EP2296887A1 - Système de préhension d un cylindre de guidage d encre dans une machine d impression - Google Patents

Système de préhension d un cylindre de guidage d encre dans une machine d impression

Info

Publication number
EP2296887A1
EP2296887A1 EP09757202A EP09757202A EP2296887A1 EP 2296887 A1 EP2296887 A1 EP 2296887A1 EP 09757202 A EP09757202 A EP 09757202A EP 09757202 A EP09757202 A EP 09757202A EP 2296887 A1 EP2296887 A1 EP 2296887A1
Authority
EP
European Patent Office
Prior art keywords
cylinder
pin
gripping
roller
support
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP09757202A
Other languages
German (de)
English (en)
Other versions
EP2296887B1 (fr
Inventor
Günter Rogge
Georg Rasch
Marco Finke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG
Publication of EP2296887A1 publication Critical patent/EP2296887A1/fr
Application granted granted Critical
Publication of EP2296887B1 publication Critical patent/EP2296887B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B41F13/24—Cylinder-tripping devices; Cylinder-impression adjustments
    • B41F13/34—Cylinder lifting or adjusting devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/0016—Storage devices for printing cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2213/00—Arrangements for actuating or driving printing presses; Auxiliary devices or processes
    • B41P2213/80—Means enabling or facilitating exchange of cylinders
    • B41P2213/804—Means enabling or facilitating exchange of cylinders radially

