EP1864799A2 - Dispositif et procédé destinés à la conduite de feuilles dans des machines d'impression - Google Patents

Dispositif et procédé destinés à la conduite de feuilles dans des machines d'impression Download PDF

Info

Publication number: EP1864799A2
Authority: EP; European Patent Office
Prior art keywords: sheet; turned; cylinder; trailing edge; gripper
Prior art date: 2006-06-08
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

EP07109796A

Other languages

German (de)

English (en)

Other versions

EP1864799B1 (fr

EP1864799A3 (fr

Inventor

Gunter Peter

Michael Koch

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.)

Koenig and Bauer AG

Original Assignee

Koenig and Bauer 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.)

2006-06-08

Filing date

2007-06-07

Publication date

2007-12-12

2007-06-07 Application filed by Koenig and Bauer AG filed Critical Koenig and Bauer AG

2007-12-12 Publication of EP1864799A2 publication Critical patent/EP1864799A2/fr

2008-06-04 Publication of EP1864799A3 publication Critical patent/EP1864799A3/fr

2012-02-01 Application granted granted Critical

2012-02-01 Publication of EP1864799B1 publication Critical patent/EP1864799B1/fr

Status Not-in-force legal-status Critical Current

2027-06-07 Anticipated expiration legal-status Critical

Links

238000000034 method Methods 0.000 title claims abstract description 13
230000006978 adaptation Effects 0.000 claims description 2
238000001514 detection method Methods 0.000 claims 1
230000008878 coupling Effects 0.000 description 3
238000010168 coupling process Methods 0.000 description 3
238000005859 coupling reaction Methods 0.000 description 3
241000252254 Catostomidae Species 0.000 description 2
238000011144 upstream manufacturing Methods 0.000 description 2
239000006096 absorbing agent Substances 0.000 description 1
230000001419 dependent effect Effects 0.000 description 1
238000005461 lubrication Methods 0.000 description 1

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
- B41F21/106—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
- 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

