EP0976554B1 - Procédé pour transférer le bord arrière d'une feuille d'un cylindre dans une machine pour imprimer des feuilles - Google Patents

Procédé pour transférer le bord arrière d'une feuille d'un cylindre dans une machine pour imprimer des feuilles Download PDF

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Publication number
EP0976554B1
EP0976554B1 EP99112547A EP99112547A EP0976554B1 EP 0976554 B1 EP0976554 B1 EP 0976554B1 EP 99112547 A EP99112547 A EP 99112547A EP 99112547 A EP99112547 A EP 99112547A EP 0976554 B1 EP0976554 B1 EP 0976554B1
Authority
EP
European Patent Office
Prior art keywords
sheet
gear mechanism
rocker
trailing edge
cylinder
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
EP99112547A
Other languages
German (de)
English (en)
Other versions
EP0976554A1 (fr
Inventor
Willi Becker
Andreas Dr. Fricke
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.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger 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 Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP0976554A1 publication Critical patent/EP0976554A1/fr
Application granted granted Critical
Publication of EP0976554B1 publication Critical patent/EP0976554B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B41F21/10—Combinations of transfer drums and grippers
    • B41F21/106—Combinations of transfer drums and grippers for reversing sheets, e.g. for perfecting machine
    • B41F21/108—Combinations of transfer drums and grippers for reversing sheets, e.g. for perfecting machine with pneumatic means

Definitions

  • Gear device for taking over a trailing edge of a sheet from an upstream cylinder a sheet-fed rotary printing machine and transferring the trailing edge of the sheet to one Gripper system of a downstream drum.
  • the DD-WP 110 452, DE 196 17 542 A1, DE 196 17 543 A1 and DE 196 17 544 C1 show four- and five-link gearboxes for guiding the suction cups. These gears are however, it is not able to remove the tangent from the previous one Cylinder is still a targeted one, especially with the four-bar linkage
  • the sheet can be tightened or compressed after the sheet has been removed.
  • the invention is therefore based on the object of creating a transmission device by means of which is a bow at the rear edge of an upstream cylinder for the purpose Turn can be taken over and jerk-free to a downstream cylinder can be handed over, the trailing edge of the sheet up to a fixed gripper closure tangent to the front arch area adjacent to the upstream cylinder to be performed and a gear device for performing the method create.
  • a sheet-fed rotary printing machine has u. a. a sheet 1 transporting Cylinder 2, e.g. B. printing cylinder on which the sheet 1 further transports Cylinder 3, e.g. B. is directly upstream of a turning drum.
  • a lifting means 4 to Detect the trailing edge 6, z. B. a suction pad is pivotable on the Reversing drum 3 arranged. To take over the sheet 1, it pivots out of the Periphery of the turning drum 3 and sets in the edge area Trailing edge 6 on sheet 1.
  • the suction pad 4 is one at the end Suction cup holder 7 attached.
  • the suction cup 7 consists of an angular coupling with a first movable hinge point A in the area of the angle and a second movable joint point B at the end of the paddock, or the suction cup 7.
  • a two-stroke system at joint A consisting of a coupling 8 and a rocker 9 connected therewith at the pivot point C.
  • the swing arm 9 has two arms 9a, 9b and is at the junction of the two arms pivoted in a bearing point L9 on the turning drum 3.
  • a cam roller 11 is arranged, which is arranged with a stationary one Control cam 12 is in operative contact.
  • a second rocker 14 is attached, the two Has arms 14a, 14b.
  • a pivotable bearing point L 14 is provided on the turning drum 3.
  • a cam roller 16 is arranged, which with a stationary control cam 17th is in active contact.
  • the Swing arm 19 has two arms 19a, 19b and is at the junction of the two Arms pivoted about a bearing point L 19 of the turning drum 3.
  • On hers Arm 19b carries the rocker 19 a cam roller 21, which with a stationary Control cam 22 is in operative contact.
  • the rockers 9, 14, 19 are pivoted about the bearing points L9, L14, L19.
  • the suction cup 7 is pivoted about the coupling 8 and 13 such that the suction pad 4 follows the periphery of the printing cylinder 2 after approaching the pressure cylinder 2 until the trailing edge 6 is securely gripped by the suction pad 4.
  • the suction gripper 4 is pivoted into the periphery 3a of the turning drum 3 on a tangent-constant guideway.
  • Constant tangent means that an imaginary extension of the holding surface of the suction pad 4 and thus also the exposed rear arch area is always oriented tangentially to the upstream printing cylinder 2, with a tangent point T 1 moving counterclockwise on the circumference of the printing cylinder 2 with the transfer path of the trailing sheet edge 6 ,
  • the suction cup 4 fastened on the suction cup support 7 is brought up to the pressure cylinder 2 and, at the beginning of the sheet suction, has the same speed and acceleration state as the sheet rear edge 6, which it follows exactly during the entire suction process. Then the sheet begins to be removed, the suction surface with the exposed sheet area always lying on a tangent to the surface of the impression cylinder. During the removal, the sheet can be tightened by guiding the suction pad 4 on the tangent in the direction of the sheet trailing edge 6 and sliding it along the sheet. To transfer the trailing edge to the reversible gripper 25, the suction device 4 is brought to the state of movement of the gripper support 26 of the reversible gripper 25 without jolts and jerks.
  • Suction cup 4 and trailing edge 6 of the sheet are finally in relative rest to the turning drum 3 or to the turning gripper 25.
  • the arm 19a of the rocker 19 is provided with a toothed segment 23 which is in engagement with a toothed segment 24 which is arranged at the end of the coupling 13.
  • the articulation point D of the rocker 14 is located in the center of the tooth segment 24.
  • the rockers 14 and 19 have a common bearing point L z , which in turn is identical to the center of the tooth segment 23.
  • the coupling 18 of the first embodiment is saved.
  • the gear is through on a single cutting plane described the turning drum.
  • this can be done over the axial length of the cylinder or the drum can be arranged several times.

