EP0695715B1 - Dispositif pour un appareil de sortie de feuilles - Google Patents

Dispositif pour un appareil de sortie de feuilles Download PDF

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Publication number
EP0695715B1
EP0695715B1 EP95110274A EP95110274A EP0695715B1 EP 0695715 B1 EP0695715 B1 EP 0695715B1 EP 95110274 A EP95110274 A EP 95110274A EP 95110274 A EP95110274 A EP 95110274A EP 0695715 B1 EP0695715 B1 EP 0695715B1
Authority
EP
European Patent Office
Prior art keywords
sheet
guide
plate
flattener
sheets
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
EP95110274A
Other languages
German (de)
English (en)
Other versions
EP0695715A1 (fr
Inventor
Karlheinz Sellmann
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 EP0695715A1 publication Critical patent/EP0695715A1/fr
Application granted granted Critical
Publication of EP0695715B1 publication Critical patent/EP0695715B1/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
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/02—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles
    • B65H29/04—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles the grippers being carried by endless chains or bands
    • B65H29/041—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles the grippers being carried by endless chains or bands and introducing into a pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F25/00—Devices for pressing sheets or webs against cylinders, e.g. for smoothing purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/52—Stationary guides or smoothers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/03—Image reproduction devices
    • B65H2801/21—Industrial-size printers, e.g. rotary printing press

