EP3497045B1 - Lateral sheet alignment - Google Patents
Lateral sheet alignment Download PDFInfo
- Publication number
- EP3497045B1 EP3497045B1 EP17751075.7A EP17751075A EP3497045B1 EP 3497045 B1 EP3497045 B1 EP 3497045B1 EP 17751075 A EP17751075 A EP 17751075A EP 3497045 B1 EP3497045 B1 EP 3497045B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lateral
- suction
- sheet
- sensor
- sheets
- 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.)
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- 238000000034 method Methods 0.000 claims description 25
- 238000007664 blowing Methods 0.000 claims description 12
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- 230000002123 temporal effect Effects 0.000 claims 3
- 210000000056 organ Anatomy 0.000 description 7
- 230000001105 regulatory effect Effects 0.000 description 7
- 230000008901 benefit Effects 0.000 description 5
- 230000006870 function Effects 0.000 description 5
- 238000009423 ventilation Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 239000003550 marker Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 241000252169 Catostomus commersonii Species 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000001447 compensatory effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H9/00—Registering, e.g. orientating, articles; Devices therefor
- B65H9/10—Pusher and like movable registers; Pusher or gripper devices which move articles into registered position
- B65H9/103—Pusher and like movable registers; Pusher or gripper devices which move articles into registered position acting by friction or suction on the article for pushing or pulling it into registered position, e.g. against a stop
- B65H9/105—Pusher and like movable registers; Pusher or gripper devices which move articles into registered position acting by friction or suction on the article for pushing or pulling it into registered position, e.g. against a stop using suction means
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- 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
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- 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
- B65H2406/366—Means for producing, distributing or controlling suction producing vacuum
- B65H2406/3661—Injectors
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- 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
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
- B65H2515/30—Forces; Stresses
- B65H2515/34—Pressure, e.g. fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/13—Parts concerned of the handled material
- B65H2701/131—Edges
- B65H2701/1315—Edges side edges, i.e. regarded in context of transport
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2801/00—Application field
- B65H2801/03—Image reproduction devices
- B65H2801/21—Industrial-size printers, e.g. rotary printing press
Definitions
- the invention relates to a method and an arrangement for the lateral alignment of sheets.
- Methods and arrangements for the lateral alignment of sheets in a conveying direction are in sheets conveyed to a sheet processing machine, in which the sheets to be printed are in a side-pulling organ that can be driven by a drive to a side-pulling movement by means of a side-pulling organ that is arranged below or in the feed table and in time with the incoming sheets Starting position detected and conveyed to a side alignment position.
- This side pulling element is designed as a pneumatic side mark with a suction device as a pulling element.
- the sensor detects the position of the sheet that is not yet side-aligned, and from this the individual pulling path for the sheet until it hits a side stop is determined.
- suction air is switched via a solenoid valve to the side pulling element designed as a sucker sooner or later for the constant movement of the sucker and the sheet is conveyed by the sucker in a fixed position against the side stop.
- the suction cup is ventilated and thus the sheet is released from the suction cup.
- the vacuum on the suction cup is to be set sensitively to the sheet to be processed. If the vacuum is high, the sheet will be damaged.
- the DE 10 2009 027 389 A1 itself describes a method and an arrangement for the lateral alignment of sheets.
- the lateral alignment takes place transversely to the conveying direction of a sheet processing machine, in the case of the sheets to be printed by means of a side pulling element arranged below or in the feed table.
- This can be driven by a drive to a page pulling movement in time with the incoming sheets and detects the sheets in a starting position in order to convey them to a side alignment position.
- the reaching of the page alignment position of the sheet is detected by a sensor, whereby the drive of the page pulling movement can be controlled.
- a method for sheet alignment and an arrangement for the lateral alignment of sheets conveyed in a conveying direction to a sheet processing machine is known.
- the sheets to be printed are picked up by means of a side-pulling organ which is arranged in the feed table and can be driven by a drive to a side-pulling movement in time with the incoming sheets.
- the sheets are conveyed from a starting position to a side alignment position, with each sheet being detected by a sensor at the side alignment position and measured with regard to the side position and the position above the feed table.
- a control valve for influencing the suction of the sheets is then activated via a control unit.
- the object of the invention is to create a method and an arrangement for carrying out the method, so that the sheets are correctly laterally aligned without damage and the setting of the side-pulling member is simplified.
- the suction air is supplied to the side mark by means of an ejector system operated with specifically controllable blown air.
- an ejector system operated with specifically controllable blown air.
- the sheet when the sheet reaches the side alignment position, the side edge and sheet deformation are detected by a sensor.
- the generated signals are used to control an air supply for the pneumatic page mark.
- the sheet is constantly gripped with sufficient holding force on the part of the side-pulling member, so that a slip-free holding is ensured without leading to a deformation of the sheet.
- a sensitive adjustment of the holding force to the type of sheet to be processed is no longer necessary manually.
- a signal is preferably sent from the sensor or sensors to a control unit, whereby a control signal is generated and triggered in the control unit and fed to the drive of a control valve for supplying the side mark with suction air.
- the lateral pulling element is a suction device that can be acted upon by negative pressure from a negative pressure source and that can be moved by the drive transversely to the conveying direction of the sheets from a starting position to the lateral alignment position, whereby for gentle detection the arc of the suction cup can be a suction plate.
- the suction device can preferably be connected to the vacuum source via a switching valve.
- the switching valve is a 2/2-way valve, in one switching position of which the sucker can be connected to the vacuum source and in whose second switching position the sucker can be connected to atmosphere or an overpressure source, a switchover from the first switching position to the second takes place after the lateral alignment position has been reached Switching position and thus ventilation of the suction cup, so that the sheet is released from the suction cup.
- the switching valve can be used as a Be designed solenoid valve.
- the sensor can be a contactless sensor, the sensor preferably being an optical sensor.
- the sensors contain functions for checking the position of the side edge of the sheet to be aligned and for detecting sheet deformations in the event of incorrect settings of the suction air for the pneumatic side mark or its suction device.
- the values determined by the sensors are sent to a controller, which uses them to determine control values for an electrically controllable regulating valve which is designed like the switching valve mentioned above or is arranged in connection with it.
- the regulating valve can have a servomotor which processes the control values for changing or adapting the suction air setting.
- the advantage here is that the sheet travel is automated during the page alignment.
- the suction air setting does not have to be constantly readjusted with changing speeds of a sheet processing machine or with changing printing materials or printing material qualities.
- a suction air setting appropriate for the printing material can be preselected.
- the use of suction plates adapted to the printing material for the side suction cup can be monitored and set.
- the movement of the side edge of the sheet to be aligned can be recorded with a camera in the area of the side stop of the pneumatic side mark and made available at the control station. This significantly improves the monitoring of the page orientation.
- the invention is thus embodied in a method for the lateral alignment of sheets which are conveyed in one conveying direction to a sheet-fed printing machine.
- the sheets to be printed are aligned by means of a side-pulling organ that can be driven by a drive to a side-pulling movement and can be subjected to negative pressure in a feed table in time with the incoming sheets.
- the sheets are captured in a starting position and conveyed to a side alignment position, which is from a side stop or a Sensor position is defined.
- the reaching of the page registration position of the sheet is detected by a sensor which generates a corresponding page position signal.
- the sheet position is detected by sensors and the signals from the sensor (s) are processed to change the setting of the strength of the negative pressure supplied to the side-pulling element and fed to a control valve upstream of the side-pulling element.
- the control valve then adapts a blown air pressure and / or a cycle of a blown air supply to an ejector element for supplying the side-pulling organ with suction air.
- a blowing air pressure is advantageously adjusted by the regulating valve and a cycle of a blowing air supply at an ejector element is adjusted by a solenoid valve for supplying the side pulling element with suction air.
- a blown air supply is advantageously switched from the solenoid valve to a suction line connected between an ejector element and the side-pulling element in order to supply the side-pulling element with suction air.
- the sensor (s) advantageously also detect the position of the sheet perpendicularly above a carrier plate forming the alignment plane.
- control actions for changing the setting of the strength of the negative pressure supplied to the side-pulling element are processed and fed to a control valve assigned to the side-pulling element.
- a lateral position signal and an altitude signal are advantageously fed to a control unit from the sensor (s), whereby a control signal is generated in the control unit and fed to the regulating valve.
- An arrangement for carrying out a method for the lateral alignment of sheets of printing material conveyed in a conveying direction to a sheet-fed printing machine. It contains a sheet to be printed by means of a side-pulling element which can be driven below or in a feed table or in time with the incoming sheets by a drive to produce a side-pulling movement and can be acted upon with suction air. This captures the sheet of printing material in a starting position and conveys it to a side alignment position defined by an adjustable side stop.
