EP0934223B1 - Dispositif de decambrage d'un materiau de support - Google Patents

Dispositif de decambrage d'un materiau de support Download PDF

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Publication number
EP0934223B1
EP0934223B1 EP97946733A EP97946733A EP0934223B1 EP 0934223 B1 EP0934223 B1 EP 0934223B1 EP 97946733 A EP97946733 A EP 97946733A EP 97946733 A EP97946733 A EP 97946733A EP 0934223 B1 EP0934223 B1 EP 0934223B1
Authority
EP
European Patent Office
Prior art keywords
decurling
eliminating
substrate material
decurling unit
unit according
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
EP97946733A
Other languages
German (de)
English (en)
Other versions
EP0934223A1 (fr
Inventor
Christian Schauer
Helmut Naeser
Georg BÖHMER
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.)
Canon Production Printing Germany GmbH and Co KG
Original Assignee
Oce Printing Systems GmbH and Co KG
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 Oce Printing Systems GmbH and Co KG filed Critical Oce Printing Systems GmbH and Co KG
Publication of EP0934223A1 publication Critical patent/EP0934223A1/fr
Application granted granted Critical
Publication of EP0934223B1 publication Critical patent/EP0934223B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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 present invention relates to a decurling unit according to the preamble of claim 1 for decurling carrier material.
  • the paper quality can be considered within a paper stack are assumed to be constant, but not the number of Fixations per sheet or per page.
  • Roll paper that e.g. with automatic feeding into one Cut sheet printer at the printer entrance cut to size , the curvature that changes with the roll diameter must of the fed paper are taken into account.
  • de-arching units also in German Known as "Decurler”
  • the paper with only a direction of deformation i.e. concave or convex curvature
  • Such a known decurling unit bends the paper against the direction of deformation. at undeformed, i.e. straight paper, this decurling unit may not be used, otherwise it would be in it be deformed. Therefore, paper transport is smooth Paper with such a decurling unit is not possible.
  • a decurling device is known the either concave or convex paper smoothes or can be passed through smooth paper, without bending the paper.
  • the vaulting facility has two parallel to each other running strips that are transverse to the direction of transport of the paper, and two parallel to the two bars extending rollers, which in Direction of transport seen immediately after the two Strips are arranged.
  • the strips and the rollers are on attached to a common swivel with which together around a transverse to the direction of transport Axis can be pivoted.
  • the paper will be between passed through the two strips and the two rollers, one bar with diametrically opposite arranged roller forms a decurling unit with which convex or concave paper can be smoothed.
  • the strips and the rollers are used to smooth the paper pivoted together about the axis so that the decurling device continuous paper on one of the two Last as well as the diametrically opposed Roller is under tension and is thereby arched. If the decurling device runs through smooth paper, the pivoting device is placed so that the paper runs between the strips and the rollers without to touch them.
  • a decurling unit is known from US Pat. No. 5,565,971. with the optionally concave or convex arched carrier material can be smoothed.
  • the decurling unit has to this Purpose a transverse to the direction of transport of the carrier material fixed first roller and a parallel to this running, driven, rubberized second roller, whereby both rollers are attached to a common base plate are.
  • the invention is therefore based on the object of a decurling unit To provide a smoothing of the Backing material regardless of the direction of deformation allows.
  • carrier material with a concave or a convex deformation also carrier material passed through the decurling unit without deformation can be.
  • the element in the decurling unit according to the invention is to remove convexity with the element for Eliminating concavity so functionally coupled that on the one hand with an increase in the effect of the element Eliminating convexity a decrease in the effect of the Elements to remove concavity and on the other hand a decrease in the effectiveness of the elimination element from convexity to an increase in the effect of the element Elimination of concavity occurs.
  • This enables one continuous or graded adjustment of the decurling unit between two extreme settings for elimination extreme concavity or extreme convexity.
  • the element is to be eliminated of concavity a wave of dewatering with itself extending perpendicular to the direction of transport of the carrier material Axis of rotation, with the de-arching shaft in one or more arranged parallel to each other, driving them by static friction stretchable de-belting that is submersible between a drive roller and a deflection roller for the or the de-belting in the transport direction of the Carrier material are stretched, the axes of rotation of the Drive roller and the deflection roller also perpendicular to Extend the direction of transport of the carrier material, so that the or Deconvolution belt in convex shape on the decurling shaft is or are concerned.
