EP1314555B1 - Système de guidage de feuilles avec une surface de guidage dans une machine à imprimer - Google Patents

Système de guidage de feuilles avec une surface de guidage dans une machine à imprimer Download PDF

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Publication number
EP1314555B1
EP1314555B1 EP02025136A EP02025136A EP1314555B1 EP 1314555 B1 EP1314555 B1 EP 1314555B1 EP 02025136 A EP02025136 A EP 02025136A EP 02025136 A EP02025136 A EP 02025136A EP 1314555 B1 EP1314555 B1 EP 1314555B1
Authority
EP
European Patent Office
Prior art keywords
sheet
control device
cylinder
sheet control
guiding
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.)
Revoked
Application number
EP02025136A
Other languages
German (de)
English (en)
Other versions
EP1314555A1 (fr
Inventor
Hendrikus Beaumont
Bernhard Graziel
Frank Seidel
Peter Dr. Wulf
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7706760&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1314555(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP1314555A1 publication Critical patent/EP1314555A1/fr
Application granted granted Critical
Publication of EP1314555B1 publication Critical patent/EP1314555B1/fr
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • B41F21/10—Combinations of transfer drums and grippers
    • B41F21/102—Combinations of transfer drums and grippers with pneumatic means

Definitions

  • the invention relates to a sheet guiding device with a guide surface in a printing press according to the preamble of claim 1.
  • a sheet guide of this kind is for sheet guiding cylinder DE 44 30 105 A1 to support the sheet transport in the immediate vicinity of a sheet-guiding transfer cylinder and a transfer cylinder downstream of the sheet-guiding printing cylinder known.
  • Below the transfer area (tangent point of transfer cylinder and impression cylinder) is a direct negative pressure between the sheet and pressure cylinder generating guide is arranged.
  • the guide specifically contains a sheet smoother with at least one pneumatically operated squeegee.
  • a pneumatically or mechanically operable sheet guiding device is assigned to the impression cylinder in front of the printing zone.
  • a sheet guiding device is made DE 298 17 317 U1 as a comb-shaped sheet guiding device between the transfer area of two gripper systems of sheet guiding cylinders and an adjacent sheet guiding device known.
  • the comb-shaped sheet guide device has a guide surface, which is aligned with the guide surface of the adjacent sheet guiding device.
  • the comb-shaped sheet guiding device is operable without Blas Kunststoffunterstützung.
  • the comb-shaped sheet guiding device is arranged downstream of a transfer area of two gripper systems in the conveying direction of the printing material in the sheet exit or upstream of a transfer area of two gripper systems in the conveying direction of the printing material in the sheet.
  • the invention has for its object to provide a sheet guiding device of the type described above, which ensures in particular on a printing cylinder with associated printing / coating the smooth support of a sheet already from one of these pressure / Lackierzone upstream transfer area and improved bowing along a guide surface the sheet guiding allowed in the arch entrance before the transfer area.
  • the invention relates to a comb-shaped sheet guide with a pneumatically actuated guide surface, which is associated with the transfer area of two gripper systems.
  • the gripper systems are arranged on a respective sheet guiding cylinder and / or a circulating chain system.
  • a first advantage of the sheet guiding device is that, for example, a sheet guided by a transfer cylinder in the gripper closure is transferred on its predetermined conveying plane to the gripper system of a downstream printing cylinder.
  • a guided by a gripper system of a circulating chain system arc on its predetermined conveying plane to a Gripper system passed to a downstream pressure cylinder.
  • the sheet guiding device according to the invention is designed as a comb-shaped sheet guiding device and whose prongs - without causing damage in particular in the region of the sheet trailing edge - protrude as close as possible to the transfer region of two gripper systems.
  • the comb-shaped sheet guiding device generates a suction air flow by means of a switchable, preferably controllable pneumatic system.
  • the suction air flow forms below the transfer region of two gripper systems a negative pressure area, so that the sheet, preferably from the tangent point, rests smoothly on the printing cylinder.
  • the air cushion located between the sheet and the lateral surface of the printing cylinder and the ambient air below the transfer area is noticeably reduced.
  • An additional reduction of ambient air can be achieved by the tines of the comb-shaped sheet guiding device upstream of a suction in the conveying direction of the sheet material.
  • the squeegee is integrated in an upstream sheet guiding or at the end of this sheet guiding device (in the conveying direction in front of the comb-shaped sheet guide) can be arranged.
  • a further advantage is that in a by print zone (pressure cylinder and blanket cylinder or forme cylinder) and transfer area of two gripper systems (tangent point of example sheet-guiding cylinders) arc defined before the printing / coating of the printing cylinder pneumatically or mechanically operable sheet guiding device is associated with the printing cylinder.
  • pneumatically or mechanically operable sheet guiding device is associated with the printing cylinder.
  • a sheet-fed rotary printing machine consists of several printing units 1 and at least one coating unit 8, which are arranged in the conveying direction 12 in a row construction.
  • the coating unit 8 is in the conveying direction 12, a boom 9 with rotating chain systems 14, which transport the sheet 20 in the gripper closure and store it on a delivery pile, downstream.
  • Each printing unit 1 is formed of a single-sized plate cylinder 2, a single-sized blanket cylinder 3 and a double-sized impression cylinder 4.
  • Each plate cylinder 2 is assigned an inking unit and possibly a dampening unit.
  • the coating unit 8 has a metering system 7, for example a chambered doctor blade with a screened application roller, which is in functional connection with a forme cylinder 6.
  • the form cylinder 6 is in turn assigned a pressure cylinder 4.
  • Form cylinder 6 and blanket cylinder 3 form with the associated sheet-guiding printing cylinders 4 each have a printing / coating 16.
  • a transfer cylinder 5 can be substituted by a bow-guiding turning device 10 according to the principle of the single-drum or three-drum turn.
