EP3863856B1 - Screen printing device having a screen printing stencil as well as using method - Google Patents

Screen printing device having a screen printing stencil as well as using method Download PDF

Info

Publication number
EP3863856B1
EP3863856B1 EP19723409.9A EP19723409A EP3863856B1 EP 3863856 B1 EP3863856 B1 EP 3863856B1 EP 19723409 A EP19723409 A EP 19723409A EP 3863856 B1 EP3863856 B1 EP 3863856B1
Authority
EP
European Patent Office
Prior art keywords
printing
screen
doctor blade
printing device
printed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP19723409.9A
Other languages
German (de)
French (fr)
Other versions
EP3863856A1 (en
Inventor
Gerald Jeretzky
Ralf-Rudi Redeker
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.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer AG
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 Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP3863856A1 publication Critical patent/EP3863856A1/en
Application granted granted Critical
Publication of EP3863856B1 publication Critical patent/EP3863856B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F15/00Screen printers
    • B41F15/14Details
    • B41F15/40Inking units
    • B41F15/42Inking units comprising squeegees or doctors
    • B41F15/423Driving means for reciprocating squeegees
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F15/00Screen printers
    • B41F15/08Machines
    • B41F15/0804Machines for printing sheets
    • B41F15/0813Machines for printing sheets with flat screens
    • B41F15/0818Machines for printing sheets with flat screens with a stationary screen and a moving squeegee
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F15/00Screen printers
    • B41F15/08Machines
    • B41F15/0863Machines with a plurality of flat screens mounted on a turntable
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F15/00Screen printers
    • B41F15/08Machines
    • B41F15/0872Machines for printing on articles having essentially cylindrical surfaces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F15/00Screen printers
    • B41F15/08Machines
    • B41F15/0872Machines for printing on articles having essentially cylindrical surfaces
    • B41F15/0877Machines for printing on articles having essentially cylindrical surfaces of varying cross-section
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F15/00Screen printers
    • B41F15/08Machines
    • B41F15/0895Machines for printing on curved surfaces not otherwise provided for
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F15/00Screen printers
    • B41F15/14Details
    • B41F15/16Printing tables
    • B41F15/18Supports for workpieces
    • B41F15/30Supports for workpieces for articles with curved surfaces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F15/00Screen printers
    • B41F15/14Details
    • B41F15/44Squeegees or doctors
    • B41F15/46Squeegees or doctors with two or more operative parts

Definitions

  • the invention relates to a screen printing device with a screen printing stencil according to the preamble of claim 1 and a method for using the same.
  • a screen printing device with at least two squeegee systems involved alternately in the printing process, the squeegee systems being guided in a circumferential manner by chains, with the respective squeegees being used alternately and being returned to their starting point after the printing process is complete.
  • the squeegee run z. B. against each other by a constant phase angle of z. B. offset from 180 °.
  • the squeegee blades can be guided by two endless chains arranged side by side and parallel to each other.
  • a screen printing device with a screen printing stencil can be removed, with at least two squeegee systems each acting on this screen printing stencil being provided, with the at least two squeegee systems being arranged in the same printing process to apply printing ink to an object to be printed, each of these squeegee systems having at least one squeegee, each of these squeegees being arranged to sweep over the screen printing stencil, each of these squeegee systems being individually controlled by a control unit.
  • a screen printing device with a printing screen, a printing squeegee and a support for a print material to be printed is known, wherein at least one articulated-arm robot is provided for moving the printing squeegee and/or the support relative to the printing screen.
  • a screen printing device for printing curved surfaces is known, with a printing squeegee, a printing screen held in a screen frame and means for moving the printing squeegee, the screen frame being flexible at least in sections on at least one side.
  • the DE 10 2005 006 732 A1 contains the reference to a printing squeegee attached to a squeegee holder, the squeegee holder being guided by guide arms, it being possible for these guide arms to be the arms of a free-form robot which is not further specified.
  • the DE 44 31 596 C1 relates to a device for printing the surface of objects, with a printing device and two mutually independent compound slides which are opposite one another in relation to a central plane and can be moved parallel to one another, each of which has holders for receiving and handling the objects during the printing process, which project into the central plane lying between the planes of movement of the two compound slides and cover one and the same field of motion in this plane and can be moved with the aid of the cross slides in such a way that they pick up the objects to be printed directly from a feed conveyor, feed them to the printing device and, after printing, set them down on a discharge conveyor.
  • This device can be designed as a screen printing machine.
  • the DE 11 2012 005 138 T5 relates to a mask holder for holding a mask to be brought into contact with a substrate in a screen printing machine, the mask holder comprising: right and left side support parts that support both the right and left sides of the mask set horizontally from the front; an actuator capable of a moving operation in a front-back direction with respect to the right and left side support members; a rod member provided so as to extend along a lateral portion of the right and left side support members in the front-rear direction such that a front end of the rod member is connected to the operating member; a trailing edge stopper which is connected to a rear end of the rod member and is moved in the front-rear direction by the rod member by the moving operation in the front-back direction with respect to the right and left side support members by the operating member and by the fixing operation of the rod member is fixed to the right and left side support parts by the operating member on the right and left side support parts and which is abutted against a rear edge of the mask whose right and left sides are
  • the WO 2008/083257 A2 relates to an apparatus for printing designs or images on a small or limited area of a substrate.
  • the apparatus includes a screen printing assembly, a print head, and a guide assembly.
  • a squeegee and a flood bar of the printhead are positioned at a predetermined position.
  • the invention is based on the object of creating a screen printing device with a screen printing stencil, wherein the use of at least two squeegee systems each acting on this screen printing stencil is flexibly adapted or at least adaptable to the object to be printed.
  • a screen printing stencil 01 in particular a flat printing screen stencil, is in a z. B. stationarily arranged preferably rectangular in particular rigid frame 02 and z. B. arranged in a linear printing machine or in a rotary table printing machine.
  • a linear printing machine having a screen printing device is e.g. B. from the DE 10 2017 214 073 A1 known.
  • a rotary table printing machine having a screen printing device is e.g. B. from the EP 2 995 453 A1 known. Both types of printing machine are used to print objects 03, which z. B.
  • the object 03 to be printed is usually stored in a transport system and is guided through the printing machine by means of the transport system, with the object to be printed 03 is arranged at least briefly on the screen printing stencil 01 by the relevant transport system during the printing process, ie is positioned there, preferably below the screen printing stencil 01.
  • the lateral surface of the relevant in the printing process z. B. is printed on an object 03 rotating about its longitudinal axis 24 in that the object 03 to be printed is unrolled in contact with the screen printing stencil 01.
  • a larger number of objects 03 are preferably printed sequentially by the screen printing device, e.g.
  • the relevant screen printing device in a linear printing machine or in a rotary table printing machine.
  • the screen printing device is working in an industrial printing process for printing mass-produced articles, in particular round bodies 03 or hollow bodies 03, e.g. B. the respective lateral surface of bottles made of glass or plastic, preferably bottles for beverages or cosmetics.
  • each doctor blade systems 04; 06 in each case at least one squeegee 07; 08, each of these squeegees 07; 08 is arranged sweeping over the screen printing stencil 01.
  • Each of these doctor blades 07; 08 thus performs a relative movement with respect to the screen printing stencil 01, which is preferably arranged in a stationary manner.
  • the at least one squeegee 07; 08 of each of the squeegee systems 04; 06 is in a plane E1; E2 out, these levels E1; E2 spaced apart and arranged parallel to each other.
  • the at least one squeegee 07; 08 of each of the squeegee systems 04; 06 is in particular in a vertical plane E1; E2 led.
  • the respective squeegee 07; 08 each of these squeegee systems 04; 06 is each of a robot 09; 11 out or moved, with one - in the 2 indicated - trajectory 21 of the doctor blade 07 in question; 08 of each squeegee system 04; 06 is freely programmed in each case, which means that a respective at least two-dimensional movement path 21 of the doctor blade 07; 08 of each squeegee system 04; 06 each by a controller of the relevant robot 09; 11 is fixed.
  • the respective path of movement 21 of the doctor blade 07; 08 of the squeegee system in question 04; 06 is programmed as a function of a contour of the object 03 to be printed with this screen printing device, ie set to the respective squeegee 07; 08, particularly if the contour of the object 03 to be printed is uneven or discontinuous, the screen printing stencil 01 is positioned selectively, i.e. only at selected positions of a print image to be applied, and the robots 09; 11 to be painted over the screen printing template 01.
  • the Robots 09; 11 are each designed as a parallel-arm robot with rod kinematics or as a so-called delta robot 09; 11 or as a robot with delta kinematics.
  • Delta Robot 09; 11 have several, preferably at least three arms 12; 13, which by means of joints, in particular universal joints, with a common base 14; 16 are connected, the shape of these arms 12; 13 remind of the Greek letter delta.
  • the axes of a spider-like delta robot 09; 11 form a closed kinematic chain in their interaction.
  • the base 14; 16 of the respective delta robot 09; 11 is above the moving parts of the relevant delta robot 09; 11 arranged in particular stationary, ie z. B. on a mounting frame 17 of a linear printing machine or a rotary table printing machine.
  • From base 14; 16 extend the plurality, preferably at least three arms 12; 13, in particular articulated arms 12; 13 each down, i. H. down.
  • the lower ends of these arms 12; 13 are in turn compared to the respective base 14; 16 smaller in area, z. B. triangular or square platform 18; 19, the so-called gripper platform.
  • the respective squeegee 07; 08 of each of the squeegee systems 04; 06 is connected to the respective arms 12; 13 moving platform 18; 19 and is therefore connected by the respective movement of the relevant platform 18; 19 out in their respective movement behavior.
  • the drive technology is the following: If at least one motor 22, in particular electric, controlled by the control unit; 23, which is in the base 14; 16 is located, the respective axis of at least one of the articulated arms 12; 13 drives, the platform 18 arranged below moves; 19 along X and/or Y and/or Z traverse paths, ie along one-dimensional or two-dimensional or three-dimensional traverse paths - visually on the sides of a parallelogram.
  • delta robots 09; 11 also perform rotational movements.
  • the articulated arms 12; 13 of robots 09; 11 of this type can be driven, ie moved, by a linear drive and/or by a rotary drive.
  • the squeegee drive of the screen printing device is controlled by means of a delta robot 09; 11 to train.
  • This screen printing device is used in particular for printing objects 03 designed as a round body 03 or as a hollow body 03.
  • a linear printing machine or a rotary table printing machine is provided with at least one screen printing device having the features described above.
  • a squeegee drive by means of controlled robots 09; 11 is very precise and allows individual adjustment of a squeegee pressure and/or a squeegee position and/or a squeegee speed.
  • an object 03 to be printed is first measured, at least in terms of its contour, after which the respective movement path 21 of the respective squeegee 07; 08 of each squeegee system 04; 06 is programmed and executed respectively. It can be provided that the relevant doctor blades 07; 08 different squeegee systems 04, but involved in the same printing process; 06 alternately or with a time delay be used.
  • a robot 09 designed as a parallel-arm robot with rod kinematics or as a delta robot; 11 has the advantage over known, in particular industrially used, articulated-arm robots that it enables the circulation speeds required for printing mass-produced articles in the first place, with these circulation speeds usually being in the range of up to three cycles per second.
  • Articulated arm systems based on the design of an industrial robot are not designed for this and are therefore not suitable for the use intended according to the invention.
  • the comprehensive spatial flexibility of handling offered by articulated arm systems is not an advantage for the present application in a screen printing device, in particular in a screen printing device arranged in a linear printing machine or rotary table printing machine, but on the contrary leads to considerable limitations in the dynamics due to the masses to be moved in articulated arm systems .
  • the free programmability of a robot according to the invention solves a problem in comparison to squeegee systems known from the prior art described in the introduction, which lies in the high material stress on the screen fabric in the printing process.
  • Conventional systems such as B. in the DE 20 20 424 A described chain system, are characterized in that the same point loading of the screen fabric always occurs at the place where the squeegee is inserted.
  • the screen typically breaks and thus the production carried out with the screen printing device is interrupted.
  • One of a robot A guided squeegee system makes it possible to vary the squeegee insertion point geometrically within a zone defined with regard to the screen printing stencil, with the otherwise identical function of the squeegee system (e.g. with regard to register maintenance), and thus achieve more even fabric loading and a longer screen service life.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Screen Printers (AREA)