- the side pulling element is designed as a suction plate that can be acted upon by a negative pressure and which is transverse to the feed table in the feed table Conveying direction of the sheet from a starting position to the side alignment position can be driven movably by the drive.
- the suction plate can be connected to an overpressure source by means of an ejector element via a control valve.
- the control valve is connected to a control unit which is designed to process sheet position signals from one or more sensors.
- the suction plate can advantageously be connected to the overpressure source via a control valve and a solenoid valve, the solenoid valve generating a cycle of the blown air supply to the ejector element to supply the suction plate with suction air.
- the suction plate can advantageously be connected to the overpressure source by means of the control valve and the solenoid valve.
- the control valve and the solenoid valve are connected to a control unit which is designed to process sheet position signals from one or more sensors.
- the sensor (s) are designed to detect the position of the side edge of the sheet on the side stop and / or the position of the sheet perpendicular to the conveying plane of the sheet on the feed table.
- the sensor (s) together with the side stop can be continuously adjusted to different side alignment positions, the sensor (s) and the side stop being arranged on a carrier plate. Its surface extends in the plane of the feed table and can be adjusted by a motor drive transversely to the conveying direction controlled by a control unit.
- the device for supplying blown air for the controlled supply of blown air is connected via the solenoid valve to a suction line connected between an ejector element and the suction plate, which serves to supply the suction plate with suction air.
- Fig. 1 shows an embodiment of an arrangement on which the invention is based for the side alignment of sheets in sheet processing machines according to the prior art.
- the arrangement includes a feed table 1, which is arranged following a conveyor table and on which individual sheets are conveyed in the sheet conveying direction 2 for contact with front lays 18. The sheets are fed in at the rate of a sheet processing machine, not shown.
- the front lays 18 are arranged so as to be pivotable and drivable with respect to a contact plate 3.
- a carrier plate 4 is arranged at least in a left or right edge area, the surface of which extends in the plane of the feed table 1.
- a concertina grille 5 is arranged, the upper guide surface of which, formed by side edges of the concertina armature 5, also extends in the plane of the feed table 1.
- the carrier plate 4 can be adjusted transversely to the conveying direction 2 by a compensation path 14 by a motor drive 6.
- a rectangular guide recess 7, which is open towards the top, is formed, in which a suction plate 8 is guided so that it can be moved transversely to the conveying direction 2 by a maximum pulling path 9.
- the suction plate 8 which has a large number of suction openings 10 open towards the top, can be driven in the cycle of the sheet processing machine from its illustrated starting position, removed from the side edge of the carrier plate 4, in the direction of the side edge up to a side alignment position.
- a spindle 11 that can be rotatably driven by an electric servomotor 11 acts on the suction plate 8.
- a cam drive operated in machine cycle can also be used here.
- the underside of the suction plate 8 can be acted upon with negative pressure, which can be supplied to the suction plate 8 by a negative pressure pump 13 forming a negative pressure source via a 2/2-way valve 12.
- One or two optical sensors 15 are arranged on the carrier plate 4, the position of which is directed to the side alignment position of the sheet edges.
- the side alignment position is defined by a mechanical side stop 19, which can be adjusted together with the sensor (s) 15 in the transverse direction.
- a 2/2-way valve 12 which is designed as a solenoid valve, is switched to the suction position shown, so that the suction openings 10 of the suction plate 8 can be subjected to negative pressure.
- the required negative pressure is generated by means of a negative pressure pump 13 and passed through a control valve 20. As a result, the sheet is sucked against the suction plate 8 and thus captured.
- the suction plate 8 is now moved by means of the drive from the servo motor 11 from the illustrated starting position in the direction of the side stop 19 and the sensor 15 until the side edge of the sheet meets the side stop 19 and thus the sensing or detection area of the sensor 15 reached.
- the sensor 15 detects the arrival of the side edge of the sheet in the page alignment position defined by the scanning area and generates a page position signal which is sent to the control unit 16, which then sends a first stop signal to the servomotor 11 to terminate its page pulling movement.
- the side position signal triggers a second stop signal in the control unit 16, which is fed to the 2/2-way valve 12 so that it switches from its suction position to a ventilation position.
- a second stop signal in the control unit 16 which is fed to the 2/2-way valve 12 so that it switches from its suction position to a ventilation position.
- atmospheric air reaches the suction plate 8 via the 2/2-way valve 12, so that the sheet is released from the suction plate 8.
- the front lays 18 in front of the contact plate 3 then move from their vertical contact or alignment position into an essentially horizontal position, so that the sheet, which is now fully aligned according to its leading edge and one side edge, can be fed to the further processing machine in the sheet conveying direction 2.
- the servomotor 11 moves the suction plate 8 back to its starting position so that the next sheet can be grasped and aligned in the same way as the previous sheet.
- the sheets are fed either in a single sheet stream or in an imbricated stream on the feed table 1 to the contact plate 3 and to contact the front lays 18. These and other control parameters can be fed to the control unit 16 by means of a control station 17.
- the sensors 15 contain the functions for checking the position of the side edge of the sheet to be aligned and for detecting sheet deformations in position or edge contour in the event of incorrect settings of the suction air for the pneumatic side mark or its suction device.
- the values determined by the sensors 15 are fed to the control unit 16, which uses them to determine control values for the electrically controllable regulating valve 20, which is designed like the above-mentioned switching valve 12 or is arranged in connection with it.
- the control valve 19 can have a servomotor which processes the control values for changing or adapting the strength of the suction air setting generated by the vacuum pump 13. Both the position of the side edge of the sheet relative to the side stop 19 and the position of the sheet edge on or above the carrier plate 4 in relation to the sensor (s) 15 are detected. Thus, the complete alignment at the side stop 19 or insufficient suction of the sheet or excessive suction of the sheet, which causes a deformation of the side edge of the sheet, can be detected.
- the negative pressure can thus be adjusted in such a way that neither insufficient suction nor excessive suction can be avoided.
- the advantage here is that the sheet travel is automatically adjusted during the page alignment so that the suction air setting does not have to be constantly readjusted manually when the speeds of a sheet processing machine change or when the printing material or the printing material quality changes.
- a suction air setting appropriate for the printing material can be preselected.
- the use of suction plates 8 adapted to the printing material with regard to suction openings 10 for the side suction suction device can be monitored and can be set.
- the movement of the side edge of the sheet to be aligned can be recorded with a camera in the area of the side stop 19 of the pneumatic side mark and made available at the control station 17. This significantly improves the monitoring of the page orientation.
- the side pulling device can also have a sensor for detecting the alignment position of the side edge of the sheet to be aligned. The other sensors are then used to pre-control the sheet alignment.
- a page mark arrangement according to FIG Figure 2 an overpressure generator 13.1 and at least one ejector element 13.2 for supplying air to the suction plate 8.
- the ejector element 13.2 is connected to the suction plate 8 via a suction line 13.3 and to the overpressure source 13.1 via a blown air line 13.4.
- the blown air for generating the suction air on the suction plate 8 is blown off again directly on the ejector element 13.2.
- the control unit 16 opens and closes a first valve 12 arranged between the overpressure generator 13.1 and the ejector element 13.2 during each working cycle, the inlet of the ejector element 13.2 being acted upon by an overpressure air flow through the blown air line 13.4 and this through the Ejector element 13.2 flows to an outlet leading to the atmosphere.
- a vacuum consumer here the suction plate 8 or a partial suction area thereof, is coupled between the inlet and the outlet of the ejector element 13.2 via a suction line 13.3.
- the control unit 16 opens the first valve 12 in accordance with the respective work cycle per unit of time at the associated opening time and closes it at the associated closing time. This means that the amount of suction air required per work cycle for generated the suction plate 8 or a partial suction area thereof. This takes place as a function of the setting of the control valve 20, with the aid of which the blown air supply to the ejector element 13.2 is controlled so that the suction air can be adapted to current requirements depending on the operating conditions and material properties of the sheets to be processed.
- one or more ejector elements 13.2 are used to generate air. These are coupled to an overpressure generator 13.1 and are connected to the working element (s) of the side mark via at least one suction line 13.3.
- the overpressure generator 13.1 of the ejector elements 13.2 is assigned at least one solenoid valve, such as the 2/2-way valve 12, which is designed for the time-controlled supply of compressed air to the ejector element (s) 13.2 via the blown air line 13.4.
- the use of a plurality of ejector elements 13. 2 is preferable in the case of side marks arranged on both sides of the feed table 1.
- the ejector element 13.2 is connected to one or more working organs.
- the suction plate 8 of the side mark serves as the working organ here.
- the suction plate 8 can here also be provided with several areas to be supplied separately with suction air, which are then connected to an ejector element 13.2, each controlled by an independently controlled ejector element 13.2 via a suction line 13.3.