  • the concavity is removed by the concave arched substrate to be smoothed between the de-tearing belt and the one in it with a suitable one Immersion depth t immersed wave of decurling and between the belt and shaft convex, i.e. opposite, is bent.
  • the element is useful for eliminating convexity one concave in the transport direction of the carrier material shaped outlet contour that is in the paper path at an angle is pivotable.
  • the convex paper is made by the concave curved outlet contour, by a suitable swivel angle ⁇ is swung out in the opposite direction deformed, whereby a smoothing is achieved.
  • these are Element for removing concavity and the element for Elimination of convexity rigidly connected by a linkage and pivotable together about a common axis of rotation A.
  • the linkage is expediently pivoted through a tooth segment rigidly connected to the linkage via a Pinion of an actuator.
  • This configuration is special simple and enables a continuous curvature of the carrier material by a corresponding one-time rotation of the tooth segment.
  • the decoiling device Especially when using rolled paper, that will be cut at the printer entrance becomes the diameter of the coil and based on the detected diameter the servomotor of the decurling unit is controlled. In this way, the decoiling device according to the invention the curvature of the rolled paper on Printer input constantly adjusted.
  • Fig. 1 shows schematically the smoothing process for concave corrugated paper a and convex curved paper b that made up a fixing station F is ejected.
  • the deburring unit E converts the concave or convex paper to smooth Paper c around.
  • Fig. 2 shows a sectional view of a preferred embodiment the decurling unit in a first setting.
  • a pivotable rod 10 is fixed, dives in or the tensioned de-belt 4 with a Immersion depth t1. This arrangement forms an element for Eliminating concavity.
  • An outlet contour 12 with a concave curvature is around swung out a swivel angle ⁇ 1 downwards. she forms an element for eliminating convexity. That from the element to remove concavity Sheet of paper will be opposite to one here existing convex curvature of the paper. The bigger the swivel angle ⁇ 1, the weaker the effect to remove convexity. The uncurled paper is in forwarded in the direction of R2.
  • Both the decurling shaft 8 and the outlet contour 12 are rigidly connected to the axis of rotation A, about which the Linkage 10 is pivotable. Swiveling the boom 10 counterclockwise increases the depth of indentation t1 and the swivel angle ⁇ 1, whereby the component for Eliminating concavity strengthened and the component to Elimination of convexity is weakened. Therefore, by Swing the boom counterclockwise an appropriate one Setting to remove incoming paper with always greater concavity can be achieved. This setting takes place via a toothed segment rigidly connected to the linkage 10 10a, which with a pinion 14a of a servomotor 14 in Intervention is.
  • Fig. 3 shows a sectional view of the preferred embodiment the decurling unit in a second setting. Tension the drive roller 2 and the deflection roller 6 in turn, the one or more de-arching belts 4.
  • the decurling wave 8 plunges here into the one or more De-warping belt 4 with an immersion depth t2 that is smaller than the immersion depth t1 of FIG. 1.
  • One along convex upward in the direction of R1 Sheet of paper is drawn on its leading edge from the through the rubber-like de-belting 4 driven de-winding shaft 8 detected and drawn in between.
  • the initially convex arched sheet of paper is transported between the Belt 4 and shaft 8 have only a slight convex curvature imposed, which at least caused the initial convex curvature is not reinforced.
  • the smaller the depth of penetration t2 the weaker the convex bending effect, i.e. the effect of removing concavity.
  • the outlet contour 12 with its concave curvature is now over swung out a swivel angle ⁇ 2, which is smaller than the swivel angle ⁇ 1 of FIG. 1. That from the element to remove concavity Sheet of paper will be opposite to one here existing concave curvature of the paper curved.
  • the pivoting of the linkage 10 clockwise causes one Decrease in the penetration depth t2 and the swivel angle ⁇ 2, thereby weakening the concavity removal component and the component to remove convexity is strengthened. Therefore, by swinging the boom here clockwise a suitable setting for removal of incoming paper with increasing convexity become. This setting is made using the Linkage 10 rigidly connected tooth segment 10a, which with the Pinion 14a of the actuator 14 is engaged.
  • Fig. 4 shows a printer with integrated decurling units E, each in the paper paths of two printing units a fuser F are connected. Here is the Compactness of the decurling units E clearly.
  • Fig. 5 shows a printer arrangement using roll paper R.
  • the Dewatering unit E at the printer entrance behind the cutting unit S constantly adjusted.
  • the winding diameter of the Roll of roll paper R is made using a rotary encoder D gripped with an extension lever and serves as the basis for controlling the stepping motor of the decurling unit E.

