DE102008002640A1 - Plate cylinder for rotary printing press, has spring plate and/or retaining device arranged in sections for fixing of forward-moving chamfer and/or running chamfer such that spring plate exerts force aligned on edge of cylinder channel - Google Patents

Abstract

The cylinder (13) has printing plates arranged in a set of sections, and a retaining device (15) provided in a cylinder channel (14). A spring plate and/or the retaining device is arranged in each section for fixing of a forward-moving chamfer and/or a running chamfer of the printing plates in such a manner that the spring plate exerts force aligned on an edge (27) of the cylinder channel and/or on the forward-moving chamfer for fixing of the forward-moving chamfer. The running chamfer runs through an opening (18) and is inserted into the cylinder channel.

Description

The The invention relates to a forme cylinder of a rotary printing press according to the preamble of claim 1.

From the WO 2008/025584 A1 a form cylinder of a printing press is known. The forme cylinder has two diametrically opposed, extending in the axial direction of the forme cylinder cylinder channels, which serve for hanging of printing plates on the forme cylinder. The cylinder channels have an edge to which the leading edge of the printing form mounted when Aufplatten the printing form and before the leading edge of the printing plate is suspended in the Abplatten the printing plate. Furthermore, holding devices are provided in the cylinder channels, which comprise a pneumatically actuated clamping plate, by means of which a printing form which can be clamped and / or jammed can be clamped or clamped with a trailing fold introduced through the opening into the cylinder channel. The Aufplatten the printing form takes place in such a way that after attaching the leading edge of the printing plate to the edge of the cylinder channel, a rotational movement of the forme cylinder takes place such that the printing plate is mounted on the forme cylinder. During this process, the printing form is pressed by means of a pressure roller on the lateral surface of the forme cylinder. Once the trailing edge of the printing form has reached a cylinder channel of the printing plate, the trailing edge is inserted into the cylinder channel and clamped therein by means of the holding device.

Of the Invention is based on the object, a forme cylinder of a rotary printing press to accomplish.

The The object is achieved by the features of claim 1.

The particular advantages of the invention are that the pressure plate with the leading edge of one or more spring plates is held and thus reliable in the respective cylinder channel is fixed. During the Aufplattens the printing form is held in the region of their leading edge by the one or more spring plates, so that exact positioning and registering each individual printing form is ensured.

One Another advantage of the invention is that it is in the Spring element to a comparatively easy to manufacture and mountable component is that simple beyond that to handle.

One Embodiment of the invention is in the drawings and will be described in more detail below.

It demonstrate:

1 a schematic side view of a printing tower;

2 a schematic representation of a folding door with arranged thereon footswitches of the printing tower 1 in a plan view;

3 a schematic representation of a cylinder channel of a forme cylinder of a printing press in a cross section;

4 a schematic representation of a cylinder channel with spring plate of a forme cylinder of the printing tower 1 in a cross section;

5 a schematic representation of a on a forme cylinder of the printing tower 1 arranged buttons in a perspective view;

6 a schematic representation of a roller bar and a forme cylinder of the printing tower off 1 in a perspective view;

7 a schematic representation of a roller bar and a forme cylinder of the printing tower off 1 during a step of the flattening operation in a cross section;

8th a schematic representation of a roller bar and a forme cylinder of the printing tower off 1 during another step of the flattening operation in a cross section;

9 a schematic representation of a roller bar and a forme cylinder of the printing tower off 1 during another step of the flattening operation in a cross section;

10 a schematic representation of a roller bar and a forme cylinder of the printing tower off 1 during another step of the flattening operation in a cross section;

11 a schematic representation of a closure strip in a perspective view;

12 a schematic representation of the closure strip 11 in a perspective rear view;

13 a schematic representation of a forme cylinder of the printing tower 1 before fixing the leading edge of the printing form zwi rule clamping plate and edge of the cylinder channel of the forme cylinder;

14 a schematic representation of a forme cylinder of the printing tower 1 after fixing the leading edge of the printing form between the clamping plate and the edge of the cylinder channel of the forme cylinder;

15 a schematic representation of a forme cylinder of the printing tower 1 before clamping the trailing edge of the printing plate by means of the arranged in the cylinder channel of the forme holding device.

1 shows a printing tower 01 , This includes eight printing units 04 ; 05 , of which in each case four printing units 04 ; 05 to H-printing units 08 are grouped. The printing tower 01 is thus as a four-tower 01 executed in H-construction. How out 1 can be seen, includes the printing tower 01 two superimposed H-pressure units 08 ,

The printing works 04 ; 05 are arranged in a total of four levels, with each level two printing units 04 ; 05 on opposite sides of a web to be printed 03 face so that these from the mutual transfer cylinders 06 ; 07 the printing works 04 ; 05 is printed.

The printing tower 01 has folds 09 on, each H-pressure unit 08 on both outer sides 11 ; 12 or lateral 11 ; 12 of the printing tower 01 are arranged. The folding steps 09 have on the one hand the task that the plate changer or other elements of the printing tower 01 for the serving staff are to be reached well, and on the other hand the function that they certain buttons 10 or other controls may be used to operate the printing tower 01 or its elements are required. The buttons 10 can as a footswitch 10 be executed. For example, it is conceivable that the in 2 displayed button 10 of the folding steps 09 serve to raise and lower one or more pressure rollers 22 or one or more pressure rollers 22 having roll bars 21 to control.

It is conceivable that the buttons 10 , which are the printing units shown on the left 04 the H-pressure units 08 are assigned, in or on the left side 11 at the printing tower 01 arranged, each pivotable about a horizontal axis folding steps 09 are arranged, and that the buttons 10 , which are the printing units on the right 05 the H-pressure units 08 are assigned, in or on the right side 12 at the printing tower 01 arranged, each pivotable about a horizontal axis folding steps 09 are arranged.

Like this 2 shows, is the button 10 each folding step 09 twice available to print at several times 23 wide form cylinder 13 From each axial operating position, one or both of the buttons 10 ergonomically favorable to achieve. One button each 10 can control the lifting and lowering of each pressure roller 22 or per group of pressure rollers 22 or roller bar 21 be provided.

The folding steps 09 can have the further function that pivoting the folding steps 09 from a folded-up rest position into a folded-down functional position simultaneously actuates a function assigned to a step associated function switch or button, which can serve, for example, to protect the area.

