EP1369369A1 - Fluidbeaufschlagter FanOut-Kompensator - Google Patents
Fluidbeaufschlagter FanOut-Kompensator Download PDFInfo
- Publication number
- EP1369369A1 EP1369369A1 EP03405400A EP03405400A EP1369369A1 EP 1369369 A1 EP1369369 A1 EP 1369369A1 EP 03405400 A EP03405400 A EP 03405400A EP 03405400 A EP03405400 A EP 03405400A EP 1369369 A1 EP1369369 A1 EP 1369369A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotary body
- body structure
- web
- sections
- longitudinal axis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F13/00—Common details of rotary presses or machines
- B41F13/02—Conveying or guiding webs through presses or machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
- B65H23/022—Registering, tensioning, smoothing or guiding webs transversely by tentering devices
- B65H23/025—Registering, tensioning, smoothing or guiding webs transversely by tentering devices by rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2404/00—Parts for transporting or guiding the handled material
- B65H2404/10—Rollers
- B65H2404/13—Details of longitudinal profile
- B65H2404/131—Details of longitudinal profile shape
- B65H2404/1311—Undulations, wavy shape
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2404/00—Parts for transporting or guiding the handled material
- B65H2404/10—Rollers
- B65H2404/13—Details of longitudinal profile
- B65H2404/136—Details of longitudinal profile with canals
- B65H2404/1363—Details of longitudinal profile with canals air supply or suction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2406/00—Means using fluid
Definitions
- the invention relates to the compensation of the FanOut by influencing the width a web that is printed in the printing press.
- the invention relates Both a FanOut compensator and a method for compensating the FanOut.
- the FanOut compensator can already be installed in the printing press or, still outside the printing press, for installation for the purpose of FanOut compensation be provided.
- the printing press is one Machine that prints wet, preferably using a dampening solution. Of the Offset printing should be mentioned here as an example.
- the Printing press a newspaper printing machine for printing large newspaper editions his.
- the web is preferably passed endlessly through the machine and from a Roll unwound, i. the printing press is such a design Web-fed printing press and more preferably a web-fed rotary printing press.
- FanOut In printing machines occur due to liquid penetrated into the web Transverse strain changes. This phenomenon known as FanOut has to unwelcome consequence that measured across the web conveying direction width of the Web between two printing nips, in which the web is printed one after the other, changes.
- the phenomenon of fan-out can basically only by the However, the FanOut is practically significant especially in the pressure working with dampening solution because of the associated Moistening the web.
- the moistened in the upstream printing nip web swells up their way and will be up to the next, downstream pressure nip of the two Pressure column wider. If measures for a compensation of the width change not be taken, this leads to printing errors in the web transverse direction.
- From EP 1 101 721 A1 are devices for compensating the FanOut for the Web-fed rotary printing with which the web is transverse to its conveying direction is deformed wave-shaped before moving into a subsequent pressure nip in which they is printed, enters.
- the width of the web is the width change, due to the FanOut is expected to be adjusted in advance, i. compensated.
- the invention also relates in particular to FanOut compensators, as described in EP 1 102 721 A1 are known and also relates in particular to the executable therewith Method of FanOut compensation.
- FanOut compensation should not negatively affect the printing process influence.
- the invention relates to the FanOut compensation in a printing press with the aid of a FanOut compensator, which includes a rotating body formed from one to is wrapped around the printing web.
- the wrap angle should be at least 3 ° be. However, a wrap angle of 5 ° or more, for example 10 °, becomes prefers.
- the wrap angle can be up to 180 °.
- the train will due to the looping and the web longitudinal tension acting in the conveying direction of the rotational body structure transversely to the conveying direction embossed a wave profile.
- the width of the web is determined by the impressing of the wave profile corresponding to Amplitude of the wave profile is reduced to those caused by the FanOut Compensate for the increase in width.
- the course should be as close as possible in the two closest to the FanOut compensator in the path of the web Pressure columns, i. in the pressure gaps between which the FanOut compensator is arranged, each have the same width.
- the surface of the rotary body structure and the Web generates a fluid gap, so that the web as small a contact surface and preferably has no direct contact with the rotating body at all, but according to the thickness of the fluid gap from the surface of the Rotations Energygetruckes is spaced. Due to the invention are thus due to the FanOut compensation minimizes frictional forces acting on the web and the Longitudinal web tension between the pressure gaps advantageously far less than at changed the fan-out compensators from the prior art. If the the Rotational body-facing bottom of the web is printed with ink, Furthermore, the danger is reduced, ideally eliminated, from the bottom of the Web ink can be transferred to the rotary body structure.
- a fanout compensator comprises a rotational body structure which along its longitudinal axis side by side alternately foot sections and head sections having a wave-shaped surface to the web to be printed across to undulate to the web conveying direction.
- the foot sections form the Wave troughs and the head sections the wave crests of a wave profile.
- Rotational body formations are fluid channels formed on the surface of the Rotationsêtsentes open.
- the rotary body structure further comprises at least a fluid port connected to the fluid port through which the fluid channels can be supplied with a pressurized fluid.
