EP2185361B1 - Printing unit comprising at least two side frame parts whose distance relative to each other can be modified in a horizontal direction - Google Patents

Description

The invention relates to a printing unit having at least two side frame parts which can be displaced relative to one another in a horizontal direction in a horizontal direction and a method for fixing these side frame parts according to the preamble of claims 1 and 14.

From the WO 2005/037553 A1 is designed as a printing tower printing unit with four stacked double printing or bridge printing works known which comprises two relatively movable frame parts, each with two opposite side frame plates, each side frame plate three centering or locking devices are assigned, which may be formed as a hook.

From the WO 2005/037552 A1 is another, designed as a printing tower printing unit with four superimposed double printing or bridge printing works known, with a movable relative to a stationary frame part frame part is mounted on rollers. The rollers are retractable in a lowered position to support the weight of the movable frame member on a stationary support.

From the EP 07 49 369 B1 is another, designed as a printing tower printing unit with four stacked double printing or bridge printing works known, with a stationary frame member and a mounted on rollers movable frame part, wherein the frame parts are locked in the operating state.

From the EP 17 67 359 A2 is another, designed as a printing tower printing unit with four stacked double printing units known, wherein two relatively movable frame parts are provided. The printing cylinder of the Double printing units are mounted radially adjustable in linear bearings, which are hydraulically actuated.

The DE 601 18 828 T2 discloses a printing unit having at least two side frame members which are spaced apart relative to each other in a horizontal direction, each of which receives a printing unit or parts of a printing unit and at least one side frame between a closed functional position, in which the side frame parts are brought together and fixed against each other, and an open position they are spaced from each other, is movable, wherein at least one locking device is provided, which comprises a side frame parts in the closed functional position biasing cylinder.

WO 02/07972 A . WO 2005/097505 A . US-A-5 718 172 also represent the state of the art.

The invention has for its object to provide a printing unit with at least two relatively variable in a horizontal direction in a horizontal direction side frame parts and a method for fixing these side frame parts.

The object is achieved by the features of claim 1 and 14, respectively.

The one the side frame parts in the closed functional position biasing cylinder, in particular draw cylinder comprehensive locking device, which may be designed in particular as a hydraulic swing clamp, preferably more locking devices are provided, ensures correct contact of the stops of the side frame parts and a uniform fixing the side frame parts. As a result, the required, complex adjustment to evenly load all hooks, omitted.

The proposed in a preferred embodiment of the invention, in particular centrally or z. B. in the center of gravity or approximately in the center of gravity and in the lower frame of the printing unit arranged cylinder-piston assembly supports this an exact Positioning of the movable side frame part during operation.

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

Fig. 1

eine schematisierte Seitenansicht einer Druckeinheit mit einem ortsfesten Seitengestellteil und einem abstandsvariablen Seitengestellteil;

Fig. 2

eine perspektivische Ansicht des Gestells der Druckeinheit nach Fig. 1, wobei das dem Betrachter zugewandte Seitengestell nicht dargestellt ist;

Fig. 3

eine Seitenansicht des Gestells nach Fig. 2, welche zusätzlich die horizontale Teilung des Gestells zeigt;

Fig. 4

eine perspektivische Darstellung einer Schließvorrichtung zum Verriegeln der Seitengestellteile der Druckeinheit nach Fig. 1 bis 3, sowie eines Anschlags für die Seitengestellteile in ihrer Funktionsstellung;

Fig. 5

eine weitere perspektivische Darstellung der Schließvorrichtung nach Fig. 4, sowie einer Zentriervorrichtung für die beiden Seitengestellteile in der Funktionsstellung;

Fig. 6

eine Seitenansicht der Schließvorrichtung nach Fig. 4 bzw. 5 mit in Funktionsstellung befindlichen Seitengestellteilen;

Fig. 7

eine perspektivische Ansicht des Basis des Gestells der Druckeinheit nach Fig. 1 bis 3 sowie diverser, an der Basis angeordneter Komponenten Druckeinheit;

Fig. 8

eine vergrößerte Darstellung gemäß Fig. 7, die insbesondere auch die Zylinder-Kolben-Anordnung zum Bewegen des verschiebbaren Seitengestellteils zeigt;

Fig. 9

eine Detailansicht der Basis gemäß Fig. 7 aus anderer Richtung, die insbesondere eine Teilansicht der Führung des beweglichen Seitengestellteils mittels Laufschuhen zeigt;

Fig. 10

eine Seitenansicht der Anordnung nach Fig. 9;

Fig. 11

eine perspektivische Ansicht eines Laufschuhs von unten bei einer Führung nach Fig. 9 oder 10;

