EP2176069A1

EP2176069A1 - Printing cylinder with an automatically activated clamping device

Info

Publication number: EP2176069A1
Application number: EP07821157A
Authority: EP
Inventors: Andreas Zahnd
Original assignee: Wifag Maschinenfabrik AG
Current assignee: Wifag Maschinenfabrik AG
Priority date: 2007-05-25
Filing date: 2007-10-10
Publication date: 2010-04-21
Also published as: WO2008145198A1; EP1995066A2; DE102007024426A1; EP1995066A3

Abstract

The invention relates to a printing cylinder with an automatically activated clamping device for a printing plate that may be placed on the outer circumference of the printing cylinder, said printing cylinder comprising: a) an axially extending clamping channel (1a, 1b, 2a, 2b) having a channel opening on the outer circumference of the printing cylinder (1, 2), b) a clamping body (24) that forms a clamping gap in the clamping channel with a counter surface (1a, 2a) and that is movable in order to perform an advancing movement towards the counter surface (1a, 2a) and a withdrawal movement away from the counter surface, c) an activation device (19-21) that is movable relative to the clamping body (24) for the activation thereof, d) and a coupling (20, 27) that couples the clamping body (24) mechanically to the activation device (19-21) such that the movement of the activation device (19-21) causes the advancing or withdrawal movement of the clamping body (24).

Description

Printing cylinder with automatically operable clamping device

The invention relates to a printing cylinder with an automatically operable clamping device for clamping a pressure pad, which can be placed on an outer periphery of the printing cylinder. The printing cylinder is part of a rotary printing press or intended for installation in a rotary printing machine. It is preferably a printing cylinder for a web-fed printing press, particularly preferably for an offset printing press, for example a newspaper offset printing press.

Pressure cylinders have for the attachment of pressure linings axial clamping channels or even a single clamping channel. The pressure linings are bent at their leading and trailing ends, so that at the respective end serving as a clamping flange short turn is obtained, with which the pressure pad protrudes into a clamping channel and is clamped there by means of a clamping device.

A clamping device is known for example from DE 10 2005 029 167 Al. The clamping device has in the clamping channel movably mounted clamping body, which are tensioned by means of spring force against a counter surface to form a nip for the removal of a pressure pad. When mounting the pressure linings whose turns are pressed into the clamping gaps thus formed, the clamping body yielding against the spring force. For the change of the pressure linings the lugs are pulled out of the clamping gaps, in each case the forces acting there due to the spring force clamping forces must be overcome. The clamping force proves to be problematic when removing the bends by means of a change machine for an automatic change of printing pads, especially when the automatic change machine holds the respective pressure pad by means of pneumatic suction. This problem is met with actuators by means of which the clamping body of the counter surface, with which they each form the nip, can be turned off. An example of such an actuator is known from DE 102 38 105 Al, according to which the Abstellbewegung is effected by a pneumatic actuating means. The actuator is structurally complex and expensive not least because of the required pneumatic connections. Another problem is the susceptibility to dirt.

It is an object of the invention to provide a printing cylinder with an automatically operable clamping device for one or more printing pads, which is structurally simple and reliable.

The invention relates to a printing cylinder with an automatically operable clamping device for a clamping attachment of one or more pressure pads on an outer circumference of the printing cylinder. If the printing cylinder is preferably a printing form cylinder, then for example 4, 5 or 6 or even more printing layers can be arranged next to one another on the circumference of the cylinder and one or two or even more printing layers can be arranged one behind the other in the circumferential direction. Preference is given to 4x1 or 4x2 or 6x2 configurations, ie printing forme cylinders having four printing forms axially adjacent to one another, the circumference of the cylinder being one or two printing plates in length, or a printing forme cylinder for axially juxtaposed six and circumferentially two printing plates. In the above, it will be assumed in the explanation of the configurations of printing plates, which, viewed in the longitudinal direction of the cylinder, respectively have the width of a printed page, preferably a newspaper page. Instead of such single-sided printing plates, printing forms of double width, in the so-called panorama format, can also be used. In the case of an offset printing press, the printing cylinder can also be a transfer cylinder, in particular a blanket cylinder, which forms a printing gap for a continuous web with an impression cylinder.

The pressure cylinder has at its outer periphery an axially extending clamping channel with a located at the outer periphery of the pressure cylinder channel opening through which a in

Direction of rotation of the printing cylinder leading and a subsequent turn of the same

Pressure pads or two circumferentially successively arranged pressure pads are insertable. The pressure cylinder may have a plurality of such clamping channels offset from one another in the circumferential direction, but printing cylinders which have only a single clamping channel or two clamping channels offset in the circumferential direction are preferred. The single clamping channel or the plurality of clamping channels preferably extends or extend axially over the entire length of the printing cylinder that can be covered by pressure linings.

In the clamping channel, a clamping body is arranged, which forms with a mating surface, for example, a channel wall of the printing cylinder, a nip for a Abbug a pressure pad. The clamping body is in the clamping channel for the execution of a directed towards the counter surface feed movement and a directed away from the counter surface Abstellbewegung back and forth. Preferably, the clamping body is mounted to move back and forth as a whole. Alternatively, however, the use of a form-elastic clamping body in question, which has sufficient spring stiffness sufficient spring stiffness to produce in the nip a clamping force required for the terminals of a Abbugs. Preferably, a plurality of clamping bodies each of the same type are arranged axially spaced from one another in the clamping channel in order to jointly clamp the bend of the same pressure lining. If, as preferred, several pressure linings can be arranged axially next to one another on the printing cylinder, at least one such clamp body is arranged for each of the pressure linings. In preferred embodiments, in the clamping channel per turn, i. for each leading and for each trailing Abbug, each arranged at least one such clamp body.

The printing cylinder further comprises an actuating device, which is movable relative to this for the actuation of the clamping body. If a plurality of clamping bodies are arranged in the clamping channel, then preferably at least the clamping bodies which clamp the same turn can be actuated by means of the actuating device. If a plurality of pressure linings can be arranged axially next to each other on the printing cylinder, then preferably the

Clamping for two or more pressure pads are operated with the same actuator. In still another preferred development, in the clamping channel

Clamping body for a leading turn and clamping body for a trailing

Abbug or in each case a plurality of forward and a plurality of trailing bends are arranged all clamp body of the clamping channel to be operated with the same actuator. It is also possible, for example, to provide two actuating devices which each extend from one of the two axial ends of the printing cylinder to at least substantially to the axial center. Such a splitting is particularly suitable for axially wide pressure cylinder in question. It can also be provided two axially continuous actuating means, one for the clamping body for the leading and the other for the clamping body for the trailing turns. If the pressure cylinder comprises a plurality of clamping channels, the above statements apply equally to the further clamping channel or possibly several further clamping channels, with at least one separate actuating device being provided for each clamping channel.

Finally, the printing cylinder comprises a coupling which mechanically couples the clamping body or the plurality of clamping bodies with the actuating device, so that the movement of the actuating device brings about the advancing movement or, more preferably, the stopping movement. The word "or" is used here as well as in any other place in the usual logical sense, thus encompassing the meaning of "either .... or" and also the meaning of "and", as far as the respective context is not unmistakably one results in limited meaning. In connection with, for example, the parking or advancing movement, this means that according to the invention, an actuating device may be provided which causes only the Abstellbewegung, alternatively, an actuator may be provided which causes only the Zustellbewegung and in yet an alternative, an actuator may be provided that can cause both movements.

