EP2223806A1 - Dispositif et procédé d'écartement de bandes se déroulant dans le sens transversal par rapport à l'axe longitudinal d'une presse d'impression rotative - Google Patents

Dispositif et procédé d'écartement de bandes se déroulant dans le sens transversal par rapport à l'axe longitudinal d'une presse d'impression rotative Download PDF

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Publication number
EP2223806A1
EP2223806A1 EP09153762A EP09153762A EP2223806A1 EP 2223806 A1 EP2223806 A1 EP 2223806A1 EP 09153762 A EP09153762 A EP 09153762A EP 09153762 A EP09153762 A EP 09153762A EP 2223806 A1 EP2223806 A1 EP 2223806A1
Authority
EP
European Patent Office
Prior art keywords
web
partial
deflecting
deflection
structures
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.)
Withdrawn
Application number
EP09153762A
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German (de)
English (en)
Inventor
Daniel Buri
Bernhard Muth
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wifag Maschinenfabrik AG
Original Assignee
Wifag Maschinenfabrik AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wifag Maschinenfabrik AG filed Critical Wifag Maschinenfabrik AG
Priority to EP09153762A priority Critical patent/EP2223806A1/fr
Publication of EP2223806A1 publication Critical patent/EP2223806A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/32—Arrangements for turning or reversing webs
    • 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
    • B41F13/06—Turning-bar arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/54—Auxiliary folding, cutting, collecting or depositing of sheets or webs
    • B41F13/56—Folding or cutting
    • B41F13/58—Folding or cutting lengthwise
    • 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
    • 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
    • B65H23/032—Controlling transverse register of web
    • B65H23/038—Controlling transverse register of web 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
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/414—Winding
    • B65H2301/4148—Winding slitting
    • 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
    • B65H2404/15—Roller assembly, particular roller arrangement
    • B65H2404/152—Arrangement of roller on a movable frame
    • B65H2404/1521—Arrangement of roller on a movable frame rotating, pivoting or oscillating around an axis, e.g. parallel to the roller axis
    • B65H2404/15212—Arrangement of roller on a movable frame rotating, pivoting or oscillating around an axis, e.g. parallel to the roller axis rotating, pivoting or oscillating around an axis perpendicular to the roller axis

Definitions

  • the invention relates to a arranged for spreading of side webs running partial webs web press and a method for spreading these partial webs. It relates in particular to the offset printing of newspapers, preferably the printing of large newspaper editions.
  • web-fed rotary presses are required that can produce print products of different formats.
  • the machines are to be able to print on webs of different widths and process them to the respective required printed product.
  • the printing presses are designed for a printing format of maximum width and correspondingly for the processing of webs of a maximum width for the respective machine.
  • narrower webs are processed. If webs of different widths are cut longitudinally in different productions, the longitudinal cut must be offset laterally, transversely to the running direction of the web.
  • longitudinal folding devices usually folding formers, must be adjusted laterally or the partial webs obtained by the longitudinal section must be spread apart from one another so that they run centrally on the longitudinal folding devices.
  • the former possibility, the lateral adjustment of Leksfalz coupleden is, for example, in the WO 2005/105447 A1 described.
  • the DE 100 23 169 A1 deals with the other possibility, the spreading.
  • the adjustment of the Leksfalz coupleden is problematic in terms of the required accuracy and because of the effort that is to operate in case of inaccurate setting for the readjustment.
  • the spreading devices known from the prior art for example the spreading device of DE 100 23 169 A1 , are additional devices that are only for spreading serve. The spreaders must be made precisely to ensure a clean, defined web guide, they represent a not inconsiderable cost factor and take up space.
  • the invention relates to a web-fed rotary printing press comprising at least the following components: a roll stand for receiving a roll of a starting web, a cutting device for longitudinal cutting of the starting web in at least two partial webs, which are also referred to as first part web and second part web, and one Printing cylinder and a counter-pressure cylinder, which together form a pressure nip, and a longitudinal folding device for longitudinal folding of the partial webs.
