EP0509278A1 - Device for controlling the sheet run in the region of laymarks in sheet offset printing machines - Google Patents
Device for controlling the sheet run in the region of laymarks in sheet offset printing machines Download PDFInfo
- Publication number
- EP0509278A1 EP0509278A1 EP92105104A EP92105104A EP0509278A1 EP 0509278 A1 EP0509278 A1 EP 0509278A1 EP 92105104 A EP92105104 A EP 92105104A EP 92105104 A EP92105104 A EP 92105104A EP 0509278 A1 EP0509278 A1 EP 0509278A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sheet
- scanning
- machine
- printing
- marks
- 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
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
- B41F21/12—Adjusting leading edges, e.g. front stops
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H7/00—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
- B65H7/02—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors
- B65H7/06—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to presence of faulty articles or incorrect separation or feed
- B65H7/08—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to presence of faulty articles or incorrect separation or feed responsive to incorrect front register
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
- B65H2511/20—Location in space
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
- B65H2511/20—Location in space
- B65H2511/21—Angle
- B65H2511/212—Rotary position
-
- 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
- B65H2513/50—Timing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2553/00—Sensing or detecting means
- B65H2553/40—Sensing or detecting means using optical, e.g. photographic, elements
- B65H2553/41—Photoelectric detectors
Definitions
- the invention relates to a device for controlling sheet travel in the area of the application marks of sheet-fed offset printing machines according to the preamble of claim 1.
- the sheets to be printed are removed from the feeder stack via a conveyor table, which is designed in particular as a suction belt table (DE 3 138 481 C2), to the feed marks.
- a conveyor table which is designed in particular as a suction belt table (DE 3 138 481 C2), to the feed marks.
- An alignment of the front edge of the sheet in the sheet running direction then takes place on the application marks, in particular by additional conveying devices (DE 3 331 662 C2), as well as an alignment of the sheet side edge (side mark).
- a cam-controlled pre-gripper grips this printed sheet and, after the application marks have been pivoted away, the pre-gripper transfers the printed sheet directly to the gripper system of the impression cylinder, for example.
- the movements of the contact marks are generated by gears with cam rollers and roller levers, pawls being provided, the engagement of which can be used to interrupt the movements (blocking of the sheet run).
- the blanket cylinder is mounted eccentrically on both sides and can be completely turned off by turning this eccentric mounting of both counterpressure and plate cylinders, for coloring the blanket only on the plate cylinder, but not on the impression cylinder is adjustable, and can be adjusted on plate and impression cylinders.
- the eccentric bearings are also rotated by cam rollers, roller levers and controllable pawls.
- the blanket cylinder is turned on and off on the plate and impression cylinders at the time of the so-called channel correspondence of the corresponding printing unit cylinders, i.e. exactly when the cylinder channels roll against each other.
- the sheet scanning devices according to the prior art not only serve to control the sheet infeed while the machine is running, ie the printing press in the print-on position, but also serve to control the sheet infeed in the machine in the print-down position, in which case after detection of a first sheet correctly conveyed to the feed marks, the blocking of the sheet run (feed marks, pre-gripper) is lifted and the blanket cylinder is first placed on the plate cylinder and then on the impression cylinder which carries this first printing sheet.
- the sheet tends to rebound somewhat from the feed marks (high impact speed), but then to calm down again on its own, i.e. to apply correctly to the contact marks. If the sheet is scanned at a point in time at which the sheet has not yet calmed down (shortly after arrival), such a device for checking the sheet inlet will cause the sheet to be blocked.
- Such a rigid assignment of the sampling time to a fixed angular value of a single-turn shaft has the disadvantage that, in certain printing unit and pre-gripper arrangements, the sampling time must be assigned to an angular value of the single-turn shaft at which the triggering of the print-on actuating process and the release of the sheet travel are still required is possible.
- Such printing unit and pre-gripper arrangements are characterized in that the angular value of a single-turn shaft, in which the blanket cylinder can be adjusted to the plate cylinder (channel correspondence) lies before the angular value, at which the release of the sheet path is possible (swiveling off the feed marks, triggering the pre-gripper) and this in turn lies in front of the angle value at which the blanket cylinder can be adjusted to the impression cylinder.
- the sampling time must be assigned an angle value that corresponds to the sheet travel control in the print-down position.
- the sampling time (angle value) must therefore be placed in front of the angle value for the blanket cylinder against plate cylinder.
- the time (the angular value interval) between the angular value for placing the blanket cylinder on the plate cylinder and the angular value for releasing the sheet travel cannot be used. The sheet is therefore not given enough time to calm down at the feed marks. If the printing press is in the print-on position, false triggering can often occur, i.e.
- DE 4 019 293 A1 describes a device for sheet control on the feed marks of printing presses, in which the scanning time is provided variably and inversely proportional to the machine speed. In this way, an increased time for calming the sheets on the feed marks is to be achieved.
- a device only takes into account the dead time of the organs causing the blocking or releasing of the sheet travel and the switching on and off of the printing unit cylinders. If the machine speed is increased, the sampling time is therefore brought forward. In the printing unit and pre-gripper arrangements described above, the time for calming the sheet is certainly not increased.
- the object of the present invention is therefore to design a device according to the preamble of claim 1 such that, in all arrangements of the printing unit cylinder and the arrangement of the pre-gripper for the impression cylinder, the sheet has a longest possible calming time at the application marks even at the highest machine speeds.
- a printing unit of a sheet-fed offset printing machine is shown, which is characterized by the property described in the introduction to the description with regard to the printing unit and pre-gripper arrangement.
- an impression cylinder GD, a blanket cylinder GT and a plate cylinder PZ work together.
- the hatched areas of these cylinders represent their channels. It can be seen that this is a double-sized impression cylinder GD, but this is not a necessary prerequisite for the above property.
- the printing unit according to Fig. 2a) is in a position in which a previous sheet is still being printed, another, new sheet is currently being grasped by the pre-gripper VG. This new arch is in the area of the system, not shown.
- Fig. 1 shows the angular diagram of a single-turn shaft of the printing unit according to Fig. 2a) over more than one revolution.
- This angle diagram was calibrated to the position of the printing unit according to FIG. 2a), that is to say to exactly the position in which a new printing sheet is gripped by the pre-gripper VG on the system.
- the letters b) to g) indicate the angle values of the printing cylinder positions according to FIGS. 2b) to 2g). It can be seen that these angular values are those positions in which the printing end DE of the blanket cylinder GT and impression cylinder GD corresponds to one another (FIG.
- the shift pawls can only be in these positions according to FIG. 2c) and FIG. 2f) (more precisely: in a small angular range around these positions) be indented into corresponding notches. Since the actuators which cause this still have a certain reaction time, the switching times which cause the engagement or disengagement of the switching pawls have to be brought forward accordingly. The same applies to the switching time for switching the pre-gripper on and off, and the lay-on marks (enabling or disabling the sheet path).
