WO2019081648A1

WO2019081648A1 - Sheet processing machine having a delivery and method for adjusting a sheet brake in a delivery

Info

Publication number: WO2019081648A1
Application number: PCT/EP2018/079303
Authority: WO
Inventors: Volkmar Schumann; Robert Seidel
Original assignee: Koenig & Bauer Ag
Priority date: 2017-10-26
Filing date: 2018-10-25
Publication date: 2019-05-02
Also published as: EP3704047B1; EP3704047A1

Abstract

The invention relates to a sheet processing machine having a delivery, having a sheet conveying system and having a sheet brake having at least one axially displaceable brake station. The invention further relates to a method for adjusting a brake station of a sheet brake in a delivery of a sheet processing machine having a sheet conveying system. The problem addressed by the invention is that of creating an alternative sheet processing machine having a delivery, having a sheet conveying system and having a sheet brake having at least one axially displaceable brake station and creating an alternative method for adjusting a brake station of a sheet brake in a delivery of a sheet processing machine having a sheet conveying system. According to the invention, the problem is solved in that a positioning element (13) connected to the brake station (6) is provided which is guided by means of at least one flat surface (14) on a guide traverse (10) and carries the brake station (6) in doing so.

Description

Sheet processing machine with a display and method for adjusting a brake station of a sheet brake in a display

The invention relates to a sheet-processing machine with a delivery with a sheet conveying system and with at least one axially displaceable brake station having sheet brake and a method for adjusting a braking station of a sheet brake in a display of a sheet-processing machine with a sheet conveying system.

From DE 103 61 204 A1 a device for the axial adjustment of braking stations is known in which a guide beam is formed as a hollow cylinder and accommodates in its interior of the threaded spindles driven actuating body for the braking stations. The drive of threaded spindles is done by outside the machine frame of the display arranged servomotors. Thus, space is created in the braking stations. However, the hollow cylinder requires a certain vertical height of the sheet brake and thus a relatively large Bogenfallweg.

From DE 20 2006 021 033 U1 a sheet brake system for braking printed sheets is known, wherein a carriage of a brake module is mounted on a T-beam. The servo motors for axial adjustment are assigned directly to the brake stations, so that a lot of space is required in the area of the brake stations. This occupies space that is thus not available for other purposes, such as for guide elements, air supply or a non-stop roller blind.

The invention is based on the object, an alternative sheet-processing machine with a delivery with a sheet conveying system and with at least one axially displaceable brake station having sheet brake or an alternative method for adjusting a brake station of a sheet brake in a display of a to create sheet processing machine with a sheet conveying system. In particular, an improved adjustability of the braking stations of a sheet brake in the display of a sheet-processing machine, such as printing press, to be created. In particular, the Bogenfallweg should be reduced.

According to the invention the object is achieved by a device having the features of an independent device claim or a method having the features of an independent method claim. Advantageous embodiments will become apparent from the dependent claims, the description and the drawings.

The invention has the advantage that an alternative sheet-processing machine with a delivery with a sheet conveying system and with at least one axially displaceable brake station having sheet brake and a corresponding method is provided. In particular, a störunanfälligere sheet brake is created with which the storage process of sheet in the delivery of a sheet-processing machine can be further improved. In particular, the Bogenfallweg is reduced. A corresponding sheet-processing machine can be, for example, a printing press, in particular an offset rotary printing press, with such a delivery.

Preferably, in a display of the machine, the guide beam for the brake station or the braking stations with at least one flat outer surface and / or inner surface and open down. In this case, an at least approximately square cross section is preferably used, which allows a reduction of the vertical height compared to a circular cross section. Advantageously, thereby the height of the brake station or sheet brake can be reduced, which ultimately leads to a smaller Bogenfallweg. A smaller sheet fall path in turn leads to a better stack quality of the delivery pile. For example, a sheet brake can be designed with a guide beam, which at least partially covers an actuator for the axial adjustment of at least one brake station. In this case, the guide beam can be designed, for example, with a downwardly open U-profile and thereby absorb the actuator for one or for several or all braking stations. The U-profile has the advantage that a resulting in a cleaning bubbles whirling or resulting powder can be easily removed. Preferably, the guide beam is designed such that it ensures a play-free guidance of a brake station or of several or all braking stations.

The guide traverse is preferably carried out in such a way that, on the one hand, reliable protection of the actuator from contamination, in particular powder, and, on the other hand, almost play-free guidance of the braking stations is achieved, in particular during production or during the axial adjustment process. For example, the actuator threaded spindles or spindle shafts, which are protected by the trained in the form of a hood guide beam from dirt, especially from powder. The executed in the form of a hood guide beam preferably covers the entire length of the threaded spindles or spindle shafts.

It can be provided that the guide elements, for. B. guide surfaces, the braking station on planar particular ground surfaces of the preferably designed as a hood guide crosspiece lie in such a way that the brake station is guided without play. In particular, the guide surfaces of the brake station are in the immediate vicinity of an actuating element. It occurs during production advantageously no movement of the brake station. Further education additional clamping systems can be provided to avoid any movement of the brake station outside the axial adjustment. In particular, a cleaning device for cleaning the actuator and / or guide surfaces of the brake station, for example, the respective brake station assigned to be provided, wherein the cleaning device has at least one nozzle for a surface to be cleaned. In particular, cleaning bubbles are carried out by means of the cleaning device at intervals and / or during an adjustment process. Thus, problems such as jamming during the adjustment process can be avoided. In particular, the sheet brake on a corresponding pneumatic, with a secure locking is realized. This ensures a very good rest position of the brake station during production. To further increase the security of the adjustment process, a roof-shaped design of the guide surfaces or contact surfaces of the brake station is provided in a further development.

