EP2208616A1 - Dispositif et procédé d'écartement de bandes pour impression rotative - Google Patents

Dispositif et procédé d'écartement de bandes pour impression rotative Download PDF

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Publication number
EP2208616A1
EP2208616A1 EP09150503A EP09150503A EP2208616A1 EP 2208616 A1 EP2208616 A1 EP 2208616A1 EP 09150503 A EP09150503 A EP 09150503A EP 09150503 A EP09150503 A EP 09150503A EP 2208616 A1 EP2208616 A1 EP 2208616A1
Authority
EP
European Patent Office
Prior art keywords
web
partial
turning
turning structure
webs
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Withdrawn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
EP09150503A
Other languages
German (de)
English (en)
Inventor
Christian Miescher
Daniel Buri
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 EP09150503A priority Critical patent/EP2208616A1/fr
Publication of EP2208616A1 publication Critical patent/EP2208616A1/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Withdrawn legal-status Critical Current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
    • 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
    • B41F13/64—Collecting
    • 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
    • B65H2801/00—Application field
    • B65H2801/03—Image reproduction devices
    • B65H2801/21—Industrial-size printers, e.g. rotary printing press

Definitions

  • the invention relates to an apparatus and a method for spreading side by side partial webs in the web-fed rotary printing. 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 must be adjusted laterally or the partial webs obtained in the longitudinal section of narrower webs 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 former is problematic in terms of the required accuracy and because of the effort that has to be done in case of an 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 serve only for spreading.
  • the spreaders must be precisely manufactured to ensure accurate tracking, they represent a not inconsiderable cost factor and take up space.
  • the spreading device is derived from turning devices.
  • partial webs which run side by side to the spreading device, are spread in at least two turning operations in each partial web, so that the partial webs during drainage from the spreading relative to each other have a different lateral distance than when running onto the spreading.
  • the spreading device can also be used as a turning device, with the partial webs are turned to each other in another print production, to jointly form a web bundle, which may additionally comprise a third or more further partial webs.
  • a spreading device comprises at least two turning structures for turning the associated partial web for adjacent partial webs.
  • the turning structures can be wrapped by the respective partial web and each form a deflection axis for the relevant partial web.
  • the turning structures may, for example, be freely rotatably supported, slender rolls, preferably they are formed as turning bars, i. as a rod-shaped slim, non-rotatable deflecting body.
  • they are acted upon from the inside with a pressurized gas, which can be blown in the pressure operation on the looped surface in order to reduce the friction in the loop.
  • the spreading device accordingly comprises a first turning structure for a running in the direction of the first turning structure first partial web and a second turning structure for a second partial web, which runs in plan view of the two Operabahenn to the first turning structure next to the first partial web.
  • the direction of travel here is understood to be the local direction into which the first partial web runs up to a line at which it is deflected by means of the first turning structure, ie the local running direction until entry or emergence into the looping around of the first turning structure.
  • the partial webs can be up to the first turning structure in the plan view and in a orthogonal to the top view side view in parallel directions, in particular run in a common plane, inevitable but this is not necessary. Preferably, they run in two views at least substantially parallel.
  • the first turning structure and the second turning structure are arranged so that each of the partial webs is turned to the side of the other of the partial webs, ie the diverted partial webs diverge transversely to the previous direction, each extending the other sub-web or their extension in the said direction crosses.
  • the spreading device further comprises a further, third turning structure for the first partial web and also a further, fourth turning structure for the second partial web.
  • the third turning structure and the fourth turning structure are arranged so that the laterally running partial webs are turned back in the running direction in which they run on the respective upward first or second turning structure.
  • the back-turned partial webs have a different, preferably larger lateral spacing relative to one another than at the location at which the first partial web runs on the first turning structure.
  • the back-turned partial webs run in a top view again next to each other. They can run in the new distance immediately next to each other, directly adjacent. But it can also run another, third part of the track between them.