Definitions

  • the invention relates to a device for detecting and transporting at least one color leading cylinder of a printing press according to the preamble of claim 1, a color leading cylinder according to the preamble of claim 17 and a method for detecting and transporting at least one cylinder according to the preamble of claim 19.
  • Such pressure cylinders usually comprise a cylinder body and at its end faces in each case a pin.
  • the surface of the cylinder body is available for the printing plate, which is glued, for example, on the cylinder body or mounted on a sleeve, which is then pushed onto the cylinder body, while the pins are provided in particular for the storage of the cylinder in the printing press. If such a cylinder to be changed, it is also detected by the pins.
  • the present invention does not relate solely to impression cylinders, but to all cylinders in a printing press that carry ink.
  • this can be anilox rolls.
  • anilox rollers serve to apply printing ink to the printing cylinder.
  • Anilox rollers can also be exchanged, for example, when the ink is changed in the respective inking unit.
  • the inking units are generally arranged around a central impression cylinder.
  • the inking unit comprises at least one printing cylinder which is connected to the
  • Substrate leading impression cylinder is adjustable.
  • Printing cylinder is in turn the anilox roll adjustable, which removes the ink, which transmits it to the printing cylinder, from a paint reservoir, such as a doctoring chamber.
  • a paint reservoir such as a doctoring chamber.
  • Ink roller is interposed.
  • Printing machines that operate on other printing methods include additional and / or different cylinders than those described for flexographic printing.
  • each of them is mounted with their pins in each case a bearing element which is movable relative to the printing press frame.
  • this bearing element is often a bearing block, which is displaceable on guides. These guides and the bearing block are arranged on or on brackets of the printing press frame.
  • a system for detecting and transporting at least one ink-carrying cylinder is provided in printing presses of the prior art, which can receive the pins, which pierce the bearing elements, from the front sides.
  • supporting elements are designed so that the pins rest on them.
  • the support elements are arranged on a movement device, which in turn are arranged on a support frame and movable relative thereto.
  • the movement device is designed such that the support elements on the outside of the consoles of the printing press frame are movable past in order to detect the pins from the outside can.
  • the publication EP 1 016 522 A1 shows such a system. Cylinders with end pins are also often referred to as pressure rollers.
  • the object of the invention is therefore to propose an improved system that manages with a smaller space.
  • each support element comprises at least two pincer-like gripping jaws, with which a pin of a cylinder is at least partially encompassed.
  • rollers are not taken from the side (seen in the axial direction) ago, but for example from above.
  • the support members can then be inserted between two consoles and then can grasp the cylinder pin.
  • two such support elements are provided, each of which comprises a journal of the roller. Due to the pincer-like design, the movement for detecting the pins only needs to take place in the radial direction.
  • This arrangement not only has advantages in terms of space consumption, but also offers the freedom to construct the entire inking system according to the wishes.
  • a drive can be provided whose drive axis is substantially aligned with the axis of rotation of the cylinder.
  • Such drives are known as "direct drives”.
  • a first gripping jaw is stationary.
  • This jaw can therefore be fixedly mounted on a moving device of the system.
  • This movement device may be a boom of a crane.
  • a second Gripping jaw is then designed to be movable so that the pin can be gripped by the movement of the second gripping jaw. Due to this arrangement, the mechanical effort for the movement of the jaws is minimized.
  • the movement device can drive the first gripping jaw against the journal of the cylinder, so that it bears against the journal or at least almost rests on it. Subsequently, the second jaw can be moved, so that the pin is now encompassed and thereby held securely. A drop of the cylinder is thus almost impossible.
  • a locking device when the second gripping jaw between an open position and a closed position in which the pin is gripped, is movable and when the second gripping jaw is locked in the closed position by a locking device is particularly advantageous.
  • This locking device thus prevents the second jaw unintentionally opens and that the cylinder falls from the support elements. Only when the locking device is unlocked, the opening of the second gripper jaw is possible.
  • the second gripping jaw is arranged at the end of a shaft.
  • the jaw extends radially away from this shaft.
  • the shaft can then be acted upon by a torque, so that a rotation of the shaft leads to a pivoting of the gripping jaw.
  • the second gripping jaw is movable by means of a slide, which can act on the mentioned shaft, wherein the slide can be driven by a pressure medium cylinder. Since the gripper jaw only has to be moved into two different positions (open and closed position), the use of a pressure cylinder is an inexpensive way for a drive, especially if the Pressure medium cylinder is a compressed air cylinder. The force applied by the drive is mediated according to the invention by the slide of the shaft and / or the second jaw.