Each of the in 1 illustrated printing units 04 ; 05 is each with a form cylinder 13 executed, on its outer surface one or more printing plates 23 , in particular printing plates 23 wearing. Each of the form cylinder 13 is assigned to a disc changer.

Serves the form cylinder 13 for receiving two in the circumferential direction of the forme cylinder 13 arranged printing forms 23 , shows the form cylinder 13 two cylinder channels 14 on, which are preferably spaced diametrically opposite in the circumferential direction. However, the invention is not based on such form cylinder 13 limited, but also includes embodiments with only one cylinder channel 14 or with more than two cylinder channels 14 ,

Such a cylinder channel 14 is in 3 shown. 3 shows a cylinder channel 14 having partial region of a forme cylinder 13 , The cylinder channels 14 serve to accommodate leading and trailing bends 24 ; 25 of two circumferentially arranged printing plates 23 , In the axial direction, preferably four or six printing plates 23 side by side on each form cylinder 13 be arranged so that each forme cylinder 13 for example, a total of eight or twelve printing forms 23 can wear or wear.

For manual, tool-free mounting or removal of a flexible printing plate 23 on or from a forme cylinder 13 is in the cylinder channels 14 depending on the form cylinder 13 in the axial direction next to each other can be arranged printing form 23 at least one preferably pneumatically actuated holding device 15 arranged. These holding devices 15 each have a clamping plate 16 , which under a spring load against an edge 17 one to the cylinder channel 14 leading opening 18 is pressed. The holding devices 15 also have a preferably pneumatic actable actuating means 19 , z. B. a bellows 19 or hose which at a pneumatic loading the clamping plate 16 against the spring load from the edge 17 abpresses, for example, a trailing edge 25 a printing form 23 when releasing plates or a trailing edge 25 a printing form 23 in the space between clamp 16 and edge 17 to be able to insert with the Aufplatten.

Like this further 3 shows, the opening becomes 18 further by the edge 27 bounded, which deviates from the edge 17 not in the radial direction of the forme cylinder 13 but extends at an angle. The edges 17 and 27 thus do not run parallel to each other, but have a distance from each other, which, starting from the lateral surface of the forme cylinder 13 increased. The edge 27 serves to mount a leading edge 24 the printing form 23 ,

4 shows a cylinder channel 14 an executed forme cylinder 13 , The design and arrangement of the holding device 15 corresponds to the 3 explained so that so far on 3 Reference is made. Notwithstanding the known embodiment according to 3 has the cylinder channel 14 according to 4 a spring plate 32 on, one on the edge 27 the opening 18 of the cylinder channel 14 directed force exerts one between spring plate 32 and edge 27 recorded leading edge 24 a printing form 23 to hold force-locking. Like this 4 and 14 further, the spring plate lies 32 not flat at the leading edge 24 the printing form 23 but punctiform or in the case of one in the longitudinal direction of the cylinder channel 14 extending spring plate 32 line or strip. Instead of in 4 and 14 illustrated embodiment may alternatively be provided that the spring plate 32 at several positions on the leading edge 24 the printing form 23 rests or that several spring plates 32 are provided, which at different positions with the leading edge 24 the printing form 23 point, line or strip-like communicate.

It is conceivable that each printing form 23 or one each for receiving a leading edge 24 the printing form 23 provided cylinder channel 14 or section of a cylinder channel 14 one or more spring plates 32 are provided. The spring plates 32 can in the cylinder channel 14 in the axial direction of the forme cylinder 13 be arranged side by side and / or in such a way that they are in the cylinder channel 14 inserted leading edge 24 the printing form 23 with the leading edge 24 the printing form 23 at different in the radial direction of the forme cylinder 13 spaced positions. Are several spring plates 32 present, they may be arranged immediately adjacent or spaced from each other.

It is also conceivable that in the case of several spring plates 32 the spring plates 32 different on the edge 27 or on the leading edge 24 the printing form 23 exercise effective forces. It can be used in areas where a greater contact pressure on the leading edge 24 the printing form 23 is required, spring plates 32 are used, which are on the leading edge 24 the printing form 23 exert a comparatively large force, and in areas where a lesser pressure on the leading edge 24 the printing form 23 is sufficient, spring plates 32 are used, which are on the leading edge 24 the printing form 23 exercise a lower power compared to.

Per axially adjacent to each other on the form cylinder 13 arranged or arrangeable printing form 23 is each a button 20 for opening and / or closing a printing forme 23 assigned, in a cylinder channel 14 of the forme cylinder 13 arranged holding device 15 intended. The button 20 or the arrangement of several buttons 20 For example, outside in the region of the edge of the forme cylinder 13 in the area of the cylinder channel 14 be arranged accessible from the radial direction, as is made 5 evident. The buttons 20 are in the in 5 illustrated embodiment of the form cylinder 13 arranged. You can in one opposite the lateral surface of the forme cylinder 13 be arranged recessed indentation, which brings with it the advantage that the one or more buttons 20 On the one hand, they are easily accessible and, on the other hand, they are not arranged in an exposed position, which increases the likelihood of undesired actuation of the buttons 20 and reduced for their damage.

By pressing the button or buttons 20 becomes the associated holding device 15 by expansion of the bellows 19 open. After the clamping plate 16 from the edge 17 has removed, the trailing edge can 25 the printing form 23 in the area between clamping plate 16 and edge 17 be used. After releasing the button 20 closes the holding device 15 by spring force and the trailing edge 25 the printing form 23 is between clamp 16 and edge 17 of the cylinder channel 14 held.

The tool-free, manual printing plate change is achieved by a in 6 shown roller bar 21 optionally supported. The roller bar 21 is preferably by means of a holding device below a dampening roller on the frame walls of the printing tower 01 attached.

In the cylinder channel 14 of the forme cylinder 13 are in the embodiment shown here four holding devices 15 for in the axial direction four side by side can be arranged printing forms 23 arranged. The roller bar 21 is in the axial direction of the forme cylinder 13 divided into two and each bridged the width of two axially juxtaposed printing plates 23 , The roller bar 21 carries several pressure rollers 22 and is used for lowering or raising via a button 10 served. The button 10 is in or at the folding step 09 arranged like this in 2 is shown.