Landscapes

  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)

Claims (11)

  1. Unité d'aplatissement pour aplatir un matériau de support en feuille, en particulier du papier, qui présente le cas échéant un gondolement convexe ou concave dans une direction parallèle à la direction de défilement du matériau de support, l'unité d'aplatissement (2, 4, 6, 8, 10, 12) comportant un élément (2, 4, 6, 8) d'élimination de la concavité en série avec un élément (12) d'élimination de la convexité, les deux éléments étant traversés par le matériau de support à aplatir, caractérisée en ce que l'élément (2, 4, 6, 8) d'élimination de la concavité est réglable et est mécaniquement couplé à l'élément (12), également réglable, d'élimination de la convexité, de sorte que d'un côté l'action de l'élément (2, 4, 6, 8) d'élimination de la concavité diminue lorsque l'action de l'élément (12) d'élimination de la convexité augmente, et d'un autre côté l'action de l'élément (2,4, 6, 8) d'élimination de la concavité augmente lorsque l'action de l'élément (12) d'élimination de la convexité diminue.
  2. Unité d'aplatissement selon la revendication 1, caractérisée en ce que l'élément d'élimination de la concavité est un arbre d'aplatissement (8) dont l'axe de rotation s'étend perpendiculairement à la direction de défilement du matériau de support, l'arbre d'aplatissement (8) pouvant passer entre une ou plusieurs courroies d'aplatissement (4) élastiques, agencées en parallèle et entraínant celui-ci par frottement, lesquelles courroies sont tendues dans la direction de défilement du matériau de support, entre un rouleau d'entraínement (2) et un rouleau de retournement (6) pour la ou les courroies d'aplatissement, l'axe de rotation du rouleau d'entraínement (2) et l'axe de rotation du rouleau de retournement (6) s'étendant également perpendiculairement à la direction de défilement du matériau de support de sorte que la ou les courroies d'aplatissement (4) portent contre l'arbre d'aplatissement (8) en prenant une forme convexe.
  3. Unité d'aplatissement selon la revendication 1 ou 2, caractérisée en ce que l'élément d'élimination de la convexité est un profilé de sortie (12) de forme concave dans la direction de défilement du matériau de support, lequel profilé est pivotant dans la voie de défilement du matériau de support.
  4. Unité d'aplatissement selon la revendication 1, 2 ou 3, caractérisée en ce que l'élément d'élimination de la concavité et l'élément d'élimination de la convexité sont reliés rigidement par un système de tringles (10) et sont pivotants ensemble autour d'un axe de rotation commun A.
  5. Unité d'aplatissement selon la revendication 4, caractérisée en ce que le pivotement du système de tringles (10) est réalisé par un pignon (14a) d'un servomoteur (14) via un segment denté (10a) relié rigidement au système de tringles.
  6. Unité d'aplatissement selon l'une des revendications 1 à 5, caractérisée en ce que l'unité d'aplatissement est réglable automatiquement en fonction de l'état de gondolement initial du matériau de support.
  7. Unité d'aplatissement selon la revendication 6, caractérisée en ce que le réglage automatique est effectué en fonction du mode d'impression choisi.
  8. Unité d'aplatissement selon la revendication 6, caractérisée en ce que le réglage automatique est effectué en fonction de la qualité du matériau de support.
  9. Unité d'aplatissement selon la revendication 6, caractérisée en ce que le réglage automatique est effectué en fonction d'une combinaison de l'état de gondolement initial du matériau de support, du mode d'impression choisi et de la qualité du matériau de support.
  10. Unité d'aplatissement selon l'une des revendications 6 à 9, caractérisée en ce que le réglage automatique est effectué en commandant le servomoteur (14) de l'unité d'aplatissement.
  11. Unité d'aplatissement selon la revendication 10, caractérisée en ce que, lorsque l'on utilise du papier en rouleau qui est découpé à l'entrée de l'appareil d'impression, on mesure le diamètre du rouleau, et, à partir du diamètre mesuré, on commande le servomoteur (14) de l'unité d'aplatissement.
EP97946733A 1996-10-22 1997-10-20 Dispositif de decambrage d'un materiau de support Expired - Lifetime EP0934223B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19643667 1996-10-22
DE19643667 1996-10-22
PCT/DE1997/002419 WO1998017566A1 (fr) 1996-10-22 1997-10-20 Dispositif de decambrage d'un materiau de support

