EP0213397A2 - Pince à ressort pour rotatives à feuille - Google Patents

Pince à ressort pour rotatives à feuille Download PDF

Info

Publication number: EP0213397A2
Authority: EP; European Patent Office
Prior art keywords: gripper; finger; shaft; movement; support
Prior art date: 1985-08-19
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

EP86110491A

Other languages

German (de)

English (en)

Other versions

EP0213397B1 (fr

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.)

1985-08-19

Filing date

1986-07-30

Publication date

1987-03-11

1986-07-30 Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG

1986-07-30 Priority to AT86110491T priority Critical patent/ATE44908T1/de

1987-03-11 Publication of EP0213397A2 publication Critical patent/EP0213397A2/fr

1987-11-04 Publication of EP0213397A3 publication Critical patent/EP0213397A3/de

1989-07-26 Application granted granted Critical

1989-07-26 Publication of EP0213397B1 publication Critical patent/EP0213397B1/fr

Status Expired legal-status Critical Current

Links

Images

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 a 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 compensation is as complete as possible the bearing force is to be achieved. With very high machine speeds and increased preload forces, adequate centering is no longer possible, for example as a result of spurious 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 hook tip connects to the axis of the hook shaft.
the geometry shown in FIG. 1 shows that the force exerted by the gripper tip on the gripper support continues to have 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 a 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 is based, the gripper finger the task in the case of a gripper of the type mentioned, to give a positive movement perpendicular to the gripper support by means of a straight guide in a second movement phase.
the advantages of the solution according to the invention are that without bulging the gripper tip and regardless of dirt on the guide and a soft gripper pad, 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 mounted on the gripper shaft 3 and is limited in its movement by the clamping piece 4 axially and radially by the cylindrical pins 9 and 10.
a pretensioned gripper finger 11 is mounted to move longitudinally on a guide pin 12 of the stop piece 8 in a ball bushing 13 in a second movement phase in a second movement phase and is cushioned by compression springs 14, 15.
the 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 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 still being open about 1 mm. 5 and 6 takes place in a second movement phase a longitudinal movement without play perpendicular to the gripper pad 5 of the gripper finger 11 on the guide pin 12 of the stop piece 8, the cylinder pins 9 and 10 then being free until the gripper is completely closed. A positionally accurate transfer between the cylinder 1 and another cylinder or a drum is thereby achieved, the gripper finger 11 being guided vertically in the last movement phase with high stability and accuracy.
the gripper does not protrude too far from the periphery of its cylinder 1 and the channel can be made narrow.
the free traversing of the leading edge of the sheet is ensured with the smallest possible swivel angle, because the gripper shaft 3 can be stored as vertically as possible below the gripper support 5.
the gripper finger 11 can additionally be guided 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 highest 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 Pince à ressort pour rotatives à feuille Expired EP0213397B1 (fr)

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 true EP0213397A2 (fr)	1987-03-11
EP0213397A3 EP0213397A3 (en)	1987-11-04
EP0213397B1 EP0213397B1 (fr)	1989-07-26

Family

ID=6278838

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP86110491A Expired EP0213397B1 (fr)	1985-08-19	1986-07-30	Pince à ressort pour rotatives à feuille

Country Status (5)

Country	Link
US (1)	US4718342A (fr)
EP (1)	EP0213397B1 (fr)
JP (1)	JPS6251452A (fr)
AT (1)	ATE44908T1 (fr)
DE (1)	DE3529639A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0356521A4 (fr) *	1988-02-17	1990-06-26	Izdatelstvo Izvestia Sovetov	Pince pour prises individuelles de produits imprimes se deplacant en cascade.
DE4127713C1 (fr) *	1991-08-22	1992-10-29	Koenig & Bauer Ag, 8700 Wuerzburg, De

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3632769A1 (de) *	1986-09-26	1988-04-07	Roland Man Druckmasch	Klemmgreifer fuer bogenrotationsdruckmaschinen
DE3632768C1 (de) *	1986-09-26	1988-01-14	Roland Man Druckmasch	Klemmgreifer fuer Bogenrotationsdruckmaschinen
DE3644484A1 (de) *	1986-12-24	1988-07-07	Heidelberger Druckmasch Ag	Greifereinrichtung fuer eine druckmaschine
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 (fr) *	1990-08-18	1992-02-06	Man Miller Druckmaschinen Gmbh, 6222 Geisenheim, De
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
DE102009015078A1 (de)	2009-03-31	2010-10-07	Heidelberger Druckmaschinen Ag	Verfahren und Vorrichtung zur Greiferausrichtung

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DD66634A (fr) *
DD67992A (fr) *
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 (fr) *	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 Industrial 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