  • the sheet-guiding cylinders 4, 5, the turning device 10 and the chain systems 14 have u.a. Gripper systems 30, 31 with transfer areas 19 for the sheet transport in the conveying direction 12 on.
  • the sheet-guiding transfer cylinders 5, turning devices 10 and the chain systems 14 are associated sheet guiding devices 11, preferably in a modular arrangement, adjacent to a predetermined distance to the predetermined conveying plane.
  • the sheet guiding devices 11 are designed as air supply boxes (flow channels) for guiding the sheets 20 in the predetermined conveying plane with a width and length of a plurality of nozzles 13 having, otherwise closed and the sheet 20 facing guide surface 21.
  • the nozzles 13 are, for example, openings operable with blown air or suction air, e.g. Holes, slots, etc., or are operated on the principle of the aerodynamic paradox.
  • the air supply boxes each have a first pneumatic system 22, which is formed for example by reversible (blown air / suction air) fan.
  • a comb-shaped sheet guiding device 15 is arranged at the end, as close as possible in front of the transfer area 19.
  • the comb-shaped sheet guiding device 15 has an air supply box, which is operable with a second pneumatic system 29 (FIG. 4).
  • a second pneumatic system 29 FIG. 4
  • the tines 17 are arranged at a defined distance from each other and thus form free spaces 18 through which the gripper systems of the downstream printing cylinder 4 (which in this area still no sheet 20) can go through.
  • the prongs 17 are coupled via the air supply box (sheet guiding device 15) to the second pneumatic system 29 and have first and second openings 23, 24.
  • the comb-shaped sheet guiding device 15 with openings 23, 24 and prongs 17 on the channel side with the air supply box (flow channel) of the sheet guiding device 11 is coupled, so that the air supply of the sheet guiding devices 11, 15 with the first pneumatic system 22 (alternatively the second pneumatic system 29) is jointly feasible.
  • the comb-shaped sheet guiding device 15 has a guide surface 21 which is arranged in alignment with the guide surface 21 of the sheet guiding device 11 in the direction of curvature thereof.
  • the sheet guiding devices 11, 15 are modular (for example, mounted on impact) or arranged integrated into a component executable to provide a continuous guide surface 21.
  • the tines 17 with openings 23, 24 fulfill two functions.
  • the prongs 17 are formed with the second openings 24, preferably bent at an over the format width continuous edge or curvature (line 25), from the plane of the guide surface 21 toward the downstream sheet-guiding printing cylinder 4, so that the second Openings 24 are directed substantially to the transfer area 19.
  • additional openings 32 can be integrated into the tines 17 at the rear in the direction of the subsequent impression cylinder 4 (FIG. 4) in order to evacuate or reduce the drag flow transported by the pressure cylinder 4 and the ambient air still remaining below the transfer region 19.
  • the openings 24 and / or the openings 32 are preferably larger than the openings 23 are formed.
  • each printing cylinder 4 is assigned a pneumatically actuated and / or a mechanically acting sheet guiding device 27 adjacent thereto.
  • the sheet guiding device 27 is preferably designed as Druckzylinderblasvortechnik which, for example, according to DE 197 53 089 A1 is executable.
  • one or more blowpipes can be arranged, which extend in Zylinderachsplatz at least over the format width and whose Blas Kunststoffströmung are directed at least on the guided from the sheet-guiding printing cylinder 4 sheet 20.
  • a suction strip 26 can additionally be integrated into the guide surface 21 in the sheet exit at the end of the sheet guiding device 11.
  • the squeegee 26 is assigned to the sheet guide 11, alternatively, an assignment to the comb-shaped sheet guide 15 can be realized.
  • the squeegee 26 extends over the max. Format width of the guide surface 21 and is preferably coupled to a separate suction air source 28.
  • the squeegee 26 can also be coupled to the pneumatic system 29 of the tines 17 (comb-shaped sheet guiding device 15).
  • the squeegee 26 is straight, i. arranged at right angles or obliquely to the conveying direction 12 over the format width.
  • an arrow-shaped arrangement of the squeegee 26 can be realized in order to sweep the sheet 20 in the conveying direction 12.
  • the squeegee 26 causes in the direction transfer cylinder 5 a negative pressure between the sheet 20 and the guide surface 21 by the ambient air by means of Saugluftmaschine 28 (or when coupled by means of pneumatic system 29) is evacuated. In addition, the ambient air still present in the area of the tines 17 and below the transfer area 19 is also evacuated.
  • the squeegee 26 is integrated in a sheet smoother arranged in the guide surface 21, so that in addition to the evacuation of ambient air, the sheet 20 is additionally pulled over the wavy curved contour.
  • the in the gripper closure (sheet-guiding cylinder 4 or 5) fixed sheet 20 is subject to the deconstruction and is stretched contrary to the conveying direction 12.
  • the mode of action is as follows: The sheet 20 guided in the gripper closure (gripper system 31) by the rotating transfer cylinder 5 is transferred in the transfer region 19 to the gripper system 30 of the rotating, downstream impression cylinder 4.
  • a suction air flow is generated below the transfer area 19 in the arched at least at the openings 23, 24, in particular at the openings 24, the prongs 17, so that a negative pressure area between the sheet 20 and the sheet-guiding cylinders 4, 5 is present.
  • the sheet 20 is guided in the direction of the comb-shaped sheet guiding device 15 and then smoothly guided on the sheet guiding cylinder 4 already from the transfer area 19.
  • a suction air flow is generated by the suction strip 26 arranged upstream of the tines 17 in the conveying direction 12 so that there is a negative pressure area between the sheet 20 guided on the transfer cylinder 5 and the guide surface 21 of the adjacent sheet guiding device 11.
  • the sheet 20 is pulled in the direction of the guide surface 21 and guided in the conveying direction 12 floating.
  • the suction strip 26 is additionally integrated in a sheet smoother, so that the sheet 20 is additionally stretched counter to its conveying direction 12.
  • the sheet 20 guided in the gripper closure on the printing cylinder 4 is guided in the area defined by transfer region 19 and printing / coating zone 16 by means of a sheet guiding device 27.

