EP4054848A1 - Verfahren und vorrichtung zum bedrucken der jeweiligen mantelfläche von hohlkörpern - Google Patents
Verfahren und vorrichtung zum bedrucken der jeweiligen mantelfläche von hohlkörpernInfo
- Publication number
- EP4054848A1 EP4054848A1 EP20781343.7A EP20781343A EP4054848A1 EP 4054848 A1 EP4054848 A1 EP 4054848A1 EP 20781343 A EP20781343 A EP 20781343A EP 4054848 A1 EP4054848 A1 EP 4054848A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hollow bodies
- hollow body
- printed
- printing
- mandrel wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- B41F33/00—Indicating, counting, warning, control or safety devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
- B41F33/0009—Central control units
Definitions
- Such as B. is known from WO 2012/148576 A1, in the packaging industry in a device for decorating hollow bodies each having a cylindrical outer surface, a plurality of printing units are mostly used. In this case, each of these printing units transfers one printing ink to a printing blanket 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, in particular each having a cylindrical outer surface is, for. B. used in connection with a production plant, which usually has several workstations, for the manufacture and further processing of such hollow bodies, the printing or decoration of the hollow bodies being carried out by an industrially executed or at least executable printing process, which is why these hollow bodies can generally also be referred to as printed products.
- the hollow bodies to be printed are mass-produced with z. B. several hundred or even a few thousand pieces per minute, e.g. B. between 1,500 and 2,500 pieces per minute, particularly preferably between 1,800 and 2,200 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. as Beverage cans or used 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.
- 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, proceed 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. can be manufactured into a so-called raw can, and in a production step carried out at the end of production, a circular cover is placed on the cylinder jacket and connected to the cylinder jacket by flanging it in an airtight manner.
- US Pat. No. 6,167,805 B1 discloses a continuous movement device for decorating cylindrical containers, the device comprising: a decoration section and a transport section which conveys containers through a decoration zone in which decorations are applied to the containers, the transport section comprising: a carrier steadily rotating on a carrier axis, the carrier comprising: a forwardly facing side, a plurality of mandrel sub-assemblies mounted on the carrier at equal angular intervals between adjacent sub-assemblies, each of the sub-assemblies being mounted to extend along a single one A path that is radially disposed with respect to the support axis as a center, each of the subassemblies comprising: an elongated support arm extending along a single one of the paths, an axis extending forwardly from the arm that is generally parallel to the Is a support axis, and a rail attached to the arm and extending longitudinally therefrom; the axle includes a spindle portion for supporting a rota
- US 4926788 A is a mandrel system for a can coating or - Decoration machine or the like known, comprising a ceramic sleeve element for carrying a workpiece and a sleeve carrier core element for carrying the ceramic sleeve element and at least two axially spaced bearing units which are carried by the sleeve carrier core element and / or the carrier core element.
- 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, wherein the controller adapts or sets the respective speed of the mandrel wheel, the segment wheel, the transfer disk and the transport chain on the basis of information received from the decoders.
- a production change with a format change in particular a change in the height of the hollow bodies to be printed, can be carried out much faster on a generic production system, since the production system is converted to production of hollow bodies with one opposite the previous production other height in the decorator no assembly work is to be carried out.
- FIG. 1 shows a device for printing or for decorating the respective outer surface of hollow bodies
- FIG. 2 shows the device according to FIG. 1 with its drive control.
- the printing 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 processes 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 an indirect letterpress printing process, in which printing ink is first applied to a printing blanket and only from there onto the outer surface of a hollow body.
- the ready-to-use printing block for the printing process is a printing form with a printing relief
- This printing relief reproduces the printing image provided for the printing process of the indirect letterpress printing process, in contrast to the classic, i.e. direct letterpress printing process, without mirroring, whereby in a trouble-free printing operation only the printing relief is involved in the transfer of the printing ink supplied to the plate cylinder by the inking unit to at least one printing blanket that interacts with this plate cylinder is.
- the pressure body is z. B. formed from a plastic.