- X is the angular value of the single-turn shaft, at which the paper run-up of a sheet to the contact mark takes place. If the printing unit is in the print-down state (command given for print-on) and a new sheet reaches the feed mark at the angular value X, then an angular value that has to lie approximately in the interval between e) and f) must have Command to engage the engagement of the pawl, so that the blanket cylinder GT is then turned on the plate cylinder PZ in the interval between f) and e). Thereupon, up to the angular value a), a second actuating command must be issued so that the sheet travel is released, that is to say the pre-gripper VG detects this first new sheet.
- the angular value between b) and c) is then applied to the blanket cylinder GT against the impression cylinder GD, since the sheet has already been transferred to the impression cylinder and thus through the now colored blanket cylinder GT can be printed. Because of the described arrangement of the printing unit and the resulting processes in relation to the single-turn shaft, in the print-down state the sampling time at angle value A for the first sheet definitely has before angle value f, because of the already mentioned reaction times of the actuators to be the angular value e). This results from the fact that the rubber blanket cylinder GT is to be turned on the plate cylinder PZ in sequence, then the release of the sheet travel is to be switched, whereupon the blanket cylinder GT is turned on the impression cylinder GD.
- the machine If the machine is in the print-on state, it can be seen, as in the diagram under FIG. 1, that in the event of a missing sheet the sheet travel must first be blocked. Then has the blanket cylinder GT from the impression cylinder GD (channel correspondence; interval b) - d)) and then the blanket cylinder GT from the plate cylinder PZ (channel correspondence; interval e) - g)). If the sheet scan is also carried out in the machine state, print-on, at a sampling time, which is given by the angle value A (FIG. 1), it can be seen that, at high machine speeds, only a very short time interval is available to the sheet at the application marks for its reassurance .
- the angle value A FIG. 1
- a device for controlling the sheet travel according to the invention is shown schematically.
- the reference numeral 1 denotes a contact table, at the end of which, as is generally known, pivotable contact marks 2 are arranged.
- a sheet 3 is aligned with these contact marks 2 both in the sheet running direction and laterally thereto.
- one or more sheet scanning devices 4 are arranged in the area of the application marks, which, as indicated in FIG. 3, can be designed as so-called reflective light barriers.
- Other scanning devices such as mechanical touch probes, ultra-acoustic or capacitive probes are also conceivable.
- two sheet scanning devices 4 can be provided which detect the leading edge of the sheet at two points which are located apart.
- the sheet scanning device 4 is followed by an evaluation unit 5, which on the one hand the sheet scanning device 4 supplies the necessary operating voltage, but on the other hand also evaluates the output signal supplied by the sheet scanning devices 4 at the times of the angle values A or B with respect to good or missing sheets, so that a signal can be fed to a control device 6.
- the evaluation unit 5 is operatively connected to a clock generator 7, from which, as shown in the diagram according to FIG. 1, pulses corresponding to two angle values A, B of the single-turn shaft can be taken.
- the information about whether the machine is in the pressure-on or pressure-down state can be fed to the evaluation unit 5 via a line machine state 8.
- the pulse at angle value A or pulse at angle value B is thus used by the sheet scanning device 4 for the sampling time or evaluation time.
- the sheet scanning can be a "real" scanning at the times of the angle values A, B or else a continuous measurement by the sheet scanning device 4, the output signal being evaluated by the evaluation unit 5 at the times A, B.
- the control device 6 controls the organs which block or release the sheet travel as well as the pressure on and pressure down, the control device 6 likewise with pulses at certain angle values is supplied, in which the corresponding switching operations are to be triggered (for example also by the clock 7).
- the control device 6 is also supplied with the commands for pushing on and pushing off via lines (not shown).
Landscapes
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Controlling Sheets Or Webs (AREA)
- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zur Kontrolle des Bogenlaufes im Bereich der Anlegmarken von Bogen-Offsetdruckmaschinen gemäß dem Oberbegriff von Anspruch 1.The invention relates to a device for controlling sheet travel in the area of the application marks of sheet-fed offset printing machines according to the preamble of claim 1.
Bei den heute geforderten hohen Maschinengeschwindigkeiten von Bogenoffsetdruckmaschinen werden die zu bedruckenden Bogen nach der Abnahme vom Anlegerstapel über einen Fördertisch, der insbesondere als Saugbändertisch (DE 3 138 481 C2) ausgebildet ist, geschuppt zu den Anlegmarken gefördert. An den Anlegmarken erfolgt dann eine Ausrichtung der Bogenvorderkante in Bogenlaufrichtung, insbesondere durch zusätzliche Fördereinrichtungen (DE 3 331 662 C2) als auch eine Ausrichtung der Bogenseitenkante (Seitenmarke). Nach dem Ausrichtevorgang faßt ein kurvengesteuerter Vorgreifer diesen Druckbogen und nach dem Abschwenken der Anlegmarken übergibt der Vorgreifer den Druckbogen beispielsweise direkt an das Greifersystem des Gegendruckzylinders.At the high machine speeds of sheet-fed offset printing presses required today, the sheets to be printed are removed from the feeder stack via a conveyor table, which is designed in particular as a suction belt table (DE 3 138 481 C2), to the feed marks. An alignment of the front edge of the sheet in the sheet running direction then takes place on the application marks, in particular by additional conveying devices (DE 3 331 662 C2), as well as an alignment of the sheet side edge (side mark). After the alignment process, a cam-controlled pre-gripper grips this printed sheet and, after the application marks have been pivoted away, the pre-gripper transfers the printed sheet directly to the gripper system of the impression cylinder, for example.