Preferably, the blown air generated by the cleaning device of the nozzle can be controlled or regulated. The cleaning device may, for example, have an air control element. The blowing intensity at different nozzles of the cleaning unit or between nozzles of different braking stations can also be different. Alternatively or additionally, a cleaning device may also have one or more pivotable nozzles which can be aligned, for example by hand or automatically, on different surfaces.

Angular errors of the brake station can be avoided if the brake station or a squeegee is aligned exactly in the sheet travel direction. In particular, drive problems can be avoided if, for example, a square shaft operates in a positionally accurate manner relative to a square socket of the brake station. By the cleaning process with a corresponding nozzle is always a good cleaning condition of the adjusting device and the contact points between the guide beam and the brake station of the sheet brake. Also, the contamination of the threaded spindles or spindle shafts is reduced or prevented. In the following, the invention will be explained by way of example. The accompanying drawings show schematically:

Fig. 1: Display of a sheet-processing machine with a

Sheet brake;

Fig. 2: Perspective view of a sheet brake with

Threaded spindles displaceable on a guide beam mounted brake stations;

Fig. 3: Side view of a mounted on the guide beam

Braking station.

Fig. 1 shows, for example, a section of a display of a sheet-processing machine, in particular a sheet-fed press, here especially a sheet-fed offset rotary printing press, preferably in aggregate and series construction. The delivery contains a not further illustrated sheet 1 transporting sheet conveying system, which transports the printed in the printing machine, painted, machined, etc. sheet 1 to a delivery stack 2. This sheet conveying system is preferably designed as a chain conveyor system with two delivery chains each guided laterally on the frame of the delivery, between which gripper carriages 3 are arranged. In particular, the chain guide rails are each assigned to the vertically aligned frame walls of the display. The gripper carriage 3 have Bogenfixiersysteme, with which the sheets to be transported 1 are gripped at the front edge. Of the delivery chains, the gripper carriage 3 are guided in particular continuously on a gripper carriage track in the sheet running direction BLR to over the delivery stack 2, where the gripper carriage 3, the sheets 1 release for storage. On the sheet conveying path to the delivery stack 2, at least one mechanical sheet guide element, preferably one or more sheet guide plates 4, is arranged in the delivery below the sheet transport plane, which sheet 1 is arranged on leads the way to the delivery pile 2. A sheet guide plate 4 has an at least approximately closed surface for sliding and / or floating guiding the sheet 1. A sheet guide plate 4 may be provided with a color-repellent coating. Next nozzle openings for pneumatic guidance of the sheet 1 the sheet guide, in particular the sheet guide 4 may be assigned. The printing machine can preferably be designed to be convertible between the modes of recto printing and perfecting. It can be formed between the sheet guiding element, in particular the sheet guide plate 4, and the sheet 1 transported above, in particular in the operating mode perfecting, an air cushion.

In the delivery of the delivery stack 2 in the sheet running direction BLR a sheet brake 5 is arranged upstream, which takes over the sheet 1 to be deposited by the gripper carriage 3 and delayed after their release of machine speed to storage speed. After the deceleration by the sheet brake 5, the sheets 1 are aligned to not shown front, rear and / or side edge stops and placed clean on the delivery stack 2. The delivery stack 2 is preferably lowered by a Stapelhubantrieb, not shown, during the sheet deposition process such that the delivery stack surface forms an at least approximately constant storage level for the upcoming sheet 1. The sheet brake 5 includes at least two braking stations 6, which are arranged axially, that is, transversely to the sheet running direction BLR, displaceable, in particular displaceable. However, it is also possible to use a plurality of such braking stations 6, for example at least three or exactly three, four, five, six, seven or, depending on the format, more braking stations 6. The braking stations 6 are preferably placed on a respective lateral usually unprinted sheet edge, on pressure-free corridors and / or on sufficiently dried color areas. The displacement can preferably be made by motor. For example, an actuator, in particular via spindles, the brake stations 6 shift. It can one, several or all braking stations 6 a be assigned his own drive. Unnecessary braking stations 6 can be deactivated and / or shifted from the area of the sheet format.

At least one but preferably several or all braking stations 6 can accommodate at least one respective braking element, preferably a brake band 17, which is in particular received circumferentially around one or more axes of rotation. The brake element, in particular brake band 17, preferably occurs in pneumatic interaction with the sheet 1 transported via the sheet brake 5. In particular, the sheets 1 are brought into contact with the brake element, in particular brake band 17, by suction air and / or held in contact with one another, so that contact is established between the brake element, in particular brake band 17, and the respective sheet 1. The brake element, in particular brake band 17, moves at least temporarily with a speed which is lower than the machine speed and delays a respective sheet 1 released by the gripper carriage 3 accordingly. For this purpose, at least one drive can be assigned to the brake element, in particular brake band 17, which drives it at a constant or variable speed reduced relative to the engine speed. Preferably, the brake element, in particular brake band 17, but operated dynamically and / or periodically between at least approximately machine speed and one with respect to this lower storage speed. In the case of several brake elements, in particular brake bands 17, the drive can also drive or retard several or all brake elements, in particular brake bands 17. Alternatively, each brake element, in particular brake band 17, a separate drive be assigned. In a further development, the brake element, for example, a suction ring or the brake band 17, with a brake element, such as a suction ring or a brake band 17, a further brake station 6 by transversely with respect to the sheet running direction BLR arrangement transversely acting on a respective sheet to be deposited. 1 FIG. 2 shows a perspective view of a sheet brake 5 with braking stations 6, for example as described above. The sheet brake 5 is accommodated in particular in a separate frame and executed to adjust to different sheet formats in and against the sheet travel direction BLR displaced. On a side facing the stacking area, a cross-member is preferably arranged over the machine width, which is here associated with the sheet brake 5 as a trailing edge cross-member 18. The trailing edge cross member 18 preferably carries a plurality of trailing edge stops 19, which are each mounted pivotably about a pivot axis oriented in the direction of sheet travel BLR. By shifting the sheet brake 5 in or against the sheet running direction BLR, the trailing edge stops 19 are set to the current sheet format.

