DE4130679A1 - Appts. preventing damage to rotary printer mechanism - ensures cutting of paper strip before and behind printing station as soon as tearing is detected - Google Patents
Appts. preventing damage to rotary printer mechanism - ensures cutting of paper strip before and behind printing station as soon as tearing is detectedInfo
- Publication number
- DE4130679A1 DE4130679A1 DE19914130679 DE4130679A DE4130679A1 DE 4130679 A1 DE4130679 A1 DE 4130679A1 DE 19914130679 DE19914130679 DE 19914130679 DE 4130679 A DE4130679 A DE 4130679A DE 4130679 A1 DE4130679 A1 DE 4130679A1
- Authority
- DE
- Germany
- Prior art keywords
- web
- printing
- printing unit
- unit
- computing
- 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.)
- Granted
Links
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
- B65H26/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms
- B65H26/02—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms responsive to presence of irregularities in running webs
- B65H26/025—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms responsive to presence of irregularities in running webs responsive to web breakage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
- B41F33/18—Web break detection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2513/00—Dynamic entities; Timing aspects
- B65H2513/10—Speed
Landscapes
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
Abstract
Description
Die Erfindung betrifft eine Vorrichtung und ein Verfahren zum Verhindern von Druckwerkschäden in Rollenrotations-Druckmaschinen mit einer Bedruckstoffbahn-Überwachungseinrichtung und mit einer Einrichtung zum Trennen der Bedruckstoffbahn oder Abschaltung des Druckmaschinenantriebes.The invention relates to an apparatus and a method for preventing Printing unit damage in web-fed rotary printing presses with one Substrate web monitoring device and with a device for Separate the substrate or switch off the press drive.
In Rollenrotations-Druckmaschinen besteht bekanntlich die Gefahr, daß bei einem Reißen der Bedruckstoffbahn, beispielsweise einer herkömmlichen Papierbahn, durch Aufwickeln derselben eine erhebliche Beschädigung der Druckwerkzylinder auftritt. Um dies zu verhindern, sind bereits licht-elektrische Meßvorrichtungen bekannt geworden, mittels denen bei einem Bahnriß auf elektrischem Weg der Druckmaschinenantrieb stillgesetzt wird oder zum Durchtrennen der Papierbahn betätigbare quer zur Laufrichtung derselben angeordnete Abschlagvorrichtung aktiviert wird.As is known, in web-fed rotary printing machines there is a risk that at a tearing of the printing material web, for example a conventional one Paper web, by winding up the same a considerable damage to the Printing unit cylinder occurs. To prevent this from happening already Light-electrical measuring devices have become known, by means of which in one Web break electrically stopped the press drive or operable to sever the paper web transversely to the direction of travel the same arranged tee device is activated.
Eine derartige Vorrichtung ist aus der DE-PS 21 56 506 bekannt. Ein Reißen der Bedruckstoffbahn wird mittels einer licht-elektrischen Überwachungseinrichtung festgestellt, die vorzugsweise beidseitig der Bedruckstoffbahn angeordnet werden. Die Überwachungseinrichtung leitet bei einem Bahnriß Aktionen zur Verhinderung von sogenannten Wicklern und somit der Beschädigung eines Druckwerks ein. Jedoch stellt sich im Zuge der stetig höher gewordenen Bahngeschwindigkeiten der Rotationsdruckmaschinen die Ansprechverzögerung derartiger Vorrichtungen zunehmend als Problem dar.Such a device is known from DE-PS 21 56 506. A tear the printing material web is light-electric Monitoring device found, preferably on both sides of the Printing material web are arranged. The monitoring device conducts a web break actions to prevent so-called winders and thus damage to a printing unit. However, in the course of the steadily higher web speeds of the rotary printing presses Delay in response of such devices is becoming an increasing problem.
Davon ausgehend ist es die Aufgabe der Erfindung, eine Vorrichtung und ein Verfahren zum Verhindern von Druckwerkschäden in Rollenrotations-Druckmaschinen zu schaffen, mit der eine Reduzierung der Ansprechgeschwindigkeit zu erreichen ist. Based on this, it is the object of the invention, a device and a Process for preventing printer damage in To create web-fed rotary printing presses with a reduction of Response speed can be reached.