- the pressurized fluid is preferably a pressurized gas.
- Compressed air is particularly preferred.
- the mouth points of the fluid channels can over the surface of the rotating body evenly distributed in the axial direction and evenly distributed in the circumferential direction his.
- the density of the mouth sites per unit area of the surface can be at preferably uniform distribution in the circumferential direction in the axial direction periodically vary with the period of the head and foot sections. So can the Areal density of the estuaries in the formed by the head sections Surface sections are denser than in the formed by the foot sections Surface sections to axial flows from the head sections in the Compensate for foot sections.
- the fluid channels may be formed as bores and extending from their mouths at the surface through the head portions and / or foot portions of the Rotations Energygetruckes therethrough radially inwardly into one or optionally extend a plurality of cavities through which they are connected to a fluid source or connectable.
- Such holes can in particular straight and unbranched be formed. Drilling can be drilled in the immediate sense or through another type of processing, for example by means of laser, can be obtained.
- Each of the fluid channels may be separate from each of the other fluid channels and each form a single point of confluence.
- the fluid channels or a part of the fluid channels can but also branch out to the surface of the Rotations Eisengetruckes and there ever form several mouth points. It can also be between the fluid channels Cross connections exist.
- the head sections and / or the Foot sections of the rotary body structure with sufficient for the fluid line To provide porosity to obtain the fluid channels.
- the porosity is preferred an open porosity, allowing the interconnected pores of the porous material form the fluid channels.
- porous head sections and / or Foot sections is particularly suitable for the original shaping by molding a powder, preferably a metal powder, with subsequent or simultaneous sintering of the Compact. If the foot sections and / or the head sections through fluid channels Form material porosity, can also subsequently incorporated holes so that the fluid channels in their entirety become a part of pore channels and too another part are holes.
- the head sections and foot sections may be formed separately and alternately along the longitudinal axis be arranged side by side. So can the head sections and the Foot sections are formed, for example, by rollers which are about the longitudinal axis are rotatably mounted. It can also be the head sections about a common longitudinal axis and the foot sections also rotatably mounted about a common, other longitudinal axis be, wherein the two longitudinal axes in turn for an adjustment of the wave profile of Rotations Eisengesentes are relatively parallel to each other displaced, as this is described in particular in EP 1 101 721 A1.
- the head sections and the Foot sections would be in such training to a single, common hollow shaft or rotatably mounted about two mutually parallel hollow axes through which the fluid is stirred can be.
- a pivot bearing of the rotary body structure is still advantageous, namely the Adjusted wave profile formed by the surface of the rotary body structure can.
- a rotary motion of the rotary body formation finds particularity
- preferred Ausrrittung held only for the purpose of adjustment, while the Rotational body then resting in the optimally set state, i. Not about its longitudinal axis turns.
- the longitudinal axis is referred to as the axis of rotation, this is true
- a rotation body freely rotatably mounted about the rotation axis is primarily, however, is a rotating body structure intended only for Purpose of adjusting the surface profile formed by it about its axis of rotation is twisted.
- the rotary body formation is a one-piece rotary body with a surface that is rotationally symmetrical along the longitudinal axis.
- the wave profile of this body of revolution can not be changed.
- this rotary body can be freely rotatably mounted about its longitudinal axis, it is preferably not rotatably mounted in a frame of the printing press.
- the term "body of revolution" is in the case of non-rotatable mounting on the preferably round, particularly preferably rotationally symmetrical about the longitudinal axis surface of the rotating body.
- a rotational body which is the radial protruding head portions and the radially recessed foot portions alternately along the longitudinal axis next to each other also forms in one piece to the The longitudinal axis rotatably mounted to the formed by the head and foot sections Changing the wave profile.
- the maximum values have the radial height differences along one of the Rotary axis parallel offset second line.
- the first straight and the second Straight lines are preferably tangents to all head sections, if indeed all Head portions with respect to the axis of rotation have the same radial height. Is not this In the case, the two straight lines are the furthest at the tangents projecting head portion or the group of the most protruding Head sections. For the adjustment of the rotary body a rotary motion is sufficient the uniform rotation axis for the entire body of revolution.
- a rotary body according to the second embodiment is in the printing machine easy to assemble and can in the same way as other rotation body of the Printing machine, such as guide rollers, be rotatably mounted.
- the entire rotating body of the FanOut compensator should not be excluded that a few such Rotational body, for example, two or three rotating body or torsionally rigid connected head and foot sections, along a common longitudinal axis, in the second embodiment coincides with the axis of rotation, arranged side by side are.
- the surface of the rotating body structure acting on the web is in Circumferential direction preferably rounded everywhere.
- the surface along the Longitudinal axis of the rotary body structure in particular form a circle everywhere.
- the surface portions formed by the head portions are approximately in With respect to the longitudinal axis curved radially outwards and those of the foot sections formed surface sections around with respect to the longitudinal axis radially inward arched. This preferably applies everywhere over the circumference of the rotational body image.
- the head and foot sections on the surface should be soft in one another go over, i. be continuously differentiable at the transition points in the axial direction, by merging tangentially.