Aus dem Stand der Technik ist es bekannt, im Bereich der Anlegmarken sogenannte Bogenabtastvorrichtungen anzuordnen, durch welche überprüfbar ist, ob der Bogen rechtzeitig genug anliegt (Erfassung von Spätbogen) und nicht derartig unvollständig angelegt ist, so daß er vom Vorgreifer nicht über seine gesamte Breite gefaßt werden kann (Schrägbogen). Derartige Bogenabtastvorrichtungen arbeiten meist nach dem Lichtschrankenprinzip, beispielsweise wie aus der DE 3 907 583 A1 bekannt. Ist das Ergebnis der Bogenabtastung negativ (Bogen liegt nicht korrekt an), so faßt der Vorgreifer den Bogen nicht, die Anlegmarken schwenken nicht ab, der Gummituchzylinder wird vom Gegendruckzylinder und vom Plattenzylinder abgestellt (Druck-Ab). Wie aus dem Stand der Technik hinreichend bekannt, werden die Bewegungen der Anlegmarken (Abschwenken), die des Vorgreifers (Bogenfassen, Übergabebewegung) durch Getriebe mit Kurvenrollen und Rollenhebeln erzeugt, wobei Schaltklinken vorgesehen sind, durch deren Einrasten ein Unterbrechen der Bewegungen erreichbar ist (Sperren des Bogenlaufs). Ebenfalls aus dem Stand der Technik hinreichend bekannt ist, daß bei den meistverbreitesden Bogenoffsetdruckmaschinen der Gummituchzylinder beidseitig exzentrisch gelagert ist und durch Verdrehen dieser exzentrischen Lagerung sowohl von Gegendruck- als auch von Plattenzylinder ganz abstellbar, zur Einfärbung des Gummituches nur an den Plattenzylinder, nicht aber an den Gegendruckzylinder anstellbar, sowie an Platten- und Gegendruckzylinder anstellbar ist. Das Verdrehen der exzentrischen Lager wird dabei ebenfalls durch Kurvenrollen, Rollenhebel sowie ansteuerbare Schaltklinken bewirkt. Die An- bzw. Abstellbewegung des Gummituchzylinders an Platten- und Gegendruckzylinder erfolgt dabei jeweils zum Zeitpunkt der sogenannten Kanalkorrespondenz der entsprechenden Druckwerkszylinder, also genau dann, wenn die Zylinderkanäle gegeneinander abrollen.From the prior art it is known to arrange so-called sheet scanning devices in the area of the application marks, by means of which it can be checked whether the sheet is in time enough (detection of late sheets) and is not so incompletely applied that the pre-gripper does not cover it over its entire width can be grasped (inclined arch). Such sheet scanning devices mostly work according to the light barrier principle, for example as known from DE 3 907 583 A1. The result of the sheet scan is negative (Sheet does not fit correctly), the pre-gripper does not grasp the sheet, the contact marks do not pivot, the blanket cylinder is turned off by the impression cylinder and the plate cylinder (print-down). As is sufficiently known from the prior art, the movements of the contact marks (swiveling), those of the pre-gripper (sheet gripping, transfer movement) are generated by gears with cam rollers and roller levers, pawls being provided, the engagement of which can be used to interrupt the movements (blocking of the sheet run). It is also sufficiently known from the prior art that in the most common sheetfed offset printing presses the blanket cylinder is mounted eccentrically on both sides and can be completely turned off by turning this eccentric mounting of both counterpressure and plate cylinders, for coloring the blanket only on the plate cylinder, but not on the impression cylinder is adjustable, and can be adjusted on plate and impression cylinders. The eccentric bearings are also rotated by cam rollers, roller levers and controllable pawls. The blanket cylinder is turned on and off on the plate and impression cylinders at the time of the so-called channel correspondence of the corresponding printing unit cylinders, i.e. exactly when the cylinder channels roll against each other.
Die Bogenabtastvorrichtungen nach dem Stand der Technik dienen jedoch nicht nur zur Kontrolle des Bogeneinlaufes bei laufender Maschine, d.h. der Druckmaschine in Druck-An-Stellung, sondern dienen auch der Kontrolle des Bogeneinlaufes bei der Maschine in Druck-Ab-Stellung, wobei dann nach Feststellen eines ersten korrekt an die Anlegmarken geförderten Bogens das Sperren des Bogenlaufes (Anlegmarken, Vorgreifer) aufgehoben und der Gummituchzylinder zunächst an den Plattenzylinder und dann an den Gegendruckzylinder, der eben diesen ersten Druckbogen trägt, angestellt wird.The sheet scanning devices according to the prior art, however, not only serve to control the sheet infeed while the machine is running, ie the printing press in the print-on position, but also serve to control the sheet infeed in the machine in the print-down position, in which case after detection of a first sheet correctly conveyed to the feed marks, the blocking of the sheet run (feed marks, pre-gripper) is lifted and the blanket cylinder is first placed on the plate cylinder and then on the impression cylinder which carries this first printing sheet.
Bei hohen Maschinengeschwindigkeiten neigt der Bogen von den Anlegmarken etwas zurückzuprallen (hohe Aufprallgeschwindigkeit), sich dann aber wieder von selbst zu beruhigen, d.h. korrekt an die Anlegmarken anzulegen. Erfolgt die Bogenabtastung zu einem Abtastzeitpunkt, bei dem sich der Bogen noch nicht beruhigt hat (kurz nach der Ankunft), so wird eine derartige Vorrichtung zur Kontrolle des Bogeneinlaufes das Sperren des Bogenlaufes veranlassen.At high machine speeds, the sheet tends to rebound somewhat from the feed marks (high impact speed), but then to calm down again on its own, i.e. to apply correctly to the contact marks. If the sheet is scanned at a point in time at which the sheet has not yet calmed down (shortly after arrival), such a device for checking the sheet inlet will cause the sheet to be blocked.
Aus der DE 3 044 643 A1 ist es bekannt, den Abtastzeitpunkt derartig festzulegen, daß bei maximaler Maschinengeschwindigkeit noch eine Betätigung, d.h. also eine Ansteuerung der Organe für die Bogenfreigabe- und Bogensperrung möglich ist. Der Meßzeitpunkt ist dabei einem festen Winkelwert einer Eintourenwelle zugeordnet und wird beispielsweise einem Taktgeber bzw. Impulsgeber an einer Eintourenwelle entnommen. Der Abtastzeitpunkt hat dabei derartig gewählt zu sein, daß bei Druck-An-Stellung der Maschine noch das Sperren des Bogeneinlaufes sowie das Druck-Ab-Stellen des Druckwerkes möglich ist sowie bei der Druck-Ab-Stellung der Maschine noch das Freigeben des Bogeneinlaufes sowie das Druck-An-Stellen.From DE 3 044 643 A1 it is known to determine the sampling time in such a way that actuation, i.e. So a control of the organs for sheet release and sheet blocking is possible. The time of measurement is assigned a fixed angular value of a one-turn shaft and is taken, for example, from a clock generator or pulse generator on a single-turn shaft. The sampling time must be chosen such that when the press is on the machine it is still possible to block the sheet inlet and the print-down position of the printing unit, and when the press is down the machine can still release the sheet inlet and the printing on.
Eine derartige starre Zuordnung des Abtastzeitpunktes zu einem festen Winkelwert einer Eintourenwelle hat dabei zum Nachteil, daß bei bestimmten Druckwerks- und Vorgreiferanordnungen der Abtastzeitpunkt einem Winkelwert der Eintourenwelle zugeordnet werden muß, bei dem das Auslösen des Druck-An-Stellvorganges sowie das Freigeben des Bogenlaufs noch möglich ist. Derartige Druckwerks- und Vorgreiferanordnungen kennzeichnen sich dadurch, daß der Winkelwert einer Eintourenwelle, bei welchem der Gummituchzylinder an den Plattenzylinder anstellbar ist (Kanalkorrespondenz) vor dem Winkelwert liegt, bei welchem das Freigeben des Bogenlaufs möglich ist (Abschwenken der Anlegmarken, Auslösen des Vorgreifers) und dieser wiederum vor dem Winkelwert liegt, bei welchem der Gummituchzylinder an den Gegendruckzylinder anstellbar ist.Such a rigid assignment of the sampling time to a fixed angular value of a single-turn shaft has the disadvantage that, in certain printing unit and pre-gripper arrangements, the sampling time must be assigned to an angular value of the single-turn shaft at which the triggering of the print-on actuating process and the release of the sheet travel are still required is possible. Such printing unit and pre-gripper arrangements are characterized in that the angular value of a single-turn shaft, in which the blanket cylinder can be adjusted to the plate cylinder (channel correspondence) lies before the angular value, at which the release of the sheet path is possible (swiveling off the feed marks, triggering the pre-gripper) and this in turn lies in front of the angle value at which the blanket cylinder can be adjusted to the impression cylinder.
