EP1461208B1 - Dispositifs de reglage de rouleaux dans une machine a imprimer - Google Patents

Dispositifs de reglage de rouleaux dans une machine a imprimer Download PDF

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Publication number
EP1461208B1
EP1461208B1 EP02804558A EP02804558A EP1461208B1 EP 1461208 B1 EP1461208 B1 EP 1461208B1 EP 02804558 A EP02804558 A EP 02804558A EP 02804558 A EP02804558 A EP 02804558A EP 1461208 B1 EP1461208 B1 EP 1461208B1
Authority
EP
European Patent Office
Prior art keywords
roller
rollers
actuators
force
pressure
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.)
Expired - Lifetime
Application number
EP02804558A
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German (de)
English (en)
Other versions
EP1461208A2 (fr
Inventor
Bernd Klaus Faist
Wolfgang Otto Reder
Georg Schneider
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.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer AG
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 Koenig and Bauer AG filed Critical Koenig and Bauer AG
Priority to DE10244044A priority Critical patent/DE10244044B4/de
Priority to EP04102477A priority patent/EP1468824B1/fr
Publication of EP1461208A2 publication Critical patent/EP1461208A2/fr
Application granted granted Critical
Publication of EP1461208B1 publication Critical patent/EP1461208B1/fr
Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/30—Arrangements for tripping, lifting, adjusting, or removing inking rollers; Supports, bearings, or forks therefor
    • B41F31/301—Devices for tripping and adjusting form rollers
    • 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
    • B41F13/20—Supports for bearings or supports for forme, offset, or impression cylinders
    • 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
    • B41F13/08—Cylinders
    • B41F13/24—Cylinder-tripping devices; Cylinder-impression adjustments
    • B41F13/34—Cylinder lifting or adjusting devices
    • B41F13/36—Cams, eccentrics, wedges, or the like
    • 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
    • B41F13/40—Cylinder lifting or adjusting devices fluid-pressure operated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/30—Arrangements for tripping, lifting, adjusting, or removing inking rollers; Supports, bearings, or forks therefor
    • B41F31/32—Lifting or adjusting devices
    • B41F31/36—Lifting or adjusting devices fluid-pressure operated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F7/00—Rotary lithographic machines
    • B41F7/20—Details
    • B41F7/24—Damping devices
    • B41F7/40—Devices for tripping or lifting damping rollers; Supporting, adjusting, or removing arrangements therefor

