EP3439885A1 - Verfahren zum kontrollieren der breite eines zwischen rotationskörpern eines druckwerks ausgebildeten pressstreifens - Google Patents
Verfahren zum kontrollieren der breite eines zwischen rotationskörpern eines druckwerks ausgebildeten pressstreifensInfo
- Publication number
- EP3439885A1 EP3439885A1 EP17749693.2A EP17749693A EP3439885A1 EP 3439885 A1 EP3439885 A1 EP 3439885A1 EP 17749693 A EP17749693 A EP 17749693A EP 3439885 A1 EP3439885 A1 EP 3439885A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- printing
- strip
- cylinder
- sheet
- rotary
- 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
- 238000007639 printing Methods 0.000 title claims abstract description 309
- 238000000034 method Methods 0.000 title claims abstract description 57
- 239000000758 substrate Substances 0.000 claims abstract description 34
- 230000005693 optoelectronics Effects 0.000 claims abstract description 21
- 238000007689 inspection Methods 0.000 claims abstract description 19
- 238000001514 detection method Methods 0.000 claims abstract description 11
- 238000012546 transfer Methods 0.000 claims description 53
- 238000003825 pressing Methods 0.000 claims description 29
- 238000012545 processing Methods 0.000 claims description 15
- 238000011156 evaluation Methods 0.000 claims description 11
- 230000008859 change Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 5
- 238000012549 training Methods 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 description 15
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- 238000001035 drying Methods 0.000 description 13
- 241000196324 Embryophyta Species 0.000 description 10
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- 238000013461 design Methods 0.000 description 4
- 238000005286 illumination Methods 0.000 description 4
- 238000007645 offset printing Methods 0.000 description 4
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- 238000007774 anilox coating Methods 0.000 description 3
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
- B41F33/04—Tripping devices or stop-motions
- B41F33/14—Automatic control of tripping devices by feelers, photoelectric devices, pneumatic devices, or other detectors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
- B41F33/0036—Devices for scanning or checking the printed matter for quality control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
- B41F33/0072—Devices for measuring the pressure between cylinders or bearer rings
Definitions
- the invention relates to a method for controlling at least one press strip with respect to its respective strip width according to claim 1.
- Cylinder is colored, in which at standstill of the printing press on a second
- Cylinder a contact strip is generated by the first cylinder on the stationary second cylinder on and off again, in which the contact strip
- an impression of the contact strip is produced on a substrate from each other, and the width of the contact strip is measured on the substrate by optoelectronic scanning.
- DE 102 1 1 870 A1 discloses a printing press with a measuring device for
- Measurement of a strip in particular a color strip of a roller to be adjusted known, wherein the measuring device with the aid of an electro-optically operating device measures the strip, wherein the measuring device is provided in particular with a CCD line or a laser line.
- Printing unit with an inking unit, a color box, color dosing, a
- Control devices settings of operating conditions or movements of dyeing and / or dampening rollers and / or a plate cylinder and / or a rubber / blanket cylinder is variable depending on the detection of quality measurements on a sheet and / or measurements of dimensions or force effects on machine elements.
- Pressing bar image measurement is carried out on a substrate, wherein an image of a first press strip, which is formed by a first rotary body together with a second rotary body, and an image of a second press strip, which is formed by the second rotary body together with a third rotary body, are measured , wherein in a preferred embodiment by an electronic control device in response to measurement signals of a
- Measuring device for measuring the widths of the images of the two pressing strips, a first servo motor and a second servo motor are driven to adjust the pressing strips.
- a method for operating a printing press is known, namely for checking and optionally setting a contact zone between a forme cylinder of a printing unit and at least one on the Form cylinder in the printing operation rolling Aufragwalze, namely at least one inking roller and / or dampening roller, with at least the following, preferably automated running steps: a) first, a printing unit with a
- Transfer cylinder rolling counter-pressure cylinder formed pressure gap or by a formed between the forme cylinder and a rolling on the forme cylinder counter-pressure cylinder pressure gap is moved through; d) Subsequently, the or each contact strip printed on the printing material is measured, whereby measured values determined in this case deliver actual values over the or each contact zone to be measured.
- the invention has for its object to provide a method for controlling at least one press strip with respect to its respective strip width.
- Fig. 2 sheet feeder and sheet system
- Fig. 3 sub-module of a printing unit
- Fig. 8 printing plate detection system.
- Sheet processing machine comprises a substrate feeder 01, for example sheet feeder 01, an abutment 03, referred to as a sheet feeder 03, for example, and a substrate feeder 08 designated as a sheet feeder 08.
- a plurality of processing stages also referred to as works, are preferably arranged as a printing unit 05; 06, but also as a coating unit 07, drying plant, calendering or film transfer plant or are designed in another suitable manner.
- a printing unit 05; 06 but also as a coating unit 07, drying plant, calendering or film transfer plant or are designed in another suitable manner.
- Sheet processing machine as a printing press are preferably more of the works each by a printing unit 05; 06, in particular offset printing unit 05; 06 formed, preferably one or more coating units 07 are arranged downstream.
- multiple printing units 05; 06 can also be the arrangement of a or more coating units 07 between the printing units 05; 06 be provided.
- sheet-shaped substrate B in particular a printing material B, especially sheet “B”
- sheet B should be understood to mean in principle any substrate B which is present in sections and in sections, ie also board or plate-like substrates B, ie also sheets or boards .
- Plates includes.
