EP3743281B1 - Dispositif d'impression de corps creux - Google Patents

Dispositif d'impression de corps creux Download PDF

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Publication number
EP3743281B1
EP3743281B1 EP19701079.6A EP19701079A EP3743281B1 EP 3743281 B1 EP3743281 B1 EP 3743281B1 EP 19701079 A EP19701079 A EP 19701079A EP 3743281 B1 EP3743281 B1 EP 3743281B1
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EP
European Patent Office
Prior art keywords
printing
wheel
drive
segment
mandrel
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
EP19701079.6A
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German (de)
English (en)
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EP3743281A1 (fr
Inventor
Stephan Behnke
Kurt Weschenfelder
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Koenig and Bauer AG
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Koenig and Bauer AG
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Priority to PL19701079T priority Critical patent/PL3743281T3/pl
Publication of EP3743281A1 publication Critical patent/EP3743281A1/fr
Application granted granted Critical
Publication of EP3743281B1 publication Critical patent/EP3743281B1/fr
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    • 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
    • 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
    • B41F27/00—Devices for attaching printing elements or formes to supports
    • B41F27/12—Devices for attaching printing elements or formes to supports for attaching flexible printing formes
    • B41F27/1206—Feeding to or removing from the forme cylinder

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, several printing units are mostly used in the packaging industry in a device for decorating hollow bodies each having a cylindrical outer surface. Each of these printing units transfers one printing ink to a printing blanket that is used jointly by these printing units. The outer surface of the hollow body in question is then by a relative movement between the outer surface of the hollow body in question and the previously in particular multi-colored printing blanket, in particular by rolling the outer surface of the hollow body in question on this printing blanket, with a z. B. decorated multicolored print motif.
  • Such a device for printing or for decorating hollow bodies is e.g. B. used in connection with a system, usually having several work stations, for the production of such hollow bodies, the printing or decoration of the hollow bodies being carried out by a printing process, which is why these hollow bodies can generally also be referred to as printed products.
  • the hollow bodies to be printed are in a mass production with z. B. several hundred or even a few thousand pieces per minute, e.g. B. manufactured between 1,500 and 3,000 pieces per minute.
  • Such hollow bodies are z. B. made of metal, in particular steel or aluminum, or made of a plastic.
  • Such hollow bodies made of metal are z. B. used as beverage cans or as aerosol cans.
  • Such hollow bodies made of plastic are z. B. manufactured in the form of thermoplastic moldings and z. B. as a cup for packaging z. B. used by liquid or pasty foods, especially dairy products or beverages.
  • the respective hollow body can, however, also be a round tube body made either from a plastic or from aluminum, whereby a tube is understood to be an elongated, solid, but malleable container which is intended to be filled with a particularly paste-like substance.
  • Tubes made of aluminum are z. B. produced in a reverse extrusion process.
  • Tubes made of plastic are z. B. each produced as seamless tubes by means of extrusion.
  • Another type of hollow bodies to be printed in an aforementioned device can be preferably cylindrical containers or vessels made of glass, e.g. B. Bottles or flacons.
  • Beverage cans are preferably made of aluminum and are i. d.
  • a circular base together with a preferably straight cylinder jacket each consist of a single workpiece, i. H. from a so-called slug or from a round blank, d. H. a circular disc, in a forming process, e.g. B. in a cold extrusion process or in a tensile compression forming process, preferably by deep drawing, in particular by ironing deep drawing, to form a hollow body open on one side, d. H.
  • a circular cover is placed on the cylinder jacket and connected to the cylinder jacket by flanging it in an airtight manner.
  • Tinplate cans are another type of can.
  • Tinplate is a tin-plated steel sheet.
  • the thickness of the steel sheet is 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 form a preferably straight cylinder jacket, the ends of this strip bent to a cylinder jacket in a butt joint be welded.
  • a circular base and a circular cover are placed on the cylinder jacket and the edges are flanged.
  • z. B. all three parts, ie the cylinder jacket, the bottom and the cover, preferably a wave profile.
  • An aerosol can also known as a spray can or spray can, is a metal can for spraying liquids.
  • the liquid filled is under pressure.
  • 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, an arrangement of several printing units, each with an inking unit, being provided for the multicolored decoration of a plurality of cans.
  • Each of the inking units belonging to one of the printing units has an ink fountain for providing printing ink, with an ink fountain roller for receiving the printing ink from the relevant ink fountain being provided in each ink fountain.
  • the inking ductor taking up printing ink from the respective ink fountain roller, with several oscillating ink distributor rollers and several ink transfer rollers each cooperating with at least one of the ink distributor rollers being provided in a roller train following the respective ink fountain roller in the relevant inking unit.
  • WO 2004/109581 A2 is a device for performing a non-contact digital printing process, e.g. B. an inkjet printing process known to round objects, in particular two-part cans, to be printed individually if necessary, without the use of a printing blanket, with a plurality of print heads preferably being provided, each of which prints a single printing ink.
  • a non-contact digital printing process e.g. B. an inkjet printing process known to round objects, in particular two-part cans, to be printed individually if necessary, without the use of a printing blanket, with a plurality of print heads preferably being provided, each of which prints a single printing ink.
  • a decorator with a mandrel wheel, a segment wheel, a transfer disk and a transport chain is known, the mandrel wheel, the segment wheel, the transfer disk and the transport chain each having a motor and a decoder, a controller being provided, the controller being based on a Information received from the decoders adapts or sets the respective speed of the mandrel wheel, the segment wheel, the transfer disk and the transport chain.
  • Cans to be printed are fed to the mandrel wheel in a tubular feed device in a translatory movement.
  • a method for register correction on processing machines of material webs in particular rotary printing machines, paper processing machines and sheet-fed printing machines is known, with at least one transport axis and at least one processing axis interacting therewith, which are driven in a synchronized manner by an associated individual drive and of which at least one axis follows a temporal master axis function, which corresponds to an instantaneous position of a master axis, and several, register following axes are corrected in accordance with a scanning of register marks of the material web with respect to the master axis function, whereby only one common scanning takes place for a group of register following axes which correspond with regard to the register correction common correction function is derived, which all axes of the group follow.
  • a short inking unit for a printing machine containing a printing forme cylinder, an inking roller interacting with the printing forme cylinder, and an anilox roller contacting the inking roller
  • the anilox roller Device for ink supply is assigned, with at least one leveling roller between the location of the ink supply and the contact gap between the anilox roller and the inking roller, based on the direction of rotation of the anilox roller, the device for ink supply being designed as a chamber doctor blade.
  • a printing machine which comprises at least one printing form, a dampening unit for dampening the printing form with a dampening solution, an inking unit for inking the printing form with a printing ink and a dehumidifying device with a heating roller (temperature control roller) for reducing a proportion of the dampening solution conveyed together with the printing ink , the inking unit being designed as a lifterless short inking unit, with an inking unit roller of the inking unit having a first unwinding contact point at which the inking unit roller is in unwinding contact with the heating roller, the inking unit roller having a second unwinding contact point and a shortest conveying path of the printing ink from the inking unit roller to Printing form is given by at most one intermediate roller.
  • an inking unit for offset printing machines for printing sheets or webs with a plate cylinder which receives the required color from a maximum of two inking rollers with an elastic surface, which interact with an inking cylinder to which the color is fed via an ink supply system that produces a continuous ink film,
  • the inking cylinder is followed by an inking roller with almost the same diameter as the plate cylinder, the inking cylinder being assigned a dampening unit with at least one roller that transfers the dampening solution, and the transfer of the dampening solution to the inking cylinder in the direction of rotation of the same after the inking and before its contact point with the Inking roller takes place.
  • a device for filling recesses of a cylinder of a printing press with a liquid is known, at least two doctor blade devices being arranged on the cylinder for filling recesses of the cylinder with the liquid, one application device connected to a conveying system for the liquid and one of these in the direction of rotation of the cylinder are provided downstream working squeegees, the squeegees being attached to a beam, the squeegee liquid being drained to a collecting pan.
  • an inking unit for use in a printing machine with a working doctor blade that can be adjusted to an anilox roller and an ink tray with ink conveying means is known, the working doctor blade, the inking tray and the means for conveying the ink to the anilox roller being combined into one unit and the structural unit can be releasably attached to a carrier mounted on the printing machine.
  • An anilox printing unit which has an inking roller and an anilox roller as inking rollers, the anilox roller being mounted on pivot levers, the anilox roller and the inking roller each having bearer rings, one of which is arranged to press the bearer rings of one against the bearer rings of the other inking roller Has device springs to compensate for manufacturing tolerance-related differences in diameter.
  • a device for printing a respective outer surface of hollow bodies, a transport device transporting the hollow bodies to be printed around an axis of rotation being provided, with several printing units being provided, each hollow body to be printed being transportable with the transport device into a printing area of at least one of the printing units , wherein at least one of the printing units has a printing forme cylinder and an inking unit with a single inking roller.
  • a rotary printing machine for printing containers wherein a carousel carrying a chuck is provided, the carousel being rotatively driven by an electric motor with an integrated rotary encoder DE-A-10 2016 2011 39 discloses a device for printing hollow bodies, with a segmented wheel and a device for sequentially feeding the hollow bodies to the circumference of the segmented wheel, the segmented wheel having a plurality of segments on its circumference, each for receiving a printing blanket, with at least one of the segments on one of the segments arranged printing blankets roll on the hollow body to be printed or at least rollable, adjacent segments being separated from each other by a recess directed parallel to the axis of rotation of the segment wheel, this device for sequentially feeding the hollow body to the circumference of the segment wheel having at least one mandrel wheel, wherein in the transport direction of the hollow body first the mandrel wheel and then the segment wheel are arranged, with several drivers on the circumference of the conveyor wheel and several
  • the invention is based on the object of creating a device for printing hollow bodies with which a high print quality can be achieved through high positioning accuracy of the rotating components involved in the printing process.
  • the printing in particular of the outer surface of a hollow body with a z. B. multicolored print motif, ie at least one print image, takes place in a preferred embodiment in a letterpress process.