This is part of the roller bar 21 a button 10 for individually raising and lowering the two each in the axial direction next to each other on the forme cylinder 13 arranged printing forms 23 assigned parts of the roller bar 21 intended. The roller bar 21 or their parts are on the form cylinders 13 the lower and upper printing units 04 ; 05 a H-pressure unit 08 so attached that an operator the printing forms 23 can hang up freely. The form cylinder 13 have each axially adjacent to each other arranged or arranged printing form 23 via a center register, with the help of which the operator after the automatic positioning of the cylinder channel 14 in a Aufplattschritt the printing plates 23 Registered during the flattening process.

The automatic positioning of the cylinder channel 14 takes place for the first circumferential position by reaching or taking the first Aufplattdrehlage for the first circumferential position by the forme cylinder 13 , The printing form 23 becomes after the automatic positioning of the cylinder channel 14 behind the pressure rollers 22 the roller bar 21 with their leading edge 24 in register via register stones 31 , z. B. center register stones 31 in the cylinder channel 14 hooked, like this from the 7 and 8th evident.

The hanging or insertion of the leading edge 24 the printing form 23 on the form cylinder 13 takes place such that the operator the printing form 23 in a flattening step with its leading edge 24 over an edge 27 in the cylinder channel 14 pulls and then one starting from the lateral surface of the forme cylinder 13 radially or obliquely downwardly directed force exerts. Of course, it is also conceivable, a substantially parallel to the edge 27 the opening 18 of the cylinder channel 14 exercise force. By pressing in the leading edge 24 the printing form 23 between spring plate 32 and edge 27 of the cylinder channel 14 becomes the leading edge 24 the printing form 23 non-positively in the cylinder channel 14 fixed and can only under a certain effort again from the cylinder channel 14 are removed, as is required in the flattening process. In addition to the non-positive fixation of the leading edge 24 the printing form 23 a positive fixation may be possible. This can, for example, by projections, surveys or the like in one of the elements (leading edge 24 or spring steel 32 ) are formed, which engage in recesses, depressions or the like when the leading edge 24 the printing form 23 the desired position in the cylinder channel 14 has taken.

After hanging one or, for example, two in the axial direction adjacent printing plates 23 gives the operator over the footswitch 10 in a Aufplattschritt the control command for lowering the pressure rollers 22 or the roll bar 21 or part of the roller bar 21 for both adjacent printing forms 23 so that the printing forms 23 after hanging and fixing your leading edge 24 on the edge 27 one to a cylinder channel 14 of the forme cylinder 13 leading opening 18 jam in its in-register position, like this 9 evident. Preferably, each printing plate is used 23 by three axially spaced pressure rollers 22 fixed when the form cylinder 13 advances to the clamping of the trailing edge 25 the printing form 23 to be able to make.

The form cylinder 13 moves when flattening in the case of a two diametrically opposed cylinder channels 14 having a forme cylinder 13 then by pressing a button in a further plating step by half a rotation before ( 10 ). The holding device 15 the corresponding printing form 23 is activated by pressing the corresponding, in 5 shown buttons 20 on the form cylinder 13 open and the trailing edge 25 in a further Aufplattschritt the printing plate 23 manually in the cylinder channel 14 pressed. After release of the corresponding button 20 is the printing form 23 in the area of their trailing edge 25 characterized in that the trailing edge 25 between clamping plate 16 and edge 17 is trapped.

At this point it should be mentioned that the representations in the 7 to 10 opposite to the representations in the 3 to 6 and 13 to 15 are mirrored. A final acknowledgment command may be provided to the roller bars 21 or the parts of the roller bar 21 to return to its initial state after the flattening process is completed.

In the 6 shown roller bar 21 has a finger guard 26 in the form of a sheet 26 , which with lowered roller bar 21 from the form cylinder 13 spaced by a gap that is small enough not to move a finger between pressure rollers 22 and form cylinder 13 get to can, and the other hand, is big enough to be a concern of the sheet metal 26 on the form cylinder 13 or on a flattened printing plate 23 or to prevent their contact.

In the 11 and 12 is a closure strip 28 shown. It consists of several in the axial direction of the forme cylinder 13 juxtaposed holding devices 15 , The closure strip 28 is in a cylinder channel 14 arranged. Each holding device 15 the closure strip 28 is independent of the adjacent holding devices 15 operable and consists of several, jointly actuated clamping plates 16 , Also the closure strip 28 and the holding devices 15 are components of the device for tool-free up or down plates of a flexible printing plate 23 on or from a forme cylinder 13 a rotary printing machine. The clamping plates 16 can be pneumatically opened or closed, preferably closing the spring-loaded or spring-loaded is supported. control lines 30 serve the compressed air supply of the individual holding devices 15 or the for actuating the holding devices 15 provided bellows 19 , Each of the holding devices 15 is a section A; B; C; D associated, according to one of several in the axial direction next to each other on a forme cylinder 13 can be arranged or arranged printing forms 23 , In 11 and 12 are also in their function for the leading folds 24 a printing plate 23 already described above center register stones 31 represented, however, at this point the register-containing alignment of the trailing bends 25 of printing plates 23 serve. In addition, register stones 29 , z. B. page register stones 29 be provided, which a side stop for the printing plates 23 form.

The 13 to 15 illustrate again in a schematic representation of the process of manual Aufplattens one or more printing forms 23 on a form cylinder 13 ,

After the process of the forme cylinder 13 in a first Aufplattdrehlage the printing plate 23 or are the printing forms 23 individually with their leading edge 24 in register via register stones 31 , z. B. center register stones 31 in the cylinder channel 14 hooked and fixed in it. The fixation of the leading edge 24 the printing form 23 takes place in that the leading edge 24 the printing form 23 according to 13 such against the force of the spring or elements 32 in the cylinder channel 14 is pressed that the leading edge 24 the printing form 23 between the edge 27 the opening 18 of the cylinder channel 14 and the spring plate 32 is inserted. 14 shows the leading edge 24 the printing form 23 in this retracted position, in which the leading edge 24 the printing form 23 by traction between the edge 27 the opening 18 of the cylinder channel 14 and the spring plate 32 is fixed.