  • the shaft comprises a bolt extending radially away from it, which engages in a slide introduced into the slide.
  • the slider carries the locking device on a front side, which comprises a pin.
  • a front side which comprises a pin.
  • this pin engages in a bore of the jaw, which is parallel to the shaft.
  • the gripper jaws have support edges on which the pin rests when it is worn. It is advantageous if the support edges include an angle of less than 180 degrees. The support edges are then on the lines of an open triangle, which practically serves as a receiving recess for the pin so that it does not slip sideways or even rolls. It is preferred if this angle is 120 degrees or less. 120 degrees is the angle that two edges of a regular hexagon take each other. However, it is particularly preferred if the two support edges occupy an angle of 60 degrees, take the two lines in a regular triangle. Now, if the cylinder has corresponding flattenings, which can be circumscribed by a regular triangle, it is advantageous if the support edges are designed so that they completely abut these surfaces.
  • the support element comprises a probe element, which rests against the pin when the gripping jaws embrace the pin or at least when the movement device has already moved the gripping jaws to a position in which the gripping jaws can be closed. Nevertheless, the probe element can already be in touching contact with the journal if the movement device still moves or already moves the gripping jaws.
  • the probe element can be acted upon by a force that can be applied by a prestressed resilient element. If the jaws moved by the movement device to the pin, the probe element is moved against this force. When the gripping jaws are closed, the feeler element pushes the journal against the bearing edges of the gripping jaws, due to the beauhlage with the said force. It is particularly advantageous if the feeler element has a contact surface which rests against one or more flats of the journal, so that the force is applied to the journal over as large a contact surface as possible. In this context, it is worth noting that the contact surface and the supporting edges form a regular triangle. Now, if the pin includes flats inscribed in the same regular triangle, the pin is completely fixed during transport.
  • the support element comprises sensors with which the positions of the probe element can be determined. In this way it can be determined, for example, how far the feeler element has been displaced by the approach of the support element. For example, statements can then be made as to whether an unintentional collision has occurred. This information may then be used by a controller of the system of the invention for an appropriate response, which may be an emergency stop.
  • sensors are also particularly advantageous if different types of cylinders in the printing press have different diameters, at least in the areas in which the probe element engages. In this case, statements about the cylinder types can be made via the position determinations. In this way, errors in the assembly of the printing machine can be detected if, for example, an anilox roller was erroneously seized instead of a printing cylinder. Such error detection allows for speedy troubleshooting, which ultimately results in the press being quickly prepared.
  • the invention also relates to color-leading cylinders in a printing machine comprising a cylinder body and end-side pins.
  • each pin comprises at least three flats at an axial position. Because of these flats, it is possible to securely grasp such a pin with the gripping jaws of a system for detecting and transporting. In addition to safe holding, it is also possible to transport the cylinder in a defined angular position.
  • each pin comprises at least one further flattening at a further axial position.
  • each pin comprises at least one further flattening at a further axial position.
  • Fig. 1 side view of a printing machine
  • FIG. 2 view M-Il of Fig. 1st
  • FIG. 3 view M-III of FIG. 2
  • FIG. 4 shows a section through the journal of a paint-transferring roller according to the invention.
  • FIG. 5 shows V-V from FIG. 2 FIG. 6 The components of the mechanism with which the first gripping arm is pivoted
  • FIG. 7 The components of Figure 6 and a sensor Fig. 8
  • Fig. 11 The components of Figure 6 and a sensor (with open Picker)
  • Fig. 1 shows a printing machine 1, which represents a central cylinder flexographic printing machine in the illustrated embodiment. It therefore comprises an impression cylinder 2, on which the printing material 3 is guided.
  • the direction of rotation of the impression cylinder is represented by the arrow R. So that the printing material 3 rests completely on the counter-pressure cylinder 2 before the first pressure roller, it is guided by a pressure roller 4.
  • each inking unit 5 initially comprises a bracket 6, which extends away from a central machine frame 7.
  • Each console carries the cylinders necessary to print one color.
  • anilox rollers 9 are provided, which are accordingly adjustable to the pressure rollers 8.
  • the anilox rollers 9 are supplied from the doctor chambers 10, not shown in FIG. 1, with the respective desired ink.
  • the said rollers 8, 9 are mounted in bearing blocks, which means suitable displacement devices are displaceable relative to the counter-pressure cylinders.
  • These displacement means may comprise guide rails which are mounted on or on the console and which extend away from the impression cylinder.
  • the displacement devices further include drives for moving the bearing blocks along the guide rails, these drives usually have a spindle-spindle nut combination.
