DE102016206840B4 - Printing unit of a printing machine that prints a sheet-shaped substrate - Google Patents

Abstract

Printing unit (02) of a printing machine (B) on at least one printing unit (03) by a screen printing process printing machine with a form of a screen printing cylinder (04) form cylinder (04), with a screen printing cylinder (04) forming an abutment and holding means (32 ) for holding the sheet-shaped substrate (02) comprising impression cylinder (06) and with a squeegee device (51), comprising - designed as a round screen (43) screen printing form (43), - a squeegee (44) for a Anstelllage ("AN ") With a doctor edge against the screen printing plate (43) can be adjusted, - an on-and-Abstellbewegung between the Anstelllage (" ON ") of the doctor blade (44) and a storage position (" AB ") enabling storage facility (53), a squeegee (44) correlates to a machine or printing material phase position (Φ) on the screen printing form (43) on and off drive means (74), wherein in addition to the arrival and Abstellbewegung enabling bearings the squeegee (44) medium or directly supporting bearing means (122; 123) are provided, via which the doctor blade (44) is mounted so relatively movable to the round screen (43) in the machine, so that the position of the contact line between blade edge and screen printing form (43) is variable in Rundsiebinnern in or opposite to the operating direction of rotation, characterized in that the up and down movement between the Anstelllage ("ON") of the doctor blade (44) and a storage position ("AB") enabling storage device (53) together with the arrival and Abstellbewegung effecting drive means (74) on a Rack wall (59) is mounted, which relative to a screen printing cylinder (04) medium or directly overlapping frame wall (93) is mounted relatively movable.

Description

The invention relates to a printing unit of a sheet-like substrate printing printing machine according to claim 1.

The WO 2007/119167 A2 discloses a machine for multi-stage processing and / or processing of sheet-shaped substrates with a screen and a squeegee comprehensive screen printing and multiple upstream offset printing units. In a first embodiment, the round screen is deformed by the doctor in the direction of the counter-pressure cylinder elastically and thus employed. When a counter-pressure cylinder pit passes through the nip point, the squeegee is moved radially inward so that the deformation is canceled out when the squeegee contact continues to exist and the round wire lifts off from the impression cylinder. In a second variant, the round screen with doctor blade is lifted altogether during Nippdurchgang the pit.

By the EP 1 820 646 A2 a printing machine is known, which in one embodiment comprises a screen printing machine comprising a round screen and a squeegee, as well as a plurality of offset printing units and a dryer. In order to prevent the collapse of a counter-pressure cylinder pit a collapse of the round screen, a protruding in this section over the remaining surface area layer is applied to the round screen on the corresponding peripheral portion.

Also the EP 1 717 028 A2 discloses a printing machine having a screen printing unit and offset printing units, wherein, however, the screen printing cylinder carries a screen supporting the protection on a circumferential section corresponding to the impression cylinder pit.

The EP 0 723 864 A1 discloses a rotary screen printing unit with a screen printing form and a doctor blade, wherein the doctor blade is turned off by a cam control during the passage of a counter-pressure cylinder pit through the nip and subsequently turned on again until the next passage.

Also in the EP 1 246 726 B1 a squeegee is turned on and off via a cam to the screen form, which should alternatively be able to pneumatically, electronically or hydraulically. The doctor blade is movable in a purely translatory manner on a doctor blade holder arranged rigidly on the machine frame. In addition to this, in the case of wear, a linear readjustment of the doctor blade can take place.

By the EP 1 724 113 B1 a storage device for a round screen of a Siedruckwerks is known, wherein the round screen is mounted on both sides in independently axially movable brackets. Via eccentric bearings on both sides, a center distance to an impression cylinder can be adjusted and, via an additional eccentric bearing on one of the sides, an axial inclination can also be varied. About an axialrelativbewegliche helical toothing in the drive train is a circumferential position relative to the impression cylinder variable. An extending inside the screen cylinder and a doctor-bearing blade holder pneumatically diametrically to the frame movable.

In the EP 2 848 406 A2 is a doctor blade receiving a blade carrier for adjusting a doctor angle by a motor provided for this purpose pivotable. The doctor blade plates supporting the doctor carrier are in turn pivotally mounted on a frame part for engagement and disengagement of the doctor blade and can be pivoted by a pressure medium cylinder. The in-set position center distance to the impression cylinder is hereby adjustable by a screw acting as a stop. By means of a setting eccentric, a contact line of the doctor blade in the tang between the screen printing cylinder and the impression cylinder is also possible. Finally, the screen printing device with doctor carrier and the Rundsieb overlapping subframe is pivotally mounted on a machine frame and a total of on and off by a fluid-operated cylinder.

The DE 75 02 041 U and the EP 0 071 014 A1 disclose screen printing units with a squeegee device.

The AT 343 075 B relates to a squeegee device for a cylinder printing machine with a doctor blade, which is adjustable by pivoting about a coincident with the contact line pivot axis in the squeegee angle, and by pressing a squeegee supporting the inflatable body from the inside against the pressure cylinder is adjustable.

The DE 37 34 747 A1 relates to a doctor device with a preferably magnetically pressed to a magnetic bar doctor roller for applying a substrate to a web. In order to counteract too much emigration when adjusting the squeegee angle by vertically moving the hinged support, in addition to the vertical movement, a pivoting or moving in the horizontal direction may be provided.

Also the DE 1 652 477 A relates to a doctor device for web-shaped material, wherein the doctor blade is adjustable in its squeegee angle. An adjustment of the squeegee for web-like Gurtes vertical direction takes place in frontal Geradführungen, where the adjustment and the pressing of the doctor blade to the material is effected by a magnetic bar which lies under a blanket and forms an abutment against the doctor blade.

The invention has for its object to provide a printing unit of a sheet-shaped substrate printing press.

The object is achieved by the features of claim 1.

The advantages that can be achieved with the invention are, in particular, that a machine or printing stage which operates in a particularly variable manner with regard to its range of application is provided, if appropriate, inter alia, by a printing-through method.

In a special embodiment as a pure further processing and / or finishing stage, a high quality can be ensured by means of a through-printing printing stage-preferably a particularly variable design-without this being done at the expense of the overall productivity in the printing works.

Of very particular advantage of variable to be used printing stage, especially screen printing stage, axes of movement of actuating movements of a doctor blade are located straight or largely in their theoretical direction of action. Regardless of this, or preferably in addition thereto, it is particularly advantageous to continuously perform adjusting movements in at least more than two stages, in particular at least in the operating range provided.

In a particularly advantageous embodiment of a squeegee and the printing form comprehensive printing device, this is not only in print-on and print-Ab, but also to spend in a maintenance and / or set-up.

Advantageously, adjusting movements of the printing device are realized via as few movement axes as possible.

It is also of particular advantage that adjustments to variable substrate thicknesses and / or to variable screen thicknesses and / or to varying printing format lengths during setup can be carried out particularly simply and quickly. This applies in the same way to changes in parameters that are required during the printing process due to changed conditions and / or pressure quality reasons.

An especially advantageous printing unit of a printing machine which prints an arcuate printing material on at least one printing location by a screen printing method comprises a forme cylinder, a screen cylinder an abutment forming and retaining means for holding the sheet-shaped printing material comprising counter-pressure cylinder and a squeegee device comprising a trained as a screen screen form, a squeegee, which can be adjusted for a Anstelllage with a doctor edge against the screen printing form, an on-and-Abstellbewegung between the Anstelllage the squeegee and a storage position enabling storage facility and a squeegee correlates to a machine or printing material on the screen form and shutdown drive device. In addition to the arrival and Abstellbewegung enabling storage the doctor blade medium or immediately supporting bearing means are provided, via which the doctor is mounted so relatively movable to the round screen in the machine, so that the position of the contact line between doctor blade edge and screen printing in Rundsiebinnern in or against the Operation present direction of rotation is variable.

In a particularly advantageous development of the printing unit, a printing machine which prints a printing material on at least one printing location by a screen printing method comprises a printing cylinder in the form of a screen printing cylinder, an impression cylinder forming an abutment and a squeegee device. The latter comprises a screen printing form, a squeegee against the screen printing form in an Anstelllage can be adjusted, in the region of both faces of the screen printing cylinder, the squeegee medium or directly overlapping and a stop and Abstellbewegung between the Anstelllage the squeegee and a storage position enabling storage device, a drive device , by which the squeegee to the screen printing form on and off this abstellt, and one of the drive means comprising drive means by which the arrival and Abstellbewegung of the squeegee cyclically and synchronously mechanically independent of a rotary drive of the screen printing form and of a substrate conveying means to a machine or printing material phase position is effected or is effected. Furthermore, the printing unit comprises a control device connected to the drive means for its control and the squeegee with varying phase lengths and / or positions varying depending on the printing material format and / or the printed image.

To operate the printing unit or the squeegee device in a print substrate by a screen printing process printing press, a squeegee against the screen form in an Anstelllage is adjustable, with an on and off the squeegee to the screen printing form via a drive device cyclically and synchronized to a Machine and / or printing material phase position is carried out, and wherein the cyclic switching on and off of the doctor blade is carried out by a specially provided for this purpose drive means mechanically independent of a rotary drive of the screen printing form and of a printing medium conveying means. For the operation of the printing press with mutually different Bedruckstofflängen and / or print image lengths on and off the doctor takes place with respect to a same cycle length different phase length for a Anstelllage phase

In a particularly advantageous embodiment of the printing unit of a printing material on at least one printing point by a screen printing process printing press includes this z. B. a screen printing form, a squeegee, which is employed in a Anstelllage with a doctor blade edge against the screen printing form and / or against the screen printing form can be adjusted, and an on-and-off between the Anstelllage the squeegee and a storage position enabling storage facility which z. B. medium or directly on a screen printing medium or directly supporting frame is arranged. Further, it comprises a drive device, by means of which the squeegee on the Siebdruckform on and off this abstellt, and one of the drive means encompassed drive means by which the arrival and Abstellbewegung the squeegee mechanically independent of a rotary drive of the screen form and of a the substrate promoting promotional is effected. The drive means causing the on and Abstellbewegung is controlled by the drive means controlling means reproducible in at least one Abstelllage causing an operating condition and at least two other different operating conditions defined, each taking a Anstelllage with mutually different radial relative positions and / or Anstellkräften between squeegee and screen printing form result.

In a particularly advantageous development for the operation of the printing unit of an arcuate substrate by a screen printing process printing press on and off a squeegee to a supported by a screen printing cylinder screen printing form via a drive means by a specially provided for this, mechanically from the rotary drive of the screen cylinder and independent of this cooperating impression cylinder drive means, wherein for hiring the squeegee by the activation and Abstellbewegung the blade causing drive means via a drive means controlling control means from a storage position in a variable with respect to the strength of Anstellens Anstelllage, in particular in a defined one of several By varying definable Anstelllagen spent.

An advantageous machine for multi-stage processing and / or processing of sheet-shaped substrates comprises at least one z. B. o. G. Printing unit, which is designed as a printing stage of the first type as working according to a rotary printing process. The sheet-like substrate is on a Bedruckstoffweg by the machine between a substrate template and a display through the working according to the rotary printing through printing stage feasible and inline printable. The printing stage which operates according to the rotary screen printing method comprises a screen-printing cylinder and a squeegee which can be positioned inside a screen area at or adjacent to the nip point to form an impression cylinder from inside a screen printing form and a bearing device which supports the squeegee directly or indirectly, at least one further layer in the printing material path , is provided in type and / or type of the first processing stage different further bow-processing and / or processing processing stage. As a further processing stage, the printing image is provided in the printing material path by a printing method which differs from the screen printing method in direct printing on the printing substrate which transfers the printing material. In a preferred development, the printing stage, which operates according to the rotary screen printing method, comprises a drive means driving the screen printing cylinder mechanically independently of the rotary drive of the impression cylinder and / or a drive device causing the blade to come on and off with one of the rotary drive of the screen printing and counterpressure cylinders mechanically independent drive means.

In an advantageous process for the production of printed products from sheet-shaped substrates, printing material sheets on their way through the machine to the output in at least one operating according to the rotary screen printing process printing step by a rotary screen printing method and before or subsequently by at least one further printing stage by a different from the screen printing process printing method printed, wherein the printing material in the working according to the rotary screen printing printing stage performed by a Nippstelle between a screen printing cylinder and an impression cylinder and a squeegee in the screen cylinder in a section area at or adjacent to Nippstelle synchronized to a machine and / or printing material at a position supported by the screen printing cylinder Printing form is switched on and off. The printing material sheets are printed in the machine by at least one further printing stage according to a different from the screen printing direct printing method.

In a further development for the production of printed products from the sheet-shaped substrates already printed after a planographic printing substrate on the input side of the machine supplied and on their way through the machine to the output at least simply after a printing process and additionally at least one more time after one of the Durchdruck- and imprinted by the planographic printing different printing process and / or superficially cleaned by a pre-arranged by the printing process conditioning.

In a system to be preferred for the production of printed products from sheet-shaped substrates, such a machine is provided as a further processing and / or finishing machine and in addition to this one with respect to the printing material decoupled and independently operable printing machine with one or more operating according to a planographic printing stages.

Fundamentally independent of, but particularly advantageous in connection with an embodiment of an aforementioned printing unit, machine and / or system, the bearing device comprises bearing means, by which at least within a Anstelllage and a Abstelllage comprehensive positioning range the squeegee along straight and / or in the unloaded Touch condition, d. H. in the state of first contact of the screen printing plate without additionally impressed doctor blade pressing, extending and extending perpendicular to the doctor edge longitudinal extent of a doctor blade covered by the doctor blade takes place.