Landscapes

  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)

Claims (8)

  1. Mécanisme sur un tambour de renversement d'une machine à imprimer rotative à feuilles, destinée à guider un élément de retenue pour le bord arrière d'une feuille,
    caractérisé en ce que, pour la production d'une trajectoire de l'élément de retenue (4), sont prévus trois systèmes d'entraínement couplés entre, eux, commandés indépendamment l'un de l'autre, et en ce que ces systèmes sont en contact actif avec des cames de commande (12; 17 ; 22) disposées fixes.
  2. Mécanisme selon la revendication 1,
    caractérisé en ce que chaque système d'entraínement comprend un levier à galet constitué par un bras oscillant (9 ; 14 ; 19) qui est monté pivotant sur le tambour de retournement (3).
  3. Mécanisme selon la revendication 2,
    caractérisé en ce que les bras oscillants (9 ; 14 ; 19) présentent des galets de commande (11 ; 16 ; 21) qui sont en contact actif avec les cames de commande (12 ; 17 ; 22) montées fixes.
  4. Mécanisme selon la revendication 3,
    caractérisé en ce que le support de ventouse (7) est guidé par un élément à deux coups (8 ; 9) et une biellette (13).
  5. Mécanisme selon la revendication 4,
    caractérisé en ce que la biellette (13) est munie de trois articulations (B, D, E), chaque articulation (B ; D ; E) étant reliée à un des systèmes d'entraínement.
  6. Mécanisme selon la revendication 5,
    caractérisé en ce que cette biellette (13) est guidée par un élément à deux coups (18, 19) et le bras oscillant (14) est guidé et est relié au support de , ventouse (7) dans l'articulation (B).
  7. Mécanisme selon la revendication 6,
    caractérisé en ce que le bras oscillant (19) présente un secteur denté (23) qui est en engrênement avec un secteur denté (24) de la biellette (13) et en ce que le bras oscillant (14) et le bras oscillant (19) présentent un point de portée commun (Lz).
  8. Mécanisme selon une des revendications précédentes,
    caractérisé en ce que le mécanisme est agencé en plusieurs exemplaires sur la longueur axiale du cylindre ou du tambour.
EP99112547A 1998-07-28 1999-07-01 Procédé pour transférer le bord arrière d'une feuille d'un cylindre dans une machine pour imprimer des feuilles Expired - Lifetime EP0976554B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833903A DE19833903A1 (de) 1998-07-28 1998-07-28 Verfahren zur Übernahme einer Bogenhinterkante von einem vorgeordneten Zylinder einer Bogenrotationsdruckmaschine
DE19833903 1998-07-28

