DE102008035062A1 - Pince gripper system for use in turning drum of printing machine, has gripper shaft carrying gripper blade and supported within gripper tube, where gripper shaft and gripper tube are drivable at both ends by control drive - Google Patents
Pince gripper system for use in turning drum of printing machine, has gripper shaft carrying gripper blade and supported within gripper tube, where gripper shaft and gripper tube are drivable at both ends by control drive Download PDFInfo
- Publication number
- DE102008035062A1 DE102008035062A1 DE102008035062A DE102008035062A DE102008035062A1 DE 102008035062 A1 DE102008035062 A1 DE 102008035062A1 DE 102008035062 A DE102008035062 A DE 102008035062A DE 102008035062 A DE102008035062 A DE 102008035062A DE 102008035062 A1 DE102008035062 A1 DE 102008035062A1
- Authority
- DE
- Germany
- Prior art keywords
- gripper
- shaft
- tube
- pliers
- drive shaft
- 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.)
- Withdrawn
Links
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H5/00—Feeding articles separated from piles; Feeding articles to machines
- B65H5/08—Feeding articles separated from piles; Feeding articles to machines by grippers, e.g. suction grippers
- B65H5/12—Revolving grippers, e.g. mounted on arms, frames or cylinders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H5/00—Feeding articles separated from piles; Feeding articles to machines
- B65H5/08—Feeding articles separated from piles; Feeding articles to machines by grippers, e.g. suction grippers
- B65H5/14—Details of grippers; Actuating-mechanisms therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
Abstract
Description
Die Erfindung betrifft ein Zangengreifersystem in Wendetrommeln von Druckmaschinen, die wahlweise im Schöndruck oder im Schön- und Widerdruckbetrieben werden können, im Schön- und Widerdruck einen Bogen nach dem Prinzip der Hinterkantenwendung wenden und drei Übergabetrommeln zwischen vor- und nachgeordneten Druckwerken aufweisen.The The invention relates to a forceps gripper system in turning drums of Printing machines, which can be printed either in straight printing or in and counterprints can be and reverse printing a bow on the principle of trailing edge and three transfer drums between upstream and downstream Have printing units.
Bei dieser so genannten Drei-Trommel-Wendung ist in Bogenlaufrichtung gesehen die dritte Übergabetrommel als Wendetrommel ausgebildet, wobei der Bogen im Schön- und Widerdruck von dem Zangengreifersystem an der Hinterkante auf einer der Wendetrommel vorgelagerten Trommel ergriffen und gewendet wird.at This so-called three-drum twist is in sheet travel direction Seen the third transfer drum formed as a turning drum, wherein the bow in the perfecting of the pliers gripper system at the trailing edge on a drum located upstream of the turning drum is taken and turned.
Aus
der
Nachteilig an dem bekannten Zangengreifersystem ist, dass am Greiferrohr an den Stellen, an denen die Greiferfinger auf der Greiferwelle angeordnet sind und aus dem Greiferrohr herausragen, Aussparungen vorgesehen sind. Dadurch wird das Greiferrohr in seiner Steifigkeit geschwächt.adversely on the known gripper gripper system is that on the gripper tube the places where the gripper fingers are placed on the gripper shaft are and protrude from the gripper tube, recesses provided are. As a result, the gripper tube is weakened in its rigidity.
Das zum Schließen der Greifer einseitig eingeleitete Drehmoment am Ende der Greiferwelle auf der einen Maschinenseite sowie das ebenfalls einseitig eingeleitetet Drehmoment am Ende des geschwächten Greiferrohres auf der anderen Seite führt zur Verdre hung des Zangengreifersystems. Die Verdrehung nimmt mit zunehmendem Abstand von der Krafteinleitungsstelle zu.The for closing the gripper unilaterally introduced torque at the end of the gripper shaft on one side of the machine and the also unilaterally introduced torque at the end of the weakened Gripper tube on the other side leads to Verdre hung of the forceps gripper system. The twist increases with increasing distance from the point of application to.
