EP1736313A2 - Machine à imprimer - Google Patents

Machine à imprimer Download PDF

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Publication number
EP1736313A2
EP1736313A2 EP06006633A EP06006633A EP1736313A2 EP 1736313 A2 EP1736313 A2 EP 1736313A2 EP 06006633 A EP06006633 A EP 06006633A EP 06006633 A EP06006633 A EP 06006633A EP 1736313 A2 EP1736313 A2 EP 1736313A2
Authority
EP
European Patent Office
Prior art keywords
transport
printing
transport carrier
printing machine
machine according
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.)
Withdrawn
Application number
EP06006633A
Other languages
German (de)
English (en)
Inventor
Rainer Wieland
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KBA Metronic GmbH
Original Assignee
KBA Metronic GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by KBA Metronic GmbH filed Critical KBA Metronic GmbH
Publication of EP1736313A2 publication Critical patent/EP1736313A2/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/08—Machines
    • B41F15/0863—Machines with a plurality of flat screens mounted on a turntable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/14—Details
    • B41F15/16—Printing tables
    • B41F15/18—Supports for workpieces
    • B41F15/20—Supports for workpieces with suction-operated elements
    • 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
    • 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
    • B41F17/24—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on flat surfaces of polyhedral articles
    • B41F17/26—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on flat surfaces of polyhedral articles by rolling contact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F7/00—Rotary lithographic machines
    • B41F7/16—Rotary lithographic machines for printing on non-deformable material, e.g. sheet metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
    • B41J3/4071—Printing on disk-shaped media, e.g. CDs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2215/00—Screen printing machines
    • B41P2215/50—Screen printing machines for particular purposes
    • B41P2215/55—Screen printing machines for particular purposes for printing compact discs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2217/00—Printing machines of special types or for particular purposes
    • B41P2217/50—Printing presses for particular purposes
    • B41P2217/55—Printing presses for particular purposes for printing compact discs

Definitions

  • the invention relates to a printing press for printing individual objects, in particular CDs or DVDs, by means of at least one printing station using one or more printing processes wherein the individual objects pass through the at least one printing station on a transport path in transport carriers.
  • the invention further relates to a gripper system, a transport carrier, and a method for printing individual objects.
  • Printing machines for printing on individual objects with at least one flat side such as CDs or DVDs are known. That's how it describes DE 44 38 246 a printing machine for printing on CDs or DVDs by means of an offset process.
  • the objects are placed individually by transport spindles by means of a gripper system on designated transport carriage and fixed there by means of vacuum (vacuum).
  • the fixation is necessary because the objects are subject to mechanical stress during subsequent printing and can be pulled down from the transport carrier due to the adhesion of the transferred ink to the blanket and the object surface.
  • the printing of the object surfaces takes place in a known manner in multi-color printing, in which case a 4-color print is first applied to a common transfer roller and in a second step, the complete, multicolored image is transferred to the object. Subsequent drying of the colors depending on the type of color used permanently fixes the image on the surface of the object.
  • screen printing units are usually designed as flat screen printing units.
  • the subsequent printing with offset printing requires a continuous movement of the transport carrier under the printing units, so that the task results in the combination of all motion sequences involved to synchronize a discontinuous with a continuous movement and synchronized transfer the transport carrier along the trajectory between the movement sections.
  • a disadvantage of such a combination of movements is that the realization is associated with a considerable mechanical and control engineering effort and also causes considerable costs.
  • the CD centrally hang on the transport carrier and fix it is provided to move a centering mandrel immediately after the successful placing of the CDs on the transport carrier through the central opening.
  • This centering mandrel may for example be designed conical, wherein the CD is pushed due to the conicity of the centering mandrel in an aligned position.
  • the CD has been aligned, it is fixed in this position, for example by means of a vacuum device on the transport carrier and the centering mandrel can be safely removed again without changing the position of the CD.
  • a vacuum device on the transport carrier
  • an expanding mandrel may be used as an alternative to a conical centering mandrel.
  • Such a mandrel comprises, for example, 3 spreader jaws, which are arranged symmetrically about a common shaft and in the non-expanded state have an overall diameter which is smaller than the minimum diameter of the central opening of the CD.
