EP2433797B1 - Pad printing press - Google Patents

Pad printing press Download PDF

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Publication number
EP2433797B1
EP2433797B1 EP11173577A EP11173577A EP2433797B1 EP 2433797 B1 EP2433797 B1 EP 2433797B1 EP 11173577 A EP11173577 A EP 11173577A EP 11173577 A EP11173577 A EP 11173577A EP 2433797 B1 EP2433797 B1 EP 2433797B1
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EP
European Patent Office
Prior art keywords
printing machine
pad
machine according
pad printing
cam
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Not-in-force
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EP11173577A
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German (de)
French (fr)
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EP2433797A1 (en
Inventor
Oliver Nitschke
Wilfried Philipp
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Tampoprint GmbH
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Tampoprint GmbH
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Publication of EP2433797A1 publication Critical patent/EP2433797A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
    • B41F17/001—Pad printing apparatus or machines

Definitions

  • the invention relates to a pad printing machine with a holder for a cliché, with a hollow body having Farbzu classroomvorides, wherein the hollow body rests with the work of the machine with its end face on the cliché, with a device for generating a relative movement between the cliché and the hollow body, and with a tampon which can be pressed onto the inked cliché and picks up the ink from the depressions of the cliché and transfers it to an object to be printed, wherein a drive device for the relative movement between the hollow body and the cliche has a first curve that can be driven in rotation and a drive device for the tampon has a second curve that can be driven in rotation, wherein both curves are arranged on a single control disk
  • a tampon printing machine in which the tampon is vertically movable via a guide piece from an upper end position to a lower end position and back, wherein it is pressed in the lower end position on the cliché.
  • the plate is moved back and forth in a horizontal direction via a piston-cylinder unit, where it is colored in one end position and in the other end position the color is lifted off the plate by means of the tampon. It has been found that only a certain printing frequency is possible with such a pad printing machine.
  • the US 5,921,177 A describes grooves formed as grooves, in which each a role is fitted without play.
  • the groove has the task to move the role in both directions, ie radially outward and radially inward, for which the two groove walls are used.
  • one groove wall exerts a force on the roller and in the other movement direction the other groove wall exerts a force on the roller.
  • the role is not only moved radially outward or inward but also rotated.
  • the rotation of the roller must be stopped because it is driven in the other direction.
  • the roller rolls off at one groove wall and travels at twice the travel speed on the opposite groove wall, causing the roller to wear out considerably.
  • the invention has for its object to provide a machine of the type described, with the lower wear higher pressure frequencies are possible.
  • first and the second curve are formed by webs or beads projecting axially from the control disk.
  • the curves are according to the invention therefore not on the edge of the control disc but on the side surface.
  • the one curve is preferably located on one side and the other curve on the other side surface.
  • the first and / or the second curve and the control disk are integrally formed.
  • the holder has two support rollers, which are in engagement with the first curve, such that the cliché is moved to a Einärbeposition and in a Farbabholposition, and that a pivotally mounted lever has two support rollers, which with the second curve are engaged, such that the lever is pivotable through the second curve in both pivoting directions, and that is coupled to the lever of the tampon.
  • the holder for the cliché is provided directly with the support rollers so that they can be ground directly from the first curve. Any game-related position inaccuracies are avoided.
  • the webs or beads in the radial direction In order to ensure a permanent contact of the support rollers on the curves, the webs or beads in the radial direction to a constant thickness. Since the webs or beads do not rotate as a concentric circle around the bearing, the wall thickness changes permanently. As a result, not only is a very quiet running achieved but it is also achieved that in the reversal points in which the tampon or the cliche reverse the direction of movement, the movement takes place smoothly.
  • one of the two support rollers is fixed resiliently or eccentrically adjustable on the holder and / or on the pivotally mounted lever or are. As a result, production-related game between the support rollers and the curve is compensated. In addition, the assembly of the support rollers is simplified to the curve.
  • one of the support rollers can be mounted adjustable in the direction of the curve.
  • the bias voltage can be generated and adjusted.
  • the first curve for a color-fetching position and optionally a coloring-in position has a circular-arc or circular-path-shaped region.
  • Optimal printing results are achieved when the cliché stands absolutely still in the color pickup, i. during the time when the tampon touches the cliché. This is caused by the fact that the curve is circular arc-shaped, so that no (displacement) forces act on the support roller (s). This can be beneficial for the inking position, so that the engraving is optimally colored. Between these positions, the cliché is maximally accelerated and delayed.
  • the arcuate or circular path-shaped region for the inking position extends over an angular range of 40 ° to 120 °, in particular from 70 ° to 110 ° and preferably of 100 °.
  • larger tampons or tampons can be used with a larger diameter, since the cliché remains relatively long in the inking position us thus early retracted and extended late.
  • the circular-arc or circular-path-shaped region for the color-picking position extends over an angular range of 40 ° to 165 °, in particular from 70 ° to 155 ° and preferably from 145 °.
  • the tampon can be placed on the cliché relatively slowly and lifted off again, as a result of which natural vibrations of the tampon are avoided or at least greatly reduced.
  • the tampon is mounted on a vertical linear guide. A pivoting or slipping of the tampon is thereby excluded.
  • the transmission of the pivoting movement of the lever on the linear guide is effected by the fact that the linear guide is fixed by means of a sliding block in a fork-shaped receptacle of the pivotally mounted lever.
  • a counterweight acts on the holder. This counterweight is moved counter to the cliché, so that opposing inertia forces are generated.
  • the counterweight can be mounted pivotably or movably on the housing of the pad printing machine. This aspect represents an independent idea of the invention.
  • a plurality of control disks and / or a plurality of pad printing machines can be driven by means of a single drive via a central drive shaft.
  • this workpieces can be printed several times, especially with different colors.
  • several tampon printing machines can be synchronized in this way. Because the drive can be a self-propelled or a third-party drive, there is the possibility that the pad printing machine can be coupled to the drive of a production facility.
  • FIG. 1 shows an embodiment of a total of 10 designated tampon printing machine, in which only the components relevant to the invention are shown.
  • a base plate 12 rails 14 are mounted for a carriage 16, on which a holder 18 for a cliché 20th is mounted.
  • the holder 18 with the cliché 20 can therefore move in the direction of the double arrow 22 back and forth.
  • two support rollers 26 and 28 are attached to the bracket 18, in particular on a bearing 24, which are supported on a first curve 30.
  • a hinge rod 32 is attached to the bearing 24 which engages a pivot lever 34 which is pivotally mounted about a housing-fixed pivot bearing 36.
  • a counterweight 38 is placed, which swings out as soon as the carriage 16 with bracket 18 and cliché 20 extends.
  • the support roller 28 is, as in the FIGS. 3 and 4 indicated, resilient and optionally adjustable attached to the bearing 24.
  • FIG. 2 shows the pad printing machine 10 from the other side and it is a driven gear 40 of a drive 42 recognizable, which is wrapped by a drive belt 44 which drives a seated on a drive shaft 46 drive wheel 48.
  • a control disk 50 On the drive shaft 46 is also a control disk 50 which carries a second curve 52.
  • the control disk On the opposite side, the control disk carries the first curve 30.
  • a lever 56 is pivotally mounted, at one end of a pressure ram 58 is articulated.
  • the end is fork-shaped, so that the fork rotatably mounted on the plunger 58 and slidably mounted in the fork Gleitsein 78 (FIGS. FIGS. 3 and 4 ).
  • a linear guide rail 60 is fixed, which is slidably mounted on a housing-fixed linear guide 62 in the vertical direction 64.
  • the length of the linear guide 62 is approximately half of the displacement, whereby a tilting of the pressure ram 58 is prevented.
  • an adapter device 66 On the cliché 20 facing the end of the push rod 58 is an adapter device 66, to which two Pressure pads 68 are attached, the lower end is located directly above the plate 20.
  • FIGS. 1 and 2 to recognize that on the plate 20 a Farbzu Genvorraum 70 with two hollow bodies 72 stores.
  • the ink containing hollow body 72 are placed such that the edge of its opening is seated on the plate 20, so that the engraving of the plate 20 is inked in the illustrated inking position with ink.
  • FIG. 3 shows a schematic side view of the control disk 50 and there are formed two curves 30 and 52 can be seen.
  • the two support rollers 26 and 28 of the bearing 24 engage at the first curve 30.
  • At the second curve 52 also engage two support rollers 74, which are arranged at the other end of the bearing 76 pivotally mounted lever 56.
  • the in the FIG. 3 shown positions of printing pad 68 and cliché 20 represent the color pickup position in which the cliché 20 is extended and the printing pad 68 is pressed onto the inked engraving of the plate 20, so that the printing pad 68 can have the color from the engraving.
  • FIG. 4 shows the printing position in which the cliché 20 is retracted and the pressure pad 68 carrying the ink is transferred to the below the cliché 20 located workpiece (not shown).
  • FIGS. 5 and 6 show the control disk 50 with the bead or web-like curves 30 and 52 which are integrally or integrally formed on the two end faces of the disc. Since the control disk 50 is a single component, there is no danger that the two curves 30 and 52 will move against each other. This not only facilitates the assembly work, since only one component has to be mounted, but also shortened, since the two curves no longer need to be adjusted. To recognize are also Compensation holes 80, by means of which the control disk 50 has been balanced.
  • the first curve 30 has two arc-shaped areas 82 and 84 which define the color pickup position and the inking position for the plate 20.
  • the first curve 30 is shaped such that the cliché 20 maximally accelerates and decelerates.
  • the cliché 20 thus has two rest positions.
  • the second curve 52 is shaped in such a way that the printing pad 68, after the color pickup (area 86), briefly lifts off from the plate 20, so that it can be moved back, and then pressed onto the workpiece relatively slowly in area 88. Since the cliché 20 is retracted with high acceleration, this region 88 can join the region 86 almost directly.
  • the printing pad 68 is lifted faster after the pressure than pressed.