Publications (2)

Publication Number Publication Date
EP0976554A1 EP0976554A1 (fr) 2000-02-02
EP0976554B1 true EP0976554B1 (fr) 2003-09-24

Family

ID=7875549

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99112547A Expired - Lifetime EP0976554B1 (fr) 1998-07-28 1999-07-01 Procédé pour transférer le bord arrière d'une feuille d'un cylindre dans une machine pour imprimer des feuilles

Country Status (8)

Country Link
US (1) US6401610B1 (fr)
EP (1) EP0976554B1 (fr)
JP (1) JP2000043239A (fr)
CN (1) CN1131779C (fr)
CZ (1) CZ293398B6 (fr)
DE (2) DE19833903A1 (fr)
HK (1) HK1022872A1 (fr)
RU (1) RU2244629C2 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10122227B4 (de) * 2001-05-08 2012-03-01 Koenig & Bauer Aktiengesellschaft Speichertrommel in Wendeeinrichtungen von Bogendruckmaschinen
JP4106249B2 (ja) 2001-07-30 2008-06-25 ハイデルベルガー ドルツクマシーネン アクチエンゲゼルシヤフト シート加工機械においてシート形の材料を裏返す装置
DE10239398A1 (de) 2001-09-25 2003-04-10 Heidelberger Druckmasch Ag Vorrichtung zur Übernahme einer Bogenhinterkante von einem vorgeordneten Zylinder und zur Übergabe an ein Greifersystem, insbesondere in Bogenrotationsdruckmaschinen
DE10253788A1 (de) 2001-12-10 2003-06-18 Heidelberger Druckmasch Ag Vorrichtung zur Zufuhr von Saugluft oder Blasluft in einer bogenverarbeitenden Maschine
DE10315193A1 (de) * 2002-04-18 2003-10-30 Heidelberger Druckmasch Ag Gegendruckzylinder in einer Wendeeinrichtung einer bogenverarbeitenden Maschine
US7448625B2 (en) * 2004-08-30 2008-11-11 Heidelberger Druckmaschinen Ag Apparatus for conveying a sheet through a printing machine with radially moving suction grippers
DE102005046097A1 (de) * 2005-09-27 2007-04-05 Heidelberger Druckmaschinen Ag Bewegbare Greiferbrücke
US20070235925A1 (en) * 2006-03-31 2007-10-11 Xerox Corporation Constant lead edge paper inverter system
DE102007061556B4 (de) * 2007-12-18 2011-06-09 Kba-Metronic Aktiengesellschaft Transportzylinder, mit beweglicher Greifervorrichtung und Verfahren zum Transportieren von Bögen
JP2013184758A (ja) * 2012-03-06 2013-09-19 Fuji Xerox Co Ltd 搬送装置、転写装置、画像形成装置
JP6178598B2 (ja) * 2012-04-24 2017-08-09 株式会社小森コーポレーション 印刷装置
JP2013241265A (ja) * 2012-04-25 2013-12-05 Komori Corp シート反転装置
CN104555503B (zh) * 2013-10-23 2017-10-31 海德堡印刷机械股份公司 用于在页张的前缘处分离页张的方法和装置
CN105774217B (zh) * 2016-05-05 2018-01-05 浙江劲豹机械有限公司 全自动丝网印刷机的接纸排印刷装置
TWI607887B (zh) * 2016-12-01 2017-12-11 東遠精技工業股份有限公司 滾筒印刷機