  • the jaws can be moved symmetrically radially outward so as to produce an effective diameter that is greater than or equal to the maximum diameter of the central opening of a CD.
  • force-limiting elements such as springs or force sensors. Due to the symmetry of the movement, a CD that has not yet been centered after placement has been centered on the centering mandrel. Since this in turn is centered on the position of the respective transport carrier, thus the CD is centered to the transport carrier. After the successful centering, as already described, the CD is fixed on the transport carrier, for example by means of a vacuum device.
  • the spreading of the jaws of the expanding dome is now canceled, so that the effective diameter of the expanding mandrel is again smaller than the minimum diameter of the central bore of the CD.
  • the centering dome can now be safely lifted out of the central bore of the CD without damaging the CD or lifting it off the carrier when jamming.
  • the object of the invention is to simplify the mechanical complexity and the required control effort in a printing press.
  • This object is achieved by means of a printing machine and a method in which individual objects are stored from a supply, e.g. a transport stack or a transport spindle individually or in parallel next to each other several removable and can be stored during a continuous movement of the transport carrier to this particular precise position whereby the centering of the individual objects to a transport carrier during the depositing process. Furthermore, the removal of the individual objects from transport carriers takes place during a movement of the transport carrier.
  • a supply e.g. a transport stack or a transport spindle individually or in parallel next to each other several removable and can be stored during a continuous movement of the transport carrier to this particular precise position whereby the centering of the individual objects to a transport carrier during the depositing process. Furthermore, the removal of the individual objects from transport carriers takes place during a movement of the transport carrier.
  • the transport carrier must not be stopped during the placement of the individual objects in the designated recording of the transport carrier, during the centering and also during the removal of transport carriers. This results in combination with the required movements under the offset printing units only a single continuous movement in the transport path of the individual objects by the printing press.
  • the complete apparatus essentially comprises a feed system 1 with the task of removing the individual objects 4, for example CDs, from their spindles 4a and conveying them to the transport carriers 10 of the transport system 3, a transport system 3 with a closed transport path 3a, along its individual treatment stations 12a 12g are arranged for the individual objects 4 located on transport carriers 10, and a removal system 3 with the task of removing the individual objects 4 treated along the transport system 3 from the transport carriers 10 and depositing them on spindles 4a.
  • the task of the feeding system 1 is to remove the CDs 4 delivered on spindles 4a individually from the spindles 4a from above and place them on the transport carriers 10. This unit must inevitably clocked are driven, since the CDs 4 are lined up with its central opening 401 on a centrally and vertically on the spindle 4a located axis 4b.
  • a removal can only take place from above and along the vertical axis 4b, which for the time of CD removal requires a stoppage of Zuzhouarmes 7a above the spindle 4a, To allow removal of CDs 4 from the CD stack 4c and at the same time a movement of the Zugararmes It is necessary to lower the feed arm 7a or a gripper device 8 located thereon during the standstill time for removing CDs 4, so that a gripper device 8 located at the end of the feed arm 7a can remove a CD 4 from the CD stack 4c ,
  • the resting on the spindle 4a CD stack 4c is raised continuously or in small steps by a separate, not shown, separate mechanism.
  • the upper edge of the CD stack 4c is detected by means not shown sensors and readjusted the current height of the upper edge of the CD stack 4c on the spindle 4a as needed by further lifting the CD stack 4c.
  • the filling of this buffer is carried out by the above-mentioned lifting of the CD stack 4c such that the CD stack 4c is raised so far that an upper part of the CD stack 4c and thus a certain number of CDs 4 outside the spindle axis 4b and simultaneously protrudes the buffer area.
  • the leadership of the CDs 4 is done in this area no longer upper the central opening of the CD 4 but via guide elements, which are arranged along the circumference of the CD 4.
  • the transfer of leadership between the two areas is carried out so that a CD 4 is unguided at any time.
  • the CDs 4 are held so that only a removal of the CDs is possible upwards and the CDs 4 can be pushed by the spindle 4a in the memory, but these can not fall down.
  • the outer guide of the CDs 4 simultaneously supports the positioning of the CDs 4 to the gripper system. 8
  • the feed system 1 comprises, for example, a star-shaped rotary arm 7 with, for example, five feed arms 7a, which is rotated in a horizontal movement stepwise about an axis 7c.