- the printing body 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 printing body z. B. can be removed by washing or by means of a laser.
- the printing forme cylinder or plate cylinder is preferably mounted at both ends, but it can also be designed as a floating mounting in which the printing forme cylinder or plate cylinder in question is only z.
- B. is mounted on a preferably conical pin.
- the carrier of the printing cliché On the outer surface of each printing forme cylinder only a single printing cliché is usually arranged, the carrier of the printing cliché completely or at least largely, in particular more than 80%, of the circumference of the printing forme cylinder in question.
- a length of the printing body of the printing block directed in the circumferential direction of the printing forme cylinder in question is preferably shorter than the circumferential length of the printing forme cylinder in question.
- 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 lateral surface of each printing forme 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 decorating hollow bodies each preferably having a cylindrical outer surface, 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 has at least one inkjet print head or a laser.
- each printing forme cylinder or plate cylinder each has a diameter in the range between 100 mm and 150 mm, in particular between 120 mm and 130 mm, with an axial length of the printing forme cylinder or plate cylinder in question each z. B. between 200 mm and 250 mm, in particular between 200 mm and 220 mm.
- the printing block to be arranged on the outer surface of the relevant printing forme cylinder or plate cylinder has a width in the axial direction of the relevant plate cylinder in the range of, for. B. 100 mm to 200 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 order-specific special colors, which are e.g. B. with regard to their respective printability in a special way are matched 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.
- order-specific special colors usually also differ in their respective hue.
- the arrangement of the printing blankets on the circumference of the segment wheel takes place, for. B. in that the printing blankets on the circumference of the segment wheel each z. B. are attached by an integral 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 - ie a decorator - a larger number of printing blankets is arranged one behind the other along the circumference of the segmented wheel than are provided in each case on the segmented wheel radially adjusted or at least adjustable printing forme cylinders or plate cylinders.
- 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. eight associated printing forme cylinders or plate cylinders on its circumference one behind the other z. B. twelve blankets.
- the surface of 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, ie without profiling educated.
- the respective printing forms of these printing forme cylinders or the respective printing blocks of these plate cylinders roll on the printing blankets moved by the segmented wheel, with the printing plates press at least their printing relief into the respective printing blanket or at least press them on.
- An intensity of the impression is e.g. B. before or at the beginning of a printing process z. B. by means of a remote control by setting a pressure force 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.
- segment wheel arranged printing blankets, or the hollow bodies to be printed are each directly and immediately by means of this transport device, d. H. without the help 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, for. B. prints in an inkjet printing process.
- the segment wheel also rotating about a preferably horizontal axis feed wheel or mandrel wheel has concentric 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. described in EP 1 165318 A1.
- 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-part box 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 can be rotated almost smoothly about its respective longitudinal axis.
- Each of the mandrels is driven by a drive means cooperating with the respective mandrel, e.g. B.
- 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-part 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, for. 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.
- 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 printing inks required for the print image to be printed on the respective outer surface of the hollow body are therefore collected on the respective printing cliché.
- 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 in a touch contact between the printing blanket and the surface of the hollow body to be printed.
- the segment wheel is accelerated accordingly, the circumferential speed of the respective dome of the mandrel wheel preferably starting from a first contact point of the hollow body to be printed with the printing blanket in question during the rolling of its outer surface on a distance z. B. is synchronized by the first 50 mm of the circumferential length of the blanket with the circumferential speed of the segment wheel.
- the segment wheel carrying the printing blanket in question is the z. B. on that the circumferential speed to be set for the respective mandrel of the mandrel wheel.
- 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. set the segment wheel.
- at least the mandrel wheel and the segment wheel are each individually rotatably driven 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 device for printing or for decorating in particular hollow bodies 01 each having a preferably cylindrical outer surface, eg. B. two-part cans 01, these hollow bodies 01 with a conveyor sequentially the z. B. as a rotating or at least rotatable feed wheel, in particular as a mandrel wheel 02 designed transport device and held there on this transport device individually on a holder each designed as a mandrel or a spindle.