  • the longitudinal folding device preferably comprises a plurality of longitudinal folding units, for example one for the first partial web and another for the second partial web, the plurality of longitudinal folding units together are understood as a functional component.
  • the single longitudinal folding unit or the plurality of longitudinal folding units are each preferably formed as a folding hopper.
  • the cutting device can be arranged in the running direction of the starting web or of the part webs either upwards or downwards of the printing gap, in order to cut the initial web either already before or only after the printing in the part webs. It is also possible for a cutting device to be arranged upwards and a further cutting device to be arranged downwards of the printing gap. In the nip, the original web can or may accordingly be printed uncut or already the partial webs obtained by longitudinal cutting.
  • the printing machine is of the type with transversely to the printing nip, ie transversely to each circumferential direction of the printing cylinder forming the printing nip and thus aligned transversely to the machine longitudinal direction roll stand or transversely to the printing nip aligned L jossfalz liked.
  • the word “or” is here as well as otherwise of the invention in the usual logical sense as “inclusive or” used, so includes both the meaning of "either ... or” as well as the meaning of "and”, as far as from the each concrete context can not yield a single one of the two meanings.
  • roller stand In a second variant of the roller stand is aligned in a circumferential direction of the impression cylinder, the axis of rotation of the roller parallel to the printing nip, while the L Lucassfalz coupled is aligned transversely to the nip, so that the printed sub-webs are deflected downward by the pressure in a direction transverse to the nip and in this transverse direction run on the Lssensfalz liked.
  • both the roll stand and the longitudinal folding device are aligned transversely to the printing gap, so that turning-like or in a complete turn resulting deflection operations must be performed up and down from the printing nip.
  • the at least one transversely oriented component is preferably aligned orthogonal to the printing gap, but in principle can also be aligned obliquely with an inclination of greater than 0 ° and less than 90 ° to the printing nip. If the roll stand oriented transversely, this means that the axis of rotation of the roll in a vertical plan view of the printing press at an angle greater than 0 ° and at most, preferably exactly 90 ° facing the axes of rotation of the printing cylinder, so that the output web or the partial webs a piece Run far in one direction, which has at least one directional component parallel to the axes of rotation of the printing cylinder.
  • the longitudinal folding device is oriented transversely, the partial webs run in one direction onto the longitudinal folding device, which has at least one directional component parallel to the axes of rotation of the printing cylinder, whereby a transverse orientation orthogonal to the printing gap is also preferred for the longitudinal folding device.
  • the printing machine further comprises a first deflection structure, which can be wrapped around by the first partial path, and a second deflection structure, which can be wrapped around by the second partial path.
  • These at least two deflection structures are arranged on the path of the partial webs between the at least one transversely oriented component, the roll stand or the longitudinal folding devices, and the printing nip to the partial webs in the case of the transverse orientation of the roll stand on the printing nip, ie in one of the circumferential directions the cylinder forming the printing nip, and in the case of the transverse orientation of the longitudinal folding means, deflecting from one of the circumferential directions of the printing cylinders in the transverse direction.
  • the redirecting can be done in several steps. However, this would require at least one further deflection structure per partial web.
  • the partial webs therefore preferably wrap around the deflecting structures in the printed production at such a wrap angle that they can be moved from the transverse direction in the circumferential or rotational direction of the web alone by the deflection which the first partial web passes through the first deflecting structure and the second partial web through the second deflecting structure Cylinder or be deflected from the cylinder circumferential direction in the transverse direction.
  • the deflection structures are therefore wrapped in a preferred embodiment in the current production each with a wrap angle of 180 °.
  • the deflecting structures are offset or displaceable relative to each other in the running direction of the partial webs running on the deflecting structures, so that the partial webs running away from the deflecting structures in the staggered state of the deflecting structures in a plan view of the up and running partial webs have a different, preferably larger, lateral one another Have distance as at the place where one of the partial webs runs on the respect to the direction of the incoming partial webs auficartigere the deflection. Due to the offset in the direction of running one of the partial webs on the more upwardly of the deflection structures, while the other of the partial webs in addition to the already accumulating partial web continues to run in its direction.