Diese Aufgabe wird durch die Anwendung der Merkmale des kennzeichnenden Teils des Anspruchs 1 gelöst.This task is accomplished by applying the characteristics of the characteristic Part of claim 1 solved.
Die verfahrensmäßige Lösung dieser Aufgabe ist im kennzeichnenden Teil des Anspruchs 7 enthalten.The procedural solution to this problem is in the characterizing part of Claim 7 included.
Im folgenden wird die Erfindung anhand eines Ausführungsbeispiels beschrieben, wobei Bezug auf die beiliegende Zeichnung genommen wird. In dieser zeigt schematisch:The invention is described below using an exemplary embodiment described, reference being made to the accompanying drawing. In this shows schematically:
Fig. 1 den prinzipiellen Aufbau der erfindungsgemäßen Vorrichtung; Figure 1 shows the basic structure of the device according to the invention.
Fig. 2 die verfahrensmäßige Lösung. Fig. 2 shows the procedural solution.
In Fig. 1 ist eine eine laufende Bedruckstoffbahn 1 beidseitig bedruckende Druckeinheit 2 in Y-Bauweise, also mit 3 Druckwerken gezeigt. Die Gummituchzylinder sind mit 3, 4 und 5 und die jeweils dazugehörigen Plattenzylinder, denen nicht gezeichnete Farb- und Feuchtwerke zugeordnet sind, mit 6, 7 und 8 bezeichnet. In Laufrichtung der Bedruckstoffbahn 1 ist in der dargestellten Weise vor und hinter dem Druckwerk 2 je ein erstes Bahnführungsmittel 9, 10 in Form einer Papierleitwalze angeordnet. In jedem Bahnführungsmittel 9, 10 ist in an sich bekannter Weise ein elektrischer Impulsgeber 11, 12 (Fig. 2) in Form eines Winkelencoders integriert. Vor dem Einlauf der Bedruckstoffbahn 1 in die Druckeinheit 2 ist zwischen dem Bahnführungsmittel 9 und der Druckeinheit 2 und nach dem Auslauf zwischen der Druckeinheit 2 und dem ersten Bahnführungsmittel 10 je eine Papierabschlagsvorrichtung 15, 16 vorgesehen. Beide elektrische Impulsgeber 11, 12 sind mit einer Rechen- und Steuereinheit 14 (Fig. 2) verbunden, die eine Steuerleitung 14 (Fig. 2) zu den beiden Papierabschlagvorrichtungen 15, 16 aufweist.In Fig. 1 a running printing material web 1 is printed on both sides printing unit 2 in a Y design, that is, with 3 printing units. The blanket cylinders are designated 3 , 4 and 5 and the associated plate cylinders, which are not assigned inking and dampening units, are designated 6 , 7 and 8 . In the running direction of the substrate web 1 is in the illustrated manner before and after the printing unit 2 depending on a first web guide means 9, 10 are arranged in the form of a paper roll. An electrical pulse generator 11 , 12 ( FIG. 2) in the form of an angle encoder is integrated in a manner known per se in each web guide means 9 , 10 . Before the printing material web 1 enters the printing unit 2 , a paper chopping device 15 , 16 is provided between the web guiding means 9 and the printing unit 2 and after the outlet between the printing unit 2 and the first web guiding means 10 . Both electrical pulse generators 11 , 12 are connected to a computing and control unit 14 ( FIG. 2), which has a control line 14 ( FIG. 2) to the two paper cutting devices 15 , 16 .
Der grundsätzliche Aufbau und die Wirkungsweise einer Papierabschlagvorrichtung sind an sich bekannt und bedürfen daher im vorliegenden Zusammenhang keiner eingehenderen Erläuterung mehr. The basic structure and mode of operation of a Paper chopping device are known per se and therefore require in present connection no longer detailed explanation.