- a rotating or at least rotatable feed wheel in particular as a mandrel wheel 02 designed transport device and held there on this transport device individually on a holder each designed as a mandrel or a spindle.
- this transport device is preferably designed as a mandrel wheel 02 rotating or at least rotatable about an axis of rotation 41.
- a printing ink-transmitting device e.g. B. together a rotating or at least rotatable segment wheel 03 about an axis of rotation 34, along the circumference of which several printing blankets 33 are arranged one behind the other.
- a plurality of printing forme cylinders 04 are provided along its circumference line, or at least adjustable, on this segmented wheel 03, with these printing forme cylinders 04 or Plate cylinder 04 each has a printing forme, in particular a printing plate, is arranged, this printing plate being designed in particular to carry out a letterpress process.
- Each of the printing forme cylinders 04 or plate cylinders 04 is supplied with a specific printing ink by means of an inking unit 06 in order to color its printing forme or printing block.
- the printing forme cylinders 04 are each designed as a plate cylinder 04 carrying at least one printing block.
- each is to be arranged on the segment gear 03
- Printing blankets 33 each on a preferably flat, tabular metal support with a material thickness of, for. B. 0.2 mm cohesively, in particular applied by an adhesive.
- 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.
- the hollow bodies 01 brought up to the segmented wheel 03 by the mandrel wheel 02 rotating around the axis of rotation 41 are updated 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, in the printing process printing blanket 33 is pressed on, which is indicated in FIG. 1 by a double arrow indicating the movement of the relevant hollow body 01 to be printed.
- FIG. 2 shows, in a simplified and schematic manner, an embodiment of the device for printing hollow bodies 01, in which several hollow bodies 01 are sequentially connected to a conveying device 74 in the transport direction indicated by an arrow a conveyor wheel 76 and from there to the mandrel wheel 02 and then to the segment wheel 03.
- the conveying device 74 has at least two elements which each guide the hollow body 01 at a distance from one another, these elements such. B. each lead the head and the bottom of the hollow body 01 in question.
- the hollow bodies 01 to be fed to the printing process must be arranged neither too loosely nor too tightly between the elements of the conveying device 74 guiding these hollow bodies 01 at the top and bottom, since otherwise a smooth and / or trouble-free transport of these hollow bodies 01 is not guaranteed, especially at higher speeds.
- the rotating or at least rotatable conveyor wheel 76 about an axis of rotation 43 and the mandrel wheel 02 rotating or at least rotatable about its axis of rotation 41 form a device for sequentially feeding the hollow bodies 01 to the circumference of the segment 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 arranged for receiving a hollow body 01 to be printed in cooperation with the segment wheel 03.
- the drivers of the conveyor wheel 76 are, for. B. formed by recesses on its circumference, each recess always receiving exactly a single hollow body 01 at a specific point in time and conveying it during the rotation of the conveyor wheel 76.
- a hollow body 01 in the relevant recess of the conveyor wheel 76 is z. B. supported by an air blast device 98 arranged in the periphery of the conveyor wheel 76, at least one puff of air pushing the hollow body 01 in the direction of the conveyor wheel 76 from the air blast device 98 depending on an angular position of the conveyor wheel 76.
- the conveyor 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 ones Zig received hollow body 01 is conveyed during the rotation of the star wheel.
- the drive 77 of the mandrel wheel 02 or the drive 13 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.
- At least the drive 77 of the mandrel wheel 02 and the drive 13 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, position-regulated by the control unit 82 and / or set in their respective speed.
- the drive 13 of the segment wheel 03 is z. B. designed as a torque motor.
- at least the respective drives 13; 77; 78 of the conveyor wheel 76, mandrel wheel 02 and segment wheel 03 each have their own drive controller 83, each connected to the data bus 79, and their own 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 in question 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.