Fig. 12

eine perspektivische Ansicht eines Laufschuh-Trägers bei einer Führung nach Fig. 9 oder 10;

Fig. 13

eine Schnittansicht durch den Laufschuh-Träger nach Fig. 12;

Fig. 14

eine weitere Ansicht des Laufschuh-Trägers nach Fig. 13;

Fig. 15

eine perspektivische Teilansicht einer alternativen Ausgestaltung einer Führung des beweglichen Seitengestellteils mittels Gleitschuhanordnungen;

Fig. 16

eine Seitenansicht der Darstellung nach Fig. 15;

Fig. 17

eine Draufsicht der Darstellung ähnlich Fig. 15, jedoch ohne Gleitschuh-Träger;

Fig. 18

eine perspektivische Ansicht eines Gleitschuhs einer Gleitschuhanordnung nach Fig. 15;

Fig. 19

eine Ansicht des Gleitschuhs nach Fig. 18 von oben;

Fig. 20

eine Seitenansicht des Gleitschuhs nach Fig. 19;

Fig. 21

eine weitere Seitenansicht des Gleitschuhs nach Fig. 19;

Fig. 22

eine perspektivische Ansicht des Gleitschuhs nach Fig. 19 von schräg unten.

Show it:

Fig. 1

a schematic side view of a printing unit with a stationary side frame part and a distance-variable side frame part;

Fig. 2

a perspective view of the frame of the printing unit after Fig. 1 wherein the viewer facing side frame is not shown;

Fig. 3

a side view of the frame after Fig. 2 which additionally shows the horizontal division of the frame;

Fig. 4

a perspective view of a locking device for locking the side frame parts of the printing unit after Fig. 1 to 3 , as well as a stop for the side frame parts in their functional position;

Fig. 5

a further perspective view of the locking device according to Fig. 4 , As well as a centering device for the two side frame parts in the functional position;

Fig. 6

a side view of the locking device according to Fig. 4 or 5 with located in functional position side frame parts;

Fig. 7

a perspective view of the base of the frame of the printing unit after Fig. 1 to 3 and various base-mounted components of the printing unit;

Fig. 8

an enlarged view according to Fig. 7 in particular also showing the cylinder-piston assembly for moving the sliding side frame member;

Fig. 9

a detailed view of the base according to Fig. 7 from another direction, showing in particular a partial view of the guide of the movable side frame part by means of running shoes;

Fig. 10

a side view of the arrangement according to Fig. 9 ;

Fig. 11

a perspective view of a running shoe from below in a guide Fig. 9 or 10 ;

Fig. 12

a perspective view of a running shoe wearer after a guide Fig. 9 or 10 ;

Fig. 13

a sectional view through the running shoe carrier after Fig. 12 ;

Fig. 14

another view of the running shoe wearer after Fig. 13 ;

Fig. 15

a partial perspective view of an alternative embodiment of a guide of the movable side frame part by Gleitschuhanordnungen;

Fig. 16

a side view of the illustration Fig. 15 ;

Fig. 17

a top view similar to the representation Fig. 15 but without a shoe carrier;

Fig. 18

a perspective view of a shoe according to a Gleitschuhanordnung Fig. 15 ;

Fig. 19

a view of the shoe after Fig. 18 from above;

Fig. 20

a side view of the shoe after Fig. 19 ;

Fig. 21

another side view of the shoe after Fig. 19 ;

Fig. 22

a perspective view of the shoe after Fig. 19 from diagonally below.

Fig. 1 shows in greatly simplified form schematically a printing unit 01 or printing machine 01, in particular a web-fed rotary printing machine 01 in the form of a printing tower 01, preferably a printing machine 01 printing several different printing inks, with z. B. four in a frame 02 vertically stacked printing units 04, namely double printing units 03, wherein a substrate 05, z. B. a web of material 05, in particular a paper web 05, in the vertical direction, the double printing units 03 passes successively. Each of these double printing units 03 is formed from two printing units 04.

In the example shown, in each double printing unit 03 on both sides of the paper web 05 for perfecting one printing unit 04 with a first cylinder 06 or printing cylinder 06, in particular a printing ink transferred, equipped with at least one blanket transfer cylinder 06 or blanket cylinders 06 and a second cylinder 07 or printing cylinder 07, in particular a rolling on the blanket cylinder 06, one or more printing plates carrying forme cylinder 07 and plate cylinder 07 is arranged. The two blanket cylinders 06 and the two plate cylinders 07 of two opposing printing units 04 of a double printing unit 03 are arranged so that their axes of rotation lie in a plane which is inclined relative to the paper web 05 by preferably 75 ° to 88 °. Each printing unit 04 consisting of at least one blanket cylinder 06 and one plate cylinder 07 is assigned an inking unit 08, for example a roller inking unit 08 or a short inking unit 08. Furthermore, each printing unit 04 is assigned a dampening unit 09, for example a spray dampening unit 09. If working in a manner not shown in the "dry offset" or "waterless offset printing", no dampening solution and thus no dampening unit 09 is provided and the inking unit 08 may be formed, for example, as pump inking unit 08.