  • Alternative or additional printing methods are e.g. B. a screen printing process or an offset printing process or a printing formless digital printing process.
  • the invention is described by way of example in connection with a letterpress process.
  • a printing block is arranged as a printing forme on a lateral surface of a plate cylinder.
  • the printing block ready for use for the printing process is a printing form with a printing relief, this printing relief mirroring the printing image intended for the printing process, with only the printing relief being involved in the transfer of the printing ink supplied to the plate cylinder by the inking unit onto the printing blanket in a trouble-free printing operation.
  • the printing form or the printing cliché has a plate-shaped, preferably flexible support of finite length z. B. from a steel sheet, a particularly flexible pressure body is arranged on this carrier. At least the opposite ends of the carrier in the circumferential direction of the plate cylinder can, for. B.
  • the carrier of the printing form or the printing plate has a thickness in the range of, for. B. 0.2 mm to 0.3 mm.
  • the printing block including its carrier has a total thickness in the range of, for. B. 0.7 mm to 1.0 mm, preferably about 0.8 mm.
  • the pressure body is z. B. formed from a plastic. The pressure hull is used for the production of the printing cliché z. B. exposed with a negative film reproducing the print image, with unexposed areas then from the print body z. B. can be removed by washing or by means of a laser.
  • a device for printing or for decorating hollow bodies preferably has several, e.g. B. eight or ten or even more printing units - also called printing stations -, at least one of these printing units, in the preferred embodiment all these printing units each having a rotatable printing forme cylinder, in particular a printing forme cylinder designed as a plate cylinder.
  • the printing units or printing stations and possibly also the printing forme cylinders in this device are each stored in a frame and can be used in the same printing process to form a multicolored printing motif on the same hollow body according to the number of printing units or printing forme cylinders involved.
  • the mounting of the printing forme cylinder or plate cylinder is preferably designed as a floating mounting, the respective printing forme cylinder or plate cylinder on one of its end faces, for. B. is mounted on a preferably conical pin.
  • the carrier of the printing block is arranged on the outer surface of each plate cylinder, the carrier of the printing block completely or at least largely, in particular more than 80%, of the circumference of the plate cylinder in question.
  • a length of the printing body of the printing block directed in the circumferential direction of the plate cylinder concerned is preferably shorter than the circumferential length of the plate cylinder concerned.
  • the printing form or the printing cliché is arranged or at least can be arranged by means of its carrier in particular magnetically on the outer surface of each plate cylinder, ie the printing form or the printing cliché is preferably held there magnetically, ie by means of a magnetic holding force.
  • the device for printing or for Decoration of hollow bodies each preferably having a cylindrical outer surface, is at least one of the printing units or several of these printing units are each designed as a printing unit that prints without printing form in a digital printing process, such a printing unit in particular having at least one inkjet print head or a laser.
  • each printing forme cylinder or plate cylinder has a diameter in the range between 100 mm and 150 mm, in particular between 120 mm and 130 mm, with an axial length of the respective printing forme cylinder or plate cylinder, for. B. between 200 mm and 250 mm, in particular between 200 mm and 220 mm.
  • the printing block to be arranged on the lateral surface of the plate cylinder in question has a width in the axial direction of the plate cylinder in question in the range from 150 mm to 200 mm, preferably about 175 mm.
  • Each of the e.g. B. designed as a plate cylinder printing forme cylinder transfers with its printing forme or with its printing cliché in each case a certain printing ink on a printing blanket.
  • the printing inks used are usually premixed, in particular customer-specific special colors that are matched with regard to their respective printability in a special way to the material of the hollow body to be printed, depending on whether a surface z. B. made of aluminum, a tinplate or a plastic is printed.
  • a printing ink is provided from the printing form or the printing block to the surface of the hollow body in question transferring device.
  • This ink-transferring device is preferably designed as a segment wheel rotating about a particularly horizontal axis.
  • B. eight, ten, twelve or even more printing blankets are arranged or at least can be arranged.
  • the printing ink-transferring device can, depending on the printing process used, also be designed as a decoration drum or as a blanket cylinder or as a transfer cylinder, each of which can be rotated about an axis of rotation at least during printing.
  • the arrangement of the printing blankets on the circumference of the segment wheel has so far taken place in that the printing blankets on the circumference of the segment wheel are each z.
  • B. are attached by a material connection, preferably by an adhesive bond.
  • the preferably several printing forme cylinders or plate cylinders are each adjusted radially or at least adjustable against the printing blankets arranged on the circumference of the segment wheel in question.
  • cylindrical outer surface having hollow bodies is arranged along the circumference of the segment wheel one behind the other a larger number of printing blankets than are provided in each case radially adjusted or at least adjustable printing forme cylinders or plate cylinders on the segment wheel.
  • the preferably carousel-like printing ink-transferring device, in particular the segment wheel has a diameter of, for. B. 1,400 mm to 1,600 mm, preferably about 1,520 mm to 1,525 mm, and has at z. B.
  • each printing plate is preferably designed with a greater hardness than the hardness of the respective surface of the printing blankets.
  • the surface of the printing blankets is preferably flat, that is, it is designed without 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 setting a contact pressure exerted by the relevant printing forme cylinder or plate cylinder on the relevant printing blanket of the segmented wheel, or is set in such a way.
  • the hollow bodies to be printed here for example. B. the two-part cans to be printed, z. B. by means of a transport device that transports the hollow bodies to be printed, preferably along at least part of a circular path, ie a circular arc around an axis of rotation, preferably by means of at least one feed wheel, in particular by means of a mandrel wheel continuously or at a set cycle to at least one of the devices for printing each of a lateral surface of hollow bodies belonging printing units brought up and thus transported into a printing area of at least one of these printing units.
  • the hollow body to be printed by means of the transport device to at least one of the z. B.
  • segmented printing blankets or the hollow bodies to be printed are each directly and immediately, ie without the aid of a z. B. designed as a segment wheel printing ink-transmitting device in the respective printing area of at least one of these printing units transported what z. B. is the case when the relevant Printing unit in a direct printing process, e.g. B. prints in an inkjet printing process.
  • the segment wheel also rotating about a preferably horizontal axis feed wheel or mandrel wheel has concentrically to its circumferential line in preferably equidistant distribution several, z. B. 24 or 36 holding devices - in short: holder - z. B. each in the form of a mandrel protruding from an end face of the mandrel wheel or a spindle, each holder holding one of the hollow bodies to be printed or at least being able to hold it.
  • a transport device designed as a mandrel wheel is sometimes also referred to as a turntable with spindles.
  • a mandrel wheel is z. B. in the EP 1 165 318 A1 described.
  • each mandrel is briefly referred to as a mandrel.
  • a longitudinal axis of each mandrel is directed parallel to the axis of the mandrel wheel.
  • each z. B. designed as a two-piece can to be printed hollow bodies, each of these hollow bodies z. B. by means of a conveyor, e.g. B. a belt conveyor and / or a conveyor wheel to which z. B. designed as a mandrel wheel transport device and there at a transfer station z. B.
  • each mandrel is z. B. rotatable around its respective longitudinal axis by means of a motor and in particular set or at least adjustable to a certain circumferential speed, so that each hollow body to be printed on held by a mandrel can be rotated in addition to the rotation of the mandrel wheel by an independently executed or at least executable rotation by the mandrel.
  • the hollow body to be printed is slipped onto one of the mandrels of the mandrel wheel preferably during a standstill phase of the relevant mandrel, the relevant mandrel not executing any rotary movement about its own longitudinal axis during its standstill phase.
  • the occupancy of each mandrel with a hollow body to be printed is preferably checked, e.g. B. contactless with a sensor. If there is no assignment of a mandrel with a hollow body to be printed, the mandrel wheel z. B. moved in such a way that contact of the free mandrel in question with a printing blanket of the segment wheel is reliably avoided.
  • Two-part cans to be printed are z. B. to the mandrel wheel in a machining station upstream of the mandrel wheel, z. B. deep-drawn from a round blank. In a further processing station, the edge of each two-piece can is trimmed on its open end.
  • Each two-part box is z. B. washed, in particular their inside washed out, if necessary, the inner wall and the bottom of the two-piece box in question are also painted. At least the outer surface of each two-part box is z. B. primed, especially with a white primer. After printing on its outer surface, each two-part can is held by its respective holder, for. B. on the mandrel wheel z. B.
  • the printed two-part cans go through in particular a dryer, e.g. B. a hot air dryer in order to cure the at least one printing ink applied to its respective lateral surface.
  • the printing process for printing in particular the respective outer surface of z. B. held on the mandrel wheel hollow bodies, in particular two-part cans begins with all of the printing inks required for the print image to be printed on the respective outer surface of the hollow body, e.g. B. from the respective printing cliché of the z. B. on the segment wheel employed plate cylinder can be applied to the same by one of the printing blankets arranged on the circumference of the segment wheel.
  • the relevant printing blanket colored with all the necessary printing inks then transfers these printing inks simultaneously during a single rotation of the hollow body to be printed on one of the mandrels of the mandrel wheel around its longitudinal axis to the circumferential surface of this hollow body.
  • the respective circumferential speeds of the hollow body and printing blanket or segment wheel are therefore synchronized with one another, the z. B. held on one of the mandrels of the mandrel wheel to be printed hollow body z. B. starting from its first point of contact with the printing blanket in question during the unwinding of its lateral surface over a distance from the first z. B.
  • the segment wheel carrying the blanket in question is the z. B. on the respective mandrel of the mandrel wheel to be set circumferential speed.
  • the peripheral speed of the printing forme cylinder carrying the printing form or of the plate cylinder carrying the printing block is or is preferably depending on the peripheral speed, for. B. des Segment wheel set.
  • the mandrel wheel and the segment wheel are each driven individually by their own drive and their respective rotational behavior is controlled or regulated by a control unit.
  • FIG. 1 shows in a simplified schematic representation and by way of example a generic device for printing or for decorating hollow bodies 01, in particular each having a preferably cylindrical outer surface, e.g. B. two-part cans 01, these hollow bodies 01 with a conveyor sequentially the z. B. supplied as a rotating or at least rotatable feed wheel, in particular designed as a mandrel wheel 02 transport device and held there individually on a holder on this transport device.