- a device for ventilating the suction plate 8 can be connected to the respective suction line 13.3 in the area between an ejector element 13.2 and the suction plate 8. wherein the suction plate via the suction line 13.3 continues to be connected to the air connection of the ejector element 13.2, which is provided for the supply of suction air. Air is then fed into the suction line 13.3 in such a way that the suction air is interrupted in a specific work cycle and the existing negative pressure is briefly reduced with blown air.
- the order data relating to a sheet-like printing material has the following parameters to be taken into account: printing material or sheet format, printing material thickness, printing material or paper class, printing material, shape properties and transport properties
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Controlling Sheets Or Webs (AREA)
- Registering Or Overturning Sheets (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
Description
Die Erfindung bezieht sich auf ein Verfahren und eine Anordnung zur seitlichen Ausrichtung von Bogen.
Verfahren und Anordnungen zur seitlichen Ausrichtung von Bogen in einer Förderrichtung sind in zu einer Bogen verarbeitenden Maschine geförderten Bogen, bei denen die zu bedruckenden Bogen mittels eines unterhalb oder im Anlegetisch angeordneten, im Takt der ankommenden Bogen von einem Antrieb zu einer Seitenziehbewegung antreibbaren Seitenziehorgans in einer Ausgangsposition erfasst und bis zu einer Seitenausrichtposition gefördert werden. Dieses Seitenziehorgan ist als pneumatische Seitenmarke mit einem Sauger als Ziehorgan ausgeführt.The invention relates to a method and an arrangement for the lateral alignment of sheets.
Methods and arrangements for the lateral alignment of sheets in a conveying direction are in sheets conveyed to a sheet processing machine, in which the sheets to be printed are in a side-pulling organ that can be driven by a drive to a side-pulling movement by means of a side-pulling organ that is arranged below or in the feed table and in time with the incoming sheets Starting position detected and conveyed to a side alignment position. This side pulling element is designed as a pneumatic side mark with a suction device as a pulling element.
Durch stetige Leistungserhöhungen unserer Druckmaschinen ist die pneumatische Seitenmarke in die Jahre gekommen und kann das moderne Anforderungsprofil Geschwindigkeit und Bedruckstoffvielfalt nicht mehr ausreichend erfüllen.
Bisher wurden pneumatische Seitenmarken mittels eines Regulierventils manuell eingestellt. Dieser Vorgang ist aufwändig und fehleranfällig.Due to the constant increase in the performance of our printing machines, the pneumatic page mark is getting on in years and can no longer adequately meet the modern requirement profile of speed and printing material variety.
Until now, pneumatic side marks were set manually using a regulating valve. This process is complex and error-prone.
Bei einem aus der
Der Unterdruck am Sauger ist feinfühlig auf den jeweils zu verarbeitenden Bogen einzustellen. Ist der Unterdruck hoch, kommt es zu Beschädigungen des Bogens. Wenn der Unterdruck des Saugers aber so gering ist, dass aufgrund der geringen Haltekraft keine schlupflose kontinuierliche Förderung stattfindet, wird bei der Ausrichtbewegung des Bogens der Seitenanschlag nicht erreicht, so dass keine korrekte Seitenausrichtung erfolgt. Dies ist insbesondere bei dünnen Bogen der Fall. In anderer Hinsicht können beim Durchrutschen der Sauger an der Unterseite des Bogens durch die dabei sich ergebenden Relativbewegungen zwischen Sauger und Bogen auch sehr schädliche statische Aufladungen der Bogen erzeugt werden, da diese den weiteren Bogenlauf stören würden.With one of the
The vacuum on the suction cup is to be set sensitively to the sheet to be processed. If the vacuum is high, the sheet will be damaged. But if the vacuum of the suction cup is so low that it is because of the low Holding force, no slip-free continuous conveyance takes place, the side stop is not reached during the aligning movement of the sheet, so that no correct side alignment takes place. This is especially the case with thin sheets. In other respects, when the suction cups slip through on the underside of the sheet, the resulting relative movements between the suction cups and the sheet can also generate very damaging static charges on the sheets, since these would interfere with the further sheet travel.
Die
Aus der
Aufgabe der Erfindung ist es ein Verfahren und eine Anordnung zur Durchführung des Verfahrens zu schaffen, so dass die Bogen beschädigungsfrei korrekt seitenausgerichtet werden und die Einstellung des Seitenziehorgans vereinfacht wird.The object of the invention is to create a method and an arrangement for carrying out the method, so that the sheets are correctly laterally aligned without damage and the setting of the side-pulling member is simplified.
Diese Aufgabe wird erfindungsgemäß durch die Merkmale eines Verfahrens nach Anspruch 1 und einer Anordnung nach Anspruch 7 gelöst.This object is achieved according to the invention by the features of a method according to
Erfindungsgemäß wird die Saugluftversorgung der Seitenmarke mittels eines mit gezielt steuerbarer Blasluft betriebenen Ejektorsystems vorgenommen.
Es ergeben sich verschiedene Vorteile der neuen Ausführungsform mit Verwendung von blasluftbetriebenen Ejektoren anstatt einer Einrichtung mit Unterdruckversorgung durch ein Gebläse. Leistungserhöhung bis 25.000 Bg./H. Die mangelhaften Einstellungsmöglichkeiten mittels einer mechanischen Steuerwalze in Bezug auf ein materialangepasstes und kundenspezifisches Regeln der Seitenmarke hinsichtlich Zeitpunkt und Profil der Saugluftbeaufschlagung muss nun nicht mehr über eine mangelhafte Steuerung des Unterdruckes ermöglicht werden.
Diverse Zusatzeinrichtung zur Führung der Bogenkanten, die etwa als Rollen oder Röllchen, unterschiedliche Ziehplättchen oder so genannte Nähmaschinenfüßchen, z.T. noch unter Verwendung diverser Beschichtungen können bei Anwendung der neuartigen Luftversorgung entfallen. Die komplizierte Bedienbarkeit und somit das Fehlerrisiko sinkt, auch die Wartungshäufigkeit kann reduziert werden.According to the invention, the suction air is supplied to the side mark by means of an ejector system operated with specifically controllable blown air.
There are various advantages of the new embodiment with the use of blown air-operated ejectors instead of a device with negative pressure supply by a fan. Increase in performance up to 25,000 Bg./H. The inadequate setting options by means of a mechanical control roller in relation to a material-adapted and customer-specific regulation of the side mark with regard to the time and profile of the suction air application no longer has to be made possible by inadequate control of the negative pressure.
Various additional devices for guiding the sheet edges, such as rollers or small rolls, different drawing plates or so-called sewing machine feet, sometimes still using various coatings, can be omitted when using the new air supply. The complicated operability and thus the risk of errors is reduced, and the frequency of maintenance can also be reduced.
Die Luftversorgung der Seitenmarke mit Ejektoren hat eine ganze Reihe von Vorteilen aufzuweisen:
- ein breites Spektrum mit unterschiedlich hohen Unterdrücken
- ein Regeln der Länge und des Zeitpunktes der Ziehfunktion der Seitenmarke ohne mechanische Steuermittel
- schnelleres Erreichen des gewünschten Unterdrucks
- bessere, schnellere Entlüftung der Sauger der Seitenmarke, um den Folgebogen nicht zu beeinflussen
- Steuerprofile in Bezug auf Dimension, Art und Qualität des Bedruckstoff
- Auftragsprofil ist bezüglich materialabhängiger Einstellungen ist über den Leitstand der Druckmaschine umsetzbar.
- a broad spectrum with different levels of negative pressure
- regulating the length and the time of the pulling function of the page mark without mechanical control means
- faster achievement of the desired negative pressure
- Better, faster ventilation of the suction cups of the page mark so as not to affect the subsequent sheet
- Control profiles with regard to dimension, type and quality of the printing material
- The job profile can be implemented with regard to material-dependent settings via the control station of the printing press.
Hierbei ist vorgesehen, dass beim Erreichen der Seitenausrichtposition des Bogens die Seitenkante und eine Bogenverformung von einem Sensor erfasst werden. Die erzeugten Signale werden zum Ansteuern einer Luftversorgung für die pneumatische Seitenmarke verwendet.
Dadurch wird der Bogen ständig mit einer ausreichenden Haltekraft des Seitenziehorgans erfasst, so dass ein schlupffreies Halten gewährleistet ist ohne zu einer Deformation des Bogens zu führen. Eine feinfühlige Einstellung der Haltekraft auf die jeweils zu verarbeitende Bogenart ist nicht mehr manuell erforderlich.It is provided here that when the sheet reaches the side alignment position, the side edge and sheet deformation are detected by a sensor. The generated signals are used to control an air supply for the pneumatic page mark.