Abstract

The pad printing machine (10) has a holder (18) for a printing block (20) and a color feeding device (70) having a hollow body. The hollow body lies on the printing block with its front surface during the operation of the machine. The two curves (30) are formed from bars or ridges axially projecting from a control disk.

Description

Die Erfindung betrifft eine Tampondruckmaschine mit einer Halterung für ein Klischee, mit einer einen Hohlkörper aufweisenden Farbzuführvorrichtung, wobei der Hohlkörper bei der Arbeit der Maschine mit seiner Stirnfläche auf dem Klischee aufliegt, mit einer Vorrichtung zum Erzeugen einer Relativbewegung zwischen dem Klischee und dem Hohlkörper, und mit einem Tampon, der auf das eingefärbte Klischee pressbar ist und die Farbe aus den Vertiefungen des Klischees aufnimmt und auf einen zu bedruckenden Gegenstand überträgt, wobei eine Antriebsvorrichtung für die Relativbewegung zwischen dem Hohlkörper und dem Klischee eine rotierend antreibbare erste Kurve aufweist und eine Antriebsvorrichtung für den Tampon eine rotierend antreibbare zweite Kurve aufweist, wobei beide Kurven an einer einzigen Steuerscheibe angeordnet sindThe invention relates to a pad printing machine with a holder for a cliché, with a hollow body having Farbzuführvorrichtung, wherein the hollow body rests with the work of the machine with its end face on the cliché, with a device for generating a relative movement between the cliché and the hollow body, and with a tampon which can be pressed onto the inked cliché and picks up the ink from the depressions of the cliché and transfers it to an object to be printed, wherein a drive device for the relative movement between the hollow body and the cliche has a first curve that can be driven in rotation and a drive device for the tampon has a second curve that can be driven in rotation, wherein both curves are arranged on a single control disk