  • Each of the feed arms 7a carries at its outer end one or more gripper devices 8 each having one or more gripper elements combined in one or more groups, for example vacuum cups 8d, which are connected to a valve-controlled vacuum system.
  • the gripper device 8 can perform a controlled vertical upward and downward movement via a lifting device 7e so as to individually remove CDs 4 from the spindles 4a during its standstill phase or during a standstill phase or a movement phase the removed CDs 4 on the carriers 10 to position or optionally at a not shown Code-Ceck position at which by means of an optical reader, the CD identifier is detected, or store at an ejection position, not shown.
  • the lifting device 7e can be driven for example by means of a pneumatic cylinder or an electric drive, the timing of the rotating arms, for example, via a not shown flanged step, which makes a full revolution of 360 °, for example per clock.
  • a pneumatic cylinder or an electric drive the timing of the rotating arms, for example, via a not shown flanged step, which makes a full revolution of 360 °, for example per clock.
  • a cycle of the step transmission of the exemplified 360 ° is further subdivided into individual movement sections with, for example, the following division:
  • a complete cycle of a single removal arm 7a in this example comprises five cycles, wherein in a first cycle one or more CDs - depending on the number of gripper devices 8 used - are removed from one or more spirals 4a.
  • the gripper devices 8 of the considered rotary arm 7a are located directly above the spindles 4b in the stoppage phase of the first cycle.
  • the gripper device 8 is now moved via said lifting device 7e during standstill from a first position in the direction of the upper CDs 4 on the spindles 4a in a second position, so that the gripper device 8, the top CD 4 from the CD stack 4c on the spindle 4a can decrease.
  • the gripper device 8 is moved back on the lifting device 7e back to the first position, whereby the rotary arm 7 is again free to move freely.
  • the considered supply arm 7a is moved by 72 ° with the CDs 4 and reaches a position at which an optional optical reader is not shown can, with the help of which it is possible to read the machine-readable information stored in the inner ring of each CD, does not match this information with a stored in a parent computer system information coincide, the CD 4 is stored after the following clock and thus for another 72 ° rotation angle, at an ejection station, not shown on specially provided for this purpose spindles 4a.
  • the CD 4 remains on the gripper device 8 and is now stored after the acceleration phase of the subsequent cycle during the constant motion phase on the transport carrier 10, which moves at the same speed along the transport path 3a at this time.
  • the feed arm 7a Since the feed arm 7a carries out a circular movement during this phase, it is provided when using several gripper systems 8 to fix them each on a support arm 7g rotatably mounted on the feed arm 7a on a rotation axis 7h.
  • a mounted on the axis of rotation 7h gear 7i and a part gear 7k which is attached to one end of a rotatably mounted on an axis 7p on the arm 7a lever arm 7m, the support arm 7g can be rotated.
  • the other end 7n of the lever arm 7m, to which e.g. a roller can be arranged, is connected to a fixed cam 7o in operative connection.
  • the end 7n of the lever arm 7m slides over the edge of the cam 7o and controls the position of the arm 7g via the partial gear 7k and the gear 7i.
  • the cam 7o By a corresponding shape of the cam 7o, it is thus possible during the movement phase of storing or picking up CDs 4 on / from the carriers 10, the circular movement of the rotary arm 7 and located at its end support arm 7g the shape of the movement of the carrier 10, so as to allow a dropping / picking up of the CDs 4 on / from the carriers 10.
  • the CDs 4 centrally hang up on the transport carriers 10 and in this position It is provided that a centering device 8a is mounted on each gripper device 8 as shown in Figure 2, which causes a centering of the CD to the gripper system 8 during recording a CD 4 from the CD stack 4c and continue during the depositing movement of the CD 4 on the Transport carrier 10, the CD 4 stores centrally on the transport carrier 10, where it is fixed immediately thereafter, for example by means of a vacuum.
  • the end of the centering device 8a is designed as a convex dome 8b, against which the CD 4 is pressed on the spindle 4 a after being lifted off the CD stack 4 c in such a way that the dome 8 b engages in the centering opening 401 of the CD 4.
