EP0488092B1 - Machine à imprimer sérigraphique - Google Patents

Machine à imprimer sérigraphique Download PDF

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Publication number
EP0488092B1
EP0488092B1 EP91120012A EP91120012A EP0488092B1 EP 0488092 B1 EP0488092 B1 EP 0488092B1 EP 91120012 A EP91120012 A EP 91120012A EP 91120012 A EP91120012 A EP 91120012A EP 0488092 B1 EP0488092 B1 EP 0488092B1
Authority
EP
European Patent Office
Prior art keywords
screen
template
arrangement according
printing
computer
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.)
Expired - Lifetime
Application number
EP91120012A
Other languages
German (de)
English (en)
Other versions
EP0488092A1 (fr
Inventor
Gerhard Klemm
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.)
Gerhard Klemm Maschinenfabrik & Co Firma GmbH
Original Assignee
Gerhard Klemm Maschinenfabrik & Co Firma 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 Gerhard Klemm Maschinenfabrik & Co Firma GmbH filed Critical Gerhard Klemm Maschinenfabrik & Co Firma GmbH
Publication of EP0488092A1 publication Critical patent/EP0488092A1/fr
Application granted granted Critical
Publication of EP0488092B1 publication Critical patent/EP0488092B1/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
    • B41F15/0831—Machines for printing webs
    • B41F15/0845—Machines for printing webs with flat screens
    • B41F15/0854—Machines for printing webs with flat screens with a stationary squeegee and a moving screen
    • 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