- the surface sections formed by head sections in Axial direction over part of their length or over their entire length are straight.
- the Transition points between the foot sections and the head sections formed surface sections should, however, in this embodiment on the The circumference of the rotating body smoothly merge into each other everywhere.
- a rotational body of head sections and foot sections, the relative are not rotatable to each other and in preferred embodiments all or zu a part of one or a few bodies of revolution formed in one piece be, facilitates the supply of the surface with the pressurized fluid considerably.
- a separate fluid rotary connection must be created, is sufficient for the relatively non-rotatable head and foot sections a common Connection.
- Such a connection is preferably created by a hollow axle, on the relative to each other not rotatable head and foot sections are stored.
- the head and Foot sections each formed separately and not rotatably mounted on the hollow shaft.
- the head and foot sections are in one Rotational body formed in one piece, inside a cavity, for example a central bore, of sufficient length, to the entire effective Surface of the rotating body to provide the fluid.
- a rotary body all or forms part of the head and foot sections in one piece, on the hollow axle be rotatably mounted.
- the hollow axle can alternatively be replaced by a hollow shaft are, i. the body of revolution forms itself or the two journals for his Pivot bearing.
- the rotary bearing of the rotating body on a hollow shaft which in the Frame of the printing machine itself is not rotatably mounted, however, is preferred.
- On Advantage of the pivot bearing on a hollow shaft is that thereby a fluid supply easier way to the circumferentially related part of the wavy Surface can be limited, which acts on the web.
- Fig. 1 shows a four-high tower with four printing units.
- the four printing units are in the Pressure tower arranged one above the other to two H-bridges.
- Each of the printing works includes two blanket cylinders and two plate cylinders, i. one plate cylinder each for one the blanket cylinder.
- the blanket cylinders form between them pressure column 1 to 4, promoted by a web W and the pressing blanket cylinders printed on both sides.
- a Infeed roller Before the first printing unit in the conveying direction is a Infeed roller and behind the last printing unit in the conveying direction is an outlet roller arranged in a known manner, which may be formed as draw rollers to a to set certain web tension.
- the web W is printed in wet offset. In this case, the web W absorbs moisture and swells. Without corrective measures, the transverse to the conveying direction of the web W would measured web width increase from printing nip to printing nip, and it would be in the printing columns 1 to 4 consecutively printed images in the transverse direction of the Web do not match, i. There would be registration errors in the transverse direction. This Phenomenon is known as "Fanout". The increase in width would be between the two H-bridges, i.e. between the pressure gaps 2 and 3, the largest, since there the way from Gap to gap is longer than between two pressure gaps of a bridge.
- the fanout compensator comprises a rotating body 6, which also serves as a deflection roller can be used.
- the rotary body 6 is immediately in front of the printing nip third arranged and fulfilled in this arrangement at the same time the function of Straight guide for the web W, so that the web W without looping in the pressure nip 3 enters.
- Fig. 1 is also an alternative printing position indicated, in which the web W only passed through the two lower pressure gaps 1 and 2, while another web W 'guided over the rotary body 6 and after deflection in the next Pressure gap 3 just starts.
- the rotary body 6 is cylindrical, but unlike a simple, smooth roller on a longitudinally corrugated surface. Wrap around and Web tension ensure that the web conforms to the surface wave pattern deformed the rotational body 6 and thereby the web width is reduced.
- For the Looping of the rotating body 6 provides a guide roller 5, over which the web W at an angle to the straight connecting line between the rotating body 6 and the next following pressure nip 3 is guided to the rotary body 6.
- additional deflection are not required.
- FIG. 2 and 3 the rotary body 6 in a first embodiment each in the same cross section, but shown in two extreme rotational angle positions.
- Fig. 4 shows the rotary body in a longitudinal view and partly in longitudinal section.
- the rotary body 6 is rotatable about a longitudinal axis D in a frame of Printing press stored.
- the longitudinal axis D is therefore hereinafter referred to as. axis of rotation designated.
- the rotary body 6 is in one piece in a process of Urformung or forming, for example, forging in the die, formed and on the surface Finely worked, preferably only smoothly worked smoothly.
- the rotation body 6 in Whole with respect to the rotation axis D is not rotationally symmetrical.
- the surface of the rotary body 6 forms a straight line T 1 parallel to the axis of rotation D for a single value of a rotational angle running about the axis of rotation D. In all other angles of rotation, the surface has a waveform with a regularly rounded, sinusoidal wave contour in the axial direction.
- the axial sections of the rotary body 6, which form the wave troughs, are referred to below as foot sections 7 and the axial sections which form the wave crests are referred to below as head sections 8.
- the radial height difference H D of the wave contour in circumferential direction about the axis of rotation D increases continuously in both directions of rotation up to a second straight line T 2 .
- the straight lines T 1 and T 2 are diametrically opposite each other with respect to the rotation axis D, ie, the straight lines T 1 and T 2 extend in a plane with the rotation axis D.
- the radial height difference H D is the amplitude of the wave contour.
- the radial height differences H D are 4 mm. These maximum height differences, which are the same in the embodiment, should be at least 2 and not more than 10 mm.
