EP3169522B1 - Unité d'encrage d'une groupe d'impression - Google Patents

Unité d'encrage d'une groupe d'impression Download PDF

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Publication number
EP3169522B1
EP3169522B1 EP15732662.0A EP15732662A EP3169522B1 EP 3169522 B1 EP3169522 B1 EP 3169522B1 EP 15732662 A EP15732662 A EP 15732662A EP 3169522 B1 EP3169522 B1 EP 3169522B1
Authority
EP
European Patent Office
Prior art keywords
printing
roller
inking
cylinder
plate
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.)
Active
Application number
EP15732662.0A
Other languages
German (de)
English (en)
Other versions
EP3169522A1 (fr
Inventor
Stephan Behnke
Bernd Masuch
Wolfgang Reder
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KBA Metalprint GmbH and Co KG
Original Assignee
KBA Metalprint GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE102014213804.3A external-priority patent/DE102014213804A1/de
Application filed by KBA Metalprint GmbH and Co KG filed Critical KBA Metalprint GmbH and Co KG
Priority to PL15732662T priority Critical patent/PL3169522T3/pl
Publication of EP3169522A1 publication Critical patent/EP3169522A1/fr
Application granted granted Critical
Publication of EP3169522B1 publication Critical patent/EP3169522B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/02—Ducts, containers, supply or metering devices
    • B41F31/10—Applications of feed or duct rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/004—Driving means for ink rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/004—Electric or hydraulic features of drives
    • B41F13/0045—Electric driving devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
    • B41F17/08—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces
    • B41F17/14—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces on articles of finite length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
    • B41F17/08—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces
    • B41F17/14—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces on articles of finite length
    • B41F17/18—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces on articles of finite length on curved surfaces of articles of varying cross-section, e.g. bottles, lamp glasses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
    • B41F17/08—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces
    • B41F17/14—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces on articles of finite length
    • B41F17/20—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces on articles of finite length on articles of uniform cross-section, e.g. pencils, rulers, resistors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
    • B41F17/08—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces
    • B41F17/14—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces on articles of finite length
    • B41F17/20—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces on articles of finite length on articles of uniform cross-section, e.g. pencils, rulers, resistors
    • B41F17/22—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on filamentary or elongated articles, or on articles with cylindrical surfaces on articles of finite length on articles of uniform cross-section, e.g. pencils, rulers, resistors by rolling contact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
    • B41F17/28—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on curved surfaces of conical or frusto-conical articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/02—Ducts, containers, supply or metering devices
    • B41F31/022—Ink level control devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/02—Ducts, containers, supply or metering devices
    • B41F31/06—Troughs or like reservoirs with immersed or partly immersed, rollers or cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/02—Ducts, containers, supply or metering devices
    • B41F31/10—Applications of feed or duct rollers
    • B41F31/12—Applications of feed or duct rollers adjustable for regulating supply
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/02—Ducts, containers, supply or metering devices
    • B41F31/13—Means for driving fountain rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2213/00—Arrangements for actuating or driving printing presses; Auxiliary devices or processes
    • B41P2213/70—Driving devices associated with particular installations or situations
    • B41P2213/73—Driving devices for multicolour presses
    • B41P2213/734—Driving devices for multicolour presses each printing unit being driven by its own electric motor, i.e. electric shaft

Definitions

  • the invention relates to a device for printing hollow bodies according to the preamble of claim 1.
  • Such as B. from the WO 2012/148576 A1 is known to be used in the packaging industry in a device for decoration of each having a cylindrical surface having hollow bodies mostly multiple printing units. Each of these printing units each transfers a printing ink to a blanket commonly used by these printing units. The lateral surface of the respective hollow body is then by a relative movement between the lateral surface of the respective hollow body and the previously colored in particular multicolored blanket, in particular by rolling the lateral surface of the respective hollow body on this blanket, with a z. B. decorated multicolored print motif.
  • Such a device for printing or decoration of particular each having a preferably cylindrical outer surface having hollow bodies is z. B. used in conjunction with a plant usually having multiple workstations for the production of such hollow body, wherein the printing or the decoration of the hollow body is carried out by a printing process, which is why these hollow bodies can be generally referred to as printed products.
  • z. B. printed hollow body in a mass production with z. B. several hundred or even a few thousand pieces per minute, z. B. manufactured between 1,500 and 3,000 pieces per minute.
  • Such hollow body z. B. made of metal, especially steel or aluminum, or made of a plastic.
  • the respective hollow body may also be a round tube body produced either from a plastic or from aluminum, wherein a tube is understood to mean an elongated, firm, but malleable container which is provided for filling with a substance, in particular pasty substance.
  • Tubes made of aluminum are z. B. produced in arast whyfierpressvon.
  • Plastic tubes are z. B. produced by extrusion in each case as seamless tubes.
  • Another type of hollow bodies to be printed in an aforementioned device may be preferably cylindrical containers or vessels made of glass, e.g. As bottles or bottles.
  • Beverage cans are preferably made of aluminum and are i. d. R. so-called Zweiteildosen, in which a circular bottom together with a preferably straight cylinder jacket each from a single workpiece, d. H. from a so-called Slugs or from a Ronde, d. H. a circular disc, in a forming process, for.
  • Example in a cold extrusion or in a Switzerland horrumform compiler, preferably by deep drawing, in particular by ironing, to a one-sided open hollow body, d. H. be made to a so-called Rohdose and wherein in a final manufacturing step, a circular cover is placed on the cylinder jacket and airtight connected by beading with the cylinder jacket.
  • Tinplate is a tinned sheet steel.