Definitions

  • the invention relates to a device for setting a pressing force exerted by a first roller on at least one second roller in a printing machine and for switching on / off a first roller to or from at least one second roller according to the preamble of claim 1.
  • Inking units or dampening units in printing presses are used to convey the ink required for the printing process or the required dampening solution from corresponding supply devices to the printing zone.
  • rolls or cylinders are provided in the inking unit or dampening unit.
  • roller and cylinder have an equivalent meaning for the understanding of the present invention. The rolls come to rest in so-called roll strips, so that the ink film or dampening solution film in the roll strip can be transferred from one roll to another roll.
  • adjustable rollers are provided in the machine frame, so that can be changed by adjusting these adjustable rollers relative to the other rollers of the contact pressure in the roll strip.
  • an inking unit with a frame-mounted friction roller and a frame-mounted form cylinder is known, wherein the ink is transferred from the distributor roller on the forme cylinder by a arranged between the friction roller and form cylinder applicator roll.
  • the applicator roll in turn is adjustably mounted in the machine frame and can be pressed with a variable force in the gap between the distributor roller and the forme cylinder.
  • the device for the storage of the applicator roll is designed so that the force with the applicator roll in the Gap between form cylinder and distributor roller is pressed, always along an angle bisector between the distributor roller and the forme cylinder acts. This means, in other words, that although the size of the force for pressing the applicator roll is variable, but the direction of the force is fixed by the structural design of the adjustment device unchangeable. To adjust the contact pressure in the roll strip between the forme cylinder and the distributor roll on the one hand and the applicator roll on the other hand, so only the contact pressure can be changed in size, resulting in the resulting contact pressures in the roll strip due to the given geometry.
  • a device for clamping bushings for printing and forme cylinder bearings of a printing press comprising a hydraulic pressure of the bearing bushes against the bore wall of the machine frame, wherein the bearing bushes consist of two collapsed bushings, wherein in the Inner wall of the outer sleeve sleeve two hydraulically actuated pressure chambers are incorporated, which are both sides at 120 ° to the resultant of the forces acting on the bearing mean forces.
  • the concentricity of the cylinder can be improved, because by a clearance of the game, which have the bearing bushes in the receiving bore of the machine frame, a largely vibration-free running of the cylinder is achieved.
  • the patent DE 15 61 014 C1 shows an adjustable in only one direction roller bearing, especially for friction and application rollers of inking units on printing machines, wherein adjusting means are provided for adjusting the roller transverse to its axis, wherein the adjusting means between a bearing wall connected to the bearing pin and a roller end receiving, preferably cup-shaped housing are mounted, wherein the bearing pin and the housing by the adjusting means counteracting spring elements together are connected.
  • the spring elements are preferably formed as a radially extending rubber buffer or as a pressurizable air or liquid pressure chamber and acting on the bearing adjustment means either as a radially disposed adjusting screw or as two arranged at 45 ° to a frame-fixed rib of the journal adjusting screws.
  • the pitching or stopping of the roller and thus the adjustment of the roller bearing can also be arranged by two diametrically arranged in the interior of the housing, acted upon with air or a liquid pressure chambers, wherein the oppositely acting pressure chambers are pressurized depending on the desired direction of action.
  • the adjusting of the adjustably mounted roller to adjacent rollers is carried out in the disclosed in DE 15 61 014 C1 embodiments preferably in that an inserted in an elastic body pressure chamber or a piston movably arranged are pressurized, the pressure chamber due to their endeavor, themselves To expand under pressure in their volume, or the piston moved by the pressure the adjustably mounted roller can perform a travel.
  • the contact pressure in the roller strip between the adjustably mounted roller and its adjacent rollers is accomplished by the position of the adjusting screw (s).
  • the shutdown of the adjustably mounted roller is effected by a release of the pressure in the pressure chamber and preferably by a regression of the elastically deformed elastic body.
  • each applicator roll is mounted in each case on a pivotable about an ink fountain roller lever.
  • the bearing point of the applicator roll is arranged with a pivot lever and in the longitudinal direction of which is connected to the piston which can be moved by pressure medium, the applicator roller, when it pressurizes this piston, to the inking roller, or is turned off by it.
  • the pivot lever is pivotable by a further arranged in a cylinder pressure medium-loading piston, said piston pivots the pivot lever to the inking roller at its Druckstoffbeetzstoffung while the applicator roll hangs on a forme cylinder or switches off from this.
  • a disadvantage of this device is that the pistons and pivoting levers for their arrangement and for carrying out their movement on the printing unit take up a considerable amount of space, and because of their direct proximity to ink-carrying rollers, for example. B. are exposed to significant pollution by color fog, resulting in a certain susceptibility arises, which is why time-consuming and costly cleaning and maintenance work on a hard to reach place the printing press are required.
  • From DE 100 01 582 A1 discloses a device for adjusting the contact pressure between rollers in a printing machine is known, wherein between adjacent rollers hydraulic, preferably designed as a double-piston actuator are arranged.
  • EP 0 958 918 A1 discloses an apparatus and a method for the semi-automatic setting of rolls, wherein an adjustable first roll is set against at least one frame-fixed second roll, wherein resilient means urge the first roll in the direction of the second roll with a spring-elastic force ,
  • the invention has for its object to provide a device for adjusting a force exerted by a first roller at least on a second roller in a printing machine pressing force and for turning on / off a first roller to or from at least one second roller.