Description

Die Erfindung betrifft eine Siebdruckvorrichtung mit einer Siebdruckschablone gemäß dem Oberbegriff des Anspruches 1 sowie ein Verfahren zur Verwendung derselben.The invention relates to a screen printing device with a screen printing stencil according to the preamble of claim 1 and a method for using the same.

Durch die DE 20 20 424 A ist eine Siebdruckvorrichtung mit mindestens zwei am Druckprozess alternierend beteiligten Rakelsystemen bekannt, wobei die Rakelsysteme durch Ketten umlaufend geführt sind, wobei die jeweiligen Rakel wechselweise einsetzen und nach Abschluss des Druckvorgangs an ihren Ausgangspunkt zurückgeführt werden. Die Rakel laufen z. B. gegeneinander um einen konstanten Phasenwinkel von z. B. 180° versetzt ab. Die Rakelblätter können von zwei endlosen Ketten geführt werden, die nebeneinanderliegend und zueinander parallel angeordnet sind.through the DE 20 20 424 A discloses a screen printing device with at least two squeegee systems involved alternately in the printing process, the squeegee systems being guided in a circumferential manner by chains, with the respective squeegees being used alternately and being returned to their starting point after the printing process is complete. The squeegee run z. B. against each other by a constant phase angle of z. B. offset from 180 °. The squeegee blades can be guided by two endless chains arranged side by side and parallel to each other.

Der US 5,985,376 A ist eine Siebdruckvorrichtung mit einer Siebdruckschablone entnehmbar, wobei mindestens zwei jeweils auf diese Siebdruckschablone wirkende Rakelsysteme vorgesehen sind, wobei die mindestens zwei Rakelsysteme in einem selben Druckprozess jeweils Druckfarbe auf einen zu bedruckenden Gegenstand auftragend angeordnet sind, wobei jedes dieser Rakelsysteme jeweils mindestens eine Rakel aufweist, wobei eine jede dieser Rakel über die Siebdruckschablone streichend angeordnet ist, wobei jedes dieser Rakelsysteme jeweils individuell von einer Steuereinheit gesteuert ist.Of the US 5,985,376A a screen printing device with a screen printing stencil can be removed, with at least two squeegee systems each acting on this screen printing stencil being provided, with the at least two squeegee systems being arranged in the same printing process to apply printing ink to an object to be printed, each of these squeegee systems having at least one squeegee, each of these squeegees being arranged to sweep over the screen printing stencil, each of these squeegee systems being individually controlled by a control unit.