As a result, the sheet is constantly gripped with sufficient holding force on the part of the side-pulling member, so that a slip-free holding is ensured without leading to a deformation of the sheet. A sensitive adjustment of the holding force to the type of sheet to be processed is no longer necessary manually.
Vorzugsweise wird von dem oder den Sensoren je ein Signal einer Steuereinheit zugeleitet, wodurch in der Steuereinheit ein Steuersignal generiert und ausgelöst und dem Antrieb eines Regelventils für die Versorgung der Seitenmarke mit Saugluft zugeführt wird.
Sollte sich die Reaktionsgeschwindigkeit beim Beenden der Seitenziehbewegung aufgrund der Trägheit des Sensors und/oder der nachfolgenden mechanischen Bauteile dazu führen, dass sich die Position des ideellen Seitenanschlags verändert, kann durch insbesondere empirisch ermittelte Vorhaltezeiten eine Korrektur der Beendigung der Seitenziehbewegung erfolgen.A signal is preferably sent from the sensor or sensors to a control unit, whereby a control signal is generated and triggered in the control unit and fed to the drive of a control valve for supplying the side mark with suction air.
Should the reaction speed change when the side pull movement is ended due to the inertia of the sensor and / or the subsequent mechanical components, the position of the ideal side stop changes, the end of the side pull movement can be corrected by means of empirically determined lead times in particular.
In einer der Erfindung zu Grunde liegenden Anordnung zur Durchführung des Verfahrens dadurch gelöst, dass das Seitenziehorgan ein mit Unterdruck von einer Unterdruckquelle beaufschlagbarer Sauger ist, der quer zur Förderrichtung der Bogen aus einer Ausgangsposition bis zur Seitenausrichtposition vom Antrieb bewegbar antreibbar ist, wobei zur schonenden Erfassung der Bogen der Sauger eine Saugerplatte sein kann.
Zum Erfassen und Halten des Bogens während der Seitenausrichtung ist der Sauger vorzugsweise über ein Schaltventil mit der Unterdruckquelle verbindbar.
Ist dabei das Schaltventil ein 2/2-Wegeventil, in dessen einer Schaltstellung der Sauger mit der Unterdruckquelle und in dessen zweiter Schaltstellung der Sauger mit Atmosphäre oder einer Überdruckquelle verbindbar ist, so erfolgt nach Erreichen der Seitenausrichtposition ein Umschalten von der ersten Schaltstellung in die zweite Schaltstellung und damit ein Belüften des Saugers, so dass der Bogen von dem Sauger gelöst wird. Zur schnellen Schaltbarkeit kann das Schaltventil als Magnetventil ausgebildet sein. Um eine mechanische Beeinflussung der Bogenposition zu vermeiden, kann der Sensor ein berührungsloser Sensor sein, wobei vorzugsweise der Sensor ein optischer Sensor ist.
Die Sensoren beinhalten Funktionen zur Kontrolle der Lage der Seitenkante der auszurichtenden Bogen und zur Erfassung von Bogenverformungen bei fehlerhaften Einstellungen der Saugluft für die pneumatische Seitenmarke bzw. deren Sauger. Die von den Sensoren ermittelten Werte werden einer Steuerung zugeleitet, die daraus Stellwerte für ein elektrisch ansteuerbares Regelventil ermittelt, das wie das oben genannte Schaltventil ausgebildet oder in Verbindung mit diesem angeordnet ist. Das Regulierventil kann einen Stellmotor aufweisen, der die Stellwerte zur Veränderung oder Anpassung der Sauglufteinstellung verarbeitet.In an arrangement for carrying out the method on which the invention is based, the lateral pulling element is a suction device that can be acted upon by negative pressure from a negative pressure source and that can be moved by the drive transversely to the conveying direction of the sheets from a starting position to the lateral alignment position, whereby for gentle detection the arc of the suction cup can be a suction plate.
In order to grasp and hold the sheet during the lateral alignment, the suction device can preferably be connected to the vacuum source via a switching valve.
If the switching valve is a 2/2-way valve, in one switching position of which the sucker can be connected to the vacuum source and in whose second switching position the sucker can be connected to atmosphere or an overpressure source, a switchover from the first switching position to the second takes place after the lateral alignment position has been reached Switching position and thus ventilation of the suction cup, so that the sheet is released from the suction cup. For quick switchability, the switching valve can be used as a Be designed solenoid valve. In order to avoid mechanical influencing of the sheet position, the sensor can be a contactless sensor, the sensor preferably being an optical sensor.
The sensors contain functions for checking the position of the side edge of the sheet to be aligned and for detecting sheet deformations in the event of incorrect settings of the suction air for the pneumatic side mark or its suction device. The values determined by the sensors are sent to a controller, which uses them to determine control values for an electrically controllable regulating valve which is designed like the switching valve mentioned above or is arranged in connection with it. The regulating valve can have a servomotor which processes the control values for changing or adapting the suction air setting.
Vorteilhaft ist dabei, dass der Bogenlauf während der Seitenausrichtung automatisiert wird. Bei wechselnden Geschwindigkeiten einer Bogen verarbeitenden Maschine oder bei wechselnden Bedruckstoffen oder Bedruckstoffqualitäten muss die Sauglufteinstellung nicht ständig nachjustiert werden. Bei Eingabe einer Bedruckstoffqualität oder einer Bedruckstoffstärke am Leitstand der Bogen verarbeitenden Maschine kann eine dem Bedruckstoff angemessene Sauglufteinstellung vorgewählt werden. Zusätzlich kann die Verwendung von an den Bedruckstoff angepassten Saugplatten für den Seitenziehsauger überwacht und eingestellt werden.The advantage here is that the sheet travel is automated during the page alignment. The suction air setting does not have to be constantly readjusted with changing speeds of a sheet processing machine or with changing printing materials or printing material qualities. When entering a printing material quality or a printing material thickness at the control station of the sheet processing machine, a suction air setting appropriate for the printing material can be preselected. In addition, the use of suction plates adapted to the printing material for the side suction cup can be monitored and set.
Weiterhin kann die Bewegung der Seitenkante der auszurichtenden Bogen mit einer Kamera im Bereich des Seitenanschlags der pneumatischen Seitenmarke aufgenommen und am Leitstand verfügbar gemacht werden. So wird die Überwachung der Seitenausrichtung deutlich verbessert.Furthermore, the movement of the side edge of the sheet to be aligned can be recorded with a camera in the area of the side stop of the pneumatic side mark and made available at the control station. This significantly improves the monitoring of the page orientation.
Die Erfindung gestaltet sich also in einem Verfahren zur seitlichen Ausrichtung von Bogen, die in einer Förderrichtung zu einer Bogendruckmaschine gefördert werden. Dabei werden die zu bedruckenden Bogen mittels eines in einem Anlegetisch im Takt der ankommenden Bogen von einem Antrieb zu einer Seitenziehbewegung antreibbaren und mit Unterdruck beaufschlagbaren Seitenziehorgans ausgerichtet. Dabei werden die Bogen in einer Ausgangsposition erfasst und bis zu einer Seitenausrichtposition gefördert, welche von einem Seitenanschlag oder einer Sensorposition definiert ist. Das Erreichen der Seitenausrichtposition des Bogens wird von einem Sensor erfasst, der ein entsprechendes Seitenpositionssignal erzeugt. Mittels Sensoren wird die Bogenlage erfasst und die Signale des/der Sensoren werden zur verändernden Einstellung der Stärke des dem Seitenziehorgan zugeleiteten Unterdrucks verarbeitet und einem dem Seitenziehorgan vorgeordneten Regelventil zugeleitet. Danach werden von dem Regelventil ein Blasluftdruck und/oder ein Takt einer Blasluftversorgung an einem Ejektorelement zur Versorgung des Seitenziehorgans mit Saugluft angepasst.
Vorteilhaft wird von dem Regelventil ein Blasluftdruck und von einem Magnetventil ein Takt einer Blasluftversorgung an einem Ejektorelement zur Versorgung des Seitenziehorgans mit Saugluft angepasst.
Vorteilhaft wird von dem Magnetventil eine Blasluftversorgung an einer zwischen einem Ejektorelement und dem Seitenziehorgan geschalteten Saugleitung zur Versorgung des Seitenziehorgans mit Saugluft geschaltet wird.
