EP0213398A2 - Pince à ressort pour rotatives à feuille - Google Patents

Pince à ressort pour rotatives à feuille Download PDF

Info

Publication number: EP0213398A2
Authority: EP; European Patent Office
Prior art keywords: gripper; shaft; finger; cylinder; clamping piece
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

EP86110492A

Other languages

German (de)

English (en)

Other versions

EP0213398A3 (en

EP0213398B1 (fr

Inventor

Claus Simeth

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 AT86110492T priority Critical patent/ATE46860T1/de

1987-03-11 Publication of EP0213398A2 publication Critical patent/EP0213398A2/fr

1987-10-28 Publication of EP0213398A3 publication Critical patent/EP0213398A3/de

1989-10-04 Application granted granted Critical

1989-10-04 Publication of EP0213398B1 publication Critical patent/EP0213398B1/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 of the type mentioned 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 small bearing play inevitably involves a high level of friction between the grippers at the bearing point, i.e. that part of the closing spring force is consumed in the camp itself.
DD-PS 66 634 From DD-PS 66 634 it is known to support a one-piece gripper lever on the gripper spindle and to adjust its pretensioning force by means of two compression springs.
the disadvantage is that at very high machine speeds and increased pretensioning forces, depending on the prestressing of the compression springs selected, under certain circumstances insufficient centering, e.g. as a result of interference vibrations that are introduced into the machine.
the gripper lever then loses its statically determined position.
DD-PS 67 992 From DD-PS 67 992 it is known to mount a gripper by means of a clamping piece on a swiveling gripper shaft having a fixed axis and a gripper tongue in a first movement phase a circular movement around the gripper shaft axis and in a second movement phase an approximately perpendicular with respect to the gripper support To give movement.
this gripper arrangement interacts with a non-positive parallel leaf spring arrangement and a gripper tongue that cannot withstand large closing forces without bulging.
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, precise guidance in the second vertical, movement phase is no longer possible.
the invention has for its object to give the gripper finger in a gripper of the type mentioned in a second movement phase a positive movement approximately perpendicular to the gripper pad with additional strengthening of the holding force.
the advantages of the invention are that the holding process is carried out separately from the gripping process with a force-boosting lever transmission.
the axis of rotation of the gripper in the joint 6 is very small in diameter, so that the friction loss is negligible.
the gripper maintains its position even at very high machine speeds statically determined position.
the position of the gripper shaft no longer needs to be a compromise, as is the case with conventional grippers, in such a way that it must be conveniently located on the one hand with respect to pushing the gripper, that is, as far as possible in the height of the cylinder jacket and on the other hand as perpendicular as possible under the tip, so that free movement around the leading edge of the paper is guaranteed with the smallest possible swivel angle.
the stop 9 lies in the plane of the paper, so that no play change occurs in the joint 6 during the closing process.
the stop 13 in the pulling direction for the gripper base body 10 is in the vicinity of the joint 6. This guarantees an optimal fixing of the position of the joint 6 with a minimal mass dimensioning of the individual rotary transmissions.
a groove 2 is machined 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.
a gripper pad 5 is attached to a wall of the groove 2, the gripper pad surface of which is at the same height as the peripheral surface of the cylinder 1.
a gripper finger 11 is connected by a joint 6 to a base body 10, which is loosely supported around the gripper shaft 3. Between the gripper base body 10 or the gripper finger 11 and the arms of the clamping piece 4, compression springs 7, 8 are arranged opposite one another with respect to the gripper shaft 3. The gripper finger 11 and the base body 10 are pressed non-positively onto the clamping piece 4 via the compression springs 7, 8 and adjustable stops 9, 12.
the gripper shaft 3 including the clamping piece 4 can be moved until the base body 10 is supported on the cylinder 1 by means of a stop 13.
the gripper is pivoted in such a way over the arch that the gripper tip 14 is open at this time about 2 mm.
the pivot point of the gripper now changes from the gripper shaft 3 to the joint 6.
the clamping piece 4 is moved further via the gripper control 15 and presses the gripper tip 14 onto the bow via the spring 8 with an extended lever arm.
the stop 9, with which the gripper finger 11 is supported on the clamping piece 4, is then free.
the additional strengthening of the holding force is brought about by the transmission ratio of the extended lever arm to the supported shorter lever arm.
a multifunctional gripper control for the gripping process or the holding process can be achieved with only one control curve of the gripper control 15, since, with an improved holding effect as a result of force-increasing lever transmission in conjunction with a sliding-free, approximately vertical gripper closure, free driving around is also possible the front edge of the paper can be reached with the smallest possible swivel angle during the gripping process, and the gripper shaft 3 can also be stored deep within the cylinder 1 as vertically as possible under the gripper tip 14.