Durch die DE 10 2015 212 515 A1 ist eine Siebdruckvorrichtung mit einem Drucksieb, einer Druckrakel und einer Auflage für ein zu bedruckendes Druckgut bekannt, wobei zum Bewegen der Druckrakel und/oder der Auflage relativ zum Drucksieb wenigstens ein Gelenkarmroboter vorgesehen ist.through the DE 10 2015 212 515 A1 a screen printing device with a printing screen, a printing squeegee and a support for a print material to be printed is known, wherein at least one articulated-arm robot is provided for moving the printing squeegee and/or the support relative to the printing screen.

Aus der DE 10 2005 006 732 A1 ist eine Siebdruckvorrichtung zum Bedrucken von gekrümmten Oberflächen bekannt, mit einer Druckrakel, einem in einem Siebrahmen gehaltenen Drucksieb und Mitteln zum Bewegen der Druckrakel, wobei der Siebrahmen an wenigstens einer Seite wenigstens abschnittsweise flexibel ausgebildet ist. Die DE 10 2005 006 732 A1 enthält den Hinweis auf eine an einem Rakelhalter befestigte Druckrakel, wobei der Rakelhalter von Führungsarmen geführt ist, wobei diese Führungsarme Arme eines nicht-weiterspezifizierten Freiformroboters sein können. Die DE 44 31 596 C1 betrifft eine Vorrichtung zum Bedrucken der Oberfläche von Gegenständen, mit einer Druckeinrichtung und zwei voneinander unabhängigen, einander in Bezug auf eine Mittelebene gegenüberliegenden und parallel zueinander bewegbaren Kreuzschlitten, die jeweils Halterungen zur Aufnahme und Handhabung der Gegenstände während des Druckvorganges aufweisen, die in die zwischen den Bewegungsebenen der beiden Kreuzschlitten liegende Mittelebene vorspringen und in dieser Ebene ein und dasselbe Bewegungsfeld bestreichen und mit Hilfe der Kreuzschlitten derart beweglich sind, dass sie die zu bedruckenden Gegenstände unmittelbar von einem Zufuhrförderer aufgreifen, der Druckeinrichtung zuführen und nach dem Druck auf einen Austragförderer absetzen. Diese Vorrichtung kann als eine Siebdruckmaschine ausgebildet sein.From the DE 10 2005 006 732 A1 a screen printing device for printing curved surfaces is known, with a printing squeegee, a printing screen held in a screen frame and means for moving the printing squeegee, the screen frame being flexible at least in sections on at least one side. the DE 10 2005 006 732 A1 contains the reference to a printing squeegee attached to a squeegee holder, the squeegee holder being guided by guide arms, it being possible for these guide arms to be the arms of a free-form robot which is not further specified. the DE 44 31 596 C1 relates to a device for printing the surface of objects, with a printing device and two mutually independent compound slides which are opposite one another in relation to a central plane and can be moved parallel to one another, each of which has holders for receiving and handling the objects during the printing process, which project into the central plane lying between the planes of movement of the two compound slides and cover one and the same field of motion in this plane and can be moved with the aid of the cross slides in such a way that they pick up the objects to be printed directly from a feed conveyor, feed them to the printing device and, after printing, set them down on a discharge conveyor. This device can be designed as a screen printing machine.

Die DE 11 2012 005 138 T5 betrifft eine Maskenhalterung zum Halten einer Maske, die mit einem Substrat in einer Siebdruckmaschine in Kontakt gebracht wird, wobei die Maskenhalterung umfasst: einen rechten und einen linken Seitenstützteil, der sowohl die rechte als auch die linke Seite der horizontal von der Vorderseite eingesetzten Maske stützt; ein Betätigungselement, das zu einer Bewegungsoperation in einer Vorwärts-Rückwärts-Richtung bezüglich des rechten und des linken Seitenstützteils imstande ist; ein Stabelement, das so vorgesehen ist, dass es sich längs eines seitlichen Abschnitts des rechten und des linken Seitenstützteils in der Vorwärts-Rückwärts-Richtung erstreckt, so dass ein vorderes Ende des Stabelements mit dem Betätigungselement verbunden ist; einen Hinterkantenstopper, der mit einem hinteren Ende des Stabelements verbunden ist und durch das Stabelement durch die Bewegungsoperation in der Vorwärts-Rückwärts-Richtung bezüglich des rechten und des linken Seitenstützteils durch das Betätigungselement in der Vorwärts-Rückwärts-Richtung bewegt wird und durch die Befestigungsoperation des Stabelements an dem rechten und dem linken Seitenstützteil durch das Betätigungselement an dem rechten und dem linken Seitenstützteil befestigt wird und der an einer Hinterkante der Maske zum Anstoßen gebracht wird, deren rechte und deren linke Seite durch den rechten bzw. den linken Seitenstützteil gestützt sind; und einen Vorderkantenstopper, der an eine Vorderkante der Maske anstößt, deren rechte und deren linke Seite durch den rechten bzw. den linken Seitenstützteil gestützt sind.the DE 11 2012 005 138 T5 relates to a mask holder for holding a mask to be brought into contact with a substrate in a screen printing machine, the mask holder comprising: right and left side support parts that support both the right and left sides of the mask set horizontally from the front; an actuator capable of a moving operation in a front-back direction with respect to the right and left side support members; a rod member provided so as to extend along a lateral portion of the right and left side support members in the front-rear direction such that a front end of the rod member is connected to the operating member; a trailing edge stopper which is connected to a rear end of the rod member and is moved in the front-rear direction by the rod member by the moving operation in the front-back direction with respect to the right and left side support members by the operating member and by the fixing operation of the rod member is fixed to the right and left side support parts by the operating member on the right and left side support parts and which is abutted against a rear edge of the mask whose right and left sides are supported by the right and left side support parts, respectively; and a front edge stopper abutting on a front edge of the mask whose right and left sides are supported by the right and left side support parts, respectively.

Die WO 2008/083257 A2 betrifft eine Vorrichtung zum Drucken von Designs oder Bildern auf einer kleinen oder begrenzten Fläche eines Substrats. Die Vorrichtung umfasst eine Siebdruckanordnung, einen Druckkopf und eine Führungsanordnung. Eine Rakel und eine Flutstange des Druckkopfes sind an einer vorbestimmten Position positioniert.the WO 2008/083257 A2 relates to an apparatus for printing designs or images on a small or limited area of a substrate. The apparatus includes a screen printing assembly, a print head, and a guide assembly. A squeegee and a flood bar of the printhead are positioned at a predetermined position.

Der Erfindung liegt die Aufgabe zugrunde, eine Siebdruckvorrichtung mit einer Siebdruckschablone zu schaffen, wobei ein Einsatz von mindestens zwei jeweils auf diese Siebdruckschablone wirkenden Rakelsystemen flexibel an den zu bedruckenden Gegenstand angepasst oder zumindest anpassbar ist.The invention is based on the object of creating a screen printing device with a screen printing stencil, wherein the use of at least two squeegee systems each acting on this screen printing stencil is flexibly adapted or at least adaptable to the object to be printed.

Die Aufgabe wird erfindungsgemäß durch eine Vorrichtung bzw. ein Verfahren gemäß Anspruch 1 bzw. 8 gelöst. Die abhängigen Ansprüche betreffen vorteilhafte Ausgestaltungen und/oder Weiterbildungen der gefundenen Lösung.The object is achieved according to the invention by a device and a method according to claims 1 and 8, respectively. The dependent claims relate to advantageous refinements and/or developments of the solution found.