  • the achievable with the present invention consist in particular in that the devices are very compact and avoid the aforementioned disadvantages by integrating the actuators in a roller bearing housing.
  • the position of the adjustably mounted roller is fixed after adjustment of the contact pressure with respect to the other two rollers by actuation of a fixing device. If the size and direction of the force for the adjustment of the adjustably mounted roller can be selected substantially freely, this can also be used for shutting off the paint or the dampening solution. For these applications, the force is selected to adjust the adjustably mounted roller in a direction that points away from the other two rollers. As a result, the adjustably mounted roller can be moved out of the gap until no contact between the adjustably mounted roller and the other rollers exists. As soon as the adjustably mounted roller is separated from the other rollers, no dampening solution or color is transferred to the roller strip.
  • the adjustably mounted roller may also be arranged on a lever mechanism pivotable about the axis of rotation of one of the other rollers.
  • the roller can be lifted by driving the lever mechanism of one of the other rollers.
  • the adjustably mounted roller can be pressed with an adjustable in size and direction force in the gap between the other two rollers after starting the functional position of the Hebeiwerkes in which the adjustable bearing roller to the two other rollers to the plant. This adjustment is then fixed by actuating a fixing device between the adjustably mounted roller and the lever mechanism. If later the color or dampening solution should be turned off, the lever mechanism is pivoted to the first functional position, in which the adjustably mounted roller of the one roller is lifted off. When hiring the color or the dampening solution then pivoting back of the lever mechanism in the second functional position without additional adjustment of the contact pressures, since the correct setting is fixed by the fixing between the lever mechanism and adjustably mounted roller.
  • a device 20 for adjusting the contact pressure between a first roller 21 and a second roller 22 is shown.
  • the roller 21 can be releasably secured to the ends of its axle 23 on a device 20 provided on the quick release 24.
  • Such snap fasteners are known from the prior art and have a semicircular bearing shell into which the ends of the shaft 23 can be inserted. By attaching an upper bearing shell, not shown in FIG. 1, the axis 23 can then be fixed to the quick-release fastener 24.
  • the device 20 is essentially composed of a frame holder 26 and a roll holder 27, which can be displaced relative to each other in a plane which extends perpendicular to the plane of the drawing against each other.
  • the frame holder 26 is constructed of a base plate 28 which can be pivotally attached to the frame of a printing press, for example by means of a pivoting arm, and a sleeve body 29.
  • the sleeve body 29 On the side facing the roller 21, the sleeve body 29 has a recess 31 into which a cylindrical portion 32 of the roller holder 27 engages.
  • the inner diameter of the recess 31 and the outer diameter of the portion 32 is selected so that a circular cylindrical gap 33 in the basic position forms with a gap width of for example 1 mm to 10 mm, preferably 2 mm.
  • a gap width of for example 1 mm to 10 mm, preferably 2 mm.
  • Lamella elements 38 are arranged to mesh to form a plate pack.
  • a cross-sectionally T-shaped punch 39 is provided, the circular punch head 40 comes with an annular flange 41 at the outermost lamella element 37 and 38 of the disk set to rest.
  • a pressure plate 42 is fixed, on which the spring force of a formed in the manner of a plate spring package 43 spring element 43 acts.
  • the spring element 43 is biased between the pressure plate 42 and the sleeve body 29 mounted so that the of the lamellar elements 37; 38 formed disk set by the spring force from the punch 39 on the lamellar elements 37; 38 is jammed.
  • a pressure port 44 is provided in the base plate 28, through which a pressure chamber 46 between the pressure plate 42 and the base plate 28 with a pressure medium, such as compressed air can be applied.
  • a pressure medium such as compressed air
  • the adjustment of the contact pressure between the rollers 21 and 22 takes place, for example, in the following manner.
  • the pressure chamber 46 is subjected to a sufficient pressure, so that the lamellar elements 37; 38 are no longer frictionally clamped.
  • the actuators 34 are each acted upon with just enough pressure that the desired contact pressure between the rollers 21 and 22 or between the roller 21 and further, not shown in Fig. 1 rollers formed and leads to a contact strip of the desired width.
  • the pressure chamber 46 is depressurized, whereby the punch 39, the blade elements 37; 38 is clamped together, so that the roller holder 27 is fixed relative to the frame holder 26 in the desired position.
  • the actuators 34 are depressurized.
  • the preferably friction-locking fixing device may alternatively or additionally also have elements which engage positively in engagement.
  • Fig. 2 and Fig. 3 the operating principle of the device 20 is shown in the required adjusting movement in a schematic manner.
  • Fig. 2 shows the frame holder 26 with the recess 31 and the engaging portion 32 of the roller holder 27.
  • a gap 33 is formed, in which the in Fig. 2 and 3 are only schematically indicated by force arrows actuators 34 are arranged.
  • the possible adjusting movements between the frame holder 26 and the roll holder 27 are defined by a set plane which extends in the drawing of FIGS. 2 and 3 in the drawing plane, the setting range of the setting movements being limited by the width of the gap 33.
  • the roller holder 27 and, as a result, the roller 21 attached thereto can be displaced laterally relative to the frame holder 26, which is effected by a corresponding actuation of the actuators 34 and the resulting force action on the section 32.
  • the desired position of the roller holder 27 is found relative to the frame holder 26, the of the lamellar elements 37; 38 and the punch 39 and the pressure plate 42 formed Fixing device can be actuated so that the position is permanently fixed and the actuators 34 need not be driven further.
  • Fig. 4 the device 20 without roller holder 27 is shown in a perspective view.
  • the sleeve body 29 is fastened to the roll holder 27 (see FIG. 5) by means of four fastening screws 47.
