EP1465771B1 - Method and devices for regulating at least one cylinder in a printing machine and/or placing/removing said cylinders - Google Patents
Method and devices for regulating at least one cylinder in a printing machine and/or placing/removing said cylinders Download PDFInfo
- Publication number
- EP1465771B1 EP1465771B1 EP02781108A EP02781108A EP1465771B1 EP 1465771 B1 EP1465771 B1 EP 1465771B1 EP 02781108 A EP02781108 A EP 02781108A EP 02781108 A EP02781108 A EP 02781108A EP 1465771 B1 EP1465771 B1 EP 1465771B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- roller
- retaining means
- actuators
- actuated
- force
- 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
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- 230000001105 regulatory effect Effects 0.000 title 1
- 239000013598 vector Substances 0.000 claims description 49
- 238000003825 pressing Methods 0.000 claims description 17
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- 230000007246 mechanism Effects 0.000 description 7
- 238000007774 anilox coating Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000002655 kraft paper Substances 0.000 description 5
- 239000012528 membrane Substances 0.000 description 5
- 238000013022 venting Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
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- 230000000694 effects Effects 0.000 description 2
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- 238000009423 ventilation Methods 0.000 description 2
- 241000446313 Lamella Species 0.000 description 1
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- 238000000429 assembly Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
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Images
Classifications
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- 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 methods and devices for adjusting a pressing force exerted by at least one roller on another roller in a printing machine and / or for switching on / off at least one of these rollers according to the preamble of claim 1, 2, 9 or 12 ,
- 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 fixed frame mounted cylinder known, the color is transmitted 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 storage the applicator roll is designed so that the force with which the applicator roll is pressed into the gap between the forme cylinder and the distributor roll, always acts along an angle bisector between the distributor roll and the forme cylinder. 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.
- 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 bushes for printing and forme cylinder bearings of a printing machine comprising a hydraulic pressing of the bearing bushes against the bore wall of the machine frame, wherein the bearing bushes consist of two shrunken bushing sleeves, wherein in the inner wall of the outer sleeve sleeve two hydraulically acted upon pressure chambers are incorporated, which lie on 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, in particular for friction and application rollers of inking units on printing machines, wherein adjusting means are provided for adjusting the roller transversely to its axis, wherein the adjusting means between a bearing wall connected to the bearing wall and a roller end receiving, preferably cup-shaped housing are mounted, wherein the bearing pin and the Housing are connected by the adjusting means counteracting spring elements.
- the spring elements are preferably designed as a radially extending rubber buffer and acting on the bearing adjustment means either as a radially arranged adjusting screw or as two arranged at 45 ° 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.
- a device for adjusting the contact pressure between rollers in a printing machine wherein between adjacent rollers hydraulic, preferably designed as a double-piston cylinder control elements are arranged.
- EP 0 958 918 A1 are known an apparatus and a method for semi-automatic setting of rolls, wherein an adjustable first roller is employed against at least one frame-fixed second roller, wherein resilient means act on the first roller in the direction of the second roller with a resilient force.
- 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 connected to a arranged in the pivot lever and movable in the longitudinal direction of pressure medium beaufschlagbaren piston, wherein the applicator roll hangs on its pressurizing agent of this piston to the inking roller or is turned off by her.
- the pivot lever is arranged by another in a cylinder arranged druckstoffbeetzschlagbaren piston pivotable, wherein this piston pivots the pivot lever to the inking roller during its pressure medium application and thereby hires the applicator roll to 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.
- the invention has for its object to provide methods and apparatus for adjusting a force exerted by at least one roller on another roller in a printing machine contact pressure and / or for switching on / off of at least one of these rollers.
- 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 can 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 into the gap between the other two rollers after starting the functional position of the lever mechanism, in which the adjustably mounted roller comes to rest on the two other rollers. This adjustment is then fixed by actuating a fixing device between the adjustably mounted roller and the lever mechanism. Should later the Color or dampening are turned off, the lever mechanism is pivoted to the first functional position in which the adjustable roller is lifted from the one roller.
- 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 a in Fig. 1 not shown above Bearing shell then the axis 23 can be fixed to the quick release 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.
- fin elements 37 are fastened to the roll holder 27, which are arranged with meshing elements attached to the sleeve body 29 to form a lamellar package 38.
- a cross-sectionally T-shaped punch 39 is provided, the circular punch head 40 comes with an annular flange 41 at the outermost lamellar 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 disc 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, in Fig. 1 not shown forms rollers 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 is the principle of action of the device 20 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 FIGS. 2 and 3 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 by a set plane, which in the representation of FIGS. 2 and 3 extends in the plane of the drawing, defined, wherein the adjustment range of the adjusting movements by the width of the gap 33 is limited.
- 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 consequent force action on the section 32.
- the desired position of 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 are 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 by means of four fastening screws 47 on the roll holder 27 (see Fig. 5 ) attached.
- 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. It can be seen the extremely compact design of the device 20, which has a smaller diameter than the roller 21 itself (see Fig.) Due to their overall rotationally symmetrical design (apart from the base plate 28) Fig. 1 ).
- Fig. 6 is the detail of an inking unit 51 with an adjustably mounted roller 52 and two rollers fixed to the frame 53; 54 is shown.
- the adjustably mounted roller 52 is mounted with a device 20 in the machine frame, as in the Fig. 1 to 5 was explained.
- This is in Fig. 6 indicated schematically 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 the gap be moved out.
- the function of the pressure chamber 61 corresponds to the function of the pressure chamber 46 on the device 20, so that by loading and venting 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, during production, the set pressures in the pressure chambers 56 and 57, 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 escape, for example, in case of imbalances and vibrations to the rear. 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 represents 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.
- 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 mounted adjustable in a frame 79. 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 roll 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.
- Fig. 8 For example, such an addition of the force vectors is exemplified for the ink transfer roller 71.
- the ink transfer roller 71 act in addition to the z. B. force force vector 80 formed by the force of the force vector 81 and 82, the z. B. correspond to the force acting in the roller strip contact forces 81 and 82, which result at predetermined contact pressures of the ink transfer roller 71 to the anilox roller 67 and the ink transfer roller 72.
- the weight 80 and the Compressive forces 81 and 82 vectorially added resulting in a force difference, which must be intercepted by adjusting the air pressure in the air chambers 83 and 84 such that acting on the ink transfer roller 71 as a result no resulting external force more.
- Fig. 8 is the force applied by the pressure chamber 83 force vector 86, z. B. the adjustment force 86, and the force applied by the pressure chamber 84 force vector 87, z. B. the adjustment force 87, vectorially applied.
- 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.
- the adjustably mounted rollers 71; 72; 76; 77, 73; 78 must while simultaneously setting the contact pressure for all rollers 71; 72; 76; 77, 73; 78 such a closed power flow are set up in order to take into account the influence of different force sizes with each other.
- 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.
- the roller holder 27 may be eccentrically displaceable in the frame holder 26, 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.
- a single actuator 83; 84; 93; 94 may be caused, which is disposed between the roller holder 27 and the frame holder 26.
- at least one spring element may be provided, against which the 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. B. in connection with the Fig. 1 described manner, after the vector sum of the on 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.
- a further special arrangement for 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.
- radial forces 89; 91 of the actuators 83; 84 an opening angle a 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 not equal to an opening angle ⁇ , which forms the force exerted by the first roller 71 on the second roller 72 pressing 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, and preferably as in or on a wall of the frame holder 26 or the roller holder 27 mounted, side-limited pressure chambers (see. Fig. 4 ), wherein the pressure chambers perform a pressurized to a roll holder 27 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 ( Fig. 4 and 5 ). At least the frame holder 26 is advantageously rotationally symmetrical form, because then during its assembly no special alignment to a frame wall 79 (FIG. Fig. 7 ).
- the pressure chambers may 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 may be connected.
- a self-contained annular membrane covers all the pressure chambers or for each pressure chamber, an associated membrane is provided. The latter version is in the Fig. 4 shown.
- 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.
- the Fig. 9 shows a similar arrangement as the Fig. 8 , but with the difference that here 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.
- the 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 switching on / off a first roller 71 to or from at least one second roller 72 may not all of 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.
- a third embodiment of a roller assembly is in the Fig. 12 shown. 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 a ⁇ ftnungswinkel ⁇ 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 .beta The opening angle .beta.
- 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.
- This in Fig. 13 shown inking 01 is the order of ink on a cylinder 02, z. B. a forme cylinder 02, which in turn transmits the ink to a blanket cylinder 03.
- 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 in a suitable manner be funded.
- 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 1 are all firmly in one in Fig. 13 not shown machine frame stored.
- This means for the purposes of this invention that the set pressure between the individual rollers 16; 17; 13 or the cylinder 02 not by adjusting these rollers 16; 17; 13 or cylinders 02 is variable.
- 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.
- An influencing of the contact pressure in the individual roller strips is excluded even with simultaneous operation of all devices 20, as between the adjustably mounted ink transfer rollers 14 and 15 and inking rollers 18 , thereby the Farbreibwalze 16 and 17, is arranged.