  • the thickness of the steel sheet z. B. 0.15 mm to 0.49 mm the thickness of the tin layer z. B. 0.2 microns to 0.8 microns, the tin coating is used for corrosion protection.
  • Tinplate cans are so-called three-part cans.
  • a rectangular strip of sheet steel is bent to a preferably straight cylinder jacket, wherein the ends of this bent into a cylinder jacket strip in a butt joint be welded.
  • An aerosol can also referred to as a spray can or spray can, is a metal can for spraying liquids.
  • the filled liquid is under pressure, wherein as a propellant for discharging the liquid in question from the respective can z.
  • a propellant for discharging the liquid in question from the respective can z.
  • propane, butane, dimethyl ether or mixtures thereof or compressed air or nitrogen is used.
  • the aforementioned WO 2012/148576 A1 describes a device for decorating cans, wherein an arrangement of a plurality of printing units, each with an inking unit for multicolor decoration of a plurality of cans is provided, each of the inking units belonging to one of the printing units each having a color box for providing ink, wherein in each color box each ink fountain roller for receiving the ink from the respective ink fountain is provided, wherein in each inking unit a Farbduktor are provided, wherein the ink fountain each ink from the respective ink fountain roller receives, wherein in a respective inking machine in the following ink ductor roller compactor several iridescent Farbreiberwalzen and a plurality of ink transfer rollers cooperating with at least one of the ink fountain rollers are provided, wherein for each inking unit in each case a plate cylinder is provided with at least one pressure plate, wherein with the respective Plattenzylin for the application of the ink only a single inking roller cooperates.
  • WO 2004/109581 A2 is an apparatus for carrying out a contactless digital printing method, for. B. an inkjet printing process known to round objects, in particular second-dose, without the use of a blanket, if necessary, to print individually, wherein preferably a plurality of print heads are provided, each printing a single ink.
  • a short inking unit for a printing press comprising a printing form cylinder, an inking roller cooperating with the printing form cylinder and an inking roller contacting an inking roller associated with a means for ink supply, wherein at least one leveling roller between the location of the ink supply and the contact gap between the anilox roller and the Ink application roller, based on the direction of rotation of the anilox roller, is arranged, wherein the means for ink supply is formed as a chamber doctor blade.
  • a printing machine which comprises at least one printing forme, a dampening unit for moistening the printing forme with a dampening solution, an inking unit for coloring the printing forme with a printing ink and a dehumidifying device with a heating roller (tempering roller) for reducing a proportion of the dampening solution conveyed together with the printing ink
  • the inking unit is designed as a lifeless short inking unit
  • a Farbwerkswalze the inking unit has a first Abroll.stelle at which the inking roller with the heating roller in rolling contact
  • the inking roller has a second Abroll.stelle and wherein a shortest conveying path of the ink from the inking roller to Printing form is specified by at most one intermediate roll.
  • the DE 32 32 780 A1 is an inking unit for offset printing machines for printing sheets or webs with a plate cylinder is known which receives the required color of at most two inking rollers with elastic surface, which cooperate with a color cylinder to which the ink is fed via a Farbzu slaughtersystem which produces a continuous color film, wherein the color cylinder a An inking roller with almost the same diameter as the plate cylinder is arranged downstream, wherein the inking cylinder is assigned a dampening unit with at least one dampening agent transferring roller and wherein the transfer of the fountain solution to the inking cylinder in the same direction of rotation takes place after the inking and before the contact point with the inking roller.
  • a method for driving a printing unit with a short inking unit in a processing machine with an anilox roller and an associated doctor device and a subordinate roller of the anilox roller is known, which is arranged downstream of a plate / forme cylinder in the color flow direction, the plate / forme cylinder with a blanket cylinder and the Blanket cylinder is in operative connection with a printing cylinder leading the printing substrate, wherein the anilox roller is driven by a single drive, wherein in the printing / painting of the main drive a drive on a drive wheel of the printing cylinder and a drive wheel of the blanket cylinder and a second and first drive wheel of the plate / Form cylinder and a drive wheel of the inking roller and a drive wheel of the anilox roller is fed, wherein the single drive of the anilox roller is inactive, and wherein in the setup operation, the drive connection to the main drive between the first drive wheel and second Ant riebsrad the plate / forme cylinder is separated, the single drive
  • a device for filling wells of a cylinder of a printing press with a liquid wherein on the cylinder at least two squeegee means for filling wells of the cylinder are arranged with the liquid, wherein a conveying device connected to a conveying device for the liquid and one in the direction of rotation of the cylinder subordinate working doctor blade are provided, wherein the doctor blades are attached to a beam, wherein the istsakelte liquid is discharged to a collecting trough.
  • An anilox printing unit which has an inking roller and an anilox roller as inking rollers, wherein the anilox roller is mounted on pivoting levers, wherein the anilox roller and the inking roller each have bearer rings, one for pressing the bearer rings arranged one on the bearer rings of the other inking roller Device has springs to compensate for manufacturing tolerance caused diameter differences.
  • a device for printing in each case a lateral surface of hollow bodies wherein a to be printed hollow body is provided about a rotation axis transporting transport means, wherein a plurality of printing units are provided, each to be printed hollow body with the transport device in a printing range of at least one of the printing units is transportable wherein at least one of the printing units has a printing form cylinder and an inking unit with a single inking roller.
  • DE 10 2006 032 204 B3 is a method for providing at least one printing plate at its mounting location on a forme cylinder of a rotary printing machine known, wherein the imaged with a print motif printing form is transported with a transport device to its mounting location on the forme cylinder, wherein the printing form is transported with a transport module connected to the transport module, wherein the mounting of the printing forme takes place at its respective mounting location on the forme cylinder from the transport module.
