EP0213397B1 - Federnder Greifer für Bogenrotationsdruckmaschinen - Google Patents

Federnder Greifer für Bogenrotationsdruckmaschinen Download PDF

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Publication number
EP0213397B1
EP0213397B1 EP86110491A EP86110491A EP0213397B1 EP 0213397 B1 EP0213397 B1 EP 0213397B1 EP 86110491 A EP86110491 A EP 86110491A EP 86110491 A EP86110491 A EP 86110491A EP 0213397 B1 EP0213397 B1 EP 0213397B1
Authority
EP
European Patent Office
Prior art keywords
gripper
finger
spring
support
gripper finger
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
Application number
EP86110491A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0213397A2 (de
EP0213397A3 (en
Inventor
Rudolf Raab
Manfred Herold
Peter Hummel
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
Priority to AT86110491T priority Critical patent/ATE44908T1/de
Publication of EP0213397A2 publication Critical patent/EP0213397A2/de
Publication of EP0213397A3 publication Critical patent/EP0213397A3/de
Application granted granted Critical
Publication of EP0213397B1 publication Critical patent/EP0213397B1/de
Expired 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
    • B41F21/104—Gripper details

Definitions

  • the invention relates to a resilient gripper for sheet-fed rotary printing machines according to the preamble of the first claim.
  • resilient grippers are designed in such a way that they can evenly absorb the tension that is exerted on the grippers by the paper. Since a slight pulling out of the paper from the gripper causes doubling or registration problems, one always tries to design the gripper with the maximum holding force. This means that the gripper springs have a very steep characteristic. The bearing clearances of all grippers must also be kept very tight, since the slightest air automatically affects fitting or doubling when closing. This small bearing play inevitably leads to high friction of the grippers at the bearing point, i.e. that part of the closing spring force is consumed in the bearing itself. It also follows from this that the bearings of the gripper shaft must be kept very stable in order to absorb deformation when the grippers close impulsively. A disadvantage of this is the creation of very high mass forces.
  • DD-PS 66 634 From DD-PS 66 634 it is known to support a one-piece gripper lever on a gripper shaft and to adjust its pretensioning force by means of two compression springs.
  • the disadvantage is that the gripper lever loses its statically determined position if the most possible possible compensation of the bearing force is to be achieved. With very high machine speeds and increased pretensioning forces, insufficient centering, e.g. possible due to disturbing vibrations that are introduced into the machine.
  • Another disadvantage is the relatively large radius of inertia and the mass of the vibrating parts for initiating the holding process.
  • a gripper is known in which the axis of the gripper finger joint is pivotally mounted in a swivel joint parallel to the gripper shaft, the axis of the gripper finger joint being located approximately on the straight line extending away from the gripper tip, which is the supporting surface for the gripper tip connects to the axis of the gripper shaft.
  • the geometry shown in FIG. 1 shows that the force exerted by the gripper tip on the gripper support still has a component in the direction of sheet travel. As a result, there is still a risk of the arc shifting, as well as a possible torsion of the gripper shaft under high pretensioning forces, although an improvement over conventional grippers with a circular movement about the gripper shaft axis can be achieved.
  • a vertically closing gripper with a controlled gripper shaft is known from DE-PS 2 030 040.
  • a disadvantage is the frictional control of the gripper shaft relative to the fulcrum of a control lever by means of a guide on the control cam.
  • the additional control effort leads to an increase in the inertial forces of the system vibrating with a large radius of inertia and thus to a reduction in the performance of the printing press.
  • the control cam is heavily soiled, it is no longer possible to guide the second, vertical movement phase exactly.
  • the invention has for its object to give the gripper finger in a gripper of the type mentioned without risk of bulging in the second movement phase a positive movement perpendicular to the gripper pad by means of a straight guide.
  • the advantages of the solution according to the invention are that neither disturbing forces nor vibrations can have an effect in an extended speed range with increased pretensioning forces and overpressures in the direction of sheet travel.
  • the holding effect is improved by precise straight guidance of the vertical closing process, the gripper finger always maintaining its statically determined position and not reacting so sluggishly.
  • FIGS 1 to 3 show the structure of the gripper.
  • a groove 2 is incorporated in a cylinder 1, in which a gripper shaft 3 with a fixed axis is mounted.
  • a clamping piece 4 is clamped on the gripper shaft 3.
  • the stop piece 8 is loosely mounted on the gripper shaft 3 and is limited in its movement by the clamping piece 4 axially and under the action of a compression spring 15 radially by a first cylindrical pin 9 fastened in the clamping piece 4.
  • a hook-shaped gripper finger 11 is supported with its lower end on a second cylindrical pin 10, which is also fastened in the clamping piece 4.
  • the pretensioned hook-shaped gripper finger 11 is movable in a longitudinally movable manner on a guide pin 12 of the stop piece 8 in a ball bushing 13 in a second movement phase, and is supported in a spring-loaded manner by a compression spring 14.
  • the hook-shaped gripper finger 11 is also guided in parallel against rotation in the clamping piece 4 and can be provided with the basic setting parallel to the gripper support 5 by means of the adjusting screw 16.
  • the first cylindrical pin 9 is first released, so that the hook-shaped gripper finger 11 is guided to the gripper pad 5 in the second movement phase, free of play, in a longitudinally movable manner following the rotating movement phase.
  • the second cylinder pin 10 is released at the end of the vertical movement phase as soon as the hook-shaped gripper finger 11 rests on the paper to be gripped on the gripper support 5.
  • the gripper is shown schematically in three different positions in FIGS. From the open position (FIG. 4), the stop piece 8 first strikes the adjusting screw 16 in the strip 7 when the gripper shaft 3 is rotated, the gripper tip being still open about 1 mm. 5 and 6, in a second movement phase, there is a longitudinal movement without play perpendicular to the gripper support 5 of the hook-shaped gripper 11 on the guide pin 12 of the stop piece 8, the cylinder pins 9 and 10 then being released as described until the gripper is completely closed. As a result, a positionally accurate transfer between the cylinder 1 and a second cylinder or a drum is achieved, the hook-shaped gripper finger 11 being guided vertically in the last movement phase with high stability and accuracy.
  • the gripper finger 11 can additionally be supported laterally on the gripper support 5 by means of a support roller 17, which can be adjusted by eccentric mounting in a known manner, in order to maintain the statically determined position of the gripper finger 11 even under the greatest bending stresses.