  • Each of the rollers 8, 9 is supplied with torque by torque-supplying components. Often, these are gears that mesh with each attached to the roller gear. These gears can be driven by a central drive. But there are also since A few years ago known printing presses, which include a separate drive for each roller 8, 9, which drive the respective roller via gears.
  • the bearings of the bearing blocks which store these rollers are designed in such a way that removal of the rollers is possible. It is advantageous if the bearings remain on the journal of the rollers and parts of the bearing block are folded down, so that the rollers are removed upwards. In addition, the roller - if necessary before - decouple from the drive train.
  • the printing press is conceptually divided by an imaginary center line 11 into two halves, so that half of the inking units 5 lies on each side of this center line.
  • Each half is operated by a crane 20 in the embodiment shown.
  • the crane 20 is able to remove both the pressure rollers 8 and anilox rollers 9 or all the rollers involved in the printing process from the printing press or to supply these.
  • the crane 20 comprises for gripping the rollers 8, 9 grippers 21, which are able to engage around the pins of the roller. Each end of the roller so a gripper 21 is assigned.
  • Each gripper 21 is disposed at one end of a boom 22, wherein the boom along a support beam 23 are movable.
  • Boom and support beams are advantageously arranged horizontally. With this arrangement, it is possible to insert the gripper 21 between two consoles 6 in the printing press and there to take a roller 8 or 9.
  • the support beam 23 is arranged to be vertically displaceable on a vertical support 24. To extend the travel possibilities even more, the vertical support 24 is displaced.
  • the vertical support 24 is arranged for this purpose in or on a support frame 27.
  • the support frame 27 consists of two columns 25 which are interconnected by a carrier 26.
  • the vertical support 24 advantageously runs on or on the carrier 26 arranged rails.
  • the crane comprises a total of three traversing possibilities, of which preferably two grippers 21 in horizontal and one move the grippers in the vertical direction. In this way it is possible to operate all inking units with rollers while leaving the actual support frame 27 completely outside the printing press.
  • the directions of movement of the crane are always parallel to a plane perpendicular to the axes of the rollers. In other words, the crane is not able to move the rollers in the axial direction.
  • a separate drive for example an electric motor, is provided for each of the three traversing possibilities.
  • the roller bearing 30 comprises numerous roller positions 31, in each of which a roller 8, 9 can be deposited.
  • the crane 20 with its possible travels can transport a roller 8,9 not only between an inking unit and a roller position 31, but also between two roller positions 31, so that during the printing operation, the rollers can be arranged in the roller bearing that the setting for the following print job as effectively as possible, ie can be done with the shortest possible travel for the crane 20.
  • a free space 28 is provided between the actual printing press and the roller bearing 30 into which a roller conveyor carriage 29 can be inserted and positioned.
  • the crane 20 can grasp the rolls fed in this way and deposit them in the roller bearing 30 and / or in the inking units. Subsequently, the rolls to be removed can be lifted onto the roller conveyor carriage 29.
  • At least one of the roller positions 31 is designed as a change position 32, in which a roller 8,9 can be held in one piece by means described below, so that a pushed onto the roller printing or anilox sleeve on the not held end can be pulled off axially.
  • anilox rollers or pressure rollers can be stored at any desired roller positions 31.
  • roller positions 31 are arranged on uprights 33 of the roller bearing 30.
  • vertically spaced projections 34 are attached to the uprights 33, which on the outside comprise recesses 35 which receive the pins of the rollers in order to prevent them from rolling away (see FIG. 2).
  • At certain uprights 33 are arranged - substantially horizontal - carrier 36, which include further roller positions. These horizontal beams 36 at least partially span the free space 28, in which a roller conveyor 29 can be inserted. This measure also helps to keep the times for loading the inking units 5 with new rollers as short as possible.
  • a roller bearing 30 is provided with at least 18 roller positions 31 each. These 18 roll positions are capable of accommodating three sets of four-roll press rolls and one set of four-roll anilox rolls. Another two positions are designed as change positions and / or serve to accommodate one or more rollers that have been removed from an inking unit. If both free positions for receiving two rollers from one or more inking units as well as clearing positions to be kept free are to be provided, the number of times increases. If the printing press is operated exclusively with rollers with pushed-on printing sleeves, usually no rollers need to be fed with the roller conveyor carriage 29.
  • FIG. 2 shows the view H-II from FIG. 1, wherein the crane with its grippers 21 has already grasped the pressure roller 8 or has not yet released it.
  • various components of the inking unit 5 can be seen, which are not shown in the figure 1.
  • On each of the two consoles 6 are guide rails 12 on which the bearing blocks 13, in which at least in printing operation the pressure roller 8 is mounted with its pins 14, is movable.
  • For the method are offered driven spindle-spindle nut combinations, of which the spindle nuts 15 which are fixedly arranged in the bearing blocks, can be seen. But other types of drives for moving the bearing blocks can be used at this point.