- the arcuate substrate B or the sheet B thus defined is preferably made of paper or cardboard, d. H. formed as a paper or cardboard sheet, but may in principle be formed by sheet B, sheets or possibly plates made of plastic, cardboard, glass or metal.
- Such as B. seen in Figure 2, is designed as a sheet feeder 01
- Substrate feed device 01 shown with a trained example as a belt table 02 conveyor section 02 and a formed by, for example, a sheet stack 09 Tray 09, which is arranged on a receiving device 10, for. B. a stacking plate 10 is placed.
- the stacking plate 10 is connected to transport means 1 1, which ensure that the top of the sheet stack 09 is held in a defined position.
- the preferably designed as a sheet feeder 01 substrate feed means 01 preferably comprises Bogenippozelungsorgane 12 and sheet transport members 13.
- the Bogenippozelungsorgane 12 are, for example, as a vacuum cleaner 12 and the
- Sheet transport members 13, for example, designed as a transport suction 13 and are preferably together by a separator 14 includes, for. B. recorded in a so-called sheet separator 14.
- the drive of the sheet separator 14 is designed so that the suction pads 12 a predominantly vertical movement and the Transport suction 13 perform a predominantly horizontal movement in or against the sheet transport direction 15.
- Sheet transport members 13 are assigned to the drive, in particular for the drive independently of the drive (preferably all) other work organs or groups of work organs, in particular without a mechanical and / or positive drive connection to drives other, individually or also driven in one or more groups To be coupled to working bodies.
- Sheet B of the sheet stack 09 are positioned on stop elements 16, in particular with the sheet leading edge against stop surfaces of front stops 16.
- a bow flap 17 may form an approximately vertical continuation of the abutment surfaces of the front stops 16 in the upper region of the sheet pile 09.
- the bow flap 17 is, for example via a flap shaft 18, with which it is rotatably connected, in drive connection with a drive, preferably a single drive.
- Sheet flap 17 can thus be pivoted out of a rectilinear continuation of the abutment surfaces forming position and so spent in a guide the sheet B to the downstream belt table 02 supporting position.
- blowing devices for. B. so-called winders for pre-loosening of lying in the upper region of the sheet stack 09 sheet B and for forming a sheet B during conveyance in the sheet transport direction 15 supporting air cushion positioned.
- further blowing devices or fans and / or baffles may also be provided laterally of the sheet stack 09.
- this non-stop device has an auxiliary stack carrier which can be inserted into the stacking area of the printing press and is arranged on a slide-in unit, which is designed in particular as a rake, roller blind or plate.
- the auxiliary pile carrier takes over the rest stack resting on a transport support 76, in particular a pallet 76, and preferably lifts it continuously in order to ensure trouble-free singling and removal of the respectively uppermost sheet B of the rest of the stack.
- the new stack arranged on a further pallet 76 is retracted and subsequently the remaining stack is combined with the new stack.
- the bow stack 09 downstream belt table 02 is formed in the embodiment as Saugb ortisch 02. It preferably comprises two rollers 20; 21, for example, a drive roller 20 and a guide roller 21, between which a z. B. one or more parts conveying surface 22; 23 may be provided, which
- suction box 23 For example, by a single or multi-piece table plate 22 or by a table sheet 22 forming suction box 23 is formed.
- the drive roller 20 and the guide roller 21 are looped around by at least one conveyor belt 24, which is formed as a suction belt 24 at the suction belt table 02.
- the tape is z.
- tensioned by means of a tension roller 77 and preferably by an example on the
- Drive roller 20 attacking single belt drive within a power stroke following a speed profile driven.
- the drive roller 20 here correspond clocking rollers 25 which are controlled within a power stroke against the drive roller 20.
- the investment device 03 which is designated, for example, as a sheet-fed system 03, preferably comprises a feed-in table 26 to which a control device is assigned.
- the feed table 26 may be designed as an Anlegblech 26.
- At the feed table 26 and thus in the path of the sheet B are in the power stroke z. B. designated as so-called front-end marks 27 27, in particular front stops 27 out.
- front marks 27 At this Front mark 27, the sheet B are created and aligned with its leading edge.
- the front marks 27 is followed by an arc acceleration means 04, which is designed in particular as a vibrating gripper 04, which is aligned to the leading edge and optionally after a side edge bow B as a
- Anfetrommel 29 feeds trained transfer drum 29, which from the
- Conveyor 02 forth coming bow B passes to a printing cylinder 34 of the subsequent printing unit 05.
- the sheet B is then transferred in its movement to the vibrating gripper 04.
- the vibrating gripper 04. Preferably during the movement of the
- Oscillating gripper 04 is then the sheet B spent in its correct position and aligned with the feed drum 29 passed.
- FIGS. 3 to 5 the construction of a substructure module 31 is shown
- Substructure 31 of the works here printing units 05; 06 to recognize. From the printing units 05; 06 are only the impression cylinder 34; 36 and the one transferring a print image
- Transfer cylinder 33 drawn with the also designated as the impression cylinder 34 pressure cylinders 34; 36 also designated as pressure points 55 or pressure nip 55 pressure zones 55 form.
- the transfer cylinders 33 are also referred to as rubber cylinder 33 or blanket cylinder 33.
- the impression cylinder 34; 36 have a cylindrical surface except for at least one axially extending cylinder channel 56 through cylindrical surface.
- a gripper system 57 is preferably arranged to take over and transfer the sheet B in the gripper closure.