  • this transport device is preferably designed as a mandrel wheel 02.
  • a printing ink-transmitting device e.g. B. a rotating or at least rotatable segment wheel 03 together, along the or the circumference of which several printing blankets are arranged one behind the other.
  • a plurality of printing forme cylinders are provided along its circumference that are radially adjusted or at least adjustable against this segment wheel 03, with a printing forme, in particular a printing block, being arranged on the respective outer surface of this printing forme cylinder or plate cylinder 04, with this printing block is designed in particular to carry out a letterpress process.
  • a specific printing ink is supplied to each of the printing forme cylinders or plate cylinders 04 by means of an inking unit 06 in order to color its printing forme or printing cliché.
  • the printing forme cylinders are each used as a at least one plate cylinder 04 carrying printing plates are formed.
  • Fig. 2 and 3 show in a simplified schematic representation some details of the inking unit 06 cooperating with a plate cylinder 04, which z. B. for use in the in Fig. 1
  • the device shown is provided for printing or for decorating, in particular, hollow bodies 01 each having a preferably cylindrical outer surface.
  • the inking unit 06 proposed here advantageously has a very short, in particular two-roller, roller train consisting of only a few, preferably a maximum of five rollers, for the ink transport from an ink reservoir to the plate cylinder 04 in question. In the case of the two-roller roller train, this roller train consists only of a single inking roller 07 and an anilox roller 08.
  • FIG. 2 shows an example of a (short) inking unit 06 with a two-roller roller train in a first operating position in which the inking roller 07 and the anilox roller 08 are positioned against each other, the inking roller 07 is positioned against the plate cylinder 04 and the plate cylinder 04 is also positioned radially against the printing ink from the plate cylinder 04 are employed on the outer surface of the respective hollow body 01 transmitting device, in particular on the segment gear 03.
  • Fig. 3 shows, however, for that in the Fig.
  • the inking unit 06 shown has a second operating position in which the inking roller 07 and the anilox roller 08 are switched off from one another, the inking roller 07 is switched off from the plate cylinder 04 and the plate cylinder 04 is also switched off from the device transmitting the printing ink, in particular from the segmented wheel 03.
  • the on and off mechanism will be discussed later.
  • the plate cylinder 04 and the anilox roller 08 are z. B. each independently from a motor 11; 12 driven in rotation, in particular in the case of the one preferably used in the Fig. 2 and 3 illustrated inking unit 06, the relevant motor 11; 12 z. B. in its respective speed of a z. B. electronic control unit in particular regulated or at least controllable.
  • the z. B. designed as a segment wheel 03 printing ink-transmitting device is rotatively driven by its own drive.
  • the inking roller 07 is or will be rotatively 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 forme, in particular at least one plate cylinder 04 carrying at least one printing block are equal in terms of amount.
  • At least one printing block is arranged or at least can be arranged on the lateral surface of the plate cylinder 04, so that in the embodiment with the same external diameters d04; d07, the plate cylinder 04 carrying the printing block and the inking roller 07 each have an identical circumferential length.
  • the inking roller 07 in the first operating position of the inking unit 06 which interacts with the plate cylinder 04, in which the inking roller 07 and the anilox roller 08 are positioned against one another, the inking roller 07 is positioned on the plate cylinder 04 and the plate cylinder 04 is also positioned on the segmented wheel 03, at least the respective centers of the plate cylinder 04, the inking roller 07 and the anilox roller 08 are arranged along the same straight line G.
  • a detection device z. B. is provided in the form of a rotary encoder, this rotary encoder in particular being rigidly connected to a shaft of the inking roller 07.
  • the signal generated by the rotary encoder when the inking roller 07 rotates is used by the control unit to set the speed of the inking roller 07 by means of the rotation of the anilox roller 08 or, if necessary, to track it in such a way that the plate cylinder 04 and the inking roller 07 are synchronized or is set so that the peripheral speed of the inking roller 07 corresponds to the peripheral speed of the plate cylinder 04 within previously defined permissible tolerance limits.
  • the control unit preferably adjusts the circumferential speed of the anilox roller 08 during the setting phase carried out by it in such a way that it is particularly brief compared to the circumferential speed of the plate cylinder 04 - and thus not permanent - has a lead or lag.
  • the plate cylinder 04 and inking roller 07 By designing the plate cylinder 04 and inking roller 07 with the same circumferential length in terms of amount and by setting the synchronism between the plate cylinder 04 and the inking roller 07, the effect of stenciling, which is detrimental to the printing quality, is largely avoided.
  • the drive concept described here with a friction-driven inking roller 07 also has the advantage that a separate drive is not required for the inking roller 07, which saves costs.
  • an exchange of the inking roller 07 facilitates maintenance or repair work.
  • the inking roller 07 has a closed, preferably rubberized, lateral surface.
  • the anilox roller 08 has a z. B. coated with a ceramic shell surface, with a hashur of z. B. 60, 80 or 100 lines per centimeter of axial length of the anilox roller 08 or a cell structure is formed.
  • the outer diameter d08 of the anilox roller 08 is preferably larger than the outer diameter d07 of the inking roller 07 have the largest possible delivery volume.
  • the respective direction of rotation of the segmented wheel 03, the plate cylinder 04, the inking roller 07 and the anilox roller 08 is indicated by an arrow indicating the direction of rotation.
  • At least the anilox roller 08 has a temperature control device, with the aid of which the jacket surface of the anilox roller 08 is tempered.
  • the temperature control of the anilox roller 08 works z. B. with a introduced into the interior of the anilox roller 08 temperature control fluid, the temperature control fluid z. B. is water or another liquid coolant.
  • the temperature control device of the anilox roller 08 With the temperature control device of the anilox roller 08, the delivery volume of the anilox roller 08 can be influenced, since the viscosity of the from Inking unit 06 to be transported printing ink is influenced.
  • a thickness of a color film to be applied to the cylindrical outer surface of the hollow body 01 to be printed and formed by the printing ink is e.g. B. at less than 10 microns, in particular in a range of about 2 microns to 3 microns.
  • the ink reservoir of the inking unit 06 is z. B. designed as a chamber doctor blade system 09 acting in conjunction with the anilox roller 08.
  • a chamber doctor blade system 09 acting in conjunction with the anilox roller 08.
  • this chamber doctor blade system 09 at least one ink trough, a doctor beam that is set axially parallel to the anilox roller 08 or at least adjustable, and preferably also a pump for conveying the printing ink form a single structural unit.
  • This chamber doctor blade system 09 is in the inking unit 06, ie on a frame of the inking unit 06, preferably only on one side z. B.
  • This structural unit of the chamber doctor blade system 09 preferably forms a cantilever arm on a side frame of the inking unit 06.
  • Fig. 4 shows in a perspective illustration the chambered doctor blade system 09, which is designed as a single structural unit, in cooperation with the anilox roller 08 of the inking unit 06.
  • the anilox roller 08 After the anilox roller 08 has received printing ink from the ink reservoir, ie in particular from the chamber doctor blade system 09, the anilox roller 08 transports this printing ink directly and via further rollers of the roller train belonging to the inking unit 06 to the preferably only one inking roller 07.
  • the area between the chambered doctor blade system 09 following the chambered doctor blade system 09 positioned against the anilox roller 08 and the inking roller 07 is preferably a rider roller 13 set against the anilox roller 08 or at least adjustable in order to improve the ink transport of the anilox roller 08.
  • the rider roller 13 is arranged axially parallel to the anilox roller 08.
  • the rider roller 13 is not regarded as belonging to the roller train of the inking unit 06, since it does not transfer any printing ink from the anilox roller 08 to another roller.
  • the from the anilox roller 08 z. B. rotatively driven by friction rider roller 13 has z. B. a rubberized outer surface.
  • the rider roller 13 employed on the anilox roller 08 sucks some of the printing ink picked up by the anilox roller 08 from the chamber doctor blade system 09 from the hash or the cells of the anilox roller 08 and at least partially applies this printing ink to the surface of the anilox roller 08 when it rolls on the surface of the anilox roller 08 Anilox roller 08 formed webs.
  • a temperature control device having anilox roller 08 also improves the effectiveness of a control of the ink density in that the rider roller 13 rolling on the anilox roller 08 contributes to the provision of a larger amount of printing ink.
  • the rider roller 13 rolling on the anilox roller 08 reduces both density differences that can arise from manufacturing tolerances of the anilox roller 08 and the risk of the hash or cells of the anilox roller 08 being visible on the printing material, that is to say here on the outer surface of the hollow body 01 to be printed as a result of an insufficiently applied ink at least in places.
  • a plate changer 14 is provided for each printing forme cylinder, in particular plate cylinder 04, with which the printing forme intended for the respective printing forme cylinder or the printing cliché intended for the respective plate cylinder 04 within z. B. the device concerned is preferably automatically exchangeable for printing or for decorating hollow bodies 01 each having an in particular cylindrical outer surface.
  • the Fig. 5 and 6th show in a perspective representation a preferred embodiment of a very advantageously designed plate changer 14 in two different operating positions for carrying out a plate change or printing forme change that can be performed automatically, reliably and preferably in register in a very short set-up time.
  • FIG. 5 shows a first operating position, in the axially laterally next to the printing unit on the printing forme cylinder or plate changer 14 z. B. presented a printing block or can be removed from the plate changer 14.
  • Fig. 6 shows a second operating position in which immediately in front of the printing forme cylinder or plate cylinder 04 along this from the plate changer 14 from z. B. a printing block placed directly on the associated plate cylinder 04 or a printing block removed from the plate cylinder 04 and removed with the plate changer 14 in its first operating position.
  • the disk changer 14 has a particularly planar, z. B. table-shaped support surface 16 on which z. B. arranged or to be arranged on the plate cylinder 04 printing cliché can preferably be placed completely.