- 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.
Abstract
Description
Die Erfindung betrifft Verfahren und Vorrichtungen zum Einstellen einer von mindestens einer Walze auf eine andere Walze in einer Druckmaschine ausgeübten Anpresskraft und/oder zum An-/Abstellen an bzw. von mindestens einer dieser Walzen gemäß dem Oberbegriff des Anspruches 1, 2, 9 oder 12.The invention relates to methods and devices for adjusting a pressing force exerted by at least one roller on another roller in a printing machine and / or for switching on / off at least one of these rollers according to the preamble of
Farbwerke bzw. Feuchtwerke in Druckmaschinen werden dazu eingesetzt, die für den Druckvorgang erforderliche Farbe bzw. das erforderliche Feuchtmittel aus entsprechenden Versorgungseinrichtungen in die Druckzone zu fördern. Zur Bildung des dabei erforderlichen Farbfilms bzw. Feuchtmittelfilms werden Walzen bzw. Zylinder im Farbwerk bzw. Feuchtwerk vorgesehen. Die Begriffe Walze und Zylinder haben für das Verständnis der vorliegenden Erfindung einen gleichbedeutenden Sinngehalt. Die Walzen kommen in sogenannten Walzenstreifen aneinander zur Anlage, so dass der Farbfilm bzw. der Feuchtmittelfilm in den Walzenstreifen von einer Walze auf eine andere Walze übertragen werden kann.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. To form the required color film or dampening film rolls or cylinders are provided in the inking unit or dampening unit. The terms 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.
In solchen Farbwerken bzw. Feuchtwerken sind im Maschinengestell verstellbar gelagerte Walzen vorgesehen, so dass durch Verstellung dieser verstellbar gelagerten Walzen relativ zu den anderen Walzen der Anpressdruck in den Walzenstreifen verändert werden kann. Aus der
Durch die Patentschrift
Die Patentschrift
Durch die
Durch die
Durch die
Der Erfindung liegt die Aufgabe zugrunde, Verfahren und Vorrichtungen zum Einstellen einer von mindestens einer Walze auf eine andere Walze in einer Druckmaschine ausgeübten Anpresskraft und/oder zum An-/Abstellen an bzw. von mindestens einer dieser Walzen zu schaffen.The invention has for its object to provide methods and apparatus for adjusting a force exerted by at least one roller on another roller in a printing machine contact pressure and / or for switching on / off of at least one of these rollers.
Die Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruches 1, 2, 9 oder 12 gelöst.The object is achieved by the features of
Die mit der Erfindung erzielbaren Vorteile bestehen insbesondere darin, dass bei der Einstellung des Anpressdruckes zwischen der verstellbaren Walze und den daran anliegenden Walzen nicht nur die Kraftgröße variiert wird, sondern auch die Kraftrichtung. Dadurch ist es möglich, dass die Anpressdrücke in den beiden Walzenstreifen letztlich unabhängig voneinander eingestellt werden können.The achievable with the invention advantages are in particular that when adjusting the contact pressure between the adjustable roller and the adjacent rollers not only the force size is varied, but also the direction of force. This makes it possible that the contact pressures in the two roller strips can be adjusted independently of each other ultimately.
Besondere Vorteile im Hinblick auf die Stillstandszeiten beim Einstellen des Farbwerkes bzw. Feuchtwerkes ergeben sich, wenn der Einpressdruck in den Walzenstreifen nicht schrittweise nacheinander eingestellt wird, sondern im Wesentlichen gleichzeitig. Das heißt beim Einstellen der Kraft, mit der die verstellbar gelagerte Walze gegen die anderen Walzen gedrückt wird, dass die Kraftgröße und die Kraftrichtung solange variiert werden kann, bis sich in allen Walzenstreifen die jeweils gewünschten Anpressdrücke ergeben.Particular advantages in terms of downtime when setting the inking unit or dampening unit arise when the press-in pressure in the roller strip is not set step by step, but substantially simultaneously. That is, when adjusting the force with which the adjustably mounted roller is pressed against the other rollers, that the force magnitude and the direction of force can be varied until the respective desired contact pressures result in all roller strips.
Um eine ungewollte Verstellung der Anpressdrücke zu vermeiden, ist es vorteilhaft, wenn die Position der verstellbar gelagerten Walze nach Einstellung des Anpressdruckes gegenüber den beiden anderen Walzen durch Betätigung einer Fixiereinrichtung fixiert wird. Kann die Größe und Richtung der Kraft zur Verstellung der verstellbar gelagerten Walze im Wesentlichen frei gewählt werden, kann dies auch zur Abstellung der Farbe oder des Feuchtmittels genutzt werden. Für diese Anwendungsfälle wird die Kraft zur Verstellung der verstellbar gelagerten Walze in einer Richtung gewählt, die von den beiden anderen Walzen wegweist. Im Ergebnis kann so die verstellbar gelagerte Walze soweit aus dem Spalt herausgefahren werden, bis kein Kontakt mehr zwischen der verstellbar gelagerten Walze und den anderen Walzen besteht. Sobald die verstellbar gelagerte Walze von den anderen Walzen getrennt ist, wird dann kein Feuchtmittel bzw. keine Farbe mehr in den Walzenstreifen übertragen.In order to avoid an unintentional adjustment of the contact pressure, it is advantageous if 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.
Alternativ dazu kann die verstellbar gelagerte Walze auch auf einem um die Rotationsachse einer der anderen Walzen schwenkbaren Hebelwerk angeordnet sein. Zum Abstellen der Farbe bzw. des Feuchtmittels kann dann die Walze durch Antrieb des Hebelwerkes von einer der anderen Walzen abgehoben werden. Die verstellbar gelagerte Walze kann nach Anfahren der Funktionsstellung des Hebelwerkes, in der die verstellbar gelagerte Walze an den beiden anderen Walzen zur Anlage kommt, mit einer in Größe und Richtung verstellbaren Kraft in den Spalt zwischen die beiden anderen Walzen gedrückt werden. Diese Einstellung wird dann durch Betätigung einer Fixiereinrichtung zwischen der verstellbar gelagerten Walze und dem Hebelwerk fixiert. Soll später die Farbe bzw. das Feuchtmittel abgestellt werden, wird das Hebelwerk in die erste Funktionsstellung geschwenkt, in der die verstellbar gelagerte Walze von der einen Walze abgehoben ist. Beim Anstellen der Farbe bzw. des Feuchtmittels reicht dann ein Zurückschwenken des Hebelwerkes in die zweite Funktionsstellung ohne zusätzliche Einstellung der Anpressdrücke aus, da die richtige Einstellung durch die Fixiereinrichtung zwischen Hebelwerk und verstellbar gelagerter Walze fixiert ist.Alternatively, the adjustably mounted roller can also be arranged on a lever mechanism pivotable about the axis of rotation of one of the other rollers. To stop the color or dampening solution then 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 into the gap between the other two rollers after starting the functional position of the lever mechanism, in which the adjustably mounted roller comes to rest on the two other rollers. This adjustment is then fixed by actuating a fixing device between the adjustably mounted roller and the lever mechanism. Should later the Color or dampening are turned off, the lever mechanism is pivoted to the first functional position in which the adjustable roller is lifted from the one roller. 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.
Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und werden im Folgenden näher beschrieben.Embodiments of the invention are illustrated in the drawings and will be described in more detail below.
Es zeigen:
- Fig. 1
- eine schematisch dargestellte Vorrichtung zum Einstellen des Anpressdrucks zwischen zwei Walzen im Längsschnitt;
- Fig. 2
- die schematisch im Querschnitt dargestellte Vorrichtung gemäß
Fig. 1 in einer Grundstellung; - Fig. 3
- die schematisch im Querschnitt dargestellte Vorrichtung gemäß
Fig. 1 in einer ausgelenkten Stellung; - Fig. 4
- die Vorrichtung gemäß
Fig. 1 in einer perspektivischen Ansicht ohne Walzenhalter; - Fig. 5
- die Vorrichtung gemäß
Fig. 1 in einer perspektivischen Ansicht mit Walzenhalter; - Fig. 6
- einen Ausschnitt aus einem Farbwerk in schematisch dargestellter seitlicher Ansicht;
- Fig. 7
- ein zweites Ausführungsbeispiel eines Farbwerks in schematisch dargestellter seitlicher Ansicht;
- Fig. 8
- einen Ausschnitt aus dem Farbwerk gemäß
Fig. 7 in schematisch dargestellter seitlicher Ansicht mit einer gegen zwei Walzen angestellten Walze und einem dazugehörigen Diagramm der Kraftvektoren; - Fig. 9
- einen Ausschnitt aus dem Farbwerk mit zwei gegeneinander angestellten Walzen und einem dazugehörigen Diagramm der Kraftvektoren;
- Fig. 10
- einen Ausschnitt aus dem Farbwerk mit einer abgestellten Walze und einem dazugehörigen Diagramm der Kraftvektoren;
- Fig. 11
- einen Ausschnitt aus dem Farbwerk mit einer gegen zwei Walzen angestellten Walze und einer Darstellung der radialen Kräfte der Aktoren;
- Fig. 12
- ein drittes Ausführungsbeispiel einer Walzenanordnung mit zwei unabhängig gegen eine dritte Walze anstellbaren und angestellten Walzen;
- Fig. 13
- ein viertes Ausführungsbeispiel eines Farbwerks in schematisch dargestellter seitlicher Ansicht.