  • DE 10 2005 044 223 A1 is a printing unit of a web-fed rotary printing press, with a form cylinder and rolling on the forme cylinder, wherein seen on the forme cylinder in the axial direction of the same seen several printing plates side by side and in the circumferential direction of the same preferably several printing plates are tensioned one behind the other, and with a forme cylinder associated printing plate changing device to Automatically change printing plates on the forme cylinder, wherein the printing plate changing device along the forme cylinder translationally movable actuator head for releasing and unlocking and locking or locking of printing plates on the forme cylinder and / or along the forme cylinder translatorisch movable exchange cassette to keep new or ein grillnder and Includes old or replaced plates.
  • the DE 40 03 445 A1 is an automatic Plattenzu Fighting- and cylinder loading system for a rotary printing machine with a handling device for removing a printing plate from a container and applying the printing plate on a plate cylinder of the printing unit and for removing a printing plate from a plate cylinder and for storing the printing plate in the container known
  • the Handling device is guided along a substantially parallel to the axis of rotation of the plate cylinder to be loaded path guide, wherein a carriage for transporting a plurality of printing plates to a printing unit towards or away from one of these printing works is provided and wherein the carriage along a for guiding the handling device substantially vertically running routing is performed.
  • a method for axially positioning a printing plate during its application to a cylinder of a rotary printing machine wherein the pressure plate is fed by means of transport to the cylinder, wherein for the application of the pressure plate, a cylinder section is selected, wherein from a plurality of possible, this cylinder section associated, preselected, axially adjacent positions a target position for the pressure plate is selected on the cylinder, wherein subsequently a position of the pressure plate in the axial direction with respect to a cylinder located on the reference position is determined and finally the pressure plate is brought into the preselected desired position.
  • DE 102 39 160 A1 is a printing unit for a hard printing plates in the indirect high-pressure method (Letterset) working printing machine for printing round hollow bodies, in particular beverage cans, known
  • this printing unit interchangeable on a large central cylinder is arranged in cylinders, which are on the central cylinder blankets, which have the same development length as the plate cylinder, wherein the ink is transferred from a paint container via a rasterized roller with a cooperating doctor device on an elastic applicator roll, wherein the applicator roll inking the plate cylinder with a clamped hard high-pressure plate and the high-pressure plate then transfers the ink to the blanket, preferably a screened hard roller immersed in a dye bath and with a squeegee device, which can be configured as a negative doctor blade or as a doctor blade provided.
  • the blanket preferably a screened hard roller immersed in a dye bath and with a squeegee device, which can be configured as a negative doctor blade or as a
  • an inking unit for a rotary printing press with inking rollers and a forme cylinder wherein at least two immediately adjacent inking rollers are dyed directly from the central roller of a central ink-carrying roller and the inking roller additionally starting from the central roller starting a second time inked, said Ink application rollers are preferably each rotatably mounted in a pair of rockers, wherein the pairs of rockers are arranged pivotably about the axis of rotation of the central roller, wherein in the pairs of wings additional rollers in the form of inking rollers and / or rider rollers are rotatably arranged, the rider roller to the ink roller on and Ab mon and can be brought out of contact with the inking roller.
  • the invention has for its object to provide a device for printing hollow bodies, which improves uniformity of ink application on an anilox roller and their color transport.
  • B. multicolor print motif, ie at least one printed image is carried out in a preferred embodiment in a high-pressure process.
  • Alternative printing methods are z.
  • a printing plate is arranged on a lateral surface of a printing form cylinder, in particular a plate cylinder, as the printing form.
  • the printing plate ready for use in the printing process is a printing form with a printing relief, this printing relief reflects the image intended for the printing process mirrored, wherein in a trouble-free printing operation only the printing relief on the transfer of the plate cylinder supplied by the inking ink is involved in the blanket.
  • the printing form or the printing plate has a plate-shaped preferably flexible carrier finite length z. B. from a steel sheet, wherein a particularly flexible pressure body is arranged on this support. At least the opposite in the circumferential direction of the plate cylinder ends of the carrier can, for. B.
  • the support of the printing form or the printing plate has a thickness in the range of z. B. 0.2 mm to 0.3 mm.
  • the printing plate, including its carrier has a total thickness in the range of z. B. 0.7 mm to 1.0 mm, preferably about 0.8 mm.
  • the pressure hull is z. B. formed from a plastic. The pressure hull is used to produce the printing cliché that can be used for the printing process. B. exposed to a print image reproducing negative film, wherein unexposed areas then from the pressure body z. B. be removed by washing or by means of a laser.
  • a device for printing or for decoration in particular in each case a preferably cylindrical lateral surface having hollow bodies preferably has a plurality, for. B. eight or ten or even more printing units - also called printing stations - on, at least one of these printing units, in the preferred embodiment, all of these printing units each have a rotatable printing plate cylinder, in particular designed as a plate cylinder printing form cylinder.
  • the printing units or printing stations and optionally also the printing form cylinder are each stored in a frame in this device and can be used in the same printing process to form on the same hollow body a multicolored print motif corresponding to the number of participating printing units or printing forme cylinder.
  • the storage of the printing plate cylinder or plate cylinder is preferably each formed as a flying bearing, wherein the respective plate cylinder or plate cylinder at one of its end faces in each case z. B. is mounted on a preferably conical pin.
  • On the lateral surface of each plate cylinder usually only a single printing plate is arranged in each case, wherein the support of the printing plate the circumference of the respective plate cylinder completely or at least for the most part, in particular spans more than 80%.