According to the invention, one or more clamping bodies of a clamping channel is thus automatically actuated by means of a relative to a cylinder body of the printing cylinder and the clamping body (s) movable actuator, wherein the relative movement of the actuator by means of a mechanical coupling to the clamping body or the clamping body transmitted and by means of the coupling, the feed movement or preferably the Abstellbewegung of the or the clamping body (s) is effected. In the case of a preferred motion conversion, the movement of the Actuator and thereby caused movement of the clamp body or the clamp body is not rectified.

If in the following preferred features of the invention will be described only by the example of a single clamp body, the respective statements apply mutatis mutandis to further or all other clamp body of the clamping channel, if not indicated differences.

The mechanical coupling comprises on the side of the actuating device an actuating coupling member and on the side of the clamping body, a clamping body coupling member, which is preferably arranged on the clamping body and in particular in one piece with the

Clamping body may be formed so that in coupling engagement of the coupling members of the

Actuating the force required for the movement of the clamp body is transmitted directly to this. Although less preferred, the sprag coupling member may also be coupled to the sprag body via one or more intermediate members to effect the stopping or advancing movement.

The engagement of the coupling members may be purely positive. However, more preferably, the engagement includes a frictional engagement, at least. Particularly preferably, the force of the actuating coupling member is both positively and frictionally transmitted to the sprag coupling member.

The mechanical coupling can be formed in particular as a cam gear. In such embodiments, the coupling comprises a guideway and an engagement member such that movement of the actuator in a guide engagement of the engagement member with the guideway causes movement of the clamp body. In preferred simple embodiments, the engagement member with the guide track in a sliding contact, so that the guide engagement is based on both frictional engagement and positive engagement. In such embodiments, the actuating coupling member, the guide rail and the clamping body coupling member form the engaging member. More preferably, the actuating coupling member forms the engaging member and the clamping body coupling member the guideway. In preferred embodiments, the actuating device comprises a transmission structure extended along the clamping channel, preferably at a side edge of the clamping channel, and the actuating coupling member, which is permanently coupled to the clamping body coupling member or, more preferably, coupled by the movement of the transmission structure, for movement transferring the transfer structure to the clamp body, which also includes the preferred case of motion conversion. The transmission structure is advantageously axially, ie, at least substantially parallel to the axis of rotation of the printing cylinder, reciprocally movable. The transmission structure may be a pure tension structure, for example a traction cable. However, the transfer structure is more preferably a shear-resistant push structure. It can be shaped in particular as a slim push rod. The transmission structure is axially preferably guided on several sides, preferably over its entire axial length.

In preferred embodiments, the actuating coupling member is fixedly connected to the transmission structure. The connection is fixed in such embodiments, at least in and against the direction of movement of the transmission structure. Conveniently, the actuating coupling member is fixedly arranged on the transmission structure. In particular, it can protrude therefrom transversely to the direction of movement of the transmission structure, wherein it preferably forms the already mentioned engagement element for the likewise mentioned guideway.

Although it is basically conceivable that the actuating device is moved by means of a drive arranged on or in the printing cylinder, a drive by means of which the movements of the actuating device are generated is preferably arranged axially next to the printing cylinder, preferably opposite an axial end of a printing section of the printing cylinder. A preferred drive comprises at least one driven member arranged in such a way, but preferably also a pneumatic, hydraulic or electric drive close to and individually for the printing cylinder or a common drive for a plurality of printing cylinders of a printing unit with a plurality of pressure cylinders according to the invention. The actuating device has a coupling member at one axial end of the pressure cylinder. The output member of the drive causes in a clutch engagement with this coupling member, the movements of the actuator. Thus, for example, a transversely directed to the rotational axis of the printing cylinder movement of an output member in the clutch engagement can be converted into an axial movement of the transfer structure. More preferably, however, the direction of movability of the output member and the direction of movability of the actuator, preferably of said transmission structure, are the same, so that the output member simply moves with it the actuating means, preferably the said transmission structure, thus following the output member.

The coupling member may be arranged for engagement with the driven member as pointing radially to the axis of rotation of the printing cylinder web at the axial end of the printing cylinder and extend around the axis of rotation only over an arc section or circumferentially. The clutch engagement causes the use of such a web having coupling member by pressure against the web, preferably axial pressure, the movement of the actuator. If the output member of the drive is movable transversely to the axis of rotation of the printing cylinder, the coupling member of the actuator can be formed by an arc portion of a cone or a cone completely rotating around the axis of rotation to transmit the transverse movement of the output member in an axial movement of the actuator.

An axially movable output member and arranged at the axial end of the printing cylinder coupling member with an axially inner with respect to the pressure cylinder web and an axially outer web, between which the output member engages, is a particularly preferred option to move by means of an axially reciprocable Actuator one or more clamp body for one or more leading turns by axial movement of the actuator in one direction and one or more clamp body for clamping one or more trailing turns by axial movement of the actuator in the other direction or preferably off.

The pressure cylinder comprises a cylinder body and preferably a filler used to form the clamping channel in the cylinder body. The cylinder body has at its outer periphery an outwardly preferably open recess into which the Filler is accordingly inserted from the outer periphery, so that it together with the cylinder body forms the outer periphery of the impression cylinder, wherein the outer periphery formed by the filler in the circumferential direction compared to the peripheral portion of the cylinder body is very short. The clamping channel has a first channel wall and a second channel wall, which face each other in the circumferential direction of the pressure cylinder and each extending in the direction of the channel opening. Preferably, they each extend to one of the two outer edges of the clamping channel delimiting the channel opening.

In a preferred embodiment, the filler piece on a receptacle which faces a wall of the cylinder body is open and in which the clamping body is at least partially received. Preferably, the filler is on the side at which it has the receptacle, on the wall of the cylinder body, so that the wall of the cylinder body in contact with the filler delimits the receptacle. By arranging the clamping body in a receptacle of the filling piece, which is open towards a wall of the cylinder body, the cross-sectional area of the filling piece can be reduced in comparison with a filling piece surrounding the same portion of the clamping body around it. The cross-sectional area of the recess provided for the filler piece in the cylinder body can be correspondingly reduced and the flexural rigidity can be increased for a given diameter. By the clamping body protrudes into a receiving space, which form the filler and the cylinder body together, the filler with its open receptacle and the cylinder body with the oppositely facing wall, the filler and thus the recess in the cylinder body in the radial direction to the axis of rotation of the printing cylinder be relatively flat. Accordingly, little material has to be removed from the cylinder body at the region contributing in particular to the flexural rigidity near the outer circumference for the recess.

In order to create the receptacle, the filler is preferably recessed on the corresponding side, so the receptacle shaped as a recess. With a filling piece which has a local recess for the clamping body or a plurality of only local cutouts the plurality of clamping bodies, a greater part of the bending stiffness lost by the recess of the cylinder body can be recovered than with a filling piece. which is supported to create the recording or multiple shots for several clamp body, for example, only local spacers on the opposite facing wall of the cylinder body, although such a design would also be possible in principle. The recess is preferably obtained by a material-removing machining of the filler. The recess or a plurality of recesses is or are at least substantially axially only as wide as a single or two juxtaposed (s) clamping bodies.

The receptacle, preferably recess, is preferably provided on an underside of the filler piece facing away from the channel opening.

Preferably, the recess passes through the filler piece from a front side having the second channel wall to a rear side of the filler piece facing away from the second channel wall. A continuous recess in the circumferential direction of the printing cylinder facilitates the incorporation by means of a machining of the filler. The recess is preferably rectangular in cross section. A recess penetrating the filler in the circumferential direction of the pressure cylinder creates the possibility of access to the clamping body coupling member at the rear side of the filler in a space-saving manner.