Definitions

  • the invention relates to a roller screen printing machine with at least one adjustably mounted screen, which has application devices and counterpressure devices as well as transport means for web guiding and surveillance cameras for reading registration marks or the like, servomotors for setting the at least one screen in the longitudinal and transverse directions are provided and the servomotors in turn are electrically connected to at least one surveillance camera for reading registration marks or the like, the pulse generator of which controls the servomotors via a computer or the like.
  • Screen printing machines which have such a possibility of adjusting the screens are known (EP-A 0 126 723).
  • the screens are adjusted as a function of a corresponding specification.
  • the registration accuracy is increased by the cameras, which may be provided in pairs at the inlet to a printing station.
  • the target and actual positions of the material to be printed are determined at the input of a printing station and the target position of the servomotors is determined therefrom. According to the determined values, the servomotors are used to adjust the screen to increase the registration accuracy.
  • the invention has for its object to design a roller screen printing machine of the type presumed to be known so that it makes it possible to determine the accuracy with which printing is carried out in each printing station.
  • This object is achieved in that a pair of cameras for querying the markings before the printing process and a further pair of cameras for querying the markings after printing are provided in each printing station.
  • Such an arrangement of four cameras allows the printing accuracy to be determined in each printing station. It becomes possible to specify tolerances per printing station and to provide appropriate signals or markings when exceeded. This makes it possible to control the print quality separately in each individual printing station and not only at the end of the entire printing process. Furthermore, with such a roller screen printing machine, the screens can be set up automatically in each station.
  • the entire device can work variably, depending on which computer system is used and which accuracy is required in the first order, or how many color orders are run in succession.
  • the printing result can be achieved in an accuracy range that is far away from known results. Uncertainties from the transport of goods and from the goods themselves are excluded, or compensated or compensated for.
  • difference value is understood to mean the length deviation between the original and the actual print. This is entered into the computer in the + or - direction.
  • the pulse generator is used to evenly distribute the difference value over the entire print image. For example, if the difference is in the plus 0.10 and the pulse generator delivers 10 pulses for a print image, each correction is 0.01mm / pulse.
  • the invention is seen in the fully automatic print registration, which adjusts two or more stencils to the positional accuracy achieved in the stencil production for the respective print job.
  • the fully automatic registration in the machine 1 shown should be able to apply at least two colors to one another in such a way that the register marks used are accurate to e.g. Stand +/- 0.05mm to each other. If no register marks are used, which may happen in special cases, the single point query should not show any major difference.
  • the position of the first printing ink must be recognized and the screen of the color to be applied next corrected before the further printing ink is applied.
  • the printing station 2 shown, in the screen printing machine 1 shown only partially in FIG. 1, preferably has two cameras 5, 5 'lying parallel to one another in the inlet of the web 3 below the screen 4. In the exemplary embodiment shown in FIG. 1, these are located in front of an impression cylinder 6 which has suction holes 16.
  • a sieve frame 4 ' carries the sieve 4, and lies in a longitudinally and transversely movable carriage 44. This carriage 44 is in turn supported in a support frame 40 which carries the servo motors 9, 9', 9 '' which move the carriage 44.
  • connection between screen printing machine 1 and computer 8 can take place via cable 18 if one does not prefer a radio connection.
  • the mounting of the screen template 4 with its screen frame 4 ' is shown in FIG. 1, the screen or template frame 4' in turn being fitted into a carriage 44 which bears against the servomotors 9, 9 ', 9''.
  • the servomotors 9, 9 ', 9''are designed as stepper motors.
  • the number of steps / revolution can be, for example, 1000 / 1U, so that an exact correction of the position of the screen template can be carried out in the longitudinal and / or transverse direction.
  • the servomotors 9.9 ', 9''are firmly attached to the support frame 40. Depending on the specification of the computer 8 and the reading modalities of the camera pairs 5.5' and 7.7 ', they are actuated in order to set the screen printing stencil precisely for everyone to ensure individual pressure.
  • the actuators or stepper motors work precisely.
  • the template frame 4 ' is inserted into the carriage 44.
  • Springs 11 ensure that a cross bar 41 of the slide 44 is pressed evenly onto the servomotors. This is a guarantee that the work of the servomotors, which are designed as stepper motors, is transferred exactly to the stencil and that their position during printing is guaranteed.
  • the area "a" in the screen printing stencil 4 drawn corresponds to the actual printing, for example 299 mm.
  • the template is 1 mm larger, for example, 300 mm and thus the area "b" is the processing error or the "difference value" of 1 mm. This value is measured and entered once.
  • the pressure cylinder 6 is connected to a pulse generator 16 which emits, for example, 1 pulse / 10 mm.
  • Such additional movements with this precision are only possible via the computer or computer control. This is the default input for each print sequence and is important, especially if high-quality prints, eg printed circuit boards, are to be printed, which often happens.
  • the stencil frame 4 shows the mounting of the screen template 4 with its frame 4 'and the adjustment frame or slide 44.
  • the stencil frame 4 'lies in the carriage 44 and by moving it by means of the actuating or stepping motors 9, 9', 9 '', the lateral adjustment or displacement and also the forward and return movement are effected, the stepping motors , as mentioned, can be controlled by the computer 8.
  • This is supplied with data even by the camera pairs 5.5 'and 7.7'. The data is thus determined before the run-in and after the paint application. At the first print, only the registration marks are checked and the difference value is taken into account.
  • the second and subsequent pressure is carried out in the stations by the displacement of the carriage in which the templates are located, based on the camera values determined, exactly by the servomotors 9, 9 ', 9''controlled by the computer 8. Possibly. Errors are immediately detected and immediately avoided without rejects being produced continuously.
  • This idea of fully automatic print registration can be realized on single-station printers where the web is run several times and also in multi-color screen printing machines. If two cameras 5.5 'and 7.7' are shown in the example, this is very advantageous, with only one camera in the inlet leg and one in the outlet leg of the web, the detection of possible angular errors is missing. 5 shows a drive diagram for three stations.
  • a push rod 13 moved via a rocker arm 12 takes all the desired stations evenly, in each station the position of the template is separated from the cameras and the computer 8. regulated about the displacement of the carriage 44.
  • the idea of the invention is not limited to the exemplary embodiment shown, so variations are conceivable and possible.
  • the screen printing machine can have only one station through which it is driven several times, or a number of stations, possibly with intermediate drying. That must be left to the circumstances. It is advantageous to equip each station with the monitoring device described, or according to the circumstances.
  • the computer or computer is also freely selectable, with or without screens 8 ', 8'', and with or without a display 81, which monitors control of the activation of the cameras and the motors, or monitors other functions of the machine.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Screen Printers (AREA)
  • Non-Metallic Protective Coatings For Printed Circuits (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Manufacturing Of Printed Wiring (AREA)

Claims (9)