  • the partial webs are spread.
  • the deflecting structures together form a spreading device for the two partial webs in such an embodiment. If the lateral distance in a print production is reduced by the tuned deflection operation, the deflection structures allow the Magnification in another print production, they are still understood together as a spreader.
  • the invention makes use of the design of the web-fed rotary printing press to laterally align the partial webs by spacing variation on the longitudinal folding device.
  • a printing press with a roll stand aligned transversely to the printing or a longitudinal folding device oriented transversely to the printing the part webs must be deflected from the transverse direction into a running direction orthogonal to the printing nip or from such a running direction in the transverse direction. Since this deflection operation is necessary in each of the partial webs of home, the invention for changing the lateral distance of the partial webs requires no additional spreader or adjustable L jossfalz coupleden, but arranges the anyway for this change in the direction of the deflection structures relative to each other with an offset.
  • the two deflecting perform a dual function, on the one hand, the function of the input or discharge of the partial webs in or out of the axes of rotation of the printing cylinder orthogonal (n) direction and on the other hand, the function of the change in distance, preferably for the purpose of lateral alignment on the longitudinal folding.
  • the deflection structures partial webs of a starting web whose width is smaller than the nominal widths, which is therefore narrower than a web of the maximum width, the nominal width, which can be processed by the printing press, can be aligned by spreading on the longitudinal folding device.
  • the single or multiple longitudinal folding unit (s) of the longitudinal folding device may or may be fixed relative to the frame of the printing machine, the plurality may be arranged in a fixed lateral spacing adapted to the nominal width and need not be adjusted for processing a narrower original web ,
  • the deflection structures according to the invention are arranged between the roll stand and the printing nip.
  • they are arranged between the pressure nip and the longitudinal folding device.
  • the inventively arranged or adjustable in an inventive arrangement can Deflection structures be arranged either between the roll stand and the pressure nip or between the nip and the Lssensfalz adopted.
  • deflecting structures corresponding to the invention may be arranged between the press nip and the longitudinal folding device in the third variant between the roll stand and the printing nip and the invention corresponding further deflecting structures.
  • the deflection and displacement operation combined for the alignment on the longitudinal folding device can either be carried out alone upwards of the printing gap or alone downwards of the printing gap or split into two partial operations by a first deflection and displacement operation according to the invention by means of the deflection structures upwards from the printing gap and a further deflection and Versetzoperation according to the invention is carried out downward from the nip and causes the resulting from both operations change of the lateral distance, the exact lateral alignment with the L jossfalz liked.
  • the deflection and Versetzoperation invention ie the input or Ausschleußen in or out of the pressure nip orthogonal (n) direction in combination with the change in distance, not only in realization of the third variant, but in all variants in several, for example, two deflection - and Versetzoperationen be performed, which are carried out in the running direction of the partial webs upwards or downwards from the printing nip.
  • At least two further deflecting structures can also be arranged upward from the printing nip in the manner according to the invention, in order to change the spacing between the partial webs successively in the several deflection and displacement operations .
  • only a single deflection and displacement operation of the type according to the invention is carried out upwards or downwards from the pressure gap.
  • the deflecting structures are preferably looped around by the respective partial web with an angle of wrap of at least substantially 180 °, so that the respective partial web runs in one plane from the deflection structure assigned to it which is parallel to the plane of curling onto the same deflecting structure ,
  • an advantage of the spreading by turning operations is the clean web guide due to the large compared to the conventional spreaders angles over which the partial webs wrap around the deflecting or basically wrap around.
  • the first deflecting structure or the second deflecting structure is or can be adjusted in further developments relative to a frame of the printing press.
  • both the first deflecting structure and the second deflecting structure are adjustable for adjusting the lateral spacing.
  • at least one of the deflecting structures is adjustable by the respective deflection structure is released by hand and fixed in a respect to the direction of the incoming partial web new position.
  • a motorized adjustment device by means of which the respective deflection structure is automatically adjusted during the changeover from one web width to another.