Each printing unit 04 of the printing press 01 has at least one preferably position-controlled, not shown here drive motor. The plate cylinder 07 and the blanket cylinder 06 may be drivingly connected to each other, in particular by means of gears. Alternatively, each blanket cylinder 06 and each plate cylinder 07 may be provided with its own, not shown here drive motor, in such a drive concept, a plate change on a plate cylinder 07 regardless of a plate change on another plate cylinder 07 can be performed.

The printing units 04 or their plate cylinder 07 may be designed to receive a plurality of printing plates in the axial direction, in particular of 2, 3, 4, 5, 6, 7 or 8 printing plates in the axial direction, as well as for receiving one or possibly also for recording of several pressure plates in the circumferential direction, in particular of two pressure plates in the circumferential direction.

In the illustration according to Fig. 1 are arranged on both sides of the paper web 05 in each case a double printing unit 03 arranged rubber cylinder 06 in a so-called rubber-rubber arrangement against each other, so that the mutually employed rubber cylinder 06 mutually act as a counter-pressure cylinder. Alternatively, in a manner not shown, printing units 04 can be combined to form a satellite printing unit, for example, four printing units 04 each common, from the remaining cylinders 06; 07 separate impression cylinder are arranged, wherein the paper web 05 is guided in each case between at least one employed on the impression cylinder transfer cylinder 06 and the impression cylinder.

As in Fig. 1 indicated the printing tower 01 comprises a plurality, in particular two separable side frame modules 11, which can be separated and spaced apart in the horizontal direction in a horizontal direction; 12 or side frame parts 11; 12, in particular a machine-fixed or stationary side frame part 11 and a side frame part 12 which is displaceable relative thereto, wherein the displaceable side frame part 12 is displaceable along a lower stationary base 13. Alternatively, both side frame parts 11; 12 arranged to be displaceable. On each side frame part 11; 12 is in each case a printing unit 04 of a double printing unit 03 together with associated components such as in particular inking unit 08 and possibly dampening unit 09 and not shown here, possibly arranged automatically or semi-automatically plate changing devices or disk magazines. Due to the divisibility of the frame 02, the frame 02 can be opened and corresponding printing unit components are thus optimally accessible for setup, maintenance and possibly repair purposes.

The printing cylinder 06; 07, ie the transfer cylinder 06 or blanket cylinder 06 and the forme cylinder 07 or plate cylinder 07 are each mounted in a bearing unit 14 and a linear bearing 14, wherein preferably both ends of each printing cylinder 06; 07 are mounted in a linear bearing 14. Such a linear bearing 14 supports a printing cylinder 06; 07 for rotation while allowing translation, so a linear travel of the printing cylinder 06; 07, for example, to the plate cylinder 07 from the blanket cylinder 06 z. B. to turn off for the purpose of a plate change. The linear bearings 14 are movable by means of actuators 16 in the form of hydraulic piston 16, which is a common, not shown here Have supply. For the construction and operation of the known linear bearings 14 is, for example, the above-mentioned EP 17 67 359 A2 directed.

As in particular in Fig. 2 recognizable, in which the viewer facing side frames are not shown for the sake of clarity, the frame 02 comprises the stationary side frame part 11, whose opposing side frames are fixed to the base 13, and the displaceably mounted side frame member 12, the opposing side frame parts on the Base 13 are slidably mounted and are rigidly connected to each other by means of a lower, close to the base arranged crossbar 19 for common movement.

As in Fig. 3 is shown, at least one of the side frame parts 11; 12, preferably all or both side frame parts 11; 12, formed divisible in height, in particular along an at least substantially horizontal plane. In principle, in particular as a function of the height of the respective printing tower 01, a division into several parts is possible, in the case of the present embodiment, however, a division into two parts 11a; 11b and 12a, respectively; 12b or in two side frame halves 11 a; 11b and 12a, respectively; 12b provided, which should be sufficient as a rule to the particular purpose of this particular problem-free, simple and cost-saving transportability of the side frame halves 11a; 11b; 12a; To ensure 12b. The side frame halves 11a; 11b and 12a, respectively; 12b are in particular after your transport for mounting to side frame parts 11 and 12 firmly connected to each other, for example screwed via bolts.