In preferred embodiments, the cylinder body forms the first channel wall and the filler the second channel wall. This also contributes to the cross-sectional reduction of the filler and, accordingly, to the reduction of the required material for the creation of the clamping channel material weakening of the cylinder body. If the cylinder body forms one of the channel walls, it is advantageous if the relevant channel wall does not form an undercut viewed from the channel opening but points at least substantially radially to a rotation axis of the pressure cylinder in the cross section of the clamping channel or at a small distance parallel to a radial the axis of rotation of the printing cylinder extends.

In preferred embodiments, the clamping body has a support section which partially, preferably with a predominant part of its cross-sectional area or its volume recorded in the recording. From the support portion protrudes a clamping portion in the direction of the channel opening. The support section and the clamping section can form an angle when seen in cross-section, preferably an at least substantially right angle. Preferably, a corresponding angle piece forms the clamping body. The clamping portion is seen in cross section advantageously very narrow and may for example have a thickness of 1 mm to 5 mm. A thickness in the range of 1 to 3 mm is preferred. The smaller the thickness of the clamp body is, the narrower the gap bounded by the first and second duct wall can be.

A bending of the clamping body, in particular the formation of the clamping body as an angle, allows a particularly space-saving storage of the clamping body and radially to the axis of rotation of the impression cylinder seen flat cross-sectional shape of the filler. Furthermore, by means of such a geometry and finger-like thin protruding clamping section, the width of the clamping channel measured in the circumferential direction can advantageously be small in the channel region adjoining the channel opening. Since the filler as such contributes to the flexural rigidity of the printing cylinder, conversely, the free spaces in the cross section of the printing cylinder due to the channel gap affect the flexural rigidity, the flexural rigidity can be increased by such a design again.

Preferred embodiments, it corresponds to when the clamping body arranged in the clamping body in the region of their clamping gaps overlap each other in the circumferential direction at least partially and not in the circumferential direction, d. H. in an axial projection or view into the clamping channel, are arranged side by side to clamp a leading and a trailing pressure pad end. The overlapping arrangement allows a particularly narrow gap between the channel walls, which adjoin the channel opening. Such clamping devices are described in PCT / EP2007 / 006193, which is incorporated herein by reference.

In preferred embodiments, the pressure cylinder comprises a pressing device, which exerts a force on the clamping body, which causes a clamping force in the clamping gap. The

Pressing device preferably exerts a spring force on the clamping body. The

Pressing device may in particular be a single mechanical spring or of several mechanical springs are formed. A pneumatic spring is also usable. In principle, it is also conceivable that the pressing device is not a spring device, but has a drive for generating the clamping force, for example an electric drive.

The pressing device is preferably received in the filler or supported on the filler. The pressing device can for example be supported only on the filler, but not included in the filler or absorbed only in the filler, but not supported on it or, and this corresponds to preferred embodiments, both supported on the filler and be included in the filler. Preferably, at least a predominant volume fraction of the pressing device is accommodated in the filling piece. The pressing device preferably acts on the filling piece within the recess or a receptacle formed differently from the filling piece. In such embodiments, a region of the clamping body, in which the force of the pressing device is introduced into the clamping body, is thus accommodated in the receptacle.

The clamping body is preferably tiltably mounted in the clamping channel. The movement during clamping, namely the feed movement for closing and the Abstellbewegung for opening the nip, at least for increasing and decreasing the clamping force, is accordingly a tilting movement about a tilt axis. A tiltable clamping body requires in comparison to, for example, a translationally movable clamping body, but can also be used alternatively, less space for the execution of the parking and delivery movement.

The clamping body is preferably a rigid body, which does not change its shape during the delivery and Abstellbewegung to and from a mating surface with which it forms the nip. Alternatively, however, it can also be elastic in shape and generate the clamping force as elasticity. In such embodiments, for example, can be dispensed with a pressing device. On the other hand, an internally rigid clamping body is advantageous in order to be able to ensure a desired clamping force accurately and reproducibly in all operating states. If the clamping body is mounted tiltably, it preferably has on its outer surface an outwardly bulging rounding over which it is supported on the printing cylinder, so that in contact of the rounding with the printing cylinder, the tilting axis of the clamping body is formed. The clamping body thus rolls over a circular arc section on a wall of the printing cylinder. The rounding is preferably formed on a side remote from the filler piece and preferably also from the channel opening side of the clamping body, which preferably faces the axis of rotation of the pressure cylinder. The rounding may extend from such an underside of the clamp body over a larger angle section of 40 ° or more, for example over more than 60 ° or more than 90 °. The clamping body can contact a bottom of the recess of the cylinder body and at the same time an upstanding wall of the recess in the region of the rounding. The outwardly bulging, with respect to the opposite surface of the impression cylinder convex curve allows to form the standing in contact with the round counter surface as a smooth, flat surface. This facilitates the production and in particular avoids indentations and concomitant stiffness reductions of the printing cylinder. The rounding preferably has a curvature radius of at least 5 mm, more preferably at least 10 mm, in its arc section that is in contact with the counter surface during the tilting movement. Advantageously, connecting surfaces, for example continuously further rounded or planar surfaces, adjoin the round contact section. The rounded Kontaktab section thus protrudes in preferred embodiments not in the manner of a raised nubs from a base of the clamp body, but is itself part of such a continuous, preferably bulbous base. If the clamping body has the support section and the clamping section pointing at an angle to the support section, the rounding or at least a major part of its arc is formed on the support section, but in likewise preferred embodiments it can also extend a little from there to the channel opening.

In preferred embodiments, a further clamping body is arranged in the clamping channel, which forms a clamping gap for clamping the other end of the same pressure pad or another pressure pad, which is offset in the circumferential direction on the printing cylinder can be pulled. Apart from reversing the direction during the closing and closing movement, the clamping bodies can be used for clamping the respective end of the same pressure pad or the pressure pads be the same. The properties disclosed for one of the clamping bodies advantageously also have the other clamping body individually or in combination. Thus, in particular, as described, both clamping bodies can have a supporting section and an angularly pointing clamping section, for example each shaped as an angle profile, or tiltably mounted, in particular having the rounding described. They can be completely identical in form. In a preferred embodiment, they differ in shape only in adaptation to the actuator for automatic shut-off for releasing the clamping engagement with the pressure pad to remove it from the printing cylinder, or for automatic delivery. In preferred embodiments, in particular also a pressing device of the type described is provided for the further clamping body. It is particularly advantageous if both pressing devices are supported on the filling piece or are accommodated with at least a predominant volume fraction in each case in the filling piece. Preferably, however, there is a difference in such embodiments when using a spring member as a pressing device with regard to the initiation of the spring force, which is introduced in the one clamping body in the region of the support portion and the other clamping body in the region of the clamping portion.

Advantageous features are also described in the subclaims and the combinations of several subclaims.