After lowering the pressure rollers 22 or the roll bar 21 or part of the roller bar 21 becomes the form cylinder 13 by rotating through 180 °. By pressing the button 20 , the individual control of the associated holding device 15 forms, the holding device 15 pneumatically opened by means of a pneumatic valve, wherein the clamping plate 16 far from the edge 17 the opening 18 removed that trailing fold 25 the printing form 23 in the area between clamping plate 16 and edge 17 can be pressed. Subsequently, the button 20 relieved and the clamping plate 16 by spring force again on the edge 17 moved, causing a trapping of the trailing edge 25 the printing form 23 in the cylinder channel 14 comes. Then the pressure rollers 22 or becomes the roll bar 21 or part of the roll bar 21 raised again and the flattening process of the printing plate 23 is closed. The Aufplatten another in the circumferential direction of the forme cylinder 13 subsequent printing form 23 takes place in the same way. The cutting off of the printing form (s) 23 from the form cylinder 13 takes place in reverse order of the procedure described.

• – Einen ersten Taster zur Auswahl des Betriebsmodus „Manuell” oder „Automatik”, welcher vorzugsweise als Schwenktaster ausgeführt ist und der Bereichsabsicherung dient. Die Bereichsabsicherung sieht vor, dass im Betriebsmodus „Manuell” zumindest das Druckwerk 04; 05, an dem ein Druckformwechsel durchgeführt wird oder werden soll, nicht von einem anderen Ort, beispielsweise von einem zentralen Bedienpult, z. B. Maschinenleitstand aus, gesteuert werden kann. Im Betriebsmodus „Automatik” werden von einem anderen Ort aus ausgegebene Steuerbefehle befolgt.
• – Einen zweiten Taster zur Vorwahl der ersten oder zweiten Umfangsposition der auszuwechselnden Druckform 23. Der zweite Taster ist vorzugsweise zweimal vorhanden, um bei einem mehrere Druckformen 23 bzw. mehrere druckplattenbreiten Formzylinder 13 von jeder axialen Bedienposition aus zumindest einen der beiden zweiten Taster ergonomisch günstig erreichen zu können. Ist in Umfangsrichtung des Formzylinders 13 nur eine Druckform 23 vorgesehen, so kann der zweite Taster entfallen. Sind in Umfangsrichtung des Formzylinders 13 mehr als zwei Druckformen 23 vorgesehen, so kann der zweite Taster mehrere Schaltstellungen aufweisen oder eine Auswahl durch Mehrfachbetätigung ermöglichen.
• – Einen dritten Taster zur Vorwahl des durchzuführenden Aufplattvorgangs oder Abplattvorgangs beim Druckformwechsel. Beim Auf- und Abplatten wird der Formzylinder 13 in entgegen gesetzte Produktionsrichtung gedreht. Der dritte Taster ist vorzugsweise mindestens zweimal an unterschiedlichen axialen Bedienpositionen vorhanden, um bei einem mehrere Druckformen 23 bzw. mehrere druckplattenbreiten Formzylinder 13 von jeder axialen Bedienposition aus zumindest einen der beiden dritten Taster ergonomisch günstig erreichen zu können. Einen vierten Taster zum Starten des Aufplattvorgangs oder des Abplattvorgangs. Eine Betätigung des vierten Tasters bewirkt beim Aufplattvorgang ein Vorrücken bzw. Vorwärtsdrehen des Formzylinders 13 und beim Abplattvorgang ein Zurückrücken bzw. Zurückdrehen des Formzylinders 13. Die Funktion des vierten Tasters ist abhängig von der mittels des dritten Tasters getroffenen Vorwahl. Auch der vierte Taster kann zweimal vorhanden sein, um bei einem mehrere Druckformen 23 bzw. mehrere druckplattenbreiten Formzylinder 13 von jeder axialen Bedienposition aus zumindest einen der beiden dritten Taster ergonomisch günstig erreichen zu können.
• – Je axial nebeneinander auf dem Formzylinder 13 angeordneter bzw. anordenbarer Druckform 23 jeweils einen fünften Taster 20 (5) zum Öffnen und/oder Schließen einer in einem Zylinderkanal 14 des Formzylinders 13 angeordneten Halteeinrichtung 15 beispielsweise in Form einer pneumatisch oder elektromagnetisch zu öffnenden und/oder zu schließenden Klemmhalterung. Sofern eine oder mehrere Druckformen 23 in Umfangsrichtung auf dem Formzylinder 13 angeordnet bzw. anordenbar sind, genügt eine Ausstattung mit jeweils einem fünften Taster 20 je axial nebeneinander auf dem Formzylinder 13 angeordneter bzw. anordenbarer Druckform 23, da die Umfangsposition der auszuwechselnden Druckform 23 bereits mit dem zweiten Taster vorgewählt wurde bzw. vorwählbar ist, bzw. eine Vorwahl bereits mit dem zweiten Taster durchgeführt wurde. Alternativ ist denkbar, die fünften Taster 20 beispielsweise außen im Bereich der Ränder des Formzylinders 13 im Bereich des Zylinderkanals 14 aus radialer Richtung zugänglich derart anzuordnen, dass sie nicht über die Mantelfläche des Formzylinders 13 in radialer und vorzugsweise auch nicht in axialer Richtung hinausragen. Ein Vorteil, der sich aus einer Anordnung der fünften Taster 20 direkt am Formzylinder 13 ergibt, ist dass keine Steuerleitungen 30 in den drehend gelagerten Formzylinder 13 führen müssen, von denen je individuell betätigbaren Halteeinrichtung 15 eine benötigt werden würde, sondern nur eine gemeinsame Versorgungsleitung.
• – Je ein sechster Taster 10 je anheb- und absenkbarer Anpressrolle 22 bzw. je gemeinsam anheb- und absenkbarer, beispielsweise eine Rollenleiste 21 umfassender Anpressrollengruppe, welcher vorzugsweise als Fußtaster 10 ausgeführt ist und dem Anheben und Absenken der Anpressrollen 22 dient. Der sechste Taster 10 ist vorzugsweise zweimal vorhanden, um bei einem mehrere Druckformen 23 bzw. mehrere druckplattenbreiten Formzylinder 13 von jeder axialen Bedienposition aus zumindest einen der beiden dritten Taster ergonomisch günstig erreichen zu können.
• – Eventuell kann ein weiterer, siebter Taster zur Quittierung und Abschließen des Druckformwechsels vorgesehen sein. Durch den siebten Taster kann beispielsweise bei gegen den Formzylinder 13 angestellter Anpressrolle 22 oder angestellten Anpressrollen 22 diese vom Formzylinder 13 abheben.
• – Sofern die genannten Bedienelemente beispielsweise innerhalb eines Druckturms 01, einer Druckeinheit oder allgemein bei einer mehrere Farbwerke und/oder Formzylinder 13 umfassenden Druckvorrichtung mehreren Farbwerken und/oder Formzylindern 13 zugeordnet bzw. zuordenbar sind, oder sofern ein Formzylinder 13 von mehr als einem Plattenwechsler aus mit Druckformen 23 beschickbar ist, kann außerdem ein achter Taster vorgesehen sein, welcher vorzugsweise als ein mindestens zwei Positionen aufweisender Schwenktaster ausgeführt ist, zur Zuordnung der Funktionen zumindest der ersten bis sechsten Taster zu einem beispielsweise oberen oder unteren Druckwerk 04; 05, einem ersten oder zweiten Formzylinder 13 oder einem oberen oder unteren Plattenwechsler.