  • the gripper device 8 is designed with flexible vacuum suction devices 8d, this can be done by applying the vacuum to the suction devices and the contraction of the vacuum suction devices. The vacuum thus holds the CD firmly on one side and presses it with its centering opening 401 on the other side Dome 8b, whereby the CD 4 is centered on the gripper system 8.
  • the gripper system 8 can be flexibly suspended and / or press the centering opening 401 of the CD 4 with a separate controlled movement element to the dome 8b.
  • the effective diameter of the cap 8b is chosen to be larger than the maximum diameter of the centering opening 401 of the CD 4, thereby preventing jamming of the CD on the centering opening.
  • the transport carrier 10 centrally provide a concave opening 10a, in which the dome 8b engages during the discard of the CD, hereby the recorded CD 4 to the desired position centered on the transport carrier 10.
  • a concave opening 10a in which the dome 8b engages during the discard of the CD, hereby the recorded CD 4 to the desired position centered on the transport carrier 10.
  • other shapes may be chosen which serve the same purpose.
  • the radii of curvature of said dome 8b and said concave opening 10a may be the same or different radii and Since the objects to be printed may have different thicknesses, such as CDs with a nominal thickness of 1.2 mm or DVD halves with a thickness of 0.6 mm, a certain combination of cap 8b and concave opening 10a would only be for one certain thickness of the object to be printed with the required accuracy work. Namely, if the object is too thick, the dome 8b does not reach the bottom of the concave opening 10a, the object is too thin, it falls uncontrolled when switching off the vacuum of the vacuum suction 8d on the surface of the transport carrier 10. In both cases, a positionally accurate depositing is not possible.
  • the concave opening 10a on the surface of a punch 10b, which is mounted without play and via a compression spring 10c in the transport carrier 10.
  • the shape of the dome 8b is then to be designed so that for all eligible differently thick objects, the front edge 8c of the dome 8b after taking an object so far below the lower edge of the object is that the front edge 8c engages in the concave opening 10a and this depending on the thickness of the object to be printed pushes down.
  • a pressure piece 8e for example, a ball mounted on a compression spring 8f may be mounted centrally on the front edge 8c of the calotte centric to the calotte axis. This acts in a similar manner when placing the object on the transport carrier 10 such that it centrally engages in the concave opening 10a and thus the dome 8b centered with the object thereon for depositing position on the transport carrier 10 and on the other different thicknesses of the objects compensated by their resilient storage.
  • the pressure piece 8e has a smaller diameter than the smallest diameter of the centering openings of the observed objects.
  • An essential object of the invention is to enable the storage of the CDs 4 on the transport carriers 10 during the uniform movement of the otherwise cyclically operating feed system 1. As above by way of example, this can be done within the said 50 ° angle of a step of the step transmission, during which a uniform movement of the feed arms 7a takes place. These 50 ° in the example mentioned correspond to a 10 ° angle on the feed arm 7a.
  • this deviation can be in the range of + -0.01 mm to + -1 mm.
  • the gripper device 8 with the centering device 8a on the feed arm 7a can additionally be fastened via a flexible bearing 800. This ensures that when placing the CDs 4 on the transport carrier 10, the dome 8b of the centering device 8a slips into a designated concave opening 10a on the transport carrier 10 and the previously centered on the dome 8b CD 4 is now centered on the transport carrier 10 ,
  • an integrated in the transport carrier 10 vacuum system is activated, which fixes not shown channels and openings such as holes in the support surface for the CD on the surface of the transport carrier 10 a CD lying on it 4 due to the generated negative pressure, is expediently the arrangement of the openings or holes in the support surface such that a CD lying on it completely covers all the openings.
  • the individual openings and their feeds can be grouped together and controlled separately via individual valves. This has the added benefit of depending on Execution of the geometric arrangement of said openings differently sized or differently shaped CDs or other objects to be printed on the transport carriers 10 can be fixed by only the corresponding groups to the respective form ..
  • a polygonal transport path is understood to mean that several linear transport path sections adjoin one another, with adjacent linear transport path sections at an angle to each other, wherein, in particular, all linear transport path sections are of equal length and adjacent sections always have the same angle to one another.
  • the individual linear transport path sections steadily go over in one, i. unlike the mathematical polynomial, the linear sections merge in a rounded manner.