  • a directed in the circumferential direction of the relevant plate cylinder length of the pressure body of the printing plate is preferably formed shorter than the circumference of the relevant plate cylinder.
  • the printing form or the printing plate is in particular arranged magnetically on the lateral surface of each plate cylinder by means of its support, or at least can be arranged, ie the printing plate or the printing plate is or is preferably held magnetically there, ie by means of a magnetic holding force.
  • the device for printing or for decoration of a preferably cylindrical shell surface having hollow bodies at least one of the printing units or there are also several of these printing units each as a pressure in a digital printing process printing unit formed, wherein such a printing unit in particular has at least one inkjet print head or a laser.
  • each plate cylinder or plate cylinder each has a diameter in the range between 100 mm and 150 mm, in particular between 120 mm and 130 mm, wherein an axial length of the respective plate cylinder or plate cylinder in each case z. B. between 200 mm and 250 mm, in particular between 200 mm and 220 mm.
  • the printing plate to be arranged on the lateral surface of the relevant plate cylinder has a width directed in the axial direction of the relevant plate cylinder in the range of 150 mm to 200 mm, preferably approximately 175 mm.
  • Each of the used in the printing process z. B. formed as a plate cylinder printing plate cylinder transmits with its printing plate or with his printing plate each have a specific ink on a blanket.
  • the printing inks used are usually premixed, especially custom special colors that are tuned in terms of their respective printability in a special way to the material of the hollow body to be printed, depending on whether a surface z. B. of aluminum, a tinplate or a plastic is printed.
  • a device for printing or for decoration of each z. B. a cylindrical surface having hollow bodies, a printing ink from the printing plate or the printing plate is provided on the lateral surface of the respective hollow body transmitting device. This ink transferring device is z. B.
  • the segment wheel may also be designed as a decoration drum or as a blanket cylinder or as a transfer cylinder, which are rotatable in each case about a respective axis of rotation, at least during printing.
  • the preferably a plurality of printing plate cylinders or plate cylinders are each set radially to the printing blankets arranged on the circumference of the respective segment wheel or at least can be set.
  • cylindrical surface having hollow bodies is arranged along the circumference of the segment wheel in a row a larger number of blankets, as are each provided to the segment radially radially employed or at least adjustable pressure plate cylinder or plate cylinder.
  • the preferably carousel-like printing ink-transferring device, in particular the segment wheel has a diameter z. B. from 1,500 mm to 1,600 mm, preferably about 1,520 mm to 1,525 mm, and has at z. B.
  • each printing plate is preferably formed with a greater hardness than the hardness of the respective surface of the blankets.
  • the surface of the blankets is preferably flat, that is formed without a profiling.
  • An intensity of the flattening is z. B. before or at the beginning of a Printing process z. B. by means of a remote control by adjusting a force exerted by the respective printing plate cylinder or plate cylinder on the relevant blanket of the segment wheel contact pressure adjustable or is set.
  • z. B. prints in an inkjet printing process.
  • the segment also about a preferably horizontal axis rotating feed wheel or mandrel has concentric with its circumferential line in preferably equidistant distribution more, z. B. 24 or 36 holder z.
  • B. each in the form of a cantilevered from an end face of the Mandrel wheel mandrel or a spindle, wherein each holder of each one of the hollow body to be printed is held or at least can be held.
  • a trained as Mandrelrad transport device is sometimes referred to as a turntable with spindles.
  • a Mandrelrad is z. B. in the EP 1 165 318 A1 described.
  • a description of suitable Holder, spindles or mandrels can be found z. B.
  • each mandrel is referred to briefly as a mandrel.
  • a longitudinal axis of each mandrel is directed parallel to the axis of rotation of the Mandrel wheel.
  • each of these hollow body z. B. by means of a conveyor, for. B. a belt conveyor to the z. B. introduced as Mandrelrad transport device and there at a transfer station z. B. sucked by suction on one of the mandrels of Mandandrades and then held by the mandrel concerned, while designed as Mandrelrad transport device to the respective hollow body to be printed z.
  • Each thorn is z. B. rotatable by means of a motor about its respective longitudinal axis and in particular adjustable to a certain peripheral speed, so that each held by a mandrel to be printed hollow body in addition to the rotation of the Mandrel wheel by a stand-alone executed by the mandrel or at least executable rotation is rotatable.
  • the slippage of the hollow body to be printed on one of the mandrels of Mandandrades preferably takes place during a standstill phase of the mandrel in question, wherein the mandrel in question during its stoppage phase does not perform rotational movement about its own longitudinal axis.
  • the occupation of each mandrel with a hollow body to be printed is preferably checked, for. B. contactless with a sensor. At a lack of occupancy of a mandrel with a hollow body to be printed is the Mandrelrad z. B. such that a contact of the respective free mandrel is reliably avoided with a blanket of the segment wheel.
  • each edge of its box is trimmed at its open end.
  • Each Zweiteildose is z in other processing stations. B. washed, her interior in particular washed out.
  • the z. B. also designed as a Zweiteildose hollow body painted in a painting. At least the outer surface of each Zweiteildose z. B. primed, especially with a white primer. After printing on its lateral surface Zweiteildose of their respective holder z. B. on mandrel z. B.
  • each printed second can removed by compressed air or by a preferably switchable magnet and fed to at least one mandrel downstream of the processing station, z. B. an optionally further painting station for painting the outer lateral surface of each printed second can and / or an edging station.
  • the printed Zweiteildosen go through in particular a dryer, z. B. a hot air dryer to cure the at least one applied to their respective lateral surface ink.