A device for preferably tool-free, manual pneumatic up or down plates of printing plates 23 or printing plates 23 per printing unit 04 ; 05 may preferably include the following controls:

• - A first button for selecting the operating mode "manual" or "automatic", which is preferably designed as a swivel button and the area protection is used. The area protection provides that in the "Manual" operating mode at least the printing unit 04 ; 05 at which a printing plate change is or is to be performed, not from another location, for example from a central control panel, eg. B. machine control center, can be controlled. In the "Automatic" operating mode, control commands issued from another location are followed.
• - A second button for preselecting the first or second circumferential position of the printing form to be replaced 23 , The second button is preferably present twice, for a plurality of printing forms 23 or more pressure plate-width form cylinder 13 be able to achieve at least one of the two second buttons ergonomically favorable from each axial operating position. Is in the circumferential direction of the forme cylinder 13 only one printing form 23 provided, so the second button can be omitted. Are in the circumferential direction of the forme cylinder 13 more than two printing forms 23 provided, the second button may have multiple switch positions or allow selection by multiple operation.
• - A third button for preselecting the flattening process or flattening process to be performed during the printing plate change. When up and down plates of the form cylinder 13 turned in opposite direction of production. The third button is preferably present at least twice at different axial operating positions in order to produce a plurality of printing forms 23 or more pressure plate-width form cylinder 13 be able to achieve at least one of the two third button ergonomically favorable from each axial operating position. A fourth button to start the flattening process or the flattening process. An actuation of the fourth button causes during Aufplattvorgang an advance or forward rotation of the forme cylinder 13 and in the flattening process, a back-turning or turning back of the forme cylinder 13 , The function of the fourth button depends on the area code made by the third button. Also, the fourth button may be present twice in order to print multiple forms 23 or more pressure plate-width form cylinder 13 be able to achieve at least one of the two third button ergonomically favorable from each axial operating position.
• - Axially next to each other on the forme cylinder 13 arranged or arrangeable printing form 23 each a fifth button 20 ( 5 ) for opening and / or closing one in a cylinder channel 14 of the forme cylinder 13 arranged holding device 15 For example, in the form of a pneumatically or electromagnetically openable and / or closing clamp. If one or more printing forms 23 in the circumferential direction on the forme cylinder 13 arranged or can be arranged, is sufficient to equip each with a fifth button 20 axially adjacent to each other on the form cylinder 13 arranged or arrangeable printing form 23 because the circumferential position of the printing plate to be replaced 23 already preselected or pre-selected with the second button, or a preselection has already been carried out with the second button. Alternatively, the fifth button is conceivable 20 for example, outside in the region of the edges of the forme cylinder 13 in the area of the cylinder channel 14 accessible from the radial direction to arrange such that they do not over the lateral surface of the forme cylinder 13 protrude in the radial and preferably not in the axial direction. An advantage stemming from an arrangement of the fifth button 20 directly on the forme cylinder 13 results is that no control lines 30 in the rotating mounted cylinder 13 must lead, each of which individually actuated holding device 15 one would be needed, but only one common supply line.
• - One sixth button each 10 each raisable and lowerable pressure roller 22 or ever jointly raised and lowered, for example, a roller bar 21 comprehensive pressure roller group, which preferably as a foot switch 10 is executed and the lifting and lowering of the pressure rollers 22 serves. The sixth button 10 is preferably present twice, at a plurality of printing forms 23 or more pressure plate-width form cylinder 13 be able to achieve at least one of the two third button ergonomically favorable from each axial operating position.
• - It may be possible to provide another, seventh button to acknowledge and complete the printing plate change. By the seventh button, for example, against the forme cylinder 13 Employed pressure roller 22 or hired press rollers 22 this from the form cylinder 13 take off.
• - If the aforementioned controls, for example, within a printing tower 01 , a printing unit or generally in a plurality of inking and / or forme cylinder 13 comprehensive printing device multiple inking and / or form cylinders 13 assigned or can be assigned, or provided a forme cylinder 13 from more than one disc changer with printing plates 23 can be loaded, an eighth button can also be provided, which is preferably designed as a at least two-position having pivoting button, to associate the functions of at least the first to sixth buttons to an example upper or lower printing unit 04 ; 05 , a first or second forme cylinder 13 or an upper or lower plate changer.

Using these control elements, an example will be a flattening process of one or more printing plates 23 on the first circumferential position of a for example, still unembossed forme cylinder 13 explained. This process takes place in such a way that, in a first flattening step, area protection is carried out by selecting the operating mode "manual". This is done by pressing the first button, for example, by the first button is pressed, or by being switched from a switch position "automatic" in a switch position "Manual".

Subsequently, in a second Aufplattschritt for Aufplatten the first circumferential position by means of the second button to select the first circumferential position and preselect the Aufplattvorgang by means of the third button. If the aufzuplattende form cylinder 13 from more than one disc changer with printing plates 23 is chargeable by pressing the preferably as Pivot button eighth button, the functions of the other buttons, with the exception of the or the fifth button 20 assigned to the upper or lower plate changer.

The flattening process is then started in a third Aufplattschritt by pressing the fourth button. After pressing the fourth button twice, wherein a first operation is provided for a start warning, the forme cylinder rotates 13 in a first flattening position for the first circumferential position. In the first flattening position are the pressure rollers 22 in front of a for receiving a leading edge 24 one in the first circumferential position on the forme cylinder 13 to be arranged printing form 23 provided cylinder channel 14 or before a to a in the forme cylinder 13 arranged cylinder channel 14 leading opening 18 ( 7 ).