Basically, regardless of, but particularly advantageous in connection with a og, preferable embodiment of the machine and / or plant and / or one or more of the two mentioned preferred embodiments of the two mentioned preferred embodiment of a squeegee device for a substrate at least one pressure point after a screen printing process printing press includes this z. B. eine Siebdruckform, a squeegee, which is employed in a Anstelllage with a doctor edge against the screen printing form and / or against the screen form can be adjusted, and a storage device with a squeegee medium or directly supporting storage means, which is parallel to a doctor blade edge pivot axis pivotally mounted on a - in particular the screen form medium or directly supporting - frame is arranged and causes a pivoting of a squeegee angle formed between a doctor blade of the doctor blade and the screen printing form during pivoting. The pivot axis of the bearing means coincides in a preferred embodiment with a theoretical contact line, which by a in the unloaded contact state of the doctor, d. H. in the state of the first contact of the screen printing form by the doctor blade edge without additional impressed doctor blade pressing, extending line is given.

Embodiments of the invention are illustrated in the drawings and will be described in more detail below.

• 1 eine schematische Darstellung für die Ausführung einer einen flächigen Bedruckstoff be- und/oder verarbeitenden Maschine mit wenigstens einem Siebdruckaggregat;
• 2 schematische Darstellungen für die vorteilhafte Ausführung einer als Weiterverarbeitungsmaschine ausgeführten Maschine mit einem Siebdruckaggregat und a) einem nach einem rotativen Tief- oder Hochdruckverfahren arbeitenden Druckaggregat sowie b) einem diesem zusätzlich vorgeordneten Konditionieraggregat;
• 3 eine schematische Schnittansicht einer mit einem Gegendruckzylinder zusammen wirkenden Siebdruckform;
• 4 eine Schrägansicht einer die Rakel an einem Gestell lagernden Lagereinrichtung;
• 5 eine schematische Darstellung der Rakel bzw. deren Rakelblattes in einem An-Abstellzyklus;
• 6 eine schematische Darstellung eines An-Abstellzyklus in Abhängigkeit von der Bedruckstofflänge;
• 7 eine schematische Darstellung eines An-Abstellzyklus in Abhängigkeit von der Druckbildlänge;
• 8 eine schematische Darstellung eines An-Abstellzyklus in Abhängigkeit von der Bedruckstofflänge;
• 9 eine perspektivische Schrägansicht einer als Siebdruckwerk ausgeführten Bedruckstufe;
• 10 eine schematische Darstellung unterschiedlicher Relativlagen zwischen Drucksieb bzw. Siebdruckzylinder und Gegendruckzylinder;
• 11 eine Schnittansicht einer ersten Ausführung einer vom Siebdruckwerk umfassten Siebdruckeinrichtung;
• 12 eine Schnittansicht einer zweiten Ausführung einer vom Siebdruckwerk umfassten Siebdruckeinrichtung;
• 13 ein Längsschnitt durch eine vom Siebdruckwerk umfassten Siebdruckeinrichtung;
• 14 ein erstes Ausführungsbeispiel für eine in der Lage der Berührlinie variierbare Rakel;
• 15 ein erstes Ausführungsbeispiel für eine in der Lage der Berührlinie variierbare Rakel.

Show it:

• 1 a schematic representation of the execution of a two-dimensional printing and / or processing machine with at least one screen printing unit;
• 2 schematic representations for the advantageous embodiment of a running machine as a further processing machine with a screen printing unit and a) a working according to a rotary deep or high pressure process printing unit and b) a this additionally upstream Konditionieraggregat;
• 3 a schematic sectional view of a cooperating with a counter-pressure cylinder screen printing form;
• 4 an oblique view of a squeegee mounted on a rack storage facility;
• 5 a schematic representation of the doctor blade or its doctor blade in an on-Abstellzyklus;
• 6 a schematic representation of an on-off cycle in dependence on the printing material length;
• 7 a schematic representation of an on-Abstellzyklus depending on the print image length;
• 8th a schematic representation of an on-off cycle in dependence on the printing material length;
• 9 an oblique perspective view of a designed as a screen printing stage;
• 10 a schematic representation of different relative positions between printing screen or screen printing cylinder and impression cylinder;
• 11 a sectional view of a first embodiment of a Siebdruckwerk embraced screen printing device;
• 12 a sectional view of a second embodiment of a Siebdruckwerk embraced screen printing device;
• 13 a longitudinal section through a covered by the screen printing screen printing device;
• 14 a first embodiment of a variable in the position of the contact line squeegee;
• 15 A first embodiment of a variable in the position of the contact line squeegee.

One a flat printing material B as a substrate B processing and / or processing machine 01 comprises at least one fed substrate B after a rotary printing process, in particular screen printing process, printing processing stage 02 , in particular in the manner of a printing stage 02 , This is for example by a the substrate B on at least one of its pages in at least one printing spot 03 at least a simple printing unit 02 given. The printing unit 02 is especially as a rotary printing unit 02 , in particular as a rotary screen printing unit 02 executed, the pressure point 03 between one as a form cylinder 04 , in particular screen printing cylinder 04 , trained printing cylinder 04 and one as an impression cylinder 06 effective printing cylinder 06 is formed. Basically, the editing level 02 or the printing unit 02 several form cylinders 03 or pressure points 03 include, wherein the form cylinder 04 then z. B. with different impression cylinders or advantageously with a same impression cylinder 06 work together.

Although the machine 01 with regard to the processing of the printing material B on this one, after the screen printing process working stage 02 may be limited, are in a preferred embodiment of this processing stage 02 however, in the printing material path of the machine 01 one or more additional processing steps 07 ; 08 ; 09 ; 11 the upstream and / or downstream of the printing stage operating by the through-printing method, by which or which of the printing substrates printed or to be printed by the through-printing method B in the same machine 01 Inline additionally one or more times by or processed in a different pressure through printing method is or can be. The machine can do that 01 in the case of several other processing steps different from the through-printing process 07 ; 08 ; 09 ; 11 processing stages 07 ; 08 ; 09 ; 11 different types and / or processing levels 07 ; 08 ; 09 ; 11 include a same kind, z. B. in the manner of a printing stage and / or in the manner of a conditioning stage. In the case of further processing stages 07 ; 08 ; 09 ; 11 of a same type may be of different types and / or types, e.g. B. printing levels of the same or printing levels of different printing methods (eg, planographic printing, high pressure, gravure, digital printing or possibly other) or z. B. conditioning of the same type of treatment or different types of treatment (eg., Drying, moistening, cleaning or possibly other) belong.

In particular, by their execution as operating according to the rotary screen printing processing stage 02 or as a rotary screen printing unit 02 this or this, while maintaining a fluid material movement in a particularly advantageous manner in a multi-stage loading and / or processing process, for. B. a multi-stage process for finishing, integrable.

In a first embodiment, this can be the integration into a plurality as printing units 02 ; 07 ; 09 ; 09 ' trained processing levels 02 ; 07 ; 09 ; 09 ' comprehensive machine 01 which downstream and / or preferably upstream of the printing or screen printing unit 02 one or more further pressure stages operating according to a different printing method 07 ; 09 ; 09 ' , z. B. one or more after the offset printing process and / or one or more after a gravure or preferably high-pressure process and / or one or more after a druckformlosen or digital printing process, in particular inkjet printing process, working printing stages 07 ; 09 ; 09 ' , (for example, see 1 ).

In a respect to the quality and efficiency to be preferred embodiment of the machine 01 is the processing stage operating on the screen printing process 02 or the rotary screen printing unit 03 - Regarding the printing material flow - without inline coupling to one or more after a planographic printing process, especially after the offset process, working processing stages 07 intended. Preferably, the at least one screen printing stage 02 comprehensive machine 01 thus as a single or preferably multi-stage processing machine 01 , in particular finishing machine, formed, which input side in z. B. a temporally upstream and independent production step at least simply printed, in particular at least one or more times by the offset printed substrate B is supplied.

In other words, a preferred as processing or finishing machine 01 trained machine 01 z. B. at least two of the further processing and / or refinement of previously printed in a separate, with respect to the material flow decoupled process printed substrate B serving processing stages 08 ; 09 ; on. In particular, the input material supplied on the input side B For example, at least one side of a printed image applied by offset printing on. The further processing or in particular finishing machine 01 is then limited to a further processing and / or finishing and is preferably formed without a planographic printing process, in particular without working after the offset printing process stages. This machine may be preferred 01 in addition to an operating according to the Durchdruckverfahren printing stage 02 a - in particular different from a flat and / or offset printing stage - working after a gravure or gravure printing process and / or a printing image in direct printing on the substrate B transferring printing stage 09 include. Alternatively or additionally, it can also include a printing stage operating according to a digital printing method as a further printing stage, which likewise can serve for subsequent finishing and / or individualization and / or regularly does not reach the production speed achievable by planographic printing.

A plant for the production of printed products from -. B. still unprocessed or already pre-processed - printing materials B can then, for example, both one or more such processing or in particular finishing machine 01 and at least one z. B. faster-moving, not shown here flat printing machine, in particular offset printing machine, with one or more preferably after a planographic printing process, for. B. the offset method working printing stages, in particular printing units include. While these may in principle comprise one or more additional printing stages operating in their particular inline to continuous printing material path from their original to the delivery, they preferably do not use a processing stage which operates according to a throughprint process, in particular a screen printing process. The printed products produced may be the end products themselves or intermediates.

A as a finishing machine 01 executed machine 01 includes, for example, at least one of the screen printing stage 02 in the printing material inline nach- or preferably upstream, after a rotary gravure or preferably high-pressure process, in particular by the flexographic printing process and / or the printed image in direct printing on the substrate B transferring processing stage 09 which, for example, as a gravure printing or preferably as a high-pressure, in particular as a flexographic printing stage 09 or printing unit 09 is executed (eg 1 . 2a and 2 B) , In addition to this, or possibly instead, as a further pressure stage 09 ' an operating according to a druckformlosen or digital printing process printing unit 09 ' the screen printing stage 02 nach- or preferably upstream.

In a particularly advantageous development of the through-pressure stage 02 and this exactly or at least one further printing stage 09 ; 09 ' one of the conditioning of the previously printed substrate B , in particular a processing stage serving for powdering 08 , such as a z. B. a Kalandrierwerk comprehensive conditioning 08 , as a conditioning stage 08 be provided. The latter can also be used as a purification stage 08 denotes and / or a suction and / or blowing and / or mechanical stripping or other suitable cleaning agents comprehensive conditioning stage 08 be executed. Through this, for example, to remove a powder which, between the layers of the input material provided on the substrate B was provided to prevent tempting the already printed surfaces.

For the execution of or another in the printing material preferably as a pure further processing machine 01 trained machine 01 provided, in particular a working flexographic printing unit 09 is by this in a first advantageous embodiment, printing ink, and in a second, to be preferred embodiment varnish, in particular transparent paint applied. In the second case is the printing unit working after the flexo printing 09 as so-called "Lackwerk" 09 trained and includes z. B. in a pressure fluid supply, not shown, or in a pressurized fluid supply device a supply of a paint applied to the pressure point.

In principle, such a finishing stage serving processing 09 , For example, such as gravure or preferably as high-pressure, in particular as flexographic printing 09 trained printing unit 09 or coating unit 09 also in an og, next to the screen printing stage 02 inline one or more offset pressure levels 07 comprehensive combined offset and further processing or finishing machine 01 be provided. However, this may require reductions in either the quality of the finishing or in the reduced compared to a possible performance production speed of the offset printing.

In both in an offset printing works 07 as well as the further processing or finishing inline comprehensive printing press 01 as well as in the design as a pure, without offset printing units trained further processing machine 01 can the printing unit working by the printing process 02 in a first embodiment as a printing ink on the substrate B applying printing unit 02 , z. B. screen printing 02 in a second, preferred embodiment varnish, in particular transparent varnish applying printing unit 02 , z. B. as a screen printing varnish 02 be executed. In the second case, the printing unit is based on the through-printing method 02 as a so-called paint printer 02 , short Lackwerk 09 , trained and includes z. B. in a pressure fluid supply, not shown, or in a pressure medium supply means a supply of a paint applied to the pressure point.

In the stated embodiments of the machine, in particular as a pure, ie formed without flat or offset printing process finishing and / or finishing machine 01 trained machine, in the Bedruckstoffweg further comprises at least one trained with means for accelerating the drying process processing stage 11 , z. B. in the manner of a drying supporting conditioning stage 11 , in particular a dryer 11 , be provided. Such a dryer 11 is z. B. the Durchdruck- or screen printing stage 02 downstream and / or as a thermally active dryer 11 , Especially designed as an IR dryer and provides, for example, an improved paint history, ie a result in the particularly smooth surface texture of previously printed with ink and / or paint bodies.

The processing stages 07 ; 08 ; 09 ; 11 the machine 01 may be provided in a common frame or in separate, but interconnected racks. This includes the screen printing stage 02 associated frame or its associated part of the frame, for example, on at least one of its front side to the forme cylinder 04 lying sides a possibly temporarily closable opening 12 , z. B. an inspection and / or maintenance hatch 12 by which - with little installation effort - a doctor change and / or a visual inspection of the forme cylinder inside during operation is possible (eg., Indicated in 1 ).

The machine 01 comprises on the input side a Substratzufufhrehre 13 , z. B. substrate template 13 , in or on which of the machine 01 on the input side, preferably already printed, in particular already printed in the offset process - printing material B - z. B. depending on the expression of the substrate to be processed B in stacks, in a shingled stream, in rolls or in coils - to which supply is or is provided. On the output side, it comprises a substrate delivery device 14 , z. B. Display 14 , in or at which of those in the machine 01 processed, for example, processed, in particular refined substrate B ' after passing through the processing stages provided in the printing material path 07 ; 08 ; 09 ; 11 for pickup, z. B. depending on the characteristics of the processed substrate B in stacks, in a shingled stream, in rolls or in coils. Between the last processing stage 07 ; 08 ; 09 ; 11 and the display 14 can be an extended transport route 16 , z. B. a so-called. Display extension 16 Be provided by which the transport time and thus the drying time to the formation of the ready-to-pick-up container on the display 14 is extended and / or on which one or more additional processing steps formed with means for accelerating the drying process 17 , z. B. one or more, for example as a radiation dryer 17 , especially as a UV dryer 17 running dryers 17 are provided. Instead or in addition to this can in the unequaled or the preferred extended transport route 16 also a device 18 be provided for quality control, which may be, for example, an image capture device, such as a camera, or at least.