  1. Machine à imprimer sérigraphique à rouleaux avec, au moins, un écran monté réglable, présentant des dispositifs d'application et des dispositifs de contrepression, ainsi que des moyens de transport au guidage de bande et des caméras de surveillance pour la lecture de repères ou marques analogues, des servomoteurs étant prévus pour le réglage longitudinal et transversal d'au moins un écran et reliés, de leur côté, électriquement à une caméra de surveillance, au moins,pour la lecture des repères ou marques analogues, les transmetteurs d'impulsions commandant les servomoteurs par l'intermédiaire d'un ordinateur ou installation analogue,
    caractérisée en ce que
    chaque poste d'impression (2) est équipée de deux caméras de surveillance (5, 5') pour l'interrogation des marquages avant l'opération d'impression et de deux autres caméras (7, 7') pour l'interrogation des marquages après l'impression.
  2. Dispositif selon la revendication 1,
    caractérisé en ce que
    le(s) gabarit(s) d'écran(s) (4) sont placés, avec son/leur cadre(e) (4') dans un cadre de réglage resp. un chariot (4), dans lequel ils sont disposés contrôlés et déplaçables, commandés par ordinateur.
  3. Dispositif selon la revendication 1 ou 2,
    caractérisé en ce que
    plusieurs gabarits d'écran (4), de préférence placés dans leurs chariots (44) ou analogues sont reliés ensemble par l'intermédiaire d'une bielle (13) et que l'unité complète peut être mue à l'aide d'une bielle oscillante (12) resp. d'un mécanisme à bielle ou manivelle.
  4. Dispositif selon l'une ou plusieurs des revendications 1 à 3,
    caractérisé en ce que
    une caméra, au moins, est disposée et reliée à l'ordinateur (8) de sorte qu'une branche d'arrivée ou une branche de sortie du guidage de bande, située en amont ou en aval de la zone d'application, puisse être saisie par la caméra.
  5. Dispositif selon l'une des revendications 1 à 4,
    caractérisé en ce que
    le cadre de réglage ou le chariot (44) est relié aux servomoteurs (9, 9', 9'') aux fins de son déplacement longitudinal et/ou transversal avec le gabarit (4).
  6. Dispositif selon les revendications 1 à 5,
    caractérisé en ce que
    les servomoteurs, prévus pour le déplacement des gabarits d'écrans, sont disposés de sorte que deux servomoteurs (9, 9'), travaillant séparément, commandent le gabarit d'écran dans le sens de marche (A-B) de la bande et inversement resp. en position oblique, un servomoteur (9''), au moins, la commandant dans le sens transversal (C-D).
  7. Dispositif selon la revendication 6,
    caractérisé en ce que
    le gabarit d'écran (4') resp. son chariot (44) est pourvu d'un doigt (14) à l'aide duquel le servomoteur (9'') est fixé pour la commande transversale du gabarit.
  8. Dispositif selon l'une ou plusieurs des revendications 1 à 7,
    caractérisé en ce que
    une mise en circuit de la valeur de différence est prévue dans l'ordinateur ou le calculateur (8) pour les servomoteurs (9,9').
  9. Dispositif selon l'une ou plusieurs des revendications 1 à 8,
    caractérisé en ce que
    le chariot (44) appuie, sous l'action d'un ressort de traction (11), sur les servomoteurs (9, 9') et peut être bloqué dans le plan de l'écran.
EP91120012A 1990-11-27 1991-11-23 Machine à imprimer sérigraphique Expired - Lifetime EP0488092B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4037678 1990-11-27
DE4037678A DE4037678A1 (de) 1990-11-27 1990-11-27 Siebdruckmaschine

Publications (2)

Publication Number Publication Date
EP0488092A1 EP0488092A1 (fr) 1992-06-03
EP0488092B1 true EP0488092B1 (fr) 1995-06-14

Family

ID=6418993

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91120012A Expired - Lifetime EP0488092B1 (fr) 1990-11-27 1991-11-23 Machine à imprimer sérigraphique

Country Status (5)

Country Link
US (1) US5245922A (fr)
EP (1) EP0488092B1 (fr)
AT (1) ATE123697T1 (fr)
DE (2) DE4037678A1 (fr)
RU (1) RU2053128C1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19614740A1 (de) * 1996-04-15 1997-10-16 Kammann Maschf Werner Verfahren und Vorrichtung zum Bedrucken von selbsttragenden Einzelobjekten