In this first flattening rotational position for the first circumferential position, those are in the first circumferential position on the forme cylinder 13 to be arranged printing form 23 or printing forms to be arranged 23 in a fourth flattening step on an edge 27 the one to the in the form cylinder 13 arranged cylinder channel 14 leading opening 18 mount or the leading edge 24 the printing form 23 between the edge 27 and the spring plate 32 depress ( 8th . 13 and 14 ). When hanging is a register of each individual printing form 23 sure. This is preferably done by for each axial position of a printing forme 23 provided center registers ensured. Each center register has one in the axial direction of the forme cylinder 13 preferably centrally to the corresponding axial position of the printing plate 23 arranged, one in the + cylinder channel 14 or in the cylinder channel 14 leading opening 18 protruding tab forming register stone 31 , as well as a corresponding recess in a leading edge 24 or in a leading leg of the printing form 23 , The term center register is not to be understood as restricting to the effect that only an exactly middle orientation of the register block 31 and the recess with respect to the axial position of a printing plate 23 leads to the desired result of registration, but it also lead any, but for the individual axial positions consistent and to be observed axial positions for the index block 31 and the recess to the same result.

In a fifth Aufplattschritt is at least one pressure roller 22 or at least one preferably several pressure rollers 22 Roller bar carrying several axial positions 21 by pressing a preferably as a foot switch 10 executed sixth button 10 lowered, and thereby clamps the at least one on the forme cylinder 13 to be arranged printing form 23 on the surface of the forme cylinder 13 , Other hinged and registered printing forms 23 can be activated by pressing another sixth button 10 that the press rollers 22 or roller strips 21 in the corresponding axial positions of the other hinged and registered register printing forms 23 are assigned, by lowering the respective pressure rollers 22 or roller bar 21 on the surface of the forme cylinder 13 to be clamped ( 9 ).

Are all in the first flattening for the first circumferential position on the forme cylinder 13 to be arranged printing forms 23 placed on and lowered by lowering the at least one associated pressure roller 22 or roller bar 21 fixed, in a sixth Aufplattschritt the form cylinder 13 by further pressing the fourth button in a second Aufplattdrehlage forward rotated for the first circumferential position, in which the trailing bends 25 or the trailing leg of the in the first circumferential position on the forme cylinder 13 to be arranged or arranged printing forms 23 in a seventh flattening step in a cylinder channel 14 or in one to one in the form cylinder 13 arranged cylinder channel 14 leading opening 18 as well as arranged in one, by pressing the fifth button 20 or the fifth button 20 opened holding device 15 can be pressed into it. Again, preferably a two-time operation of the fourth button is provided, again a first operation is provided for a start warning and the forme cylinder 13 before the timeout has expired, it is only advanced or turned forward by the second actuation. In this case, the holding device is designed, for example, as a tool-free opening or closing clamp 15 by pressing the fifth button 20 opened and by holding down the fifth button 20 kept open. Will be the fifth button 20 no longer pressed, the holding device closes 15 Immediately, causing a in the holding device 15 inserted leg or a trailing edge 25 a printing plate 23 or printing form 23 is held or clamped. As the trailing edge 25 manually in the cylinder channel 14 and the holding device arranged therein 15 is pressed, it is advantageous in more than one printing plate 23 wide form cylinder 13 fifth button 20 Provide on both sides, as the fifth button 20 must be kept pressed simultaneously while the trailing edge 25 in the holding device 15 is pressed. The fifth button 20 can only print forms lying on the respective sides 23 to be assigned or the lying on the respective pages printing forms 23 holding holding devices 15 , Preferably, the fifth buttons 20 this outside on the edges of the forme cylinder 13 out radial direction accessible in the region of the cylinder channel 14 arranged ( 5 ).

After the printing form 23 with its trailing edge 25 in the seventh flattening step held in the tool-free holding device 15 is introduced, that of this holding device 15 associated fifth button 20 on the form cylinder 13 be released in an eighth Aufplattschritt, so that the holding device 15 closes and the trailing edge 25 the printing form 23 clamps. It is a Nachsetzen the fold 25 possible.

The process becomes common to all in the first circumferential position on the forme cylinder 13 to be arranged printing forms 23 repeated.

In a ninth Aufplattschritt example, by pressing the seventh button, the at least one pressure roller 22 or the at least one roller bar 21 raised and the flattening process acknowledged and completed. Alternatively, this can also be done by a start button.

In The area protection is carried out in a tenth step Selection of operating mode "Automatic" canceled. This is done by pressing the first button, for example by pressing the first button or by pressing the switching position "manual" in the switching position "automatic" switched becomes.

• – Im zweiten Aufplattschritt wird mittels des zweiten Tasters die zweite Umfangsposition zum Aufplatten der zweiten Umfangsposition vorgewählt.
• – Im dritten Aufplattschritt dreht der Formzylinder 13 durch Betätigen des vierten Tasters in eine erste Aufplattdrehlage für die zweite Umfangsposition, in der sich die Anpressrollen 22 wiederum vor einem zur Aufnahme der vorlaufenden Abkantung 24 einer Druckform 23 zur Anordnung in der zweiten Umfangsposition auf dem Formzylinder 13 vorgesehenen Zylinderkanal 14 bzw. vor einer zu einem im Formzylinder 13 angeordneten Zylinderkanal 14 führenden Öffnung 18 befinden.
• – Im vierten Aufplattschritt ist bzw. sind die in der zweiten Umfangsposition auf dem Formzylinder 13 anzuordnende Druckform 23 bzw. anzuordnenden Druckformen 23 in der ersten Aufplattdrehlage für die zweite Umfangsposition mit ihrer vorlaufenden Abkantung 24 an einer Kante 27 der zu dem im Formzylinder 13 angeordneten Zylinderkanal 14 führenden Öffnung 18 einzuhängen.
• – Im sechsten Aufplattschritt wird zur Anordnung einer Druckform 23 auf der zweiten Umfangsposition der Formzylinder 13 durch nochmaliges Betätigen des vierten Tasters in eine zweite Aufplattdrehlage für die zweite Umfangsposition vorwärtsgedreht, wenn alle in der ersten Aufplattdrehlage für die zweite Umfangsposition auf dem Formzylinder 13 anzuordnenden Druckformen 23 aufgelegt und durch Absenken der zugeordneten Anpressrollen 22 fixiert sind.