How out Fig. 3 becomes clear, there is an at least substantially central division of the side frame parts 11; 12, so that at least substantially the same side frame halves 11a; 11b; 12a; 12b of at least substantially the same dimensions, resulting in constructional and handling technology Regard is beneficial.

The individual side frame halves 11a; 11b; 12a; 12b are each at least substantially box-shaped, with their open side in each case z. B. facing outward. The side frame halves 11 a; 11b; 12a; 12b also have various openings 21 for receiving storage facilities of the printing cylinder 06; 07 and peripheral equipment such as inking unit 08 or ink fountain rollers, dampening 09 or dampening rollers etc. of the individual printing units 04 on. They are designed to fit different formats according to the customer's needs. D. H. the forme cylinder 07 and transfer cylinder 06 can be used with different diameters.

For horizontal movement or displacement of the variable-spacing side frame member 12, a preferably hydraulically working cylinder-piston assembly 22 is provided with a cylinder 23 which is fixed at one of its ends to the base 13 and with a piston rod 24, with one of its ends the movable side frame part 12 is connected, see. also Fig. 2 . 3 . 7 . 8th and 15 to 17 , The cylinder-piston assembly 22 is, as shown, preferably arranged on the underside of the movable side frame part 12. In detail, the cylinder-piston assembly 22 is at least substantially, preferably exactly centered or z. B. in the load center between the opposite side frame parts 11; 12 and the piston rod 24 is connected to a vertically extending pin 26, which in turn is connected to the crossbar 19 of the side frame member 12.

The cylinder-piston assembly 22 is provided with a first end, namely with the z in the illustration. B. Fig. 8 right end, via a bearing device 27, namely a pivot bearing 27 with vertically aligned pivot axis mounted on the base 13 and with a second end, namely with the in the illustration Fig. 8 left end, via a further bearing device 28, namely a pivot bearing 28 also with vertically aligned pivot axis on the movable side frame part 12, ie in the case of here in question embodiment mounted on the crossbar 19, in particular on the attached to the crossbar 19 bolts 26.

As in Fig. 2 is indicated schematically for the cylinder-piston assembly 22 and at least one further hydraulic element, in particular hydraulic unit of the pressure unit 01, a common hydraulic supply 29 is provided. In particular, the common hydraulic supply 29 can also supply the actuators 16 or hydraulic pistons 16 of the bearing units 14 or linear bearings 14 (see FIG. Fig. 1 ) and / or the hydraulically actuated closing devices 31 or pivoting clamps 31 described below (cf. Fig. 2 ) for securing the closed functional position of the side frame members 11; 12. Finally, the common hydraulic supply 29 can supply at least one further, not shown pressure generating device of the printing unit 01.

For mutually fixing the side frame parts 11; 12 in its functional position, ie in the position in which the printing unit 01 is in its production operation, at least one closing device 31 is provided, preferably at least one closing device 31 for each side of the frame 02, ie for each side frame pairing 11, 12. Particularly preferred It is when at least two locking devices 31 are provided on each side, in particular on each side three locking devices 31, as in Fig. 2 illustrated, or, in another format to be printed, four closing devices 31 per page. Here, each side frame half 11 a; 11b; 12a; 12b each associated with at least one locking device 31. In the case of the illustrated preferred embodiment, the arrangement is such that the lower side frame halves 11b; 12b on each side of the printing unit 01 each have two closing devices 31 and the upper side frame halves 11a; 12a are each associated with a closing device 31, as in particular from Fig. 2 can be seen. In the case of a plurality of closing devices 31, these are preferably arranged vertically above one another.

The structure of a preferred embodiment of a closure device 31 is obtained in particular 4 to 6 , The closing device 31 comprises a preferably hydraulically actuated, the associated side frame parts 11; 12 in the closed functional position biasing cylinder 32, in particular a side frame parts 11; 12 in the operating position pulling cylinder 32. Preferably, the closing device 31 comprises at least one pivotable clamping arm 33 which is pivotable from a closed position to a release position and can be arranged at the free end of the piston rod 34 of the cylinder 32.

In particular, the pivotable clamping arm 33 may be rigidly connected to the piston rod 34 of the tensioning cylinder 32, and the piston of the tensioning cylinder 32 may be rotatable about its axis. The pull cylinder 32 is then expediently constructed in a manner known per se such that a part of the stroke of the pull cylinder 32 is used as a rotary stroke for rotating the piston and thus for pivoting the clamping arm 33. The closing device 31 is thus preferably designed as a swing clamp 31.