Die mit der Erfindung erzielbaren Vorteile bestehen insbesondere darin, dass die Rakel in ihrer jeweiligen Bewegung artikel-individuell geführt werden können. Auch andere spezifische Bewegungen, die z. B. im unmittelbaren Anschluss nach dem eigentlichen Druckprozess erfolgen, sind durch entsprechende Programmierung der Roboter möglich. Somit ergeben sich für die am Druckprozess beteiligten Rakel voneinander unabhängige individuelle Bewegungsabläufe jeweils ohne eine durch ein Führungssystem starr vorgegebene Bewegungsbahn und auch ohne eine z. B. mechanische Zwangskopplung bei einer gleichzeitigen Verwendung von mehreren Rakeln. Gerade für das Bedrucken von Massenartikeln ist es auch vorteilhaft, dass die Zeit zwischen zwei Druckvorgängen verringert werden kann, weil z. B. Wartezeiten verkürzt werden oder entfallen.The advantages that can be achieved with the invention consist in particular in the fact that the respective movement of the squeegees can be guided individually for each article. Also other specific movements, e.g. B. immediately after the actual printing process, are possible through appropriate programming of the robot. This results in independent, individual movement sequences for the squeegees involved in the printing process, each without a trajectory rigidly predetermined by a guide system and also without a z. B. mechanical forced coupling with a simultaneous use of several doctor blades. Especially for the printing of mass-produced items, it is also advantageous that the time between two printing processes can be reduced, because e.g. B. Waiting times can be shortened or eliminated.

Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen dargestellt und wird im Folgenden näher beschrieben.An embodiment of the invention is shown in the drawings and is described in more detail below.

Es zeigen:

Fig. 1
eine erste Variante einer Siebdruckvorrichtung;
Fig. 2
eine zweite Variante der Siebdruckvorrichtung.
Show it:
1
a first variant of a screen printing device;
2
a second variant of the screen printing device.

Die Fig. 1 und 2 zeigen beispielhaft zwei Varianten der vorgeschlagenen Siebdruckvorrichtung. Bei beiden Varianten ist eine Siebdruckschablone 01, insbesondere Flachdrucksiebschablone, in einem z. B. stationär angeordneten vorzugsweise rechteckig ausgebildeten insbesondere starren Rahmen 02 eingefasst und z. B. in einer Lineardruckmaschine oder in einer Rundtischdruckmaschine angeordnet. Eine eine Siebdruckvorrichtung aufweisende Lineardruckmaschine ist z. B. aus der DE 10 2017 214 073 A1 bekannt. Eine eine Siebdruckvorrichtung aufweisende Rundtischdruckmaschine ist z. B. aus der EP 2 995 453 A1 bekannt. Beide Druckmaschinentypen werden zum Bedrucken von Gegenständen 03 verwendet, die z. B. jeweils als ein Rundkörper 03 oder als ein Hohlkörper 03 ausgebildet sind, insbesondere als ein rotationssymmetrischer Hohlkörper 03. Üblicherweise ist der zu bedruckende Gegenstand 03 jeweils in einem Transportsystem gelagert und wird mittels des Transportsystem durch die Druckmaschine geführt, wobei der zu bedruckende Gegenstand 03 im Druckprozess von dem betreffenden Transportsystem zumindest kurzzeitig an der Siebdruckschablone 01 angeordnet ist, d. h. dort positioniert wird, und zwar vorzugsweise unterhalb der Siebdruckschablone 01. Dabei wird im Druckprozess mittels der Siebdruckvorrichtung z. B. die Mantelfläche des betreffenden im Druckprozess z. B. um seine Längsachse 24 rotierenden Gegenstandes 03 dadurch bedruckt, dass der zu bedruckende Gegenstand 03 im Kontakt mit der Siebdruckschablone 01 abgerollt wird. Vorzugsweise wird von der Siebdruckvorrichtung eine größere Anzahl von Gegenständen 03 sequentiell bedruckt, z. B. werden in einer Lineardruckmaschine oder in einer Rundtischdruckmaschine von der betreffenden Siebdruckvorrichtung zwischen 300 und 600 dieser Gegenstände 03 pro Minute bedruckt. Die Siebdruckvorrichtung arbeitet also in einem industriellen Druckprozess zum Bedrucken von Massenartikeln, insbesondere von Rundkörpern 03 oder Hohlkörpern 03, z. B. der jeweiligen Mantelfläche von Flaschen aus Glas oder einem Kunststoff, vorzugsweise Flaschen für Getränke oder Kosmetika. Zum Auftragen von Druckfarbe auf den zu bedruckenden Gegenstand 03 in einem selben Druckprozess sind mehrere, z. B. zwei jeweils einzeln, d. h. individuell von einer vorzugsweise digitalen Steuereinheit gesteuerte Rakelsysteme 04; 06 vorgesehen, wobei jedes dieser Rakelsysteme 04; 06 jeweils mindestens eine Rakel 07; 08 aufweist, wobei eine jede dieser Rakel 07; 08 über die Siebdruckschablone 01 streichend angeordnet ist. Jede dieser Rakel 07; 08 führt also mit Bezug auf die vorzugsweise ortsfest angeordnete Siebdruckschablone 01 eine Relativbewegung aus. Die jeweils mindestens eine Rakel 07; 08 von jedem der Rakelsysteme 04; 06 ist jeweils in einer Ebene E1; E2 geführt, wobei diese Ebenen E1; E2 voneinander beabstandet und parallel zueinander angeordnet sind. Die jeweils mindestens eine Rakel 07; 08 von jedem der Rakelsysteme 04; 06 ist jeweils insbesondere in einer vertikalen Ebene E1; E2 geführt. Mit Bezug auf die Längsachse 24 der zu bedruckenden Gegenstände 03 sind die zueinander parallelen Ebenen E1; E2 entlang dieser Längsachse 24 insbesondere nacheinander bzw. hintereinander angeordnet, so dass verschiedene Rakelsysteme 04; 06 z. B. auch jeweils unterschiedliche Bereiche vom zu bedruckenden Gegenstand 03 bedrucken können.the 1 and 2 show an example of two variants of the proposed screen printing device. In both variants, a screen printing stencil 01, in particular a flat printing screen stencil, is in a z. B. stationarily arranged preferably rectangular in particular rigid frame 02 and z. B. arranged in a linear printing machine or in a rotary table printing machine. A linear printing machine having a screen printing device is e.g. B. from the DE 10 2017 214 073 A1 known. A rotary table printing machine having a screen printing device is e.g. B. from the EP 2 995 453 A1 known. Both types of printing machine are used to print objects 03, which z. B. are designed as a round body 03 or as a hollow body 03, in particular as a rotationally symmetrical hollow body 03. The object 03 to be printed is usually stored in a transport system and is guided through the printing machine by means of the transport system, with the object to be printed 03 is arranged at least briefly on the screen printing stencil 01 by the relevant transport system during the printing process, ie is positioned there, preferably below the screen printing stencil 01. B. the lateral surface of the relevant in the printing process z. B. is printed on an object 03 rotating about its longitudinal axis 24 in that the object 03 to be printed is unrolled in contact with the screen printing stencil 01. A larger number of objects 03 are preferably printed sequentially by the screen printing device, e.g. For example, between 300 and 600 of these objects 03 are printed per minute by the relevant screen printing device in a linear printing machine or in a rotary table printing machine. So the screen printing device is working in an industrial printing process for printing mass-produced articles, in particular round bodies 03 or hollow bodies 03, e.g. B. the respective lateral surface of bottles made of glass or plastic, preferably bottles for beverages or cosmetics. In order to apply printing ink to the object to be printed 03 in the same printing process, several, e.g. B. two each individually, ie individually controlled by a preferably digital control unit 04; 06 provided, each of these doctor blade systems 04; 06 in each case at least one squeegee 07; 08, each of these squeegees 07; 08 is arranged sweeping over the screen printing stencil 01. Each of these doctor blades 07; 08 thus performs a relative movement with respect to the screen printing stencil 01, which is preferably arranged in a stationary manner. The at least one squeegee 07; 08 of each of the squeegee systems 04; 06 is in a plane E1; E2 out, these levels E1; E2 spaced apart and arranged parallel to each other. The at least one squeegee 07; 08 of each of the squeegee systems 04; 06 is in particular in a vertical plane E1; E2 led. With respect to the longitudinal axis 24 of the objects to be printed 03, the mutually parallel planes E1; E2 along this longitudinal axis 24, in particular arranged one after the other or one behind the other, so that different squeegee systems 04; 06 e.g. B. can also print different areas of the object to be printed 03.