Publications (2)

Publication Number Publication Date
EP0934223A1 EP0934223A1 (fr) 1999-08-11
EP0934223B1 true EP0934223B1 (fr) 2002-01-30

Family

ID=7809514

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97946733A Expired - Lifetime EP0934223B1 (fr) 1996-10-22 1997-10-20 Dispositif de decambrage d'un materiau de support

Country Status (4)

Country Link
US (1) US6199859B1 (fr)
EP (1) EP0934223B1 (fr)
DE (2) DE19781151D2 (fr)
WO (1) WO1998017566A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6782822B2 (en) * 2000-02-23 2004-08-31 Agfa-Gevaert Compact printing apparatus and method
US6991130B2 (en) * 2002-09-13 2006-01-31 Avery Dennison Corporation Versatile label sheet and dispenser
US7128236B2 (en) * 2002-09-13 2006-10-31 Avery Dennison Corporation Versatile label sheet and dispenser
JP4162004B2 (ja) * 2005-12-13 2008-10-08 コニカミノルタビジネステクノロジーズ株式会社 画像形成装置、画像形成方法及びシート材搬送装置
JP4983623B2 (ja) * 2008-01-29 2012-07-25 Ｎｋワークス株式会社 デカール機構
JP2009179415A (ja) * 2008-01-29 2009-08-13 Noritsu Koki Co Ltd ペーパー排出機構
DE102010016817A1 (de) 2010-05-06 2011-11-10 OCé PRINTING SYSTEMS GMBH Anordnung zum Übertragen von Tonerbildern auf ein bahnförmiges Trägermaterial unter Verwendung eines vorbestimmten Umschlingungswinkels
US11938699B2 (en) 2021-07-07 2024-03-26 Brown Llc Methods and systems for producing pressware
US11919270B2 (en) 2021-07-07 2024-03-05 Brown Llc Methods and systems for producing pressware
US11945670B2 (en) * 2021-07-07 2024-04-02 Brown Llc Methods and systems for producing pressware

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2737089A (en) 1953-10-21 1956-03-06 John R Baumgartner Apparatus for decurling a web
US4360356A (en) * 1980-10-15 1982-11-23 The Standard Register Company Decurler apparatus
JPH03503878A (ja) 1988-01-15 1991-08-29 イーエムエフ・コーポレーション ペーパーシート仕分け装置
US4952281A (en) * 1988-05-10 1990-08-28 Kobayashi Engineering Works, Ltd. Sheet curls reformer
US5183454A (en) * 1989-11-10 1993-02-02 Hitachi Koki Co., Ltd. Paper curl correction apparatus
JPH04338060A (ja) * 1991-05-14 1992-11-25 Fuji Xerox Co Ltd 用紙のカール低減装置
JPH05221574A (ja) 1991-08-14 1993-08-31 Fuji Xerox Co Ltd 用紙のカール補正装置
JP2737504B2 (ja) 1992-01-08 1998-04-08 日本電気株式会社 ロール紙のカール解消装置
US5153662A (en) * 1992-04-06 1992-10-06 Xerox Corporation Sheet decurling apparatus
US5202737A (en) * 1992-06-12 1993-04-13 Xerox Corporation Method and apparatus for decurling sheets in a copying device
US5565971A (en) * 1994-10-03 1996-10-15 Xerox Corporation Pivotal bi-directional decurler
US5539511A (en) * 1994-12-16 1996-07-23 Xerox Corporation Multilevel/duplex image sheet decurling apparatus
DE29503120U1 (de) 1995-02-24 1996-06-27 Böwe Systec AG, 86161 Augsburg Glättvorrichtung für eine Papierbahn in einer papierverarbeitenden Maschine
US5717836A (en) * 1995-03-09 1998-02-10 Matsushita Electric Industrial Co., Ltd. Printing apparatus having a retractable curl removal member and reversible roller
US6064853A (en) * 1999-09-10 2000-05-16 Lexmark International, Inc. Apparatus for curling materials

Also Published As

Publication number Publication date
DE19781151D2 (de) 1999-09-23
US6199859B1 (en) 2001-03-13
EP0934223A1 (fr) 1999-08-11
DE59706262D1 (de) 2002-03-14
WO1998017566A1 (fr) 1998-04-30

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