- Double-sized impression cylinders 33 therefore have two gripper systems 57 arranged in each case in a cylinder channel 56.
- Between the pressure cylinders 34; 36 is usually designed as a transfer drum 35 transfer drum 35 with concentric to the axis of rotation arranged and curved sheet support members 58, z. B. so-called
- Drum caps 58 arranged.
- the transfer drum 35 without Drum caps 58 may be formed as a so-called Transferter 35.
- the transfer drums 35 preferably gripper systems 59 on.
- the sheet B can in particular from one of the
- Transfer drum 35 arranged air cushion guide 60 is supported and so on the
- Drum caps 58 are placed smoothly.
- the transfer drums 35, transfer drums 35 or transferters 35 arranged between the printing cylinders 34 can be made single-size or multiple-size, but are preferably also double-sized.
- Single-size cylinders can accommodate one sheet B and two-size cylinders can accommodate two sheets B circumferentially.
- Each printing unit 05; 06 includes z. B. in the area of a so-called
- Plate cylinder 32 executed printing unit cylinder 32 and in one embodiment for the offset printing process also a particular as a transfer cylinder 33, z. B. as a blanket cylinder 33 running printing cylinder 32. Furthermore, the printing unit 05 includes; 06 z. B. in the area of a so-called printing unit substructure 31 designed as a printing cylinder 34 or impression cylinder 34 printing cylinder 34 and also referred to as a transfer drum 35 transfer drum 35th
- the printing units 05; 06 are such. B. also on the schematically illustrated construction of the printing units 05; Can be seen in Fig. 1, preferably modular, such that the printing unit superstructure 30 by a first module 30, z. B. a so-called
- the upper construction module 30 here includes, for example, the printing form cylinder 32 and in one
- module Design for the offset printing method and the transfer cylinder 33.
- the sub-module 31 has in particular the impression cylinder 34 and z.
- module or module may be understood in this context, a structural unit, which is already introduced with their main components or at least their connection elements in a frame as a whole in the machine and, if necessary, to dismantle again, the frame as one of the rest Machine frame releasable frame is formed.
- Upper module 30 and sub-module 31 preferably between the blanket cylinder 33 and the impression cylinder 34.
- the vertical dividing line between the substructure modules 31 and between the printing units 05; 06 is seen in the sheet transport direction 15 mainly between the transfer drum 35 of the printing unit 05 and the
- z. B. designed as a blanket cylinder 33 transfer cylinder 33 may have at least one fastening device with a fastening means 38 for holding and / or clamping a blanket.
- a designated as clamping and / or clamping channel 37 channel 37, in which the clamping and / or clamping members 38 are arranged, in particular for mounting a blanket may be provided.
- the blanket cylinder 33 is with respect.
- the direction of the effective color flow of z. B. formed as a plate cylinder 32 formed forme cylinder 32, the z. B. also has at least one fastening device with a fastening means 40 for holding and / or clamping at least one printing plate.
- the plate cylinder 32 may have a designated as clamping and / or clamping channel 39 channel 39, in which z. B. at least one clamping and / or clamping device 40 for
- Clamping a pressure plate on the lateral surface of the plate cylinder 32 is located.
- On the lateral surface of the plate cylinder 32 can in the circumferential direction
- the printing unit 05; 06 can in the area of the printing unit superstructure 30 or
- Upper module 30 to be assigned an automatic or semi-automatic plate changing device 41.
- the inking unit 42 may be formed as a short inking unit 42, as a squeegee unit 42, as a film inking unit 42 or in any other suitable manner.
- a lift inking unit 42 includes the
- Inking unit 42 at least one ink supply 43, for example, as a squeegee or
- Ink fountain 43 may be formed, at least one through the ink supply 43 inked, for example, as Duktor- or preferably designed as ink fountain roller 44 ink receiving roller 44, one or more other inking rollers 45 and preferably between the color ink fountain roller 44 formed as a ink fountain roller 44 and a first inking roller 46 oscillating Lifting roller 47, z. B. one
- ink fountain rollers 47 The inking rollers 45 differ in, for example, positively driven Farbreibwalzen 48 (in Fig. 4 hatched drawn) and in
- Inking rollers 49, the z. B. are driven only by friction of the Farbreibwalzen 48.
- the prepared by the inking rollers 45 color to the printing plate are at least one, usually several, in
- Embodiment preferably four inking rollers 50 are provided.
- Ink rollers 50 optionally upstream of at least one dampening roller 52. This is associated with a dampening unit 51, which is intended for applying wet liquid to the surface of the printing plate. Between a direction of rotation 53 of the plate cylinder 32 first inking roller 50 and the nearest dampening roller 52.
- Damping roller 52 a preferably switchable bridge roller 54 may be provided. This is functionally a connection between the dampening unit 51 and inking unit 42 possible. In the case of the switchable design, this allows several operating modes to optimize the supply of wet liquid.
- the sheet-fed press may include a turning device 78 for turning the sheets B to be printed.
- the turning device 78 is preferably between the printing units 05; 06 of the machine, in particular between the printing cylinders 34. This turning device 78 is preferably configured so that it can be converted from the Perfecting in the perfecting, so that the machine operates either in the operating mode Perfecting or in the operating mode perfecting. Under the counterpressure is to be understood that a sheet B after printing by a number of printing units 05; 06 is turned to with the subsequent
- Printing units 05; 06 to print its back.
- the turn is usually carried out according to the principle of trailing edge turning (see eg Fig. 6).