Aus der EP 0 140 165 A ist eine Tampondruckmaschine bekannt, bei der der Tampon über ein Führungsstück vertikal von einer oberen Endstellung in eine untere Endstellung und zurück bewegbar ist, wobei er in der unteren Endstellung auf das Klischee aufgepresst wird. Gleichzeitig wird das Klischee über eine Kolben-Zylinder-Einheit in horizantaler Richtung hin und her bewegt, wobei es in der einen Endstellung eingefärbt und in der anderen Endstellung die Farbe mittels des Tampons vom Klischee abgehoben wird. Es hat sich gezeigt, dass mit einer derartigen Tampondruckmaschine nur eine bestimmte Druckfrequenz möglich sind.From the EP 0 140 165 A a tampon printing machine is known in which the tampon is vertically movable via a guide piece from an upper end position to a lower end position and back, wherein it is pressed in the lower end position on the cliché. At the same time, the plate is moved back and forth in a horizontal direction via a piston-cylinder unit, where it is colored in one end position and in the other end position the color is lifted off the plate by means of the tampon. It has been found that only a certain printing frequency is possible with such a pad printing machine.

Aus der EP 0 474 262 A ist eine Tampondruckmaschine bekannt, bei der das Klischee und der Tampon über zwei an Kurvenscheiben angreifenden Schwenkhebeln angetrieben werden. Das unvermeidbare Spiel der Schwenkhebel führt zu unexakten Druckbildern und mit dieser Tampondruckmaschine ist ebenfalls nur eine begrenzte Druckfrequenz möglich.From the EP 0 474 262 A a tampon printing machine is known in which the cliché and the pad are driven by two cam levers acting on cam levers. The inevitable game of the pivot lever leads to unexact Print images and with this pad printing machine is also only a limited print frequency possible.

Die US 5,921,177 A beschreibt als Nuten ausgebildete Kurven, in welchen je eine Rolle spielfrei eingepasst ist. Die Nut besitzt die Aufgabe, die Rolle in beide Richtung, also radial nach außen und radial nach innen zu bewegen, wofür die beiden Nutwände verwendet werden. In der einen Bewegungsrichtung übt die eine Nutwand eine Kraft auf die Rolle und in der anderen Bewegungsrichtung die andere Nutwand eine Kraft auf die Rolle aus. Dabei wird die Rolle nicht nur radial nach außen oder innen bewegt sondern auch in Drehung versetzt. Beim Wechsel von der einen auf die andere Nutwand muss die Drehbewegung der Rolle gestoppt werden, weil sie in die andere Drehrichtung angetrieben wird. Die Rolle rollt an der einen Nutwand ab und schleift mit doppelter Verfahrgeschwindigkeit an der gegenüber liegenden Nutwand, wodurch die Rolle stark verschleißt.The US 5,921,177 A describes grooves formed as grooves, in which each a role is fitted without play. The groove has the task to move the role in both directions, ie radially outward and radially inward, for which the two groove walls are used. In one direction of movement, one groove wall exerts a force on the roller and in the other movement direction the other groove wall exerts a force on the roller. The role is not only moved radially outward or inward but also rotated. When changing from one to the other groove wall, the rotation of the roller must be stopped because it is driven in the other direction. The roller rolls off at one groove wall and travels at twice the travel speed on the opposite groove wall, causing the roller to wear out considerably.

Der Erfindung liegt die Aufgabe zugrunde, eine Maschine der eingangs geschilderten Art zu schaffen, mit der bei geringem Verschleiß höhere Druckfrequenzen möglich sind.The invention has for its object to provide a machine of the type described, with the lower wear higher pressure frequencies are possible.

Diese Aufgabe wird dadurch gelöst, dass die erste und die zweite Kurve von von der Steuerscheibe axial abragenden Stegen oder Wülsten gebildet werden.This object is achieved in that the first and the second curve are formed by webs or beads projecting axially from the control disk.

Durch die Ausgestaltung der Antriebsvorrichtung, d.h. die Ausgestaltung beider Kurven an einer einzigen Steuerscheibe wird der wesentliche Vorteil erzielt, das der Tampon und das Klischee immer definiert zueinander bewegt werden. Dies resultiert daraus, dass die beiden Kurven nicht gegeneinander verstellt werden können. Somit verkürzt sich aber auch die Montagzeit der Tampondruckmaschine und es fällt aber auch die Zeit zum Einstellen der Kurven weg, was bei Kurven an separaten Scheiben erforderlich ist. Diese Kurvenscheiben müssen so lange gegeneinander verdreht werden, bis die Bewegungsabläufe von Tampon und Klischee exakt stimmen. Das Klischee muss zur Farbabholung nicht nur in der vorgegebenen Lage exakt positioniert sein sondern während des gesamten Farbabholvorganges auch die Lage beibehalten. Dies wird bei der erfindungsgemäßen Tampondruckmaschine gewährleistet.Due to the design of the drive device, ie the design of both curves on a single control disc of the essential advantage is achieved, the tampon and the cliché are always moved to each other defined. This results from the fact that the two curves can not be adjusted against each other. Thus, but also shortens the assembly time of the pad printing machine and it also falls away the time to adjust the curves, which is required for curves on separate discs. These cams must be rotated against each other until the movements of tampon and cliché are exactly right. The The cliché must not only be positioned exactly for the picking up of color in the given position, but also the position during the entire color pick-up process. This is ensured in the pad printing machine according to the invention.