- the straight lines T 1 and T 2 are tangents to the head sections 8, ie they touch the head sections 8 just in their vertices. They come from a head enveloping sections 8 enveloping, straight envelope cylinder. If the tangent T 1 is displaced in parallel on the surface of the enveloping cylinder, the height difference H D , which is measured radially on the axis of rotation D between the vertices of the foot sections 7 and the crests of the head sections 8, increases continuously until the tangent T 2 is reached.
- FIGS. 2 to 4 Also drawn in FIGS. 2 to 4 is a circular cylinder jacket surface N, behind the foot sections 7 protrude radially and over which the head sections 8 radially protrude.
- the cylindrical surface N divides the surface profile in each longitudinal section in the Foot sections 7 and the head sections 8.
- the foot sections 7 form surface sections 9, and the head sections 8 form Surface sections 10.
- the surface sections 9 and 10 are in the axial direction and rounded in the circumferential direction, preferably continuously curved everywhere. they run in the cylinder surface N tangentially into each other, so that in the axial direction everywhere uniform waveform with continuous, i. continuously differentiable transitions between the surface portions 9 and 10 is obtained.
- the surface of the rotating body 6 forms a circle throughout the axis of rotation D in cross section.
- the circle radius in the vertices of the foot portions 7 with r 3 and in the vertices of the head portions 8 with r 4 is designated.
- the central axes of these vertex circles, designated L 7 and L 8 are eccentric with respect to the axis of rotation D, each with the eccentricity "e”.
- the center axes L 7 and L 8 extend in the same plane as the rotation axis D.
- the arcs formed by the surface portions 8 are the same length as the arcs formed by the surface portions 10. These arcs of the surface sections 8 and 9 are particularly preferably the same if the arcs of the surface sections 8 are folded onto the side of the respective straight line of the cylindrical surface N on which the arcs of the surface sections 10 run. This is the case in the exemplary embodiment.
- the tangent T 1 along which the radial height difference H D has the value "0", extends in the neutral cylinder jacket surface N.
- a mean web path does not change when the rotary body 6 makes a rotational adjustment movement about the stationary rotation axis D, for example from the rotational angular position of minimum ripple shown in FIG. 2 into the rotational angular position of maximum ripple shown in FIG.
- the middle path of the web W runs in each rotational angular position of the rotating body 6 on the neutral cylindrical surface N, which is for this reason referred to as "neutral".
- the rotary body 6 is a hollow body with a along its entire length extending, central, circular cylindrical bore 11. Extending through the bore a non-rotatably mounted on the machine frame hollow shaft 12. Der Rotary body 6 is rotatably mounted on the hollow shaft 12 about the rotation axis D.
- the fixed support of the hollow shaft 12 is designated in Fig. 4 with 16.
- the Adjusting rotational movement of the rotating body 6 relative to the hollow shaft 12 is motor causes by means of an electric motor 17, the over a declining Gear transmission 18 rotatably drives the rotating body 6.
- the motor 17 is the actuator a controller 19, the actuator 17 for the adjustment of the rotary body. 6 controls, for example, as described in EP 1 101 721 A1, in this respect in Reference is made.
- the rotary body 6 is used only for the purpose of adjustment, i. to change its acting on the web W surface contour, rosver Robinson. By the way, he will locked in the current print production via the gear 18 of the actuator 17.
- a central, axial bore 13 is continuously formed, the to serves to supply the rotary body 6 compressed air.
- the hollow axle has a Longitudinal opening 14.
- the rotary body 6 is provided with fluid channels 15, which are extend radially through the annular shell of the rotating body 6.
- Each of the fluid channels 15 is formed as a straight through hole, extending into the bore of the 11th formed inner cavity and on the outer surface of the shell Rotating body 6, i. on its surface, opens.
- the fluid channels 15 are in Circumferentially distributed around the rotation axis D of the rotating body 6 arranged. You can, for example, with the help of a laser in the ring of the Rotary body 6 are incorporated.
- the fluid channels 15 are also along the Rotary axis D arranged evenly distributed.
- the fluid channels 15 are connected via the hollow shaft 12 with a compressed air source.
- the Compressed air is introduced into the bore 13 of the hollow shaft 12 and passes over the Longitudinal opening 14 in the bore 11 and the fluid channels 15.
- the longitudinal opening 14th extends over a length sufficient, the fluid channels 15 over the entire axial Supply the length of the wave contour evenly with the compressed air.
- the longitudinal opening 14 is widened from the bore 13 to the outer shell surface of the hollow shaft 12 and covers in the circumferential direction more of the fluid channels 15. It opens and spreads towards the bottom of the looping web W.
- the compressed air thus passes through the bore 13 and the longitudinal opening 14 directly radially under the fluid channels 15, which are covered by the web W.
- a between the hollow shaft 12 and the Shell inner surface of the rotating body 6 formed annular gap preferably forms a Sealing gap to keep compressed air leakage as low as possible.