- Fig. 1
- a schematically illustrated device for adjusting the contact pressure between two rollers in longitudinal section;
- Fig. 2
- the device shown schematically in cross section according to
Fig. 1 in a basic position; - Fig. 3
- the device shown schematically in cross section according to
Fig. 1 in a deflected position; - Fig. 4
- the device according to
Fig. 1 in a perspective view without roll holder; - Fig. 5
- the device according to
Fig. 1 in a perspective view with roll holder; - Fig. 6
- a section of an inking in schematically illustrated side view;
- Fig. 7
- a second embodiment of an inking in schematically illustrated side view;
- Fig. 8
- a section of the inking according to
Fig. 7 in a schematically illustrated side view with an employee against two rollers roller and an associated diagram of the force vectors; - Fig. 9
- a section of the inking unit with two opposing rollers and an associated diagram of the force vectors;
- Fig. 10
- a section of the inking unit with a parked roller and an associated diagram of the force vectors;
- Fig. 11
- a section of the inking unit with a staff employed against two rollers and a representation of the radial forces of the actuators;
- Fig. 12
- a third embodiment of a roller assembly with two independently engageable against a third roller and employees rolls;
- Fig. 13
- A fourth embodiment of an inking in schematically illustrated side view.
In
Die Vorrichtung 20 ist im Wesentlichen aus einem Rahmenhalter 26 und einem Walzenhalter 27 aufgebaut, die relativ zueinander in einer Stellebene, die sich senkrecht zur Zeichenebene erstreckt, gegeneinander verschoben werden können. Der Rahmenhalter 26 ist aus einer Grundplatte 28, die beispielsweise mittels eines Schwenkarms schwenkbar an dem Gestell einer Druckmaschine befestigt werden kann, und einem Hülsenkörper 29 aufgebaut. Auf der zur Walze 21 weisenden Seite weist der Hülsenkörper 29 eine Ausnehmung 31 auf, in die ein zylinderförmiger Abschnitt 32 des Walzenhalters 27 eingreift. Der Innendurchmesser der Ausnehmung 31 bzw. der Außendurchmesser des Abschnitts 32 ist dabei so gewählt, dass sich ein in der Grundstellung kreiszylindrischer Spalt 33 mit einer Spaltbreite von beispielsweise 1 mm bis 10 mm, vorzugsweise 2 mm bildet. Durch den Spalt 33 wird der maximale Stellbereich zur Verstellung des Walzenhalters 27 relativ zum Rahmenhalter 26 definiert.The
Um die bei der Einstellung der Walze 21 erforderlichen Stellbewegungen realisieren zu können bzw. den gewünschten Anpressdruck zwischen der Walze 21 und der Walze 22 aufbringen zu können, sind im Spalt 33 über den Umfang verteilt vorzugsweise insgesamt vier z. B. in der Art von Druckschläuchen 34 ausgebildete Aktoren 34, von denen in
Zur Fixierung des Walzenhalters 27 relativ zum Rahmenhalter 26 sind am Walzenhalter 27 Lamellenelemente 37 befestigt, die mit am Hülsenkörper 29 befestigten Lamellenelementen 38 unter Bildung eines Lamellenpakets kämmend angeordnet sind. Zur vorzugsweise reibschlüssigen Beklemmung des aus den Lamellenelementen 37; 38 gebildeten Lamellenpakets ist ein im Querschnitt T-förmiger Stempel 39 vorgesehen, dessen kreisförmiger Stempelkopf 40 mit einem kreisringförmigen Flansch 41 am äußersten Lamellenelement 37 bzw. 38 des Lamellenpakets zur Anlage kommt. Am gegenüberliegenden Ende des Stempels 39 ist eine Druckplatte 42 befestigt, auf die die Federkraft eines in der Art eines Tellerfederpakets 43 ausgebildeten Federelements 43 wirkt. Das Federelement 43 wird vorgespannt zwischen die Druckplatte 42 und den Hülsenkörper 29 montiert, so dass das von den Lamellenelementen 37; 38 gebildete Lamellenpaket durch die Federkraft, die vom Stempel 39 auf die Lamellenelemente 37; 38 übertragen wird, beklemmt wird.To fix the
Zur Verstellung des Walzenhalters 27 relativ zum Rahmenhalter 26, insbesondere beim Einstellen des Anpressdruckes zwischen den Walzen 21 und 22, muss die von den Lamellenelementen 37; 38 bzw. dem Stempel 39 und der Druckplatte 42 gebildete Fixiereinrichtung gelöst werden. Dazu ist in der Grundplatte 28 ein Druckanschluss 44 vorgesehen, durch den eine Druckkammer 46 zwischen der Druckplatte 42 und der Grundplatte 28 mit einem Druckmedium, beispielsweise Druckluft beaufschlagt werden kann. Sobald der auf die Druckplatte 42 wirkende Luftdruck die Federkraft des Federelements 43 übersteigt, wird der Stempel 39 soweit vom äußersten Lamellenelement 37 bzw. 38 abgehoben, dass diese nicht mehr reibschlüssig beklemmt sind und relativ gegeneinander verschoben werden können.To adjust the
Die Einstellung des Anpressdrucks zwischen den Walzen 21 und 22 erfolgt beispielsweise in folgender Weise.The adjustment of the contact pressure between the
Zunächst wird die Druckkammer 46 mit einem ausreichenden Druck beaufschlagt, so dass die Lamellenelemente 37; 38 nicht mehr reibschlüssig beklemmt werden. Anschließend werden die Aktoren 34 jeweils mit gerade soviel Druck beaufschlagt, dass sich der gewünschte Anpressdruck zwischen den Walzen 21 und 22 bzw. zwischen der Walze 21 und weiteren, in
In
Wie in
In
In
Zur Einstellung des Anpressdruckes in den Walzenstreifen 62; 63 zwischen den Walzen 53 und 54 einerseits und der verstellbar gelagerten Walze 52 andererseits, kann wie folgt vorgegangen werden.For adjusting the contact pressure in the
Zunächst wird in den Druckkammern 56 und 57 jeweils ein Luftdruck angelegt, der im Ergebnis zu einer Einstellkraft auf die Walze 52 in der gewünschten Größe und Richtung wirkt. Anschließend wird die Druckkammer 61 mit Druckluft befüllt, um so die Fixierung der Walze 52 zu lösen. Unter dem von den Druckkammern 57 und 56 aufgebrachten Anpressdruck wird die Walze 52 dann gegen die Walzen 53 und 54 gedrückt. Durch Veränderung des Drucks in den Druckkammern 56 und 57 kann der Anpressdruck in den Walzenstreifen 62 und 63 unabhängig voneinander variabel eingestellt werden. Sobald der Anpressdruck in den Walzenstreifen 62 und 63 den Sollwerten entspricht, wird die Druckkammer 61 durch Druckablassen entlüftet und dadurch die verstellbar gelagerte Walze 52 relativ zu den Walzen 53 und 54 fixiert.First, an air pressure is applied in each of the
Im Ergebnis kann somit der Anpressdruck in den Walzenstreifen 62; 63 ferngesteuert verändert werden. Das Nachstellen der Walzenstreifen 62; 63 ist auch bei laufender Produktion möglich, weil die Farbübertragung nicht unterbrochen wird. Beim Nachstellen während der laufenden Produktion wird lediglich die Druckkammer 61 zur Lösung der Fixiereinrichtung belüftet und der Druck in den Druckkammern 56; 57 soweit verändert, bis sich die gewünschten Anpressdrücke an den Walzenstreifen 62; 63 ergeben.As a result, 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. When readjusting during ongoing production, only the
Die Fixierung der Einstellung durch Entlüftung der Druckkammer 61 ist nicht zwingend erforderlich. Wenn während der Produktion die Einstelldrücke in den Druckkammern 56 und 57 aufrecht erhalten werden, kann die Fixierung durch Entlüften der Druckkammer 61 entfallen. Die Walze 52 wird in diesem Fall federnd gegen die Walzen 53 und 54 gedrückt und kann beispielsweise bei Unwuchten und Vibrationen nach hinten ausweichen. Allerdings ist bei Nichtfixierung der Walze 52 darauf zu achten, dass die im Farbwerk 51 auftretenden Vibrationen ein zulässiges Maß nicht überschreiten.The fixation of the setting by venting the