Die Kurven befinden sich erfindungsgemäß also nicht am Rand der Steuerscheibe sondern an deren Seitenfläche. Dabei befindet sich in bevorzugter Weise die eine Kurve auf der einen und die andere Kurve auf der anderen Seitenfläche.The curves are according to the invention therefore not on the edge of the control disc but on the side surface. In this case, the one curve is preferably located on one side and the other curve on the other side surface.

Dabei sind in ebenfalls bevorzugter Ausführung der Erfindung die erste und/oder die zweite Kurve und die Steuerscheibe einstückig ausgebildet.In this case, in a likewise preferred embodiment of the invention, the first and / or the second curve and the control disk are integrally formed.

Bei einer Weiterbildung ist vorgesehen, dass die Halterung zwei Stützrollen aufweist, die mit der ersten Kurve in Eingriff sind, derart, dass das Klischee in eine Einfärbeposition und in eine Farbabholposition verfahrbar ist, und dass ein schwenkbar gelagerter Hebel zwei Stützrollen aufweist, die mit der zweiten Kurve in Eingriff sind, derart, dass der Hebel durch die zweite Kurve in beiden Schwenkrichtungen schwenkbar ist, und dass mit dem Hebel der Tampon gekoppelt ist. Bei der erfindungsgemäßen Tampondruckmaschine ist also die Halterung für das Klischee direkt mit den Stützrollen versehen so dass sie von der ersten Kurve direkt angerieben werden kann. Eventuelle spielbedingte Positionsungenauigkeiten werden dadurch vermieden.In a further development it is provided that the holder has two support rollers, which are in engagement with the first curve, such that the cliché is moved to a Einärbeposition and in a Farbabholposition, and that a pivotally mounted lever has two support rollers, which with the second curve are engaged, such that the lever is pivotable through the second curve in both pivoting directions, and that is coupled to the lever of the tampon. In the pad printing machine according to the invention, therefore, the holder for the cliché is provided directly with the support rollers so that they can be ground directly from the first curve. Any game-related position inaccuracies are avoided.

Um eine permanente Anlage der Stützrollen an den Kurven zu gewährleisten, weisen die Stege oder Wülste in radialer Richtung eine gleichbleibende Dicke auf. Da die Stege oder Wülste nicht als konzentrischer Kreis um die Lagerstelle umlaufen verändert sich die Wandstärke jedoch permanent. Hierdurch wird nicht nur ein sehr geräuscharmer Lauf erreicht sondern es wird auch erreicht, dass in den Umkehrpunkten, in denen der Tampon oder das Klischee die Bewegungsrichtung umkehren, der Bewegungsablauf ruckfrei erfolgt.In order to ensure a permanent contact of the support rollers on the curves, the webs or beads in the radial direction to a constant thickness. Since the webs or beads do not rotate as a concentric circle around the bearing, the wall thickness changes permanently. As a result, not only is a very quiet running achieved but it is also achieved that in the reversal points in which the tampon or the cliche reverse the direction of movement, the movement takes place smoothly.

Bei einem Ausführungsbeispiel der Erfindung ist vorgesehen, dass eine der beiden Stützrollen federnd oder exzentrisch einstellbar an der Halterung und/oder am schwenkbar gelagerten Hebel befestigt ist bzw. sind. Hierdurch wird fertigungstechnisch bedingtes Spiel zwischen den Stützrollen und der Kurve ausgeglichen. Außerdem wird die Montage der Stützrollen an die Kurve vereinfacht.In one embodiment of the invention it is provided that one of the two support rollers is fixed resiliently or eccentrically adjustable on the holder and / or on the pivotally mounted lever or are. As a result, production-related game between the support rollers and the curve is compensated. In addition, the assembly of the support rollers is simplified to the curve.

Mit Vorzug liegt oder liegen die federnd oder exzentrisch einstellbar gelagert Stützrolle(n) unter Vorspannung an der ersten und/oder zweiten Kurve an. Insbesondere kann eine der Stützrollen in Richtung der Kurve einstellbar gelagert sein. Hierdurch kann z.B. auch die Vorspannung erzeugt und eingestellt werden.With preference lies or are the resilient or eccentrically adjustable support roller (s) under bias on the first and / or second curve. In particular, one of the support rollers can be mounted adjustable in the direction of the curve. As a result, e.g. also the bias voltage can be generated and adjusted.

Bei einem bevorzugten Ausführungsbeispiel der Erfindung ist vorgesehen, dass die erste Kurve für eine Farbabholposition und gegebenenfalls eine Einfärbeposition einen kreisbogen- oder kreisbahnförmigen Bereich aufweist. Optimale Druckergebnisse werden erzielt, wenn das Klischee bei der Farbabholung absolut still steht, d.h. während der Zeit, in welcher der Tampon das Klischee berührt. Dies wird dadurch bewirkt, dass die Kurve kreisbogenförmig gestaltet ist, so dass keine (Verschiebe)-Kräfte auf die Stützrolle(n) einwirken. Dies kann auf für die Einfärbeposition von Vorteil sein, so dass die Gravur optimal eingefärbt wird. Zwischen diesen Positionen wird das Klischee maximal beschleunigt und verzögert.In a preferred exemplary embodiment of the invention, it is provided that the first curve for a color-fetching position and optionally a coloring-in position has a circular-arc or circular-path-shaped region. Optimal printing results are achieved when the cliché stands absolutely still in the color pickup, i. during the time when the tampon touches the cliché. This is caused by the fact that the curve is circular arc-shaped, so that no (displacement) forces act on the support roller (s). This can be beneficial for the inking position, so that the engraving is optimally colored. Between these positions, the cliché is maximally accelerated and delayed.