Although the substrate B for the previously described machines and in variation to subsequent representations basically also web-shaped and the machine 01 can be designed as web-and / or processing, is the substrate B in here preferred embodiment by arcuate substrate B given, the machine, but at least the screen printing stage 02 and optionally one or more subsequent downstream processing stages 07 ; 08 ; 09 ; 11 comprehensive part, designed as bow-and / or processing. The term "sheet", for example, any type of sheet-like substrates B understood, which as isolated material sections z. B. not like web-shaped substrate simultaneously through all processing stages 07 ; 08 ; 09 ; 11 the machine 01 is guided, but have such a limited section length, so that they at least a first already completed processing stage 07 ; 08 ; 09 ; 11 before leaving with one last of the editing stages 07 ; 08 ; 09 ; 11 come into operative contact. In particular, these are flat and preferably rectangular printed sheets B , which may be formed for example of paper, cardboard, cardboard, plastic, metal or a composite of a plurality of said materials. For example, the term "planar" means that one length and one width of the printing material sheet B each 50 times, in particular at least 100 times or even at least 500 times the thickness of the sheet corresponds.

In the design as a curved substrate B or printing material sheet B processing and / or processing machine, hereinafter referred to as sheet processing machine 01 , this includes, for example, in addition to the z. B. as investors 13 designated substrate template 13 one in the printing material path of the first processing stage 02 ; 07 ; 08 ; 09 ; 11 ; 16 upstream, for example as an attachment 19 or bow plant 19 designated alignment device 19 , The substrate delivery device 14 is by an example as a product display 14 designated delivery 14 educated. The screen printing stage 02 and optionally one or more of the above-mentioned further processing steps 07 ; 08 ; 09 ; 09 '; 11 ; 16 is or are between the Substratatzufuhreinrichtung 13 and the substrate delivery device 14 are the one or more processing stages 02 ; 07 ; 08 ; 09 ; 09 '; 11 ; 16 arranged.

The investor 13 , as a printing stock on a z. B. a stacking plate mounted stack of sheets preferably comprises not shown in detail Bogenvereinzelungsorgane and sheet transport organs, which are designed for example as a vacuum cleaner and as a transport suction and are. To the so-called. "Change" of the sheet pile, ie the reloading of the investor 13 with a new sheet stack, stopping the machine 01 to avoid is the investor 13 equipped with a nonstop device not shown here. This non-stop facility has z. B. via a in the stack template area of the investor 13 retractable, arranged on a plug-in unit auxiliary stack carrier, which is designed in particular as a rake, roller blind or plate.

The z. B. also referred to as a pile feeder or sheet feeder investors 13 follows downstream, for example, a z. B. as a belt table, especially as Saugbändertisch trained conveyor line 21 ,

The bow plant 19 preferably comprises a feed table, wherein in the working cycle of the printing material to be supplied sheet in the same path to their orientation z. B. as so-called front lays designated attacks, in particular front stops are performed. The attacks is z. Example, in particular as a vibrating gripper 22 trained bow accelerator 22 downstream of which, with respect to the leading edge and optionally with respect to a side edge aligned printing material sheet B a z. B. as a feed drum 23 , in particular transfer drum 23 designated funding 23 supplies. As an alternative to the attacks, the bow B also spent during the movement of the swing gripper in its correct position and aligned with the feed drum 23 be handed over. The feeder drum 23 hands over the from the conveyor line 21 ago coming printing material sheet B directly or optionally via one or more further transfer drums on the transfer and / or serving as an abutment and preferably as a rotating body 06 ; 24 ; 26 trained funding 06 ; 24 ; 26 the downstream following first processing stage 02 ; 07 ; 08 ; 09 ; 09 '; 11 , in particular in the case of a further processing machine 01 z. B. a preferred as a rotating body 24 , especially as a cylinder 24 , Transfer cylinder 24 or drum 24 denotes trained funding 24 a gravure or high pressure pressure stage 09 , in particular a flexographic printing stage 09 , or a z. B. also designed as a rotating body funding a druckformlos working pressure stage 09 ' ,

For further development, it is preferred as a further processing machine 01 trained machine 01 one of the pressure stage 02 and a preferably further printing stage 09 ; 09 ' upstream conditioning stage 08 , z. B. serving to remove powder conditioning stage 08 , provided, then the printing material sheet B from the feeder drum 23 directly or possibly via one or more further transfer drums to a z. B. as a rotating body 26 , especially as a cylinder 26 or drum 26 denotes trained funding 26 the relevant conditioning stage 08 to hand over.

In a preferred embodiment, at least those in the printing stages 02 ; 09 ; 09 ' and in the possibly the printing stages 02 ; 09 ; 09 ' upstream conditioning stage 08 over the substrate B with the respective editing tools 04 ; 29 ; 31 the relevant processing stages 02 ; 08 ; 09 ; 09 ' cooperative funding 06 ; 24 ; 26 ; 36 as a rotating body 06 ; 24 ; 26 ; 36 , especially as a cylinder 06 ; 24 ; 26 ; 36 or as drums 06 ; 24 ; 26 ; 36 designated executed. Related editing tools 04 ; 29 ; 31 can by the above for the pressure stage 02 already executed form cylinder 04 , by one in the further printing stage 09 with the rotating body 24 a pressure point forming cylinder 29 , z. B. printing cylinder 29 , or by a cooperating with this formless printing device, and optionally by a in the Konditionierstufe 08 with the abutment forming rotating body 26 together cleaning tool 31 , z. For example, a calender roll used for the desponding 31 , as a machining tool 31 be formed. The cleaning tool 31 For example, as a - preferably "non-fluid" in particular "non-pressure fluid leading" (ie non-ink-bearing or non-lacquer-bearing) roller 31 - Acceptance facility 31 educated.

The cleaning stage 08 For example, it may be similar to a printing unit, with one or more rollers 31 with one the printing material B transporting impression cylinder 31 work together, but without applying a pressurized fluid or dampening solution to the substrate surface. In this case, this conditioning stage resembling a printing unit is designed without a pressurized fluid supply or supply. You can in contrast, however, with a discharge device or a container for receiving the removed impurities, eg. As powder.

The cleaning tool 31 can thus as a roller 31 be arranged to act together under rolling contact with the surface to be cleaned. Ion of an alternative, not shown, it can also be arranged as a suction or blow mold contactlessly interacting with the surface to be cleaned.

In a preferred embodiment as a sheet-bending and / or processing machine 01 have the rotating body 06 ; 24 ; 26 for the takeover or transfer of the substrate to be funded B holding means in its peripheral area 32 , For example, each one or more in the circumferential direction of each other z. B. equidistantly spaced and explained in more detail below holding devices 32 , z. B. gripper devices 32 , in particular gripper bars 32 , on.

Between those with the editing tools 04 ; 29 ; 31 cooperating rotating bodies 06 ; 24 ; 26 at least the printing stages 02 ; 09 ; 09 ' and the possibly the printing stages 02 ; 09 ; 09 ' upstream conditioning stage 08 become the printing material sheets B either handed over directly or preferably via in each case at least one further, z. B. as a rotating body 33 trained funding 33 , especially as a transfer drum 33 referred, promoted, which also in its peripheral area holding means 34 , For example, each one or more in the circumferential direction of each other z. B. equidistantly spaced holding devices 32 , Gripper bars 34 exhibit.

Is one as a dryer 11 , in particular as a thermal dryer 11 trained and preferred the display 14 and the possibly provided delivery extension 16 upstream conditioning stage 11 provided in Bedruckstoffweg, it can also in this transport over a rotating body 36 , especially as a cylinder 36 or drum 36 denotes trained funding 36 carried out, which or which for exposure to desiccant, z. As a heated gas stream or IR radiation, with an appropriate means, for. B. a hot air blower or preferably a radiation source 37 , in particular IR radiation source 37 , as a machining tool 37 works together.

After the last downstream printing stage 02 ; 09 ; 09 ' and a possibly downstream thermal conditioning stage 11 the delivery is made to a further processed printing material sheet B ' to the delivery 14 promotional conveyor system 38 , which preferably as a chain conveyor system 38 is executed and to guide and promote a z. B. as a chain 39 trained circulating traction means 39 a number of as sprockets 41 trained drive and / or guide wheels 41 and for receiving and delivering the printing material sheets to be conveyed B opening and closing, not shown here holding means, for. B. gripper includes. In the area of recording of the printing material sheet, the previously open grippers are closed to take over the sheets, whereas they are used to deliver the sheets in the area of the delivery 14 z. B. be opened above the stack to be formed.

In a preferred embodiment of the further pressure stage 09 this is as operating according to a direct printing method and / or high-pressure printing stage 09 , Especially as operating according to the flexographic printing stage 09 formed, in which case the pressure point with each other forming cylinder 24 ; 29 as an impression cylinder 24 and form cylinder 29 are formed. Here, the form cylinder carries 29 on the periphery one or more printing plates whose raised areas are image-bearing. The printing forms are passed through at least one roller of a pressurized fluid application device 42 (Regardless of whether printing ink or varnish is to be applied here also as an inking unit 42 designated), in particular by an anilox roller dyed, which in turn is colored by a Einärbesystem. The latter may comprise a roller immersed in a paint or varnish stock which colors the anilox roller and an excess ink on the anilox roller which reduces the size of the anvil. Preferably, the inking system is executed by a the chamber roller inking chamber doctor.

In an embodiment not shown here further, z. B. as an inkjet printing stage 09 ' executed pressure level 09 ' or a further development with an additional of this additional pressure level is the pressure fluid, ie the ink or the paint, applying tool 29 z. B. as one or more printheads, especially inkjet printheads formed.

The preferred as a screen printing stage 02 executed, according to the Durchdruckverfahren working printing stage 02 includes as a tool a above, as a screen printing cylinder 04 executed form cylinder 04 , One through the form cylinder 04 worn printing form 43 is for the preferred case of a screen-printing printing unit 02 through a screen printing form 43 given and is in the case of rotary printing, for example, as a so-called. Round sieve 43 formed, which forms the or at least a portion of the cylinder jacket and a template with the negative of the printed image on the substrate B ie the bow B or a Raportlänge of a web-shaped substrate B , to be applied repetition length. In the case of planographic printing, the printing form z. B. executed as Flachsiebdruckform. The printing form rotating in the case of rotary printing 43 and the substrate B move synchronized in operation via a mechanical or electronic coupling relative to each other so that each unwound equal lengths to each other. When guiding printing material sheets B via an impression cylinder 06 Roll both jacket surfaces over the substrate to be printed B essentially slip-free on each other.

The pressure point 03 is through the nip between form cylinder 04 and impression cylinder 06 educated.

To push through in the interior of the round screen 43 located, z. B. formed as an ink or paint as printing fluids F through the open areas of the stencil of the printing form 43 , in particular through the uncovered mesh openings of a mesh fabric or through openings in a printing plate produced by electroforming 43 , a certain compressive force is needed. This is done by means of a squeegee 44 designated by-pass means generates a dynamic pressure of the pressure fluid held by it F on the printing form 43 causes. For a rotatable round screen 43 is the z. B. operatively rotationally fixed in the interior of the screen printing cylinder arranged doctor blade 44 in the region of a free, ie not clamped end portion, pressed with a pressing force from the inside against the rotating screen. The free, effective for the doctoring end portion can through the front, as a doctor blade 52 effective part of the squeegee 44 itself or - as shown here - through a part of one of the squeegee 44 specially included doctor blade 52 be. In both cases, the so-called doctor blade forms 52 on with the printing form 43 cooperating end of a squeegee edge.

The squeegee 44 , in particular the squeegee blade formed by it or enclosed by it in the region of the free end 52 , is - in particular from inside - under training one also as squeegee angle α designated, preferably acute angle α (ie, α <90 °), e.g. B. one between 40 ° and 85 °, in particular between 70 ° and 85 °, to the - in particular as a round screen 43 trained - screen printing form 43 to be employed or employed. The setting is done in a section area at or adjacent to the nip 03 with the impression cylinder 06 , z. B. within a peripheral portion in the screen printing form 43 for example, at most ± 10 °, in particular at most ± 7 ° (around the Rundsiebachse) or for example at most ± 15 mm, in particular at most ± 10 mm (in Rundsiebinnenumfangsrichtung) of the line through the intersection of the undisturbed impression cylinder peripheral surface with the axes of rotation in Anstelllage connecting level is given. As squeegee angle α should be understood in this case that angle, which - in a direction perpendicular to the axial direction of the printing plate 43 considered running cutting plane - in the touch point P the squeegee blade 52 between which from the free end to a squeegee 44 carrying doctor carrier 54 towards in the unloaded, ie without contact force, just touching condition extending longitudinal extent and the present at this contact line course of the perpendicular to the axial direction extending inner circumferential line, ie the at the point of contact P present "inner tangent", is formed or is. The in cross-sectional representation as respective points of contact P recognizable contact forms viewed in the axial direction a preferably axis-parallel extending contact line L1 which, due to the assumption of an unloaded, ie non-deformed operating state here as a "theoretical" Berührlinie L1 referred to as.

By an optionally applied during operation adjusting force can be a deflection of - in the manner outlined above as part of the doctor blade 44 trained or covered by this - doctor blade 52 a deviation, in particular reduction, of the actual point of contact P effective angle with respect to the above-defined manner squeegee angle α available. This possibly present under load deviation in the inclination of the present in the near-near blade section and / or the doctor angle α Corresponding inclination may be preferred for the subsequent adjustment of the squeegee angle below α (in the above definition) are neglected or disregarded. It is for example less than 10 °, z. B. less than 5 °.

The squeegee angle α - As it is defined here in the just unloaded Berührzustand, for example, may be in the range of 70 ° to 85 ° and be variable in the manner set out below. This angle α lies - z. B. assuming an initially level and straight shape - for example, under load and possibly resulting deformation in the doctor carrier 54 directly adjoining squeegee section.