Hereinafter, embodiments of the invention will be explained with reference to figures. The features disclosed in the exemplary embodiments form each individually and in each combination of features the subject-matter of the claims and also the embodiments described above. Show it:

1 shows a printing cylinder with a cylinder body and a to form a

Clamping channel inserted into the cylinder body filler,

FIG. 2 shows a longitudinal section of the filling piece with a clamping device and a register device,

Figure 3 shows the cross section B-B of Figure 1 with a first clamping body for

Clamping one end of a pressure pad, 4 shows the cross section CC of Figure 1 with a second clamping body for

Clamping the other end of the pressure pad, Figure 5 shows the cross section A-A of Figure 1,

Figure 6 shows the cross section D-D of Figure 1 with a register device for the

Druckbelag, Figure 7 shows the register device in a view in the circumferential direction of

Pressure cylinder,

FIG. 8 shows the register device in a side view,

FIG. 9 a detail of the register device in a plan view,

FIG. 10 shows a tool for the lateral adjustment of the register device;

11 shows the tool in a view on an end face,

FIG. 12 shows the register device with the engaging tool in one

Cross-section,

FIG. 13 shows the register device with the engaging tool in a view in FIG

Circumferential direction of the impression cylinder,

FIG. 14 shows the tool in engagement with the register device in a plan view;

FIG. 15 shows a printing cylinder with a clamping device and a mechanism for automatic actuation of the clamping device,

FIG. 16 shows a first clamping body of the clamping device of FIG. 15 in one

Cross-section,

FIG. 17 a second clamping body of the clamping device according to FIG. 15 in one

Cross section and

FIG. 18 shows a pair of first and second clamping bodies and the mechanism of FIG. 15 in a view in the circumferential direction of the impression cylinder,

FIG. 19 shows a further pair of first and second clamping bodies and of the

Mechanism of Figure 15 in a view in the circumferential direction of

Printing cylinder and Figure 20 is a detail of Figure 15.

Figure 1 shows a printing cylinder in a view and partly in section along a rotation axis L of the cylinder. The printing cylinder has a cylinder body 1, left and right each one of the cylinder body 1 projecting cylinder pin for the pivot bearing and a on the outer circumference in the cylinder body 1 inserted filler 2 to form a clamping channel for pressure pads. The cylinder body 1 has measured between the cylinder pin an axial width corresponding to four printed pages of a printed product, which can be produced by means of a rotary printing machine, which includes the printing cylinder 1, 2 or for which the printing cylinder is provided. The printed products may in particular be newspaper copies. The printing cylinder is a printing form cylinder, the pressure pads according to printing forms. A total of four pressure pads can be mounted on the outer circumference of the printing cylinder, that is, the pressure cylinder has a circumference corresponding to a pressure side.

The filler 2 is arranged in a recess which is incorporated on the outer periphery in the cylinder body 1. The recess and the filler 2 extend over the entire axial length of the cylinder body 1. Figure 1 shows only a portion of the length of the cylinder body 1, which corresponds approximately to the width of a pressure side and, accordingly, a single-side pressure pad. Overall, on the cylinder body 1 as I said four easy wide pressure pads aufziehbar or alternatively two double-wide pressure pads in the so-called panoramic format.

FIG. 2 shows the filling piece 2 alone in the longitudinal section corresponding to a pressure side. The filler piece 2 forms a bearing device for a clamping device for clamping the ends of the pressure pads and also for a register device for adjusting the side register of the pressure pads. All clamping body of the clamping device and the register body of the register device are held on the filling piece 2. The filler 2 forms with the clamping device and the register means a mounting unit by the components of the clamping device and register device are mounted on the filler 2 and the filler 2 is inserted with the pre-assembled components of the clamping device and register device in the recess of the cylinder body 1 and secured therein. The filler 2 is fitted in a form-fitting manner in the recess of the cylinder body 1 and fastened by means of fastening means, fastening screws in the embodiment. The attachment can be seen in Figures 1 and 5. The clamping device comprises for each of the pressure pads a plurality of first clamping body 4 and a plurality of second clamping body 4. The first clamping body 4 are for clamping a first end of the respective pressure pad and the second clamping body 4 are provided for the other, second end of the same pressure pad. The clamping body 4 are arranged in recesses 2b of the filler 2. The recesses 2b are at an underside of the filler 2, which faces the axis of rotation L of the printing cylinder 1, 2, incorporated and open at the bottom. The recesses 2b take in each case two clamping bodies 4, namely in each case a first clamping body 4 and in each case a second clamping body 4. In the recesses 2b each two clamping body 4 are arranged axially close to each other. The recesses 2b have axially measured in each case a width which is slightly larger than the sum of the axial widths of the respectively received clamping body. 4

For the adjustment of the side register of the printing pads a register device 9 is provided per printing pad, each in the form of a register body. The register devices 9 are mounted separately from each other individually axially adjustable, the storage is realized as already mentioned on the filler 2. The filler 2 has for each one of the register means 9, a further recess 2c, in which the respective register means 9 is held purely by friction only by clamping. As such, the register devices 9 have no engagement means which cooperate with the filler 2 or the cylinder body 1 in adjusting the axial position of the respective register device 9. Accordingly, the register means 9 do not project any shear stressable engaging means into the filler 2 or the cylinder body 1 nor any such engagement means from the filler 2 or the cylinder body 1 into any of the register means 9. The register means 9 are axially moved by means of an externally engaging tool adjusted.

Figure 3 shows in cross-section BB of Figure 1 one of the first clamping body 4, and Figure 4 shows in cross section CC one of the second clamping body 4, which are arranged in pairs side by side in one of the recesses 2b. The cylinder body 1 and the filler 2 form the clamping channel for the pressure pads in a particularly space-saving manner. In FIG. 3, a first end of a pressure pad 3 is clamped in a clamping gap formed by the cylinder body 1 and the first clamping body 4, and in FIG other, second end of the same pressure pad 3 in a formed between the filler 2 and the second clamping body 4 second clamping gap clamped.

The clamping channel has on the outer circumference of the printing cylinder 1, 2 a channel opening along which the outer circumference of the printing cylinder 1, 2 passes over one edge with a small radius of curvature in each case adjoining the respective edge channel walls Ia and 2a, the direction in extent facing each other. The cylinder body 1 forms the channel wall 1a and the filler 2, the channel wall 2a. The channel wall 1 a forms a counter surface for the first clamping body 4 in the clamping gap, while the channel wall 2 a forms such a counter surface in the clamping gap for the second clamping body 4. The clamping channel is from the channel opening up to and including the two clamping gaps over the entire axial length in each case symmetrically to a through the clamping channel and the channel opening extending symmetry plane. Through the plane of symmetry extends in each cross section, the radial R on the axis of rotation L of the printing cylinder. The channel walls 1a and 2a extend parallel to the symmetry plane containing the radial Rs. The channel walls 1a and 2a therefore extend in a good approximation orthogonal to a tangent at the respective edge to the outer circumference of the printing cylinder tangent. The clamped to the ends of the pressure pad 3 are shaped in a good approximation corresponding to each as a right-angled Abbug. Printing coverings 3 of this type are disclosed, for example, in DE 10 2005 029 167 A1, which is referred to in this regard. Thus, the turn at the leading end or the turn at the trailing end of the pressure pad 3 as shown in the embodiment simply plan or in an projecting between the channel walls Ia and 2a section be angled again, for example in the direction of the outer periphery of the impression cylinder 1, 2nd resting region of the printing pad 3 or away from it in the direction of the opposite channel wall 2a or Ia. By repeated bending within at least one of the two turns of the pressure pad 3 can be clamped by clamping by means of the clamping body 4 of the pressure pad 3 in the circumferential direction. In a Abbug, which is not angled again, but everywhere just flat, such a tensile stress can be generated by clamping alternatively by means of an edge or round curvature, seen in cross section between the channel opening and the contact point of Abbug and clamp body 4 can be shaped. When turning in such an embodiment obtains a lever arm which extends from the contact point to the edge or curvature located inside the clamping channel. Such a curvature or edge within the clamping channel can in principle also be provided in addition to an inwardly angled turn. The intended for the formation of a lever edge or rounding or curvature may advantageously be provided on the filler piece 2.

