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EP1310360B1 - Flexographic printing machine with alternative manual and automatic applicable ink transfer rollers - Google Patents

Flexographic printing machine with alternative manual and automatic applicable ink transfer rollers Download PDF

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Publication number
EP1310360B1
EP1310360B1 EP02016586A EP02016586A EP1310360B1 EP 1310360 B1 EP1310360 B1 EP 1310360B1 EP 02016586 A EP02016586 A EP 02016586A EP 02016586 A EP02016586 A EP 02016586A EP 1310360 B1 EP1310360 B1 EP 1310360B1
Authority
EP
European Patent Office
Prior art keywords
format cylinder
anilox roller
drive
flexographic printing
roller
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP02016586A
Other languages
German (de)
French (fr)
Other versions
EP1310360A2 (en
EP1310360A3 (en
Inventor
Klaus Lapehn
Dietmar Koopmann
Günter Rogge
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.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher KG
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 Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG
Publication of EP1310360A2 publication Critical patent/EP1310360A2/en
Publication of EP1310360A3 publication Critical patent/EP1310360A3/en
Application granted granted Critical
Publication of EP1310360B1 publication Critical patent/EP1310360B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F5/00—Rotary letterpress machines
    • B41F5/24—Rotary letterpress machines for flexographic printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B41F13/24—Cylinder-tripping devices; Cylinder-impression adjustments
    • B41F13/26—Arrangement of cylinder bearings
    • B41F13/30—Bearings mounted on sliding supports

Definitions

  • the invention relates to a flexographic printing machine according to the preamble of claim 1 and a method for operating the same.
  • the DE 3246938 therefore proposes the use of a single drive that acts on the spindles via automatic couplings. Has a bearing block reaches the desired position, so releases the corresponding coupling, so that the spindle is not moved further.
  • the adjustment and monitoring of the desired position is carried out by position indicators and position detectors which are mounted on the bearing blocks or the machine frame. But also the use of automatic couplings and position detectors is expensive.
  • the bearing blocks for format cylinder and anilox roller are manually adjustable via handwheels.
  • the object of the present invention is to propose a flexographic printing press, in which the adjustment of the printing position can be done with cheaper means.
  • the drive can then be used relatively inexpensive motors.
  • a drive has a stop.
  • This stop can be part of the gearbox and can be adjusted if necessary during the manual setting of the roller position.
  • this at least one stop can also be part of the drive as standard. So there are even drives that operate in operation between two stops, and only limited rotations (for example, 180 °) allow.
  • FIG. 1 shows a side view of an inking unit 100 of a flexographic printing machine according to the invention 101.
  • the inking unit includes, among other things employed against the counter-pressure roller 103 form cylinder 104 and the anilox roller 105, which is employed against the format cylinder 104.
  • the components of the inking unit 100 rest on the console of the inking unit 106.
  • the linear guide 107 of the format cylinder is attached.
  • the angle bracket 109 of the format cylinder slides over the linear guide 107.
  • This angle bracket carries both the bearing 110 of the format cylinder 105 and the linear guides 111 of the anilox roller, on which in turn slide the carriage 112 of the anilox roller. Therefore, one speaks in such an arrangement of a piggyback.
  • the anilox roller 105 is mounted in the block 113. Both carriages 108, 112 are moved by spindles 115, 116 on the linear guides 107, 111. The spindles reach through the gearbox 2 ( FIG. 2 ). On the front side of the transmission, the handwheel 117 can be seen. The two locking screws 118 and 119 are used to determine the fine adjustments 120, 121 for the two spindles, which in FIG. 2 you can see.
  • FIG. 2 is a view of the transmission components of the inking unit from the outlined by the arrow 122 angle.
  • the lying behind the gears 2 elements of the printing unit seen from the outlined direction of view are not shown in this figure.
  • FIG. 2 illustrates that both the angle bracket 109 of the format cylinder 104 and the block of the anilox roller 2 spindles 115, 116 are assigned, which are moved by two gears 2. These two gears 2 are arranged largely mirror images of each other.
  • the drive of the central helical gears 4 of both gear 2 which are connected by a shaft 123, however, can be made both by the handwheel 117 on the left edge of the image and by the drive 124.
  • the drive takes place pneumatically in the embodiment shown, wherein the drive has a front and a rear stop, which the stop movement limited by the motor.
  • the drive is connected via a coupling 125 with the central helical gear 4 of the right transmission 2.
  • the coupling ensures both the separability of the drive from the helical gear, as well as the manual rotation of the same 4 with the engine stopped.
  • the shaft 123 is covered by a fairing.
  • FIG. 3 again shows the manually operable side of the transmission 2 and illustrates the position of the section AB which in FIG. 4 is shown.
  • FIG. 4 clarifies in turn the location of the section CD, which in FIG. 5 is shown.
  • the inner workings of the gearbox 2 should be understood against the background of the last two figures.
  • the central helical gear 4 is supported by rolling bearings 17 and plain bearings 27. It is in a helical engagement with the gear 3, which is rotated when the central helical gear 4 is rotated by either the hand wheel 117 or the drive 124.
  • the axis of rotation of the gear 3 is orthogonal to the axis of rotation of the central helical gear 4.
  • the gear 3 rotates in its rotation, the spindle 115, since the key 25 forces these two gear elements to a common rotation about their common principal axis of inertia.
  • This rotation of the spindle 115 in turn leads to a translation of the same 115, since the spindle is seated in the nut 5 which is fixed in the axial direction.
  • the coarse adjustment of the roller positions is carried out in the manner described, wherein both spindles are moved simultaneously.
  • the fine adjustment of the spindles 115, 116 is done individually by the manual operation of the fine adjustments 120, 121, which drive the two screws 6.
  • Each of these two screws is in turn with the worm wheel 5 and the nut 7 in engagement. Therefore A rotation of the screw 6 about its 6 main axis of inertia to a rotation of the worm wheel 5 and the nut 7.
  • the latter two components 5, 7 are positively constrained by the cylindrical pin 14 in its circumferential direction and together form a two-part nut, which - as already mentioned - Is not significantly displaced in the axial direction of the spindle, since it is prevented by the ball roller bearings 9 and 10 at such a translation.
  • these ball roller bearings 9, 10 allow the rotation of the nut 5, 7 about their main axis of inertia.
  • a rotation of the otherwise stationary two-part nut 5, 7 therefore leads to a translation of the respective spindles 115, 116, which do not rotate during this fine adjustment, otherwise the entire facial expressions of coarse adjustment 4, 3, 25 would have to rotate.
  • the described translation of the circumferentially stationary spindles in their individual vorrisebaren fine adjustment also builds no forces between the facial expressions of the coarse adjustment 4, 3, 25 and the facial expressions of fine adjustment 6, 7, 5, 14, since the facial expressions of coarse adjustment no resistance builds up the translation during the fine adjustment.
  • the spindles 115, 116 slide along the key 25, which engages in a groove in the spindles 115, 116 ( FIG. 4 ).
  • the key is in turn screwed to the screw 26 with the gear 3 and is thus relative to the translation of the spindles 115, 116 also stationary.
  • the threaded bushes 8 are in turn rotatable in a thread in the gear housing 127 about its main axis of inertia. The mentioned rotation is performed by inserting pins of a suitable turning tool into the blind holes 114 of the threaded bushing 8, so that the threaded bushing 8 can be rotated with the tool. By the rotation of the threaded bushing 8, the position of the same 8 in the axial direction of the spindle can be adjusted from the outside.
  • Coarse adjustment can be further improved by the operation of the fine adjustments 120, 121.
  • the fine adjustment is done individually for the anilox roller 104 and the format cylinder 105.
  • the printing process is recorded in the set position. If after a crack of the printing web 128, there is a need to start the anilox roller and the format cylinder from the counter-pressure roller, the torque required for this is applied by the drive 124 and transmitted via the clutch 125 to the central helical gear 4.
  • the drive 124 has the same two integrated and therefore not shown attacks that limit its rotational movement.
  • the drive 124 rotates the central helical gear 4 at a fixed angle, with the rotor of the drive rotating from the front to the rear stop. In this way, the Abstellterrorism the anilox roller and the format cylinder is brought about.
  • the drive is again operated in the reverse direction, the rotor of the drive again reaches the front stop.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Screen Printers (AREA)