Definitions

  • the invention relates to a device for acting on sheets in a sheet delivery of a printing press, in which sheets can be printed either on one side or on both sides, a sheet straightener for unrolling the sheets when printing on one side and a guide device for contact-free guidance of the sheets when printing on both sides are provided.
  • the sheet straightener is attached to a lever which is pivotally mounted on the machine frame and is connected to a guide element via a gear comprising a curve, a drive rocker and a coupling.
  • the guide element is displaceably mounted on a degree guide and can be moved with the help of the transmission in perfecting into the space occupied by the sheet straightener, while at the same time the sheet straightener is pivoted under the sheet track. In this way, in two-sided printing, smearing of the ink is avoided when the sheets are transported to the delivery stack. In one-sided printing, in which the sheets tend to roll, the guide element is displaced along the sheet path and the sheet straightener is pivoted into the sheet path, over the guide plates and guide rods protrude so that the sheets can be sucked in and unrolled.
  • DD 22 5411 A1 discloses a further device of the type mentioned at the outset, in which the sheet straightener and the guide element are connected to one another, which is rotatably mounted in the machine frame about an axis parallel to the sheet path.
  • the sheet straightener and the guide element are located on opposite long sides of the component and can be pivoted into the effective range of the sheet track by rotating the component by 180 °.
  • the guide element can be connected to an air supply device which acts on the outlet openings with blown air, so that the sheets can be transported to the sheet stack without contact in the sheet delivery under the action of the blown air.
  • the known devices are complex to manufacture, since the trowel and the guide element have to be moved with the aid of suitable gears when changing from one-sided to two-sided printing.
  • the invention has for its object to provide a device of the type mentioned, which is characterized by a simple structure and low construction costs.
  • the object is achieved in that the sheet straightener is fixed to the machine frame in a position set back in relation to the guide track of the guide device and that a guide element is provided in the form of a plate which is used to cover the sheet straightener with double-sided pressure in the space between sheet track and sheet straightener is movable.
  • a complex gear mechanism for coordinating the movement of the sheet straightener and guide element is not required.
  • the sheet straightener is installed in a fixed position and therefore requires no movable storage and no movable connections for the supply of suction and possibly blown air.
  • the movability of the plate-shaped guide element can be achieved with simple structural measures.
  • the plate is attached to a section of the guide device that is adjacent to the smoothing device, this section being movable in a degree guide along the guide path of the guide device.
  • the plate can be mounted on the machine frame so as to be pivotable about an axis parallel to the smoothing machine, wherein the sections of the guiding device lying on both sides of the smoothing machine can also be fixed in place on the machine frame. In both cases, the plate-shaped guide element can be moved into the desired operating position with simple drive means.
  • a further advantageous embodiment of the device according to the invention is achieved in that the cover plate has openings which can be connected to the air gap of the sheet straightener and the sheet straightener can be connected to a blown air supply in the perfect and reverse printing.
  • FIG. 1 shows a sheet delivery with a chain circle 1, on which grippers 2 are arranged, which transport sheets from a printing unit 3 to a sheet stack 4.
  • a guiding device consisting of three sections 5, 6, 7 is arranged along the gripper track.
  • the sections of the guide device consist of hollow bodies in the manner of flat boxes, the cavity of which can be connected to a blown air supply.
  • the sections 5, 6, 7 are provided with air outlet openings 8 in their surface facing the gripper track.
  • Section 5 of the guiding device is mounted so that it can move in the longitudinal direction of the gripper track in a degree guide 12 and can be moved back and forth between two end positions by hand, pneumatically or electrically by means of an actuating device (not shown).
  • a guide element formed by a plate 13 with air openings 14 is fastened to the section 5 of the guide device on the side facing the sheet straightener 9.
  • FIG. 1 shows section 5 in the position provided for double-sided printing (face and back printing).
  • the plate 13 completely covers the sheet straightener 9 in this position of section 5, the openings 14 being located above the air gap 15 between the tubes 10, cf. dash-dotted representation in Figure 2.
  • the arc path of the guide device is closed.
  • blown air is fed to the sheet straightener 9, which exits through the air gap 12 and the openings 14 and acts on the sheets in order to support the contact-free sheet guidance.
  • plate 13 In the position of section 5 intended for one-sided printing (straight printing), plate 13 is located laterally next to sheet straightener 9. This position is shown in FIG. 2 and illustrated in FIG. 1 with dash-dotted lines.
  • the sheet smoother 9 is exposed and can be used if necessary by connecting it to a suction air source. As a result, the sheets guided along the sheet straightener 9 are sucked in, drawn between the tubes 10 and unrolled by the deformation caused thereby.
  • sections 5 and 6 of the guiding device and the sheet straightener 9 located therebetween are fixed in place on the machine frame.
  • the plate 13 serving as a guide element is fastened on its narrow sides to arms 16 which are mounted in the machine frame so as to be rotatable about an axis parallel to the smoothing device 9 and parallel to the latter.
  • the piston rod 17 of a pneumatic lifting cylinder 18 is fastened, by means of which the guide element can be pivoted from its position shown in FIG. 3 for one-sided pressure into the position shown in broken lines, in which the plate 13 covers the sheet straightener 9 and thereby the Archway closes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Discharge By Other Means (AREA)
  • Pile Receivers (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Vending Machines For Individual Products (AREA)

Claims (4)

  1. Dispositif pour agir sur les feuilles dans un receveur de feuilles d'une machine d'impression, dans laquelle des feuilles peuvent être imprimées au choix sur une face ou sur les deux faces, un élément de lissage de feuilles pour dérouler les feuilles lors de l'impression sur une face et un dispositif de guidage pour le guidage sans contact des feuilles lors de l'impression sur les deux faces étant prévus,
    caractérisé en ce que l'élément de lissage de feuilles (9) est fixé sur le bâti de la machine dans une position située vers l'arrière par rapport à la voie de guidage du dispositif de guidage (5,6,7), et en ce que l'on prévoit un élément de guidage sous forme d'une plaque (13) qui peut être déplacée, pour recouvrir l'élément de lissage de feuilles (9), lors de l'impression sur les deux faces, dans l'espace libre entre la voie d'avance des feuilles et l'élément de lissage de feuilles (9).
  2. Dispositif selon la revendication 1,
    caractérisé en ce que la plaque (13) est fixée sur un tronçon (5) du dispositif de guidage, adjacent à l'élément de lissage de feuilles (9), ce tronçon pouvant être déplacé dans un guide linéaire (12) le long de la voie de guidage du dispositif de guidage (5,6,7).
  3. Dispositif selon l'une des revendications 1 ou 2,
    caractérisé en ce que la plaque (13) est montée sur le bâti de la machine, de manière à pouvoir pivoter autour d'un axe parallèle à l'élément de lissage de feuilles (9), les tronçons (5,6) du dispositif de guidage situés des deux côtés de l'élément de lissage de feuilles (9) étant également fixés sur le bâti de la machine.
  4. Dispositif selon l'une des revendications précédentes,
    caractérisé en ce que la plaque de recouvrement (13) présente des ouvertures (14) pouvant être raccordées à la fente d'air (15) de l'élément de lissage de feuilles (9), et l'élément de lissage de feuilles (9) peut être raccordé, lors de l'impression sur les deux faces, à une amenée d'air de soufflage.
EP95110274A 1994-08-06 1995-07-01 Dispositif pour un appareil de sortie de feuilles Expired - Lifetime EP0695715B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4427897A DE4427897C1 (de) 1994-08-06 1994-08-06 Vorrichtung für einen Bogenausleger
DE4427897 1994-08-06

