EP0958919A1 - Dispositif de préhension par dépression dans un dispositif de retournement d'une machine d'impression rotative à feuilles - Google Patents

Dispositif de préhension par dépression dans un dispositif de retournement d'une machine d'impression rotative à feuilles Download PDF

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Publication number
EP0958919A1
EP0958919A1 EP99107376A EP99107376A EP0958919A1 EP 0958919 A1 EP0958919 A1 EP 0958919A1 EP 99107376 A EP99107376 A EP 99107376A EP 99107376 A EP99107376 A EP 99107376A EP 0958919 A1 EP0958919 A1 EP 0958919A1
Authority
EP
European Patent Office
Prior art keywords
sheet
suction
gripper
guiding cylinder
downstream
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.)
Granted
Application number
EP99107376A
Other languages
German (de)
English (en)
Other versions
EP0958919B1 (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 EP0958919A1 publication Critical patent/EP0958919A1/fr
Application granted granted Critical
Publication of EP0958919B1 publication Critical patent/EP0958919B1/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

  • the invention relates to a suction pad in a turning device Sheet-fed rotary printing machine according to the preamble of claim 1.
  • From DE-OS 38 29 626 is a sheet-fed rotary printing press with a Turning device known, in which a suction pad in the perfecting mode the periphery of a cylinder downstream of an impression cylinder to the Circumferential surface of the impression cylinder is pivoted where it traces the rear edge of the grips to be turned and this before passing the gripper centers between transferred the two cylinders to the periphery of the downstream cylinder.
  • a suction pad in the perfecting mode the periphery of a cylinder downstream of an impression cylinder to the Circumferential surface of the impression cylinder is pivoted where it traces the rear edge of the grips to be turned and this before passing the gripper centers between transferred the two cylinders to the periphery of the downstream cylinder.
  • a further generic turning device is known from EP 0 649 742 A1, at of the suction pads taking over the rear edge are designed as rotary suction cups due to their design and weight, however, not or only with great technical effort can be removed from the periphery of the downstream cylinder. As a result, it can be used, in particular, at the production printing speeds customary today in the perfecting mode there are problems with the handover, which contain a passport Impair handover.
  • the object of the invention is to achieve a suction cup in one To create a sheet-fed rotary printing machine, which for Take over the rear edge of the to be turned on a double large Impression cylinder guided sheet from the periphery of the downstream retracts the bow-guiding cylinder and is reliable and reliable when reversing effective axial smoothing of the sheet with simple and inexpensive means enables.
  • a turning device 1 comprises one Sheet-fed rotary printing machine 2 has a downstream sheet-guiding cylinder 4 (Turning drum) on which a suction pad 6 according to the invention is arranged, which for Acquisition of the rear edge 10 of a cylinder 12 that is guiding the sheet upstream guided sheet 14 from the periphery 8 of the downstream sheet-guiding cylinder 4th is pivoted out in a known manner, grips the rear edge 10 of the sheet 14 and feeds the cylinder 4, where the rear edge 10 of the sheet to a gripper device 16th of the cylinder 4 is passed.
  • a suction pad 6 according to the invention
  • a plurality of suction pads 6 Transverse direction across the width of the downstream sheet-guiding cylinder 4 arranged, each of which is located on a pivotable gripper shaft 18 attached bracket 20, at the end of a suction head 22 is arranged.
  • the suction heads 22 of the suction grippers 6 are preferred arranged between grippers 24 of the gripper device 16, which in a known manner associated gripper pads 26 cooperate.
  • 6 devices are arranged on the suction pads, which essentially in radial direction (see arrow 5 in Fig. 3) extending movement of the suction pads 6 at Swinging back or moving back in the direction of the periphery 8 of the downstream convert arc-guiding cylinder 4 into axially directed movements (arrow 28 in FIG. 2), which the trailing edge 10 of the sheet 14 before transfer to the gripper device 16 tension and smooth cylinder 4.
  • the means for Conversion of the radial movement of the suction pads 6 into axial movements by rolling formed in the form of rollers 30a either directly on the suction head 22 of the Suction pad 6 or in the form of rollers 30b rotatable on the holding arm 20 of the same are arranged, as shown schematically in Figs. 2 and 3.