Vorteilhaft erfassen der/die Sensoren neben der Seitenposition auch die Lage des Bogens senkrecht über einer die Ausrichtebene bildenden Trägerplatte. Weiterhin werden in Bezug die Signale des/der Sensoren Steueraktionen zur verändernden Einstellung der Stärke des dem Seitenziehorgan zugeleiteten Unterdrucks verarbeitet und einem dem Seitenziehorgan zugeordneten Regelventil zugeleitet. Vorteilhaft wird von dem/den Sensoren ein Seitenpositionssignal und ein Höhenlagensignal einer Steuereinheit zugeleitet, wodurch in der Steuereinheit ein Steuersignal generiert und dem Regelventil zugeführt.The invention is thus embodied in a method for the lateral alignment of sheets which are conveyed in one conveying direction to a sheet-fed printing machine. In this case, the sheets to be printed are aligned by means of a side-pulling organ that can be driven by a drive to a side-pulling movement and can be subjected to negative pressure in a feed table in time with the incoming sheets. The sheets are captured in a starting position and conveyed to a side alignment position, which is from a side stop or a Sensor position is defined. The reaching of the page registration position of the sheet is detected by a sensor which generates a corresponding page position signal. The sheet position is detected by sensors and the signals from the sensor (s) are processed to change the setting of the strength of the negative pressure supplied to the side-pulling element and fed to a control valve upstream of the side-pulling element. The control valve then adapts a blown air pressure and / or a cycle of a blown air supply to an ejector element for supplying the side-pulling organ with suction air.
A blowing air pressure is advantageously adjusted by the regulating valve and a cycle of a blowing air supply at an ejector element is adjusted by a solenoid valve for supplying the side pulling element with suction air.
A blown air supply is advantageously switched from the solenoid valve to a suction line connected between an ejector element and the side-pulling element in order to supply the side-pulling element with suction air.
In addition to the lateral position, the sensor (s) advantageously also detect the position of the sheet perpendicularly above a carrier plate forming the alignment plane. Furthermore, in relation to the signals of the sensor (s), control actions for changing the setting of the strength of the negative pressure supplied to the side-pulling element are processed and fed to a control valve assigned to the side-pulling element. A lateral position signal and an altitude signal are advantageously fed to a control unit from the sensor (s), whereby a control signal is generated in the control unit and fed to the regulating valve.
Eine Anordnung ist zur Durchführung eines Verfahrens zur seitlichen Ausrichtung von in einer Förderrichtung zu einer Bogendruckmaschine geförderten Bedruckstoffbogen vorgesehen. Sie enthält ein die zu bedruckenden Bogen mittels eines unterhalb oder in einem Anlegetisch oder im Takt der ankommenden Bogen von einem Antrieb zu einer Seitenziehbewegung antreibbaren und mit Saugluft beaufschlagbares Seitenziehorgan. Diese erfasst die Bedruckstoffbogen in einer Ausgangsposition und fördert es bis zu einer von einem einstellbaren Seitenanschlag definierten Seitenausrichtposition. Das Seitenziehorgan ist als eine mit einem Unterdruck beaufschlagbare Saugerplatte ausgebildet, die im Anlegetisch quer zur Förderrichtung der Bogen aus einer Ausgangsposition bis zur Seitenausrichtposition vom Antrieb bewegbar antreibbar ist. Die Saugerplatte ist mittels eines Ejektorelementes über ein Regelventil mit einer Überdruckquelle verbindbar. Das Regelventil ist mit einer Steuereinheit, die zur Verarbeitung von Bogenlage-signalen eines oder mehrerer Sensoren ausgebildet ist, verbunden.
Vorteilhaft ist die Saugerplatte über ein Regelventil und ein Magnetventil mit der Überdruckquelle verbindbar, wobei das Magnetventil einen Takt der Blasluftversorgung zum Ejektorelement zur Versorgung der Saugerplatte mit Saugluft erzeugt.
Vorteilhaft ist die Saugerplatte mittels des Regelventils und mit dem Magnetventil mit der Überdruckquelle verbindbar. Das Regelventil und das Magnetventil mit einer Steuereinheit verbunden, die zur Verarbeitung von Bogenlagesignalen eines oder mehrerer Sensoren ausgebildet ist. Der/die Sensoren sind zur Erfassung der Lage der Seitenkante der Bogen an dem Seitenanschlag und/oder der Lage des Bogens senkrecht zur Förderebene der Bogen auf dem Anlegetisch ausgebildet. Vorteilhaft sind der/die Sensoren gemeinsam mit dem Seitenanschlag stufenlos auf unterschiedliche Seitenausrichtpositionen einstellbar, wobei der/die Sensoren und der Seitenanschlag an einer Trägerplatte angeordnet sind. Deren Oberfläche erstreckt sich in der Ebene des Anlegetischs und ist von einem motorischen Antrieb quer zur Förderrichtung von einer Steuereinheit angesteuert verstellbar. Vorteilhaft ist die Einrichtung zur Blasluftzufuhr zur gesteuerten Blasluftversorgung über das Magnetventil mit einer zwischen einem Ejektorelement und der Saugerplatte geschalteten Saugleitung verbunden, welche zur Versorgung der Saugerplatte mit Saugluft dient.An arrangement is provided for carrying out a method for the lateral alignment of sheets of printing material conveyed in a conveying direction to a sheet-fed printing machine. It contains a sheet to be printed by means of a side-pulling element which can be driven below or in a feed table or in time with the incoming sheets by a drive to produce a side-pulling movement and can be acted upon with suction air. This captures the sheet of printing material in a starting position and conveys it to a side alignment position defined by an adjustable side stop. The side pulling element is designed as a suction plate that can be acted upon by a negative pressure and which is transverse to the feed table in the feed table Conveying direction of the sheet from a starting position to the side alignment position can be driven movably by the drive. The suction plate can be connected to an overpressure source by means of an ejector element via a control valve. The control valve is connected to a control unit which is designed to process sheet position signals from one or more sensors.
The suction plate can advantageously be connected to the overpressure source via a control valve and a solenoid valve, the solenoid valve generating a cycle of the blown air supply to the ejector element to supply the suction plate with suction air.
The suction plate can advantageously be connected to the overpressure source by means of the control valve and the solenoid valve. The control valve and the solenoid valve are connected to a control unit which is designed to process sheet position signals from one or more sensors. The sensor (s) are designed to detect the position of the side edge of the sheet on the side stop and / or the position of the sheet perpendicular to the conveying plane of the sheet on the feed table. Advantageously, the sensor (s) together with the side stop can be continuously adjusted to different side alignment positions, the sensor (s) and the side stop being arranged on a carrier plate. Its surface extends in the plane of the feed table and can be adjusted by a motor drive transversely to the conveying direction controlled by a control unit. Advantageously, the device for supplying blown air for the controlled supply of blown air is connected via the solenoid valve to a suction line connected between an ejector element and the suction plate, which serves to supply the suction plate with suction air.
Ein Ausführungsbeispiel der Erfindung ist in Zeichnungen dargestellt und wird im Folgenden näher beschrieben. Dabei zeigt
- Figur1
- eine schematische Sicht einer Seitenmarkenanordnung nach dem Stand der Technik und
- Figur2
- eine schematische Sicht einer erfindungsgemäßen Seitenmarken-anordnung.
- Figure 1
- a schematic view of a side marker arrangement according to the prior art and
- Figure2
- a schematic view of a side mark arrangement according to the invention.
Die eine Vielzahl zur Oberseite hin offene Saugöffnungen 10 aufweisende Saugerplatte 8 ist im Takt der Bogen verarbeitenden Maschine aus ihrer dargestellten, vom Seitenrand der Trägerplatte 4 entfernten Ausgangsposition in Richtung zum Seitenrand hin bis zu einer Seitenausrichtposition bewegbar antreibbar.
Dazu greift in diesem Fall eine von einem elektrischen Servomotor 11 drehbar antreibbare Spindel 11 an der Saugerplatte 8 an. Hier kann auch ein im Maschinentakt betriebener Kurventrieb verwendet werden.
Die Saugerplatte 8 ist an ihrer Unterseite mit Unterdruck beaufschlagbar, der von einer eine Unterdruckquelle bildenden Unterdruckpumpe 13 über ein 2/2-Wegeventil 12 der Saugerplatte 8 zuführbar ist.