- the turning device 78 can be designed, for example, as a three-drum turn or as a single-drum turn.
- three sheet guiding cylinders 79; 80; 81 arranged in the three-drum turn.
- a single-sized or double-sized transfer drum 79, a preferably double-sized storage drum 80 and a preferably single-sized turning drum 81 are arranged.
- a single-sized cylinder can absorb a sheet B maximum format circumferentially.
- a single-sized cylinder has so referred to the diameter of the z. B. formed as a plate cylinder 32
- Printing forme cylinder 32 the same, a double-sized cylinder on a double-large diameter.
- the turning drum 81 is in particular equipped with a turning gripper system 82 and the storage drum 80 is then equipped with at least one sheet holding system 83 per arch-carrying surface.
- the sheet holding systems 83 are preferably formed as a gripper system 83 for the sheet leading edge.
- too Fixing elements for the rear portion of a sheet B are provided, which are preferably designed as vacuum systems 84.
- the teat systems 84 are preferably connected to adjustable rear shell segments and circumferentially relative to the gripper systems 83 adjustable on front shell segments, so that sheet B of maximum to minimum size in the operating mode Perfecting and / or in the mode perfecting in the front and rear Area can be held on the storage drum 80.
- Below storage drum 80 and / or turning drum 81 sheet guiding elements for guiding the sheet B can be arranged.
- the turning device 78 is associated with a Leitrakel for guiding the sheet B between the storage drum 80 and beater 81.
- the last printing unit 06 is z. B. downstream of a coating unit 07.
- the impression cylinder 61 is preferably the impression cylinders 34; 36 of the
- Printing units 05; 06 identical.
- the area of a z. B. formed as a top module 62 Lackwerkoberbaus 62 of the coating unit 07 differs from the printing unit superstructures 30 and
- Blanket formed on the paint plate or on the paint plate is here preferably designed as a chamber doctor blade 65 application system 65, comprising preferably a cup structure on the lateral surface comprehensive inking roller 66, in particular anilox roller 66, and a chamber doctor blade 67 applied.
- the chamber doctor blade 67 here contains two doctor blades cooperating with the anilox roller 66.
- a drying section is preferably provided downstream of the last printing unit 05; 06 or, if provided, after the coating unit 07. To form the drying section are in Bedruckstoffweg between the last as printing or coating unit 05; 06; 07 trained factory 05; 06; 07 and a z. B. by a delivery stack 71 formed product package 71 one or more drying devices 68.
- one or more drying devices 68 are arranged above and / or below the sheet path in the sheet delivery 08.
- the path between the last paint or printing unit 05; 06; 07 and the sheet delivery 08 in particular through the interposition of a drying plant extendable, so as to gain space for the arrangement of further drying devices 68.
- an intermediate drying in the machine can be assigned by the cylinders
- the sheet delivery 08 a sheet-processing machine, in particular a sheet-fed press, especially a Bogenoffsetrotationsdruckmaschine includes a sheet guiding system, here as a sheet guiding cylinder, especially impression cylinder 34, downstream Bogenfordersystem, which is designed in particular as a chain conveyor system 69.
- the sheet carrier system contains moving traction means via drive and deflection means, which drive gripping devices for sheet conveying.
- the gripping means have fixing organs for taking over and fixing the sheet B.
- clamping and / or suction grippers can be used to grip the sheet edges as fixing organs.
- Gripping devices provided for the sheet trailing edges.
- a sheet guiding device and, for example, a dryer is provided in the sheet delivery 08.
- the sheet guiding device has the gripper carriage 70 facing sheet guide plates, which are provided with Blas Kunststoffdüsen and extend over the machine width. Below the sheet baffle blow boxes are arranged, via which the Blas Kunststoffdüsen be supplied with blowing air, so that between the sheet guide plate and transported by the gripper carriage 70 bow B a supporting air cushion is formed.
- a coolant circuit can be integrated.
- a release agent application device (not shown), in particular a powder device, is preferably provided, combined with a device for sucking off the powder.
- a braking device (not further described) for decelerating the sheet B released by the gripper carriage 70 is arranged.
- the braking device may contain rotating suction rings and / or circulating suction belts or be designed as Nachgreifersystem.
- the delayed by the braking device bow B attach themselves to front stops and are stored aligned on the delivery stack 71.
- the delivery stack 71 is preferably of a
- the sheet delivery 08 may be equipped with a non-stop device, not shown.
- the roller blind has movably connected rods. In its rest position, it is arranged rolled up in front of the delivery stack 71 and is used to change the stack while the sheetfed press is in operation
- Delivery stack 71 takes this batten table temporarily the incoming sheet B, so that forms an auxiliary stack.
- the main pile can now
- the blind is retracted to its rest position and the auxiliary stack thereby deposited on the new pallet 76.
- the sheet-fed press is associated with at least one drive motor, not shown.
- this is at least one drive motor z. B. is designed as a main engine and drives z. B. a closed gear train, which forms a drive network.
- the drive assembly comprises in particular the impression cylinder 34; 36, the transfer drum 35, the rubber cylinder 33, the
- Substrate feed device 01 can preferably be driven by separate drives, in particular individual drives, ie without mechanical and / or positive drive connection to drives of the other functional units and the drive network comprising the main motor or his.
- separate drives in particular individual drives, ie without mechanical and / or positive drive connection to drives of the other functional units and the drive network comprising the main motor or his.