Preferably, the traverse, in particular the trailing edge cross member 18, and / or a further traverse 20 of the sheet brake 5 with particular laterally arranged in the region of the frame signs 21 in particular firmly connected. In or outside the range of a maximum sheet format width, a guide cross member 10 for the braking stations 6 may be connected to the signs 21 or be supported by these. Preferably, the traverse, in particular the trailing edge cross member 18, and / or the further traverse 20 or possibly connecting elements are led beyond the signs 21, such that they pass through the side frame of the display through openings of the frame wall. Preferably, the frame wall is a main frame wall or the frame wall forms a plane with a cylinder-bearing wall. Particularly preferably, the traverse, in particular Hinterkantentraverse 18, and / or the further Traverse 20 or a connecting element outside of the frame or outside the frame wall of the delivery of a fixing plate 22 received, which is supported against the frame or the frame wall of the display. The preferably on both sides outside the frame or the frame walls of the display arranged fixing plates 22 are in particular in and against the sheet running direction BLR against the frame of the display displaced or slidably held or stored. The storage of Fixing plates 22 can be done for example by means of strips. Preference is given to further Verschutzungen for capsules of the frame wall by cross-elements.

The sheet brake 5 contains here, for example, four braking stations 6, which can be displaced or displaced axially by an actuator along the transverse to the sheet running direction BLR guide beam 10. The guide cross-member 10 is preferably arranged approximately in the direction of sheet travel BLR approximately in the middle of the brake stations 6 and in particular connected to the lateral plates 21 which can be displaced to adjust the format. In particular, the guide cross-member 10 is fixed to the frame but arranged format adjustable. The guide cross-member 10 extends at least over the maximum sheet format to be processed and in particular carries all brake stations 6 of the sheet brake fifth

An actuator for one, several or all brake stations 6 of the sheet brake 5, for example, outside the signs 21 arranged in particular independently controllable spindle drives 23 which may be assigned to a brake station 6 respectively. For example, the spindle drives 23 are arranged outside the frame or the frame wall. The spindle drives 23 can preferably be mounted outside the frame of the delivery on a fixing plate 22 arranged, for example, on the operating side of the machine, in particular screwed on.

The actuator for the brake stations 6 of the sheet brake 5 here contains in particular a threaded spindle 12 for each brake station 6, wherein each of the threaded spindles 12 can be driven by one of the spindle drives 23, for example via any coupling connection or a special universal coupling. A respective brake station 6 is connected via an associated actuating element 13 with the respective threaded spindle 12 and is supported by this control element 13 at rotative rotation of the threaded spindle 12 axially displaced. Each adjusting element 13 has in particular exactly one connection point, in particular an engagement point, to a threaded spindle 12. The threaded spindles 12 of the further braking stations 6 are guided through holes without engagement with the actuating element 13. The sheet brake 5 further comprises a first drive, in particular a first square shaft drive 8, for driving brake elements, in particular brake bands 17, and preferably a second drive, in particular a second square shaft 9, for the pneumatic control of the brake elements, in particular brake bands 17 on.

Fig. 3 shows a side view of a brake station 6 of a sheet brake 5 for a sheet-processing machine, for example as described above. The brake station 6 here contains a main body 7, which is mounted on a over the machine width, that is transverse to the sheet running direction BLR, arranged guide beam 10. The brake station 6 is mounted displaceably or displaceably along the guide cross-section 10, which is in particular profiled here. Preferably, the guide cross-member 10 has at least one flat outer surface and / or at least one flat inner surface and is designed to be open at the bottom. The brake station 6 is preferably adapted to the outer surface of the guide cross-member 10. In particular, the guide cross-member 10 has at least two flat outer surfaces and / or inner surfaces arranged at an angle of zero degrees to one another. In this case, the guide cross-member 10 may have at least two, for example three, at a right angle to each other arranged flat outer surfaces and / or inner surfaces. The outer surfaces are predominantly on the brake station 6, in particular the main body 7, aligned. Preferably, the guide cross member 10 has two vertically spaced outer surfaces and / or inner surfaces, wherein an upper horizontally disposed outer surface and / or inner surface is provided. Rounded edges can also be arranged between the surfaces. Particularly preferably, the guide cross-member 10 has a vertical extent and a horizontal extent, wherein the vertical extent at least approximately corresponds to the horizontal extent.