The
For this purpose, in this case a
The underside of the
An der Trägerplatte 4 sind ein oder zwei optische Sensoren 15 angeordnet, deren Position auf die Seitenausrichtposition der Bogenkanten gerichtet ist. Die Seitenausrichtposition wird durch einen mechanischen Seitenanschlag 19 definiert, der gemeinsam mit dem/den Sensoren 15 in Querrichtung einstellbar ist.One or two
Gelangt entsprechend dem Takt der Bogen verarbeitenden Maschine ein Bogen über das Anlageblech 3 zur Anlage an den Vordermarken 18, wird ein 2/2-Wegeventil 12, das als Magnetventil ausgebildet ist, in die dargestellte Saugstellung geschaltet, so dass die Saugöffnungen 10 der Saugerplatte 8 mit Unterdruck beaufschlagt werden. Der erforderliche Unterdruck wird mittels einer Unterdruckpumpe 13 erzeugt und über ein Regelventil 20 geführt. Dadurch wird der Bogen gegen die Saugerplatte 8 gesaugt und somit erfasst.If, in accordance with the cycle of the sheet processing machine, a sheet reaches the
Gesteuert von einer Steuereinheit 16 wird nun die Saugerplatte 8 mittels des Antriebs von dem Servomotor 11 aus der dargestellten Ausgangsposition in Richtung auf den Seitenanschlag 19 und den Sensor 15 zu bewegt, bis der Seitenrand des Bogens den Seitenanschlag 19 und damit Tast- oder Erfassungsbereich des Sensors 15 erreicht. Der Sensor 15 erfasst die Ankunft der Seitenkante des Bogens in der durch den Tastbereich definierten Seitenausrichtposition und erzeugt ein Seitenpositionssignal, das der Steuereinheit 16 zugeleitet wird, die daraufhin ein erstes Stoppsignal dem Servomotor 11 dessen Seitenziehbewegung beendend zuführt.Controlled by a
Weiterhin wird durch das Seitenpositionssignal ein zweites Stoppsignal in der Steuereinheit 16 ausgelöst, das dem 2/2-Wegeventil 12 zugeführt wird, so dass dieses aus seiner dargestellten Saugstellung in eine Belüftungsstellung umschaltet.
In der Belüftungsstellung gelangt Atmosphärenluft über das 2/2-Wegeventil 12 zur Saugerplatte 8, so dass der Bogen von der Saugerplatte 8 gelöst wird.Furthermore, the side position signal triggers a second stop signal in the
In the ventilation position, atmospheric air reaches the
Die Vordermarken 18 vordem Anlageblech 3 bewegen sich sodann aus ihrer senkrechten Anlage- bzw. Ausrichtposition in eine im Wesentlichen waagrechte Position, so dass der nach seiner Vorderkante und der einen Seitenkanten nunmehr vollständig ausgerichtete Bogen der weiterverarbeitenden Maschine in Bogenförderrichtung 2 zugeführt werden kann.
Gleichzeitig fährt der Servomotor 11 die Saugerplatte 8 wieder zurück in deren Ausgangsposition, damit der nunmehr nächste Bogen erfasst und in der gleichen Weise wie der vorhergehende Bogen ausgerichtet werden kann.The front lays 18 in front of the
At the same time, the
Dabei werden die Bogen entweder in einem Einzelbogenstrom oder in einem Schuppenstrom auf dem Anlegetisch 1 dem Anlageblech 3 und zur Anlage an den Vordermarken 18 zugeführt. Diese und andere Steuerungsparameter sind mittels eines Leitstandes 17 der Steuereinheit 16 zuführbar.The sheets are fed either in a single sheet stream or in an imbricated stream on the feed table 1 to the
Die Sensoren 15 beinhalten die Funktionen zur Kontrolle der Lage der Seitenkante der auszurichtenden Bogen und zur Erfassung von Bogenverformungen in Lage oder Kantenkontur bei fehlerhaften Einstellungen der Saugluft für die pneumatische Seitenmarke bzw. deren Sauger.The
Die von den Sensoren 15 ermittelten Werte werden der Steuereinheit 16 zugeleitet, die daraus Stellwerte für das elektrisch ansteuerbare Regelventil 20 ermittelt, das wie das oben genannte Schaltventil 12 ausgebildet oder in Verbindung mit diesem angeordnet ist. Das Regelventil 19 kann einen Stellmotor aufweisen, der die Stellwerte zur Veränderung oder Anpassung der Stärke der von der Unterdruckpumpe 13 erzeugten Sauglufteinstellung verarbeitet.
Dabei wird sowohl die Lage der Seitenkante der Bogen zum Seitenanschlag 19 als auch die Position der Bogenkante auf oder über der Trägerplatte 4 in Bezug auf den oder die Sensoren 15 erfasst. Somit kann die vollständige Ausrichtung an dem Seitenanschlag 19 oder ein ungenügendes Ansaugen des Bogens oder eine zu starkes Ansaugen des Bogens, das eine Verformung der Seitenkante des Bogens erzeugt, erfasst werden.
Damit kann der Unterdruck so angepasst werden, dass weder eine ungenügende Ansaugung als auch eine zu starke Ansaugung vermieden werden. Vorteilhaft ist dabei, dass der Bogenlauf während der Seitenausrichtung selbsttätig angepasst wird, so dass bei wechselnden Geschwindigkeiten einer Bogen verarbeitenden Maschine oder bei wechselnden Bedruckstoffen oder Bedruckstoffqualitäten die Sauglufteinstellung nicht ständig manuell nachjustiert werden muss.
Bei Eingabe einer Bedruckstoffqualität oder einer Bedruckstoffstärke am Leitstand 17 der Bogen verarbeitenden Maschine kann eine dem Bedruckstoff angemessene Sauglufteinstellung vorgewählt werden.
Zusätzlich kann die Verwendung von an den Bedruckstoff hinsichtlich der Saugöffnungen 10 angepassten Saugerplatten 8 für den Seitenziehsauger überwacht und eingestellt werden. Weiterhin kann die Bewegung der Seitenkante der auszurichtenden Bogen mit einer Kamera im Bereich des Seitenanschlags 19 der pneumatischen Seitenmarke aufgenommen und am Leitstand 17 verfügbar gemacht werden. So wird die Überwachung der Seitenausrichtung deutlich verbessert.The values determined by the
Both the position of the side edge of the sheet relative to the
The negative pressure can thus be adjusted in such a way that neither insufficient suction nor excessive suction can be avoided. The advantage here is that the sheet travel is automatically adjusted during the page alignment so that the suction air setting does not have to be constantly readjusted manually when the speeds of a sheet processing machine change or when the printing material or the printing material quality changes.
When entering a printing material quality or a printing material thickness at the
In addition, the use of
Anstatt eines Seitenanschlages kann die Seitenzieheinrichtung auch einen Sensor zur Erfassung der Ausrichtlage der Seitenkante des auszurichtenden Bogens aufweisen. Dann werden die weiteren Sensoren zur Vorsteuerung der Bogenausrichtung verwendet.Instead of a side stop, the side pulling device can also have a sensor for detecting the alignment position of the side edge of the sheet to be aligned. The other sensors are then used to pre-control the sheet alignment.
Erfindungsgemäß enthält nun eine Seitenmarkenanordnung nach in
Das Ejektorelement 13.2 ist über eine Saugleitung 13.3 mit der Saugerplatte 8 und über eine Blasluftleitung 13.4 mit der Überdruckquelle 13.1 verbunden. Die Blasluft zur Erzeugung der Saugluft an der Saugerplatte 8 wird am Ejektorelement 13.2 direkt wieder abgeblasen.
Bei der Verwendung von Ejektorelementen 13.2 wird durch die Steuereinheit 16 ein zwischen dem Überdruckerzeuger 13.1 und dem Ejektorelement 13.2 angeordnetes erstes Ventil 12 während jedes Arbeitstaktes geöffnet und geschlossen, wobei der Einlass des Ejektorelements 13.2 durch die Blasluftleitung 13.4 mit einem Überdruckluftstrom beaufschlagt wird und dieser durch das Ejektorelement 13.2 zu einem zur Atmosphäre führen Auslass strömt. Dabei ist zwischen dem Einlass und dem Auslass des Ejektorelements 13.2 über eine Saugleitung 13.3 ein Unterdruckverbraucher, hier die Saugplatte 8. oder ein Teilsaugbereich davon, angekoppelt. Da die Bogen verarbeitende Maschine ist mit unterschiedlichen Arbeitstakten pro Zeiteinheit betreibbar ist sind in einem Speicher entsprechend mehrere unterschiedliche Öffnungszeitpunkte und jeweils dazugehörende Schließzeitpunkte des ersten Ventil 12 abhängig von entsprechend mehreren unterschiedlichen Anzahlen von Arbeitstakten pro Zeiteinheit gespeichert. Die Steuereinheit 16 öffnet das erste Ventil 12 entsprechend abhängig von dem jeweiligen Arbeitstakt pro Zeiteinheit am zugehörigen Öffnungszeitpunkt und schließt es am zugehörigen Schließzeitpunkt. Damit wird die pro Arbeitstakt erforderliche Saugluftmenge für die Saugerplatte 8 oder einen Teilsaugbereich davon erzeugt. Dies erfolgt in Abhängigkeit von der Einstellung des Regelventils 20, mit dessen Hilfe die Blasluftzufuhr zum Ejektorelement 13.2 gesteuert wird, so dass je nach Betriebsbedingungen und Materialeigenschaften der zu verarbeitenden Bogen die Saugluft an aktuelle Erfordernisse angepasst werden kann.According to the invention, a page mark arrangement according to FIG
The ejector element 13.2 is connected to the
When ejector elements 13.2 are used, the
Zur Luftsteuerung der Seitenmarke als Saugluftverbraucher sind zur Lufterzeugung ein oder auch mehrere Ejektorelemente 13.2 eingesetzt. Diese sind mit einem Überdruckerzeuger 13.1 gekoppelt und werden mit dem/den Arbeitsorganen der Seitenmarke über wenigstens eine Saugleitung 13.3 verbunden. Dem Überdruckerzeuger 13.1 der Ejektorelemente 13.2 ist wenigstens ein Magnetventil, wie dem 2/2-Wegeventil 12, zugeordnet, das zur zeitlich gesteuerten Druckluftversorgung des/der Ejektorelemente 13.2 über die Blasluftleitung 13.4 ausgebildet ist. Die Verwendung mehrerer Ejektorelemente 13.2 kommt vorzugsweise bei beidseitig an dem Anlegetisch 1 angeordneten Seitenmarken in Frage.