Abstract

The printing position of the format cylinder (104) and of the screen roller(105) is set by placing the format cylinder against the counter-pressure roller (103), and the screen roller against the format cylinder with a manually operated placement device (2,115,116,108,112,107,111). The format cylinder and or screen roller is removed from the manually set position and restored to the same position by at least one drive mechanism(124).

Description

Die Erfindung betrifft eine Flexodruckmaschine nach dem Oberbegriff des Anspruchs 1 sowie ein Verfahren zum Betrieb derselben.The invention relates to a flexographic printing machine according to the preamble of claim 1 and a method for operating the same.

Flexodruckmaschinen der im Oberbegriff des Anspruchs 1 genannten Art sind bekannt. So zeigen die DE 092 09 455 U1 und die EP 0 438 716 B1 Maschinen dieser Art. Diese Schriften verdeutlichen auch, dass die Anstellvorrichtungen, mit denen Kraft oder Drehmoment auf die Lagerungen der Rasterwalze und des Formatzylinders übertragen wird, um diese Walzen zu positionieren, unterschiedlich ausgeprägt sein können. In der Regel umfassen sie Getriebe, Spindeln, Gleitführungen und Schlitten.Flexographic printing machines mentioned in the preamble of claim 1 are known. So show the DE 092 09 455 U1 and the EP 0 438 716 B1 Machines of this type. These documents also illustrate that the adjusting devices, with which force or torque is transmitted to the bearings of the anilox roller and the format cylinder in order to position these rollers, may be different. They usually include gears, spindles, slideways and slides.

Da bei Flexodruckmaschinen die Notwendigkeit besteht, den Formatzylinder exakt an die Gegendruckwalze anzustellen und die Rasterwalze exakt zum Formatzylinder zu positionieren und dieser aufwendige und akribisch durchzuführende Einstellvorgang bei Materialwechseln, Rissen der Druckbahnen, Auswechslungsvorgängen der Klischees oder der gesamten Formatzylinder usw. wiederholt werden muss, kommen exakt aber schnell arbeitende Antriebe, z. B. Schrittmotoren, bei diesen Einstellvorgängen zum Einsatz. Diese Antriebe sind teuer.Since in flexographic printing presses there is a need to adjust the format cylinder exactly to the platen roller and position the anilox roller exactly to the format cylinder and this complex and meticulous adjustment process for material changes, cracks in the printing lines, replacement processes of the plates or the entire format cylinder, etc. must be repeated come exact but fast operating drives, eg. B. stepper motors, in these setting operations used. These drives are expensive.

