DE102008051093B4 - Device for turning a sheet inside out around a transverse axis during conveyance between two printing units of a printing machine - Google Patents
Device for turning a sheet inside out around a transverse axis during conveyance between two printing units of a printing machine Download PDFInfo
- Publication number
- DE102008051093B4 DE102008051093B4 DE102008051093.9A DE102008051093A DE102008051093B4 DE 102008051093 B4 DE102008051093 B4 DE 102008051093B4 DE 102008051093 A DE102008051093 A DE 102008051093A DE 102008051093 B4 DE102008051093 B4 DE 102008051093B4
- Authority
- DE
- Germany
- Prior art keywords
- sheet
- drum
- storage drum
- gripper
- separator
- 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.)
- Revoked
Links
- 238000007639 printing Methods 0.000 title claims abstract description 50
- 230000001360 synchronised effect Effects 0.000 claims abstract description 3
- 210000000080 chela (arthropods) Anatomy 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 5
- 101100537937 Caenorhabditis elegans arc-1 gene Proteins 0.000 description 2
- 101150097977 arch-1 gene Proteins 0.000 description 2
- 210000003746 feather Anatomy 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007645 offset printing Methods 0.000 description 1
- 239000005871 repellent Substances 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
- B41F21/08—Combinations of endless conveyors and grippers
Abstract
Vorrichtung zum Umstülpen eines Bogens um eine Querachse während des Förderns zwischen zwei Druckwerken einer Druckmaschine,mit einer Übertragungstrommel (3, 60), die Greifersysteme (9, 10, 64, 65) mit Greifern zum Halten des Bogens (1.1, 1.2, 1.3) am vorlaufenden Rand (11) aufweist,mit einem Förderer (2, 52-55, 71-76), der mindestens ein Greifersystem (15, 58, 59, 76) zur Übernahme des Bogens (1.1, 1.2, 1.3) von der Übertragungstrommel (60) am nachlaufenden Rand (14) und zur Übergabe an Greifer eines Greifersystems (21, 22) eines Druckzylinders (19, 61) des stromabwärts gelegenen Druckwerks aufweist, und mit mindestens einem Antrieb zum synchronen Umlauf der Übertragungstrommel (3), des Förderers (2, 52-55, 71-76) und des Druckzylinders (19, 61),wobei eine rotierbare Speichertrommel (3, 62) vorgesehen ist, die ein Greifersystem (9, 10, 63) mit entlang einer Greiferschließlinie angeordneten Greifern zum vorübergehenden Halten des Bogens (1.1, 1.2, 1.3) am vorlaufenden Rand (11) aufweist, und an der Speichertrommel (3, 62) mindestens ein Separator (26, 70) angeordnet ist, der während eines Umlaufes der Speichertrommel (3, 62) aus der Umlaufkontur der Greiferschließlinie herausfahrbar ist,dadurch gekennzeichnet,dass der Separator (26, 70) auf einer Kreisbahn (27) ein- und ausfahrbar ist.Device for turning over a sheet around a transverse axis during conveyance between two printing units of a printing machine, with a transfer drum (3, 60), the gripper systems (9, 10, 64, 65) with grippers for holding the sheet (1.1, 1.2, 1.3) on the leading edge (11), with a conveyor (2, 52-55, 71-76) which has at least one gripper system (15, 58, 59, 76) for taking over the sheet (1.1, 1.2, 1.3) from the transfer drum (60) on the trailing edge (14) and for transferring to grippers of a gripper system (21, 22) of a printing cylinder (19, 61) of the downstream printing unit, and with at least one drive for synchronous rotation of the transfer drum (3) of the conveyor (2, 52-55, 71-76) and the printing cylinder (19, 61), a rotatable storage drum (3, 62) being provided, which has a gripper system (9, 10, 63) with grippers arranged along a gripper closing line for temporary Holding the sheet (1.1, 1.2, 1.3) on the leading edge (11) t, and on the storage drum (3, 62) at least one separator (26, 70) is arranged, which can be moved out of the circumferential contour of the gripper closing line during one revolution of the storage drum (3, 62), characterized in that the separator (26, 70) can be retracted and extended on a circular path (27).