  • the invention makes use of the known turning of partial webs to advantage, however, in order to spread these partial webs relative to each other.
  • the first and the second partial web are turned by means of the upward first or upward second turning structure in the first turning operation in the transverse direction and guided over the respective other partial web or the imaginary extension of the respective other partial web and subsequently turned back in the running direction by means of the downward third or fourth turning structure in the respective second turning operation.
  • one of the partial webs is deposited on the other for the partial webs a total of two turning operations.
  • the partial webs do not run one above the other but side by side from the downward turning structures, but with a different lateral spacing than when the first partial web runs onto the first turning structure. Further, they exchange the sides with each other: that part track which enters the spreader on the left in the top view of the other, runs off to the right of the other.
  • the first and the third turning structure alone or together with one or more further turning structure (s) or one or more other deflection structure (s) form one Turning device for the first part of the web
  • the second and fourth turning structure alone or together with one or more other turning structure (s) or one or more other deflection structure (s) form a turning device for the second part of the web.
  • the partial webs can be obtained in particular from a broader original web by longitudinal section. If the original web is cut longitudinally only once and thus only two partial webs are produced, these partial webs at the location where the first part web runs on the first turning structure have a lateral distance of practically "zero" in plan view from one another. When running from the third or fourth turning structure they are spread apart from each other and accordingly have a greater lateral distance from each other than at the place of casserole. In principle, however, it is also conceivable that the partial webs running into the spreading device, that is to say running onto the first or second turning structure, already have a distance between them which can be enlarged or in principle also reduced by means of the spreading device. The partial webs must not have been generated in all circumstances by longitudinal section of the same original web.
  • partial webs In principle, they may have been obtained from different starting tracks by longitudinal section. In yet another variant, they are handled directly as partial webs of one roll each.
  • the term "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, wherein the two partial webs may be in particular the same width, but in principle also different widths.
  • An advantage of the spreading by turning operations is the exact web guide due to the large compared to the conventional spreading devices angle over which the partial webs can wrap around each associated turning structures or basically wrap around.
  • the wrap angles are at least substantially 180 °, as in conventional turning.
  • the spreading device can have an advantageously low height orthogonal to the surfaces of the incoming part webs.
  • only two turning structures suffice for the laterally offset and thereby to be spread partial webs. Additional deflection structures are not required, the presence of additional deflection structures but should not be excluded.
  • the partial webs can not only be spread apart from one another by means of the spreading device, but either the first partial web or the second partial web can be turned on the respective other partial web or on a third partial web or, if a third partial web next to first and second sub-train is running.
  • the options provide flexibility for blending sub-webs into web bundles.
  • the at least two turning structures of the turning device for the first partial web are preferably parallel to one another.
  • the first and third turning structures may be crossed in plan view to the incoming first partial web, i. the deflection axes formed by these turning structures intersect each other.
  • the spreading device requires at least one additional deflection structure for the first part track, if it is to be turned back in the running direction of running onto the first turning structure in the second turning operation.
  • What has been said for the turning structures of the first partial web also applies to the arrangement of the at least two turning structures for the second partial web in relation to one another.
  • two turning operations are sufficient for both partial webs without additional deflection operation (s) between the two turning operations per partial web.
  • the turning device for the first partial web or the turning device for the second partial web is adjustable in preferred embodiments.
  • 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 only result in a meaning limited to a single one of the two meanings. Based on the example of adjustability thus results that in a first embodiment, only the turning device for the first part of the web and in an alternative second embodiment, only the turning device for the second partial web is adjustable to change the lateral distance can.