  • the rollers 30a support each other Retraction of the suction heads 22 in the direction of the periphery 8 of the downstream arc-guiding cylinder 4 on inclined support surfaces 32, which in the Fig. 4 shown embodiment of the invention preferably on the Gripper pads 26 of the gripper device 16 are shaped. This will make the Suction heads 22 during the pivoting back movement before gripping the trailing edge 10 of the sheet by the grippers 24 of the gripper device 16 in the axial direction 28 by one predetermined span 34 preferably from the center 33 of the arc 14 in the direction the side edges 36, 38 of the sheet 14 stretched.
  • the Support surfaces 32 an essentially linear dependence of the clamping path 34, whereas in the case of a convex or indicated in Fig. 4 by dashed lines concave configuration of the support surfaces 32 a non-linear dependency ratio of the Span 34 is obtained.
  • the span 34 of the Centerline 33 of the arc increases toward the side edges 36, 38 what achieved, for example, by a different angle of inclination of the support surfaces 32 can be.
  • the Support surfaces 32 are preferably arranged in the area of the gripper pads 26, whereas in the case of the rollers 30b attached directly to the shaft 20 of the suction pads 6 in height of the rollers 30b immediately below the peripheral surface of the downstream one arc-guiding cylinder 4 can be shaped, as shown schematically in Fig. 2nd is indicated.
  • FIG. 5 it can also be provided instead of the rollers 30a, 30b on the suction head 22 or on the holding arm 20 of the To provide suction pads 6 sliding surfaces 31 which interact with the support surfaces 32, an axial movement 28 of the suction heads 22 by one, as previously described Bring span 34.
  • a friction-reducing material for example coated with Teflon.
  • the axial mobility of the Suction pad 6 enables the shaft 20, on which the Suction head 22 is attached, is flexible in the axial direction 28.
  • the shaft 20 For example, be formed as a flexible hollow tube, which, for example, from Can be made of metal or carbon fiber material.
  • the tube can at the same time also an elasticity or flexibility in the radial direction 5, d. H. in the direction have the peripheral surface of the downstream arc-guiding cylinder 4. This will automatically adapt the suction pads 6 according to the invention different paper thicknesses ensured, which ensures the accuracy of the transfer of the Trailing edge 10 and thus the print quality can be further increased.
  • the Suction gripper 6 has a rigid holding arm 240 which is firmly connected to the gripper shaft 218 and on which the suction head 222 via a rigid swivel arm 244 Pivotal point 242 is pivotally attached in the axial direction 28.
  • the rigid one Swivel arm 244 is used, for example, against the force of spring-elastic means 246 in Direction of the associated side edge 36, 38 of the sheet 14, the Return movement of the swivel arm 244 preferably by means of one in the rigid Holding arm 240 screwed adjusting screw 248 is limited.
  • the one with the Support surfaces 232 cooperating rollers 230a or sliding surfaces 230b, 231 are at This embodiment of the invention preferably directly on the suction head 222 arranged. In the same way, however, the roles or Arrange sliding surfaces on the rigid swivel arm 244, as shown by dashed lines in FIG. 6 Lines is indicated.
  • FIGS. 7a and 7b the suction gripper 6 according to the invention via a gripper shaft, not shown pivotable rigid support arm 340 on which the suction head 322 in axial Movable direction 28, for example in one arranged on the holding arm 340 Housing 323 is attached.
  • the suction head 322 against the spring elastic means 346 in the axial direction 28 Support surface 332 pushed, in this embodiment of the invention, the axial Movement of the suction head 322 preferably by a directly on the suction head 322 formed sliding surface 331 is generated, which extends out of the housing 323.
  • Resilient elements 350 may be provided, which in a in Fig. 7a and b schematically indicated radial guide 352 in the housing 323 guided suction head 322 in apply radial direction 5 with a resilient force, the stop to Limitation of the path, for example, directly through the top 354 of Housing 323 can be formed.

Landscapes

  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
EP99107376A 1998-05-18 1999-04-22 Dispositif de préhension par dépression dans un dispositif de retournement d'une machine d'impression rotative à feuilles Expired - Lifetime EP0958919B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19822306A DE19822306A1 (de) 1998-05-18 1998-05-18 Sauggreifer in einer Wendeeinrichtung einer Bogenrotationsdruckmaschine
DE19822306 1998-05-18

Publications (2)

Publication Number Publication Date
EP0958919A1 true EP0958919A1 (fr) 1999-11-24
EP0958919B1 EP0958919B1 (fr) 2002-08-28