Description
Die Erfindung betrifft eine Vorrichtung zum Umstülpen eines Bogens um eine Querachse während eines Förderns zwischen zwei Druckwerken einer Druckmaschine nach dem Oberbegriff des Anspruchs 1.The invention relates to a device for turning a sheet inside out about a transverse axis during conveyance between two printing units of a printing press.
Um die Fertigungskosten niedrig zu halten, werden Druckmaschinen mit gleichartigen Druckwerken ausgestattet, die einen hohen Wiederholteilgrad aufweisen. Typisch ist eine Reihenanordnung von gleichartigen Druckwerken, mit denen jeweils ein Teilfarbenbild auf eine Seite eines Bogens gedruckt wird. Mit Registervorrichtungen wird sichergestellt, dass beim Übereinanderdruck die relative Lage der Teilfarbenbilder so ist, dass ein gewünschter Farbeindruck entsteht. Wird ein Auftrag zum Drucken auf beiden Seiten der Bogen abgearbeitet, werden die Bogen nach dem Bedrucken der Vorderseite gewendet, wobei zwischen zwei Druckwerken der Reihenanordnung eine Wendevorrichtung angeordnet ist. Die Wendevorrichtung bewirkt ein Umstülpen um eine Querachse oder ein Umschlagen um eine Längsachse. Nach einem Umstülpen werden die Bogen an dem Rand voraus durch die Druckwerke zum Drucken auf der Rückseite gefördert, der beim Drucken auf der Vorderseite nachlaufend war. Während eines Umstülpens wird ein Bogen in Greifern gehalten und durch mechanische oder pneumatische Leitelemente geführt. Ziel ist es, einen Bogen und dessen Aufdruck während des Förderns in der Wendevorrichtung nicht zu beschädigen und den Bogen so an Greifer eines Druckzylinders zu übergeben, dass der Aufdruck auf der Rückseite im Register zum Aufdruck auf der Vorderseite steht.In order to keep production costs low, printing machines are equipped with printing units of the same type that have a high degree of repetition. A series arrangement of similar printing units, with each of which a partial color image is printed on one side of a sheet, is typical. Register devices ensure that the relative position of the partial color images when overprinted is such that a desired color impression is created. If an order for printing is processed on both sides of the sheet, the sheets are turned after printing on the front side, a turning device being arranged between two printing units of the row arrangement. The turning device causes a turning inside out about a transverse axis or a turning over about a longitudinal axis. After being turned inside out, the sheets are conveyed at the edge ahead through the printing units for printing on the reverse side, which was trailing when printing on the front side. While it is being turned inside out, a sheet is held in grippers and guided by mechanical or pneumatic guide elements. The aim is not to damage a sheet and its imprint while it is being conveyed in the turning device and to transfer the sheet to the gripper of a printing cylinder in such a way that the imprint on the back is in register with the imprint on the front.
In
In
In der
Aufgabe der Erfindung ist es, eine Vorrichtung zum Umstülpen eines Bogens um eine Querachse während eines Förderns zwischen zwei Druckwerken einer Druckmaschine zu entwickeln, bei der eine Kollision mit Bogenführungselementen eines nachfolgenden Bogens verhindert ist.The object of the invention is to develop a device for turning a sheet inside out about a transverse axis during conveyance between two printing units of a printing press, in which a collision with sheet guide elements of a subsequent sheet is prevented.
Die Aufgabe wird mit einer Vorrichtung gelöst, welche die Merkmale nach Anspruch 1 aufweist. Vorteilhafte Ausgestaltungen ergeben sich aus den Unteransprüchen.The object is achieved with a device which has the features according to claim 1. Advantageous refinements result from the subclaims.