  • the different adjustment positions are preferably predetermined, with manual adjustability mechanically as mounting positions and in the case of motor adjustment suitably control technology.
  • the motor adjustment can be carried out in particular pneumatically or even more preferably electrically.
  • the at least one adjustable deflecting structure is preferably mounted linearly movable, particularly preferably linearly movable in the web plane of the incoming partial web. In the preferred embodiments, in which the other deflection structure is adjustable, preferably motor, this also applies mutatis mutandis to the other deflection structure.
  • the deflection axes formed by the deflecting structures for the partial webs in one of the at least two different adjustment states of the adjustable Deflecting structure aligned with each other, so form a single deflection axis continuously for the sub-webs.
  • the at least two deflecting structures are shaped identically at least on the outer circumference, so that not only the deflecting axes, but in the stated adjusting state the deflecting structures are aligned with each other as such.
  • the deflection structures are cylindrical. In the aligned arrangement, they can be looped around by the partial webs, without thereby changing the distance between the partial webs.
  • the deflecting structures in the adjustment state of the aligned arrangement of a not yet longitudinally cut output track looped and the output web can be turned from the transverse direction in one of the circumferential directions of the impression cylinder or from one of the circumferential directions in the transverse direction.
  • the original web would accordingly be cut longitudinally into the partial webs only after this deflection operation, preferably a turning operation.
  • the deflection axes formed by the deflection structures relative to each other have the offset "zero".
  • the partial webs are obtained from the broader original web by longitudinal section. If, for example, the original web is only cut once longitudinally and thus only two partial webs are produced, these partial webs at the location where the one of the component webs runs on the more upright of the deflecting structures have a lateral distance of virtually "zero" in plan view from one another. At the location where the other sub-webs run from the downward deflection structure, the sub-webs are preferably spread apart from each other and accordingly have a greater lateral distance from each other than at the location at which the one of the sub-webs runs on the upwardly diverting structure.
  • Partial webs must not have been generated in all circumstances by longitudinal section of the same original web.
  • partial webs that can be processed by the device according to the invention may have been obtained from different starting webs by longitudinal section.
  • partial web merely states that, in addition to a web designated in this way, a further partial web can pass through the same printing nip.
  • the partial webs may in particular be of equal width, but in principle also of different widths.
  • the longitudinal section can be carried away from the spreader comprising at least the first and the second deflecting structure.
  • the longitudinal section can be carried away from the spreader comprising at least the first and the second deflecting structure.
  • the partial webs can be printed for example between the cutting device and the spreading device.
  • the cutting device of the spreader is directly assigned by being arranged immediately in front of the spreader and at most one or more redirecting operation (s) between the cutter and the spreader.
  • FIG. 1 shows in orthogonal plan view of a spreading device 10 for two in a running direction Q immediately adjacent to each other on the spreader 10 running partial webs, a first partial web B 1 and a second partial web B 2nd
  • the partial webs B 1 and B 2 were obtained from a wider initial web by longitudinal cutting by means of a longitudinal cutting device 3, which is arranged with respect to the running direction Q upwards of the spreader 10.
  • the spreader 10 comprises a first deflecting structure 11 for the first partial web B 1 and a second deflecting structure 12 for the second partial web B 2 .
  • the deflecting structures 11 and 12 can be looped around by the respectively associated partial web B 1 or B 2 and in each case form a deflection axis for the respective partial web B 1 or B 2 .
  • the two deflection axes are inclined ⁇ to the running direction Q at the same inclination angle ⁇ , thus extending obliquely to the running direction Q.
  • the deflecting structures 11 and 12 direct the partial webs B 1 and B 2 in accordance with the inclination ⁇ and the angle of the looping from the running direction Q into one new running direction T.
  • the inclination angle ⁇ in the exemplary embodiment is 45 °
  • the wrap angle is 180 ° for each of the partial webs B 1 and B 2 .
  • the partial webs B 1 and B 2 are thus turned by the looping of the deflection structures 11 and 12 and deflected in the plan view of the up-and-running partial webs B 1 and B 2 at right angles in the new direction T.