- a A preferred embodiment is at least one hollow body 01, preferably several hollow bodies 01, each held on one of the mandrels of the mandrel wheel 02, prior to their respective printing by means of at least one of the printing blankets 33 arranged on the circumference of the segment wheel 03, e.g. B.
- This acceleration belt 86 preferably has its own of the drives 13; 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 circumferential speed of the acceleration belt 86 being freely 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 01 as an edge processing station.
- the processing station embodied as a painting device 88 has at least one 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 surface of the paint application roller 89 in question that applies paint is matched to the respective format of the hollow bodies 01 to be painted.
- the paint application roller 89 in question takes place in at least one area of this area Paint application roller 89 no paint removal takes place and as a result, paint splatters occur to a greater extent when the paint application roller 89 rotates.
- an area of the paint application roller 89 in question that is too small in relation to the current height of the hollow bodies 01 to be painted in the axial direction no complete paint application can be carried out on the outer surface of the hollow bodies 01 to be painted. Both are undesirable, which is why the size of the paint-applying surface of the paint application roller 89 in question, i.e.
- the axial extension of this surface parallel to the axis of rotation of the paint application roller 89 in question should always be matched to the respective format of the hollow bodies 01 to be painted and thus to their height.
- the axial extension of the paint-applying surface of this paint application roller 89 running parallel to the axis of rotation of the paint application roller 89 concerned must be positioned axially in congruent correspondence with the height of these hollow bodies 01 as a function of the current height of the hollow bodies 01 to be painted.
- a friction body 96 of this friction brake being disposed so as to brake at least one rotating hollow body 01 held on one of the holding devices of the mandrel wheel 02 by friction.
- the friction body 96 of the friction brake is moved relative to the rotating hollow body 01 held on one of the holding devices of the mandrel wheel 02, the movement of the friction body 96 of the friction brake to the outer surface of the hollow body 01 having a tangential speed component.
- a braking band 96 designed friction body 96 of the friction brake enables an optimal braking process of the rotating hollow body 01 which is about to be passed on.
- This braking process 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 braking process increases operational safety when the hollow bodies 01 are transferred from the mandrel wheel 02 to a further transport equipment increased significantly.
- a z. B. designed as a rotatable transfer disk 92 conveying device for taking over the hollow body 01 held on the mandrel wheel 02, printed by means of at least one of the printing blankets 33 arranged on the circumference of the segment wheel 03 and optionally painted on its outer surface.
- a circumferential speed of the transfer disk 92 is either through its own rotary drive 73 or z. B. depending on the rotation of the feed wheel 76 z. B. with the drive 78 of this conveyor wheel 76 z. B. set by means of a belt drive or at least adjustable. In the latter case, the drive 73 of the transfer disk 92 is z. B. with the drive 78 of the conveyor wheel 76 z. B.
- the shaft of the transfer disk 92 is of its own, i. H. of the other drives 13; 77; 78; 87; 91 separate drive 73 driven in rotation, this drive 73 preferably being designed as a motor.
- the transfer disk 92 and the mandrel wheel 02 are depending on the height of the hollow body 01 to be transferred in a lateral, i.e. H. in the axial direction offset from one another and thus arranged rotating in two different vertical planes parallel to one another. If z. If, for example, the height of the printed and / or painted hollow bodies 01 changes due to a production change, this lateral offset of transfer disk 92 and mandrel wheel 02 must also be adapted.
- 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 or more 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 13; 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.
- All of these drives 13; 73; 77; 78; 87; 91; 94 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 13; 73; 77; 78; 87; 91; 94 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, with the for the respective drives 13; 73; 77; 78; 87; 91; 94 have the required control data set at this control station.
- the conveyor wheel 76, the mandrel wheel 02, the Segment wheel 03 and the transfer disk 92 by controlling their respective drives 13; 77; 78 are 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 acceleration belt 86 enables individual control of the rotation of each individual hollow body 01 arranged on a mandrel of the mandrel wheel 02, with an advance or lag of the rotation of the relevant hollow body 01 in each case with respect to one arranged on the circumference of the segment wheel 03, if necessary Blanket 33 is set or at least adjustable.