Um die Farbförderung im Farbwerk 51 zu unterbrechen, d. h. die Farbe abzustellen, werden die Druckkammern 56 und 57 entlüftet und die Druckkammern 58 und 59 belüftet. Sobald dann die Fixierung der Walze 52 durch Belüften der Druckkammer 61 gelöst wird, wird die Walze 52 aus dem Spalt zwischen den Walzen 53 und 54 herausgefahren. Wenn keinerlei Kontakt mehr zwischen der Walze 52 und den Walzen 53 bzw. 54 besteht, wird die Druckkammer 61 wieder belüftet und dadurch die Walze 52 in der abgestellten Position fixiert. Im Ergebnis wird es dadurch möglich, die Walze 52 auch bei laufender Produktion ohne Ausbau der Walze 52 abzustellen. Um Fehler durch Festsitzen der Walze 52 beim Einstellen der Anpressdrücke in den Walzenstreifen 62; 63 zu vermeiden, kann die Walze 52 vor Einstellung der Anpressdrücke durch Belüftung der Druckkammern 56 und 57 auch in der beschriebenen Weise zunächst abgestellt werden.In order to interrupt the color promotion in the
Selbstverständlich ist es durch entsprechende Ansteuerung der Druckkammern 56 bis 59 auch möglich, die Walze 52 nur von einer der Walzen 53 bzw. 54 abzustellen. Werden beispielsweise die Druckkammern 57 und 58 belüftet und die Fixierung der Walze 52 gelöst, kann dadurch erreicht werden, dass die Walze 52 von der Walze 53 abgestellt wird, zugleich aber noch in Kontakt mit der Walze 54 bleibt.Of course, it is also possible by appropriate control of the
Zur Einstellung der Anpressdrücke im Farbwerk 66 kann unterschiedlich vorgegangen werden. Nach einer ersten Verfahrensvariante werden die Anpressdrücke in den Walzenstreifen des oberen Walzenzugs 69 und des unteren Walzenzugs 74 nacheinander eingestellt. D. h. zunächst wird die Fixierung der Farbauftragswalze 73 gelöst und durch Belüftung der entsprechenden Druckkammern der Anpressdruck in den Walzenstreifen zur Rasterwalze 67 und zum Formzylinder 68 eingestellt. Parallel dazu kann der Anpressdruck zwischen der Farbauftragswalze 78 des unteren Walzenzugs 74 und der Rasterwalze 67 bzw. dem Formzylinder 68 eingestellt werden. Nach Einstellung der Farbauftragswalzen 73 bzw. 78 werden diese fixiert und anschließend der Anpressdruck zwischen der Farbübertragungswalze 72 und der Farbauftragswalze 73 bzw. der Farbübertragungswalze 77 und der Farbauftragswalze 78 durch Belüftung der entsprechenden Druckkammern eingestellt. Sobald auch die Farbübertragungswalzen 72 und 77 wieder fixiert sind, werden zuletzt die Farbübertragungswalzen 72 und 76 durch Belüftung der Druckkammern eingestellt, so dass sich in den Walzenstreifen zwischen den Farbübertragungswalzen 71 und 76 einerseits und der Rasterwalze 67 bzw. den Farbübertragungswalzen 72 und 77 andererseits die gewünschten Anpressdrücke ergeben. Sind auch die Farbübertragungswalzen 71 und 76 wieder fixiert, ist das gesamte Farbwerk 66 vollständig eingestellt.To adjust the contact pressure in the
Werden die einzelnen hintereinander angeordneten Farbübertragungswalzen 71; 72; 76; 77 bzw. Farbauftragswalzen 73; 78 in den Walzenzügen 69 bzw. 74 nacheinander eingestellt, wird dadurch der gerätetechnische Aufwand zur Realisierung erheblich verringert, da zur Einstellung der einzelnen Walzen 71; 72; 76; 77, 73; 78 jeweils dieselben Einstelleinrichtungen genutzt werden können. Bei der Realisierung der Einstellungen der einzelnen Walzen 71; 72; 76; 77, 73; 78 durch Belüftung von Druckkammern reicht es beispielsweise aus, nur zwei Proportionalventile vorzusehen, da diese nacheinander für die Einstellung der einzelnen Walzen 71; 72; 76; 77, 73; 78 verwendet werden können. Außerdem ist durch die Einstellung der Walzen 71; 72; 76; 77, 73; 78 nacheinander gewährleistet, das sich die Einstellung der Walzen 71; 72; 76; 77, 73; 78 untereinander nicht gegenseitig beeinflussen. Allerdings erfordert die Einstellung der einzelnen Walzen 71; 72; 76; 77, 73; 78 nacheinander eine relativ lange Einstellzeit.Are the individual successively arranged
Nach einer zweiten Verfahrensalternative werden die Farbübertragungswalzen 71; 72; 76; 77 bzw. die Farbauftragswalzen 73; 78 alle gleichzeitig eingestellt. D. h. die Druckkammern an den einzelnen Farbübertragungswalzen 71; 72; 76; 77 bzw. Farbauftragswalzen 73; 78 werden alle gleichzeitig mit geeigneten Luftdrücken beaufschlagt. Dabei ist allerdings zu beachten, dass sich der Anpressdruck zwischen den einzelnen Walzen 71; 72; 76; 77, 73; 78 auch auf die davor bzw. dahinter im Walzenzug 69 bzw. 74 angeordneten Walzen 71; 72; 76; 77, 73; 78 auswirkt, so dass sich die Einstellung der einzelnen Walzen 71; 72; 76; 77, 73; 78 gegenseitig beeinflusst.According to a second alternative method, the
Bei der Wahl der Luftdrücke in den einzelnen Druckkammern zur Einstellung der verschiedenen Walzen 71; 72; 76; 77, 73; 78 sind deshalb die auf die einzelnen Walzen 71; 72; 76; 77, 73; 78 wirkenden Kraftvektoren vektoriell zu addieren.In the choice of air pressures in the individual pressure chambers for adjusting the
In
Ein Verfahren zum Einstellen einer von einer ersten Walze 71 auf eine zweite Walze 72 und mindestens eine dritte Walze 67 in einer Druckmaschine ausgeübten Anpresskraft 81; 82, wobei die erste Walze 71 in einem Walzenhalter 27 gehalten ist, der seinerseits in einem Rahmenhalter 26 gelagert ist, wobei mindestens zwei Aktoren 83; 84; 93; 94 zwischen dem Walzenhalter 27 und dem Rahmenhalter 26 angeordnet sind, wobei die Aktoren 83; 84; 93; 94 in ihrem betätigten Betriebszustand eine radial auf den Walzenhalter 27 gerichtete Kraft 89; 91; 96; 97 ausüben, beinhaltet also als Verfahrensschritte, dass eine Resultierende 88 als Vektorsumme aller nach der Einstellung an der ersten Walze 71 angreifenden Kräfte 80; 81; 82 gebildet wird, dass diejenigen Aktoren 83; 84 durch ein Steuersignal betätigt werden, deren radiale Kraft 89; 91 der Resultierenden 88 entgegenwirkt und dass die radiale Kraft 89; 91 der betätigten Aktoren 83; 84 auf einen Betrag 86; 92 eingestellt wird, bis deren Vektorsumme der Resultierenden 88 entspricht. Dieses Verfahren geht davon aus, dass zu Beginn des Verfahrensablaufs zumindest ein Teil der an der ersten Walze 71 angreifenden Kräfte 81; 82 noch nicht real wirken, sondern angestrebte Sollwerte sind, weil zumindest die Anpresskräfte 81; 82 erst durch das vorgeschlagene Verfahren auf einen gewünschten Wert einzustellen sind. Die als Vektorsumme gebildete Resultierende 88 ist damit eine Sollwertvorgabe, auf die radiale Kräfte 89; 91 in vektorieller Addition eingestellt werden.A method of adjusting a
Im Fall des Abstellens einer ersten Walze 71 von mindestens einer zweiten Walze 67; 72 in einer Druckmaschine, wobei die erste Walze 71 in einem Walzenhalter 27 gehalten ist, der seinerseits in einem Rahmenhalter 26 gelagert ist, wobei mindestens zwei Aktoren 83; 84; 93; 94 zwischen dem Walzenhalter 27 und dem Rahmenhalter 26 angeordnet sind, wobei die Aktoren 83; 84; 93; 94 in ihrem betätigten Betriebszustand eine radial auf den Walzenhalter 27 gerichtete Kraft 89; 91; 96; 97 ausüben, ergibt sich in analoger Weise ein Verfahren, das sich dadurch auszeichnet, dass eine Resultierende 88 als Vektorsumme aller nach dem Abstellen an der ersten Walze 71 angreifenden Kräfte 80; 81; 82 gebildet wird, dass mindestens ein Aktor 83; 84 durch ein Steuersignal betätigt wird, dessen radiale Kraft 89; 91 der Resultierenden 88 entgegenwirkt und dass die radiale Kraft 89; 91 des betätigten Aktors 83; 84 auf einen Betrag 86; 92 eingestellt wird, der der Vektorsumme der Resultierenden 88 entspricht.In the case of parking a