In the here preferred case of a sheet-processing printing stage 02 or a sheet-processing machine 01 are on the circumference of the impression cylinder 06 one or more mutually offset in the circumferential direction holding devices 32 provided by which the printing material sheet B On the input side of the upstream funding can be received and the output side can be delivered to the subsequent funding. Basically, the recording, holding and dispensing by any suitable means, for. B. based on a switchable negative pressure and / or releasable positive locking, be formed. In schematically indicated and preferred embodiment here are, however, as a holding device 32 a one or a group of several grippers 46 comprehensive gripper device 32 provided by which the printing material sheet B On the input side at its leading end are receivable and the output side to the downstream conveyor line again be issued. The gripper device 32 here is z. B. in one in the otherwise cylindrical surface of the cylinder 06 provided and axially extending recess 47 , also as a pit 47 designated, arranged, the radially outwardly directed opening, z. B. pit opening, the cylinder jacket-shaped lateral surface interrupts and disturbs. In a multi-size version of the impression cylinder 06 ie an impression cylinder with a circumference, on the several printing material to be consecutively receivable, are the appropriate number of holding devices 32 and pits 47 in the circumferential direction one behind the other and each by a corresponding number of undisturbed cylinder jacket sections 48 , also as a saddle 48 or saddle 48 designated, arranged separately.

A not usable as a pressure abutment peripheral portion U _N can basically be alone through the opening of the holding device 32 receiving pit 47 or possibly through this opening and, if provided, a functional section adjoining the inlet and / or the downstream side, for example an overlapping area of a possibly provided upstream part, here only indicated by dashed lines 49 and / or a distance to be maintained by setting a _s to the trailing edge of the next pit opening, be given. Conversely, a usable for printing peripheral portion U _D basically by the lying between a leading end of the pit opening and the trailing end of the following in the circumferential direction the same or next following pit opening undisturbed cylinder jacket gate same.

An above-mentioned coloring aid 49 can be provided to early start the squeegee 44 in the form cylinder 04 even before reaching the pit end on the abutment forming impression cylinder 06 to enable. You can, for example, in the manner of a hinged flap 49 on the impression cylinder 06 be provided, which after the gripping of the printing material B over the gripper device 32 pushes and thereby shortened in the circumferential direction length of the pit opening, at least in the region of the leading end of the printing material.

An effective at unwinding circumferential length of the screen printing cylinder 04 should be even or an integer multiple of the sum of the usable printable length of the useable peripheral portion U _D and the non-usable for printing length of the disturbed, not usable as a pressure abutment peripheral portion U _N formed cycle sounds L _Z correspond.

In the following, solutions are proposed by which, individually or advantageously, combinations of widely differing requirements for the desired printed image can be met, that is, an optimum print quality for the respective parameters can be achieved with the least possible effort, despite a wide variety of screen finenesses and printing fluid consistencies. This is not only, but especially in connection with an above, as processing and / or finishing machine 01 trained machine 01 of particular advantage, since such a machine 01 to be able to process in a very varied manner pre-printed intermediates in a wide variety of types and / or different print or substrate formats.

As a screen printing stage 02 to be able to adapt the printing stage to different printing fluids and / or different screen sizes and / or types on which the printed image is based is the doctor blade 44 with her squeegee blade 52 with regard to one against the screen printing form 43 acting, in particular related to a unit of length along the contact line adjusting force and / or in view of the screen with the inside at the level of the contact line in the above sense formed doctor angle α variable and / or adjustable.

The z. In 3 only schematically in the interior of the forme cylinder 04 illustrated doctor blade 44 is part of a squeegee device 51 which - such. In 4 it can be seen - next to the squeegee 44 itself and possibly the squeegee 44 bearing and extending axially over at least the length of the squeegee 44 extending blade carrier 54 at least one medium or directly on a frame 61 , in particular on both sides, stored storage facility 53 includes. Preferably, however, in each case one end of the doctor blade 44 or the doctor carrier of the doctor blade 52 on both sides on respective side panels 59 of z. B. also the form cylinder 04 medium or directly supporting frame 61 , stored storage facility 53 includes. The squeegee carrier 54 is for example by a one- or multi-part traverse 54 formed, on which the squeegee 44 is arranged. As already stated, the doctor blade 52 through a front part of the squeegee 44 self-made, or as an independent part of the squeegee 44 includes his. In the preferred embodiment shown here, the squeegee comprises 44 one a squeegee blade 52 and a single or multi-part doctor blade holder 58 on which the doctor blade 52 z. B. is releasably attached. The squeegee 44 carrying doctor carrier 54 is for example in or on storage means of the respective storage facility 53 stored.

The squeegee device 51 further includes one or more of the squeegees 44 or the squeegee 44 carrying doctor carrier 54 relative to the screen printing or forme cylinder 04 moving drive means 56 ; 57 which z. B. via appropriate signal connections 62 ; 63 with the drive means 56 ; 57 controlling control means 66 ; 67 a merely schematically indicated control device 64 are connected. For example, first, on and off the squeegee 44 accomplishing drive means 56 and / or second, a change of a doctor angle α accomplishing drive means 57 intended. The the drive means 56 ; 57 controlling control means 66 ; 67 the control device 64 can be spatially distributed in the same unit or even distributed be provided in a signal-technically connected control system, for example, the control of the first drive means 56 respective first control means 66 and the control of the second drive means 57 respective second control means 67 can be provided. The control means 66 ; 67 can be designed as a control circuit or as a program routine programmed in data processing means. They can be used as control modules 66 ; 67 a common control device 64 be executed.

The the doctor carrier 54 and with it the squeegee 44 movably stored storage facility 53 is now executed and set up the squeegee 44 or the carrying this Rakelträger 54 one to the axis of rotation R04 of the forme cylinder 04 axis-parallel pivot axis S1 to pivot and / or the radial position of the squeegee 44 relative to the axis of rotation R04 of the forme cylinder 04 to vary. Although both or only one of the two actuating movements mentioned could be or could be effected by manually actuatable actuators, at least one drive means are in each case provided for at least one, preferably both, of the actuating movements 56 ; 57 intended. In the event that for the storage of the blade carrier 54 two storage facility 53 are provided, in principle, only one of the storage facilities 53 but preferably per storage device 53 a corresponding drive means 56 ; 57 be provided.

In a particularly preferable embodiment, the bearing device 53 , In particular, the pivoting causing adjusting means, executed and set up, a pivoting of the doctor blade 44 or of the doctor carrier 54 to be able to make such by the respective adjusting mechanism that when pivoting the doctor 44 or of the doctor blade 52 to a setting angle Δα within at least one operationally provided adjustment range of z. B. at least 15 °, preferably of at least 20 °, on the inner circumference of the round screen 43 measured in the circumferential direction relative position between one with the pressure in the axes of rotation R04 ; R06 connecting level on the inner circumference of the round screen 43 formed cut line V and the theoretical contact line L1 not or at least not significant, e.g. B. less than the hundredth part of the squeegee 44 cooperating Rundsiebinnenumfangslänge, changes. In operating position, ie in pressure-on, above-mentioned cutting line V and the touch line L1 coincide or related to the axis of rotation R04 of the forme cylinder or the round sieve 43 around a small angle, z. B. offset by up to 5 ° or at least up to 3 ° to each other.

For pivoting the squeegee 44 or their doctor carrier 54 includes the storage facility 53 one on the rack 61 or the two side parts 59 of the frame 61 to a z. B. frame-fixed pivot axis S1 pivotally mounted storage means 68 , z. B. an eccentric trained bearing or preferably a lever arm 68 , The squeegee 44 carrying doctor carrier 54 is now - z. B. at a radial to the pivot axis S1 spaced location - with the lever arm 68 connected so that when pivoting the lever arm 68 as a result, a pivoting of the squeegee 44 he follows.

In the here particularly preferred embodiment of the doctor device 51 is this - especially the storage facility 53 as well as their relative position to the screen printing form 43 - Designed and arranged such that the pivot axis S1 the one or the doctor carrier 54 supporting lever arm 68 or lever arms 68 with the theoretical contact line L1 coincides. By "collapsing" is intended, for example, an exact coincidence up to a coincidence with at most a slight, not fundamentally underlying solution thought not significantly affecting maximum radial offset between the theoretical contact line L1 and the pivot axis S1 be understood. This maximum offset corresponds, for example, at most to the tenth part, in particular at most the twentieth part of the axial height of the interaction with the doctor blade 44 or the doctor blade edge present this Rundsiebinnenradius and / or for example at most 10 mm, preferably at most 5 mm. In the case of doubt, the geometrical center of the possibly forming, albeit extremely narrow, contact strip is to be used under the geometrically regularly not one-dimensionally extending contact line. Basically, this approach can be as far as nothing contradictory results on a Flachsiebdruckverfahren be formed as a flat screen trained printing form or be.

The lever arm 68 can basically in different ways, eg. B. by the eccentricity of the frame 61 rotatably mounted eccentric bearing or preferably as an arm of a multi-arm or in particular one-armed lever 69 be educated. This can be in or on the frame 61 or in or on the respective side part 59 over z. B. as a bolt 91 or stub axle 91 trained storage equipment 91 and optionally a friction reducing radial bearing rotatably about the pivot axis S1 be arranged.

The at least one or both preferably the doctor carrier 54 carrying lever arms 68 are by at least one, preferably by in each case one in particular remotely actuable drive device 71 , short drive 71 pivotable, which or which already an above drive means 57 includes. In this case, the drive device basically in be formed a variety of ways, with appropriate actuation of the drive means 57 a pivoting of the lever arm 68 to effect. This can be the drive 71 and / or the drive means 57 directly or via a gearbox between a -. B. with respect to the frame 61 fixed to the frame and / or fixed with respect to a radial distance to the round screen axis - - attack point 73 , z. B. fulcrum 73 , and a high-strength point of attack 72 , z. B. lever-proof pivot point 72 to be effective.

The coupling in the attack points 72 ; 73 are preferably gimbals on the frame 61 stored, so that in addition to the pivoting movement, a possibly further explained below sideways movement, z. B. for setting a page register can be recorded.

Regardless of the form with or without gear is the drive means 57 However, executed and set up in a preferred embodiment, reproducibly more than two defined, mutually different positions of the lever arm 68 representing drive operating states, or briefly operating states to approach.

In a particularly advantageous embodiment, the drive means 57 adapted and arranged, at least within a control range, for example, a pivoting of the lever arm 68 by an angle of 15 °, preferably of at least 20 °, to allow continuous placement. This continuous placement is fundamentally due to the most varied configurations of the drive device 71 to realize, for example via a - possibly arcuate - rack, which by a z. B. electric motor driven pinion is pivoted. In here z. B. illustrated, preferred embodiment, the drive of the lever arm takes place 68 via a motor spindle drive 71 trained drive 71 , Wherein the spindle gear comprising the spindle and the spindle driving motor 57 , in particular electric motor 57 , Can be summarized in a unit as a spindle linear drive.

This is preferred as an electric motor 57 trained drive means 57 is from the controller 64 her, in particular by implemented in this and appropriately established and / or programmed control means 67 , Such controllable that by the - preferred as a motor spindle drive 71 trained - drive 71 At least those operating states are to be approached continuously, which are the pivotal positions of the lever arm lying within the above-mentioned adjustment range 68 represent.

That as an electric motor 57 running drive means 57 can be designed as a position-adjustable or as a stepper motor or form a control loop for reproducible position taking with an external position sensor. In an advantageous embodiment, the electric motor 57 designed as a servo drive.

The two indirectly on the squeegee 44 or on the doctor carrier 54 attacking drives 71 or their drive means 57 can from the controller 64 or the relevant tax 67 are basically made to be synchronous with each other or be.

By the - in particular remotely operable - rotary actuator for the doctor blade 44 can now the squeegee angle α be changed without manual adjustment to possibly new circumstances and / or during operation to optimize the printing result.

In addition to adjusting the squeegee angle α can in an advantageous development. a device not shown here can be provided, through which the contact line L1 can be adjusted in the tangential direction parallel to the Rundsiebachse or at an angle to this. The adjustment can be possible both in the printing direction or against the printing direction. Again, the type of adjustment is preferably realized by motor and thus an adjustment in printing operation possible.

Considered as a particularly advantageous solution aspect on its own or in particular advantageous in connection with the above-mentioned pivot drive 71 one preferably straight or at least substantially with the theoretical contact line L1 coincident pivot axis S1 is the squeegee 44 or the squeegee 44 carrying doctor carrier 54 in its or its radial position relative to the screen printing form 43 variable. Preferably, this radial position is variable in a control range, in addition to a shutdown of the doctor blade 44 , ie a lifting of the doctor blade edge from the undisturbed inner circumference of the unloaded round screen 43 at a distance a _AN from Z. B. at least 0.2 mm, beyond the first touch when hiring addition pressing the doctor 44 , in particular the doctor blade 52 , ie a setting of the squeegee 44 under possibly slight deflection of the squeegee 44 in the region of its free end section or doctor blade 52 and / or the round screen 43 what z. B. on the assumption of lying in the touch point zero position a place on a negative distance a _AB from Z. B. to - 0.2 mm or more negative.

From the concept of "putting down" the squeegee 44 here and in the following, however, in an alternative embodiment - unless explicitly excluded - also a displacement of the squeegee 44 to be inside in the manner that covers the squeegee 44 after this " Turn off "while still - z. B. slightly - in touching contact with the screen printing form 43 remains, but about, for example, the discharge caused by the radial displacement of the doctor blade 44 is effected further inside, a lifting of the previously by deformation of the abutment, z. B. the impression cylinder 06 , or the substrate B Employed screen printing form 43 results. A pitch causes in this case a deformation of the lifted screen printing form 43 by a displacement of the doctor edge outwards until deformation of the screen printing form 43 at least one contact with the abutment, z. B. the impression cylinder 06 , or the substrate B results.