Definitions

the invention relates to an apparatus and a method for guiding sheets in printing presses, which can be used either in straight printing or perfecting and with which the sheet can be turned in the perfecting process according to the principle of trailing edge application, the on a Cylinder guided with grippers to be turned sheet is detected by a sheet transfer system of a turning drum and continued.
a device for guiding and directing the after sheet turning in perfecting the trailing edge expectant sheet leading edge is from the document DE-OS 44 24 970 A known.
the turned-peeling sheet is brought out of the sheet path of the incoming next sheet by being temporarily sucked by means of a suction device on the Leitrakel.
this sheet is tightened between the suction system of the turning drum and suction due to its forced operation and brought out of the path of the following sheet.
a disadvantage of this guide is that the withdrawing sheet can be performed only briefly by the suction device on the Leitrakel. At the latest when the following sheet has reached its front edge in front of the suction device, the suction air in the suction device must be turned off and the sheet released.
the short positive guidance is not sufficient, especially of sheets in the large format range or heavy color guide to avoid a bow encounter safely. As a result of the contact, it can lead to a smearing of the printed down-facing surfaces.
a sheet guiding device in which the subsequent and the withdrawing sheet are separated from each other by mechanical means, by the withdrawing sheet is pressed after its reversal by a rake from the feed plane of the Leitrakel in the effective range of the baffle. For a short time, the withdrawing sheet is directed at the leading edge, which has now become the trailing edge of the sheet, by means of a rake.
the length of the rake is limited by the condition that the foremost point of the rake must have taken the starting position behind the feeding plane of the sheet before the arrival of the subsequent sheet. Again, the leadership of the subtending bow is not enough to avoid a contact of the turned with the subsequent bow safely.
the invention has the advantage that the arc is guided safely and without bulging by the guide device according to the invention after the reversal of motion.
the risk of lubrication of incoming and subtending bow as well as peeling sheet and sheet baffle is eliminated.
the sheet is fed streamlined the turning drum.
FIG. 1 shows a schematic representation of the turning process with a turning drum 1 on a perfecting machine.
two opposite correlatively cooperating suction and gripper systems 2, 3 are provided on the turning drum 1.
Upstream of the turning drum 1 is a cylinder 4, which in turn is downstream of a sheet guiding cylinder 5.
the directions of rotation of the turning drum 1 and the cylinder 4 are shown.
the cylinder 4 may be a printing cylinder, a transfer drum or a storage drum.
Below the cylinder 4 a Leitrakel 6 is arranged.
the Leitrakel 6 extends over the width of the cylinder 4.
the guide 7 is formed by a gripper device, in the present embodiment of dynamic stretchers 8, which is moved in an orbit with a matched to the sheet movement speed. But it is also conceivable to use clamping gripper.
the guide 7 is adjustably arranged on the Leitrakel 6. This allows adaptation to different sheet format lengths.
a below the turning drum 1 extending sheet guiding device in the form of a baffle 11 is provided below the guide 7 .
the dynamic stretch suction 8 on the coupling 21 of a linkage 22 which is rotatably fixed in its bearing points on the driven via a push rod 17 sliding block 23, respectively.
the sliding block 23 is longitudinally movable on a guide track 18.
the crank 24 is designed as an angle lever whose third pivot point carries a roller 25, which rolls on a roller conveyor 19.
the roller conveyor 19 forms the extension of a rotatably mounted in the machine frame angle roller lever 26, the roller 27 rolls on the cam 20.
the drive for the vertical movement is realized via a dead-stop, which is switched in the movement reversal points by means of rear shift stops 16.1 and front 16.2 and thus switches the dynamic stretch-suction device 8 between discharge 13 and idle plane.
the sheet to be reversed 9 is printed in the mode perfecting on the printing cylinder 4. Thereafter, the sheet to be reversed 9 passes through the tangent point of printing cylinder 4 and turning drum 1, where the sheet to be turned 9 sucked in the rear of the suction system 3, guided under the periphery of the turning drum 1, passed to the gripper system 2 and the following, not shown printing cylinder is supplied.
the sheet 9 to be turned is held by the gripper of the printing cylinder 4.
Shortly before reaching the Leitrakel 6 opens the gripper, which is to be turned sheet 9 with his Front edge of the printing cylinder 4 solved in a known manner and guided along the Leitrakel 6 along.
the intake air is interrupted and the turned bow 10 released.
the turned arc 10 is guided taken at the front and rear edge simultaneously.
the operation of the gripper guide shown in Fig. 2 and 3 is now the following:
the horizontal movement of the dynamic stretching suction 8 is transmitted by a drive, not shown via the push rod 17 on the sliding block 23.
the vertical movement can, as shown in Fig. 2, introduced by the cam 20 and transmitted via the roller 27 to the roller lever 19 fixed to the angle roller lever 26 and from there again via the roller 25 to the dynamic stretch absorber 8 carrying coupling mechanism 22.
the takeover position of the dynamic stretch blower 8 is at the point of reversing the movement of the turn 9. 9 which is in the turning operation. If now passes over the guide surface of the Leitrakel 6 pushed sheet leading edge of the sheet to be turned 9 in the motion reversal point so this sheet edge is sucked by the reversal of motion to the new sheet trailing edge of the now turned bow 10 and as such by the dynamic Stretching 8. Analogous to the accelerated by the turning process trailing edge of the turned arc 10, the movement of the dynamic stretch vacuum 12 takes place. In an advantageous embodiment of the invention, the turned arc undergoes a 10 by a small differential movement of the dynamic stretch suction 8 constantly acting tightening.
the under tension turned arc 10 is in addition to its horizontal guidance also vertically in a below by the dynamic Stretching 8 the feed plane 12 lying discharge plane 13 spent to dodge the supplied in the feed plane 12 leading edge of the sheet to be turned 9 and exclude any contact with the sheet to be turned 9.
the baffle 11 and the turned sheet 10 smoothly perform the beater 1, the distance traveled in Hinterkantenzwangs Insert distance of the turned arc 10 extends advantageously into the turning room.