In beiden zuvor beschriebenen Verfahren wird die Gewichtskraft 80 der ersten Walze 71 vorzugsweise in die Vektorsumme zur Bildung der Resultierenden 88 einbezogen, weil ihr Beitrag in der Vektorsumme i. d. R. nicht vernachlässigbar gering ist. Wenn nun allein die Gewichtskraft 80 der ersten Walze 71 die Resultierende 88 bildet, weil z. B. keinerlei Anpresskräfte auf die erste Walze 71 wirken, wird die radiale Kraft 91; 97 der betätigten Aktoren 83; 94 zumindest zeitweise auf einen Betrag 86; 98 eingestellt, dass deren Vektorsumme während des Abstellens betragsmäßig größer ist als die Resultierende 88. Dieser Verfahrensschritt dient dem Abstellen der ersten Walze 71, d. h. dem Aufbringen einer Kraft, die die erste Walze 71 zu einer Bewegung veranlaßt. Wenn die erste Walze 71 eine bestimmte Sollposition erreicht hat, ist für die der Resultierenden 88 entgegenwirkenden Kraft nur noch ein Betrag erforderlich, der die erste Walze 71 in einem Ruhezustand hält. In der bevorzugten Ausführung verschieben demnach die betätigten Aktoren 83; 84; 93; 94 den Walzenhalter 27 im Rahmenhalter 26, wobei die Aktoren 83; 84; 93; 94 den Mittelpunkt des Walzenhalters 27 z. B. bis zu 15 mm exzentrisch vom Mittelpunkt des Rahmenalters 26 verschieben können. Dabei kann der Walzenhalter 27 im Rahmenhalter 26 derart exzentrisch verschiebbar sein, dass die erste Walze 71 und die zweite Walze 72 außer Kontakt geraten, wobei diese Verschiebung durch die Betätigung von nur einem einzigen Aktor 83; 84; 93; 94 hervorgerufen sein kann, der zwischen dem Walzenhalter 27 und dem Rahmenhalter 26 angeordnet ist. Zwischen dem Walzenhalter 27 und dem Rahmenhalter 26 kann auch mindestens ein Federelement vorgesehen sein, gegen welches die Aktoren 83; 84; 93; 94 den Walzenhalter 27 im Rahmenhalter 26 verschieben und welches den Walzenhalter 27 im durch die Aktoren 83; 84; 93; 94 unbelasteten Betriebszustand in eine Ausgangsposition zurückstellt.In both of the methods described above, the
Vorzugsweise werden zur Ausübung des zuvor beschriebenen Verfahrens nur diejenigen Aktoren 83; 84; 93; 94 betätigt, deren radiale Kraft 89; 91; 96; 97 einen positiven Betrag 86; 92; 98 gegen die Resultierende 88 aufweist. Es ist von Vorteil, wenn der Walzenhalter 27 in dem Rahmenhalter 26 z. B. in der in Verbindung mit der
Eine Vorrichtung 20 zum Einstellen einer von einer ersten Walze 71 auf eine zweite Walze 72 und mindestens eine dritte Walze 67 in einer Druckmaschine ausgeübten Anpresskraft 81; 82 und/oder zum An-/Abstellen von einer ersten Walze 71 an bzw. von einer zweiten Walze 72 und mindestens einer dritten Walze 67 und damit zur Durchführung der zuvor beschriebenen Verfahren, wobei die erste Walze 71 in einem Walzenhalter 27 gehalten ist, der seinerseits in einem Rahmenhalter 26 gelagert ist, wobei mindestens zwei Aktoren 83; 84; 93; 94 zwischen dem Walzenhalter 27 und dem Rahmenhalter 26 angeordnet sind, wobei die Aktoren 83; 84; 93; 94 in ihrem betätigten Betriebszustand eine radial auf den Walzenhalter 27 gerichtete Kraft 89; 91; 96; 97 ausüben, kann z. B. dadurch gekennzeichnet sein, dass mindestens eine radiale Kraft 89; 91 der durch ein Steuersignal betätigten Aktoren 83; 84 mit einer an der ersten Walze 71 angreifenden Kraft 80; 81; 82 fluchtet. Eine weitere besondere Anordnung für die vorgenannte Vorrichtung 20 ergibt sich, wenn zwei durch ein Steuersignal betätigte Aktoren 83; 84 derart angeordnet sind, dass der Betrag 86; 92 von deren radialen Kraft 89; 91 gleich groß eingestellt ist und eine Vektorsumme dieser Beträge 86; 92 einer Resultierenden 88 entgegenwirkt, wobei die Resultierende 88 in der bereits erwähnten Weise als eine Vektorsumme aus allen an der ersten Walze 71 angreifenden Kräfte 80; 81; 82 gebildet ist.An
Wie aus der
In einer bevorzugten Ausführung der Vorrichtung 20 sind die Aktoren 83; 84; 93; 94 in oder an einer Wandung des Rahmenhalters 27 ausgebildet sind, und zwar vorzugsweise als in oder an einer Wandung des Rahmenhalters 26 oder des Walzenhalters 27 angebrachte, seitenbegrenzte Druckkammern (vgl.
Es ist vorteilhaft, wenn der Rahmenhalter 26 Anschlüsse für Zuleitungen zur Druckmittelzufuhr für die Hohlkörper bzw. Druckkammern aufweist (
Die
Die
Ein drittes Ausführungsbeispiel einer Walzenanordnung ist in der
Auch bei dieser Vorrichtung 20 mit zwei unabhängig voneinander an eine dritte Walze 67 anstellbaren Walzen 71; 72 kann die erste Walze 71 und/oder die zweite Walze 72 jeweils in einem Walzenhalter 27 gehalten sein, der seinerseits in einem Rahmenhalter 26 gelagert ist, wobei die Aktoren 83; 84; 93; 94 vorzugsweise zwischen dem Rahmenhalter 26 und dem Walzenhalter 27 angeordnet sind. Der Rahmenhalter 26 ist vorteilhafterweise als ein Gehäuse ausgebildet, in welchem die Aktoren 83; 84; 93; 94 angeordnet sind (vgl.
Das in
In einem als Farbkasten 09 ausgebildeten Vorratsbehälter 09 ist eine bestimmte Menge einer pastösen Druckfarbe 10 gespeichert. Durch Einsatz eines Farbduktors 11 im Zusammenwirken mit einem Farbmesser 12 kann die Druckfarbe 10 in geeigneter Weise nachgefördert werden. Ein Farbfilm bestimmter Dicke wird vom Farbduktor 11 auf eine nachgeordnete Walze 13, z. B. Filmwalze 13 übertragen. Durch Abrollen der jeweils aneinanderliegenden Mantelflächen der Walzen 14; 15, z. B. Farbübertragungswalzen 14; 15 bzw. der jeweils nachgeordneten Walzen 16; 17, z. B. Farbreibwalzen 16; 17 wird die Druckfarbe 10 dann auf zwei Walzen 18; 19, z. B. zwei Farbauftragswalzen 18; 19 übertragen. Die Farbauftragswalzen 18; 19 ihrerseits rollen auf dem Formzylinder 02 und tragen dabei die nachgeförderte Druckfarbe 10 auf den Formzylinder 02.In a trained as a
Der Formzylinder 02, die Farbreibwalzen 16; 17, die Filmwalze 13 und der Farbduktor 11 1 sind alle fest in einem in
Die Farbübertragungswalzen 14 bzw. 15 und Farbauftragswalzen 18 bzw.19 sind jeweils mit zwei Vorrichtungen 20 an den gegenüberliegenden Seiten des Maschinengestells gelagert, so dass zwischen den Walzen 16; 17; 13 bzw. dem Zylinder 02 im Walzenzug des Farbwerks 01 durch Betätigung dieser Vorrichtungen 20 eine Verstellung der Farbübertragungswalzen 14 bzw. 15 und Farbauftragswalzen 18 bzw.19 möglich ist. Der Anpressdruck in den Walzenstreifen zwischen den Farbübertragungswalzen 14 bzw. 15 und Farbauftragswalzen 18 bzw.19 einerseits und dem Formzylinder 02, den Farbreibwalzen 16; 17 und der Filmwalze 13 und dem Farbduktor 11 anderseits kann jeweils nacheinander eingestellt werden. Besonders schnell ist die Einstellung des Farbwerks 01 dadurch realisierbar, dass der Anpressdruck in den Walzenstreifen überall gleichzeitig eingestellt wird. Dazu werden die Vorrichtungen 20, in denen die Farbübertragungswalzen 14 bzw. 15 und Farbauftragswalzen 18 bzw.19 gelagert sind, im Wesentlichen zeitgleich betätigt. Eine Beeinflussung des Anpressdruckes in den einzelnen Walzenstreifen ist dabei auch bei gleichzeitiger Betätigung aller Vorrichtungen 20 ausgeschlossen, da zwischen den verstellbar gelagerten Farbübertragungswalzen 14 bzw. 15 und Farbauftragswalzen 18 bzw.19 jeweils eine gestellfest gelagerte Walze 16 bzw. 17, nämlich die Farbreibwalze 16 bzw. 17, angeordnet ist.The