  • the support surface 16 is preferably linearly movable along a transport path, in particular along the axis of rotation of the associated printing forme cylinder or plate cylinder 04 between at least two defined positions, bi-directionally movable, ie arranged to be movable back and forth.
  • the plate changer 14 In a first position of the support surface 16 located laterally next to the printing unit, the plate changer 14 assumes its first operating position, in a second position of the support surface 16 located directly in front of the printing forme cylinder or plate cylinder 04 longitudinally to it, its second operating position. In the first operating position, the support surface 16 of the plate changer 14 is at least partially in front of an end face of the relevant printing forme cylinder or plate cylinder 04.
  • the support surface 16 of the plate changer 14 is preferably at least partially below the outer surface of the printing forme cylinder or plate cylinder 04.
  • the movement of the support surface 16 of the plate changer 14 takes place z. B. along a cross member 17 arranged longitudinally to the printing forme cylinder or plate cylinder 04.
  • the movement of the support surface 16 is e.g. B. each limited by a stop.
  • At least the carrier of the printing block in question is z. B. formed by a trimming carried out in particular using registration marks in such a way that the relevant printing block can be arranged in register on the support surface 16 of the plate changer 14.
  • At least two edges of the carrier of the printing cliché in question are brought into contact with stops arranged on the support surface 16 of the plate changer 14, in particular formed by register pins, a first edge of the carrier of the printing cliché in question being in contact with a first register pin and a second edge, orthogonal to the first edge, of the carrier of the relevant printing cliché strikes a second register pin, one of these two register pins being changeable and preferably adjustable in its position.
  • the relevant printing plate can be aligned in register.
  • the adjustment of the index pin which can be changed in its position, can be done manually or automatically. Since the printing cliché is fed to the plate cylinder 04 concerned in register, the plate cylinder 04 z. B. no centering pin and no other register device is provided.
  • the disk changer 14 has in its preferred embodiment, in addition to the support surface 16 for receiving a z. B. the plate cylinder 04 in particular in register to be supplied printing plates z. B. a subject in which z. B. a printing block removed from the plate cylinder 04 can be stored.
  • a z. B. by means of its carrier in particular magnetically held on the lateral surface of the plate cylinder 04 in question printing cliché is z. B. guided by means of a tangential to the printing form Tool, e.g. B. by means of a guided between the carrier of the printing cliché and the surface of the plate cylinder 04 in question is lifted from the surface of the plate cylinder 04 in question or is at least liftable from there.
  • the one end of the relevant printing block lifted from the lateral surface of the relevant plate cylinder 04 is introduced into the relevant compartment of the plate cylinder 04 by rotating the relevant plate cylinder 04.
  • the entire printing block detached from the outer surface of the plate cylinder 04 in question is pushed into the compartment of the plate changer 14 in question.
  • a printing block to be fed to the plate cylinder 04 in question, preferably in register, is held on the support surface 16 of the plate changer 14 by a magnetic holding force, in particular after it has been aligned in register.
  • It is at least one stamp preferably two stamps arranged at a distance in the longitudinal direction of the plate cylinder 04 concerned, each with a stamp directed opposite to the magnetic holding force, towards the support surface 16 of the plate changer 14, for example.
  • B. essentially orthogonal effective direction is provided, with which at least one stamp at least one end of the printing cliché held on the support surface 16 of the plate changer 14 facing the relevant plate cylinder 04 can be detached from this support surface 16 and transferred to the relevant plate cylinder 04 due to a lifting movement of the at least one stamp is.
  • the at least one stamp is z.
  • magnets are used, these magnets each preferably being designed as a permanent magnet.
  • the previously described configuration of the plate cylinder 04 has the advantage that a conveyor device for transferring the printing cliché to the relevant plate cylinder 04 or for removing the printing cliché from the relevant plate cylinder 04 is not required and the plate changer 14 is therefore very much can be implemented inexpensively. In particular, a plate change can be carried out automatically with the plate changer 14 described above.
  • the printing forme cylinder or plate cylinder 04 is in particular mounted at both ends on a load arm of a preferably one-sided first lever arrangement 18 consisting of a force arm and the load arm, the force arm and the load arm of this first lever arrangement 18 arranged at an angle to the force arm together around an axis parallel to the Plate cylinder 04 directed first axis of rotation 19 are pivotable.
  • B. arranged in the form of a hydraulic or pneumatic working cylinder, whereby when this first drive 21 is actuated, depending on its direction of action, the printing forme cylinder or plate cylinder 04 arranged on the load arm of this first lever arrangement 18 is either supported by a printing blanket z.
  • the segment wheel 03 is turned off or employed at the same. To limit the pressure from the printing forme cylinder or plate cylinder 04 against the printing blanket in question z. B.
  • a first stop 22 is provided, for example, for the power arm of the first lever arrangement 18, by means of which a path covered by the pivoting movement of the printing forme cylinder or plate cylinder 04 against the segmented wheel 03 is limited.
  • the contact pressure exerted by the printing forme cylinder or plate cylinder 04 against the segmented wheel 03 is set or at least adjustable.
  • the inking roller 07 is also, in particular at both ends on a load arm, one consisting of a force arm and the load arm
  • the second lever arrangement 23 is preferably mounted on one side, the force arm and the load arm of this second lever arrangement 23 being jointly pivotable about the first axis of rotation 19, which is axially parallel to the plate cylinder 04.
  • the anilox roller 08 is also mounted, in particular at both ends, on a load arm of a preferably one-sided third lever arrangement 24 consisting of a force arm and the load arm, the force arm and the load arm of this third lever arrangement 24 together around a second axis of rotation directed axially parallel to the anilox roller 08 26 are pivotable, the second axis of rotation 26 of the third lever arrangement 24 being arranged on the second lever arrangement 23, the second axis of rotation 26 being designed to be stationary on the second lever arrangement 23.
  • a preferably controllable second drive 27 which, when it is actuated, acts on the force arm of the second lever arrangement 23, by means of which the inking roller 07 can be adjusted to or from the plate cylinder 04 depending on the direction of action of the second drive 27.
  • a preferably controllable third drive 28 which, when it is actuated, acts on the force arm of the third lever arrangement 24, by means of which the anilox roller 08, preferably together with the chamber doctor blade system 09, can be adjusted to or from the inking roller 07 depending on the direction of action of the third drive 28 this can be turned off.
  • the second drive 27 and / or the third drive 28 are each z. B.
  • the pivoting movement of the load arm of the second lever assembly 23 is e.g. B. limited by a preferably adjustable, in particular adjustable by an eccentric first stop system 29, whereby the contact pressure exerted by the inking roller 07 against the printing forme cylinder or plate cylinder 04 is limited or at least limited.
  • the pivoting movement of the load arm of the third lever assembly 24 is e.g. B. limited by a preferably adjustable, in particular adjustable by an eccentric second stop system 31, whereby the contact pressure exerted by the anilox roller 08 against the inking roller 07 is limited or at least can be limited.
  • Fig. 2 shows an example of a first operating state in which the first drive 21 and the second drive 27 and the third drive 28 are each inactive or in their idle state, whereby the anilox roller 08 to the inking roller 07 and the inking roller 07 to the printing forme cylinder or plate cylinder 04 and the printing forme cylinder or plate cylinder 04 are each employed on the segment wheel 03.
  • Fig. 3 shows an example of a second operating state in which the first drive 21 and the second drive 27 and the third drive 28 are each actuated and thus in their respective working state, whereby the anilox roller 08 from the inking roller 07 and the inking roller 07 from the printing forme cylinder or plate cylinder 04 and the printing forme cylinder or plate cylinder 04 are each switched off from the segment wheel 03.
  • the respective power 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 either the printing forme cylinder or plate cylinder 04 or the inking roller 07 or the anilox roller 08 is arranged in the respective assignment described above.
  • the three aforementioned lever assemblies 18; 23; 24 are each arranged in different vertical planes spaced from one another, so that they do not interfere with one another in their respective pivotability.
  • each of these printing blankets 33 to be arranged on the segment wheel 03 is in each case on a preferably flat, tabular metal carrier with a material thickness of, for. B. 0.2 mm cohesively, in particular applied by an adhesive bond.
  • the respective, preferably magnetizable, metal carrier is then, together with the printing blanket 33 arranged on it, on one of the segments 32 on the circumference of the segment wheel 03, for. B. arranged in the correct position by at least one holding magnet provided there on the circumference for each printing blanket 33 or its carrier.
  • an acute-angled suspension leg 38 is provided, this suspension leg 38 when the respective metal carrier is arranged on one of the segments 32 on the circumference of the segmented wheel 03 into one on the circumference of this segmented wheel 03 parallel to the axis of rotation 34 directed z.
  • B. formed as a groove recess 36 engages and on one in the direction of rotation of the segment wheel 03 leading edge 39 of the relevant recess 36 comes into contact in particular in a form-fitting manner.
  • the printing blankets 33 are each preferably designed as a rubber blanket.
  • the direction of rotation of the segmented wheel 03 carried out during the printing process is in the Fig. 13 indicated by a direction of rotation arrow.
  • the hollow bodies 01 which are brought up to the segmented wheel 03 by the mandrel wheel 02 rotating around the axis of rotation 41 on a mandrel, are individually and briefly one after the other in the printing process, i.e. for a single rotation of the hollow body 01 to be printed on relevant currently printing blanket 33 pressed on.
  • the device for automatically changing the printing blankets 33 is preferably of modular construction and, as in FIG Figures 7 to 12 shown as an example - as modules z. B. a memory device 42 for several, z. B. up to twelve printing blankets 33 ( Fig. 7 ) and a device 43 for vertical transport of the aforementioned storage device 42 ( Fig. 8 ) and a device 44 for the horizontal transport of one of the printing blankets 33 between the storage device 42 and an assembly location on the segmented wheel 03 ( Fig. 9 ).
  • the Fig. 10 shows the storage device 42 in its operating state arranged on the device 43 provided for its vertical transport.
  • the storage device 42 has in a preferably cuboidal housing several vertically stacked compartments in each of which a single printing blanket 33 is stored on its back, ie lying on its carrier, preferably in a horizontal orientation, wherein in the housing z. B. at least as many compartments are provided as the associated segment wheel 03 has segments 32 for printing blankets 33 on its circumference.