Die jeweilige Rakel 07; 08 jedes dieser Rakelsysteme 04; 06 ist jeweils von einem Roboter 09; 11 geführt bzw. bewegt, wobei eine - in der Fig. 2 angedeutete - Bewegungsbahn 21 der betreffenden Rakel 07; 08 eines jeden Rakelsystems 04; 06 jeweils frei programmiert ist, was bedeutet, dass eine jeweilige mindestens zweidimensionale Bewegungsbahn 21 der betreffenden Rakel 07; 08 eines jeden Rakelsystems 04; 06 jeweils durch eine Steuerung des betreffenden Roboters 09; 11 festgelegt ist. Vorzugsweise ist die jeweilige Bewegungsbahn 21 der Rakel 07; 08 des betreffenden Rakelsystems 04; 06 in Abhängigkeit von einer Kontur des mit dieser Siebdruckvorrichtung zu bedruckenden Gegenstandes 03 programmiert, d. h. festgelegt, um die jeweilige Rakel 07; 08 insbesondere bei einem ungeraden oder unstetigen Konturverlauf des zu bedruckenden Gegenstandes 03 selektiv, d. h. nur an ausgewählten Positionen eines aufzutragenden Druckbildes, an die Siebdruckschablone 01 anzustellen und entsprechend der getroffenen programmtechnischen Festlegung durch eine entsprechende von der Steuereinheit ausgeführte Ansteuerung der Roboter 09; 11 über die Siebdruckschablone 01 streichen zu lassen.The respective squeegee 07; 08 each of these squeegee systems 04; 06 is each of a robot 09; 11 out or moved, with one - in the 2 indicated - trajectory 21 of the doctor blade 07 in question; 08 of each squeegee system 04; 06 is freely programmed in each case, which means that a respective at least two-dimensional movement path 21 of the doctor blade 07; 08 of each squeegee system 04; 06 each by a controller of the relevant robot 09; 11 is fixed. The respective path of movement 21 of the doctor blade 07; 08 of the squeegee system in question 04; 06 is programmed as a function of a contour of the object 03 to be printed with this screen printing device, ie set to the respective squeegee 07; 08, particularly if the contour of the object 03 to be printed is uneven or discontinuous, the screen printing stencil 01 is positioned selectively, i.e. only at selected positions of a print image to be applied, and the robots 09; 11 to be painted over the screen printing template 01.

Die Roboter 09; 11 sind jeweils als ein Parallelarmroboter mit Stabkinematik oder als ein sogenannter Delta-Roboter 09; 11 bzw. als ein Roboter mit Deltakinematik ausgebildet. Delta-Roboter 09; 11 weisen mehrere, vorzugsweise mindestens drei Arme 12; 13 auf, die mittels Gelenken, insbesondere Universalgelenken mit einer gemeinsamen Basis 14; 16 verbunden sind, wobei die Form dieser Arme 12; 13 an den griechischen Buchstaben Delta erinnern. Die Achsen eines spinnenartigen Delta-Roboters 09; 11 bilden in ihrem Zusammenspiel eine geschlossene kinematische Kette. Die Basis 14; 16 des jeweiligen Delta-Roboters 09; 11 ist jeweils oberhalb der sich bewegenden Teile des betreffenden Delta-Roboters 09; 11 insbesondere ortsfest angeordnet, also z. B. an einem Montagerahmen 17 einer Lineardruckmaschine oder einer Rundtischdruckmaschine. Von der Basis 14; 16 erstrecken sich die mehreren, vorzugsweise mindestens drei Arme 12; 13, insbesondere Gelenkarme 12; 13 jeweils nach unten, d. h. abwärts. Die unteren Enden dieser Arme 12; 13 sind ihrerseits mit einer im Vergleich zur jeweiligen Basis 14; 16 flächenmäßig kleineren, z. B. dreieckigen oder viereckigen Plattform 18; 19, der sogenannten Greiferplattform verbunden. Die jeweilige Rakel 07; 08 von jedem der jeweils auf die Siebdruckschablone 01 wirkenden Rakelsysteme 04; 06 ist mit der jeweiligen jeweils von den betreffenden Armen 12; 13 bewegten Plattform 18; 19 verbunden und wird daher durch die jeweilige Bewegung der betreffenden Plattform 18; 19 in ihrem jeweiligen Bewegungsverhalten geführt.The Robots 09; 11 are each designed as a parallel-arm robot with rod kinematics or as a so-called delta robot 09; 11 or as a robot with delta kinematics. Delta Robot 09; 11 have several, preferably at least three arms 12; 13, which by means of joints, in particular universal joints, with a common base 14; 16 are connected, the shape of these arms 12; 13 remind of the Greek letter delta. The axes of a spider-like delta robot 09; 11 form a closed kinematic chain in their interaction. The base 14; 16 of the respective delta robot 09; 11 is above the moving parts of the relevant delta robot 09; 11 arranged in particular stationary, ie z. B. on a mounting frame 17 of a linear printing machine or a rotary table printing machine. From base 14; 16 extend the plurality, preferably at least three arms 12; 13, in particular articulated arms 12; 13 each down, i. H. down. The lower ends of these arms 12; 13 are in turn compared to the respective base 14; 16 smaller in area, z. B. triangular or square platform 18; 19, the so-called gripper platform. The respective squeegee 07; 08 of each of the squeegee systems 04; 06 is connected to the respective arms 12; 13 moving platform 18; 19 and is therefore connected by the respective movement of the relevant platform 18; 19 out in their respective movement behavior.