  • both the turning device for the first partial web and the turning device for the second partial web are adjustable for adjusting the lateral distance.
  • the adjustment is preferably coordinated by the same amount, so that both partial webs are offset by the same amount laterally to each themselves.
  • at least one of the turning structures of the respective turning device is adjustable by the respective turning structure is released by hand and fixed in a new position, namely by location or orientation again
  • a motorized adjusting device is provided, by means of which the relevant turning structure is automatically adjusted during the changeover from a printing format to a printing format of a different width.
  • the different adjustment positions are preferably predetermined, with manual adjustability mechanically by fixing positions and motorized adjustment expediently control technology.
  • the distance between the turn structures of the same turning device is adjusted in preferred embodiments when using parallel arranged turn structures.
  • the downward turning structure of the respective turning device is advantageously adjusted parallel to itself and thus also to the upward turning structure of the same turning device according to the desired spreading dimension or lateral spacing.
  • both turning structures of the same turning device are pivoted in a coordinated manner, for example by a respective pivot axis which is orthogonal to the plane of the incoming part webs or guided on a curved curved path.
  • the downward third or fourth turning structure for the change between different widths of printing formats or even different widths wide webs only linearly, adjusted parallel to itself, either manually by mounting in the new position or by motor-driven linear process of the respective turning structure.
  • the adjustable turning structure is preferably adjustable so that the deflecting axis formed by it extends in each adjustment position in the same plane and this plane is parallel to the plane of the associated part track at the place of casserole on the upturning structure associated with this part track. In this way, despite the adjustment of the lateral distance, the height of the spreading device measured orthogonally to the surfaces of the incoming partial webs can be minimized.
  • the longitudinal cut can be carried out in a spaced manner from the spreading device.
  • the partial webs can be printed for example between the cutting device and the spreading device.
  • the cutting device of the spreading device is directly assigned by being arranged directly in front of the spreading device and at most one or more deflection operation (s) is carried out between the cutting device and the spreading device, which does not change their direction of travel in plan view of the respective partial web or change.
  • the invention relates to the spreading device in the installed state as part of a web-fed rotary printing press, but also as such, for example, in the delivery state prior to assembly with other components of the web-fed rotary printing press.
  • it When installed, it can be arranged in the running direction of the partial webs upwards from a printing unit of the machine in order to be able to spread the partial webs before printing. More preferably, however, the spreader is located downstream of the print, in the case of the preferred multicolor print downstream of the last print nip in which the sub-webs or, more preferably, the original web from which the sub-webs are obtained are or will be printed.
  • a non-longitudinally cut starting web is printed in at least one, preferably a plurality of printing nips, longitudinally cut after printing in the partial webs, and the partial webs thus obtained are laterally offset by means of the spreading device, so that they are aligned with associated Leksfalz wornen.
  • the longitudinal folding devices may in particular be a former.
  • FIG. 1 shows a spreading device for two side by side in the direction of F running partial webs B 1 and B 2 .
  • the spreading device is formed by two turning devices, namely a first turning device for the partial web B 1 and a second turning device for the partial web B 2 .
  • the first turning device comprises a first turning structure 1 which is upwards with respect to the running direction F and a downward turning structure 3 for carrying out in each case a turning operation on the part web B 1 .
  • the second turning device comprises an upward, second turning structure 2 and a downward turning structure 4 for performing a turning operation on the part web B 2, respectively.
  • the turning structures 1 to 4 each form a deflection axis for the associated partial web B 1 or B 2 .
  • Turning structures 1 to 4 are designed as turning bars. They are not rotatable. Their outer circumference can advantageously be acted upon by compressed air in order to reduce the friction with the wrapping part web B 1 or B 2 .
  • the turning structures 1 and 3 are parallel to each other.
  • the turning structures 2 and 4 are also parallel to each other.
  • the two turning means are already formed solely by the respective pair of turning structures, the first turning means alone of the pair of turning structures 1 and 3, and the second turning means alone of the pair of turning structures 2 and 4.