- at least the Plate cylinder 32 outsourced from the drive assembly and by only the respective plate cylinder 32 associated separate drives in particular
- the individual drives of the plate cylinder 32 may be formed in particular by so-called direct drives, wherein the direct drive is an above-mentioned single drive is understood in which the drive motor or its rotor, preferably without intervening transmission elements, directly or optionally via a clutch coaxial with each other in the arrangement Drive shaft, in particular the pin of the plate cylinder 32 is connected.
- the drive motor is preferably designed so that it can be dispensed with the interposition of a transmission.
- the peripheral speed of the plate cylinder 32 is the
- Adjusted peripheral speed of cooperating with the plate cylinders 32 cylinders are adjusted.
- the bow B are in the z. B. provided as a sheet stack 09 trained printing 09.
- the sheet separator 14 the uppermost sheet B of the sheet stack 09 is detected and supplied for further processing. This happens z. As follows:
- the Bogenhuizelungsorgane 12 are guided against the top of the sheet stack 09, detect the top sheet B and lift it from the underlying sheet B, by being moved back to their original position.
- the wind blowers undercut the bow B held by the bow separating members 12 and thus separate it completely from the bow B lying underneath Bogenallezelungsorganen 12 held and full-surface separate sheet B is detected by the sheet transport members 13 and released by the Bogenallezelungsorganen 12.
- the sheet transport members 13 promote the detected sheet B in
- Sheet transport direction 15 wherein at the beginning of the sheet transport, the sheet flap 17 can be pivoted downwards, so that the sheet B with the sheet leading edge to z. B. trained as a belt table 02 conveyor line 02 can be transported.
- the clock rollers 25 are initially lifted from the drive roller 20 and put on the respective sheet B, if this is in the gap between the clock rollers 25 and the drive roller 20. Subsequently, the respective sheet B of the
- Sheet transport members 13 released.
- the funded by the sheet transport members 13 in the sheet transport direction 15 sheets B are in compliance with a predetermined scale distance on the z. B. positioned as a belt table 02 conveyor section 02 and positioned by this or this in the working cycle of
- the gripper z. B. the swing gripper 04 pass the sheet B to the gripper of the feed drum 29, through which the sheet B is transferred to the gripper system 57 of the printing cylinder 34 of the first printing unit 05.
- the now located on the printing cylinder 34 sheet B is through the inking unit 42 on the plate cylinder 32 and in execution as offset printing on the
- the z. B. in color ink 43 formed as ink fountain 43 stockpiled ink is metered in zones on the ink pickup roller 44, z. B. the ink fountain roller 44 and preferably from the periodically moved back and forth ink lifter 47 as a color strip on the z. B. trained as Farbreibwalze 48 first inking roller 46th stored. This transfers the ink via friction driven by inking rollers 49 on the Farbreibwalzen 48. About more inking rollers 45, the ink is transferred to the inking rollers 50 and thereby passes to the at least one spanned on the printing plate cylinder 32 printing form, wherein in the direction of rotation of the
- Printing form cylinder 32 seen before the order of the color by the inking rollers 50 of the order of wet liquid can be done by the dampening roller 52.
- the deposited on the relevant printing plate color is motive on the
- the sheet B is now from the first printing unit 05 on the following printing unit 06 and optionally subsequent other printing units 05; 06 transferred. This happens z. As follows:
- the sheet B is transferred from the gripper system 57 of the printing cylinder 34 to the gripper system 59 of the transfer drum 35 and so on through the entire
- Sheet fed press In the individual printing units 05; 06 is then applied via the respective transfer cylinder 33, the color on the sheet B.
- the lying on the storage drum 80, printed in straight printing sheet B is guided by the sheet holding system 83 in the area of the sheet leading edge and in addition from a designed as a suction pad of Saugersystems 84 sheet holding system 84 in the area the sheet trailing edge fixed.
- the sheet leading edge After the sheet leading edge has passed the tangent point between the storage drum 80 and the subsequent turning drum 81, it is released by the sheet holding system 83. While the sheet trailing edge passes the tangent point between the storage drum 80 and beater 81, it is taken over by the turning gripper system 82 of the turning drum 81 and from
- Sheet holding system 84 of the storage drum 80 is released, so that the sheet trailing edge then becomes the sheet leading edge.
- the printing units 05; 06 After the sheet B, the printing units 05; 06 has happened, it can be provided in one or more coating units 07 by the paint cylinder 63 with a paint layer.
- the gripper system of the printing cylinder 61 then passes the sheet B to z. B. the chain conveyor system 69 of the sheet delivery 08th
- the gripped at the front edge sheet B are of the gripper carriage 70 after the acquisition of the printing cylinder 61 and passing through a deflection z. B. on a track that faces up.
- the sheets B are dried by the intended drying devices 68 and z. B. occupied with powder.
- the sheets B are transported by the gripper carriage 70 up to the height of the delivery stack 71 and stored there on this.
- An in-line inspection system of the sheet processing machine is used to provide a quality e.g. B. multicolored printed and / or painted sheet B in the machine (ie, "inline") to control and display to a machine operator the results of this inspection ( Figure 1) .
- This is done by the in-line inspection system at least one photographic image of each printed image to be inspected
- the in-line inspection system is capable of performing a 100% inspection of the entire print run up to a print speed of machine-dependent up to 20,000 sheets / h, whereby each sheet B is set to several, eg over 12
- the inline inspection system detects with a theoretical color gamut of z. B. about 16.7 million gradations smallest color deviations and / or brightness differences in the printed image.