- 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.
- the conveyor wheel 76, mandrel wheel 02, transfer disk 92 and / or conveyor chain 93 offer the advantage that the timing of the various transfer actions for transferring the relevant hollow bodies 01 from one conveyor element to the other can be set without mechanical intervention in the respective drive elements.
- a motor 11 of the plate cylinder 04 and a motor 12 of the anilox roller 08 of the respective inking unit 06 interacting with the segmented wheel 03 are each assigned their own drive controller 83 and their own power unit 84.
- the electronic control unit 82 described above is also the relevant motor 11 of the plate cylinder 04 and the relevant motor 12 of the anilox roller 08 each, for. B. regulated or at least controllable in its angular position and / or in its respective speed.
- the respective drive controller 83 and the associated power unit 84 are preferably connected via the data bus 79 to the control unit 82 designed as a central machine controller. B. is designed as the control center belonging to the decorator in question.
- drives or motors 11; 12; 13; 77; 78; 87; 91; 94 each individually and independently controlled or at least controllable. It is preferably provided that for the respective motors 11; 12; 13; 77; 78; 87; 91;
- z. B. a production change, in particular a changeover of the machine arrangement to a production of hollow bodies 01 other format, z. B. to facilitate cans with a shorter or longer can height and / or a different can diameter compared to the current production, it is advantageous that the respective motors 11; 12; 13; 77; 78; 87; 91; 94 are each controlled or at least controllable in accordance with coordinated characteristic curves.
- the movement of the friction body 96 of the friction brake having the tangential speed component is mechanically coupled to the rotational movement of the transfer disk 92.
- the mechanical coupling of the movement of the friction body 96 of the friction brake with the rotational movement of the transfer disk 92 is advantageous because at this point in the transport path of the hollow body 01 the tangential speed component in the movement of the friction body 96 of the friction brake for a trouble-free operation of the device for printing the respective
- the outer surface of hollow bodies 01 does not necessarily have to be adhered to exactly and therefore a dynamic speed correction does not necessarily have to be carried out.
- a more economical solution than providing a further individual drive for the friction body 96 of the friction brake can therefore easily be used.
- the hollow bodies 01 are transported horizontally along this transport path, ie their respective height is essentially always parallel to the respective axis of rotation 41; 42; 43 aligned by the feed wheel 76, the mandrel wheel 02 and the transfer disk 92, the respective axis of rotation 41; 42; 43 from the conveyor wheel 76, from the mandrel wheel 02 and from the transfer disk 92 in the decorator are arranged parallel to one another.
- the device has a conveyor device 93, which is arranged downstream of the transfer disk 92 in the transport direction of the hollow bodies 01 and is designed as a revolving transport chain 93, for the transport of the hollow bodies 01, the transfer disk 92 and the transport chain 93 in a lateral, ie, axial direction Are arranged offset to one another in two different planes parallel to one another, with hollow bodies 01 printed in an ongoing production being transferred from the transfer disk 92 to the transport chain 93, the lateral Offset between the transfer disk 92 and the transport chain 93 is adapted to the height of the hollow bodies 01 to be printed in the second production by an automated axial change in position of the transfer disk 92 relative to the position of the transport chain 93.
- the lateral offset between the mandrel wheel 02 and the transfer disk 92 and the lateral offset between the transfer disk 92 and the transport chain 93 are not fundamentally designed, but often have the same amount.
- the distance between the head and the bottom of the respective hollow body 01 leading elements of the Conveyor device 74 is preferably adapted to the height of the hollow bodies 01 to be printed in the second production in that this adaptation is carried out by an automated setting of this distance.
- the respective axial extension of the lacquer running parallel to the axis of rotation of the respective lacquer application roller 89 is positioned axially in congruent correspondence with the height of this hollow body 01 as a function of the height of the hollow bodies 01 to be painted in the second production, this positioning of the paint applying surface of the paint application roller 89 in question being carried out automatically .
