EP0805024A2 - Machine rotative d'impression sérigraphique pour imprimer des images grandes - Google Patents

Machine rotative d'impression sérigraphique pour imprimer des images grandes Download PDF

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Publication number
EP0805024A2
EP0805024A2 EP97105871A EP97105871A EP0805024A2 EP 0805024 A2 EP0805024 A2 EP 0805024A2 EP 97105871 A EP97105871 A EP 97105871A EP 97105871 A EP97105871 A EP 97105871A EP 0805024 A2 EP0805024 A2 EP 0805024A2
Authority
EP
European Patent Office
Prior art keywords
printing
individual
templates
rotary screen
lifting
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
Application number
EP97105871A
Other languages
German (de)
English (en)
Other versions
EP0805024A3 (fr
EP0805024B1 (fr
Inventor
Josef Juffinger
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.)
Stork Brabant BV
Original Assignee
Stork MBK 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 Stork MBK GmbH filed Critical Stork MBK GmbH
Publication of EP0805024A2 publication Critical patent/EP0805024A2/fr
Publication of EP0805024A3 publication Critical patent/EP0805024A3/fr
Application granted granted Critical
Publication of EP0805024B1 publication Critical patent/EP0805024B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B41F15/10—Machines for multicolour printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/08—Machines
    • B41F15/0831—Machines for printing webs
    • B41F15/0836—Machines for printing webs by means of cylindrical screens or screens in the form of endless belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2213/00—Arrangements for actuating or driving printing presses; Auxiliary devices or processes
    • B41P2213/70—Driving devices associated with particular installations or situations
    • B41P2213/73—Driving devices for multicolour presses
    • B41P2213/734—Driving devices for multicolour presses each printing unit being driven by its own electric motor, i.e. electric shaft
    • 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
    • B41P2217/52—Printing presses for particular purposes for printing a long repeat length on webs