Auch am Feuchtwerk 06 sind die mit Vorrichtungen 20 verstellbar gelagerten Feuchtwalzen 08a bzw. 08c zwischen den gestellfest gelagerten Feuchtwalzen 08b bzw. 08d und dem gestellfest gelagerten Formzylinder 02 angeordnet.Also on dampening
Bezugszeichenliste
- 01
- Farbwerk
- 02
- Zylinder, Formzylinder
- 03
- Gummituchzylinder
- 04
- Gegendruckzylinder
- 05
- -
- 06
- Feuchtwerk
- 07
- Sprüheinrichtung
- 08
- -
- 09
- Vorratsbehälter, Farbkasten
- 10
- Druckfarbe
- 11
- Farbduktor
- 12
- Farbmesser
- 13
- Walze, Filmwalze
- 14
- Walze, Farbübertragungswalze
- 15
- Walze, Farbübertragungswalze
- 16
- Walze, Farbreibwalze
- 17
- Walze, Farbreibwalze
- 18
- Walze, Farbauftragswalze
- 19
- Walze, Farbauftragswalze
- 20
- Vorrichtung
- 21
- Walze
- 22
- Walze
- 23
- Achse
- 24
- Schnellverschluss
- 25
- -
- 26
- Rahmenhalter
- 27
- Walzenhalter
- 28
- Grundplatte (26)
- 29
- Hülsenkörper (26)
- 30
- -
- 31
- Ausnehmung (26)
- 32
- Abschnitt (27)
- 33
- Spalt
- 34
- Aktor, Druckschlauch
- 35
- -
- 36
- Druckkammer
- 37
- Lamellenelement (27)
- 38
- Lamellenelement (26)
- 39
- Stempel
- 40
- Stempelkopf
- 41
- Flansch (40)
- 42
- Druckplatte
- 43
- Federelement, Tellerfederpaket
- 44
- Druckanschluss
- 45
- -
- 46
- Druckkammer
- 47
- Befestigungsschraube
- 48
- Zuleitung
- 49
- -
- 50
- -
- 51
- Farbwerk
- 52
- Walze, verstellbar gelagert
- 53
- Walze, gestellfest gelagert
- 54
- Walze, gestellfest gelagert
- 55
- -
- 56
- Druckkammer
- 57
- Druckkammer
- 58
- Druckkammer
- 59
- Druckkammer
- 60
- -
- 61
- Druckkammer
- 62
- Walzenstreifen
- 63
- Walzenstreifen
- 64
- -
- 65
- -
- 66
- Farbwerk
- 67
- Walze, Rasterwalze
- 68
- Zylinder, Formzylinder
- 69
- Walzenzug, oberer
- 70
- -
- 71
- Walze, Farbübertragungswalze
- 72
- Walze, Farbübertragungswalze
- 73
- Walze, Farbauftragswalze
- 74
- Walzenzug, unterer
- 75
- -
- 76
- Walze, Farbübertragungswalze
- 77
- Walze, Farbübertragungswalze
- 78
- Walze, Farbauftragswalze
- 79
- Gestell
- 80
- Kraftvektor, Gewichtskraft
- 81
- Kraftvektor, Anpresskraft
- 82
- Kraftvektor, Anpresskraft
- 83
- Aktor; Druckkammer
- 84
- Aktor; Druckkammer
- 85
- -
- 86
- Kraftvektor, Einstellkraft
- 87
- Kraftvektor, Einstellkraft
- 88
- Resultierende
- 89
- radiale Kraft
- 90
- -
- 91
- radiale Kraft
- 92
- Kraftvektor, Einstellkraft
- 93
- Aktor; Druckkammer
- 94
- Aktor; Druckkammer
- 95
- -
- 96
- radiale Kraft
- 97
- radiale Kraft
- 98
- Kraftvektor, Einstellkraft
- 08a
- Walze, Feuchtwalze
- 08b
- Walze, Feuchtwalze
- 08c
- Walze, Feuchtwalze
- 08d
- Walze, Feuchtwalze
- α, α1, α2
- Öffnungswinkel zwischen radialen Kräften
- β
- Öffnungswinkel zwischen Anpresskräften
- γ1, γ2
- Öffnungswinkel zwischen einer radialen Kraft und einer Resultierenden
- 01
- inking
- 02
- Cylinder, forme cylinder
- 03
- Blanket cylinder
- 04
- Impression cylinder
- 05
- -
- 06
- dampening
- 07
- spraying
- 08
- -
- 09
- Reservoir, color box
- 10
- printing ink
- 11
- ink fountain roller
- 12
- colorimeter
- 13
- Roller, film roller
- 14
- Roller, ink transfer roller
- 15
- Roller, ink transfer roller
- 16
- Roller, inking roller
- 17
- Roller, inking roller
- 18
- Roller, inking roller
- 19
- Roller, inking roller
- 20
- contraption
- 21
- roller
- 22
- roller
- 23
- axis
- 24
- quick release
- 25
- -
- 26
- frame holder
- 27
- roller holder
- 28
- Base plate (26)
- 29
- Sleeve body (26)
- 30
- -
- 31
- Recess (26)
- 32
- Section (27)
- 33
- gap
- 34
- Actuator, pressure hose
- 35
- -
- 36
- pressure chamber
- 37
- Slat element (27)
- 38
- Slat element (26)
- 39
- stamp
- 40
- ram head
- 41
- Flange (40)
- 42
- printing plate
- 43
- Spring element, plate spring package
- 44
- pressure connection
- 45
- -
- 46
- pressure chamber
- 47
- fixing screw
- 48
- supply
- 49
- -
- 50
- -
- 51
- inking
- 52
- Roller, adjustable
- 53
- Roller, fixed to the frame
- 54
- Roller, fixed to the frame
- 55
- -
- 56
- pressure chamber
- 57
- pressure chamber
- 58
- pressure chamber
- 59
- pressure chamber
- 60
- -
- 61
- pressure chamber
- 62
- roller strip
- 63
- roller strip
- 64
- -
- 65
- -
- 66
- inking
- 67
- Roller, anilox roller
- 68
- Cylinder, forme cylinder
- 69
- Compactor, upper
- 70
- -
- 71
- Roller, ink transfer roller
- 72
- Roller, ink transfer roller
- 73
- Roller, inking roller
- 74
- Compactor, lower
- 75
- -
- 76
- Roller, ink transfer roller
- 77
- Roller, ink transfer roller
- 78
- Roller, inking roller
- 79
- frame
- 80
- Force vector, weight force
- 81
- Force vector, contact pressure
- 82
- Force vector, contact pressure
- 83
- actuator; pressure chamber
- 84
- actuator; pressure chamber
- 85
- -
- 86
- Force vector, adjustment force
- 87
- Force vector, adjustment force
- 88
- resulting
- 89
- radial force
- 90
- -
- 91
- radial force
- 92
- Force vector, adjustment force
- 93
- actuator; pressure chamber
- 94
- actuator; pressure chamber
- 95
- -
- 96
- radial force
- 97
- radial force
- 98
- Force vector, adjustment force
- 08a
- Roller, dampening roller
- 08b
- Roller, dampening roller
- 08c
- Roller, dampening roller
- 08d
- Roller, dampening roller
- α, α1, α2
- Opening angle between radial forces
- β
- Opening angle between contact forces
- γ1, γ2
- Opening angle between a radial force and a resultant
Claims (36)
- A method of setting a pressing force (81; 82) exerted by a first roller (08a; 08c; 14; 15; 18; 19; 52; 71; 73; 76; 78) upon a second roller (08b; 16; 17; 54; 72; 77) and at least one third roller (02; 08d; 13; 67) in a printing press, wherein the first roller (08a; 08c; 14; 15; 18; 19; 52; 71; 73; 76; 78) is held in a roller retaining means (27) which in turn is mounted in a frame retaining means (26), wherein at least two actuators (83; 84; 93; 94) are arranged between the roller retaining means (27) and the frame retaining means (26), wherein the actuators (83; 84; 93; 94) in their actuated operative state exert a force (89; 91; 96; 97) directed radially upon the roller retaining means (27), wherein a resultant (88) is formed as a vector sum of all the forces (80; 81, 82) engaging on the first roller (08a; 08c; 14; 15; 18; 19; 52; 71; 73; 76; 78) after the setting, wherein those actuators (83; 84), of which the radial force (89; 91) counteracts the resultant (88), are actuated, wherein the radial force (89; 91) of the actuated actuators (83; 84) is set to an amount (86; 92) until the vector sum thereof corresponds to the resultant (88), characterized in that the actuators (83; 84) are actuated by a control signal, and the actuators (83; 84) actuated by a control signal exert a radial force (89; 91), wherein an opening angle (γ1; γ2) between the radial force (89; 91) of the actuated actuator (83; 84) and a resultant (88) counteracting the radial force (89; 91) amounts to at least 15°, and wherein the resultant (88) is formed as a vector sum of all the forces (80; 81, 82) engaging on the first roller (08a; 08c; 14; 15; 18; 19; 52; 71; 73; 76; 78).