- Fig. 2 are due to the selected cross-sectional plane fluid channels 15 only in the Foot section 7 drawn the relevant cross section. Of course they are Fluid channels 15 in particular formed in the head portions 8, as shown in the Cross-section through the apex of a head portion 8 in Fig. 5 can be seen.
- FIGS. 7 to 14 each show a rotary body 6 of a second one Embodiment, by machining from a about its longitudinal axis rotationally symmetrical output body 6 ', Figure 6 shows, was obtained.
- the Figures 7 to 14 each show a view of an end face of this rotating body 6 and a view on its long side.
- the figures show the Rotation body 6 in a sequence of rotational angular positions, in which the rotating body 6 each in a step of 30 ° from the first position shown in FIG. 7 to that in FIG. 14 shown position is rotated by 180 °.
- FIGS. 10 and 11 the angular position is shown but the same.
- Fig. 6 shows a rotationally symmetrical with respect to the axis of rotation D output body 6 ', from which the adjustable rotary body 6 of the second embodiment was made.
- the output body 6 ' has along its axis of symmetry S everywhere the same, regular wave contour on its surface. He can, for example obtained by compression molding and sintering. Likewise he can from one circular cylindrical casting obtained by a material-removing machining become.
- the output body 6 'thus obtained is rotatably clamped in a subsequent operation about a parallel to the axis of symmetry S processing axis B rotatably.
- the axis of symmetry S is the central axis L 7 through the vertex circles of the foot sections 7, and the machining axis B is the central axis L 8 through the vertex circles of the head sections 8.
- the machining axis B therefore has the eccentricity "2e" with respect to the axis of symmetry S of the output body 6 '.
- the output body 6 ' is driven in rotation about the machining axis B.
- the Drehmeisel along the machining axis B is axially straight and moved radially to the machining axis B, so that after introduction of the bore 11 of the asymmetrical, adjustable rotary body 6 is obtained.
- Figure 6 is for the output body 6 'by way of example the division of its wave contour specified.
- the pitch is the distance between two measured in the axial direction adjacent vertices of the head portions 8 - and of course the same axial distance between two adjacent vertices of the foot sections 7. This distance or division is one quarter of the measured in the axial direction Width of a printing plate used in current print production.
- the wave contour of the rotating body 6, which was obtained from the starting body 6 ' is Of course, also a quarter of the printing form width.
- the rotational body 6 of the second exemplary embodiment has a wave contour that is uniformly uniform in the axial direction only along a single straight line along which the radial height differences H D have their maximum values.
- the wave contour with the maximum values of the radial height differences H D can be seen in the longitudinal views of FIGS. 7 and 14. Diametrically opposite creates a single, exact line on which consequently the minimum values of the radial height differences H D are again "zero". Over the circumference between these two straight lines, the wave contours in the axial direction in the apex regions of the head sections 8 have straight plateaus, as can be seen from FIGS. 8 to 13.
- the two inner circles drawn in the end views of FIGS. 7 to 14 are, on the one hand, the vertex circle of the foot sections 7 and, on the other hand, the vertex circle of the head sections 8. All cross sections which lie in the axial direction between the vertex circles of the foot sections 7 and the vertex circles of the head sections 8, deviate from the circular shape according to the manufacturing process.
- the transitions between the straight plateaus of the head sections 8 and the round foot sections 7 are preferably circular in the circumferential direction and axial direction by surface finishing, for example by grinding and polishing.
- the fluid channels 15 can only be incorporated into the asymmetric rotary body 6 have been. You can also after receipt of the starting body 6 'in this or, alternatively, they may already be incorporated into the straight cylindrical, smooth cast body may have been incorporated, if the Output body 6 'was obtained from, for example, such a body. Of the Starting body 6 'may instead, for example, by pressing and sintering have been received and already due to an appropriately set Material porosity form the fluid channels as pore channels.
- FIG. 15 shows such a rotary body which is used to distinguish it from FIG Reference numeral 60 is designated.
- the shape and arrangement of the fluid channels 15 in the longitudinal direction and in the circumferential direction of the rotation body 60 are the same as those of the variable rotation body 6.
- the rotary body 60 may be rotatably mounted to the friction with the reduce looping track. However, it is also completely sufficient and will even preferred if the rotary body 60 is not rotatable in the machine frame is stored.
- the symmetry and longitudinal axis is therefore not with D, but for Distinction of a rotation axis denoted by L. Incidentally, however, the same reference numerals as used in the variable rotation body 6.
- an air cushion or a cushion of another gas is not only advantageous in connection with a one-piece rotary body 6 or 60, but even with a rotational body of several axially juxtaposed Rolls and in principle also in other embodiments of rotary bodies.
- the adjustable or not can be adjustable, but the fluid loading of the invention having wave-shaped surface, reference is again made to EP 1 101 721 A1, which is also referred to in this regard.