  • the number of linear transport path sections preferably corresponds to the number of transport carriers 10 used, which are loaded with CDs per cycle of the delivery system 1. If, for example, only one CD 4 is removed from a CD stack 4c of a feed spindle 4a by the feeding system 1 and placed on a transport carrier 10, the number of linear transport path sections corresponds exactly to the number of transport carriers used.
  • 10 transport carriers 10 are likewise used. If, for example, two CDs of two different CD stacks 4c of two feed spindles 4a are picked up and deposited on two different transport carriers 10, for example, by the feeding system, then the number of linear transport path sections exactly half of the transport carriers used. In the case of a number of, for example, 10 linear transport path sections, 20 transport carriers 10 are therefore used. Corresponding to the number of CDs 4 placed at the same time, adjacent transport carriers 10 are combined into groups 11, wherein the individual transport carriers are connected to one another via a joint 11a.
  • the length of the linear transport path sections in the feed region is at least as long as the sum of the total length L of such group 11 connected via joints 11a and the distance s traveled at a predetermined velocity v during the depositing process of the CDs 4 on the transport carriers 10.
  • Is there a Group 11 in the linear transport path section so also corresponds to the distance of the concave openings 10a on the storage surfaces of the summarized in a group 11 transport elements 10 the distance of the dome 8b a Zunaturalarmes 7a of the feed system. 1
  • the guide of the transport carrier 10 takes place for example in guide rails along said polygon section 3a, wherein the movement in the radial direction to the axis of rotation 16 of the drive star 13 is carried out without play by the use of, for example, V-shaped grooves and correspondingly shaped rollers.
  • the drive of the transport carrier 10 or, the groups 11 takes place via a in the center of the traverse poles.
  • the polygonal transport path arranged rotatably mounted drive star 13, which has a number of drive arms 14 corresponding to the number of transport carriers 10 and transport carrier groups 11 used in each case. These are connected at their ends via a rotation axis with the joints 11a each with a transport carrier group 11.
  • the vacuum supply required for each transport carrier 10 can take place via a common central vacuum connection in the axis 16 of the drive star 13 and thus laborious and unreliable vacuum slide rails can be avoided.
  • the axis is 16 the drive star 13 made hollow and provided with a rotatable vacuum port.
  • the required control valves for the vacuum and / or electrical control devices may be mounted, which are connected via mounted on the axis 16 slider contacts with a higher-level control and power supply.
  • the drive of the drive star 13 via a central drive motor 15 which acts, for example via play-free gears or gears on a mounted on the axis of rotation 16 of the drive star 13 central gear.
  • the speed with which the transport carriers 10 are moved is substantially constant at least during the printing process and thus synchronized with the speed of the delivery system 1 and the speed of the removal system 2 during their movement sections at a constant speed, that a synchronization between the feed system 1 and removal system 2 and Transportträgem 10 is ensured during these periods.
  • the respective drive motors of the feed system 1 and the removal system 2 are synchronized via a corresponding electronic control with the drive of the drive star 13
  • the respective treatment stations such as printing units
  • these are arranged in the linear regions 12a to 12g.
  • these can be printing units of all common printing processes such as rotary screen printing, flexographic printing, offset printing or even inkjet printing or a combination of different printing methods.
  • the speed of the printing process of the respective printing units corresponds to the speed at which the transport carriers 10 move under the printing units in the sections 12a to 12g.
  • the respective printing units in the sections 12a to 12g for example, individual drive motors such as synchronous motors have, which are synchronized via a corresponding electronic control with the drive of the drive star 13.
  • a mechanical coupling of the printing units can be made with the central drive of the drive star, which ensures an exact synchronization at any time.
  • Further treatment stations such as cleaning devices, devices for curing or drying the printing inks can also be arranged in the linear region of the polygon sections or expediently in the non-linear regions, so the rounded transitions between two linear transport path sections, provided a registration accuracy or movement accuracy of the transport carrier to the treatment stations is not required.
  • a print check system for automatically checking the printing result may comprise such imaging systems and methods the advantage that independent of the respective operator a binding and reliable statement about the quality of the printing achieved is made possible.
  • the quality of the printing on each individual CD is evaluated and stored as "GOOD” or "BAD” in an internal memory of a connected computer system.