Mit Vorzug erstreckt sich der kreisbogen- oder kreisbahnförmigen Bereich für die Einfärbeposition über einen Winkelbereich von 40° bis 120°, insbesondere von 70° bis 110° und bevorzugt von 100°. Dadurch können größere Tampons bzw. Tampons mit größerem Durchmesser verwendet werden, da das Klischee relativ lange in der Einfärbeposition verbleibt uns somit früh eingezogen und spät ausgefahren wird.With preference, the arcuate or circular path-shaped region for the inking position extends over an angular range of 40 ° to 120 °, in particular from 70 ° to 110 ° and preferably of 100 °. As a result, larger tampons or tampons can be used with a larger diameter, since the cliché remains relatively long in the inking position us thus early retracted and extended late.

Ebenfalls von Vorteil ist, dass sich der kreisbogen- oder kreisbahnförmigen Bereich für die Farbabholposition über einen Winkelbereich von 40° bis 165°, insbesondere von 70° bis 155° und bevorzugt von 145° erstreckt. Dadurch kann der Tampon relativ langsam auf das Klischee aufgesetzt und wieder abgehoben werden, wodurch Eigenschwingungen des Tampons vermieden oder zumindest stark verringert werden.It is also of advantage that the circular-arc or circular-path-shaped region for the color-picking position extends over an angular range of 40 ° to 165 °, in particular from 70 ° to 155 ° and preferably from 145 °. As a result, the tampon can be placed on the cliché relatively slowly and lifted off again, as a result of which natural vibrations of the tampon are avoided or at least greatly reduced.

Um ein exaktes Aufsetzen des Tampons auf das Klischee zu gewährleisten ist vorgesehen, dass der Tampon an einer vertikalen Linearführung gelagert ist. Ein Verschwenken oder Verrutschen des Tampons wird dadurch ausgeschlossen.In order to ensure an exact placement of the tampon on the cliché is provided that the tampon is mounted on a vertical linear guide. A pivoting or slipping of the tampon is thereby excluded.

Die Übertragung der Schwenkbewegung des Hebels auf die Linearführung wird dadurch bewirkt, dass die Linearführung mittels eines Kulissensteines in einer gabelförmigen Aufnahme des schwenkbar gelagerten Hebels befestigt ist.The transmission of the pivoting movement of the lever on the linear guide is effected by the fact that the linear guide is fixed by means of a sliding block in a fork-shaped receptacle of the pivotally mounted lever.

Um durch die Oszillation des Klischees verursachte Vibrationen zu verringern ist vorgesehen, dass an der Halterung ein Gegengewicht angreift. Dieses Gegengewicht wird zum Klischee gegenläufig bewegt, so dass gegenläufige Massenträgheitskräfte erzeugt werden. Dabei kann das Gegengewicht schwenkbar oder verfahrbar am Gehäuse der Tampondruckmaschine gelagert sein. Dieser Aspekt stellt einen selbständigen Erfindungsgedanken dar.In order to reduce vibrations caused by the oscillation of the cliché, it is provided that a counterweight acts on the holder. This counterweight is moved counter to the cliché, so that opposing inertia forces are generated. In this case, the counterweight can be mounted pivotably or movably on the housing of the pad printing machine. This aspect represents an independent idea of the invention.

Bevorzugt sind mittels eines einzigen Antriebs über eine zentrale Antriebswelle mehrere Steuerscheiben und/oder mehrere Tampondruckmaschinen antreibbar. Insbesondere können dadurch Werkstücke mehrfach, insbesondere mit unterschiedlichen Farben, bedruckt werden. Außerdem sind auf diese Weise mehrere Tampondruckmaschinen synchronisierbar. Dadurch, dass der Antrieb ein Eigen- oder ein Fremdantrieb sein kann, besteht die Möglichkeit, dass die Tampondruckmaschine an den Antrieb einer Fertigungseinrichtung ankoppelbar ist.Preferably, a plurality of control disks and / or a plurality of pad printing machines can be driven by means of a single drive via a central drive shaft. In particular, this workpieces can be printed several times, especially with different colors. In addition, several tampon printing machines can be synchronized in this way. Because the drive can be a self-propelled or a third-party drive, there is the possibility that the pad printing machine can be coupled to the drive of a production facility.

Weitere Merkmale, Einzelheiten und Vorteile der Erfindung ergeben sich aus den Unteransprüchen und der nachfolgenden Beschreibung, in der ein bevorzugtes Ausführungsbeispiele der Erfindung anhand der Zeichnung, die erfindungswesentliche Einzelheiten zeigt, im einzelnen beschrieben ist. Die einzelnen Merkmale können je einzeln für sich oder zu mehreren in beliebiger Kombination bei anderen Ausführungsformen der Erfindung verwirklicht sein.Further features, details and advantages of the invention will become apparent from the subclaims and the following description in which a preferred embodiments of the invention with reference to the drawing, the invention essential details shows, is described in detail. The individual features may be implemented individually for themselves or for several in any combination in other embodiments of the invention.

In der Zeichnung zeigen

Figur 1
eine erste perspektivische Ansicht eines bevorzugten Ausführungsbeispiels einer Tampondruckmaschine gemäß der Erfindung;
Figur 2
eine zweite perspektivische Ansicht der Tampondruckmaschine gemäß Figur 1;
Figur 3
eine schematische Seitenansicht der Steuerscheibe mit an den Kurven angreifenden Stützrollen in einer ersten Stellung von Tampon und Klischee;
Figur 4
eine schematische Seitenansicht der Steuerscheibe mit an den Kurven angreifenden Stützrollen in einer zweiten Stellung von Tampon und Klischee;
Figur 5
eine perspektivische Ansicht der Steuerscheibe, die erste Kurve zeigend; und
Figur 6
eine perspektivische Ansicht der Steuerscheibe, die zweite Kurve zeigend.
In the drawing show
FIG. 1
a first perspective view of a preferred embodiment of a pad printing machine according to the invention;
FIG. 2
a second perspective view of the pad printing machine according to FIG. 1 ;
FIG. 3
a schematic side view of the control disc with acting on the curves support rollers in a first position of tampon and cliché;
FIG. 4
a schematic side view of the control disc with acting on the curves support rollers in a second position of tampon and cliché;
FIG. 5
a perspective view of the control disk, showing the first curve; and
FIG. 6
a perspective view of the control disk, showing the second curve.