The squeegee 44 or the doctor carrier 54 is for performing above radial adjusting movement by at least one, preferably by in each case one in particular remotely operable drive device 74 , short drive 74 , adjustable, which or which an already mentioned drive means 56 includes. In this case, the drive device 74 basically be designed in a variety of ways, with appropriate actuation of the drive means 57 a place of squeegee 44 or of the doctor carrier 54 to effect with respect to the relative position of the doctor edge to Rundsiebinnenseite. This can be the drive 74 and / or the drive means 56 basically directly or via a gearbox between a -. B. with respect to the frame 61 and / or be effective relative to the flight of the round screen axis - fixed point and a rakel or Rakelträgerfesten point. For the above case of or over one or two lever arms 68 swiveling squeegee 44 or doctor carrier 54 is the drive 74 and / or the drive means 56 z. B. between a hebelarmfesten point and a rakel or Rakelträgerfesten point effective.

Basically, regardless of the expression with or without transmission is therefore a drive device 74 with a controllable drive means 56 provided by which the arrival and Abstellbewegung the doctor 44 mechanically independent of the rotary drive of the forming and impression cylinders 04 ; 06 and / or from the machine and / or printing material phase position Φ _M is feasible. In addition, by such a drive device is preferred 74 and the controllable drive means 56 the measure of employment or the resulting one in Anstelllage "AT" present contact force, ie, for example, over the above-mentioned first contact in the direction of addition going movement of the doctor 44 , variable.

These are the mechanically effective independent of the rotary drive radial effective drive 74 and the squeegee 44 or the doctor carrier 54 supporting storage facility 53 Preferably set up by appropriate means and adapted to the hub of the on and off, in particular at least the Anstelllage " AT "Relevant end position, remotely operated to vary. This can preferably via a corresponding driving of the drive means 56 by the control means set up for this purpose 66 itself or as an alternative to this possibly via a driving of a drive of a not shown, the adjusting movement limiting stop means allows. The variation of the strength of the job is z. B. at weggesteuerter doctor blade adjustment via a variation of the Anstelllage " AT "Relevant end position, preferably by a control of the drive means 56 even with regard to a position to be adopted or by optionally varying a position of a stop movement limiting the stop means. In an alternative embodiment with force-controlled blade control, the variation of the intensity of the setting over a defined variation of one of the drive means 56 on the output side take effect effective force in the direction of adjustment.

The drive is preferred 74 and / or in particular the drive means 56 executed and set up reproducibly more than two defined, each different radial relative positions between blade edge and Rundsiebinnenfläche representing drive operating states BZ ; BZ _AB ; BZ _AN ; BZ ' _AN , or briefly operating states BZ ; BZ _AB ; BZ _AN ; BZ ' _AN , in particular two or even more than two different Anstelllagen or Anstellkräfte representing operating conditions BZ _AN ; BZ ' _AN to start or take (see, for example, in example 5 with a parking space " FROM "And two different strong Anstelllagen representing drive operating states BZ _AN ; BZ ' _AN shown) .The specific, the associated Anzufahrender Anstelllage " AT "Conditional operating condition BZ _AN ; BZ ' _AN can z. B. in the control device 64 as the relevant operating position for the Anstelllage BZ _AN ; BZ ' _AN be determined. The determination and / or modification of the "Anstelllage" AT "Relevant and through the control device 64 for the Anstelllage " AT "To be considered operating condition BZ _AN ; BZ ' _AN For example, it can be done via an operator interface and / or be effected by results of an evaluation of data originating from an inspection system.

In continuation of the above to the term "Abstellens" mentioned, is here and below in an alternative embodiment under the storage position " FROM "The squeegee 44 - unless explicitly excluded - also a position of the squeegee 44 be included in which they with the screen printing 43 after the "shutdown" still -. B. slightly - is in touch contact, the screen printing form 43 but about, for example, the discharge caused by the radial displacement of the doctor blade 44 is effected further inside, from the abutment, z. B. the impression cylinder 06 , or the substrate B is lifted off. An attack position " AT "Is due to a displacement of the doctor edge to the outside given, in which by deformation the previously lifted screen printing form 43 at least in contact with the abutment, z. B. the impression cylinder 06 , or the substrate B located.

In particular, this is mechanically independent of the rotary drive independent drive means 56 and the squeegee 44 or the doctor carrier 54 Storage facility 53 adapted to the hub of the on and off, in particular the Anstelllage relevant end position, via the control of the drive means 56 to vary. Basically, this approach can be as far as nothing contradictory results on a Flachsiebdruckverfahren be formed as a flat screen trained printing form or be.

In a particularly advantageous embodiment, the drive means 56 adapted and arranged, at least within a parking range, for example, a setting of the doctor blade edge in at least a minimum range between a parking position and a storage position " FROM "Representing operating condition BZ _AB and a positioning position or a positioning position " AT "Representing operating condition BZ _AN ; BZ ' _AN - For example, within at least one adjustment range of z. B. -0.2 to +0.2 mm, in particular in at least one adjustment range of -0.2 to 0.5 mm, to allow continuous placement. In this case, a sequence of equidistant discrete steps should be understood as "continuous", which is conditioned, for example, by restriction or rounding down to the smallest steps to be considered and / or hand-handled in the variable to be considered.

This continuous placement is basically to be realized by a variety of embodiments of the drive device, for example via an electric motor caused pivoting movement or otherwise. In here z. B. illustrated, particularly preferred embodiment, the drive of the doctor blade 44 and / or the doctor carrier 54 - Within at least the above minimum range - along a rectilinear motion by a linear drive 74 engineered drive 74 , For this purpose, the storage facility 53 with appropriate storage means 81 . 82 designed for linear positioning. This linear drive 74 can be realized in different ways to the squeegee 44 or blade edge along a rectilinear adjusting movement on and off. By in a preferred embodiment, a continuous and controlled, ie defined, places is possible, is also the measure of stopping and / or particular Anstellens, ie the positive or negative distance along the linear adjustment movement and thus the contact force, also referred to as doctor pressure, variable and / or adjustable.

The linear movement could basically by arbitrarily executed, linear movements causing drive means 74 be educated. The linear drive of the doctor blade preferably takes place 44 or of the doctor carrier 54 but electric motor. This can be done by an electric linear motor or preferably by a spindle drive 74 trained drive 74 be realized, which is preferably operated by an electric motor or is. Here is the spindle drive 74 preferably as a ball screw 74 educated. The spindle gear and the spindle driving motor 56 , in particular electric motor 56 , As shown by way of example, can be combined in a unit forming a spindle linear drive.

This is preferred as an electric motor 56 trained drive means 56 is from the controller 64 her, in particular by implemented in this and appropriately established and / or programmed control means 66 , Such controllable that by the - preferred here as a spindle drive 74 trained - drive 74 continuously at least those operating states BZ ; BZ _AB ; BZ _AN ; BZ ' _AN are to be approached, which lie within the above-mentioned adjustment range relative positions of the doctor blade 44 or doctor edge to the round screen 43 represent.

That as an electric motor 56 running drive means 56 can be designed as a position-adjustable or as a stepper motor or form a control loop for reproducible position taking with an external position sensor. In a preferred embodiment, it is designed as a servo drive, preferably with electronic position and / or speed and / or torque control.

It can be used for moving the double-sided squeegee 44 or of both sides mounted doctor carrier 43 or for the storage facilities provided on both sides 53 a common drive 56 with a the two sides with respect to the adjusting movement mechanically synchronizing coupling, z. B. a synchronous spindle or a crossmember, may be provided. In a preferred embodiment, medium or direct grip on the doctor blade 44 or on the doctor carrier 54 on both sides, ie in the area of both front sides of the screen printing stage 02 or the screen printing cylinder 04 , Such, the - preferably linear - locations of the drives relative to the relative position 74 or drive means 56 at. It can in the case of two drives 74 or drive means 56 these preferably each independently about z. B. the controller 64 be adjustable, z. B., however, if necessary, be synchronized with each other electronically.

By - in particular remotely operable - actuator 74 for the squeegee 44 or the doctor carrier 54 can now turn on and off and the Squeegee pressure, ie the degree of over the first touch going beyond, and possibly the degree of gap when parking without manual control effort to possibly new circumstances and / or be changed during operation to optimize the printing result. In an advantageous embodiment, two independent to be provided drives 74 and / or drive means 56 intended. In this way, for example, the doctor pressure in the region of the two near-end doctor blade sections can be set differently from one another and / or a possibly off-centered, ie asymmetrical arrangement of the circular sieve relative to the doctor blade length 43 compensate.

The storage facility 53 and / or drive device 74 for the - preferably along the at least in the adjusting range rectilinear travel - on / off is executed and set up that the adjusting movement between the arrival and the Abstelllage "AT"; "FROM" the squeegee 44 at least within the said minimum setting range along the longitudinal extent of the doctor blade which extends in the unloaded contact state 52 runs. This should possibly also be understood to mean only slight deviations in the direction, for example, of not more than 5 °, in particular not more than 3 °, which do not significantly affect the fundamental solution idea. Under the "longitudinal extent" of the doctor blade 52 is here in the unloaded state perpendicular to the axial direction, ie perpendicular to the printing unit width, and perpendicular to the doctor blade thickness, ie its thickness, extending rectilinear extent of the free, ie not clamped end portion of the doctor blade 52 understood between clamping and blade edge. In a - at least in the unloaded state - regularly planar formation of the doctor blade, the adjusting movement accordingly takes place along a lying in the doctor blade plane direction, which may be understood in the case of a significant thickness of the doctor blade as doctor blade plane, for example, parallel to the surface running average cutting plane of the doctor blade.

By turning the squeegee on and off 44 in the above sense, along the direction of the longitudinal extension present between the clamping point and the doctor edge is a location of the doctor blade 44 and / or the doctor blade 52 for the purpose of turning on and off and / or variation of the measure when hiring and / or when parking possible, without being forced the squeegee angle α changes or a change would have to be compensated by placing other actuators.

The previously set drive device 74 for the arrival and Abstellbewegung can basically only one in the context of pressure-on and pressure-off or for maintenance or armaments required on and off the squeegee 44 serve.

In a particularly advantageous embodiment, the stated drive device 74 however, for the on and off movement together with the control means controlling them 66 however, be executed to the squeegee 44 operationally - ie during production - cyclically and synchronized to Machine and / or printing material phase position Φ _M , in particular directly or indirectly correlated to the angular position of the impression cylinder 06 To relieve, in particular even slightly from the inner circumference of the round screen 43 take off and reinstate. This can prevent the squeegee 44 due to its contact force the round screen 43 during rollover in the area of an optionally available longitudinal seam (eg in the case of fabrics) and / or during rolling of the impression cylinder and counter-pressure cylinder 04 ; 06 during passing of the pit opening unduly deformed or with the grippers 46 or other counter-pressure cylinder parts will collide and be damaged. In this case, an above Einpräghilfe 49 at least shorten the pit opening during rolling over and / or the grippers 46 cover and thus the earliest possible use of the squeegee 44 to the round screen 43 and in the direction of the impression cylinder 06 , and thus a timely structure of the Farbwulstes and back pressure in front of the squeegee 44 allow.

A purely control-related, so not based on mechanical coupling synchronization of a cyclically repeating arrival and Abstellsequenz to the machine and / or printing material phase position Φ _M , wherein the arrival and Abstellsequenz z. B. by a cycle with one or more each by a shutdown P _AB interrupted starting phases P _AN is formed, in principle, in a variety of ways to a rotational movement of a component involved in the printing material transport or to the control signals of a transport movement of the printing material B determining control device. For example, the drive means 56 and / or a drive means 56 controlling control device 64 or the relevant control means 66 in signal connection to a machine and / or printing material phase position Φ _M representing and the control of the drive means 56 with regard to a length and / or location of an arrival and Abstellsequenz serving as a master phasing 76 , the z. B. as a an angular position and delivering as Leitachsgeber 76 designated sensor 76 or preferably as a machine phase position predetermining and therefore representing electronic master axis 76 is executed. The machine and / or printing material phase position Φ _M representing information is in 4 by way of example with the machine and / or printing material phase position Φ _M symbolizing angle symbol indicated.

In particular, in the case of the bow-processing and / or processing execution of the print-through, in particular screen printing stage 02 and / or in the case of the sheet transport with at least one above-mentioned gripper device 32 executed impression cylinder 06 can the squeegee device 51 thus one the on and off movement of the squeegee 44 between the Anstelllage "AT" and a storage position "FROM" enabling storage facility 53 and a drive device configured, for example, in the aforementioned manner 74 with appropriate tax funds 66 include, through which the squeegee 44 in operation synchronized to a machine or printing stock phase position Φ _M to the z. B. as a round screen 43 trained screen printing form 43 on and off this is off. The drive device 74 includes a controllable drive means 56 , by which the arrival and Abstellbewegung the squeegee 44 mechanically independent of the machine and / or printing material phase position Φ _M is feasible.

The drive device 74 is thus preferred by the drive means 56 without mechanically rigid coupling to a machine and / or printing material phase position Φ _M representing machine element in at least one Anstelllage "AT" causing operating conditions BZ _AN or preferably in several the Anstelllage "AT" causing operating conditions BZ _AN ; BZ ' _AN and in at least one the storage position "FROM" causing operating state BZ _AB available (see eg 5 ).

In a particularly advantageous embodiment and / or preferred development og doctor device 51 can be used by the controller 64 included and with the drive means 56 associated control means 66 to be trained and equipped, the squeegee 44 depending on the substrate format F.1 ; F.2 and / or the printed image information I _B with varying phase lengths and / or positions on and off. Here is by the control device 64 included control means 66 a length and / or location and / or number of Anstelllage "AT" relevant phases P _AN within one in terms of their cycle length L _Z fixed and repetitive sequence depending on the substrate format F.1 ; F.2 and / or the printed image information I _B variable. Per revolution of the impression cylinder 06 For example, in the case of a multiple-size execution, a corresponding number of cycle lengths may be used L _Z to go through.