  • the four z. B. arranged in the manner of pressure hoses 34 actuators 34, which can be acted upon by supply lines 48 with compressed air.
  • FIG. 5 shows the device 20 with the base plate 28, the frame holder 26, the roll holder 27, the quick release 24, the fastening screws 47 and the actuators 34 in a perspective view from the front.
  • FIG. 6 the section of an inking unit 51 with an adjustably mounted roller 52 and two frame-mounted rollers 53; 54 is shown.
  • the adjustably mounted roller 52 is mounted with a device 20 in the machine frame, as has been explained in FIGS. 1 to 5. This is indicated schematically in Fig. 6 by the air chambers 56 to 59 and 61.
  • the function of the pressure chambers 56 to 59 corresponds to the function of the pressure chambers 36 on the device 20. That is, by ventilation of the pressure chambers 56 to 59, the adjustably mounted roller 52 is pressed into the gap between the rollers 53 and 54 and out be moved out of the gap.
  • the function of the pressure chamber 61 corresponds to the function of the pressure chamber 46 on the device 20, so that by ventilation of the Pressure chamber 61, the adjustably mounted roller 52 can be fixed in position relative to the frame fixedly mounted rollers 53 and 54.
  • an air pressure is applied in each of the pressure chambers 56 and 57, which in effect acts as a setting force on the roller 52 in the desired size and direction.
  • the pressure chamber 61 is filled with compressed air, so as to solve the fixation of the roller 52.
  • the roller 52 is then pressed against the rollers 53 and 54.
  • the contact pressure in the roller strips 62 and 63 can be variably set independently.
  • the pressure chamber 61 is vented by depressurizing and thereby the adjustably mounted roller 52 is fixed relative to the rollers 53 and 54.
  • the contact pressure in the roller strips 62; 63 be remotely controlled.
  • the readjustment of the roller strips 62; 63 is possible even during production, because the color transfer is not interrupted.
  • only the pressure chamber 61 is vented to release the fixing and the pressure in the pressure chambers 56; 57 changed until the desired contact pressure on the roller strip 62; 63 result.
  • the fixation of the setting by venting the pressure chamber 61 is not mandatory. If the setting pressures in the pressure chambers 56 and 57 are maintained during production, the fixation by venting the pressure chamber 61 may be omitted.
  • the roller 52 is resiliently pressed in this case against the rollers 53 and 54 and can, for example, evade backwards in the event of imbalances and vibrations. However, if the roller 52 is not fixed, care must be taken that the vibrations occurring in the inking unit 51 do not exceed a permissible level.
  • the pressure chambers 56 and 57 are vented and the pressure chambers 58 and 59 vented.
  • the roller 52 is moved out of the gap between the rollers 53 and 54. If there is no longer any contact between the roller 52 and the rollers 53 and 54, the pressure chamber 61 is vented again and thereby fixed the roller 52 in the parked position. As a result, it becomes possible to turn off the roller 52 even during production without removing the roller 52.
  • the roller 52 can be turned off before adjusting the contact pressures by venting the pressure chambers 56 and 57 in the manner described first.
  • Fig. 7 illustrates an inking unit 66, with the ink from a roller 67, z. B. an anilox roller 67 on a cylinder 68, z. B. a form cylinder 68 is transferable.
  • an upper roller train 69 with two rollers 71; 72, z. B. two ink transfer rollers 71; 72 and a roller 73, z.
  • an inking roller 73 and a lower roller 74 with also two rollers 76 and 77, z. B. two ink transfer rollers 76 and 77 and an inking roller 78 is provided.
  • the ink transfer rollers 71; 72; 76; 77 and the inking rollers 73; 78 are in a frame 79 mounted adjustable. To adjust these rollers 71; 72; 76; 77, 73; 78 come z. B. devices for use, which correspond to the device 20 and in each case preferably four pressure chambers for adjusting the contact pressures or for the shutdown of the rollers 71; 72; 76; 77, 73; 78.
  • the contact pressures in the roller strips of the upper roller 69 and the lower roller 74 are adjusted one after the other. Ie. First, the fixation of the inking roller 73 is released and adjusted by aeration of the corresponding pressure chambers of the contact pressure in the roller strip to the anilox roller 67 and the forme cylinder 68. In parallel, the contact pressure between the inking roller 78 of the lower roller 74 and the anilox roller 67 and the forme cylinder 68 can be adjusted.
  • the inking rollers 73 and 78 After setting the inking rollers 73 and 78, these are fixed and then set the contact pressure between the ink transfer roller 72 and the inking roller 73 and the ink transfer roller 77 and the inking roller 78 by aeration of the corresponding pressure chambers. As soon as the ink transfer rollers 72 and 77 are fixed again, the ink transfer rollers 72 and 76 are finally adjusted by aeration of the pressure chambers, so that in the roller strip between the ink transfer rollers 71 and 76 on the one hand and the anilox roller 67 and the ink transfer rollers 72 and 77 on the other hand give desired contact pressures. Are the ink transfer rollers 71 and 76 fixed again, the entire inking unit 66 is completely adjusted.
  • rollers 71; 72; 76; 77, 73; 78 successively ensures that the setting of the rollers 71; 72; 76; 77, 73; 78 do not influence each other.
  • the adjustment of the individual rollers 71; 72; 76; 77, 73; 78 successively a relatively long response time.
  • the ink transfer rollers 71; 72; 76; 77 and the inking rollers 73; 78 all set at the same time. Ie. the pressure chambers on the individual ink transfer rollers 71; 72; 76; 77 or inking rollers 73; 78 are all simultaneously applied with appropriate air pressures. It should be noted, however, that the contact pressure between the individual rollers 71; 72; 76; 77, 73; 78 also on the preceding or behind in the roller train 69 and 74 arranged rollers 71; 72; 76; 77, 73; 78, so that the setting of the individual rollers 71; 72; 76; 77, 73; 78 influenced each other.
  • the result is a force difference, which is intercepted by adjusting the air pressure in the air combs 83 and 84, respectively must be that on the ink transfer roller 71 as a result, no resulting external force acts more.
  • the force applied by the pressure chamber 83 force vector 86, z. B. the adjustment force 86