The locking device 31 further comprises a mounting flange 36 having through holes 37 through which the locking device 31 by means of screws 38 on a side frame part 11; 12 and a side frame half 11a; 11b; 12a; 12b is fastened. Preferably, the closing devices 31 or swing clamps 31 on the stationary side frame part 11, ie the associated side frame halves 11 a; 11b attached. At the opposite side in the functional position side frame parts 12, ie at the associated side frame halves 12a; 12b, then suitable openings 35 and openings 35 may be formed, which penetrates the swing clamp 31 with its piston rod 34, in particular together with clamping arm 33, in the not yet fixed functional position; upon actuation of the pull cylinder 32, the tensioning arm 33 is then initially pivoted so that it engages the corresponding side frame part 11 or 12 or the corresponding side frame half 11a; 11b; 12a; 12b engages, and in the further course of the piston movement of the pivoted into its clamping position clamping arm 33 is increasingly drawn toward the cylinder 32, whereby the movable side frame half 12a; 12b increasingly toward the stationary side frame half 11a; 11 b is pulled into its closed position or functional position. Additionally, the large cylinder and piston assembly 22 in the subframe assists in accurately positioning the movable side frame member 12 during operation.

The openings 35 preferably have a circumferential, preferably an endless boundary. The openings 35 are preferably in a direction parallel to the axes of rotation of the printing cylinder 06; 07 leading wall (in particular the edge of the box-shaped side frame parts 11, 12 or side frame halves 11a, 11b, 12a, 12b), preferably in the wall facing the opposite side frame.

On the mounting flange 36 of the swing clamp 31 are further connections 39; 41 formed for the working fluid, in particular the hydraulic oil, which via lines 42; 43 is added or removed. The lines 42; 43 are, as explained above, connected to a common hydraulic supply 29, which also supplies the cylinder-piston assembly 22. Preferably, all closing devices 31 are actuated together.

For lateral guidance or centering of the side frame parts 11; 12 in its functional position, at least one centering device 44 is provided, which the adjacent side frame parts 11; 12 aligns against each other, cf. Fig. 2 and 5 , In the case of the embodiment shown, the centering device 44 is formed by a prism device 44 which has a receiving part 46 with a prismatically shaped receiving opening 47 on a side frame part 11; 12, z. B. the stationary side frame part 11, and an insertion part 48 with a prismatically shaped insertion nose 49 on the other side frame part 11; 12, z. B. on the sliding side frame part 12, comprising, wherein the prismatic shapes of receiving part 46 and insertion part 48 correspond.

The centering device 44 is as shown Fig. 2 seen, provided only on one side of the printing unit 01 and there at the mutually facing upper end portions of the side frame parts 11; 12 above the top or z. B. arranged below the lowermost closing device 31.

For a defined functional position of the two side frame parts 11; Furthermore, at least one stop device 51 defining the functional position is provided, cf. z. B. Fig. 2 . 4 or 10 , Preferably, a plurality of stop devices 51 are provided, in particular stop devices 51 on both sides of the printing unit 01, ie on the stone frame parts 11; In each case, a plurality of stop devices 51 may be provided on each side of the printing unit 01, for example two stop devices 51 or three or four stop devices 51, depending on the format to be printed. In particular, each closing device 31 may be assigned a stop device 51, preferably assigned such that the respective stop device 51 of the respectively associated closing device 31 is arranged directly adjacent.

Each stop device 51, as shown, two z. B. disc-shaped stop elements 52; 53 include, the facing surfaces define the stop surfaces and of which one is attached to the side frame member 11 and the other on the side frame member 12, for example by means of screws. Each stop device 51 may be formed adjustable or adjustable with respect to their exact stop position, for example in a manner not shown by inserting spacers of different numbers and / or different thickness.

For displaceable mounting of the at least one displaceable side frame part 12 of the frame 02 of the printing unit 01 or of the printing tower 01, at least one running shoe arrangement 54 is provided on each side of the printing unit 01, cf. Fig. 7 to 14 , In the case of the embodiment shown, for example, three running shoe assemblies 54 are provided on each side, the z. B. by means of screws 56 on the respective underside of the two opposite or their respective lower side frame half 12 b of the sliding side frame member 12 are fastened. The running shoe assemblies 54 are opposite on the two side supports 57 of the base 13 guide rails 58 are fixed along which run the shoe assemblies 54 and at the same time, as described below, for lateral guidance or adjustment of the movable side frame part 12.