  • the printing process for printing in particular the respective lateral surface of z. B. held on the Mandrelrad hollow bodies, in particular Zweiteildosen begins with the fact that all of the printing on the respective outer surface of the hollow body to be printed image required in each case z. B. from the respective printing plate of z. B. applied to the segment wheel plate cylinder are applied to the same of one of the circumference of the segment wheel blankets.
  • the printing blank dyed in this way with all the required printing inks then transfers in contact with contact between the blanket and the lateral surface of the respective blanket printing hollow body these inks simultaneously on the lateral surface of this hollow body during a single revolution of the held on one of the mandrels of Mandandrades to be printed hollow body about its own longitudinal axis.
  • the segment wheel is accelerated accordingly.
  • the segmental wheel carrying the relevant printing blanket accordingly gives the z. B. at the respective mandrel of the Mandrel wheel to be set peripheral speed.
  • the peripheral speed of the printing plate-carrying printing plate cylinder or the printing plate bearing plate cylinder is or is preferably in dependence on the peripheral speed z. B. the segment wheel set.
  • the Mandrel and the Segmentrad are z. B. driven by a same central machine drive and optionally mechanically z. B. coupled together via a gearbox.
  • the Mandrel and the Segmentrad are each driven individually by a separate drive and z. B. controlled by a control unit in their respective rotational behavior.
  • Fig. 1 shows in a schematic representation simplified and exemplified a generic device for printing or for decoration in particular in each case a preferably cylindrical lateral surface having hollow bodies 01, z. B. Secondary boxes 01, said hollow body 01 with a conveyor z. B. sequentially the z. B. supplied as a rotating or at least rotatable feed wheel, in particular as Mandrelrad 02 formed transport device and there are each held on a single holder to this transport device.
  • this transport device is preferably designed as a mandrel wheel 02.
  • the Mandrelrad 02 preferably acts an ink transferring device, eg. B.
  • a rotating or at least rotatable Segmentrad 03 together along whose or its circumference several printing blankets are arranged one behind the other.
  • this Segmentrad 03 employed or at least adjustable pressure plate cylinder 04 in particular plate cylinder 04 is provided, on the respective lateral surface of this plate cylinder 04 and plate cylinder 04 each have a printing plate, in particular a printing plate is arranged , This pressure plate is particularly suitable for carrying out a high-pressure process.
  • Each of the printing form cylinder 04 or plate cylinder 04 is supplied to the coloring of its printing plate or its printing plate by means of an inking unit 06 each have a specific ink.
  • the printing form cylinders 04 are each designed as a plate cylinder 04 carrying at least one printing plate.
  • Fig. 2 and 3 show in a simplified schematic representation of some details of each cooperating with a plate cylinder 04 inking unit 06, which z.
  • the inking unit 06 proposed here has for the color transport from a paint reservoir to the respective plate cylinder 04 advantageously a very short, ie consisting of only a few, preferably a maximum of five rolls, in particular two-roll compactor. In the case of the two-roll compactor, this compactor only consists of a single inking roller 07 and an inking roller 08 preferably formed as an anilox roller 08.
  • An inking unit 06 with a maximum of five rollers compactor belongs to the genus of short inking units.
  • Fig. 2 shows by way of example a (short) inking unit 06 with a two-roll compactor in a first operating position, in which the inking roller 07 and the anilox roller 08 set against each other, employed the inking roller 07 to the plate cylinder 04 and also the plate cylinder 04 radially to the ink from the plate cylinder 04th on the lateral surface of the respective hollow body 01 transmitting device, in particular to the segment 03 are employed.
  • Fig. 3 shows, however, for that in the Fig. 2 illustrated inking unit 06 a second operating position in which the inking roller 07 and the anilox roller 08 parked from each other, the inking roller 07 parked from the plate cylinder 04 and the plate cylinder 04 from the ink transferring device, in particular from the segment 03 are turned off. On the arrival and Abstellmechanismus will be discussed later.
  • the preferably designed as a plate cylinder 04 printing plate cylinder 04 and designed as an anilox roller 08 inking roller 08 are each independent of a motor 11; 12 rotatively driven, in particular in the preferred used in the Fig. 2 and 3 shown inking 06, wherein the relevant engine 11; 12 z. B. in its respective speed and / or angular position of a z. B. electronic control unit in particular regulated or at least regulated.
  • the z. B. trained as segment wheel 03 ink transferring device is z. B. driven by a separate drive or by a central machine drive rotatively.
  • the inking roller 07 is or is rotationally driven by the anilox roller 08 by friction.
  • an outer diameter d07 of the inking roller 07 and an outer diameter d04 of the at least one printing plate, in particular at least one printing plate bearing plate cylinder 04 are equal in magnitude.
  • the inking roller 07 in the first operating position of the inking unit 06 cooperating with the plate cylinder 04, in which the inking roller 07 and the anilox roller 08 are set against one another, the inking roller 07 is set against the plate cylinder 04 and the plate cylinder 04 is also set against the segment wheel 03, at least the respective centers of the plate cylinder 04, the inking roller 07 and the anilox roller 08 along a same straight line G arranged.
  • a detection device z. B. provided in the form of a rotary encoder, said encoder is particularly rigidly connected to a shaft of the inking roller 07.
  • the signal generated by the rotary encoder during a rotation of the inking roller 07 is used by the control unit to adjust the speed and / or angular position of the inking roller 07 by means of the rotation of the anilox roller 08 or, if necessary, track such that a synchronization between the plate cylinder 04 and the inking roller 07 is set or adjusted, so that the peripheral speed of the inking roller 07 coincides with the peripheral speed of the plate cylinder 04 within predetermined allowable tolerance limits.