Bei der vorgenannten Art von Roboter 09; 11 ist die Antriebstechnik folgende:
Wenn mindestens ein insbesondere elektrischer von der Steuereinheit gesteuerter Motor 22; 23, welcher sich in der Basis 14; 16 befindet, die jeweilige Achse von mindestens einem der Gelenkarme 12; 13 antreibt, bewegt sich die unten angeordnete Plattform 18; 19 entlang von X- und/oder Y- und/oder Z-Verfahrwegen, d. h. entlang von eindimensionalen oder zweidimensionalen oder dreidimensionalen Verfahrwegen - visuell auf den Seiten eines Parallelogramms. Je nach der Anzahl der Freiheitsgrade können Delta-Roboter 09; 11 auch Rotationsbewegungen ausführen. Die Gelenkarme 12; 13 von Robotern 09; 11 dieser Bauart können von einem linearen Antrieb und/oder von einem Drehantrieb angetrieben, d. h. bewegt werden. Da der jeweilige Antrieb oder Motor 22; 23 für die Gelenkarme 12; 13 jeweils in der betreffenden Basis 14; 16 angeordnet ist, weisen die Gelenkarme 12; 13 der vorgeschlagenen Roboter 09; 11 selbst keinen von der Steuereinheit gesteuerten Antrieb oder Motor 22; 23 auf. Die Gelenkarme 12; 13 weisen daher nur eine vergleichsweise geringe Masse und/oder Trägheit auf.
In the aforementioned type of robot 09; 11, the drive technology is the following:
If at least one motor 22, in particular electric, controlled by the control unit; 23, which is in the base 14; 16 is located, the respective axis of at least one of the articulated arms 12; 13 drives, the platform 18 arranged below moves; 19 along X and/or Y and/or Z traverse paths, ie along one-dimensional or two-dimensional or three-dimensional traverse paths - visually on the sides of a parallelogram. Depending on the number of degrees of freedom, delta robots 09; 11 also perform rotational movements. The articulated arms 12; 13 of robots 09; 11 of this type can be driven, ie moved, by a linear drive and/or by a rotary drive. Since the respective drive or motor 22; 23 for the articulated arms 12; 13 each in the respective base 14; 16 is arranged, the articulated arms 12; 13 of the proposed robots 09; 11 itself no drive or motor 22 controlled by the control unit; 23 on. The articulated arms 12; 13 therefore only have a comparatively low mass and/or inertia.

Es wird erfindungsgemäß vorgesehen, den Rakelantrieb der Siebdruckvorrichtung mittels Delta-Roboter 09; 11 auszubilden. Diese Siebdruckvorrichtung wird insbesondere zum Bedrucken von jeweils als ein Rundkörper 03 oder als ein Hohlkörper 03 ausgebildeten Gegenständen 03 verwendet. In einer sehr vorteilhaften Ausführungsform ist vorgesehen, eine Lineardruckmaschine oder eine Rundtischdruckmaschine jeweils mit mindestens einer Siebdruckvorrichtung mit den zuvor beschriebenen Merkmalen auszubilden.According to the invention, the squeegee drive of the screen printing device is controlled by means of a delta robot 09; 11 to train. This screen printing device is used in particular for printing objects 03 designed as a round body 03 or as a hollow body 03. In a very advantageous embodiment, a linear printing machine or a rotary table printing machine is provided with at least one screen printing device having the features described above.

Ein Rakelantrieb mittels gesteuerter Roboter 09; 11 ist sehr präzise und gestattet eine individuelle Einstellung von einem Rakeldruck und/oder einer Rakelposition und/oder einer Rakelgeschwindigkeit. In vorteilhafter Weise wird ein zu bedruckender Gegenstand 03 zuerst zumindest in seiner Kontur vermessen, wonach dann in Abhängigkeit vom Messergebnis die jeweilige Bewegungsbahn 21 der betreffenden Rakel 07; 08 eines jeden Rakelsystems 04; 06 jeweils programmiert und ausgeführt wird. Dabei kann vorgesehen sein, dass die betreffenden Rakel 07; 08 unterschiedlicher, aber am selben Druckprozess beteiligter Rakelsysteme 04; 06 jeweils wechselweise oder zeitversetzt zum Einsatz gebracht werden.A squeegee drive by means of controlled robots 09; 11 is very precise and allows individual adjustment of a squeegee pressure and/or a squeegee position and/or a squeegee speed. Advantageously, an object 03 to be printed is first measured, at least in terms of its contour, after which the respective movement path 21 of the respective squeegee 07; 08 of each squeegee system 04; 06 is programmed and executed respectively. It can be provided that the relevant doctor blades 07; 08 different squeegee systems 04, but involved in the same printing process; 06 alternately or with a time delay be used.

Ein als Parallelarmroboter mit Stabkinematik oder als Delta-Roboter ausgebildeter Roboter 09; 11 hat gegenüber bekannten insbesondere industriell genutzten Gelenkarmrobotern den Vorzug, die zum Bedrucken von Massenartikeln geforderten Umlaufgeschwindigkeiten überhaupt erst zu ermöglichen, wobei diese Umlaufgeschwindigkeiten üblicherweise im Bereich von bis zu drei Zyklen pro Sekunde liegen. Hierfür sind Gelenkarmsysteme nach Bauart eines Industrieroboters nicht ausgelegt und deshalb für die erfindungsgemäß beabsichtigte Verwendung nicht geeignet. Die von Gelenkarmsystemen gebotene umfassende räumliche Flexibilität der Handhabung ist für den hier vorliegenden Einsatzzweck in einer Siebdruckvorrichtung, insbesondere in einer in einer Lineardruckmaschine oder Rundtischdruckmaschine angeordneten Siebdruckvorrichtung kein Vorzug, sondern führt ganz im Gegenteil aufgrund der bei Gelenkarmsystemen zu bewegenden Massen zu erheblichen Einschränkungen in der Dynamik. Ganz anders ist der Sachverhalt bei einem Parallelarmroboter mit Stabkinematik oder bei einem Delta-Roboter. Dadurch, dass bei einem Parallelarmroboter mit Stabkinematik oder bei einem Delta-Roboter die jeweiligen Antriebe außerhalb der Armkinematik angeordnet sind, haben diese Parallelkinematiken nur geringe bewegte Massen und können deshalb die erforderliche sehr hohe Geschwindigkeit und Dynamik erreichen.A robot 09 designed as a parallel-arm robot with rod kinematics or as a delta robot; 11 has the advantage over known, in particular industrially used, articulated-arm robots that it enables the circulation speeds required for printing mass-produced articles in the first place, with these circulation speeds usually being in the range of up to three cycles per second. Articulated arm systems based on the design of an industrial robot are not designed for this and are therefore not suitable for the use intended according to the invention. The comprehensive spatial flexibility of handling offered by articulated arm systems is not an advantage for the present application in a screen printing device, in particular in a screen printing device arranged in a linear printing machine or rotary table printing machine, but on the contrary leads to considerable limitations in the dynamics due to the masses to be moved in articulated arm systems . The situation is completely different with a parallel-arm robot with rod kinematics or with a delta robot. Because the respective drives are arranged outside of the arm kinematics in a parallel arm robot with rod kinematics or in a delta robot, these parallel kinematics only have low moving masses and can therefore achieve the very high speed and dynamics required.

Ferner löst die freie Programmierbarkeit eines erfindungsgemäßen Roboters gegenüber aus dem einleitend beschriebenen Stand der Technik bekannten Rakelsystemen ein Problem, welches in der hohen Materialbelastung des Siebgewebes im Druckprozess liegt. Konventionelle Systeme, wie das z. B. in der DE 20 20 424 A beschriebene Kettensystem, sind dadurch gekennzeichnet, dass am Ort des Rakeleinsetzens eine immer gleiche Punktbelastung des Siebgewebes auftritt. Hier kommt es nach entsprechender Laufzeit typischerweise zum Siebriss und damit zu einer Unterbrechung der mit der Siebdruckvorrichtung ausgeführten Produktion. Ein von einem Roboter geführtes Rakelsystem ermöglicht es hingegen, den Rakeleinsetzpunkt bei ansonsten gleicher Funktion des Rakelsystems (z. B. hinsichtlich Registerhaltung) innerhalb einer bezüglich der Siebdruckschablone definierten Zone geometrisch zu variieren und damit eine gleichmäßigere Gewebebelastung und höhere Siebstandzeit zu erreichen.Furthermore, the free programmability of a robot according to the invention solves a problem in comparison to squeegee systems known from the prior art described in the introduction, which lies in the high material stress on the screen fabric in the printing process. Conventional systems such as B. in the DE 20 20 424 A described chain system, are characterized in that the same point loading of the screen fabric always occurs at the place where the squeegee is inserted. Here, after a corresponding period of time, the screen typically breaks and thus the production carried out with the screen printing device is interrupted. One of a robot A guided squeegee system, on the other hand, makes it possible to vary the squeegee insertion point geometrically within a zone defined with regard to the screen printing stencil, with the otherwise identical function of the squeegee system (e.g. with regard to register maintenance), and thus achieve more even fabric loading and a longer screen service life.

