DE19940214B4 - Leitrakel for sheet guiding in printing presses - Google Patents
Leitrakel for sheet guiding in printing presses Download PDFInfo
- Publication number
- DE19940214B4 DE19940214B4 DE1999140214 DE19940214A DE19940214B4 DE 19940214 B4 DE19940214 B4 DE 19940214B4 DE 1999140214 DE1999140214 DE 1999140214 DE 19940214 A DE19940214 A DE 19940214A DE 19940214 B4 DE19940214 B4 DE 19940214B4
- Authority
- DE
- Germany
- Prior art keywords
- leitrakel
- suction
- perfecting
- cylinder
- bow
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
- B65H29/54—Article strippers, e.g. for stripping from advancing elements
- B65H29/56—Article strippers, e.g. for stripping from advancing elements for stripping from elements or machines
-
- 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
-
- 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
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2406/00—Means using fluid
- B65H2406/30—Suction means
- B65H2406/31—Suction box; Suction chambers
- B65H2406/312—Suction box; Suction chambers incorporating means for transporting the handled material against suction force
- B65H2406/3122—Rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2406/00—Means using fluid
- B65H2406/30—Suction means
- B65H2406/32—Suction belts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2406/00—Means using fluid
- B65H2406/30—Suction means
- B65H2406/36—Means for producing, distributing or controlling suction
- B65H2406/365—Means for producing, distributing or controlling suction selectively blowing or sucking
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
- Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
Abstract
Leitrakel zur Bogenführung in Druckmaschinen zur Durchführung des Verfahrens nach Patent Nr. 198 14 006, wobei die Leitrakel (1) wahlweise im Schöndruck oder im Schön- und Widerdruck einsetzbar ist und mit der ein Bogen (11) im Schön- und Widerdruck nach dem Prinzip der Bogenhinterkantenwendung gewendet wird und für den Schön- und Widerdruck an einem einer Wendetrommel (3) vorangestellten Zylinder (2) die eine Leitrakelspitze (1.1) und ein Endteil (1.2) aufweisende Leitrakel (1) nach dem Tangentenpunkt t2,3 angestellt ist, dadurch gekennzeichnet, dass das Endteil (1.2) als ein Saugband (12) ausgebildet ist.Leitrakel for sheet guiding in printing presses for carrying out the method according to Patent No. 198 14 006, wherein the Leitrakel (1) is used either in straight printing or perfecting and with a bow (11) in perfecting on the principle the Bogenhinterkantenwendung is turned and for the perfecting on a turning drum (3) preceded cylinder (2) a Leitrakelspitze (1.1) and an end portion (1.2) having Leitrakel (1) is set to the tangent point t 2.3 characterized in that the end part (1.2) is designed as a suction belt (12).
Description
Die Erfindung betrifft eine Leitrakel zur Bogenführung in Druckmaschinen, die wahlweise im Schöndruck oder im Schön- und Widerdruck einsetzbar ist und mit der ein Bogen im Schön- und Widerdruck nach dem Prinzip der Bogenhinterkantenwendung nach Patent
Im Hauptpatent ist eine Leitrakel beschrieben, die dem der Wendetrommel vorangestellten Zylinder zugeordnet ist. im Schön- und Widerdruck ist die Leitrakel, die eine Leitrakelspitze und ein Endteil aufweist, zum Zylinder zugestellt, wobei die Leitrakel in Bogenlaufrichtung weisende Schlitzdüsen aufweist und am Endteil der Leitrakel in Bogenlaufrichtung gegenüber einer oberen Bezugsfläche mit zunehmendem Abstand verlaufende, quer zur Bogenlaufrichtung zueinander beabstandete, parallel angeordnete Führungsstege vorgesehen sind. Die obere Bezugsfläche wird durch ein Oberblech oder durch eine Strömungsfläche gebildet und an den Führungsstegen sind pneumatisch beaufschlagbare Schlitzdüsen vorgesehen.In the main patent a Leitrakel is described, which is assigned to the turning drum preceded cylinder. in perfecting the Leitrakel having a Leitrakelspitze and an end portion, delivered to the cylinder, the Leitrakel pointing in the sheet running direction slot nozzles and spaced at the end of the Leitrakel in the sheet running direction with respect to an upper reference surface with increasing distance, transversely to the sheet travel direction spaced , parallel guide webs are provided. The upper reference surface is formed by a top plate or by a flow surface and on the guide webs are pneumatically actuated slot nozzles provided.