  • the control unit preferably during the adjustment phase carried out by the peripheral speed of the anilox roller 08 such that it relative to the peripheral speed of the plate cylinder 04 in particular briefly - and thus not permanently - has a lead or lag.
  • the inking roller 07 has in its preferred embodiment a closed, preferably rubberized lateral surface.
  • Formed as an anilox roller 08 inking roller 08 has a z. B. coated with a ceramic surface, wherein in the ceramic layer a Haschur of z. B. 80 lines per centimeter axial length of the anilox roller 08 or a cup structure is formed.
  • the outer diameter d08 of the anilox roller 08 is preferably formed larger than the outer diameter d07 of the inking roller 07.
  • the anilox roller 08 should therefore have the largest possible delivery volume.
  • Fig. 2 is the respective direction of rotation of the segment gear 03, the plate cylinder 04, the inking roller 07 and the anilox roller 08 each indicated by a direction of rotation arrow.
  • At least designed as an anilox roller 08 inking roller 08 on a tempering, with the help of the Jacket surface of this roller is tempered.
  • the tempering of the anilox roller 08 operates z. B. with a introduced into the interior of the anilox roller 08 tempering, wherein the tempering z. B. is water or another liquid coolant.
  • the delivery volume of the anilox roller 08 can be influenced since this influences the viscosity of the ink to be transported by the inking unit 06.
  • the delivery volume of the anilox roller 08 and the viscosity of the ink to be transported by the ink 06 in turn ultimately affect a color density of the réelletragenden on the cylindrical surface of the hollow body 01 to be printed ink.
  • a thickness of a to be applied on the cylindrical surface of the hollow body 01 to be printed, formed by the ink color film is z. B. at about 3 microns.
  • the ink reservoir of the inking unit 06 is z. B. as formed in conjunction with the anilox roller 08 chamber doctor blade system 09.
  • form in this chambered doctor blade system 09 at least one ink tray, an axially parallel to the anilox roller 08 employees or at least adjustable squeegee and preferably also a pump for conveying the ink a single unit.
  • this chamber doctor blade system 09 in the inking unit 06 that is preferably on one frame of the inking unit 06 only on one side z. B. held by a suspension or stored, so that this unit in a simple manner after its release from the frame of the inking unit 06 laterally, ie by an axially parallel to the anilox roller 08 directed movement, z. B.
  • FIG. 4 shows in a perspective view formed as a single unit chamber doctor blade system 09 in cooperation with the anilox roller 08 of the inking unit 06th
  • the anilox roller 08 After the anilox roller 08 ink has absorbed from the ink reservoir, ie in particular from the chambered doctor blade 09, the anilox roller 08 transports them Printing ink directly and directly or via other rollers belonging to the inking unit 06 compactor to the preferably only one inking roller 07.
  • a rider roll 13 hired to the anilox roller 08 or at least adjustable to improve uniformity of the ink application on the anilox roller 08 and their color transport.
  • the rider roll 13 is arranged axially parallel to the anilox roller 08.
  • the rider roll 13 is not considered to belong to the roller train of the inking unit 06 because it does not transfer ink from the anilox roller 08 to another roller.
  • the rider roll 13 driven by friction from the anilox roller 08 has a rubberized lateral surface.
  • the hired on the anilox roller 08 rider roller 13 sucks in their unwinding on the lateral surface of the anilox roller 08 a part of the anilox roller 08 from the chambered doctor blade 09 recorded ink from the Haschur or the wells of the anilox roller 08 and applies this ink at least partially on the lateral surface of the Anilox roller 08 trained webs.
  • the rider roller 13 rolling on the anilox roller 08 causes the anilox roller 08 to deliver a larger quantity of printing ink to the inking roller 07.
  • a tempering having anilox roller 08 also improves the effectiveness of controlling the color density, characterized in that the rolling on the anilox roller 08 rider roller 13 contributes to the provision of a larger amount of ink.
  • the rider roller 13 rolling on the anilox roller 08 thus reduces both differences in density which can arise due to manufacturing tolerances of the anilox roller 08 and the risk of visibility of the hematite or wells of the anilox roller 08 on the printing substrate, ie here on the lateral surface of the hollow body 01 to be printed as a result of an at least in places too low paint application.
  • the apparatus for printing hollow bodies is preferably a fixed assignment to at least one, preferably to each plate cylinder, in particular plate cylinder 04 each provided a plate changer 14, with which the particular for the respective printing form cylinder printing forme or for the relevant plate cylinder 04 certain pressure cliché within z.
  • the device concerned for printing or for decoration of a particular cylindrical lateral surface having hollow bodies 01 preferably automated, d. H. can be replaced without intervention by operating personnel.
  • a printing forme for this particular form 04 printing form within this device is preferably interchangeable from that side of the respective printing unit ago, which is the unit of the chambered doctor blade 09 holding side in particular diametrically opposite.
  • the disc changer 14 z. B.
  • Fig. 5 and 6 show in a perspective view of a preferred embodiment of a very advantageous formed plate changer 14 in two different operating positions for executing a preferably in a very short set-up time automatically, reliably and preferably also in register executable plate change or printing plate change.
  • Fig. 5 shows a first operating position, in which axially laterally next to the printing unit on the plate cylinder or plate changer 14 z.
  • B. submitted a printing plate or removed from the disk changer 14.
  • Fig. 6 shows a second operating position, in the immediately before the plate cylinder or plate cylinder 04 along to this from the plate changer 14 from z. B.