Fig. 2 zeigt die wesentlichen Verfahrensschritte zum Verhindern von Druckwerkschäden in Rollenrotations-Druckmaschinen. Die Winkelencoder 11, 12 wandeln die Winkelgeschwindigkeiten der von der Bedruckstoffbahn 1 angetriebenen Papierleitwalzen 9, 10 und somit indirekt die Geschwindigkeit der Bedruckstoffbahn 1 in elektrische Impulse um, die zum Vergleich in die Rechen- und Steuereinheit 13 weitergeleitet werden. Die elektrischen Impulse der beiden Impulsgeber 11, 12 werden in der Rechen- und Steuereinheit 13 auf Übereinstimmung verglichen. Ist die Unstimmigkeit kleiner als z. B. 5% eines Sollwertes, gilt die Bedruckstoffbahn als unversehrt. Bei einem Bahnriß verlangsamt sich die Bedruckstoffbahn 1 vor dem Riß und somit auch das Bahnführungsmittel 9. Die Rechen- und Steuereinheit 13 kann jedoch in der der Elektronik zugrundeliegenden Geschwindigkeit reagieren. Bei einer Unstimmigkeit ab 5% des Sollwertes der Winkelgeschwindigkeit der Bahnführungsmittel 9, 10, wobei dieser prozentuale Wert vorgebbar ist, werden über die Steuerleitung 14 die beiden Papierabschlagvorrichtungen 15, 16 aktiviert und die Bedruckstoffbahn 1 quer zu ihrer Laufrichtung durchtrennt. Fig. 2 shows the main method steps for preventing damage to printing in web-fed rotary printing machines. The angle encoders 11 , 12 convert the angular speeds of the paper guide rollers 9 , 10 driven by the printing material web 1 and thus indirectly the speed of the printing material web 1 into electrical impulses, which are forwarded to the computing and control unit 13 for comparison. The electrical pulses of the two pulse generators 11 , 12 are compared in the computing and control unit 13 for agreement. If the discrepancy is less than z. B. 5% of a target value, the substrate web is considered intact. In the event of a web break, the printing material web 1 slows down before the tear and thus also the web guiding means 9 . However, the computing and control unit 13 can react at the speed on which the electronics are based. If there is a discrepancy from 5% of the nominal value of the angular velocity of the web guiding means 9 , 10 , this percentage value being specifiable, the two paper-cutting devices 15 , 16 are activated via the control line 14 and the printing material web 1 is severed transversely to its direction of travel.
Die vorgebbare Größe der tolerierbaren Unstimmigkeit der elektrischen Impulse von den Impulsgebern 11, 12 bestimmen im wesentlichen die Ansprechgeschwindigkelt der Vorrichtung. Eine vorteilhafte Weiterbildung und zweckmäßige Ausgestaltung zur weiteren Erhöhung der Ansprechgeschwindigkeit der übergeordneten Vorrichtungsmaßnahmen ist die Verwendung von extrem trägheitsarmen, von der Bedruckstoffbahn angetriebene Rollen als erste Bahnführungsmittel vor und nach einer Druckeinheit.The predeterminable size of the tolerable discrepancy of the electrical pulses from the pulse generators 11 , 12 essentially determine the response speed of the device. An advantageous further development and expedient embodiment for further increasing the response speed of the higher-level device measures is the use of extremely low-inertia rollers driven by the printing material web as first web guiding means before and after a printing unit.