Gemäß der Erfindung ist an einer Speichertrommel, die einen Bogen am vorderen Rand hält und den Bogen um eine Querachse umführt, mindestens ein Separator angeordnet, der während eines Umlaufs der Speichertrommel aus der Umlaufkontur der Speichertrommel herausfährt und zurückgezogen wird. Ein Fördern des Bogens von der Speichertrommel zu einem Greifersystem eines Druckzylinders eines ersten Widerdruckwerks kann mit einer Übertragungstrommel, einem endlosen Förderer oder mittels eines Schwinggreifersystems vorgenommen werden. Der Separator kann als geschlossenes Blech oder in Form von mehreren parallel angeordneten Bügeln vorgesehen werden. Zum wiederkehrenden Ein- und Ausfahren des Separators können mechanische Getriebe und/oder elektromechanische Antriebe vorgesehen werden. Der Separator kann mit einer steuerbaren Saugluftquelle oder einer Blasluftquelle mit Venturidüsen zusammenwirken, wobei die Luft abhängig von der Drehstellung der Speichertrommel gestellt wird. Der Separator wird zyklisch zwischen einen abgehenden und einem nachfolgenden Bogen gefahren, so dass der abgehende Bogen nicht den ankommenden Bogen bzw. ein Greifersystem berührt.According to the invention, at least one separator is arranged on a storage drum, which holds a sheet at the front edge and circulates the sheet about a transverse axis, which separator moves out of the circumferential contour of the storage drum and is withdrawn during one revolution of the storage drum. The sheet can be conveyed from the storage drum to a gripper system of a printing cylinder of a first perfecting unit with a transfer drum, an endless conveyor or by means of an oscillating gripper system. The separator can be provided as a closed sheet metal or in the form of several brackets arranged in parallel. Mechanical gears and / or electromechanical drives can be provided for the recurring retraction and extension of the separator. The separator can interact with a controllable suction air source or a blown air source with Venturi nozzles, the air being adjusted depending on the rotational position of the storage drum. The separator is moved cyclically between an outgoing and a subsequent sheet so that the outgoing sheet does not touch the incoming sheet or a gripper system.
Die Erfindung soll nachstehend anhand von Ausführungsbeispielen erläutert werden, es zeigen:
-
1 : ein Schema einer Wendevorrichtung einer Druckmaschine, -
2 .1-2.6: Phasen beim Ein- und Ausfahren eines Separatorblechs einer Speichertrommel, -
3 : ein Kurvengetriebe zum Betätigen eines Separatorblechs, -
4 : ein Schema zur Wirkung eines Separatorblechs, -
5 .1-5.3: eine Umstülpvorrichtung mit einem Kettenförderer, und -
6 .1-6.2: eine Umstülpvorrichtung mit einem Hebelgreifersystem.
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1 : a scheme of a turning device of a printing machine, -
2 .1-2.6: Phases when moving in and out of a separator plate of a storage drum, -
3 : a cam gear for actuating a separator plate, -
4th : a scheme for the effect of a separator plate, -
5 .1-5.3: an everting device with a chain conveyor, and -
6th .1-6.2: an eversion device with a lever gripper system.
Um zu vermeiden, dass der abgehende Bogen 1 das Greifersystem
Anhand der
Das Ein- und Ausfahren eines Separatorsblechs kann starr an die Drehbewegung der Speichertrommel
In
Die
Gemäß
Wie in
In
Bei einer Variante nach den
Gemäß
BezugszeichenlisteList of reference symbols
- 11
- Bogenarc
- 22
- WendetrommelTurning drum
- 33
- SpeichertrommelStorage drum
- 44th
- Vorderseitefront
- 5-85-8
- TeilfarbenbildPartial color image
- 9, 109, 10
- GreifersystemGripper system
- 1111
- Randedge
- 12, 1312, 13
- SauggreifersystemSuction gripper system
- 1414th
- Randedge
- 1515th
- ZangengreifersystemPincer gripper system
- 1616
- Rückseiteback
- 1717th
- Spaltgap
- 1818th
- ÜbertragungszylinderTransfer cylinder
- 1919th
- DruckzylinderPrinting cylinder
- 2020th
- Aufzugelevator
- 21, 2221, 22
- GreifersystemGripper system
- 2323
- Pfeilarrow
- 2424
- Randedge
- 2525th
- Spaltgap
- 2626th
- SeparatorblechSeparator plate
- 2727
- Führungguide
- 28, 2928, 29
- GreifersystemGripper system
- 3131
- GreifersystemGripper system
- 3232
- Pfeilarrow
- 3333
- KurvenscheibeCam
- 3434
- KurvenrolleCam roller
- 3535
- KurvenhebelCam lever
- 3636
- DrehgelenkSwivel joint
- 3737
- Federfeather
- 3838
- KoppelPaddock
- 3939
- SchwinghebelRocker arm
- 4040
- DrehgelenkSwivel joint
- 4646
