EP0225988B1 - Dispositif pour aplanir une bande - Google Patents

Dispositif pour aplanir une bande Download PDF

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Publication number
EP0225988B1
EP0225988B1 EP86114332A EP86114332A EP0225988B1 EP 0225988 B1 EP0225988 B1 EP 0225988B1 EP 86114332 A EP86114332 A EP 86114332A EP 86114332 A EP86114332 A EP 86114332A EP 0225988 B1 EP0225988 B1 EP 0225988B1
Authority
EP
European Patent Office
Prior art keywords
roller
rollers
sections
spreader
casing sections
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
EP86114332A
Other languages
German (de)
English (en)
Other versions
EP0225988A1 (fr
Inventor
Klaus Theilacker
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.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen AG
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 MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0225988A1 publication Critical patent/EP0225988A1/fr
Application granted granted Critical
Publication of EP0225988B1 publication Critical patent/EP0225988B1/fr
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
    • D21F1/36—Guiding mechanisms
    • D21F1/40—Rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/02—Conveying or guiding webs through presses or machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
    • B65H23/022—Registering, tensioning, smoothing or guiding webs transversely by tentering devices
    • B65H23/025—Registering, tensioning, smoothing or guiding webs transversely by tentering devices by rollers
    • B65H23/0251—Registering, tensioning, smoothing or guiding webs transversely by tentering devices by rollers with a straight axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/34—Apparatus for taking-out curl from webs

Definitions

  • the invention relates to a spreader device with spreader rollers with a plurality of roller sections for running material webs, in particular for printing material webs.
  • rollers which, arranged axially next to one another, form an spreader roller which is arranged transversely to a running material web made of paper or the like.
  • the degree of curvature of the spreader roller can be individually adjusted on the individual rollers.
  • Such a spreading device composed of several axially adjacent rollers is structurally complex since considerable mechanical means are required for the required adjustment of the curvature.
  • FIGS. 1 and 3 each show the spreader roller pair according to the invention, with FIGS. 2 and 4 showing sections (1, 2 and 3) through the spreader roller pair consisting of the rollers (4, 5).
  • a material web to be transported for example a print carrier web (6)
  • the rollers (4, 5) are arranged parallel to one another.
  • At least one of the rollers, but preferably both rollers (4, 5) are axially displaceable. For this purpose, they are mounted in side walls in a corresponding manner via roller journals, not shown.
  • the axial displaceability of the rollers (4, 5) must be stepless and possible while the print carrier web (6) is running.
  • the rollers (4, 5) have circular but only partially cylindrical cross sections. They taper towards one end.
  • the roller (4) has a jacket (7) with three jacket sections (7a, 7b, 7c).
  • the jacket (8) of the roller (5) consists of three sections (8a, 8b, 8c).
  • a cylindrical jacket section for example (7a) with the largest diameter (D1)
  • a cylindrical jacket section (8a) with the smallest diameter (d1) opposite the other roller (5).
  • the largest diameter (d3) of the roller (5) of the cylindrical jacket section (8c) is opposite a cylindrical jacket section (7c) of the roller (4) with the smallest diameter (D3).
  • the slope of the conical or bulbous sections (7b and 8b) lying between the above-mentioned jacket sections runs in the opposite direction.
  • Fig. 1 shows the rollers (4, 5) in the neutral center position, in which the looping path of the print carrier web (6) is the same length at every point over the entire roller width.
  • the sum of the diameters (D1 to D3) of the roller (4) and the diameter (d1 to d3) of the Roller (5) is the same size at every point, for example at the cuts (1, 2, 3). This can best be seen from FIG. 2.
  • rollers (4, 5) move in the opposite direction, in relation to the direction of the arrows (9, 10), the opposite is achieved, namely an increase in tension in the middle of the print carrier web (6) with respect to the edge zones.
  • the tangent of the taper angle of the tapered rollers in the middle casing sections (7b, 8b) must always be sufficiently smaller than the coefficient of friction between the rollers (4, 5) and the print carrier web (6).
  • the smoothing effect of the print carrier web (6) running through the spreader rollers (4, 5) can be optimized by making a hard transition from the cylindrical jacket sections (7a, 8a and 7c, 8c) to the conical jacket sections (7b, 8b) avoids.
  • a mathematically determined curve shape e.g. B. after a sine function, this transition can be shaped fluently, so that the rollers (4, 5) in the form similar to that of bottles.
  • a tension optimum can be set for each type of paper that is processed as a print carrier.
  • the spreader roller arrangement according to the invention influences such as different paper thicknesses or material-related fluctuations in elastic modulus can thus be eliminated in their effect over the width of the printing medium web.
  • the different stretching between the center of the print carrier web and its edge zone can be eliminated with the spreader rollers (4, 5) according to the invention.
  • This also prevents the web from fluttering or tending to wrinkle.
  • the spreader roller pair (4, 5) according to the invention can be arranged as often as desired in rotary printing presses, for example between the first printing unit and the feed unit and between individual printing units or in the folding structure.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Rotary Presses (AREA)
  • Handling Of Continuous Sheets Of Paper (AREA)

Claims (1)