- A method of setting off a first roller (08a; 08c; 14; 15; 18; 19; 52; 71; 73; 76; 78) from at least one second roller (08b; 16; 17; 54; 72; 77) in a printing press, wherein the first roller (08a; 08c; 14; 15; 18; 19; 52; 71; 73; 76; 78) is held in a roller retaining means (27) which in turn is mounted in a frame retaining means (26), wherein at least two actuators (83; 84; 93; 94) are arranged between the roller retaining means (27) and the frame retaining means (26), wherein the actuators (83; 84; 93; 94) in their actuated operative state exert a force (89; 91; 96; 97) directed radially upon the roller retaining means (27), wherein a resultant (88) is formed as a vector sum of all the forces (80; 81, 82) engaging on the first roller (08a; 08c; 14; 15; 18; 19; 52; 71; 73; 76; 78) after the setting off, wherein at least one actuator (83; 84), of which the radial force (89; 91) counteracts the resultant (88), is actuated, wherein the radial force (89; 91) of the actuated actuator (83; 84) is set to an amount (86; 92) which corresponds to the vector sum of the resultant (88), characterized in that the actuators (83; 84) are actuated by a control signal, and two actuators (83; 84) actuated by a control signal exert a radial force (89; 91), wherein an opening angle (γ1; γ2) between the radial force (89; 91) of the actuated actuator (83; 84) and a resultant (88) counteracting the radial force (89; 91) amounts to at least 15°, and wherein the resultant (88) is formed as a vector sum of all the forces (80; 81, 82) engaging on the first roller (08a; 08c; 14; 15; 18; 19; 52; 71; 73; 76; 78).
- A method according to one of the preceding Claims, characterized in that the weight force (80) of the first roller (08a; 08c; 14; 15; 18; 19; 52; 71; 73; 76; 78) is included in the vector sum in order to form the resultant (88).
- A method according to one of Claims 2 or 3, characterized in that, in the event that the weight force (80) of the first roller (08a; 08c; 14; 15; 18; 19; 52; 71; 73; 76; 78) alone forms the resultant (88), the radial force (91; 97) of the actuated actuators (83; 84) is set at least temporarily to an amount (86; 98) so that the vector sum thereof during this setting-off is quantitatively greater than the resultant (88).
- A method according to any one of the preceding Claims, characterized in that those actuators (83; 84; 93; 94), of which the radial force (89; 91; 96; 97) has a positive amount (86; 92; 98) against the resultant (88), are actuated.
- A method according to any one of the preceding Claims, characterized in that the roller retaining means (27) is fixed in the frame retaining means (26) after the vector sum of the radial forces (89; 91; 97) set to the amount (86; 92; 98) corresponds to the resultant (88).
- A method according to any one of the preceding Claims, characterized in that the actuated actuators (83; 84; 93; 94) displace the roller retaining means (27) in the frame retaining means (26).
- A method according to any one of the preceding Claims, characterized in that the actuators (83; 84; 93; 94) displace the mid-point of the roller retaining means (27) up to 15 mm in an eccentric manner from the mid-point of the frame retaining means (26).
- An apparatus for setting a pressing force (81; 82) exerted by a first roller (08a; 08c; 14; 15; 18; 19; 52; 71; 73; 76; 78) upon a second roller (08b; 16; 17; 54; 72; 77) and at least one third roller (02; 08d; 13; 67) in a printing press and/or for setting a first roller (08a; 08c; 14; 15; 18; 19; 52; 71; 73; 76; 78) on or off from a second roller (08b; 16; 17; 54; 72; 77) and at least one third roller (02; 08d; 13; 67), wherein the first roller (08a; 08c; 14; 15; 18; 19; 52; 71; 73; 76; 78) is held in a roller retaining means (27) which in turn is mounted in a frame retaining means (26), wherein at least two actuators (83; 84; 93; 94) are arranged between the roller retaining means (27) and the frame retaining means (26), wherein the actuators (83; 84; 93; 94) in their actuated operative state exert a force (89; 91; 96; 97) directed radially upon the roller retaining means (27), characterized in that the radial force (89; 91) of two of the actuators (83; 84) actuated by a control signal is set in such a way that each of the said radial forces (89; 91) has an amount (86; 92) of at least 30 % of a counteracting resultant (88), wherein the resultant (88) is formed as a vector sum of all the forces (80; 81, 82) alone engaging on the first roller (08a; 08c; 14; 15; 18; 19; 52; 71; 73; 76; 78), and the radial forces (89; 91) of the actuated actuators (83; 84) form an opening angle (α) with each other which is not equal to an opening angle (β) which is formed by the pressing force (82) exerted by the first roller (08a; 08c; 14; 15; 18; 19; 52; 71; 73; 76; 78) upon the second roller (08b; 16; 17; 54; 72; 77) with the pressing force (81) exerted by the first roller (08a; 08c; 14; 15; 18; 19; 52; 71; 73; 76; 78) upon the third roller (02; 08d; 13; 67).
- An apparatus according to Claim 9, characterized in that the opening angle (α) formed by the radial forces (89; 91) of the actuated actuators (83; 84) amounts to between 45° and 135°.
- An apparatus according to Claim 9, characterized in that the opening angle (β), which is formed by the pressing force (82) exerted by the first roller (08a; 08c; 14; 15; 18; 19; 52; 71; 73; 76; 78) upon the second roller (08b; 16; 17; 54; 72; 77) with the pressing force (81) exerted by the first roller (08a; 08c; 14; 15; 18; 19; 52; 71; 73; 76; 78) upon the third roller (02; 08d; 13; 67), amounts to between 30° and 180°.
- An apparatus for setting a pressing force (81; 82) exerted by a first roller (08a; 08c; 14; 15; 18; 19; 52; 71; 73; 76; 78) upon a second roller (08b; 16; 17; 54; 72; 77) and at least one third roller (02; 08d; 13; 67) in a printing press and/or for setting a first roller (08a; 08c; 14; 15; 18; 19; 52; 71; 73; 76; 78) on or off from a second roller (08b; 16; 17; 54; 72; 77) and at least one third roller (02; 08d; 13; 67), wherein the first roller (08a; 08c; 14; 15; 18; 19; 52; 71; 73; 76; 78) is held in a roller retaining means (27) which in turn is mounted in a frame retaining means (26), wherein at least two actuators (83; 84; 93; 94) are arranged between the roller retaining means (27) and the frame retaining means (26), wherein the actuators (83; 84; 93; 94) in their actuated operative state exert a force (89; 91; 96; 97) directed radially upon the roller retaining means (27), wherein two actuators (83; 84) exert a radial force (89; 91), wherein an opening angle (γ1; γ2) between the radial force (89; 91) of the actuated actuator (83; 84) and a resultant (88) counteracting the radial force (89; 91) amounts to at least 15°, wherein the resultant (88) is formed as a vector sum of all the forces (80; 81, 82) engaging on the first roller (08a; 08c; 14; 15; 18; 19; 52; 71; 73; 76; 78), characterized in that the actuators (83; 84) exerting the radial force (89; 91) are actuated by a control signal, and the roller retaining means (27) is displaceable in an eccentric manner in the frame retaining means (26) in such a way that the first roller (08a; 08c; 14; 15; 18; 19; 52; 71; 73; 76; 78) and the second roller (08b; 16; 17; 54; 72; 77) move out of contact.
- An apparatus according to any one of the preceding Claims 9 to 12, characterized in that at least one actuator (83; 84; 93; 94), which when actuated moves the first roller (08a; 08c; 14; 15; 18; 19; 52; 71; 73; 76; 78) and the second roller (08b; 16; 17; 54; 72; 77) out of contact, is arranged between the roller retaining means (27) and the frame retaining means (26).
- An apparatus according to any one of the preceding Claims 9 to 13, characterized in that a fixing device is provided by which the roller retaining means (27) is capable of being fixed in the frame retaining means (26).
- An apparatus according to any one of the preceding Claims 9 to 14, characterized in that at least one spring element, against which the actuators (83; 84; 93; 94) displace the roller retaining means (27) in the frame retaining means (26) and which in the operative state not stressed by the actuators (83; 84; 93; 94) sets the roller retaining means (27) back into a starting position, is provided between the roller retaining means (27) and the frame retaining means (26).
- An apparatus according to any one of the preceding Claims 9 to 15, characterized in that the actuators (83; 84; 93; 94) are constructed in the form of a hollow body capable of being acted upon with pressure.
- An apparatus according to any one of the preceding Claims 9 to 16, characterized in that the hollow body is capable of being acted upon pneumatically.
- An apparatus according to any one of the preceding Claims 9 to 17, characterized in that the hollow body is constructed without piston rods.
- An apparatus according to any one of the preceding Claims 9 to 18, characterized in that the hollow body is formed at least in part from an elastomer material.
- An apparatus according to any one of the preceding Claims 9 to 19, characterized in that the actuators (83; 84; 93; 94) are formed in or on a wall of the frame retaining means (27).
- An apparatus according to any one of the preceding Claims 9 to 20, characterized in that the actuators (83; 84; 93; 94) are constructed in the form of pressure chambers which are attached in or on a wall of the frame retaining means (26) or of the roller retaining means (27) and which are bounded at the side, wherein when acted upon with pressure the pressure chambers perform a radial stroke directed towards the roller retaining means (27).