  • the subjects are each z. B. open at least on one of its long sides in order to enable the respective blanket 33 to be fed in or removed from the open side of the respective compartment.
  • This storage device 42 is preferably on or on a carrier of the device 43 for the vertical transport of this storage device 42 as a light, z. B. tool-free replaceable module attached or at least attachable.
  • the device 43 for the vertical transport of the storage device 42 is z. B. designed executing a lifting movement, the vertical travel z. B. is about 200 mm.
  • the lifting movement of the device 43 for the vertical transport of the storage device 42 is z. B. carried out by means of a preferably driven by an electric motor trapezoidal thread spindle.
  • a device 44 for the horizontal transport of these printing blankets 33 is provided in order to transport the individual printing blankets 33 between the storage device 42 and an assembly location on a segment 32 of the segmented wheel 03.
  • This device 44 for the horizontal transport of the printing blankets 33 has, for. B.
  • a carriage 46 which can be moved bidirectionally, in particular linearly, between two end points, an individual printing blanket 33 being transported with the carriage 46 or at least being able to be transported.
  • a blanket 33 automatically removed from the storage device 42 is preferably lying on its back on the carriage 46 against a z. B. is transported under the segmented wheel 03 assembly location and taken up there by a segment 32 of the segmented wheel 03.
  • a blanket 33 to be removed from a segment 32 of the segmented wheel 03 is preferably peeled off from the relevant segment 32 with a spatula 47 that is set against the relevant segment 32 or at least that can be set there and from its dismantling location on the circumference of the segmented wheel 03, for. B.
  • the spatula 47 employed at an acute angle or tangentially to the relevant segment 32 of the segment wheel 03 in connection with a rotary movement of the segment wheel 03 directed against the spatula 47 in the preferred embodiment in particular, metal carrier of the relevant printing blanket 33, which is held magnetically on the circumference of the segmented wheel 03, lifts off the relevant segment 32 and thus from the circumference of this segmented wheel 03.
  • the spatula 47 is shown both in an operating position set against the relevant segment 32 of the segmented wheel 03 and in a parked operating position, these operating positions being assumed alternatively.
  • the renewal or replacement of at least one of the printing blankets 33 arranged on the circumference of the segmented wheel 03 is then preferably carried out as follows:
  • the segment wheel 03 conveys a printing blanket 33, which is arranged on its circumference, and is to be removed, into an angular position at which this printing blanket 33 can be dismantled with the device for automatically changing the printing blankets 33.
  • the slide 46 of the device 44 for the horizontal transport of the printing blankets 33 moves along its travel path to that end point which is closest to the dismantling location of the printing blanket 33 to be removed.
  • This position of the carriage 46 is preferably monitored by sensors and / or by a first switching element 48, e.g. B. by an inductive or capacitive proximity switch.
  • the spatula 47 is preferably positioned on the edge 37 of the metal support of the relevant printing blanket 33 to be removed, which is trailing in the direction of rotation of the segmented wheel 03.
  • the printing blanket 33 which is preferably held magnetically on the circumference of the segmented wheel 03, is peeled off from the circumference of this segmented wheel 03, i.e. the metal carrier of the printing blanket 33 is lifted from its support on the segmented wheel 03 .
  • the spatula 47 is then placed back from the circumference of the segmented wheel 03.
  • the printing blanket 33 released from the relevant segment 32 of the segmented wheel 03 then falls due to gravity either directly into a storage device for worn printing blankets 33 or is transported to this storage device for worn printing blankets by means of the carriage 46 of the device 44 for the horizontal transport of the printing blankets 33.
  • this storage device 42 is preferably arranged in a raised upper position by the device 43 for their vertical transport.
  • the slide 46 of the device 44 for the horizontal transport of one of the printing blankets 33 between the storage device 42 and the installation location on the segmented wheel 03 is arranged below the compartment with the new printing blanket 33.
  • the new printing blanket 33 is deposited on the carriage 46 of the device 44 for horizontal transport. It is preferably sensory and / or by a second switching element 49, for. B.
  • the slide 46 of the device 44 for the horizontal transport of the printing blankets 33 moves along its travel path to the end point which is closest to the installation location of the new printing blanket 33, this position of the slide 46 in turn preferably being sensory and / or is monitored by a third switching element 51, e.g. B. by an inductive or capacitive proximity switch.
  • the segment wheel 03 is also already in an angular position suitable for receiving the new printing blanket 33, this angular position being e.g. B.
  • this drive z. B. is designed as a compressed air cylinder.
  • this segmented wheel 03 rotates in its direction of rotation carried out during the printing process and thereby takes the new printing blanket 33 on its circumference.
  • the carriage 46 of the device 44 for the horizontal transport of the printing blankets 33 is moved back to the storage device 42 for the several new printing blankets 33 in order to to fetch another new blanket 33 if necessary.
  • this device has a segment wheel 03 rotatable about an axis of rotation 34, the segment wheel 03 having several segments 32 one behind the other on its circumference, each for receiving a printing blanket 33 comprises, at least one of the printing blankets 33 arranged on one of the segments 32 being arranged to roll or at least roll off the hollow body 01 to be printed.
  • Several printing units are provided, with at least one of the printing units being engaged or at least being able to be engaged against at least one of the printing blankets 33 arranged on the circumference of the segmented wheel 03.
  • At least one of the printing units has a printing forme cylinder 04, with a plate changer 14 for automatically changing a printing forme on this printing forme cylinder 04 being arranged in association with the printing forme cylinder 04, and with a device for automatically changing at least one of the am Circumference of this segment wheel 03 arranged printing blankets 33 is arranged.
  • the plate changer 14 preferably has a support surface 16 on which the printing form to be arranged or arranged on the printing forme cylinder 04 is placed or at least can be placed, this support surface 16 being movable bidirectionally along a transport path between at least two defined positions.
  • the printing forme to be supplied to the printing forme cylinder 04 is z. B. held on the support surface 16 of the disk changer 14 by a magnetic holding force.
  • the device for automatically changing the printing blankets 33 has a particularly modular structure, with a storage device 42 for several printing blankets 33 as well as a device 43 for vertical transport of this storage device 42 and a device 44 for horizontal transport of one of the printing blankets 33 between of the storage device 42 and one of the segments 32 of the segment wheel 03.
  • the storage device 42 has a plurality of compartments arranged vertically one above the other in a housing, in each of which one individual blanket 33 is stored or at least storable.
  • the printing blankets 33 are each stored in the storage device 42 preferably lying on their backs and / or in a horizontal orientation.
  • the device 43 for the vertical transport of the storage device 42 is z. B.
  • executing a lifting movement and / or the device 44 for the horizontal transport of the printing blankets 33 has a carriage 46 that can be moved bidirectionally between two end points, a single printing blanket 33 being transported or at least transportable with the carriage 46.
  • the plate changer 14 and the device for automatically changing the printing blankets 33 are, for. B. each controlled by a control unit, the plate changer 14 and the device for automatically changing the blankets 33 each z. B. are active at the same time, ie carry out their respective change of a printing form or a printing blanket 33 during the same interruption of production of this device for printing hollow bodies 01.
  • the printing forme to be arranged on the printing forme cylinder 04 is preferably in register with regard to its mounting position on the printing forme cylinder 04 on the support surface 16 of the plate changer 14 and / or the printing blanket 33 to be arranged on the circumference of the segment wheel 03 is on the carriage 46 of the device 44 for the horizontal transport of the Printing blankets 33 arranged in the correct position with regard to its mounting position on a segment 32 of the segment wheel 03.
  • An inking unit 06 which transports printing ink to the printing forme cylinder 04 is preferably designed as a short inking unit having an anilox roller 08.
  • a device for printing hollow bodies 01 which has a segment wheel 03 rotatable about an axis of rotation 34, the segment wheel 03 having several segments 32 one behind the other on its circumference, each for receiving a printing blanket 33, at least one of which is arranged on one of the segments 32
  • Printing blankets 33 are arranged to roll or at least roll off the hollow body 01 to be printed, with adjacent segments 32 each passing through a recess 36 directed parallel to the axis of rotation 34 of the segment wheel 03 are separated from one another
  • each of the printing blankets 33 is arranged on a plate-shaped metallic carrier, the carrier together with the printing blanket 33 arranged on it as such being arranged or at least changeable as such on one of the segments 32 of the segmented wheel 03 is, the carrier arranged on one of the segments 32 of the segment wheel 03 being held on this segment 32 in a form fit and / or in a force fit.
  • Each carrier of a printing blanket 33 is preferably bent at an acute angle at its leading edge 37 in the direction of rotation of the segmented wheel 03, this bevel 38, in the operating state of this carrier arranged on a segment 32 of the segmented wheel 03, against an leading edge 39 of the relevant am in the direction of rotation of the segmented wheel 03 Circumference of the segment wheel 03 formed recess 36 is applied, wherein the bevel 38 of the carrier is arranged on this edge 39 of the recess 36 in a form fit or at least can be arranged.
  • the plate-shaped metallic carrier is designed to be particularly flexible and, together with the printing blanket 33 arranged on it, forms e.g. B. a metal blanket.
  • the carrier arranged on one of the segments 32 of the segment wheel 03 is held on this segment 32 by a magnetic force.
  • On the circumference of the segment gear 03 are one behind the other z. B. eight to twelve segments 32 are each arranged to receive a blanket 33.
  • a device for automatically changing the printing blankets 33 is provided, the device for automatically changing the printing blankets 33 is preferably modular and as modules a storage device 42 for several printing blankets 33 and a device 43 for vertical transport of the aforementioned storage device 42 and a device 44 for horizontal transport of one of the printing blankets 33 between the storage device 42 and one of the segments 32 of the segment wheel 03.
  • the storage device 42 has in a housing in particular a plurality of compartments arranged vertically one above the other, in each of which an individual printing blanket 33 is stored or at least can be stored.