The clamping bodies 4 each have their own pressing device 7 is assigned, which is formed as a spring member, in the embodiment as a mechanical spring to press the respective associated clamping body 4 against the channel wall Ia or the channel wall 2a and in the nip for clamping the Druckbelagendes required To generate clamping force. The pressing means 7 are arranged in the form of coil springs and the effect as compression springs. The pressing devices 7 are based on the filling piece 2. They are accommodated in each case in a cavity of the filler piece 2 and act in the case of the second clamping body 4 in the region of the recess 2b on the respective associated clamping body 4th

The clamping bodies 4 are individually positioned and held on the filling piece 2, namely in each case by means of a positioning element 8. The positioning elements 8 are fixedly connected to the filling piece 2, screwed in the exemplary embodiment, and each protrude into the recess 2b with a shank portion. They pass through in the region of the recess 2b the respective clamping body 4, which has a passage at the appropriate point. The passages of the clamping body 4 have in comparison with the passing shaft portion to an excess, so that the clamping body 4 is positioned and held on the filler 2 by means of the positioning elements 8, the necessary for introducing the ends of the respective pressure pad 3 Abstell- and Zustellbewegungen of the channel wall Ia or 2a away, but not to be obstructed.

The recesses 2b of the filler 2 is a wall Ib of the cylinder body 1 facing. The wall Ib forms a bottom of the incorporated in the cylinder body 1 for the filler 2 recess. In the exemplary embodiment, the filler 2 axially contacts the left and right of the recesses 2b each of these wall Ib. The wall Ib limits the recesses 2b. The wall Ib is over the entire axial length of the recess of the Cylinder body 1 and over its entire, measured in the circumferential direction of the printing cylinder 1, 2 width flat and smooth. The channel wall 1a extends orthogonal to the wall 1b. In the region of the recesses 2b, the wall 1b also forms a channel wall. The channel wall 1a is once set down between the bottom of the clamping channel and the channel opening by widening in the form of a small step once in its vicinity of the channel opening, substantially the thickness of the end of the pressure pad to be clamped 3. The channel walls Ia and 2a Furthermore, each have in the region of that clamping body 4, with the respective channel wall Ia or 2a forms no nip, a recess into which the respective clamping body 4 can escape during its Abstellbewegung, as better seen in Figures 16 and 17 can be seen.

The clamping body 4 each have a support portion 5 and an angle to the support portion 5 facing clamping portion 6. The clamping portion 6 protrudes like a finger from the support portion 5 in the direction of the channel opening. In cross section, the clamping body 4 each form an angle profile. The support section 5 protrudes into the recess 2b and is received therein with at least a predominant volume fraction. The clamp body 4 have at their side facing away from the channel opening undersides each seen in cross-section on a bulging bulging rounding, with which they are supported on the cylinder body wall Ib and form in contact with the wall Ib a tilting axis for the clamping body 4. The tilting axis is at least substantially radially below the clamping gap of the clamping body 4, that is formed at least substantially at the same rotational angular position as the clamping gap, based on the axis of rotation L of the printing cylinder 1, 2. The clamping body 4 are rigid tilting pieces.

In the case of the first clamping bodies 4 (FIG. 3), the respective associated pressing device 7 acts on the clamping body 4 in the region of the clamping section 6. In these clamping bodies 4, the pressing devices 7 are radially approximately at the height of the clamping gap on the side of the clamping section 6 opposite the clamping gap acting arranged. In the case of the second clamping bodies 4 (FIG. 4), the respective associated pressing device 7 acts on the supporting section 5. The two connections of the pressure lining 3 are provided with a recess in the area of the respectively non-clamping clamping body 4 and accordingly by the non-clamping clamping bodies 4 and in the case the first clamp body 4 also of their Andrückeinrichtungen 7 free. The pressing devices 7 of the second clamping body 4 act on the support section 5 in the region of the recesses 2b and on the respective clamping body 4 via a lever arm extending up to the tilting axis.

The clamping body 4 form with that channel wall Ia or 2a, with which they form the nip, an insertion funnel for clamping the Druckbelags 3. The clamping portions 6 taper to form the insertion funnel of the channel wall Ia or 2a, with which they the nip form, in the direction of the opposite channel wall radially outward.

FIG. 5 shows, in the cross-section A-A of FIG. 1, a section of the filling piece 2 next to the recesses 2b and 2c. In the sections adjacent to the recesses 2b and 2c, the filler piece 2 has contact with the walls of the cylinder body 1 delimiting the recess at all sides located within the recess in order to best stiffen the cylinder body 1 in the area of the recess. With the exception of the necessarily free narrow channel gap between the channel walls Ia and 2b is between the cylinder body 1 and the filler 2 over the vast majority of the recess full-surface contact. The filler 2 is in these cross sections, wherein in Figure 5 is a cross section with a fastener for fixing the filler 2 on the cylinder body 1 is shown, substantially cuboid, in the embodiment, it is in cross section in a first approximation square. For the recess of the cylinder body 1, this applies accordingly. The recess has two mutually parallel side walls which extend from the bottom of the recess at right angles and parallel to the plane of symmetry of the clamping gap formed between the channel walls 1a and 2a up to the outer surface of the cylinder body 1. Such a cross section is particularly easy to manufacture and weakens the cylinder body 1 in its decisive for bending stiffness cross-sectional area near the outer periphery only minimally.

FIG. 6 shows the clamping channel in a cross section with one of the register devices 9. The register device 9 has a support section 10 and a register section 11 projecting at an angle from the support section 10. The support portion 10 is in one of

Received recesses 2 c of the filler 2 and frictionally engaged between a first Clamping surface 2 d and a second clamping surface 13 a clamped and held purely frictionally engaged. The clamping surface 2d is a solid, non-compliant wall of the filler 2, which forms a first clamping means for the register device 9 in this sense. The clamping surface 13a is formed by a second clamping means 13 acting as a pressure piece. The filler 2 supports the clamping means 13 in the direction of the clamping surface 2d and from this way back and forth. The clamping means 2 is in a passage of the filler 2, which leads into the recess 2c and is directed to the clamping surface 2d, guided linearly and preferably secured against rotation. The clamping means 13 is plate-shaped and has on its clamping surface 2d side facing the clamping surface 13a. The clamping means 13 is supported by a spring member 14 and a holding member 15 on the filler piece 2. The holding member 15 is arranged in the same passage as the clamping means 13 and in the direction of the mobility of the clamping means 13 to a stop of the filler 2 back and forth adjustable. The spring member 14 is supported in one spring direction on the holding member 15 and in the other direction on the clamping means 13 from. The spring member 14 is a mechanical compression spring, the geometry of a coil spring.

The clamping means 13 has a clamping plate 13a forming plate-shaped plate and a protruding from this pin, with which it projects into a passage of the holding member 15. The holding member 15 leads the clamping means 13 in the region of the pin to and fro.

With respect to the rotation axis L of the impression cylinder 1, 2, the clamping surface 2d is a radially outer clamping surface, and the clamping means 13 forms the clamping surface 13a as a radially inner clamping surface. In printing operation thus increases due to the direction of the mobility of the clamping means 13, the force exerted by the clamping surfaces 2d and 13a on the register means 9 clamping force corresponding to the rotational speed of the impression cylinder 1, 2 and the mass of the clamping means 13 and also the spring member 14, the spring force also radially outside on the clamping means 13 acts. The holding member 15 is screwed in the passage of the filler piece 2 against the stop.