  1. Dispositif d'étirage en largeur comprenant des rouleaux d'étirage en largeur qui possèdent plusieurs segments de rouleaux pour bandes de matières en défilement, en particulier, pour bandes de matières à imprimer, caractérisé en ce que deux rouleaux (4, 5) qui sont embrassés par la bande de matière (6) avec une forme de S sont disposés transversalement à la direction du défilement de la bande de matière (6) à un certain écartement l'un de l'autre, les parois latérales (7, 8) des rouleaux présentent chacune au moins trois segments de paroi latérale (7a, b, c, 8a, b, c) les segments cylindriques extérieurs (7a, c) respectivement de grand diamètre et de petit diamètre (D1, D3) de la paroi latérale d'un rouleau (4) sont placés en face des segments cylindriques extérieurs (8a, c), respectivement de petit diamètre et de grand diamètre (d1, d3), de la paroi latérale de l'autre rouleau (5) et les segments précités (7a, 7c, 8a, 8c) de la paroi latérale sont réunis par un segment de paroi latérale (7b, 8b) qui s'étend sans interruption, ces parois latérales sont conformées de manière que les sommes des circonférences situées l'une en face de l'autre soient égales en tous points de la paire de rouleaux dans la position neutre (figure 1), et en ce qu'au moins un rouleau (par exemple 5) peut se déplacer en translation axiale parallèlement à l'autre rouleau (par exemple 4).
EP86114332A 1985-12-20 1986-10-16 Dispositif pour aplanir une bande Expired EP0225988B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3545270 1985-12-20
DE3545270A DE3545270C1 (de) 1985-12-20 1985-12-20 Breitstreckvorrichtung

Publications (2)

Publication Number Publication Date
EP0225988A1 EP0225988A1 (fr) 1987-06-24
EP0225988B1 true EP0225988B1 (fr) 1989-02-22

Family

ID=6289060

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86114332A Expired EP0225988B1 (fr) 1985-12-20 1986-10-16 Dispositif pour aplanir une bande

Country Status (4)

Country Link
US (1) US4748909A (fr)
EP (1) EP0225988B1 (fr)
JP (1) JPS62161661A (fr)
DE (2) DE3545270C1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0737132B2 (ja) * 1990-06-30 1995-04-26 株式会社東京機械製作所 輪転機におけるガイドローラー装置
US5891008A (en) * 1995-12-15 1999-04-06 The Procter & Gamble Company Sheet products for use in a pop-up dispenser and method for forming from stretched ribbons
US5642835A (en) * 1995-12-15 1997-07-01 The Procter & Gamble Company Sheet products for use in a pop-up dispenser and method for forming
FI105804B (fi) 1997-01-30 2000-10-13 Valmet Corp Ulosottotela, levitystela tai vastaava rainamaista materiaalia varten
US20040154146A1 (en) * 2001-05-17 2004-08-12 Pruitt Paul R. Web spreader roll and methods for spreading webs of material
DE10335758C5 (de) * 2003-08-05 2015-12-03 Manroland Web Systems Gmbh Verfahren und Druckwerk zur Beeinflussung der lateralen Bahnspreizung insbesondere an Rotationsdruckmaschinen
DE102005048246B4 (de) * 2005-10-07 2009-09-10 Maschinenfabrik Wifag Rotationsdruckmaschine mit Längendehnungs-Kompensator und Verfahren zum Bedrucken einer längsgeschnittenen Bahn
US7538680B2 (en) * 2006-04-28 2009-05-26 Checkpoint Systems, Inc. Alarm systems, wireless alarm devices, and article security methods

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE196742C (fr) *
US813288A (en) * 1905-07-03 1906-02-20 Thomas Hancock Felt-regulating device for paper-machines.
US920122A (en) * 1907-05-03 1909-05-04 Frank Farnworth Apparatus for stretching textile fabrics.
AT55619B (de) * 1911-01-02 1912-09-25 Alfred Meister Gewebe-Streckmaschine.
GB785680A (en) * 1955-02-01 1957-10-30 United States Steel Corp Improvements in and relating to self-centering or aligning rollers
GB939351A (en) * 1961-01-12 1963-10-16 Ici Ltd Improvements in web feed rollers
DE2139159C3 (de) * 1971-08-05 1974-08-15 Jagenberg-Werke Ag, 4000 Duesseldorf Vorrichtung zum Breitstrecken von Warenbahnen, insbesondere von Papierbahnen
CH612478A5 (fr) * 1976-04-30 1979-07-31 Armand Demiere
IT1083519B (it) * 1977-06-15 1985-05-21 Bassani Mariano Sistema di apertura di tessuti in corda
DE3003403A1 (de) * 1980-01-31 1981-08-06 Ramisch Kleinewefers Gmbh, 4150 Krefeld Vorrichtung zum breiten und/oder breithalten von durchlaufenden materialbahnen
JPS59167442A (ja) * 1983-03-11 1984-09-20 Toyo Kikai Kk 走行生地の拡布、案内装置
US4693587A (en) * 1984-07-16 1987-09-15 Canon Kabushiki Kaisha Image forming apparatus

Also Published As

Publication number Publication date
EP0225988A1 (fr) 1987-06-24
DE3545270C1 (de) 1987-04-23
DE3662135D1 (de) 1989-03-30
JPS62161661A (ja) 1987-07-17
US4748909A (en) 1988-06-07

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