Soll bei einer derartigen Bogenoffsetdruckmaschine der Abtastzeitpunkt möglichst "spät", d.h. derartig gelegt sein, daß dem Bogen an den Anlegmarken auch bei hohen Maschinengeschwindigkeiten eine hinreichend lange Beruhigungszeit zukommt, so muß der Abtastzeitpunkt einem Winkelwert zugeordnet werden, der der Bogenlaufkontrolle bei der Druck-Ab-Stellung entspricht. Der Abtastzeitpunkt (Winkelwert) muß somit vor dem Winkelwert für das Anstellen Gummituchzylinder an Plattenzylinder gelegt sein. Die Zeit (das Winkelwertintervall) zwischen dem Winkelwert für das Anstellen des Gummituchzylinders an Plattenzylinder und dem Winkelwert für das Freigeben des Bogenlaufs kann somit nicht genutzt werden. Dem Bogen wird somit nicht genügend Zeit zur Beruhigung an den Anlegmarken gegeben. Befindet sich die Druckmaschine in der Druck-An-Stellung, so kann es daher häufig zu Fehlauslösungen kommen, d.h. der Bogenlauf wird gesperrt, der Druck wird abgestellt, nur weil während des Abtastzeitpunktes der Bogen noch nicht korrekt an den Anlegmarken ausgerichtet war, sich aber ohne weiteres noch im nächsten Augenblick hätte ausrichten können. Gerade bei geschuppter Bogenzufuhr und in Verbindung mit zusätzlichen Fördereinrichtungen im Bereich der Anlegmarken ist dies eigentlich fast immer gegeben.With such a sheet-fed offset printing machine, should the sampling time be as "late" as possible, i.e. be placed in such a way that the sheet at the feed marks has a sufficiently long settling time even at high machine speeds, the sampling time must be assigned an angle value that corresponds to the sheet travel control in the print-down position. The sampling time (angle value) must therefore be placed in front of the angle value for the blanket cylinder against plate cylinder. The time (the angular value interval) between the angular value for placing the blanket cylinder on the plate cylinder and the angular value for releasing the sheet travel cannot be used. The sheet is therefore not given enough time to calm down at the feed marks. If the printing press is in the print-on position, false triggering can often occur, i.e. sheet travel is blocked, printing is stopped just because the sheet was not correctly aligned with the feed marks at the time of scanning, but could easily have been aligned the next moment. This is almost always the case, especially when the sheet feed is shingled and in connection with additional conveyors in the area of the feed marks.
Die DE 4 019 293 A1 beschreibt eine Einrichtung zur Bogenkontrolle an den Anlegmarken von Druckmaschinen, bei welcher der Abtastzeitpunkt variabel und umgekehrt proportional zur Maschinengeschwindigkeit bereitgestellt wird. So soll eine erhöhte Zeit für die Beruhigung der Bogen an den Anlegmarken erzielt werden. Eine derartige Einrichtung trägt jedoch nur der Totzeit der das Sperren bzw. Freigeben des Bogenlaufs sowie das An- und Abstellen der Druckwerkszylinder bewirkenden Organe Rechnung. Bei erhöhter Maschinengeschwindigkeit wird der Abtastzeitpunkt also vorverlegt. Bei den voranstehend beschriebenen Druckwerks- und Vorgreiferanordnungen wird somit die Zeit für die Beruhigung des Bogens erst recht nicht erhöht.DE 4 019 293 A1 describes a device for sheet control on the feed marks of printing presses, in which the scanning time is provided variably and inversely proportional to the machine speed. In this way, an increased time for calming the sheets on the feed marks is to be achieved. However, such a device only takes into account the dead time of the organs causing the blocking or releasing of the sheet travel and the switching on and off of the printing unit cylinders. If the machine speed is increased, the sampling time is therefore brought forward. In the printing unit and pre-gripper arrangements described above, the time for calming the sheet is certainly not increased.
Aufgabe der vorliegenden Erfindung ist es somit, eine Vorrichtung gemäß der Gattung von Anspruch 1 derartig auszugestalten, so daß bei allen Anordnungen der Druckwerkszylinder sowie der Anordnung des Vorgreifers zum Gegendruckzylinder dem Bogen auch bei höchsten Maschinengeschwindigkeiten eine möglichst lange Beruhigungszeit an den Anlegmarken gegeben ist.The object of the present invention is therefore to design a device according to the preamble of claim 1 such that, in all arrangements of the printing unit cylinder and the arrangement of the pre-gripper for the impression cylinder, the sheet has a longest possible calming time at the application marks even at the highest machine speeds.
Gelöst wird diese Aufgabe durch die Merkmale des kennzeichnenden Teils des Hauptanspruchs.This problem is solved by the features of the characterizing part of the main claim.
Des weiteren erfolgt eine Erläuterung der Erfindung anhand der Zeichnungen. In der zugehörigen Zeichnung zeigt:
- Fig. 1
- ein Winkelwertdiagramm einer Eintourenwelle mit den Abtastzeitpunkten nach der Erfindung
- Fig. 2a) - g)
- die Anordnung von Druckwerkszylindern sowie deren Stellungen bei den Winkelwerten a-g nach Fig. 1,
- Fig. 3
- ein Blockschaltbild einer Bogeneinlaufkontrollvorrichtung nach der Erfindung.
- Fig. 1
- an angular value diagram of a one-way wave with the sampling times according to the invention
- 2a) - g)
- the arrangement of printing unit cylinders and their positions at the angular values ag according to FIG. 1,
- Fig. 3
- a block diagram of a sheet entry control device according to the invention.
In Fig. 2a) ist ein Druckwerk einer Bogenoffsetdruckmaschine dargestellt, welches sich durch die in der Beschreibungseinleitung beschriebene Eigenschaft bezüglich Druckwerks- und Vorgreiferanordnung kennzeichnet. In bekannter Weise wirken ein Gegendruckzylinder GD, ein Gummituchzylinder GT und ein Plattenzylinder PZ miteinander zusammen. Die schraffierten Bereiche dieser Zylinder stellen deren Kanäle dar. Erkennbar handelt es sich hier um einen doppeltgroßen Gegendruckzylinder GD, ohne daß dies aber eine notwendige Voraussetzung für obige Eigenschaft ist. Das Druckwerk nach Fig. 2a) befindet sich in einer Stellung, in welcher ein vorheriger Bogen noch ausgedruckt wird, ein weiterer, neuer Bogen gerade vom Vorgreifer VG gefaßt wird. Dieser neue Bogen befindet sich im Bereich der nicht dargestellten Anlage.In Fig. 2a) a printing unit of a sheet-fed offset printing machine is shown, which is characterized by the property described in the introduction to the description with regard to the printing unit and pre-gripper arrangement. In a known manner, an impression cylinder GD, a blanket cylinder GT and a plate cylinder PZ work together. The hatched areas of these cylinders represent their channels. It can be seen that this is a double-sized impression cylinder GD, but this is not a necessary prerequisite for the above property. The printing unit according to Fig. 2a) is in a position in which a previous sheet is still being printed, another, new sheet is currently being grasped by the pre-gripper VG. This new arch is in the area of the system, not shown.