The the substrate format F.1 ; F.2 and / or the printed image and information to be processed I _B can the tax funds 66 z. B. via a signal connection from a planning and / or management level 77 be made available or be. This can for example - especially in the case of the substrate format F.1 ; F.2 and / or the printed image relevant or representative information - via a signal connection from one of the planning and / or management level 77 or be connected via a signal connection for the transmission of data from the product planning or via a signal connection for the transmission of data from the prepress.

In a first example of the design of the control means 66 or for controlling the blade movement, z. In 6 schematically based on a side view of a usable peripheral portion U _D comprehensive cylinder jacket processing indicated, for example, in a first operating situation printing material sections B a first format F.1 ie with a first substrate surface L _B1 , and in a second operating situation printing material sections B a second format F.2 ie with a second bed of printing material L _B2 can be printed or printed. Depending on the respective printing substrate L _B1 ; L _B2 or an information representing this length I _B becomes the phase length of the phase P _AN with an employee squeegee 44 or, preferably for this case, an end of the phase P _AN with an employee squeegee 44 by the control device 64 or the implemented control means 66 determined and / or it is carried out depending on the respective Bedruckstoffläge L _B1 ; L _B2 or an information representing this length I _B on and off the squeegee 34 in a particular cycle Z ₁ ; Z ₂ (see eg 5 ), in which the differing Bedruckstofflägen L _B1 ; L _B2 different phase lengths for each phase P _AN with an employee squeegee 44 or - preferred for this case - different phase positions for the end of the respective phase P _AN with an employee squeegee 44 are assigned. The phase position for the beginning of the respective phase P _AN with an employee squeegee 44 can each have a same and z. B. fixed, but may be changed if necessary. This can, for example, in the manner outlined above, even before the start of the usable for printing peripheral portion U _N lie.

In a second, possibly instead of or optionally for the first embodiment feasible or providable embodiment, for. In 7 schematically based on a side view of a usable peripheral portion U _D comprehensive cylinder jacket processing indicated, the phase length of the phase P _AN with an employee squeegee 44 or at least an end to the phase P _AN with an employee squeegee 44 by the control device 64 or the control means 66 depending on the respective print image length L _D or an information representing this length I _B certainly. Under the print image length L _D should z. B. in this case be understood that length, the flow side by the first and return side by the last by the through the round screen 43 given printing form to be provided inking is limited. A hereby given intermediate pressure range 78 can be continuous or discontinuous pressure ranges 44 exhibit. It is done for operating situations with differing print image length L _D depending on the respective print image length L _D or an information representing this length I _B on and off the squeegee 44 in a particular cycle Z _1; Z ₂ in which the differing print image lengths L _D mutually different phase lengths for the respective phase P _AN with an employee squeegee 44 or different phasing for the end of each phase P _AN with an employee squeegee 44 are assigned. The phase position for the beginning of the respective phase P _AN with an employee squeegee 44 can each have a same and z. B. fixed, but may be changed if necessary. This can, for example, in the manner outlined above, even before the start of the usable for printing peripheral portion U _N lie. The phase position for the beginning of the respective phase P _AN with an employee squeegee 44 In this case, as above, each may be a same or a phase position dependent on the print image beginning.

In a third, possibly instead of or optionally to the first and / or second embodiment feasible or providable embodiment, for. In 8th schematically based on a side view of a usable peripheral portion U _D comprehensive cylinder jacket processing indicated, can per cycle length L _Z several phases P _AN with an employee squeegee 44 and several phases P _AB with an employee squeegee 44 be provided. This is a beginning and an end of the respective phases P _AN with an employee squeegee 44 by the control device 64 or the control means 66 depending on information I _B determines, which considered in the transport direction phase position of interrupted by unprintable stripes print strip 79 a print area 78 represent. There is an individual, depending on the particular distribution of the pressure strip for operating situations with divergent pattern of to be printed and not to be printed stripes 79 or from a information representing this distribution a multiple on and off the squeegee 44 in a respective cycle, in which the one in the distribution of the pressure strip 79 deviating pressure ranges 78 different patterns for the phase positions and / or lengths, ie the location of the respective beginnings and ends, the respective phase P _AN with an employee squeegee 44 are assigned. The information concerning the printed pattern I _B to the number and / or location of the printing strips 79 is based for example on data obtained by evaluation of the pressure stage 02 or the printing form 43 to be printed image, in particular by evaluation of z. B. are obtained in the prepress stage in data form target printed image or are. In this case, to be printed strip, which can be replaced by z. B. narrower unprintable strips are interrupted despite their discontinuity to larger pressure strip 79 be summarized or become.

In particular, in connection with the first and the second embodiment is by the control device 64 or the control means included 66 within the preferably fixed cycle length L _Z a ratio between the relative to the length of the swept inner circumference on screen printing stencil phase length of the Anstelllage "AT" relevant phase P _AN and the parking position "FROM" relevant phase P _AB variable.

Regardless of whether the tax means 66 comprises a control circuit and / or control routine for the above-mentioned cyclic and synchronized locations, can be a setting of the measure of at least the setting, ie adjusting the in the phase of Anstelllage "AT" present Anstellkraft, manually via an operator interface, z. B. via an operator interface provided on the control panel, are selected and / or varied.

In a preferred embodiment for the doctor device 51 and / or storage facility 53 this is both with a drive 71 and possibly corresponding storage means for varying and / or adjusting the doctor angle α as well as with a drive 74 and, where appropriate, appropriate storage means for turning on and off the squeegee 44 to the as a round screen 43 executed printing form 43 intended. In this case, the bearing device is preferred 73 carried out such that when setting the doctor angle α by means of the drive means provided for this purpose 71 the on and off of the squeegee 44 effecting drive 74 , in particular linear drive 74 , forcibly with the squeegee 44 is moved.

Here are drive 74 and, where appropriate, appropriate storage means for turning on and off the squeegee 44 at around the pivot axis S1 swiveling lever 69 , in particular on the doctor carrier 54 supporting lever arm 68 arranged, with the drive 74 is effective between a hard point and a rakelträgerfesten attack point.

In a preferred embodiment of the rocket-resistant point of attack is a rakelträgerfester slide 81 trained storage means 81 given, which in a as a stable guide 82 , in particular linear guide 82 , trained storage equipment 82 is mounted linearly movable. In particular, the linear guide 82 so on the lever 69 or lever arm 68 arranged and oriented, that - in at least og minimum range - the movement of the carriage resulting above movement of the squeegee 44 along the longitudinal extent of the doctor blade in the unloaded state of contact 52 runs.

The lever 69 or lever arm 68 In this case, it is preferably an in the above manner with a coincident with the doctor blade edge pivot axis S1 stored.

The frame-fixed point of attack 73 for the drive which effects the doctor angle change 71 can basically at the screen printing stage 02 assigned frame 83 or frame part 83 be provided, which, for example, the operational space fixed printing unit frame 83 forms.

However, at least the screen printing form is preferred 43 medium or directly rotatable on a frame 61 a screen printing device 86 stored. The screen printing form 43 is here by a on the frame 61 attacking and remotely actuated drive means 87 comprehensive drive device 88 in the center distance a to the impression cylinder 06 changeable. The screen printing form is preferred 43 and the squeegee 44 by the drive device 88 for changing the axle distance between the impression cylinder 06 and the screen printing form 43 jointly movable. For this they are preferably medium or directly on the same one or more parts, a total of movable frame 61 stored. In particular, the frame 61 by the drive device 88 relative to a z. B. the impression cylinder 06 and optionally at least one transfer drum 33 carrying frame 83 , z. B. above room-fixed printing unit frame 83 , movable frame 61 stored. The the impression cylinder 06 and optionally at least one transfer drum 33 comprehensive lower part of the printing unit 06 is also referred to as a printing unit base and can be designed as a whole in the engine room as einbringbares sub-module.

The movable frame 61 forms together with the components arranged thereon z. B. the on and off screen printing device 86 off, which next to the rack 61 at least the screen printing form 43 carrying screen printing cylinder 04 and the to the screen printing form 43 adjustable and / or employed squeegee 44 includes.

In the case of an above-mentioned storage facility 53 with storage facilities 68 ; 69 ; 91 and a drive device 71 for varying the squeegee angle α These are also from the screen printing device 86 includes. These are for example by the drive device 88 moved. In addition or instead, in the case of an above-mentioned storage facility 53 with storage facilities 81 ; 82 and a drive device 74 for turning on and off the squeegee 44 also this of the screen printing device 86 includes and, for example, moved.

The drive means effecting the axle distance change 87 is executed in a preferred embodiment and adapted to, in addition to one in a pressure-on-position L _D the screen printing form 43 on the impression cylinder 06 assumed operating state BZ _D and a different, a print-off position L _A with a relation to the former situation L _D larger center distance a between the impression cylinder 06 and the screen printing form 43 representing and reproducible to be taken defined operating condition BZ _A reproducible at least one further defined operating state BZ _R to take which one position L _R with respect to the first two layers L _A ; L _D larger center distance a represents. This further location L _R , z. B. maintenance and / or set-up L _R , For example, for set-up or maintenance work, for example as a cleaning pad for cleaning the screen printing 43 and / or as a setup for a printing form change in the case of a z. B. formed as a flexible flat screen and up or unwound printing form 43 be taken or be. For the setup L _R , is the center distance a z. B. at least 50 mm, preferably even at least 100 mm over that of the pressure-on-layer L _D enlargeable.

In a first, z. B. with regard to the control of little complex advantageous embodiment, that of the drive device 88 included drive means 87 as a fluid-operated actuator 87 be educated. This can be considered as a fluid-operated cylinder-piston system 87 , especially as a multi-position cylinder-piston system 87 be carried out on the output side, a total of at least three defined piston positions. It includes, for example, a total of exactly or at least three different defined, the operating conditions BZ _D ; BZ _A ; BZ _R representing switching states. In this case, for example, for the maintenance and / or set-up L _R a switching state with pressing two chambers in a same, the stopping effecting direction, for the print-off position L _A a switching state with only one chamber being pressed in the stopping direction and the pressure on position L _D a switching state with a depression of two chambers in a same, the hiring effecting direction may be provided. Preferably, the cylinder-piston system 87 this at least with regard to the transfer in pressure-on-position L _D designed double-acting, ie formed with an oppressible both in the Abstellrichtung and in Anstellrichtung Kolbenhubkammer. Preferably, both of z. B. two chambers designed so double-acting. Although basically provided also a hydraulic operation can be, is the cylinder-piston system 87 preferably pneumatically operated.

The operating condition assumed in pressure-on BZ _D can - what the output side state of the drive means 87 concerns - basically freely ingestible and limited only by a maximum end position to be taken. The operating condition actually assumed in pressure-on BZ _D For example, by a positioning device described in more detail below 107 limited and / or variable.

In an alternative embodiment which is advantageous with regard to a higher variability, this can be achieved by the drive device 88 included drive means 87 as at least within the two most distant of the said operating conditions BZ _R ; BZ _D given actuating range continuously adjustable drive means 87 be executed. Here is the drive device 88 for example, as an electromotive linear drive 88 and / or as an electric motor operated spindle drive 88 executed. The drive means 87 is then correspondingly by an electric motor, such as an electric linear motor or z. B. executed by an electric motor servo drive

Moving the screen printing form 43 , in particular of this carrying screen printing cylinder 04 or the screen printing cylinder 04 carrying frame 61 can basically in any way -. B. translational or rotary - be realized by which a relative movement is effected with at least one relative to the counter-pressure cylinder axis radial component of motion or is effected. In here preferred embodiment, the drive device 88 and corresponding storage means 89 However, executed and arranged such that the standing for the unloaded contact contact screen printing form 43 out of this position leading adjusting movement in about, ie with a maximum deviation of at most 15 °, preferably of at most 10 °, in the radial direction of the impression cylinder 06 runs. Although this movement can be carried out in a variant by a linear movement with appropriately designed bearing means. In a preferred here, by simple means and a large travel enabling design is carried out for the pivoting movement to a counter-pressure cylinder 06 axis-parallel pivot axis S2 , Preferably, this is the screen printing form 43 or the screen printing cylinder 04 carrying frame 61 is about the impression cylinder 06 axis-parallel pivot axis S2 pivoted. Appropriate storage means 89 are then for example by a bolt 89 , an over the frame width continuous axis 89 or a stub axle 89 educated.

To fulfill the above condition to those in the area of the Nippstelle 03 present adjustment direction and the possibility of a large travel an above maintenance and / or set-up L _R is the pivot axis S2 advantageous in one plane e that a touch line L2 comprises, which is given in the Nippstelle by just touching in the unloaded state Druckform- and counter-pressure cylinder jacket surface, and at most by 10 ° inclined to the line of contact L2 comprehensive tangent plane T the undisturbed Gegenruckzylindermantelfläche runs. Here is the distance of the pivot axis S2 to Rundsiebrotationsachse R43 preferably greater than the length of the outer radius r43 the undisturbed screen printing form 43 ,

A respective end frame wall of the movable, in particular pivotable frame 61 the screen printing device 86 can by the z. In 4 illustrated frame wall 59 , z. B. the side panel 59 , even or through the side panel 59 comprehensive multi-part sidewall 92 be formed. For example, this may be the storage facility 53 supporting side part 59 detachable on a frame wall 93 , z. B. a stronger frame plate 93 , the frame 61 be attached and together with this of the multipart sidewall 92 includes his. The middle or immediate the screen printing form 43 carrying frame 61 includes next to the one- or multi-part sidewalls 92 one or preferably several cross braces 94 ; 96 ; 97 which, for example, by one or more trusses 96 and / or by one or more axes or waves 94 (see below) and / or through one or more axial guides 97 (see below) can be formed.