The guide cross-member 10 is preferably designed as a downwardly open U-profile and encloses in particular the actuator at least partially. The actuator may have an axially displaceable by a threaded spindle 12 actuator 13, which is guided by means of at least one and preferably a plurality of planar guide surfaces 14 along the guide beam 10. In particular, a respective brake station 6 is supported and guided exclusively by means of guide surfaces 14 on the guide cross member 10. Guide surfaces 14 of the actuating element 13 may be formed at a different angle, in particular from zero degrees, for example, at a right angle to each other. The inner surfaces of the guide cross-member 10, in particular the guide surfaces 14 of the guide cross-member 10, are predominantly aligned with the actuating element 13.

A brake station 6 is preferably connected to the associated adjusting element 13 such that it is guided by means of planar guide surfaces 14 of the adjusting element 13 on planar guide surfaces 14 of the guide cross member 10, wherein the actuating element

13 while the brake station 6 carries. In particular, the brake station 6 is held and guided exclusively by the actuating element 13 or by the guide surfaces 14 of the actuating element 13 with respect to the guide surfaces 14 of the guide cross-member 10. The guide surfaces 14 of the guide cross member 10 and / or the brake station 6, in particular of the control element 13, can be processed, in particular ground, be. Preferably, the actuator 13 of the brake station 6 projecting or roof-shaped guide surfaces

14, which are in contact with, for example, countersunk guide surfaces 14 of the guide beam 10, wherein the contact is preferably a mechanical sliding movement enabling plant of the surfaces. The adjusting element 13 is preferably firmly or releasably fixedly connected by means of fixing elements with a base body 7 of the brake station 6. For example, the adjusting element 13 can be fixed by means of screw joints 15 on the main body 7. The guide cross-member 10 is arranged at least approximately centrally with respect to the brake station 6, in particular with respect to the sheet running direction BLR, so that a clamping or tilting of the brake station 6 with respect to the guide cross-member 10 is prevented. The brake station 6 is guided by the adjusting element 13 in particular such that the brake station 6 is held and / or guided at a distance S1, S2 to the traverse, in particular trailing edge traverse 18, and / or to the further traverse 20. The distance S1, S2 may be the same size or different sizes, with a minimum extension of the distance S1, S2 is sufficient. For example, the distance S1, S2 may be about 0.1 mm to 3 mm, preferably at least approximately 1 mm. The distance S1, S2 can remain unchanged during the axial adjustment and / or during the production process.

The brake station 6 is associated with a first drive element which is preferably operatively connected to a first drive shaft and which is preferably designed here as a first square shaft drive 8 operatively connected to a square shaft. About the first drive element, in particular the first square shaft drive 8, a drive of the base body 7 associated brake element, here a brake band 17, take place. In this case, preferably a common drive of all the brake stations 6 of the sheet brake 5 associated brake elements, in particular brake bands 17, preferably by a rotational movement of the machine width arranged drive shaft, in particular square shaft. The square shaft of the first square shaft drive 8 is arranged parallel to the guide cross-member 10. The square shaft is in particular with surfaces of the square shaft receiving output elements on the base body 7 and preferably each brake station 6 of the sheet brake 5 in contact. The surfaces of the output elements of the brake stations 6 slide accordingly on the outer contour of the square shaft in the axial displacement. The braking station 6 is further associated with a second drive element which is preferably in operative connection with a second drive shaft and which is preferably designed as a second square shaft drive 9 operatively connected to a square shaft. About the second drive element, in particular the second square shaft drive 9, for example, a pneumatic control for the brake element, here the brake band 17, the brake station 6 are made. In this case, preferably a common pneumatic control of all the braking stations 6 of the sheet brake 5 associated brake elements, in particular brake bands 17, preferably by a rotational movement of the machine width arranged drive shaft, in particular square shaft. The square shaft of the second square shaft drive 9 is also arranged parallel to the guide beam 10. The square shaft is in particular with surfaces of the square shaft receiving output elements on the base body 7 and preferably each brake station 6 of the sheet brake 5 in contact. The surfaces of the output elements of the brake stations 6 slide accordingly on the outer contour of the square shaft in the axial displacement. The brake station 6 is here accordingly axially displaceable along the square shafts and the guide beam 10, in particular displaceable, for example, as already described above. The connection points between the output elements of the brake station 6 and a square shaft from the first square shaft drive 8 and second square shaft drive 9 are executed in particular with play, in order to prevent jamming in the axial movement.

The braking station 6 here has at the respect to the sheet running direction BLR downstream end of the base body 7 on a support member, which is laterally arranged on the base body 7 preferably protruding. The carrier element is integrally formed, for example, on a drive wheel rotatably mounted on the base body 7. The drive wheel may be formed, for example, as a hedgehog to drive the brake band 17. The carrier element has an upper connection surface, here is arranged at least approximately horizontally. Preferably, the here at least approximately horizontally arranged connection surface is assigned to a functional unit interchangeable. In this case, a respective functional unit can receive a rotating or circulating brake element, in particular the brake band 17, receive a rotating or revolving support element, have a pneumatically acting element or can also be designed as a dummy bar or the like. In a further development, the brake station 6 can be assigned a further carrier element, for example on the opposite side of the main body 7. In this case, the further carrier element can be identical but mirror image assigned to the brake station 6. Furthermore, the brake station 6 can be assigned the same or different functional units. For example, the brake station 6 can simultaneously receive two brake bands 17 or a brake band 17 and another element via the carrier elements. Preferably, identical replaceable functional units are received by the carrier elements.