A flattening process of one or more printing forms 23 to the second circumferential position of a for example, still unembossed forme cylinder 13 runs like the above-described flattening process on the first circumferential position, with the following differences:

• - In the second Aufplattschritt the second circumferential position for Aufplatten the second circumferential position is selected by means of the second button.
• - In the third Aufplattschritt the form cylinder rotates 13 by pressing the fourth button in a first Aufplattdrehlage for the second circumferential position in which the pressure rollers 22 again in front of a for receiving the leading edge 24 a printing form 23 for placement in the second circumferential position on the forme cylinder 13 provided cylinder channel 14 or before a to a in the forme cylinder 13 arranged cylinder channel 14 leading opening 18 are located.
• - In the fourth Aufplattschritt is or are in the second circumferential position on the forme cylinder 13 to be arranged printing form 23 or printing forms to be arranged 23 in the first flattening rotational position for the second circumferential position with its leading edge 24 on an edge 27 the one to the in the form cylinder 13 arranged cylinder channel 14 leading opening 18 mount.
• - In the sixth Aufplattschritt is to arrange a printing form 23 on the second circumferential position of the forme cylinder 13 by further pressing the fourth button in a second Aufplattdrehlage for the second circumferential position forward rotated when all in the first Aufplattdrehlage for the second circumferential position on the forme cylinder 13 to be arranged printing forms 23 applied and by lowering the associated pressure rollers 22 are fixed.

A flattening process of one or more printing forms 23 from the first circumferential position of a forme cylinder 13 runs as follows:
In a first flattening step an area protection is done by selecting the operating mode "Manual". This is done by pressing the first button, for example, by the first button is pressed, or by being switched from a switch position "automatic" in a switch position "Manual".

Subsequently, in a second flattening step, the first circumferential position is to be selected by means of the second pushbutton for flattening the first circumferential position, and the flattening process can be preselected by means of the third pushbutton. If the abzuplattende form cylinder 13 from more than one disc changer with printing plates 23 can be loaded, the functions of the remaining buttons, possibly with the exception of or the fifth button in the second flattening step by pressing the eighth button preferably designed as a pivoting button 20 assigned to the upper or lower plate changer.

The flattening process is then started in a third Flplattschritt by pressing the fourth button. In this case, in turn, a two-time operation of the fourth button may be provided, wherein a first operation is provided for a start warning, and the forme cylinder 13 rotates in a second actuation of the fourth button in a first Ablattdrehlage for the first circumferential position in which the pressure rollers 22 behind one to accommodate a trailing edge 25 one in the first circumferential position on the forme cylinder 13 arranged printing form 23 provided cylinder channel 14 or behind one to one in the forme cylinder 13 arranged cylinder channel 14 leading opening 18 are located.

In a fourth flattening step, the at least one pressure roller 22 or is the at least one, several pressure rollers 22 carrying roller bar 21 automatically lowered programmatically as soon as the forme cylinder 13 has reached or occupies the first Abplattdrehlage for the first circumferential position in the third Abplattschritt.

In a fifth flattening step, the corresponding, the trailing edges 25 the plates to be covered 23 the first circumferential position clamping holding devices 15 by pressing the respective fifth button 20 ( 5 ), whereby the trailing bends 25 the corresponding abzuplattenden printing forms 23 be released and the flexural elastic printing plates 23 at their trailing ends from the cylinder channel 14 or from the cylinder channel 14 leading opening 18 jump.

In a sixth flattening step, the forme cylinder becomes 13 moved back or rotated by pressing the fourth button in a second Abplattdrehlage for the first circumferential position in which the pressure rollers 22 or the roll bar 21 in front of a leading edge 24 from in the first circumferential position on the forme cylinder 13 arranged printing forms 23 receiving cylinder channel 14 or before a to a in the forme cylinder 13 arranged cylinder channel 14 leading opening 18 are located. Again, in turn, a two-time operation of the fourth button may be provided, wherein a first operation is provided for a start warning, and the forme cylinder 13 only after the second operation in the second Ablattdrehlage for the first circumferential position turns back.

In a seventh flattening step, the at least one pressure roller 22 or is the at least one, several pressure rollers 22 carrying roller bar 21 automatically programmatically lifted as soon as the form cylinder 13 has reached or occupies the second Abplattdrehlage for the first circumferential position in the sixth Abplattschritt.

In an eighth flattening step, the at least one of the first circumferential position of a forme cylinder 13 Canceled printing form 23 be removed by an operator by the leading edge 24 the printing form 23 from the area between edge 27 the opening 18 of the cylinder channel 14 and spring plate 32 is pulled out and this from the edge 27 of the cylinder channel 14 or to the cylinder channel 14 leading opening 18 is posted.

Should several printing forms 23 flattened, these can be removed individually by the operator.

In a ninth flattening step, for example, by actuation of the seventh button, the flattening process acknowledged and completed. Alternatively, this can also be done by a start button.

In In a tenth flattening step, the area protection is carried out Selection of operating mode "Automatic" canceled. This is done by pressing the first button, for example by pressing the first button or by pressing the switching position "manual" in the switching position "automatic" switched becomes.

A flattening process of one or more printing forms 23 from the second circumferential position of a forme cylinder 13 runs like the flattening process described above from the first circumferential position, with the following differences:

• - In the second flattening step becomes the Abplatten the second circumferential position by means of the second button the second circumferential position selected.
• - In the third flattening step, the forme cylinder rotates 13 by pressing the fourth button in a first Abplattdrehlage for the second circumferential position in which the pressure rollers 22 behind a trailing edge 25 a printing forme arranged in the second circumferential position on the forme cylinder 23 receiving cylinder channel 14 or behind one to one in the forme cylinder 13 arranged cylinder channel 14 leading opening 18 are located. Again, a two-time operation of the fourth button may be provided, in which case the first actuation again triggers a start warning.
• - In the fourth flattening step, the at least one pressure roller 22 or is the at least one, several pressure rollers 22 carrying roller bar 21 automatically lowered programmatically as soon as the forme cylinder 13 has reached or occupies the first Abplattdrehlage for the second circumferential position in the third Abplattschritt.
• - In the fifth flattening step, the corresponding, the trailing folds 25 the plates to be covered 23 the second circumferential position clamping holding devices 15 by pressing the respective fifth button 20 open, eliminating the trailing bends 25 the corresponding abzuplattenden printing forms 23 be released and the flexural elastic printing plates 23 at their trailing ends from the cylinder channel 14 or from the cylinder channel 14 leading opening 18 jump.
• - In the sixth flattening step, the form cylinder 13 moved back or rotated by pressing the fourth button in a second Abplattdrehlage for the second circumferential position, in which the pressure rollers 22 or the roll bar 21 in front of a leading edge 24 from in the second circumferential position on the form cylinder 13 arranged printing forms 23 receiving cylinder channel 14 or before a to a in the forme cylinder 13 arranged cylinder channel 14 leading opening 18 are located. Again, in turn, a two-time operation of the fourth button may be provided, wherein a first Actuate provided for a start warning, and the forme cylinder 13 only after the second operation in the second Abflattdrehlage for the second circumferential position turns back.
• - In the seventh flattening step, the at least one pressure roller 22 or is the at least one, several pressure rollers 22 carrying roller bar 21 automatically programmatically lifted as soon as the form cylinder 13 has reached or occupies the second Abplattdrehlage for the second circumferential position in the sixth Abplattschritt.