- the in-line inspection system detects both short-term printing errors (eg ink splashes, water marks, paper defects, slugs, etc.) as well as permanent print deviations (eg over- / undercolouring of individual colors, lack of color, toning, etc.) and indicates detected defects preferably by means of a display device 91, z. B.
- the in-line inspection system makes it possible, for example, to set tolerance limits for the print quality of the sheets B to be inspected. If a tolerance limit is exceeded or undershot, the inline inspection system gives a warning z. B. on the display 91 from. In a preferred embodiment, the in-line inspection system identifies fault locations in the form of z. B. large grid points in the printed image displayed on the monitor, the grid points z. B. appear in colors that do not occur in the print image.
- a arranged in the rotary printing machine inline inspection system thus forms a printed sheet B to several million pixels of the relevant optoelectronic device and detects to control the quality of a arranged on the respective sheet B print image color deviations of and / or brightness differences to a respective predetermined setpoint, wherein a result of this control is displayed to a machine operator.
- the inline inspection system includes at least one in the
- the camera 86 is preferably formed as a semiconductor camera, z. B. as a CCD camera or CMOS camera, z. B. in the form of a
- Line scan camera or a surface camera A z. B. by an optical lens
- the defined detection area 89 of the respective camera 86 is in each case radial
- Lighting device 87 is preferably arranged in the base 31 of the relevant module.
- the illumination device 87 is preferably designed as an LED illumination.
- the illumination device 87 preferably radiates white light in the direction of the printed image to be inspected.
- a printing plate recognition system is provided, which is a fully automatic inline reading system for a printing plate to be arranged on a plate cylinder 32.
- the printing plate recognition system determines by means of a directed to the plate cylinder 32 camera 92, whether a pressure plate in the clamping and / or
- Clamping device 40 is located.
- the printing plate recognition system also controls whether the printing plate is sufficiently deep in the clamping and / or clamping device 40 (FIG. 4). After successful inspection, the relevant pressure plate
- the printing plate recognition system works with z. B. three registration marks 93, of which z. B. two were exposed in the prepress on the printing plate and a z. B. on a pressure plate registering register pin 94 is arranged (Fig. 8).
- the printing plate recognition system checks whether a printing form arranged on the printing form cylinder 32 is correctly held by a clamping and / or clamping device 40 arranged on this printing plate cylinder 32, at least one registration mark 93 on the printing form and another registration mark 93 are arranged in particular stationary on the printing form cylinder 32.
- the printing plate recognition system evaluates this disk encoding 96 and thereby controls whether the printing plate corresponding to the print job in the right printing 05; 06 is located. Subsequently, the printing plate recognition system or an evaluation device 88 connected to it activates printing unit-specific default settings.
- the DataMatrix code is thus an information carrier for order-specific data.
- the disk encoding 96 is z. For example, it can be used to automatically load the entire job including the preset data into the machine's setup memory (color profiles, duct speeds, area coverage, header data). This z. B.
- the printing plate recognition system gives z. B. an error message when the job is not found in the plate recognition system or a DataMatrix code z. B. is unreadable due to damage or missing.
- Ink rollers 50 and / or at least one employed dampening roller 52 and between at least one of the inking rollers 50 and a Farbreibwalze 48 or between the first in the direction of rotation of the printing form cylinder 32 inking roller 50 and arranged between this first inking roller 50 and the nearest dampening roller 52 bridge roller 54 are formed by the respective opposing position of two of these rotational bodies in each case one in each case in the longitudinal direction of this body rotation extending contact strip or pressing strips.
- the respective each extending in the circumferential direction of the respective rotational body strip width of at least one, usually more of these contact strips or pressing strips preferably at least approximately simultaneously to control and at Readjustment of correction needs.
- Pressing strips are in the printed image of the relevant on the lateral surface of the Printing form cylinder 32 unwound inking roller 50 controllable.
- a method for controlling a strip width of a press strip assumes that the press strip of two mutually employed in a printing unit 05; 06 a rotary printing machine arranged rotating bodies is formed. One of the two rotating bodies against each other leads on his
- Rotational body forms a color strip in the region of the pressing strip on the lateral surface of the rotational body employed against it.
- an image of the color stripe is created with the optoelectronic device, wherein a color stripe formed on the plate cylinder 32 is advantageously photographed by an optoelectronic device designed as a camera 92 of a printing plate recognition system.
- an optoelectronic device designed as a camera 92 of a printing plate recognition system.
- a color strip formed on a substrate B by the transfer cylinder 33 can be photographically imaged by an optoelectronic device formed as a camera 86 of an in-line inspection system.
- each additional function is added to it allows each to control the strip width of at least one pressing strip.
- This multiple use of at least one of the arranged in a rotary printing machine optoelectronic devices is extremely economical and therefore advantageous.
- This multiple use of at least one existing optoelectronic device which is made possible by an extension of the respective functional scope, makes it unnecessary to provide additional installation space in the rotary printing press for an otherwise further device to be installed.
- the preferably digital image data of the respective photographic image of the respective color stripe are respectively from the respective camera 86; 92 transmitted to the evaluation device 88 and computing device 88, wherein the
- Calculating device 88 from these image data of the photographic image of the respective color strip each information about the strip width of the respective formed between the two mutually employed rotating bodies press strip determined, preferably a value for the strip width in question calculated.
- the computing device 88 may also specify the information about the strip width of the respective press strip determined by it as a rank in a multi-ranked rating system, e.g. B.