Abstract
Description
- Fig. 1
- einen Druckturm mit einem Rotationskörper nach der Erfindung,
- Fig. 2
- den Rotationskörper in einer ersten Ausführung in einer ersten Drehwinkelposition in einem Querschnitt,
- Fig. 3
- den Rotationskörper in einer zweiten Drehwinkelposition in einem Querschnitt,
- Fig. 4
- den Rotationskörper in einer Längsansicht und teilweisem Längsschnitt und in einem Querschnitt,
- Fig. 5
- den Rotationskörper in einem weiteren Querschnitt,
- Fig. 6
- einen Ausgangskörper, aus dem durch eine materialabnehmende Bearbeitung ein Rotationskörper in einer zweiten Ausführung gebildet wird,
- Fig. 7-14
- den Rotationskörper der zweiten Ausführung in unterschiedlichen Drehwinkellagen, und
- Fig. 15
- einen Rotationskörper in einer dritten, vereinfachten Ausführung in einer Längsansicht und teilweisem Längsschnitt.
Claims (22)
- FanOut-Kompensator für eine Druckmaschine, der ein Rotationskörpergebilde (6; 60) umfasst, das entlang einer Längsachse (D; L) nebeneinander alternierend Fußabschnitte (7) und Kopfabschnitte (8) aufweist, die eine wellenförmige Oberfläche (9, 10) bilden, um eine zu bedruckende Bahn (W), die das Rotationskörpergebilde (6; 60) umschlingt, quer zu einer Förderrichtung der Bahn (W) wellenförmig zu verformen,
dadurch gekennzeichnet, dass
in dem Rotationskörpergebilde (6; 60) Fluidkanäle (15) gebildet sind, die an der Oberfläche (9, 10) des Rotationskörpergebildes (6; 60) münden,
und dass das Rotationskörpergebilde (6; 60) einen mit den Fluidkanälen (15) verbundenen Fluidanschluss (13, 14; 11) aufweist, um ein Druckfluid zu den Fluidkanälen (15) und durch die Fluidkanäle (15) an die Oberfläche (9, 10) des Rotationskörpergebildes (6; 60) zu führen. - FanOut-Kompensator nach Anspruch 1, dadurch gekennzeichnet, dass das Rotationskörpergebilde (6; 60) einen inneren Hohlraum (11) aufweist, in den die Fluidkanäle (15) münden.
- FanOut-Kompensator nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sämtliche Fluidkanäle (15) oder ein Teil der Fluidkanäle Bohrungen sind.
- FanOut-Kompensator nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Fluidkanäle durch Materialporosität gebildet werden.
- FanOut-Kompensator nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Rotationskörpergebilde (6) auf einer Hohlachse (12) drehgelagert oder auf einer Hohlwelle verdrehgesichert befestigt ist und die Hohlachse (12) oder Hohlwelle den Fluidanschluss (13, 14) bildet, so dass das Fluid durch die Hohlachse (12) oder Hohlwelle den Fluidkanälen (15) zuführbar ist.
- FanOut-Kompensator nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass ein Mantel der Hohlachse (12) oder Hohlwelle von einer Längsöffnung (14) durchbrochen wird, die sich in radialer Richtung unmittelbar zu einem in Längsrichtung erstreckten, von Fluidkanälen (15) in radialer Richtung durchzogenen, streifenförmigen Bereich des Rotationskörpergebildes (6) öffnet.
- FanOut-Kompensator nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Fußabschnitte (7) und die Kopfabschnitte (8) relativ zueinander um die Längsachse (D; L) des Rotationskörpergebildes (6; 60) nicht verdrehbar sind.
- FanOut-Kompensator nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass das Rotationskörpergebilde (6; 60) die Fußabschnitte (7) und Kopfabschnitte (8) in einem Stück bildet.
- Rotationskörpergebilde nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Kopfabschnitte (8) um radiale Höhendifferenzen (HD) über die Fußabschnitte (7) vorstehen und die radialen Höhendifferenzen (HD) von Minimalwerten, die sie entlang einer zu der Längsachse (D) parallel versetzten ersten Gerade (T1) aufweisen, in Umfangsrichtung bis zu Maximalwerten, die sie entlang einer zu der Längsachse (D) parallel versetzten zweiten Geraden (T2) aufweisen, zunehmen.
- FanOut-Kompensator nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass die Minimalwerte gleich, vorzugsweise gleich "Null" sind.
- FanOut-Kompensator nach einem der zwei vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Maximalwerte gleich sind.
- FanOut-Kompensator nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Fußabschnitte (7) nach radial auswärts konkave Oberflächenabschnitte (9) bilden, die in Axialrichtung vorzugsweise stetig differenzierbar sind.
- FanOut-Kompensator nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Kopfabschnitte (8) nach radial einwärts konkave Oberflächenabschnitte (10) bilden, die in Axialrichtung vorzugsweise stetig differenzierbar sind.
- Rotationskörper nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die in Umfangsrichtung um die Längsachse (D) sich ändernden radialen Höhendifferenzen (HD) in Umfangsrichtung um die Längsachse (L) stetig, vorzugsweise stetig differenzierbar, sind.
- FanOut-Kompensator nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die in Umfangsrichtung um die Längsachse (D) sich ändernden radialen Höhendifferenzen (HD) entlang von Tangenten (T1, T2, die die Kopfabschnitte (8) berühren und zu der Längsachse (D) parallel sind, gleich sind.