Das Ejektorelement 13.2 mit einem oder auch mit mehreren Arbeitsorganen verbunden. Als Arbeitsorgan dient hier die Saugplatte 8 der Seitenmarke. Die Saugplatte 8 kann hierbei auch mit mehreren separat mit Saugluft zu versorgenden Bereichen versehen sein, die dann mit einer jeweils mit einem eigenständig angesteuerten Ejektorelement 13.2 über eine Saugleitung 13.3 verbunden sind.For air control of the side mark as a suction air consumer, one or more ejector elements 13.2 are used to generate air. These are coupled to an overpressure generator 13.1 and are connected to the working element (s) of the side mark via at least one suction line 13.3. The overpressure generator 13.1 of the ejector elements 13.2 is assigned at least one solenoid valve, such as the 2/2-
The ejector element 13.2 is connected to one or more working organs. The
Für weitere Funktionen kann eine Einrichtung zur Belüftung der Saugerplatte 8 im Bereich zwischen einem Ejektorelement 13.2 und der Saugerplatte 8 an die jeweilige Saugleitung 13.3 angeschlossen sein. wobei die Saugerplatte über die Saugleitung 13.3 weiterhin mit dem Luftanschluss des Ejektorelements 13.2, der für die Zuführung von Saugluft vorgesehen ist. Dann erfolgt eine Luftzuführung in die Saugleitung 13.3 so, dass in einem bestimmten Arbeitstakt die Saugluft unterbrochen und der bestehende Unterdruck mit Blasluft kurzzeitig abgebaut wird.For further functions, a device for ventilating the
Die Auftragsdaten bezüglich eine bogenförmigen Bedruckstoffes weist folgende zu berücksichtigende Parameter auf: Bedruckstoff- bzw. Bogenformat, Bedruckstoffstärke, Bedruckstoff- bzw. Papierklasse, Bedruckstoffmaterial, Formeigenschaften und TransporteigenschaftenThe order data relating to a sheet-like printing material has the following parameters to be taken into account: printing material or sheet format, printing material thickness, printing material or paper class, printing material, shape properties and transport properties
Wenn diese Parameter bekannt sind, können diese in einem Leitstand der Bogendruckmaschine als Grunddaten hinterlegt werden. Damit werden verschiedene umfangreiche Einstellmöglichkeiten an der Bogendruckmaschine ermöglicht.If these parameters are known, they can be stored as basic data in a control center of the sheet-fed printing press. This enables various extensive setting options on the sheet-fed printing machine.
Als vielfältige Vorteile ergeben sich aus den Merkmalen der Erfindung Einstellmöglichkeiten für den Betrieb der Seitenmarkeneinrichtung.
- a. Die Seitenmarke wird auf Grund dieser Daten automatisiert eingestellt und mit einer entsprechend Saugluftsteuerung betrieben.
- b. Es werden Kennlinien zur Ansteuerung hinterlegt, die z.B. für eine Geschwindigkeitskompensation bzgl. des Transportverhaltens für die verschiedenen Bedruckstoffsorten bestimmt sind.
- c. Damit sind für Wiederholaufträge die genau abgespeicherten Einstelldaten wieder aufrufbar. So kann ein Auftrag mit ähnlichen oder gleichen Parametern für die Seitenmarkeneinstellung direkt wieder eingestellt werden.
- d. Durch die standardisierte Luftversorgung für die Ejektor-Elemente ist eine gut konditionierte Verbrauchsluft verfügbar
- e. In kritischen Fällen kann ionisierte Luft zur Behandlung von Elektrostatik am Bedruckstoff direkt eingesetzt werden.
- f. Es gibt vielfältige Kompensationsmöglichkeiten, die in Form einer aktiven Kompensationssteuerung direkt in den laufenden Betrieb der Seitenmarke einfließen können.
- g. Auf Grund einer sensorischen Erfassung der zur seitlichen Ausrichtung ankommenden Bedruckstoffbogen kann eine Vorsteuerung der Seitenmarke erfolgen, indem kompensierende Maßnahmen vorbereitet und eingeleitet werden; dies erfolgt durch Vorsteuerung der Positionierung oder Vorsteuerung eines gezielten Luftvolumens oder Luftdrucks o. ä. Maßnahmen.
- h. In der Hochlauf- oder Abbremsphase der Bogendruckmaschine kann die Bogenausrichtung mittels Vorsteuerung, Offsetpunkten oder spezifischen Kennlinien an den aktuellen Bedarf angepasst werden.
- a. The side mark is automatically set on the basis of this data and operated with a corresponding suction air control.
- b. Characteristic curves for control are stored, which are intended, for example, for speed compensation with regard to the transport behavior for the various types of printing material.
- c. This means that the precisely saved setting data can be called up again for repeat jobs. A job with similar or the same parameters for the page mark setting can be set again directly.
- d. Thanks to the standardized air supply for the ejector elements, well-conditioned consumption air is available
- e. In critical cases, ionized air can be used directly to treat electrostatics on the substrate.
- f. There are many compensation options that can be incorporated directly into the ongoing operation of the page mark in the form of an active compensation control.
- G. On the basis of a sensory detection of the sheets of printing material arriving for lateral alignment, the side mark can be precontrolled by preparing and initiating compensatory measures; this is done by pre-controlling the positioning or pre-controlling a specific air volume or air pressure or similar measures.
- H. In the run-up or deceleration phase of the sheet-fed printing press, the sheet alignment can be adapted to current requirements by means of precontrol, offset points or specific characteristics.