BezugszeichenlisteReference List

0101
Siebdruckschablonescreen printing stencil
0202
Rahmenframe
0303
Gegenstand; HohlkörperObject; hollow body
0404
Rakelsystemsqueegee system
0606
Rakelsystemsqueegee system
0707
Rakelsqueegee
0808
Rakelsqueegee
0909
Roboter; Delta-RoboterRobot; Delta robot
1111
Roboter; Delta-RoboterRobot; Delta robot
1212
Arm; GelenkarmPoor; articulated arm
1313
Arm; GelenkarmPoor; articulated arm
1414
BasisBase
1616
BasisBase
1717
Montagerahmenmounting frame
1818
Plattformplatform
1919
Plattformplatform
2121
Bewegungsbahntrajectory
2222
Motorengine
2323
Motorengine
2424
Längsachselongitudinal axis
E1E1
Ebenelevel
E2E2
Ebenelevel

Claims (15)

  1. A screen-printing device having a screen-printing stencil (01), wherein at least two doctor blade systems (04; 06) respectively acting on this screen-printing stencil (01) are provided, wherein in a same printing process the at least two doctor blade systems (04; 06) are arranged respectively applying printing ink to an object (03) to be printed, wherein each of these doctor blade systems (04; 06) respectively has at least one doctor blade (07; 08), wherein one is arranged to sweep over each of these doctor blade systems (04; 06) via the screen-printing stencil (01), wherein each of these doctor blade systems (04; 06) is individually controlled by a control unit, characterized in that the at least one doctor blade (07; 08) of each of these doctor blade systems (04; 06) is respectively moved by a robot (09; 11), wherein a respective at least two-dimensional motion path (21) of the respective doctor blade (07; 08) of each doctor blade system (04; 06) is respectively freely programmed and established by the controller of the relevant robot (09; 11), wherein the robots (09; 11) are each parallel arm robots with rod kinematics.
  2. The screen-printing device according to claim 1, characterized in that the respective motion path (21) of the respective doctor blade (07; 08) of each doctor blade system (04; 06) is established depending on a contour of the object (03) to be printed with this screen-printing device.
  3. The screen-printing device according to claim 1 or 2, characterized in that the screen-printing stencil (01) is configured as a flat screen-printing stencil and/or is enclosed in a stationary frame (02).
  4. The screen-printing device according to claim 1 or 2 or 3, characterized in that the robots (09; 11) each have several arms (12; 13), wherein the arms (12; 13) of the respective robot (09; 11) are respectively connected by means of hinges to a same base (14; 16), wherein the relevant base (14; 16) of the respective robot (09; 11) is respectively arranged above the moving parts of the relevant robot (09; 11) and the arms (12; 13) respectively extend downward from the relevant base (14; 16), wherein the lower ends of these arms (12; 13) for their part are connected to a platform (18; 19) that is smaller compared to the respective base (14; 16), wherein the at least one doctor blade (07; 08) of each of the respective doctor blade systems (04; 06) acting on the screen-printing stencil (01) is respectively connected to the respective platform (18; 19) moved by the relevant arms (12; 13), whereby at least one motor (22; 23) controlled by the control unit is respectively arranged as a drive for the movement to be executed only in the relevant base (14; 16) by at least one of the arms (12; 13) of the respective robot (09; 11).
  5. The screen-printing device according to claim 1 or 2 or 3 or 4, characterized in that the respective at least one doctor blade (07; 08) is respectively guided by each of the doctor blade systems (04; 06) on a plane (E1; E2), wherein these planes (E1; E2) are spaced apart from one another and arranged parallel to one another.
  6. The screen-printing device according to claim 5, characterized in that, with respect to a longitudinal axis (24) of the object (03) to be printed, the planes (E1; E2) parallel to each other are arranged one after the other on the same longitudinal axis.
  7. The screen-printing device according to claim 1 or 2 or 3 or 4 or 5 or 6, characterized in that a doctor blade pressure and/or a doctor blade position and/or a doctor blade speed are individually set in each of the doctor blade systems (04; 06).
  8. A method for using a screen-printing device according to at least one of claims 1 to 7, characterized in that the screen-printing device is used to print at least one respective object (03) respectively configured as a hollow body (03) or round body (03).
  9. The method according to claim 8, characterized in that the at least one object (03) to be printed is first measured at least in its contour, after which then, depending on the measurement result, the respective motion path (21) of the respective doctor blade (07; 08) of each doctor blade system (04; 06) is respectively established in a program and the relevant robot (09; 11) is controlled by the control unit according to the programmatic establishment.
  10. The method according to claim 8 or 9, characterized in that, in the event of an uneven or unsteady contour profile of the object to be printed (03), the respective doctor blade (07; 08) of each doctor blade system (04; 06) is only thrown on at selected positions of a printed image to be applied to the screen-printing stencil (01) and arranged to sweep over this screen-printing stencil (01).
  11. The method according to claim 8 or 9 or 10, characterized in that the respective doctor blades (07; 08) of different doctor blade systems (04; 06) are respectively used alternately or in staggered manner in the printing process.
  12. A linear printing press or rotary table printing machine, in each case having at least one screen-printing device, in each case according to at least one of claims 1 to 7 and in each case having a transport system, wherein the at least one object (03) to be printed is respectively stored in the transport system and is guided by means of the transport system through the printing press, wherein the relevant object (03) to be printed in the printing process is arranged at least for a short period at the screen-printing stencil (01) of the relevant screen-printing device arranged in the printing press by the transport system.
  13. The linear printing press or rotary table printing machine according to claim 12, characterized in that the object (03) to be printed in the printing process is arranged by the transport system below the screen-printing stencil (01) of the relevant screen-printing device arranged in the printing press.
  14. The linear printing press or rotary table printing machine according to claim 12 or 13, characterized in that the respective base (14; 16) of the relevant robot (09; 11) is respectively arranged stationarily on a mounting frame (17) of the linear printing press or rotary table printing machine.
  15. A method for using a linear printing press or rotary table printing machine according to claim 12 or 13 or 14, characterized in that the screen-printing device arranged in the linear printing press or rotary table printing machine is used in an industrial printing process to print mass-produced items and/or that between 300 and 600 objects (03) per minute are printed sequentially in the linear printing press or rotary table printing machine by the relevant screen-printing device.
EP19723409.9A 2018-10-08 2019-05-10 Screen printing device having a screen printing stencil as well as using method Active EP3863856B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018124754.0A DE102018124754B4 (en) 2018-10-08 2018-10-08 Screen printing device with a screen printing stencil and with at least two squeegee systems involved in the printing process
PCT/EP2019/062045 WO2020074136A1 (en) 2018-10-08 2019-05-10 Screen printing device having a screen printing stencil

Publications (2)

Publication Number Publication Date
EP3863856A1 EP3863856A1 (en) 2021-08-18
EP3863856B1 true EP3863856B1 (en) 2022-10-12