Die DE 3246938 schlägt daher die Verwendung eines einzigen Antriebes vor, der über automatische Kupplungen auf die Spindeln wirkt. Hat ein Lagerbock die gewünschte Position erreicht, so löst die entsprechende Kupplung, so dass die Spindel nicht weiter bewegt wird. Die Einstellung und Überwachung der gewünschten Position erfolgt durch Positionszeiger und Positionsdetektoren, die an den Lagerböcken bzw. dem Maschinengestell angebracht sind. Aber auch die Verwendung von automatischen Kupplungen und Positionsdetektoren ist teuer. Die Lagerböcke für Formatzylinder und Rasterwalze sind manuell über Handräder einstellbar.The DE 3246938 therefore proposes the use of a single drive that acts on the spindles via automatic couplings. Has a bearing block reaches the desired position, so releases the corresponding coupling, so that the spindle is not moved further. The adjustment and monitoring of the desired position is carried out by position indicators and position detectors which are mounted on the bearing blocks or the machine frame. But also the use of automatic couplings and position detectors is expensive. The bearing blocks for format cylinder and anilox roller are manually adjustable via handwheels.

Daher besteht die Aufgabe der vorliegenden Erfindung darin, eine Flexodruckmaschine vorzuschlagen, bei welcher die Einstellung der Druckposition mit kostengünstigeren Mitteln erfolgen kann.Therefore, the object of the present invention is to propose a flexographic printing press, in which the adjustment of the printing position can be done with cheaper means.

Die Aufgabe wird durch den kennzeichnenden Teil des Anspruchs 1 gelöst.The object is solved by the characterizing part of claim 1.

Als Antrieb lassen sich dann relativ kostengünstige Motoren einsetzen. In diesem Zusammenhang ist es vorteilhaft, wenn ein solcher Antrieb über einen Anschlag verfügt. Dieser Anschlag kann Bestandteil des Getriebes sein und kann gegebenenfalls bei der manuellen Einstellung der Walzenposition mit eingestellt werden. Dieser zumindest eine Anschlag kann jedoch auch serienmäßiger Bestandteil des Antriebs sein. So gibt es sogar Antriebe, welche im Betrieb zwischen zwei Anschlägen arbeiten, und lediglich beschränkte Drehungen (beispielsweise 180°) zulassen.The drive can then be used relatively inexpensive motors. In this context, it is advantageous if such a drive has a stop. This stop can be part of the gearbox and can be adjusted if necessary during the manual setting of the roller position. However, this at least one stop can also be part of the drive as standard. So there are even drives that operate in operation between two stops, and only limited rotations (for example, 180 °) allow.

Weitere vorteilhafte Ausführungsformen und Ausführungsbeispiele der Erfindung ergeben sich aus den weiteren Ansprüchen, der gegenständlichen Beschreibung und den Zeichnungen.Further advantageous embodiments and embodiments of the invention will become apparent from the other claims, the physical description and the drawings.

Die einzelnen Figuren zeigen:

Fig. 1
Eine Seitenansicht eines Farbwerkes einer Flexodruckmaschine, welches mit einem Ausführungsbeispiel einer erfindungsgemäßen Vorrichtung ausgestattet ist.
Fig. 2
Eine Ansicht der Getriebekomponenten des Farbwerkes aus dem in Figur 1 durch den Pfeil 122 skizzierten Blickwinkel.
Fig. 3
Eine Ansicht der manuell betätigbaren Seite des Getriebes
Fig. 4
Den Schnitt A-B aus Figur 3
Fig. 5
Den Schnitt C-D aus Figur 3
The individual figures show:
Fig. 1
A side view of an inking unit of a flexographic printing press, which is equipped with an embodiment of a device according to the invention.
Fig. 2
A view of the transmission components of the inking unit from the in FIG. 1 by the arrow 122 sketched angle.
Fig. 3
A view of the manually operated side of the transmission
Fig. 4
The cut AB off FIG. 3
Fig. 5
The cut CD out FIG. 3

Figur 1 zeigt eine Seitenansicht eines Farbwerkes 100 einer erfindungsgemäßen Flexodruckmaschine 101. Das Farbwerk umfasst unter anderem den gegen die Gegendruckwalze 103 angestellten Formatzylinder 104 und die Rasterwalze 105, weiche gegen den Formatzylinder 104 angestellt ist. Die Bestandteile des Farbwerkes 100 ruhen auf der Konsole des Farbwerks 106. Direkt auf dieser Konsole ist die Linearführung 107 des Formatzylinders befestigt. Auf dieser Linearführung 107 gleiten Schlitten 108, auf welchen der Winkelbock 109 des Formatzylinders über die Linearführung 107 gleitet. Dieser Winkelbock trägt sowohl die Lagerung 110 des Formatzylinders 105 als auch die Linearführungen 111 der Rasterwalze, auf welchen wiederum die Schlitten 112 der Rasterwalze gleiten. Daher spricht man bei einer solchen Anordnung von einem Huckepackschlitten. FIG. 1 shows a side view of an inking unit 100 of a flexographic printing machine according to the invention 101. The inking unit includes, among other things employed against the counter-pressure roller 103 form cylinder 104 and the anilox roller 105, which is employed against the format cylinder 104. The components of the inking unit 100 rest on the console of the inking unit 106. Directly on this console, the linear guide 107 of the format cylinder is attached. On this linear guide 107 slide slide 108, on which the angle bracket 109 of the format cylinder slides over the linear guide 107. This angle bracket carries both the bearing 110 of the format cylinder 105 and the linear guides 111 of the anilox roller, on which in turn slide the carriage 112 of the anilox roller. Therefore, one speaks in such an arrangement of a piggyback.