  • the force applied by the pressure chamber 84 force vector 87, z. B. the adjustment force 87, vectorially applied. It can be seen that the force vectors 80; 81; 82; 86; 87 results in a closed flow of force and thus the effect on the ink transfer roller 71 no external force acts more.
  • This method assumes that at the beginning of the course of the process at least a part of the forces 81, 81 acting on the first roller 71; 82 are not yet real, but desired target values are because at least the contact forces 81; 82 are to be set by the proposed method to a desired value.
  • the resultant as a vector sum resultant 88 is thus a setpoint specification, the radial forces 89; 91 are set in vector addition.
  • the weight force 80 of the first roller 71 is preferably included in the vector sum to form the resultant 88 because its contribution in the vector sum is generally not negligible. If now only the weight 80 of the first roller 71 forms the resultant 88, because z. B. no contact forces on the first roller 71 act, the radial force 91; 97 of actuated actuators 83; 94 at least temporarily to an amount 86; 98 set that their vector sum during shutdown in terms of amount is greater than the resultant 88. This step is used to stop the first roller 71, ie the application of a force that causes the first roller 71 to move.
  • the actuators 83 are actuated; 84; 93; 94, the roller holder 27 in the frame holder 26, wherein the actuators 83; 84; 93; 94 the center of the roll holder 27 z. B. can move up to 15 mm eccentrically from the center of the frame age 26.
  • roller holder 27 in the frame holder 26 be eccentrically displaced so that the first roller 71 and the second roller 72 out of contact, said shift by the operation of only a single actuator 83; 84; 93; 94 may be caused, which is disposed between the roller holder 27 and the frame holder 26.
  • actuators 83; 84; 93; 94 move the roller holder 27 in the frame holder 26 and which the roller holder 27 in by the actuators 83; 84; 93; 94 returns unloaded operating state to a starting position.
  • the actuators 83; 84; 93; 94 actuated, the radial force 89; 91; 96; 97 a positive amount 86; 92; 98 against the resultant 88. It is advantageous if the roll holder 27 in the frame holder 26 z. Fixed in the manner described in connection with Figure 1, after the vector sum of the to the amount 86; 92; 98 set radial forces 89; 91; 97 of the resultant 88 corresponds.
  • B be characterized in that at least one radial force 89; 91 of actuated by a control signal actuators 83; 84 with a force acting on the first roller 71 force 80; 81; 82 is aligned.
  • Another special arrangement for the The aforementioned device 20 results when two actuated by a control signal actuators 83; 84 are arranged such that the amount 86; 92 of the radial force 89; 91 is set equal and a vector sum of these amounts 86; 92 counteracts a resultant 88, wherein the resultant 88 in the manner already mentioned as a vector sum of all acting on the first roller 71 forces 80; 81; 82 is formed.
  • the radial forces 89; 91 of the actuators 83; 84 an opening angle ⁇ with each other.
  • the radial forces 89; 91, the amounts of force 86; 92 apply, which are equal in magnitude in vector addition to the resultant 88.
  • the opening angle ⁇ between the radial forces 89; 91, by the actuators 83; 84 after their operation, that is exercised after their application with a pressure medium, is also found between the radial forces 89; 91 rectified force vectors 86; 92.
  • the angular position of the radial forces 89; 91 of the actuators 83; 84 to be chosen so that the radial force 89; 91 of two of the actuated by a control signal actuators 83; 84 is set so that each of these radial forces 89; 91 an amount 86; 92 of at least 30%, preferably 50%, in particular 70% of a counteracting resultant 88, wherein the resultant 88 in turn as a vector sum of all acting on the first roller 71 forces 80; 81; 82 is formed. Otherwise, one of the two actors involved has 83; 84 an excessively high proportion of force 86; 92, while the other would hardly be used.
  • Other advantageous settings for the opening angle ⁇ can be between 45 ° and 135 °, in particular at 90 ° and also at 120 °.
  • the opening angle ⁇ , the radial forces 89; 91 of the actuated actuators 83; 84 form with each other, is in many roller assemblies unequal to an opening angle ⁇ , which forms the force exerted by the first roller 71 on the second roller 72 contact force 82 with the force exerted by the first roller 71 on the third roller 67 contact pressure 81, wherein the opening angle ⁇ z , B. is between 30 ° and 180 °, but preferably between 60 ° and 120 °, in particular at about 90 °.
  • the actuators 83; 84; 93; 94 are formed in or on a wall of the frame holder 27, preferably as in or on a wall of the frame holder 26 or the roll holder 27 mounted, side-limited pressure chambers (see Fig .. 4), wherein the pressure chambers to a roller holder 27 when pressurized perform directed radial stroke, the z. B. may be up to 10 mm.
  • the frame holder 26 has connections for supply lines for the supply of pressure medium for the hollow bodies or pressure chambers (FIGS. 4 and 5). At least the frame holder 26 is advantageously rotationally symmetrical form, because then no special alignment to a frame wall 79 (Fig. 7) is to be considered during its assembly.
  • the pressure chambers can have a membrane, wherein at least one web formed on the frame holder 27 is formed between the pressure chambers (FIG. 4), to which the membrane can be connected.
  • an associated membrane is provided in the constructive Embodiment either covers a self-contained annular membrane all pressure chambers or for each pressure chamber.
  • the latter embodiment is shown in FIG. 4.
  • the membrane is preferably inserted into a groove introduced into the frame holder 27, glued or clamped.
  • three or four actuators 83; 84; 93; 94 or pressure chambers may be provided, which are arranged along the circumference of the roll holder 27 preferably equidistantly spaced.
  • FIG. 9 shows a similar arrangement to that of FIG. 8, but with the difference that according to the illustrated section of the inking unit two rollers 67; 71 are employed against each other.
  • An associated graph of force vectors 80; 81; 86; 88; 92 is drawn, after which the actuators 83; 84 the required forces 86; 92 apply.
  • the roller 71 is separated from its adjacent rollers 67; 72 completely turned off.
  • an associated diagram of the force vectors 80 illustrates; 86; 98 the effective force ratios, according to which to achieve this operating condition for the roller assembly acting with the roller 71 actuators 83; 94 are to be operated.