Fig. 1 zeigt das Winkeldiagramm einer Eintourenwelle des Druckwerkes nach Fig. 2a) über mehr als eine Umdrehung. Kalibriert wurde dieses Winkeldiagramm auf die Stellung des Druckwerkes nach Fig. 2a), also auf genau diejenige Stellung, in welcher ein neuer Druckbogen vom Vorgreifer VG an der Anlage gefaßt wird. Im Winkeldiagramm nach Fig. 1 sind mit den Buchstaben b) bis g) die Winkelwerte der Druckwerkszylinderstellungen gemäß den Figuren 2b) bis 2g) eingetragen. Erkennbar handelt es sich bei diesen Winkelwerten um diejenigen Stellungen, bei welchen das Druckende DE von Gummituchzylinder GT und Gegendruckzylinder GD miteinander korrespondiert (Fig. 2b)), der Druckanfang DA von Gummituchzylinder GT und Gegendruckzylinder GD miteinander korrespondiert (Fig. 2d)), das Druckende DE von Gummituchzylinder GT und Plattenzylinder PZ miteinander korrespondiert (Fig. 2e)), der Druckanfang DA von Plattenzylinder PZ und Gummituchzylinder GT miteinander korrespondiert (Fig. 2g)). Die Winkelwerte im Winkeldiagramm nach Fig. 1 unter c) bzw. f) entsprechen denjenigen Druckwerkszylinderstellungen, bei welchen die Mitten der Kanäle von Gegendruckzylinder GD und Gummituchzylinder GT miteinander korrespondieren bzw. die Kanäle von Gummituchzylinder GT und Plattenzylinder PZ miteinander korrespondieren. Bei einem Druck-An-/Druck-Ab-Stellgetriebe, bestehend aus Kurvenscheibe, Rollenhebel nebst Schaltklinke können lediglich in diesen Stellungen nach Fig. 2c) und Fig. 2f) (genauer gesagt: in einem kleinen Winkelbereich um diese Stellungen herum) die Schaltklinken in entsprechende Rasten eingerückt werden. Da die Stellglieder, die dies bewirken, noch eine bestimmte Reaktionszeit aufweisen, haben die Schaltzeitpunkte, welche das Ein- bzw. Ausrücken der Schaltklinken bewirken entsprechend vorverlegt zu sein. Gleiches gilt für den Schaltzeitpunkt zur An- bzw. Abschaltung des Vorgreifers und der Anlegemarken (Freigeben bzw. Sperren des Bogenlaufes).Fig. 1 shows the angular diagram of a single-turn shaft of the printing unit according to Fig. 2a) over more than one revolution. This angle diagram was calibrated to the position of the printing unit according to FIG. 2a), that is to say to exactly the position in which a new printing sheet is gripped by the pre-gripper VG on the system. In the angle diagram according to FIG. 1, the letters b) to g) indicate the angle values of the printing cylinder positions according to FIGS. 2b) to 2g). It can be seen that these angular values are those positions in which the printing end DE of the blanket cylinder GT and impression cylinder GD corresponds to one another (FIG. 2b)), the beginning of printing DA of the blanket cylinder GT and impression cylinder GD corresponds to one another (FIG. 2d)), that Printing end DE of blanket cylinder GT and plate cylinder PZ corresponds to one another (FIG. 2e)), the beginning of printing DA of plate cylinder PZ and blanket cylinder GT corresponds to one another (FIG. 2g)). 1 under c) or f) correspond to those printing unit cylinder positions in which the centers of the channels of impression cylinder GD and blanket cylinder GT correspond to one another or the channels of blanket cylinder GT and plate cylinder PZ correspond to one another. In a pressure-on / pressure-down actuating gear, consisting of a cam, roller lever and shift pawl, the shift pawls can only be in these positions according to FIG. 2c) and FIG. 2f) (more precisely: in a small angular range around these positions) be indented into corresponding notches. Since the actuators which cause this still have a certain reaction time, the switching times which cause the engagement or disengagement of the switching pawls have to be brought forward accordingly. The same applies to the switching time for switching the pre-gripper on and off, and the lay-on marks (enabling or disabling the sheet path).
Im Diagramm nach Fig. 1 ist mit X der Winkelwert der Eintourenwelle eingezeichnet, bei welchem der Papieranlauf eines Bogens an die Anlegmarke erfolgt. Befindet sich das Druckwerk im Druck-Ab-Zustand (Kommando zum Druck-An gegeben) und erreicht ein neuer Bogen zum Winkelwert X die Anlegmarke, so hat bei einem Winkelwert, der etwa im Intervall zwischen e) und f) zu liegen hat, der Stellbefehl für das Einrücken der Schaltklinke zu erfolgen, so daß daraufhin im Intervall zwischen f) und e) der Gummituchzylinder GT an den Plattenzylinder PZ angestellt wird. Daraufhin hat bis zum Winkelwert a) die Abgabe eines zweiten Stellbefehls zu erfolgen, so daß der Bogenlauf freigegeben wird, also der Vorgreifer VG diesen ersten neuen Bogen erfaßt. Nach dem Erfassen des ersten Bogens durch den Vorgreifer VG erfolgt dann im Intervall der Winkelwert zwischen b) und c) das Anstellen des Gummituchzylinder GT an den Gegendruckzylinder GD, da jetzt bereits der Bogen an den Gegendruckzylinder übergeben wurde und somit durch den nun eingefärbten Gummituchzylinder GT bedruckt werden kann. Wegen der beschriebenen Anordnung des Druckwerkes sowie den sich daraus ergebenden Abläufen bezogen auf die Eintourenwelle hat im Zustand Druck-Ab der Abtastzeitpunkt bei Winkelwert A für den ersten Bogen auf jeden Fall vor dem Winkelwert f, wegen den bereits erwähnten Reaktionszeiten der Stellglieder eventuell sogar noch vor dem Winkelwert e) zu liegen. Dies ergibt sich aus der Tatsache, daß in zeitlicher Folge der Gummituchzylinder GT an den Plattenzylinder PZ anzustellen ist, daraufhin die Freigabe des Bogenlaufes zu schalten ist, woraufhin das Anstellen des Gummituchzylinders GT an den Gegendruckzylinder GD erfolgt.In the diagram according to FIG. 1, X is the angular value of the single-turn shaft, at which the paper run-up of a sheet to the contact mark takes place. If the printing unit is in the print-down state (command given for print-on) and a new sheet reaches the feed mark at the angular value X, then an angular value that has to lie approximately in the interval between e) and f) must have Command to engage the engagement of the pawl, so that the blanket cylinder GT is then turned on the plate cylinder PZ in the interval between f) and e). Thereupon, up to the angular value a), a second actuating command must be issued so that the sheet travel is released, that is to say the pre-gripper VG detects this first new sheet. After the first sheet has been gripped by the pre-gripper VG, the angular value between b) and c) is then applied to the blanket cylinder GT against the impression cylinder GD, since the sheet has already been transferred to the impression cylinder and thus through the now colored blanket cylinder GT can be printed. Because of the described arrangement of the printing unit and the resulting processes in relation to the single-turn shaft, in the print-down state the sampling time at angle value A for the first sheet definitely has before angle value f, because of the already mentioned reaction times of the actuators to be the angular value e). This results from the fact that the rubber blanket cylinder GT is to be turned on the plate cylinder PZ in sequence, then the release of the sheet travel is to be switched, whereupon the blanket cylinder GT is turned on the impression cylinder GD.