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE110452C (fr)
DD110451A1 (fr) * 1974-03-21 1974-12-20
DD110452A1 (fr) * 1974-03-21 1974-12-20
US3992993A (en) * 1975-03-25 1976-11-23 Veb Polygraph Leipzig Kombinat Fur Polygraphische Maschinen Und Ausrustungen Sheet transfer system for a printing machine
DE2557866B2 (de) * 1975-12-22 1977-11-03 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Rotierende vorgreifertrommel
JPS53135710A (en) * 1977-04-30 1978-11-27 Raes Karl Printing cylinder unit
US4132403A (en) * 1977-07-07 1979-01-02 Veb Polygraph Leipzig Kombinat Fuer Polygraphische Maschinen Und Ausruestungen Sheet transfer apparatus for printing machine
DE2861397D1 (en) * 1978-06-26 1982-01-28 Heidelberger Druckmasch Ag Camless drive for an oscillating front gripper
DD142694A1 (de) * 1979-04-02 1980-07-09 Guenter Weisbach Bogenrotationsdruckmaschine mit einem von unten arbeitenden vorgreifer
CH641112A5 (de) * 1979-10-17 1984-02-15 Grapha Holding Ag Anleger fuer druckbogen.
DE3621384A1 (de) * 1986-06-26 1988-01-14 Roland Man Druckmasch Vorrichtung zum antrieb eines schwingenden vorgreifers einer druckmaschine
DE4012497A1 (de) * 1990-04-19 1991-10-24 Roland Man Druckmasch Saugersteuerung in bogenuebergabetrommeln in mehrfarben-bogendruckmaschinen
DE4012498C1 (fr) * 1990-04-19 1991-11-14 Man Roland Druckmaschinen Ag, 6050 Offenbach, De
DE4233846A1 (de) * 1992-10-08 1994-04-14 Heidelberger Druckmasch Ag Vorgreifer einer Bogendruckmaschine
DE4330392A1 (de) * 1993-09-08 1995-03-16 Heidelberger Druckmasch Ag Schwingender Vorgreifer einer Bogendruckmaschine
DE19617543C2 (de) * 1996-05-02 2000-12-21 Koenig & Bauer Ag Anordnung und Antrieb von Bogenhaltesystemen in Wendetrommeln
DE19617544C1 (de) * 1996-05-02 1997-04-30 Kba Planeta Ag Wendetrommel mit einem Antrieb für einen Wendegreifer
DE19617542C2 (de) * 1996-05-02 1999-11-18 Koenig & Bauer Ag Bogenwendegreifersystem in Wendetrommeln von Druckmaschinen
DE19617493C2 (de) * 1996-05-02 1999-02-18 Kba Planeta Ag Saugersteuerung
DE19617545C1 (de) * 1996-05-02 1997-04-30 Kba Planeta Ag Saugerführungsgetriebe
DE19617491C1 (de) * 1996-05-02 1997-05-07 Kba Planeta Ag Antrieb für ein Saugersystem in Wendetrommeln

Also Published As

Publication number Publication date
CZ171799A3 (cs) 2000-02-16
CZ293398B6 (cs) 2004-04-14
DE19833903A1 (de) 2000-02-03
DE59907088D1 (de) 2003-10-30
US6401610B1 (en) 2002-06-11
JP2000043239A (ja) 2000-02-15
EP0976554A1 (fr) 2000-02-02
RU2244629C2 (ru) 2005-01-20
CN1131779C (zh) 2003-12-24
HK1022872A1 (en) 2000-08-25
CN1243063A (zh) 2000-02-02

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