  • the deflecting structures 11 and 12 act as turning structures.
  • the deflecting structures 11 and 12 are non-rotatable, narrow turning bars, on the circumferential surface of which air is preferably blown out in order to prevent or at least reduce frictional contact in the wrapping for the partial webs B 1 and B 2 .
  • the deflection structures 11 and 12 could also be formed, for example, as guide rollers rotatably mounted about the respective deflection axis.
  • the deflecting structures 11 and 12 are equal to one another over their circumference, at least over their longitudinal section which can be looped around by the associated partial web B 1 or B 2 .
  • the deflecting structures 11 and 12 take in FIG. 1 relative to each other a neutral position, the spreader 10 thus assumes an initial state in which their deflection axes are aligned with each other and because of the same shape circumference and the looped longitudinal portions of the deflecting 11 and 12 form a common flight.
  • the deflection structures 11 and 12 can also be wrapped in the initial state of a wider output track together and deflect them from the running direction Q in a new direction, in particular in the direction T turn.
  • the partial webs B 1 and B 2 run side by side with the same lateral distance x, with which they also run onto the deflection structures 11 and 12.
  • the distance x results from the longitudinal cutting and is almost "zero".
  • the in FIG. 1 The situation is based on the assumption that the initial web from which the partial web B 1 and B 2 were obtained has a maximum width for the respective web-fed rotary printing press, ie the nominal width to which the machine is designed.
  • the spreader 10 is adjusted. The adjustment is made so that the partial webs obtained from such a narrower original web by the longitudinal section have a larger lateral distance x from each other when running off the deflecting structures 11 and 12 than during emergence, the partial webs B 1 and B 2 are spread apart from one another.
  • FIG. 2 shows the spreader 10 after adjustment in an adjustment state.
  • the deflecting structures 11 and 12 are mounted relative to each other and in each case also relative to a frame of the printing press movable and thereby adjustable.
  • the deflection structure 11 is linearly movable parallel to itself and parallel to the plane of the incoming partial web B 1 .
  • the deflection structure 12 is also linearly movable parallel to itself and parallel to the plane of the incoming partial web B 2 .
  • the still parallel deflection axes are offset in the adjustment position in the direction Q to each other.
  • the partial webs B 1 and B 2 running out of the looping in the new running direction T accordingly have between them a larger lateral distance x than at the location at which the part web B 1 runs on the deflecting structure 11 which is more upright in the example.
  • the deflecting structures 11 and 12 have been displaced by the same distances compared to the initial state, the neutral position in which the deflection axes are aligned, the deflecting structure 11 in the direction -Q and the deflecting structure 12 in the direction Q, so that the partial webs B 1 and B 2 are offset by x / 2 in relation to the longitudinal section at 3, the partial web B 1 with respect to the new direction T to the right and the partial web B 2 to the left.
  • the spreader 10 acts as Wendesp Dr Road
  • FIG. 3 shows the spreader 10 in an arrangement between a roll stand 1 and an upward of several successive printing nips.
  • the printing gaps are each formed by a printing cylinder 4 and an impression cylinder 5.
  • the cylinders 4 and 5 are transfer cylinders, each of which is associated with at least one forme cylinder in order to transmit color to the associated transfer cylinder 4 or 5, as shown in the image.
  • the web-fed rotary printing press may in particular be a newspaper offset printing press which preferably operates in wet offset.
  • the roll stand 1 is aligned transversely to the printing gaps of the printing cylinders 4 and 5 and, accordingly, transversely to the axes of rotation of the printing cylinders 4 and 5.
  • the starting web B therefore unwound from its roll 2 received in the roll stand 1 in a running direction Q, which points transversely to the printing gaps according to the orientation of the roll stand 1 and is therefore referred to below as the transverse direction Q.
  • the axis of rotation of the roller 2 extends orthogonal to the axes of rotation of the impression cylinder 4 and 5.
  • the output web B is deflected from the transverse direction Q in the direction T of the impression cylinder 4 and 5, in the exemplary embodiment by way of a turning operation as described of the FIG. 1 explained.