Landscapes

  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Discharge By Other Means (AREA)
EP86110491A 1985-08-19 1986-07-30 Federnder Greifer für Bogenrotationsdruckmaschinen Expired EP0213397B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86110491T ATE44908T1 (de) 1985-08-19 1986-07-30 Federnder greifer fuer bogenrotationsdruckmaschinen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3529639 1985-08-19
DE19853529639 DE3529639A1 (de) 1985-08-19 1985-08-19 Federnder greifer fuer bogenrotationsdruckmaschinen

Publications (3)

Publication Number Publication Date
EP0213397A2 EP0213397A2 (de) 1987-03-11
EP0213397A3 EP0213397A3 (en) 1987-11-04
EP0213397B1 true EP0213397B1 (de) 1989-07-26

Family

ID=6278838

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86110491A Expired EP0213397B1 (de) 1985-08-19 1986-07-30 Federnder Greifer für Bogenrotationsdruckmaschinen

Country Status (5)

Country Link
US (1) US4718342A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
EP (1) EP0213397B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS6251452A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AT (1) ATE44908T1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE3529639A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009015078A1 (de) 2009-03-31 2010-10-07 Heidelberger Druckmaschinen Ag Verfahren und Vorrichtung zur Greiferausrichtung

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3632768C1 (de) * 1986-09-26 1988-01-14 Roland Man Druckmasch Klemmgreifer fuer Bogenrotationsdruckmaschinen
DE3632769A1 (de) * 1986-09-26 1988-04-07 Roland Man Druckmasch Klemmgreifer fuer bogenrotationsdruckmaschinen
DE3644484A1 (de) * 1986-12-24 1988-07-07 Heidelberger Druckmasch Ag Greifereinrichtung fuer eine druckmaschine
SU1712287A1 (ru) * 1988-02-17 1992-02-15 Издательство "Известия Советов народных депутатов СССР" Захват дл поштучного отбора подаваемой каскадом сфальцованной печатной продукции
DE3821324C2 (de) * 1988-06-24 1994-03-10 Heidelberger Druckmasch Ag Bogengreifer an Bogenrotationsdruckmaschinen
DE3919088A1 (de) * 1989-06-10 1990-12-13 Roland Man Druckmasch Bogengreifer fuer bogenverarbeitende maschinen
DE3921474A1 (de) * 1989-06-30 1991-01-10 Heidelberger Druckmasch Ag Bogengreifereinrichtung fuer bogenrotationsdruckmaschinen
DE4026237C1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1990-08-18 1992-02-06 Man Miller Druckmaschinen Gmbh, 6222 Geisenheim, De
DE4127713C2 (de) * 1991-08-22 1996-03-21 Koenig & Bauer Albert Ag Greifer für Bogenrotationsdruckmaschinen
DE4210327A1 (de) * 1992-03-30 1993-10-07 Koenig & Bauer Ag Bogenwendeeinrichtung in einer Rotationsdruckmaschine
DE4214191A1 (de) * 1992-04-30 1993-11-04 Roland Man Druckmasch Greifer fuer bogendruckmaschinen
DE4306139C2 (de) * 1993-02-27 1996-10-10 Heidelberger Druckmasch Ag Vorrichtung zur Durchführung von Arbeitsschritten in einem Zylinder einer Druckmaschine
DE4317429C2 (de) * 1993-05-26 2001-06-13 Heidelberger Druckmasch Ag Vorrichtung zur drehfesten im Phasenwinkel stufenlos einstellbaren Befestigung eines Greiferanschlages
US5396842A (en) * 1993-09-03 1995-03-14 Halm Industries Co., Inc. Printing press including improved gripper assembly
DE4337578A1 (de) * 1993-11-04 1995-05-11 Roland Man Druckmasch Bogenführende Trommel für Druchmaschinen
FR2744708B1 (fr) * 1996-02-09 1998-04-30 Heidelberg Harris Sa Butee deplacable disposee sur des cylindres de machines rotatives a imprimer sur lesquels passent les produits
DE10336715A1 (de) * 2002-09-06 2004-03-18 Heidelberger Druckmaschinen Ag Greifereinrichtung in einer bogenverarbeitenden Maschine
CN101024328B (zh) * 2006-02-20 2010-12-15 海德堡印刷机械股份公司 用于传送纸张的装置
JP2008142905A (ja) * 2006-12-06 2008-06-26 Shinohara Machinery Co Ltd 枚葉印刷機の爪座機構