Each running shoe assembly 54 comprises a total of approximately cuboid running shoe support 59, see. especially Fig. 12 to 14 , which is fastened via through-holes 60 on the underside of the respective side frame part 12 and which receives a running shoe 61, as it consists of Fig. 11 becomes clear. The running shoe 61 comprises a housing 62 on which two webs 63 with through holes 64 are laterally formed for attachment to the running shoe support 59 or to the underside of the side frame part 12.

In the housing 62 of the running shoe 61, a plurality of rollers 66 are arranged in parallel and, when the running shoe 61 moves, rotate along at least one closed path, which is arranged in a vertical plane which extends in the direction of movement of the displaceable side frame part 12. How out Fig. 11 becomes clear, a plurality of parallel tracks may be provided for a plurality of groups of rotating rollers 66, in particular as shown, two parallel tracks side by side for two groups 67; 68 of rotating rollers 66. The closed path can be defined in each case in a manner not shown, for example, by two opposite guide grooves, in which axially extending stub axles of the rollers 66 are guided.

The housing 62 of the running shoe 61 is opened at its bottom side facing the guide bar 58, and the guide track of the rollers 66 is rectilinear in this area, so that the rollers 66 can come into contact with the guide track 58 on their underside and contact the guide track 58 opposite upper side supported on a formed in the housing 62, not shown supporting surface. When moving the sliding side frame member 12, the components then roll in the manner of a rolling bearing to each other.

Each running shoe assembly 54 is associated with at least one scraper 69, which is arranged in anticipation of the rollers 66 of the running shoe 61 to scrape dirt on the surface of the guide rail 58 and thus keep away from the running shoe 61 during movement of the running shoe 61. Preferably, two stripping devices 69 are provided, wherein in each case one stripping device 69 is arranged leading in each case in one of the two directions of running of the running shoe 61 to the running shoe 61.

In particular, the wiper 69 may be disposed on the shoe assembly 54, e.g. The stripping device 69 may in each case be designed as a stripping seal 69 and, for example, consist of an elastically deformable material with at least one arranged in the running plane of the rollers 66 Scraper lip 71. For a particularly effective seal has in the case of the embodiment, each stripping 69 69 seen in the running direction of the running shoe 61 successively arranged scraper lips 71, for example, sealing lips 71.

In addition to the above-described running shoe assemblies 54, there are at the bottom one of the two opposing sliding side frame members 12 or both of the opposing sliding side frame parts 12, preferably only on the one, the centering device 44 supporting side frame member 12, optionally positionally adjustable with regard to their position guide roller carrier 72; 73; 74 attached to which guide rollers 76; 77; 78; 79 are mounted with vertically arranged axis of rotation, which are supported on both sides of the guide rail 58 at its narrow side and thus allow a guide or adjustment of the movably mounted side frame part 12. The guide roller carrier 72 carries an internally arranged guide roller 76, the guide roller carrier 73 an outwardly disposed guide roller 77 and the guide roller carrier 74 both an internally arranged guide roller 78 and an externally arranged guide roller 79th

An alternative to the above-described storage of the displaceable side frame member 12 by means of running shoes 61 type of storage, namely a storage by means of sliding shoes 82, is hereinafter with reference to the 15 to 22 described.

For slidable mounting of the at least one displaceable side frame part 12 of the frame 02 of the printing unit 01 and the printing tower 01 is on each side of the printing unit 01 a Gleitschuhanordnung 81, each with at least one sliding surface 88 preferably made of plastic having shoe 82 is provided. In the case of the embodiment shown, for example, three sliding shoes 82 are provided on each side of the printing unit 01, which are held in a common shoe carrier 83, the z. B. by means of screws 84 on the respective underside of the two opposite or their respective lower side frame half 12 b of the sliding side frame member 12 is fastened. The sliding surface 88 can also be screwed or glued directly. The sliding shoe assembly 81 opposite to the two side supports 57 of the base 13 guide rails 58 are fixed along which run the Gleitschuhanordnungen 81 and at the same time, as described below, for lateral guidance or adjustment of the movable side frame part 12.

Each slide shoe 82 is accommodated in a recess of the slide shoe carrier 83 shaped in accordance with the shape of the slide shoe 82 and, as can be seen in particular FIGS. 18 to 22 results, at least approximately plate-shaped. The shoe 82 has a Gleitschuhbasis 86 and a mounted on the Gleitschuhbasis 86, for example glued, in particular made of high-slip plastic sliding layer 87 which defines the sliding surface 88. The downwardly facing sliding surface 88 of the slide shoe 82 projects in the installed state of the slide shoe 82 down over the underside of the slide shoe carrier 83, so that only the slide shoes 82, but not the slide shoe carrier 81 touch the surface of the guide bar 58.