- the computing device 88 outputs the determined information about the strip width of the respective press strip at one with the
- Computing device 88 data-technically connected or at least connectable
- Display device 91 off, z. As the rank or as a numerical value, whereby the determined or calculated information on the strip width is visualized. As a display device 91 is preferably a monitor of the
- the computing device 88 checks z. B., whether the information obtained on the strip width of the respective
- Press strip taking into account at least one previously set limit corresponds to a given for the respective pressure strip setpoint or is within a predetermined setpoint range.
- the display device 91 preferably indicates whether the determined information on the strip width of the respective press strip is below or above the at least one previously set limit value.
- the control of the strip width of the respective press strip takes place in that at least one by the inking unit 42 with ink especially uniformly and completely colored inking roller 50 to a colorless, preferably stationary printing cylinder 32 employed and after a contact time of a few seconds, z. B. after a contact time of up to 15 seconds, in particular 10 seconds of this printing forme cylinder 32 is turned off again. Thereafter, the at least one of the printing form cylinder 32 carried color strip with parked inking roller 50 and parked inking rollers 50 from
- Rotary body employed third rotational body on a substrate B transmitted color strip is photographed in each case by a directed to this substrate B as a camera 86 of an inline inspection system formed optoelectronic device.
- Ink roller 50 used.
- at least one each formed as an inking roller 50 first rotary body z. B. at least one each used as a dampening roller 52 first rotary body each used for employment on the same second rotary body.
- a plurality of first rotary bodies are employed on the same second rotary body.
- a printing forme cylinder 32 carrying at least one printing plate is preferably used in each case.
- a colorless printing forme before the employment of the at least one first rotating body is used, in particular a new unused printing forme.
- This printing form is advantageously before controlling the at least one press strip with respect to its respective strip width by means of a fully automatic or at least
- the semi-automatic plate changing device 41 the printing form cylinder 32nd fed.
- a transfer cylinder 33 of the printing couple 05; 06 used as the third rotational body employed against the second rotational body.
- the relevant printing form is printed or washed clean on the respective printing form cylinder 32 or a respective blanket on the respective transfer cylinder 33 each clean.
- On the outer surface of the respective first rotation body applied ink is before the employment of the respective first rotation body against the second rotation body of a Farbreibwalze 48 z. B. triturated.
- the respective second rotational bodies are respectively positioned in their respective rotational angle position such that the respective first rotational bodies are in each case set at different distances to the respective second rotational body with respect to a printing start intended with respect to the printing substrate B and / or an intended printing end.
- the method described is in particular following a printing plate change in the relevant printing units 05; 06 executed.
- the respective printing forme cylinder 32 and plate cylinder 32 are positioned in their respective rotational position such that the resulting from these pressure strips on the substrate B color stripes do not overlap. This takes place in that the respective inking rollers 50 are employed at different intervals relative to the respective printing forme cylinder 32 or plate cylinder 32 with respect to the print start intended with regard to the printing substrate B and / or an intended printing end.
- the one or more of the printing plate cylinder 32 and plate cylinder 32 and optionally transfer cylinder 33 previously each clean to print and / or wash.
- the printing forme on the respective plate cylinder 32 and / or the blanket to be renewed on the respective transfer cylinder 33.
- a method of controlling a plurality of pressing strips with respect to their respective strip widths assumes that each of the pressing strips is of two
- Rotary printing machine in each case two rotating bodies are employed against each other.
- printing units 05; 06 are one of the employees against each other
- Rotating body as a printing form cylinder 32 carrying at least one printing plate and the other rotating body as an inking roller 46; 50 of an inking unit 42 is formed.
- the at least two printing units 05; 06 will be the respective ones
- Printing form cylinder 32 are each rotated in such a rotational angle position that at least their respective first inking roller 46 in each case different from each other Distance to an intended pressure beginning of at least one of these
- Printing units 05; 06 are together to be printed sheet B.
- the at least each first inking roller 46; 50 of the respective inking unit 42 is in each case employed at standstill of the rotary printing press to the respective printing form cylinder 32 such that in the at least two printing units 05; 06 on the respective at least one previously colorless arranged on the respective printing form cylinder 32 printing forme by hiring the at least each first inking unit roller 46; 50 of each
- Inking unit 42 each a color strip is formed. After a defined exposure time of a few seconds, z. After a contact time of up to 15 seconds,
- the rotary printing press is placed in its operating state of the production printing, wherein a defined number of sheets to be printed B, z. B. three sheets B, the printing plates with the color strips having printing units 05; 06 are supplied.
- the formed on the respective otherwise colorless printing forms color strips are in the parked operating state of the respective at least one inking unit roller 46; 50 on the these printing units 05; 06 transferred sheet B transferred.
- the operating state of the continuous printing of the rotary printing machine is terminated as soon as these are each printed with the color strip printed sheet B in a sheet delivery 08 of the rotary printing press.
- the respective color strips printed on each of the sheets B become the respective printing units 05; Assigned to 06, wherein the execution of the control of the pressing strips, the respective strip width of these color strips is determined.
- the plurality of pressing strips can be controlled at least approximately simultaneously with respect to their respective strip width in the same production printing of the rotary printing press.
- This method is especially following a z. B. using a plate changing device 41 preferably automated executed printing plate change in the relevant
- Printing units 05; 06 executed.