Definitions

  • the invention relates to a rotary screen printing machine for printing large images by means of a plurality of circular templates synchronized with respect to their relative rotational speed, which, according to a partial repeat, can optionally be lifted out of their printing position and lowered onto the goods to be printed.
  • Document EP 0 396 924 B1 which forms the preamble of claim 1, describes a rotary screen printing machine for printing large images by means of a plurality of circular stencils which are synchronized with respect to their relative speed and which, according to a partial repeat, can optionally be lifted out of their printing position and lowered onto the goods to be printed and each with a single drive for template turning are provided.
  • This machine also has the problem of complex adjustment.
  • the invention is therefore an object of the invention to provide a rotary screen printing machine for printing large repeat images, in which a pattern change can be carried out comparatively very quickly and with which a very precisely fitting print quality can be achieved without the need for larger quantities when upgrading or converting the machine Rejects, loss of printing paste and the like must be accepted.
  • the achievement of the object is characterized in that the circular templates each have a single lifting drive for lifting and lowering the individual circular templates, the individual lifting drives being individually and incrementally actuatable by a programmable controller.
  • Each rotary individual drive and the acceleration of the circular templates can preferably be set individually and incrementally relative to the other rotary individual drives to a speed that is synchronous with the printing blanket by means of a programmable control.
  • the individual drives are preferably - as is known in principle from EP 0 396 924 B1 - realized by stepper motors which can be operated in continuous operation.
  • All drive and setting parameters for a single circular template can be specified and changed via the program control, either from a central master computer unit or via individually assigned, parameterizable control units.
  • FIG. 1 shows in a schematic functional representation, which corresponds to that of FIG. 1 in EP-0 366 924 B1, a rotary screen printing machine set up for printing large-scale images, in which program-controllable individual drives are provided for the individual printing stations with the simultaneous possibility of the round stencils / printing stencils of the printing stations can be lifted and lowered individually and also under program control.
  • a drive roller 14 and a tension roller 11 are provided for a rotating printing blanket 3 in the rotary screen printing machine. Furthermore, three printing units are shown as an example, which in a manner known per se only have printing stencils 4 indicated only schematically and each have a stencil drive pinion 12 mounted laterally and below the printing blanket 3 (the printing blanket).
  • the printing blanket 3 is driven via the drive roller 14 by means of a direct current motor 1, which is regulated by a converter 2, which is controlled analogously via a master computer 8.
  • a pulse generator 7, which is assigned to the tensioning roller 11 and which generates a digital signal f m corresponding to the speed of movement of the printing blanket 3, is provided as all the individual drives of the printing templates.
  • a frequency divider 9 connected downstream of the pulse generator 7 reduces the digital signal f m with a ratio that can be determined by the master computer 8 and feeds the corresponding digital signals to the master computer 8.
  • These digital signals are processed in the master computer 8 in a known manner to digital control signals which are supplied to a plurality of sub-computers (CPU) 6 corresponding to the number of printing templates 4 with a downstream power driver for a respective stepper motor 5.
  • the printing stencils 4 are driven with an angular position (phase position) that is exactly constant relative to one another.
  • Fig. 1 only three printing stencils 4 are shown with associated drive units; however, it is obvious that any number of stencils 4 can be driven in the same way.
  • each printing unit (each printing stencil) is assigned a lifting cylinder 16, which can be pressurized with pressure fluid via a valve that can be controlled digitally from the host computer 8, with the lifted upper end position by an upper limit switch 13 and the lowered lower pressure position are determined by a further limit switch 17.
  • the positioning of the individual printing templates takes place - as explained in more detail below - in a time-controlled manner and depending on the setting of the limit switches 13, 17.
  • the position of the printing unit raising / lowering can be inductively, capacitively, opto-electronically, by ultrasonic sensors and by potentiometers or electronic sensors the like.
  • screw jacks 20 are provided for the correct raising and lowering of the printing stencil, which can be driven via direct current motors 21 or stepper motors.
  • a linear potentiometer 22 is provided for the exact position determination of the position of a respective printing template, the readout value of which is given as a read-in value to the host computer 8 via a respective analog / digital converter 23.
  • inductive proximity sensors could also be used in each case.
  • FIG. 3 clearly shows the module assignment for a specific and implemented exemplary embodiment of the invention, the stepping motor 5 for the template drive including the associated stepper motor 21 with an associated reference sensor for determining an end position via the screw jack 20 assigned gear box 25, the printing template 4 can be incrementally raised and lowered again.
  • the pattern 32 shown in FIG. 4 should be printed, for example as a multicolored print, and a cut line 30 or 31 in the direction of passage or printing in front of and behind the pattern 32.
  • the pattern 32 has a maximum pattern length of, for example, 500 mm .
  • the repeat length of the cutting lines 30, 31 can be variable.
  • the printing blanket 3 is set in motion.
  • the assigned cutting line template that is to say the first circular template 4 in area a - see time diagram under the pattern of FIG. 4 - is accelerated to the synchronous speed with the printing blanket 3 and, at the same time, not position-dependent, and simultaneously lowered.
  • a working magnet (not shown) arranged under the printing blanket is switched on, which attracts a roller or doctor blade inside the circular stencil 4 in a known manner with a predetermined magnetic force.
  • section line 30 or 31 is printed.
  • the printing process is ended at the latest at time d, whereupon the printing stencil 4 is lifted off again in the period e and, depending on the diameter and repeat length, is possibly delayed or stopped to a lower rotational speed.
  • the template 4 assigned to the pattern 32 is lowered and at the same time accelerated to the synchronous speed with the printing blanket 3.
  • the working magnet assigned to this template is switched on.
  • the pattern 32 is printed within the time slot g, it being emphasized that the pattern 32 can also be composed of the printing of a number of templates, that is to say it can be designed in multiple colors. If a multicolored print is desired for the pattern 32 and / or the cutting lines 30, 31, a correspondingly higher number of groups of printing stations must be provided.
  • the working magnet is switched off and the corresponding template is lifted off and, according to its diameter and the partial repeat to be printed, decelerated in the period h to a lower speed or to a standstill.
  • the acceleration of the individual printing stencils 4 and their lowering or lifting off are controlled in such a way that the individual stencil 4 is in synchronism with the printing blanket 3 when it first comes into contact with the printing blanket and is precisely positioned in the repeat.
  • a repeat i.e. a large repeat each consists of a first cutting line 30 and the pattern 32.
  • the second cutting line belongs to the second repeat that follows. Repeat length, pattern length and template offset are variable.
  • a repeat does not necessarily have to include a cutting line; it can also - as is usually the case - be assembled from several equivalent templates.
  • the individual printing stencils 4 are already lowered in the non-engraved area, so that the magnetic force for lowering the roller or coating squeegee can be switched on, and a color wedge forms in good time, as a result of which stable conditions for good print quality before the actual printing process begins.
  • the system arrangement of a rotary screen printing machine according to the invention can also be used for other coating and metering systems, especially also when using non-magnetic roller and doctor blade variants; i.e. the variant described here with a magnetic roller or doctor blade is not the only variant to be adopted in connection with the invention.
  • a partial repeat is printed by a template 4, i.e. if the relative position of the template 4 to the printing blanket 3 is again in an area that is not engraved, the working magnet is switched off again (see times d, d ', d''... in Fig 4).
  • the relevant template 4 is raised and decelerated so that it is again in the starting position, for example, when it comes to a standstill.
  • an eccentric or a swash plate with a stepping motor or with a DC motor drive can also be used; in the latter case again equipped with a potentiometer and position sensors.
  • a rotary screen printing machine of the type according to the invention is suitable for all goods to be printed or coated, but preferably for fabrics, woven goods, floor coverings, carpets, foils and the like.
  • a rotary screen printing machine of the type described here can also be used as a normal rotary screen printing machine (continuous repeat) and, because of the possibility of printing images without mechanical changes, can also be used as a replacement for a planographic printing machine, that is to say not only for large-repeat images.
  • the setting and conversion of such a machine to different patterns is very easy thanks to digitally inputable default values, correction and change parameters, so that no specially trained specialist personnel are required.
  • Stencils that do not run in the image printing process can be operated in normal rotary printing (continuous repeat) during the image printing process.
  • the stencil pressure meters are freely selectable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Screen Printers (AREA)
  • Printing Methods (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
EP97105871A 1996-04-30 1997-04-09 Machine rotative d'impression sérigraphique pour imprimer des images grandes Expired - Lifetime EP0805024B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19617355 1996-04-30
DE19617355A DE19617355C2 (de) 1996-04-30 1996-04-30 Rotationssiebdruckmaschine zum Drucken großer Bilder