The brake unit 6 preferably exchangeable associated functional unit may also have at least approximately horizontally arranged base surface and are connected via this base with the pad on the support member of the brake station 6 or be. Preferably, a functional unit for receiving and guiding a brake band 17 is designed as a suction strip 16. This squeegee 16 has at the front end seen in the sheet running direction BLR and at the rear end in each case a deflection region with deflection elements for the circumferentially feasible brake band 17. Between the two deflection regions, a suction region with at least one suction air opening is formed on the surface to be swept by the brake band 17. Preferably, the squeegee 16 is here formed with two side walls, between which a front deflection roller and a rear deflection roller is preferably received rotatably movable. Between the front deflection roller and the rear deflection roller, a suction plate with a guide surface which is in particular continuous or contoured for the sliding band 17 sliding over the suction plate is preferred here intended. In the suction plate is preferably at least one suction air duct and / or at least one suction air hole introduced, which is swept by the brake band 17. A suction air duct is preferably formed with an extension oriented in sheet running direction BLR on the surface of the suction plate. Between the front pulley and the rear guide pulley, the brake band 17 is held in contact with the suction plate, so that openings or holes of the brake band 17 in cooperation with the voltage applied in the suction air duct and / or the suction air hole suction on the on the brake station. 6 train transported arch bases. The applied negative pressure can be adjustable or regulated.

The rotational movement of the drive wheel is preferably non-positively and / or positively transmitted to the brake band 17, so that this rotates endlessly. The drive of the brake band 17 is preferably carried out by here designed as a heddle wheel drive wheel of the brake station 6, wherein the hedgehog here preferably engages with pins in the openings of the brake band 17. The hedgehog wheel is preferably rotationally driven by the first drive element, in particular the first square shaft drive 8, the brake station 6, for example via an intermediate stage or a transmission. The drive of the drive wheel, in particular of the hedgehog wheel, is preferably carried out dynamically and discontinuously, preferably in a clock-bound manner, between at least approximately the machine speed and the depositing speed. As a drive for the first drive element, in particular the square shaft of the first square shaft drive 8, for example, a servo motor 24 can be used. Preferably, the servomotor 24 outside the frame or the frame wall of the display attached to a, for example, on the drive side of the machine arranged fixing plate 22, in particular screwed be. Furthermore, the drive with a control device, such as the machine control, cooperate, via which a desired filing speed and / or if necessary, the course of movement of the brake element, in particular the brake band 17, is adjustable and modifiable. Thus, the sheet brake 5 is adaptable to the braking stations 6 to the different pressure conditions. Alternatively, each brake station 6 can be assigned a separate drive and / or a drive of the brake band 17 can take place at a constant or variable speed lying below the machine speed.

A respective brake station 6 of the sheet brake 5 is associated with a pneumatic connection, which is here preferably designed as a suction air connection 1 1 with at least one, for example, controllable vacuum generator, not shown, in communication. The suction air connection 1 1 can be provided, for example, for the suction air supply of the connection surface of the support element associated with the functional unit. If, for example, a functional unit embodied as a suction strip 16 is assigned to the carrier element, the suction region of this suction strip 16 can be subjected to suction air or negative pressure. The pneumatic connection, here the suction air connection 1 1, can be continued along the brake station 6 or, as shown here, for example, within the main body 7 of the brake station 6. Alternatively, the pneumatic connection can also be designed as a compressed air connection for generating a negative pressure at the brake station 6 according to the ejector principle. Further education can be assigned to the brake station 6 even more pneumatic in particular suction leading connections, which can be performed outside the main body 7 to the corresponding point of action. It is also possible to provide at least partially different suction air or compressed air levels for different functional units or different states.

The suction air connection 1 1 is here preferably incorporated in the main body 7 of the brake station 6 and here leads also in the main body 7 of the brake station 6 to the support member of the brake station 6. It can be applied to the pneumatic connection and at least temporarily or permanently overpressure. Thus, a blown air effect can be achieved by the brake station 6. For example, you can pneumatic support elements are supplied with blowing air and / or cleaning purposes are tracked. The suction and / or blowing air of the brake station 6 may preferably be infinitely adjustable or adjustable. Particularly preferably, a timing of the suction and / or blowing air of the brake station 6 by an air control element, in particular a rotary valve, which the brake station 6, for example, in the base body 7 integrated, can be assigned. A rotary valve may have recesses for separately controlling the suction air of a catcher element, not shown, and two pneumatic connections for the functional unit. Such a rotary valve can be actuated, for example, by the second drive element, in particular the second square shaft drive 9. A drive shaft, especially square shaft, of the second drive element can be driven by a single servo motor 25, for example. Preferably, the servomotor 25 outside the frame or the frame wall of the display mounted on a, for example, on the drive side of the machine arranged fixing plate 22, in particular screwed be. The drive movement of the servomotors 24, 25 is preferably adjustable and / or tunable to the bow sequence. For example, by means of the rotary valve, a cyclic pneumatic control, in particular a control of the intake air, to a catcher element, not shown, and / or each functional unit used, in particular the squeegee 16 with brake band 17, take place.