- the axial position change of the transfer disk 92 is preferably carried out by means of a motor-driven axial adjustment of this transfer disk 92.
- the adjustment of the distance between the respective elements of the conveying device 74 guiding the head and the bottom of the respective hollow body 01 is preferably carried out by means of a motor-driven adjustment of these elements.
- the Positioning of the axial extension of the lacquer-applying surface of this lacquer applicator roll 89 running parallel to the axis of rotation of the relevant lacquer applicator roll 89 for congruent correspondence with the height of the hollow bodies 01 to be lacquered in the second production preferably by a motor-driven axial adjustment of this lacquer applicator roll 89.
- the z. B. is formed by the control unit 82 designed as a central machine control, and / or in a with the control unit 82 z. B.
- one of the stored formats of the hollow body 01 is now selected on the control unit 82 or can at least be selected there. It can also be provided that at least one recommended setting value is displayed on the control unit 82 as a function of the selected format of the hollow body 01.
- the control unit 82 now sets the lateral offset between the mandrel wheel 02 and the transfer disk 92 and / or the lateral offset between the transfer disk 92 and the transport chain 93, in particular depending on the height of the hollow bodies 01 a) to be printed and / or painted by controlling at least one of the drives assigned to the transfer disk 92 and / or b) the distance between each of the The head and the bottom of the relevant hollow body 01 elements of the conveying device 74 through a control of a drive assigned to the conveying device 74 and / or c) the position of the axial extension of the paint-applying surface of this paint-applying roller 89 running parallel to the axis of rotation of the relevant paint application roller 89 for congruent correspondence with the height of the hollow bodies 01 to be painted in the second production by a control of a drive assigned to the paint application roller 89.
- the control unit 82 can activate the respective drive or drives depending on the selected format of the hollow body 01 for setting the required aforementioned settings automatically or on the basis of an operator actuation of an operating element 71 acting on the respective drive or drives.
- Several drives can be operated simultaneously or with a time delay, ie one after the other. Provision is preferably made for at least one fine adjustment of at least one of the required aforementioned settings to be carried out or at least possible with an operating element 71 provided on the control unit 82 or on the control station belonging to the decorator and acting on at least one of the respective drives.
- a fine setting is to be understood here as a setting of values, whereby these values can deviate in a range of up to -20% or + 20% from the recommended format-dependent setting value.
- the device for printing the respective outer surface of hollow bodies 01 be designed with drives, with an additional to the rotary drive 73; 78 of the transfer disk 92, the first of these drives adapts the lateral offset between the mandrel wheel 02 and the transfer disk 92 to the height of the hollow bodies 01 to be printed in the second production and / or by means of an automatic axial change in position of the transfer disk 92 relative to the position of the mandrel wheel 02 one in addition to the rotary drive 73; 78 of the transfer disk 92 provided second of these drives the lateral offset between the transfer disk 92 and the Conveyor chain 93 automatically adjusts the axial position change of the transfer disk 92 relative to the position of the conveyor chain 93 to the height of the hollow body 01 to be printed in the second production and / or a third of these drives the distance between the head and the bottom of the respective hollow body 01 leading elements of the conveying device 74 adjusts this distance by an automated change and / or with a fourth
- At least one of these drives or all of these drives are each designed as a linear motor.
- the function of the second drive is also taken over by the first drive, so that only a single drive is actually required for changing the axial position of the transfer disk 92.
- All these drives are each controlled by the control unit 82 as a function of stored setting values related to a format of the hollow bodies 01 to be printed and / or lacquered, these setting values in this control unit 82 and / or in the database connected to this control unit 82 for data purposes 72 are stored.
- the respective travel ranges preferably each extend in a range between 100 mm and 200 mm in order to be able to print hollow bodies 01 of different heights in the same production system.
- the respective height z. B. all currently marketable two-part cans 01, in particular beverage cans, varies exactly in this area between 100 mm and 200 mm, so that a decorator, with the respective travel of its transfer disk 92 and / or conveyor 74 and / or paint application roller 89 in the area mentioned due to the automatic adjustment, it can be easily adapted to different productions in a very flexible manner.