Landscapes

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

EP86110492A 1985-08-19 1986-07-30 Pince à ressort pour rotatives à feuille Expired EP0213398B1 (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
AT86110492T ATE46860T1 (de)	1985-08-19	1986-07-30	Federnder greifer fuer bogenrotationsdruckmaschinen.

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE3529656		1985-08-19
DE19853529656 DE3529656A1 (de)	1985-08-19	1985-08-19	Federnder greifer fuer bogenrotationsdruckmaschinen

Publications (3)

Publication Number	Publication Date
EP0213398A2 true EP0213398A2 (fr)	1987-03-11
EP0213398A3 EP0213398A3 (en)	1987-10-28
EP0213398B1 EP0213398B1 (fr)	1989-10-04

Family

ID=6278851

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP86110492A Expired EP0213398B1 (fr)	1985-08-19	1986-07-30	Pince à ressort pour rotatives à feuille

Country Status (5)

Country	Link
US (1)	US4864929A (fr)
EP (1)	EP0213398B1 (fr)
JP (1)	JPS6251451A (fr)
AT (1)	ATE46860T1 (fr)
DE (1)	DE3529656A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3821324C2 (de) *	1988-06-24	1994-03-10	Heidelberger Druckmasch Ag	Bogengreifer an Bogenrotationsdruckmaschinen
DE3921474A1 (de) *	1989-06-30	1991-01-10	Heidelberger Druckmasch Ag	Bogengreifereinrichtung fuer bogenrotationsdruckmaschinen
DE4012497A1 (de) *	1990-04-19	1991-10-24	Roland Man Druckmasch	Saugersteuerung in bogenuebergabetrommeln in mehrfarben-bogendruckmaschinen
DE4210327A1 (de) *	1992-03-30	1993-10-07	Koenig & Bauer Ag	Bogenwendeeinrichtung in einer Rotationsdruckmaschine
GB2268928B (en) *	1992-07-22	1995-10-18	Heidelberger Druckmasch Ag	Sheet gripper for a paper-carrying cylinder of a sheet-fed printing press
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
CN101301809B (zh) *	2007-05-11	2012-05-30	海德堡印刷机械股份公司	单张纸印刷机印刷装置之间的递纸辊
CN108203010B (zh) *	2016-12-20	2021-03-09	博斯特（上海）有限公司	牙排锁定装置和片材处理设备

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DD66634A (fr) *
DE493269C (de) *		1930-03-05	Mailaender Fa J G	Greifer bei Druckzylindern fuer Druckmaschinen
DD67992A (fr) *
GB310177A (en) *	1928-04-14	1929-04-25	Fred Wesley Wright	Improvements in and relating to sheet-gripping mechanisms for printing machines
US2599776A (en) *	1947-05-24	1952-06-10	Miehle Printing Press & Mfg	Sheet gripper structure and setting means therefor
AT298522B (de) *	1968-02-21	1972-04-15	Polygraph Leipzig	Vorrichtung zum klemmen von materialbogen
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
US3937642A (en) *	1971-02-20	1976-02-10	Hermann Kronseder	Labeling device with an installation for marking labels
DE2233431C3 (de) *	1972-07-07	1983-12-29	Koenig & Bauer AG, 8700 Würzburg	Greifer für Druckmaschinen
ES230780Y (es) *	1977-08-26	1978-07-01		Conjunto de pinza y abrazadera para el transporte de laminasen maquinas litograficas.
DD154083A1 (de) *	1980-11-17	1982-02-24	Arndt Jentzsch	Bogengreifereinrichtung
JPS57182443A (en) *	1981-05-08	1982-11-10	Komori Printing Mach Co Ltd	Front guide device for sheet fed press

1985
- 1985-08-19 DE DE19853529656 patent/DE3529656A1/de active Granted
1986
- 1986-07-30 EP EP86110492A patent/EP0213398B1/fr not_active Expired
- 1986-07-30 AT AT86110492T patent/ATE46860T1/de not_active IP Right Cessation
- 1986-08-19 JP JP61192208A patent/JPS6251451A/ja active Granted
1988
- 1988-06-27 US US07/213,438 patent/US4864929A/en not_active Expired - Fee Related