Publications (3)

Publication Number Publication Date
EP0805024A2 true EP0805024A2 (fr) 1997-11-05
EP0805024A3 EP0805024A3 (fr) 1998-01-14
EP0805024B1 EP0805024B1 (fr) 1999-12-01

Family

ID=7792941

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97105871A Expired - Lifetime EP0805024B1 (fr) 1996-04-30 1997-04-09 Machine rotative d'impression sérigraphique pour imprimer des images grandes

Country Status (3)

Country Link
EP (1) EP0805024B1 (fr)
AT (1) ATE187124T1 (fr)
DE (2) DE19617355C2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101224658B (zh) * 2007-01-19 2010-09-22 陆新田 一种改良的印花机
CN107160839A (zh) * 2017-05-31 2017-09-15 林金标 一种圆网转移印花机及其控制系统
CN114252335A (zh) * 2021-12-21 2022-03-29 黑龙江省公路工程监理咨询有限公司 一种公路路面压实度实时检测装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20202708U1 (de) * 2002-02-21 2003-07-03 Tima Tec Maschinen Und Anlagen Rundschablonen-Drucksystem
DE10226500B4 (de) * 2002-06-14 2010-04-22 Ball Packaging Europe Holding Gmbh & Co. Kg Vorrichtung zur Oberflächenbearbeitung von Teilen
DE102007049315B4 (de) * 2007-10-15 2010-07-08 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zum Bearbeiten eines Substrates

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2254190A1 (de) * 1971-11-15 1973-05-17 Peter Zimmer Druckmaschine
US3774534A (en) * 1971-12-15 1973-11-27 S Ichinose Rotary screen printing machine
DE2642956A1 (de) * 1975-10-06 1977-04-14 Kufstein Schablonentech Gmbh Rotationsschablonendruckmaschine
EP0396924A2 (fr) * 1989-05-11 1990-11-14 Stork MBK GmbH Dispositif pour la transmission synchronisée de plusieurs écrans d'une machine de sérigraphie rotative

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT311289B (de) * 1971-05-24 1973-11-12 Zimmer Peter Verfahren und Einrichtung zum kontinuierlichen Drucken großrapportiger Muster
DE7230388U (de) * 1971-09-06 1973-12-06 Zimmer P Rotationsschablonendruckmaschine
DE7332801U (de) * 1972-09-08 1975-03-06 Zimmer P Druckvorrichtung zum Bedrucken abgepasster Stücke einer Warenbahn
ES8506410A1 (es) * 1983-05-31 1985-07-01 Fraver Sa Un procediminento para transportar y tratar o trabajar en continuo un soporte flexible deformable de preferencia virgen,tal como una cinta.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2254190A1 (de) * 1971-11-15 1973-05-17 Peter Zimmer Druckmaschine
US3774534A (en) * 1971-12-15 1973-11-27 S Ichinose Rotary screen printing machine
DE2642956A1 (de) * 1975-10-06 1977-04-14 Kufstein Schablonentech Gmbh Rotationsschablonendruckmaschine
EP0396924A2 (fr) * 1989-05-11 1990-11-14 Stork MBK GmbH Dispositif pour la transmission synchronisée de plusieurs écrans d'une machine de sérigraphie rotative

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101224658B (zh) * 2007-01-19 2010-09-22 陆新田 一种改良的印花机
CN107160839A (zh) * 2017-05-31 2017-09-15 林金标 一种圆网转移印花机及其控制系统
CN107160839B (zh) * 2017-05-31 2019-04-30 林金标 一种圆网转移印花机及其控制系统
CN114252335A (zh) * 2021-12-21 2022-03-29 黑龙江省公路工程监理咨询有限公司 一种公路路面压实度实时检测装置

Also Published As

Publication number Publication date
DE59700782D1 (de) 2000-01-05
EP0805024A3 (fr) 1998-01-14
DE19617355A1 (de) 1997-11-13
DE19617355C2 (de) 2000-02-03
EP0805024B1 (fr) 1999-12-01
ATE187124T1 (de) 1999-12-15

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