  • Fig. 11 shows a section of the inking unit with a against two rollers 67; 72 employed roller 71 and a representation of the radial forces 89; 91; 96; 97 of each offset by 90 ° to each other arranged actuators 83; 84; 93; 94.
  • the contact forces 81; 82 apply and to compensate for the employee applied roller 71 weight force 80.
  • actuators 83; 84; 93; 94 a displacement of the roller 71 in any direction in the plane of the plane, which here is equal to the plane of the drawing, can be made.
  • Some devices 20 for adjusting a pressing force 82 exerted by a first roller 71 on at least one second roller 72 in a printing machine and / or for turning on / off a first roller 71 on at least one second roller 72 do not all seem to like these illustrated actuators 83; 84; 93; 94, but only at least two actuators 83; 84, which in their actuated, ie pressure medium-loaded operating state, a radial directed into the first roller 71 force 89; 91 exert because in the opposite direction of the radial force 89; 91 z.
  • a preferably biased spring element is provided.
  • FIG. 12 A third embodiment of a roller arrangement is shown in FIG. 12. It relates to a device 20 for adjusting a contact pressure 81; 82, which apply a first roller 71 and a second roller 72 to at least one third roller 67 in a printing press, and / or for switching on / off a first roller 71 and at least one second roller 72 to a third roller 67, wherein for the first roller 71 and the second roller 72 actuators 83; 84; 93; 94 are provided, which in their actuated operating state, a radial force 89; 91; 96; 97 exercise, each in the standing in operative connection with them roller 71; 72 is directed.
  • This device 20 is characterized in that an opening angle ⁇ 1; ⁇ 2 between the two actuators 83; 84 on the same roller 71; 72 directed radial forces 89; 91 in the first roller 71 and the second roller 72 is the same.
  • the radial forces 89; 91; 96; 97 of actuated actuators 83; 84; 93; 94 each have an opening angle ⁇ 1; ⁇ 2 with each other, which is different from an opening angle ⁇ , which forms the force exerted by the first roller 71 on the third roller 67 pressing force 82 with the force exerted by the second roller 72 on the third roller 67 contact force 81.
  • the actuators 83; 84; 93; 94 its radial force 89; 91; 96; 97 actuated by a control signal exercise ie the actuators 83; 84; 93; 94 are z. B. actuated by one of the printing machine associated control station.
  • the opening angle ⁇ ; ⁇ 1; ⁇ 2, the radial forces 89; 91 of the actuated actuators 83; 84 form with each other, z. B. between 45 ° and 135 °, preferably between 90 ° and 120 °.
  • the opening angle ⁇ which the pressing force 82 exerted by the first roller 71 on the third roller 67 forms with the pressing force 81 exerted by the second roller 72 on the third roller 67 can be determined, for example, by B. between 30 ° and 180 °, preferably 60 ° to 120 °, in particular 90 °.
  • the first roller 71 and / or the second roller 72 may each be held in a roller holder 27, which in turn is mounted in a frame holder 26, wherein the actuators 83; 84; 93; 94 are preferably arranged between the frame holder 26 and the roll holder 27.
  • the frame holder 26 is advantageously formed as a housing in which the actuators 83; 84; 93; 94 are arranged (see Fig. 4 or 5), wherein the housing is formed at least half-shelled.
  • the actuators 83; 84; 93; 94 form as a pressurizable hollow body, the z. B.
  • the first roller 71 or the second roller 72 may be a roller of an inking unit or a dampening unit.
  • the inking unit 01 shown in FIG. 13 is used to apply ink to a cylinder 02, z. B. a forme cylinder 02, which in turn transmits the ink to a blanket cylinder 03.
  • a material web not shown in FIG. 13, z.
  • a paper web is carried out between the blanket cylinder 03 and a counter-pressure cylinder 04 and is printed by the contact with the blanket cylinder 03 with the desired print image.
  • a dampening unit 06 with a spray 07 and various rollers 08a; 08b; 08c; 08d, z. B. dampening rollers 08a; 08b; 08c; 08d provided.
  • a certain amount of a pasty ink 10 is stored.
  • the ink 10 can be nachge specialt in a suitable manner.
  • a color film of a certain thickness is from the ink fountain roller 11 to a downstream roller 13, z. B. Film roller 13 transferred.
  • the ink 10 is then applied to two rollers 18; 19, z. B. two inking rollers 18; 19 transmitted.
  • the inking rollers 18; 19 in turn roll on the forme cylinder 02 and thereby carry the nachge felicitte printing ink 10 on the forme cylinder 02.
  • the forme cylinder 02, the Farbreibwalzen 16; 17, the film roller 13 and the ink fountain roller 11 are all fixedly mounted in a machine frame, not shown in Fig. 13.
  • the ink rubbing rollers 16; 17 may of course be moved relative to the machine frame in the axial direction to rub the ink on the adjacent ink transfer rollers 14 and 15 and inking rollers 18 and 19, respectively.
  • the "solid" rollers are so achsabstandsunver selectedbar.
  • the ink transfer rollers 14 and 15 and inking rollers 18 and 19 are each mounted with two devices 20 on the opposite sides of the machine frame, so that between the rollers 16; 17; 13 or the cylinder 02 in the roller train of the inking unit 01 by actuation of these devices 20, an adjustment of the ink transfer rollers 14 and 15 and inking rollers 18 and 19 is possible.
  • the contact pressure in the roll strip between the ink transfer rollers 14 and 15 and inking rollers 18 and19 on the one hand and the forme cylinder 02, the Farbreibwalzen 16; 17 and the film roller 13 and the ink fountain roller 11 on the other hand can each be set sequentially.
  • the setting of the inking unit 01 can be realized particularly quickly by adjusting the contact pressure in the roller strips at the same time everywhere.
  • the devices 20 in which the ink transfer rollers 14 and 15 and inking rollers 18 and 19 are mounted operated substantially simultaneously.
  • An influence of the contact pressure in the individual roller strips is also the simultaneous operation of all devices 20 excluded, since between the adjustably mounted ink transfer rollers 14 and 15 and inking rollers 18 and 19 are each a frame-mounted roller 16 and 17, namely the Farbreibwalze 16 and 17, respectively.
  • dampening unit 06 Also on dampening unit 06 are adjustable with devices 20 mounted dampening rollers 08a and 08c between the frame-mounted dampening rollers 08b and 08d and the frame-mounted form cylinder 02 are arranged.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Rotary Presses (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Printing Methods (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)