  • the position of the CD is recorded in order for follow-up. This information can be evaluated by a separate computer system and control in the subsequent sampling system 2, the storage of the CDs, either in the output spindles for "GOOD” found CDs, or in the reject spindles for "BAD” found CDs.
  • the removal of the printed CDs 4 from the transport carriers 10 takes place in the removal system 2, which adjoins the position of the last treatment station 12g.
  • the functionality of the removal system 2 is in principle identical to the functionality of the delivery system 1 only in the reverse order of the process steps.
  • the printed CDs 4 are removed from the transport carriers 10 by means of a gripper device 80. As with the feed system 1, this takes place during the movement of the transport carriers 10, so that the rotary arm 70 with the removal arms 70a located thereon must perform the same movements and must fulfill the same conditions as in the delivery system 1.
  • the gripper device 80 By lowering the gripper device 80 from a first position to a second position by means of a lifting device 70e in the same manner as in the feed system 1, the gripper device 80 comes into mechanical contact with the CD 4 and grips the CD 4, for example by applying vacuum to existing vacuum cups. At the same time or just before this time, the CD 4 is stopped on the transport carrier 10 retaining vacuum, so that the CD 4 can be easily removed. After detecting the CD 4 with the gripper device 80 it is moved back to its first position on the lifting device 70e and stops after completion of this movement cycle outside the movement path 3a in a first position.
  • a subsequent stop position of the clocked movement of the rotary arm 70 of the removal station 2 can now be a storage station for CDs 4, which were evaluated at a previously made at said position 12g checking the printing result for "BAD". Because the position of each CD 4 on its way from the Print-Check System via a Computer system can be easily followed, it is possible in a simple way to eject such for "BAD" rated CDs separately at this reject position. It may be expedient to lower the removal arm 70a by means of the lifting device 70e from its first upper position at least as far as to a second position for depositing the CDs 4 on the spindles 4a, that a safe depositing of the CDs 4 on the spindle 4a is possible.
  • the printed CD 4 was found to be "GOOD"
  • the CD 4 remains on the gripper device 80 and is deposited after a subsequent cycle at a further position on the dedicated spindles, Again, it may be appropriate to the removal arm 70a by means of the lifting device 70e lower from its first upper position at least as far as in a second position, that a safe deposition of the CDs 4 on the spindle 4a is possible.
  • a spindle is placed by an operator on the described conveyor belt, which transports the spindle to the removal position.
  • the CD stack is raised as described so far that the top CD for the grippers of the feed arm are easy to reach.
  • the top CD is now removed from the CD stack in the feed system as already described with a gripper arm and transported to a subsequent position at which a check of the CD identification number takes place. After successful testing, the CD is placed on a transport carrier in a subsequent step.
  • the transport carrier preferably moves at a constant path speed along the described polygonal path. Along the straight stretches of the path are each individual printing stations arranged.
  • a white color is now applied to produce a white background for the image to be printed, preferably by means of a screen printing process in order to obtain a high degree of coverage.
  • a curing device for example a UV dryer, preferably immediately adjoins the printing station.
  • the color sub-images are now printed on the previously applied white background.
  • a drying device after each printing unit.
  • the number of imaging printing units depends on the number of color separations desired and corresponds to 4 printing units for conventional CMYK printing.
  • another printing station can follow, by means of which further information can be printed whose colors or varnishes can not be displayed with the previous printing units, or whose printing inks or varnishes used here do not
  • this printing station can be designed as a screen printing to apply a protective coating on the printed image.
  • These paints must be applied on the one hand relatively thick to show a corresponding protective effect, on the other hand, be relatively fluid to give a closed, shiny surface. Such coatings are not or difficult to process with offset printing.
  • variable data can also be applied by means of inkjet printing in order, for example, to generate a continuous numbering of the products.
  • a print-check system be attached, with which the print quality of the printed image can be recorded on each CD and compared with a reference image.
  • the printed CD is removed from a removal system of the respective transport carrier and stored depending on the result of the previously made rating on designated initially empty CD spindles.
  • the removal of the CD from the transport carrier takes place during the continuous movement of the transport carrier by means of a similar or the same gripper system as in the feed system.