- 11
- AnlegetischFeed table
- 22
- BogenförderrichtungSheet conveying direction
- 33
- AnlageblechContact plate
- 44th
- TrägerplatteCarrier plate
- 55
- ScherengitterConcertina gate
- 66th
- Antriebdrive
- 77th
- FührungsausnehmungGuide recess
- 88th
- SaugerplatteSuction plate
- 99
- ZiehwegPull way
- 1010
- SaugöffnungenSuction openings
- 1111
- ServomotorServo motor
- 1212th
- 2/2-Wegeventil2/2 way valve
- 1313th
- UnterdruckpumpeVacuum pump
- 1414th
- KompensationswegCompensation path
- 1515th
- Sensorsensor
- 1616
- SteuereinheitControl unit
- 1717th
- LeitstandControl room
- 1818th
- VordermarkenFront lays
- 1919th
- SeitenanschlagSide stop
- 2020th
- RegelventilControl valve
- 13.113.1
- ÜberdruckpumpeOverpressure pump
- 13.213.2
- EjektorelementEjector element
- 13.313.3
- SaugleitungSuction line
- 13.413.4
- BlasluftleitungBlown air line
Claims (12)
- A method for laterally aligning sheets, which are conveyed in a conveying direction (2) to a sheet-processing machine, in the case of which the sheets to be processed are detected by means of a lateral pulling element, which can be driven in time with the incoming sheets by a drive beneath or in a feed table (1) to perform a lateral pulling movement and to which a negative pressure can be applied, in a starting position and are conveyed as far as a lateral alignment position, which is defined by a lateral stop (19) and/or a sensor means, wherein the reaching of the lateral alignment position of the sheet is detected by a sensor (15), and a corresponding lateral position signal is generated,
characterized in
that signals relating to the position of a sheet to be aligned are detected and are processed for the changing setting of the intensity of the temporal course of the negative pressure conveyed to the lateral pulling element, and are conveyed to a control means in such a way that a blowing air pressure and/or a temporal pace of a blowing air supply at an ejector element (13.2) is adapted for supplying the lateral pulling element with suction air. - The method according to claim 1,
characterized in
that the sheet position is detected by means of sensors (15), that the signals of the sensor/sensors (15) are processed for the changing setting of the intensity of the negative pressure conveyed to the lateral pulling element, and are conveyed to a control valve (20) arranged upstream of the lateral pulling element in such a way that a blowing air pressure and/or a pace of a blowing air supply at an ejector element (13.2) is adapted by the control valve (20) for supplying the lateral pulling element with suction air. - The method according to claim 1 or 2,
characterized in
that a blowing air pressure is adapted by the control valve (20), and a pace of a blowing air supply at an ejector element (13.2) is adapted by a solenoid valve (12) for supplying the lateral pulling element with suction air. - The method according to one or several of claims 1 to 3,
characterized in
that the solenoid valve (12) switches a blowing air supply at a suction line (13.3), which is switched between an ejector element (13.2) and the lateral pulling element, for supplying the lateral pulling element with suction air. - The method according to one or several of the preceding claims,
characterized in
that in addition to the lateral position, the sensor/sensors (15) also detect the position of the sheet perpendicularly above a carrier plate (4) forming the alignment plane and with respect to the sensor/sensors (15), and that the signals of the sensor/sensors (15) are processed for the changing setting of the intensity of the negative pressure conveyed to the lateral pulling element, and are conveyed to a control valve (20) assigned to the lateral pulling element. - The method according to one or several of the preceding claims,
characterized in
that the sensor/sensors (15) convey a lateral position signal and a height position signal to a control unit (16), whereby a control signal is generated in the control unit (16) and is supplied to the control valve (20). - An assembly for carrying out a method according to claim 1 for laterally aligning printed material sheets, which are conveyed in a conveying direction (2) to a sheet-processing machine, comprising a lateral pulling element, which can be driven by means of a drive (11) beneath or in a feed table (1) or in time with the incoming sheets to perform a lateral pulling movement, and to which a suction air can be applied and which detects the sheets in a starting position and conveys them as far as a lateral alignment position, which is defined by an adjustable lateral stop (19) and/or a sensor means, wherein the lateral pulling element is formed as a suction plate (8), to which a negative pressure can be applied and which can be movably driven by the drive (11) in the feed table (1) perpendicularly to the conveying direction (2) of the sheets from a starting position as far as the lateral alignment position,
characterized in
that the suction plate (8) can be controllably connected to a positive pressure source (13.1) by means of an ejector element (13.2) via a control valve (20), and that the control valve (20) is connected to a control unit (16), which is formed to process sheet position signals of one or several sensors (15). - The assembly according to claim 7,
characterized in
that the suction plate (8) can be connected to the positive pressure source (13.1) via a control valve (20) and a solenoid valve (12), wherein the solenoid valve (12) generates a pace or temporal course of the blowing air supply at the ejector element (13.2) for supplying the suction plate (8) with suction air, wherein the solenoid valve (12) is likewise connected to the control unit (16). - The assembly according to claim 8,
characterized in
that the solenoid valve (12) is formed as 2/2 directional valve. - The assembly according to one or several of claims 7 to 9,
characterized in
that the suction plate (8) can be connected to the positive pressure source (13.1) by means of the control valve (20) and by means of the solenoid valve (12), and the control valve (20) and the solenoid valve (12) is connected to a control unit (16),
wherein the control unit (16) is formed to process sheet position signals of one or several sensors (15), wherein the sensor/sensors (15) are formed to detect the position of the lateral edge of the sheets at the lateral stop (19) and/or the position of the sheet perpendicularly to the conveying plane of the sheets on the feed table (1). - The assembly according to one or several of claims 7 to 10,
characterized in
that the sensor/sensors (15) can be continuously set together with the lateral stop (19) to different lateral alignment positions, wherein the sensor/sensors (15) and the lateral stop (19) is arranged at a carrier plate (4), the surface of which extends in the plane of the feed table (1) and which can be adjusted by a motor drive (6) transversely to the conveying direction (2), controlled by a control unit (16). - The assembly according to one or several of claims 7 to 11,
characterized in
that, for the controlled blowing air supply, the blowing air supply is connected via the solenoid valve (12) to a suction line (13.3), which is switched between an ejector element (13.2) and the suction plate (8) and which serves to supply the suction plate (8) with suction air.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016114989 | 2016-08-12 | ||
DE102017117790.6A DE102017117790A1 (en) | 2016-08-12 | 2017-08-04 | Lateral arch orientation |
PCT/EP2017/069875 WO2018029118A1 (en) | 2016-08-12 | 2017-08-05 | Lateral sheet alignment |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3497045A1 EP3497045A1 (en) | 2019-06-19 |
EP3497045B1 true EP3497045B1 (en) | 2021-05-26 |
Family
ID=61018100
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17751075.7A Active EP3497045B1 (en) | 2016-08-12 | 2017-08-05 | Lateral sheet alignment |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP3497045B1 (en) |
JP (1) | JP2019531919A (en) |
CN (1) | CN109661364A (en) |
DE (1) | DE102017117790A1 (en) |
WO (1) | WO2018029118A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7458624B2 (en) * | 2019-11-07 | 2024-04-01 | ホリゾン・インターナショナル株式会社 | Paper stack alignment device |
DE102019133574B4 (en) * | 2019-12-09 | 2023-03-16 | manroland sheetfed GmbH | Suction chamber arrangement for lateral sheet registration |
DE102019133570B4 (en) * | 2019-12-09 | 2023-03-16 | manroland sheetfed GmbH | Lateral Arch Alignment |
DE102019133573B4 (en) * | 2019-12-09 | 2023-01-12 | manroland sheetfed GmbH | Lateral sheet alignment with suction cleaning |
CN113002189A (en) * | 2019-12-19 | 2021-06-22 | 广东丽格科技股份有限公司 | Printer paper adjusting device |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4725413Y1 (en) * | 1968-06-08 | 1972-08-08 | ||
DE19901341B4 (en) * | 1999-01-15 | 2005-07-21 | Man Roland Druckmaschinen Ag | Air control and / or air control device |
DE10116980A1 (en) * | 2000-05-02 | 2001-11-08 | Heidelberger Druckmasch Ag | Sheet alignment device for printers fixes sheet on positioning table which is movable by position drive in and/or across sheet running direction and or can be swivelled about orthogonal axis |
US20050200069A1 (en) * | 2004-03-12 | 2005-09-15 | G 01.Com Srl | Apparatus including a sucker with autoselection function for handling material |
CN100572233C (en) * | 2005-02-01 | 2009-12-23 | 海德堡印刷机械股份公司 | Be used for handling generation air blowing of machine beat ground or the air-breathing device that page or leaf is opened |
DE102009027389B4 (en) | 2008-07-31 | 2019-04-04 | manroland sheetfed GmbH | Arrangement for the lateral alignment of sheets |
JP5243293B2 (en) * | 2009-02-16 | 2013-07-24 | 芳野マシナリー株式会社 | Ejector paper feeder for bookbinding machine and bookbinding system using ejector paper feeder |
EP2441714B1 (en) * | 2010-10-15 | 2013-12-11 | Protion GmbH | Lifting sucker for a sheet processing machine, sheet processing machine |
DE102010064064B4 (en) | 2010-12-23 | 2023-03-09 | manroland sheetfed GmbH | Sheet Alignment Procedure |
DE102012103772A1 (en) * | 2012-04-27 | 2013-10-31 | Hans-Jürgen Kasprich | Means for supplying a negative pressure consumer of a sheet-processing machine in a working cycle of the sheet-processing machine with negative pressure |
JP2014214001A (en) * | 2013-04-26 | 2014-11-17 | リョービMhiグラフィックテクノロジー株式会社 | Printer |
JP6332808B2 (en) * | 2014-12-08 | 2018-05-30 | 株式会社エイチアンドエフ | Work transfer device and work transfer method using the same |
-
2017
- 2017-08-04 DE DE102017117790.6A patent/DE102017117790A1/en not_active Ceased
- 2017-08-05 EP EP17751075.7A patent/EP3497045B1/en active Active
- 2017-08-05 CN CN201780049431.9A patent/CN109661364A/en active Pending
- 2017-08-05 JP JP2019507087A patent/JP2019531919A/en active Pending
- 2017-08-05 WO PCT/EP2017/069875 patent/WO2018029118A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
EP3497045A1 (en) | 2019-06-19 |
DE102017117790A1 (en) | 2018-02-15 |
CN109661364A (en) | 2019-04-19 |
JP2019531919A (en) | 2019-11-07 |
WO2018029118A1 (en) | 2018-02-15 |
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