The frictional engagement between the register device 9 and the clamping means 2 and 13 is designed so that after spring tension, size of the clamping surfaces 2d and 13a and their Frictional values, that the register means 9 may indeed be axially displaced in the clamping engagement by means of a tool and thereby the side register of an associated pressure pad is specified, the once set axial position but is maintained under all conceivable conditions during operation of the printing cylinder 1, 2.

The register device 9 is formed as an angle piece, with the protruding into the recess 2c support portion 10 and the angle projecting therefrom in the direction of the channel opening register section 11. If the impression cylinder 1, 2 occupied with pressure pads, the register section 11 engages in a register recess of the Abbug arranged on the corresponding axial height pressure pads and thus determines its axial position, ie its side register.

For adjusting the axial position of the register device 9, the filler piece 2 has a local recess 2e in its channel wall 2a which faces the opposite channel wall 1a and forms a passage up to a slot 12 in the support section 10 of the register device 9. For setting the axial position, a tool can be brought through the recess 2e into engagement with the register device 9, namely with its slot 12.

FIGS. 7 to 9 show the register device 9 in two views and in a plan view of a part containing the slot 12. In the installed state of the register device 9, the slot 12 extends with its longitudinal axis in the circumferential direction of the printing cylinder 1, 2nd

Figures 10 and 11 show a tool 16 with which the axial position of the register device 9 is adjustable. The tool 16 comprises a first tool section 17 and a second tool section 18. The tool section 17 has a central longitudinal axis W, which forms an axis of rotation of the tool 16 during the adjustment of the register device 9. The tool section 18 is eccentrically arranged with respect to this tool rotation axis W and extends the tool section 17 along the tool rotation axis W. The tool section 18 forms an opening to the tool holder. Rotary axis W eccentric eccentric axis Z of the tool 16. Both sections 17 and 18 are circular cylindrical.

Figures 12 to 14 show the tool 16 in engagement with the filler 2 and the register means 9 in the adjustment of the axial position of the register means 9. The tool 16 is inserted with the tool portion 18 first in the recess 2 e of the filler until the tool section 18th protrudes into the slot 12. The diameter of the tool section 18 and the width of the slot 12 are precisely matched to each other, so that the tool section 18 just fits into the slot 12. Likewise, the width of the recess 2e and the diameter of the tool portion 17 are precisely matched to one another. FIG. 14 shows this in plan view through a handle 16a of the tool 16 shown as being transparent in FIG. 14. The tool section 17 is axially closely held in the recess 2e, so that the tool rotation axis W is determined to be axially fixed relative to the impression cylinder 1, 2 , Upon rotation of the tool 16 about the tool axis of rotation W (arrow on the right edge of the handle 16a) pivots the eccentric tool portion 18 about the axis W. Since the tool portion 18 in the slot 12 of the register device 9 axially also narrow, the Registering device 9 axially displaced by the engaging in the slot 12 tool portion 18 during the rotational movement of the tool 16 (arrow at the bottom of the handle 16a). The eccentricity of the two axes W and Z of the tool 16 may be for example 1 mm, so that the register device 9 can be adjusted from an imaginary center position to both sides axially by a maximum of 1 mm.

Figures 15 to 20 show a developed embodiment with an automatically operable clamping device. In the following, essentially only the

Differences from the embodiment of Figures 1 to 14 described, otherwise corresponds to the further developed embodiment of the already disclosed, so that the statements made to apply to the further developed embodiment.

Differences exist only insofar as they are due to the automatic operation. The clamp bodies are merely for the sake of formal distinction with the reference numeral

24 denotes. The register devices 9 of the embodiment of FIGS. 1 to 14 are used identically. Their presentation is therefore omitted for the sake of simplicity.

Figure 15 shows an end portion of the printing cylinder 1, 2, wherein the cylinder pin and the pivot bearing of the printing cylinder 1, 2 have been omitted for the sake of simplified illustration. The illustrated end section has a width measured along the axis of rotation L, which substantially corresponds to the width of a one-side-wide pressure pad. In an axial continuation, the printing cylinder further such axial sections, in the exemplary embodiment, a total of four such sections for the occupancy of four juxtaposed pressure pads in the width of a single printed page, preferably newspaper page. In the clamping channel are distributed over the width of each pressure pad eight clamping body 24, four first clamping body 24 for a leading end and four other, second clamping body 24 for the trailing end of the same pressure pad. The one for the pressure pad end provided first clamping body 24 and provided for the other pressure pad end second clamping body 24 are arranged symmetrically with respect to the respective end to be clamped. The sequence is seen in the axial direction from left to right: first, second, second, first, first, second, second, first clamping bodies 24.

Figures 16 and 17 show the clamping channel with the clamping bodies 24 in each case in a cross section. The cross-section of Figure 16 includes one of the first clamp bodies 24 for clamping a portion of a pressure pad, not shown, and the cross section of Figure 16 includes one of the second clamp bodies 24 for clamping the other dent of the same pressure pad. The printing cylinder 1, 2 is a printing cylinder having a circumference which corresponds substantially only to the circumferentially measured length of a single printing pad. In a circumferentially larger pressure cylinder, for example, twice or even larger circumference of the second clamping body 24 would clamp a Abbug a circumferentially offset further pressure pad or terminals serve such another pressure pad.

The printing cylinder 1, 2 is equipped with an actuating device for the automatic actuation of the clamping body 24. The actuator comprises an elongated Transmission structure 19 which extends axially over the entire or almost entire length of the printing cylinder 1, 2 and is axially movable relative to the impression cylinder 1, 2 and the clamping bodies 24 back and forth. The transfer structure 19 is guided by the printing cylinder 1, 2 axially secured against rotation linear. A linear guide forms both the cylinder body 1 and the filler 2, each having a recess within which the transmission structure 19 extends. The transmission structure 19 is arranged in the region of the side facing away from the channel opening underside of the filler 2 and from the channel opening at a rear edge of the clamping channel. It is opposite to a rear side of each of the support portion 25 of the clamping body 24 facing the rear end of the recess 2b in a small distance. The transmission structure 19 transmits tensile and compressive forces in the axial direction. It is shaped as a rectangular bar. The transfer structure 19 forms a slide.

The actuating device further comprises engagement members 20, one engaging member 20 per clamping body 24. The engagement members 20 protrude from the transfer structure 19 in each case in the recess 2b in the direction of the clamping body 24. They are along the

Transmission structure 19 arranged so that in each case one of the engagement members 20 in a

Guiding engagement with the associated clamping body 24 causes a Abstellbewegung of the relevant clamping body 24, so that the clamping gap against the force of the pressing device 7 of the respective clamping body 24 is opened or at least the

Clamping force is reduced in the nip so that a clamped pressure pad end can be pulled or introduced with less force from the nip. The

Engagement members 20 are formed in the embodiment as a bolt which in holes of

Transfer structure 19 are attached. Other cross-sectional shapes than those of a simple round bolt are also usable, including the formation of a transfer structure 19 with projecting engagement members 20 in one piece.

The clamping body 24 facing the respective associated engaging member 20 facing in the region of its rear ends each have a guide rail 27 for the guide engagement with the respectively associated engaging member 20. The guide tracks 27 are formed on the support portions 25, which are for the guiding engagement in the circumferential direction of the impression cylinder 1, 2 seen one with the respective associated engaging member 20th have overlapping end portion. The guideways 27 are inclined in an axial plane parallel to the radial R, extending in the region of the guide engagement with respect to the axial. An axial movement of the transmission structure 19 with the engagement members 20 causes the guide engagement of engaging member 20 and associated guide rail 27 a Abstell-tilting movement of the respective clamping body 24. In Figures 16 and 17, the clamping body 24 in solid lines, respectively with its clamping portion 26 in their counter the opposing surface 2a (Figure 16) or Ia (Figure 16) zugestellt and shown in dashed line in the parked state.