  • the housing of the storage device 42 for. B. at least as many compartments are provided as the associated segment gear 03 has segments 32 for printing blankets 33 on its circumference.
  • the device 43 for the vertical transport of the storage device 42 is designed to perform a lifting movement and / or the device 44 for the horizontal transport of the printing blankets 33 has a carriage 46 that can be moved bidirectionally between two end points, with one carriage 46 each individual blanket 33 is transported or at least is transportable.
  • a method for operating a device having a segment wheel 03 for printing hollow bodies 01 a printing blanket 33 being arranged on at least one segment 32 of the segment wheel 03 having several segments 32 one behind the other on its circumference, at least one being on one of the Segments 32 arranged printing blanket 33 rolls during a rotation of the segment wheel 03 on the hollow body 01 to be printed, a device provided in association with the segment wheel 03 for the automatic changing of printing blankets 33 according to a command given to its control unit that on the relevant segment 32 of the segment wheel 03 automatically removes the printing blanket 33 to be arranged from a storage device 42 and transports it to the relevant segment 32 of the segment wheel 03.
  • the device for automatically changing printing blankets 33 has a device 44 for horizontal transport of the printing blankets 33 with a movable carriage 46, the printing blankets 33 to be transported being transported lying on the carriage 46.
  • a printing blanket 33 lying on the carriage 46 is preferably arranged in the correct position with regard to an assembly position on one of the segments 32 of the segment wheel 03.
  • a plurality of printing blankets 33 are stored in the storage device 42, the printing blankets 33 each being deposited one by one on the carriage 46 of the device 44 for the horizontal transport of the printing blankets 33 and being transported one after the other to one of the segments 32 of the segmented wheel 03.
  • a printing blanket 33 to be arranged on one of the segments 32 of the segment wheel 03 is in particular provided by a blanket 33 when this segment wheel 03 rotates between the relevant segment 32 and the printing blanket 33 produced form fit on the relevant segment 32 arranged.
  • a arranged on one of the segments 32 of the segment wheel 03 printing blanket 33 is preferably by a z. B. magnetic frictional connection held on the segment 32 concerned.
  • a printing blanket 33 removed from one of the segments 32 of the segmented wheel 03 is likewise preferably transported away from the relevant segmented wheel 03 with the device 44 for the horizontal transport of the printing blankets 33.
  • the device 44 for the horizontal transport of the printing blankets 33 alternately transports away a printing blanket 33 removed from one of the segments 32 of the segmented wheel 03 and a new, ie unused, printing blanket 33 from the storage device 42 to a free segment 32 of the segmented wheel 03 transported, ie to a segment 32 on which no printing blanket 33 is currently arranged.
  • a switching element 49 z. B. monitors whether a blanket 33 to be removed or removed from the storage device 42 has actually and / or correctly positioned on the carriage 46 of the device 44 for horizontal transport.
  • Fig. 14 shows in a perspective view again the segment wheel 03 of the device for printing hollow bodies 01, with several, z. B. twelve segments 32 for receiving one blanket 33 each are arranged.
  • This segment wheel 03 is preferably made of a casting material, for. B. made of cast iron, and has a mass of z. B. more than 500 kg, in particular from about 1,000 kg or more.
  • the segment wheel 03 has an outer diameter in the range of, for. B. 1,400 mm to 1,600 mm.
  • the segment wheel 03 is with its shaft 53 in a frame 66 of this device for printing hollow bodies 01 preferably at both ends z. B. each stored in particular double-row rolling bearings 63 and rotatively driven by a drive.
  • This drive which rotatively drives the segmented wheel 03, is designed as an electric motor 58 with a stator 61 and a rotor 62 having a hollow shaft 54, the hollow shaft 54 being arranged or at least coaxially to the shaft 53 of the segmented wheel 03 can be arranged.
  • the shaft 53 of the segmented wheel 03 protrudes into the installation space of the motor 58 and the shaft 53 of the segmented wheel 03 and the rotor 62 of the motor 58 are rigidly connected to one another.
  • the segment gear 03 is preferably on both sides z. B.
  • the motor 58 provided for the rotary drive of the segmented wheel 03 is preferably designed as a multi-pole, electrical direct drive with a number of poles greater than twenty and / or as a permanently excited brushless DC motor and is exemplified in FIG Fig. 15 shown in perspective.
  • This motor 58 has, for. B. a cooling device or is at least connected to such, wherein the cooling device is designed as a liquid cooling.
  • Fig. 15 shows two connections formed on the housing 59 of the motor 58 for this liquid cooling, namely one connection for the coolant inflow 56 and another connection for the coolant outflow 57.
  • this motor 58 is designed as a torque motor.
  • a preferably digital control unit controlling or regulating it is provided for this motor 58, whereby the control unit, by positioning the shaft 53 of the segmented wheel 03 in the stator of the motor 58, sets a position on the circumference of this segmented wheel 03 relative to a position on the outer surface of one to be printed Hollow body 01 is preferably set or at least adjustable with a positioning accuracy of less than 0.1 mm.
  • z. B. at the end of the shaft 53 opposite the motor 58, a rotary encoder 64 is provided, the rotary encoder 64 having a high angular resolution of z. B.
  • the motor 58 and / or the rotary encoder are preferably each connected to the control unit controlling or regulating the motor 58 via a data bus, in particular a control bus.
  • the aforementioned embodiment of the rotary drive of the segmented wheel 03 has the advantage that this drive is designed to be decentralized, gearless and clutchless. This drive of the segment wheel 03 is therefore compact and free of play.
  • a position on the circumference of this segmented wheel 03 relative to a position on the outer surface of a hollow body 01 to be printed can easily be set with a positioning accuracy of less than 0.1 mm, which has a very advantageous effect on the achievable print quality .
  • this segmented wheel 03 runs very well, which ensures a uniform transfer of ink from the respective inking units 06 to the relevant printing blankets 33 arranged on the circumference of the segmented wheel 03.
  • the proposed drive for the segment gear 03 also has the advantage of being low-noise and low-maintenance. Overall, this results in a very efficient drive for the segment gear 03.
  • Fig. 17 shows again that i. V. m.
  • the segmented wheel 03 which is mounted in the frame 66 of the device for printing hollow bodies during the printing process, has a segment wheel 03 preferably made of a metallic material, e.g. B. made of a welded structure or made of cast iron base body 68, with several, z. B. twelve segments 32 along the circumference of the base body 68 are each arranged at a joint 69, in particular at a distance from one another, or at least can be arranged.
  • a metallic material e.g. B. made of a welded structure or made of cast iron base body 68
  • the segment wheel 03 is accordingly not designed in one piece, with segments 32 already molded on, but these segments 32 each form a separate machine element that can be separated from the base body 68 and are arranged on the base body 68 such that they can be changed. Each of these segments 32 is - as before in the same way - suitable for receiving a printing blanket 33 in the manner already described.
  • segment wheel 03 interchangeable segments 32 is that, for. B. when changing the machine arrangement to a production of hollow bodies 01 other format, z. B. on cans with a compared to the current production shorter or longer can height and / or a different can diameter, an adjustment in the format of the blankets 33 required for printing is easier and faster.
  • a machine arrangement with a segment wheel 03 with already molded segments 32 when the production is switched to hollow bodies 01 of a different format, the entire segment wheel 03 has to be replaced, which in view of the usual size with an outer diameter in the range of, for. B. 1,400 mm to 1,600 mm and / or the usual mass of the segment wheel 03 of z. B. more than 500 kg, in particular more than 1,000 kg mean considerable effort and unacceptably long set-up times.
  • a segment wheel 03 In order to produce a print image of high print quality on hollow bodies 01 in the printing process, a segment wheel 03 must meet very high requirements for its concentricity, which means that such a segment wheel 03 can be processed with high precision, ie with low permissible manufacturing tolerances. In the case of a segmented wheel 03 with already molded segments 32, this is due to the relatively large outer diameter in the range of, for. B. 1,400 mm to 1,600 mm very complex and expensive.
  • the individual, interchangeable segments 32 are preferably designed to be finished ( Fig. 18 ).
  • the finished segments 32 only have to correspond to the desired outer diameter of the segment wheel 03 concerned with a high degree of accuracy in terms of their respective surface curvature.
  • the remaining geometries play a subordinate role in terms of tolerances.
  • the manufacturing tolerances of the external geometry are of subordinate importance. That in the Fig. 18 individual segment 32 shown as an example has z. B. at least one holding magnet 73 in order, after the assembly of this segment 32 on the base body 68 of the segment wheel 03, to hold a printing blanket 33 having a magnetizable metal carrier on the circumference of this segment wheel 03, in particular in the correct position.
  • the necessary high accuracy of the respective running surface of the printing blankets 33 in terms of concentricity and radius is achieved by a z. B. with the help of a rider jig 72 ( Fig. 14 ) achieved alignment process of the segments 32 with the base body 68 of the segment wheel 03 arranged in the machine arrangement and z. B. fixed by potting a compensation gap. Because at the relevant joint 69 between the respective segment 32 and the base body 68 there is in each case a Compensation gap formed with a joint lining arranged in the relevant compensation gap, the joint lining preferably as a z. B. low-viscosity casting material or is designed as a filler.
  • the respective segments 32 are thus in each case cast with a particularly precise fit at their joint 69 with the base body 68 of the segment wheel 03.
  • the compensation gap has a gap width of z. B. at least 1 mm up to z. B. 5 mm.
  • the segments 32 are each z. B. fixed to the base body 68 by at least one connecting element 71 and / or releasably connected to the base body 68.
  • the at least one connecting element 71 connecting the respective segment 32 to the base body 68 of the segment wheel 03 is z. B. designed as a cylinder screw or as a taper pin.
  • a joint lining is used for adapting and fitting machine parts with the highest accuracy requirements. It allows adjustment in the ⁇ m range without complex mechanical preparation and reworking. It has a high static compressive strength of z. B. 100 N / mm 2 and / or a contact ratio of z. B. 100%.
  • a joint lining has a very high adhesive force and hardens without any technically relevant shrinkage. Such a joint lining is z. B. offered by the company SKC Gleittechnik GmbH in D-96469 Rödental.