  • CDs are placed on the aforementioned Reject Spindle only if the said review of the printed image was "BAD” for this CD; otherwise, if the result is "GOOD", this CD will be sent to the next one actual output spindle transported and stored there on the spindle.
  • FIG. 4 shows the transport path of the spindles.
  • the spindles 4a filled with unprinted CDs are placed on a continuously moving supply belt 5a by an operator, from where they are conveyed to a stop position 6a by means of the conveyor belt 5a.
  • a pneumatically controlled cylinder (not shown) protrudes in a first position the path of the spindles 4a and stops the spindles 4a initially in a waiting position, If the conveyor belt 5a designed as a link belt with lubricious plastic elements, so the conveyor belt 5a does not need to be stopped.
  • the elements of the conveyor belt 5a slide in this case under the spindles 4a therethrough, without tilting or an impermissible
  • one or more spindles 4a are conveyed to their respective working position 6c for a first filling of the feed system with spindles 4a.
  • This is done by the said pneumatic cylinder is switched from its first position to a second position in which it does not hinder the transport path of the spindles 4a.
  • the pneumatic cylinder After passing through the required number of spindles 4a, the pneumatic cylinder returns to its first position and blocks further spindles.
  • the transmitted spindles 4a are first conveyed to a second stop position 6b by means of the conveyor belt 5a, where they are pushed by means of a second pneumatic cylinder, not shown, for example transversely to the transport direction of the conveyor belt in the actual working position 6c.
  • the spindles 4a are fixed by means of a locking device, not shown, and simultaneously aligned in position to the removal arm 7, so as to allow easy removal of the CDs 4 by means of the removal arm 7.
  • the stack 4c is moved upwards by means of a lifting device into the intermediate store and to the working position for the removal, so that it is possible to use the described removal system to remove the CDs4 individually from the CD stack 4c.
  • the lifting device is first moved back to its original position and solved the fixation of the spindle and removed the now empty spindle 4a means of a transport device from the working position. Appropriately, this is done in an opposite direction to the waiting position of the following spindles.
  • the emptied spindles 4a are provided with a transport device 5b, for example under the transport system 3 through to the removal system 2, where they are transported depending on the destination to a reject position or a dispensing position.
  • the empty spindles 4a are first held in a first waiting position by means of one or more pneumatically controlled stop cylinders to then be conveyed to one of the two filling positions - working position or not shown rejecting spindle position. If a spindle is filled, it is pushed in analogy to the feed system from its working position by means of a transport system onto an output conveyor 5c, from where it can be removed by the operator. The same happens with the filled reject spindles, wherein here expediently a separate conveyor belt is used in order to exclude confusion of Rejectspindein with the output spindles.
  • FIG. 6 it is provided to integrate in each case an additional rotary table or rotary indexing table 40 in the feed system 1 and in the removal system 2.
  • CDs 4 are transported from the CD spindles 4 a of the feed system by means of parallel clocking machines 41 which operate in a more simple manner onto storage areas provided on the rotary indexing table 40 and fixed there, for example, by means of a vacuum. Since the rotary indexing table is driven clocked, can be integrated at a position of the Auflegeposition in the direction of rotation of the clock subsequent position, for example, a flat screen printing, as is customary in the printing of opaque white.
  • a flat screen printing unit for painting the printed CDs can be integrated in the removal system 2 at a similar position or the already mentioned print check system can be integrated at a further position.
  • the printing unit or coating unit is followed by a drying system.
  • the above-described delivery system is taking on one following position the white printed CDs 4 from the rotary indexing table 40 and places them in the manner described on the transport carrier 10th
  • each individual carrier 10 it is provided to carry out a movement control of each individual carrier 10 at specific positions along the transport path 3.
  • the common drive motor 15 of the rotary star 13 rotates as before with a constant speed wherein the force is transmitted as described via gears on the rotary star 13.
  • the respective drive arms 14 it is provided to carry out the respective drive arms 14 as articulated arms.
  • a first part of the articulated arm 14a is connected via a rotation axis 14b to the common turntable 17.