  • the original web B wraps around with its entire width located in the neutral position and thus aligned with one another deflecting structures 11 and 12, whereby they in the for Transverse direction Q orthogonal new running direction T is turned, which is a circumferential direction of the pressure cylinders 4 and 5 and thus has orthogonal to the pressure gaps.
  • the deflected path B is deflected again via a spreader 10 downstream diverter, and then runs vertically upwards in the most upward pressure nip of the pressure tower in a stacked pressure cylinders 4 and 5.
  • the said deflection extends orthogonal to the direction T, so that at the Alignment on the most upward pressure nip is not changed by this diversion.
  • the web B is printed successively in several colors in the several printing gaps.
  • FIG. 4 shows the same arrangement as FIG. 3 , however, a roll 2 of a starting web B is received in the roll stand 1, whose width is less than the nominal width.
  • the web B is cut between the roller 2 and the spreader 10 along the two partial webs B 1 and B 2 .
  • the partial webs B 1 and B 2 are aligned by wrapping the deflecting structures 11 and 12 in the new running direction T on the pressure gaps.
  • the spreader 10 is in the adjustment of the FIG. 2 , So that the running of the deflecting structures 11 and 12 partial webs B 1 and B 2 as to FIG.
  • the spreader 10 directs the partial webs B 1 and B 2 by turning on the one hand to the pressure column and the other at the same time by the spreading on the downstream Leksfalzappelen 7 and 8.
  • the Figures 1 and 2 show the spreader 10 only isolated, extracted from the arrangement of FIGS. 3 and 4 ,
  • FIGS. 5 and 6 show the spreader 10 of Figures 1 and 2 in an arrangement between a downmost of a plurality of printing nips, in each of which a starting web B is printed successively in different colors, and a longitudinal folding device with longitudinal folding units 7 and 8 arranged downwardly from this printing nip, preferably folding hoppers.
  • the L jossfalzüen 7 and 8 are like the role stand 1 of the arrangement of FIGS. 3 and 4 aligned transversely to the pressure nips.
  • FIG. 5 is a starting web B of the nominal width by means of the printing cylinder 4 and 5 printed on both sides, after printing by means of a downwardly arranged from the downward pressure nip longitudinal cutting device 6 in a first partial web B 1 and a second partial web B 2 cut longitudinally.
  • the partial webs B 1 and B 2 are by means of the spreader 10, 10 of the spreader Figures 1 and 2 corresponds, turned and a Leksfalz Surprise 7, 8 supplied.
  • the spreader 10 is located in the basis of the FIG. 1 explained initial state. Downstream of the spreader 10, a turning device with two parallel turning bars 15 and 16 is arranged.
  • either the partial web B 1 on the partial web B 2 or the partial web B 2 can optionally be turned on the partial web B 1 and swept, so that after turning and sweeping superimposed partial webs B 1 and B 2 in a Sectionbahnstrang by means of each one of the longitudinal folding devices 7 and 8 can be folded longitudinally.
  • the partial web B 2 is turned to the partial web B 1 and swept and folded along with this common in the web strand by means of Lssensfalz liked 7.
  • partial webs B 1 and B 2 can alternatively be side by side and optionally combined with other partial webs to each a web strand and run on the Leksfalz Hughes 7, 8, the partial web B 1 on the Leksfalzappel 7 and the Partial web B 2 on the longitudinal folding unit. 8
  • FIG. 6 shows the pressure on a starting web B, which has a smaller width than the nominal width. Therefore, the partial webs B 1 and B 2 obtained from this web B by longitudinal section in 6 are not only from the running direction T, a circumferential direction of the impression cylinder 4 and 5, is deflected in the transverse direction Q but spread by means of the spreading device 10, so that they are also be aligned with the positions that have the L Lucassfalztechniken 7 and 8 along an orthogonal to the transverse direction Q axis.
  • the spreader 10 therefore assumes the VerstellDirect, as he said on the basis of FIG. 2 has been described, so that the partial webs B 1 and B 2 when running from the deflecting structures 11 and 12 from each other have the increased distance x.