  • Fig. 19 shows, in a simplified and schematic manner, a device for printing hollow bodies 01, in which a plurality of hollow bodies 01 are fed sequentially to a conveyor wheel 76 and from there to a mandrel wheel 02 and then to a segment wheel 03 with a conveyor device 74 in the transport direction indicated by an arrow.
  • the conveyor wheel 76 and the mandrel wheel 02 are generally part of the decorator and form a device for sequentially feeding the hollow bodies 01 to the circumference of the segmented wheel 03.
  • B. eight or ten drivers and on the circumference of the mandrel wheel 02 are several, z.
  • B. 24 or 36 holding devices each for receiving one in cooperation with the Segment wheel 03 to be printed hollow body 01 is arranged.
  • each inking unit 06 is preferably designed as a short inking unit and z. B. has only a single inking roller 07 and an anilox roller 08.
  • On the circumference of the segmented gear 03 several, z. B. 12 printing blankets 33 are arranged, wherein a mandrel wheel 02 having 24 holding devices is set to rotate at half the speed in comparison to a segment wheel 03 with 12 segments 32.
  • Each of the circumference of the segment wheel 03 each arranged on a segment 32 printing blankets 33 is z. B.
  • the segment wheel 03 preferably has a base body 68, wherein the plurality of, for. B. twelve segments 32 along the circumference of the base body 68 are each arranged at a joint 69, in particular at a distance from one another, or at least can be arranged.
  • the segmented wheel 03 is therefore not made in one piece, with segments 32 already molded on, but the segments 32 each form a separate machine element that can be separated from the base body 68 B. arranged interchangeably by releasing at least one connecting element 71.
  • the drivers of the conveyor wheel 76 are, for. B.
  • the conveying wheel 76 is designed as a star wheel with a plurality of drivers, each in the form of pointed teeth, one in a space between adjacent prongs recorded hollow body 01 is conveyed during the rotation of the star wheel.
  • the mandrel wheel 02 and the conveyor wheel 76 each have their own drive 77, separate from the drive 58 of the segment wheel 03; 78 on.
  • the drive 58 of the segment wheel 03 and the drive 77 of the mandrel wheel 02 and the drive 78 of the conveyor wheel 76 are thus each controlled individually and independently of one another.
  • the drive 58 of the segmented wheel 03 and the drive 77 of the mandrel wheel 02 and the drive 78 of the conveyor wheel 76 are preferably connected to one another for data purposes by a common data bus 79.
  • This the drives 58; 77; 78 connecting preferably digitally designed data bus 79 is z. B. formed in a ring topology or in a star topology.
  • the data bus 79, z. B. designed as a central machine control control unit 82 by means of control data transported via the common data bus 79 at least both the drive 78 of the conveyor wheel 76 and the drive 77 of the mandrel wheel 02, preferably also the drive 58 of the segment wheel 03 and others, in particular all of this data bus 79 connected drives.
  • the drive 77 of the mandrel wheel 02 or the drive 58 of the segmented wheel 03 each set as a master, so that the other drives each align as slaves in their respective rotational behavior according to the previously set master.
  • the pair of angular positions in question ⁇ 1; ⁇ 2 forming angular positions ⁇ 1; ⁇ 2 remain unchanged during a respective rotation of the conveyor wheel 76 and mandrel wheel 02 with respect to the transfer position 81, preferably for all drivers of the conveyor wheel 76 and all holding devices on the circumference of the mandrel wheel 02, which at least during a production of the device for printing the hollow body 01 are to be positioned at the transfer position 81 which transfers the respective hollow body 01 from the conveyor wheel 76 to the mandrel wheel 02.
  • control data preferably include at least the respective speed of the shaft of the relevant drive 58; 77; 78 and at least one angular position to be assumed by its shaft.
  • This control data practice with reference to the decorator in question so z. B. the function of a virtual master axis.
  • At least the drive 77 of the mandrel wheel 02 and the drive 58 of the segmented wheel 03 and possibly also the drive 78 of the conveyor wheel 76 are each designed as an electrical direct motor drive controlled by the control unit 82 in its respective speed and position-regulated.
  • the drive 58 of the segment wheel 03 is z. B. designed as a torque motor.
  • At least the respective drives 58; 77; 78 from the conveyor wheel 76, mandrel wheel 02 and segment wheel 03 each have a z.
  • B. dedicated drive controller 83 each connected to the data bus 79 and assigned a dedicated power unit 84.
  • the z. B. by means of vacuum suction one after the other on one of the mandrels of the mandrel wheel 02 and then held by the mandrel 02 hollow body 01 are rotated in addition to the rotation of the mandrel wheel 02 by an independently executed or at least executable rotation by the mandrel, because each mandrel is around his respective longitudinal axis rotatable and in particular set or at least adjustable to a certain circumferential speed.
  • at least one hollow body 01, and preferably a plurality of hollow bodies 01 each held on one of the mandrels of the mandrel wheel 02 are provided their respective printing by means of at least one of the arranged on the circumference of the segment wheel 03 printing blankets 33 z. B.
  • This acceleration belt 86 preferably has its own of the drives 58; 77; 78 of the conveyor wheel 76, the mandrel wheel 02 and / or the segment wheel 03 separate, but z. B. also on the drive 87 connected to the data bus 79, the peripheral speed of the acceleration belt 86 being adjustable.
  • the peripheral speed of the acceleration belt 86 is thus determined by its drive 87 z. B. individually adjustable and / or changeable for each hollow body 01 depending on the requirements of the printing process.
  • the drive 87 of the acceleration belt 86 is z. B. is assigned its own drive controller 83 and its own power unit 84.
  • At least one processing station arranged in the periphery of the mandrel wheel 02 after the hollow body 01 has been printed is z. B. designed as a painting device 88 for painting the outer surface of each printed hollow body 01 and / or in particular in the case of two-part cans as an edge processing station.
  • the processing station embodied as a painting device 88 has a paint application roller 89 that is adjusted or at least adjustable against the outer surface of at least one of the printed hollow bodies 01 held by the mandrel wheel 02.
  • the paint application roller 89 of the painting device 88 is preferably rotatively driven by its own drive 91, with a hollow body 01 held on the mandrel wheel 02 after printing by means of at least one of the printing blankets 33 arranged on the circumference of the segment wheel 03 through the paint application roller 89 driven by the drive 91 by means of friction
  • Rotation offset and z. B. is set to a certain peripheral speed depending on the requirements of the painting process.
  • the circumferential speed of the hollow body 01 is due to the drive 91 the paint application roller 89 independently of the drives 58; 77; 78 of the conveyor wheel 76, the mandrel wheel 02 and / or the segment wheel 03 are set or at least adjustable.
  • the drive 91 of the paint application roller 89 is also assigned its own drive controller 83 and its own power unit 84.
  • a braking belt 96 is provided, the braking belt 96 being arranged to brake at least one rotating hollow body 01 held on one of the holding devices of the mandrel wheel 02 by friction.
  • the braking belt 96 is preferably driven by its own drive 97, with at least one rotating hollow body 01 held on the mandrel wheel 02 and to be braked by the braking belt 96 by friction after being printed by at least one of the printing blankets 33 arranged on the circumference of the segmented wheel 03 by means of this drive 97 on a for the peripheral speed required for further transport is set.
  • This peripheral speed of the hollow body 01 is independent of the drives 58 by the drive 97 of the braking belt 96; 77; 78; 91 of the feed wheel 76 and / or the mandrel wheel 02 and / or the segment wheel 03 and / or the paint application roller 89 of the painting device 88 are set or at least adjustable.
  • the drive 97 of the braking belt 96 is also preferably assigned its own drive controller 83 and its own power unit 84.
  • the braking belt 96 with its own drive 97 enables an optimal braking process of the mandrels before the upright hollow bodies 01 are picked up. It is particularly advantageous or necessary at high rotational speeds of the mandrels in connection with mandrels for large-volume hollow bodies 01 with a high mass moment of inertia.
  • the hollow body 01 is a z. B. designed as a rotatable transfer disk 92 conveyor for taking over on the mandrel wheel 02 held, by means of at least one of the arranged on the circumference of the segment wheel 03 printing blankets 33 and optionally painted on their outer surface provided hollow bodies 01, wherein a circumferential speed of the transfer disk 92 is preferably dependent on the rotation of the conveyor wheel 76 z. B. with the drive 78 of this conveyor wheel 76 z. B. is set or at least adjustable by means of a belt drive.
  • a drive of the transfer disk 92 is, for. B. with the drive 78 of the conveyor wheel 76 z. B. mechanically or electrically, in particular coupled in terms of control technology.
  • the transfer disk 92 is of its own, ie of the other drives 58; 77; 78; 87; 91; 97 separate drive driven in rotation.
  • this conveyor 93 for conveying printed and / or painted hollow bodies 01, e.g. B. provided in a dryer, this conveyor 93 z. B. as a revolving transport chain 93 with several, z. B. twenty pickups each designed to receive one of the hollow bodies 01 to be conveyed and preferably has its own drive 94, in particular a chain drive, this drive 94 preferably at least with which the drives 58; 77; 78 of segment wheel 03, mandrel wheel 02 and conveyor wheel 76 connecting data bus 79 is connected.
  • the drive 94 of this conveyor 93 is z. B. is assigned its own drive controller 83 and its own power unit 84.
  • the drives 58; 77; 78 of segment wheel 03, mandrel wheel 02 and conveyor wheel 76 are each designed as individual drives and are connected to one another via a common data bus 79.
  • further individual drives connected to the common data bus 79 are provided in the device for printing hollow bodies 01, e.g. B. the drive 87 for the acceleration belt 86 and / or the drive 91 for the paint application roller 89 of the painting device 88 and / or the drive 97 for the braking belt 96 and / or the possibly dedicated drive for the transfer disk 92 and / or the drive 94 for the transport chain 93.