- MantelflächeOuter surface
- 4747
- GreifersystemGripper system
- 4848
- SaugluftSuction air
- 4949
- BlasluftvorrichtungBlown air device
- 5050
- BlasluftBlown air
- 5151
- SaugluftSuction air
- 52-5552-55
- Kettechain
- 56-5956-59
- GreifersystemGripper system
- 6060
- ÜbertragungstrommelTransfer drum
- 6161
- DruckzylinderPrinting cylinder
- 6262
- SpeichertrommelStorage drum
- 63-6763-67
- GreifersystemGripper system
- 6868
- SaugluftSuction air
- 6969
- Spaltgap
- 7070
- SeparatorblechSeparator plate
- 71, 7271, 72
- Hebellever
- 7373
- GreifersystemGripper system
- 74, 7574, 75
- Hebellever
- 7676
- ZangengreifersystemPincer gripper system
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008051093.9A DE102008051093B4 (en) | 2008-10-09 | 2008-10-09 | Device for turning a sheet inside out around a transverse axis during conveyance between two printing units of a printing machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008051093.9A DE102008051093B4 (en) | 2008-10-09 | 2008-10-09 | Device for turning a sheet inside out around a transverse axis during conveyance between two printing units of a printing machine |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102008051093A1 DE102008051093A1 (en) | 2010-04-15 |
DE102008051093B4 true DE102008051093B4 (en) | 2021-10-21 |
Family
ID=41821216
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102008051093.9A Revoked DE102008051093B4 (en) | 2008-10-09 | 2008-10-09 | Device for turning a sheet inside out around a transverse axis during conveyance between two printing units of a printing machine |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102008051093B4 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD263500A1 (en) | 1987-09-03 | 1989-01-04 | Polygraph Leipzig | DEVICE FOR REMOVING BOWS AND BOW PIPES |
DE4023615A1 (en) | 1989-08-28 | 1991-03-07 | Planeta Druckmaschinenwerk Ag | Sheet-guiding cylinder for rotary printer - has hinged flaps to remove sheet from cylinder |
DE102006032922B3 (en) | 2006-07-15 | 2007-09-27 | Koenig & Bauer Aktiengesellschaft | Sheet feeding assisting device for use in printing machine, has sheet stripping unit movably arranged in sheet running direction such that it anticipates front edge of subsequent sheet to be turned |
DE102007048230A1 (en) | 2006-11-06 | 2008-05-08 | Heidelberger Druckmaschinen Ag | Transfer drum for conveying of sheet of paper, has engaging device engaging at ends of plate that is fixed in area opposite to gripper system at drum body over hinge, where ends are turned towards gripper system |
DE102007049380A1 (en) | 2006-11-10 | 2008-05-15 | Heidelberger Druckmaschinen Ag | Sheet turning device for e.g. multicolor sheet fed printing machine, has storage drum with gripper systems, which are arranged in channels, guidance elements covering channels, and turning drum with gripper system for accepting sheet |
-
2008
- 2008-10-09 DE DE102008051093.9A patent/DE102008051093B4/en not_active Revoked
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD263500A1 (en) | 1987-09-03 | 1989-01-04 | Polygraph Leipzig | DEVICE FOR REMOVING BOWS AND BOW PIPES |
DE4023615A1 (en) | 1989-08-28 | 1991-03-07 | Planeta Druckmaschinenwerk Ag | Sheet-guiding cylinder for rotary printer - has hinged flaps to remove sheet from cylinder |
DE102006032922B3 (en) | 2006-07-15 | 2007-09-27 | Koenig & Bauer Aktiengesellschaft | Sheet feeding assisting device for use in printing machine, has sheet stripping unit movably arranged in sheet running direction such that it anticipates front edge of subsequent sheet to be turned |
DE102007048230A1 (en) | 2006-11-06 | 2008-05-08 | Heidelberger Druckmaschinen Ag | Transfer drum for conveying of sheet of paper, has engaging device engaging at ends of plate that is fixed in area opposite to gripper system at drum body over hinge, where ends are turned towards gripper system |
DE102007049380A1 (en) | 2006-11-10 | 2008-05-15 | Heidelberger Druckmaschinen Ag | Sheet turning device for e.g. multicolor sheet fed printing machine, has storage drum with gripper systems, which are arranged in channels, guidance elements covering channels, and turning drum with gripper system for accepting sheet |
Also Published As
Publication number | Publication date |
---|---|
DE102008051093A1 (en) | 2010-04-15 |
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R016 | Response to examination communication | ||
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