Claims (15)

  1. Dispositif de réglage d'une force de pressage (81; 82) exercée par un premier rouleau (08a; 08c; 14; 15; 18; 19; 52; 71: 73; 76; 78) au moins sur un deuxième arbre (08b; 16; 17; 54; 72; 77) dans une machine à imprimer et pour appliquer/dégager un premier rouleau (08a; 08c; 14; 15; 18; 19; 52; 71: 73; 76; 78) sur, respectivement d'au moins un deuxième rouleau (08b; 16; 17; 54; 72; 77), où, pour le premier rouleau (08a; 08c; 14; 15; 18; 19; 52; 71: 73; 76; 78) sont prévus au moins deux acteurs (83; 84) exerçant, à leur état de fonctionnement actionné, une force (89; 91) radiale orientée vers le premier rouleau (08a; 08c; 14; 15; 18; 19; 52; 71: 73; 76; 78), sachant que, en sens inverse de la force radiale (89; 91), est prévu un élément élastique, caractérisé en ce que les acteurs (83; 84) sont chacun réalisés sous forme de corps creux actionnables pneumatiquement, une somme vectorielle des efforts radiaux (89; 91), orientés sur le premier rouleau (08a; 08c; 14; 15; 18; 19; 52; 71: 73; 76; 78), des acteurs (83; 84) actionnés simultanément, exerçant la force de pressage (81; 82) sur le deuxième rouleau (08b; 16; 17; 54; 72; 77), une pression, appliquée dans le corps creux, étant réglable à une valeur modifiable.
  2. Dispositif selon la revendication 1, caractérisé en ce que les acteurs (83; 84) exercent une force radiale (89; 91) en étant actionnés par un signal de commande.
  3. Dispositif selon l'une des revendications précédentes, caractérisé en ce que chaque acteur (83; 84) actionné contribue, par sa force radiale (89; 91), simultanément au réglage de la force de pressage (81; 82) et au placage d'au moins un premier rouleau (08a; 08c; 14; 15; 18; 19; 52; 71: 73; 76; 78).
  4. Dispositif selon la revendication 1, caractérisé en ce que les efforts radiaux (89; 91) des acteurs (83; 84) actionnés forment ensemble un angle d'ouverture (α; α1; α2).
  5. Dispositif selon la revendication 4, caractérisé en ce que l'angle d'ouverture (α; α1; α2), que forment ensemble les efforts radiaux (89; 91) des acteurs (83; 84) actionnés, est compris dans la fourchette entre 45° et 135°.
  6. Dispositif selon la revendication 1, caractérisé en ce que le premier rouleau (08a; 08c; 14; 15; 18; 19; 52; 71: 73; 76; 78) est maintenu dans un support de rouleau (27) monté en palier de son côté dans un support de cadre (26).
  7. Dispositif selon la revendication 6, caractérisé en ce que les acteurs (83; 84) sont disposés entre le support de cadre (26) et le support de rouleau (27).
  8. Dispositif selon la revendication 6, caractérisé en ce que l'élément élastique est disposé entre le support de cadre (26) et le support de rouleau (27).
  9. Dispositif selon la revendication 6, caractérisé en ce que le support de cadre (26) est réalisé sous forme de boîtier, dans lequel sont disposés les acteurs (83; 84).
  10. Dispositif selon la revendication 9, caractérisé en ce que le boîtier est réalisé au moins en demi-coquilles.
  11. Dispositif selon la revendication 1, caractérisé en ce que le corps creux est réalisé sans tige de piston.
  12. Dispositif selon la revendication 1, caractérisé en ce que le corps creux est réalisé au moins partiellement en un matériau élastomère.
  13. Dispositif selon l'une des revendications précédentes, caractérisé en ce que le premier rouleau (08a; 15; 18; 71) ou le deuxième rouleau (08c; 14; 19; 72) est un rouleau d'un groupe d'encrage ou d'un groupe d'humidification.
  14. Dispositif selon l'une des revendications précédentes, caractérisé en ce que qu'au moins l'un des rouleaux (08a; 08c; 14; 15; 18; 19; 71; 72) réglables, respectivement susceptibles d'être appliqués/dégagés, est un rouleau coopérant avec un cylindre de forme (02).
  15. Dispositif selon l'une des revendications précédentes, caractérisé en ce que tous les rouleaux (08a; 18; 19; 71; 72) coopérant avec un cylindre de forme (02) sont susceptibles d'être réglés, respectivement d'être appliqués/dégagés.
EP02804558A 2001-12-06 2002-09-21 Dispositifs de reglage de rouleaux dans une machine a imprimer Expired - Lifetime EP1461208B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE10244044A DE10244044B4 (de) 2001-12-06 2002-09-21 Verfahren zum Betrieb eines Farbwerkes oder Feuchtwerkes in einer Druckmaschine
EP04102477A EP1468824B1 (fr) 2001-12-06 2002-09-21 Dispositif pour régler des cylindres dans une machine à impression