Die Figur 1 zeigt ein Ausführungsbeispiel einer insgesamt mit 10 bezeichneten Tampondruckmaschine, bei welcher lediglich die für die Erfindung relevanten Bauteile dargestellt sind. An einer Grundplatte 12 sind Schienen 14 für eine Schlitten 16 befestigt, auf welchem eine Halterung 18 für ein Klischee 20 montiert ist. Die Halterung 18 mit dem Klischee 20 kann also in Richtung des Doppelpfeils 22 hin und her fahren. Hierfür sind an der Halterung 18, insbesondere an einem Lager 24, zwei Stützrollen 26 und 28 befestigt, die sich an einer ersten Kurve 30 abstützen. Außerdem ist am Lager 24 eine Gelenkstange 32 befestigt, die an einem Schwenkhebel 34 angreift, die um ein gehäusefestes Schwenklager 36 verschwenkbar gelagert ist. Auf das andere Ende des Schwenkhebels 34 ist ein Gegengewicht 38 aufgesetzt, welcher ausschwenkt, sobald der Schlitten 16 mit Halterung 18 und Klischee 20 ausfährt. Die Stützrolle 28 ist, wie in den Figuren 3 und 4 angedeutet, federnd und gegebenenfalls einstellbar am Lager 24 befestigt.The FIG. 1 shows an embodiment of a total of 10 designated tampon printing machine, in which only the components relevant to the invention are shown. On a base plate 12 rails 14 are mounted for a carriage 16, on which a holder 18 for a cliché 20th is mounted. The holder 18 with the cliché 20 can therefore move in the direction of the double arrow 22 back and forth. For this purpose, two support rollers 26 and 28 are attached to the bracket 18, in particular on a bearing 24, which are supported on a first curve 30. In addition, a hinge rod 32 is attached to the bearing 24 which engages a pivot lever 34 which is pivotally mounted about a housing-fixed pivot bearing 36. On the other end of the pivot lever 34, a counterweight 38 is placed, which swings out as soon as the carriage 16 with bracket 18 and cliché 20 extends. The support roller 28 is, as in the FIGS. 3 and 4 indicated, resilient and optionally adjustable attached to the bearing 24.

Die Figur 2 zeigt die Tampondruckmaschine 10 von der anderen Seite und es ist ein Abtriebsrad 40 eines Antriebs 42 erkennbar, welches von einem Antriebsriemen 44 umschlungen ist, der ein auf einer Antriebswelle 46 sitzendes Antriebsrad 48 antreibt. Auf der Antriebswelle 46 befindet sich auch eine Steuerscheibe 50, die eine zweite Kurve 52 trägt. Auf der gegenüber liegenden Seite trägt die Steuerscheibe die erste Kurve 30.The FIG. 2 shows the pad printing machine 10 from the other side and it is a driven gear 40 of a drive 42 recognizable, which is wrapped by a drive belt 44 which drives a seated on a drive shaft 46 drive wheel 48. On the drive shaft 46 is also a control disk 50 which carries a second curve 52. On the opposite side, the control disk carries the first curve 30.

An einem gehäusefesten Lagerbock 54 ist ein Hebel 56 schwenkbar gelagert, an dessen einem Ende ein Druckstößel 58 angelenkt ist. Hierfür ist das Ende gabelförmig ausgebildet, so dass die Gabel einen am Druckstößel 58 drehbar und in der Gabel verschieblich gelagerten Gleitsein 78 (Figuren 3 und 4) aufnehmen kann. Am Druckstößel 58 ist eine Linearführungsschiene 60 befestigt, die an einer gehäusefesten Linearführung 62 in vertikaler Richtung 64 verschieblich gelagert ist. Die Länge der Linearführung 62 beträgt in etwa der Hälfte des Verschiebeweges, wodurch ein Kippen des Druckstößels 58 verhindert wird.On a housing-fixed bearing block 54, a lever 56 is pivotally mounted, at one end of a pressure ram 58 is articulated. For this purpose, the end is fork-shaped, so that the fork rotatably mounted on the plunger 58 and slidably mounted in the fork Gleitsein 78 (FIGS. FIGS. 3 and 4 ). On the plunger 58, a linear guide rail 60 is fixed, which is slidably mounted on a housing-fixed linear guide 62 in the vertical direction 64. The length of the linear guide 62 is approximately half of the displacement, whereby a tilting of the pressure ram 58 is prevented.

Am dem Klischee 20 zugewandten Ende des Druckstößels 58 befindet sich eine Adaptervorrichtung 66, an welcher zwei Drucktampons 68 befestigt sind, deren unteres Ende sich unmittelbar oberhalb des Klischees 20 befindet.On the cliché 20 facing the end of the push rod 58 is an adapter device 66, to which two Pressure pads 68 are attached, the lower end is located directly above the plate 20.

Außerdem ist in den Figuren 1 und 2 zu erkennen, dass auf dem Klischee 20 eine Farbzuführvorrichtung 70 mit zwei Hohlkörpern 72 lagert. Die Druckfarbe enthaltenden Hohlkörper 72 sind derart platziert, dass der Rand ihrer Öffnung auf dem Klischee 20 aufsitzt, so dass die Gravur des Klischees 20 in der dargestellten Einfärbeposition mit Druckfarbe eingefärbt wird.Moreover, in the FIGS. 1 and 2 to recognize that on the plate 20 a Farbzuführvorrichtung 70 with two hollow bodies 72 stores. The ink containing hollow body 72 are placed such that the edge of its opening is seated on the plate 20, so that the engraving of the plate 20 is inked in the illustrated inking position with ink.