The sheet brake 5, in particular one, several or all braking stations 6, is associated in particular with a cleaning device which has at least one nozzle for the surface to be cleaned for cleaning the actuator and / or at least one surface of at least one brake station. This at least one nozzle of the cleaning device in particular directs a blown air jet to a connection point, in particular between a threaded spindle 12 and an adjusting element 13 and / or a surface of the first square shaft drive 8 and / or a surface of the second square shaft drive 9 and / or a guide surface 14 for the braking station 6 For example, a cleaning device may be a movable one Have nozzle or, for example, have a plurality of nozzles that are directed or directed to the corresponding locations of the brake station 6. A nozzle of the cleaning device can be arranged, for example, laterally on the main body 7 of the brake station 6.

In this case, a cleaning device has a blown air source or a compressed air connection which is in operative connection or flow connection with at least one, for example, controllable or controllable compressed air source, for example a compressor. There may also be other Blasluftquellen in communication with the cleaning device. As a blown air source, for example, an axial pressure to be applied to the suction air connection 1 1 overpressure serve. In particular, a blowing air jet is generated by a cleaning device, which acts as a short-term blast air impact, for example, on the respective surface to be cleaned. In particular, a blown air jet or blown air blow through the at least one nozzle at intervals by the cleaning device, in response to an axial adjustment of the brake station 6 and / or manually initiated dischargeable. In order to achieve a higher intensity of Blasluftstöße it can be provided to clean the braking stations 6 successively or to generate only at the concrete axially adjustable brake stations 6 a blast air. It can also be done a cleaning bubbles in production breaks. A cleaning bubbles, for example, during one or each axial movement of the brake station 6 take place. Alternatively or additionally, it is also possible to provide a suction device for extracting deposits or of fluidized dust or powder, for example below the guide cross-member 10.

For effect: For example, when setting up the display or machine or a job change, an axial adjustment of one or more braking stations 6 of the sheet brake 5 may be necessary. The axial adjustment of one or a respective brake station 6 takes place by means of the actuator via the adjusting element 13 of the respective Braking station 6, wherein the adjusting element 13 is guided by means of the flat guide surfaces 14 on the guide cross member 10 and thereby carries the brake station 6. A brake station 6 is preferably guided or moved at a distance S1, S2 to the adjacent traverse, in particular to the trailing edge cross member 18, and / or to the further traverse 20. The brake station 6 is thereby preferably exclusively and at least approximately free of play held and guided by means of the guide surfaces 14 of guide cross member 10 and actuator 13. A square shaft of a first square shaft drive 8 and a further square shaft of another square shaft drive 9, the traverse, in particular Hinterkantentraverse 18 and / or another traverse 20 are each arranged parallel to each other and transverse to the sheet running direction BLR. An axial adjustment of the brake station 6 can be made so along the waves spaced from the trusses 18, 20 made by the actuator.

List of used reference numbers

1 bow

2 delivery stacks

3 gripper carriage

4 sheet baffle

5 sheet brake

6 brake station

7 basic body

8 first square shaft drive

9 second square shaft drive

10 guide traverse

1 1 suction air connection

12 threaded spindle

13 control element

14 guide surface

15 screw connection

16 squeegee

17 brake band

18 trailing edge crossbar

19 trailing edge stop

20 more traverses

21 shield

22 fixing plate

23 spindle drives

24 servomotor

25 servomotor

BLR sheet travel direction

S1, S2 distance

Claims

claims

1 . Sheet processing machine with a display

with a sheet conveying system,

wherein the sheet conveying system is designed as a chain conveyor system with two each guided on the side of the frame of the display delivery chains between which

Gripper carriage (3) are arranged, and

with at least one axially displaceable brake station (6)

Sheet brake (5),

wherein the sheet brake (5) has a guide beam (10), at which the

Braking station (6) is supported,

wherein an actuator (12, 13, 23) for axial adjustment of the brake station (6) is provided and

wherein a drive (12, 23, 24, 25) and / or a traverse (18, 20) of the sheet brake (5) is arranged through the frame of the delivery,

characterized,

in that an adjusting element (13) connected to the braking station (6) is provided, which is guided by means of at least one flat surface (14) on the guide cross-member (10) and thereby carries the braking station (6).

2. Sheet-processing machine according to claim 1, wherein the guide cross-member (10) has a downwardly open U-profile and / or the actuator (12, 13) at least partially encloses.

3. Sheet-processing machine according to claim 1 or 2, wherein the guide cross-member (10) between the drive elements (8, 9) or for the braking station (6) is arranged.

4. Sheet processing machine according to claim 1, 2 or 3, wherein the guide beam (10) with respect to a sheet running direction (BLR) at least approximately is arranged centrally to the brake station (6) and / or to drive elements (8, 9) or for the brake station (6).

5. sheet-processing machine according to claim 1, 2, 3 or 4, wherein the braking station (6) exclusively by the adjusting element (13) on the guide beam (10) and / or at least approximately free of play out.

6. sheet-processing machine according to claim 1, 2, 3, 4 or 5, wherein the adjusting element (13) by means of fixing elements (15) with a base body (7) of the braking station (6) fixedly or releasably firmly connected.

7. Sheet-processing machine according to claim 1, 2, 3, 4, 5 or 6, wherein the braking station (6) by means of ground guide surfaces (14) of the adjusting element (13) and / or the guide beam (10) relative to the guide beam (10) and / or is guided.

8. sheet-processing machine according to claim 1, 2, 3, 4, 5, 6 or 7, wherein the actuating element (13) projecting guide surfaces (14), which are in contact with countersunk guide surfaces (14) of the guide beam (10).