  • the sub-web B 2 is exemplarily turned back to the sub-web B 1 and swept and in Operabahnstrang along with this longitudinally folded by means of the longitudinal folding device 7.
  • the spreader 10 corresponds to the spreader 10 of Figures 1 and 2 so that reference can be made to the statements there.
  • the deflecting structures 11 and 12 are adjusted accordingly not in the opposite directions Q and -Q, but in the opposite directions T and -T.
  • FIG. 7 shows a spreader 10 for three partial webs B 1 , B 2 and B 3rd
  • the spreader 10 is derived from the spreader 10 for two partial webs. It comprises, in addition to the deflecting structure 11 for the first partial web B 1 and the deflecting structure 12 for the second partial web B 2, a third deflecting structure 13 for the third partial web B 3 .
  • the partial web B 3 runs between the partial webs B 1 and B 2 in the transverse direction Q on the deflection structure 13, wraps around them, so that they as well as the partial webs B 1 and B 2 is turned in the new direction T.
  • the further developed spreader 10 corresponds to the spreader 10 of FIGS. 1 to 6 .
  • the deflecting structure 13 is also formed as a non-rotatably supported turning bar, apply to her in this respect made for the deflecting 11 and 12 statements.
  • the deflecting structure 13 does not have to be adjusted to adapt to different widths starting webs and therefore can be immobile relative to the frame of the printing press in preferred simple embodiments. It is arranged at a distance parallel to the common plane of the partial webs B 1 and B 2 running onto the deflecting structures 11 and 12.
  • the partial web B 3 which runs in the embodiment between the partial webs B 1 and B 2 , is arranged by means of upwardly disposed of the spreader 10 deflection devices 18 and 19 out of the hitherto common plane of the partial webs B 1 to B 3 and guided to the deflection structure 13, this case, however, the running direction Q at.
  • the deflecting axis formed by the deflecting structure 13 is correspondingly spaced parallel from the deflecting axes of the deflecting structures 11 and 12.
  • the sub-webs B 1 to B 3 are not affected with respect to the lateral distance, so that the running of the deflecting structures 11 and 12 partial webs B 1 and B 2 from each other and each of the sub-web B 3 the same lateral distance as when running on the upmost of the Deflection structures, in the example the Umlenkstrukur 11, have, wherein the lateral distance is measured as in the other embodiments in a direction orthogonal to the partial webs B 1 to B 3 top view.
  • the deflection structures 11 and 12 as based on the FIG. 2 explained misrepresented.
  • the upwardly deflecting structure 11 is adjusted against the running direction Q of the casserole and the more downward deflecting structure 12 in the running direction Q parallel to itself in the common web plane.
  • the deflection structure 13 can, as I said maintain their position. In this way, the partial webs B 1 and B 2 in relation to the running direction T of the running in particular each by the same amount x / 2 and symmetrically to the middle part of the web B 3 to the right and to the left are spread.
  • the third deflecting structure 13 may be arranged such that it is arranged between the axially reduced in such a modified embodiment deflecting structures 11 and 12 and in the initial state with these an escape.
  • the so-modified spreader 10 of the basis of FIG. 7 correspond described.
  • optional partial webs B 1 to B 3 can run unexpanded or spread apart from the spreader 10.
  • a non-cut starting web either the in the initial state located deflecting structures 11 and 12 of the embodiment of FIG. 7 or in the described modification, all three deflecting structures 11 to 13 wrap around together in order to be turned in the new running direction T.
  • deflecting structures 11 and 12 are adjusted to an adjustment state in which the partial webs B 1 and B 2 running from the deflecting structures 11 and 12 have a smaller lateral distance from one another at the location at which one of these partial webs B 1 and B 2 the more upright of the deflection structures 11 and 12, in the example shown on the deflection structure 11, runs.
  • the deflection structure 13 is also adjustable in or against the running direction Q of the casserole.