  • the turning structures 1 and 3 have in the plan view of the partial webs B 1 and B 2 , each with an inclination to the turning structures 2 and 4.
  • the inclination is preferably 90 °, but basically the turning structures 1 and 3 could also be under another Tilt angle to the turning structures 2 and 4 point.
  • the turning structures 1 and 3 have in the plan view of the partial web B 1 each with an inclination of 45 ° to the direction F of the first turning structure 1 current partial web B 1 , in principle, the turning structures 1 and 3 but also at a different angle of inclination to this Direction F show.
  • the turning structures 2 and 4 have in the plan view of the partial web B 2 each with an inclination of 45 ° to the running direction F of the second turning structure 2 current partial web B 2 , in principle, the turning structures 2 and 4 but also at a different angle of inclination to this Direction F show. However, the inclination angles to the direction F should be the same for a parallel run-off.
  • the turning structures 1 to 4 are further aligned so that the deflection axes of the upward turning structures 1 and 2 together form an open against the running direction F "V".
  • the deflection axes of the downward turning structures 3 and 4 also form a "V" with each other, which, however, points with its tip against the direction of travel F of the incoming partial web B 1 or B 2 .
  • the turning structures 1 to 4 are arranged so that they each act only on the associated sub-web B 1 or B 2 , which, however, do not influence each other sub-web.
  • the upward turning structures 1 and 2 intersect each other in the middle between the sub-webs B 1 and B 2 and are there each crosswise slightly above the side of the associated sub-web B 1 or B 2 in the direction of the other sub-web. This also applies to the downward turning structures 3 and 4.
  • the turning structures 1 and 3 form a lower and the turning structures 2 and 4 an upper turning corner.
  • a cutting device 5 is arranged, with which a starting web, in particular a four-page-wide starting web, is cut longitudinally into the two part webs B 1 and B 2 .
  • the partial webs B 1 and B 2 are the same width, preferably two newspaper pages in each case.
  • the partial web B 1 runs in the running direction F on the turning structure 1, wraps around this at least substantially 180 °, so that it transversely to the running direction F in the transverse direction Q to Side of the partial web B 2 is turned.
  • the turned part web B 1 is then guided over the turning structure 3 and wraps around this by at least substantially also 180 °, so that it expires in the running direction F turned away from the turning structure 3.
  • FIG. 1 shows the spreading device in an initial state.
  • the spreading device is adjusted so that the partial webs B 1 and B 2 exchange only the sides by the turning operations, the lateral distance x between the partial webs B 1 and B 2 is not changed.
  • the side exchange opens at least possibilities of variation for the mixing of the partial webs B 1 and B 2 to web bundles, each with one or more other webs or partial webs.
  • the two turning devices are adjustable in order to process output paths even without adjustment of downstream L Lucassfalz coupleden, which have a smaller width than the nominal width. If the starting web is such a narrower web, both turning devices of the spreading device are adjusted so that the running part webs B 1 and B 2 have a larger lateral distance x between them than immediately after the longitudinal cut.
  • FIG. 2 shows the spreading after adjusting to a new lateral distance x.
  • the distance x is selected so that each of the partial webs B 1 and B 2 is aligned with the respective associated longitudinal folding device.
  • the downward turning structures 3 and 4 are arranged in the plan view of the incoming partial webs B 1 and B 2 movable parallel to itself and coupled to a motorized adjustment by means of which the adjustment can be automatically effected.
  • the turning structure 3 Compared to the initial state of FIG. 1 was the turning structure 3 in a plane parallel to the incoming partial web B 1 level parallel to itself in the transverse direction Q, ie offset transversely to the direction F.
  • the adjustment of the turning structure 3 is indicated by the directional arrow Q.
  • the turning structure 4 was offset in a plane parallel to the incoming partial web B 2 level parallel to in the opposite direction -Q.
  • the offset of the two turning structures 3 and 4 is equal to the initial state, so that the partial webs B 1 and B 2 are each offset by the same amount x / 2 to itself.
  • the sub-web B 1 thus runs from the turning structure 1 in the transverse direction Q to the turning structure 3, where it crosses the adjacent sub-web B 2 or their imaginary extension and for the purpose of spreading in the transverse direction Q on the sub-web B 2 and their imaginary extension is fed out so that it is widely offset by the turning back by means of the turning structure 3 with respect to the imaginary extension of the incoming partial web B 2 around a piece to the outside, in the exemplary embodiment by half the distance x / 2.
  • the other sub-web B 2 With the other sub-web B 2 , the same is done in mirror image, the same in the transverse direction -Q to the other side.