Landscapes

  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Discharge By Other Means (AREA)

Claims (6)

  1. Dispositif de guidage de feuille avec une surface de guidage dans une presse d'imprimerie, lequel a une zone de remise formée par deux systèmes de pince (30, 31) fixés sur des cylindres (4, 5) guidant les feuilles, avec un dispositif de guidage de feuille (27) disposé entre la zone de remise et une zone d'impression (16) adjacent à un cylindre d'impression (4) conduisant les feuilles,
    moyennant
    quoi en-dessous de la zone de remise (19) placée avant la zone d'impression, un dispositif de guidage de feuille (15) en forme de peigne présentant une pluralité de dents (17) espacées les unes des autres est disposé sur la largeur de format,
    caractérisé en
    ce que ce dispositif de guidage de feuille (15) présente un caisson d'alimentation en air et une surface de guidage (21) tournée contre la feuille (20) et est couplé à un système pneumatique (29),
    que les dents (17) présentent des première et deuxième ouvertures (23, 24) couplées avec le caisson d'alimentation en air, que les premières ouvertures (23) sont intégrées dans la surface de guidage (21)
    et que les deuxièmes ouvertures (24) sont disposées en étant coudées depuis le plan de la surface de guidage (21) en direction d'un cylindre d'impression (4) placé en aval dans le sens d'avancée, de façon à ce que les deuxièmes ouvertures (24) soient alignées au moins sur la zone de remise (19).
  2. Dispositif de guidage de feuille,
    caractérisé en
    ce qu'une nervure d'aspiration (26), intégrée dans la surface de guidage (21), s'étendant sur la largeur de format et couplée à une source d'air aspiré (28)dans le sens d'avancée (12) est disposée avant les dents (17).
  3. Dispositif de guidage de feuille selon la revendication 2,
    caractérisé en
    ce que la nervure d'aspiration (26) est intégrée dans un lissoir de feuilles intégré dans la surface de guidage (21).
  4. Dispositif de guidage de feuille selon la revendication 1 ou 2,
    caractérisé en
    ce que les dents (17) présentent des ouvertures supplémentaires (32) en direction du cylindre d'impression (4) guidant les feuilles disposé en aval.
  5. Dispositif de guidage de feuille selon la revendication 2,
    caractérisé en
    ce que le système pneumatique (29) du dispositif de guidage de feuilles (15) en forme de peigne est couplé à la source d'air aspiré (28).
  6. Dispositif de guidage de feuille selon la revendication 1 ou 2,
    caractérisé en
    ce que le système pneumatique (29) du dispositif de guidage de feuilles (15) en forme de peigne est couplé au système pneumatique (22) d'un dispositif de guidage de feuilles (11) placé en amont dans le sens d'avancée (12) et les dispositifs de guidage de feuilles (11, 15) présentent un canal d'alimentation en air commun.
EP02025136A 2001-11-23 2002-11-09 Système de guidage de feuilles avec une surface de guidage dans une machine à imprimer Revoked EP1314555B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10157566A DE10157566B4 (de) 2001-11-23 2001-11-23 Bogenleiteinrichtung mit einer Führungsfläche in einer Druckmaschine
DE10157566 2001-11-23