Publications (2)

Publication Number Publication Date
EP0695715A1 EP0695715A1 (fr) 1996-02-07
EP0695715B1 true EP0695715B1 (fr) 1997-05-02

Family

ID=6525094

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95110274A Expired - Lifetime EP0695715B1 (fr) 1994-08-06 1995-07-01 Dispositif pour un appareil de sortie de feuilles

Country Status (4)

Country Link
EP (1) EP0695715B1 (fr)
JP (1) JP2786409B2 (fr)
AT (1) ATE152425T1 (fr)
DE (2) DE4427897C1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4436583A1 (de) * 1994-10-13 1996-04-18 Heidelberger Druckmasch Ag Vorrichtung zur Qualitätskontrolle von bedrucktem Papier in einer Rotationsdruckmaschine
DE19547546A1 (de) * 1995-12-20 1997-07-03 Heidelberger Druckmasch Ag Vorrichtung zur Einwirkung auf Bogen in einem Bogenausleger
DE19604562C2 (de) * 1996-02-08 2002-11-21 Heidelberger Druckmasch Ag Vorrichtung zum Leiten von Bogen
DE19964404B4 (de) * 1998-04-27 2007-02-08 Heidelberger Druckmaschinen Ag Bogendruckmaschine
DE29817879U1 (de) 1998-10-07 1998-12-17 MAN Roland Druckmaschinen AG, 63075 Offenbach Bogenführungseinrichtung für einseitig oder beidseitig bedruckte Bogen in einer Druckmaschine
DE102004007599A1 (de) 2003-03-27 2004-10-07 Heidelberger Druckmaschinen Ag Bogen verarbeitende Maschine mit einem Bogenentroller
JP4369357B2 (ja) 2004-12-21 2009-11-18 株式会社小森コーポレーション シート状物案内装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD225409A1 (de) * 1984-06-08 1985-07-31 Polygraph Leipzig Einrichtung in bogenauslegern
DD225411B1 (de) * 1984-06-08 1989-06-21 Polygraph Leipzig Einrichtung zur einwirkung auf den bogen in bogenauslegern
DE4140253A1 (de) * 1991-12-06 1993-06-09 Heidelberger Druckmaschinen Ag, 6900 Heidelberg, De Bogenleitvorrichtung im auslegebereich einer bogendruckmaschine
DE4201411A1 (de) * 1992-01-21 1993-07-22 Blohm Voss Ag Niederhalter an behandlungsanlagen, insbesondere stanzmaschinen, fuer duenne flache gegenstaende, insbesondere boegen aus papier

Also Published As

Publication number Publication date
JPH0859014A (ja) 1996-03-05
EP0695715A1 (fr) 1996-02-07
DE4427897C1 (de) 1995-09-28
JP2786409B2 (ja) 1998-08-13
ATE152425T1 (de) 1997-05-15
DE59500206D1 (de) 1997-06-05

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