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3292535B2 (ja) * 1993-03-01 2002-06-17 理想科学工業株式会社 孔版印刷装置および版胴
US5301608A (en) * 1993-06-04 1994-04-12 Precision Screen Machines, Inc. Index control system for printing apparatus
DE4402338B4 (de) * 1994-01-27 2004-04-08 Heidelberger Druckmaschinen Ag Verfahren zum Steuern von geometrischen Veränderungen eines Bedruckstoffes bei einem Betriebsvorgang des Druckens und Trocknens eines Druckbilds
US5553536A (en) * 1994-10-03 1996-09-10 Van Os Enterprises Screen printing apparatus with vacuum conveyor belt
US5649479A (en) * 1994-10-13 1997-07-22 M & R Printing Equipment, Inc. Ink recovery device
US5483884A (en) * 1994-10-31 1996-01-16 At&T Corp. Method and apparatus for setting up a stencil printer
JPH08216492A (ja) * 1995-02-10 1996-08-27 Riso Kagaku Corp 押圧印刷装置
IT1275147B (it) * 1995-02-14 1997-07-30 Viero Srl Impianto perfezionato per la stampa di tessuti e simili
US5567063A (en) * 1995-03-28 1996-10-22 Nk Techology Ltd. Cordless printing head control system
US5860406A (en) * 1996-04-10 1999-01-19 Caterpillar Inc. Engine timing apparatus and method of operating same
US5777878A (en) * 1996-06-04 1998-07-07 Preco Industries, Inc. Screen printing press having longitudinal, lateral and angular screen frame registration system and method
DE19703312A1 (de) * 1997-01-30 1998-08-06 Rk Siebdrucktechnik Gmbh Verfahren zur Steuerung einer Siebdruckzylindermaschine
US6192795B1 (en) * 1997-09-16 2001-02-27 Hix Corporation Screen printing apparatus with independent screen adjustment
DE19838983A1 (de) * 1998-08-27 2000-03-02 Kammann Maschf Werner Siebdruckvorrichtung
JP2001062995A (ja) * 1999-08-30 2001-03-13 Minami Kk スクリーン印刷機
DE10222119B4 (de) 2002-05-17 2004-11-11 Asys Automatisierungssysteme Gmbh Vorrichtung und Verfahren zum Einstellen der relativen Lage zwischen einem zu bedruckenden Substrat und einem Druckmuster
AU2002313168A1 (en) * 2002-06-04 2003-12-19 Tricksy S.R.L. Screen printing machine having a replaceable ink jet printing unit
EP2380739B8 (fr) * 2010-04-22 2014-02-19 Manz AG Systeme de positionnement d'un stencil d'impression pour une unité d'impression sérigraphique
JP6510845B2 (ja) * 2015-03-23 2019-05-08 株式会社セリアエンジニアリング スクリーン印刷機
CN107042684B (zh) * 2017-05-27 2022-11-15 张永胜 一种自动定位的丝网印刷平台

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IT1077414B (it) * 1977-07-19 1985-05-04 Reggiani Spa Procedimento per la stampa in continuo,a piu' colori,delle spugne,tessuti elasticizzati e simili e relativa apparecchiatura
DE2812099C3 (de) * 1978-03-20 1982-02-25 Gerhard Ing.(grad.) 4800 Bielefeld Klemm Vorrichtung zum Transport von luftundurchlässigen Warenbahnen, wie Papier -oder Folienbahnen
SE440204B (sv) * 1979-04-23 1985-07-22 Svecia Silkscreen Maskiner Ab Sett och anordning att injustera ett tryck pa ett material
DE2943893C2 (de) * 1979-10-31 1984-12-20 Gerhard Ing.(grad.) 4800 Bielefeld Klemm Vorrichtung zum Bedrucken von Warenbahnen mit einer Siebdruckstation
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EP0126723A3 (fr) * 1983-05-18 1986-10-29 Svecia Silkscreen Maskiner AB Procédé et dispositif pour le positionnement d'un second dessin provenant d'un dessin réalisé sur un pochoir, par rapport à un matériau destiné à porter ce dessin
DE3334444A1 (de) * 1983-09-23 1985-04-11 Gerhard 4800 Bielefeld Klemm Siebdruckmaschine
SE8405067L (sv) * 1984-10-10 1986-04-11 Svecia Silkscreen Maskiner Ab Anordning for att i en stenciltryckmaskin orientera ett fran ett forsta pa en stencil utbildat monster herrorande andra monster i forhallande till ett for monstret avsett material (samtidig stegmotorpaverkan)
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EP0311729A1 (fr) * 1987-10-10 1989-04-19 Johannes Zimmer Procédé et dispositif pour le positionnement d'éléments d'impression cylindriques dans une machine d'impression avec au moins deux stations d'impression
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19614740A1 (de) * 1996-04-15 1997-10-16 Kammann Maschf Werner Verfahren und Vorrichtung zum Bedrucken von selbsttragenden Einzelobjekten

Also Published As

Publication number Publication date
US5245922A (en) 1993-09-21
EP0488092A1 (fr) 1992-06-03
ATE123697T1 (de) 1995-06-15
DE4037678A1 (de) 1992-06-04
DE59105713D1 (de) 1995-07-20
RU2053128C1 (ru) 1996-01-27

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