  • All of these drives 58; 77; 78; 87; 91; 94; 97 are connected to a common data bus 79, z. B. designed as a central machine control control unit 82 controlled by means of control data transported in each case via this common data bus 79, these control data preferably at least the respective speed of the shaft of the relevant drive 58; 77; 78; 87; 91; 94; 97 as well as at least one angular position to be assumed by its shaft.
  • the control unit 82 designed as a central machine control is z. B. designed as a control station belonging to the decorator in question, the drives for the respective drives 58; 77; 78; 87; 91; 94; 97 have the required control data set at this control station.
  • the feed wheel 76, the mandrel wheel 02, the segment wheel 03 and the transfer disk 92 are controlled by their respective drives 58; 77; 78 synchronized with each other by means of the control data transported via the common data bus 79 in such a way that at a certain point in time at which the conveyor wheel 76 transfers a hollow body 01 to the mandrel wheel 02, another hollow body 01 already arranged on the mandrel wheel 02 is just passing through a hollow body 01 arranged on the segment wheel 03 Printing blanket 33 is printed and yet another already printed hollow body 01 is transferred from mandrel wheel 02 to transfer disk 92.
  • the separate drive 87 for the accelerator belt 86 enables individual control of the rotation of each individual hollow body 01 arranged on a mandrel of the mandrel wheel 02, with the rotation of the relevant being advanced or lagged if necessary Hollow body 01 is set or at least adjustable in each case with reference to a printing blanket 33 arranged on the circumference of segment wheel 03.
  • the separate drive 94 for the transport chain 93 enables an exact counting of the transported hollow bodies 01 and / or a targeted discharge of faulty hollow bodies 01.

Landscapes

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

Claims (15)

  1. Dispositif d'impression de corps creux (01), avec une roue segmentée (03) et un équipement pour amener de façon séquentielle les corps creux (01) contre la périphérie de la roue segmentée (03), dans lequel la roue segmentée (03) présente contre sa périphérie plusieurs segments (32) les uns derrière les autres pour respectivement recevoir un blanchet d'impression (33), dans lequel au moins un des blanchets d'impression (33) agencés sur l'un des segments (32) est agencé sur le corps creux (01) à imprimer de façon déroulante ou au moins pouvant se dérouler, dans lequel des segments (32) avoisinants sont respectivement séparés les uns des autres par un évidement (36) orienté parallèlement à l'axe de rotation (34) de la roue segmentée (03), dans lequel l'équipement présente au moins une roue d'acheminement (76) et une roue de mandrin (02) pour amener de façon séquentielle les corps creux (01) contre la périphérie de la roue segmentée (03), dans lequel d'abord la roue d'acheminement (76), puis la roue de mandrin (02) et ensuite la roue segmentée (03) sont agencées dans la direction de transport des corps creux (01), dans lequel plusieurs entraîneurs contre la périphérie de la roue d'acheminement (76) et plusieurs équipements de retenue contre la roue de mandrin (02) sont respectivement agencés pour respectivement recevoir un corps creux (01) à imprimer en coopération avec la roue segmentée (03), dans lequel la roue de mandrin (02) et la roue d'acheminement (76) présentent respectivement leur propre entraînement (77 ; 78) séparé de l'entraînement (58) de la roue segmentée (03).
  2. Dispositif selon la revendication 1, caractérisé en ce qu'un moteur (58) prévu pour l'entraînement rotatif de la roue segmentée (03) est conçu en tant qu'entraînement direct électrique à pôles élevés avec un nombre de pôles de vingt fois supérieur et/ou en tant que moteur à courant continu sans balais à excitation permanente.
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce qu'une bande d'accélération (86) est prévue, dans lequel la bande d'accélération (86) est agencée pour mettre en rotation par friction au moins un corps creux (01) maintenu contre l'un des équipements de retenue de la roue de mandrin (02).
  4. Dispositif selon la revendication 3, caractérisé en ce que la bande d'accélération (86) est entraînée par son propre entraînement (87), dans lequel au moins un corps creux (01) maintenu contre la roue de mandrin (02) et décalé en rotation par friction par la bande d'accélération (86) est réglé, avant son impression par au moins un des blanchets d'impression (33) agencés contre la périphérie de la roue segmentée (03), sur la vitesse périphérique requise pour le processus d'impression au moyen de cet entraînement (87), ou dans lequel une avance ou un retard de la rotation du corps creux (01) concerné est réglée ou au moins peut être réglée respectivement par rapport à un blanchet d'impression (33) agencé contre la périphérie de la roue segmentée (03).
  5. Dispositif selon la revendication 4, caractérisé en ce que la vitesse périphérique du corps creux (01) est réglée ou au moins peut être réglée par l'entraînement (87) de la bande d'accélération (86) indépendamment des entraînements (58 ; 77 ; 78) de la roue d'acheminement (76) et/ou de la roue de mandrin (02) et/ou de la roue segmentée (03).
  6. Dispositif selon la revendication 1 ou 2 ou 3 ou 4 ou 5, caractérisé en ce qu'est prévu un équipement de vernissage (88) avec un rouleau applicateur de vernis (89), dans lequel le rouleau applicateur de vernis (89) de l'équipement de vernissage (88) est entraîné en rotation par son propre entraînement (91).
  7. Dispositif selon la revendication 6, caractérisé en ce qu'un corps creux (01) maintenu contre la roue de mandrin (02), après l'impression au moyen d'au moins un des blanchets d'impression (33) agencés contre la périphérie de la roue segmentée (03) par le rouleau applicateur de vernis (89) entraîné par l'entraînement (91), est décalé en rotation au moyen de la friction et réglé sur une vitesse périphérique déterminée.
  8. Dispositif selon la revendication 6 ou 7, caractérisé en ce que la vitesse périphérique du corps creux (01) est réglée ou au moins peut être réglée par l'entraînement (91) du rouleau applicateur de vernis (89) indépendamment des entraînements (58 ; 77 ; 78) de la roue d'acheminement (76), de la roue de mandrin (02) et/ou de la roue segmentée (03).
  9. Dispositif selon la revendication 1 ou 2 ou 3 ou 4 ou 5 ou 6 ou 7 ou 8, caractérisé en ce qu'une bande de frein (96) est prévue, dans lequel la bande de frein (96) est agencé de façon à freiner par friction au moins l'un des corps creux (01) rotatifs contre l'un des équipements de retenue de la roue de mandrin (02).
  10. Dispositif selon la revendication 9, caractérisé en ce que la bande de frein (96) est entraînée par son propre entraînement (97), dans lequel au moins un corps creux (01) maintenu contre la roue de mandrin (02) en rotation et à freiner par friction par la bande de frein (96) est réglé, après son impression par au moins un des blanchets d'impression (33) agencés contre la périphérie de la roue segmentée (03), sur une vitesse périphérique requise pour le transport ultérieur au moyen de cet entraînement (97).
  11. Dispositif selon la revendication 9 ou 10, caractérisé en ce que la vitesse périphérique du corps creux (01) est réglée ou au moins peut être réglée par l'entraînement (97) de la bande de frein (96) indépendamment des entraînements (58 ; 77 ; 78 ; 91) de la roue d'acheminement (76) et/ou de la roue de mandrin (02) et/ou de la roue segmentée (03) et/ou du rouleau applicateur de vernis (89) de l'équipement de vernissage (88).
  12. Dispositif selon la revendication 1 ou 2 ou 3 ou 4 ou 5 ou 6 ou 7 ou 8 ou 9 ou 10 ou 11, caractérisé en ce qu'un disque de transfert (92) en rotation est prévu pour reprendre des corps creux (01) maintenus contre la roue de mandrin (02) et imprimés au moyen de l'un au moins des blanchets d'impression (33) agencés contre la périphérie de la roue segmentée (03), dans lequel une vitesse périphérique du disque de transfert (92) est réglée ou au moins peut être réglée en fonction de la rotation de la roue d'acheminement (76).
  13. Dispositif selon la revendication 12, caractérisé en ce que le disque de transfert (92) est entraîné en rotation par son propre entraînement ou en ce qu'un entraînement du disque de transfert (92) est couplé à l'entraînement (78) de la roue d'acheminement (76).
  14. Dispositif selon la revendication 12 ou 13, caractérisé en ce que dans la direction de transport des corps creux (01) et après le disque de transfert (92) est prévu un équipement d'acheminement (93) pour acheminer des corps creux (01) imprimés et/ou vernis, dans lequel cet équipement d'acheminement (93) présente son propre entraînement (94).
  15. Dispositif selon la revendication 1 ou 2 ou 3 ou 4 ou 5 ou 6 ou 7 ou 8 ou 9 ou 10 ou 11 ou 12 ou 13 ou 14, caractérisé en ce que tous les entraînements (58 ; 77 ; 78 ; 87 ; 91 ; 94 ; 97) sont commandés par une unité de commande (82) centrale au moyen de données de commande, dans lequel l'unité de commande (82) centrale est conçue en tant que poste de contrôle appartenant à ce dispositif, dans lequel les données de commande requises pour les entraînements (58 ; 77 ; 78 ; 87 ; 91 ; 94 ; 97) concernés sont réglées ou au moins peuvent être réglées au niveau de ce poste de contrôle.
EP19701079.6A 2018-01-24 2019-01-17 Dispositif d'impression de corps creux Active EP3743281B1 (fr)

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DE102018201033.1A DE102018201033B3 (de) 2018-01-24 2018-01-24 Vorrichtung zum Bedrucken von Hohlkörpern
PCT/EP2019/051124 WO2019145213A1 (fr) 2018-01-24 2019-01-17 Dispositif d'impression de corps creux

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EP (1) EP3743281B1 (fr)
CN (1) CN111902283B (fr)
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Also Published As

Publication number Publication date
CN111902283B (zh) 2021-08-03
PL3743281T3 (pl) 2022-01-17
ES2902580T3 (es) 2022-03-29
DE102018201033B3 (de) 2018-10-31
CN111902283A (zh) 2020-11-06
EP3743281A1 (fr) 2020-12-02
US20210039381A1 (en) 2021-02-11
US11400700B2 (en) 2022-08-02
WO2019145213A1 (fr) 2019-08-01

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