Des Weiteren sind den Führungsstegen das Oberblech oder die Strömungsfläche zugeordnet und der Abstand der Führungsstege zum Oberblech oder zur Strömungsfläche nimmt im Querschnitt in Strömungsrichtung der Luft stetig zu.Furthermore, the guide webs are associated with the upper plate or the flow surface and the distance of the guide webs to the upper plate or the flow area increases in cross-section in the flow direction of the air steadily.
Aus der
Ausgehend vom Gegenstand des Hauptpatentes ist es Aufgabe der Erfindung, die Bogenführung an der Leitrakel sicherer auszugestalten.Starting from the subject of the main patent, it is an object of the invention to design the sheet guide on the Leitrakel safer.
Erfindungsgemäß wird diese Aufgabe durch die Merkmale des 1. oder 2. Anspruchs gelöst.According to the invention, this object is achieved by the features of the first or second claim.
Die Ausgestaltung des Endteils der Leitrakel als umlaufendes Saugband oder als zueinander beabstandete rotativ angetriebene Saugwalzen – wobei die Bewegung von Saugband und Saugwalzen in Bewegungsrichtung des Bogens geht – hat den Vorteil, dass keine Relativbewegung zwischen Bogen und Saugband bzw. Saugwalzen stattfindet. Damit wird der Bogen, auch infolge der Saugwirkung auf den Bogen, sicher und ohne zu stauchen, an der Leitrakel geführt. Von bzw. während der Bewegungsumkehr des Bogens wird die Saugluft ab- und auf Blasluft umgestellt. Dadurch wird der abziehende, gewendete Bogen von der Leitrakel weggedrückt, so dass der nachfolgende zu wendende Bogen ohne Behinderung von der Leitrakel geführt werden kann.The design of the end portion of the Leitrakel as revolving suction belt or as mutually spaced rotatively driven suction rollers - the movement of the suction belt and suction rolls in the direction of movement of the sheet - has the advantage that no relative movement between the sheet and suction belt or suction rolls takes place. Thus, the bow, also due to the suction effect on the sheet, safely and without upsetting, led to the Leitrakel. From or during the movement reversal of the arc, the suction air is switched off and switched to blown air. As a result, the withdrawing, turned arc is pushed away from the Leitrakel, so that the subsequent sheet to be turned without hindrance can be performed by the Leitrakel.
Anhand eines Ausführungsbeispieles soll nachfolgend die Erfindung näher beschrieben werden.Reference to an embodiment, the invention will be described in more detail below.