- the at least one inking unit roller 46; 50 is in the relevant printing units 05; 06 if necessary, in each case also a dampening roller 52 of a
- Printing plate cylinder 32 cooperates with a color-free transfer cylinder 33 formed, the respective formed on the respective printing form
- an image of the color strip can be created with an optoelectronic device arranged in the rotary printing machine, wherein the photographic image of the respective color strip is preferably formed in the form of digital image data.
- the respective strip width of the plurality of pressing strips is automatically determined by detecting and evaluating the color strips using a computing device 88. The respective determined by the computing device 88
- Strip width of the plurality of pressure strips can then be visualized on a display device 91, wherein as the display device 91 preferably a monitor of a rotary press belonging to the control station is used.
- the evaluation is preferably carried out as described above. In addition, it is advantageous if the
- Computing device 88 from the determined values for the respective strip width Justiervortrade generated for adjusting the pressure of the rotational body involved in the respective pressing strip and z. B. on the display 91 indicates.
- Print engine superstructure module, first, upper module
- Printing unit base module, second, sub-module, substructure printing cylinder, printing cylinder, plate cylinder printing cylinder, transfer cylinder, rubber cylinder printing cylinder, impression cylinder, impression cylinder transfer drum, transfer drum, transferring
- Inking unit lifting inking unit, short inking unit, film inking unit
Landscapes
- Engineering & Computer Science (AREA)
- Quality & Reliability (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016214713.7A DE102016214713B4 (de) | 2016-08-09 | 2016-08-09 | Verfahren zum Kontrollieren einer Streifenbreite eines Pressstreifens |
DE102017201600.0A DE102017201600B4 (de) | 2017-02-01 | 2017-02-01 | Verfahren zum Kontrollieren mehrerer Pressstreifen hinsichtlich ihrer jeweiligen Streifenbreite |
PCT/EP2017/069687 WO2018029085A1 (de) | 2016-08-09 | 2017-08-03 | Verfahren zum kontrollieren der breite eines zwischen rotationskörpern eines druckwerks ausgebildeten pressstreifens |
Publications (2)
Publication Number | Publication Date |
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EP3439885A1 true EP3439885A1 (de) | 2019-02-13 |
EP3439885B1 EP3439885B1 (de) | 2019-05-29 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP17749693.2A Active EP3439885B1 (de) | 2016-08-09 | 2017-08-03 | Verfahren zum kontrollieren der breite eines zwischen rotationskörpern eines druckwerks ausgebildeten pressstreifens |
Country Status (3)
Country | Link |
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EP (1) | EP3439885B1 (de) |
CN (1) | CN109476152B (de) |
WO (1) | WO2018029085A1 (de) |
Families Citing this family (4)
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JP7052150B2 (ja) | 2018-11-18 | 2022-04-11 | ランダ コーポレイション リミテッド | 基材の非印刷マージンの低減によるデジタル印刷システムの印刷出力の改善 |
EP4017820B1 (de) * | 2019-08-21 | 2023-06-21 | Koenig & Bauer AG | Vorrichtung zum zuführen von bogen |
DE102020121617A1 (de) * | 2020-08-18 | 2022-02-24 | Koenig & Bauer Ag | Verfahren zur fotografischen Abbildung eines auf einem Bedruckstoff aufgebrachten Druckbildes |
CN115697709B (zh) * | 2020-10-15 | 2023-09-01 | 柯尼格及包尔公开股份有限公司 | 印刷监控条、基材以及控制或调节加工机的方法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
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DE4427967B4 (de) * | 1993-08-24 | 2004-09-30 | Heidelberger Druckmaschinen Ag | Verfahren zum Voreinstellen der Pressung zwischen farbführenden Zylindern einer Druckmaschine |
DE10211870B4 (de) | 2001-03-29 | 2010-07-29 | Heidelberger Druckmaschinen Ag | Verfahren zur Justierung zweier aneinander anlegbarer Walzen eines Druckwerks |
CN101090821B (zh) * | 2004-03-23 | 2010-11-03 | 柯尼格及包尔公开股份有限公司 | 具有至少一个可利用执行机构调节的机器部件的印刷机 |
DE102007008392B4 (de) * | 2006-04-03 | 2014-07-17 | manroland sheetfed GmbH | Integrierte Qualitätsregelung |
DE102007022079A1 (de) * | 2007-05-11 | 2008-11-13 | Heidelberger Druckmaschinen Ag | Verfahren zum automatisierten Justieren einer Rotationskörperpressung in einer Druckmaschine |
DE102008006192B4 (de) * | 2008-01-26 | 2011-07-14 | manroland AG, 63075 | Verfahren zum Betreiben einer Druckmaschine |
CN103522733B (zh) * | 2012-07-03 | 2017-04-12 | 小森公司 | 双面印刷机 |
DE102013217942B4 (de) * | 2013-09-09 | 2017-04-27 | Koenig & Bauer Ag | Verfahren und Vorrichtung zum Stellen von Rotationskörpern einer Druckmaschine |
-
2017
- 2017-08-03 EP EP17749693.2A patent/EP3439885B1/de active Active
- 2017-08-03 CN CN201780035792.8A patent/CN109476152B/zh active Active
- 2017-08-03 WO PCT/EP2017/069687 patent/WO2018029085A1/de active Application Filing
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Publication number | Publication date |
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CN109476152B (zh) | 2020-03-24 |
CN109476152A (zh) | 2019-03-15 |
WO2018029085A1 (de) | 2018-02-15 |
EP3439885B1 (de) | 2019-05-29 |
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