Family

ID=66484074

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19723409.9A Active EP3863856B1 (en) 2018-10-08 2019-05-10 Screen printing device having a screen printing stencil as well as using method

Country Status (7)

Country Link
US (1) US11338569B2 (en)
EP (1) EP3863856B1 (en)
CN (1) CN112912250B (en)
DE (1) DE102018124754B4 (en)
MX (1) MX2020013897A (en)
PL (1) PL3863856T3 (en)
WO (1) WO2020074136A1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005006732A1 (en) * 2005-02-02 2006-08-10 Thieme Gmbh & Co. Kg screen printing device

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2020424A1 (en) * 1970-04-27 1971-11-11 Zwinger Kg J Device for printing labels or the like. in screen printing
US5436028A (en) * 1992-07-27 1995-07-25 Motorola, Inc. Method and apparatus for selectively applying solder paste to multiple types of printed circuit boards
DE4431596C1 (en) * 1994-09-05 1995-10-19 Balsfulland Maschfabrik Gmbh Printing system for items
US5985376A (en) 1995-05-01 1999-11-16 Revlon Consumer Products Corporation Apparatus and method for screen printing radiation curable compositions
US5711217A (en) * 1995-09-18 1998-01-27 Ser-Tek Systems, Inc. Vector screen printing method and apparatus
DE69737281T2 (en) * 1996-12-10 2007-12-20 Matsushita Electric Industrial Co., Ltd., Kadoma Apparatus and method for printing solder paste
JP2000263752A (en) 1999-01-11 2000-09-26 Micro Tekku Kk Screen printer and screen process printing method
DE60045379D1 (en) * 1999-07-26 2011-01-27 Panasonic Corp METHOD AND DEVICE FOR PRINTING SOLDER PAST
AT502864A3 (en) * 2004-10-11 2008-08-15 Ehrenleitner Franz PARALLEL KINEMATIC ROBOT
US20080163770A1 (en) 2006-12-28 2008-07-10 Bien Trong Bui Image printing apparatus for small areas
GB2458313B (en) * 2008-03-13 2012-05-23 Dek Int Gmbh Print head assembly, screen printing system and method
JP5093086B2 (en) * 2008-12-16 2012-12-05 パナソニック株式会社 Screen printer and method for adjusting room temperature of screen printer
DE102009017907A1 (en) * 2009-04-17 2010-10-21 Weber Maschinenbau Gmbh Breidenbach Robot with delta kinematics
CN201501149U (en) * 2009-07-24 2010-06-09 上海南部塑料制品有限公司 High-precision printing device
DE102009058212B4 (en) * 2009-12-15 2016-06-09 Till Gmbh Method for operating a system for printing on containers
JP5799207B2 (en) * 2011-12-07 2015-10-21 パナソニックIpマネジメント株式会社 Mask holder
JP6123076B2 (en) * 2013-11-12 2017-05-10 パナソニックIpマネジメント株式会社 Screen printing apparatus and electronic component mounting system
DE102014218313B4 (en) * 2014-09-12 2017-05-04 Kba-Kammann Gmbh Transport device for processing in a processing machine and / or processed there objects
DE102015212515A1 (en) * 2015-07-03 2017-01-05 Thieme Gmbh & Co. Kg Screen printing apparatus and method for screen printing
CN105904133A (en) * 2016-07-06 2016-08-31 苏州睿牛机器人技术有限公司 Vehicle-mounted parallel welding robot system
DE102017214073A1 (en) * 2016-09-13 2018-03-15 Kba-Kammann Gmbh Processing machine with several processing stations for processing bodies
CN206217348U (en) * 2016-11-29 2017-06-06 东莞市迅源机械有限公司 A kind of sphere automatic screen-printing equipment
CN206690659U (en) * 2017-01-22 2017-12-01 广州市申发机电有限公司 A kind of full-automatic rapidly and efficiently polychrome surface of revolution screen process press
CN207807740U (en) * 2018-01-22 2018-09-04 邯郸市爱斯特应力技术有限公司 A kind of high-precision automatic workpiece holding robot device based on Internet of Things
FR3089861B1 (en) * 2018-12-14 2021-01-08 Commissariat Energie Atomique Screen printing process on an electrical and / or electronic component with two scraping systems

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005006732A1 (en) * 2005-02-02 2006-08-10 Thieme Gmbh & Co. Kg screen printing device

Also Published As

Publication number Publication date
CN112912250B (en) 2022-09-06
MX2020013897A (en) 2021-04-13
CN112912250A (en) 2021-06-04
DE102018124754B4 (en) 2022-03-24
US20210252846A1 (en) 2021-08-19
PL3863856T3 (en) 2023-01-23
WO2020074136A1 (en) 2020-04-16
EP3863856A1 (en) 2021-08-18
US11338569B2 (en) 2022-05-24
DE102018124754A1 (en) 2020-04-09

Similar Documents

Publication Publication Date Title
DE112016007358T5 (en) 3D printing system based on multi-axis joint control and machine vision measurement
EP3317106B1 (en) Screen printing device and method for screen printing
DE68906249T2 (en) DEVICE FOR APPLYING A LUBRICANT TO A MATRIX IN A MACHINE FOR THE PRODUCTION OF GLASS BOTTLES.
DE69206941T2 (en) Workpiece loading device
EP1170218A1 (en) Gripping device for thin and plateshaped workpieces
EP0366986B1 (en) Apparatus for cleaning a mould of plastic-working machines
EP0215389B1 (en) Printing and marking process for construction elements
EP3863856B1 (en) Screen printing device having a screen printing stencil as well as using method
DE102012010831B4 (en) Assembly robot for the assembly of injection molding machines or for the assembly of printed circuit boards
EP3416762A1 (en) Press brake and method for changing bending tools of a press brake
EP3873723B1 (en) Device for simultaneous 3d printing of a plurality of objects
EP3720715B1 (en) Machine for processing a tabular substrate with a movable vacuum table
DE102006022897B4 (en) Method for carrying out a cleaning process and apparatus for carrying out the method
EP3365176B1 (en) Direct printing method and container handling machine for printing a plurality of similar containers
EP3507095B1 (en) Processing machine with stations for processing bodies
DE2753295B2 (en) Device for the linear or flat application of treatment agents, e.g. paint on textile goods in sheet or piece form
DE102010002714B4 (en) Cavity protection system
DE102014019392A1 (en) 3D drum printer
DE10010107C2 (en) Device for printing printed sheets using the screen printing process
EP2274114B1 (en) Transporting apparatus with positioning stop
EP4401988A1 (en) Printing machine having at least one printing head
DE19645872C2 (en) Device for applying sealing compounds to non-circular lid edge contours
DE102016220970A1 (en) Printing machine for printing at least one print image on a printing substrate surface
DE9404585U1 (en) Spray coating system
EP3081330A2 (en) Device for inserting workpieces or tools into a machine tool

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20210118

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20220601

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502019005899

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1523922

Country of ref document: AT

Kind code of ref document: T

Effective date: 20221115

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20221012

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221012

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221012

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230213

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230112

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221012

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221012

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221012

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221012

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221012

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230212

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221012

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230113

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502019005899

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221012

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221012

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221012

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221012

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221012

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221012

26N No opposition filed

Effective date: 20230713

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221012

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221012

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20230531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221012

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230510

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230531

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230531

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230510

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230510

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230531

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20240516

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240607

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CZ

Payment date: 20240423

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20240522

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PL

Payment date: 20240422

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20240529

Year of fee payment: 6