Family

ID=7868199

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99107376A Expired - Lifetime EP0958919B1 (fr) 1998-05-18 1999-04-22 Dispositif de préhension par dépression dans un dispositif de retournement d'une machine d'impression rotative à feuilles

Country Status (7)

Country Link
US (1) US6098543A (fr)
EP (1) EP0958919B1 (fr)
JP (1) JPH11342592A (fr)
CN (1) CN1135164C (fr)
CZ (1) CZ120999A3 (fr)
DE (2) DE19822306A1 (fr)
RU (1) RU2169082C2 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6912952B1 (en) * 1998-05-24 2005-07-05 Hewlett-Packard Indigo B.V. Duplex printing system
DE10143098C5 (de) * 2000-11-30 2018-10-25 Heidelberger Druckmaschinen Ag Vorrichtung zum Führen und Übergeben eines Bogens in einer Druckmaschine
JP4567257B2 (ja) 2000-11-30 2010-10-20 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 枚葉紙を処理する機械内で枚葉紙を第１の胴から、直接隣接する第２の胴に、枚葉紙を案内しかつ引き渡す保持エレメントによって案内しかつ引き渡すための装置
DE10253788A1 (de) * 2001-12-10 2003-06-18 Heidelberger Druckmasch Ag Vorrichtung zur Zufuhr von Saugluft oder Blasluft in einer bogenverarbeitenden Maschine
AUPS061402A0 (en) * 2002-02-19 2002-03-14 Tna Australia Pty Limited A device to aid packaging items
DE102007018539B4 (de) * 2006-05-17 2009-12-10 Manroland Ag Verfahren zum Betreiben einer Bogendruckmaschine
CN101177061B (zh) 2006-11-06 2011-01-12 海德堡印刷机械股份公司 用于使页张在输送经过印刷机期间翻转的方法及装置
US9694607B2 (en) * 2015-06-05 2017-07-04 Komori Corporation Sheet-like member holding device of printing press
DE102019204872A1 (de) * 2018-06-07 2019-12-12 Heidelberger Druckmaschinen Ag Verfahren zum Betrieb einer Wendeeinrichtung einer Druckmaschine
CN113895149A (zh) * 2021-10-26 2022-01-07 浙江帝浩科技股份有限公司 一种双面印刷设备的送纸机的翻转装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3036790A1 (de) * 1980-09-30 1982-04-22 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Bogenuebertragungszylinder fuer auf schoen- und widerdruck umstellbare bogenrotationsdruckmaschinen
DE3829626A1 (de) * 1988-09-01 1990-03-15 Roland Man Druckmasch Bogen-rotationsdruckmaschine fuer schoen- und widerdruck
EP0649742A1 (fr) * 1993-10-22 1995-04-26 Heidelberger Druckmaschinen Aktiengesellschaft Machine rotative d'impression recto-verso pour feuilles avec un cylindre d'impression à diamètre double utilisable comme cylindre distributeur

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3644431A1 (de) * 1986-12-24 1988-09-01 Koenig & Bauer Ag Bogengreifervorrichtung in einer rotationsdruckmaschine mit bogengreifern, die in axialer richtung bewegbar sind
DE19524891A1 (de) * 1995-07-08 1997-01-09 Heidelberger Druckmasch Ag Vorrichtung zum seitlichen Ausrichten von Bögen im Anleger einer Bogenrotationsdruckmaschine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3036790A1 (de) * 1980-09-30 1982-04-22 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Bogenuebertragungszylinder fuer auf schoen- und widerdruck umstellbare bogenrotationsdruckmaschinen
DE3829626A1 (de) * 1988-09-01 1990-03-15 Roland Man Druckmasch Bogen-rotationsdruckmaschine fuer schoen- und widerdruck
EP0649742A1 (fr) * 1993-10-22 1995-04-26 Heidelberger Druckmaschinen Aktiengesellschaft Machine rotative d'impression recto-verso pour feuilles avec un cylindre d'impression à diamètre double utilisable comme cylindre distributeur

Also Published As

Publication number Publication date
CN1135164C (zh) 2004-01-21
EP0958919B1 (fr) 2002-08-28
CN1245116A (zh) 2000-02-23
JPH11342592A (ja) 1999-12-14
DE59902441D1 (de) 2002-10-02
CZ120999A3 (cs) 1999-12-15
RU2169082C2 (ru) 2001-06-20
DE19822306A1 (de) 1999-11-25
US6098543A (en) 2000-08-08

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