Also Published As

Publication number	Publication date
JPH0530384B2 (fr)	1993-05-07
EP0213398A3 (en)	1987-10-28
JPS6251451A (ja)	1987-03-06
ATE46860T1 (de)	1989-10-15
DE3529656A1 (de)	1987-02-26
US4864929A (en)	1989-09-12
DE3529656C2 (fr)	1988-05-26
EP0213398B1 (fr)	1989-10-04

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
1987-03-11	AK	Designated contracting states	Kind code of ref document: A2 Designated state(s): AT CH FR GB IT LI NL SE
1987-09-08	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1987-10-28	AK	Designated contracting states	Kind code of ref document: A3 Designated state(s): AT CH FR GB IT LI NL SE
1988-01-27	17P	Request for examination filed	Effective date: 19870930
1988-07-13	17Q	First examination report despatched	Effective date: 19880527
1989-04-07	ITF	It: translation for a ep patent filed
1989-08-19	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1989-10-04	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): AT CH FR GB IT LI NL SE
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1989-11-08	GBT	Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
1990-07-26	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1990-07-26	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1990-09-12	26N	No opposition filed
1993-07-31	ITTA	It: last paid annual fee
1995-01-31	EAL	Se: european patent in force in sweden	Ref document number: 86110492.5
1995-06-14	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: CH Payment date: 19950614 Year of fee payment: 10
1995-06-20	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: AT Payment date: 19950620 Year of fee payment: 10
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1998-03-25	GBPC	Gb: european patent ceased through non-payment of renewal fee	Effective date: 19970730
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Publication	Publication Date	Title
EP0213397B1 (fr)	1989-07-26	Pince à ressort pour rotatives à feuille
DD154083A1 (de)	1982-02-24	Bogengreifereinrichtung
EP0213398B1 (fr)	1989-10-04	Pince à ressort pour rotatives à feuille
EP0212368B1 (fr)	1988-12-28	Pince à ressort pour rotatives à feuille
EP0261412B1 (fr)	1992-03-25	Pince pour machines rotatives à feuilles
DE4001502C2 (fr)	1992-10-08
CH622730A5 (fr)	1981-04-30
EP0212366A2 (fr)	1987-03-04	Pince à ressort pour rotatives à feuille
EP0212367A2 (fr)	1987-03-04	Pince à ressort pour rotatives à feuille
DE2335575C3 (de)	1978-11-02	Kopierschleifmaschine
EP0250963A2 (fr)	1988-01-07	Dispositif d'entraînement des pinces oscillantes d'une machine à imprimer
DE3037741C2 (de)	1982-12-30	Antriebsvorrichtung für einen Schlitten
DE1965549A1 (de)	1970-12-10	Vorrichtung zum Ausrichten und Transportieren von Fruechten
DE4009175A1 (de)	1991-09-26	Elastische hubduesen und tasterlagerung fuer bogenanleger
WO2006072422A1 (fr)	2006-07-13	Element de prehension pour maintenir et positionner un objet sous forme de disque ou de plaque et procede pour maintenir et positionner un objet sous forme de disque ou de plaque
DE3011365C2 (fr)	1989-03-16
DE69302227T2 (de)	1996-09-12	Bördelkopf für Konservendosen mit Spielregulierungsmitteln
EP0402615B1 (fr)	1994-04-13	Pince pour feuilles dans des machines travaillant avec des feuilles
DE3852058T2 (de)	1995-03-23	Siebdruckmaschine.
DE102004060646A1 (de)	2005-07-28	Bogenpositioniervorrichtung einer Bogenzuführeinrichtung von einer Druckerpresse
DE29801061U1 (de)	1998-03-12	Stapelkantenabtastung für einen Bogenanleger
DE8523759U1 (de)	1988-08-18	Federnder Greifer für Bogenrotationsdruckmaschinen
EP0597386A1 (fr)	1994-05-18	Dispositif pour transférer des tôles dans une installation de presse
AT240322B (de)	1965-05-25	Vorrichtung zum selbsttätigen Geradeführen von Gewebebahnen in Textilmaschinen
DE3519293A1 (de)	1986-12-04	Greifersystem