Es ist auch gebräuchlich, die Schlitten der beiden Farbübertragungswalzen 104, 105 von Farbwerken von Flexodruckmaschinen mit Winkelböcken 109, 113 zu versehen, welche völlig unabhängig voneinander verfahren werden. Eine solche Vorrichtung wird zwar von den Figuren nicht gezeigt, ist jedoch gleichwohl erfindungsgemäß, wenn sie die kennzeichnenden Merkmale des Anspruchs 1 aufweist.It is also common to provide the carriages of the two ink transfer rollers 104, 105 of inking units of flexographic printing presses with angle blocks 109, 113, which are moved completely independently of each other. Although such a device is not shown by the figures, it nevertheless is according to the invention if it has the characterizing features of claim 1.

Auf den Schlitten 112 ist die Rasterwalze 105 in dem Bock 113 gelagert. Beide Schlitten 108, 112 werden von Spindeln 115, 116 auf den Linearführungen 107, 111 bewegt. Die Spindeln greifen durch das Getriebe 2 (Figur 2). An der Stirnseite des Getriebes ist das Handrad 117 zu erkennen. Die beiden Feststellschrauben 118 und 119 dienen zur Feststellung der Feineinstellungen 120, 121 für die beiden Spindeln, welche in Figur 2 zu sehen sind.On the carriage 112, the anilox roller 105 is mounted in the block 113. Both carriages 108, 112 are moved by spindles 115, 116 on the linear guides 107, 111. The spindles reach through the gearbox 2 ( FIG. 2 ). On the front side of the transmission, the handwheel 117 can be seen. The two locking screws 118 and 119 are used to determine the fine adjustments 120, 121 for the two spindles, which in FIG. 2 you can see.

Figur 2 ist eine Ansicht der Getriebekomponenten des Farbwerkes aus dem durch den Pfeil 122 skizzierten Blickwinkel. Die von der skizzierten Blickrichtung aus gesehen hinter den Getrieben 2 liegenden Elemente des Druckwerkes sind in dieser Figur nicht dargestellt. Figur 2 verdeutlicht, dass sowohl dem Winkelbock 109 des Formatzylinders 104 als auch dem Bock der Rasterwalze jeweils 2 Spindeln 115, 116 zugeordnet sind, welche von zwei Getrieben 2 bewegt werden. Diese beiden Getriebe 2 sind weitgehend spiegelbildlich zueinander angeordnet. Der Antrieb der zentralen Schraubenräder 4 beider Getriebe 2, welche durch eine Welle 123 verbunden sind, kann jedoch sowohl durch das Handrad 117 am linken Bildrand als auch durch den Antrieb 124 vorgenommen werden. Der Antrieb erfolgt bei dem gezeigten Ausführungsbeispiel pneumatisch, wobei der Antrieb über einen vorderen und einen hinteren Anschlag verfügt, welcher die Anschlagbewegung des Motors begrenzt. Der Antrieb ist über eine Kupplung 125 mit dem zentralen Schraubenrad 4 des rechten Getriebes 2 verbunden. Die Kupplung gewährleistet sowohl die Trennbarkeit des Antriebs vom Schraubenrad, als auch die manuelle Drehbarkeit desselben 4 bei stillstehendem Motor. Die Welle 123 ist durch eine Verkleidung abgedeckt. FIG. 2 is a view of the transmission components of the inking unit from the outlined by the arrow 122 angle. The lying behind the gears 2 elements of the printing unit seen from the outlined direction of view are not shown in this figure. FIG. 2 illustrates that both the angle bracket 109 of the format cylinder 104 and the block of the anilox roller 2 spindles 115, 116 are assigned, which are moved by two gears 2. These two gears 2 are arranged largely mirror images of each other. The drive of the central helical gears 4 of both gear 2, which are connected by a shaft 123, however, can be made both by the handwheel 117 on the left edge of the image and by the drive 124. The drive takes place pneumatically in the embodiment shown, wherein the drive has a front and a rear stop, which the stop movement limited by the motor. The drive is connected via a coupling 125 with the central helical gear 4 of the right transmission 2. The coupling ensures both the separability of the drive from the helical gear, as well as the manual rotation of the same 4 with the engine stopped. The shaft 123 is covered by a fairing.

Figur 3 zeigt noch einmal die manuell betätigbare Seite des Getriebes 2 und verdeutlicht die Lage des Schnittes A-B welcher in Figur 4 gezeigt ist. Figur 4 verdeutlicht ihrerseits die Lage des Schnitts C-D, welcher in Figur 5 dargestellt ist. Das Innenleben der Getriebe 2 ist vor dem Hintergrund der beiden letztgenannten Figuren zu verstehen. FIG. 3 again shows the manually operable side of the transmission 2 and illustrates the position of the section AB which in FIG. 4 is shown. FIG. 4 clarifies in turn the location of the section CD, which in FIG. 5 is shown. The inner workings of the gearbox 2 should be understood against the background of the last two figures.