  • the further developed to the situation with three partial webs B 1 to B 3 spreader 10 may be arranged upward or downward of the pressure to infiltrate a starting web, or partial webs obtained therefrom in the case of the transverse orientation of a roll stand in the pressure or in the case of transverse alignment of a Auszuschleusen Lfitsfalz adopted from the pressure and align transversely to the Lssensfalz observed.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
EP09153762A 2009-02-26 2009-02-26 Dispositif et procédé d'écartement de bandes se déroulant dans le sens transversal par rapport à l'axe longitudinal d'une presse d'impression rotative Withdrawn EP2223806A1 (fr)

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EP09153762A EP2223806A1 (fr) 2009-02-26 2009-02-26 Dispositif et procédé d'écartement de bandes se déroulant dans le sens transversal par rapport à l'axe longitudinal d'une presse d'impression rotative

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EP09153762A EP2223806A1 (fr) 2009-02-26 2009-02-26 Dispositif et procédé d'écartement de bandes se déroulant dans le sens transversal par rapport à l'axe longitudinal d'une presse d'impression rotative

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103341880A (zh) * 2013-05-31 2013-10-09 常德金鹏印务有限公司 一种卷筒纸模切在线检测剔除装置及其方法
CN108858421A (zh) * 2018-08-31 2018-11-23 山东路德新材料股份有限公司 一种片板分切机及其使用方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9320795U1 (de) * 1993-12-15 1995-02-02 Albert-Frankenthal Ag, 67227 Frankenthal Falzapparat
WO1997015442A1 (fr) * 1995-10-23 1997-05-01 Clopay Plastic Products Company, Inc. Produit, dispositif et procede pour la production de stratifies en ruban a partir d'un film polymere et de bandes de materiau non tisse ou tisse
DE10023169A1 (de) 2000-05-11 2001-11-15 Roland Man Druckmasch Doppeltwirkende Spreizeinrichtung zur Spreizung einer Bahn
WO2005105447A1 (fr) 2004-05-04 2005-11-10 Koenig & Bauer Aktiengesellschaft Presses rotatives a imprimer
GB2419876A (en) * 2004-11-08 2006-05-10 Goss Graphic Systems Ltd Device and method for cutting and deflecting a printing web
DE102005039073A1 (de) * 2005-08-18 2007-03-01 Koenig & Bauer Ag Druckmaschinenanlage
EP1862303A2 (fr) * 2006-05-31 2007-12-05 MAN Roland Druckmaschinen AG Unité de barres de retournement dans une machine rotative d'impression

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9320795U1 (de) * 1993-12-15 1995-02-02 Albert-Frankenthal Ag, 67227 Frankenthal Falzapparat
WO1997015442A1 (fr) * 1995-10-23 1997-05-01 Clopay Plastic Products Company, Inc. Produit, dispositif et procede pour la production de stratifies en ruban a partir d'un film polymere et de bandes de materiau non tisse ou tisse
DE10023169A1 (de) 2000-05-11 2001-11-15 Roland Man Druckmasch Doppeltwirkende Spreizeinrichtung zur Spreizung einer Bahn
WO2005105447A1 (fr) 2004-05-04 2005-11-10 Koenig & Bauer Aktiengesellschaft Presses rotatives a imprimer
GB2419876A (en) * 2004-11-08 2006-05-10 Goss Graphic Systems Ltd Device and method for cutting and deflecting a printing web
DE102005039073A1 (de) * 2005-08-18 2007-03-01 Koenig & Bauer Ag Druckmaschinenanlage
EP1862303A2 (fr) * 2006-05-31 2007-12-05 MAN Roland Druckmaschinen AG Unité de barres de retournement dans une machine rotative d'impression

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103341880A (zh) * 2013-05-31 2013-10-09 常德金鹏印务有限公司 一种卷筒纸模切在线检测剔除装置及其方法
CN108858421A (zh) * 2018-08-31 2018-11-23 山东路德新材料股份有限公司 一种片板分切机及其使用方法
CN108858421B (zh) * 2018-08-31 2023-08-22 山东路德新材料股份有限公司 一种片板分切机及其使用方法

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