The the frame 61 pivoting drive device 88 is between a respect to the screen printing device 86 frame-fixed point of attack 98 and a spatially fixed, for example. With respect to the printing unit frame 83 , fixed point of attack 99 effective. For example, the attack point 98 on the side of the screen printing device 86 by a coupling to a relative to the screen printing device 86 fixed to the frame and parallel to the screen form 43 be given extending axis of rotation. This can be achieved by a rotatable coupling to a relative to the screen printing device 86 frame-fixed axis 94 or by a rotationally fixed coupling to a rotatably mounted on the frame 61 stored wave 94 be realized. Preferably, each end face a drive device 88 be provided, which both on a shaft extending from one to the other side 94 , z. B. synchronous shaft 94 attack. The coupling of the drive device 88 included drive means 87 can be on the output side via one or more transmission and / or transmission mechanism 101 , for example via a lever mechanism 101 (see eg 11 ), or - except for possibly provided output-side extension elements - directly (see eg 12 ) respectively.

In a first embodiment of the drive device 88 this includes one by the drive means 87 operable lever mechanism 101 , in particular toggle mechanism 101 with a first swingarm 102 and a rotatably connected with this second rocker 103 , wherein the respective free ends of these wings 102 ; 103 at the above attack points 98 ; 98 are defined (see, for example, 12 ). The drive means 87 could basically be on one of the wings 102 . 103 attack, but acts in the case described here via a lever arm 104 on the one with the wings 102 . 103 rotatably connected shaft 94 , Depending on the operating condition BZ _D ; BZ _A ; BZ _R of the drive means 87 , z. B. piston-cylinder system 87 , that's through the wings 102 ; 103 trained toggle more or less angled, so that for the three correspondingly provided operating conditions BZ _D ; BZ _A ; BZ _R the three above-mentioned layers L _A ; L _D ; L _R for pressure on, pressure off and set up or wait can be realized.

In a second, z. B. in view of a less complex mechanism advantageous embodiment of the drive device 88 is the driving means 88 on both sides - possibly via an output side and / or a fixed point extension - directly, ie without further movement mechanisms, to the points of attack 98 ; 99 coupled. Here, the three operating conditions present on the output side BZ _D ; BZ _A ; BZ _R again the three above-mentioned layers L _A ; L _D ; L _R ,

In addition to the at least two, in particular the at least three layers L _A ; L _D ; L _R for turning on and off the screen printing form 43 causing drive device 88 is a positioning drive in an advantageous embodiment 106 comprehensive positioning device 107 for remote-controlled and / or remotely controllable adjustment and / or variation of the defined pressure-on position L _D intended. The positioning drive 106 can affect the location of the storage of the screen printing cylinder 04 relevant radial bearing or the position of a member of the on and off relevant drive means 88 (see eg 12 ) act or on a stop element 108 one of the positioning 107 included the adjusting motion in the desired pressure-on-position " L _D "Limiting stop device 109 (see eg 12 ).

By the positioning device 107 and the positioning drive 106 is the center distance a z. B. at least by at least 0.1 mm, preferably by at least 0.2 mm, possibly even by 0.3 mm and more, variable. As a result, adjustments to variable printing substrate thicknesses and possibly varying screen thicknesses and / or slightly varying outer diameters of the screen printing form 43 possible.

The pressure-on-position " L _D "Can be chosen so that just just touch between round screen 43 and impression cylinder 06 takes place, which is also referred to as a so-called "Kissprint". Alternatively, however, for the print-on-lay " L _D "Also an axial distance a be chosen so in print-on-location " L _D "The screen printing form 43 but deactivated squeegee 43 a distance greater than zero between round screen 43 and impression cylinder 06 is present. The round screen 43 touched only when employed and biased position of the doctor 43 by slight deformation of the impression cylinder 06 ,

In the case of the first embodiment of the drive device 88 (see eg 11 ) can the positioning drive 106 For example, a change in length for one of the two wings 102 ; 103 cause, for example, by itself as a rocker or part of the swingarm 102 ; 103 acts and is variable in its longitudinal extent between frame-fixed and abtriebseitigem end.

In the case of the second embodiment of the drive device 88 (see eg 12 ) can the positioning drive 106 as a stopper 108 be performed stellender actuator. For example, the positioning drive moves 106 a wedge-like stop 108 designed as a wedge drive stop device 109 that with a second wedge-like stroke 111 works together. One of the two stop elements 108 ; 111 is now with respect to the frame 61 the screen printing device 86 operationally fixed to the frame and the other operationally fixed in space, in particular with respect to the printing unit frame 83 fixed to the frame. For adjusting the stop device 109 is one of the stop elements 108 ; 111 in type of wedge drive relative to the other adjustable.

The positioning device 107 and the positioning drive 106 are preferably designed and set up, at least within an operational minimum setting range, for example of a resulting variation of the axial spacing a to z. B. at least 0.2 mm, but at least equal to at least 0.1 mm, to allow continuous placement. This continuous placement is fundamentally due to the most varied configurations of the positioning drive 107 to realize, for example, via a rack, which by a z. B. electric motor driven pinion is moved. In here exemplified and preferred embodiment of the positioning drive 106 but as a motor spindle drive 106 formed, wherein the spindle gear comprising the spindle and the spindle driving motor, in particular electric motor, can be combined in a unit as spindle linear drive.

In a particularly advantageous embodiment of the screen printing stage 02 and / or the screen printing device 86 is the screen printing form 43 or the screen printing form 43 carrying screen printing cylinder 04 in total and / or an end-side storage facility 112 the screen printing form 43 axially relatively movable to the impression cylinder 06 arranged. Preferably, the two are the screen printing form 43 frontally receiving storage facilities 112 axially movable in the printing unit frame 83 or preferably in the above frame 61 the overall relative to the impression cylinder radially relatively movable screen printing device 86 arranged. The frontal storage facilities 112 For this purpose, for example, in or on frontal support elements 113 , z. B. side wall 113 , received or arranged, which in turn on one or preferably at several axially extending cross braces 97 , in particular axial guides 97 are stored. The two support elements 113 could be connected together axially and form a common movable frame. Preferably, the two support elements 113 but axially independently and separately movable. A movement can be done manually or via respective, not shown axial drives or be effected.

In particular for the case of manually moving and / or movable support elements 113 can mean 114 , z. B. clamping devices 114 be provided to lock the current position.

Thus, z. B. on a frame 83 ; 61 which passes through the printing unit frame 83 or preferably by a translationally or rotationally movable, in particular swing-away subframe 61 may be formed, medium or directly the screen printing cylinder 04 stored. It is z. B. on the frame 83 ; 61 which passes through the printing unit frame 83 itself or also preferred by the above-mentioned subframe 61 may be formed, directly or indirectly, the above-mentioned storage facility 53 arranged. The latter can be directly on the screen printing cylinder 04 medium or directly storing the same frame 83 ; 61 , z. B.an og frame plate 93 , or indirectly via frame walls 59 at one the screen printing cylinder 04 medium or directly overlapping frame part, z. B. on og frame plate 93 be arranged.

In a development of the printing unit 02 in which the squeegee 44 and / or the squeegee 44 medium or immediate bearing storage facility 53 on rack walls one of the screen printing cylinder 04 medium or directly overlapping frame 61 ; 83 different subframe, z. B. on frame walls 59 , stored, this can be the squeegee 44 and / or the squeegee 44 medium or immediate bearing storage facility 53 supporting subframe relative to the screen printing cylinder 04 stored rack 61 ; 83 be movably mounted. In this case, in addition to the arrival and Abstellbewegung enabling storage the squeegee 44 medium or direct supporting storage means 122 ; 123 provided over which the squeegee 44 so relatively movable to the round screen 43 stored in the machine, so that the position of the contact line between doctor blade edge and screen printing 43 in Rundsiebinnern in or opposite to the present in the direction of rotation is variable.

The variability or mobility can z. B. in a tangential, an inclined towards the Innentangente direction or in the circumferential direction, in particular along an Innentangente or an inner circumferential line section, but at least be given along a direction with at least one component of movement in the inner circumferential direction of the screen printing form.

The storage facility 53 is this preferred together with the arrival and Abstellbewegung effecting drive device 74 on an above-mentioned frame wall 59 stored, which, however, contrary to the above, not fixed, but in the manner of a movable bearing plate 59 opposite the screen printing cylinder 04 medium or directly overlapping frame wall 93 is mounted relatively movable.

In a first embodiment, the bearing device 53 including drive device 74 supporting frame wall 59 at the screen printing cylinder 04 medium or directly overlapping frame wall 93 be moved back and forth along a rectilinear, preferably substantially horizontal, travel (see, for example, schematically 14 ). The substantially horizontal travel differs z. B. by a maximum of ± 5 ° from the horizontal. For the directional movement, a rack wall 59 on the adjustment mandatory guidance device 122 . 123 , in particular one between the frame walls 59 ; 93 effective rolling or sliding bearing guide 122 . 123 , be provided. This can, for example, by appropriate storage means 122 ; 123 , z. B. as on one of the frame walls 59 ; 93 arranged rolling elements 122 for example, roles 122 , and through at the other of the rack walls 93 ; 59 arranged guides 123 or running surfaces 123 be formed.

In a second embodiment, the bearing device 53 including drive device 74 supporting frame wall 59 at the screen printing cylinder 04 medium or directly overlapping frame wall 93 along a circular arc-shaped, in particular concentric to the screen cylinder axis extending, to be movably mounted (see, for example, schematically in FIG 15 ). As a result, when varying the Berührlinienlage neither a squeegee angle nor a Anstelllage must be corrected, the squeegee orientation with respect to the employment of the screen printing forme 43 remains. The storage facility 53 including drive device 74 supporting frame wall 59 Can on the the screen printing cylinder 04 medium or directly overlapping frame wall 93 be pivoted. This can be done by pivoting a bearing device 53 carrying lever (as storage means 122 ) around one on the frame wall 93 mounted axle (as storage means 123 ) or as above by a between the frame walls 59 ; 93 effective rolling or sliding bearing guide 122 . 123 be realized. In contrast to the first embodiment, however, the rolling or sliding elements do not interact with rectilinear surfaces, but with surfaces running concentrically with the circular sieve axis.

In a third embodiment, the bearing device 53 including drive device 74 supporting frame wall 59 at the screen printing cylinder 04 medium or directly overlapping frame wall 93 along a circular arc-shaped, in particular concentric to the counter-pressure cylinder axis extending, be movably mounted. In this case, the squeegee orientation remains with respect to the employment of the impression cylinder 06 obtained, with the screen printing form 43 is deformed in the region of its circumferential line.

The above-mentioned arcuate versions of the travel or the associated guides can also be approximately realized by his against the Innentangente the undisturbed circle at the place of first touch inclined rectilinear travel ranges or guides.

Regardless of the embodiment, a drive device is preferred 124 provided by which the squeegee 44 or the doctor blade holder 43 relative to the round screen 43 , in particular the bearing device 53 including drive device 74 supporting frame wall 59 relative to the screen printing cylinder 04 medium or directly overlapping frame wall 93 , is movable. The contact line varying drive means 124 can basically as a manually operated drive or alternatively as remotely operated by a drive means 126 be executed to be set drive. In both cases, the drive can be done via a - for example, self-locking - worm gear.

Varying the Berührlinienlage is alone, but also in particular together with one or more of the above solution ideas, such. As the embodiments of the doctor angle adjustment and / or for rectilinear and / or independent on and off, advantage.

In a preferred embodiment of the screen printing stage 02 and / or the screen printing device 86 is the screen printing cylinder 04 rotatory by one of the rotary drive of the impression cylinder 06 mechanically independent; especially as a drive motor 116 executed drive means 116 , For example, an electric motor 116 , in particular an electric servo drive 116 , grated. The drive takes place in this case for example via a continuous or connected via an axial offset compensating coupling split shaft 117 , z. B. gear shaft 117 , on which preferably in the region of both Siebdruckzylinderstirnseiten one each preferably as a gear 118 trained drive wheel 118 rotatably and axially movably received. From this is medium or possibly directly over another, preferably as a gear 119 executed intermediate wheel 119 on with the rotatable part of the storage facility 112 rotatably connected, preferably in the manner of a gear 121 or gear wreath 121 executed drive wheel 121 abortion.

Particularly advantageous is the execution of the screen printing stage 02 with a screen-printing cylinder 04 mechanically independent of the rotary drive of the impression cylinder 06 driving drive means 116 and one on and off the squeegee 44 causing drive device 74 with one of the rotary drive of the screen printing and the impression cylinder 04 ; 06 mechanically independent drive means 56 in connection with a machine with at least one further printing stages operating according to another printing method 09 ; 09 ' , In particular, at least one additional the printed image in direct printing on the substrate B transferring and / or operating in gravure or high-pressure or a digital printing process printing stage 09 ; 09 ' in the substrate path. The screen printing stage 02 and the further printing stage 09 ; 09 ' can processing stages of an online processing of upstream, for example, by one or more operating according to an offset printing stages 07 be or in an advantageous in terms of effectiveness execution as processing stages of a multi-stage processing, in particular finishing machine 01 For offline further processing or refinement of previously printed in the offset process substrate sheet B be educated.

As operating according to a high-pressure process printing stage 09 may be used instead of or in addition to a flexographic printing stage 09 an operating according to a tampon direct printing method and / or a direct printing stamp method printing stage 09 be provided in the Bedruckstoffweg. Instead of or in addition to a printing stage operating in gravure printing or high-pressure or a digital printing process 09 ; 09 ' can be used as another printing stage operating according to a direct digital method 09 instead of or in addition to one after the inkjet or Ink jet process printing stage a working on a thermal transfer direct printing process printing stage 09 ' be provided.

The said direct printing method has in common that by using specific printing fluid and / or by the type of application, it can produce a particularly effective and / or individual processing, in particular finishing, of already printed substrate sheets in offset printing B allow. The effects to be achieved relate, for example, to special gloss effects, particularly high resistance and / or haptics that differ from offset printing. This makes possible a particularly high-quality and effective design of the product surface.

By the impression cylinder 06 independent rotary drive and the mechanically independent squeegee drive, the screen printing stage 02 be actively involved independently of the sheet transport, in standby mode or completely deactivated.