Zunächst fällt auf, dass der Aufbau der Getriebeelemente, welche sich oberhalb beziehungsweise unterhalb des zentralen Schraubenrades 4 befinden, spiegelbildlich zueinander verhält. Die Einstellung beziehungsweise Betätigung der beiden Spindeln 115, 116 erfolgt also in gleicher Weise, so dass die Beschreibung des Getriebes an dieser Stelle nur für eine Hälfte erfolgen muss.First, it is striking that the structure of the transmission elements, which are located above or below the central helical gear 4, mirror images of each other. The setting or actuation of the two spindles 115, 116 thus takes place in the same way, so that the description of the transmission must be made at this point only for half.

Das zentrale Schraubenrad 4 wird von Wälzlagern 17 und Gleitlagern 27 gelagert. Es 4 steht in einem schneckenartigen Eingriff mit dem Zahnrad 3, welches mitgedreht wird, wenn das zentrale Schraubenrad 4 entweder durch das Handrad 117 oder den Antrieb 124 gedreht wird.The central helical gear 4 is supported by rolling bearings 17 and plain bearings 27. It is in a helical engagement with the gear 3, which is rotated when the central helical gear 4 is rotated by either the hand wheel 117 or the drive 124.

Hierbei ist die Drehachse des Zahnrades 3 orthogonal zu der Drehachse des zentralen Schraubenrades 4. Das Zahnrad 3 dreht bei seiner Rotation die Spindel 115 mit, da die Passfeder 25 diese beiden Getriebeelemente zu einer gemeinsamen Rotation um ihre gemeinsame Hauptträgheitsachse zwingt. Diese Rotation der Spindel 115 führt wiederum zu einer Translation derselben 115, da die Spindel in der in axialer Richtung festsitzenden Mutter 5 sitzt.Here, the axis of rotation of the gear 3 is orthogonal to the axis of rotation of the central helical gear 4. The gear 3 rotates in its rotation, the spindle 115, since the key 25 forces these two gear elements to a common rotation about their common principal axis of inertia. This rotation of the spindle 115 in turn leads to a translation of the same 115, since the spindle is seated in the nut 5 which is fixed in the axial direction.

Bei dem gezeigten Ausführungsbeispiel wird in der beschriebenen Weise die Grobeinstellung der Walzenpositionen vorgenommen, wobei beide Spindeln zugleich bewegt werden. Die Feineinstellung der Spindeln 115, 116 erfolgt jedoch individuell durch die manuelle Betätigung der Feineinstellungen 120, 121, welche die beiden Schnecken 6 antreiben. Jede dieser beiden Schnecken steht wiederum mit dem Schneckenrad 5 und der Mutter 7 im Eingriff. Daher führt eine Rotation der Schnecke 6 um ihre 6 Hauptträgheitsachse zu einer Drehung des Schneckenrades 5 und der Mutter 7. Die beiden letztgenannten Bauteile 5, 7 sind ohnedies durch den Zylinderstift 14 in ihrer Umfangsrichtung zwangsgeführt und bilden zusammen eine zweigeteilte Mutter, welche - wie bereits erwähnt - in der axialen Richtung der Spindel nicht nennenswert verschieblich ist, da sie von den Kugelrollenlager 9 und 10 an einer solchen Translation gehindert wird. Diese Kugelrollenlager 9, 10 lassen jedoch die Rotation der Mutter 5, 7 um ihre Hauptträgheitsachse zu.In the embodiment shown, the coarse adjustment of the roller positions is carried out in the manner described, wherein both spindles are moved simultaneously. However, the fine adjustment of the spindles 115, 116 is done individually by the manual operation of the fine adjustments 120, 121, which drive the two screws 6. Each of these two screws is in turn with the worm wheel 5 and the nut 7 in engagement. Therefore A rotation of the screw 6 about its 6 main axis of inertia to a rotation of the worm wheel 5 and the nut 7. The latter two components 5, 7 are positively constrained by the cylindrical pin 14 in its circumferential direction and together form a two-part nut, which - as already mentioned - Is not significantly displaced in the axial direction of the spindle, since it is prevented by the ball roller bearings 9 and 10 at such a translation. However, these ball roller bearings 9, 10 allow the rotation of the nut 5, 7 about their main axis of inertia.