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE19914130679 DE4130679C2 (en) | 1991-09-14 | 1991-09-14 | Device for preventing printing unit damage |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19914130679 DE4130679C2 (en) | 1991-09-14 | 1991-09-14 | Device for preventing printing unit damage |
Publications (2)
Publication Number | Publication Date |
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DE4130679A1 true DE4130679A1 (en) | 1993-03-18 |
DE4130679C2 DE4130679C2 (en) | 1994-02-24 |
Family
ID=6440662
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19914130679 Expired - Fee Related DE4130679C2 (en) | 1991-09-14 | 1991-09-14 | Device for preventing printing unit damage |
Country Status (1)
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DE (1) | DE4130679C2 (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2734513A1 (en) * | 1995-05-22 | 1996-11-29 | Heidelberg Harris Sa | METHOD OF DETECTING DISTURBANCES IN THE TRANSPORT OF A CONTINUOUS TABLET OF PAPER IN A PRINTING MACHINE |
EP0903311A1 (en) * | 1997-09-19 | 1999-03-24 | Kabushiki Kaisha Yuyama Seisakusho | Device for adjusting tension applied to web |
US5967445A (en) * | 1996-09-20 | 1999-10-19 | Kabushiki Kaisha Yuyama Seisakusho | Method of adjusting tension applied to sheet, and device for the same |
FR2778868A1 (en) * | 1998-05-19 | 1999-11-26 | Zirkon Druckmaschinen Gmbh | DEVICE FOR AVOIDING DAMAGE TO PRINTING MACHINES |
EP1084976A2 (en) * | 1999-09-20 | 2001-03-21 | Voith Sulzer Papiertechnik Patent GmbH | Guide or contact roller for handling material web, in particular in a roll winding device |
DE10027442A1 (en) * | 2000-06-02 | 2001-12-06 | Roland Man Druckmasch | Method and device for detecting web breaks |
US6598529B2 (en) | 2000-07-14 | 2003-07-29 | Heidelberger Druckmaschinen Ag | Method and device for detecting faults during transport of a web |
WO2003095348A1 (en) * | 2002-05-02 | 2003-11-20 | Koenig & Bauer Aktiengesellschaft | Device and method for detecting web breakage in a web processing machine |
DE10222586A1 (en) * | 2002-05-22 | 2003-12-04 | Voith Paper Patent Gmbh | Paper or carton web coating assembly has guillotine cutter on web feed inlet side and second guillotine cutter on web output side |
DE10222587A1 (en) * | 2002-05-22 | 2003-12-04 | Voith Paper Patent Gmbh | Paper coating station has automated emergency water cooling system triggered by unplanned termination of web feed, break or tear |
WO2008025306A1 (en) * | 2006-08-30 | 2008-03-06 | Siemens Aktiengesellschaft | Method for monitoring a conveyor device and facility for carrying out said method |
CN103434877A (en) * | 2013-08-20 | 2013-12-11 | 浙江华章科技有限公司 | Rewinder broken paper detecting method |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19506463C2 (en) * | 1995-02-24 | 1998-11-12 | Boewe Systec Ag | Jam monitoring device for a transport device for paper, in particular for a paper web |
DE102004005041A1 (en) * | 2004-02-02 | 2005-08-18 | Eduard Küsters Maschinenfabrik GmbH | Monitoring textile web passing through calender, measures and compares web entry- and exit velocities, stopping the machine on difference |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2156506C (en) * | 1971-11-13 | 1973-06-14 | Maschinenfabrik Augsburg Nürnberg AG, 8900 Augsburg | Device for photoelectric monitoring of paper web breaks on web-fed rotary printing machines |
US3928844A (en) * | 1974-06-17 | 1975-12-23 | Butler Automatic Inc | Web break detector system |
US4078487A (en) * | 1977-03-23 | 1978-03-14 | Baldwin-Korthe Web Controls Inc. | Control method and control for a web processing machine |
DE2951246A1 (en) * | 1978-12-29 | 1980-07-17 | Harris Corp | ROLL PRINTING MACHINE |
-
1991
- 1991-09-14 DE DE19914130679 patent/DE4130679C2/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2156506C (en) * | 1971-11-13 | 1973-06-14 | Maschinenfabrik Augsburg Nürnberg AG, 8900 Augsburg | Device for photoelectric monitoring of paper web breaks on web-fed rotary printing machines |