The high lubricity plastic used as the material for the sliding layer 87 preferably has a coefficient of friction between 0.02 and 0.40 at a surface pressure of between 1.0 and 4.0 N / mm ² and a temperature of 25 ° C, especially a coefficient of friction between 0.04 and 0.30 at a surface pressure between 0.5 and 4.0 N / mm ² and a temperature of 25 ° C, more preferably a coefficient of friction between 0.06 and 0.12 at a surface pressure between 0.3 and 4.7 N / mm ² and a temperature of 25 ° C. It is further preferred if the plastic material has a tensile strength between 30 and 100 N / mm ² , in particular between 45 and 75 N / mm ² . Finally, a preferred plastic material has a wear factor at 20 ° C of less than 0.2 mm / 100 km, preferably a wear factor at 20 ° C of less than 0.1 mm / 100 km, in particular a wear factor at 20 ° C of less than 0.05 mm / 100 km.

A suitable as a plastic material for the sliding layer 87 material may in particular be a structural plastic, which may preferably be formed as, having multiple materials, composite plastic and should preferably be maintenance-free and wear-resistant. Preferably, the plastic comprises one component of thermoplastic polyester and another component has a rubbery one Character with high elasticity. A suitable material is known under the name ZEDEX and commercially available, here in particular under the name ZX-100, preferably ZX-100A, or in particular Uniform 2000 gray blue, which has the preferably desired properties to a high degree.

Each of the sliding shoes 82 may have a sliding surface 88, for example between 20 and 1000 cm ² , preferably between 40 and 400 cm ² , in particular of 100 cm ² +/- 50%. In the sliding surface 88 depressions 89 may be formed for receiving impurities in order to avoid as much as possible caused by contamination wear or a reduction in the lubricity. The depressions 89 may in particular be groove-shaped or groove-shaped and, as shown, cover the sliding surface 88 in the form of a net. In particular, the longitudinal extent of the recesses 89 can extend obliquely to the direction of displacement of the movable side frame part 12 to z. B. an automatic emptying of the recesses 89 to allow, and in particular with the displacement direction include an angle of 45 °. It is particularly preferred if, as in, for example Fig. 19 illustrated, the sliding surface 88 has a grid on intersecting groove-shaped recesses 89 which extend obliquely to the direction of displacement of the side frame part 12.

It is preferred if the depressions 89 of the sliding surface 88 occupy a relatively large area fraction of more than 10% of the sliding surface 88, preferably of more than 20%, in particular an area fraction of between 25% and 35%, for example in the case of the preferred embodiment an area percentage of 30% +/- 3%.

For lateral guidance or adjustment of the movable side frame member 12 are at the bottom of one or both sliding side frame parts 12, preferably only on the centering device 44 supporting side frame member 12, optionally positionally adjustable guide roller support 92; 93; 94 attached, on which guide rollers 96; 97; 98; 99 are mounted with vertically arranged axis of rotation, which are supported on both sides of the guide rail 58 at its narrow side and thus allow a guide or adjustment of the movably mounted side frame member 12, see. especially Fig. 17 , The guide roller carrier 92 carries an internally arranged guide roller 96, the guide roller carrier 93 an outwardly disposed guide roller 97 and the guide roller carrier 94 both an internally arranged guide roller 98 and an externally arranged guide roller 99th

LIST OF REFERENCE NUMBERS

01

Printing unit, printing press, web-fed rotary printing press, printing tower

02

frame

03

Double printing

04

printing unit

05

Substrate, web, paper web

06

Cylinder, printing cylinder, transfer cylinder, rubber cylinder

07

Cylinder, printing cylinder, forme cylinder, plate cylinder

08

Inking unit, roller inking unit, short inking unit, pump inking unit

09

Dampening unit, spray dampening unit

10

-

11

Side frame module, side frame part

12

Side frame module, side frame part

13

Base

14

Bearing unit, linear bearing

15

-

16

Actuator, hydraulic piston

17

-

18

-

19

traverse

20

-

21

opening

22

Cylinder-piston arrangement

23

cylinder

24

piston rod

25

-

26

bolt

27

Bearing device, swivel bearing

28

Bearing device, swivel bearing

29

hydraulic supply

30

-

31

Closing device, swing clamp

32

Cylinder, pull cylinder

33

clamping arm

34

piston rod

35

Opening, breakthrough

36

mounting flange

37

Through Hole

38

screw

39

connection

40

-

41

connection

42

management

43

management

44

Centering device, prism device

45

-

46

receiving part

47

receiving opening

48

insertion

49

insertion nose

50

-

51

stop device

52

stop element

53

stop element

54

Running shoe arrangement

55

-

56

screw

57

carrier

58

guide rail

59

Running Shoe support

60

Through Hole

61

running Shoe

62

casing

63

web

64

Through Hole

65

-

66

role

67

Group (66)