  • the orthogonal to the common plane or the two optionally slightly inclined planes of the partial webs B 1 and B 2 measured height of the spreading device substantially corresponds only to the sum of the diameters of the turning structures 1 to 4. Since the two turning device, in the exemplary embodiment, the turning structures 3 and 4, each in a plane are adjustable, which is parallel to the level of each incoming partial web B 1 or B 2 , the orthogonal to the surfaces of the partial webs B 1 and B 2 measured height of the two turning devices and thus the spreading is also by the adjustment the lateral distance x not changed, but corresponds in each adjustment state of the spreading at least substantially only the sum of the diameters of the turning structures 1 to 4.
  • the spreading device offers flexibility not only in terms of adjustability to different widths starting webs and thus different widths of partial webs.
  • FIG. 1 already an additional possibility for a variation for mixing the partial webs into bundles.
  • the page exchange in particular still exist the two possibilities that either only the partial web B 1 turned twice and placed on the sub-web B 2 , which is unaffected in such a variant by, under or over the spreading device, or the sub-web B 2 is deposited on the sub-web B 1 , which would run unaffected by, under or over the spreading device in such another variant.
  • the spreading device thus provides beyond the spreading out all the possibilities of Mixing conventional turning devices, although each of the partial webs B 1 and B 2 can be selectively turned to the other.
  • FIGS. 3 and 4 show a spreading device for three adjacent to each other in the spreading device incoming partial webs B 1 , B 2 and B 3rd
  • the partial webs can be obtained, for example, from a six-page-wide starting web by longitudinal cutting with two cutting devices 5.
  • the partial webs can be of the same width, in each case two pages in the example given, in particular newspaper pages. But they can also be different widths, which also for the embodiment of Figures 1 and 2 applies. Since the spreading operation is performed only on the two outer partial webs B 1 and B 2 , while the middle part of web B 3 runs without offset through the spreader or past this, the two upward turning structures 1 and 2 and the two downward turning structures.
  • FIG. 3 shows, to the outside by the width of the middle sub-web B 3 separated from each other. Otherwise, they correspond to the turning structures 1 to 4 of the spreading of the Figures 1 and 2 ,
  • the spreading comprises the FIG. 3 additional deflecting structures 6 and 7 in the form of slender guide rollers or optionally also non-rotating deflecting bars for the sub-web B 3, which is uninfluenced by the spreading.
  • the partial web B 3 is guided by means of the deflecting structures 6 and 7 out of the common plane of the incoming partial webs B 1 , B 2 and B 3 , so that it continues orthogonally to this plane and continues past the spreading device in the running direction F.
  • the spreading devices of the two embodiments correspond to each other.
  • FIG. 4 shows the spreading of the FIG. 3 after adjustment, ie after adjustment to a starting web having a width which is smaller than the nominal width.
  • the two outer partial webs B 1 and B 2 are in each case two turning operations, which were described with reference to the first embodiment, have been spread apart by a certain amount, so that they are aligned with the respectively associated L Lucassfalz Nur and when running out of the spreading device from each other have an increased distance x.
  • the middle sub-web B 3 is again assumed that it is already aligned from home on the associated longitudinal folding device.
  • a further turning device or other device for parallel displacement of the partial web B 3 may be provided downstream of the spreading device.
  • the sub-webs B 1 and B 2 are symmetrically offset by the same distance to the left and right of the middle sub-web B 3 . With directional arrows Q and -Q is again the adjustment of the turning structures 3 and 4 indicated.
  • the spreading device of the second embodiment provides for the three partial webs B 1 , B 2 and B 3 comparable variations as the spreader of the first embodiment, for example, the interchanging of the two outer partial webs B 1 and B 2 , further turning either either the partial web B 1 or the sub-web B 2 on the other or on the sub-web B 3rd Furthermore, both partial webs B 1 and B 2 can be turned onto the partial web B 3 .
  • the middle sub-web B 3 is subjected to no spreading operation, because it is assumed that the sub-web B 3 is already aligned from home to a longitudinal folding device. However, this is not necessary. Thus, for example, be 2 already aligned with one of the longitudinal folding a part of the outer webs B 1 and B.
  • the two remaining each other sub-webs would be subjected to a spreading operation according to the invention, wherein preferably a spreading device according to the invention would be used, preferably the spreading device of Figures 1 and 2 for either the partial webs B 1 and B 3 or the partial webs B 2 and B 3 .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
EP09150503A 2009-01-14 2009-01-14 Dispositif et procédé d'écartement de bandes pour impression rotative Withdrawn EP2208616A1 (fr)