- FanOut-Kompensator nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Fußabschnitte (7) und die Kopfabschnitte (8) Oberflächenabschnitte (9, 10) bilden, die an einer neutralen Kreiszylindermantelfläche (N) aneinanderstoßen, und dass die Längsachse (D; L) des Rotationskörpergebildes (6; 60) eine Mittellängsachse der neutralen Kreiszylindermantelfläche (N) ist.
- FanOut-Kompensator nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass die Fußabschnitte (7) radial unter der neutralen Kreiszylindermantelfläche (N) und die Kopfabschnitte (8) radial über der neutralen Kreiszylindermantelfläche (N) in Axialrichtung Bögen einer Oberflächen-Wellenkontur des Rotationskörpergebildes (6; 60) bilden und dass in jedem die Längsachse (D; L) einschließenden Axialschnitt des Rotationskörpergebildes (6) die von den Fußabschnitten (7) gebildeten Bögen die gleiche Form haben wie die von den Kopfabschnitten (8) gebildeten Bögen, wenn die von den Fußabschnitten (7) gebildeten Bögen auf die Seite der von den Kopfabschnitten (8) gebildeten Bögen geklappt werden.
- FanOut-Kompensator nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Rotationskörpergebilde (6; 60) in einer Druckmaschine zwischen einem vorgeordneten Druckspalt (2) und einem nachgeordneten Druckspalt (3), in denen die in einer Druckproduktion durchlaufende Bahn (W) hintereinander bedruckt wird, zu einer Seite der Bahn (W) angeordnet ist und von der Bahn (W) umschlungen wird.
- FanOut-Kompensator nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Rotationskörpergebilde (6) für eine gesteuerte oder geregelte Verstelldrehbewegung um seine Längsachse (D) mit einem Stellglied (17) einer Steuerungs- und Regelungseinrichtung (17, 18, 19) verbunden ist.
- FanOut-Kompensator nach einem der Ansprüche 1 bis 18, dadurch gekennzeichnet, dass das Rotationskörpergebilde (60) in einem Gestell einer Druckmaschine um seine Längsachse (L) nicht verdrehbar befestigt ist.
- FanOut-Kompensator nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass das Rotationskörpergebilde (60) in Bezug auf seine Längsachse (L) rotationssymmetrisch ist.
- Verfahren für eine Kompensation des FanOut in einer Druckmaschine, bei dema) die Bahn (W) in einem ersten Druckspalt (2) und anschließend in einem zweiten Druckspalt (3) je mit Druckfarbe bedruckt und vorzugsweise mit Feuchtmittel befeuchtet wird,b) und bei dem die Bahn (W) zwischen den Druckspalten (2, 3) ein Rotationskörpergebilde (6; 60) umschlingt, das eine Oberfläche (9, 10) aufweist, die quer zu einer Förderrichtung der Bahn (W) wellenförmig ist, so dass die Bahn (W) quer zu der Förderrichtung wellenförmig verformt wird,
dadurch gekennzeichnet, dassc) die Bahn (W) bei der Umschlingung an ihrer dem Rotationskörpergebilde (6; 60) zugewandten Unterseite mit einem Druckfluid beaufschlagt wird, das an der Oberfläche (9, 10) des Rotationskörpergebildes (6; 60) austritt, so dass zwischen der wellenförmigen Oberfläche (9, 10) des Rotationskörpergebildes (6; 60) und der Bahn (W) ein Fluidspalt erzeugt und aufrechterhalten wird.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10225199 | 2002-06-06 | ||
DE10225199A DE10225199B4 (de) | 2002-06-06 | 2002-06-06 | Fluidbeaufschlagter FanOut-Kompensator |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1369369A1 true EP1369369A1 (de) | 2003-12-10 |
EP1369369B1 EP1369369B1 (de) | 2006-01-04 |
Family
ID=29432681
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03405400A Expired - Lifetime EP1369369B1 (de) | 2002-06-06 | 2003-06-03 | Fluidbeaufschlagter FanOut-Kompensator |
Country Status (7)
Country | Link |
---|---|
US (1) | US6729232B2 (de) |
EP (1) | EP1369369B1 (de) |
JP (1) | JP2004066808A (de) |
AT (1) | ATE314993T1 (de) |
DE (2) | DE10225199B4 (de) |
DK (1) | DK1369369T3 (de) |
ES (1) | ES2254898T3 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005048246B4 (de) * | 2005-10-07 | 2009-09-10 | Maschinenfabrik Wifag | Rotationsdruckmaschine mit Längendehnungs-Kompensator und Verfahren zum Bedrucken einer längsgeschnittenen Bahn |
FR2964343A1 (fr) * | 2010-09-07 | 2012-03-09 | Goss Int Montataire Sa | Ensemble d'impression et utilisation correspondante |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10359113A1 (de) * | 2003-12-17 | 2005-07-21 | Voith Paper Patent Gmbh | Breitstreckvorrichtung |