Befindet sich die Maschine im Druck-An-Zustand, so ist wie im Diagramm unter Fig. 1 ersichtlich, daß bei einem Fehlbogen zuerst der Bogenlauf gesperrt werden muß. Alsdann hat das Abstellen des Gummituchzylinders GT vom Gegendruckzylinder GD (Kanalkorrespondenz; Intervall b) - d)) und darauf das Abstellen des Gummituchzylinders GT vom Plattenzylinder PZ (Kanalkorrespondenz; Intervall e) - g)) zu erfolgen. Erfolgt beim Maschinenzustand Druck-An die Bogenabtastung ebenfalls zu einem Abtastzeitpunkt, der durch den Winkelwert A (Fig. 1) gegeben ist, so ist ersichtlich, daß bei hohen Maschinengeschwindigkeiten lediglich ein sehr kurzes Zeitintervall dem Bogen an den Anlegmarken zu seiner Beruhigung zur Verfügung steht.If the machine is in the print-on state, it can be seen, as in the diagram under FIG. 1, that in the event of a missing sheet the sheet travel must first be blocked. Then has the blanket cylinder GT from the impression cylinder GD (channel correspondence; interval b) - d)) and then the blanket cylinder GT from the plate cylinder PZ (channel correspondence; interval e) - g)). If the sheet scan is also carried out in the machine state, print-on, at a sampling time, which is given by the angle value A (FIG. 1), it can be seen that, at high machine speeds, only a very short time interval is available to the sheet at the application marks for its reassurance .
Nach der Erfindung ist nun vorgesehen, im Druck-An-Zustand für die Bogenabtastung an der Anlage einen zweiten Abtastzeitpunkt mit einem Winkelwert B vorzusehen. Dieser ist derartig nach hinten verlegt, so daß den Bogen an den Anlegmarken ein viel größeres Zeitintervall zur Beruhigung gegeben ist (Intervall X - B). Dieser Abfragezeitpunkt mit dem Winkelwert B kann, wie in Fig. 1 dargestellt, derartig spät gelegt werden, so daß auch bei größter Maschinengeschwindigkeit noch ein sicheres Sperren des Bogenlaufes (Vorgreifer VG ab) gewährleistet ist. Je nach Maschinenzustand erfolgt nach der Erfindung somit die Bogenabtastung zum Zeitpunkt (Winkelwert) A bzw. B.According to the invention, it is now provided to provide a second sampling time with an angle value B for the sheet scanning on the system in the print-on state. This is moved to the rear so that the sheets at the contact marks have a much longer time interval to calm down (interval X - B). This query time with the angle value B can, as shown in FIG. 1, be set so late that a safe blocking of the sheet travel (pre-gripper VG from) is still guaranteed even at the highest machine speed. According to the invention, depending on the machine condition, the sheet is scanned at the time (angle value) A or B.
In Fig. 3 ist schematisch eine Vorrichtung zur Kontrolle des Bogenlaufes nach der Erfindung dargestellt. Mit dem Bezugszeichen 1 ist ein Anlagetisch gekennzeichnet, an dessen Ende, wie allgemein bekannt, wegschwenkbare Anlegmarken 2 angeordnet sind. Ein Bogen 3 wird an diesen Anlegmarken 2 sowohl in Bogenlaufrichtung als auch seitlich dazu ausgerichtet. Zur Kontrolle des Bogeneinlaufs sind im Bereich der Anlegmarken eine oder mehrere Bogenabtastvorrichtungen 4 angeordnet, die wie in Fig. 3 angedeutet, als sogenannte Reflexlichtschranken ausgebildet sein können. Auch sind andere Abtastvorrichtungen, wie mechanische Tastfühler, ultraakustisch oder kapazitiv wirkende Tastköpfe denkbar. Zur Erfassung von sogenannten Schiefbogen können zwei Bogenabtastvorrichtungen 4 vorgesehen sein, welche die Bogenvorderkante an zwei auseinanderliegenden Punkten erfassen. Der Bogenabtastvorrichtung 4 ist eine Auswerteeinheit 5 nachgeschaltet, welche einerseits die Bogenabtastvorrichtung 4 mit der nötigen Betriebsspannung versorgt, aber andererseits auch das von der den Bogenabtastvorrichtungen 4 gelieferte Ausgangssignal zu den Zeitpunkten der Winkelwerte A oder B bezüglich Gut- oder Fehlbogen auswertet, so daß ein Signal einer Steuereinrichtung 6 zuführbar ist. Die Auswerteeinheit 5 steht in Wirkverbindung mit einem Taktgeber 7, dem, wie im Diagramm nach Fig. 1 dargestellt, zu zwei Winkelwerten A, B der Eintourenwelle entsprechende Impulse entnehmbar sind. Über eine Leitung Maschinenzustand 8 ist der Auswerteeinheit 5 die Information zuführbar, ob die Maschine sich im Druck-An- oder Druck-Ab-Zustand befindet. Je nach Maschinenzustand wird somit der Impuls bei Winkelwert A oder Impuls bei Winkelwert B für den Abtastzeitpunkt bzw. Auswertezeitpunkt durch die Bogenabtastvorrichtung 4 herangezogen. Bei der Bogenabtastung kann es sich um eine "echte" Abtastung zu den Zeitpunkten der Winkelwerte A, B handeln oder aber auch um eine kontinuierliche Meßung durch die Bogenabtastvorrichtung 4, wobei durch die Auswerteeinheit 5 zu den Zeitpunkten A, B das Ausgangssignal ausgewertet wird. Entsprechend dem Ergebnis der Bogenabtastung, also dem Ausgangssignal der Auswerteeinheit 4, steuert sodann die Steuereinrichtung 6 die das Sperren bzw. Freigeben des Bogenlaufs sowie das Druck-An bzw. Druck-Ab bewirkenden Organe an, wobei die Steuereinrichtung 6 ebenfalls mit Impulsen bei bestimmten Winkelwerten versorgt wird, bei denen die entsprechenden Schaltvorgänge auszulösen sind (beispielsweise ebenfalls vom Taktgeber 7). Der Steuereinrichtung 6 werden ebenfalls über nicht dargestellte Leitungen die Kommandos zum Druck-An- bzw. Druck-Ab-Stellen zugeführt.In Fig. 3, a device for controlling the sheet travel according to the invention is shown schematically. The reference numeral 1 denotes a contact table, at the end of which, as is generally known, pivotable contact marks 2 are arranged. A sheet 3 is aligned with these contact marks 2 both in the sheet running direction and laterally thereto. To control the sheet entry, one or more sheet scanning devices 4 are arranged in the area of the application marks, which, as indicated in FIG. 3, can be designed as so-called reflective light barriers. Other scanning devices, such as mechanical touch probes, ultra-acoustic or capacitive probes are also conceivable. For the detection of so-called skewed sheets, two sheet scanning devices 4 can be provided which detect the leading edge of the sheet at two points which are located apart. The sheet scanning device 4 is followed by an
- GDDG
- GegendruckzylinderImpression cylinder
- GTGT
- GummituchzylinderBlanket cylinder
- PZPZ
- PlattenzylinderPlate cylinder
- VGVG
- VorgreiferForerunner
- DATHERE