  • a spaced from the axis of rotation 14b mounted on the articulated arm 14a roller 14c is pressed by a tensioning device, not shown, on a fixed cam 17a. Now, when the turntable 17 is moved with the articulated arms 14a mounted thereon, the rollers 14c slide along the edge of the fixed cam 17a.
  • the articulated arm 14a is rotated more or less from a middle position.
  • a rotatably mounted at its other end transmission arm 14d which is connected to the respective carrier 10 via a rotation axis, transmits the force of the drive motor 15 to the carrier.
  • the carrier 10 is accelerated or decelerated depending on its position along the transport path through the formation of the cam.

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EP06006633A 2005-06-22 2006-03-30 Machine à imprimer Withdrawn EP1736313A2 (fr)

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DE102005029214 2005-06-22
DE102005032149A DE102005032149A1 (de) 2005-06-22 2005-07-07 Druckmaschine

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EP1736313A2 true EP1736313A2 (fr) 2006-12-27

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WO2008008029A1 (fr) * 2006-07-10 2008-01-17 Gepro Ab Dispositif de traitement d'articles comprenant des dispositifs d'entraînement se chevauchant
WO2008008030A1 (fr) * 2006-07-10 2008-01-17 Gepro Ab Dispositif de préhension permettant de distribuer des articles sur une bande transporteuse et de les retirer de celle-ci
EP2174786A1 (fr) * 2008-10-13 2010-04-14 Machines Dubuit Machine d'impression par sérigraphie et procédé d'impression associé
ITUD20090157A1 (it) * 2009-09-03 2011-03-04 Applied Materials Inc Apparato e procedimento per la lavorazione di un substrato
CN102730414A (zh) * 2012-07-18 2012-10-17 奇瑞汽车股份有限公司 取料装置
DE102016209989A1 (de) * 2016-06-07 2017-12-07 Heidelberger Druckmaschinen Ag Druckmaschine mit einzeln angetriebenen Zylindern

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DE102006037109B4 (de) * 2006-08-07 2010-11-11 Kba-Metronic Aktiengesellschaft Verfahren und Vorrichtung zur Bedruckung von Einzelobjekten
DE102009058219A1 (de) * 2009-12-15 2011-06-16 Till, Volker, Dipl.-Ing. Anlage zum Bedrucken von Behältern
US20140250659A1 (en) * 2013-03-07 2014-09-11 Cosmetic Laboratories Of America, Llc Article assembly method employing rotary article pick and place
BR102019004177A2 (pt) * 2018-03-05 2019-09-17 Ktk Lda Engrenagem cremalheira secionada para carrossel de máquina de estampar e máquina de estampar respectiva
JP2020033030A (ja) * 2018-08-27 2020-03-05 昭和アルミニウム缶株式会社 缶体製造システム

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008008029A1 (fr) * 2006-07-10 2008-01-17 Gepro Ab Dispositif de traitement d'articles comprenant des dispositifs d'entraînement se chevauchant
WO2008008030A1 (fr) * 2006-07-10 2008-01-17 Gepro Ab Dispositif de préhension permettant de distribuer des articles sur une bande transporteuse et de les retirer de celle-ci
EP2174786A1 (fr) * 2008-10-13 2010-04-14 Machines Dubuit Machine d'impression par sérigraphie et procédé d'impression associé
FR2936975A1 (fr) * 2008-10-13 2010-04-16 Dubuit Mach Machine d'impression par serigraphie et procede d'impression associe
US8516959B2 (en) 2008-10-13 2013-08-27 Machines Debuit Silk-screen printing machine and associated printing method
ITUD20090157A1 (it) * 2009-09-03 2011-03-04 Applied Materials Inc Apparato e procedimento per la lavorazione di un substrato
WO2011026885A1 (fr) * 2009-09-03 2011-03-10 Applied Materials, Inc. Appareil et procédé de traitement de substrat
CN102730414A (zh) * 2012-07-18 2012-10-17 奇瑞汽车股份有限公司 取料装置
CN102730414B (zh) * 2012-07-18 2016-01-27 奇瑞汽车股份有限公司 取料装置
DE102016209989A1 (de) * 2016-06-07 2017-12-07 Heidelberger Druckmaschinen Ag Druckmaschine mit einzeln angetriebenen Zylindern

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DE102005032149A1 (de) 2006-12-28

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