Die Figur 3 zeigt eine schematische Seitenansicht der Steuerscheibe 50 und es sind die daran ausgebildeten beiden Kurven 30 und 52 erkennbar. Wie bereits erwähnt greifen an der ersten Kurve 30 die beiden Stützrollen 26 und 28 des Lagers 24 an. An der zweiten Kurve 52 greifen ebenfalls zwei Stützrollen 74 an, die am anderen Ende des am Lager 76 schwenkbar gelagerten Hebels 56 angeordnet sind. Die in der Figur 3 dargestellten Positionen von Drucktampon 68 und Klischee 20 stellen die Farbabholposition dar, in welcher das Klischee 20 ausgefahren ist und der Drucktampon 68 auf die eingefärbte Gravur des Klischees 20 aufgedrückt wir, so dass der Drucktampon 68 die Farbe aus der Gravur aushaben kann.The FIG. 3 shows a schematic side view of the control disk 50 and there are formed two curves 30 and 52 can be seen. As already mentioned, the two support rollers 26 and 28 of the bearing 24 engage at the first curve 30. At the second curve 52 also engage two support rollers 74, which are arranged at the other end of the bearing 76 pivotally mounted lever 56. The in the FIG. 3 shown positions of printing pad 68 and cliché 20 represent the color pickup position in which the cliché 20 is extended and the printing pad 68 is pressed onto the inked engraving of the plate 20, so that the printing pad 68 can have the color from the engraving.

Die Figur 4 zeigt die Druckposition, in welcher das Klischee 20 eingefahren ist und der die Druckfarbe tragende Drucktampon 68 auf das unterhalb des Klischees 20 sich befindende Werkstück (nicht dargestellt) übertragen wird.The FIG. 4 shows the printing position in which the cliché 20 is retracted and the pressure pad 68 carrying the ink is transferred to the below the cliché 20 located workpiece (not shown).

Die beiden Figuren 5 und 6 zeigen die Steuerscheibe 50 mit den wulst- oder stegartigen Kurven 30 und 52, die einstückig oder einteilig an den beiden Stirnseiten der Scheibe ausgebildet sind. Da die Steuerscheibe 50 ein einziges Bauteil ist, besteht keine Gefahr, dass sich die beiden Kurven 30 und 52 gegeneinander verstellen. Hierdurch wird nicht nur die Montagearbeit erleichtert, da nur ein Bauteil montiert werden muss, sondern auch verkürzt, da die beiden Kurven nicht mehr eingestellt werden müssen. Zu erkennen sind auch Ausgleichsbohrungen 80, mittels welcher die Steuerscheibe 50 ausgewuchtet wurde.The two FIGS. 5 and 6 show the control disk 50 with the bead or web-like curves 30 and 52 which are integrally or integrally formed on the two end faces of the disc. Since the control disk 50 is a single component, there is no danger that the two curves 30 and 52 will move against each other. This not only facilitates the assembly work, since only one component has to be mounted, but also shortened, since the two curves no longer need to be adjusted. To recognize are also Compensation holes 80, by means of which the control disk 50 has been balanced.

Deutlich erkennbar ist in der Figur 5, dass die erste Kurve 30 zwei kreisbogenförmige Bereiche 82 und 84 aufweist, die die Farbabholposition und die die Einfärbeposition für das Klischee 20 definieren. Dazwischen ist die erste Kurve 30 derart geformt, dass das Klischee 20 maximal beschleunigt und verzögert. Das Klischee 20 hat also zwei Ruhepositionen. Die zweite Kurve 52 ist dagegen so geformt, dass der Drucktampon 68 nach der Farbabholung (Bereich 86) kurz vom Klischee 20 abhebt, so dass dieses zurückgefahren werden kann, und dann relativ langsam im Bereich 88 auf das Werkstück aufgedrückt wird. Da das Klischee 20 mit hoher Beschleunigung eingezogen wird, kann sich dieser Bereich 88 nahezu unmittelbar an den Bereich 86 anschließen. Der Drucktampon 68 wird nach dem Druck schneller abgehoben als aufgedrückt. Durch die hohen Beschleunigungen und Verzögerungen des Klischees 20 kann dieses relativ lange in den beiden Ruhelagen verweilen, so dass der Drucktampon 68 einerseits mit verringerter Geschwindigkeit bewegt werden kann, wodurch dich die Druckqualität erhöht, andererseits auch größere Drucktampons 68 verwendet werden können, da der für das Vorbeifahren des Drucktampons 68 am Klischee 20 Zeitraum relativ lange ist.It is clearly recognizable in the FIG. 5 in that the first curve 30 has two arc-shaped areas 82 and 84 which define the color pickup position and the inking position for the plate 20. In between, the first curve 30 is shaped such that the cliché 20 maximally accelerates and decelerates. The cliché 20 thus has two rest positions. On the other hand, the second curve 52 is shaped in such a way that the printing pad 68, after the color pickup (area 86), briefly lifts off from the plate 20, so that it can be moved back, and then pressed onto the workpiece relatively slowly in area 88. Since the cliché 20 is retracted with high acceleration, this region 88 can join the region 86 almost directly. The printing pad 68 is lifted faster after the pressure than pressed. Due to the high accelerations and decelerations of the plate 20, this can remain relatively long in the two rest positions, so that the printing pad 68 can be moved on the one hand at reduced speed, which increases the print quality, on the other hand, larger printing pads 68 can be used because of the passing of the printing pad 68 on the plate 20 period is relatively long.