Eine Drehung der ansonsten ortsfesten zweigeteilten Mutter 5, 7 führt daher zu einer Translation der jeweiligen Spindeln 115, 116, welche bei dieser Feineinstellung nicht rotieren, da ansonsten die gesamte Mimik der Grobeinstellung 4, 3, 25 mitrotieren müsste. Die beschriebene Translation der in Umfangsrichtung stillstehenden Spindeln bei ihrer individuell vornehmbaren Feineinstellung baut jedoch auch keine Kräfte zwischen der Mimik der Grobeinstellung 4, 3, 25 und der Mimik der Feineinstellung 6, 7, 5, 14 auf, da die Mimik der Grobeinstellung keinen Widerstand gegenüber der Translation bei der Feineinstellung aufbaut. Vielmehr gleiten die Spindeln 115, 116 an der Passfeder 25 entlang, welche in eine Nut in den Spindeln 115, 116 greift (Figur 4). Die Passfeder ist ihrerseits mit der Schraube 26 mit dem Zahnrad 3 verschraubt und ist damit gegenüber der Translation der Spindeln 115, 116 ebenfalls ortsfest.A rotation of the otherwise stationary two-part nut 5, 7 therefore leads to a translation of the respective spindles 115, 116, which do not rotate during this fine adjustment, otherwise the entire facial expressions of coarse adjustment 4, 3, 25 would have to rotate. However, the described translation of the circumferentially stationary spindles in their individual vornehmbaren fine adjustment also builds no forces between the facial expressions of the coarse adjustment 4, 3, 25 and the facial expressions of fine adjustment 6, 7, 5, 14, since the facial expressions of coarse adjustment no resistance builds up the translation during the fine adjustment. Rather, the spindles 115, 116 slide along the key 25, which engages in a groove in the spindles 115, 116 ( FIG. 4 ). The key is in turn screwed to the screw 26 with the gear 3 and is thus relative to the translation of the spindles 115, 116 also stationary.

Erwähnenswert ist noch die Funktion der Nadellager 15, welche in Figur 5 zu sehen sind und welche die Spindeln 115, 116 im Gehäuse 127 des Getriebes 2 beziehungsweise in der Gewindebuchsen 8 lagern und die Rotation der Spindeln zulassen. Die Gewindebuchsen 8 sind ihrerseits in einem Gewinde im Getriebegehäuse 127 um ihre Hauptträgheitsachse drehbar. Die angesprochene Drehung wird durchgeführt, indem Stifte eines geeigneten Drehwerkzeuges in die Sackbohrungen 114 der Gewindebuchse 8 eingeführt werden, so dass sich die Gewindebuchse 8 mit dem Werkzeug drehen lässt. Durch die Drehung der Gewindebuchse 8 lässt sich die Position derselben 8 in der axialen Richtung der Spindel von außen einstellen. Auf diese Weise ist es möglich, durch eine geringe Translation der Gewindebuchse 8 die Rückstellkraft der Tellerfeder 13 zu regulieren. Eine angemessene Rückstellkraft dieser Feder sorgt dafür, dass das gesamte Getriebe spielfrei arbeitet. Ein Nachstellen oder regulieren der Rückstellkraft der Feder kann von Zeit zu Zeit notwendig werden.Worth mentioning is still the function of the needle bearing 15, which in FIG. 5 can be seen and which support the spindles 115, 116 in the housing 127 of the transmission 2 and in the threaded bushes 8 and allow the rotation of the spindles. The threaded bushes 8 are in turn rotatable in a thread in the gear housing 127 about its main axis of inertia. The mentioned rotation is performed by inserting pins of a suitable turning tool into the blind holes 114 of the threaded bushing 8, so that the threaded bushing 8 can be rotated with the tool. By the rotation of the threaded bushing 8, the position of the same 8 in the axial direction of the spindle can be adjusted from the outside. In this way, it is possible by a small translation of the threaded bushing 8 the Restoring force of the diaphragm spring 13 to regulate. An adequate restoring force of this spring ensures that the entire gear works without play. An adjustment or regulation of the restoring force of the spring may be necessary from time to time.

Mit einer solchen Anstelleinrichtung kann die Anstellung der am Druckprozess beteiligten Walzen folgendermaßen vorgenommen werden:With such a setting device, the employment of the rollers involved in the printing process can be carried out as follows:

Zunächst wird mit dem Handrad 17 eine Grobeinstellung der Position der Rasterwalze 105 und des Formatzylinders 104 vorgenommen. DieseFirst, a coarse adjustment of the position of the anilox roller 105 and the format cylinder 104 is made with the handwheel 17. These

Grobeinstellung kann durch die Betätigung der Feineinstellungen 120, 121 weiter verbessert werden. Die Feineinstellung erfolgt individuell für die Rasterwalze 104 und den Formatzylinder 105.Coarse adjustment can be further improved by the operation of the fine adjustments 120, 121. The fine adjustment is done individually for the anilox roller 104 and the format cylinder 105.