The guiding engagement of the engagement members 20 and the guideways 27 is a pure sliding contact. The engagement members 20 are rigidly connected to the transfer structure 19 in all respects. Alternatively, however, the engagement members 20 could also be rotatably supported on the transfer structure 19 around the bolt axis, particularly when configured as circular bolts. Stationary and otherwise not movable with the transfer structure 19 connected engagement members 20 are preferred. The axial guidance of the transmission structure 19 is a sliding guide, wherein the transmission structure 19 in the guide is enclosed in a narrow cross-section, whereby the stability of the slender transmission structure 19 and always correct guiding engagement with the clamping bodies 24 are ensured. This contributes to an advantageously slim, elongate shape of the transfer structure 19 and the actuating device comprising the structure 19 and the engagement means 20 and thus to the smallest possible material weakening of the cylinder body 1. The transfer structure 19 is guided in the longitudinal direction on both sides of the engagement members 20, namely in a first enclosure formed by the cylinder body 1 and in a second enclosure, which the cylinder body 1 and the filler 2 together form. The two-sided guide Ic, 2f obtained by means of the enclosures is advantageous for the stability, but basically one of the enclosures could be dispensed with, preferably the lower one formed in FIGS. 16 and 17 alone by the cylinder body 1.

The clamping body 24 are continuously curved at their lower sides and in the outer transition region between the support portion 25 and the clamping portion 26, preferably with a constant radius of curvature. This rounding extends over one

Arc angle of more than 90 °. The clamping body 24 contact in the region of their rounding the channel wall Ib, as in the first embodiment, and can also contact the towering channel wall Ia in the region of the rounding. They are bordered between the channel wall Ia and the respective associated engaging member 20 in the circumferential direction of the printing cylinder with little play. The game is dimensioned so that the tilting movement is possible, the clamping body 24 on the other hand, however, are sufficiently accurately positioned in the circumferential direction. On additional positioning elements, such as the positioning elements 8 of the first embodiment is omitted.

Figure 15 shows the clamping bodies 24 in a circumferential direction on the support portion 25. Shown are also the engagement members 20 and in dashed line the transfer structure 19. The transfer structure 19 with the engagement members 20 assumes a neutral position "0", from which they move axially right to a position "1" and axially to the left to a position "2" is movable. In the neutral position "0", the engagement members 20 are not engaged with the clamp bodies 24. The clamping body 24 are thus delivered in the respective clamping gap to the respective counter surface Ia or 2a due to the spring force of the respective associated pressing device 7. The actuating device assumes the neutral position "0", in particular during the printing operation.

The actuating device also comprises a coupling member 21, which is arranged to be axially movable at a front end, in FIG. 15 at the left end of the printing cylinder. The coupling member 21 is axially fixed to the transfer structure 19, in the embodiment, it is absolutely firmly connected to the transfer structure 19. The transmission structure 19, the engagement members 20 and the coupling member 21 form the actuator 19-21. The coupling member 21 has on its outer circumference two radially outwardly projecting webs, between which a recess remains, into which an output member 23 of a drive projects with an engagement end 22. The drive is arranged on a machine frame G in the vicinity of the impression cylinder 1, 2 axially adjacent thereto. The output member 23 is from the neutral position "0" axially back and forth until each in the position "1" or "2" movable and is driven by the drive accordingly. The engagement end 22 projects between the two webs of the coupling member 21 in the recess, so that the output member 23 via the axially rigidly connected engagement end 22 at an axial Hubbewegung the coupling member 21 presses either against the axially inner web in the one axial direction or the axially outer web in the other axial direction. The transmission structure 19 is accordingly pressed in one direction or pulled into the other.

The coupling engagement of the engagement end 22 and the coupling member 21 and their interaction is shown enlarged in FIG. The engagement end 22 always protrudes between the webs in the coupling member 21. However, the coupling member 21 of the engagement end 22 free, so it remains in the neutral position "0" axially to both webs and radially to the bottom of the depression between the webs a small distance , so that the pressure cylinder 1, 2 rotates freely from the output member 23, which always assumes the neutral position "0" in the printing operation. The clutch engagement is a driving engagement, in which the output member 23, the actuator 1: 1 entrains in both directions, apart from the small axial distance to the two webs.

Figures 18 and 19 show the two left pairs of clamping bodies 24 without the impression cylinder 1, 2, but with the transfer means 19 in dashed line and the engagement members 20. The engagement members 20 are in solid line in neutral position "0" and dashed each in the guide engagement shown with the guide rail 27 of the associated clamping body 24. FIG. 18 shows the clamping body pair arranged furthest to the left in FIG. 15, and FIG. 19 shows the clamping body pair which is located farthest to the left thereof. The guideways 27 are straight inclined surfaces which are inclined at a constant angle to the axial, wherein the angle is chosen so that slipping of the engagement members 20 is ensured in the guide engagement safe and no self-locking can occur.

The engagement members 20 are arranged on the transfer structure 19 and the guideways 27 on the respective clamping body 24 and aligned relative to each other, that the first clamping body 24, which form the nip with the channel wall 2a, in the movement of the actuator 19-21 in the one axial Direction and the second clamping body 24, which form the nip with the channel wall Ia, are turned off in the movement in the other axial direction, the other of these two groups of the clamping body 24 is free of the engaging members 20. During a movement of Actuator 19-21 in the position "1" are turned off in Figure 18, only the left and in Figure 19 only the right clamping body 24 in guiding engagement with the respective associated engaging member 20, while upon movement of the actuator 19-21 in the position "2 In FIG. 18, only the right clamping body 24 and in FIG. 19, the left clamping body 24 are placed in guiding engagement.

Bezueszeichen:

1 cylinder body

Ia canal wall

Ib cylinder wall

Ic leadership

2 filler, clamping means

2a channel wall

2b recess

2c recess

2d clamping surface

2e passage, recess

2f leadership

3 printing surface

4 clamping body

5 support section

6 clamping section

7 spring member, pressing device

8 positioning element

9 register device

10 support section

11 register section

12 slot

13 pressure piece, clamping means

13a clamping surface

14 spring member

15 holding member

16 tool

16a tool handle

17 Tool section

18 Tool section

19 S chiebing structure 20 slide engaging member

21 coupling member

22 output member

23 Drive 24 Clamping body

25 support section

26 clamping section

27 guideway

L Cylinder rotation axis

R radial

W tool rotation axis

Z Tool eccentric axis

Claims

claims

1. pressure cylinder with automatically operable clamping device for aufgreift on an outer circumference of the printing cylinder pressure pad, the pressure cylinder comprising: a) an axially extending clamping channel (Ia, Ib, 2a, 2b) with a channel opening on the outer periphery of the impression cylinder (1, 2 ), b) a clamping body (24) in the clamping channel with a Gegenfiäche (Ia, 2a) forms a nip for the pressure pad (3) and for the execution of a feed movement in the direction of the Gegenfiäche (Ia, 2a) and one of of the

C) an actuating device (19-21) which is movable for an actuation of the clamping body (24) relative to this, d) and a coupling (20, 27) which the clamping body (24) mechanically coupled with the actuating device (19-21), so that the movement of the

Actuating device (19-21) causes the Abstell- or feed movement of the clamping body (24).