68

Group (66)

69

Wiper device, wiper seal

70

-

71

Wiper lip, sealing lip

72

Leadership carrier

73

Leadership carrier

74

Leadership carrier

75

-

76

leadership

77

leadership

78

leadership

79

leadership

80

-

81

sliding block

82

shoe

83

Sliding shoe carrier

84

screw

85

-

86

Shoe base

87

Overlay

88

sliding surface

89

deepening

90

-

91

-

92

Leadership carrier

93

Leadership carrier

94

Leadership carrier

95

-

96

leadership

97

leadership

98

leadership

99

leadership

11a

Part, side frame half

11b

Part, side frame half

12a

Part, side frame half

12b

Part, side frame half

Claims (15)

1. Printing unit (01) having at least two side frame parts (11; 12) alterable in distance relative to each other in a horizontal direction, which in each case include at least a printing couple (04) or parts of a printing couple (04) and of which at least one side frame part (12) is movable between a closed operating position, in which the side frame parts (11; 12) are brought together and fixed to each other, and an open position, in which they are spaced from one another, where for the mutual fixing of side frame parts (11; 12) at least one closing device (31) is provided, which comprises a cylinder (32) harnessing the side frame parts (11; 12) in the closed functional position, the cylinder (32) having a piston rod (34) carrying out a stroke movement, characterized in that the closing device (31) is designed as a pivoting tensioner (31), the piston rod (34), additionally to the stroke movement, being arranged carrying out a swivelling movement around a longitudinal axis of the piston rod (34).
2. Printing unit according to Claim 1, characterized in that the cylinder (32) is a traction cylinder (32) pulling the side frame parts (11; 12) into the closed functional position.
3. Printing unit according to Claim 1, characterized in that the cylinder (32) is acted upon by pressure in the closed functional position during printing.
4. Printing unit according to Claim 1, characterized in that the at least one closing device (31) has at least one swivellable tensioning arm (33).
5. Printing unit according to Claim 4, characterized in that the swivellable tensioning arm (33) is arranged on the piston rod (34) of the traction cylinder (32).
6. Printing unit according to Claim 5, characterized in that the swivellable tensioning arm (33) is rigidly connected to the piston rod (34) of the traction cylinder (32).
7. Printing unit according to Claim 6, characterized in that the piston rod (34) of the traction cylinder (32) is designed to be rotatable around its axis.
8. Printing unit according to Claim 7, characterized in that the traction cylinder (32) is designed in order to use a part of the movement of the traction cylinder (32) as a rotational movement for rotating the piston.
9. Printing unit according to one of the preceding claims, characterized in that the traction cylinder (32) is a hydraulically operating traction cylinder (32).
10. Printing unit according to Claim 1, characterized in that a number of closing devices (31) are arranged one above the other.
11. Printing unit according to Claim 10, characterized in that all closing devices (31) are jointly operable.
12. Printing unit according to one of the preceding claims, characterized in that the printing unit (01) is designed as a printing tower (01) having four double printing couples (03) arranged one above the other, one side frame part (11) being designed to be fixed and one side frame part (12) being designed to be movable.
13. Printing unit according to Claim 12, characterized in that in each case at least two closing devices (31) are provided on each of the two side frame parts (11; 12).
14. Method for fixing at least two side frame parts (11; 12) alterable in distance relative to one another in a horizontal direction, of a printing unit (01), which in each case include a printing couple (04) or parts of a printing couple (04) and of which at least one side frame part (12) is movable between a closed operating position, in which the side frame parts (11; 12) are brought together and fixed to each other, and an opening position, in which they are spaced from one another, characterized in that for the mutual fixing of side frame parts (11; 12) at least one closing device (31) designed as a swivelling tensioner (31) is actuated, which comprises a cylinder (32) pretensioning the side frame parts (11; 12) in the closed operating position, the swivelling tensioner (31) with its piston rod (34) together with tensioning arm (33) penetrating openings (35) or perforations (35) of the side frame part (12), on actuation of the cylinder (32) the tensioning arm (33) being swivelled such that the tensioning arm (33) engages behind the corresponding side frame part (12), in the further course of the piston movement the tensioning arm (33) swivelled in its tensioning position being drawn to the cylinder (32), the movable side frame part (12) being pulled into its closed position.
15. Method according to Claim 14, characterized in that by means of a cylinder/piston arrangement (22) for the horizontal process of the distance-variable side frame part (12), the exact positioning of the movable side frame part (12) is assisted during operation.

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