01

Printing tower, high tower

02

03

web

04

printing unit

05

printing unit

06

transfer cylinder

07

transfer cylinder

08

H-type printing unit

09

folding steps

10

button footswitch

11

Page, side frame

12

Page, side frame

13

form cylinder

14

cylinder gap

15

holder

16

clamp

17

edge

18

opening

19

Regulators, bellows

20

button

21

roller strip

22

pressure roller

23

Printing form, printing plate

24

bevel, Running forward

25

bevel, trailing

26

Finger protection, sheet

27

edge

28

sealing strip

29

Register stone, Page register block

30

control line

31

Register stone, Middle register block

32

spring plate

A

section

B

section

C

section

D

section

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - WO 2008/025584 A1 [0002]

Claims (14)

Form cylinder ( 13 ) of a rotary printing press, wherein the forme cylinder ( 13 ) at least one extending in its axial direction cylinder channel ( 14 ) with an opening ( 18 ) on the lateral surface, wherein in the at least one cylinder channel ( 14 ) at least one edge ( 27 ) is provided, to which at least one on and / or abzplattende printing form ( 23 ) with a leading edge ( 24 ) is suspended, wherein in the cylinder channel ( 14 ) at least one holding device ( 15 ) is provided, which is a clamping plate ( 16 ), by which at least one printing plate ( 23 ) with one through the opening ( 18 ) into the cylinder channel ( 14 ) introduced trailing fold ( 25 ) is clamped or clamped, wherein the forme cylinder ( 13 ) has a plurality of successive sections in its axial direction, each of which has at least one cylinder channel extending in its axial direction (US Pat. 14 ), wherein in each of these sections exactly one or more printing forms ( 23 ) can be arranged, characterized in that in each of these sections at least one spring plate ( 32 ) for fixing the leading edge ( 24 ) of the printing form (s) ( 23 ) and / or a holding device ( 15 ) for fixing the trailing edge ( 25 ) of the printing form (s) ( 23 ) is arranged, that in each case the at least one spring plate ( 32 ) is arranged such that it for the purpose of fixing the leading edge ( 24 ) of the printing form ( 23 ) one on the edge ( 27 ) of the cylinder channel ( 14 ) or on the leading edge ( 24 ) one to the edge ( 27 ) hinged printing form ( 23 ) directed force exercises. Shaped cylinder according to claim 1, characterized in that the spring plate ( 32 ) is curved so that it is not flat, but only punctiform or linear with the edge ( 27 ) of the cylinder channel ( 14 ) or with the edge ( 27 ) of the cylinder channel ( 14 ) hinged leading edge ( 24 ) of the printing form ( 23 ). Shaped cylinder according to claim 1, characterized in that in each section of the cylinder channel ( 14 ) exactly one spring plate ( 32 ) or more, in the longitudinal direction of the cylinder channel ( 14 ) and / or in the radial direction of the forme cylinder ( 13 ) directly adjacent or spaced apart arranged spring plates ( 32 ) are provided. Shaped cylinder according to claim 1, characterized in that in the cylinder channel ( 14 ) several spring plates ( 32 ) provided on the edge ( 27 ) of the cylinder channel ( 14 ) or on the leading edge ( 24 ) one to the edge ( 27 ) hinged printing form ( 23 ) exert different forces on each other. Form cylinder according to claim 1, characterized in that the at least one spring plate ( 32 ) on its to the edge ( 27 ) of the cylinder channel ( 14 ) or on its to the edge ( 27 ) hinged leading edge ( 24 ) of the printing form ( 23 ) side one the friction between spring plate ( 32 ) and leading edge ( 24 ) of the printing form ( 23 ) coating is performed or the friction between spring plate ( 32 ) and leading edge ( 24 ) of the printing form ( 23 ) has an increasing surface structure. Shaped cylinder according to claim 1, characterized in that the spring plate ( 32 ) has a leg which on a wall of the cylinder channel ( 14 ) at least partially abuts and is fixed to this. Shaped cylinder according to claim 1, characterized in that the edge ( 27 ) of the cylinder channel ( 14 ) not in the radial direction of the forme cylinder ( 13 ) but at an acute angle. Shaping cylinder according to one of the preceding claims, characterized in that the edge ( 27 ) of the cylinder channel ( 14 ) parallel or substantially parallel to the leading edge ( 24 ) of the printing form ( 23 ) runs. Shaping cylinder according to one of the preceding claims, characterized in that the forme cylinder ( 13 ) two or more than two circumferentially offset cylinder channels ( 14 ) having. Shaped cylinder according to claim 1, characterized in that the clamping plate ( 16 ) by means of at least one pneumatically actuatable actuating means ( 19 ) is pressed. Form cylinder according to claim 1, characterized in that the holding device ( 15 ) is pneumatically opened and spring-loaded closed. Shaped cylinder according to claim 1, characterized in that on the forme cylinder ( 13 ) manually operated buttons ( 20 ) are provided, through which the holding device ( 15 ) when manually pressing the buttons ( 20 ) is opened. Form cylinder according to claim 1, characterized in that the holding device ( 15 ) to open and / or close without tools. Shaped cylinder according to one of the preceding claims, characterized in that the spring plate ( 32 ) Has projections and / or recesses / depressions, which with Ausnehmun gene / depressions or projections of the leading edge ( 24 ) of the printing form ( 23 ) cooperate in such a way that the leading edge ( 24 ) of the printing form ( 23 ) also by positive locking on the spring plate ( 32 ) is fixed.