  • bearings 16 are arranged, which are in corresponding shells 17, which are components of the bearing blocks 13.
  • the left of the two shells 17 is shown in the open state, whereas the right bearing is still shown closed.
  • a lid 18 is folded over the bearing 16 and connected to the shell 17, so that the roller 8 can not move relative to the bearing block in the printing operation.
  • the drive is advantageously gearless on the pressure roller 8.
  • the extension piece 40 which is displaceable by a not shown in detail in the axial direction of the roller 8, has already been deducted from the pin 14 of the pressure roller 8 in FIG.
  • the drive 41 is still rotatably coupled with the pressure roller 8 in the illustration shown. It is worth noting that the mounted on the frame piece of the coupling 19 is acted upon by the drive 41 with the interposition of a bellows, which is compressible and stretchable in the axial direction and torsionally stiff in the circumferential direction, with torque.
  • each gripper 21 of the crane 20 has already taken a pin 14.
  • an angle 50 is fixedly attached end.
  • Each elbow 50 carries a support piece, which in the embodiment shown as a tubular piece 51st is formed, whose axis is perpendicular to the extension direction of the boom 22 and thus parallel to the axial extent of the pressure roller 8.
  • This support piece mainly carries the actual gripper 21 and other components that are yet to be described.
  • On the support piece a bearing and guide piece 52 is arranged.
  • the bearing and guide piece thus represents an extension of the support piece on the inside.
  • the gripping jaws 53 and 54 of the gripper 21 are arranged on the bearing and guide piece 52.
  • FIG. 3 shows the view III-III in FIG. 2. Identical components are provided with the same reference symbols, so that a renewed description of these components is dispensed with. It can once again be clearly seen from the figure that the components 51 and 52 extend from the extension arm in the direction of the pressure roller 8.
  • a first gripper arm 53 is arranged on the inside of the bearing and guide piece 52. This first gripper arm 53 is advantageously mounted rotatably in the bearing and guide piece 52.
  • a second gripper arm 54 is also inside of the bearing and guide piece, preferably fixed, arranged (see Figure 2).
  • Figure 4 shows the view IV - IV of Figure 2.
  • This view represents a cross section through the pin 14 at the axial position at which the two gripper arms 53 and 54 engage the pin.
  • the gripper arms 53, 54 have at the areas where they come into contact with the pin, Contact surfaces, which can wear a replaceable wear layer 55 (see Figure 5).
  • it has flattened portions 56 on the circumferential surface at the axial positions mentioned, which in the circumferential direction are preferably completely in contact with the replaceable wear layer 55.
  • the flats are preferably evenly distributed on the circumference of the pin, so that they lie in the embodiment shown on the edges of a uniform triangle. Each two flats thus occupy an angle of 60 degrees to each other.
  • the contact surfaces of the gripper arms 53 and 54 also corresponding to an angle of 60 degrees to one another.
  • FIG. 5 shows the view V-V from FIG. 2.
  • FIG. 5 shows that the first gripper arm 53 and the second gripper arm 54 have gripped the journal 14 of the roller 8.
  • a probe element 57 is still on the pin 14.
  • This probe element 57 is mounted displaceably relative to the bearing and guide piece.
  • the probe member 57 presses the pin 14 against the gripping arms 53, 54, so that the pin is secured against falling out.
  • the gripper arm 54 has a guide groove, not shown, in which the projection 59 of the probe element 57 engages. Furthermore, a second guide may be provided, which consists of a mounted on the probe element pin which engages in a bore in the bearing and guide piece 52. Alternatively, the pin can be mounted in the bearing and guide piece 52 and engage in a bore of the probe element 57.
  • the shaft 60 can be seen, on which the first gripping arm 53 is fixedly arranged.
  • the gripping arm is thus pivotable about the shaft 60 when it is acted upon by a torque.
  • the first gripping arm 53 additionally comprises a bore 61 into which a locking pin can engage. Once this is done, the gripping arm 53 is secured against pivoting, so that unintentional opening of the gripper 21st is avoided.
  • the gripper arm 54 is fixedly mounted on the bearing and guide piece 52.
  • Figures 6 and 7 show the components of the mechanism with which the first gripping arm 53 is pivoted.
  • a slider 62 is slidably disposed in the direction of the double arrow D in the bearing and guide piece 52.
  • Incorporated in this slide is a guide groove 63 whose ends are offset laterally, ie transversely to the direction of the double arrow D.
  • a pin 64 is fixed to the shaft 60 and engages the guide groove 63 a.
  • a displacement of the slider 62 now causes lateral forces on the pin 64 act, which thus exerts a torque on the shaft 60, so that the first gripping arm 53 is pivoted.
  • the slider 62 has at its end facing the first gripping arm 53 a locking pin 64 which can engage in the bore 61 of the first gripping arm 53.
  • the locking pin 64 and the slider may be integrally formed. So that the first gripping arm 53 no longer carries out a pivoting movement when the locking pin is inserted into the bore 61 of the gripper arm 53, the guide groove 63 is formed at the end facing away from the gripping arm 53 a small piece without lateral offset.
  • a drive is provided which is designed as a pressure medium cylinder 65, for example as a compressed air cylinder.