Claims (15)

  1. A pad printing machine (10) comprising a holder (18) for the printing plate (20), an ink supply device (70)having a hollow body (72), wherein the front face of the hollow body (72) rests on the printing plate (20) during operation of the machine, a device to create a relative movement between the printing plate (20) and the hollow body (72), and a printing pad (68) pressable onto the inked printing plate (20) constructed to receive ink from recesses disposed in the printing plate (20) to transfer the received ink to an object to be printed, wherein a drive assembly that produces the relative movement between the hollow body (72) and the printing plate (20) having a rotatably driven first cam (30) and a drive assembly for the pad (68) having a rotatably driven second cam (52), wherein both cams (30 and 52) are formed on a single control disc (50), characterized in that the first and the second cam (30 and 52) are formed by ribs or beads axially projecting from the control disc (50).
  2. The pad printing machine of claim 1, wherein the ribs have uniform thickness in a radial direction.
  3. The pad printing machine according to one of the preceding claims, characterized in that the first and/or the second cam (30, 52) and the control disc (50) are formed as a single piece.
  4. The pad printing machine according to one of the preceding claims, characterized in that the holder (18) comprises two support rolls (26, 28) which engage with the first cam (30) so as to move the printing plate (20) to an inking position and to an ink withdrawal position and/or a pivotally supported lever (56) having two support rolls (74) which engage with the second cam (52) so as to pivot the lever (56) in opposing pivoting directions, wherein the printing pad (68) is coupled with the lever (56).
  5. The pad printing machine according to claim 4, characterized in that one of the two support rolls (26, 28, 74) is/are spring-loaded and/or adjustably mounted on the holder (18) and/or mounted on the pivotally supported lever (56).
  6. The pad printing machine according to claim 5, characterized in that the spring-loaded or adjustably supported support roll(s) (26, 28, 74) contact(s) the first and/or second cam (30, 52) cam with a pretension.
  7. The pad printing machine according to one of the preceding claims, characterized in that the first cam (30) has a region (82, 84) associated with an ink withdrawal position and/or an inking position, the region being shaped as a circular arc or a circle.
  8. The pad printing machine according to claim 7, characterized in that the region (84) formed as a circular arc or a circle extends over an angular range of 40° to 120°, or over an angular range of 70° to 110° or an angle of 100°.
  9. The pad printing machine according to claim 7 or 8, characterized in that the region (82) formed as a circular arc or a circle extends over an angular range of 40° to 165°, or over an angular range of 70° to 155° or an angle of 145°.
  10. The pad printing machine according to one of the preceding claims, characterized in that the printing pad (68) is supported on a vertical linear guide (58, 60, 62).
  11. The pad printing machine according to claim 10, characterized in that the linear guide (58, 60) is attached with a sliding block (78) in a fork-shaped receptacle of the pivotally supported lever (56).
  12. The pad printing machine according to one of the preceding claims, characterized in that a counterweight (38) engaging on the holder (18).
  13. The pad printing machine according to claim 13, characterized in that the counterweight (38) is pivotally or displaceably supported.
  14. The pad printing machine according to one of the preceding claims, characterized in that several control discs (50) and/or several pad printing machines (10) can be driven by a single drive via are a single central driveshaft (46).
  15. The pad printing machine according to claim 14, characterized in that the drive (42) is an internal drive or an external drive.
EP11173577A 2010-09-28 2011-07-12 Pad printing press Not-in-force EP2433797B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010041522A DE102010041522B4 (en) 2010-09-28 2010-09-28 Pad Printing Machine

Publications (2)

Publication Number Publication Date
EP2433797A1 EP2433797A1 (en) 2012-03-28
EP2433797B1 true EP2433797B1 (en) 2012-10-31

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ID=45044296

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11173577A Not-in-force EP2433797B1 (en) 2010-09-28 2011-07-12 Pad printing press

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US (1) US8490544B2 (en)
EP (1) EP2433797B1 (en)
DE (1) DE102010041522B4 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103240981A (en) * 2013-05-30 2013-08-14 昆山欧莱特印刷机械工业有限公司 Sealed printing ink cup of pad printing machine

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2972295A (en) * 1959-07-17 1961-02-21 Irmo E Tiritilli Machine for printing on a longitudinal object revolvable about a longitudinal axis of revolution
US4060031A (en) * 1969-08-02 1977-11-29 Wilfried Philipp Printing method and apparatus for performing the printing method
DE3335230A1 (en) 1983-09-29 1985-04-11 Wilfried 7014 Kornwestheim Philipp TAMPON PRINTING MACHINE
DE3737937A1 (en) 1987-11-07 1989-05-18 Tampoprint Gmbh TAMPON PRINTING MACHINE
DE4413807C1 (en) * 1994-04-20 1995-09-14 Windmoeller & Hoelscher Device for changing the cylinders on a printing press
DE29615096U1 (en) 1996-08-30 1996-11-28 Tampoprint Gmbh Pad printing machine
DE29615092U1 (en) 1996-08-30 1996-11-28 Tampoprint Gmbh Pad printing machine
US5694839A (en) * 1996-09-18 1997-12-09 Trans Tech America, Inc. Method and apparatus for pad printing cylindrical items
US5921177A (en) * 1998-06-04 1999-07-13 John K. Shin Pad printing machine
US6363849B1 (en) * 1999-08-09 2002-04-02 Tampoprint Gmbh Tampon printing machine having laser engraving device
US6813998B2 (en) * 2002-12-28 2004-11-09 Roebuck Malcolm J Pad printing machine

Also Published As

Publication number Publication date
DE102010041522B4 (en) 2012-11-29
US20120073459A1 (en) 2012-03-29
DE102010041522A1 (en) 2012-03-29
EP2433797A1 (en) 2012-03-28
US8490544B2 (en) 2013-07-23

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