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EP09150503A EP2208616A1 (fr) 2009-01-14 2009-01-14 Dispositif et procédé d'écartement de bandes pour impression rotative

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Application Number Priority Date Filing Date Title
EP09150503A EP2208616A1 (fr) 2009-01-14 2009-01-14 Dispositif et procédé d'écartement de bandes pour impression rotative

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EP2208616A1 true EP2208616A1 (fr) 2010-07-21

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107651386A (zh) * 2017-10-23 2018-02-02 福建工程学院 一种多角度调节皮带转弯机

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0342491A2 (fr) * 1988-05-18 1989-11-23 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Dispositif de retournement pour retourner et/ou déplacer une bande imprimée
EP0582927A1 (fr) * 1992-08-10 1994-02-16 KOENIG & BAUER-ALBERT AKTIENGESELLSCHAFT Barre de retournement pour des matériaux en bande
DE10023169A1 (de) 2000-05-11 2001-11-15 Roland Man Druckmasch Doppeltwirkende Spreizeinrichtung zur Spreizung einer Bahn
US20020195009A1 (en) * 2001-06-22 2002-12-26 Boucher Ronald Henry Device for guiding a travelling web
EP1386869A2 (fr) * 2002-07-30 2004-02-04 Maschinenfabrik Wifag Dispositif pour étirer une bande
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
WO2007124951A1 (fr) * 2006-05-02 2007-11-08 Wifag Maschinenfabrik Ag Dispositif d'écartement de tronçons de voies ferrées

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0342491A2 (fr) * 1988-05-18 1989-11-23 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Dispositif de retournement pour retourner et/ou déplacer une bande imprimée
EP0582927A1 (fr) * 1992-08-10 1994-02-16 KOENIG & BAUER-ALBERT AKTIENGESELLSCHAFT Barre de retournement pour des matériaux en bande
DE10023169A1 (de) 2000-05-11 2001-11-15 Roland Man Druckmasch Doppeltwirkende Spreizeinrichtung zur Spreizung einer Bahn
US20020195009A1 (en) * 2001-06-22 2002-12-26 Boucher Ronald Henry Device for guiding a travelling web
EP1386869A2 (fr) * 2002-07-30 2004-02-04 Maschinenfabrik Wifag Dispositif pour étirer une bande
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
WO2007124951A1 (fr) * 2006-05-02 2007-11-08 Wifag Maschinenfabrik Ag Dispositif d'écartement de tronçons de voies ferrées

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107651386A (zh) * 2017-10-23 2018-02-02 福建工程学院 一种多角度调节皮带转弯机
CN107651386B (zh) * 2017-10-23 2023-05-30 福建工程学院 一种多角度调节皮带转弯机

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