  • This pressure medium cylinder 65 is arranged within the support piece 51 and has two pressure medium connections 66, which are arranged on both sides of the piston 67, so that it can be acted upon by the movement of the piston 67 from one side with a force.
  • the piston 67 is connected to the slider 62 via the piston rod 68.
  • the pressure medium cylinder 65 is additionally equipped with two sensors, not shown, the messages to a control device, when the piston 67 in one of the two The final position has arrived. If so, the first gripper arm is either fully open or closed and locked. In FIGS. 6 and 7 the last of the two cases is shown.
  • a sensor 70 is still shown.
  • a second, arranged at the same height sensor 71 is not visible in this figure.
  • These sensors scan a sheet 72, which is attached to the probe element 57.
  • the sensors detect whether the sheet, when the feeler element 57 is moved in the direction of the double arrow B, lies in the sensing range of a sensor.
  • the sheet 72 and the arrangement of the sensors can be seen from FIG.
  • the sheet is shaped so that this is not initially in the sensing range of the two sensors and that this is in the sensing range of each sensor, until finally the sheet is in the sensing range of both sensors.
  • other elements can be used, which are moved with the probe element and have the same functionality together with the sensors.
  • the two sensors can interrogate a total of four positions of the probe element 57 together with the plate: If both sensors do not plate off, the gripper is empty, ie. there is no pin. If in one of the sensors, the sheet is in the touch area, a pin has been taken. If the journal diameters are different for different types of rollers, for example for pressure rollers and anilox rollers, the type of roller can be inferred from the information which sensor the sheet "sees.” If the metal plate is within the sensing range of both sensors, a malfunction can be assumed Now that neither the gripper is empty nor one roller of the two types of rollers has been properly gripped, the information provided by the sensors may be fed to a controller which uses this data to control the crane to change rollers.
  • Figures 9, 10 and 11 show the same views as Figures 5, 6 and 7, but with an opened first gripping arm 53.
  • the piston 67 has been moved to its retracted position.
  • the pin was pushed to the left (see Figure 10), so that the first gripping arm 53 has been swung.
  • a roller 8 located in a printing unit is first rotated by the rotary drive in a so-called zero position, in which the further flattening 37 (in the case of a pressure roller) or one of the further flats 37 (in the case of an anilox roller) points downwards and runs horizontally, decoupled from the rotary drive or the soregisterantheb by, for example, form-fitting clutches are moved apart so far that the roller 8 is completely exposed with their pin 14.
  • the lid 18 of the bearing 16 are released.
  • the actual unfolding of the lid 18 is advantageously carried out by the pins during the lifting of the roller 8. Now determines the control device, for example, due to an operator input, the roller to be changed.
  • the control device then controls the crane 20. First, the crane is positioned in height, then the boom 22 is extended and now protrudes above the inking unit, from which a roller is to be removed, into the inking system. Now the actual positioning of the gripper takes place on the pin.
  • the second gripping arm 54 is moved along its extension direction by a combined lowering movement of the vertical adjustment and a horizontal movement of the jib. If there are three flats 56, this direction of extension is inclined 30 degrees from the vertical.
  • the replaceable wear layer 56 of the second gripper arm 54 is advantageously moved a few millimeters past one of the flats 56. A contact of these two elements is not yet necessary and, because of the associated wear and undesirable.
  • the travel is chosen so large that when the first gripping arm 53 is closed, even this 53 does not touch the corresponding flattening or only without a significant exercise of a force. This is advantageous because then only a comparatively small torque has to be applied for the pivotal movement of the first gripping arm 53.
  • a compressed air piston which moves the slider and thus the first gripper arm 53 in the manner described.
  • the piston 67 may have reached its second end position, which is detectable by the corresponding sensor (see above). If the sensor does not transmit a corresponding signal, there may be a fault. This can be made clear to the operating personnel via a display device, for example via a monitor, or a suitable warning device.
  • the roller 8 - advantageously initially in the vertical direction - is dug out of the inking unit. Initially, the replaceable wear layers 55 attach to the flats. The roller 8 is transferred to a roller position 31 or 32 of the bearing 30.
  • roller 8 in the gripper still assumes a defined angular position, the roller can now be stored so that the further flats 37 are in contact with corresponding counter elements, so that the roller can not rotate in the roller bearing and for a further recording by the gripper is in the correct angular position.
  • This counter element can be an edgewise arranged sheet, so that the further flattening 37 touches the upper edge of this sheet.
  • the loosening of the gripper takes place by opening the first gripping arm 53, wherein after successful opening the second sensor of the pressure medium piston cylinder 65 sends a corresponding signal to the control device. Now, the gripper 21 must be moved again in the direction of extension of the second gripping arm 54.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Abstract