9. sheet-processing machine according to claim 1, 2, 3, 4, 5, 6, 7 or 8, wherein the sheet brake (5) on both sides relative to the frame of the display mounted signs (21) by means of a traverse (18) and / or another crossmember (20) are connected and / or wherein the sheet brake (5) relative to the frame displaceable and / or slidably received.

10. Sheet-processing machine according to claim 1, 2, 3, 4, 5, 6, 7, 8 or 9, wherein the sheet brake (5) has a traverse (18) and / or another traverse (20) and the braking station (6 ) is held and / or guided at a distance (S1, S2) to the traverse (18) and / or to the further traverse (20).

1 1. Sheet-processing machine according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10, wherein a first square shaft drive (8) has a square shaft and / or another square shaft drive (9) has a square shaft and one or both Square shafts are arranged parallel to a traverse (18) and / or another traverse (20) and / or transversely to the direction of sheet travel (BLR).

12. Sheet-processing machine according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 or 1 1, wherein a shaft for a first drive element (8) and / or a shaft for a further drive element (9 ) passes through one or each brake station (6).

13. A method for adjusting a brake station (6) of a sheet brake (5) in one

Display of a sheet-processing machine with a sheet conveying system, wherein the sheet conveying system is designed as a chain conveyor system with two each guided laterally on the frame of the delivery delivery chains between which

Gripper carriage (3) are arranged,

wherein the brake station (6) is supported on a guide beam (10),

wherein the brake station (6) by an actuator (12, 13, 23) along the

Guide beam (10) is axially displaced and

wherein a drive (12, 23, 24, 25) and / or a traverse (18, 20) of the sheet brake (5) passes through the frame of the delivery,

characterized,

14. The method of claim 13, wherein the guide beam (10) has a downwardly open U-profile and / or the actuator (12, 13) at least partially encloses.

15. The method according to claim 13 or 14, wherein the actuating element (13) within a U-shaped guide beam (10) from the drive (12, 23) is displaced.

16. The method according to claim 13, 14 or 15, wherein the braking station (6) at a distance (S1, S2) to a traverse (18) and / or to another traverse (20) is moved.

17. The method of claim 13 14, 15 or 16, wherein the braking station (6) exclusively and / or at least approximately free of play on guide surfaces (14) of the actuating element (13) held and / or guided.

18. Sheet-processing machine with a delivery

with a sheet conveying system,

Gripper carriage (3) are arranged, and

with at least one axially displaceable brake station (6)

Sheet brake (5),

wherein the sheet brake (5) has a guide beam (10), at which the

Braking station (6) is supported,

wherein an actuator (12, 13, 23) for axial adjustment of the brake station (6)

is provided and

characterized,

in that the guide cross-member (10) has two vertically oriented outer surfaces and inner surfaces (14) arranged at a distance from one another, and an upper, horizontally arranged outer surface and inner surface (14) and the guide cross-member (10) is open at the bottom.

19. Sheet processing machine according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1 1, 12 and / or 18, wherein the guide beam (10) at least two at an angle of Has zero degrees deviating from each other arranged flat outer surfaces and / or inner surfaces (14).

20. Sheet processing machine according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1 1, 12, 18 and / or 19, wherein the guide beam (10) at least two at right angles to each other having arranged flat outer surfaces and / or inner surfaces (14).

21. Sheet-processing machine according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1 1, 12, 18, 19 and / or 20, wherein the guide beam (10) has a downwardly open U-profile having.

22. Sheet processing machine according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1 1, 12, 18, 19, 20 and / or 21, wherein the guide beam (10) has a vertical extent and has a horizontal extent and the vertical extent at least approximately corresponds to the horizontal extent.

23. Sheet-processing machine according to claim 18, 19, 20, 21 or 22, wherein one with the braking station (6) connected actuating element (13) is provided, which is guided by means of at least one flat surface (14) on the guide beam (10) and / or the brake station (6) carries.

24. Sheet-processing machine according to claim 18, 19, 20, 21, 22 or 23, wherein the guide cross-member (10) between drive elements (8, 9) or for the braking station (6) is arranged.

25. Sheet-processing machine according to claim 18, 19, 20, 21, 22, 23 or 24, wherein the guide traverse (10) with respect to a sheet running direction (BLR) at least approximately centrally to the brake station (6) and / or to drive elements (8, 9) or is arranged for the braking station (6).

26. Sheet-processing machine according to claim 18, 19, 20, 21, 22, 23, 24 or 25, wherein the braking station (6) is guided exclusively by an adjusting element (13) on the guide beam (10) and / or at least approximately free of play.

27. Sheet-processing machine according to claim 18, 19, 20, 21, 22, 23, 24, 25 or 26, wherein the braking station (6) by means of ground guide surfaces (14) of an actuating element (13) and / or the guide beam (10) opposite the guide beam (10) is stored and / or guided.

28. Sheet-processing machine according to claim 18, 19, 20, 21, 22, 23, 24, 25, 26 or 27, wherein an actuating element (13) for the braking station (6) projecting guide surfaces (14) which with recessed guide surfaces ( 14) of the guide beam (10) are in contact.

29. Sheet-processing machine according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1 1, 12, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27 and / or 28, wherein an actuating element (13) by a rotating threaded spindle (12) is displaceable.

30. Sheet-processing machine according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1 1, 12, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27 , 28 and / or 29, wherein a nozzle of a cleaning device, a blown air jet to a junction between a threaded spindle (12) and an interacting with this actuator (13) and / or a surface of a drive element (8, 9) or for the brake station ( 6) and / or a guide surface (14) for the brake station (6).

