, 26, 27, 33, 34, 35) s'étendant le long de sa circonférence.
  7. Rouleau de calandre selon la revendication 6,
    caractérisé par
    des gorges (20, 21, 31) s'étendant en forme de lignes hélicoïdales.
  8. Rouleau de calandre selon la revendication 6,
    caractérisé par
    des gorges (9, 15, 31) s'étendant le long de lignes d'enveloppe ou en biais vers celles-ci.
  9. Rouleau de calandre selon les revendications 1 à 8,
    caractérisé en ce que
    le diamètre extérieur du corps de refoulement (6) garantit un ajustement à presse dans l'alésage central (4).
  10. Rouleau de calandre selon la revendication 9,
    caractérisé en ce que
    le diamètre extérieur du corps de refoulement (6) n'est adapté que sur plusieurs sections de longueur (7) à l'alésage central (4) du corps de rouleau (1) et est en retrait entre celles-ci.
  11. Rouleau de calandre selon les revendications 1 à 10,
    caractérisé en ce que
    le corps de refoulement (6) se divise dans son sens longitudinal en segments d'injection individuels.
  12. Rouleau de calandre selon les revendications 1 à 11,
    caractérisé en ce que
    le corps de refoulement (12) ou les segments d'injection le constituant se présentent sous forme de corps creux en matière plastique.
  13. Rouleau de calandre selon les revendications 1 à 12,
    caractérisé en ce que
    le corps de refoulement (6) est réalisé en plusieurs pièces et présente des échancrures adaptées à diverses fins.
EP19990122637 1998-11-26 1999-11-13 Rouleau chauffé pour calandre Expired - Lifetime EP1006236B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19854522 1998-11-26
DE19854522 1998-11-26
DE19950645A DE19950645A1 (de) 1998-11-26 1999-10-21 Beheizte Kalanderwalze
DE19950645 1999-10-21

Publications (3)

Publication Number Publication Date
EP1006236A2 EP1006236A2 (fr) 2000-06-07
EP1006236A3 EP1006236A3 (fr) 2003-05-21
EP1006236B1 true EP1006236B1 (fr) 2005-01-19

Family

ID=26050390

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990122637 Expired - Lifetime EP1006236B1 (fr) 1998-11-26 1999-11-13 Rouleau chauffé pour calandre

Country Status (3)

Country Link
EP (1) EP1006236B1 (fr)
JP (1) JP3443546B2 (fr)
CA (1) CA2290291C (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020033683A (ko) * 2002-03-14 2002-05-07 김태석 캘린더 머신용 조립형 드릴드 롤
ES2321644T3 (es) * 2006-04-03 2009-06-09 Kuraray Europe Gmbh Procedimiento para la produccion de una lamina gofrada por una cara sobre la base de un poli (alcohol vinilico) parcialmente acetalizado.
ITPI20130063A1 (it) * 2013-07-04 2015-01-05 Cosmec Italia S R L Corpo di scambio termico e apparecchiatura per la produzione di ghiaccio, in particolare, per impiego con fluidi refrigeranti ad alta pressione, e metodo per la fabbricazione di detto corpo di scambio termico

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3014891A1 (de) * 1980-04-17 1981-10-22 Schwäbische Hüttenwerke GmbH, 7080 Aalen Vorrichtung mit einer mittels eines waermetraegers temperaturgeregelten hohlwalze
DE9000980U1 (de) * 1990-01-29 1990-05-10 Schwäbische Hüttenwerke GmbH, 73433 Aalen Walze für ein Glättwerk oder einen Kalander

Also Published As

Publication number Publication date
EP1006236A3 (fr) 2003-05-21
CA2290291A1 (fr) 2000-05-26
EP1006236A2 (fr) 2000-06-07
JP2000192392A (ja) 2000-07-11
JP3443546B2 (ja) 2003-09-02
CA2290291C (fr) 2005-04-26

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