  • the disk changer 14 has a particular plane, z. B. table-shaped support surface 16, on which z. B. a arranged on the plate cylinder 04 or to be arranged printing plate can be placed preferably completely.
  • the bearing surface 16 is preferably arranged to be movable back and forth linearly in particular longitudinally of the axis of rotation of the associated printing plate cylinder or plate cylinder 04 between at least two defined positions.
  • this movable, in particular movable support surface 16 of the disc changer 14 assumes its first operating position, in a directly before the plate cylinder or plate cylinder 04 along this second position of the support surface 16 its second operating position ,
  • the support surface 16 of the plate changer 14 In the first operating position, the support surface 16 of the plate changer 14 is at least partially in front of a front side of the respective plate cylinder or plate cylinder 04.
  • the support surface 16 of the plate changer 14 is preferably at least partially below the lateral surface of the plate cylinder or plate cylinder 04th
  • the movement of the support surface 16 of the disk changer 14 takes place z. B. along a longitudinally to the plate cylinder or plate cylinder 04 arranged traverse 17.
  • the support surface 16 of the disc changer 14 thus has a reference to the respective plate cylinder or plate cylinder 04 axial travel.
  • the movement of the support surface 16 z. B. each bounded by a stop.
  • At least the carrier of the respective printing plate is z. B. formed by a particular running using registration marks trimming such that the relevant printing plate can be arranged in register on the support surface 16 of the disk changer 14.
  • one of these two stops in its position is preferably changeable and in particular adjustable.
  • the first stop and / or the second stop are preferably designed as a respective cylindrical or conical machine element which is perpendicular to the support surface 16 of the plate changer 14, preferably each as a register pin standing vertically on the support surface 16 of the plate changer 14.
  • the plate changer 14 has in its preferred embodiment except the support surface 16 for receiving a z. B. the plate cylinder 04 in particular to be supplied in register pressure cliche z.
  • z. B. a detached from the plate cylinder 04 printing plate can be stored.
  • a z. B. by means of its carrier in particular magnetically held on the lateral surface of the respective plate cylinder 04 printing plate z. B. by means of a tool guided tangentially to the printing form, for. B. lifted by means of a guided between the carrier of the printing plate and the lateral surface of the relevant plate cylinder 04 spatula of the lateral surface of the respective plate cylinder 04 or is at least lifted off from there.
  • a printing plate which is preferably to be supplied in register with the relevant plate cylinder 04 is held on the bearing surface 16 of the plate changer 14, in particular after its register-oriented alignment, by a magnetic holding force.
  • It is at least one stamp, preferably two in the longitudinal direction of the respective plate cylinder 04 spaced pistes each provided with a magnetic holding force oppositely directed direction of action, said effective direction to the support surface 16 of the disk changer 14 z. B. is directed substantially orthogonal. With this at least one stamp at least one of the relevant plate cylinder 04 facing the end of the bearing surface 16 of the plate changer 14 held printing plates from this support surface 16 releasably and due to a lifting movement of the at least one punch to the relevant plate cylinder 04 can be transferred.
  • the at least one stamp is z. B.
  • each magnets are used, these magnets are preferably each formed as a permanent magnet.
  • the above-described embodiment of the plate cylinder 04 has the advantage that a conveyor for transferring the printing plate to the respective plate cylinder 04 or for removing the printing plate of the respective plate cylinder 04 is not required and the disc changer 14 can therefore be realized very inexpensively. In particular, a plate change with the disk changer 14 described above can be carried out automatically.
  • the plate cylinder 04 or plate cylinder is mounted at both ends on a load arm of a force arm and the load arm preferably one-sided first lever assembly 18, wherein the power arm and the angle fixed to the power arm arranged load arm of this first lever assembly 18 together about an axis parallel to the plate cylinder 04 directed first axis of rotation 19 are pivotable.
  • first drive 21 z In an operative connection to the power arm of the first lever assembly 18 is for exerting a torque about the first axis of rotation 19, a preferably controllable by a control unit first drive 21 z.
  • B. arranged in the form of a hydraulic or pneumatic working cylinder, wherein upon actuation of this first drive 21 depending on the effective direction of the load arm of this first lever assembly 18 arranged printing form cylinder or plate cylinder 04 either from a blanket z.
  • the segmented wheel 03 is turned off or employed on selbiges. To limit the printing forme cylinder or plate cylinder 04 against the relevant blanket z. B.
  • a first stop 22 is provided for the power arm of the first lever assembly 18, by means of which a by the pivotal movement of the plate cylinder or plate cylinder 04 against the Segmentrad 03 mecanical path is limited.
  • the pressing force exerted by the plate cylinder or plate cylinder 04 against the segment 03 is adjustable.
  • the inking roller 07 is mounted in particular at both ends on a load arm of a force arm and the load arm preferably one-sided second lever assembly 23, wherein the power arm and the load arm of this second lever assembly 23 together about the axis of rotation parallel to the plate cylinder 04 directed first axis of rotation 19th are pivotable.
  • the second axis of rotation 26 is preferably formed stationary on the second lever arrangement 23.
  • a preferably controllable second drive 27 is actuated when acting on the power arm of the second lever assembly 23, by means of which the inking roller 07 depending on the direction of action of the second drive 27 to the plate cylinder 04 adjustable or offset from this.
  • a preferably controllable third drive 28 is actuated during its actuation on the power arm of the third lever arrangement 24, by means of which the anilox roller 08, together with the chambered doctor blade system 09, can be adjusted to the inking roller 07, depending on the effective direction of the third drive 28 this off.
  • the second drive 27 and / or the third drive 28 are each z. B. also formed in the form of a hydraulic or pneumatic working cylinder.