DE102004007378B4 (de) * | 2004-02-16 | 2007-03-01 | Koenig & Bauer Ag | Vorrichtungen zur Beeinflussung der Breite und/oder Lage einer Bahn |
JP2017078826A (ja) * | 2015-10-22 | 2017-04-27 | コニカミノルタ株式会社 | 画像形成装置及び画像形成システム |
CN115724262A (zh) * | 2021-08-31 | 2023-03-03 | 宁德时代新能源科技股份有限公司 | 辊组件、电池单体的制造设备及辊的调节方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0838420A2 (de) * | 1996-10-25 | 1998-04-29 | KOENIG & BAUER-ALBERT AKTIENGESELLSCHAFT | Vorrichtung zur Korrektur des Fan-Out-Effektes an Rollenrotationsdruckmaschinen |
US6021713A (en) * | 1996-10-25 | 2000-02-08 | Koening & Bauer Aktiengesellschaft | Arrangement for correcting the fan-out effect on web-fed printing presses |
EP1101721A1 (de) | 1999-11-16 | 2001-05-23 | Maschinenfabrik Wifag | Rotationskörpergebilde für eine Bahnbreitenkorrektur |
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US4696230A (en) * | 1986-09-25 | 1987-09-29 | Barkley Corporation | Adjustable bustle-forming apparatus for maintaining registration of multicolor images on printing webs |
US5553542A (en) * | 1991-11-06 | 1996-09-10 | Rockwell International Corporation | System for controlling a web in a printing press |
US5347928A (en) * | 1992-10-29 | 1994-09-20 | Sakurai Graphic Systems Corporation | Plate clamping unit for offset press |
US5365847A (en) * | 1993-09-22 | 1994-11-22 | Rockwell International Corporation | Control system for a printing press |
DE4435429C2 (de) * | 1994-10-04 | 2000-07-06 | Wifag Maschf | Rollenrotationsdruckmaschine |
JP2964238B2 (ja) * | 1998-03-06 | 1999-10-18 | 株式会社東京機械製作所 | オフセット印刷機構及びこの印刷機構を有するオフセット印刷機 |
US6186064B1 (en) * | 1998-05-22 | 2001-02-13 | Heidelberger Druckmaschinen Ag | Web fed rotary printing press with movable printing units |
US6082261A (en) * | 1999-03-10 | 2000-07-04 | Heidelberger Druckmaschinen Ag | Narrow-gap plate cylinder with plates attached to partially cylindrical shells |
US6553908B1 (en) * | 2000-09-29 | 2003-04-29 | Heidelberger Druckmaschinen Ag | Web fanout control system |
-
2002
- 2002-06-06 DE DE10225199A patent/DE10225199B4/de not_active Expired - Fee Related
-
2003
- 2003-05-30 JP JP2003154661A patent/JP2004066808A/ja active Pending
- 2003-06-03 ES ES03405400T patent/ES2254898T3/es not_active Expired - Lifetime
- 2003-06-03 EP EP03405400A patent/EP1369369B1/de not_active Expired - Lifetime
- 2003-06-03 DE DE50302117T patent/DE50302117D1/de not_active Expired - Fee Related
- 2003-06-03 DK DK03405400T patent/DK1369369T3/da active
- 2003-06-03 AT AT03405400T patent/ATE314993T1/de not_active IP Right Cessation
- 2003-06-05 US US10/455,073 patent/US6729232B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0838420A2 (de) * | 1996-10-25 | 1998-04-29 | KOENIG & BAUER-ALBERT AKTIENGESELLSCHAFT | Vorrichtung zur Korrektur des Fan-Out-Effektes an Rollenrotationsdruckmaschinen |
US6021713A (en) * | 1996-10-25 | 2000-02-08 | Koening & Bauer Aktiengesellschaft | Arrangement for correcting the fan-out effect on web-fed printing presses |
EP1101721A1 (de) | 1999-11-16 | 2001-05-23 | Maschinenfabrik Wifag | Rotationskörpergebilde für eine Bahnbreitenkorrektur |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005048246B4 (de) * | 2005-10-07 | 2009-09-10 | Maschinenfabrik Wifag | Rotationsdruckmaschine mit Längendehnungs-Kompensator und Verfahren zum Bedrucken einer längsgeschnittenen Bahn |
FR2964343A1 (fr) * | 2010-09-07 | 2012-03-09 | Goss Int Montataire Sa | Ensemble d'impression et utilisation correspondante |
EP2457730A1 (de) * | 2010-09-07 | 2012-05-30 | Goss International Montataire SA | Druckeinheit und entsprechende Anwendung |
Also Published As
Publication number | Publication date |
---|---|
US20030226459A1 (en) | 2003-12-11 |
EP1369369B1 (de) | 2006-01-04 |
US6729232B2 (en) | 2004-05-04 |
DE50302117D1 (de) | 2006-03-30 |
DE10225199B4 (de) | 2004-05-06 |
ES2254898T3 (es) | 2006-06-16 |
ATE314993T1 (de) | 2006-02-15 |
JP2004066808A (ja) | 2004-03-04 |
DK1369369T3 (da) | 2006-05-15 |
DE10225199A1 (de) | 2004-01-08 |
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