31. Method for adjusting a braking station (6) of a sheet brake (5) in one

Gripper carriage (3) are arranged,

wherein the brake station (6) is supported on a guide beam (10), wherein the brake station (6) by an actuator (12, 13, 23) along the

Guide beam (10) is axially displaced and

characterized,

in that an adjusting element (13) connected to the braking station (6) is guided by two spaced-apart vertically oriented inner surfaces (14) and / or a horizontally oriented inner surface (14) of the guide beam (10) and along flat inner surfaces (14) of the guide beam (10) is moved and the braking station (6) along a flat outer surface of the guide beam (10) is moved.

32. The method of claim 31, wherein the braking station (6) connected to the actuator (13) carries the braking station (6).

33. The method of claim 31 or 32, wherein the brake station (6) exclusively and / or at least approximately free of play on guide surfaces (14) of an actuating element (13) is held and / or guided.

34. Sheet-processing machine according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1 1, 12, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27 , 28, 29 and / or 30, wherein the sheet brake (5) at least or exactly two, three, four, five, six or seven axially displaceable braking stations (6).

35. Sheet-processing machine according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1 1, 12, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27 , 28, 29, 30 and / or 34, wherein the sheet brake (5) has a plurality of braking stations (6) and each braking station (6) is connected to one adjusting element (13).

36. Sheet-processing machine according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1 1, 12, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27 , 28, 29, 30, 34 and / or 35, wherein the Guide cross-member (10) a plurality of braking stations (6) carrying adjusting elements (13) on a flat surface (14) leads.

37. Sheet-processing machine according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1 1, 12, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27 , 28, 29, 30, 34, 35 and / or 36, wherein a drive (12, 23, 24, 25) and / or a traverse (18, 20) of the sheet brake (5) passes through a vertical frame wall of the display, which also carries chain guide rails of the chain conveyor system.

38. Sheet-processing machine according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1 1, 12, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27 , 28, 29, 30, 34, 35, 36 and / or 37, wherein on both sides drives (12, 23, 24, 25) and / or trusses (18, 20) of the sheet brake (5) pass through the frame of the delivery.

39. Sheet-processing machine according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1 1, 12, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27 , 28, 29, 30, 34, 35, 36, 37 and / or 38, wherein at a plurality of braking stations (6) each braking station (6) is associated with an outside of the frame wall of the display arranged drive (12, 23).

40. Sheet-processing machine according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1 1, 12, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27 , 28, 29, 30, 34, 35, 36, 37, 38 and / or 39, wherein a traverse (18) of the sheet brake (5) carries pivotable trailing edge stops (19), which together with the sheet brake (5) in or against a sheet running direction (BLR) to a delivery stack (2) can be positioned.

41. Sheet processing machine according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28 , 29, 30, 34, 35, 36, 37, 38, 39 and / or 40, wherein the sheet brake (5) on both sides via fixing plates (22) outside the frame walls of the display is mounted on the frame walls of the display.

42. Sheet-processing machine according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1 1, 12, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27 , 28, 29, 30, 34, 35, 36, 37, 38, 39, 40 and / or 41, wherein Verschutzungen for projecting through openings of the frame walls of the display drives (23, 12, 24, 25) and / or trusses (18, 20) are provided.

43. Sheet-processing machine according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1 1, 12, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27 , 28, 29, 30, 34, 35, 36, 37, 38, 39, 40, 41 and / or 42, wherein one or more braking stations (6) of the sheet brake (5) carry on both sides sheet brake elements (17).

44. Sheet-processing machine according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1 1, 12, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27 , 28, 29, 30, 34, 35, 36, 37, 38, 39, 40, 41, 42 and / or 43, wherein one or more braking stations (6) supporting elements or pneumatic elements can be assigned.

45. Sheet-processing machine according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1 1, 12, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27 , 28, 29, 30, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43 and / or 44, wherein the sheet brake (5) comprises a first square shaft drive (8) with one outside the frame of the display arranged drive (24) for slip-free drive a plurality of brake elements (17) and / or a second square shaft drive (9) with a arranged outside the frame of the display drive (25) for controlling pneumatic connections (1 1) a plurality of brake stations (6).

46. Sheet-processing machine according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1 1, 12, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27 , 28, 29, 30, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44 and / or 45, wherein a drive wheel (15) of the braking station (6) for driving a brake band (17 ) engages with pins in openings of the brake band (17).

47. Sheet-processing machine according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27 , 28, 29, 30, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45 and / or 46, wherein the sheet brake (5) received in a separate frame and designed to adjust to different sheet formats in and against the sheet travel direction (BLR) displaced.

48. Sheet-processing machine according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1 1, 12, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27 , 28, 29, 30, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46 and / or 47, wherein several or all drives (23, 24, 25) of Sheet brake (5) with a control device or the machine control in conjunction.

49. The method of claim 13, 14, 15, 16, 17, 31, 32 and / or 33, wherein several or all drives (23, 24, 25) of the sheet brake (5) are controlled by a control device or the machine control for adjustment or Modification of the storage speed and / or the course of movement of all brake elements (17) and / or for Axialverstellung one or more braking stations (6).

50. The method of claim 13, 14, 15, 16, 17, 31, 32, 33 and / or 49, wherein a cleaning device intermittently and / or depending on an axial adjustment of the brake station (6) ejects a blast air jet or a blast air impact by means of a nozzle ,