- DruckanfangStart of printing
- DEDE
- DruckendeEnd of printing
- 11
- AnlagetischInvestment table
- 22nd
- AnlegmarkenLanding marks
- 33rd
- Bogenarc
- 44th
- BogenabtastvorrichtungSheet scanner
- 55
- AuswerteeinheitEvaluation unit
- 66
- SteuereinrichtungControl device
- 77
- TaktgeberClock
- 88th
- Leitung MaschinenzustandHead of machine condition
- AA
- Winkelwert (Abtastzeitpunkt)Angular value (sampling time)
- BB
- Winkelwert (Abtastzeitpunkt)Angular value (sampling time)
- XX
- Winkelwert (Bogenankunft)Angle value (arch arrival)
Claims (1)
dadurch gekennzeichnet,
daß dem Taktgeber bei Winkelwerten (A, B; Fig. 1) Abtastzeitpunkte entnehmbar und der Auswerteeinheit (5) zuführbar sind, wobei ein Abtastzeitpunkt für den ersten in die Maschine einlaufenden Bogen bei noch abgestellten Druckwerkszylindern (Druck-An-Stellung vorgewählt) und ein Abtastzeitpunkt für die Bogenkontrolle bei freigegebenem Bogenlauf und angestellten Druckwerkszylindern (Maschine in Druck-An-Stellung) bereitgestellt wird und
daß die Auswerteeinheit (5) dazu ausgebildet ist, je nach Betriebszustand zwischen diesen zwei Abtastzeitpunkten umzuschalten.Device for checking the sheet travel in the area of the application marks of sheet-fed offset printing machines, consisting of a sheet scanning device together with an evaluation unit, a control device connected downstream thereof, which, according to the result of the sheet scanning, contributes to the release or blocking of the sheet travel as well as the switching on and off of the printing unit cylinders controls certain angle values of a one-way wave and a clock generator that is operatively connected to the evaluation unit for providing scanning instants (pulses) that trigger the arc scanning, which correspond to certain angle values of the one-way wave,
characterized by
that the timing at angular values (A, B; Fig. 1) sampling times can be removed and fed to the evaluation unit (5), one sampling time for the first sheet entering the machine with the printing unit cylinders still parked (print-on position preselected) and one Sampling time for the sheet control with released sheet travel and employed printing unit cylinders (machine in print-on position) is provided and
that the evaluation unit (5) is designed to switch between these two sampling times depending on the operating state.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4112222A DE4112222C2 (en) | 1991-04-15 | 1991-04-15 | Device for controlling sheet travel in the area of the application marks of sheet-fed offset printing machines |
| DE4112222 | 1991-04-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0509278A1 true EP0509278A1 (en) | 1992-10-21 |
| EP0509278B1 EP0509278B1 (en) | 1995-05-10 |
Family
ID=6429590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP92105104A Expired - Lifetime EP0509278B1 (en) | 1991-04-15 | 1992-03-25 | Device for controlling the sheet run in the region of laymarks in sheet offset printing machines |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US5186105A (en) |
| EP (1) | EP0509278B1 (en) |
| JP (1) | JP2624604B2 (en) |
| AT (1) | ATE122316T1 (en) |
| DE (2) | DE4112222C2 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4221929C2 (en) * | 1992-07-03 | 1997-11-20 | Heidelberger Druckmasch Ag | Gripper control for sheet grippers on a sheet-guiding cylinder or the like in a printing press |
| DE4333071C1 (en) * | 1993-09-29 | 1995-02-09 | Roland Man Druckmasch | Method and device for controlling the sheet inlet when starting a sheet-processing printing machine |
| DE19505560C2 (en) * | 1995-02-18 | 1998-07-02 | Roland Man Druckmasch | Procedure for controlling sheet feeding |
| DE19510082C2 (en) * | 1995-03-20 | 1997-07-17 | Roland Man Druckmasch | Method and device for controlling the sheet feed in a sheet-fed offset printing machine |
| DE20000919U1 (en) * | 2000-01-20 | 2000-03-09 | MAN Roland Druckmaschinen AG, 63075 Offenbach | Monitoring device for a printing press |
| JP4723197B2 (en) * | 2004-03-18 | 2011-07-13 | 株式会社小森コーポレーション | Plate register adjustment device for sheet-fed rotary printing press |
| JP2006175862A (en) * | 2004-12-21 | 2006-07-06 | Heidelberger Druckmas Ag | Method for periodically conveying sheet paper within printing-technology machine |
| DE102005019617A1 (en) * | 2004-12-22 | 2006-07-06 | Man Roland Druckmaschinen Ag | Sheet processing device e.g. sheet-fed printing press has capacitive sensor, which is provided in the area of adjustment or guiding device whereby feed device, is designed as feed table, on which sheets e.g. printed sheets can be moved |
| CN1846997A (en) * | 2005-02-07 | 2006-10-18 | 海德堡印刷机械股份公司 | Apparatus for conveying a sheet through a printing machine |
| DE102020129239A1 (en) | 2019-11-12 | 2021-05-12 | Heidelberger Druckmaschinen Aktiengesellschaft | Improved sheet travel control |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2202851A1 (en) * | 1972-01-21 | 1973-08-02 | Weitmann & Konrad | DEVICE FOR AUTOMATIC PRINT ADJUSTMENT IN ARC-GUIDING PRINTING MACHINES |
| DE3044643A1 (en) * | 1980-02-29 | 1981-09-17 | VEB Kombinat Polygraph "Werner Lamberz" Leipzig, DDR 7050 Leipzig | METHOD AND DEVICE FOR CONTROLLING A PRINTING MACHINE |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH548933A (en) * | 1972-03-13 | 1974-05-15 | Bobst Fils Sa J | INSTALLATION FOR OBTAINING A READING WINDOW FOR THE RECORDING OF AN OPERATION IN A PRINTING OR CARDBOARDING MACHINE. |
| US4220084A (en) * | 1978-11-07 | 1980-09-02 | Magnetic Peripherals Inc. | Document endorser apparatus |
| DE3136703C1 (en) * | 1981-09-16 | 1982-11-04 | M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach | Devices on printing presses with register adjustment devices |
| DE3138481C2 (en) * | 1981-09-28 | 1984-05-10 | M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach | Device for conveying a shingled stream of sheets of paper |
| DE3138540A1 (en) * | 1981-09-28 | 1983-04-14 | M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach | DEVICE FOR FEEDING BOWS DETACHED ON A PUTTING TABLE AND ALIGNED TO THE FRONT AND SIDE EDGE |
| US4428288A (en) * | 1982-04-26 | 1984-01-31 | Harper Corporation Of America | Adjustable drive system for matching surface speeds of a transfer roll and plate roll and method thereof |
| DD228700A3 (en) * | 1983-06-23 | 1985-10-16 | Falk Buschmann | TACTULAR PRODUCTION DEVICE FOR PRINTING MACHINES |