  • the pivoting movement of the load arm of the second lever assembly 23 is z. B. limited by a preferably adjustable, in particular adjustable by an eccentric first stop system 29, whereby the force exerted by the inking roller 07 against the printing plate cylinder or plate cylinder 04 contact force is limited or at least limited.
  • the pivoting movement of the load arm of the third lever arrangement 24 is z. B. limited by a preferably adjustable, in particular adjustable by an eccentric second stop system 31, whereby the force exerted by the anilox roller 08 against the inking roller 07 contact pressure is limited or at least limited.
  • FIG. 2 shows, by way of example, a first operating state in which the first drive 21 and the second drive 27 and the third drive 28 are respectively unactuated or in their idle state, whereby the anilox roller 08 to the inking roller 07 and the inking roller 07 to the printing plate cylinder or plate cylinder 04 and the printing plate cylinder or plate cylinder 04 are each employed on the segment wheel 03.
  • Fig. 3 shows by way of example a second operating state in which the first drive 21 and the second drive 27 and the third drive 28 are respectively actuated or in their working state, whereby the anilox roller 08 of the inking roller 07 and the inking roller 07 from the plate cylinder or plate cylinder 04 and the Printing form cylinder or plate cylinder 04 are parked by the segment 03 each.
  • the respective force arm and / or load arm of the three aforementioned lever arrangements 18; 23; 24 is or are each z. B. formed as a pair of opposing lever rods or side frame walls, between which in the respective above-described assignment of either the plate cylinder or plate cylinder 04 or the inking roller 07 or the anilox roller 08 is arranged.
  • the three aforementioned lever arrangements 18; 23; 24 are each arranged in different spaced-apart vertical planes, so that they do not interfere with each other in their respective pivoting.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Printing Methods (AREA)

Claims (9)

  1. Dispositif d'impression de corps creux, dans lequel ce dispositif comprend un dispositif d'encrage (06) d'un groupe d'impression, dans lequel le dispositif d'encrage (06) présente un rouleau tramé (08) recevant de l'encre d'impression d'un réservoir d'encre et un rouleau toucheur (07) placé sur un cylindre porte-plaque (04) du groupe d'impression, caractérisé en ce qu'un rouleau baladeur (13) est agencé dans une zone située en aval du réservoir d'encre coopérant avec ce rouleau tramé (08) dans le sens de rotation du rouleau tramé (08) entre le réservoir d'encre et le rouleau toucheur (07) parallèlement à l'axe du rouleau tramé (8), dans lequel le rouleau baladeur (13) est placé sur le rouleau tramé (08), dans lequel le rouleau baladeur (13) présente une surface extérieure caoutchoutée, dans lequel le rouleau baladeur (13) est entraîné en rotation par friction par le rouleau tramé (8), dans lequel le rouleau toucheur (07) est entraîné en rotation par friction par le rouleau tramé (08), dans lequel le cylindre porte-plaque (04) et le rouleau tramé (08) sont entraînés chacun en rotation de manière indépendante par un moteur (11 ; 12).
  2. Dispositif d'impression selon la revendication 1, caractérisé en ce qu'un diamètre extérieur (d07) du rouleau toucheur (07) et un diamètre extérieur (d04) du cylindre porte-plaque (04) garni d'au moins une plaque d'impression sont de même grandeur et/ou en ce qu'un diamètre extérieur (d08) du rouleau tramé (08) est plus grand qu'un diamètre extérieur (d07) du rouleau toucheur (07).
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que le rouleau tramé (08) présente un dispositif de thermorégulation thermo-régulant sa surface.
  4. Dispositif selon la revendication 1 ou 2 ou 3, caractérisé en ce que le rouleau tramé (08) présente une surface extérieure revêtue d'une céramique.
  5. Dispositif selon la revendication 1 ou 2 ou 3 ou 4, caractérisé en ce que le rouleau tramé (08) présente sur sa surface extérieure une hachure ou une structure alvéolaire.
  6. Dispositif selon la revendication 1 ou 2 ou 3 ou 4 ou 5, caractérisé en ce que le rouleau toucheur (07) présente une surface extérieure fermée.
  7. Dispositif selon la revendication 6, caractérisé en ce que le rouleau toucheur (07) présente une surface extérieure caoutchoutée.
  8. Dispositif selon la revendication 1 ou 2 ou 3 ou 4 ou 5 ou 6 ou 7, caractérisé en ce que le réservoir d'encre est réalisé sous la forme d'un système de racle à chambre (09) agissant en combinaison avec le rouleau tramé (08).
  9. Dispositif selon la revendication 1 ou 2 ou 3 ou 4 ou 5 ou 6 ou 7 ou 8, caractérisé en ce que le régime respectif du moteur (11) du cylindre porte-plaque (04) et du moteur (12) du rouleau tramé (08) est réglé ou peut au moins être réglé dans chaque cas.
EP15732662.0A 2014-07-16 2015-06-29 Unité d'encrage d'une groupe d'impression Active EP3169522B1 (fr)

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DE102014213804.3A DE102014213804A1 (de) 2014-07-16 2014-07-16 Farbwerk eines Druckwerks
DE102014221220 2014-10-20
PCT/EP2015/064643 WO2016008700A1 (fr) 2014-07-16 2015-06-29 Unité d'encrage d'une unité d'impression

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US9833989B2 (en) 2017-12-05
WO2016008700A1 (fr) 2016-01-21
US20170197404A1 (en) 2017-07-13
EP3169522A1 (fr) 2017-05-24
PL3169522T3 (pl) 2018-07-31

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