In der eingestellten Position wird der Druckprozess aufgenommen. Wenn nach einem Riss der Druckbahn 128 die Notwendigkeit besteht, die Rasterwalze und den Formatzylinder von der Gegendruckwalze abzufahren, wird das dazu nötige Drehmoment von dem Antrieb 124 aufgebracht und über die Kupplung 125 auf das zentrale Schraubenrad 4 übertragen. Der Antrieb 124 verfügt gleich über zwei integrierte und daher nicht dargestellte Anschläge, die seine Drehbewegung begrenzen. So dreht der Antrieb 124 das zentrale Schraubenrad 4 um einen festen Winkel, wobei der Rotor des Antriebs von dem vorderen zum hinteren Anschlag rotiert. Auf diese Weise wird die Abstellbewegung der Rasterwalze und des Formatzylinders herbeigeführt. Nach einem Bahnwechsel wird der Antrieb erneut in umgekehrter Richtung betätigt, wobei der Rotor des Antriebs wieder den vorderen Anschlag erreicht. Auf diese Weise erreichen die Rasterwalze 105 und der Formatzylinder 104 wieder die ursprünglich manuell eingestellte Druckposition. Bezugszeichenliste 1 Gewindespindel 2 Getriebe 3 Zahnrad 4 Schraubenrad 5 Schneckenrad 6 Schnecke 7 Mutter 8 Gewindebuchse 9 Kugelrollenlager 10 Kugelrollenlager 11 Flanschlager 12 Passscheibe 13 Tellerfeder 14 Zylinderstift 15 Nadellager 16 Flanschlager 17 Wälzlager 18 Flanschlager 19 Zyl. Schraube 20 Passscheibe 21 Seegerring 22 Zyl. Schraube 23 Sicherungsblech 24 Wellenmutter 25 Passfeder 26 Senkschraube 27 Gleitlag-Sinterm. 28 Sprengring 29 Sprengring Bezugszeichenliste 100 Farbwerk 101 Flexodruckmaschine 102 103 Gegendruckwalze 104 Formatzylinder 105 Rasterwalze 106 Konsole des Farbwerkes 107 Linearführung 108 Schlitten des Formatzylinders 109 Winkelbock des Formatzylinders 110 Lagerung des Formatzylinders 111 Linearführung der Rasterwalze 112 Schlitten der Rasterwalze 113 Bock der Rasterwalze 114 Sackbohrungen 115 Spindel des Formatzylinders 116 Spindel der Rasterwalze 117 Handrad 118 Feststellschraube der Feineinstellung 119 Feststellschraube der Feineinstellung 120 Feineinstellung der Spindel der Rasterwalze 121 Feineinstellung der Spindel des Formatzylinders 122 Pfeil 123 Welle zwischen den Schraubenrädern 124 Antrieb 125 Kupplung 126 Verkleidung 127 Getriebegehäuse 128 Druckbahn The printing process is recorded in the set position. If after a crack of the printing web 128, there is a need to start the anilox roller and the format cylinder from the counter-pressure roller, the torque required for this is applied by the drive 124 and transmitted via the clutch 125 to the central helical gear 4. The drive 124 has the same two integrated and therefore not shown attacks that limit its rotational movement. Thus, the drive 124 rotates the central helical gear 4 at a fixed angle, with the rotor of the drive rotating from the front to the rear stop. In this way, the Abstellbewegung the anilox roller and the format cylinder is brought about. After a lane change, the drive is again operated in the reverse direction, the rotor of the drive again reaches the front stop. In this way, the anilox roller 105 and the format cylinder 104 again reach the originally manually set printing position. LIST OF REFERENCE NUMBERS 1 screw 2 transmission 3 gear 4 helical gear 5 worm 6 slug 7 mother 8th threaded bushing 9 Ball Roller Bearings 10 Ball Roller Bearings 11 Bearing 12 shim 13 Belleville spring 14 straight pin 15 needle roller bearings 16 Bearing 17 roller bearing 18 Bearing 19 Cyl. screw 20 shim 21 Seeger ring 22 Cyl. screw 23 Locking plate 24 shaft nut 25 Adjusting spring 26 Senkschraube 27 Gleitlag-SinTerm. 28 snap ring 29 snap ring LIST OF REFERENCE NUMBERS 100 inking 101 flexographic printing 102 103 Backing roll 104 format cylinder 105 anilox roller 106 Console of the inking unit 107 linear guide 108 Sledge of the format cylinder 109 Winkelbock of the format cylinder 110 Storage of the format cylinder 111 Linear guide of the anilox roller 112 Scoop of anilox roller 113 Bock of anilox roller 114 blind holes 115 Spindle of the format cylinder 116 Spindle of anilox roller 117 handwheel 118 Locking screw for fine adjustment 119 Locking screw for fine adjustment 120 Fine adjustment of the spindle of the anilox roller 121 Fine adjustment of the spindle of the format cylinder 122 arrow 123 Shaft between the helical gears 124 drive 125 clutch 126 paneling 127 gearbox 128 print web

Claims (7)