| DE3331662A1 (en) * | 1983-09-02 | 1985-03-28 | M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach | METHOD AND DEVICE FOR FITTING A CUSTOM SHEET INTO A PRINTING MACHINE |
| DE3342662A1 (en) * | 1983-11-25 | 1985-06-05 | M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach | DEVICE ON A PRINTING MACHINE CONSISTING OF A PLATE AND / OR RUBBER CYLINDER |
| DD235049A1 (en) * | 1985-03-04 | 1986-04-23 | Polygraph Leipzig | CONTROL CIRCUIT |
| DE3721879A1 (en) * | 1987-07-02 | 1989-01-12 | Heidelberger Druckmasch Ag | METHOD AND PRINTING MACHINE FOR MULTI-COLORED PRINTING |
| JPS6455025U (en) * | 1987-09-30 | 1989-04-05 | ||
| DE3907583A1 (en) * | 1989-03-09 | 1990-09-13 | Roland Man Druckmasch | Monitoring device on sheet-processing machines |
| DD285759A5 (en) * | 1989-07-07 | 1991-01-03 | Veb Komb. Polygraph "Werner Lamberz",Dd | ARRANGEMENT FOR BOW CONTROL |
-
1991
- 1991-04-15 DE DE4112222A patent/DE4112222C2/en not_active Expired - Fee Related
-
1992
- 1992-03-25 AT AT92105104T patent/ATE122316T1/en not_active IP Right Cessation
- 1992-03-25 EP EP92105104A patent/EP0509278B1/en not_active Expired - Lifetime
- 1992-03-25 DE DE59202115T patent/DE59202115D1/en not_active Expired - Fee Related
- 1992-04-15 US US07/869,315 patent/US5186105A/en not_active Expired - Fee Related
- 1992-04-15 JP JP4094712A patent/JP2624604B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2202851A1 (en) * | 1972-01-21 | 1973-08-02 | Weitmann & Konrad | DEVICE FOR AUTOMATIC PRINT ADJUSTMENT IN ARC-GUIDING PRINTING MACHINES |
| DE3044643A1 (en) * | 1980-02-29 | 1981-09-17 | VEB Kombinat Polygraph "Werner Lamberz" Leipzig, DDR 7050 Leipzig | METHOD AND DEVICE FOR CONTROLLING A PRINTING MACHINE |
Also Published As
| Publication number | Publication date |
|---|---|
| DE4112222C2 (en) | 1994-12-01 |
| EP0509278B1 (en) | 1995-05-10 |
| ATE122316T1 (en) | 1995-05-15 |
| DE4112222A1 (en) | 1992-10-22 |
| JP2624604B2 (en) | 1997-06-25 |
| DE59202115D1 (en) | 1995-06-14 |
| US5186105A (en) | 1993-02-16 |
| JPH05138849A (en) | 1993-06-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0899096B1 (en) | Rotary sheet-fed press | |
| DE3940795C2 (en) | ||
| DE2604379C2 (en) | Method for aligning sheets | |
| DE4013106C1 (en) | ||
| DE3220098C2 (en) | Numbering machine | |
| DE3921999A1 (en) | Sheet-fed rotary printing machine for verso and recto printing | |
| EP0291721A2 (en) | Sheet-printing rotary press for single-sided polychromatic printing or for perfecting and repetition printing | |
| EP2059468A1 (en) | Register insertion apparatus | |
| EP0839090B1 (en) | Sheet-feed offset rotary printing machine | |
| DE3533081C2 (en) | ||
| EP0727374B1 (en) | Method for controlling the sheet feeding | |
| EP0509278B1 (en) | Device for controlling the sheet run in the region of laymarks in sheet offset printing machines | |
| EP0555535B1 (en) | Method and device for laterally registering sheets | |
| EP0830943B1 (en) | Start-up/restart-up procedure of production printing | |
| DD248320A1 (en) | SUCTION SYSTEM IN ARC CYLINDERS | |
| DE2430212A1 (en) | SORTING DEVICE IN PRINTING MACHINES | |
| DE3217779C2 (en) | ||
| DE3108806C2 (en) | Sheet-fed rotary offset printing machine for either face or face printing | |
| DE19901699B4 (en) | Method and device for carrying out the method for eliminating rhythmic registration errors in rotary printing machines | |
| EP1070583B1 (en) | Method and device for the printing plate change. | |
| EP0645242B1 (en) | Method and device for controlling the sheet feeding when starting up a sheet fed printing machine | |
| DE102013012708B4 (en) | Register adjustment during set-up processes on printing presses | |
| DE2756507A1 (en) | METHOD AND DEVICE FOR TURNING A SHEET IN A SHEET PRINTING MACHINE, BOOKBINDING MACHINE OR THE LIKE. | |
| EP1864799B1 (en) | Device for guiding sheets in printing presses | |
| DE19635388A1 (en) | Rotary offset printing press for first or second forme printing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL PT SE |
|
| 17P | Request for examination filed |
Effective date: 19920907 |
|
| 17Q | First examination report despatched |
Effective date: 19940503 |
|
| ITF | It: translation for a ep patent filed |
Owner name: DE DOMINICIS & MAYER S.R.L. |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL PT SE |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 19950510 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 19950510 Ref country code: ES Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY Effective date: 19950510 Ref country code: DK Effective date: 19950510 |
|
| REF | Corresponds to: |
Ref document number: 122316 Country of ref document: AT Date of ref document: 19950515 Kind code of ref document: T |
|
| ET | Fr: translation filed | ||
| REF | Corresponds to: |
Ref document number: 59202115 Country of ref document: DE Date of ref document: 19950614 |
|
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 19950518 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Effective date: 19950810 Ref country code: PT Effective date: 19950810 |
|
| NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19960331 |
|
| 26N | No opposition filed | ||
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 19980225 Year of fee payment: 7 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 19980320 Year of fee payment: 7 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990331 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990331 Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990331 |
|
| BERE | Be: lapsed |
Owner name: MAN ROLAND DRUCKMASCHINEN A.G. Effective date: 19990331 |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20010214 Year of fee payment: 10 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 20010226 Year of fee payment: 10 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20010313 Year of fee payment: 10 |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20020325 Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20020325 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20020325 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20021129 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20030311 Year of fee payment: 12 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20041001 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050325 |