The impression cylinder 06 the screen printing stage 02 can in a preferred embodiment by a sheet transport causing, from the drive of the screen printing cylinder 04 mechanically independent drive means 127 , z. B. a drive motor 127 , be driven (see, for example, schematically in 1 and 2 indicated). In particular, the drive of the impression cylinder takes place 06 the screen printing stage 02 through the drive motor 127 in one by the drive motor 127 driven drive train, in particular in a gear train, together with at least one adjacent in the Bedruckstoffweg cylinder 33 , in particular a transfer drum 33 , The drive coupling between impression cylinder 06 and transfer drum 33 For example, via intermeshing gears 128 ; 129 (see eg 13 and 9 ). In a preferred embodiment, the drive of the impression cylinder takes place 06 the screen printing stage 02 but not only together with at least one transfer drum 33 but together with this and with the substrate B through the bruise with the editing tool 29 promotional cylinder 24 , z. B. transfer cylinder 24 the further provided in the printing material, the further processing or processing serving printing stage 09 ; 09 ' , This is z. B. at least from the gear 128 the impression cylinder 06 the screen printing stage 02 to a gear, not shown, of the transfer cylinder 24 the further printing stage 09 ; 09 ' a gear train of intermeshing, preferably helical gears running 128 ; 129 educated.

By the screen printing stage 02 - As stated above - is suitable, printing material sheet B different format length without color residue on the cylinders 04 ; 06 are to be printed, is the machine running in particular as a processing or in particular finishing machine 01 especially suitable for high-quality finishing.

Due to the independent rotary drive of the screen printing cylinder 04 Depending on the nature and extent of the finishing, a further processing using screen printing or further processing without screen printing, z. B. only by high pressure to be applied lacquer and / or by - preferably individualizing or changing - impressions in digital printing in a simple manner without complex mechanics or conversions possible. In the case of a low-pressure or high-pressure plant 09 trained further printing stage 09 can also be its imaging cylinder 29 , z. B. form cylinder 29 , by a further drive motor mechanically independent of the transfer cylinder 24 the relevant printing stage 09 or from the transfer cylinder 24 be driven driving drive train. In this case, a screen printing is then independent of the activation of the further printing stage 09 possible. In the case of the particular direct digital printing, z. As inkjet or inkjet printing, its independence is given in any case.

In the execution as a pure further processing or finishing machine 01 is the pressure levels 02 ; 09 ; 09 ' preferably a above, the substrate surface cleaning conditioner 08 provided, the z. B. as a cleaning step 08 is executed and / or comprises a suction means and / or a blowing agent and / or a mechanical stripping. The conditioning stage 08 differs in particular from the printing stages 02 ; 09 ; 09 ' in that it does not carry pressurized fluid and / or is carried out without a pressurized fluid reservoir or pressurized fluid supply device.

LIST OF REFERENCE NUMBERS

01

Machine, finishing machine, finishing machine

02

Processing stage, printing stage, printing unit, printing unit stage, rotary printing unit, screen printing unit, screen printing unit, screen printing stage, rotary screen printing unit

03

bruise

04

Printing cylinder, forme cylinder, screen printing cylinder, processing tool

05

-

06

Printing cylinder, impression cylinder, conveyor, rotating body, cylinder, drum

07

Processing level, printing stage, printing unit, offset printing stage, offset printing unit

08

Processing stage, conditioning stage, cleaning stage

09

Processing level, printing stage, printing unit, coating unit, flexographic printing stage, flexographic printing unit, flexo coating unit, gravure printing or high-pressure printing stage

09 '

Processing level, printing stage, printing stage, printing unit, inkjet printing stage

10

-

11

Processing stage, conditioning stage, dryer

12

Opening, inspection and / or maintenance hatch

13

Substrate feeder, substrate, feeder

14

Substrate delivery device, delivery, product delivery

15

-

16

Transport route, delivery extension, processing level

17

Processing stage, conditioning stage, radiation dryer, dryer, UV dryer

18

Device for quality control

19

Plant, sheetfed, alignment device

20

-

21

conveyor line

22

Arc accelerator, swinging grapple

23

Conveyor, transfer drum, feed drum

24

Conveyor, rotating body, cylinder, transfer cylinder, drum

25

-

26

Conveyor, rotating body, cylinder, drum

27

-

28

-

29

Machining tool, cylinder, printing cylinder, forme cylinder

30

-

31

Machining tool, cleaning tool, calender roll

32

Holding means, holding device, gripper system

33

Conveyor, rotating body, cylinder, transfer drum

34

Holding means, holding device, gripper system

35

-

36

Conveyor, rotating body, cylinder, drum

37

Machining tool, radiation source, IR radiation source

38

Conveyor system, chain conveyor system

39

Traction means, chain

40

-

41

Drive and / or guide wheel

42

Pressure fluid applicator, inking unit

43

Printing form, round screen, screen printing form

44

doctor

45

-

46

grab

47

Recess, pit

48

Cylinder barrel section, saddle, saddle

49

Dyeing aid, flap

50

-

51

doctor device

52

squeegee blade

53

Storage facility

54

Doctor carrier, traverse

55

-

56

Drive means, motor, electric motor, servomotor

57

Drive means, motor, electric motor, servomotor

58

Doctor blade, doctor blade holder

59

Side part, frame wall, bearing plate

60

-

61

Frame, subframe

62

signal connection

63

signal connection

64

control device

65

-

66

Control means, first; control module

67

Control means, second; control module

68

Bearing means, lever arm

69

lever

70

-

71

Drive device, drive, motor spindle drive

72

Point of attack, fulcrum

73

Point of attack, fulcrum

74

Drive device, drive, spindle drive, ball screw drive, linear drive

75

-

76

Phase position sensor, master axis encoder, sensors, master axis

77

Planning and / or management level

78

pressure range

79

pressure strips

80

-

81

Storage equipment, sledges

82

Bearing means, guide, linear guide

83

Frame, frame part, printing unit frame

84

frame wall

85

-

86

Screener

87

Drive means, fluid-operated actuator, cylinder-piston system

88

Drive device, linear drive, spindle drive

89

Bearing means, bolt, axle, stub axle

90

-

91

Bearing means, bolts, stub axle

92

Side wall ( 61 )

93

Frame wall, frame plate

94

Cross brace, axle, shaft, synchronous shaft

95

-

96

Cross brace, Traverse

97

Cross brace, axial guide

98

attackpoint

99

attackpoint

100

-

101

Transmission and / or transmission element, lever mechanism, toggle mechanism

102

Swingarm, first

103

Swingarm, second

104

lever arm

105

-

106

Positioning drive, spindle drive

107

positioning device

108

Stop element, stop

109

stop device

110

-

111

Stop element, stop

112

Storage facility

113

Supporting element, side wall

114

Means for locking, clamping device

115

-

116

Drive means, drive motor, electric motor, servo drive

117

Shaft, gear shaft

118

Drive wheel, gear

119

Intermediate gear

120

-

121

Drive wheel, gear, ring gear

122

Bearing means, roll

123

Bearing means, guide, tread

124

driving means

125

-

126

drive means

127

Drive means, drive motor

128

gear

129

gear

a

Wheelbase

a _s

distance

a _AB

distance

a _AN

distance

a ' _AN

distance

r43

outer radius

"FROM"

Parking position ( 44 ; 52 )

"AT"

Anstelllage ( 44 ; 52 )

B

Substrate, substrate, substrate sheet

B '

Substrate, substrate, substrate sheet, processed

BZ _AB

Operating condition ( 44 ; 52 )

BZ

Operating condition ( 44 ; 52 )

BZ _AN

Operating condition ( 44 ; 52 )

BZ ' _AN

Operating condition ( 44 ; 52 )

e

level

F

Pressurized fluid (paint or varnish)

F.1

Substrate format, format, first

F.2

Substrate format, format, second

G

Straight ("inner tangent")

I _B

information

L1

Touch line ( 43 . 44 )

L2

Touch line ( 06 . 43 )

L _A

Position, pressure-off position ( 04 ; 43 )

L _D

Position, pressure-on-position ( 04 ; 43 )

L _R

Position, maintenance and / or set-up position, cleaning position ( 04 ; 43 )

L _Z

cycle length

L _S1

Bedruckstoffläge

L _S2

Bedruckstoffläge

P

contact point

P _AN

Phase, starting phase

P _AB

Phase, shutdown phase

R04

Rotation axis ( 04 )

R06

Rotation axis ( 06 )

R43

Rundsiebrotationsachse

S1

swivel axis

S2

swivel axis

T

tangent

U _D

Peripheral section (can be used for printing)

U _N

Peripheral section (disturbed or not usable for printing)

V

intersection

Z ₁

cycle

Z ₂

cycle

α

Angle, squeegee angle

Φ _M

Machine and / or printing material phase position

Claims (15)

Printing unit (02) of a printing machine (B) on at least one printing unit (03) by a screen printing process printing machine with a form of a screen printing cylinder (04) form cylinder (04), with a screen printing cylinder (04) forming an abutment and holding means (32 ) for holding the sheet-shaped printing material (02) comprising impression cylinder (06) and with a doctor device (51), comprising - as a round screen (43) formed screen printing form (43), - a doctor blade (44) for a Anstelllage ("AN ") With a doctor edge against the screen printing plate (43) can be adjusted, - an on-and-Abstellbewegung between the Anstelllage (" ON ") of the doctor blade (44) and a storage position (" AB ") enabling storage facility (53), a squeegee (44) correlates to a machine or printing material phase position (Φ _M ) on the screen printing form (43) and abstellende drive means (74), wherein in addition to the arrival and Abstellbewegung enabling n storage the squeegee (44) medium or directly supporting bearing means (122; 123) are provided, via which the doctor blade (44) is mounted so relatively movable to the round screen (43) in the machine, so that the position of the contact line between blade edge and screen printing form (43) is variable in Rundsiebinnern in or opposite to the operating direction of rotation, characterized in that the up and down movement between the Anstelllage ("ON") of the doctor blade (44) and a storage position ("AB") enabling storage device (53) together with the arrival and Abstellbewegung effecting drive means (74) on a Rack wall (59) is mounted, which relative to a screen printing cylinder (04) medium or directly overlapping frame wall (93) is mounted relatively movable. Printing unit after Claim 1 , characterized in that the bearing device (53) together with the drive device (74) carrying frame wall (59) on the screen printing cylinder (04) medium or directly overlapping frame wall (93) is movably mounted along a rectilinear travel. Printing unit after Claim 1 , characterized in that the bearing device (53) together with the drive device (74) carrying the frame wall (59) on the screen printing cylinder (04) medium or directly overlapping frame wall (93) is movably mounted along a circular arc-shaped travel. Printing unit after Claim 3 , characterized in that the bearing device (53) together with the drive device (74) carrying the frame wall (59) on the screen printing cylinder (04) medium or directly overlapping frame wall (93) along a is mounted concentrically to the screen cylinder axis extending travel movable Printing unit after Claim 2 . 3 or 4 , characterized in that as a bearing center (122, 123), a frame wall (59) is provided on the travel guide mandatory. Printing unit after Claim 3 or 4 , characterized in that the bearing means (53) including drive means (74) carrying the frame wall (59) on the screen printing cylinder (04) medium or directly overlapping frame wall (93) is pivotally mounted. Printing unit after Claim 3 or 4 , characterized in that a drive device is provided, by means of which the bearing device (53) together with the drive device (74) carrying frame wall (59) relative to the screen printing cylinder (04) medium or directly overlapping frame wall (93) is movable. Printing unit after Claim 1 . 2 . 3 . 4 . 5 . 6 or 7 , characterized in that the bearing device (53) comprises a squeegee (44) medium or directly supporting bearing means (68) which is pivotable about a pivot axis (S1) and during pivoting a change of a between a doctor blade (52) of the doctor blade (44) and the screen printing plate (43) formed doctor angle (a) causes. Printing unit after Claim 8 , characterized in that the storage means (68) of the storage device (53) is so covered that it is moved with variation of the position of the contact line with the doctor blade (44). Printing unit after Claim 8 or 9 , characterized in that a lever arm (68) of a one-arm or multi-arm lever (69) is provided as the doctor blade (44) and directly or pivotally supportable bearing means (68) and / or that the pivot axis (S1) of the bearing means (68) 68) coincides with a theoretical contact line (L1), which is given by a line running in the unloaded state of contact of the doctor blade (44), ie in the state of first contact of the screen printing plate (43) with the doctor blade edge without additionally impressed doctor blade pressing. Printing unit after Claim 1 . 2 . 3 . 4 . 5 . 6 . 7 . 8th . 9 or 10 , characterized in that the drive means (74) comprises a drive means (56) by which the arrival and Abstellbewegung the doctor (44) correlated to the machine or printing material phase position (Φ _M ) mechanically independent of a rotary drive of the screen printing form and of a the printing material (B) conveying means (06) can be effected. Printing unit after Claim 11 , characterized in that the doctor (44) overlapping bearing means (53) and the drive means (56) is adapted to vary the stroke of arrival and Abstellens and the Anstelllage end position on the control of the drive means (56). Printing unit after Claim 11 or 12 , characterized in that by the drive means (56) within a setting range, the positions of the doctor blade edge in at least a minimum range between a Abstelllage ("AB") representing operating state (BZ _AB ) and a spaced therefrom Anstelllage ("AN") corresponding operating state (BZ _AN , BZ ' _AN ) corresponds to a continuous placement on intermediate states is effected. Printing unit after Claim 1 . 2 . 3 . 4 . 5 . 6 . 7 . 8th . 9 . 10 . 11 . 12 or 13 , characterized in that the bearing device (53) bearing means (81, 82), through which, at least within a anstelllage ("ON") and a Abstelllage ("AB") comprehensive adjustment range the placement of the doctor blade (44) along a rectilinear Actuating movement takes place. Printing unit after Claim 14 , characterized in that the linear bearing means (81, 82) in the bearing device (53) are arranged and oriented to at least within a Anstelllage ("ON") and a Abstelllage ("AB") comprising the adjustment range of the squeegee (44) extends along a in the unloaded contact state, ie in the state of first contact of the screen printing plate (43) without additionally imprinted doctor blade pressing, extending longitudinal extent of the doctor blade (44) covered doctor blade (52).

Images