2. Printing cylinder according to the preceding claim, characterized in that the coupling (20, 27) an actuating coupling member (20) of the actuating device (19-

21) and one on the clamping body (24) arranged, preferably on the clamping body (24) shaped clamping body coupling member (27) and that a movement of the actuating device (19-21) in engagement of these coupling members (20, 27) the Abstell - Or feed movement of the clamping body (24) causes.

3. Printing cylinder according to the preceding claim, characterized in that the engagement of the coupling members (20, 27) includes a frictional engagement at least.

4. Printing cylinder according to one of the preceding claims, characterized in that the actuating device (19-21) along the clamping channel (Ia, Ib, 2a, 2b) extending transfer structure (19) and one with the transfer structure (19) and the clamping body ( 24) continuously coupled or for effecting the Abstell- or Zustellbewegung coupling actuatable coupling member (20), comprising a

Movement of the transmission structure (19) directly or indirectly via an intermediate member on the clamping body (24) transmits.

5. printing cylinder according to the preceding claim and at least one of the fo Lenden features: the transmission structure (19) is axially reciprocable; the transmission structure (19) is compressive or tensile in the direction of its mobility in order to transmit a pressure or tensile force required to effect the stopping or advancing movement; - The transmission structure (19) is a slider.

6. Printing cylinder according to one of the two preceding claims, characterized in that the actuating coupling member (20) in and against the direction of mobility of the transfer structure (19) immovably connected thereto, preferably with the transfer structure (19) fixedly connected or with the

Transfer structure is formed in one piece.

7. Pressure cylinder according to one of the preceding claims, characterized in that in the clamping channel (Ia, Ib, 2a, 2b) axially spaced from the clamping body (24) spaced at least one clamping body (24) and the clamping body (24) by means of the actuating device (19-21) are actuated together.

8. Printing cylinder according to the preceding claim in combination with claim 4, characterized in that for the clamping body (24) each have at least one actuating coupling member (20) and associated with the respective clamping body (24), the actuating coupling members (20). with the transmission structure (19) constantly coupled or for effecting the Abstell- or feed movement with the Transmission structure (19) are coupled and that the actuating coupling members (20) transmit the movement of the transmission structure (19) directly or indirectly via intermediate members on the clamping body (24).

9. Printing cylinder according to one of the two preceding claims in combination with claim 4, characterized in that the transfer structure (19) is axially so long that it overlaps the clamping body (24), and is axially pressure or pressure resistant to axial pressure or tensile forces to effect the Abstell- or feed movement of the clamping body (24).

10. A printing cylinder according to the preceding claim and one of the following features: the transfer structure (19) extends continuously axially compressive or tensile over at least substantially the entire available for the printing axial width of the printing cylinder (1, 2); the actuating device (19-21) has a further transmission structure (19) and the transmission structures (19-21) extending from the two axial ends of a cylinder body (1) of the printing cylinder (1, 2) continuously axially pressure or tensile strength to each at least substantially to the axial center of the impression cylinder (1, 2).

11. Printing cylinder according to one of the preceding claims, characterized in that the coupling (20, 27) comprises an engagement member (20) and a guide track (27) and that a movement of the actuating device (19-21) in a guide engagement of the engagement member (20 ) with the guide track (27) causes the Abstell- or feed movement of the clamping body (24).

12. Printing cylinder according to the preceding claim, characterized in that one of engaging member (20) and guide track (27) arranged on the clamping body (24), preferably on the clamping body (24) is formed in one piece with this.

13. Printing cylinder according to one of the preceding claims, characterized in that the actuating device (19-21) in an axial end region of the printing cylinder (1, 2) has a coupling member (21) and on a frame (G) adjacent to the end region of the impression cylinder ( 1, 2) an output member (23) of a drive is movably mounted and in a clutch engagement with the coupling member (21) the

Movement of the actuator (19-21) causes.

14. impression cylinder according to the preceding claim, characterized in that the actuating device (19-21) and the output member (23) are rectilinearly movable and the output member (23) in the clutch engagement with the coupling member (21), the actuating device (19-21) entraining.

15. Printing cylinder according to one of the two preceding claims, characterized in that the coupling member (21) has a radially projecting web and the driven member (23) against the web pushing the actuator (19-21) moves.

16. Printing cylinder according to the preceding claim, characterized in that the coupling member (21) has a further, radially projecting web and the driven member (23) engages between the webs and selectively against the one or the other web pushing the actuating device (19-21 ) is moved in a first or opposite second direction of movement.

17. Printing cylinder according to one of the preceding claims, characterized in that the pressure cylinder (1, 2) in the direction of rotation of the

Actuator (19-21) extending guide (Ic, 2f) for the actuator (19-21) forms.

18. Printing cylinder according to the preceding claim, characterized in that the guide (Ic, 2f) surrounds the actuating device (19-21) on at least one longitudinal side and engages, so that the actuating device (19-21) transversely to the direction of their mobility not can dodge.

19. Printing cylinder according to one of the preceding claims, characterized in that in the clamping channel (Ia, Ib, 2a, 2b), a further clamping body (24) is arranged, which has a clamping gap for clamping the other end of the same pressure pad (3) or a in the circumferential direction arranged offset further pressure pad forms, preferably at least one of the clamping body (24) forms the nip with one of the channel walls (Ia, 2a).

20. Printing cylinder according to one of the preceding claims, characterized in that the pressure cylinder (1, 2) has a cylinder body (1) and one for forming the

Clamping channel (Ia, Ib, 2a, 2b) in the cylinder body (1) inserted filler (2) and in that the filler (2) has a receptacle (2b) facing a wall (Ib) of the cylinder body (1) is open , and that the clamping body (24) is at least partially received in the receptacle (2b) of the filling piece (2).

21. Printing cylinder according to one of the preceding claims, characterized in that the pressure cylinder (1, 2) a cylinder body (1) and a for forming the clamping channel (Ia, Ib, 2a, 2b) in the cylinder body (1) inserted filler (2 ) and that the actuating device (19-21) is accommodated at least partially in a recess (2f) of the filler (2), the recess (2f) of the

Filler (2) preferably at least part of the guide (Ic, 2f) according to one of claims 17 and 18 forms.

22. Printing cylinder according to one of the preceding claims, characterized in that the clamping body (24) for its support a support portion (25) and for the

Forming the clamping gap has a projecting in the direction of the channel opening clamping portion (26).

23. A printing cylinder according to the preceding claim and at least one of the following features: the Stützab section (25) and the clamping portion (26) are at an angle to each other, preferably together they form an elbow; the support section (25) is supported at an underside facing away from the channel opening on the impression cylinder (1, 2), preferably on the cylinder body (1) according to claim 20.

24. Printing cylinder according to one of the preceding claims, characterized in that the clamping body (24) is tiltably mounted for the execution of the stopping and advancing movement.

25. Printing cylinder according to the preceding claim, characterized in that the clamping body (24), preferably the support portion (26) according to claim 22, a

Has rounding and the clamping body (24) with the rounding of the

Pressure cylinder (1, 2) is supported, so that in contact with the rounding of the impression cylinder

(1, 2) for the clamping body (24) a tilting axis is formed.

26. Printing cylinder according to one of the preceding claims, comprising a pressing device (7) which exerts on the clamping body (24) a force which causes a clamping force in the clamping gap.

27. Printing cylinder according to the preceding claim and at least one of the following features: the pressing device (7) is supported on the filling piece (2) according to claim

20 off; at least a predominant volume fraction of the pressing device (7) is received in the filling piece (2) according to claim 20.