Publications (2)

Publication Number Publication Date
EP1314555A1 EP1314555A1 (fr) 2003-05-28
EP1314555B1 true EP1314555B1 (fr) 2007-09-05

Family

ID=7706760

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02025136A Revoked EP1314555B1 (fr) 2001-11-23 2002-11-09 Système de guidage de feuilles avec une surface de guidage dans une machine à imprimer

Country Status (4)

Country Link
EP (1) EP1314555B1 (fr)
JP (1) JP3703796B2 (fr)
AT (1) ATE372212T1 (fr)
DE (2) DE10157566B4 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1352738A3 (fr) 2002-04-08 2004-08-04 Komori Corporation Appareil de guidage de feuilles
JP2005335364A (ja) 2004-04-26 2005-12-08 Dainippon Screen Mfg Co Ltd 印刷装置
DE102004021730B4 (de) * 2004-04-30 2011-08-18 KOENIG & BAUER Aktiengesellschaft, 97080 Bogenführungseinrichtung in Druckmaschinen
DE102004058377A1 (de) 2004-12-03 2006-06-14 Man Roland Druckmaschinen Ag Bogenleiteinrichtung für eine bogenverarbeitende Maschine, insbesondere Rotationsbogendruckmaschine
JP2008247549A (ja) * 2007-03-30 2008-10-16 Komori Corp シート状物の案内装置
JP2009220400A (ja) * 2008-03-17 2009-10-01 Ryobi Ltd 印刷機における枚葉紙受渡し装置
JP5202054B2 (ja) * 2008-03-17 2013-06-05 リョービ株式会社 印刷機における枚葉紙受渡し装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4430105C2 (de) * 1994-08-25 1996-07-04 Roland Man Druckmasch Verfahren und Vorrichtung zur flächigen Führung von im Greiferschluß fixierten Bogen auf einer gekrümmten Oberfläche eines Zylinders einer Roationsdruckmaschine
DE19848441C2 (de) * 1997-12-08 2000-05-31 Koenig & Bauer Ag Verfahren und Vorrichtung zum Wenden von Bogen mit einer Bogenleiteinrichtung
DE19809876C2 (de) * 1998-03-07 2002-06-06 Koenig & Bauer Ag Leitrakelspitze an Leitrakeln in Bogenrotationsdruckmaschinen
DE19814006C1 (de) * 1998-03-28 1999-06-02 Koenig & Bauer Ag Verfahren und Einrichtung zur Bogenführung an einer Leitrakel in Druckmaschinen
DE29817317U1 (de) * 1998-09-26 1998-11-19 MAN Roland Druckmaschinen AG, 63075 Offenbach Bogenführungseinrichtung mit einer Führungsfläche in einer Druckmaschine
ES2218084T3 (es) * 2000-02-10 2004-11-16 Mitsubishi Heavy Industries, Ltd. Unidad de guiado de hojas en una prensa de alimentacion de hojas.

Also Published As

Publication number Publication date
ATE372212T1 (de) 2007-09-15
DE10157566B4 (de) 2006-10-19
DE10157566A1 (de) 2003-06-12
JP2003192182A (ja) 2003-07-09
JP3703796B2 (ja) 2005-10-05
EP1314555A1 (fr) 2003-05-28
DE50210847D1 (de) 2007-10-18

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