- An apparatus according to any one of the preceding Claims 9 to 21, characterized in that the radial stroke amounts to up to 10 mm.
- An apparatus according to any one of the preceding Claims 9 to 22, characterized in that the frame retaining means (26) has connexions for supply lines for the supply of pressure medium for the hollow bodies or pressure chambers respectively.
- An apparatus according to any one of the preceding Claims 9 to 23, characterized in that at least the frame retaining means (26) is designed in a rotationally symmetrical manner.
- An apparatus according to any one of the preceding Claims 9 to 24, characterized in that the pressure chambers have a diaphragm.
- An apparatus according to any one of the preceding Claims 9 to 25, characterized in that at least one web, which is formed integrally on the frame retaining means (27) and to which the diaphragm is connected, is formed between the pressure chambers.
- An apparatus according to any one of the preceding Claims 9 to 26, characterized in that a completely closed annular diaphragm covers all the pressure chambers.
- An apparatus according to any one of the preceding Claims 9 to 27, characterized in that an associated diaphragm is provided for each pressure chamber.
- An apparatus according to any one of the preceding Claims 9 to 28, characterized in that the diaphragm is inserted, secured by adhesion or clamped in a groove formed in the frame retaining means (27).
- An apparatus according to any one of the preceding Claims 9 to 29, characterized in that three or four actuators (83; 84; 93; 94) or pressure chambers are provided.
- An apparatus according to any one of the preceding Claims 9 to 30, characterized in that the actuators (83; 84; 93; 94) or pressure chambers are arranged spaced equidistantly along the periphery of the roller retaining means (27).
- An apparatus according to any one of the preceding Claims 9 to 31, characterized in that the frame retaining means (26) is constructed in the form of a housing in which the actuators (83; 84; 93; 94) are arranged.
- An apparatus according to any one of the preceding Claims 9 to 32, characterized in that the housing is constructed in the form of at least half a shell.
- An apparatus according to any one of the preceding Claims 9 to 33, characterized in that the first roller (08a; 08c; 14; 15; 18; 19; 52; 71; 73; 76; 78) or the second roller (08b; 16; 17; 54; 72; 77) is a roller of an inking unit or a dampening unit.
- An apparatus according to any one of the preceding Claims 9 to 34, characterized in that at least one of the rollers (08a; 08c; 14; 15; 18; 19; 52; 71; 73; 76; 78; 08b; 16; 17; 54; 72; 77) capable of being set and/or of being set on or off is a roller which co-operates with a forme cylinder (02).
- An apparatus according to any one of the preceding Claims 9 to 35, characterized in that all the rollers (08a; 08c; 14; 15; 18; 19; 52; 71; 73; 76; 78; 08b; 16; 17; 54; 72; 77) which co-operate with a forme cylinder (02) are capable of being set and/or of being set on or off.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10160044 | 2001-12-06 | ||
DE10160044 | 2001-12-06 | ||
PCT/DE2002/003574 WO2003049947A2 (en) | 2001-12-06 | 2002-09-21 | Method and devices for regulating at least one cylinder in a printing machine and/or placing/removing said cylinders |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1465771A2 EP1465771A2 (en) | 2004-10-13 |
EP1465771B1 true EP1465771B1 (en) | 2009-02-18 |
Family
ID=7708315
Family Applications (5)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02804558A Expired - Lifetime EP1461208B1 (en) | 2001-12-06 | 2002-09-21 | Device for regulating cylinders in a printing machine |
EP04102481A Withdrawn EP1459889A3 (en) | 2001-12-06 | 2002-09-21 | Method for operating an inking unit or a dampening unit in a printing machine |
EP04102477A Expired - Lifetime EP1468824B1 (en) | 2001-12-06 | 2002-09-21 | Device for regulating cylinders in a printing machine |
EP02804557A Expired - Lifetime EP1461207B1 (en) | 2001-12-06 | 2002-09-21 | Method for operating an inking system or a dampening system in a printing machine |
EP02781108A Expired - Lifetime EP1465771B1 (en) | 2001-12-06 | 2002-09-21 | Method and devices for regulating at least one cylinder in a printing machine and/or placing/removing said cylinders |
Family Applications Before (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02804558A Expired - Lifetime EP1461208B1 (en) | 2001-12-06 | 2002-09-21 | Device for regulating cylinders in a printing machine |
EP04102481A Withdrawn EP1459889A3 (en) | 2001-12-06 | 2002-09-21 | Method for operating an inking unit or a dampening unit in a printing machine |
EP04102477A Expired - Lifetime EP1468824B1 (en) | 2001-12-06 | 2002-09-21 | Device for regulating cylinders in a printing machine |
EP02804557A Expired - Lifetime EP1461207B1 (en) | 2001-12-06 | 2002-09-21 | Method for operating an inking system or a dampening system in a printing machine |
Country Status (9)
Country | Link |
---|---|
US (2) | US7124683B2 (en) |
EP (5) | EP1461208B1 (en) |
JP (1) | JP4068063B2 (en) |
CN (2) | CN1330481C (en) |
AT (4) | ATE318707T1 (en) |
AU (3) | AU2002366535A1 (en) |
DE (7) | DE50208517D1 (en) |
ES (1) | ES2257599T3 (en) |
WO (3) | WO2003049948A2 (en) |
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ATE517743T1 (en) | 2003-09-26 | 2011-08-15 | Koenig & Bauer Ag | ROLLER OF AN INKING OR DAMPENING UNIT OF A PRINTING MACHINE |
DE102004004665B4 (en) * | 2004-01-30 | 2005-12-29 | Koenig & Bauer Ag | Device for adjusting a pressing force exerted by a roller in a roller strip on an adjacent rotary body and for setting the roller against the rotary body or for stopping the roller from the rotary body |
KR100634327B1 (en) * | 2005-04-13 | 2006-10-13 | 한국기계연구원 | Electronic element production method and production device |
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CN106891607B (en) * | 2017-03-01 | 2018-10-23 | 江苏澳伦特印刷器材有限公司 | A kind of printing roller support |
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-
2002
- 2002-09-21 DE DE50208517T patent/DE50208517D1/en not_active Expired - Lifetime
- 2002-09-21 DE DE10244042A patent/DE10244042B4/en not_active Expired - Fee Related
- 2002-09-21 WO PCT/DE2002/003573 patent/WO2003049948A2/en active IP Right Grant
- 2002-09-21 ES ES02804558T patent/ES2257599T3/en not_active Expired - Lifetime
- 2002-09-21 US US10/496,318 patent/US7124683B2/en not_active Expired - Lifetime
- 2002-09-21 EP EP02804558A patent/EP1461208B1/en not_active Expired - Lifetime
- 2002-09-21 EP EP04102481A patent/EP1459889A3/en not_active Withdrawn
- 2002-09-21 DE DE50205974T patent/DE50205974D1/en not_active Expired - Lifetime
- 2002-09-21 AU AU2002366535A patent/AU2002366535A1/en not_active Abandoned
- 2002-09-21 WO PCT/DE2002/003574 patent/WO2003049947A2/en not_active Application Discontinuation
- 2002-09-21 AT AT02804558T patent/ATE318707T1/en active
- 2002-09-21 AU AU2002349270A patent/AU2002349270A1/en not_active Abandoned
- 2002-09-21 WO PCT/DE2002/003572 patent/WO2003049946A2/en active IP Right Grant
- 2002-09-21 AT AT04102477T patent/ATE435115T1/en not_active IP Right Cessation
- 2002-09-21 CN CNB028275764A patent/CN1330481C/en not_active Expired - Fee Related
- 2002-09-21 EP EP04102477A patent/EP1468824B1/en not_active Expired - Lifetime
- 2002-09-21 CN CNB2006101723554A patent/CN100509390C/en not_active Expired - Fee Related
- 2002-09-21 AU AU2002366534A patent/AU2002366534A1/en not_active Abandoned
- 2002-09-21 US US10/496,319 patent/US7117792B2/en not_active Expired - Fee Related
- 2002-09-21 DE DE50213302T patent/DE50213302D1/en not_active Expired - Lifetime
- 2002-09-21 AT AT02804557T patent/ATE342801T1/en active
- 2002-09-21 DE DE10244044A patent/DE10244044B4/en not_active Expired - Fee Related
- 2002-09-21 EP EP02804557A patent/EP1461207B1/en not_active Expired - Lifetime
- 2002-09-21 AT AT02781108T patent/ATE423001T1/en not_active IP Right Cessation
- 2002-09-21 EP EP02781108A patent/EP1465771B1/en not_active Expired - Lifetime
- 2002-09-21 DE DE10244043A patent/DE10244043B4/en not_active Expired - Fee Related
- 2002-09-21 DE DE50213656T patent/DE50213656D1/en not_active Expired - Lifetime
- 2002-09-21 JP JP2003550985A patent/JP4068063B2/en not_active Expired - Fee Related
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