US3928844A (en) * | 1974-06-17 | 1975-12-23 | Butler Automatic Inc | Web break detector system |
US4078487A (en) * | 1977-03-23 | 1978-03-14 | Baldwin-Korthe Web Controls Inc. | Control method and control for a web processing machine |
DE2951246A1 (en) * | 1978-12-29 | 1980-07-17 | Harris Corp | ROLL PRINTING MACHINE |
Non-Patent Citations (1)
Title |
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JP 62-1 05 856 A in PA of J, M-634, Oct. 21, 1987, Vol. 11/No. 323 * |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19611878B4 (en) * | 1995-05-22 | 2005-10-27 | Goss International Montataire S.A. | Method for fault detection in the transport of a continuous paper web in a printing machine |
FR2734513A1 (en) * | 1995-05-22 | 1996-11-29 | Heidelberg Harris Sa | METHOD OF DETECTING DISTURBANCES IN THE TRANSPORT OF A CONTINUOUS TABLET OF PAPER IN A PRINTING MACHINE |
US5967445A (en) * | 1996-09-20 | 1999-10-19 | Kabushiki Kaisha Yuyama Seisakusho | Method of adjusting tension applied to sheet, and device for the same |
US6059222A (en) * | 1996-09-20 | 2000-05-09 | Kabushiki Kaisha Yuyama Seisakusho | Method of adjusting tension applied to sheet, and device for the same |
US6286780B1 (en) | 1996-09-20 | 2001-09-11 | Kabushiki Kaisha Yuyama Seisakusho | Method of adjusting tension applied to sheet, and device for the same |
US6301862B1 (en) | 1996-09-20 | 2001-10-16 | Kabushiki Kaisha Yuyama Seisakusho | Method of adjusting tension applied to sheet, and device for the same |
USRE45949E1 (en) | 1996-09-20 | 2016-03-29 | Yuyama Mfg. Co., Ltd. | Method of adjusting tension applied to sheet, and device for the same |
USRE45846E1 (en) | 1996-09-20 | 2016-01-19 | Kabushiki Kaisha Yuyama Seisakusho | Method adjusting tension applied to sheet, and device for the same |
EP0903311A1 (en) * | 1997-09-19 | 1999-03-24 | Kabushiki Kaisha Yuyama Seisakusho | Device for adjusting tension applied to web |
FR2778868A1 (en) * | 1998-05-19 | 1999-11-26 | Zirkon Druckmaschinen Gmbh | DEVICE FOR AVOIDING DAMAGE TO PRINTING MACHINES |
EP1084976A2 (en) * | 1999-09-20 | 2001-03-21 | Voith Sulzer Papiertechnik Patent GmbH | Guide or contact roller for handling material web, in particular in a roll winding device |
EP1084976A3 (en) * | 1999-09-20 | 2002-09-18 | Voith Paper Patent GmbH | Guide or contact roller for handling material web, in particular in a roll winding device |
DE10027442B4 (en) * | 2000-06-02 | 2005-12-01 | Man Roland Druckmaschinen Ag | Method and device for detecting web breaks |
DE10027442A1 (en) * | 2000-06-02 | 2001-12-06 | Roland Man Druckmasch | Method and device for detecting web breaks |
US6598529B2 (en) | 2000-07-14 | 2003-07-29 | Heidelberger Druckmaschinen Ag | Method and device for detecting faults during transport of a web |
WO2003095348A1 (en) * | 2002-05-02 | 2003-11-20 | Koenig & Bauer Aktiengesellschaft | Device and method for detecting web breakage in a web processing machine |
DE10222587A1 (en) * | 2002-05-22 | 2003-12-04 | Voith Paper Patent Gmbh | Paper coating station has automated emergency water cooling system triggered by unplanned termination of web feed, break or tear |
DE10222586A1 (en) * | 2002-05-22 | 2003-12-04 | Voith Paper Patent Gmbh | Paper or carton web coating assembly has guillotine cutter on web feed inlet side and second guillotine cutter on web output side |
WO2008025306A1 (en) * | 2006-08-30 | 2008-03-06 | Siemens Aktiengesellschaft | Method for monitoring a conveyor device and facility for carrying out said method |
CN103434877A (en) * | 2013-08-20 | 2013-12-11 | 浙江华章科技有限公司 | Rewinder broken paper detecting method |
Also Published As
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DE4130679C2 (en) | 1994-02-24 |
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