In den Zeichnungen zeigen:In the drawings show:
Die Wendetrommel
In Längsrichtung der Druckmaschine geht die Leitrakel
Die Wirkungsweise der Einrichtung im Schön- und Widerdruck ist folgende:
Auf bekannte Art wird auf den Bogen
In a known way is on the
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- LeitrakelLeitrakel
- 1.11.1
- LeitrakelspitzeLeitrakelspitze
- 1212
- Endteilend
- 22
- Druckzylinder, Speichertrommel, ZylinderPrinting cylinder, storage drum, cylinder
- 33
- Wendetrommelbeater
- 44
- BogenführungszylinderSheet guiding cylinder
- 55
- Saugersystemsuction system
- 66
- Greifersystemgripper system
- 77
- Greiferwellegripper shaft
- 88th
- Greifergrab
- 99
- Bogenleiteinrichtungsheet guiding device
- 1010
- Oberblechupper sheet
- 1111
- Bogenbow
- 1212
- Saugbandsuction belt
- 1313
- Rollenroll
- 1414
- Saugkammersuction chamber
- 1515
- Saugwalzensuction rolls
- 1616
- Unterblechunder sheet
- 1717
- Ausschnittecutouts
- 1818
- Schlitzdüsenslot dies
- t2,4 t 2,4
- Tangentenpunkttangent point
- t2,3 t 2,3
- Tangentenpunkttangent point
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1999140214 DE19940214B4 (en) | 1998-03-28 | 1999-08-25 | Leitrakel for sheet guiding in printing presses |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19814006A DE19814006C1 (en) | 1998-03-28 | 1998-03-28 | Sheet guiding method for printer |
DE1999140214 DE19940214B4 (en) | 1998-03-28 | 1999-08-25 | Leitrakel for sheet guiding in printing presses |
Publications (2)
Publication Number | Publication Date |
---|---|
DE19940214A1 DE19940214A1 (en) | 2001-03-01 |
DE19940214B4 true DE19940214B4 (en) | 2014-03-06 |
Family
ID=26045095
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1999140214 Expired - Lifetime DE19940214B4 (en) | 1998-03-28 | 1999-08-25 | Leitrakel for sheet guiding in printing presses |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE19940214B4 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006026667A1 (en) * | 2006-06-08 | 2007-12-13 | Koenig & Bauer Aktiengesellschaft | Apparatus and method for guiding sheets in printing machines |
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 |
DE102015209687B4 (en) | 2014-06-18 | 2020-07-02 | Koenig & Bauer Ag | Turning device and method for turning sheets |
DE102015209689B4 (en) | 2014-06-18 | 2021-03-25 | Koenig & Bauer Ag | Turning device for a sheet processing machine and method for turning sheets |
CN107444936B (en) * | 2017-09-13 | 2019-03-22 | 河南省新斗彩印刷有限公司 | Automatically upper paper point is folded turns over a device for offset printing corrugation facing machine corrugated plate |
CN111847027B (en) * | 2019-04-25 | 2024-05-17 | 秦皇岛烟草机械有限责任公司 | Tobacco flake turn-over device |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD54703A1 (en) * | 1966-04-30 | 1967-03-20 | Rudolph Otfried | Sheet guiding device in multicolour sheet-fed rotary printing machines |
DE4424968A1 (en) * | 1994-07-15 | 1996-01-18 | Kba Planeta Ag | Sheet guiding during turning on rotary printing machine |
DE19814006C1 (en) * | 1998-03-28 | 1999-06-02 | Koenig & Bauer Ag | Sheet guiding method for printer |
-
1999
- 1999-08-25 DE DE1999140214 patent/DE19940214B4/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD54703A1 (en) * | 1966-04-30 | 1967-03-20 | Rudolph Otfried | Sheet guiding device in multicolour sheet-fed rotary printing machines |
DE4424968A1 (en) * | 1994-07-15 | 1996-01-18 | Kba Planeta Ag | Sheet guiding during turning on rotary printing machine |
DE19814006C1 (en) * | 1998-03-28 | 1999-06-02 | Koenig & Bauer Ag | Sheet guiding method for printer |
Also Published As
Publication number | Publication date |
---|---|
DE19940214A1 (en) | 2001-03-01 |
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AF | Is addition to no. |
Ref document number: 19814006 Country of ref document: DE |
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8110 | Request for examination paragraph 44 | ||
8127 | New person/name/address of the applicant |
Owner name: KOENIG & BAUER AKTIENGESELLSCHAFT, 97080 WUERZB, DE |
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R016 | Response to examination communication | ||
R016 | Response to examination communication | ||
R018 | Grant decision by examination section/examining division | ||
R020 | Patent grant now final | ||
R020 | Patent grant now final |
Effective date: 20141209 |
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R071 | Expiry of right |