Landscapes

Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)

EP20070109796 2006-06-08 2007-06-07 Dispositif destiné à la conduite de feuilles dans des machines d'impression Not-in-force EP1864799B1 (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE200610026667 DE102006026667A1 (de)	2006-06-08	2006-06-08	Vorrichtung und Verfahren zum Leiten von Bogen in Druckmaschinen

Publications (3)

Publication Number	Publication Date
EP1864799A2 true EP1864799A2 (fr)	2007-12-12
EP1864799A3 EP1864799A3 (fr)	2008-06-04
EP1864799B1 EP1864799B1 (fr)	2012-02-01

Family

ID=38582284

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP20070109796 Not-in-force EP1864799B1 (fr)	2006-06-08	2007-06-07	Dispositif destiné à la conduite de feuilles dans des machines d'impression

Country Status (3)

Country	Link
EP (1)	EP1864799B1 (fr)
JP (1)	JP5079398B2 (fr)
DE (1)	DE102006026667A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE102009048689C5 (de)	2008-11-04	2020-06-25	Heidelberger Druckmaschinen Ag	Vorrichtung zum Umstülpen eines Bogens um eine Querachse während der Förderns zwischen zwei Druckwerken einer Druckmaschine
DE102015209689B4 (de)	2014-06-18	2021-03-25	Koenig & Bauer Ag	Wendevorrichtung für eine bogenverarbeitende Maschine und Verfahren zum Wenden von Bogen

Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE4030070A1 (de)	1990-09-22	1992-03-26	Planeta Druckmaschinenwerk Ag	Bogenspeichereinheit an rotationsdruckmaschinen
DE4140762A1 (de)	1991-12-11	1993-06-17	Kba Planeta Ag	Bogenleiteinrichtung
DE4424970A1 (de)	1994-07-15	1996-01-18	Kba Planeta Ag	Pneumatisch arbeitende Leiteinrichtung zum Wenden von Bogen
DE4424971A1 (de)	1994-07-15	1996-01-18	Kba Planeta Ag	Leiteinrichtung an Bogenrotationsdruckmaschinen

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DD101336A1 (fr) *	1972-12-27	1973-11-12
DE3608470A1 (de) *	1986-03-14	1987-09-24	Heidelberger Druckmasch Ag	Umfuehrtrommel fuer den bogentransport in einer druckmaschine
DE4140763C2 (de) *	1991-12-11	1997-06-19	Kba Planeta Ag	Einrichtung zur Bogenführung
DE4210327A1 (de) *	1992-03-30	1993-10-07	Koenig & Bauer Ag	Bogenwendeeinrichtung in einer Rotationsdruckmaschine
DE19615730A1 (de) *	1996-04-20	1997-10-23	Heidelberger Druckmasch Ag	Wendeeinrichtung für eine Druckmaschine, insbesondere eine Bogenrotations-Offsetdruckmaschine
DE19940214B4 (de) *	1998-03-28	2014-03-06	Koenig & Bauer Aktiengesellschaft	Leitrakel zur Bogenführung in Druckmaschinen
DE10158467B4 (de) *	2000-12-21	2014-05-15	Heidelberger Druckmaschinen Ag	Druckmaschine und Verfahren zum Bedrucken eines Bogens

2006
- 2006-06-08 DE DE200610026667 patent/DE102006026667A1/de not_active Withdrawn
2007
- 2007-06-07 EP EP20070109796 patent/EP1864799B1/fr not_active Not-in-force
- 2007-06-07 JP JP2007151634A patent/JP5079398B2/ja not_active Expired - Fee Related

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE4030070A1 (de)	1990-09-22	1992-03-26	Planeta Druckmaschinenwerk Ag	Bogenspeichereinheit an rotationsdruckmaschinen
DE4140762A1 (de)	1991-12-11	1993-06-17	Kba Planeta Ag	Bogenleiteinrichtung
DE4424970A1 (de)	1994-07-15	1996-01-18	Kba Planeta Ag	Pneumatisch arbeitende Leiteinrichtung zum Wenden von Bogen
DE4424971A1 (de)	1994-07-15	1996-01-18	Kba Planeta Ag	Leiteinrichtung an Bogenrotationsdruckmaschinen

Also Published As

Publication number	Publication date
JP5079398B2 (ja)	2012-11-21
DE102006026667A1 (de)	2007-12-13
EP1864799B1 (fr)	2012-02-01
EP1864799A3 (fr)	2008-06-04
JP2007326366A (ja)	2007-12-20

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DE3717093C2 (fr)	1989-12-28
DE2604379C2 (de)	1982-02-25	Verfahren zum Ausrichten von Bogen
EP1878569B1 (fr)	2010-10-13	Dispositif pour supporter le guidage des feuilles dans des machines d'impression
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