L’invention concerne un dispositif de préhension et de transport d’au moins un cylindre de guidage d’encre d’une machine d’impression (1), le dispositif comprenant des éléments porteurs, qui viennent en contact avec les tourillons du cylindre, afin de pouvoir soulever le cylindre. Chaque élément porteur comprend au moins deux bras de préhension réalisés sous la forme de pinces, permettant de saisir au moins partiellement un tourillon du cylindre.
EP09757202.8A 2008-05-29 2009-05-27 Système et méthode de préhension d'un cylindre de guidage d'encre dans une machine d'impression Not-in-force EP2296887B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200810025995 DE102008025995B4 (de) 2008-05-29 2008-05-29 Vorrichtung zum Erfassen eines Farbe führenden Zylinders einer Druckmaschine
PCT/EP2009/003743 WO2009146819A1 (fr) 2008-05-29 2009-05-27 Système de préhension d’un cylindre de guidage d’encre dans une machine d’impression

Publications (2)

Publication Number Publication Date
EP2296887A1 true EP2296887A1 (fr) 2011-03-23
EP2296887B1 EP2296887B1 (fr) 2015-01-21

Family

ID=41137505

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09757202.8A Not-in-force EP2296887B1 (fr) 2008-05-29 2009-05-27 Système et méthode de préhension d'un cylindre de guidage d'encre dans une machine d'impression

Country Status (5)

Country Link
US (1) US9056451B2 (fr)
EP (1) EP2296887B1 (fr)
DE (1) DE102008025995B4 (fr)
ES (1) ES2532947T3 (fr)
WO (1) WO2009146819A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107107524B (zh) * 2014-12-04 2019-05-28 鲍勃斯脱梅克斯股份有限公司 工具保持头部、输送托架、以及用于安装和移除用于转换平坦基板单元的工具的方法
JP6980300B2 (ja) * 2017-08-21 2021-12-15 株式会社シンク・ラボラトリー 多色グラビア輪転機
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ES2532947T3 (es) 2015-04-06
EP2296887B1 (fr) 2015-01-21
US9056451B2 (en) 2015-06-16
DE102008025995B4 (de) 2012-12-06
DE102008025995A1 (de) 2009-12-24
WO2009146819A1 (fr) 2009-12-10
US20110072992A1 (en) 2011-03-31

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