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD67992A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) *
DD66634A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) *
US2088862A (en) * 1935-06-15 1937-08-03 Lang Karl Theodor Printing machine
US3007408A (en) * 1958-05-12 1961-11-07 Crabtree & Sons Ltd R Sheet gripper mechanism
DE1265163B (de) * 1965-03-20 1968-04-04 Heidelberger Druckmasch Ag Vorrichtung zum Befestigen einer biegsamen Druckplatte auf dem Formzylinder einer Rotationsdruckmaschine
AT298522B (de) * 1968-02-21 1972-04-15 Polygraph Leipzig Vorrichtung zum klemmen von materialbogen
US3536321A (en) * 1968-06-13 1970-10-27 Planeta Veb Druckmasch Werke Device for clamping sheet material
DE1908181A1 (de) * 1969-02-19 1970-11-05 Roland Offsetmaschf Klemmgreifer fuer Bogenrotationsdruckmaschinen
US3606308A (en) * 1969-06-20 1971-09-20 Miller Printing Machinery Co Sheet gripping device
US3637202A (en) * 1970-05-14 1972-01-25 Miller Printing Machinery Co Sheet-gripping device
FR2240817B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1973-08-16 1981-04-17 Roland Offsetmaschf
US3994224A (en) * 1975-06-09 1976-11-30 Newspaper Equipment Company Mounting structure for printing plates
DE2606773C3 (de) * 1976-02-19 1984-06-20 Erich 4600 Dortmund Bock Vorrichtung zum Befestigen und Spannen einer biegsamen Druckplatte auf einem bzw. einen Formzylinder einer Rotationsdruckmaschine
DE2707643C3 (de) * 1977-02-23 1980-03-27 M.A.N. - Roland Druckmaschinen Ag, 6050 Offenbach Vorrichtung zum Spannen eines Drucktuches auf dem Zylinder einer Druckmaschine
DE2822043C3 (de) * 1978-05-20 1981-02-12 Koenig & Bauer Ag, 8700 Wuerzburg Einteiliger Greifer eines Zylinders einer Rotationsdruckmaschine
JPS5650877A (en) * 1980-05-15 1981-05-08 Matsushita Electric Ind Co Ltd Frame for car
DD154083A1 (de) * 1980-11-17 1982-02-24 Arndt Jentzsch Bogengreifereinrichtung
DE3112964A1 (de) * 1981-04-01 1982-10-21 Heidelberger Druckmaschinen Ag, 6900 Heidelberg "bogenuebertragungszylinder von bogenrotationsdruckmaschinen mit einer einrichtung zur passerkorrektur der aufdrucke"
JPS5853631U (ja) * 1981-09-30 1983-04-12 リョービ株式会社 オフセツト印刷機の版掛装置
US4527478A (en) * 1983-05-11 1985-07-09 M.A.N.-Roland Druckmaschinen Aktiengesellschaft Means for clamping gravure plates

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009015078A1 (de) 2009-03-31 2010-10-07 Heidelberger Druckmaschinen Ag Verfahren und Vorrichtung zur Greiferausrichtung

Also Published As

Publication number Publication date
DE3529639C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1988-08-04
US4718342A (en) 1988-01-12
EP0213397A2 (de) 1987-03-11
DE3529639A1 (de) 1987-02-26
EP0213397A3 (en) 1987-11-04
JPS6251452A (ja) 1987-03-06
ATE44908T1 (de) 1989-08-15

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