  1. Flexographic printing maschine (101),
    which is equipped with at least one inking unit (100),
    in which (100) the setting of the printing position of the format cylinder (104) and the anilox roller (105) can be achieved by adjusting the format cylinder (104) and the impression roller (103) and the anilox roller (105) up to the format cylinder 8104) with adjusting equipment (2, 115, 116, 108, 112, 107, 111),
    the format cylinder and the anilox roller each are put at both ends in format cylinder bearings (110, 113) which (110, 113) can be operated by means of a spindle (115, 116), whereby
    the printing position of the format cylinder (104) and/or the anilox roller (105) is adjusted by manually operating this adjustment equipment (2, 115, 116, 108, 112, 107, 111) and whereby the adjustment equipment comprises a rough setting (4, 3, 25) with a shaft (123) by means of which all spindles (115, 116) can be charged with a force which leads to a translation of the spindles (115, 116),
    whereby the adjustment equipment comprises precision adjustment (120, 121, 6, 5) by means of which each spindle (115, 116) can be charged with a force individually which starts the translatory movement of each spindle and
    whereby the removal of the format cylinder (104) and/or the anilox roller (105) can be achieved from the previously manually set position and the readjustment of these rollers (104, 105) into the same position using at least one drive (124) acting on the shaft (123).
  2. Flexographic printing machine (101) according to Claim 1
    characterized in that
    at least one drive (124) works against at least one stop a least when readjusting, which stop ends the readjustment movement if the position of the format cylinder (104) and the anilox roller (105) is manually positioned up to the impression roller (103).
  3. Flexographic printing machine (101) according to one of the preceding claims
    characterized in that
    the drive (124) can be separated from the manual operation tools (117, 120, 121) via a coupling (125).
  4. Flexographic printing machine according to Claims 1, 2 or 3,
    characterized in that
    the drive (124) is a pneumatic drive (124).
  5. Flexographic printing machine (101) according to one of the preceding claims
    characterized in that
    the removal of the format cylinder (104) and/or the anilox roller (105) can be achieved from the previously manually set position and the readjustment of these rollers (104, 105) into the same position can be done jointly.
  6. Flexographic printing machine (101) according to one of the preceding claims
    characterized in that
    a central helical gear is provided which is in connection with the drive (124) as well as with manual operation tools (117) and which transfers the force required for the joined adjustment of the roller position respectively the required torque.
  7. Method for setting the printing position of the format cylinder (104) and the anilox roller (105) of an inking unit (100) of a flexographic printing machine (101) by adjusting the format cylinder (104) to the impression roller (103) and the anilox roller (105) to the format cylinder (104) using adjustment equipment (2, 115, 116, 108, 112, 107, 111),
    whereby the format cylinder and the anilox roller each are put at both ends in format cylinder bearings (110, 113) which (110, 113) can be operated by means of a spindle (115, 116), whereby
    the printing position of the format cylinder (104) and/or the anilox roller (105) is adjusted by manually operating this adjustment equipment (2, 115, 116, 108, 112, 107, 111) and whereby the adjustment equipment comprises a rough setting (4, 3, 25) with a shaft (123) by means of which all spindles (115, 116) can be charged with a force which leads to a translation of the spindles (115, 116),
    whereby the adjustment equipment comprises precision adjustment (120, 121) by means of which each spindle (115, 116) can be charged with a force individually which starts the translatory movement of each spindle and
    whereby the removal of the format cylinder (104) and/or the anilox roller (105) can be achieved from the previously manually set position and the readjustment of these rollers (104, 105) into the same position using at least one drive (124).
EP02016586A 2001-11-09 2002-07-25 Flexographic printing machine with alternative manual and automatic applicable ink transfer rollers Expired - Lifetime EP1310360B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10155256A DE10155256B4 (en) 2001-11-09 2001-11-09 Flexographic printing machine with alternatively manually and automatically adjustable color transfer rollers
DE10155256 2001-11-09

Publications (3)

Publication Number Publication Date
EP1310360A2 EP1310360A2 (en) 2003-05-14
EP1310360A3 EP1310360A3 (en) 2004-08-11
EP1310360B1 true EP1310360B1 (en) 2008-04-23

Family

ID=7705309

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02016586A Expired - Lifetime EP1310360B1 (en) 2001-11-09 2002-07-25 Flexographic printing machine with alternative manual and automatic applicable ink transfer rollers

Country Status (5)

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US (1) US6789477B2 (en)
EP (1) EP1310360B1 (en)
AT (1) ATE393022T1 (en)
DE (2) DE10155256B4 (en)
ES (1) ES2302508T3 (en)

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EP2581226A1 (en) 2011-10-14 2013-04-17 Windmöller & Hölscher KG Printing press and method for engaging at least one colour deck cylinder

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DE102007009466B4 (en) * 2007-02-27 2009-07-02 Fritz Achelpohl Method for operating a flexographic printing machine and flexographic printing machine
US8720335B2 (en) * 2007-04-24 2014-05-13 Probity Engineering, Llc Offset hand proofer tool
WO2010014619A2 (en) 2008-07-28 2010-02-04 Integrity Engineering, Inc. Improvements to flexographic proofing tools and methods
DE102009028214B4 (en) * 2009-08-04 2016-06-02 Kba-Meprint Ag Positioning device of two cylinders and a method for positioning of cylinders
DE102012000752B4 (en) * 2012-01-18 2014-12-24 Servotec GmbH Herbert Bauch Quick adjustment of printing unit components with fine adjustment and play release
US9683607B1 (en) 2016-05-12 2017-06-20 Steven Wayne Francis Interlocking drive disc with rolling pin assembly
CN105807500B (en) * 2016-05-31 2019-03-12 京东方科技集团股份有限公司 Transfer device and transfer method
CN109177449B (en) * 2018-10-18 2023-09-29 广东欧格精机科技有限公司 Plate roller clutch pressing mechanism of flexographic printing machine
CN110143041B (en) * 2019-05-20 2020-11-17 宁波市莫亚工艺品工贸有限公司 Satellite type non-setting adhesive rotary press's deviation correcting device
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DE102011084544A1 (en) 2011-10-14 2013-04-18 Windmöller & Hölscher Kg Printing machine and method for adjusting at least one inking cylinder
DE102011084544B4 (en) * 2011-10-14 2017-12-14 Windmöller & Hölscher Kg flexographic printing

Also Published As

Publication number Publication date
DE10155256B4 (en) 2013-08-22
EP1310360A2 (en) 2003-05-14
DE10155256A1 (en) 2003-05-28
EP1310360A3 (en) 2004-08-11
US6789477B2 (en) 2004-09-14
DE50212138D1 (en) 2008-06-05
US20030089255A1 (en) 2003-05-15
ES2302508T3 (en) 2008-07-16
ATE393022T1 (en) 2008-05-15

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