In großformatigen Druckmaschinen mit langer Greiferwelle und langem Greiferrohr führt die Elastizität des Greifersystems aufgrund der langen Kraftwege zu ungenauer Bogenübergabe, die Passerdifferenzen verursacht. Zur Erzielung eines einwandfreien Passers wäre deshalb eine starke, massenintensive Gestaltung des Greifersystems erforderlich. Dies würde aber zu erhöhten Massenkräften führen, die wiederum Schwingungen in der Druckmaschine verursachen. Diese Schwingungen beeinflussen ebenfalls die Genauigkeit der Bogenübergabe negativ und führen zu einem erhöhten Verschleiß der Antriebe.In large format printing machines with long gripper shaft and long gripper tube leads the elasticity of the gripper system due to the long force paths to inaccurate sheet transfer, causes the registration differences. To achieve a flawless Passers would therefore be a strong, mass-intensive design required of the gripper system. But that would be too much Mass forces lead, in turn, vibrations in the printing press. These vibrations influence also the accuracy of sheet transfer negative and lead to increased wear of the drives.
Ausgehend von den Nachteilen aus dem Stand der Technik ist es Aufgabe der Erfindung, ein Zangengreifersystem in Wendetrommeln von Druckmaschinen so auszugestalten, dass ohne Erhöhung der Massenkräfte eine genaue Bogenübergabe bei der Bogenübergabe ermöglicht.outgoing Of the disadvantages of the prior art, it is the task of Invention, a tong gripper system in turning drums of printing presses to design so that without increasing the mass forces an exact sheet transfer at the sheet transfer allows.
Erfindungsgemäß wird die Aufgabe durch ein Zangengreifersystem mit den Merkmalen des 1. Anspruchs gelöst. Vorteilhafte Ausgestaltungen ergeben sich aus den Unteransprüchen.According to the invention the task by a forceps gripper system with the features of 1st claim solved. Advantageous embodiments result from the dependent claims.
Der Vorteil dieser Lösung besteht darin, dass die Antriebsbewegung nicht mehr einseitig, sondern symmetrisch auf beide Enden sowohl des Greiferrohrs als auch der Greiferwelle übertragen wird. Die Verformung des Greifersystems infolge Torsionsbelastung ist vergleichsweise gering, so dass bei der Bogenübergabe zwischen zwei Greifersystemen im Bereich eines jeden Greiferfingers gleiche Bogenübergabebedingungen vorliegen.Of the Advantage of this solution is that the drive movement no longer one-sided, but symmetrical on both ends both of the gripper tube and the gripper shaft is transmitted. The deformation of the gripper system due to torsional loading is comparatively small, so that at the sheet transfer between two gripper systems in the area of each gripper finger same Sheet transfer conditions exist.
Eine vorteilhafte Lösung sieht vor, die Antriebswellen von Greiferrohr und Greiferwelle – wie diese – koaxial zueinander zu positionieren. Dadurch wird eine Platz sparende Bauweise erreicht. Die Lagerung der als Hohlwelle ausgebildeten Antriebswelle für das Greiferrohr auf der Antriebswelle für die Greiferwelle erfolgt vorzugsweise durch die Verwendung von Wälzlagern. Diese Lager sind weitgehend spielfrei und garantieren somit eine hohe Präzision bei der Bogenübergabe und Bogenwendung.A advantageous solution provides, the drive shafts of gripper tube and gripper shaft - like this - coaxial with each other to position. This achieves a space-saving design. The storage of the formed as a hollow shaft drive shaft for the gripper tube on the drive shaft for the gripper shaft is preferably done by the use of rolling bearings. These bearings are largely free of play and thus guarantee a high precision in sheet transfer and perfecting.
Eine Andrückfeder, insbesondere Torsionsstabfeder, zur Sicherstellung der erforderlichen Greiferkraft ist nicht erforderlich.A Pressure spring, in particular Torsionsstabfeder, to ensure The required gripping force is not required.