- the hollow bodies 01 conveyed by the conveying device 74 or held by the mandrels of the mandrel wheel 02 or transported by the transfer disk 92 or by the transport chain 93 are each arranged horizontally along their transport path.
- Axis of rotation (02) Axis of rotation (92) Axis of rotation (76) Control element database drive (92) Conveyor device, conveyor wheel drive (02) Drive (76; 92) Data bus transfer position Control unit, drive regulator, power section, Accelerator belt drive (86) Painting device, paint application roller, drive (89) Transfer disk 93 conveyor; Transport chain
Landscapes
- Printing Methods (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019129926.8A DE102019129926B4 (de) | 2019-11-06 | 2019-11-06 | Verfahren und Vorrichtung zum Bedrucken der jeweiligen Mantelfläche von Hohlkörpern |
| PCT/EP2020/076912 WO2021089236A1 (de) | 2019-11-06 | 2020-09-25 | Verfahren und vorrichtung zum bedrucken der jeweiligen mantelfläche von hohlkörpern |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4054848A1 true EP4054848A1 (de) | 2022-09-14 |
| EP4054848B1 EP4054848B1 (de) | 2023-08-16 |
Family
ID=72665251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20781343.7A Active EP4054848B1 (de) | 2019-11-06 | 2020-09-25 | Verfahren und vorrichtung zum bedrucken der jeweiligen mantelfläche von hohlkörpern |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US11535027B2 (de) |
| EP (1) | EP4054848B1 (de) |
| DE (1) | DE102019129926B4 (de) |
| WO (1) | WO2021089236A1 (de) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4741266A (en) * | 1986-10-08 | 1988-05-03 | Adolph Coors Company | Can decorating apparatus |
| US4926788A (en) * | 1987-01-02 | 1990-05-22 | Wilbanks International, Inc. | Can coater/decorator mandrel system |
| US6167805B1 (en) * | 1999-02-10 | 2001-01-02 | Sequa Corporation | Mandrel carrier for high speed can decorators |
| DE10010099A1 (de) * | 2000-03-02 | 2001-09-20 | Hinterkopf Gmbh | Transfervorrichtung für in einer Druckmaschine zu bedruckende oder bereits bedruckte Hohlkörper |
| US8596624B2 (en) | 2010-06-09 | 2013-12-03 | Stolle Machinery Company, Llc | Self-aligning pivotable mandrel assembly |
| US9475276B2 (en) * | 2011-04-27 | 2016-10-25 | Stolle Machinery Company, Llc | Can decorator machine, ink station assembly therefor, and can decorating method employing same |
| EP3202692A4 (de) * | 2014-09-30 | 2018-05-30 | Toyo Seikan Co., Ltd. | Dynamische fördervorrichtung |
| EP3481634B1 (de) * | 2016-07-11 | 2021-01-20 | Crown Packaging Technology, Inc. | Dekorationsmaschinenantrieb |
| DE102018201033B3 (de) * | 2018-01-24 | 2018-10-31 | Koenig & Bauer Ag | Vorrichtung zum Bedrucken von Hohlkörpern |
-
2019
- 2019-11-06 DE DE102019129926.8A patent/DE102019129926B4/de not_active Expired - Fee Related
-
2020
- 2020-09-25 WO PCT/EP2020/076912 patent/WO2021089236A1/de not_active Ceased
- 2020-09-25 EP EP20781343.7A patent/EP4054848B1/de active Active
- 2020-09-25 US US17/613,160 patent/US11535027B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| DE102019129926A1 (de) | 2021-05-06 |
| DE102019129926B4 (de) | 2022-09-08 |
| WO2021089236A1 (de) | 2021-05-14 |
| EP4054848B1 (de) | 2023-08-16 |
| US11535027B2 (en) | 2022-12-27 |
| US20220212463A1 (en) | 2022-07-07 |
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