1985
- 1985-08-19 DE DE19853529639 patent/DE3529639A1/de active Granted
1986
- 1986-07-30 AT AT86110491T patent/ATE44908T1/de not_active IP Right Cessation
- 1986-07-30 EP EP86110491A patent/EP0213397B1/fr not_active Expired
- 1986-08-05 US US06/893,488 patent/US4718342A/en not_active Expired - Fee Related
- 1986-08-19 JP JP61192209A patent/JPS6251452A/ja active Pending

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0356521A4 (fr) *	1988-02-17	1990-06-26	Izdatelstvo Izvestia Sovetov	Pince pour prises individuelles de produits imprimes se deplacant en cascade.
DE4127713C1 (fr) *	1991-08-22	1992-10-29	Koenig & Bauer Ag, 8700 Wuerzburg, De
US5303650A (en) *	1991-08-22	1994-04-19	Koenig & Bauer Aktiengesellschaft	Sheet gripper assembly

Also Published As

Publication number	Publication date
DE3529639C2 (fr)	1988-08-04
US4718342A (en)	1988-01-12
EP0213397B1 (fr)	1989-07-26
JPS6251452A (ja)	1987-03-06
EP0213397A3 (en)	1987-11-04
ATE44908T1 (de)	1989-08-15
DE3529639A1 (de)	1987-02-26

Legal Events

Date	Code	Title	Description
1987-01-24	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
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1987-10-21	RHK1	Main classification (correction)	Ipc: B41F 21/10
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1989-04-28	ITF	It: translation for a ep patent filed
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1990-06-12	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1990-08-01	26N	No opposition filed
1993-07-31	ITTA	It: last paid annual fee
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Publication	Publication Date	Title
EP0213397B1 (fr)	1989-07-26	Pince à ressort pour rotatives à feuille
EP0005863B1 (fr)	1981-07-01	Dispositif pneumatique pour le déplacement des feuilles une à une en vue de l'alignement latéral sur la table d'alimentation d'une machine de traitement de feuilles, en particulier une machine à imprimer
EP0212368B1 (fr)	1988-12-28	Pince à ressort pour rotatives à feuille
EP0261412B1 (fr)	1992-03-25	Pince pour machines rotatives à feuilles
DE19960649A1 (de)	2001-06-28	Vorrichtung zur Korrektur der lateralen Position einer Bedruckstoffbahn in einer Rollenrotationsdruckmaschine
EP0213398B1 (fr)	1989-10-04	Pince à ressort pour rotatives à feuille
CH646378A5 (de)	1984-11-30	Einrichtung zur steuerung von saugerschwingern in bogenfuehrungszylindern.
EP0309815B1 (fr)	1991-07-17	Dispositif pour amener des feuilles à une machine de traitement de feuilles, notamment à une imprimeuse
EP0212366A2 (fr)	1987-03-04	Pince à ressort pour rotatives à feuille
EP0100403B1 (fr)	1986-01-15	Dispositif pour paraffiner un fil au moyen de paraffine solide
EP0036496A1 (fr)	1981-09-30	Dispositif pour un ajustage latéral de feuilles amenées automatiquement pour machines à imprimer
EP0212367A2 (fr)	1987-03-04	Pince à ressort pour rotatives à feuille
DE69010313T2 (de)	1994-12-08	Papierführungsvorrichtung.
EP0250963A2 (fr)	1988-01-07	Dispositif d'entraînement des pinces oscillantes d'une machine à imprimer
EP0453792A1 (fr)	1991-10-30	Dispositif de dosage de l'encre avec encrier pivotable
EP0679593B1 (fr)	1997-08-13	Rouleau à mouvement cadencé pour transporter des feuilles dans un machine d'impression
EP0402615B1 (fr)	1994-04-13	Pince pour feuilles dans des machines travaillant avec des feuilles
DE8523759U1 (de)	1988-08-18	Federnder Greifer für Bogenrotationsdruckmaschinen
DE29801061U1 (de)	1998-03-12	Stapelkantenabtastung für einen Bogenanleger
DE102004060646A1 (de)	2005-07-28	Bogenpositioniervorrichtung einer Bogenzuführeinrichtung von einer Druckerpresse
EP1935817A2 (fr)	2008-06-25	Dispositif de guidage destiné à l'introduction de feuilles dans une machine d'imprimerie
DE3415287A1 (de)	1984-12-13	Zylinder- bzw. walzeneinstellvorrichtung fuer eine offsetmaschine
EP1310309A1 (fr)	2003-05-14	Tête de roulage tangentiel
AT240322B (de)	1965-05-25	Vorrichtung zum selbsttätigen Geradeführen von Gewebebahnen in Textilmaschinen
DE3015236A1 (de)	1980-12-11	Greifersteuerung an zylindern in bogenverarbeitenden maschinen, insbesondere druckmaschinen