Im Folgenden soll die Erfindung beispielhaft erläutert werden. Die dazugehörigen Zeichnungen stellen dabei dar:in the The invention will be explained by way of example below. The accompanying drawings represent:
Die
Greiferwelle
Parallel
zum Greiferrohr
Die
zusätzliche Antriebswelle
Analog
zur Greiferwelle
Die
Wirkungsweise des erfindungsgemäßen Greifersystems
im Schön- und Widerruck ist folgende:
Im Schön-
und Widerdruck wird die Greiferzungen tragende Greiferwelle
In perfecting the gripper tongues carrying gripper shaft
- 11
- ÜbergabetrommelTransfer drum
- 22
- Speichertrommelstorage drum
- 33
- Wendetrommelbeater
- 44
- Druckzylinderpressure cylinder
- 55
- Druckzylinderpressure cylinder
- 66
- Gummizylinderrubber cylinder
- 77
- Greifersystemgripper system
- 88th
- Bogenbow
- 99
- Saugersystemsuction system
- 1010
- ZangengreifersystemPincer gripper system
- 1111
- Greiferrohrgripper tube
- 1212
- Greiferwellegripper shaft
- 1313
- Ritzelpinion
- 1414
- Ritzelpinion
- 1515
- Ritzelpinion
- 1616
- Ritzelpinion
- 1717
- VorgelegegetriebeCountershaft transmission
- 1818
- VorgelegegetriebeCountershaft transmission
- 1919
- Antriebswelledrive shaft
- 2020
- Antriebswelledrive shaft
- 2121
- Zahnsegmenttoothed segment
- 2222
- Zahnsegmenttoothed segment
- 2323
- Zahnsegmenttoothed segment
- 2424
- Zahnsegmenttoothed segment
- 2525
- Ringspaltannular gap
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 2414998 A1 [0003] - DE 2414998 A1 [0003]
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008035062A DE102008035062A1 (en) | 2008-07-26 | 2008-07-26 | Pince gripper system for use in turning drum of printing machine, has gripper shaft carrying gripper blade and supported within gripper tube, where gripper shaft and gripper tube are drivable at both ends by control drive |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008035062A DE102008035062A1 (en) | 2008-07-26 | 2008-07-26 | Pince gripper system for use in turning drum of printing machine, has gripper shaft carrying gripper blade and supported within gripper tube, where gripper shaft and gripper tube are drivable at both ends by control drive |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102008035062A1 true DE102008035062A1 (en) | 2010-01-28 |
Family
ID=41428749
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102008035062A Withdrawn DE102008035062A1 (en) | 2008-07-26 | 2008-07-26 | Pince gripper system for use in turning drum of printing machine, has gripper shaft carrying gripper blade and supported within gripper tube, where gripper shaft and gripper tube are drivable at both ends by control drive |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102008035062A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012222524A1 (en) | 2011-12-09 | 2013-06-13 | Koenig & Bauer Ag | Turning device for sheet processing machine turning drum which has pincer gripper system co-operating with cams, and is associated with four front end trajectories of cam |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2414998A1 (en) | 1974-03-28 | 1975-10-09 | Heidelberger Druckmasch Ag | TURNING DEVICE FOR A SHEET PRESSURE AND PRESSURE MACHINE WITH PLIERS |
DE102005045287A1 (en) * | 2004-10-04 | 2006-04-06 | Heidelberger Druckmaschinen Ag | Gripper control changing device for printing machine, has slide carrying control rollers, guided and axially displaced in channel of turning drum by radial stops which are arranged in channel of drum |
-
2008
- 2008-07-26 DE DE102008035062A patent/DE102008035062A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2414998A1 (en) | 1974-03-28 | 1975-10-09 | Heidelberger Druckmasch Ag | TURNING DEVICE FOR A SHEET PRESSURE AND PRESSURE MACHINE WITH PLIERS |
DE102005045287A1 (en) * | 2004-10-04 | 2006-04-06 | Heidelberger Druckmaschinen Ag | Gripper control changing device for printing machine, has slide carrying control rollers, guided and axially displaced in channel of turning drum by radial stops which are arranged in channel of drum |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012222524A1 (en) | 2011-12-09 | 2013-06-13 | Koenig & Bauer Ag | Turning device for sheet processing machine turning drum which has pincer gripper system co-operating with cams, and is associated with four front end trajectories of cam |
DE102012222524B4 (en) * | 2011-12-09 | 2021-04-08 | Koenig & Bauer Ag | Turning device in a sheet processing machine with a turning drum that has a pincer gripper system |
DE102012222524C5 (en) | 2011-12-09 | 2024-03-28 | Koenig & Bauer Ag | Turning device in a sheet processing machine with a turning drum that has a pliers gripper system |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
R005 | Application deemed withdrawn due to failure to request examination |