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10160044 2001-12-06
DE10160044 2001-12-06
PCT/DE2002/003573 WO2003049948A2 (fr) 2001-12-06 2002-09-21 Dispositifs de reglage de rouleaux dans une machine a imprimer

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP04102477A Division EP1468824B1 (fr) 2001-12-06 2002-09-21 Dispositif pour régler des cylindres dans une machine à impression

Publications (2)

Publication Number Publication Date
EP1461208A2 EP1461208A2 (fr) 2004-09-29
EP1461208B1 true EP1461208B1 (fr) 2006-03-01

Family

ID=7708315

Family Applications (5)

Application Number Title Priority Date Filing Date
EP04102481A Withdrawn EP1459889A3 (fr) 2001-12-06 2002-09-21 Procédé pour la mise en oeuvre d'un dispositif d'encrage ou d'un dispositif de mouillage dans une machine à imprimer
EP02781108A Expired - Lifetime EP1465771B1 (fr) 2001-12-06 2002-09-21 Procedes et dispositifs permettant de regler au moins un rouleau dans une machine a imprimer et/ou de le placer/retirer
EP02804557A Expired - Lifetime EP1461207B1 (fr) 2001-12-06 2002-09-21 Procede pour faire fonctionner un dispositif d'encrage ou un dispositif de mouillage dans une machine a imprimer
EP02804558A Expired - Lifetime EP1461208B1 (fr) 2001-12-06 2002-09-21 Dispositifs de reglage de rouleaux dans une machine a imprimer
EP04102477A Expired - Lifetime EP1468824B1 (fr) 2001-12-06 2002-09-21 Dispositif pour régler des cylindres dans une machine à impression

Family Applications Before (3)

Application Number Title Priority Date Filing Date
EP04102481A Withdrawn EP1459889A3 (fr) 2001-12-06 2002-09-21 Procédé pour la mise en oeuvre d'un dispositif d'encrage ou d'un dispositif de mouillage dans une machine à imprimer
EP02781108A Expired - Lifetime EP1465771B1 (fr) 2001-12-06 2002-09-21 Procedes et dispositifs permettant de regler au moins un rouleau dans une machine a imprimer et/ou de le placer/retirer
EP02804557A Expired - Lifetime EP1461207B1 (fr) 2001-12-06 2002-09-21 Procede pour faire fonctionner un dispositif d'encrage ou un dispositif de mouillage dans une machine a imprimer

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP04102477A Expired - Lifetime EP1468824B1 (fr) 2001-12-06 2002-09-21 Dispositif pour régler des cylindres dans une machine à impression

Country Status (9)

Country Link
US (2) US7124683B2 (fr)
EP (5) EP1459889A3 (fr)
JP (1) JP4068063B2 (fr)
CN (2) CN100509390C (fr)
AT (4) ATE435115T1 (fr)
AU (3) AU2002366535A1 (fr)
DE (7) DE50213302D1 (fr)
ES (1) ES2257599T3 (fr)
WO (3) WO2003049946A2 (fr)

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DE10152020C2 (de) 2001-03-20 2003-05-08 Koenig & Bauer Ag Vorrichtung zum Einstellen des Anpressdrucks einer verstellbar gelagerten Walze

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DE50208517D1 (de) 2006-11-30
EP1461207B1 (fr) 2006-10-18
DE50205974D1 (de) 2006-04-27
EP1465771A2 (fr) 2004-10-13
JP2005511357A (ja) 2005-04-28
DE10244044B4 (de) 2005-10-06
DE10244042B4 (de) 2007-02-01
DE50213302D1 (de) 2009-04-02
AU2002349270A8 (en) 2003-06-23
CN1982055A (zh) 2007-06-20
ATE318707T1 (de) 2006-03-15
EP1468824B1 (fr) 2009-07-01
EP1461208A2 (fr) 2004-09-29
WO2003049946B1 (fr) 2003-12-11
JP4068063B2 (ja) 2008-03-26
WO2003049947A3 (fr) 2003-10-09
WO2003049946A3 (fr) 2003-10-30
AU2002366535A8 (en) 2003-06-23
EP1461207A2 (fr) 2004-09-29
US20050223924A1 (en) 2005-10-13
WO2003049947A2 (fr) 2003-06-19
EP1465771B1 (fr) 2009-02-18
EP1468824A3 (fr) 2006-04-12
CN100509390C (zh) 2009-07-08
EP1459889A3 (fr) 2006-04-12
CN1330481C (zh) 2007-08-08
DE10244043A1 (de) 2003-06-26
ATE423001T1 (de) 2009-03-15
AU2002366534A1 (en) 2003-06-23
DE10244043B4 (de) 2005-07-21
WO2003049946A2 (fr) 2003-06-19
ES2257599T3 (es) 2006-08-01
CN1617799A (zh) 2005-05-18
AU2002366534A8 (en) 2003-06-23
AU2002366535A1 (en) 2003-06-23
ATE435115T1 (de) 2009-07-15
WO2003049948A3 (fr) 2003-12-11
AU2002349270A1 (en) 2003-06-23
DE10244042A1 (de) 2003-06-26
WO2003049948A2 (fr) 2003-06-19
EP1468824A2 (fr) 2004-10-20
EP1459889A2 (fr) 2004-09-22
ATE342801T1 (de) 2006-11-15
DE10244044A1 (de) 2003-06-26
DE50213656D1 (de) 2009-08-13
US20050076800A1 (en) 2005-04-14
US7124683B2 (en) 2006-10-24
US7117792B2 (en) 2006-10-10

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